EP3297510B1 - Pumpvorrichtung für ein haushaltsgerät - Google Patents

Pumpvorrichtung für ein haushaltsgerät Download PDF

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Publication number
EP3297510B1
EP3297510B1 EP16727144.4A EP16727144A EP3297510B1 EP 3297510 B1 EP3297510 B1 EP 3297510B1 EP 16727144 A EP16727144 A EP 16727144A EP 3297510 B1 EP3297510 B1 EP 3297510B1
Authority
EP
European Patent Office
Prior art keywords
impeller
pump device
drive
pressure chamber
pump
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
EP16727144.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3297510A1 (de
Inventor
Alexander Schlitzer
Necdet Patel
Kurt Richter
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 PL16727144T priority Critical patent/PL3297510T3/pl
Publication of EP3297510A1 publication Critical patent/EP3297510A1/de
Application granted granted Critical
Publication of EP3297510B1 publication Critical patent/EP3297510B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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
    • 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
    • A47L15/4202—Water filter means or strainers

Definitions

  • the present invention relates to a pump device for a household appliance, in particular a washing machine or a dishwasher for laundry or crockery.
  • a washing machine or a dishwasher for laundry or crockery.
  • a water circulation system wherein the cleaning fluid or the process water is supplied to the washing process in a repeated manner.
  • the efficiency of the washing process is significantly improved by multiple transport of dirt.
  • placing another pump for this additional process always adds overhead.
  • the publication DE1460948 A1 comprises a pump unit for washing machines for selectively conveying the liquid to be pumped by changing the direction of rotation of the pump shaft.
  • two pump wheels are arranged, at least one of which is provided with axial blades, each impeller is surrounded by its own, provided with two nozzle pump housing, and wherein the arrangement is such that in each rotational direction in each case only one impeller fluid promotes.
  • US2010 / 139718 and US2643614 each discloses a pump device for a household appliance with a drive and a first impeller and a second impeller, each comprising a freewheel drive.
  • the object is achieved with a pumping device, wherein the pumping device has a drive with a first impeller for operating the pumping device in a first operating state with a first conveying direction to pump fluid from the household appliance, and with a second impeller for operating the pumping device in a second Operating state with a second conveying direction to pump fluid within the household appliance comprises, wherein, between the drive and the first impeller, a first freewheel drive and between the drive and the second impeller, a second freewheel drive are arranged in such a manner in dependence of the first or the second Operating state always only the first impeller or drive only the second impeller.
  • An impeller in the sense of this description comprises in particular a propeller enclosed by a ring-shaped or tubular housing.
  • first impeller and the second impeller are formed the same.
  • a coupling or connection between the first impeller and the drive is free from acting in two opposite directions of rotation clutch, in particular free from acting in two opposite directions of rotation and electromagnetically operating clutch.
  • a coupling or connection between the second impeller and the drive is free from acting in two opposite directions of rotation clutch, in particular free from acting in two opposite directions of rotation and electromagnetically operating clutch.
  • the first impeller and the second impeller are connected to the drive via a common drive axle.
  • the connection between the drive and the drive axle can be formed particularly easily and at low cost, since no second Drive axle is provided with the drive. This additionally reduces the installation effort of the pumping device during production.
  • the first impeller and the second impeller are arranged on opposite sides of the drive.
  • the pumping device comprises a first pressure chamber which is assigned to the first impeller.
  • a flow of the wash liquor out of the first pressure chamber is generated in the sewage network.
  • the pumping device comprises a second pressure chamber, which is assigned to the second impeller.
  • a flow of the wash liquor is generated out of the second pressure chamber.
  • the wash liquor can then be re-supplied to a washing process in the household appliance.
  • the pumping device has a common suction chamber for the first pressure chamber and the second pressure chamber. In this way, only one connecting line between the pumping device and a fluid container of the household appliance is necessary. During operation of the pumping device, fluid is sucked from the fluid container into the suction chamber of the pumping device via this connecting line. It does not matter which of the two impellers is operated.
  • a first fluid connection is formed within the pumping device from the suction chamber to the first pressure chamber and a second fluid connection from the suction chamber to the second pressure chamber.
  • a first fluid connection is formed within the pumping device from the suction chamber to the first pressure chamber and a second fluid connection from the suction chamber to the second pressure chamber.
  • the first fluid connection is designed as a suction nozzle.
  • the suction chamber is arranged in the axial direction directly in front of the first pressure chamber. The flow from the suction chamber into the first pressure chamber is determined by the cross section of the suction nozzle.
  • the suction chamber is separated from the first pressure chamber only by a wall, wherein the wall has an opening. This opening is advantageously designed as a suction nozzle.
  • the suction nozzle protrudes into the suction chamber.
  • the second fluid connection is formed in the housing of the pumping device as a channel.
  • this second fluid connection extends in the axial direction over the dimensions of the pumping device from the suction chamber to the second pressure chamber.
  • the second fluid connection opens centrally with respect to the impeller of the second pressure chamber.
  • a common filter device for the first fluid connection to the first pressure chamber and for the second fluid connection to the second pressure chamber is arranged in the suction chamber.
  • This filter device may, for example, have different passage openings for the first and the second fluid connection.
  • the filter device is replaceable.
  • the replaceable filter device can be designed here as a limescale filter, as a lint filter, foreign body trap or as any other filter device.
  • the filter device is arranged accessible to a user.
  • the filter device has properties that allow a user to easily remove them from the domestic appliance, for example by means of a plug or a screw connection, and to replace a clogged or defective filter device with a new filter device.
  • the filter device is manually interchangeable, without having to use a special tool for this purpose.
  • the filter device can be made accessible to a user by an externally accessible control flap.
  • the pumping device is designed to be operated in a third operating state, wherein the first pressure chamber is formed fluidly connected to the second pressure chamber.
  • a third operating state wherein the first pressure chamber is formed fluidly connected to the second pressure chamber.
  • the first impeller is adapted to be operated in a first direction of rotation and the second impeller is formed to be operated in a second direction of rotation, which is opposite to the first direction of rotation.
  • the drive comprises a brushless DC motor (BL DC motor).
  • BL DC motor brushless DC motor
  • the pumping device comprises a closure for cleaning or maintenance purposes.
  • This closure may be formed here as an alternative or in addition to the already mentioned maintenance or control flap of the household appliance.
  • the pumping device is designed to drive the second impeller via a mechanical movement of the first impeller.
  • This makes it possible, for example, in addition to the already mentioned closure, to provide a functionality of the pump device which provides complete and complete cleaning of the pump device, the first pressure chamber, the second pressure chamber, the first impeller and the second impeller.
  • this could be done by a mechanical connection of the first and the second impeller to realize a power transmission from the first impeller to the second impeller or vice versa.
  • the operation of the first and second freewheel drive could be temporarily suspended to complete the cleaning of the pumping device. Following the cleaning, the mechanical connection could be released again and the original state of the pumping device would be restored.
  • FIG. 1 shows a schematic representation of a household appliance 100, for example in the form of a washing machine, with a pumping device 103.
  • a fluid container 101 for example in the form of a tub, arranged to receive a fluid, such as a cleaning liquid or a Lye liquid, and a laundry is formed.
  • the pump device 103 which is arranged directly under the fluid container 101, is designed to pump the fluid or the lye liquid out of the fluid container 101 into a sewage network 104.
  • the pump device 103 is designed to circulate the fluid or the lye liquid out of the fluid container 101 within the household appliance 100.
  • the domestic appliance 100 is designed to pump liquor liquid which has been removed from the fluid container 101, as required, back into the fluid container 101, in order to make the liquid again available to a washing process.
  • the FIG. 2 shows a schematic representation of a pumping device 103.
  • the pumping device 103 includes a drive 105, which is designed for example as a brushless DC motor (BLDC motor).
  • the drive 105 is powered by a power supply 108.
  • the drive 105 is connected to a first impeller 107 and a second impeller 109.
  • the first impeller 107 and the second impeller 109 in this case have a common drive axis 106, wherein in each case between the drive 105 and each impeller, ie between the drive 105 and the first impeller 107 and between the drive 105 and the second impeller 109 are each arranged on the common drive axle 106, a first freewheel drive 119 and a second freewheel drive 121.
  • the first freewheel drive 119 and the second freewheel drive 121 which are respectively assigned to the first impeller 107 and the second impeller 109, are designed such that the rotation of the common drive axle 106 by the drive 105 in a first rotational direction drives only the first impeller 107, wherein the second impeller 109 is not driven by its associated freewheel drive 121.
  • the drive 105 is operated in a second rotational direction opposite to the first rotational direction, and the common drive shaft 106 connected to the drive 105 is moved in the corresponding second rotational direction, only the second impeller 109 becomes operated via the drive 105.
  • the first impeller 107 is arranged by means of the first freewheel drive 119 on the common drive axle 106, this does not rotate with rotation in the second direction of rotation. Consequently, depending on the direction of rotation, with which the drive 105 drives the common drive axle 106, only one of the two impellers, ie either the first impeller 107 when driving the common drive axle 106 in a first direction of rotation or the second impeller 109 when driving the common Drive axle 106 in the opposite or the second direction of rotation, operated.
  • the pumping device 103 comprises a first pressure chamber 113, which corresponds to the first Impeller 107 is assigned, and a second pressure chamber 115, which is associated with the second impeller 109.
  • the first pressure chamber 113 is connected via a first fluid connection 125 the suction chamber 124 of the pumping device 103 supplied with fluid.
  • the first pressure chamber 113 is assigned to the first impeller 107 or the first impeller 107 is arranged in the first pressure chamber 113.
  • a second fluid connection 126 of the Suction chamber 124 of the pumping device 103 realized with the second pressure chamber 115 of the pumping device 103. Since the second impeller 109 is located within the second pressure chamber 115, the rotation of the second impeller 109 causes a flow of the liquor liquid in the second conveying direction out of the second pressure chamber 115 as a consequence. For example, the liquor liquid can subsequently be supplied to a washing process in the domestic appliance 100 again.
  • the function of the pumping device 103 and the conveying direction of the pumping device 103 can be controlled.
  • a common filter device for the first fluid connection 125 to the first pressure chamber 113 and for the second fluid connection 126 to the second pressure chamber 115 is arranged.
  • This filter device may, for example, have different passage openings for the first and the second fluid connection.
  • the filter device can be replaced.
  • the replaceable filter device can be designed here as a limescale filter, as a lint filter, foreign body trap or as any other filter device.
  • the pump device 103 has a closure 123 for cleaning or maintenance of the pump device 103.
  • This closure 123 can be attached to a housing of the pump device 103, for example, by means of a thread or other simple attachment.
  • Such a closure 123 allows improved accessibility of the first impeller 109 to cleaning or to Maintenance purposes. It would also be conceivable, for example, to arrange a further closure on the pump device 103 in order to allow access to the second impeller 109 within the second pressure chamber 115.
  • independent and independently arranged fluid connections between the fluid container 101 and the first pressure chamber 113 and the second pressure chamber 115 may be provided.
  • the household appliance 100 is particularly susceptible to disturbances caused by blockages. In the event of contamination or clogging of the pumping device 103 thus not necessarily both fluid connections are blocked and consequently not both pressure chambers disturbed. As a consequence, both operating states would not fail and limited operation of the household appliance 100 would still be possible.
  • both the fluid connection for the first pressure chamber 113 and the fluid connection for the second pressure chamber 115 each have interchangeable filter devices. These are arranged to be accessible to users of the household appliance.
  • the filter devices have properties that allow a user to easily remove them from the domestic appliance 100, for example by a plug or a screw connection, and to replace a clogged or defective filter device with new filter devices.
  • the filter devices are manually interchangeable without having to use a special tool for this purpose.
  • the filter devices could be made accessible to a user by an externally accessible control flap.

Landscapes

  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Textile Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Washing And Drying Of Tableware (AREA)
EP16727144.4A 2015-05-22 2016-05-20 Pumpvorrichtung für ein haushaltsgerät Active EP3297510B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16727144T PL3297510T3 (pl) 2015-05-22 2016-05-20 Urządzenie pompujące do urządzenia gospodarstwa domowego

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015209529.0A DE102015209529A1 (de) 2015-05-22 2015-05-22 Haushaltsgerät
PCT/EP2016/061462 WO2016188915A1 (de) 2015-05-22 2016-05-20 Pumpvorrichtung für ein haushaltsgerät

Publications (2)

Publication Number Publication Date
EP3297510A1 EP3297510A1 (de) 2018-03-28
EP3297510B1 true EP3297510B1 (de) 2019-04-17

Family

ID=56101427

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16727144.4A Active EP3297510B1 (de) 2015-05-22 2016-05-20 Pumpvorrichtung für ein haushaltsgerät

Country Status (7)

Country Link
EP (1) EP3297510B1 (ru)
CN (1) CN107660243B (ru)
DE (1) DE102015209529A1 (ru)
PL (1) PL3297510T3 (ru)
RU (1) RU2672479C1 (ru)
TR (1) TR201906553T4 (ru)
WO (1) WO2016188915A1 (ru)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102592650B1 (ko) 2016-12-16 2023-10-23 엘지전자 주식회사 의류처리장치
CN106948126B (zh) * 2017-04-20 2022-04-22 厦门米海智能科技股份有限公司 一种清洗机
DE102021119676A1 (de) 2021-07-29 2023-02-02 Miele & Cie. Kg Pumpenvorrichtung für ein Haushaltsgerät, umfassend eine erste Pumpe und eine zweite Pumpe

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2643614A (en) * 1949-09-28 1953-06-30 Gen Electric Motor-driven dual pumping unit
DE1460948A1 (de) 1962-03-16 1969-04-24 Hanning Robert Pumpenaggregat fuer Waschmaschinen
DE3704039A1 (de) * 1987-02-10 1988-08-18 Bosch Siemens Hausgeraete Trommelwaschmaschine
IT222241Z2 (it) * 1990-11-15 1995-02-06 Zanussi Elettrodomestici Lavastoviglie con gruppo di pompaggio a motore reversibile
JP4952375B2 (ja) * 2007-05-23 2012-06-13 株式会社明電舎 レジスト除去方法及びその装置
US20100139718A1 (en) * 2008-12-08 2010-06-10 Electrolux Home Products, Inc. Pump device for a dishwasher, and associated apparatus
DE102011050229B4 (de) * 2011-05-10 2016-04-28 Miele & Cie. Kg Wasserweiche
CN103244435A (zh) * 2013-06-03 2013-08-14 窦敏江 新型高效率气动水泵

Non-Patent Citations (1)

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

Also Published As

Publication number Publication date
WO2016188915A1 (de) 2016-12-01
CN107660243B (zh) 2020-02-14
RU2672479C1 (ru) 2018-11-15
TR201906553T4 (tr) 2019-05-21
CN107660243A (zh) 2018-02-02
EP3297510A1 (de) 2018-03-28
DE102015209529A1 (de) 2016-11-24
PL3297510T3 (pl) 2019-09-30

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