Earphone Charging Case Groove Layout for Reliable Electrode Contact
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Solution Overview
Problem
The success rate of electrode terminals in charging cases matching with those of earphones is relatively low, leading to inefficient charging and storage.
Innovation Solution
A charging case design with a profiling groove system that includes a first electrode terminal inclined within the groove, allowing for precise alignment and connection with the earphone's electrode terminal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional charging case designs are used with standard electrode terminal arrangements, then the structure is simple and easy to manufacture, but the matching success rate between charging case electrodes and earphone electrodes is low
Solution Approach 1:
The patent applies local quality by creating a profiling groove with a specific non-standard geometry that is tailored to match the electrode terminal arrangement of the earphone. Instead of using a uniform or standard groove design, the groove is locally adapted with specific curvature and dimensional characteristics that correspond to the earphone's electrode positions, thereby improving matching reliability without requiring complete redesign of the entire charging case structure
Solution Approach 2:
The patent implements preliminary action by pre-configuring the profiling groove with the exact geometry and dimensions needed to accommodate the earphone's electrode terminals before the earphone is placed in the charging case. The groove is designed in advance with specific spatial parameters that ensure proper alignment and contact between electrodes, eliminating the need for adjustment during assembly
2Reliability
If the first electrode terminal is exposed in the profiling groove with an inclined extension direction, then the alignment and connection with earphone electrodes is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The patent applies asymmetry by designing the first electrode terminal with an inclined extension direction that does not follow the standard perpendicular or parallel orientation. The electrode terminal is positioned at a specific angle within the profiling groove, creating an asymmetric configuration that matches the corresponding asymmetric electrode arrangement on the earphone, thereby improving connection reliability while the asymmetry itself defines the required precision tolerance
Solution Approach 2:
The patent segments the charging case structure by separating the profiling groove into distinct functional regions: a first profiling groove region for accommodating the core module and a second profiling groove region for accommodating the hook structure. The first electrode terminal is specifically exposed in the second region, allowing independent optimization of each segment's positioning precision requirements
Data Source
AI summary
The present disclosure provides a charging case for at least one earphone. Each of the at least one earphone may include a core module and a hook structure connected to the core module. The charging case may include a lower housing assembly. The lower housing assembly may be disposed with at least one profiling groove, and each of the at least one profiling groove may be configured to accommodate one of the at least one earphone. The lower housing assembly may be disposed with a first electrode terminal exposed in each of the at least one profiling groove, and an extension direction of the first electrode terminal may be inclined with respect to a thickness direction of the charging case. Therefore, the success rate of the connection of the electrode terminals can be improved.