Cooling fan manufacturers: Introduction to the classification and characteristics of cooling fans
Cooling fans can be divided into the following categories according to the airflow direction of the fans: axial fans, centrifugal fans, mixed-flow fans, cross-flow fans, the characteristics of different types of fans are different, the following Cooling fan manufacturers professionals will give you details introduce.
Axial fan:
The blades of an axial fan push air to flow in the same direction as the shaft. The impeller of an axial fan is similar to the propeller. When it works, most of the airflow is parallel to the shaft, in other words along the axis. When the inlet airflow is free air with zero static pressure, the axial flow fan has the lowest power consumption. When operating, the power consumption will increase as the airflow back pressure rises. Axial fans are usually installed in cabinets of electrical equipment, and sometimes integrated on motors. Because of their compact structure, they can save a lot of space and are easy to install, so they are widely used.
Features: high flow rate, medium wind pressure
Centrifugal fan:
When the centrifugal fan works, the blades push air to flow in a direction perpendicular to the shaft, the air intake is along the axis direction, and the outlet air is perpendicular to the axis direction. In most cases, the cooling effect can be achieved by using an axial fan. However, sometimes if the airflow needs to be rotated by 90 degrees or when a larger air pressure is required, a centrifugal fan must be used. Strictly speaking, fans are also centrifugal fans.
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 inlet of mixed flow fans is along the axis, but the outlet is along the diagonal between the axis and the vertical axis. This kind of fan has a higher wind pressure due to the conical blades and outer cover. In the same size and other comparable performance, the centrifugal fan has lower noise than the axial fan.
Features: high flow rate and relatively high wind pressure
Cross flow fan:
Tubular wind flow can produce a large area of ??wind flow, which is usually used to cool large surfaces of equipment. The inlet and outlet of this fan are perpendicular to the axis. The cross flow fan uses a relatively long barrel-shaped fan impeller to work. The diameter of the barrel-shaped fan blade is relatively large. Because of the large diameter, it can use a relatively low speed on the basis of ensuring the overall air circulation. , Reduce the noise caused by high-speed operation.
Features: low flow rate, low wind pressure
When choosing a cooling fan, you can make a comprehensive choice based on its classification characteristics and the characteristics of your own products. The preferred brand recommends Ruianpu Electronics. The fan types are complete, whether it is AC cooling fans, DC cooling fans, blowers, centrifugal fans, and other functions. Very comprehensive.