Behind-the-ear Hearing Aid Housing with Detachable Receiver
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Solution Overview
Problem
Current hearing assistance devices face issues with sound conductivity and stability, with behind-the-ear models having poor sound conductivity and in-ear models lacking wearable stability due to their detachable receiver units.
Innovation Solution
A hearing assistance device design featuring a housing with an ear hook and contour arcs that conform to the user's ear anatomy, combined with a detachable receiver unit and anti-slip structures, ensures stability and good sound conductivity by securely fitting against the ear and preventing cable resonance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If behind-the-ear form transmits sound with an air duct, then it can be worn firmly in the ear, but its sound conductivity is poor
Solution Approach 1:
The device is divided into two separate units: a behind-the-ear housing containing the audio processing module and a detachable receiver unit that inserts into the ear canal. This segmentation allows the housing to provide stable behind-the-ear support while the receiver unit provides direct sound transmission to the ear canal, resolving the contradiction between wearable stability and sound conductivity.
2Object-generated harmful factors
If receiver in the canal form uses in-ear type receiver, then it has better sound conductivity, but it cannot provide wearable stability
Solution Approach 1:
The device separates the stable behind-the-ear housing from the in-ear receiver unit through a detachable connection. The receiver unit can be inserted into the ear canal for direct sound transmission, while the housing remains behind the ear providing stability, thus resolving the contradiction between sound conductivity and wearable stability.
3Device complexity
If receiver unit is fixed in behind-the-ear form, then it provides structural simplicity, but it cannot be selected or replaced according to user needs
Solution Approach 1:
The receiver unit is designed to be detachable rather than fixed, allowing users to dynamically select and replace different receiver units based on their specific needs. This dynamic design resolves the contradiction between structural simplicity and adaptability by maintaining a simple overall structure while enabling flexible configuration changes.
Data Source
AI summary
A hearing assistance device, including a housing, a receiver, and a cable, is provided. The housing has an ear hook and a first contour arc. The cable faces the ear hook, penetrates the housing, and connects to a receiver.