Box-type substation convenient to maintain

By introducing slide rail seats and supporting slider structures into the prefabricated substation, combined with line limit mechanisms and protective mesh panels, the maintenance problem in confined spaces is solved, enabling rapid positioning of electrical components and convenient replacement of dust filter components, thereby improving maintenance efficiency and safety.

CN224153794UActive Publication Date: 2026-04-21HANDAN WEINENG ELECTRICAL EQUIPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANDAN WEINENG ELECTRICAL EQUIPMENT CO LTD
Filing Date
2025-05-20
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing small and medium-sized prefabricated substations are difficult to maintain in confined spaces. Electrical components are difficult to locate, and dust filter components are not easy to disassemble and replace quickly, which affects maintenance efficiency and quality.

Method used

An insulated enclosure structure including a slide rail and a supporting slider was designed, allowing electrical components to be pulled out as a whole. It is equipped with a line limit mechanism and a protective mesh plate to achieve rapid positioning and cleaning. Combined with a heat dissipation negative pressure fan and an observation glass window, it improves maintenance efficiency and safety.

Benefits of technology

It provides ample operating space, facilitating the location and repair of faulty components, reducing wiring tangles, simplifying the replacement of dust filter components, improving maintenance efficiency and reducing risks, and ensuring the safety and heat dissipation of electrical components.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a box-type substation convenient to maintain, which relates to the technical field of box-type substations and comprises an insulation box body, a heat dissipation top cover is fixedly connected to the top of the insulation box body, an isolation base is fixedly connected to the bottom of the insulation box body, and electrical chambers are arranged at the two ends of the insulation box body. Sliding rail seats are fixedly connected to the bottoms in the cavities of the electrical chambers at the two ends, and supporting sliding blocks are slidably connected into the cavities of the sliding rail seats at the two ends. According to the insulating box body provided by the utility model, on the basis that electrical elements installed inside are integrally moved out to facilitate maintenance, the dust filtering assembly is rapidly separated to facilitate cleaning and replacement, so that the problems that the existing small and medium-sized box-type transformer substation is inconvenient to maintain in a narrow space; and dust filtering assemblies at the air inlet and the air outlet are inconvenient to quickly separate and take out for cleaning and replacing.
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Description

Technical Field

[0001] This utility model relates to the field of prefabricated substation technology, specifically to a prefabricated substation that is easy to maintain. Background Technology

[0002] A prefabricated substation, also known as a prefabricated transformer substation, is a factory-prefabricated, compact indoor or outdoor power distribution device arranged according to a certain wiring scheme. It organically combines the functions of transformer step-down and low-voltage power distribution, and installs them in a moisture-proof, rust-proof, dust-proof, rodent-proof, fire-proof, theft-proof, heat-insulated, fully enclosed, and movable steel structure box.

[0003] To meet the need for compact space, existing small and medium-sized prefabricated substations often densely pack electrical components into small enclosures, severely limiting the operating space for maintenance personnel. This makes it difficult to conduct comprehensive inspections of electrical components during maintenance, locating faulty components is challenging, and the operation is easily affected by interference from surrounding components. Conventional maintenance tools cannot be effectively used, and there is a risk of damaging other components due to improper operation, greatly reducing maintenance efficiency and quality. Furthermore, the dust filter components at the air inlets and outlets of prefabricated substations use complex installation methods and lack quick-disassembly structures, resulting in cumbersome cleaning and replacement processes that consume a lot of maintenance time and labor costs, leading to extended maintenance cycles and affecting the ventilation and heat dissipation effects of the substation. Utility Model Content

[0004] In view of the problems existing in the current easy-to-maintain box-type substation, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a prefabricated substation that is easy to maintain, solving the problems that existing small and medium-sized prefabricated substations are not convenient to maintain in a confined space, and that the dust filter components at the air inlet and outlet are not easy to quickly separate and remove for cleaning and replacement.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A prefabricated substation that is easy to maintain includes an insulating enclosure. A heat dissipation cover is fixedly connected to the top of the insulating enclosure, and an isolation base is fixedly connected to the bottom of the insulating enclosure. Electrical compartments are provided at both ends of the insulating enclosure. Slide rail seats are fixedly connected to the bottom of the cavities of the electrical compartments at both ends, and support sliders are slidably connected to the cavities of the slide rail seats at both ends.

[0008] The top of the supporting slider passes through the slide rail seat and is fixedly connected to an insulating support plate. Small insulating frames and large L-shaped insulating frames are fixedly connected to both ends of the insulating support plate, respectively. Heat dissipation mounting plates are fixedly connected to both the small insulating frames and the large L-shaped insulating frames. Each small insulating frame has a line limiting mechanism on its side wall. A locking mechanism is provided between the slide rail seat and the supporting slider. A heat dissipation negative pressure fan assembly is fixedly connected to one end of the cavity of the heat dissipation top cover through an opening. An air outlet protective mesh plate is snapped into the top opening of the cavity of the insulating box. Sealed boxes are rotatably connected to the side walls of both ends of the box through hinges. Observation glass windows are fixedly connected to the side walls of the sealed boxes at both ends through openings. Air inlet protective mesh plates are slidably connected to the side walls of the sealed boxes at both ends through openings.

[0009] Preferably, the line limiting mechanism includes a connecting plate, a line slot, a sliding opening, and a sliding limiting baffle. Each small insulating frame has a connecting plate fixedly connected to its side wall. The surface of the connecting plate has multiple line slots, and the side wall of the connecting plate has a sliding opening and is slidably connected to a sliding limiting baffle.

[0010] Preferably, the locking mechanism includes a limiting rod, a spring, a socket, and an insulating handle. The limiting rod is slidably connected to one end of the side wall of the slide rail seat. The limiting rod is sleeved with a spring. The side wall of the supporting slider has sockets at both ends. One end of the limiting rod is inserted into one of the sockets, and the other end of the limiting rod is fixedly connected to an insulating handle.

[0011] Preferably, both the air outlet protective mesh and the air inlet protective mesh are frames, and a dust filter is fixedly connected between their inner sidewalls. A waterproof and breathable membrane is fixedly connected to the inner sidewall of the dust filter.

[0012] Furthermore, lighting lamps are fixedly connected to both ends of the top of the cavity of the electrical chambers at both ends.

[0013] Preferably, the heat dissipation top cover has multiple heat dissipation enhancement holes on both ends of its sidewalls.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] 1. This utility model utilizes a slide rail seat and a support slider installed in the electrical room to allow the insulating support plate and its insulating frame, heat dissipation mounting plate and electrical components to be pulled out as a whole. This overcomes the limitations of narrow spaces, provides ample operating space for maintenance personnel, facilitates quick location of faulty components, and enables comprehensive inspection, repair and replacement, greatly improving maintenance efficiency. At the same time, it avoids the risk of limited tool movement and damage to other components when operating in narrow spaces, and reduces the difficulty of maintenance.

[0016] 2. This utility model utilizes a line limiting mechanism consisting of a connecting plate, a line slot, a sliding opening, and a sliding limit baffle to orderly fix and guide electrical lines. The line slot organizes and connects the lines, and the sliding limit baffle limits the lines, making the line layout neat and tidy. This facilitates maintenance personnel to quickly identify and distinguish the line direction, avoids line tangling, reduces maintenance errors caused by line confusion, and further improves maintenance efficiency.

[0017] 3. This utility model utilizes protective mesh panels for the air outlet and air inlet, and employs a frame structure with dust filters and waterproof and breathable membranes on the inner walls. This achieves both dust filtration, preventing dust from entering the chamber and affecting the performance of electrical components, and prevention of rainwater and moisture from entering the chamber, protecting the internal electrical components. The air outlet and air inlet protective mesh panels are installed in a sliding manner, facilitating quick disassembly and installation, easy cleaning and replacement, and ensuring long-term stable protection. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a cross-sectional view of the front part of the present invention;

[0021] Figure 3 This is a front sectional view of the present invention;

[0022] Figure 4 This is a three-dimensional schematic diagram of the line limiting mechanism of this utility model;

[0023] Figure 5 This is a top sectional view of the slide rail base of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Insulated enclosure; 2. Heat dissipation top cover; 3. Isolation base; 4. Electrical compartment; 5. Slide rail seat; 6. Support slider; 7. Insulated support plate; 8. Small insulating frame; 9. Large L-shaped insulating frame; 10. Heat dissipation mounting plate; 11. Heat dissipation negative pressure fan assembly; 12. Air outlet protective mesh plate; 13. Sealed door; 14. Observation glass window; 15. Air inlet protective mesh plate; 16. Connecting plate; 17. Wiring slot; 18. Sliding port; 19. Sliding limit baffle; 20. Limiting rod; 21. Spring; 22. Socket; 23. Insulated handle; 24. Dustproof filter; 25. Waterproof and breathable membrane; 26. Lighting lamp; 27. Heat dissipation reinforcement hole. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0027] This utility model discloses a prefabricated substation that is easy to maintain.

[0028] This utility model provides, for example Figure 1-5 The prefabricated substation shown includes an insulating box 1, a heat dissipation top cover 2 fixedly connected to the top of the insulating box 1, an isolation base 3 fixedly connected to the bottom of the insulating box 1, an electrical chamber 4 opened at both ends of the insulating box 1, a slide rail seat 5 fixedly connected to the bottom of the cavity of the electrical chamber 4 at both ends, and a support slider 6 slidably connected to the cavity of the slide rail seat 5 at both ends.

[0029] The top of the supporting slider 6 passes through the slide rail seat 5 and is fixedly connected to an insulating support plate 7. Small insulating frames 8 and large L-shaped insulating frames 9 are fixedly connected to both ends of the insulating support plate 7, respectively. Heat dissipation mounting plates 10 are fixedly connected to both the small insulating frames 8 and the large L-shaped insulating frames 9. Each small insulating frame 8 has a line limiting mechanism on its side wall. A locking mechanism is provided between the slide rail seat 5 and the supporting slider 6. A heat dissipation negative pressure fan assembly 11 is fixedly connected to one end of the cavity side wall of the heat dissipation top cover 2 through an opening. An air outlet protective mesh plate 12 is snapped into the top opening inside the cavity of the insulating housing 1. The two end side walls of the housing 1 are connected by... The sealed enclosure door 13 is rotatably connected to both ends. Observation windows 14 are fixedly connected to the side walls of the sealed enclosure door 13 through openings. Air inlet protective mesh plates 15 are slidably connected to the side walls of the sealed enclosure door 13 through openings. Using the slide rail seat 5 and support slider 6 set in the electrical compartments 4 at both ends, the insulating support plate 7 can slide along the slide rail seat 5. When maintenance of electrical components is required, the small insulating frame 8 and the large L-shaped insulating frame 9 fixed on the insulating support plate 7, along with the heat dissipation mounting plate 10 and electrical components, can be pulled out together, overcoming the limitations of the narrow space and providing sufficient operating space for maintenance personnel, facilitating quick positioning. The faulty components are positioned for easy comprehensive inspection, repair, and replacement, greatly improving maintenance efficiency. This also avoids the problems of limited tool movement and potential damage to other components when operating in confined spaces, reducing maintenance risks. The wiring limit mechanisms on the eight side walls of each small insulating frame can orderly fix and guide electrical wiring, making the wiring layout more organized. During maintenance, maintenance personnel can quickly identify and distinguish different wiring routes, avoiding wiring tangling and further improving maintenance efficiency. This reduces maintenance errors caused by messy wiring. The air outlet protective mesh 12 and air inlet protective mesh 15 are installed using a sliding installation method. Compared to traditional complex installation structures, this method allows for quick disassembly and installation without the need for tools. When it is necessary to clean the dust at the air inlet, simply pull out the air inlet protective mesh plate 15 along the opening for cleaning or replacement. The heat dissipation negative pressure fan assembly 11 is used to draw out the heat generated inside the chamber 1 through negative pressure. The observation glass window 14 facilitates daily observation and inspection of the interior of the chamber 1, thus solving the problems of existing small and medium-sized box-type substations being inconvenient to maintain in confined spaces, and the dust filter components at the air inlet and outlet being difficult to quickly separate and remove for cleaning and replacement.

[0030] To avoid the wires becoming tangled and affecting maintenance work, such as Figure 2-4As shown, the line limiting mechanism includes a connecting plate 16, line slots 17, sliding openings 18, and sliding limiting baffles 19. Each small insulating frame 8 has a connecting plate 16 fixedly connected to its side wall. The surface of the connecting plate 16 has multiple line slots 17, and the side wall of the connecting plate 16 has a sliding opening 18, which is slidably connected to the sliding limiting baffles 19. By using the line limiting mechanism composed of the connecting plate 16, line slots 17, sliding openings 18, and sliding limiting baffles 19, connecting lines can be sequentially placed through the multiple line slots 17 to organize them. The sliding limiting baffles 19 in the sliding openings 18 can be slid closed to limit and fix the connecting lines in the line slots 17, preventing the lines from getting tangled and affecting maintenance work.

[0031] In order to quickly move and limit the movement of the support slider 6, such as Figure 2 , 3 As shown in Figure 5, the locking mechanism includes a limiting rod 20, a spring 21, a socket 22, and an insulating handle 23. The limiting rod 20 is slidably connected to one end of the side wall of the slide rail seat 5. The spring 21 is sleeved on the rod wall of the limiting rod 20. The side wall of the support slider 6 has sockets 22 at both ends. One end of the limiting rod 20 is inserted into one of the sockets 22, and the other end of the limiting rod 20 is fixedly connected to the insulating handle 23. By using the locking mechanism composed of the limiting rod 20, spring 21, socket 22, and insulating handle 23, the spring 21 presses against the limiting rod 20 and inserts it into the corresponding socket 22, thereby limiting the movement of the support slider 6. This prevents the support slider 6 from moving the electrical components installed on the top during use and maintenance. The insulating handle 23 also increases operational safety.

[0032] To achieve dust filtration and prevent rainwater and moisture from entering the chamber 1, such as Figure 1-3 As shown, both the air outlet protective mesh plate 12 and the air inlet protective mesh plate 15 are frames, and a dust filter 24 is fixedly connected between their inner side walls. A waterproof and breathable membrane 25 is fixedly connected to the inner side wall of the dust filter 24. By using the air outlet protective mesh plate 12 and the air inlet protective mesh plate 15, which are frame-shaped and have a dust filter 24 and a waterproof and breathable membrane 25 fixedly connected between their inner side walls, dust filtration and prevention of rainwater and moisture in the air from entering the chamber 1 can be achieved.

[0033] To facilitate observation of the electrical components inside compartment 1 under illumination, such as Figure 2 and 3 As shown, lighting lamps 26 are fixedly connected to the top of the cavity of the electrical chamber 4 at both ends. The lighting lamps 26 facilitate the observation of the electrical components inside the cavity of the chamber 1 under illumination.

[0034] To enhance heat dissipation, such as Figure 1-3As shown, multiple heat dissipation enhancement holes 27 are provided on both sides of the heat dissipation top cover 2, thereby enhancing the heat dissipation effect.

[0035] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A prefabricated substation that is easy to maintain, comprising an insulated enclosure (1), characterized in that, The top of the insulating box (1) is fixedly connected to a heat dissipation top cover (2), the bottom of the insulating box (1) is fixedly connected to an isolation base (3), and electrical chambers (4) are opened at both ends of the insulating box (1). Slide rail seats (5) are fixedly connected to the bottom of the cavity of the electrical chambers (4) at both ends, and support sliders (6) are slidably connected to the cavity of the slide rail seats (5) at both ends. The top of the support slider (6) passes through the slide rail seat (5) and is fixedly connected to an insulating support plate (7). Small insulating frames (8) and large L-shaped insulating frames (9) are fixedly connected to both ends of the insulating support plate (7). Heat dissipation mounting plates (10) are fixedly connected to both the small insulating frames (8) and the large L-shaped insulating frames (9). Each small insulating frame (8) has a line limiting mechanism on its side wall. A locking mechanism is provided between the slide rail seat (5) and the support slider (6). A heat dissipation negative pressure fan assembly (11) is fixedly connected to one end of the cavity of the heat dissipation top cover (2) through an opening. An air outlet protective mesh plate (12) is snapped into the top of the cavity of the insulating box (1). Sealed box doors (13) are rotatably connected to both ends of the box (1) through hinges. Observation glass windows (14) are fixedly connected to the side walls of the sealed box doors (13) at both ends through openings. Air inlet protective mesh plates (15) are slidably connected to the side walls of the sealed box doors (13) at both ends through openings.

2. A box-type substation convenient for maintenance according to claim 1, characterized in that, The line limiting mechanism includes a connecting plate (16), a line slot (17), a sliding opening (18), and a sliding limiting baffle (19). Each of the small insulating frames (8) has a connecting plate (16) fixedly connected to its side wall. The surface of the connecting plate (16) is provided with multiple line slots (17). The side wall of the connecting plate (16) is provided with a sliding opening (18) and is slidably connected with a sliding limiting baffle (19).

3. A maintenance-friendly box-type substation according to claim 1, characterized in that The locking mechanism includes a limiting rod (20), a spring (21), a socket (22), and an insulating handle (23). The limiting rod (20) is slidably connected to one end of the side wall of the slide rail seat (5). The spring (21) is sleeved on the rod wall of the limiting rod (20). The two ends of the side wall of the support slider (6) are provided with sockets (22). One end of the limiting rod (20) is inserted into one of the sockets (22), and the other end of the limiting rod (20) is fixedly connected to an insulating handle (23).

4. A maintenance-friendly box-type substation according to claim 1, characterized in that Both the air outlet protective mesh plate (12) and the air inlet protective mesh plate (15) are frames, and a dust filter (24) is fixedly connected between the inner side walls. A waterproof and breathable membrane (25) is fixedly connected to the inner side wall of the dust filter (24).

5. A maintenance-friendly box-type substation according to claim 1, characterized in that Lighting lamps (26) are fixedly connected to both ends of the top of the cavity of the electrical chamber (4) at both ends.

6. A maintenance-friendly box-type substation according to claim 1, characterized in that Multiple heat dissipation enhancement holes (27) are provided on both ends of the heat dissipation top cover (2).