Ramsey Controls, Inc.

David C Hamilton

Joseph W Fleming

Robert L Boyd

Raymond Wegmann

Wilmer E Wood

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.

Dual, three phase, inverter-driven motor

The present invention constitutes an electrical mounting and conduction means having a support element having a generally U-shaped interior surface, the base of the exterior of the support element being in thermal contact with a heat dissipating surface; a carrier element having a generally U-shaped exteriorsurface, the surface having a cross-section of smaller dimension than that of the U-shaped surface of the support element, the carrier element being nestable within the support element; and locking means removably securable to adjacent arm members of each of the support and carrier elements for maintaining the support and carrier elements in selective securement to each other.

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Ridgewood, NJ, United States of America

David C Hamilton