CN213277947U - Power relay - Google Patents

Abstract

The present application relates to a relay, and more particularly, to a power relay, which includes: a housing assembly including a housing and a frame, the housing having a cavity with an opening, wherein the frame is disposed within the cavity, a yoke mounted to a side of the frame; the left end of the first conducting strip is provided with a connecting part, and the connecting part is provided with a plurality of third grooves in a rectangular array and a first convex circle; and the movable spring assembly comprises a second conducting strip, the second conducting strip is in point linkage with the first conducting strip, and the second conducting strip is provided with a plurality of fourth grooves in a rectangular array and a second convex circle. The utility model discloses can realize the advantage that structural strength is high, the shock resistance is good, the welding is convenient and the overall arrangement is compact through the structural configuration who effectively utilizes its self.

Description

Power relay

Technical Field

The present application relates to a relay, and more particularly, to a power relay.

Background

A relay is a device that can produce a jump in one or more electrical output circuits when an input quantity (or an excitation quantity) meets certain specified conditions, and can be used in a neutral point direct grounding system as a directional element for zero-sequence current protection. As technology has developed, relays are also being used more widely. The existing relay is added with two conducting strips connected through a lead on a yoke and a movable reed, but the lead is troublesome to be connected with the movable reed due to the structural problem. In addition, the structural design and the internal layout of the relay shell also influence the stability of the relay in use. In view of this, it is necessary to design a power relay with high structural strength, good shock resistance, convenient welding and compact layout.

There is therefore a need to provide a power relay having high structural strength, good shock resistance, convenient welding and compact layout.

Disclosure of Invention

The present application is directed to a power relay, wherein the power relay can effectively use its own structural configuration to achieve the advantages of compact layout and good shock resistance.

Another object of the present application is to provide a power relay, wherein, power relay includes a casing, the casing has two first fender muscle, a second fender muscle and a third fender muscle, wherein first fender muscle, second fender muscle and third fender muscle are used for placing power relay's internal element to improve power relay's structural strength height, shock resistance and overall arrangement compactness.

Another object of the present application is to provide a power relay, wherein the power relay includes a first conductive plate and a second conductive plate, the first conductive plate and the second conductive plate have a first convex circle and a second convex circle respectively, so that a user can connect the first conductive plate and the second conductive plate electrically through a wire.

Another object of the present application is to provide a power relay, wherein the power relay has a simple structure, does not involve a complicated manufacturing process and expensive materials, has high economical efficiency, and is easy to popularize and use.

In order to achieve at least one of the above objects, the present application provides a power relay, wherein the power relay includes:

a housing assembly, the housing assembly including a housing, a frame and a spacer, the housing having a cavity with an opening, wherein the bottom wall forming the cavity has two first retaining ribs, a second retaining rib and a third retaining rib, wherein the second retaining rib is vertically disposed on the bottom wall forming the cavity, wherein the third retaining rib is laterally disposed on the bottom wall forming the cavity, and the third retaining rib is located at one end of the second retaining rib, wherein the second retaining rib is perpendicular to the third retaining rib, wherein two of the first retaining ribs are juxtaposed and spaced apart on one side of the second retaining rib, and two of the first retaining ribs are both disposed parallel to the third retaining rib, wherein the frame is disposed in the cavity, and the lower end of the frame abuts against the two of the first retaining ribs, wherein the spacer is snapped onto the upper and lower ends of the frame, the isolating sheet is also provided with a clamping groove which is clamped with the second blocking rib so as to limit the displacement of the sent framework;

the yoke is arranged on one side of the framework, wherein the left side wall of the yoke is provided with two first bulges which are oppositely arranged and two second bulges which are oppositely arranged, the connecting line of the two first bulges and the connecting line of the two second bulges are mutually perpendicular, and the two first bulges are positioned on the upper sides of the two second bulges;

a first conductive plate mounted on the second protrusion, wherein a connection part is provided at a left end of the first conductive plate, the connection part having a plurality of third grooves in a rectangular array and a first convex circle, wherein the first convex circle is located at a center of the plurality of third grooves in the rectangular array; and

a movable spring subassembly, movable spring subassembly includes a movable contact spring, at least one movable contact and a second conducting strip, the left end riveting of movable contact spring is connected on first arch, wherein the movable contact spring with movable contact spring right-hand member riveting is connected, wherein the right-hand member of second conducting strip cup joints movable contact piece, just the second conducting strip with first conducting strip electricity is connected, wherein the second conducting strip has a portion of bending, the portion of bending has a plurality of fourth recesses and a second bulge circle that are rectangular array, wherein the second bulge circle is located a plurality of rectangular array's that are the center of fourth recess.

In one or more embodiments of the present application, the bottom of the frame has a first groove, the top of the frame has a second groove, wherein the frame further has a circular hole communicating the first groove with the second groove, wherein the center line of the frame and the center line of the circular hole are located on the same straight line.

In one or more embodiments of the present application, the power relay includes a magnetic circuit assembly including a coil, a core, wherein the coil is formed by winding an enamel wire at a middle section of the bobbin, wherein one end of the core is slidably inserted into the round hole, and the other end of the core abuts against a bottom wall forming the second groove, wherein a bottom of the yoke is placed in the first groove, and the bottom of the yoke is interference-fitted with one end of the core to prevent the yoke from being detached from the first groove.

In one or more embodiments of the present application, the movable spring assembly further includes an armature, the armature is mounted on the top of the frame, and the bottom of the armature contacts the top of the iron core, wherein the movable spring is located on the upper side of the armature.

In one or more embodiments of the present application, the movable spring has a bending portion, and the bending portion is deformable by a force, so that a right end of the movable spring swings a predetermined distance in a direction approaching the iron core, and the armature contacts the iron core.

In one or more embodiments of the present application, the power relay further includes a static spring assembly, the static spring assembly includes two static springs and at least two static contacts, two of the static springs are disposed oppositely and at an interval, and the movable contact is disposed between the two static springs, wherein the static contacts are riveted to the static springs, the bottoms of the two static springs disposed oppositely abut against the third rib, and the centers of the two static contacts and the center of the movable contact are both disposed on the same straight line.

In one or more embodiments of the present application, the housing assembly further includes a bottom cover, the bottom cover is connected to the housing in a clamping manner to close the opening of the cavity, wherein one side of the bottom cover has two oppositely disposed protrusions, the protrusions extend toward a direction close to the cavity, and the protrusions have a sliding groove, wherein the stationary spring is slidably inserted into the sliding groove, so as to limit the displacement of the stationary spring.

In one or more embodiments of the present application, the other side of the bottom cover further has a fifth groove, wherein the bottom wall forming the fifth groove further has a plurality of criss-cross bottom ribs to reinforce the strength structure of the bottom cover.

Drawings

These and/or other aspects and advantages of the present application will become more apparent and more readily appreciated from the following detailed description of the embodiments of the present application, taken in conjunction with the accompanying drawings of which:

fig. 1 illustrates a schematic diagram of a power relay.

Fig. 2 illustrates a structural schematic of the housing.

Fig. 3 illustrates a cross-sectional view of a power relay.

Fig. 4 illustrates a schematic diagram of the internal components of the power relay.

Fig. 5 illustrates an exploded view of the internal components of the appliance of the power relay.

Fig. 6 illustrates a skeletal structure diagram.

Fig. 7 and 8 illustrate a structural schematic view of the bottom cover.

Detailed Description

The terms and words used in the following specification and claims are not limited to the literal meanings, but are used only by the inventors to enable a clear and consistent understanding of the application. Accordingly, it will be apparent to those skilled in the art that the following descriptions of the various embodiments of the present application are provided for illustration only and not for the purpose of limiting the application as defined by the appended claims and their equivalents.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

While ordinal numbers such as "first," "second," etc., will be used to describe various components, those components are not limited herein. The term is used only to distinguish one element from another. For example, a first component could be termed a second component, and, similarly, a second component could be termed a first component, without departing from the teachings of the present inventive concept. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The terminology used herein is for the purpose of describing various embodiments only and is not intended to be limiting. As used herein, the singular forms are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, numbers, steps, operations, components, elements, or combinations thereof, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, elements, or groups thereof.

Summary of the application

A relay is a device that can produce a jump in one or more electrical output circuits when an input quantity (or an excitation quantity) meets certain specified conditions, and can be used in a neutral point direct grounding system as a directional element for zero-sequence current protection. With the development of technology, relays are more widely used. The existing relay is added with two conducting strips connected through a lead on a yoke and a movable reed, but the lead is troublesome to be connected with the movable reed due to the structural problem. In addition, the structural design and the internal layout of the relay shell also influence the stability of the relay in use. In view of this, it is necessary to design a power relay with high structural strength, good shock resistance, convenient welding and compact layout.

Based on this, a power relay with high structural strength, good shock resistance, convenient welding and compact layout is needed.

Based on the technical problem, the application provides a power relay, wherein, power relay simple structure does not relate to complicated manufacturing process and expensive material, has higher economic nature, and simultaneously, to the producer, the power relay that this application provided easily produces, and low cost more is favorable to controlling manufacturing cost, further is favorable to product popularization and use.

Schematic power relay

Referring to fig. 1 to 8, a power relay according to a preferred embodiment of the present invention will be described in detail, wherein the power relay includes a housing 11, the housing 11 is an injection molded part, and the housing 11 can improve the structural strength of the housing 11 according to its structural configuration, so as to prevent the housing 11 from being deformed. It should be noted that the housing 11 is the focus of the present invention.

Specifically (as shown in fig. 3), the power relay includes a housing assembly 10, the housing assembly 10 includes a housing 11, the housing 11 has an opening 1101 and a cavity 1102, wherein the cavity 1102 is in communication with the opening 1101.

Further, the bottom wall forming the cavity 1102 has at least one rib 111 for improving the structural strength of the housing 11.

Further, the bottom wall forming the cavity 1102 is further provided with two first blocking ribs 112, and the first blocking ribs 112 extend upwards from the bottom wall.

Further, the bottom wall forming the cavity 1102 is further provided with a second blocking rib 113, the second blocking rib 113 extends downward from the bottom wall, and the second blocking rib 113 is provided with a first notch.

Further, the bottom wall forming the cavity 1102 is further provided with a third rib 114, the third rib 114 extends downward from the bottom wall, and the third rib 114 is provided with a second notch, wherein the first notch is perpendicular to the second notch.

It should be noted that the second blocking rib 113 is vertically disposed on the bottom wall of the cavity 1102, the third blocking rib 114 is transversely disposed on the bottom wall of the cavity 1102, the third blocking rib 114 is close to one end of the second blocking rib 113, the two first blocking ribs 112 are both parallel to the third blocking rib 114, the second blocking rib 113 is perpendicular to the third blocking rib 114, and the two first blocking ribs 112 are parallel to each other and are disposed at an interval on one side of the second blocking rib 113.

Specifically (as shown in fig. 4 and 6), the housing assembly 10 further includes a frame 12, and the frame 12 is disposed in the cavity 1102, wherein the lower end of the frame 12 abuts against the two first blocking ribs 112.

It should be noted that the bottom of the frame 12 has a first groove 121, and the top of the frame 12 has a second groove 122. Further, the frame 12 further has a circular hole 123 penetrating through the upper and lower ends of the frame 12, wherein the center line of the frame 12 and the circular hole 123 are located on the same straight line.

Specifically, the housing assembly 10 further includes a spacer 13, and upper and lower ends of the spacer 13 are clamped to upper and lower ends of the frame 12 (as shown in fig. 5). It is worth mentioning that, still have a joint groove 131 on the diapire of the middle section of spacing block 13, joint groove 131 with second fender muscle 113 joint is connected, in order to inject skeleton 12's displacement, thereby prevents skeleton 12 is in cavity 1102 removes.

Specifically, the power relay includes a magnetic circuit assembly 20, and the magnetic circuit assembly 20 is mounted on the bobbin 12.

Further, the magnetic circuit assembly 20 includes a coil 21 and a core 22, wherein the coil 21 is formed by winding an enameled wire at the middle section of the framework 12, one end of the core 22 is slidably inserted into the circular hole 123, and the other end of the core 22 abuts against the bottom wall forming the second groove 122.

Further, the power relay further includes a yoke 30, the yoke 30 is mounted on one side of the bobbin 12, a bottom of the yoke 30 is disposed in the first groove 121, and the bottom of the yoke 30 is in interference fit with a bottom of the core 22 to prevent the yoke 30 from being disengaged from the first groove 121.

Further, the left side wall of the yoke 30 has two first protrusions 31 disposed opposite to each other and two second protrusions 32 disposed opposite to each other, wherein a connecting line of the two first protrusions 31 and a connecting line of the two second protrusions 32 are perpendicular to each other, and the two first protrusions 31 are located on the upper sides of the two second protrusions 32.

Specifically, the power relay further includes a first conductive plate 40, the first conductive plate 40 is mounted on the second protrusion 32, wherein the left end of the first conductive plate 40 has a connection portion 41, the connection portion 41 has a plurality of third grooves 411 in a rectangular array and a first convex circle 412, and the first convex circle 412 is located at the center of the plurality of third grooves 411 in the rectangular array.

It should be noted that, since the first conductive sheet 40 has the first convex circle 412, the user is prompted that the first convex circle 412 is a welding position, so that the user can weld one end of the wire and the first conductive sheet 40 together conveniently.

Specifically, the power relay further comprises a movable spring assembly 50, wherein the movable spring assembly 50 comprises an armature 51 and a movable spring 52, the armature 51 is riveted at the right end of the movable spring 52, the bottom of the armature 51 is in contact with the top of the iron core 22, and the left end of the movable spring 52 is riveted on the first protrusion 31.

Further, the movable spring 52 has a bending portion 521, wherein when the magnetic circuit assembly 20 operates, the iron core 22 generates an attractive force on the armature 51, so that the iron core 22 drives the armature 51 to move downward, and the armature drives the right end of the movable spring 52 to swing downward by a predetermined distance, so that the bending portion 521 deforms due to the downward swing of the right end of the movable spring 52. Further, when the iron core 22 does not generate attraction force on the armature 51, the right end of the movable spring 52 rotates upward by a predetermined angle due to the elastic potential energy of the bending portion 521, so that the armature 51 is separated from the iron core 22.

Further, the movable spring assembly 50 further comprises at least one movable contact 53, and the movable contact 53 is riveted with the right end of the movable spring piece 52.

Further, the movable spring assembly 50 further includes a second conductive plate 54, the right end of the second conductive plate 54 is sleeved on the movable contact 53, and the bottom of the second conductive plate 54 directly contacts the movable spring 52. Further, the second conductive sheet 54 has a bending portion 541 bent away from the armature 51, where the bending portion 541 has a plurality of fourth grooves 5411 in a rectangular array and a second convex circle 5412, and the second convex circle 5412 is located at the center of the plurality of fourth grooves 5411 in the rectangular array. Further, the other end of the wire is solder-connected to the second convex circle 5412. It should be noted that, since the second conductive sheet 54 has a second convex circle 5412, it is prompted to the user that the second convex circle 5412 is a welding position, so that the user can weld the other end of the wire and the second conductive sheet 54 together.

Specifically, the power relay further comprises a fixed spring assembly 60, wherein the fixed spring assembly 60 comprises two fixed spring pieces 61 and at least two fixed contacts 62, two of the fixed spring pieces 61 are oppositely arranged, the movable contact 53 is located between the two fixed spring pieces 61, and the fixed contacts 62 are riveted on the fixed spring pieces 61. Further, the bottom of the two opposite and spaced spring leaves 61 abut against the third rib 114. It is worth mentioning that the centers of the two stationary contacts 62 and the center of the movable contact 53 are located on the same straight line. When the armature 51 is moved downward by the attraction of the iron core 22, the bent portion 521 is rotated downward by a predetermined angle by the right end of the movable spring 52, so that the movable contact 53 is directly contacted with the stationary contact 62 at the lower end. Further, when the iron core 22 does not generate attraction force to the armature 51, the right end of the movable spring 52 rotates upward by a predetermined angle due to the elastic potential energy of the bending portion 521, so that the armature 51 is separated from the iron core 22, and the movable contact 53 is in contact with the stationary contact 62 at the upper end.

It is worth mentioning that, due to the third rib 114, when two oppositely disposed fixed springs 61 are placed on the third rib 114, the centers of the movable contact 53 and the fixed contact 62 are located on the same straight line, so that the movable contact 53 can be brought into effective contact with the fixed contact 62 when the movable spring 52 swings up and down.

Specifically (as shown in fig. 7 and 8), the housing assembly 10 further includes a bottom cover 70, and the bottom cover 70 is snap-connected to the housing 11 to close the opening 1101 of the cavity 1102.

Further, the bottom cover 70 has two oppositely disposed protrusions 71 on one side of the bottom cover 70, and the protrusions 71 extend toward the cavity 1102. Further, the bump 71 is located at the upper right corner of the bottom cover 70.

Further, the projection 71 has a slide groove 711, wherein the stationary spring plate 61 is slidably inserted into the slide groove 711, thereby restricting the displacement of the stationary spring plate 61.

Further, the other side of the bottom cover 70 is further provided with a fifth groove 72, wherein the bottom wall forming the fifth groove 72 is further provided with a plurality of criss-cross bottom ribs 73 to reinforce the strength structure of the bottom cover 70, thereby preventing the bottom cover 70 from being deformed. It is worth mentioning that, since the bottom cover 70 is an injection molded part, the bottom cover 70 is relatively easy to deform after injection molding, and the bottom rib 73 greatly improves the structural strength of the bottom cover 70, thereby preventing the bottom cover 70 from deforming during formation.

In summary, the power relay according to the embodiment of the present application is clarified, and provides the power relay with advantages of high structural strength, good shock resistance, convenience in welding, compact layout, and the like.

It is worth mentioning that, in the embodiment of the present application, the power relay has a simple structure, does not involve a complicated manufacturing process and expensive materials, and has high economical efficiency. Meanwhile, for manufacturers, the power relay is easy to produce, low in cost, more beneficial to controlling production cost and further beneficial to product popularization and use.

It will be understood by those skilled in the art that the embodiments of the present invention as described above and shown in the drawings are given by way of example only and are not limiting of the present invention. The objects of the present invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the embodiments, and any variations or modifications may be made without departing from the principles of the present invention.

Claims (8)

1. A power relay, characterized in that the power relay comprises:

a housing assembly, the housing assembly including a housing, a frame and a spacer, the housing having a cavity with an opening, wherein the bottom wall forming the cavity has two first retaining ribs, a second retaining rib and a third retaining rib, wherein the second retaining rib is vertically disposed on the bottom wall forming the cavity, wherein the third retaining rib is laterally disposed on the bottom wall forming the cavity, and the third retaining rib is located at one end of the second retaining rib, wherein the second retaining rib is perpendicular to the third retaining rib, wherein two of the first retaining ribs are juxtaposed and spaced apart on one side of the second retaining rib, and two of the first retaining ribs are both disposed parallel to the third retaining rib, wherein the frame is disposed in the cavity, and the lower end of the frame abuts against the two of the first retaining ribs, wherein the spacer is snapped onto the upper and lower ends of the frame, the isolating sheet is also provided with a clamping groove which is clamped with the second blocking rib so as to limit the displacement of the sent framework;

the yoke is arranged on one side of the framework, wherein the left side wall of the yoke is provided with two first bulges which are oppositely arranged and two second bulges which are oppositely arranged, the connecting line of the two first bulges and the connecting line of the two second bulges are mutually perpendicular, and the two first bulges are positioned on the upper sides of the two second bulges;

a first conductive plate mounted on the second protrusion, wherein a connection part is provided at a left end of the first conductive plate, the connection part having a plurality of third grooves in a rectangular array and a first convex circle, wherein the first convex circle is located at a center of the plurality of third grooves in the rectangular array; and

a movable spring subassembly, movable spring subassembly includes a movable contact spring, at least one movable contact and a second conducting strip, the left end riveting of movable contact spring is connected on first arch, wherein the movable contact spring with movable contact spring right-hand member riveting is connected, wherein the right-hand member of second conducting strip cup joints movable contact piece, just the second conducting strip with first conducting strip electricity is connected, wherein the second conducting strip has a portion of bending, the portion of bending has a plurality of fourth recesses and a second bulge circle that are rectangular array, wherein the second bulge circle is located a plurality of rectangular array's that are the center of fourth recess.

2. The power relay of claim 1, wherein the bottom of the bobbin has a first groove, the top of the bobbin has a second groove, wherein the bobbin further has a circular hole connecting the first groove and the second groove, wherein the center line of the bobbin and the center line of the circular hole are located on the same straight line.

3. The power relay according to claim 2, wherein said power relay includes a magnetic circuit assembly including a coil, a core, wherein said coil is wound by enameled wire at a middle section of said bobbin, wherein said core is slidably inserted into said round hole at one end thereof, and the other end thereof abuts against a bottom wall forming said second groove, wherein a bottom portion of said yoke is disposed in said first groove, and the bottom portion of said yoke is interference-fitted with one end of said core to prevent said yoke from being detached from said first groove.

4. The power relay of claim 3, wherein the movable spring assembly further comprises an armature, the armature is riveted to a right end of the movable spring, and a bottom of the armature contacts a top of the iron core, wherein the movable spring is located on an upper side of the armature.

5. The power relay according to claim 4, wherein the movable spring has a bending portion that is deformed by a force so as to swing a right end of the movable spring in a direction approaching the iron core by a predetermined distance, thereby contacting the armature to the iron core.

6. The power relay according to claim 1, wherein said power relay further comprises a stationary spring assembly, said stationary spring assembly comprising two stationary spring pieces and at least two stationary contacts, wherein said stationary spring pieces are oppositely and spaced apart, and said movable contact is located between said two stationary spring pieces, wherein said stationary contacts are riveted to said stationary spring pieces, wherein bottoms of said two oppositely located stationary spring pieces abut against said third rib, wherein centers of said two stationary contacts and a center of said movable contact are located on a same straight line.

7. The power relay according to claim 6, wherein the housing assembly further comprises a bottom cover, the bottom cover is snap-coupled to the housing to close the opening of the cavity, wherein one side of the bottom cover has two oppositely disposed protrusions, the protrusions extend toward the cavity, and the protrusions have a sliding slot, wherein the stationary spring is slidably inserted into the sliding slot to limit the displacement of the stationary spring.

8. The power relay of claim 7, wherein the other side of the bottom cover further has a fifth groove, wherein the bottom wall forming the fifth groove further has a plurality of criss-cross bottom ribs to reinforce the strength structure of the bottom cover.

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