US 12,249,866 B2
Stator structure
Chun-Nan Wu, Taoyuan (TW); and Yang-Hsin Lee, Taoyuan (TW)
Assigned to Delta Electronics, Inc., Taoyuan (TW)
Filed by Delta Electronics, Inc., Taoyuan (TW)
Filed on Sep. 20, 2022, as Appl. No. 17/948,776.
Claims priority of application No. 202210325935.1 (CN), filed on Mar. 29, 2022.
Prior Publication US 2023/0318364 A1, Oct. 5, 2023
Int. Cl. H02K 1/04 (2006.01); H02K 1/14 (2006.01)
CPC H02K 1/04 (2013.01) [H02K 1/146 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A stator structure, comprising:
a silicon steel sheet having a plurality of pole faces;
a first plastic material completely covering on the silicon steel sheet; and
a second plastic material forming on the first plastic material;
wherein a portion of the first plastic material covered on the plurality of the pole faces is not covered by the second plastic material, and the thermal conductivity of the first plastic material is higher than that of the second plastic material.