Switch module of built-in anti-surge disconnection structure

A switch module of built-in anti-surge disconnection structure, comprising:

• a housing having a press button arranged atop thereof, and a first conductive plate, a second conductive plate and a third conductive plate arranged at a lower section thereof;
• the first conductive plate being connected to a binary alloy conductive plate and having a first connecting point, and the second conductive plate having a second connecting point on the surface of an upper section thereof corresponding to the first connecting point;
• a moving rod linking up the bottom of the press button with one end and the binary alloy conductive plate with the other end for the first connecting point to contact the second connecting point, consequently turning on the switch, and for the first connecting point to detach from the second connecting point when current overload occurs and the binary alloy conductive plate is deformed due to high temperature, consequently turning off the switch, so as to form an overcurrent protection switch;
• wherein an anti-surge disconnection structure is built inside the housing, including:
• at least one metal oxide varistor being disposed under a plate and having a first surface and an opposite second surface;
• at least one spring element having an outer periphery with an extended portion connecting the first surface of the metal oxide varistor with the second conductive plate, and a springy section being compressed on the first surface of the metal oxide varistor, the extended portion being arranged as a bended portion;
• at least one thermo-sensitive piece being solid colloid to be adhered on the first surface of the metal oxide varistor for fixedly adhering the springy section of the spring element on the first surface of the metal oxide varistor for the spring element to be ready for ejection;
• a pushing element having a first end thereof arranged correspondingly to the metal oxide varistor and the springy section of the spring element, and a second end thereof arranged correspondingly to the binary alloy conductive plate for pushing;
• whereby when the first connecting point is contacting the second connecting point and an overvoltage occurs, the temperature of the metal oxide varistor would instantly rise up to a degree higher than the melting point thereof, therefore melting the thermo-sensitive piece, loosening the springy section of the spring element and displacing the pushing element to force the first connecting point detaching from the second connecting point and turn off the switch.