Deformable Earcap Structure with Fluid Cavity for Concha Adaptation
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Solution Overview
Problem
Current earphones with fixed shapes fail to accommodate varying ear shapes, leading to poor fit, comfort issues, and a high likelihood of falling off, especially for individuals with unique concha cavities.
Innovation Solution
An earcap structure with a deformable cavity filled with a fluid filler, such as gel or gas, that adapts to the shape of the concha cavity, ensuring a snug and comfortable fit by deforming to match different ear shapes, and a limiting structure for secure attachment to the in-ear body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a fixed shape earphone is used, then the manufacturing precision is improved, but the adaptability to different ear shapes deteriorates
Solution Approach 1:
The earcap incorporates a deformable cavity filled with fluid filler that allows the earcap structure to dynamically adapt its shape when subjected to external pressure from the concha cavity, transforming from a fixed rigid structure to a dynamic adaptable one
Solution Approach 2:
The cavity within the earcap is designed with variable volume capability through fluid filler, allowing the physical parameters of the earcap to change in response to external forces, enabling shape adaptation while maintaining manufacturing precision
2Adaptability or versatility
If a deformable earcap structure is used, then the adaptability to different ear shapes is improved, but the structural complexity increases
Solution Approach 1:
The earcap utilizes a flexible cavity structure filled with fluid filler that can deform under external pressure, achieving adaptability through material flexibility rather than complex mechanical components
Solution Approach 2:
The deformable cavity is filled with fluid filler (gas or liquid) that transmits external pressure uniformly, allowing the earcap to conform to different ear shapes through fluid pressure distribution rather than complex mechanical adjustment mechanisms
3Ease of operation
If the cavity is filled with fluid filler, then the comfort and sealing are improved, but the manufacturing process complexity increases
Solution Approach 1:
The cavity is pre-filled with fluid filler during the manufacturing process before the earcap is assembled to the earphone, ensuring the deformable structure is ready for immediate use and providing consistent comfort and sealing performance
Solution Approach 2:
The earcap combines the rigid outer shell with the deformable fluid-filled cavity, creating a composite structure that integrates both structural support and adaptive comfort features in a single manufacturing process
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 earcap structure improves the sealing and firmness of the earphone fit, enhancing comfort and compatibility with a wider range of human ears by allowing the earcap to deform and conform to individual ear shapes.
Implementation Method 1
the cavity is filled with a fluid filler to make the cavity squeezed and deformed in response to that an outside of the earcap body is in contact with a concha cavity
Data Source
AI summary
Disclosed are an earcap structure and an earphone. The earcap structure includes an earcap body provided with an installation channel, the installation channel is sleeved on an outside of an in-ear body of an earphone, a cavity is provided in a wall of the installation channel, and the cavity is filled with a fluid filler to make the cavity squeezed and deformed in response to that an outside of the earcap body is in contact with a concha cavity.