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How Could Pole Led Display Be Able to Bear High Temperatures?

How Could Pole Led Display Be Able to Bear High Temperatures?

Access:214 Time:2018.11.03
With the advancement of smart city construction, the renovation of smart street lights in many cities across the country has also been put on the agenda. Pole led display has therefore become more widely used. As the display carrier of the smart street lamp project, the Pole led display needs to break through in stability. The most important one is the control of the internal temperature, because this will directly reduce the temperature resistance of the components inside the cabinet, greatly affecting the working condition and service life of the entire product.

Pole Led Display

On the other hand, the Pole led displays are mounted on the street light poles with all-metal structure and small size. In the summer, even if it is not working, the temperature inside the cabinet could reach 60 °C or higher, so the high-temperature resistance of 80 °C is the basic requirement of the Pole led display. Based on this consideration, Tecnon smart display has made a series of upgrades in product design, which avoid heat accumulation and overheating inside the cabinet. So that it can work reliably and stably within a certain temperature range.

First, the transmitting and receiving cards serve as the processing center for the entire Pole led display, carrying the "heavy duty" of converting audio and video signals to the LED display. Therefore, the core equipment such as the transmission card and the receiving card must be close to the high temperature of 80 °C. Especially for the sending card, the area of the load can be not too large, and the memory 1G is enough to ensure that the main control card is in a low power consumption and low load state. At the same time, the capacitor must reach the industrial level in order to achieve high-temperature resistance. The second is the power supply. When the ambient temperature is 30 ° C, the conversion rate of the power supply is 90%,  When the ambient temperature is 60 ° C, the conversion rate of the power supply is reduced to 60%, and when the ambient temperature reaches 80 ° C, the conversion rate of the power supply is only 50%. Therefore, when the internal temperature rises, the conversion rate of the power supply drops rapidly, so the power supply must be increased, and the heat of the power supply is reduced after the margin.

Pole Led Display

At the same time, in order to control the temperature of the main heating bead, a large chip must be used. The brightness of the Pole led display is designed to 7000 cd, and then adjusted to about 4500 cd. The power supply, the driving chip, and the light-emitting chip are all in a light load state, and the energy consumption of each unit can be reduced at the same time. In addition to this, the internal layout of the cabinet is also very important. In particular, the high-heat components such as the transmission card, the receiving card, and the power supply should be placed in the lower half of the cabinet, and the fan should be placed on the top of the cabinet to meet the principle of heat convection.

In addition, the Pole led display should use metal materials with good thermal conductivity. And design the largest possible air outlet and air inlet, the number of fans should also be increased, in order to ensure no danger in the summer high temperature. At the same time, the internal wiring design should be horizontal and vertical. At this time, the shortest line is easier to achieve internal heat convection.

Pole Led Display

All in all, in order to ensure that the Pole led display work normally under high ambient temperature, it is necessary to ensure that the hardware has less heat and can withstand high temperature. At the same time, there must be a large air inlet and outlet to meet natural convection.

It is worth mentioning that, Tecnon smart display products such as Pole display have broken through the high temperature problem and are equipped with intelligent LED cooling and heating integrated temperature control system to achieve automatic temperature sensing. The product can work stably in the temperature range of -40 ° C ~ +80 ° C and has a service life of nearly 8 years. The product is equipped with intelligent LED cooling and heating integrated temperature control system to achieve automatic temperature sensing. At the same time, Tecnon is actively developing a fully cast aluminum box to increase the thermal conductivity of the product cabinet. And the smart terminal products such as Pole led displays are made lighter, more energy-efficient and more beautiful.
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