Patent ID: 7468570
Filing Date: 2008-12-23
Classification: H02K,Y10T

Abstract:
1. A stator for a multi-phase electric machine, the stator comprising: a plurality of core segments interconnected with one another, at least one core segment including a plurality of teeth and a back portion that at least partially interconnects the teeth, the back portion of each core segment having a first arrangement in which the teeth of that core segment are a first distance from one another and a second arrangement in which the teeth of that core segment are a second distance from one another, the second distance being smaller than the first distance; and a plurality of coils, each coil surrounding at least a portion of one tooth, wherein all coils surrounding teeth of a single core segment are interconnected to at least partially define one phase winding, wherein each of the plurality of core segments includes a center tooth having a first profile, a first end tooth having a second tooth profile, and a second end tooth having a third tooth profile, the first tooth profile being different than the second tooth profile and the third tooth profile.