Patent ID: 11949306
Assignee: HARBINGER MOTORS INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B | IPC B  H

Claim 16:
17. A fractional-slot-winding motor having a primary axis, the fractional-slot-winding motor comprising:
a stator, comprising a coil-interconnection side, a bus-bar side, a plurality of stator slots, and a plurality of fluid-passage slots, wherein:
the plurality of stator slots extends through the stator parallel to the primary axis between the coil-interconnection side and the bus-bar side such that stator slots in the plurality of stator slots are circumferentially offset from each other,
the plurality of fluid-passage slots extending through the stator between the coil-interconnection side and the bus-bar side such that fluid-passage slots in the plurality of fluid-passage slots are circumferentially offset from each other, and
the plurality of fluid-passage slots is configured to provide a fluid flow between the coil-interconnection side and the bus-bar side;

a bus-bar assembly, comprising a first bus bar, a second bus bar, and a third bus bar, adjacent to the bus-bar side of the stator; and
a plurality of coil units, each extending through the stator, wherein:
each of the plurality of coil units is electrically coupled to at least one other of the plurality of coil units at the coil-interconnection side,
a first one of the plurality of coil units is electrically coupled to the first bus bar,
a second one of the plurality of coil units is electrically coupled to the second bus bar,
a third one of the plurality of coil units is electrically coupled to the third bus bar,
the plurality of coil units comprises dual-leg coil units and single-leg coil units,
the dual-leg coil units are only connected at the coil-interconnection side of the stator,
the single-leg coil units are connected at both the coil-interconnection side and the bus-bar side of the stator, and
an end of each of the single-leg coil units extending from the bus-bar side is radially offset further away from the primary axis than a portion of that one of the single-leg coil units protruding through the stator.