Non - resonant type self -adaptation miniature piezoelectric pump device that can commutate

The utility model relates to a non - resonant type self -adaptation miniature piezoelectric pump device that can commutate belongs to fluid transmission and control field. Self -adaptation piezoelectric pump is whole to comprise upper cover, the pump body, lower cover, sealing washer and piezoelectric vibrator, 3 individual piezoelectric vibrator is connected and seals through bolt and sealing washer, and the both sides runner is through both sides disk seat and middle pump chamber intercommunication, the piezoelectric vibrator adoption is cut apart electrode method and cut apart less sensingunit of an area and the great drive unit of area on piezoceramics's surface electrode. Characteristic and advantage: through monitoring piezoelectric vibrator's operating condition, change the power piezoelectric vibrator's of portion driving voltage and frequency, can realize defeated outflow's self -adaptation accurate control, integrated level / output precision height, through the aperture ofmonitoring initiative valv