Hearing Aid Receiver Filter Holder Integration
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Solution Overview
Problem
Hearing aids, particularly ITE models, face challenges in minimizing the volume of the receiver and filter socket while maintaining optimal sound quality and performance, requiring compact arrangement of components in limited spaces.
Innovation Solution
The filter holder is fastened to the receiver housing with its substantially plane bottom plate abutting the side face, creating a short sound channel, and can be attached via gluing, soldering, or welding, with the direction of filter detachment arranged obliquely to the primary sound outlet direction, allowing for reduced hearing aid length and versatile integration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the receiver and filter socket are made compact to reduce hearing aid size, then the hearing aid becomes more discrete, but the sound quality and performance may deteriorate
Solution Approach 1:
The filter holder is merged with the receiver housing by fastening the bottom plate to the side face, creating an integrated assembly that reduces overall volume while maintaining the acoustic performance of both components
Solution Approach 2:
The sound channel is aligned with the sound opening in a straight-line configuration, optimizing the acoustic path length within the compact volume and maintaining sound quality despite reduced space
2Length of stationary object
If the sound channel is made short to reduce hearing aid length, then the hearing aid becomes more compact, but the sound transmission may be affected
Solution Approach 1:
The sound channel is positioned to align directly with the sound opening, creating an optimized acoustic path that maintains effective sound transmission while minimizing the length required
3Volume of moving object
If the filter holder is fastened to the receiver housing to reduce space, then the receiver volume is reduced, but the manufacturing complexity increases
Solution Approach 1:
The filter holder and receiver housing are combined into a single fastened assembly, reducing the number of separate components and simplifying the overall manufacturing process despite the added fastening step
Data Source
AI summary
A receiver for a hearing aid includes: a receiver housing having a side face with a sound opening; and a filter holder with a filter, wherein the filter holder is fastened to the receiver housing; wherein the filter holder has a bottom face, a first opening at the bottom face, a second opening configured for releasably mounting the filter to the filter holder, and a sound channel located between the first and second openings and aligned with the first opening; and wherein the bottom face of the filter holder abuts the side face of the receiver housing.