As one of the electronic devices, LED electronic large screen is packaged with very small power LED beads, but because a LED electronic large screen is packaged with thousands of beads, it will also generate heat. The following is a brief introduction by the mini photoelectric LED display manufacturers about the seven tips to solve the heat dissipation problem of LED electronic large screen.
Nine ways to solve the heat dissipation problem of LED electronic large screen
Generally speaking, with the increase of the area of LED electronic large screen, the heat generated is also higher. Similarly, the higher the brightness, the greater the power, the higher the heat generated. Generally speaking, the brightness of outdoor LED display is higher than that of indoor LED display, which is why the brightness of indoor LED display is higher than that of outdoor LED display. That is to say, the heat generated by LED outdoor display screen is about three times that of LED indoor display screen, and the heat generated by external environment, such as high temperature environment in summer, is higher.
This is the main reason why LED display manufacturers recommend that customers install air conditioners for heat dissipation. And the better the heat dissipation, the more energy-saving LED electronic large screen, its service life and display effect are also better. The following is a brief introduction about the cooling method of LED electronic large screen by the mini photoelectric LED display manufacturers.
1. Heat dissipation equipment, use long-life and high-efficiency fan inside the lamp shell to strengthen heat dissipation, this method has low cost and obvious effect. If the indoor environment is relatively high, fans, blowers or air conditioners can be installed around the LED electronic large screen for heat dissipation. If it is led outdoor display, the construction must install air conditioning and other heat dissipation equipment.
2. Energy saving, LED display manufacturers can reduce the power of LED electronic large screen to a certain extent by using energy-saving driving IC and energy-saving driving power. This kind of LED energy-saving screen can save about 50-70% energy than ordinary LED display screen, and with the decrease of power, the heat of LED display screen will automatically reduce to achieve the effect of heat dissipation.
3. LED display manufacturers install sensors in the control card of LED display, which can sense the brightness of the surrounding environment. In order to achieve the effect of energy saving and heat dissipation, the brightness of LED display screen can be automatically adjusted by sensing the brightness of the surrounding environment.
4. Heat conduction and heat dissipation integration, using the principle of high thermal conductivity ceramics, the purpose of lamp shell heat dissipation is to reduce the working temperature of LED electronic large screen chip, because the expansion coefficient of LED chip and ordinary metal heat conduction and heat dissipation material has a large gap. Therefore, the LED chip can not be directly welded to avoid high and low temperature thermal stress damage the LED display chip.
5. Aluminum fins are used as a part of the shell to increase the heat dissipation area, so as to achieve the purpose of heat dissipation. At the same time, it is also a common way of heat dissipation.
6. The thermal conductive plastic shell is filled with commercial thermal conductive material when the plastic shell is injected, so as to increase the heat conduction and heat dissipation of the plastic shell.
7. Aerodynamics, the use of lamp shell shape, to produce convective air, this way is based on low-cost on the basis of strengthening the heat dissipation method.
8. Surface radiation heat treatment, radiation heat treatment on the surface of the lamp shell, that is, by applying radiation heat paint, heat can be taken away from the surface of the lamp shell by radiation.
9. The heat pipe is used to dissipate heat. The heat is transferred from the chip of the LED electronic large screen to the cooling fin of the shell by the heat pipe technology.
Generally speaking, because the LED indoor display is used in the indoor environment, and the brightness is low, the screen area is small, so the heat generated is not particularly high. In addition, the indoor air conditioner is usually turned on in summer, which can achieve the effect of heat dissipation. Therefore, the LED indoor display screen will generally choose conventional raw materials for packaging, while the LED outdoor display screen will add a heat dissipation process and waterproof process.
In addition, in addition to the LED indoor display does not use special heat dissipation materials, the LED transparent screen adopts the light bar design, and there is air between the lamp beads, which can automatically dissipate heat by using the air flow. In addition, the number of lamp beads is small, the area is small, and the brightness is divergent, so the heat generated is relatively low.
