EP2933366A1 - Procédé de fonctionnement d'un lave-linge avec dispositif de recirculation - Google Patents

Procédé de fonctionnement d'un lave-linge avec dispositif de recirculation Download PDF

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Publication number
EP2933366A1
EP2933366A1 EP15162190.1A EP15162190A EP2933366A1 EP 2933366 A1 EP2933366 A1 EP 2933366A1 EP 15162190 A EP15162190 A EP 15162190A EP 2933366 A1 EP2933366 A1 EP 2933366A1
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EP
European Patent Office
Prior art keywords
washing
drum
speed
washing machine
liquid
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Withdrawn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
EP15162190.1A
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German (de)
English (en)
Inventor
Peter Zinkann
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
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 Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP2933366A1 publication Critical patent/EP2933366A1/fr
Withdrawn legal-status Critical Current

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    • 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
    • D06F39/083—Liquid discharge or recirculation arrangements
    • D06F39/085—Arrangements or adaptations 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 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/088—Liquid supply arrangements

Definitions

  • the invention relates to a method for operating a washing machine, in particular drum washing machine, with a tub for receiving the washing liquid, with a washing tub driven in the tub, driven by a drive motor laundry drum for receiving the laundry to be treated, with an inlet device for the water intended for the washing process and with an adding device for liquid and / or powdered detergents and conditioners, and with a Umflut founded which conveys the washing or treatment liquid from the lower portion of the tub in the circulation in a higher region of the tub in the laundry drum by means of a Umflutpumpe, said Washing or treatment liquid is introduced via an injection nozzle into the interior of the laundry drum.
  • Washing machines of the aforementioned type generally have a radiator in the tub to heat the washing liquid according to the program during the washing process can.
  • a heating element for heating the washing and treatment liquid is provided in the lower region of the washing machine in a known manner, and the washing machine is equipped with a circulating device. Since during flooding, a large proportion of the free wash liquor is in the circulating system, there is a risk that the radiator is temporarily no longer covered with liquid in the tub. Therefore, it is proposed to provide a washing phase in the wash cycle in which the radiator is switched off when the circulating mode is activated.
  • the speed of the laundry drum is then increased to a value above the application speed, so that quasi-driven by the spin effect, the washing liquid bound in the laundry.
  • the switched circulating pump is the washing liquid of the laundry in the constant cycle fed again.
  • the washing liquid is introduced into the laundry drum in a known manner via an injection nozzle arranged in the door sealing ring. This procedure is intended to ensure and accelerate the complete wetting of the laundry.
  • the invention thus has the problem of providing a method for operating a washing machine, by means of which the energy and water consumption during machine washing can be further reduced.
  • the achievable with the present invention consist primarily in the fact that by dispensing with a radiator in the tub of the machine, a further saving of water and the reduction of electrical energy consumption can be realized.
  • this provides the advantage that the otherwise inevitably formed by the installation of a radiator dead space between the laundry drum and the tub bottom can be reduced. Thus, less water is needed during the washing process and the washing effect can be intensified by the rotation of the laundry drum by the free wash liquor.
  • the elimination of the radiator means not only the saving of this component, also the related calcification problems can no longer be relevant. Since the washing liquid no longer needs to be heated within the tub, also eliminates the technical control effort for the temperature control measures and dry running protection.
  • the process according to the invention makes use of the general development in modern detergents and in heating technology in its implementation.
  • an expedient embodiment of the invention provides to equip the washing machine with a hot water connection.
  • the washing machine can be preceded by a water boiler, or simple heating devices in the manner of a continuous flow heater can be provided within the washing machine in the inflow path for the fresh water or in an inflow path of the washing liquid into the lye container.
  • the flooding is operated by means of a variable-speed circulating pump in order to be able to adjust its delivery rate by means of a correspondingly designed control device as a function of the amount of liquid present in the process.
  • an essential component of the invention is to further develop the washing mechanism during the washing process in such a way that a better laundry distribution is established in the laundry drum, whereby the formation of a uniform laundry ring for the tumble-flop is favored.
  • the washing process in repeated repetition substantially comprises three treatment phases, in which the laundry drum is operated at different speed levels.
  • a first component is the so-called flooding spin with a spin speed above the application speed, with which the introduced by the flooding in the laundry washing liquid is constantly expelled again.
  • This is followed by the treatment phase, in which the laundry drum is operated at a washing speed below the application speed and with activated flooding.
  • Both treatment phases are aimed primarily at achieving a particularly intensive moisture penetration of the laundry with that of the washing liquid in order ultimately to be able to achieve a good washing effect with the relatively small amount of water.
  • a further treatment phase in which the laundry drum is operated at a speed below the washing speed and, optionally, a short stoppage of the laundry drum can be set. This is to ensure that the laundry before start up on the flood spewing in the laundry drum better distributed and can redistribute, whereby the formation of a uniform Wäscherings is favored.
  • the spin speed above the application speed for the Umwutschleudern can be between 70 to 600 U / min
  • the washing speed provided during the washing process can be set to 30 to 60 U / min usually.
  • the intended for the better distribution of the laundry speed below the aforementioned washing speed is preferably adjusted to 10 to 20 U / min.
  • the treatment phase serving to redeploy the laundry is activated only for a short period of time compared to the two washing-active treatment phases so that the overall washing process is not prolonged too much.
  • a subsequent, short-term shutdown of the laundry drum can also be advantageous for a redistribution of the individual laundry items in the distribution or switching phase, before being brought back up to the spin speed for the flooding spin.
  • the injection nozzle for introducing the washing or treatment liquid is formed with a device through which the washing drum injecting into the laundry drum.
  • or treatment liquid can detect the laundry ring formed in the laundry drum in the direction of the entire depth of the laundry drum. This can be realized for example by a movably formed injection nozzle, which is driven by a small impeller. There are also variants that work on the lawn sprinkler principle.
  • FIG. 1 a drum washing machine 1 is shown in conventional design.
  • the rotatably mounted laundry drum 3 is housed in the tub 2, which is driven by the drive motor 4.
  • the water connection 6 is indicated, which in this embodiment also includes a hot water connection.
  • the circulating pump 9 is placed, which introduces via the Umflut Arthur 10 and disposed in the door cuff 12 injector 11 which collects in the collecting pot 19 washing liquid into the washing drum 3, as is illustrated by the spray jets 15.
  • the feed opening 14 is accessible to the laundry drum 3.
  • the door sight glass 16 protrudes into the charging opening 14.
  • the waste water can be derived from the washing machine 1 to the outside after completion of the treatment process.
  • the Umflutpumpe 9 and the drain pump 17 are connected to the collecting pot 19, which catches the effluent from the tub 2 washing liquid, so that there is sufficient liquid for the operation of the two pumps 9 and 17 on the suction side.
  • a water level sensor 22 is shown symbolically in the present embodiment, which controls the circulating pump 9 in conjunction with the control unit 21.
  • the indicated in the upper interior of the washing machine 1, central program control device 20, ensures the program-specific control of the washing machine first
  • the inventive method for operating the drum washing machine is based essentially on the basic idea that is dispensed with the usual state of the art radiator in the lower region of the tub 2. Of the Washing process is thus carried out without heating the washing and treatment liquid present in the tub.
  • the washing process is operated primarily with the cold or heated fresh water available at the connection location of the washing machine.
  • the heating of the incoming water may be required.
  • the drum washing machine 1 has a hot water connection 6, via which, if necessary, the fresh water heated by the in-house heating system can be supplied to the machine at a higher temperature.
  • the circulation pumps in the service water pipes ensure that fresh water with a temperature between 50 and 60 ° C is available at the hot water connection if required.
  • washing machine is supplied with hot water from an upstream water boiler.
  • the aim is to carry out the washing process as possible with a small amount of water and reduced water temperatures
  • alternatives can be realized with little effort and cost, in which a need for heating of the water also takes place inside the washing machine, before the washing liquid into the tub is initiated.
  • This can be done by a simple heater in the manner of a water heater in the inlet path to the adding device for the detergent or in the inlet path to the tub.
  • the flooding during the washing process is operated by the circulating pump 9, which is designed to be variable in speed.
  • the circulating pump 9 which is designed to be variable in speed.
  • an analog water level sensor 22 in the collecting pot 19, which adjusts the delivery rate of the circulating pump 9 in dependence on the amount of water present in the collecting pot 19 in connection with the control device 21. This is taken into account the fact that only a very small amount of free water is available for the washing process and the suction of air or dry running of the circulating pump 9 is to be avoided.
  • phase II the laundry drum is operated at the washing speed, which may be between 30 and 60 rpm.
  • the speed of the laundry drum is then reduced to a speed below the washing speed.
  • This speed can be adjusted in an advantageous embodiment at 10 to 20 U / min.
  • a phase IV is still provided, in which by briefly switching off the drive motor, the laundry drum comes to a standstill. From the short-term standstill then takes place again on the spin speed for Umflutschleudern.
  • the time period for the treatment phase III understandably provided much shorter, so that the washing process is not extended significantly.
  • the frequency of activation compared to the washing active more effective treatment phases I and II can be reduced.
  • a standstill of the laundry drum should be made only for a short time, in which the laundry items can coincide in another distribution of laundry items in itself.
  • the treatment phase III and IV primarily the effect is to be achieved that results in a redistribution of the laundry, a redistribution of the individual laundry items in the laundry drum. This is to promote the formation of a uniform scrubbing which is important for the effect of flooding. It is important that the laundry to be treated applies evenly distributed to the drum shell of the laundry drum 3, so that in the ideal case almost in the middle of the laundry drum 3 forms a tunnel. As a result, the injection nozzle arranged in the door sealing ring can also act on the laundry items located in the depth of the laundry drum with the circulating liquid.
  • the injection nozzle is designed to be movable.
  • the injection nozzle can be driven by a small impeller or work in the manner of a lawn sprinkler.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
EP15162190.1A 2014-04-16 2015-04-01 Procédé de fonctionnement d'un lave-linge avec dispositif de recirculation Withdrawn EP2933366A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014105468 2014-04-16

Publications (1)

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EP2933366A1 true EP2933366A1 (fr) 2015-10-21

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EP15162190.1A Withdrawn EP2933366A1 (fr) 2014-04-16 2015-04-01 Procédé de fonctionnement d'un lave-linge avec dispositif de recirculation

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EP (1) EP2933366A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016209516A1 (de) * 2016-06-01 2017-12-07 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Steuerung
DE102020111616A1 (de) 2020-04-29 2021-11-04 Miele & Cie. Kg Verfahren zur Steuerung der Umflutpumpe einer Waschmaschine oder eines Waschtrockners

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4794661A (en) * 1986-03-11 1989-01-03 Zanussi Elettrodomestici S.P.A. Process for the treatment of laundry in a washing machine
US5233718A (en) * 1992-01-02 1993-08-10 Whirlpool Corporation Tumble method of rinsing fabric in a horizontal axis washer
DE19828002A1 (de) * 1998-06-24 1999-12-30 Miele & Cie Waschmaschine mit Anschlüssen für den Zulauf von kaltem und warmem Wasser
US20070283507A1 (en) * 2006-06-09 2007-12-13 Nyik Siong Wong Steam washing machine operation method having dry spin pre-wash
WO2008079070A1 (fr) * 2006-12-22 2008-07-03 Aktiebolaget Electrolux Lave-linge économe en eau, amélioré
EP2161365A2 (fr) 2008-09-09 2010-03-10 MIELE & CIE. KG Procédé de fonctionnement d'un lave-linge et lave-linge
EP2348151A1 (fr) 2010-01-25 2011-07-27 Miele & Cie. KG Procédé de fonctionnement d'un lave-linge, dispositif d'écoulement et lave-linge
EP2428608A1 (fr) * 2010-09-14 2012-03-14 Miele & Cie. KG Procédé de fonctionnement d'une pompe dans un appareil transportant l'eau, système mécatronique et lave-linge
DE102012105041B3 (de) * 2012-06-12 2013-05-08 Miele & Cie. Kg Waschmaschine oder Waschtrockner mit einer Einrichtung zum Umfluten und Aufheizen der Waschflotte
WO2013083434A2 (fr) * 2011-12-05 2013-06-13 Electrolux Home Products Corporation N.V. Procédé de rinçage de linge dans un lave-linge et lave-linge actionné selon le procédé

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4794661A (en) * 1986-03-11 1989-01-03 Zanussi Elettrodomestici S.P.A. Process for the treatment of laundry in a washing machine
US5233718A (en) * 1992-01-02 1993-08-10 Whirlpool Corporation Tumble method of rinsing fabric in a horizontal axis washer
DE19828002A1 (de) * 1998-06-24 1999-12-30 Miele & Cie Waschmaschine mit Anschlüssen für den Zulauf von kaltem und warmem Wasser
US20070283507A1 (en) * 2006-06-09 2007-12-13 Nyik Siong Wong Steam washing machine operation method having dry spin pre-wash
WO2008079070A1 (fr) * 2006-12-22 2008-07-03 Aktiebolaget Electrolux Lave-linge économe en eau, amélioré
EP2161365A2 (fr) 2008-09-09 2010-03-10 MIELE & CIE. KG Procédé de fonctionnement d'un lave-linge et lave-linge
EP2348151A1 (fr) 2010-01-25 2011-07-27 Miele & Cie. KG Procédé de fonctionnement d'un lave-linge, dispositif d'écoulement et lave-linge
EP2428608A1 (fr) * 2010-09-14 2012-03-14 Miele & Cie. KG Procédé de fonctionnement d'une pompe dans un appareil transportant l'eau, système mécatronique et lave-linge
WO2013083434A2 (fr) * 2011-12-05 2013-06-13 Electrolux Home Products Corporation N.V. Procédé de rinçage de linge dans un lave-linge et lave-linge actionné selon le procédé
DE102012105041B3 (de) * 2012-06-12 2013-05-08 Miele & Cie. Kg Waschmaschine oder Waschtrockner mit einer Einrichtung zum Umfluten und Aufheizen der Waschflotte

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016209516A1 (de) * 2016-06-01 2017-12-07 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Steuerung
DE102016209516B4 (de) 2016-06-01 2022-05-12 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Steuerung
DE102020111616A1 (de) 2020-04-29 2021-11-04 Miele & Cie. Kg Verfahren zur Steuerung der Umflutpumpe einer Waschmaschine oder eines Waschtrockners

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