PROGRAMMABLE MULTI-FUNCTION HAIRDRYER FOR HAIR OF HAND TYPE Russian patent published in 2010 - IPC A45D20/10 

FIELD: personal use articles.

SUBSTANCE: hairdryer has an electric motor designed to propel the turbines for pumping air into the nozzle through the heating resistor and is equipped with switches of cold or hot air. At that the programmable control circuit includes a microprocessor, which is connected to a temperature sensor and the corresponding power supply circuit of elements heating the air. At that the hairdryer contains a microprocessor connected to the static pressure sensor, engine speed sensor, filter sensor, pressure sensor and engine speed sensor, ion generator, a battery of resistors with their sequential shifters and the corresponding feeding circuits of the engine. The microprocessor is also connected with an electric motor for actuating the dryer, through the transistor, which collector is connected sequentially with the triac. At that the sequence of motor/triac, including the standard features, capacitors and resistors, are powered by the same electrical device from which the heating resistor is energised. At that a programmable control circuit contains an element of visualisation and adjustment and connecting elements of the working parametres of the equipment controlled by the microprocessor. The said adjustment and connecting elements of working parametres of the equipment include a rectifier diode, semiconductor voltage regulator diode and electrolytic filter which is has also a limiting resistor and a capacitor feeding a group of series resistors with switches. At that stabilisation of the normal operating mode of the engine and the heater resistance is carried out by the sensor which signals are sent "to" and "from" an appropriate control unit of speed and temperature.

EFFECT: this design ensures consistent and safe operation of the hairdryer.

8 cl, 6 dwg