EP1457593A1 - Lecksicherungsvorrichtung für elektrische Haushaltsmaschinen mit Wasseranschluss - Google Patents

Lecksicherungsvorrichtung für elektrische Haushaltsmaschinen mit Wasseranschluss Download PDF

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Publication number
EP1457593A1
EP1457593A1 EP04356032A EP04356032A EP1457593A1 EP 1457593 A1 EP1457593 A1 EP 1457593A1 EP 04356032 A EP04356032 A EP 04356032A EP 04356032 A EP04356032 A EP 04356032A EP 1457593 A1 EP1457593 A1 EP 1457593A1
Authority
EP
European Patent Office
Prior art keywords
circuit
contactor
bowl
household appliance
supply
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.)
Granted
Application number
EP04356032A
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English (en)
French (fr)
Other versions
EP1457593B1 (de
Inventor
Henri Guillemaut
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1457593A1 publication Critical patent/EP1457593A1/de
Application granted granted Critical
Publication of EP1457593B1 publication Critical patent/EP1457593B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • A47L15/421—Safety arrangements for preventing water damage
    • 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
    • D06F39/081—Safety arrangements for preventing water damage

Definitions

  • the invention relates to the technical field of devices household appliances supplied with liquid, such as washing machine, dishwasher, or any other electrical appliance that receives and containing a liquid, alone or in mixture.
  • the object of the present invention is to provide a device remedying to these disadvantages and thus avoiding claims and risks for human beings caused by leaks from these appliances.
  • the retention tank extends under the entire section transverse of the device and is dimensioned to contain all the liquid of the apparatus, while, on the one hand, the electrical control circuit is a low voltage circuit closable by the safety contactor and comprising a auxiliary contactor triggering the trip, and, on the other hand, the circuit electric device power supply includes, in addition to a normal operation switch, a latching emergency switch mechanical, able to close a circuit parallel to this main circuit, to supply the pump, the motor of the device and the warning means, during the lockout and under the control of a time-delayed relay ,.
  • the washing machine shown in Figure 1 is composed a frame covered with cover sheets and which, generally designated by the reference 11, carries a tank 5 whose cylindrical drum 5a can be driven in rotation by an electric motor M, via a transmission by pulleys and belt 6.
  • This motor is arranged in the part bottom of the chassis with an electric pump P to which are connected a suction pipe 7 and a discharge pipe 8.
  • the supply to the tank 5 is provided by a supply duct 9, equipped with a KA2 solenoid valve and connectable to tap 3 of the city water network.
  • the tank 5 contains a electric resistance R for heating the water it contains.
  • the lower part of the machine contains a tank 1 made of insulating material, for example plastic, which extends to below the tank 5, over the entire cross section of the machine and has a capacity allowing it to contain all the water coming from this tank.
  • the motor M and the pump P are out of this tank.
  • a bowl 2 is formed in the sloping bottom of tank 1 to accommodate the first leaks of liquid.
  • Bowl 2 is fitted with a drain V with a tap closure 10.
  • FIG. 2 shows, on an enlarged scale, that the bowl 2 contains a safety contactor 12 reacting to the presence of liquid and comprising, in the embodiment shown, two pairs of electrodes 4a and 4b.
  • Each of these electrodes is made of a rigid electrically conductive material and, for example, of aluminum, stainless steel, galvanized steel, etc.
  • the electrodes are placed in the bowl 2 parallel to each other and at the bottom of this bowl. , with a spacing of between 0.2 and 1.5 millimeters.
  • the surface of each of them is between 1 and 2.25 square decimeters depending on the voltage delivered by the secondary of the transformer T to which they are connected two by two. Tests carried out with two pairs of electrodes 4a, 4b, opposite and nested as in FIG. 2, each having a surface of 1 dm 2 , placed in a bowl 2 having a depth of 3 centimeters and containing washing water , showed that circuit 15 was traversed by a current of 3 amperes, sufficient to trigger the trip.
  • the safety contactor is of the float type reacting to the variation in level of the fluid in the bowl.
  • the washing machine includes, in known manner, a main contactor KM1 with self-maintenance, a push button “Start” 13, a push button “Stop” 14 and a normal contactor KM2.
  • Contact KA3a is on circuit 16 supplying solenoid valve KA2, that KA3b on circuit 17 supplying the auxiliary contactor KM2 and that KA3c on a circuit 18.
  • the latter is arranged, with a circuit 20 controlled by the contactor KM3, in parallel with the general supply circuit.
  • the machine can operate normally in following a program given to him by a mechanical programmer or electronic.
  • the liquid In the presence of liquid leaking out of the tank 5, the liquid is collected in the tank 1 and travels to the bowl 2 thanks to the sloping shape of the bottom of this tank.
  • the liquid in the bowl composed of water with impurities or detergents making it conductive, closes the low voltage electrical circuit 15 between the electrodes 4a and 4b.
  • the auxiliary contactor KA3 is thus supplied, so that its contacts KA3a and KA3b move to the open position, while that KA3c goes into the closed position.
  • relay KA1 which delays the opening of contactor KM1, the drain pump P is supplied by the parallel circuit 20 and proceeds to emptying the tank, while the motor M is powered up spin to rid the contents of the tank of any water
  • the relay timed opening KA1 causes the main contactor KM1 to open.
  • the machine is drained and is locked by contactor KM3. The leak was brought under control without any water damage.
  • the device according to the invention guarantees against all water damage and all dangers of origin electric.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
  • Control Of Electric Motors In General (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
EP04356032A 2003-03-13 2004-03-08 Lecksicherungsvorrichtung für elektrische Haushaltsmaschinen mit Wasseranschluss Expired - Lifetime EP1457593B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0303200 2003-03-13
FR0303200A FR2852334B1 (fr) 2003-03-13 2003-03-13 Dispositif integre aux appareils electromenagers evitant les degats des eaux provoques par des fuites de liquides

Publications (2)

Publication Number Publication Date
EP1457593A1 true EP1457593A1 (de) 2004-09-15
EP1457593B1 EP1457593B1 (de) 2007-09-26

Family

ID=32749801

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04356032A Expired - Lifetime EP1457593B1 (de) 2003-03-13 2004-03-08 Lecksicherungsvorrichtung für elektrische Haushaltsmaschinen mit Wasseranschluss

Country Status (4)

Country Link
EP (1) EP1457593B1 (de)
AT (1) ATE374274T1 (de)
DE (1) DE602004009123D1 (de)
FR (1) FR2852334B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008000615A1 (de) * 2006-06-29 2008-01-03 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum schutz vor leckwasserschäden und von vorn beschickbare waschmaschine zur durchführung des verfahrens
CN103334270A (zh) * 2013-06-27 2013-10-02 无锡小天鹅股份有限公司 用于洗衣机的进水控制装置及具有其的洗衣机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1591008A (de) * 1967-12-11 1970-04-20
DE3314992A1 (de) * 1983-04-26 1984-10-31 Klaus 6832 Hockenheim Maurer Geraet mit einer wasserzuleitung, insbesondere waschmaschine, spuelmaschine oder dergleichen
DE3640761A1 (de) * 1986-11-28 1988-06-01 Miele & Cie Geschirrspuelmaschine, waschmaschine oder dgl., mit einer auffangwanne zum auffangen von leckwasser

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2401888A1 (de) * 1974-01-16 1975-07-17 Licentia Gmbh Ueberwachungsvorrichtung fuer das fluessigkeitsdurchlaufsystem in wasch- oder geschirrspuelmaschinen
FR2517440A1 (fr) * 1981-12-02 1983-06-03 Stempniakowski Tony Disjoncteur de courant en cas de detection d'une fuite d'eau

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1591008A (de) * 1967-12-11 1970-04-20
DE3314992A1 (de) * 1983-04-26 1984-10-31 Klaus 6832 Hockenheim Maurer Geraet mit einer wasserzuleitung, insbesondere waschmaschine, spuelmaschine oder dergleichen
DE3640761A1 (de) * 1986-11-28 1988-06-01 Miele & Cie Geschirrspuelmaschine, waschmaschine oder dgl., mit einer auffangwanne zum auffangen von leckwasser

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008000615A1 (de) * 2006-06-29 2008-01-03 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum schutz vor leckwasserschäden und von vorn beschickbare waschmaschine zur durchführung des verfahrens
CN103334270A (zh) * 2013-06-27 2013-10-02 无锡小天鹅股份有限公司 用于洗衣机的进水控制装置及具有其的洗衣机
CN103334270B (zh) * 2013-06-27 2016-05-25 无锡小天鹅股份有限公司 用于洗衣机的进水控制装置及具有其的洗衣机

Also Published As

Publication number Publication date
ATE374274T1 (de) 2007-10-15
DE602004009123D1 (de) 2007-11-08
FR2852334A1 (fr) 2004-09-17
EP1457593B1 (de) 2007-09-26
FR2852334B1 (fr) 2007-06-15

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