Chassis-Integrated Speaker Enclosure for Compact Audio
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Solution Overview
Problem
Current speaker designs in electronic devices, such as smartphones and tablets, do not fully utilize available internal volume, resulting in suboptimal audio performance that does not align with the high-quality visual experience provided, leading to a compromised user experience.
Innovation Solution
The use of the device's back-skin chassis as part of the acoustic enclosure, combined with acoustic module materials like polyurethane and plastic, to maximize internal volume and reduce weight and thickness, while effectively damping vibrations for improved audio performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional drop-in speaker solutions are used, then device assembly is simplified, but audio performance and utilization of internal volume are compromised
Solution Approach 1:
The patent merges the speaker enclosure with the device chassis itself, where the chassis serves dual purposes as both structural support and acoustic enclosure. This integration eliminates the need for separate drop-in speaker solutions while maximizing internal volume utilization and improving audio performance through optimized acoustic cavity design.
2Reliability
If larger speaker enclosures are used to improve audio performance, then sound quality increases, but device volume and weight increase
Solution Approach 1:
The patent utilizes the device chassis as the acoustic enclosure, effectively using the existing three-dimensional space of the device body for acoustic purposes. This approach maximizes the use of available internal volume without requiring additional external space, thereby improving audio performance while maintaining compact device dimensions.
3Reliability
If more material is used for speaker enclosure, then acoustic performance improves, but device weight increases
Solution Approach 1:
The patent makes the device chassis serve multiple functions: structural support, housing for components, and acoustic enclosure. By using the existing chassis material for acoustic purposes, no additional material is required, thereby improving acoustic performance without increasing device weight.
4Reliability
If internal volume is maximized for acoustic advantage, then audio output improves, but device thickness increases
Solution Approach 1:
The patent utilizes the existing device thickness and internal cavity space for acoustic purposes, maximizing the use of available three-dimensional volume without requiring additional thickness. The chassis itself forms the acoustic enclosure, allowing optimal acoustic performance within the constrained form factor.
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 approach enables more compact form factors with enhanced audio quality by leveraging dead system volume and absorbing vibrations, thereby improving sound pressure levels without increasing overall system volume.
Implementation Method 1
Vibration (while playing high Sound Pressure Levels) is absorbed into the chassis, which acts as a damper.
Data Source
AI summary
Integrated speaker enclosures for electronic devices. A device chassis portion with an inner face and an outer face can be connected with a speaker enclosure portion with an inner face, an outer face, and edges. The edges match the inner face of the device chassis portion to provide an audio enclosure when the speaker enclosure portion is aligned with and in contact with the device chassis portion.