EP2055958A2 - Appareil ménager à conduite d'eau doté d'une pompe ayant une fonction de ventilation - Google Patents

Appareil ménager à conduite d'eau doté d'une pompe ayant une fonction de ventilation Download PDF

Info

Publication number
EP2055958A2
EP2055958A2 EP08105509A EP08105509A EP2055958A2 EP 2055958 A2 EP2055958 A2 EP 2055958A2 EP 08105509 A EP08105509 A EP 08105509A EP 08105509 A EP08105509 A EP 08105509A EP 2055958 A2 EP2055958 A2 EP 2055958A2
Authority
EP
European Patent Office
Prior art keywords
water
pump
valve
motor
household 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.)
Granted
Application number
EP08105509A
Other languages
German (de)
English (en)
Other versions
EP2055958A3 (fr
EP2055958B1 (fr
Inventor
Stephan Lutz
Bruno Reiter
Michael Rosenbauer
Martin Stickel
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
Priority to PL08105509T priority Critical patent/PL2055958T3/pl
Publication of EP2055958A2 publication Critical patent/EP2055958A2/fr
Publication of EP2055958A3 publication Critical patent/EP2055958A3/fr
Application granted granted Critical
Publication of EP2055958B1 publication Critical patent/EP2055958B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/042—Axially shiftable rotors
    • 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
    • A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
    • A47L15/4223—Devices for water discharge, e.g. devices to prevent siphoning, non-return valves
    • 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
    • A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
    • A47L15/4225—Arrangements or adaption of recirculation or discharge 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
    • 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
    • D06F39/083—Liquid discharge or recirculation 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
    • 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
    • D06F39/083—Liquid discharge or recirculation arrangements
    • D06F39/085—Arrangements or adaptations of pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2261—Rotors specially for centrifugal pumps with special measures
    • F04D29/2283—Rotors specially for centrifugal pumps with special measures for reverse pumping action

Definitions

  • the invention relates to a water-conducting household appliance, in particular a dishwasher or washing machine according to the preamble of patent claim 1.
  • Water-conducting household appliances such as dishwashers, have a line system that allows to promote wash liquor after completion of a cleaning process from the water-bearing household appliance in a house-side sewage disposal system.
  • a drain pump is provided for this purpose, which stands for this purpose with a pipe system of the water-conducting household appliance in combination.
  • a washer for a dishwasher which additionally has a valve function, which allows to prevent unwanted flow processes in the duct system of the dishwasher, such as a vacuuming of the household appliance by currents in the home-side sanitation system.
  • the impeller in the pump is also formed as a valve body and arranged coaxially displaceable along an axis on which the valve body is arranged, wherein the axis is in operative connection with a motor for driving the pump.
  • spring means or alternatively electromagnets may be used as actuators.
  • the invention relates to a water-conducting household appliance, water-conducting household appliance, in particular dishwashing or washing machine, comprising at least one connected to a line system of the water-conducting household appliance in connection pump, which communicates with a motor, and with a valve with an axially movable valve body, at the impeller of the pump is arranged.
  • the pump with a valve may be a drain pump, which serves to flush a rinsing process at the end of a rinsing process, which may be additionally mixed with dirt particles from a treatment room, such as a washing container of a dishwasher, in a house-side sanitation system promote.
  • the valve body can be moved independently of the impeller between a first position in which the valve is open and a second position in which the valve is closed, ie, in which the impeller and the valve body are two components.
  • it is provided to carry out the pump integrally with a valve, ie, the impeller of the pump at the same time forms a valve body for blocking a passage of the pump, said component axially, in particular axially along a motor axis for driving the pump can be moved so to open or close the valve.
  • the object of the invention is achieved in that the motor is operable in two directions of rotation and opens or closes the valve in dependence on the direction of rotation of the motor.
  • a controlled opening and closing of the valve can be achieved and thus a blocking of the passage of the pump.
  • no venting of the pump serving as a drain pump is necessary in the case of a dishwasher.
  • the motor is in operative connection with the valve, so that it is ensured that the valve is opened or closed solely by the arbitrary direction of rotation of the motor and is not influenced by flow conditions in the water system of the household appliance in an unintentional manner.
  • valve has a movable between an open and closed position valve body, wherein in the open position, a passage is released from an inlet to an outlet of the pump and the pump is able to promote wash liquor and in the closed position, this passage is closed, so even at flow-related negative pressure conditions no flow can occur in the pipe system of the water-conducting household appliance.
  • valve body can take any position between the open and the closed position, so as to allow, for example, a volume control.
  • valve body is axially movable along a motor and pump connecting shaft. This allows a particularly simple structure with a direct connection of motor and pump.
  • a transmission is preferably provided between the motor and the valve.
  • the transmission converts a rotational movement of the shaft in a linear, coaxial to the shaft running movement.
  • the gear preferably has a threaded spindle, which is designed such that, depending on a direction of rotation, the valve body is moved from an open to the closed position and is moved in reversing the direction of rotation of the motor from the closed to the open position.
  • the motor used can be any electric motor commonly used in water-conducting domestic appliances.
  • brushless DC or AC permanent magnet motors may be used, such as BLDC or BLAC motors.
  • Brushless DC or AC motors can allow a sensorless detection of the speed of the motor and thus blocking the drive, so that detection of a blocking of the drive can be detected without additional sensors, especially when due to a change of direction caused the valve from the open in the closed position or vice versa is moved and the further movement is limited by a stop.
  • BLCD and BLAC motors also allow a quick change of direction and thus a utilization of the inertia of the impeller of the pump to effect a position change, without the need for further mechanical aids are required.
  • the engine with a control of the water-conducting household appliance in the invention in the way that a closed valve is detected and according to the engine is not controlled. Furthermore, it can be provided so easily to respond to the error that blocking at a Change of direction does not occur, eg by refilling a certain amount of fresh water with simultaneous pumping.
  • a drain line is arranged below the Spül electer convinceds, that is, that the water-conducting domestic appliance has no siphon-forming drain guide and drain venting, which form a backstop.
  • the water-conducting household appliance has a simplified structure, wherein the space gained can be used, for example, to improve the insulation or for the arrangement of buffers for rinsing liquor.
  • the pump can be dimensioned smaller in terms of its performance, which provides energy savings and additional space gain.
  • valve body seal is arranged on a cover of the pump, so that a particularly simple structure results, which also facilitates the performance of maintenance or repair work.
  • Impeller of the pump is arranged axially movable together with the valve body of the valve, i. Impeller and valve body are a component and movable between a first position in which the valve is open and a second position in which the valve is closed.
  • the invention relates to a pump according to the invention for a household appliance according to the invention.
  • the washing machine pump 2 serving as a drain pump has a passage 24 with a pump space 22, the passage 24 being connected to an inlet port (not shown) and to a pump Outlet port (not shown) to a conduit system (not shown) of a dishwasher are connected.
  • an impeller 14 is rotatably mounted on a shaft 6.
  • the shaft 6 connects to a motor 18, such as a BLDC or BLAC motor, which is connected to a controller (not shown) of a water-conducting domestic appliance for driving.
  • the impeller 14 has at its front end to a valve body 20 which abuts in the closed position (not shown) on the inside of the pump chamber 22 arranged seal 10 and thus causes a secure closure of the passage of the pump.
  • a further seal 12 is also provided on the pump cover 16.
  • valve body 20 and the seal 10, the valve 4.
  • the valve body 20 is fixedly connected to the impeller 14 and in particular in one piece, for example made of plastic, formed.
  • the impeller 14 further includes a spindle gear having thread 8, which is in engagement with the shaft 6 and allows, depending on the direction of rotation of the shaft 6, the impeller 14 is moved with the valve body 20 from the open to the closed position or vice versa ,
  • the spindle gear (not shown) of the transmission 8 the rotational movement of the shaft 6 in a coaxial with the shaft 6 extending, linear, direction of rotation dependent reciprocation of the valve body 20 to.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Washing And Drying Of Tableware (AREA)
EP08105509.7A 2007-10-31 2008-10-08 Appareil ménager à conduite d'eau doté d'une pompe ayant une fonction de ventilation Active EP2055958B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL08105509T PL2055958T3 (pl) 2007-10-31 2008-10-08 Prowadzące wodę urządzenie gospodarstwa domowego z pompą z funkcją zaworu

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007052082A DE102007052082A1 (de) 2007-10-31 2007-10-31 Wasserführendes Haushaltsgerät mit einer Pumpe mit Ventilfunktion

Publications (3)

Publication Number Publication Date
EP2055958A2 true EP2055958A2 (fr) 2009-05-06
EP2055958A3 EP2055958A3 (fr) 2013-02-27
EP2055958B1 EP2055958B1 (fr) 2020-08-05

Family

ID=40348411

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08105509.7A Active EP2055958B1 (fr) 2007-10-31 2008-10-08 Appareil ménager à conduite d'eau doté d'une pompe ayant une fonction de ventilation

Country Status (5)

Country Link
EP (1) EP2055958B1 (fr)
CN (1) CN101424029A (fr)
DE (1) DE102007052082A1 (fr)
ES (1) ES2813907T3 (fr)
PL (1) PL2055958T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017153138A1 (fr) * 2016-03-08 2017-09-14 BSH Hausgeräte GmbH Appareil d'entretien du linge équipé d'une commande
EP3495547A1 (fr) * 2017-12-11 2019-06-12 Vestel Elektronik Sanayi ve Ticaret A.S. Pompe pour machine à laver, machine à laver et procédé
EP3597813A1 (fr) * 2018-07-19 2020-01-22 Lg Electronics Inc. Pompe pour machine à laver

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20110337A1 (it) * 2011-04-15 2012-10-16 Eltek Spa Dispositivo di sicurezza contro perdite di fluido per elettrodomestici
CN105233931B (zh) * 2015-10-29 2017-12-01 苏州美生环保科技有限公司 一种家用生物垃圾处理器上的排出组件
CN105233964B (zh) * 2015-10-29 2018-02-09 苏州美生环保科技有限公司 一种排出组件
CN107190482A (zh) * 2016-02-25 2017-09-22 赵永潮 一种改进型洗衣机排水泵
CN108209824B (zh) * 2018-03-16 2020-10-30 佛山市海汇洗涤技术服务有限公司 一种洗碗机管路连接结构及洗碗机

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB876839A (en) 1959-07-27 1961-09-06 Gen Motors Corp Improvements in dishwashing machines
EP1767788A1 (fr) 2005-09-23 2007-03-28 Coprecitec, S.L. Pompe pour électroménager

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2510787A1 (de) * 1975-03-08 1976-09-16 Vaillant Joh Kg Pumpe
DE10115989A1 (de) * 2000-04-04 2001-12-13 Bernhard Stadler Radial-Strömungsmaschine, insbesondere Umwälzpumpe
DE10145411A1 (de) * 2001-09-14 2003-04-03 Wilo Gmbh Laufrad mit Ventilfunktion
DE10331973A1 (de) * 2003-04-24 2004-11-11 Wilo Ag Umwälzpumpe mit Ventileinrichtung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB876839A (en) 1959-07-27 1961-09-06 Gen Motors Corp Improvements in dishwashing machines
EP1767788A1 (fr) 2005-09-23 2007-03-28 Coprecitec, S.L. Pompe pour électroménager

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017153138A1 (fr) * 2016-03-08 2017-09-14 BSH Hausgeräte GmbH Appareil d'entretien du linge équipé d'une commande
EP3495547A1 (fr) * 2017-12-11 2019-06-12 Vestel Elektronik Sanayi ve Ticaret A.S. Pompe pour machine à laver, machine à laver et procédé
EP3597813A1 (fr) * 2018-07-19 2020-01-22 Lg Electronics Inc. Pompe pour machine à laver
US11377778B2 (en) 2018-07-19 2022-07-05 Lg Electronics Inc. Washing machine

Also Published As

Publication number Publication date
EP2055958A3 (fr) 2013-02-27
DE102007052082A1 (de) 2009-05-07
CN101424029A (zh) 2009-05-06
EP2055958B1 (fr) 2020-08-05
PL2055958T3 (pl) 2021-04-06
ES2813907T3 (es) 2021-03-25

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