Patent ID: 7081697
Filing Date: 2006-07-25
Classification: H02K

Abstract:
1. A stator assembly for a dynamoelectric machine, comprising: a generally cylindrically-shaped stator core having a plurality of circumferentially spaced radially-extending core teeth, adjacent core teeth defining core slots in a surface thereof and each having a respective radial depth and axial length, the core slots extending between a first and a second axial ends of the stator core; and a stator winding having slot wire segments received by the core slots and the slot wire segments of the stator winding and the core slots being electrically insulated from one another by insulation members, wherein the plurality of core teeth having projections that define slot openings between adjacent core teeth, wherein the core slot openings have a width that allow for a radial insertion of the slot wire segments, and the width of the slot openings is less than a width of a main portion of the core slots, and wherein the slot wire segments are aligned in a radial row in a plurality of core slots and whose widths, including corresponding slot wire segment insulation, closely fit to the width of the main portion of the core slots; a surface area at the inner diameter of the core teeth including the projections is approximately equal to or less than 20% a surface area at the inner diameter of the core teeth excluding the projections.