Ear-Worn Connector Assembly for Interchangeable Hearing Units
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Solution Overview
Problem
Existing ear-worn hearing devices with electrical connectors face challenges in assembly complexity and increased costs due to fixed shapes and integrated electrical components, which complicate the interconnection of components like the receiver-in-canal (RIC) and behind-the-ear (BTE) units.
Innovation Solution
The development of an electrical cable assembly with a flexible or fixed shape configuration, comprising an electrical connector that includes a housing with integrated connector contacts and a circuit board, allowing for interchangeable in-ear units and reduced assembly errors through features like arcuate contacts and wire-guides, along with a moisture and debris barrier.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If fixed shape electrical cable is used to connect RIC and BTE units, then structural stability is improved, but adaptability to varying user anatomy deteriorates
Solution Approach 1:
The electrical cable is designed with flexible segments that allow dynamic movement and bending, enabling the cable to adapt to different user anatomies while maintaining stable electrical connections. The flexible portions permit the cable to conform to varying ear canal shapes and lengths without compromising structural integrity.
2Reliability
If electrical connector includes integrated electrical components, then electrical connection reliability is improved, but device complexity increases
Solution Approach 1:
The electrical connector integrates multiple electrical components including contacts, insulation, and structural elements into a single unified assembly. This merging of components ensures reliable electrical connections while reducing the number of separate parts that need to be assembled, thereby managing complexity through integration rather than multiplication of discrete elements.
3Reliability
If electrical connector includes multiple electrical components, then electrical connection reliability is improved, but manufacturing cost increases
Solution Approach 1:
The electrical connector is designed as a universal component that performs multiple functions including electrical conduction, mechanical connection, and insulation. By creating a multi-functional connector that can be used across different hearing aid configurations, the manufacturing cost per unit is reduced through economies of scale, while maintaining reliable electrical connections through integrated design.
4Manufacturing precision
If fixed shape cable is used, then manufacturing precision is improved, but ease of operation deteriorates
Solution Approach 1:
The electrical cable is segmented into fixed shape portions for precision manufacturing and flexible portions for ease of operation. The fixed segments provide structural stability and precise electrical alignment, while the flexible segments allow for easy manipulation and adaptation during assembly and use, combining the benefits of both rigid and flexible designs.
Data Source
AI summary
An ear-worn hearing device component is disclosed and includes an electrical connector a housing and multiple connector contacts integrated with a contact carrier. A portion of the contact carrier and connector contacts protrudes from the housing and each connector contact is connected to a corresponding contact of a circuit board located in a cavity of the housing. Wires of an electrical cable mechanically coupled to the electrical connector are connected to the connector contacts via the circuit board.