Capacitive touch switch with metal material

Abstract

The invention discloses a capacitive touch switch with a metal material. The capacitive touch switch comprises a key circuit, a lower electrode, a diaphragm, a double-sided adhesive layer, an upper electrode and a protective film; a first half groove is formed in the upper end of the key circuit; the lower electrode is arranged in the first half groove; the diaphragm is arranged above the key circuit; the double-faced adhesive layer is arranged between the diaphragm and the key circuit; and a second half groove is formed in one side, close to the lower electrode, of the double-sided adhesive layer. The invention relates to the capacitive touch switch with the metal material. A conductive material covers an electrode of a capacitive key to achieve a triggering function, so that the capacitive switch has a touch sense; when a finger presses a spring piece, deformation of the spring piece causes a distance between the two electrodes to be changed, a capacitance value is increased, charging time of an IC for a parasitic capacitor is shortened, outlet time is changed, a signal is recognized, and the key is triggered; a comrade with visual disturbance can use the switch; and the problemof false triggering or insensitive operation of the capacitive touch switch due to stains and water drops on the surface is solved.

Description

technical field [0001] The invention relates to the technical field of capacitive switches, in particular to capacitive touch switches with metal materials. Background technique [0002] There is no metal covering layer in the traditional capacitive touch switch structure. Moreover, in the environment where there is sewage on the surface or there is a magnetic field around the product, there will be undesirable phenomena such as false triggering or insensitive operation. The problems existing in the existing technology are: [0003] 1: The capacitive touch switch is compounded with a layer of metal covering. The conventional IC chip cannot recognize the capacitance change brought about by the finger touch, and thus cannot respond. How to solve IC and software debugging is very important; [0004] 2: How to design electrodes and select materials to ensure the sensitivity of the product and solve the signal interference problem caused by the shrapnel itself during the produc...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a capacitive touch switch with metal materials in order to solve the above problems, which solves the problems that the existing capacitive touch switch cannot recognize the capacitance change caused by finger touch and is prone to false triggering or insensitive operation. The problem of phenomena

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