Patent ID: 7919894
Filing Date: 2011-04-05
Classification: H02K,H02P

Abstract:
1. A stator assembly for a multi-phase electric machine, the assembly comprising: a stator having a plurality of radially-extending slots around a periphery of the stator, and a multi-phase winding set comprising at least three phase windings each configured for carrying an alternating current signal of a distinct phase relative to the other phase windings, the at least three phase windings disposed regularly around the stator in selected stator slots, each stator slot carrying only one of said at least three phase windings, the at least three windings extending circumferentially from respective slot to respective slot adjacently to one another along a common face of the stator, the at least three windings extending adjacently to one another along the common face at different radial distances relative to the stator, the radial distances being selected to provide a radial air-gap separation between adjacent phase windings.