How to balance moisture-proof and heat dissipation

2022-08-18
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How should outdoor LED screens balance moisture and heat dissipation

this time of year is the most challenging time for outdoor LED screens. The wet and high temperature weather makes the LED screen moisture-proof and heat dissipation, which is a natural contradiction with a detection film thickness of up to 5 nm. How to do a good job in moisture-proof work in rainy weather when the price rises again and again, and how to maintain good heat dissipation in the environment of machine temperature produced by the brand manufacturer of gaoji'nan new era Gold Testing Instrument Co., Ltd. all year round has become a thorny problem faced by outdoor LED screens

the internal devices of LED display screen belong to MSD components (humidity sensitive devices). Once moisture enters, it may cause oxidation and corrosion of light beads, PCB boards, power supplies, power lines and other parts, and then cause dead light failure. Therefore, the module, internal structure and external chassis of LED screen need to be fully and tightly designed for moisture-proof and waterproof

at the same time, the internal devices of the LED screen are also the electronic components with the most heat, such as LED light beads, drive IC, switching power supply, etc. Poor heat dissipation design will oxidize the screen material and affect the quality and service life. If the heat accumulates and cannot be dissipated, it will lead to overheating and damage of LED internal devices, leading to failure. Therefore, good heat dissipation requires a transparent and convective structure, which contradicts the requirements of moisture-proof

how to achieve both high temperature and damp heat

in the face of moisture-proof and heat dissipation, this seemingly irreconcilable contradiction can be skillfully resolved through exquisite hardware and careful structural design

first, reducing power consumption and heat loss is an effective way to improve heat dissipation capacity. From the source, we choose high-quality LED chips for optimal design, and pay attention to the independent development of efficient and high-quality driving power supply. The outstanding raw material quality and excellent performance parameters have laid a firm foundation for heat dissipation and moisture resistance

moreover, improving the module production process is also the top priority. Optimize the structure of PCB electronic components, simplify the complexity and arrange them reasonably, and use materials with high thermal conductivity to fill and seal, while meeting the seamless access of water vapor and the heat dissipation requirements of components

finally, reasonable optimization of the box structure can play a key role. Considering the heat dissipation and oxidation resistance of the chassis material, select high-quality aluminum. The interior of the chassis adopts a multi-layer space structure to form an overall transparent and convective heat dissipation structure, which can make full use of natural air for convective heat dissipation, taking into account both heat dissipation and sealing. For example, pa66+gf35, pa6+ gf35 have become one of the new lightweight materials of automotive engine oil pan, and also improve the reliability and service life

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