| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotor in which generation of disturbance in a magnetic flux is suppressed.SOLUTION: A rotor includes a first region (10a) in which a plurality of isomagnetic pole parts (11, 12) with different magnetic poles are alternately arranged in a circumferential direction, and a second region (30a) in which a chipped magnetic pole part (30) is provided. The chipped magnetic pole part consists of two ends (31, 32) and a central part (33) arranged between the two ends. The central part includes a first magnetic pole part (34) consisting of the same magnetic pole as those of the ends, and a second magnetic pole part (35) consisting of a magnetic pole different from those of the ends. The area of the second magnetic pole part is smaller than the area of the first magnetic pole part. Different polarity parts (13, 14) with a magnetic pole different from those of the isomagnetic pole parts are provided in the plurality of isomagnetic pole parts, and the area in the circumferential direction of the different polarity part provided in the isomagnetic pole part gradually becomes smaller as apart from the central part toward the circumferential direction so that magnetic force of the plurality of isomagnetic pole parts gradually gets stronger as apart from the central part toward the circumferential direction. |
