Non-contact Communication Coil with Opposing Induction Windings
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing non-contact communication systems require separate cancellation coils to improve data reception reliability, which adds complexity and may not effectively suppress induction voltages from power transmission coils, affecting data communication performance.
Innovation Solution
A non-contact communication coil configuration that includes a power transmission coil, a power receiving coil, and a resonance coil, where the coils are arranged to generate induction voltages in opposing directions, suppressing the effects of the power transmission coil and enhancing data communication reliability by sharing or joining these coils.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate cancellation coil is added to suppress induction voltages, then data reception reliability is improved, but device complexity increases
Solution Approach 1:
The patent combines the communication coil and cancellation coil into a single integrated structure. The communication coil has two windings: a first winding for data communication and a second winding for cancellation. These windings are wound around the same magnetic core, merging the functions of data reception and noise cancellation into one component, thereby improving reliability without increasing device complexity
Solution Approach 2:
The integrated coil structure serves multiple functions simultaneously. The first winding receives data signals while the second winding generates cancellation magnetic fields. Both functions are achieved through a single coil assembly that shares the same magnetic core, making the component multi-functional and eliminating the need for separate cancellation coils
2Reliability
If the communication area is widened by increasing coil size, then data communication performance is improved, but the device occupies more space
Solution Approach 1:
The patent enhances the communication area not by increasing the physical footprint in the plane, but by utilizing the third dimension - the magnetic core provides a vertical path for magnetic flux. The first and second windings are wound around the magnetic core in series, creating a three-dimensional magnetic field structure that expands the effective communication area without proportionally increasing the device's planar area
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration improves data communication performance by suppressing induction voltages from the power transmission coil, widening the communication area, and enhancing reliability without the need for separate cancellation coils.
Implementation Method 1
the non-contact communication coil is configured to generate induction voltages in mutually opposing directions in the first receiver and the second receiver when current passes through at least one of the power transmission coil and the power receiving coil
Implementation Method 2
a power transmission coil, a power receiving coil, and a resonance coil
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
A non-contact communication coil (14, 33, 41) configured to a non-contact power feeding device (10,30) comprises a power transmission coil (L1, L4), a power receiving coil (L3, L6), and a resonance coil (L2, L5), and the non-contact communication coil (14, 33, 41) includes a first receiver (141) and a second receiver (142) connected in series with the first receiver (141). The non-contact communication coil (14, 33, 41) is configured to generate induction voltages in mutually opposing directions in the first receiver and the second receiver when current passes through at least one of the power transmission coil and the power receiving coil.