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Analysis of the Specific Function and Fault Cause of Light Touch Switch

Release time:2019-08-17    Clicks: Click

 
The specific role and use of light touch switch to introduce to you, in the use of some problems, what are the reasons, are analyzed.
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Switch is very common in our life. It can control the opening and stopping of various electrical equipment for us. Touch switch is actually a key switch. It is widely used in our TV sets, computers and other household appliances. Applying pressure on the switch can achieve the switch control of electrical appliances. Often convenient, but many people do not know much about it, so how does such a small switch work in the circuit? Next, I will briefly introduce the knowledge of touch switch circuit for you.
With the development of various electrical appliances, the demand for touch switches in our country is also growing. The most widely used areas are various digital electronic products and instruments. For example, there are six on our TV sets, and a set of combined audio needs 20 touch switches.
Touch switch is very different from traditional switch. It is only an electrical component. It must be combined with the corresponding electronic products to play its role. In most cases, it is assembled in the product and is not easy to see, but it is essential for the use of electrical appliances.
Light-touch switch is generally composed of normal open contacts and normal closed contacts. When it is considered that the normal open contacts are tested, the light-touch switch circuit will be turned on, and the pressure revocation will return to the normal closed contacts, thus realizing the circuit disconnection. Since the light-touch switch has such a great effect on us, it must be guaranteed. Selected product quality can be a good trial experience, then how to select a high-quality touch switch?
First of all, from the pin base material, the high quality light touch switch is brass or phosphorus copper. In order to reduce the contact resistance, the pin will be silver plated, which will directly affect the solderability and contact resistance of the switch.
The contact structure of the switch is a very key structure, because the light touch switch is to control the electrical appliances through these contact points. Generally speaking, the larger the contact surface is, the better the contact surface is. The contact surface is determined by the structure of the switch. There are three kinds of structures in the market. The best one is "O-type contact" and the second one is "2-point contact". Touch and 1-point contact are relatively poor.
As you know, many switches will become insensitive or even unusable after long-term use. The service life of light-touch switches is mainly determined by travel and shrapnel. The shorter the service life is, the longer the service life is. In fact, these internal structures are not easy to inspect. The cost can be intuitively seen from the appearance and quality certificates of products. Quality should be considered in hand feeling and other aspects.
Through the above introduction, we can know that touch switch circuit is very common in our life, this switch for our very good control of electrical equipment has a great role, if you need to purchase must ensure quality, I hope these contents will help you.
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