How to do a good job of LED display moisture and heat dissipation?
Jul 13, 2021
Moistureproof and heat dissipation, a pair of natural contradictions：
The internal devices of LED display belong to MSD components (humidity sensitive devices). Once moisture enters, it may cause oxidation and corrosion of zero devices such as lamp beads, PCB board, power supply and power cord, thus causing dead-light failure. Therefore, the LED panel module, internal structure and external case all need to do a thorough and rigorous moisture-proof and waterproof design.
At the same time, the internal devices of the full-color LED screen are also the electronic parts with the most heat, such as LED lamp beads, driving IC, switching power supply, etc. Bad heat dissipation design will make the screen material oxidation, affect the quality and life. If the heat is concentrated and cannot be dispersed, it will lead to overheating of the LED internal devices and damage, causing failure. Therefore, good heat dissipation requires a transparent, convective structure, which contradicts the requirements of moistureproof.
High temperature and humidity, how to do both：
In the hot and humid weather, in the face of moisture-proof and heat dissipation, this seemingly irreconcilable contradiction can actually be skillfully resolved through exquisite hardware and elaborate structural design.
First of all, reducing power consumption and heat loss is an effective way to improve the heat dissipation capacity. The well-known LED enterprises represented by Kaipu choose high quality LED chip to optimize the design from the source, pay attention to the independent development of high efficiency and high quality driving power supply, outstanding raw material quality and excellent performance parameters for heat dissipation and moisture-proof laid a firm foundation.
In addition, improving the production process of the module is also the top priority. It is understood that the structure of PCB electronic components is optimized, simplified and reasonably arranged, and the material with high thermal conductivity is used to fill and seal, and at the same time, the water vapor can be seamlessly entered and the heat dissipation needs of the components are met.
Finally, the reasonable optimization of the box structure, can play a key role. Considering the heat dissipation and oxidation resistance of the material of the chassis, high-quality aluminum material is selected. The multi-layer space structure is adopted inside the chassis to form the overall transparent convection heat dissipation structure, which can make full use of the natural air for convection heat dissipation. It not only gives consideration to the heat dissipation and tightness, but also improves the reliability and service life.
Even in the face of this severe climate test, LED display can still maintain efficient heat dissipation on the basis of reliable moisture protection, screen operation as new, to show the power of quality to the outside world.
