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US 6,484,388 B1Granted
Sequential roll-forming process for a stator
AssigneeDelphi Technologies, Inc.
InventorsDale Alan Amlee, Stephen Alan Alford
Life of this patent
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Abstract
A process to perform a flaring operation on a rotating electrical device (stator) designed with a number of these spaced axially oriented splines around its perimeter. The design of the stator requires that these perimeter splines possess a flared outer end, creating a rounded cavity contour between adjacent splines to effectively retaining the stator winding in place. The method of this invention reduces damage to the stator windings and allows more wire fill during the manufacturing process.
Claims7
A method forming a stator suitable for a rotating electric device including the steps of:
- providing a preliminary stator component comprising a stator main body and a plurality of splines radially projecting from an inner or outer circumferential surface of said stator main body;
- applying at least one wire winding in a slot defined between two adjacent splines;
- roll forming a terminal end of at least said two adjacent splines to effect a deformation process upon said terminal end to thereby create a flared-out portion at said terminal end;
- indexing said stator component rotationally to present successive splines to said deformation process.
1 more element
Dependencies are inferred from the claim text.