Pivotable Loudspeaker Resonance Volume for Portable Audio
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Solution Overview
Problem
Compact electronic devices like tablets and smartphones suffer from poor sound quality, especially in the low-frequency range, due to their small loudspeakers, and existing accessories that enhance sound quality are often bulky and heavy, making them unsuitable for portable use.
Innovation Solution
A loudspeaker system comprising three plate-shaped components that form a resonance volume with a triangular base, allowing for pivotable connections and folding to create a compact, portable design that can be set up at various angles for improved sound quality and support, using hinges, magnetic, or clamping connections for stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sound and resonance volume is added to improve sound quality, then sound quality is improved, but device weight and size increase
Solution Approach 1:
The protective cover and resonance body are merged into a single integrated component. The protective cover serves dual functions: protecting the tablet screen and forming part of the resonance volume structure. This eliminates the need for separate protective cases and resonance bodies, reducing overall weight while maintaining sound quality enhancement capabilities.
Solution Approach 2:
The protective cover is designed to serve multiple functions simultaneously: it acts as a protective barrier for the tablet, forms structural elements of the resonance volume, and provides mounting surfaces for additional loudspeakers. This multi-functionality reduces the need for separate components, thereby reducing weight while achieving sound quality improvement.
2Reliability
If a sound and resonance volume is added to improve sound quality, then sound quality is improved, but device portability decreases
Solution Approach 1:
The protective cover and resonance body are merged into a single integrated component that can be easily attached and removed. This integration allows the user to carry the cover with the tablet for enhanced sound quality, or separate them when portability is the priority, thus maintaining ease of operation.
Solution Approach 2:
The resonance body incorporates pivotable connections and foldable elements that allow it to transform between different configurations. When not in use, the resonance body can be folded flat or detached, making the tablet highly portable. When needed, it can be quickly assembled to provide enhanced sound quality.
3Reliability
If three side walls are used to form a resonance body, then resonance volume is created, but device complexity increases
Solution Approach 1:
The protective cover is integrated with the resonance body structure, so that the cover itself forms part of the three side walls. This merging reduces the number of separate components needed and simplifies the overall structure while still creating the necessary resonance volume.
Solution Approach 2:
The resonance body is divided into multiple plate-shaped components that can be independently manufactured and then assembled using simple hinge connections. This segmentation allows for easier manufacturing and assembly, reducing overall structural complexity while maintaining the resonance volume functionality.
4Reliability
If the loudspeaker opening is directed towards the interior of the volume, then sound quality is improved, but the loudspeaker mounting becomes more complex
Solution Approach 1:
Instead of directing the loudspeaker opening outward as is conventional, the loudspeaker is mounted with its opening facing inward toward the resonance volume. This inversion allows the sound to be amplified by the resonance body, improving sound quality. The mounting complexity is reduced by using standardized speaker holders that can be oriented in different directions.
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
The system provides enhanced sound quality in the low-frequency range while maintaining a lightweight and compact design, allowing for flexible angle adjustments and increased stability, making it suitable for portable use.
Implementation Method 1
a loudspeaker system with a first panel-shaped component (101), which has at least one loudspeaker (11), and a second panel-shaped component (102), which is attached to the first component (101) so that it can pivot about a first pivot axis (12)
Implementation Method 2
The three side walls, which according to the invention are designed as plate-shaped components, and the surface of a base on which the components are placed form, for example, a prism with a triangular base and an end face open on one side
Data Source
Figure 1~3
Figure 4~5
Figure 6~7
AI summary
The invention relates to a loudspeaker system comprising a first plate-shaped component (1; 101), which comprises at least one loudspeaker (11), a second plate-shaped component (2; 102), which is fastened to the first component (1; 101) so as to be pivotable about a first pivot axis (12), the system comprising at least a third component (5; 105; 205) which is fastened to the second component (2; 102) so as to be pivotable about a second pivot axis (13). The pivot axes (12, 13) are arranged in each case on side edges of the components (1, 2, 5; 101, 102, 105; 201, 205) and are disposed preferably at right angles to each other.