Focus on thin film switches!

Thin film switch is a kind of contact switch made by printing contact circuit with conductive paste on flexible polycarbonate or polyester film. Membrane switch is planar, multi-layer combination, sealed structure, is set key switch, panel function mark, reading display transparent window, indicator window hole and circuit as one of the electronic complete machine operating system assembly. 1, good sealing performance < BR > Because the membrane switch is the overall sealing structure, the switch contacts are not corroded by harmful gases, not easy to oxidize; With waterproof and dustproof characteristics, so more suitable for all kinds of harsh environment. 2, colorful and beautiful appearance < BR > Film switch can be based on the user's design idea, in the design of color pattern embodies the personality, in the decorative effect of the body to show the comprehensive characteristics of the beauty of material, decoration and process. 3, small size, light weight and reliable structure < br > membrane switch keyboard in the design of permutation and combination into film, its setting density is big, and it is made up by multilayer film sealed chip type structure, all cables between switches and lead by screen printing is one-time completed, the total thickness in 1 ~ 3 mm, narrow the volume, therefore, reduce the quality, improve the reliability. 4, reduce the supporting cost of mechanical and electrical products < BR > Traditional mechanical switch, in the installation of the need for welding, especially with a fixed bracket; The installation of the film switch is paste type, as long as the back adhesive paper is removed, it can be firmly stuck on the surface of the machine, and the lead outlet is inserted into the socket of the rear circuit of the machine, and the circuit can be connected instantly. 5. Durability < BR > The life of the film switch can generally reach more than one million times, the reason for such a long life, is because the switch action is only by the vertical direction of the elastic film elastic movement to achieve; Although the elastic film after millions of peristalsis, but because of the creep amplitude is very small, only 0.1~0.3mm (both switching stroke), in addition to the rationality of material selection, far from reaching the yield limit of the film, so the film material can withstand more than one million times of life without deformation; On the other hand, the switch contact is vertical contact, wear is very small; And screen printing contacts can form enough thickness, and in the silver paste contact in the printing of a layer of conductive carbon, in order to achieve high wear resistance, self-lubrication, so the life of the film switch, than the mechanical contact switch tens of times more than.