CN216903842U - Ring main unit air box and ring main unit - Google Patents

Abstract

The utility model relates to a ring main unit air box which comprises a box body, an isolating switch and a switch supporting mechanism, wherein the box body comprises a left box plate and a right box plate; the isolator sets up in the box, switch supporting mechanism is used for supporting isolator, switch supporting mechanism includes switch backup pad and support piece, the both ends of switch backup pad respectively with left boxboard right boxboard is connected, support piece sets up in the switch backup pad, support piece is used for right isolator's bottom supports. The utility model is different from the prior art, the bottom of one end or the other end of the isolating switch can be supported by the supporting piece, and the gravity of the isolating switch is transmitted to the left box plate and the right box plate by the switch supporting plate, so that the supporting force of the isolating switch can be effectively improved, and the problem of integral failure of the ring main unit caused by downward movement of the bottom of the isolating switch is avoided.

Description

Ring main unit air box and ring main unit

Technical Field

The utility model relates to the technical field of ring main units, in particular to a ring main unit air box and a ring main unit.

Background

The Ring Main Unit (Ring Main Unit) is a group of electric equipment (high-voltage switch equipment) which is arranged in a metal or nonmetal insulating cabinet body or is made into an assembled interval Ring Main power supply Unit, and the core part of the Ring Main Unit adopts a load switch and a fuse. The power supply device has the advantages of simple structure, small volume, low price, capability of improving power supply parameters and performance, power supply safety and the like.

In the process of implementing the utility model, the inventor finds that the following problems exist in the prior art:

among the prior art, isolator's one end is supported by three station mechanisms, and isolator's the other end only leans on the connecting plate to connect on the box, because isolator's weight is generally heavier, and long-term the back of using, isolator's the other end takes place easily to move down, leads to the whole inefficacy of looped netowrk cabinet easily.

SUMMERY OF THE UTILITY MODEL

Therefore, a ring main unit air box and a ring main unit are needed to be provided, so as to solve the technical problem that in the prior art, due to the fact that the weight of the isolating switch is generally heavy, after the isolating switch is used for a long time, the other end of the isolating switch is easy to move down, and the whole ring main unit is easy to lose efficacy.

To achieve the above object, the inventor provides a ring main unit air box, comprising

The box body comprises a left box plate and a right box plate;

the isolating switch is arranged in the box body; and

the switch supporting mechanism is used for supporting the isolating switch and comprises a switch supporting plate and a supporting piece, the two ends of the switch supporting plate are respectively connected with the left box plate and the right box plate, the supporting piece is arranged on the switch supporting plate, and the supporting piece is used for supporting the bottom of the isolating switch.

Be different from prior art, the technical scheme of this application is used for supporting through switch supporting mechanism isolator, switch supporting mechanism include switch backup pad and support piece, switch backup pad's both ends respectively with left side boxboard right side boxboard is connected, support piece sets up in the switch backup pad, support piece is used for right isolator's bottom supports. So, support piece can support isolator one end or the bottom of the other end, transmits isolator's gravity for left boxboard, right boxboard by the switch backup pad to can effectively improve isolator's holding power, avoid isolator's bottom to move down, and lead to the problem of looped netowrk cabinet whole inefficacy.

As an embodiment of the present invention, the switch support plate is provided with two or more supporting members, the two or more supporting members are arranged along a horizontal direction, and the two or more supporting members are respectively located at different positions of the bottom of the disconnecting switch. So, through the support piece more than two, can support the different positions of isolator's bottom respectively, further improve the holding power to isolator.

As an embodiment of the present invention, the box further includes a front box plate and a rear sealing plate, the isolation switch includes an isolation switch bracket rear wall plate, the isolation switch bracket rear wall plate is connected to the rear sealing plate, the switch supporting plate is located below the isolation switch bracket rear wall plate, and the supporting member is used for supporting the bottom of the isolation switch bracket rear wall plate. So, wallboard is connected with preceding boxboard behind the isolator support, and on the gravity of wallboard can transmit the back shrouding behind the isolator support, can support the wallboard behind the isolator support through support piece, avoids the wallboard bottom to move down behind the isolator support.

In one embodiment of the present invention, the switch support plate has a U-shaped cross-section. Therefore, the cross section of the switch supporting plate is U-shaped, so that the bearing capacity of the switch supporting plate can be effectively improved.

As an embodiment of the present invention, the switch supporting plate includes a first horizontal plate at the top, a second horizontal plate at the bottom, and a vertical plate connecting the first horizontal plate and the second horizontal plate. So, support piece can set up on first diaphragm, and support piece's atress is transmitted the riser by first diaphragm, and the riser transmits again for the second diaphragm, finally all transmits on the box.

As an embodiment of the present invention, a through hole for allowing a supporting member to pass through is formed in the first transverse plate, and the supporting member passes through the through hole and is fixed to the first transverse plate by two first nuts. So, support piece is fixed on first diaphragm through two first nuts through passing the through-hole, can improve support piece's stability.

As an embodiment of the present invention, the top end of the supporting member is provided with an external thread, and the switch supporting mechanism further includes a second nut, the second nut being engaged with the external thread, the second nut being configured to adjust a supporting height of the supporting member when the second nut is rotated. Therefore, the support height of the support piece can be adjusted by rotating the second nut, and the adaptability of the switch support mechanism is improved.

As an embodiment of the present invention, two ends of the switch supporting plate are respectively connected to the left box plate and the right box plate through a positioning plate, one end of the positioning plate is connected to the switch supporting plate, and the other end of the positioning plate is connected to the left box plate or the right box plate. Therefore, two ends of the switch supporting plate are respectively connected with the left box plate and the right box plate through a positioning plate, and the switch supporting plate is convenient to connect with the left box plate and the right box plate.

In one embodiment of the present invention, the positioning plate has an L-shaped cross section. So, the cross sectional shape through the locating plate is L shape, and half of locating plate is connected with the switch backup pad, and half of locating plate is connected with left boxboard or right boxboard, improves the joint strength of locating plate.

In order to achieve the above object, the inventor further provides a ring main unit, including any one of the ring main unit air boxes provided by the inventor.

Be different from prior art, the technical scheme's of this application looped netowrk cabinet, support piece can support isolator one end or the bottom of the other end, transmits isolator's gravity for left boxboard, right boxboard by the switch backup pad to can effectively improve isolator's holding power, avoid isolator's bottom to move down, and lead to the problem of the whole inefficacy of looped netowrk cabinet.

The above description of the present invention is only an overview of the technical solutions of the present application, and in order to make the technical solutions of the present application more clearly understood by those skilled in the art, further, the present invention can be implemented according to the contents described in the text and the drawings of the present application, and in order to make the above objects, other objects, features, and advantages of the present application more easily understood, the following description will be made in conjunction with the detailed description of the present application and the drawings.

Drawings

The drawings are only for purposes of illustrating the principles, implementations, applications, features, and effects of particular embodiments of the present application, as well as others related thereto, and are not to be construed as limiting the application.

In the drawings of the specification:

fig. 1 is a three-dimensional structural view of a ring main unit air box according to an embodiment of the present application;

fig. 2 is an inside elevation view of a ring main unit air box according to an embodiment of the present application;

fig. 3 is a schematic internal view of a ring main unit air box according to an embodiment of the present application;

fig. 4 is an internal schematic view of another angle of the ring main unit air box according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a switch support mechanism according to an embodiment of the present application.

The reference numerals referred to in the above figures are explained below:

11. the front box plate is arranged on the front box plate,

12. a rear sealing plate is arranged on the back side of the frame,

13. the left box plate is arranged on the left box plate,

14. the right box plate is provided with a right box plate,

2. the isolation switch is connected with the power supply and the power supply,

21. a rear wall plate of the isolating switch bracket,

22. a front wall board of the isolating switch bracket,

31. a switch supporting plate is arranged on the switch supporting plate,

311. a first transverse plate is arranged on the bottom of the frame,

312. the second transverse plate is arranged on the second side of the frame,

313. a vertical plate is arranged on the upper surface of the base,

32. the support part is provided with a plurality of supporting parts,

33. a first nut is arranged on the first side of the nut,

34. a second nut is arranged on the first nut,

35. a positioning plate is arranged on the base plate,

4. an operating mechanism of the circuit breaker is provided,

5. three station mechanisms.

Detailed Description

In order to explain in detail possible application scenarios, technical principles, practical embodiments, and the like of the present application, the following detailed description is given with reference to the accompanying drawings in conjunction with the listed embodiments. The embodiments described herein are merely for more clearly illustrating the technical solutions of the present application, and therefore, the embodiments are only used as examples, and the scope of the present application is not limited thereby.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase "an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or related to other embodiments specifically defined. In principle, in the present application, the technical features mentioned in the embodiments can be combined in any manner to form a corresponding implementable technical solution as long as there is no technical contradiction or conflict.

Unless otherwise defined, technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the use of relational terms herein is intended only to describe particular embodiments and is not intended to limit the present application.

In the description of the present application, the term "and/or" is a expression for describing a logical relationship between objects, meaning that three relationships may exist, for example a and/or B, meaning: there are three cases of A, B, and both A and B. In addition, the character "/" herein generally indicates that the former and latter associated objects are in a logical relationship of "or".

In this application, terms such as "first" and "second" are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

Without further limitation, in this application, the use of "including," "comprising," "having," or other similar expressions in phrases and expressions of "including," "comprising," or "having," is intended to cover a non-exclusive inclusion, and such expressions do not exclude the presence of additional elements in a process, method, or article that includes the recited elements, such that a process, method, or article that includes a list of elements may include not only those elements but also other elements not expressly listed or inherent to such process, method, or article.

As is understood in the examination of the guidelines, the terms "greater than", "less than", "more than" and the like in this application are to be understood as excluding the number; the expressions "above", "below", "within" and the like are understood to include the present numbers. In addition, in the description of the embodiments of the present application, "a plurality" means two or more (including two), and expressions related to "a plurality" similar thereto are also understood, for example, "a plurality of groups", "a plurality of times", and the like, unless specifically defined otherwise.

In the description of the embodiments of the present application, spatially relative expressions such as "central," "longitudinal," "lateral," "length," "width," "thickness," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used, and the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the specific embodiments or drawings and are only for convenience of describing the specific embodiments of the present application or for the convenience of the reader, and do not indicate or imply that the device or component in question must have a specific position, a specific orientation, or be constructed or operated in a specific orientation and therefore should not be construed as limiting the embodiments of the present application.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," "secured," and "disposed" used in the description of the embodiments of the present application are to be construed broadly. For example, the connection can be a fixed connection, a detachable connection, or an integrated arrangement; it can be a mechanical connection, an electrical connection, or a communication connection; they may be directly connected or indirectly connected through an intermediate; which may be communication within two elements or an interaction of two elements. Specific meanings of the above terms in the embodiments of the present application can be understood by those skilled in the art to which the present application pertains in accordance with specific situations.

The inventor finds that in the prior art, one end of the isolating switch is supported by the three-station mechanism, and the other end of the isolating switch is connected to the box body only by the connecting plate.

Therefore, an embodiment of the present application provides a technical solution, please refer to fig. 1 to 5, and the embodiment relates to a ring main unit air box, which includes a box body, an isolation switch 2 and a switch supporting mechanism, wherein the box body includes a left box plate 13 and a right box plate 14; isolator 2 sets up in the box, and switch supporting mechanism is used for supporting isolator 2, and switch supporting mechanism includes switch supporting plate 31 and support piece 32, and the both ends of switch supporting plate 31 are connected with left boxboard 13, right boxboard 14 respectively, and support piece 32 sets up on switch supporting plate 31, and support piece 32 is used for supporting isolator 2's bottom.

In this embodiment, the isolating switch 2 includes an isolating fixed contact and an isolating movable contact, and the isolating fixed contact and the isolating movable contact are switched on and off with each other, so as to isolate the current.

In this embodiment, be used for supporting isolator 2 through the switch supporting mechanism, the switch supporting mechanism includes switch supporting plate 31 and support piece 32, and the both ends of switch supporting plate 31 are connected with left boxboard 13, right boxboard 14 respectively, and support piece 32 sets up on switch supporting plate 31, and support piece 32 is used for supporting isolator 2's bottom. So, support piece 32 can support isolator 2 one end or the bottom of the other end, transmits isolator 2's gravity by switch support plate 31 for left boxboard 13, right boxboard 14 to can effectively improve isolator 2's holding power, avoid isolator 2's bottom to move down, and lead to the problem of looped netowrk cabinet whole failure.

In some embodiments, as shown in fig. 3, the tank further includes a front tank board 11 and a rear closing board 12, the disconnector 2 includes a disconnector bracket rear wall board 21, the disconnector bracket rear wall board 21 is connected to the rear closing board 12, a switch support board 31 is located below the disconnector bracket rear wall board 21, and a support 32 is used for supporting the bottom of the disconnector bracket rear wall board 21. So, isolator support back wall board 21 is connected with preceding boxboard 11, and on isolator support back wall board 21's gravity can transmit back shrouding 12, can support isolator support back wall board 21 through support piece 32, avoids isolator support back wall board 21 bottom to move down.

In this embodiment, isolator 2 still includes isolator support front wall panel 22, and isolator support front wall panel 22 is connected with preceding boxboard 11, and isolator support front wall panel 22 mutually supports with isolator support back wall panel 21 and is used for bearing isolator 2.

In some embodiments, as shown in fig. 4 and 5, two or more supporting members 32 are disposed on the switch supporting plate 31, the two or more supporting members 32 are disposed along the horizontal direction, and the two or more supporting members 32 are respectively located at different positions of the bottom of the disconnecting switch 2. In this way, the two or more support members 32 can support different positions of the bottom of the disconnector 2, respectively, and further improve the supporting force for the disconnector 2.

In some embodiments, switch support plate 31 is U-shaped in cross-section. Thus, the sectional shape of the switch support plate 31 is U-shaped, so that the bearing capacity of the switch support plate 31 can be effectively improved.

In some embodiments, the switch support plate 31 includes a first horizontal plate 311 at the top, a second horizontal plate 312 at the bottom, and a vertical plate 313 connecting the first and second horizontal plates 311 and 312. Thus, the supporting member 32 can be disposed on the first horizontal plate 311, the stress of the supporting member 32 is transmitted from the first horizontal plate 311 to the vertical plate 313, and the vertical plate 313 is transmitted to the second horizontal plate 312, and finally transmitted to the box body.

In some embodiments, the first horizontal plate 311 is provided with a through hole for allowing the supporting member 32 to pass through, and the supporting member 32 passes through the through hole and is fixed on the first horizontal plate 311 by two first nuts 33. In this way, the support member 32 is fixed on the first transverse plate 311 by passing through the through hole and passing through the two first nuts 33, so that the stability of the support member 32 can be improved.

In some embodiments, the top end of the support member 32 is provided with an external thread, and the switch support mechanism further comprises a second nut 34, the second nut 34 being engaged with the external thread, the second nut 34 being configured to adjust the support height of the support member 32 when the second nut 34 is rotated. In this way, the support height of the support member 32 can be adjusted by rotating the second nut 34, and the adaptability of the switch support mechanism is improved.

In some embodiments, the switch supporting plate 31 is connected to the left box plate 13 and the right box plate 14 at two ends thereof through a positioning plate 35, one end of the positioning plate 35 is connected to the switch supporting plate 31, and the other end of the positioning plate 35 is connected to the left box plate 13 or the right box plate 14. Therefore, two ends of the switch supporting plate 31 are respectively connected with the left box plate 13 and the right box plate 14 through a positioning plate 35, and the switch supporting plate 31 is conveniently connected with the left box plate 13 and the right box plate 14.

In some embodiments, the positioning plate 35 has an L-shaped cross-sectional shape. So, be L shape through the cross sectional shape of locating plate 35, half of locating plate 35 is connected with switch support plate 31, and half of locating plate 35 is connected with left boxboard 13 or right boxboard 14, improves locating plate 35's joint strength.

The embodiment also relates to a ring main unit which comprises a ring main unit air box, a circuit breaker operating mechanism 4 and a three-station mechanism 5, wherein the three-station mechanism 5 is used for rotating three movable disconnecting switches 2 of the disconnecting switches 2, and the circuit breaker operating mechanism 4 is used for controlling the vacuum switches to move downwards and upwards. The circuit breaker operating mechanism 4 and the three-position mechanism 5 are conventional technical means, and will not be described in a repeated manner.

Vacuum circuit breakers mainly comprise three major parts: vacuum interrupter, electromagnetism or spring operating mechanism, support and other parts. The working principle of the vacuum circuit breaker is as follows: when the moving contact and the static contact are switched off under the action of the operating mechanism, electric arcs are generated between the contacts, steam is volatilized from the surfaces of the contacts at high temperature, a magnetic field is generated when current passes through the contacts due to the special shape of the contacts, the electric arcs rapidly move along the tangential direction of the surfaces of the contacts under the action of the magnetic field, partial metal steam is condensed on the metal cylinder (shielding cover), the electric arcs are extinguished when the electric arcs naturally pass through zero, and the medium strength between the contacts is rapidly recovered.

Be different from prior art, the technical scheme's of this application looped netowrk cabinet, support piece 32 can support the bottom of isolator 2 one end or the other end, transmits isolator 2's gravity for left boxboard 13, right boxboard 14 by switch backup pad 31 to can effectively improve the holding power to isolator 2, avoid isolator 2's bottom to move down, and lead to the problem of the whole inefficacy of looped netowrk cabinet.

It should be noted that, although the above embodiments have been described herein, the scope of the present invention is not limited thereby. Therefore, based on the innovative concepts of the present invention, the technical solutions of the present invention can be directly or indirectly applied to other related technical fields by making changes and modifications to the embodiments described herein, or by using equivalent structures or equivalent processes performed in the content of the present specification and the attached drawings, which are included in the scope of the present patent.

Claims (10)

1. A ring main unit gas tank is characterized by comprising

The box body comprises a left box plate and a right box plate;

the isolating switch is arranged in the box body; and

the switch supporting mechanism is used for supporting the isolating switch and comprises a switch supporting plate and a supporting piece, the two ends of the switch supporting plate are respectively connected with the left box plate and the right box plate, the supporting piece is arranged on the switch supporting plate, and the supporting piece is used for supporting the bottom of the isolating switch.

2. The ring main unit air box of claim 1, wherein the switch supporting plate is provided with more than two supporting members, the more than two supporting members are arranged along a horizontal direction, and the more than two supporting members are respectively located at different positions of the bottom of the isolating switch.

3. The ring main unit gas box of claim 1, wherein the box body further comprises a front box plate and a rear sealing plate, the isolator includes an isolator bracket rear wall plate, the isolator bracket rear wall plate is connected with the rear sealing plate, the switch support plate is located below the isolator bracket rear wall plate, and the support member is used for supporting the bottom of the isolator bracket rear wall plate.

4. The ring main unit air box of claim 1, wherein the switch support plate is U-shaped in cross-section.

5. The ring main unit gas box of claim 4, wherein the switch support plate comprises a first transverse plate at the top, a second transverse plate at the bottom, and a vertical plate connecting the first and second transverse plates.

6. The ring main unit air box according to claim 5, wherein the first cross plate is provided with a through hole for allowing a supporting member to pass through, and the supporting member passes through the through hole and is fixed on the first cross plate through two first nuts.

7. The ring main unit air box as claimed in claim 6, wherein the top end of the supporting member is provided with an external thread, the switch supporting mechanism further includes a second nut, the second nut is matched with the external thread, and the second nut is configured to adjust a supporting height of the supporting member when the second nut is rotated.

8. The ring main unit air box according to any one of claims 1 to 7, wherein two ends of the switch supporting plate are respectively connected with the left box plate and the right box plate through a positioning plate, one end of the positioning plate is connected with the switch supporting plate, and the other end of the positioning plate is connected with the left box plate or the right box plate.

9. The ring main unit air box of claim 8, wherein the cross-sectional shape of the positioning plate is L-shaped.

10. A ring main unit, comprising: the ring main unit air box of any one of claims 1 to 9.

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