Invention Grant
- Patent Title: Rotor, electric motor, air blower, air conditioner, and method for fabricating rotor
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Application No.: US17413353Application Date: 2018-12-17
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Publication No.: US11888368B2Publication Date: 2024-01-30
- Inventor: Takanori Watanabe , Hiroki Aso
- Applicant: Mitsubishi Electric Corporation
- Applicant Address: JP Tokyo
- Assignee: Mitsubishi Electric Corporation
- Current Assignee: Mitsubishi Electric Corporation
- Current Assignee Address: JP Tokyo
- Agency: POSZ LAW GROUP, PLC
- International Application: PCT/JP2018/046344 2018.12.17
- International Announcement: WO2020/129123A 2020.06.25
- Date entered country: 2021-06-11
- Main IPC: H02K21/16
- IPC: H02K21/16 ; H01F41/02 ; H02K1/2733 ; H02K1/2746 ; H02K1/2786 ; H02K7/14 ; H02K15/03 ; H02K1/278

Abstract:
A rotor includes at least one first permanent magnet and at least one second permanent magnet. The at least one first permanent magnet forms part of an outer peripheral surface of the rotor and is magnetized to have polar anisotropy. The at least one second permanent magnet is adjacent to the at least one first permanent magnet in a circumferential direction of the rotor and has lower magnetic force than magnetic force of the at least one first permanent magnet.
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