The invention relates to the technical field of foreign matter detection of a wireless energy transmission system, and particularly discloses a wireless energy transmission foreign matter detection system and method based on a self-powered coil, the system comprises a self-powered module and a foreign matter detection module, the self-powered module comprises a self-powered coil and a rectification circuit, and the foreign matter detection module comprises a foreign matter detection coil and a foreign matter detection control circuit which are connected with each other. The energy transmitting coil can generate a magnetic field, the self-powered coil is arranged to convert the magnetic field into electric energy to supply power to the foreign matter detection coil, the self-powered coil and the foreign matter detection coil are both installed above or below the energy transmitting coil, and the foreign matter detection coil and a processing circuit thereof are integrated with the energy transmitting coil. The system structure is simplified, the power supply lead of the foreign matter detection coil is greatly shortened, large interference caused by an overlong communication line is avoided, and the accuracy of foreign matter detection and the reliability of the detection system are improved.
本发明涉及无线传能系统的异物检测技术领域,具体公开了一种基于自供电线圈的无线传能异物检测系统及方法,该系统包括自供电模块和异物检测模块,所述自供电模块包括自供电线圈和整流电路,所述异物检测模块包括相连接的异物检测线圈和异物检测控制电路。本发明基于能量发射线圈本身会产生磁场,设置自供电线圈将这部分磁场转化成电能为异物检测线圈供电,而自供电线圈与异物检测线圈均安装在能量发射线圈上方或下方,将异物检测线圈及其处理电路与能量发射线圈集成,简化了系统结构,大幅度缩短异物检测线圈的供电引线,避免因通信线过长造成较大的干扰,提高异物检测的准确性,以及检测系统的可靠性。
Wireless energy transmission foreign matter detection system and method based on self-powered coil
一种基于自供电线圈的无线传能异物检测系统及方法
2023-10-27
Patent
Electronic Resource
Chinese
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