Method of manufacturing a stator for an alternator with reduced conductor portions
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsAtsushi Oohashi, Yoshihito Asao, Katsumi Adachi, Takushi Takizawa
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Abstract
Coil members are obtained by forming width-reduced portions in a wire material over a predetermined longitudinal range generally centered on cutting positions, then removing an insulation coating from the width-reduced portions, and thereafter cutting the wire material at the width-reduced portions. Coil segments are prepared by bending the coil members into a general U shape. Then the coil segments are inserted into the slots in a stator core, and a stator is obtained by welding together the free end portions of the projecting coil segments.
Claims16
A method for manufacturing a stator for an alternator, comprising:
- providing a conductor comprising a flat electrically conductive material and an insulation coating, the insulation coating covering an outer surface of the electrically conductive material;
- forming one or more reduced outer portions of the conductor by removing, from respective predetermined longitudinal sections of the conductor, the insulation coating and a corresponding portion of the electrically conductive material;
- forming coil members by cutting the conductor at cutting positions located within the predetermined longitudinal sections;
- forming coil wires of a predetermined shape by subjecting said coil members to a bending process;
- installing a predetermined number of said coil wires in a stator core;
- and
- forming a winding group having a predetermined number of turns by welding together end portions of each of said coil wires installed in said stator core.
Dependencies are inferred from the claim text.