Electric machine rotor pole piece with anti coil rotation
AssigneeRemy International, Inc.
InventorMichael T. York
Life of this patent
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Abstract
The apparatus disclosed herein relates to a pole piece for an electric machine comprising, a pole piece with a finger support structure, a plurality of fingers having an axial component of extension relative to the finger support structure, a coil contact surface and at least one of a protrusion or a depression having an axial component of extension relative to the coil contact surface. Further disclosed is a method that relates to assembling a coil to pole pieces comprising, axially compressing a coil between coil contact surfaces of a pair of opposing pole pieces and deforming the coil axially and without radial deformation with at least one of protrusions and depressions in the coil contact surfaces of the pole pieces thereby rotationally fixing the coil to the pole pieces.
Claims16
A pole piece for an electric machine, comprising:
- a pole piece with a finger support structure;
- a plurality of fingers having an axial component of extension relative to the finger support structure;
- a coil contact surface of the finger support structure radially inward of the plurality of fingers;
- and
- at least one protrusion having an axial component of extension relative to the coil contact surface.
A pole piece for an electric machine, comprising:
- a pole piece with a finger support structure;
- a plurality of fingers having an axial component of extension relative to the finger support structure;
- a coil contact surface of the finger support structure radially inward of the plurality of fingers;
- and
- at least one depression having an axial component of extension relative to the coil contact surface and the depression being contoured to maintain substantial contact with the surface of a coil to be employed therewith.
Dependencies are inferred from the claim text.