How to deal with the harsh outdoor environment wit

2022-09-22
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How does the LED display cope with the harsh outdoor environment

the outdoor advertising LED display has relatively high requirements for the use environment. Considering that the outdoor LED display may be affected and destroyed by low temperature, typhoon, rainstorm and lightning weather, the following suggestions are sorted out:

1 The outdoor LED display screen against high temperature usually has a large area. In the middle of the application process, the power consumption is due to the large amount of data statistics and analysis, and the corresponding heat dissipation is also large. In addition, the external temperature is high. If the heat dissipation problem cannot be solved in time, it is likely to cause problems such as circuit board heating and short circuit. In production, ensure that the circuit board of the display screen is in good condition, and try to choose the hollow design in the shell design, which is conducive to 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, add heat dissipation equipment to the display screen, such as adding an air conditioner or fan inside to help the display screen heat dissipation

2. There are many kinds of installation positions and installation methods of outdoor LED display screens for typhoon prevention. There are wall type, inlay type, column type, suspension type, etc. Then in the typhoon season. In order to keep the LED display screen equipment from falling, there are strict requirements for the load-bearing steel frame structure of the display screen. The engineering unit must design and install in strict accordance with the standard of typhoon resistance grade, and also have a certain seismic capacity to ensure that the outdoor le1 must require the enterprise to show the test report of the National Center for quality supervision and inspection of fire resistant building materials issued by the fire bureau of the Ministry of public security, and the D display screen will not fall, causing casualties and other hazards

3. There are many rainy weather in the south to prevent rainstorm, so the LED display screen itself must have a high waterproof protection level to avoid rain erosion. In the outdoor use environment, the outdoor LED display screen should reach IP65 protection grade, the module should be sealed with glue, the waterproof box should be selected, and the module and the box should be connected with waterproof rubber rings

4. Lightning protection of outdoor LED display screen mainly includes four parts

first, direct lightning protection of outdoor screen

shutdown: when the injection molding cycle is interrupted, if the outdoor screen is not within the direct lightning protection range of nearby tall buildings, it is necessary to set lightning rods on the top or near the screen steel structure

II. Induction lightning protection of outdoor screen

1. The large screen power supply system shall be equipped with level 1-2 power supply lightning protection, and the signal circuit shall be equipped with signal lightning arrester

2. 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 machine room

III. all LED large screen lines (power supply and signal) shall be shielded and buried

IV. the front end (outdoor screen 2015 rubber and plastic and innovative material utilization Seminar) and the machine room grounding system should meet the system requirements. (generally, the front-end grounding resistance should be less than or equal to 4 ohms, and the machine room grounding resistance should be less than or equal to 1 ohm)

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