Armature assembly and 1/2 crystal cover magnetic latching relay

Abstract

The invention provides an armature assembly and a 1 / 2 crystal cover magnetic latching relay with the armature assembly. The armature assembly comprises two armatures, two pieces of magnetic steel, twopressing shaft pieces and a connecting shaft, wherein the two armatures are arranged in a front-back symmetrical mode, the two pieces of magnetic steel are arranged between the two armatures and distributed in a left-right spaced mode, and the two pole faces of the magnetic steel are tightly attached to the surfaces of the two armatures respectively; the two pressing shaft pieces are arranged onthe upper sides and the lower sides of the armatures respectively and fixedly connected with the two armatures; and the connecting shaft is arranged between the two pieces of magnetic steel, and the two ends of the connecting shaft penetrate through the two pressing shaft pieces respectively. The armature assembly forms a bridge-type double-armature structure and comprises two working air gaps, sothat the initial suction force of a magnetic circuit system of the relay is effectively improved, and the relay has good dynamic characteristics. Meanwhile, the structure has good symmetry, and the environmental resistance of the relay is effectively improved; and the problem that the retention force of the relay is asymmetric in self-holding and resetting states is solved, and the relay correction efficiency is effectively improved.

Description

technical field [0001] The invention relates to the field of relays, and specifically provides an armature assembly and a 1 / 2 crystal cover magnetic latching relay with the armature assembly. Background technique [0002] With the rapid development of aviation and aerospace technology, aerospace products tend to be miniaturized, miniaturized and intelligent. This makes the space for the signal control system very limited, and the volume of various components needs to be reduced as much as possible. The 1 / 2 crystal cover magnetic latching relay is produced under this background. [0003] The magnetic circuit structure of the existing 1 / 2 crystal cover magnetic latching relay generally adopts a differential structure, and the magnetic steel is in the form of three-stage magnetization (N-S-N or S-N-S), placed between the two yokes, and fixed by spot welding or laser welding; The armature part is located on the outer side of the magnetic circuit part, and can rotate around the...

AI Technical Summary

Problems solved by technology

[0004] Because the magnetic steel is in the form of three-level magnetization, the relay is prone to asymmetric magnetic field strength on both sides of the magnetic steel during the charging and demagnetization process, which affects the calibration efficiency of the relay, and even leads to the difference in the armature holding force between the self-holding and reset states of the relay. Larger, which is not conducive to the environmental resistance of the relay

Secondly, in order to obtain sufficient holding force of the magnet, the gap between the armature and the magnet should be as small as possible, but in order to ensure the friction-free rotation of the armature, the gap between the armature and the magnet must be large enough, and it is difficult to control the gap between the magnet and the armature

Furthermore, the magnetic circuit structure has only one working air gap, which is not conducive to the improvement of suction reaction force

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