Patent ID: 6411002
Filing Date: 2002-06-25
Classification: H02K

Abstract:
An axial field electric machine comprising:a conductor element including a plurality of subassemblies, each subassembly comprising: a substrate having first and second sides, a center and a periphery; a plurality of first conductors on the first side of said substrate, each of said first conductors including a radial portion extending in a generally radial direction from the periphery to the center of said substrate; a plurality of second conductors disposed on the second side of said substrate; each of said second conductors including a radial portion extending in a generally radial direction from the periphery to the center of said substrate; and said substrate including a plurality of inter-side through holes extending between and coupling selected ones of the first conductors to selected ones of the second conductors; and a plurality of terminal through holes extending between adjacent subassemblies and coupling selected ones of the first and second conductors in one subassembly to selected ones of the first and second conductors in an adjacent subassembly; first and second magnetic elements disposed axially adjacent to said first and second sides of said conductor element, each of said first and second magnetic elements having an outer face and a plurality of adjacent magnetic poles; and first and second endplates coupled to the outer faces of said first and second magnetic element, respectively, each of said endplates being made of a material so that flux from a first magnetic pole flows to adjacent magnetic poles of the first and second magnetic elements; said conductor element and said first and second magnetic elements are adapted to rotate relative to each other.