Electric motor magnetic flux path structure

The invention relates to permanent magnet electric motors and more particularly, to a flux path of the motor in the form of a coil spring structure to hold the permanent magnets with respect to a frame. An electric motor has an armature including windings . The armature is constructed and arranged to rotate a shaft . The motor includes a commutator and a brush card assembly having brushes to engage the commutator and conduct electrical current to the windings. A permanent magnet structure is disposed about the armature. A frame assembly carries the permanent magnet structure. A coil spring structure , containing iron, is disposed about and contacts the permanent magnet structure to define a flux path of the motor.