How to use the key switch:
1. The types and specifications of key switches are different, and the functional characteristics of each switch with different specifications are also quite different. If the key switch is randomly applied to products with different specifications, it may cause incompatibility with each other. When used, the key operation will be insensitive, and the switch will easily be damaged. Therefore, the key switch must be adapted to the product when applied, and it will be handy only when the specifications match.
2. At present, most of the conventional key switches have high sensitivity to induction. Therefore, when the key switch is used, it is necessary to pay more attention to the operation and squeeze the force should not be too large, otherwise it will cause the phenomenon of stuck when the switch is pressed, and the later Will reduce the tactile sensitivity of the switch.
3. The key switch should also avoid pressing the switch too frequently, otherwise, the internal shrapnel components of the switch will be easily damaged, and the sensitivity of the shrapnel will also decrease. In fact, every time the switch is pressed, the internal shrapnel will wear to a certain extent. When a certain wear resistance limit of the switch is reached, the life of the switch is also called the end. Therefore, during daily use, you should avoid using the switch as a toy and pressing it repeatedly.
4. When using the switch button in daily life, it is necessary to pay attention to the existence of water droplets on the surface of the button. Once the water vapor flows into the inside of the switch, it will not only affect the sensitivity of the shrapnel, but also may cause short-circuit leakage, and the human body is not careful. Contact may cause safety accidents such as electric shock. Therefore, it is forbidden to touch the switch with wet hands to avoid contact with water vapor.
The key switch is the fourth-generation switch product developed with the development of electronic technology. The earliest volume is 12mm*12mm, 8mm*8mm, and now it is 6mm*6mm.
There are three types of product structures: vertical type, horizontal type and horizontal type with ground end. Now there are two types of combination type (3M, 4M, SM, 6M, SM) and potentiometer key switch combination, which meet the requirements of various domestic electronic products. Now there is the fifth generation switch-membrane switch, the function is the same as that of the key switch, it is mainly used in electronic instruments and CNC machine tools, but the resistance is large and the hand feel is poor. In order to overcome the phenomenon of poor hand feel, there are also contact reeds installed in the membrane switch instead of using the silver layer as the contact point. So What should I pay attention to when using key switches?
1.When soldering the terminals of the key switch, do not apply Too much force load, so as not to cause loosening, deformation and the possibility of reducing electrical properties. In addition, during welding, be careful not to connect the wiring of the switch incorrectly, so as not to connect wrongly, which will cause failures such as unusability or short circuit.
2. After multiple welding of the key switch, it should be noted that each welding part must wait for the return to normal temperature before operation. If it is heated continuously, the terminals of the switch may be deformed or welded.
3. Regarding the use of the key switch for a long time, there will definitely be a lot of dust and debris inside, so generally it cannot be washed with water for cleaning, so as not to easily cause the components of the switch to be damp and fail, so it should be possible to use a cotton cloth. Wipe with alcohol.
4. Secondly, for the installation of the key switch with pins, please weld at the pin position. If the welding is performed in the state where the midpoint of the pins of the switch is fixed, the parts of the pins may be deformed.
5. The key switch should not be installed and used in an environment where the surrounding materials emit corrosive gas, otherwise it may cause corrosion of the switch components, thus making the switch unusable. When the switch is installed, it is necessary to ensure that its pins are firm. If it is loose, the current transmission of the pins of the switch will be unstable, which will also lead to the possibility of burning.
