Manufacturing method of stator coil composed of conductor...

Details Manufacturing method of stator coil composed of conductor... Manufacturing method of stator coil composed of conductor...

2008-03-18

2008-03-18

Phan, Thiem D. (Department: 3729)

Metal working

Method of mechanical manufacture

Electrical device making

C029S564100, C029S598000, C029S605000, C029S606000, C029S732000, C140S102500

Reexamination Certificate

active

10939386

ABSTRACT:
In manufacturing a stator coil for a rotary electric machine, a U-shaped segment is deformed at the turn portion thereof so that one of two straight portions thereof moves against the other one in a direction generally perpendicular to a borderline which connects two bordering points between the straight portions and the turn portion. The segment is twisted by moving the straight portions apart from each other. The segment is inserted into slots formed in a stator core so that the turn portion and end portions of the straight portions protrude from both axial end surfaces of the stator core. The end portions are folded in the circumferential direction of the stator core. The tips of the end portions are connected to tips of other segments.

REFERENCES:
patent: 6177747 (2001-01-01), Maeda et al.
patent: 6249956 (2001-06-01), Maeda et al.
patent: 6314780 (2001-11-01), Naka et al.
patent: 6441527 (2002-08-01), Taji et al.
patent: 6530140 (2003-03-01), Maeda et al.
patent: 2001/0013167 (2001-08-01), Maeda et al.
patent: A 2001-78404 (2001-07-01), None
patent: A 2001-231203 (2001-08-01), None

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