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Coil of wireless power transmission system and winding method thereof

A technology of wireless energy transmission and winding method, which is applied in the direction of coil manufacturing, transformer/inductor coil/winding/connection, transformer/inductor parts, etc., which can solve the problems of coil AC internal resistance increase and uneven current density, etc. , to achieve the effect of reducing the AC internal resistance and reducing the skin effect

Pending Publication Date: 2021-11-26
GUANGXI POWER GRID ELECTRIC POWER RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a coil of a wireless power transmission system and its winding method, which can solve the problem in the prior art that the AC internal resistance of the coil increases due to uneven current density on each turn of the coil

Method used

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  • Coil of wireless power transmission system and winding method thereof
  • Coil of wireless power transmission system and winding method thereof
  • Coil of wireless power transmission system and winding method thereof

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Embodiment Construction

[0021] Embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings.

[0022] Embodiments of the present disclosure are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification. Apparently, the described embodiments are only some of the embodiments of the present disclosure, not all of them. The present disclosure can also be implemented or applied through different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in the present disclosure, a...

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Abstract

The invention provides a coil of a wireless power transmission system and a winding method thereof. The coil comprises a carrier and a Litz wire wound on the carrier, and is characterized in that a plurality of circles of threaded limiting grooves parallel to the periphery of a hollow circular ring are uniformly formed in the outer surface of the hollow circular ring, the threaded limiting grooves are uniformly arranged on the peripheral surface of the carrier, and the Litz wire is wound along the threaded limiting grooves to form N turns of coils. According to the coil of the wireless electric energy transmission system and the winding method of the coil, the Litz wire is adopted for spiral winding, all turns of the coil are smoothly connected, each section of the coil in the space is in the shape of a hollow circle, the Litz wire is adopted for winding the coil, the influence of the skin effect of the coil in the high-frequency working state can be reduced, and the alternating-current internal resistance of the coil under high frequency is further reduced.

Description

technical field [0001] The invention relates to the technical field of wireless power transmission, in particular to a coil of a wireless power transmission system and a winding method thereof. Background technique [0002] Traditional contact charging is easily affected by harsh environments, such as rain, mud, and loose charging sockets, which will lead to unsafe phenomena such as leakage, contact sparks, and arcs, and the charging distance is limited by the length of the wire. Wireless power transfer (WPT) can transmit electric energy without direct electrical contact, making the transmission of electric energy more convenient, flexible, and reliable, and has broad application prospects. At present, magnetic induction coupling wireless power transfer technology, as one of the most commonly used methods in WPT technology, has been widely promoted and applied in the fields of smart home, portable mobile devices, implanted medical devices, etc., and with the development of r...

Claims

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Application Information

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IPC IPC(8): H01F38/14H01F27/28H01F41/06H02J50/00H02J50/10H02J50/12
CPCH01F38/14H01F27/2823H01F41/06H02J50/005H02J50/10H02J50/12
Inventor 吴宁肖静吴晓锐龚文兰陈绍南韩帅陈卫东卢健斌阮诗雅张龙飞郭敏郭小璇孙乐平赵立夏
Owner GUANGXI POWER GRID ELECTRIC POWER RES INST
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