Touch switch is a common component in many electrical appliances. There are many kinds of problems when it is used. If these problems can be solved better, it will play a better role in the use of touch switch.
Touch switch is widely used as a switch, the current electronic industry is unable to leave it, especially the consumption of products is very large. This switch is widely used in computer, audio, headset, mobile phone, Bluetooth equipment, listening machine, telephone, toys, lamps, fax machine, printer, medical equipment, smart watch, smart wearing equipment, laser pen, mouse, keyboard, electromagnetic oven, TV, DVD, bread machine, electric oven, household appliances and other electronic products.
Market usage is so wide that major consumer manufacturers can not be lost. If the quality of switches is often abnormal in the case of rush shipment, it is undoubtedly a great trouble for manufacturers, and the economic losses are incalculable. Therefore, we often say that to believe in the power of the brand, a large light switch manufacturer should be able to control the quality, effectively help customers solve problems, so that our customers have no worries.
As a senior salesman of light touch switch manufacturer, with the problems I have seen and experienced, we believe that with our praise of the strength of the present can be completely handled, we can help customers to control the problems ahead of time, this is what we should do. A good product is one in a hundred, carefully selected, we are doing so now. Next, let me talk about some common problems.
How does the touch switch feel?
Many customers have been responding, many suppliers send samples feel very consistent, but when it comes to mass production feel different. In fact, this problem is very common. We all know that the handle and push force of the switch are controlled by shrapnel. We often say that shrapnel is divided into phosphorus-copper shrapnel and stainless steel shrapnel. At present, many manufacturers choose phosphorus-copper shrapnel in order to save costs. The price performance of phosphorus-copper shrapnel is relatively high, which is also the reason why it is widely used. However, the phosphorus-copper shrapnel will change after the furnace temperature, and the shrinkage is serious, which will lead to bad hand feeling. The use of stainless steel shrapnel will not have this problem, but the cost of stainless steel shrapnel is relatively high, leading many manufacturers to take the risk of choosing phosphorus-copper shrapnel, so when purchasing lightly touch switch, we must ask the next question clearly.
Touch the switch lightly and do not turn on?
Many consumers, in the use of products, often find that the button pressed does not respond, to press very hard, the product has functional response. Because our switches are exposed to the air, many finished products are not sealed, consumer electronic products are required to heat. In wet weather, the shrapnel of the switch is easily oxidized, and the contact performance after oxidation is not as good as before, that is, there is a problem of light press and no conduction. Many consumers have also dismantled the switch and found that there will be a small black spot on the shrapnel, which is the effect of shrapnel oxidation. Therefore, it is suggested that the electronic products we do not normally use should be placed in a relatively dry place and the prepaid electronic parts should be oxidized.
High resistance of light touch switch?
At present, many customers don't know much about the resistance value of the switch. Generally, the resistance value of the switch is controlled below 30m Euro, so the contact performance and life of the switch are very good, but some switches have higher resistance value after furnace temperature and life test. What effect does high resistance have on switches? If the resistance is high, it means that the contact area between the shrapnel and PIN foot of the switch is too small. The contact area is too small to cause the switch to be contacted. Once the switch is not contacted, it will be bad. Therefore, we should be careful about the resistance of the switch, the shrapnel and PIN foot for plating requirements are relatively high, plating resistance will be low. After the life test, the surface of the shrapnel will be worn. If the electroplating is thin, the resistance will be high and the switch will be bad.
Bubble problem of light touch switch?
The main material of this switch is our LCP material. Every time our material supplier comes to the machine after injection, we will have a working procedure. This process is to dry our plastic material, which is also called quenching by the industry. So what is the main purpose of quenching? The purpose of quenching is to dry our plastic materials with moist moisture, using our plastic materials to achieve the drying effect. After quenching, we will proceed to our next step, that is, our injection molding process. Then we will assemble and inspect our products and pack them for shipment.
After so many processes, then why does our light touch switch have the abnormal phenomenon of foaming after the furnace is over? Let's take a look at the photo on our left, our switch blistering is more serious, in fact, the problem is very simple, our SMD process will produce high temperature, LCP material itself is a high temperature resistant product, is also very consistent with SMD process material, the problem is in our first process of quenching, our plastic material in quenching, if not. When the material is completely dried, our plastic material will have a certain moisture content in it and will be processed in the next process without high temperature operation.
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