Wireless Earphone Concha Contact Surface Positioning
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Solution Overview
Problem
Conventional wireless earphones lack secure positioning mechanisms, leading to instability and discomfort during wear, as they can easily rotate within the ear due to the absence of physical connections between the left and right earpieces.
Innovation Solution
The design incorporates a concha contact surface with a sound outlet tube, a convex positioning portion, and a laid slot that aligns with the ear's anatomy, ensuring the earphone body fits securely within the ear's concha, cavum, and crux helix, while the microphone placement and sound outlet tube axis form a specific included angle for improved acoustic performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless earphones lack physical connections or wires between left and right earpieces, then wireless convenience and portability are improved, but wearing stability and positioning accuracy deteriorate
Solution Approach 1:
The earphone body is divided into functionally independent components: a concha contact surface for positioning, a sound outlet tube for audio output, a convex positioning portion for securing in the ear cavity, and a laid slot for engagement with the ear's crux helix. This segmentation allows each component to perform its specific function while collectively achieving stable wireless wearing without physical connections between earpieces
Solution Approach 2:
The positioning mechanism transitions from traditional 2D surface contact to 3D anatomical fitting by utilizing the ear's natural three-dimensional structures (concha, cavum, and crux helix). The convex positioning portion and laid slot create multi-point engagement in three dimensions, significantly improving wearing stability while maintaining wireless convenience
2Volume of moving object
If the earphone body is miniaturized for comfort, then wearing comfort is improved, but the complexity of designing accurate positioning structures increases
Solution Approach 1:
Multiple positioning functions are merged into a single integrated concha contact surface that incorporates the sound outlet tube, convex positioning portion, and laid slot. This unified structure eliminates the need for separate positioning components, reducing overall earphone volume while maintaining accurate positioning capability through the combined anatomical fit of its integrated elements
Solution Approach 2:
The concha contact surface serves multiple functions simultaneously: it provides the primary positioning interface, houses the sound outlet tube for audio output, contains the convex positioning portion for securing in the cavum, and includes the laid slot for engagement with the crux helix. This multi-functionality reduces the number of separate components needed, enabling miniaturization while maintaining positioning accuracy
Data Source
AI summary
A wireless earphone includes an earphone body with a concha contact surface. A sound outlet tube protrudes out from the concha contact surface. A convex positioning portion protrudes out from the concha contact surface. A laid slot is located on the concha contact surface and adjacent to the convex positioning portion. When the earphone body is mounted on a human ear, the concha contact surface is configured to face a concha of the human ear, the sound outlet tube is configured to insert into an auditory canal of the human ear, the convex positioning portion is configured to fit within a cavum of the human ear, and the laid slot is configured to fit within a crux helix of the human ear.