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An Asymmetric Bipolar Coil for Modular Wireless Power Transfer Systems

A wireless power transmission, asymmetric technology, applied in the direction of transformer/inductor coil/winding/connection, circuit, inductor, etc., can solve the problems of reducing system efficiency, increasing system reactive power, and difficult system control, etc. To achieve the effect of reducing the difficulty of system control and improving the transmission efficiency of the system

Active Publication Date: 2021-08-17
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the large mutual inductance between the coils on the same side in the modular wireless power transfer system, the current flowing through the transmitting coil in each module is affected, which will not only increase the reactive power of the system and reduce the efficiency of the system, but also make the It is difficult to control the system

Method used

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  • An Asymmetric Bipolar Coil for Modular Wireless Power Transfer Systems
  • An Asymmetric Bipolar Coil for Modular Wireless Power Transfer Systems
  • An Asymmetric Bipolar Coil for Modular Wireless Power Transfer Systems

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Embodiment Construction

[0018] 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.

[0019] figure 1 It is a functional structural block diagram of a single module 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 driv...

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Abstract

The invention discloses an asymmetrical bipolar coil that can be used in a modularized wireless power transmission system. The coil is wound clockwise or counterclockwise from the inside to the outside or from the outside to the inside to form a rectangle, and then in the opposite direction. The direction continues to form another rectangle from the outside to the inside or from the inside to the outside, and finally forms a double rectangular structure with two rectangles on the left and right, and the left and right sides of the coil present an asymmetric shape; the asymmetric The shape includes at least one of the following situations: 1) the shape of the left and right sides of the coil is asymmetrical; 2) the number of turns on the left and right side of the coil is asymmetrical; 3) the line spacing between the left and right sides of the coil is asymmetrical. The use of the asymmetric bipolar coil of the present invention can effectively eliminate the mutual inductance between coils on the same side, which is of great significance to improving system transmission efficiency and reducing system control difficulty, and is beneficial to the development of modular wireless power transmission systems.

Description

technical field [0001] The invention relates to wireless power transmission technology, in particular to an asymmetric bipolar coil that can be used in a modular wireless power transmission system. Background technique [0002] Compared with traditional wired power transmission technology, wireless power transmission technology is safer and more convenient, so it is widely used in various electrical equipment, such as mobile terminals, medical equipment, and electric vehicles. When the required output power is relatively large, the single wireless power transmission system has relatively large requirements on the withstand voltage and current resistance of the components, which makes it difficult to realize. However, the modular design of the wireless power transfer system can evenly distribute the output power, while the voltage and current withstand values ​​of the components in each module are reduced. At present, there are few reports on the research on the modular wire...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J50/10H02J50/70H02J7/02H01F38/14H01F27/28
CPCH02J7/025H01F27/28H01F38/14H02J50/10H02J50/70
Inventor 钟文兴方赞峰徐德鸿
Owner ZHEJIANG UNIV
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