Composite permanent magnetic coupler

The utility model discloses a composite permanent magnetic coupler, which comprises a magnetic carrier and magnetic conductors. The magnetic carrier is provided with a permanent magnet; a pair of magnetic conductors is symmetrically arranged at two sides of the magnetic carrier; a first output shaft connected to one side of the magnetic carrier extends to the outside of one magnetic conductor; a first input shaft is connected to the outside of the other magnetic conductor; the first output shaft is connected to a second output shaft through a first transmission mechanism; and the first input shaft is connected to a second input shaft through a second transmission mechanism. According to the utility model, an intermediate mechanical speed change system is added, so that the magnetic carrier and magnetic conductors of the permanent magnetic coupler operate in high speeds; the input and output rotational speeds of the whole composite permanent magnetic coupler satisfy an on-site working condition; and efficiency of the permanent magnetic coupler is improved.