High-voltage switch cabinet of assembled bus bridge

Abstract

The utility model discloses a high-voltage switch cabinet of a split mounting type bus bridge, and particularly relates to the technical field of power equipment, the high-voltage switch cabinet comprises a first high-voltage switch cabinet body and a second high-voltage switch cabinet body arranged at one side of the first high-voltage switch cabinet body, and a bus bridge is arranged between the top of the first high-voltage switch cabinet body and the top of the second high-voltage switch cabinet body. The bus bridge is composed of a bus bar and an insulator connected to the bottom of the bus bar, and a protective shell is arranged outside the bus bridge. The protective shell comprises a vertical shell installed on the top of the first high-voltage switch cabinet body and the top of the second high-voltage switch cabinet body. The tops of the transverse shells are connected and fixed through the fixing structures, so that integrated connection of the tops of the transverse shells is achieved, the protective shell is kept in a stable state and does not need to be supported by an external hoisting structure, the problem that the hoisting structure occupies a large space is solved, and stability is high.

Description

Technical Field

[0001] This utility model relates to the field of power equipment technology, and more specifically, to a high-voltage switchgear for a modular busbar bridge. Background Technology

[0002] Currently, various high-voltage switchgear are widely used in urban and rural substations. However, the high-voltage busbar bridges in the well-known high-voltage switchgear are large in size and heavy in weight, which is not conducive to splicing and has insufficient self-protection. They also have strict requirements for on-site construction equipment and personnel. This is not only not conducive to the installation of high-voltage busbars, but also affects the protection of the busbar bridge against solid foreign objects, posing a serious threat to the safe operation of high-voltage power distribution.

[0003] A search revealed that Chinese Patent CN206283115U discloses a high-voltage switchgear with an assembled busbar tray. The switchgear consists of two high-voltage switchgear arranged side-by-side, with a high-voltage busbar bridge composed of busbars and insulators between them. The high-voltage busbar bridge is enclosed by a closed busbar tray, which is composed of several assembled panels. A row of fans is located on the top of each of the left and right sides of the closed busbar tray. Both switchgear contain controllers and temperature sensors, and the fans and temperature sensors are connected to the controllers. The closed busbar tray has ventilation holes. The assembled panels are made of epoxy fiberglass cloth. A lifting frame is located in the middle of the closed busbar tray. The technical advantages of this high-voltage switchgear with an assembled busbar tray are convenient and simple installation, automatic heat dissipation, low cost, and an aesthetically pleasing and practical overall structure.

[0004] In the aforementioned high-voltage switchgear with a modular busbar tray, the high-voltage busbar is enclosed by a closed busbar tray, which is a shell structure assembled from several modular panels. In actual use, the shell structure assembled from the modular panels lacks an integrated fixing structure, requiring a hoisting frame structure to support it from the bottom. This necessitates a large space for the hoisting structure installation, which is inconvenient in practical applications. Furthermore, when relocation is required, if the hoisting frame is fixed, manual support from the bottom of the closed busbar tray is still necessary for the relocation operation, which is also inconvenient. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, this utility model provides a high-voltage switchgear with a modular busbar bridge.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-voltage switchgear with a modular busbar bridge, comprising a first high-voltage switchgear cabinet and a second high-voltage switchgear cabinet disposed on one side of the first high-voltage switchgear cabinet, wherein a busbar bridge is disposed between the top of the first high-voltage switchgear cabinet and the second high-voltage switchgear cabinet, the busbar bridge being composed of busbars and insulators connected to the bottom of the busbars, and the busbar bridge being provided with a protective shell on its exterior;

[0007] The protective enclosure includes a vertical enclosure installed on the top of the first high-voltage switchgear cabinet and the second high-voltage switchgear cabinet. Several horizontal enclosures are connected between the tops of the two vertical enclosures and outside the busbar cable tray. An exhaust fan is installed at the center of the top of each horizontal enclosure. Fixing structures are provided on both sides of the exhaust fan at the top of the multiple horizontal enclosures. A connecting plate is connected between the bottoms of two adjacent horizontal enclosures. Triangular support frames are connected between the top outer walls of the two vertical enclosures and the connecting plate near the vertical enclosure.

[0008] As a further improvement to the technical solution of this utility model, the outer walls of both vertical shells are provided with first heat dissipation holes, and the outer walls of each horizontal shell are provided with second heat dissipation holes.

[0009] As a further improvement to the technical solution of this utility model, the fixing structure includes a limiting bracket fixedly connected to the top edge of each horizontal shell, a plug rod inserted between the inner sides of the multiple limiting brackets, and a locking bolt for locking the position of the plug rod connected to the top of each limiting bracket.

[0010] As a further improvement to the technical solution of this utility model, the bottom of the limiting card seat is welded and fixed to the top of the horizontal shell, and the inside of the limiting card seat is provided with a insertion hole for inserting the rod, the length and width of the vertical cross section of the insertion hole being greater than the length and width of the vertical cross section of the rod, respectively.

[0011] As a further improvement to the technical solution of this utility model, the top of the limiting card seat is provided with a screw hole matching the external thread structure of the locking bolt, and the locking bolt and the limiting card seat are connected by threads.

[0012] As a further improvement to the technical solution of this utility model, the connecting plate and the bottom of the horizontal shell are fixedly connected by screws. Four screws are provided, and the four screws are respectively connected at the four corners near the connecting plate.

[0013] As a further improvement to the technical solution of this utility model, the triangular support frame is fixedly connected to the outer wall of the vertical shell and the bottom of the connecting plate by screws, and the triangular support frame is provided with mounting holes for screw connection.

[0014] The beneficial effects of this utility model are:

[0015] This utility model features a protective shell consisting of vertical and horizontal shells on the outside of the busbar bridge. Multiple horizontal shells are connected and fixed at their tops using a fixed structure. During installation, insert rods are passed sequentially through the limiting brackets at the tops of the multiple horizontal shells, and then locking bolts are tightened to secure them, thus achieving an integrated connection between the tops of the multiple horizontal shells. Furthermore, connecting plates are screwed between the bottoms of adjacent horizontal shells, maintaining stability between the bottoms of the multiple horizontal shells. A triangular support frame is then used to fix the vertical and horizontal shells, ensuring the entire protective shell composed of vertical and horizontal shells remains stable. This eliminates the need for external hoisting structures, avoiding the space-consuming problem associated with hoisting structures. It offers high stability, is easy to move, and avoids the inconvenience caused by fixed hoisting positions. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a top view of the connection of multiple horizontal shells in this utility model.

[0018] Figure 3 This is a schematic diagram of the limiting card holder in this utility model.

[0019] Figure 4 This is a schematic diagram of the connection structure of the connecting plate at the bottom of the horizontal shell in this utility model.

[0020] Figure 5 This is a schematic diagram of the triangular support frame in this utility model.

[0021] The attached diagram is labeled as follows: 1. First high-voltage switchgear cabinet; 2. Second high-voltage switchgear cabinet; 3. Vertical shell; 4. First heat dissipation hole; 5. Horizontal shell; 6. Busbar; 7. Insulator; 8. Second heat dissipation hole; 9. Connecting plate; 10. Triangular support frame; 11. Exhaust fan; 12. Limiting bracket; 13. Insert rod; 14. Locking bolt; 101. Mounting hole; 121. Insertion hole; 122. Screw hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] As attached Figure 1-5The high-voltage switchgear with assembled busbar bridge shown includes a first high-voltage switchgear cabinet 1 and a second high-voltage switchgear cabinet 2 located on one side of the first high-voltage switchgear cabinet 1. A busbar bridge is provided between the top of the first high-voltage switchgear cabinet 1 and the second high-voltage switchgear cabinet 2. The busbar bridge is composed of busbars 6 and insulators 7 connected to the bottom of the busbars 6. The busbar bridge is provided with a protective shell.

[0024] The protective enclosure includes a vertical enclosure 3 installed on the top of the first high-voltage switchgear cabinet 1 and the second high-voltage switchgear cabinet 2. Several horizontal enclosures 5 are connected between the tops of the two vertical enclosures 3 and outside the busbar bridge. An exhaust fan 11 is installed at the center of the top of each horizontal enclosure 5. Fixed structures are provided on both sides of the exhaust fan 11 at the top of the multiple horizontal enclosures 5. A connecting plate 9 is connected between the bottoms of two adjacent horizontal enclosures 5. A triangular support frame 10 is connected between the top outer wall of the two vertical enclosures 3 and the connecting plate 9 near the vertical enclosure 3.

[0025] As attached Figure 1 As shown, the outer walls of the two vertical shells 3 are provided with first heat dissipation holes 4, and the outer walls of each horizontal shell 5 are provided with second heat dissipation holes 8, so as to facilitate the dissipation of heat from the interior of the horizontal shell 5 and the vertical shells 3 during use.

[0026] As attached Figure 1-3 As shown, the fixing structure includes a limiting bracket 12 fixedly connected to the top edge of each horizontal housing 5. A rod 13 is inserted between the inner sides of multiple limiting brackets 12, and a locking bolt 14 is connected to the top of each limiting bracket 12 to lock the position of the rod 13. The bottom of the limiting bracket 12 is welded to the top of the horizontal housing 5, and the inside of the limiting bracket 12 is provided with a insertion hole 121 for the rod 13 to pass through. The length and width of the vertical section of the insertion hole 121 are larger than the length and width of the vertical section of the rod 13, respectively. The top of the limiting bracket 12 is provided with a screw hole 122 that matches the external thread structure of the locking bolt 14. The locking bolt 14 and the limiting bracket 12 are connected by threads. The fixing structure facilitates the connection of multiple horizontal housings 5 ​​in one state during use, forming an integrated structure, thereby maintaining stability.

[0027] As attached Figure 1 and attached Figure 4 As shown, the connecting plate 9 and the bottom of the horizontal housing 5 are fixedly connected by screws. There are four screws, and the four screws are respectively connected to the four corners near the connecting plate 9, so as to maintain a connection between the bottoms of multiple horizontal housings 5, thereby further maintaining the stability of multiple horizontal housings 5 ​​outside the busbar bridge.

[0028] As attached Figure 1 and attached Figure 5As shown, the triangular support frame 10 is fixedly connected to the outer wall of the vertical shell 3 and the bottom of the connecting plate 9 by screws. The triangular support frame 10 is provided with mounting holes 101 for screw connection, which makes it easy to keep the vertical shell 3 and the horizontal shell 5 fixed, thereby realizing the stability of the entire protective shell composed of the vertical shell 3 and the horizontal shell 5.

[0029] Working principle: This utility model designs a high-voltage switchgear with an assembled busbar bridge, the specific structure of which is shown in the attached instruction manual. Figure 1-5 As shown, in this technical solution, a busbar bridge is provided between the tops of the two high-voltage switchgear cabinets. The busbar bridge consists of a busbar 6 and an insulator 7 connected to the bottom of the busbar 6. The busbar bridge is surrounded by a protective shell consisting of a vertical shell 3 and a horizontal shell 5. The tops of the multiple horizontal shells 5 are connected and fixed by a fixed structure. During installation, the insertion rod 13 is passed through the limiting bracket 12 at the top of the multiple horizontal shells 5 in sequence, and then the locking bolt 14 is tightened to fix it, thereby realizing the integrated connection between the tops of the multiple horizontal shells 5. The bottoms of two adjacent horizontal shells 5 are connected by a connecting plate 9 with screws, thereby maintaining the stability between the bottoms of the multiple horizontal shells 5. Then, the vertical shell 3 and the horizontal shell 5 are fixed by a triangular support frame 10, thereby realizing the stability of the entire protective shell consisting of the vertical shell 3 and the horizontal shell 5. Then, during operation, the exhaust fan 11 runs to exhaust the heat inside the protective shell.

[0030] In the accompanying drawings of the embodiments disclosed in this utility model, only the structures involved in the embodiments of this utility model are shown. Other structures can be referred to with ordinary design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0031] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-voltage switchgear with a modular busbar bridge, comprising a first high-voltage switchgear cabinet (1) and a second high-voltage switchgear cabinet (2) disposed on one side of the first high-voltage switchgear cabinet (1), characterized in that: A busbar bridge is provided between the top of the first high-voltage switch cabinet (1) and the second high-voltage switch cabinet (2). The busbar bridge consists of a busbar (6) and an insulator (7) connected to the bottom of the busbar (6). A protective shell is provided on the outside of the busbar bridge. The protective housing includes a vertical housing (3) installed on the top of the first high-voltage switch cabinet (1) and the second high-voltage switch cabinet (2). Between the tops of the two vertical housings (3) and outside the busbar bridge, there are several horizontal housings (5). Each horizontal housing (5) has an exhaust fan (11) installed at the top center. The tops of the multiple horizontal housings (5) are provided with fixed structures on both sides of the exhaust fan (11). The bottoms of two adjacent horizontal housings (5) are connected by connecting plates (9). Triangular support frames (10) are connected between the top outer walls of the two vertical housings (3) and the connecting plates (9) near the vertical housings (3).

2. The high-voltage switchgear with assembled busbar bridge as described in claim 1, characterized in that: The outer walls of the two vertical shells (3) are provided with first heat dissipation holes (4), and the outer walls of each horizontal shell (5) are provided with second heat dissipation holes (8).

3. The high-voltage switchgear with assembled busbar bridge as described in claim 1, characterized in that: The fixing structure includes a limiting bracket (12) fixedly connected to the top edge of each horizontal shell (5), a plug rod (13) is inserted between the inner sides of the multiple limiting brackets (12), and a locking bolt (14) for locking the position of the plug rod (13) is connected to the top of each limiting bracket (12).

4. The high-voltage switchgear with assembled busbar bridge as described in claim 3, characterized in that: The bottom of the limiting card seat (12) is welded and fixed to the top of the horizontal shell (5), and the inside of the limiting card seat (12) is provided with a insertion hole (121) for the insertion rod (13) to pass through. The length and width of the vertical section of the insertion hole (121) are greater than the length and width of the vertical section of the insertion rod (13).

5. The high-voltage switchgear with assembled busbar bridge as described in claim 3, characterized in that: The top of the limiting bracket (12) is provided with a screw hole (122) matching the external thread structure of the locking bolt (14), and the locking bolt (14) and the limiting bracket (12) are connected by threads.

6. The high-voltage switchgear with assembled busbar bridge as described in claim 1, characterized in that: The connecting plate (9) is fixedly connected to the bottom of the transverse shell (5) by screws. There are four screws, and the four screws are respectively connected to the four corners of the connecting plate (9).

7. The high-voltage switchgear with assembled busbar bridge as described in claim 1, characterized in that: The triangular support frame (10) is fixedly connected to the outer wall of the vertical shell (3) and the bottom of the connecting plate (9) by screws. The triangular support frame (10) is provided with mounting holes (101) for screw connection.

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