The working principle of a cooling fan is achieved through energy conversion, that is, electrical energy → electromagnetic energy → mechanical energy → kinetic energy. The circuit principle is generally divided into various forms, and the performance of the fan will vary depending on the circuit used. Meanwhile, the cooling fan has been widely used due to its fast speed, easy installation, and good cooling effect. In order to give everyone a better understanding of cooling fans, today the editor will introduce themWhat are the main ways of cooling fans?

The heat dissipation method of a cooling fan refers to the main way in which the radiator dissipates heat. In thermodynamics, heat dissipation is the transfer of heat, and there are three main ways of heat transfer:
　　
1Thermal radiation:It refers to the transfer of heat through radiation, commonly known as solar radiation.
　　
IIThermal convection:It refers to the heat transfer method of a cooling fan that uses a flowing fluid (gas or liquid) to move heat. In the cooling system of a computer case, the common method is the "forced convection" cooling method where the cooling fan drives the flow of gas.
　　
IIIThermal conduction:Thermal convection and thermal radiation. This is a common way of heat transfer in cooling fans, which is simply the transfer of energy through the substance itself or when substances come into contact with each other, known as heat conduction. For example, the direct contact between the CPU heat sink base and the CPU to remove heat belongs to thermal conduction.