US 12,266,981 B2
Rotor and sensorless control method for rotor
Hyo Jeong Lee, Gyeonggi-do (KR); Kyoung Ku Ha, Seoul (KR); Hong Seok Kim, Incheon (KR); Sung Il Kim, Chungcheongnam-do (KR); Young Doo Yoon, Seoul (KR); Hyun Sung Kim, Chungcheongnam-do (KR); Sang Gyu Lee, Seoul (KR); and Min Seong Lee, Seoul (KR)
Assigned to Hyundai Motor Company, Seoul (KR); Kia Corporation, Seoul (KR); and IUCF-HYU (Industry-University Cooperation Foundation Hanyang University), Seoul (KR)
Filed by Hyundai Motor Company, Seoul (KR); Kia Corporation, Seoul (KR); and IUCF-HYU (Industry-University Cooperation Foundation Hanyang University), Seoul (KR)
Filed on Mar. 28, 2023, as Appl. No. 18/127,379.
Claims priority of application No. 10-2022-0087037 (KR), filed on Jul. 14, 2022.
Prior Publication US 2024/0030764 A1, Jan. 25, 2024
Int. Cl. H02K 1/28 (2006.01); H02K 1/278 (2022.01); H02P 21/13 (2006.01); H02P 21/18 (2016.01)
CPC H02K 1/28 (2013.01) [H02K 1/278 (2013.01); H02P 21/13 (2013.01); H02P 21/18 (2016.02); H02P 2207/055 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A rotor, comprising:
a sleeve part having a shape corresponding to a cylinder and extending lengthwise in a reference direction, and having an inner hole in an interior thereof and extending in the reference direction;
a division part disposed in the inner hole, and being configured to divide the inner hole into a first space and a second space;
a first magnet part disposed in the first space; and
a second magnet part disposed in the second space,
wherein, when viewed along the reference direction, the second magnet part is disposed to have an opposite polarity to that of the first magnet part.