Wireless charging device for electric vehicle and use method of wireless charging device

The invention discloses a wireless charging device for an electric vehicle. The wireless charging device comprises the electric vehicle, a wireless charging robot and a mobile intelligent terminal. According to the electric vehicle wireless charging method provided by the invention, a user only needs to park an electric vehicle in a designated area, connect the electric vehicle or a mobile phone with a wireless charging robot, confirm charging, move the wireless charging robot below a receiving coil and align the receiving coil, and lift a transmitting coil to approach the receiving coil, so that the mobile phone can check the charging state of the vehicle in real time; according to the invention, accurate positioning of wireless charging of the electric vehicle is realized, the problems of high cost of multiple coils, existence of an alignment blind area, long transmission distance and the like are avoided, the alignment accuracy and the alignment efficiency are improved, and thus the magnetic induction type