Wireless Earphone In-Ear Sensor Placement for Detection Accuracy
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Solution Overview
Problem
Conventional wireless earphones have an unreasonable spatial position for wearing detection devices, leading to inadequate detection accuracy and space occupation, affecting sound quality and convenience.
Innovation Solution
The wireless earphone design includes a wearing detection sensor, sound venting hole, and contact group on the in-ear portion's wearing surface, with an acceleration sensor and capacitive touch panel, optimizing the spatial layout for improved detection accuracy and sound quality, and facilitating charging and communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the wearing detection device is disposed in conventional positions, then the main board space is occupied, but the detection accuracy is insufficient
Solution Approach 1:
The wearing detection sensor is relocated from the conventional interior position to the wearing surface (front surface) of the in-ear portion. This spatial relocation allows the sensor to directly contact the skin of the human body, thereby improving detection accuracy without occupying main board space.
2Measurement precision
If the wearing detection sensor directly contacts skin, then detection accuracy is improved, but the spatial arrangement becomes more constrained
Solution Approach 1:
The wearing surface is designed with specific local characteristics (flat area) to accommodate the wearing detection sensor, sound venting hole, and contact group. This localized design optimizes the spatial arrangement for direct skin contact while maintaining ease of assembly and alignment.
3Measurement precision
If multiple components are arranged on the wearing surface, then detection accuracy and sound quality are improved, but the manufacturing complexity increases
Solution Approach 1:
The wearing detection sensor, sound venting hole, and contact group are integrated and arranged on the same wearing surface. This merging of multiple components into a single functional area simplifies the overall assembly process and manufacturing, as they can be positioned and aligned together during a single assembly operation.
Data Source
AI summary
A wireless earphone comprising an in-ear portion which is in contact with a human ear when the wireless earphone is worn. The in-ear portion comprises a wearing surface which couples the human ear canal when the wireless earphone is worn. The in-ear portion is provided with a wearing detection sensor, a sound venting hole and a contact group which are all disposed on the wearing surface. The wearing detection sensor, the sound venting hole and the contact group are all disposed on the wearing surface of the in-ear portion coupling the human ear canal, so that the wearing detection sensor can directly contact the skin of the human body when the earphone is worn, and thus the wearing detection sensor is improved.