EP3315648A1 - Waschmaschine/trockner - Google Patents

Waschmaschine/trockner Download PDF

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Publication number
EP3315648A1
EP3315648A1 EP17198193.9A EP17198193A EP3315648A1 EP 3315648 A1 EP3315648 A1 EP 3315648A1 EP 17198193 A EP17198193 A EP 17198193A EP 3315648 A1 EP3315648 A1 EP 3315648A1
Authority
EP
European Patent Office
Prior art keywords
channel
liquid
washing
processing chamber
water
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
EP17198193.9A
Other languages
English (en)
French (fr)
Other versions
EP3315648B1 (de
Inventor
Chuo Gao
Hui Kuang
Maoyin Li
Qixia You
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
Priority to PL17198193T priority Critical patent/PL3315648T3/pl
Publication of EP3315648A1 publication Critical patent/EP3315648A1/de
Application granted granted Critical
Publication of EP3315648B1 publication Critical patent/EP3315648B1/de
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 
    • D06F58/26—Heating arrangements, e.g. gas heating equipment
    • 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
    • D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/28—Air properties
    • D06F2103/36—Flow or velocity
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/16—Air properties
    • D06F2105/24—Flow or velocity
    • 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 
    • 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
    • D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
    • D06F35/005—Methods for washing, rinsing or spin-drying
    • D06F35/008—Methods for washing, rinsing or spin-drying for disinfecting the tub or the drum
    • 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 
    • D06F58/203—Laundry conditioning 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
    • D06F58/00—Domestic laundry dryers
    • D06F58/30—Drying processes 

Definitions

  • the present invention relates to a washing and drying machine, and in particular, to an air heating apparatus of a washing and drying machine.
  • a washing and drying machine usually includes a processing chamber, and an air heating channel in fluid communication with the processing chamber.
  • a heating apparatus is disposed in the air heating channel for heating air supplied to the processing chamber in a drying program.
  • the washing and drying machine has both the functions of washing and drying, the following problems exist: a large quantity of laundry fluffs generated in the drying process easily accumulate in a condensation channel, and residual dirt, in particular, oily dirt such as sebum in the washing process is also attached on the fluffs, and is difficult to rinse; long-term laundry detergent residues in a detergent dispenser cause mildewing; washing water, foams, and the like remain on the bottom of a door gasket after washing, and consequently cause mildewing and bacteria breeding; and a large amount of dirt, and the like accumulate on an inner wall of the processing chamber after long-term washing. In addition, additional steam or hot water usually needs to be provided in the washing and drying process.
  • An objective of the present invention is to resolve the foregoing problems in the related art.
  • the present invention provides a washing and drying machine as defined in the independent claim attached.
  • Preferred facultative embodiments of the invention are defined in respective dependent claims, where different embodiments as defined may also be combined among themselves for yielding further preferred embodiments, described in the subsequent description, or exhibited in the drawing attached.
  • the present invention accordingly provides a washing and drying machine, including a processing chamber and an air heating channel in fluid communication with the processing chamber.
  • a heating apparatus is disposed in the air heating channel;
  • a liquid flow-through apparatus is disposed close to or surrounding the heating apparatus;
  • an input channel and an output channel are connected to the liquid flow-through apparatus; and
  • the output channel is connected to at least one of a detergent dispenser, a door gasket, the processing chamber, or a condensation channel.
  • a fluid is heated by the heating apparatus after entering the liquid flow-through apparatus from the input channel, and then flows out of the output channel, so that a heated liquid is obtained.
  • high-temperature steam after the liquid is evaporated may be obtained.
  • the heated liquid or high-temperature steam is conveyed to at least one of the detergent dispenser, the door gasket, the processing chamber, or the condensation channel through the output channel, so as to perform cleaning, sterilization, and mildew prevention on the parts.
  • the heated liquid or high-temperature steam can perform functions such as sterilization, wrinkle elimination, washing effect enhancement on laundry. In addition, transformation on the existing drying machine is small.
  • the input channel is connected to a circulation pump, so as to be connected to the processing chamber through the circulation pump.
  • a washing liquid is pumped into the liquid flow-through apparatus by using the circulation pump, and enters at least one of the detergent dispenser, the door gasket, the processing chamber, or the condensation channel in a liquid or steam form after being heated in the liquid flow-through apparatus.
  • the final liquid or steam returns back to the processing chamber.
  • a nozzle that converts a liquid into water mist is disposed on a tail end of the output channel.
  • High-temperature water can generate high-temperature water mist after passing through the nozzle.
  • a control apparatus is included, where the control apparatus controls the heating apparatus, so as to adjust the temperature of a liquid or a water-vapor mixture output from the output channel.
  • a fan that promotes air to flow to the processing chamber from the air heating channel is included, where the fan is controlled by the control apparatus so as to be able to change the rotation speed, and hence adjust the temperature of a liquid or a water-vapor mixture output from the output channel.
  • the rotation speed of the fan is high, the air flow that passes through the air heating channel is large, and the amount of heat that is generated by the heating apparatus and distributed to air is relatively large, and the amount of heat distributed to the liquid flow-through apparatus is relatively small. Then, the temperature of the liquid or water-vapor mixture output by the output channel is relatively low, and otherwise, the temperature of the liquid or water-vapor mixture output by the output channel is relatively high.
  • the input channel is connected to a water valve or a circulation pump, and the control apparatus can control an on/off rhythm of the water valve or the circulation pump, so as to adjust the temperature of a liquid or a water-vapor mixture output from the output channel.
  • the amount of the liquid that enters the liquid flow-through apparatus is adjusted by controlling an on/off rhythm of the control valve or circulation pump.
  • the amount of the liquid that enters the liquid flow-through apparatus within unit time is relatively small, the temperature of the liquid or water-vapor mixture output by the output channel is relatively high, and otherwise, the temperature of the liquid or water-vapor mixture output by the output channel is relatively low.
  • a washing and drying machine includes a processing chamber 2 for accommodating laundry, and an air heating channel 3 in fluid communication with the processing chamber.
  • a fan 4 is disposed upstream of the air heating channel 3, to promote air to enter the processing chamber 2 from the air heating channel 3.
  • a heating apparatus 5 is disposed in the air heating channel 3, to heat air that flows through the air heating channel 3.
  • a liquid flow-through apparatus 6 is disposed close to the heating apparatus 5.
  • the liquid flow-through apparatus 6 is connected to an input channel 7 and an output channel 8.
  • a liquid, mainly water or washing water formed by mixing water and detergent enters the liquid flow-through apparatus 6 from the input channel 7, and then is heated because the liquid is close to the heating apparatus 5. Then the liquid is output from the output channel 8 into the processing chamber 2.
  • the liquid flow-through apparatus 6 is constructed into a shape suitable for flowing of the liquid therein.
  • the liquid flow-through apparatus 6 is a plate-shaped structure 61 with an open top, and the heating apparatus 5 is located in the plate-shaped structure 61.
  • the heating apparatus 5 may alternatively be located above or below the plate-shaped structure 61.
  • the liquid flow-through apparatus 6 is a water tank 62 with a closed top, and the heating apparatus 5 is located in the water tank 62 or located above or below the water tank 62.
  • the difference between the plate-shaped structure 61 and the water tank 62 may lie only in whether the top is open or closed, and it can be seen from top-view projection images that the plate-shaped structure 61 is relatively similar to the water tank 62. Therefore, the liquid flow-through apparatus 6 in the form of the plate-shaped structure 61 and the water tank 62 is represented by using a same mechanism in FIG. 1 .
  • a person skilled in the art can clearly determine content of the foregoing implementation with reference to the specification and the accompanying drawings.
  • a liquid flow-through apparatus 63 is an extending curved-shaped pipe 63 that has a shape similar to that of a heating apparatus 5.
  • the liquid flow-through apparatus 63 is adjacent to the heating apparatus 5 and is closer to a heat source, and therefore can absorb more heat, so that a liquid therein can be quickly heated.
  • an outlet of an output channel 8 is located in an air heating channel 3. Then, a liquid flowing out of the output channel 8 directly falls onto the bottom of the air heating channel 3. A hydrophilic coating 20 is covered on an inner surface of the bottom of the air heating channel 3. Then, the high-temperature liquid expands on the inner surface of the bottom of the air heating channel 3 to form a water film. When being further heated by a heating apparatus 5, the water film can be vaporized to generate steam into a processing chamber 2. When a fan 4 is started, hot air quickly evaporates the liquid on a surface of the water film to form a large amount of steam.
  • a nozzle 21 that converts a liquid into water mist may be disposed on a tail end of the output channel 8.
  • the nozzle 21 may be disposed on the output channel 8 in the foregoing various implementations.
  • an input channel 7 may be enabled to input a relatively small amount of liquid within unit time, and the heating apparatus 5 may be enabled to generate a relatively high temperature, so that the liquid is evaporated under the effect of high temperature to generate steam.
  • a water valve 9 controlled by a control apparatus 10 is disposed on the input channel 7, as shown in FIG. 5 , or a circulation pump 11 is disposed as shown in FIG. 4 .
  • An input end of the circulation pump 11 is connected to the processing chamber 2, so as to pump the liquid in the processing chamber 2 into the liquid flow-through apparatus 6.
  • the processing chamber 2 mentioned above not only can be used as a drying chamber, but also can be used as a washing chamber.
  • a high-temperature liquid or a high-temperature liquid-vapor mixture output in the output channel 8 can be conveyed to a suitable part according to a design requirement.
  • an output channel 8 is connected to a door gasket 12.
  • An outlet 81 of the output channel 8 is close to the bottom of the door gasket 12, and a washing liquid and foam easily accumulate on this part, and consequently a bacterial film is formed.
  • a high-temperature liquid or high-temperature liquid-vapor mixture output by the output channel 8 can rinse the part, to prevent generation of a bacterial film and keep clean. Subsequently, the high-temperature liquid flows into the processing chamber 2 to participate in washing laundry.
  • the output channel 8 may be directly connected to the processing chamber 2, in particular, on a rear part, on which dirt easily accumulates, of the processing chamber 2, so that not only the part can be kept clean, but also the high-temperature liquid can subsequently participate in washing laundry.
  • the output channel 8 may further be connected to a detergent dispenser 13 and/or a condensation channel 14, so as to perform cleaning, sterilization, mildew prevention, and the like.
  • the output channel 8 may be connected to a single component in the foregoing implementations, or may include multiple pipes to be connected to multiple components.
  • a control apparatus 10 is connected to a fan 4, a heating apparatus 5, and a water valve 9 or a circulation pump 11.
  • the temperature of a liquid or a water-vapor mixture output by an output channel 8 can be adjusted by adjusting the power or on/off rhythm of the heating apparatus 5, the rotation speed of the fan 4, and/or the on/off rhythm of the water valve 9 or circulation pump 11 by using the control apparatus 10.
  • a ratio of heat of the heating apparatus 5 transferred to the liquid to air can be adjusted.
  • the air flow can be reduced, so that heat transferred to air is reduced.
  • the temperature of the liquid or water-vapor mixture discharged by the output channel 8 can be increased.
  • the fan 4 is switched off, air in the air heating channel 3 performs natural convection. After air reaches a particular temperature, most heat of the heating apparatus 5 is used to heat the liquid in the liquid flow-through apparatus 6.
  • the control apparatus 10 further controls a washing program.
  • the washing program includes a main washing phase, a rinsing phase, and a spin-drying phase.
  • the heating apparatus 5 and the water valve 9 are first started. Water is heated by the heating apparatus 5 after entering the liquid flow-through apparatus 6 from an input channel 7, and then is output into a processing chamber 2 from the output channel 8. High-temperature water or a liquid-vapor mixture may be output into the processing chamber 2.
  • the control apparatus 10 simultaneously starts the fan 4, so that the air heating channel 3 outputs heated air to the processing chamber 2 when the output channel 8 outputs the heated water or liquid-vapor mixture to the processing chamber 2.
  • High-temperature air, water, liquid-vapor mixture, and the like entering the processing chamber 2 come into contact with laundry to heat and sterilize the laundry. Because the laundry are in a relatively dry state at the moment, the laundry can quickly reach a relatively high temperature, so as to kill bacteria in the laundry. Moreover, damages such as fading and shrinkage of laundry are reduced when heating is performed in a dry state. Laundry that enter the subsequent main washing phase after the sterilization is completed are more hygienic. Moreover, the laundry are already in a high-temperature state at the moment, and the activity of detergent in the subsequent main washing phase is improved. In addition, the high-temperature water or liquid-vapor mixture entering the processing chamber 2 from the output channel 8 is also used in the subsequent main washing phase.
  • the heating apparatus 5 and the water valve 9 may also be in a started state in the main washing phase and/or the rinsing phase.
  • the heating apparatus 5 and the water pump 9 may also be started in an initial part of the main washing phase.
  • the heating apparatus 5 and the circulation pump 11 are started in the main washing phase and/or rinsing phase. Then the washing liquid in the processing chamber 2 is circularly heated, and can clean and sterilize a detergent dispenser 13, a door gasket 12, and a condensation channel 14 before entering the processing chamber 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Drying Of Solid Materials (AREA)
EP17198193.9A 2016-10-31 2017-10-25 Waschmaschine/trockner Active EP3315648B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL17198193T PL3315648T3 (pl) 2016-10-31 2017-10-25 Urządzenie do prania i suszenia

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610929745.5A CN108018669B (zh) 2016-10-31 2016-10-31 洗衣干衣机

Publications (2)

Publication Number Publication Date
EP3315648A1 true EP3315648A1 (de) 2018-05-02
EP3315648B1 EP3315648B1 (de) 2020-06-17

Family

ID=60182437

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17198193.9A Active EP3315648B1 (de) 2016-10-31 2017-10-25 Waschmaschine/trockner

Country Status (3)

Country Link
EP (1) EP3315648B1 (de)
CN (1) CN108018669B (de)
PL (1) PL3315648T3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018213432B3 (de) 2018-08-09 2020-01-23 E.G.O. Elektro-Gerätebau GmbH Wäschetrockner und Verfahren zum Betrieb eines Wäschetrockners

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1992730A1 (de) * 2007-05-16 2008-11-19 Samsung Electronics Co., Ltd. Waschmaschine mit Dampferzeuger
US20090249639A1 (en) * 2008-04-02 2009-10-08 Samsung Electronics Co., Ltd. Dryer and method of controlling cleaning operation thereof
EP2287389A1 (de) * 2009-08-18 2011-02-23 BSH Bosch und Siemens Hausgeräte GmbH Dampfeinspritzvorrichtung für ein Wäschebehandlungsgerät und Wäschebehandlungsgerät
US20120005915A1 (en) * 2009-04-02 2012-01-12 Lg Electronics Inc. Clothes dryer having a steam generator using a hot air heater
EP3051016A1 (de) * 2015-02-02 2016-08-03 LG Electronics Inc. Verfahren zur steuerung einer trommelwaschmaschine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100753507B1 (ko) * 2005-03-25 2007-08-31 엘지전자 주식회사 드럼세탁기
KR100662473B1 (ko) * 2006-02-20 2007-01-02 엘지전자 주식회사 스팀발생장치를 이용한 건조기
KR101467773B1 (ko) * 2008-04-01 2014-12-03 엘지전자 주식회사 의류처리장치 및 의류처리장치의 제어방법
EP2636785B1 (de) * 2012-02-06 2019-07-03 LG Electronics Inc. Wäschereimaschine aufweisend eine Düse und ein Heizelement in einem Trocknungskanal und Steuerungsverfahren hierfür
CN105463812B (zh) * 2015-12-30 2019-03-01 Tcl家用电器（合肥）有限公司 洗烘一体机

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1992730A1 (de) * 2007-05-16 2008-11-19 Samsung Electronics Co., Ltd. Waschmaschine mit Dampferzeuger
US20090249639A1 (en) * 2008-04-02 2009-10-08 Samsung Electronics Co., Ltd. Dryer and method of controlling cleaning operation thereof
US20120005915A1 (en) * 2009-04-02 2012-01-12 Lg Electronics Inc. Clothes dryer having a steam generator using a hot air heater
EP2287389A1 (de) * 2009-08-18 2011-02-23 BSH Bosch und Siemens Hausgeräte GmbH Dampfeinspritzvorrichtung für ein Wäschebehandlungsgerät und Wäschebehandlungsgerät
EP3051016A1 (de) * 2015-02-02 2016-08-03 LG Electronics Inc. Verfahren zur steuerung einer trommelwaschmaschine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018213432B3 (de) 2018-08-09 2020-01-23 E.G.O. Elektro-Gerätebau GmbH Wäschetrockner und Verfahren zum Betrieb eines Wäschetrockners

Also Published As

Publication number Publication date
PL3315648T3 (pl) 2020-11-16
CN108018669B (zh) 2022-02-11
EP3315648B1 (de) 2020-06-17
CN108018669A (zh) 2018-05-11

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