EP1959045B1 - Washing machine with liquid washing agents dispenser - Google Patents

Washing machine with liquid washing agents dispenser Download PDF

Info

Publication number
EP1959045B1
EP1959045B1 EP07102400A EP07102400A EP1959045B1 EP 1959045 B1 EP1959045 B1 EP 1959045B1 EP 07102400 A EP07102400 A EP 07102400A EP 07102400 A EP07102400 A EP 07102400A EP 1959045 B1 EP1959045 B1 EP 1959045B1
Authority
EP
European Patent Office
Prior art keywords
washing
compartment
washing machine
machine according
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.)
Not-in-force
Application number
EP07102400A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1959045A1 (en
Inventor
Edi Fabbro
Giancarlo Arrigoni
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.)
Electrolux Home Products Corp NV
Original Assignee
Electrolux Home Products Corp NV
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
Priority to DE602007005925T priority Critical patent/DE602007005925D1/de
Priority to EP07102400A priority patent/EP1959045B1/en
Priority to AT07102400T priority patent/ATE464421T1/de
Priority to ES07102400T priority patent/ES2343033T3/es
Priority to PL07102400T priority patent/PL1959045T3/pl
Application filed by Electrolux Home Products Corp NV filed Critical Electrolux Home Products Corp NV
Priority to RU2009134125/12A priority patent/RU2434980C2/ru
Priority to PCT/EP2008/001029 priority patent/WO2008098729A1/en
Publication of EP1959045A1 publication Critical patent/EP1959045A1/en
Application granted granted Critical
Publication of EP1959045B1 publication Critical patent/EP1959045B1/en
Not-in-force legal-status Critical Current
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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/02—Devices for adding soap or other washing agents
    • D06F39/022—Devices for adding soap or other washing agents in a liquid state
    • 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
    • A47L15/44—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants
    • A47L15/4418—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants in the form of liquids

Definitions

  • the present invention relates to a washing machine with a liquid washing agents dispenser.
  • Washing machines of known type are normally provided with a user accessible container having one or more compartments adapted to contain washing agents like detergents, softeners, additives and the like.
  • a washing tub is hydraulically connected with said container in order to receive an amount of powdered or liquid agent for washing or treating articles contained therein.
  • Washing agents poured by a user in the container compartments are generally introduced in the tub by flushing said compartments with water and draining the water and detergent mixture in the tub.
  • This kind of washing agents dispensers is in the form of a movable drawer in a laundry washing machine and in the form of a openable container placed in the inner surface of a cabinet door in a dishwasher.
  • a disadvantage of the known type washing agents dispensers cited above consists in that they have a limited holding capacity for washing agents, therefore the user must remember to refill the container before every washing cycle.
  • washing machines having a washing agents dispenser unit comprising one or more container of relatively high capacity filled with liquid agents.
  • Such containers are connected to the washing tub by means of flexible conduits arranged inside the machine cabinet and provided with a volumetric pump, in particular a peristaltic pump, that leads liquid detergent from containers into the tub.
  • a control unit drives the volumetric pump in such a manner as to supply the tub with metered amounts of liquid agent.
  • Each liquid agent container is connected to a flexible conduit by means of a plug removably associable to the container so as to make very easy to remove the container for substituting or refilling it when it is empty.
  • a drawback of such kind of machines consists in that flexible conduits require periodical maintenance involving cleaning of incrustations formed by washing agents flow and substitution of portions of conduits in contact with the peristaltic pump.
  • a further drawback consists in that disassembling operations of flexible conduits is complicated and must be performed by a technician because they are stored inside the machine cabinet, i.e. in a part which is not accessible to a user.
  • Another drawback of a machine like that disclosed in GB 2 214 524 consists in the uncomfortable position of the containers which are placed at the bottom of the machine cabinet and force the user to lower for substituting the detergent containers.
  • Still another drawback of washing machines cited above is due to design complications like positioning of the washing tub and motor means, and enlarging the machine cabinet size. These complications are caused by the need of creating, inside the machine cabinet, a chamber adapted to store containers.
  • the aim of the present invention is therefore to solve the noted problems and thus providing a washing machine having a liquid washing agents dispenser that allows to perform multiple washing cycles without requiring the user to refill a washing agents container before the start of each washing operation.
  • Another object of the present invention is to provide a washing machine with a maintenance-free liquid washing agents dispenser, the latter avoiding also any risk of incrustation formation.
  • Still another object of the present invention is to provide a liquid washing agents dispenser that can be installed in an already existing washing machine with minimal modifications. Said dispenser being placed in a position that is very easily reachable by a user.
  • Figure 1 shows a washing machine according to the invention embodied as a laundry washing machine
  • Figure 2 shows a plan view of a liquid washing agents dispenser
  • Figure 3 shows a liquid washing agent dispenser according to a sectional view taken along line III-III of figure 2 ;
  • FIG. 4 shows a washing machine according to the invention embodied as a dishwasher
  • a washing machine embodied as a laundry washing machine.
  • the latter comprises a cabinet 22, a washing chamber 1 in which articles to be washed are placed during washing operations, and further comprises a liquid washing agents dispenser 2 which supplies a metered amount of washing agents such as detergents, fabric softeners, bleach and the like, to the chamber 1.
  • the liquid washing agents dispenser 2 which is placed in a conventional detergent distributor drawer 23 in an upper region of the laundry washing machine, is provided with one or more compartments 3 in which a flexible-walled container 4 filled with a washing agent can be housed.
  • Said container 4 known per se, is formed by a sack made of a flexible foil and by a compressible tube 5, preferably of silicone plastics.
  • Each compartment 3 carrying one of the flexible-walled containers 4 is provided with a peristaltic pump 6 comprising a multi-lobed rotating wheel turning inside a housing 7 defined by walls 8 surrounding the rotating wheel (see figure 2 ).
  • Compressible tube 5 is displaced between a portion of walls 8 and the rotating wheel such that when the latter turns, its lobes repetitively compress and release a portion of the tube 5 causing the washing agent contained in the sack 4 to come out.
  • the amount of washing agent supplied by the flexible-walled container 4 may be poured in a further compartment 10 provided in the dispenser 2 in fluid communication with water supplying means 9 which spray water onto the compartment 10 for flushing away agents contained therein.
  • Compartment 10 is also provided for receiving washing agents, for example a detergent powder, poured by a user such that the laundry washing machine can work in a conventional manner, i.e. without the intervention of the pump 6; to this aim further compartments 11 can be provided in the dispenser 2.
  • the washing agent supplied by the container 4 can even be introduced directly inside the washing chamber 1 by means of a manifold 12, collecting liquors from the dispenser 2 and pouring them into the chamber 1.
  • the peristaltic pump 6 is driven by motor means, preferably in the form of a stepper motor 13, controlled by an electronic board 14 that drives and checks all functional parameters of the washing machine, and, in addition, it can also receive input from the user, like the washing program chosen, the preferred washing temperature and so on. Thanks to the pump 6 and to its driving means, it is possible to precisely dose the amount of washing agent to be drained from the container 4 thereby improving the quality of laundry washing cycles and avoiding wasting unnecessary amounts of washing agents.
  • a washing agent level indication means not shown in the figures can be provided in the dispenser 2.
  • Such level indication means can be in made in a plurality of embodiments.
  • the container 4 can be supported by a plate suspended on springs and provided with a switch that activates an alarm when the weight of container 4 lowers below a preset value.
  • the peristaltic pump 6 is powered by a circuit comprising a primary electrical circuit 15 connected to a main alternate voltage power supply 16 (see figure 3 ) which supplies an electrical power to a first ferromagnetic element 17 having a first electric coil 18 wrapped around it.
  • the pump 6 powering circuit further comprises a secondary electrical circuit 19 having a second ferromagnetic element 20 around which a second electrical coil 21 is wrapped.
  • the secondary circuit 19 is contactlessly powered by the primary circuit 15 and such electrical power is supplied to the pump 6.
  • the main alternate voltage power supply 16 comprises an oscillating circuit able to supply the power needed at a pre-set frequency which is said resonating frequency.
  • the pump 6 can be powered in a conventional manner, i.e. by means of electrical wires.
  • the washing machine is embodied as a dishwasher.
  • a liquid washing agents dispenser 202 like that described above with reference to figure 1 to 3 is placed on a door 223 hingedly connected to a cabinet 222 for closing a loading aperture of a washing chamber 201.
  • the dispenser 202 is placed on a surface of the door 223 facing the inner region of the washing chamber 201 such that washing agents can be introduced into the latter during articles washing operations.
  • the dispenser 202 comprises a compartment 203 in which a flexible-walled container 204 filled with a washing agent can be placed.
  • Said container 204 known per se, has the same features described with reference to container 4.
  • a peristaltic pump 206 is further provided in the compartment 203 for repetitively compressing a tube 205 connected to the container 204 in order to extract from the latter a metered amount of washing agent.
  • Said agent can be poured in a further compartment 210 provided in the dispenser 2 in fluid communication with water supplying means, not shown in figure 4 , which spray water onto the compartment 10 for flushing away agents contained therein.
  • washing agent supplied by the container 204 can be introduced directly inside the washing chamber 201.
  • the peristaltic pump 206 is driven by the same means and in the same manner as already described above with reference to figure 1 to 3 .
  • the dispenser 202 can comprise level indication means providing a signal indicative of the amount of washing agent filling the container 204.
  • a lid 224 can be provided for covering the peristaltic pump 206 and the compartment 203 receiving the flexible-walled container 204 during washing operations. If a further compartment 210 is present in the dispenser 202, another lid 225 can be provided for covering the compartment 210. Lids 224 and 225 are preferably pivotally connected to the door 223.
  • a washing machine according to the invention allows the user to perform washing cycles more easily, without taking care of refilling the machine with washing agents every time it has to be used.
  • a washing machine according to the invention helps also to avoid washing articles with erroneous amounts of washing agents causing either the articles not to be properly washed in case the washing agent dose is insufficient or an environment pollution if the washing agent dose is excessive. Maintenance of washing agents dispenser components provided in the proposed washing machine is substantially not necessary.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Detergent Compositions (AREA)
  • Centrifugal Separators (AREA)
  • Control Of Washing Machine And Dryer (AREA)
EP07102400A 2007-02-14 2007-02-14 Washing machine with liquid washing agents dispenser Not-in-force EP1959045B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP07102400A EP1959045B1 (en) 2007-02-14 2007-02-14 Washing machine with liquid washing agents dispenser
AT07102400T ATE464421T1 (de) 2007-02-14 2007-02-14 Waschmaschine mit flüssigwaschmittelausgeber
ES07102400T ES2343033T3 (es) 2007-02-14 2007-02-14 Maquina lavadora con dispensador de agentes de lavado liquidos.
PL07102400T PL1959045T3 (pl) 2007-02-14 2007-02-14 Myjąca maszyna z dozownikiem ciekłych środków piorących
DE602007005925T DE602007005925D1 (de) 2007-02-14 2007-02-14 Waschmaschine mit Flüssigwaschmittelausgeber
RU2009134125/12A RU2434980C2 (ru) 2007-02-14 2008-02-12 Моечная машина с дозатором жидких моющих средств
PCT/EP2008/001029 WO2008098729A1 (en) 2007-02-14 2008-02-12 Washing machine with liquid washing agents dispenser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07102400A EP1959045B1 (en) 2007-02-14 2007-02-14 Washing machine with liquid washing agents dispenser

Publications (2)

Publication Number Publication Date
EP1959045A1 EP1959045A1 (en) 2008-08-20
EP1959045B1 true EP1959045B1 (en) 2010-04-14

Family

ID=38141150

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07102400A Not-in-force EP1959045B1 (en) 2007-02-14 2007-02-14 Washing machine with liquid washing agents dispenser

Country Status (7)

Country Link
EP (1) EP1959045B1 (pl)
AT (1) ATE464421T1 (pl)
DE (1) DE602007005925D1 (pl)
ES (1) ES2343033T3 (pl)
PL (1) PL1959045T3 (pl)
RU (1) RU2434980C2 (pl)
WO (1) WO2008098729A1 (pl)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008042655A1 (de) * 2008-10-07 2010-04-08 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Haushaltsgerät mit einem automatischen Dosiersystem sowie Verfahren zum automatischen Dosieren
DE102008054997B4 (de) * 2008-12-19 2010-10-14 BSH Bosch und Siemens Hausgeräte GmbH Reinigungsgerät mit einer Reinigungsmittelabgabevorrichtung
DE102010028612A1 (de) * 2010-05-05 2011-11-10 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Hausgerät mit einem Vorratsbehälter und einer Dosierpumpe
DE102010031677A1 (de) * 2010-07-22 2012-01-26 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Haushaltsgerät mit Vorratsbehälter im oberen Bereich
ITTO20111118A1 (it) * 2011-12-07 2013-06-08 Indesit Co Spa Macchina lavabiancheria a carica frontale di uso domestico, in particolare lavatrice o lavasciuga.
WO2013178990A2 (en) * 2012-05-30 2013-12-05 Reckitt Benckiser N.V. Composition
KR101992137B1 (ko) 2012-11-26 2019-06-25 삼성전자주식회사 액체감지장치, 세제공급장치 및 이를 가지는 세탁기
IT201700078567A1 (it) * 2017-07-13 2019-01-13 Candy Spa Metodo per valutare automaticamente lo spostamento di un oggetto all’interno di una zona di lavaggio di una macchina lavastoviglie.
EP3673106B1 (en) * 2017-08-24 2023-01-04 Arçelik Anonim Sirketi A washing machine having an improved treatment agent feeding and dosing device
KR102594512B1 (ko) * 2018-11-15 2023-10-25 엘지전자 주식회사 세탁기
AU2019394072B2 (en) * 2018-12-05 2025-12-18 Smiics Gmbh Apparatus for dosing detergent, container for receiving and dosing powder detergent and/or liquid detergent, and corresponding system
PL3888521T3 (pl) 2020-03-30 2024-04-08 Elbi International S.P.A. Urządzenie piorące/zmywające mające system dozowania detergentu, takiego jak środek do prania/zmywania i/albo środek do płukania/nabłyszczania, powiązany z drzwiami urządzenia piorącego/ zmywającego, w szczególności zmywarka
KR102906784B1 (ko) 2020-04-24 2026-01-05 엘지전자 주식회사 의류처리장치
US12351970B2 (en) 2021-02-01 2025-07-08 Whirlpool Corporation Dispensing assembly for appliance

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3403628A1 (de) * 1984-02-02 1985-08-14 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Automatisch gesteuerte waschmaschine
GB8513481D0 (en) * 1985-05-29 1985-07-03 Unilever Plc Liquid-product packaging & dispensing assembly
IT215679Z2 (it) * 1988-01-28 1990-10-22 Zanussi A Spa Industrie Contenitore erogatore di detersivi liquidi per macchine lavatrici.
KR20030096795A (ko) * 2002-06-17 2003-12-31 삼성전자주식회사 드럼세탁기의 세제함

Also Published As

Publication number Publication date
EP1959045A1 (en) 2008-08-20
ES2343033T3 (es) 2010-07-21
ATE464421T1 (de) 2010-04-15
DE602007005925D1 (de) 2010-05-27
RU2009134125A (ru) 2011-03-20
RU2434980C2 (ru) 2011-11-27
WO2008098729A1 (en) 2008-08-21
PL1959045T3 (pl) 2010-09-30

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