Wireless Headset Electronics Flexible Circuit Board Integration
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Solution Overview
Problem
Existing headsets face challenges in achieving a comfortable fit, optimal acoustic performance, intuitive user interfaces, and efficient manufacturing, particularly in compact designs that balance size, weight, and aesthetics while integrating multiple components effectively.
Innovation Solution
A wireless headset design featuring an earbud assembly with a flexible circuit board and a primary housing assembly, including a microphone and battery retaining region, with components like speakers, microphones, antennas, and circuitry strategically positioned to maximize space and functionality, using flexible circuit boards and innovative manufacturing processes like extrusion and deep draw techniques to integrate multiple components within a small form factor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the size of headset is decreased, then the headset becomes more compact and comfortable, but the acoustic performance becomes increasingly difficult to achieve
Solution Approach 1:
The headset is divided into separate functional modules: earbud assembly containing the receiver, housing assembly containing the microphone and battery, and connecting stem. This segmentation allows each component to be optimized independently for its acoustic function while maintaining a compact overall size.
Solution Approach 2:
The patent utilizes three-dimensional space optimization by positioning components in different spatial orientations within the headset structure. The receiver is positioned in the earbud, the microphone in the housing, and acoustic channels are routed through the stem, effectively using vertical and lateral dimensions to maintain acoustic performance in a compact form.
2Volume of moving object
If multiple components are integrated into a small form factor, then the headset becomes more compact, but the manufacturing complexity increases
Solution Approach 1:
Multiple components are merged into integrated assemblies: the receiver is integrated with the earbud, the microphone with the housing, and the battery with the charging circuitry. This merging reduces the number of separate parts while maintaining manufacturability through standardized assembly processes.
Solution Approach 2:
The connector assembly serves multiple functions: it provides electrical connection for power and data, mechanical attachment between components, and acoustic sealing. This multi-functionality reduces the need for separate components, simplifying manufacturing while achieving compact integration.
3Volume of stationary object
If components are strategically positioned to maximize space, then the internal space usage is optimized, but the device complexity increases
Solution Approach 1:
Components are nested within each other to maximize space utilization: the receiver is positioned within the earbud cavity, the battery is nested within the housing assembly, and acoustic channels are routed through the stem structure. This nesting arrangement optimizes internal space while using standardized mounting positions that simplify assembly.
Data Source
AI summary
A wireless headset device that includes an earbud assembly and a primary housing assembly, fixed to the earbud assembly, is provided. The earbud assembly can include an earbud flexible circuit board having mounted thereon a receiver and processing circuitry. The primary housing assembly can include a microphone and a primary housing flexible circuit board electrically coupled to the earbud circuit board and the microphone. In some embodiments, the headset device can include at least one flexible circuit board and the primary housing can include a connector assembly. The at least one flexible circuit board can be electrically coupled to the connector assembly and can include Universal Serial Bus (USB) circuitry operative to process USB protocol communications and serial circuitry operative to process serial protocol communications.