What is the application of silicon-free thermal pads in security cameras?

People in the security camera industry are aware of a problem, that is, if the heat dissipation problem cannot be dealt with, the CPU temperature is too high and the operation becomes unstable, so that the automatic restart or crash occurs, which may cause the moment when the key monitoring is missed. Has an unstable impact on the working life of the security camera. The security camera industry generally encounters such heat dissipation problems, so how to deal with it? The heat dissipation fan alone cannot effectively handle the heat dissipation problem, so the editor here recommends that customers use silicon-free thermal pads for auxiliary heat dissipation.

silicon-free thermal pads is a kind of gap-filling thermal conductive material made of special resin instead of silicone resin and adding thermal conductivity and temperature resistance materials. At present, most of the thermal conductive materials on the market are based on silicone resin. However, the thermal conductive material containing silicone resin will precipitate out small siloxane molecules under heat and pressure. The small siloxane molecules will be adsorbed on the printed circuit board or the mirror surface of the camera, except that it may cause damage to the circuit board. Unstable factors may also affect the use of the camera.

Especially in the field of 24-hour operation of security cameras, under continuous pressure and heat, if it is a thermally conductive material containing silicone oil, small siloxane molecules must be precipitated. Therefore, a silicon-free thermally conductive gasket is used here, which has thermal conductivity. The characteristics of the silicone sheet, and no small siloxane molecules are precipitated, which can increase the working life under the premise of ensuring the thermal conductivity.

The application of silicon-free thermal pads in security cameras is as follows: First, install a silicon-free thermal pad with high thermal conductivity between the main chip of the camera and the heat sink, so that the main chip and the heat sink are tightly bonded together to reduce the interface thermal resistance , Improve thermal conductivity, as to why use silicon-free thermal pads with high thermal conductivity? Because the thermal conductivity directly affects the thermal conductivity and performance of the silicon-free thermal pad

　　Secondly, a silicon-free thermal pads is installed under the PCB, and the temperature on the CPU is transferred to the shell through the silicon-free thermal pad, and then the heat is transferred out through the shell. With the addition of silicon-free thermal pads, the contact surface between the heat source and the radiator can be fully contacted and face-to-face contact can be achieved. The temperature response can achieve the smallest possible temperature difference.