How to deal with the power failure of electromagnetic lock

How to deal with the power failure of electromagnetic locks
Electromagnetic locks have entered many families. We all know that this kind of lock is very safe. So what should we do if the electromagnetic lock loses power in our daily life? Let's help us solve this problem:

In order to avoid the failure of access control after power failure, we can choose a power supply with a backup battery, which can generally maintain 5-8 hours of working time, enough time to deal with the control after power failure or wait. The design of electromagnetic force locks (or electromagnetic locks) is the same as that of electromagnets. It uses the principle of electromagnetism. When the current passes through the silicon steel sheet, the electromagnetic lock will generate a strong suction force to tightly absorb the adsorption iron plate to reach the function of locking the door.
Only a small current will generate a huge magnetic force. The access control system that controls the power supply of the electromagnetic lock will cut off the power after the person is correctly identified. The electromagnetic lock loses the suction force and the door can be opened. Because the electromagnetic lock does not have a complicated mechanical structure and the structure of the lock tongue, it is suitable for the passage control of escape doors or fire doors. The electromagnetic lock body is protected by the injection of epoxy resin inside.
So we don't have to worry about any accidents caused by power failure of electromagnetic locks

What is the principle of electromagnetic locks?

Electromagnetic locks are widely used, mainly in various types of enterprises, companies, campuses, hospitals, enterprises and institutions, distributed in various cities across the country, to ensure people's daily work and life. Electromagnetic locks, also called suction locks, generate huge magnetic force when powered on. Any iron object approaching will be sucked. Moreover, the size of the magnetic force is more related to the contact area. The larger the force area of the iron object, the more sufficient the suction force generated, that is, it is not easy to swing. Magnetic force is electricity converted into magnetic force. Magnetic force itself is a force, so the force also has size. The size of the magnetic force can be planned according to needs, so the electromagnetic lock also has strong constraints in setting, 180kg, 280kg, 380kg, etc. This magnetic force, if we have enough strength, can also swing the magnetic force, that is, the electric lock is separated.

The design of electromagnetic lock (or electromagnetic lock) is the same as that of electromagnet. It uses the principle of electromagnetism. When the current passes through the silicon steel sheet, the electromagnetic lock will generate a strong suction force to tightly absorb the adsorption iron plate to achieve the function of locking the door. A very small current will also make the electromagnetic lock generate a large magnetic force. The access control system that controls the power supply of the electromagnetic lock will cut off the power after the person is correctly identified. The electromagnetic lock loses the suction force and the door can be opened. Because the electromagnetic lock does not have a complicated mechanical structure and the structure of the lock tongue, it is suitable for the passage control of the escape door or the fire door. The inside is filled with epoxy resin to protect the lock body. The suction strength of the electromagnetic lock is now expressed in LB. The test method is static pressure. The so-called static pressure is that after the electric ladder is powered on, the pulling force on the adsorption iron plate is gradually increased. When it exceeds the suction force of the electromagnetic lock, the adsorption iron plate is instantly opened. The data of this pulling force is the pulling force value of the electromagnetic lock. The force between the electromagnetic lock and the adsorption iron plate must be face to face and linear pressure (collinear load test). In this way, the suction force (Holding Force) of the electromagnetic lock is. The adsorption iron plate may be short due to the long-term magnetic induction of the electromagnet.