Wireless power transmission plane PCB coil based on magnetic coupling resonance and detection method

Abstract

The invention belongs to the technical field of wireless power transmission and discloses a wireless power transmission plane PCB coil based on magnetic coupling resonance and a detection method. A 3Dcoil model is set up through utilization of Maxwell software. The 3D coil model is simulated to obtain self-inductance, mutual-inductance and coupling coefficients of a coil. An external circuit is set up through utilization of an SIMPOLERE model. The external circuit is coupled with the coil model. Transmission characteristics are analyzed under different frequencies. The PCB coil is equipped with a first coil and a second coil. Inner joints and outer joints of two ends of the first coil and the second coil are connected through utilization of a copper wire. Materials of the first coil and the second coil are copper. Vertical distance between the first coil and the second coil is 10cm. According to the PCB coil and the method, the coupling coefficient of the coil reaches more than 0.5; and when the coil is coupled with the external circuits of different frequencies, the frequencies of the external currents are consistent with a resonance frequency of the circuit, and transmission efficiency is the maximum.

Description

technical field [0001] The invention belongs to the technical field of wireless power transmission, and in particular relates to a radio transmission planar PCB coil based on magnetic coupling resonance and a detection method. Background technique [0002] At present, the existing technologies commonly used in the industry are as follows: the history of human development has experienced three industrial revolutions, which are the age of steam, the age of electricity, and the age of science and technology. Wireless power transmission, also known as non-contact power transmission, refers to the technology in which electric energy supplies power to electrical equipment through a non-contact method. This technology can get rid of the shackles of metal wires, realize the power supply of electronic equipment without space constraints, and has the advantages of no need for plug-in links, no exposed wires, and no electric shock and leakage. [0003] Electricity has been widely used...

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Problems solved by technology

[0012] Implantable devices are based on non-rechargeable batteries, which cannot function when the battery is dead, so such implantable devices do not have a long lifespan, and the patient must undergo surgery to replace the battery before it is depleted battery, but frequent surgery to replace the battery not only brings great pain to the patient, but also endangers life if the battery is not replaced in time

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