Open Earphones with Controlled Auricle Clamping for Stable Wear
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Solution Overview
Problem
Existing open earphones often compromise wearing comfort and stability while maintaining output performance, leading to suboptimal user experience.
Innovation Solution
An open earphone design featuring a sound production component and an ear hook that clamps the auricle with a force of 0.03 N to 1 N, allowing the sound production component to be positioned near the ear canal without blocking it, and incorporating a quasi-cavity structure to enhance sound intensity and reduce far-field sound leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the sound production component is positioned near the ear canal to ensure output performance, then acoustic performance is improved, but wearing comfort deteriorates due to potential blocking and pressure
Solution Approach 1:
The earphone is divided into separate functional components: the sound production component is positioned near the ear canal without blocking it, while the ear hook provides separate clamping support on the auricle. This segmentation allows acoustic performance to be maintained while eliminating the blocking effect that causes discomfort.
Solution Approach 2:
The ear hook acts as an intermediary element that provides structural support and positioning without directly interfering with the ear canal. It clamps the auricle to hold the sound production component in the correct position while allowing the canal to remain open, thus mediating between positioning requirements and comfort.
2Stability of the object's composition
If the ear hook clamps the auricle with sufficient force to ensure wearing stability, then stability is improved, but wearing comfort deteriorates due to excessive pressure
Solution Approach 1:
The clamping force parameter is precisely controlled within the range of 0.03 N to 1 N. This parameter optimization ensures that the ear hook provides enough force to maintain stable wearing while avoiding excessive pressure that would cause discomfort or pain to the user.
3Power
If the sound production component is positioned close to the ear canal to enhance sound intensity, then acoustic performance is improved, but sound leakage to far-field increases
Solution Approach 1:
The harmful effect of sound leakage is extracted and addressed separately from the sound production function. The ear hook structure and clamping mechanism are designed to contain sound directionally, extracting the leakage problem from the main acoustic path and managing it through structural design rather than compromising the close positioning needed for sound intensity.
Data Source
AI summary
The present disclosure provides an open earphone comprising: a sound production component including a transducer and a housing accommodating the transducer; and an ear hook including a first portion of the ear hook and a second portion of the ear hook. The first portion of the ear hook is hung between an auricle and a head of a user, and the second portion of the ear hook extends towards a side of the auricle away from the head and connects with the sound production component to place the sound production component in a position near an ear canal but not blocking the ear canal, the housing and the first portion of the ear hook clamp the auricle of the user, and provide a clamping force in a range of 0.03 N to 1 N to the auricle of the user.