Why does the cooling fan fail?

With the needs of machinery and equipment, cooling fans are used in many fields. Normally, the fan can only discharge heat normally to ensure the operation of the machine. Otherwise, various failures will occur, such as the shutdown of machinery and equipment, so we must reduce the occurrence of failures. Understand the cause of the failure and deal with it in time, so why does the cooling fan fail? The cooling fan manufacturer-Ruiapple will introduce to you.

First, the reason for the design of the cooling fan:

The design of the cooling fan is improper, and the cooperation of the parts is not considered in the design, and the dynamic characteristics are poor, causing vibration or noise when the machine is running. Unreasonable structure and improper use of steel can 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 are prone to 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 cooling fan is improperly installed in the mechanical equipment, the parts are misplaced, or the shaft system is poorly aligned, resulting in a large preload, improper placement of the rotor, and failure to perform inspections and repairs in accordance with 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.

Shenzhen Ruiapple Electronics Co., Ltd. was established in 2000. For 20 years, it has focused on R&D, manufacturing and sales of DC AXIAL FAN, AC AXIAL FAN, CENTRIFUGAL FAN, BLOWER, EC FAN, DC MOTOR, EC MOTOR and other full series of cooling and ventilation products An honest company.