LED Disply working in Low Temperature
Earth is a planet of extremes. Countries like Mali experience sweltering average temperatures as high as 83.89 °F (28.83 °C), while less than 3,500 kilometers away, the Swiss fight their way through the 6.1 °F winter chill.
Map and list of the top 20 countries by lowest temperature ever recorded
The impact of led display working in low temperature
Outdoor LED displays in cold climates face the problem of different thermal expansion coefficients and uneven changes in the physical dimensions of their materials, such as masks, PCBs, module kits, and cabinet frames
- Crack between module and module, cabinet and cabinet.
- The shrinkage and breakage of the led modules’housing kits and cabinet frame.
- The uneven shrinkage between the LED lamp and the mask, causing the LED lamp to loosen and display failure;
- The potential dangers of water intrusion caused by the shrinkage of the waterproof rubber ring of the cabinet in low temperature.
- The Power supply cease to work.
- the protective(PVC) layer of the cable is easily broken, which will cause serious problems such as short circuit or even fire.
Selection of Low Temperature Resistant Raw Materials.
Adopt low-temperature resistant raw materials and devices, such as cold-resistant masks and bottom shell kits, low-temperature resistant waterproof glue, low-temperature power supply(meanwell) (can be started in an environment of -40℃; -25℃); Adopt low-temperature resistant cabinets, low-temperature resistant electronic devices and connectors.
Extra high protection ability
As outdoor fixed LED display works in outdoor environment for a long time, the PCB, power supply, soldering joints, etc. have high requirements for high and low temperature resistance, water resistance and corrosion resistance ability. It is recommended to carry out the coating and cold-proof treatment for PCB, components and parts, solder joints, etc., to protect the circuits from damage under the environments containing chemical substances (such as: fuel, coolant, etc.), vibration, moisture, salt spray, humidity and high temperature, low temperature conditions, thereby prolonging their service life.
Strong LED cabinets
The use of low-temperature resistant LED Cabinets: when the temperature reaches minus thirty degrees or even lower, the box of the LED display will shrink and deform, which will cause the gap between the box and the box to become larger, and even cause the peer lamps are not in the same straight line.
Heating Devices
Installing heating devices or fans inside the cabinets to keep the temperature within a reasonable range.
If the temperature is too low for the power supply to start, the screen will use an air curtain to warm up. Once the screen is warm enough, it will turn on normally. The temperature control system will turn off the air curtain when the temperature reaches the desired level.
Daily Maintenance in extrem cold weather.
To prevent damage to your led screen in very cold conditions, follow these tips:
- The best option is to keep your led screen on all the time
- If you can’t do that, at least use the stand-by mode when you are not using it
- If you have to turn it off and it doesn’t turn on easily, then you may need to heat up the led screen gently
VISIONPI has developed two new products for outdoor fixed installation: the KINGKONG series and the CAMEL series. These products use high-quality raw materials to ensure they can adapt to different environments and protect themselves from damage. VISIONPI has a laboratory that is certified by CNAS, the national accreditation body of China. The laboratory tests every cabinet multiple times before they leave the factory. The tests check how well the products can work and store in low temperatures, and how they can handle changing temperatures. This way, the products can be used normally in cold places.
VISIONPI Low Temperature resistant Outdoor led display
- High-quality gold wire LED and big currency driving IC and components that can withstand high temperatures without blackening or degrading.
- Effective aluminum heat sink design, such as 4 layer pcb board creates more space for the circuit and an external ventilation fan inside the control box to help the led screen dissipate the heat quickly.
- Calibrating and adjusting the brightness of the electronic product according to the ambient light and time of day using software tools or lighting sensors.
- High-temperature solder paster ensures the strength of the soldering work.
- Common cathode energy-saving technology decreases power consumption and heat.
