Invention Grant
- Patent Title: Rotor core for rotating electrical machine
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Application No.: US16732600Application Date: 2020-01-02
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Publication No.: US11264861B2Publication Date: 2022-03-01
- Inventor: Masaaki Takemoto
- Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
- Applicant Address: JP Aichi-ken
- Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
- Current Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
- Current Assignee Address: JP Aichi-ken
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JPJP2019-001064 20190108
- Main IPC: H02K1/27
- IPC: H02K1/27 ; H02K5/22 ; H02K1/274

Abstract:
A rotor core for a rotating electrical machine includes a laminated body that has insertion holes, a permanent magnet accommodated inside each of the insertion holes and fixed to the laminated body, and an end plate arranged at an end of the laminated body in the rotation axis direction. The laminated body includes annular flat metal plates that are stacked. A circumferential edge of the end plate is welded and fixed to circumferential edges of the metal plates such that the end plate is arranged at an end of the laminated body in the rotation axis direction to close openings of the insertion holes. A through-hole extends through an outer edge portion of at least one of an outermost metal plate of the laminated body or the end plate.
Public/Granted literature
- US20200220422A1 ROTOR CORE FOR ROTATING ELECTRICAL MACHINE Public/Granted day:2020-07-09
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