EP3088598B1 - Clothes dryer - Google Patents

Clothes dryer Download PDF

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Publication number
EP3088598B1
EP3088598B1 EP16163124.7A EP16163124A EP3088598B1 EP 3088598 B1 EP3088598 B1 EP 3088598B1 EP 16163124 A EP16163124 A EP 16163124A EP 3088598 B1 EP3088598 B1 EP 3088598B1
Authority
EP
European Patent Office
Prior art keywords
airflow passage
passage
annular
annular airflow
condenser
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.)
Active
Application number
EP16163124.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3088598A1 (en
Inventor
Maoyin Li
Yongjia Wang
Yonggang Xu
Qi Zhang
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 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 Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP3088598A1 publication Critical patent/EP3088598A1/en
Application granted granted Critical
Publication of EP3088598B1 publication Critical patent/EP3088598B1/en
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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
    • 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 clothes dryer, comprising a barrel for containing clothes, a condenser that is spatially in communication with the barrel, and a fan that enables air to flow from the barrel to the condenser, and wherein the condenser has an annular airflow passage.
  • Such a clothes dryer is disclosed in each of the documents EP 1 688 524 A1 and WO 2012/053751 A1 respectively.
  • the condenser is formed within the barrel, and the annular airflow passage is the space between the barrel and the drum disposed rotatably therein.
  • Document EP 1 612 318 A2 discloses a moisture condensing apparatus for use in a washing/ drying machine, comprising a cyclone through which moist air flows through to cause moisture in the centrifugally circulating air to condense.
  • Clothes dryers generally include machines having only a clothes drying function, and machines integrating a clothes washing function and a clothes drying function.
  • a drying principle of the clothes dryer may be basically summarized as follows: With a heating apparatus, dry air is heated into dry hot air, then enters a clothes processing barrel to exchange heat with wet clothes, takes moisture away from the clothes, and becomes relatively wet hot air. The wet hot air subsequently passes through a condensing apparatus. By condensation of the condensing apparatus, moisture in the wet hot air is condensed into water and is discharged through a drainage tube. After the condensation, the air becomes relatively dry cold air, is guided into the heating apparatus again by a fan, becomes dry hot air after heating, and enters another circle. The circle repeats until a drying program ends.
  • the condensing apparatus may use various condensation methods.
  • a common method is to use water as a cooling medium to exchange heat with drying air, thereby making moisture in hot air condensed and be separated from air.
  • Such a condensing apparatus generally has a body in a passage shape, and a cooling water pipe is connected to the body. Wet hot drying air passes the inside body of the condensing apparatus from the bottom up. During this period, cooling water flows out from the top down to exchange heat with wet hot air.
  • the heat exchange distance between the wet hot air and the cooling water is very short.
  • the wet hot air ascending at a high speed blows away the water flow after meeting the cooling water, or even blows water droplets into the fan and an air heating apparatus.
  • An objective of the present invention is to provide a clothes dryer with an improved condenser, where the condenser has better heat exchange performance and cooling water is not easily blown into a fan or an air heating apparatus.
  • a clothes dryer including a barrel for containing clothes, a condenser that is spatially in communication with the barrel, and a fan that enables air to flow from the barrel to the condenser, where the condenser has an annular airflow passage.
  • the condenser comprises an air intake passage which is in communication with the annular airflow passage and is located at an upstream of the annular airflow passage, and a flow cross-section of the air intake passage gradually decreases along an air flowing direction.
  • the condenser comprises a cooling water inlet, and the cooling water inlet is close to a narrowest position of the flow cross-section of the air intake passage.
  • the clothes dryer may be various machines having a clothes drying function, for example, a machine used only to dry clothes, or a washer-dryer.
  • the condenser includes an air intake passage which is in communication with the annular airflow passage and is located at an upstream of the annular airflow passage, and a flow cross-section of the air intake passage gradually decreases along an air flowing direction.
  • an air intake passage can increase a speed at which the airflow enters the annular airflow passage, and enhance heat exchange performance.
  • the condenser includes a cooling water inlet, and the cooling water inlet is close to a narrowest position of the flow cross-section of the air intake passage.
  • the cooling water inlet is located near an area with a highest airflow speed, which helps to blow the cooling water into water droplets and better mix the cooling water with the airflow.
  • a relatively high airflow speed results in relatively great centrifugal force within the annular airflow passage, so that condensed water is separated from air to attach to a passage wall, and is prevented from entering the fan.
  • the condenser includes an air intake passage which is in communication with the annular airflow passage and is located at an upstream of the annular airflow passage; and the condenser includes a cooling water inlet which is located within the air intake passage. Therefore, cooling water is blown away within the air intake passage by an airflow and is mixed with the airflow, so that the heat exchange distance within the annular airflow passage can be used more sufficiently.
  • the air intake passage extends substantially horizontally.
  • a straight airflow passage is provided in the middle of the annular airflow passage, where a wall of the straight airflow passage forms an inner wall of the annular airflow passage; an inlet of the straight airflow passage is located at the bottom of the straight airflow passage, and is in communication with the annular airflow passage; and an outlet of the straight airflow passage is located at the top of the straight airflow passage, and is in communication with the fan.
  • the wall of the straight airflow passage is cylindrical, so that the airflow swirls in the annular airflow passage more smoothly.
  • an inlet of the annular airflow passage is close to the top of the annular airflow passage. After entering the annular airflow passage from a relatively high position, the airflow finally enters the straight airflow passage from the bottom. The airflow swirls down; therefore, heat exchange increases, and condensation performance is improved.
  • the inlet of the annular airflow passage is provided in a tangent direction of the annular airflow passage.
  • High speed airflow from the tangent direction helps to form a swirling airflow within the annular airflow passage, and reduce resistance.
  • a condensed water outlet is provided at the bottom of the annular airflow passage. Such design prevents water accumulation.
  • the annular airflow passage includes a cylindrical outer wall and a cylindrical inner wall.
  • An annular passage located between the cylindrical outer wall and the cylindrical inner wall has small resistance to airflow passing through the annular passage.
  • a clothes dryer has a drum 1 and a barrel 2 that are coaxial and are spatially communicated.
  • the drum 1 is rotatably installed in the barrel 2.
  • Clothes to be dried are contained in the drum 1, and are gradually dried under the action of hot air that enters the barrel 2.
  • the drum 1 and the barrel 2 are substantially horizontally installed along their axial direction.
  • a condenser 3 is disposed on a periphery wall 21 that is on the top of the barrel 2.
  • a fan 4 and an air heating passage 5 are sequentially connected to a downstream of the condenser 3.
  • An outlet air of the air heating passage 5 is in communication with a front opening 22 of the barrel 2. Therefore, an air circulation path is formed in the barrel 2, the condenser 3, the fan 4, and the air heating passage 5.
  • the condenser 3 includes a housing 31.
  • the housing 31 together with the periphery wall 21 of the barrel forms a condensing passage 32.
  • An inlet 33 of the condensing passage 32 is located on the periphery wall 21 of the barrel.
  • the condensing passage 32 includes an air intake passage 34 located near the inlet 33, and an annular airflow passage 35 located at a downstream of the air intake passage 34.
  • the air intake passage 34 extends substantially horizontally, and a flow cross-section of the air intake passage gradually decreases along an air flowing direction.
  • a cooling water inlet 36 is located within the air intake passage 34, and is close to a narrowest position of the flow cross-section of the air intake passage 34.
  • An annular passage 35 includes a cylindrical outer wall 351 and a cylindrical inner wall 352, where the outer wall 351 is a part of the housing 31 of the condenser, and a straight airflow passage 37 is formed within the inner wall 352.
  • An inlet 371 of the straight airflow passage 37 is located at the bottom of the straight airflow passage, and is in communication with the annular airflow passage 35; and an outlet 372 of the straight airflow passage is located at the top of the straight airflow passage 37, and is in communication with the fan 4.
  • An inlet 353 of the annular airflow passage 35 is close to the top of the annular airflow passage, and is provided towards a tangent direction of the annular airflow passage 35.
  • the inlet 353 of the annular airflow passage 353 is connected to the air intake passage 34.
  • a condensed water outlet 38 is provided at the bottom of the annular airflow passage 35 and on the periphery wall 21 of the barrel. Therefore, condensed water is discharged from the condensed water outlet 38 into the barrel 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
EP16163124.7A 2015-04-29 2016-03-31 Clothes dryer Active EP3088598B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510213147.3A CN106192333B (zh) 2015-04-29 2015-04-29 干衣机

Publications (2)

Publication Number Publication Date
EP3088598A1 EP3088598A1 (en) 2016-11-02
EP3088598B1 true EP3088598B1 (en) 2018-01-17

Family

ID=55642350

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16163124.7A Active EP3088598B1 (en) 2015-04-29 2016-03-31 Clothes dryer

Country Status (2)

Country Link
EP (1) EP3088598B1 (zh)
CN (2) CN110344225A (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109281119B (zh) * 2018-08-31 2023-11-24 无锡小天鹅电器有限公司 壁挂式衣物处理装置
CN111254672B (zh) * 2018-11-30 2023-09-15 博西华电器（江苏）有限公司 热交换装置及具有热交换装置的衣物烘干器具
CN111254667B (zh) * 2018-11-30 2023-10-27 博西华电器（江苏）有限公司 衣物烘干器具
CN114753128B (zh) * 2022-04-29 2023-04-07 珠海格力电器股份有限公司 烘干系统以及具有的衣物处理装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1612318A2 (en) * 2004-07-02 2006-01-04 Samsung Electronics Co., Ltd. Moisture condensing unit

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2414375Y (zh) * 1999-12-21 2001-01-10 张元跃 双腔定向散热器
JP3902041B2 (ja) * 2002-03-26 2007-04-04 三菱電機株式会社 空気循環路を有する家電機器または衣類乾燥機または洗濯乾燥機
KR101041070B1 (ko) * 2003-06-13 2011-06-13 삼성전자주식회사 드럼세탁기
US7421865B2 (en) * 2003-12-18 2008-09-09 Lg Electronics Inc. Washing machine with drying function and method of controlling the same
KR100712849B1 (ko) * 2005-02-03 2007-05-02 엘지전자 주식회사 세탁물 처리 기기의 응축 구조
KR20070075486A (ko) * 2006-01-13 2007-07-24 엘지전자 주식회사 세탁물 처리 기기의 수냉식 응축기
KR20120088034A (ko) * 2010-10-19 2012-08-08 엘지전자 주식회사 건조겸용 세탁장치 및 건조완료 판단방법
CN202116896U (zh) * 2011-03-31 2012-01-18 无锡小天鹅股份有限公司 洗烘一体机的烘干冷凝装置
WO2014094855A1 (en) * 2012-12-20 2014-06-26 Electrolux Home Products Corporation N. V. Household appliance and method of operating a household appliance
CN104711833B (zh) * 2013-12-13 2018-04-06 博西华电器（江苏）有限公司 干衣机

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1612318A2 (en) * 2004-07-02 2006-01-04 Samsung Electronics Co., Ltd. Moisture condensing unit

Also Published As

Publication number Publication date
EP3088598A1 (en) 2016-11-02
CN106192333A (zh) 2016-12-07
CN110344225A (zh) 2019-10-18
CN106192333B (zh) 2019-11-19

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