US 12,255,518 B2
Driving motor having BLDC motor and swivel actuator using same
Byung Soo Kim, Incheon (KR)
Assigned to AMOTECH CO., LTD., Incheon (KR)
Appl. No. 18/030,679
Filed by AMOTECH CO., LTD., Incheon (KR)
PCT Filed Oct. 28, 2021, PCT No. PCT/KR2021/015289
§ 371(c)(1), (2) Date Apr. 6, 2023,
PCT Pub. No. WO2022/092840, PCT Pub. Date May 5, 2022.
Claims priority of application No. 10-2020-0141003 (KR), filed on Oct. 28, 2020.
Prior Publication US 2023/0261544 A1, Aug. 17, 2023
Int. Cl. H02K 7/11 (2006.01); H02K 1/14 (2006.01); H02K 1/2706 (2022.01); H02K 7/00 (2006.01); H02K 7/08 (2006.01); H02K 7/116 (2006.01); H02K 11/215 (2016.01); H02K 21/16 (2006.01); F21S 41/657 (2018.01)
CPC H02K 7/1166 (2013.01) [H02K 1/14 (2013.01); H02K 1/2706 (2013.01); H02K 7/003 (2013.01); H02K 7/081 (2013.01); H02K 7/088 (2013.01); H02K 11/215 (2016.01); H02K 21/16 (2013.01); F21S 41/657 (2018.01); H02K 2203/03 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A driving motor for a swivel actuator comprising:
a cylindrical housing having a hollow cylindrical portion protruding from a bottom thereof at a center thereof;
a rotor rotatably coupled to an outer circumference of the hollow cylindrical portion of the housing; and
a stator arranged on the bottom of the housing to rotate the rotor by generating a rotating magnetic field while having an air gap on an outside of the rotor,
wherein a first worm gear is integrally formed on an outer circumferential portion of an extension unit extending to an upper portion of the rotor, and
wherein the housing comprises: a cylindrical body case having open upper and lower portions and first and second step portions of a two-stage structure protruding inside; and a circular lower cover having an outer circumferential portion fixed to a lower end of the body case and a hollow cylindrical portion protruding from a center thereof.