Title:
電気モータ用ブラシ
Document Type and Number:
Japanese Patent JP6688071
Kind Code:
B2
Abstract:
A brush for an electric motor has a brush body having a front end surface configured to make sliding electrical contact with a commutator of the motor. First and second side surfaces are connected to the front end surface. The first side surface and the second side surface are positioned on opposite sides of the brush body in a rotational direction of the commutator. The front end surface has a first contact surface and a second contact surface that contact the commutator earlier than other regions of the front end surface, and are respectively positioned on diametrically opposed corners of the front end surface. In an initial state, the width of the contact area between the brush and the commutator is increased to extend the commutation time.
Inventors:
Fayun Chi
Shu Dan Chao
Chen Shun Do
Louis Feng Ching
Shu Dan Chao
Chen Shun Do
Louis Feng Ching
Application Number:
JP2015255684A
Publication Date:
April 28, 2020
Filing Date:
December 28, 2015
Export Citation:
Assignee:
Johnson Electric International Akchen Gesell Shaft
International Classes:
H02K13/00; H01R39/18
Domestic Patent References:
| JP2014171304A | ||||
| JP2009131120A | ||||
| JP2010213569A |
Attorney, Agent or Firm:
Takaki Nishijima
Disciple Maru Ken
Shinichiro Tanaka
Fumiaki Otsuka
Hiroyuki Suda
Hiroshi Uesugi
Naoki Kondo
Disciple Maru Ken
Shinichiro Tanaka
Fumiaki Otsuka
Hiroyuki Suda
Hiroshi Uesugi
Naoki Kondo