Title:
戻り速度切り換え可能なアクチュエータ
Document Type and Number:
Japanese Patent JP6531151
Kind Code:
B2
Abstract:
An actuator with switchable releasing speed includes an actuation rod, a screw, and a motor. The motor drives the screw rotating so that the actuation rod axially moves relative to the screw. The motor includes a stator, a rotor, a plurality of commutators, and at least three brushes. The at least three brushes have a positive brush, a negative brush, and at least one auxiliary brush. The positive brush is connected to a positive DC voltage. One of the negative brush and the least one auxiliary brush is adjusted to connect to a negative DC voltage so as to change a rotational speed of the rotor, thereby controlling a movement speed of the actuation rod. Accordingly, the releasing speed of the actuator is switchable.
Inventors:
Kure Zhou Kin
Application Number:
JP2017211914A
Publication Date:
June 12, 2019
Filing Date:
November 01, 2017
Export Citation:
Assignee:
Daiichi Denshi Technology Co., Ltd.
International Classes:
H02K23/00; H02K13/00; H02K23/04
Domestic Patent References:
| JP2004100931A | ||||
| JP2012132464A | ||||
| JP2016210236A | ||||
| JP2015509036A | ||||
| JP2014150724A | ||||
| JP2012200148A |
Foreign References:
| WO2014157242A1 |
Attorney, Agent or Firm:
Ebisu International Patent Office