EP1047334B2 - 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
EP1047334B2
EP1047334B2 EP99957271A EP99957271A EP1047334B2 EP 1047334 B2 EP1047334 B2 EP 1047334B2 EP 99957271 A EP99957271 A EP 99957271A EP 99957271 A EP99957271 A EP 99957271A EP 1047334 B2 EP1047334 B2 EP 1047334B2
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EP
European Patent Office
Prior art keywords
pump
heating device
water
housing
pump housing
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.)
Expired - Lifetime
Application number
EP99957271A
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German (de)
English (en)
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EP1047334A1 (fr
EP1047334B1 (fr
Inventor
Wolfram THÖRMER
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.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
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
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Application filed by Miele und Cie KG filed Critical Miele und Cie KG
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Publication of EP1047334B1 publication Critical patent/EP1047334B1/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
    • F04D29/58—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

  • the invention relates to a circulating pump, in particular for a water-conducting household appliance, such as a dishwasher or washing machine, which is equipped with a washing container and an electric heater for Spülwasserer stiirmung with a flanged to the motor housing of the pump pump housing with suction and discharge nozzle for circulating in the circuit and heating liquid, where appropriate safety devices, such as thermal switches, pressure switches or the like. Provided for monitoring the liquid to be delivered in the water cycle.
  • the heating means for heating the rinsing liquid within the rinsing container preferably in the trough-shaped bottom part above or below the filter sieves.
  • dishwashing the heated by the tubular heater rinse water is then sucked by means of the device's own circulation pump and circulated on the dishes.
  • the usually designed as a centrifugal pump circulation pump outside the washing in the base area of the household appliance is installed accessible. Due to the physical separation of the pump and heater special care with regard to the tightness and the electrical safety of leading from the washing tub lines and electrical connections is necessary.
  • heating device for heating the rinsing liquid of a dishwasher is an electrical resistance heating (tubular heater) arranged outside of the metal part of the motor housing of the circulating pump, wherein the waterproof motor housing housed together with the flanged pump housing in the washing of the household appliance is and immersed in the rinsing liquid to be heated.
  • the leads of the electric heater are led out liquid-tight together with the lines of the engine from the pump housing and the washing.
  • a further variant is provided, according to which the heater is arranged inside the motor housing.
  • the pump motor must be protected from excessive heat load.
  • the heater can heat only indirectly via the metal motor housing the rinsing liquid to be circulated, so you must work with an increased heating power. Also, by the only indirectly transferable to the rinse water heat the efficiency the heating lowered.
  • the combination of heating and pump to a non-separable functional unit makes in a heater or pump failure the complete replacement of motor or pump including heating required.
  • the heating device is arranged behind the pump impeller on the side facing the pump motor. It has about the same radius as the impeller. This results in an elongated structure, which takes up more space. In addition, the heating is in a zone in which there is only a low flow velocity. This results in a poor removal of the heating heat, which in turn can lead to damage to the impeller and calcification of the radiator.
  • a conveying device for non-oxidising materials in which the pump housing is preceded by a heating section, around which a radiator is helically wound. Again, results from the heating section an elongated structure and the heat dissipation from the field of heating is bad; It must therefore be improved by an additional stirring rotor.
  • the invention raises the problem of creating a combinable with a circulation pump heating system for rinsing liquid, which works effectively and energy-saving, requires little installation space and easily accessible for servicing and is easily replaceable.
  • the combination of the heating device with the pump and its arrangement according to the invention in the watercourse of the pump, preferably in the pump housing, allows a fast lossless transfer of heat to the circulating rinsing liquid.
  • the heating system works very effectively and energy-saving.
  • the heater in any service case is also easily accessible and easily replaceable separately from the pump. Due to the design of the heater on Pumperigephase constructive measures in the pump drive and the electric pump motor are not necessary.
  • the combination of the heating device with the circulation pump advantageously provides the possibility, also the water circuit of the household appliance necessary safety devices, such as thermal switches, pressure switches, turbidity sensors or the like. Also on the pump housing preferably by plug or locking connections releasably to arrange. As a result, an in itself vorprüf bare unit can be completed.
  • a dishwasher (1) shown in FIG. 1 has a rinsing container (2) with two crockery baskets (3, 4) arranged one above the other, wherein a cutlery drawer (5) is provided in a third rinsing level above the upper crockery basket (4).
  • the baskets (3, 4) and the cutlery drawer (5) are guided in a known manner in the washing container (2) on rails (6).
  • the cutlery drawer (5) can be used separately in one of the baskets (3, 4) and a cutlery basket.
  • a third spraying device (9) above the cutlery drawer (5) is installed on the washing tub cover (10).
  • the spraying devices (7 to 9) designed as rotating spray arms are supplied with flushing fluid by a common circulating pump (11), which is mounted in the device housing below the washing compartment (2).
  • the circulation pump (11) discharge nozzle (12, 13) on its pump housing (14) to which the spray arms are connected.
  • an intake of the circulation pump (11) is designated, with which the rinsing liquid for the liquid circulation is sucked out of the washing.
  • the circulating pump (11) is preferably designed as a centrifugal pump in the pump housing (14) arranged pump impeller (16) for the transport of the rinsing liquid in the embodiment.
  • other types of pumps can be used.
  • FIG. 2 in the case of the pump (11) used for the sake of clarity and to illustrate the inventive combination of a rinsing-water heating device (17) with the pump housing (14), the pump housing cover (23), sh. Fig. 3 u. 4, omitted.
  • the outside of the washing compartment (2) arranged circulation pump (11) is combined with the electric heater (17) to a self-testable unit, the combined building modules (pump 11, heater 17) are mounted separately replaceable or disassembled.
  • the heating device (17) is arranged in the watercourse of the circulating pump (11) on the pump housing (14), preferably within the pump housing (14) between the intake stub (15) and the discharge stub (12, 13). This arrangement is advantageous for a powerful and effectively with high efficiency without heat losses working heater (17).
  • the heating device (17) operates as a tubular heating element (18) surrounded by the rinsing liquid.
  • the tubular heater (18) of the heater (17) is shown in FIG. 2 circumferentially annular preferably wound in the manner of a wound cylindrical coil and surrounds the pump impeller (16) concentrically.
  • a wound tubular heater (18) of the heater (17) is advantageously mounted in the pump housing (14) on the pump motor side housing half (24) of the pump housing (14), wherein the electrical connections (22) isolated and liquid-tight the cup-shaped housing wall of the pump housing (14 ).
  • the heating device (17) is expediently mounted at a distance from the walls of the pump housing (14) on the circulating pump (11).
  • the pump housing (14) in turn is detachably mounted on the motor housing (19) of the circulating pump (11).
  • Another advantageous arrangement is the releasable attachment of the heater (17) in the pump housing (14) on the removable pump housing cover (23) of the circulating pump (11) shown in FIG. 3 and 4.
  • a tubular heater (18 ') is used, however, as Spiral is formed, which is wound in the cover plane around the intake manifold (15) around.
  • the lid (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 also mounted in this construction by inserted intermediate webs (25) at a distance from the walls of the pump housing (14) and the lid (23) on the pump (11) (see Fig .. 4).
  • the in the pump housing (14) arranged heater (17) with the exposed flushed tubular heater (18, 18 ') forms with the surrounding pump housing (14) a water heater of optimum power efficiency and high efficiency, since all heat in the rinse water circulation to the rinse directly is transmitted.
  • the heater (17) as a water heater could also be formed separately outside the pump housing (14) as a with a connection or discharge nozzle (12, 13) of the circulating pump (11) connectable coupling piece, which is preferably attachable to the nozzle , wherein the water connection connections for the heating device (17) and / or their electrical line connections (22) are also designed to be detachable from each other. It is also possible to form a part of the pump housing (14) itself as a heater (17) and this separate housing part releasably connected to the rest of the pump housing z. B. to connect by screwing liquid-tight.
  • the invention is not limited to circulating pumps in dishwashers or centrifugal pumps. Likewise, 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 energy-saving. But especially in devices where there is little space for heating and pump and repair work u. U. must be performed quickly, as z. B. in devices in the laboratory or hospital area is the case.

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)

Claims (12)

  1. Pompe de circulation (11), notamment pour un appareil ménager utilisant de l'eau, tel qu'un lave-vaisselle (1) ou un lave-linge qui est équipé d'une cuve (2) et d'un dispositif de chauffe électrique (17) pour chauffer l'eau de lavage, comprenant un carter de pompe (14) fixé par bride au carter de moteur (19) de la pompe et doté de tubulures d'aspiration et de refoulement (12, 13, 15) pour le liquide à faire circuler dans le circuit et à chauffer, des dispositifs de sécurité tels qu'un thermorupteur (20), un interrupteur manométrique (21) ou analogues pour contrôler l'état du liquide à faire circuler dans le circuit d'eau étant éventuellement prévus, et le dispositif de chauffe (17) étant placé de façon amovible dans le circuit d'eau de la pompe (11), sur le carter de pompe (14), caractérisé en ce que le dispositif de chauffe (17) est réalisé en tant que corps de chauffe (18) enroulé en forme d'anneau, et entoure concentriquement la roue (16) de la pompe.
  2. Pompe de circulation selon la revendication 1, caractérisée en ce que le dispositif de chauffe (17) est disposé à l'intérieur du carter de pompe (14) dans le circuit d'eau entre les tubulures d'aspiration et de refoulement (15 ; 12, 13) de la pompe (11).
  3. Pompe de circulation selon les revendications 1 et 2, caractérisée en ce que le dispositif de chauffe (17) contenu dans le carter de pompe (14) est monté sur la moitié (24) du carter de pompe (14) qui est située du côté du moteur de la pompe.
  4. Pompe de circulation (11), notamment pour un appareil ménager utilisant de l'eau, tel qu'un lave-vaisselle (1) ou un lave-linge qui est équipé d'une cuve (2) et d'un dispositif de chauffe électrique (17) pour chauffer l'eau de lavage, comprenant un carter de pompe (14) fixé par bride au carter de moteur (19) de la pompe et doté de tubulures d'aspiration et de refoulement (12, 13, 15) pour le liquide à faire circuler dans le circuit et à chauffer, des dispositifs de sécurité tels qu'un thermorupteur (20), un interrupteur manométrique (21) ou analogues pour contrôler l'état du liquide à faire circuler dans le circuit d'eau étant éventuellement prévus, et le dispositif de chauffe (17) étant placé de façon amovible dans le circuit d'eau de la pompe (11), sur le carter de pompe (14), caractérisé en ce que le dispositif de chauffe (17) est réalisé en tant que corps de chauffe tubulaire (18') en forme de spirale, qui, au niveau du couvercle (23) amovible de la pompe, dans le plan du couvercle, est enroulé autour de la tubulure d'aspiration (15).
  5. Pompe de circulation selon l'une ou plusieurs des revendications 1 à 4, caractérisée en ce que le corps de chauffe tubulaire (18 ; 18') forme avec le carter de pompe (14) qui l'entoure un chauffe-eau instantané.
  6. Pompe de circulation selon l'une ou plusieurs des revendications 1 à 5, caractérisée en ce que le dispositif de chauffe (17) est réalisé en tant que partie du carter de pompe (14) pouvant être montée séparément.
  7. Pompe de circulation selon l'une ou plusieurs des revendications 1 à 6, caractérisée en ce que le dispositif de chauffe (17) est conçu comme une pièce d'accouplement pouvant être reliée, de préférence par emboîtement, aux tubulures de raccordement ou de refoulement (12, 13) de la pompe.
  8. Pompe de circulation selon l'une ou plusieurs des revendications 1 à 7, caractérisée en ce que les raccordements de prise d'eau pour le dispositif de chauffe (17) et/ou les branchements électriques (19) du dispositif de chauffe (17) sont réalisés en tant que liaisons par emboîtement à crans ou analogues.
  9. Pompe de circulation selon l'une ou plusieurs des revendications 1 à 8, caractérisée en ce que les dispositifs de sécurité tels que le thermorupteur (20), l'interrupteur manométrique (21), les capteurs de turbidité ou analogues sont montés de façon amovible, de préférence par emboîtement, sur le carter de pompe (14), et en ce que là pompe (11), dans le cas d'un lave-linge ou d'un lave-vaisselle, est située en dehors de la cuve (2).
  10. Pompe de circulation selon l'une ou plusieurs des revendications 1 à 9, caractérisée en ce qu'au moins une vanne destinée à fermer, ou à ouvrir à volonté les tubulures de refoulement (12, 13) de la pompe est placée sur le carter de pompe (14), également de façon remplaçable.
  11. Pompe de circulation selon l'une ou plusieurs des revendications 1 à 10, caractérisée en ce que le dispositif de chauffe (17) est monté sur la pompe de circulation (11) à distance (nervures d'écartement 25) des parois du carter de pompe (14).
  12. Pompe de circulation selon la revendication 1 et une ou plusieurs des revendications 4 à 11, caractérisée en ce que le dispositif de chauffe (17) est disposé à l'extérieur, sur le carter de pompe (14).
EP99957271A 1998-11-13 1999-10-30 Pompe de circulation, en particulier pour un appareil domestique a circulation d'eau Expired - Lifetime EP1047334B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19852569 1998-11-13
DE19852569A DE19852569A1 (de) 1998-11-13 1998-11-13 Umwälzpumpe, insbesondere für wasserführnde Haushaltgeräte
PCT/EP1999/008294 WO2000028878A1 (fr) 1998-11-13 1999-10-30 Pompe de circulation, en particulier pour un appareil domestique a circulation d'eau

Publications (3)

Publication Number Publication Date
EP1047334A1 EP1047334A1 (fr) 2000-11-02
EP1047334B1 EP1047334B1 (fr) 2004-07-07
EP1047334B2 true EP1047334B2 (fr) 2007-06-06

Family

ID=7887803

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99957271A Expired - Lifetime EP1047334B2 (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)

Families Citing this family (19)

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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
DE602004007488T2 (de) 2004-05-12 2008-03-20 Askoll Holding S.R.L., Povolaro Di Dueville Flüssigkeitsumwälzpumpe mit einem Synchronmotor, ausgestattet mit einer Einrichtung zum Heizen der Flüssigkeit, insbesondere für Waschmaschinen
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
PL2878250T3 (pl) 2013-11-29 2020-09-07 Electrolux Appliances Aktiebolag Sposób obsługiwania cyrkulującego wodę urządzenia gospodarstwa domowego
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
ITUA20161567A1 (it) * 2016-03-11 2017-09-11 Irca Spa Coperchio per pompa centrifuga
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

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Publication number Priority date Publication date Assignee Title
DE8437042U1 (de) † 1985-03-21 Elpag Ag Chur, Chur Durchlauferhitzer
US5701388A (en) † 1994-12-22 1997-12-23 Kohler Co. Combined heater and pump

Also Published As

Publication number Publication date
DE19852569A1 (de) 2000-05-18
PL192963B1 (pl) 2006-12-29
ATE270521T1 (de) 2004-07-15
EP1047334A1 (fr) 2000-11-02
WO2000028878A1 (fr) 2000-05-25
PL341002A1 (en) 2001-03-12
EP1047334B1 (fr) 2004-07-07
DE59909911D1 (de) 2004-08-12

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