Spiral Slot Coil Module for AGV Wireless Power Alignment
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Solution Overview
Problem
Conventional induction type power supply systems experience significant efficiency drops and electromagnetic interference due to coil alignment deviations, particularly in wireless charging applications for automatic guided vehicles, where energy transmission efficiency varies greatly with small position changes and misalignment.
Innovation Solution
A novel coil structure featuring a spiral slot in the upper lid with staggered winding patterns for both the supplying-end and receiving-end coils, allowing for different wire dispositions that reduce energy transmission efficiency variations and electromagnetic interference by controlling wire density and alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If conventional winding methods with glued flat spiral coils are used, then energy transmission efficiency becomes extremely high when coils are exactly aligned, but energy transmission efficiency falls rapidly when small position deviation appears
Solution Approach 1:
The coil is divided into multiple independent wire segments that are disposed in a spiral groove, allowing each segment to independently contribute to the magnetic field and energy transmission, reducing sensitivity to alignment deviations
Solution Approach 2:
The spiral groove structure creates localized wire dispositions with varying densities and orientations throughout the coil, optimizing energy distribution across different regions to maintain efficiency under misalignment conditions
2Power
If conventional winding methods are used, then high energy transmission is achieved at perfect alignment, but electromagnetic interference increases when coil alignment deviates
Solution Approach 1:
Different regions of the coil have locally optimized wire dispositions in the spiral groove, creating a more uniform electromagnetic field distribution that reduces interference while maintaining power transmission
Solution Approach 2:
The wire disposition in the spiral groove allows for dynamic optimization of the magnetic field pattern, adapting to maintain efficient energy transfer and minimize interference across varying alignment conditions
3Productivity
If coils are exactly aligned for maximum energy transmission, then power supply efficiency is optimized, but the system becomes highly sensitive to position deviations
Solution Approach 1:
The segmented wire structure in the spiral groove allows each segment to contribute to the overall magnetic field, providing redundancy that maintains efficiency even when alignment deviates from the optimal position
Solution Approach 2:
The spiral groove structure enables variation in wire disposition parameters such as density, orientation, and spacing, creating a more robust coil configuration that maintains performance across a range of alignment conditions
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
The solution maintains consistent energy transmission efficiency across a range of coil deviations and reduces electromagnetic interference by optimizing wire placement and density, ensuring efficient power delivery even with slight misalignments, enhancing overall power supply performance.
Implementation Method 1
induction type power supply system
Data Source
AI summary
A coil module for an induction type power supply system includes a supporting frame, an upper lid and a first wire. The upper lid, disposed on the supporting frame, includes a spiral slot. The first wire is used for being inserted in the spiral slot to form a coil.