Patent ID: 7545063
Filing Date: 2009-06-09
Classification: H02K

Abstract:
1. A wire-connection structure of a motor, comprising: an annular stator including coils of a plurality of phases, the coils being arranged alternately in a circumferential direction; bus rings of a plurality of phases, each of the bus rings being formed by a bent wire material into a substantially annular shape and arranged along the stator; windings of the coils of the same phase being arranged at predetermined intervals and wire-connected to each other by the corresponding bus ring, wherein the bus rings comprises: a plurality of large diameter portions and a plurality of small diameter portions extending alternately in the circumferential direction; and a plurality of link portions extending in a radial direction and connecting the adjacent large diameter portion and small diameter portion to each other, and wherein the windings of the coils are wire-connected to the link portions.