Title:
STEPPING MOTOR AND MOTOR-OPERATED VALVE USING THE SAME
Document Type and Number:
Japanese Patent JP2017123775
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a stepping motor and a motor-operated valve using the same, capable of precisely and completely performing stopping of a rotor against a stopper, that is, origin positioning of the rotor, with a simple configuration.SOLUTION: A stepping motor comprises: a stator 55; a rotor 57 which is rotatingly driven by the stator 55; and a detection rotor 47 for detecting a rotational position of the rotor 57. The detection rotor 47 is rotatably disposed on a coaxial core L to the rotor 57, and is rotatingly driven by the rotor 57 through a rotation driving mechanism between the rotor 57 and the detection rotor 47. The rotation driving mechanism has a drive gap of a predetermined length or angle in a rotational direction.SELECTED DRAWING: Figure 2
Inventors:
SHIMURA TOMONORI
OUCHI TOMOARI
OUCHI TOMOARI
Application Number:
JP2017034866A
Publication Date:
July 13, 2017
Filing Date:
February 27, 2017
Export Citation:
Assignee:
FUJI KOKI KK
International Classes:
H02K37/04; F16K31/04; H02K7/14; H02K11/215
Domestic Patent References:
| JPH0198777A | 1989-04-17 | |||
| JP2003329698A | 2003-11-19 |
Foreign References:
| US4463930A | 1984-08-07 |
Attorney, Agent or Firm:
Yusuke Hiraki
Toshiaki Watanabe
Ishikawa Takiharu
Naoki Takemura
Toshiaki Watanabe
Ishikawa Takiharu
Naoki Takemura