Annular Wearable Coil Layout for In-Use Wireless Charging
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Solution Overview
Problem
Conventional wearable devices require wired charging, which is inconvenient as users must carry a charger and may experience battery depletion issues if the charger is not available.
Innovation Solution
A wearable device with an annular-shaped wearing member and a first coil that can be charged wirelessly by aligning with an electronic device's second coil, utilizing magnetic induction to generate an induced current without the need for a charger.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wired charging is used for wearable devices, then charging reliability is ensured, but user convenience deteriorates due to the need to carry a charger
Solution Approach 1:
The patent replaces the mechanical wired charging system with a wireless electromagnetic induction charging system. The wearable device includes a first coil that can wirelessly receive power from a charging device through electromagnetic induction, eliminating the need for physical connectors and cables. This substitution maintains charging reliability through standardized wireless power transfer while dramatically improving ease of operation by removing the requirement to carry or connect physical chargers.
2Ease of operation
If wireless charging is implemented in wearable devices, then charging convenience is improved, but device complexity increases due to additional charging components
Solution Approach 1:
The patent integrates the first coil and wireless charging components within the existing annular-shaped wearing member structure. The coil is positioned in the central hole of the annular member, utilizing the existing form factor efficiently. This nesting approach allows wireless charging functionality to be incorporated without significantly increasing overall device complexity or requiring separate external charging mechanisms.
Solution Approach 2:
The annular-shaped wearing member serves multiple functions: it provides the structural form factor for wearable deployment, contains the first coil for wireless charging, and maintains the aesthetic and ergonomic design. By making the wearing member multi-functional, the patent avoids adding separate dedicated charging components that would increase device complexity.
3Productivity
If the first coil is positioned to enable wireless charging, then charging efficiency is improved, but the wearing comfort may be affected by the coil placement
Solution Approach 1:
The patent places the first coil specifically in the central hole region of the annular-shaped wearing member, concentrating the electromagnetic induction functionality in a localized area. This positioning optimizes charging efficiency by ensuring proper alignment with external charging devices while confining the coil structure to a specific location that minimizes impact on overall wearing comfort. The local quality approach allows the rest of the wearing member to maintain its comfort-optimized design.
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 convenient charging of wearable devices by allowing them to be charged without removal, enhancing battery life and user experience by reducing the need for a separate charger.
Implementation Method 1
the first coil and the second coil that are in an energized state generate magnetic field lines in a same direction
Implementation Method 2
the first coil and the second coil that are in an energized state generate magnetic field lines in a same direction
Implementation Method 3
the first coil senses the alternating magnetic field of the second coil, to generate an induced current
Data Source
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AI summary
Embodiments of the present disclosure provide a wearable system, including a wearable device and an electronic device. The wearable device includes an annular-shaped wearing member and a first coil. The annular-shaped wearing member includes an outer annular surface, the first coil is accommodated inside the annular-shaped wearing member, and a laying surface of the first coil is arranged along a circumferential direction of the annular-shaped wearing member. The electronic device includes a second coil. In a case that the outer annular surface partially abuts against the electronic device, the first and second coils are disposed opposite to each other, and the first and second coils in an energized state generate magnetic field lines in a same direction. In the wearable system of the embodiments of the present disclosure, the wearable device can be charged while the electronic device is being used, which improves convenience of use of the wearable device.