CN223527618U - Compact centrally installed switchgear - Google Patents
Compact centrally installed switchgearInfo
- Publication number
- CN223527618U CN223527618U CN202422659781.7U CN202422659781U CN223527618U CN 223527618 U CN223527618 U CN 223527618U CN 202422659781 U CN202422659781 U CN 202422659781U CN 223527618 U CN223527618 U CN 223527618U
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- CN
- China
- Prior art keywords
- busbar
- phase
- cabinet
- sleeve
- instrument door
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
本实用新型涉及电气设备技术领域，具体为一种紧凑型中置柜，包括柜体和设于柜体正面的仪表门，在柜体内设有母线室，母线室内设有竖向布置的母排；在仪表门和柜体设有限制仪表门开启角度的限位机构。本实用新型提供了一种结构紧凑的中置柜，可在满足相间安全距离的要求下减少柜体宽度，可更好地适用于空间紧张的配电环境，实用性强；同时柜门开启角度可限位及调整，避免仪表门碰撞损坏。
This utility model relates to the field of electrical equipment technology, specifically a compact center-mounted switchgear, including a cabinet body and an instrument door located on the front of the cabinet body. A busbar compartment is provided inside the cabinet body, and vertically arranged busbars are located within the busbar compartment. A limiting mechanism is provided on both the instrument door and the cabinet body to restrict the opening angle of the instrument door. This utility model provides a compact center-mounted switchgear that reduces the cabinet width while meeting phase-to-phase safety distance requirements, making it better suited for space-constrained power distribution environments and highly practical. Simultaneously, the opening angle of the cabinet door can be limited and adjusted to prevent damage to the instrument door from collisions.
Description
Technical Field
The utility model relates to the technical field of electrical equipment, in particular to a compact centrally installed switchgear.
Background
The width of the existing 10KV centrally installed switchgear is usually designed to be 800 or 1000mm so as to meet the industry standard that the air space is not smaller than 125 mm. However, in some use environments, the limited space is limited by field conditions, so that the distribution equipment needs to be arranged as much as possible in the limited space, and the width of the centrally installed switchgear needs to be as small as possible, so that the centrally installed switchgear with the width of 550mm is provided, and the requirement of arranging the distribution equipment as much as possible by utilizing the limited space can be met.
However, if a plurality of 10KV centrally installed cabinets are arranged transversely according to the conventional method, the widths of the cabinets are reduced, the distances between the main rows of different cabinets are reduced, the safety requirement of the distance of 125mm can not be met, and therefore, composite insulating materials are required to be added, the cost is additionally increased, meanwhile, the composite insulating materials have ageing risks, the insulating performance can not meet the safety requirement in the use process, and potential safety hazards exist.
Meanwhile, the instrument door of the centrally installed switchgear is provided with various electric instruments, if the opening angle of the instrument door is too large, the instrument door is easy to open excessively, and the instrument door can collide with an adjacent switch cabinet to damage the instrument.
Disclosure of utility model
The utility model solves the technical problem of providing a compact centrally installed switchgear which has smaller width of the switchgear body under the requirement of meeting safety interval distance, can be better suitable for a limited environment, and meanwhile, an instrument door is provided with a limiting mechanism of an opening angle, so that collision between the excessive opening angle and an adjacent switchgear body is avoided.
The basic scheme provided by the utility model is as follows:
The utility model provides a put cabinet in compact, includes the cabinet body and locates the positive instrument door of cabinet body, the internal bus-bar room that is equipped with of cabinet, be equipped with vertical busbar in the bus-bar room, instrument door and cabinet body are equipped with the stop gear who limits instrument door opening angle.
Further, the busbar comprises an A-phase busbar, a B-phase busbar and a C-phase busbar, wherein an A-phase extraction row interface, a B-phase extraction row interface and a C-phase extraction row interface are arranged on the side face of the busbar chamber, an opening for the busbar to pass through is arranged on the side face of the cabinet body, a breaker chamber is arranged in the cabinet body, an A-phase contact box, a B-phase contact box and a C-phase contact box are arranged on a back plate of the breaker chamber, the A-phase busbar is respectively connected with the A-phase contact box and the A-phase extraction row interface, the B-phase busbar is respectively connected with the B-phase contact box and the B-phase extraction row interface, and the C-phase busbar is respectively connected with the C-phase contact box and the C-phase extraction row interface.
Further, the phase A busbar comprises a first vertical connection row and a first horizontal connection row, the phase B busbar comprises a second vertical connection row and a second horizontal connection row, and the phase C busbar comprises a third horizontal connection row, a third vertical connection row and a fourth horizontal connection row.
Further, the cross-sectional dimensions of the busbar are 60mm by 10mm.
Further, the current-carrying capacity of the busbar is not lower than 1250A.
Further, the spacing between the phase A busbar, the phase B busbar and the phase C busbar is not smaller than 125mm.
Further, the busbar and the cabinet body are insulated by using a threading sleeve.
Further, stop gear includes limiting plate, spacing spout, first connecting portion and second connecting portion, instrument door inboard lower part is equipped with horizontally first installation strip, the right-hand member of first installation strip is equipped with the mounting hole, the lower part of the cabinet body is equipped with the second installation strip of falling L type cross-section, spacing spout sets up in the horizontal plane of second installation strip, the both ends of limiting plate are equipped with the trompil, and first connecting portion and mounting hole and first installation strip swing joint are passed through to the one end of limiting plate, the other end of limiting plate passes through second connecting portion and spacing spout swing joint, and when instrument door did not reach maximum opening angle, the second connecting portion can remove in spacing spout, and when instrument door reached maximum opening angle, the second connecting portion was fixed in spacing spout.
The first connecting part comprises a first nut and a step bolt, the step bolt comprises a step part and a stud, the stud penetrates through an opening at one end of a limiting plate and a mounting hole of a first mounting bar to be connected with the first nut, the diameter of the step part is larger than that of the opening of the limiting plate, the second connecting part comprises a second nut, a step sleeve and a bolt, the step sleeve comprises a first sleeve, a second sleeve and a trapezoid transition part with different diameters, the bolt sequentially penetrates through the step sleeve and an opening at the other end of the limiting plate to be connected with the second nut, the limiting chute comprises a strip chute and a tail end opening, the width of the strip chute is larger than the outer diameter of the second sleeve and smaller than the outer diameter of the first sleeve, and the diameter of the tail end opening is larger than the outer diameter of the first sleeve.
Further, the right end mounting holes of the first mounting bar are 3, and the mounting holes are arranged at intervals along the horizontal direction of the first mounting bar.
The utility model has the principle and advantages that the mode of arranging the busbar generally horizontally is changed into vertical arrangement, the structural size design of each phase busbar is matched, the width of the centrally installed switchgear is effectively reduced while the safety distance between phases is ensured, the width of the centrally installed switchgear adopting the vertical busbar can be 550mm, more centrally installed switchgears can be arranged under the condition of limited space of a power distribution room, and the capacity of the power distribution system is improved. Meanwhile, the adjacent centrally installed cabinets can be arranged in close proximity, enough electrical safety distance is ensured, composite insulating materials are not required to be added, the use cost is reduced, and potential safety hazards caused by ageing of the composite insulating materials can be avoided.
Meanwhile, the application also designs a limiting mechanism of the opening angle of the instrument door, which can prevent the instrument door from being damaged due to collision between the excessive opening angle of the instrument door and the adjacent cabinet body.
Drawings
Fig. 1 is a left front side view of a mid-ambry;
FIG. 2 is a right front side view of a vertical bus;
FIG. 3 is a schematic view of a vertical bus bar;
FIG. 4 is a schematic view of the structure of the instrument door check mechanism;
FIG. 5 is a schematic diagram of the connection of the limiting plate;
fig. 6 is a schematic structural view of the step sleeve.
Detailed Description
The conventional centrally installed switchgear is divided into a low-current centrally installed switchgear and a high-current centrally installed switchgear. The large-current middle cabinet is a middle cabinet with rated current of 2000A and above, the cabinet width is 1000mm, the small-current middle cabinet is a middle cabinet with rated current of 1250A and below, and the cabinet width is 800mm. The safe electric distance of not less than 125mm is ensured among the phases of the centrally installed switchgear. Because the distribution room area is limited, when the power system installed in one distribution room comprises a large number of centrally installed cabinets, the overall arrangement width of the centrally installed cabinets is easy to exceed the width range of the distribution room.
The following is a further detailed description of the embodiments:
The marks in the drawing of the specification comprise an instrument room 1, a bus bar room 2, an outgoing line interface 3, a first vertical connection line 4, a threading sleeve 5, a first horizontal connection line 6, a second horizontal connection line 7, a second vertical connection line 8, a fourth horizontal connection line 9, a third vertical connection line 10, a third horizontal connection line 11, a contact box 12, an instrument door 13, a first mounting bar 14, a first connecting part 15, a limiting plate 16, a second mounting bar 17, a limiting chute 18, a second connecting part 19, a first nut 20, a step bolt 21, a second nut 22, a step sleeve 23, a bolt 24, a first sleeve 25, a transition part 26 and a second sleeve 27.
Example 1
As shown in fig. 1, the centrally installed switchgear includes a cabinet body and an instrument door 13 disposed on the front surface of the cabinet body. Wherein, the cabinet body is internally provided with an instrument room 1, a breaker room, a bus room 2 and a cable room. The upper part of the front surface of the cabinet body is an instrument room 1, the lower part is a breaker room, the upper part of the back surface of the cabinet body is a bus room 2, and the lower part is a cable room.
The back plate of the breaker chamber is provided with a contact box 12 comprising an a-phase contact box, a B-phase contact box and a C-phase contact box.
The busbar chamber 2 is internally provided with a busbar which is vertically arranged and comprises an A-phase busbar, a B-phase busbar and a C-phase busbar, and the structure is shown in figure 3. The phase A busbar comprises a first vertical connecting row 4 and a first horizontal connecting row 6, the first vertical connecting row 4 is of a vertical L shape, the lower end of the first vertical connecting row 4 is connected with the phase A contact box, the upper end of the first vertical connecting row 4 is bent backwards by 90 degrees to form a first bent part, the tail end of the first bent part is bent in the left side of the horizontal direction by 90 degrees and is connected with the left end of the first horizontal connecting row 6 through a screw, the phase B busbar comprises a second vertical connecting row 8 and a second horizontal connecting row 7, the second vertical connecting row 8 is of a vertical L shape, the lower end of the second vertical connecting row 8 is connected with the phase B contact box, the upper end of the second bent part is bent backwards by 90 degrees to form a second bent part, the tail end of the second bent part is bent in the right side of the horizontal direction by 90 degrees and is connected with the left end of the second horizontal connecting row 7 through a screw, the phase C busbar comprises a third horizontal connecting row 11, a third vertical connecting row 10 and a fourth horizontal connecting row 9, the left end of the third horizontal connecting row 11 is connected with the phase C contact box through a screw, and the right end of the third vertical connecting row 10 is bent in the left side of the horizontal direction by 90 degrees to form a third bent part, and the third bent part is connected with the left horizontal connecting row through the left end of the third horizontal connecting row through a screw. The first vertical connection row 4 is fixed on the outer side of the backboard of the instrument room 1 through a bus bar clamp, the third horizontal connection row 11 is fixed on the inner side of the backboard of the middle cabinet through a bus bar clamp, so that the bus bar structural strength can be effectively improved, and the heat stability and the dynamic stability of the bus bar are enhanced.
The cabinet body side plate of the bus room 2 is provided with a plurality of openings, the right end of the first horizontal connecting row 6, the right end of the second horizontal connecting row 7 and the right end of the third horizontal connecting row 11 respectively penetrate through the corresponding side plate openings to form an outgoing row interface 3, and the outgoing row interface comprises an A-phase outgoing row interface, a B-phase outgoing row interface and a C-phase outgoing row interface, and insulation isolation is carried out between the connecting rows and the cabinet body openings through a threading sleeve 5 as shown in fig. 2.
The cross-sectional dimension of the connecting row is 60mm by 10mm, and the bearing current capacity is not lower than 1250A.
The distance between each contact box and each phase busbar is not less than 125mm.
Meanwhile, the front surface of the centrally installed switchgear is also provided with a limiting structure of the instrument door 13, as shown in fig. 4.
The lower part of the inner side of the instrument door 13 is provided with a horizontal first mounting bar 14, and the right end of the first mounting bar 14 is provided with 3 mounting holes which are distributed at intervals. The lower part of the cabinet opening is provided with a second mounting bar 17 with an inverted L-shaped section.
The instrument door limiting structure comprises a limiting plate 16, a limiting chute 18, a first connecting portion 15 and a second connecting portion 19. The limiting sliding groove 18 is arranged on the horizontal plane of the second mounting bar 17, and the limiting sliding groove 18 comprises a bar-shaped sliding groove and an opening with the diameter of the tail end of the sliding groove being increased. Both ends of the limiting plate 16 are provided with openings, one end of the limiting plate is movably connected with the first mounting strip 14 through the first connecting portion 15 and a right side mounting hole of the first mounting strip 14, and the other end of the limiting plate is movably connected with the limiting chute 18 through the second connecting portion 19.
The first connecting portion 15 includes a first nut 20 and a step bolt 21, the structure of which is shown in fig. 5. The step bolt 21 includes a stud portion with a smaller diameter and a step portion with an increased diameter, the diameter of the stud is smaller than the diameter of the opening of the limiting plate 16, the diameter of the step portion is larger than the diameter of the opening of the limiting plate 16, the stud portion of the step bolt 21 sequentially passes through the opening of the limiting plate 16, the right side mounting hole of the first mounting bar 14 is connected with the first nut 20, the first nut 20 and the step bolt 21 movably connect the limiting plate 16 with the first mounting bar 14, and the limiting plate 16 can rotate along the axis of the step bolt 21 along with the opening angle change of the instrument door 13.
The second connection portion 19 includes a second nut 22, a stepped sleeve 23, and a bolt 24, and is structured as shown in fig. 5. The stepped sleeve 23 is configured as shown in fig. 6, and includes a first sleeve 25 having a larger upper diameter, a second sleeve 27 having a smaller lower diameter, and a middle trapezoidal transition portion 26. The bolt 24 passes through the step sleeve 23 and the hole at the other end of the limiting plate 16 in sequence and is connected with the second nut 22.
The width of the bar-shaped chute of the limit chute 18 is larger than the outer diameter of the second sleeve 27 and smaller than the outer diameter of the first sleeve 25, and the diameter of the end opening is larger than the outer diameter of the first sleeve 25. That is, the second connecting portion 19 has different diameters, the diameter of the middle portion is the smallest, the diameter of the second sleeve 27 is the outer diameter, the diameter of the upper portion and the diameter of the lower portion are larger, the diameter of the first sleeve 25 and the diameter of the nut are respectively larger than the width of the bar-shaped chute, therefore, the middle portion of the second connecting portion 19 is clamped in the bar-shaped chute, and the upper portion and the lower portion of the second connecting portion 19 are respectively clamped at the upper end and the lower end of the bar-shaped chute. The second connecting portion 19 correspondingly slides in the bar-shaped chute as the opening angle of the instrument door 13 changes. When the instrument door 13 is opened to a preset maximum angle, the second connecting portion 19 will slide to the end opening of the limiting chute 18, and since the diameter of the end opening is larger than the outer diameter of the first sleeve 25, the first sleeve 25 will fall into the end opening to limit the second connecting portion 19, so as to fix the limiting plate 16, and since the limiting plate 16 pulls in the opposite direction, the instrument door 13 is limited at this time, and the opening angle cannot be increased.
The right side of the first mounting bar 14 is provided with 3 mounting holes, and the limiting plate 16 is mounted on different hole sites, so that different maximum opening angle limits can be obtained.
In actual use, when the opening angle of the instrument door 13 is gradually increased, the second connecting part 19 moves in the limiting chute 18 towards the direction of the terminal opening, and falls into the terminal opening when reaching the preset opening angle, the second connecting part 19 is limited by the limitation of the terminal opening, the position of the limiting rod 16 and the opening angle of the instrument door 13 are correspondingly limited, and if the instrument door 13 needs to be closed, the second connecting part 19 is lifted upwards, so that the first sleeve 25 is separated from the terminal opening, and the instrument door can be pushed.
Through the design, the width of the cabinet body of the centrally installed switchgear can be reduced to 550m, meanwhile, the electrical safety distance between each two phases can meet the standard requirement of 125mm, the narrower cabinet body width is favorable for being used in a power distribution room with limited space, more centrally installed switchgear can be arranged in the same space, and the overall capacity of a power distribution system is improved. Meanwhile, the adjacent centrally installed cabinets do not need to be added with insulating materials, and the system cost can be effectively reduced. The instrument door has adjustable maximum angle restriction when opening, avoids instrument door to bump with adjacent cabinet body and causes the damage.
The foregoing is merely exemplary of the present utility model, and specific structures and features well known in the art will not be described in detail herein, so that those skilled in the art will be aware of all the prior art to which the present utility model pertains, and will be able to ascertain the general knowledge of the technical field in the application or prior art, and will not be able to ascertain the general knowledge of the technical field in the prior art, without using the prior art, to practice the present utility model, with the aid of the present utility model, to ascertain the general knowledge of the same general knowledge of the technical field in general purpose. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent. The protection scope of the present utility model is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422659781.7U CN223527618U (en) | 2024-10-31 | 2024-10-31 | Compact centrally installed switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422659781.7U CN223527618U (en) | 2024-10-31 | 2024-10-31 | Compact centrally installed switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223527618U true CN223527618U (en) | 2025-11-07 |
Family
ID=97528030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422659781.7U Active CN223527618U (en) | 2024-10-31 | 2024-10-31 | Compact centrally installed switchgear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223527618U (en) |
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2024
- 2024-10-31 CN CN202422659781.7U patent/CN223527618U/en active Active
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| GR01 | Patent grant |