Can The Electronics Heat Sinks Be Specially Customized?
Jul 14, 2022| Can the Electronics heat sinks be specially customized?
In the design scheme of the Electronics heat sinks, under the allowable standard of net weight and volume, increasing the overall width of the Electronics heat sinks can also be a reasonable way to reduce the thermal resistance. Hazards of Rib Geometric Elements Rib geometric elements include thickness, aspect ratio, rib spacing, and the relationship between each element and junction temperature. With the increase of fin thickness, the thermal resistance of the electronic heat sink did not change significantly, but the junction temperature first decreased and then increased slightly, and the temperature change rate changed from negative to positive.
In fact, changing the thickness of the fins only changes the internal thermal conductivity and temperature gradient of the electronic heat sink, it is impossible to change the total contact area of the fins with the outside air, and it is impossible to increase the convective heat transfer index. Therefore, the thickness change has little effect on the thermal resistance of the electronic heat sink. In the specific design scheme of the electronic heat sink, the thickness of the heat sink is not a very important main parameter. In addition to the increase in net weight, too thick fins will continue to cause a reduction in the rib spacing, given the overall width of the electronic heat sink and the total number of fins.

