Patent ID: 7827672
Filing Date: 2010-11-09
Classification: H02K,Y10T

Abstract:
1. A method of manufacture for a stator for an automotive alternator comprising: manufacturing a parallelepiped laminated body having a plurality of slots by laminating a plurality of comb-shaped strips each having a band portion and a plurality of substantially rectangular teeth disposed substantially parallel to each other and extending perpendicularly relative to a longitudinal direction of said band portion, each tooth including an end portion having a slit, which is formed in a radial center of said end portion and is perpendicular to the longitudinal direction of said band portion; inserting into said slots from a side of openings of said slots a stator coil being a cluster of three phases of connected stator windings comprising: subsequent to the inserting, spreading said end portion of each of said teeth, from a corresponding slit, in a longitudinal direction of said laminated body, thereby newly forming pairs of projection portions from the end portions which are spread apart, the projection portions of each pair extending away from one another in the longitudinal direction of said laminated body; and bending said laminated body to form a cylindrical shape.