Invention Application
- Patent Title: MOTOR, ROTOR, COMPRESSOR, AND REFRIGERATION AND AIR CONDITIONING APPARATUS
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Application No.: US15758024Application Date: 2015-11-02
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Publication No.: US20180248428A1Publication Date: 2018-08-30
- Inventor: Masahiro NIGO , Yuji HIROSAWA , Ryukichi KIJIMA
- Applicant: Mitsubishi Electric Corporation
- International Application: PCT/JP2015/080956 WO 20151102
- Main IPC: H02K1/27
- IPC: H02K1/27 ; H02K1/02 ; H01F1/057 ; F04C29/00 ; F25B31/02 ; F25B1/04

Abstract:
A motor includes a stator and a rotor provided inside the stator. The rotor includes a rotor core having a magnet insertion hole and two permanent magnets disposed in the magnet insertion hole. The rotor core has a first magnet holding portion disposed between the two permanent magnets and holding the two permanent magnets, an opening disposed on an inner side of the first magnet holding portion in a radial direction of the rotor core, and a center hole disposed at a center of the rotor core in the radial direction. A distance from the opening to the magnet insertion hole is shorter than a distance from the opening to the center hole.
Public/Granted literature
- US11018535B2 Motor, rotor, compressor, and refrigeration and air conditioning apparatus Public/Granted day:2021-05-25
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