Patent ID: 6935012

Claim:
A method of manufacturing a dynamo electric machine in which one of side sections of each of a plurality of unit windings is disposed in one of a plurality of slots formed on a stator core other than another slot in which the other side section thereof is disposed by crossing over a predetermined plurality of slots wherein a first winding section of the unit winding having a straight shaped open end sections at the one side thereof is formed in advance in such a manner that a laminate of a plurality of straight shaped winding conductors is twisted at the midway thereof to form a crossing over width between two side sections formed which permits to cross over a plurality of slots as well as to form a step in the radial direction of the stator core between the two side sections, two open ends of opened end sections of the first winding section are inserted into two of the plurality of slots from one of two ends in the axial direction of the stator core, the straight shape opened end sections of the first winding section which project from the other end portion in the axial direction of the stator core are bent in the crossing over direction of the winding so as to oppose the open ends in the radial direction of the stator core, the open ends of the opened end sections of the first winding section are connected by a winding conductor piece constituting a second winding section of the unit winding, and above series of steps is repeated by the number of unit windings to be disposed in the plurality of slots so as to constitute a stator winding.