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Time:2022-03-04Views:0
When we choose cooling fans for communication equipment, in addition to focusing on whether the air volume of the cooling fan can meet the cooling requirements of the equipment, we also need to pay attention to the noise problem.
The causes of cooling fan noise are generally attributed to two points: one is generated by cutting air when the fan blades rotate, which is called discrete noise; the other is generated when the airflow generated by the cooling fan collides with obstacles, which is called broadband noise.
If communication equipment has high requirements on noise, it is necessary to start from the above two reasons to reduce noise to a greater extent. For the noise generated by the rotation of the fan blades, the solution can start with the cooling fan manufacturer, requiring the cooling fan manufacturer to strengthen the design capability, and continuously optimize the design of high-performance, low-noise airfoils; With the cooperation of the business, choose the cooling fan that is in the high-efficiency working range in the system. For reducing broadband noise, the solution can start from optimizing the air duct of the communication equipment system and eliminating the obstacles that block the air intake of the fan as much as possible.
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