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US 2010/0244612 A1Published application
Ac motor winding pattern
AssigneeTesla Motors, Inc.
InventorYifan Tang
Life of this patent
Estimating the term…
Abstract
A motor winding arrangement that is capable of delivering relatively flat torque over a wide range of speeds, thus achieving increasing power throughout its operating range, is provided. In a multi-phase, e.g., three-phase, motor utilizing the winding arrangement of the invention, each winding layer corresponds to one phase of the motor and occupies every slot of the stator. The poles for each winding layer are comprised of concentric and non-overlapping coils.
Claims12
An electric motor, comprising:
- a stator with a plurality of slots;
- and
- a plurality of overlapping windings, wherein each of said plurality of overlapping windings corresponds to a phase of said electric motor, wherein each of said plurality of overlapping windings occupies every slot of said plurality of slots, wherein each of said plurality of overlapping windings is comprised of a plurality of poles, and wherein each pole of said plurality of poles is comprised of a plurality of concentric and non-overlapping coils.
A three-phase electric motor, comprising:
- a stator with a plurality of slots;
- a first winding corresponding to a first phase of said three-phase electric motor, wherein said first winding occupies every slot of said plurality of slots, wherein said first winding comprises a first plurality of poles, and wherein each pole of said first plurality of poles is comprised of a plurality of concentric and non-overlapping coils;
- a second winding corresponding to a second phase of said three-phase electric motor, wherein said second winding occupies every slot of said plurality of slots, wherein said second winding comprises a second plurality of poles, and wherein each pole of said second plurality of poles is comprised of a plurality of concentric and non-overlapping coils;
- and
- a third winding corresponding to a third phase of said three-phase electric motor, wherein said third winding occupies every slot of said plurality of slots, wherein said third winding comprises a third plurality of poles, and wherein each pole of said third plurality of poles is comprised of a plurality of concentric and non-overlapping coils.
2 more elements
Dependencies are inferred from the claim text.