Alternator

摘要

A stator for an alternator includes a stator winding including a number of winding sub-portions which are constituted by at least one winding assembly composed of a pair of first and second winding groups, the first winding group including a number of first winding sub-portions each having one turn constructed by winding one of the strands of wire so as to alternately occupy an inner layer and an outer layer in a slot depth direction within the slots at intervals of the predetermined number of slots, and the second winding group including a number of second winding sub-portions each having one turn constructed by winding one of the strands of wire so as to alternately occupy an inner layer and an outer layer in a slot depth direction within the slots at intervals of the predetermined number of slots and so as to be inversely wound and offset by an electrical angle of 180 DEG relative to the first winding sub-portions, wherein the stator winding is constituted by a three-phase alternating-current winding occupying n slots per phase per pole in which there is a phase difference corresponding to an electrical angle of 120 DEG between each phase, and wherein the first winding sub-portions and the second winding sub-portions which constitute the same phase within the winding assembly are connected by same-address crossover connections at the same address in each phase, the same-address crossover connections of each phase being disposed at a slot pitch of 4n or more.