Research On Forming And Heat Transfer Performance Of Perforated Fin Heat Sink

In recent years, along with the increasing of operating frequency and current, Electronic chip、device and equipment and so on. Heat dissipation is becoming more and more serious. Although it is possible to adopt advanced such as heat pipe cooling technique has obtained the very good heat dissipation effect, but from cost, ease of use, reliability, and the miniaturization of the radiator, etc into consideration, forced air cooling and natural cooling radiator is still a lot of cooling device of choice。 Group study the cutting radiator for many years, have mastered the influence law of forming and the process parameters for corrugated fin surface heat sinks. Based on the shape of corrugated fin cutting radiator and this paper proposes a new fin, A finned radiator with porous, Fin with a hole on the radiator improved fin surface structure, aimed at improving the radiator turbulence intensity of flow, Radiator thermal performance can be improved.In this paper, according to the processing principle of cutting the radiator, Studied the cutting tool rake Angle, cutting thickness, Angle, cutting stroke, row number of process parameters on the perforated fin cutting forming the influence law of the radiator, Obtained different process parameters on the fin height and thickness, fin length, bending degree, the basic rule of the influence of the geometry size of hole. To optimize and control the forming of porous finned radiator laid a foundation. According to these laws, we made a number of different structure size of porous finned radiator, provides the object to study the radiator heat transfer performance.According to different structure size of the radiator, Use solidworks to create3d model and gambit to mesh, Fluent software is used to calculate different structure parameters of perforated fin radiator under different conditions of temperature field and flow field. Get different fin height, fin thickness, fin spacing on the heat dissipation performance of the influence law under different wind speed. Supporting for the study of the radiator heat dissipation performance and optimize the structure of radiator, so reduces material resources and manpower.Finally, by means of experiments to test heat transfer performance of the porous fin radiator, including the thickness, height of the radiator wind direction, wind speed, hole arrangement number. Test temperature field under different working conditions. Simulation combined with experiment method, provides basis for optimizing and controlling the forming of the perforated fin radiator.