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提出了一种新颖的非对称群峰结构无阀压电泵。利用泵底的空间,沿泵的出入口轴线方向开发出非对称群峰结构,从而在泵腔内部形成串联的渐扩/渐缩流道,替代了传统的安装在泵腔外的渐扩/渐缩流管。当泵工作时,非对称群峰结构能驱使流体向单一方向流动。建立了数学模型以表达该泵的平均能量损失与流量之间的关系,并分析了该泵的工作原理。实验验证了理论分析的正确性,当一个坡面角固定为90°,而另一坡面角在10°～60°之间变化时,实验数据与理论计算的误差<10%。
A novel asymmetric group peak structure valveless piezoelectric pump is proposed. Utilizing the space at the bottom of the pump, an asymmetric group peak structure is developed along the axis of the pump’s inlet and outlet to create a series of convergent / tapered flow paths inside the pump chamber, replacing the traditional gradual expansion / Shrink tube. As the pump works, asymmetric peaks and peaks drive the fluid to flow in a single direction. A mathematical model was established to show the relationship between the average energy loss of the pump and the flow rate, and the working principle of the pump was analyzed. Experiments verify the correctness of the theoretical analysis. When the angle of one slope is fixed at 90 ° and the angle of the other slope varies from 10 ° to 60 °, the experimental data is less than 10% of theoretical error.