Headphone Ear Pad Segmentation for Auricle Engagement
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Solution Overview
Problem
Conventional inner-ear type headphones without earpieces inserted into the auditory canal are prone to detachment due to lack of engagement with the auricle, leading to discomfort and instability during use.
Innovation Solution
The design incorporates a flexible ear pad with a protruding member and an arc-like member on the housing, providing a secure fit by engaging with the auricle's shape, and a circumferential protruding section that enhances the attachment mechanism, ensuring the headphones remain firmly in place.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If elastic ear pads are used to improve comfort, then comfort is improved, but firmness of attachment deteriorates
Solution Approach 1:
The ear pad is divided into multiple functional sections: a protruding member with a first top section and first bottom section, and an arc-like member with a second top section and second bottom section. This segmentation allows different parts to perform different functions - the protruding member provides engagement with the auricle while the arc-like member maintains flexibility and comfort.
Solution Approach 2:
The invention adds a radial dimension to the ear pad structure by creating protrusions that extend outward from the housing in specific radial directions. This dimensional change enables the ear pad to engage with the auricle's three-dimensional shape, transforming a two-dimensional contact surface into a multi-dimensional engagement structure.
2Ease of operation
If no earpieces are inserted into the auditory canal, then ease of use is improved, but stability deteriorates
Solution Approach 1:
The arc-like member is designed with a curved shape that matches the curvature of the auricle. This spherical/curved geometry allows the ear pad to conform to the natural shape of the ear, providing stable attachment without requiring rigid canal-inserted earpieces. The curved surface distributes contact pressure evenly across the auricle.
Solution Approach 2:
The ear pad is constructed as a flexible component that can deform to match the unique shape of each user's auricle. This flexibility allows the ear pad to create a custom fit that is both comfortable and stable, eliminating the need for rigid canal plugs while maintaining attachment reliability.
3Ease of manufacture
If a simple housing shape is used, then manufacturing is improved, but adaptability to different ear shapes deteriorates
Solution Approach 1:
Instead of making the entire housing complex, the invention adds localized protruding members and arc-like members at specific positions on the housing surface. These local features provide the necessary adaptability to different ear shapes while keeping the overall housing design simple and easy to manufacture using standard molding techniques.
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 solution provides a comfortable and secure fit for headphones, preventing detachment even with external forces, accommodating varying ear shapes and sizes, while maintaining excellent acoustic characteristics.
Implementation Method 1
a flexible ear pad with a protruding member and an arc-like member on the housing, providing a secure fit by engaging with the auricle's shape
Data Source
AI summary
A headphone set has a housing to contain a speaker unit, with a sound emitting surface through which sounds given off by the speaker unit are emitted out, and an ear pad attached to the housing to surround the sound emitting surface. The ear pad has a protruding member and an arc-like member sticking out in opposite directions. The degree of sticking out for the arc-like member is smaller than the degree of sticking out for the protruding member. The protruding member has an inner space interposed between a top section and an opposing bottom section closer than the top section to the sound emitting section. The arc-like member has a top section and an opposing bottom section closer than the top section to the sound emitting surface. The top section of the protruding member is positioned farther than that of the arc-like member from the sound emitting surface.