What are the requirements for the fan motor

In daily life, the application of fans can be said to be quite extensive, including ordinary fans, industrial fans, computer fans, car fans, etc. Many devices need fans, the main purpose is to achieve cooling.
How to choose a fan motor
The core component of the fan is the motor. With a high-quality motor, the fan will run more stably and the power will be stronger. As a fan manufacturer, what are the requirements for the fan motor? how to choose?
1. The motor fan is equipped with an instruction manual, product qualification certificate, circuit diagram, and packing list. Be sure to check the packing list and check the parts when purchasing.
2. Check the appearance of the motor fan: carefully check whether the screen and fan blades of the motor fan are obviously deformed. When rotating, the blades should be light and flexible.
3. Check the starting performance: The starting performance is an important quality indicator of the motor fan. During the inspection, when the rated voltage of the power supply is 85%, the motor fan should be able to start from a static state and run normally, the shorter the time required for the fan motor to start to operate normally, the better the starting performance of the motor fan.
4. Check the speed regulation performance: After power-on, the mechanical transmission part of the fan should have no abnormal sound. When the electric fan runs at high, medium, and low speeds, the motor and fan blades should be stable, with little vibration and low noise.
5. Check the leakage situation: After the motor fan is powered on, if you feel numbness when you touch it with your hand, please use an electronic tester to test it. If there is current, you can judge the leakage of the casing.
6. Check the motor fan operation: After the motor fan runs continuously if the surface of the housing is very hot, it means that the temperature is too high.