Invention Grant
- Patent Title: Rotor, electric motor, and rotor production method
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Application No.: US18069231Application Date: 2022-12-21
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Publication No.: US12334779B2Publication Date: 2025-06-17
- Inventor: Yuji Sasaki , Naoki Oiwa , Natsuki Yoneyama , Yohei Sakakibara
- Applicant: IHI Corporation
- Applicant Address: JP Tokyo
- Assignee: IHI Corporation
- Current Assignee: IHI Corporation
- Current Assignee Address: JP Tokyo
- Agency: SOEI PATENT & LAW FIRM
- Priority: JP2020-133110 20200805
- Main IPC: H02K1/27
- IPC: H02K1/27 ; H02K1/278 ; H02K1/28 ; H02K15/03 ; H02K15/12 ; H02K21/14

Abstract:
A rotor includes a cylindrical magnet structure extending in an axial direction to cover a shaft, and a protective tube including a fiber body covering an outer circumferential surface of the magnet structure. The outer circumferential surface of the magnet structure has a first tapered surface gradually decreasing in diameter toward a first end surface of the magnet structure, and a second tapered surface gradually decreasing in diameter toward a second end surface opposite the first end surface in the axial direction. The protective tube includes a first end portion that is bonded to the first tapered surface of the magnet structure, and a second end portion that is bonded to the second tapered surface of the magnet structure.
Public/Granted literature
- US20230118484A1 ROTOR, ELECTRIC MOTOR, AND ROTOR PRODUCTION METHOD Public/Granted day:2023-04-20
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