TECHNICAL FIELD

The present invention relates to a method of manufacturing a rotary electric machine, and particularly to a method of manufacturing a rotary electric machine for driving a vehicle.

BACKGROUND ART

Along with rapid popularization of hybrid vehicles and electric vehicles, it has been demanded in recent years to devise various methods of manufacturing rotary electric machines.

PTL 1 discloses that with an inner-circumferential-side coil end portion40aand an outer-circumferential-side coil end portion40bcovered above stator wiring40, an annular insulating member53along the shape of a stator core30is disposed to protect the stator wiring40from damage due to heat such as sparks during welding.

However, there has been a possibility that an insulating member for insulation between stator coils is burnt and carbonized during welding.

CITATION LIST

Patent Literature

PTL 1: JP 2011-217511 A

SUMMARY OF INVENTION

Technical Problem

An object of the present invention is to suppress reduction of insulation reliability between stator coils.

Solution to Problem

A method of manufacturing a rotary electric machine according to the present invention is a method of manufacturing a stator including an insulating member intervening between a plurality of coil end portions each protruding from a stator core, the method including: a first step of disposing an interposed member to cover part of the insulating member between the plurality of coil end portions; and a second step of welding part of each of the plurality of coil end portions.

Furthermore, the method of manufacturing the rotary electric machine according to the present invention, in which the interposed member includes a material containing fiber.

Furthermore, the method of manufacturing the rotary electric machine according to the present invention, in which the interposed member includes a film material.

Furthermore, the method of manufacturing the rotary electric machine according to the present invention, in which the interposed member is disposed between the insulating member and a jig that positions the plurality of coil end portions.

Furthermore, the method of manufacturing the rotary electric machine according to the present invention, in which the interposed member is formed annularly along a disposed direction of the plurality of coil end portions, the interposed member having a plurality of through holes formed for inserting any of the plurality of coil end portions into the plurality of through holes.

Furthermore, the method of manufacturing the rotary electric machine according to the present invention, in which the interposed member is disposed at a substantial center in space between every adjacent coil end portions in a circumferential direction of the stator core.

Advantageous Effects of Invention

According to the present invention, there can be suppressed reduction of insulation reliability between stator coils.

