EP2940204B1 - Procédé de lavage humide - Google Patents

Procédé de lavage humide Download PDF

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Publication number
EP2940204B1
EP2940204B1 EP15164403.6A EP15164403A EP2940204B1 EP 2940204 B1 EP2940204 B1 EP 2940204B1 EP 15164403 A EP15164403 A EP 15164403A EP 2940204 B1 EP2940204 B1 EP 2940204B1
Authority
EP
European Patent Office
Prior art keywords
laundry
washing drum
level
steam heating
washing
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
EP15164403.6A
Other languages
German (de)
English (en)
Other versions
EP2940204A1 (fr
Inventor
Markus Drücker
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.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
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Filing date
Publication date
Application filed by Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP2940204A1 publication Critical patent/EP2940204A1/fr
Application granted granted Critical
Publication of EP2940204B1 publication Critical patent/EP2940204B1/fr
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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
    • 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 
    • D06F33/44—Control of the operating time, e.g. reduction of overall operating time
    • 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
    • D06F2103/14—Supply, recirculation or draining of washing liquid
    • 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
    • D06F2103/18—Washing liquid level
    • 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
    • D06F2103/38—Time, e.g. duration
    • 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
    • D06F2105/02—Water supply
    • 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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/42—Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door
    • 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
    • D06F39/087—Water level measuring or regulating devices
    • 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

Definitions

  • the invention relates to a wet washing method with an automatic washing machine comprising a washing drum and a suds container as well as a heating element arranged below the washing drum, in which the moisture content of the laundry is below the saturation moisture level and in order to carry out an intermediate steam heating step, a quantity of water covering the heating element is let into the suds container.
  • a washing process known as damp washing
  • the moisture in the laundry is below the saturation moisture level.
  • the liquid in the washing process is bound in the laundry and the washing drum is not in contact with the liquid level in the tub.
  • a steam heating step which is also referred to as comfort smoothing in the case of final-spun laundry
  • the washing drum and the items of laundry located therein are heated by the hot steam.
  • steam heating a certain amount of water is fed into the tub in order to set a certain liquid level between the upper edge of the heating element and the lower edge of the washing drum and to ensure that the heating element is always covered with liquid and is not destroyed by dry heating.
  • the invention is based on the object of specifying a wet washing process in which the liquid level required for steam heating or comfort smoothing can be set in the tub with little effort and the heating element is prevented from running dry.
  • the core of the invention consists in the fact that the water to be filled into the tub for the steam heating process is let in up to a filling height h3 that is above the lower edge of the washing drum and contacts the items of laundry, and during a rotary movement of the washing drum due to the suction effect of the laundry, namely up to the contact of the laundry with
  • a steam heating liquid level h2 is set automatically at the height of the bottom edge of the washing drum and thus well above the top edge of the radiator.
  • the filling height h3 which is not exactly specified, can be set with little control engineering effort and thus at low cost, while for the steam heating process a precise steam heating liquid level is set automatically without any control engineering effort if the filling height is lowered to the height of the lower edge of the washing drum due to the suction effect of the laundry and because there is no longer any contact between the water and the laundry, it cannot be lowered any further. This means that steam heating can be carried out safely without the risk of drying out and the associated destruction of the radiator.
  • the setting of the filling level h3 is carried out using a time measurement with a known volume flow, a volume flow measuring device or a filling level measuring device.
  • the maximum filling height h3 is slightly above the lower edge of the washing drum and is determined by the humidity and thus the absorbency of the laundry, the amount of laundry in the washing drum and the geometry of the tub.
  • the filling height h3 is preferably in a range of two to three centimeters above the lower edge of the washing drum. This means that the water above the steam heating liquid level can be easily absorbed by the laundry.
  • the radiator is already switched on when the filling height h3 is reached, while the steam heating operation for heating the items of laundry and the washing drum only starts when the steam heating liquid level h2 is reached.
  • the washing machine designed for wet washing comprises a washing drum 2 rotatably arranged in a tub 1 for receiving the items of laundry 3.
  • a heating element 4 provided for steam heating is in the lower area of the tub 1, to which a bypass line 5 and a drain line 6 are connected, arranged.
  • a drain pump 7 is integrated into the drain line 6 .
  • a circulation pump 8 integrated into the circulation pipe 5 pumps suds out of the tub 1 and sprays them back into the washing drum 2 in order to better distribute the water and detergent in the laundry.
  • the washing process takes place when the moisture content of the laundry is below the saturation moisture level.
  • the heating of the laundry in the washing process or the so-called comfort smoothing of the laundry after the final spin cycle are realized by steam heating, in which a liquid level is reached by letting water into the tub 1, which ensures that the heating element 4 is completely covered with water during the entire heating phase and thus dry heating and destruction of the radiator is prevented.
  • the filling height h3 of the water filled into the tub 1 before the steam heating is not exactly determined, but is in any case slightly, for example two to three centimeters, above the lower edge of the washing drum 2, which is characterized in the drawing by a steam heating liquid level h2 .
  • the Feeding the water up to the filling height h3 can be regulated with little control effort, for example by measuring the time when the volume flow is known or using a volume flow meter or an analog pressure sensor without taking into account existing disturbance variables, since an exact setting of the filling height h3 is not necessary.
  • H1 denotes a minimum filling level which corresponds to the upper edge of the radiator 3 and which, in order to prevent the radiator from being destroyed, must not be fallen below during steam heating.
  • the washing drum is set in a rotary motion, in which the items of laundry 3 in contact with the water, the moisture content of which is below the saturation moisture level, absorb water until the steam heating Liquid level h2 at the level of the lower edge of the washing drum 2 is reached.
  • the steam heating liquid level h2 in the tub 1 has thus automatically adjusted, i.e. solely due to the suction effect of the laundry items 3, to a precisely defined level above the heating element 3, at which the heating element 3 is completely covered with water and without the danger of dry heating can be operated safely.
  • the heater can be switched on quickly, ie immediately when the fill level h3 is reached, with the actual steam heating process only starting when the steam heating liquid level h2 is reached at the lower edge of the washing drum 2 .
  • the control effort for setting the filling height h3 is comparatively low, while the exact setting of the steam heating liquid level h2 is achieved solely by the suction effect of the laundry.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Detergent Compositions (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Claims (4)

  1. Procédé de lavage humide comportant une machine à laver automatique comprenant un tambour de lavage (2) et une cuve à lessive (1) ainsi qu'un élément chauffant (4) disposé sous le tambour de lavage, la teneur en humidité du linge étant inférieure à l'humidité de saturation et une quantité d'eau recouvrant l'élément chauffant (4) étant admise dans la cuve à lessive (1) pour effectuer une étape intermédiaire de chauffage à la vapeur, l'eau étant admise, dans une première étape, jusqu'à un niveau de remplissage h3 situé au-dessus du bord inférieur du tambour de lavage (2) et en contact avec les articles de linge (3), puis l'eau étant absorbée par le linge, dans une deuxième étape, lors d'un mouvement de rotation du tambour de lavage (2) jusqu'à ce que, en raison de l'effet d'aspiration du linge, un niveau de liquide de chauffage à la vapeur h2 est réglé au niveau du bord inférieur du tambour de lavage et donc bien au-dessus du bord supérieur de l'élément chauffant h1 et le contact du linge avec l'eau admise prend fin, puis le chauffage à la vapeur est effectué dans une troisième étape,
    caractérisé en ce
    que l'élément chauffant (4) est activé lorsque le niveau de remplissage h3 est atteint et l'opération de chauffage à la vapeur permettant de chauffer les articles de linge (3) et le tambour de lavage (2) démarre lorsque le niveau de liquide de chauffage à la vapeur h2 est atteint.
  2. Procédé selon la revendication 1, caractérisé en ce que le niveau de remplissage h3 est réglé à l'aide d'une mesure du temps lors d'un débit volumique connu, d'un débitmètre volumique ou d'un dispositif de mesure de niveau de remplissage.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que le niveau de remplissage maximal h3 se situe au-dessus du bord inférieur du tambour de lavage et dépend de l'humidité et donc de la capacité d'absorption du linge, de la quantité de linge et de la géométrie de la cuve à lessive.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que le niveau de remplissage h3 se situe dans une plage de deux à trois centimètres au-dessus du bord inférieur du tambour de lavage.
EP15164403.6A 2014-04-30 2015-04-21 Procédé de lavage humide Active EP2940204B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014106078.4A DE102014106078B4 (de) 2014-04-30 2014-04-30 Feuchtwaschverfahren

Publications (2)

Publication Number Publication Date
EP2940204A1 EP2940204A1 (fr) 2015-11-04
EP2940204B1 true EP2940204B1 (fr) 2022-06-15

Family

ID=52987982

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15164403.6A Active EP2940204B1 (fr) 2014-04-30 2015-04-21 Procédé de lavage humide

Country Status (4)

Country Link
EP (1) EP2940204B1 (fr)
DE (1) DE102014106078B4 (fr)
ES (1) ES2918849T3 (fr)
PL (1) PL2940204T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019134182A1 (de) * 2019-12-12 2021-06-17 Miele & Cie. Kg Verfahren und Vorrichtung zum Betreiben eines Reinigungsgeräts und Reinigungsgerät

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2957670A1 (fr) * 2014-06-18 2015-12-23 Miele & Cie. KG Procédé pour laver du linge en état humide

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3913642C2 (de) * 1989-04-26 1996-05-02 Aeg Hausgeraete Gmbh Programmgesteuerte Waschmaschine
DE4417240B4 (de) * 1994-05-17 2004-01-29 AEG Hausgeräte GmbH Verfahren zum Bestimmen des Wasserstandes in einer Waschmaschine
DE4431654C2 (de) * 1994-09-06 1998-11-26 Miele & Cie Verfahren zum Füllen eines Laugenbehälters einer Waschmaschine
DE19505639C2 (de) * 1995-02-18 2001-01-18 Miele & Cie Verfahren zur Überwachung des Flüssigkeitsstandes in einer Waschmaschine
DE19824403A1 (de) * 1998-05-30 1999-12-02 Ako Werke Gmbh & Co Verfahren zum Wassereinfüllen bei einer programmgesteuerten Waschmaschine
MY138987A (en) * 2002-03-25 2009-08-28 Lg Electronics Inc Washing method of washing machine
KR100519292B1 (ko) * 2002-11-26 2005-10-07 엘지전자 주식회사 세탁기의 포적심 알고리즘
AU2005328033B2 (en) * 2005-02-25 2009-05-14 Lg Electronics Inc. Washing a tub or a drum in a washing machine
KR100672371B1 (ko) * 2005-03-25 2007-01-24 엘지전자 주식회사 세탁 장치의 세탁 방법
US7765628B2 (en) * 2006-06-09 2010-08-03 Whirlpool Corporation Steam washing machine operation method having a dual speed spin pre-wash
US20110197638A1 (en) * 2010-02-17 2011-08-18 Bsh Home Appliances Corporation Steam generator for domestic household appliance
EP2767630B1 (fr) * 2013-02-13 2019-09-25 LG Electronics Inc. -1- Machine de traitement du linge et son procédé de commande

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2957670A1 (fr) * 2014-06-18 2015-12-23 Miele & Cie. KG Procédé pour laver du linge en état humide

Also Published As

Publication number Publication date
EP2940204A1 (fr) 2015-11-04
DE102014106078B4 (de) 2017-08-24
PL2940204T3 (pl) 2022-08-29
ES2918849T3 (es) 2022-07-20
DE102014106078A1 (de) 2015-11-05

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