Earphone Shell Layout for Concha Fit and Wearing Stability
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Solution Overview
Problem
Existing earphones often fail to fit the shape of the user's ear, leading to issues such as oppression and discomfort when worn.
Innovation Solution
The earphone design includes a shell assembly with a loudspeaker and battery positioned at an incline relative to each other, allowing for a more compact structure that fits snugly into the concha cavity, and incorporates a partition wall and circuit board for improved space utilization and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the loudspeaker and battery are arranged side by side in the shell assembly, then the components can be easily assembled, but the length of the shell assembly increases, making it difficult to fit into the concha cavity and causing discomfort
Solution Approach 1:
The patent transitions from a linear side-by-side arrangement to an inclined three-dimensional configuration. The loudspeaker and battery are positioned at different angles and depths within the shell assembly, utilizing spatial dimensions to reduce the overall length while maintaining component functionality and assembly feasibility.
Solution Approach 2:
The battery is positioned partially within the shell assembly structure, with part of it extending into the concha cavity space. This nesting approach allows the battery to be integrated into the existing structure rather than placed alongside it, reducing the total length of the assembly.
2Quantity of substance
If the shell assembly is made longer to accommodate components, then all components can be housed, but it cannot be stably supported when worn and cannot reach into the concha cavity
Solution Approach 1:
The ear hook is designed with a curved three-dimensional structure that wraps around the concha cavity. This spatial configuration provides multiple contact points and distribution of force, enhancing wearing stability without requiring an increased linear length of the shell assembly.
Solution Approach 2:
The ear hook features curved and rounded geometries that conform to the natural shape of the concha cavity. This curvature allows the hook to engage securely with the ear anatomy, providing stable support while maintaining a compact overall尺寸.
3Length of moving object
If the shell assembly length is reduced for better fit, then comfort is improved, but space for accommodating components and circuit board is reduced
Solution Approach 1:
The circuit board is positioned to overlap with the projections of the loudspeaker and battery, with components arranged in a nested configuration. The battery is partially integrated into the shell structure, and the circuit board utilizes the space between components, maximizing volume utilization within the reduced shell assembly length.
Solution Approach 2:
Components are arranged in a three-dimensional inclined configuration rather than a linear arrangement. This spatial optimization allows the loudspeaker, battery, and circuit board to occupy different vertical and angular positions, increasing the effective accommodation volume within the constrained length of the shell assembly.
Data Source
AI summary
The present disclosure relates to an earphone (100), including: a shell assembly (10), configured to form an accommodation space (101) and extending along a first direction (X) and a second direction (Y), the second direction (Y) is orthogonal to the first direction (X); an ear hook (2) connected to the shell assembly (10), wherein when the earphone (100) is in a wearing state, at least a portion of the ear hook (2) is located at a rear side of an ear of a user, and the shell assembly (10) is stacked on a front side of the ear of the user along the second direction (Y); and a loudspeaker (13) and a battery (14) spaced apart from each other along the first direction (X) and accommodated in the accommodation space (101).