Energy-saving sticking attraction type electric door catch

Abstract

The invention provides an energy-saving sticking attraction type electric door catch. The energy-saving sticking attraction type electric door catch comprises a movable part, a static part and a driving operation part. The movable part is a permanent magnet which is fixedly assembled on a buckling surface of a door leaf body. The static part is a structural body of a coil and an iron core, which is assembled on a buckling surface of a door frame body. The structural body of the coil and the iron core is an unlocking electromagnet, and an N pole and an S pole formed by electrifying the structural body are opposite to the N pole and the S pole of the permanent magnet respectively. The permanent magnet is assembled according to a direction in which the polarity of the permanent magnet repels the unlocking polarity of the electromagnet. The structural body of the coil and the iron core forms the unlocking electromagnet of the energy-saving type electric door catch. The structural body is fixedly packaged between a lock shell and a base. The coil is used as a driving part for realizing the unlocking electromagnet, so that a core hole of a framework tightly sleeves the iron core; the iron core is downward bent outside two ends of a framework of the coil to form a C shape, two end columns penetrate through and fixedly cover between base plate bodies, and two ends are leveled with a lower panel of the base; and the lower part of the coil is embedded into and glued into a coil groove of the base. According to the energy-saving electric door catch, the driving operation part comprises three parts including the coil, a power supply circuit and an operation circuit.

Description

technical field [0001] The invention relates to an electromagnetic-electronic door latch. Background technique [0002] The gates of many places and even the small doors of many halls and rooms are equipped with latch mechanisms. In recent decades, there have been electromagnetic-electronic door latches that can be operated by buttons, which makes the opening and closing of the door latch convenient and free. Electromagnetic-electronic door latches are switched by electromagnets. Some are operated by buttons to energize or de-energize the electromagnetic coil of the electromagnet, and drive the latch tongue to extend or retract, thereby realizing closing or opening; some are operated by buttons to energize or de-energize the electromagnetic coil of the electromagnet to generate or Eliminate the magnetic attraction of the door frame electromagnet to the door leaf armature, so as to realize the precise closing or opening. However, all of these electromagnetic-electronic doo...

AI Technical Summary

Problems solved by technology

Especially the electromagnetic-electronic door latch with a suction latch, the latch state will consume more energy

Moreover, the similar latch state is the normal state of most doors, which further aggravates the energy consumption

In addition, in many electromagnetic-electronic door latch applications, this kind of normal and strong maintenance through large energy consumption still has great potential safety hazards

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