Structural Design and Test Analysis of Four-Chamber Hybrid Piezoelectric Pump
In order to improve the output performance of the piezoelectric pump,a four-chamber hybrid piezoelectric pump design was proposed by combining the advantages of piezoelectric pumps with series-parallel structure.Driven by sinusoidal alternating current(AC)in the range of 110 V,40～400 Hz,the fabricated test prototype was subjected to the conveying performance tests of gaseous medium and liquid medium.The results showed that:when pumping air,the piezoelectric vibrator working mode has negligible effect on the output performance,the maximum output flow rate can reach 3 036 mL.When pumping liquid water,the asynchronous drive is used,the output performance is better,and the output flow rate reaches a maximum of 1 067 mL when the driving frequency is 140 Hz.The test results provide some reference for the practical application of multi-chamber mixed-connection piezoelectric pumps.
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