WO2009146869A2 - Moteur électrique - Google Patents

Moteur électrique Download PDF

Info

Publication number
WO2009146869A2
WO2009146869A2 PCT/EP2009/003901 EP2009003901W WO2009146869A2 WO 2009146869 A2 WO2009146869 A2 WO 2009146869A2 EP 2009003901 W EP2009003901 W EP 2009003901W WO 2009146869 A2 WO2009146869 A2 WO 2009146869A2
Authority
WO
WIPO (PCT)
Prior art keywords
stator
cooling
electric motor
cooling channel
channel
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.)
Ceased
Application number
PCT/EP2009/003901
Other languages
German (de)
English (en)
Other versions
WO2009146869A3 (fr
Inventor
Gerhard Rehage
Jürgen Walz
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.)
Gildemeister Drehmaschinen GmbH
Original Assignee
Gildemeister Drehmaschinen 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 Gildemeister Drehmaschinen GmbH filed Critical Gildemeister Drehmaschinen GmbH
Publication of WO2009146869A2 publication Critical patent/WO2009146869A2/fr
Publication of WO2009146869A3 publication Critical patent/WO2009146869A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
    • H02K9/227—Heat sinks
    • 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
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
    • H02K9/223—Heat bridges

Definitions

  • the invention relates to an electric motor according to the preamble of claim 1.
  • Corresponding engines have a cooling device with which the engine is cooled during operation.
  • a corresponding liquid-cooled motor is known, which is surrounded by a housing with cooling jacket.
  • the cooling jacket is brought into contact with the stator of the electric motor.
  • the known cooling is not efficient, because the contact between the cooling jacket and stator is insufficient, since the stator must be inserted for mounting in the motor housing.
  • the cooling channels through which the coolant flows on the cooling jacket so that the transfer of cooling to the stator can be made only indirectly via the cooling jacket and thus is not effective.
  • the housing described for the electric motor is expensive because the coolant jacket provided with cooling jacket with another pressure-tight sleeve which encloses the cooling jacket must be provided.
  • the object of the invention is therefore to provide an electric motor of the type mentioned, whose cooling is ef-fective and in which the described disadvantages do not occur.
  • the cooling channels are formed from a helical or meander-shaped tube, which is applied either together with a heat-conductive casting material or else directly on the stator.
  • the encapsulation produces a nearly perfect thermal contact between the stator and the cooling channel.
  • the helical tube is preferably formed with a rectangular cross-section and the coil formed from a sufficiently flexible material has a slightly smaller diameter than the stator, so that spread the helix can be pushed onto the stator and contracts elastically after sliding on and on the stator, that is largely without gap, rests.
  • FIG. 1 shows a first embodiment according to the invention of the electric motor in a longitudinal sectional view
  • FIG. 2 shows a second embodiment according to the invention of the electric motor in a longitudinal sectional view
  • FIG. 3 shows a third embodiment according to the invention of the electric motor in a longitudinal sectional view.
  • the electric motor formed by a rotor 1 and a stator 2 with the motor axis A is shown in longitudinal section view.
  • the cooling device 3 is arranged on the stator 2 and has inter alia a helical cooling channel 3 a, through which a coolant flows.
  • the stator 2 and the cooling channel 3a are in thermal contact, the cooling channel 3a at least partially rests on the surface of the stator 2 and on the clamping rings 2a, 2d.
  • the clamping rings 2a, 2d encompass areas of the winding head 2c in a form-fitting manner; For this the winding head 2c is surrounded by a preferably heat-conductive first potting material.
  • the cooling channel 3 a is also cast with a heat-conductive potting material 3 b, thus forming a type of sleeve which is arranged around the stator 3.
  • This arrangement ensures that on the one hand the thermal contact between the cooling device 3 and the stator 2 is improved, on the other hand a more homogeneous temperature distribution is created along the stator 2, so that the cooling becomes more effective.
  • the potting material 2d or 3b is preferably a synthetic resin, but other materials are also contemplated.
  • FIG. Another embodiment is shown in FIG.
  • the same components are provided here with identical reference numerals, so reference is made to the description of the above statements to the first embodiment.
  • the helical cooling channel 3a On the surface of the stator 2, the helical cooling channel 3a is again seen, but not with a round but with a rectangular or square cross-section.
  • the stator 2 facing sides 3a x of the cooling channel 3a can be as flat on the stator 2 and the resting tension rings 2a, 2b and so establish the thermal contact.
  • the helically formed cooling channel 3a does not have to be potted with a potting material or surrounded by a thermally conductive medium, as is the case in the first embodiment.
  • the cooling channel 3a consists of an elastic material.
  • the helix formed by the cooling channel 3a has in the non-elastically deformed, ie relaxed state a diameter which is slightly smaller than the diameter of the stator surface or the surface to which the helix is to be applied.
  • the helix is then stretched elastically and pushed onto the stator 2. Since the coil in the relaxed state has a smaller diameter than the stator, the coil is biased against the stator and is always firmly attached thereto, so that there is always a thermal contact between the cooling channel 3a and stator 2.
  • the electric motor formed by a rotor 1 and a stator 2 with the motor axis A is shown in longitudinal section view.
  • the cooling device 3 is arranged on the stator 2 and has inter alia a meandering cooling channel 3a through which a coolant flows.
  • the stator 2 and the cooling channel 3a are in thermal contact, the cooling channel 3a at least partially rests on the surface of the stator 2 and on the clamping rings 2a, 2d.
  • the clamping rings 2a, 2d encompass areas of the winding head 2c form fit;
  • the winding head 2c is surrounded by a preferably heat-conductive first potting material.
  • the cooling channel 3a is also cast with a heat-conductive potting material 3b and thus forms a Art cuff, which is arranged around the stator 3 around.
  • This arrangement ensures that on the one hand the thermal contact between the cooling device 3 and the stator 2 is improved, on the other hand a more homogeneous temperature distribution is created along the stator 2, so that the cooling becomes more effective.
  • the potting material 2d or 3b is preferably a synthetic resin, but other materials are also contemplated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

L’invention concerne un moteur électrique présentant un rotor (1) et un stator (2). Un système de refroidissement (3) permet de refroidir le stator (2). Le système de refroidissement (3) présente un canal de refroidissement (3a) à travers lequel peut circuler un fluide de refroidissement, et qui est scellé par un matériau de scellement (3b) et agencé au moins par endroits sur la surface du stator (2).
PCT/EP2009/003901 2008-06-05 2009-05-30 Moteur électrique Ceased WO2009146869A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008027002A DE102008027002A1 (de) 2008-06-05 2008-06-05 Elektromotor
DE102008027002.4 2008-06-05

Publications (2)

Publication Number Publication Date
WO2009146869A2 true WO2009146869A2 (fr) 2009-12-10
WO2009146869A3 WO2009146869A3 (fr) 2010-01-28

Family

ID=41228394

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/003901 Ceased WO2009146869A2 (fr) 2008-06-05 2009-05-30 Moteur électrique

Country Status (2)

Country Link
DE (1) DE102008027002A1 (fr)
WO (1) WO2009146869A2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102035306A (zh) * 2011-01-18 2011-04-27 江西特种电机股份有限公司 一种电机的水冷却方法及其冷却装置
FR2955650A1 (fr) * 2010-01-28 2011-07-29 Phenix Internat Dispositif magnetocalorique
US10270315B2 (en) * 2015-08-19 2019-04-23 Tm4 Inc. Cast cooling arrangement for electric machines
EP3614540A1 (fr) * 2018-08-21 2020-02-26 Continental Automotive GmbH Dispositif frigorifique

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011054292A1 (de) * 2011-10-07 2013-04-11 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Elektromaschine für den Einsatz im KFZ-Bereich
DE102013210311A1 (de) * 2013-06-04 2014-12-04 Schaeffler Technologies Gmbh & Co. Kg Elektromaschine mit erhöhter elektrischer Dauerbelastbarkeit
DE102014209176A1 (de) * 2014-05-15 2015-11-19 Schaeffler Technologies AG & Co. KG Grundgehäuse für einen Radnabenmotor sowie Radnabenmotor mit dem Grundgehäuse
MX364631B (es) * 2014-09-30 2019-05-03 Nissan Motor Sistema de máquina eléctrica rotativa.
DE102016217361A1 (de) 2016-09-12 2018-03-15 Volkswagen Aktiengesellschaft Rotatorische Elektromaschine
DE102021101522B4 (de) 2021-01-25 2024-08-29 Pierburg Gmbh Antriebsvorrichtung für eine Komponente eines Verbrennungsmotors
DE102021131599A1 (de) * 2021-12-01 2023-06-01 Bayerische Motoren Werke Aktiengesellschaft Kühlkörper für ein Statorgehäuse

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0993869A (ja) * 1995-09-28 1997-04-04 Mitsubishi Electric Corp 液冷構造を有する回転機械
DE19957942C1 (de) 1999-12-02 2001-03-08 Fortuna Werke Maschf Ag Motorspindel für eine Werkzeugmaschine, insbesondere Hochfrequenz-Motorspindel
US20050235672A1 (en) * 2004-04-26 2005-10-27 Hsu John S Motor frame cooling with hot liquid refrigerant and internal liquid
DE102005043313A1 (de) * 2005-09-12 2007-03-15 Siemens Ag Rotierende elektrische Maschine mit Flüssigkeitskühlung

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2955650A1 (fr) * 2010-01-28 2011-07-29 Phenix Internat Dispositif magnetocalorique
WO2011092434A1 (fr) * 2010-01-28 2011-08-04 Phenix International Dispositif magnetocalorique
CN102035306A (zh) * 2011-01-18 2011-04-27 江西特种电机股份有限公司 一种电机的水冷却方法及其冷却装置
US10270315B2 (en) * 2015-08-19 2019-04-23 Tm4 Inc. Cast cooling arrangement for electric machines
EP3614540A1 (fr) * 2018-08-21 2020-02-26 Continental Automotive GmbH Dispositif frigorifique
WO2020038934A1 (fr) * 2018-08-21 2020-02-27 Vitesco Technologies GmbH Dispositif de refroidissement

Also Published As

Publication number Publication date
DE102008027002A1 (de) 2009-12-24
WO2009146869A3 (fr) 2010-01-28

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