Double-Sided Wireless Charger for Simultaneous Two-Device Charging
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Solution Overview
Problem
Existing wireless chargers typically charge only one device at a time, leading to clutter and inefficiency, especially for individuals needing to charge multiple portable electronic devices simultaneously, such as smartphones and smartwatches, and there is a need for a more compact solution that can accommodate multiple devices in a smaller space.
Innovation Solution
A double-sided wireless charger with a circular or oval form, featuring a top and bottom face that radiate magnetic fields to interact with coils in separate devices, allowing for simultaneous charging of two portable electronic devices in a compact arrangement, with optional shielding and separate or shared circuitry for efficient power transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a wireless charger is designed to charge only one device at a time, then the charging function is simple and reliable, but multiple devices require multiple chargers leading to clutter and inefficiency
Solution Approach 1:
The patent applies dimensionality change by transitioning from a single-sided charging surface to a double-sided charging structure. The charger includes a top face and a bottom face, each capable of wirelessly charging a device simultaneously. This spatial transformation allows one charger to serve the function of two chargers, improving productivity while maintaining relatively simple device structure.
2Productivity
If multiple wireless chargers are used to charge multiple devices simultaneously, then each device can be charged independently, but the space required increases and clutter is created
Solution Approach 1:
The patent merges the functionality of two separate wireless chargers into a single integrated device. By combining two charging surfaces (top and bottom faces) into one charger unit, the invention enables simultaneous charging of multiple devices while reducing the total number of chargers needed, thereby minimizing clutter and space requirements.
3Ease of operation
If devices are placed on a common flat surface for charging, then the setup is simple, but a large surface area is required and devices may displace each other
Solution Approach 1:
The patent resolves the space issue by utilizing vertical stacking in the third dimension. Instead of placing devices side-by-side on a large horizontal surface, the double-sided design allows devices to be stacked vertically with the charger in between, reducing the horizontal footprint while maintaining ease of operation.
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
Enables the simultaneous charging of two devices, such as smartphones or a smartphone and smartwatch, in a compact format, reducing space requirements and preventing device displacement due to high friction surfaces, while being portable and adaptable to various power sources.
Implementation Method 1
a coil is provided within an interior of the device which is configured to scavenge power from an appropriate magnetic field exterior to the device. A wireless charger is provided which is also configured with such an appropriate electrically conductive coil, typically also within a housing of the charger which is transparent to magnetic fields. When the portable electronic device is brought close to the charger, inductive coupling between the two coils causes electric power to be transferred from the charger to the device
Implementation Method 2
When the portable electronic device is brought close to the charger, inductive coupling between the two coils causes electric power to be transferred from the charger to the device
Data Source
AI summary
A wireless charger has two opposing surfaces including a top face and a bottom face. At least one coil within an interior of the wireless charger is couple able to a source of electric power and is configured to wirelessly charge a first battery powered wireless-charging-compatible electronic device adjacent to the top face and a second battery powered wireless-charging-compatible electronic device adjacent to the bottom face, without a wired connection between the battery powered electronic devices and the wireless charger. The wireless charger can in an alternative embodiment include two coils with an interior thereof, one for charging adjacent to the top face and one for charging adjacent to the bottom face. A cord delivers power to the coils, through appropriate intervening electronics.