Field winding assembly for rotor in electric rotary machine

Details Field winding assembly for rotor in electric rotary machine Field winding assembly for rotor in electric rotary machine

1977-07-21

1979-07-31

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310214, H02K 336

Patent

active

041631668

ABSTRACT:
A field winding assembly for rotor in electric rotary machine which is to be mounted into a substantially rectangular open slot formed in the rotor and secured by a wedge disposed in the slot closer to its open side, wherein the field winding assembly comprises a conductor section to be mounted into the slot, and an insulator for insulating the conductor section from the slot walls and the wedge and composed of a lower U-shaped insulating member covering the sides of the conductor section adjacent to bottom and side walls of the slot and an upper U-shaped insulating member formed to cooperate with the lower U-shaped insulating member for completely surrounding the conductor section and to have a base side adjacent to the wedge when assembled in the slot. The upper U-shaped insulating portion which is flexible for lateral contraction and expansion of the upper insulating member whereby the stress imported to the upper U-shaped insulating member is absorbed by the flexible characteristic of that portion.

REFERENCES:
patent: 1564449 (1925-12-01), Sayre
patent: 1675419 (1928-07-01), Myers
patent: 2169097 (1939-08-01), Hall
patent: 2180983 (1939-11-01), Hall
patent: 2819514 (1958-01-01), Polard
patent: 3235762 (1966-02-01), Brammerlo
patent: 3735169 (1973-05-01), Balke

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