Vehicle Sound Module Structure for Compact Stereo Output
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Solution Overview
Problem
Conventional sound apparatuses in vehicles, particularly those using coil-type devices, face limitations in producing realistic or stereo sounds due to size constraints and space limitations, which restrict the number of speakers that can be used, thereby compromising sound quality and pressure levels.
Innovation Solution
A sound apparatus comprising a sound generating module with a vibration member, an enclosure, and a coupling member, where the connection member is made of a different material, enhancing sound characteristics and pressure levels by configuring the vibration member with holes and integrating a signal supply member and vibration generating parts as one component, and using a protrusion part and coupling part as one component for improved sound reproduction and protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the number of speakers is increased to output stereo sound, then sound quality is improved, but device size and space requirements increase
Solution Approach 1:
The patent combines multiple functional components into an integrated sound generating module. The vibration member serves both as a structural component and a sound radiation surface, while the enclosure integrates multiple functions including sound reflection, protection, and structural support. This merging allows achieving stereo sound capability without proportionally increasing overall device volume.
Solution Approach 2:
The vibration apparatus is configured at the vibration member with nested or integrated positioning. The enclosure surrounds the sound generating module while maintaining compact dimensions. This nesting approach allows multiple components to occupy overlapping or adjacent spaces efficiently, improving sound quality without linearly increasing device footprint.
2Device complexity
If coil type devices are used for speakers, then device simplicity is maintained, but sound characteristic and pressure level are limited
Solution Approach 1:
The patent changes the fundamental operating principle from electromagnetic (coil-type) to mechanical vibration-based sound generation. The vibration apparatus generates vibrations that directly move the vibration member, creating sound waves. This parameter change in the driving mechanism enables superior sound characteristics and pressure levels while maintaining relatively simple device structure.
Solution Approach 2:
The patent replaces the electromagnetic coil system with a mechanical vibration generation system. The vibration apparatus directly mechanically vibrates the vibration member, eliminating the need for complex coil assemblies, magnets, and voice coils. This substitution achieves better sound performance with simplified mechanical construction.
3Adaptability or versatility
If space in vehicles is constrained, then installation flexibility is improved, but number of speakers that can be installed is reduced
Solution Approach 1:
The sound system is divided into modular sound generating modules that can be independently installed in different vehicle locations. Each module contains integrated components (vibration apparatus, vibration member, enclosure) that function as a complete unit. This segmentation allows flexible installation in constrained vehicle spaces while achieving stereo sound through strategic placement of multiple modules.
Solution Approach 2:
The enclosure serves multiple functions simultaneously: it acts as a sound reflection surface, a protective housing for internal components, a structural mounting element, and a space-efficient design feature. This multi-functionality allows the device to achieve stereo sound capability in vehicle environments with limited installation space.
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 solution enhances sound characteristics and pressure levels, particularly in the low-pitched sound band, by optimizing the sound generating module's design and materials, allowing for more effective sound reproduction and protection from external impacts while maintaining a compact and aesthetically pleasing form.
Implementation Method 1
a vibration member (331) and a vibration apparatus (333, 335) configured at the vibration member (331)
Data Source
AI summary
A sound apparatus in one example includes a sound generating module having a vibration member and a vibration apparatus configured in the vibration member, an enclosure disposed in the sound generating module with an internal space therebetween, a coupling member between the enclosure and the vibration member, and a connection member connected to the enclosure. The connection member includes a material different from a material of the coupling member.