Safety device for switch

A safety device for a switch, comprising:

• a casing having an opening;
• a top cover movably disposed at the opening of the casing;
• a conductive plate including a fixed end, a free end, a first side and a second side, the free end of the conductive plate having a first contact point;
• at least two terminals defining a first terminal and a second terminal respectively, the first terminal having a first end and a second end, the first end of the first terminal in connection with the fixed end of the conductive plate, the second end of the first terminal extending out of the casing and in connection with a first wire, the second terminal having a first end and a second end, the first end of the second terminal having a second contact point, the second contact point corresponding to the first contact point, and the second end of the second terminal extending out of the casing and in connection with a second wire;
• a pushing member disposed between the first terminal and the second terminal and including an end portion, a gap defined between the end portion and the first side of the conductive plate;
• and
• a connection member in connection with the top cover and the free end of the conductive plate;
• wherein when the top cover is pressed down, the connection member pushes the conductive plate to move downward in such a manner that the first contact point and the second contact point are in contact with each other so as to form a circuit;
• and
• wherein when the circuit is under a current overload condition and the conductive plate is overheating, the conductive plate is bent and deformed toward the first side of the conductive plate, and the first side of the conductive plate is in contact with the end portion of the pushing member, thereby forcing the free end of the conductive plate to bounce toward the second side of the conductive plate in such a manner that the first contact point and the second contact point are separated from each other and the circuit is cut off.