US 12,463,475 B2
Stator and brushless motor
Hideki Tamura, Shiga (JP); Kenji Okada, Osaka (JP); Mitsumasa Mizuno, Osaka (JP); and Yuya Ako, Osaka (JP)
Assigned to Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
Appl. No. 18/274,753
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
PCT Filed Dec. 20, 2021, PCT No. PCT/JP2021/046970
§ 371(c)(1), (2) Date Jul. 28, 2023,
PCT Pub. No. WO2022/172593, PCT Pub. Date Aug. 18, 2022.
Claims priority of application No. 2021-022081 (JP), filed on Feb. 15, 2021.
Prior Publication US 2024/0097511 A1, Mar. 21, 2024
Int. Cl. H02K 1/18 (2006.01); H02K 1/16 (2006.01); H02K 3/34 (2006.01)
CPC H02K 1/185 (2013.01) [H02K 1/16 (2013.01); H02K 3/34 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A stator comprising:
a plurality of stator blocks aligned along a circumferential direction;
a plurality of coils each made of a winding wound around a corresponding one of the plurality of stator blocks; and
a plurality of insulation members electrically insulating the plurality of stator blocks from the plurality of coils for respective groups of the plurality of stator blocks and the plurality of coils,
each of the plurality of stator blocks including
a yoke portion located at its outermost perimeter and
a teeth portion protruding from an inner peripheral surface of the yoke portion,
each of the plurality of insulation members including
a pair of insulating plates arranged to face each other across the teeth portion and
at least one fixing portion to be fixed to a corresponding one stator block of the plurality of stator blocks,
the pair of insulating plates having a width greater than a width of the teeth portion.