Vehicular alternating current dynamo

Details Vehicular alternating current dynamo Vehicular alternating current dynamo

1993-06-23

1994-09-06

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 42, 310 62, 310 68D, 310 89, 310232, H02K 1300

Patent

active

053451325

ABSTRACT:
An object of the invention is to, in a vehicular alternating current (AC) dynamo, reduce an influence of vibration on a brush during operation, thereby preventing the brush from wobbling, cracking or causing other damages, also to make the brush sufficiently exposed to cooling air during operation, thereby preventing the brush temperature from rising excessively. In the vehicular AC dynamo, by virtue of a pressing force produced upon a tubular cover integral with a fan guide being fixed to a rear bracket through a seal member, an abutting end surface of a projection of the tubular cover is axially abutted with an inner abutting surface of a recess of the brush holder for pressing and fixing said brush holder against and to the rear bracket. In addition, the side of the fan guide and the side of the brush holder are arranged to be flush with each other, and a labyrinth seal structure is constituted by a circumferential groove of an end flange and a cylindrical projection which is formed by both the tubular cover and the brush holder.

REFERENCES:
patent: 3731126 (1973-05-01), Hagenlocher et al.
patent: 4387314 (1983-06-01), Iwaki et al.
patent: 4499390 (1985-02-01), Iwaki et al.
patent: 4546280 (1985-10-01), Pfluger
patent: 4705983 (1987-11-01), Franz et al.
patent: 4959576 (1990-09-01), Horibe et al.

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