Retractable Wireless Earbud Charging Case Design
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Solution Overview
Problem
Wireless earbuds require efficient storage and charging solutions that ensure convenient handling, reliable charging, and extended battery life, while maintaining compact size and acoustic quality.
Innovation Solution
A storage and charging capsule with a retractable design, featuring a base part, an elongate intermediate part, and a cover part that forms an earbud chamber for housing the earbuds, along with a rechargeable battery and pogo pin charging connectors for efficient power transmission, allowing for easy charging and secure carrying.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless earbuds are stored without a dedicated charging case, then portability and ease of carrying are improved, but the risk of accidental loss increases and charging convenience deteriorates
Solution Approach 1:
The patent combines the storage case and charging device into a single integrated unit. The case houses both the earbuds and a rechargeable battery with charging contacts that automatically connect to the earbuds when placed inside, eliminating the need for separate charging devices and reducing loss risk while maintaining portability
Solution Approach 2:
The case serves multiple functions simultaneously: it protects the earbuds during transport, charges them when closed, and provides a portable power source. The rechargeable battery in the case can charge the earbuds multiple times, making the case a universal solution for storage, protection, and power supply
2Reliability
If a storage case with charging capability is provided, then charging reliability and battery life extension are improved, but device complexity and size increase
Solution Approach 1:
The system employs automatic charging through spring-loaded contacts that engage when the earbuds are placed in the case. The earbuds automatically draw power from the case's battery without user intervention, and the case's battery is automatically recharged when connected to a power source, eliminating complex control mechanisms
Solution Approach 2:
The earbuds nest within the case, and the charging contacts are integrated into the case structure. The case contains both the storage compartment and the charging system (battery and contacts) in a compact nested arrangement, minimizing structural complexity while providing full charging functionality
3Ease of operation
If the charging case includes a retractable cover design, then ease of operation and user-friendliness are improved, but manufacturing complexity increases
Solution Approach 1:
The case features a retractable cover that can be smoothly opened and closed, providing dynamic access to the earbuds. The cover incorporates a spring mechanism that enables automatic return to the closed position, improving user experience while using a well-established mechanical component that is relatively simple to manufacture
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides a compact, user-friendly storage and charging system that ensures reliable charging of wireless earbuds, preventing accidental loss, and extends battery life, while maintaining the earbuds' compact size and high audio performance.
Implementation Method 1
the capsule further has a power source for charging the pair of wireless earbuds
Implementation Method 2
pogo pin charging connectors for efficient power transmission
Data Source
AI summary
A storage and charging capsule for a pair of wireless earbuds is presented. The storage and charging capsule has a base part, an elongate intermediate part, the intermediate part having a longitudinal major axis, and a cover part being retractable over the intermediate part. The intermediate part has a first end attached to the base part, a second end, and an earbud chamber formed between the first and second ends. The earbud chamber is adapted to receive the pair of wireless earbuds arranged one after another along the longitudinal major axis of the intermediate part. The capsule further has a power source for charging the pair of wireless earbuds when placed in the earbud chamber in the intermediate part.