Causes of cooling fan failure

Cooling fans are widely used in electrical boxes, computer cases, electric vehicle chargers, medical equipment, and other places. But there is also a possibility of malfunctions during use. Do you know the reasons for the failure of the cooling fan? Let's follow the editor to learn more!
All electrical and electronic product design engineers who require cooling fan blades need to determine the amount of air required to cool a specific system. The amount of air required depends on understanding the power consumption of the system and whether sufficient heat is used to prevent the system from overheating. Due to improper cooling systems, the service life of the system can be shortened. Therefore, design engineers should also be aware that the sales and pricing of the system may shorten its service life and fail to meet user expectations.
When a malfunction occurs, it needs to be turned off for inspection and cannot be restarted, otherwise it will seriously damage the cooling fan blades. Firstly, check whether the fan has been in a stall state for a long time, whether the fluctuation range of airflow pressure has significantly increased, and whether the resonance of the blades is damaged; The mechanical structure of the fuselage itself is not a problem.
During the installation process, there are hidden dangers such as shaft imbalance or poor connection, which can cause significant vibration of the cooling fan blades and easily damage the bearings and couplings. If these reasons are not suitable, please consider whether the model is not suitable.