Pot pieces (also known as metal spring pieces or metal dome, snap dome) are made of thin (0.05mm-0.1mm thick) and extra thick (generally high strength) stainless steel plates. The pot piece is a key component of the power switch. Pot chip is mainly used in film switch, touch power switch, PCB board, FPC board, medical equipment and other commodities. The pot piece is a pet piece including metal shrapnel (pot piece). It is used on PCB or FPC and other PCB circuit boards as a power switch application. It has the effect of a key hand feeling power switch between the user and the instrument. Compared with traditional silicone keys, membrane switches have stronger touch and longer service life, and can indirectly improve the productivity of various types of power switches using conductive films.

Principle of pot piece: the metal spring piece on the membrane switch is located at the conductive position on the PCB board (the vast majority is located on the top of the red gold finger on the PCB circuit board). When it is slightly damaged, the positioning point of the spring piece is concave and touches the route on the PCB, resulting in a control circuit. According to the amount of current, all goods are in normal operation.

Generally, the basic pot pieces are divided into annular pot pieces, cross pot pieces, triangular pot pieces and oval pot pieces according to their different appearance. The diameter ranges from 3mm to 20mm, and the range ranges from 100g to 600gf. Through the continuous diligence of our R & D personnel, the service life of metal shrapnel has been greatly improved. Generally, it can achieve a service life of one million. According to the regulations of customers on the resistance value, our metal shrapnel also has various surface treatments such as nickel plating, gold plating, gold plating and so on.

I don't know. Have you ever met in your daily life? In fact, in social life, pot slices are ubiquitous, such as your mobile phone keyboard and the function keys of the electric cooker for cooking. All of these are pot slices that function as a power switch.

Application fields of pot products: mobile phones, virtual phones, U shield of financial institutions, car anti-theft devices, children's learning machines, MP3 / MP4, CD / DVD, digital cameras, remote control Qi devices, sky phones, telephones, liquid crystal displays and other digital technologies, small appliances and data products.