Title:
The DC motor with a brush provided with the permanent magnet rotor
Document Type and Number:
Japanese Patent JP6125228
Kind Code:
B2
Abstract:
A direct current motor has a wound stator, a permanent magnet rotor having a commutator assembly, and brush gear. The brush gear has a first pole brush, a second pole brush and a plurality of commutating brushes. The commutator assembly has a cylindrical insulating base, and first and second members fixed to the base. The first member includes a radially extending first slip ring and a number of axially extending first bars. The second member includes a radially extending second slip ring and a number of axially extending second bars. The first and second pole brushes make continuous sliding contact with the first and second slip rings respectively. The first and second bars are fixed to the outer cylindrical surface of the base and form a cylindrical surface against which the commutating brushes make sliding contact.
Inventors:
Yuri
Chui you butterfly
Jinping Tao
Hong Jiang Chang
Chui you butterfly
Jinping Tao
Hong Jiang Chang
Application Number:
JP2012289301A
Publication Date:
May 10, 2017
Filing Date:
December 12, 2012
Export Citation:
Assignee:
Johnson Electric Society Anonymous
International Classes:
H02K23/00; H02K13/00
Domestic Patent References:
| JP2001238423A | ||||
| JP2002119096A |
Foreign References:
| WO2001005018A1 | ||||
| WO2006025444A1 | ||||
| WO2007122767A1 | ||||
| US20050046303 |
Attorney, Agent or Firm:
Koichi Tsujii
Sadao Kumakura
Fumiaki Otsuka
Takaki Nishijima
Hiroyuki Suda
Hiroshi Uesugi
Sadao Kumakura
Fumiaki Otsuka
Takaki Nishijima
Hiroyuki Suda
Hiroshi Uesugi