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FR3119703B1 - Method of manufacturing a magnet structure with several unit magnets - Google Patents

Method of manufacturing a magnet structure with several unit magnets Download PDF

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Publication number
FR3119703B1
FR3119703B1 FR2200535A FR2200535A FR3119703B1 FR 3119703 B1 FR3119703 B1 FR 3119703B1 FR 2200535 A FR2200535 A FR 2200535A FR 2200535 A FR2200535 A FR 2200535A FR 3119703 B1 FR3119703 B1 FR 3119703B1
Authority
FR
France
Prior art keywords
magnet structure
cutouts
manufacturing
unit magnets
blank
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
FR2200535A
Other languages
French (fr)
Other versions
FR3119703A1 (en
Inventor
Sébastien Gouezel
Jere Kolehmainen
Thierry Laurent
Florian Loubeau
Vasile Mihaila
Romain Ravaud
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.)
AMPERE SAS, FR
Whylot SAS
Original Assignee
Whylot SAS
Renault 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
Priority claimed from FR2101152A external-priority patent/FR3119702B1/en
Priority claimed from FR2106912A external-priority patent/FR3119718B1/en
Application filed by Whylot SAS, Renault SAS filed Critical Whylot SAS
Publication of FR3119703A1 publication Critical patent/FR3119703A1/en
Application granted granted Critical
Publication of FR3119703B1 publication Critical patent/FR3119703B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H02K1/22—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
    • H02K1/2796—Rotors axially facing stators the rotor consisting of two or more circumferentially positioned magnets where both axial sides of the rotor face a stator
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0205—Magnetic circuits with PM in general
    • H01F7/021—Construction of PM
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0205—Magnetic circuits with PM in general
    • H01F7/0221—Mounting means for PM, supporting, coating, encapsulating PM
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/03—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets

Landscapes

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

Abstract

Procédé de fabrication d’une structure d’aimant à plusieurs aimants unitaires Le procédé de fabrication d’une structure d’aimant comprend l’étape de création dans une ébauche (15) de structure d’aimant d’au moins deux groupes de découpes dans le sens de la hauteur de la structure d’aimant, les découpes de chaque groupe étant interrompues en hauteur en formant chacune deux parties et en laissant subsister un intervalle rempli de matière de l’ébauche (15) entre les deux parties d’une même découpe, les deux groupes de découpes délimitant des aimants unitaires dans l’ébauche (15), les intervalles des découpes formant un talon interne à l’ébauche (15) solidarisant entre eux les aimants unitaires et l’étape d’injection de composite dans les découpes en une seule injection pour une obtention de la structure d’aimant finale. Figure de l’abrégé : FIGURE 12Method for manufacturing a magnet structure with several unit magnets The method for manufacturing a magnet structure comprises the step of creating in a blank (15) of a magnet structure at least two groups of cutouts in the direction of the height of the magnet structure, the cutouts of each group being interrupted in height, each forming two parts and leaving an interval filled with material from the blank (15) between the two parts of the same cutout, the two groups of cutouts delimiting unit magnets in the blank (15), the intervals of the cutouts forming an internal heel in the blank (15) securing the unit magnets together and the step of injecting composite into the cutouts in a single injection to obtain the final magnet structure. Abstract figure: FIGURE 12

FR2200535A 2021-02-05 2022-01-21 Method of manufacturing a magnet structure with several unit magnets Active FR3119703B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR2101152A FR3119702B1 (en) 2021-02-05 2021-02-05 Magnet structure with several unitary magnets with reinforced fastening
FR2101152 2021-02-05
FR2106912A FR3119718B1 (en) 2021-06-28 2021-06-28 method of manufacturing an element with magnetic poles
FR2106912 2021-06-28

Publications (2)

Publication Number Publication Date
FR3119703A1 FR3119703A1 (en) 2022-08-12
FR3119703B1 true FR3119703B1 (en) 2025-04-11

Family

ID=81346295

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2200535A Active FR3119703B1 (en) 2021-02-05 2022-01-21 Method of manufacturing a magnet structure with several unit magnets

Country Status (1)

Country Link
FR (1) FR3119703B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022132795A1 (en) * 2022-12-09 2024-06-20 Schaeffler Technologies AG & Co. KG Magnet for a rotor, rotor with magnet, electric machine / axial flux machine and manufacturing process
FR3157025A1 (en) * 2023-12-14 2025-06-20 Valeo Eautomotive Germany Gmbh Rotor for electric machine and axial flux rotating electric machine

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2041958A1 (en) 1970-08-24 1972-03-02 Taschkentskoje Sp K Bjuro Text Device for feeding fibers into a twisting and forming element of a spinning machine
FR2106912A5 (en) 1970-09-29 1972-05-05 Tissot Alain
JPH1198729A (en) * 1997-09-18 1999-04-09 Fanuc Ltd Rotor structure of synchronous motor
JP2000228838A (en) * 1998-12-01 2000-08-15 Toyota Motor Corp Permanent magnet motor
EP2760112B1 (en) * 2013-01-25 2015-08-19 Bomatec Holding AG Permanent magnet, electric machine, and method for manufacturing such a permanent magnet
FR3004025B1 (en) 2013-03-29 2015-03-27 Renault Sa DISCOID ROTOR FOR AN AXIAL FLUX ELECTRIC MOTOR
JP6481642B2 (en) * 2016-03-03 2019-03-13 トヨタ自動車株式会社 Manufacturing method of rotor
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
CN109921525A (en) * 2019-03-19 2019-06-21 甘长泉 A kind of motor magnet ring and magnet reducing eddy current effect
CN112039238A (en) 2020-09-03 2020-12-04 珠海格力电器股份有限公司 Magnetic steel, motor rotor and permanent magnet motor

Also Published As

Publication number Publication date
FR3119703A1 (en) 2022-08-12

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Legal Events

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Effective date: 20221118

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Effective date: 20240301

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TQ Partial transmission of property

Owner name: WHYLOT, FR

Effective date: 20250618

Owner name: AMPERE SAS, FR

Effective date: 20250618