Automatic changeover using permanent magnetic operating mechanism

The utility model discloses an automatic conversion switch which adopts a permanent operation mechanism. A pair of single pole or multi-pole moving contact systems, a pair of single pole or multi-pole arc extinguishing systems and a fixed contact which is arranged corresponding to the moving contact system are arranged on a base plate. The automatic conversion switch is characterized in that the base plate is also provided with a pair of brackets and two permanent magnetism operation mechanisms; the bracket is provided with a pair of rotary shafts which are linked with the moving contact systems and two rotary shafts are respectively provided with a link rod which is linked with the two permanent magnetism operation mechanisms. The operation mechanism of the automatic conversion switching device of the utility model adopts the permanent magnetism operation mechanism and the automatic conversion switch is characterized by realizing an automatic conversion switching device with one power terminal or another power terminal being closed (or cut) by adopting the permanent magnetism operation mechanism to drive the rotary shaft to rotate at certain angles through the link rod, sparing the mechanical tripping and fastening system of the traditional automatic conversion switch and keeping the automatic conversion switch in the closing or tripping position by the retention generated by the permanent magnet.