EP2085507B1 - Wäschebehandlungsverfahren und elektrisches Haushaltsgerät dafür - Google Patents

Wäschebehandlungsverfahren und elektrisches Haushaltsgerät dafür Download PDF

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Publication number
EP2085507B1
EP2085507B1 EP09100049.7A EP09100049A EP2085507B1 EP 2085507 B1 EP2085507 B1 EP 2085507B1 EP 09100049 A EP09100049 A EP 09100049A EP 2085507 B1 EP2085507 B1 EP 2085507B1
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Prior art keywords
drum
tub
laundry
supplemental
blower
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EP09100049.7A
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English (en)
French (fr)
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EP2085507A1 (de
Inventor
Aifen Chen
Chaoyang Wang
Min Wu
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BSH Hausgeraete GmbH
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BSH Hausgeraete GmbH
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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
    • D06F58/30—Drying processes 
    • 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 

Definitions

  • the present invention relates to a method for treating laundry.
  • the method comprises a step performing a spinning process by using a washing machine, and a step performing a drying process, wherein the washing machine comprises a tub, a drum rotatably positioned within the tub, and a blower for blowing airflow into the tub, wherein the drum comprises a plurality of through holes formed in walls thereof.
  • the present invention also relates to an electrical appliance for treating laundry, comprising: a tub; a drum positioned within the tub and having plurality of through holes formed on walls thereof; a motor for driving the drum to rotate; a blower for blowing airflow into the tub; and a control device; wherein the control device is configured that it is operable to be programmed to control implementing of a spinning process and a drying process.
  • JP 2007-236459 A discloses a supplement process step for releasing laundry from an inner wall of a drum rotatable mounted with in the washing machine wherein the supplemental process step is implemented between a spinning process and process for drying and a a blower is activated for blowing warm air into the drum during the supplement process.
  • a method for drying textiles is also disclosed in EP 1 852 542 A1 .
  • Said method comprises a steam treatment sub-sequence for removing crinkles or crease of the laundry whereby during the sub-sequence hot steam is directly applied to the laundry in a drum and/or the laundry is agitated during a tumbling-mode.
  • a washer dryer comprising a heating device for heating air and a condensing device, a condensing device and a device for blowing air to a drum is disclosed in EP 344 549 A1 .
  • EP 0 344 549 A1 discloses a heating apparatus for a combined clothes washing and drying machine, including a housing removably joined with an opening in the upper part of the wash tub and forming part of the wall of the tub.
  • CH 527 950 A discloses a drum washing machine provided for washing and drying laundry, wherein parts of a tub surrounding the drum containing laundry to be treated are provided to be heat exchangers. In addition, this document discloses to warm up laundry after washing and rinsing while cooling machine parts, to improve drying of the laundry.
  • washing machines People usually use washing machines to wash, dehydrate, and dry laundry. It is well known that the process of washing laundry usually comprises washing, rinsing, and spinning processes.
  • a washing machine having a function of drying sometimes called a washer-dryer, also comprises a process for drying the laundry. That process is optional to be selected by the user.
  • a drum type washing machine typically comprises a tub and a drum for containing laundry.
  • the drum is positioned within the tub, and is operable to be driven by a motor to rotate around a shaft. Rotation of the drum drives the laundry to rotate therewith. Meanwhile lifters which are positioned on inner wall of the drum continually lift the laundry and water to a certain height, and then throw them down, thereby to clean the laundry.
  • a rinsing process, and subsequently a spinning process are implemented.
  • the drum should rotate at a relatively high speed in the spinning process.
  • the laundry usually sticks on inner wall of the drum after the spinning process, which results in deformation and wrinkles of the laundry.
  • An object of the present invention is to provide a laundry treatment method which reduces wrinkles that have been created after a spinning process of a washing machine.
  • Another object of the present invention is, when a washing machine having a drying function is used during treatment of laundry, and when drying process is selected, to enhance the drying efficiency, and meanwhile to avoid damage to the laundry from heating.
  • a still further object of the present invention is to provide an electrical appliance which reduces wrinkles created after a spinning process, enhances drying efficiency, and avoids heating damages caused to the laundry.
  • a laundry treatment method which comprises a step performing a spinning process by using a washing machine, and a step performing a process for drying the laundry, wherein said washing machine comprises a tub, a drum rotatably positioned within the tub, and a blower for blowing airflow into the tub, wherein the drum comprises plurality of through holes formed in walls thereof; a supplemental process is implemented after the spinning process, the supplemental process being provided for releasing the laundry from an inner wall of the drum and loosen the pieces of laundry from sticking to each other, and the supplemental process comprises a step that activates the blower to blow airflow into the tub and subsequently into the drum through the through holes.
  • the airflow that is blown by the blower during the supplemental step will impact on the laundry through the through holes, thereby to release the laundry from the inner wall of the drum.
  • the airflow will then release and loosen the pieces of the laundry from sticking to each other. The wrinkles and deformation are thereby reduced.
  • the supplemental process is separate of the drying process. Distinct from the drying process the supplemental process is scheduled to release the laundry from sticking to the drum after the spinning process having completed the washing step, and to loosen tight folds imparted to the laundry during the spinning process.
  • the washing machine comprises a heating device and a condensing device
  • the drying process comprises a step that activates the heating device to heat air, a step that activates the blower to blow the heated air into the tub and the drum, and a step that activates the condensing device to condense steam carried by the air flows from the tub and the drum.
  • the supplemental process is separate of the drying process.
  • the condensing device is not activated in the supplemental process.
  • the laundry released and loosened during the supplemental process will make it easy for hot air to contact each portion of the laundry during the subsequent drying process, thus to enhance drying efficiency. Moreover, since the laundry tumbles with rotating of the drum after being released from sticking, each portion thereof contacts with the hot air alternately, which results in that there is not any portion of the laundry will contact the hot air for a long time, and therefore no heating damage will be caused.
  • a supplemental process is implemented between the spinning process and the process for drying the laundry.
  • the drum is rotating at a predetermined speed. Rotating of the drum facilitates releasing and loosening of the laundry.
  • said drum rotates alternatingly forwardly and reversely, which facilitates releasing and loosening of the laundry.
  • said predetermined speed is between 35 rotations per minute and 60 rotations per minute.
  • said washing machine comprises a heating device
  • said method comprises a step for activating the heating device to heat the air which is being supplied to the tub and the drum by the blower during the supplemental process.
  • the heated air facilitates reducing of the wrinkles, and is propitious to drying of the laundry at the same time.
  • the air that heated by the heating device has a temperature not higher than 50 °C.
  • the blower supplies air into said tub and said drum for a period of time t which is 3 to 15 minutes.
  • an electrical appliance for treating laundry comprises a tub, a drum positioned within the tub and having a plurality of through holes formed on walls thereof, a motor for driving the drum to rotate, a blower for blowing airflow into the tub, and a control device, wherein the control device is configured such that it is operable to be programmed to control implementing of a spinning process and a drying process.
  • the control device controls implementing of a supplemental process after the spinning process, said supplemental process being separate of the drying process, the supplemental process being provided for releasing the laundry from an inner wall of the drum and loosen the pieces of laundry from sticking to each other, and during the supplemental process, the control device activates the blower to blow airflow into the tub and subsequently into the drum through the through holes.
  • the said appliance comprises a heating device and a condensing device
  • the drying process comprises a step that activates the heating device to heat air, a step that activates the blower to blow the heated air into the tub and the drum, and a step that activates the condensing device to condense steam carried by the air flows from the tub and the drum.
  • the control device is programmed that during the supplemental process, the condensing device is not activated.
  • the airflow that is blown by the blower will impact on the laundry through the through holes, and thereby release the laundry from inner wall of the drum.
  • the airflow will then release and loosen the pieces of laundry from sticking to each other.
  • the wrinkles and deformation are thereby reduced.
  • the released and loosened laundry makes it easy for hot air to contact each portion of the laundry, thus to enhance drying efficiency.
  • each portion thereof contacts the hot air alternately, which results in that there is not any portion of the laundry that will contact the hot air for a long time, and therefore no heating damage will be caused.
  • the supplemental process is implemented between the spinning process and the drying process.
  • said control device is programmed that during the supplemental process, the control device controls the motor to drive the drum to rotate.
  • said control device is programmed that during the supplemental process, the control device controls the motor to drive said drum to rotate alternatingly forwardly and reversely.
  • said control device is programmed that during the supplemental process, the blower is controlled by the control device to supply airflow into said tub and said drum for a period of time t which is 3 to 15 minutes.
  • the washing machine 1 comprises a tub 2, a drum 3 positioned within the tub 2, and is driven by a motor 12 to rotate at a high speed.
  • a heating device 5 is positioned above the tub 2 with one end introducing the heated air into the tub 2 and the drum 3, and another end being disposed with a blower 4 for providing air into the heating device 5.
  • a condensing device 6 is disposed at the backside of the tub 2.
  • the condensing device 6 has a first side connecting to an exhaust opening 7 of the tub 2, and a second side connecting to the blower 4.
  • the blower 4, the heating device 5, the tub 2, the drum 3, and the condensing device 6 form a closed air cycling loop 8.
  • the washing machine 1 further comprises a control device 11, which electrically connects to and is programmed to control the motor 12, the blower 4, the heating device 5 and the condensing device 6.
  • the blower 4, the heating device 5 and the condensing device 6 are used only for a drying process of the washing machine 1.
  • the air cycling loop 8 may not comprise a heating device 5 and/or a condensing device 6.
  • the control method for the washing machine 1 is as set forth below:
  • the control device 11 implements washing, rinsing, and spinning processes, or implements a spinning process separately according to the instruction inputted by the user.
  • the control device 11 controls the motor 12 to drive the drum 3 to rotate at a high speed.
  • a supplemental process is implemented.
  • the blower 4 is activated under control of the control device 11 to blow airflow into the tub 2, and subsequently onto the pieces of laundry which are sticking on inner wall of the drum 3, through through-holes 10 formed on wall 9 of the drum 3. Impacted by the airflow, the pieces of laundry are released from inner wall of the drum 3, and are loosened from each other.
  • the condensing device 6 is not activated.
  • the motor 12 is controlled by the control device 11 to drive the drum 3 to rotate at a predetermined speed which is between 35 rotations per minute and 60 rotations per minute.
  • the drum 3 rotates alternatingly forwardly and reversely.
  • the heating device 5 is activated under control of the control device 11 to heat the air provided to the tub 2 and the drum 3.
  • the air heated by the heating device 5 is suitable to have a temperature not higher than a predetermined temperature which is 50 °C such that it may improve the effect of removing wrinkles and meanwhile prevents damage that may be caused to the laundry and the washing machine 1 due to excessively high temperature.
  • Rotation of the drum 3, operation of the heating device 5, and operation of the blower 4 may proceed at the same time, or operation of the blower 4 proceeds with any one of the operation of the heating device 5 and rotation of the drum 3.
  • the blower 4 blows airflow into the tub 2 and the drum 3 for a period of time t which is 3 to 15 minutes.
  • the laundry in the drum 3 is still wet, such that a process for drying the laundry should be induced to dry the laundry.
  • the process for drying laundry has many different manners, for instance, users may take the laundry out of the drum 3 to dry them by airing, or to select a drying process of the washing machine 1.
  • the drying process of the washing machine 1 comprises the following operations: The control device 11 is programmed to control the motor 12 to drive the drum 3 to rotate; the control device 11 activates the heating device 5 to heat air; the control device 11 activates the blower 4 to blow the heated air into the tub 2 and the drum 3; and the control device 11 activates the condensing device 6 to condense steam carried by the air flows from the tub 2 and the drum 3.
  • the supplemental process is separate of the drying process. And in case a drying process is selected, the supplemental process is implemented after the spinning process and before the drying process.
  • the heated air is blown under promotion of the blower 4 into the tub 2 and the drum 3. Due to the impact of the airflow, the laundry which sticks on inner wall of the drum 3 is released, and such as to reduce the wrinkles and deformation of the laundry which are created during the spinning process, whatever after being dried by airing or by the washing machine. And if the pieces of laundry are dried by the washing machine in the drying process, since the pieces laundry have been released from inner wall of the drum 3 and loosened from each other, each portion thereof contacts with the hot air alternately and relatively equal, which results in high drying efficiency, and heating damage is avoided.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Claims (13)

  1. Wäschebehandlungsverfahren, das Folgendes umfasst:
    einen Schritt, bei dem mithilfe einer Waschmaschine ein Schleuderprozess durchgeführt wird,
    einen Schritt, bei dem ein zusätzlicher Prozess durchgeführt wird, und
    einen Schritt, bei dem ein Prozess zum Trocknen der Wäsche durchgeführt wird,
    wobei die Waschmaschine (1) Folgendes umfasst:
    einen Laugenbehälter (2),
    eine Trommel (3), die drehbar in dem Laugenbehälter (2) angeordnet ist,
    ein Gebläse (4) zum Hineinblasen eines Luftstroms in den Laugenbehälter (2),
    eine Heizvorrichtung (5) und
    eine Kondensationsvorrichtung (6),
    wobei die Trommel (3) mehrere Durchgangslöcher (10) umfasst, die in Wänden (9) davon ausgebildet sind,
    wobei der Trocknungsprozess Folgendes umfasst:
    einen Schritt, bei dem die Heizvorrichtung (5) zum Erwärmen von Luft aktiviert wird,
    einen Schritt, bei dem das Gebläse (4) zum Hineinblasen der erwärmten Luft in den Laugenbehälter (2) und die Trommel (3) aktiviert wird, und
    einen Schritt, bei dem die Kondensationsvorrichtung (6) zum Kondensieren von von dem Luftstrom aus dem Laugenbehälter (2) und der Trommel (3) mitgeführtem Dampf aktiviert wird, und
    wobei der zusätzliche Prozess nach dem Schleuderprozess ausgeführt wird und von dem Trocknungsprozess getrennt ist, wobei der zusätzliche Prozess zum Ablösen der Wäsche von einer Innenwand (9) der Trommel (3) und Auflockern der Wäschestücke vorgesehen ist, so dass diese nicht aneinanderkleben, und einen Schritt umfasst, bei dem das Gebläse (4) zum Hineinblasen eines Luftstroms in den Laugenbehälter (2) und danach in die Trommel (3) aktiviert wird,
    dadurch gekennzeichnet, dass:
    die Kondensationsvorrichtung (6) in dem zusätzlichen Prozess nicht aktiviert und der Luftstrom in dem zusätzlichen Prozess von dem Gebläse (4) durch die Durchgangslöcher (10) in die Trommel (3) geblasen wird und über die Löcher (10) auf die Wäsche trifft und diese so von einer Innenwand der Trommel (3) ablöst.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der zusätzliche Prozess zwischen dem Schleuderprozess und dem Prozess zum Trocknen der Wäsche ausgeführt wird.
  3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass sich die Trommel (3) bei dem Schritt in dem zusätzlichen Prozess, bei dem das Gebläse (4) einen Luftstrom in den Laugenbehälter (2) und die Trommel (3) hineinbläst, mit einer vorgegebenen Drehzahl dreht.
  4. Verfahren nach Anspruch 3, dadurch gekennzeichnet, dass sich die Trommel (3) in dem zusätzlichen Prozess abwechselnd vorwärts und rückwärts dreht.
  5. Verfahren nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass die vorgegebene Drehzahl bei 35 bis 60 Umdrehungen pro Minute liegt.
  6. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass es einen Schritt umfasst, bei dem die Heizvorrichtung (5) zum Erwärmen der Luft aktiviert wird, die dem Laugenbehälter (2) und der Trommel (3) von dem Gebläse (4) in dem zusätzlichen Prozess zugeführt wird.
  7. Verfahren nach Anspruch 6, dadurch gekennzeichnet, dass die Temperatur der von der Heizvorrichtung (5) erwärmten Luft nicht mehr als 50°C beträgt.
  8. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Gebläse (4) in dem zusätzlichen Prozess für einen Zeitraum t, der 3 bis 15 Minuten beträgt, dem Laugenbehälter (2) und der Trommel (3) Luft zuführt.
  9. Elektrogerät zum Behandeln von Wäsche, das Folgendes umfasst:
    einen Laugenbehälter (2),
    eine Trommel (3), die in dem Laugenbehälter (2) angeordnet ist und mehrere Durchgangslöcher (10) aufweist, die an Wänden (9) davon ausgebildet sind,
    einen Motor (12) zum Drehen der Trommel (3),
    ein Gebläse (4) zum Hineinblasen eines Luftstroms in den Laugenbehälter (2),
    eine Kondensationsvorrichtung (6),
    eine Heizvorrichtung (5) und
    eine Steuervorrichtung (11),
    wobei die Steuervorrichtung (11) so konfiguriert ist, dass sie sich zum Steuern des Ausführens eines Schleuder- und eines Trocknungsprozesses programmieren lässt,
    wobei die Steuervorrichtung (11) in dem Trocknungsprozess die Heizvorrichtung (5) zum Erwärmen von Luft, das Gebläse (4) zum Hineinblasen der erwärmten Luft in den Laugenbehälter (2) sowie die Trommel (3) und die Kondensationsvorrichtung (6) zum Kondensieren von von dem Luftstrom aus dem Laugenbehälter (2) und der Trommel (3) mitgeführtem Dampf aktiviert und
    wobei die Steuervorrichtung (11) das Ausführen eines zusätzlichen Prozesses nach dem Schleuderprozess steuert, wobei der zusätzliche Prozess von dem Trocknungsprozess getrennt ist und die Steuervorrichtung (11) in dem zusätzlichen Prozess das Gebläse (4) zum Hineinblasen eines Luftstroms in den Laugenbehälter (2) und danach in die Trommel (3) aktiviert,
    dadurch gekennzeichnet, dass
    die Steuervorrichtung (11) so programmiert ist, dass die Kondensationsvorrichtung (6) in dem zusätzlichen Prozess nicht aktiviert wird, und das Gebläse (4) zum Hineinblasen eines Luftstroms durch die Durchgangslöcher (10) in die Trommel (3) aktiviert, so dass er über die Löcher (10) auf die Wäsche trifft und diese so von einer Innenwand der Trommel (3) ablöst.
  10. Elektrisches Gerät nach Anspruch 9, dadurch gekennzeichnet, dass der zusätzliche Prozess zwischen dem Schleuder- und dem Trocknungsprozess ausgeführt wird.
  11. Elektrisches Gerät nach einem der Ansprüche 9 und 10, dadurch gekennzeichnet, dass die Steuervorrichtung (11) so programmiert ist, dass sie bei dem zusätzlichen Prozess den Motor (12) zum Drehen der Trommel (3) steuert.
  12. Elektrisches Gerät nach Anspruch 11, dadurch gekennzeichnet, dass die Steuervorrichtung (11) so programmiert ist, dass sie bei dem zusätzlichen Prozess den Motor (12) zum abwechselnden Vorwärts- und Rückwärtsdrehen der Trommel (3) steuert.
  13. Elektrisches Gerät nach einem der Ansprüche 9 bis 12, dadurch gekennzeichnet, dass die Steuervorrichtung (11) so programmiert ist, dass sie bei dem zusätzlichen Prozess das Gebläse (4) so steuert, dass es für einen Zeitraum t, der 3 bis 15 Minuten beträgt, dem Laugenbehälter (2) und der Trommel (3) einen Luftstrom zuführt.
EP09100049.7A 2008-01-31 2009-01-20 Wäschebehandlungsverfahren und elektrisches Haushaltsgerät dafür Active EP2085507B1 (de)

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EP2581483B1 (de) 2011-10-13 2017-07-19 LG Electronics Inc. Wäschebehandlungsvorrichtung und Verfahren zu ihrer Ansteuerung
CN105332233B (zh) * 2014-07-18 2018-01-16 无锡小天鹅股份有限公司 洗干一体机及其烘干控制方法和烘干控制系统
CN106319835A (zh) * 2015-06-18 2017-01-11 青岛海尔滚筒洗衣机有限公司 滚筒洗衣机快洗控制方法
CN106319912B (zh) * 2015-06-25 2020-04-14 青岛海尔洗衣机有限公司 一种干衣机控制方法及干衣机
CN108779597A (zh) * 2016-03-04 2018-11-09 松下知识产权经营株式会社 滚筒式洗衣机
CN107805927A (zh) * 2016-09-09 2018-03-16 青岛海尔洗衣机有限公司 干衣机
CN109695124A (zh) * 2017-10-20 2019-04-30 青岛海尔滚筒洗衣机有限公司 一种洗衣机的控制方法及洗衣机
CN109695122B (zh) * 2017-10-23 2022-07-26 青岛胶南海尔洗衣机有限公司 用于衣物处理设备的烘干系统和衣物处理设备
CN108265487B (zh) * 2018-03-28 2023-02-21 青岛胶南海尔洗衣机有限公司 干衣设备
WO2019206012A1 (zh) * 2018-04-28 2019-10-31 青岛海尔滚筒洗衣机有限公司 用于衣物处理设备的衣物护理方法及衣物处理设备
CN110541274B (zh) * 2018-05-28 2022-11-15 博西华电器（江苏）有限公司 衣物护理机及其控制方法
CN111321567B (zh) * 2018-12-13 2024-04-12 博西华电器（江苏）有限公司 干衣机
CN112301623B (zh) * 2020-04-26 2022-03-18 无锡小天鹅电器有限公司 衣物处理设备控制方法、装置、设备及存储介质
CN114164613A (zh) * 2020-09-10 2022-03-11 青岛海尔滚筒洗衣机有限公司 洗干一体机的烘干方法

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