Patent ID: 7814642
Filing Date: 2010-10-19
Classification: H02K,Y10T

Abstract:
1. A method of manufacturing a stator of an electric rotating machine, said stator comprising a stator core and a stator winding, the method comprising: providing a plurality of core members for forming at least a portion of the stator core, each said core member having at least three first tooth portions to extend in a radial direction of said stator core and a core back portion integrally connecting said first tooth portions at a radially outer end side thereof, said first tooth portions defining slots therebetween at an inner periphery of the stator core along a circumferential direction thereof, each of said first tooth portions being selectively foldable or bendable to extend at least in part in a direction that is at an angle to said radial direction; providing a stator winding constituted by wound conductive wires, said stator winding including in-slot portions adapted to be accommodated in said slots of the stator core and turn portions each connecting each adjacent two of said in-slot portions outside of said slots; folding or bending the tooth portions of at least one of the core members thereby to form a hollow portion having d diameter that accommodates the stator winding at an axial center portion of the core member; in the state of the tooth portions being folded or bent, inserting the stator winding into the hollow portion, and sliding the core member in the axial direction thereof; and when the core member reaches a predetermined axial position with respect to the stator winding, unfolding the tooth portions so that the tooth portions extend radially inwardly to assume substantially their original shape, whereby each of the tooth portions radially penetrates between the adjacent in-slot portions of the stator winding and each of the in-slot portions is accommodated between each adjacent two of the tooth portions.