A wireless charging device, system, method, mobile terminal, storage medium

Abstract

The invention belongs to the technical field of wireless charging, and discloses a wireless charging device, system, method, mobile terminal, and storage medium, which are installed inside an external metal frequency selection box to realize an internal charging system for wireless charging; the metal frequency selection box The four sides and the top surface of the body adopt a band-pass frequency selective surface; the multi-antenna subsystem of the internal charging system includes N antenna units, and N is an integer greater than 1; the antenna unit adopts a vibrator antenna and a microstrip patch antenna , waveguide slot antenna, helical antenna or dielectric resonator antenna; the N antenna units of the multi-antenna subsystem are uniformly arranged in a two-dimensional ring on the inside of the four sides of the metal frequency selection box or three-dimensionally arranged on the entire inside of the metal frequency selection box layout on the surface. The present invention can simultaneously wirelessly charge multiple mobile communication devices of different brands, different device types and different placement methods, and can communicate normally, and has the advantages of high transmission efficiency, stable transmission, and environmental protection.

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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