CN220651859U - High-voltage direct-current relay and pushing structure thereof - Google Patents

Abstract

The application provides a high-voltage direct current relay and a pushing structure thereof. The pushing structure comprises a fixed support, a movable reed, an arc isolation part and an elastic piece, wherein the fixed support comprises two side arms, a bearing plate and a pushing rod, the two side arms are respectively arranged on two sides of the bearing plate, the pushing rod is connected with the bottoms of the bearing plate back to the two side arms, two ends of the arc isolation part are respectively connected with the two side arms, and the elastic piece is arranged between the movable reed and the bearing plate. In addition, separate one side that the arc portion was dorsad to movable reed and be provided with two at least arc muscle that separate, and separate the arc portion and be insulating material, separate the arc that can be better through setting up two at least arc muscle that separate of convex on insulating material separate the arc portion like this to further improve high voltage direct current relay's reverse electric life.

Description

High-voltage direct-current relay and pushing structure thereof

Technical Field

The application relates to the technical field of high-voltage direct-current relays, in particular to a high-voltage direct-current relay and a pushing structure thereof.

Background

The working principle of the high-voltage direct current relay is as follows: after the coil in the high-voltage direct-current relay is electrified, an arc can be generated between the two static contacts to move oppositely under the action of electromagnetic force, so that after the high-voltage direct-current relay is electrified for a certain number of times, the generated arc is in opposite blowing to generate short circuit, and the high-voltage direct-current relay is in failure.

At present, the pushing structure of the high-voltage direct current relay mostly adopts a structure comprising a fixing frame, a stopping piece, a moving yellow piece and an elastic piece. The fixed support comprises two fixed side arms, a bearing plate and a pushing rod. The two fixed side arms are respectively arranged at two sides of the bearing plate, and the pushing rod is connected with the bottom of the bearing plate. One end of the stop piece is connected with the tail end of one fixed side arm, and the other end of the stop piece is connected with the tail end of the other fixed side arm. One end of the elastic piece is abutted with the bearing plate, the other end of the elastic piece is abutted with the movable reed, the movable reed is abutted with the stop piece, and the stop piece is provided with an arc-isolating part. The arc isolation part is used for isolating an electric arc so as to improve the reverse electric life of the high-voltage direct-current relay.

Therefore, a solution is needed for further improving the reverse electrical life of the high-voltage dc relay.

Disclosure of Invention

The application provides a high-voltage direct current relay and pushing structure thereof, and the pushing structure can better isolate electric arcs and further improve the reverse electric life of the high-voltage direct current relay.

In one possible implementation, the pushing structure of the high voltage dc relay includes: the device comprises a fixed bracket, a movable reed, an arc isolation part and an elastic piece; the fixed support comprises two side arms, a bearing plate and a pushing rod, wherein the two side arms are respectively arranged at two sides of the bearing plate, and the pushing rod is connected with the bottom of the bearing plate back to the two side arms; the two ends of the arc isolation part are respectively connected with the two side arms, the movable reed is arranged in an area surrounded by the two side arms and the arc isolation part, the arc isolation part is made of an insulating material, at least two arc isolation ribs protruding are arranged on one side of the arc isolation part, which is opposite to the movable reed, and the arc isolation part is used for isolating an electric arc; the elastic piece is arranged between the movable reed and the bearing plate. Therefore, the arc isolation part is made of insulating materials, and can better isolate the arc, so that the reverse electric life of the high-voltage direct-current relay is further prolonged.

In another possible implementation manner, the at least two arc-isolating ribs are arranged in parallel, and the at least two arc-isolating ribs are perpendicular to the length direction of the movable reed.

In another possible implementation manner, a support plate parallel to the arc-isolating part bottom plate is arranged on the back surface of a first arc-isolating rib of the at least two arc-isolating ribs relative to a second arc-isolating rib of the at least two arc-isolating ribs, and two ends of the support plate are supported with the arc-isolating part bottom plate through support columns.

In another possible implementation, the arc-isolating base plate is an insulating material coated or insulating layer wrapped base plate.

In another possible implementation, the at least two arc-isolating ribs are insulation-coated or insulation-coated arc-isolating ribs, the support plate is an insulation-coated or insulation-coated support plate, and the support column is an insulation-coated or insulation-coated support column.

In another possible implementation manner, two ends of the bottom plate of the arc isolation part are respectively provided with a bump, two side arms of the fixing support are respectively provided with a connecting hole, and the bump is used for being inserted into the connecting hole so as to clamp two ends of the arc isolation part with the two side arms respectively.

In another possible implementation manner, the arc-isolating part bottom plate is provided with two side arms extending towards the two side arms of the fixing support, a first side arm on the arc-isolating part bottom plate is connected with the first side arm of the fixing support, and a second side arm on the arc-isolating part bottom plate is connected with the second side arm of the fixing support.

In another possible implementation manner, the first side arm on the arc separation part bottom plate is in overlapped and fixed connection with the first side arm of the fixed bracket, and the second side arm on the arc separation part bottom plate is in overlapped and fixed connection with the second side arm of the fixed bracket.

In another possible implementation, the arc-isolating part and the two side arms of the fixing bracket are of an integrated structure.

The application provides a high-voltage direct current relay, the high-voltage direct current relay includes the promotion structure, the stationary contact, the shell of the arbitrary perhaps realization mode of aforesaid.

The high-voltage direct current relay and the pushing structure thereof comprise a fixed support, a movable reed, an arc isolation part and an elastic piece. The fixed support comprises two side arms, a bearing plate and a pushing rod, wherein the two side arms are respectively arranged on two sides of the bearing plate, the pushing rod is connected with the bottoms of the bearing plate back to the two side arms, two ends of the arc separation part are respectively connected with the two side arms, and the elastic piece is arranged between the movable reed and the bearing plate. In addition, separate one side that the arc portion was dorsad to movable reed and be provided with two at least arc muscle that separate, and separate the arc portion and be insulating material, separate the arc that can be better through setting up two at least arc muscle that separate of convex on insulating material separate the arc portion like this to further improve high voltage direct current relay's reverse electric life.

Drawings

Fig. 1 is a schematic structural diagram of a pushing structure of a high-voltage dc relay according to an embodiment of the present application;

FIG. 2 is a schematic view of an arc isolation portion according to an embodiment of the present disclosure;

fig. 3 is a schematic cross-sectional structure of a pushing structure of a high-voltage dc relay according to another embodiment of the present application;

fig. 4 is a schematic cross-sectional view of a pushing structure of a high-voltage dc relay according to another embodiment of the present disclosure;

fig. 5 is a schematic cross-sectional structure of the hvth relay described herein;

fig. 6 is a schematic structural diagram of the high-voltage dc relay described in the present application.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

In this application, unless specifically stated and limited 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 formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

One embodiment of the present application provides a push structure 10 for a high voltage dc relay. For example, as shown in fig. 1, the pushing mechanism 10 of the high voltage dc relay includes: the fixing bracket 100, the movable reed 200, the arc isolation part 300 and the elastic member 400. The fixing bracket 100 includes two side arms 110, a receiving plate 120, and a push rod 130. The two side arms 110 are respectively disposed at two sides of the receiving plate 120, and the pushing rod 130 is connected to the bottom of the receiving plate 120 opposite to the side arms 110. Both ends of the arc separating part 300 are connected to the two side arms 110, respectively, that is, one end of the arc separating part 300 is connected to one side arm 110, and the other end of the arc separating part 300 is connected to the other side arm 110. The movable contact spring 200 is disposed in an area surrounded by the two side arms 110 and the arc isolation portion 300. Wherein, the side of the arc isolation part 300 facing away from the movable reed 200 is provided with at least two arc isolation ribs 310 protruding, and the arc isolation part is made of insulating material, and the at least two arc isolation ribs 310 are used for isolating electric arcs.

Therefore, the arc is kept apart through being provided with two at least arc bars that separate in the arc portion, is equivalent to forming two shielding walls, and separates the arc portion for insulating material for the electric arc of opposite direction motion is sheltered from by separating the arc bar between two stationary contacts, makes the electric arc motion take place deflection or kick-back, thereby avoids the short circuit phenomenon that produces because of electric arc to blowing, has improved the effect of keeping apart electric arc, and then improves high voltage direct current relay's reverse electric life.

It should be noted that, for convenience of description, the following embodiments will be described by taking the example in which two protruding arc-isolating ribs 310 are provided on one side of the movable contact spring 200, but the present application is not limited thereto.

It is understood that the movable contact spring 200 has a plate-like structure. For example, the movable contact spring 200 has an oval elongated sheet-like structure in cross section.

It will be appreciated that both ends in the longitudinal direction of the movable contact spring 200 are adapted to be in contact with the stationary contact.

Alternatively, the elastic member 400 may be used to provide an elastic force. For example, the elastic member 400 may be a compression spring. More specifically, the compression spring may be a coil spring that is subjected to axial compression. The compression spring has a high elastic strength and a high elastic force for restoring elastic deformation, so that the abutting relationship between the movable reed 200 and the arc isolation part 300 can be stably maintained. When the direct current relay works, the movable reed 200 is contacted with the two fixed contacts, and the elastic piece can ensure the contact between the movable reed 300 and the two fixed contacts. Therefore, the working stability of the high-voltage direct-current relay pushing structure can be improved through the elastic piece.

Alternatively, two arc-isolating ribs 310 of the at least two arc-isolating ribs 310 are arranged in parallel, and the arc-isolating ribs 310 are perpendicular to the length direction of the movable reed.

Alternatively, a first arc-shielding rib 310 and a second arc-shielding rib 310 of the at least two arc-shielding ribs 310 are respectively provided with a support plate 320 parallel to the arc-shielding portion bottom plate 340 with respect to the rear surface of the other. As shown in fig. 2, the arc-isolating part 300 includes two arc-isolating ribs 310, a support plate 320 provided at a side of each arc-isolating rib 310, a support column 330 and an arc-isolating part bottom plate 340. Wherein, the two ends of the support column 330 are respectively used for abutting against the support plate 320 and the arc-isolating bottom plate 340.

It will be appreciated that the outer surfaces of support post 330, support plate 320 and base plate 340 are flush.

It is also understood that the arc separating portion bottom plate 340 may have a rectangular structure, and the long side direction of the rectangular structure is perpendicular to the length direction of the movable reed 200.

It will also be appreciated that the upper surface of the support plate 320 is also provided with a protrusion that is perpendicular to the direction of the support plate 320 and that is in the same direction as the support column that is perpendicular to the support plate.

Optionally, the bottom plate 340 is an insulating material coated bottom plate 340. In particular, the insulating material can be polytetrafluoroethylene with excellent insulating performance, and can effectively isolate reverse electric arcs. In addition, polytetrafluoroethylene has high temperature resistance, wear resistance, corrosion resistance and the like, so that the durability of the bottom plate 340 is enhanced, namely, the arc-isolating part can isolate the reverse arc for a long time. In other words, the stability of the arc isolation part is higher, and the reverse electric life of the high-voltage direct-current relay pushing structure is prolonged.

It will be appreciated that at least one of the support plate 320, the arc-separating ribs 310, and the support columns 330 and the bottom plate 340 are similar to the bottom plate, and are also coated with an insulating material. The stability of the arc isolation part is further improved, namely the reverse electric life of the high-voltage direct-current relay pushing structure is further improved.

Optionally, the bottom plate 340 is an insulating layer wrapped bottom plate 340. Specifically, the insulating layer is a polyvinyl chloride layer. Polyvinyl chloride and polyethylene are materials with excellent insulating properties, and in addition, the material has the characteristics of stable chemical properties, cold resistance, flame resistance, aging resistance, corrosion resistance and the like. Thus, the insulating layer also has an isolation effect on the reverse arc, and the arc cannot be short-circuited through the arc isolation part.

It will be appreciated that at least one of the support plate 320, the arc-separating ribs 310, and the support columns 330 and the bottom plate 340 are similar to the bottom plate, and are also encased by an insulating layer. The stability of the arc isolation part is further improved, namely the reverse electric life of the high-voltage direct-current relay pushing structure is further improved.

Optionally, the bottom plate 340 is made of an insulating material, which is not limited in this application. For example, the bottom plate 340 may be a plastic piece made of plastic material.

It is further understood that arc-separating ribs 310, support columns 330, support plates 320, and bottom plate 340 are each coated with an insulating material, wrapped with an insulating layer, or made of an insulating material.

In one embodiment, as shown in fig. 1, two ends of the arc separation bottom plate 340 are respectively provided with a bump 350, and two side arms 110 of the fixing bracket 100 are respectively provided with a connection hole. The protruding block 350 is used for being inserted into the connecting hole, so that two ends of the arc isolation part are respectively clamped and fixed with two side arms of the fixing bracket.

It will be appreciated that the arc splitter floor 340 may be provided with raised bumps 350 on the broadside. The bump 350 and the arc-isolating portion 340 may be integrally injection molded.

In another embodiment, as shown in fig. 3, the arc partition floor 340 is provided with two side arms 360 extending toward the two side arms 110 of the fixed bracket 100. The two side arms 360 of the arc-separating portion bottom plate 340 are connected to the two side arms 110 of the fixing bracket 100, respectively.

Alternatively, the side arm 110 and the side arm 360 are fixedly connected in an overlapping manner, for example, welding or dispensing may be used according to the material of the side arm.

Optionally, the side arm 110 is connected to the side arm 360 by a plug connection. This application is not limited thereto.

It will be appreciated that the side arm 360 may be flush with one side of the mounting bracket base or the side arm 360 may be disposed within the mounting bracket base, as this application is not limited in this regard.

In yet another embodiment, as shown in fig. 4, the arc-isolating portion is of unitary construction with the two side arms 110 of the fixed bracket 100. For example, the two side arms 110 are respectively inserted between the arc partition bottom plate 340 and the arc partition support plate to form an integrated structure.

It is understood that in this embodiment, the two side arms 110 and the receiving plate 120 may be integrated or may be a plug-in connection. For example, the receiving plate 120 is provided with two slots, and the two side arms 110 are respectively inserted into the two slots.

Alternatively, all or part of the three components of the fixing bracket 100 may be inserted or integrated, which is not limited in this application.

As shown in fig. 5, the present application also provides a high voltage dc relay 500. The high voltage dc relay 500 includes the push structure 10, the stationary contact 20, and the housing 30 (e.g., as shown in fig. 6) described in the previous embodiments. The contact and separation of the movable contact at both ends of the movable contact 120 with the outgoing ends of the two stationary contacts 10 can be achieved by the pushing rod 130 in the pushing structure 10.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims (7)

1. A push structure of a high voltage dc relay, comprising: the device comprises a fixed bracket, a movable reed, an arc isolation part and an elastic piece;

the fixed support comprises two side arms, a bearing plate and a pushing rod, wherein the two side arms are respectively arranged on two sides of the bearing plate, and the pushing rod is connected with the bottom of the bearing plate back to the two side arms;

the two ends of the arc isolation part are respectively connected with the two side arms, the movable reed is arranged in an area surrounded by the two side arms and the arc isolation part, the arc isolation part is made of an insulating material, at least two arc isolation ribs protruding are arranged on one side of the arc isolation part, which is opposite to the movable reed, and the arc isolation part is used for isolating an electric arc;

the elastic piece is arranged between the movable reed and the bearing plate;

the at least two arc-isolating ribs are arranged in parallel, and the at least two arc-isolating ribs are perpendicular to the length direction of the movable reed;

a support plate parallel to the arc-isolating part bottom plate is arranged on the back surface of a first arc-isolating rib of the at least two arc-isolating ribs relative to a second arc-isolating rib of the at least two arc-isolating ribs, and two ends of the support plate are supported with the arc-isolating part bottom plate through support columns;

the arc isolation part bottom plate is provided with two side arms extending towards the two side arms of the fixed support, a first side arm on the arc isolation part bottom plate is connected with the first side arm of the fixed support, and a second side arm on the arc isolation part bottom plate is connected with the second side arm of the fixed support.

2. The pushing structure of claim 1, wherein the arc-isolating base plate is an insulating material coated or insulating layer wrapped base plate.

3. The pushing structure according to claim 2, wherein the at least two arc-isolating ribs are insulation-coated or insulation-coated arc-isolating ribs, the support plate is an insulation-coated or insulation-coated support plate, and the support column is an insulation-coated or insulation-coated support column.

4. The pushing structure according to claim 1, wherein two ends of the arc-isolating part bottom plate are respectively provided with a bump, two side arms of the fixing support are respectively provided with a connecting hole, and the bump is used for being inserted into the connecting hole so as to clamp two ends of the arc-isolating part with the two side arms respectively.

5. The pushing structure according to claim 1, wherein the two side arms of the fixed bracket, the receiving plate and the pushing rod are of an integral structure.

6. The pushing structure of claim 1, wherein the arc-isolating portion is an integral structure with the two side arms of the fixed bracket.

7. A high voltage dc relay comprising a push structure as claimed in any one of claims 1 to 6.