2018年1月16日星期二

How to improve heat dissipation of LED display screen

In practical using, improving the heat dissipation for LED display not only effectively increases heat dissipation but also achieves power - saving effect, which are more conducive to improving the service life of LED display screen. Here are 7 tips to improve heat dissipation of Led display screen.
1. Using fans to heat dissipation. The internal lamps adopt long lifespan fans to strengthen the heating dissipation. This is a common method and it is low cost, more efficiency.
2. Using aluminum fin heat dissipation. This is the most common way to heat dissipation, use aluminum cooling fins as part of the shell to increase the thermal area.
3. Using the theory of air fluid dynamics. Adopting the light hull shape to producing convection air, which is the lowest - cost way to strengthen the heat sink.
4. Surface radiation heat treatment, is a relatively simple application of radiation thermal paint, you can heat radiation from the surface of the lamp shell.
5. Thermal Conductivity of thermal integration--Application of ceramics with high thermal conductivity. LED lamp shell heat sink is aim to reduce the HD chip temperature. Owing to LED chip expansion coefficient has great difference with mental expansion coefficient and expansion coefficient of heat-sink materials, so LED chips cannot be welded directly to avoid high and low temperature thermal stress damaged LED display chips.
6. Using heat pipe for heat dissipation. Adopt heat pipe Technology, guiding the heat of LED display chips to shell cooling fins.
7. Making thermal conductivity in plastic case, filling thermal interface material at the time of injection molding so as to increase the heat conductive & cooling capability of plastic shells. 

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