Title:
ROTOR
Document Type and Number:
Japanese Patent JP2011030325
Kind Code:
A
Abstract:
To provide a rotor in which the vibration caused by the whirling motion of the rotor is suppressed.
A plurality of permanent magnets 20 are arranged in a ring shape around a predetermined axis P. A rotor core 10 includes 2N (N is a natural number of 3 or more) pole faces for generating magnetic poles oriented toward the radial direction and having alternately different polarities around the axis P by using the permanent magnets 20 and ((N-1)×2) magnetic barrier parts 111 provided on the pole face side with respect to the permanent magnets 20. Each of the magnetic barrier parts 111 is provided in each of the regions obtained by dividing the rotor core into ((N-1)×2) equal angles around the axis P.
Inventors:
ARAKI TATSUTARO
YAMAGIWA AKIO
YAMAGIWA AKIO
Application Number:
JP2009172013A
Publication Date:
February 10, 2011
Filing Date:
July 23, 2009
Export Citation:
Assignee:
DAIKIN IND LTD
International Classes:
H02K1/27
Domestic Patent References:
| JP2002252947A | 2002-09-06 | |||
| JP2005176424A | 2005-06-30 | |||
| JP2009027852A | 2009-02-05 |
Attorney, Agent or Firm:
Yoshitake Hidetoshi
Takahiro Arita
Tomohiro Fukuichi
Takahiro Arita
Tomohiro Fukuichi