Seat Pad Speaker Bracket Integration for Tactile Audio
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Solution Overview
Problem
Existing vehicle seat designs do not effectively integrate a speaker assembly to enhance the listening experience for occupants by transmitting low-frequency vibrations, while ensuring safety and compliance with regulations.
Innovation Solution
A speaker cavity is formed in the seat pad with a co-molded retention bracket that encapsulates the speaker assembly, allowing acoustic radiation to be transmitted through the foam material, and features such as a flange, ridge, and guidance notches ensure secure mounting and orientation of the speaker assembly without separate mounting hardware.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a speaker assembly is integrated into the seat pad, then the listening experience is enhanced through tactile low-frequency vibrations, but the structural complexity and manufacturing difficulty increase
Solution Approach 1:
The retention bracket is co-molded with the seat pad, merging two components into a single integrated structure. This eliminates separate mounting hardware and simplifies the assembly process while providing secure speaker retention through the encapsulated bracket design
Solution Approach 2:
The retention bracket serves multiple functions: it provides structural support for the speaker assembly, ensures secure mounting through the foam encapsulation, and maintains proper orientation through its geometric features. This multi-functionality reduces the need for additional separate components
2Reliability
If the speaker assembly is securely retained in the pad, then reliability and safety are improved, but the manufacturing precision requirements increase
Solution Approach 1:
The retention bracket is pre-formed with specific geometric features (flange, ridge, indents) that are then encapsulated by the foam material during co-molding. This preliminary preparation ensures that the bracket maintains its structural integrity and retention capabilities while being integrated into the seat pad
3Ease of operation
If the speaker cavity extends through to the seating surface, then acoustic radiation to the occupant is improved, but the structural integrity and comfort may be compromised
Solution Approach 1:
The speaker cavity is positioned specifically in the lumbar region of the seat pad, providing localized acoustic transmission to the occupant's back. The cavity geometry is optimized to allow acoustic radiation through the foam material while maintaining the overall structural integrity and comfort of the seat pad
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 the listening experience by providing tactile low-frequency vibrations to occupants while ensuring safety and regulatory compliance through secure and efficient integration of the speaker assembly within the seat pad.
Implementation Method 1
The speaker retention bracket is configured to mount a speaker assembly within the cavity to allow acoustic radiation to be transmitted through the foam material to a seated occupant
Data Source
AI summary
A vehicle seat is provided with a seat pad formed of a foam material defining a seating surface for supporting an occupant and a rear surface opposite the seating surface. A speaker cavity for receiving a speaker assembly is formed in the pad and extends from the rear surface toward the seating surface. At least one speaker retention bracket is disposed in the speaker cavity. The retention bracket is co-molded with the pad so at least a portion of the retention bracket is encapsulated in foam material to retain the bracket in the cavity, the retention bracket having at least one retention feature extending within the cavity to cooperate with the speaker assembly and retain the speaker assembly in the pad. The speaker retention bracket is configured to mount a speaker assembly within the cavity to allow acoustic radiation to be transmitted through the foam material to a seated occupant.