Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1987-02-26
1987-11-24
Skudy, R.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 42, 310 61, 310 64, 310215, H02K 348
Patent
active
047091819
ABSTRACT:
In a dynamoelectric machine, electrical windings are held within the dynamoelectric machine rotor in axially extending slots which further include coextensive subslots for ventilation purposes. Slot insulation or slot armor is used to electrically insulate the windings from the dynamoelectric machine rotor. The slot insulation is retained in the slot by a plurality of subslot covers each of which includes a radially inner member, a radially outer member and further may include an end member. The inner members are formed at each end with a pinetree dovetail and include ventilation slots whereas the outer members are formed with ventilation half slots and depending tines. In assembly, the inner and outer members are staggered with respect to one another so that the outer member tines engage two different inner members to further strengthen the joint. The outer members included rabbeted ends so as to form overlapping joints with adjacent members to reduce electrical leakage paths.
REFERENCES:
patent: 2787721 (1961-04-01), Tudge
patent: 3119033 (1964-01-01), Horsley et al.
patent: 4251745 (1981-02-01), Germann
patent: 4321498 (1982-03-01), Vogt
patent: 4560896 (1985-12-01), Vogt et al.
patent: 4633116 (1986-12-01), Derderian
General Electric Company
Skudy R.
Squillaro Jerome C.
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