EP2930262B1 - Commande d'amenée d'eau - Google Patents

Commande d'amenée d'eau Download PDF

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Publication number
EP2930262B1
EP2930262B1 EP15160854.4A EP15160854A EP2930262B1 EP 2930262 B1 EP2930262 B1 EP 2930262B1 EP 15160854 A EP15160854 A EP 15160854A EP 2930262 B1 EP2930262 B1 EP 2930262B1
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EP
European Patent Office
Prior art keywords
recirculation
laundry
speed
drum
spinning
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
EP15160854.4A
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German (de)
English (en)
Other versions
EP2930262A1 (fr
Inventor
Patrick Dummeier
Dirk Sieding
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
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.)
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Publication date
Application filed by Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP2930262A1 publication Critical patent/EP2930262A1/fr
Application granted granted Critical
Publication of EP2930262B1 publication Critical patent/EP2930262B1/fr
Active 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
    • 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

Definitions

  • the invention relates to a water supply control for wet washing with a washing machine.
  • the automatic washing machine has a lye container, a laundry drum and a flooding device.
  • In the wet washing washing liquid is completely bound in the laundry in the washing process and is driven out during a plurality of Umflutschleuder réellen and sprayed back into the laundry.
  • Such a generic water supply control describes the EP 2 246 469 A1 , In the beginning, a basic amount of water is introduced, and later in the process additional water is refueled in the case of circulating centrifugal phases.
  • the moisture of the laundry is below the saturation moisture, so that the washing liquid in the washing process is bound in the laundry. Due to a low, non-contacting the laundry drum washing liquid level in the tub, the washing liquid introduced into the laundry to achieve a uniform wetting and distribution of the detergent is expelled by Umwlschleudern and sprayed via a Umflut founded back into the laundry.
  • the term "circulating centrifugal" means that the laundry drum is rotated at a drum speed at which the laundry is at least partially applied to the drum basket, and at the same time promotes the circulating the washing liquid from a first region of the tub in a second region of the tub.
  • the washing liquid in the washing process and thus the moisture is gradually increased by introducing water through a water inlet device.
  • a water inlet device During the flooding spin, it must be ensured that the wash liquor level in the tub does not reach a value at which the laundry drum contacts or dips into the wash liquid because it results in foaming and washcoat formation on the laundry drum, significantly disrupting the washing process.
  • the water is supplied to the tub in relatively small portions of water, which has the consequence that the water supply phase for wet washing is relatively time-consuming and the flushing of a washing additive from a dispenser is difficult in the tub.
  • the invention thus raises the problem of controlling the water inlet into the tub in a wet-washing process of the type mentioned above so that the duration of the Water intake phase is kept as low as possible.
  • a washing additive from the Ein Hugheskasten be rinsed satisfactorily in the tub. According to the invention this problem is solved by a water supply control with the features of claim 1.
  • the achievable with the present invention consist in addition to achieving a satisfactory duration of the water inlet phase is that at the same time a washing additive is flushed out of the Ein Hugheskasten in the tub in a satisfactory degree.
  • the basic idea of the water supply control according to the invention in wet washing is that after initially a basic amount of water was supplied either volume controlled or up to a predetermined water level in the tub prior to the first Umwutschleudergang further Wasserportionen can be refueled between the Umwutschleuder réellen until the desired moisture content of the laundry is achieved , It is therefore not necessary that water is refueled during the circulating centrifuges.
  • the water supply control is terminated when the desired humidity of the laundry is reached. By refueling a portion of water in each Reversierphase nachzutankende water portion can be chosen relatively large, so that the duration of the water supply control can be kept relatively low.
  • Umwutschleuder réellen or Reversierphasen depends on the achievement of the desired moisture content of the laundry.
  • the laundry drum is rotated at a drum speed above the application speed and simultaneously promotes the Umflut recognized washing liquid from a first, preferably lower portion of the tub in a second, preferably upper portion of the tub, based on the operating position of the washing machine.
  • the reversing phase the laundry drum is rotated at a drum speed that is below the apply speed, the bypass device may, but need not, be deactivated. This ensures that the laundry drum does not spin in the reversing phase.
  • the laundry drum is rotated in the reversing phase at a relatively low drum speed or not rotated.
  • the reversing phase not only serves as a refueling step but also for redistributing the laundry. In the reversing phase, the laundry is evenly distributed in the laundry drum and potential laundry balls are dissolved.
  • the desired for the washing process moisture of the laundry can be set, for example, using the set in Umwutschleudergang drum speed of the laundry drum or the maximum drum set at a drum speed variation during Umwutschleudergangs and / or set to the end of the water inlet target height of the wash liquor in the tub.
  • the circulating device is deactivated in the reversing phase. Washing liquid can accumulate in the lower region of the tub, based on the operating position of the automatic washing machine. Washing liquid can drain from the laundry in the lower portion of the tub.
  • a pressure in the tub is measured at least during the circulating centrifuges. From the pressure of the washing liquid level can be determined in the tub, so that it can be ensured that the washing liquid level is below a value in which the washing liquid comes into contact with the laundry drum.
  • the tumbler drum speed can be varied so that the tumblers are operated with tumbler drum speed ramps.
  • the Umflutschleuder-drum speed can be increased continuously. Alternatively, the tumbler drum speed is gradually increased.
  • each circulating centrifugal cycle is started by rotating the laundry drum at a minimum circulating tumbler drum speed.
  • the minimum rollout drum speed is equal to or above the apply speed at which the wash is at least partially applied to a jacket of the laundry drum and below a critical drum speed.
  • the tumbler tumbler speed is increased continuously or stepwise up to a maximum tumbler speed.
  • the maximum purge spin speed is preferably above the critical drum speed. The purge cycle is terminated when the measured pressure is equal to or higher than a predetermined pressure limit.
  • the laundry drum is set to the minimum tumble drum speed upon reaching the maximum tumble drum speed and the minimum tumbler tumble speed is increased continuously or incrementally until the maximum tumbler tumble drum speed is reached.
  • the above steps i. Setting the tumbler tumbler speed to the minimum tumbler tumbler speed upon reaching the maximum tumbler tumbler speed and continuously increasing the minimum tumbler tumbler speed to the maximum tumbler tumbler speed are repeated until the measured pressure is equal to or higher than the predetermined pressure threshold value; so that the Umflutschleudergang is terminated. Refueling is possible in this embodiment not only in the reversing phases, but in addition to each resetting the drum speed to the minimum Umwutschleuderburniere.
  • a second variant of the Umflutschleudergang is terminated when reaching the maximum Umflutschleuder-drum speed. That the flooding cycle is terminated when the maximum floater drum speed is reached or when the measured pressure is equal to or higher than the predetermined pressure limit.
  • the second variant tends to take more time than the first variant, as more reversing phases must be performed.
  • a loading amount of the laundry in the laundry drum is determined prior to starting the first circulating spin cycle and the water portion is selected as a function of the loading amount.
  • the loading quantity is determined before the laundry is thoroughly moistened by means of an automatic loading sensor system.
  • the loading sensor can determine the loading amount, for example, from the weight-related lowering of the drum during loading with laundry. For determining the loading amount, any known method for determining the loading amount can be used.
  • the portions of water to be replenished in the respective several reversing phases are preferably adjusted such that the proportion of water is set lower with increasing number of reversing phases. This additionally reduces the risk of foaming.
  • the nachzutankenden water portions depend on the one hand on the load of the laundry in the laundry drum and on the other hand on the dimensions of the automatic washing machine.
  • the portion of water is too Start of the water supply control in the range of 1.0 to 5.0 liters and at the end of the water supply control in the range of 0.5 to 1.5 liters.
  • the minimum Umflutschleuder drum rotational speed is in the range of 80 to 150 Umin and -1, the maximum Umflutschleuder drum speed in the range of 300 to 600 Umin -1.
  • Fig. 1 is a purely schematic representation of a partial cross-sectional view of a washing machine 1 shown.
  • the washing machine 1 has a tub 2 for receiving washing liquid.
  • a laundry drum 3 for receiving laundry 5 is rotatably mounted.
  • the automatic washing machine 1 further comprises a circulating device 4, which can convey washing liquid from the lower region of the tub 2 into the upper region of the tub 2, based on the operating position of the automatic washing machine 1.
  • the circulating device 4 comprises a circulating pump 4a, a circulating line 4b and a circulating nozzle 4c.
  • the circulating pump 4a is set up to promote washing liquid from a drain pipe 7, which is arranged at the lower region of the tub 2, into the circulating line 4b when activated.
  • the circulating nozzle 4c is designed to inject the washing liquid conveyed by the circulating line 4b onto the laundry 5 or to inject it into it.
  • the drain pipe 7 is further connected to a drain device 6.
  • the drain device 6 has a drain pump 6a and a drain line 6b. When activated, the drain pump 6a conveys washing liquid from the drain pipe 7 into the drain pipe 6b, which usually discharges into a sewer (not shown).
  • the automatic washing machine 1 also has a pressure sensor 8.
  • the pressure sensor 8 is suitable for measuring and evaluating the pressure resulting in the tub 2 due to a water column.
  • the in Fig. 1 shown washing machine 1 is set up, one of in Fig. 2 and 3 and in the accompanying description below, to perform water supply controls.
  • the time periods on the time axis t are in the Fig. 2 and 3 are only indicated symbolically. The time course is shown in each case schematically.
  • the pressure in the tub is measured.
  • each Umwutschleudergang is terminated when a measured pressure in the tub is above a pressure limit p-limit.
  • each Umwutschleudergang is terminated when a measured pressure in the tub is above a pressure limit p-limit or when a maximum Umflutschleuder-drum speed n 2 of the laundry drum is reached.
  • the refilling of portions of water in the reversing phases explained below increases the moisture content of the laundry during the water supply control.
  • Fig. 2 shows a time course of a water supply control. It is a portion of water tanked and the first Umflutschleudergang A 1 is started.
  • the circulating device is activated in the circulating centrifugal passage A 1 .
  • the laundry drum is rotated at a minimum tumble drum speed n 1 which is above the apply speed.
  • the tumbler drum speed is increased in stages until a maximum tumbler tumbler speed n 2 is reached. Meanwhile, the pressure in the tub is measured. Since the pressure limit p_limit has not yet been reached when n 2 is reached, the tumbler drum speed is set to the minimum tumbler tumbler speed n 1 , an amount of water is charged, and the speed is increased stepwise again.
  • the flooding spin Upon reaching the pressure limit p-limit, the flooding spin is terminated, and a reversing phase B 1 is performed.
  • the flooding device In reversing phase B 1 , the flooding device is deactivated and the laundry drum is rotated at a drum speed below the application speed or not rotated. The laundry can redistribute in the laundry drum.
  • the reversing phase B 1 After lapse of a predetermined period of time, the reversing phase B 1 is ended, and a circulating centrifugal A 2 is started.
  • the flooding device is activated and tumbler drum speed of the laundry drum is incrementally increased from the minimum tumbler tumbler speed n 1 until the maximum tumbler tumbler speed n 2 is reached.
  • a Reversierphase B 2 is carried out according to the reversing phase B 1 described above.
  • the reversing phase B 2 is terminated and a circulating centrifugal passage A 3 is started.
  • the flooding device is activated and the flooding tumble drum rotation speed is gradually increased from the minimum floater-drum rotation speed n 1 .
  • the measured pressure value reaches the pressure limit p-limit and the circulating-impeller A 3 is terminated.
  • the desired humidity F is reached and the water supply control is terminated.
  • the washing process for washing the laundry can be started.
  • Fig. 3 shows a time course of another water supply control. It is a portion of water tanked and the first Umflutschleudergang A 1 is started.
  • the flooding device is activated in the flooding spin A 1 , and the laundry drum is rotated at a minimum rollout drum speed n 1 , which is above the application speed.
  • the tumble drum speed is gradually increased.
  • n 2 of the Umwutschleudergang A 1 is terminated.
  • the pressure in the tub at this time is below the pressure limit p_grenz.
  • the reversing phase B 1 is performed, in which the circulating device is deactivated and the laundry drum is rotated at a drum speed below the application speed or not rotated, so that the laundry can redistribute in the laundry drum.
  • the reversing phase B 1 is terminated, and the circulating centrifugal A 2 is started.
  • the flooding device is activated, and tumble drum rotation speed of the laundry drum is gradually increased from the minimum tumble drum rotation speed n 1 . Even before the tumble drum rotation speed has been increased to the maximum tumble drum rotation speed n 2 , the pressure in the tub reaches the pressure limit p_limit, and the flooding cycle A 2 is terminated.
  • the reversing phase B 2 is carried out in accordance with the reversing phase B 1 described above.
  • the reversing phase B 2 is ended, and a circulating centrifugal passage A 3 is started.
  • the flooding spin A 3 the flooding device is activated and the rollout drum speed from the minimum Circulatory centrifugal drum speed n 1 gradually increased.
  • the maximum circulating tumble drum speed n 2 is reached before the pressure in the tub reaches p-limit.
  • the Umwutschleudergang A 3 is terminated upon reaching the maximum Umflutschleuder-drum speed n 2 , and a Reversierphase B 3 is carried out according to the Reversierphase B 1 .
  • the desired humidity F is reached and the water supply control is terminated.
  • the washing process for washing the laundry can be started.

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

Claims (7)

  1. Commande d'arrivée d'eau pour le lavage humide avec une machine à laver automatique (1) comprenant une cuve de lessivage (2), un tambour à linge (3) et un dispositif de circulation (4), dans lequel du liquide de lavage, dans un processus de lavage, est complètement lié au linge (5) se trouvant dans le tambour à linge (3), plusieurs cycles d'essorage à circulation (A1, A2, A3) étant effectués, dans lesquels le liquide de lavage est enlevé du linge (5) et pulvérisé de nouveau dans le linge (5), et une phase d'inversion (B1, B2, B3) est réalisée respectivement entre les cycles d'essorage à circulation (A1, A2, A3), et une quantité d'eau de base est commandée en quantité avant le premier cycle d'essorage à circulation (A1) et est acheminée jusqu'à un niveau de liquide de lavage prédéfini dans la cuve de lessivage (2), et ensuite une portion d'eau est rajoutée dans chaque phase d'inversion (B1, B2, B3) jusqu'à l'obtention d'une humidité souhaitée du linge (5),
    une pression étant mesurée dans la cuve de lessivage (2) au moins pendant les cycles d'essorage à circulation (A1, A2, A3), à partir de laquelle le niveau de liquide de lavage dans la cuve de lessivage est déterminé, caractérisée en ce que chaque cycle d'essorage à circulation (A1, A2, A3) est lancé au moyen de la rotation du tambour à linge (3) à une vitesse de rotation de tambour d'essorage à circulation minimale (n1) qui est égale ou supérieure à une vitesse de rotation d'application du linge contre le tambour à laquelle le linge (5) est au moins partiellement adjacent à une enveloppe du tambour à linge (3), et qui est inférieure à une vitesse de rotation de tambour critique, et la vitesse de rotation de tambour d'essorage à circulation est augmentée de façon continue ou par étapes pendant le processus d'essorage à circulation jusqu'à une vitesse de rotation de tambour d'essorage à circulation maximale (n2), et chaque cycle d'essorage à circulation (A1, A2, A3) est terminé quand la pression mesurée est égale ou supérieure à une valeur limite de pression prédéfinie.
  2. Commande d'arrivée d'eau selon la revendication 1, caractérisée en ce que le dispositif de circulation (4) est désactivé dans la phase d'inversion (B1, B2, B3).
  3. Commande d'arrivée d'eau selon la revendication 1, caractérisée en ce que, lorsque la vitesse de rotation d'essorage à circulation maximale (n2) est atteinte, le tambour à linge (3) est réglé à la vitesse de rotation d'essorage à circulation minimale (n1), et la vitesse de rotation d'essorage à circulation minimale (n1) est de nouveau augmentée de façon continue ou par étapes jusqu'à l'obtention de la vitesse de rotation d'essorage à circulation maximale (n2), de l'eau pouvant être acheminée après chaque abaissement à la vitesse de rotation minimale et le processus pouvant être répété jusqu'à ce que la pression mesurée soit égale ou supérieure à une valeur limite de pression prédéfinie.
  4. Commande d'arrivée d'eau selon la revendication 1, caractérisée en ce que le cycle d'essorage à circulation (A1, A2, A3) est terminé lors de l'obtention de la vitesse de rotation d'essorage à circulation maximale (n2).
  5. Commande d'arrivée d'eau selon l'une des revendications précédentes, caractérisée en ce que, avant le lancement du premier cycle d'essorage à circulation (A1), une quantité de chargement du linge (5) dans le tambour à linge (3) est déterminée, et la portion d'eau est sélectionnée en fonction de la qualité de chargement.
  6. Commande d'arrivée d'eau selon l'une des revendications précédentes, caractérisée en ce que plusieurs phases d'inversion (B1, B2, B3) sont effectuées, et les portions d'eau à rajouter dans les plusieurs phases d'inversion (B1, B2, B3) respectives sont réglées de telle sorte que la portion d'eau diminue quand le nombre de phases d'inversion (B1, B2, B3) augmente.
  7. Commande d'arrivée d'eau selon l'une des revendications précédentes 1 à 6, caractérisée en ce que la vitesse de rotation de tambour d'essorage à circulation minimale (n1) se situe dans la plage de 80 à 150 tr/mn-1, et la vitesse de rotation de tambour d'essorage à circulation maximale (n2) se situe dans la plage de 300 à 600 tr/min-1.
EP15160854.4A 2014-04-08 2015-03-25 Commande d'amenée d'eau Active EP2930262B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014104962.4A DE102014104962A1 (de) 2014-04-08 2014-04-08 Wasserzulaufsteuerung und Waschvollautomat

Publications (2)

Publication Number Publication Date
EP2930262A1 EP2930262A1 (fr) 2015-10-14
EP2930262B1 true EP2930262B1 (fr) 2017-01-25

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EP15160854.4A Active EP2930262B1 (fr) 2014-04-08 2015-03-25 Commande d'amenée d'eau

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DE (1) DE102014104962A1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104294530B (zh) * 2013-06-28 2018-06-08 海尔集团技术研发中心 洗衣控制方法和洗衣机
DE102015108951A1 (de) * 2015-06-08 2016-12-08 Miele & Cie. Kg Wasserzulaufsteuerung für einen Waschautomaten
DE102015212738A1 (de) * 2015-07-08 2017-01-12 BSH Hausgeräte GmbH Wäschepflegegerät und Wäschepflegeverfahren
DE102016106613A1 (de) 2016-04-11 2017-10-12 Miele & Cie. Kg Verfahren zum Steuern eines Zulaufs von Wasser für eine Waschmaschine, Steuervorrichtung zum Ausführen des Verfahrens und Waschmaschine
DE102016206047A1 (de) * 2016-04-12 2017-10-12 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Steuerung
DE102016212489A1 (de) * 2016-07-08 2018-01-11 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Steuerung
DE102016120659A1 (de) * 2016-10-28 2018-05-03 Miele & Cie. Kg Wasserzulaufsteuerung
DE102017103167A1 (de) * 2017-02-16 2018-08-16 Miele & Cie. Kg Wasserzulaufsteuerung und Waschautomat
EP4137630A1 (fr) * 2018-02-22 2023-02-22 LG Electronics Inc. Appareil de lavage et son procédé de commande
KR102647359B1 (ko) 2018-10-16 2024-03-14 엘지전자 주식회사 세탁장치 및 이의 제어방법
KR20200042820A (ko) 2018-10-16 2020-04-24 엘지전자 주식회사 세탁장치 및 이의 제어방법
DE102019213014A1 (de) 2019-08-29 2021-03-04 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Steuerung
DE102019213015A1 (de) * 2019-08-29 2021-03-04 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Steuerung
DE102019213017A1 (de) * 2019-08-29 2021-03-04 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Steuerung
DE102021202228A1 (de) 2021-03-09 2022-09-15 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Steuerung
DE102021205430A1 (de) 2021-05-28 2022-12-01 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Steuerung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050014500A (ko) * 2003-07-31 2005-02-07 삼성전자주식회사 드럼 세탁기 및 그 제어방법
ATE352654T1 (de) * 2004-11-23 2007-02-15 Electrolux Home Prod Corp Flottenumwälzende haushaltswasmaschine mit automatischer bestimmung des wäschegewichts, sowie zugehöriges betriebsverfahren.
DE102008046465A1 (de) * 2008-09-09 2010-03-11 Miele & Cie. Kg Verfahren zum Betreiben einer Waschmaschine und Waschmaschine
EP2348151B1 (fr) * 2010-01-25 2017-07-05 Miele & Cie. KG Procédé de fonctionnement d'un lave-linge avec un dispositif d'écoulement
EP2246469B1 (fr) * 2010-02-16 2012-07-11 V-Zug AG Procédé de functionnement d'un lave-linge et lave-linge doté d'une pompe à circulation et d'une phase d'essorage

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DE102014104962A1 (de) 2015-10-08
EP2930262A1 (fr) 2015-10-14

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