Title:
回転駆動装置
Document Type and Number:
Japanese Patent JP5759731
Kind Code:
B2
Abstract:
A motor may include a motor housing; a rotor which is provided with a rotation shaft rotatably held with respect to the motor housing, a magnet held by the rotation shaft, and a back yoke facing the magnet on one side in a motor axial line direction; a stator board which is provided with a stator coil facing the magnet on an other side in the motor axial line direction; an auxiliary yoke mounting member which is provided with a tube part to which the rotation shaft fitted and fixed; and an auxiliary yoke which is provided in a portion of the auxiliary yoke mounting member whose diameter is enlarged from the tube part and which faces the stator board on the other side in the motor axial line direction.
Inventors:
Yutaka Saito
Application Number:
JP2011011212A
Publication Date:
August 05, 2015
Filing Date:
January 21, 2011
Export Citation:
Assignee:
Nidec Sankyo Co., Ltd.
International Classes:
H02K21/24; G03B9/10; H02K1/27; H02K3/04; H02K5/04; H02K7/116
Domestic Patent References:
| JP64016180U | ||||
| JP2004088997A | ||||
| JP59195974U | ||||
| JP2002325413A | ||||
| JP63176366U | ||||
| JP2010028484A |
Foreign References:
| US4839551 | ||||
| US20100013982 |
Attorney, Agent or Firm:
Shiro Yokozawa
Shin Kodaira
Toru Kawai
Kawaguchi Nobuko
Shin Kodaira
Toru Kawai
Kawaguchi Nobuko