US 12,068,648 B2
Motor
Hiroki Wakabayashi, Tokyo (JP); Takakuni Iitsuka, Tokyo (JP); Yutaka Wakita, Tokyo (JP); and Tetsuhiro Tomita, Tokyo (JP)
Assigned to Sinfonia Technology Co., Ltd., Tokyo (JP)
Appl. No. 17/617,656
Filed by Sinfonia Technology Co., Ltd., Tokyo (JP)
PCT Filed Jun. 16, 2020, PCT No. PCT/JP2020/023505
§ 371(c)(1), (2) Date Dec. 9, 2021,
PCT Pub. No. WO2020/262093, PCT Pub. Date Dec. 30, 2020.
Claims priority of application No. 2019-117635 (JP), filed on Jun. 25, 2019.
Prior Publication US 2022/0247248 A1, Aug. 4, 2022
Int. Cl. H02K 3/24 (2006.01); H02K 1/16 (2006.01); H02K 1/20 (2006.01); H02K 9/19 (2006.01)
CPC H02K 3/24 (2013.01) [H02K 1/165 (2013.01); H02K 1/20 (2013.01); H02K 9/19 (2013.01); H02K 2201/03 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A motor, comprising:
a stator including a plurality of laminated plates; and
a rotor arranged inside the stator with a gap between the rotor and the stator,
wherein the stator further includes an annular yoke located outside of the stator and a plurality of teeth protruding from an inner peripheral surface of the yoke toward the rotor,
wherein slots in which coils wound around the teeth are arranged are formed between the teeth that are adjacently arranged,
wherein gaps to which a cooling medium is supplied are formed between bottom portions of the slots and the coils,
wherein the stator further includes end plate members arranged so as to face the laminated plates, and
wherein one end portion of the gaps in at least one of the slots communicates with cooling medium supply paths formed between the end plate members and the laminated plates of the stator, and the other end portion of the gaps in the at least one of the slots is opened.