| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotor capable of being easily manufactured while achieving both reduction in a torque ripple and improvement of a detent torque. ! SOLUTION: A rotor 14 is an SPM type at an outer periphery of which a field magnet 22 is disposed. The field magnet 22 is constituted of a bond magnet. At an outer periphery surface of the field magnet 22, first and second auxiliary grooves 23a, 23b are provided as gap parts for improving a detent torque. ! COPYRIGHT: (C)2015,JPO&INPIT |
