The Determinants Of Heat Sink Efficiency

The Determinants Of Heat Sink Efficiency. Following are main reasons about the heat sink efficiency.

Heat Sink Material

The heat dissipation principle of the radiator is to conduct heat to the outside through the heat transfer of the metal.
This requires consideration of the heat transfer efficiency of the metal:
The thermal conductivity of aluminum is 237
The thermal conductivity of copper is 401
The thermal conductivity of silver is 429. (strongest in nature)
Among the materials for making heatsinks, aluminum heat sink is the most common, because it has good thermoplasticity and is easy to process, so the price can reach a very low level. Copper is relatively high, but because of the difficulty of processing, the cost is usually several times that of aluminum. Silver, this expensive thermal conductive material is only used in precision instruments in the laboratory.

Heat Sink Heat Pipe
Later, with the development of science and technology, mankind invented a technology called heat pipe technology. Its appearance made a big step forward in human heat conduction technology. The heat conduction ability of heat pipe exceeds that of any known metal.
The thermal conductivity reaches an extremely terrifying 2,000-300,000, which is 300,000. The ability of heat pipes with different materials and parameters is different.
At present, the diameter of the heat pipe in the radiator market is mostly 6mm and 8mm, and it is not common in the larger market.
Among them, the 6mm small heat pipe is commonly used in niche brand radiators. The advantage is that it is cheap and easy to use.
8mm standard heat pipes are commonly found in radiators of major brands.

Heat Sink Structure
The vertical tower structure with horizontal cooling fins + several heat pipes is the most mainstream radiator structure at present.

The performance measurement of air cooling can be roughly judged by the number of heat pipes.

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