Touch switch common trouble
Release time：2018-11-02 Clicks： Click
If your touch switch fails, there may be problems in the following places. We will introduce them in detail below.
Touch switch is basically one of the most common switching elements in our daily life, so there are many details about the use of the switch. If it is not used properly, it will lead to failure. So, do you know the causes of common troubles in tactile switches? I guess you also know little about these aspects of switch. Next, I'll explain to you the analysis of common faults of touch switch.
Common troubles of light touch switch
Common faults 1
It is believed that when you touch the switch lightly, you will usually encounter the condition that the key press is unresponsive. Generally, there are two kinds of problems for this kind of failure. First, it is possible that the force of the key switch is too strong, which leads to the damage of the inductive shrapnel inside the switch, and causes the key switch to be unresponsive in use. Phenomenon. Secondly, it is possible that the internal shrapnel of the switch will be easily oxidized by dampness in the humid environment, so there will be the problem that the switch can be turned on differently or without reaction. Therefore, in the process of using the switch, we should first pay attention to the operation of the key switch, and second, pay attention to the moisture protection measures of the switch.
Common faults two
Generally do not use buttons in the case of wet hands, it is very easy to cause some electric shock accidents. Secondly, if water and gas intrude into the inside of the switch, it is easy to make the components inside the switch become wet and rusty, which will affect the performance of the switch.
Common faults three
After the completion of the welding connection operation, the switch should pay attention to the solidification of the connection points at each end of the switch. Do not touch the connection points of the switch, so as not to easily lead to the disconnection of the switch and lead to unstable welding. Therefore, it is generally necessary to wait for the solder joints of the switch to be completely cooled before the welding condition of the switch can be checked.
Common faults four
In the process of using the switch, it is also easy to appear some key bumps or keys are not moving, which is generally caused by two kinds of failure reasons. First of all, it is possible that in the daily use of the switch, accidentally some small debris fall into the switch, which will lead to the switch shrapnel being stuck by some debris, thus causing the switch keys to bump and press immovably. So just remove the debris inside the switch. On the other hand, the internal shrapnel is damaged due to the excessive force of operating the key switch. Generally, it is only necessary to replace the shrapnel element without replacing the whole switch.
Common faults five
In the welding process of light touch switch, we should pay attention to the fact that the flux should not be too much. Otherwise, it is easy to cause the pin of switch to be welded through, which leads to the unusable situation. Also, after the switch is welded, it is important to remember to remove the solder residue in the terminal terminals of the switch, otherwise it will easily affect the performance of the switch.
The above is about the analysis of common faults in the light touch switch part. The analysis of common faults in the light touch switch part is explained in detail. So these general attention points of switch should not be ignored in use.