How Electric Door Lock Works

How power door locks work.

How electric door lock works.

Electric locks of any kind whether used on a car front door or any other entry work using one of two methods. Coded entry one of the most common types of electric locks is the coded entry. An electromagnetic lock or maglock uses a powerful magnet and an armature plate. See more pictures of car gadgets.

By an electronic card reader by a keypad or by a wireless remote control sensor. The last gear drives a rack and pinion gearset that is connected to the actuator rod. A small electric motor turns a series of spur gears that serve as a gear reduction. A keypad is placed outside the door and all you need to do is enter a few numbers to get inside.

Electronic door locks are powered by electric currents not keys which means they typically run through a motor to signal a door s bolt to either open or lock in place. Smartphone operated lock add locking and unlocking your doors to the list of things you can do with a smartphone these days. Electronic door locks also involve parts called actuators which connect the bolt or the cylinder to a small motor completely buried within the door or frame itself. Between the keypads keyless entry systems and conventional locks some cars today have four or five different ways to unlock the doors.

When activated the piece of metal swings like a saloon door and opens the entrance. The motor is controlled by an electrical impulse which may be triggered in a number of ways. The key to match the particular lock lifts the pins to the correct height to allow the latch the part that protrudes into the door frame to be pulled back against the spring allowing the door to open. The first type is an electromagnetic lock the second is an alteration of traditional locking systems.

This system is quite simple. How do cars keep track of all those different methods. Key fobs such as this one activate the power door lock mechanism.