Electric fan, also known as fan, fan for short, is a kind of household appliance that uses electric motor to drive the fan blade to rotate to accelerate the air circulation, mainly used for cooling, relieving summer heat and circulating air. It is widely used in families, classrooms, offices, shops, hospitals and hotels. The fan is mainly composed of fan head, blade, net cover and control device. The fan head includes motor, front and rear end cover, shaking head air supply mechanism, etc. The main components of the electric fan are: AC motor. Its working principle is: the electrified coil rotates under the force in the magnetic field. Electric energy is converted into mechanical energy, and at the same time, because of coil resistance, it is inevitable that part of electric energy will be converted into heat energy. The common household electric fan is essentially an axial-flow fan, that is, the flow direction of the wind is parallel to the rotating axis of the fan blade.
