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WO2013182400A1 - Heat pump laundry dryer - Google Patents

Heat pump laundry dryer Download PDF

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Publication number
WO2013182400A1
WO2013182400A1 PCT/EP2013/060270 EP2013060270W WO2013182400A1 WO 2013182400 A1 WO2013182400 A1 WO 2013182400A1 EP 2013060270 W EP2013060270 W EP 2013060270W WO 2013182400 A1 WO2013182400 A1 WO 2013182400A1
Authority
WO
WIPO (PCT)
Prior art keywords
laundry dryer
air
shutter
circulation duct
air circulation
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.)
Ceased
Application number
PCT/EP2013/060270
Other languages
French (fr)
Inventor
Yavuz Sahin
Gokhan SIR
Onur Hartoka
Mehmet Kaya
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
Priority to EP13725120.3A priority Critical patent/EP2855758A1/en
Publication of WO2013182400A1 publication Critical patent/WO2013182400A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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 
    • D06F58/206—Heat pump 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/28—Air properties
    • D06F2103/36—Flow or velocity
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/38—Time, e.g. duration
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/50—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to heat pumps, e.g. pressure or flow rate
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/16—Air properties
    • D06F2105/24—Flow or velocity
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/26—Heat pumps
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/32—Air flow control means
    • 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
    • D06F58/32—Control of operations performed in domestic laundry dryers 
    • D06F58/34—Control of operations performed in domestic laundry dryers  characterised by the purpose or target of the control
    • D06F58/46—Control of the operating time
    • 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
    • D06F58/32—Control of operations performed in domestic laundry dryers 
    • D06F58/34—Control of operations performed in domestic laundry dryers  characterised by the purpose or target of the control
    • D06F58/48—Control of the energy consumption
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Definitions

  • the present invention relates to a heat pump laundry dryer.
  • the heat pump used for drying the laundry is composed of flow tubes through which the refrigerant circulates, a compressor that provides the circulation of the refrigerant by pressurizing it, an evaporator and a condenser, and the drying process is performed by passing the processing air over the laundry.
  • the condenser located in the heat pump functions as a heater and the evaporator functions as a condenser.
  • the processing air is heated while passing through the condenser, delivered onto the laundry as being heated and after dehumidifying the laundry, leaves its humidity while passing over the evaporator.
  • various embodiments are performed in order to decrease energy consumption. For example, the compressor speed is decreased/increased, the operational parameters of the condenser and the evaporator, which are the other components of the heat pump, are changed; however, the desired improvement in the energy consumption cannot be attained.
  • the aim of the present invention is the realization of a laundry dryer which comprises a heat pump and wherein energy is saved by decreasing the time of drying process.
  • the laundry dryer realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof comprises a drum, an air circulation duct and a heat pump composed of a compressor, an evaporator and a condenser, and the processing air that is dehumidified in the evaporator and heated in the condenser is sent onto the laundry in the drum through the air circulation duct by means of the processing air fan.
  • the control unit regulating the drying processes stops the operation of the heat pump at the end of the drying process, but does not stop the operation of the processing air fan and the laundry in the drum is provided to be aired.
  • dry air is received into the air circulation duct from the outer environment by means of an opening on the air circulation duct and a shutter that is opened/closed on the opening.
  • the shutter is opened/closed on the opening by being actuated by a driving mechanism with a thermo-actuator, solenoid valve, electric motor, etc.
  • the shutter is located at the upper side of the air circulation duct and opens towards the gap between the air circulation duct and the drum.
  • the shutter is located at the lower side of the air circulation duct and opens towards the gap between the air circulation duct and the exterior body base.
  • the environment air heated by the compressor is provided to be received into the air circulation duct.
  • the laundry dryer comprises a cooling fan that provides the compressor to be cooled with the outer environment air.
  • the environment air which cools the compressor by means of the cooling fan and hence which is heated, is guided to the air circulation duct by means of the shutter opening towards the gap wherein the compressor is situated.
  • the driving mechanism actuates the shutter by means of a crank connected to the center of the shutter.
  • a sealing element is placed onto the shutter or at the edges of the opening.
  • the processing air fan is operated for some more time after the drying process is completed and thus, the laundry in the drum is aired and the temperature and humidity inside the drum are reduced.
  • the operation time of the heat pump and hence the total drying time are shortened and energy saving is provided.
  • Figure 1 - is the schematic view of a laundry dryer.
  • PA Processing air providing the drying of the laundry
  • the laundry dryer (1) comprises a body (15), a drum (2) wherein the laundry to be dried is placed, an air circulation duct (3) providing the dry and hot processing air (PA) to be sent onto the laundry in the drum (2), a processing air fan (4) located in the air circulation duct (3), a heat pump (8) having a compressor (5) wherein the refrigerant cycle is realized and which provides the refrigerant to be sucked and compressed, an evaporator (6) which provides the processing air (PA) to be dehumidified and a condenser (7) which provides the processing air (PA) to be heated, and a control unit (9) regulating the drying process.
  • a body 15
  • a drum (2) wherein the laundry to be dried is placed
  • an air circulation duct (3) providing the dry and hot processing air (PA) to be sent onto the laundry in the drum (2)
  • a processing air fan (4) located in the air circulation duct (3)
  • a heat pump (8) having a compressor (5) wherein the refrigerant cycle is realized and which provides
  • the laundry dryer (1) of the present invention comprises a control unit (9) which continues the operation of the processing air fan (4) for some more time after stopping the operation of the heat pump (8) at the end of the drying process.
  • the compressor (5) is stopped by the control unit (9) at the end of the drying process and therefore, the evaporator (6) and the condenser (7), to which the refrigerant is sent by the compressor (5), are also stopped.
  • the processing air fan (4) is continued to be operated by the control unit (9) for some more time, for example for 5 – 10 minutes.
  • the laundry in the drum (2) is aired, and the temperature and the amount of humidity inside the drum (2) are reduced.
  • the laundry dryer (1) comprises an opening (16) arranged on the side wall of the air circulation duct (3) and a shutter (10) which is opened/closed on the opening (16), which is kept in the closed position and does not allow entry of air into the air circulation duct (3) from the outside while the heat pump (8) operates during the drying process and which allows suction of air into the air circulation duct (3) from the environment inside the body (15) by being brought to the open position after the operation of the heat pump (8) is stopped by the control unit (9).
  • the shutter (10) When opened at the end of the drying process, the shutter (10) provides the dry and hot environment air inside the body (15) to be mixed with the processing air (PA) sent to the drum (2) by the processing air fan (4) in the air circulation duct (3) and the laundry drying efficiency of the processing air (PA), which passes through the evaporator (6) and the condenser (7) without the application of drying and heating processes, is increased.
  • the shutter (10) is located before the processing air fan (4) on the air ventilation duct (3) and the suction effect of the processing air fan (4) is utilized for sucking air into the air ventilation duct (3) from the outside.
  • the shutter (10) is located at the upper side of the air circulation duct (3) and opens towards the gap (B1) between the air circulation duct (3) and the drum (2) at the end of the drying process.
  • the heat pump (8) is stopped by the control unit (9) at the end of the drying process, the shutter (10) is opened and the environment air heated in the gap (B1) with the effect of the waste heat of the drum (2) is provided to enter the air circulation duct (3).
  • the processing air (PA) is heated by the environment air received from the outside and its capacity of dehumidifying the laundry is increased.
  • the shutter (10) is located at the lower side of the air circulation duct (3) and opens towards the gap (B2) which is between the air circulation duct (3) and the body (15) base and wherein the compressor (5) is situated at the end of the drying process, and the environment air heated with the effect of the waste heat of the compressor (5) is provided to be mixed with the processing air (PA) in the air circulation duct (3).
  • the laundry dryer (1) comprises a cooling fan (11) which sucks air from the environment outside the body (15), which provides the air to be passed over the compressor (5) and to be sent into the gap (B2) wherein the compressor (5) is situated.
  • the environment air in the gap (B2) is heated by the outer environment air passed over the compressor (5) and is guided to the air circulation duct (3) by means of the shutter (10) opening towards the gap (B2).
  • the ratio of dry and hot air transmitted to the air circulation duct (3) by means of the cooling fan (11) is increased and the laundry drying efficiency of the processing air (PA) is increased.
  • the laundry dryer (1) comprises a driving mechanism (12) which provides the shutter (10) to be opened/closed on the opening (A) in the air circulation duct (3).
  • the driving mechanism (12) comprises a thermo-actuator.
  • the driving mechanism (12) comprises a solenoid valve.
  • the driving mechanism (12) comprises an electric motor.
  • the driving mechanism (12) comprises a crank (13) which provides the shutter (10) to close the opening (16) in a balanced manner by pressing onto the center of the shutter (10).
  • the laundry dryer (1) comprises a sealing element (14) which is placed onto the shutter (10) or at the edges of the opening (16), providing the shutter (10) to close the opening (16) in a leak-proof manner.
  • the humidity remaining on the laundry in the drum (2) is removed by the control unit (9) operating the processing air fan (4) for some more time at the end of the drying process.
  • the operation time of the heat pump (8) is shortened and energy saving is provided.

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

Description

HEAT PUMP LAUNDRY DRYER
The present invention relates to a heat pump laundry dryer.
In heat pump laundry dryers, the heat pump used for drying the laundry is composed of flow tubes through which the refrigerant circulates, a compressor that provides the circulation of the refrigerant by pressurizing it, an evaporator and a condenser, and the drying process is performed by passing the processing air over the laundry. The condenser located in the heat pump functions as a heater and the evaporator functions as a condenser. The processing air is heated while passing through the condenser, delivered onto the laundry as being heated and after dehumidifying the laundry, leaves its humidity while passing over the evaporator. In the state of the art, in the laundry dryers wherein the heat pump system operates, various embodiments are performed in order to decrease energy consumption. For example, the compressor speed is decreased/increased, the operational parameters of the condenser and the evaporator, which are the other components of the heat pump, are changed; however, the desired improvement in the energy consumption cannot be attained.
In the state of the art Japanese Patent Applications No. JP2004236965, JP2004358028, JP2005279257, JP2009195363 and JP2010082112, embodiments are explained, wherein the time of drying process and hence the power consumption are decreased by increasing the effectiveness of dehumidification in order to improve the energy efficiency in the heat pump laundry dryers.
In the International Patent Application No. WO2008052906, a method is explained that is used for operating a laundry dryer and wherein energy is saved. In the applied method, in the heating phase at the start of the drying process, the processing air fan is operated intermittently.
The aim of the present invention is the realization of a laundry dryer which comprises a heat pump and wherein energy is saved by decreasing the time of drying process.
The laundry dryer realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof comprises a drum, an air circulation duct and a heat pump composed of a compressor, an evaporator and a condenser, and the processing air that is dehumidified in the evaporator and heated in the condenser is sent onto the laundry in the drum through the air circulation duct by means of the processing air fan. The control unit regulating the drying processes stops the operation of the heat pump at the end of the drying process, but does not stop the operation of the processing air fan and the laundry in the drum is provided to be aired.
In an embodiment of the present invention, dry air is received into the air circulation duct from the outer environment by means of an opening on the air circulation duct and a shutter that is opened/closed on the opening. The shutter is opened/closed on the opening by being actuated by a driving mechanism with a thermo-actuator, solenoid valve, electric motor, etc.
In another embodiment of the present invention, the shutter is located at the upper side of the air circulation duct and opens towards the gap between the air circulation duct and the drum.
In another embodiment of the present invention, the shutter is located at the lower side of the air circulation duct and opens towards the gap between the air circulation duct and the exterior body base. In this embodiment, the environment air heated by the compressor is provided to be received into the air circulation duct.
In another embodiment of the present invention, the laundry dryer comprises a cooling fan that provides the compressor to be cooled with the outer environment air. The environment air, which cools the compressor by means of the cooling fan and hence which is heated, is guided to the air circulation duct by means of the shutter opening towards the gap wherein the compressor is situated.
In an embodiment of the present invention, the driving mechanism actuates the shutter by means of a crank connected to the center of the shutter.
In another embodiment of the present invention, a sealing element is placed onto the shutter or at the edges of the opening.
In the laundry dryer of the present invention, at the end of the drying process, the processing air fan is operated for some more time after the drying process is completed and thus, the laundry in the drum is aired and the temperature and humidity inside the drum are reduced. The operation time of the heat pump and hence the total drying time are shortened and energy saving is provided.
The laundry dryer realized in order to attain the aim of the present invention is illustrated in the attached figure, where:
Figure 1 - is the schematic view of a laundry dryer.
The elements illustrated in the figure are numbered as follows:
  1. Laundry dryer
  2. Drum
  3. Air circulation duct
  4. Processing air fan
  5. Compressor
  6. Evaporator
  7. Condenser
  8. Heat pump
  9. Control unit
  10. Shutter
  11. Cooling fan
  12. Driving mechanism
  13. Crank
  14. Sealing element
  15. Body
  16. Opening
B1: Gap located under the drum in the heat pump laundry dryer
B2: Gap wherein the compressor is situated in the heat pump laundry dryer
PA: Processing air providing the drying of the laundry
The laundry dryer (1) comprises a body (15), a drum (2) wherein the laundry to be dried is placed, an air circulation duct (3) providing the dry and hot processing air (PA) to be sent onto the laundry in the drum (2), a processing air fan (4) located in the air circulation duct (3), a heat pump (8) having a compressor (5) wherein the refrigerant cycle is realized and which provides the refrigerant to be sucked and compressed, an evaporator (6) which provides the processing air (PA) to be dehumidified and a condenser (7) which provides the processing air (PA) to be heated, and a control unit (9) regulating the drying process.
The laundry dryer (1) of the present invention comprises a control unit (9) which continues the operation of the processing air fan (4) for some more time after stopping the operation of the heat pump (8) at the end of the drying process.
In the laundry dryer (1), the compressor (5) is stopped by the control unit (9) at the end of the drying process and therefore, the evaporator (6) and the condenser (7), to which the refrigerant is sent by the compressor (5), are also stopped. The processing air fan (4) is continued to be operated by the control unit (9) for some more time, for example for 5 – 10 minutes. Thus, the laundry in the drum (2) is aired, and the temperature and the amount of humidity inside the drum (2) are reduced.
In an embodiment of the present invention, the laundry dryer (1) comprises an opening (16) arranged on the side wall of the air circulation duct (3) and a shutter (10) which is opened/closed on the opening (16), which is kept in the closed position and does not allow entry of air into the air circulation duct (3) from the outside while the heat pump (8) operates during the drying process and which allows suction of air into the air circulation duct (3) from the environment inside the body (15) by being brought to the open position after the operation of the heat pump (8) is stopped by the control unit (9).
When opened at the end of the drying process, the shutter (10) provides the dry and hot environment air inside the body (15) to be mixed with the processing air (PA) sent to the drum (2) by the processing air fan (4) in the air circulation duct (3) and the laundry drying efficiency of the processing air (PA), which passes through the evaporator (6) and the condenser (7) without the application of drying and heating processes, is increased.
In an embodiment of the present invention, the shutter (10) is located before the processing air fan (4) on the air ventilation duct (3) and the suction effect of the processing air fan (4) is utilized for sucking air into the air ventilation duct (3) from the outside.
In another embodiment of the present invention, the shutter (10) is located at the upper side of the air circulation duct (3) and opens towards the gap (B1) between the air circulation duct (3) and the drum (2) at the end of the drying process. When the heat pump (8) is stopped by the control unit (9) at the end of the drying process, the shutter (10) is opened and the environment air heated in the gap (B1) with the effect of the waste heat of the drum (2) is provided to enter the air circulation duct (3). The processing air (PA) is heated by the environment air received from the outside and its capacity of dehumidifying the laundry is increased.
In another embodiment of the present invention, the shutter (10) is located at the lower side of the air circulation duct (3) and opens towards the gap (B2) which is between the air circulation duct (3) and the body (15) base and wherein the compressor (5) is situated at the end of the drying process, and the environment air heated with the effect of the waste heat of the compressor (5) is provided to be mixed with the processing air (PA) in the air circulation duct (3).
In another embodiment of the present invention, the laundry dryer (1) comprises a cooling fan (11) which sucks air from the environment outside the body (15), which provides the air to be passed over the compressor (5) and to be sent into the gap (B2) wherein the compressor (5) is situated. The environment air in the gap (B2) is heated by the outer environment air passed over the compressor (5) and is guided to the air circulation duct (3) by means of the shutter (10) opening towards the gap (B2). The ratio of dry and hot air transmitted to the air circulation duct (3) by means of the cooling fan (11) is increased and the laundry drying efficiency of the processing air (PA) is increased.
In an embodiment of the present invention, the laundry dryer (1) comprises a driving mechanism (12) which provides the shutter (10) to be opened/closed on the opening (A) in the air circulation duct (3).
In another embodiment of the present invention, the driving mechanism (12) comprises a thermo-actuator.
In another embodiment of the present invention, the driving mechanism (12) comprises a solenoid valve.
In another embodiment of the present invention, the driving mechanism (12) comprises an electric motor.
In another embodiment of the present invention, the driving mechanism (12) comprises a crank (13) which provides the shutter (10) to close the opening (16) in a balanced manner by pressing onto the center of the shutter (10).
In an embodiment of the present invention, the laundry dryer (1) comprises a sealing element (14) which is placed onto the shutter (10) or at the edges of the opening (16), providing the shutter (10) to close the opening (16) in a leak-proof manner.
In the laundry dryer (1) of the present invention, the humidity remaining on the laundry in the drum (2) is removed by the control unit (9) operating the processing air fan (4) for some more time at the end of the drying process. The operation time of the heat pump (8) is shortened and energy saving is provided.
It is to be understood that the present invention is not limited by the embodiments disclosed above and a person skilled in the art can easily introduce different embodiments. These should be considered within the scope of the protection disclosed by the claims of the present invention.

Claims (12)

  1. A laundry dryer (1) comprising a body (15), a drum (2) wherein the laundry to be dried is placed, an air circulation duct (3) providing the processing air (PA) to be sent onto the laundry in the drum (2), a processing air fan (4) located in the air circulation duct (3), a heat pump (8) having a compressor (5), an evaporator (6) and a condenser (7), and a control unit (9), characterized in that the control unit (9) which provides the continuation of the operation of the processing air fan (4) for some more time after stopping the heat pump (8).
  2. A laundry dryer (1) as in Claim 1, characterized in that an opening (16) located on the air circulation duct (3) and a shutter (10) which is opened/closed on the opening (16), which is kept in the closed position while the heat pump (8) operates, which is brought to the open position after the heat pump (8) is stopped and hence allows suction of air into the air circulation duct (3) from the environment inside the body (15).
  3. A laundry dryer (1) as in Claim 2, characterized in that the shutter (10) which is located before the processing air fan (4) on the air ventilation duct (3).
  4. A laundry dryer (1) as in Claim 2 or 3, characterized in that the shutter (10) which is located at the upper side of the air circulation duct (3) and opens towards the gap (B1) between the air circulation duct (3) and the drum (2) at the end of the drying process.
  5. A laundry dryer (1) as in Claim 2 or 3, characterized in that the shutter (10) that is located at the lower side of the air circulation duct (3) and opens, at the end of the drying process, towards the gap (B2) which is between the air circulation duct (3) and the body (15) base and wherein the compressor (5) is situated.
  6. A laundry dryer (1) as in Claim 5, characterized in that a cooling fan (11) which sucks air from the environment outside the body (15) and which provides the air to be passed over the compressor (5) and to be sent into the gap (B2) wherein the compressor (5) is situated.
  7. A laundry dryer (1) as in any one of the above claims, characterized in that a driving mechanism (12) which provides the shutter (10) to be opened/closed on the opening (16).
  8. A laundry dryer (1) as in Claim 7, .characterized in that the driving mechanism (12) that comprises a thermo-actuator.
  9. A laundry dryer (1) as in Claim 7, .characterized in that the driving mechanism (12) that comprises a solenoid valve.
  10. A laundry dryer (1) as in Claim 7, .characterized in that the driving mechanism (12) that comprises an electric motor.
  11. A laundry dryer (1) as in any one of the Claims 7 to 10, characterized in that the driving mechanism (12) that comprises a crank (13) which provides the shutter (10) to close the opening (16) by pressing onto the center of the shutter (10).
  12. A laundry dryer (1) as in any one of the above claims, characterized in that a sealing element (14) which is placed onto the shutter (10) or at the edges of the opening (16).
PCT/EP2013/060270 2012-06-05 2013-05-17 Heat pump laundry dryer Ceased WO2013182400A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13725120.3A EP2855758A1 (en) 2012-06-05 2013-05-17 Heat pump laundry dryer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201206550 2012-06-05
TRA2012/06550 2012-06-05

Publications (1)

Publication Number Publication Date
WO2013182400A1 true WO2013182400A1 (en) 2013-12-12

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Application Number Title Priority Date Filing Date
PCT/EP2013/060270 Ceased WO2013182400A1 (en) 2012-06-05 2013-05-17 Heat pump laundry dryer

Country Status (2)

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EP (1) EP2855758A1 (en)
WO (1) WO2013182400A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3015591A1 (en) * 2014-10-28 2016-05-04 LG Electronics Inc. Clothes treating apparatus and control method thereof
CN105887453A (en) * 2016-05-31 2016-08-24 无锡小天鹅股份有限公司 Clothes dryer
CN106245295A (en) * 2016-08-31 2016-12-21 无锡小天鹅股份有限公司 The control method of dryer
US20170183810A1 (en) * 2015-12-25 2017-06-29 Wuxi Little Swan Co., Ltd. Clothes dryer
CN106917252A (en) * 2015-12-25 2017-07-04 无锡小天鹅股份有限公司 Dryer
US20180171536A1 (en) * 2016-12-16 2018-06-21 Lg Electronics Inc. Laundry treatment apparatus and control method of laundry treatment apparatus

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