High-speed electromagnetic mechanism long in service life

Abstract

The invention relates to a high-speed electromagnetic mechanism long in service life and relates to the technical field of electromagnetic mechanisms. The high-speed electromagnetic mechanism is characterized in that a lower shell and an upper shell are fixedly connected, a damping pad is mounted at the bottom of the lower shell, a static iron core is mounted on the damping pad, and the static iron core is fixed on the lower shell through a static iron core fixing pressing plate; a maintaining electromagnet shell sleeves and is fixed on the lower shell, a maintaining electromagnet coil is nested into the maintaining electromagnet shell, a maintaining electromagnet movement mandrel is nested into the maintaining electromagnet coil, one end of a maintaining electromagnet reset spring attaches to the maintaining electromagnet coil movement mandrel, and the other end of the maintaining electromagnet reset spring attaches to the maintaining electromagnet coil; a self-locking mechanism shell sleeves and is fixed on the static iron core, a slide connecting rod is hinged and slidably fixed in the self-locking mechanism shell, a self-locking movable pull rod is fixedly hinged in the self-locking mechanism shell, and a reset stretching spring is mounted below the self-locking movable pull rod. By the high-speed electromagnetic mechanism, the problems that an existing electromagnetic mechanism is high in energy consumption, slow in closing and separating of an upper iron core and a lower iron core, easy in burning of upper and lower contacts, and easy is arc discharge of the upper and lower contacts are solved.

Description

Technical field: [0001] The invention relates to the technical field of electromagnetic mechanisms, in particular to a high-speed and long-life electromagnetic mechanism. Background technique: [0002] The existing electromagnetic mechanism uses the coil to energize the upper and lower iron cores to close. In order to keep the closure, the electromagnetic coil is always in the energized state, which not only reduces the service life of the electromagnetic coil, but also keeps the temperature of the electromagnetic coil at a relatively high level. , causing the aging speed of the electromagnetic coil to be extremely fast, which seriously affects the suction force and closing speed of the electromagnet. Therefore, it is more common for the solenoid coil of the contactor to burn out. [0003] Another thing is that the iron core has to overcome the resistance of the return spring during the closing process, which results in a decrease in the closing speed of the iron core. In ...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a high-speed and long-life electromagnetic mechanism, which can solve the problems of high energy consumption of the existing electromagnetic mechanism, slow closing and opening speed of the upper and lower iron cores, easy burning of the upper and lower contacts, and easy arcing of the upper and lower contacts

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