FUELING OR CHARGING PLUG DOOR LOCK

Abstract

The present disclosure provides a refueling or charging port door lock comprising: a housing, a lifting shaft, a drive element, a screw gear mechanism, and a trajectory control mechanism. The screw gear mechanism is connected between the lifting shaft and the drive element, enabling the drive element to rotate and drive the lifting shaft to move relative to the housing. The trajectory control mechanism is connected between the lifting shaft and the housing and is configured to constrain the lifting shaft, as it moves relative to the housing, to move along a predetermined trajectory.The refueling or charging port door lock of this disclosure drives the lifting shaft by means of a single screw gear mechanism to open or close the refueling or charging port, so that the lifting shaft no longer performs a helical movement relative to the housing and the door lock is not self-locking. Thus, the operator can directly close the refueling or charging port door lock by pressing the refueling port cover or the charging port cover when refueling or charging is performed outside the vehicle after the refueling or charging port door lock has been opened. Operation is convenient and practical.