EP2188432B1 - Wasserführendes haushaltsgerät - Google Patents

Wasserführendes haushaltsgerät Download PDF

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Publication number
EP2188432B1
EP2188432B1 EP08787424.4A EP08787424A EP2188432B1 EP 2188432 B1 EP2188432 B1 EP 2188432B1 EP 08787424 A EP08787424 A EP 08787424A EP 2188432 B1 EP2188432 B1 EP 2188432B1
Authority
EP
European Patent Office
Prior art keywords
water
switch
controller
safety switch
domestic appliance
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
EP08787424.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2188432A1 (de
Inventor
Jens Christmann
Reinhard Hering
Michael Rosenbauer
Franz-Josef Wagner
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
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
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP2188432A1 publication Critical patent/EP2188432A1/de
Application granted granted Critical
Publication of EP2188432B1 publication Critical patent/EP2188432B1/de
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
    • 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
    • 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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/47—Responding to irregular working conditions, e.g. malfunctioning of pumps 
    • 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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/28—Arrangements for program selection, e.g. control panels therefor; Arrangements for indicating program parameters, e.g. the selected program or its progress
    • 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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/42—Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/58—Indications or alarms to the control system or to the user
    • 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
    • D06F2105/58—Indications or alarms to the control system or to the user
    • D06F2105/60—Audible signals

Definitions

  • the invention relates to a water-conducting household appliance according to the preamble of patent claim 1.
  • a water safety device In order to avoid leakage of water from the domestic appliance and to improve the water safety of household appliances switched off, in particular dishwashers and washing machines at an incomplete closing of the water supply valves, is from the DE 35 44 307 A1 a water safety device is known in which in case of a faulty discharge of water when the device is switched off a drain pump is automatically activated.
  • the safety device comprises a main switch, a water safety switch and a control for activating a drain pump.
  • the main switch and the water safety switch is in each case assigned a connection to the electrical supply network, wherein the water safety switch can be switched by a float.
  • the drain pump is controlled by an electronic control unit during normal operation of the household appliance.
  • the water safety switch bridges the main switch of the domestic appliance and connects the drain pump directly to the electrical supply network.
  • the activation of the drain pump is thus independent of the position of the main switch directly through the water safety switch.
  • the US 4,069,425 A shows a dishwasher as a water-conducting household appliance, which has a water safety switch and a coupled with a float two-position switch. This water safety switch is moved with increasing water level in a switching position in which a solenoid or a pump is activated to suck the water.
  • the dishwasher further includes a controller and a pump motor unit. Numerous scenarios are described, such as the failure of different components a water damage can be avoided.
  • a control circuit having a microprocessor which is to detect and identify a flooding state in response to a flooding device signal.
  • the microprocessor initiates a routine that interrupts the normal operation of the water-bearing household appliance and pumps off water until it settles back to a predetermined level. It is provided that the routine is designed as a priority circuit and thus proceeds to all other control options.
  • the DE 42 09 582 A1 relates to a protective device with a supply hose, which is tightly covered by a leak water hose. From the leak water hose a hose leads to a monitoring device, which brings the inlet valve in the closed position in the leakage water case and turns on a drain pump. Disconnection of the inlet valve and switching on the drain pump concerned in Leakage trap a household appliance associated with the leak water or level control device.
  • the water safety switch has a connection to the controller.
  • This may be an electrically conductive connection in the case of a float switch.
  • the water safety switch may be, for example, a light guide designed as a dipstick, which is optically conductively connected to the controller. If undesired water leaks, the water safety switch switches to the first switching position and connects the controller to the electrical supply network. The controller then initiates the necessary control steps to prevent water leakage and associated water damage: it turns on the drain pump. The required control steps can be stored in the controller as a program. Even when the household appliance is switched off, the water safety of the household appliance is therefore guaranteed without standby losses.
  • By controlling the drain pump via the controller it is possible to control the delivery rate of the drain pump so that it can not overheat or run dry.
  • the controller is connected to a main switch of the water-conducting household appliance.
  • This connection can be designed to be electrically conductive and thus allows, for example, to ignore switch-on signals of the main switch if the water safety switch is switched on due to incorrectly leaked water.
  • the main switch in the on state connects the controller with the electrical supply network, ie the main switch switches the mains voltage.
  • the main switch is in communication with the controller and the controller is directly connected to the mains voltage, wherein the controller has a switching power supply for converting the mains voltage that is activated by the main switch.
  • the main switch and the water safety switch with a Connection to an electrical supply network are electrically connected and form a parallel connection.
  • the water safety switch is designed to be self-diagnostic, so that it can be checked for functionality and in the presence of a malfunction, a corresponding signal can be generated.
  • the water safety switch has a first contact associated with the first switching position, a second switching position associated second contact and a switchable between these two contacts or switch positions switching element.
  • the switching element is connected via a first connection to the controller.
  • the first contact has a connection to the electrical supply network.
  • the second contact is electrically connected to the controller via a second terminal. In the first switching position, the switching element connects the electrical supply network with the controller, in the second switching position, the first terminal of the controller is connected to the second terminal of the controller.
  • the controller can thus recognize when the main switch, in which switching position is the water safety switch. For example, if the water safety switch is not in the second switching position when the main switch is turned on, the controller can determine either a defect of the water safety switch or a faulty leakage of water in this way, but the water safety switch must be in the first switching position for the latter case , The controller can thus diagnose the switching position of the water safety switch, whereby the device safety of the household appliance in the on state is further improved.
  • the water safety switch may comprise a return means according to another embodiment. It can be designed as a spring or magnet and assigned to the switching element and switch it to the second switching position. This allows the Switch water safety switch back to a second due to a leakage caused by switching to the first switching position and thus interrupt the electrical connection of the controller to the electrical supply network with the main switch off. In addition, accidental switching of the water safety switch can be excluded in the first switching position, for example due to mechanical shocks.
  • the safety device has a warning device, which is electrically connected to the controller.
  • the controller activates the warning device as soon as the water safety switch is in the first switching position.
  • the signal device may be, for example, an acoustic and / or optical signal device which generates an alarm tone or a light signal when actuated by the controller. It signals to the user of the household appliance that there is a malfunction.
  • Electromagnetically controlled inlet valves for household appliances are known from the prior art, which prevent the inlet of water into the household appliance as a water inlet valve in the de-energized state.
  • To further improve the water safety of the water supply of the household appliance according to the invention may comprise an electromagnetically controlled inlet valve, which is connected via an electrical line to the controller.
  • the inlet valve is controlled by the controller and is de-energized in the first switching position of the water safety switch and thus closed. In the case of leakage of the household appliance can thus be prevented in an advantageous manner, the further inflow of water in the household appliance.
  • a float For receiving unwanted leaking water collecting containers are known, which is, for example, arranged below the water-bearing components tubs.
  • a float can be arranged, which floats with a filling of the collecting container with water.
  • the float is so coupled to the water safety switch that he the floating Water safety switch switches to the first switching position and thus connects the controller with the electrical supply network, ie activated.
  • a water safety switch of the water-conducting household appliance is checked and the household appliance is controlled in the intended manner according to a program on detecting erroneously leaking water. If the controller detects that the water safety switch is not in the first switching position, the household appliance is controlled by the controller, for example, according to a set wash program, controlled.
  • the first switching position causes e.g. the controller for pumping out water or signaling a defect.
  • the check of the switching position of the water safety switch thus represents a self-diagnosis of the safety device, wherein in the event of a defect, the controller can perform the necessary program steps, for example, activate a signaling device or a drain pump.
  • the water safety switch is monitored switching state independent, i. regardless of whether the household appliance is on or off.
  • the water safety switch is checked continuously or at intervals for functionality.
  • a check of the water safety switch can be made at each switch-on and / or switch-off or independently, so regardless of whether the household appliance is on or off. This can be done continuously or at intervals.
  • the drain pump for pumping leaked water regardless of the switching position of the main switch to be activated. This can be pumped out undesirable escaped water both in the off and on state.
  • the drain pump according to a further embodiment of the invention with time interruptions, d. H. for example, operated at intervals.
  • the household appliance 1 is a dishwasher, which has a water connection 4 with an electromagnetic inlet valve 40 for the supply of fresh water in a washing container 10.
  • an emptying or drain pump 8 is provided, which pumps the wastewater via a suction line 12 from the container 10 in a sewer line 6.
  • controller 14 The control of the household appliance 1 via a controller 14, in particular an electronic control, each having an electrical control line to the various electrical components of the household appliance 1.
  • a user takes the domestic appliance 1 into operation via a main switch 16, he connects the controller 14 to the electrical supply network 18 via a control line 20.
  • the controller 14 controls the electrical components of the household appliance 1 in accordance with the requirements of a work program. In this way, the controller 14, for example, at the end of a wash program, the drain pump 8 to pump rinsing liquor from the container 10 to activate.
  • a water safety switch 22 Parallel to the main switch 16 is a water safety switch 22. He can also connect the controller 14 to the electrical supply network 18.
  • the Water safety switch 22 includes a switching element 24 which is switchable between a first and second switching position. The first switching position, the working position, is associated with a first contact or working contact 26, which establishes a connection to the electrical supply network 18. The second switching position, the rest position, a second contact or normally closed contact 28 is assigned, which is connected via a second connecting line 32 to the controller 14.
  • the switching element 24 is connected via a first connecting line 30 to the controller 14 and can be moved back and forth between the normally open contact 26 and the normally closed contact 28.
  • the switching element 24 connects the controller 14 to the electrical supply network 18.
  • the switching element 24 in conjunction with the normally closed contact 28, so that the first and second connection lines 30, 32 connected to the controller 14 in a kind of short circuit with each other are connected.
  • This structure of the safety switch 22 with a rest position in which the parallel lines 30, 32 are bridged with each other, thus allowing a diagnosis of the switching position of the safety switch 22.
  • the main switch 16 must be closed, so be the household appliance 1 in operation.
  • the controller 14 may also activate the signaling device 34 when the water safety switch 22 is neither in the working nor in the rest position and thus there is a possible defect of the water safety switch 22.
  • a float 38 is disposed in a arranged under the container 10 drip tray 36.
  • the float 38 has a mechanical connection 42 to the switching element 24.
  • the float 38 floats due to the accumulation of water in the sump 36 and moves the switching element 24 in the working position, ie in conjunction with the normally open contact 26.
  • the controller 14 also activates a warning device 34 with an audible and / or visual warning signal.
  • controller 14 If the controller 14 is turned on via the main switch 16, it can also activate the drain pump 8 in accordance with a program for pumping out incorrectly leaked water in a water safety switch 22 in the working position. In addition, it can still switch the electromagnetically controlled inlet valve 40 of the water connection 4 de-energized and close.
  • the water safety switch 22 also electrically switch to the working position, for which preferably, for example, a battery is required as an electrical energy source.
  • the float 38 may be arranged in an overflow region of the container 10 instead of in the collecting trough 36.
  • the switching element 24 is coupled to a coil spring, not shown. It moves the switching element 24 in the direction of arrow A against the normally closed contact 28 in the rest position. Due to the small size of the switching element 24 only small actuating forces are required.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Washing And Drying Of Tableware (AREA)
EP08787424.4A 2007-08-31 2008-08-22 Wasserführendes haushaltsgerät Active EP2188432B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007041310.8A DE102007041310B4 (de) 2007-08-31 2007-08-31 Wasserführendes Haushaltsgerät
PCT/EP2008/061025 WO2009027341A1 (de) 2007-08-31 2008-08-22 Wasserführendes haushaltsgerät

Publications (2)

Publication Number Publication Date
EP2188432A1 EP2188432A1 (de) 2010-05-26
EP2188432B1 true EP2188432B1 (de) 2014-10-08

Family

ID=39944271

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08787424.4A Active EP2188432B1 (de) 2007-08-31 2008-08-22 Wasserführendes haushaltsgerät

Country Status (7)

Country Link
US (1) US8440025B2 (ko)
EP (1) EP2188432B1 (ko)
KR (1) KR20100059852A (ko)
CN (1) CN101790607A (ko)
DE (1) DE102007041310B4 (ko)
RU (1) RU2474632C2 (ko)
WO (1) WO2009027341A1 (ko)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010038485A1 (de) * 2010-07-27 2012-02-02 BSH Bosch und Siemens Hausgeräte GmbH Schaltung und Verfahren zum Betreiben eines Hausgeräts sowie Hausgerät
PL2886702T3 (pl) * 2013-12-19 2017-08-31 Electrolux Appliances Aktiebolag System kontroli przelewania
IT201700001017A1 (it) * 2017-01-09 2018-07-09 Manuela Brignone Lavatrice con sicurezza elettronica di antiallagamento
CN107416950A (zh) * 2017-06-16 2017-12-01 福州金慧健康科技有限公司 一种自由基产生装置以及带有该自由基产生装置的洗碗机
US10411941B2 (en) 2017-12-07 2019-09-10 Huawei Technologies Co., Ltd. Semi-orthogonal multiple access with power-adaptive constellation
CN113897759B (zh) * 2021-11-18 2023-07-25 怀化学院 一种水动力驱动小型洗衣装置

Family Cites Families (20)

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Publication number Priority date Publication date Assignee Title
US2526444A (en) * 1946-01-08 1950-10-17 Gen Electric Control for automatic washing machines
US2752769A (en) * 1952-11-14 1956-07-03 Gen Electric Control circuits for automatic washing machines
US3552156A (en) * 1968-09-18 1971-01-05 Philips Corp Washing and spin-drying machine
US3986372A (en) * 1976-01-16 1976-10-19 Whirlpool Corporation Appliance programmer including a safety circuit
US4069425A (en) * 1976-06-03 1978-01-17 General Electric Company Full-time flood protection control for dishwasher
US4180088A (en) * 1977-12-05 1979-12-25 Mallett Raymond H Water shutoff system
CA1136247A (en) 1978-12-18 1982-11-23 General Electric Company Microprocessor based control circuit for washing appliances
US4305420A (en) * 1980-03-18 1981-12-15 Oscar Nussdorf Automatic water or liquid safety valve assembly
DE8523674U1 (de) 1985-08-17 1987-08-20 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Sicherheitseinrichtung für eine Druckmittelleitung
DE3538604A1 (de) * 1985-10-30 1987-05-07 Licentia Gmbh Ueberwachungsvorrichtung fuer wasserfuehrende haushaltsgeraete
DE3544307A1 (de) 1985-12-14 1987-06-19 Licentia Gmbh Haushaltsgeraet mit einem wasseranschluss
US5168885A (en) * 1990-12-28 1992-12-08 Whirlpool Corporation Power system for a dishwasher
JPH0531287A (ja) * 1991-07-31 1993-02-09 Sanyo Electric Co Ltd 洗濯機
DE4209582C2 (de) * 1992-03-25 1998-07-16 Aeg Hausgeraete Gmbh Schutzeinrichtung gegen Überschwemmung
IT1264053B (it) * 1993-02-08 1996-09-09 Danilo Beraldo Dispositivo di controllo perdita di un sistema di caricamento acqua diun elettrodomestico.
DE19809114C1 (de) 1998-03-04 1999-06-17 Whirlpool Co Sicherheitsschaltung für wasserführende Haushaltsgeräte
KR100436150B1 (ko) * 2001-12-24 2004-06-14 삼성전자주식회사 삶는 세탁기의 제어방법
JP2005261625A (ja) * 2004-03-18 2005-09-29 Sanyo Electric Co Ltd 食器洗浄機
CN2711485Y (zh) 2004-07-26 2005-07-20 王青远 防泄露自控水阀
ITRN20060050A1 (it) 2006-08-10 2008-02-11 Indesit Company Spa Macchina di lavaggio con dispositivo antitrabocco.

Also Published As

Publication number Publication date
DE102007041310B4 (de) 2016-07-21
DE102007041310A1 (de) 2009-03-05
RU2010108343A (ru) 2011-10-10
CN101790607A (zh) 2010-07-28
US8440025B2 (en) 2013-05-14
WO2009027341A1 (de) 2009-03-05
EP2188432A1 (de) 2010-05-26
RU2474632C2 (ru) 2013-02-10
US20110155176A1 (en) 2011-06-30
KR20100059852A (ko) 2010-06-04

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