Title:
永久磁石埋込型モータの回転子並びに圧縮機及び冷凍空調装置
Document Type and Number:
Japanese Patent JP5959616
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a rotor of a permanent magnet-embedded motor capable of reducing torque ripple by reducing harmonics of an induced voltage, and to provide a compressor including the rotor, and a refrigeration air conditioning apparatus including the compressor.SOLUTION: In an interpolar part 15, the width of an iron core existing between a permanent magnet end cavity 8 and a slit 7, and the width of an iron core existing between the adjacent slits 7 become wider gradually from the inter-pole 9 toward the magnetic pole center 10. The width A3 of a core closest to the magnetic pole center 10, among the cores existing between the adjacent slits 7 in the interpolar part 15, is equal to or larger than the width C1 of a core existing in the magnetic pole central part 16 and closest to the inter-pole 9 side, among the cores existing between the adjacent slits 7.
Inventors:
Koji Yabe
Kazuhiko Baba
Kazuhiko Baba
Application Number:
JP2014264526A
Publication Date:
August 02, 2016
Filing Date:
December 26, 2014
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
H02K1/27
Foreign References:
| US20080224558 |
Attorney, Agent or Firm:
Hiroaki Sakai