Patent ID: 11888368
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  C | IPC H

Claim 14:
15. A rotor having 2n (n is a natural number) magnetic poles, comprising:
at least one first permanent magnet forming part of an outer peripheral surface of the rotor and magnetized to have polar anisotropy; and
at least one second permanent magnet that is a different type from the at least one first permanent magnet, is adjacent to the at least one first permanent magnet in a circumferential direction of the rotor, has lower magnetic force than magnetic force of the at least one first permanent magnet, and is magnetized to have polar anisotropy, and
the at least one second permanent magnet is a single integral ring-shaped magnet,
both ends of the at least one first permanent magnet in an axial direction overlap each other by an angle w1 [degrees] in a plane orthogonal to the axial direction of the rotor, and
the angle w1 satisfies 0<w1<0.2×2n/360.