Connector Device Partial Locking Mechanism for EV Safety

The patent introduces a delay mechanism that waits for a predetermined period after the interlock circuit is turned off before allowing complete connector separation. This preliminary waiting period enables residual electric charges to dissipate naturally, eliminating the electrical shock hazard before the operator handles the separated connector. The delay mechanism is implemented through a locking mechanism that maintains partial engagement during this critical dissipation period.

The patent implements a partial locking mechanism that provides intermediate engagement positions between the fully connected and fully separated states. Instead of requiring complete separation for disconnection, the locking mechanism allows the connector to be held in a partially engaged state where the electrical connection is already cut off but physical separation is prevented. This partial action approach eliminates the harmful electrical shock risk without requiring a long delay period, thus minimizing the time loss.

The patent introduces a locking mechanism as an intermediary element between the electrical connection and physical separation. This locking mechanism acts as a mediator that controls the separation process: it allows the electrical connection to be cut off first (turning off the interlock circuit), then maintains a partial physical engagement during the charge dissipation period, and only after the delay expires does it permit complete separation. This intermediary control ensures that exposed terminals never occur during the critical dissipation period, eliminating electrical shock risk while maintaining ease of operation through clear mechanical states.