EP2275596A2 - Appareil domestique avec alimentation d'eau extérieure - Google Patents

Appareil domestique avec alimentation d'eau extérieure Download PDF

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Publication number
EP2275596A2
EP2275596A2 EP20100011927 EP10011927A EP2275596A2 EP 2275596 A2 EP2275596 A2 EP 2275596A2 EP 20100011927 EP20100011927 EP 20100011927 EP 10011927 A EP10011927 A EP 10011927A EP 2275596 A2 EP2275596 A2 EP 2275596A2
Authority
EP
European Patent Office
Prior art keywords
water
unit
domestic appliance
steam
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.)
Withdrawn
Application number
EP20100011927
Other languages
German (de)
English (en)
Other versions
EP2275596A3 (fr
Inventor
Hans-Joachim Klug
Uta Kreutzfeldt
Roland Siedentopf
Johannes Sierl
Thomas Loy
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.)
Electrolux Home Products Corp NV
Original Assignee
Electrolux Home Products Corp NV
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 Electrolux Home Products Corp NV filed Critical Electrolux Home Products Corp NV
Publication of EP2275596A2 publication Critical patent/EP2275596A2/fr
Publication of EP2275596A3 publication Critical patent/EP2275596A3/fr
Withdrawn legal-status Critical Current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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/088—Liquid supply 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/60—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to auxiliary conditioning or finishing agents, e.g. filling level of perfume tanks
    • D06F2103/62—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to auxiliary conditioning or finishing agents, e.g. filling level of perfume tanks related to systems for water or steam used for conditioning or finishing
    • 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
    • D06F2105/58—Indications or alarms to the control system or to the user
    • 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
    • D06F2105/58—Indications or alarms to the control system or to the user
    • D06F2105/60—Audible signals
    • 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
    • D06F2105/62—Stopping or disabling machine operation
    • 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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/47—Responding to irregular working conditions, e.g. malfunctioning of pumps 
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/007—Arrangements of water softeners
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/40—Steam generating 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
    • D06F58/20—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
    • D06F58/32—Control of operations performed in domestic laundry dryers 
    • D06F58/34—Control of operations performed in domestic laundry dryers  characterised by the purpose or target of the control
    • D06F58/50—Responding to irregular working conditions, e.g. malfunctioning of blowers

Definitions

  • the invention relates to a domestic appliance, especially to a dryer for textiles or a washing machine.
  • a problem is that the steam unit needs to be supplied by fresh water which has to be free from lime and other contaminations.
  • the condense water from the condensation in a dryer can not be used because it contains foreign matters and dirt which is cumulated during the condensation process in the condensate reservoir. If such water would be used dirt and other foreign matters would be brought again into the textile, which is not desirable.
  • the invention is characterized in that the domestic appliance is equipped with a steam unit for applying water steam, especially hot or superheated steam, to the textiles, that a water supply unit is provided in and/or at the domestic appliance for receiving water destined for the steam unit and for forwarding this water to the steam unit, and that the water supply unit is designed to be connected to an external water source, especially a public water supply.
  • connection piece especially a nipple
  • this nipple hat to be hydraulically connected to the water inlet of the steam unit.
  • the external water source provides pressurised water.
  • additional water pumps to supply water to the steam unit and/or steam pumps downstream the steam generator, which might be necessary in the water reservoir solution, are not required.
  • a further advantage is the easy handling of the water supply for the steam unit. After installing the hydraulic connection to the external water source no further steps are necessary. At the most a water tap has to be opened. However, a periodical filling of a water reservoir with water destined for the steam unit is not necessary.
  • the water supply unit comprises a connecting piece to enable the connection of the water supply unit to the external water source, wherein the connecting piece especially is a nipple and/or wherein the connecting piece preferably is located at a back side and/or rear panel of the domestic appliance.
  • the connecting piece can be or is connected to the external water source via a tube, especially a flexible tube.
  • the water supply unit can be a modular kit or unit. This allows the integration of one type of water supply unit in different domestic appliances. Furthermore this enables to built a domestic appliance in different versions or models, with and without a water supply unit. Further the modular design of the water supply unit permits retrofitting of water supply units at domestic appliances.
  • Public water supply or other external water sources may provide water with a water hardness which is to high for a long-term save operation of the steam unit.
  • the water supply unit comprises a water softening unit arranged to provide water with a preset and/or reduced and/or low water hardness for the steam unit. This upstream softening of the water ensures a save, steady and long-term operation of the steam unit, especially of a steam generator of the steam unit.
  • the water softening unit can be a modular kit or unit. This allows the integration of one type of softening unit in different domestic appliances. Furthermore this enables to built a domestic appliance in different versions or models, with and without a water softening unit. Further the modular design of the water softening unit permits retrofitting of water softening units at domestic appliances.
  • the water softening unit can comprise a filter cartridge, especially an exchangeable filter cartridge. This enables a simple handling of the softening unit.
  • the water softening unit comprises a filter-cartridge-exchange-signal-device, especially a display and/or lamp, for informing that the filter cartridge should be changed.
  • a filter-cartridge-exchange-signal-device especially a display and/or lamp, for informing that the filter cartridge should be changed.
  • a system of at least two sensors is provided to enable the determination of a pressure loss across the water softening unit and, in case the determined pressure loss exceeds a given value, to activate a filter-cartridge-exchange-signal-device.
  • at least one first sensor is provided upstream the water softening unit and at least one second sensor is provided downstream the water softening unit.
  • the water softening unit can be arranged inside the domestic appliance, especially in such a manner that it is accessible from outside to enable an exchange of a filter cartridge, preferably via a control panel or via a front cover or via a front door region or via a condensate reservoir reception slot or via a side cover of the domestic appliance.
  • the water softening unit can be arranged outside the domestic appliance, especially hydraulically engaged in a tube connecting the water supply unit to the external water source and/or in a connecting piece, preferably a nipple, provided at the domestic appliance to enable the connection of the water supply unit to the external water source.
  • a filter for example a sieve
  • a filter can be provided in the water supply unit and/or in a hydraulic connection between the external water source and the domestic appliance and/or at the external water source, for filtering contaminations, for example dirt, contained in the water provided by the external water source.
  • the water supply unit comprises a switching device and/or control unit for regulating and/or interrupting water supply from the external water source. This ensures that water is only provided at the steam unit when it is required, especially in the amount required.
  • the switching device and/or control unit is or comprises a valve, especially a magnetic valve, preferably an electrically and/or electronically controlled magnetic valve.
  • the water supply unit can comprise a water-volume-flow-control-unit.
  • This water-volume-flow-control-unit can be arranged to provide a preset water volume flow for the steam unit.
  • the water volume flow provided by the water-volume-flow-control-unit can be adjustable.
  • the water-volume-flow-control-unit can be a electrical and/or mechanical and/or hydraulic system.
  • the water-volume-flow-control-unit is implemented in a connecting piece, preferably a nipple, provided at the domestic appliance to enable the connection of the water supply unit to the external water source.
  • the water-volume-flow-control-unit can be a flow limiter, for instance a flow limiter comparable to the flow limiters know from washing machines.
  • the domestic appliance can comprise means for preventing the activation and/or operation of the steam unit, especially of a steam generator, in this case. This avoids damage of the steam unit and therefore provides an extension of lifetime of the steam unit.
  • the means for preventing the activation of the steam unit comprise a sensor, especially a water pressure sensor, preferably implemented in or at or near a water intake of the steam unit and/or in or at the water supply unit and/or in the steam unit.
  • This sensor can be one of the sensors already mentioned in regard to the determination of a pressure loss across the water softening unit.
  • the means for preventing the activation of the steam unit will switch of the steam unit or at least the steam generator or they will prevent the activation of steam unit or steam generator.
  • This controlling can be integrated in a control unit of the domestic appliance.
  • An alarm unit especially a display and/or lamp and/or speaker, can be provided, whereby the alarm unit is arranged to signal a water deficiency and/or a malfunction of the steam unit and/or a malfunction of the water supply unit. Thereby a malfunction can be detected in short time, a rapid correction of the underlying problem is possible.
  • a water reservoir can be located in or at the domestic appliance for receiving water for the steam unit.
  • This water reservoir can be located in a reception slot in the domestic appliance.
  • the water reservoir can hydraulically be connected with the steam unit.
  • the water reservoir can hydraulically be connected with the external water source, particularly via the water supply unit, especially downstream the water softening unit.
  • This embodiment enables an automatic filling of the water reservoir.
  • the hydraulic system of the domestic appliance can be designed in such a way that the hydraulic connection of the steam unit to the water supply unit is solely achieved via the water reservoir. In this case the hydraulic connection to the external water source it only necessary occasionally, to fill the water reservoir. Thus, sensors or other means for preventing the operation of the steam unit if no water from the external water source is forwarded to the steam unit are not necessary.
  • the hydraulic system can comprise an immediate hydraulic connection between the water supply unit and the steam unit, additionally and parallel to the hydraulic connection via the water reservoir.
  • Overall the invention provides an extension of the lifetime of the steam unit, especially because of the supply of a preset, constant and steady water volume flow and/or because of a preset, particularly low water hardness.
  • FIG 1 a domestic appliance 1, e.g. a home dryer for drying textiles or a washing machine, is shown in a schematic side elevation, the front side 7 and the back side 6 of the appliance 1 are indicated. Different components which are of relevance for the invention are schematically shown inside and outside the appliance 1.
  • a drum where textiles are placed for drying and/or washing is not shown, but of course the steam outlet nozzle 21 (which is only shown schematically) is arranged to inject the steam into this drum.
  • the steam unit 2 via electrical connections 24 is electrically connected to a domestic appliance control unit 22 which amongst other things controls the steam unit 2.
  • a water supply unit 3 is schematically depicted.
  • This water supply unit 3 comprises a connection piece 5, namely a nipple 5, for a hydraulic connection to an external water source 4.
  • the external water source 4 is a public water supply, symbolised by a water tap.
  • the hydraulic connection is realised by means of a flexible tube 8.
  • a water-volume-flow-control-unit 15 Downstream the connecting piece 5 a water-volume-flow-control-unit 15, namely a flow limiter as known from the usual water supply of washing machines, is installed.
  • This water-volume-flow-control-unit 15 makes sure that a preset water volume flow is provided for the steam unit 2.
  • the water volume flow provided by the water-volume-flow-control-unit 15 can be adjustable, but this is not shown in FIG 1 .
  • the Water-volume-flow-control-unit 15 and the connection piece 5 can be one unit, especially the water-volume-flow-control-unit 15 can be implemented in the connecting piece 5.
  • a switching device 13 Downstream the water-volume-flow-control-unit 15 a switching device 13, which also forms a control unit 13, is arranged.
  • This switching device 13 is designed for regulating and/or interrupting water supply from the external water source 4.
  • a magnetic valve 14 which preferably is an electrically and/or electronically controlled magnetic valve 14.
  • the switching device 13 is electrically connected to the control unit 22 of the domestic appliance 1 via electrical connections 24.
  • the water from the external water source 4 is conducted to a water softening unit 9 via hydraulic connections 23. It is the purpose of this softening unit 9 to provide water with a reduced, low water hardness for the steam unit 2.
  • a desired water hardness can be preset by the design of the softening unit 9 and/or by adjustment of the softening unit 9.
  • the softening unit 9 is designed as a modular unit that can be used for several domestic appliances and that enables retrofitting of appliances.
  • An essential part of the softening unit 9 is an exchangeable filter cartridge 10. To enable an exchange of the filter cartridge 10 a door 11 is provided at the front side 7 of the domestic appliance 1.
  • a further part of the water softening unit 9 is a filter-cartridge-exchange-signal-device 12 which is a lamp 12, which is electrically connected with the main part of the water softening unit 9 via electrical connections 24 and via the control unit 22 of the domestic appliance 1, which also controls the activation of the filter-cartridge-exchange-signal-device 12.
  • the task of the filter-cartridge-exchange-signal-device 12 is to inform that the filter cartridge 10 should be changed.
  • a sensor 17, especially a water pressure sensor 17, is implemented in the water supply unit 3, in FIG 1 upstream the water softening unit 9.
  • a further sensor 17 is implemented in the hydraulic connections 23 upstream the steam unit 2.
  • the providing of both sensors 17, one upstream and one downstream the water softening unit 9 has the advantage that a pressure loss across the water softening unit 9 can be determined by comparing the measured pressure values of both sensors 17. In case the determined pressure loss exceeds a given value, an exchange of the filter cartridge 10 is necessary and the filter-cartridge-exchange-signal-device 12 can be activated.
  • An integration of a sensor in the steam unit 2, upstream the steam generator 16, is possible, too.
  • the sensor 17 is electrically connected to an alarm unit 18, which here is a lamp 18, via electrical connections 24 and via the control unit 22 of the domestic appliance.
  • the alarm unit 18 signals a water deficiency detected by the sensor 17. It is controlled by the control unit 22 of the appliance 22 and can also be used to signal a malfunction of the steam unit and/or a malfunction of the water supply unit. When a water deficiency is detected by the sensor, the control unit 22 will switch off the steam generator 16 or the steam unit 2 or will prevent the activation of the steam generator 16 or the steam unit 2.
  • FIG 2 shows a second, different domestic appliance 1 which again can be a home dryer for drying textiles or a washing machine.
  • FIG 2 again is a schematic side elevation of the appliance 1.
  • the illustration and the construction of the appliance 1 are comparable to the appliance depicted in FIG 1 .
  • the only difference is an additional unit, namely an additional water reservoir 19 for receiving water for the steam unit 2.
  • This water reservoir 19 is located in a reception slot 20 inside the domestic appliance 1, which is schematically depicted in FIG 2 .
  • the water reservoir 19 has to be filled with water destined for the steam unit 2.
  • To forward this water to the steam unit 2 the water reservoir 19 is hydraulically connected with the steam unit 2 via hydraulic connections 23.
  • the water reservoir 19 is hydraulically connected to the external water source 4, particularly via the water supply unit 3, especially downstream the water softening unit 9.
  • This embodiment enables an automatic filling of the water reservoir 19, particularly controlled by a water level sensor integrated in the water reservoir 19.
  • the hydraulic system of the domestic appliance 1 can be designed in such a way that the hydraulic connection of the steam unit 2 to the water supply unit 3 is solely achieved via the water reservoir 19.
  • the hydraulic system can comprise an immediate hydraulic connection between the water supply unit 3 and the steam unit 2, additionally and parallel to the hydraulic connection via the water reservoir 19.
  • the providing of the water reservoir 19, especially the mentioned hydraulic connection between external water source 4 and the water reservoir 19, enables to use a usual steam unit in the domestic appliance, particularly a steam unit known from domestic appliances with steam units which are not hydraulically connected to an external water source. Especially the hydraulic connection to the external water source it only necessary occasionally, to fill the water reservoir. Thus, sensors or other means for preventing the operation of the steam unit if no water from the external water source is forwarded to the steam unit are not necessary.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Treatment Of Water By Ion Exchange (AREA)
  • Cookers (AREA)
EP20100011927 2007-02-19 2007-02-19 Appareil domestique avec alimentation d'eau extérieure Withdrawn EP2275596A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07003407.9A EP1959043B1 (fr) 2007-02-19 2007-02-19 Appareil domestique avec alimentation d'eau extérieure

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP07003407.9A Division-Into EP1959043B1 (fr) 2007-02-19 2007-02-19 Appareil domestique avec alimentation d'eau extérieure
EP07003407.9 Division 2007-02-19

Publications (2)

Publication Number Publication Date
EP2275596A2 true EP2275596A2 (fr) 2011-01-19
EP2275596A3 EP2275596A3 (fr) 2011-04-27

Family

ID=38371040

Family Applications (2)

Application Number Title Priority Date Filing Date
EP20100011927 Withdrawn EP2275596A3 (fr) 2007-02-19 2007-02-19 Appareil domestique avec alimentation d'eau extérieure
EP07003407.9A Not-in-force EP1959043B1 (fr) 2007-02-19 2007-02-19 Appareil domestique avec alimentation d'eau extérieure

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP07003407.9A Not-in-force EP1959043B1 (fr) 2007-02-19 2007-02-19 Appareil domestique avec alimentation d'eau extérieure

Country Status (3)

Country Link
EP (2) EP2275596A3 (fr)
RU (2) RU2470102C2 (fr)
WO (1) WO2008101611A1 (fr)

Cited By (2)

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WO2014031753A1 (fr) * 2012-08-22 2014-02-27 Ecolab Usa Inc. Utilisation d'une eau de traitement dans des applications de nettoyage
CN107938266A (zh) * 2017-12-29 2018-04-20 南京乐金熊猫电器有限公司 一种洗衣机排水泵内异物感知方法和摆脱方法

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EP2554738B1 (fr) 2011-08-01 2018-04-18 Electrolux Home Products Corporation N.V. Machine à laver le linge
EP2554737B1 (fr) * 2011-08-01 2014-03-26 Electrolux Home Products Corporation N.V. Machine à laver le linge
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KR102009277B1 (ko) * 2012-10-22 2019-08-09 엘지전자 주식회사 히트펌프를 구비한 의류처리장치 및 그 제어방법
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EP3219845B1 (fr) * 2016-03-14 2019-11-13 Hisense (shandong) Refrigerator Co., Ltd. Appareil de linge avec filtre de fumée
KR102254901B1 (ko) * 2020-02-20 2021-05-24 엘지전자 주식회사 의류처리장치 및 의류처리장치의 제어방법
TWI830132B (zh) * 2021-02-08 2024-01-21 南韓商Ｌｇ電子股份有限公司 衣物處理裝置及其控制方法
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WO2014031753A1 (fr) * 2012-08-22 2014-02-27 Ecolab Usa Inc. Utilisation d'une eau de traitement dans des applications de nettoyage
CN107938266A (zh) * 2017-12-29 2018-04-20 南京乐金熊猫电器有限公司 一种洗衣机排水泵内异物感知方法和摆脱方法

Also Published As

Publication number Publication date
EP1959043B1 (fr) 2018-11-14
RU2012137233A (ru) 2014-03-10
RU2009134952A (ru) 2011-03-27
EP1959043A1 (fr) 2008-08-20
RU2470102C2 (ru) 2012-12-20
WO2008101611A1 (fr) 2008-08-28
EP2275596A3 (fr) 2011-04-27

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