Early warning switch and box body using same

Abstract

The invention provides an early warning switch which comprises a body, a touch switch and a press piece. The body comprises an upper end face and a lower end face which corresponds to the upper end face, and a containing groove which penetrates through the upper end face and the lower end face is arranged in the body. The early warning switch is contained in the containing groove, and comprises two pins and a button rod. The button rod extends out from the upper end face of the body. The two pins are connected with or disconnected from each other when an external force is applied to the button rod, and the status of the two pins when the external force is applied to the button rod is reverse to the status of the two pins when the external force is not applied to the button rod. The press piece comprises a connecting section and a moving section connected with the connecting section. One end of the connecting section, which is far away from the moving section, is fixedly arranged on the upper end face, and the connecting section is arranged above the button rod. The moving section has the shape of a concaveness which is faced to the upper end face. According to the invention, the press piece is arranged above the button rod, so that the touch switch can not be damaged caused by the uneven force application. The invention further provides a box body.

Description

technical field [0001] The invention relates to a switch element, in particular to an early warning switch and a box using the early warning switch. Background technique [0002] The chassis includes a half-closed shell and a movable plate that closes the shell. Electronic components such as the motherboard and power supply are accommodated in the shell. It is very dangerous to expose the mains components to the outside. [0003] In order to let the user know that the movable panel is in the open state at the first time, the designer will install a touch switch on the casing to warn whether the movable panel is in the open state. And traditional touch switch comprises a base plate, two pins that are fixed on the base plate, a button rod that is arranged between two pins, a metal sheet that is fixed on the bottom of the button rod and a metal sheet that is connected with Spring between base plates. When the key rod is not subjected to external force, the metal sheet is ele...

AI Technical Summary

Problems solved by technology

During the closing process of the movable plate, if the key rod is subjected to a force perpendicular to the extension direction of the key rod, the key rod will interfere with the pins so that the key rod cannot be pressed down, so that the movable plate cannot be closed and deform under the action of reaction force

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