Speaker Module Sidewall Mesh Structure for Thin, Durable Audio

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Solution Overview

Problem

As electronic apparatuses become thinner, the durability of speaker modules is weakened, leading to potential separation of components and introduction of foreign substances, which degrades sound quality.

Innovation Solution

A speaker module design featuring a mesh cover made of flexible air-permeating material attached to the yoke plate's bent portion, preventing foreign substance ingress while allowing sound transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the thickness of the speaker module is decreased to make electronic apparatuses thinner, then the compactness and portability are improved, but the durability and structural strength are weakened

Engineering Contradiction:

Improvethickness of speaker moduleVSAvoiddurability of speaker module

Core Design Contradiction:

Volume of moving objectVSStrength

Solution Approach 1:

The patent uses a composite structure combining rigid components (frame, yoke plate, magnet) with flexible materials (mesh cover, bent portion). This composite approach allows the overall module to maintain thin dimensions while the flexible components provide shock absorption and structural resilience, resolving the contradiction between thinness and durability.

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

The mesh cover and bent portion are designed as pre-installed protective elements that cushion against external shocks before they can damage internal components. This beforehand cushioning allows the speaker module to be thin while maintaining durability through proactive protection mechanisms.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

2Volume of moving object

If the speaker module is made thinner with reduced structural components, then the compactness is improved, but the resistance to external shock is weakened

Engineering Contradiction:

Improvethickness of speaker moduleVSAvoidresistance to external shock

Core Design Contradiction:

Volume of moving objectVSReliability

Solution Approach 1:

The mesh cover and bent portion function as flexible protective shells that can deform under external shock and return to their original shape. This flexibility allows the thin speaker module to withstand shocks that would otherwise damage rigid internal components, maintaining reliability despite reduced thickness.

Inventive Principle:

Principle #30Flexible shells and thin films

Solution Approach 2:

The mesh cover acts as an intermediary protective layer between external shock sources and internal speaker components. It absorbs and distributes impact forces, protecting the voice coil, magnet, and vibration plate from direct shock damage while allowing the module to remain thin.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Reliability

If protective structures are added to prevent foreign substance ingress, then the durability is improved, but the sound transmission quality may be degraded

Engineering Contradiction:

Improvedurability of speaker moduleVSAvoidsound quality degradation

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The mesh cover is designed with a porous or perforated structure that allows sound waves to pass through while blocking foreign substances. This porous design resolves the contradiction by providing protection against debris ingress while maintaining acoustic transparency for high-quality sound transmission.

Inventive Principle:

Principle #31Porous materials

Solution Approach 2:

The mesh cover serves as an intermediary structure that selectively filters between sound waves and foreign substances. It allows beneficial sound transmission while blocking harmful debris, protecting internal components without degrading audio quality.

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

Enhances durability and maintains sound quality by blocking foreign substances while allowing sound to pass through, thus improving the overall performance of the speaker module.

Implementation Method 1

a mesh cover of which first end portion is fixed between the bent portion of the yoke plate and the frame, and of which second end portion is attached to the upper surface of the yoke plate so as to cover the at least one opening on the inner side of the bent portion

Methodology Applied

Scientific EffectPhysical barrier:

Implementation Method 2

The mesh cover may include an air permeating material having flexibility

Methodology Applied

Scientific EffectAir permeation: Permeation

Implementation Method 3

The mesh cover may include an air permeating material having flexibility

Methodology Applied

Scientific EffectFlexibility: Elasticity

Data Source

PatentUS20250392850A1Speaker module having sidewall opening and electronic apparatus including the same

Publication Date: 2025.12.25 SAMSUNG ELECTRONICS CO LTD

AI summary

An electronic apparatus includes a housing, and a speaker module inside the housing. The speaker module includes a speaker module housing including a frame and a yoke plate which is coupled to the frame, the yoke plate including a base plate, and a sidewall which protrudes from the base plate, overlaps an end of the frame and includes an opening defined therein, a speaker which is in the speaker module housing and produces a sound, and a mesh cover which is air permeable and covers the opening defined in the sidewall of the yoke plate. At the end of the frame, the mesh cover is attached to the yoke plate at an upper surface of the sidewall, at an inner surface of the sidewall, and at an upper surface of the base plate.