Vehicle Interior Sound Vibration Panels for Stereo Audio Output
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Solution Overview
Problem
Conventional sound generating apparatuses for vehicles face limitations in producing realistic or stereo multichannel sounds due to the size and space constraints of coil-type speakers, which restrict the number of speakers that can be used.
Innovation Solution
The use of vehicle interior materials as sound vibration plates, where sound generating devices, such as coil or piezoelectric type, are integrated to vibrate these materials, allowing for the output of sounds through the vehicle's interior and glass windows, enhancing sound characteristics by utilizing the materials' large surface area for low-pitched sounds.
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 complexity and space requirements increase
Solution Approach 1:
The vehicle interior material serves multiple functions: it acts as both the interior finishing material and the sound vibration plate. This eliminates the need for separate speaker components while maintaining sound quality, as the interior material itself vibrates to produce audio output.
Solution Approach 2:
The invention merges the interior material and the sound vibration plate into a single integrated component. By combining these previously separate elements, the system achieves stereo sound output without increasing the number of discrete speaker units, thus reducing device complexity.
2Reliability
If coil-type speakers are used to output sound, then sound generation is achieved, but space constraints limit the number of speakers that can be installed
Solution Approach 1:
The interior material performs dual functions as both interior finishing and sound vibration plate, eliminating the need for separate coil-type speaker components. This integration allows sound output capability without requiring additional space for traditional speaker installations.
Solution Approach 2:
The invention extracts the sound vibration function from the traditional coil-type speaker structure and transfers it to the interior material itself. This removes the bulky speaker components while retaining the essential sound generation capability, thereby freeing up 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
This approach enables the production of realistic and stereo multichannel sounds within vehicles without the need for additional speakers, improving sound quality and overcoming space constraints.
Implementation Method 1
a sound generating device to be covered by a vehicle interior material of a vehicle, the sound generating device is configured to vibrate the vehicle interior material
Data Source
AI summary
A sound generating apparatus for vehicles may include a sound generator including a sound generating member configured to vibrate a vehicle interior material of a vehicle. The sound generating member may include a plurality of vibration generator spaced apart from one another, a first protection member at a first surface of the plurality of vibration generators, and a second protection member at a second surface opposite to the first surface of the plurality of vibration generators.