polarity relay

Abstract

A polar relay is provided including: an insulation housing, an armature assembly, and a coil assembly. The armature assembly is pivotably mounted within the insulation housing. The armature assembly is rotatable between a first position and a second position, with one end of the iron core in contact with one armature of the pair of armatures while the other end of the iron core is spaced apart from and thus out of contact with the pair of armatures by corresponding gaps therebetween. The gaps are provided without providing a magnetic isolation plate between or applying an isolation layer onto contact layers of the armature and the iron core. The armature assembly is rotatable around a vertical pivot axis, avoiding changing a position of the pivot point during the movement of the iron core, stabilizing the action of the armature assembly, and ensuring the continuity of the action of the product.

Description

technical field [0001] The invention relates to a polarized relay, in particular to a monostable polarity relay. Background technique [0002] A polarity relay generally includes an insulating case and a coil assembly, an armature assembly and multiple sets of contact assemblies accommodated in the insulating case. [0003] A coil assembly includes a coil and an iron core. In the prior art, the coil is generally installed in the insulating base of the insulating housing from top to bottom, and the iron core is inserted into the coil. [0004] At present, polarity relays on the market generally use "I"-shaped magnetic circuit structures. One end of the iron core is a fulcrum, and the other end of the iron core rotates around the fulcrum. There are two defects in this magnetic circuit structure: (1) When used in monostable products, it is necessary to add a magnetic spacer between the contact surface of the armature and the iron core or coat an isolation layer on the contac...

AI Technical Summary

Problems solved by technology

There are two defects in this magnetic circuit structure: (1) When used in monostable products, it is necessary to add a magnetic spacer between the contact surface of the armature and the iron core or coat an isolation layer on the contact surface of the armature and the iron core , to prevent the resultant electromagnetic force from rising sharply, to ensure that the product can be released normally, which will lead to an increase in cost

[0005] (2) There is a fulcrum conversion during the movement of the armature, resulting in a discontinuous movement of the product

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