Patent ID: 6715199
Filing Date: 2004-04-06
Classification: H02K,Y10T

Abstract:
A method for manufacturing a stator for a dynamo-electric machine, said stator for a dynamo-electric machine comprising: a stator core constructed by laminating steel plate, said stator core being formed with slots which extend in an axial direction, said slots being spaced in a circumferential direction around said stator core; a winding disposed in said slots; wedges disposed in entrance portions of said slots, said wedges preventing said winding from protruding radially inwards from said slots, said stator core comprising: an annular core back having engaged portions formed so as to be spaced around an inner circumferential portion of said core back; and teeth having engaging portions for engaging said engaged portions and forming said slots, said winding comprising a conductor having an overall shape being a crank shape when flattened out, said conductor comprising: straight portions laminated within said slots; and bridge portions connecting said straight portions to each other, said bridge portions protruding from both end surfaces of said stator core in said axial direction,said method for manufacturing a stator for a dynamo-electric machine comprising: a step of joining said teeth into an annular shape by engaging said wedges in said entrance portions of said slots; a step of installing in said teeth a block-shaped winding formed by lamination by winding said conductor for a number of laps; a step of engaging said engaging portions of said teeth in said engaged portions of said core back; and a step of disposing the wedges in entrance portions of said slots.