Patent ID: 9325214
Filing Date: 2016-04-26
CPC Classification: H02K

Claim Text:
1. An electric power collection and distribution ring, comprising: a first to a third bus rings configured to collect and distribute electric power from and to winding wires of a plurality of phases, the winding wires constituting a stator configured such that the winding wires are wound up around a plurality of teeth arranged annularly, wherein the first bus ring comprises a first annular conductor part comprising an insulated electric wire comprising a center conductor and an insulation coating formed on an outer periphery of the center conductor, a plurality of first connection terminal parts configured to connect the first annular conductor part and the winding wire, and a first feeding terminal part configured to feed electric power to the first annular conductor part, wherein the second bus ring comprises a second annular conductor part comprising an insulated electric wire comprising a center conductor and an insulation coating formed on an outer periphery of the center conductor, a plurality of second connection terminal parts configured to connect the second annular conductor part and the winding wire, and a second feeding terminal part configured to feed electric power to the second annular conductor part, wherein the third bus ring comprises a third annular conductor part comprising an insulated electric wire comprising a center conductor and an insulation coating formed on an outer periphery of the center conductor, a plurality of third connection terminal parts configured to connect the third annular conductor part and the winding wire, and a third feeding terminal part configured to feed electric power to the third annular conductor part, wherein the first annular conductor part and the third annular conductor part are coaxially arranged in parallel in such a manner that the first annular conductor part is located at one side in a diameter direction of the second annular conductor part and the third annular conductor part is located at another side in a diameter direction of the second annular conductor part, wherein the first to the third connection terminal parts project at one side in an axial direction of the first to the third annular conductor parts, toward the one side in the diameter direction than the first annular conductor part, wherein the first feeding terminal part comprises a first connection part sandwiching the center conductor of the first annular conductor part in the axial direction to be connected to the center conductor of the first annular conductor part, a second connection part configured to project toward the another side in the diameter direction than the third annular conductor part so as to be connected to current feeders and a joining part configured to join the first connection part and the second connection part, wherein the second connection part and the joining part project at the another side in the axial direction toward the another side in the diameter direction without projecting toward the one side in the axial direction, wherein the second feeding terminal part comprises a first connection part sandwiching the center conductor of the second annular conductor part in the axial direction to be connected to the center conductor of the second annular conductor part, a second connection part configured to project toward the another side in the diameter direction than the third annular conductor part so as to be connected to current feeders and a joining part configured to join the first connection part and the second connection part, wherein the second feeding terminal part projects toward another side in an axial direction of the first to the third annular conductor parts without projecting toward the one side in the diameter direction than the first annular conductor part, wherein the second connection part and the joining part project at the another side in the axial direction toward the another side in the diameter direction without projecting toward the one side in the axial direction, and wherein the third feeding terminal part comprises a first connection part sandwiching the center conductor of the third annular conductor part in the axial direction to be connected to the center conductor of the third annular conductor part, a second connection part configured to project toward the another side in the diameter direction than the third annular conductor part so as to be connected to current feeders and a joining part configured to join the first connection part and the second connection part, wherein the third feeding terminal part projects toward the another side in the axial direction of the first to the third annular conductor parts without projecting toward the one side in the diameter direction than the second annular conductor part, wherein the second connection part and the joining part project at the another side in the axial direction toward the another side in the diameter direction without projecting toward the one side in the axial direction.