US 12,374,943 B2
Rotating electrical machine
Yiming Zou, Shanghai (CN); Yingpeng Zhang, Shanghai (CN); Jiawen Chu, Shanghai (CN); Guanghui Xu, Shanghai (CN); and Tao Yang, Shanghai (CN)
Assigned to SHANGHAI VALEO AUTOMOTIVE ELECTRICAL SYSTEMS CO., LTD., Shanghai (CN)
Appl. No. 18/006,104
Filed by SHANGHAI VALEO AUTOMOTIVE ELECTRICAL SYSTEMS CO., LTD., Shanghai (CN)
PCT Filed Jul. 29, 2021, PCT No. PCT/CN2021/109238
§ 371(c)(1), (2) Date Jan. 19, 2023,
PCT Pub. No. WO2022/022638, PCT Pub. Date Feb. 3, 2022.
Claims priority of application No. 202010743615.9 (CN), filed on Jul. 29, 2020; and application No. 202021530554.X (CN), filed on Jul. 29, 2020.
Prior Publication US 2023/0352996 A1, Nov. 2, 2023
Int. Cl. H02K 1/24 (2006.01); H02K 1/2713 (2022.01)
CPC H02K 1/243 (2013.01) [H02K 2213/03 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A rotating electrical machine, wherein, the rotating electrical machine comprises a stator and a rotor;
the rotor comprises a rotating shaft and magnetic poles fixed to the rotating shaft, a chamfer being provided on a radial outer surface of at least one of the magnetic poles;
the stator comprises a stator core, the stator core being located on one side of the magnetic poles far from the rotating shaft, the chamfer overlapping with the stator core in an axial direction of the rotor;
the magnetic poles comprise at least one pole claw, a chamfering part being provided on the outer surface of the at least one pole claw, the chamfering part forming the at least one chamfer;
the at least one pole claw has one chamfer, the one chamfer being a first chamfer, the first chamfer being located at the root of the pole claw;
the overlapping length of the first chamfer with the stator core in the axial direction satisfies the following relation:
0.01≤L2/L1≤0.3  (1)
where L1 is the length of the stator core; L2 is the overlapping length of the first chamfer with the stator core.