Distance sensing automatic temperature adjustment hair dryer

Abstract

The invention relates to a distance-sensing automatic temperature-regulating electric hair dryer. It mainly solves the problem that the outlet air temperature of the existing hair dryer cannot be automatically adjusted according to the change of the distance between the hair dryer and the hair, and the hot air with a higher temperature is likely to cause damage to the hair quality or scald the scalp. It is characterized in that it also includes a single-chip microcomputer (3), an infrared probe (4) and a thyristor (5), and the infrared probe (4) is connected to two signal input terminals (pin 5 and pin 6) of the single-chip microcomputer (3). , the signal output terminal (pin 7) of the single chip microcomputer (3) is connected to the control pole of the thyristor after being connected in series with the resistor (R3), and the normally closed contact of the function changeover switch is connected between the heating circuit (1) and the blowing circuit (2) Point (K1 / 2). This distance-sensing automatic temperature-adjusting hair dryer uses an infrared probe to detect the distance between the blower nozzle and the hair (or scalp), and intelligently controls the heating wire to cut off the power, which can effectively avoid the damage of high-temperature hot air to the hair or scalp.

Description

technical field [0001] The invention relates to an electric hair dryer, in particular to an electric hair dryer with distance induction and automatic temperature regulation. Background technique [0002] A hair dryer is a commonly used hairdressing tool. It is mainly composed of a shell, a motor, fan blades and electric heating elements. The electric heating element usually uses electric heating wires. The motor is equipped with fan blades. Inhaled, heated by an electric heating element, and blown out of hot air from the air duct. Hair dryers currently on the market include a heating circuit and a blowing circuit. The temperature and wind speed of the hair dryer are adjusted through a two-speed or three-speed temperature control switch and an air volume control switch. When the hair dryer is close to the hair and scalp, if the control is improper or negligent , the hot air with a higher temperature can easily damage the hair and even burn the scalp. The temperature of the a...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiency that the air outlet temperature of the existing hair dryer cannot be automatically adjusted according to the distance between the hair dryer and the hair, and the hot air with a higher temperature is likely to cause damage to the hair quality or burn the scalp, the present invention provides a distance Induction automatic temperature adjustment hair dryer, the distance induction automatic temperature adjustment hair dryer uses an infrared probe to detect the distance between the hair dryer and the hair (or scalp), and intelligently controls the heating wire to cut off the power, which can effectively avoid high temperature hot air on the hair or scalp damage

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