Sloped Guide Surface Lock Mechanism for EV Charge Cable
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Solution Overview
Problem
Existing lock devices for charge cables in electric vehicles lack a reliable mechanism to ensure the lock pin is properly guided to its lock position, which can lead to theft and unauthorized access.
Innovation Solution
A lock device with a guide mechanism featuring a sloped lock guide surface and unlock guide surface, coupled with a movable transmission member, ensures the lock pin is accurately moved to its lock or unlock position, enhancing security and durability by using different slopes for locking and unlocking operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a simple lock mechanism is used, then the device complexity is reduced, but the reliability of locking the charge cable is compromised
Solution Approach 1:
The guide mechanism acts as an intermediary between the lock pin and the lock position, ensuring reliable guiding through the sloped guide surface. This mediator component provides the necessary guidance function without requiring complex control systems or multiple moving parts, thus improving reliability while keeping device complexity manageable.
Solution Approach 2:
The sloped guide surface performs preliminary action by pre-positioning and guiding the lock pin along a predetermined path before it reaches the final lock position. This preliminary guiding action ensures that the lock pin is properly aligned and positioned, improving locking reliability without requiring complex real-time control mechanisms.
2Manufacturing precision
If a sloped guide surface is added to guide the lock pin, then the manufacturing precision of locking position is improved, but the device complexity increases
Solution Approach 1:
The sloped guide surface uses a curved or inclined geometric form instead of flat surfaces or complex mechanical guides. This curved surface naturally guides the lock pin along a predetermined path through geometric constraint, achieving precise lock positioning without requiring complex mechanical guidance structures or multiple components.
Solution Approach 2:
The sloped guide surface changes the geometric parameters of the guiding interface by introducing a specific angle and curvature. This parameter change transforms the guiding mechanism from a complex multi-component system into a simple sloped surface that achieves precise positioning through its geometric properties alone, improving manufacturing precision while minimizing device complexity.
Data Source
AI summary
A lock device that locks or unlocks a locking subject includes a lock member moved between a lock position where the lock member locks the locking subject and an unlock position where the lock member unlocks the unlocking subject and a movable transmission member that acts to move the lock member to at least the lock position. A guide mechanism is arranged between the transmission member and the lock member. The guide mechanism includes a sloped lock guide surface. The lock guide surface guides the lock member to the lock position when the transmission member moves in a first direction.