Resonant wireless energy transmission device

Abstract

The invention discloses a non-radioactive magnetic resonant energy transmission system based on a serial-parallel circuit model. The system comprises a pair of congruent coils and a circuit consisting of additional capacitors, and is characterized in that: the circuit connected with the coils is a serial-parallel circuit model, namely that the leads at the two ends of the coils are connected in parallel with a capacitor; then the parallel circuit is connected in series with another capacitor; and finally a transmitting coil is connected with a high-frequency transmitting power supply, and a receiving coil is connected with a receiving load. The novel system has the advantages of a serial circuit and a parallel circuit model, the transmission efficiency is remarkably improved, and the transmission distance is increased. Meanwhile, the maximum energy transmission efficiency under different distances can be realized by adjusting the serial capacitor and the parallel capacitor.

Description

technical field [0001] The present invention relates to a new type of long-distance high-efficiency wireless energy transmission system, in particular to a new type of simple structure, convenient design, non-radiative magnetic resonance wireless energy transmission series-parallel complete circuit model, which can be applied to wireless charging electronic products or In wireless power transmission, the efficiency of wireless charging can be significantly improved within the distance required by the design, or the energy transmission distance can be greatly increased while maintaining high efficiency. Background technique [0002] Magnetically coupled resonant wireless energy transmission technology is a world-leading topic proposed in the past two years. This technical idea was first proposed by the research group of Marin Soljacic, an assistant professor of the Department of Physics at the Massachusetts Institute of Technology (MIT), in November 2006 at the AIP Industrial ...

AI Technical Summary

Problems solved by technology

The energy transmission efficiency at a distance of twice the diameter is only about 20%, and most of the energy is dissipated in the space, which makes this scheme impractical for practical application at present

Another disadvantage of this solution is that a total of four primary and secondary coils are required, which is bulky and complex in design, and is not suitable for designing portable wireless charging products in the future.

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