Alternator

Details Alternator Alternator

1996-02-06

1998-01-20

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 62, 310 68D, H02K 132, H02K 900, H02K 1100

Patent

active

057104670

ABSTRACT:
Cooling wind is introduced into an electric-parts-chamber through openings formed at the bottom of a cover, then taken into the intake side of a cooling fan through the air intakes formed in the wall end of a housing from the electric-parts-chamber. The cooling wind is accelerated by the fan to be driven off from the outlets formed in the peripheral wall of the housing. The cylindrical portion of the positive side cooling fins of the rectifier is extended to the space between the outer periphery of the fan and the outlets. The inner diameter of the cylindrical portion is longer than that of the rear coil end. Thus, the coil end and the cylindrical portion of the positive side cooling fin are cooled sufficiently by the cooling wind blowing thereon at high speed, so that the rectifier can endure large thermal load with reduced wind noise even if the size of the alternator is small.

REFERENCES:
patent: 3198972 (1965-08-01), Larson
patent: 4418295 (1983-11-01), Shiga
patent: 4419597 (1983-12-01), Shiga et al.
patent: 4794285 (1988-12-01), Nimura et al.

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