Non-resonant self-adaptive reversible micro piezoelectric pump device

The invention relates to a non-resonant self-adaptive reversible micro piezoelectric pump device, and belongs to the field of fluid transmission and control. A self-adaptive piezoelectric pump is composed of an upper cover, a pump body, a lower cover, a sealing ring and piezoelectric vibrators as a whole, wherein the three piezoelectric vibrators are connected and sealed with the sealing ring through bolts, and flow channels in the two sides communicate with a middle pump cavity through valve seats at the two sides; and a sensing unit with a small area and a drive unit with a large area are divided on a surface electrode of piezoelectric ceramic by the piezoelectric vibrators through an electrode division method. The non-resonant self-adaptive reversible micro piezoelectric pump device hasthe following characteristics and advantages: the drive voltages and frequency of the piezoelectric vibrators of a power part are changed through monitoring the working states of the piezoelectric vibrators, so that self-ada