WO2009037019A1 - Rotor de pompe pour pompe à moteur à gaine - Google Patents

Rotor de pompe pour pompe à moteur à gaine Download PDF

Info

Publication number
WO2009037019A1
WO2009037019A1 PCT/EP2008/059173 EP2008059173W WO2009037019A1 WO 2009037019 A1 WO2009037019 A1 WO 2009037019A1 EP 2008059173 W EP2008059173 W EP 2008059173W WO 2009037019 A1 WO2009037019 A1 WO 2009037019A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
pump
base body
pump rotor
unit
Prior art date
Application number
PCT/EP2008/059173
Other languages
German (de)
English (en)
Inventor
Christoph Heier
Claudius Muschelknautz
Original Assignee
Robert Bosch Gmbh
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
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Priority to CN2008801069967A priority Critical patent/CN101802411B/zh
Priority to EP08786129A priority patent/EP2191138A1/fr
Priority to US12/677,879 priority patent/US20110033320A1/en
Publication of WO2009037019A1 publication Critical patent/WO2009037019A1/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
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/0606—Canned motor pumps
    • 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
    • F04D29/18—Rotors
    • F04D29/20—Mounting rotors on shafts

Definitions

  • the present invention relates to a pump rotor, in particular for a canned pump, in which a split tube is used.
  • Conventional canned pumps for pumping liquids as used for example in the cooling system of a motor vehicle, have a paddle wheel, which is arranged on a shaft.
  • the rotor unit is arranged to avoid a complex gear assembly on the same shaft as the paddle wheel and also exposed to the liquid to be pumped.
  • a gap tube sealed to the motor housing is provided between the rotor unit and the stator.
  • Such a canned pump is known, for example, from EP 1 281 870 A2 or from US Pat. No. 7,704,019 B2.
  • both the impeller and a sleeve for receiving and Abdich- tion of the rotor unit are each designed as separate parts, which are each connectable to a common hollow shaft.
  • the present invention provides a pump rotor for a canned pump, wherein the pump rotor comprises a one-piece base body having an impeller base plate and a rotor receiving bush and a rotor unit with rotor magnet, which is arranged on the rotor receiving bush.
  • the impeller base disk is arranged integrally with the rotor receiving bushing for accommodating the rotor unit in the pump rotor according to the invention, the positioning of the impeller and the rotor unit relative to the hollow shaft common to both parts can be carried out with higher accuracy than in a conventional pump rotor for a canned pump , so that the pump rotor according to the invention has a low Mass offset in the radial direction between the blade part, shaft and rotor unit and thus has a significantly lower imbalance.
  • the impeller base disk on the base body, it is particularly easy to position the blade part exactly on the impeller base disk and thus to minimize the imbalance of the pump rotor according to the invention.
  • the manufacture of the pump rotor according to the invention is simplified and the wear of a canned pump with a pump rotor according to the invention can be reduced compared to a conventional canned pump.
  • the noise of the pump rotor is reduced during operation, in particular the structure-borne noise of the first order and its harmonics.
  • a integrally formed with the base body receiving sleeve is provided for the rotor unit.
  • a cover for gas-tight sealing of the rotor unit is provided, which is welded in particular to the main body or molded onto it.
  • a reliable sealing of the rotor unit relative to the liquid to be pumped can be achieved in a particularly simple manner.
  • the receiving sleeve and the rotor unit are coupled to one another in a form-fitting or non-positive manner.
  • This coupling ment may comprise a toothing between axial or radial inner surfaces of the receiving sleeve and axial or radial outer surfaces of the rotor unit, it may be an obliquely extending to the radial direction surface on an inner surface of the receiving sleeve and a corresponding outer surface of the rotor unit, or the receiving sleeve and the Rotor unit can be frictionally coupled with each other.
  • a second embodiment of the present invention can be provided that the rotor unit with the rotor magnet with plastic injected and is placed on the rotor receiving socket.
  • the rotor unit can be sealed by complete overmolding on their outer surfaces particularly reliable liquid and gas-impermeable, while still provided by the pump rotor on the impeller disk rotor receiving socket exact positioning of the rotor unit, and thus the imbalance of the pump rotor according to this second embodiment can still be kept very low.
  • a collar can be provided on the overmolded rotor unit, which can be welded to the base body.
  • the rotor unit can be particularly easily and accurately positioned and fastened to the base body and the sealing of the rotor unit with respect to the liquid to be pumped can be further improved.
  • the pump rotor according to the invention according to the first or the second embodiment can be provided that a blade part with the impeller base of the body via rivet, in particular hot embossed or ultrasonically welded, is connectable.
  • the blade part can be positioned and fastened particularly accurately and reliably to the impeller base disk, so that the imbalance of the pump rotor can be mininned.
  • this allows a particularly simple assembly of the blade part and the base body.
  • a bearing bush for supporting the pump rotor is arranged on a shaft radially inside the rotor receiving bush. This allows a stable, low-wear mounting of the pump rotor can be achieved without the entire body must be made of a material with appropriate properties.
  • the base body may be formed as a plastic injection-molded part, wherein the bearing bush is provided as an encapsulated insert in the base body, so that even with a low-cost made of plastic base body stable storage of the pump rotor can be achieved on the shaft.
  • Fig. 1 shows a cross-sectional view of a canned pump with a
  • FIG. 2 shows a cross-sectional view of the pump rotor of Fig. 1.
  • Fig. 3a shows the main body of the pump rotor of Fig. 1
  • Fig. 3b shows the assembly of the main body and the rotor unit of
  • FIG. 4 shows a cross-sectional view of a pump rotor according to a second embodiment of the present invention.
  • FIG. 5 shows the assembly of the main body and the rotor unit of the pump rotor of FIG. 4.
  • a canned pump 10 includes inflow and outflow channels 12, 14 for the liquid to be pumped, such as, for example, cooling liquid in the cooling circuit of an internal combustion engine, and a motor housing 16 is designed such that it passes through a can 18 into a Dry space 20 and a wet room 22 is divided, which are each sealed from each other.
  • stator 24 and the control electronics for the electric motor for driving the pump are arranged in the drying space 20.
  • rotor 26 is rotatably mounted by means of a bearing bush 28 on a fixedly mounted in the motor housing 16 shaft 30.
  • the pump rotor 26 comprises a one-piece base body 32 with a wheel base disk 34, a rotor receiving socket 36 and a receiving sleeve 38 for receiving a rotor unit 40.
  • the open side of the receiving sleeve 38 is closed by a cover 42.
  • a blade member 44 is mounted, which forms a paddle wheel together with the impeller base 34.
  • the blade part 44 is attached by means of rivet pegs 46 to the impeller base disk 34, which is hot-stamped with the impeller base disk 34 or connected by ultrasonic welding.
  • the base body 32 is first provided, which is prepared as a plastic injection molded part with the bearing bush 28 as a molded insert.
  • the Impeller base 34 On the base body 32 are integrally the Impeller base 34, the rotor receiving sleeve 36 and the receiving sleeve 38 is provided.
  • the rotor unit 40 which is designed as a laminated core with preassembled rotor magnet in a basically known manner is then, as shown in Fig. 3b, inserted into the receiving sleeve 38.
  • a toothing, an inclined surface or the like is provided on an outer surface of the rotor unit 40 and on a corresponding inner surface of the receiving sleeve 38 in order by a positive connection between the rotor unit 40 and the receiving sleeve 38, the torque transmission from the rotor unit 40 to the base body 32 (and thus on the blade portion 44 of the pump rotor 26) to ensure.
  • the torque transmission between the rotor unit 40 and the blade part 44 can also take place via a frictional connection of the rotor unit 40 with the receiving sleeve 38.
  • the rotor unit 40 of the pump rotor 26 can be positioned with particularly great accuracy, so that the radial mass offset between the rotor unit 40 and the Base body 32 and thus the resulting imbalance of the pump rotor 26 is very low.
  • the open end of the receiving sleeve 38 is closed gas-tight after insertion of the rotor unit 40 with the lid 42.
  • the cover 42 can be welded or sprayed onto the receiving sleeve 38 by rotational friction welding, ultrasonic or laser welding, so that the rotor unit 40 with the rotor magnets is reliably sealed against the liquid to be pumped, even though it is located in the wet space 22 of the canned pump 10.
  • the blade part 44 is attached by means of the rivet pegs 46 to the base body 32 already provided with the rotor unit 40.
  • the blade part 44 is fastened to the large-area impeller base disk 34 via a plurality of rivet pegs 46, the blade part 44 can be positioned particularly precisely on the base body 32 and the mass offset between the blade part 44 and the base body 32 with the rotor unit 40 can be minimized without much effort ,
  • the pump rotor 26 according to the first embodiment of the present invention can be provided in a particularly simple manner and with an imbalance reduced compared with conventional pump pumps for canned pumps.
  • FIGS. 4 and 5 A second embodiment of the present invention is shown in FIGS. 4 and 5.
  • the basic structure of a canned pump using the pump rotor 126 according to the second embodiment does not differ from the structure shown in FIG. 1 of the canned pump 10 for the pump rotor 26 according to the first embodiment of the present invention.
  • the main body 132 of the pump rotor 126 is manufactured as a plastic injection molded part with the bushing 128 as an over-molded insert, and includes an impeller base plate 134 and a rotor receiving socket 136 Area of the rotor receiving socket 136, a projection 148 is provided on the base body 132, by means of which the positioning of the rotor unit 140 can be fixed in the axial direction.
  • the rotor unit 140 comprises a laminated core with preassembled rotor magnets and is encapsulated in such a way that the resulting preform 150 completely surrounds the rotor unit 140 on its outer surfaces. diameter of the rotor unit 140 remains free.
  • a peripheral collar 152 which is formed integrally with the pre-molded part 150, is injection-molded, which is designed with a pressing oversize to the rotor receiving socket 136 of the main body 132.
  • the collars 152 which are provided with an interference oversize relative to the rotor accommodating bushing 36, already have a certain seal even against the inner diameter of the rotor unit 140 with respect to the pumping unit Fluid, as well as a frictional engagement between the rotor unit 140 and the rotor receiving socket 136 for torque transmission between the rotor unit 140 and the blade portion 144 given.
  • both the sealing of the rotor unit 140 and the torque transmission between the rotor unit 140 and the blade portion 144 are further enhanced.
  • the blade member 144 is fixed to the rotor base plate 134 of the main body 132 as described in connection with the first embodiment.
  • the pump rotor 126 according to the second embodiment of the present invention thus has a reduced imbalance as compared with conventional pump rotors and can be assembled particularly easily.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention concerne un rotor (26) de pompe pour une pompe à moteur à gaine. Le rotor (26) de pompe comprend un corps de base (32) monobloc comportant un disque principal de roue (34) et un manchon (36) de montage du rotor, ainsi qu'une unité de rotor (40) comprenant des aimants de rotor, et montée sur le manchon (30) de montage du rotor.
PCT/EP2008/059173 2007-09-13 2008-07-14 Rotor de pompe pour pompe à moteur à gaine WO2009037019A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN2008801069967A CN101802411B (zh) 2007-09-13 2008-07-14 用于屏蔽泵的泵转子
EP08786129A EP2191138A1 (fr) 2007-09-13 2008-07-14 Rotor de pompe pour pompe à moteur à gaine
US12/677,879 US20110033320A1 (en) 2007-09-13 2008-07-14 Pump rotor for a canned motor pump

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007043600A DE102007043600A1 (de) 2007-09-13 2007-09-13 Pumpenrotor für eine Spaltrohrpumpe
DE102007043600.0 2007-09-13

Publications (1)

Publication Number Publication Date
WO2009037019A1 true WO2009037019A1 (fr) 2009-03-26

Family

ID=39745078

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/059173 WO2009037019A1 (fr) 2007-09-13 2008-07-14 Rotor de pompe pour pompe à moteur à gaine

Country Status (5)

Country Link
US (1) US20110033320A1 (fr)
EP (1) EP2191138A1 (fr)
CN (1) CN101802411B (fr)
DE (1) DE102007043600A1 (fr)
WO (1) WO2009037019A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017203736A1 (de) 2017-03-07 2018-09-13 Mahle International Gmbh Elektromotor
DE102017203833A1 (de) 2017-03-08 2018-09-13 Mahle International Gmbh Flüssigkeitspumpe
EP3617517A1 (fr) * 2018-08-29 2020-03-04 Johnson Electric International AG Pompe à liquide de refroidissement électrique et procédé de fabrication d'une unité mobile la comprenant
DE102019206548A1 (de) * 2019-05-07 2020-11-12 Mahle International Gmbh Fluidpumpe

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* Cited by examiner, † Cited by third party
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DE102012216196A1 (de) * 2012-09-12 2014-03-13 E.G.O. Elektro-Gerätebau GmbH Pumpe
DE102013014140A1 (de) * 2012-12-21 2014-06-26 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg Elektromotorische Wasserpumpe
US20140271280A1 (en) * 2013-03-15 2014-09-18 Merkle-Korff Industries, Inc. Pump motor
KR101509901B1 (ko) * 2013-07-18 2015-04-08 현대자동차주식회사 캔드 모터 펌프
KR101519205B1 (ko) * 2013-07-18 2015-05-12 현대자동차주식회사 캔드 모터 펌프
KR101543075B1 (ko) 2013-07-18 2015-08-10 현대자동차주식회사 캔드 모터 펌프
CN103452858B (zh) * 2013-08-27 2016-05-18 华纳圣龙（宁波）有限公司 汽车电子冷却水泵
FR3018317B1 (fr) * 2014-03-04 2018-10-19 Wilo Salmson France Pompe de circulation de fluide munie d'un moteur comportant deux parties montees libres en rotation
WO2016004070A1 (fr) 2014-06-30 2016-01-07 Nidec Motor Corporation Stator à noyau surmoulé et moule pour sa production
US10291091B2 (en) 2014-09-25 2019-05-14 Magna Powertrain Fpc Limited Partnership Electric fluid pump with improved rotor unit, rotor unit therefor and methods of construction thereof
CN105656229B (zh) * 2014-11-11 2019-06-28 浙江三花汽车零部件有限公司 电子泵及其电子泵的制造方法
DE102014223795A1 (de) * 2014-11-21 2016-05-25 Robert Bosch Gmbh Pumpe, insbesondere eine Kraftstoffhochdruckpumpe
DE102014225247A1 (de) 2014-12-09 2016-06-09 Robert Bosch Gmbh Verfahren zum Flüssigkeitsstrahlschneiden
DE102014226208A1 (de) 2014-12-17 2016-07-07 Robert Bosch Gmbh Verfahren zum Ausbilden einer Reibschweißverbindung und Bauteileverbund
CN106286378B (zh) * 2015-05-20 2020-12-01 浙江三花汽车零部件有限公司 离心泵
DE102018203823A1 (de) 2018-03-14 2019-09-19 Robert Bosch Gmbh Verfahren und Vorrichtung zum Herstellen einer Statorvorrichtung mit einem Stator
US11218048B2 (en) 2018-12-14 2022-01-04 Nidec Motor Corporation Shaft-mounted slinger for electric motor
CN210738837U (zh) * 2018-12-17 2020-06-12 上海荣威塑胶工业有限公司 用于降噪水泵的马达转子、降噪水泵及水池循环系统
EP3670922B1 (fr) * 2018-12-17 2024-02-07 Bestway Inflatables & Material Corp. Rotor de moteur pour pompe à eau, pompe à eau et système de circulation de piscine
CN210093044U (zh) * 2019-06-03 2020-02-18 米沃奇电动工具公司 用于动力工具的电动马达
US12021437B2 (en) 2019-06-12 2024-06-25 Milwaukee Electric Tool Corporation Rotary power tool
WO2021218728A1 (fr) * 2020-04-30 2021-11-04 杭州三花研究院有限公司 Procédé de fabrication d'un ensemble rotor, ensemble rotor et pompe électrique
CN217401179U (zh) * 2022-05-27 2022-09-09 盾安汽车热管理科技有限公司 转子组件及电子水泵

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EP1635065A1 (fr) * 2004-09-14 2006-03-15 Dana Automotive Limited Assemblage de pompe
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Publication number Priority date Publication date Assignee Title
GB1195747A (en) 1966-08-16 1970-06-24 Licentia Gmbh Circulating Pump which is driven by an electric motor
US4013384A (en) * 1974-07-18 1977-03-22 Iwaki Co., Ltd. Magnetically driven centrifugal pump and means providing cooling fluid flow
US4226574A (en) * 1977-05-06 1980-10-07 Villette Guy J Magnetically driven pump
US6264440B1 (en) * 1998-10-29 2001-07-24 Innovative Mag-Drive, L.L.C. Centrifugal pump having an axial thrust balancing system
EP1281870A2 (fr) 2001-08-02 2003-02-05 WILO GmbH Pompe à tube d'entrefer
EP1770283A1 (fr) 2003-07-22 2007-04-04 BSH Bosch und Siemens Hausgeräte GmbH Pompe à moteur intégré
EP1635065A1 (fr) * 2004-09-14 2006-03-15 Dana Automotive Limited Assemblage de pompe
US20070018521A1 (en) 2005-07-25 2007-01-25 Aisin Seiki Kabushiki Kaisha Electric pump

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017203736A1 (de) 2017-03-07 2018-09-13 Mahle International Gmbh Elektromotor
WO2018162282A1 (fr) 2017-03-07 2018-09-13 Mahle International Gmbh Moteur électrique
EP3913770A1 (fr) 2017-03-07 2021-11-24 MAHLE International GmbH Moteur électrique
EP3913771A1 (fr) 2017-03-07 2021-11-24 MAHLE International GmbH Moteur électrique
DE102017203833A1 (de) 2017-03-08 2018-09-13 Mahle International Gmbh Flüssigkeitspumpe
US11028851B2 (en) 2017-03-08 2021-06-08 Mahle International Gmbh Liquid pump including an impeller connected directly to a rotor receiving sleeve
EP3617517A1 (fr) * 2018-08-29 2020-03-04 Johnson Electric International AG Pompe à liquide de refroidissement électrique et procédé de fabrication d'une unité mobile la comprenant
US11629719B2 (en) 2018-08-29 2023-04-18 Johnson Electric International AG Electric coolant pump and manufacturing method for movable unit of the same
DE102019206548A1 (de) * 2019-05-07 2020-11-12 Mahle International Gmbh Fluidpumpe

Also Published As

Publication number Publication date
DE102007043600A1 (de) 2009-03-19
US20110033320A1 (en) 2011-02-10
EP2191138A1 (fr) 2010-06-02
CN101802411A (zh) 2010-08-11
CN101802411B (zh) 2012-03-14

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