Appliance common sense: Fan Works

① electric room fan mainly by the fan head, blades, grilles and control devices and other components, including the fan head motor, end cap and shook his head before blowing institutions. Fan is a fan driven by the motor rotation, to achieve the air speed up the flow of household appliances, mainly for the cool and hot weather and clear the air.
② fans are the main components: the AC motor. Its working principle is: the coil is energized to rotate by force in a magnetic field, the electrical energy into mechanical energy, and because the coil resistance, it is inevitable that there are some electrical energy to be converted into heat. Assuming no heat transfer with the outside room, so the indoor temperature will not be lowered when the fans work, but will rise.
③ Why do people feel when using fans will cool it? Because the body's surface has a lot of sweat, When bathroom ventilating fans work together, indoor air can flow together, so we can promote the rapid evaporation of sweat is known that evaporation need to absorb a lot of heat, so we will feel cool.