Patent ID: 7847465
Filing Date: 2010-12-07
Classification: H02K,Y10T

Abstract:
1. A stator of an electric rotating machine, comprising: a stator core with a plurality of slots disposed along a circumferential direction of the stator core such that each of the slots extends along an axial direction of the stator core; and a stator winding composed of a plurality of conductor segments such that the conductor segments are disposed in the slots of the stator core so as to form a plurality of layers aligned with one another along a radial direction of the stator core in each of the slots and protrude from the slots, each conductor segment except for an end thereof being covered with an insulation film, each conductor segment comprising: an inserted portion received in the corresponding slot; and a slanting portion extending from the inserted portion along an inclination direction inclined with respect to each of the circumferential and axial directions so as to protrude from the slot receiving the inserted portion, each slanting portion in a part of the slanting portions comprising: an oblique portion extending straight from the inserted portion; and a film removal portion extending from the oblique portion and having a film removed surface covered with no insulation film, each film removal portion has a connection portion on an end of the film removal portion opposite to the oblique portion such that the connection portions of two conductor segments disposed in each pair of slots are connected with each other through the film removed surfaces so as to serially connect the conductor segments with one another, and each oblique portion has a slanting removal surface covered with no insulation film so that each slanting portion has a slanting removal area containing the film removed surface of the film removal portion and the slanting removal surface of the oblique portion, wherein the slanting removal area of each slanting portion corresponding to one layer on the innermost or outermost side of the stator core has a length in the extending direction of the slanting portion larger than a length of the slanting removal area of each slanting portion corresponding to one middle layer between the innermost and outermost sides of the stator core.