Nanocrystal Ribbon Magnetic Sheet Layout for Mobile Charging
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
There is a lack of a suitable sheet-shaped magnetic member for non-contact charging apparatuses capable of charging traveling mobile bodies, particularly in applications such as automobiles, where efficient power reception during movement is required.
Innovation Solution
A sheet-shaped magnetic member is designed with nano-crystal alloy ribbons arranged in a specific orientation and stacked in a particular configuration to enhance power reception efficiency, featuring a rectangular shape with longitudinal and transverse directions aligned with the travel direction and incorporating adhesive layers and resin sheets for structural integrity and handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If nano-crystal alloy ribbons are arranged with long sides in the longitudinal direction in the central portion and in the transverse direction in the outer portions, then power reception efficiency is improved by maximizing facing area with primary coils and aligning magnetic paths, but the structural complexity and manufacturing difficulty increase due to the mixed orientation arrangement
Solution Approach 1:
The patent applies local quality by differentiating the orientation of nano-crystal alloy ribbons in different regions of the sheet-shaped magnetic member. The central portion has ribbons with long sides in the longitudinal direction to maximize facing area with primary coils, while outer portions have ribbons with long sides in the transverse direction to align magnetic paths. This regional differentiation optimizes power reception efficiency for each specific location's functional requirements.
2Reliability
If multiple nano-crystal alloy ribbons are stacked in the thickness direction with different orientations, then magnetic properties are enhanced through improved power reception efficiency, but the manufacturing precision requirements increase due to the need for precise orientation control
Solution Approach 1:
The patent segments the sheet-shaped magnetic member into distinct regions (central portion and outer portions) with different ribbon orientations. This segmentation allows for standardized manufacturing of each region type, reducing overall manufacturing complexity despite the varied orientations. Each segment can be produced with controlled orientation requirements, making the precision management more systematic.
Solution Approach 2:
By assigning different orientations to different regions, the patent enables localized optimization of magnetic properties. The central portion's longitudinal orientation maximizes facing area for power reception, while the outer portions' transverse orientation aligns magnetic paths. This local quality approach enhances overall magnetic performance while allowing region-specific manufacturing control.
3Adaptability or versatility
If the sheet-shaped magnetic member uses a mixed orientation arrangement of nano-crystal alloy ribbons, then adaptability to traveling mobile body charging applications is improved, but the ease of manufacture decreases due to complex assembly requirements
Solution Approach 1:
The mixed orientation arrangement is specifically designed for adaptability to traveling mobile body charging applications. The central portion's longitudinal orientation maximizes the facing area with moving primary coils, while the outer portions' transverse orientation ensures proper magnetic path alignment during movement. This local differentiation provides the versatility needed for dynamic charging scenarios.
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 power reception efficiency by maximizing the facing area with primary coils and aligning magnetic paths, enhancing magnetic properties and productivity while ensuring ease of handling and assembly.
Implementation Method 1
a plurality of nano-crystal alloy ribbons each of which is formed in a band shape having a short side and a long side, the plurality of nano-crystal alloy ribbons being arranged in an in-plane direction and stacked in a thickness direction
Implementation Method 2
a sheet-shaped magnetic member including a plurality of nano-crystal alloy ribbons
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A sheet-shaped magnetic member includes a plurality of nano-crystal alloy ribbons each of which is formed in a band shape having a short side and a long side, the plurality of nano-crystal alloy ribbons being arranged in an in-plane direction and stacked in a thickness direction. The sheet-shaped magnetic member has a rectangular shape having a longitudinal direction and a transverse direction when viewed from the thickness direction. In a central portion of the sheet-shaped magnetic member in the transverse direction, a direction of the long side is the longitudinal direction. In both outer portions of the sheet-shaped magnetic member located on both outer sides with respect to the central portion in the transverse direction, the direction of the long side is the transverse direction.