Rotatable Earphone Handle Structure for Adaptive Wearing Comfort

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Solution Overview

Problem

Existing earphones have fixed sizes and shapes, leading to varying comfort levels and usability among different users due to differences in ear size and shape.

Innovation Solution

An earphone design featuring a rotatable earphone handle connected to an earbud structure, allowing adjustment of the wearing posture through a rotating portion and groove mechanism, with optional magnetic and elastic connections for stability and detachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the earphone handle is fixed to the earbud structure, then the structural stability is improved, but the adaptability to different users is worsened

Engineering Contradiction:

Improvestructural stabilityVSAvoidadaptability to different users

Core Design Contradiction:

Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The earphone handle is made rotatable relative to the earbud structure through a rotating portion and rotating groove mechanism, transforming the fixed connection into a dynamic adjustable one. This allows users to rotate the handle to different angles (0°≤θ1≤45°) to suit their ear shape and wearing preferences, resolving the contradiction between structural stability and adaptability to different users.

Inventive Principle:

Principle #15Dynamics

2Adaptability or versatility

If the earphone handle is made rotatable, then the adaptability to different users is improved, but the device complexity is worsened

Engineering Contradiction:

Improveadaptability to different usersVSAvoiddevice complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The connection between the earphone handle and earbud structure is segmented into separate functional components: a rotating portion on one component and a rotating groove on the other. This segmentation allows the rotatable function to be achieved through simple geometric shapes rather than complex mechanical mechanisms, reducing device complexity while maintaining adaptability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The rotating portion and rotating groove utilize spherical or arc-shaped geometries to enable rotation. This curved surface approach simplifies the mechanical design compared to traditional hinge or joint mechanisms, achieving the desired adaptability with minimal structural complexity.

Inventive Principle:

Principle #14Spheroidality (Curvature)

3Ease of operation

If the rotating portion uses spherical geometry, then the ease of operation is improved, but the manufacturing precision requirements are worsened

Engineering Contradiction:

Improveease of rotationVSAvoidspherical geometry precision

Core Design Contradiction:

Ease of operationVSManufacturing precision

Solution Approach 1:

The patent specifies a controlled rotation angle range (0°≤θ1≤45°) rather than requiring precise spherical geometry throughout the entire 360°. This parameter limitation allows for simpler manufacturing while still providing sufficient rotational adjustment for different users, reducing the precision requirements compared to full spherical accuracy.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS12574674B2Earphone

Publication Date: 2026.03.10 GEER TECH CO LTD

AI summary

Disclosed is an earphone, including an earbud structure and an earphone handle; the earphone handle is rotatably connected to the earbud structure to adjust a wearing posture of the earphone handle. The main objective of the present application is to provide an earphone that can adjust the wearing posture of the earphone handle, thereby improving the user's wearing comfort.