Electric power collection and distribution ring, electric motor and method of manufacturing electric motor

摘要

An electric power collection and distribution ring includes a plurality of annular bus rings for collecting and distributing power to windings of a stator, the windings being covered with an insulation cover and the stator being formed by winding the windings around a plurality of teeth arranged in a circular pattern. The bus ring is formed by annularly coupling a plurality of arc-shaped conductive members each including terminal portions at both circumferential end portions, the terminal portions being welded to each other together with an end portion of the winding. The terminal portion includes a first contact surface coming into contact with the end portion of the winding at the time of the welding and a second contact surface to be a contact point between the terminal portions.

主权项

1. An electric power collection and distribution ring, comprising:
a plurality of annular bus rings for collecting and distributing power to windings of a stator, the windings being covered with an insulation cover and the stator being formed by winding the windings around a plurality of teeth arranged in a circular pattern, wherein the bus ring is formed by annularly coupling a plurality of arc-shaped conductive members each comprising terminal portions at both circumferential end portions, the terminal portions being welded to each other together with an end portion of the winding, wherein the terminal portion comprises a first contact surface coming into contact with the end portion of the winding at the time of the welding and a second contact surface to be a contact point between the terminal portions, and wherein the second contact surfaces are provided at two positions sandwiching the first contact surface.