Electric machine winding layout arrangement

摘要

A rotational electric machine stator winding arrangement having a plurality of coils 106a-106h arranged in a ring and connected such that current flows in opposite directions through adjacent coils. The coils are divided into two circuits 108,110 and within each circuit the coils are connected in series with one another. The two circuits are connected in parallel with one another to a phase voltage Vp of the machine. At least one coil of each parallel circuit is discontinuous with the other coils of the corresponding circuit, and the coils configured to accept the phase voltage are not adjacent coils having a point at the lowest potential of the corresponding circuit. Figs 2-7 show examples of arrangements meeting the criterion.