What is the impact of high temperature in summer on color LED large screens? LED large screens are used as outdoor advertising screens and are used in many crowded places. We often see outdoor LED large screens installed in buildings and squares. I can't stand it, can the large LED screen withstand the scorching heat, and the result is that the environment is very cruel and I still have to continue working. So how can we make the outdoor LED large screen not be affected by high temperature, maintain a stable operating state for a long time, and prolong its life. First of all, when choosing an LED large screen, we must use better materials, such as power supply, wire, plastic parts, and cooling measures. . The structure of the color LED large screen includes an external screen, internal wiring, plastic kits, external protection, etc.
Because of the complexity of its structure, there is still a lot of work to be done in terms of product fire prevention. The following editor summarizes a few fire prevention knowledge of color LED large screens, hoping to help everyone. 1. Power supply quality: UL-certified power supply products are the best choice for purchasing color LED large-screen power supplies. Their effective conversion rate can ensure the safety and stability of the power supply load, and they can work normally even in hot external environments. 2. Wire quality: In most color LED large-screen applications, the larger the unit area of the display, the greater the power consumption, and the higher the requirements for the stability of the wire.
Among many wire products, the use of wires that meet the requirements of the national standard can ensure their safety and stability. There are three requirements: the tolerance of the cross-sectional area of the wire core is within the standard range, the wire core is a conductive carrier of copper wire, and the insulation of the rubber covering the wire core Compared with the general copper-clad aluminum wire core, the wire core cross-sectional area is small, and the insulation rubber level is not enough, the electrical performance is more stable and the short circuit is not easy to occur. 3. Plastic kit: The plastic kit of the color LED large screen is mainly the material used for the bottom shell of the unit module mask. The main raw material is PC+glass fiber material with flame retardant function, which not only has flame retardant function, but also can not deform, brittle and crack under high and low temperature and long-term use, and it can be used in combination with glue with good sealing performance , It can effectively prevent the rainwater from the external environment from penetrating into the interior and cause a short circuit to cause a fire.
4. External protective structure materials for color LED large screens: Most of the LED screen products with higher fire ratings on the market are made of fire-resistant aluminum-plastic panels, which have excellent fire resistance, strong fire resistance and flame retardancy, and the oxygen aging performance of special core materials is also good. Very strong, melting point temperature 135°C, decomposition temperature ≥ 300°C, environmental performance, low smoke and halogen-free, in line with SGS flame retardancy B-S1, d0, t0, reference use standard UL94, GB/8624-2006. The aluminum-plastic panels of general outdoor LED screens age quickly with the impact of high temperature and rain, so that in relatively humid climate seasons, rain and dew can easily penetrate into the screen body, causing short circuits of electronic components and causing fires. The above is the common sense of fire prevention of color LED large screen, I hope it can be helpful to you.