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Select the communication equipment cooling fan should pay attention to
Hits：1656 Date：2016/11/15
We choose the cooling fan to the communication equipment, in addition to focusing on the cooling fan air volume can meet the cooling needs of equipment, but also need to pay attention to the point is the noise problem.
Cooling fan noise is generally attributed to two reasons: First, fan blades rotate the air generated when cutting, known as the discrete noise; Second, the cooling fan is generated when running the air collision obstacles, known as the broadband noise.
If the communication equipment on the noise requirements are relatively high, you need to start from the above two reasons, the maximum degree of noise reduction. For fan noise, the solution can be from the cooling fan manufacturers to start, requiring cooling fan manufacturers to strengthen the design capacity, continuous optimization of design high-performance, low noise airfoil; or early assessment of accurate system features, and fan supply To match, select the system in the work of high-efficiency cooling fan. To reduce the broadband noise, the solution can be optimized from the communication equipment system duct, as far as possible to eliminate the obstruction of the fan into the wind aspects of the barrier.
Human wisdom is endless, noise reduction cabinets, sound-absorbing material is also applied to the noise reduction, the maximum to reduce the noise.
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