WO2000035335A1 - Heizung zum erwärmen der spülflüssigkeit in einer geschirrspülmaschine - Google Patents
Heizung zum erwärmen der spülflüssigkeit in einer geschirrspülmaschine Download PDFInfo
- Publication number
- WO2000035335A1 WO2000035335A1 PCT/EP1999/009610 EP9909610W WO0035335A1 WO 2000035335 A1 WO2000035335 A1 WO 2000035335A1 EP 9909610 W EP9909610 W EP 9909610W WO 0035335 A1 WO0035335 A1 WO 0035335A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heating
- pump housing
- heating means
- pump
- motor
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
-
- 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
Definitions
- the invention relates to a heater for heating the washing liquid in a dishwasher with a pump which is connected in a liquid-conducting manner to a washing container and is arranged outside the washing container and consists essentially of a motor and an impeller arranged in a pump housing.
- Dishwashers are operated with washing programs in which heated washing liquid is circulated by a pump, the washing liquid acting on the items to be cleaned arranged in a treatment room - a washing container - by means of appropriate devices, usually by means of spray devices, such as rotating spray arms.
- heating means are arranged in dishwashers, which are arranged, for example in DE-OS 35 28 696, on the bottom of the washing container.
- the arrangement of heating means on the bottom of the washing container leads to a reduction in the size of the filling space for items to be cleaned and to calcification of the heating means due to the evaporation of the washing liquid when the heating means is completely dried again.
- the heating means are also arranged in a continuous-flow heater which can be arranged outside the washing compartment. This arrangement requires an additional outlay on liquid lines and reduces the space for the arrangement of units required in a dishwasher.
- the invention is therefore based on the object of providing a powerful heater for heating the washing liquid, which is arranged outside the washing container, without restricting the space for further units of the dishwasher.
- heating means are arranged on the pump housing in heat-conducting contact with the interior of the pump housing.
- the pump with the motor and pump housing is arranged outside the rinsing container, the loading space of the rinsing container is not restricted, since liquid lines which are required anyway are used.
- the heating means are arranged according to the invention on the pump housing of the pump which is required anyway, no further aggregate is required in the space outside the rinsing container, so that there is no restriction of this space for further aggregates. Since all of the rinsing liquid is circulated by the pump, i.e. is repeatedly passed through the pump housing, sufficient heating of the rinsing liquid is reliably ensured and efficient heating is created.
- the invention provides a powerful heater for heating the washing liquid, which is arranged outside the washing container, without restricting the space for further units of the dishwasher.
- the heating means are arranged on the outside of the pump housing according to a preferred embodiment of the invention.
- the heating means are arranged on the outside on the side of the pump housing facing the motor. Due to the arrangement of the heating means in the space between the motor and the pump housing, additional protection of the heating means is not necessary.
- a further improvement in the accessibility of the heating means, for example for repair work but also easier assembly, is achieved according to an advantageous embodiment of the invention in that the heating means are arranged on the outside on the side of the pump housing facing away from the motor.
- the heating means are designed as electrical resistance heating, which can preferably be designed as a tubular heater or alternatively as a thick-film heater.
- the part of the pump housing that carries the heating means is made of stainless steel.
- the part of the pump housing that carries the heating means is equipped with an enameled surface.
- an enameled surface In particular when using thick-film radiators, which are usually applied directly to the surface as a paste-like mass and therefore require an insulating layer for metallic supports, the use of e.g. enameled sheets avoided applying an additional insulating layer.
- the use of non-rustproof materials for the part of the pump housing that carries the heating means is also possible, since the enamelled surface ensures protection of the surface that comes into contact with the flushing liquid, which may have chemical additives.
- a temperature switch is arranged in a particularly advantageous manner, the temperature switch alternatively being a pressure switch or preferably a thermal switch.
- a temperature switch serves on the one hand to safeguard the temperature of the heating means and on the other hand to regulate the temperature of the rinsing liquid or to control the operation of the heating means.
- the thermal switch is expediently arranged on the pump housing.
- the heating means are according to a preferred embodiment of the invention covered with an insulating layer, thus avoiding energy loss and damage to the motor.
- the insulating layer is expediently covered with a protective plate.
- FIG. 1 shows a schematic representation of a section through a pump of a dishwasher with heating means arranged on the outside on the side of the pump housing facing the motor according to a preferred embodiment of the heating according to the invention
- FIG. 2 shows a schematic representation of a section through a pump of a dishwasher with heating means arranged on the outside on the side of the pump housing facing the motor according to an advantageous embodiment of the heating according to the invention
- FIG. 3 shows a schematic illustration of a section through a pump of a dishwasher with heating means arranged on the outside on the side of the pump housing facing away from the motor according to a further advantageous embodiment of the heating according to the invention
- FIG. 4 shows a schematic representation of a section through a pump of a dishwasher with heating means arranged on the outside on the side of the pump housing facing away from the motor according to a further advantageous embodiment of the heating according to the invention
- Dishwashers are operated with washing programs in which heated washing liquid is circulated by a pump 1, the washing liquid using appropriate devices, usually using spray devices not explained in detail. directions, such as rotating spray arms, arranged in a treatment room - a washing container 2 - arranged, not shown, to be cleaned.
- the pump 1 is arranged outside the washing container 2, which is only shown in sections.
- the pump 1 is connected to the rinsing tank 2 via a suction pipe 3 in a manner not described in a liquid-conducting manner.
- the pump 1 essentially consists of a motor 4 and an impeller 5, the impeller 5 being surrounded by a pump housing 6.
- the pump housing 6 is composed of two parts - a pump housing cover 7 and a pump housing lower part 8.
- the pump housing cover 7 and the pump housing lower part 8 are in a bayonet fitting, not described in more detail, with the interposition of a seal 11 and with the housing of the motor 4, which is not explained in more detail connected.
- the direction of flow of the rinsing liquid is indicated by an arrow 9.
- heating means 10, 10 'on the pump housing 6 are in thermally conductive contact with the interior of the pump housing 6, i.e. arranged with the flushing liquid passed through the interior of the pump housing 6. It is also common to all the exemplary embodiments shown that the heating means 10, 10 'are arranged on the outside of the pump housing 6 and that all the heating means 10, 10' shown are designed as electrical resistance heating, tubular heating elements being designated 10 and thick-film heating elements 10 '.
- a temperature switch 13 in the exemplary embodiments a thermal switch, is arranged on the pump housing 6 for securing the temperature of the heating means 10, 10 ′ and for regulating the temperature of the rinsing liquid or for controlling the operation of the heating means 10, 10 ′.
- a pressure switch is also possible.
- FIG. 1 and 2 show embodiments of the invention in which the heating means 10, 10 ′ are arranged on the outside on the side facing the motor 4 - on the lower part 8 of the pump housing - of the pump housing 6.
- the pump housing lower part 8 carrying the heating means 10, 10 ′ is made of stainless steel in the exemplary embodiments shown.
- the part of the pump Housing be equipped with an enameled surface, which in particular when using thick-film radiators, the saving of an additional insulating layer and also when using tubular radiators, the possibility of using non-stainless materials for the part of the pump housing carrying the heating means.
- heating means 10 are designed as tubular heating elements 10, which are spiral-shaped in the exemplary embodiment and are soldered onto the lower part 8 of the pump housing.
- FIG. 2 shows an advantageous embodiment of the invention, in which the heating means 10 'are designed as, in the exemplary embodiment, spiral-shaped, thick-film heating elements 10' applied to the lower part 8 of the pump housing.
- a fuse 14 may be connected upstream of the thick-film heating element 10 ', as shown in the exemplary embodiment.
- FIG. 3 and 4 show embodiments of the invention in which the heating means 10, 10 'are arranged on the outside on the side facing away from the motor 4 - on the pump housing cover 7 - of the pump housing 6.
- the pump housing cover 7 carrying the heating means 10, 10 ' is made of stainless steel.
- the part of the pump housing that carries the heating means can be equipped with an enameled surface, which in particular when using thick-film radiators saves the need for an additional insulating layer and also when using tubular heating elements the possibility of using non-stainless materials for the part of the pump housing that carries the heating means .
- the insulating layer 12 is covered with a protective plate 15.
- heating means are designed as tubular heating elements 10 soldered onto the pump housing cover 7, in the embodiment in the form of a spiral.
- FIG 4 shows a further advantageous embodiment of the invention, in which the heating means 10 'are designed as, in the exemplary embodiment, spiral-shaped, thick-film heating elements 10' applied to the pump housing cover 7.
- the thick film radiator Per 10 ' as shown in the exemplary embodiment, a fuse 14 may be connected upstream.
- the pump 1 with the motor 4 and the pump housing 6, as is currently predominantly customary is arranged outside of the rinsing container 2, the loading space of the rinsing container 2 is not restricted, since the liquid lines which are required anyway for supplying the pump 1 are used.
- the entire rinsing liquid is circulated by means of the pump 1, ie is repeatedly passed through the pump housing 6, sufficient heating of the rinsing liquid is guaranteed and an efficient heating is created. With the invention, a powerful heater for heating the washing liquid is created, which is arranged outside the washing container 2, without restricting the space for further units of the dishwasher.
Landscapes
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Washing And Drying Of Tableware (AREA)
- Constitution Of High-Frequency Heating (AREA)
- Table Devices Or Equipment (AREA)
- Table Equipment (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE59908973T DE59908973D1 (de) | 1998-12-16 | 1999-12-07 | Heizung zum erwärmen der spülflüssigkeit in einer geschirrspülmaschine |
EP99963417A EP1139852B1 (de) | 1998-12-16 | 1999-12-07 | Heizung zum erwärmen der spülflüssigkeit in einer geschirrspülmaschine |
AT99963417T ATE262302T1 (de) | 1998-12-16 | 1999-12-07 | Heizung zum erwärmen der spülflüssigkeit in einer geschirrspülmaschine |
US09/883,809 US7287536B2 (en) | 1998-12-16 | 2001-06-18 | Heater for heating the dishwashing liquid in a dishwasher |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19858137.8A DE19858137B4 (de) | 1998-12-16 | 1998-12-16 | Heizung zum Erwärmen der Spülflüssigkeit in einer Geschirrspülmaschine |
DE19858137.8 | 1998-12-16 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/883,809 Continuation US7287536B2 (en) | 1998-12-16 | 2001-06-18 | Heater for heating the dishwashing liquid in a dishwasher |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000035335A1 true WO2000035335A1 (de) | 2000-06-22 |
Family
ID=7891341
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1999/009610 WO2000035335A1 (de) | 1998-12-16 | 1999-12-07 | Heizung zum erwärmen der spülflüssigkeit in einer geschirrspülmaschine |
Country Status (6)
Country | Link |
---|---|
US (1) | US7287536B2 (de) |
EP (1) | EP1139852B1 (de) |
AT (1) | ATE262302T1 (de) |
DE (2) | DE19858137B4 (de) |
ES (1) | ES2217864T3 (de) |
WO (1) | WO2000035335A1 (de) |
Cited By (5)
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---|---|---|---|---|
EP1201933A3 (de) * | 2000-10-25 | 2004-03-10 | Fritz Eichenauer GmbH & Co. KG | Pumpe mit einem beheizbaren Gehäuse |
GB2427437A (en) * | 2005-06-23 | 2006-12-27 | Otter Controls Ltd | Pump incorporating an electric heating element |
US20090266386A1 (en) * | 2008-04-25 | 2009-10-29 | Bsh Bosch Und Siemens Hausgeraete Gmbh | Dishwasher and base tray for said dishwasher |
CN110966204A (zh) * | 2018-09-30 | 2020-04-07 | 青岛海尔洗碗机有限公司 | 一种加热型离心泵及家用电器 |
US20210259511A1 (en) * | 2017-08-31 | 2021-08-26 | Lg Electronics Inc. | Pump and dishwasher comprising the same |
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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 |
DE10142525B4 (de) * | 2001-08-30 | 2008-08-21 | Miele & Cie. Kg | Umwälzpumpe mit integrierter Spülwasser-Heizungseinrichtung und einem Temperatur-Sicherheitsschalter |
WO2003102290A1 (de) | 2002-05-29 | 2003-12-11 | Aweco Appliance Systems Gmbh & Co. Kg | Haushaltsmaschine |
DE102004011365A1 (de) * | 2004-03-05 | 2005-09-22 | Aweco Appliance Systems Gmbh & Co. Kg | Kreiselpumpe |
ITTO20040592A1 (it) * | 2004-09-08 | 2004-12-08 | Plaset Spa | Chiocciola per una pompa centrifuga |
DE102006012081B4 (de) * | 2006-03-14 | 2009-09-03 | Miele & Cie. Kg | Laugenbehälter mit plattenförmiger Heizeinrichtung |
DE102006028913A1 (de) | 2006-06-21 | 2007-12-27 | Aweco Appliance Systems Gmbh & Co. Kg | Pumpe, insbesondere für wasserführende Haushaltsmaschinen |
KR101306717B1 (ko) * | 2007-03-31 | 2013-09-11 | 엘지전자 주식회사 | 식기 세척기 및 그 제어 방법 |
US7972447B2 (en) * | 2007-05-15 | 2011-07-05 | Electrolux Home Products, Inc. | Screening arrangement for a dishwasher, and associated apparatus and method |
DE102007053162A1 (de) * | 2007-11-08 | 2009-05-14 | Daimler Ag | Pumpe und Brennstoffzellensystem mit einer derartigen Pumpe |
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DE102010028617B4 (de) | 2010-05-05 | 2019-02-07 | BSH Hausgeräte GmbH | Wasserführendes Hausgerät mit einer Pumpe |
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CN103089710B (zh) * | 2011-10-28 | 2016-07-06 | 德昌电机(深圳)有限公司 | 加热泵 |
WO2013092144A1 (en) * | 2011-12-20 | 2013-06-27 | Sulzer Pumpen Ag | Method and pump for pumping highly viscous fluids |
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DE102012202065B3 (de) | 2012-02-10 | 2013-05-29 | E.G.O. Elektro-Gerätebau GmbH | Pumpe und Verfahren zum Beheizen einer Pumpe |
US9371841B2 (en) | 2012-03-05 | 2016-06-21 | Electrolux Home Products, Inc. | Safety arrangement for an integrated heater, pump, and motor for an appliance |
DE102013200280A1 (de) * | 2013-01-10 | 2014-07-10 | E.G.O. Elektro-Gerätebau GmbH | Impellerpumpe |
US9532701B2 (en) | 2013-03-01 | 2017-01-03 | Whirlpool Corporation | Dishwasher with sprayer |
US9297553B2 (en) * | 2013-07-01 | 2016-03-29 | Whirlpool Corporation | Pump assembly |
US9713413B2 (en) | 2013-07-01 | 2017-07-25 | Whirlpool Corporation | Dishwasher for treating dishes |
US9532699B2 (en) | 2013-07-15 | 2017-01-03 | Whirlpool Corporation | Dishwasher with sprayer |
US10228157B2 (en) * | 2014-01-20 | 2019-03-12 | I.R.C.A. S.P.A. Industria Resistenze Corazzate E Affini | Heater for household appliances |
US10602905B2 (en) * | 2014-04-24 | 2020-03-31 | Foshan Shunde Midea Washing Appliances Mfg. Co. Lt | Heat pump and dishwasher comprising the same |
CN109854538B (zh) * | 2014-08-07 | 2021-01-12 | 德昌电机(深圳)有限公司 | 加热泵 |
DE102014215853A1 (de) * | 2014-08-11 | 2016-02-11 | BSH Hausgeräte GmbH | Pumpe mit einer Heizvorrichtung, die eine elektrische Folienheizung aufweist |
CN105156358A (zh) * | 2015-09-29 | 2015-12-16 | 佛山市威灵洗涤电机制造有限公司 | 离心泵 |
ES1160808Y (es) * | 2016-06-16 | 2016-10-04 | Teylor Intelligent Processes Sl | Unidad hidraulica autonoma |
PL3620097T3 (pl) * | 2018-09-07 | 2021-12-27 | Bleckmann Gmbh & Co. Kg | Układ grzewczy do ogrzewania płynnego czynnika |
EP3901466B1 (de) * | 2020-04-24 | 2023-10-25 | E.G.O. Elektro-Gerätebau GmbH | Verfahren zum betrieb einer pumpe |
US11399696B2 (en) | 2020-09-01 | 2022-08-02 | Haier Us Appliance Solutions, Inc. | Dishwashing appliances having a hot plate heater for drying |
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JPH09148047A (ja) * | 1995-11-16 | 1997-06-06 | Teikoku Tsushin Kogyo Co Ltd | 凍結防止ヒータ及び凍結防止ヒータ用伝熱板 |
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US5914065A (en) * | 1996-03-18 | 1999-06-22 | Alavi; Kamal | Apparatus and method for heating a fluid by induction heating |
JPH1022060A (ja) * | 1996-06-28 | 1998-01-23 | Noritz Corp | 加熱ヒ−タ |
JPH10103297A (ja) * | 1996-10-02 | 1998-04-21 | Kubota Corp | ヒータ内蔵ポンプ |
JPH10318168A (ja) * | 1997-05-22 | 1998-12-02 | T D Giken:Kk | 容積移送型ポンプ |
US6200108B1 (en) * | 1998-03-11 | 2001-03-13 | Aqua-Flo, Incorporated | Heat exchanging means for a pump motor using a bypass tube within a recirculating water system |
DE19821148A1 (de) * | 1998-05-12 | 1999-11-18 | Aeg Hausgeraete Gmbh | Programmgesteuertes wasserführendes elektrisches Haushaltsgerät |
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DE19860149A1 (de) * | 1998-12-24 | 2000-06-29 | Rota System Ag | Heiz-Vorrichtung |
-
1998
- 1998-12-16 DE DE19858137.8A patent/DE19858137B4/de not_active Expired - Lifetime
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1999
- 1999-12-07 ES ES99963417T patent/ES2217864T3/es not_active Expired - Lifetime
- 1999-12-07 AT AT99963417T patent/ATE262302T1/de active
- 1999-12-07 WO PCT/EP1999/009610 patent/WO2000035335A1/de active IP Right Grant
- 1999-12-07 DE DE59908973T patent/DE59908973D1/de not_active Revoked
- 1999-12-07 EP EP99963417A patent/EP1139852B1/de not_active Revoked
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2001
- 2001-06-18 US US09/883,809 patent/US7287536B2/en not_active Expired - Lifetime
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US3051182A (en) * | 1957-10-04 | 1962-08-28 | George M Gibson | Fluid circulating power means for a dishwashing machine |
FR2496777A1 (fr) * | 1980-12-19 | 1982-06-25 | Hydro Fluid | Dispositif pour maintenir en temperature un liquide traversant une pompe |
DE3627732A1 (de) * | 1986-08-16 | 1988-02-18 | Ego Italiana | Foerdereinrichtung fuer fliessstoffe, insbesondere waschloesungen |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1201933A3 (de) * | 2000-10-25 | 2004-03-10 | Fritz Eichenauer GmbH & Co. KG | Pumpe mit einem beheizbaren Gehäuse |
GB2427437A (en) * | 2005-06-23 | 2006-12-27 | Otter Controls Ltd | Pump incorporating an electric heating element |
GB2427437B (en) * | 2005-06-23 | 2010-11-10 | Otter Controls Ltd | Combined heater pump apparatus |
US20090266386A1 (en) * | 2008-04-25 | 2009-10-29 | Bsh Bosch Und Siemens Hausgeraete Gmbh | Dishwasher and base tray for said dishwasher |
US8857450B2 (en) * | 2008-04-25 | 2014-10-14 | Bsh Bosch Und Siemens Hausgeraete Gmbh | Dishwasher and base tray for said dishwasher |
US20210259511A1 (en) * | 2017-08-31 | 2021-08-26 | Lg Electronics Inc. | Pump and dishwasher comprising the same |
CN110966204A (zh) * | 2018-09-30 | 2020-04-07 | 青岛海尔洗碗机有限公司 | 一种加热型离心泵及家用电器 |
Also Published As
Publication number | Publication date |
---|---|
DE19858137B4 (de) | 2016-12-15 |
US7287536B2 (en) | 2007-10-30 |
US20010042560A1 (en) | 2001-11-22 |
DE19858137A1 (de) | 2000-06-21 |
ATE262302T1 (de) | 2004-04-15 |
EP1139852B1 (de) | 2004-03-24 |
DE59908973D1 (de) | 2004-04-29 |
ES2217864T3 (es) | 2004-11-01 |
EP1139852A1 (de) | 2001-10-10 |
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