Adjustable EV Charging Cable Rotation Control for Wear Reduction
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Solution Overview
Problem
Existing charging piles face issues with cable pollution, wear, and safety due to non-automatic cable bundling and repeated cable friction, which affects user experience and product longevity.
Innovation Solution
A charging pile with an adjustable charging cable featuring a cable adjusting device that eliminates torsional force and reduces friction through a rotating mechanism, counterweight slider, and arc-shaped wiring channels, allowing for automatic bundling and storage of the cable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If automatic cable bundling is implemented, then cable management is improved, but cable friction and wear increase
Solution Approach 1:
A guide groove structure is introduced as an intermediary element between the cable and the bundling mechanism. The guide groove directs the cable along a predetermined path, reducing random friction and wear while maintaining automatic bundling functionality. The groove acts as a mediator that constrains cable movement to minimize contact friction.
Solution Approach 2:
The cable bundling mechanism incorporates dynamic elements that adapt to cable movement. The guide groove and associated components are designed to move or flex with the cable during extension and retraction, rather than imposing rigid constraints. This dynamic design reduces friction by allowing natural cable movement while still achieving bundling.
2Reliability
If cable rotation is reduced, then cable wear is decreased, but cable bundling capability is affected
Solution Approach 1:
The cable path is divided into multiple segments through the guide groove structure. Instead of allowing free rotation, the cable is guided through sequential segments that control its movement. This segmentation prevents excessive rotation at any single point while maintaining overall bundling capability through the structured path.
Solution Approach 2:
The guide groove incorporates curved paths rather than sharp angles. The curved geometry allows the cable to transition smoothly between positions, reducing friction and wear from abrupt directional changes. The curved path maintains bundling effectiveness by guiding the cable back to its stored position without causing excessive rotation or stress concentration.
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 prolongs the service life and enhances safety by reducing torsional force and friction, ensuring stable operation and prolonged cable life.
Implementation Method 1
reduce friction caused by cable rotation
Implementation Method 2
a counterweight slider is further included, the counterweight slider is sleeved on the charging cable, and slides along the surface of the charging cable, and there exists a distance between the counterweight slider and the ground
Data Source
AI summary
Disclosed is a charging pile with an adjustable charging cable, including a charging pile body, a charging cable, a charging gun, and a cable adjusting device, where the charging pile body is provided with a cable outlet; a first end of the charging cable is connected to the charging pile body, a second end of the charging cable penetrates the cable outlet, and the charging cable can stretch out or retract through the cable outlet; the charging gun is connected to the second end of the charging cable; and the cable adjusting device is configured for eliminating the torsional force of the charging cable. The charging cable can rotate to generate a torsional force, and the cable adjusting device rotates along with the charging cable, so that the torsional force is eliminated, friction is reduced, the charging cable is protected, and the service life and the safety are enhanced.