We all know that in some countries or regions, the temperature is below 0 ℃ all year round, and even below – 30 ℃ at night. When the ambient temperature is too low, the power supply on the display screen will not be turned on successfully, so we should do a good job in large-scale outdoor
We all know that in some countries or regions, most of the temperature is below 0 ℃ all year round, and even below – 30 ℃ at night. When the ambient temperature is too low, the power supply on the display screen will not be turned on successfully. Therefore, we should do a good job in the temperature protection of large outdoor display screen.
The following Sanli hengying technology provides insulation solutions for large outdoor display screens under ultra-low temperature:
1. Ultra low temperature power supply: Japan TDK ultra-low power supply
2. A hot air curtain is installed inside the LED display screen: a closed channel is made inside the large screen, and a hot air axial flow is installed at the rear. The working state of the hot air axial flow is realized through the temperature control system. When the temperature is lower than the set minimum ambient temperature, the hot air blower heats, the screen temperature rises, and then the screen opens. When the temperature reaches the set temperature, the temperature control system cuts off the AC power supply to the hot air blower.
3. “Three Prevention” treatment of power supply and PCB circuit board outdoor LED electronic display screen is in the open environment for a long time, so PCB circuit board, power supply and solder joint are required to be resistant to high and low temperature, waterproof fog and corrosion. Our company comprehensively carries out “Three Prevention” treatment for PCB circuit boards, components, solder joints, etc. in the outdoor electronic display system. The circuit board three prevention paint is a coating with special formula, which is used to protect the circuit board and its related equipment from the erosion of bad environment, so as to improve and prolong their service life and ensure the safety and reliability of use.
Solution of large outdoor display screen under ultra-low temperature
