Title:
ラジアルギャップ型回転電機、送風機、圧縮機、空気調和機
Document Type and Number:
Japanese Patent JP5418651
Kind Code:
B1
Abstract:
A radial gap type rotating electrical machine which inexpensively enhances a demagnetization resistance of a permanent magnet without deteriorating torque characteristics and efficiency characteristics is provided. An outer rotor type radial gap type rotating electrical machine (9) includes a field (1) and an armature (2). The field (1) includes a permanent magnet (11) and a magnetic ring (12) which serves as a back yoke of the permanent magnet (11). The magnetic ring (12) is provided at a position farther from the armature (2) than the permanent magnet (11), and includes a recess (121) at a magnetic pole center (110). The magnetic pole center (110) is a center of a magnetic pole concerning a circumferential direction with respect to a rotation axis (3). A thickness of the recess (121) in the radial direction around the rotation axis (3) as a center comes to locally thin.
Inventors:
Nakamasu Shin
Nosei Asano
Nosei Asano
Application Number:
JP2012212014A
Publication Date:
February 19, 2014
Filing Date:
September 26, 2012
Export Citation:
Assignee:
Daikin Industries, Ltd.
International Classes:
H02K1/27; F04B39/00; F04D29/00; H02K21/22
Domestic Patent References:
| JP5153744A | ||||
| JP2008086166A | ||||
| JP2000184643A | ||||
| JP2007244026A | ||||
| JP2009278857A | ||||
| JP2009278838A | ||||
| JP61094548A |
Attorney, Agent or Firm:
Yoshitake Hidetoshi
Takahiro Arita
Tomohiro Fukuichi
Takahiro Arita
Tomohiro Fukuichi