发明名称 |
Brush, commutator, and commutator device |
摘要 |
In a commutator of a rotary electric machine, each of commutator segments has a low-resistive layer made of a low-resistive material and a high-resistive layer made of a high-resistive material having a specific resistance higher than that of the low-resistive material. The low-resistive material contains a carbonic material and a binder. The high-resistive material contains a carbonic material, a binder and an inorganic substance such as boron nitride. A mixing ratio of the inorganic material to the high-resistive material is more than 20 wt %. Alternatively, a brush, which makes contact with the commutator segments, can have the high-resistive layer and the low-resistive layer.
|
申请公布号 |
US7586230(B2) |
申请公布日期 |
2009.09.08 |
申请号 |
US20050289642 |
申请日期 |
2005.11.30 |
申请人 |
DENSO CORPORATION;TRIS, INC. |
发明人 |
HAMAMATSU HIROTAKE;MURAKAMI YOUICHI;HONBO RYOICHI;KIYOSE KENZO;IKEDA MITSUO;SAKAURA YOICHI;NAKAGAWA SHINYA;NISHIO MAKOTO |
分类号 |
H02K13/00 |
主分类号 |
H02K13/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|