Causes Of Cooling Fan Failure

Cooling fan is widely used in electric box, computer case, electric vehicle charger, medical equipment and other places. However, faults may also occur during use. Do you know the causes of cooling fan faults? Let's follow Xiao Bian to understand!
All electrical and electronic product design engineers who need cooling fan blades need to determine the amount of air required to cool a specific system. The amount of air required depends on knowing the power consumption of the system and whether enough heat is used to prevent the system from overheating. Due to improper cooling system, the service life of the system will be shortened. Therefore, the design engineer should also realize that the sales and price of the system may shorten the service life of the system and cannot meet the user's expectations.
In case of failure, it needs to be shut down for inspection and cannot be restarted, otherwise the cooling fan blades will be seriously damaged. First of all, check whether the fan is in a stall state for a long time, whether the fluctuation range of air flow pressure is significantly increased, and whether the blade resonance is damaged; There is no problem with the mechanical structure of the fuselage itself.
During installation, there are hidden dangers such as shaft imbalance or poor connection, which will cause large vibration of cooling fan blades and easily damage bearings and couplings. If these reasons are not appropriate, please consider whether the model is not appropriate.