Patent ID: 8413314
Filing Date: 2013-04-09
Classification: H02K,Y10T

Abstract:
1. A method of manufacturing a stator for an electric rotating machine, wherein the stator comprises a hollow cylindrical stator core having a plurality of slots that are formed in a radially inner surface of the stator core and spaced in a circumferential direction of the stator core, the method comprising the sequential steps of: forming a plurality of planar electric wires, each of the planar electric wires including a plurality of in-slot portions to be received in the slots of the stator core and a plurality of turn portions to be located outside of the slots to connect the in-slot portions; then rolling each of the planar electric wires through plastic deformation into a spiral or circular-arc shape; then forming a hollow cylindrical stator coil by assembling the rolled electric wires through relative axial movements therebetween to align the in-slot portions of at least two rolled electric wires; and assembling the stator core and the stator coil together to form the stator.