EV Charging Cable Storage Drum with Helical Guide
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing cable storage devices for electric vehicle charging cables are complex and have a limited service life, requiring additional components like movable guides and oscillators for efficient winding and unwinding, which complicates the design and reduces durability.
Innovation Solution
A cable storage device with a rotatable drum mounted on a shaft with an external thread, where the drum's axial displacement relative to the shaft simplifies the winding and unwinding process, and includes drum end disks and tension springs to assist in cable management, along with a helical guide profile and protective housing to prevent damage and soiling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If additional components like movable guides and oscillators are used for efficient winding and unwinding, then the winding process is improved, but the device complexity increases and service life decreases
Solution Approach 1:
The patent removes the complex movable guide and oscillator components from the cable storage device, retaining only the essential drum structure with helical groove. This extraction of unnecessary components simplifies the device while maintaining effective cable winding and unwinding functionality through the drum's rotational movement alone.
Solution Approach 2:
The drum with helical groove performs the winding and unwinding function autonomously through its rotational movement, without requiring additional control mechanisms like oscillators or movable guides. The helical groove geometry itself provides the guiding function, making the system self-sufficient and eliminating auxiliary components.
2Ease of operation
If additional components like movable guides and oscillators are used for efficient winding and unwinding, then the winding process is improved, but the service life is reduced
Solution Approach 1:
By removing the movable guide and oscillator components, the patent eliminates the additional wear points and potential failure sources these components would introduce. The simplified drum structure with fixed helical groove has fewer moving parts, directly improving reliability and service life while maintaining operational effectiveness.
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 allows for simple, ordered winding and unwinding of the charging cable with enhanced durability and service life, eliminating the need for additional guides and oscillators, while protecting the cable and preventing electrical coil formation during charging.
Implementation Method 1
At least one tension spring element, the direction of the action of force of which runs substantially parallel to the axis of the shaft and which acts on an end face of the drum end disk
Data Source
AI summary
The disclosure relates to a cable storage device for a charging cable of a rechargeable battery of an electric vehicle. The cable storage device includes a rotatable drum onto which the charging cable can be wound. The drum is mounted in a rotatable manner on a rotationally fixed shaft. The shaft includes an external thread, and the drum includes an internal thread which engages the external thread.