EP2055958B1 - 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

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Publication number
EP2055958B1
EP2055958B1 EP08105509.7A EP08105509A EP2055958B1 EP 2055958 B1 EP2055958 B1 EP 2055958B1 EP 08105509 A EP08105509 A EP 08105509A EP 2055958 B1 EP2055958 B1 EP 2055958B1
Authority
EP
European Patent Office
Prior art keywords
water
household appliance
pump
valve
motor
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
EP08105509.7A
Other languages
German (de)
English (en)
Other versions
EP2055958A2 (fr
EP2055958A3 (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 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 Hausgeraete GmbH filed Critical BSH 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
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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-bearing household appliance, in particular a dishwasher or washing machine according to the preamble of claim 1.
  • Water-carrying household appliances such as dishwashers
  • a pipeline system that allows washing liquor to be conveyed out of the water-carrying household appliance into a domestic wastewater disposal system after a cleaning process has ended.
  • a drain pump is provided in dishwashers, which for this purpose is connected to a line system of the water-carrying household appliance.
  • a drain pump for a dishwasher which additionally has a valve function, which allows undesired flow processes in the pipe system of the dishwasher, for example an empty suction of the household appliance by currents in the house-side sewage disposal system.
  • the impeller in the pump is at the same time designed as a valve body and arranged coaxially displaceably along an axis on which the valve body is arranged, the axis being operatively connected to a motor for driving the pump.
  • Spring means or alternatively electromagnets can be used as actuators for the axial displacement of the valve body between an open and a closed position.
  • the device according to the EP 17 67 788 A1 however, has a complicated structure.
  • the dishwasher of the GB 876 839 A has a circulation pump with the additional function as a shredder.
  • Your "impeller” 152 is coupled to a "hollow spray tube” 30 which is driven in rotation by a motor 42 and through the openings 32 of which spray liquid is sprayed in the washing container (see page 1, column 2, lines 82-90 and FIGS. 1, 9 and 11).
  • the "valve assembly” 174 occupies a lower position and closes the "drain conduit opening" 180 of a sewage pipe “drain conduit” 168. If the "valve assembly” 174 is brought into an upper position, then a drain conduit opening 180 of the waste water line 168 (see FIG. 11) is opened so that the dirty washing water can run out of the washing container at the end of a partial washing cycle.
  • the invention is based on a water-conducting household appliance, water-conducting household appliance, in particular dishwasher or washing machine, at least comprising a pump which is connected to a line system of the water-conducting household appliance and is connected to a motor, and with a valve with an axially movable valve body, which is arranged on the pump impeller of the pump.
  • the pump with a valve can be a drain pump, which is used at the end of a rinsing process to wash the dirty washing liquor, which can also be contaminated with dirt particles, from a treatment room, such as a dishwasher rinse tank, to a sewage disposal system on site 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, i.e. the pump wheel and the valve body are two components.
  • the pump integrally with a valve ie the pump impeller of the pump also forms a valve body for blocking a passage of the pump, this component being able to be moved axially, in particular axially, along a motor axis to drive the pump, and so on to open or close the valve.
  • the object of the invention is achieved in that the motor can be operated in two directions of rotation and the valve opens or closes depending on the direction of rotation of the motor. Controlled opening and closing of the valve and thus blocking the passage of the pump can thus be achieved in a simple manner. Furthermore, 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 in an undesired manner by flow conditions in the line system of the water-carrying household appliance.
  • the valve has a valve body which can be moved between an open and closed position, a passage being opened from an inlet to an outlet of the pump in the open position and the pump being able to convey rinsing liquor and this passage being closed in the closed position, so that at flow-related negative pressure conditions, no flow can occur in the pipe system of the water-carrying household appliance.
  • the valve body can assume any positions between the open and the closed position, so as to enable quantity regulation, for example.
  • valve body can be moved axially along a shaft connecting the motor and the pump. This allows a particularly simple construction with a direct connection between the motor and the pump.
  • a gear is preferably provided between the motor and the valve.
  • the gearbox converts a rotary movement of the shaft into a linear movement that is coaxial to the shaft.
  • the transmission preferably has a threaded spindle which is designed such that the valve body is moved from an open to the closed position depending on a direction of rotation and is moved from the closed to the open position when the direction of rotation of the motor is reversed.
  • any electric motor common in water-bearing household appliances can be used as the motor.
  • brushless direct current or alternating current motors with permanent magnets such as BLDC or BLAC motors
  • Brushless DC or AC motors can allow a sensorless detection of the speed of the motor and thus a blocking of the drive, so that without additional sensors Detection of a blocking of the drive can be detected, in particular also if the valve is moved from the open to the closed position or vice versa due to a change in direction of rotation and the further movement is limited by a stop.
  • BLCD and BLAC motors also allow a quick change of direction of rotation and thus use of the inertia of the impeller of the pump to effect a change of position without the need for further mechanical aids.
  • the motor with a control of the water-carrying household appliance is preferably in accordance with the invention in such a way that a closed valve is detected and, accordingly, the motor is no longer activated. Furthermore, it can easily be provided to react to the fault that there is no blocking when changing the direction of rotation, e.g. by refilling a certain amount of fresh water with simultaneous pumping.
  • a drain line is arranged below the bottom of the washing container, i.e. that the water-carrying household appliance does not have a drain guide and drain ventilation forming a siphon, which form a backstop.
  • the water-carrying household appliance has a simplified structure, and the space gained can be used, for example, to improve the insulation or to arrange intermediate stores for the washing liquor.
  • the pump can be dimensioned smaller in terms of its performance, which provides energy savings and additional installation space.
  • a seal which interacts with the valve body is arranged on a cover of the pump, so that there is a particularly simple construction which also facilitates the carrying out of maintenance or repair work.
  • the pump wheel of the pump is arranged to be axially movable together with the valve body of the valve, ie the pump wheel and valve body are one component and can be moved between a first position in which the valve is open and a second position in which the valve is closed is.
  • the invention also includes a pump according to the invention for a household appliance according to the invention.
  • the pump 2 serving as a drain pump for a dishwasher has a passage 24 with a pump chamber 22, the passage 24 having an inlet connection (not shown) and an outlet connection (not shown) to a line system (not shown) of a dishwasher are connected.
  • An impeller 14 is rotatably arranged on a shaft 6 in the pump chamber 22.
  • the shaft 6 establishes a connection to a motor 18, such as a BLDC or BLAC motor, which is connected to a controller (not shown) of a water-bearing household appliance for actuation.
  • a motor 18 such as a BLDC or BLAC motor
  • the impeller 14 has a valve body 20 which, in the closed position (not shown), bears against the seal 10 arranged on the inside of the pump chamber 22 and thus securely closes the passage of the pump.
  • a further seal 12 is also provided on the pump cover 16 for sealing.
  • valve body 20 and the seal 10 form the valve 4.
  • the valve body 20 is firmly connected to the impeller 14 and in particular is formed in one piece, for example from plastic.
  • the impeller 14 also has a thread 8 having a spindle gear, which is in engagement with the shaft 6 and allows, depending on the direction of rotation of the shaft 6, the impeller 14 with the valve body 20 to be moved from the open to the closed position or vice versa .
  • the spindle gear (not shown) converts the Gear 8, the rotary movement of the shaft 6 in a coaxial to the shaft 6, linear, rotational direction-dependent back and forth movement of the valve body 20.
  • valve 4 is opened by actuating the motor 18, whereupon the transmission 8 converts the rotary movement of the shaft 6 into a linear displacement of the valve body 20 from the closed position to the position shown in FIG Fig. 1 shown open position takes place.
  • a stop (not shown) stops this movement.
  • the control of the dishwasher detects that this movement is blocked by the stop and then ends this process.
  • liquid can be conveyed by driving the impeller 4.
  • the motor 18 is driven in the opposite direction, so that the valve body 20 is moved from the open to the closed position until this movement is again limited by a stop and is detected by the control.

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)

Claims (11)

  1. Appareil ménager à circulation d'eau, notamment lave-vaisselle ou lave-linge, comprenant au moins une pompe (2) en liaison avec un système de conduites de l'appareil ménager à circulation d'eau, laquelle est en liaison avec un moteur (18) et avec une vanne (4) comprenant un corps de vanne (20) axialement déplaçable, lequel est disposé sur la roue de pompe de la pompe (2), dans lequel appareil ménager le moteur (18) peut fonctionner dans deux sens et la vanne (4) s'ouvre ou se ferme en fonction du sens de rotation du moteur (18), caractérisé en ce que la roue de pompe de la pompe (2) est disposée de manière axialement déplaçable conjointement avec le corps de vanne (20) de la vanne (4).
  2. Appareil ménager à circulation d'eau selon la revendication 1, caractérisé en ce que le moteur (18) est en liaison active avec la vanne (4).
  3. Appareil ménager à circulation d'eau selon la revendication 1 ou 2, caractérisé en ce que la vanne (4) comprend un corps de vanne (20) déplaçable entre une position ouverte et une position fermée.
  4. Appareil ménager à circulation d'eau selon la revendication 3, caractérisé en ce que le corps de vanne (20) est déplaçable coaxialement le long d'un arbre (6) reliant le moteur (18) et la pompe (2).
  5. Appareil ménager à circulation d'eau selon l'une quelconque des revendications précédentes, caractérisé en ce que le moteur (18) et la vanne (4) sont reliés entre eux au moyen d'une transmission (8).
  6. Appareil ménager à circulation d'eau selon la revendication 5, caractérisé en ce que la transmission (8) comprend une transmission à broche.
  7. Appareil ménager à circulation d'eau selon l'une quelconque des revendications précédentes, caractérisé en ce que le moteur (18) est un moteur BLDC ou BLAC.
  8. Appareil ménager à circulation d'eau selon la revendication 7, caractérisé en ce que le moteur (18) est en liaison avec une commande de l'appareil ménager à circulation d'eau de manière à ce qu'au moins une vanne (4) fermée soit saisie.
  9. Appareil ménager à circulation d'eau selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une conduite de sortie de l'appareil ménager à circulation d'eau est disposée en dessous d'un fond de cuve de lavage de l'appareil ménager à circulation d'eau.
  10. Appareil ménager à circulation d'eau selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un joint (10) coopérant avec le corps de vanne (20) est disposé sur un couvercle (16) de la pompe (2).
  11. Pompe comprenant une vanne pour un appareil ménager à circulation d'eau selon l'une quelconque des revendications précédentes.
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 EP2055958A2 (fr) 2009-05-06
EP2055958A3 EP2055958A3 (fr) 2013-02-27
EP2055958B1 true 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)

Families Citing this family (8)

* 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
DE102016203747B3 (de) * 2016-03-08 2017-05-11 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Steuerung
EP3495547B1 (fr) * 2017-12-11 2020-08-26 Vestel Elektronik Sanayi ve Ticaret A.S. Pompe pour machine à laver, machine à laver et procédé
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
KR102555838B1 (ko) 2018-07-19 2023-07-13 엘지전자 주식회사 세탁기

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Publication number Priority date Publication date Assignee Title
GB876839A (en) * 1959-07-27 1961-09-06 Gen Motors Corp Improvements in dishwashing machines
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
DE602005008744D1 (de) 2005-09-23 2008-09-18 Coprecitec Sl Entleerungspumpe eines Haushaltsgerätes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
DE102007052082A1 (de) 2009-05-07
EP2055958A2 (fr) 2009-05-06
ES2813907T3 (es) 2021-03-25
CN101424029A (zh) 2009-05-06
EP2055958A3 (fr) 2013-02-27
PL2055958T3 (pl) 2021-04-06

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