Earphone Case Positioning Cavity for Stable Charging Contacts
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Solution Overview
Problem
Bluetooth earphones in earphone cases are prone to shifting during frequent vibrations, leading to collisions and incomplete charging contacts, which affect user experience.
Innovation Solution
A storage case with an upper and lower housing that define an accommodating cavity, featuring first and second positioning portions to securely hold the earphone, including symmetrical mounting recesses and flexible pads to prevent shifting and ensure proper charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the earphone is placed in the earphone case without positioning structures, then the case structure is simple, but the earphone shifts during vibrations causing collisions and incomplete charging contacts
Solution Approach 1:
The positioning portions are pre-formed on the inner surface of the earphone case before the earphone is inserted. These positioning structures protrude towards the earphone and define a positioning cavity that preliminarily constrains the earphone's position, ensuring proper alignment of charging contacts before the earphone is fully inserted into the case
Solution Approach 2:
The positioning portions act as intermediary elements between the earphone case and the earphone. These protruding structures mediate the interaction by providing contact points that guide and secure the earphone in the correct position, preventing shifting during vibration while maintaining a relatively simple overall case structure
2Stability of the object's composition
If positioning portions are added to the earphone case, then the earphone positioning stability is improved, but the manufacturing complexity increases
Solution Approach 1:
The positioning portions are integrated into the inner surface of the earphone case as a unified structure rather than separate components. This merging of the positioning features with the case body simplifies the manufacturing process by reducing the number of parts and assembly steps, while still providing effective positioning stability for the earphone
3Object-affected harmful factors
If the earphone case uses a simple accommodating cavity without positioning regions, then the case design is simple, but the earphone shakes and collides during transport
Solution Approach 1:
Rather than making the entire case structure complex, positioning portions are strategically placed at specific locations on the inner surface where contact with the earphone is needed. This local quality approach provides anti-shaking functionality only where necessary, minimizing overall structural complexity while effectively preventing earphone collision and shaking during transport
Data Source
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AI summary
A storage case, an earphone case, and an earphone are provided in the present disclosure. the storage case includes an upper housing and a lower housing. The upper housing and the lower housing cooperatively define an accommodating cavity for an object. The lower housing defines a mounting recess. The storage case further includes a first positioning portion and a second positioning portion. The first positioning portion is disposed on an inner surface of the upper housing facing towards the lower housing and protrudes towards the lower housing. The first positioning portion is disposed adjacent to a first part of the mounting recess. The first positioning portion and the first part of the mounting recess constitute a first positioning region. The second positioning portion is disposed on the inner surface of the upper housing facing towards the accommodating cavity. The second positioning portion has a flat surface or a curved surface. The second positioning portion and a second part of the mounting recess constitute a second positioning region. The first positioning region and the second positioning region cooperatively define a positioning cavity for the object. The positioning cavity in the present disclosure can limit the object in both a vertical direction and a horizontal direction, thereby preventing shifting of the object in the accommodating cavity, and avoiding collisions that could result in scratches.