Electromagnetic repulsion rapid vacuum switch

The invention discloses an electromagnetic repulsion rapid vacuum switch, and belongs to the technical field of power switches, the electromagnetic repulsion rapid vacuum switch comprises a base, a buffer assembly is arranged in the base, a mounting box is arranged at the top of the buffer assembly, a shell is arranged at the top of the mounting box, and a vacuum arc extinguish chamber is arranged at the top of the shell. According to the device, a mounting plate drives a rack to move up and down, a gear drives a rotating shaft and a cam to rotate, the cam continuously extrudes a rectangular sliding plate, a second air bag and a first spring, air in the second air bag is conveyed into a third cavity, and then the air is sprayed out through a plurality of air outlets; the air mobility in the mounting box is improved while closing or opening is carried out, auxiliary heat dissipation is carried out on the interior of the mounting box, and the situation that heat generated during closing or opening is accumulate