Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1985-10-31
1986-12-30
Skudy, R.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 42, 310 61, 310 64, 310215, H02K 348
Patent
active
046331166
ABSTRACT:
In a dynamoelectric machine including a rotor of electrically conductive material having a plurality of axially extending slots for receiving electrical conductors, there is provided apparatus in each slot for electrically insulating the conductors from the rotor. The insulating apparatus comprises a substantially U-shaped insulating member of an aramid paper extending axially along the length of the slot. The base of the U-shaped insulating member is held in position by a sub-slot cover formed of an extruded plastic material which has an inner member covering an axially extending sub-slot located beneath each of the conductor slots of the rotor and an outer member which fits over the top of the base of the U-shaped insulation member and latches into the inner member. Both the outer and inner members of the sub-slot cover have molded apertures for allowing the passage of cooling air and the U-shaped insulation member has a corresponding aperture whereby the cooling air can be passed through the sub-slot and forced outward through the windings of the rotor. In one embodiment, the sub-slot covers are formed to be substantially less than the axial length of the rotor and a plurality of the covers may be utilized in an interlocked relationship to form a continuous cover extending the length of the axial direction of the rotor.
REFERENCES:
patent: 2783399 (1957-02-01), Fenemore
patent: 2787721 (1957-04-01), Tudge
patent: 3119033 (1964-01-01), Horsley
patent: 4251745 (1981-02-01), Germann
patent: 4321498 (1982-03-01), Vogt
patent: 4560896 (1985-12-01), Vogt
General Electric Company
Mitchell James W.
Skudy R.
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