The working principle of three heat dissipation methods for outdoor high-definition LCD TV

The working principle of three heat dissipation methods for outdoor high-definition LCD TV

There is also a distinction between indoor and outdoor HD LCD TVs. Indoor and outdoor high-definition LCD TVs have little difference in function, but are quite different in structure. It is not ideal to place high-definition LCD TVs indoors and outdoors, and the internal structure is much more complicated than that of indoor and outdoor high-definition LCD TVs. Because the brightness of the display is high, direct sunlight will generate strong heat, so manufacturers should pay attention to it when developing. If it is not handled properly, it is easy to cause the black screen of the advertising machine. The cooling medium is an important basis for the air volume, air pressure calculation and reasonable circulation air duct of the high-definition LCD TV. At present, the heat sinks of high-definition LCD TVs mainly include air cooling, heat exchangers and air conditioners. What are their principles?

First, the wind chill.

The principle of the air cooling method is to use the outdoor natural air to replace the hot air in the advertising machine to achieve the purpose of cooling. The cooling of the critical components of the speed control board is very important.

Second, the heat exchanger dissipates heat.

The basic principle of this method is that the heat conduction between the fan and the aluminum foil is strong, the internal temperature is lower than the external temperature, and the temperature difference is between 15℃-20℃. The advantage is that the front end can be dust-proof, waterproof, and steam-proof, but has no dehumidification function;

Air conditioning and cooling.