CN-224232605-U - Moving spring armature component and clapping relay

CN224232605UCN 224232605 UCN224232605 UCN 224232605UCN-224232605-U

Abstract

The utility model discloses a movable spring armature component and a clapping relay, which comprises an armature component and a movable spring component, wherein the movable spring component comprises a plurality of bridge type conducting plates, a first end and a second end of each bridge type conducting plate are respectively provided with a movable contact, the movable contacts at the first ends of the bridge type conducting plates form a parallel connection relationship, the movable contacts at the second ends of the bridge type conducting plates also form a parallel connection relationship, and the movable spring component also comprises at least one elastic plate which is respectively arranged corresponding to each bridge type conducting plate, and each bridge type conducting plate is respectively connected with the armature component through the corresponding elastic plate. Because the elastic sheets corresponding to each bridge type conducting sheet are mutually independent, a plurality of movable contacts forming a parallel connection relationship are not interfered with each other in the working process, and each movable contact can keep a stable contact state under the action of the corresponding elastic sheet, so that the contact resistance is kept stable, and the temperature rise characteristic and the electrical life of the relay are obviously improved.

Inventors

ZHANG DAYU
ZHU YIQING
TAN ZHONGHUA
LIN JINGHUANG
FU FEIFEI

Assignees

漳州宏发电声有限公司

Dates

Publication Date: 20260512
Application Date: 20250417

Claims (10)

1. The movable spring armature component comprises an armature component and a movable spring component, wherein the movable spring component comprises a plurality of bridge type conducting plates, the first end and the second end of each bridge type conducting plate are respectively provided with movable contacts, the movable contacts at the first ends of the bridge type conducting plates form a parallel connection relationship, and the movable contacts at the second ends of the bridge type conducting plates also form a parallel connection relationship.
2. The moving spring armature assembly of claim 1, wherein the armature assembly comprises an armature and an injection molded piece that are secured together, and wherein the spring tab is connected to the injection molded piece or a rigid connection tab provided on the injection molded piece.
3. The moving spring armature component of claim 2, wherein the spring piece is riveted or welded to the connecting piece, and the spring piece and the connecting piece are both made of metal.
4. The moving spring armature component of claim 2, wherein the armature, the connecting piece and the injection molding piece are formed into an integrated structure through insert injection molding, the armature and the connecting piece are not contacted, the armature component is L-shaped, and the free end of the connecting piece and the free end of the armature respectively correspond to two ends of the L-shape.
5. The moving spring armature assembly of claim 1, wherein the spring tab is located on a side of the corresponding bridge conductive tab facing away from the moving contact, the spring tab being connected to the first and/or second ends of the corresponding bridge conductive tab.
6. The moving spring armature assembly of claim 5, wherein the spring plate is synchronously fixed with the first and/or second ends of the corresponding bridge type conductive plate and the moving contact thereon by a co-location riveting process.
7. The moving spring armature assembly of claim 1, wherein the first ends of the plurality of bridge conductive strips are disposed adjacent and the second ends of the plurality of bridge conductive strips are disposed adjacent, and wherein the moving contacts on each of the bridge conductive strips are collinear and coplanar.
8. The moving spring armature assembly of any one of claims 1-7, wherein the plurality of bridge conductive strips comprises a first bridge conductive strip and at least one second bridge conductive strip, the first bridge conductive strip being disposed between a first end and a second end of the second bridge conductive strip, the first end and the second end of the second bridge conductive strip each facing away from or toward a side of the armature assembly, the first end and the second end of the first bridge conductive strip being connected to the armature assembly by a same first spring strip, the first end and the second end of the second bridge conductive strip each being connected to the armature assembly by a second spring strip.
9. The moving spring armature component of claim 8, wherein the first spring piece is of an axisymmetric structure, the two second spring pieces on the second bridge type conductive piece are arranged in a mirror symmetry mode, the first end and the second end of the second bridge type conductive piece face to one side far away from the armature component, and a relief groove is formed in the second bridge type conductive piece corresponding to the first spring piece.
10. A clapping relay comprises two groups of static spring parts, wherein each group of static spring parts respectively comprises a static spring plate and a plurality of static contacts arranged on the static spring plate, and the clapping relay is characterized by further comprising a movable spring armature component according to any one of claims 1-9, the movable contacts at the first ends of a plurality of bridge type conducting plates are in one-to-one corresponding fit with the plurality of static contacts of one group of static spring parts, and the movable contacts at the second ends of the plurality of bridge type conducting plates are in one-to-one corresponding fit with the plurality of static contacts of the other group of static spring parts.

Description

Moving spring armature component and clapping relay Technical Field The utility model relates to the technical field of relays, in particular to a movable spring armature component and a clapping relay. Background With the continuous rise of the power level of the photovoltaic inverter, the working current required to be carried by the relay has broken through the hundred ampere level. Under the working condition of high current, the loop impedance of the relay contact system must be kept to be minimum and highly stable, which puts severe demands on the contact structure design. The current mainstream solution adopts a multi-group bridge contact parallel structure, and the overall impedance is reduced through the shunt effect. In the current adopted multi-group bridge type contact parallel structure, each group of movable contacts respectively provides an over-stroke and a contact pressure by a plurality of bifurcation sheets of the same conducting sheet, and the design has the defect that in the load switching process, the plurality of movable contacts forming a parallel relation cannot realize simultaneous contact due to asynchronous morphology changes of the movable contacts. When part of the movable contacts are contacted first, the deformation of the corresponding forked pieces can interfere the pressure distribution of other forked pieces, so that the contact pressure of the movable contacts contacted later is reduced, and the contact resistance is increased. The method not only causes local overheating, but also causes unstable overall temperature rise characteristic, and finally obviously reduces the electrical durability of the relay, and seriously influences the reliability performance of the relay in a photovoltaic system. Disclosure of utility model Aiming at the technical problems in the prior art, the utility model provides a movable spring armature component and a clapping relay, which improve the temperature rise stability of the whole contact system through a structure. The technical scheme includes that the movable spring armature component comprises an armature component and a movable spring component, wherein the movable spring component comprises a plurality of bridge type conducting plates, movable contacts are respectively arranged at a first end and a second end of each bridge type conducting plate, the movable contacts at the first ends of the bridge type conducting plates form a parallel connection relationship, the movable contacts at the second ends of the bridge type conducting plates also form a parallel connection relationship, and the movable spring component further comprises at least one elastic plate which is respectively arranged corresponding to each bridge type conducting plate, and each bridge type conducting plate is respectively connected to the armature component through the corresponding elastic plate. In a preferred embodiment, the armature assembly comprises an armature and an injection-molded part that are fixed together, and the elastic piece is connected to the injection-molded part or a rigid connecting piece provided on the injection-molded part. In a preferred embodiment, the elastic sheet and the connecting sheet are riveted or welded together, and the elastic sheet and the connecting sheet are both made of metal materials. In a preferred embodiment, the armature, the connecting piece and the injection molding piece are formed into an integral structure through insert injection molding, the armature is not contacted with the connecting piece, the armature component is L-shaped, and the free end of the connecting piece and the free end of the armature respectively correspond to two ends of the L-shape. In a preferred embodiment, the elastic sheet is located at a side of the corresponding bridge conductive sheet opposite to the movable contact, and the elastic sheet is connected with the first end and/or the second end of the corresponding bridge conductive sheet. In a preferred embodiment, the elastic sheet and the first end and/or the second end of the corresponding bridge type conductive sheet and the movable contact thereon are synchronously fixed through a co-location riveting process. In a preferred embodiment, the first ends of the plurality of bridging conductive plates are disposed adjacent to each other and the second ends of the plurality of bridging conductive plates are disposed adjacent to each other, and the movable contacts on each bridging conductive plate are collinear and coplanar. In a preferred embodiment, the plurality of bridge conducting strips includes a first bridge conducting strip and at least one second bridge conducting strip, the first bridge conducting strip is disposed between a first end and a second end of the second bridge conducting strip, the first end and the second end of the second bridge conducting strip face a side far away from or near the armature assembly, the first end and the second end of the first bridge cond