How to use the ball switch is more stable and safe. How to use the ball switch. How to use the ball switch. What is the ball switch. Ball switch solution. Ball switch solution. Ball switch analysis. Ball switch description
Currently, many electronic products use ball switches. Generally speaking, the usage is as follows
1. For the swaying switch: The switch itself is directional. When the product sways, the ball rolls back and forth in the tube to generate the signal of the switch, thus triggering the circuit. This type of IC design generally requires two shots to be triggered back and forth to generate only one action. The switch is placed in the normally-on or normally-on state, and the product does not trigger. This type of use does not require very high switching requirements. Generally, a single bead switch such as the SW-200 can be used.
2. For alarm switch: Install the switch at a certain angle during installation. The switch is already in the ON state. When the vibration is received, the ball will slightly jump in the tube body, which will generate a flashing signal, thus triggering the product action. When used in this way, the sensitivity is quite high, and there are many anti-theft products used, but the IC should be set accordingly to avoid being too sensitive and causing false triggering.
3, for angle change application: This type of use requires higher switch, generally requires 15 degrees of product tilting in one direction, some guests make it always pass when using the ball switch, in the other direction When the tilt is turned off, the trigger action is generated. This type of assembly is the most undesirable. Because the ball switch is not as stable as the mercury switch in the normal state, it will be flashed when moved, thunder and other factors, and it is easy to cause false triggering. In the installation, the switch should be disconnected, and the tilting conduction will trigger the action, so that the switch product will be more stable and the service life will be longer. For example, two-way angle sensing uses two switches or SW-460DD and SW-200DD type with dual-conduction (a related case: there is a customer who is doing digital photo frame, he has a product like this. The function is normal. If the product is reversed, the music will be timed and the screen will be automatically flipped. At that time, he chose the company's SW-300DA to install one. Usually the product switch is disconnected, and there is no problem at this time. When the switch is turned on, the switch is turned on and the product moves. At this time, the problem comes. Because the product is pronounced, the vibration force is not small, the ball is constantly beating, and the result is a flashing phenomenon. The guest's digital photo frame screen is always bounced. The product can not be used. What should I do? Later, our company proposed a plan: use two switches, one positive and one reverse, one one open and the other open, then the picture does not move, the other one pass Open circuit, there is no music, the IC settings will not flip until another switch produces a turn-on signal. The vibration of the music is not so large that it will turn on the non-conducting switch, so the problem is solved satisfactorily. , Indoor use product performance is very stable!)
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