Resilient Speaker Mounting for Vehicle Vibration Isolation

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Solution Overview

Problem

Mounting speaker assemblies to vehicles is challenging due to the movement of the vehicle and relative movement of its frame members, which can cause squeaks, rattles, and potential damage to the housing and its components.

Innovation Solution

A speaker assembly with an elongate housing and inboard elastomeric bodies within retention chambers, coupled with vehicle frame mounting brackets via fasteners, providing a resilient and secure mounting arrangement that reduces noise and damage by using elastomeric bodies and backing plates to absorb shocks and vibrations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If rigid mounting brackets are used to securely mount the speaker assembly to vehicle frame members, then the mounting security is improved, but the housing and internal components may suffer damage due to vehicle movement and frame member relative movement

Engineering Contradiction:

Improvemounting securityVSAvoiddamage to housing and components

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent applies beforehand cushioning by incorporating elastomeric bodies (both inboard and outboard) into the mounting bracket assembly before installation. These elastomeric components are positioned to absorb shocks and vibrations that will occur during vehicle operation, preventing damage to the housing and internal speaker components while maintaining secure mounting.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

2Reliability

If rigid mounting brackets are used to securely mount the speaker assembly to vehicle frame members, then the mounting security is improved, but squeaks and rattles will occur due to vehicle movement and frame member relative movement

Engineering Contradiction:

Improvemounting securityVSAvoidsqueaks and rattles

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent applies parameter changes by transitioning from a purely rigid mounting system to one that incorporates elastomeric materials. This changes the physical parameters of the mounting system, allowing it to flex and absorb relative movements between the vehicle frame members and the speaker assembly, thereby eliminating squeaks and rattles while maintaining secure mounting.

Inventive Principle:

Principle #35Parameter changes

3Object-affected harmful factors

If resilient mounting with elastomeric bodies is used to reduce damage and noise, then the protection against damage and noise is improved, but the device complexity increases due to additional components

Engineering Contradiction:

Improvedamage and noise reductionVSAvoidmounting arrangement complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent applies merging by combining multiple functions into integrated components. The inboard elastomeric body and outboard elastomeric body are merged with the mounting bracket structure, creating a unified resilient mounting system that provides both vibration isolation and structural support without requiring separate complex assemblies.

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 reduces squeaks, rattles, and potential damage to the speaker assembly by providing a resilient and secure mounting system that absorbs shocks and vibrations, ensuring stable audio entertainment in moving vehicles.

Implementation Method 1

a respective inboard elastomeric body within each retention chamber... so that each vehicle frame mounting bracket is resiliently coupled to the elongate housing

Methodology Applied

Scientific EffectElasticity: Elasticity

Implementation Method 2

a respective outboard elastomeric body between each vehicle frame mounting bracket and the elongate housing

Methodology Applied

Scientific EffectElasticity: Elasticity

Data Source

PatentUS11503389B2Speaker assembly with resilient mounting arrangement for a vehicle and associated methods

Publication Date: 2022.11.15 VOXX INT CORP

AI summary

A speaker assembly may be for being resiliently mounted to spaced apart frame members of a vehicle. The speaker assembly may include an elongate housing having a respective retention chamber at each opposing end, and audio speakers and associated wireless receiver circuitry carried by the housing. The speaker assembly may also include a respective inboard elastomeric body within each retention chamber, and a respective vehicle frame mounting bracket at each end of the elongate housing and to be mounted to an adjacent frame member of the vehicle. The assembly may further include respective fasteners coupling each vehicle frame mounting bracket to the elongate housing via a corresponding inboard elastomeric body so that each vehicle frame mounting bracket is resiliently coupled to the elongate housing.