EP2397595A1 - Wäschepflegevorrichtung mit einem Luftdurchgang - Google Patents

Wäschepflegevorrichtung mit einem Luftdurchgang Download PDF

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Publication number
EP2397595A1
EP2397595A1 EP11164888A EP11164888A EP2397595A1 EP 2397595 A1 EP2397595 A1 EP 2397595A1 EP 11164888 A EP11164888 A EP 11164888A EP 11164888 A EP11164888 A EP 11164888A EP 2397595 A1 EP2397595 A1 EP 2397595A1
Authority
EP
European Patent Office
Prior art keywords
air
condensation
laundry care
care device
air passageway
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.)
Withdrawn
Application number
EP11164888A
Other languages
English (en)
French (fr)
Inventor
Yanjie Liu
Jiantao Wu
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.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP2397595A1 publication Critical patent/EP2397595A1/de
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • 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 laundry care device, and more particularly to a laundry care device with a drying program.
  • a drying operation procedure of a conventional laundry care device with a drying program is as follows: Firstly, air is heated through a heating device, thereby heating the air into high-temperature and low-humidity hot air; secondly, the high-temperature and low-humidity hot air is transmitted into a rotating drum where a user places clothes under the action of a circulation device, and exchanges heat with the clothes in the drum, thereby taking away moisture contained in the clothes and forming low-temperature and high-humidity hot air; thirdly, after being exhausted, the low-temperature and high-humidity air enters a condensation device, and then under the action of the condensation device, moisture contained in the low-temperature and high-humidity hot air is fully condensed into water, so that the low-temperature and high-humidity hot air becomes low-temperature low-humidity hot air; finally, the low-temperature low-humidity hot air is reheated into the high-temperature and low
  • the circulation is continuous; the moisture contained in the clothes is continuously absorbed by the high-temperature and low-humidity hot air, the clothes being gradually dried thereby.
  • the air used for drying clothes is circulated and ventilated in a drying air circulation loop relatively independent of a condensation device, and an air passageway separate from the drying air circulation loop also exists in a condensation device with water or air or a mixture of the both as a condensation medium, particularly as far as a condensation device with air or a mixture of air and water as a condensation medium is concerned.
  • the present invention is directed to an improved laundry care device with a drying program, which reduces an airflow noise generated by the device due to air ventilation as much as possible when the drying program is executed, thereby controlling an integral noise of the device within an allowable range.
  • a laundry care device with a drying program for executing a drying procedure through heat exchange between heated air and clothes includes an air passageway for guiding the air, and a resonance sound reduction means disposed in the air passageway.
  • the air passageway is a drying air passageway for ventilating drying air for heat exchange with the clothes. More preferred, this air passageway is a closed passageway. This preferred embodiment notwithstanding, a laundry care device with an open drying air passageway is also deemed to be included in the scope of the invention.
  • the air passageway comprises a condensation device for ventilating condensation air through the condensation device, to implement a condensation procedure by heat exchange between the drying air and the condensation air.
  • the resonance sound reduction means is disposed adjacent to the condensation device.
  • the resonance sound reduction means is disposed at an air outlet end of the condensation device in the air passageway.
  • the air passage is a condensation air passage provided for ventilating the condensation air through said condensation device.
  • the condensation air passage s open.
  • the resonance sound reduction means includes a sealing cavity and the sealing cavity is connected with the air passageway through a neck tube.
  • This embodiment provides the resonance sound reduction means in the form of a Helmholtz resonator.
  • a cross section of the neck tube is smaller than that of the sealing cavity.
  • a sound absorbing material is filled in the sealing cavity.
  • plural resonance sound reduction means are disposed in the air passageway.
  • the plural resonance sound reduction means are connected in series to each other along the air passageway.
  • the plural resonance sound reduction means have different resonance frequencies.
  • Beneficial effects of the present invention include the following: Since the resonance sound reduction means is disposed in the air passageway, when being ventilated in the air passageway, the air resonates with air in a sealing cavity, sound energy formed during the air ventilation is consumed by utilizing air resonance, thereby reducing a dynamic airflow noise generated during the air ventilation.
  • a laundry care device 1 with a drying program may be a clothes dryer 1 only having a drying function, or may also be a clothes washer and dryer 1 having washing and drying functions.
  • the clothes washer and dryer 1 includes a drum 2 where a user places clothes to be washed or dried and a tub 3 accommodating the drum 2 and washing water, and further includes a heating device 4 for heating air, a condensation device 5 for condensing air completing heat exchange with the clothes and an air circulation device 6 for facilitating air circulation disposed outside the tub 3.
  • a drying air passageway 7 is provided to guide drying air 14 in a loop substantially closed in itself. The heating device 4 and the air circulation device 6 are disposed in the drying air passageway 7.
  • the drying air passageway 7 includes the tub 3 for guiding air therethrough.
  • the drum 2, the tub 3, the heating device 4 and the air circulation device 6 form the drying air passageway 7 for drying air circulation and ventilation.
  • the laundry care device 1 with the drying program adopts air as a condensation medium, and definitely may also adopt water and air as the condensation medium, or adopt other flowing gas as the condensation medium.
  • the condensation device 5 is a heat exchanger for exchanging heat with condensation air ventilated to the condensation device 5 through a condensation air passageway 15.
  • the condensation air passageway 15 is relatively independent of the drying air passageway 7 but placed in heat exchanging relation with the latter through the condensation device 5.
  • condensation air passageway 15 is an open passageway, that is, both an air inlet 11 and an air outlet 13 of the condensation air passageway 15 are directly in communication with outside air in the ambient of the laundry care device 1.
  • outside cool air is inhaled from the air inlet 11 of the condensation air passageway 15, enters the condensation device 5 to exchange heat with humid air in the drying air passageway 7, and then is exhausted from the air outlet 13 of the condensation air passageway 15.
  • the air in the drying air passageway 7 maybe also the air in the condensation air passageway 15, inevitably generates a dynamic airflow noise during ventilation, and in order to reduce such noise, a resonance sound reduction means 8 is further disposed in the drying air passageway 7 and/or condensation air passageway 15.
  • the drying air passageway 7 is an essentially closed isolated loop relative to the outside air, the airflow noise formed in the drying air passageway is basically constrained in a device case, while the condensation air passageway 15 is directly in communication with the outside air, so preferably, the resonance sound reduction means 8 is disposed in the condensation air passageway 15. More preferably, the resonance sound reduction means 8 is disposed on an air outlet 13 of the condensation air passageway 15.
  • the resonance sound reduction means 8 includes a sealing cavity 9 in communication with the drying air passageway 7, and the sealing cavity 9 is in communication with the air passageway 7 through a neck tube 10, in which a cross section of the neck tube 10 is smaller than that of the sealing cavity 9.
  • Flow directions of condensation air 12 and of drying air 14 are shown by arrows. In this way, when the resonance sound reduction means 8 is not disposed, the air is freely ventilated in the air passageway 7 to form a certain dynamic airflow noise.
  • an air column in the neck tube 10 is similar to a piston and has a certain acoustic mass, while the air in the sealing cavity 9 forms an air spring and has a certain acoustic compliance, and the both form a resonance system. Therefore, when the airflow passes through the neck tube 10, the air column in the neck tube 10 generates vibration, friction damping during the vibration makes sound energy be converted into thermal energy to be dissipated, thereby enabling the total amount of the sound energy to be reduced, so as to comply with the purpose of reducing the noise. In order to provide the friction damping during the vibration, some sound absorbing materials 9a may be further filled in the sealing cavity 9.
  • a plurality of resonance sound reduction means 8a, 8b, 8c which may have different resonance frequencies may be further connected in series and disposed in the drying air passageway 7 or condensation air passageway 15.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
EP11164888A 2010-05-14 2011-05-05 Wäschepflegevorrichtung mit einem Luftdurchgang Withdrawn EP2397595A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010101768072A CN102242480A (zh) 2010-05-14 2010-05-14 设有烘干程序的衣物处理设备

Publications (1)

Publication Number Publication Date
EP2397595A1 true EP2397595A1 (de) 2011-12-21

Family

ID=44883593

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11164888A Withdrawn EP2397595A1 (de) 2010-05-14 2011-05-05 Wäschepflegevorrichtung mit einem Luftdurchgang

Country Status (2)

Country Link
EP (1) EP2397595A1 (de)
CN (1) CN102242480A (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105937173A (zh) * 2016-06-29 2016-09-14 无锡小天鹅股份有限公司 排风组件及具有其的干衣机或洗干一体机
CN105970577A (zh) * 2016-06-30 2016-09-28 无锡小天鹅股份有限公司 直排式干衣机及其组装方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2927380A (en) * 1958-06-11 1960-03-08 Gen Electric Noise reducing arrangement for use in clothes dryers
GB2219849A (en) * 1988-06-17 1989-12-20 Zanussi A Spa Industrie Noise reduced tumble dryer
DE202005017277U1 (de) * 2005-11-04 2007-03-15 BSH Bosch und Siemens Hausgeräte GmbH Einrichtung umfassend eine funktionelle Komponente, insbesondere in einem Hausgerät
EP1865103A1 (de) * 2006-06-06 2007-12-12 Electrolux Home Products Corporation N.V. Wäschetrockner mit Schallabsorptionssystem

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007023081A1 (de) * 2005-08-23 2007-03-01 BSH Bosch und Siemens Hausgeräte GmbH Einrichtung umfassend eine funktionelle komponente, insbesondere in einem hausgerät
JP4215790B2 (ja) * 2006-08-29 2009-01-28 Ｎｅｃディスプレイソリューションズ株式会社 消音装置、電子機器および消音特性の制御方法
JP5135966B2 (ja) * 2006-11-02 2013-02-06 パナソニック株式会社 遠心送風機

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2927380A (en) * 1958-06-11 1960-03-08 Gen Electric Noise reducing arrangement for use in clothes dryers
GB2219849A (en) * 1988-06-17 1989-12-20 Zanussi A Spa Industrie Noise reduced tumble dryer
DE202005017277U1 (de) * 2005-11-04 2007-03-15 BSH Bosch und Siemens Hausgeräte GmbH Einrichtung umfassend eine funktionelle Komponente, insbesondere in einem Hausgerät
EP1865103A1 (de) * 2006-06-06 2007-12-12 Electrolux Home Products Corporation N.V. Wäschetrockner mit Schallabsorptionssystem

Also Published As

Publication number Publication date
CN102242480A (zh) 2011-11-16

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