Wireless charging device, system and method, mobile terminal and storage medium

Abstract

The invention belongs to the technical field of wireless charging, and discloses a wireless charging device, system and method, a mobile terminal and a storage medium. The wireless charging device comprises an internal charging system which is installed in an external metal frequency selection box body and used for achieving wireless charging. The four side faces and the top face of the metal frequency selection box body are all band-pass type frequency selection surfaces. A multi-antenna subsystem of the internal charging system comprises N antenna units, wherein N is an integer greater than1. The antenna unit adopts an oscillator antenna, a microstrip patch antenna, a waveguide slot antenna, a spiral antenna or a dielectric resonator antenna; and the N antenna units of the multi-antennasubsystem are uniformly arranged on the inner sides of the four side surfaces of the metal frequency selection box body in a two-dimensional annular manner or are arranged on the three-dimensional curved surface of the whole inner side of the metal frequency selection box body. According to the invention, simultaneous wireless charging of a plurality of mobile communication devices with differentbrands, different device types and different placement modes can be realized, normal communication can be realized, and the device has the advantages of high transmission efficiency, stable transmission, environmental protection and the like.

Description

technical field [0001] The invention belongs to the technical field of wireless charging, and in particular relates to a wireless charging device, system, method, mobile terminal, and storage medium. Background technique [0002] At present, the wireless energy transmission device mainly refers to the wireless energy transmission between the transmitting end and the receiving end by using electromagnetic induction, magnetic coupling resonance, microwave, laser and other non-contact methods without relying on traditional power supply lines. Nowadays, with the development of new media, information technology, Internet and interactive resources, more and more types of mobile devices are being developed, and their functions are also showing a trend of diversification. However, due to the limitation of technical level and design space reserved for devices, A mobile device (mobile device: also known as a mobile device, mobile device, handheld device, etc., is a pocket-sized comput...

AI Technical Summary

Problems solved by technology

In 2017, Master Yang Yuan of the University of Electronic Science and Technology of China applied the adaptive focusing technology based on the principle of reciprocity to the field of microwave wireless energy transmission, proving the feasibility of adaptive focusing energy transmission, but it faces open space, so the transmission efficiency remains the same. lower

[0004] Most of the existing microwave radiative energy transfer methods are concerned with focusing at a certain point in free space. There is little electromagnetic transmission in complex environments. Most of the research focuses on focal length, focal spot size, focusing antenna or antenna array. Design, through the optimization of parameters to maximize the efficiency of energy transmission, even if it is used in the field of medical equipment, it does not consider the impact of complex environments on energy transmission, and the wireless energy transmission in confined spaces is very limited

In 2019, master Ye Xuyu from the University of Electronic Science and Technology of China applied adaptive focusing technology to wireless energy transmission in a closed cabin. However, due to the closed nature of the cabin, communication between inside and outside the cabin cannot be performed while the energy is being transmitted.

[0005] Through the above analysis, the problems and defects of the existing technology are: it is impossible to realize wireless energy transmission in a closed metal box or cabin environment, and at the same time ensure the external wireless communication of the energy-receiving equipment

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