Vehicle Seat Back Resonator Module for Acoustic Integration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle seat back designs with integrated sound devices, such as loudspeakers, often complicate the structure, increase mass and volume, and are difficult to produce, while providing only average sound quality.
Innovation Solution
A vehicle seat back design featuring a frame with a hollow extension module forming a sound box, composed of two parts with complementary shapes, that is easily fixed using headrest rods, allowing for improved modularity and simplified assembly, with the sound box being integrated into the backrest without additional parts, and accommodating sound devices within the structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sound devices are integrated into the door or frame of the vehicle, then sound quality is provided, but the production of these structures is complicated
Solution Approach 1:
The seat back is divided into modular components: a frame, a hollow extension module forming a sound box, and headrest fixing rods. This segmentation allows the sound box to be produced separately and integrated into the seat back, simplifying manufacturing while maintaining sound quality.
Solution Approach 2:
The hollow extension module serves multiple functions: it forms the sound box for acoustic devices, provides structural support for the headrest fixing rods, and integrates into the seat back frame. This multi-functionality reduces the need for separate components, simplifying production.
2Reliability
If loudspeakers are integrated at the level of the side surfaces with a chamber acting as a sound box, then sound quality is improved, but the structure of the headrest is greatly complicated while increasing its mass and volume
Solution Approach 1:
The sound box (hollow extension module) is merged with the seat back structure rather than being a separate headrest component. The headrest fixing rods integrate both the headrest mounting function and the sound box structural support, reducing overall device complexity while maintaining sound quality.
3Strength
If additional parts are added to fix the sound box to the backrest, then the sound box is securely attached, but the production process becomes more complex
Solution Approach 1:
The headrest fixing rods serve dual purposes: they secure the headrest to the seat back and simultaneously provide the structural connection for the hollow extension module (sound box). This eliminates the need for separate attachment parts, maintaining attachment strength while simplifying production.
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 design simplifies production, reduces weight, and enhances sound quality by integrating a modular sound box that is robust and easy to assemble, while optimizing the use of space within the vehicle.
Implementation Method 1
the seat back has an added resonance box which improves its modularity and simplifies its being fixed together
Data Source
Figure 1
Figure 2A~2B
AI summary
The invention relates to a seat back-rest (1) for a vehicle, comprising a frame (2), characterised in that it also comprises a hollow extension module (3) forming a resonator attached to an upper portion of the frame.