Patent ID: 6275133
Filing Date: 2001-08-14
Classification: H01H

Abstract:
A switch structure, comprising a switch body, a switch cover body, a contact reed, a swing device, an alloy piece, an elastic contact piece, wherein said switch body is installed with a fixing pillar and a stopper, and said switch cover body joints with said contact reed, said swing device, and is installed with said alloy piece and said elastic contact piece, which are constructed and assembled in said switch body, wherein:said swing device has an elliptic hole at one end to connect to said fixing pillar in said switch body so as to swing, and a supporting rod used to insert into a through hole in said swing device to connect to said switch cover body, and anther end of said swing device is installed with an actuating part, which can rotate and is installed with an end part at another end;said alloy piece is fixed within said switch body, and a top side of said alloy piece pushes the end part of said actuating part installed in the swing device wherein said alloy piece is overheated and bends towards said actuating part when a current is overloaded, to push said actuating part to escape from the stopper in said switch body and then to fall down so that said swing device swings towards an original OFF position to release the elastic contact piece from a pressed status under said swing device to eject upwards, and meanwhile, two contact terminals which construct an electric loop are separated to cut off a power source.