Patent ID: 8823241

Claim:
An axial field rotary energy device having positive and negative polarity, multi-phase electric current terminals comprising: a rotor having a plurality of permanent magnet poles; and a segmented stator assembly having a plurality of stator segments arranged in an annular array with each stator segment having: a plurality of printed circuit board power conductor layers having at least one power conductor layer for each phase of the electric current, each of said power conductor layers having a pattern of a plurality of radial conductors running between an inner via and an outer via, said inner vias being located at an inner diameter of said power conductor layer and said outer vias being located at an outer diameter of said power conductor layers; each power conductor layer further having a pair of positive and negative terminal vias of one phase of the electric current and located adjacent an outer edge of each power conductor layer and further having a pair of terminal conductors for electrically connecting the positive and negative terminal vias to selected outer vias; a plurality of printed circuit board series layers, at least one of which is associated with each power conductor layer, and each one including a pattern of a plurality of radial conductors running between an inner via and an outer via, said inner vias being located at an inner diameter of said series conductor layer and said outer vias being located at an outer diameter of said connecting series conductor layer; each series conductor layer further having a plurality of outer conductors for electrically connecting selected outer vias together and a plurality of inner conductors for electrically connecting selected inner vias together; the inner and outer vias of the power conductor layer and the series conductor layer arranged for electrically connecting selected ones of the radial conductors of the series conductor layer to selected ones of the radial conductors of the power conductor layer; a daughter printed circuit board for electrically connecting two adjacent segments together; each daughter printed circuit board having a first portion electrically connected to a negative terminal via located in one segment and a second portion electrically connected to the positive terminal via located in an adjacent segment together with a current conductor electrically connected between the said negative terminal via and the said positive terminal via; and the segmented stator assembly further including a pair of phase conductors for electrically connecting the positive and negative current terminal of one phase of the electric current to selected ones of the positive and negative terminal vias of the segmented stator assembly.