The invention discloses a wireless charging device for an electric vehicle. The wireless charging device comprises a wireless energy transmitting device located on the side of a charging pile and a vehicle-mounted energy receiving device located on one side of the electric vehicle. Wherein the primary side transmitting coil comprises two symmetrically arranged primary side transmitting coils which are respectively connected in two primary side resonance circuits with the same structure, and a phase delay module is arranged between one primary side resonance circuit and the DC-AC high-frequency inverter circuit. The phase delay module is used for enabling real-time current directions in the two primary transmitting coils to be consistent; the primary side transmitting coil adopts a multi-ring bipolar spiral coil, the multi-ring bipolar spiral coil comprises three annular coils which are perpendicular to one another, a circle of spiral coil is arranged on each annular coil in an orthogonal mode, the three annular coils are not conducted with one another, and the annular coils and the spiral coils are not conducted with one another; according to the invention, the problem of charging disconnection in the wireless charging process can be reduced, and the wireless charging success rate is improved.
本发明公开了一种电动车无线充电装置,包括位于充电桩侧的无线能量发射装置和位于电动车一侧的车载能量接收装置;其中的原边发射线圈包括两个对称设置的原边发射线圈,各自连接在两个结构相同的原边谐振电路中,其中一个原边谐振电路和DC‑AC高频逆变电路之间设有相位延迟模块,所述相位延迟模块用于使两个原边发射线圈中的实时电流方向一致;所述原边发射线圈采用多环双极型螺旋线圈,所述多环双极型螺旋线圈包括三个相互垂直的环形线圈,并在所述环形线圈上以正交方式设有一圈螺旋线圈,三个环形线圈之间以及环形线圈和螺旋线圈之间均相互不导通;本发明能够减少无线充电过程中充电断触的问题,提高无线充电成功率。
Wireless charging device for electric vehicle
一种电动车无线充电装置
2023-08-25
Patent
Electronic Resource
Chinese
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