Invention Grant
- Patent Title: Rotor, motor, compressor, and air conditioner
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Application No.: US16626451Application Date: 2017-08-30
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Publication No.: US11303170B2Publication Date: 2022-04-12
- Inventor: Takanori Watanabe
- 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/JP2017/031243 WO 20170830
- International Announcement: WO2019/043850 WO 20190307
- Main IPC: H02K1/27
- IPC: H02K1/27 ; F24F1/022 ; F25B1/00 ; H02K7/14 ; H02K21/16 ; H02K1/276

Abstract:
A rotor includes a rotor core having an outer circumference extending in a circumferential direction about an axis, and having a magnet insertion hole along the outer circumference, and a permanent magnet disposed in the magnet insertion hole. The rotor core has a plurality of slits formed on an outer side of the magnet insertion hole in a radial direction about the axis, and a bridge extending to connect an inner side and an outer side of the magnet insertion hole in the radial direction. The plurality of slits have a first slit closest to an end of the magnet insertion hole in the circumferential direction, and a second slit closest to the bridge. When T1 represents a shortest distance from the magnet insertion hole to the first slit and R1 represents a shortest distance from the reference point to the second slit, R1>T1 is satisfied.
Public/Granted literature
- US20200220402A1 ROTOR, MOTOR, COMPRESSOR, AND AIR CONDITIONER Public/Granted day:2020-07-09
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