The emergence of the toggle switch, convenient for everyone, can easily open all kinds of circuits, at the same time, there are many applications on the mobile phone, so we need to give you a detailed introduction, please ask you to work hard on these issues.
The embodiment of the utility model discloses a toggle switch device, which comprises a shell of a toggle key, a toggle switch and an electronic device for installing a toggle key. The shell of the electronic device is provided with an installation hole. A rib bar is projected on the inner wall of the shell corresponding to the location of the installation hole. A snap button is arranged on the rib bar. The toggle key includes an operation part, an installation part and a toggle part. The opening of one side of the toggle part is U-shaped. Shape. The utility model improves the uniformity of the matching clearance between the dial key and the nested shell, improves the appearance grade, improves the assembly sequence and the assembly method, improves the assembly efficiency, reduces the cost, reduces the bad rate of assembly, and improves the reliability of the dial key.
It consists of an interconnected shell and a base cover. The cavity formed by the shell and the base cover is surrounded by a pusher, a contact bridge and a terminal. The contact bridge is an elastic metal contact bridge formed as a whole. Because the conductive conversion part of the switch is directly connected with an elastic metal contact bridge, the original contact bridge and elastic elements are combined into one. Generally, the elastic elements are springs or elastic fragments. The industry most dependent on the light touch switch and the switch is the toy industry, which simplifies the installation procedure and makes the assembly of the contact bridge and elastic elements more complicated in the assembly process. In addition, the elastic metal contact bridge, as an integral metal part, has better robustness than the traditional structure of elastic element matching with the contact bridge, and can withstand repeated use for a long time without failure or damage.
Similarly, with PC materials, many switch manufacturers use domestic products (even if the standard is GE, which is actually made by domestic cooperative factories, only sold by GE). At present, there is no domestic company capable of producing PC materials. The so-called domestic products are generally re-processed with recycled materials, so impurities are relatively high, will be very brittle, and heat resistance is obviously not good. Poor switches may be replaced by mixtures or ABS in order to reduce the cost of front panels. These materials not only have poor impact resistance and heat resistance, but also are prone to discoloration and rough surfaces when touched more.
Turn the switch first to look at the shell material. The main switch brands in the market generally choose PC materials, PC materials also known as bullet-proof glue, impact resistance, high temperature resistance, non-discoloration characteristics for the control of electrical switches is very important. Better switch front panel and back base are made of PC material, while the general switch will replace PC material with black nylon material on the base, so the cost can be reduced a lot.
Secondly, the contact point is the contact point of conductive parts in the process of switching. Contacts depend on size (the bigger the better) and material. At present, there are three main types of contacts: silver-nickel alloy, silver-cadmium alloy and pure silver. Silver-nickel alloy is an ideal contact material at present. It has good electrical conductivity, hardness and is not easy to oxidize and rust.
Silver-cadmium alloy contacts are also good in other aspects, but cadmium belongs to heavy metals. On the one hand, cadmium is harmful to human body, on the other hand, silver fusion is not ideal. Cadmium metal particles will form on the surface of contacts. When conducting electricity, arcs may be pulled out. Selection of basic computer knowledge.
Pure silver is not suitable for contacts. It has good electrical conductivity, but it is soft and easy to oxidize (like silver jewelry will turn black after a long time). Soft texture, more contacts on the switch will deform; oxidation rust, the conductivity will be much worse, rust is easy to heat, it is easy to burn contacts.
Above is the detailed content of the switch, improving the quality and overall quality is very critical.
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