Stepped Wireless Ring Charger for Size-Agnostic Inductive Charging
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Solution Overview
Problem
Existing inductive smart ring chargers require multiple models for different ring sizes, increasing costs and complexity, while alternative solutions like pin charging compromise aesthetics and robustness, and existing wireless charging standards are costly and inefficient for small devices.
Innovation Solution
A wireless charger design with a mounting part, transmit coil, charging platform with adjustable steps, and power circuit that compensates for varying ring sizes by adjusting electromagnetic waves based on coil separation, or uses distance sensors to adjust power accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple charger models are used for different ring sizes, then charging compatibility is improved, but device complexity and cost increase
Solution Approach 1:
The patent implements a universal charging platform with a single transmit coil that can charge wearable devices of different sizes (small, medium, large rings) through adjustable steps. The platform uses one standardized charger model that performs multiple functions by accommodating different ring sizes via the step adjustment mechanism, eliminating the need for multiple specialized charger models.
Solution Approach 2:
The charging platform is divided into multiple adjustable steps that can be positioned at different heights. This segmentation allows the platform to adapt to different ring sizes by selecting appropriate step levels, enabling a single charger to handle multiple device sizes without requiring multiple complete charger units.
2Adaptability or versatility
If pin charging is used, then a one-size-fits-all solution is achieved, but aesthetic value and structural robustness decrease
Solution Approach 1:
The patent replaces the mechanical pin-based charging system with an inductive wireless charging system using electromagnetic fields. This substitution eliminates the need for physical contact pins, thereby preserving the aesthetic value and structural integrity of the wearable device while achieving universal charging capability through the adjustable platform.
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 a cost-effective, size-agnostic charger that maintains consistent charging efficiency across different ring sizes without additional components, simplifying production and user experience.
Implementation Method 1
a power circuit, coupled to the transmit coil to enable the transmit coil to emit electromagnetic waves to the receive coil to charge the wearable device
Data Source
AI summary
A wireless charger includes a mounting part; a transmit coil, disposed in the mounting part; a charging platform, adjacent to the mounting part, for placing a wearable device with a receive coil; a plurality of steps created on a top surface of the charging platform such that the plurality of steps are at different heights with respect to a horizontal plane; and a power circuit, coupled to the transmit coil to enable the transmit coil to emit electromagnetic waves to the receive coil to charge the wearable device.