US 12,149,140 B2
Electric motor assembly
Joohang Kang, Seoul (KR); Hyeonho Ha, Seoul (KR); Yongdae Kim, Seoul (KR); and Jin Hong, Seoul (KR)
Assigned to LG Electronics Inc., Seoul (KR)
Filed by LG Electronics Inc., Seoul (KR)
Filed on Jun. 27, 2023, as Appl. No. 18/342,351.
Application 18/342,351 is a continuation of application No. 17/406,691, filed on Aug. 19, 2021, granted, now 11,728,706.
Claims priority of application No. 10-2020-0129510 (KR), filed on Oct. 7, 2020.
Prior Publication US 2023/0344297 A1, Oct. 26, 2023
Int. Cl. H02K 3/34 (2006.01); H02K 1/14 (2006.01); H02K 3/52 (2006.01); H02K 9/06 (2006.01)
CPC H02K 3/345 (2013.01) [H02K 1/146 (2013.01); H02K 3/34 (2013.01); H02K 3/522 (2013.01); H02K 9/06 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method for manufacturing an electric motor assembly that comprises a stator provided with a stator core, a stator coil wound around the stator core, an insulator interposed between the stator core and the stator coil, and a rotor rotatable relative to the stator, wherein the stator core comprises a yoke having a ring shape and a plurality of teeth coupled to an inner surface of the yoke, and wherein the insulator comprises a yoke insulator having a first yoke insulator and a second yoke insulator coupled to both sides of the yoke in an axial direction, and tooth insulators each having a first tooth insulator and a second tooth insulator coupled to both sides of each of the plurality of teeth, respectively, in the axial direction, the method comprising:
coupling the first tooth insulator and the second tooth insulator to each of the plurality of teeth;
winding coil parts of the stator coil around the tooth insulators, respectively;
coupling the first yoke insulator to one side of the yoke;
coupling the plurality of teeth to the yoke and the first yoke insulator; and
coupling the second yoke insulator to another side of the yoke.