Vehicle Sound Enclosure Using Body Panels for Low-Frequency Audio

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Solution Overview

Problem

Existing 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, making it difficult to enhance sound characteristics and pressure levels, especially in low-pitched sound bands.

Innovation Solution

A sound apparatus for vehicles that includes an enclosure with a sound generating module and a fixing part, which is coupled to the vehicle structure using a screw or hook type coupling, allowing for easy attachment and detachment, and utilizing a vibration member with holes to enhance sound characteristics and pressure levels by vibrating the vehicle structure to generate sound.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the number of speakers is increased to provide stereo sound, then sound quality is improved, but device complexity and space requirements increase

Engineering Contradiction:
Improvesound qualityVSAvoidnumber of speakers
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the sound generation function with the vehicle structure itself by using the vehicle's panel or body part as the vibration plate. This eliminates the need for separate speaker units while maintaining sound output capability, thereby improving sound quality without increasing device complexity or speaker count.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The vehicle structure serves multiple functions: it acts as both the structural component of the vehicle and the sound-generating vibration plate. This multi-functionality allows the system to provide stereo sound capabilities without adding dedicated speaker components, resolving the contradiction between sound quality and device complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If coil-type speakers are used to provide stereo sound, then sound output is achieved, but size constraints and space limitations prevent realistic sound reproduction

Engineering Contradiction:
Improvestereo sound outputVSAvoidspeaker size
Core Design Contradiction:
ReliabilityVSVolume of moving object

Solution Approach 1:

The invention combines the vibration plate function with the vehicle structure, eliminating the need for separate coil-type speaker units. The vehicle's existing structural panels serve as the sound-generating surface, thereby achieving stereo sound output without the size constraints and space requirements of traditional speakers.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If traditional speakers are installed to enhance sound characteristics, then sound output is provided, but installation complexity and attachment difficulty increase

Engineering Contradiction:
Improvesound characteristicsVSAvoidinstallation process
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent merges the sound generation system with the vehicle structure, using the vehicle's existing panels as vibration plates. This eliminates the need for separate speaker installations and complex attachment processes, thereby enhancing sound characteristics while simplifying the installation process to minimal structural modifications.

Inventive Principle:
Principle #5Merging (Combining)

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 effectively enhances sound characteristics and pressure levels across various sound bands, including low-pitched sounds, by utilizing the vehicle structure as a vibration plate, providing a more immersive audio experience while being concealed from view and easy to install.

Implementation Method 1

configured to vibrate a portion of the vehicle structure to generate a sound

Methodology Applied
Scientific EffectVibration: Vibration

Data Source

PatentUS20240422473A1Sound apparatus for vehicle and vehicular apparatus including the same
Publication Date: 2024.12.19 LG DISPLAY CO LTD
  • US20240422473A1 patent drawing
  • US20240422473A1 patent drawing
  • US20240422473A1 patent drawing

AI summary

A sound apparatus for a vehicle can include an enclosure having an internal space and a sound generating module disposed at the internal space, and a fixing part configured at the enclosure. The fixing part can be fixed to a supporting part at a vehicle structure.