CN219892797U - Switch cabinet - Google Patents

Abstract

The embodiment of the utility model provides a switch cabinet, and relates to the technical field of power. The switch cabinet comprises a bus chamber, a switch chamber and a back cabinet. The switch room sets up in the one side of bus-bar room, and the switch room has first pressure release passageway, and the back of the body cabinet sets up in the opposite side of bus-bar room, and the back of the body cabinet has the second pressure release passageway with bus-bar room intercommunication. Through the setting of back of body cabinet, the pressure in the bus-bar room also can be discharged through the second pressure release passageway of back of body cabinet to can avoid the incident that is difficult to discharge because of the pressure and arouse.

Description

Switch cabinet

Technical Field

The utility model relates to the technical field of power, in particular to a switch cabinet.

Background

Along with the popularization of intelligent power grids, related intelligent equipment is urgently required in the market, and intelligent transformation of a traditional transformer substation and intelligent application of a newly designed transformer substation are imperative. A switchgear is one of the most commonly used devices in the power field, the reliability, operability, safety of which directly affect the safe operation and fault prevention of the power system. The switch cabinet is commonly used for power generation, power distribution and electric energy conversion of a power system, and plays roles of on-off, control or protection.

The inventor researches and discovers that the pressure relief channel in the existing switch cabinet is arranged in the bus chamber, but when rated current loaded in the switch cabinet is larger than 1600A, and the wall bushing inside the bus chamber is in special-shaped arrangement, the wall bushing occupies the position of the pressure relief channel of the bus chamber, and when the switch cabinet fails, the internal pressure is difficult to discharge.

Disclosure of Invention

The utility model aims to provide a switch cabinet, which can ensure that the arc-burning pressure inside the switch cabinet can be discharged out of the switch cabinet.

Embodiments of the present utility model are implemented as follows:

in a first aspect, the present utility model provides a switchgear comprising:

a bus bar chamber;

the switch chamber is arranged at one side of the bus chamber and is provided with a first pressure relief channel;

the back cabinet is arranged on the other side of the bus chamber and is provided with a second pressure relief channel communicated with the bus chamber.

Through the arrangement, the pressure in the bus chamber can be discharged through the second pressure release channel of the back cabinet, so that safety accidents caused by difficult discharge of the pressure can be avoided.

In an alternative embodiment, the bus bar chamber is provided with a three-phase bus bar and three wall penetrating sleeves, the three wall penetrating sleeves penetrate the bus bar chamber and are arranged at intervals, and the three-phase bus bar is respectively connected with the three wall penetrating sleeves.

Through above-mentioned setting, can effectually guarantee the insulating interval between the female row of three-phase.

In an alternative embodiment, the wall penetrating sleeve comprises a body and a fixing piece which are connected, the fixing piece is detachably connected with the bus bar chamber, the fixing piece is provided with a matching hole for the body to penetrate, and the bus bar is connected with the body.

Through the arrangement, when the wall penetrating sleeve is damaged, the wall penetrating sleeve can be replaced, the whole device does not need to be replaced, and certain cost can be saved.

In an alternative embodiment, any two wall penetrating bushings are arranged at intervals in the length direction of the bus bar chamber, and any two wall penetrating bushings are arranged at intervals in the width direction of the bus bar chamber.

Through the arrangement, under the condition that the three-phase busbar connected with the three wall penetrating sleeves is guaranteed to have enough insulation distance, the width and length space of the busbar chamber can be saved.

In an alternative embodiment, three wall bushings are arranged in the bus bar chamber, the three-phase busbar is respectively connected with the three wall bushings, the three wall bushings are sequentially arranged at intervals along the height direction of the bus bar chamber, and the three wall bushings pass through preset straight lines.

Through the arrangement, the space in the width direction and the length direction of the bus room can be effectively saved, and wiring of the bus room cable is facilitated.

In an alternative embodiment, the switch cabinet further comprises a grounding switch, wherein the grounding switch is located in the bus bar chamber and connected with the bus bar.

Through the arrangement, the personal safety of operators in the face of an abnormal event can be effectively guaranteed.

In an alternative embodiment, the switchgear further comprises an instrument room, which is located on the side of the switchgear remote from the busbar room.

Through the arrangement, operators can observe the voltage and other conditions of the switch cabinet through the instrument room conveniently.

In an alternative embodiment, the back cabinet is provided with a cover plate for closing the second pressure relief channel and the cover plate can be lifted by a preset pressure.

Through the arrangement, external dust can be prevented from entering the bus chamber through the second pressure relief channel.

In an alternative embodiment, one side of the cover plate is rotatably arranged on the back cabinet.

Through the arrangement, operators can conveniently cover the cover plate on the second pressure relief channel manually.

In an alternative embodiment, at least one of the back cabinet, the busbar chamber and the switch chamber has a visual window.

Through the arrangement, operators can observe the conditions in the operators through the visible windows.

The embodiment of the utility model has the beneficial effects that: the switch cabinet provided by the embodiment of the utility model comprises a bus chamber, a switch chamber and a back cabinet. The switch room sets up in the one side of bus-bar room, and the switch room has first pressure release passageway, and the back of the body cabinet sets up in the opposite side of bus-bar room, and the back of the body cabinet has the second pressure release passageway with bus-bar room intercommunication. Through the setting of back of body cabinet, the pressure in the bus-bar room also can be discharged through the second pressure release passageway of back of body cabinet to can avoid the incident that is difficult to discharge because of burning arc pressure.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a switch cabinet according to an embodiment of the present utility model at a first view angle;

fig. 2 is a schematic structural diagram of a switch cabinet according to an embodiment of the present utility model under a second view angle.

Icon 1-switch cabinet; 10-busbar chamber; 11-a wall penetrating sleeve; 111-body; 112-a fixing member; 12-wall bushing; 13-busbar; 14-a grounding switch; 20-switching chamber; 21-a first pressure relief channel; 30-a back cabinet; 31-cover plate; 32-a second pressure relief channel; 40-instrument room.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The specific structure of the switch cabinet 1 and the corresponding technical effects thereof provided by the embodiment of the utility model are described in detail below with reference to the accompanying drawings.

Referring to fig. 1-2, a switchgear 1 according to an embodiment of the present utility model includes a bus bar chamber 10, a switch chamber 20, and a back cabinet 30.

Wherein the switch chamber 20 is disposed on one side of the bus bar chamber 10, the switch chamber 20 has a first pressure relief channel 21, the back cabinet 30 is disposed on the other side of the bus bar chamber 10, and the back cabinet 30 has a second pressure relief channel 32 communicating with the bus bar chamber 10.

It is easy to understand that, since in the present embodiment, the back cabinet 30 is disposed on the side wall of the bus bar chamber 10 and is in communication with the bus bar chamber 10, and the back cabinet 30 has the second pressure release channel 32, it is easy to understand that by disposing the back cabinet 30 on one side of the bus bar chamber 10 and communicating with the bus bar chamber 10, and the second pressure release channel 32 in the back cabinet 30 is in communication with the bus bar chamber 10, even if the wall bushing 12 in the bus bar chamber 10 occupies the position of the pressure release channel of the bus bar chamber 10, the pressure in the bus bar chamber 10 can be discharged through the second pressure release channel 32 of the back cabinet 30, for example, the arcing pressure can be discharged from the second pressure release channel 32 of the back cabinet 30 to the switch cabinet 1, thereby being able to avoid the safety accident caused by the arcing pressure being difficult to discharge.

In this embodiment, since the switching chamber 20 has the first pressure release channel 21, the switching chamber 20 can be smoothly released, so that the safety of the switching chamber 20 is ensured.

Specifically, in the present embodiment, the side of the bus bar chamber 10 to which the back cabinet 30 is connected is opposite to the side of the bus bar chamber 10 to which the switch chamber 20 is connected. It is ensured that the switching chamber 20 is not easily affected at the time of pressure relief.

Further, in the present embodiment, the bus bar chamber 10 has three-phase bus bars 13 and three wall penetrating bushings 11, the three wall penetrating bushings 11 penetrate the bus bar chamber 10 and the three wall penetrating bushings 11 are arranged at intervals, and the three-phase bus bars 13 are respectively connected with the three wall penetrating bushings 11.

It should be noted that, the wall penetrating sleeve 11 is sleeved on the busbar 13 to be connected and fixed with the busbar 13, one end of the wall penetrating sleeve 11 is located in the busbar chamber 10, and the other end of the wall penetrating sleeve 11 is located outside the busbar chamber 10. In the present embodiment, for convenience of user operation, a wall penetrating sleeve 11 is provided to penetrate the top wall of the bus bar compartment 10.

It is easy to understand that the bus bar 13 is exposed out of the outer wall of the bus bar chamber 10 through the wall penetrating sleeve, and the three wall penetrating sleeves 11 are arranged at intervals, so that the insulation distance between the three-phase bus bars 13 can be effectively ensured.

Further, in the present embodiment, the wall penetrating sleeve 11 includes a body 111 and a fixing member 112, the fixing member 112 is detachably connected to the bus bar chamber 10, the fixing member 112 has a mating hole for the body 111 to penetrate, and the bus bar 13 is connected to the body 111.

That is, in this embodiment, the body 111 is sleeved on the busbar 13, and the fixing member 112 is detachably connected to the top wall of the busbar chamber 10, so that when the wall penetrating sleeve 11 is damaged, only the wall penetrating sleeve 11 can be replaced, the whole device does not need to be replaced, and a certain cost can be saved.

The fixing member 112 may be screwed with the bus bar chamber 10 by a threaded fastener, or may be connected by plugging or clamping. The detachable connection of the fixing member 112 and the bus bar compartment 10 is not particularly limited herein.

Specifically, in the present embodiment, any two wall penetrating bushings 11 are disposed at intervals in the length direction of the bus bar chamber 10, and any two wall penetrating bushings 11 are disposed at intervals in the width direction of the bus bar chamber 10. In other words, none of the three wall penetrating bushings 11 is on the same straight line, the three wall penetrating bushings 11 are arranged at intervals in two directions, and the width and length space of the bus bar chamber 10 can be saved while ensuring that the three-phase bus bar 13 connected with the three wall penetrating bushings 11 has enough insulation distance.

Further, in this embodiment, three wall bushings 12 are disposed in the bus bar chamber 10, the three-phase busbar 13 is connected with the three wall bushings 12 respectively, the three wall bushings 12 are sequentially disposed at intervals along the height direction of the bus bar chamber 10, and the three wall bushings 12 pass through a preset straight line.

The height direction of the bus bar chamber 10, the length direction of the bus bar, and the width direction of the bus bar chamber 10 are perpendicular to each other.

Because three wall bushings 12 are arranged at intervals in sequence along the height direction of the bus bar chamber 10 and all pass through preset straight lines, the space in the width direction and the length direction of the bus bar chamber 10 can be effectively saved, and the wiring of cables of the bus bar chamber 10 is facilitated.

Of course, in some alternative embodiments, the three wall bushings 12 may not be limited to the above-mentioned manner, but may be arranged in the bus bar chamber 10 in other manners, so long as the cables in the bus bar chamber 10 can be smoothly routed and the insulation space between the bus bars 13 can be ensured.

Further, in the present embodiment, the switch cabinet 1 further includes a grounding switch 14, and the grounding switch 14 is located in the bus bar chamber 10 and connected to the bus bar 13.

The grounding switch 14 is turned off in a normal operation state, and when an abnormality occurs, the busbar 13 can be grounded through the grounding switch 14 to ensure the safety of operators. Therefore, in the present embodiment, by the arrangement of the ground switch 14, the personal safety of the worker in the face of an abnormal event can be effectively ensured.

Further, in the present embodiment, the switchgear 1 further includes an instrument room 40, and the instrument room 40 is located on a side of the switch room 20 remote from the bus bar room 10. It will be appreciated that by providing the instrument room 40, it is possible to facilitate the operator to observe the voltage or the like of the switch cabinet 1 through the instrument room 40.

Further, in the present embodiment, the back cabinet 30 is provided with a cover plate 31, the cover plate 31 is used for closing the second pressure release channel 32, and the cover plate 31 can be pushed open by a preset pressure.

It is easy to understand that, since the back cabinet 30 is provided with the cover plate 31, the cover plate 31 is covered on the second pressure release channel 32 to close the second pressure release channel 32, so that external dust can be prevented from entering the bus bar chamber 10 through the second pressure release channel 32. And at a preset pressure, it can be pushed open, thereby realizing the pressure release of the bus bar chamber 10.

It should be noted that, referring to fig. 2, in the present embodiment, the opening of the second pressure release channel 32 faces upward, and the preset pressure is a pressure that can open the cover plate 31 during safety pressure release.

Specifically, one side of the cover plate 31 is rotatably disposed on the back cabinet 30, and it can be appreciated that, because one side of the cover plate 31 is rotatably disposed on the back cabinet 30, when the pressure reaches the preset pressure, the cover plate 31 can turn over against the back cabinet 30 to open or close the opening of the second pressure release channel 32. After the pressure relief of the switch cabinet 1 is completed, an operator can manually cover the cover plate 31 on the second pressure relief channel 32.

Further, in some alternative embodiments, at least one of the back cabinet 30, the busbar chamber 10 and the switch chamber 20 has a visual window (not shown in the figures). It will be appreciated that when the back cabinet 30, the bus bar chamber 10 and the switch chamber 20 are provided with visual windows, it is convenient for operators to observe the conditions inside each via the respective visual windows.

Of course, in other alternative embodiments, a visual window may also be provided only in the back cabinet 30, or in the busbar compartment 10 or the switch compartment 20.

Only any two of the back cabinet 30, the bus bar chamber 10 and the switch chamber 20 may be provided with a window.

In summary, the switch cabinet 1 provided in the embodiment of the utility model includes a bus bar chamber 10, a switch chamber 20 and a back cabinet 30. The switch chamber 20 is disposed on one side of the bus bar chamber 10, the switch chamber 20 has a first pressure relief channel 21, the back cabinet 30 is disposed on the other side of the bus bar chamber 10, and the back cabinet 30 has a second pressure relief channel 32 communicating with the bus bar chamber 10. By the arrangement of the back cabinet 30, the pressure in the bus bar chamber 10 can be discharged through the second pressure release channel 32 of the back cabinet 30, so that safety accidents caused by difficult discharge of the arc pressure can be avoided.

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

Claims (10)

1. A switchgear comprising:

a bus bar chamber (10);

a switch chamber (20), wherein the switch chamber (20) is arranged at one side of the bus chamber (10), and the switch chamber (20) is provided with a first pressure release channel (21);

the back cabinet (30), back cabinet (30) set up in the opposite side of busbar room (10), back cabinet (30) have with busbar room (10) intercommunication second pressure release passageway (32).

2. The switchgear as claimed in claim 1, wherein:

the bus room (10) is provided with a three-phase bus bar (13) and three wall penetrating sleeves (11), the three wall penetrating sleeves (11) penetrate through the bus room (10) and are distributed at intervals, and the three-phase bus bar (13) is connected with the three wall penetrating sleeves (11) respectively.

3. The switchgear as claimed in claim 2, wherein:

the wall penetrating sleeve (11) comprises a body (111) and a fixing piece (112) which are connected, the fixing piece (112) is detachably connected with the bus bar chamber (10), the fixing piece (112) is provided with a matching hole for the body (111) to penetrate through, and the busbar (13) is connected with the body (111).

4. The switchgear as claimed in claim 2, wherein:

any two wall penetrating sleeves (11) are arranged at intervals in the length direction of the bus bar chamber (10), and any two wall penetrating sleeves (11) are arranged at intervals in the width direction of the bus bar chamber (10).

5. The switchgear as claimed in claim 2, wherein:

three wall bushings (12) are arranged in the bus chamber (10), the three phases of the bus bars (13) are respectively connected with the three wall bushings (12), the three wall bushings (12) are sequentially arranged at intervals along the height direction of the bus chamber (10), and the three wall bushings (12) pass through preset straight lines.

6. The switchgear as claimed in claim 2, wherein:

the switch cabinet further comprises a grounding switch (14), wherein the grounding switch (14) is positioned in the bus bar chamber (10) and is connected with the bus bar (13).

7. The switchgear as claimed in claim 1, wherein:

the switchgear also comprises an instrument room (40), the instrument room (40) being located on the side of the switchgear room (20) remote from the busbar room (10).

8. The switchgear as claimed in claim 1, wherein:

the back cabinet (30) is provided with a cover plate (31), the cover plate (31) is used for closing the second pressure relief channel (32) and the cover plate (31) can be jacked up by preset pressure.

9. The switchgear as claimed in claim 8, wherein:

one side of the cover plate (31) is rotatably arranged on the back cabinet (30).

10. The switchgear as claimed in claim 1, wherein:

at least one of the back cabinet (30), the busbar chamber (10) and the switch chamber (20) has a visual window.