EP2238671A2 - Procédé de montage pour encastrer un aimant permanent dans un élément de retenue - Google Patents

Procédé de montage pour encastrer un aimant permanent dans un élément de retenue

Info

Publication number
EP2238671A2
EP2238671A2 EP08868230A EP08868230A EP2238671A2 EP 2238671 A2 EP2238671 A2 EP 2238671A2 EP 08868230 A EP08868230 A EP 08868230A EP 08868230 A EP08868230 A EP 08868230A EP 2238671 A2 EP2238671 A2 EP 2238671A2
Authority
EP
European Patent Office
Prior art keywords
permanent magnet
coating material
receptacle
electric machine
mounting method
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Withdrawn
Application number
EP08868230A
Other languages
German (de)
English (en)
Inventor
Maik Seidel
Miro Bekavac
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2238671A2 publication Critical patent/EP2238671A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
    • 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
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
    • H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining

Definitions

  • the proposed solution seeks to simplify or shorten the assembly processes and to increase the process reliability of the fixing technique. If the at least one permanent magnet is first at least partially coated with an elastic coating material before being fitted into a holding element (for example a rotor of an electrical machine) and then mounted in the holding element in a subsequent step, then there is an opportunity to pre-fix the elastic coating material
  • Suitable coating materials are, for example, elastomers, copolymers of thermoplastic and thermoplastic, as well as polymer blends have proven to be suitable. So for example, it is provided that the coating material covers the permanent magnet on one or more sides, which also needs to be only partially, for example. Subsequently, the coated permanent magnet is inserted into the receptacle of the electromagnetically excitable component of an electrical machine. Alone by the increased friction between the recording and the coating material slipping of the permanent magnets in the recording is avoided.
  • the coating material is dimensionally adjusted so that there is an interference fit between the permanent magnets with the coating material and the receptacle.
  • the coating material gives something when inserted into the recording, at the same time create chips by pressing the permanent magnet and its coating in the recording.
  • an interference fit can be detected very well.
  • a further improved fixation of the permanent magnet in the receptacle of the electromagnetically excitable component of the electric machine is achieved by applying an additional adhesion layer to the permanent magnet and its coating material. This adhesion layer improves the adhesion between the permanent magnet or its coating material and the inclusion of the electromagnetically excitable component.
  • the coating material gives something when inserted into the recording, at the same time create chips by pressing the permanent magnet and its coating in the recording.
  • an interference fit can be detected very well.
  • a further improved fixation of the permanent magnet in the receptacle of the electromagnetically excitable component of the electric machine is achieved by applying an additional adhesion layer to the permanent magnet and its coating material. This adhesion layer improves
  • Adhesion can be improved, on the other hand, for example, by an expansion of the adhesion layer and / or the coating material even a kind of positive fit between the adhesion layer and thus the permanent magnet and the recording possible.
  • the expandable material may, for example, expand under the action of an internal or external reaction inducing agent.
  • Such an internal reaction triggering agent may be, for example, a crosslinking agent present in the coating material.
  • An external reaction triggering agent may be, for example, a radiation or heat.
  • FIG. 2 shows schematically a mounting method
  • 3a, 3b, 3c and 3d show four examples each of a coated permanent magnet
  • Figure 4 is a side view of a holding element with a
  • Figure 5 is a side view of a holding element with a
  • Permanent magnets in a recess wherein the permanent magnet is coated with both a coating material and an adhesive layer.
  • An electric machine 20 shown in FIG. 1 has, as an electrically effective part, on the one hand a rotatably mounted rotor 23 and on the other hand a rotor interactor 26 which is arranged opposite and which is usually designed as a stator 29.
  • the rotor interposer 26 is fixedly mounted in a housing 32 of the electric machine 20.
  • 26 electrical or electromagnetic forces are effective between the rotor 23 and the rotor interactor, either driving (motor) or obstructing (generator) act.
  • the rotor 23 is rotatably supported in a known manner in the geometric center of the rotoritzwirkers 26.
  • the rotor 23 consists of a rotor core 35, which is excitable in the embodiment shown by means of two permanent magnets 38.
  • the assembly process is shown very schematically.
  • the first step S1 it is provided to first coat a permanent magnet 38 at least partially with an elastic coating material.
  • step S2 it is provided to insert the coated permanent magnet 38 into a receptacle 41 of an electromagnetically excitable component (rotor 23) of the electric machine 20.
  • step S3 a fixation of the permanent magnet 38 is provided.
  • FIG. 3 a shows a prismatic permanent magnet 38 which has a trapezoidal cross-section.
  • This trapezoidal permanent magnet 38 has two ends which are inclined to each other, d. H. are oriented at an angle not equal to 180 ° to each other.
  • the permanent magnet 38 is coated with coating material 47 both at these two surfaces 44 oriented at an angle to one another and at the surfaces adjoining the surfaces 44.
  • the adjacent surfaces are designated by the reference numerals 50 and 53.
  • the other two non-visible surfaces 50 'and 53' coated. The surface 50 'and the surface 53' are opposed to the surfaces 50 and 53, respectively.
  • the exemplary embodiment according to FIG. 3b shows a parallelepiped-shaped permanent magnet 38 in which only four of six sides are coated. These are the surfaces 53 and 53 'and 44 and 44'.
  • these four surfaces are the surfaces which adjoin the surface of the receptacle.
  • a permanent magnet 38 which has a rhombic base 50 and is also prismatic.
  • the two surfaces 44 and 44 ' are coated. These two surfaces 44 and 44 'are two end surfaces which are coated with the coating material 47.
  • the cuboid shown in FIG. 3d is coated overall with coating material 47 on all sides.
  • FIG. 4 the rotor 23 of the electric machine 20 is partially shown. Of this rotor 23 is shown in a side view or sectional view of a blade 60, which by means of the rectangular receptacle 63, which extends over a certain width, d. H. represents over a certain number of fins 60 extends. This lamella 60 thus represents with this receptacle 63, the holding element 66.
  • a shown in a sectional view of permanent magnet 38 according to the embodiment of FIG. 3d is used. The permanent magnet 38 is therefore surrounded by the coating material 47.
  • This permanent magnet was inserted by means of the mounting method according to the invention for fitting a permanent magnet 38 in a holding element 66, wherein the permanent magnet 38 is supported by a coating material 47, wherein the at least one permanent magnet 38 before fitting into the holding member 66 and the receptacle 63 first at least partially coated with an elastic coating material 47 and a subsequent step in the holding element (rotor 23) is mounted.
  • the coating material 47 is, for example, an elastomer, a copolymerized plastic made of duroplastic and thermoplastic or a polymer mixture.
  • the coating material 47 covers the permanent magnet 38 on one or more sides 44, 44 ', 50, 50', 53, 53 '.
  • the permanent magnet 38 (FIG. 3d) has been coated with the coating material 47, it has been inserted into the receptacle 63 of the electromagnetically excitable component (rotor 23) of the electric machine 20, preferably the rotor.
  • the permanent magnet 38 taking into account the coating material
  • FIG. 5 shows the permanent magnet 38 in the receptacle 61 of the rotor 23 or its packetized lamellae 60.
  • the permanent magnet 38 has an additional adhesion layer 70 for its fixation in the receptacle 63 of the electromagnetically excitable component 23 of the electrical machine 20 On this permanent magnet 38 and the coating material 47 has been applied.
  • This adhesion layer 70 imparts adhesion between the permanent magnet 38 or its coating material 47 and the receptacle 61 of the electromagnetically excitable component 23.
  • the coating material 47 is capable of expansion and, for example, expands under the action of radiation or heat as an external reaction triggering agent and thus expands.
  • the permanent magnet 38 would be reinforced by the expansion of the coating 47 or held particularly well in the receptacle 61.
  • the coating material 47 could also have an internal reaction triggering agent, for example a crosslinking agent.
  • a crosslinking agent usually used to crosslink plastics, generates heat during the reaction, which, for example, makes it expansive
  • the adhesion layer 70 could also have the internal reaction triggering agent or react to an external reaction triggering agent as already mentioned and thereby expand.
  • an electric machine is provided with a permanent magnet 38, which is mounted according to one of the preceding exemplary embodiments.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Abstract

L'invention concerne un procédé de montage pour encastrer un aimant permanent (38) dans un élément de retenue (66), l'aimant permanent (38) étant maintenu par une matière de revêtement (47). Selon l'invention, l'aimant permanent (38) est d'abord revêtu au moins partiellement d'une matière de revêtement élastique (47) avant l'encastrement, puis est monté dans l'élément de retenue (66) lors d'une étape suivante.
EP08868230A 2007-12-28 2008-12-17 Procédé de montage pour encastrer un aimant permanent dans un élément de retenue Withdrawn EP2238671A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007063307A DE102007063307A1 (de) 2007-12-28 2007-12-28 Montageverfahren zum Einpassen eines Permanentmagneten in ein Halteelement
PCT/EP2008/067709 WO2009083450A2 (fr) 2007-12-28 2008-12-17 Procédé de montage pour encastrer un aimant permanent dans un élément de retenue

Publications (1)

Publication Number Publication Date
EP2238671A2 true EP2238671A2 (fr) 2010-10-13

Family

ID=40690832

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08868230A Withdrawn EP2238671A2 (fr) 2007-12-28 2008-12-17 Procédé de montage pour encastrer un aimant permanent dans un élément de retenue

Country Status (5)

Country Link
US (1) US20110057529A1 (fr)
EP (1) EP2238671A2 (fr)
JP (1) JP2011508586A (fr)
DE (1) DE102007063307A1 (fr)
WO (1) WO2009083450A2 (fr)

Families Citing this family (16)

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Publication number Priority date Publication date Assignee Title
DE102010007157A1 (de) * 2010-02-05 2011-08-11 RITZ-ATRO GmbH, 93426 Wasserkraftanlage
CN105703542B (zh) 2011-09-16 2019-11-19 柿子技术公司 具有被动转子的机器人驱动器
DE102012016927A1 (de) 2012-08-27 2014-02-27 Volkswagen Aktiengesellschaft Rotor einer elektrischen Maschine mit darin angeordneten Permanentmagneten sowie Montageverfahren zur Fixierung von Permanentmagneten in dem Rotor einer elektrischen Maschine
JP2014045634A (ja) * 2012-08-29 2014-03-13 Toyota Motor Corp ロータ及びこのロータを備える回転電機
DE102012023868A1 (de) * 2012-12-06 2014-06-12 Volkswagen Aktiengesellschaft Elektrische Maschine sowie Verfahren zu ihrer Herstellung
CN106165256B (zh) * 2014-03-24 2018-10-19 日立汽车系统株式会社 永久磁铁式旋转电机及其制造方法
JP6494922B2 (ja) * 2014-04-24 2019-04-03 東芝ライフスタイル株式会社 モータ、ランドリー機器、及びモータの製造方法
DE102015214169A1 (de) * 2015-07-27 2017-02-02 Robert Bosch Gmbh Rotor einer elektrischen Maschine
DE102016201281B3 (de) * 2016-01-28 2017-05-24 Continental Automotive Gmbh Befestigung eines Permanentmagnets innerhalb eines Rotorblechpakets
DE102016208538B4 (de) * 2016-05-18 2021-01-14 Vitesco Technologies GmbH Verfahren zur Fixierung eines Permanentmagnets in einem Rotorblechpaket für eine elektrische Maschine
JP2018164378A (ja) * 2017-03-27 2018-10-18 本田技研工業株式会社 Ｉｐｍロータ用磁石、ｉｐｍロータおよびｉｐｍロータ用磁石の製造方法
DE102017207796B4 (de) * 2017-05-09 2023-12-14 Vitesco Technologies GmbH Verfahren zum Befestigen eines Permanentmagneten in einer Magnettasche eines Rotors für eine elektrische Maschine
DE102017211882A1 (de) * 2017-07-12 2019-01-17 Robert Bosch Gmbh Klemmvorrichtung und Rotor für eine elektrische Maschine
JP6926908B2 (ja) * 2017-09-29 2021-08-25 株式会社アイシン ロータの製造方法
EP3910766A4 (fr) * 2019-01-11 2022-10-12 NHK Spring Co., Ltd. Procédé de fabrication de rotor et rotor
GB2625134A (en) * 2022-12-08 2024-06-12 Jaguar Land Rover Ltd A rotor and a method of manufacture of a rotor

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WO1992007407A1 (fr) * 1990-10-12 1992-04-30 Seiko Epson Corporation Rotor de moteur sans balais et fabrication dudit rotor
JP3043125B2 (ja) * 1991-08-26 2000-05-22 三洋電機株式会社 分離型空気調和機の室外ユニット
DE10131474A1 (de) 2001-06-29 2003-05-28 Bosch Gmbh Robert Elektrische Maschine
JP4206481B2 (ja) * 2002-10-22 2009-01-14 内浜化成株式会社 モーター用ローター
JP2005012859A (ja) * 2003-06-16 2005-01-13 Nissan Motor Co Ltd 電動機回転子及びその製造方法
JP4661261B2 (ja) * 2005-02-22 2011-03-30 トヨタ自動車株式会社 回転電機の回転子構造
JP4815967B2 (ja) * 2005-09-21 2011-11-16 トヨタ自動車株式会社 永久磁石式回転電機
DE102005052870A1 (de) * 2005-10-28 2007-05-03 Temic Automotive Electric Motors Gmbh Elektrische Maschine

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Also Published As

Publication number Publication date
DE102007063307A1 (de) 2009-07-02
WO2009083450A3 (fr) 2010-02-04
US20110057529A1 (en) 2011-03-10
WO2009083450A2 (fr) 2009-07-09
JP2011508586A (ja) 2011-03-10

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