How should outdoor LED display cope with harsh environment?

During the use of outdoor LED display screen, due to different environments, it is often affected by bad weather such as high temperature, typhoon, rainstorm and lightning. What preventive measures should we take to keep the display screen safe in bad weather?

1、 High temperature protection

The outdoor LED display screen usually has a large area, which consumes a large amount of power in the application process, and the corresponding heat dissipation is also large. In addition, the external temperature is high. If the heat dissipation problem can not be solved in time, it is likely to cause problems such as heating and short circuit of the circuit board. In production, ensure that the display circuit board is in good condition, and try to select the hollow design in the shell design to help heat dissipation. During installation, it is necessary to adhere to the condition of the display screen and good ventilation according to the condition of the device. When necessary, heat dissipation equipment shall be added to the display screen, such as adding an air conditioner or fan to help the display screen heat dissipation.

2、 Typhoon prevention

The installation positions and methods of outdoor LED display screens are different, including wall mounted, inlaid, column type, hanging type, etc. Then, in the typhoon season, in order to keep the screen body of outdoor LED display screen from falling, there are strict requirements for the load-bearing steel frame structure of display screen. The engineering unit must design and install in strict accordance with the standard of typhoon resistance level, and also have a certain seismic capacity to ensure that the outdoor LED display will not fall, causing casualties and other hazards.

3、 Storm prevention

There are many rainy weather in the south, so the LED display screen itself must have a high waterproof protection level in order not to be eroded by rain. In the outdoor use environment, the outdoor LED display shall reach the protection grade of IP65, the module shall be sealed with glue, the waterproof box shall be selected, and the module and the box shall be connected with waterproof rubber ring

4、 Lightning protection

1)         Direct lightning protection: if the outdoor LED large screen is not within the direct lightning protection range of nearby tall buildings, a lightning rod shall be set on or near the top of the display steel structure;

2)         Induction lightning protection: the power supply system of outdoor LED display screen shall be provided with level 1-2 power lightning protection, and the signal line shall be equipped with signal lightning arrester. At the same time, the power supply system of the machine room shall be provided with level 3 lightning protection, and the signal lightning arrester shall be installed at the equipment end of the signal in / out of the machine room;

3)         All LED display lines (power supply and signal) shall be shielded and buried;

4)         The front end of outdoor LED display screen and the grounding system of machine room shall meet the system requirements. Generally, the front end grounding resistance shall be less than or equal to 4 ohms, and the grounding resistance of machine room shall be less than or equal to 1 ohm.