Patent ID: 6026558
Filing Date: 2000-02-22
Classification: H02K,Y10T

Abstract:
A method of manufacturing an armature for rotary electric machine having an armature core having a plurality of slots on an outer periphery thereof and a rotary shaft supporting the armature core, the method comprising the steps of:assembling a plurality of inner coil elements in the slots of the armature core, each inner coil element having a straight inner trunk part, an inner end part bent substantially perpendicularly from an end of the inner trunk part along an axial side of the armature core and inclined with respect to the inner trunk part, and an inner end protrusion extending from an end of the inner end part in an axial direction away from the armature core;assembling a plurality of outer coil elements on the inner coil elements, each outer coil element having a straight outer trunk part, an outer end part bent substantially perpendicularly from an end of the outer trunk part along the axial side of the armature core and inclined with respect to the outer trunk part, and an outer end protrusion extending from an end of the outer end part in the axial direction away from the armature core; andarc welding the outer end protrusion and the inner end protrusion to one another under a condition that the outer end protrusion and the inner protrusion are spaced apart from each other in a radial direction of the armature core at axial ends of the end protrusions, and are in contact with each other at a position axially inside of the axial ends of the end protrusions.