Box-type substation based on functional module reconstruction

Abstract

The invention relates to the technical field of electrical equipment, in particular to a box-type substation based on functional module reconstruction, which comprises a main box body, the front surface of the main box body is a maintenance surface and is provided with a maintenance opening, and the back surface of the main box body is a wiring surface and is provided with a wiring opening; a bus skeleton cabin extending along the length direction of the main box body is fixedly arranged in the main box body and close to the wiring surface; a main bus assembly arranged along the length direction of the box body and a plurality of branch interface assemblies electrically connected with the main bus assembly are arranged in the bus skeleton cabin; the front surface of the bus skeleton cabin is provided with a plurality of standard installation positions with a unified size along the length direction of the bus skeleton cabin. According to the invention, by adopting the unit function modules of which the installation positions and the widths are in the integral multiple relationship, the function configuration of the transformer substation is not fixed any more, the modules with different functions can be freely selected and combined according to actual requirements, and each function module is an independent packaging unit, so that the function adjustment, capacity expansion or change are facilitated.

Description

Technical Field

[0001] This invention relates to the field of electrical equipment technology, and in particular to a prefabricated substation based on functional module reconfiguration. Background Technology

[0002] Substations are key facilities in power systems used to transform voltage and distribute electrical energy, and are responsible for connecting power grids of different voltage levels. As a type of prefabricated substation that integrates high-voltage switchgear, transformers, and low-voltage distribution equipment into a sealed enclosure, the box-type substation has the characteristics of small footprint, short construction period, and strong environmental adaptability, and is widely used in urban power distribution networks, industrial and mining enterprises, and various construction projects.

[0003] Currently, conventional prefabricated substations mostly adopt an integrated or fixed partitioned structure. The layout, capacity, and functions of the internal electrical equipment are determined at the factory. When the user's power load changes, new functions need to be added, or some equipment needs to be upgraded or replaced, it is often necessary to carry out a large-scale renovation of the entire enclosure, or even replace the entire substation. This fixed structural design lacks flexibility and is difficult to adjust according to changes in actual application scenarios. Summary of the Invention

[0004] In view of this, the purpose of this invention is to propose a prefabricated substation based on functional module reconfiguration, so as to solve the problem that the functional configuration of existing prefabricated substations is rigid due to their fixed overall structure and difficult to adjust flexibly according to actual needs.

[0005] To achieve the above objectives, the present invention provides a prefabricated substation based on functional module reconfiguration, comprising a main enclosure. The front of the main housing is the maintenance surface, which has a maintenance opening; the back is the wiring surface, which has a wiring opening. A busbar frame compartment extending along its length is fixedly installed inside the main enclosure and near the wiring surface. The busbar frame compartment is equipped with a main busbar assembly arranged along the length of the box, and multiple branch interface assemblies electrically connected to the main busbar assembly; The front of the busbar frame compartment has multiple standard mounting positions of uniform size along its length. The standard mounting position is equipped with a guide loading and unloading structure; Multiple unit functional modules can be detachably installed on the front of the busbar frame compartment through the maintenance opening and with the aid of a guide loading and unloading structure that matches the standard mounting position; Each of the aforementioned unit functional modules is provided with a plug-in electrical connection structure for docking with the corresponding branch interface component when installed in place; Each of the standard mounting positions has a standard unit width, and the width of each unit functional module is an integer multiple of the standard unit width, so that multiple unit functional modules can be combined and assembled with different widths on the front of the busbar frame compartment as needed.

[0006] Furthermore, the unit functional module includes a unit mounting bracket; The plug-in electrical connection structure is located on the back of the unit mounting frame, and includes a unit docking block fixed to the back of the unit mounting frame. The unit docking block is provided with a main circuit connection socket and a control bus connection socket. The branch interface component includes a movable docking frame that can slide up and down. The bottom of the movable docking frame is provided with a main circuit connection plug and a control bus connection plug that correspond to the main circuit connection socket and the control bus connection socket, respectively. Once the unit functional module is slidably installed into the corresponding standard mounting position via the guide loading and unloading structure, the movable docking frame can slide downwards, causing the main circuit connection plug and the control bus connection plug to be inserted into the main circuit connection socket and the control bus connection socket respectively, so as to complete the electrical connection.

[0007] Furthermore, the branch interface assembly also includes an insulating protective box, which is fixedly connected to the busbar frame compartment; The movable docking frame is vertically slidably fitted inside the insulating protective box; The bottom of the insulating protective box is provided with a protective opening for the movable docking frame to slide in and out; It also includes a protective baffle, which is horizontally fitted and slidably disposed at the protective opening; The top surface of the protective baffle is provided with a guide slope, which cooperates with the movable docking frame; When the movable docking frame slides downward to make insertion, the movable docking frame pushes the protective baffle to slide through the guide ramp, thereby opening the protective opening; When the movable docking frame slides upward and is stored in the insulating protective box, the protective baffle slides back to its original position under the traction of the closing spring in the middle, so as to close the protective opening.

[0008] Furthermore, the branch interface component also includes a docking drive mechanism; The docking drive mechanism includes a docking pressure arm, one end of which is rotatably connected to the busbar frame compartment via a pressure arm pivot, and the other end is provided with a docking operation handle; The docking arm is provided with a guide groove extending along its length. A connecting shaft is slidably fitted inside the guide groove of the pressure arm, and the connecting shaft is rotatably connected to the side wall of the movable docking frame. When the docking operation handle is pressed down, driving the docking pressure arm to rotate downward around the pressure arm pivot, the connecting pivot slides along the pressure arm guide groove and drives the movable docking frame to slide downward synchronously through the connecting pivot. When the docking operation handle is lifted, causing the docking pressure arm to rotate upward around the pressure arm pivot, the connecting pivot drives the movable docking frame to slide upward synchronously.

[0009] Furthermore, an insulating spacer is provided between the busbar frame compartment and the standard mounting position, and the insulating spacer is provided with a mating clearance opening; The docking clearance opening corresponds to the position of the unit docking block and its shape is matched; The docking clearance opening is fitted with a spacer protective plate that slides in place. The front side of the partition protective plate is provided with a driving slope, which cooperates with the unit docking block; When the unit functional module is slidably installed in place, the unit docking block contacts and acts on the driving inclined surface, pushing the spacer protection plate to slide, thereby simultaneously opening the docking clearance opening, allowing the unit docking block to pass through the docking clearance opening and enter the busbar frame compartment. When the unit functional module is slid unloaded, the spacer protective plate slides back to its original position under the traction of the protective spring in its middle, so as to close the docking clearance opening.

[0010] Furthermore, the guiding loading and unloading structure includes a support guide rail horizontally disposed at the bottom of the standard mounting position, and a support guide groove disposed at the bottom of the unit mounting frame; The unit mounting bracket is installed and disassembled through a horizontal sliding fit between the support guide groove and the support guide rail; The support guide rail is provided with a positioning and locking groove; A locking guide sleeve is vertically provided at the support guide groove of the unit mounting frame, and a positioning locking pin is slidably fitted inside the locking guide sleeve; The positioning locking pin cooperates with the positioning locking groove. When the unit mounting bracket slides to the installation position, the positioning locking pin can fall down and lock into the positioning locking groove to achieve locking.

[0011] Furthermore, the locking guide sleeve is provided with an interlocking guide groove, and an interlocking adjusting rod is slidably fitted into the interlocking guide groove; An interlocking top pressure block is connected to the outside of the movable docking frame; The interlocking adjusting rod corresponds to and cooperates with the interlocking top pressure block; When the movable docking frame slides downward to make an electrical connection, the interlocking top pressure block pushes the interlocking adjusting rod to slide along the interlocking guide groove to directly above the positioning locking pin, thereby preventing the positioning locking pin from sliding upward to unlock. When the movable docking frame slides upward to release the electrical connection, the interlocking adjusting rod slides in the opposite direction under the action of the unlocking spring in its middle, moving away from directly above the positioning locking pin. At this time, the positioning locking pin can slide upward to unlock.

[0012] Furthermore, a protective sealing plate is provided on the front of the maintenance opening; The bottom of the protective enclosure plate is rotatably connected to the bottom edge of the maintenance opening via a support pivot. The bottom of the maintenance opening is also provided with a limit support block. When the protective enclosure plate is rotated outward around the support axis to a horizontal state, it is supported and limited by the limit support block. The inner side of the protective enclosure is provided with an extension guide rail; The extension guide rail is horizontally slidably connected to the protective enclosure plate via a support slider, allowing the extension guide rail to slide inward or outward relative to the protective enclosure plate. When the protective enclosure is flipped to a horizontal position, the extension guide rail can slide inward, so that its inner end is aligned with the outer end of the support guide rail, thereby forming a continuous guide rail channel. At this time, the movable docking frame can slide and transfer between the assembled extension guide rail and the support guide rail.

[0013] Furthermore, the outer side of the protective enclosure is provided with a folding storage groove; The folding storage slot is provided with a folding support leg. The top of the folding support leg is rotatably connected to a guide support block through a folding pivot, and the bottom of the leg is provided with a support foot. The front end of the folding storage slot is provided with a guide support groove, and the guide support block is slidably fitted into the guide support groove; The inner side of the guide support groove is provided with a limiting fitting groove; When the protective enclosure plate is flipped to a horizontal state and the folding support leg is flipped to a vertical support state around the folding pivot, the folding support leg, through the ground support reaction force obtained by the support foot, pushes the guide support block to slide along the guide support groove until the top part of the folding support leg is embedded in the limiting fitting groove, thereby realizing the rotation locking of the folding support leg.

[0014] Furthermore, a horizontal return spring is provided in the middle of the support slider; The bottom side of the support slider has a top pressure slope; The top of the folding support leg has a corresponding inclined surface; When the folding support leg is unfolded to a vertical position and its top end is inserted into the limiting groove under the driving force of the support reaction, the linkage inclined surface cooperates with the top pressing inclined surface to push the support slider to slide inward against the elastic force of the horizontal return spring. The inner sliding of the support slider synchronously drives the extension guide rail to move inward until the inner end of the extension guide rail is aligned with the outer end of the support guide rail.

[0015] As can be seen from the above, the prefabricated substation based on functional module reconfiguration provided by the present invention has the following beneficial effects: 1. Through the design of unit functional modules with standard installation positions and integer multiples of width, users can freely combine different functional modules according to their needs, which facilitates function adjustment, expansion or replacement, provides flexible modular configuration capabilities, and enhances the adaptability and scalability of substations.

[0016] 2. Dynamic isolation is formed by the insulating protective box, the automatically opening and closing protective baffle and the interval protective plate. Combined with the mechanical and electrical interlocking mechanism, the operation sequence of power off first and then unlocking is forced, realizing multi-level safety protection and interlocking, and improving the safety of equipment operation and maintenance.

[0017] 3. The flip-up protective enclosure can be converted into a work platform with automatic support and guide rail linkage, extending operations such as module assembly and disassembly, and component transfer to the outside of the enclosure. This simplifies the process, reduces labor intensity, improves maintenance working conditions, and optimizes the convenience and efficiency of maintenance operations. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural schematic diagram of the unit functional module in the assembly and disassembly state according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the front structure of the main housing according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the rear structure of the main housing according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the protective enclosure plate in the open state according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the wiring opening structure according to an embodiment of the present invention; Figure 6This is a schematic diagram of the folding storage slot according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the standard mounting position according to an embodiment of the present invention; Figure 8 This is a partial structural schematic diagram of the busbar frame compartment according to an embodiment of the present invention; Figure 9 This is a partial structural schematic diagram of the insulating spacer according to an embodiment of the present invention; Figure 10 This is a structural schematic diagram of the mobile docking frame connection state according to an embodiment of the present invention; Figure 11 This is a schematic diagram of the structure of the movable docking frame according to an embodiment of the present invention; Figure 12 This is a partial structural schematic diagram of the protective opening according to an embodiment of the present invention; Figure 13 This is a schematic diagram of the structure of the unit mounting bracket according to an embodiment of the present invention; Figure 14 This is a schematic diagram of the structure of the unit docking block according to an embodiment of the present invention; Figure 15 This is a schematic diagram of the locking guide sleeve according to an embodiment of the present invention.

[0020] The diagram is marked as follows: 1. Main enclosure; 101. Maintenance opening; 102. Limiting support block; 103. Wiring opening; 104. Protective door; 2. Protective enclosure plate; 201. Support shaft; 202. Inspection door; 203. Fixing latch; 204. Extension guide rail; 205. Support slider; 206. Horizontal return spring; 207. Top pressure slope; 3. Folding storage slot; 301. Guide support slot; 302. Guide support block; 303. Limiting fitting slot; 304. Vertical return spring; 305. Folding support leg; 306. Folding shaft; 307. Support base; 308. Linkage slope; 4. Busbar frame compartment; 401. Main busbar assembly; 402. Branch interface assembly; 403. Insulating partition plate; 404. Docking clearance opening; 405. Partition protection plate; 406. Drive slope; 407. Protective 5. Standard mounting position; 501. Support rail; 502. Positioning and locking groove; 6. Insulating protective box; 601. Protective opening; 602. Protective baffle; 603. Guide slope; 604. Enclosing spring; 7. Moving docking frame; 701. Main circuit connection plug; 702. Control bus connection plug; 703. Connecting shaft; 704. Docking pressure arm; 705. Pressure arm shaft; 706. Pressure arm guide groove; 707. Docking operation handle; 8. Unit functional module; 801. Unit mounting frame; 802. Support guide groove; 803. Unit docking block; 804. Circuit connection socket; 805. Control bus connection socket; 9. Locking guide sleeve; 901. Positioning locking pin; 902. Interlocking guide groove; 903. Interlocking adjusting rod; 904. Unlocking spring; 905. Interlocking top pressure block. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0022] It should be noted that, unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 As shown, a prefabricated substation based on functional module reconfiguration includes a main box 1. The front of the main box 1 is a maintenance surface with a maintenance opening 101, and the back is a wiring surface with a wiring opening 103. A busbar frame compartment 4 extending along its length is fixedly installed inside the main enclosure 1 and near the wiring surface. The busbar frame compartment 4 is equipped with a main busbar assembly 401 arranged along the length of the box, and multiple branch interface assemblies 402 electrically connected to the main busbar assembly 401. On the front of the busbar frame compartment 4, along its length, there are multiple standard mounting positions 5 with uniform dimensions. The standard installation position 5 is equipped with a guide loading and unloading structure; Multiple unit functional modules 8 can be detachably installed on the front of the busbar frame compartment 4 through maintenance openings 101 and with the aid of a guide loading and unloading structure that matches the standard mounting position 5. Each unit functional module 8 is equipped with a plug-in electrical connection structure for docking with the corresponding branch interface component 402 when installed in place; Each standard mounting position 5 has a standard unit width, and the width of each unit functional module 8 is an integer multiple of the standard unit width, so that multiple unit functional modules 8 can be combined and assembled with different widths on the front of the busbar frame compartment 4 as required.

[0024] In this embodiment, the substation includes a main enclosure 1. The front of the main enclosure 1 is designed as a maintenance surface with a maintenance opening 101, while the back is designed as a wiring surface with a wiring opening 103 to facilitate operation and the introduction and exit of external cables. Inside the main enclosure 1, near the wiring surface, a busbar frame compartment 4 extending along the length of the enclosure is fixedly installed. The busbar frame compartment 4 forms the backbone of the electrical connection. Inside it, there is a main busbar assembly 401 arranged along the length direction, and multiple branch interface assemblies 402 electrically connected to the main busbar assembly 401. On the wall of the busbar frame compartment 4 facing the maintenance opening 101, there are multiple standard mounting positions 5 with uniform size specifications arranged along its length direction. Each standard mounting position 5 is equipped with a guide loading and unloading structure. Multiple independently packaged unit functional modules 8 can be detachably installed and fixed on the front of the busbar frame compartment 4 through maintenance openings 101 and with the aid of a guide loading and unloading structure that matches the standard mounting position 5. Each unit functional module 8 integrates a plug-in electrical connection structure. When the module is installed in place, the electrical connection structure can dock with the corresponding branch interface component 402 in the busbar frame compartment 4 to complete the electrical connection. Each standard mounting position 5 defines a standard unit width, and the external dimension width of each unit functional module 8 is designed to be an integer multiple of the standard unit width. This allows multiple unit functional modules 8 to be flexibly assembled in combination with different width specifications within the limited space on the front of the busbar frame compartment 4 according to actual functional requirements and electrical schemes, realizing a modular arrangement of functions.

[0025] These functional modules 8 can be defined according to the core equipment they contain and the functions they perform. For example, they can form a high-voltage functional module specifically responsible for high-voltage access and operation, a main transformer module that houses the transformer, a low-voltage power distribution module responsible for power distribution, a communication control module that integrates an intelligent monitoring unit, and a heat dissipation functional module dedicated to heat dissipation. According to the specific design requirements of the substation, modules with corresponding functions and widths can be selected for combination and installation. When a module needs to be repaired, upgraded or replaced, it can be installed and removed independently without changing the overall structure. When it is necessary to expand the functions of the substation, new functional modules can also be added to the reserved standard installation position 5. By adopting standardized installation positions and unit functional modules 8 with widths in integer multiples, the substation's functional configuration is no longer fixed. Different functional modules can be freely selected and combined like building blocks according to actual project needs, facilitating future functional adjustments, expansions, or changes. Furthermore, standardized interfaces and modular design enable standardized production and management of functional modules. During installation, commissioning, and subsequent maintenance, individual functional modules can be installed, tested, replaced, or upgraded independently, reducing the complexity and time cost of on-site operations. Simultaneously, each functional module is an independently packaged unit, with electrical connections between them via standard plug-in interfaces to the busbar frame compartment 4, reducing mutual interference between modules. When a module malfunctions, it can be quickly located and replaced individually, improving the overall reliability of the substation system.

[0026] like Figures 1 to 15As shown, preferably, the main body of the unit functional module 8 is a unit mounting frame 801, which is used to carry and fix the electrical equipment inside. On the back of the unit mounting frame 801, a plug-in electrical connection structure is integrated. This structure includes a unit docking block 803 fixed on the mounting frame. On this unit docking block 803, a main circuit connection socket 804 for connecting the main circuit and a control bus connection socket 805 for signal transmission are respectively provided. Corresponding to the interface of the unit functional module 8, the branch interface assembly 402 in the busbar frame compartment 4 includes a movable docking frame 7 that can slide in the vertical direction. At the bottom of the movable docking frame 7, the main circuit connection plug 701 and the control bus connection plug 702 are installed accordingly. When the operator pushes the unit functional module 8 into the corresponding standard installation position 5 along the guide loading and unloading structure and makes it reach the predetermined installation position, the mobile docking frame 7 can be operated to slide downward. During the downward movement, the main circuit connection plug 701 and control bus connection plug 702 at the bottom of the mobile docking frame 7 are aligned and inserted into the corresponding main circuit connection socket 804 and control bus connection socket 805 on the unit docking block 803, thereby completing the reliable connection between high-voltage and low-voltage electricity. The unit functional module 8 must be physically installed and fixed in place before the mobile docking frame 7 can be driven to complete the electrical connection. The fixed operation sequence helps to prevent misoperation and improve safety. At the same time, since the electrical connection adopts a plug-in structure, when it is necessary to perform offline maintenance, testing or replacement of a unit functional module 8, the mobile docking frame 7 can be easily raised and disconnected to disconnect the electrical connection, and then the module can be removed as a whole. This supports independent maintenance operations of the functional unit without interfering with the operation of other modules. In addition, a closable protective door 104 is provided at the wiring opening 103 on the back of the main enclosure 1. The protective door 104 is closed during normal operation to ensure safety. When cable construction, wiring or inspection is carried out, the protective door 104 can be opened to provide a passage for operators to enter and operate.

[0027] like Figures 1 to 15 As shown, preferably, the branch interface assembly 402 includes an insulating protective box 6 fixedly connected to the busbar frame compartment 4. This box provides an isolated installation and movement space for the movable docking frame 7. The movable docking frame 7 is vertically slidably fitted into the inner cavity of the insulating protective box 6. At the bottom of the insulating protective box 6, a protective opening 601 is provided for the movable docking frame 7 to extend or retract. To close this opening when docking is not in progress, a horizontally slidable protective baffle 602 is provided. The top surface of this protective baffle 602 is machined with a guide slope 603. The working process is as follows: when an electrical connection needs to be established, the movable docking frame 7 is driven to slide downwards. In the initial stage of its descent, the bottom of the movable docking frame 7 contacts and presses against the guide slope 603 of the protective baffle 602. The slope decomposes the downward force into a horizontal component, thereby pushing the protective baffle 602 to slide to the side, opening the protective opening 601 and allowing the movable docking frame 7 to extend smoothly. When the electrical connection is completed and the movable docking frame 7 needs to retract, it is pulled upwards. After it is fully inside the insulating protective box 6, it loses its pressure on the protective baffle 602. At this time, the closing spring 604 set between the protective baffle 602 and the box releases its elastic force, pulling the protective baffle 602 to slide horizontally back to its original position, and re-closing the protective opening 601 at the bottom. Thus, the insulating protective box 6 and the automatically opening and closing protective baffle 602 form a dynamic safety barrier. The protective opening 601 will only open for a short period of time when the movable docking frame 7 needs to be extended for insertion. When the equipment is in normal operation or standby, the opening is automatically closed, effectively isolating the live parts in the busbar frame compartment 4 and reducing the risk of accidental contact by personnel or foreign objects falling in. To facilitate the lifting and lowering of the mobile docking frame 7 with minimal effort, a docking drive mechanism is also provided. The core of this mechanism is a docking pressure arm 704, one end of which is hinged to the busbar frame compartment 4 via a pressure arm pivot 705, serving as a fulcrum. The other end is equipped with a docking operation handle 707 for the operator to hold. A pressure arm guide groove 706 is formed along the length of the docking pressure arm 704. A connecting pivot 703 passes through this guide groove, and the other end of the connecting pivot 703 forms a rotatable connection with the side wall of the mobile docking frame 7. Thus, the connecting pivot 703 can both slide within the guide groove and serve as a connection point with the mobile docking frame 7. When insertion and docking are required, the operator presses down the docking operation handle 707, causing the docking pressure arm 704 to rotate downward around the pressure arm pivot 705. This rotation forces the connecting pivot 703 to slide and displace relative to the pressure arm guide groove 706, thereby pulling the movable docking frame 7 downward in a linear motion through the pivot. Conversely, when the operation handle is lifted, the docking pressure arm 704 rotates upward, driving the movable docking frame 7 to slide upward and retract through the connecting pivot 703. The presence of the pressure arm guide groove 706 ensures that the rotational motion can be smoothly and accurately converted into the required linear motion. Thus, the docking drive mechanism uses the lever principle to convert the larger stroke and smaller force of the operation handle into the shorter stroke and larger force required by the movable docking frame 7, making the insertion and removal of heavy electrical connectors easier.

[0028] like Figures 1 to 15As shown, preferably, a fixed insulating partition plate 403 is provided between the busbar skeleton compartment 4 and the standard mounting position 5 on the front of the bearing unit functional module 8, serving as a physical isolation barrier between the two. On this insulating partition plate 403, a docking clearance opening 404 corresponding to the unit docking block 803 on the unit functional module 8 is provided. The position, shape and size of the opening match the design of the unit docking block 803 to ensure that it can pass through smoothly. When the module is not installed, the partition plate 405 can effectively seal the opening leading to the live busbar skeleton compartment 4, preventing foreign objects from entering or personnel from accidentally touching live parts, and realizing active safety protection linked with equipment status. To close the opening when not in contact with the module, a sliding spacer plate 405 is installed at the opening. The front side of the spacer plate 405, facing the installation direction of the unit functional module 8, has a drive ramp 406. The operation is as follows: when the operator pushes the unit functional module 8 along the guide rail into the standard installation position 5, as the module approaches its installation position, the front end of its unit docking block 803 first contacts the drive ramp 406 of the spacer plate 405. As the module continues to advance, the unit docking block 803 applies a horizontal force through the drive ramp 406, pushing the spacer plate 405 to slide laterally, thus opening the docking clearance opening 404. This process is synchronized with the module's advancement action. When the module is fully installed… When in position, the docking clearance opening 404 is also fully open, allowing the unit docking block 803 to pass through the opening and enter the busbar frame compartment 4, preparing for subsequent electrical connections. Conversely, when the module needs to be disassembled, the module is pulled outward to detach it. Once the unit docking block 803 is completely withdrawn from the opening, the unobstructed partition protection plate 405, under the traction or push of the pre-compressed protection spring 407, immediately slides back to its original position, resealing the docking clearance opening 404. The movement of the partition protection plate 405 is automatically triggered by the installation of the module itself through the inclined plate mechanism, seamlessly integrating safety protection measures into the standard installation process. While improving safety, no additional operating steps are added, ensuring convenient and smooth operation.

[0029] like Figures 1 to 15 As shown, preferably, a support rail 501 is horizontally fixed at the bottom of each standard mounting position 5. Correspondingly, a support guide groove 802 matching the support rail 501 is provided at the bottom of the unit mounting frame 801 of each unit functional module 8. During installation, the operator aligns the support guide groove 802 at the bottom of the module with the support rail 501. Through the horizontal sliding cooperation between the two, the module can be smoothly pushed into or pulled out of the installation position, realizing mechanical installation and disassembly. To ensure that the module will not move or loosen unexpectedly after installation, a special locking mechanism is provided. A positioning locking groove 502 is machined on the support guide rail 501. The position of the groove corresponds to the final position of the module after installation. Near the support guide groove 802 of the unit mounting bracket 801, a locking guide sleeve 9 is vertically fixed. A positioning locking pin 901 is fitted into the guide sleeve in a way that can slide up and down. When the operator pushes the unit functional module 8 along the guide rail to the predetermined installation position, the positioning locking pin 901 will automatically fall under its own weight or the action of the built-in spring. The lower end of the falling positioning locking pin 901 will precisely engage in the positioning locking groove 502 on the support guide rail 501. This pin-groove cooperation creates mechanical interference in the horizontal direction, thereby reliably locking the module in the current position and preventing it from sliding along the guide rail. When maintenance is required on a module, simply pull the positioning locking pin 901 upwards to directly pull the module out along the guide rail.

[0030] like Figures 1 to 15 As shown, preferably, an interlocking guide groove 902 is added to the locking guide sleeve 9, and an interlocking adjusting rod 903 is slidably fitted in the groove. At the same time, an interlocking top pressing block 905 is provided on the front side of the movable docking frame 7 that can slide up and down, and the position of the top pressing surface corresponds to the outer end of the interlocking adjusting rod 903. When the operator drives the movable docking frame 7 to slide downwards so that its bottom connector plug can be inserted into the module's connector socket to establish an electrical connection, the interlocking top pressure block 905 on the movable docking frame 7 will contact and push the interlocking adjusting rod 903 during the downward movement, causing it to slide inwards along the interlocking guide groove 902. When the movable docking frame 7 reaches the bottom and completes the docking, the interlocking adjusting rod 903 slides exactly above the positioning locking pin 901, forming a mechanical block that prevents the positioning locking pin 901 from being pulled upwards, thereby maintaining the mechanical locking state of the unit functional module 8. Conversely, when the module needs to be disassembled, the operator first lifts the movable docking frame 7 to disconnect the power connection. As the movable docking frame 7 slides upward, the interlocking top pressure block 905 moves away, and the pushing force on the interlocking adjusting rod 903 disappears. At this time, the unlocking spring 904 set between the interlocking adjusting rod 903 and the guide groove releases its elastic force, pushing the interlocking adjusting rod 903 to slide in the opposite direction, so that it moves away from the area directly above the positioning locking pin 901. Once the obstruction is removed, the positioning locking pin 901 can slide upward freely. Only then can the operator release the mechanical lock of the unit functional module 8 and pull it out. This linkage mechanism ensures a mandatory operating logic of powering on first and locking later, and powering off first and unlocking later. From a mechanical structure perspective, it prevents the possibility of accidentally removing the mechanical lock while the electrical connection is still connected, effectively avoiding dangerous operations such as plugging and unplugging while the power is on, and significantly improving the safety of maintenance and operation processes.

[0031] like Figures 1 to 15 As shown, preferably, a protective sealing plate 2 is provided on the front of the maintenance opening 101 on the maintenance surface of the main housing 1. The bottom of the plate is rotatably connected to the bottom edge of the maintenance opening 101 through a support pivot 201, so that the protective sealing plate 2 can be flipped outward like a door. At the bottom of the maintenance opening 101, a limiting support block 102 is installed. When the protective sealing plate 2 is flipped outward around the support pivot 201 to a horizontal position, its back side will abut against the limiting support block 102, thereby forming a horizontally supported platform. An extension guide rail 204 is installed on the inner side of the protective enclosure plate 2, that is, the side facing the inside of the box. The extension guide rail 204 is horizontally slidably connected to the protective enclosure plate 2 through the support slider 205. Therefore, the extension guide rail 204 can slide inward or outward relative to the protective enclosure plate 2. When performing maintenance operations, the protective enclosure 2 can be unlocked and flipped outward to a horizontal position, supported by the limiting support block 102. Then, the operator can slide the extension guide rail 204 inward, that is, towards the inside of the box, until its inner end is precisely aligned with the outer end of the support guide rail 501 fixed at the bottom of the standard mounting position 5 inside the box. In this way, the originally disconnected guide rails are connected into a continuous guide rail channel extending from the outer platform to the inner mounting position. This design allows large or heavy components to be moved out or put in smoothly and effortlessly, solving the difficulty of operation and alignment in narrow box openings. At this time, the mobile docking frame 7 or other related components can slide along this continuous guide rail channel to realize the transfer from the inside of the box to the outside working platform, or the reverse operation to transform the single protective door 104 into a horizontal working platform with load-bearing capacity. When the module is replaced or the component is repaired, this platform can provide convenient working space for the operator, and at the same time, it serves as a buffer for component transfer, improving the operating conditions and providing convenience for maintenance, replacement or debugging. During normal operation of the substation, the maintenance opening 101 is closed and protected by the closed protective enclosure 2. The protective enclosure 2 is usually locked in the closed position by the fixed latch 203 set on its edge. In addition, in order to facilitate small-scale inspections or operations on a daily basis, a small maintenance door 202 that can be opened and closed independently is also opened in the middle part of the protective enclosure 2, so that it is possible to enter and exit without fully opening the entire large plate.

[0032] like Figures 1 to 7As shown, preferably, multiple folding storage slots 3 for storage are provided on the outer side of the protective enclosure plate 2. Folding support legs 305 are provided in the slots. The top of the support leg is rotatably connected to a guide support block 302 through a folding pivot 306, and the bottom is equipped with a support foot 307. At the front end of the folding storage slot 3, that is, on the side away from the box, a guide support slot 301 is processed. The guide support block 302 is fitted into the slot and can slide along it. At the inner end of the guide support slot 301, a limiting fitting slot 303 is provided. When maintenance is performed and the protective enclosure 2 is flipped to a horizontal position, the folding support leg 305 naturally and automatically flips out of its storage slot due to gravity, allowing it to rotate around the folding pivot 306 to a roughly vertical position. When the protective enclosure 2 is closed, the folding support leg 305 also naturally flips and embeds itself into the storage slot. When the support foot 307 of the support leg contacts the ground and begins to bear the protective enclosure 2 and possible operational loads, the support reaction force generated by the ground is transmitted through the support leg, pushing the guide support block 30 connected to its top. 2. Slide along the guide support groove 301 inward, that is, towards the limiting fitting groove 303, until the top part of the folding support leg 305 is completely slid into and embedded in the limiting fitting groove 303. This embedding fit structurally restricts the rotation of the folding pivot 306, thereby locking the vertical state of the support leg and keeping it stable when bearing weight. The limiting fitting groove 303 is also provided with a vertical return spring 304, which makes it easy to push the folding support leg 305 away from the limiting fitting groove 303 to unlock when the protective enclosure plate 2 is closed. In order to link the unfolding and locking action of the support leg with other functions, a horizontal return spring 206 is also installed between the support slider 205 and the guide support groove 301 to provide the slider with a reverse return force. The bottom side of the support slider 205 is machined with a pressing slope 207, while the corresponding position at the top of the folding support leg 305 is machined with a linkage slope 308. As the aforementioned folding support leg 305 unfolds to a vertical position and its top end embeds into the limiting engagement groove 303 under the drive of the support reaction force, the linkage inclined surface 308 at its top end contacts and presses against the top pressing inclined surface 207 at the bottom of the support slider 205. This inclined surface engagement converts the inward and upward movement of the support leg top end into a horizontal component force that pushes the support slider 205 to overcome the elastic force of the horizontal return spring 206 and continue sliding inward. Since the extension guide rail 204 is connected to the protective enclosure plate 2 through the support slider 205, the support slider 205... This inward sliding motion simultaneously moves the extension guide rail 204 inward as well. Finally, when the top of the support leg is fully engaged in the limiting groove 303 and locked in place, the inner end of the extension guide rail 204 is also aligned with the outer end of the support guide rail 501 inside the box. This combines the two operations of unfolding the support leg and docking the extension guide rail 204, which might have been performed separately, into a single continuous action through the inclined plane linkage mechanism. The operator only needs to unfold and load the folded support leg 305 to automatically and synchronously complete the precise alignment of the guide rail, simplifying the operation process and improving work efficiency.

[0033] The prefabricated substation based on functional module reconfiguration provided by this invention adopts standardized installation positions and unit functional modules 8 with widths that are integer multiples of each other. This makes the functional configuration of the substation no longer fixed, allowing for the free selection and combination of modules with different functions according to actual needs. This facilitates future adjustments, expansions, or changes to functions. Furthermore, the standardized interfaces and modular design facilitate standardized production and management of functional modules. During installation, commissioning, and subsequent maintenance, individual functional modules can be installed, tested, replaced, or upgraded independently, reducing the complexity and time cost of on-site operations. At the same time, each functional module is an independently packaged unit, and the electrical connections between them are connected to the busbar frame compartment 4 through standard plug-in interfaces, reducing mutual interference between modules. When a module fails, it can be quickly located and replaced individually, which helps improve the operational reliability of the entire substation system.

[0034] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity. Any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A prefabricated substation based on functional module reconfiguration, comprising a main enclosure (1), characterized in that: The front of the main housing (1) is a maintenance surface with a maintenance opening (101), and the back is a wiring surface with a wiring opening (103). The main housing (1) is equipped with a busbar frame compartment (4) that extends along its length at the interior and near the wiring surface. The busbar frame compartment (4) is provided with a main busbar assembly (401) arranged along the length of the box, and a plurality of branch interface assemblies (402) electrically connected to the main busbar assembly (401); On the front of the busbar frame compartment (4), along its length, there are multiple standard mounting positions (5) with uniform dimensions. The standard mounting position (5) is equipped with a guide loading and unloading structure; Multiple unit functional modules (8) can be detachably installed on the front of the busbar frame compartment (4) through the maintenance opening (101) and by means of a guide loading and unloading structure that matches the standard mounting position (5); Each of the unit functional modules (8) is provided with a plug-in electrical connection structure for docking with the corresponding branch interface component (402) when installed in place; Each of the standard mounting positions (5) has a standard unit width, and the width of each unit functional module (8) is an integer multiple of the standard unit width, so that multiple unit functional modules (8) can be combined and assembled with different widths on the front of the busbar frame compartment (4) as required.

2. The prefabricated substation based on functional module reconfiguration according to claim 1, characterized in that, The unit functional module (8) includes a unit mounting bracket (801); The plug-in electrical connection structure is located on the back of the unit mounting bracket (801), and includes a unit docking block (803) fixed to the back of the unit mounting bracket (801). The unit docking block (803) is provided with a main circuit connection socket (804) and a control bus connection socket (805). The branch interface component (402) includes a movable docking frame (7) that can slide up and down. The bottom of the movable docking frame (7) is provided with a main circuit connection plug (701) and a control bus connection plug (702) that correspond to the main circuit connection socket (804) and the control bus connection socket (805) respectively. When the unit functional module (8) is slidably installed to the corresponding standard installation position (5) through the guide loading and unloading structure and is in place, the movable docking frame (7) can slide down, driving the main circuit connection plug (701) and the control bus connection plug (702) to be inserted into the main circuit connection socket (804) and the control bus connection socket (805) respectively to complete the electrical connection.

3. The prefabricated substation based on functional module reconfiguration according to claim 2, characterized in that, The branch interface assembly (402) also includes an insulating protective box (6), which is fixedly connected to the busbar frame compartment (4); The movable docking frame (7) is fitted and slidably disposed on the inner side of the insulating protective box (6); The bottom of the insulating protective box (6) is provided with a protective opening (601) for the movable docking frame (7) to slide in and out; It also includes a protective baffle (602), which is horizontally fitted and slidably disposed at the protective opening (601); The top surface of the protective baffle (602) is provided with a guide slope (603), which cooperates with the movable docking frame (7); When the movable docking frame (7) slides down to make an insertion, the movable docking frame (7) pushes the protective baffle (602) to slide through the guide ramp (603), thereby opening the protective opening (601); When the movable docking frame (7) slides upward and is stored in the insulating protective box (6), the protective baffle (602) slides back to its original position under the traction of the closing spring (604) set in its middle, so as to close the protective opening (601).

4. The prefabricated substation based on functional module reconfiguration according to claim 3, characterized in that, The branch interface component (402) also includes a docking drive mechanism; The docking drive mechanism includes a docking pressure arm (704), one end of which is rotatably connected to the busbar frame compartment (4) via a pressure arm pivot (705), and the other end is provided with a docking operation handle (707); The docking arm (704) is provided with an arm guide groove (706) extending along its length direction; A connecting shaft (703) is slidably fitted inside the pressure arm guide groove (706), and the connecting shaft (703) is rotatably connected to the side wall of the movable docking frame (7). When the docking operation handle (707) is pressed down, driving the docking pressure arm (704) to rotate downward around the pressure arm pivot (705), the connecting pivot (703) slides along the pressure arm guide groove (706) and drives the movable docking frame (7) to slide downward synchronously through the connecting pivot (703); When the docking operation handle (707) is lifted, driving the docking pressure arm (704) to rotate upward around the pressure arm pivot (705), the connecting pivot (703) drives the movable docking frame (7) to slide upward synchronously.

5. The prefabricated substation based on functional module reconfiguration according to claim 2, characterized in that, An insulating spacer (403) is provided between the busbar frame compartment (4) and the standard installation position (5), and the insulating spacer (403) is provided with a mating clearance opening (404); The docking clearance opening (404) corresponds to the position of the unit docking block (803) and the shape matches it; A spacer guard plate (405) is fitted and slidably disposed at the docking clearance opening (404); The front side of the partition protective plate (405) is provided with a driving inclined surface (406), which cooperates with the unit docking block (803); When the unit functional module (8) is slidably installed in place, the unit docking block (803) contacts and acts on the driving inclined surface (406), pushing the spacer protection plate (405) to slide, thereby simultaneously opening the docking clearance opening (404), so that the unit docking block (803) can pass through the docking clearance opening (404) and enter the busbar frame compartment (4). When the unit functional module (8) slides unloads, the spacer guard plate (405) slides back to its original position under the traction of the guard spring (407) set in the middle, so as to close the docking clearance opening (404).

6. The prefabricated substation based on functional module reconfiguration according to claim 2, characterized in that, The guide loading and unloading structure includes a support guide rail (501) horizontally disposed at the bottom of the standard mounting position (5), and a support guide groove (802) disposed at the bottom of the unit mounting frame (801); The unit mounting bracket (801) is installed and disassembled through a horizontal sliding fit between the support guide groove (802) and the support guide rail (501); The support guide rail (501) is provided with a positioning locking groove (502); A locking guide sleeve (9) is vertically provided at the support guide groove (802) of the unit mounting frame (801), and a positioning locking pin (901) is slidably fitted inside the locking guide sleeve (9); The positioning locking pin (901) cooperates with the positioning locking groove (502). When the unit mounting bracket (801) slides to the installation position, the positioning locking pin (901) can fall down and be locked into the positioning locking groove (502) to achieve locking.

7. The prefabricated substation based on functional module reconfiguration according to claim 6, characterized in that, The locking guide sleeve (9) is provided with an interlocking guide groove (902), and an interlocking adjusting rod (903) is slidably fitted inside the interlocking guide groove (902); The outer side of the movable docking frame (7) is connected to an interlocking top pressure block (905); The interlocking adjusting rod (903) and the interlocking top pressing block (905) are positioned correspondingly and cooperate with each other; When the movable docking frame (7) slides downward to make an electrical connection, the interlocking top pressure block (905) pushes the interlocking adjusting rod (903) to slide along the interlocking guide groove (902) to directly above the positioning locking pin (901), thereby preventing the positioning locking pin (901) from sliding upward to unlock; When the movable docking frame (7) slides upward to release the electrical connection, the interlocking adjusting rod (903) slides in the opposite direction under the action of the unlocking spring (904) set in its middle, and moves away from directly above the positioning locking pin (901). At this time, the positioning locking pin (901) can slide upward to unlock.

8. The prefabricated substation based on functional module reconfiguration according to claim 5, characterized in that, The front of the maintenance opening (101) is provided with a protective sealing plate (2); The bottom of the protective enclosure plate (2) is rotatably connected to the bottom edge of the maintenance opening (101) via a support pivot (201); The bottom of the maintenance opening (101) is also provided with a limiting support block (102). When the protective enclosure plate (2) is rotated outward around the support shaft (201) to a horizontal state, it is supported and limited by the limiting support block (102). The inner side of the protective enclosure plate (2) is provided with an extension guide rail (204); The extension guide rail (204) is horizontally slidably connected to the protective enclosure plate (2) via the support slider (205), so that the extension guide rail (204) can slide inward or outward relative to the protective enclosure plate (2); When the protective enclosure plate (2) is flipped to a horizontal state, the extension guide rail (204) can slide inward, so that its inner end is aligned with the outer end of the support guide rail (501), thereby forming a continuous guide rail channel; At this time, the movable docking frame (7) can slide and transfer between the assembled extended guide rail (204) and the support guide rail (501).

9. The prefabricated substation based on functional module reconfiguration according to claim 8, characterized in that, The outer side of the protective enclosure plate (2) is provided with a folding storage groove (3); The folding storage slot (3) is provided with a folding support leg (305). The top end of the folding support leg (305) is rotatably connected to a guide support block (302) through a folding pivot (306), and the bottom end is provided with a support foot (307). The front end of the folding storage slot (3) is provided with a guide support slot (301), and the guide support block (302) is fitted and slidably disposed in the guide support slot (301); The inner side of the guide support groove (301) is provided with a limiting fitting groove (303); When the protective enclosure plate (2) is flipped to a horizontal state and the folding support leg (305) is flipped to a vertical support state around the folding pivot (306), the folding support leg (305) pushes the guide support block (302) to slide along the guide support groove (301) through the ground support reaction force obtained by the support foot (307) until the top part of the folding support leg (305) is embedded in the limiting fitting groove (303), thereby realizing the rotation locking of the folding support leg (305).

10. The prefabricated substation based on functional module reconfiguration according to claim 9, characterized in that, A horizontal return spring (206) is provided in the middle of the support slider (205); The bottom side of the support slider (205) has a pressing slope (207); The top of the folding support leg (305) is formed with a corresponding linkage inclined surface (308); When the folding support leg (305) unfolds to a vertical state and its top end is inserted into the limiting groove (303) under the drive of the support reaction force, the linkage inclined surface (308) cooperates with the top pressing inclined surface (207) to push the support slider (205) to slide inward against the elastic force of the horizontal return spring (206); The inner sliding of the support slider (205) synchronously drives the extension guide rail (204) to move inward until the inner end of the extension guide rail (204) is aligned with the outer end of the support guide rail (501).

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