Built-in Speaker Module Vibration Absorption

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Solution Overview

Problem

Built-in speakers in electronic devices often cause vibration transmission to the housing, requiring separate vibration absorbing members to minimize sound loss and maintain device durability, which complicates assembly and increases production costs.

Innovation Solution

A built-in speaker module with a first and second vibration absorbing member, where the first member is interposed between the speaker and the second bottom surface, and the second member is interposed between the first and second bottom surfaces, guiding sound through openings in the first bottom surface and second bottom surface, with the second member having a greater thickness to effectively absorb vibrations and guide sound emission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a separate vibration absorbing member is used to attenuate vibration transmitted to the housing, then vibration transmission is reduced, but device complexity and assembly complexity increase

Engineering Contradiction:

Improvevibration transmissionVSAvoidassembly complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent combines multiple vibration absorbing members into a single integrated component. The first vibration absorbing member is positioned between the speaker and the second bottom surface, while the second vibration absorbing member is positioned between the first bottom surface and the second bottom surface, creating a unified vibration absorption system that reduces assembly complexity while maintaining effective vibration attenuation.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The vibration absorbing members serve multiple functions simultaneously: they attenuate vibrations transmitted from the speaker to the housing, provides structural support, and maintain the spacing between the speaker and housing surfaces. This multi-functionality reduces the need for separate components.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Object-affected harmful factors

If a separate vibration absorbing member is used to attenuate vibration transmitted to the housing, then vibration transmission is reduced, but manufacturing cost increases

Engineering Contradiction:

Improvevibration transmissionVSAvoidmanufacturing cost

Core Design Contradiction:

Object-affected harmful factorsVSEase of manufacture

Solution Approach 1:

The patent integrates multiple vibration absorption functions into a consolidated structural design. By positioning the first vibration absorbing member between the speaker and second bottom surface, and the second vibration absorbing member between the first bottom surface and second bottom surface, the design reduces the number of separate parts that need to be manufactured and assembled, thereby lowering production costs.

Inventive Principle:

Principle #5Merging (Combining)

3Ease of operation

If the speaker is installed in contact with the housing, then assembly is simplified, but vibration is transmitted to the housing

Engineering Contradiction:

Improveassembly simplicityVSAvoidvibration transmission

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent introduces vibration absorbing members as intermediary elements between the speaker and the housing surfaces. The first vibration absorbing member is interposed between the speaker and the second bottom surface, and the second vibration absorbing member is interposed between the first bottom surface and the second bottom surface, effectively mediating the connection to prevent vibration transmission while maintaining a simplified assembly structure.

Inventive Principle:

Principle #24Intermediary (Mediator)

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 vibration transmission to the electronic device housing, simplifies the manufacturing process, and minimizes sound loss while maintaining device durability by using a composite function with a single member.

Implementation Method 1

a first vibration absorbing member interposed between the speaker and the second bottom surface, and a second vibration absorbing member interposed between the first bottom surface and the second bottom surface

Methodology Applied

Scientific EffectVibration absorption: Damping

Data Source

PatentUS11218799B2Built-in speaker module

Publication Date: 2022.01.04 CERAGEM CO LTD

AI summary

Provided herein is a built-in speaker module. The built-in speaker module is installed in a housing of an electronic device having a first bottom surface spaced apart from a ground and a second bottom surface installed above the first bottom surface, and includes a speaker installed above the second bottom surface, a first vibration absorbing member interposed between the speaker and the second bottom surface, and a second vibration absorbing member interposed between the first bottom surface and the second bottom surface, wherein sound is emitted from the speaker through openings formed in the first bottom surface and the second bottom surface.