Title:
永久磁石型回転モータ
Document Type and Number:
Japanese Patent JP4691376
Kind Code:
B2
Abstract:
A permanent magnet rotary motor is provided in which cogging torque can be reduced and an increase in copper loss can also be prevented. A first divided core unit 13 is combined with a second divided core unit 15, thereby constituting a stator core 9. The first divided core unit 13 constitutes a yoke portion 17. The second divided core unit 15 includes pole pieces 25, magnetic pole surface constituent portions 27, and first and second type connecting portions 29A and 29B each mutually couple two adjacent magnetic pole surface constituent portions 27, all of which are formed integral with one another. The thickness of the first type connecting portions 29A in a radial direction of the stator core 9 is set to be smaller than the thickness of the second type connecting portions 29B in the radial direction of the stator core 9.
Inventors:
Toshihito Miyashita
Satoru Onodera
Kazuyuki Kitazawa
Masahiro Koyama
Kazuhiko Takizawa
Satoru Onodera
Kazuyuki Kitazawa
Masahiro Koyama
Kazuhiko Takizawa
Application Number:
JP2005088638A
Publication Date:
June 01, 2011
Filing Date:
March 25, 2005
Export Citation:
Assignee:
Sanyo Electric Co., Ltd.
International Classes:
H02K1/18
Domestic Patent References:
| JP6054468A | ||||
| JP2003264947A | ||||
| JP2005080474A | ||||
| JP2004304997A |
Attorney, Agent or Firm:
西浦 ▲嗣▼晴