How to control the working temperature inside the pole LED display?
Mar. 06, 2025
LISN LED
At present, LED pole screens are becoming more and more popular. Due to different installation environments, the market has put forward new requirements for the quality of pole LED display screens. Especially in terms of hardware, there are many requirements, such as high brightness, high temperature resistance, energy saving, lightness, easy installation, stability, earthquake resistance, etc. These are basic and very important requirements for light pole LED display screens.
The pole LED display cabinet is a metal structure with a small internal space. It is generally installed on the roadside. In the hot summer, under the sun, even if there is no power, the internal temperature can reach 80℃. Such a high temperature environment is an extremely terrible and harsh application environment for an LED pole screen, so effectively controlling the internal temperature of the pole LED display is the key to the stable application of the pole LED display screen. So how should the internal working temperature of the pole LED screen be controlled?
In addition, the pole LED display is composed of a large number of resistors and capacitors, plastic connectors, cables and power cords. These materials may melt and mutate at high temperatures, resulting in instability of the entire equipment or serious failures. Therefore, in addition to controlling the internal temperature of the LED pole screen, improving the heat dissipation efficiency is also an important aspect of the stable operation of the pole LED display.
Therefore, in order to ensure the stable operation of the pole LED display, LISN LED is solved from the following three aspects: less heat, fast heat dissipation, and high temperature resistance above 80℃.
1. Less heat is a key, so in order to reduce heat, we need to start from the following aspects:
Use a power supply with high conversion efficiency.
2. Apply common cathode technology (ie 4.2V) to drive.
3. The power supply should have a surplus of more than 30%.
4. Use 2153 type energy-saving driver IC.
5. LED lamp beads use large chips.
6. Select high-quality photoresistors to control brightness.
7. Use temperature-controlled fans to adjust the internal temperature at any time.
8. Realize remote hard power off to allow the device to have a long rest.
2. In addition, the heat dissipation problem of the pole LED display is also a key, and it also needs to start from several aspects:
Design large air inlets from the bottom and top of the cabinet to ensure sufficient air intake.
2. Install as many fans as possible to help the pole screen dissipate heat effectively.
3. The cabinet uses aluminum material with good thermal conductivity, which can conduct heat better.
4. The internal wiring should be flat to ensure that the cold air circulation is not blocked.
3. To manufacture a high-temperature pole LED display that can withstand 80℃, we mainly start from several aspects:
The main control card uses a single-chip microcomputer, which is simple but stable and can meet the use of the pole LED display.
2. The resistors and capacitors on the main control card must be military-grade and can withstand high temperatures up to 80℃. When the ambient temperature is 35℃, the internal temperature of the cabinet may be around 70℃, and the temperature of the main control card may reach 110℃.
3. The wires inside the pole led screen cabinet must also be made of high-temperature resistant materials.
From the above analysis, it can be seen that the pole LED display has high requirements for high temperature resistance due to its small size and special application scenarios. LISN LED has been optimizing its structure and selecting better materials to create high-quality LED pole screens for the market.
