Deformable Device Charging Coil Annular Space Efficiency
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Solution Overview
Problem
The existing configuration of wireless charging coils in deformable electronic devices, such as smart watches, limits charging efficiency due to the coils being confined by the internal space, resulting in low charging performance.
Innovation Solution
A deformable electronic device design featuring a body with detachable portions that form an annular space, allowing the charging coil to be positioned within this space, thereby adjusting its size and improving charging efficiency, and incorporating a shielding layer to mitigate electromagnetic interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the wireless charging coil is stacked within the internal space of the deformable electronic device, then the device structure is compact, but the charging efficiency is low
Solution Approach 1:
The charging coil is extended from the traditional stacked configuration into the annular space formed by the first and second portions of the device body. This spatial reconfiguration allows the coil to utilize the annular region around the battery rather than being confined to the internal stacked space, effectively increasing the coil's area and improving charging efficiency through dimensional expansion.
2Productivity
If the charging coil size is increased to improve charging efficiency, then the charging performance improves, but the device internal space becomes more constrained
Solution Approach 1:
The device body is segmented into distinct portions: a first portion, a second portion, and a battery, where the first and second portions are configured to form an annular space. This segmentation creates a dedicated spatial zone for the charging coil that does not interfere with the battery or other internal components, allowing the coil to be enlarged without increasing overall device complexity.
3Productivity
If the charging coil is positioned within the annular space, then charging efficiency is improved, but electromagnetic interference increases
Solution Approach 1:
The patent acknowledges the electromagnetic interference generated by the charging coil in the annular space and converts this harmful effect into a beneficial shielding structure. By positioning shielding layers adjacent to the coil within the annular region, the interference is contained and redirected, protecting surrounding components while maintaining the coil's enlarged configuration and charging efficiency.
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 design enhances charging efficiency by allowing the charging coil to occupy space not limited by the device's internal dimensions and reduces electromagnetic interference, enabling thinner device profiles and improved power transfer.
Implementation Method 1
a charging coil disposed within at least the first portion and the second portion that charges the battery
Implementation Method 2
incorporating a shielding layer to mitigate electromagnetic interference
Data Source
AI summary
An embodiment provides an electronic device comprising: a body; a battery disposed within the body; a first portion extending from the body; a second portion extending from the body; and a charging coil disposed within at least the first portion and the second portion that charges the battery. Other aspects are described and claimed.