Hearing Aid Battery Adapter for One-Way Safe Insertion
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Solution Overview
Problem
The hearing device industry faces challenges in allowing independent service providers to exchange rechargeable batteries without damaging the device, due to varying battery sizes and configurations, which can degrade performance or destroy the device.
Innovation Solution
A battery unit with an adapter and electronic circuitry that fits in a hearing device's battery compartment in one orientation but not in another, ensuring secure and fail-safe power supply, accommodating batteries with different geometrical and electrical properties, and allowing for easy insertion without risk of misplacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If batteries with different sizes and configurations are allowed to be exchanged, then adaptability and ease of operation are improved, but device complexity and risk of damage increase
Solution Approach 1:
The battery unit employs an asymmetric outer surface configuration with a specific geometric shape that allows it to fit only in the correct orientation within the battery compartment. This asymmetric design prevents misplacement while maintaining compatibility across different battery types, resolving the contradiction between adaptability and device complexity.
Solution Approach 2:
The patent introduces an adapter as an intermediary component between the battery and the hearing device. The adapter standardizes the connection interface, allowing batteries with different configurations to be accommodated through a single standardized adapter design, thereby improving battery compatibility without increasing the complexity of the battery compartment itself.
2Ease of repair
If independent service providers are allowed to exchange batteries, then ease of repair is improved, but reliability and risk of device damage worsen
Solution Approach 1:
The battery unit is designed with self-aligning features including an asymmetric outer surface configuration that automatically guides proper insertion. This self-service design allows independent service providers to exchange batteries easily while the asymmetric geometry ensures correct orientation, preventing misplacement and maintaining device reliability without requiring specialized training or tools.
Solution Approach 2:
The asymmetric outer surface configuration acts as a preliminary protective measure by preventing incorrect insertion before damage can occur. The geometric constraints built into the design proactively prevent misplacement, ensuring that even if an inexperienced service provider attempts to install a battery incorrectly, the asymmetric shape physically blocks improper installation, thereby maintaining device safety.
3Adaptability or versatility
If batteries from different manufacturers are accommodated, then adaptability is improved, but manufacturing precision requirements worsen
Solution Approach 1:
The adapter is designed as a universal interface that can accommodate batteries from different manufacturers with varying geometries and electrical properties. The adapter provides a standardized connection platform with precisely positioned contacts that align with the hearing device's battery terminals, enabling multi-manufacturer compatibility while maintaining high manufacturing precision through a single standardized design rather than multiple custom interfaces.
Data Source
AI summary
A hearing device and a battery unit for a hearing device is provided, the battery unit having a main axis and comprising an adapter and a battery at least partly accommodated in a battery cavity formed by the adapter, the adapter comprising a body; a first contact configured to contact a first battery terminal of the hearing device; and electronic circuitry connected to the first contact and comprising a memory connected to the first contact, wherein the battery unit has an outer surface configuration configured to, in a first orientation in a first direction parallel to the main axis, fit in a battery compartment of a hearing device, and configured to, in a second orientation in a second direction opposite the first direction, not fit in the battery compartment of a hearing device.