US20090139261A1 - Cooler for heater-containing box - Google Patents
Cooler for heater-containing box Download PDFInfo
- Publication number
- US20090139261A1 US20090139261A1 US11/997,389 US99738906A US2009139261A1 US 20090139261 A1 US20090139261 A1 US 20090139261A1 US 99738906 A US99738906 A US 99738906A US 2009139261 A1 US2009139261 A1 US 2009139261A1
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- US
- United States
- Prior art keywords
- air
- path
- cooler
- heater
- heat transfer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
- F28D9/0037—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the conduits for the other heat-exchange medium also being formed by paired plates touching each other
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
- F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
- F24F12/006—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an air-to-air heat exchanger
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0062—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by spaced plates with inserted elements
- F28D9/0068—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by spaced plates with inserted elements with means for changing flow direction of one heat exchange medium, e.g. using deflecting zones
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
- F28F3/048—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of ribs integral with the element or local variations in thickness of the element, e.g. grooves, microchannels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20536—Modifications to facilitate cooling, ventilating, or heating for racks or cabinets of standardised dimensions, e.g. electronic racks for aircraft or telecommunication equipment
- H05K7/206—Air circulating in closed loop within cabinets wherein heat is removed through air-to-air heat-exchanger
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
- F28F2250/10—Particular pattern of flow of the heat exchange media
- F28F2250/108—Particular pattern of flow of the heat exchange media with combined cross flow and parallel flow
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/56—Heat recovery units
Abstract
Description
- The present invention relates to a box-like structure which is installed outdoor, the box having precision equipment which has a heating element such as an electronic component therein and requires cooling even in winter because of high heat generation, and whose performance and life are greatly affected by temperature. In particular, the present invention relates to a cooling device for the box.
- Recently, high performance of electronic components and densification of the electronic components with respect to a control board have been advanced, and an amount of heat generated from the control board is being dramatically increased. With this increase, the temperature within the box is likely to increase so that guarantee of operation of the electronic components provided on the control board and the product life are greatly affected by temperature within the box. Therefore, reliability is becoming difficult to be assured unless the temperature within the box is cooled down to a certain temperature or lower.
- As described in, for example, Unexamined Japanese Patent Publication No. 2001-156478, a cooler for heater-containing box which cools down such type of box by air heat exchanging has been conventionally known to be installed on an outer surface of the box.
- Hereinafter, referring to
FIG. 23 , the conventional cooler for heater-containing box will be described. - As shown in
FIG. 23 , the cooler for heater-containing box has, within box 301: insideair path 305 that takes the air of the cooler for heater-containing box via insideair suction port 302 and returns it to the box; outsideair path 309 that takes the outside air via outsideair suction port 306 and exhausts it via outsideair blowout port 308; anddiaphragm 310 placed to separate these twoair paths outside air fan 303B for conveying air inoutside air path 309 is arranged such that the rotating shaft of the fan is perpendicular to the air intake direction via outsideair suction port 306, and insideair fan 303A for conveying air ininside air path 305 is arranged such that the rotating shaft of the fan is perpendicular to the air intake direction via insideair suction port 302.Heat exchanger 304, which is arranged at the intersection of the air paths and exchanges sensible heat of the outside air and the inside air, is further included.Box 301 is installed outside of a panel of the box containing heating element, and cools down the box containing heating element. - In such conventional cooler for heater-containing box, since the rotating shaft of the fan is perpendicular to the air inlet direction, the dimension (hereinafter referred to as depth) of the cooler for heater-containing box, which is in the perpendicular direction to the panel of the box containing heating element, is restricted by the fan diameter. Thus, the conventional cooler for heater-containing box has a problem of larger size, and is required to be thinner.
- In addition, since one inside air fan and one outside air fan are provided, the cooling device cannot function at all when the inside air fan or the outside air fan is broken. Therefore, it is required that the cooling device work even at the breakage of the fan.
- Furthermore, due to the complicated configuration, there are problems of complicated manufacturing, maintenance and construction. Therefore, it is required that the configuration be simple and the manufacturing, maintenance and construction be easily achieved.
- Moreover, as described in Unexamined Japanese Patent Publication No. 2004-286419, the conventional counter-current heat exchanger used in the conventional cooler for heater-containing box is a heat exchanger in which first
heat transfer plate 101 and secondheat transfer plate 102, which are machined by vacuum-molding of polystyrene sheet, are alternately stacked. - Hereinafter, referring to
FIG. 22 , the heat exchanger will be described. - First
heat transfer plate 101 and secondheat transfer plate 102 have a rectangular plane shape, and are obtained by being formed by the vacuum-molding of polystyrene sheet and thereafter cutting extra sheet by a Thomson die or the like. Firstheat transfer plate 101 has substantially L-shapedair path ribs 103, which are formed to be in a hollow convex shape, in substantially parallel with and at substantially equal spaces to one another.Air path ribs 103 define substantially L-shapedfirst air path 104 andheat transfer plane 105. - An outlet/inlet portion of
first air path 104 is provided with airpath end face 106, where the edge of firstheat transfer plate 101 is bent to the opposite direction to the protrusion direction ofair path ribs 103. Both ends ofair path rib 103 are provided with a plurality of hollow convex-shapedfirst protrusions 107 protruded to the same direction as the protrusion direction ofair path ribs 103. - Peripheral rib A (not shown), which is formed to have a hollow convex shape protruded to the same direction as the protrusion direction of
air path ribs 103, is provided at the peripheral edge portion other than the inlet and outlet offirst air path 104 of firstheat transfer plate 101, the peripheral edge portion being sandwiched between the inlet and outlet offirst air path 104 and being in substantially parallel with an air path portion serving as the counter current. Peripheral rib A108 b having the same shape is provided diagonally to peripheral rib A. - The outer side surfaces of peripheral rib A108 b are structured to be bent to the same position as air
path end face 106. - Peripheral rib B109 having the same shape is provided at the peripheral edge portion other than the inlet/outlet of
first air path 104 of firstheat transfer plate 101 and peripheral rib A108 b. Peripheral rib B109 a of peripheral rib B109 is substantially parallel with peripheral rib A108, and peripheral rib B109 b is substantially perpendicular to peripheral rib A108. - Note that an alphabetic lower letter at the end of reference numeral is applied for distinguishing from the similar reference numeral because the reference numerals denote the portions having the same function but different arrangements. It should be also noted that the reference numeral having no additional character includes a plurality of reference numerals with additional character.
- Peripheral rib B109 has a hollow convex shape protruded to the same direction as the protrusion direction of
air path ribs 103. The center portion of the outer side surface of peripheral rib B109 b is bent to the same position asheat transfer plane 105 and is provided with air path opening 110. The both end portions thereof are bent to the same position as airpath end face 106 and is provided with air pathend face cover 111. - Hollow convex-shaped
second protrusion 112 a, which is protruded to the same direction as the protrusion direction ofair path ribs 103, is provided at the portion closer to airpath end face 106 of peripheral rib B109 a.Second protrusion 112 a is substantially perpendicular tosecond protrusion 112 b provided on secondheat transfer plate 102 located thereabove. The upper surface ofsecond protrusion 112 a is abutted against the lower surfaces of peripheral ribs B109 a and 109 b which are provided on secondheat transfer plate 102 located thereabove. - Second
heat transfer plate 102 has a similarity relation to firstheat transfer plate 101, and is formed such that the height of peripheral ribs A108 c, 108 d of secondheat transfer plate 102 of the portions provided at secondheat transfer plate 102 is equal to the height ofair path rib 103, and moreover such that the width of peripheral ribs A108 c, 108 d of secondheat transfer plate 102 is wider than the width of peripheral rib A108 b of firstheat transfer plate 101. -
Air path rib 103, which is being substantially parallel with firstheat transfer plate 101 and peripheral rib A108 b of secondheat transfer plate 102, is provided with a plurality of hollow convex-shaped protrusions C113 protruded to the same direction to the protrusion direction ofair path ribs 103, or air-path-rib stack portions 114 intermittently widening the width ofair path rib 103. Protrusions C113 and air-path-rib stack portions 114 at firstheat transfer plate 101 and secondheat transfer plate 102 are not aligned with respect to the stack direction such that the upper surface of protrusion C113 is abutted against the lower surface ofair path rib 103 of secondheat transfer plate 102 which is located thereabove, or the upper surface of air-path-rib stack portion 114 is abutted against the lower surface of firstheat transfer plate 101 which is located thereabove. - First
heat transfer plates 101 and secondheat transfer plates 102 which are formed in the above manner are alternately stacked,first air paths 104 andsecond air paths 115 are alternately provided, and peripheral side surfaces are heat welded and the like, thereby constituting the heat exchanger. Heat exchange is conducted between the fluid flowing infirst air path 104 and the fluid flowing insecond air path 115. - Such conventional heat exchanger becomes easy to be flexible as the area of the heat transfer plates increases. When the pressure subjected from the fluid flowing in air paths increases, the adjacent air path ribs fit to each other so that the air-path height may become lower and air-flow resistance may increase. Therefore, it is required to maintain the air-path height and suppress the increase in air-flow resistance.
- In addition, since the air-path-rib stack portion is wider than the air path rib, a portion of the air-path-rib stack portion has a narrow air-path width and the air-flow resistance increases. Therefore, it is required to suppress the increase in air-flow resistance without decreasing the air-path width.
- Moreover, since the plurality of L-shaped air paths formed at the rectangular heat transfer plate has different air-path lengths, the air flow in each air path is different, thereby generating the temperature difference, so-called temperature distribution, of the heat-exchanged air in each air path at the discharging portion. Therefore, the improvement of the temperature distribution is required.
- Particularly, when a blowout port of equipment on which the heat exchanger is mounted is close to the outlet of the heat exchanger, low-temperature air caused by the temperature distribution may be blown at low outside temperature, low air flow or the like.
- Moreover, when the peripheral side surfaces of the stacked heat transfer plates are heat welded, the height of the opening and the air-path height at the peripheral side may be reduced due to heat contraction. Therefore, it is required to maintain the height of the opening and the air-path height at the peripheral side, and to suppress the increase in air-flow resistance.
- Moreover, in order to prevent poor welding during the heat welding, the welding process needs many steps. Therefore, it is required to reduce the steps of the welding process and enhance the productivity.
- Moreover, burr is left at the inlet or outlet portion of the air path in cutting the extra sheet from the heat transfer plate, and the burr may cause the height of the opening at the inlet or outlet portion to be lowered and the air-flow resistance to be increased. Therefore, it is required to prevent the decrease in the height of the opening due to the burr and to suppress the increase in the air-flow resistance.
- A cooler for heater-containing box of the present invention has: an inside air path which takes the air of the box containing heating element and circulates the air by returning it into the box containing heating element; and an outside air path which takes the outside air and exhausts it to the outside, wherein an outside air fan for conveying the air on the outside air path and an inside air fan for conveying the air on the inside air path are arranged such that the rotating shaft of each fan is in parallel with the air intake direction, a heat exchanger for exchanging sensible heat of the outside air and the inside air is arranged between the outside air path and the inside air path such that a suction port provided at a longitudinal air-path side of the heat exchanger is aligned with a blowout port of the fan, and a control unit for controlling the operation of the fans is included.
- According to the present invention, since the depth dimension of the cooler for heater-containing box is not restricted by the fan diameter, the cooler for heater-containing box having thin depth can be provided.
- Moreover, in the heat exchanger used in the cooler for heater-containing box of the present invention, an air-path-retaining-member, which is provided at the portion where the fluids flowing on the first air path and the second air path form a counter current has a curved shape in stacking the first heat transfer plate and the second heat transfer plate.
- With this structure, the air-path height can be maintained and the increase in the air-flow resistance can be suppressed, and thereby the heat exchanger capable of suppressing the increase in the air-flow resistance without decreasing the air-path width can be obtained.
-
FIG. 1 is an installation diagram of a cooler for heater-containing box inEmbodiment 1 of the present invention; -
FIG. 2 is an outline view and a structural diagram at the inside of the cooler for heater-containing box inEmbodiments 1 and 8 of the present invention; -
FIG. 3 is an outline view at the outside of the cooler for heater-containing box inEmbodiments -
FIG. 4 is a structural diagram relating to a temperature detector of the cooler for heater-containing box inEmbodiment 2 of the present invention; -
FIG. 5 is a structural diagram relating to a heat insulating material of the cooler for heater-containing box inEmbodiment 3 of the present invention; -
FIG. 6 is a structural diagram relating to a heat insulating material of the cooler for heater-containing box inEmbodiment 4 of the present invention; -
FIG. 7 is a structural diagram of a fan of the cooler for heater-containing box in Embodiment 6 of the present invention; -
FIG. 8 is a structural diagram of a reinforcing member of the cooler for heater-containing box in Embodiment 7 of the present invention; -
FIG. 9 is an assembly diagram of a control unit of the cooler for heater-containing box inEmbodiment 9 of the present invention; -
FIG. 10 is a structural diagram of the control unit of the cooler for heater-containing box inEmbodiment 10 of the present invention; -
FIG. 11 is a structural diagram relating to a drain pan of the cooler for heater-containing box inEmbodiment 11 of the present invention; -
FIG. 12 is a structural diagram of a drain pan of the cooler for heater-containing box inEmbodiment 12 of the present invention; -
FIG. 13 is a schematic exploded perspective view of a heat exchanger according toEmbodiment 13 of the present invention; -
FIG. 14 is a schematic perspective view of the heat exchanger at the stacking of heat transfer plates according toEmbodiment 13 of the present invention; -
FIG. 15 is a schematic perspective view of the heat exchanger at the stacking of heat transfer plates from the stacking direction according toEmbodiment 13 of the present invention; -
FIG. 16 is a schematic cross sectional view in the stacking state of peripheral rib A and peripheral rib B near an opening of the heat exchanger according toEmbodiment 13 of the present invention; -
FIG. 17 is a schematic cross sectional view of an inlet of the heat exchanger prior to heat welding according toEmbodiment 13 of the present invention; -
FIG. 18 is a schematic cross sectional view of the inlet of the heat exchanger after the heat welding according toEmbodiment 13 of the present invention; -
FIG. 19 is a plan view of a first heat transfer plate according toEmbodiment 14 of the present invention; -
FIG. 20 is a schematic arrangement plan showing a positional relationship between the first heat transfer plate and the fan according to Embodiment 15 of the present invention; -
FIG. 21 is a schematic arrangement plan showing the positional relationship between the first heat transfer plate and the fan according to Embodiment 15 of the present invention; -
FIG. 22 is a schematic exploded perspective view showing a conventional heat exchanger; and -
FIG. 23 is a structural diagram of a conventional cooler for heater-containing box. - 1 first air path
- 1 a first air path
- 1 b first air path
- 1 c first air path
- 1 d first air path
- 1 e first air path
- 1 f first air path
- 1 g first air path
- 1 h first air path
- 1 i first air path
- 1 j first air path
- 2 second air path
- 3 curved air path rib (air-path-retaining-member)
- 4 inlet (inlet portion)
- 4 a inlet
- 5 outlet (outlet portion)
- 6 air path opening
- 6 a air path opening (first opening)
- 6 b air path opening (second opening)
- 7 peripheral rib A (first shielding member)
- 7 a peripheral rib A
- 7 b peripheral rib A
- 8 peripheral rib B (second shielding member)
- 8 a peripheral rib B
- 8 b peripheral rib B
- 8 c peripheral rib B
- 8 d peripheral rib B
- 8 e peripheral rib B
- 8 f peripheral rib B
- 9 side-surface cover (sealing member)
- 10 semicircular recessed portion (peripheral-air-path-retaining-member)
- 11 side-surface reinforcing member (side-surface-retaining-member)
- 12 burr
- 13 fan
- 14 blowout port
- 101 first heat transfer plate
- 102 second heat transfer plate
- 103 air path rib
- 104 first air path
- 105 heat transfer plane
- 106 air path end face (sealing member)
- 107 first protrusion (opening retaining member)
- 108 peripheral rib A
- 109 peripheral rib B
- 110 air path opening
- 111 air path end face cover
- 112 second protrusion
- 113 protrusion C
- 114 air-path-rib stack portion
- 115 second air path
- 210 cooler for heater-containing box
- 200 box for containing heating element
- 260 door
- 201 box
- 202 inside air suction port
- 203 inside air fan
- 204 heat exchanger
- 205 inside air blowout port
- 206 inside air path
- 207 outside air suction port
- 208 outside air fan
- 209 outside air blowout port
- 211 inside-air-temperature-detector
- 212 outside-air-temperature-detector
- 213 control unit
- 214 outside air path
- 215 turbo fan
- 216 inside air blowout port
- 217 outside-air-via-hole
- 218 inside-air-via-hole
- 219 heat insulating material
- 220 guide
- 221 groove
- 222 intermediate wiring
- 223 operating window
- 224 connector
- 225 orifice
- 226 fan fixing plate
- 227 mounting portion
- 228 mounting hole
- 229 reinforcing member
- 230 panel
- 231 protrusion
- 232 slit
- 233 exhaust heat hole
- 234 printed substrate
- 235 handle
- 236 rail
- 237 radiating plate
- 238 printed substrate
- 239 exhaust outlet
- 240 drain pan
- 241 drain pan groove
- A cooler for heater-containing box of the present invention has: an inside air path which takes the air of the box containing heating element and circulates the air by returning it into the box containing heating element; and an outside air path which takes the outside air and exhausts it to the outside, wherein an outside air fan for conveying the air on the outside air path and an inside air fan for conveying the air on the inside air path are arranged such that the rotating shaft of each fan is in parallel with the air intake direction, a heat exchanger for exchanging sensible heat of the outside air and the inside air is arranged between the outside air path and the inside air path such that a suction port provided at a longitudinal air-path side of the heat exchanger is aligned with a blowout port of the fan, and a control unit for controlling the operation of the fans is included. While the depth of a conventional cooler for heater-containing box has been determined by air flow, that is, a fan diameter, the aforementioned structure have an effect of achieving the device structure having a constant depth regardless of air flow, that is, the fan diameter.
- In the cooler for heater-containing box of the present invention, a plurality of cooling devices for box containing heating element may be installed. Even when one of inside air fans or outside air fans is broken, the cooling devices for box containing heating element other than the cooler for heater-containing box having such fan work. Therefore, the cooler for heater-containing box has an effect of preventing the loss of cooling function.
- Moreover, in the cooler for heater-containing box of the present invention, the blowout port of the heat exchanger may be aligned with the blowout port arranged in the box of the cooler for heater-containing box. Since there is no need to provide any space between the blowout port of the heat exchanger and the blowout port arranged in the box of the cooler for heater-containing box, the cooler for heater-containing box has an effect of having the arrangement that the depth of the cooler for heater-containing box is equal to the depth of the heat exchanger.
- Moreover, in the cooler for heater-containing box of the present invention, an outside-air-via-hole may be provided between the outside air fans of each cooler for heater-containing box where an outside-air-temperature-detector is arranged, and an inside-air-via-hole may be provided between the inside air fans of each cooler for heater-containing box where an inside-air-temperature-detector is arranged. The cooler for heater-containing box has effects of enabling the temperature detection of the adjacent two air paths to be shared with one temperature detector, making the arrangement simple, facilitating the manufacturing, and enabling the temperature detection even when one fan is broken.
- Moreover, in the cooler for heater-containing box of the present invention, a heat insulating member may be arranged in the box of the cooler for heater-containing box, the heat insulating member forming a guide shape which determines the position of the heat exchanger. The cooler for heater-containing box has effects of enabling the heat exchanger to be easily and reliably installed to fit the guide shape, and preventing the influence of the outside air temperature to the heat exchanger by the heat insulating material.
- Moreover, in the cooler for heater-containing box of the present invention, a groove for wirings may be provided with the heat insulating material. By fitting the wirings into the groove at the manufacturing, the cooler for heater-containing box has an effect of ensuring the wirings which are connected from the fans to the control unit to be fixed.
- Moreover, in the cooler for heater-containing box of the present invention, an operating window may be provided at a plane with which the heat exchanger of the heat insulating material is in contact. By blocking the operating window in the assembly of the heat exchanger, the dust-proof and water-proof of the connecting portion of the connector can be achieved and the connecting operation of the wirings to the connector can be easily achieved. Therefore, the cooler for heater-containing box has effects of making the arrangement simple and facilitating the manufacturing and the maintenance.
- Moreover, in the cooler for heater-containing box of the present invention, a peaked reinforcing member may be provided at the outside air blowout port of the cooler for heater-containing box. The cooler for heater-containing box has effects of preventing the invasion of water into the outside air blowout port and enabling the opening of the outside air blowout port to be reinforced and make it thinner.
- Moreover, in the cooler for heater-containing box of the present invention, a fan and an orifice for rectification may be fixed to the same fan fixing plate. By fixing them to the single member, a rotating shaft of a turbo fan and the center of the orifice are easily aligned and the orifice and the fan can be easily aligned with each other at the assembling, as compared with the installation using a plurality of members. Therefore, the cooler for heater-containing box has effects of making the arrangement simple and facilitating the manufacturing.
- Moreover, in the cooler for heater-containing box of the present invention, the fan fixing plate can be shaped to be top-bottom and left-right symmetric, and the inside air fan and the outside air fan can be formed with the same structure using the common member. In addition, the mounting portion is U-shaped so that the mounting portion is hooked to a fastening screw or the like, and thereby the cooler for heater-containing box has an effect of preventing the drop of the fans.
- Moreover, in the cooler for heater-containing box of the present invention, a reinforcing member, which also serves as a fastening member, may be provided at the corner of the cooler for heater-containing box. The reinforcing member enables a main body to be suspended using the top surface and side surfaces thereof. Therefore, the cooler for heater-containing box has effects of making the arrangement simple and facilitating the manufacturing.
- Moreover, in the cooler for heater-containing box of the present invention, a drop prevention member such as a protrusion is provided with a removable panel which forms a plane of the box of the cooler for heater-containing box. Therefore, the cooler for heater-containing box has effects of preventing the drop of the panel when the panel is removed, making the arrangement simple, and facilitating the manufacturing and the maintenance.
- Moreover, in the cooler for heater-containing box of the present invention, an exhaust heat hole may be provided at an inside wall surface of the control unit. By generating the air flow exhausted from the exhaust heat hole, the cooler for heater-containing box has effects of cooling down the control unit, reducing the increase in temperature, and becoming thinner.
- Moreover, in the cooler for heater-containing box of the present invention, a fixing member which also serves as a handle may be provided at a printed substrate built in the control unit. Therefore, the cooler for heater-containing box has effects of reducing the number of parts and enhancing the productivity and the maintenance.
- Moreover, in the cooler for heater-containing box of the present invention, a fixing member which also serves as a radiating member may be provided at the printed substrate built in the control unit. Therefore, the cooler for heater-containing box has effects of reducing the radiating space of the substrate and becoming thinner.
- Moreover, in the cooler for heater-containing box of the present invention, a mortar-like drain pan structure may be provided at the bottom surface of the box of the cooler for heater-containing box so that water is pumped up along the inclined surface of the mortar of the drain pan by air blasting of the outside air fan. Therefore, the cooler for heater-containing box has effects of exhausting the water via an exhaust outlet provided above the bottom surface, making the arrangement simple, and facilitating the construction.
- Moreover, in the cooler for heater-containing box of the present invention, a groove shape for leading the exhausting water to the exhaust outlet may be provided with the drain pan. Therefore, the cooler for heater-containing box has effects of exhausting water via the exhaust outlet provided at the position other than downwind, making the arrangement simple, and facilitating the construction.
- Hereinafter, embodiments of the present invention will be described with reference to the drawings.
- Hereinafter,
Embodiment 1 of the present invention will be described with reference toFIGS. 1 to 3 . -
FIG. 1 is an installation diagram of a cooler for heater-containing box inEmbodiment 1 of the present invention.FIG. 2 is an outline view and a structural diagram at the inside of the cooler for heater-containing box inEmbodiment 1 of the present invention.FIG. 3 is an outline view at the outside of the cooler for heater-containing box inEmbodiment 1 of the present invention, and shows the state where a plurality of cooling devices for box containing heating element 100 are installed in the horizontal direction (each figure shows that two cooling devices for box containing heating element are installed). - Cooler for heater-containing
box 210 is attached to door 260 of box containingheating element 200, and is structured by “door integral-type” mounting. - Note that cooler for heater-containing
box 210 is attached to door 260 of box for containingheating element 200, but cooler for heater-containingbox 210 may be externally or internally attached todoor 260 or a wall surface of box for containingheating element 200. - Hereinafter, the internal structure of cooler for heater-containing
box 210 will be described. - The air within box for containing heating element 200 (hereinafter referred to as internal air) is took into
turbo fan 215 ofinside air fan 203 via insideair suction port 202, and then passes throughheat exchanger 204 and returns back into box for containingheating element 200 via insideair blowout port 205 so as to form circulating insideair path 206. - On the other hand, it is took into
turbo fan 215 ofoutside air fan 208 via outsideair suction port 207, and then passes throughheat exchanger 204 and is exhausted to the outside air via outsideair blowout port 209 so as to formoutside air path 214. -
Heat exchanger 204 has suction ports on the top surface and the bottom surface in the longitudinal direction, as the suction ports of the longitudinal path, and has blowout ports, which serve as insideair blowout ports 216 and the outside air blowout ports, on parts of the side surfaces in the short-side direction, respectively, so as to form countercurrent air path in the longitudinal direction of the inside of the heat exchanger.Heat exchanger 204 has a substantially rectangular parallelepiped shape having a substantially L-shaped air path communicating the suction ports and the blowout ports, exchanges the sensible heat of the outside air and the inside air, and is arranged betweenoutside air path 214 and insideair path 206. - In addition,
heat exchanger 204 is arranged such that the short-side direction is consistent with the depth direction of cooler for heater-containingbox 210. - Inside
air fan 203 andoutside air fan 208 are arranged such that the rotating shaft ofturbo fan 215 is in parallel with the air intake direction and each blowout direction ofinside air fan 203 andoutside air fan 208 is aligned with the suction ports of the longitudinal air path, andcontrol unit 213 is provided for controlling the operations ofinside air fan 203 andoutside air fan 208. - Inside
air blowout port 205 and outsideair blowout port 209 provided at the planes ofbox 201 are arranged such that they are in directly surface contact with and integrated with insideair blowout port 216 and outside air blowout port (not shown) ofheat exchanger 204. - With the above structure, cooler for heater-containing
box 210 takes the outside air when the internal air temperature is higher than the outside air temperature, exchanges heat to warmer air within box containingheating element 200 byheat exchanger 204. The warmed outside air is exhausted and the cooled air is supplied into box containingheating element 200, and then the temperature within box containingheating element 200 is reduced. - Moreover, since the air-blasting resistance is high due to
heat exchanger 204 or the like in the air path, a centrifugal fan is used to blow the air to the cooling device. The depth of cooler for heater-containingbox 210 is determined by the air flow, that is, the diameter ofturbo fan 215. Therefore, when the diameter ofturbo fan 215 is larger, the centrifugal fan becomes thinner regardless of the increase and decrease in air flow since the depth of the turbo fan is consistent. - Furthermore, even when inside
air fan 203 oroutside air fan 208 of one cooler for heater-containing box A is broken, other cooling devices for box containing heating element A hold the cooling function. All the cooling devices for box containing heating element A are less likely to be simultaneously broken, and the cooling function will not be completely failed. - Furthermore, inside
air blowout port 205 and outsideair blowout port 209 are in directly surface contact with the inside air blowout port and the outside air blowout port ofheat exchanger 204. Therefore, there is no need to provide any space therebetween, and the depth of cooler for heater-containing box A can be thinner. - Furthermore,
heat exchanger 204 has the suction ports on the top surface and the bottom surface in the longitudinal direction, as the suction ports of the longitudinal path, and has blowout ports, which serve as insideair blowout port 216 and the outside air blowout port, on parts of the side surfaces in the short-side direction, respectively. Inheat exchanger 204, the substantially rectangular parallelepiped shape having a substantially L-shaped air path communicating the suction ports and the blowout ports is arranged such that the short-side direction thereof is aligned with the depth direction of cooler for heater-containing box A. Therefore, the depth of cooler for heater-containing box A can be thinner and the heat exchange can be effectively achieved at the air path portion of the counter current portion in the longitudinal direction. - Note that the description has been given using
turbo fan 215 forinside air fan 203 andoutside air fan 208, but any type of fan may be used. - Next,
Embodiment 2 of the present invention will be described with reference toFIG. 4 . -
FIG. 4 is a structural diagram relating to a temperature detector of the cooler for heater-containing box inEmbodiment 2 of the present invention, and shows the state where a plurality of cooling devices for box containing heating element are installed. InFIG. 4 , the same reference numerals are applied to the same structural elements as inFIGS. 2 and 3 and the descriptions thereof are omitted. - Inside-air-temperature-
detector 211 for detecting the temperature of the inside air is arranged in inside-air-via-hole 218 which is provided betweeninside air fans 203 of the cooling devices for box containing heating element A. Outside-air-temperature-detector 212 for detecting the temperature of the outside air is arranged in outside-air-via-hole 217 which is provided betweenoutside air fans 208 of the cooling devices for box containing heating element A. - With the above structure, each temperature detection of the adjacent two air paths can be shared with one outside-air-temperature-
detector 212 and inside-air-temperature-detector 211, and the arrangement structure becomes simple and the manufacturing becomes easier. Moreover, even when one ofinside air fan 203 oroutside air fan 208 is broken, the temperature can be detected since the other fan operates to blow the air. - Next,
Embodiment 3 of the present invention will be described with reference toFIG. 5 . -
FIG. 5 shows a structural diagram relating to a heat insulating material of the cooler for heater-containing box inEmbodiment 3 of the present invention. InFIG. 5 , the same reference numerals are applied to the same structural elements as inFIG. 2 and the descriptions thereof are omitted. - Cooler for heater-containing
box 210 is provided withheat insulating material 219 made of foamed polystyrene or the like, which hasguide 220 having a convex wall at an edge portion against which, for example, the lower end ofheat exchanger 204 is abutted so as to positionheat exchanger 204. - With the above structure,
heat exchanger 204 can be mounted and positioned such that the lower end ofheat exchanger 204 is abutted againstguide 220, and thus the attachment becomes easier, the arrangement becomes simple, and the manufacturing and the maintenance become easier. In addition, the effect of heat insulating allows the cooling performance to be prevented from being affected by the temperature of the outside air and the inside air. - Next,
Embodiment 4 of the present invention will be described with reference toFIG. 6 . -
FIG. 6 shows a structural diagram relating to a heat insulating material of the cooler for heater-containing box inEmbodiment 4 of the present invention. InFIG. 6 , the same reference numerals are applied to the same structural elements as inFIG. 5 and the descriptions thereof are omitted. -
Groove 221 is provided at the rear side of the plane abutting againstheat exchanger 204 ofheat insulating material 219, and operatingwindow 223 is provided ingroove 221. - With the above structure, when
intermediate wiring 222, which connects outsideair fan 208 andcontrol unit 213, is fitted intogroove 221 and heat insulatingmaterial 219 is mounted to the box, the wiring is simultaneously achieved. In addition, the wiring is reliably fixed, the arrangement becomes simple, and the manufacturing becomes easier. - Moreover, the connecting portion between
outside air fan 208 andconnector 224 ofintermediate wiring 222 can be housed withinheat insulating member 219, and the connecting portion ofconnector 224 can be easily removed so that the arrangement becomes simple and the manufacturing and the maintenance become easier. Moreover, operatingwindow 223 is blocked by incorporating heat exchanger, and thus the dust-proof and the water-proof of the connecting portion ofconnector 224 can be achieved. - Next,
Embodiment 5 of the present invention will be described with reference toFIG. 3 . - In
FIG. 3 , peakedmember 244 is provided at a plane ofbox 201 of cooler for heater-containingbox 210, which is located closer to the outside air, and in outsideair blowout port 209. - With the above structure, even when outside
air blowout port 209 is provided inbox 201 of cooler for heater-containingbox 210, the attachment ofpeaked member 244 reinforcesbox 201 and achieves weather strip. - Next, Embodiment 6 of the present invention will be described with reference to
FIG. 7 . -
FIG. 7 shows a structural diagram of a fan of the cooler for heater-containing box in Embodiment 6 of the present invention. InFIG. 7 , the same reference numerals are applied to the same structural elements as inFIG. 2 and the descriptions thereof are omitted. - In
inside air fan 203 andoutside air fan 208, a motor (not shown) coupled toturbo fan 215 andorifice 225 for rectification are fixed to the samefan fixing plate 226. - Moreover,
fan fixing plate 226 may be in a top-bottom and left-right symmetric shape, and mountingportion 227 may be U-shaped. - With the above structure, the rotating shaft of
turbo fan 215 is likely to be aligned with the center oforifice 225. As a result, the defective assembly due to the accumulation of the tolerances of parts and the erection tolerances can be reduced, and the arrangement becomes simple and the manufacturing becomes easier. - In addition, as being in a top-bottom and left-right symmetric shape, the fan fixing plate can be reversely attached. Even when inside
air fan 203 andoutside air fan 208 have to be oppositely attached,fan fixing plate 226 can serve as a common member and thus insideair fan 203 andoutside air fan 208 can have the same structure. Moreover, since mountingportion 227 is U-shaped, the mounting portion is hooked to a fastening screw or the like at the mounting so as to achieve the prevention of the drop. - Next, Embodiment 7 of the present invention will be described with reference to
FIG. 8 . -
FIG. 8 shows a structural diagram of a reinforcing member of the cooler for heater-containing box in Embodiment 7 of the present invention. InFIG. 8 , the same reference numerals are applied to the same structural elements as inFIG. 2 and the descriptions thereof are omitted. - Reinforcing
member 229 with mountinghole 228, to which an eye bolt or the like can be attached, is provided at the corner ofbox 201 of cooler for heater-containingbox 210 and on the top surface and the side surfaces ofbox 201. - With the above structure, when the eye bolt or the like is mounted in mounting
hole 228, cooler for heater-containingbox 210 can be conveyed with a machine and can be easily moved. For example, the direction of cooler for heater-containing box A can be easily changed on the production line at the manufacturing and can be easily suspended at the packaging, thereby enhancing the productivity. - Note that
FIG. 8 shows mounting hole 228 provided at the top surface, but it may be provided at the side surfaces. - In addition,
FIG. 8 shows one mountinghole 228, but a plurality of mounting holes may be provided. - Next, Embodiment 8 of the present invention will be described with reference to
FIG. 2 . -
FIG. 2 is an explanatory diagram of a plane located closer to the inside air ofbox 201 of cooler for heater-containingbox 210.Removable panel 230 is provided withprotrusion 231, and slit 232 is provided at the location into whichprotrusion 231 is fitted at the attachment ofpanel 230 ofbox 201. - In addition,
exhaust heat hole 233 is provided at a location ofpanel 230 wherecontrol unit 213 is blocked. - The drop prevention member composing of
protrusion 231 and slit 232 prevents the drop ofpanel 230 after the fastening member such as a screw for fixingpanel 230 is removed. Therefore, the arrangement becomes simple, and the manufacturing and the maintenance become easier. - In addition, the exhaust heat via
exhaust heat hole 233 allowscontrol unit 213 to be cooled down. - Note that even when the inside wall surface of
control unit 213 has a wall-surface structure which is not removable, rather than the panel structure,exhaust heat hole 233 can be provided. - Next,
Embodiment 9 of the present invention will be described with reference toFIG. 9 . -
FIG. 9 shows an assembly diagram of a control unit of the cooler for heater-containing box inEmbodiment 9 of the present invention. InFIG. 9 , the same reference numerals are applied to the same structural elements as inFIG. 2 and the descriptions thereof are omitted. - Printed
substrate 234 is provided withhandle 235 having a hole via which a screw or the like is inserted, andcontrol unit 213 is provided withrail 236 for guiding the insertion of printedsubstrate 234. Printedsubstrate 234 is fixed to controlunit 213 withhandle 235. - With the above structure, handle 235 functions to fix printed
substrate 234 and handle 235 also serves as a fixing member. The structure eliminates the necessity of additional fixing member and allows the number of parts to be decreased, and thus the arrangement becomes simple and the manufacturing and the maintenance become easier. - Next,
Embodiment 10 of the present invention will be described with reference toFIG. 10 . -
FIG. 10 shows a structural diagram of the control unit of the cooler for heater-containing box inEmbodiment 10 of the present invention. InFIG. 10 , the same reference numerals are applied to the same structural elements as inFIG. 2 and the descriptions thereof are omitted. - Printed
substrate 238 is provided with radiatingplate 237, which is attached to printedsubstrate 238 by insertingradiating plate 237 into a cut-out provided at the outline ofcontrol unit 213. - Thereby, radiating
plate 237 serves as a part of the outline ofcontrol unit 213 and is in contact withinside air path 206. In other words, printedsubstrate 238 serves as both a fixing member and a radiating member. - With the above structure, there is no need to provide any space for radiation between radiating
plate 237 and the outline ofcontrol unit 213 when printedsubstrate 238 is placed withincontrol unit 213, and thereby controlunit 213 can be downsized. - Next,
Embodiment 11 of the present invention will be described with reference toFIG. 11 . -
FIG. 11 shows a structural diagram relating to a drain pan of the cooler for heater-containing box inEmbodiment 11 of the present invention. InFIG. 11 , the same reference numerals are applied to the same structural elements as inFIG. 3 and the descriptions thereof are omitted. - The bottom of
box 201 of cooler for heater-containingbox 210 is provided withexhaust outlet 239 at a location higher than the bottom of the outside-air side surface ofbox 201. The bottom of box is provided with bowl-like drain pan 240 having an inclined surface whose lowest surface is located belowoutside air fan 208 and which extends towardexhaust outlet 239. - With the above structure, the rain water invading from the outside and collected in
drain pan 240 is pumped up along the mortar-like inclined surface ofdrain pan 240 by blowing the air withoutside air fan 208 without using any additional member such as a pump, so that the water can be exhausted viaexhaust outlet 239 which is located higher than the bottom ofdrain pan 240. As a result, the installation position has more degree of freedom, and the construction becomes easier. - Next,
Embodiment 12 of the present invention will be described with reference toFIG. 12 . -
FIG. 12 shows a structural diagram relating to a drain pan of the cooler for heater-containing box inEmbodiment 12 of the present invention. InFIG. 12 , the same reference numerals are applied to the same structural elements as inFIGS. 3 and 11 and the descriptions thereof are omitted. -
Drain pan 240 is provided withdrain pan groove 241 to extend towardexhaust outlet 239 around the lower part ofoutside air fan 208. - With the structure, the rain water invading from the outside and collected in
drain pan 240 can be exhausted viaexhaust outlet 239, which is located at the position other than downwind, without using any additional member such as a pump. As a result, the installation position has more degree of freedom, and the construction becomes easier. - The present invention can provide the cooler for heater-containing box having an effect of allowing the depth of the cooler for heater-containing box to be thinner.
- Moreover, there can be provided the cooler for heater-containing box having an effect that even when the fan is broken, the fan of another cooler for heater-containing box operates so as to prevent the loss of cooling function.
- Moreover, there can be provided the cooler for heater-containing box having effects that the temperature detection of the adjacent two air paths can be shared with one temperature detector, the arrangement is simple and the manufacturing is easy to be made, and the temperature detection can be achieved even when the fan is broken.
- Moreover, there can be provided the cooler for heater-containing box having effects that the heat exchanger can be easily and reliably installed, the arrangement is simple, and the manufacturing and the maintenance are easy to be made.
- Moreover, there can be provided the cooler for heater-containing box having effects that the wiring connected from the fan to the control unit is reliably fixed, the arrangement is simple, and the manufacturing is easy to be made.
- Moreover, there can be provided the cooler for heater-containing box having effects that the connector connecting operation can be easily performed, the arrangement is simple, and the manufacturing and the maintenance are easy to be made.
- Moreover, there can be provided the cooler for heater-containing box having effects that water invading into the outside air blowout port is prevented and the opening of the outside air blowout port can be reinforced.
- Moreover, there can be provided the cooler for heater-containing box having effects that the orifice and the fan can be easily aligned with each other at the assembly, the arrangement is simple, and the manufacturing is easy to be made.
- Moreover, there can be provided the cooler for heater-containing box having effects that the inside air fan and the outside air fan can have the same structure using the common member, the arrangement is simple, the manufacturing and the maintenance are easy to be made.
- Moreover, there can be provided the cooler for heater-containing box having effects that the main body can be suspended, the arrangement is simple, and the manufacturing is easy to be made.
- Moreover, there can be provided the cooler for heater-containing box having effects that the panel is prevented from being dropped when the panel is removed, the arrangement is simple, and the manufacturing and the maintenance are easy to be made.
- Moreover, there can be provided the cooler for heater-containing box having effects that the rise in temperature within the control unit can be decreased and the cooling device is thinner.
- Moreover, there can be provided the cooler for heater-containing box having effects that the number of parts can be decreased, the arrangement is simple, the manufacturing and the maintenance are easy to be made.
- Moreover, there can be provided the cooler for heater-containing box having effects that the radiation space of the printed substrate can be decreased and the cooling device is thinner.
- Moreover, there can be provided the cooler for heater-containing box having effects that the water is pumped up along the mortar-like inclined surface of the drain pan by blasting the air with the outside air fan so as to exhaust the water via the exhaust outlet which is located above the bottom, the arrangement is simple, and the installation position has more degree of freedom.
- Moreover, there can be provided the cooler for heater-containing box having effects that the water can be also exhausted via the exhaust outlet which is provided in the direction different from the downwind of the outside air fan, the arrangement is simple, and the installation position has more degree of freedom.
- Next, the heat exchanger of the present invention which can be employed in the cooler for heater-containing box of the present invention will be described in detail in the embodiments.
- The heat exchanger of the present invention is made such that an air-path-retaining-member, which is provided at a portion where the fluid flowing at the first air path and the second air path forms a counter current in stacking the first heat transfer plate and the second heat transfer plate, has a curved shape.
- With this structure, the air-path height can be maintained and the increase in air-flow resistance can be suppressed, and there can be provided the heat exchanger in which the increase in air-flow resistance can be suppressed without decreasing the air-path width. In addition, since the air-path height can be maintained, the thinner heat exchanger can be obtained by narrowing the air-path width and adjusting the air-flow resistance.
- In another structure, the air-path-retaining-member, which forms the portion where the fluid flowing at the first air path and the second air path forms the counter current, is arranged at irregular intervals.
- With this structure, there can be provided the heat exchanger in which the temperature distribution of the heat-exchanged air at the outlet portion of the heat exchanger can be improved.
- In another structure, the air-path-retaining-members are arranged at irregular intervals such that among the plurality of substantially L-shaped air paths, the air path having a short air-path length at the side of the first shielding member, which is far from the blowout port of the fan, has a wide air-path width, and the air path having a long air-path length at the side of the second shielding member, which is close to the blowout port of the fan, has a narrow air-path width.
- With this structure, there can be provided the heat exchanger in which the air flow of the air path having a short air-flow length can be reduced and that of the air path having a long air-flow length can be increased, and the temperature distribution of the heat-exchanged air in the outlet of the heat exchanger can be improved.
- In another structure, the air-path-retaining-members are arranged at irregular intervals so as to reduce an air flow difference of the plurality of substantially L-shaped air paths in accordance with the shape of the air paths provided in front of and at the back of a carrying member blowing air to the heat exchanger, or the heat exchanger.
- With this structure, there can be provided the heat exchanger in which the difference of the air flow in each air path can be reduced, and the temperature distribution of the heat-exchanged air in the outlet of the heat exchanger can be improved.
- In another structure, the air-path-retaining-members are arranged at irregular intervals such that among the plurality of substantially L-shaped air paths, the air path having the central portion, which is close to the blowout port of the fan, has a narrow air-path width, and the air path having a short air-path length at the side of the first shielding member and the air path having a long air-path length at the side of the second shielding member have wide air-path widths.
- With this structure, there can be provided the heat exchanger in which the difference of the air flow in each air path can be reduced, and the temperature distribution of the heat-exchanged air in the outlet of the heat exchanger can be improved.
- In another structure, the air-path-retaining-members are arranged at irregular intervals such that among the plurality of substantially L-shaped air paths, the air path at the central portion has a narrow air-path width, and the air path having a short air-path length at the side of the first shielding member and the air path having a long air-path length at the side of the second shielding member have wide air-path widths.
- With this structure, there can be provided the heat exchanger in which the difference of the air flow in each air path can be reduced, and the temperature distribution of the heat-exchanged air in the outlet of the heat exchanger can be improved.
- In another structure, a side-surface-retaining-member is arranged at the locations serving as both ends of the first shielding member and corners in the longitudinal direction of the second shielding member, which are formed at the second heat transfer plate, and as the edge portion of the opening of the first heat transfer plate adjacent thereto. At the both ends of the first shielding member and at the both ends of the second shielding member, which is located opposite to the first shielding member, the upper surface of the first shielding member of the first heat transfer plate is abutted against the lower surface of the second shielding member of the second heat transfer plate, the upper surface of the second shielding member of the first heat transfer plate is abutted against the lower surface of the first shielding member of the second heat transfer plate, and the upper surface of the side-surface-retaining-member is abutted against the lower surfaces of the first shielding member and the second shielding member of the first heat transfer plate.
- With this structure, there can be provided the heat exchanger in which the deformation due to heat contraction can be prevented, the opening height is maintained at the peripheral side, and the increase in air-flow resistance can be suppressed. In addition, since the opening height can be maintained at the peripheral side, the thinner heat exchanger can be obtained by narrowing the air-path width and adjusting the air-flow resistance while maintaining the air-path height.
- In another structure, at least one peripheral air flow retaining member is provided at the portions which do not face the side surfaces of the first shielding member and the second shielding member formed at the first heat transfer plate, and the peripheral-air-path-retaining-member is abutted against the first shielding member and the second shielding member formed at the second heat transfer plate located therebelow.
- With this structure, there can be provided the heat exchanger in which the air-path height can be maintained at the peripheral side and the increase in air-flow resistance can be suppressed. In addition, since the air-path height can be maintained, the thinner heat exchanger can be obtained by narrowing the air-path width and adjusting the air-flow resistance.
- In another structure, a sealing member formed at the peripheral edge portion is folded back to have a length longer than the air-path height with respect to the heat transfer surface, and the sealing member provided below the inlet portion and the outlet portion is provided with opening B.
- With this structure, there can be provided the heat exchanger in which the number of steps for welding can be reduced and the productivity can be enhanced.
- In another structure, opening A and opening B are formed such that the height of the opening between the heat transfer surface and the edge portion of the opening is greater than the air-path height in the inlet and the outlet.
- With this structure, there can be provided the heat exchanger in which the decrease in the height of the opening due to burr can be prevented, and the increase in air-flow resistance can be suppressed. In addition, since the decrease in the height of the opening can be prevented, the thinner heat exchanger can be obtained by maintaining the air-path height, narrowing the air-path width and adjusting the air-flow resistance.
- Hereinafter, the embodiments of the present invention will be described with reference to the drawings.
-
FIG. 13 is a schematic exploded perspective view of a heat exchanger employed in this embodiment.FIG. 14 is a schematic perspective view of the heat exchanger at the stacking of heat transfer plates.FIG. 15 is a schematic perspective view of the heat exchanger at the stacking of heat transfer plates from the stacking direction.FIG. 16 is a schematic cross sectional view in the stacking state of shielding rib A and shielding rib B near an opening.FIG. 17 is a schematic cross sectional view of an inlet prior to heat welding.FIG. 18 is a schematic cross sectional view of the inlet after the heat welding. - In
FIGS. 13 and 14 , in the heat exchanger constituted by alternately stacking firstheat transfer plates 101 and secondheat transfer plates 102,first air path 1 andsecond air path 2 are provided above and below each heat transfer plate. The fluid flowing onfirst air path 1 andsecond air path 2 exchanges heat via each heat transfer plate. At the outlet and inlet portions of each air path, the air flowing into in the longitudinal direction and the air flowing out in the short-side direction flow perpendicularly to each other. At the central portion, the airs form a counter current, which flows in the counter direction to each other in the longitudinal direction. The heat transfer plates are integrated by heat welding on the peripheral side surfaces. - In practice, multiple first
heat transfer plates 101 and secondheat transfer plates 102 are alternately stacked, but four heat transfer plates are shown for simplification. - First
heat transfer plate 101 and secondheat transfer plate 102 has a rectangular plane shape, and is formed by vacuum molding high-impact polystyrene sheet having a thickness of, for example, 0.2 mm. - First
heat transfer plate 101 is formed to be in a hollow convex shape and to have, for example, a convex height of 2.6 mm and a width of 2 mm with respect to the surface ofheat transfer surface 105. Firstheat transfer plate 101 has nine curvedair path ribs 3 as substantially L-shaped air-path-retaining-members having a curved counter-current portion to be arranged in substantially parallel and at substantially regular interval. Curvedair path ribs 3 form substantially L-shapedfirst air path 1 andheat transfer surface 105. -
Inlets 4 andoutlets 5 offirst air path 1 are provided with airflow end face 106 as a sealing member in which the edge of firstheat transfer plate 101 is bent toward the direction opposite to the protrusion direction of curvedair path ribs 3, for example, to the position of 2.4 mm with respect to the surface ofheat transfer surface 105.Inlets 4 andoutlets 5 are provided with air flowend face cover 111 a as a sealing member in which both ends of air path endface 106, e.g., the portion located 10 mm from the ends, are bent to the position of 5.2 mm with respect to the surface which is longer than air path endface 106, e.g., the surface ofheat transfer surface 105. Air path opening 6 a is formed of air path endface 106 and air path endface cover 111 a. - Note that an alphabetic lower letter at the end of reference numeral is applied for distinguishing from the similar reference numeral because the reference numerals denote the portions having the same function but different arrangements. Hereinafter, the similar description will be applied.
- The both ends of curved
air path rib 3 are provided with a plurality of, for example, 18first protrusions 107 which are in a hollow convex shape in the same direction as the protrusion direction of curvedair path ribs 3 and have the height greater than the height of curvedair path ribs 3 such that the height is, for example, 5.2 mm with respect to heattransfer surface 105. - At the peripheral edge portion other than the inlet and outlet of
first air path 1 of firstheat transfer plate 101 and at the linear portion sandwiched betweeninlet 4 andoutlet 5 offirst air path 1, peripheral rib A7 a is provided as the first shielding member which is in a hollow convex shape in the same direction of the protrusion direction of curvedair path ribs 3 and is formed to have the equal height tofirst protrusion 107 such that the width is, for example, 10 mm. The upper surface of peripheral rib A7 a is in parallel withheat transfer surface 105, and the outer side surfaces thereof are bent to the same position as air path endface cover 111 a. Note that peripheral rib A7 corresponding to the first shielding member is a generic name of peripheral ribs A7 a and 7 b. - At the peripheral edge portion other than
inlet 4,outlet 5, and peripheral rib A7 a offirst air path 1 of firstheat transfer plate 101, peripheral rib B8 is formed as the L-shaped second shielding member to have the same width as peripheral rib A7 a. Peripheral rib B8 a of peripheral rib B8, which is located opposite to peripheral rib A7 a, is formed to have the equal height to peripheral rib A7 a, and the other peripheral ribs B8 b, 8 c are formed to have the equal height to curvedair path ribs 3. Note that peripheral rib B8 corresponding to the second shielding member is a generic name of peripheral ribs B8 a to 8 f. - The peripheral side surfaces of peripheral rib B8 a are bent to the same position as air path end
face cover 111 a, and is provided withside surface cover 9 as a sealing member. The portion from the corners of the peripheral side surfaces of peripheral ribs B8 b, 8 c to the position having the same dimension as peripheral rib A7 is bent to the same position as air path endface cover 111 a, and is provided with air path endface cover 111 b. The other portions are bent to the position of, for example, 2.2 mm from the upper surface of peripheral ribs B8 b, 8 c, and are provided with air path opening 6 b. - The corners of peripheral ribs B8 b, 8 c which are adjacent to
inlet 4 andoutlet 5 are provided withsecond protrusions 112 which are in a hollowconvex shape in the same direction as the protrusion direction of curvedair path ribs 3 and are formed to have the equal height tofirst protrusion 107. - At the side of each of peripheral rib A7 a and peripheral rib B8 a, which is located closer to the air path, four semicircular recessed
portions 10 serving as the peripheral-air-path-retaining-member are provided to be flush withheat transfer surface 105. - Second
heat transfer plate 102 has a similarity relation to firstheat transfer plate 101, and is formed such that the heights of peripheral rib A7 b and peripheral ribs B8 d, 8 e, 8 f of secondheat transfer plate 102 are equal to the height of curvedair path ribs 3. Second heat transfer plate is formed to have the same width as peripheral rib A7 a of the first heat transfer plate. - On each of peripheral rib A7 b and peripheral rib B8 d of second
heat transfer plate 102, four side-surface reinforcing portions 11 are provided to be adjacent to semicircular recessedportion 10 provided at firstheat transfer plate 101 at the stacking, the side-surface reinforcing portion 11 serving as a side-surface-retaining-member which is formed in the same direction as the protrusion direction of curvedair path ribs 3, for example at the height of 7.8 mm, with respect to heattransfer surface 105. Side-surface reinforcing portions 11 at both ends are aligned with the ends of peripheral rib A7 b and peripheral rib B8 d. - In the above structure, when first
heat transfer plates 101 and secondheat transfer plates 102 are alternately stacked, curvedair path ribs 3 are not aligned with curvedair path ribs 3 formed at the adjacent heat transfer plate in the stacking direction, as shown inFIG. 15 . Therefore, adjacent curvedair path ribs 3 are not fitted into one another, the upper surfaces of curvedair path ribs 3 are always abutted against the lower surface of the heat transfer plate provided thereabove, and thus the air-path height can be maintained. - This air-path height is designed in terms of the performance and the fabrication of the heat exchanger such as air-flow resistance.
- Moreover, as shown in
FIG. 16 , the upper surface of side-surface reinforcing portion 11 is abutted against the lower surface of peripheral rib A7 a of firstheat transfer plate 101, and the lower surface of semicircular recessedportion 10 is abutted against the upper surface of peripheral rib B8 d of secondheat transfer plate 102. Thereby, the decrease in the height of the opening and the decrease in the air-path height at the peripheral side due to the heat contraction at the heat welding can be suppressed. - Moreover, since the peripheral side surface of peripheral rib A7 a and the peripheral side surface of peripheral rib B8 d of the adjacent heat transfer plates can have a large welding area, the generation of non-welded portion due to the heat contraction can be prevented at the heat welding, and the productivity can be enhanced.
- Moreover, as shown in
FIG. 17 , air path opening 6 a and air path opening 6 b ofinlet 4 are formed such that opening height h2 from the heat transfer surface is higher than air-path height h1, for example h2=3 mm>h1=2.6 mm. Even whenburr 12 is left at the cutting portion of air path opening 6 a and air path opening 6 b at the cutting andburr 12 falls to block off the opening height ofinlet 4 at the heat welding as shown inFIG. 18 , air path opening 6 a and air path opening 6 b are designed such that the opening height can be maintained to be equal or more than the air-path height, that is, h3≧h1=2.6 mm. Thereby, the decrease in the opening height due toburr 12 can be suppressed. - In addition, since first
heat transfer plate 101 and secondheat transfer plate 102 can leaveburr 12 within an acceptable range, the productivity is also enhanced. - Note that in this
Embodiment 13, high-impact polystyrene sheet is used as the material of heat transfer plates and the heat transfer plates are integrally formed by vacuum molding. However, for the material, other thermoplastic resin films such as polystyrene, polypropylene, polyethylene, polyethylene terephthalate, or the like, thin metal plate such as aluminum, or paper material, microporous resin film, resin-laced paper material having heat transfer property and vapor permeability, or the like can be used. For the molding method, even when the heat transfer plates are integrally formed by other techniques such as air-pressure forming, air-pressure vacuum forming, press molding, or the like, the similar operation and effect can be obtained. - Moreover, the thickness of the sheet is set at 0.2 mm, but it is preferable to use the sheet of sheet material having a thickness in the range of 0.05 to 0.5 mm.
- The reason why is that when the thickness is 0.05 mm or less, the sheet material is likely to be damaged such as broken at the formation of roughness shapes and the handling of the molded heat transfer plate, and the molded heat transfer plate has no body and the handling thereof becomes worse. In addition, when the thickness is more than 0.5 mm, the heat transfer property is reduced.
- The thinner the sheet thickness is, the heat transfer property increases, and the formability is likely to be decreased. In contrast, the thicker the sheet thickness is, the heat transfer property is likely to be decreased.
- Therefore, in order to satisfy the formability and the heat transfer property, it is preferable to use the sheet of sheet material having a thickness in the range of 0.05 to 0.5 mm, and more preferably in the range of 0.15 to 0.25 mm.
- Moreover, curved
air path rib 3 is shaped to have one curve, but even when it is shaped to have a plurality of curves as long as curvedair path ribs 3 of the adjacent heat transfer plates are not fitted into one another at the stacking, the similar operation and effect can be obtained. - Moreover, semicircular recessed
portion 10 is employed as the peripheral-air-path-retaining-member, but other shapes can achieve the similar operation and effect as long as it is abutted against the upper surface of peripheral rib B8 of secondheat transfer plate 102 located below at the stacking. - Moreover, the dimension and the number of each part are exemplary, and are not particularly limited to the values. Even when each part is appropriately designed in terms of the performance and the fabrication of the heat exchanger, such as air-flow resistance and heat exchange rate, the similar operation and effect can be obtained.
- The heat exchanger described in the embodiment can be downsized in the short-side direction by adjusting the air-path width. The depth of the cooler for heater-containing box of the present invention can be further thinner by being mounted on the cooler for heater-containing box described in
Embodiments 1 to 12 withinlet 4 aligning with the suction port of the longitudinal air path andoutlet 5 aligning with insideair blowout port 216 and the blowout port serving as the outside air blowout port at a portion of the side surface in the short-side direction. -
FIG. 19 is a plan view of a first heat transfer plate. Note that the same portions as inEmbodiment 13 are denoted by the same reference numerals and exhibit the same operation and effect, and the descriptions thereof are omitted. - As shown in
FIG. 19 , in substantially L-shapedfirst air paths 1 a to 1 j which are formed at firstheat transfer plate 101,first air path 1 a provided closer to peripheral rib A7 a has the shortest air-path length andfirst air path 1 j provided closer to peripheral rib B8 has the longest air-path length. - The first air paths are arranged such that
first air path 1 a, which has the shortest air-path length, has a narrow air-path width andfirst air path 1 j has a wide width, and the width of each air path is designed to satisfy the relationship of the width offirst air path 1 a<the width offirst air path 1 b<the width offirst air path 1 c<the width offirst air path 1 d<the width offirst air path 1 e<the width offirst air path 1 f<the width offirst air path 1 g<the width offirst air path 1 h<the width offirst air path 1 i<the width offirst air path 1 j. The width dimension of each air path is appropriately designed depending on the dimension of the heat transfer plate, the air flow, and the fabricating property. - Second
heat transfer plate 102 is also designed in the same manner, but only firstheat transfer plate 101 is shown for simplification. - In the above structure, the fluid flowing from the direction indicated by arrow A in the figure flows into each
first air path 1 a to 1 j, conducts heat exchange, and flows out viaoutlet 5. Since the air path having the short air-path length has a narrow width and the air path having the long air-path length has a wide width, the difference of the air flow flowing on each air path is decreased. Therefore, as compared with the equal air-path width, the temperature difference of each air path at the outlet can be decreased. In this manner, since the difference of the air flow flowing on each air path is decreased by arranging the air-path-retaining-members at irregular intervals, the temperature difference of each air path at the outlet can be decreased. Moreover, the efficiency of heat exchange of the heat exchanger can be improved and the heat exchanger can be downsized. - Moreover, even when curved
air path ribs 3 atinlet 4 a offirst air path 1 a and at the inlet portion of second air path 2 (not shown) are located at the same line, curvedair path ribs 3 on the adjacent heat transfer plates at the counter current portion are not fitted into one another. Therefore, each air-path width can be designed as appropriate. - Note that, in the
present Embodiment 14, each air path has different width dimensions, but some of air-path widths may be equal, e.g., the width offirst air path 1 d=the width offirst air path 1 e. - The depth of the cooler for heater-containing box of the present invention can be further thinner by mounting the heat exchanger described in the present embodiment on the cooler for heater-containing box described in
Embodiments 1 to 12. - The matters described above are useful for the case where the fluid (air) flowing into the heat exchanger has uniform wind speed and static pressure, and no structure preventing the blowing is provided near the outlet of the heat exchanger. However, the air-path shape allowing such ideal air to flow in the heat exchanger is less likely to be provided in design of the devices. For example, since the size of the blowout port of the fan is inconsistent with the size of the inlet of the heat exchanger, the uniform inflow air cannot be achieved unless there is enough distance between the blowout port of the fan and the inlet of the heat exchanger. However, such air-path shape is less likely to be selected because the size of the device becomes larger. The present invention is useful under such circumstances, and will be described based on
FIGS. 20 and 21 . -
FIGS. 20 and 21 are schematic arrangement plans showing a positional relationship between firstheat transfer plate 101 andblowout port 14 offan 13. - Note that the same portions as in
Embodiments - In
FIG. 20 ,blowout port 14 offan 13 for carrying the air tofirst air paths 1 a to 1 j is arranged at the location closer to the air path having a long air-path length offirst air path 1. Curvedair path ribs 3 are arranged such that in the air-path width offirst air paths 1 a to 1 j,first air path 1 j, below whichoutlet 14 offan 13 is arranged and which has the longest air-path length, has a narrow width andfirst air path 1 a has a wide width. The width of each air path is designed to satisfy the relationship of the width offirst air path 1 a>the width offirst air path 1 b>the width offirst air path 1 c>the width offirst air path 1 d>the width offirst air path 1 e>the width offirst air path 1 f>the width of air path A1 g>the width offirst air path 1 h>the width offirst air path 1 i>the width offirst air path 1 j. The width dimension of each air path is appropriately designed depending on the dimension of the heat transfer plate, the air flow, and the fabricating property. - Second
heat transfer plate 102 is also designed in the same manner, but only firstheat transfer plate 101 is shown for simplification. - In the above structure, the fluid blowing out from
blowout port 14 offan 13 flows into eachfirst air path 1 a to 1 j, conducts heat exchange, and flows out viaoutlet 5. Since the air path, which is arranged directly aboveblowout port 14 and has a long air-path length, has a narrow width, and the air path, which is located far fromblowout port 14 and has a short air-path length, has a wide width, the difference of the air flow flowing in each air path located closer tofirst air path 1 j having much inflow air flow is decreased due to the relationship toblowout port 14 offan 13. Therefore, as compared with the case where air-path widths are equal, the temperature difference of each air path at the outlet can be decreased. In this manner, since the difference of the air flow flowing on each air path is decreased by arranging the air-path-retaining-members at irregular intervals, the temperature difference of each air path at the outlet can be decreased. Moreover, the efficiency of heat exchange of the heat exchanger can be improved and the heat exchanger can be downsized. - Moreover, even when curved
air path ribs 3 atinlet 4 a offirst air path 1 a and at the inlet portion of second air path 2 (not shown) are located at the same line, curvedair path ribs 3 on the adjacent heat transfer plates are not fitted into one another at the counter current portion. Therefore, each air-path width can be designed as appropriate. - Note that, in the present Embodiment 15, each air path has different width dimensions, but some of air-path widths may be equal, e.g., the width of
first air path 1 h=the width offirst air path 1 i, at the portion having the small difference of air flow among each air path due to the arrangement relationship between the fan and the heat exchanger, or the like. - Next, in
FIG. 21 ,blowout port 14 offan 13 for carrying the air tofirst air paths 1 a to 1 j are arranged at the central air-path portion offirst air path 1. Curvedair path ribs 3 are arranged such that in the air-path width offirst air paths 1 a to 1 j,first air path 1 e located at the central air-path portion below whichblowout port 14 offan 13 is arranged has a narrow width andfirst air paths first air path 1 a>the width offirst air path 1 b>the width offirst air path 1 c>the width offirst air path 1 d>the width offirst air path 1 e<the width offirst air path 1 f<the width offirst air path 1 g<the width offirst air path 1 h<the width offirst air path 1 i<the width offirst air path 1 j. The width dimension of each air path is appropriately designed depending on the dimension of the heat transfer plate, the air flow, and the fabricating property. - Second
heat transfer plate 102 is also designed in the same manner, but only firstheat transfer plate 101 is shown for simplification. - In the above structure, the fluid blowing out from
blowout port 14 offan 13 flows into eachfirst air path 1 a to 1 j, conducts heat exchange, and flows out viaoutlet 5. Since the air path at the central portion, which is arranged directly aboveoutlet 14, has a narrow air-path width, and the air paths at the both ends, which are located far fromblowout port 14, have wide air-path widths, the difference of the air flow flowing on each air path at the central portion having much inflow air flow is decreased due to the relationship toblowout port 14 offan 13. Therefore, as compared with the case where the air-path widths are equal, the temperature difference of each air path at the outlet can be decreased. - Moreover, even when curved
air path ribs 3 atinlet 4 a offirst air path 1 a and at the inlet portion of second air path 2 (not shown) are located at the same line, curvedair path ribs 3 on the adjacent heat transfer plates are not fitted into one another at the counter current portion. Therefore, each air-path width can be designed as appropriate. - Note that in the present Embodiment 15, each air path has different width dimensions, but some of air-path widths may be equal, e.g., the width of
first air path 1 e=the width offirst air path 1 f, at the portion having the small difference of air flow among each air path due to the arrangement relationship between the fan and the heat exchanger, or the like. - It should be noted that in the description on the embodiments of the heat exchanger,
first opening 6 a is referred to asinlet 4 orinlet 4 a when the air actually flows, and is referred to as suction port (with no reference numeral) when it is incorporated into the body of the cooler for heater-containing box. - Moreover,
second opening 6 b is referred to asoutlet 5 when the air flows, and is referred to as blowout port (with no reference numeral), insideair blowout port 216, and outside air blowout port (with no reference numeral) when it is incorporated into the body of the cooler for heater-containing box. - According to the present invention, the air-path-retaining-member at the portion, where the fluid flowing at the first air path and the second air path forms the counter current, is shaped to be curved, and thereby there can be provided the heat exchanger having effects of maintaining the air-path height and suppressing the increase in air-flow resistance.
- Moreover, the air-path height is maintained without decreasing the air-path width, and thereby there can be provided the heat exchanger having an effect of suppressing the increase in air-flow resistance.
- Moreover, the air-path-retaining-members, which form the portion where the fluid flowing at the first air path and the second air path forms the counter current, are arranged at irregular intervals, and thereby there can be provided the heat exchanger having an effect of improving the temperature distribution.
- Moreover, the air-path-retaining-members are arranged at irregular intervals such that among a plurality of substantially L-shaped air paths, the air path having a short air-path length at the side of the first shielding member has a narrow air-path width, and the air path having a long air-path length at the side of the second shielding member has a wide air-path width, and thereby there can be provided the heat exchanger having an effect of improving the temperature distribution.
- Moreover, the air-path-retaining-members are arranged at irregular intervals such that among a plurality of substantially L-shaped air paths, the air path having a short air-path length at the side of the first shielding member has a wide air-path width, and the air path having a long air-path length at the side of the second shielding member has a narrow air-path width, and thereby there can be provided the heat exchanger having an effect of improving the temperature distribution.
- Moreover, the air-path-retaining-members are arranged at irregular intervals such that among a plurality of substantially L-shaped air paths, the air path provided at the central portion has a narrow air-path width, and the air path having a short air-path length at the side of the first shielding member and the air path having a long air-path length at the side of the second shielding member have wide air-path widths, and thereby there can be provided the heat exchanger having an effect of improving the temperature distribution.
- Moreover, the side-surface-retaining-member is arranged at the locations serving as both ends of the first shielding member and corners in the longitudinal direction of the second shielding member, which are formed at the second heat transfer plate, and as the edge portion of the opening of the first heat transfer plate adjacent thereto. At the both ends of the first shielding member and at the both ends of the second shielding member, which is located opposite to the first shielding member, the upper surface of the first shielding member of the first heat transfer plate is abutted against the lower surface of the second shielding member of the second heat transfer plate, the upper surface of the second shielding member of the first heat transfer plate is abutted against the lower surface of the first shielding member of the second heat transfer plate, and the upper surface of the side-surface-retaining-member is abutted against the lower surfaces of the first shielding member and the second shielding member of the first heat transfer plate. Thereby, there can be provided the heat exchanger having effects of maintaining the air-path height at the peripheral side and suppressing the increase in air-flow resistance.
- Moreover, at least one peripheral-air-path-retaining-member is provided at the portions which do not face the side surfaces of the first shielding member and the second shielding member formed at the first heat transfer plate, and the peripheral-air-path-retaining-member is abutted against the first shielding member and the second shielding member formed at the second heat transfer plate which is located below the first heat transfer plate. Thereby, the air-path height at the peripheral side is maintained and the increase in air-flow resistance is suppressed.
- Moreover, the sealing member formed at the peripheral edge portion is folded back to the position having the length greater than the air-path height with respect to the heat transfer surface, and the second opening is formed at the sealing member provided below the inlet and the outlet. Thereby, there can be provided the heat exchanger having effects of decreasing the number of steps of the welding and improving the productivity.
- Moreover, the first opening and the second opening are formed such that the height of the opening between the heat transfer surface and the edge portion of the opening in the inlet and the outlet is greater than the air-path height. Accordingly, the heat exchanger having effects of preventing the decrease in the height of the opening due to burr and suppressing the increase in air-flow resistance can be provided.
- Therefore, the efficiency of heat exchange of the heat exchanger can be improved, and the downsized heat exchanger can be provided.
- The depth of the cooler for heater-containing box of the present invention can be further thinner by mounting the heat exchanger described in the present embodiment on the cooler for heater-containing box described in
Embodiments 1 to 12. - The present invention relates to a box-like structure which is installed outdoor, such as heat-exchange ventilator, base station for cellular, or simple radio station, the box having precision equipment which has a heating element such as an electronic component therein and requires cooling even in winter because of high heat generation, and whose performance and life are greatly affected by temperature. The present invention is applicable as a cooling device for the box.
Claims (27)
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
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JP2005271635 | 2005-09-20 | ||
JP2005-271635 | 2005-09-20 | ||
JP2005-284349 | 2005-09-29 | ||
JP2005284349A JP4848718B2 (en) | 2005-09-29 | 2005-09-29 | Heat exchanger |
PCT/JP2006/318564 WO2007034797A1 (en) | 2005-09-20 | 2006-09-20 | Cooler for heater-containing box |
Publications (1)
Publication Number | Publication Date |
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US20090139261A1 true US20090139261A1 (en) | 2009-06-04 |
Family
ID=37888840
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/997,389 Abandoned US20090139261A1 (en) | 2005-09-20 | 2006-09-20 | Cooler for heater-containing box |
Country Status (6)
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US (1) | US20090139261A1 (en) |
EP (1) | EP1901599B1 (en) |
KR (1) | KR100940967B1 (en) |
CN (1) | CN101233798B (en) |
DK (1) | DK1901599T3 (en) |
WO (1) | WO2007034797A1 (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050090909A1 (en) * | 2003-10-28 | 2005-04-28 | Chen-Meng Wu | Apparatus and method for switching connectivity of objects to be sensed |
US20100294458A1 (en) * | 2007-12-17 | 2010-11-25 | Panasonic Corporation | Heat exchange device and device for receiving heat generation body |
US20110315347A1 (en) * | 2009-12-16 | 2011-12-29 | Tonlier Energy Technology (Beijing) Co., Ltd. | Isolated Counter-Flow Air Heat Exchanging Device with Vertical Structure |
WO2012061307A1 (en) * | 2010-11-04 | 2012-05-10 | Hitachi Chemical Co., Ltd | Portable device for ex vivo stimulation of whole blood |
US8837140B2 (en) | 2009-09-04 | 2014-09-16 | Delphi Technologies, Inc. | Closed and internal cooling system for car radio |
US20150216078A1 (en) * | 2012-07-11 | 2015-07-30 | Abb Ab | Electrical Room Of An Industrial Equipment Such As A Container Crane, The Electrical Room Comprising A Cooling Device |
US20160050940A1 (en) * | 2014-08-19 | 2016-02-25 | Miguel A. Gomez Jimenez | Dough proofing apparatus and related methods |
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US11028443B2 (en) | 2015-08-31 | 2021-06-08 | Showa Denko Materials Co., Ltd. | Molecular methods for assessing urothelial disease |
US11035586B2 (en) | 2012-02-02 | 2021-06-15 | Carrier Corporation | Energy recovery ventilator |
CN114599924A (en) * | 2019-05-20 | 2022-06-07 | 百事可乐公司 | Defrost system for cold plate and method of defrosting cold plate |
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Publication number | Priority date | Publication date | Assignee | Title |
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Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3129753A (en) * | 1959-04-03 | 1964-04-21 | Trane Co | Heating and cooling apparatus |
US3877517A (en) * | 1973-07-23 | 1975-04-15 | Peerless Of America | Heat exchangers |
US4896716A (en) * | 1987-01-27 | 1990-01-30 | The Furukawa Electric Co., Ltd. | Heat pipe type heat-exchanger for the ventilation |
US4966004A (en) * | 1989-11-06 | 1990-10-30 | Amana Refrigeration, Inc. | Electronic control mounting apparatus for refrigerator |
US6039111A (en) * | 1997-02-14 | 2000-03-21 | Denso Corporation | Cooling device boiling and condensing refrigerant |
US6119767A (en) * | 1996-01-29 | 2000-09-19 | Denso Corporation | Cooling apparatus using boiling and condensing refrigerant |
US6247526B1 (en) * | 1998-11-19 | 2001-06-19 | Denso Corporation | Cooling device with arrangement of centrifugal fan |
US6530231B1 (en) * | 2000-09-22 | 2003-03-11 | Te Technology, Inc. | Thermoelectric assembly sealing member and thermoelectric assembly incorporating same |
US6612365B1 (en) * | 1999-09-17 | 2003-09-02 | Matsushita Electric Industrial Co., Ltd. | Heating-element accommodating-box cooling apparatus and method of controlling the same |
US7059148B2 (en) * | 2003-12-01 | 2006-06-13 | Jamco Corporation | Air chiller unit |
US20060243423A1 (en) * | 2005-05-02 | 2006-11-02 | Tellabs Operations, Inc. | Compact heat exchanger and method |
US20070221366A1 (en) * | 2004-07-16 | 2007-09-27 | Matsushita Electric Industrial Co., Ltd. | Heat Exchanger |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3297564B2 (en) * | 1995-06-21 | 2002-07-02 | 松下精工株式会社 | Simultaneous supply and exhaust ventilation fan |
JPH10227554A (en) * | 1997-02-14 | 1998-08-25 | Denso Corp | Cooling apparatus |
JP4354064B2 (en) | 1999-09-17 | 2009-10-28 | パナソニックエコシステムズ株式会社 | Heating element storage box cooling device and control method thereof |
JP2002324993A (en) * | 2001-04-24 | 2002-11-08 | Toshiba Corp | Apparatus for electronic appliance |
JP3960778B2 (en) * | 2001-11-13 | 2007-08-15 | 三菱電機株式会社 | Plug-in unit insertion / extraction mechanism |
JP2004044962A (en) * | 2002-07-15 | 2004-02-12 | Matsushita Ecology Systems Co Ltd | Cooling device |
JP4311056B2 (en) | 2003-03-25 | 2009-08-12 | パナソニック株式会社 | Heat exchanger |
JP2004293862A (en) * | 2003-03-26 | 2004-10-21 | Matsushita Electric Ind Co Ltd | Heat exchanger |
JP2005044857A (en) * | 2003-07-23 | 2005-02-17 | Kyocera Corp | Cooling mechanism |
-
2006
- 2006-09-20 EP EP06798124A patent/EP1901599B1/en active Active
- 2006-09-20 DK DK06798124.1T patent/DK1901599T3/en active
- 2006-09-20 KR KR1020087002504A patent/KR100940967B1/en not_active IP Right Cessation
- 2006-09-20 WO PCT/JP2006/318564 patent/WO2007034797A1/en active Application Filing
- 2006-09-20 CN CN2006800282073A patent/CN101233798B/en active Active
- 2006-09-20 US US11/997,389 patent/US20090139261A1/en not_active Abandoned
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3129753A (en) * | 1959-04-03 | 1964-04-21 | Trane Co | Heating and cooling apparatus |
US3877517A (en) * | 1973-07-23 | 1975-04-15 | Peerless Of America | Heat exchangers |
US4896716A (en) * | 1987-01-27 | 1990-01-30 | The Furukawa Electric Co., Ltd. | Heat pipe type heat-exchanger for the ventilation |
US4966004A (en) * | 1989-11-06 | 1990-10-30 | Amana Refrigeration, Inc. | Electronic control mounting apparatus for refrigerator |
US6119767A (en) * | 1996-01-29 | 2000-09-19 | Denso Corporation | Cooling apparatus using boiling and condensing refrigerant |
US6039111A (en) * | 1997-02-14 | 2000-03-21 | Denso Corporation | Cooling device boiling and condensing refrigerant |
US6247526B1 (en) * | 1998-11-19 | 2001-06-19 | Denso Corporation | Cooling device with arrangement of centrifugal fan |
US6612365B1 (en) * | 1999-09-17 | 2003-09-02 | Matsushita Electric Industrial Co., Ltd. | Heating-element accommodating-box cooling apparatus and method of controlling the same |
US6530231B1 (en) * | 2000-09-22 | 2003-03-11 | Te Technology, Inc. | Thermoelectric assembly sealing member and thermoelectric assembly incorporating same |
US7059148B2 (en) * | 2003-12-01 | 2006-06-13 | Jamco Corporation | Air chiller unit |
US20070221366A1 (en) * | 2004-07-16 | 2007-09-27 | Matsushita Electric Industrial Co., Ltd. | Heat Exchanger |
US20060243423A1 (en) * | 2005-05-02 | 2006-11-02 | Tellabs Operations, Inc. | Compact heat exchanger and method |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7796525B2 (en) * | 2003-10-28 | 2010-09-14 | Hon Hai Precision Industry Co., Ltd. | Apparatus and method for switching connectivity of objects to be sensed |
US20050090909A1 (en) * | 2003-10-28 | 2005-04-28 | Chen-Meng Wu | Apparatus and method for switching connectivity of objects to be sensed |
US20100294458A1 (en) * | 2007-12-17 | 2010-11-25 | Panasonic Corporation | Heat exchange device and device for receiving heat generation body |
US8837140B2 (en) | 2009-09-04 | 2014-09-16 | Delphi Technologies, Inc. | Closed and internal cooling system for car radio |
US20110315347A1 (en) * | 2009-12-16 | 2011-12-29 | Tonlier Energy Technology (Beijing) Co., Ltd. | Isolated Counter-Flow Air Heat Exchanging Device with Vertical Structure |
US10542745B2 (en) | 2010-11-04 | 2020-01-28 | Hitachi Chemical Co., Ltd. | Portable device for ex vivo stimulation of whole blood |
WO2012061307A1 (en) * | 2010-11-04 | 2012-05-10 | Hitachi Chemical Co., Ltd | Portable device for ex vivo stimulation of whole blood |
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US10321614B1 (en) * | 2017-12-12 | 2019-06-11 | Wistron Corporation | Display assembly with heat dissipation |
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Also Published As
Publication number | Publication date |
---|---|
EP1901599B1 (en) | 2011-07-27 |
DK1901599T3 (en) | 2011-09-12 |
EP1901599A1 (en) | 2008-03-19 |
CN101233798B (en) | 2011-06-15 |
WO2007034797A1 (en) | 2007-03-29 |
KR100940967B1 (en) | 2010-02-05 |
KR20080024542A (en) | 2008-03-18 |
EP1901599A4 (en) | 2009-11-18 |
CN101233798A (en) | 2008-07-30 |
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