Patent ID: 7915781

Claim:
A stator winding method for winding conductive wires around an annular stator including a core having 3n (n: an integer number equal to or more than 2) teeth projecting toward an inner circumferential side of the stator and 3n slots each arranged between the adjacent teeth, wherein in a group of three teeth of the 3n teeth radially arranged at intervals of 120 degrees, respective slot portions of the slots positioned on both sides of each of the three teeth in the group and also positioned on the side of the each of the three teeth in the group are formed so that distances of the slot portions from a center of the stator are smaller than distances of the remaining slot portions from the center of the stator, the stator winding method comprising: preparing a bobbin machine having three nozzles arranged at intervals of 120 degrees radially; winding the conductive wires around the three teeth in the group in a n th winding process; and at the final stage of the n th winding process, moving the nozzles from an outer circumferential side of the slots toward the inner circumferential side, while winding the conductive wires around the teeth so that each gap between a part of conductive wires wound around each of the three teeth in the group in the n th winding process and another part of conductive wires wound around the teeth adjacent to the each of the three teeth in the group, is smaller than an outer diameter of the nozzle.