US 11,942,823 B2
Motor
Tae Ho Kim, Seoul (KR)
Assigned to LG INNOTEK CO., LTD., Seoul (KR)
Appl. No. 17/271,711
Filed by LG INNOTEK CO., LTD., Seoul (KR)
PCT Filed Aug. 27, 2019, PCT No. PCT/KR2019/010884
§ 371(c)(1), (2) Date Feb. 26, 2021,
PCT Pub. No. WO2020/050535, PCT Pub. Date Mar. 12, 2020.
Claims priority of application No. 10-2018-0104808 (KR), filed on Sep. 3, 2018.
Prior Publication US 2021/0320540 A1, Oct. 14, 2021
Int. Cl. H02K 1/18 (2006.01); H02K 1/14 (2006.01); H02K 1/16 (2006.01); H02K 3/34 (2006.01); B62D 5/04 (2006.01)
CPC H02K 1/18 (2013.01) [H02K 1/148 (2013.01); H02K 1/165 (2013.01); H02K 3/345 (2013.01); B62D 5/04 (2013.01); H02K 2213/03 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A motor comprising:
a shaft;
a rotor coupled to the shaft; and
a stator disposed to correspond to the rotor,
wherein the stator includes a stator core formed by arranging a plurality of unit stator cores in a circumferential direction, welding portions connecting the plurality of unit stator cores, an insulator disposed on the stator core, and a coil wound around the insulator,
wherein the insulator includes a body around which the coil is wound, an inner guide protruding from an inner side of the body in a shaft direction, an outer guide protruding from an outer side of the body in the shaft direction, and protrusions protruding from the outer guide in the circumferential direction,
wherein each unit stator core includes a unit yoke having an arc shape and a unit tooth protruding from the unit yoke,
wherein the protrusions are disposed to cover one portion of each of the upper and lower surfaces of the unit yoke, and
wherein the welding portions are disposed on the upper and lower surfaces, on which the protrusions are not disposed, of the unit yoke.