Multi-transmitting and multi-receiving magnetic resonance wireless charging system for medium-power electronic equipment

Abstract

The invention discloses a multi-transmitting and multi-receiving magnetic resonance wireless charging system for medium-power electronic equipment. Through magnetic resonance coupling between an arraystructure composed of a plurality of transmitting antennas and an array structure composed of a plurality of receiving antennas in a magnetic resonance coupling wireless electric energy transmissionsystem, electromagnetic energy is transmitted to a receiving end from a transmitting end in a wireless mode, then power synthesis is carried out, and the medium-power electronic equipment is charged.The magnetic field multi-path transmitting and multi-path receiving scheme adopted by the invention can ensure that each path of load power is equally divided under the condition of higher output power, and the power bearing pressure of a single path is reduced, so that the design scheme and the lightness and thinness of a device can be realized, and the built-in requirements of medium and small-power small household appliances and consumer electronics on a wireless charging scheme are met. According to the magnetic field multi-transmitting and multi-receiving scheme adopted by the invention,the magnetic field coupling balance degree between the transmitting and receiving ends is effectively improved, and the horizontal degree of freedom is increased, so that the receiving end can freelymove in a transmitting area.

Description

technical field [0001] The invention belongs to the technical field of wireless energy transmission, and in particular relates to the design of a multi-transmission and multi-reception magnetic resonance wireless charging system for medium-power electronic equipment. Background technique [0002] With the continuous development of electronic information technology and automation control technology, various home appliances, consumer electronics, mobile communication equipment, etc. have been widely popularized. However, traditional household appliances rely Electronic devices with built-in batteries also need a wired connection between the charging cable and the power outlet for charging, so we can see wires that provide power supply for these electronic devices everywhere. These wires not only occupy our activity space, limit the convenience of equipment use, but also create hidden dangers for safe use of electricity. Therefore, with the growing demand for portable devices ...

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Problems solved by technology

[0008] The purpose of the present invention is to solve the technical problems of large receiving end, large power consumption, low efficiency, poor stability, serious heat generation and other technical problems in the existing magnetic resonance wireless charging design scheme that can be used for wireless charging of medium-power small electronic equipment, and meet the needs of small household appliances. And the built-in requirements of consumer electronics products for wireless charging solutions and the humanized requirements for the use of electronic products in the market, a multi-transmission and multi-reception magnetic resonance wireless charging system for medium-power electronic equipment is proposed

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