WO2009015946A1 - Moteur électrique - Google Patents

Moteur électrique Download PDF

Info

Publication number
WO2009015946A1
WO2009015946A1 PCT/EP2008/057981 EP2008057981W WO2009015946A1 WO 2009015946 A1 WO2009015946 A1 WO 2009015946A1 EP 2008057981 W EP2008057981 W EP 2008057981W WO 2009015946 A1 WO2009015946 A1 WO 2009015946A1
Authority
WO
WIPO (PCT)
Prior art keywords
electric motor
cavities
motor according
housing
umlenknuten
Prior art date
Application number
PCT/EP2008/057981
Other languages
German (de)
English (en)
Inventor
Peter Bucher
Thomas Sippel
Original Assignee
Continental Automotive 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 Continental Automotive Gmbh filed Critical Continental Automotive Gmbh
Publication of WO2009015946A1 publication Critical patent/WO2009015946A1/fr

Links

Classifications

    • 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

Definitions

  • the present invention relates to an electric motor having a rotor and a stator and a housing which surrounds the stator at least partially and a plurality of interconnected cavities for receiving a Kuhlmannmaschine, wherein at least one inlet and one outlet opening for supplying or discharging the Kuhlmannmaschine provided are, which are interconnected via the cavities such that between the inlet and the outlet at least one circulation path for carrying the Kuhlmannmaschine is formed.
  • the object of the present invention is to provide a simple and inexpensive cooling of an electric motor at your disposal, which is space-saving and at the same time ensures efficient heat dissipation.
  • the object is achieved by an electric motor of the type described above, in which the housing has a central hollow cylindrical Gehause Scheme and two end bearing plates, wherein in the wall of the middle Gehauserioses several open to both end faces cavities are formed and in the end shields and / or Umlenknuten are formed in the end surfaces of the middle Gehause Symposium, each connecting at least two of the cavities.
  • the advantage of the electric motor according to the invention is that the electric motor has a compact external shape due to the hollow cylindrical region and is thus suitable for close spatial relationships, for example in the engine compartment in hybrid vehicles.
  • the housing is built in three parts, which in particular simplifies the manufacture and assembly. Due to the design of the Umlenknuten also the additional design effort is minimal, since separate measures for deflecting the Kuhlmediums are not required. By the Umlenknuten a defined connection between the cavities is ensured, which cause the housing itself is Flusstechniksgekuhlt.
  • the cavities in the middle Gehause Siemens are arranged uniformly distributed in the circumferential direction of the housing, d. H. the cooling of the engine takes place over 360 °. As a result, the electric motor is cooled uniformly such that the formation of hot springs is effectively prevented.
  • the cavities have a flattened cross section in order to minimize the Gehauseab distren and at the same time not run the cavities for the circulation path too small.
  • the radial height of the cavities amounts to at least 2 mm, preferably 3 mm, since these dimensions result in particularly favorable flow conditions at the usual flow rates.
  • the provision of cavities for cooling does not unnecessarily increase the radial dimensions of the electric motor. If the cavities were made smaller in height, the flow resistances that occur would increase relatively sharply, which would require a higher pumping capacity and would mean at least a poorer cooling.
  • the Kuhlwasserbowung is turbulent within the cavities, so that the heat absorption by convection is as large as possible, ie it can be recorded as much heat. The turbulent flow prevents a laminar flow, in contrast to the turbulent flow ultimately only a part of the Kuhlmediums was used for heat absorption.
  • the cavities are connected maanderformig on the Umlenknuten.
  • the largest possible area of the peripheral surface can be flowed around by cooling liquid.
  • the meandering shape allows a greater flow rate of Kuhlmediums with a related to the peripheral area large-area Warmeübergangsflache, whereby the efficiency of the cooling is improved.
  • the circulation path has a continuous cross-sectional area in order to allow the most uniform possible flow, due to which the cooling is as uniform as possible.
  • the inlet and the outlet opening are provided in the end shields. Since the attachment of the electric motor takes place on the end shields, the connections can be easily integrated. As a result, the side surfaces of terminals are kept free, so that the electric motor, inter alia, better use and also space-saving obstruct.
  • the formation of the inlet and outlet openings in the end shields is particularly appropriate when the Umlenknuten are formed in the end shields.
  • End shields are arranged diametrically opposite and in the flow direction two parallel circulation paths are formed, each extending over a half-shell-shaped portion of the housing, wherein the inlet and the demandingo réelle each centered in one of the Umlenknuten.
  • the housing is cylindrical on the outside. As a result, let the electric motor according to the invention be installed even in very close conditions.
  • the middle housing part is extruded.
  • the electric motors have the same diameter and can be adjusted by changes in length. Since the middle housing part is initially present as an extruded profile, this housing part can be made by simply trimming to the desired size.
  • the Umlenknuten can be incorporated after Abrac in a separate step between adjacent channels to achieve the desired overcurrent from one cavity into the adjacent cavity.
  • the end shields can then be designed as simple circular plates with corresponding holes as inflow and Abschreibo réelleen.
  • the formation of the Umlenknuten in the end shields has the advantage that the incorporation of Umlenknuten omitted in the extruded profile and the advantages of easy production of an extruded profile can be maintained.
  • Fig. 1 shows schematically an isometric view of an electric motor with a maanderformigen cooling
  • Fig. 2 is an oblique view of a bearing plate of
  • Fig. 3 shows a section transverse to the axis of rotation through the middle Gehauserios of the electric motor
  • FIG. 1 an electric motor 10 is shown, was omitted in the sake of clarity on the representation of the rotor and the stator.
  • the electric motor 10 is formed with a middle Gehause Society 12 and two end bearing plates 14, 16.
  • the middle Gehause Society 12 is formed as a hollow cylinder, so that it surrounds the stator.
  • the housing 12 is cylindrical on the outside, so that it can be used even in confined Platzverhaltnissen.
  • the inner cross section of the middle Gehause Schemes 12 may be formed in addition to the circular shape shown also correspondingly ellipsoidal or polygonal. This can of course also be a change in the outer shape of the middle Gehause Schemes 12 and the end shields 14, 16 connected.
  • cavities 18 are provided (see Fig. 3) which are interconnected and serve to accommodate a Kuhlmannmaschine which receives the heat generated in the engine 10 and transported away, so as to cool the motor 10.
  • the cavities 18 run parallel to one another and are connected maanderformig via Umlenknuten 20, which are provided in the exemplary embodiment shown in the end shields 14, 16 (see FIG. 2).
  • a Zulaufo réelle 22 for supplying the Kuhlmannmaschine and a drain opening 24 for Kuhlmannmaschine discharges are provided, which are interconnected via the cavities 18, which form a circulation path for the Kuhlmannmaschine.
  • the circulation path is formed as two in the flow direction parallel running circulation paths, each extending over a half-shell-shaped portion of the housing.
  • the inlet opening 22 is provided centrally in one of the deflection grooves 20, from which one of the cavities 18 extends on each side.
  • the two cavities 18 mouth at their opposite end in each of a further of the Umlenknuten 20, each passing into a further of the cavities 18, wherein per circulation path six of the cavities 18 and five of the Umlenknuten 20 are passed before the last of the cavities 18 in the one who
  • circulation paths may be formed, for. B. can also be provided only a circulation path.
  • the arrangement of the inlet and outlet opening 22, 24 can be varied, so they can for example also be arranged side by side. Depending on the width of the cross-sectional areas of the cavities 18 and the size of the motor 10, the number of cavities 18 and the associated number of Umlenknuten 20 vary.
  • the cavities 18 are gleichintuitig over the entire
  • the Umlenknuten 20 are rounded in particular in the direction of flow seen in the outer edge regions, or curved like to minimize the force acting on the circulating Kuhlmedium friction resistance and the associated losses.
  • holes 26 are provided for receiving a screw connection of the bearing plates 14, 16 in the middle housing part 12, which also serve the motor suspension, so that externally applied screw eyes can be avoided.
  • the holes 26 may be formed continuously.
  • the size and number of cavities 18 can vary.
  • the cavities 18 all have the same flattened cross-section.
  • the radial height of the cavities is at least 2 mm, with a height of 3 mm has proven to be particularly advantageous. Due to the cross-sectional shape let a turbulent Kuhlwasserbowung within the cavities 18 for optimal heat absorption can be achieved. For a uniform as possible through-flow, the circulation path has a continuous cross-sectional area.
  • the middle Gehause Council 12 is made in one piece as an extruded profile, depending on the engine length of different lengths Gehause Schemee 12 can be timed to allow use in engines with different performance.
  • the motor 10 according to the invention is suitable for use in engine series, as used in automobile manufacturers, for example in the various vehicle classes with their different performance classes.
  • the middle housing area 12 can also be produced as a die-cast part, which is particularly suitable when the deflection grooves 20 are formed on the end sides of the middle housing area 12.
  • the end shields 14, 16 are designed as aluminum die-cast parts, although of course other materials and other production methods can be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

La présente invention concerne un moteur électrique (10) comprenant un rotor et un stator, ainsi qu'un logement qui entoure au moins partiellement le stator et qui présente plusieurs cavités (18) reliées les unes aux autres, conçues pour recevoir un liquide de refroidissement. Au moins un orifice d'entrée (22) et un orifice de sortie (24), conçus pour permettre l'entrée ou la sortie du liquide de refroidissement, sont reliés l'un à l'autre par les cavités (18) de manière à former une voie de circulation entre l'entrée (22) et la sortie (24), laquelle voie permet de guider le liquide de refroidissement. L'objectif de l'invention est de réaliser une opération de refroidissement simple et économique du moteur électrique (10), laquelle opération ne devant pas nécessiter beaucoup de place et devant permettre une dissipation efficace de la chaleur. A cette fin, le logement présente un zone médiane en forme de cylindre creux (12) et deux flasques frontales (14, 16). La paroi de la zone médiane du logement (12) comporte plusieurs cavités (18) qui sont ouvertes en direction des deux faces frontales, et les flasques (14, 16) et/ou les faces frontales de la zone médiane du logement (12) comportent des rainures déflectrices (20) qui relient respectivement au moins deux des cavités (18).
PCT/EP2008/057981 2007-07-27 2008-06-24 Moteur électrique WO2009015946A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007035271.0 2007-07-27
DE102007035271A DE102007035271A1 (de) 2007-07-27 2007-07-27 Elektromotor

Publications (1)

Publication Number Publication Date
WO2009015946A1 true WO2009015946A1 (fr) 2009-02-05

Family

ID=40157305

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/057981 WO2009015946A1 (fr) 2007-07-27 2008-06-24 Moteur électrique

Country Status (2)

Country Link
DE (1) DE102007035271A1 (fr)
WO (1) WO2009015946A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104769817A (zh) * 2012-04-03 2015-07-08 宝马股份公司 电机
CN107925305A (zh) * 2015-08-21 2018-04-17 大陆汽车有限公司 用于电动机器的冷却系统
EP3661027A1 (fr) * 2018-11-29 2020-06-03 Valeo Siemens eAutomotive Germany GmbH Logement de stator pour machine électrique, machine électrique pour véhicule et véhicule
WO2022065140A1 (fr) * 2020-09-25 2022-03-31 三菱重工エンジン＆ターボチャージャ株式会社 Machine électrique tournante
WO2022180874A1 (fr) * 2021-02-26 2022-09-01 日本電産株式会社 Machine électrique tournante et dispositif d'entraînement

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Publication number Priority date Publication date Assignee Title
US8161643B2 (en) * 2007-09-20 2012-04-24 Arvinmeritor Technology, Llc Method for forming a cooling jacket for an electric motor
EP2330720B1 (fr) * 2009-12-04 2012-08-15 ebm-papst Mulfingen GmbH & Co. KG Moteur électrique à rotor extérieur doté d'un carter et d'un support de conducteurs formés par extrusion
EP2507897A2 (fr) 2009-12-04 2012-10-10 Dietermann GmbH & Co. KG Corps coulé à double paroi pour un moteur électrique refroidi par liquide
DE102010003246B4 (de) 2010-03-25 2018-09-13 Bayerische Motoren Werke Aktiengesellschaft Transversalflussmaschine
DE102010050348B4 (de) 2010-11-05 2022-05-25 Sew-Eurodrive Gmbh & Co Kg Elektromotor und Bausatz zu seiner Herstellung
AT510446B1 (de) * 2010-11-18 2012-04-15 Avl List Gmbh Elektrische maschine
DE102011008523B4 (de) * 2011-01-13 2015-03-26 Sew-Eurodrive Gmbh & Co Kg Elektromotor
EP2479874A1 (fr) * 2011-01-24 2012-07-25 Siemens Aktiengesellschaft Chemise de refroidissement dotée d'un système de refroidissement sous forme de méandres
WO2013187837A2 (fr) 2012-06-12 2013-12-19 Husqvarna Ab Système de coupe électrique
DE102012022452B4 (de) 2012-11-09 2018-04-05 Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg Elektrische Maschine und Kraftfahrzeug-Antriebsstrang
US20140217841A1 (en) * 2012-12-14 2014-08-07 Brammo, Inc. High efficiency, low coolant flow electric motor coolant system
DE102012112923A1 (de) * 2012-12-21 2014-06-26 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Elektromaschine
DE102015200096A1 (de) * 2015-01-08 2015-12-17 Schaeffler Technologies AG & Co. KG Kühlmantelanordnung für einen Elektromotor sowie elektrischer Antrieb für ein Fahrzeug mit der Kühlmantelanordnung
CN204810041U (zh) * 2015-04-01 2015-11-25 大陆汽车投资（上海）有限公司 定子外壳和用于容纳定子的装置
WO2020126076A1 (fr) * 2018-12-20 2020-06-25 Sew-Eurodrive Gmbh & Co. Kg Moteur électrique doté d'une partie boîtier de stator
DE102020206000A1 (de) * 2019-10-10 2021-04-15 Robert Bosch Gesellschaft mit beschränkter Haftung Elektrische Maschine mit Bypass-Kühlkanal
US11732638B2 (en) * 2019-11-26 2023-08-22 Garrett Transportation I Inc. E-charger with longitudinal cooling passage
DE102021123317A1 (de) 2021-09-09 2023-03-09 Bayerische Motoren Werke Aktiengesellschaft Gehäuse mit mäanderförmigem Kühlmittelkanal für eine elektrische Maschine
EP4220912A1 (fr) * 2022-01-28 2023-08-02 Etel S.A. Ensemble cage de refroidissement destiné à un moteur électrique rotatif

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EP0585644A1 (fr) * 1992-09-03 1994-03-09 Licentia Patent-Verwaltungs-GmbH Machine électrique entièrement fermée, refroidie en surface par liquide
WO1997044882A1 (fr) * 1996-05-20 1997-11-27 Abb Daimler-Benz Transportation Austria Gmbh Systeme de refroidissement a liquide pour moteurs electriques
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JPH10225060A (ja) * 1997-02-07 1998-08-21 Hitachi Ltd 車両用発電機及び車両用冷却装置
DE19757605A1 (de) * 1997-12-23 1999-06-24 Siemens Ag Elektromotor mit Kühlung
WO2003100946A1 (fr) * 2002-05-28 2003-12-04 Emerson Electric Co. Chemise de refroidissement pour machines electriques
US20050235672A1 (en) * 2004-04-26 2005-10-27 Hsu John S Motor frame cooling with hot liquid refrigerant and internal liquid
DE102005002897A1 (de) * 2004-04-13 2005-11-10 Vem Motors Gmbh Flüssigkeitsgekühlte elektrische Maschine mit Gussgehäuse

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FR2658959B1 (fr) * 1990-02-26 1995-03-24 Valeo Equip Electr Moteur Dispositif de refroidissement pour machine tournante electrique, notamment pour alternateur de vehicule automobile.
DE4229395C2 (de) * 1992-09-03 1995-06-08 Licentia Gmbh Oberflächengekühlte, geschlossene elektrische Maschine
DE10045424A1 (de) * 2000-09-14 2002-03-28 Va Tech Elin Ebg Motoren Gmbh Flüssigkeitsgekühlter Elektromotor
WO2006106086A1 (fr) * 2005-04-07 2006-10-12 Siemens Aktiengesellschaft Machine electrique a enveloppe de refroidissement par liquide

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0585644A1 (fr) * 1992-09-03 1994-03-09 Licentia Patent-Verwaltungs-GmbH Machine électrique entièrement fermée, refroidie en surface par liquide
WO1997044882A1 (fr) * 1996-05-20 1997-11-27 Abb Daimler-Benz Transportation Austria Gmbh Systeme de refroidissement a liquide pour moteurs electriques
DE19624519A1 (de) * 1996-06-20 1998-01-02 Bosch Gmbh Robert Flüssigkeitskühlung von elektrischen Maschinen
JPH10225060A (ja) * 1997-02-07 1998-08-21 Hitachi Ltd 車両用発電機及び車両用冷却装置
DE19757605A1 (de) * 1997-12-23 1999-06-24 Siemens Ag Elektromotor mit Kühlung
WO2003100946A1 (fr) * 2002-05-28 2003-12-04 Emerson Electric Co. Chemise de refroidissement pour machines electriques
DE102005002897A1 (de) * 2004-04-13 2005-11-10 Vem Motors Gmbh Flüssigkeitsgekühlte elektrische Maschine mit Gussgehäuse
US20050235672A1 (en) * 2004-04-26 2005-10-27 Hsu John S Motor frame cooling with hot liquid refrigerant and internal liquid

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104769817A (zh) * 2012-04-03 2015-07-08 宝马股份公司 电机
US9768669B2 (en) 2012-04-03 2017-09-19 Bayerische Motoren Werke Aktiengesellschaft Electric machine stator cooling system
CN107925305A (zh) * 2015-08-21 2018-04-17 大陆汽车有限公司 用于电动机器的冷却系统
US10523084B2 (en) 2015-08-21 2019-12-31 Vitesco Technologies GmbH Cooling system for an electric machine
CN107925305B (zh) * 2015-08-21 2020-05-22 大陆汽车有限公司 用于电动机器的冷却系统
EP3661027A1 (fr) * 2018-11-29 2020-06-03 Valeo Siemens eAutomotive Germany GmbH Logement de stator pour machine électrique, machine électrique pour véhicule et véhicule
US11515755B2 (en) 2018-11-29 2022-11-29 Valeo Siemens Eautomotive Germany Gmbh Stator housing for an electric machine, electric machine for a vehicle and vehicle
WO2022065140A1 (fr) * 2020-09-25 2022-03-31 三菱重工エンジン＆ターボチャージャ株式会社 Machine électrique tournante
WO2022180874A1 (fr) * 2021-02-26 2022-09-01 日本電産株式会社 Machine électrique tournante et dispositif d'entraînement

Also Published As

Publication number Publication date
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