Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1987-08-24
1989-01-24
Skudy, R.
Electrical generator or motor structure
Dynamoelectric
Rotary
310271, H02K 346
Patent
active
048003140
ABSTRACT:
A coil support arrangement for use in connection with a dynamoelectric machine equipped with a stator having top and bottom winding coil end portions arranged in phase groups and extending outwardly from the stator at each end thereof. The support arrangement consists of a support ring encircling the bottom winding coil end portions, blocking means providing lateral support for the coil end portions to restrain vibrational movement of the latter during machine operation and a series of bands for holding the coil end portions of the phase group, the related blocking means and the support ring together, with the blocking means disposed in axial alignment with the ring to thereby present a single blocked and banded, elongated phase group structure which extends circumferentially around the inside of the ring. The blocking means consists of a plurality of individual block elements which extend the full radial depth of the phase group structure to provide deep beam strength characteristics to the structure. The block elements are generally trapezoidal in shape to facilitate wedging of the same between adjacent coil end portions during assembly. A wedging mechanism is provided between adjacent phase group structures for applying circumferentially directed tightening forces to the overall arrangement.
REFERENCES:
patent: 3344296 (1967-09-01), Coggeshall
patent: 3949256 (1976-04-01), Cooper
patent: 3949257 (1976-04-01), Cooper
patent: 4315173 (1982-02-01), Calfo
patent: 4379243 (1983-04-01), Dailey
patent: 4488079 (1984-12-01), Dailey
patent: 4563607 (1986-01-01), Cooper et al.
Butler John M.
Ward Robert T.
Abeles D. C.
Skudy R.
Westinghouse Electric Corp.
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