What are the cooling methods of LED large screen?
2020-05-25 21:14:22
LED electronic screen generates heat in the process of use, especially the outdoor LED electronic screen has high requirements for the use environment. When it exceeds 4000cd, it generates a very large amount of heat. Increasing the heat release of LED electronic screen in actual use can not only effectively improve the heat dissipation efficiency of LED electronic screen, but also achieve energy-saving effect, which helps to improve the service life of LED electronic screen and ensure the reliability of LED electronic screen The performance of the screen. This paper introduces 7 kinds of LED display heat dissipation methods!
There are seven ways to improve the cooling effect of LED display screen
1. Fan cooling, lamp shell internal long life, high efficiency fan to strengthen the general method of cooling, this method is low cost, good effect.
2. The most common cooling method using aluminum fins is to use aluminum fins as part of the shell to increase the cooling area.
3. Thermal conductivity integration – high thermal conductivity ceramics, lamp shell heat dissipation to reduce the working temperature of LED high-definition display chip, and the thermal expansion coefficient of LED chip is quite different from that of metal, so it is not possible to directly weld LED chip to prevent high temperature and low thermal stress from damaging LED display chip.
4. Heat transfer tube cooling, using heat transfer tube technology, the LED display chip heat transfer to the shell heat pin plate.
5. The heat dissipation enhancement method of making convective air by using air hydrodynamics and equal sheet shape.
6. Surface radiation heat treatment, lamp shell surface radiation heat treatment, easier is radiation heat paint, lamp shell surface radiation heat method.
7. Thermal conductive plastic shell. The plastic shell is filled with thermal conductive material during injection molding, and the heat dissipation of the plastic shell is increased
