1. After using for a long time, the garbage and dirt will stick to the central shaft of the motor. Once the ash layer sticks to it, the speed of the motor will drop sharply. It is conceivable that the hot air cannot be completely blown out when the motor speed is slow. Immediately after coming out, the plastic casing will become hot, and the internal parts structure will be burned immediately, and then you can smell the burnt smell of plastic and electrical appliances, and then deform. The downsides of hair dryers.
2. After all, heavy hair dryers are more expensive than light ones, because the material is better than plastic, the shell is metal and grounded for personal safety, the relative quality of the motor should keep up, and good motor lubrication and insulation are also better than plastic ones. It is better, and it is durable, easy to repair even if it is broken, and has a long life.
3. The 220v voltage input of the hair dryer is basically allocated to two parts, one is allocated to the heating wire, and the other is allocated to the bridge rectifier, which is reduced to DC and then output to the motor. After the motor rotates, the hot air is blown out. It is the principle of the whole power supply part.
4. The principle of weak hot air and strong hot air: It is controlled by the switch position. The principle is that 220v voltage enters the heating wire, and then taps on the heating wire to achieve the high and low output of the voltage. The high voltage is strong hot air, and the low voltage is Weak hot air.
4. The principle of weak hot air and strong hot air: It is controlled by the switch position. The principle is that 220v voltage enters the heating wire, and then taps on the heating wire to achieve the high and low output of the voltage. The high voltage is strong hot air, and the low voltage is Weak hot air.
