Wireless Power Receiver Magnetic Substrate Coil Thickness Reduction
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Solution Overview
Problem
Current wireless power receivers are thick and have complex manufacturing processes, limiting their application in portable devices and long-distance power transmission efficiency.
Innovation Solution
A wireless power receiver design featuring a magnetic substrate with a coil unit directly disposed on its surface, reducing thickness and simplifying manufacturing through laminating and etching processes, and optionally using pattern grooves in the substrate for further thickness reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If conventional wireless power receiver structure is used, then power reception function is achieved, but thickness is excessive and manufacturing process is complex
Solution Approach 1:
The coil unit is directly disposed on the magnetic substrate without separate insulation layers or complex mounting structures, merging the coil support function directly into the substrate integration. This reduces the number of discrete components and simplifies assembly steps while maintaining the wireless power reception function.
Solution Approach 2:
Pattern grooves are formed on the magnetic substrate to create three-dimensional structural features that reduce overall thickness. The grooves allow the coil unit to be positioned in recessed areas, effectively utilizing vertical space to minimize the receiver's profile without compromising electrical performance.
2Length of moving object
If thickness is reduced by simplifying structure, then portability is improved, but manufacturing precision requirements increase
Solution Approach 1:
Pattern grooves are pre-formed on the magnetic substrate before the coil unit is disposed. These grooves serve as predetermined positioning features that guide accurate placement of the coil unit, ensuring precise alignment without requiring complex real-time adjustment mechanisms during assembly.
Solution Approach 2:
The magnetic substrate itself serves as both the structural support and the positioning reference for the coil unit. By integrating the positioning function into the substrate's surface geometry rather than requiring separate precision fixtures or alignment mechanisms, the design achieves high positioning accuracy while maintaining thin profile.
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 design achieves a significant reduction in overall thickness, enhances power transmission efficiency, and simplifies the manufacturing process, making it suitable for portable devices while minimizing magnetic field leakage and human exposure.
Implementation Method 1
The coil unit 200 may receive power from a transmission side in a wireless manner
Implementation Method 2
the long-distance transmission using the resonance and the short-wavelength radio frequency has been suggested as the wireless energy transfer scheme
Implementation Method 3
The magnetic substrate 100 may change a direction of the magnetic field transferred from the transmission side to the coil unit 200
Data Source
Figure 1
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Figure 3~4
AI summary
A wireless power receiver according to one embodiment includes a magnetic substrate and a coil configured to wirelessly receive power, wherein the coil is formed as a conductive pattern on the magnetic substrate.