EP0736626A2 - Integrierte Vorrichtung zur Umwälzung von Wasser mit zwei unabhängigen Pumpen und einem gemeinsamen Filter für Waschmaschinen oder dergleichen - Google Patents

Integrierte Vorrichtung zur Umwälzung von Wasser mit zwei unabhängigen Pumpen und einem gemeinsamen Filter für Waschmaschinen oder dergleichen Download PDF

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Publication number
EP0736626A2
EP0736626A2 EP95202612A EP95202612A EP0736626A2 EP 0736626 A2 EP0736626 A2 EP 0736626A2 EP 95202612 A EP95202612 A EP 95202612A EP 95202612 A EP95202612 A EP 95202612A EP 0736626 A2 EP0736626 A2 EP 0736626A2
Authority
EP
European Patent Office
Prior art keywords
housings
filter
communication
filter housing
suction chamber
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
EP95202612A
Other languages
English (en)
French (fr)
Other versions
EP0736626B1 (de
EP0736626A3 (de
Inventor
Silvano Fumagalli
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.)
Candy SpA
Original Assignee
Candy SpA
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Filing date
Publication date
Application filed by Candy SpA filed Critical Candy SpA
Publication of EP0736626A2 publication Critical patent/EP0736626A2/de
Publication of EP0736626A3 publication Critical patent/EP0736626A3/de
Application granted granted Critical
Publication of EP0736626B1 publication Critical patent/EP0736626B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D06F39/083—Liquid discharge or recirculation arrangements
    • D06F39/085—Arrangements or adaptations 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/10—Filtering arrangements

Definitions

  • the present invention concerns an integral flow directing filter unit for washing machines and the like.
  • a single pump is used in combination with a diverting valve to convey the wash liquid to a drainage outlet or alternatively to a recirculation path.
  • two separate pumps are utilised to convey the washing liquid respectively to a drainage outlet or into the recirculation path.
  • the first approach necessitates the use of a diverting valve which must satisfy the requirement of providing a perfect seal at the diversion point, failing which, after repeated operation liquid lost through the drain results in the gradual emptying of the washing vessel during recirculation, with the risk of failure of the washing machine due to insufficient residual liquid in the washing vessel.
  • the dual hydraulic circuit does not allow the use of an appropriate single filter acting both in the drainage and the recirculation circuit.
  • the dual hydraulic circuit also removes a certain quantity of water from the washing circuit which can be considered lost for washing purpose.
  • the integral flow-directing unit with two independent pumps and a common filter which is the subject of the present invention provides a filter and a pair of structurally independent pumping means combined in a single monobloc structure.
  • the unit requires a single mechanical support rather than separate supports for separate functional units.
  • the unit has a single attachment on the body for connecting the wash vessel directly to the unit so as to reduce pipework to a minimum, and consequently to reduce also the volume of liquid which is not directly involved in the washing process.
  • the design of the unit is such that it can be made by moulding plastics materials using relatively simple methods with a reduced number of dies and related operations.
  • a first part of the unit is made as a housing body for the pumps which are separated by a common delivery chamber communicating with a second part of the unit in which a housing for a filtration element is formed.
  • This can be made in various ways, such as a barrier filter, in alignment with a self cleaning circuit with a filter opening, or as a conventional mesh filter.
  • Brackets are formed integrally with the body to join the unit to the moving part of the washing machine.
  • the integral flow directing unit comprises a moulded body 1 in plastics material, a removable filter 2 with a front closure plug 3 and two motor units 4, 5 which drive the pump impeller 6, provided with flanges 7, 8 for coupling to the body 1 and closing the associated impeller housings.
  • Two portions can be essentially distinguished in the unitary body 1.
  • a first portion forms two axially aligned cylindrical housings, open at their outer ends, with annular flanges respectively 9, 10 for coupling to respective flanges 7, 8 of the motor units.
  • Each of the two housings comprises the body of a centrifugal pump with an impeller 6, driven respectively by the two motor units 4, 5 and a peripheral delivery outlet respectively 11, 12 and an axial intake opening one of which 30, visible in Figure 1, allows the two housings to communicate with a chamber located axially between them which opens into a cylindrical filter housing 14 to the peripheral wall of which is connected an intake opening 15.
  • the body 1 is provided on the outer sides of the filter housing 14 with two mounting brackets 16, 17 reinforced with ribs and having bosses 18, 19 for self-tapping screws.
  • Figures 2 to 5 represent various views and sections of the body 1 to show more clearly the structural characteristics and its formation using a relatively simply constructed mould with a reduced number of moving parts.
  • the filter housing is constructed from two axially aligned cylindrical bodies 20, 21 (Figure 5) the outermost one 20, of greater diameter, being connected to the other by means of a shoulder 22 which has an annular ridge 23 for cooperation with a seal 24 (Figure 1) on the filter plug to ensure sealing of the filter housing.
  • the body 20 comprises a plug housing and has on its edge two opposing retaining teeth 25, 26 for the engagement and bayonet fitting of the plug 3 which has in its turn ribs (as 25, Figure 1) for cooperation with the teeth 25, 26.
  • the inner body 21 constitutes the filter housing and the intake opening 15 is joined to and opens into its periphery.
  • the body 21 Internally the body 21 is joined to and communicates with a suction chamber 27 positioned between the two impeller housings 28, 29 and communicates with these through two apertures 30, 31.
  • the filter and plug housing, the suction chamber and the front part of the mounting brackets 16, 17 can be easily obtained with a die closed in the direction indicated by the arrow 32 which is provided with a pair of retractable teeth to form the necessary undercuts for the teeth 25, 26.
  • the impeller housings 28, 29 and the associated flanges 9, 10 having sites for screw engagement, and possible registration pins are easily made using two opposing mould dies which are closed in the direction indicated by the arrows 33, 34.
  • the impeller housings 28, 29 of a generically cylindrical shape, communicate with the suction chamber positioned between them via the axial apertures 30, 31.
  • the delivery outlets 11, 12 are connected to their periphery.
  • the liquid is sucked from the inlet 15, enters into the filter chamber through the filter, passes into the suction chamber 27 and from there to the impeller housing corresponding to the activated motor from where it is expelled through the associated outlet 11 or 12 to be directed to the drainage outlet or into the recirculation circuit.
  • outlets 11, 12 and inlet 15 are advantageously positioned along parallel axes, with a degree of inclination relative to the axis of the filter chamber.
  • a fifth die closed in the direction of the arrow 36 allows the formation of the lower part of the body 1, which is undercut with respect to the pump bodies and associated flanges 9, 10.
  • the upper exterior part of the inlet 15 is formed by a die closed in the direction indicated by the arrow 37.
  • the unitary body 1 is completed by attaching the two flanged motor units 4 and 5.
  • the rotor housing is externally enclosed by the extensions of field poles 42, 43 which extend in two stator columns closed with a yoke.
  • stator columns On the stator columns are two electrical excitation coils supplied by the alternating mains voltage.
  • a conventional mesh or labyrinth filter may be substituted for the diaphragm filter shown in Figure 2.
  • the structure of the flow directing unit can be simplified by eliminating the filter housing completely and attaching the intermediate suction chamber directly to the inlet 15, in this case positioned at an angle or in relative opposition to the outlets 11 and 12.
  • the filter housing is replaced by the inlet 15, the diameter of which must be sufficient to form at its end, and as an extension of itself, an intake chamber with dimensions suitable to keep the pressure drop between predetermined limits for a predetermined flow rate of liquid.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
EP95202612A 1995-04-05 1995-09-28 Integrierte Vorrichtung zur Umwälzung von Wasser mit zwei unabhängigen Pumpen und einem gemeinsamen Filter für Waschmaschinen oder dergleichen Expired - Lifetime EP0736626B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1995MI000236U IT236788Y1 (it) 1995-04-05 1995-04-05 Gruppo integrale di deviazione di flusso a due pompe indipendentie filtro comune per lavatrici e simili
ITMI950236U 1995-04-05

Publications (3)

Publication Number Publication Date
EP0736626A2 true EP0736626A2 (de) 1996-10-09
EP0736626A3 EP0736626A3 (de) 1997-10-29
EP0736626B1 EP0736626B1 (de) 2001-07-11

Family

ID=11370488

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95202612A Expired - Lifetime EP0736626B1 (de) 1995-04-05 1995-09-28 Integrierte Vorrichtung zur Umwälzung von Wasser mit zwei unabhängigen Pumpen und einem gemeinsamen Filter für Waschmaschinen oder dergleichen

Country Status (3)

Country Link
EP (1) EP0736626B1 (de)
DE (1) DE69521681T2 (de)
IT (1) IT236788Y1 (de)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2764312A1 (fr) * 1997-06-10 1998-12-11 Bosch Siemens Hausgeraete Appareil menager, en particulier machine a laver le linge ou lave-vaisselle, comportant une ouverture de montage ou d'entretien dans sa carrosserie
FR2818671A1 (fr) * 2000-12-26 2002-06-28 Ciapem Dispositif de filtration pour un lave-linge
FR2954783A1 (fr) * 2009-12-30 2011-07-01 Fagorbrandt Sas Procede de commande en fonctionnement d'une machine a secher le linge et machine a secher le linge associee.
KR200461049Y1 (ko) 2007-10-22 2012-06-22 삼성전자주식회사 펌프와 이를 구비하는 세탁기
KR101332286B1 (ko) * 2007-04-17 2013-11-22 삼성전자주식회사 세탁기
EP2684509A1 (de) * 2012-07-12 2014-01-15 FagorBrandt SAS Waschmaschine mit Wasch- und/oder Spülwasserbehälter
EP2703547A1 (de) * 2012-08-29 2014-03-05 Electrolux Home Products Corporation N.V. Waschmaschine
EP2703548A1 (de) * 2012-08-29 2014-03-05 Electrolux Home Products Corporation N.V. Waschmaschine und Verfahren zum Waschen von Wäsche in einer Waschmaschine
EP2746447A1 (de) * 2012-12-21 2014-06-25 Electrolux Home Products Corporation N.V. Waschmaschine mit Ablassverteiler, umfassend eine Pumpenbaugruppe
KR101460134B1 (ko) * 2007-07-12 2014-11-10 삼성전자 주식회사 세탁기
WO2016101993A1 (en) * 2014-12-23 2016-06-30 Electrolux Appliances Aktiebolag Laundry drying apparatus having a pump for draining liquid
CN105986427A (zh) * 2015-01-27 2016-10-05 青岛海尔洗衣机有限公司 一种洗衣机双头排水泵
WO2017137174A1 (de) * 2016-02-10 2017-08-17 BSH Hausgeräte GmbH Wäschepflegegerät mit einer pumpe
US9777426B2 (en) 2012-08-29 2017-10-03 Electrolux Home Products Corporation N.V. Laundry washing machine
EP3252203A4 (de) * 2015-01-27 2017-12-27 Qingdao Haier Washing Machine Co., Ltd. Installationsschwingungsdämpfer für zweiköpfige abflusspumpe einer waschmaschine
CN108603324A (zh) * 2016-02-10 2018-09-28 Bsh家用电器有限公司 具有碱液泵的洗涤物护理器具
WO2023236749A1 (zh) * 2022-06-09 2023-12-14 青岛海尔洗涤电器有限公司 双泵总成及具有该双泵总成的衣物处理设备
WO2024169424A1 (zh) * 2023-02-15 2024-08-22 重庆海尔洗衣机有限公司 双水路动力装置及洗涤设备
WO2024213048A1 (zh) * 2023-04-14 2024-10-17 青岛海尔洗涤电器有限公司 一种双头动力泵及衣物处理设备

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016201972B3 (de) * 2016-02-10 2017-03-02 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Laugenpumpe

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB671114A (en) * 1949-02-28 1952-04-30 Edward Aidan Creswick A method of, and apparatus for cleaning garments or fabrics
FR1336973A (fr) * 1962-10-03 1963-09-06 Constructa Werke Gmbh Pompe double destinée particulièrement à une machine à laver et à centrifuger, fonctionnant en courant continu
US3727435A (en) * 1971-12-27 1973-04-17 Gen Motors Corp Self-cleaning lint filter for a recirculating clothes washer
IT1256103B (it) * 1992-11-12 1995-11-28 Candy Spa Gruppo di filtraggio e deviazione di flusso per lavatrice a ricircolo
JPH0716389A (ja) * 1993-07-05 1995-01-20 Matsushita Electric Ind Co Ltd 洗濯機

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2764312A1 (fr) * 1997-06-10 1998-12-11 Bosch Siemens Hausgeraete Appareil menager, en particulier machine a laver le linge ou lave-vaisselle, comportant une ouverture de montage ou d'entretien dans sa carrosserie
FR2818671A1 (fr) * 2000-12-26 2002-06-28 Ciapem Dispositif de filtration pour un lave-linge
KR101332286B1 (ko) * 2007-04-17 2013-11-22 삼성전자주식회사 세탁기
KR101460134B1 (ko) * 2007-07-12 2014-11-10 삼성전자 주식회사 세탁기
KR200461049Y1 (ko) 2007-10-22 2012-06-22 삼성전자주식회사 펌프와 이를 구비하는 세탁기
FR2954783A1 (fr) * 2009-12-30 2011-07-01 Fagorbrandt Sas Procede de commande en fonctionnement d'une machine a secher le linge et machine a secher le linge associee.
EP2341183A1 (de) * 2009-12-30 2011-07-06 FagorBrandt SAS Betriebsverfahren eines Wäschetrockners und dieses Verfahren anwendender Wäschetrockner
EP2684509A1 (de) * 2012-07-12 2014-01-15 FagorBrandt SAS Waschmaschine mit Wasch- und/oder Spülwasserbehälter
FR2993162A1 (fr) * 2012-07-12 2014-01-17 Fagorbrandt Sas Machine a laver comprenant un reservoir d'eau de lavage et/ou de rincage
CN104583482A (zh) * 2012-08-29 2015-04-29 伊莱克斯家用产品股份有限公司 洗衣机
US9777426B2 (en) 2012-08-29 2017-10-03 Electrolux Home Products Corporation N.V. Laundry washing machine
WO2014032944A3 (en) * 2012-08-29 2014-04-17 Electrolux Home Products Corporation N.V. Laundry washing machine
EP2703548A1 (de) * 2012-08-29 2014-03-05 Electrolux Home Products Corporation N.V. Waschmaschine und Verfahren zum Waschen von Wäsche in einer Waschmaschine
EP2703547A1 (de) * 2012-08-29 2014-03-05 Electrolux Home Products Corporation N.V. Waschmaschine
WO2014032929A1 (en) * 2012-08-29 2014-03-06 Electrolux Home Products Corporation N.V. Laundry washing machine and method for washing laundry in a laundry washing machine
CN110565337A (zh) * 2012-08-29 2019-12-13 伊莱克斯家用产品股份有限公司 洗衣机
US9903065B2 (en) 2012-08-29 2018-02-27 Electrolux Home Products Corporation N.V. Laundry washing machine
EP2746447A1 (de) * 2012-12-21 2014-06-25 Electrolux Home Products Corporation N.V. Waschmaschine mit Ablassverteiler, umfassend eine Pumpenbaugruppe
WO2016101993A1 (en) * 2014-12-23 2016-06-30 Electrolux Appliances Aktiebolag Laundry drying apparatus having a pump for draining liquid
AU2014415237B2 (en) * 2014-12-23 2020-05-21 Electrolux Appliances Aktiebolag Laundry drying apparatus having a pump for draining liquid
EP3252203A4 (de) * 2015-01-27 2017-12-27 Qingdao Haier Washing Machine Co., Ltd. Installationsschwingungsdämpfer für zweiköpfige abflusspumpe einer waschmaschine
EP3252206A4 (de) * 2015-01-27 2018-07-04 Qingdao Haier Washing Machine Co., Ltd. Zweiköpfige entwässerungspumpe einer waschmaschine
CN105986427A (zh) * 2015-01-27 2016-10-05 青岛海尔洗衣机有限公司 一种洗衣机双头排水泵
WO2017137174A1 (de) * 2016-02-10 2017-08-17 BSH Hausgeräte GmbH Wäschepflegegerät mit einer pumpe
CN108603324A (zh) * 2016-02-10 2018-09-28 Bsh家用电器有限公司 具有碱液泵的洗涤物护理器具
RU2697102C1 (ru) * 2016-02-10 2019-08-12 Бсх Хаусгерете Гмбх Бытовой прибор для ухода за бельем с насосом
CN108603324B (zh) * 2016-02-10 2021-01-05 Bsh家用电器有限公司 具有碱液泵的洗涤物护理器具
WO2023236749A1 (zh) * 2022-06-09 2023-12-14 青岛海尔洗涤电器有限公司 双泵总成及具有该双泵总成的衣物处理设备
JP2025518391A (ja) * 2022-06-09 2025-06-12 青島海爾洗滌電器有限公司 ダブルポンプアセンブリ及び当該ダブルポンプアセンブリを備える衣類処理装置
WO2024169424A1 (zh) * 2023-02-15 2024-08-22 重庆海尔洗衣机有限公司 双水路动力装置及洗涤设备
WO2024213048A1 (zh) * 2023-04-14 2024-10-17 青岛海尔洗涤电器有限公司 一种双头动力泵及衣物处理设备

Also Published As

Publication number Publication date
EP0736626B1 (de) 2001-07-11
ITMI950236U1 (it) 1996-10-05
IT236788Y1 (it) 2000-08-17
DE69521681D1 (de) 2001-08-16
DE69521681T2 (de) 2003-02-13
ITMI950236V0 (it) 1995-04-05
EP0736626A3 (de) 1997-10-29

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