FR3127344B1 - method of overmolding an element with magnetic poles for a rotor of an electric machine and method of manufacturing such a rotor - Google Patents

method of overmolding an element with magnetic poles for a rotor of an electric machine and method of manufacturing such a rotor Download PDF

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Publication number
FR3127344B1
FR3127344B1 FR2109914A FR2109914A FR3127344B1 FR 3127344 B1 FR3127344 B1 FR 3127344B1 FR 2109914 A FR2109914 A FR 2109914A FR 2109914 A FR2109914 A FR 2109914A FR 3127344 B1 FR3127344 B1 FR 3127344B1
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FR
France
Prior art keywords
overmolding
magnetic poles
rotor
mold
manufacturing
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.)
Active
Application number
FR2109914A
Other languages
French (fr)
Other versions
FR3127344A1 (en
Inventor
Romain Fleurisson
Nicolas Marchal
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.)
Renault SAS
Whylot SAS
Original Assignee
Renault SAS
Whylot SAS
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 Renault SAS, Whylot SAS filed Critical Renault SAS
Priority to FR2109914A priority Critical patent/FR3127344B1/en
Publication of FR3127344A1 publication Critical patent/FR3127344A1/en
Application granted granted Critical
Publication of FR3127344B1 publication Critical patent/FR3127344B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2793—Rotors axially facing stators
    • H02K1/2795—Rotors axially facing stators the rotor consisting of two or more circumferentially positioned magnets
    • 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
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/12—Impregnating, heating or drying of windings, stators, rotors or machines

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

L’invention concerne un procédé de de surmoulage d’un élément à pôles magnétiques (1) pour un rotor d’une machine électrique, ledit procédé comprenant les étapes suivantes : - fourniture d’un moule (30) de surmoulage comprenant une partie inférieure (32) et une partie supérieure, ladite partie inférieure comprenant une paroi de fond (32a) bordée d’une paroi latérale (32b), ladite partie supérieure comprenant une paroi avant bordée d’une autre paroi latérale, - positionnement d’au moins une cale (40, 41) adaptée à caler ledit élément à pôles magnétiques à distance de la paroi de fond et de la paroi latérale de la partie inférieure du moule, - mise en place de l’élément à pôles magnétiques sur ladite cale, - positionnement de la partie supérieure du moule de surmoulage sur ladite partie inférieure de manière à contenir l’élément à pôles magnétiques dans le moule de surmoulage, et - injection d’une résine de surmoulage dans le moule de surmoulage, de manière à former une couche de résine autour de l’élément à pôles magnétiques et de ladite cale, chaque cale étant formée d’un matériau inerte magnétiquement. Figure pour l’abrégé : Fig. 2The invention relates to a method for overmolding an element with magnetic poles (1) for a rotor of an electrical machine, said method comprising the following steps: - providing an overmolding mold (30) comprising a lower part (32) and an upper part, said lower part comprising a bottom wall (32a) bordered by a side wall (32b), said upper part comprising a front wall bordered by another side wall, - positioning of at least a wedge (40, 41) adapted to wedge said element with magnetic poles at a distance from the bottom wall and the side wall of the lower part of the mold, - positioning of the element with magnetic poles on said wedge, - positioning the upper part of the overmolding mold on said lower part so as to contain the element with magnetic poles in the overmolding mold, and - injection of an overmolding resin into the overmolding mold, so as to form a layer of resin around the element with magnetic poles and said spacer, each spacer being formed of a magnetically inert material. Figure for abstract: Fig. 2

FR2109914A 2021-09-21 2021-09-21 method of overmolding an element with magnetic poles for a rotor of an electric machine and method of manufacturing such a rotor Active FR3127344B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2109914A FR3127344B1 (en) 2021-09-21 2021-09-21 method of overmolding an element with magnetic poles for a rotor of an electric machine and method of manufacturing such a rotor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2109914 2021-09-21
FR2109914A FR3127344B1 (en) 2021-09-21 2021-09-21 method of overmolding an element with magnetic poles for a rotor of an electric machine and method of manufacturing such a rotor

Publications (2)

Publication Number Publication Date
FR3127344A1 FR3127344A1 (en) 2023-03-24
FR3127344B1 true FR3127344B1 (en) 2024-02-16

Family

ID=78483373

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2109914A Active FR3127344B1 (en) 2021-09-21 2021-09-21 method of overmolding an element with magnetic poles for a rotor of an electric machine and method of manufacturing such a rotor

Country Status (1)

Country Link
FR (1) FR3127344B1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5536151B2 (en) * 2011-08-25 2014-07-02 ファナック株式会社 Manufacturing method of magnet plate for linear motor
KR101310489B1 (en) * 2012-02-10 2013-09-24 삼성전기주식회사 Rotor assembly for a motor and manufacturing method thereof
CN108370176B (en) * 2015-12-16 2021-02-09 三菱电机株式会社 Stator, method for manufacturing stator, motor, and air conditioner
FR3064423B1 (en) 2017-03-22 2019-11-15 Whylot Sas ROTOR FOR MOTOR OR ELECTROMAGNETIC GENERATOR WITH ALVEOLAR STRUCTURE COMPRISING ALVEOLES FOR THE HOUSING OF RESPECTIVE MAGNETS
EP3454348A1 (en) * 2017-09-11 2019-03-13 JLMAG Rare-earth Co. Europe B.V. Method for manufacturing of magnet assembly for an electrical machine and a magnet assembly

Also Published As

Publication number Publication date
FR3127344A1 (en) 2023-03-24

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