Heat destructive disconnecting switch

A heat destructive disconnecting switch, comprising:

• a base, which is provided with a holding space;
• a first conductive member, which penetrates and is mounted on the base;
• a second conductive member, which penetrates and is mounted on the base;
• a movable conductive member, which is mounted within the holding space and electrically connected to the first conductive member, and selectively connects with the second conductive member;
• an overheating destructive member, which is destructed under a fail temperature condition, the fail temperature lying between 100° C. to 250° C.;
• an operating component, which is assembled on the base and comprises an operating member and a first elastic member, wherein the operating member comprises a contact member and a limiting member, the contact member contacts the movable conductive member, and the first elastic member comprises a first spring and a second spring, wherein the first spring butts against the limiting member, the second spring butts against the contact member, and the overheating destructive member butts between the first spring and the second spring, which causes the first spring and the second spring to be compressed and respectively provided with an elastic force, the total combined elastic force of the first spring and the second spring provides a first elastic force;
• a second elastic member, which is provided with a second elastic force that acts on the operating member;
• whereby when the operating member is at a first position, the first elastic force presses and forces the contact member to butt against the movable conductive member, the movable conductive member then contacts the second conductive member to form a power-on state;
• when in the power-on state, an electric current passes through the first conductive member, the movable conductive member, and the second conductive member, producing heat energy that the overheating destructive member absorbs and becomes destructed under the fail temperature condition, resulting in lessening or loss of the first elastic force, at which time the second elastic force is larger than the first elastic force, thereby enabling the second elastic force to press and force the operating member to displace to a second position, and causing the movable conductive member to separate from the second conductive member to form a power-off state.