Audio Device Freefall Protection with Spring Arm and Buoyancy
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Solution Overview
Problem
Wireless audio devices face challenges in preventing damage during falls and unintended use scenarios, with a need for effective harm prevention and retrieval mechanisms to minimize impact and recover lost devices.
Innovation Solution
The implementation of an extended arm and spring mechanism in audio devices, combined with sensors and electroactive polymers, allows for dynamic impact point control during free falls, impact mitigation, and autonomous retrieval to prevent loss and damage, including liquid mitigation by floating the device if submerged.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an extended arm and spring mechanism is added to control impact point during freefall, then impact mitigation capability is improved, but device complexity increases
Solution Approach 1:
The patent employs dynamic elements including an extended arm that can move relative to the device housing and a spring mechanism that activates during impact. These dynamic components allow the device to adapt its impact point and distribute impact forces, improving reliability without requiring a completely rigid complex structure
Solution Approach 2:
The spring mechanism is pre-positioned to provide cushioning before impact occurs. During freefall detection, the extended arm positions the device such that the spring is ready to absorb impact forces, providing beforehand protection that improves reliability while keeping the cushioning mechanism integrated rather than adding separate complex systems
2Reliability
If sensors and electroactive polymers are integrated for autonomous retrieval and liquid mitigation, then harm prevention capability is improved, but device complexity increases
Solution Approach 1:
The patent integrates multiple sensors (accelerometers, gyroscopes) and electroactive polymers that serve multiple functions: detecting freefall events, determining impact orientation, triggering retrieval mechanisms, and enabling liquid mitigation by floating the device. This multi-functionality improves harm prevention capability while avoiding the complexity of separate dedicated systems for each function
Solution Approach 2:
The electroactive polymers and integrated sensors enable the device to autonomously detect harmful conditions and execute mitigation actions without external intervention. The device self-adjusts its orientation during freefall, autonomously triggers retrieval protocols, and automatically activates floating mechanisms for liquid mitigation, improving reliability while reducing the need for complex external control systems
3Reliability
If the device is designed to float when submerged in liquid, then liquid damage protection is improved, but device complexity increases
Solution Approach 1:
The patent incorporates buoyancy mechanisms that counteract the weight of the device when submerged in liquid. By integrating floating elements that provide upward buoyant force, the device automatically rises to the surface when accidentally submerged, protecting internal components from liquid damage while using a natural physical principle rather than complex active control systems
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
This solution effectively minimizes damage from falls by controlling the impact point and retrieving the device to prevent loss, ensuring user safety and device integrity, while also addressing liquid exposure by enabling the device to float, thus safeguarding the audio device's functionality.
Implementation Method 1
A wireless audio device (310) includes an extended arm (313) that can be extended and retracted, a spring to extend and retract the extended arm (313)
Implementation Method 2
Electroactive polymers (EAPs) are polymers that exhibit a change in size or shape when stimulated by an electric field
Implementation Method 3
The method further includes responsive to the indication that water is present one or more processors taking a liquid mitigation action
Data Source
AI summary
Aspects of the present invention disclose a method for safeguarding an audio device by enabling the audio device to perform harm prevention and retrieval related task based on detecting a set of conditions within an operating environment of the audio device. The method includes one or more processors determining a freefall event of an audio device is occurring. The method further includes one or more processors determining an operating environment type of a surface the audio device contacts after the freefall event ends, wherein the operating environment type of the surface indicates liquid is present. The method further includes responsive to the indication that water is present one or more processors taking a liquid mitigation action.