Concave Metal Plate Layout for Magnetic Mounts and Wireless Charging
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Solution Overview
Problem
Magnetic mounts for electronic devices often interfere with wireless charging by blocking the electromagnetic field, preventing the device from charging properly.
Innovation Solution
A metal plate with a rounded concave edge is designed to allow magnetic attachment to a support without overlapping with the receiver coil, ensuring that wireless charging is not impeded, and can be attached to the case or device in various orientations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a metal plate is used for magnetic attachment, then magnetic retention is improved, but wireless charging is impeded because the metal plate blocks the electromagnetic field
Solution Approach 1:
The metal plate is segmented into a first metal plate and a second metal plate positioned at different locations on the case. This segmentation allows the electromagnetic field to pass through gaps between the plates, reducing interference with wireless charging while maintaining magnetic attachment capability through the distributed metal surfaces.
Solution Approach 2:
Different regions of the case are assigned different metal plate configurations. The first metal plate is positioned in a first location and the second metal plate in a second location, creating local variations in metal density and distribution. This local quality approach allows optimal balance between magnetic retention in attachment zones and electromagnetic field transmission in charging zones.
2Adaptability or versatility
If a metal plate is attached to the case, then magnetic mounting capability is improved, but the device cannot be wirelessly charged without removing the plate
Solution Approach 1:
The metal plate is divided into multiple segments (first and second metal plates) positioned at different locations. This segmentation enables the case to simultaneously support magnetic mounting functionality and wireless charging operation without requiring removal of the metal plate, as the gaps between segments allow electromagnetic field penetration.
Solution Approach 2:
The system dynamically adapts to different operational modes by utilizing the spatial distribution of multiple metal plates. During wireless charging, the electromagnetic field passes through gaps between plates; during magnetic mounting, the distributed metal surfaces collectively provide sufficient attachment force. This dynamic adaptability eliminates the need to remove the metal plate for charging.
3Adaptability or versatility
If a metal plate is used for magnetic attachment, then the case can be mounted on magnetic supports, but the metal plate may disrupt wireless charging at certain orientations and positions
Solution Approach 1:
The metal plate is segmented into multiple plates positioned at different locations on the case. This segmentation reduces electromagnetic interference with wireless charging across various orientations and positions, as the gaps between segments allow field penetration from multiple angles, improving charging reliability while maintaining magnetic mounting flexibility.
Solution Approach 2:
The first and second metal plates are positioned asymmetrically at different locations on the case rather than using a single symmetric plate. This asymmetric distribution optimizes both magnetic attachment performance and electromagnetic field transmission characteristics across different orientations, ensuring consistent wireless charging reliability regardless of case orientation on the charging surface.
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 metal plate enables magnetic retention of the case or device while allowing for effective wireless charging, eliminating the need to remove the plate for charging and ensuring compatibility with different orientations and positions.
Implementation Method 1
The metal plate is constructed to enable magnetic retention or attachment of the case to a support having a magnet
Implementation Method 2
Wireless charging uses an electromagnetic field to transfer energy between two objects through electromagnetic induction
Data Source
AI summary
A case for an electronic device wherein the electronic device has a receiver coil for wireless charging and the receiver coil is formed in between an inner circle and an outer circle, includes: a hard protective frame constructed to receive the electronic device therein wherein the hard protective frame faces the electronic device; and a metal plate constructed to be received in the recess. The metal plate is constructed to enable magnetic retention or attachment of the case to a support having a magnet. The metal plate has a rounded concave edge, and the metal plate does not overlap with the inner circle. Preferably, the rounded concave edge, the inner circle, and the outer circle are substantially symmetrical with respect to a same line.