Portable Sound Device Rotary Cable Winding Mechanism
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Solution Overview
Problem
Conventional portable sound devices with wired connections are inconvenient due to tangled or caught audio cables, necessitating a compact wireless solution that efficiently manages the audio cable.
Innovation Solution
A portable sound device with a rotary module that winds or unwinds the audio cable, featuring a stationary unit with a shaft, a rotatable unit with a track system, and a stopper mechanism to minimize the number of components and optimize space, allowing smooth cable management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a rotary module is provided to receive the audio cable, then cable management is improved, but the device complexity increases
Solution Approach 1:
The patent combines the cable receiving function and the cable winding function into a single integrated rotary module. The rotary unit itself performs both receiving the audio cable and winding it up, eliminating the need for separate cable receiving members and winding members, thus reducing overall device complexity while maintaining cable management functionality.
Solution Approach 2:
The rotary unit is designed to perform multiple functions simultaneously: it acts as both the cable receiving mechanism and the cable winding mechanism. This multi-functional design reduces the total number of components needed in the cable management system while providing comprehensive cable management capabilities.
2Reliability
If a long audio cable is used to connect earbud to body, then audio signal transmission is improved, but the cable becomes tangled or caught when not in use
Solution Approach 1:
The rotary module performs preliminary action by automatically winding up the audio cable after each use. When the user removes the earbud or finishes using the audio cable, the rotary module actively winds the cable back into a compact form, preventing tangling and preparing it for the next use without requiring manual intervention.
Solution Approach 2:
The cable management system is self-serving through the rotary module that automatically winds and stores the audio cable. The system monitors cable usage and autonomously manages the cable by winding it up when not in use, eliminating the need for users to manually manage the cable and preventing tangling issues.
3Volume of moving object
If the rotary module has a compact structure, then portability is improved, but the cable winding capability may be compromised
Solution Approach 1:
The patent employs a nested structure where the audio cable is wound around the rotary unit in a compact, space-efficient manner. The cable is layered and organized within the rotary module's limited space, allowing maximum cable winding capacity within a compact volume. This nested arrangement maintains portability while ensuring adequate cable storage and winding capability.
Data Source
AI summary
A portable sound device includes: a main body having an audio output unit holder; an audio output unit detachably mountable in the audio output unit holder and configured to output audio; an audio cable coupled to the audio output unit and configured to transmit an audio signal to the audio output unit, one end of the audio cable located outside the main body and the other end of the audio cable located inside the main body; and a rotary module rotatably mounted in the main body and configured to wind or unwind the audio cable according to a rotational direction of the rotary module.