Earphone Case Rotating Drum Winding Mechanism
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Solution Overview
Problem
Conventional earphone cases often result in tangled wires when storing earphones, which is inconvenient and time-consuming to untangle.
Innovation Solution
An earphone case design featuring a rotating drum with a driving assembly that winds the earphone wires around it, utilizing a motor-driven mechanism to neatly store the earphones and prevent tangling, with a latching system for easy access and storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If earphones are stored in a conventional earphone case, then the earphones can be stored compactly, but the wires become tangled and difficult to untangle
Solution Approach 1:
The rotating drum automatically winds the earphone wires around it in a predetermined manner before storage, performing the wire organization action in advance. This preliminary winding action prevents tangling from occurring in the first place, eliminating the need for subsequent untangling operations.
Solution Approach 2:
The patent introduces a rotating drum that can dynamically adjust its rotational state to wind and unwind wires. The drum's rotation capability allows the system to adapt between different wire configuration states (wound vs. unwound), providing dynamic control over wire organization rather than a static storage approach.
2Ease of operation
If a rotating drum with driving assembly is added to the earphone case, then wire tangling is prevented and easy retrieval is enabled, but the device complexity increases
Solution Approach 1:
The driving assembly automatically activates to wind the wires when the earphone case lid is closed, using the closing action itself as the trigger. This self-service mechanism eliminates the need for manual wire winding by the user, and the wires are automatically unwound when the lid is opened for retrieval, reducing operational complexity despite the added mechanism.
Solution Approach 2:
The patent combines multiple functions into the rotating drum mechanism: it serves as both the wire winding device and the storage container lid mechanism. The driving assembly is integrated into the lid structure, merging the wire management function with the existing case opening/closing operation, thereby reducing overall system complexity.
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 effectively prevents wire tangling and facilitates easy retrieval of earphones by winding them around the rotating drum, ensuring they are stored neatly and can be quickly accessed without the hassle of untangling.
Implementation Method 1
The rotating drum 10 can be rotated by the driving assembly 20. When the driving assembly 20 drives the rotating drum 10 to rotate, the earphone plug 52 can be first inserted into the accommodating hole 14. Then, rotation of the rotating drum 10 can wind the wires 56 around the rotating drum 10
Implementation Method 2
The latching assembly 42 can latch the shell 40 to the back cover 30. The latching assembly 42 can include a latching member 421 and an elastic member 423. The latching member 421 can latch in the latching hole 331 to latch the shell 40 to the back cover 30
Data Source
AI summary
An earphone case includes a shell, a rotating drum received in the shell, a driving assembly coupled to the rotating drum and configured for rotating the rotating drum, and a back cover latchable with the shell and receiving the driving assembly in a receiving space defined therein. The rotating drum is driven by the driving assembly to rotate to wind a wire of at least one pair of earphones.