US 11,942,849 B2
Motor
Hee Soo Lim, Seoul (KR)
Assigned to LG INNOTEK CO., LTD., Seoul (KR)
Appl. No. 17/270,750
Filed by LG INNOTEK CO., LTD., Seoul (KR)
PCT Filed Aug. 27, 2019, PCT No. PCT/KR2019/010882
§ 371(c)(1), (2) Date Feb. 23, 2021,
PCT Pub. No. WO2020/045936, PCT Pub. Date Mar. 5, 2020.
Claims priority of application No. 10-2018-0102693 (KR), filed on Aug. 30, 2018.
Prior Publication US 2021/0281139 A1, Sep. 9, 2021
Int. Cl. H02K 5/04 (2006.01); H02K 1/14 (2006.01)
CPC H02K 5/04 (2013.01) [H02K 1/146 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A motor comprising:
a housing; and
a stator disposed in the housing,
wherein the housing includes a body and a plurality of protrusions protruding inward from an inner surface of the body and disposed to be spaced apart from each other in a circumferential direction,
the stator includes a stator core and a coil wound around the stator core,
an outer circumferential surface of the stator core forms a circle at a radius,
the inner surface of the body is spaced apart from an outer circumferential surface of the stator core, and
an inner surface of the protrusion is in contact with the outer circumferential surface of the stator core,
wherein the stator core includes yokes formed in a ring shape and teeth protruding from the yokes in a radial direction,
wherein each of the plurality of protrusions is not disposed in a first width area between two virtual lines each extending along a corresponding one side surface of one of the plurality of teeth of the stator core, plus an additional width at each side of the two virtual lines, the additional width being at least 10 percent of a width of the first width area.