EP3549236A1 - Stator for an electrical machine, a production method, and an electrical machine for a motor vehicle - Google Patents
Stator for an electrical machine, a production method, and an electrical machine for a motor vehicleInfo
- Publication number
- EP3549236A1 EP3549236A1 EP17798221.2A EP17798221A EP3549236A1 EP 3549236 A1 EP3549236 A1 EP 3549236A1 EP 17798221 A EP17798221 A EP 17798221A EP 3549236 A1 EP3549236 A1 EP 3549236A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- stator
- projections
- electrical machine
- motor vehicle
- impregnation
- 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.)
- Withdrawn
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
- H02K1/18—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
- 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
Definitions
- the invention relates to a stator for an electric machine according to the preamble of
- the invention further relates to a manufacturing method for a stator and an electric machine for a motor vehicle.
- An electric machine is generally understood to mean an electromechanical converter which converts electrical energy into mechanical energy and / or mechanical energy into electrical energy.
- An electric machine is in particular an electric motor (electric motor) and / or generator with a fixed stator or stator and a rotatably mounted in the stator rotor or rotor (inner rotor).
- the stator has a stator or
- the stator body may be formed from individual stator laminations, which are combined to form a so-called laminated stator core.
- the prior art is made to DE 10 2008 007 578 A1.
- stator laminations can be perforated, wherein the perforations in the laminated stator core are axial
- Stator sheets are provided. This is shown, for example, in US 6,088,905 A (see
- the object of the invention is to provide a trained with axial bores or axial bores stator, which is space and weight optimized.
- stator according to the invention has a stator body formed from individual stator laminations, which is formed with axial bores, in particular through-bores, wherein the stator body is provided with (radially projecting) on its outer circumferential or circumferential surface.
- Projections is formed, in which the axial bores are arranged.
- a plurality of projections distributed over the circumference are provided, wherein in each projection at least one axial bore is formed.
- the projections preferably extend over the entire axial length of the stator body or of the stator lamination stack formed from the stator laminations. Since there are voids between the projections, considerable space and weight or mass can be saved with the invention.
- a first embodiment provides that the individual stator laminations, in particular all the stator laminations, are formed on the outer circumference with perforated, ear-like tabs which are aligned one above the other in the laminated stator core and form the projections.
- the projections are by means of interlocking form-locking elements on
- the interlocking elements may be designed for an undercut connection, preferably with a Verastungsgeometrie, which allows snapping by pressing.
- the positive locking elements are
- the projections can, in particular in one piece, be formed from metal, for example aluminum, or plastic, also fiber-reinforced plastic. Preference is given to injection-molded parts or cut extruded profile parts.
- the second embodiment is particularly advantageous for a dip-impregnated stator.
- the entire stator is immersed in an impregnation medium, such as resin, and soaked. Subsequently, the resin is cured by supplying energy.
- the immersion impregnation allows a fixation of the stator laminations and a coating of the stator body and stator winding in a single process step.
- Impregnation can also serve the sealing.
- the prior art is on the
- the production of an impregnated and in particular dip-impregnated stator can then comprise, for example, the following steps:
- Impregnating and in particular dip impregnating the stator preferably by
- Projections or the stator are heated or residual heat can be used by hot curing.
- the projections attached subsequently to the impregnation process are thus resin-free on their outer surfaces, which may in particular act as contact surfaces or support surfaces, and on end surfaces, which may furthermore function in particular as screw head support surfaces.
- ZSB stator assembly stator
- the stator can thus be installed without additional processing and, for example, be installed in a housing.
- Fig. 1 shows an axial plan view of a stator with projections.
- Fig. 2 shows an axial plan view of a section of another stator body with separately formed projections.
- Fig. 3 shows a perspective view of a projection formed as a separate part for attachment to the stator shown in Fig. 2.
- the stator body or carrier 100 shown in FIG. 1 is approximately circular cylindrical and is formed from a plurality of identical stator laminations 110, which are stacked in the axial direction L (perpendicular to the plane of the page) and form a laminated stator core.
- the stator winding grooves 120 for receiving a stator winding not shown are formed on the inner circumferential surface (internally-grooved stator).
- stator body 100 On its outer peripheral surface, the stator body 100 is formed with four protrusions 130 through which axial through holes 140 extend.
- the through holes 140 are, for example, for the attachment of end plates or end caps, bearing caps or
- the through holes 140 may also be provided for mounting the stator in a housing.
- the projections 130 may also be used as attachment or
- the stator body 100 further includes a dip impregnated resin impregnation 150, which is only partially illustrated.
- each stator lamination 10 has four tabs or ears 15 which are radially outwardly projecting and perforated and which form the projections 130 in the laminated stator core.
- all projections 130 are formed as separate parts or body 135 which are secured by means of dovetail 160 form-fitting manner on the outer peripheral surface of the stator 100 also formed of stator laminations.
- the axial length of the separate projections 130/135 corresponds to the axial length of the stator body or the stator lamination 100.
- Dovetail connection 160 extends over the entire axial connection length.
- FIG. 3 shows such a projection 130 formed as a separate part, which is already formed with a through-bore 140, with support surfaces 138 adapted to the outer circumferential surface of the stator body 100 and with a dovetail-shaped groove 137. (The other separate projections 130 are identical.)
- the stator 100 is formed with corresponding Nutzapfen 107, resulting from a corresponding
- the Nutzapfen 107 and the groove 137 form corresponding form-fitting elements.
- the projections 130 formed as separate parts 135 are preferably fastened to the stator body 100 only after a possible impregnation and are thus resin-free (ie the contact surfaces functioning as housing contact surfaces and / or as screw head contact surfaces are free of impregnation). Manufacturing tolerances can be better adhered to, in addition, the protrusions 130 are also free of resin drops and resin runners.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016224066.8A DE102016224066A1 (en) | 2016-12-02 | 2016-12-02 | Stator for an electric machine, manufacturing method and electric machine for a motor vehicle |
PCT/EP2017/079445 WO2018099728A1 (en) | 2016-12-02 | 2017-11-16 | Stator for an electrical machine, a production method, and an electrical machine for a motor vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3549236A1 true EP3549236A1 (en) | 2019-10-09 |
Family
ID=60331623
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17798221.2A Withdrawn EP3549236A1 (en) | 2016-12-02 | 2017-11-16 | Stator for an electrical machine, a production method, and an electrical machine for a motor vehicle |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3549236A1 (en) |
CN (1) | CN110024263A (en) |
DE (1) | DE102016224066A1 (en) |
WO (1) | WO2018099728A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113824282B (en) * | 2020-06-19 | 2023-04-14 | 新疆金风科技股份有限公司 | Generator stator painting method and plugging tool |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1771475A (en) * | 1928-06-18 | 1930-07-29 | Robbins & Myers | Stator in electric motors and generators |
GB329739A (en) * | 1929-03-12 | 1930-05-29 | Ernest Barlow | Improvements in laminated structures for dynamo-electric machines |
US1980026A (en) * | 1934-02-24 | 1934-11-06 | Gen Electric | Fabricated dynamo-electric machine |
GB737825A (en) * | 1953-06-19 | 1955-10-05 | Gen Electric Co Ltd | Improvements in or relating to resilient support arrangements for electric motors |
GB1395742A (en) * | 1971-05-18 | 1975-05-29 | Skf Ind Trading & Dev | Stators of electric motors and other rotary electric machines and a method of the manufacture of such stators |
US3807040A (en) * | 1972-04-21 | 1974-04-30 | Gen Electric | Method of assembling a dynamoelectric machine stator |
DE3818195A1 (en) * | 1988-05-28 | 1989-12-07 | Asea Brown Boveri | SPINDLES WITH ELECTRICAL MOTOR FOR A SPINNING MACHINE |
GB2283133B (en) | 1993-10-20 | 1998-04-15 | Gen Electric | Dynamoelectric machine and method for manufacturing same |
JP2001069732A (en) * | 1999-08-26 | 2001-03-16 | Honda Motor Co Ltd | Fixing of stator coil and rotary electric machine |
CN2555583Y (en) * | 2002-08-08 | 2003-06-11 | 张芳溥 | High damp-proofing wire wound stator varnished structure of motor |
JP4858944B2 (en) * | 2005-12-27 | 2012-01-18 | 株式会社三井ハイテック | Manufacturing method of laminated iron core |
DE102008007578A1 (en) | 2008-02-05 | 2009-08-27 | Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg | Method for attachment of end bearing to stator laminated core for electric motor drive, involves connecting end bearing with core by electromagnetic pulse joints so that end bearing material is embedded in depressions |
JP5505275B2 (en) * | 2010-11-22 | 2014-05-28 | アイシン・エィ・ダブリュ株式会社 | Stator cooling device |
JP5485926B2 (en) * | 2011-02-25 | 2014-05-07 | 東芝産業機器製造株式会社 | Manufacturing method of stator core |
JP2013135539A (en) * | 2011-12-27 | 2013-07-08 | Fuji Heavy Ind Ltd | Electric motor and laminate stator |
DE102012017293B4 (en) * | 2012-08-27 | 2020-08-06 | Magna Pt B.V. & Co. Kg | Electrical machine for a motor vehicle drive train |
CN104662775B (en) * | 2012-09-18 | 2018-07-10 | 株式会社明电舍 | The fixture construction of stator |
CN103051082B (en) * | 2012-12-30 | 2015-06-03 | 南车株洲电机有限公司 | Stator core fixed structure and box-type motor |
JP6137314B2 (en) * | 2013-07-12 | 2017-05-31 | アイシン・エィ・ダブリュ株式会社 | Varnish impregnation apparatus and varnish impregnation method |
JP6510195B2 (en) * | 2013-11-08 | 2019-05-08 | 三星電子株式会社Samsung Electronics Co.,Ltd. | Motor and method of manufacturing the same |
CN103683698B (en) * | 2013-12-05 | 2015-09-09 | 张学义 | The production method of composite type magnetic pole radial permanent magnet constant voltage generator |
EP2887507A1 (en) | 2013-12-18 | 2015-06-24 | Siemens Aktiengesellschaft | Impregnation of a stator of an electrical machine |
CN204967442U (en) * | 2015-10-09 | 2016-01-13 | 南车株洲电机有限公司 | Motor |
-
2016
- 2016-12-02 DE DE102016224066.8A patent/DE102016224066A1/en not_active Withdrawn
-
2017
- 2017-11-16 WO PCT/EP2017/079445 patent/WO2018099728A1/en unknown
- 2017-11-16 EP EP17798221.2A patent/EP3549236A1/en not_active Withdrawn
- 2017-11-16 CN CN201780074584.9A patent/CN110024263A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
CN110024263A (en) | 2019-07-16 |
WO2018099728A1 (en) | 2018-06-07 |
DE102016224066A1 (en) | 2018-06-07 |
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