The role of thermal conductive gap fillers

The main reason for the heating of electrical appliances when working is that in reality, the current passing through the resistor will generate heat, which is unavoidable. The main reason is to reduce the temperature of the heat source by artificially guiding the heat from the surface of the heat source to the cooling module, which is the most intuitive and effective. cooling method.

Although it is said that the heat is guided into the heat dissipation module through the contact between the heat source and the heat dissipation module, the actual contact between the two solid surfaces in contact with each other is some discrete areas, and the other non-contact interfaces are filled with air, and the heat will be affected by it when passing through. Additional resistance, so the actual heat dissipation efficiency will be different from the theoretical value.

The emergence of thermal conductive gap filler material largely solves this problem. thermal conductive gap filleris a type of thermal conductive gap filling material that can effectively reduce the contact thermal resistance between the heat source and the heat dissipation module, remove the air in the gap, and improve the heat dissipation efficiency. There are many, such as thermally conductive silicone sheets, silicon-free thermally conductive pads, thermally conductive phase change pads, thermally conductive film, thermally conductive silicone grease, thermally conductive gel, carbon fiber thermally conductive pads, etc. Of course, thermally conductive gap fillers are not the only ones. The choice of seam material needs to be considered according to the characteristics of the product in order to better improve the heat dissipation effect.