Title:
A rotor and a motor
Document Type and Number:
Japanese Patent JP5996967
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a rotor that contributes to a higher-output motor while preventing an increase in component count, and to provide a motor having the rotor.SOLUTION: A rotor 11 includes a first and a second rotor cores 21 and 22, an annular magnet, and a first and a second auxiliary magnets 26 and 27. On respective outer edges of a first and a second core bases 21a and 22a thereof, the first and the second rotor cores 21 and 22 respectively have a plurality of first and second claw-like magnetic poles 21b and 22b that are formed so as to protrude radially outward and extend axially. The annular magnet is arranged axially between the first and the second core bases 21a and 22a, and allow the first and the second claw-like magnetic poles 21b and 22b to function as first and second magnetic poles, respectively. The first and the second auxiliary magnets 26 and 27 are formed by molding first and second interpole magnets 26a, 27a, 26b, and 27b integrally with a first and a second axial cover magnets 26c and 27c, respectively. The first and second interpole magnets 26a, 27a, 26b, and 27b are arranged circumferentially between the first and the second claw-like magnetic poles 21b and 22b. The first and the second axial cover magnets 26c and 27c are provided so as to cover outer axial surfaces of the first and the second core bases 21a and 22a, respectively.
Inventors:
Yoji Yamada
Chie Morita
Nobuko Tateishi
Chie Morita
Nobuko Tateishi
Application Number:
JP2012181638A
Publication Date:
September 21, 2016
Filing Date:
August 20, 2012
Export Citation:
Assignee:
ASMO Co., Ltd.
International Classes:
H02K1/27; H02K1/22; H02K1/24
Domestic Patent References:
| JP5043749U | ||||
| JP4251553A | ||||
| JP2008236844A | ||||
| JP6178474A | ||||
| JP54116610A | ||||
| JP11275831A |
Attorney, Agent or Firm:
Hironobu Onda
Makoto Onda
Makoto Onda