This paper reports on an innovative electromagnetic energy harvester for autonomous switches relying on a rotating magnet driven by magnetic launchers, and combined with a ferromagnetic circuit and a coil to turn the variation of magnetic flux induced by the rotating magnet into electricity. The device is able to operate on forward and backward translation movements. The energy harvester has been modeled, optimized, manufactured, characterized and integrated into a mechanical actuation system to form a complete autonomous switch that will be commercially available. The experimental output energy reaches 1.235 mJ (350 J cm⁻³) which is among the highest output energies and energy densities reached on autonomous switches in the state of the art. The electromechanical conversion efficiency is 56%, which is excellent for an energy harvester, and obtained thanks to the topology chosen for the electromagnetic converter. The energy harvester is finally connected to a diode-bridge-capacitor circuit to supply the RF emission of the commands with a Zigbee Green Power transmitter.

本文报告了一种创新的电磁能量收集器，该能量收集器依赖于由磁发射器驱动的旋转磁体，并与铁磁电路和线圈结合，将由旋转磁体感应的磁通量变化转化为电能，从而用于自主开关。该设备能够进行向前和向后平移运动。能量收集器已经过建模，优化，制造，表征并集成到机械驱动系统中，以形成可在市场上购买的完整的自主开关。实验输出能量达到1.235 mJ（350J cm ^-3）是现有技术中在自主开关上达到的最高输出能量和能量密度之一。机电转换效率为56％，这对于能量收集器而言非常出色，并且得益于为电磁转换器选择的拓扑结构而获得的。能量收集器最终连接到二极管桥电容器电路，以使用Zigbee Green Power提供命令的RF发射 发射机。