EP2169107A1 - Séchoir avec un dispositif de diffusion - Google Patents

Séchoir avec un dispositif de diffusion Download PDF

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Publication number
EP2169107A1
EP2169107A1 EP09171401A EP09171401A EP2169107A1 EP 2169107 A1 EP2169107 A1 EP 2169107A1 EP 09171401 A EP09171401 A EP 09171401A EP 09171401 A EP09171401 A EP 09171401A EP 2169107 A1 EP2169107 A1 EP 2169107A1
Authority
EP
European Patent Office
Prior art keywords
spraying
air
drying appliance
channel
appliance according
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
EP09171401A
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German (de)
English (en)
Other versions
EP2169107B1 (fr
Inventor
Jie Gao
Jihao Li
Yanglei Zhu
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
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.)
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Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP2169107A1 publication Critical patent/EP2169107A1/fr
Application granted granted Critical
Publication of EP2169107B1 publication Critical patent/EP2169107B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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 
    • D06F58/24—Condensing arrangements

Definitions

  • the present invention relates to an improved drying appliance, such as a dryer or a washer-dryer, and in particular to a fabric drying appliance which comprises a drum, a condensing device, a drying channel for introducing processing air into the drum, and a spraying device associated with the condensing device such that it is operable to flush off fluff adhered on the condensing device.
  • a fabric drying appliance which comprises a drum, a condensing device, a drying channel for introducing processing air into the drum, and a spraying device associated with the condensing device such that it is operable to flush off fluff adhered on the condensing device.
  • a drying appliance such as dryer or washer-dryer for use as a household appliance, has the following drying process: After being heated by a heating device, dry processing air is heated within a heating channel, and is driven into a drum wherein heat is exchanged between the heated processing air and the wet fabric to evaporate moisture from the fabric into the processing air, such that the processing air carries moisture from the fabric and moves into the condensing device through an exit which is formed on the drum. Condensed by the condensing device, the moisture of the processing air is turned to water, and the processing air becomes relatively dry and cool. The condensed processing air is then driven by a fan to a heating channel and heated again to enter the drum in a next drying cycle.
  • fluff which is dust-like fragments of textile fibers is always produced and carried by the moist processing air into the condensing assembly, and then is adhered on inner walls of the condensing device, which influences effect of condensing or blocks up the processing air. And also, fluff may even be driven into the fan and the heating device, which may cause dangers.
  • a spraying device to clean the condensing device and possibly other parts of the drying device by water spray may be provided.
  • Some drawbacks are commonly existent in the spraying devices of prior art, which are: the effective area that is cleaned by the water spray is extremely limited; water pressure is dispersed, and force of flushing is not big enough, and so on.
  • EP 0 636 732 A1 disclosed a presently known spraying device uses spraying water, which is splashed from a certain baffle, to wash off fluff from the condensing device. With such structure, potential energy of the water is somewhat consumed when it hits the baffle, so the force of flushing is weakened. And under most conditions, a spraying device only has one spraying hole, or otherwise has several spread distributed spraying holes, and thus the flushing area is extremely limited, or the water pressure is dispersed, which also decrease effect of condensing.
  • condensing devices there are several sorts of condensing devices, one of which uses water and others use other coolant, such as air, for condensation.
  • a condensing device of other coolant is preferred for saving water, but meanwhile has much more problems with the fluff, which will be described in detail hereinafter.
  • the spraying water of a water-condensing device will carry a portion of fluff in the processing air, and also will flush at least a portion of the inner walls of the condensing device.
  • An air-condensing device usually imports fresh air from outside of the drying appliance. The fresh air will then cool down the processing air within the condensing device, and subsequently flows out of the drying appliance.
  • the condensing device usually has several processing air channels, which usually have elongate section such as to make the processing air be well cooled. So it is quite difficult to completely wash each processing air channel.
  • DE 37 38 031 C1 discloses such a known spraying device for the air-condensing device: the spraying device has a water inlet tube and a series of spraying heads distributed along a line towards the flowing direction of the water. And each of the spraying head associates with a processing air channel. Each spraying head has only one spraying direction, such that the effective area is relatively small.
  • the disadvantages of the system as set forth above are: Firstly, the spraying heads are aligned in a line, such that the water pressure is dispersed and unsymmetrical, and the flush force of the spraying water is relatively small and unsymmetrical.
  • the spraying heads only wash the processing air channels, such that the processing air inlet channel and outlet channel which are connected to the condensing device can not be washed; and also, each spraying head only has one spraying hole, and the effective area is relatively small, such that the processing air channels can not be fully washed.
  • An object of the present invention is to provide an improved drying appliance, which overcomes the foregoing drawbacks of the prior art, and has more reliable effect of flushing off fluff.
  • a drying appliance such as a dryer or a washer-dryer
  • a drying appliance which comprises a drum, a drying channel for introducing processing air into the drum, a condensing device, a spraying device associated with the condensing device, said spraying device having a water inlet and an end portion, wherein the spraying device further has a spraying head which is provided on the end portion thereof; and wherein said spraying head is in the form of a cup, and has plurality of spraying holes.
  • the spraying head is provided on the end portion of the spraying device, the water pressure is thereby concentrated, and because of the cup-shaped form of the spraying head, waste of potential energy is minimized, such that the flushing force is relatively large, and the spraying area is relatively large, which is good for flushing off fluff and good for condensing as well.
  • the spraying holes oriented in different directions. So the effective flushing area is relatively large.
  • the spraying head has an axis, around which the spraying holes are distributed. Therefore, the water pressure is relatively symmetrical, and also enlarges the effective flushing area.
  • a respective wedge-shaped splitter disposed between each two spraying holes. Therefore, water is smoothly guided into the spraying holes.
  • the wedge-shaped splitters connected with each other at bottom ends thereof, and have knife-edges joining at a central point such as to form wedge-shaped slots radially distributed and beginning from the point, wherein the wedge-shaped slots form a portion of the spraying holes. Therefore, the water comes from the water inlet tube will not be blocked by any surface; instead, it will be well guided to the slots smoothly.
  • the spraying head has a round wall on which the spraying holes are formed. Since the spraying holes are formed on a round wall, they are three-dimensionally disposed, and the water ejected from the spraying holes has relatively big work area.
  • said condensing device has at least one processing air channel and at least one cooling air channel arranged in heat-exchanging relation to each other, such that water is saved for condensing, and good spraying device is especially need for such kind of condensing device.
  • the at least one processing air channel comprising two ends respectively connected to an air-inlet channel and an air-outlet channel
  • said spraying device is mounted on one of the air-inlet channel and the air-outlet channel. Therefore, the air-inlet channel and the air-outlet channel can also be washed from fluff.
  • said at least one processing air channel is substantially vertically disposed, and the spraying device is disposed there above in relation to a direction of gravity. Therefore, water drops from the spraying device and onto the processing air channel. Because of the gravity, the water has more reliable flushing force.
  • the spraying device is mounted on a topmost portion of the one of the air-inlet channel and the air-outlet channel. Therefore, the air-inlet channel or air-outlet channel on which the spraying device is mounted can be fully cleaned.
  • said axis of the spraying head aligned with a central portion of said at least one processing air channel. Therefore, water from the spraying device is symmetrically spread.
  • the spraying head is disposed below the water inlet tube, such that energy of the water flow is increased when it drops from the water inlet tube to the spraying head, and thus the water spray has relatively big flushing force.
  • the spraying device has an interior that is connected to an outside of the drying appliance by an air-guiding connection, and includes a water line projecting through the interior and has an opening within the interior.
  • the inventive drying appliance is embodied in a household appliance, in particular in a laundry dryer or a washer/dryer.
  • the present invention is applicable for drying appliance having either an air-cooled or water-cooled condenser, or even having a condenser cooled by any coolant, while in the embodiments which will are described hereinbelow, an air-cooled condenser is used as an example.
  • a drying appliance 1 is under drying process.
  • dry processing air 3 is heated by a heating device 2 within a heating channel 4, and is driven into a drum 5 whereat heat exchanged between the heated processing air 3 and wet fabric, such that the processing air 3 carries moisture from the fabric and moves into the condensing device 7 through a condensing air-inlet channel 6.
  • Condensed by the condensing device 7, the moisture of the processing air 3 is turned to water, and the processing air 3 becomes relatively dry and cool.
  • the condensed processing air 3 is then driven by a first fan 8 through a condensing air-outlet channel 9 to the heating channel 4 to enter a next dying cycle.
  • the condensing device 7 is connected to the condensing air-inlet channel 6 and the condensing air-outlet channel 9 at its two ends, and has at least one processing air channel 11 and at least one cooling air channel 12 which are arranged in heat-exchanging relation to each other.
  • the at least one processing air channel 11 is substantially perpendicular to a bottom surface 14 of a housing 13 of the drying appliance 1.
  • a spraying device 10 is mounted on the condensing air-outlet channel 9, and is above the condensing device 7 in relation to a direction of gravity.
  • the processing air channel 11 may be inclined or parallel to the bottom surface 14.
  • the spraying device 10 may be mounted on the condensing air-inlet channel 6.
  • Fresh cooling air 15 from outside of the housing 13 is driven by a second fan 16 into a cooling air inlet channel 17, and subsequently into the cooling air channel 12 whereat heat exchanged between the cooling air 15 and the processing air 3 which is in the processing air channel 11. Then the processing air 3 is cooled down, and the cooling air 15 is discharged out of the housing 13 through a cooling air outlet channel 18.
  • the spraying device 10 comprises a water inlet tube 19 and an end portion 33.
  • a spraying head 20 is disposed on the end portion 33.
  • a guiding device 21 disposed between the water inlet tube 19 and the spraying head 20 for guiding the water from the water inlet tube 19 to the spraying head 20.
  • the guiding device 21 may connected with the water inlet tube 19 such as to form a portion of the water inlet tube 19.
  • the spraying head 20 is in the form of a cup, at the end of which a semi-spherical wall 22 is formed. Pluralities of spraying holes 23 with different directions are formed on the semi-spherical wall 22.
  • the spraying holes 23 are radially distributed around a central axis 24 of the spraying head 20.
  • the spraying head 20 may have other cup shape.
  • cup shape can be defined as a tridimensional component which has a continuously connected bottom and side wall, and an opening opens at one end.
  • the cup shape may also have other appropriate definition.
  • the spraying head 20 may also be tapered, columned, or has other shape of curved wall or prismatic walls.
  • the spraying holes 23 may have other form of distributing, for instance, distributed axially and radially at the same time with multiple layers.
  • the spraying device 10 has an interior 30 that is connected to outside of the drying appliance 1 by an air-guiding connection 31, and includes a water line defined by the water inlet tube 19 and the guiding device 21 projecting through the interior 30 and has an opening 32 within the interior 30.
  • wedge-shaped splitters 25 are formed between each two spraying holes 23.
  • the wedge-shaped splitters 25 connected with each other at bottom ends thereof, and have knife-edges 26 join at a central point 27 such as to form wedge-shaped slots 28 radially distributed and beginning from the point 27.
  • the wedge-shaped slots 28 form a portion of the spraying holes 23.
  • the point 27 is on the central axis 24 of the spraying head 20. Because of the structure, the water is divided by the knife-edges 26 when it flows to the bottom of the spraying head 20, and is guided to the spraying holes 23 smoothly.
  • the axis 24 of the spraying head 20 aligned with a central portion 29 of the at least one processing air channel 11.
  • the spraying device 10 is preferably mounted on a topmost portion of the condensing air-outlet channel 9. Therefore the condensing air-outlet channel 9 can be fully cleaned. It is especially useful for top wall of the condensing air-outlet channel 9 where usually adhered with most fluff and is difficult to be cleaned.
  • the spraying device 10 is preferably mounted on a topmost portion of the condensing air-inlet channel 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
EP09171401.4A 2008-09-26 2009-09-25 Sêchoir avec un dispositif de diffusion Active EP2169107B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2008101567911A CN101684610B (zh) 2008-09-26 2008-09-26 衣物烘干设备

Publications (2)

Publication Number Publication Date
EP2169107A1 true EP2169107A1 (fr) 2010-03-31
EP2169107B1 EP2169107B1 (fr) 2014-03-05

Family

ID=41255919

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09171401.4A Active EP2169107B1 (fr) 2008-09-26 2009-09-25 Sêchoir avec un dispositif de diffusion

Country Status (2)

Country Link
EP (1) EP2169107B1 (fr)
CN (1) CN101684610B (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013000784A1 (fr) 2011-06-27 2013-01-03 Arcelik Anonim Sirketi Machine à laver et à sécher le linge dotée d'un condensateur refroidi à l'air
WO2013000787A1 (fr) 2011-06-27 2013-01-03 Arcelik Anonim Sirketi Machine à laver et à sécher le linge dotée d'un condensateur refroidi à l'air
WO2013050263A1 (fr) 2011-10-07 2013-04-11 Arcelik Anonim Sirketi Machine à laver et à sécher le linge comprenant un condenseur
US20130340797A1 (en) * 2012-06-26 2013-12-26 BSH Bosch und Siemens Hausgeräte GmbH Clothes treatment appliance with transfer pipe
WO2014044530A1 (fr) * 2012-09-24 2014-03-27 Arcelik Anonim Sirketi Machine à laver et à sécher le linge comprenant un condenseur
US20140190032A1 (en) * 2010-07-08 2014-07-10 Yongju LEE Clothes dryer
WO2014187493A1 (fr) * 2013-05-23 2014-11-27 Arcelik Anonim Sirketi Dispositif de jet d'eau destiné à éliminer l'accumulation de peluches dans le condenseur refroidi à l'air d'une machine de traitement du linge
EP2796615A4 (fr) * 2011-12-20 2015-05-13 Panasonic Corp Sèche-linge et procédé de nettoyage d'un évaporateur dans un sèche-linge
EP2778281A4 (fr) * 2011-11-08 2015-07-08 Haier Group Corp Échangeur de chaleur pour condensation dans le séchage de vêtements et système de séchage de vêtements et dispositif de séchage de vêtements et leur procédé de séchage
WO2016107699A1 (fr) 2014-12-31 2016-07-07 Arcelik Anonim Sirketi Machine à laver et à sécher le linge comprenant un condenseur refroidi par air
JP2019502449A (ja) * 2015-12-15 2019-01-31 青島海爾滾筒洗衣机有限公司 高効率洗濯乾燥機および制御方法

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EP2570548A1 (fr) * 2011-09-19 2013-03-20 Electrolux Home Products Corporation N.V. Laveuse-sécheuse avec au moins un condensateur
CN102517857B (zh) * 2011-11-08 2016-08-31 青岛海尔滚筒洗衣机有限公司 一种具有余热回收功能的干衣冷凝用热交换系统及干衣机
CN102505437B (zh) * 2011-11-08 2016-11-23 青岛海尔滚筒洗衣机有限公司 一种干衣冷凝用热交换器及干衣机
CN102517860B (zh) * 2011-12-19 2016-08-31 青岛海尔滚筒洗衣机有限公司 干衣系统及干衣系统的线屑清理方式
CN102505439B (zh) * 2011-11-08 2016-08-31 青岛海尔洗衣机有限公司 一种干衣方法及干衣机
CN102535127B (zh) * 2011-12-21 2016-11-23 青岛海尔滚筒洗衣机有限公司 冷凝干衣系统及其工作方法
AU2013307628B2 (en) * 2012-08-31 2017-08-03 Arcelik Anonim Sirketi A laundry washing and drying machine comprising an air-cooled condenser
CN105625007B (zh) * 2014-12-01 2019-08-27 青岛海尔洗衣机有限公司 一种干衣机蒸发器线屑清理装置及清理方法
CN105780424A (zh) * 2014-12-17 2016-07-20 无锡小天鹅股份有限公司 干衣机及其换热装置
CN106702659A (zh) * 2015-07-31 2017-05-24 青岛海尔智能技术研发有限公司 洗干衣机及其干衣方法
CN106521908A (zh) * 2015-09-09 2017-03-22 无锡小天鹅股份有限公司 干衣机
EP3521503B1 (fr) * 2016-09-30 2024-02-28 Wuxi Little Swan Electric Co., Ltd. Appareil de type arroseur et ensemble condenseur
CN106283572B (zh) * 2016-09-30 2019-03-22 无锡小天鹅股份有限公司 用于洗干一体机的冷凝器组件和具有其的洗干一体机
CN106592176B (zh) * 2016-11-30 2019-05-21 无锡小天鹅股份有限公司 直排式干衣机和用于直排式干衣机的冷凝装置
CN110644210B (zh) * 2018-06-26 2023-08-18 青岛海尔洗涤电器有限公司 一种喷淋器、自清洗冷凝器及衣物处理装置

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EP0636732A1 (fr) 1993-07-27 1995-02-01 Bosch-Siemens HausgerÀ¤te GmbH Machine à laver equipée pour sécher
DE3738031C2 (de) 1987-11-09 1995-10-12 Bosch Siemens Hausgeraete Verfahren und Vorrichtung zum Entfernen von Flusen aus einem als Wärmetauscher ausgebildeten Kondenswasser-Abscheider
EP1524361A1 (fr) 2003-10-18 2005-04-20 Lg Electronics Inc. Dispositif de condensation pour machine à laver et à sécher
EP1612318A2 (fr) * 2004-07-02 2006-01-04 Samsung Electronics Co., Ltd. Condenseur
DE102006018469A1 (de) 2006-04-19 2007-10-25 Lare Luft- und Kältetechnik Apparate und Regelsysteme GmbH Temperatur- und Druckausgleich von Wärmetauschern in Wäschetrocknern und ähnlichen Wärmepumpensystemen

Family Cites Families (3)

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CN1521356A (zh) * 2003-02-13 2004-08-18 乐金电子(天津)电器有限公司 具有烘干功能的滚筒洗衣机的冷凝装置
JP2005052544A (ja) * 2003-08-07 2005-03-03 Sanyo Electric Co Ltd 洗濯乾燥機
CN1888269A (zh) * 2005-06-30 2007-01-03 乐金电子(天津)电器有限公司 衣类烘干机冷凝水排出系统

Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
DE3738031C2 (de) 1987-11-09 1995-10-12 Bosch Siemens Hausgeraete Verfahren und Vorrichtung zum Entfernen von Flusen aus einem als Wärmetauscher ausgebildeten Kondenswasser-Abscheider
EP0636732A1 (fr) 1993-07-27 1995-02-01 Bosch-Siemens HausgerÀ¤te GmbH Machine à laver equipée pour sécher
EP1524361A1 (fr) 2003-10-18 2005-04-20 Lg Electronics Inc. Dispositif de condensation pour machine à laver et à sécher
EP1612318A2 (fr) * 2004-07-02 2006-01-04 Samsung Electronics Co., Ltd. Condenseur
DE102006018469A1 (de) 2006-04-19 2007-10-25 Lare Luft- und Kältetechnik Apparate und Regelsysteme GmbH Temperatur- und Druckausgleich von Wärmetauschern in Wäschetrocknern und ähnlichen Wärmepumpensystemen

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9752274B2 (en) * 2010-07-08 2017-09-05 Lg Electronics Inc. Clothes dryer
US20140190032A1 (en) * 2010-07-08 2014-07-10 Yongju LEE Clothes dryer
WO2013000787A1 (fr) 2011-06-27 2013-01-03 Arcelik Anonim Sirketi Machine à laver et à sécher le linge dotée d'un condensateur refroidi à l'air
CN103620106A (zh) * 2011-06-27 2014-03-05 阿塞里克股份有限公司 具有空气冷却冷凝器的衣物清洗干燥机
WO2013000784A1 (fr) 2011-06-27 2013-01-03 Arcelik Anonim Sirketi Machine à laver et à sécher le linge dotée d'un condensateur refroidi à l'air
WO2013050263A1 (fr) 2011-10-07 2013-04-11 Arcelik Anonim Sirketi Machine à laver et à sécher le linge comprenant un condenseur
US9869052B2 (en) 2011-11-08 2018-01-16 Haier Group Corporation Heat exchanger for condensation in clothes drying and clothes drying system and clothes dryer and drying method thereof
EP2778281A4 (fr) * 2011-11-08 2015-07-08 Haier Group Corp Échangeur de chaleur pour condensation dans le séchage de vêtements et système de séchage de vêtements et dispositif de séchage de vêtements et leur procédé de séchage
EP2796615A4 (fr) * 2011-12-20 2015-05-13 Panasonic Corp Sèche-linge et procédé de nettoyage d'un évaporateur dans un sèche-linge
US20130340797A1 (en) * 2012-06-26 2013-12-26 BSH Bosch und Siemens Hausgeräte GmbH Clothes treatment appliance with transfer pipe
WO2014001950A1 (fr) * 2012-06-26 2014-01-03 BSH Bosch und Siemens Hausgeräte GmbH Appareil de traitement de vêtements pourvu d'un tuyau de transfert menant à une unité pouvant être nettoyée à l'eau dudit appareil
WO2014044530A1 (fr) * 2012-09-24 2014-03-27 Arcelik Anonim Sirketi Machine à laver et à sécher le linge comprenant un condenseur
CN104968853A (zh) * 2012-09-24 2015-10-07 阿塞里克股份有限公司 包括冷凝器的衣物洗涤干燥机
CN104968853B (zh) * 2012-09-24 2017-05-03 阿塞里克股份有限公司 包括冷凝器的衣物洗涤干燥机
WO2014187493A1 (fr) * 2013-05-23 2014-11-27 Arcelik Anonim Sirketi Dispositif de jet d'eau destiné à éliminer l'accumulation de peluches dans le condenseur refroidi à l'air d'une machine de traitement du linge
WO2016107699A1 (fr) 2014-12-31 2016-07-07 Arcelik Anonim Sirketi Machine à laver et à sécher le linge comprenant un condenseur refroidi par air
JP2019502449A (ja) * 2015-12-15 2019-01-31 青島海爾滾筒洗衣机有限公司 高効率洗濯乾燥機および制御方法

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Publication number Publication date
EP2169107B1 (fr) 2014-03-05
CN101684610A (zh) 2010-03-31
CN101684610B (zh) 2011-11-09

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