Abstract: The disclosure relates to array of conductors for a winding for an electrical machine wherein a first group of conductors extend on a first surface parallel to a reference surface, comprising N_s subgroups each having N_c first conductors, and a second group of second conductors extend on a second surface parallel to said reference surface, comprising also N_s subgroups each having N_c second conductors. First conductors of the first group overlap second conductors of the second group at interconnection zones, comprising upper interconnection zones and lower interconnection zones opposite to the upper interconnection zones with respect to the curve, where first conductors may be connected to second conductors for forming coils. The disclosure also relates to a winding comprising such an array and to an electrical machine comprising such a winding.

Abstract: A method for producing a winding assembly for an electro-mechanical device, wherein the winding assembly comprises a circuit board with conductor tracks, wherein the winding assembly preferably comprises a substantial number of optimizable design parameters, the method comprising: optimizing, in a computerized optimization tool, the design of the winding assembly; manufacturing the circuit board with the winding conductor tracks according to the optimized design of the winding assembly; forming the winding assembly of the electro-mechanical device with the manufactured circuit board. The design of the winding assembly is optimized depending on at least one of eddy current losses, hysteresis losses, aerodynamical losses and mechanical losses.