Title:
給電ブラシ付電動機
Document Type and Number:
Japanese Patent JP4166387
Kind Code:
B2
Abstract:
In a commutator (14, 24) of an armature (11) of an electric motor, a plurality of segments (15, 26) are arranged on the outer peripheral surface of a commutator ring (14a) at equal angular intervals. The segments (15, 26) which are in the same phase and oppose with 180° angular interval are connected through a conductive plate (16). Each conductive plate (16) is spaced apart a predetermined distance from adjacent ones in the axial direction not to short, and molded within the commutator ring (14a). Each of brushes (17a - 17d) is shaped to have a width which is sufficient to bridge over three segments (15, 26). Alternatively, the commutator ring may be shaped to have a tapering protrusion part (25c) and the same-phase segments (26) may be directly connected by a shorting wire (27) along the tapering protrusion part (25c).
Inventors:
Takahiro Yamada
Toshiyasu Ishizuka
Masui Takashi
Akihiro Suzuki
Kazushi Sugishima
Toshiyasu Ishizuka
Masui Takashi
Akihiro Suzuki
Kazushi Sugishima
Application Number:
JP28307899A
Publication Date:
October 15, 2008
Filing Date:
October 04, 1999
Export Citation:
Assignee:
ASMO Co., Ltd.
International Classes:
H02K13/00; H01R39/04; H02K23/00; H02K23/38; H01R39/32
Domestic Patent References:
| JP57168979U | ||||
| JP11187623A | ||||
| JP6070512A | ||||
| JP52053202A | ||||
| JP63167369U | ||||
| JP4058743A | ||||
| JP8065966A | ||||
| JP3011963A |
Attorney, Agent or Firm:
Hironobu Onda
Makoto Onda
Makoto Onda