EP2579763B1 - Machine à laver avec un dispositif d'adoucissement d'eau - Google Patents

Machine à laver avec un dispositif d'adoucissement d'eau Download PDF

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Publication number
EP2579763B1
EP2579763B1 EP11725905.1A EP11725905A EP2579763B1 EP 2579763 B1 EP2579763 B1 EP 2579763B1 EP 11725905 A EP11725905 A EP 11725905A EP 2579763 B1 EP2579763 B1 EP 2579763B1
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EP
European Patent Office
Prior art keywords
salt
valve
water
ion exchanger
amount
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
EP11725905.1A
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German (de)
English (en)
Other versions
EP2579763A1 (fr
Inventor
Kagan Kurtkaya
Ilkan Erdem
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.)
Arcelik AS
Original Assignee
Arcelik AS
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Publication date
Application filed by Arcelik AS filed Critical Arcelik AS
Priority to PL11725905T priority Critical patent/PL2579763T3/pl
Publication of EP2579763A1 publication Critical patent/EP2579763A1/fr
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Publication of EP2579763B1 publication Critical patent/EP2579763B1/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 
    • D06F39/007—Arrangements of water softeners
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4229—Water softening arrangements

Definitions

  • the present invention relates to a washing machine comprising a water softening device.
  • water softening devices are used for decreasing the hardness of the wash water and for providing an effective washing.
  • the water softening device comprises an ion exchanger and a salt container that provides the regeneration process to be performed by keeping the resin at the ion exchanger in salty water in the regeneration process.
  • the water used in washing is passed over the ion exchanger and is delivered to the tub to be included in the washing process.
  • the ion exchanger becomes unable to soften the water in the course of time therefore the regeneration process is performed by keeping it in the salt solution taken from the salt container at certain intervals.
  • the amount of unsaturated salt in the salt container falls below the critical level after a certain number of regeneration processes.
  • the amount of unsaturated salt in the salt container is detected by a sensor disposed on the salt container.
  • the user is warned when the amount of unsaturated salt in the salt container falls below the critical level.
  • the user adds salt into the container with opening the door of the salt container after receiving the warning about decrease or depletion of the salt amount.
  • the diluted salt solution flows out of the salt container until the pressure balance is maintained.
  • the salt water solution spills out being replaced with the salt poured into the container.
  • Document EP-A2-2044876 discloses a washing machine comprising a control unit, a body, a tub disposed inside the body, wherein the washing operation is performed, a pump providing the water in the tub to be discharged, an ion exchanger that decreases the hardness of water passing thereover, a salt container providing the regeneration process to be performed by the resin inside the ion exchanger being kept in salt water, a soft water line that extends between the ion exchanger and the tub, providing the water passed from the ion exchanger to be delivered to the tub, a first valve that delivers water received from the mains directly to the ion exchanger, a second valve providing water received from the mains to be delivered to the salt container, a regeneration line situated between the salt container and the ion exchanger and a regeneration valve disposed on the regeneration line.
  • German Patent Document No. DE4036046 an embodiment is described wherein overfilling of the salt chamber used for softening water in washing machines and dishwashers is prevented.
  • the aim of the present invention is the realization of a washing machine wherein spilling out of salt water during adding salt to the salt container is prevented.
  • the washing machine realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof, comprises an ion exchanger that decreases the hardness of water passing thereover, and a salt container providing the resin in the ion exchanger to be regenerated by being kept in salt water.
  • the first valve connected to the mains is directly connected to the ion exchanger.
  • the water received by means of the first valve is delivered to the tub by the soft water line after being softened by being passed through the ion exchanger.
  • the second valve connected to the mains and the regeneration valve disposed on the regeneration line extending between the salt container and the ion exchanger are opened together during regeneration.
  • the washing machine of the present invention comprises a control unit that provides the regeneration valve to be opened and the second valve to be kept closed when the user is warned about adding salt to the salt container.
  • the regeneration valve is opened, the salt water solution in the salt container is provided to be delivered to the ion exchanger.
  • the second valve is kept closed, the salt container is provided not to be filled with mains water again, in other words the salt container is provided to be emptied.
  • the risk of spilling of salt water outside while the user adds salt to the salt container is eliminated. Accordingly, the salt water solution that has damaging properties to the body surface is prevented from contacting the surface of the body. Furthermore, the undesired situations such as dirtiness etc. by the salt water spilling out are prevented.
  • the control unit when the amount of salt measured by the sensor is less than the critical level, the control unit opens the regeneration valve while keeping the second valve closed at the end of the currently running program.
  • the salt container is provided to be emptied at the end of the running program when the user is warned for adding salt to the salt container. Consequently, the salt container is kept ready for adding salt without the problem of overspilling.
  • the salt container is provided to be discharged prior to adding salt into the salt container thereby the probable overspilling problem that can occur during adding of salt is prevented.
  • the body is provided to be protected by preventing contact of salt water with the surface of the body.
  • the washing machine (1) comprises a body (2), a tub (3) disposed inside the body (2), wherein the washing operation is performed, a pump (4) providing the discharge of the water in the tub (3), an ion exchanger (5) that decreases the hardness of water passing thereover, a salt container (6) providing the regeneration process to be performed by the resin inside the ion exchanger (5) being kept in salt water, a sensor (7) that measures the amount of salt in the salt container (6), a soft water line (8) that extends between the ion exchanger (5) and the tub (3), providing the water passed over the ion exchanger (5) to be delivered to the tub (3), a first valve (9) that delivers water received from the mains directly to the ion exchanger (5), a second valve (10) providing water received from the mains to be delivered to the salt container (6), a regeneration line (11) situated between the salt container (6) and the ion exchanger (5) and a regeneration valve (12) disposed on the regeneration line (11).
  • the washing machine (1) at the start of the washing process, some portion of the water received from the mains is received through the detergent dispenser and the cleaning agents in the detergent dispenser are delivered to the tub (3) by being swept with the water. Another portion of the water used in the washing process is received from the mains by the first valve (9) and delivered to the ion exchanger (5). The hardness degree is decreased by holding the magnesium and calcium ions in the water passing over the ion exchanger (5). The softened water is delivered to the tub (3) by means of the soft water line (8). The ions in the water remain on the resin inside the ion exchanger (5).
  • the resin By means of the regeneration process performed when the resin reaches its total ion holding capacity, the resin is provided to be regenerated so as to implement the water softening function again.
  • the second valve (10) and the regeneration valve (12) are opened together. Water received from the mains by the second valve (10) is delivered to the salt container (6) and from here is delivered to the ion exchanger (5) by means of the opened regeneration valve (12) on the regeneration line (11).
  • the regeneration process is completed as the sodium ions in the salt water solution delivered from the salt container (6) to the ion exchanger (5) are replaced by the calcium and magnesium ions remaining on the resin.
  • a certain amount of salt is present in the salt container (6) and the water received into the salt container (6) during the regeneration process replaces the salt water solution. Consequently, the continuation of the salt water solution is provided by the salt inside the salt container (6) dissolving in the mains water.
  • the amount of unsaturated salt in the salt container (6) is measured by the sensor (7) situated on the salt container (6). When a certain number of regeneration processes are performed, the amount of salt in the salt container (6) falls below the critical salt amount.
  • the washing machine (1) of the present invention comprises a control unit (13) that provides the regeneration valve (12) to be opened while keeping the second valve (10) closed when the amount of salt measured by the sensor (7) is less than the critical salt amount predetermined by the producer.
  • the control unit (13) not only controls operation of the valves (9, 10, 12, 15) but also provides the user to be warned for adding salt into the salt container (6) when the amount of salt in the salt container (6) is less than the critical salt amount by means of data received from the sensor (7).
  • the control unit (13) keeps the second valve (10) closed while providing the regeneration valve (12) to be opened before the process of adding salt.
  • almost all of the salt water solution in the salt container (6) is provided to be delivered to the ion exchanger (5).
  • the salt water solution delivered to the ion exchanger (5) is transferred to the tub (3) by means of the soft water line (8) and is discharged from the tub (3) by the pump (4).
  • the second valve (10) is kept closed, receiving water into the salt container (6) from the mains is prevented.
  • the salt container (6) is provided to be almost entirely emptied. Since the salt container (6) is empty, during the process of adding salt into the salt container (6) by the user, overspilling out etc.
  • the control unit (13) when the amount of salt measured is less than the critical salt amount, the control unit (13) provides the regeneration valve (12) to be opened while keeping the second valve (10) closed at the end of the currently running program.
  • the salt container (6) is provided to be emptied at the end of the program whereat the user is warned to add salt into the salt container (6) and the salt container (6) is made available for adding salt.
  • control unit (13) provides the regeneration valve (12) to be opened while keeping the second valve (10) closed at the start of the next work step after detecting that the measured amount of salt is less than the critical salt amount.
  • the control unit (13) provides the regeneration valve (12) to be opened while keeping the second valve (10) closed at the start of the next work step after detecting that the measured amount of salt is less than the critical salt amount.
  • control unit (13) provides the regeneration valve (12) to be opened while keeping the second valve (10) closed as long as the measured amount of salt is less than the critical salt amount.
  • the control unit (13) warns the user about adding salt into the salt container (6) as long as the amount of salt measured by the sensor (7) is less than the critical salt amount.
  • the control unit (13) provides water not to be delivered into the salt container (6) from the mains by keeping the second valve (10) closed during this time.
  • control unit (13) provides the regeneration valve (12) to be kept closed during salt adding process into the salt container (6).
  • the salt that is recently added into the salt container (6) is prevented from passing into the ion exchanger (5) by means of the regeneration valve (12)
  • the washing machine (1) comprises a discharge conduit (14) extending between the salt container (6) and the pump (4), a discharge valve (15) disposed on the discharge conduit (14) and a control unit (13) that provides the discharge valve (15) to be opened when the amount of salt measured by the sensor (7) is less than the critical unsaturated salt amount predetermined by the producer.
  • the control unit (13) provides the salt water solution in the salt container (6) to be delivered to the pump (4) by providing the discharge valve (15) to be opened before the process of adding salt and at the end of the running program.
  • the salt water solution is discharged by means of the pump (4).
  • the salt container (6) is provided to be emptied almost entirely.
  • the washing machine (1) of the present invention occurrence of overspilling during the salt adding process is prevented by providing the salt container (6) to be emptied before adding of salt into the salt container (6). Consequently, the body (2) is protected by preventing contact of salt water on the body (2) surface thereby increasing the expected life of the washing machine (1).

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Claims (6)

  1. Une machine à laver (1) comprenant un corps (2), une cuve (3) disposée dans le corps (2), dans laquelle le processus de lavage est réalisé, une pompe (4) qui effectue l'évacuation de l'eau dans la cuve (3), un échangeur d'ions (5) qui réduit la dureté de l'eau qui passe sur celui-ci, un réservoir de sel (6) qui permet la réalisation du processus de régénération par la résine dans l'échangeur d'ions (5) conservée dans l'eau salée, un capteur (7) qui mesure la quantité du sel dans le réservoir de sel (6), une conduite d'eau douce (8) qui s'étend entre l'échangeur d'ions (5) et la cuve (3) et qui permet à l'eau passant à travers l'échangeur d'ions (5) d'être livrée à la cuve (3), une première soupape (9) qui livre l'eau reçue de l'alimentation en eau directement à l'échangeur d'ions (5), une deuxième soupape (10) qui permet à l'eau reçue de l'alimentation en eau d'être livrée au réservoir de sel (6), une conduite de régénération (11) située entre le réservoir de sel (6) et l'échangeur d'ions (5), et une soupe de régénération (12) disposée sur la conduite de régénération (11),
    caractérisée par une unité de commande (13) qui permet à la soupape de régénération (12) d'être ouverte tout en gardant la deuxième soupape (10) fermée lorsque la quantité du sel mesurée par le capteur (7) est inférieure à la quantité du sel critique prédéterminée par le fabricant.
  2. Une machine à laver (1) selon la Revendication 1, caractérisée par l'unité de commande (13) qui permet à la soupape de régénération (12) d'être ouverte tout en gardant la deuxième soupape (10) fermée à la fin du programme en cours lorsque la quantité du sel mesurée est inférieure à la quantité du sel critique.
  3. Une machine à laver (1) selon la Revendication 1, caractérisée par l'unité de commande (13) qui permet à la soupape de régénération (12) d'être ouverte tout en gardant la deuxième soupape (10) fermée au début de la prochaine étape de programme après avoir détectée que la quantité du sel mesurée est inférieure à la quantité du sel critique.
  4. Une machine à laver (1) selon la Revendication 1, caractérisée par l'unité de commande (13) qui permet à la soupape de régénération (12) d'être ouverte tout en gardant la deuxième soupape (10) fermée aussi longtemps que la quantité du sel mesurée est inférieure à la quantité du sel critique.
  5. Une machine à laver (1) selon l'une quelconque des revendications précédentes, caractérisée par l'échangeur d'ions (5) qui est disposé dans le corps (2) à une position près de la base du corps (2).
  6. Une machine à laver (1) comprenant un corps (2), une cuve (3) disposée dans le corps (2), dans laquelle le processus de lavage est réalisé, une pompe (4) qui effectue l'évacuation de l'eau dans la cuve (3), un échangeur d'ions (5) qui réduit la dureté de l'eau qui passe sur celui-ci, un réservoir de sel (6) qui permet la réalisation du processus de régénération par la résine dans l'échangeur d'ions (5) conservée dans l'eau salée, un capteur (7) qui mesure la quantité du sel dans le réservoir de sel (6), une conduite d'eau douce (8) qui s'étend entre l'échangeur d'ions (5) et la cuve (3) et qui permet à l'eau passant à travers l'échangeur d'ions (5) d'être livrée à la cuve (3), une première soupape (9) qui livre l'eau reçue de l'alimentation en eau directement à l'échangeur d'ions (5), une deuxième soupape (10) qui permet à l'eau reçue de l'alimentation en eau d'être livrée au réservoir de sel (6), une conduite de régénération (11) située entre le réservoir de sel (6) et l'échangeur d'ions (5), et une soupe de régénération (12) disposée sur la conduite de régénération (11),
    caractérisée par une conduite d'évacuation (14) qui s'étend entre le réservoir de sel (6) et la pompe (4), une soupape d'évacuation (15) qui est disposée sur la conduite d'évacuation (14) et une unité de commande (13) qui permet à la soupape d'évacuation (15) d'être ouverte lorsque la quantité du sel mesurée par le capteur (7) est inférieure à la quantité du sel critique prédéterminée par le fabricant.
EP11725905.1A 2010-06-08 2011-06-08 Machine à laver avec un dispositif d'adoucissement d'eau Active EP2579763B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11725905T PL2579763T3 (pl) 2010-06-08 2011-06-08 Pralka zawierająca urządzenie do zmiękczania wody

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201004620 2010-06-08
PCT/EP2011/059433 WO2011154426A1 (fr) 2010-06-08 2011-06-08 Lave-linge comprenant un dispositif adoucisseur d'eau

Publications (2)

Publication Number Publication Date
EP2579763A1 EP2579763A1 (fr) 2013-04-17
EP2579763B1 true EP2579763B1 (fr) 2014-04-30

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EP11725905.1A Active EP2579763B1 (fr) 2010-06-08 2011-06-08 Machine à laver avec un dispositif d'adoucissement d'eau

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EP (1) EP2579763B1 (fr)
PL (1) PL2579763T3 (fr)
WO (1) WO2011154426A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130087858A (ko) * 2012-01-30 2013-08-07 삼성전자주식회사 연수화 장치 및 이를 포함하는 식기세척기
EP2657389A1 (fr) * 2012-04-24 2013-10-30 Electrolux Home Products Corporation N.V. Machine à laver le linge
EP2657388A1 (fr) * 2012-04-24 2013-10-30 Electrolux Home Products Corporation N.V. Machine à laver le linge
EP2657387A1 (fr) 2012-04-24 2013-10-30 Electrolux Home Products Corporation N.V. Machine à laver le linge comprenant un dispositif adoucisseur d'eau
US9970147B2 (en) * 2013-02-06 2018-05-15 Electrolux Appliances Aktiebolag Laundry washing machine
WO2014121821A1 (fr) 2013-02-06 2014-08-14 Electrolux Appliances Aktiebolag Machine à laver le linge
WO2014121820A1 (fr) 2013-02-06 2014-08-14 Electrolux Appliances Aktiebolag Lave-linge

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4036046A1 (de) 1990-11-13 1992-05-14 Licentia Gmbh Salzbehaelter fuer einen wasserenthaerter in geschirrspuel- oder waschmaschinen
DE4446731C2 (de) * 1994-12-24 2003-01-09 Miele & Cie Haushaltgerät, insbesondere programmgesteuerte Geschirrspülmaschine mit einer Wasserenthärtungseinrichtung
IT1279191B1 (it) * 1995-05-09 1997-12-04 Merloni Elettrodomestici Spa Disposizione per la rigenerazione delle resine di addolcimento della acqua in una macchina di lavaggio
ITTO20050805A1 (it) * 2005-11-15 2007-05-16 T & P Spa Sistema per abbattere la durezza dell'acqua di lavaggio in una macchina di lavaggio in particolare una lavastoviglie e relativo metodo
DE102007041312B4 (de) * 2007-08-31 2009-07-02 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Haushaltsgerät mit einer Wasserenthärtungsvorrichtung
ITTO20070694A1 (it) * 2007-10-02 2009-04-03 Bitron Spa Macchina lavastoviglie provvista di un sistema integrato di controllo di quantitativi di acqua

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Publication number Publication date
WO2011154426A1 (fr) 2011-12-15
PL2579763T3 (pl) 2014-09-30
EP2579763A1 (fr) 2013-04-17

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