Lock and unlock signal: Electronic lock usually has two signal input terminals, by giving the two signal input terminals corresponding control signals to achieve the lock and unlock electronic lock. When input a certain voltage forward pulse to the electronic lock, the electronic lock locks; The electronic lock is unlocked when a reverse pulse of a certain voltage is input to the electronic lock.

Motor drive: The motor receives instructions from the control module and drives the mechanical part of the electronic lock to perform corresponding locking or unlocking actions according to the instructions. This control mode can precisely control the switch state of the lock, and can be programmed to achieve more complex control logic.

Control process: Before charging, when the vehicle plug is plugged into the vehicle socket, the vehicle charger will output the vehicle wake up signal after the self-test is successful, and the vehicle controller will wake up and self-test is successful, the output wake up signal will be sent to the battery management system, the battery management system will wake up and complete the self-test, and then the control electronic lock will be locked. When the charging ends or the charging needs to be interrupted, the battery management system will send instructions to the vehicle charger, and the vehicle charger will stop output current. When the battery management system detects that the charging current is less than the set threshold through the current sensor, the electronic lock will be unlocked.

Through the above mechanism, the electric motor drive in the electronic locking mechanism of the DC charging gun head ensures the stability and safety of the charging process, and also improves the intelligence and automation level of the charging facility.