Retractable Data Cable Reel With Nested Spring Structure
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Solution Overview
Problem
Traditional retractable chargers have a complex structure and low internal utilization rate, leading to increased device size and inconvenience in placement and reception due to the need for additional components like coil springs and partition plates.
Innovation Solution
A retractable data cable design featuring a housing, cable winding assembly with a baffle and fixing structure, and a movable assembly that includes a driving assembly and swing return member, which simplifies the structure by eliminating the need for partition plates and coil springs, allowing the cable to be freely extended or retracted while maintaining the length with a pre-tightening force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If traditional retractable charger structure is used with partition plates and coil springs, then the cable can be retracted, but the device volume increases and space utilization rate decreases
Solution Approach 1:
The patent combines the coil spring and partition plate functions into the fixing structure. The fixing structure not only fixes the cable but also serves as the mounting position for the coil spring, eliminating the need for separate partition plates and reducing device volume while maintaining the retraction function
Solution Approach 2:
The fixing structure performs multiple functions: it fixes the cable, provides mounting position for the coil spring, and serves as part of the cable winding mechanism. This multi-functional design reduces the number of components needed and simplifies the overall structure
2Reliability
If traditional retractable charger structure is used with two partition plates, then the cable can be limited, but the space utilization rate of the adjusting device is reduced
Solution Approach 1:
The patent merges the cable limiting function with the fixing structure. The fixing structure's design inherently provides the limiting capability without requiring separate partition plates, thus reducing component count while maintaining reliability
3Ease of operation
If coil spring is arranged in a separate position, then the cable can be retracted, but the occupied space of the device is increased
Solution Approach 1:
The patent nests the coil spring within the fixing structure rather than placing it in a separate position. This nesting arrangement allows the coil spring to occupy space that would otherwise be unused, reducing the overall device volume while maintaining the retraction function
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 simplified structure reduces device size, improves space utilization, and enhances practicability by allowing easy extension and retraction of the cable, while maintaining the cable length without additional partition plates, thus making the device lighter and more practical.
Implementation Method 1
The retractable data cable further includes a movable assembly, and the movable assembly is disposed on a side of the baffle away from the fixing structure. The rotation of the cable winding assembly drives the driving assembly to move and causes the auxiliary member to elastically deform, to provide a pre-tightening force
Implementation Method 2
The rotation of the cable winding assembly drives the driving assembly to move and causes the auxiliary member to elastically deform, to provide a pre-tightening force for the driving assembly to swing toward or away from a side of the auxiliary member
Data Source
AI summary
A retractable data cable is provided. The retractable data cable includes a housing, a cable and a cable winding assembly, the housing defines an accommodation cavity, and the cable winding assembly is disposed in the accommodation cavity. The cable winding assembly includes a cable winding reel and a rebound assembly. The cable winding reel includes a baffle and a fixing structure disposed on a side of the baffle. An end of the fixing structure away from the baffle directly abuts against an inner wall of the housing. The cable is wound around the fixing structure and exposed from the housing. The rebound assembly is disposed within the fixing structure and cooperates with the fixing structure to control a rotation of the cable winding reel relative to the housing.