KR101549861B1 - ductless dryer - Google Patents

ductless dryer Download PDF

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Publication number
KR101549861B1
KR101549861B1 KR1020080090812A KR20080090812A KR101549861B1 KR 101549861 B1 KR101549861 B1 KR 101549861B1 KR 1020080090812 A KR1020080090812 A KR 1020080090812A KR 20080090812 A KR20080090812 A KR 20080090812A KR 101549861 B1 KR101549861 B1 KR 101549861B1
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KR
South Korea
Prior art keywords
unit
lint
heat exchange
drum
exchange unit
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Application number
KR1020080090812A
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Korean (ko)
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KR20100031929A (en
Inventor
안승표
류병조
김양환
Original Assignee
엘지전자 주식회사
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Priority to KR1020080090812A priority Critical patent/KR101549861B1/en
Publication of KR20100031929A publication Critical patent/KR20100031929A/en
Application granted granted Critical
Publication of KR101549861B1 publication Critical patent/KR101549861B1/en

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Abstract

A ductless dryer is started. The ductless dryers according to the present invention remove moisture contained in the air discharged from a drum in a dryer and adsorb and remove the lint using a heat exchange unit that adsorbs lint or is installed in the circulation unit, Further comprising a filter for filtering the lint contained in the air exhausted from the lint, thereby more completely removing the lint.
Ductless Dryer, Lint, Filter

Description

{Ductless Dryer}
The present invention relates to a cleaning unit for removing lint and a ductless drier having a filter. More particularly, the present invention relates to a ductless dryer for removing lint by adsorbing a lint by using a heat exchange unit, The present invention also relates to a ductless dryer that further includes a filter at the front end of the heat exchange unit to more completely remove the lint.
Generally, a clothes dryer is a device for blowing hot air generated by a heater into a drum to absorb moisture of a drying subject to dry the drying subject, and is a device for absorbing moisture and drying the drying subject, Depending on the method, it is classified into an exhaust type clothes dryer and a condensation type clothes dryer.
The exhaust-type clothes dryer uses a method of exhausting the wet machine exhausted from the drum to the outside of the dryer. However, it requires an exhaust duct to exhaust the evaporated moisture in the drum to the outside, and in particular, since carbon monoxide, which is a combustion product, is exhausted together, it is disadvantageous in that the exhaust duct must be extended to the outside.
On the other hand, the condensable clothes dryer uses a method of condensing moisture from the drum to remove moisture from the heat exchanger, and then re-circulating the moisture-free dry air to the drum again. However, it is not easy to use gas as a heat source because the dry flow forms a closed loop.
The dryer that overcomes the disadvantages of the exhaust type clothes dryer and the condensation type clothes dryer is a ductless dryer. That is, the ductless dryers are advantageous in that they can be maintained at a low cost by using gas as a heat source and do not need a separate exhaust duct extending outdoors.
In such a dryer, as the drying progresses, a lint is generated from the object to be dried, the lint generated in the dryer having the duct causes the duct to be clogged, and the lint generated in the ductless- .
On the other hand, the ductless dryers described above include a filter for filtering the lint contained in the air escaping from the drum. However, the conventional ductless dryers have a problem that the lint can not be completely filtered due to problems such as the type and characteristics of the filter and sealing.
The present invention solves the above-mentioned problems, and provides a ductless dryer that removes a lint by using a heat exchange unit to remove lint, or further includes a filter to more completely remove the lint. .
According to an aspect of the present invention, there is provided a ductless dryers comprising: a main body defining an external appearance; a drum accommodating a drying object and rotatably installed in the main body; A hot air supply unit, a heat exchange unit for removing moisture contained in the air discharged from the drum, for adsorbing lint, and a cleaning unit for removing the lint absorbed by the heat exchange unit .
According to another aspect of the present invention, there is provided a ductless dryers comprising: a body defining an outer tube; a drum accommodating the object to be dried; a drum rotatably installed in the body; A hot air supply unit, a heat exchange unit for removing moisture contained in the air discharged from the drum and adsorbing a lint, a cleaning unit for removing a lint absorbed by the heat exchange unit, A circulation unit for leading the discharged air to the heat exchange unit; and a filter installed in the circulation unit for filtering a lint contained in the air discharged from the drum.
According to the present invention, it is possible to remove a lint which may cause clogging of the duct or contaminate the surrounding environment.
According to the present invention, the heat exchange unit can be used as a filter for removing lint, the lint can be simply removed by spraying water, and water can be sprayed over the entire surface of the heat exchange unit, The adsorbed lint can be removed more cleanly.
According to the present invention, the heat exchanging unit is used as a filter for removing lint, and a filter for removing lint is provided, and the lint is more completely removed by the dual device using the heat exchanging unit and the filter.
The ductless dryers according to the first embodiment of the present invention include a main body for forming an outer appearance, a drum accommodating a drying object, a drum rotatably installed in the main body, a hot air supply unit for supplying hot air into the drum, A heat exchanging unit for removing moisture contained in the air discharged from the drum and adsorbing lint; and a cleaning unit for removing the lint absorbed by the heat exchanging unit. The cleaning unit includes a spray unit for spraying water to the heat exchange unit, and a valve for opening and closing the movement of the sprayed water. The injection unit may further include a pump for supplying water from the outside to the injection unit.
According to another aspect of the present invention, there is provided a ductless dryers including a main body defining an external appearance, a drum accommodating a drying object, a drum rotatably installed in the main body, And a cleaning unit that removes water contained in the air discharged from the drum and removes the lint absorbed by the heat exchange unit, The cleaning unit includes an injection unit that injects water into the heat exchange unit, and a valve that opens and closes the movement of the water to be injected, wherein a plurality of the injection units are provided. Here, the plurality of injection units are installed at a predetermined distance so that water is sprayed to the entire heat exchange unit. In addition, the plurality of injection units individually spray water, or two or more injection units simultaneously spray water, and opens and closes the water through the valve to move the plurality of spray units. The injection unit may further include a pump for supplying water from the outside to the injection unit.
According to a third aspect of the present invention, there is provided a ductless dryer comprising: a body forming an outer tube; a drum accommodating the object to be dried; a drum rotatably installed in the body; A cleaning unit which removes water contained in the air discharged from the drum and removes the lint absorbed by the heat exchange unit; And a filter installed in the circulation unit for filtering the lint contained in the air discharged from the drum. The cleaning unit includes a spray unit for spraying water to the heat exchange unit, and a valve for opening and closing the movement of the sprayed water. The injection unit may further include a pump for supplying water from the outside to the injection unit.
In the ductless dryers according to the third embodiment of the present invention, the number of the injection units may be plural. The plurality of injection units may be installed at a predetermined distance so that water is sprayed to the entire heat exchange unit. When the plurality of injection units are installed at a certain distance, the plurality of injection units individually spray water, or two or more injection units Spray water. At this time, the valve opens and closes the movement of water to the plurality of injection units.
According to a fourth aspect of the present invention, there is provided a ductless dryer comprising: a body forming an outer tube; a drum accommodating the object to be dried; a drum rotatably installed in the body; A cleaning unit which removes water contained in the air discharged from the drum and removes the lint absorbed by the heat exchange unit; A filter installed in the circulation unit for filtering a lint contained in the air discharged from the drum, and a filter for filtering the lint, And a sealing portion for preventing the sealing member from being damaged. Here, the cleaning unit includes a spray unit for spraying water to the heat exchange unit, and a valve for opening and closing the movement of the sprayed water. The injection unit may further include a pump for supplying water from the outside to the injection unit. The sealing portion may include a sealing protrusion formed on the filter, a sealing groove into which the sealing protrusion is inserted, and a sealing member inserted into the sealing groove and contacting the sealing protrusion.
In the ductless dryers according to the fourth embodiment of the present invention, the number of the injection units may be plural. The plurality of injection units may be installed at a predetermined distance so that water is sprayed to the entire heat exchange unit. When the plurality of injection units are installed at a certain distance, the plurality of injection units individually spray water, or two or more injection units Spray water. At this time, the valve opens and closes the movement of water to the plurality of injection units.
Hereinafter, a ductless dryers according to the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a perspective view schematically showing a ductless dryers according to first and second embodiments of the present invention, and FIG. 2 is a plan view showing the inside of the ductless dryers of FIG. 1. FIG. 3 is a side view schematically showing a heat exchange unit of the ductless dryers according to the present invention, and FIG. 4 is a perspective view schematically showing a heat exchange unit of the ductless dryers according to the present invention.
1 and 2, the ductless dryers according to the present invention include a main body 110 forming an external appearance, a drum 120 accommodating a drying object and rotatably installed in the main body 110, A hot air supply unit 140 for supplying hot air into the drum 120; a heat exchange unit 150 for removing moisture contained in the air discharged from the drum 120 and adsorbing lint; And a cleaning unit 170 for removing the lint absorbed by the heat exchange unit 150. The cleaning unit 170 includes a spray unit (not shown) for spraying water to the heat exchange unit 150 and a valve (not shown) for opening and closing the movement of the sprayed water. Here, it is preferable that a spray nozzle is used as the injection unit, and a solenoid valve is used as the valve. Of course, similar devices or mechanisms may be used.
A door 111 for putting clothes into the drum 120 is installed on the front surface of the main body 110 and a foot 113 for supporting the main body 110 is installed on the bottom side. A belt 131 for rotating the drum 120 and a motor 135 for providing a driving force to the belt 131 are installed in the main body 110. [ On the shaft of the motor 135, a pulley for hooking the belt 131 is provided.
The drum 120 includes a plurality of lifters 121 capable of lifting clothes, and a drum 120 having an inner space to allow the clothes or the like to be dried to be inserted.
The hot air supply unit 140 includes a gas valve 141 for supplying and shutting off gas, a gas combustor 143 for mixing the gas exhausted from the gas valve 141 with air supplied from the outside, And a hot air supply duct 145 connecting the gas combustor 143 and the drum 120 so that the generated hot air is supplied to the drum 120. Flame rods may be installed in the hot air supply unit 140 to detect the flame current and indirectly determine the amount of carbon monoxide (CO) generated from the flame current by extending the edge of the flame. The gas valve 141 preferably uses a solenoid valve so that the gas injection amount can be sensitively controlled. The gas combustor 143 is connected to the gas valve 141 to mix the gas exhausted from the gas valve 141 and the outside air to burn the mixture, and then heat the air with heat generated at this time. The hot air generated by the heating is supplied to the drum 120 through the hot air supply duct 145.
The heat exchanging unit 150 is composed of a fin 151 and a tube 153. The heat exchanging unit 150 condenses the hot and humid air that has passed through the drum 120 by the heat exchange between air and water, . The inlet of this heat exchange unit 150 is connected to the drum 120 by the circulation unit 180 and the outlet thereof is connected to the exhaust duct 161. The fins 151 are laminated so as to allow a plurality of thin plates to vertically contact and pass through hot and humid air at fine intervals with a thin metal sheet having excellent conductivity. The tube 153 circulates water at a low temperature (for example, 22 ° C) inside and passes through the pin 151 in a reciprocating manner. At both ends of the tube 153, a water hose (not shown) is connected to supply and recover low-temperature water. At a lower portion of the heat exchanging unit 150, a water receiving (not shown) for collecting the condensed water generated in the condensing process and falling down is installed. Reference numeral 180a denotes a portion to which the circulation unit 180 and the heat exchange unit 150 are connected and reference numeral 161a denotes a portion to which the heat exchange unit 150 and the exhaust duct 161 are connected.
According to the first and second embodiments of the present invention, the lint is collected by utilizing the heat exchanging unit 150 itself, which is wetted as drying progresses, as a lint filter. The collected lint, on the other hand, contaminates the heat exchange unit 150, which is rinsed with cleaning water through a spray unit (e.g., Spray Nozzle) that induces direct contact with the heat exchanger surface at the end of each drying .
In the ductless dryers according to the second embodiment of the present invention, there are a plurality of the injection units (not shown). Here, the plurality of injection units are installed at a predetermined distance so that water is sprayed to the entire heat exchange unit 150. In addition, the plurality of injection units individually spray water, or two or more spray units simultaneously spray water, and water is moved to the plurality of spray units (not shown) through the valve (not shown) Open and close. In Fig. 4, reference numeral 171a denotes a portion to which two injection units are coupled.
Hereinafter, the ductless dryers according to the third and fourth embodiments of the present invention will be described in detail with reference to FIGS. 3 to 7. FIG.
FIG. 5 is a perspective view schematically showing a ductless dryers according to third and fourth embodiments of the present invention, FIG. 6 is a plan view showing the inside of the ductless dryers of FIG. 5, Fig. Here, the construction of the heat exchange unit 150 is described with reference to Figs. 3 and 4. Fig.
Hereinafter, among the components of the ductless dryers according to the third and fourth embodiments of the present invention, the components described in the ductless dryers according to the first and second embodiments are replaced.
3 and 7, the ductless dryers according to the present invention include a main body 110 forming an outer tube, a drum 120 accommodating a drying object and rotatably installed in the main body 110, A hot air supply unit 140 for supplying hot air into the drum 120; a heat exchange unit 150 for removing moisture contained in the air discharged from the drum 120 and adsorbing lint; A cleaning unit 170 for removing the lint absorbed by the heat exchange unit 150 and a circulation unit 180 for guiding the air discharged from the drum 120 to the heat exchange unit 150, And a filter 200 installed in the circulation unit 180 and filtering the lint contained in the air discharged from the drum 120.
Here, as the filter 200, it is preferable to use a V filter which increases the lint collection rate by reducing the volume of the filter.
In the ductless dryers according to the third embodiment of the present invention, the discharge lint is first reduced by using the filter 200, and the heat exchange unit 150, which is wetted as the drying progresses secondarily, is used as another filter And collect the remaining lint. On the other hand, the collected lint will contaminate the heat exchange unit, which is washed off with a cleaning water through a spray unit (for example, Spray Nozzle) which induces direct contact with the surface of the heat exchanger at the end of each drying.
Here, the cleaning unit 170 includes a spray unit (not shown) for spraying water to the heat exchange unit 150 and a valve (not shown) for opening and closing the movement of the sprayed water. Here, it is preferable that a spray nozzle is used as the injection unit, and a solenoid valve is used as the valve. Of course, similar devices or mechanisms may be used.
The ductless dryers according to the fourth embodiment of the present invention further include a sealing portion for preventing the lint from leaking to a portion where the filter is installed. (Not shown) formed in the filter, a sealing groove (not shown) in which the sealing protrusion is inserted, and a sealing member inserted in the sealing groove and contacting the sealing protrusion, (Not shown).
Here, the sealing portion is preferably formed in the filter and the circulating duct. That is, the sealing protrusion formed on the filter is formed in the filter, the sealing groove is formed in the filter installation duct of the circulating duct, and the sealing member is inserted into the sealing groove.
In the ductless dryers according to the fourth embodiment of the present invention, the discharge lint is reduced by using the filter 200 reinforced with the seal, and the heat exchanging unit 150 itself, which is wetted as the drying progresses, Use as a filter to collect the remaining lint. On the other hand, the collected lint will contaminate the heat exchange unit, which is washed off with a cleaning water through a spray unit (for example, Spray Nozzle) which induces direct contact with the surface of the heat exchanger at the end of each drying.
As described above, the heat exchanging unit 150 performing the final lint filter is contaminated by the collected lint after the drying process. This is called a heat exchanging unit fouling. The heat exchange unit must be cleaned for smooth drying performance and reliability. Various methods may be used for this purpose. However, by using the pressure of water connected to the spray unit (for example, spray nozzle), the cleaning water of appropriate pressure is directly sprayed onto the entire surface of the heat exchanging unit 150, A direct touch method is more effective. That is, it is more effective that the injected cleaning water should be directly closed to the lint absorbed in the heat exchanger.
The ductless dryers according to the present invention are based on the direct touch system. The direct-touch system uses a case where one injection unit is used (first embodiment) and a case where a plurality of injection units are used 4 embodiments). The use of one injection unit is superior in implementation algorithm and cost. On the other hand, when a plurality of spraying units are used, the lint can be efficiently removed even at a low water pressure, and the cleaning water sprayed from the spraying unit can be sprayed over the entire surface of the heat exchange unit 150. The lint removed by the above operation is discharged to the outside of the dryer together with the discharge of the cleaning water.
1 is a perspective view schematically illustrating a ductless dryers according to first and second embodiments of the present invention;
FIG. 2 is a plan view showing the interior of the ductless dryers of FIG. 1; FIG.
3 is a side view schematically illustrating a heat exchange unit of a ductless dryers according to the present invention;
FIG. 4 is a perspective view schematically showing a heat exchange unit of a ductless dryers according to the present invention; FIG.
FIG. 5 is a perspective view schematically illustrating a ductless dryer according to third and fourth embodiments of the present invention; FIG.
FIG. 6 is a plan view showing the interior of the ductless dryers of FIG. 5;
FIG. 7 is a rear view of the ductless dryers of FIG. 5; FIG.

Claims (9)

  1. A body forming an outer appearance;
    A drum accommodating the object to be dried and rotatably installed in the body;
    A hot air supply unit for supplying hot air into the drum;
    A heat exchange unit which removes moisture contained in air discharged from the drum and adsorbs lint; And
    And a cleaning unit provided in the heat exchange unit to remove a lint absorbed by the heat exchange unit by spraying water into the heat exchange unit.
  2. The cleaning apparatus according to claim 1,
    A spray unit for spraying water to the heat exchange unit; And
    And a valve for opening and closing movement of the water to be sprayed.
  3. 3. The apparatus according to claim 2,
    The ductless dryers according to claim 1,
  4. 4. The fuel injection control apparatus according to claim 3,
    Wherein the heat exchange unit is installed at a predetermined distance so as to spray water onto the entire heat exchange unit.
  5. 5. The valve according to claim 4,
    Wherein the plurality of spraying units individually spray water, or two or more spraying units spray water at the same time.
  6. 6. The method according to any one of claims 1 to 5,
    And a circulation unit for guiding air discharged from the drum to the heat exchange unit.
  7. The method according to claim 6,
    And a filter installed in the circulation unit for filtering a lint contained in the air discharged from the drum.
  8. 8. The method of claim 7,
    And a sealing portion for preventing the lint from leaking to a portion where the filter is installed.
  9. 9. The apparatus according to claim 8,
    A sealing protrusion formed on the filter;
    A sealing groove into which the sealing protrusion is inserted; And
    And a sealing member inserted into the sealing groove and contacting the sealing projection.
KR1020080090812A 2008-09-16 2008-09-16 ductless dryer KR101549861B1 (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
KR1020080090812A KR101549861B1 (en) 2008-09-16 2008-09-16 ductless dryer

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KR20100031929A KR20100031929A (en) 2010-03-25
KR101549861B1 true KR101549861B1 (en) 2015-09-03

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10648125B2 (en) 2015-12-18 2020-05-12 Whirlpool Corporation Laundry treating appliance and method of operation

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Publication number Priority date Publication date Assignee Title
KR101474458B1 (en) * 2008-09-17 2014-12-30 엘지전자 주식회사 Ductless Dryer And Controlling Method Thereof
US9562707B2 (en) 2013-03-14 2017-02-07 Whirlpool Corporation Refrigerator cooling system having a secondary cooling loop
US10087569B2 (en) 2016-08-10 2018-10-02 Whirlpool Corporation Maintenance free dryer having multiple self-cleaning lint filters
US10519591B2 (en) 2016-10-14 2019-12-31 Whirlpool Corporation Combination washing/drying laundry appliance having a heat pump system with reversible condensing and evaporating heat exchangers
US10738411B2 (en) 2016-10-14 2020-08-11 Whirlpool Corporation Filterless air-handling system for a heat pump laundry appliance
US10502478B2 (en) 2016-12-20 2019-12-10 Whirlpool Corporation Heat rejection system for a condenser of a refrigerant loop within an appliance
US10544539B2 (en) 2017-02-27 2020-01-28 Whirlpool Corporation Heat exchanger filter for self lint cleaning system in dryer appliance
US10514194B2 (en) 2017-06-01 2019-12-24 Whirlpool Corporation Multi-evaporator appliance having a multi-directional valve for delivering refrigerant to the evaporators
US10718082B2 (en) 2017-08-11 2020-07-21 Whirlpool Corporation Acoustic heat exchanger treatment for a laundry appliance having a heat pump system
CN108486838B (en) * 2018-04-16 2021-01-26 海信(山东)冰箱有限公司 Heat pump type clothes dryer capable of blowing and washing heat exchanger

Citations (3)

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Publication number Priority date Publication date Assignee Title
KR100806111B1 (en) 2007-02-23 2008-02-21 엘지전자 주식회사 Ductless dryer
KR100808411B1 (en) 2007-02-13 2008-02-29 엘지전자 주식회사 Ductless dryer
KR100826535B1 (en) 2007-02-20 2008-05-02 엘지전자 주식회사 Filter cleaning apparatus and ductless dryer having the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100808411B1 (en) 2007-02-13 2008-02-29 엘지전자 주식회사 Ductless dryer
KR100826535B1 (en) 2007-02-20 2008-05-02 엘지전자 주식회사 Filter cleaning apparatus and ductless dryer having the same
KR100806111B1 (en) 2007-02-23 2008-02-21 엘지전자 주식회사 Ductless dryer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10648125B2 (en) 2015-12-18 2020-05-12 Whirlpool Corporation Laundry treating appliance and method of operation

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