Anti-dumping switch related knowledge

- Oct 31, 2018-

Anti-dump switch: also called bead switch, ball switch, ball switch, tilt switch, ball switch, reverse switch, angle sensor. It mainly uses the ball to change with different tilt angles in the switch to achieve the purpose of the trigger circuit.


At present, the commonly used models for anti-dumping switches in the market are JS-785A, etc. These switches are not like the traditional mercury switches, and they have the same function as mercury switches, but there is no environmental protection and safety problems of the mercury switches. Mainly used in some electronic products that need to sense the change in tilt angle.


Because the anti-tip switch is triggered by the rolling collision of the metal ball, the slight movement of the ball in the conduction state will produce an undetectable flashing. Generally, the working current is not available, and only the low current is turned on to trigger. IC, so as to avoid the occurrence of poor contact due to flashing. Most ball switches only sense on/off signals in both directions, such as left and right, front and back, and up and down. Some models of ball switches are specially designed to achieve omnidirectional or multi-directional tilt signals, such as: a switch placed vertically, tilting a certain angle to any angle


Degrees can be turned on.


Some customers also use the anti-dump switch as a vibration switch. By shaking and rolling the ball in the tube to trigger the pin, the IC is triggered. And have a certain direction. Because the anti-tip switch can be "on and off" in two states, if the switch is in the on state, such as being moved or vibrated, the switch generates an instantaneous flashing signal to trigger the IC to achieve the purpose of inductive vibration.