一种新型单腔双振子压电泵的结构设计和性能试验

为优化单腔双振子压电泵的结构,提高输出性能,设计了一种新型结构的单腔双振子压电泵。将新设计结构同前期设计结构进行了比较,并对两种结构的试验样机进行了输出流量测试。试验显示,新结构的输出流量是前期结构输出流量的2倍,最大流量可达800mL/min。将新结构加工了不同腔体初始容积样机,得到了压缩比对泵输出性能的影响。试验发现,当腔体高度为1.2mm,工作时的压缩比为1/46,此时单腔双振子压电泵整体输出效果最好。分析了单腔双振子压电输送液体和气体时工作特点,得到泵输送液体介质时最佳工作频率点远远低于输送气体介质。

Structural Design of a New Single-chambered Piezoelectric Pump with Double Actuators

In order to optimize the structure of single-chambered piezoelectric pump with double actuators to improve the output performance,and design a new structure of it.The structure of the new design with pre-designed structure compared to experimental prototype output flow-rate test of the two structures.The trials have shown that the new structure of the output flow rate is 2 times the pre-structure the output flow rate,maximum flow rate of up to 800mL/min.The new structure pump of different initial chamber volume were designed and manufactured,Compression ratio on pump output performance was obtained.The study found that when the chamber height is 1.2mm,compression ratio of 1/46,then the overall output effect of pump is best.The working characteristics of single-chambered piezoelectric pump with double actuators conveying the liquid and the gas were analyzed,it shows that when pumping the liquid medium the best working frequency is much lower than the gas medium.