Hearing Aid Battery Module With Conductive Adhesive and Protective Coating
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Solution Overview
Problem
Existing hearing devices face issues with battery contact loss, leakage, and the need for improved manufacturing methods that reduce complexity, cost, and space usage, while providing protection against environmental factors and facilitating easy repair and exchange.
Innovation Solution
A battery module with a conductive adhesive and coating that mechanically fixes the battery, offers environmental protection, and allows for easy exchange and reuse, using conductive adhesive and a coating to connect the battery to a conductor unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional support parts (foams and/or springs) are used for mechanical fixation of the battery, then the battery is securely fixed, but the device complexity increases, cost increases, and more space is occupied
Solution Approach 1:
The patent merges the mechanical fixation function and the electrical connection function into a single component - the conductive adhesive. This eliminates the need for separate support parts (foams and/or springs) while achieving both secure battery fixation and electrical connectivity, thereby reducing device complexity and space occupation without compromising fixation reliability
Solution Approach 2:
The conductive adhesive serves multiple functions simultaneously: it acts as an adhesive for mechanical fixation, provides electrical conduction for power transfer, and creates mechanical bonding between the battery and conductor unit. This multi-functionality eliminates the need for separate components, reducing overall device complexity and part quantity
2Reliability
If no protective coating is applied to the battery module, then the manufacturing process is simpler, but the battery is vulnerable to corrosion, short circuits, and leakage from water, moist, earwax, and other human secretion products
Solution Approach 1:
The patent applies a protective coating in the form of a thin film around the battery module. This thin film provides effective protection against water, moist, earwax, and other human secretion products, preventing corrosion and short circuits, while adding minimal structural complexity to the battery module
Solution Approach 2:
The protective coating is applied in advance to the battery module before assembly, creating a protective barrier that prevents harmful substances from reaching the battery components. This beforehand protection mitigates potential corrosion and electrical failures before they can occur during product use
3Ease of repair
If the battery is permanently integrated into the hearing device, then the device structure is simpler, but repair and exchange of battery and other parts becomes difficult
Solution Approach 1:
The patent segments the battery system into a modular battery module that can be detached from the hearing device housing. The battery module comprises the battery, conductive adhesive, and protective coating as an integrated sub-assembly, while the conductor unit remains in the hearing device. This segmentation enables easy removal and replacement of the battery module without affecting other components, facilitating repair and exchange while maintaining relatively simple overall device structure
Solution Approach 2:
The modular battery module design enables the battery to be easily discarded and replaced when depleted or malfunctioning, while the protective coating and other parts of the battery module can be recovered and reused. This approach improves ease of repair and reduces waste, as the protective coating and structural components can be retained with the hearing device housing
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 simple, compact, and cost-effective battery module with enhanced protection and longevity, reducing the risk of corrosion and leakage, and enabling easy repair and reuse, thus enhancing user safety and reducing costs.
Implementation Method 1
a conductive adhesive arranged between the battery and the conductor unit for electrically connecting the conductor unit to the battery
Implementation Method 2
a coating provided at least partly around the battery component to form the battery module
Data Source
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Figure 5
AI summary
Disclosed is a hearing device (20) comprising a battery module (10). The battery module (10) comprises a battery (2) for powering the hearing device (20); a conductor unit (4) for providing electrical connection to the battery (2); a conductive adhesive (6) arranged between the battery (2) and the conductor unit (4) for connecting the conductor unit (4) to the battery (2) to form a battery component (12); and a coating (8) provided at least partly around the battery (12) component to form the battery module (10).