EP2171150B1 - Waschmaschine/trockner - Google Patents

Waschmaschine/trockner Download PDF

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Publication number
EP2171150B1
EP2171150B1 EP08786564A EP08786564A EP2171150B1 EP 2171150 B1 EP2171150 B1 EP 2171150B1 EP 08786564 A EP08786564 A EP 08786564A EP 08786564 A EP08786564 A EP 08786564A EP 2171150 B1 EP2171150 B1 EP 2171150B1
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EP
European Patent Office
Prior art keywords
condenser
evaporator
washer
dryer
throttle
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.)
Not-in-force
Application number
EP08786564A
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English (en)
French (fr)
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EP2171150A1 (de
Inventor
Umut Esat 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
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Filing date
Publication date
Application filed by Arcelik AS filed Critical Arcelik AS
Publication of EP2171150A1 publication Critical patent/EP2171150A1/de
Application granted granted Critical
Publication of EP2171150B1 publication Critical patent/EP2171150B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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    • 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 washer/dryer of which the drying effectiveness is increased.
  • the drying air circulates along a closed cycle.
  • the humidity and temperature values of this air is changed by the heat exchange units over which it passes during the drying cycle and drying is performed by absorbing the humidity of the item while passing through the region containing the items to be dried.
  • an evaporator cold heat exchanger
  • a condenser hot heat exchanger
  • a closed fluid cycle is present in the system. In this cycle maintained by pipes that passes over the condenser and the evaporator, throttle elements such as the capillary tubes or expansion valve for adjusting the temperature, pressure and flow direction of the fluid, and direction valves and a compressor are provided.
  • drying can be performed at different temperatures and in different durations.
  • energy consumption is reduced but the drying duration is prolonged and the dried laundry is not hygienic.
  • energy consumption increases. Therefore, in washer/dryers that operate in a single mode, the intended result cannot be attained in at least one of washing/drying duration, hygiene and consumed energy variables.
  • the user does not have the choice of making a selection in accordance with the current conditions.
  • Various implementations have been developed wherein heat exchange elements are used in different configurations in washer/dryers in order to overcome these problems encountered during usage.
  • Japanese Patent Document No JP1212599 a washer/dryer is explained wherein the amount and the path followed by the fluid between the evaporators is changed by a control valve and the drying process is performed in two different modes.
  • EP1154065 is about a heat pump dryer
  • an electric heater is used in addition to the present drying system and the control is provided by means of sensors.
  • the aim of the present invention is the realization of a washer/dryer having a high drying performance that selectively performs fast hygienic drying and low energy consumption programs.
  • the washer/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 wherein the laundry is emplaced, an evaporator that gasifies the refrigerant fluid by vaporizing, a condenser that liquefies the refrigerant fluid by condensing, a fan providing the drying air flow, a compressor, directional valves used for determining the flow paths of the refrigerant fluid and throttle elements that decrease the pressure and temperature of the refrigerant fluid.
  • the washer/dryer of the present invention at least two throttle elements and at least one valve are provided between the condenser and the evaporator.
  • the refrigerant fluid is enabled to follow different paths in reaching from the condenser to the evaporator by means of the valve and by passing on this path through, at least one, throttle elements of different numbers and/or qualifications thereby controlling the drying rate and respectively the amount of energy consumption.
  • the washer/dryer is enabled to operate at different modes.
  • the refrigerant fluid passes through at least two different throttle elements by using the valve as desired.
  • the heat pump is operated at two different modes and the drying process is performed at two different modes by maintaining decreases at least in two different levels of temperature and pressure.
  • One of these modes is adjusted to provide low energy consumption and the other to provide fast drying.
  • At least one bi-directional valve is provided between the condenser and the evaporator and at least two throttle elements that are connected in parallel.
  • the throttle elements are capillary tubes of different sizes and/or diameters, the refrigerant element passes over the throttle elements by means of the valve, providing temperature and pressure decreases in at least two different levels.
  • At least one electric heater is provided in the drying cycle.
  • the heater can be activated for performing fast and hygienic drying for selectively and effectively maintaining fast and hygienic drying.
  • the condenser used previously as a single piece is divided into two and an additional valve and at least one throttle element are provided therebetween.
  • the drying process can be performed as when the condenser is a single piece.
  • the evaporator and the other connected condenser are used as the cold heat exchanger.
  • the refrigerant fluid leaving the second condenser passes through at least one throttle on the way to the evaporator, thus temperature and pressure can be decreased one step further. Consequently, the previous function of the evaporator by itself is performed by the evaporator and the second condenser together.
  • the temperature of the drying air can be raised as much as desired by adding a heater to the drying cycle. By reinforcing with a heater, temperature of air is raised further and the moisture holding capacity of air entering the drum is increased. With this embodiment a faster drying is provided.
  • the exchanger surface areas functioning as the evaporator and condenser are also changed thereby changing the heat energy expelled by the condenser and the heat energy absorbed by the evaporator.
  • the drying process can be performed in a greater number of different modes instead of two by using multi-directional valves and more than two throttle elements.
  • drying can be performed at different ambient temperatures consuming less energy or providing a faster drying.
  • the washer/dryer of the present invention can selectively perform drying with low energy consumption or very fast drying when desired at different ambient temperatures or conditions according to various laundry amounts or types by using multi-directional valves, throttle elements or heaters in different profiles.
  • hygienic drying can be provided at a high temperature as a different program or by including in the drying program.
  • hygienic drying with low energy or fast and hygienic drying can be performed.
  • FIG. 1 - is the schematic view of the embodiment wherein the throttle elements are connected in parallel.
  • FIG. 2 - is the schematic view of the embodiment wherein the throttle elements are connected in series.
  • Figure 3 - is the schematic view of the embodiment wherein the condenser is divided into two.
  • Figure 4 - is the schematic view of another embodiment wherein the condenser is divided into two.
  • the washer/dryer (1) of the present invention preferably a heat pump dryer, comprises a drum (2) wherein the item to be dried contacts with air in a closed cycle in which the air flows in a certain direction, an evaporator (3) (cold heat exchanger) that cools and dehumidifies the warm and humid air passing over, at least one condenser (4) (hot heat exchanger) that heats the air passing thereover, and a fan (5) that maintains continuation in circulation of air during the cycle.
  • evaporator (3) cold heat exchanger
  • condenser (4) hot heat exchanger
  • the washer/dryer (1) comprises a compressor (6) used for increasing the temperature and pressure of the refrigerant fluid, at least two throttle elements (8, 108) of different numbers and/or qualifications, disposed between the condenser (4) and the evaporator (3) and at least one valve (7) situated prior to the throttle elements (8, 108) between the condenser (4) and the evaporator (3), controlled such that the fluid passes through at least one of the throttle elements (8, 108) to reach the evaporator (3).
  • the refrigerant fluid passes through the evaporator (3), the compressor, at least one condenser (4), at least one valve (7, 107) and at least one throttle element (8, 108).
  • the temperature and pressure of the fluid decreases while passing through the evaporator (3) and the compressor (6)
  • the temperature and pressure increases while passing through the evaporator (3) and the compressor (6) and the cycle continues thus.
  • Heat transfer occurs between the fluid and the air passing through the condenser (4) and the evaporator (3) and thus the humidity and temperature of the air passing through the condenser (4) and the evaporator (3) changes as explained above.
  • the refrigerant fluid is enabled to complete the refrigerant cycle from different paths and passing through, at least one, throttle elements (8, 108) of different numbers and/or qualifications on this path.
  • the fluid passes through the throttle elements (8, 108) of different qualifications and/or paths formed by these elements (8, 108) being connected in different parallel/series combinations by means of the valve (7) situated between the condenser (4) and the evaporator (3) and at least two throttle elements (8, 108).
  • the valve (7) situated between the condenser (4) and the evaporator (3) and at least two throttle elements (8, 108).
  • two throttle elements (8, 108) on two different paths being parallel to each other and a bi-directional valve (7) is used between the condenser (4) and the evaporator (3).
  • the refrigerant fluid is made to pass over any one of the throttle elements (8, 108) by using the bi-directional valve (7) to direct the fluid to different paths.
  • the throttle elements (8, 108) are qualified to maintain temperature and pressure decrease at two different levels, the washer/dryer (1) can operate at two different modes and the drying process can be performed at two different conditions.
  • the throttle elements (8, 108) are capillary tubes having different diameters and/or lengths. The alternative of the fluid passing through the path wherein the temperature and pressure decrease will be more can be adjusted as the fast drying mode and the alternative of passing through the path wherein temperature and pressure decrease will be less as the mode providing low energy consumption.
  • the said throttle elements (8, 108) are placed in series so that the washer/dryer (1) operates at two different modes and the drying process is performed at two different modes.
  • the valve (7) maintains the refrigerant fluid to pass over only one throttle element (108) or from both of the throttle elements (8, 108).
  • temperature and pressure decreases are provided at two different levels.
  • the washer/dryer (1) comprises two condensers (104, 204). These two condensers (104, 204) are disposed in series on the flow path of the refrigerant fluid.
  • the fluid passes from the first condenser (104), the second condenser (204) and the evaporator (3) in that order.
  • a valve (7) and a throttle element (8) are provided between the condensers (104, 204).
  • Another throttle element (108) is situated between the second condenser (204)) and the evaporator (3).
  • the valve (7) directs the refrigerant fluid from the first condenser (104) to the second condenser (204) directly or over the throttle element (8).
  • both of the condensers (104, 204) function as hot heat exchangers.
  • the second condenser (204) functions as a cold heat exchanger. Temperature and pressure decreases one step further in the fluid that leaves the second condenser (204) by passing again through the throttle element (108).
  • a throttle element (108) and a valve (7) are added between the second condenser (204) and the evaporator (3).
  • the valve (7) directs the refrigerant fluid from the second condenser (204) to the evaporator (204) directly or over the throttle element (108).
  • the throttle elements (8, 108) can be used by connecting in series or parallel. Consequently, the fluid reaches from the first condenser (104) to the evaporator (3) passing through both throttle elements (8, 108) or only over the throttle element (8) between the first condenser (104) and the second condenser (204) or over the throttle element (108) between the second condenser (204) and the evaporator (3).
  • the washer/dryer (1) can be operated by choosing one of the modes of low energy consumption, fast drying or hygienic drying.
  • the washer/dryer (1) comprises a heater disposed between the condensers (4 and 104).
  • the heater increases drying performance and plays a role in performing fast drying.
  • Using the heater and disposing the compressor (6) after the evaporator (3) or the condenser (4) can be applied at the same time and the hygienic drying mode can be thus performed.
  • Temperature increases when the heater is activated for fast drying.
  • the heat received from the evaporator (3) has to be increased also.
  • the valve (7) directs the refrigerant fluid from the first condenser (104) to the second condenser (204) over the throttle element (8).
  • the second condenser (204) functions as a cold heat exchanger.
  • the compressor (6) is disposed on the flow path of drying air, after the evaporator (3) or the condenser (4) depending on the air flow direction.
  • the heat energy generated from the compressor (6) is used in heating the drying air and the drying performance of the washer/dryer (1) is increased.
  • the washer/dryer (1) of the present invention different levels of decreases in the pressure and temperature of the refrigerant fluid are provided by using a valve (7) and at least two throttle elements (8) between the condenser (4) and the evaporator (3). Consequently, the washer/dryer (1) can be operated at various modes such as fast and low energy consumption.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Drying Of Solid Materials (AREA)
  • Centrifugal Separators (AREA)

Claims (5)

  1. Wasch-/Trockenmaschine (1), umfassend eine Trommel (2), in der der zu trocknende Artikel in Kontakt mit Luft gelangt, einen Verdampfer (3), der die warme und feuchte Luft, die über in strömt, kühlt und entfeuchtet, mindestens einen Kondensator (4, 104, 204), der die darüber strömende Luft erwärmt, ein Gebläse (5), das während des Zyklus eine kontinuierliche Zirkulation der Luft aufrechterhält, und einen Kompressor (6), der das Kühlfluid pumpt, und gekennzeichnet durch mindestens zwei Drosselelemente (8, 108) in unterschiedlicher Anzahl und/oder Qualifikation, die zwischen dem Kondensator (4) und dem Verdampfer (3) angeordnet sind, und mindestens ein Ventil (7), das vor den Drosselelementen (8, 108) zwischen dem Kondensator (4) und dem Verdampfer (3) angeordnet ist, und das derart geregelt ist, dass das Fluid den Verdampfer (3) erreicht, indem es durch mindestens eines der Drosselelemente (8, 108) fließt.
  2. Wasch-/Trockenmaschine (1) nach Anspruch 1, dadurch gekennzeichnet, dass die Drosselelemente (8, 108) parallel zueinander angeordnet sind, derart, dass eine Temperaturabnahme und eine Druckabnahme auf zwei verschiedenen Pegeln gehalten werden.
  3. Wasch-/Trockenmaschine (1) nach Anspruch 1, dadurch gekennzeichnet, dass die Drosselelemente (8, 108) in Reihe angeordnet ist, und dass das Ventil (7) dafür sorgt, dass das Kühlfluid über nur ein Drosselelement (108) oder über beide Drosselelemente (8, 108) fließt.
  4. Wasch-/Trockenmaschine (1) nach Anspruch 1, dadurch gekennzeichnet, dass mindestens zwei Kondensatoren (104, 204) in Reihe miteinander verbunden sind und dass das Ventil (7) derart zwischen den Kondensatoren (104, 204) angeordnet ist, dass das Fluid direkt oder über das Drosselelement (8) und das Drosselelement (108), das zwischen dem zweiten Kondensator (204) und dem Verdampfer (3) angeordnet ist, vom ersten Kondensator (104) zum zweiten Kondensator (204) fließt.
  5. Wasch-/Trockenmaschine (1) nach Anspruch 4, dadurch gekennezichnet, dass das Ventil (7) und das Drosselelement (108) derart zwischen dem zweiten Kondensator (204) und dem Verdampfer (3) angeordnet sind, dass das Fluid direkt oder über das Drosselelement (108) vom zweiten Kondensator (204) zum Verdampfer (3) fließt.
EP08786564A 2007-08-02 2008-07-29 Waschmaschine/trockner Not-in-force EP2171150B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR200705392 2007-08-02
PCT/EP2008/059926 WO2009016173A1 (en) 2007-08-02 2008-07-29 A washer/dryer

Publications (2)

Publication Number Publication Date
EP2171150A1 EP2171150A1 (de) 2010-04-07
EP2171150B1 true EP2171150B1 (de) 2010-11-10

Family

ID=39816935

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08786564A Not-in-force EP2171150B1 (de) 2007-08-02 2008-07-29 Waschmaschine/trockner

Country Status (5)

Country Link
EP (1) EP2171150B1 (de)
AT (1) ATE487821T1 (de)
DE (1) DE602008003446D1 (de)
ES (1) ES2352637T3 (de)
WO (1) WO2009016173A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2586906A1 (de) * 2011-10-25 2013-05-01 Electrolux Home Products Corporation N.V. Wäschetrockner mit Wärmepumpensystem
EP2586905A1 (de) * 2011-10-25 2013-05-01 Electrolux Home Products Corporation N.V. Wäschetrockner mit Wärmepumpensystem

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CN102906327B (zh) * 2010-06-04 2015-09-23 阿塞里克股份有限公司 节能的热电热泵衣物干燥机
EP2489774B1 (de) * 2011-02-18 2015-06-17 Electrolux Home Products Corporation N.V. Wärmepumpenwäschetrockner
DE102011078922A1 (de) * 2011-07-11 2013-01-17 BSH Bosch und Siemens Hausgeräte GmbH Abluft-Wäschetrocknung mit Zusatzheizung und Wärmetauscheraggregat
EP2594688B1 (de) * 2011-11-21 2016-08-31 Electrolux Home Products Corporation N.V. Wäschetrockner mit Wärmepumpensystem
DE102011087874B4 (de) * 2011-12-07 2014-09-25 Lavatec Laundry Technology Gmbh Trockner zur Trocknung von Waschgut
EP2703551B1 (de) * 2012-09-04 2015-01-28 Whirlpool Corporation Kühlsystem für Wärmepumpentrockner und Wärmepumpentrockner mit solch einem Kühlsystem
KR102009278B1 (ko) * 2012-10-22 2019-08-09 엘지전자 주식회사 운전모드에 따라 변경이 가능한 팽창변을 구비한 의류건조기 및 이의 운전방법
KR101977032B1 (ko) * 2013-01-23 2019-05-13 웅진코웨이 주식회사 의류 건조기
KR102094340B1 (ko) 2014-03-17 2020-03-30 삼성전자주식회사 건조장치를 구비하는 가전제품
CN104976817B (zh) * 2014-04-08 2018-12-11 杭州三花研究院有限公司 换热器组件及其应用
CN104976819B (zh) * 2014-04-08 2018-10-19 杭州三花研究院有限公司 换热器组件及其应用
CN104976821B (zh) * 2014-04-08 2018-11-09 杭州三花研究院有限公司 换热器组件及其应用
CN104976820B (zh) * 2014-04-08 2018-08-31 杭州三花研究院有限公司 换热器组件及其应用
CN104976824B (zh) * 2014-04-08 2018-11-09 杭州三花研究院有限公司 换热器组件及其应用
CN104976827B (zh) * 2014-04-08 2018-12-11 杭州三花研究院有限公司 换热器组件及其应用
CN104976818B (zh) * 2014-04-08 2018-10-19 杭州三花研究院有限公司 换热器组件及其应用
EP3351678A1 (de) * 2017-01-24 2018-07-25 Whirlpool Corporation Maschine zum trocknen von wäsche mit einer wärmepumpeneinheit und betriebsverfahren dafür
CN110965292A (zh) * 2018-09-29 2020-04-07 青岛海尔滚筒洗衣机有限公司 一种衣物处理装置及其控制方法
EP4339355A1 (de) 2022-09-19 2024-03-20 Onnera Laundry Barcelona S.A. Wäschetrockner und verfahren zum trocknen von wäsche

Family Cites Families (2)

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Publication number Priority date Publication date Assignee Title
JP4413639B2 (ja) * 2004-02-16 2010-02-10 パナソニック株式会社 洗濯乾燥機
US20070107255A1 (en) * 2004-04-09 2007-05-17 Matsushita Electric Industrial Co., Ltd. Drying apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2586906A1 (de) * 2011-10-25 2013-05-01 Electrolux Home Products Corporation N.V. Wäschetrockner mit Wärmepumpensystem
EP2586905A1 (de) * 2011-10-25 2013-05-01 Electrolux Home Products Corporation N.V. Wäschetrockner mit Wärmepumpensystem
WO2013060435A1 (en) * 2011-10-25 2013-05-02 Electrolux Home Products Corporation N.V. A laundry dryer with a heat pump system
WO2013060452A1 (en) * 2011-10-25 2013-05-02 Electrolux Home Products Corporation N.V. A laundry dryer with a heat pump system
AU2012327513B2 (en) * 2011-10-25 2017-03-30 Electrolux Home Products Corporation N.V. A laundry dryer with a heat pump system
AU2012327496B2 (en) * 2011-10-25 2017-03-30 Electrolux Home Products Corporation N.V. A laundry dryer with a heat pump system

Also Published As

Publication number Publication date
WO2009016173A1 (en) 2009-02-05
EP2171150A1 (de) 2010-04-07
ES2352637T3 (es) 2011-02-22
ATE487821T1 (de) 2010-11-15
DE602008003446D1 (de) 2010-12-23

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