EV Charging Plug Swivel Joint for Cable Kink Prevention
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Solution Overview
Problem
Existing electrified vehicle charging assemblies face challenges in maneuverability and ergonomic efficiency, particularly when dealing with larger diameter and heavier cables, leading to issues such as cable kinking and user discomfort during the charging process.
Innovation Solution
Incorporation of a swivel joint, such as a slip ring, that allows for the rotation of the charge plug relative to the charge cable, enhancing maneuverability and reducing cable kinking, and optionally housed within a casing for protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rigid charge cable is used to connect the charge plug to the power source, then the structural integrity and electrical connection are maintained, but the maneuverability is reduced and cable kinking occurs
Solution Approach 1:
The patent introduces a swivel joint that enables dynamic rotation between the charge plug and the charge cable. This allows the cable assembly to adapt its configuration during insertion and charging operations, transforming a static rigid connection into a dynamic flexible system that maintains reliability while improving maneuverability
2Power
If a heavier duty charge cable is used to handle higher power transmission, then the power transmission capability is improved, but the ergonomic efficiency deteriorates due to user discomfort
Solution Approach 1:
The swivel joint provides dynamic movement that reduces the effort required to position and insert the charge plug. By enabling rotation and flexible positioning, the system allows users to easily maneuver even heavy-duty high-power cables without causing discomfort or strain
3Ease of manufacture
If the charge plug is fixed in position relative to the charge cable, then the manufacturing simplicity is maintained, but the adaptability to different charging positions is reduced
Solution Approach 1:
The swivel joint introduces a controlled degree of freedom between the charge plug and cable while maintaining a relatively simple overall structure. This dynamic component allows the assembly to adapt to various charging positions and orientations without requiring complex mechanisms or significantly complicating the manufacturing process
Data Source
AI summary
An electrified vehicle charging assembly includes a charge plug configured to operably coupled to a charge port of an electrified vehicle, a charge cable that connects the charge plug to a power source, and a swivel joint that permits rotation of the charge plug relative to at least a portion of the charge cable.