Home > Knowledge > Content

Balance of Moisture and Heat Dissipation of Outdoor LED

Apr 22, 2020

Balance of Moisture and Heat Dissipation of Outdoor LED

Humidity and high temperature make the LED screen moisture-proof and heat-dissipating. How to do a good job of preventing moisture in rainy weather, while maintaining good heat dissipation in a high temperature environment, has become a difficult problem for outdoor LED screens.

Moisture and heat dissipation, a pair of natural contradictions


The LED display internal devices are MSD components (humidity sensitive devices). Once moisture enters, it may cause oxidation and corrosion of zero components such as lamp beads, PCB boards, power supplies, and power cords, which may cause dead lamp failure. Therefore, the module, internal structure and external chassis of the LED screen need to have a comprehensive and strict moisture-proof and waterproof design.


At the same time, the internal components of the LED screen are also the most popular electronic components, such as LED lamp beads, driver ICs, switching power supplies, and so on. Poor heat dissipation design will oxidize the screen material, affecting quality and life. If the heat accumulates and cannot escape, it will cause the internal components of the LED to overheat and be damaged, which will cause failure. Therefore, good heat dissipation requires a transparent and convective structure, which contradicts the requirements for moisture resistance.

High temperature, damp heat, how to achieve a two-pronged approach.


In the humid and hot weather, facing the moisture and heat dissipation, this seemingly irreconcilable contradiction can actually be solved ingeniously through superb hardware and careful structural design.


First, reducing power consumption and reducing heat loss is an effective way to improve heat dissipation.


Furthermore, improving module production technology is also a top priority.

Finally, rational optimization of the box structure can play a key role. Considering the heat dissipation and oxidation resistance of the case material, select high-quality aluminum. The interior of the case uses a multi-layered space structure to form an overall transparent convection heat dissipation structure, which can make full use of natural air for convection heat dissipation, taking into account both heat dissipation and sealing and also improves reliability and service life