Abstract: A motor includes a rotor having a pattern of permanent magnetic portions, and a stator disposed proximate to the rotor. In some arrangements, a stator housing of the stator has a segmented backplane formed of a plurality of metal segments in electrically non-conducting (or non-electrically conductive) thermal contact to provide for heat transfer from the forcer coils to a separate stator mounting structure while minimizing eddy currents and associated effects in the stator housing. In some arrangements, the stator housing of the stator has a coil-housing portion for holding the coils and a distinct mounting portion for attaching the stator to a separate support structure, the coil-housing portion being of an electrically non-conductive material effective to provide for heat transfer from the forcer coils to the mounting portion while avoiding eddy currents and associated effects in at least the coil-housing portion of the stator housing.

Abstract: A motor includes a rotor having a pattern of permanent magnetic portions, and a stator disposed proximate to the rotor. In some arrangements, a stator housing of the stator has a segmented backplane formed of a plurality of metal segments in electrically non-conducting (or non-electrically conductive) thermal contact to provide for heat transfer from the forcer coils to a separate stator mounting structure while minimizing eddy currents and associated effects in the stator housing. In some arrangements, the stator housing of the stator has a coil-housing portion for holding the coils and a distinct mounting portion for attaching the stator to a separate support structure, the coil-housing portion being of an electrically non-conductive material effective to provide for heat transfer from the forcer coils to the mounting portion while avoiding eddy currents and associated effects in at least the coil-housing portion of the stator housing.