EP0962577B1 - Procédé de remplissage de l'eau dans une machine à laver commandée par programme - Google Patents

Procédé de remplissage de l'eau dans une machine à laver commandée par programme Download PDF

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Publication number
EP0962577B1
EP0962577B1 EP99110335A EP99110335A EP0962577B1 EP 0962577 B1 EP0962577 B1 EP 0962577B1 EP 99110335 A EP99110335 A EP 99110335A EP 99110335 A EP99110335 A EP 99110335A EP 0962577 B1 EP0962577 B1 EP 0962577B1
Authority
EP
European Patent Office
Prior art keywords
water
laundry
washing
filling
level
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.)
Expired - Lifetime
Application number
EP99110335A
Other languages
German (de)
English (en)
Other versions
EP0962577A1 (fr
Inventor
Ralf Menninger
Fritz Siebachmeyer
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.)
Diehl AKO Stiftung and Co KG
Original Assignee
Diehl AKO Stiftung and Co KG
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Filing date
Publication date
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Application filed by Diehl AKO Stiftung and Co KG filed Critical Diehl AKO Stiftung and Co KG
Publication of EP0962577A1 publication Critical patent/EP0962577A1/fr
Application granted granted Critical
Publication of EP0962577B1 publication Critical patent/EP0962577B1/fr
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
    • D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
    • D06F35/005—Methods for washing, rinsing or spin-drying
    • D06F35/006—Methods for washing, rinsing or spin-drying for washing or rinsing only
    • 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

Definitions

  • the invention relates to an improvement in the washing result in washing machines with washing drum rotating in a tub by optimization the free liquor available in the tub for rinsing, according to the procedure specified in the main claim.
  • the amounts of water required for the respective washing program sections depending on the amount of laundry and Type of laundry and regardless of the influence of different pressure conditions in the Line network can be set by means of the program control device, that the computer of the program control device in a first program part measures the different switch-on times of the solenoid valve and adds them up until the The water level in the tub has reached a level switch.
  • the value of this The sum is stored in a memory of the program control device and multiplied by a factor of a value table by the valve switch-on time for the following program section, for example for a rinse cycle determine.
  • the system adapts at the end of the washing process the existing conditions with regard to laundry filling and their suction behavior, and the entire one thereafter intended for the following rinse cycle
  • the amount of fresh water gets into the tub right at the beginning of the wash cycle fed.
  • this Approach for practical needs is not sufficient because the compact laundry filling of the drum which is stationary during the measuring process noticeably lower absorbency than the loosened laundry filling in the Rinsing revolving drum.
  • the result of this is that before insertion Free fleet made available for the rinse cycle at the start of the drum rotation partially soaked up in the then loosened laundry filling and therefore no longer the optimal volume for the actual rinsing process is available in the free fleet.
  • the water supply takes place in one Standstill phase of the loaded laundry drum until it reaches over a level switch predetermined target levels. Then the laundry moved for a limited time, so that depending on the absorbency of the laundry sets a water level that falls below the target level. Now it is at the target level refilled and the elapsed time measured. The measurement result is the amount of water to be refilled in the subsequent washing processes. So again there is not the suction behavior and thus the water requirement during the actual rinsing, but during at least one preceding one Program section determined. Added to this is the considerable one additional control engineering effort for only temporarily moving the Laundry and to determine the starting level for the next following Refill process up to the switching level.
  • GB 20 54 907 A, FR 2 550 560 A and DE 28 18 062 A deal under different aspects with the determination of a tub for the Amount of fresh water supplied to the wash cycle by measuring the inflow time to Response of a level switch, but without taking into account the pumping speed the filling currently in the tub and therefore in particular also without the problem of an optimal one with regard to the free fleet Flushing process.
  • the amount of free fleet i.e. the amount of water not bound in the laundry, should Rinse cycles should be larger than for wash cycles.
  • the object of the invention is a method of the beginning Specify the type mentioned by the tax-related simple way to fill the water in rinses adapted to the respective laundry is improved.
  • the above object is characterized by the features of characterizing part of claim 1 solved.
  • this pre-fill phase After this pre-fill phase it will Filling valve is not closed and preferably too the rotation of the laundry drum is not interrupted, but water will continue to flow as the drum rotates let in during a filling time (Filling phase), which - determined by the control unit - with a long pre-filling phase longer than with a short one Pre-filling phase.
  • the filling phase is preferred proportional to the pre-fill phase.
  • the filling valve is closed, whereby the laundry drum can continue to rotate. It will a water level that is higher for rinse cycles than in wash cycles and the respective pumping speed of the Items to be washed in the rinse cycle are adjusted.
  • Level switch or a level switch with one for the Additional switching level necessary for rinse cycle There is no additional one for the described method Level switch or a level switch with one for the Additional switching level necessary for rinse cycle.
  • the water level in the rinse cycle is from the same level or level switch determined that for the level in previous Wash cycles is provided. This represents one technical simplification for the washing machine.
  • the filling process described comprises two phases. He is one stage, however, because between the two phases Filling valve is not switched on and off. Moreover the filling process runs during the rinsing movement of the Washing drum. Both have the consequence that the Control unit, which is usually a program drum has, can be easily set up because less Program steps as required in the prior art are. Also in connection with the program drum standing microprocessor can be of a simple type his.
  • the figure shows filling diagrams of a rinse cycle.
  • a washing machine has one in a tub rotating drum. Water is in the Solution container can be admitted through a filling valve. At the A level switch is provided on the tub a target level Ns responds. Wash liquor is by means of a Pump can be pumped out of the tub.
  • the functions the washing machine - especially water intake, heating, Drum movements, draining - are done by one Control unit, for example a hybrid control unit with program drum and microprocessor, controlled. Essential parts of the program are washing, rinsing, Fling. Such washing machines are state of the art.
  • the wash liquor is suctioned off. If necessary, it is thrown in between.
  • the laundry is moist and the water level in the tub (free fleet) is low or approaches zero. In any case, it is below the target level Ns.
  • a rinse cycle should now follow.
  • the control unit rotates the laundry drum and opens the filling valve so that when turning Washing drum fresh water flows into the tub and the laundry moved by the laundry drum water up to the limit of its absorbency.
  • the control unit measures the time period tv from the beginning the wash cycle until the target level Ns is reached elapses.
  • the target level Ns is not one for the rinse cycle necessary water level, but to one for the previous ones Measure the necessary water level for washing and thus lower than desired for a rinse cycle.
  • the Desired level Ns is preferably such that at one Wash cycle with the smallest water level required Sufficiently large amount of not bound in the laundry Water is available. This is usually in the cooking program or the case in colored laundry programs.
  • the filling valve remains during a filling phase (Filling time tz) opened further.
  • Their duration is of the Control unit, specifically its microprocessor, determined in proportion to the duration of each Pre-filling.
  • Curve 1 shows a case in which the duration tv1 Pre-fill time is comparatively short, the target level Ns is achieved comparatively quickly because that is already in the previous wash cycle only dampened laundry absorbs comparatively little water. Accordingly the control unit provides a comparatively short duration tz1 for the filling time.
  • the control unit After the filling time tz1, the control unit does this Filling valve closed. It is then the water level N1 in reached the tub. This water level N1 includes one of the loading type of the Drum and component dependent on the type of laundry. He is about the fill time stored in the control unit tz1 set so that it for the rinse this Items to be washed are sufficiently high, but for reasons of Water saving is not unnecessarily high. After this Closing the filling valve runs the laundry drum in the Rinse cycle, at the end of which a pump down he follows.
  • Curve 2 shows a case in which a longer one Pre-fill time tv2 from opening the fill valve to Reaching the target level Ns is measured.
  • This longer one The pre-fill time tv2 arises because that comes from the previous wash cycle moistened current laundry more Water soaks up as the laundry leading to curve 1.
  • the control unit sets a fill time tz2, which is longer than the filling time tz1.
  • a water level N2 reached which is higher than the water level N1.
  • Influencing the filling time tz as a function of the pre-fill time tv is also different Water network pressures and / or water inflow quantities per Unit of time in their influence on the respective Water level N1 or N2 off. Because if water inflows more slowly, for example, the target level becomes Ns reached later, so that the filling time tz from the Control unit is easily extended accordingly, so that despite the slow water inflow again the water level N1 or N2 is reached.
  • control unit If there is a requirement that in successive Rinse cycles - with the same load of laundry - with different water levels N1 or N2 worked this can be stored in the control unit.
  • the control unit then provides, for example, each next rinse a gradually longer filling time tz on if in successive rinse cycles increased water level is desired.
  • the filling time tz can also be taken by other measures to be influenced. For example, is that Operating option "intensive rinsing" on the washing machine provided, then can be controlled by the user the filling time tz are extended, whereupon the Rinse cycle a higher water level than N1 or N2 established.
  • control unit can respond to a corresponding signal extend the filling time tz accordingly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Cleaning In General (AREA)

Claims (4)

  1. Procédé pour rincer du linge lavé dans une machine à laver, la machine à laver comportant une unité de commande et un récipient à lessive avec un capteur pour le niveau de consigne de l'eau pendant le cycle de lavage, et comportant un tambour à linge pour recevoir le linge, ainsi qu'un système d'arrivée et un système de vidange, et
    le cycle de rinçage s'effectuant avec un niveau d'eau supérieur aux cycles de lavage, la lessive de lavage étant pompée d'un cycle de lavage tout juste terminé, depuis le récipient à lessive, après quoi le tambour à linge est remis en rotation avec le linge mouillé par le cycle de lavage qui vient de se terminer, et la vanne d'arrivée d'eau est ouverte, ce qui fait que lorsque le tambour à linge tourne, de l'eau fraíche arrive dans le récipient à lessive, la durée d'ouverture (tv) jusqu'à l'intervention du capteur de niveau étant mesurée, pendant laquelle le linge a absorbé d'abord l'eau arrivant jusqu'à la limite de son pouvoir d'absorption, avant que le niveau de l'eau du bain maintenant libre monte jusqu'à l'intervention du capteur de niveau de consigne, et la vanne d'arrivée d'eau restant encore ouverte ensuite pendant que dure encore le mouvement de rinçage du tambour à linge, pendant un intervalle de temps, c'est-à-dire le temps de remplissage (tz) qui est proportionnel à l'ancienne durée d'ouverture jusqu'à l'intervention du capteur de niveau de consigne, après quoi la vanne d'arrivée d'eau est à nouveau fermée, et le cycle de rinçage est conduit jusqu'à la fin, malgré le pouvoir d'absorption du linge avec quantité d'eau optimalisée par rapport à la charge actuelle du tambour.
  2. Procédé selon la revendication 1, caractérisé en ce que la durée du temps de remplissage (tz), c'est-à-dire de la phase de remplissage, est prolongée d'un cycle de rinçage à l'autre, en particulier progressivement.
  3. Procédé selon l'une des revendications précédentes, caractérisé en ce que la durée du temps de remplissage (tz) peut être prolongée par une option de commande.
  4. Procédé selon l'une des revendications précédentes, caractérisé en ce que la durée du temps de remplissage (tz) peut être influencée en fonction d'un signal détectant la formation de mousse dans le tambour à linge.
EP99110335A 1998-05-30 1999-05-28 Procédé de remplissage de l'eau dans une machine à laver commandée par programme Expired - Lifetime EP0962577B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19824403 1998-05-30
DE19824403A DE19824403A1 (de) 1998-05-30 1998-05-30 Verfahren zum Wassereinfüllen bei einer programmgesteuerten Waschmaschine

Publications (2)

Publication Number Publication Date
EP0962577A1 EP0962577A1 (fr) 1999-12-08
EP0962577B1 true EP0962577B1 (fr) 2003-04-02

Family

ID=7869524

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99110335A Expired - Lifetime EP0962577B1 (fr) 1998-05-30 1999-05-28 Procédé de remplissage de l'eau dans une machine à laver commandée par programme

Country Status (3)

Country Link
EP (1) EP0962577B1 (fr)
DE (2) DE19824403A1 (fr)
ES (1) ES2196673T3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006061080B3 (de) 2006-12-22 2008-07-03 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Haushaltsgerät mit getaktet betriebenem Wassereinlassventil
US9080274B2 (en) * 2009-12-23 2015-07-14 Lg Electronics Inc. Washing method and washing machine
WO2011078612A2 (fr) * 2009-12-23 2011-06-30 Lg Electronics Inc. Procédé de lavage et machine à laver
DE102014106078B4 (de) * 2014-04-30 2017-08-24 Miele & Cie. Kg Feuchtwaschverfahren

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2818062C2 (de) * 1978-04-25 1983-04-14 G. Bauknecht Gmbh, 7000 Stuttgart Verfahren und Anordnung zum Steuern des Flüssigkeitsstandes in einer Waschmaschine
IT1122245B (it) * 1979-07-20 1986-04-23 San Giorgio Elettrodomesti Dispositivo per il controllo e la regolazione del livello dell'acqua in una vasca in particolare per macchine lavabiancheria
DE3329345A1 (de) * 1983-08-13 1985-02-28 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren zur messung von wassermengen
DE3909021A1 (de) * 1989-03-18 1990-09-20 Miele & Cie Verfahren zur steuerung des programms in einer waeschebehandlungsmaschine

Also Published As

Publication number Publication date
ES2196673T3 (es) 2003-12-16
DE19824403A1 (de) 1999-12-02
EP0962577A1 (fr) 1999-12-08
DE59904807D1 (de) 2003-05-08

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