2 results about "Magnetic composite" patented technology

A double high axial motor capable of effectively reducing back electromotive force torque pulsation comprises a sectional armature (1), a rotor disc (2), a bearing pressure plate (3), an iron core (4) and a stator bar (5), and is characterized in that the iron core (4) of the sectional armature (1) adopts an axial motor separation design, a bearing is fixed on a stator by the bearing pressure plate (3), the iron core (4) is fixed by the sectional armature (1) through the stator bar (5), and an external motor case is connected; the iron core (4) is made of a soft magnetic composite material, arc-shaped surfaces are designed in sequence according to different pole numbers, the part close to a wire inlet end is small in radian or is not arranged, and the part far away from the wire inlet end is appropriate in radian, so that the salient pole rate is improved, the influence of inter-pole resistance on counter electromotive force is reduced, and the permanent magnets can be effectively utilized; materials are saved, and power and torque are improved.