Let's first briefly understand the principle of the access control lock. The current flows through the coil (lock cylinder) to generate a magnetic flux to control the closing and opening of the door. According to the control method, it can be divided into: ① Power-on unlocking type: When power is on, the lock will open the door. ②Power off type: When the power is off, the lock will open the door.

Below we will introduce various types of locks in detail. Common access control system locks are divided into power-on unlocking type and power-off unlocking type.

1. Power-on unlock type

   
   

1. Ordinary electric lock

Ordinary electric control lock, scope of application: iron door.

According to the lock cylinder, it can be divided into: single head, which is generally used in ordinary unit doors.

Double head, with two lock cylinders, used in special occasions such as banks, prisons, etc.

Appearance can be divided into: dusting, the appearance is gray-white.

Electroplating, the appearance is silvery white.

Locking method: lock on collision, the door should be equipped with a door closer when it bounces back.

Installation direction: open left, open right, open outward, open inward. The main lock body is mounted on the door frame.

Unlock voltage: 12~15V. Unlocking current: 1.5A-3A power-on/delay time: less than 1S.

Power supply and wiring: No additional power supply, 2 core wires, 12V pulse voltage.

Disadvantages: The door is noisy, the vibration is large, and it cannot be automatically locked.

   b. Silent electric lock

Silent electric lock, scope of application: iron door.

The appearance is relatively simple, and it is generally a kind of electroplating.

Locking method: the collision locks, the door bounces back to configure the door closer.

Installation direction: no need to distinguish

Unlock voltage: 6~15V. Unlocking current: 1.5A-3A power-on/delay time: less than 1S.

Power supply and wiring: No additional power supply, 2 core wires, 12V pulse voltage.

Advantages: low noise when opening the door, can be automatically locked.

Disadvantages: the door is not closed, there is no sound, and it cannot be automatically locked.

  c. Motor lock

Motor lock, scope of application, iron door.

Unlocking method: voltage signal control unlocking,

A door closer is required for the door to bounce back.

Installation direction: no need to distinguish

Unlock voltage: 12V. Unlocking current: starting current 350MA, maintaining current 15MA.

Power supply and wiring: 2-pin signal, 2-pin power supply. Advantages: low noise when opening the door, automatic detection of the lock tongue state, automatic compensation if the lock is not in place, the door is not closed

There is a beep in place.

Disadvantages: It cannot be automatically locked when there is no electricity, and it becomes a mechanical lock, which needs to be manually locked (with a key or a button on the lock)

   d. Base station lock

Station lock refers to the special use of unattended telecommunications, mobile base stations.

Unlocking method: The voltage signal controls the unlocking, and the door springs back to be equipped with a door closer.

Installation direction: embedded in the door body.

Unlock voltage: 12V. Unlocking current: starting current 35OMA, maintaining current 15MA. Power supply and wiring: 2-pin signal, 2-pin power supply. Pros: Low door opening noise.

Unlocking delay time: determined by the controller or special power supply.

   e. Electric mortise lock

Note: Many people think that the editor has made a mistake. Our common electric mortise locks seem to be unlocked by power off. The editor tells you that there is no mistake. The structure of the electric mortise lock of the power-off unlocking type is not the same as that of the power-on unlocking. You can look at the pictures carefully, all Baidu.

Electric mortise lock, applicable scope, iron door, wooden door, metal door, fire door.

Unlocking method: power on to unlock, can be pulled or pushed, need to be equipped with a floor spring.

Function: without delay, with delay, with indicator light, with door status detection, lock status detection.

Advantages: beautiful.

Disadvantages: The installation requires high precision, large starting current, 1A~2A, maintaining current: 200~500MA. Therefore, it is used very little.

2. Power-off unlocking type

   a. Magnetic lock

Magnetic lock, scope of application, iron door, wooden door, metal door, fire door.

Appearance: concealed installation, exposed installation (hanging type), single opening, double opening.

Function: without delay, with delay, with indicator light, with door status detection, lock status detection.

Tension: 150/180KG, 280f/300KG, 500KG General unit access door 280/300KG.

Unlocking method: power off to unlock, can be pulled or pushed, need to configure ground spring.

U-shaped door clip (bracket): for frameless glass doors.

L, Z type door clip (bracket): 90 degree open wooden door, metal door, fire door.

Working voltage: 12V. Working current: 220~50OMA.

Advantages: Simple installation.

Disadvantages: Compared with the electric control lock, the wiring is complicated, and the delay problem needs to be solved.

The delay of the magnetic lock can be through: the delay device, the magnetic lock itself, the power supply (with delay function), and the door button.

   b. Electric mortise lock

Electric mortise lock, applicable scope, iron door, wooden door, metal door, fire door.

Unlocking method: power off to unlock, can be pulled or pushed, need to configure ground spring.

Function: without delay, with delay, with indicator light, with door status detection, lock status detection.

Advantages: beautiful.

Disadvantages: The installation requires high precision, large starting current, 1A~2A, maintaining current: 200~500MA.

Author: Written by Ms.Anna Zhang from S4A INDUSTRIAL CO., LIMITED