WO2000028878A1 - Pompe de circulation, en particulier pour un appareil domestique a circulation d'eau - Google Patents

Pompe de circulation, en particulier pour un appareil domestique a circulation d'eau Download PDF

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Publication number
WO2000028878A1
WO2000028878A1 PCT/EP1999/008294 EP9908294W WO0028878A1 WO 2000028878 A1 WO2000028878 A1 WO 2000028878A1 EP 9908294 W EP9908294 W EP 9908294W WO 0028878 A1 WO0028878 A1 WO 0028878A1
Authority
WO
WIPO (PCT)
Prior art keywords
pump
heating device
housing
water
pump housing
Prior art date
Application number
PCT/EP1999/008294
Other languages
German (de)
English (en)
Inventor
Wolfram THÖRMER
Original Assignee
Miele & Cie. Gmbh & Co.
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7887803&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2000028878(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Miele & Cie. Gmbh & Co. filed Critical Miele & Cie. Gmbh & Co.
Priority to AT99957271T priority Critical patent/ATE270521T1/de
Priority to EP99957271A priority patent/EP1047334B2/fr
Priority to PL341002A priority patent/PL192963B1/pl
Priority to DE59909911T priority patent/DE59909911D1/de
Publication of WO2000028878A1 publication Critical patent/WO2000028878A1/fr

Links

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
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid 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
    • A47L15/4285—Water-heater 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 
    • D06F39/04—Heating 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

Definitions

  • Circulation pump in particular for a water-bearing household appliance
  • the invention relates to a circulating pump, in particular for a water-carrying household appliance, such as a dishwasher or washing machine, which is equipped with a rinsing container and an electrical heating device for heating the rinsing water, with a pump housing flanged to the motor housing of the pump with suction and pressure ports for those to be circulated and closed heating liquid, safety devices such as thermal switches, pressure switches or the like being provided for monitoring the liquid to be conveyed in the water circuit.
  • a circulating pump in particular for a water-carrying household appliance, such as a dishwasher or washing machine, which is equipped with a rinsing container and an electrical heating device for heating the rinsing water, with a pump housing flanged to the motor housing of the pump with suction and pressure ports for those to be circulated and closed heating liquid, safety devices such as thermal switches, pressure switches or the like being provided for monitoring the liquid to be conveyed in the water circuit.
  • the electrical heating device used for heating the washing liquid within the washing container, preferably in the trough-shaped bottom part above or below the filter screens.
  • the circulation pump which is generally designed as a centrifugal pump, is installed in an accessible manner outside the flushing tank in the base area of the household appliance. Due to the spatial separation of the pump and heating device, special care must be taken with regard to the tightness and the electrical safety of the lines and electrical connections leading out of the flushing tank.
  • an electrical resistance heater (tubular heater) is arranged on the outside of the metal part of the motor housing of the circulation pump, the waterproof motor housing together with the flanged pump housing in the washing container of the house. Holding device is housed and immersed in the washing liquid to be heated.
  • the connection lines of the electric heater are led out together with the lines of the motor from the pump housing and the flushing tank in a liquid-tight manner.
  • the heater is arranged on the inside in the motor housing.
  • the pump motor must be protected from excessive heat.
  • the heater can only indirectly heat the rinsing liquid to be circulated via the metal motor housing, which is why an increased heating power must be used.
  • the efficiency of the heating is also reduced by the heat which can only be transferred indirectly to the rinsing water.
  • the combination of heating and pump into one In the case of a heating or pump defect, the inseparable functional unit requires the complete replacement of the motor or pump, including the heating.
  • the invention poses the problem of creating a heating system for rinsing liquid combined with a circulation pump, which works effectively and saves energy, takes up little installation space and is easily accessible and easily exchangeable for servicing purposes.
  • the combination of the heating device with the pump and its arrangement according to the invention in the water flow of the pump, preferably in the pump housing, enables rapid, lossless transfer of the heat to the circulating rinsing liquid.
  • the heating system works very effectively and saves energy.
  • the flat and space-saving design of the tubular heater in the form of a spiral or solenoid coil takes up little installation space.
  • the heating is also advantageously easily accessible and easily replaceable separately from the pump. Due to the design of the heating device on the pump housing, constructive measures for the pump drive or on the electric pump motor are not necessary.
  • the combination of the heating device with the circulation pump advantageously creates the possibility of also releasably arranging the safety devices required for the water circuit of the household appliance, such as thermal switches, pressure switches, turbidity sensors or the like, also preferably detachably on the pump housing by means of plug-in or snap-in connections. In this way, a pre-testable unit can be completed.
  • FIG. 1 shows the water path in a dishwasher in a simplified form
  • FIG. 2 shows a circulation pump of the dishwasher with an open pump housing and built-in heating device for the washing liquid, in a perspective view
  • FIG. 3 shows a cover of the pump housing of the circulation pump in combination with a further embodiment of the heating device according to the invention, in longitudinal section,
  • FIG 4 shows the pump housing cover combined with the heating device in a side view.
  • a dishwasher (1) shown in FIG. 1 has a washing container (2) with two crockery baskets (3, 4) arranged one above the other, a cutlery drawer (5) being provided in a third washing level above the upper crockery basket (4).
  • the crockery baskets (3, 4) and the cutlery drawer (5) are guided in a known manner in the washing compartment (2) on runners (6).
  • a cutlery basket can also be used separately in one of the crockery baskets (3, 4).
  • the spray devices (7 to 9), which are designed as rotating spray arms, are supplied with flushing liquid by a common circulating pump (11) which is mounted in the device housing below the flushing container (2).
  • the circulation pump (11) has pressure ports (12, 13) on its pump housing (14), to which the spray arms are connected. With (15) an intake port of the circulation pump (11) is designated, with which the washing liquid for the liquid circulation is sucked out of the washing container.
  • the circulation pump (11) in the exemplary embodiment is preferably designed as a circular pump with a pump impeller (16) arranged in the pump housing (14) for the transport of the rinsing liquid.
  • other types of pumps can also be used.
  • the circulation pump (1 1) arranged outside the rinsing tank (2) can be connected to the fresh heating device (17) combined to form a pre-testable unit, but the combined building modules (pump 11, heater 17) are separately replaceable or detachable.
  • the heating device (17) is arranged in the water flow of the circulating pump (11) on the pump housing (14), preferably inside the pump housing (14) between the suction connection (15) and the pressure connection (12, 13). This arrangement is advantageous for an efficient and efficient heating device (17) that works with high efficiency without heat loss.
  • the heating device (17) works as a tubular heating element (18) around which the flushing liquid flows.
  • the tubular heating element (18) of the heating device (17) is wound in an annular manner, preferably in the form of a wound solenoid, and concentrically surrounds the pump impeller (16).
  • a tubular heating element (18) of the heating device (17) which is wound in this way is advantageously mounted in the pump housing (14) on the pump motor-side housing half (24) of the pump housing (14), the electrical connections (22) isolating and liquid-tight the pot-shaped housing wall of the pump housing (14) reach through.
  • the heating device (17) is expediently mounted on the circulation pump (11) at a distance from the walls of the pump housing (14).
  • the pump housing (14) in turn is detachably mounted on the motor housing (19) of the circulation pump (11).
  • FIGS. 3 and 4 Another advantageous arrangement is the releasable attachment of the heating device (17) in the pump housing (14) on the removable pump housing cover (23) of the circulating pump (11) according to FIGS. 3 and 4.
  • a tubular heater (18 ') is also used, which, however, as Spiral is formed, which is wound around the intake manifold (15) in the cover plane.
  • the cover (23) When the cover (23) is mounted, the spiral then lies in front of the covered pump impeller (16) so that it can rotate freely.
  • the heating device (17) is mounted on the pump (11) by inserting intermediate webs (25) at a distance from the walls of the pump housing (14) or the cover (23) (see FIG. 4).
  • the heating device (17) as a continuous flow heater could also be formed separately on the outside of the pump housing (14) as a coupling piece which can be connected to a connecting or pressure connection (12, 13) of the circulation pump (11) and which can preferably be plugged onto the connection ,
  • the water connection connections for the heating device (17) and / or their electrical line connections (22) likewise are designed to be detachable from one another. It is also possible to design part of the pump housing (14) itself as a heating device (17) and to detach this separate housing part with the rest of the pump housing, for. B. liquid-tight by screwing.
  • the conventional components or safety devices such as thermal switches (20), pressure switches (21), turbidity sensors, etc., which monitor or control the rinsing water circulation, also releasably in a liquid-tight manner on the pump housing (14), as is shown, for example, in FIG. 2 is shown.
  • the security devices could preferably be attached in a plug-in or snap-in construction, so that a structural unit that can be completely pre-tested is created. It is also conceivable to provide at least one valve device on the pump housing (14) for shutting off or optionally opening the pump pressure ports (12, 13).
  • the invention is not limited to circulation pumps in dishwashers or to centrifugal pumps.
  • the invention can also be used in pumps in washing machines or generally for electric pumps in water circuits in which liquids are to be heated quickly and in an energy-saving manner. But especially in devices where there is little space for heating and pumps and repair work u. U. must be done quickly, as z. B. is the case with devices in the laboratory or hospital area.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Cookers (AREA)
  • Washing And Drying Of Tableware (AREA)

Abstract

Pompe de circulation, en particulier pour un appareil domestique à circulation d'eau, tel qu'un lave-vaisselle ou un lave-linge, doté d'une cuve de lavage et d'un dispositif de chauffe électrique (17) destiné à chauffer l'eau de lavage, ainsi que d'un carter (14) de pompe, fixé par bride au carter de moteur de la pompe, qui possède des orifices d'aspiration et de pression (15, 12, 13) pour le liquide à chauffer et à mettre en circulation dans le circuit. Le cas échéant, des dispositifs de sécurité tels que des thermorupteurs, des interrupteurs à pression ou analogues sont destinés à surveiller le liquide à faire circuler dans le circuit d'eau. Selon la présente invention, le dispositif de chauffe (17) est monté amovible sur le carter (14) de pompe dans le circuit d'eau de la pompe. La combinaison du dispositif de chauffe (17) avec la pompe (11) et le montage selon la présente invention dudit dispositif dans le circuit d'eau de la pompe (11), de préférence dans le carter (14) de pompe, permet une transmission rapide et sans perte de la chaleur au liquide de lavage en circulation. Ledit système de chauffe peut ainsi fonctionner de manière très efficace, tout en permettant des économies d'énergie.
PCT/EP1999/008294 1998-11-13 1999-10-30 Pompe de circulation, en particulier pour un appareil domestique a circulation d'eau WO2000028878A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT99957271T ATE270521T1 (de) 1998-11-13 1999-10-30 Umwälzpumpe, insbesondere für ein wasserführendes haushaltgerät
EP99957271A EP1047334B2 (fr) 1998-11-13 1999-10-30 Pompe de circulation, en particulier pour un appareil domestique a circulation d'eau
PL341002A PL192963B1 (pl) 1998-11-13 1999-10-30 Pompa cyrkulacyjna, zwłaszcza do urządzeń gospodarstwa domowego z przepływem wody
DE59909911T DE59909911D1 (de) 1998-11-13 1999-10-30 Umwälzpumpe, insbesondere für ein wasserführendes haushaltgerät

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19852569A DE19852569A1 (de) 1998-11-13 1998-11-13 Umwälzpumpe, insbesondere für wasserführnde Haushaltgeräte
DE19852569.9 1998-11-13

Publications (1)

Publication Number Publication Date
WO2000028878A1 true WO2000028878A1 (fr) 2000-05-25

Family

ID=7887803

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1999/008294 WO2000028878A1 (fr) 1998-11-13 1999-10-30 Pompe de circulation, en particulier pour un appareil domestique a circulation d'eau

Country Status (5)

Country Link
EP (1) EP1047334B2 (fr)
AT (1) ATE270521T1 (fr)
DE (2) DE19852569A1 (fr)
PL (1) PL192963B1 (fr)
WO (1) WO2000028878A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1595489A1 (fr) * 2004-05-12 2005-11-16 Askoll Holding S.r.l. Pompe de circulation de fluide avec un moteur synchrone, comportant des moyens pour chauffer le fluide, en particulier pour des machines à laver
EP2878250A1 (fr) 2013-11-29 2015-06-03 Electrolux Appliances Aktiebolag Procédé de fonctionnement d'un appareil domestique à circulation d'eau
CN108245116A (zh) * 2018-01-30 2018-07-06 佛山市永脉家电技术开发有限公司 一种安全性高的洗碗机洗涤泵
EP3426930B1 (fr) * 2016-03-11 2022-05-04 I.R.C.A. S.p.A. Industria Resistenze Corazzate e Affini Capot pour pompe centrifuge

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19858137B4 (de) * 1998-12-16 2016-12-15 BSH Hausgeräte GmbH Heizung zum Erwärmen der Spülflüssigkeit in einer Geschirrspülmaschine
DE20018182U1 (de) * 2000-10-25 2001-12-13 Eichenauer Gmbh & Co Kg F Pumpe mit einem beheizbaren Gehäuse
DE10116671B4 (de) * 2001-04-04 2006-04-27 Miele & Cie. Kg Umwälzpumpe mit Heizungseinrichtung
DE10133130A1 (de) * 2001-07-07 2003-01-16 Miele & Cie Umwälzpumpe mit/ohne Heizungseinrichtung
DE10142525B4 (de) * 2001-08-30 2008-08-21 Miele & Cie. Kg Umwälzpumpe mit integrierter Spülwasser-Heizungseinrichtung und einem Temperatur-Sicherheitsschalter
EP1369075B1 (fr) * 2002-06-05 2009-05-27 CANDY S.p.A. Machine à laver la vaisselle
DE10354148A1 (de) * 2003-11-19 2005-06-30 Aweco Appliance Systems Gmbh & Co. Kg Pumpe zur Förderung von Flüssigkeiten mit einer Aufnahme für eine Drucküberwachungsvorrichtung
ITTO20040592A1 (it) * 2004-09-08 2004-12-08 Plaset Spa Chiocciola per una pompa centrifuga
DE102006028913A1 (de) * 2006-06-21 2007-12-27 Aweco Appliance Systems Gmbh & Co. Kg Pumpe, insbesondere für wasserführende Haushaltsmaschinen
DE102007017271A1 (de) * 2007-04-12 2008-10-16 BSH Bosch und Siemens Hausgeräte GmbH Pumpe mit Heizeinrichtung
KR101995421B1 (ko) * 2010-12-31 2019-07-02 엘지전자 주식회사 식기세척기
DE102012203715A1 (de) * 2012-03-08 2013-09-12 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Haushaltsgerät mit zumindest einer motorgetriebenen Pumpe und einer Heizeinrichtung
CN109854538B (zh) 2014-08-07 2021-01-12 德昌电机(深圳)有限公司 加热泵
EP3013116A1 (fr) * 2014-10-21 2016-04-27 Bleckmann GmbH & Co. KG Composant de système de chauffage et son procédé de production
CN104814706B (zh) * 2015-04-22 2017-08-25 佛山市顺德区美的洗涤电器制造有限公司 一种洗碗机及其加热洗涤保护控制方法和装置

Citations (4)

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Publication number Priority date Publication date Assignee Title
US3051182A (en) * 1957-10-04 1962-08-28 George M Gibson Fluid circulating power means for a dishwashing machine
CH406548A (de) * 1960-10-13 1966-01-31 Mueller & Co Kg Geschirrwaschmaschine mit im Behälterboden angeordneter Wascheinrichtung, insbesondere Taumel-Strahlapparat
DE3627732A1 (de) * 1986-08-16 1988-02-18 Ego Italiana Foerdereinrichtung fuer fliessstoffe, insbesondere waschloesungen
FR2618063A3 (fr) * 1987-07-16 1989-01-20 Licentia Gmbh Machine a laver le linge ou la vaisselle

Family Cites Families (6)

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DE8437042U1 (de) † 1985-03-21 Elpag Ag Chur, Chur Durchlauferhitzer
DE2244275C3 (de) * 1972-09-09 1975-09-04 Frankl & Kirchner, Fabrik Fuer Elektromotoren U. Elektrische Apparate, 6830 Schwetzingen Gekapselter Kollektormotor für ein Pumpenaggregat
DE2938883C2 (de) * 1979-09-26 1983-09-08 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Heizung zum Erwärmen der Spülflüssigkeit in einer Geschirrspülmaschine
DE9010254U1 (fr) * 1990-07-06 1991-10-31 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt, De
EP0591774B1 (fr) * 1992-09-23 1997-08-27 Miele & Cie. GmbH & Co. Machine à laver la vaisselle avec chauffe-eau continu
US5701388A (en) † 1994-12-22 1997-12-23 Kohler Co. Combined heater and pump

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3051182A (en) * 1957-10-04 1962-08-28 George M Gibson Fluid circulating power means for a dishwashing machine
CH406548A (de) * 1960-10-13 1966-01-31 Mueller & Co Kg Geschirrwaschmaschine mit im Behälterboden angeordneter Wascheinrichtung, insbesondere Taumel-Strahlapparat
DE3627732A1 (de) * 1986-08-16 1988-02-18 Ego Italiana Foerdereinrichtung fuer fliessstoffe, insbesondere waschloesungen
FR2618063A3 (fr) * 1987-07-16 1989-01-20 Licentia Gmbh Machine a laver le linge ou la vaisselle

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1595489A1 (fr) * 2004-05-12 2005-11-16 Askoll Holding S.r.l. Pompe de circulation de fluide avec un moteur synchrone, comportant des moyens pour chauffer le fluide, en particulier pour des machines à laver
US7607895B2 (en) 2004-05-12 2009-10-27 Askoll Holding S.R.L. Fluid circulation pump with synchronous motor, equipped with heating means of the fluid, in particular for washing machines
EP2878250A1 (fr) 2013-11-29 2015-06-03 Electrolux Appliances Aktiebolag Procédé de fonctionnement d'un appareil domestique à circulation d'eau
EP3426930B1 (fr) * 2016-03-11 2022-05-04 I.R.C.A. S.p.A. Industria Resistenze Corazzate e Affini Capot pour pompe centrifuge
CN108245116A (zh) * 2018-01-30 2018-07-06 佛山市永脉家电技术开发有限公司 一种安全性高的洗碗机洗涤泵
CN108245116B (zh) * 2018-01-30 2023-11-07 佛山市永脉家电技术开发有限公司 一种安全性高的洗碗机洗涤泵

Also Published As

Publication number Publication date
PL341002A1 (en) 2001-03-12
DE59909911D1 (de) 2004-08-12
EP1047334A1 (fr) 2000-11-02
ATE270521T1 (de) 2004-07-15
PL192963B1 (pl) 2006-12-29
EP1047334B2 (fr) 2007-06-06
DE19852569A1 (de) 2000-05-18
EP1047334B1 (fr) 2004-07-07

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