Principle and Application of Wiring Method of Four-legged Light Contact Switch
Release time：2019-10-12 Clicks： Click
How should the four-legged touch switch be connected? What is the specific connection method? Let's give you a detailed introduction.
The tap switch is used to exert a certain amount of force, so that the switch has the function of opening and closing. The commonly used thing is to tap the switch with four feet, and the press force is about 100gf to 300gf. When the press pressure is not pressed to cancel, most of the four foot switches will rebound, except for the functional requirements of some devices, there will be self-locking. Four-legged touch is a way to switch on and off signals through the structure of internal metal shrapnel. For many manufacturers, after getting the switch, they don't know how to connect the four-legged switch. The following is a summary of the knowledge of the four-legged touch switch, so that you can fully understand the relevant knowledge of the four-legged switch, and then naturally understand how to connect the four-legged switch.
The working principle of four-legged touch switch:
The working principle of light touch switch is very similar to that of conventional key switch. It is composed of normally open contacts and normally closed contacts. In four-legged light touch switch, the function of often open contacts is that when the pressure is applied to the normally open contacts, the circuit will be turned on; when the pressure is removed, the original normally closed contacts, i.e. the so-called disconnection, will be restored. This pressure is the action of opening and closing the button with our hands. When the pressure is withdrawn, the four-legged lightly touching switch will be closed. The internal structure of the four-legged lightly touching switch relies on metal shrapnel to protect the stress situation and realize the connection and disconnection. Below is the structure diagram of the four-legged touch switch:
Specification model of four-legged touch switch:
Under different products and functions, there are many types and classified series of products. There are many series just by the combination of length and width, such as 4*4 series, 6*6 series, 8*8 series, 10*10 series and so on. There are also light touch switches with waterproof and non-waterproof functions. At the same time, there are many kinds of switches with different heights, ranging from 0.4 cm to 5 cm. At the same time, different materials can also be divided into many categories, such as silver plating, gold plating, copper and so on, as well as patch type, many types.
Product application of four-legged touch switch:
This basic can be widely used, such as electric wind, microwave oven, TV, electronic fat scale, rice cooker and electronic kitchen scale in household appliances; monitor in security products, visual walkie-talkie; recording pen and camera in computer; call system in medical equipment, blood pressure meter, thermometer, massage chair and running machine in fitness equipment, etc. In these areas, four-legged touch switches are used.
Wiring of four-legged touch switch:
The four-legged key switch is a kind of thing with the touch switch and the six-legged switch we usually use. The four-legged key switch can not lock itself, but when pressed once, the signal will jump. When not pressed, only two sets of pins are connected. After pressed, four pins are connected together.