Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1978-04-28
1980-09-02
Skudy, R.
Electrical generator or motor structure
Dynamoelectric
Rotary
310194, H02K 300
Patent
active
042208815
ABSTRACT:
The present invention discloses a stator assembly for a dual three phase inverter-driven motor. The stator assembly includes: a radially disposed matrix of phase belts each having several pole groups, such phase belts being disposed at fixed radii from the axis of the rotor of the motor, each of the pole groups therein comprising twelve stator slots; a first plurality of three phase motor windings, each of such windings having a span length of either stator slots within its respective pole group, each pole group winding of said first plurality of motor windings having two coils per pole group, the first of such coils of each pole group being wound upon the i and i+8 stator slots, and the second coil of each pole group being wound upon the i+1 and i+9 stator slots; and a second plurality of three phase motor windings, each of such windings having a span length of eight stator slots, each pole group winding of said second plurality of motor windings having two coils per pole group, the first coil of each pole group being would upon the i+2 and i+10 stator slots, and the second coil of each pole group being wound upon the i+3 and i+11 stator slots, said two pluralities of motor windings thereby being symmetrically disposed about opposite ends of each phase belt pole group so as to leave the central four slots of each phase belt pole group free of any windings.
REFERENCES:
patent: 2630541 (1953-03-01), McElligott
patent: 3152273 (1964-10-01), Harrington
patent: 3348109 (1967-10-01), Wright
patent: 3430126 (1969-02-01), Richardson
patent: 3476964 (1969-11-01), Willyoung
patent: 3515922 (1970-06-01), Fong
patent: 3601642 (1971-08-01), Willyoung
patent: 3611085 (1971-10-01), Rosenberry
patent: 3652880 (1972-03-01), Harrington
patent: 3660705 (1972-05-01), Willyoung
patent: 3728567 (1973-04-01), Picmaus
Fleming Joseph W.
Hamilton David C.
Gandhi Mahendra A.
Ramsey Controls, Inc.
Silverman Mel K.
Skudy R.
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