Patent ID: 6943477

Claim:
A stator of a rotary electric machine, comprising: a stator core having a plurality of slots; and a poly-phase winding comprising accommodated portions accommodated in the slots to provide at least two pairs of the accommodated portions, each of the pairs including an inner layer and an outer layer with respect to a radial depth of the slots, and turn portions connecting a pair of accommodated portions in the different layers and providing coil ends on opposite sides of the stator core, wherein the poly-phase winding comprises a plurality of phase windings, each phase winding being made of a continuous wire, and the turn portions being arranged side by side with respect to a radial direction on one side of the stator core, the accommodated portions of each phase winding are accommodated in slots that are spaced apart at equal pitches, and the number of the accommodated portions accommodated in each slot is the same, wherein the turn portions arranged side by side, form a concentric on one side of the stator core by arranging the turn portions concentrically, and the concentric arrangement is disposed only on the one side of the stator core, and the turn portions form a surrounding arrangement only on another side of the stator core by surrounding one group of turn portions with another group of turn portions.