Hairdryer and constant temperature intelligent control circuit and method thereof

Abstract

The invention discloses a hairdryer and constant temperature intelligent control circuit and method thereof, belonging to the field of intelligent control. The hairdryer and constant temperature intelligent control circuit and method thereof comprise a constant temperature intelligent control circuit. The constant temperature intelligent control circuit comprises a temperature setting knob, a temperature control circuit and a detection circuit. The temperature detection circuit is arranged on an air outlet of the hairdryer. The temperature control circuit is disposed in a handle of the hairdryer. The temperature setting knot is positioned on the handle of the hairdryer. The temperature setting knob is connected with the constant temperature intelligent control circuit. The temperature detection circuit is connected with the temperature control circuit. A heating circuit and a switch tube circuit are connected with the whole rectifying circuit. The switch tube circuit is connected with the heating circuit. The constant temperature intelligent control method adopts an incremental PID control algorithm, ensuring the consistency about the outlet temperature and the setting temperature of the hairdryer. The intelligent control circuit has the advantages of effectively making the temperature regulation in the outlet of the hairdryer adaptable to the individual required comfortable temperature, avoiding the hair damage under the high temperature, keeping the hair healthy as well as protecting the hair to make people feel comfortable.

Description

technical field [0001] The invention relates to the field of intelligent control, in particular to a hair dryer and its constant temperature intelligent control circuit and method. Background technique [0002] During the use of hair dryers on the market today, the temperature produced by the hair dryer is relatively single, and the gears are too few, making it difficult to reach the comfortable temperature that meets everyone’s needs; using hair dryers for babies and pets is difficult because they have no language function. It is difficult to express the heat of the hair dryer, and it is easy to cause burns to the skin and hair. Long-term use may lead to accumulation of damage, resulting in permanent damage to the skin or hair. [0003] At present, in order to prevent the hair dryer from being too high in temperature and damage the hair, people have also taken some cooling measures, mainly using the technology of stopping heating when the heating wire reaches a high tempera...

AI Technical Summary

Problems solved by technology

Its disadvantages are: it is easy to cause burns for children who do not have the ability to express language, and it fails to solve the precise temperature control function. Although this patent can also solve the problem of high temperature hot air damage to the skin and hair, it does not fundamentally Lower the temperature, but the distance between the high temperature hot air and the skin and hair becomes farther, the user needs to take into account the influence of the distance and make adjustments from time to time when using it, the experience is poor

Its shortcoming is that the temperature adjustment control method in this patent is used for LED constant temperature and constant current control, and cannot be directly applied to the temperature control of the hair dryer, and the detection of the LED temperature value in this patent is indirectly from the radiator. The actual temperature of the LED is not intuitively reflected by the above measurement, and there is a certain gap in the control of the actual temperature of the LED; although the control method in this patent has a wide range of temperature control, there is a problem that the temperature setting is not accurate enough. The existence of inertia will cause the actual temperature to exceed the set temperature value. On the one hand, the setting is not accurate, and on the other hand, there is a problem of wasting electric energy.

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