The waterproof tact switch is a very popular switch on the market now, and it is deeply loved and trusted by consumers in the market. So do you know what a tact switch is? What is its principle? Here I can give you the details Let me introduce it so you can see it for yourself.
The waterproof tact switch is a switch that will not fail even if it is immersed in water or rain. Usually, the waterproof switch is rated IP67, which means that it can protect against dust in the air. It can be kept under water at a depth of about 1 meter at room temperature for 30 minutes without being damaged. Therefore, it is well used in some wet places that need to use waterproof switches.
The tact switch is actually an electronic switch. In the process of use, the pressure is applied to the operating direction of the switch to achieve the condition of the operating force to achieve the closing and switching of the switch. When the pressure is removed, the switch will be automatically disconnected, and its internal The structure is closed and connected by relying on the change in the hand of the metal dome. Tact switches are usually composed of inserts, bases, shrapnel, buttons and cover plates, etc. Among them, waterproof tact switches are made by adding a layer of polyimide film to the shrapnel.
Tact switches are widely used in the market because of their small size, low resistance, good feel when pressed, and complete types and sizes. Like some automobile industry, information industry. Home appliances, medical equipment, monitoring and other industries have been applied.
The principle of the tact switch is to make the internal shrapnel contact the three-point hardware at the bottom by touching the switch button to turn on the switch. Once the button is manually opened, the switch will be disconnected immediately. We can know that the internal structure of the tact switch is It is connected and disconnected by the force of the metal shrapnel.
There are still some things that we need to pay attention to when using the tact switch. When we solder the terminals of the tact switch, if a load is applied to the terminals, loosening, deformation and deterioration of electrical characteristics may occur due to various conditions, so we need to pay attention when using them. When welding twice, it should be carried out after the first welding part returns to normal temperature, otherwise continuous heating will easily cause external deformation and terminals to loosen, fall off, or reduce electrical characteristics. When we operate the switch, we must operate it directly by people, and do not use any mechanical detection function. Otherwise, it will easily cause damage to the switch if a load is applied during the operation of the switch.
The above is the introduction to the waterproof tact switch. I hope it will be helpful to you.