Patent ID: 6281612
Filing Date: 2001-08-28
Classification: H02K,Y10T

Abstract:
A stator of an AC generator for use in a vehicle comprising:a cylindrical stator core in which a plurality of tooth portions are provided at equiangular intervals along the inner circumference of a cylindrical core back portion and a plurality of slot portions are each formed between adjacent tooth portions; anda stator coil incorporated in said stator core, said stator coil having a group of coils constituted by predetermined numbers of turns of conductor wires and including a plurality of rectilinear portions and coil end portions interconnecting the end portions of adjacent rectilinear portions, said rectilinear portions being sequentially accommodated in the slot portions of every predetermined number of slots and said coil end portions being protruded axially outwardly from the end surface of said stator core;wherein at least one of the group of conductor wires constituting said rectilinear portion, which are accommodated within said slot portion, is formed into a deformable polymorphic cross-section; andwherein the ratio of the overall cross-sectional area of the group of conductor wires constituting said rectilinear portion accommodated within said slot portion relative to the cross-sectional area of said slot portion is not less than 75%,wherein said group of conductor wires constituting said rectilinear portion which are accommodated within said slot portion comprises a group of conductor wires taking the form of a polymorphic cross-section,wherein said group of conductor wires constituting said rectilinear portion which are accommodated within said slot portion further comprises another group of conductor wires taking the form of a circular cross-section, so that said group of conductor wires taking the form of a polymorphic cross-section are embedded with said group of conductor wires taking the form of a circular cross-section.