35results about How to "Improve flux utilization" patented technology

The embodiment of the application discloses a rotor motor driving system, and the rotor motor driving system provided by the embodiment of the application comprises a driving motor and a hybrid rotor, the hybrid rotor is arranged on a rotating shaft of the driving motor, the hybrid rotor has a first section and a second section, the second section has four first magnetic poles, each first magnetic pole has two V-shaped magnetic parts and a U-shaped magnetic part.In the technical solution, the tangential magnetic field generated by the V-shaped magnetic part and the radial magnetic field of the U-shaped magnetic part are superposed, so that the air gap magnetic density waveform is closer to a sine, compared with a traditional scheme in which only the V-shaped magnetic part is used, the technical solution can effectively reduce torque ripple.Meanwhile, the U-shaped magnetic part forms a closed magnetic circuit, cooperates with the open magnetic circuit of the V-shaped magnetic part, and can improve the magnetic flux utilization rate.Furthermore, the U-shaped magnetic steel and the V-shaped magnetic steel can form a multi-stage mechanical structure, and can reduce the centrifugal stress when the hybrid rotor rotates at high speed.