Detailed explanation of wiring method of light touch switch
Release time：2018-11-26 Clicks： Click
Lightly touch switch upgrade, installation is simple, wiring is relatively easy, specific wiring methods we will introduce in detail below.
Touch switch is an electronic component switch that we often need to use in modern life. We often say that four-legged touch switch has four feet on the switch. This kind of switch is widely used, especially in household appliances such as remote control, audio-visual products, communication products, digital products, toys and so on. 。 So do you know about the touch switch, its principle and how to connect it? Next, we can give you a detailed introduction of its related knowledge.
Touch switches, also known as button switches, first appeared in Japan. In order to satisfy the operating conditions, when using the light touch switch, it is necessary to apply pressure to the switch, so as to realize the function of switching on and off. When we remove the pressure, the switch will be disconnected by touching it lightly. The internal structure of the light touch switch relies on metal shrapnel to protect the force and realize the function of switching on and off.
The principle of light touch switch is relatively simple. When we press the button of light touch switch, its shrapnel will be deformed by elastic force and contact the welding strip downward, and successfully connect the four pins in the switch, thus realizing the circuit connection. When we evacuate the external force, the shrapnel will return to its original state, and the pins will not be connected, so the circuit will be in a closed state.
How to connect the light touch switch? There will be three wires in total. The fire wire is connected to the switch. The other end of the switch is connected to the L end of the two-hole and three-hole socket. The neutral line is directly connected with the N end of the two-hole and three-hole socket, and the other grounding line is connected with the three-hole grounding end. The correct connection is that L is the power supply line, L1 and L2 are double-controlled reciprocating lines, and N is the zero line.
When welding the terminals of the light touch switch, if the load is increased on the terminals, it will be loosened, deformed or the electrical characteristics will deteriorate due to different conditions, which needs our attention. When using the circuit board, the welding conditions need to be confirmed before because the influence of thermal stress will change. In the process of two welding, we need to do the second welding after the first welding reaches the normal temperature. Otherwise, continuous heating may cause deformation in the periphery, resulting in loosening of terminals, falling off and deterioration of electrical characteristics. This kind of switch is used for people to operate directly, not for mechanical detection function.
We should pay attention to the quality of the switch when we select the light touch switch, which will directly affect the use of the product. So we should pay attention to its solderability, fireproof, conduction and other properties when selecting the switch. The quality of the switch is also determined by its service life and touch.
The above is to introduce you how to connect the light touch switch and some related knowledge, you can see.
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