A switch module of built-in anti-surge disconnection structure mainly comprises an overcurrent protection switch and an anti-surge disconnection structure ingeniously built inside a heat-resisting housing. The switch module has a first connecting point and a second connecting point for operation. When overvoltage occurs, the temperature of at least one metal oxide varistor would instantly rise up to a degree higher than the melting point thereof, melting at least one thermo-sensitive piece, loosening at least one spring element, displacing a pushing element, and thus forcing the connecting points detaching from each other to turn off the switch and stop supplying the electricity power, so as to ensure more of electricity safety. Also, the switch module has the colloid thermo-sensitive piece directly fixing the spring element instead of having a band for fixing in the prior art, achieving an easier manufacturing process and better effectiveness of the switch module.

The present invention discloses a double-sheet-metal structure for switches, and belongs to the technical field of switching equipment. The double-sheet-metal structure for switches includes a base, a main body and a fixed bracket. The present invention solves the problems of excessive deformation of the double sheet metal after a long time and difficulty in restoring the original state, achieving higher radian height of overall deformation of the double sheet metal and higher stability of current of the double sheet metal, and then realizing more excellent overall performance and more convenient operation.