EP2381029B2 - Procédé de fonctionnement d'un lave-linge - Google Patents

Procédé de fonctionnement d'un lave-linge Download PDF

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Publication number
EP2381029B2
EP2381029B2 EP10401061.6A EP10401061A EP2381029B2 EP 2381029 B2 EP2381029 B2 EP 2381029B2 EP 10401061 A EP10401061 A EP 10401061A EP 2381029 B2 EP2381029 B2 EP 2381029B2
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EP
European Patent Office
Prior art keywords
water
value
suds container
drum
tub
Prior art date
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Application number
EP10401061.6A
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German (de)
English (en)
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EP2381029A1 (fr
EP2381029B1 (fr
Inventor
Dirk Sieding
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
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Miele und Cie KG
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Application filed by Miele und Cie KG filed Critical Miele und Cie KG
Priority to ES10401061T priority Critical patent/ES2387648T5/es
Priority to EP10401061.6A priority patent/EP2381029B2/fr
Priority to PL10401061T priority patent/PL2381029T5/pl
Publication of EP2381029A1 publication Critical patent/EP2381029A1/fr
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Publication of EP2381029B1 publication Critical patent/EP2381029B1/fr
Publication of EP2381029B2 publication Critical patent/EP2381029B2/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
    • 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
    • D06F58/36—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F58/44—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry of conditioning or finishing, e.g. for smoothing or removing creases
    • 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
    • D06F2103/16—Washing liquid temperature
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/08—Draining of washing liquids
    • 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

Definitions

  • the invention relates to a method for operating a washing machine with a tub for receiving washing liquid for treating laundry and a heater, the method comprising a washing phase, a rinsing phase and a spin phase with a subsequent steaming phase, with water in the tubing for the steaming phase is admitted to a predetermined limit value G, which the drum does not reach, but can be heated by the heater.
  • the laundry is moved in the rotating drum, which causes the laundry to be wetted or moistened with the washing liquid and the washing mechanism.
  • the laundry is usually dewatered by a spin phase in which the drum is rotated at a speed at which the laundry rests against the drum shell and the water is forced out of the laundry by centrifugal action.
  • the items of laundry are heavily stressed, so that creases occur.
  • it is from the EP 1 275 767 A1 known to add steam to the laundry after spinning. The steam supply loosens and removes creases from the laundry, making ironing easier.
  • the DE 10 2007 041 906 A1 discloses a washing machine that provides a steaming function by means of the heating element in the tub.
  • a steaming function by means of the heating element in the tub.
  • the heating element is covered with water while the steam is being generated, but the water level must not be so high that the drum or the laundry in the drum is directly exposed to and moistened with the water.
  • the water level is measured or recorded in the known manner by means of a pressure sensor.
  • the invention is therefore based on the object of providing a method in which an exact metering of the amount of water admitted into the tub is provided for steaming in a simple manner.
  • the main advantage of the method according to the invention is that with the sensors already present in the washing machine, the amount of water in the tub is determined very precisely and with fine-grain measurements. As a result, a small amount of water, in contrast to the amount of water required for a washing phase, can be let into the tub, as is necessary for the steam phase.
  • the water inlet is controlled by means of an inlet valve.
  • the inlet valve can be controlled very easily and precisely by means of a control device.
  • step b) the values of the pressure sensor are additionally used for the detection of pressure fluctuations, the drum being moved.
  • an additionally recorded value of a water meter is used in step b) for the second plausibility check.
  • step b) the specified value for the temperature sensor has an increase value in the range from 3K to 5K after the water inlet, the value of the pressure sensor a value of 20 mm Ws and the value for the recorded pressure fluctuations is approximately 3 mm Ws to 5 mm Ws. The pressure fluctuation is recorded while the drum is rotating.
  • step a) at a pressure value of less than 7 mm water column, step a) is ended and the drain device is activated, step a) then being repeated at least once in order to set an initial value for the water level in the tub detect. It is very easy to record these limit values, so that no expensive precision components are required in the washing machine.
  • a drain device for emptying the tub is activated when the amount of water taken in exceeds the specified amount of water by a threshold value, steps a) and b) then being repeated.
  • a threshold value a threshold value used here, but this only occurs in the case of rare, temporary malfunctions of the sensors or misinterpretations of the recorded values.
  • a washing machine 1 with a tub 2 is shown in a purely schematic representation.
  • the position and direction details relate to the operational set-up position of the washing machine 1.
  • Inside the tub 2 is a rotatably mounted drum 3 driven by an electric motor 13, which moves the laundry items 8 in the tub 2.
  • the drum 3 is made of stainless steel and is provided with a large number of openings for the flow.
  • the housing 4 has a loading opening 9 through which the The interior of the drum 3 can be reached through the sealing collar 6.
  • the loading opening 9 can be closed by means of a door 5.
  • a heater 7 is arranged, which can heat the washing liquid in the tub.
  • an inlet valve 15 is sketched, which provides the inlet of the water from the supply network.
  • the water is passed through the dispenser box 11 via the connecting pipe 14 into the tub 2, with detergent introduced in the dispenser drawer 11 being flushed into the tub 2 with it.
  • a drainage device 12 is arranged below the tub 2, which leads the used washing liquid or the rinsing water out of the tub 2 to the drain line 12c, which as a rule opens into a sewer.
  • the control device 18 controls the inlet valve 15, the activity of the drain device 12, the drive motor 13, which is energized via the power unit or a frequency converter 16, and the heating element 7.
  • Fig. 1 it is also shown that the level of the washing liquid 19 is just below the drum 3, so that it does not come into contact with water. It can also be seen that at level G the heating element 7 is completely under water, so that steam can now be generated with this.
  • a pressure sensor 17b detects the water level and pressure fluctuations when the drum is moving. The water temperature in the tub 3 is recorded with the temperature sensor and the amount of water taken in is recorded with the water meter 17c.
  • the inlet valve 15 is controlled by the control device 18 as a function of these detected values.
  • a complete sequence of a wash program WP is shown in a diagram as an example.
  • the individual phases within the washing program WP are shown on the time axis t.
  • the program sequence WP shown here comprises a washing phase Wa, a rinsing phase Sp and a spin phase Sc.
  • the water inlet 15 and the outlet 12 are controlled accordingly.
  • the heating element 7 is also controlled accordingly in order to heat the washing liquid 19 to the predetermined temperature.
  • the steam phase Da which follows the spin phase Sc
  • steam is generated in the tub 2, which causes the laundry items 8 to crease.
  • water is let into the tub up to a predetermined limit value G, which does not reach the drum but can be heated by the heating element (7).
  • Fig. 3 Sketched as a state diagram the phase Da, in which the steam for treating the laundry 8 is generated and fed into the treatment room in the interior of the tub 2 and the drum 3 of the laundry.
  • state S1 it is checked whether there is no more residual water in the tub 2.
  • a plausibility check is carried out on the basis of the detected sensor signals of the pressure sensor 17b (detected pressure), so that on the basis of this check it can be determined clearly and reliably whether there is still an inadmissible amount or too little residual water in the tub 2. If the plausibility check shows that there is a residual amount of water in the tub that does not correspond to the initial value, the status change to state S4, in which the drain device 12, such as the drain valve or drain pump 12a, is activated to empty the tub 2 and then to to bring the initial state.
  • the drain device 12 such as the drain valve or drain pump 12a
  • state S1 After a preset time, for example 10 seconds to 50 seconds, the state changes to state S1, in which it is checked again whether the amount of water in the tub 2 corresponds to the initial state. If it is determined that the tub 2 is in the initial state, a change is made to state S2. In state S2, water is let into the tub 2, in which the control device 18 activates the inlet valve 15 and thus opens it so that water reaches the tub 2 via the feed lines. In this case, the signals of the pressure sensor 17b, the water quantity counter 17c and the temperature sensor 17a are recorded continuously or in a clocked manner and subjected to a plausibility check.
  • the specified water level is set very precisely and finely granular in terms of measurement technology, the water level being selected so that the heating element 7 is completely under water, but the drum 3 is not reached by the water. If, due to unpredictable errors, the water level exceeds the specified one, the system changes to state S4.
  • the drain device 12 is activated in order to empty the tub and the procedure begins anew. If it is determined that the water level has reached the specified value, a change is made to state S3. In this state, the heating element 7 is activated, so that steam is generated, with which the laundry items 8 in the interior of the drum are acted upon.
  • the drum can be rotated in a reversing or non-reversing manner, so that a loose movement of the laundry items 8 is caused.
  • the above-mentioned water level control can also be used for other phases of the washing process, for example for supplying fresh water for the washing phase Wa or for the rinsing phase Sp.

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

Claims (8)

  1. Procédé de fonctionnement d'une machine à laver (1) avec une cuve de lessivage (2) destinée à recevoir du liquide de lavage (19) pour le traitement du linge (8) et avec un élément chauffant (7), le procédé comprenant une phase de lavage (Wa), une phase de rinçage (Sp) et une phase d'essorage (Sc) suivie d'une phase de vaporisation (Da), de l'eau étant, pour la phase de vaporisation (Da), admise dans la cuve de lessivage jusqu'à une valeur limite (G) paramétrée, cette eau n'atteignant pas le tambour mais pouvant être chauffée par l'élément chauffant (7),
    avec les étapes suivantes
    - a) contrôle indiquant si la cuve de lessivage (2) présente un état initial, l'état initial intervenant à l'aide d'un premier contrôle de vraisemblance de valeurs détectées du capteur de pression (17b), l'état initial étant défini par une cuve de lessivage (2) au moins quasiment vidée, ou une quantité d'eau résiduelle qui regagne la cuve de lessivage à travers les conduites d'évacuation après un pompage préalable dans le cas d'un programme de lavage écoulé précédemment, et après
    - b) admission d'une quantité d'eau prédéfinie dans la cuve de lessivage (2), de sorte que l'élément chauffant (7) se trouve dans l'eau et le tambour (3) n'est pas touché par l'eau, la quantité d'eau admise étant réglée à l'aide d'un deuxième contrôle de vraisemblance à partir d'un calcul à partir d'une valeur détectée du capteur de pression (17b) et d'une valeur détectée du capteur de température (17a), le niveau d'eau étant réglé en fonction du résultat du deuxième contrôle de vraisemblance de sorte que l'élément chauffant (7) est situé entièrement sous l'eau mais que le tambour (3) n'est pas touché par l'eau, et après
    - c) production de vapeur par l'activation de l'élément chauffant (7).
  2. Procédé selon la revendication 1,
    caractérisé en ce
    que l'entrée d'eau est commandée au moyen d'une vanne d'admission (15).
  3. Procédé selon la revendication 1 ou 2,
    caractérisé en ce
    que, dans l'étape b), les valeurs du capteur de pression (17b) sont utilisées en plus pour la détection de fluctuations de pression, le tambour étant mis en mouvement.
  4. Procédé selon la revendication 1, 2 ou 3,
    caractérisé en ce
    que, dans l'étape b), une valeur détectée d'un compteur de quantité d'eau (17c) est en plus utilisée pour le deuxième contrôle de vraisemblance.
  5. Procédé selon la revendication 2,
    caractérisé en ce
    que l'étape b) est divisée en au moins deux étapes partielles, dans l'étape partielle
    - b1) la quantité d'eau effective dans la cuve de lessivage étant, déterminée au moyen du contrôle de vraisemblance, et dans l'étape partielle
    - b2) l'ouverture de la vanne d'admission (15) pour l'admission d'une quantité partielle prédéfinie dans la cuve de lessivage (2) s'effectuant si la quantité d'eau déterminée est plus faible que la quantité d'eau prédéfinie, et
    - répétition des étapes partielles b1) et b2) jusqu'à ce que la quantité d'eau déterminée dans la cuve de lessivage (2) soit égale ou supérieure à la quantité d'eau prédéfinie.
  6. Procédé selon la revendication 3,
    caractérisé en ce
    que, dans l'étape b), la valeur paramétrée pour le capteur de température (17a) est une valeur de montée dans la plage de 3K à 5K après l'entrée d'eau, la valeur du capteur de pression (17b) est une valeur dans la plage de 15 à 30 mm CE, et la valeur des fluctuations de pression détectées est dans la plage de 3 mm CE à 5 m CE.
  7. Procédé selon la revendication 1,
    caractérisé en ce
    que, dans l'étape a), pour une valeur de pression inférieure à 7 mm CE quand le tambour (3) tourne, l'étape a) est terminée et l'équipement d'évacuation (12) est activé, l'étape a) étant ensuite répétée au moins une fois afin de détecter une valeur initiale du niveau d'eau dans la cuve de lessivage (2).
  8. Procédé selon la revendication 1, 2 ou 3,
    caractérisé en ce
    que, après l'achèvement de l'étape b), l'équipement d'évacuation (12) est activé pour le vidage de la cuve de lessivage (2) quand le niveau d'eau dans la cuve de lessivage (2) dépasse le niveau d'eau paramétré, les étapes a) et b) étant ensuite répétées.
EP10401061.6A 2010-04-26 2010-04-26 Procédé de fonctionnement d'un lave-linge Active EP2381029B2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ES10401061T ES2387648T5 (es) 2010-04-26 2010-04-26 Procedimiento de funcionamiento de una máquina lavadora
EP10401061.6A EP2381029B2 (fr) 2010-04-26 2010-04-26 Procédé de fonctionnement d'un lave-linge
PL10401061T PL2381029T5 (pl) 2010-04-26 2010-04-26 Sposób eksploatacji pralki

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10401061.6A EP2381029B2 (fr) 2010-04-26 2010-04-26 Procédé de fonctionnement d'un lave-linge

Publications (3)

Publication Number Publication Date
EP2381029A1 EP2381029A1 (fr) 2011-10-26
EP2381029B1 EP2381029B1 (fr) 2012-07-04
EP2381029B2 true EP2381029B2 (fr) 2020-09-02

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EP (1) EP2381029B2 (fr)
ES (1) ES2387648T5 (fr)
PL (1) PL2381029T5 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013208249A (ja) * 2012-03-30 2013-10-10 Panasonic Corp 衣類処理装置
EP2740827B1 (fr) 2012-12-04 2016-04-20 Miele & Cie. KG Lave-linge doté d'un générateur vapeur et son procédé d'utilisation
DE102013100863B4 (de) 2013-01-29 2015-02-12 Miele & Cie. Kg Verfahren zum Betreiben einer Waschmaschine
DE102013100872B3 (de) * 2013-01-29 2014-02-27 Miele & Cie. Kg Waschmaschine
DE102014105026A1 (de) * 2014-04-09 2015-10-15 Miele & Cie. Kg Verfahren zum Betreiben einer Waschmaschine und Waschmaschine
CN109576944A (zh) * 2017-09-28 2019-04-05 无锡小天鹅股份有限公司 衣物处理装置及其控制方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1485100A1 (de) † 1965-06-29 1970-01-15 Reichert Dipl Ing Werner Vorrichtung zum Steuern eines Waschautomaten od.dgl.
JPH0323493A (ja) † 1989-06-20 1991-01-31 Pioneer Electron Corp 液晶表示装置
DE10014871A1 (de) † 2000-03-24 2001-10-11 Miele & Cie Verfahren zur Sensierung von Restwasser bei einer programmgesteuerten Geschirrspülmaschine oder Waschmaschine, sowie Spül- oder Waschmaschine zur Durchführung des Verfahrens
EP1275767A1 (fr) † 2001-07-10 2003-01-15 V-Zug AG Sèche-linge ou machine à laver automatique avec dispositif de vaporisation
US20050092035A1 (en) † 2003-11-04 2005-05-05 Shin Soo H. Washing apparatus and control method thereof
EP1578143A2 (fr) † 2004-03-16 2005-09-21 Nilko Metalurgia, Ltda. Améliorations apportées à une armoire abritant un équipement de télécommunications
WO2010035080A1 (fr) † 2008-09-23 2010-04-01 Indesit Company S.P.A. Machine à laver, en particulier un lave-linge, un lave-linge / sèche-linge ou un lave-vaisselle, équipée d’un dispositif de détection de la température de la resistance électrique utilisée pour réchauffer le liquide de lavage

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8291731B2 (en) * 2005-05-31 2012-10-23 Lg Electronics Inc. Washing machine generating and using the steam
DE102007041906B4 (de) * 2007-09-04 2017-01-19 BSH Hausgeräte GmbH Verfahren zum Einlassen von Wasser in eine Wäschebehandlungsmaschine sowie hierzu geeignete Wäschebehandlungsmaschine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1485100A1 (de) † 1965-06-29 1970-01-15 Reichert Dipl Ing Werner Vorrichtung zum Steuern eines Waschautomaten od.dgl.
JPH0323493A (ja) † 1989-06-20 1991-01-31 Pioneer Electron Corp 液晶表示装置
DE10014871A1 (de) † 2000-03-24 2001-10-11 Miele & Cie Verfahren zur Sensierung von Restwasser bei einer programmgesteuerten Geschirrspülmaschine oder Waschmaschine, sowie Spül- oder Waschmaschine zur Durchführung des Verfahrens
EP1275767A1 (fr) † 2001-07-10 2003-01-15 V-Zug AG Sèche-linge ou machine à laver automatique avec dispositif de vaporisation
US20050092035A1 (en) † 2003-11-04 2005-05-05 Shin Soo H. Washing apparatus and control method thereof
EP1578143A2 (fr) † 2004-03-16 2005-09-21 Nilko Metalurgia, Ltda. Améliorations apportées à une armoire abritant un équipement de télécommunications
WO2010035080A1 (fr) † 2008-09-23 2010-04-01 Indesit Company S.P.A. Machine à laver, en particulier un lave-linge, un lave-linge / sèche-linge ou un lave-vaisselle, équipée d’un dispositif de détection de la température de la resistance électrique utilisée pour réchauffer le liquide de lavage

Also Published As

Publication number Publication date
PL2381029T5 (pl) 2021-07-05
ES2387648T3 (es) 2012-09-27
ES2387648T5 (es) 2021-04-09
EP2381029A1 (fr) 2011-10-26
PL2381029T3 (pl) 2012-10-31
EP2381029B1 (fr) 2012-07-04

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