The invention discloses a sectional type dynamic wireless charging magnetic coupling system of an electric automobile. The sectional type dynamic wireless charging magnetic coupling system comprises asectional type dynamic wireless charging system transmitting device and a dynamic wireless charging system receiving device, wherein the sectional type dynamic wireless charging system transmitting device is formed by sequentially laying a plurality of transmitting coils on a road surface at intervals in the running direction of the automobile; the dynamic wireless charging system receiving device consists of receiving coils installed on a chassis of the electric automobile; each of the transmitting coils and the receiving coils is mainly composed of a double-rectangular coil, a ferrite magnetic core surface and a shielding aluminum plate which are sequentially arranged from top to bottom, and each double-rectangular coil is composed of an upper side rectangular coil and a lower side rectangular coil which are arranged at intervals in the direction perpendicular to the automobile running direction. By optimizing the distance between the transmitting coils and the size of the receivingcoils, the change of the coupling coefficient can be effectively reduced, relatively stable output power is obtained, the reliability of the system is improved, and efficient electric energy transmission is completed; and meanwhile, the shielding aluminum plates and the ferrite magnetic core surfaces are added to shield a magnetic field, so that electromagnetic leakage is effectively reduced.
本发明公开了一种电动汽车的分段式动态无线充电磁耦合系统。本发明包括由若干个发射线圈沿汽车行驶方向在路面上依次间隔铺设而成的分段式动态无线充电系统发射装置和由安装在电动汽车底盘上的接收线圈组成动态无线充电系统接收装置;发射线圈和接收线圈均主要由双矩形线圈、铁氧体磁芯面和屏蔽铝板依次上下放置而成,双矩形线圈由上侧矩形线圈和下侧矩形线圈垂直于汽车行驶方向无间隔排列组成。本发明通过优化发射线圈间的间距和接收线圈的大小,可以有效地降低耦合系数地变化,得到一个相对稳定的输出功率,增加系统的可靠性,完成高效电能传输。同时,还添加了屏蔽铝板和铁氧体磁芯面,对磁场进行屏蔽,有效地降低了电磁泄露。
Sectional type dynamic wireless charging magnetic coupling system of electric automobile
一种电动汽车的分段式动态无线充电磁耦合系统
2020-12-18
Patent
Elektronische Ressource
Chinesisch
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