The working principle of the fan!

Release time:

2023-09-19

Electric fan is referred to as electric fan, also known as fan, fan fan, is a kind of use of motor drive fan blades to rotate, to achieve accelerated air circulation of household appliances, mainly used for cool and cool heat and circulation of air. Widely used in homes, classrooms, offices, shops, hospitals and hotels and other places.
The common household electric fan is essentially an axial flow fan, that is, the wind flow direction is parallel to the rotation axis of the fan blade.

Working principle

In addition, small power motors such as DC motors and brushless DC motors are more and more widely used in small electric fans.

When the electric fan is working (assuming that there is no heat transfer between the room and the outside world), the temperature in the room will not decrease, but will increase. Let's analyze the reasons for the temperature rise: When the electric fan is working, because there is current through the coil of the electric fan, the wire is resistive, so it will inevitably generate heat and release heat, and the temperature will naturally rise. Because there is a lot of sweat on the body surface of the human body, when the electric fan works, the indoor air will flow up, so it can promote the rapid evaporation of sweat, combined with "evaporation needs to absorb a lot of heat", so people will feel cool.

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