DC cooling fan often encountered a few problems, cooling fan is mainly used to deal with industrial appliances, machinery, power supply cooling problems, reduce the bottom of the working environment temperature of the equipment, to extend the use of equipment life. So if the cooling fan has problems, it will also lead to the equipment can not work properly, which in turn affects the efficiency of industrial production. Understand the common problems of cooling fan in use, can be prevented in advance.

The problem of the heat dissipation fan motor does not turn, if the centrifugal fan appears this phenomenon, you must cut off the power supply first, and then check. If the electrified inspection is likely to jeopardize the maintenance personnel's birth name according to the safety, then it constitutes a great hidden danger according to the safety. In fact, as long as the power supply involves many problems with the cooling fan, it is necessary to block the power supply to ensure safety.

Noise is a very common problem in cooling fan applications. Excessive noise is always annoying, so if you find excessive noise from the cooling fan in use, check for loose bolts. Also check for loose impellers on the cooling fan. In many cases, the noise of a distributed heat fan is directly related to the blades, so once the cooling fan becomes noisy, it is generally accepted that the impeller portion of the cooling fan should be checked first.

Bearing vibration of the cooling fan can lead to problems such as bearing and blade damage, loose bolts, and damage to the housing and duct. In serious cases, it will directly lead to the normal operation of the fan. There are many reasons why the cooling fan bearing vibration exceeds the limit. We should analyze the reasons according to different phenomena and take corresponding measures to deal with them in order to get twice the result with half the effort.

The noise of the DC cooling fan can not be shaw off, which is also recognized.

System resistance: In general, the shell of the inlet and outlet noise is a very large part of the system resistance. The greater the air flow, the greater the noise and the greater the system resistance. Therefore, in order to reduce the bottom noise, it is necessary to adjust the system's anti-yin to a very small. DC cooling fan speed and size: Since the faster the speed, the higher the noise, the noise of high-speed fans is generally much larger than that of low-speed fans. In the case of the same cooling capacity, try to choose a low-speed, large DC cooling fan.

DC cooling fan raw materials: the raw material of the cooling fan determines the noise level generated by the vibration of the fan rolling. Fourth, the power supply voltage: sometimes unstable voltage can also lead to increased fan noise. The higher the voltage, the higher the noise, otherwise the lower the noise.

The planning of the fan: the planning of the fan can not only determine the durability of the fan, but also one of the criteria for measuring the quality of the fan. The planning of a good cooling fan is very precise yet. The planning of the number of fan blades and the arrangement of the frame, as well as the distance between the fan components and the scale of the fan are appropriate, which can increase the longevity of the DC fan, but also reduce the bottom of the fan's longevity, and reduce the bottom of the fan noise.