Title:
ブラシレスモータ
Document Type and Number:
Japanese Patent JP5123009
Kind Code:
B2
Abstract:
In a brushless motor including a rotor having 2n magnetic poles and a stator having 3n slots, the magnetic poles of the rotor are composed of segment magnets arranged in three columns extending in an axial direction. The magnets of each column are displaced from the magnet of either adjacent column in a circumferential direction, forming a 3-stage step-skew structure. The segment magnets have a skew angle θskew ranging from 36° to 57° in terms of electrical angle.
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Inventors:
Masamichi Okubo
Application Number:
JP2008054774A
Publication Date:
January 16, 2013
Filing Date:
March 05, 2008
Export Citation:
Assignee:
Mitsuba Co., Ltd.
International Classes:
H02K1/27
Domestic Patent References:
| JP2003284276A | ||||
| JP2004159492A | ||||
| JP8126279A | ||||
| JP2004248422A | ||||
| JP2552824B2 | ||||
| JP2005020930A | ||||
| JP2000308286A |
Attorney, Agent or Firm:
Ning Takano