Device for fully decoupling multiple transmitting coils in wireless electric energy transmission system

A technology of wireless energy transmission and transmitting coils, applied in circuit devices, battery circuit devices, transportation and packaging, etc., can solve problems such as reducing system efficiency, system control difficulty, power transmitter current influence, etc., to improve system transmission efficiency, The effect of reducing the difficulty of system control
CN109980756AActive Publication Date: 2019-07-05ZHEJIANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG UNIV
Publication Date
2019-07-05

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Abstract

The invention discloses a device for fully decoupling multiple transmitting coils in a wireless electric energy transmission system. The device wirelessly transmits the electric energy to one or morereceivers by a plurality of power transmitters. Each power transmitter is provided with a transmitting coil. The device may comprise six transmitting coils, six compensating capacitors, and seven decoupling elements, wherein the transmitting coils are arranged in a double-row array and the distances between the centers of the any two adjacent transmitting coils are the same. Or the device may comprise seven circular transmitting coils, seven compensating capacitors, six decoupling elements, wherein the six transmitting coils surround the other one transmitting coil, and the distances between the centers of the any two adjacent transmitting coils are the same. The mutual inductance among all transmitting coils can be eliminated by configuration. Further, the compensating capacitors are configured to satisfy the resonance. The device can fully decouple the multiple transmitting coils by using the decoupling components, has great significance for improving the system transmission efficiency and reducing the system control difficulty.
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Description

technical field

[0001] The invention relates to wireless power transmission technology, in particular to a device for realizing full decoupling of multiple transmitting coils in a wireless power transmission system. Background technique

[0002] Due to its safe and convenient features, wireless power transmission technology is widely used in various electrical equipment, such as mobile terminals, medical equipment, and electric vehicles. Because the wireless power transfer system with multiple transmitting coils can not only improve the transmission distance of the wireless power charging system, but also improve the offset capability of the wireless power transfer system, so the system has become a research hotspot in the direction of wireless power transmission in recent years. However, in a wireless power transfer system with multiple transmitting coils, when multiple transmitting coils are arranged in double rows or in a circular shape, there is a large mutual inductance...

Claims

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