1results about How to "Increased reliability and axial stiffness" patented technology

The invention discloses a bearingless permanent magnet sheet motor. A circular-cake-shaped rotor permanent magnet is coaxially and fixedly connected to the axial top surface of a cross-shaped sheet rotor with a cross-shaped radial section; six identical L-shaped stator iron core columns are uniformly distributed on the periphery of the cross-shaped sheet rotor in the circumferential direction, wherein each L-shaped stator iron core column is composed of an axial stator yoke and radial stator teeth, and the stator teeth and the cross-shaped sheet rotor 1 are arranged in a radial opposite mode,and a radial air gap is formed therebetween; the outside of a disc-shaped iron core magnetic yoke is fixedly sleeved with the bottoms of the stator yokes of the six L-shaped stator iron core columns;the stator yoke of each L-shaped stator iron core column is wound with a set of torque windings and suspension force windings; a ring-shaped stator permanent magnet is coaxially and fixedly arranged on the top surfaces of the stator teeth of the six L-shaped stator core columns; and the stator permanent magnet and the rotor permanent magnet are both magnetized in the axial direction, and the magnetizing directions of the stator permanent magnet and the rotor permanent magnet are opposite. According to the bearingless permanent magnet sheet motor, the reliability and the axial rigidity of the rotor can be improved.