Introduction to the Types of Computer AC Axial Fans.mini fan with led light

　　The blades of an axial fan push the air to flow in the same direction as the shaft. The impeller of the axial fan is somewhat similar to the propeller. When it is working, most of the airflow is parallel to the axis, in other words, along the axis. When the inlet air flow is free air with 0 static pressure, the axial flow fan has the lowest power consumption. When running, the power consumption will increase with the rise of the airflow back pressure. Axial fans are usually installed on cabinets of electrical equipment, and sometimes integrated on motors. Because of their compact structure, axial fans can save a lot of space and are easy to install, so they are widely used.

　　Features: high flow rate, moderate wind pressure

　　Centrifugal fan

　　When the centrifugal fan is working, the blades push the air to flow in a direction perpendicular to the axis (ie radial direction), the intake air is along the axis direction, and the air outlet is perpendicular to the axis direction. In most cases, the cooling effect can be achieved by using an axial fan. However, sometimes a centrifugal fan must be used if the airflow needs to be rotated by 90 degrees or when a large air pressure is required. Strictly speaking, the fan is also a centrifugal fan.

　　Features: limited flow rate, high wind pressure

　　Mixed flow fan

　　Mixed-flow fans are also called diagonal flow fans. At first glance, mixed-flow fans are no different from axial-flow fans. In fact, the intake of mixed-flow fans is along the axis, but the outflow is along the diagonal direction of the axis and the vertical axis. This kind of fan has higher wind pressure due to the conical shape of the blades and the cover, and the noise of the centrifugal fan is lower than that of the axial flow fan under the same size and other comparable performance.

　　Features: High flow rate and relatively high wind pressure

　　Cross flow fan

　　Cross-flow airflow can generate large-area airflow and is usually used to cool large surfaces of equipment. The inlet and outlet of this type of fan are both perpendicular to the axis (as shown on the right). The cross-flow fan uses a relatively long barrel-shaped fan impeller to work. The diameter of this barrel-shaped fan blade is relatively large. Because of the large diameter, a relatively low speed can be used on the basis of ensuring the overall air circulation, so as to , reduce the noise caused by high-speed operation.

　　Features: Low flow rate, low wind pressure

　　In summary, through this article, we can understand the different classifications of computer AC axial fans. Different types of computer AC axial fans have different structures and performances, and have different effects on computer heat dissipation. When we buy a computer AC axial fan, we must pay attention to the type of computer AC axial fan.

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