Button accessory

Abstract

A button accessory comprises a shell, a pressing key and an elastic mechanism, the pressing key is arranged in the shell, the elastic mechanism is arranged between the pressing key and the bottom of the shell, and the elastic mechanism generates elastic force on the pressing key to assist in resetting the pressing key; the elastic mechanism comprises a spring, an upper torsion disc and a lower torsion disc, the upper end of the spring is fixedly connected with the upper torsion disc, the lower end is fixedly connected with the lower torsion disc, the top surface of the upper torsion disc is rotationally connected with the bottom surface of the pressing key, and the bottom surface of the lower torsion disc is connected with the top surface of the base at the bottom of the shell. The upper torsion disc enables the spring to be rotatably connected with the pressing key, so that the rotational degrees of freedom of the two ends of the spring in the compression process are not limited, andthe spring can rotate under the condition of torque without deformation; according to the technical scheme, through rotary connection of the two ends of the spring, non-elastic deformation of the spring due to torque can be avoided, the service life of the spring and the button accessory is prolonged, and the button is worthy of wide popularization.

Description

technical field [0001] The invention relates to a switch component, in particular to a button accessory. Background technique [0002] The simplest switch has two metals that are called " contacts ", and electric current is formed circuit when two contacts contact, and electric current opens circuit when two contacts do not contact. When selecting the contact metal, it is necessary to consider its corrosion resistance, because most metals will form insulating oxides after oxidation, making the contact unable to work normally. The selection of contact metal also needs to consider factors such as its conductivity, hardness, mechanical strength, cost, and whether it is toxic. Contacts are sometimes plated with corrosion resistant metal. It is generally plated on the contact surface of the contact to avoid affecting its performance due to oxides. Sometimes non-metallic conductive materials, such as conductive plastics, are also used on the contact surface. In addition to the...

AI Technical Summary

Problems solved by technology

The push-button switches in the prior art are mostly equipped with compression springs as the rebound mechanism. The compression springs are designed to bear axial loads and produce axial shrinkage deformation. However, in actual push-button switches, the springs are not only subjected to axial loads. The factors of unbalance and eccentric bending of the spring cause the spring to be subjected to torque, which is prone to inelastic deformation, especially for long-travel buttons

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