Retractable EV Charging Cable Store With Axial Drum Winding
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Solution Overview
Problem
Existing electric vehicle charging systems face challenges with inconvenient and potentially lost accessory cables, inefficient space utilization of cable storage, and limitations in public charging infrastructure.
Innovation Solution
A cable store system with a drum portion and deflection mechanism for winding cables, allowing automatic winding and efficient space utilization, combined with a retractable connector system for easy use and integration with different charging standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If accessory cables are carried by the vehicle and connected by the user, then user flexibility is improved, but convenience and reliability deteriorate due to inconvenience and potential loss
Solution Approach 1:
The charging system incorporates a retractable cable mechanism that automatically winds and stores the cable when not in use, eliminating the need for manual cable management by the user. The system serves itself by automatically retracting the cable into the charging port housing, preventing loss and inconvenience while maintaining user flexibility to connect to different charging standards.
2Ease of operation
If retractable cable devices are used, then user accessibility is improved, but volumetric efficiency deteriorates due to large space occupation
Solution Approach 1:
The cable is nested within the charging port housing structure, with the cable store integrated into the existing port assembly. The cable winds around a drum portion that is contained within the housing, effectively nesting the cable storage function within the already-allocated space of the charging port, thereby minimizing additional volume requirements while maintaining retractable functionality.
3Stability of the object's composition
If revolving drum cable stores are used, then cable management is improved, but space efficiency deteriorates due to large cable configuration space requirements
Solution Approach 1:
The cable winding mechanism utilizes the axial dimension of the drum portion, with the cable entering axially and winding in the circumferential direction. This dimensional arrangement allows efficient packing of the cable within the cylindrical drum volume, maximizing space utilization while maintaining proper cable management and preventing tangling.
Data Source
AI summary
According to a first aspect of the disclosure there is provided a cable store for a charging device, the charging device for charging and/or discharging an electrical device, the cable store comprising: a drum portion around which a cable of the charging device is configured to be wound; a deflection portion configured to deflect the cable to wind around the drum portion; wherein the cable is configured to enter the deflecting portion substantially in a direction corresponding to an axial direction of the drum portion and wind around the drum portion substantially in a direction corresponding to a circumferential direction of the drum portion.