Miniature wind-power piezoelectric generator

The invention discloses a miniature wind-power piezoelectric generator, which is simple in structure, high in electromechanical conversion efficiency and large in power density. According to an energy conversion mode, the miniature wind-power piezoelectric generator can be divided into two parts, namely an air-driven turbine mechanism and a piezoelectric generator body, wherein the air-driven turbine mechanism converts air-driven mechanical energy into sustainable and stable rotary mechanical energy; and the piezoelectric generator body converts the rotary mechanical energy generated by the air-driven turbine into electric energy and mainly comprises an impulse wheel plate, an elastic element and a piezoelectric sheet. A working process of the miniature wind-power piezoelectric generator is as follows: the air-driven turbine drives the impulse wheel to rotate under blowing of wind, the impulse wheel plate continuously and periodically impacts a piezoelectric material on the elastic element in the rotation process, and the piezoelectric material suffers from the pressure and converts the impact and deformation into electric energy according to the direct piezoelectric effect of the piezoelectric material. A lead wire is connected to the piezoelectric material and used as an electrode of the generator, and a wire which is led out from one surface of the piezoelectric material, which is in contact with the elastic element, is used as another output electrode of the generator.