Slide the switch contacts is no need to use much force can change the state of the switch contacts, so contact capacity is very small, simple structure, after the disappearance of the power switch can only maintain the original state, that is, with a small force can be pressed, there is no single contact point locking button switch, now, membrane switch, micro switch Small switch can count on the structure mostly by printing conductive traces on two film insulated from each other by pushing each other so that the line can be connected or making use of a thin elastic metal butterfly shrapnel, shrapnel pressing the printed circuit.
　　A first base for the pin, pin base switch is brass or phosphor bronze (low level of iron), in order to reduce contact resistance, pin substantially silver-plated, silver in the case of air SO2 gas oxidized, directly affect the switch contact resistance and weldability, so high-quality switching first to be put in place to control the thickness of the silver-plated and silver-plated base workmanship pins.
　　Second, after having parts that ultimately affect the quality of the assembly process, assembly process depends on the production capacity of the company's management, staff quality and meaning and quality assurance capabilities and other factors, different capability out to ensure the quality of the final product certainly different, the market now assembling method There are labor and machine, because the current automation capabilities further enhance, and would therefore have advantages and disadvantages: low machine assembly costs but low-quality products, high labor assembly costs but also high quality.
　　Third, conduction reliability key factor is the structure of the contact point, because in Dongguan switch function is the contact point and shrapnel contact conduction, the contact surface of the contact point so the bigger the better, the contact surface of the structure of the decision, on the market about three class structure, the pros and cons in the following order: big bubble (the crater-type), "O-type contact," Slotted "2-point contact" type bubble level "1-point contact."
　　Fourth, the life and feel are switching itineraries and shrapnel with the decision, the longer the trip, the shorter the life of the lighter sound, longer stroke and vice versa, at a fixed shrapnel craft situation, mainly to see the itinerary or sound decision switch life; In addition, a key factor in the decision shrapnel life or stamping techniques. Therefore, the switch selection is very important. The quality factors switch, the main key is to switch the protective resistance, weldability, conduction reliability, longevity, feel, production processes and installation dimensions and other factors determine