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Patent Searching and Data


Title:
ROTATING ELECTRIC MACHINE FOR VEHICLE
Document Type and Number:
Japanese Patent JP2010063250
Kind Code:
A
Abstract:

To provide a rotating electric machine for vehicle which can control accumulation of abrasion powder of a brush in a brush holder by causing a flow of air in the brush holder.

An AC generator for vehicle 100 is provided with a rotor 4 which includes a rotating shaft 44 having a pair of slip rings 47 and 48 connected electrically with a field winding 41 and a cooling fan 46 fixed to the axial end face on the slip ring side, a brush device 6 having a pair of brushes 61 and 62 which slide on the slip rings 47 and 48, a brush holder 200 in which sections 211 and 212 for containing the pair of brushes 61 and 62 are formed, and a cover member 250 which covers the slip rings 47 and 48 along with the brush holder 200, a portion 71 to be detected which is arranged at one end of the rotating shaft 44, and a detection section 72 which detects the rotational position of the portion 71 to be detected. A cooling fan 73 is provided between the portion 71 to be detected and the slip rings 47 and 48.


More Like This:
JPH11220855MOTOR WITH BRUSH
Inventors:
MURAKAMI HARUMI
Application Number:
JP2008225391A
Publication Date:
March 18, 2010
Filing Date:
September 03, 2008
Export Citation:
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Assignee:
DENSO CORP
International Classes:
H02K13/00
Attorney, Agent or Firm:
Masahiko Amagai