Cable-Winding Charger With Rotating Reel for Portable Multi-Interface Charging
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Solution Overview
Problem
Conventional chargers with longer connection cables are inconvenient to carry and cannot charge devices with different connection interfaces due to a single type of connection port.
Innovation Solution
A cable-winding charger design featuring a housing with coaxially arranged conductive rings, a pivot base, and a torsion spring, allowing the data cable to be integrated and its length adjusted, with multiple conductive pieces for various interface compatibility and a transformer circuit for power conversion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the connection cable has a longer length, then the charging range is extended, but the charger cannot be carried conveniently
Solution Approach 1:
The data cable is wound around the pivot base, nesting the cable within the charger housing. This allows the cable to be stored compactly when not in use, making the charger portable and easy to carry, while still providing access to the full cable length when needed for charging.
2Adaptability or versatility
If the charger provides a single type connection port, then the structure is simple, but the charger cannot be used for charging electronic devices with different connection interfaces
Solution Approach 1:
The charger is designed with multiple conductive pieces (at least three) spacedly arranged on the pivot base, each corresponding to different connection interfaces. This allows the single charger unit to support multiple connection types (e.g., USB Type-C, Lightning, Micro USB) without requiring separate chargers for each device type.
3Ease of operation
If the data cable is integrated in the charger, then the carrying convenience is improved, but the cable length adjustment capability is reduced
Solution Approach 1:
The pivot base is rotatable relative to the housing, allowing the wound cable to be dynamically unwound to different extents. This enables the user to adjust the effective cable length based on the charging scenario, while the cable remains integrated and storable within the charger when not in use.
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
Enables convenient carrying and adjustable cable length, supports charging of devices with different interfaces, and provides efficient power transmission through the transformer circuit.
Implementation Method 1
The pivot base is pivotally connected to the housing by taking the column as a pivoting axis. One of two ends of the torsion spring is fixed to the column, and the other end of the torsion spring is fixed to the pivot base. A portion of the cable body is winded around the pivot base
Data Source
AI summary
A cable-winding charger includes a housing, a main circuit board, a plug, a pivot base, a torsion spring, and a data cable. The main circuit board is in the housing and includes conductive rings. The conductive rings are coaxially arranged around the column of the housing. The plug is pivotally connected to the housing and electrically connected to the main circuit board. The pivot base is pivotally connected to the housing. Each conductive piece of the pivot base contacts the corresponding conductive ring. One end of the torsion spring is fixed to the column, and the other end of the torsion spring is fixed to the pivot base. One end of the cable body of the data cable is electrically connected to the conductive pieces, and the other end of the cable body is electrically connected to the connection port.