EP3063330A1 - A heat pump laundry dryer - Google Patents

A heat pump laundry dryer

Info

Publication number
EP3063330A1
EP3063330A1 EP14824953.5A EP14824953A EP3063330A1 EP 3063330 A1 EP3063330 A1 EP 3063330A1 EP 14824953 A EP14824953 A EP 14824953A EP 3063330 A1 EP3063330 A1 EP 3063330A1
Authority
EP
European Patent Office
Prior art keywords
water
dryer
flow channel
air
collection chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP14824953.5A
Other languages
German (de)
French (fr)
Inventor
Mustafa Gürcan DEMIR
Yusuf Koc
Mehmet Salih OCAK
Musa OZDEMIR
Erkan Ozturk
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Arcelik AS
Original Assignee
Arcelik AS
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
Application filed by Arcelik AS filed Critical Arcelik AS
Publication of EP3063330A1 publication Critical patent/EP3063330A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/24—Condensing arrangements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/206—Heat pump arrangements

Definitions

  • the present invention relates to a heat pump laundry dryer.
  • the heat pump used for drying the laundry is composed of heat exchangers named as evaporator and condenser.
  • the laundry-drying process is performed by passing hot and dry air over the laundry. Humid air leaving the laundry leaves its moisture while passing over the evaporator that works as the condenser and warms while passing over the condenser that works as the heater. The air that leaves its moisture and warms up is sent onto the laundry throughout the drying cycle.
  • the humid air condensing on the evaporator fins trickles down as water droplets due to the effect of the gravity and these droplets accumulate in the lower water collection chamber under the evaporator.
  • the condensed water in the lower water collection chamber is delivered to the water pumping chamber to be discharged by means of the water flow channel. Meanwhile, the air flow generated by the effect of the fan that maintain the cycling of the process air prevents the water from flowing into the water pumping chamber and cause water accumulation at the region of the flow channel.
  • the collected water humidifies the process air and decreases the drying performance of the dryer and cause generation of undesired bad odors.
  • a laundry dryer is explained, wherein the discharge of the water condensing in the evaporator is facilitated.
  • a dryer having a flow channel and a guiding member that enables the process air to be directed on the flow channel.
  • the aim of the present invention is the realization of a dryer wherein the drying efficiency is increased and generation of undesired bad odors is prevented by facilitating the discharge of the condensate water.
  • the dryer realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof comprises a flow channel having at least one barrier that prevents the accumulation of the condensed water in the lower water collection chamber and the water flow in reverse direction from the water pumping chamber towards the lower water collection chamber generated by the effect of the fan.
  • the dryer comprises the inclined flow channel so as to facilitate the flow of the condensed water.
  • the lower water collection chamber is located at a position higher than the water pumping chamber and the inclined base of the flow channel forms a barrier that prevents the reverse flow of water.
  • the flow channel comprises more than one barrier in cascade form to prevent the water flow in the reverse direction.
  • the barriers in cascade form force is exerted on the water tending to flow in the reverse direction due to the air flow over the flow channel, and flow in the reverse direction is prevented.
  • the lower water collection chamber is at the same level with the water pumping chamber.
  • more than one barrier configured as a zipper so as to face each other is used on the side walls of the flow channel. By the barriers, the water over the flow channel is directed and prevented from accumulating.
  • the barriers are in zipper form and face each other angularly.
  • the barriers in zipper form By means of the barriers in zipper form, the water is enabled to flow in a zigzag manner and the effect of the air flow on the water is decreased.
  • the dryer of the present invention can be a laundry dryer or a laundry washer/dryer.
  • the condensed water is prevented from accumulating inside the dryer and enabled to be almost entirely discharged.
  • the barrier that forms the base of the inclined flow channel between the lower water collection chamber and the water pumping chamber a resistance is formed in a direction opposite to the resistance formed by the air flow originating from the fan and the water is enabled to flow towards the water pumping chamber.
  • the barriers provided on the flow channel and in cascade form the water is prevented from flowing in the reverse direction.
  • the said problem is solved by using barriers disposed on the flow channel in the dryers where the lower water collection chamber and the water pumping chamber are at the same horizontal level.
  • the barriers being configured in zipper form and facing each other, the water is directed and thus prevented from flowing in the reverse direction and accumulating.
  • Figure 1 - is the schematic view of a dryer.
  • Figure 2 - is the partial cross-sectional view of the barrier in an embodiment.
  • Figure 3 - is another schematic view of a dryer.
  • Figure 4 - is the partial cross-sectional view of the barrier in another embodiment.
  • Figure 5 - is the top schematic view of the barriers in an embodiment.
  • Figure 6 - is the top schematic view of the barriers in another embodiment.
  • the elements illustrated in the figures are numbered as follows:
  • the dryer (1) comprises a body (2), a tub (3) disposed within the body (2) and wherein the drying processes are performed, an air channel (4) wherein the process air cycle is realized, a fan (5) providing the circulation of the process air, an evaporator (6) that is placed into the air channel (4) and that condenses the humid processing air, a condenser (7) that is placed into the air channel (4) and that heats the processing air dehumidified at the evaporator (6), a lower water collection chamber (8) disposed under the evaporator (6) and wherein the condensate water is collected, a pump (9) enabling the condensate water to be discharged, a water pumping chamber (10) wherein the pump (9) pumps water, and a flow channel (1 1) that provides the water connection between the lower water collection chamber (8) and the water pumping chamber (10).
  • the fan (5) realizes cycling of the process air.
  • the process air becomes humid while passing over the laundry and the humid air is enabled to be condensed by being delivered to the evaporator (6).
  • the water condensing on the evaporator (6) accumulate in the lower water collection chamber (8).
  • the condensed process air is heated by being passed through the condenser (7) and is delivered into the tub (3) again.
  • the water collected in the lower water collection chamber (8) flows into the water pumping chamber (10) through the flow channel (11) and is discharged by means of the pump (9).
  • the dryer (1) of the present invention comprises at least one barrier (12) that is provided on the flow channel (11) and that prevents the water from flowing backwards from the water pumping chamber (10) towards the lower water collection chamber (8) with the Venturi and vacuum effect of the process air.
  • the barrier (12) of the present invention physically applies resistance to the condensed water and facilitates the flow towards the water pumping chamber (10).
  • the dryer (1) comprises an inclined flow channel (11) the height of which decreases from the lower water collection chamber (8) towards the water pumping chamber (10).
  • a barrier (12) is formed and the flow of water into the water pumping chamber (10) is facilitated and water accumulation on the flow channel (1 1) is prevented.
  • the flow channel (11) comprises more than one barrier (12) in cascade form and that prevents the water from flowing towards the lower water collection chamber (8).
  • more physical resistance is exerted to the water and the water is prevented from flowing in the reverse direction and accumulating on the flow channel (11).
  • the dryer (1) comprises the barriers (12) that extend on the side walls of the flow channel (11) towards each other so as to be vertical to the flow direction.
  • the barriers (12) prevent the water from accumulating and/or flowing in the reverse direction.
  • the flow channel (11) comprises the barriers (12) that extend on the side walls of the flow channel (11) towards each other in an inclined manner in the flow direction.
  • the water is enabled to flow into the water pumping chamber (10) by decreasing the water flow-preventing effect of the vortexes formed by the air flow in the condensed water.
  • the dryer (1) is a drying machine. In an embodiment of the present invention, the dryer (1) is a laundry washing and drying machine.
  • the barrier (12) provided on the flow channel (11) is designed to so as to apply resistance to the water in order that the water condensed in the evaporator (6) is almost entirely discharged.
  • the barrier (12) forming the base of the flow channel (11) which is inclined from the lower water collection chamber (8) towards the water pumping chamber (10), the air flow is prevented from moving the water in the reverse direction and/or preventing the water flow.
  • the barriers (12) in cascade form provided on the flow channel (11) the physical resistance applied to the water is increased and thus the water is prevented from flowing in the reverse direction in the flow channel (11).

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

The present invention relates to a dryer (1) comprising a body (2), a tub (3) disposed within the body (2) and wherein the drying processes are performed, an air channel (4) wherein the process air cycle is realized, a fan (5) providing the circulation of the process air, an evaporator (6) that is placed into the air channel (4) and that condenses the humid process air, a condenser (7) that is placed into the air channel (4) and that heats the process air dehumidified at the evaporator (6), a lower water collection chamber (8) disposed under the evaporator (6) and wherein the condensate water is collected, a pump (9) enabling the condensate water to be discharged, a water pumping chamber (10) wherein the pump (9) pumps water, and a flow channel (11) that provides the water connection between the lower water collection chamber (8) and the water pumping chamber (10).

Description

A HEAT PUMP LAUNDRY DRYER
The present invention relates to a heat pump laundry dryer.
In heat pump laundry dryers wherein closed cycle drying process is applied, the heat pump used for drying the laundry is composed of heat exchangers named as evaporator and condenser. The laundry-drying process is performed by passing hot and dry air over the laundry. Humid air leaving the laundry leaves its moisture while passing over the evaporator that works as the condenser and warms while passing over the condenser that works as the heater. The air that leaves its moisture and warms up is sent onto the laundry throughout the drying cycle. The humid air condensing on the evaporator fins trickles down as water droplets due to the effect of the gravity and these droplets accumulate in the lower water collection chamber under the evaporator. The condensed water in the lower water collection chamber is delivered to the water pumping chamber to be discharged by means of the water flow channel. Meanwhile, the air flow generated by the effect of the fan that maintain the cycling of the process air prevents the water from flowing into the water pumping chamber and cause water accumulation at the region of the flow channel. The collected water humidifies the process air and decreases the drying performance of the dryer and cause generation of undesired bad odors. In the Patent Application No. JP2009247600, a laundry dryer is explained, wherein the discharge of the water condensing in the evaporator is facilitated.
In the Patent Application No. WO2012146534, a dryer is explained having an air guide that enables the process air to be directed on the lower water chamber.
In the Patent Application No. WO2012146533, a dryer is explained having a flow channel and a guiding member that enables the process air to be directed on the flow channel.
The aim of the present invention is the realization of a dryer wherein the drying efficiency is increased and generation of undesired bad odors is prevented by facilitating the discharge of the condensate water. The dryer realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof comprises a flow channel having at least one barrier that prevents the accumulation of the condensed water in the lower water collection chamber and the water flow in reverse direction from the water pumping chamber towards the lower water collection chamber generated by the effect of the fan.
In an embodiment of the present invention, the dryer comprises the inclined flow channel so as to facilitate the flow of the condensed water. In this embodiment, the lower water collection chamber is located at a position higher than the water pumping chamber and the inclined base of the flow channel forms a barrier that prevents the reverse flow of water.
In an embodiment of the present invention, the flow channel comprises more than one barrier in cascade form to prevent the water flow in the reverse direction. By the barriers in cascade form, force is exerted on the water tending to flow in the reverse direction due to the air flow over the flow channel, and flow in the reverse direction is prevented.
In an embodiment of the present invention, the lower water collection chamber is at the same level with the water pumping chamber. In this embodiment, in order to prevent water accumulation on the flow channel and/or water flow in the reverse direction, more than one barrier configured as a zipper so as to face each other is used on the side walls of the flow channel. By the barriers, the water over the flow channel is directed and prevented from accumulating.
In an embodiment of the present invention, the barriers are in zipper form and face each other angularly. By means of the barriers in zipper form, the water is enabled to flow in a zigzag manner and the effect of the air flow on the water is decreased.
In different embodiments of the present invention, the dryer of the present invention can be a laundry dryer or a laundry washer/dryer.
By means of the design of the barriers on the flow channel used in the dryer of the present invention, the condensed water is prevented from accumulating inside the dryer and enabled to be almost entirely discharged. By means of the barrier that forms the base of the inclined flow channel between the lower water collection chamber and the water pumping chamber, a resistance is formed in a direction opposite to the resistance formed by the air flow originating from the fan and the water is enabled to flow towards the water pumping chamber. By means of the barriers provided on the flow channel and in cascade form, the water is prevented from flowing in the reverse direction. The said problem is solved by using barriers disposed on the flow channel in the dryers where the lower water collection chamber and the water pumping chamber are at the same horizontal level. By means of the barriers being configured in zipper form and facing each other, the water is directed and thus prevented from flowing in the reverse direction and accumulating.
The dryer realized in order to attain the aim of the present invention is illustrated in the attached figures, where: Figure 1 - is the schematic view of a dryer.
Figure 2 - is the partial cross-sectional view of the barrier in an embodiment.
Figure 3 - is another schematic view of a dryer.
Figure 4 - is the partial cross-sectional view of the barrier in another embodiment. Figure 5 - is the top schematic view of the barriers in an embodiment. Figure 6 - is the top schematic view of the barriers in another embodiment. The elements illustrated in the figures are numbered as follows:
1. Dryer
2. Body
3. Tub 4. Air channel
5. Fan
6. Evaporator 7. Condenser
8. Lower water collection chamber
9. Pump
10. Water pumping chamber 11. Flow channel
12. Barrier
The dryer (1) comprises a body (2), a tub (3) disposed within the body (2) and wherein the drying processes are performed, an air channel (4) wherein the process air cycle is realized, a fan (5) providing the circulation of the process air, an evaporator (6) that is placed into the air channel (4) and that condenses the humid processing air, a condenser (7) that is placed into the air channel (4) and that heats the processing air dehumidified at the evaporator (6), a lower water collection chamber (8) disposed under the evaporator (6) and wherein the condensate water is collected, a pump (9) enabling the condensate water to be discharged, a water pumping chamber (10) wherein the pump (9) pumps water, and a flow channel (1 1) that provides the water connection between the lower water collection chamber (8) and the water pumping chamber (10).
In the dryer (1), the fan (5) realizes cycling of the process air. The process air becomes humid while passing over the laundry and the humid air is enabled to be condensed by being delivered to the evaporator (6). The water condensing on the evaporator (6) accumulate in the lower water collection chamber (8). The condensed process air is heated by being passed through the condenser (7) and is delivered into the tub (3) again. The water collected in the lower water collection chamber (8) flows into the water pumping chamber (10) through the flow channel (11) and is discharged by means of the pump (9).
The dryer (1) of the present invention comprises at least one barrier (12) that is provided on the flow channel (11) and that prevents the water from flowing backwards from the water pumping chamber (10) towards the lower water collection chamber (8) with the Venturi and vacuum effect of the process air. The barrier (12) of the present invention physically applies resistance to the condensed water and facilitates the flow towards the water pumping chamber (10).
In an embodiment of the present invention, the dryer (1) comprises an inclined flow channel (11) the height of which decreases from the lower water collection chamber (8) towards the water pumping chamber (10). By means of the flow channel (11) being inclined, a barrier (12) is formed and the flow of water into the water pumping chamber (10) is facilitated and water accumulation on the flow channel (1 1) is prevented.
In an embodiment of the present invention, the flow channel (11) comprises more than one barrier (12) in cascade form and that prevents the water from flowing towards the lower water collection chamber (8). Thus, more physical resistance is exerted to the water and the water is prevented from flowing in the reverse direction and accumulating on the flow channel (11).
In an embodiment of the present invention, the dryer (1) comprises the barriers (12) that extend on the side walls of the flow channel (11) towards each other so as to be vertical to the flow direction. The barriers (12) prevent the water from accumulating and/or flowing in the reverse direction.
In an embodiment of the present invention, the flow channel (11) comprises the barriers (12) that extend on the side walls of the flow channel (11) towards each other in an inclined manner in the flow direction. In this embodiment, the water is enabled to flow into the water pumping chamber (10) by decreasing the water flow-preventing effect of the vortexes formed by the air flow in the condensed water.
In an embodiment of the present invention, the dryer (1) is a drying machine. In an embodiment of the present invention, the dryer (1) is a laundry washing and drying machine.
In the dryer (1) of the present invention, the barrier (12) provided on the flow channel (11) is designed to so as to apply resistance to the water in order that the water condensed in the evaporator (6) is almost entirely discharged. By means of the barrier (12) forming the base of the flow channel (11) which is inclined from the lower water collection chamber (8) towards the water pumping chamber (10), the air flow is prevented from moving the water in the reverse direction and/or preventing the water flow. By means of the barriers (12) in cascade form provided on the flow channel (11), the physical resistance applied to the water is increased and thus the water is prevented from flowing in the reverse direction in the flow channel (11). In dryers (1) where the lower water collection chamber (8) and the water pumping chamber (10) are at the same level, water accumulation is prevented by the barriers (12) provided on the flow channel (1 1). By means of the barriers (12) being positioned vertically or angularly so as to face each other, the water is enabled to be directed and water flow in the reverse direction is made difficult.

Claims

1 - A dryer (1) comprising a body (2), a tub (3) disposed within the body (2) and wherein the drying processes are performed, an air channel (4) wherein the process air cycle is realized, a fan (5) providing the circulation of the process air, an evaporator (6) that is placed into the air channel (4) and that condenses the humid process air, a condenser (7) that is placed into the air channel (4) and that heats the process air dehumidified at the evaporator (6), a lower water collection chamber (8) disposed under the evaporator (6) and wherein the condensate water is collected, a pump (9) enabling the condensate water to be discharged, a water pumping chamber (10) wherein the pump (9) pumps water, and a flow channel (1 1) that provides the water connection between the lower water collection chamber (8) and the water pumping chamber (10), characterized in that at least one barrier (12) that is provided on the flow channel (11) and that prevents the water from flowing backwards from the water pumping chamber (10) towards the lower water collection chamber (8).
2 - A dryer (1) as in Claim 1, characterized in that the inclined flow channel (1 1) the height of which decreases from the lower water collection chamber (8) towards the water pumping chamber (10).
3 - A dryer (1) as in any one of the above claims, characterized in that more than one barrier (12) in cascade form that prevents the water from flowing towards the lower water collection chamber (8).
4 - A dryer (1) as in any one of the above claims, characterized in that more than one barrier (12) extending from the side walls of the flow channel (11) towards each other so as to be vertical to the flow direction. 5 - A dryer (1) as in any one of the above claims, characterized in that more than one barrier (12) extending from the side walls of the flow channel (1 1) towards each other in an inclined manner in the flow direction.
6 - A dryer (1) as in any one of the above claims, which is a drying machine. 7 - A dryer (1) as in any one of the Claims 1 to 5, which is a laundry washing and drying machine.
EP14824953.5A 2013-11-01 2014-10-27 A heat pump laundry dryer Withdrawn EP3063330A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201312673 2013-11-01
PCT/TR2014/000393 WO2015065299A1 (en) 2013-11-01 2014-10-27 A heat pump laundry dryer

Publications (1)

Publication Number Publication Date
EP3063330A1 true EP3063330A1 (en) 2016-09-07

Family

ID=52302297

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14824953.5A Withdrawn EP3063330A1 (en) 2013-11-01 2014-10-27 A heat pump laundry dryer

Country Status (2)

Country Link
EP (1) EP3063330A1 (en)
WO (1) WO2015065299A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106436233B (en) * 2016-07-08 2018-04-20 无锡小天鹅股份有限公司 Heat pump clothes dryer
CN106049002B (en) * 2016-07-08 2018-04-20 无锡小天鹅股份有限公司 Heat pump clothes dryer
KR20210103105A (en) * 2020-02-13 2021-08-23 엘지전자 주식회사 Laundry Treatment Apparatus
CN111364220B (en) * 2020-04-21 2021-12-21 无锡飞翎电子有限公司 Liquid drainage partition plate for clothes dryer and clothes dryer
CN114075772B (en) * 2020-08-21 2023-02-28 无锡小天鹅电器有限公司 Air duct shell for clothes dryer and clothes dryer
CN113215796A (en) * 2021-05-31 2021-08-06 Tcl家用电器（合肥）有限公司 Base assembly and clothes dryer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009247600A (en) 2008-04-07 2009-10-29 Panasonic Corp Drying equipment
EP2458074A1 (en) * 2010-11-29 2012-05-30 Electrolux Home Products Corporation N.V. Heat pump laundry dryer
TR201104078A1 (en) 2011-04-26 2012-11-21 Arçeli̇k Anoni̇m Şi̇rketi̇ Laundry dryer with heat pump.
TR201104077A1 (en) 2011-04-26 2012-11-21 Arçeli̇k Anoni̇m Şi̇rketi̇ Laundry dryer with heat pump.

Also Published As

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