WO2011009514A1 - Stator d'un véhicule hybride ou électrique, support de stator - Google Patents

Stator d'un véhicule hybride ou électrique, support de stator Download PDF

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Publication number
WO2011009514A1
WO2011009514A1 PCT/EP2010/003690 EP2010003690W WO2011009514A1 WO 2011009514 A1 WO2011009514 A1 WO 2011009514A1 EP 2010003690 W EP2010003690 W EP 2010003690W WO 2011009514 A1 WO2011009514 A1 WO 2011009514A1
Authority
WO
WIPO (PCT)
Prior art keywords
stator
cooling
carrier
ribs
segments
Prior art date
Application number
PCT/EP2010/003690
Other languages
German (de)
English (en)
Inventor
Tobias Buban
Andreas Docter
Volker Hartmann
Hans-Peter Merten
Martin Dengler
Original Assignee
Daimler Ag
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 Daimler Ag filed Critical Daimler Ag
Publication of WO2011009514A1 publication Critical patent/WO2011009514A1/fr

Links

Classifications

    • 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
    • H02K1/14—Stator cores with salient poles
    • H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
    • H02K1/148—Sectional cores
    • 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
    • H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility

Definitions

  • the invention relates to a stator of a hybrid or electric vehicle and a stator.
  • Stators and stator of the type mentioned are used for electric machines, ie electric motors and / or generators.
  • electric motors or generators have a stationary component (stator) and a component that rotates relative to it (rotor).
  • the stator is usually fixed to a housing.
  • Hybrid vehicles are known. Hybrid vehicles are referred.
  • Vehicles that have at least two different drives, usually via an electric motor in combination with an internal combustion engine. These vehicles have advantages in terms of their energy consumption over conventional
  • the stator of the electric machine has a plurality of stator windings mounted on stator (solutron) single windings whose winding ends are interconnected via a common interconnecting means by means of a plurality of connecting conductors in a predetermined manner with each other.
  • stator in the electric machine is a permanent-magnet synchronous machine in internal rotor type, the stator carries a laminated core and a winding and which is fixed by means of a stator support to a housing.
  • stator for an electric machine also a plurality of pre-wound stator windings is provided, which are arranged on a stator yoke. On a front side of the stator yoke a Verschaltungsan angel is provided.
  • a disadvantage of the known stators is that they are expensive to manufacture due to the complex cooling and that the implementation of the cooling increases the space requirement of the stators.
  • a housingless electric motor which has a designed as a stator or rotor laminated core, which is formed with channels for guiding a cooling medium.
  • the laminated core is by means of press brackets
  • At least one end-mounted sheet metal has a slot which connects at least two channels with each other.
  • a disadvantage of this is the small resulting cooling cross section of the arrangement.
  • the object of the invention is therefore to provide a stator of a hybrid and electric vehicle, which allows an improved thermal connection to the system, while having a smaller footprint and is simple and inexpensive to produce.
  • An inventive stator of a hybrid or electric vehicle has a plurality of substantially annularly arranged stator segments whose axes are aligned substantially radially.
  • the stator according to the invention further comprises a cooling device for cooling the stator during operation in order to absorb the ohmic waste heat of the stator segments, which arises during operation.
  • the cooling device has ribs formed in the stator segments, wherein the ribs form cooling channels.
  • Axial and “radial” are given in the context of the invention in relation to a rotational axis of a rotor, which together with the stator forms an electric machine, that is, for example, an electric motor and / or a generator.
  • the stator according to the invention preferably has a largely rotationally symmetrical design.
  • stator segments which form cooling channels between them, can be achieved that the ohmic heat of the stator segments can be dissipated much more directly and with higher efficiency than conventional stators.
  • Conventional stators have separate cooling devices, so that initially a heat transfer from the stator segments
  • Stator segments must take place on the cooling device.
  • the direct design of cooling channels in the stator segments thus the efficiency of the cooling device can be improved and a more efficient cooling can be realized.
  • the inventive design can be dispensed with an additional cooling jacket beyond, so that the stator according to the invention is more compact than conventional stators.
  • the invention provides that the stator has a stator, stator segments and stator are aligned with each other and the stator is designed such that the cooling device is limited by the stator.
  • the stator can be formed as part of the cooling system.
  • the stator does not have to limit each individual cooling channel, but merely form a radially outer boundary of the cooling device. Adjacent cooling channels can thus according to the invention in exchange with each other.
  • at least one of the ribs does not radially contact the stator carrier or remains free between the at least one rib and the stator carrier. In this way, between the at least one rib and the stator is a volume or the free space that can be filled with cooling medium. This increases the amount of cooling present in the cooling device and thus the cooling capacity of the
  • a preferred embodiment of the stator is a Statortopf, which is preferably made by deep drawing.
  • a Statortopf can be particularly simple and inexpensive to produce.
  • no separate self-contained cooling channels must be formed, according to this development, a particularly cost-effective stator can be specified.
  • Manufacturing process such as deep drawing.
  • the stator segments each have a stator packet segment and a winding, wherein the cooling ribs are formed in the stator packet segment.
  • the cooling ribs are formed in the stator packet segment.
  • the Statorithersegmente are preferably at least partially made by punching, wherein the cooling fins are formed during punching. In this way, the Statorithersegmente can produce particularly inexpensive.
  • the individual sheets of a Stator In a preferred substantially axial arrangement of the cooling channels, the individual sheets of a Statoreversegments the same shape and can thus be advantageously stamped with a tool.
  • the substantially axial orientation of the cooling channels also offers advantages in terms of constructional tolerance of the stator, since the cooling channels of a stator segment are structurally not directly connected to the cooling channels of an adjacent stator segment, as given for example in extending in the circumferential direction of the cooling channels is. Circumferentially oriented cooling channels extend over several
  • Stator segments away so that they must be aligned very closely to each other.
  • Another advantage of an axial alignment of the cooling channels is that the supply and discharge of coolant can be provided at axial end faces of the stator, so that the access to the cooling channels is simplified.
  • stator packet segment in the circumferential direction at the radial height of the axially extending cooling channels or the cooling region is achieved by each individual stator packet segment in the circumferential direction a spring action. This has the advantage that a bias of the individual stator packet segment in the circumferential direction a spring action.
  • the cooling channels are limited on at least one end face of the stator by at least one axially adjacent ring. In this way, the cooling channels can be completed axially in a simple and effective manner. This allows in particular the
  • stator as a delimiting element of the cooling device and further to produce this by deep-drawing, as in the stator can be avoided in this way radial undercuts in the region of the cooling device.
  • Plastic has proven to be a particularly suitable material for the axially adjacent ring, since a plastic ring can be used to achieve a good sealing of the cooling device and because plastic offers a variety of shaping possibilities.
  • An independent subject of the invention is a stator, in particular a stator according to the invention described above, wherein the stator is made by deep drawing.
  • a stator can be produced particularly inexpensively.
  • Statoras is steel. Steel can be processed particularly well by deep drawing.
  • the stator carrier according to the invention is preferably designed as a stator cup.
  • Figure 1 is a stator segment as a circular section of a stator according to the invention, which is composed of a plurality of stator segments, from an axial view.
  • FIG. 2 shows a stator according to the invention of thirty stator segments from an axial view.
  • Fig. 3 shows a partial cross section of the stator according to the invention in the radial
  • FIG. 4 shows a stator according to the prior art.
  • stator segment 4 of a stator 2 viewed in the axial direction, which is arranged within a housing 3.
  • the stator segment 4 forms a circular segment of the stator 2 composed of a plurality of stator segments 4.
  • the stator segment 4 has a stator packet segment 6, also called a stator tooth, and a winding 8.
  • the stator core segment 6 and / or the winding 8 may have insulation.
  • the stator core segment 6 is formed according to the invention as a punching package and composed of a plurality of individual stamped sheets having identical shape.
  • the sheets can thus be punched with the same tool individually or as a package.
  • a ??verstanzung there is the advantage that the individual sheets are already positively connected to each other by the Verstanzen.
  • a plurality of ribs 10 are formed, which form cooling channels 12 between them.
  • the cooling channels 12 may be filled with a cooling medium, for example a cooling liquid.
  • the stator segments 4 are accommodated radially in a stator pot 14, which bears against the stator core segment 6 and in this way forms a closed cooling region 16.
  • the Statortopf 14 limits the cooling region 16 radially outward.
  • the cooling area 16 of a stator segment 14 is limited in the axial cross-section of the stator core segment 6 and the stator cup 14.
  • additional elements may be provided.
  • the Statortopf 14 is made according to the invention of steel and formed by deep drawing.
  • the ribs 10 do not protrude radially to the Statortopf 14, so that the cooling region 16 connects a plurality of the cooling channels 12 in the radial direction with each other.
  • FIG. 2 shows the stator 2 formed by thirty stator segments 4, which is arranged inside the housing 3. Geometrically, this results in circular sections a full circle.
  • Each stator segment 4 has a stator packet segment 6 and a winding 8.
  • the Statorvolsegment 6 has in its radial part, which has no winding 8, at its axially extending surface, the adjacent
  • Stator package segment touches on a geometric shape that with a
  • FIG 3 shows a radial sectional view of a cross section of the upper part of the stator 2 according to the invention.
  • the cooling channels 12 are closed at the axial end face of the stator shown on the left by a plastic ring 18, so that a closed cooling circuit can be formed within the stator 4.
  • a supply line, not shown, and a discharge line 20 are provided via which a
  • Coolant exchange can take place.
  • the supply line of a stator segment 4 may be connected to the discharge line 20 of another, preferably adjacent, stator segment 4 of the stator 2.
  • the cooling channels 12 and cooling regions 16 can be flowed through in series or in parallel.
  • a rotor 22 is rotatably arranged relative to the stator 2 on a shaft 24 of the motor vehicle.
  • the stator 2 according to the invention is installed in a clutch bell 26 of the motor vehicle.
  • 4 shows a stator 32 according to the prior art in a radial
  • the known stator 32 has a stator core 36 with at least one winding 38. Radially outboard a stator support 40 is provided, which is made of steel.
  • the stator carrier 40 has circumferentially extending cooling channels 42 which are filled with a cooling liquid. Radially outboard, the stator 40 is closed by a housing 44, which is made for example of aluminum. In the housing 44 leads 46 and leads 48 are provided through which a coolant exchange can take place.

Landscapes

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

Abstract

L'invention concerne un stator (2) d'un véhicule hybride ou électrique, comprenant une pluralité de segments (4) de stator disposés pratiquement en cercle, dont les axes sont orientés de manière pratiquement radiale, et un dispositif de refroidissement pour refroidir le stator (2). Pour améliorer la capacité de refroidissement, le dispositif de refroidissement présente des nervures (10) formées dans les segments (4) de stator, les nervures (10) formant des canaux de refroidissement (12), le stator (2) présentant un support (14) de stator, les segments (4) et le support (14) de stator étant orientés les uns par rapport aux autres et le support (14) de stator étant conçu de telle manière que le dispositif de refroidissement soit limité par le support (14) de stator.
PCT/EP2010/003690 2009-07-22 2010-06-18 Stator d'un véhicule hybride ou électrique, support de stator WO2011009514A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009034235A DE102009034235A1 (de) 2009-07-22 2009-07-22 Stator eines Hybrid- oder Elektrofahrzeuges, Statorträger
DE102009034235.4 2009-07-22

Publications (1)

Publication Number Publication Date
WO2011009514A1 true WO2011009514A1 (fr) 2011-01-27

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ID=42953761

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/003690 WO2011009514A1 (fr) 2009-07-22 2010-06-18 Stator d'un véhicule hybride ou électrique, support de stator

Country Status (2)

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DE (1) DE102009034235A1 (fr)
WO (1) WO2011009514A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2662952A1 (fr) * 2012-05-11 2013-11-13 Siemens Aktiengesellschaft Générateur, en particulier pour éolienne
CN106134039A (zh) * 2014-04-09 2016-11-16 Zf腓特烈斯哈芬股份公司 用于电机的定子和电机
EP2549628A3 (fr) * 2011-07-18 2018-03-14 Rolls-Royce plc Composant électromagnétique pour segment de stator d'une machine électrique
EP3309784A1 (fr) 2014-07-29 2018-04-18 Telefonaktiebolaget LM Ericsson (publ) Estimation de bruit de fond dans des signaux audio
EP3438979A1 (fr) 2013-12-19 2019-02-06 Telefonaktiebolaget LM Ericsson (publ) Estimation de bruit de fond dans des signaux audio
CN110546856A (zh) * 2016-08-03 2019-12-06 智能电机解决方案私人有限公司 电机
CN111049290A (zh) * 2019-12-20 2020-04-21 华为技术有限公司 铁芯和电机

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011114280A1 (de) 2011-09-26 2013-03-28 Daimler Ag Stator einer elektrischen Maschine
DE102012023050A1 (de) 2012-11-26 2014-05-28 Volkswagen Aktiengesellschaft Elektrische Maschine und Verfahren zur Herstellung einer elektrischen Maschine
DE102013006857A1 (de) 2013-04-22 2014-10-23 Volkswagen Aktiengesellschaft Elektrische Maschine, insbesondere für eine Hybridantriebsanordnung eines Kraftfahrzeuges
DE102021214488A1 (de) 2020-12-18 2022-06-23 Zf Friedrichshafen Ag Kühlanordnung zur Kühlung eines Stators für eine elektrische Maschine
DE102021106341A1 (de) 2021-03-16 2022-09-22 Ebm-Papst Mulfingen Gmbh & Co. Kg Elektromotor mit verbesserter Motorausnutzung
DE102022213189A1 (de) 2022-12-07 2024-06-27 Zf Friedrichshafen Ag Kühlanordnung zur Kühlung eines Stators für eine elektrische Maschine

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JPH114554A (ja) * 1997-06-13 1999-01-06 Meidensha Corp 回転電機
DE19920127C2 (de) 1999-05-03 2001-05-31 Mannesmann Sachs Ag Stator für eine elektrische Maschine und Verfahren zur Herstellung eines Stators
AT412311B (de) 1995-03-14 2004-12-27 Daimler Chrysler Ag Gehäuseloser elektromotor
US20060066159A1 (en) * 2004-09-30 2006-03-30 Yuji Enomoto Fluid-passage built-in type electric rotating machine
US20070114877A1 (en) * 2004-03-23 2007-05-24 Weirong Wang End cap for interconnecting winding coils of segmented stator to reduce phase-on-phase conditions and associated methods
DE102006035697A1 (de) * 2006-08-01 2008-02-07 Temic Automotive Electric Motors Gmbh Maschinengehäuse einer elektrischen Maschine
DE102006034945A1 (de) 2006-07-28 2008-04-10 Zf Friedrichshafen Ag Antriebsanordnung für ein Hybridfahrzeug

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT412311B (de) 1995-03-14 2004-12-27 Daimler Chrysler Ag Gehäuseloser elektromotor
JPH114554A (ja) * 1997-06-13 1999-01-06 Meidensha Corp 回転電機
DE19920127C2 (de) 1999-05-03 2001-05-31 Mannesmann Sachs Ag Stator für eine elektrische Maschine und Verfahren zur Herstellung eines Stators
US20070114877A1 (en) * 2004-03-23 2007-05-24 Weirong Wang End cap for interconnecting winding coils of segmented stator to reduce phase-on-phase conditions and associated methods
US20060066159A1 (en) * 2004-09-30 2006-03-30 Yuji Enomoto Fluid-passage built-in type electric rotating machine
DE102006034945A1 (de) 2006-07-28 2008-04-10 Zf Friedrichshafen Ag Antriebsanordnung für ein Hybridfahrzeug
DE102006035697A1 (de) * 2006-08-01 2008-02-07 Temic Automotive Electric Motors Gmbh Maschinengehäuse einer elektrischen Maschine

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2549628A3 (fr) * 2011-07-18 2018-03-14 Rolls-Royce plc Composant électromagnétique pour segment de stator d'une machine électrique
EP2662952A1 (fr) * 2012-05-11 2013-11-13 Siemens Aktiengesellschaft Générateur, en particulier pour éolienne
CN103390942A (zh) * 2012-05-11 2013-11-13 西门子公司 发电机，具体是用于风力涡轮机的发电机
US20130300228A1 (en) * 2012-05-11 2013-11-14 Peter Hessellund Soerensen Generator, in particular for a wind turbine
EP3719801A1 (fr) 2013-12-19 2020-10-07 Telefonaktiebolaget LM Ericsson (publ) Estimation de bruit de fond dans des signaux audio
EP3438979A1 (fr) 2013-12-19 2019-02-06 Telefonaktiebolaget LM Ericsson (publ) Estimation de bruit de fond dans des signaux audio
CN106134039A (zh) * 2014-04-09 2016-11-16 Zf腓特烈斯哈芬股份公司 用于电机的定子和电机
CN106134039B (zh) * 2014-04-09 2020-03-06 Zf腓特烈斯哈芬股份公司 用于电机的定子和电机
EP3582221A1 (fr) 2014-07-29 2019-12-18 Telefonaktiebolaget LM Ericsson (publ) Estimation de bruit de fond dans des signaux audio
EP3309784A1 (fr) 2014-07-29 2018-04-18 Telefonaktiebolaget LM Ericsson (publ) Estimation de bruit de fond dans des signaux audio
CN110546856A (zh) * 2016-08-03 2019-12-06 智能电机解决方案私人有限公司 电机
US10951076B2 (en) 2016-08-03 2021-03-16 Intelligent Electric Motor Solutions Pty Ltd Electric machines
CN110546856B (zh) * 2016-08-03 2022-02-01 智能电机解决方案私人有限公司 电机
CN111049290A (zh) * 2019-12-20 2020-04-21 华为技术有限公司 铁芯和电机
CN111049290B (zh) * 2019-12-20 2022-03-08 华为技术有限公司 铁芯和电机
EP4064523A4 (fr) * 2019-12-20 2023-01-11 Huawei Technologies Co., Ltd. Noyau de fer et moteur

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