Patent ID: 8294324

Claim:
A rotating machine for a vehicle, having a stator and a rotor disposed rotatably inside the stator; wherein: the stator comprises a stator core including slots disposed at a uniform pitch throughout its circumference, and a stator coil disposed within the slots; the stator core comprises a plurality of coil part pairs, each using two coil parts having a first coil portion with a lap winding structure and a second coil portion also with a lap winding structure; each of the pairs is configured such that the first coil portion and the second coil portion thereof are connected to each other in series through a coil-to-coil extending line at inner periphery sides of the first coil portion and the second coil portion; one-side halves of the first and second coil portions are disposed into two adjacent slots on a rotor side of the slots respectively and other-side halves thereof are disposed into two other adjacent slots on a bottom side Of the slots respectively, wherein the two adjacent slots and the two other adjacent slots have a predetermined mechanical angle therebetween, and wherein at either the one-side halves or the other-side halves, at one end side of the corresponding adjacent slots, the coil-to-coil extending line is provided to connect between the first coil portion and the second coil portion; the respective coil part pairs are wound, with a substantially hexagonally shaped lap winding structure having plural turns, through one of the slots of the two adjacent slots and another of the slots of the two other adjacent slots respectively, with crossover connecting wire portions that bridge over an axial extremity of the coil portions in a substantially spiral shape, and connect the coil part pairs to each other; a transition from a rotor side of each coil portion in the one slot of the two adjacent slots to a bottom side of the coil portion in the other slot of the two other adjacent slots is formed via a coil end of said coil portion, extending in approximately the same direction; the respective coil part pairs are connected to each other through the crossover connecting wire portions, which are disposed beyond an axial extent of the respective coil part pairs; and the coil portions of the coil part pairs are formed collectively and continuously with each other, with the crossover connecting wire portions, and with the coil-to-coil extending line by a single continuous wire that has a substantially rectangular cross section and runs continuously through and between all of the coil portions and the crossover connecting wire portions.