What is a Computer Fan?

Computer fans, also called cooling fans, are generally used for cooling. Provided for use with radiators and chassis. The size of general cooling fans on the market ranges from 2.5cm to 30cm in diameter and thickness from 6mm to 76mm. According to different operating requirements, rare AC (AC, powered by household outlet) and common D power supply (DC, powered by computer fire or motherboard), most use two-phase motors (two sets of copper coils, a total of four units), which is beneficial to save production costs when the speed is not high.

Computer fan

Computer fans are divided into:

The main performance of the fan is reflected from the following aspects: speed, fan shape, fan blade

CPU fan

Angle and bearing system. In general, the fan speed is indicated on the radiator manual. Generally speaking, 30% of the cooling effect of the radiator depends on the speed of the fan. But the fan is not as fast as possible. The correct fan speed should be determined according to the amount of heat generated by the CPU. The selection of fan speed for different specifications should be differentiated. The basic principle is: under the premise of generating the same air volume, the larger the fan speed, the lower the speed and the noise will Smaller, generally between 3500 and 5200 rpm is more conventional.

The higher the power, the stronger the fan's wind power, and the better the cooling effect. The power of the fan is directly related to the speed of the fan, which means that the higher the speed of the fan, the stronger and more powerful the fan is. At present, the fans sold in the general computer market are DC 12V, and the power ranges from 0.XW to 2.XW. Then the power needs to be selected according to the heat of your CPU. It is especially reminded that you cannot emphasize high power one-sidedly. You only need to match the power of the CPU itself. If the power is too large, not only the cooling effect is not greatly enhanced, but it may increase the computer's workload and ultimately shorten CPU and fan life. Therefore, while selecting the CPU power, you should measure "hot". And the front opening of the fan should always be kept clean to avoid blocking.

Better heat sinks, no burrs on the edges, no deformation of the fins, smooth bottom without cracks, neat appearance, generous shape, warranty, anti-counterfeiting marks or other features of the trademark. In addition, when choosing a radiator, you should also pay attention to that the bottom of the radiator must not be too thick, because the thermal conductivity of aluminum is not very good, too thick will affect the heat transfer; in addition, the diversion groove on the surface of the radiator should be dense This can ensure that the radiator can have a larger contact area with the air, thereby enhancing the heat dissipation effect. Generally, computer enthusiasts will re-load the water-cooled fan to the CPU if the economy allows it, and the rapid cooling effect can be achieved through the circulation of liquid. ^[1]