Interchangeable Faceplate Twist-Lock for In-Ear Audio

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Solution Overview

Problem

Conventional in-ear audio devices lack customization options for aesthetic style and physical activity compatibility, often requiring fixed attachments that can be damaged during use, compromising comfort and sound quality.

Innovation Solution

An in-ear audio device design featuring a driver module within an enclosure with a mounting region and a device engagement mechanism, allowing for interchangeable faceplates using a twist-lock mechanism that ensures secure attachment without sacrificing comfort or sound quality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional external components are affixed to the main functional elements of an in-ear audio device to alter the external shell, then aesthetic customization is improved, but the components are easily damaged during normal use due to the small size of in-ear audio devices

Engineering Contradiction:

Improveaesthetic customizationVSAvoidcomponent durability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The in-ear audio device is divided into a main body and a separate interchangeable faceplate. The faceplate can be detached and replaced without damaging the main functional elements, allowing aesthetic customization while protecting the core components from damage during normal use.

Inventive Principle:

Principle #1Segmentation

2Adaptability or versatility

If additional external components are affixed to the in-ear audio device to meet different physical activities, then functional adaptability is improved, but the components require fixed attachment which can be damaged during use

Engineering Contradiction:

Improvefunctional adaptabilityVSAvoidattachment mechanism complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The faceplate attachment mechanism transitions from a fixed, permanent attachment to a dynamic, interchangeable system. The faceplate can be quickly attached and detached based on different physical activities or aesthetic preferences, providing functional adaptability without requiring complex fixed attachment mechanisms.

Inventive Principle:

Principle #15Dynamics

3Ease of operation

If interchangeable faceplates are implemented without a proper engagement mechanism, then customization ease is improved, but the faceplates may become loose or detach during use

Engineering Contradiction:

Improvecustomization easeVSAvoidfaceplate retention

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent replaces complex mechanical fastening systems with a simplified engagement mechanism featuring engagement protrusions and corresponding recesses. This allows faceplates to be easily attached and detached by simple insertion and rotation motions, providing both customization ease and reliable retention without complex mechanics.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS11425479B2In-ear audio device with interchangeable faceplate

Publication Date: 2022.08.23 LOGITECH EUROPE SA

AI summary

An in-ear audio device includes a driver module disposed within an in-ear enclosure, and a mounting region of the in-ear enclosure including a device engagement mechanism comprising an engagement feature that is formed on a surface of the in-ear enclosure. The driver module is configured to deliver audible output provided from the driver module to an output end of the in-ear enclosure. At least a portion of the engagement feature is configured to engage with a mating engagement feature of an interchangeable faceplate to cause the interchangeable faceplate to be coupled to the engagement feature.