Hearing Aid Loop Antenna With Releasable Coupling
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Solution Overview
Problem
Existing hearing aids face challenges in achieving consistent wireless performance and ease of use due to variations in antenna mounting caused by precise ear canal location, manufacturing processes, and limited space, leading to unpredictable antenna performance and difficult repair processes.
Innovation Solution
The loop antenna's legs are equipped with releasable coupling parts that engage with corresponding housing parts, allowing for adjustable locking to optimize energy efficiency and handling properties without damaging components, enabling easy selection and replacement of antenna designs based on user needs and wireless standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the loop antenna is glued into the faceplate of the hearing aid housing, then the antenna is fixed in position, but the mounting quality varies due to manufacturing tolerances and operator skills, leading to inconsistent wireless performance
Solution Approach 1:
The antenna system is divided into separate modular components: the loop antenna itself, the coupling parts that interface with the housing, and the locking mechanism. This segmentation allows each component to be manufactured independently with standardized interfaces, eliminating the need for custom gluing operations and ensuring consistent assembly regardless of operator skill level.
Solution Approach 2:
Coupling parts are introduced as intermediary elements between the loop antenna legs and the housing faceplate. These coupling parts feature standardized interfaces that simplify the connection process and ensure consistent mounting quality by acting as mediators that absorb manufacturing tolerances and facilitate precise alignment.
2Stability of the object's composition
If the loop antenna is permanently fixed using glue, then the antenna remains secure, but repair and replacement become difficult due to disassembly challenges
Solution Approach 1:
The antenna mounting system transitions from a static permanent bond (glue) to a dynamic reversible connection using locking parts that can be moved between locked and unlocked positions. This allows the antenna to remain securely fixed during normal use while enabling easy removal and replacement when needed, significantly improving repairability.
Solution Approach 2:
The design enables the loop antenna to be easily removed and replaced without damage to components, allowing for recovery and reuse of the hearing aid housing and other components. The standardized coupling parts ensure that both the antenna and housing can be recovered intact for future use.
3Device complexity
If a single antenna design is used in the hearing aid, then the device structure is simple, but wireless performance cannot be optimized for different ear canal positions and user requirements
Solution Approach 1:
The hearing aid antenna system is designed with universal standardized coupling parts that can interface with different loop antenna designs. This allows a single hearing aid housing to support multiple antenna variants, each optimized for specific wireless standards or performance requirements, while maintaining a simple universal mounting structure.
Solution Approach 2:
The antenna system becomes dynamically configurable, allowing users or technicians to select and install different loop antenna designs based on specific requirements such as wireless standard (Bluetooth, Wi-Fi), ear canal shape, or performance needs. The standardized locking mechanism enables easy switching between different antenna configurations.
Data Source
AI summary
The hearing aid includes an end wall having end face adapted to face outwards of an ear canal when the hearing aid is placed in the ear canal, and the hearing aid includes an antenna extending from the end face and having two legs inserted into the end wall and electrically coupled to wireless circuitry arranged inside the hollow housing. Each leg of the antenna is provided with a first coupling part releasably engaging a corresponding second coupling part of the hollow housing, and at least one locking part is movable between a locking position in which the first coupling parts are locked to the corresponding second coupling parts and a release position in which the first coupling parts are free to be removed from the corresponding second coupling parts.