CN102606541A

CN102606541A - Fan device

Info

Publication number: CN102606541A
Application number: CN2011100258414A
Authority: CN
Inventors: 魏钊科
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2011-01-24
Filing date: 2011-01-24
Publication date: 2012-07-25

Abstract

A fan device comprises a fan and an air director. An air inlet and an air outlet are respectively formed on two opposite sides of the fan, the air director is disposed at the air outlet and consists of a combining portion and a blocking portion, the combining portion is fixedly connected with the fan and positioned on the periphery of the air outlet, the blocking portion extends from the combining portion to the center of the air outlet, is rotationally connected with the combining portion and can drive under the effect of airflow of the fan so that the airflow can be blown out from the air outlet, and when the fan stops working, the blocking portion can block the air outlet.

Description

Fan assembly

Technical field

The present invention relates to a kind of fan assembly, particularly a kind of fan assembly that is applicable to electronic element radiating.

Background technique

At electronic equipment, in server, use the fan of a plurality of being arranged side by side (i.e. parallel connection) to dispel the heat usually as system.Because these fans are and are arranged side by side, the air-out direction during its work is parallel to each other, thereby the common cooling blast institute region covered that produces of these fans is wider, thereby can take into account the radiating requirements of more heat-generating electronic elements simultaneously.

Yet; In server; Sometimes have one or two fan failover and quit work; Promptly and no longer drive air-flow from wind inlet row to exhaust outlet, and the fan that other do not break down still constantly produces cooling blast and blows out from exhaust outlet, the air pressure at the exhaust outlet place of the fan that causes breaking down is greater than the air pressure at wind inlet place; Thereby make the air-flow at this fan outlet place that the trend that refluxes towards wind inlet arranged, thereby make the part airflow reflux in the air-flow that other fans that does not break down produce and run off.

Summary of the invention

In view of this, be necessary to provide a kind of fan assembly that prevents airflow reflux.

A kind of fan assembly; Comprise a fan and a wind scooper, the relative both sides of this fan form a wind inlet and an exhaust outlet respectively, and this wind scooper is located at this exhaust outlet place; This wind scooper comprises that one is fixedly connected with this fan and is positioned at the peripheral connecting part of said exhaust outlet; This wind scooper also comprises a gear part of extending to the exhaust outlet center from this connecting part, and this gear part and said connecting part are rotationally connected, and this gear part can be rotated under the effect of fan airstream and let air-flow blow out from exhaust outlet; And when fan quit work, this gear part can shelter from said exhaust outlet.

Compare with traditional fan, when the fan of said fans device quit work, the exhaust outlet place in this fan was blocked in this gear part, can prevent effectively that air-flow from refluxing and lose towards wind inlet from exhaust outlet.

Description of drawings

Fig. 1 is the three-dimensional exploded view of the fan assembly of one embodiment of the invention.

Fig. 2 is the constitutional diagram and the phase diagram of this fan assembly when work of fan assembly shown in Figure 1.

Fig. 3 is the side view of fan assembly shown in Figure 1 when work.

Fig. 4 is the rear view of fan assembly shown in Figure 1 when quitting work.

The primary component symbol description

Fan 10

Fan assembly 100

Fan frame 11

Side 112

Rotor 12

Through hole 13

Wind inlet 14

Exhaust outlet 15

Pedestal 16

Rib 17

Wind scooper 20

Connecting part 22

Leading edge 222

Lateral margin 224

Narrow limit 225

Gear part 24

Catch 25

Top margin 252

Base 254

Side 256

Vent 27

Circumference 28

Fixing frame 30

Header board 32

Side plate 34

Perforation 35

Embodiment

See also Fig. 1, shown in the figure for the fan assembly 100 of the present invention's one instance.This fan assembly 100 is when using; Usually be arranged side by side in an electronic equipment with a plurality of fans or fan assembly; On the casing (figure does not show) such as server, be used in cool air suction to this server that server is outside for being located at the heat-generating electronic elements heat radiation in the server.

This fan assembly 100 comprises a fan 10, a wind scooper 20 and a fixing frame 30.This fixing frame 30 is fixed in this wind scooper 20 side of this fan 10.

This fan 10 comprises a fan frame 11 and is contained in the rotor 12 in this fan frame 11.This fan frame 11 roughly is square, and the periphery of its sidepiece forms four sides 112.The central authorities of this fan frame 11 form the through hole 13 that runs through vertically.This through hole 13 forms a wind inlet 14 and an exhaust outlet 15 respectively in the two ends of this fan frame 11 on axially.The central authorities of this fan frame 11 are provided with a pedestal 16 in a side of this exhaust outlet 15.This pedestal 16 is roughly rounded.The inwall of the periphery of this pedestal 16 and this fan frame 11 separately.Four rib 17 are connected between the inwall of periphery and this fan frame 11 of this pedestal 16, thus the central authorities that this pedestal 16 is fixed in this fan frame 11.One stator (figure does not show) is fixed in the side that this pedestal 16 faces wind inlet 14.This rotor 12 rotatably is fixed on this stator.

This wind scooper 20 comprises a connecting part 22 and a gear part 24 of extending from this connecting part 22.This connecting part 22 comprises a leading edge 222 and a lateral margin 224 that extends towards this fan 10 from the outer periphery of this leading edge 222.This leading edge 222 is square tabular, the opening (not label) that its central authorities' formation one is square.The undersized of this opening is in the size of the exhaust outlet 15 of this fan 10.This lateral margin 224 is from the outer periphery vertical extent of this leading edge 222.This lateral margin 224 is the square frame shape, and it is made up of vertical four the narrow limits 225 that link to each other of head and the tail.The sidepiece profile phase coupling of the fan frame 11 of the size of this lateral margin 224 and this fan 10.

Extend towards the central authorities of this leading edge 222 from the inner circumference edge of the leading edge 222 of this connecting part 22 this gear part 24.This gear part 24 comprises four catch that adjoin each other 25.These catch 25 all are positioned on the same plane, and with leading edge 222 coplanes of this connecting part 22.To four inner side edges that should leading edge 222, each catch 25 extends towards the central authorities of this leading edge 222 from corresponding inner side edges these four catch 25 respectively.Each catch 25 roughly is isosceles trapezoid, and it comprises a top margin 252, a base 254 and is connected in the dual-side 256 between this top margin 252 and the base 254.This base 254 links to each other with the inner side edge of this leading edge 222, and the inner side edge of the length on this base 254 and this leading edge 222 is suitable.The top margin 252 of this catch 25 is away from this leading edge 222.The width of this catch 25 (promptly a side 256 of this catch 25 is to the distance between another side 256) reduces towards the direction of top margin 252 from its base 254 gradually.The side 256 of two adjacent catch 25 adjoins each other and this dual-side 256 is connected to one in the end near base 254.Adjacent two catch 25 are in being separated from each other near its top end.

The top margin 252 of this catch 25 is the arc of indent.The top margin 252 of these four catch 25 encloses formation one vent 27 jointly in the central authorities of catch 25.This vent 27 is over against the pedestal 16 of this fan 10, and the undersized of this vent 27 is in the size of this pedestal 16.In the present embodiment, the top margin 252 of this catch 25 is 1/4 circular arc.Top margin 252 common formation one circumference 28 of these catch 25.

This gear part 24 is processed by soft material light-duty and that be difficult for breaking, specifically can be cloth or polyester film (Mylar) etc.When fan 10 generation air-flows blow to the gear part 24 of wind scooper 20, under the blowing of air-flow, the outward-dipping extension of direction that four catch 25 of this gear part 24 can carry over air-flow.

This fixing frame 30 comprises a square header board 32 and the side plate 34 that extends towards this wind scooper 20 from the outer periphery of this header board 32.The size of the leading edge 222 of the connecting part 22 of the size of this header board 32 and this wind scooper 20 is suitable.The central authorities of this header board 32 form a perforation 35 to the opening of leading edge 222 that should wind scooper 20.The size of this perforation 35 is suitable with the size of this opening.This side plate 34 is from heavy straight extension of the outer periphery of this header board 32.This side plate 34 is the square frame shape, and the sidepiece periphery of itself and this fan 10 is complementary.The lateral margin 224 of the connecting part 22 of the size of this side plate 34 and this wind scooper 20 is suitable.

Please consult Fig. 2 simultaneously; During assembling, the connecting part 22 of this wind scooper 20 is incorporated into exhaust outlet 15 sides of this fan 10, wherein; The leading edge 222 of this connecting part 22 is attached at the periphery of the exhaust outlet 15 of this fan 10, and the lateral margin 224 of this connecting part 22 is attached on four sides 112 of this fan frame 11.This fixing frame 30 is sheathed on the periphery of the connecting part 22 of this wind scooper 20.The header board 32 of this fixing frame 30 is resisted against on the leading edge of this connecting part 22.The side plate 34 of this fixing frame 30 is attached at the outer surface of the lateral margin 224 of this connecting part 22.Form a drive fit between the fan frame 11 of this fixing frame 30 and this fan 10, thereby this wind scooper 20 firmly is fixed on this fan 10, the air-flow that produces when preventing fan 10 work blows this wind scooper 20 and makes wind scooper 20 break away from fan 10.

Please consult Fig. 3 simultaneously, during these fan assembly 100 work, this fan 10 sucks air-flow and drives air-flow from wind inlet 14 and blows to wind scooper 20 from exhaust outlet 15.Because this gear part 24 is processed by lightweight material, under the effect of wind-force, the direction that this gear part 24 carries over air-flow is outwards kicked up, and the perforation 35 of passing this fixing frame 30 outwards is diagonally extending.These four catch 25 are in being separated from each other near its top margin 252 places, thereby the size of this vent 27 is increased, and are beneficial to air-flow page or leaf profit and pass through.These four catch 25 one common peripheral are set as funnel-like, and along on the direct of travel of air-flow, these four catch 25 are gradually-reducing shape and extend, and are convenient to the central position of air-flow concentrated area guiding over against fan 10.In the present embodiment, this gear part 24 is processed by cloth, thereby this gear part 24 is difficult for producing noise because of air-flow blows.

Please consult Fig. 4 simultaneously; When these fan 10 failover and after quitting work; Owing to still drive air-flow from its exhaust outlet discharge with these fan 10 parallelly connected fan or fan assemblys in the server; The air pressure at exhaust outlet 15 places of this fan 10 is increased, and, cause the air-flow of these exhaust outlet 15 sides that the trend that flows towards wind inlet 14 places is arranged greater than the air pressure at wind inlet 14 places.Because this wind scooper 20 is processed by frivolous soft material; When the air-flow at exhaust outlet 15 places of this fan 10 flows towards these wind inlet 14 places; Each catch 25 of the gear part 24 of this wind scooper 20 moves towards this fan 10 under the effect of wind-force; This catch 25 blocks exhaust outlet 15 places in this fan 10 at last, promptly returns back to state shown in Figure 1.At this moment; These gear parts 24 are positioned on the same plane; And the side 256 of adjacent catch 25 also adjoins each other in the end near top margin 252; Thereby the exhaust outlet 15 of this fan 10 is covered in fully, prevent that air-flow from flowing to wind inlet 14 from the exhaust outlet 15 of this fan 10, avoids air-flow to lose because of backflow.

Understandable, the shape of wind scooper of the present invention is not defined as the form that present embodiment is lifted.When the fan frame of this fan was ring, the connecting part of this wind scooper can be rounded, and to mate the profile of this fan frame, at this moment, the quantity of this catch also can suitably increase and decrease.In addition, the connecting part 22 of this wind scooper 20 also can be fixed on the fan frame 11 of this fan 10 through rivet, screw or gluing mode, so, can save fixing frame 30.

Claims

1. fan assembly; Comprise a fan and a wind scooper, the relative both sides of this fan form a wind inlet and an exhaust outlet respectively, and this wind scooper is located at this exhaust outlet place; This wind scooper comprises that one is fixedly connected with this fan and is positioned at the peripheral connecting part of said exhaust outlet; It is characterized in that: this wind scooper also comprises a gear part of extending to the exhaust outlet center from this connecting part, and this gear part and said connecting part are rotationally connected, and this gear part can be rotated under the effect of fan airstream and let air-flow blow out from exhaust outlet; And when fan quit work, this gear part can shelter from said exhaust outlet.

2. fan assembly as claimed in claim 1 is characterized in that: the central authorities of this gear part form a vent and blow out for the air-flow of fan.

3. fan assembly as claimed in claim 1 is characterized in that: during this fan work, extend along being gradually-reducing shape on the direct of travel of air-flow this gear part.

4. fan assembly as claimed in claim 3 is characterized in that: this gear part comprises a plurality of catch, and these a plurality of catch are along circumferentially be provided with at interval, and the free end space of these a plurality of catch forms said vent.

5. fan assembly as claimed in claim 4 is characterized in that: block when the exhaust outlet place of this fan this gear part, and the sidepiece of adjacent catch adjoins each other.

6. fan assembly as claimed in claim 4 is characterized in that: each catch is trapezoidal, comprise a top margin, a base and be connected in top margin and the base between dual-side, the length on this base is greater than this top margin, this top margin is positioned at the free end of this catch.

7. fan assembly as claimed in claim 6 is characterized in that: the top margin of each catch is the arc of indent.

8. fan assembly as claimed in claim 7 is characterized in that: block when the exhaust outlet place of this fan this gear part, and the top margin of these a plurality of catch is in central position one common peripheral that should fan is set as a circumference.

9. fan assembly as claimed in claim 1; It is characterized in that: the connecting part of this wind scooper comprises a leading edge and a lateral margin that extends from the outer periphery of this leading edge; This leading edge is attached at the periphery of the exhaust outlet of this fan, and this lateral margin is attached at the periphery of the sidepiece of this fan.

10. fan assembly as claimed in claim 9 is characterized in that: also comprise a fixing frame, this fixing frame is sheathed on the air-out oral-lateral of this fan and forms drive fit with fan, and this fixing frame is fixed in wind scooper on this fan.

11. fan assembly as claimed in claim 10 is characterized in that: this fixing frame comprises that a header board reaches the side plate from the periphery extension of this header board, and this header board is resisted against the periphery of the exhaust outlet of this fan, and this side plate is resisted against the periphery of the sidepiece of this fan.

12. fan assembly as claimed in claim 1 is characterized in that: this wind scooper is processed by cloth.

13. fan assembly as claimed in claim 1 is characterized in that: this wind scooper is processed by polyester film.