Microphone-Hidden Speaker Structure with Recessed Detachable Cover

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Solution Overview

Problem

Current speakers with microphones have poor aesthetics due to exposed microphone accommodating cavities lacking decorative cover plates, and the microphones are accessible to children, posing a risk of damage or misuse.

Innovation Solution

A microphone-hidden speaker structure with an inwardly extending cavity and a detachable decorative cover plate made of soft or hard material, secured via snap-fitting or magnetic attraction, which covers the microphone cavity to enhance aesthetics and prevent access.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the microphone accommodating cavity is formed on the housing surface without a decorative cover plate, then the microphone is easily accessible for children to take out or damage, but the overall flatness and aesthetics of the speaker are poor

Engineering Contradiction:
Improvemicrophone protectionVSAvoidoverall flatness
Core Design Contradiction:
ReliabilityVSShape

Solution Approach 1:

The decorative cover plate is embedded into the microphone accommodating cavity, creating a nested structure where the cover plate fits within the cavity opening. This nesting approach maintains the overall flatness of the speaker housing while providing a protective layer over the microphone, resolving the contradiction between protection and aesthetics.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The microphone accommodating cavity extends inwards from the housing surface with a certain depth, transitioning the microphone placement from a surface-level exposed position to a recessed three-dimensional space. This dimensional change allows the decorative cover plate to flush with the housing surface while the microphone remains protected inside the cavity.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Strength

If the decorative cover plate is made of hard material, then the structure is durable, but resonance between the cover plate and housing increases when audio plays

Engineering Contradiction:
Improvecover plate durabilityVSAvoidresonance noise
Core Design Contradiction:
StrengthVSObject-generated harmful factors

Solution Approach 1:

The decorative cover plate is made of soft material with certain elasticity instead of hard material. This flexible property allows the cover plate to absorb vibrations and reduce resonance noise when audio plays, while still maintaining durability through the elastic material properties.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The solution employs composite material strategy by using soft elastic material for the decorative cover plate, combining the benefits of durability with vibration damping properties. The soft material acts as a vibration isolator between the housing and the external environment, reducing resonance while maintaining structural integrity.

Inventive Principle:
Principle #40Composite materials

3Ease of operation

If the decorative cover plate is detachably connected to the housing, then users can easily store or retrieve the microphone, but the connection structure becomes more complex

Engineering Contradiction:
Improvemicrophone accessibilityVSAvoidconnection structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The connection between the decorative cover plate and housing is achieved through magnetic attraction between magnetic pieces embedded in both components, replacing complex mechanical fastening systems. This magnetic connection provides easy detachability for microphone access while maintaining a simple and clean structural design.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The magnetic connection system allows the decorative cover plate to be easily attached and detached by users without requiring tools or complex manipulation. The magnetic attraction automatically holds the plate in place during normal use, while allowing simple separation when needed, making the system self-servicing and user-friendly.

Inventive Principle:
Principle #25Self-service

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 structure improves aesthetics, reduces noise, and ensures easy access to the microphone while preventing damage by covering the microphone cavity with a decorative cover plate that minimizes resonance and is easily removable.

Implementation Method 1

the rubber pads on the side edge of the annular snap-fitting stand are squeezed and deformed to contact with the inner side wall of the microphone accommodating cavity

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 2

the decorative cover plate is provided with a second magnetic attraction piece, the first magnetic attraction piece and the second magnetic attraction piece are opposite each other, and the decorative cover plate is fixed on the housing through the first magnetic attraction piece and the second magnetic attraction piece

Methodology Applied
Scientific EffectMagnetic attraction: Magnetism

Data Source

PatentEP4580210A1Microphone-hidden speaker structure
Publication Date: 2025.07.02 KUO SU
  • EP4580210A1 patent drawingFigure 1
  • EP4580210A1 patent drawingFigure 2
  • EP4580210A1 patent drawingFigure 3

AI summary

Disclosed is a microphone-hidden speaker structure, including a housing, a microphone accommodating cavity that extends inwards and has a certain depth is formed on the housing, and a recess is formed on one end of the microphone accommodating cavity; the speaker main body further includes a decorative cover plate, and the decorative cover plate is made of soft material with a certain elasticity or hard material; and the decorative cover plate is embedded above the microphone accommodating cavity, and the decorative cover plate is detachably connected to the housing.