EP2723935A1 - Laundry washing and drying machine with air-cooled condenser - Google Patents

Laundry washing and drying machine with air-cooled condenser

Info

Publication number
EP2723935A1
EP2723935A1 EP12728287.9A EP12728287A EP2723935A1 EP 2723935 A1 EP2723935 A1 EP 2723935A1 EP 12728287 A EP12728287 A EP 12728287A EP 2723935 A1 EP2723935 A1 EP 2723935A1
Authority
EP
European Patent Office
Prior art keywords
valve
laundry
condenser
water
air
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.)
Granted
Application number
EP12728287.9A
Other languages
German (de)
French (fr)
Other versions
EP2723935B1 (en
Inventor
Talip Caglar
Atilla Uz
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 EP2723935A1 publication Critical patent/EP2723935A1/en
Application granted granted Critical
Publication of EP2723935B1 publication Critical patent/EP2723935B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air 
    • 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 
    • D06F58/22—Lint collecting 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
    • D06F2103/38—Time, e.g. duration

Definitions

  • the present invention relates to a laundry washing and drying machine comprising an air-cooled condenser.
  • the condenser and the air channels connected thereto are washed by means of a water spraying device connected to the water mains by means of a valve in order to cleanse them of fibers and lint.
  • the condenser is generally washed at the end of the drying process, since, during the drying of the laundry, most of the fibers and lint adhere onto the condenser towards the end of the drying cycle.
  • a small amount of water such as 3 - 4 liters is used for washing the condenser especially in order to reduce the water consumption; however, when the pressure of water coming from water mains is low, the condenser cannot be properly cleansed of the fibers and lint with a small amount of water with low pressure.
  • the aim of the present invention is the realization of a laundry washing and drying machine comprising an air-cooled condenser that is effectively cleansed of the fibers and lint adhering thereon.
  • the laundry washing and drying machine realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof comprises a detergent dispenser wherein the chemical cleaning agents are placed, an air-cooled condenser that condenses the processing air and a first valve connected to the water supply (the water mains), providing the water taken from the mains for washing to be delivered to the detergent dispenser and the tub and a second valve again connected to the water supply, that delivers water onto the condenser, providing the fibers and lint adhering onto the condenser to be removed at the end of the drying process.
  • the control unit opens the second valve while water is being taken from the water supply at the beginning of the laundry washing program and thus some of the water required for the laundry washing program is filled into the tub after washing the air ventilation duct and the condenser.
  • control unit keeps the first valve open for a predetermined period, for example until 5 liters of water is sent in order to flush the cleaning agents in the detergent dispenser, and opens the second valve after closing the first valve.
  • control unit opens the first valve and the second valve at the same time during the water intake from the water supply, closes the first valve after the cleaning agents in the detergent dispenser are flushed and closes the second valve after the tub is filled with the required amount of water.
  • the control unit provides that approximately 10 % of the water needed for the washing of the laundry is filled into the tub from the first valve and through the detergent dispenser, and approximately 90 % from the second valve and through the air ventilation duct - the condenser.
  • the water taken from the water supply for laundry washing is passed through the condenser, thus providing the fibers and lint adhering onto the condenser to be cleansed with plenty of water even if the mains pressure is low; and an additional condenser washing program is not needed to be applied for cleaning the condenser.
  • Figure 1 - is the schematic view of a laundry washing and drying machine.
  • the laundry washing and drying machine (1) comprises a drum (2) wherein the laundry is placed, a tub (3) wherein the drum (2) moves, a detergent dispenser (4) wherein the chemical cleaning agents to be used in the laundry washing process are placed, an air ventilation duct (5) wherein the processing air circulation providing the laundry to be dried at the drying process after the washing process is realized, a fan (6) providing the circulation of the processing air, an air-cooled condenser (7) condensing the processing air, an outer air line (8) that delivers the cooling air received from the outer environment to the condenser (7), providing the cooling of the condenser (7), a heater (9) placed into the air ventilation duct (5), heating the dehumidified processing air coming from the condenser (7) and a control unit (10) controlling the washing-drying programs.
  • the laundry washing program and the laundry drying program are respectively applied.
  • the laundry washing and drying machine (1) furthermore comprises a first valve (11) providing water to be taken from the water supply (S) at the beginning of the laundry washing program and to be sent to the tub (3) through the detergent dispenser (4) and a second valve (12) providing water to be taken from the water supply (S) to be sent to the air ventilation duct (5) and the condenser (7) in order that laundry fibers and lint that are carried with the processing air and that adhere to the air ventilation duct (5) and the condenser (7) are removed.
  • a first valve (11) providing water to be taken from the water supply (S) at the beginning of the laundry washing program and to be sent to the tub (3) through the detergent dispenser (4)
  • a second valve (12) providing water to be taken from the water supply (S) to be sent to the air ventilation duct (5) and the condenser (7) in order that laundry fibers and lint that are carried with the processing air and that adhere to the air ventilation duct (5) and the condenser (7) are removed.
  • the laundry washing and drying machine (1) of the present invention comprises the control unit (10) that opens the second valve (12) during the water intake from the water supply (S) at the beginning of the laundry washing program, thereby providing some of the water required for washing the laundry to be passed through the air ventilation duct (5) and the condenser (7) and to be filled into the tub (3) after the air ventilation duct (5) and the condenser (7) are washed.
  • the second valve (12) is opened by the control unit (10) and consequently wash water passes through the air ventilation duct (5) and the condenser (7) and then is filled into the tub (3).
  • the control unit (10) controls the control unit (10) and consequently wash water passes through the air ventilation duct (5) and the condenser (7) and then is filled into the tub (3).
  • the control unit (10) keeps the first valve (11) open for a predetermined period recorded in its memory for the cleaning agents in the detergent dispenser (4) to be flushed and after closing the first valve (11), opens the second valve (12), thus providing the remainder of the water required for the washing of the laundry to be filled into the tub (3) by following the second valve (12) - air ventilation duct (5) - condenser (7) path.
  • control unit (10) opens the first valve (11) and the second valve (12) at the same time while water is being taken from the water supply (S) at the beginning of the laundry washing program, and keeps the first valve (11) open until the agents in the detergent dispenser (4) are flushed and the second valve (12) open until the amount of water required for the washing of the laundry is filled into the tub (3).
  • first both valves (11, 12) are kept open, thereby decreasing the time required for water to fill the tub (3).
  • the control unit (10) regulates the opening/closing durations of the first valve (11) and the second valve (12), thereby providing 10 % of the water required for the laundry washing program to be filled into the tub (3) through the first valve (11) - the detergent dispenser (4) and 90 % thereof through the second valve (12) - the air ventilation duct (5) - the condenser (7).
  • a separate condenser (7) washing process is not applied for cleansing the air ventilation duct (5) and the condenser (7) of fibers and lint adhering thereon. Fibers and lint adhering onto the condenser (7) are washed away with plenty of water during the water intake at the beginning of the laundry washing program. Even if the pressure of the water supplied from the water mains is low, a successful condenser (7) cleaning is provided and total water consumption is decreased.

Landscapes

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

Abstract

The present invention relates to a laundry washing and drying machine (1) comprising a drum (2) wherein the laundry is placed, a tub (3) wherein the drum (2) moves, a detergent dispenser (4) wherein the chemical cleaning agents to be used in the laundry washing process are placed, an air ventilation duct (5) wherein the processing air circulation providing the laundry to be dried at the drying process after the washing process is realized, an air-cooled condenser (7) condensing the processing air, a control unit (10) controlling the washing-drying programs, a first valve (11) providing water to be taken from the water supply (S) at the beginning of the laundry washing program and to be sent to the tub (3) through the detergent dispenser (4) and a second valve (12) providing water to be taken from the water supply (S) to be sent to the air ventilation duct (5) and the condenser (7) in order that laundry fibers and lint that are carried with the processing air and that adhere to the air ventilation duct (5) and the condenser (7) are removed.

Description

    LAUNDRY WASHING AND DRYING MACHINE WITH AIR-COOLED CONDENSER
  • The present invention relates to a laundry washing and drying machine comprising an air-cooled condenser.
  • In laundry washing and drying machines, air-cooled condensers are widely used, that realize the condensation process by using the outer environment air in the drying process after the washing step. Humid air that comes from over the laundry and passes through the processing air channel is condensed in the condenser cooled by means of the outer environment air, thus the air that is dried by being dehumidified is sent again onto the laundry through the processing air channel. Fibers and lint from the laundry fluttering during the drying process accumulate on the condenser. If not cleaned, fibers and lint clog the air passage lines in the condenser and adversely affect the efficiency of the condenser. The condenser and the air channels connected thereto are washed by means of a water spraying device connected to the water mains by means of a valve in order to cleanse them of fibers and lint. The condenser is generally washed at the end of the drying process, since, during the drying of the laundry, most of the fibers and lint adhere onto the condenser towards the end of the drying cycle. A small amount of water such as 3 - 4 liters is used for washing the condenser especially in order to reduce the water consumption; however, when the pressure of water coming from water mains is low, the condenser cannot be properly cleansed of the fibers and lint with a small amount of water with low pressure.
  • In the state of the art European Patent Application No. EP2169107, a spraying device is described, providing the condenser in a laundry dryer to be washed and thus cleaned of fiber and lint at the end of the drying process.
  • The aim of the present invention is the realization of a laundry washing and drying machine comprising an air-cooled condenser that is effectively cleansed of the fibers and lint adhering thereon.
  • The laundry washing and drying machine realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof comprises a detergent dispenser wherein the chemical cleaning agents are placed, an air-cooled condenser that condenses the processing air and a first valve connected to the water supply (the water mains), providing the water taken from the mains for washing to be delivered to the detergent dispenser and the tub and a second valve again connected to the water supply, that delivers water onto the condenser, providing the fibers and lint adhering onto the condenser to be removed at the end of the drying process.
  • The control unit opens the second valve while water is being taken from the water supply at the beginning of the laundry washing program and thus some of the water required for the laundry washing program is filled into the tub after washing the air ventilation duct and the condenser.
  • In an embodiment of the present invention, the control unit keeps the first valve open for a predetermined period, for example until 5 liters of water is sent in order to flush the cleaning agents in the detergent dispenser, and opens the second valve after closing the first valve.
  • In another embodiment of the present invention, the control unit opens the first valve and the second valve at the same time during the water intake from the water supply, closes the first valve after the cleaning agents in the detergent dispenser are flushed and closes the second valve after the tub is filled with the required amount of water.
  • The control unit provides that approximately 10 % of the water needed for the washing of the laundry is filled into the tub from the first valve and through the detergent dispenser, and approximately 90 % from the second valve and through the air ventilation duct - the condenser.
  • In the laundry washing and drying machine of the present invention, the water taken from the water supply for laundry washing is passed through the condenser, thus providing the fibers and lint adhering onto the condenser to be cleansed with plenty of water even if the mains pressure is low; and an additional condenser washing program is not needed to be applied for cleaning the condenser.
  • The laundry washing and drying machine 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 laundry washing and drying machine.
  • The elements illustrated in the figures are numbered as follows:
    1. Laundry washing and drying machine
    2. Drum
    3. Tub
    4. Detergent dispenser
    5. Air circulation duct
    6. Fan
    7. Condenser
    8. Outer air line
    9. Heater
    10. Control unit
    11. First valve
    12. Second valve
  • The laundry washing and drying machine (1) comprises a drum (2) wherein the laundry is placed, a tub (3) wherein the drum (2) moves, a detergent dispenser (4) wherein the chemical cleaning agents to be used in the laundry washing process are placed, an air ventilation duct (5) wherein the processing air circulation providing the laundry to be dried at the drying process after the washing process is realized, a fan (6) providing the circulation of the processing air, an air-cooled condenser (7) condensing the processing air, an outer air line (8) that delivers the cooling air received from the outer environment to the condenser (7), providing the cooling of the condenser (7), a heater (9) placed into the air ventilation duct (5), heating the dehumidified processing air coming from the condenser (7) and a control unit (10) controlling the washing-drying programs. In the laundry washing and drying machine (1), the laundry washing program and the laundry drying program are respectively applied.
  • The laundry washing and drying machine (1) furthermore comprises a first valve (11) providing water to be taken from the water supply (S) at the beginning of the laundry washing program and to be sent to the tub (3) through the detergent dispenser (4) and a second valve (12) providing water to be taken from the water supply (S) to be sent to the air ventilation duct (5) and the condenser (7) in order that laundry fibers and lint that are carried with the processing air and that adhere to the air ventilation duct (5) and the condenser (7) are removed.
  • The laundry washing and drying machine (1) of the present invention comprises the control unit (10) that opens the second valve (12) during the water intake from the water supply (S) at the beginning of the laundry washing program, thereby providing some of the water required for washing the laundry to be passed through the air ventilation duct (5) and the condenser (7) and to be filled into the tub (3) after the air ventilation duct (5) and the condenser (7) are washed.
  • In the laundry washing and drying machine (1), during the water intake at the beginning of the laundry washing program, the second valve (12) is opened by the control unit (10) and consequently wash water passes through the air ventilation duct (5) and the condenser (7) and then is filled into the tub (3). Thus, fibers and lint adhered onto the condenser (7) during the previous washing-drying program are provided to be cleansed with plenty of water.
  • In an embodiment of the present invention, while water is being taken from the water supply (S) at the beginning of the laundry washing program, the control unit (10) keeps the first valve (11) open for a predetermined period recorded in its memory for the cleaning agents in the detergent dispenser (4) to be flushed and after closing the first valve (11), opens the second valve (12), thus providing the remainder of the water required for the washing of the laundry to be filled into the tub (3) by following the second valve (12) - air ventilation duct (5) - condenser (7) path. By opening the two valves (11, 12) respectively, the pressure of the water flushing the detergent dispenser (4) by means of the first valve (11) and the pressure of the water cleansing the condenser (7) of fibers and lint by means of the second valve (12) are prevented from decreasing.
  • In another embodiment of the present invention, the control unit (10) opens the first valve (11) and the second valve (12) at the same time while water is being taken from the water supply (S) at the beginning of the laundry washing program, and keeps the first valve (11) open until the agents in the detergent dispenser (4) are flushed and the second valve (12) open until the amount of water required for the washing of the laundry is filled into the tub (3). In this embodiment, during the water intake from the water mains, at first both valves (11, 12) are kept open, thereby decreasing the time required for water to fill the tub (3).
  • The control unit (10) regulates the opening/closing durations of the first valve (11) and the second valve (12), thereby providing 10 % of the water required for the laundry washing program to be filled into the tub (3) through the first valve (11) - the detergent dispenser (4) and 90 % thereof through the second valve (12) - the air ventilation duct (5) - the condenser (7).
  • At the beginning of the laundry washing program applied in the laundry washing and drying machine (1), some of the water to be filled into the tub (3) for washing the laundry is passed through the detergent dispenser (4) by the first valve (11) being opened for a short period of time by the control unit (10). Only a small part of water required for washing is needed for the cleaning agents to be flushed from the detergent dispenser (4), the large part of laundry washing water is filled into the tub (3) after being passed through the air ventilation duct (5) and the condenser (7) by means of the second valve (12) being kept open longer than the first valve (11) by the control unit (10). In the laundry washing and drying machine (1), for example 55 liters of water is required for the laundry washing program, approximately 5 liters of this amount is sent to the tub (3) through the detergent dispenser (4) by opening the first valve (11) and approximately 50 liters thereof is sent to the tub (3) through the air ventilation duct (5) and the condenser (7) by opening the second valve (12).
  • In the laundry washing and drying machine (1), a separate condenser (7) washing process is not applied for cleansing the air ventilation duct (5) and the condenser (7) of fibers and lint adhering thereon. Fibers and lint adhering onto the condenser (7) are washed away with plenty of water during the water intake at the beginning of the laundry washing program. Even if the pressure of the water supplied from the water mains is low, a successful condenser (7) cleaning is provided and total water consumption is decreased.
  • 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 (4)

  1. A laundry washing and drying machine (1) comprising a drum (2) wherein the laundry is placed, a tub (3) wherein the drum (2) moves, a detergent dispenser (4), an air ventilation duct (5) wherein the processing air circulation providing the laundry to be dried is realized, an air-cooled condenser (7) condensing the processing air, a control unit (10), a first valve (11) providing water to be taken form the water supply (S) at the beginning of the laundry washing program and to be sent to the tub (3) through the detergent dispenser (4) and a second valve (12) providing water to be taken from the water supply (S) to be sent to the air ventilation duct (5) and the condenser (7) in order that laundry fibers and lint that are carried with the processing air and that adhere to the air ventilation duct (5) and the condenser (7) are removed, characterized in that the control unit (10) for opening the second valve (12) during the water intake from the water supply (S), thereby providing some of the water to be filled into the tub (3) after the air ventilation duct (5) and the condenser (7) are washed.
  2. A laundry washing and drying machine (1) as in Claim 1, characterized in that the control unit (10) for keeping the first valve (11) open until the cleaning agents in the detergent dispenser (4) are flushed and for opening the second valve (12) after closing the first valve (11).
  3. A laundry washing and drying machine (1) as in Claim 1, characterized in that the control unit (10) for opening the first valve (11) and the second valve (12) at the same time and for keeping the first valve (11) open until the agents in the detergent dispenser (4) are flushed and the second valve (12) open until the amount of water required for the washing of the laundry is filled into the tub (3).
  4. A laundry washing and drying machine (1) as in any one of the above claims, characterized in that the control unit (10) for providing 10 % of the water required for the laundry washing to be filled into the tub (3) through the first valve (11) - the detergent dispenser (4) and 90 % thereof through the second valve (12) - the air ventilation duct (5) - the condenser (7).
EP12728287.9A 2011-06-27 2012-06-20 Laundry washing and drying machine with air-cooled condenser Active EP2723935B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2011/06331A TR201106331A1 (en) 2011-06-27 2011-06-27 A washing and drying machine with air-cooled condenser.
PCT/EP2012/061825 WO2013000787A1 (en) 2011-06-27 2012-06-20 Laundry washing and drying machine with air-cooled condenser

Publications (2)

Publication Number Publication Date
EP2723935A1 true EP2723935A1 (en) 2014-04-30
EP2723935B1 EP2723935B1 (en) 2018-11-14

Family

ID=46319786

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12728287.9A Active EP2723935B1 (en) 2011-06-27 2012-06-20 Laundry washing and drying machine with air-cooled condenser

Country Status (4)

Country Link
EP (1) EP2723935B1 (en)
CN (1) CN103620106A (en)
TR (2) TR201106331A1 (en)
WO (1) WO2013000787A1 (en)

Cited By (1)

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CN111197235A (en) * 2018-11-16 2020-05-26 青岛海尔洗衣机有限公司 Condenser cleaning method and washing-drying integrated machine

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EP2999816B1 (en) * 2013-05-23 2018-06-27 Arçelik Anonim Sirketi Water jet device for eliminating lint accumulation in a laundry treatment machine's air-cooled condenser
WO2016162230A1 (en) * 2015-04-06 2016-10-13 Arcelik Anonim Sirketi A laundry washing and drying machine comprising a condenser
CN106884292A (en) * 2015-12-15 2017-06-23 青岛海尔滚筒洗衣机有限公司 A kind of efficient clothes washer/dryer and control method
CN109989219B (en) * 2017-12-29 2022-09-16 重庆海尔滚筒洗衣机有限公司 Control method of washing and drying integrated machine and washing and drying integrated machine
CN117904845A (en) * 2024-01-31 2024-04-19 金羚电器有限公司 Automatic throwing system of washing and drying integrated machine

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KR100925739B1 (en) * 2007-09-13 2009-11-11 엘지전자 주식회사 Ductless dryer
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Cited By (2)

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Publication number Priority date Publication date Assignee Title
CN111197235A (en) * 2018-11-16 2020-05-26 青岛海尔洗衣机有限公司 Condenser cleaning method and washing-drying integrated machine
CN111197235B (en) * 2018-11-16 2023-06-30 青岛海尔洗衣机有限公司 Condenser cleaning method and washing and drying machine

Also Published As

Publication number Publication date
WO2013000787A1 (en) 2013-01-03
EP2723935B1 (en) 2018-11-14
TR201718097T3 (en) 2017-12-21
CN103620106A (en) 2014-03-05
TR201106331A1 (en) 2013-01-21

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