Portable EV Cable Winding Device with Rotating Tube and Fixed Flange
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Solution Overview
Problem
Existing cable winding devices for electric vehicles are complex in configuration and lack portability, with some designs not allowing for remote charging due to fixed cable units and inadequate housing structures.
Innovation Solution
A portable cable winding device with a simplified structure, featuring a rotating portion with a tube for winding cables, a fixing portion with a flange for support, and a holding mechanism to limit rotation, allowing for easy detachment and reattachment of the cable unit, enabling portable and flexible charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a rotating terminal is employed to allow the second cord to rotate with respect to the interrupt device, then the cord can be pulled out and connected, but the configuration of the cord set becomes complicated
Solution Approach 1:
The charging device is divided into a fixed portion and a rotatable portion. The cable unit is segmented into a first cable connected to the fixed portion and a second cable connected to the rotatable portion. This segmentation allows the second cable to rotate independently while the first cable remains stable, enabling flexible connection without requiring a complex rotating terminal throughout the entire cord set.
Solution Approach 2:
The rotatable portion is extracted as a separate component from the fixed portion. The second cable and second connector are housed in the rotatable portion, which can rotate independently. This extraction eliminates the need for a rotating terminal in the first cable connection, simplifying the overall configuration while maintaining operational flexibility.
2Reliability
If the cable unit including the CCID and cable is fixed to the cabinet, then the charging device structure is stable, but charging cannot be performed when a vehicle is stopped at some distance away
Solution Approach 1:
The charging device transitions from a completely fixed structure to a dynamic structure with a rotatable portion. The rotatable portion can rotate and extend, allowing the second cable to reach vehicles at a distance. This dynamic capability provides adaptability for remote charging while the fixed portion maintains structural stability and reliability.
Solution Approach 2:
The charging device is segmented into a fixed portion housing the first cable and CCID, and a rotatable portion housing the second cable and second connector. This segmentation allows the fixed portion to maintain stability while the rotatable portion provides the versatility needed for remote charging operations.
3Device complexity
If the charging cable coupling structure does not include a housing structure, then the design is simple, but the cable lacks protection and organization
Solution Approach 1:
The first cable is wound around the outer circumferential surface of the tube portion, and the second cable is housed within the tube portion. This nested arrangement protects the cables while keeping the structure relatively simple. The tube portion serves as a protective housing for the second cable, while the first cable is organized around it, providing both protection and organization without excessive complexity.
Data Source
AI summary
A cable winding device is provided, around which a cable unit is wound that includes a first connector, a first cable connected to the first connector, and a control unit connected to the first cable and controlling an amount of a current flowing through the first cable. The cable winding device includes a fixing portion, a rotating portion provided rotatably with respect to the fixing portion. The rotating portion includes a tube portion having an outer circumferential surface around which the first cable is wound, and a first holding portion provided within the tube portion and holding the control unit.