Solar Charging Case With Coil Alignment for Wireless Power
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Solution Overview
Problem
Existing wireless charging devices for portable electronic devices suffer from inefficiencies due to misalignment of inductive coils, requiring bulky battery packs and additional steps for charging, and lack a convenient, lightweight solution for charging in areas without electrical outlets.
Innovation Solution
An electronic device case with integrated solar cells that convert sunlight into alternating current, directly powering an inductive coil for wireless charging, eliminating intermediate batteries and ensuring precise coil alignment for efficient power transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If wireless charging devices use bulky battery packs to provide power, then charging capability is improved, but device portability and convenience deteriorate
Solution Approach 1:
The patent extracts the battery pack from the wireless charging device, eliminating the need for bulky portable power sources. Instead, the system uses wall outlets for power supply, allowing the wireless charger to be lightweight and portable without compromising charging capability.
Solution Approach 2:
The wireless charging device is designed to work with universal wall outlets rather than requiring proprietary battery packs. This multi-functionality approach allows the same device to be used anywhere with electrical access, eliminating the need for device-specific bulky battery solutions.
2Weight of moving object
If wireless charging devices are made portable without battery packs, then device portability is improved, but consistent coil alignment capability deteriorates
Solution Approach 1:
The patent introduces a movable platform that can be positioned at multiple locations around the electronic device. This spatial arrangement in another dimension allows the coil to be brought into proper alignment with the device's receiving coil, overcoming the alignment limitations of portable designs without bulky battery packs.
Solution Approach 2:
The system employs a movable, adjustable platform rather than a fixed coil structure. This dynamic design allows real-time adjustment of coil position to achieve optimal alignment with the electronic device, maintaining manufacturing precision while preserving portability.
3Loss of energy
If inductive coils are positioned for optimal alignment, then power transfer efficiency is improved, but device complexity increases
Solution Approach 1:
The system separates the coil into an independent, movable component that can be independently positioned and adjusted. This segmentation allows optimal alignment for power transfer efficiency without requiring complex integrated systems, as the coil can be simply moved into position rather than requiring complex mechanical or electronic alignment mechanisms.
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
Provides a lightweight, convenient, and efficient charging solution by integrating solar power and precise coil alignment, reducing power loss and eliminating the need for separate batteries, while maintaining the device's form factor and functionality.
Implementation Method 1
A solar cell is affixed to the back wall and faces outwardly from the case. An inverter is directly connected to the solar cell and is for converting direct current from the solar cell into alternating current upon light being received onto the solar cell.
Implementation Method 2
An inverter is directly connected to the solar cell and is for converting direct current from the solar cell into alternating current upon light being received onto the solar cell. An inductive coil is directly connected to the inverter so that the inductive coil provides an alternating magnetic field upon light being received onto the solar cell.
Data Source
AI summary
An electronic device case particularly useful for tablets and cell phones. The device case has a sidewall with an overhanging wall that properly positions the electronic device adjacent to a back wall for efficient wireless charging. A solar cell is affixed to the back wall and faces outwardly of the case. An inverter is directly connected to the solar cell and is for converging direct current from the solar cell into alternating current upon light being received onto the solar cell. An inductive coil is directly connected to the inverter so that the inductive coil provides an alternating magnetic field upon light being received onto the solar cell. No battery is required within the device case and it relies solely on power from the solar cell.