智能井盖的钹式压电发电装置研究

Research on Cymbal Piezoelectric Generating Device for Smart Manhole Cover

智能井盖的应用减小了人工巡查的难度,降低了人们的生命财产安全风险。该文研究了一种钹式压电能量收集器,有效地提高了智能井盖无线监测节点电池的续航能力,降低了人工巡查的成本。分析了收集器的工作原理,采用ANSYS Workbench软件进行仿真优化,研究了对钹式压电能量收集器输出性能影响的关键因素。加工组装了钹式发电装置样机并完成了测试。结果表明,样机在脉冲宽度250 ms、冲击载荷0.5 MPa下,输出开路电压为102 V,输出功率为4.11 mW,有效地提高了井盖监测节点的续航能力。

The application of intelligent manhole covers greatly reduces the difficulty of manual inspections and reduces the safety risks of people's lives and properties.The article studies a cymbal piezoelectric energy harvester,which effectively improves the battery life of the smart manhole cover wireless monitoring node battery and reduces the cost of manual inspections.The paper analyzes the working principle of the collector,and uses ANSYS Workbench software for simulation optimization,and also studies the key factors affecting the output performance.The prototype of the cymbal-type power generation device was processed and assembled,and the test was completed.The results show that the prototype has an output open circuit voltage of 102 V and an output power of 4.11 mW under an impact load of 250 ms pulse width and 0.5 MPa,which can effectively improve the endurance of the manhole cover monitoring node.