US 11,791,678 B2
Motor and rotor structure thereof
Min-Fu Hsieh, Tainan (TW); Mi-Ching Tsai, Tainan (TW); Kai-Jung Shih, Tainan (TW); Lucio Jose Fernando Caceres Vera, Tainan (TW); and Guan-Ming Chen, Kaohsiung (TW)
Assigned to National Cheng Kung University, Tainan (TW)
Filed by NATIONAL CHENG KUNG UNIVERSITY, Tainan (TW)
Filed on Feb. 25, 2021, as Appl. No. 17/184,851.
Prior Publication US 2022/0271581 A1, Aug. 25, 2022
Int. Cl. H02K 1/27 (2022.01); H02K 21/14 (2006.01); H02K 1/276 (2022.01)
CPC H02K 1/276 (2013.01) [H02K 21/14 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A rotor structure for a motor, comprising:
a rotor core, the rotor core being configured with a plurality of receiving notches separated by ribs, wherein the rotor core has a plurality of magnetic member units arranged around a periphery of the rotor core, each magnetic member unit including two first magnetic members and a second magnetic member, wherein each first magnetic member of said two first magnetic members has a respective first end and a respective second end, the two first magnetic members being obliquely arranged in a V shape relative to a center of the rotor core with the respective first ends thereof disposed in a close proximity to one another, and the second magnetic member extending transversely between the respective second ends of said two first magnetic members in each of said plurality of magnetic units, wherein said each first magnetic member is configured with a plurality of permanent magnets aligned along a respective substantially straight line between said respective first and second ends of said each first magnetic member, wherein adjacent permanent magnets of said plurality of permanent magnets in said each first magnetic member are received in adjacent respective receiving notches of said plurality thereof spaced apart from one another by a respective rib along said respective substantially straight line, said respective straight lines of said two first magnetic members being arranged obliquely.