Rotary impact current prevention switch device based on magnetorheological effect

The invention relates to a rotary impact current prevention switch device based on a magnetorheological effect, which comprises an enclosed insulator square box, wherein the enclosed insulator squarebox is arranged between two magnets; and a magnetorheological material is packaged in the enclosed insulator square box. Both upper and lower surfaces of the enclosed insulator square box respectivelyare metal electrodes, and the metal electrodes are connected with wires. Four front, rear, left and right surfaces of the enclosed insulator square box are insulation surfaces, wherein the front andrear surfaces are respectively connected with rotating shafts. The enclosed insulator square box is a flat square body. The rotary impact current prevention switch device based on the magnetorheological effect, which is disclosed by the invention, regulates a magnetic field direction applied by the outside by controlling a rotating angle of the magnetorheological material part so as to fulfill theswitch on-off aim, and regu