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Patent Searching and Data


Title:
BRUSH DEVICE
Document Type and Number:
Japanese Patent JP2014103799
Kind Code:
A
Abstract:

To provide a brush device that suppresses arc scattering at a contact part between an electric connection part that rotates with a rotor of a rotary electric machine and a brush.

A brush device 101 includes: a brush 20a disposed so as to contact a slip ring 3 at a contact surface 20as; and a grid plate 32 composed of a magnetic material provided so as to surround at least part of a perimeter of a side face 20at adjacent to the contact surface 20as at the brush 20a. At the brush 20a, a current flows in a direction crossing a grid aperture 33 that is an area surrounding the side face 20at of the brush 20a at the grid plate 32.


Inventors:
Fujiwara, Hirofumi
Kubo, Hideto
Hayashi, Hiroto
Kamitsuji, Kiyoshi
Matsumoto, Shohei
Yumoto, Shuji
Yoshihara, Koji
Application Number:
JP2012000254938
Publication Date:
June 05, 2014
Filing Date:
November 21, 2012
Export Citation:
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Assignee:
TOYOTA INDUSTRIES CORP
International Classes:
H02K13/00; H01R39/18
Attorney, Agent or Firm:
曾我 道治
梶並 順
田口 雅啓
大井 一郎
光永 和宏