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A multi-target non-radiative wireless power transfer system based on metamaterials

A technology for wireless energy transmission and metamaterials, applied in circuit devices, electrical components, etc., can solve problems such as increasing design difficulty, reducing practicability, and complex feeding networks, and achieving miniaturization, low cost, and simple process. Effect

Active Publication Date: 2018-10-19
SHANGHAI COUPLING INTELLIGENT TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still some technical bottlenecks in the technology
For example, the traditional multi-target wireless power supply generally uses phased array antenna technology. Although this technology can realize multi-point magnetic field distribution in the target area, the complex feeding network increases the difficulty of design and reduces the practicality.

Method used

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  • A multi-target non-radiative wireless power transfer system based on metamaterials
  • A multi-target non-radiative wireless power transfer system based on metamaterials
  • A multi-target non-radiative wireless power transfer system based on metamaterials

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Embodiment

[0028] The invention relates to a multi-target non-radiative wireless power transmission system based on metamaterials, its structure is as follows Figure 1-3 As shown, it is mainly composed of a non-resonant excitation coil 1 , a metamaterial 2 and a non-resonant receiving coil 3 . The non-resonant excitation coil 1 and the non-resonant receiving coil 3 are located on both sides of the plane where the metamaterial 2 is located. The non-resonant excitation coil 1, the metamaterial 2 and the non-resonance receiving coil 3 perform wireless power transmission through the mutual coupling of the magnetic field near field; the electromagnetic mode of the metamaterial can present a rich spatial distribution of field strength at different frequencies. Both the non-resonant exciting coil 1 and the non-resonant receiving coil 3 are non-resonant circular metal copper wire loops.

[0029] The metamaterial 2 is composed of a dielectric plate 4 and a metal resonant ring 5 loaded with a lu...

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Abstract

The invention discloses a multi-target nonradiative wireless power transmission system based on special materials, which comprises an unresonance excitation coil, a special material and an unresonance receiving coil, wherein the special material comprises a media plate and metal resonant rings which load concentrated capacities, and the unresonance excitation coil, the special material and the unresonance receiving coil are coupled to each other by utilizing magnetic fields of magnetic fields to transport wireless power. The metal resonant rings which load the concentrated capacities are coupled to form a special passband, and different frequencies of electromagnetic modes in the passband show a rich field intensity space distribution state. The multi-target nonradiative wireless power transmission system based on the special materials decides which resonant rings in the special materials to work by detecting the positions of loads, thereby not causing waste. The multi-target nonradiative wireless power transmission system based on the special materials can achieve more magnetic field distribution states of circular spots, snowflakes and concentric circles and the like by utilizing simplified plane-type special materials which are two-dimensional metal resonance ring arrays, and is beneficial for appliance of multi-target wireless power supply and the like. The special materials in the multi-target nonradiative wireless power transmission system based on the special materials have deep subwavelength characteristics, and are beneficial for miniaturization and integration of devices.

Description

technical field [0001] The invention relates to a wireless power transmission system, in particular to a metamaterial-based multi-target non-radiative wireless power transmission system. Background technique [0002] In recent years, with the development of science and technology, all kinds of electrical equipment have spread to every corner of the world, which greatly facilitates people's production and life. However, electric energy transmission mainly uses metal wires, and the disadvantages of this kind of "wired" transmission are becoming more and more obvious today when there are more and more electrical equipment. The friction, aging, and exposure of wires are prone to contact sparks, reducing the safety and reliability of electrical equipment; the complex and huge wire arrangement takes up a lot of space resources and affects the flexibility of mobile devices; in recent years, as a technology The application of wireless sensors, wireless terminal equipment, and human...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J50/10H02J50/50
Inventor 陈永强董丽娟刘艳红刘丽想邓富胜石云龙
Owner SHANGHAI COUPLING INTELLIGENT TECH CO LTD
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