Patent ID: 7834506

Claim:
A winding structure of a rotating electric machine, comprising: a core body having teeth; and a winding portion wound around the teeth of said core body, wherein said winding portion has a first coil group and a second coil group, said first coil group and said second coil group are connected in parallel, said first coil group includes a plurality of first coils connected in series, said plurality of first coils are wound oppositely in direction by turns in the order in which said first coils are connected in series, said plurality of first coils are grouped into at least a first coil set and a second coil set and spaced apart in the circumferential direction of said core body such that the first coil set and the second coil set are positioned opposite to each other in the radial direction of said core body in order to suppress the generation acyclic current in said first coil group and second coil group connected in parallel, said first coil set and said second coil set each include at least two adjacent first coils from the plurality of first coils, said second coil group includes a plurality of second coils connected in series, said plurality of second coils are wound oppositely in direction by turns in the order in which said second coils are connected in series, said plurality of second coils are grouped into at least a third coil set and a fourth coil set and spaced apart in the circumferential direction of said core body such that the third coil set and the fourth coil set are positioned opposite to each other in the radial direction of said core body in order to suppress the generation of cyclic current in said first coil group and second coil group connected in parallel, and said third coil set and said fourth coil set each include at least two adjacent second coils from the plurality of second coils.