Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1978-05-18
1980-08-12
Skudy, R.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 42, 310194, 310271, H02K 346
Patent
active
042175143
ABSTRACT:
A stator structure for the induction motor is disclosed, in which the winding accommodated in the slots of the stator iron core has one end portion, outside of the stator iron core, shaped to provide a flared bell-like opening, and the other end portion thereof, outside of the stator iron core, forming short-passed winding and being provided with an opening sufficiently large to permit insertion of the shaft of the rotor. Between the inner surface of the short-passed end portion and a given portion of the surface of the stator iron core a coil-supporting member is disposed. The outer surface of the coil-supporting member has a shape along the inner surface of the other coil end portion, while the inside thereof is so shaped as to provide a sufficient space or air gap with respect to the rotor to be inserted. The coil-supporting member is made of an elastic material and adapted to be forcibly fitted between the inner surface of the short-passed coil end portion and the given portion of the surface of the stator iron core from the opening of the bell-shaped coil end portion through the rotor-accommodating cavity formed in the stator core, thus closely contacting the inner surface of the short-passed end portion. Means is provided for bringing at least part of the coil-supporting member into close contact with the short-passed coil end portion and rendering them immovable with respect to each other.
REFERENCES:
patent: 2575115 (1951-11-01), Linke
patent: 3979822 (1976-09-01), Halm
patent: 4053800 (1977-10-01), Hanning
patent: 4088913 (1978-05-01), Prigorovsky
Doi Ryota
Fukazawa Ikou
Kumagai Yuji
Simazaki Yuzuru
Yamaguchi Motoo
Hitachi , Ltd.
Skudy R.
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