公开(公告)号：US20150380950A1

公开(公告)日：2015-12-31

申请号：US14769260

申请日：2014-02-20

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Kiyoshi OGASAWARA ,  Hideaki ABE ,  Toshihiro AKIYAMA

IPC: H02J5/00

CPC classification number: H02J50/40 ,  H01F38/14 ,  H02J5/005 ,  H02J50/12 ,  H02J50/80

Abstract: A wireless power supply system includes a plurality of primary coils and a movable secondary coil. The primary coils excited by the supply of high-frequency current are configured so as to generate an alternating magnetic field by which secondary power is generated in the secondary coil. The resonance characteristics of a resonator including excited primary and secondary coils vary with the movement of the secondary coil within a varying range. The power supply frequency (fn) of the high-frequency current is set to the frequency (fp) corresponding to the intersecting point (P) between a first resonance characteristic line and a second resonance characteristic line, which correspond to the respective two ends of the varying range of the resonance characteristics and are farthest apart from each other.

Abstract translation: 无线电源系统包括多个初级线圈和可动次级线圈。 通过供给高频电流而激发的初级线圈被配置为产生在次级线圈中产生次级电力的交变磁场。 包括激发的初级和次级线圈的谐振器的谐振特性随着次级线圈在可变范围内的移动而变化。 将高频电流的电源频率（fn）设定为与第一谐振特性线和第二谐振特性线之间的交点（P）对应的频率（fp），其对应于 谐振特性的变化范围彼此最远。