What is the Principle of Central Control Door Locks?

[VanAlejandro]

Central control door locks operate on the principle that the internal mechanism is either coil-driven or motor-driven. By altering the direction of the current flow through the coil or motor, the lock can be engaged or disengaged. Therefore, the central control lock has only two leads: when one lead is connected to the positive terminal of the power source and the other to the negative terminal, the central control door lock mechanism unlocks. Conversely, when the polarities are reversed, the lock engages. Central control door locks, commonly referred to as central locks, are increasingly being installed in vehicles to enhance convenience and driving safety. The actuator of the central lock executes the driver's commands to lock or unlock the doors. There are three types of driving mechanisms for door lock actuators: electromagnetic, DC motor, and permanent magnet motor.