一种新型凹面磁耦合谐振式无线电能传输装置

A Novel Concave Magnetic Coupled Resonant Radio Energy Transmission Device

目前文献中,市场上多采用平面发射线圈、平面接收线圈实现磁耦合谐振式无线电能传输,弊端是传输效率不高。针对此弊端,设计并自制一新型凹面发射线圈。利用磁通门传感器测量磁场分布,结果表明,凹面发射线圈的磁场分布较平面发射线圈明显向中轴线汇聚;搭建实验电路进行对比实验,结果表明,对于相同的平面接收线圈,凹面发射线圈较平面发射线圈传输效率明显提高,高达10%。

In the current literature,the planar transmitting coil and planar receiving coil are mostly used in the market to achieve magnetic coupling resonant radio energy transmission,but the disadvantage is that the transmission efficiency is not high.To solve this problem,a new concave transmitting coil was designed and made.The magnetic field distribution was measured by fluxgate sensor.The results show that the magnetic field distribution of the concave transmitting coil is more convergent to the central axis than that of the planar transmitting coil.The experimental circuit was set up for comparison experiment.The results show that for the same planar receiving coil,the transmission efficiency of the concave transmitting coil is significantly improved by 10%compared with that of the planar transmitting coil.