Patent ID: 6940202
Filing Date: 2005-09-06
Classification: H02K

Abstract:
1. A stator for an electric machine, comprising: a generally cylindrically-shaped stator core having a plurality of circumferentially spaced and axially-extending core slots in a surface thereof, said core slots extending between a first and a second end of said stator core; and a stator winding having a plurality of phases, each phase comprising a first filar and a second filar extending circumferentially around said stator core to form a plurality of layers; each of said filars having a plurality of substantially straight segments disposed in said core slots, said straight segments alternately connected at said first and second ends of said stator core by a plurality of end loop segments, each of said straight segments of a particular layer being a same radial distance from a central axis of said stator core; said first and second filars of a particular phase each having an average radial position within said stator core, said first and second filars of each phase being staggered throughout said layers such that a distance between said average radial position of said first filar and said average radial position of said second filar is minimized.