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

Claim 17:
18. A method for fabricating a rotor including a first permanent magnet and a second permanent magnet, the second permanent magnet being adjacent to the first permanent magnet in a circumferential direction and having lower magnetic force than magnetic force of the first permanent magnet, the method comprising:
generating a magnetic field having polar anisotropy inside a mold for the second permanent magnet, by using a magnet for magnetization;
molding the second permanent magnet magnetized to have polar anisotropy into a single integral ring-shaped magnet, by injection molding;
generating a magnetic field having polar anisotropy inside a mold for the first permanent magnet, by using a magnet for magnetization; and
molding the first permanent magnet by injection molding on an outer peripheral surface of the second permanent magnet so that the first permanent magnet forms part of an outer peripheral surface of the rotor, in a state where the second permanent magnet is disposed inside the mold for the first permanent magnet.