The invention discloses foreign matter detection equipment and a wireless charging system, the equipment comprises a detection coil set, a detection module and an excitation coil set, the detection coil set is composed of at least one detection coil group, and each detection coil group is a balance coil; the excitation coil set is provided with at least one excitation coil group, and the excitation coil set generates a detection magnetic field; the detection coil set and the excitation coil set are arranged in an insulating manner, and the detection coil set is located in the range of the detection magnetic field; and the detection module is communicated with each detection coil group. According to the foreign matter detection equipment and the wireless charging system, the electrical parameters of each coil assembly are detected through the detection module, and foreign matter detection is achieved through change of the electrical parameters. The method has higher detection precision,the balance coil is adopted, interference to external factors can be reduced, and detection errors are reduced.
本发明公开了异物检测设备和无线充电系统,设备包括:检测线圈集、检测模块、激励线圈集,其中,所述检测线圈集由至少一个检测线圈组组成,每个所述检测线圈组为平衡线圈;所述激励线圈集具有至少一个激励线圈组,所述激励线圈集生成检测磁场;所述检测线圈集和所述激励线圈集之间绝缘设置,并且所述检测线圈集处于所述检测磁场的范围内;所述检测模块联通每个所述检测线圈组。本发明的异物检测设备和无线充电系统,通过检测模块检测每个线圈组的电参数,并通过电参数的变化实现对异物的检测。这种方式具有更高的检测精度,采用平衡线圈,还能降低对外界因素的干扰,降低的检测误差。
Foreign matter detection apparatus and wireless charging system
异物检测设备和无线充电系统
2020-04-28
Patent
Electronic Resource
Chinese
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