Patent ID: 8659202

Claim:
A stator for an electric rotating machine, the stator comprising: a hollow cylindrical stator core having a plurality of slots formed therein, the slots being spaced from one another in a circumferential direction of the stator core and each extending in an axial direction of the stator core so as to penetrate the stator core in the axial direction; and a stator coil comprised of a plurality of electric conductor segments mounted on the stator core, each of the electric conductor segments having an insulating coat covering its outer surface and including, at least, an in-slot portion and an oblique portion, the in-slot portion being received in a corresponding one of the slots of the stator core, the oblique portion being connected to the in-slot portion and located outside of the slots of the stator core, the oblique portion being positioned axially outside of an axial end face of the stator core and extending obliquely with respect to the axial end face, wherein each of the electric conductor segments also has an insulating coat-removed portion from which the insulating coat is removed, the insulating coat-removed portion being positioned on the same axial side of the stator core as the oblique portion of the electric conductor segment, each corresponding pair of the insulating coat-removed portions of the electric conductor segments are joined with a joint formed therebetween, for each of the electric conductor segments, the oblique portion of the electric conductor segment is comprised of a first part and a second part, the first part extends, along the circumferential direction of the stator core, obliquely with respect to the axial end face of the stator core with a first oblique angle θ 1 formed between the first part and the axial end face, the second part extends, along the circumferential direction of the stator core, obliquely with respect to the axial end face of the stator core with a second oblique angle θ 2 formed between the second part and the axial end face, the second oblique angle θ 2 being greater than the first oblique angle θ 1 , and the second part is positioned closer to the joint, where the insulating coat-removed portion of the electric conductor segment is jointed to the insulating coat-removed portion of another electric conductor segment, than the first part is.