Title:
ROTATING ELECTRIC MACHINE
Document Type and Number:
WIPO Patent Application WO/2023/144957
Kind Code:
A1
Abstract:
Provided is a rotating electric machine in which harmonic electromagnetic excitation force occurring at the gap due to a harmonic component can be reduced. A rotating electric machine (1) comprises a rotor (20) and a stator (10) having a plurality of teeth (14), wherein the end portions of the teeth are provided with projection portions (17). In a cross-section in the direction orthogonal to a rotating shaft (13), first low permeability portions (18a) are provided between the end portions of the projection portions on the rotation direction side in the circumferential direction and the end portions of the teeth in the circumferential direction, and second low permeability portions (18b) are provided between the end portions of the projection portions on the reverse rotation direction side in the circumferential direction and the end portions of the teeth in the circumferential direction. The width of the first low permeability portions in the circumferential direction is smaller than the width of the second low permeability portions in the circumferential direction.
Inventors:
KONDO TOSHINARI (JP)
MIZUTA TAKAHIRO (JP)
MIZUTA TAKAHIRO (JP)
Application Number:
PCT/JP2022/003047
Publication Date:
August 03, 2023
Filing Date:
January 27, 2022
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02K1/276
Foreign References:
| JP2014036547A | 2014-02-24 | |||
| JP2005328629A | 2005-11-24 | |||
| JP2012029558A | 2012-02-09 | |||
| JPS55153268A | 1980-11-29 |
Attorney, Agent or Firm:
PALMO PATENT FIRM, P.C. (JP)
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