Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Wireless charging system coupling coil and preparation method thereof

A coupling coil and wireless charging technology, which is applied in coil manufacturing, circuits, inductors, etc., can solve the problems of increased labor cost and time cost, no Litz wire involved, and affecting the system development process, etc., achieving strong versatility and high efficiency. Efficiency or efficiency and weight trade-off, the effect of low design threshold

Inactive Publication Date: 2019-03-22
SHANGHAI JIAOTONG UNIV
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 parameter optimization design process of the wireless charging system, but the design method only involves the selection of the inductance, and does not involve the determination method of the Litz wire structure and the number of turns, nor does it include the intuitive design requirements such as coil size and distance In the design process, so the design process is incomplete and divorced from actual production

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Wireless charging system coupling coil and preparation method thereof
  • Wireless charging system coupling coil and preparation method thereof
  • Wireless charging system coupling coil and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

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 ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
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 JIAOTONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products