Magnetic gear having a magnetic flux concentrating pole piece and a magnetic gear in which the pole piece is provided outside the rotor

摘要

The present invention relates to a magnetic gear. The present invention improves the form of the pole pieces located between the rotors and concentrates the magnetic flux in the gap so that the transmission torque can be improved and the torque ripple can be reduced. By providing a magnetic gear with a pole piece and a pole piece outside the rotor that is spaced apart on the rotating shaft, the number of air gaps can be reduced and the structure can be simplified, and the bearing supporting the rotating shaft can be simplified. Provided is a magnetic gear that can reduce the number and minimize the reduction in torque transmission rate due to friction. [Selection] Figure 4