Isuzu central door lock

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Description of central door locking

The working principle of central control door lock is to convert electric energy into mechanical energy, and use the motor to drive the gear to turn to open and close the door. The basic composition is mainly composed of door lock switch, door lock actuator and door lock controller.

(1) Door lock switch: most central control door lock switches consist of main switch and sub switch. The main switch is installed on the door beside the driver. The main switch can lock or open all the doors of the whole vehicle. The main switch can be separately installed on other doors to control a single door.

(2) Door lock actuator: the door lock actuator is controlled by the door lock controller to perform the locking and opening tasks of the door lock. There are three types of structures: electromagnetic type, DC motor type and permanent magnet motor type.

(3) Door lock controller: a control device providing lock / open pulse current for door lock actuator, which has the function of controlling the direction of power on current of actuator, and has the function of timing in order to shorten working time. According to its control principle, it can be divided into three types: transistor type, capacitor type and speed sensing type.