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Manufacturing in China Blog
Here you can leave comments and start discussions about manufacturing parts of complete products in China.
Viewing entries tagged heatsink
Posted by P&A International
P&A International
P&A International is China based company formed by partners with engineering background in 2008. Our main focu...
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on Saturday, 12 January 2013
in General Talk
Optimizations for heat sink thermal performance often result in solutions that are not practical to implement either from a component availability or manufacturability point of view. This review describes the optimization process for a parallel fin heat sink with a dedicated fan for cooling. Some of the factors considered are fin thickness and density, fin height, overall lenght, and performance. The constraining factors are choice of fan and associated fan performance curve, weight, cost, and manufacturing technology. The technology places limitations on fin geometry. The emphasis is illustrating the complexity of the process and the number of factors to consider when...
Posted by P&A International
P&A International
P&A International is China based company formed by partners with engineering background in 2008. Our main focu...
User is currently offline
on Tuesday, 31 July 2012
in General Talk
Advantages of using copper over aluminium for heat sinks are often discussed. If you look at high end CPU coolers for personal computers market for example, you will see extended use of copper. Coper thermal conductance is 4.01 W/cmK and aluminium is 2.37 W/cmK. With copper thermal conductivity so much higher that aluminium one would expect significant performance difference in real world. Let’s run some thermal tests.
We have set up a test rig consisting of 200mm X 200mm X 2mm copper and aluminium plates. A heat source was chosen as power mosfet and was mounted in the middle of...