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Magnetic locks are widely used in various types of enterprises, companies, schools, hospitals, enterprises and institutions, and are distributed in cities across the country to protect people's daily work and life. The magnetic lock, also called the suction lock, generates a huge magnetic force after the power is applied. Any object with an iron object will be sucked up, and the size of the magnetic force is more related to the contact area. The suction force generated by the larger the area of ​​the iron object is the suction force. The more fully, it is not easy to pull open. The magnetic force is converted into magnetic force. The magnetic force itself is a force. Then the force has the size and the size of the magnetic force. It can be designed according to the needs, so the magnetic lock is also powerfully limited in setting. There are 180kg, 280kg, 380kg, etc. This magnetic force, if we have enough strength, can also pull the magnetic force away, that is, the magnetic lock is separated.
The design of the magnetic lock (or electromagnetic lock) is the same as that of the electromagnet. It uses the principle of electromagnetism. When the current passes through the silicon steel sheet, the electromagnetic lock will produce a strong suction force and tightly attract the adsorption iron plate to achieve the effect of locking the door. . Very small current will also cause the electromagnetic lock to generate a large magnetic force. The effective control of the electromagnetic lock power supply access control system recognizes the correct power, then the power is cut off, and the electromagnetic lock loses the suction to open the door. Because the electromagnetic lock has no complicated mechanical structure and the structure of the bolt, it is suitable for the passage control of the escape door or the fire door. The inside of the lock body is protected by infusion of epoxy. At present, the suction strength of the electromagnetic lock is expressed in lb (lb), and the test method is static pressurization. The so-called static pressure is that the electromagnetic lock gradually increases the pulling force on the adsorption iron plate after the electromagnetic lock is energized. When the suction force of the electromagnetic lock is exceeded, the adsorption iron plate is pulled open instantaneously, and the data of the tension force is the tensile value of the electromagnetic lock. Moreover, the force of the electromagnetic lock and the absorbing iron plate must be face to face and a collinear load test, so that the holding force of the electromagnetic lock is the largest. The adsorbed iron plate may be temporarily magnetized due to the magnetic induction of the electromagnet for a long time.
The advantage of the magnetic lock, the magnetic lock is very convenient in terms of escape, the power can be unlocked when the power is off, the magnetic lock is very energy-saving, the first choice for energy saving and environmental protection, the installation is simple and the use is convenient.
The disadvantage of the magnetic lock, the magnetic lock is more expensive in terms of price, the magnetic lock is limited by the magnetic force, and the lock can be opened when the load of the lock itself is exceeded. This is the disadvantage of the magnetic lock, the magnetic lock can only Open in one direction, limited by the installation location.
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