Integrated coil and magnetic near field coupling type wireless information energy transmission system

Abstract

The invention provides an integrated coil which comprises an energy transmission coil used for energy transmission and an information transmission coil arranged in the energy transmission coil and used for information transmission, the information transmission coil is composed of two DDP coils which are vertically arranged in a stacked mode, and the two DDP coils are mutually decoupled through mutual perpendicular arrangement. The two D coils in each DDP coil generate a polarized magnetic field through reverse excitation so as to be decoupled from the energy transmission coil on the outer side. The invention also provides a magnetic near field coupling type wireless information and energy transmission system, which comprises a transmitting end integrated coil, a receiving end integrated coil, a transmitting end information transmission coil, a receiving end information transmission coil, a magnetic near field coupling type wireless information and energy transmission coil and a magnetic near field coupling type wireless information and energy transmission coil, wherein the transmitting end integrated coil comprises a transmitting end energy transmission coil and a transmitting end information transmission coil arranged in the transmitting end energy transmission coil; comprising a receiving end energy transmission coil and a receiving end information transmission coil arranged in the receiving end energy transmission coil, and a transmitting end integrated coil and a receiving end integrated coil are equal in size and symmetrical in structure.

Description

technical field [0001] The invention belongs to the technical field of wireless power transmission, and in particular relates to an integrated coil and a magnetic near-field coupled wireless signal energy transmission system. Background technique [0002] Wireless charging technology has a wide range of application prospects in electric vehicles, aerospace, biomedical and other fields due to the advantages of non-contact sparks, small footprint, and strong environmental adaptability. In order to realize the control of the wireless charging process, the transmitter and the receiver need to carry out stable and efficient information exchange. [0003] The current wireless signal energy parallel transmission system has the following shortcomings: [0004] 1. Traditional communication methods (Bluetooth, WIFI, ZigBee) require a long "handshake" time, and additional modules need to be added to increase the complexity of the system. [0005] 2. The parallel transmission of energ...

AI Technical Summary

Problems solved by technology

But when the primary side and the secondary side are offset, the working efficiency of the capacitive element drops sharply; and due to the eddy current action of the aluminum plate under the high-frequency magnetic field, the power of energy transmission is not high

[0006] 3. On the basis of energy transmission, add a coding switch, and use the principle of frequency division multiplexing to transmit energy and signals. This method cannot realize simultaneous transmission of energy and signals

The capacitance and inductance accuracy of the compensation circuit has a great influence on the performance of the system and is not practical

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