Coupling coil of wireless charging system and preparation method of coupling coil

A technology for coupling coils and wireless charging, applied in coil manufacturing, circuits, inductors, etc., can solve the problems of increased labor costs and time costs, affecting the system development process, and being separated from actual production, achieving strong versatility and design threshold. Low, design results specific effects

Inactive Publication Date: 2016-11-16
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

However, this design method cannot realize the optimal selection of parameters, and the coil wound according to experience may not be able to match the working state of the system, resulting in low power transmission efficiency, and may require multiple adjustments, resulting in labor costs and time costs for coil winding increase, affecting the system development process
A few foreign literatures have studied the

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  • Coupling coil of wireless charging system and preparation method of coupling coil
  • Coupling coil of wireless charging system and preparation method of coupling coil
  • Coupling coil of wireless charging system and preparation method of coupling coil

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Embodiment Construction

[0052]The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0053] The invention provides a method for preparing a coupling coil of a wireless charging system, comprising: a step of determining the coupling coefficient of the coil, a step of determining the inductance of the coil, a step of determining the model of the Litz wire, a step of determining the number of turns of the coil, and an optimal design scheme Determine steps. The coupling coil includes a transmitting end and a receiving end, the transmitting end is the transmitting coil, and the receiving end ...

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Abstract

The invention provides a coupling coil of a wireless charging system and a preparation method of the coupling coil. The method comprises the steps of (S1) determining a coupling coefficient of the coupling coil; (2) determining an inductance value of the coupling coil and working current of the coupling coil according to the coupling coefficient; (S3) determining the Litz wire specification according to the working current of the coupling coil; and (S4) determining the number of turns of the coupling coil according to the inductance value of the coupling coil. The complicated work of designing the coupling coil of the wireless charging system is decomposed into a few of steps; the overall design process is clear and distinct; the operability is high; through the scheme designed by the invention, the technical indexes can be met; and relatively high power transmission efficiency can be achieved through selecting an optimal design scheme.

Description

technical field [0001] The present invention relates to wireless charging technology, in particular to a wireless charging system coupling coil and a preparation method thereof. Background technique [0002] Due to its characteristics of safety, convenience and environmental protection, wireless power transmission technology has been paid more and more attention in people's life. This technology involves power electronic circuit, coil electromagnetic design, automatic control, communication protocol and many other aspects. At present, the research on wireless charging mainly focuses on the wireless charging circuit topology, control strategy and coil structure, and there are few studies on the design method of the coupling coil of the wireless charging system. However, as the most important component in the wireless charging system, the coupling coil is not only closely related to the power and efficiency of electric energy transmission, but also determines the stability an...

Claims

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Application Information

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IPC IPC(8): H02J50/10H01F38/14H01F41/04H02J7/00
CPCH01F38/14H01F41/04H02J7/025
Inventor 赵维娜姚辰唐厚君蔡位焜袁国栋
Owner SHANGHAI JIAO TONG UNIV
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