Title:
同期電動機の回転子及び同期電動機
Document Type and Number:
Japanese Patent JP5171767
Kind Code:
B2
Abstract:
To provide a rotor of a synchronous motor capable of improving output and efficiency with no increase in vibration and noise.
In the synchronous motor of 3-phase 12n-slot 10n-pole (n is natural number), a frequency component contained in the magnetic flux density distribution waveform on the surface of a rotor contains at least a third harmonic component by a predetermined quantity with a waveform of the amount of single pair of magnetic poles as a basic waveform. So the amplitude of the basic wave component contained in the magnetic flux density distribution waveform comes to be larger than the amplitude of the magnetic flux density distribution waveform by a predetermined rate or more.
COPYRIGHT: (C)2011,JPO&INPIT
Inventors:
Atsushi Matsuoka
Kazuhiko Baba
Kazuhiko Baba
Application Number:
JP2009210033A
Publication Date:
March 27, 2013
Filing Date:
September 11, 2009
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
H02K1/27
Domestic Patent References:
| JP2006174692A | ||||
| JP2009189155A |
Attorney, Agent or Firm:
Shoji Mizoi