The burning smell of the hair dryer is that the hair dryer is aging. The principle of the hair dryer is to heat the wire and then blow out hot air. The burnt smell should be the aging of plastic glue or something. It's better to replace it with a new one, but the risk is not very high.

The electric heating wire is used for heating, so the blower will blow out hot air, and the electric heating wire will start to heat up through the current. When the temperature rises to a certain extent, it will be red.

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The surface temperature of the heating wire is too high due to the high power or load of the heating wire. It can be considered to lengthen the resistance wire to increase the resistance value, thus reducing the wire load and reducing the surface temperature of the resistance wire. Another method is to increase the wind speed, flow rate or heating space of the blower.

The blower directly relies on the motor to drive the rotor to drive the blades to rotate. When the blade rotates, air is sucked in from the air inlet, and the centrifugal air flow thus formed is blown out from the front nozzle of the punch. When air passes through, if the heating wire installed on the heating bracket in the air nozzle has been electrified and heated, hot air will be blown out; If the selector switch does not energize the heating wire, it will blow out cold air. This is the purpose of hair dryer to dry and finalize the design.

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