Expandable substation secondary equipment screen cabinet
By designing an expandable substation secondary equipment cabinet, and utilizing a combination of modular panels and flexible structures, the problem of not being able to add equipment after the equipment is fully loaded is solved. This enables the expansion of cabinet space and modular management, improving the flexibility and efficiency of equipment use.
Patent Information
- Application Number
- CN202522109394.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-30
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-30
AI Technical Summary
The existing secondary equipment cabinets in substations have low expandability, and cannot meet the needs of adding equipment when the equipment is fully loaded.
An expandable substation secondary equipment cabinet was designed. By combining assembly plates, dovetail blocks, and elastic structures, the longitudinal space of the cabinet can be expanded. The combination of grooves and springs ensures that the components are stably connected, increasing the equipment installation space.
It expands the vertical space of the cabinet, making it easier to add equipment. The internal modular design facilitates the installation and disassembly of independent spaces, avoids messy wiring, and improves the flexibility and efficiency of equipment use.
Smart Images
Figure CN224683658U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of substation secondary equipment cabinet technology, specifically an expandable substation secondary equipment cabinet. Background Technology
[0002] A substation is a location in a power system that transforms voltage and current, receiving and distributing electrical energy. Substations within power plants are step-up substations, their function being to step up the voltage of the electricity generated by generators before feeding it into the high-voltage power grid. Substations have existed since the establishment of the first truly functional power system. As an indispensable part of the power system, substations have developed alongside it for over 100 years. During this development, substations have undergone significant changes in terms of construction sites, voltage levels, and equipment. The footprint of substations has been greatly reduced compared to the original open-air substations. Regarding voltage levels, with the development of power technology, the original small-scale power grid transmission model, with a few 110kV and 220kV substations as hubs and 35kV substations as terminal substations, has evolved. However, the current substation secondary equipment cabinets have low expandability. Most of them are one-time assembled cabinets with fixed vertical space inside. If the equipment is fully loaded and additional equipment is added inside the cabinet, it cannot meet the usage requirements. Utility Model Content
[0003] The purpose of this utility model is to provide an expandable substation secondary equipment cabinet, which solves the problem that current substation secondary equipment cabinets have low expandability, are mostly one-time assembled cabinets with fixed vertical space inside, and cannot meet the usage needs when the equipment is fully loaded and additional equipment is added inside the cabinet.
[0004] To achieve the above objectives, this utility model provides the following technical solution: An expandable substation secondary equipment cabinet includes a cabinet body and a top cabinet; The top surface of the cabinet is provided with two opposing inserts; The bottom of the top cabinet is open and includes a top plate. The first assembly plate, the second assembly plate, the third assembly plate and the fourth assembly plate arranged clockwise form a ring of side walls of the top cabinet. The top cabinet door is provided on the first assembly plate. The first assembly plate, the second assembly plate, the third assembly plate, and the fourth assembly plate are respectively equipped with dovetail blocks and dovetail grooves so that the first assembly plate, the second assembly plate, the third assembly plate, and the fourth assembly plate can be spliced together in sequence. The bottom surfaces of the first assembly plate, the second assembly plate, the third assembly plate, and the fourth assembly plate are respectively provided with slots for inserting plates; The top plate has a ring of raised portions fixed on the inner wall surfaces of the first assembly plate, the second assembly plate, the third assembly plate, and the fourth assembly plate; The four outer surfaces of the protruding part are respectively equipped with elastic structures, the elastic structures including grooves, multiple springs and spheres. The grooves are opened on the side of the protruding part facing the side wall of the top cabinet, the springs are fixed and arrayed in the grooves, and the spheres are fixed to the ends of the springs. The inner walls of the first assembly plate, the second assembly plate, the third assembly plate and the fourth assembly plate are respectively provided with arc-shaped grooves for inserting spheres.
[0005] Furthermore, a horizontal plate is fixed in the middle of the cabinet body, a vertical plate is fixed on the horizontal plate, one end of a short plate is vertically fixed in the middle of the vertical plate, and the other end of the short plate extends and is fixed to the cabinet body.
[0006] Furthermore, through holes are provided on both sides of the horizontal plate separated by the vertical plate, on both vertical sides of the vertical plate, and on one side of the short plate. A wiring structure is fixed to the inner wall of the through hole, and the wiring structure includes a wire plate, a rubber block, and a through hole. The surface of each wire plate is attached to each through hole, the array of wire holes is formed on the wire plate, the number of wire holes is not less than fifteen, a rubber block is installed in each wire hole, and the through hole is formed on the rubber block.
[0007] Furthermore, each of the dovetail blocks is covered with a rubber sleeve.
[0008] Furthermore, it also includes a dust cover, which is a shell with an open bottom, and the inner wall of the dust cover can be attached to the outer surface of the four insert plates.
[0009] Furthermore, the cross-section of the top cabinet is square.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This expandable substation secondary equipment cabinet has the following advantages compared with traditional technology: 1. Insert the first, second, third, and fourth assembly plates into the dovetail grooves in a clockwise direction to form a frame. Insert the inserts on the cabinet into the slots on the frame to assemble the frame onto the cabinet. Place the top plate onto the frame, and use the elasticity of the springs in the grooves to insert the balls into the arc-shaped grooves, thus completing the assembly of the frame and the top plate. This expands the vertical space of the cabinet and facilitates the addition of equipment. 2. The horizontal board, vertical board and short board inside the cabinet form a "upper" shape, dividing the internal space of the cabinet into standardized modules with independent functions, such as power supply module, protection control module, communication module, interface module, etc. The through holes on the rubber blocks in the wire holes on the wire board are used for the wiring of the internal modules of the cabinet, and the wiring can be carried out in sequence, avoiding messy wiring, and facilitating the installation and disassembly of the independent space modules inside the cabinet, making it clear at a glance and in good order, and avoiding wasting time on site. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 FIG. is a schematic structural view of the expandable secondary equipment screen cabinet provided by the present utility model; Figure 2 FIG. is a schematic structural view of the top cabinet provided by the present utility model; Figure 3 FIG. is a schematic structural view of the wiring structure provided by the present utility model; Figure 4 FIG. is a schematic structural view of the elastic structure provided by the present utility model; Figure 5 FIG. is a schematic structural view of the cabinet provided by the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0012] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0013] Through the personnel in this field, the components in this case are connected in sequence. For the specific connection and operation sequence, reference should be made to the following working principle. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process.
[0014] As Figure 1-5 shown, an expandable secondary equipment screen cabinet includes a cabinet body 1 and a top cabinet 30. The top cabinet 30 can be installed on the top outside of the cabinet body 1. The cabinet body 1 has an openable cabinet door, which is not shown in the figure.
[0015] The top surface of the cabinet body 1 is provided with two pairs of opposite plug boards 17; there is a gap between the plug boards 17.
[0016] The bottom of the top cabinet 30 is open and includes a top panel 11. A first assembly panel 12, a second assembly panel 13, a third assembly panel 14, and a fourth assembly panel 15 arranged clockwise form a ring of side walls for the top cabinet 30. A centrally located top cabinet door 121 is provided on the first assembly panel 12. The top panel 11, the first assembly panel 12, the second assembly panel 13, the third assembly panel 14, and the fourth assembly panel 15 constitute the five surfaces of the top cabinet.
[0017] The first assembly plate 12, the second assembly plate 13, the third assembly plate 14 and the fourth assembly plate 15 are respectively equipped with dovetail blocks 19 and dovetail grooves 20, so that the first assembly plate 12, the second assembly plate 13, the third assembly plate 14 and the fourth assembly plate 15 are sequentially spliced into a rectangular frame.
[0018] The bottom surfaces of the first assembly plate 12, the second assembly plate 13, the third assembly plate 14, and the fourth assembly plate 15 are respectively provided with slots 16 into which insert plates 17 can be inserted; the first assembly plate 12, the second assembly plate 13, the third assembly plate 14, and the fourth assembly plate can be into which insert plates 17 can be inserted.
[0019] The top plate 11 has a ring of protruding parts fixed on the inner wall surface of the first assembly plate 12, the second assembly plate 13, the third assembly plate 14 and the fourth assembly plate 15; the protruding parts fit into the inner wall surface of the assembled first assembly plate 12, the second assembly plate 13, the third assembly plate 14 and the fourth assembly plate 15.
[0020] Elastic structures are respectively installed on the four outer surfaces of the protruding portion and the sides facing the first assembly plate 12, the second assembly plate 13, the third assembly plate 14 and the fourth assembly plate 15. The elastic structures include grooves 23, multiple springs 24 and spheres 25. The grooves 23 are formed in the protruding portion of the top plate 11 and are located on a ring of sidewalls facing the top cabinet 30. One end of the spring 24 is fixed and arrayed in the groove 23. The spheres 25 are installed at the end of the spring 24 and the other end. The length direction of the groove 23 is along the length direction of the insert plate. The springs 24 are arrayed along the length direction of the groove. The spheres 25 are fixed at the end of the spring 24.
[0021] The inner side and inner wall of the first assembly plate 12, the second assembly plate 13, the third assembly plate 14 and the fourth assembly plate 15 are respectively provided with arc-shaped grooves 26 for the ball 25 to be inserted.
[0022] Insert the first assembled board, the second assembled board, the third assembled board, and the fourth assembled board in a clockwise direction so that the燕尾 blocks are snapped into the燕尾 grooves. The height of the燕尾 blocks 19 and the燕尾 grooves 20 is the same as the height of the first assembled board 12. Make the first assembled board, the second assembled board, the third assembled board, and the fourth assembled board form a framework. Fit the framework to the raised part of the top plate, place the framework on the top plate, and by the elasticity of the spring in the groove, make the ball snap into the arc-shaped groove. The spring 24 is preferably a spring with an elastic coefficient that satisfies that the top plate 11 and the framework are not easily separated. Fasten the framework on the plug board, insert the plug board into the slot, and the gap distance between the plug board 17 and the slot 16 is 0.1 - 0.2 mm. The cross-sectional dimensions of the outer surface of the framework and the outer surface of the cabinet body are the same, and assemble the framework on the cabinet body. Complete the assembly of the framework and the bottom plate to expand the longitudinal space of the cabinet body and facilitate adding equipment for use. In addition, the top plate, the first assembled board 12, the second assembled board 13, the third assembled board 14, and the fourth assembled board 15 are convenient for storage and carrying when not in need of expansion, and can also be assembled separately to form an independent open container for use.
[0023] In a preferred embodiment, a horizontal board 2 is fixed in the middle inside the cabinet body 1, a vertical board 3 is fixed on the horizontal board 2, one end of a short board 4 is vertically fixed in the middle of the vertical board 3, and the other end of the short board 4 extends and is fixed on the cabinet body 1. The horizontal board 2, the vertical board 3, and the short board 4 form a "上" character shape, dividing the internal space of the cabinet body 1 into functionally independent standardized modules (such as a power module, a protection control module, a communication module, an interface module, etc.).
[0024] The horizontal board 2 divides the cabinet body into an upper space and a lower space; the vertical board 3 divides the upper space of the cabinet body into a left space and a right space, and the short board 4 further divides the right space into an upper space and a lower space.
[0025] The advantage of such an arrangement is that the cabinet body has a relatively long lower space on the left and right below the horizontal board 2, where items with a large horizontal dimension can be placed, a relatively high left space where items with a large vertical dimension can be placed, and two small spaces on the right side of the vertical board, taking into account different-sized spaces of large, small, high, low, and horizontal.
[0026] Further preferably, through holes are respectively opened on both sides of the horizontal board 2 separated by the vertical board 3, on both vertical sides of the vertical board 3, and on one side of the short board 4. A wire routing structure 5 is fixed on the inner wall of the through hole. The wire routing structure 5 includes a wire board 7, a rubber block 9, and a wire passing hole 10.
[0027] The outer surface of each wire board 7 is fitted to each through hole. Wire holes 8 are arrayed on the wire board 7, the number of wire holes 8 is not less than fifteen, and a rubber block 9 is installed in each wire hole 8. The wire passing hole 10 is opened on the rubber block 9.
[0028] Each space is equipped with a wiring structure 5. The through holes are for embedding and installing the wiring board 7. The wiring board 7 is a cuboid with through wire holes 8. A rubber block 9 is installed in each wire hole 8. The through holes 10 are opened on the rubber blocks 9. When not in use, the through holes 10 are sealed with external rubber plugs to prevent dust from entering. The through holes 10 on the wiring board 7 are used for wiring of the internal modules of the cabinet 1, and the wiring can be arranged in sequence to avoid messy wiring.
[0029] In a preferred embodiment, each dovetail block 19 is covered with a rubber sleeve 21. The rubber sleeve 21 connects and seals the dovetail block 19 with the dovetail groove 20. Each bottom end of the insert plate 17 is covered with a rubber plate 18, which seals the gap between the insert plate 17 and the slot 16. Each of the four sides of the protrusion of the top plate 11 is covered with a rubber strip 22, which seals the gap between the frame, the side wall and the top plate 11.
[0030] In a preferred embodiment, a dust cover (not shown) is also included. The dust cover is a shell with an open bottom, and its inner wall can fit against the outer surface of the four insert plates 17. The outer surface of the dust cover is flush with the outer surface of the cabinet. The dust cover serves two purposes: firstly, to protect the insert plates 17 when the cabinet does not need to be expanded; secondly, to temporarily place items larger than the gap between two insert plates into the four insert plates; and thirdly, to protect the top surface of the cabinet when a wiring structure is provided on the top surface. A rubber strip is preferably fixed to the bottom surface of the dust cover. The sides of the dust cover are detachably connected to the insert plates by screw fasteners.
[0031] In a preferred embodiment, the top cabinet 30 and the cabinet body have square cross-sections. This is to avoid restricting the orientation of the first assembly plate 12 of the top cabinet 30.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An expandable substation secondary equipment cabinet, characterized in that: Includes cabinet body (1) and top cabinet (30); The top surface of the cabinet (1) is provided with two opposite inserts (17); The bottom of the top cabinet (30) is open and includes a top plate (11). The first assembly plate (12), the second assembly plate (13), the third assembly plate (14) and the fourth assembly plate (15) arranged clockwise form a ring of side walls of the top cabinet (30); the first assembly plate (12) is provided with a top cabinet door (121). The first assembly plate (12), the second assembly plate (13), the third assembly plate (14) and the fourth assembly plate (15) are respectively equipped with dovetail blocks (19) and dovetail grooves (20) so that the first assembly plate (12), the second assembly plate (13), the third assembly plate (14) and the fourth assembly plate (15) can be spliced together in sequence. The bottom surfaces of the first assembly plate (12), the second assembly plate (13), the third assembly plate (14) and the fourth assembly plate (15) are respectively provided with slots (16) into which insert plates (17) can be inserted. The top plate (11) has a ring of protruding parts fixed on the inner wall surface of the first assembly plate (12), the second assembly plate (13), the third assembly plate (14) and the fourth assembly plate (15); The four outer surfaces of the protruding part are respectively equipped with elastic structures, the elastic structures including grooves (23), multiple springs (24) and spheres (25). The grooves (23) are opened on the side of the protruding part facing the top cabinet (30). The springs (24) are fixed and arrayed in the grooves (23). The spheres (25) are fixed to the ends of the springs (24). The inner walls of the first assembly plate (12), the second assembly plate (13), the third assembly plate (14) and the fourth assembly plate (15) are respectively provided with arc-shaped grooves (26) for the ball (25) to be inserted.
2. The expandable substation secondary equipment cabinet according to claim 1, characterized in that: A horizontal plate (2) is fixed in the middle of the cabinet (1), and a vertical plate (3) is fixed on the horizontal plate (2). One end of a short plate (4) is vertically fixed in the middle of the vertical plate (3), and the other end of the short plate (4) extends and is fixed on the cabinet (1).
3. The expandable substation secondary equipment cabinet according to claim 2, characterized in that: Through holes are provided on both sides of the horizontal plate (2) separated by the vertical plate (3), on both vertical sides of the vertical plate (3) and on one side of the short plate (4). A wiring structure (5) is fixed on the inner wall of the through hole. The wiring structure (5) includes a wire plate (7), a rubber block (9) and a through hole (10). The surface of each of the wire plates (7) is attached to each through hole, and the array of wire holes (8) is opened on the wire plate (7). The number of wire holes (8) is not less than fifteen. A rubber block (9) is installed in each wire hole (8), and the through hole (10) is opened on the rubber block (9).
4. The expandable substation secondary equipment cabinet according to claim 1, characterized in that: Each of the dovetail blocks (19) is covered with a rubber sleeve (21).
5. The expandable substation secondary equipment cabinet according to claim 1, characterized in that: It also includes a dust cover, which is a shell with an open bottom, and the inner wall of the dust cover can be attached to the outer surface of the four inserts (17).
6. The expandable substation secondary equipment cabinet according to claim 1, characterized in that: The top cabinet (30) has a square cross-section.