Plug Coupling Locking System with Cover Flap for Theft Prevention
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Solution Overview
Problem
Existing locking systems for plug coupling devices are ineffective in preventing unauthorized removal and coupling of plugs with projections, particularly in small motor vehicles and electric bicycles, as they require specific plug configurations and are not easily adaptable to existing infrastructure.
Innovation Solution
A locking system with a manually or motor-actuated locking device that engages behind the plug's projection, combined with a cover flap mechanism, to securely lock and unlock the plug, preventing unauthorized removal and coupling, and is designed for compactness and simplicity to fit various vehicle types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a locking system with a locking device is used to prevent unauthorized removal of plugs with projections, then security against current theft is improved, but the device complexity increases
Solution Approach 1:
The locking system is divided into separate functional components: a locking device with locking element, a cover flap mechanism, and a plug coupling device. This segmentation allows each component to perform its specific function independently, simplifying the overall system while maintaining security. The locking element can engage with different plug configurations, and the cover flap provides additional protection without requiring a completely complex integrated system.
Solution Approach 2:
The locking device is designed to work with multiple plug types having projections, not just one specific configuration. The locking element can engage with various projection shapes and positions, making the system universally applicable to different plug designs. This multi-functionality reduces the need for multiple specialized locking mechanisms, thereby simplifying the overall device complexity while maintaining broad security coverage.
2Reliability
If a locking device is added to secure plugs in plug coupling devices, then unauthorized removal is prevented, but the ease of operation deteriorates
Solution Approach 1:
The cover flap is designed to automatically move to a blocking position when a plug is inserted, preliminarily preventing unauthorized removal before the locking device is activated. This preliminary action occurs automatically during the insertion process, so users do not need to manually activate additional mechanisms. The locking element can then be engaged or disengaged through simple manual operation, maintaining ease of use while providing security.
Solution Approach 2:
The cover flap is designed as a dynamic component that can automatically move between open and closed positions based on plug insertion. When a plug is inserted, the cover flap is pushed to a blocking position that prevents removal. When the plug is removed, the cover flap returns to its original position. This dynamic behavior provides security automatically without requiring complex manual operation, balancing reliability with ease of use.
3Reliability
If a locking system is implemented to prevent unauthorized coupling, then current theft is prevented, but the manufacturing cost increases
Solution Approach 1:
The locking device is merged with the cover flap mechanism, combining two security functions into a single integrated assembly. The locking element works in conjunction with the cover flap to provide both active locking and passive blocking functions. This merging reduces the number of separate components that need to be manufactured and assembled, thereby lowering manufacturing costs while maintaining comprehensive theft prevention capabilities.
Solution Approach 2:
The locking system is designed to be self-activating through the plug insertion process itself. When a plug is inserted, the cover flap automatically moves to a blocking position, and the locking element can be engaged through simple manual manipulation. This self-service design eliminates the need for complex control systems, electronic components, or automated mechanisms, significantly reducing manufacturing costs while providing effective theft prevention.
4Reliability
If a locking device engages behind the plug projection, then unauthorized removal is prevented, but the adaptability to different plug configurations decreases
Solution Approach 1:
The locking element is designed with an asymmetric geometry that allows it to engage with various symmetric and asymmetric plug projections. The locking element features a profile that can accommodate different projection shapes, sizes, and positions. This asymmetric design provides a universal engagement mechanism that maintains reliable locking security across multiple plug configurations without requiring specific plug-locking device matching.
Data Source
AI summary
The invention relates to a locking system for a plug coupling device and to a plug coupling device having a housing in which the locking system according to the invention is arranged. A plug having a projection, which may for example be a guide pin of a commercially available safety plug, can be coupled to the plug coupling device by means of the locking system according to the invention, wherein a locking device in the form of a slider engages behind the projections of the plug such that the plug coupled to the plug coupling device cannot be removed from the plug coupling device. In addition, the locking device being in the locking position prevents an unauthorized insertion of a plug into the plug coupling device.