Samsung teaches you to identify the authenticity of LCD splicing screen

[ Huaqiang Security Network News ] With the increasing popularity of Samsung splicing large-screen products in the market, there are many non-original products on the market under the banner of “Samsung splicing panel”, which are won by low prices. A part of the "non-mainstream" customers are welcome, whether it is feasible to choose "non-original" large-screen splicing products, we will disassemble the Samsung large-screen splicing products 460UT and non-Samsung products today, starting from several aspects of customer concern, Unravel the mystery.
LCD splicing screen
Safety first: product heat dissipation First look at the comparison of the main components power board, the following is the original thermal design of Samsung and non-Samsung: compared to the power supply cooling design, Samsung 460UT heating components are all made of aluminum heat sink and groove design. Effectively increase the heat exchange area, and then use a fan to accelerate the air flow to remove the heat from the heat sink. At the same time, multi-channel safety protection (4 fuses) is adopted, which can disconnect the external power supply when an abnormality occurs. The design of the large screen is not simple, the heat sink has a simple structure, the heat dissipation is poor, the surface heat is heavily deposited, and there is no safety protection circuit. The external current is easy to damage the circuit and cause a fire accident.
In addition, the image taken by the infrared thermal imager shows that the temperature of the air outlet of the Samsung 460UT cooling system is relatively high, which means that the heat can be effectively exported through the heat sink, and the heat is not deposited in the casing and the device is damaged. Protects the expected trouble-free time of the machine under long-term operation. It can also be seen from the internal thermal imaging diagram that only the main transformer of the Samsung 460UT has a partial temperature rise, and other devices have no abnormality. From the perspective of internal heat distribution, non-Samsung products are significantly higher than Samsung 460UT. In addition to the main transformer of the power board, the non-Samsung products also have overheating on the DC transformer of the main board.
At the same time, compared with the heat dissipation design, the Samsung 460UT has two ventilation systems. The horizontal red fan group effectively reduces the surface temperature of the PANEL surface and the circuit board through the special air path between the panel and the circuit board bracket to prevent the formation of heat accumulation. The vertical blue fan in the system forms an effective surface air path. Together with the grooved aluminum heat sink mentioned above, it can quickly reduce the surface temperature of the circuit board. Some non-Samsung brands only have one set of cooling fans. The left and right sides are located on the top of the cover. There is no special air duct design, and the forced air exhaust mode is adopted. The heat dissipation effect is poor. Thus, in terms of heat dissipation, Samsung wins over Samsung.

The Intelligent Energy Storage System

The Intelligent Energy Storage System,Large Photovoltaic Grid-Connected Power,Grid-Connected Power Generation System,Photovoltaic Grid-Connected Power Generation System

Fuzhou Mei Li Cheng Imp&Exp Co., Ltd , https://www.mlc-solar.com