Earphone Core Module Structure for Stable Sound Transmission

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Solution Overview

Problem

Existing earphone structures lack structural stability, which affects their quality and performance.

Innovation Solution

The earphone design includes a wearing assembly and a core module with a core housing and a cover plate, featuring a chamber structure, a core bracket with an annular bracket body and limiting structure, and a press structure to secure the core module on the user's head, enhancing stability and sound transmission through bone or air conduction techniques.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a simple earphone structure is used, then device complexity is reduced, but structural stability deteriorates

Engineering Contradiction:
Improvestructure complexityVSAvoidstructural stability
Core Design Contradiction:
Device complexityVSStability of the object's composition

Solution Approach 1:

The earphone is divided into distinct functional modules: a core module containing the core and housing, and a separate wearing assembly. This segmentation allows each module to be optimized independently while ensuring overall structural stability through standardized connection interfaces.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The press structure is pre-configured within the core module to automatically press and fix the core bracket in place during assembly. This preliminary fixing action ensures structural stability is established during manufacturing and maintained during use, eliminating the need for complex post-assembly adjustments.

Inventive Principle:
Principle #10Preliminary action

2Stability of the object's composition

If the core module is securely fixed, then structural stability is improved, but device complexity increases

Engineering Contradiction:
Improvestructural stabilityVSAvoidstructure complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The press structure integrates multiple functions into a single component: it provides structural support, secures the core bracket in place, and maintains the chamber structure's integrity. By merging these functions, the design achieves secure fixing without proportionally increasing complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The press structure is designed to self-fix the core bracket through its pressing action, eliminating the need for additional fastening mechanisms or complex assembly steps. The structure serves its own purpose of securing components through its inherent design features.

Inventive Principle:
Principle #25Self-service

3Reliability

If the chamber structure is well-formed, then sound transmission quality is improved, but manufacturing precision requirements increase

Engineering Contradiction:
Improvesound transmission qualityVSAvoidchamber structure precision
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The chamber structure is pre-formed during the manufacturing of the core module, with the press structure configured to maintain the chamber's integrity during assembly. This preliminary formation ensures the chamber is already precision-formed before final assembly, reducing the precision requirements for subsequent manufacturing steps.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The press structure acts as an intermediary element that maintains the chamber structure's precision during assembly. It provides a stable reference framework that ensures the core bracket and other components are positioned accurately within the chamber without requiring extremely tight tolerances on all components.

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 design provides improved structural stability and sound transmission, allowing for clear sound perception and reduced sound leakage, while accommodating various wearing configurations and enhancing user comfort.

Implementation Method 1

enhancing stability and sound transmission through bone or air conduction techniques

Methodology Applied
Scientific EffectBone conduction:

Implementation Method 2

enhancing stability and sound transmission through bone or air conduction techniques

Methodology Applied
Scientific EffectAir conduction:

Data Source

PatentUS20250254459A1earphones
Publication Date: 2025.08.07 SHENZHEN SHOKZ CO LTD
  • US20250254459A1 patent drawing
  • US20250254459A1 patent drawing
  • US20250254459A1 patent drawing

AI summary

The present disclosure discloses an earphone. The earphone may include a wearing assembly and a core module. The core module may be disposed on one end of the wearing assembly. The wearing assembly may be configured to fix the core module on a head of a user. The core module may include a core housing, a core, and a cover plate. An opening may be disposed on one end of the core housing, and the cover plate may be covered on the opening of the core housing, so as to form a chamber structure inside the core housing for accommodating the core.