Wireless energy transmission system

Abstract

The invention provides a wireless energy transmission system. By means of the fact that simplification design is conducted on a magnetic resonance transmitting module and a magnetic resonance receiving module, the signal transmitting or receiving function and the magnetic resonance function are simultaneously achieved through one antenna structure, and efficient and long-distance energy transmission is achieved by means of optimization design on a metal wire structure of the antenna structure. A first metamaterial is fixedly installed at the rear end of the magnetic resonance transmitting module, a second metamaterial is installed at the front end of the magnetic resonance receiving module, and efficiency of energy transmission of the whole wireless energy transmission system is improved. As for the whole wireless energy transmission system, the distance of energy transmission is long, equipment at the receiving end does not need to be attached to the transmitting end, energy transmission can be achieved, the degree of using freedom of the loading equipment at the receiving end is improved greatly, and convenience is brought to users.

Description

【Technical field】 [0001] The invention relates to the field of wireless energy transmission, in particular to a wireless energy transmission system based on the principle of magnetic resonance. 【Background technique】 [0002] At present, wireless energy transmission technology is mainly based on three principles, namely electromagnetic induction, magnetic resonance and radiation. The basic feature of electromagnetic induction (non-contact inductive) power transmission circuit is the separation of primary and secondary circuits. There is a gap between it and the secondary circuit, which is connected by magnetic field coupling induction. The characteristics of the electromagnetic induction type are: there is a large air gap, so that the primary and secondary sides have no electrical contact, which makes up for the inherent defects of the traditional contact type electric energy; however, the existence of a large air gap also makes the magnetic flux leakage of the system compar...

AI Technical Summary

Problems solved by technology

[0006] In the existing negative magnetic permeability artificial materials, a single artificial microstructure (generally called cell) is a single split ring structure or a derivative structure of a split ring, including a square structure, a circular structure or a polygonal structure, and the size of the microstructure Very large, especially for low-frequency band applications, the size of its microstructure has reached the decimeter level, which makes the overall volume of metamaterials too large, which brings difficulties to applications

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