Bus closed high voltage distribution cabinet

Abstract

A bus closed high voltage distribution cabinet, including distribution cabinet body and setting in the control room of distribution cabinet body inside top, distribution cabinet body inside detachable installation has first fixed groove, first fixed groove's front end is provided with movable closed shell, closed shell's inside is provided with a plurality of insulating seat, each insulating seat's top surface is installed with static contact seat, between adjacent static contact seat installs multiple groups bus conductor, is arranged in parallel between bus conductor in same static contact seat inside. The utility model discloses a hollow first fixed groove is arranged in the inside of distribution cabinet body, the surface of first fixed groove is provided with second fixed groove, the other end of second fixed groove is provided with closed shell, and the cooperation between second fixed groove and first fixed groove is through bolt and gasket, can realize closed shell inside distribution cabinet body along vertical direction or transverse movement, greatly improved the flexibility of closed shell installation in the inside of distribution cabinet body, avoids the influence of closed shell fixed design position factor on cabinet design.

Description

Technical Field

[0001] This utility model relates to the field of high-voltage switchgear technology, specifically a busbar-enclosed high-voltage switchgear. Background Technology

[0002] The busbar system is the core conductive component inside a distribution cabinet, undertaking the crucial task of collecting and distributing large currents. Enclosed busbars are widely used in power plants, substations, and industrial and residential power supplies. Traditional busbar systems, especially enclosed bus trunking, are typically integrated into the distribution cabinet using a fixed installation method. The enclosed casing of the distribution cabinet is generally a fixed connection. Fixed installation requires precise determination of the bus trunking position during cabinet manufacturing and assembly to ensure accurate alignment of the stationary contactors with the circuit breaker moving contacts and other components. This increases the precision requirements for cabinet manufacturing, thereby reducing the flexibility of enclosed bus trunking installation. Furthermore, the bus conductors inside the enclosed bus trunking are usually bolted in place. Bolting is difficult and complex during installation and disassembly, significantly impacting construction efficiency. Utility Model Content

[0003] To address the issue of insufficient installation flexibility of enclosed enclosures in the aforementioned technologies, this utility model provides a busbar-enclosed high-voltage distribution cabinet.

[0004] The technical solution of this utility model is as follows:

[0005] A busbar-enclosed high-voltage switchgear includes: a switchgear body and a control room located inside and above the switchgear body;

[0006] The power distribution cabinet has a first fixing slot that can be detachably installed inside. The front end of the first fixing slot is provided with a movable closed shell. Several insulating seats are fixedly installed inside the closed shell. A stationary contact seat is fixedly installed on the upper surface of each insulating seat. Multiple sets of bus conductors are installed between adjacent stationary contact seats, and the bus conductors located inside the same stationary contact seat are arranged in parallel.

[0007] The rear surface of the enclosed housing is provided with multiple sets of second fixing grooves. The rear end of the second fixing groove is fixedly connected to the rear end of the enclosed housing, and the entire assembly of the second fixing groove and the enclosed housing is movable relative to the first fixing groove along the vertical and horizontal directions of the power distribution cabinet.

[0008] In order to locate the installation position of the bus conductor inside the stationary contact seat and facilitate the assembly and disassembly of the bus conductor, a limiting protrusion is installed between the inner walls of adjacent stationary contact seats. The limiting protrusions located in the same gap inside the stationary contact seat are at the same height and are arranged opposite each other.

[0009] The method for separating the bus conductor from the stationary contact seat is as follows: a circular hole is provided in the middle of the bus conductor, and the limiting protrusion and the circular hole can be separated and used together.

[0010] To facilitate the movement of the entire assembly consisting of the enclosed outer shell and the second fixing slot on the surface of the first fixing slot, a plurality of the first fixing slots are specifically arranged inside the lower part of the power distribution cabinet, and the plurality of the first fixing slots are parallel to each other.

[0011] The method for limiting the lateral movement of the enclosed shell is as follows: the lateral movement distance of the enclosed shell is less than the length of the first fixing groove.

[0012] To prevent the closed shell from moving too far longitudinally, the distance the closed shell moves vertically is less than 1 / 2 of the length of the closed shell.

[0013] In order to successfully lock the busbar conductor and restrict its movement inside the stationary contact seat, the thickness of the busbar conductor is less than the width of a single gap in the stationary contact seat, and greater than the distance between adjacent limiting protrusions located in the same gap.

[0014] Ensure the consistency of the length and installation angle of the busbar conductor inside the enclosed enclosure, and ensure that the insulating seats installed along the vertical or horizontal direction of the distribution cabinet are all in a straight line.

[0015] To facilitate the arbitrary movement of the enclosed outer shell inside the cabinet, the second fixing groove is perpendicular to the first fixing groove.

[0016] To enable the control room to control the internal passage of the enclosed busbar trunking: the control room is connected to other parts inside the distribution cabinet, and other parts are connected to the busbar conductors via wires.

[0017] The beneficial effects of this utility model are as follows: By setting a hollow first fixing groove inside the distribution cabinet, and installing a second fixing groove on the surface of the first fixing groove, the second fixing groove can move vertically or horizontally relative to the first fixing groove. A closed shell is fixedly installed at the rear end of the second fixing groove, and the second fixing groove and the first fixing groove are connected by bolts and washers. This allows the closed shell to move vertically or horizontally inside the distribution cabinet, greatly improving the flexibility of installing the closed shell inside the distribution cabinet. It eliminates the need to accurately determine the position of the busbar trunking in advance, and avoids the impact of the design position of the closed shell on the cabinet design.

[0018] In addition, an insulating seat is fixedly installed inside the enclosed shell, and a stationary contact seat is installed on the upper surface of the insulating seat. The stationary contact seat has a limiting protrusion of the same height installed inside. The cooperation between the limiting protrusion and the bus conductor not only eliminates the need for bolt structure, but also facilitates the installation and disassembly of the bus conductor, which can effectively improve construction efficiency. Attached Figure Description

[0019] The advantages and solutions of this application will become clear to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this invention.

[0020] In the attached diagram:

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the closed mother channel in this utility model (bus conductor not installed);

[0023] Figure 3 This is a schematic diagram of the closed mother body groove in this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the closed mother body groove in this utility model (with the groove cover installed);

[0025] Figure 5 This is a schematic diagram of the back structure of the closed mother body groove of this utility model;

[0026] Figure 6 This is a top view of the closed mother body groove in this utility model;

[0027] Figure 7 This is a schematic diagram of the busbar conductor in this utility model.

[0028] The components represented by the various reference numerals in the diagram are:

[0029] 1. Distribution cabinet; 2. Control room; 3. First fixing slot; 4. Enclosed shell; 5. Insulating base; 6. Static contact base; 601. Limiting protrusion; 7. Busbar conductor; 701. Round hole; 8. Second fixing slot. Detailed Implementation

[0030] Example

[0031] like Figure 1-7 As shown, this embodiment provides a busbar-enclosed high-voltage distribution cabinet, which aims to solve the problems of low flexibility in the fixed installation of traditional busbar enclosed slots and the complex installation and disassembly process of the busbar conductor 7 fixing bolts.

[0032] See attached document Figure 1 and attached Figure 5 This embodiment includes a power distribution cabinet 1 and a control room 2 located inside and above the power distribution cabinet 1. A first fixing groove 3 is provided inside the power distribution cabinet 1. The first fixing groove 3 is detachably installed inside the power distribution cabinet 1. A closed shell 4 is provided at the front end of the power distribution cabinet 1. Several second fixing grooves 8 are fixedly installed on the rear end face of the closed shell 4. The second fixing grooves 8 arranged horizontally or vertically are located on the same straight line. In this embodiment, four second fixing grooves 8 are provided, that is, two are arranged horizontally and two are arranged vertically. The rear end of the second fixing groove 8 is fixedly connected to the rear end of the power distribution cabinet 1, and the first fixing groove 3 is slidably connected to the power distribution cabinet 1 through the second fixing groove 8, that is, the first fixing groove 3 and the second fixing groove 8 are connected by bolts. The second fixing slot 8 and the enclosed shell 4 together can move relative to the first fixing slot 3 in both the vertical and horizontal directions along the distribution cabinet 1. When moving in the horizontal direction, the moving distance of the second fixing slot 8 and the enclosed shell 4 together is less than the length of the first fixing slot 3. When moving in the vertical direction, the moving distance of the second fixing slot 8 and the enclosed shell 4 together is less than 1 / 2 of the length of the enclosed shell 4.

[0033] See attached document Figure 2 Appendix Figure 4 and attached Figure 6 Multiple sets of insulating seats 5 are fixedly arranged inside the enclosed shell 4. The multiple sets of insulating seats 5 arranged along the length or width direction of the insulating seats 5 are located on the same straight line, and the insulating seats 5 arranged along the same direction are parallel to each other. In this embodiment, four sets of insulating seats 5 are arranged, that is, two sets are arranged along the length or width direction of the insulating seats 5 respectively. A stationary contact seat 6 is fixedly arranged on the upper surface of the insulating seat 5. The interior of the stationary contact seat 6 is arranged with multiple channel openings. Multiple sets of bus conductors 7 are installed in the multiple channels of the stationary contact seat 6, and the bus conductors 7 located on the same surface of the stationary contact seat 6 are parallel to each other. The thickness of the bus conductor 7 is less than the gap width of a single channel in the stationary contact seat 6, and greater than the distance between adjacent limiting protrusions 601 located in the same gap, ensuring that the bus conductor 7 can be smoothly installed in the gap of the stationary contact seat 6 and can be effectively limited and fixed by the limiting protrusions 601.

[0034] See attached document Figure 2 Appendix Figure 4 Appendix Figure 6 and attached Figure 7It is worth noting that multiple limiting protrusions 601 are provided on the inner wall of the multi-channel stationary contact seat 6. The limiting protrusions 601 located on the inner wall of the same channel of the stationary contact seat 6 are arranged opposite each other and at the same height. Correspondingly, multiple round holes 701 are opened in the middle of the bus conductor 7. The number of round holes 701 is the same as the number of stationary contact seats 6. The limiting protrusions 601 and the round holes 701 can be separated and used. This matching method replaces the traditional bolt fixing, which greatly improves the installation and disassembly speed of the bus conductor 7 and effectively improves the construction efficiency.

[0035] See attached document Figure 1 In order to facilitate the control of the current path inside the enclosed busbar trunking, the control room 2 is fixedly connected to the upper end of the busbar conductor 7 by a wire, and the other end of the busbar conductor 7 is connected to the other equipment.

[0036] See attached document Figure 1-7 When using this device, firstly, the insulating base 5 and the stationary contact base 6 are installed in parallel inside the enclosed housing 4, so that the vertical or horizontal insulating base 5 and the stationary contact base 6 are on the same straight line. After installation, the second fixing groove 8 is fixed at the rear end of the enclosed housing 4, so that the rear end of the enclosed housing 4 and the rear end of the second fixing groove 8 are fixed as a whole. According to the actual installation situation of the distribution cabinet, the first fixing groove 3 is installed inside the distribution cabinet 1. The bolt is installed inside the first fixing groove 3, and the other end of the bolt is installed inside the second fixing groove 8. The front end of the first fixing groove 3 and the front end of the second fixing groove 8 are set opposite each other. After adjusting the appropriate installation position, the two ends of the bolt are fixed to the first fixing groove 3 and the second fixing groove 8 respectively, thus completing the positioning of the enclosed housing 4 inside the distribution cabinet 1. After completing the above steps, the bus conductor 7 is installed in the channel of the stationary contact base 6, so that the limiting protrusion 601 on the inner wall of the channel cooperates with the round hole 701 on the surface of the bus conductor 7. One end of the bus conductor 7 is connected to the control room 2, and the other end is connected to other equipment.

[0037] When the equipment is under maintenance, after disconnecting both ends of the bus conductor 7 from the control room 2 and other equipment, apply tension to the bus conductor 7 to separate the circular hole 701 from the limiting protrusion 601, thus completing the maintenance and replacement of the bus conductor 7. During the installation after replacement, apply pressure to the bus conductor 7 and ensure precise engagement with the limiting protrusion 601 to complete the installation process after equipment replacement.

Claims

1. A busbar-enclosed high-voltage switchgear, comprising a switchgear body (1) and a control room (2) disposed above the interior of the switchgear body (1), characterized in that, The power distribution cabinet (1) has a plurality of first fixing slots (3) that can be detachably installed inside. The front end of the first fixing slot (3) is provided with a movable closed shell (4). The closed shell (4) is fixedly provided with a plurality of insulating seats (5). Each insulating seat (5) has a stationary contact seat (6) fixedly installed on its upper surface. Multiple sets of bus conductors (7) are installed between adjacent stationary contact seats (6), and the bus conductors (7) located inside the same stationary contact seat (6) are arranged in parallel. The rear surface of the enclosed housing (4) is provided with multiple sets of second fixing grooves (8). The rear end of the second fixing groove (8) is fixedly connected to the rear end of the enclosed housing (4), and the second fixing groove (8) and the enclosed housing (4) are fixed together and can move relative to the first fixing groove (3) along the vertical and horizontal directions of the power distribution cabinet.

2. A bus-enclosed high voltage switchgear according to claim 1, characterized in that Limiting protrusions (601) are installed between the inner walls of adjacent stationary contact seats (6). The limiting protrusions (601) located in the same gap inside the stationary contact seat are at the same height and are arranged opposite each other.

3. The busbar-enclosed high-voltage switchgear according to claim 2, characterized in that, The bus conductor (7) has a circular hole (701) in the middle, and the limiting protrusion (601) and the circular hole (701) can be separated and used together.

4. The busbar-enclosed high-voltage switchgear according to claim 1, characterized in that, Multiple first fixing slots (3) are specifically arranged inside the lower part of the power distribution cabinet (1), and the multiple first fixing slots (3) are parallel to each other.

5. A busbar-enclosed high-voltage switchgear according to claim 1, characterized in that, The distance that the closed shell (4) moves laterally is less than the length of the first fixed groove (3).

6. The busbar-enclosed high-voltage switchgear according to claim 1, characterized in that, The vertical movement distance of the enclosed shell (4) is less than 1 / 2 of the length of the enclosed shell (4).

7. A busbar-enclosed high-voltage switchgear according to claim 3, characterized in that, The thickness of the bus conductor (7) is less than the width of a single gap in the stationary contact seat (6) and greater than the distance between adjacent limiting protrusions (601) located in the same gap.

8. A busbar-enclosed high-voltage switchgear according to claim 1, characterized in that, The insulating bases (5) installed vertically or horizontally along the distribution cabinet (1) are all located in a straight line.

9. A busbar-enclosed high-voltage switchgear according to claim 1, characterized in that, The second fixing groove (8) is perpendicular to the first fixing groove (3).

10. A busbar-enclosed high-voltage switchgear according to claim 1, characterized in that, The control room (2) is connected to other parts inside the power distribution cabinet (1) and to the bus conductor (7) by wires.

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