Non-contact power supply system of moving vehicle

Abstract

The invention relates to the technical field of electric vehicle charging, in particular to a non-contact power supply system capable of providing power for a moving vehicle online. The system comprises an emitting part and a receiving part, the emitting part comprises a magnetic core rail laid on the ground and an emitting coil wound on one portion of the magnetic core rail, the emitting coil is connected with a power source module through a power oscillation unit, the power oscillation unit is used for converting direct current into high-frequency alternating current to be supplied to the emitting coil, and the emitting coil generates an alternating magnetic field and transmits magnetic energy through the magnetic core rail; the receiving part comprises a movable magnetic core installed on the vehicle and a receiving coil wound on the movable magnetic core, the receiving coil is connected with an electricity consumption unit of the vehicle through a rectification and filtering unit, the movable magnetic core is close to the magnetic core rail to receive the magnetic energy, and the magnetic energy is converted into electric energy through the receiving coil and then output. The magnetic field is gathered and transmitted through the magnetic core rail, electromagnetic radiation is not caused, and the electric leakage risk does not exist.

Description

technical field [0001] The invention relates to the technical field of electric vehicle charging, in particular to a mobile vehicle contactless power supply system capable of providing online electric energy to the mobile vehicle. Background technique [0002] Electric vehicles are gradually getting rid of their dependence on fossil energy, but the energy storage of on-board batteries is limited, the battery pack is bulky and expensive, the battery life of electric vehicles is limited, and the charging time is much longer than that of fuel vehicles. These factors restrict the development of electric vehicles. [0003] Contactless energy transmission is a new type of power transmission technology. It does not need to transmit energy through physical connection. It can transmit energy to the vehicle during the moving process of the vehicle, which can meet the charging and discharging power and continuous driving requirements of the car. The power supply system and the load have...

AI Technical Summary

Problems solved by technology

When the vehicle moves, the mutual inductance parameters of the coils change, and it is difficult to maintain a continuous high level of energy transmission. If the transmitting coil is used to maintain the mutual inductance parameters that are much larger than the size of the receiving coil, the efficiency will be severely reduced.

When using road wireless power supply, the road below needs to be covered with transmitting coils, there is a risk of leakage, large electromagnetic radiation, and low efficiency

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