Detailed classification of the classification of cooling fans, cooling fan manufacturers--Xingshunfeng Technology
The cooling fan plays an important role in the car, which reduces the influence of the machine's heat energy to a certain extent, increases the power, and extends the machine life. Nowadays, the technology and performance of cooling fans have fully reached a mature stage, and new technologies continue to appear. Fan specifications range from 8mm to 280mm, voltages are 5V, 12V, 24V, 48V, 110V, 220V, 380V, and the shapes are square, round, olive, etc. In a wide range of applications, different cooling fans have different functions and applications. This requires us to carefully understand the classification of cooling fans.
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u003cbru003e In principle, it can be divided into:
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u003cbru003e Axial fan
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u003cbru003eThe 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.
u003cbru003eIts characteristics: high flow rate, medium wind pressure
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u003cbru003eCentrifugal fan
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u003cbru003eWhen the centrifugal fan works, the blades push the air to flow in a direction perpendicular to the shaft (ie, radial), the air intake 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 if the airflow needs to be rotated by 90 degrees or when a larger wind pressure is required, a centrifugal fan must be used. Strictly speaking, fans are also centrifugal fans.
u003cbru003eIts characteristics: limited flow rate, high wind pressure
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u003cbru003eMixed flow fan
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u003cbru003eThe mixed flow fan is also called the diagonal flow fan. At first glance, the mixed flow fan is no different from the axial flow fan. In fact, the inlet of the mixed flow fan is along the axis, but the outlet is along the diagonal of the axis and the vertical axis. Line direction. Because the blades and outer cover of this fan are called conical, the wind pressure is higher. Under the same size and other comparable performance, the centrifugal fan has lower noise than the axial fan.
u003cbru003eIts characteristics: high flow rate and relatively high wind pressure
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u003cbru003eCross flow fan
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u003cbru003eTubular air flow can produce a large area of u200bu200bair flow, usually used to cool the large surface of the equipment. This wind
u003cbru003eThe inlet and outlet of the fan are 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 the barrel-shaped fan blade is relatively large. Because of the large diameter, the lower speed can be used on the basis of ensuring the overall air circulation. , Reduce the noise caused by high-speed operation.
u003cbru003eIts characteristics: low flow rate, low wind pressure
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u003cbru003e From the circuit structure, it is divided into AC cooling fan and DC cooling fan.
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u003cbru003eProfessional cooling fan manufacturer--Wenling Tongchi Technology Co., Ltd.-a professional manufacturer focusing on the development and production of DC/AC/EC axial fans, with its own brand XFS-FAN.
