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Current path problem of 4x4 touch switch

Release time:2018-10-04    Clicks: Click

 
Let's introduce the current path problem of 4x4 touch switch. We must be clear about several definitions.
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4x4 light touch switch can be divided into low-voltage plastic case key switch and low-voltage frame key switch, the former is used for low-voltage small current, the latter is used for low-voltage large current, the low-voltage plastic case circuit breaker commonly known as automatic key switch.
Several definitions of 4x4 tactile switch in Chinese national standard GB14048.2:
1. Circuit Breaker: A mechanical switching apparatus that can turn on, load and break the current under normal conditions, and can also turn on, load and break the current under specified abnormal circuits (such as short circuits).
2. Plastic case circuit breaker: A circuit breaker with a shell made of molded insulating material as the integral part of the circuit breaker.
3. Air circuit breaker: circuit breaker with interruption and closing of air at atmospheric pressure.
4, easy to use and safe. The product can be easily opened or closed for easy use, and can not significantly hinder the movement or movement of people or objects in the building when opening and closing. And should be able to clean and clean the floor. Ground sockets should have different protection levels to adapt to different requirements of the use of the environment to ensure the safe use of users. 4x4 touch switch supply
4x4 light touch switch is widely used in many fields, such as household appliances, because of its small size, long life, light touch and so on. And with the continuous improvement of people's living standards, the replacement of these household appliances is more and more rapid, the number of its needs will be more and more large, which is also our optimistic about its development prospects of the greatest potential direction.
4x4 light touch switch reset after power off, that is, the locking mechanism should work in power related, the finished product seems not, because the requirements can be achieved by using a general button switch and relay circuit;
But if only one relay (or contactor) is used, a set of normally open contacts are used to control the power supply of the working coil of the relay (contactor), the weighing iron of the relay is used as a switch button, and after pressing the weighing iron, the contacts of the control coil of the relay are closed, the coil is energized, the relay maintains the suction (self-locking), and the rest are contacted. Control other lines.
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