A dynamic wireless charging receiving device for electric vehicles

Abstract

The invention discloses a dynamic wireless charging receiving device of an electric vehicle. The device comprises a charging road section and a transmitting coil arranged on the road surface of the charging road section, comprising a driving wheel and a driven wheel respectively installed in front of the chassis of the charging vehicle and at the rear two ends thereof, and a drive belt with circulating drive is sleeved between the driving wheel and the driven wheel. Comprises a radial guide rail fixed on an annular outer wall of the transmission belt, a sliding sleeve is slidably fitted on theradial guide rail, and a receiving coil is installed at the bottom of the sliding sleeve through a longitudinal telescopic rod. The invention realizes the continuous coupling of the transmitting coiland the receiving coil through the circulating motion of the two modules on the guide rail, thereby realizing the uninterrupted charging of the electric vehicle and ensuring the continuity of the current. Under the action of radial guide, electric push rod and ball-cage universal joint, the receiving coil can keep precise coupling with the transmitting coil, so as to achieve the purpose of improving the charging efficiency.

Description

technical field [0001] The invention relates to the technical field of electric vehicle charging, and mainly relates to a dynamic wireless charging receiving device for electric vehicles. Background technique: [0002] With the aggravation of energy shortage and environmental pollution, electric vehicles as new energy vehicles have received widespread attention, and electric vehicles will definitely become the mainstream travel tool in the near future. As for the charging method of electric vehicles, the traditional station static wired charging is gradually unable to meet people's growing travel needs due to space constraints and charging time issues. The wireless charging technology has the advantages of convenience and safety, and has become a hot research direction in recent years. The most widely used types of wireless charging are electromagnetic induction and magnetic resonance. With the further development of wireless charging technology, in order to be able to cha...

AI Technical Summary

Problems solved by technology

[0003] The disadvantage of the existing technology is that the speed of the vehicle is fast when the vehicle is running normally, and the vehicle-mounted electromagnetic receiving device moves quickly relative to the road surface electromagnetic transmitting device. When the coils are in the facing state, the charging efficiency reaches the highest. When the vehicle is moving at high speed, it cannot be guaranteed that the centers of the two are always on the same central axis. If the transmitting coil and the receiving coil are offset, the charging efficiency will be greatly reduced; at the same time, due to the existing Due to the limitation of factors, too large vertical distance between the transmitting coil and the receiving coil will also reduce the charging efficiency

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