Non-counterforce electromagnetic relay

Abstract

The invention discloses a non-counterforce electromagnetic relay. The non-counterforce electromagnetic relay comprises a magnetic circuit part, a base, a static reed assembly, a push clamping part and a housing. The magnetic circuit part includes an armature part, a coil and a yoke. The push clamping part includes a push clamp and a contact sheet part installed on the push clamp. The contact sheet part includes a contact sheet installed on the push clamp. The armature part is movably clamped with the push clamp. The magnetic circuit part generates magnetic forces to drive the push clamp to move back and forth no matter a relay is in a setting state or a resetting state. A clamping hook is arranged at the bottom of the push clamp. A first clamping groove is arranged in the base correspondingly. The push clamp is clamped on the base through the cooperation between the first clamping groove and the clamping hook. The non-counterforce electromagnetic relay not only has the advantages of simple structure, stable performance and low cost, but also can guarantee the smoothness and stability of the high-speed motion of the push clamp on the base and guarantee that the contact sheet cannot slip off from the push clamp in the process of the high-speed motion of the push clamp.

Description

technical field [0001] The invention relates to an electromagnetic relay, in particular to an electromagnetic relay in which a contact piece is installed on a push card through a spring to form no reaction force during action. Background technique [0002] The action and release of the existing electromagnetic relay (magnetic latching relay is called: reset) is generally realized by the cooperation of the suction force and the reaction force. figure 1 Shown is a schematic structural diagram of a typical electromagnetic relay at present, which is composed of a magnetic circuit part, a base part and a push card part; wherein, the base part includes a base 16', a normally open static spring combination 17A', a normally closed static spring combination 17B', normally open moving spring combination 18A', normally closed moving spring combination 18B' and restoring reed 20'; the magnetic circuit part is composed of coil 12', yoke 13' and armature combination 14'; armature combinat...

AI Technical Summary

Problems solved by technology

[0006] 2. Since this structure needs to be provided by structural parts, especially metal parts (moving reed, restoring reed, etc.), the structure is relatively complicated, and because the moving reed, restoring reed, etc. Deformation is easy to occur during the process, which affects the stability of the reaction force of the relay, resulting in poor product performance consistency of the relay after assembly. Variables are adjusted to obtain a more consistent reaction force characteristic curve; and the complex structure increases the difficulty of production and assembly, and increases the production cost of the relay

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