US20100119360A1 - Heatable part of a pump housing - Google Patents

Heatable part of a pump housing Download PDF

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Publication number
US20100119360A1
US20100119360A1 US12/617,186 US61718609A US2010119360A1 US 20100119360 A1 US20100119360 A1 US 20100119360A1 US 61718609 A US61718609 A US 61718609A US 2010119360 A1 US2010119360 A1 US 2010119360A1
Authority
US
United States
Prior art keywords
housing part
pump housing
heating element
tubular heating
part according
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.)
Abandoned
Application number
US12/617,186
Other languages
English (en)
Inventor
Daniel Bredl
Ulrich Schlachter
Christian Spiegel
Armin Lang
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.)
Eichenauer Heizelemente GmbH and Co KG
Original Assignee
Eichenauer Heizelemente GmbH and Co 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=40365773&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US20100119360(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Eichenauer Heizelemente GmbH and Co KG filed Critical Eichenauer Heizelemente GmbH and Co KG
Assigned to EICHENAUER HELZELEMENTE GMBH & CO. KG reassignment EICHENAUER HELZELEMENTE GMBH & CO. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BREDL, DANIEL, LANG, ARMIN, SCHLACHTER, ULRICH, SPIEGEL, CHRISTIAN
Publication of US20100119360A1 publication Critical patent/US20100119360A1/en
Abandoned legal-status Critical Current

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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
    • F04D29/588—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps cooling or heating the machine
    • 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps

Definitions

  • This invention refers to a heatable part of a pump housing on which a heat distribution sheet is fixed on which a tubular heating element is arranged.
  • a pump housing part is known from DE 199 03 951 A1.
  • Heatable pump housing parts are, for example, required for washing machines or dishwashers.
  • the pump housing known from DE 199 03 951 A1 has an aluminium heat distribution sheet fixed on a flat or conical cover surface.
  • the heat distribution sheet distributes the heat generated from a tubular heating element, which is soldered onto the plate, quickly over a large area and transmits it to the stainless steel housing part situated below it.
  • EP 1 507 914 B1 discloses another pump housing part.
  • a tubular heating element is arranged in a suitably shaped groove of the housing part.
  • joints and any free spaces between the tubular heating element and the walls and bottom of the groove are filled with a heat-conducting filler material.
  • filler material bonding agents or solders are mentioned.
  • a constant goal in the development of heatable pump housing parts for washing machines or dishwashers has always been to achieve with as little costs as possible a heat coupling as ideal and reliable as possible between the tubular heating element and the pump housing.
  • the better the heat coupling the faster is the rate, with which the heat generated by the tubular heating element is transmitted to the pump housing and from there to the fluid flowing through the pump housing.
  • the reliability of the coupling is at least as important as a good heat coupling of the tubular heating element. If the heat coupling deteriorates during the operation, the heat generated by the tubular heating element cannot be dissipated properly; as a result, the tubular heating element gets overheated.
  • a pump housing part according to this invention has a groove or step, which is covered by the heat distribution sheet.
  • the tubular heating element is fixed in this groove or step, its area of contact with the heat distribution sheet increases, which subsequently improves the dissipation of heat.
  • the tubular heating element of a housing part preferably has a more or less angular cross-section.
  • the tubular heating element can have an approximately rectangular, trapezoidal or triangular cross-section.
  • the lower side of the tubular heating element i.e. the side facing the pump housing, encases an angle less than 90°, particularly 60° to 80°, with an adjacent side.
  • a rounded tubular heating element can be fixed in an groove having a round bottom, e.g. in a groove with a semi-circular cross-section.
  • the heat distribution sheet extends on both the sides of the groove or step, so that the heat generated by the tubular heating element is spread quickly over a maximum possible area of the housing part.
  • the tubular heating element is arranged in a groove of the housing part that is covered by the heat distribution sheet.
  • This offers the advantage that an even larger area of contact can be created between the tubular heating element and the heat distribution sheet, as compared to the arrangement of the tubular heating element in a step, because a groove with a trapezoidal or rectangular cross-section is formed by two steps; and this enables the heat distribution sheet to touch the tubular heating element on three side faces.
  • FIG. 1 shows an embodiment of a pump housing part of this invention
  • FIG. 2 shows a sectional view of FIG. 1 ;
  • FIG. 3 shows a sectional view of another embodiment
  • FIG. 4 shows a sectional view of another embodiment
  • FIG. 5 shows a sectional view of another embodiment.
  • the pump housing part 1 shown in FIGS. 1 and 2 is a cap.
  • the housing part 1 has a base body made of stainless steel 2 forming a connecting tube 3 .
  • the pump housing part 1 can be heated with a U- or C-shaped tubular heating element 4 , which is soldered onto a heat distribution sheet 5 that spreads over a cover surface of the housing part and is soldered with it.
  • the heat distribution sheet 5 covers a U- or C-shaped groove in the housing part.
  • the groove can have an angular cross-section, particularly rectangular or trapezoidal, or a U-shaped cross-section.
  • the tubular heating element 4 is arranged in this groove, such that it touches both the side walls of the groove.
  • the heat distribution sheet 5 projects by more than 0.5 cm beyond the side walls of the groove.
  • An advantage of this is that a larger area of contact is created between the tubular heating element 4 and the heat distribution sheet 5 .
  • the heat distribution sheet primarily covers substantially the whole upper side of the housing part, especially at least 70% of this area. A part of the upper side, i.e. the part between the ends of the tubular heating element 4 , may remain uncovered since no heat is generated in this area.
  • the heat distribution sheet 5 has securing straps 6 .
  • the plate encompasses the tubular heating element 4 with the help of these straps.
  • the securing straps 6 are cut out from the heat distribution sheet 5 and bent upwards.
  • FIG. 3 shows another embodiment of a heatable pump housing part, which mainly differs from the embodiment shown in FIG. 2 only in that the groove does not have a uniform depth and hence, the tubular heating element 4 is tilted against the cover surface plane.
  • This has the advantage that the heat exchanger surface is the largest where the tubular heating element 4 is heated the most.
  • the tubular heating element is hotter in the centre areas than at the ends.
  • FIG. 4 shows another embodiment, which mainly differs from the aforementioned embodiment only in that the tubular heating element 4 , is fixed in a step. This also increases the area of contact between the tubular heating element 4 and the heat distribution sheet 5 , since the tubular heating element 4 is in contact with two surfaces of the heat distribution sheet 5 that run transverse to one another.
  • the tubular heating element 4 has an approximately trapezoidal cross-section and its footprint faces the heat distribution sheet 5 .
  • a tubular heating element 4 can also be arranged in a reverse orientation in the groove, i.e. with its footprint facing away from the bottom of the groove. In the latter case, the walls of the groove or the two steps, which form the groove, are arranged aslant to one another.
  • the tubular heating element 4 carries a support plate 7 , as shown in FIGS. 1 and 5 , for fixing a safety switch.
  • the support plate 7 is preferably made of aluminium or of a good heat-conducting aluminium alloy and enables a heat coupling between the tubular heating element 4 and a thermostatic protective switch or a thermostat, with which the tubular heating element 4 can be cut off when heated beyond a rated operating temperature.
  • Safety switches which feature a switching operation through the snapping of a bimetallic element, are particularly suitable.
  • the heat distribution sheet 5 has a thickness of 1 mm to 1.5 mm. In the embodiment displayed, the thickness of this plate is 1.2 mm.
  • the heat distribution sheet 5 is inductively soldered with the base body 2 and the tubular heating element 4 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
US12/617,186 2008-11-13 2009-11-12 Heatable part of a pump housing Abandoned US20100119360A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202008015058U DE202008015058U1 (de) 2008-11-13 2008-11-13 Beheizbares Pumpengehäuseteil
DE202008015058.2 2008-11-13

Publications (1)

Publication Number Publication Date
US20100119360A1 true US20100119360A1 (en) 2010-05-13

Family

ID=40365773

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/617,186 Abandoned US20100119360A1 (en) 2008-11-13 2009-11-12 Heatable part of a pump housing

Country Status (2)

Country Link
US (1) US20100119360A1 (de)
DE (2) DE202008015058U1 (de)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103573674A (zh) * 2013-08-20 2014-02-12 杭州热威机电有限公司 外加热式泵用加热器
US9371841B2 (en) 2012-03-05 2016-06-21 Electrolux Home Products, Inc. Safety arrangement for an integrated heater, pump, and motor for an appliance
JP2016522354A (ja) * 2013-06-19 2016-07-28 エーゲーオー エレクトロ・ゲレーテバウ ゲーエムベーハー ポンプのための加熱装置、及びポンプ
KR20170010549A (ko) * 2015-07-20 2017-02-01 엘지전자 주식회사 펌프 및 상기 펌프가 구비된 식기세척기
CN106766117A (zh) * 2015-11-24 2017-05-31 杭州三花家电热管理系统有限公司 一种管路电加热器及具有其的洗碗机
CN106930979A (zh) * 2015-12-29 2017-07-07 杭州三花家电热管理系统有限公司 流体泵及家用电器
CN107034651A (zh) * 2017-04-17 2017-08-11 海宁美力针织有限公司 一种服饰熨烫定型机用的蠕动泵自润滑结构
KR20180103583A (ko) * 2017-03-10 2018-09-19 엘지전자 주식회사 펌프 및 이를 포함하는 식기세척기
CN108852232A (zh) * 2018-06-15 2018-11-23 广东威灵电机制造有限公司 洗碗机的泵体装置和具有其的洗碗机
KR20200029365A (ko) * 2018-09-07 2020-03-18 블랙만 게엠베하 코. 카게 유동 매체를 가열하기 위한 가열 시스템
US11287161B2 (en) * 2016-06-20 2022-03-29 Bleckmann Gmbh & Co. Kg Heating system component providing a compact temperature sensor design
CN114738321A (zh) * 2022-04-07 2022-07-12 贝克电热科技（深圳）有限公司 一种刀片式加热泵盖及加热泵
US11684234B2 (en) 2014-08-22 2023-06-27 Lg Electronics Inc. Pump and dishwasher including the same
EP3751150B1 (de) * 2017-12-19 2024-04-03 Foshan Welling Washer Motor Manufacturing Co., Ltd. Heizpumpe und waschmaschine

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010028617B4 (de) * 2010-05-05 2019-02-07 BSH Hausgeräte GmbH Wasserführendes Hausgerät mit einer Pumpe
US9693672B2 (en) 2011-09-22 2017-07-04 Whirlpool Corporation Dishwasher with sprayer
US9532701B2 (en) 2013-03-01 2017-01-03 Whirlpool Corporation Dishwasher with sprayer
US9713413B2 (en) 2013-07-01 2017-07-25 Whirlpool Corporation Dishwasher for treating dishes
US9297553B2 (en) * 2013-07-01 2016-03-29 Whirlpool Corporation Pump assembly
US9532699B2 (en) 2013-07-15 2017-01-03 Whirlpool Corporation Dishwasher with sprayer
DE102017118217A1 (de) 2017-08-10 2019-02-14 Eichenauer Heizelemente Gmbh & Co. Kg Beheizbares Pumpengehäuseteil

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3440400A (en) * 1966-09-27 1969-04-22 Louis C Cotts Electric duct heater
CH617999A5 (en) * 1977-04-07 1980-06-30 Protherm Ag Plate-shaped structural element for radiant heating systems
US5194717A (en) * 1990-10-18 1993-03-16 Tecumseh Products Company Bracket for mounting a crankcase heater
DE19903951A1 (de) * 1999-02-02 2000-08-03 Eichenauer Gmbh & Co Kg F Beheizbares Pumpengehäuse zur Flüssigkeitserwärmung
US20020048513A1 (en) * 2000-10-25 2002-04-25 Martin Kleemann Pump with a heatable housing
US20050196274A1 (en) * 2004-03-05 2005-09-08 Hans-Juergen Kraffzik Centrifugal pump
US20060011221A1 (en) * 2002-05-29 2006-01-19 Harald Schrott Household appliance

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3040463A1 (de) * 1980-10-27 1982-05-13 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Mechanische verbindung eines elektrischen rohrheizkoerpers mit einer zu beheizenden flaeche
DE3711637A1 (de) * 1987-04-07 1988-10-27 Ego Elektro Blanc & Fischer Elektro-heizgefaess
DE29613481U1 (de) * 1996-08-03 1996-09-19 Fritz Eichenauer GmbH & Co. KG Fabrik elektr. Spezialartikel, 76870 Kandel Wasserkochgerät
DE102004048362A1 (de) * 2004-03-05 2005-09-22 Aweco Appliance Systems Gmbh & Co. Kg Kreiselpumpe

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3440400A (en) * 1966-09-27 1969-04-22 Louis C Cotts Electric duct heater
CH617999A5 (en) * 1977-04-07 1980-06-30 Protherm Ag Plate-shaped structural element for radiant heating systems
US5194717A (en) * 1990-10-18 1993-03-16 Tecumseh Products Company Bracket for mounting a crankcase heater
DE19903951A1 (de) * 1999-02-02 2000-08-03 Eichenauer Gmbh & Co Kg F Beheizbares Pumpengehäuse zur Flüssigkeitserwärmung
US20020048513A1 (en) * 2000-10-25 2002-04-25 Martin Kleemann Pump with a heatable housing
US20060011221A1 (en) * 2002-05-29 2006-01-19 Harald Schrott Household appliance
US20050196274A1 (en) * 2004-03-05 2005-09-08 Hans-Juergen Kraffzik Centrifugal pump

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9371841B2 (en) 2012-03-05 2016-06-21 Electrolux Home Products, Inc. Safety arrangement for an integrated heater, pump, and motor for an appliance
JP2016522354A (ja) * 2013-06-19 2016-07-28 エーゲーオー エレクトロ・ゲレーテバウ ゲーエムベーハー ポンプのための加熱装置、及びポンプ
CN103573674A (zh) * 2013-08-20 2014-02-12 杭州热威机电有限公司 外加热式泵用加热器
US12016507B2 (en) 2014-08-22 2024-06-25 Lg Electronics Inc. Pump and dishwasher including the same
US11684234B2 (en) 2014-08-22 2023-06-27 Lg Electronics Inc. Pump and dishwasher including the same
KR102459276B1 (ko) * 2015-07-20 2022-10-26 엘지전자 주식회사 펌프 및 상기 펌프가 구비된 식기세척기
KR20170010549A (ko) * 2015-07-20 2017-02-01 엘지전자 주식회사 펌프 및 상기 펌프가 구비된 식기세척기
KR102570191B1 (ko) * 2015-07-20 2023-08-24 엘지전자 주식회사 펌프 및 상기 펌프가 구비된 식기세척기
KR20220146389A (ko) * 2015-07-20 2022-11-01 엘지전자 주식회사 펌프 및 상기 펌프가 구비된 식기세척기
CN106766117A (zh) * 2015-11-24 2017-05-31 杭州三花家电热管理系统有限公司 一种管路电加热器及具有其的洗碗机
CN106930979A (zh) * 2015-12-29 2017-07-07 杭州三花家电热管理系统有限公司 流体泵及家用电器
US11287161B2 (en) * 2016-06-20 2022-03-29 Bleckmann Gmbh & Co. Kg Heating system component providing a compact temperature sensor design
KR102332831B1 (ko) * 2017-03-10 2021-11-29 엘지전자 주식회사 펌프 및 이를 포함하는 식기세척기
US10758107B2 (en) * 2017-03-10 2020-09-01 Lg Electronics Inc. Pump and dishwasher comprising the same
KR20180103583A (ko) * 2017-03-10 2018-09-19 엘지전자 주식회사 펌프 및 이를 포함하는 식기세척기
CN107034651A (zh) * 2017-04-17 2017-08-11 海宁美力针织有限公司 一种服饰熨烫定型机用的蠕动泵自润滑结构
EP3751150B1 (de) * 2017-12-19 2024-04-03 Foshan Welling Washer Motor Manufacturing Co., Ltd. Heizpumpe und waschmaschine
CN108852232A (zh) * 2018-06-15 2018-11-23 广东威灵电机制造有限公司 洗碗机的泵体装置和具有其的洗碗机
US11306945B2 (en) * 2018-09-07 2022-04-19 Bleckmann Gmbh & Co. Kg Heating system for heating a fluid medium
KR20200029365A (ko) * 2018-09-07 2020-03-18 블랙만 게엠베하 코. 카게 유동 매체를 가열하기 위한 가열 시스템
KR102666707B1 (ko) * 2018-09-07 2024-05-17 블랙만 게엠베하 코. 카게 유동 매체를 가열하기 위한 가열 시스템
CN114738321A (zh) * 2022-04-07 2022-07-12 贝克电热科技（深圳）有限公司 一种刀片式加热泵盖及加热泵

Also Published As

Publication number Publication date
DE102009052019B4 (de) 2017-08-03
DE102009052019A1 (de) 2010-05-27
DE102009052019C5 (de) 2020-02-20
DE202008015058U1 (de) 2009-02-19

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Legal Events

Date Code Title Description
AS Assignment

Owner name: EICHENAUER HELZELEMENTE GMBH & CO. KG,GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BREDL, DANIEL;SCHLACHTER, ULRICH;SPIEGEL, CHRISTIAN;AND OTHERS;REEL/FRAME:023520/0168

Effective date: 20091111

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION