Flexible Battery Connector for Hearing Aid Impact Decoupling
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Solution Overview
Problem
Existing connecting devices in hearing aids, which use metallic arms for attaching battery units to electronic components, suffer from hard-coupling issues that can lead to damage during motion or external impacts, necessitating a solution for a reliable yet flexible attachment that reduces the risk of damage.
Innovation Solution
A connecting device with detachable connections via welding and soldering units, allowing for a flexible and reliable physical and electrical connection between the battery unit, housing, and electronic components, utilizing flexible printed circuit boards to absorb displacement and prevent hard-coupling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If metallic arms are used to attach battery unit to electronic component, then reliable attachment function is provided, but hard-coupling effect causes damage risk during severe motion or external impact
Solution Approach 1:
The connecting device is divided into multiple detachable connection units (welding units and soldering units) that can be selectively connected or disconnected. This segmentation allows the system to maintain reliable electrical connections while enabling detachment to prevent hard-coupling damage during severe motion or impact events.
Solution Approach 2:
The connecting device transitions from a static rigid metallic arm structure to a dynamic system with detachable connections. The ability to selectively connect or disconnect the welding and soldering units provides dynamic adaptability, allowing the system to respond to motion conditions by disconnecting connections that would otherwise transmit harmful forces.
2Adaptability or versatility
If detachable connections via welding and soldering units are used, then flexibility for battery unit replacement is improved, but connection complexity increases
Solution Approach 1:
The connecting device serves multiple functions through its different connection units: welding units provide strong electrical connections, soldering units provide detachable mechanical and electrical connections, and the flexible printed circuit board provides both structural support and electrical pathways. This multi-functionality enables battery replacement while maintaining reliable operation.
Solution Approach 2:
The flexible printed circuit board acts as an intermediary element between the battery unit and electronic components. It provides a compliant connection path that can accommodate relative movements while maintaining electrical connectivity, reducing the complexity of direct rigid connections.
3Object-affected harmful factors
If flexible printed circuit board is used to absorb displacement, then hard-coupling damage is prevented, but connection strength is reduced
Solution Approach 1:
The connecting device uses a composite structure combining rigid welding units with flexible printed circuit board materials. The welding units provide strong, rigid electrical connections, while the flexible PCB material provides compliance to absorb displacement and prevent hard-coupling damage. This composite approach maintains both strength and flexibility.
Solution Approach 2:
Different parts of the connecting device have different mechanical properties optimized for their specific functions. The welding units are designed with rigid, strong connections for electrical conductivity, while the flexible printed circuit board portions are designed with compliance for displacement absorption. This local differentiation of material properties allows the system to simultaneously achieve strength and damage prevention.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides a reliable, detachable connection that reduces the risk of damage to components and the connecting device itself, allowing for easy replacement of battery units and preventing overheating during wireless charging.
Implementation Method 1
a detachable connection to the battery unit via at least one welding unit
Implementation Method 2
a detachable connection to the electronic component of the hearing aid via at least one soldering unit
Data Source
AI summary
The present disclosure relates to a connecting device configured to cooperate with a battery unit of a hearing aid and with an electronic component of the hearing aid. The connecting device defines a connecting state, where the connecting device can hold the battery unit in position with respect to the electronic component. The connecting device can be configured to provide a connection to the battery unit via at least one welding unit and the connecting device can be configured to provide a connection to the electronic component of the hearing aid via at least one soldering unit.