The touch switch is a modern electronic component switch, which belongs to the category of electronic appliances. Touch switches are widely used in household appliances due to their small size and lightweight, such as video products, digital products, remote controls, communication products, household appliances, security products, toys, computer products, fitness equipment, medical equipment, money detector pens, Laser pointer button, etc. But the touch sensor switch button also has its shortcomings: frequent pressing will make the metal shrapnel fatigue and lose its elasticity and become invalid. So now most electrical buttons are directly replaced by conductive rubber or metal shrapnel for pot switches, such as computer keyboards and remote controls. So the question is, what is the principle of the touch switch? What are its advantages and disadvantages?
Principle of touch switch.
The touch switch is an electronic switch, which can be turned on by lightly pressing the switch button when in use. When the hand is released, the switch is disconnected, and the internal structure is disconnected by the force of the metal shrapnel.
When the voltage is normal, the electromagnetic attraction is sucked into the armature, and the main contact can be closed. When the voltage drops severely or the power is cut off, the armature of the Panasonic air switch is released and the main contact is disconnected. When the power supply voltage returns to normal, it must be shut down again before work to achieve voltage loss protection. The protection of people is also very good.
Advantages of touch switches.
The advantage of the touch switch is that it is suitable for high-density surface installation, some can be cleaned after welding, the seal can be dustproof, it is suitable for harsh environments, and the circuit design is simple. The product life span ranges from 100,000 to 10 million. The product has become a series. But the touch switch also has its disadvantages. Frequent pressing will cause the metal shrapnel to fatigue and lose its elasticity and fail. The touch buttons cannot produce function independently and must be used in conjunction with the PCB circuit board to form a complete turn-on control system.
Disadvantages of touch switches:
1. Touching the touch switch too frequently will cause its metal shrapnel to fatigue and lose its elasticity, leading to the failure of the touch switch. In fact, this is a common problem of electronic switches. Frequent use of any electronic components will accelerate aging.
2. In addition, the touch switch cannot generate functions independently, that is, the touch switch needs the cooperation of other PCB circuit boards to form a complete switch control system.
Author: Written by Ms.Anna Zhang from S4A INDUSTRIAL CO., LIMITED
Factory Address:Building S4A, South Third Lane, Qiuyuling Street, Zhangkeng Village, Hengli Town, Dongguan City, Guangdong Province Office Address:#601,floor 6 ,building 1,JINFANGHUA industrial zone, Bantian St. Longgang Dist. Shenzhen, PRC.
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