Magnetic locks, electric plug lock technology principle and the main difference

Magnetic lock ( Or electromagnetic lock) The role of the principle and the electromagnet, is to use the electrical magnetic, then the principle of heteropolar attraction, when an electric current passes through the silicon steel sheet, electromagnetic lock tight tight stick to produce powerful suction adsorption iron plate to achieve the effect of locking the door when you leave. As long as the small current electromagnetic lock can produce a great deal of magnetic, electromagnetic lock power of entrance guard control system identification personnel right after blackouts, electromagnetic lock lose suction can open the door. Because the electromagnetic lock is not complicated mechanical structure and the structure of the lock tongue, applicable in doors or fire door access control. Its internal perfusion epoxy resin ( 环氧树脂) Protect the lock body. The electromagnetic lock suction strength expressed in LB ( Lb) , the test method is static pressure. Electromagnetic lock after electrify the so-called static pressure is slowly and gradually increase the tensile strength of the adsorption of iron plate, when beyond electromagnetic lock suction moments away adsorption iron plate, the pull force data is tension value of electromagnetic lock. And electromagnetic lock must be face to face with the active force of adsorption iron plate and the linear pressure ( collinearloadtest) , so the electromagnetic lock suction ( HoldingForce) Is the largest. Adsorption of iron plate for a long time magnet magnetized magnetic induction is likely to be short. Electricity is a kind of electronic control lock, mortise lock on and off by current drive 'lock tongue' the function of the extended or retracted to lock the door or open the door. Of course, the realization of the function of closed to open the door to cooperate with the 'disk' to achieve. Usually electricity mortise lock is composed of two main parts: the lock body and lock. Key in the lock body parts for 'the lock tongue', cooperate with the 'lock' can be realized to achieve 'shutdown' and 'open' status. The lock tongue insertion hole is closed, the lock tongue leave the lock for the door. Because of the lock tongue scalable functions, only is headed to the name of the 'electric mortise lock'. It was also because of this characteristic, electric mortise lock is often used to all kinds of flat open ( Two-way open) On. At the same time, the 'hidden' installation is more suitable for the characteristics of the lock body places high confidentiality requirements. Modern building wiring. Entrance guard card and magnetic locks, electric plug locks. Between the output signal. Usually is through the signal transmission between them ways, RS422, RS485 and RS232 several common way of data transmission, including RS422 is a duplex data transmission mode. To the transmission of outside. General with an odd number of data transmission. 3 line, five lines of signal lines, used for wiring is more, in the placket system, induction and magnetic locks or electricity mortise lock signal. RS485 communication converter. Is the double half singular data transmission signal. He is according to the characteristics of the wiring. Long transmission distance and with it the access or electric magnetic lock latch shoulds not be too much. If more than necessary into multiple interface management. But relatively, the agreement will be more complex. They generally in building intercom, access the placket. Magnetic locks or electric mortise lock transmission signal. RS323 communication converter, it is used in intelligent devices, it is the characteristics of the transmission distance is short, now of intelligent equipment, application of more common. So it is also the most widely used. With the progress and development of security. Signal technology is also in a wide range of promotion, also used in a wide range of intelligent community system, signal control technology. Be applied to signal control technology, and constantly, plot out the introduction of magnetic locks, electric plug locks. Also be used in other security products.
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