DE10261617A1 - Electrical machine - Google Patents
Electrical machine Download PDFInfo
- Publication number
- DE10261617A1 DE10261617A1 DE2002161617 DE10261617A DE10261617A1 DE 10261617 A1 DE10261617 A1 DE 10261617A1 DE 2002161617 DE2002161617 DE 2002161617 DE 10261617 A DE10261617 A DE 10261617A DE 10261617 A1 DE10261617 A1 DE 10261617A1
- Authority
- DE
- Germany
- Prior art keywords
- housing
- electrical machine
- stator
- machine according
- length
- 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- Withdrawn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
- 238000000034 method Methods 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910001234 light alloy Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005555 metalworking Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/15—Mounting arrangements for bearing-shields or end plates
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
Die Erfindung bezieht sich auf eine elektrische Maschine 1 mit einem Gehäuse 2 und einem in dem Gehäuse 2 angeordneten Statorpaket 3. Das Gehäuse 2 und das Statorpaket 3 sind durch federnde Spannmittel 7 miteinander verspannt.The invention relates to an electrical machine 1 with a housing 2 and a stator package 3 arranged in the housing 2. The housing 2 and the stator package 3 are clamped together by resilient clamping means 7.
Description
Technisches GebietTechnical field
Die Erfindung bezieht sich auf eine elektrische Maschine, insbesondere einen Elektromotor, mit einem Gehäuse und einem in dem Gehäuse befestigten Statorpaket. Derartige Motoren, die häufig als Asynchronmotoren konstruiert sind, werden bevorzugt für Anwendungen im Kraftfahrzeugbereich eingesetzt. Sie müssen dort, bei rauen Umgebungsbedingungen höchste Anforderungen an Zuverlässigkeit und Lebensdauer erfüllen. Dennoch müssen sie einfach aufgebaut und auch in Großserie äußerst preisgünstig zu fertigen sein, um auch hinsichtlich der Preisgestaltung wettbewerbsfähig zu sein.The invention relates to a electrical machine, in particular an electric motor, with a casing and one in the case attached stator package. Such engines, often called Asynchronous motors are preferred for applications used in the automotive field. You have to go there in harsh environmental conditions highest Reliability requirements and lifespan. Still, they have to simply constructed and extremely inexpensive even in large series be manufactured in order to be competitive in terms of pricing.
Stand der TechnikState of technology
Die Statoren von Elektromotoren, insbesondere von bestimmten Bauarten der Asynchronmotoren mit Leichtmetallgehäuse, sind häufig durch einen Schrumpfprozess gehalten und fixiert. Bei Motorgehäusen, die für die Ab- und Weiterleitung der Verlustwärme des Motors selbst und gegebenenfalls integrierter Steuergeräte keine Wärmekapazität als Funktion haben müssen, werden außer dem Schrumpfprozess auch Verbindungstechniken wie Schrauben, Klemmen, Kleben und Schweißen eingesetzt. Asynchronmotoren leben von dem radialen kleinen Luftspalt zwischen dem Stator- und dem Rotorpaket. Daher ist bei derartigen Ausführungen in den meisten Fällen eine Nacharbeit durch Verzug beziehungsweise Deformation infolge der ungleichmäßigen Materialverteilung im Umfang im Fertigungsprozess erforderlich.The stators of electric motors, especially of certain types of asynchronous motors with a light metal housing frequently held and fixed by a shrinking process. For engine housings that for the Dissipation and transfer of the heat loss of the engine itself and, if necessary integrated control units no heat capacity as a function need to have, be except the shrinking process also connection techniques such as screws, clamps, Gluing and welding used. Asynchronous motors live from the radial small air gap between the stator and the rotor package. Therefore, with such versions in most cases rework due to delay or deformation as a result the uneven material distribution required in the scope of the manufacturing process.
Darstellung der Erfindungpresentation the invention
Die Erfindung ermöglicht eine außerordentlich einfache Positionierungs- und Fixierungsart des Statorpakets in einem Motorgehäuse. Dabei ist es ohne weiteres möglich, die unterschiedliche Wärmeausdehnung zwischen dem aus Leichtmetall bestehenden Motorgehäuse und dem aus Stahlblech bestehenden Statorpaket auszugleichen. Außerdem ist es ohne weiteres möglich, die Lagerdeckel für den Rotor sehr genau und unabhängig von der Wärmeausdehnung beziehungsweise Kälteschrumpfung des Leichtmetallgehäuses zu positionieren und dennoch einen möglichst kleinen Luft- spalt zwischen Rotor und Stator zu realisieren. Aufwändige Nacharbeiten und damit auch die unerwünschte Spänebeseitigung beziehungsweise unberechenbare Blockiergefahr, die bei den herkömmlichen Schrumpfverfahren häufig erforderlich waren, entfallen. Die Erfindung macht sich die Erkenntnis zu Nutze, dass das Motorgehäuse und die Außenkontur des Statorpakets mit einer relativ großen Toleranz gefertigt werden können und dass dennoch eine präzise Montage durch federnde Elemente möglich ist, die zwischen dem Statorpaket und dem Motorgehäuse angeordnet sind. Diese Verbindungstechnik hat sich bei allen im Betrieb der elektrischen Maschine vorkommenden Temperaturbereichen als außerordentlich zuverlässig erwiesen. Bei der höchsten zulässigen Betriebstemperatur, die bei rund 130° Celsius, partiell auch bei bis zu 160° Celsius, liegt, wird ein gegebenenfalls zwischen Stator und Motorgehäuse durch die thermische Ausdehnung des Motorgehäuses entstehendes Spiel durch das Nachfedern der federnden Elemente ausgeglichen. Andererseits ist sichergestellt, dass selbst bei der tiefsten Betriebstemperatur in der Größenordnung von etwa –40° Celsius das infolge der Kälte auftretende stärkere Schrumpfen des Leichtmetalls gegenüber Stahl es nicht zu deren Überlastung oder Zerstörung führt. Dies wird dadurch erreicht, dass lediglich die federnden Elemente durch die bei diesem Schrumpfen auftretenden Kräfte weiter zusammen gedrückt werden können. Die Schrumpfung lebt von der Elastizität der Werkstoffe, das heißt, dass die dabei möglichen Federwege im Mikrometerbereich liegen. Dagegen können bei den erfindungsgemäß vorgesehenen federnden Spannstiften Federwege bis zu etwa 800 Mikrometer aufgebracht werden.The invention enables an extraordinary simple way of positioning and fixing the stator package in a motor housing. It is easily possible the different thermal expansion between the motor housing made of light metal and to compensate for the stator package consisting of sheet steel. Besides, it is easily possible the bearing caps for the rotor very precisely and independently of thermal expansion or cold shrinkage of the Light alloy housing to be positioned and the air gap as small as possible between rotor and stator. Time-consuming rework and thus even the unwanted chip disposal or the unpredictable risk of blocking that with conventional Shrinking processes often were required. The invention makes itself known take advantage of the motor housing and the outer contour of the stator package are manufactured with a relatively large tolerance can and that nevertheless a precise Assembly is possible by resilient elements between the Stator package and the motor housing are arranged. This connection technology has been used by everyone temperature ranges occurring in the electrical machine as extraordinary reliable proved. At the highest permissible Operating temperature, which at around 130 ° Celsius, partially at up to 160 ° Celsius, is located between the stator and the motor housing due to the thermal expansion of the motor housing compensated the resilience of the resilient elements. on the other hand ensures that even at the lowest operating temperature in the order of magnitude of around –40 ° Celsius because of the cold occurring stronger Shrinking the light metal compared to steel does not overload it or destruction leads. This is achieved in that only the resilient elements are further pressed together by the forces occurring during this shrinkage can. The shrinkage lives from the elasticity of the materials, which means that the possible ones Travel is in the micrometer range. In contrast, in the case of those provided according to the invention Spring dowels spring travel up to about 800 microns applied become.
Zeichnungdrawing
Anhand der Zeichnung wird die Erfindung nachstehend näher erläutert.The invention is described below with reference to the drawing explained in more detail.
Es zeigt:It shows:
Beschreibung der AusführungsbeispieleDescription of the embodiments
Die erfinderische Lösung vermeidet
diese Probleme auf elegante An und Weise. Sie geht von der Erkenntnis
aus, dass gewisse Baugruppen der elektrischen Maschine
Die erfinderische Lösung wird
nachfolgend unter Bezug auf die
Auf besonders vorteilhafte Weise
ermöglicht die
erfindungsgemäße Lösung auch
eine besonders einfache und dennoch präzise Montage der das Gehäuse
Die erfindungsgemäße Lösung ist bei allen elektrischen Maschinen anwendbar, bei denen ein Statorpaket in einem Gehäuse montiert wird. Sie ermöglicht ein besonders kostengünstiges und preiswertes Herstellungsverfahren, da Teile mit vergleichsweise großer Toleranz verwendet werden können. Dennoch lassen sich besonders geringe Passungen zwischen feststehenden und rotierenden Teilen einer elektrischen Maschine einhalten. Besonders vorteilhaft ist, dass sich diese guten konstruktiven Eigenschaften auch über einen sehr weiten Temperaturbereich einhalten lassen. Denn infolge der Verspannung der montierten Teile mittels Federelementen, wie insbesondere Spannhülsen, werden temperaturbedingte Dimensionsänderungen weitgehend kompensiert.The solution according to the invention is electrical for all Machines applicable in which a stator package is mounted in a housing becomes. It enables a particularly inexpensive and inexpensive manufacturing process, since parts with comparatively greater Tolerance can be used. Nevertheless, there are particularly small fits between the fixed ones and rotating parts of an electrical machine. Especially It is advantageous that these good constructive properties also about keep a very wide temperature range. Because as a result the bracing of the assembled parts by means of spring elements, such as in particular adapter sleeves, temperature-related dimensional changes are largely compensated.
- 11
- Elektrische Maschineelectrical machine
- 22
- Gehäusecasing
- 2a2a
- Deckelcover
- 2b2 B
- Deckelcover
- 33
- Statorstator
- 44
- Rotorrotor
- 55
- Kugellagerball-bearing
- 66
- Kugellagerball-bearing
- 77
- Spannhülseclamping sleeve
- 88th
- Ausnehmungrecess
- 99
- Nutgroove
- 1010
- Nutgroove
Claims (8)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2002161617 DE10261617A1 (en) | 2002-12-27 | 2002-12-27 | Electrical machine |
| PCT/DE2003/001959 WO2004062067A1 (en) | 2002-12-27 | 2003-06-12 | Electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2002161617 DE10261617A1 (en) | 2002-12-27 | 2002-12-27 | Electrical machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE10261617A1 true DE10261617A1 (en) | 2004-07-22 |
Family
ID=32519491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2002161617 Withdrawn DE10261617A1 (en) | 2002-12-27 | 2002-12-27 | Electrical machine |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE10261617A1 (en) |
| WO (1) | WO2004062067A1 (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007058072A1 (en) | 2007-12-03 | 2009-06-04 | Robert Bosch Gmbh | Electric machine |
| US7847444B2 (en) * | 2008-02-26 | 2010-12-07 | Gm Global Technology Operations, Inc. | Electric motor assembly with stator mounted in vehicle powertrain housing and method |
| US7982356B2 (en) | 2006-06-02 | 2011-07-19 | Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg | Electric motor and method for manufacturing an electric motor for a motor vehicle actuator drive |
| WO2011141222A2 (en) | 2010-05-14 | 2011-11-17 | Robert Bosch Gmbh | Method for producing an electric motor |
| DE102012022481A1 (en) * | 2012-11-19 | 2014-05-22 | Sew-Eurodrive Gmbh & Co Kg | Electric motor with a stator |
| DE102014100842A1 (en) | 2014-01-24 | 2015-07-30 | Ebm-Papst St. Georgen Gmbh & Co. Kg | Electric internal rotor machine and assembly process |
| EP3073612A1 (en) * | 2015-03-26 | 2016-09-28 | Skf Magnetic Mechatronics | Stator assembly and magnetic bearing or electric motor comprising such a stator assembly |
| CN106787493A (en) * | 2016-12-26 | 2017-05-31 | 哈尔滨工业大学 | A kind of Space Facilities inorganic shell assembly method of separately-loaded magneto |
| DE102016222614A1 (en) | 2016-11-17 | 2018-05-17 | Robert Bosch Gmbh | Stator of an electrical machine, an electric machine, and method for producing such |
| CN108565999A (en) * | 2018-01-03 | 2018-09-21 | 珠海凌达压缩机有限公司 | Motor assembly and compressor with same |
| DE102018205785A1 (en) * | 2018-04-17 | 2019-10-17 | Siemens Aktiengesellschaft | Electric machine with at least one spring element for holding a stator to a housing and associated production method |
| DE102012202191B4 (en) * | 2011-03-08 | 2020-12-10 | Kabushiki Kaisha Toyota Jidoshokki | Motor-driven compressor and assembly method for a motor-driven compressor |
| DE102011103853B4 (en) * | 2010-06-18 | 2021-01-14 | Sew-Eurodrive Gmbh & Co Kg | Electric motor and method of making an electric motor |
| DE102023200955A1 (en) | 2023-02-07 | 2024-08-08 | Robert Bosch Gesellschaft mit beschränkter Haftung | Insulating mask and a stator of an electrical machine, an electrical machine, and method for producing such a |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006036836A1 (en) * | 2006-08-07 | 2008-02-14 | Robert Bosch Gmbh | electric motor |
| US9583983B2 (en) * | 2013-05-30 | 2017-02-28 | GM Global Technology Operations LLC | Electric motor assembly and method |
| CN108702037A (en) * | 2016-02-16 | 2018-10-23 | 株式会社安川电机 | Rotating electric machine and method for manufacturing rotating electric machine |
| EP3493369A1 (en) | 2017-11-29 | 2019-06-05 | Siemens Aktiengesellschaft | Holder for stator in the housing by means of spring elements |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE628541C (en) * | 1936-04-06 | Emil Skrabal | Attachment of the end shields to electric motors with housing jacket | |
| DE1973001U (en) * | 1967-08-19 | 1967-11-23 | Elek Sche Geraete M B H Ges | FASTENING THE STATOR SHEET PACKS IN THE MOTOR HOUSING. |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0819205A (en) * | 1994-06-29 | 1996-01-19 | Fuji Electric Co Ltd | Rotating electric machine stator |
| GB9809418D0 (en) * | 1998-05-02 | 1998-07-01 | Normalair Garrett Ltd | Electric motor |
| DE10018156A1 (en) * | 2000-04-12 | 2001-10-25 | Bosch Gmbh Robert | Electric motor |
-
2002
- 2002-12-27 DE DE2002161617 patent/DE10261617A1/en not_active Withdrawn
-
2003
- 2003-06-12 WO PCT/DE2003/001959 patent/WO2004062067A1/en not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE628541C (en) * | 1936-04-06 | Emil Skrabal | Attachment of the end shields to electric motors with housing jacket | |
| DE1973001U (en) * | 1967-08-19 | 1967-11-23 | Elek Sche Geraete M B H Ges | FASTENING THE STATOR SHEET PACKS IN THE MOTOR HOUSING. |
Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7982356B2 (en) | 2006-06-02 | 2011-07-19 | Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg | Electric motor and method for manufacturing an electric motor for a motor vehicle actuator drive |
| DE102007058072A1 (en) | 2007-12-03 | 2009-06-04 | Robert Bosch Gmbh | Electric machine |
| US8203248B2 (en) | 2007-12-03 | 2012-06-19 | Robert Bosch Gmbh | Electric motor |
| CN101521428B (en) * | 2008-02-26 | 2012-07-11 | 通用汽车环球科技运作公司 | Electric motor assembly with stator mounted in vehicle powertrain housing and installation method thereof |
| US7847444B2 (en) * | 2008-02-26 | 2010-12-07 | Gm Global Technology Operations, Inc. | Electric motor assembly with stator mounted in vehicle powertrain housing and method |
| DE102009010177B4 (en) | 2008-02-26 | 2018-06-07 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | An electric motor assembly having a stator and method mounted in a vehicle driveline housing |
| WO2011141222A2 (en) | 2010-05-14 | 2011-11-17 | Robert Bosch Gmbh | Method for producing an electric motor |
| DE102010028989A1 (en) | 2010-05-14 | 2011-11-17 | Robert Bosch Gmbh | Method for producing an electric motor |
| DE102011103853B4 (en) * | 2010-06-18 | 2021-01-14 | Sew-Eurodrive Gmbh & Co Kg | Electric motor and method of making an electric motor |
| DE102012202191B4 (en) * | 2011-03-08 | 2020-12-10 | Kabushiki Kaisha Toyota Jidoshokki | Motor-driven compressor and assembly method for a motor-driven compressor |
| DE102012022481A1 (en) * | 2012-11-19 | 2014-05-22 | Sew-Eurodrive Gmbh & Co Kg | Electric motor with a stator |
| DE102014100842A1 (en) | 2014-01-24 | 2015-07-30 | Ebm-Papst St. Georgen Gmbh & Co. Kg | Electric internal rotor machine and assembly process |
| DE102014100842B4 (en) | 2014-01-24 | 2018-03-15 | Ebm-Papst St. Georgen Gmbh & Co. Kg | Electric internal rotor machine and assembly process |
| US10411531B2 (en) | 2015-03-26 | 2019-09-10 | Skf Magnetic Mechatronics | Stator assembly and magnetic bearing or electric motor having such a stator assembly |
| US20160285324A1 (en) * | 2015-03-26 | 2016-09-29 | Skf Magnetic Mechatronics | Stator assembly and magnetic bearing or electric motor having such a stator assembly |
| CN106026488A (en) * | 2015-03-26 | 2016-10-12 | 斯凯孚磁性机械技术公司 | Stator assembly and magnetic bearing or electric motor comprising such a stator assembly |
| EP3073612A1 (en) * | 2015-03-26 | 2016-09-28 | Skf Magnetic Mechatronics | Stator assembly and magnetic bearing or electric motor comprising such a stator assembly |
| WO2018091318A1 (en) | 2016-11-17 | 2018-05-24 | Robert Bosch Gmbh | Stator of an electrical machine, electrical machine, and method for producing same |
| DE102016222614A1 (en) | 2016-11-17 | 2018-05-17 | Robert Bosch Gmbh | Stator of an electrical machine, an electric machine, and method for producing such |
| DE102016222614B4 (en) | 2016-11-17 | 2024-06-06 | Robert Bosch Gmbh | Stator of an electrical machine, an electrical machine, and method for producing such a |
| US11070104B2 (en) | 2016-11-17 | 2021-07-20 | Robert Bosch Gmbh | Stator of an electrical machine, an electrical machine, and method for producing same |
| CN106787493A (en) * | 2016-12-26 | 2017-05-31 | 哈尔滨工业大学 | A kind of Space Facilities inorganic shell assembly method of separately-loaded magneto |
| CN108565999A (en) * | 2018-01-03 | 2018-09-21 | 珠海凌达压缩机有限公司 | Motor assembly and compressor with same |
| CN108565999B (en) * | 2018-01-03 | 2019-11-12 | 珠海格力电器股份有限公司 | Motor assembly and compressor with same |
| WO2019201541A1 (en) * | 2018-04-17 | 2019-10-24 | Siemens Aktiengesellschaft | Electrical machine with a spring element for holding a stator in a housing |
| DE102018205785A1 (en) * | 2018-04-17 | 2019-10-17 | Siemens Aktiengesellschaft | Electric machine with at least one spring element for holding a stator to a housing and associated production method |
| DE102023200955A1 (en) | 2023-02-07 | 2024-08-08 | Robert Bosch Gesellschaft mit beschränkter Haftung | Insulating mask and a stator of an electrical machine, an electrical machine, and method for producing such a |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2004062067A1 (en) | 2004-07-22 |
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| Date | Code | Title | Description |
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| OP8 | Request for examination as to paragraph 44 patent law | ||
| R016 | Response to examination communication | ||
| R084 | Declaration of willingness to licence | ||
| R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |