The key switch is turned on and off by pressing the handle to press the internal hardware shrapnel. This pressing process is called the stroke, which is the distance between the shrapnel and the gun point. The second hand that is pressed is called the lifespan. At present, the lifespan of this switch is 10W times. We often tell you that the key to the life of a key switch is its shrapnel. The material and precision of the shrapnel are one of the important factors affecting the life and also the feel. So is our lifespan judged by the quality of the shrapnel? Obviously not, the material we choose is just a theory, and the actual use is still based on our test results.
First of all, we first fix the key switch on the panel of the machine, then adjust the weight to set the life times, and measure the life times again. Check the continuity and feel of the switch. Life test standard: The weight of the weight is twice the force of the switch. Press the switch at a frequency of 30-40 times per minute. After testing the mechanical performance, start to test the electrical performance of the switch. If the resistance is higher than 30m ohms after the test, it is judged to be bad, and it is judged to be good anyway; after the life test, it is also necessary to test whether the switch can be turned on and pressed, and whether the hand feel is maintained well. A good key switch manufacturer must undergo a life test for each batch of switches to ensure the stability of the switch.
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.
