Detachable Vehicle Speaker Enclosure for Higher Low-Frequency SPL
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Solution Overview
Problem
Existing sound apparatuses in vehicles face limitations in producing realistic or stereo sounds due to the constraints of coil-type devices, particularly in terms of sound pressure level and the inability to increase the number of speakers effectively.
Innovation Solution
A sound apparatus comprising an enclosure with a sound generating module and a coupling part that can be detachably fastened to a protrusion part, enhancing sound characteristics and sound pressure level, especially in the low-pitched sound band, and allowing for easier installation and removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If coil-type speakers are used in vehicles, then the sound apparatus can be installed in the vehicle interior, but the sound pressure level and sound characteristics are limited
Solution Approach 1:
The sound apparatus is divided into separate components: an enclosure with sound generating modules and a separate coupling part. This segmentation allows the system to achieve high sound pressure levels through multiple modules while keeping the installation structure simple and modular.
Solution Approach 2:
Multiple sound generating modules are combined within a single enclosure to achieve high sound pressure levels. The coupling part merges the enclosure with the vehicle interior surface, creating an integrated installation solution that simplifies the overall system configuration.
2Adaptability or versatility
If the number of speakers is increased to provide stereo sound, then sound quality improves, but the space required and installation complexity increase
Solution Approach 1:
The sound generating modules are arranged in a vertical configuration within the enclosure, utilizing the vertical dimension rather than spreading speakers across horizontal space. This allows multiple speakers to be accommodated in a compact footprint while maintaining stereo sound capability.
Solution Approach 2:
Multiple sound generating modules are nested within the single enclosure structure, with each module containing speakers arranged in vertical stacks. This nesting approach allows multiple speakers to occupy minimal space while providing full stereo capability.
3Reliability
If speakers are permanently installed in the vehicle, then stable sound output is achieved, but removal and rework are difficult
Solution Approach 1:
The coupling part is designed with dynamic fastening capabilities that allow the enclosure to be securely attached to the vehicle interior surface during use, providing stable sound output. When removal is needed, the fastening mechanism can be easily released, enabling simple detachment and reinstallation.
4Adaptability or versatility
If more speakers are added to overcome coil-type limitations, then sound characteristics improve, but the device size and installation complexity increase
Solution Approach 1:
The enclosure utilizes a compact, space-efficient design that accommodates multiple sound generating modules in a small volume. The coupling part integrates seamlessly with the vehicle interior surface, minimizing the overall space required while housing multiple speakers for enhanced sound characteristics.
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 proposed sound apparatus significantly enhances sound characteristics and sound pressure levels, particularly in the low-pitched sound band, while also improving the balance and flatness of sound pressure levels, thus providing a more immersive audio experience in vehicles.
Implementation Method 1
a sound generating module at the internal space of the enclosure
Data Source
AI summary
A sound apparatus and a vehicular apparatus including the same are discussed. The sound apparatus can include an enclosure having an internal space and a protrusion part having an opening hole connected to the internal space, a sound generating module at the internal space of the enclosure, and a coupling part including a hollow part connected to the internal space. The coupling part can be accommodated into the opening hole of the protrusion part. The coupling part can be detachably fastened to the protrusion part.