Heat dissipation of electronic heat sinks

During the working process of technical electronic equipment, a certain amount of heat is generated, and natural heat dissipation cannot meet the heat dissipation requirements of electronic equipment. Therefore, the installed heat sink is used to dissipate heat. The traditional heat sink has low heat dissipation efficiency, and high temperature causes damage to electronic equipment. , affecting the normal operation of the electronic equipment, the use process is unsafe, and the service life of the electronic equipment is reduced.

In thermodynamics, the heat dissipation of an electronic heat sink is heat transfer, and there are three main ways of heat transfer:

Thermal radiation refers to the transfer of heat by ray radiation. The most common daily radiation is solar radiation. These three types of heat dissipation are not isolated. In daily heat transfer, these three types of heat dissipation occur simultaneously and work together.

Thermal convection refers to the heat transfer method in which the flowing fluid (gas or liquid) takes the heat away. In the cooling system of the computer case, the "forced thermal convection" cooling method in which the cooling fan drives the gas flow is more common.

Heat conduction, heat convection and heat radiation. The transfer of energy in matter itself or when matter comes into contact with matter is called heat conduction, which is the most common form of heat transfer. For example, the direct contact between the CPU heat sink base and the CPU to take away heat is thermal conduction.

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