US20140241912A1 - Cooling circuit pump for a motor vehicle - Google Patents

Cooling circuit pump for a motor vehicle Download PDF

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Publication number
US20140241912A1
US20140241912A1 US14/348,835 US201214348835A US2014241912A1 US 20140241912 A1 US20140241912 A1 US 20140241912A1 US 201214348835 A US201214348835 A US 201214348835A US 2014241912 A1 US2014241912 A1 US 2014241912A1
Authority
US
United States
Prior art keywords
cooling circuit
circuit pump
stator
snap hooks
motor 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.)
Abandoned
Application number
US14/348,835
Inventor
Johann Braun
Joerg Schmid
Samir Mahfoudh
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.)
Robert Bosch GmbH
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
Assigned to ROBERT BOSCH GMBH reassignment ROBERT BOSCH GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BRAUN, JOHANN, MAHFOUDH, SAMIR, SCHMID, JOERG
Publication of US20140241912A1 publication Critical patent/US20140241912A1/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
    • F04D29/60—Mounting; Assembling; Disassembling
    • 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid 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
    • 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
    • F04D13/064—Details of the magnetic circuit
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
    • H02K1/185—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to outer stators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
    • H02K5/128—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas using air-gap sleeves or air-gap discs

Definitions

  • the invention relates to a cooling circuit pump for a motor vehicle.
  • German patent publication DE 10 2009 028 144 A1 discloses a cooling circuit pump for a motor vehicle, the former having a hydraulic part as well as an electric motor.
  • said pumps are exposed to considerable vibration and temperature loads.
  • This results for example, during use as a so-called auxiliary water pump which increases the climate comfort in the motor vehicle, improves the flow of the coolant and supports the heating circuit. In so doing, the use of residual heat is facilitated when the engine is turned off.
  • stator is received in the motor housing in a positively locking manner.
  • complicated production equipment is no longer required as is the case for bonding or screwing operations.
  • the stator which is constructed from a laminated core is preferably fastened by means of a snap hook device on or in the motor housing.
  • snap hooks are disposed on the inside of the laminated core radially around the circumference of the motor housing in a distributed manner, said snap hooks engaging around the laminated core in a positively locking manner with the aid of latching lugs formed on the ends thereof.
  • the snap hooks are thereby attached to a support ring, wherein support ring and snap hooks are preferably configured as one piece with the motor housing, e.g. manufactured by means of an injection molding process.
  • a tolerance compensation element is disposed between support ring and the laminated core of the stator, which element, as previously mentioned, ensures that expansions due to temperature can be absorbed.
  • the tolerance compensation element allows the stator to be easily mounted in the motor housing.
  • the snap hooks are fastened to a rotor can.
  • a further modified embodiment consists of the laminated core having a step or ledge on which the latching lugs of the snap hooks engage.
  • FIG. 1 shows a cross section through an electric motor of a cooling circuit pump.
  • FIG. 2 shows a corresponding top view of the electric motor.
  • FIG. 3 shows a cross section through an electric motor of a cooling circuit pump in a second embodiment
  • FIG. 4 shows a cross section through an electric motor of a cooling circuit pump in a third embodiment.
  • FIG. 1 an electric motor is depicted in cross section, which preferably is used in cooling circuit pumps in the automotive field.
  • Design and function of such cooling circuit pumps are generally known, for example from the German patent publication DE 10 2009 028 144 A1 cited at the beginning of the application. The disclosure content of said patent publication will be explicitly referred to if necessary.
  • the stator 12 comprising a laminated core is received in a motor housing 14 of the electric motor 10 .
  • six snap hooks 16 are provided which are uniformly distributed on the circumference of the motor housing 14 .
  • the snap hooks 16 attach thereby in the region of a support ring 18 which is preferably manufactured as one piece together with the snap hooks 16 and the motor housing 14 in an injection molding process.
  • the snap hooks 16 have corresponding latching lugs 20 on the free ends thereof, said latching lugs engaging in a positively locking manner around the uppermost lamella 13 of the laminated core in the installed state; thus enabling the entire laminated core to be reliably fixed in the motor housing 14 .
  • a tolerance compensation element 22 which is correspondingly matched to the diameter of the lamellae or the support ring 18 is disposed between support ring 18 and the lowermost lamella 15 of the laminated core, said tolerance compensation element being embodied as an elastomer ring or as a metal corrugated washer.
  • a rotor can or pot 24 is introduced into the motor housing 14 as depicted in FIG. 1 which is concentrically enclosed by the stator 12 on the outside and the interior 26 of which accommodates the rotor (not depicted) of the electric motor 10 .
  • the assembly takes place by the mating of the stator 12 and the engaging of the latching lugs 20 on the uppermost lamella 13 of the laminated core after excessive pressure has been applied to the elastic tolerance compensation element 22 .
  • the axial bracing of the rotor 12 achieved in the process does not have to absorb any tolerances in the circumferential direction.
  • the snap hooks 16 in contrast to the first exemplary embodiment, are configured on or fastened to a flange ring 28 formed from the pot 24 .
  • the length of the snap hooks 30 and thus the required tolerance compensation is reduced in contrast to the first and second exemplary embodiment.
  • the laminated core of the stator 12 is configured in a stepped manner in the axial extension thereof, and the latching lugs 32 of the snap hooks 30 engage on a ledge 34 in the assembled state.
  • the ledge 34 is thereby formed by means of the selection of two different sheet metal ring thicknesses.
  • stator The mounting of a stator described above is, of course, not limited to the installation in a coolant pump but can be universally used for electric motors in a variety of applications.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Motor Or Generator Frames (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The invention relates to a cooling circuit pump for a motor vehicle, having a stator which is arranged in a motor housing (14) and in which a rotatably mounted rotor is received. It is proposed that the stator (12) is received in the motor housing (14) in a positively locking manner.

Description

  • The invention relates to a cooling circuit pump for a motor vehicle.
  • The German patent publication DE 10 2009 028 144 A1 discloses a cooling circuit pump for a motor vehicle, the former having a hydraulic part as well as an electric motor. When such water pumps are used in the automotive field, said pumps are exposed to considerable vibration and temperature loads. This results, for example, during use as a so-called auxiliary water pump which increases the climate comfort in the motor vehicle, improves the flow of the coolant and supports the heating circuit. In so doing, the use of residual heat is facilitated when the engine is turned off. It is known from the prior art how to fasten the stator of the electric motor to the motor housing by means of screw or adhesively bonded connections.
    • SUMMARY OF THE INVENTION
  • It is the aim of the present invention to mount the stator of the electric motor such that said stator is sufficiently fixed when inertia forces resulting from vibration loads occur and is simultaneously able to compensate for the dimensional tolerances caused by temperature.
  • In contrast to the solutions known to date, it is now proposed according to the invention that the stator is received in the motor housing in a positively locking manner. As a result, complicated production equipment is no longer required as is the case for bonding or screwing operations.
  • The stator which is constructed from a laminated core is preferably fastened by means of a snap hook device on or in the motor housing.
  • To this end, snap hooks are disposed on the inside of the laminated core radially around the circumference of the motor housing in a distributed manner, said snap hooks engaging around the laminated core in a positively locking manner with the aid of latching lugs formed on the ends thereof. The snap hooks are thereby attached to a support ring, wherein support ring and snap hooks are preferably configured as one piece with the motor housing, e.g. manufactured by means of an injection molding process.
  • A tolerance compensation element is disposed between support ring and the laminated core of the stator, which element, as previously mentioned, ensures that expansions due to temperature can be absorbed. In addition, the tolerance compensation element allows the stator to be easily mounted in the motor housing.
  • In a second advantageous embodiment, the snap hooks are fastened to a rotor can.
  • A further modified embodiment consists of the laminated core having a step or ledge on which the latching lugs of the snap hooks engage.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 shows a cross section through an electric motor of a cooling circuit pump.
  • FIG. 2 shows a corresponding top view of the electric motor.
  • FIG. 3 shows a cross section through an electric motor of a cooling circuit pump in a second embodiment and
  • FIG. 4 shows a cross section through an electric motor of a cooling circuit pump in a third embodiment.
    •  DETAILED DESCRIPTION
  • In FIG. 1, an electric motor is depicted in cross section, which preferably is used in cooling circuit pumps in the automotive field. Design and function of such cooling circuit pumps are generally known, for example from the German patent publication DE 10 2009 028 144 A1 cited at the beginning of the application. The disclosure content of said patent publication will be explicitly referred to if necessary.
  • Only the components of the cooling circuit pump are however described below which are necessary to explain the invention. The stator 12 comprising a laminated core is received in a motor housing 14 of the electric motor 10. In order to mount the stator 12 in a positively locking manner, six snap hooks 16 are provided which are uniformly distributed on the circumference of the motor housing 14. The snap hooks 16 attach thereby in the region of a support ring 18 which is preferably manufactured as one piece together with the snap hooks 16 and the motor housing 14 in an injection molding process. The snap hooks 16 have corresponding latching lugs 20 on the free ends thereof, said latching lugs engaging in a positively locking manner around the uppermost lamella 13 of the laminated core in the installed state; thus enabling the entire laminated core to be reliably fixed in the motor housing 14. A tolerance compensation element 22 which is correspondingly matched to the diameter of the lamellae or the support ring 18 is disposed between support ring 18 and the lowermost lamella 15 of the laminated core, said tolerance compensation element being embodied as an elastomer ring or as a metal corrugated washer.
  • Because the electric motor 10 has to be reliably sealed off from the hydraulic part of the cooling circuit pump during installation, a rotor can or pot 24 is introduced into the motor housing 14 as depicted in FIG. 1 which is concentrically enclosed by the stator 12 on the outside and the interior 26 of which accommodates the rotor (not depicted) of the electric motor 10.
  • The assembly takes place by the mating of the stator 12 and the engaging of the latching lugs 20 on the uppermost lamella 13 of the laminated core after excessive pressure has been applied to the elastic tolerance compensation element 22. In comparison to a radial mounting of the stator, for example by means of screws or adhesive bonding, the axial bracing of the rotor 12 achieved in the process does not have to absorb any tolerances in the circumferential direction.
  • In a second exemplary embodiment pursuant to FIG. 3 in which identical components are provided with the identical reference numerals, the snap hooks 16, in contrast to the first exemplary embodiment, are configured on or fastened to a flange ring 28 formed from the pot 24.
  • In a third exemplary embodiment (see FIG. 4), in which identical components are once again provided with identical reference numerals, the length of the snap hooks 30 and thus the required tolerance compensation is reduced in contrast to the first and second exemplary embodiment. In this case, the laminated core of the stator 12 is configured in a stepped manner in the axial extension thereof, and the latching lugs 32 of the snap hooks 30 engage on a ledge 34 in the assembled state. The ledge 34 is thereby formed by means of the selection of two different sheet metal ring thicknesses.
  • The mounting of a stator described above is, of course, not limited to the installation in a coolant pump but can be universally used for electric motors in a variety of applications.

Claims (8)

1. A cooling circuit pump for a motor vehicle, having a stator (12) which is arranged in a motor housing (14) and in which a rotatably mounted rotor is received, characterized in that the stator (12) is received in the motor housing (14) in a positively locking manner.
2. The cooling circuit pump according to claim 1, characterized in that the stator (12) comprises a laminated core which is mounted by means of a snap hook device (16, 30) in the motor housing (14).
3. The cooling circuit pump according to claim 2, characterized in that snap hooks (16, 30) are disposed on an inside of the laminated core radially around a circumference of the motor housing (14) in a distributed manner, wherein latching lugs (20, 32) formed on an end of the snap hooks (16, 30) engage around the laminated core in a positively locking manner.
4. The cooling circuit pump according to claim 3, characterized in that the snap hooks (16) are attached to a support ring (18).
5. The cooling circuit pump according to claim 4, characterized in that a tolerance compensation element (22) is disposed between the support ring (18) and the laminated core.
6. The cooling circuit pump according to claim 3, characterized in that the snap hooks (16) are fastened to a rotor can (24) disposed between the stator (12) and the rotor.
7. The cooling circuit pump according to claim 3, characterized in that the laminated core of the stator (12) has a step or a ledge (34) in an axial extension thereof, on which the latching lugs (32) of the snap hooks (30) engage.
8. The cooling circuit pump according to claim 3, characterized in that the snap hooks (16) are attached to a support ring (18) which is manufactured as one piece together with said snap hooks (16) and the motor housing (14).
US14/348,835 2011-09-30 2012-08-02 Cooling circuit pump for a motor vehicle Abandoned US20140241912A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102011083868.6 2011-09-30
DE102011083868A DE102011083868A1 (en) 2011-09-30 2011-09-30 Cooling circuit pump for a motor vehicle
PCT/EP2012/065156 WO2013045144A1 (en) 2011-09-30 2012-08-02 Cooling circuit pump for a motor vehicle

Publications (1)

Publication Number Publication Date
US20140241912A1 true US20140241912A1 (en) 2014-08-28

Family

ID=46642505

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/348,835 Abandoned US20140241912A1 (en) 2011-09-30 2012-08-02 Cooling circuit pump for a motor vehicle

Country Status (5)

Country Link
US (1) US20140241912A1 (en)
EP (1) EP2761185B1 (en)
CN (1) CN103827503B (en)
DE (1) DE102011083868A1 (en)
WO (1) WO2013045144A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160072354A1 (en) * 2013-04-15 2016-03-10 Siemens Aktiengesellschaft Electrical machine having a housing over a partial circumference
GB2564119A (en) * 2017-07-03 2019-01-09 Vent Axia Group Ltd A chassis for mounting an electric motor and ventilation apparatus incorporating the same
EP3431771A1 (en) * 2017-07-21 2019-01-23 Nidec Corporation Motor, blowing device, and cleaner
US20190084402A1 (en) * 2017-09-21 2019-03-21 Schaeffler Technologies AG & Co. KG Hybrid motor vehicle drive train including hybrid module baffle blade
US10428922B2 (en) * 2017-12-14 2019-10-01 Schaeffler Technologies AG & Co. KG Hybrid motor vehicle drive train including hybrid module baffle blade

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020112037A1 (en) * 2020-05-05 2021-11-11 Audi Aktiengesellschaft Rotor for an electric machine
DE102021212722A1 (en) 2021-11-11 2023-05-11 Vitesco Technologies GmbH Fluid pump, motor vehicle, use and manufacturing process

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4007867A (en) * 1974-09-05 1977-02-15 General Electric Company Method of making resiliently compressed laminated core for a dynamoelectric machine
US5610462A (en) * 1993-06-22 1997-03-11 Nidec Corporation Brushless motor
US7015610B2 (en) * 2003-09-01 2006-03-21 Sunonwealth Electric Machine Industry Co., Ltd. Axial tube assembly for a motor
US20090195117A1 (en) * 2008-01-10 2009-08-06 Parmeter Larry J Electric submersible pump (esp) having a motor with mechanically locked stator laminations
US9030065B2 (en) * 2009-01-02 2015-05-12 Robert Bosch Gmbh Electronically commutated electric machine

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2751516A1 (en) * 1977-11-18 1979-05-23 Hanning Elektro Werke Circulating pump for heating installations - has pump and motor constructed as one unit which is easily dismantled for maintenance
CH672699A5 (en) * 1986-11-01 1989-12-15 Papst Motoren Gmbh & Co Kg
DE3844926C2 (en) * 1988-02-01 1996-05-15 Bosch Siemens Hausgeraete Vane wheel drain pump for laundry or dishwashing machines
DE4441378A1 (en) * 1994-11-21 1996-05-30 Wilo Gmbh Can of a centrifugal pump
DE19842170A1 (en) * 1998-09-15 2000-03-16 Wilo Gmbh Contacting motor windings
DE19903817A1 (en) * 1999-02-02 2000-08-10 Bosch Gmbh Robert Cooling water pump
JP3588455B2 (en) * 2002-01-23 2004-11-10 三菱電機株式会社 Manufacturing method of rotation angle detector
JP3962287B2 (en) * 2002-07-01 2007-08-22 多摩川精機株式会社 Stator structure for rotation detector
CN1320727C (en) * 2003-09-19 2007-06-06 建准电机工业股份有限公司 Motor axle tube assembly
DE102004058591A1 (en) * 2004-11-26 2006-06-01 Laing, Oliver Circulation pump and method for producing a circulation pump
DE102005039557A1 (en) * 2005-08-22 2007-03-01 Robert Bosch Gmbh rotary pump
CN101501958B (en) * 2006-07-26 2011-10-26 三菱电机株式会社 Electric rotating machine
DE102009028144A1 (en) 2009-07-31 2011-02-03 Robert Bosch Gmbh Fluid pump device with sealing device
CN201750312U (en) * 2010-08-17 2011-02-16 莱克电气股份有限公司 Variable frequency motor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4007867A (en) * 1974-09-05 1977-02-15 General Electric Company Method of making resiliently compressed laminated core for a dynamoelectric machine
US5610462A (en) * 1993-06-22 1997-03-11 Nidec Corporation Brushless motor
US7015610B2 (en) * 2003-09-01 2006-03-21 Sunonwealth Electric Machine Industry Co., Ltd. Axial tube assembly for a motor
US20090195117A1 (en) * 2008-01-10 2009-08-06 Parmeter Larry J Electric submersible pump (esp) having a motor with mechanically locked stator laminations
US9030065B2 (en) * 2009-01-02 2015-05-12 Robert Bosch Gmbh Electronically commutated electric machine

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160072354A1 (en) * 2013-04-15 2016-03-10 Siemens Aktiengesellschaft Electrical machine having a housing over a partial circumference
US9866086B2 (en) * 2013-04-15 2018-01-09 Siemens Aktiengesellschaft Electrical machine having a housing over a partial circumference
GB2564119A (en) * 2017-07-03 2019-01-09 Vent Axia Group Ltd A chassis for mounting an electric motor and ventilation apparatus incorporating the same
GB2564119B (en) * 2017-07-03 2021-12-22 Vent Axia Group Ltd A chassis for mounting an electric motor and ventilation apparatus incorporating the same
EP3431771A1 (en) * 2017-07-21 2019-01-23 Nidec Corporation Motor, blowing device, and cleaner
US20190084402A1 (en) * 2017-09-21 2019-03-21 Schaeffler Technologies AG & Co. KG Hybrid motor vehicle drive train including hybrid module baffle blade
US10399427B2 (en) * 2017-09-21 2019-09-03 Schaeffler Technologies AG & Co. KG Hybrid motor vehicle drive train including hybrid module baffle blade
US10428922B2 (en) * 2017-12-14 2019-10-01 Schaeffler Technologies AG & Co. KG Hybrid motor vehicle drive train including hybrid module baffle blade

Also Published As

Publication number Publication date
WO2013045144A1 (en) 2013-04-04
CN103827503B (en) 2016-08-24
EP2761185B1 (en) 2019-01-09
EP2761185A1 (en) 2014-08-06
DE102011083868A1 (en) 2013-04-04
CN103827503A (en) 2014-05-28

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Legal Events

Date Code Title Description
AS Assignment

Owner name: ROBERT BOSCH GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BRAUN, JOHANN;SCHMID, JOERG;MAHFOUDH, SAMIR;REEL/FRAME:032565/0857

Effective date: 20131111

STCB Information on status: application discontinuation

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