Rotor structure of alternating current generator for use in vehi

Details Rotor structure of alternating current generator for use in vehi Rotor structure of alternating current generator for use in vehi

1995-03-01

1996-11-12

Dougherty, Thomas M.

Electrical generator or motor structure

Dynamoelectric

Rotary

310263, 310 42, 310 43, H02K 104, H02K 1500, H02K 122, H02K 2100

Patent

active

055743242

ABSTRACT:
Plural thin plate projecting portions are integrally and projectingly provided on an outer peripheral portion of a side plate member of a bobbin. Each of the thin plate projecting portions comprises a circumferential rib, a slit portion and a reinforcement rib. The circumferential rib is provided on an outer peripheral face of the thin plate projecting portion of the bobbin and then a gap is formed between a claw-shaped magnetic pole of a rotor core and the thin plate projecting portion. A varnish material etc. is caused to adhere to and harden in this gap. By filling a root portion of the claw-shape magnetic pole of the rotor core with varnish material, the resonance vibration in the rotor core can be restrained. As a result, an alternating current generator for use in a vehicle having the small magnetic noise can be obtained.

REFERENCES:
patent: 1400440 (1921-12-01), Karp
patent: 2795715 (1957-06-01), Gilchrist
patent: 4114056 (1978-09-01), Nimura
patent: 4228377 (1980-10-01), Kreuzer
patent: 4307314 (1981-12-01), Yamada et al.
patent: 5122705 (1992-06-01), Kusase et al.
patent: 5254896 (1993-10-01), Bradfield et al.

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