The blower directly drives the rotor to rotate the fan blades by the motor. When the fan blades rotate, air is sucked in from the air inlet, and the resulting centrifugal airflow is blown out by the front nozzle of the fan. When the air passes through, if the heating wire installed on the heating bracket in the tuyere has been energized to become hot, then blowing out hot air; if the selection switch does not make the heating wire energized to generate heat, then blowing out cold wind. The hair dryer is here to achieve the purpose of drying and shaping.
The selection switch on the handle of the hair dryer is generally divided into three gears, that is, the closed gear, the cold wind gear, and the hot wind gear, and it is attached with the signs of white, blue, and red. Some hair dryers are also equipped with a motor speed switch on the handle, which is used to select the size of the air volume and the temperature of the hot air. Various types of hair dryers are equipped with a rotatable circular air hood behind or on the side of the shell. Rotating the hood to adjust the cross-sectional size of the air inlet can adjust the air speed and the temperature of the hot air.
The working principle of the temperature control switch of the hair dryer: the hair dryer is equipped with a temperature protector (thermostat) near the heating element of the heating element. When the hair dryer is working in the hot air position, the temperature control element can work normally under the condition of the fan , Automatically connect the circuit, and automatically cut off the circuit when encountering special conditions (such as overheating of electric heating elements)
