HAIRPIN JOINT
First Claim
1. A method of forming a stator winding, comprising:
- providing a stator core having a plurality of longitudinally extending slots formed about a circumference thereof;
providing a plurality of hairpin conductors each having a substantially rectangular cross-section and each having an apex portion and a pair of legs that terminate at respective ends;
cutting a bevel at each leg end;
inserting the hairpin legs into respective ones of the slots so that the leg ends extend from an axial end of the stator core;
bending the hairpin legs to form a plurality of adjacent pairs of leg ends with beveled cuts facing one another;
compressing the beveled cuts of each pair together; and
resistance welding the pairs to form a plurality of welded joints.
2 Assignments
0 Petitions
Accused Products
Abstract
A method of forming a stator winding includes providing a stator core having a plurality of longitudinally extending slots formed about a circumference thereof, providing a plurality of hairpin conductors each having a substantially rectangular cross-section and each having an apex portion and a pair of legs that terminate at respective ends, cutting a bevel at each leg end, inserting the hairpin legs into respective ones of the slots so that the leg ends extend from an axial end of the stator core, bending the hairpin legs to form a plurality of adjacent pairs of leg ends with beveled cuts facing one another, compressing the beveled cuts of each pair together, and resistance welding the pairs to form a plurality of welded joints.
27 Citations
20 Claims
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1. A method of forming a stator winding, comprising:
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providing a stator core having a plurality of longitudinally extending slots formed about a circumference thereof; providing a plurality of hairpin conductors each having a substantially rectangular cross-section and each having an apex portion and a pair of legs that terminate at respective ends; cutting a bevel at each leg end; inserting the hairpin legs into respective ones of the slots so that the leg ends extend from an axial end of the stator core; bending the hairpin legs to form a plurality of adjacent pairs of leg ends with beveled cuts facing one another; compressing the beveled cuts of each pair together; and resistance welding the pairs to form a plurality of welded joints. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification