WO2023062306A3 - Stator for a rotating electric machine - Google Patents

Stator for a rotating electric machine Download PDF

Info

Publication number
WO2023062306A3
WO2023062306A3 PCT/FR2022/051896 FR2022051896W WO2023062306A3 WO 2023062306 A3 WO2023062306 A3 WO 2023062306A3 FR 2022051896 W FR2022051896 W FR 2022051896W WO 2023062306 A3 WO2023062306 A3 WO 2023062306A3
Authority
WO
WIPO (PCT)
Prior art keywords
stator
sheets
slots
electric machine
rotating electric
Prior art date
Application number
PCT/FR2022/051896
Other languages
French (fr)
Other versions
WO2023062306A2 (en
Inventor
Sara BAZHAR
Original Assignee
Nidec Psa Emotors
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 Nidec Psa Emotors filed Critical Nidec Psa Emotors
Publication of WO2023062306A2 publication Critical patent/WO2023062306A2/en
Publication of WO2023062306A3 publication Critical patent/WO2023062306A3/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/03—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
    • 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
    • H02K1/16—Stator cores with slots for windings
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
    • H02K2201/06—Magnetic cores, or permanent magnets characterised by their skew

Abstract

Disclosed is a stator (1) for a rotating electric machine, comprising a stator mass (2) formed by a stack of sheets, the sheets comprising teeth (4) forming notches (3) therebetween which are symmetrical relative to a radial axis of the notch, and electric conductors accommodated in the notches (3), at least one of the sheets of the stator mass (2) having a plurality of slots (10) formed in the teeth (4) at the end thereof facing the air gap (E), the stator mass being composed of a plurality of packs (2a, 2b) of sheets arranged consecutively along a longitudinal axis X of the stator, the slots (10) in the sheets of a first pack (2a) being angularly offset relative to the slots in the sheets of a second pack (2b).
PCT/FR2022/051896 2021-10-12 2022-10-06 Stator for a rotating electric machine WO2023062306A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FRFR2110780 2021-10-12
FR2110780A FR3128074A1 (en) 2021-10-12 2021-10-12 Stator of rotating electric machine

Publications (2)

Publication Number Publication Date
WO2023062306A2 WO2023062306A2 (en) 2023-04-20
WO2023062306A3 true WO2023062306A3 (en) 2023-06-08

Family

ID=78820576

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2022/051896 WO2023062306A2 (en) 2021-10-12 2022-10-06 Stator for a rotating electric machine

Country Status (2)

Country Link
FR (1) FR3128074A1 (en)
WO (1) WO2023062306A2 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0375228A1 (en) * 1988-12-22 1990-06-27 General Electric Company Electronically commutated motor and stationary assembly therefor with teeth faces having notches and having a skew between the slots and the permanent magnet field to reduce cogging
EP1450462A1 (en) * 2003-02-18 2004-08-25 Minebea Co., Ltd. Rotor and stator for an electrical machine with reduced cogging torque
DE102015117728A1 (en) * 2014-10-31 2016-05-04 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Permanent magnet motor
DE102016105549A1 (en) * 2015-03-27 2016-09-29 Aisin Seiki Kabushiki Kaisha ROTATING ELECTRIC MACHINE
US20170040853A1 (en) * 2011-12-31 2017-02-09 Philip Totaro Low axial force permanent magnet machine and magnet assembly for permanent magnet machine
EP3361604A1 (en) * 2017-02-13 2018-08-15 Valeo Equipements Electriques Moteur Stator of an electric rotating machine
WO2019234031A1 (en) * 2018-06-07 2019-12-12 Moteurs Leroy-Somer Stator for a rotating electrical machine
FR3093384A1 (en) * 2019-02-28 2020-09-04 Nidec Psa Emotors Rotating Electric Machine Stator

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2110780A5 (en) 1970-10-30 1972-06-02 Progil
JP3691345B2 (en) 2000-05-25 2005-09-07 三菱電機株式会社 Permanent magnet type motor
JP6253849B2 (en) 2015-04-22 2017-12-27 三菱電機株式会社 Rotating electric machine and electric power steering device
CN108512320A (en) 2018-05-30 2018-09-07 广东威灵电机制造有限公司 Stator core and electric rotating machine
JP2020018122A (en) * 2018-07-26 2020-01-30 株式会社デンソー Rotary electric machine
KR102654530B1 (en) * 2018-12-27 2024-04-03 현대자동차주식회사 Interior permanent magnet motor and rotator including thereof

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0375228A1 (en) * 1988-12-22 1990-06-27 General Electric Company Electronically commutated motor and stationary assembly therefor with teeth faces having notches and having a skew between the slots and the permanent magnet field to reduce cogging
EP1450462A1 (en) * 2003-02-18 2004-08-25 Minebea Co., Ltd. Rotor and stator for an electrical machine with reduced cogging torque
US20170040853A1 (en) * 2011-12-31 2017-02-09 Philip Totaro Low axial force permanent magnet machine and magnet assembly for permanent magnet machine
DE102015117728A1 (en) * 2014-10-31 2016-05-04 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Permanent magnet motor
DE102016105549A1 (en) * 2015-03-27 2016-09-29 Aisin Seiki Kabushiki Kaisha ROTATING ELECTRIC MACHINE
EP3361604A1 (en) * 2017-02-13 2018-08-15 Valeo Equipements Electriques Moteur Stator of an electric rotating machine
WO2019234031A1 (en) * 2018-06-07 2019-12-12 Moteurs Leroy-Somer Stator for a rotating electrical machine
FR3093384A1 (en) * 2019-02-28 2020-09-04 Nidec Psa Emotors Rotating Electric Machine Stator

Also Published As

Publication number Publication date
WO2023062306A2 (en) 2023-04-20
FR3128074A1 (en) 2023-04-14

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