【摘要】 为提高压电泵的输出压力,结合多腔体串联压电泵的工作特点,采用一种带有伞形截止阀的方式,设计了一种堆叠式四腔串联压电泵。该种结构设计使泵具有结构紧凑,腔体内流道较短,几何体积较小等优点。对四腔串联压电泵在不同个数振子驱动下进行输出流量与输出压力测试,结果发现,多振子工作时输出流量约为单个振子工作时输出流量2n^1/2倍（n为驱动振子个数）,当2个或3个振子工作时,输出压力约为n倍。在110 V正弦交流电驱动下,所设计的四腔串联压电泵最大输出水的流量可达980 mL/min,最大输出压力可达123 kPa。更多还原

【Abstract】 In order to enhance the output pressure of the piezoelectric pump,combined with the working characteristics of multichamber in series connection pump,using an umbrella-shaped check-valve,a stacked in series connection four-chamber piezoelectric pump was designed. The design had compact pump in structure,shorter flow channels inside the chamber,smaller geometry volume,and other advantages. The output flow-rate and pressure of the in series connection four-chamber piezoelectric pump were tested by drived under piezoelectric vibrators of different numbers. The results show that the output flow-rate drived by multi-piezoelectric vibrators is about times as much as drived by sigle piezoelectric vibrator( n is the number of vibrators). When driven by 2 or 3 vibrators,the output pressure is about times. When powered by 110 V AC drive voltage,the maximal output flow-rate and pressure of the designed pump are 980 mL / min and 123 kPa respectively.更多还原