Pivotable Loudspeaker Cover for Mobile Device Acoustic Resonance
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Solution Overview
Problem
Mobile devices such as smartphones and tablets have compact designs that result in poor sound quality, especially in the low-frequency range, due to small loudspeakers, and lack protection and adjustability for optimal viewing angles.
Innovation Solution
A speaker system with a protective shell that includes pivotable plate-shaped components forming a sound channel to enhance sound quality and provide protection, allowing the device to be positioned at desired angles for improved sound and display orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the mobile device is made compact and lightweight, then portability is improved, but sound quality deteriorates due to small speakers
Solution Approach 1:
The protective shell is divided into a base portion and a cover portion that can be separated. The cover portion includes plate-shaped components that can be pivoted to different positions, allowing the system to transform from a compact protective case to an expanded sound resonance structure when needed.
Solution Approach 2:
The patent transforms a two-dimensional protective case into a three-dimensional sound resonance structure by pivoting plate-shaped components from a flat configuration to an upright configuration, creating volume for sound resonance without adding weight to the device itself.
2Reliability
If a sound chamber is added to improve sound quality, then bass response is improved, but device bulkiness increases
Solution Approach 1:
The protective shell serves dual functions: as a protective case when the plate-shaped components are in the first position, and as a sound resonance chamber when pivoted to the second position. This eliminates the need for a separate sound chamber accessory.
Solution Approach 2:
The plate-shaped components are designed to be pivotable between different positions, transforming the static protective shell into a dynamic structure that can change its configuration from compact to expanded volume, providing sound resonance only when needed.
3Ease of operation
If the screen is exposed on an external surface for easy access, then ease of operation is improved, but protection against damage deteriorates
Solution Approach 1:
The cover portion with plate-shaped components can be dynamically positioned to either protect the screen when closed or allow access when opened, providing flexible protection without compromising ease of operation.
4Strength
If the device casing is made rigid for structural stability, then strength is improved, but adjustability for viewing angles deteriorates
Solution Approach 1:
The casing is segmented into rigid base portions for structural strength and movable plate-shaped components for adjustability, combining the benefits of both rigidity and flexibility.
Solution Approach 2:
The plate-shaped components are designed to be pivotable, allowing the user to adjust the viewing angle while the base portion maintains structural integrity, providing both strength and adaptability.
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 significantly improves sound quality by creating a resonance volume and provides protection and adjustability for mobile devices, maintaining a compact and lightweight design.
Implementation Method 1
a sound channel from the loudspeaker opening to the rear wall of the enclosure... The sound channel thus forms a connection from the loudspeaker opening to the back of the enclosure
Implementation Method 2
creating a resonance volume to enhance sound quality
Data Source
Figure 1~3
Figure 4~5
Figure 6~7
AI summary
The invention relates to a loudspeaker housing for a mobile device (2) with a loudspeaker (3). The loudspeaker housing comprises a protective shell (4) into which the mobile device (2) can be inserted, the protective shell (4) having a rear wall (5) and at least one side wall (6) with a loudspeaker opening (7), and a plate-shaped component (8) which is pivotably attached to the protective shell (4) about a first pivot axis (9). Furthermore, the loudspeaker housing (1) comprises at least a second plate-shaped component (10) which is pivotably attached to the first plate-shaped component (8) about a second pivot axis (11), wherein the pivot axes (9, 11) are preferably perpendicular to each other, and wherein the protective shell (4) has a sound channel (12) from the loudspeaker opening (7) to the rear wall (5) of the protective shell (4).