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Heat sink parts for heat sink processing

2019-8-8 15:56:30     Visits:    

Heat sink parts for heat sink processing
The heat dissipation method refers to the main way that the radiator emits heat. In thermodynamics, heat dissipation is the transfer of heat, and there are three main modes of heat transfer: heat conduction, heat convection, and heat radiation.
The heat dissipation efficiency of the radiator is related to the heat conductivity of the radiator material, the heat capacity of the radiator material and the heat dissipation medium, and the effective heat dissipation area of the radiator.
According to the method of taking away heat from the radiator, the radiator can be divided into active heat dissipation and passive heat dissipation. The former is usually an air-cooled radiator, while the latter is a common heat sink. Further subdivision of heat dissipation methods can be divided into air cooling, heat pipes, liquid cooling, semiconductor cooling and compressor refrigeration and so on.
Air cooling is the most common, and very simple, use a fan to take away the heat absorbed by the radiator. It has the advantages of relatively low price and simple installation, but it is highly dependent on the environment. For example, when the temperature rises and overclocking, its heat dissipation performance will be greatly affected.
Heat tube is a heat transfer element with high thermal conductivity. It transmits heat through evaporation and condensation of liquids in fully enclosed vacuum tubes. It uses fluid principles such as capillary action to play a similar role as refrigerator compressor refrigeration. effect. It has a series of advantages such as high thermal conductivity, good isothermal properties, arbitrary changes in the heat transfer area on both sides of cold and heat, long-range heat transfer, and controlled temperature. The heat exchanger composed of heat pipes has the advantages of high heat transfer efficiency, compact structure, and small fluid resistance. Due to its special heat transfer characteristics, the temperature of the pipe wall can be controlled to avoid dew point corrosion.
Liquid cooling is the use of liquids driven by the pump to forcibly recycle away the heat of the radiator. Compared with wind cooling, it has the advantages of quiet, stable cooling, and low dependence on the environment. However, the price of heat pipes and liquid cooling is relatively high, and the installation is also relatively troublesome.

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