新型机械按压能量收集装置设计与实验

Design and Experiments of a novel Mechanical Energy Harvesting Device

基于法拉第电磁感应定律,设计了一种新型的机械按压式能量收集装置。该装置通过永磁体的运动使通过线圈的磁通反转从而产生感应电动势。根据装置的设计结构,采用ANSYS有限元软件对所设计的结构进行有限元数值模拟,在永磁体运动速度为0.4 m/s时,该装置所产生的平均开路电压约为3.31 V。同时也对加工制造后的装置进行了实验测量,测得平均开路电压约为3.20 V,带负载时的平均电压约为2.76 V,平均电流约为21 mA。装置一次运动所产生的能量为103.4μJ^301.0μJ。

Based on Faraday’s law of electromagnetic induction,this paper designs a new type of mechanical pressing energy collection device.The device reverses the magnetic flux passing through the coil by the movement of the permanent magnet to generate induced electromotive force.According to the design structure of the device,use ANSYS finite element software to carry out finite element numerical simulation on the designed structure.When the movement speed of permanent magnet is 0.4 m/s,the average open circuit voltage generated by the device is about 3.31 V.At the same time,carried out experimental measurements on the fabricated device.The average open circuit voltage is about 3.20 V,the average voltage with load is about 2.76 V,and the average current is about 21 mA.The energy generated by one movement of the device is 103.4μJ^301.0μJ.