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Why does the silent fan fail?

With the needs of machinery and equipment, silent fans are used in many fields. Generally, normal heat dissipation is required to ensure the operation of the machine. Otherwise, various failures will occur, such as the shutdown of machinery and equipment. Therefore, we must reduce the occurrence of failures. Understand the cause of the failure and deal with it in time, so why does the silent fan fail?

1. Reasons for silent fan design:

The silent fan engineer did not properly design, did not consider the cooperation of the parts in the design, poor dynamic characteristics, resulting in vibration or noise when the machine is running. Unreasonable structure and improper use of steel will cause stress concentration. The fuselage material is prone to cracks, the material of the parts is not good, the strength cannot reach the standard, and accidents may occur during use.

Second, the reasons for the deterioration of the cooling fan itself:

Long-term operation of the machine causes fatigue of shafts and other parts, partial damage to the rotor, and surface pitting and partial abrasion of parts affected by the impact force.

Third, the reasons for improper operation of the cooling fan:

The process parameters of the machine deviate far from the design value, which will often cause the machine to maintain over-speed, over-load operation, or low-speed, low-load operation during operation, and cannot reach the working performance of the machine; the operating point is close to or falls into the critical speed zone , The lubrication or cooling of the radiator fan is not in place; improper operation during starting and stopping the machine or in the process of increasing and decreasing speed, causing the machine body temperature to fail to reach, uneven thermal expansion, or overheating, which causes the machine to anneal and lose its original strength .

Fourth, the reasons for the installation and maintenance of the cooling fan:

The silent fan is improperly installed in the mechanical equipment, the parts are misaligned, or the shaft system is poorly aligned, resulting in a large preload, improper placement of the rotor, and failure to perform maintenance according to regulations, which destroys the original coordination system of the machine.

Shenzhen Ruiapple Electronics Co., Ltd. is a professional fan manufacturer with 20 years of R&D, production and sales experience. Main business: cooling fan, DC fan, AC fan, silent fan, centrifugal fan, blower and other full range of heat dissipation and ventilation products as an integrity enterprise, the series of cooling fan products have obtained UL, CUL, CE, CCC, ROHS, etc. International Certification.