Open Earphone Ear Hook Structure for Stable Fit and Low Sound Leakage
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Solution Overview
Problem
Existing acoustic output devices, such as earphones, face challenges in improving output performance and wearing experience, particularly in terms of comfort and stability, especially for open earphones that do not block the ear canal.
Innovation Solution
The design of an open earphone with a sound producer and an ear hook that forms specific projections on planes, ensuring the ear canal remains unblocked, and includes a suspension structure that fits the user's ear shape, providing stability and comfort through clamping and extension into ear cavities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the ear canal is blocked to improve sound isolation and listening volume, then sound quality is improved, but comfort and natural hearing are reduced
Solution Approach 1:
The patent extracts the sound isolation function from the ear canal blockage itself and relocates it to a dedicated noise isolation component positioned at the ear canal opening. This component creates a localized acoustic barrier without blocking the entire ear canal, allowing sound isolation benefits while maintaining comfort and natural hearing.
Solution Approach 2:
The earphone structure is segmented into distinct functional components: a sound producer for audio output, a separate noise isolation component for sound barrier, and an ear hook for positioning. This segmentation allows each component to perform its specific function optimally without interfering with others, resolving the contradiction between sound isolation and comfort.
2Stability of the object's composition
If the earphone structure is extended to improve stability and fit, then wearing stability is improved, but comfort and ease of wear are reduced
Solution Approach 1:
The ear hook is designed with flexible material that can dynamically adapt to different ear shapes and sizes. The flexibility allows the earphone to achieve stable positioning through elastic engagement rather than rigid extension, improving both wearing stability and comfort across various user anatomies.
Solution Approach 2:
The patent optimizes the geometric parameters of the ear hook, including its curvature radius and cross-sectional dimensions, to match average ear anatomy. By carefully controlling these parameters, the ear hook achieves stable positioning without excessive extension or rigidity, resolving the contradiction between stability and comfort.
3Stability of the object's composition
If the projection area of the earphone is increased to improve stability, then wearing stability is improved, but far-field sound leakage increases
Solution Approach 1:
The noise isolation component acts as an intermediary element between the sound producer and the external environment. It creates a localized acoustic barrier at the ear canal opening, effectively blocking far-field sound leakage without requiring an increased overall projection area of the earphone structure.
Solution Approach 2:
Instead of increasing the overall projection area of the earphone, the patent concentrates the sound isolation function in a localized region at the ear canal opening through the noise isolation component. This localized approach prevents far-field sound leakage without affecting the overall compactness and stability of the earphone structure.
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
Enhances sound quality by increasing listening volume and reducing far-field sound leakage while maintaining comfort and stability during use, adapting to individual ear shapes and sizes.
Implementation Method 1
a sound producer including a transducer and a housing accommodating the transducer
Data Source
AI summary
The present disclosure provides an open earphone comprising: a sound producer including a transducer and a housing accommodating the transducer; and an ear hook, the ear hook including a first portion and a second portion; wherein the ear hook and the sound producer form a first projection on a first plane, the first projection including an outer contour, a first end contour, an inner contour and a second end contour, and the outer contour, the first end contour, the second end contour and a tangent segment connecting the first end contour and the second end contour jointly define a first closed curve.