A wireless power transfer system for mobile-stationary compatible electric vehicles

Abstract

The invention discloses a moving-static compatible wireless electric energy transmission system for an electric automobile. The wireless electric energy transmission system comprises two electric metal rails laid underground, wherein metal wheel hubs on both sides of the electric automobile are insulated through insulation connecting pieces arranged at both ends of an axle, and capacitors are formed by the metal wheel hubs and the metal rails through tires; electric brushes for leading out electric energy are respectively arranged on the metal wheel hubs; the electric brushes on the metal wheel hubs, on the same side of the electric automobile, are connected to the same input end of a charging network. Through the adoption of the wireless electric energy transmission system disclosed by the invention, wireless electric power transmission during moving can be realized through the automobile tires and a base, and quick efficient wireless charging can be realized through resonance; besides, the situation that heavy coils are mounted in the automobile is avoided, so that the space needed to be modified in the automobile is small. The wireless electric chargeable automobile adopting the wireless electric energy transmission system disclosed by the invention can be used in regions where charging networks are not developed, the use of heavy and expensive storage batteries for conventional electric automobiles is avoided, and the energy loss during charging and discharging is smaller.

Description

technical field [0001] The invention belongs to the field of wireless power transmission, relates to an electric vehicle, in particular to a wireless power transmission system for a mobile-stationary compatible electric vehicle. Background technique [0002] Charging technology has always been the main bottleneck restricting the rapid development of the pure electric vehicle industry. The charging time of five or six hours has discouraged ordinary consumers, especially in areas with underdeveloped charging networks. Users have serious "mileage anxiety". Even Tesla's Super charging piles can't completely solve the problem. In addition, electric vehicle batteries are usually heavy and expensive, and there is a lot of energy loss during charging and discharging. [0003] Electric vehicle wireless charging usually adopts the method of coil electromagnetic induction, but because the magnetic field generated by the coil radiates to the secondary coil, there will be a large amount...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems caused by the existing wireless charging technology, and to provide a wireless power transmission system for mobile-stationary compatible electric vehicles, which can improve energy transmission efficiency and realize wireless charging of vehicles

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