Magnetic holding relay having reverse force spring plate

Abstract

The invention discloses a magnetic latching relay provided with a counterforce reed, which comprises a magnetic circuit part, a contact part, a drive part and a counterforce reed. The magnetic circuit comprises two magnetic structures which are symmetrical essentially, and the magnetic structures consist of a static magnetizer component, a movable magnetizer component and coils. The contact part comprises a movable reed component and a static reed component; the drive part is a driving card that is connected between the movable magnetizer component of the magnetic circuit part and the static magnetizer of the contact part, causing the contacts of the relay to move with the magnetic circuit part and change positions in the states of disconnection and connection; the positions of the magnetic circuit part, the contact part and the drive part are fixed relative to the counterforce reed that is arranged at the position that in the state of disconnection of the contacts, auxiliary reactionforce is provided to promote the contacts to be closed. Through adding the counterforce reed to the magnetic latching relay and using that the counterforce reed is capable of providing appropriate auxiliary reaction force to assist the movable magnetizer to move and cause the contact to be closed in the reset state of the relay, thus causing the relay to be balance in absorbing counterforce and having more stable performance.

Description

A magnetic latching relay with counter force reed technical field The invention relates to a magnetic holding relay, in particular to a magnetic holding relay with a counter force reed. Background technique Existing magnetic latching relays usually include a magnetic circuit part, a contact part, a push part and a base, and the magnetic circuit part is generally composed of two substantially symmetrical magnetic circuits, including a stationary magnetizer part, a movable magnetizer part and a coil, The contact part includes a moving spring part and a static spring part, and the pushing part generally adopts a push card. For the magnetic latching relay with this structure, when the relay coil is supplied with a positive pulse voltage, the magnetic circuit part works, and the magnetic circuit part is linked to push the card, and the push card pushes the moving spring part to move, so that the contacts are in contact, and the relay operates. When the reverse pulse voltage is...

AI Technical Summary

Problems solved by technology

Since there is a certain contact pressure when the relay is in the action state, the contact pressure is used as an auxiliary reaction force to make the contacts open, and when the relay is in the reset state, there is no appropriate auxiliary reaction force to make the contacts close, so this Such a structure will cause the unbalanced suction and reaction force of the relay, which will make the product performance unstable

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