How to repair common failure problems of light contact switch?

Publish Time:2023-02-21 Author:jiaxi Views:1292

About welding light Tact Switch false solder processing method

　　In the light contact switch welding, some technical personnel often due to improper operation leads to welding on the switch caused by false solder and other problems, then for how to prevent these false solder and other problems of the method? First of all, we must apply some solder paste between the various pins of the switch, after the four pins are coated, at this time, each corner of the switch also add some solder, you can use tweezers to hold the switch key to take the soldering iron for welding. This operation for the switch welding can greatly reduce the problem of false solder. But the point to note is that when welding, to keep the switch at the pins whether there is no debris and other things, such as remember to clean up, so as to avoid the same in the welding of these problems such as false solder.
About the tactile switch key convex trap processing method

　　For the daily use of the light touch switch, I believe that we will often encounter problems such as the switch key convexity down, then the switch key convexity and other issues how to deal with it? First of all, we understand that the main cause of the switch key convexity, may be due to the operation of the keys too strong or frequent key switch is to make the switch internal membrane rupture led to the loss of elasticity of the switch metal shrapnel, so it will cause the key convexity down. The switch key convexity and other problems, you can remove the light touch switch to replace a membrane. For the future use of the switch, the key strength should be careful not to be too large.

About the light touch switch contact poor handling methods

　　In the daily use of light touch switch, most of them are exposed to the air, plus in some humid weather use, the switch's internal metal shrapnel is easy to be oxidized, for after the contact will be greatly weakened, resulting in light touch switch will cause some poor contact and other problems, then the method of dealing with poor contact switch is, first of all, disassemble the switch, then you will find the switch's metal shrapnel On some black spots, that is the effect of internal oxidation, you can use a knife to shrapnel scraping bright or can also choose to replace the metal shrapnel components of the switch, to be completed, you can play in the switch on the metal shrapnel glue fixed, and then assembled on the switch, the operation method can solve the switch poor contact and other problems.

　　2. For light contact switch poor contact and other issues, in the switch used for a long time, the internal will accumulate a certain amount of dust, the accumulated dust is too large, it will also lead to the use of the switch will appear some poor contact and other phenomena, the poor contact and other phenomena processing method is, first of all, the switch disassembled, and then the switch internal shrapnel and the substrate has dust and other places need to be clean, to be all After processing clean, in accordance with the original order to install the switch on the line.

Notes on the use of light contact switches

　　In the use of light touch switch, we should pay attention to not let some water drops or water gas and other things invade the switch, although the current light touch switch has a waterproof type, but still can not avoid the invasion of some water gas, because the light touch switch relies on the internal metal shrapnel and conductive parts of contact to complete the work, and when the metal shrapnel encounter water gas and other things in contact, it will be easier to oxidation, resulting in the conductive function of the switch It may fail, or there is some short circuit and so on. Therefore, the switch should avoid the intrusion of water and gas.