Wireless Audio Charging Control Using Pairing History Thresholds
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless audio devices face challenges in managing battery charge levels during storage and transport to prevent overcharging, which can be unsafe and hinder performance, while ensuring a seamless user experience upon initial use.
Innovation Solution
A wireless audio device system that includes a controller and switch to detect pairing with an audio source, enabling it to transition from restricted to normal charging modes based on paired history data, allowing full charging only when paired with an audio source.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless charging is implemented for audio devices, then charging convenience is improved, but susceptibility to foreign objects and charging interference increases
Solution Approach 1:
A charging case is introduced as an intermediary device between the wireless charger and the audio device. The charging case contains a foreign object detector that identifies and prevents charging when foreign objects are present, while still enabling convenient wireless charging for the audio device when conditions are safe.
Solution Approach 2:
The system implements feedback through foreign object detection mechanisms in the charging case. The detector continuously monitors the charging environment and provides feedback to control the charging process, stopping or preventing charging when foreign objects are detected to avoid interference or safety issues.
2Reliability
If the charging case remains closed to protect the audio device, then protection is improved, but heat dissipation deteriorates
Solution Approach 1:
The charging case lid is designed to dynamically adjust its position during charging. The lid automatically opens to a specific degree during the charging process to allow heat dissipation, while still providing sufficient protection. This dynamic adjustment balances protection and thermal management requirements.
3Temperature
If the charging case lid is always open for heat dissipation, then temperature control is improved, but susceptibility to foreign objects increases
Solution Approach 1:
The charging case lid dynamically adjusts its opening degree based on charging status. During charging, the lid opens partially to enable heat dissipation while maintaining protection. When charging is complete or not active, the lid remains closed to protect the audio device from foreign objects, thus balancing thermal management and protection requirements.
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 wireless audio devices to be shipped with partially charged batteries without violating charge thresholds, ensuring safe and efficient operation upon user activation, thereby providing a seamless 'out-of-the-box' experience.
Implementation Method 1
a processor configured to detect, while the audio device is being wirelessly charged, a foreign object near the audio device
Implementation Method 2
systems and methods for wirelessly charging an audio device
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A wireless audio device, charging system, and method of charging a battery. The wireless audio device includes a communication module configured to enable the wireless audio device to communicate wirelessly and a battery. A charging interface is configured to establish a power transfer connection to the battery from a power source. A memory is configured to store paired history data indicating that the wireless audio device has been paired to an audio source upon the audio device being wirelessly paired. A controller is configured to detect the power transfer connection, determine a charge level of the battery, check the memory for the paired history data, and generate a control signal for selectively disabling the power transfer connection to prevent the charge level from exceeding a preset threshold unless the memory contains the paired history data.