A longitudinally arranged medium voltage gas insulated ring main unit switchgear

Abstract

The utility model discloses a kind of longitudinal layout medium-pressure gas insulation ring network switch device, it is related to switchgear technical field, including longitudinal cabinet, the longitudinal cabinet includes side box wall and cabinet back plate, the front end of the longitudinal cabinet is rotationally provided with front box door, the lower part of the inside of longitudinal cabinet is fixedly installed with wiring support, the wiring support is vertically arranged with side box wall, multiple cable incoming terminal and ring network outgoing terminal are installed on the side of the wiring support close to front box door, multiple fixed terminal are installed on the side of the wiring support away from front box door, the fixed terminal is electrically connected with cable incoming terminal and ring network outgoing terminal, the top of the longitudinal cabinet is provided with cable outgoing terminal, the cable outgoing terminal is electrically connected with fixed terminal by wire;The utility model longitudinal layout design effectively solves the problem of narrow space installation cabinet, by increasing height direction size rather than width direction, adapt more installation environment.

Description

Technical Field

[0001] This utility model relates to the field of switchgear technology, and in particular to a longitudinally arranged medium-voltage gas-insulated ring network switchgear. Background Technology

[0002] Longitudinal-arranged medium-voltage gas-insulated switchgear is a product that differs from conventional high-voltage switchgear. It maintains the width of the cabinet while increasing the height with each additional unit, solving the problem of installing the cabinet in confined spaces. Figure 7 and Figure 8 As shown, the existing switchgear includes the original switch box 100. The original cable inlet 101 and the original ring network outlet 102 are installed on the two side walls of the original switch box 100, respectively. The original cable outlet 103 is located on the top of the original switch box 100. The original cable outlet 103 and the original cable inlet 101 are electrically connected via the original connecting copper rod 104. Both the inlet and outlet terminals are arranged along the width of the cabinet. This method requires that this type of cabinet, for product terminal wiring, can only be used in cable branch boxes where the cabinet can be opened from both the front and back. The development of this type of product aims to achieve the narrowest possible cabinet width. However, the terminal layout of this type of cabinet on the market is not suitable for the cabinet layout requirements. To achieve the narrowest possible cabinet design, only longitudinally mounted medium-voltage gas-insulated switchgear can be used. However, the cabinet also needs to accommodate transformers, low-voltage switchgear, and other equipment. If existing medium-voltage gas-insulated switchgear is used, the cabinet must be able to open from both sides to operate the switchgear, which is impossible in practical applications.

[0003] like Figure 8 As shown, the terminal arrangement of medium-voltage gas-insulated switchgear, which is typically arranged longitudinally, is in the width direction. This means that the incoming and outgoing lines must be placed in the width direction, requiring multiple twists in the processing of the copper rods connecting the lines, increasing the processing difficulty. Furthermore, the incoming and outgoing lines interfere with each other along their paths, increasing the difficulty of installing the connecting copper rods and also increasing the risk of electrical faults during use. Utility Model Content

[0004] This utility model provides a longitudinally laid medium-voltage gas-insulated ring network switchgear, which can solve the problem in the prior art where the incoming and outgoing lines interfere with each other on the routing path, increasing the difficulty of installing connecting copper rods and also increasing the risk of electrical faults during use.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A longitudinally arranged medium-voltage gas-insulated ring main switchgear includes a longitudinal enclosure, which includes side walls and a rear panel. A front door is rotatably mounted at the front end of the longitudinal enclosure. A wiring bracket is fixedly installed on the lower inner side of the longitudinal enclosure, and the wiring bracket is perpendicular to the side walls. Multiple cable inlet terminals and ring main outlet terminals are installed on the side of the wiring bracket near the front door, and multiple fixed terminals are installed on the side of the wiring bracket away from the front door. The fixed terminals are electrically connected to the cable inlet terminals and the ring main outlet terminals. A cable outlet terminal is provided on the top of the longitudinal enclosure, and the cable outlet terminal is electrically connected to the fixed terminals through a wire.

[0007] Preferably, the wiring bracket includes a horizontal adjustment bracket fixedly installed inside the longitudinal housing, and multiple sets of vertical adjustment brackets are slidably installed on the horizontal adjustment bracket along the length direction. The vertical adjustment brackets are connected to the cable inlet terminal or the ring network outlet terminal.

[0008] Preferably, the lateral adjustment bracket has an internal through structure, and the side of the lateral adjustment bracket near the front door is provided with a guide groove and a lateral locking groove. The vertical adjustment bracket is slidably connected to the guide groove and locked to the lateral adjustment bracket by a bolt through the lateral locking groove.

[0009] Preferably, a nut limiting seat is fixedly provided inside the transverse adjustment bracket, and a nut that is threadedly engaged with a bolt is slidably provided inside the nut limiting seat.

[0010] Preferably, the vertical adjustment bracket includes a vertical mounting plate, and the lower end of the vertical mounting plate is provided with an adjustment slide that slides in cooperation with the guide slide groove. The adjustment slide is provided with a threaded through hole for a bolt to pass through.

[0011] Preferably, a terminal connection plate is provided on the side of the vertical mounting plate near the front door, which is slidably mounted in the vertical direction, and a wire connector is provided on the end of the terminal connection plate away from the vertical mounting plate, which is connected to the cable inlet terminal or the ring network outlet terminal.

[0012] Preferably, the vertical mounting plate is provided with a vertical sliding groove and a vertical locking groove in the vertical direction, the terminal connection plate is threaded with a bolt, the bolt passes through the vertical sliding groove and is threaded with a nut, and the vertical locking groove corresponds to the position of the wire connector.

[0013] Preferably, the wire connector and the fixed terminal are connected by a telescopic wire.

[0014] Preferably, the wiring bracket is made of insulating material.

[0015] Preferably, the conductor connecting the cable outlet terminal and the fixed terminal is fitted with a connecting copper rod for positioning the conductor.

[0016] The beneficial effects of this utility model are:

[0017] (1) The vertical layout design effectively solves the problem of installing cabinets in narrow spaces. By increasing the height dimension instead of the width dimension, it adapts to more installation environments.

[0018] (2) Through reasonable wiring design and adjustable wiring brackets, interference between incoming and outgoing lines on the wiring path is reduced, thus reducing the risk of electrical faults.

[0019] (3) The adjustable structure of the wiring bracket makes the terminal connection more flexible and adaptable to the needs of different specifications and quantities of cable inlet and outlet. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the main structure of a longitudinally laid medium-voltage gas-insulated ring network switchgear according to this utility model;

[0022] Figure 2 This is a side view of a longitudinally laid medium-voltage gas-insulated ring network switchgear according to the present invention.

[0023] Figure 3 This is a three-dimensional structural diagram of the internal wiring of this utility model;

[0024] Figure 4 This is a side view of the internal wiring structure of this utility model;

[0025] Figure 5 This is a three-dimensional structural diagram of the wiring bracket of this utility model;

[0026] Figure 6 This is a side view of the wiring bracket of this utility model;

[0027] Figure 7 This is a schematic diagram of the structure of the prior art switching device of this utility model;

[0028] Figure 8 This is a schematic diagram of the internal wiring structure of the prior art switchgear of this utility model.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Longitudinal enclosure; 11. Front door; 12. Side wall; 13. Wiring bracket; 14. Fixed terminal; 15. Cable inlet terminal; 16. Ring network outlet terminal; 17. Cable outlet terminal; 18. Connecting copper rod; 19. Telescopic wire; 31. Horizontal adjustment bracket; 311. Guide groove; 312. Horizontal locking groove; 32. Nut limit seat; 33. Bolt 1; 34. Nut 1; 35. Vertical adjustment bracket; 351. Vertical mounting plate; 352. Adjusting slide; 353. Vertical groove; 354. Vertical locking groove; 36. Terminal connection plate; 37. Bolt 2; 38. Wire connector; 39. Nut 2; 100. Original switch box; 101. Original cable inlet; 102. Original ring network outlet; 103. Original cable outlet; 104. Original connecting copper rod. Detailed Implementation

[0031] 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.

[0032] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] Please see Figures 1-6As shown, this utility model is a longitudinally arranged medium-voltage gas-insulated ring network switchgear, including a longitudinal enclosure 1. The longitudinal enclosure 1 includes a side wall 12 and a rear panel. A front door 11 is rotatably provided at the front end of the longitudinal enclosure 1. A wiring bracket 13 is fixedly installed on the lower inner side of the longitudinal enclosure 1. The wiring bracket 13 is arranged perpendicularly to the side wall 12. Multiple cable inlet terminals 15 and ring network outlet terminals 16 are installed on the side of the wiring bracket 13 near the front door 11. Multiple fixed terminals 14 are installed on the side of the wiring bracket 13 away from the front door 11. The fixed terminals 14 are electrically connected to the cable inlet terminals 15 and the ring network outlet terminals 16. A cable outlet terminal 17 is provided on the top of the longitudinal enclosure 1. The cable outlet terminal 17 is electrically connected to the fixed terminals 14 through a wire.

[0035] In an optional embodiment, the wiring bracket 13 includes a horizontal adjustment bracket 31 fixedly disposed inside the longitudinal housing 1, and a plurality of vertical adjustment brackets 35 are slidably disposed on the horizontal adjustment bracket 31 along the length direction. The vertical adjustment brackets 35 are connected to the cable inlet terminal 15 or the ring network outlet terminal 16.

[0036] It should be noted that the terminal bracket 13 provides flexibility in terminal connections to accommodate the needs of different specifications and quantities of cable inlets and outlets.

[0037] In an optional embodiment, the lateral adjustment bracket 31 has an internal through structure. The lateral adjustment bracket 31 is provided with a guide groove 311 and a lateral locking groove 312 on the side near the front door 11. The vertical adjustment bracket 35 is slidably connected to the guide groove 311 and locked to the lateral adjustment bracket 31 by a bolt 33 through the lateral locking groove 312.

[0038] It should be noted that the horizontal adjustment bracket 31 and bolt 33 facilitate the sliding and locking of the vertical adjustment bracket 35, improving the convenience of installation and adjustment.

[0039] In an optional embodiment, a nut limiting seat 32 is fixedly provided inside the lateral adjustment bracket 31, and a nut 34 that is threadedly engaged with the bolt 33 is slidably provided inside the nut limiting seat 32.

[0040] It should be noted that the nut limit seat 32 enhances the locking effect of bolt 33 and improves the stability of the structure.

[0041] In an optional embodiment, the vertical adjustment bracket 35 includes a vertical mounting plate 351, and the lower end of the vertical mounting plate 351 is provided with an adjustment slide 352 that slides with the guide slide groove 311. The adjustment slide 352 is provided with a threaded through hole for the bolt 33 to pass through.

[0042] It should be noted that the vertical adjustment bracket 35 enables vertical adjustment, further improving the flexibility of terminal connections.

[0043] In an optional embodiment, a terminal connection plate 36 is provided on the side of the vertical mounting plate 351 near the front door 11, and a wire connector 38 is provided on the end of the terminal connection plate 36 away from the vertical mounting plate 351, which is connected to the cable inlet terminal 15 or the ring network outlet terminal 16.

[0044] It should be noted that the sliding design of the terminal connection plate 36 makes the terminal connection more flexible and can adapt to the cable entry and exit requirements at different locations.

[0045] In an optional embodiment, the vertical mounting plate 351 is provided with a vertical sliding groove 353 and a vertical locking groove 354 in the vertical direction, the terminal connecting plate 36 is threaded with a bolt 37, the bolt 37 passes through the vertical sliding groove 353 and is threaded with a nut 39, and the vertical locking groove 354 corresponds to the position of the wire connector 38.

[0046] It should be noted that the vertical slide 353 and the vertical locking groove 354 provide a precise adjustment and locking mechanism in the vertical direction, ensuring the stability and accuracy of the terminal connection.

[0047] In an optional embodiment, the wire connector 38 is connected to the fixed terminal 14 via a telescopic wire 19.

[0048] It should be noted that the design of the telescopic wire 19 adapts to the displacement and adjustment requirements during the terminal connection process, improving the flexibility and reliability of the connection.

[0049] In an optional embodiment, the wiring bracket 13 is made of an insulating material.

[0050] It should be noted that the insulating material reduces the risk of leakage and improves equipment safety.

[0051] In an optional embodiment, a connecting copper rod 18 for positioning the wire is sleeved on the outside of the wire connecting the cable outlet terminal 17 and the fixed terminal 14.

[0052] It should be noted that the connecting copper rod 18 is used to position the wires, which improves the standardization and safety of the wiring.

[0053] The working principle of this utility model is as follows: The wiring bracket 13 is vertically arranged with the side box wall 12. Multiple cable inlet terminals 15 and ring network outlet terminals 16 are installed on the side near the front box door 11, and multiple fixed terminals 14 are installed on the side away from the front box door 11. These terminals are electrically connected to each other to achieve power transmission. The top of the longitudinal box 1 is provided with cable outlet terminals 17, which are electrically connected to the fixed terminals 14 through wires to achieve power output.

[0054] The terminal bracket 13 is designed as an adjustable structure, including a horizontal adjustment bracket 31 and a vertical adjustment bracket 35. Multiple sets of vertical adjustment brackets 35 are slidably mounted on the horizontal adjustment bracket 31. The vertical adjustment brackets 35 are connected to the cable inlet terminal 15 or the ring network outlet terminal 16. By adjusting the position of the vertical adjustment brackets 35 on the horizontal adjustment bracket 31, the requirements for different cable inlets and outlets can be accommodated. The vertical adjustment brackets 35 themselves also have a vertical adjustment function. Through the sliding adjustment of the terminal connection plate 36 and the wire connector 38, the connection position of the terminals can be further optimized, reducing interference in the wiring path.

[0055] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A longitudinally arranged medium-voltage gas-insulated ring network switchgear, characterized in that, The enclosure includes a longitudinal housing (1), which includes a side wall (12) and a rear panel. A front door (11) is rotatably provided at the front end of the longitudinal housing (1). A wiring bracket (13) is fixedly installed on the lower inner side of the longitudinal housing (1). The wiring bracket (13) is perpendicular to the side wall (12). Multiple cable inlet terminals (15) and ring network outlet terminals (16) are installed on the side of the wiring bracket (13) near the front door (11). Multiple fixed terminals (14) are installed on the side of the wiring bracket (13) away from the front door (11). The fixed terminals (14) are electrically connected to the cable inlet terminals (15) and the ring network outlet terminals (16). A cable outlet terminal (17) is provided on the top of the longitudinal housing (1). The cable outlet terminal (17) is electrically connected to the fixed terminals (14) through a wire.

2. The longitudinally arranged medium-voltage gas-insulated ring network switchgear according to claim 1, characterized in that, The wiring bracket (13) includes a horizontal adjustment bracket (31) fixedly installed inside the longitudinal housing (1). Multiple sets of vertical adjustment brackets (35) are slidably installed on the horizontal adjustment bracket (31) along the length direction. The vertical adjustment brackets (35) are connected to the cable inlet terminal (15) or the ring network outlet terminal (16).

3. A longitudinally arranged medium-voltage gas-insulated ring network switchgear according to claim 2, characterized in that, The horizontal adjustment bracket (31) has an internal through structure. The side of the horizontal adjustment bracket (31) near the front door (11) is provided with a guide groove (311) and a horizontal locking groove (312). The vertical adjustment bracket (35) is slidably connected to the guide groove (311) and locked to the horizontal adjustment bracket (31) by a bolt (33) through the horizontal locking groove (312).

4. A longitudinally arranged medium-voltage gas-insulated ring network switchgear according to claim 3, characterized in that, The transverse adjustment bracket (31) is fixedly provided with a nut limiting seat (32), and a nut (34) that is threadedly engaged with the bolt (33) is slidably provided in the nut limiting seat (32).

5. A longitudinally arranged medium-voltage gas-insulated ring network switchgear according to claim 3, characterized in that, The vertical adjustment bracket (35) includes a vertical mounting plate (351), and the lower end of the vertical mounting plate (351) is provided with an adjustment slide (352) that slides in cooperation with the guide slide (311). The adjustment slide (352) is provided with a threaded through hole for a bolt (33) to pass through.

6. A longitudinally arranged medium-voltage gas-insulated ring network switchgear according to claim 5, characterized in that, The vertical mounting plate (351) is provided with a terminal connection plate (36) that slides vertically on the side near the front door (11). The terminal connection plate (36) is provided with a wire connector (38) that connects to the cable inlet terminal (15) or the ring network outlet terminal (16) at the end away from the vertical mounting plate (351).

7. A longitudinally arranged medium-voltage gas-insulated ring network switchgear according to claim 6, characterized in that, The vertical mounting plate (351) is provided with a vertical sliding groove (353) and a vertical locking groove (354) in the vertical direction. The terminal connecting plate (36) is threaded with a bolt (37). The bolt (37) passes through the vertical sliding groove (353) and is threaded with a nut (39). The vertical locking groove (354) corresponds to the position of the wire connector (38).

8. A longitudinally arranged medium-voltage gas-insulated ring network switchgear according to claim 6, characterized in that, The wire connector (38) is connected to the fixed terminal (14) via a telescopic wire (19).

9. A longitudinally arranged medium-voltage gas-insulated ring main switchgear according to any one of claims 1-8, characterized in that, The wiring bracket (13) is made of insulating material.

10. A longitudinally arranged medium-voltage gas-insulated ring main switchgear according to any one of claims 1-8, characterized in that, The cable outlet terminal (17) and the fixed terminal (14) are connected by a connecting copper rod (18) for positioning the cable.

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