DEVICE FOR CARRYING END PARTS OF STATOR'S WINDING AT DYNAMO MACHINES

摘要

A coil support arrangement for use in connection with a dynamoelectric machine equipped with a stator having top (10) and bottom (12) 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 (24) encircling the bottom winding coil end portions (12), blocking means (28, 30, 32, 34, 36) providing lateral support for the coil end portions (10, 12) to restrain vibrational movement of the latter during machine operation and a series of bands (38, 40, 42, 44, 46, 48, 50, 52, 60) for holding the coil end portions (10, 12) of the phase group, the related blocking means (28, 30, 32, 34, 36) and the support ring (24) together, with the blocking means (28, 30, 32, 34, 36) disposed in axial alignment with the ring (24) to thereby present a single blocked and banded, elongated phase group structure (26) which extends circumferentially around the inside of the ring (24). The blocking means consists of a plurality of individual block elements (28, 30, 32) which extend the full radial depth of the phase group structure (26) to provide deep beam strength characteristics to the structure (26). The block elements (28, 30, 32, 34, 36) are generally trapezoidal in shape to facilitate wedging of the same between adjacent coil end portions (10, 12) during assembly.