Method and apparatus for welding a plurality of windings of rotary electric machine
AssigneeDenso Corporation
InventorsKazutaka Maeda, Mitsuru Kato, Mitsuaki Taira, Kimihiro Kuno, Mamoru Urushizaki
Life of this patent
Estimating the term…
Abstract
A method of welding a plurality of connection ends of a plurality of copper segments forming a circumferentially disposed stator winding of a rotary electric machine. The method includes a step of inserting a protection member between connection ends of adjacent two of the plurality of copper segments, a step of activating a welder tool, and a step of circumferentially moving the welder tool relative to the connection ends.
Claims21
A method of welding a plurality of pairs of connection ends of a plurality of segments of a circumferentially disposed stator winding of a rotary electric machine, said method comprising:
- a step of inserting a protection member having substantially flat circumferential side surfaces between said pairs so that said side surfaces can be in contact with said pairs;
- a step of activating a welder tool;
- and
- a step of circumferentially moving said welder tool relative to said pairs.
An apparatus of welding a plurality of pairs of connection ends of segments of a circumferentially disposed stator winding of a rotary electric machine, said apparatus comprising:
- a welder tool movable relative to said pairs;
- a power source for activating said welder tool;
- moving means for moving said welder tool relative to pairs;
- and
- protecting members having substantially flat circumferential side surfaces inserted into each space between adjacent two of said plurality of pairs so that said circumferential side surfaces can be in contact with said pairs.
A method for manufacturing a winding coil of a rotary electric machine, said method comprising:
- a step for disposing a plurality of segments having connection ends on a core;
- a step for positioning a plurality of pairs of said connection ends to be welded by a welder tool;
- a step for targeting said welder tool on one of said pairs of said connection ends and for changing said target to an adjacent another one of said pairs;
- and
- a step for activating said welder tool when said welder tool is targeting at least one of said pairs and said another one of said pairs.
A method of welding a plurality of pairs of connection ends of a plurality of segments of a circumferentially disposed stator winding of a rotary electric machine, said method comprising:
- a step of inserting a protection member having substantially flat circumferential side surfaces between said pairs so that said side surfaces can be in contact with said pairs;
- a step of activating a welder tool;
- and
- a step of circumferentially moving said welder tool relative to said pairs, wherein said pairs extend from a top portion of the projection member and toward said welding tool during the step of activating.
Dependencies are inferred from the claim text.