Arrangement for supporting stator end windings of an electric ma

Details Arrangement for supporting stator end windings of an electric ma Arrangement for supporting stator end windings of an electric ma

1978-11-27

1980-12-09

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 51, H02K 346

Patent

active

042383390

ABSTRACT:
The disclosed arrangement for supporting stator end windings of an electric machine comprises a rigid inner ring and an outer ring, said rings being made of electrically insulating material. The inner ring is mounted coaxially with the inner bore of the stator core and supports the end portions of a stator bar winding, and the outer ring externally embraces these end portions. Both rings are mounted and secured together along the head portions of the end windings. The inner ring is attached to Z-shaped members arranged adjacent to the end portions and preventing the inner ring from axial displacement relative to the end portions. This is achieved due to the fact that a projection of each Z-shaped member, facing the end surface of the core, is positioned between winding bars at their outlet from core slots, said projection being rigidly connected with one of the brackets movably associated with a clamping plate of the core and attached to the outer ring. Thus, the proposed arrangement for supporting end windings, combined with the end windings supported thereby, makes up a rigid integral unit resistive to the action of vibrations arising during operation of an electric machine.

REFERENCES:
patent: 3089048 (1963-05-01), Bahn
patent: 3344296 (1967-09-01), Coggeshall
patent: 3344297 (1967-09-01), Bishop
patent: 3691416 (1972-09-01), Drexler
patent: 4088913 (1978-05-01), Prigorovsky
patent: 4126799 (1978-11-01), Iogansen

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