US 11,888,350 B2
Stator, stator manufacturing method, motor, and electric vehicle
Ji Pang, Shenzhen (CN); Di Li, Xi'an (CN); Lang Lv, Xi'an (CN); and Chao Cao, Xi'an (CN)
Assigned to Huawei Digital Power Technologies Co., Ltd., Shenzhen (CN)
Filed by Huawei Digital Power Technologies Co., Ltd., Shenzhen (CN)
Filed on Feb. 25, 2022, as Appl. No. 17/680,616.
Claims priority of application No. 202110217741.5 (CN), filed on Feb. 26, 2021.
Prior Publication US 2022/0209591 A1, Jun. 30, 2022
Int. Cl. H02K 1/16 (2006.01); B60K 1/00 (2006.01); H02K 15/02 (2006.01)
CPC H02K 1/165 (2013.01) [B60K 1/00 (2013.01); H02K 15/024 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A stator, comprising:
a plurality of stator tooth parts arranged at intervals along a circumferential direction; and
a stator yoke part disposed along a circumferential direction of the plurality of stator tooth parts, wherein the circumferential direction is a direction around a central axis of the stator; wherein
the plurality of stator tooth parts and the stator yoke part together have a unitary construction formed from an oriented silicon steel strip wound in the shape of a helix around a central axis and sequentially laminated and pressed into a ring shape, and a grain orientation of the formed oriented silicon steel strip is directed at the central axis of the stator along a radial direction, wherein the radial direction is a straight line direction along a radius of the stator.