Skived Fin Heat Sink Bulk

What is the function of the electronic heat sink? As the name implies, it is a device of electronic products' heat dissipation, which is mainly used to radiate the heat generated by electronic products to the inside and outside of the chassis to ensure the normal temperature of computer components. Most electronic heat sink absorb heat through contact with the surface of the heating parts, and then transfer the heat to distant places through various methods, such as the air in the case, and then the case transmits the hot air to the outside of the case to complete the cooling of the computer. At present, several main principles of the electronic heat sink are such as: the base plate vertical, fin horizontal;The base plate is horizontal and the fin is upward; The base plate is vertical and the fin is vertical.The electronic heat sink has a base in contact with a heat source and a fin for heat dissipation. The heat dissipation area is designed according to the size of heat source energy and the temperature value of heat source. Heat dissipation area refers to the area directly in contact with the atmospheric environment. The design principle of electronic heat sink is to determine the power of the heat source, to determine the stable temperature of heat dissipation through the heat source, to determine the space available on the electrical appliances, to determine the way of heat dissipation (such as natural cooling, air cooling, water cooling).For natural cooling, especially at lower temperatures, radiation heat dissipation is one of the important factors.The way the electronic heat sink is placed has an effect on the heat dissipation effect. The base plate is placed vertically and the fins are placed horizontally. The fins block the upward flow of hot air and have the worst heat dissipation effect.Base plate horizontal, fin upward placement, heat dissipation effect between other ways, because the fin is low, weak chimney effect. Base plate vertical, fin vertical placement, hot air is easy to upward flow, and a higher height will have a certain chimney effect, heat dissipation is better. But the chimney effect is weak, depending on where the heat source is placed.Through the above introduction, it is that users should be aware of is when the choose and buy electronic heat sink, don't just go to see the price, delivery time, also look at the stand or fall of material, such as aluminum alloy heat sink usually adopt pure aluminum or 6063 to manufacture, two materials that have good thermal conductivity compared with the thermal conductivity of the complex aluminium differential times; Because the heat dissipation cost of electronic heat sink more than half is material cost, the price of miscellaneous aluminum is low; Because this is right, especially cheap electronic heat sink, want to consider when buying the loss of heat dissipation performance that causes because of material quality.Electronic heat sink first determine when the choose and buy to the cooling of electronic components, clarify its working parameters, working conditions, size, installation, choice of electronic heat sink bottom mounting surface are slightly larger than the components size can, because of the limitation of the installation space, electronic heat sink mainly by air convection and heat dissipation, beyond and component interface of the heat sink, the heat dissipation effect is diminishing with the increase of the distance and components.For single rib heat sink, if the required width of the heat sink in the table is vacant, can choose two or three times the width of the heat sink truncated.

920w heat pipe heat sink for igbt simulation module & Simulation ResultsHeat pipe heat sink for igbt  fundamental SpecificationSimulation model : environment temperature：45cMaterial：baseAL6063-T5 + FIN AL5052heatsink Size：700.0 mm wide x 400.0 mm long x 137 mm high                             base thickness：19mm  fin , thickness：1.5mm 112 finsAdd 6pcs with 8mm diameter heat pipes at the bottom3pcs 14051-fans Heating power: see instructions in the followingHeat Pipe Heat sink Design (3D)  model Heat Pipe Heat sink Simulated test with 3D920W heat source                                       Heat pipe heat sink thermal analysis Simulated test resultsFlow graphHeat pipe heat sink thermal analysisenvironment temperature：45cThe maximum surface temperature profile of the cooling module is 79.3cResult:  environment temperature：45c3pcs 14051 fansheat pipe heat sink for igbt heat source power：about 2937.5Wadd 6pcs (8mm) The heat pipe is at the bottom of the heat sinkThe surface of the heat pipe heat sink is the highest temperature：79.3c

1600w Led Heat Sink Simulation module & Simulation ResultsLed heat sink fundamental specificationSimulation model : 8 heatpipe module,  D 8mm heat pipeAL fin thickness：0.8mm   99finsenvironment temperature：25 °C fan : 8038 FAN  LED heat source：1600w      Led heat sink design (3D)  model Led heat sink design (3D)  model                                        Led heat sink thermal analysis  Simulated  temperature 35℃Natural convectionLed heat sink thermal analysisEnvironment temperature 25 degreesSurface temperature profile of heat dissipation module: max 73.1CThermal analysis     Environment temperature 25 degreesSurface temperature profile of heat dissipation module: max 73.1CResult:  Simulated  temperature :25 ℃ Fan size: 8038 FAN    105CFM   34.2mmH2OLed heat sink heat source：1600w    (Six heating sources） Maximum surface temperature of heat sink：73.1C

IGBT heat sink Simulation module & Simulation ResultsIGBT heat sink Fundamental SpecificationAmbient temperature : 40℃Analysis of customer supply modelIGBT heat sink material：AL6061- T6Fin：zipper fin Fin Material : AL 1050Use 5 heat pipesThe heat pipe is sandwiched between fin sheet and bottom plateheat sink size:  512X230X125mm FIN thickness : 0.6mm   ,total 166 ps Fan specifications：SANYO 9G1212HG105 12CM 12V 0.98A  , 4pcs fansAir volume：135CFM Wind pressure：125PA The model was placed 3cm away from the discrete hot bodyHeat value of heat source：3900wTwo fin design structures ：Open and close    IGBT heat sink fan specificationsIGBT heat sink simulated test model"3900W heat source                                                                            IGBT heat sink simulated test modelOpen                                              IGBT heat sink simulated test modelClose  IGBT heat sink thermal analysis result(fin open)  Flow model : Turbulent (zero-equation)  IGBT heat sink thermal analysis result(fin open)Flow model : Turbulent (zero-equation) Highest temperature of heating body: 123 ℃ (for reference only, please use actual measurement)  IGBT heat sink thermal analysis result(fin close)Flow model : Turbulent (zero-equation) The heatsink temperature distribution is up to 119 ℃  Conclusion:  Ambient temperature : 40℃Maximum temperature of  IGBT heat sink (fin open)：121 ℃Maximum temperature of  IGBT heat sink (fin close)：119 ℃ Heat pipe suitable for above 100 ℃ high temperature should be selected, otherwise the heat pipe may burn out.The highest temperature below 125 ℃ is required by the customer.  IGBT heat sink thermal analysis result(fin open)Flow model : Turbulent (zero-equation) heatsink temperature distribution up to 121 ℃  IGBT heat sink thermal analysis result(fin close)Flow model : Turbulent (zero-equation)   IGBT heat sink thermal analysis result(fin close)Flow model : Turbulent (zero-equation) Maximum high temperature of heating body: 121 ℃ (for reference only, please use actual measurement as main)