Wireless Charging Indicator for Wearable Battery Status
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Solution Overview
Problem
Wearable electronic devices without indicators for battery status pose challenges in user-friendly charging status monitoring, especially for small devices with low charging currents, where detecting charging status is difficult.
Innovation Solution
A system comprising a charging unit with wireless charging capabilities, wireless communication means, and indication means, which collaborates with the electronic device to detect and communicate battery status information, allowing the charging unit to indicate the status to the user.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the electronic device is made small to improve wearability, then the device size is reduced, but the charging current becomes very low making it challenging to detect charging status
Solution Approach 1:
The patent introduces a charging unit as an intermediary device that performs the charging status detection function. The charging unit includes a controller that detects charging status based on charging current, and an indicator that visually displays the charging status. This mediator transfers the detection function from the small wearable device to the larger charging unit, solving the contradiction between small device size and charging status detectability
2Volume of moving object
If the electronic device is made small to improve wearability, then the device size is reduced, but the device cannot include built-in indicators for battery status
Solution Approach 1:
The patent merges the battery status indication function with the charging unit. The charging unit includes an indicator that displays charging status information, combining the functions of charging and status indication into a single device. This allows small wearable devices to provide battery status information without including built-in indicators, as the charging unit serves as a shared indication device
3Ease of operation
If wireless charging is used to improve convenience, then charging convenience is improved, but the charging current is very low in small devices making status detection challenging
Solution Approach 1:
The charging unit acts as an intermediary that receives wireless charging power and performs the detection function. The controller in the charging unit detects charging status based on the wireless charging current, and the indicator displays this status. This mediator approach maintains the convenience of wireless charging while solving the detection difficulty caused by low charging currents in small devices
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 users to monitor the battery status of wearable devices during charging, even without built-in indicators, by using the charging unit to display charging progress or full charge status, enhancing user convenience.
Implementation Method 1
In the wireless charging the charger comprises a transmitting coil to transmit electromagnetic power to the receiving coil which is integrated or embedded in the chargeable wearable device
Data Source
AI summary
The invention relates to a system for indicating information representing battery status of an electronic device. The system comprises a charging unit and an electronic device. The charging unit comprises charging means, wireless communication means, and indication means. The electronic device comprises a rechargeable battery, charging means, and wireless communication means. During the wireless charging of the electronic device, the electronic device is configured to detect information representing the battery status of said electronic device and to communicate the detected information representing the battery status to the charging unit, and the charging unit is configured to receive the information from the electronic device and to indicate at least part of the received information representing the battery status of the electronic device. The invention relates also to a method for indicating information representing battery status of an electronic device.