Elastic Driver Holder With Sound Paths for Sealed Headset Assembly

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Solution Overview

Problem

Existing headset designs face challenges in modifying the sound path for microphones due to assembly complexity, sealing issues, and instability in the positional relationship between drivers and microphones.

Innovation Solution

A driver holder with a tubular portion and integrated sound paths, formed from an elastic material, is press-fitted into a housing to facilitate sound path modification and ensure sealing, while stabilizing the positional relationship between the driver and microphone.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the sound path for the microphone is formed by the housing, then the housing structure is simple, but it cannot be easily modified when optimization is needed

Engineering Contradiction:
Improvesound path modifiabilityVSAvoidhousing structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The sound path structure is segmented from the housing by introducing a separate driver holder component. The driver holder contains the microphone sound path (second sound path) as an independent element, allowing it to be modified without changing the housing structure. This segmentation enables independent optimization of the sound path while maintaining housing simplicity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The driver holder acts as an intermediary component between the housing and the microphone sound path. By placing the sound path within the driver holder rather than directly in the housing, the patent enables easy modification of the sound path configuration without requiring housing redesign, thus improving adaptability while maintaining structural simplicity.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If multiple parts are assembled to form a housing, then the housing can be manufactured easily, but it is not easy to ensure sealing properties of the sound path

Engineering Contradiction:
Improvesealing propertiesVSAvoidassembly difficulty
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The driver holder integrates multiple functions into a single component: it holds the driver, forms the microphone sound path, and provides sealing for the sound path. By combining these functions in one piece, the patent eliminates the need for multiple separate parts that would require complex assembly, thereby ensuring sealing properties while maintaining ease of manufacture.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The driver holder is made from elastic material, allowing it to be compressed during assembly to fit into the housing. This parameter change (elastic deformation) enables easy assembly while maintaining reliable sealing, as the elastic material can deform to accommodate assembly tolerances and then maintain constant sealing pressure.

Inventive Principle:
Principle #35Parameter changes

3Stability of the object's composition

If multiple parts are assembled to form a housing, then the housing can be manufactured easily, but assembly variations occur due to unstable positional relationship

Engineering Contradiction:
Improvepositional relationship stabilityVSAvoidassembly ease
Core Design Contradiction:
Stability of the object's compositionVSEase of manufacture

Solution Approach 1:

The driver holder combines the driver mounting function and the microphone sound path formation into a single integrated component. This merging ensures that the positional relationship between the driver and microphone sound path is stable and precise, as both are defined by the same component geometry rather than by separate assembled parts.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The elastic material property of the driver holder allows it to deform during assembly and then maintain a stable, repeatable position when assembled. This parameter change enables easy assembly while ensuring consistent positional relationships, reducing assembly variations.

Inventive Principle:
Principle #35Parameter changes

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

Enables easy modification of sound paths without altering the housing design, enhances assembly efficiency, and improves sealing and positional stability, thereby reducing assembly variations.

Implementation Method 1

the driver holder is formed with an elastic material... the tubular portion can be easily press-fitted into the holder insertion portion by elastic deformation thereof

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentUS12413889B2Driver holder, driver module, and headset
Publication Date: 2025.09.09 FOSTER ELECTRIC CO LTD
  • US12413889B2 patent drawing
  • US12413889B2 patent drawing
  • US12413889B2 patent drawing

AI summary

A driver holder is disposed inside a housing. This driver holder has a tubular portion formed in a tubular shape, and a driver is accommodated inside the tubular portion. Further, the tubular portion is press-fitted into a module case arranged inside the housing. Here, an opening at one end side in an axial direction of the tubular portion configures a first sound path that communicates the driver with the exterior of the housing. Further, a groove formed at a surface of the tubular portion configures a second sound path which is communicated with the first sound path and extends to a microphone arranged outside the tubular portion.