How the hair dryer works
The hair dryer directly uses the motor to drive the rotor to rotate the air blade. When the air blade rotates, the air is drawn from the air inlet, and the resulting centrifugal airflow is blown out of the front mouth of the air duct. When the air passes through, if the heating wire on the heating support in the air nozzle is heated up, the hot air is blown out; if the selection switch does not power up the heating wire, the cold air is blown out. Hair dryer is used to achieve the purpose of drying and shaping.
Structure and function of hair dryer
1. Shell. It is the internal machine piece of protection, but also the exterior decoration piece.
2. Motor and wind blades. The motor is installed in the housing, and the wind blade is installed on the shaft end of the motor. When the motor rotates, the air is inhaled by the air inlet and blown out by the air outlet.
3. Electric heating components. The electric heating element of the hair dryer is made of the electric heating wire around, which is installed in the air outlet of the hair dryer. The wind discharged by the motor is heated by the electric heating wire in the air outlet, and turns into a hot wind to send it out. Some hair dryers in the electric heating element near the installed thermostat, when the temperature exceeds the predetermined temperature to cut off the circuit, play a protective role.
4. Windshield. Some hair dryers have a round windshield at the air inlet to adjust the air intake.
5. Switch. Hair dryer switch generally with white means "stop", red means "hot wind", blue means "cold wind". 
