Electromagnetic lock for comfort and safety
In the process of arranging their home, every owner wants to make it not only comfortable, but also safe. Currently, there are a large number of locks of different types, but one of the most effective is the electromagnetic door lock.
What is an electromagnetic lock?
An electromagnetic lock is a fairly simple device. The main components of the mechanism are the threaded core and the body. In most cases, the core is glued to the transformer steel sheet. This material has been chosen to reduce the effect of residual magnetization when the door is open. Also, a special varnish is applied to remove residual tension. However, it does not give the full effect of eliminating the accumulated voltage. In most cases, the element is made in the form of a set of small plates welded in the shape of the letter “S”. However, sometimes a solid core is used, which is significantly smaller in size, but has a significant disadvantage: such an element can intensively store residual voltage. That”s why a 200 μF high-capacity capacitor is installed in the chain of devices of this type in parallel with the core. The housing is often made of aluminum or stainless steel. It is possible to use plastic elements, but such a design does not differ in durability and reliability.
Electromagnetic lock working principle
The operating principle of the electromagnetic lock is the activation of the magnetic elements as a result of supplying power. As a result of these 5 V voltage effects, magnitudes reach 150 kg or more. When the voltage is activated and the lock is opened, an oscillating circuit with alternating current is formed. The discharge process, due to the presence of the capacitor, takes place through the coil. This changes the polarity of the magnetic field. The rest of the current goes to the magnetization. In case of failure of the condenser there is a need to open the door with considerable effort. In this case, you need to replace the part.
Types of electromagnetic locks
Electromagnetic lock The main difference between electromagnetic lock systems is the principle of operation. So, scissor type electromagnetic door locks have a small anchor built into the cross section. The anchor holds the gap open. The advantage of moving electromagnetic locks is the possibility of hidden installation inside the door leaf. Such a product does not cover the hole.
Characteristics of electromagnetic lock mechanisms
It is worth knowing that not all electromagnetic locks have electronics inside. Products without internal electrical elements are much easier to use and manage. The digital data on the device indicates the weight in kilograms required to open the door. During installation, the locking mechanism is placed on the door leaf. The cover is mounted on top of the door, which removes the free space and narrows the hole. Such measures are necessary, because during installation there is direct contact with parts of the product that conduct electricity. Installation of electromagnetic type locks is done even on evacuation exits, as they are much safer than conventional mechanical devices. In the absence of power to the electromagnetic block, the locks open automatically.
Electromagnetic lock selection
When choosing an electromagnetic door lock, the main criterion is the weight and thickness of the door itself. In the presence of light doors, it is not necessary to mount a device with a maximum holding force of 500 kg. For such products, a device with an index of 150 kg is ideal. Locking mechanisms with the maximum possible index are recommended to be installed in reinforced and armored door structures.
Electromagnetic lock installation
Before starting work, it is necessary to choose a place suitable for placing the device. Installing the electromagnetic lock on the door can be done both horizontally and vertically. The main requirement is to adhere to the door hinges. In order to determine the position of the corresponding lock, an overlap of the main part of the device is carried out. In this case, pins are needed to securely attach the corresponding part. Before drilling the holes, check that a drill of the same diameter as the hole in accordance with the template is mounted. Such a system of connecting elements allows the contact system to slide easily, which ensures a high degree of adhesion of the core. One of the most important features that ensure the correct operation of the product is the placement of the board in parallel. If all this is confusing to you, we advise you to contact experts in this field. Post your required service on bellcom.rs and wait for the contractor”s offers.
