CN219642746U - Auxiliary contact part and relay - Google Patents

Abstract

The utility model discloses an auxiliary contact part and a relay, wherein the auxiliary contact part comprises an auxiliary movable spring component, an auxiliary static spring component and a first insulating piece, the auxiliary movable spring component comprises an auxiliary movable conducting sheet and an auxiliary movable contact, and the auxiliary movable contact is arranged on the auxiliary movable conducting sheet; the auxiliary static spring component comprises an auxiliary static conductive sheet and an auxiliary static contact, and the auxiliary static contact is arranged on the auxiliary static conductive sheet; the first insulating member is fixedly connected to the auxiliary moving conductive sheet and the auxiliary static conductive sheet, so that the auxiliary moving spring assembly, the auxiliary static spring assembly and the first insulating member form an integral piece. The first insulating member is fixedly connected to the auxiliary moving conductive sheet and the auxiliary static conductive sheet such that the auxiliary contact portion forms an independent module. The auxiliary contact part can be directly installed in the relay as an independent module, and most parts can be shared under the condition of maintaining the assembly process of the original relay unchanged.

Description

Auxiliary contact part and relay

Technical Field

The utility model relates to the technical field of electronic control devices, in particular to an auxiliary contact part and a relay comprising the auxiliary contact part.

Background

A relay is an electronic control device having a control system (also called an input loop) and a controlled system (also called an output loop), which is generally used in an automatic control circuit. A relay is in fact an "automatic switch" that uses a smaller current to control a larger current. Therefore, the circuit plays roles of automatic adjustment, safety protection, circuit switching and the like.

In the related art, a relay is generally provided with an auxiliary contact portion including an auxiliary moving spring and an auxiliary stationary spring, and an open/close state of a main contact is monitored by contact or separation of the auxiliary moving spring and the auxiliary stationary spring. However, the structural design of the auxiliary contact portion of the related art has a problem of inconvenient installation, resulting in low installation efficiency.

Disclosure of Invention

The embodiment of the utility model provides an auxiliary contact part and a relay, which solve the problems of inconvenient installation and lower installation efficiency in the prior art by designing the auxiliary contact part as an independent module.

The auxiliary contact part of the embodiment of the utility model is applied to a relay and comprises:

the auxiliary moving spring assembly comprises an auxiliary moving conducting plate and an auxiliary moving contact, and the auxiliary moving contact is arranged on the auxiliary moving conducting plate;

the auxiliary static spring assembly comprises an auxiliary static conductive sheet and an auxiliary static contact, and the auxiliary static contact is arranged on the auxiliary static conductive sheet; and

the first insulating piece is fixedly connected with the auxiliary movable conducting piece and the auxiliary static conducting piece, so that the auxiliary movable spring assembly, the auxiliary static spring assembly and the first insulating piece form an integral piece.

According to some embodiments of the utility model, the auxiliary contact portion further comprises:

the mounting seat is fixedly connected with the auxiliary movable conducting strip and the auxiliary static conducting strip, so that the auxiliary movable spring, the auxiliary static spring, the first insulating piece and the mounting seat form an integral piece.

According to some embodiments of the utility model, the first insulating member and the mounting seat are spaced apart along a length direction of the auxiliary moving conductive sheet or the auxiliary static conductive sheet.

According to some embodiments of the utility model, the mounting base is connected to the auxiliary moving conductive sheet and the auxiliary static conductive sheet by injection molding.

According to some embodiments of the utility model, the first insulating member is connected to the auxiliary moving conductive sheet and the auxiliary static conductive sheet by injection molding.

According to some embodiments of the utility model, the first insulator comprises a first connection structure for connection with a second connection structure of a yoke of the relay.

According to some embodiments of the utility model, the first connection structure comprises a rivet hole, the wall of which comprises a first section and a second section in the axial direction of the rivet hole, the wall of the second section extending from the first section in the axial and radial directions of the rivet hole, in a direction away from the axis of the rivet hole.

According to some embodiments of the utility model, the bore wall of the first section is parallel to the axis of the rivet bore.

According to some embodiments of the utility model, the walls of the holes of the first section enclose a cylindrical shape, and the walls of the holes of the second section enclose a truncated cone shape.

According to some embodiments of the utility model, the auxiliary moving conductive sheet is provided with a hollow structure in a region where the auxiliary moving contact is provided.

According to some embodiments of the utility model, the hollow structure is wound around the periphery of the auxiliary movable contact.

According to some embodiments of the utility model, the auxiliary moving conductive sheet includes:

the first insulating piece is fixedly connected to the fixing support and the auxiliary static conductive sheet; and

the auxiliary movable reed is connected to the fixed support, and the auxiliary movable contact is arranged on the auxiliary movable reed.

According to some embodiments of the utility model, the auxiliary static spring assembly and the auxiliary dynamic spring assembly are normally open or normally closed.

According to some embodiments of the utility model, the auxiliary static spring assembly comprises a first auxiliary static spring assembly and a second auxiliary static spring assembly, each comprising an auxiliary static conductive tab and an auxiliary static contact;

the auxiliary movable contact is positioned between the two auxiliary stationary contacts.

The relay of the embodiment of the utility model comprises the auxiliary contact part.

According to some embodiments of the utility model, the relay further comprises:

the auxiliary contact part is arranged on the base;

a magnetic circuit portion provided on the base, the magnetic circuit portion including a yoke and a coil assembly; the yoke is made of a metal material; the second connecting structure of the yoke comprises a rivet joint, wherein the rivet joint comprises an insertion part and an expansion part, the insertion part is inserted into the first section of the first insulating piece, the expansion part extends from the insertion part along the axial direction and the radial direction of a riveting hole of the first insulating piece in a direction away from the axis of the riveting hole, and the expansion part is abutted with the hole wall of the second section of the riveting hole;

an armature assembly rotatably coupled to the yoke; the auxiliary moving spring assembly is linked with the armature assembly; and

and the main contact part comprises a driving spring and a main static spring, the driving spring is connected with the armature assembly, and the main static spring is arranged on the base.

According to some embodiments of the utility model, the insert is in clearance fit with the bore wall of the first section.

According to some embodiments of the utility model, the yoke comprises a first side surface facing away from the coil assembly and a second side surface facing towards the coil assembly, the rivet is arranged on the first side surface in a protruding mode, and a groove is arranged on the second side surface at a position corresponding to the rivet.

According to some embodiments of the utility model, the armature assembly comprises:

an armature rotatably coupled to the yoke;

the second insulating piece is fixedly connected with the armature and is used for pushing the auxiliary moving spring assembly; the active spring is connected to the second insulator.

According to some embodiments of the utility model, the mounting base of the auxiliary contact portion is connected to the base.

One embodiment of the above utility model has at least the following advantages or benefits:

according to the auxiliary contact part provided by the embodiment of the utility model, the first insulating piece is fixedly connected with the auxiliary movable conducting piece and the auxiliary static conducting piece, and the auxiliary movable spring component and the auxiliary static spring component can be connected into a whole piece, so that the auxiliary contact part forms an independent module. After the assembly of other parts such as a base, a magnetic circuit part, an armature assembly, a main contact part and the like of the relay is completed, the auxiliary contact part can be directly installed in the relay as an independent module, so that most parts can be shared under the condition of maintaining the assembly process of the original relay unchanged.

In addition, the auxiliary movable spring component, the auxiliary static spring component and the first insulating piece adopt an integral injection molding connection mode, so that the auxiliary movable conductive sheet and the auxiliary static conductive sheet can be prevented from bending and deforming, the consistency of the auxiliary movable conductive sheet and the auxiliary static conductive sheet can be ensured, and the precision of the contact is improved.

Drawings

Fig. 1 shows a perspective view of a relay according to an embodiment of the utility model from one perspective, with the cover omitted.

Fig. 2 shows a perspective view of the relay of an embodiment of the present utility model from another perspective, with the housing omitted.

Fig. 3 shows a perspective view of the relay of an embodiment of the present utility model from a further perspective, with the housing omitted.

Fig. 4 shows an exploded view of a relay according to an embodiment of the present utility model, wherein the housing is omitted.

Fig. 5 shows a cross-sectional view along A-A in fig. 3.

FIG. 6 is an enlarged view of a portion of the rivet joint of FIG. 5, shown undeformed at X.

Fig. 7 is an enlarged view of a portion of the rivet joint of fig. 5 after deformation.

Fig. 8 shows an exploded view of the auxiliary contact portion.

Wherein reference numerals are as follows:

10. base seat

20. Magnetic circuit part

210. Yoke iron

211. First side plate

212. Second side plate

213. A first protruding part

214. Second protruding part

215. First hook

216. Rivet joint

217. Insertion part

218. Expansion part

219. Groove

220. Coil rack

230. Enamelled wire

240. Iron core

250. Coil pin

30. Armature assembly

330. Notch

360. Second hook

370. Armature iron

380. Second insulating member

381. Pushing part

390. Adapter piece

40. Main contact portion

410. Active spring

411. Active reed

411a, first cross arm

411b, vertical arm

412. Active contact

420. Main static spring

420a, first main static spring

420b, second main static spring

421. Main static reed

422. Main stationary contact

50. Reset spring

60. Auxiliary contact portion

610. Auxiliary moving spring assembly

611. Auxiliary moving conductive sheet

611a, hollow structure

611b, fixing support

611c, auxiliary movable reed

612. Auxiliary movable contact

620. Auxiliary static spring assembly

620a, a first auxiliary static spring assembly

620b, a second auxiliary static spring assembly

621. Auxiliary static conductive sheet

622. Auxiliary stationary contact

630. First insulating member

631. Riveting hole

632. First section

633. Second section

640. Mounting base

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus detailed descriptions thereof will be omitted.

As shown in fig. 1 to 4, the relay of the embodiment of the present utility model includes a base 10, a magnetic circuit portion 20, an armature assembly 30, a main contact portion 40, and a return spring 50, the magnetic circuit portion 20 and a main static spring 420 of the main contact portion 40 are disposed on the base 10, and the armature assembly 30 is movably connected to the magnetic circuit portion 20. The return spring 50 is connected at both ends to the magnetic circuit portion 20 and the armature assembly 30 for providing an elastic force to the armature assembly 30.

It will be understood that the terms "comprising," "including," and "having," and any variations thereof, are intended to cover non-exclusive inclusions in the embodiments of the utility model. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may alternatively include other steps or elements not listed or inherent to such process, method, article, or apparatus.

The relay may further include a housing (not shown) provided on the base 10 and enclosing a receiving space with the base 10 for receiving the magnetic circuit portion 20, the armature assembly 30, the main contact portion 40, and the return spring 50. The housing may be transparent or opaque. The material of the outer cover may be made of a resin material, but is not limited thereto.

The magnetic circuit portion 20 includes a yoke 210, a bobbin 220, an enamel wire 230, an iron core 240, and two coil pins 250. The yoke 210 is substantially L-shaped and includes a first side plate 211 and a second side plate 212, the first side plate 211 and the second side plate 212 being perpendicular to each other. The enamel wire 230 is wound around the outer circumference of the bobbin 220, and the enamel wire 230 and the bobbin 220 are received in a space defined by the first and second side plates 211 and 212 of the yoke 210. The core 240 is penetrated in the center hole of the bobbin 220. The enamel wire 230 and the bobbin 220 constitute a coil assembly.

In the embodiment of the present utility model, the coil former 220 and the enamel wire 230 are accommodated in a space surrounded by the first side plate 211 and the second side plate 212 in a horizontal posture, that is, an axis of a central hole of the coil former 220 is parallel to the first side plate 211. One end of the core 240 is connected to the second side plate 212, and the other end of the core 240 is a free end for attracting the armature assembly 30 when the coil is energized.

Of course, in other embodiments, the coil former 220 and the enamel wire 230 may be accommodated in a space surrounded by the first side plate 211 and the second side plate 212 in a vertical posture, that is, an axis of a central hole of the coil former 220 is parallel to the second side plate 212.

Two coil pins 250 are electrically connected to both ends of the enamel wire 230, respectively. Two coil pins 250 may be inserted on the base 10, with portions of each coil pin 250 extending out of the base 10 for connection with the positive and negative poles of an external circuit.

The main contact portion 40 includes a main spring 410 and a main stationary spring 420, the main stationary spring 420 being fixedly disposed on the base 10, the main spring 410 being connected to the armature assembly 30 and being movable with the armature assembly 30 with respect to the magnetic circuit portion 20. The active spring 410 includes an active reed 411 and two active contacts 412, and the main static spring 420 includes a first main static spring 420a and a second main static spring 420b, where the first main static spring 420a and the second main static spring 420b are fixedly disposed on the base 10. The first main stationary spring 420a and the second main stationary spring 420b each include a main stationary spring 421 and a main stationary contact 422, and the two main stationary contacts 422 correspond to the positions of the two active contacts 412. A portion of each main static reed 421 protrudes from the base 10 for connection with the positive and negative poles of a load.

It can be appreciated that the active contact 412 and the active reed 411 may be in a separate structure or an integral structure; the main stationary contact 422 and the main stationary reed 421 may be in a separate structure or an integral structure.

As shown in fig. 1, the active leaf 411 includes a first cross arm 411a and a vertical arm 411b. Two ends of the first cross arm 411a are respectively provided with an active contact 412, one end of the vertical arm 411b is connected to the middle position of the first cross arm 411a, and the other end of the vertical arm 411b is connected with the armature assembly 30.

The first cross arm 411a and the vertical arm 411b may be in an integral structure or a split structure.

The active reed 411 further includes a second cross arm (hidden from view) that is connected to the other end of the vertical arm 411b. And, the second cross arm is connected to the armature assembly 30. In the embodiment of the present utility model, the first cross arm 411a, the vertical arm 411b and the second cross arm may form an i-shaped structure, but not limited thereto.

The armature assembly 30 includes an armature 370 and a second insulator 380. The armature 370 is rotatably coupled to the yoke 210 and the second insulator 380 is fixedly coupled to the armature 370. In the embodiment of the utility model, the second insulating member 380 is riveted with the armature 370, but not limited thereto. The second insulating member 380 may be made of an insulating material, such as plastic, but is not limited thereto. The driving spring 410 is connected to the second insulating member 380, and when the armature 370 moves, the driving spring 410 is driven to move by the second insulating member 380.

In one embodiment, the active reed 411 is coupled to the second insulator 380 via the adapter 390. For example, the adapter 390 may be made of an insulating material, such as plastic. The second cross arm of the active reed 411 is integrally injection-molded with the adaptor 390, and the adaptor 390 is riveted with the second insulating member 380.

In the embodiment of the present utility model, the armature 370 is connected to a side surface of the second insulating member 380 facing the magnetic circuit portion 20, and the adapter member 390 and the active spring 411 are connected to the other side surface of the second insulating member 380 facing away from the magnetic circuit portion 20. In this way, the active spring 411 and the armature 370 are insulated by the second insulating member 380, so that the armature 370 is prevented from being broken down when a large current flows through the active spring 411.

The armature 370 has a plate-like structure and is rotatably connected to the yoke 210 of the magnetic circuit portion 20. In the embodiment of the present utility model, the armature 370 is rotatably coupled to the first side plate 211 of the yoke 210, and both ends of the return spring 50 are coupled to the yoke 210 and the armature 370 for providing an elastic force to the armature 370.

In the embodiment of the present utility model, after the enameled wire 230 is energized, the iron core 240 attracts the armature 370 to move, and the armature 370 drives the driving spring 410 to move, so that the two driving contacts 412 are respectively contacted with the two main stationary contacts 422. After the enamel wire 230 is powered off, the armature 370 moves in the opposite direction by the elastic force of the return spring 50 to separate the two active contacts 412 from the two main stationary contacts 422.

That is, the armature 370 can perform a clapping motion with respect to the magnetic circuit portion 20 by the on-off of the enamel wire 230 and the action of the return spring 50.

As an example, the return spring 50 may be a tension spring, but is not limited thereto. Yoke 210 further includes a first hook 215 and armature 370 includes a second hook 360, one end of return spring 50 being hooked to first hook 215 and the other end of return spring 50 being hooked to second hook 360.

As shown in fig. 4, the outer edge of the yoke 210 is provided with two protruding portions, a first protruding portion 213 and a second protruding portion 214, respectively. In the embodiment of the utility model, the first protruding portion 213 and the second protruding portion 214 are disposed on the first side plate 211.

The armature 370 has two notches 330 recessed in its outer periphery. The first and second protrusions 213 and 214 of the yoke 210 pass through the two notches 330, respectively. The first protrusion 213 forms a fulcrum with the upper edge of one of the notches 330, and the second protrusion 214 forms another fulcrum with the upper edge of the other notch 330. When the enameled wire 230 is powered off, the armature 370 is attracted by the iron core 240 and can perform clapping motion relative to the yoke 210 around two fulcrums.

With continued reference to fig. 1-4, the relay of the present embodiment further includes an auxiliary contact portion 60, wherein the auxiliary contact portion 60 is capable of being connected to an external monitoring circuit for monitoring the contact or separation state of the active spring 410 and the main static spring 420.

The auxiliary contact portion 60 includes an auxiliary moving spring assembly 610, an auxiliary static spring assembly 620, and a first insulating member 630. The auxiliary moving spring assembly 610 is linked to the armature assembly 30, and when the armature assembly 30 moves relative to the magnetic circuit portion 20, the armature assembly 30 can drive the auxiliary moving spring assembly 610 to move so that the auxiliary moving spring assembly 610 contacts or separates from the auxiliary stationary spring assembly 620.

In the embodiment of the utility model, the second insulating member 380 includes a pushing portion 381 for pushing the auxiliary moving spring assembly 610. When the enamel wire 230 is energized, the armature assembly 30 is tilted upward, the pushing portion 381 can push the auxiliary moving spring assembly 610 to move so that the auxiliary moving spring assembly 610 is contacted with or separated from the auxiliary static spring assembly 620.

As shown in fig. 8, the auxiliary moving spring assembly 610 includes an auxiliary moving conductive piece 611 and an auxiliary moving contact 612. The auxiliary moving conductive piece 611 is fixed on the base 10, and the auxiliary moving contact 612 is disposed on the auxiliary moving conductive piece 611. The auxiliary static spring assembly 620 includes an auxiliary static conductive sheet 621 and an auxiliary static contact 622, the auxiliary static conductive sheet 621 is fixedly arranged on the base 10, and the auxiliary static contact 622 is arranged on the auxiliary static conductive sheet 621. The portions of the auxiliary moving conductive sheet 611 and the auxiliary static conductive sheet 621 extending out of the base 10 are used for connection to an external circuit.

It can be appreciated that the auxiliary movable contact 612 and the auxiliary movable conductive piece 611 may be in a split structure or an integral structure; the auxiliary stationary contact 622 and the auxiliary stationary conductive sheet 621 may be separate structures or may be an integral structure.

The first insulating member 630 is connected to the auxiliary moving conductive piece 611 of the auxiliary moving spring assembly 610 and the auxiliary static conductive piece 621 of the auxiliary static spring assembly 620 by injection molding such that the auxiliary moving spring assembly 610, the auxiliary static spring assembly 620 and the first insulating member 630 form one piece. The first insulating member 630 is made of an insulating material and is connected to the yoke 210. Insulating materials include, but are not limited to, plastics. In the embodiment of the present utility model, the first insulating member 630 is connected to the second side plate 212 of the yoke 210. The auxiliary moving spring assembly 610 and the auxiliary stationary spring assembly 620 may be connected as one integral piece by the first insulating member 630 such that the auxiliary contact portion 60 forms a separate module. After the assembly of the other components of the base 10, the magnetic circuit portion 20, the armature assembly 30, the main contact portion 40, etc. of the relay is completed, the auxiliary contact portion 60 can be directly installed in the relay as a separate module, so that most of the components can be shared while maintaining the assembly process of the original relay. In addition, the auxiliary moving spring assembly 610, the auxiliary static spring assembly 620 and the first insulating member 630 are integrally injection-molded, so that the auxiliary moving conductive sheet 611 and the auxiliary static conductive sheet 621 can be prevented from bending and deforming, the consistency of the auxiliary moving conductive sheet 611 and the auxiliary static conductive sheet 621 can be ensured, and the precision of the contact is improved.

The auxiliary contact portion 60 further includes a mount 640, and the mount 640 may be made of a plastic material. The mounting base 640 is connected to the auxiliary moving conductive piece 611 of the auxiliary moving spring assembly 610 and the auxiliary static conductive piece 621 of the auxiliary static spring assembly 620 by injection molding, so that the auxiliary moving spring assembly 610, the auxiliary static spring assembly 620, the first insulating member 630 and the mounting base 640 form an integral piece. The mounting base 640 is mounted on the base 10, for example, the mounting base 640 is connected with the base 10 through an interference fit structure, and the interference fit structure may include a connection post and a connection hole, wherein the connection post is inserted into the connection hole. The auxiliary moving conductive piece 611 is connected to the base 10 through a mounting base 640. The auxiliary static spring 621 is connected to the base 10 through a mount 640.

In the embodiment of the present utility model, the auxiliary moving conductive sheet 611, the auxiliary static conductive sheet 621, the first insulating member 630, and the mounting base 640 are connected into a whole by injection molding.

Along the length direction D1 of the auxiliary moving conductive sheet 611 or the auxiliary static conductive sheet 621, the first insulating member 630 and the mounting seat 640 are disposed at intervals, so that the stability of connection between the auxiliary moving conductive sheet 611 and the auxiliary static conductive sheet 621 can be improved, and the accuracy of the contact can be improved.

Of course, it is understood that the auxiliary contact portion 60 may be connected to the base 10 not by the mounting seat 640, but the base 10 may be provided with a through hole corresponding to the auxiliary moving conductive piece 611 and the auxiliary static conductive piece 621, and the auxiliary moving conductive piece 611 and the auxiliary static conductive piece 621 may be disposed in the through hole.

The first insulating member 630 may be connected to the auxiliary movable conductive sheet 611 and the auxiliary static spring sheet 621 by other fixing connection methods such as clamping, bonding, etc. The connection mode of the mounting seat 640, the auxiliary movable conductive sheet 611 and the auxiliary static spring sheet 621 can be other fixed connection modes such as clamping connection, bonding connection and the like.

As shown in fig. 5 to 7, the first insulating member 630 includes a first connection structure for connecting with the second connection structure of the yoke 210. As an example, the first connection structure includes a rivet hole 631, and the rivet hole 631 penetrates both opposite sides of the first insulating member 630. In the axial direction D2 of the staking hole 631, the wall of the staking hole 631 includes a first segment 632 and a second segment 633, with the wall of the second segment 633 extending from the first segment 632 in the axial and radial directions of the staking hole 631 in a direction away from the axis of the staking hole 631. In other words, the second section 633 of the staking hole 631 has an outwardly flared flare shape.

The second connection structure of the yoke 210 includes a rivet head 216, the rivet head 216 includes an insertion portion 217 and an expansion portion 218, the insertion portion 217 is inserted into the first section 632, the expansion portion extends from the insertion portion 217218 in an axial direction and a radial direction of the rivet hole 631 in a direction away from an axis of the rivet hole 631, and the expansion portion 218 abuts against a wall of the second section 633. In the embodiment of the utility model, the rivet 216 is disposed on a side surface of the second side plate 212 of the yoke 210 facing away from the coil frame 220.

By caulking and fixing the first insulator 630 of the auxiliary contact portion 60 to the yoke 210, on the one hand, a movement error caused by a gap between the auxiliary contact portion 60 and the yoke 210 can be eliminated, and the reliability of the auxiliary contact can be improved; on the other hand, the rivet joint 216 is inserted into the rivet hole 631 to realize the rivet joint, so that the fixed connection manner between the first insulating member 630 and the yoke 210 does not need to add additional parts; in yet another aspect, the hole wall of the second section 633 of the rivet hole 631 extends obliquely along the axial direction and the radial direction of the rivet hole 631 in a direction away from the axis of the rivet hole 631, so that the hole wall of the second section 633 can provide sufficient deformation space for the expansion portion 218 formed after the rivet joint 216 is deformed under pressure, so as to avoid the expansion portion 218 from propping up the first insulating member 630 during expansion deformation.

The assembling process of the auxiliary contact portion 60 and the yoke 210 is described below with reference to fig. 6 and 7. As shown in fig. 6, the rivet 216 is inserted into the rivet hole 631 from a side of the first segment 632 of the rivet hole 631 facing away from the second segment 633 until the first insulator 630 abuts the yoke 210. Then, the tool is used to press against the side of the yoke 210 facing away from the rivet joint 216. As shown in fig. 7, the rivet needle is inserted into the rivet hole 631 from the side of the second section 633 of the rivet hole 631 facing away from the first section 632, and presses the head of the rivet head 216, so that the head of the rivet head 216 deforms, and the head of the rivet head 216 gradually expands under the extrusion of the rivet needle until the head abuts against the hole wall of the second section 633, and the deformed portion of the rivet head 216 is the expansion portion 218.

With continued reference to fig. 6 and 7, the bore wall of the first segment 632 is parallel to the axis of the staking bore 631. That is, in the present embodiment, the first segment 632 is a straight wall segment and the second segment 633 is an inclined wall segment.

Of course, in other embodiments, the hole wall of the first section 632 may not be parallel to the axis of the rivet hole 631, that is, the first section 632 and the second section 633 are both inclined wall sections.

The circumferential shape of the staking holes 631 may have various embodiments, such as circular, polygonal, etc. When the circumferential shape of the staking hole 631 is circular, the hole wall of the first segment 632 may enclose a cylinder shape and the hole wall of the second segment 633 may enclose a circular truncated cone shape.

Correspondingly, the shape of the rivet head 216 is adapted to the shape of the rivet hole 631. For example, when the rivet hole 631 is circular, the rivet head 216 is a cylinder.

The insert 217 is a clearance fit with the bore wall of the first section 632. The expansion portion 218 has a ring-like structure.

The yoke 210 includes a first side surface facing away from the coil assembly and a second side surface facing toward the coil assembly, the rivet 216 is protruding from the first side surface, and a groove 219 is formed in a position of the second side surface corresponding to the rivet 216. In the present embodiment, the rivet 216 may be formed by punching the yoke 210 in the thickness direction of the yoke 210, so that the assembly of the auxiliary contact portion 60 with the yoke 210 is completed without adding additional parts.

It should be noted that, the auxiliary static spring assembly 620 and the auxiliary dynamic spring assembly 610 according to the embodiment of the utility model may be normally opened, normally closed or converted.

When normally open, one auxiliary moving spring assembly 610 corresponds to one auxiliary static spring assembly 620. When the enameled wire of the relay is not electrified, the auxiliary movable contact 612 is not in contact with the auxiliary fixed contact 622, and after the enameled wire is electrified, the auxiliary movable contact 612 is in contact with the auxiliary fixed contact 622.

When normally closed, one auxiliary moving spring assembly 610 corresponds to one auxiliary static spring assembly 620. When the enameled wire of the relay is not electrified, the auxiliary movable contact 612 is in contact with the auxiliary fixed contact 622, and after the enameled wire is electrified, the auxiliary movable contact 612 is disconnected from the auxiliary fixed contact 622.

When switched, the auxiliary static spring assembly 620 includes a first auxiliary static spring assembly 620a and a second auxiliary static spring assembly 620b, and the first auxiliary static spring assembly 620a and the second auxiliary static spring assembly 620b each include an auxiliary static conductive tab 621 and an auxiliary static contact 622. One auxiliary moving spring assembly 610 corresponds to two auxiliary stationary spring assemblies 620. The auxiliary moving contact 612 is located between two auxiliary stationary contacts 622. When the enameled wire of the relay is not energized, the auxiliary movable contact 612 is in contact with one of the auxiliary stationary contacts 622. When the enameled wire of the relay is electrified, the auxiliary movable contact 612 is contacted with the other auxiliary fixed contact 622.

The auxiliary contact portion 60 of the present embodiment is compatible with normally open, normally closed, and transition to meet different needs of the user.

The auxiliary movable conductive sheet 611 is provided with a hollow structure 611a in the area where the auxiliary movable contact 612 is provided. By providing the hollowed-out structure 611a around the auxiliary moving contact 612, the flexibility of the area where the auxiliary moving contact 612 is provided by the auxiliary moving conductive piece 611 can be improved. In this way, the stress generated by the greater rigidity of the auxiliary moving conductive piece 611 during the auxiliary contact opening and closing process can be eliminated, which is conducive to the auxiliary contact opening and closing.

As an example, the hollow structure 611a may be U-shaped and is wound around the outer periphery of the auxiliary movable contact 612, but not limited thereto.

With continued reference to fig. 8, the auxiliary movable conductive piece 611 includes an auxiliary movable spring 611c and a fixed support 611b, where the auxiliary movable spring 611c is separately connected to the fixed support 611b, for example, the auxiliary movable spring 611c is riveted to the fixed support 611b, but not limited thereto. The auxiliary movable contact 612 and the hollow structure 611a are disposed on the auxiliary movable spring 611 c. The fixing bracket 611b is connected to the first insulating member 630 and the mount 640.

As an example, the fixing support 611b may have an L shape, but is not limited thereto.

The auxiliary movable reed 611c is made of a metal elastic material so that when the pushing portion 381 of the second insulating member 380 pushes the auxiliary movable reed 611c, the auxiliary movable reed 611c is more easily tilted upward until the auxiliary movable contact 612 comes into contact with the auxiliary stationary contact 622.

It will be appreciated that the various embodiments/implementations provided by the utility model may be combined with one another without conflict and are not illustrated here.

In the inventive embodiments, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more, unless expressly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the embodiments of the utility model will be understood by those skilled in the art according to the specific circumstances.

In the description of the embodiments of the utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the utility model and to simplify the description, and do not indicate or imply that the devices or units referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the utility model.

In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the utility model and is not intended to limit the embodiment of the utility model, and various modifications and variations can be made to the embodiment of the utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present utility model should be included in the protection scope of the embodiments of the present utility model.

Claims (20)

1. An auxiliary contact portion applied to a relay, the auxiliary contact portion comprising:

the auxiliary moving spring assembly comprises an auxiliary moving conducting plate and an auxiliary moving contact, and the auxiliary moving contact is arranged on the auxiliary moving conducting plate;

the auxiliary static spring assembly comprises an auxiliary static conductive sheet and an auxiliary static contact, and the auxiliary static contact is arranged on the auxiliary static conductive sheet; and

the first insulating piece is fixedly connected with the auxiliary movable conducting piece and the auxiliary static conducting piece, so that the auxiliary movable spring assembly, the auxiliary static spring assembly and the first insulating piece form an integral piece.

2. The auxiliary contact portion according to claim 1, further comprising:

the mounting seat is fixedly connected with the auxiliary movable conducting strip and the auxiliary static conducting strip, so that the auxiliary movable spring, the auxiliary static spring, the first insulating piece and the mounting seat form an integral piece.

3. The auxiliary contact portion according to claim 2, wherein the first insulating member and the mount are provided at a distance along a length direction of the auxiliary moving conductive sheet or the auxiliary static conductive sheet.

4. The auxiliary contact portion according to claim 2, wherein the mount is connected to the auxiliary moving conductive sheet and the auxiliary static conductive sheet by injection molding.

5. The auxiliary contact portion according to claim 1, wherein the first insulating member is connected to the auxiliary moving conductive sheet and the auxiliary static conductive sheet by injection molding.

6. The auxiliary contact of claim 1, wherein the first insulator includes a first connection structure for connection with a second connection structure of a yoke of the relay.

7. The auxiliary contact portion according to claim 6, wherein the first connection structure includes a caulking hole, and a wall of the caulking hole includes a first section and a second section in an axial direction of the caulking hole, the wall of the second section extending from the first section in an axial direction and a radial direction of the caulking hole in a direction away from an axis of the caulking hole.

8. The auxiliary contact portion according to claim 7, wherein the hole wall of the first section is parallel to the axis of the rivet hole.

9. The auxiliary contact portion according to claim 7, wherein the wall of the first section is cylindrical and the wall of the second section is frustoconical.

10. The auxiliary contact portion according to claim 1, wherein the area of the auxiliary moving conductive piece where the auxiliary moving contact is provided with a hollowed-out structure.

11. The auxiliary contact portion according to claim 10, wherein the hollowed-out structure is wound around an outer periphery of the auxiliary movable contact.

12. The auxiliary contact portion according to claim 1, wherein the auxiliary moving conductive sheet includes:

the first insulating piece is fixedly connected to the fixing support and the auxiliary static conductive sheet; and

the auxiliary movable reed is connected to the fixed support, and the auxiliary movable contact is arranged on the auxiliary movable reed.

13. The auxiliary contact portion according to claim 1, wherein the auxiliary static spring assembly and the auxiliary dynamic spring assembly are normally open or normally closed.

14. The auxiliary contact portion of claim 1, wherein the auxiliary static spring assembly comprises a first auxiliary static spring assembly and a second auxiliary static spring assembly, each comprising an auxiliary static conductive tab and an auxiliary static contact;

the auxiliary movable contact is positioned between the two auxiliary stationary contacts.

15. A relay comprising the auxiliary contact portion according to any one of claims 1 to 14.

16. The relay of claim 15, wherein the relay further comprises:

the auxiliary contact part is arranged on the base;

a magnetic circuit portion provided on the base, the magnetic circuit portion including a yoke and a coil assembly; the yoke is made of a metal material; the second connecting structure of the yoke comprises a rivet joint, wherein the rivet joint comprises an insertion part and an expansion part, the insertion part is inserted into the first section of the first insulating piece, the expansion part extends from the insertion part along the axial direction and the radial direction of a riveting hole of the first insulating piece in a direction away from the axis of the riveting hole, and the expansion part is abutted with the hole wall of the second section of the riveting hole;

an armature assembly rotatably coupled to the yoke; the auxiliary moving spring assembly is linked with the armature assembly; and

and the main contact part comprises a driving spring and a main static spring, the driving spring is connected with the armature assembly, and the main static spring is arranged on the base.

17. The relay of claim 16, wherein the insert is a clearance fit with a bore wall of the first segment.

18. The relay of claim 16, wherein the yoke includes a first side surface facing away from the coil assembly and a second side surface facing toward the coil assembly, the rivet head being provided protruding from the first side surface, the second side surface being provided with a recess at a location corresponding to the rivet head.

19. The relay of claim 16, wherein the armature assembly comprises:

an armature rotatably coupled to the yoke;

the second insulating piece is fixedly connected with the armature and is used for pushing the auxiliary moving spring assembly; the active spring is connected to the second insulator.

20. The relay of claim 16, wherein the mounting of the auxiliary contact is coupled to the base.