WO2010114332A2 - Clothes dryer having a steam generator using a hot air heater - Google Patents

Clothes dryer having a steam generator using a hot air heater Download PDF

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Publication number
WO2010114332A2
WO2010114332A2 PCT/KR2010/002041 KR2010002041W WO2010114332A2 WO 2010114332 A2 WO2010114332 A2 WO 2010114332A2 KR 2010002041 W KR2010002041 W KR 2010002041W WO 2010114332 A2 WO2010114332 A2 WO 2010114332A2
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WO
WIPO (PCT)
Prior art keywords
steam
generator
drum
steam generator
duct
Prior art date
Application number
PCT/KR2010/002041
Other languages
French (fr)
Korean (ko)
Other versions
WO2010114332A3 (en
Inventor
송성호
진용철
김민지
배상훈
Original Assignee
(주)엘지전자
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from KR1020090028529A external-priority patent/KR20100110117A/en
Priority claimed from KR1020090135169A external-priority patent/KR20110078377A/en
Application filed by (주)엘지전자 filed Critical (주)엘지전자
Priority to US13/148,699 priority Critical patent/US20120005915A1/en
Priority to CN2010800129525A priority patent/CN102362028A/en
Priority to EP10759057A priority patent/EP2415926A2/en
Publication of WO2010114332A2 publication Critical patent/WO2010114332A2/en
Publication of WO2010114332A3 publication Critical patent/WO2010114332A3/en

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Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00Domestic laundry dryers
    • D06F58/20General details of domestic laundry dryers 
    • D06F58/203Laundry conditioning arrangements
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00Domestic laundry dryers
    • D06F58/02Domestic laundry dryers having dryer drums rotating about a horizontal axis
    • D06F58/04Details 
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00Domestic laundry dryers
    • D06F58/20General details of domestic laundry dryers 
    • D06F58/26Heating arrangements, e.g. gas heating equipment

Definitions

  • the present invention relates to a dryer, and more particularly, to a dryer having a steam generator for generating steam by using the heat of a hot air heater for heating air into the drum of the dryer.
  • a dryer is an apparatus for drying laundry by putting laundry in a state where washing is completed and dehydration is completed into the drum of the dryer, and supplying hot air into the drum to evaporate moisture of the laundry.
  • the dryer includes a drum inside the dryer into which laundry is put, a driving motor for driving the drum, a blowing fan for blowing air into the drum, and a heating means for heating the air introduced into the drum. Is done.
  • the heating means may be a resistance heater that generates heat using electrical resistance or a burner that generates heat by burning gas.
  • the air exiting the drum of the dryer has moisture in the laundry inside the drum, and the air becomes hot and humid.
  • the dryer can be classified according to the method of treating the high temperature and high humidity air, and the hot and humid air is circulated without being discharged to the outside of the dryer to allow heat exchange with the outside air in the condenser so that the moisture contained in the high temperature and high humidity air. It is divided into a condensation type dryer for condensing and an exhaust type dryer for directly discharging the air of a high temperature and high humidity passing through the drum to the outside.
  • a steam generator mounted on a dryer has its own heater therein, separate from a heater that produces hot air supplied to the drum. More specifically, the steam generator has a container for receiving a predetermined amount of water, and a heater provided in the container for heating the received water. The water in the steam generator is heated and steamed by the heating of the heater, and the generated steam is supplied into the drum. The steam generator also has a reservoir for temporarily storing water to be supplied to the container.
  • the steam generator of the conventional dryer should directly heat the supplied water by using a heater provided separately to make steam.
  • a heater provided separately to make steam.
  • the heater may be overheated. Therefore, for safety reasons, the heater should always be submerged in water. That is, the water stored in the container of the steam generator should always maintain a minimum level to submerge the heater.
  • the steam generator has a water level sensor which detects that the stored water is reduced and the water level is lowered to reach the minimum level, and when the minimum level is reached, water is automatically supplied to the container of the steam generator from the reservoir.
  • the conventional steam generator since the conventional steam generator has to be equipped with a separate member, such as a water level sensor for detecting the water level, the structure and manufacturing process is complicated.
  • the heater for steam generation since the heater for steam generation is installed separately in the heater for hot air generation, the structure and manufacturing process is similarly complicated, and more energy is required for the operation of the dryer.
  • the present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a dryer having a simple steam generator, which can be easily manufactured, and does not have a separate heater for steam generation. It is to provide a dryer that improves energy efficiency by generating steam using a hot air heater to heat the.
  • the drum rotatably mounted inside the body; A duct for guiding air supplied to the drum; A heater assembly provided in the duct for heating air supplied to the drum; And a steam generator for generating steam to be supplied to the drum by using heat generated by the heater assembly.
  • the steam generator is a metal tube bent in a zigzag adjacent to the heater assembly, can receive radiant heat and convection heat from the heater assembly, the steam generator is disposed around the air outlet of the heater assembly, The steam generator may be formed to surround the heater assembly.
  • Dryer of the present invention is connected to the steam generator one end of the steam hose for guiding the steam discharged from the steam generator; And a nozzle provided at the other end of the steam hose and spraying steam to the drum.
  • the steam hose is installed in contact with the duct, the steam generator is made of an aluminum tube or a copper tube.
  • the steam generator of the present invention may be composed of a first generator disposed above the heater assembly and a second generator disposed below the heater assembly.
  • the steam generator may include a third generator connected to the first generator and the second generator and disposed adjacent to a side of the heater assembly, wherein the third generator is configured to provide a heater assembly to which heated air is discharged. It may be arranged adjacent to the side.
  • the steam generator may further include an auxiliary generator disposed in the duct to be connected to the steam generator and reheating steam discharged from the steam generator by using heated air in the duct.
  • the auxiliary generator extends along the duct to an outlet of the duct communicating with the drum, and a nozzle is mounted at the end of the auxiliary generator to inject steam from the outlet into the drum, and the auxiliary generator extends long along the duct. It can be made of a metal tube.
  • the steam hose is connected to the steam generator for guiding the steam discharged from the steam generator; And a nozzle provided at an end of the steam hose and injecting steam into the drum, wherein the nozzle may be installed in a rear supporter or the duct rotatably supporting the rear end of the drum.
  • the auxiliary generator extends along the duct to the outlet of the duct in communication with the drum, and a nozzle is mounted at the end of the auxiliary generator to inject steam from the outlet into the drum.
  • the storage tank for storing the water supplied to the steam generator; And a water supply hose for guiding the water in the reservoir to the steam generator, wherein the storage tank is formed of a cartridge detachably installed in a drawer installed on the front upper side of the main body, and opened and closed. It further comprises a pump or valve for.
  • the steam generator can generate steam without a separate heater for steam generation, the structure is simplified and manufacturing is easy due to the reduction of the components required for the manufacturing process. In addition, the energy required is reduced because steam is generated by using the heat of the heater assembly inside the dryer.
  • FIG. 1 is a perspective view showing a dryer having a steam generator according to the present invention
  • FIG. 2 is a perspective view showing a first embodiment of a steam generator
  • FIG. 3 is a partial perspective view showing in more detail the steam generator according to the first embodiment
  • FIG. 4 is a partial perspective view showing a modification of the steam generator according to the first embodiment
  • FIG. 5 is a perspective view showing a second embodiment of the steam generator
  • FIG. 6 is a partial perspective view showing in more detail the steam generator according to the second embodiment.
  • FIG. 1 is a perspective view showing a dryer having a steam generator according to the present invention
  • Figure 2 is a perspective view showing a first embodiment of the steam generator
  • 3 is a partial perspective view showing in more detail the steam generator according to the first embodiment.
  • the clothes dryer 100 includes a main cover including a front cover 101, a side cover 102, a rear cover (not shown), and a top plate (not shown) forming an external appearance. It has a drum 120 installed in the main body.
  • the drum 120 is rotatably installed in the main body and accommodates laundry to be dried.
  • the clothes dryer 100 is mounted on the front of the front cover 101, the door 104 for opening and closing the opening of the drum 120, and is provided on the upper side of the front cover 101, drying
  • the control panel 103 is provided with various buttons for inputting a condition.
  • the drum 120 has a hollow cylinder shape with open front and rear ends. That is, openings are formed in front and rear portions of the drum 120, respectively.
  • the drum 120 is supported by a front supporter (not shown) installed in the front part of the main body and a rear supporter 122 (see FIG. 2) installed in the rear part of the main body. More specifically, the front supporter is formed with an opening in communication with the opening of the front end of the drum 120, the rim is formed on the outer peripheral portion of the opening. The inner circumferential surface of the rim of the front supporter rotatably supports the outer circumferential surface of the front end portion of the drum 120. The opening of the front end of the drum 120 communicates with the outside of the main body through the opening of the front supporter, and is opened and closed by the door 104.
  • the user may open the door 104 and put laundry into the drum 120 through openings in the front supporter and the front end of the drum 120.
  • the rear supporter 122 includes a recess, and the inner circumferential surface of the recess rotatably supports the outer circumferential surface of the rear end of the drum 120.
  • the front supporter and the rear supporter 122 are stationary, while the drum 120 is relatively rotatably supported by these stationary supporters.
  • the clothes dryer has a blower fan through which the air inside the drum 120 circulates. It is provided with a heat exchanger to condense the moisture contained in the circulating air. The air discharged from the drum 120 is introduced into the drum 120 again by the blowing fan. At this time, a duct is provided to guide the air circulating so that the air discharged from the drum flows back into the drum.
  • the suction part and the discharge part of the duct cannot be connected to the rotating drum 120, and thus the fixed front supporter and the rear supporter 122 ) May be connected to communicate with the inside of the drum (120).
  • a heater assembly 200 for heating the air introduced into the drum 120 to make hot air is provided in the duct.
  • the duct may include an intermediate duct 140 and a rear duct 130, as shown in FIG.
  • the intermediate duct 140 may be provided with various accessories such as a heat exchanger and a blower fan as well as the heater assembly 200.
  • FIG. 2 shows only a part of the intermediate duct 140 which receives only the heater assembly 200, and similarly to the heater assembly 200, a heat exchanger and a blowing fan may also be installed in the intermediate duct 140.
  • the rear duct 130 is connected to the intermediate duct 140 and is connected to the rear supporter 122 so as to communicate with the drum 120 again.
  • the rear supporter 122 has an opening 123 in communication with the rear end of the open drum 120, the end of the rear duct 130 is connected to the opening 123. Therefore, the rear duct 130 is supplied by the heat exchanger in the intermediate duct 140 and the air heated by the heater assembly 200 again into the drum 120 through the opening 123.
  • the front duct is connected to the front of the intermediate duct 140, although not shown, and sucks air in the drum 120 having a relatively high humidity and a low temperature by drying the laundry.
  • the heater assembly 200 may be formed of a resistance coil heater using electric resistance heat, or may be formed of a burner that generates heat by burning gas.
  • the dryer of the present invention may have the arrangement of the duct structure according to the exhaust type dryer and thus related parts.
  • the condensation dryer and the exhaust dryer are distinguished from each other only in the manner of circulating the air, so it is understood that the steam generator and related configurations described below can be applied to the exhaust dryer without further modification.
  • a drawer 110 is provided to be pulled out from the front cover 101 of the dryer body, and the drawer 110 is detachably provided with a cartridge 113 corresponding to a reservoir for storing water. Is mounted.
  • the drawer 110 is installed above the front cover 101 of the dryer, and is installed to be pulled out toward the front of the main body.
  • the drawer 110 is installed on the side of the control panel 103 at the top of the front cover.
  • the cartridge 113 is provided with a handle 114, and by using the handle 114, the user can easily detach or mount the cartridge 113 from the drawn drawer 110.
  • a heater assembly 200 for heating the air flowing into the drum is provided in the intermediate duct 140 located below the clothes dryer.
  • a steam generator 230 is provided inside the intermediate duct 140 adjacent to the heater assembly 200, and receives heat from the heater assembly to convert water into steam.
  • the cartridge 113 and the steam generator 230 are connected to each other by a water supply hose 116, and the pump 115 is provided at the water supply hose 116.
  • the water stored in the cartridge 113 is supplied to the steam generator 250 through the water supply hose 116 to be changed to steam, and the pump 115 opens and closes the water supply hose 116 to steam the cartridge. Adjust the amount of water supplied to the generator. That is, when the pump 115 opens the water supply hose 116 and supplies water to the steam generator 230 at the point where steam generation is required, the supplied water is changed to steam in the steam generator.
  • the present invention is not limited thereto, and the water supply hose 116 is provided with a valve to open and close the hose.
  • the amount of water supplied to the steam generator may be controlled.
  • the cartridge is provided on the upper left side as seen from the front of the dryer, the steam generator is provided on the lower right, by using the height difference between the cartridge and the steam generator,
  • the water to be supplied can also be controlled by a valve.
  • the steam generator 230 according to the first embodiment of the present invention is shown in more detail with the heater assembly 200.
  • the heater assembly 200 basically includes a heating unit, and the heating unit includes a support 201 and a resistance coil 202 wound around the support 201.
  • the support 201 is made of an insulating material against electricity and heat, and the resistance coil 202 generates heat using electrical resistance.
  • Such a plurality of heating units are gathered to form one heater assembly 200.
  • the heater assembly 200 may further have a support plate 203 to which the heating units are fitted, as shown in FIG. 5, and the heating units may be more stably fixed in the duct by the support plate 203. .
  • the inside of the duct 140 is provided with a steam generator 230 for receiving the heat of the heater assembly 200 to change the water into steam.
  • the steam generator 230 is a long metal tube having a predetermined diameter and is located on one side of the heater assembly 200.
  • the steam generator 230 is disposed in a zigzag form on the upper side of the heater assembly 200.
  • the shape in which the steam generator is disposed is not limited thereto, and may be disposed in a zigzag shape on the upper side and both side surfaces of the heater assembly 200.
  • it is advantageous in terms of heat transfer that the steam generator made of the metal tube is made of copper tube.
  • both ends of the steam generator 230 are provided with an inlet 231 and an outlet 232 protruding to the outside of the duct.
  • the inlet 231 is a passage through which water is introduced into the steam generator from the cartridge 113
  • the outlet 232 is a passage through which steam generated by the steam generator is discharged.
  • a water supply hose 116 is connected to the inlet, and water stored in the cartridge 113 flows into the steam generator, and a steam hose 117 is connected to the outlet 232 to discharge steam generated from the steam generator. It goes out.
  • the steam hose 117 is preferably made of a metal pipe, considering the temperature of the steam flowing therein.
  • the steam generator 230 receives heat generated by the heater assembly indirectly by convection through air or directly through radiation to heat the water stored therein and convert the water into steam.
  • the steam generator 230 is a small diameter metal tube, so the amount of water flowing is small.
  • the steam generator 230 is arranged in a zigzag, it has a considerably large heat transfer area. Thus, a small amount of water flowing in the steam generator 230 can be quickly heated and converted to steam.
  • Steam generators are preferably made of copper tubes or aluminum tubes to increase the heat transfer rate.
  • a nozzle 118 is provided at the end of the steam hose 117 to inject steam to the drum 120.
  • the nozzle 118 may be installed at a rear supporter 122 supporting the drum 120 at a rear end thereof.
  • the steam flowing inside the steam hose 117 may be condensed on the inner wall of the steam hose 117 when the temperature is lowered.
  • the steam hose 117 may be installed near the outer wall of the rear duct 130, which is a passage through which hot air heated by a heater flows into the drum.
  • the steam hose 117 is preferably attached to the rear duct 130 to receive high temperature heat from the rear duct 130.
  • the steam hose is preferably made of a metal pipe having a good heat transfer rate.
  • the nozzle 118 provided at the end of the steam hose 117 is installed in the rear supporter 122 supporting the rear of the dryer drum 120, through the open rear end of the drum 120 in the nozzle Steam is injected into the drum.
  • FIG. 4 shows another embodiment in which the nozzle 118 is installed.
  • the steam hose 117 is installed in close contact with the rear duct 130 to prevent condensation of steam passing through the steam hose 117.
  • the nozzle 118 is installed above the rear duct 130, and the nozzle is installed near the inlet, ie, the opening 123, through which hot air flows into the drum.
  • the steam hose 117 and the nozzle 118 can continue to receive heat from the rear duct 130, and thus prevent the steam inside the steam hose from condensing during the flow. have.
  • FIG. 5 is a perspective view showing a second embodiment of the steam generator
  • Figure 6 is a partial perspective view showing in more detail the steam generator according to the second embodiment.
  • a second embodiment of the steam generator will be described in detail with reference to these drawings.
  • air is first introduced to the front of the heater assembly 200, and the air of the heater assembly 200 is passed through the heater assembly 200. It is heated sequentially by the heating units. Thereafter, the heated air is discharged from the rear of the heater assembly 200.
  • the air introduced in the unheated state absorbs a lot of heat from the front portion thereof compared with the rear portion of the heater assembly 200.
  • the rear portion of the heater assembly 200 relatively retains more heat that can be used for heating.
  • the heating of the air at the rear part of the heater assembly 200 since the heating of the air at the rear part of the heater assembly 200 is actually completed, the air at the rear part has a significantly higher temperature than the air at the front part.
  • the air at the rear has more thermal energy to heat other objects than the air at the front.
  • the rear part of the heater assembly 200 that is, the air outlet part
  • the steam generator 330 according to the second embodiment is configured to be disposed only around the rear portion of the heater assembly 200, that is, around the air discharge portion.
  • the steam generator 330 according to the second embodiment may generate steam efficiently and efficiently by using the high heating capacity of the rear part (discharge part) of the heater assembly.
  • the steam generator 330 compared to the steam generator 220 of the first embodiment extending throughout the heater assembly 200, the steam generator 330 has a simpler and easier to manufacture structure, thereby reducing the manufacturing cost Productivity can be increased.
  • the steam generator 330 may be configured to surround the heater assembly 200 to have a higher heating efficiency. More specifically, as shown in FIG. 6, the steam generator 330 basically includes a first generator 331 disposed above the rear portion (ie, the discharge portion) of the heater assembly 200. Have That is, the first generator 331 is disposed spaced apart from the upper surface of the rear portion (discharge portion) by a predetermined interval. In addition, the steam generator 330 may have a second generator 332 disposed below the rear portion (discharge portion) of the heater assembly 200. In other words, the second generator 332 is disposed spaced apart from the lower surface of the rear part (discharge part) at a predetermined interval.
  • the first and second generators 331 and 332 can greatly increase the heating efficiency by using both the upper and lower rear portions of the heater assembly having the largest heating capability.
  • the steam generator 330 may have a third generator 333 which connects the first generator and the second generators 331 and 332 and is disposed adjacent to the side of the rear part of the heater assembly 200. .
  • the third generator 333 may be disposed adjacent to the left side or the right side of the rear portion of the heater assembly 200.
  • the third generator 333 is disposed adjacent to the rear side (that is, the rear end) of the heater assembly where the highest temperature air is directly discharged, that is, to increase the heating efficiency. More advantageous.
  • the steam generator 330 that is, the first to third generators 331, 332, 333, is made of a metal tube bent in a zigzag parallel to the surface of the heater assembly 200 facing in the same manner as in the first embodiment described above. Accordingly, when water is supplied through the inlet 335, the water is immediately converted into steam while passing through the first to third generators 331-333 and discharged through the outlet 336.
  • the first and third generators 331, 332, and 333 surround the portion having the highest heating capacity of the heater assembly 200 while increasing the heat transfer area. For this reason, the heating efficiency in the stem generator 330 according to the second embodiment is maximized.
  • the outlet 336 protrudes out of the duct, and the steam hose 117 together with the nozzle 118 may be connected to the outlet 336.
  • the steam may be supplied into the drum 120 through the steam hose 117 and the nozzle 118.
  • the steam generator 220 according to the second embodiment may further include an auxiliary generator 334.
  • the auxiliary generator 334 is connected to the steam generator 320, precisely the outlet 336, and is disposed in the duct, ie the rear duct 130.
  • the auxiliary generator 334 extends away from the heater assembly 200 along the flow direction of the heated air discharged from the heater assembly 200. That is, the auxiliary generator 334 further extends along the rear duct 130 from the steam generator 330, and also toward the drum 210, an outlet of the duct that is in communication with the drum 210. Extending continuously.
  • the auxiliary generator 334 may be made of a metal tube like the first to third generators, and may extend in a straight line in the drawing, but may be bent in a zigzag to increase the heat transfer area. Steam discharged from the steam generator 330 is reheated by the hot air flowing in the duct while passing through the auxiliary generator 334, and does not condense. Therefore, the amount and quality of steam actually supplied to the drum 120 by this auxiliary generator 334 can be greatly increased.
  • the end of the auxiliary generator 334 may extend through the rear duct 130 to the outside, the outlet 337 for discharging steam may be formed in the end have.
  • the steam hose 117 may be connected, and the nozzle 118 is provided at the end of the steam hose 117.
  • the nozzle 118 is installed in the rear supporter 122 rotatably supporting the rear end of the drum 120 as shown in FIG. 2 or the rear duct adjacent to the opening 123 of the rear supporter. More preferably, 130 may be installed at a portion communicating with the drum of the rear duct 130.
  • the outlet of the duct that the auxiliary generator 334 itself is in communication with the drum along the rear duct 130, That is, it may extend to the opening 123.
  • a nozzle 118 may be mounted at the end of the auxiliary generator 334 to inject steam from the discharge port into the drum.
  • the inlet 335 is the water supply hose so that the water flows into the steam generator from the cartridge 113 detachably installed in the drawer (110) 116).
  • the steam generator 330 may likewise be made of an aluminum tube or a copper tube.
  • the steam drying course is input through the input unit of the control panel, and a drying process is started.
  • the heater is heated by the heater assembly 230 into the dryer drum 120. Hot and dry air enters and heats the clothes to dry them.
  • the pump 115 is operated so that the water stored in the cartridge 113 through the water supply hose 116 the steam generator (230,330) Is supplied.
  • the supplied water is converted into steam in a short moment in the steam generators 220 and 230 by receiving heat from the heater assembly 200.
  • the steam generated by the steam generator is injected into the drum 120 through the steam hose 117 and the nozzle 118.
  • the time when the steam is to be injected the user may be controlled by manually operating the control panel, or the time when the steam is injected according to the drying course selected by the user may be automatically determined by the dryer controller. Then, after the dryer goes through a plurality of drying processes, if the water stored in the cartridge 113 is consumed, the user may pull out the drawer 110 and pour water into the cartridge 113 to replenish.
  • Each of the embodiments of the present invention does not require a separate heater for steam generation by generating steam by using the heat of the heater assembly 200 as described above.

Abstract

A dryer is disclosed which has a steam generator which is highly energy efficient and inexpensive to produce. The present invention provides a dryer comprising: a drum for receiving laundry, which is rotatably mounted within a main body; a duct for guiding air being supplied to the drum; a heater assembly which is provided within the duct and heats the air being supplied to the drum; and a steam generator which is located adjacent to the heater assembly and uses the heat generated by the heater assembly to generate steam to be supplied to the drum.

Description

열풍히터를 이용한 스팀발생기를 구비한 의류건조기Clothes dryer with steam generator using hot air heater
본 발명은 건조기에 관한 것으로, 보다 상세하게는 건조기의 드럼내부로 공기를 가열하는 열풍히터의 열을 이용하여 스팀을 발생시키는 스팀발생기를 구비한 건조기에 관한 것이다.The present invention relates to a dryer, and more particularly, to a dryer having a steam generator for generating steam by using the heat of a hot air heater for heating air into the drum of the dryer.
일반적으로, 건조기라 함은 세탁이 완료되어 탈수 과정이 종료된 상태의 세탁물을 건조기의 드럼 내부로 투입하고, 드럼 내부로 열풍을 공급하여 세탁물의 수분을 증발시켜서 세탁물을 건조하는 기기이다. In general, a dryer is an apparatus for drying laundry by putting laundry in a state where washing is completed and dehydration is completed into the drum of the dryer, and supplying hot air into the drum to evaporate moisture of the laundry.
이러한 건조기의 구성을 보면, 건조기는 세탁물이 투입되는 건조기 내부의 드럼과, 드럼을 구동하는 구동 모터와, 드럼 내부로 공기를 불어 넣는 송풍팬과, 드럼 내부로 유입되는 공기를 가열하는 가열수단으로 이루어진다. 그리고, 상기 가열수단은 전기저항을 이용하여 열을 발생시키는 저항히터 또는 가스를 연소시켜서 열을 발생시키는 버너가 될 수 있다. In the construction of the dryer, the dryer includes a drum inside the dryer into which laundry is put, a driving motor for driving the drum, a blowing fan for blowing air into the drum, and a heating means for heating the air introduced into the drum. Is done. The heating means may be a resistance heater that generates heat using electrical resistance or a burner that generates heat by burning gas.
건조기의 드럼을 빠져 나가는 공기는 드럼 내부 세탁물의 수분을 가지게 되어 고온 다습한 상태의 공기가 된다. 이때 이 고온 다습한 공기를 처리하는 방식에 따라서 건조기를 분류할 수 있는데, 고온 다습한 공기가 건조기 외부로 배출되지 않고 순환하면서 응축기에서 외부 공기와 열교환이 일어나도록 하여 고온 다습한 공기 중에 포함된 수분을 응축시키는 응축식 건조기와, 드럼을 통과하고 나오는 고온 다습한 상태의 공기를 외부로 직접 배출시켜 버리는 배기식 건조기로 나뉘어진다.The air exiting the drum of the dryer has moisture in the laundry inside the drum, and the air becomes hot and humid. At this time, the dryer can be classified according to the method of treating the high temperature and high humidity air, and the hot and humid air is circulated without being discharged to the outside of the dryer to allow heat exchange with the outside air in the condenser so that the moisture contained in the high temperature and high humidity air. It is divided into a condensation type dryer for condensing and an exhaust type dryer for directly discharging the air of a high temperature and high humidity passing through the drum to the outside.
그런데, 세탁이 완료되어 건조기로 투입된 세탁물에는 많은 주름이 존재하게 되고 이러한 주름은 건조과정에서도 제거되지 않아서 건조기에서 건조 후 다시 다림질을 하여야 하는 불편함이 있다. 또한 세탁 후의 이러한 주름 뿐만이 아니라 장농속에 의류를 보관하는 도중에도 주름이나 냄새가 발생하게 되고 또는 세균이 번식하게 되는 등의 문제가 있다. 이러한 문제를 해결하기 위해서, 의류건조기에 스팀발생기를 장착하여 드럼 내부에서 건조 중인 의류에 스팀을 분사하여 주름이나 냄새를 제거하고 또한 살균 기능까지 하도록 하였다.By the way, the laundry is completed and a lot of wrinkles are present in the laundry put into the dryer, these wrinkles are not removed even in the drying process, there is an inconvenience that you need to iron again after drying in the dryer. In addition, there are problems such as wrinkles and odors or germs propagation during storage of clothes in the intestinal tract as well as the wrinkles after washing. In order to solve this problem, a steam generator is installed in the clothes dryer to spray steam on the clothes being dried inside the drum to remove wrinkles and odors and to sterilize them.
일반적으로 건조기에 장착되는 스팀 발생기는 드럼에 공급되는 뜨거운 공기를 생성하는 히터와는 별도로 그 내부에 자체적인 히터를 갖는다. 보다 상세하게는, 상기 스팀 발생기는 소정량의 물을 수용하는 컨테이너와, 상기 컨테이너내에 구비되며 수용된 물을 가열하는 히터를 갖는다. 상기 히터의 발열에 의해서 스팀발생기 내부의 물이 가열되어 스팀화되고 발생한 스팀은 드럼 내부로 공급된다. 또한, 상기 스팀 발생기는 상기 컨테이너에 공급될 물을 임시적으로 저장하는 저장조를 갖는다. In general, a steam generator mounted on a dryer has its own heater therein, separate from a heater that produces hot air supplied to the drum. More specifically, the steam generator has a container for receiving a predetermined amount of water, and a heater provided in the container for heating the received water. The water in the steam generator is heated and steamed by the heating of the heater, and the generated steam is supplied into the drum. The steam generator also has a reservoir for temporarily storing water to be supplied to the container.
이러한 종래의 건조기의 스팀발생기는 스팀을 만들기 위해서 내부에 별도록 구비된 히터를 이용하여, 공급된 물을 직접 가열하여야 한다. 그러나, 스팀 발생으로 인해, 스팀 발생기 내부에 저장된 물의 양이 줄어들어 히터가 물 바깥으로 노출되면, 상기 히터는 과열될 수 있다. 따라서, 안전상의 이유로, 상기 히터는 항상 물 속에 잠겨 있여야 한다. 즉, 상기 스팀발생기의 컨테이너 내부에 저장되는 물은 항상 상기 히터를 물에 잠기게 하는 최소한의 수위를 유지하고 있어야 한다. 이러한 이유로, 스팀발생기는 저장된 물이 감소하여 수위가 낮아져서 최소 수위에 도달하는 것을 감지하는 수위센서를 가지며, 상기 최소 수위에 도달하면, 자동적으로 상기 스팀 발생기의 컨테이너에는 저장조로부터 물이 공급된다. The steam generator of the conventional dryer should directly heat the supplied water by using a heater provided separately to make steam. However, due to steam generation, if the amount of water stored inside the steam generator is reduced and the heater is exposed to the outside of the water, the heater may be overheated. Therefore, for safety reasons, the heater should always be submerged in water. That is, the water stored in the container of the steam generator should always maintain a minimum level to submerge the heater. For this reason, the steam generator has a water level sensor which detects that the stored water is reduced and the water level is lowered to reach the minimum level, and when the minimum level is reached, water is automatically supplied to the container of the steam generator from the reservoir.
따라서, 종래의 스팀발생기는 수위를 감지하는 수위센서와 같은 별도의 부재가 장착되어야 하기 때문에, 구조 및 제작공정이 복잡해진다. 또한, 열풍발생용 히터에 별도로 스팀발생용 히터가 설치되므로, 마찬가지로 구조 및 제작공정이 복잡해지며, 더 많은 에너지가 건조기 작동에 요구된다. Therefore, since the conventional steam generator has to be equipped with a separate member, such as a water level sensor for detecting the water level, the structure and manufacturing process is complicated. In addition, since the heater for steam generation is installed separately in the heater for hot air generation, the structure and manufacturing process is similarly complicated, and more energy is required for the operation of the dryer.
본 발명은 상술된 문제점들을 해결하기 위한 것으로서, 본 발명의 목적은 단순한 구조를 가지며 용이하게 제조가 가능한 스팀 발생기를 갖는 건조기를 제공하는 것이며, 또한, 스팀발생을 위한 별도의 히터를 구비하지 않고 공기를 가열하는 열풍히터를 이용하여 스팀을 발생시킴으로서 에너지 효율을 향상시킨 건조기를 제공하는 것이다. SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a dryer having a simple steam generator, which can be easily manufactured, and does not have a separate heater for steam generation. It is to provide a dryer that improves energy efficiency by generating steam using a hot air heater to heat the.
본 발명은 상기 목적을 위해서, 본체 내부에 회전가능하게 장착되는 드럼; 상기 드럼으로 공급되는 공기를 안내하는 덕트; 상기 덕트내에 제공되며 드럼으로 공급되는 공기를 가열하는 히터어셈블리; 및 상기 히터어셈블리에서 발생되는 열을 이용하여 상기 드럼에 공급될 스팀을 발생시키는 스팀발생기;를 포함하는 건조기를 제공한다. The present invention for the above purposes, the drum rotatably mounted inside the body; A duct for guiding air supplied to the drum; A heater assembly provided in the duct for heating air supplied to the drum; And a steam generator for generating steam to be supplied to the drum by using heat generated by the heater assembly.
상기 스팀 발생기는, 상기 히터어셈블리에 인접하여 지그재그로 절곡되는 금속관이며, 상기 히터어셈블리로부터 복사열 및 대류열을 전달받을 수 있으며, 상기 스팀발생기는, 상기 히터 어셈블리의 공기 배출부 주위에 배치되거나, 상기 스팀 발생기는 상기 히터 어셈블리를 감싸도록 형성될 수 있다.The steam generator is a metal tube bent in a zigzag adjacent to the heater assembly, can receive radiant heat and convection heat from the heater assembly, the steam generator is disposed around the air outlet of the heater assembly, The steam generator may be formed to surround the heater assembly.
본 발명의 건조기는 상기 스팀발생기에 일단이 연결되어 스팀발생기에서 배출되는 스팀을 안내하는 스팀호스; 및 상기 스팀호스의 타단에 구비되고, 상기 드럼으로 스팀을 분사하는 노즐;을 더 포함할 수 있다.Dryer of the present invention is connected to the steam generator one end of the steam hose for guiding the steam discharged from the steam generator; And a nozzle provided at the other end of the steam hose and spraying steam to the drum.
상기 스팀호스는 상기 덕트에 접촉하면서 설치되며, 상기 스팀발생기는 알루미늄관 또는 동관으로 이루어진다.The steam hose is installed in contact with the duct, the steam generator is made of an aluminum tube or a copper tube.
또한, 본 발명의 상기 스팀 발생기는 상기 히터 어셈블리의 상부 위쪽에 배치되는 제 1 발생기 및 상기 히터 어셈블리의 하부 아래쪽에 배치되는 제 2 발생기로 이루어질 수 있다.In addition, the steam generator of the present invention may be composed of a first generator disposed above the heater assembly and a second generator disposed below the heater assembly.
상기 스팀 발생기는 상기 제 1 발생기 및 상기 제 2 발생기를 연결하며, 상기 히터 어셈블리의 측부에 인접하게 배치되는 제 3 발생기를 포함할 수 있으며, 상기 제 3 발생기는 가열된 공기가 배출되는 히터 어셈블리의 측부에 인접하게 배치될 수 있다.The steam generator may include a third generator connected to the first generator and the second generator and disposed adjacent to a side of the heater assembly, wherein the third generator is configured to provide a heater assembly to which heated air is discharged. It may be arranged adjacent to the side.
또한, 상기 스팀 발생기는 상기 스팀 발생기와 연결되도록 상기 덕트내에 배치되며, 상기 덕트내의 가열된 공기를 이용하여 스팀 발생기에서 배출된 스팀을 재가열하는 보조 발생기를 더 포함할 수 있다.The steam generator may further include an auxiliary generator disposed in the duct to be connected to the steam generator and reheating steam discharged from the steam generator by using heated air in the duct.
상기 보조 발생기는 상기 덕트를 따라 드럼과 연통되는 덕트의 배출구까지 연장되며, 노즐이 상기 배출구에서 드럼 내부로 스팀을 분사하도록 상기 보조발생기의 끝단에 장착되며, 상기 보조 발생기는 상기 덕트를 따라 길게 연장되는 금속관으로 이루어질 수 있다. The auxiliary generator extends along the duct to an outlet of the duct communicating with the drum, and a nozzle is mounted at the end of the auxiliary generator to inject steam from the outlet into the drum, and the auxiliary generator extends long along the duct. It can be made of a metal tube.
또한 본 발명은, 상기 스팀발생기에 연결되어 스팀발생기에서 배출되는 스팀을 안내하는 스팀호스; 및 상기 스팀호스의 끝단에 제공되며 상기 드럼내에 스팀을 분사하는 노즐;을 더 포함하며, 상기 노즐은 상기 드럼의 후단부를 회전가능하게 지지하는 리어 서포터 또는 상기 덕트에 설치될 수 있다.In another aspect, the present invention, the steam hose is connected to the steam generator for guiding the steam discharged from the steam generator; And a nozzle provided at an end of the steam hose and injecting steam into the drum, wherein the nozzle may be installed in a rear supporter or the duct rotatably supporting the rear end of the drum.
상기 보조 발생기는 상기 덕트를 따라 드럼과 연통되는 덕트의 배출구까지 연장되며, 노즐이 상기 배출구에서 드럼 내부로 스팀을 분사하도록 상기 보조발생기의 끝단에 장착된다. The auxiliary generator extends along the duct to the outlet of the duct in communication with the drum, and a nozzle is mounted at the end of the auxiliary generator to inject steam from the outlet into the drum.
또한, 본 발명은, 상기 스팀발생기에 공급되는 물을 저장하는 저장조; 및 상기 저장조의 물을 상기 스팀발생기로 안내하는 급수호스;를 더 포함하며, 상기 저장조는 본체의 전면 상부에 인출가능하게 설치된 드로워에 탈착가능하게 설치되는 카트리지로 이루어지며, 급수호스를 개폐하기 위한 펌프 또는 밸브를 더 포함한다.In addition, the present invention, the storage tank for storing the water supplied to the steam generator; And a water supply hose for guiding the water in the reservoir to the steam generator, wherein the storage tank is formed of a cartridge detachably installed in a drawer installed on the front upper side of the main body, and opened and closed. It further comprises a pump or valve for.
본 발명은 스팀발생기에서 스팀발생용 히터를 별도로 구비하지 않고 스팀을 발생시킬 수 있으므로 제조과정에 소요되는 부품의 감소로 인해 구조가 단순해 지며 제조가 용이해 진다. 또한 건조기 내부의 히터 어셈블리의 열을 이용하여 스팀을 발생시키기 때문에 소요되는 에너지가 감소한다. In the present invention, since the steam generator can generate steam without a separate heater for steam generation, the structure is simplified and manufacturing is easy due to the reduction of the components required for the manufacturing process. In addition, the energy required is reduced because steam is generated by using the heat of the heater assembly inside the dryer.
도 1는 본 발명에 따른 스팀발생기를 갖는 건조기를 나타내는 사시도이며,1 is a perspective view showing a dryer having a steam generator according to the present invention,
도 2은 스팀발생기의 제 1 실시예를 나타내는 사시도이며,2 is a perspective view showing a first embodiment of a steam generator,
도 3은 제 1 실시예에 따른 스팀 발생기를 보다 상세하게 보여주는 부분 사시도이며,3 is a partial perspective view showing in more detail the steam generator according to the first embodiment,
도 4는 제 1 실시예에 따른 스팀 발생기의 변형예를 보여주는 부분사시도이며,4 is a partial perspective view showing a modification of the steam generator according to the first embodiment,
도 5는 스팀발생기의 제 2 실시예를 나타내는 사시도이며,5 is a perspective view showing a second embodiment of the steam generator,
도 6은 제 2 실시예에 따른 스팀 발생기를 보다 상세하게 나타내는 부분 사시도이다. 6 is a partial perspective view showing in more detail the steam generator according to the second embodiment.
본 발명에 따른 건조기의 일 예가 첨부된 도면을 참조하여 다음에서 상세하게 설명된다.An example of a dryer according to the present invention is described in detail below with reference to the accompanying drawings.
도 1는 본 발명에 따른 스팀발생기를 구비한 건조기를 나타내는 사시도이며, 도 2은 스팀발생기의 제 1 실시예를 나타내는 사시도이다. 또한, 도 3은 제 1 실시예에 따른 스팀 발생기를 보다 상세하게 보여주는 부분 사시도이다. 1 is a perspective view showing a dryer having a steam generator according to the present invention, Figure 2 is a perspective view showing a first embodiment of the steam generator. 3 is a partial perspective view showing in more detail the steam generator according to the first embodiment.
도 1를 참조하면, 본 발명에 따른 의류 건조기(100)는 외관을 이루는 전면 커버(101)와, 측면 커버(102), 후면커버(미도시) 및 탑플레이트(미도시)를 포함하는 본체와 상기 본체 내에 설치되는 드럼(120)을 갖는다. 상기 드럼(120)는 상기 본체 내에 회전가능하게 설치되며, 건조될 세탁물을 수용한다. 또한, 상기 의류 건조기(100)는 상기 전면 커버(101)의 전면에 장착되어 상기 드럼(120)의 개구부를 개폐하는 도어(104)와, 상기 전면 커버(101)의 상측부에 구비되며, 건조 조건을 입력하는 각종 버튼들이 구비된 컨트롤 패널(103)을 포함한다. 상기 드럼(120)은 전단부 및 후단부가 개방된 중공 실린더 형상을 갖는다. 즉, 상기 드럼(120)의 전단부 및 후방부에는 각각 개구부가 형성된다. 이러한 드럼(120)은 상기 본체내부의 전방부에 설치되는 프론트 서포터(미도시)와 본체 내부의 후방부에 설치되는 리어 서포터(122) (도 2참조)에 의해 지지된다. 보다 상세하게는, 상기 프론트 서포터에는 드럼 (120) 전단부의 개구부와 연통하는 개구부가 형성되며, 이의 개구부의 외주부에는 림이 형성된다. 상기 프론트 서포터의 림의 내주면은 상기 드럼(120)의 전단부의 외주면을 회전 가능하게 지지한다. 그리고, 상기 드럼(120)의 전단부의 개구부는 상기 프론트 서포터의 개구부를 통해 본체외부와 연통하며, 상기 도어(104)에 의해 개폐된다. 사용자는 도어(104)를 개방하고 상기 프론트 서포터와 드럼(120) 전단부의 개구부들을 통해 드럼(120)내에 세탁물을 넣을 수 있다. 또한, 상기 리어 서포터(122)는 리세스를 포함하며, 상기 리세스의 내주면은 상기 드럼(120)의 후단부의 외주면을 회전가능하게 지지한다. 따라서, 상기 프론트 서포터 및 리어 서포터(122)는 정지된 반면, 상기 드럼(120)은 이들 정지된 서포터들에 의해 상대적으로 회전가능하게 지지된다. Referring to FIG. 1, the clothes dryer 100 according to the present invention includes a main cover including a front cover 101, a side cover 102, a rear cover (not shown), and a top plate (not shown) forming an external appearance. It has a drum 120 installed in the main body. The drum 120 is rotatably installed in the main body and accommodates laundry to be dried. In addition, the clothes dryer 100 is mounted on the front of the front cover 101, the door 104 for opening and closing the opening of the drum 120, and is provided on the upper side of the front cover 101, drying The control panel 103 is provided with various buttons for inputting a condition. The drum 120 has a hollow cylinder shape with open front and rear ends. That is, openings are formed in front and rear portions of the drum 120, respectively. The drum 120 is supported by a front supporter (not shown) installed in the front part of the main body and a rear supporter 122 (see FIG. 2) installed in the rear part of the main body. More specifically, the front supporter is formed with an opening in communication with the opening of the front end of the drum 120, the rim is formed on the outer peripheral portion of the opening. The inner circumferential surface of the rim of the front supporter rotatably supports the outer circumferential surface of the front end portion of the drum 120. The opening of the front end of the drum 120 communicates with the outside of the main body through the opening of the front supporter, and is opened and closed by the door 104. The user may open the door 104 and put laundry into the drum 120 through openings in the front supporter and the front end of the drum 120. In addition, the rear supporter 122 includes a recess, and the inner circumferential surface of the recess rotatably supports the outer circumferential surface of the rear end of the drum 120. Thus, the front supporter and the rear supporter 122 are stationary, while the drum 120 is relatively rotatably supported by these stationary supporters.
또한, 도면에서 건조기 내부의 구조가 상세히 도시되어 있지는 않지만, 상기 의류건조기는 상기 드럼(120) 내부의 공기가 순환하도록 하는 송풍팬을 가지며, 상기 건조기의 하부에는, 건조기 내부를 순환하는 공기와 열교환하여 순환 공기 중에 포함된 수분을 응축시키는 열교환기가 구비되어 있다. 상기 드럼(120)에서 배출된 공기는 상기 송풍팬에 의해서 다시 드럼(120) 내부로 유입되는데, 이때 순환하는 공기를 안내하여, 드럼에서 배출된 공기가 다시 드럼으로 유입되도록 덕트가 구비된다. 앞서 설명된 바와 같이, 상기 프론트 서포터 및 리어 서포터(122)가 고정된 상태이므로, 상기 덕트의 흡입부와 토출부는 회전하는 드럼(120)에 연결될 수 없으므로, 이러한 고정된 프론트 서포터 및 리어 서포터(122)에 상기 드럼(120)의 내부와 연통되도록 연결될 수 있다. 또한, 드럼(120)으로 유입되는 공기를 가열하여 뜨거운 공기를 만들어주는 히터 어셈블리(200)가 덕트 내부에 구비된다. 상기 덕트는 도 2에 도시된 바와 같이, 중간 덕트(140) 및 후방덕트(130)을 포함할 수 있다. 상기 중간 덕트(140)에는 상기 히터 어셈블리(200) 뿐만 아니라 열교환기, 송풍팬과 같은 여러가지 부속장치들이 설치될 수 있다. 도 2는 히터 어셈블리(200)만을 수용하는 중간덕트(140)의 일부만을 보여주며, 이러한 히터 어셈블리(200)와 유사하게 열교환기 및 송풍팬도 상기 중간덕트(140)내에 설치될 수 있다. 상기 후방덕트(130)는 상기 중간덕트(140)와 연결되며, 다시 상기 드럼(120)과 연통하도록 상기 리어 서포터(122)에 연결된다. 보다 상세하게는, 상기 리어 서포터(122)는 개방된 드럼(120)의 후단부와 연통하는 개구부(123)을 가지며, 상기 후방덕트(130)의 끝단은 상기 개구부(123)에 연결된다. 따라서, 상기 후방덕트(130)는 중간덕트(140)내의 열교환기에 의해 건조되고 다시 상기 히터 어셈블리(200)에 의해 가열된 공기를 상기 개구부(123)을 통해 상기 드럼(120)내에 공급하게 된다. 또한, 상기 중간덕트(140)의 앞쪽에는 비록 도시되지 않았으나 전방덕트가 연결되며, 세탁물의 건조에 의해 상대적으로 높은 습도와 낮은 온도를 갖는 드럼(120)내의 공기를 흡입한다. 상기 히터 어셈블리(200)는 전기저항열을 이용하는 저항코일히터로 이루어질 수도 있고, 가스를 연소시켜서 열을 발생시키는 버너로 이루어질 수도 있다. 이하에서는 저항코일히터를 이용하는 경우를 예로 들어서 설명하나 본 발명의 실시예가 버너에도 적용될 수 있는 것은 당연하다. 또한, 상술된 덕트구조 및 열교환기 및 히터 어셈블리의 배치는 응축식 건조기에 기초하여 설명되었으나, 본 발명의 건조기는 배기식 건조기에 따른 덕트 구조 및 이에 따른 관련 부품의 배치를 가질 수 있다. 실제적으로 응축식 건조기 및 배기식 건조기는 공기를 순환하는 방식에 있어서만 서로 구별되므로, 아래에서 설명될 스팀 발생기 및 관련 구성들은 추가적인 변형없이 배기식 건조기에도 적용될 수 있음은 이해가능하다. In addition, although the internal structure of the dryer is not shown in detail in the drawing, the clothes dryer has a blower fan through which the air inside the drum 120 circulates. It is provided with a heat exchanger to condense the moisture contained in the circulating air. The air discharged from the drum 120 is introduced into the drum 120 again by the blowing fan. At this time, a duct is provided to guide the air circulating so that the air discharged from the drum flows back into the drum. As described above, since the front supporter and the rear supporter 122 are fixed, the suction part and the discharge part of the duct cannot be connected to the rotating drum 120, and thus the fixed front supporter and the rear supporter 122 ) May be connected to communicate with the inside of the drum (120). In addition, a heater assembly 200 for heating the air introduced into the drum 120 to make hot air is provided in the duct. The duct may include an intermediate duct 140 and a rear duct 130, as shown in FIG. The intermediate duct 140 may be provided with various accessories such as a heat exchanger and a blower fan as well as the heater assembly 200. FIG. 2 shows only a part of the intermediate duct 140 which receives only the heater assembly 200, and similarly to the heater assembly 200, a heat exchanger and a blowing fan may also be installed in the intermediate duct 140. The rear duct 130 is connected to the intermediate duct 140 and is connected to the rear supporter 122 so as to communicate with the drum 120 again. More specifically, the rear supporter 122 has an opening 123 in communication with the rear end of the open drum 120, the end of the rear duct 130 is connected to the opening 123. Therefore, the rear duct 130 is supplied by the heat exchanger in the intermediate duct 140 and the air heated by the heater assembly 200 again into the drum 120 through the opening 123. In addition, the front duct is connected to the front of the intermediate duct 140, although not shown, and sucks air in the drum 120 having a relatively high humidity and a low temperature by drying the laundry. The heater assembly 200 may be formed of a resistance coil heater using electric resistance heat, or may be formed of a burner that generates heat by burning gas. Hereinafter, a case of using a resistance coil heater will be described as an example, but it is obvious that an embodiment of the present invention can be applied to a burner. In addition, while the above-described duct structure and the arrangement of the heat exchanger and heater assembly have been described based on the condensation type dryer, the dryer of the present invention may have the arrangement of the duct structure according to the exhaust type dryer and thus related parts. In practice, the condensation dryer and the exhaust dryer are distinguished from each other only in the manner of circulating the air, so it is understood that the steam generator and related configurations described below can be applied to the exhaust dryer without further modification.
도 2에서는 본 발명의 제 1 실시예에 따른 스팀 발생기를 다른 관련 부품들과 함께 단순화하여 간략하게 도시하였다. 이를 보면, 상기 건조기 본체의 전면 커버(101)로부터 인출가능하게 삽입되는 드로워(110)가 구비되고, 상기 드로워(110)에는 물을 저장하는 저장조에 해당하는 카트리지(113)가 탈착가능하게 장착된다. 상기 드로워(110)는 건조기의 전면 커버(101) 상부에 설치되어, 상기 본체의 앞쪽으로 인출가능하도록 설치되는데 바람직하게는 전면 커버 상부의 컨트롤 패널(103) 측면에 설치된다. 상기 카트리지(113)에는 손잡이(114)가 제공되며, 상기 손잡이(114)를 이용하여 사용자는 인출된 드로워(110)로부터 상기 카트리지(113)을 용이하게 탈착하거나 이에 장착할 수 있다. 또한, 의류 건조기 하부에 위치한 중간덕트(140)내에는 드럼 내부로 유입되는 공기를 가열하기 위한 히터 어셈블리(200)가 구비된다. 그리고, 상기 중간덕트(140)의 내부에 상기 히터어셈블리(200)에 인접하게 스팀 발생기(230)가 제공되며, 히터 어셈블리로부터 열을 받아서 물을 스팀으로 변환시킨다. 그리고, 상기 카트리지(113)와 상기 스팀발생기(230)는 급수호스(116)에 의해 서로 연결되고, 상기 급수호스(116)에는 펌프(115)가 구비되어 있다. 상기 급수호스(116)를 통해서 상기 카트리지(113)에 저장된 물이 상기 스팀발생기(250)로 공급되어 스팀으로 변하게 되고, 상기 펌프(115)는 상기 급수호스(116)를 개폐하여 상기 카트리지에서 스팀발생기로 공급되는 물의 양을 조절한다. 즉, 스팀발생이 필요한 시점에 상기 펌프(115)가 급수호스(116)를 개방하여 스팀발생기(230)로 물을 공급하면, 스팀발생기에서는 공급된 물이 스팀으로 변하게 된다. In FIG. 2, the steam generator according to the first embodiment of the present invention is simplified and simplified together with other related components. In this regard, a drawer 110 is provided to be pulled out from the front cover 101 of the dryer body, and the drawer 110 is detachably provided with a cartridge 113 corresponding to a reservoir for storing water. Is mounted. The drawer 110 is installed above the front cover 101 of the dryer, and is installed to be pulled out toward the front of the main body. Preferably, the drawer 110 is installed on the side of the control panel 103 at the top of the front cover. The cartridge 113 is provided with a handle 114, and by using the handle 114, the user can easily detach or mount the cartridge 113 from the drawn drawer 110. In addition, a heater assembly 200 for heating the air flowing into the drum is provided in the intermediate duct 140 located below the clothes dryer. In addition, a steam generator 230 is provided inside the intermediate duct 140 adjacent to the heater assembly 200, and receives heat from the heater assembly to convert water into steam. The cartridge 113 and the steam generator 230 are connected to each other by a water supply hose 116, and the pump 115 is provided at the water supply hose 116. The water stored in the cartridge 113 is supplied to the steam generator 250 through the water supply hose 116 to be changed to steam, and the pump 115 opens and closes the water supply hose 116 to steam the cartridge. Adjust the amount of water supplied to the generator. That is, when the pump 115 opens the water supply hose 116 and supplies water to the steam generator 230 at the point where steam generation is required, the supplied water is changed to steam in the steam generator.
본 실시예에서는 스팀발생기(230)로 공급되는 물의 양을 조절하기 위해서 펌프를 사용하는 예를 설명하였으나, 반드시 이에 한정되는 것은 아니며 상기 급수호스(116)에 밸브가 구비되어 있어서 상기 호스를 개폐함으로써 스팀발생기로 공급되는 물의 양을 조절할 수도 있을 것이다. 그리고, 도 2에 도시되어 있듯이 본 실시예에서 카트리지는 건조기 전면에서 보아 좌측 상부에 구비되고, 스팀발생기는 우측 하부에 구비되어 있어서, 상기 카트리지와 상기 스팀발생기 사이의 높이차를 이용함으로써, 스팀발생기로 공급되는 물을 밸브에 의해 조절할 수 도 있다. In the present embodiment, an example in which a pump is used to adjust the amount of water supplied to the steam generator 230 has been described. However, the present invention is not limited thereto, and the water supply hose 116 is provided with a valve to open and close the hose. The amount of water supplied to the steam generator may be controlled. And, as shown in Figure 2, in the present embodiment, the cartridge is provided on the upper left side as seen from the front of the dryer, the steam generator is provided on the lower right, by using the height difference between the cartridge and the steam generator, The water to be supplied can also be controlled by a valve.
도 3에서는 본 발명의 제 1 실시예에 따른 스팀 발생기(230)가 히터 어셈블리(200)와 함께 보다 상세하게 도시되어 있다. 먼저 상기 히터 어셈블리(200)는 기본적으로 가열 유닛을 포함하여, 상기 가열유닛은 지지체(201)와 상기 지지체(201)에 감겨진 저항코일(202)로 이루어진다. 상기 지지체(201)은 전기 및 열에 대한 절연물질로 이루어지며, 상기 저항코일(202)는 전기저항을 이용하여 열을 발생시킨다. 이와 같은 다수개의 가열유닛들이 모여져 하나의 히터 어셈블리(200)를 형성한다. 상기 히터 어셈블리(200)는 도 5에 도시된 바와 같이, 상기 가열유닛들이 끼워지는 지지판(203)을 더 가질 수도 있으며, 이러한 지지판(203)에 의해 가열유닛들은 보다 안정적으로 덕트내에 고정될 수 있다. 그리고, 덕트(140)의 내부에는 히터 어셈블리(200)의 열을 전달받아서 물을 스팀으로 변화시키는 스팀발생기(230)가 구비된다. 상기 스팀발생기(230)는 소정의 지름을 가진 긴 금속관이며, 히터 어셈블리(200)의 일측에 위치하는데, 본 실시예에서는 히터 어셈블리(200)의 상측에서 지그재그 형태로 배치되어 있다. 그러나, 스팀발생기가 배치되는 형상은 이에 한정되지 않고, 히터 어셈블리(200)의 상측과 양측면에 지그재그 형상으로 배치될 수도 있다. 그리고, 상기 금속관으로 된 스팀발생기는 동관으로 제작되는 것이 열전달 면에서 유리하다.In FIG. 3, the steam generator 230 according to the first embodiment of the present invention is shown in more detail with the heater assembly 200. First, the heater assembly 200 basically includes a heating unit, and the heating unit includes a support 201 and a resistance coil 202 wound around the support 201. The support 201 is made of an insulating material against electricity and heat, and the resistance coil 202 generates heat using electrical resistance. Such a plurality of heating units are gathered to form one heater assembly 200. The heater assembly 200 may further have a support plate 203 to which the heating units are fitted, as shown in FIG. 5, and the heating units may be more stably fixed in the duct by the support plate 203. . And, the inside of the duct 140 is provided with a steam generator 230 for receiving the heat of the heater assembly 200 to change the water into steam. The steam generator 230 is a long metal tube having a predetermined diameter and is located on one side of the heater assembly 200. In the present embodiment, the steam generator 230 is disposed in a zigzag form on the upper side of the heater assembly 200. However, the shape in which the steam generator is disposed is not limited thereto, and may be disposed in a zigzag shape on the upper side and both side surfaces of the heater assembly 200. In addition, it is advantageous in terms of heat transfer that the steam generator made of the metal tube is made of copper tube.
그리고, 상기 스팀발생기(230)의 양단부에는, 상기 덕트의 외부로 돌출된 유입구(231)와 유출구(232)가 구비된다. 상기 유입구(231)는 상기 카트리지(113)로부터 물이 스팀발생기 내부로 유입되는 통로이며, 상기 유출구(232)는 스팀발생기에서 생성된 스팀이 배출되는 통로이다. 상기 유입구에는 급수호스(116)가 연결되어 상기 카트리지(113)에 저장되어 있던 물이 스팀발생기로 흘러들어오고, 상기 유출구(232)에는 스팀호스(117)가 연결되어서 스팀발생기에서 발생한 스팀이 배출되어 나간다. 상기 스팀호스(117)는 내부에 흘러가는 스팀의 온도를 고려하면, 금속으로 된 파이프로 이루어지는 것이 바람직하다. 상기 스팀발생기(230)는 상기 히터 어셈블리에서 발생한 열을 공기를 통한 대류를 의해 간접적으로 전달받거나 혹은 복사를 통해서 직접적으로 전달받아서 내부에 저장된 물을 가열하여 스팀으로 변환시킨다. 앞서 언급된 바와 같이, 상기 스팀 발생기(230)는 작은 직경의 금속관이므로 유동되는 물의 양이 적다. 또한, 상기 스팀 발생기(230)는 지그재그로 배치되어 있으므로 상당히 넓은 전열면적을 갖는다. 따라서, 스팀 발생기(230)내에 유동하는 소량의 물은 신속하게 가열되어 스팀으로 변환될 수 있다. 스팀발생기는 열전달율을 높이기 위해서 동관으로 제조되거나 알루미늄관으로 제조하는 것이 바람직하다. In addition, both ends of the steam generator 230 are provided with an inlet 231 and an outlet 232 protruding to the outside of the duct. The inlet 231 is a passage through which water is introduced into the steam generator from the cartridge 113, and the outlet 232 is a passage through which steam generated by the steam generator is discharged. A water supply hose 116 is connected to the inlet, and water stored in the cartridge 113 flows into the steam generator, and a steam hose 117 is connected to the outlet 232 to discharge steam generated from the steam generator. It goes out. The steam hose 117 is preferably made of a metal pipe, considering the temperature of the steam flowing therein. The steam generator 230 receives heat generated by the heater assembly indirectly by convection through air or directly through radiation to heat the water stored therein and convert the water into steam. As mentioned above, the steam generator 230 is a small diameter metal tube, so the amount of water flowing is small. In addition, since the steam generator 230 is arranged in a zigzag, it has a considerably large heat transfer area. Thus, a small amount of water flowing in the steam generator 230 can be quickly heated and converted to steam. Steam generators are preferably made of copper tubes or aluminum tubes to increase the heat transfer rate.
상기 스팀호스(117)의 끝단에는 노즐(118)이 구비되어서 상기 드럼(120)으로 스팀을 분사한다. 상기 노즐(118)은 도 2에 도시된 바와 같이, 상기 드럼(120)을 후단에서 지지하는 리어 서포터(122)에 설치될 수 있다. 그리고, 상기 스팀호스(117)의 내부를 유동하는 스팀은 온도가 저하되면 상기 스팀호스(117)의 내벽에 응축되어 맺힐 수 있다. 이것을 방지하기 위해서, 도 2에 보이듯이, 상기 스팀호스(117)는 히터에 의해서 가열된 열풍이 드럼으로 유입되는 통로인 후방덕트(130)의 외벽에 가까이 설치되는 것이 좋다. 바람직하게는 상기 스팀호스(117)는 후방덕트(130)에 부착되어 설치됨으로써 상기 후방덕트(130)로부터 고온의 열을 받을 수 있는 상태가 바람직하다. 또한, 후방덕트의 열을 전달받아서 내부 응축을 방지하기 위해서는, 상기 스팀호스는 열전달율이 양호한 금속파이프 형태로 제작되는 것이 좋다. 그리고, 상기 스팀호스(117)의 끝단에 구비되는 노즐(118)은 건조기 드럼(120)의 후면을 지지하는 리어 서포터(122)에 설치되고, 상기 노즐에서 드럼(120)의 개방된 후단부 통해 드럼 내부로 스팀이 분사된다. A nozzle 118 is provided at the end of the steam hose 117 to inject steam to the drum 120. As shown in FIG. 2, the nozzle 118 may be installed at a rear supporter 122 supporting the drum 120 at a rear end thereof. And, the steam flowing inside the steam hose 117 may be condensed on the inner wall of the steam hose 117 when the temperature is lowered. In order to prevent this, as shown in FIG. 2, the steam hose 117 may be installed near the outer wall of the rear duct 130, which is a passage through which hot air heated by a heater flows into the drum. Preferably, the steam hose 117 is preferably attached to the rear duct 130 to receive high temperature heat from the rear duct 130. In addition, in order to prevent internal condensation by receiving heat from the rear duct, the steam hose is preferably made of a metal pipe having a good heat transfer rate. In addition, the nozzle 118 provided at the end of the steam hose 117 is installed in the rear supporter 122 supporting the rear of the dryer drum 120, through the open rear end of the drum 120 in the nozzle Steam is injected into the drum.
도 4에서는 상기 노즐(118)이 설치되는 다른 실시예를 도시하고 있다. 도 4에서도, 상기 스팀호스(117)는 내부를 통과하는 스팀이 응축되는 것을 방지하기 위해서 상기 후방덕트(130)에 밀착되어 설치되어 있다. 그리고, 상기 노즐(118)은 상기 후방덕트(130)의 상측에 설치되고, 또한 상기 드럼으로 열풍이 유입되는 입구, 즉 개구부(123) 가까이에서 상기 노즐이 설치된다. 이러한 구성에 의해서, 상기 스팀호스(117)와 상기 노즐(118)은 후방덕트(130)으로부터 열을 계속하여 전달받을 수 있고, 따라서 스팀호스 내부의 스팀이 유동하는 과정에서 응축되는 것을 방지할 수 있다. 4 shows another embodiment in which the nozzle 118 is installed. In FIG. 4, the steam hose 117 is installed in close contact with the rear duct 130 to prevent condensation of steam passing through the steam hose 117. In addition, the nozzle 118 is installed above the rear duct 130, and the nozzle is installed near the inlet, ie, the opening 123, through which hot air flows into the drum. With this configuration, the steam hose 117 and the nozzle 118 can continue to receive heat from the rear duct 130, and thus prevent the steam inside the steam hose from condensing during the flow. have.
도 5는 스팀발생기의 제 2 실시예를 나타내는 사시도이며, 도 6은 제 2 실시예에 따른 스팀 발생기를 보다 상세하게 나타내는 부분 사시도이다. 이들 도면을 참조하여 스팀 발생기의 제 2 실시예를 상세하게 설명하면 다음과 같다. 5 is a perspective view showing a second embodiment of the steam generator, Figure 6 is a partial perspective view showing in more detail the steam generator according to the second embodiment. A second embodiment of the steam generator will be described in detail with reference to these drawings.
도 3 및 도 6에 각각 도시된 바와 같이, 상기 중간덕트(140)내에서 공기는 상기 히터 어셈블리(200)의 전방으로 먼저 유입되며 상기 히터 어셈블리(200)를 통과하는 동안 히터 어셈블리(200)의 가열 유닛들에 의해 순차적으로 가열된다. 이 후, 가열된 공기는 상기 히터 어셈블리(200)의 후방으로 부터 배출된다. 이러한 가열과정을 고려할 때, 가열되지 않은 상태로 유입된 공기는 상기 히터 어셈블리(200)의 후방부에 비해 이의 전방부로부터 많은 열을 흡수하게 된다. 따라서, 상기 히터 어셈블리(200)의 후방부가 상대적으로 가열에 이용될 수 있는 더 많은 열을 보유하게 된다. 반면, 실제적으로 상기 히터 어셈블리(200)의 후방부에서 공기의 가열이 완료되므로, 후방부의 공기는 전방부의 공기에 비해 현저하게 높은 온도를 갖는다. 따라서, 후방부의 공기는 전방부의 공기에 비해 다른 대상물을 가열할 수 있는 더 많은 열 에너지를 갖는다. 이러한 이유로, 상기 히터 어셈블리(200)의 후방부, 즉 공기 배출부는 그 주변의 높은 온도를 갖는 공기를 이용하여 대류에 의해 간접적으로 상기 스팀 발생기(230,330)에 열에너지를 공급할 수 있는 높은 능력 및 히터 어셈블리(200)로부터 열 에너지 복사에 의해 직접적으로 열 에너지를 공급할 수 있는 높은 능력 둘 다를 갖는다. 따라서, 제 2 실시예에 따른 스팀 발생기(330)는 상기 히터 어셈블리(200)의 후방부, 즉 공기 배출부 주위에만 배치되도록 구성된다. 이러한 제 2 실시예에 따른 스팀 발생기(330)는 히터 어셈블리 후방부(배출부)의 높은 가열능력을 이용하여 효과적이고 효율적으로 스팀을 생성할 수 있다. 또한, 히터 어셈블리(200)의 전체에 걸쳐 연장되는 제 1 실시예의 스팀발생기(220)에 비해, 상기 스팀 발생기(330)는 더욱 단순하고 제조에 용이한 구조를 가지며, 이에 따라 제조 비용이 감소되며 생산성이 증가될 수 있다. As shown in FIGS. 3 and 6, in the intermediate duct 140, air is first introduced to the front of the heater assembly 200, and the air of the heater assembly 200 is passed through the heater assembly 200. It is heated sequentially by the heating units. Thereafter, the heated air is discharged from the rear of the heater assembly 200. In consideration of this heating process, the air introduced in the unheated state absorbs a lot of heat from the front portion thereof compared with the rear portion of the heater assembly 200. Thus, the rear portion of the heater assembly 200 relatively retains more heat that can be used for heating. On the other hand, since the heating of the air at the rear part of the heater assembly 200 is actually completed, the air at the rear part has a significantly higher temperature than the air at the front part. Thus, the air at the rear has more thermal energy to heat other objects than the air at the front. For this reason, the rear part of the heater assembly 200, that is, the air outlet part, has a high ability and heater assembly to supply heat energy indirectly to the steam generators 230 and 330 by convection using air having a high temperature around it. Both have a high ability to supply thermal energy directly by thermal energy radiation from 200. Accordingly, the steam generator 330 according to the second embodiment is configured to be disposed only around the rear portion of the heater assembly 200, that is, around the air discharge portion. The steam generator 330 according to the second embodiment may generate steam efficiently and efficiently by using the high heating capacity of the rear part (discharge part) of the heater assembly. In addition, compared to the steam generator 220 of the first embodiment extending throughout the heater assembly 200, the steam generator 330 has a simpler and easier to manufacture structure, thereby reducing the manufacturing cost Productivity can be increased.
또한, 보다 높은 가열 효율을 갖도록 상기 스팀 발생기(330)는 상기 히터 어셈블리(200)를 감싸도록 구성될 수 있다. 보다 상세하게는, 도 6에 잘 나타나는 바와 같이, 상기 스팀 발생기(330)는 기본적으로 상기 히터어셈블리(200)의 후방부(즉, 배출부)의 상부 위쪽에 배치되는 제 1 발생기(331)를 갖는다. 즉, 상기 제 1 발생기(331)은 상기 후방부(배출부)의 상부표면으로부터 소정간격으로 이격되어 배치된다. 또한, 상기 스팀 발생기(330)는 상기 히터 어셈블리(200)의 후방부(배출부)의 하부 아래쪽에 배치되는 제 2 발생기(332)를 가질 수 있다. 바꿔 말하면, 상기 제 2 발생기(332)는 상기 후방부(배출부)의 하부표면으로부터 소정간격으로 이격되어 배치된다. 이러한 제 1 및 제 2 발생기(331,332)는 가장 큰 가열능력을 갖는 히터 어셈블리의 후방부 상부 및 하부 둘다를 이용함으로써 가열효율을 크게 증가시킬 수 있다. 더 나아가, 상기 스팀 발생기(330)는 상기 제 1 발생기 및 상기 제 2 발생기(331,332)를 연결하며, 상기 히터 어셈블리(200) 후방부의 측부에 인접하게 배치되는 제 3 발생기(333)를 가질 수 있다. 이러한 제 3 발생기(333)는 상기 히터 어셈블리(200)의 후방부의 좌측부 또는 우측부에 인접하게 배치될 수 있다. 그러나, 상기 제 3 발생기(333)를 도시된 바와 같이, 가장 높은 온도의 공기가 직접 배출되는 히터 어셈블리의 후방부(배출부)의 측부, 즉 후단부에 인접하게 배치시키는 것이 가열효율을 높이는 데 보다 유리하다. 상기 스팀발생기(330), 즉, 제 1-3 발생기(331,332,333)은 앞서 설명된 제 1 실시예와 마찬가지로 마주하는 히터 어셈블리(200)의 표면에 평행하게 지그재그로 절곡되는 금속관으로 이루어진다. 따라서, 유입구(335)를 통해 물이 공급되면, 물은 상기 제 1-3 발생기(331-333)을 거치면서 즉시 스팀으로 변환되며, 유출구(336)을 통해 배출된다. In addition, the steam generator 330 may be configured to surround the heater assembly 200 to have a higher heating efficiency. More specifically, as shown in FIG. 6, the steam generator 330 basically includes a first generator 331 disposed above the rear portion (ie, the discharge portion) of the heater assembly 200. Have That is, the first generator 331 is disposed spaced apart from the upper surface of the rear portion (discharge portion) by a predetermined interval. In addition, the steam generator 330 may have a second generator 332 disposed below the rear portion (discharge portion) of the heater assembly 200. In other words, the second generator 332 is disposed spaced apart from the lower surface of the rear part (discharge part) at a predetermined interval. The first and second generators 331 and 332 can greatly increase the heating efficiency by using both the upper and lower rear portions of the heater assembly having the largest heating capability. Furthermore, the steam generator 330 may have a third generator 333 which connects the first generator and the second generators 331 and 332 and is disposed adjacent to the side of the rear part of the heater assembly 200. . The third generator 333 may be disposed adjacent to the left side or the right side of the rear portion of the heater assembly 200. However, as shown in the drawing, the third generator 333 is disposed adjacent to the rear side (that is, the rear end) of the heater assembly where the highest temperature air is directly discharged, that is, to increase the heating efficiency. More advantageous. The steam generator 330, that is, the first to third generators 331, 332, 333, is made of a metal tube bent in a zigzag parallel to the surface of the heater assembly 200 facing in the same manner as in the first embodiment described above. Accordingly, when water is supplied through the inlet 335, the water is immediately converted into steam while passing through the first to third generators 331-333 and discharged through the outlet 336.
앞서 설명된 내용을 고려할 때, 이와 같은 제 1-3 발생기(331,332,333)에 의해 상기 스팀 발생기(330)는 전열면적을 증가시키면서 상기 히터 어셈블리(200)의 가장 높은 가열능력을 갖는 부위를 감싸게 된다. 이러한 이유로, 제 2 실시예에 따른 스템발생기(330)에 있어서 가열 효율이 극대화된다. In view of the above description, the first and third generators 331, 332, and 333 surround the portion having the highest heating capacity of the heater assembly 200 while increasing the heat transfer area. For this reason, the heating efficiency in the stem generator 330 according to the second embodiment is maximized.
상기 제 1 실시예의 스팀발생기(220)와 마찬가지로, 상기 유출구(336)가 덕트외부로 돌출되며, 이러한 유출구(336)에 노즐(118)과 함께 스팀호스(117)가 연결될 수 있다, 따라서, 배출된 스팀은 스팀 호스 (117) 및 노즐(118)을 통해 드럼(120)내부로 공급될 수 있다. 그러나, 이미 앞서 설명된 바와 같이, 이러한 스팀 호스(117)은 덕트외부로 노출되어 있으므로, 온도저하에 의해 스팀이 응축되어, 스팀의 량과 품질이 저하될 수 있다. 따라서,도 5에 도시된 바와 같이, 제 2 실시예에 따른 스팀 발생기(220)는 보조 발생기(334)를 더 포함할 수 있다. 상기 보조 발생기(334)는 상기 스팀발생기(320), 정확하게는 유출구(336)과 연결되며, 상기 덕트, 즉 후방 덕트(130)내에 배치된다. 보다 상세하게는, 상기 보조 발생기(334)는 상기 히터 어셈블리(200)에서 토출된 가열된 공기의 유동방향을 따라 상기 히터 어셈블리(200)로부터 멀어지게 연장된다. 즉, 상기 보조 발생기(334)는 상기 스팀 발생기(330)로부터 상기 후방덕트(130)를 따라 추가적으로 연장되며, 또한 상기 드럼(210)을 향해, 정확하게는 드럼(210)과 연통되는 덕트의 배출구를 향해 연속적으로 연장된다. 상기 보조 발생기(334)는 제 1-3발생기와 마찬가지로 금속관으로 이루어질 수 있으며, 도면에서 일직선으로 연장되나 전열면적을 높이기 위해 지그재그로 절곡될 수도 있다. 스팀 발생기(330)에서 배출된 스팀은 상기 보조 발생기(334)를 통과하면서 덕트내부에서 유동하는 뜨거운 공기에 의해 재가열되며, 응축되지 않는다. 따라서, 이러한 보조 발생기(334)에 의해 드럼(120)에 실제적으로 공급되는 스팀의 량 및 품질이 크게 증가될 수 있다. Like the steam generator 220 of the first embodiment, the outlet 336 protrudes out of the duct, and the steam hose 117 together with the nozzle 118 may be connected to the outlet 336. The steam may be supplied into the drum 120 through the steam hose 117 and the nozzle 118. However, as described above, since the steam hose 117 is exposed to the outside of the duct, steam is condensed by the temperature decrease, and thus the quantity and quality of the steam may be reduced. Thus, as shown in FIG. 5, the steam generator 220 according to the second embodiment may further include an auxiliary generator 334. The auxiliary generator 334 is connected to the steam generator 320, precisely the outlet 336, and is disposed in the duct, ie the rear duct 130. More specifically, the auxiliary generator 334 extends away from the heater assembly 200 along the flow direction of the heated air discharged from the heater assembly 200. That is, the auxiliary generator 334 further extends along the rear duct 130 from the steam generator 330, and also toward the drum 210, an outlet of the duct that is in communication with the drum 210. Extending continuously. The auxiliary generator 334 may be made of a metal tube like the first to third generators, and may extend in a straight line in the drawing, but may be bent in a zigzag to increase the heat transfer area. Steam discharged from the steam generator 330 is reheated by the hot air flowing in the duct while passing through the auxiliary generator 334, and does not condense. Therefore, the amount and quality of steam actually supplied to the drum 120 by this auxiliary generator 334 can be greatly increased.
한편, 도 5에 도시된 바와 같이, 상기 보조 발생기(334)의 끝단부는 후방덕트(130)을 관통하여 외부로 연장될 수 있으며, 상기 끝단부에 스팀을 배출하는 유출구(337)이 형성될 수 있다. 이러한 경우, 상기 제 1 실시예의 스팀발생기(220)와 마찬가지로 스팀 호스(117)이 연결될 수 있으며, 이러한 스팀 호스(117)의 끝단에 노즐(118)이 제공된다. 상기 노즐(118)은 도 2에 도시된 바와 동일하게 상기 드럼(120)의 후단부를 회전가능하게 지지하는 리어 서포터(122)에 설치되거나 또는 상기 리어 서포터의 개구부(123)에 인접하게 상기 후방덕트(130)에, 보다 바람직하게는 상기 후방덕트(130)의 드럼과 연통되는 부위에 설치될 수 있다. 다른 한편, 도 5에 도시된 것과 다르게 상기 보조 발생기(334)의 끝단부가 덕트 외부로 돌출되지 않고, 상기 보조 발생기(334) 자체가 상기 후방덕트(130)를 따라 드럼과 연통되는 덕트의 배출구, 즉 개구부(123)까지 연장될 수 있다. 이러한 경우, 노즐(118)이 상기 배출구에서 드럼 내부로 스팀을 분사도록 상기 보조발생기(334)의 끝단에 장착될 수 있다. On the other hand, as shown in Figure 5, the end of the auxiliary generator 334 may extend through the rear duct 130 to the outside, the outlet 337 for discharging steam may be formed in the end have. In this case, like the steam generator 220 of the first embodiment, the steam hose 117 may be connected, and the nozzle 118 is provided at the end of the steam hose 117. The nozzle 118 is installed in the rear supporter 122 rotatably supporting the rear end of the drum 120 as shown in FIG. 2 or the rear duct adjacent to the opening 123 of the rear supporter. More preferably, 130 may be installed at a portion communicating with the drum of the rear duct 130. On the other hand, unlike the end of the auxiliary generator 334 does not protrude out of the duct unlike shown in Figure 5, the outlet of the duct that the auxiliary generator 334 itself is in communication with the drum along the rear duct 130, That is, it may extend to the opening 123. In this case, a nozzle 118 may be mounted at the end of the auxiliary generator 334 to inject steam from the discharge port into the drum.
또한, 상기 제 1 실시예의 스팀 발생기(220)와 동일하게 상기 유입구(335)는 상기 드로워(110)에 탈착가능하게 설치된 상기 카트리지(113)로부터 물이 스팀발생기 내부로 유입되도록 상기 급수호스(116)와 연결된다. 또한, 상기 스팀발생기(330)는 마찬가지로 알루미늄관 또는 동관으로 이루어질 수 있다. In addition, similar to the steam generator 220 of the first embodiment, the inlet 335 is the water supply hose so that the water flows into the steam generator from the cartridge 113 detachably installed in the drawer (110) 116). In addition, the steam generator 330 may likewise be made of an aluminum tube or a copper tube.
이하에서는 상술된 스팀발생기를 갖는 건조기의 건조과정에 대해서 설명한다.Hereinafter, a drying process of the dryer having the above-described steam generator will be described.
먼저 사용자가 세탁물을 상기 드럼(120)에 투입한 후, 상기 컨트롤패널의 입력부를 통하여 스팀 건조 코스를 입력하여 건조 과정이 시작되면, 건조기 드럼(120) 내부로 히터 어셈블리(230)에 의해 가열된 뜨겁고 건조한 공기가 유입되어 의류를 가열하여 건조하게 된다. 그리고, 건조 중에 또는 건조가 완료된 후 드럼 내부로 스팀을 분사할 시점이 되면, 상기 펌프(115)가 작동하여 상기 카트리지(113)에 저장된 물이 상기 급수호스(116)를 통해서 상기 스팀발생기(230,330)로 공급된다. 공급된 물은 상기 히터 어셈블리(200)의 열을 전달받아 상기 스팀발생기(220,230)내에서 짧은 순간에 스팀으로 변한다. 그리고, 상기 스팀발생기에서 발생한 스팀은 스팀호스(117) 및 상기 노즐(118)를 통해서 상기 드럼(120) 내부로 분사된다. 이때, 스팀이 분사되어야 하는 시점은, 사용자가 수동으로 컨트롤패널을 조작하여 분사되게 할 수도 있고, 또는 사용자가 선택한 건조 코스에 따라 스팀이 분사될 시점이 건조기 제어부에 의해서 자동으로 결정될 수도 있다. 그리고, 건조기가 복수 회의 건조 과정을 거친 후, 카트리지(113)에 저장된 물이 소모되면, 사용자는 상기 드로워(110)를 당겨서 인출한 후 카트리지(113)에 물을 부어서 보충할 수 있다. 본 발명의 각 실시예들은 이와 같이 히터 어셈블리(200)의 열을 이용하여 스팀을 발생시킴으로써 스팀발생을 위한 별도의 히터가 불필요하다.First, after the user inputs laundry to the drum 120, the steam drying course is input through the input unit of the control panel, and a drying process is started. The heater is heated by the heater assembly 230 into the dryer drum 120. Hot and dry air enters and heats the clothes to dry them. Then, when it is time to inject steam into the drum during or after drying is complete, the pump 115 is operated so that the water stored in the cartridge 113 through the water supply hose 116 the steam generator (230,330) Is supplied. The supplied water is converted into steam in a short moment in the steam generators 220 and 230 by receiving heat from the heater assembly 200. The steam generated by the steam generator is injected into the drum 120 through the steam hose 117 and the nozzle 118. In this case, the time when the steam is to be injected, the user may be controlled by manually operating the control panel, or the time when the steam is injected according to the drying course selected by the user may be automatically determined by the dryer controller. Then, after the dryer goes through a plurality of drying processes, if the water stored in the cartridge 113 is consumed, the user may pull out the drawer 110 and pour water into the cartridge 113 to replenish. Each of the embodiments of the present invention does not require a separate heater for steam generation by generating steam by using the heat of the heater assembly 200 as described above.

Claims (20)

  1. 본체 내부에 회전가능하게 장착되는 드럼;A drum rotatably mounted inside the body;
    상기 드럼으로 공급되는 공기를 안내하는 덕트;A duct for guiding air supplied to the drum;
    상기 덕트내에 제공되며 드럼으로 공급되는 공기를 가열하는 히터어셈블리; 및A heater assembly provided in the duct for heating air supplied to the drum; And
    상기 히터어셈블리에서 발생되는 열을 이용하여 상기 드럼에 공급될 스팀을 발생시키는 스팀발생기;를 포함하는 건조기. And a steam generator for generating steam to be supplied to the drum by using heat generated by the heater assembly.
  2. 제 1 항에 있어서,The method of claim 1,
    상기 스팀 발생기는, 상기 히터어셈블리에 인접하여 지그재그로 절곡되는 금속관이며, 상기 히터어셈블리로부터 복사열 및 대류열을 전달받는 것을 특징으로 하는 건조기. The steam generator is a metal tube bent in a zigzag adjacent to the heater assembly, the dryer characterized in that the radiant heat and convection heat is received from the heater assembly.
  3. 제 2 항에 있어서,The method of claim 2,
    상기 스팀발생기는, 상기 히터 어셈블리의 공기 배출부 주위에 배치되는 것을 특징으로 하는 건조기. And the steam generator is arranged around an air outlet of the heater assembly.
  4. 제 3 항에 있어서, The method of claim 3, wherein
    상기 스팀 발생기는 상기 히터 어셈블리를 감싸도록 형성되는 것을 특징으로 건조기. And the steam generator is formed to surround the heater assembly.
  5. 제 1 항에 있어서,The method of claim 1,
    상기 스팀발생기에 일단이 연결되어 스팀발생기에서 배출되는 스팀을 안내하는 스팀호스; 및 상기 스팀호스의 타단에 구비되고, 상기 드럼으로 스팀을 분사하는 노즐;을 더 포함하는 것을 특징으로 하는 의류건조기.A steam hose having one end connected to the steam generator to guide steam discharged from the steam generator; And a nozzle which is provided at the other end of the steam hose and injects steam to the drum.
  6. 제 5 항에 있어서,The method of claim 5,
    상기 스팀호스는 상기 덕트에 접촉하면서 설치되는 것을 특징으로 하는 의류건조기. And the steam hose is installed while contacting the duct.
  7. 제 1 항에 있어서,The method of claim 1,
    상기 스팀발생기는 알루미늄관 또는 동관으로 이루어지는 것을 특징으로 하는 건조기.The steam generator is characterized in that the dryer made of an aluminum tube or copper tube.
  8. 제 1 항에 있어서,The method of claim 1,
    상기 스팀 발생기는 상기 히터 어셈블리의 상부 위쪽에 배치되는 제 1 발생기 및 상기 히터 어셈블리의 하부 아래쪽에 배치되는 제 2 발생기로 이루어지는 것을 특징으로 하는 건조기. And the steam generator comprises a first generator disposed above the top of the heater assembly and a second generator disposed below the bottom of the heater assembly.
  9. 제 8 항에 있어서,The method of claim 8,
    상기 스팀 발생기는 상기 제 1 발생기 및 상기 제 2 발생기를 연결하며, 상기 히터 어셈블리의 측부에 인접하게 배치되는 제 3 발생기를 포함하는 것을 특징으로 하는 건조기. And the steam generator comprises a third generator connecting the first generator and the second generator and disposed adjacent to the side of the heater assembly.
  10. 제 9 항에 있어서,The method of claim 9,
    상기 제 3 발생기는 가열된 공기가 배출되는 히터 어셈블리의 측부에 인접하게 배치되는 것을 특징으로 하는 건조기. And the third generator is disposed adjacent the side of the heater assembly from which the heated air is discharged.
  11. 제 8 항에 있어서,The method of claim 8,
    상기 스팀 발생기는 상기 스팀 발생기와 연결되도록 상기 덕트내에 배치되며, 상기 덕트내의 가열된 공기를 이용하여 스팀 발생기에서 배출된 스팀을 재가열하는 보조 발생기를 더 포함하는 것을 특징으로 하는 건조기. And the steam generator is disposed in the duct so as to be connected to the steam generator, and further comprises an auxiliary generator for reheating steam discharged from the steam generator by using the heated air in the duct.
  12. 제 11 항에 있어서,The method of claim 11,
    상기 보조 발생기는 상기 덕트를 따라 드럼과 연통되는 덕트의 배출구까지 연장되며, 노즐이 상기 배출구에서 드럼 내부로 스팀을 분사하도록 상기 보조발생기의 끝단에 장착되는 것을 특징으로 하는 건조기. And the auxiliary generator extends along the duct to an outlet of the duct communicating with the drum, and a nozzle is mounted at the end of the auxiliary generator to inject steam from the outlet into the drum.
  13. 제 11 항에 있어서,The method of claim 11,
    상기 보조 발생기는 상기 덕트를 따라 길게 연장되는 금속관으로 이루어지는 것을 특징으로 하는 건조기. And the auxiliary generator comprises a metal tube extending along the duct.
  14. 제 8 항에 있어서,The method of claim 8,
    상기 스팀발생기에 연결되어 스팀발생기에서 배출되는 스팀을 안내하는 스팀호스; 및 상기 스팀호스의 끝단에 제공되며 상기 드럼내에 스팀을 분사하는 노즐;을 더 포함하는 것을 특징으로 하는 건조기.A steam hose connected to the steam generator for guiding steam discharged from the steam generator; And a nozzle provided at an end of the steam hose and spraying steam into the drum.
  15. 제 14 항에 있어서,The method of claim 14,
    상기 노즐은 상기 드럼의 후단부를 회전가능하게 지지하는 리어 서포터 또는 상기 덕트에 설치되는 것을 특징으로 하는 건조기.And the nozzle is installed in the rear supporter or the duct rotatably supporting the rear end of the drum.
  16. 제 14 항에 있어서,The method of claim 14,
    상기 보조 발생기는 상기 덕트를 따라 드럼과 연통되는 덕트의 배출구까지 연장되며, 노즐이 상기 배출구에서 드럼 내부로 스팀을 분사하도록 상기 보조발생기의 끝단에 장착되는 것을 특징으로 하는 건조기. And the auxiliary generator extends along the duct to an outlet of the duct communicating with the drum, and a nozzle is mounted at the end of the auxiliary generator to inject steam from the outlet into the drum.
  17. 제 1 항에 있어서,The method of claim 1,
    상기 스팀발생기에 공급되는 물을 저장하는 저장조; 및 A storage tank for storing water supplied to the steam generator; And
    상기 저장조의 물을 상기 스팀발생기로 안내하는 급수호스;를 더 포함하는 것을 특징으로 하는 건조기.And a water supply hose for guiding water in the reservoir to the steam generator.
  18. 제 17 항에 있어서,The method of claim 17,
    상기 저장조는 본체의 전면 상부에 인출가능하게 설치된 드로워에 탈착가능하게 설치되는 카트리지로 이루어지는 것을 특징으로 하는 건조기.The reservoir is a dryer, characterized in that consisting of a cartridge detachably installed in the drawer installed retractable on the upper front of the main body.
  19. 제 17 항에 있어서,The method of claim 17,
    상기 급수호스를 개폐하기 위한 펌프 또는 밸브를 더 포함하는 것을 특징으로 하는 건조기.Dryer further comprises a pump or valve for opening and closing the water supply hose.
  20. 제 8 항에 있어서,The method of claim 8,
    상기 스팀발생기는 알루미늄관 또는 동관으로 이루어지는 것을 특징으로 하는 건조기.The steam generator is characterized in that the dryer made of an aluminum tube or copper tube.
PCT/KR2010/002041 2009-04-02 2010-04-02 Clothes dryer having a steam generator using a hot air heater WO2010114332A2 (en)

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KR1020090028529A KR20100110117A (en) 2009-04-02 2009-04-02 Clothes dryer with steam generator using hot air heater
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US20120005915A1 (en) 2012-01-12
CN102362028A (en) 2012-02-22
EP2415926A2 (en) 2012-02-08
WO2010114332A3 (en) 2011-01-06

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