Speaker Vibration Isolator with Elastic Retainers

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing speaker vibration isolation methods, such as using vibration isolation bushings, are insufficient in limiting the transmission of vibrations from speakers to mounting members.

Innovation Solution

A speaker vibration isolator made of elastic material with a receiver ring and retainers that surround the speaker and urge its projections toward the ring, providing a weak coupling that effectively dampens and isolates vibrations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a vibration isolation bushing is used to reduce vibration transmission, then vibration isolation is improved, but the isolation effectiveness is insufficient

Engineering Contradiction:
Improvevibration transmissionVSAvoidisolation effectiveness
Core Design Contradiction:
Object-affected harmful factorsVSReliability

Solution Approach 1:

The vibration isolation system is segmented into multiple independent retainers (first, second, third retainers) that contact different portions of the speaker projection. Each retainer independently contributes to vibration isolation, and their combined effect provides superior isolation compared to a single bushing. The segmentation allows each retainer to be optimized for specific contact points, enhancing overall isolation effectiveness.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The elastic retainers serve as intermediary elements between the speaker projection and the receiver ring. These retainers mediate the vibration transmission by providing a compliant interface that absorbs and dampens vibrations before they reach the mounting structure, achieving better isolation than direct bushing-to-cabinet contact.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Strength

If a rigid fixation method is used to securely hold the speaker, then holding strength is improved, but vibration transmission increases

Engineering Contradiction:
Improveholding strengthVSAvoidvibration transmission
Core Design Contradiction:
StrengthVSObject-affected harmful factors

Solution Approach 1:

The retainers are made of elastic material with specific hardness parameters that allow them to deform under compression. This parameter change from rigid to elastic provides both holding strength (through friction and normal force) and vibration isolation (through damping). The elastic property enables the retainers to maintain secure contact while absorbing vibration energy.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The vibration isolator uses composite construction with the receiver ring and retainers made of different materials optimized for their specific functions. The retainers use elastic material for vibration damping, while the receiver ring provides structural support. This composite approach achieves both strong holding and effective vibration isolation simultaneously.

Inventive Principle:
Principle #40Composite materials

3Ease of manufacture

If standard speakers with through-holes are used to reduce cost, then manufacturing cost is improved, but vibration isolation becomes more difficult

Engineering Contradiction:
Improvespeaker costVSAvoidisolation structure complexity
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The receiver ring and retainer structure is designed to be universal and compatible with standard speaker projections that have through-holes for screw attachment. The retainers contact the outer peripheral surface of these standard projections, allowing the use of cost-effective standard speakers. The multi-functional design accommodates both standard and custom speakers without requiring specialized components.

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

Solution Approach 2:

The vibration isolator uses simple, easily manufacturable retainers made of elastic material that can be produced cost-effectively. These retainers are designed as simple compression elements rather than complex mechanical structures, reducing manufacturing cost while maintaining effective vibration isolation performance.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

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 speaker vibration isolator significantly reduces vibration transmission to mounting members while securely holding standard speakers with through-holes for screw attachment, enhancing vibration isolation and allowing for the use of cost-effective standard speakers.

Implementation Method 1

The speaker vibration isolator is made of an elastic material

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

significantly reduces vibration transmission

Methodology Applied
Scientific EffectVibration damping: Damping

Data Source

PatentUS20240323576A1Speaker vibration isolator
Publication Date: 2024.09.26 DENSO CORP
  • US20240323576A1 patent drawing
  • US20240323576A1 patent drawing
  • US20240323576A1 patent drawing

AI summary

A speaker vibration isolator is configured to receive a speaker having a plurality of speaker projections. Each speaker projection radially projects from a speaker main body and has a through-hole configured to receive a screw. The speaker vibration isolator is made of an elastic material and includes: a receiver ring that surrounds an outer peripheral surface of the speaker; and a plurality of retainers that correspond to the plurality of speaker projections, respectively. Each retainer contacts a front surface of the corresponding speaker projection and urges the corresponding speaker projection toward the receiver ring.