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A device for realizing full decoupling of multiple transmitting coils in a wireless power transfer system

A technology of wireless energy transmission and transmitting coils, applied in circuit devices, battery circuit devices, transportation and packaging, etc., can solve the problems of reducing system efficiency, system control difficulty, power transmitter current influence, etc., to reduce system control difficulty, The effect of improving system transmission efficiency

Active Publication Date: 2020-12-01
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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 between multiple transmitting coils, which will affect the current in the power transmitter, not only It will only reduce the efficiency of the system, and at the same time make the control of the system more difficult

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  • A device for realizing full decoupling of multiple transmitting coils in a wireless power transfer system
  • A device for realizing full decoupling of multiple transmitting coils in a wireless power transfer system
  • A device for realizing full decoupling of multiple transmitting coils in a wireless power transfer system

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Embodiment Construction

[0027] The detailed description set forth below in conjunction with the appended drawings is intended as a description of exemplary embodiments of the invention and is not intended to represent the only embodiments in which the invention may be practiced. The term "exemplary" is used throughout this description to mean "serving as an example, instance, or illustration," and should not necessarily be considered preferred or advantageous over other exemplary embodiments. The detailed description contains specific details in order to provide a thorough understanding of the exemplary embodiments of the invention. In some instances, devices are shown in block diagram form.

[0028] figure 1 is a functional structural block diagram of a wireless power transmission system according to all exemplary embodiments of the present invention. The power transmitter 109 includes a driving power source 101 , a compensation network 102 and a transmitting coil 103 . The driving power supply 1...

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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.

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/02H02J50/12H02J50/40H02J5/00
CPCH02J5/005H02J7/025H02J50/12H02J50/40
Inventor 钟文兴方赞峰徐德鸿
Owner ZHEJIANG UNIV
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