hair dryer（1）

hair dryer（1）

The hair dryer is a combination of a set of electric heating wires and a small high-speed fan. When energized, the heating wire generates heat, and the wind blown by the fan passes through the heating wire to become hot air. If only a small fan rotates and the heating wire is not hot, then only the wind will blow out but not heat. The wind blown by the hair dryer is dry. If it is used for a long time, it will easily cause moisture loss and cause heat damage. The secret to minimizing the damage is: use a towel to dry the moisture on the hair first, gently with your hands Comb your hair and then use the hair dryer.

The hair dryer is mainly used for drying and shaping hair, but it can also be used for partial drying, heating and physical therapy in laboratories, physical therapy rooms, industrial production, and art. According to the type of motor it uses, it can be divided into AC series type, AC shaded pole type and DC permanent magnet type. The advantages of series blower are large starting torque and high speed, which is suitable for making high-power blowers; the disadvantage is that it is noisy and the commutator has certain interference to telecommunication equipment. The advantages of shaded-pole hair dryers are low noise, long life, and no interference to telecommunications equipment; disadvantages are low speed, poor starting performance, and heavy weight. The advantages of permanent magnet hair dryers are light weight, high speed, simple manufacturing process, low cost, high quality and low price.

Although there are many types of hair dryers, the structure is similar, and they are all composed of shell, handle, motor, fan blade, electric heating element, wind shield, switch, power cord, etc.