The hair dryer is a combination of a set of electric heating wires and a high-speed small fan. When electrified, the heating wire will generate heat, and the wind blown by the fan will become hot air after passing through the heating wire. If only a small fan rotates and the electric heating wire is not hot, then wind is blown out instead of heat.
The wind blown by the hair dryer belongs to dry wind. If it is used for too long, it is easy to cause water loss and thermal damage. The secret to minimize the damage is to pat the water off your hair with a towel, then gently comb your hair with your hands, and then use a hair dryer.
Hair dryers are mainly used for hair drying and styling, but they can also be used for local drying, heating and physical therapy in laboratories, physical therapy rooms, industrial production and artistic design. According to the type of motor used, it can be divided into AC series excitation type, AC shielded pole type and DC permanent magnet type.
Series-excited hair dryer has the advantages of large starting torque and high rotating speed, and is suitable for manufacturing high-power hair dryers. The disadvantage is that the noise is high, and the commutator has certain interference to telecommunication equipment. The advantages of hood blower are low noise, long service life and no interference with telecommunication equipment. Disadvantages are slow speed, poor starting performance and heavy weight. The advantages of permanent magnet hair dryer are light weight, high rotating speed, simple manufacturing process, low cost, good quality and low price.
Although there are many types of hair dryers, their structures are similar, and they are all composed of shell, handle, motor, fan blade, electric heating element, windshield, switch, power cord and so on.
Hair dryer (household appliances) _ Baidu Encyclopedia