FR3074978B1 - ROTATING ELECTRIC MACHINE PROVIDED WITH HOLDERS FOR PERMANENT MAGNET SPRINGS - Google Patents

ROTATING ELECTRIC MACHINE PROVIDED WITH HOLDERS FOR PERMANENT MAGNET SPRINGS Download PDF

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Publication number
FR3074978B1
FR3074978B1 FR1761900A FR1761900A FR3074978B1 FR 3074978 B1 FR3074978 B1 FR 3074978B1 FR 1761900 A FR1761900 A FR 1761900A FR 1761900 A FR1761900 A FR 1761900A FR 3074978 B1 FR3074978 B1 FR 3074978B1
Authority
FR
France
Prior art keywords
permanent magnet
cavity
holders
electric machine
rotating electric
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
FR1761900A
Other languages
French (fr)
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FR3074978A1 (en
Inventor
Johnny Duarte
Benoit Walme
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.)
Valeo Equipements Electriques Moteur SAS
Original Assignee
Valeo Equipements Electriques Moteur 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 Valeo Equipements Electriques Moteur SAS filed Critical Valeo Equipements Electriques Moteur SAS
Priority to FR1761900A priority Critical patent/FR3074978B1/en
Publication of FR3074978A1 publication Critical patent/FR3074978A1/en
Application granted granted Critical
Publication of FR3074978B1 publication Critical patent/FR3074978B1/en
Active legal-status Critical Current
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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
    • H02K1/2706—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]
    • H02K1/2766—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect
    • H02K1/2773—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect consisting of tangentially magnetized radial 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
    • H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures

Abstract

L'invention porte principalement sur une machine électrique tournante, notamment pour véhicule automobile, par exemple pour un compresseur de climatisation de véhicule automobile, comportant: - un stator, - un rotor (12) comportant un corps (21) muni de cavités (28) et au moins un aimant permanent (33) disposé à l'intérieur d'une cavité (28), - un ressort (40) de maintien de l'aimant permanent (33) positionné à l'intérieur de la cavité (28), caractérisée en ce que - le corps de rotor (21) comporte au moins une butée de maintien (44) agencée pour maintenir une portion d'extrémité du ressort de maintien (40), - la butée de maintien (44) étant disposée entre une face de fond de la cavité (28) et l'aimant (33), - la portion d'extrémité du ressort de maintien (40) étant disposée entre le fond de la cavité (28) et la butée de maintien (44).The invention relates mainly to a rotary electrical machine, in particular for a motor vehicle, for example for a motor vehicle air conditioning compressor, comprising: - a stator, - a rotor (12) comprising a body (21) provided with cavities (28 ) and at least one permanent magnet (33) disposed inside a cavity (28), - a spring (40) for holding the permanent magnet (33) positioned inside the cavity (28) , characterized in that - the rotor body (21) comprises at least one retaining stop (44) arranged to hold an end portion of the retaining spring (40), - the retaining stop (44) being arranged between a bottom face of the cavity (28) and the magnet (33), - the end portion of the retaining spring (40) being disposed between the bottom of the cavity (28) and the retaining stop (44) .

FR1761900A 2017-12-11 2017-12-11 ROTATING ELECTRIC MACHINE PROVIDED WITH HOLDERS FOR PERMANENT MAGNET SPRINGS Active FR3074978B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1761900A FR3074978B1 (en) 2017-12-11 2017-12-11 ROTATING ELECTRIC MACHINE PROVIDED WITH HOLDERS FOR PERMANENT MAGNET SPRINGS

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1761900 2017-12-11
FR1761900A FR3074978B1 (en) 2017-12-11 2017-12-11 ROTATING ELECTRIC MACHINE PROVIDED WITH HOLDERS FOR PERMANENT MAGNET SPRINGS

Publications (2)

Publication Number Publication Date
FR3074978A1 FR3074978A1 (en) 2019-06-14
FR3074978B1 true FR3074978B1 (en) 2020-06-12

Family

ID=61913274

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1761900A Active FR3074978B1 (en) 2017-12-11 2017-12-11 ROTATING ELECTRIC MACHINE PROVIDED WITH HOLDERS FOR PERMANENT MAGNET SPRINGS

Country Status (1)

Country Link
FR (1) FR3074978B1 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004357418A (en) * 2003-05-29 2004-12-16 Honda Motor Co Ltd Permanent magnet fixing structure in rotor for rotating electric machine
DE202010017376U1 (en) * 2010-08-16 2014-01-08 Robert Bosch Gmbh Attaching magnets to a rotor
DE102011084292A1 (en) * 2011-10-11 2013-04-11 Robert Bosch Gmbh Rotor or stator with radially mounted permanent magnet
DE102011122023A1 (en) * 2011-12-23 2013-06-27 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg Robot sheet package of an electric motor
FR2991118B1 (en) * 2012-05-24 2015-11-13 Valeo Equip Electr Moteur ELECTRIC MACHINE ROTOR AND DEVICE FOR MAINTAINING PERMANENT MAGNETS
FR2991523B1 (en) * 2012-05-30 2015-11-06 Valeo Equip Electr Moteur ELECTRIC MACHINE ROTOR AND SPRING FOR PERMANENT PERMANENT MAGNET RADIAL MAINTENANCE
DE102012218343A1 (en) * 2012-10-09 2014-04-10 Robert Bosch Gmbh Clamping means for mechanically fixing magnets in a spoke rotor
FR3028360B1 (en) * 2014-11-12 2019-03-22 Valeo Equipements Electriques Moteur MAGNET HOLDING DEVICE FOR ROTOR

Also Published As

Publication number Publication date
FR3074978A1 (en) 2019-06-14

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