Title:
永久磁石埋込型電動機の回転子、及びこの回転子を備えた電動機、及びこの電動機を備えた圧縮機、及びこの圧縮機を備えた空気調和機
Document Type and Number:
Japanese Patent JP5889340
Kind Code:
B2
Abstract:
A rotor for a permanent-magnet-embedded electric motor includes slit holes each axially formed near opposite ends of a magnetic pole between an outer peripheral face of a rotor core and a magnet insertion hole, and forming a symmetrical shape in an approximately truncated chevron shape along the outer peripheral face of the rotor core, based on a centerline of each of the magnetic poles, wherein a thickness of each of permanent magnets is set to be twice or more of an air gap, a width of a shortest magnetic path in which a distance between the slit hole and the permanent magnet becomes shortest is set to be twice or more of the air gap, and an inclination of the slit hole with respect to a width direction of the permanent magnet orthogonal to a radial direction is set to be in a range from 0 to 30 degrees.
More Like This:
| JP2003224942 | ELECTROMAGNETIC ROTATING MACHINE |
| WO/2006/097196 | ELECTRIC INDUCTION MACHINE |
| WO/2020/089991 | ROTOR, MOTOR, COMPRESSOR, AND REFRIGERATION AND AIR-CONDITIONING DEVICE |
Inventors:
Nigo Masahiro
Kazuhiko Baba
Kazuyoshi Tsuchida
Kazuhiko Baba
Kazuyoshi Tsuchida
Application Number:
JP2013556104A
Publication Date:
March 22, 2016
Filing Date:
January 30, 2012
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
H02K1/27
Domestic Patent References:
| JP2002354727A | ||||
| JP2000278896A | ||||
| JP11220846A | ||||
| JP2008092715A |
Foreign References:
| US20100156234 |
Attorney, Agent or Firm:
Hiroaki Sakai