Published on 19th May '12 12:03
Number of Views: 2026
Natural convection has been used to cool electronics for ages. It is a simple and reliable method. The big drawback, of coarse, is that the cooling capacity is limited. All possible means to enhance natural convection are therefore more than welcome. This article is about one particular method, inclined parallel plates.
My first encounter with this issue happened when I was trying to design a cooling system for active electronics mounted in radio masts. Fans were excluded for reliability reasons. The only realistic alternative was therefore natural convection. The equipment was enclosed in metal boxes that needed to be cooled from one side. Applying a wide but not very high heat sink could have solved the problem but horizontal structures are not considered esthetical in radio masts. A second restraint was therefore that the heat sink not could be made much wider than the mast itself.