On-vehicle alternator with brush/slip ring structure

Details On-vehicle alternator with brush/slip ring structure On-vehicle alternator with brush/slip ring structure

2006-06-01

2008-08-26

Schuberg, Darren (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S088000, C310S089000

Reexamination Certificate

active

07417353

ABSTRACT:
An alternator (AC generator) to be mounted on a vehicle comprises slip rings, brushes, a brush holder, a rear cover, and sealing members. The slip rings are fixed on a rotary shaft and rotatable together with the rotary shaft. The brushes are slidable on the slip rings and the brush holder accommodates the brushes therein. The slip-ring cover covers the slip rings as well as the brush holder and the rear cover covers electronic components including the brushes. The sealing members give a sealing performance to an inner space containing slid portions of the brushes on the slip rings. The rear cover, the brush holder, and the sealing member have a ventilating passage for positively causing an flow of air from the inner space containing the slid portions of the brushes on the slip rings to an outside of the alternator.

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