Full-spliced outdoor ring main unit shell
Patent Information
- Application Number
- CN202521918550.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-08
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-09-08
AI Technical Summary
[0004]为了弥补以上不足，本实用新型提供了全拼接式户外环网柜外壳，旨在改善现有技术中通过焊接连接外壳部件无法拆卸和返工，使得装置维修困难的问题
1、 本实用新型中，装置进行组装时，先通过L形连接柱与连接槽的滑动连接固定底板和框架，再将固定杆斜向贯穿连接柱，并配合限位杆对底板和框架的连接进行辅助固定，最后通过燕尾榫与燕尾槽的嵌合，以及固定卡扣的侧向卡合限制框架和顶板的相对位移，使得装置便于安装与维修，又兼顾了密封防护性与维护的便捷性，使装置能够适应户外复杂环境。
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Figure CN224790195U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ring main unit technology, and in particular to the shell of a fully modular outdoor ring main unit. Background Technology
[0002] Ring main units (RMS) are key equipment in power installations that ensure the reliability and flexibility of power supply. They are used in urban power distribution networks and industrial parks, enabling ring network power supply and terminal power supply for power lines. Due to their advantages of small size, relatively simple structure, and easy operation, RMS units are widely used. When RMS units need to be installed outdoors, they require the protection of a high-performance, fully modular outdoor RMS unit casing. The fully modular outdoor ring main unit shell is designed specifically for the protection of outdoor ring main units. It consists of a base frame, side panels, and a top cover. The components are connected by a detachable mechanism, eliminating the traditional welding method, greatly simplifying the assembly process, significantly saving labor costs, and providing a solid protective guarantee for the internal ring main unit to withstand complex outdoor environmental factors.
[0003] Although the fully modular outdoor ring main unit's outer shell can effectively withstand complex outdoor environments, there are potential hazards in the gaps between the components. Since the outer shell is assembled from multiple parts, the joints need to be connected using bolts and sealant. When exposed to the outdoor environment for a long time, the sealant ages and cracks due to temperature changes and ultraviolet radiation, allowing rainwater and dust to seep into the cabinet, affecting the insulation performance and service life of the electrical equipment. The existing solution is to connect the outer shell components using ultrasonic welding or friction welding techniques to achieve a sealed and waterproof seal. However, the welded outer shell cannot be disassembled or reworked, making the device difficult to maintain. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a fully modular outdoor ring main unit shell, which aims to improve the problem that the existing technology, which connects shell components by welding, cannot be disassembled and reworked, making the device difficult to maintain.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a fully spliced outdoor ring network cabinet shell, including a bottom plate, a frame and a top plate, wherein the outer wall of the frame is provided with a splicing mechanism, the top of the bottom plate is provided with a dehumidification mechanism, the inner wall of the frame is rotatably connected with multiple opening and closing doors, the outer wall of the frame is provided with a positioning mechanism, and the outer wall of the frame is provided with a reinforcing mechanism. The splicing mechanism includes multiple L-shaped connecting columns, the bottoms of which are fixedly connected to the top of the base plate. The bottom of the frame has multiple L-shaped connecting grooves, and the outer wall of the frame has multiple fixing grooves. The inner walls of the fixing grooves are slidably connected to fixing rods. The top left and right sides of the frame are fixedly connected to dovetail tenons. The bottom left and right sides of the top plate have dovetail grooves. The outer left and right sides of the top plate are slidably connected to two fixing buckles. The outer left and right sides of the frame and the top plate are each provided with two slots. The outer wall of the frame is provided with a limit component.
[0006] As a further description of the above technical solution: The dehumidification mechanism includes multiple expanding rubber strips, the outer walls of which are fixedly connected to the top of the outer wall of the frame. A moisture-absorbing strip is fixedly connected to the top of the inner wall of the frame, and multiple moisture-wicking cotton bundles are fixedly connected to the bottom of the moisture-absorbing strip. Two water collection boxes are fixedly connected to the left and right sides of the inner wall of the frame, and moisture storage blocks are fixedly connected to the inner walls of the multiple water collection boxes. Exhaust holes are opened at the front ends of the left and right sides of the frame, and an air pressure balancing component is installed inside the frame.
[0007] As a further description of the above technical solution: The positioning mechanism includes multiple positioning steel balls, the outer walls of which are fixedly connected to the outer wall of the frame, and multiple positioning holes are provided on adjacent sides of the bottom plate and the top plate.
[0008] As a further description of the above technical solution: The reinforcing mechanism includes multiple corner protectors, the outer walls of which are fixedly connected to the top of the outer wall of the frame, and strong magnets are fixedly connected to adjacent sides of the multiple corner protectors.
[0009] As a further description of the above technical solution: The limiting component includes multiple limiting rods, the outer walls of which are slidably connected to the bottom of the outer wall of the frame. The bottom of the outer wall of the frame is provided with multiple limiting grooves, and the outer walls of the multiple fixing rods are provided with limiting holes.
[0010] As a further description of the above technical solution: The pressure balancing assembly includes two one-way exhaust valves, the outer walls of which are fixedly connected to the inner walls of two exhaust holes, and the inner walls of which are fixedly connected to protective nets.
[0011] As a further description of the above technical solution: The outer wall of the frame is fixedly connected with multiple pins, and the outer walls of the multiple opening and closing doors are fixedly connected with two rotating shafts.
[0012] As a further description of the above technical solution: The bottom of the base plate is fixedly connected to a shock-absorbing pad, and the bottom of the shock-absorbing pad is fixedly connected to multiple anti-slip strips.
[0013] This utility model has the following beneficial effects: 1. In this utility model, when assembling the device, the base plate and frame are first fixed by sliding connection of L-shaped connecting column and connecting groove. Then, the fixing rod is obliquely inserted through the connecting column and the limiting rod is used to assist in fixing the connection between the base plate and the frame. Finally, the relative displacement between the frame and the top plate is restricted by the dovetail tenon and dovetail groove and the lateral locking of the fixing buckle. This makes the device easy to install and maintain, while also taking into account the sealing protection and the convenience of maintenance, so that the device can adapt to complex outdoor environments.
[0014] 2. In this utility model, when the device is in use, the expansion strip expands when it comes into contact with water to block the external gap between the frame and the top plate. A small amount of water that seeps in is absorbed by the moisture-absorbing strip. The excess water absorbed by the moisture-absorbing strip is guided into the water collection box through the moisture-wicking cotton bundle. The moisture in the box is absorbed by the moisture storage block to prevent spillage. When there is a lot of moisture or the air pressure is too high, the moisture is discharged and the pressure is reduced by opening the one-way exhaust valve. This allows the device to prevent moisture without mechanical components, ensuring that the internal equipment is not affected by moisture and enabling the device to adapt to the outdoor humid environment. Attached Figure Description
[0015] Figure 1 This is a perspective view of the fully assembled outdoor ring main unit shell proposed in this utility model; Figure 2 This is a front view of the fully modular outdoor ring main unit shell proposed in this utility model; Figure 3 This is a split view of the fixing buckle of the fully spliced outdoor ring network cabinet shell proposed in this utility model; Figure 4 This is a structural diagram of the frame of the fully assembled outdoor ring main unit shell proposed in this utility model; Figure 5 This is a schematic diagram of the top plate of the fully assembled outdoor ring main unit shell proposed in this utility model; Figure 6 This is a schematic diagram of the structure of the base plate of the fully assembled outdoor ring main unit shell proposed in this utility model.
[0016] Legend: 1. Base plate; 2. Frame; 3. Top plate; 4. Assembly mechanism; 401. L-shaped connecting column; 402. L-shaped connecting groove; 403. Fixing groove; 404. Fixing rod; 405. Dovetail tenon; 406. Dovetail groove; 407. Fixing buckle; 408. Clip groove; 409. Limiting component; 4091. Limiting rod; 4092. Limiting groove; 4093. Limiting hole; 5. Dehumidification mechanism; 501. Expansion strip; 502. 503. Moisture-absorbing strip; 504. Moisture-wicking cotton harness; 505. Water collection box; 506. Moisture storage block; 507. Vent; 508. Air pressure balance assembly; 509. One-way exhaust valve; 5000. Protective net; 6. Positioning mechanism; 601. Positioning steel ball; 602. Positioning hole; 7. Reinforcing mechanism; 701. Corner protector; 702. Strong magnet; 8. Opening and closing door; 9. Rotating shaft; 10. Pin; 11. Shock-absorbing pad; 12. Anti-slip strip. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] Reference Figure 3 , Figure 5 and Figure 6 An embodiment of this utility model provides: a fully spliced outdoor ring network cabinet shell, including a base plate 1, a frame 2 and a top plate 3. The outer wall of the frame 2 is provided with a splicing mechanism 4, which is used to splice the base plate 1, the frame 2 and the top plate 3 into an outdoor ring network cabinet. The top of the base plate 1 is provided with a dehumidification mechanism 5, which is used to remove moisture from the inside of the device. The inner wall of the frame 2 is rotatably connected with multiple opening and closing doors 8, which facilitate maintenance. The outer wall of the frame 2 is provided with a positioning mechanism 6, which is used to position the base plate 1, the frame 2 and the top plate 3 during assembly. The outer wall of the frame 2 is provided with a reinforcing mechanism 7, which is used to enhance the stability of the connection between the top frame 2 and the top plate 3. The splicing mechanism 4 includes multiple L-shaped connecting columns 401, the bottoms of which are fixedly connected to the top of the base plate 1. The bottom of the frame 2 has multiple L-shaped connecting grooves 402. The L-shaped connecting columns 401 slide into the L-shaped connecting grooves 402, thereby positioning the connection between the base plate 1 and the frame 2. The outer wall of the frame 2 has multiple fixing grooves 403, the inner walls of which are slidably connected to fixing rods 404. By sliding the fixing rods 404 obliquely into the fixing grooves 403, they simultaneously pass through the L-shaped connecting columns 401, thus restricting the L-shaped connecting columns 401. At position 1, dovetail tenons 405 are fixedly connected to the top left and right sides of frame 2, and dovetail grooves 406 are opened on the bottom left and right sides of top plate 3. The dovetail tenons 405 and dovetail grooves 406 can be engaged and connected. Two fixing buckles 407 are slidably connected to the left and right sides of the outer wall of top plate 3. Two slots 408 are opened on the left and right sides of the outer walls of frame 2 and top plate 3. The fixing buckles 407 can be engaged with the slots 408, thereby limiting the relative position between frame 2 and top plate 3. A limiting component 409 is provided on the outer wall of frame 2. The limiting component 409 is used to limit the position of fixing rod 404. The limiting component 409 includes multiple limiting rods 4091. The outer walls of the multiple limiting rods 4091 are slidably connected to the bottom of the outer wall of the frame 2. Multiple limiting grooves 4092 are provided at the bottom of the outer wall of the frame 2. By sliding the limiting rods 4091 downward, they slide into the limiting holes 4093, thereby limiting the position of the fixing rods 404. The outer walls of the multiple fixing rods 404 are all provided with limiting holes 4093. Specifically, during assembly, the multiple L-shaped connecting posts 401 on the top of the base plate 1 are first aligned with the L-shaped connecting grooves 402 on the bottom of the frame 2. The base plate 1 and frame 2 are initially fixed by sliding along the connecting grooves. Then, the fixing rod 404 is pushed obliquely into the fixing groove 403 on the outer wall of the frame 2, passing through the L-shaped connecting posts 401 to lock the base plate 1 and frame 2. Next, the limiting rod 4091 is slid downwards along the limiting groove 4092 on the outer wall of the frame 2, allowing the limiting rod 4091 to accurately insert into the limiting hole 4093 on the outer wall of the fixing rod 404, thereby avoiding… The limit rod 4091 is displaced to prevent the connection from becoming loose. Then, the dovetail tenon 405 is aligned with the dovetail groove 406 and pushed vertically to complete the fixation of the frame 2 and the top plate 3. Finally, the fixing buckles 407 on the left and right sides of the outer wall of the top plate 3 are slid so that the fixing buckles 407 are engaged in the corresponding slots 408 of the frame 2 and the top plate 3, further restricting the relative displacement of the frame 2 and the top plate 3, and completing the overall splicing of the device. This allows the device to achieve a stable connection without welding, which avoids the aging and leakage of the sealant and retains the disassembly of the device, making maintenance convenient.
[0019] Reference Figure 1 , Figure 3 and Figure 4The dehumidification mechanism 5 includes multiple expanding rubber strips 501, which are used to block the outside of the connection between the frame 2 and the top plate 3. The outer walls of the multiple expanding rubber strips 501 are fixedly connected to the top of the outer wall of the frame 2. A moisture-absorbing strip 502 is fixedly connected to the top of the inner wall of the frame 2. The moisture-absorbing strip 502 is used to absorb water seeping in from the connection. Multiple moisture-wicking cotton bundles 503 are fixedly connected to the bottom of the moisture-absorbing strip 502. The moisture-wicking cotton bundles 503 can guide excess water to flow downwards. Two water collection boxes 504 are fixedly connected to both the left and right sides of the wall. The water collection boxes 504 are used to collect water flowing down from the moisture-wicking cotton bundle 503. Moisture storage blocks 505 are fixedly connected to the inner walls of multiple water collection boxes 504. The moisture storage blocks 505 can prevent water from spilling out of the water collection boxes 504. Vent holes 506 are opened at the front of both the left and right sides of the frame 2. The vent holes 506 are used to remove water vapor. An air pressure balancing component 507 is installed inside the frame 2. The air pressure balancing component 507 is used to balance the air pressure inside the device. The air pressure balancing assembly 507 includes two one-way exhaust valves 5071. The one-way exhaust valves 5071 are used to release the pressure inside the device to the outside, and can also release water vapor when the water vapor inside the device is too heavy. The outer walls of the two one-way exhaust valves 5071 are fixedly connected to the inner walls of the two exhaust holes 506. The inner walls of the two exhaust holes 506 are fixedly connected to the protective nets 5072. The protective nets 5072 are used to protect the one-way exhaust valves 5071 and the exhaust holes 506. Specifically, during operation, the expansion strip 501 at the connection between frame 2 and top plate 3 expands upon contact with water, thus preventing external moisture from seeping into the device. A small amount of water that seeps in is absorbed by the moisture-absorbing strip 502 on the top of the inner wall of frame 2. Excess moisture absorbed by the moisture-absorbing strip 502 is guided by the moisture-wicking cotton bundle 503 to the water collection boxes 504 on both sides of frame 2. The moisture storage block 505 can absorb the moisture in the box, preventing excessive moisture from spilling. When the water vapor or air pressure inside the device increases, the one-way exhaust valve 5071 automatically opens, releasing excess water vapor and pressure through the exhaust hole 506, while preventing external moisture from flowing back in. The protective net 5072 can block dust from entering, thus protecting the one-way exhaust valve 5071. During the use of the device, by regularly replacing the moisture-absorbing strip 502 and the moisture storage block 505, the dehumidification mechanism 5 is ensured to remain effective, thereby preventing moisture from affecting the internal equipment of the device.
[0020] Reference Figure 1 , Figure 2 and Figure 3The positioning mechanism 6 includes multiple positioning steel balls 601, the outer walls of which are fixedly connected to the outer wall of the frame 2. Multiple positioning holes 602 are provided on adjacent sides of the bottom plate 1 and the top plate 3. The positioning steel balls 601 are slidably connected to the positioning holes 602, guiding the installation of the three main components. The reinforcing mechanism 7 includes multiple corner protectors 701, which enhance the stability of the connection between the top frame 2 and the top plate 3. The outer walls of the multiple corner protectors 701 are fixedly connected to the top of the outer wall of the frame 2. A strong magnet 702 is fixedly connected to each adjacent side of multiple corner protectors 701. The strong magnet 702 fixes the corner protectors 701 to the iron frame 2 in the device. Multiple pins 10 are fixedly connected to the outer wall of the frame 2. Two rotating shafts 9 are fixedly connected to the outer wall of multiple opening and closing doors 8. The rotational connection between the pins 10 and the rotating shafts 9 facilitates the use of the opening and closing doors 8. A shock-absorbing pad 11 is fixedly connected to the bottom of the base plate 1. The shock-absorbing pad 11 is used for shock absorption. Multiple anti-slip strips 12 are fixedly connected to the bottom of the shock-absorbing pad 11. Specifically, during assembly, the positioning steel balls 601 on the upper and lower sides of the outer wall of the frame 2 are aligned with the positioning holes 602 of the bottom plate 1 and the top plate 3 and slid in, thereby guiding the bottom plate 1, frame 2 and top plate 3 to be precisely aligned, ensuring accurate positioning of the device during assembly. The corner protectors 701 at the top of the frame 2 are attracted to the iron frame 2 by strong magnets 702, enhancing the stability of the connection between the frame 2 and the top plate 3. The opening and closing door 8 is flexibly connected to the pivot 9 and the pin 10, enabling flexible opening and closing, facilitating the maintenance of the internal components of the device. The shock-absorbing pads 11 at the bottom of the bottom plate 1 can buffer external vibrations, while the anti-slip strips 12 can increase the friction with the ground and prevent the device from sliding, thus improving the stability and ease of use of the device.
[0021] Working principle: The sliding connection of L-shaped connecting column 401 and L-shaped connecting groove 402 forms the initial positioning of the base plate 1 and frame 2. The horizontal and vertical structure of the L-shaped structure constrains the relative displacement of the two. Then, the fixing rod 404 slides obliquely into the fixing groove 403 and passes through the connecting column. Then, the limiting rod 4091 is inserted into the limiting hole 4093 for auxiliary fixing, forming a triple fixation of the connection between the base plate 1 and frame 2. The device can be loosened during use and can be installed and disassembled easily. Then, the dovetail tenon 405 and dovetail groove 406 are fitted together to fix the frame 2 and the top plate 3. The structural characteristics of the dovetail tenon 405 can resist the separation force. Then, the lateral locking connection of the fixing buckle 407 and the slot 408 restricts the horizontal displacement between the frame 2 and the top plate 3. The whole device uses mechanical structure to replace bolts and sealant, which avoids the aging of the adhesive layer and retains the disassembly of the device, realizing the sealing protection and convenient maintenance of the ring main unit. Furthermore, during use, the device utilizes the water-expanding properties of the expansion strip 501 to block the gap between the frame 2 and the top plate 3 through volume change, actively preventing external moisture from seeping in. A small amount of seeping moisture is absorbed by the moisture-absorbing strip 502 on the top of the inner wall of the frame 2, and the material itself absorbs water to block the moisture. Excess moisture is guided to the water collection box 504 below through the moisture-wicking cotton bundle 503, and the moisture storage block 505 further absorbs the moisture in the box to prevent excessive water from spilling due to shaking. When water vapor accumulates inside the device, causing the air pressure to rise, the one-way exhaust valve 5071 is automatically opened to discharge excess water vapor and pressure through the exhaust port 506, and can also prevent external moisture from flowing back in. The protective net 5072 can prevent dust from entering through physical properties, thereby protecting the valve body. By regularly replacing the moisture-absorbing strip 502 and the moisture storage block 505, the device's water vapor adsorption capacity can be maintained, continuously preventing moisture from affecting the internal equipment.
[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A fully modular outdoor ring main unit shell, comprising a base plate (1), a frame (2), and a top plate (3), characterized in that: The outer wall of the frame (2) is provided with a splicing mechanism (4), the top of the base plate (1) is provided with a dehumidification mechanism (5), the inner wall of the frame (2) is rotatably connected with multiple opening and closing doors (8), the outer wall of the frame (2) is provided with a positioning mechanism (6), and the outer wall of the frame (2) is provided with a reinforcing mechanism (7). The splicing mechanism (4) includes multiple L-shaped connecting columns (401), the bottom of which is fixedly connected to the top of the base plate (1). The bottom of the frame (2) is provided with multiple L-shaped connecting grooves (402). The outer wall of the frame (2) is provided with multiple fixing grooves (403). The inner wall of each fixing groove (403) is slidably connected with a fixing rod (404). The top left and right sides of the frame (2) are fixedly connected with dovetail tenons (405). The bottom left and right sides of the top plate (3) are provided with dovetail grooves (406). The left and right sides of the outer wall of the top plate (3) are slidably connected with two fixing buckles (407). The left and right sides of the outer walls of the frame (2) and the top plate (3) are provided with two slots (408). The outer wall of the frame (2) is provided with a limit component (409).
2. The fully modular outdoor ring main unit shell according to claim 1, characterized in that: The dehumidification mechanism (5) includes multiple expansion strips (501), the outer walls of the multiple expansion strips (501) are fixedly connected to the top of the outer wall of the frame (2), the top of the inner wall of the frame (2) is fixedly connected to a moisture-absorbing strip (502), the bottom of the moisture-absorbing strip (502) is fixedly connected to multiple moisture-wicking cotton bundles (503), the left and right sides of the inner wall of the frame (2) are fixedly connected to two water collection boxes (504), the inner walls of the multiple water collection boxes (504) are fixedly connected to moisture storage blocks (505), the front ends of the left and right sides of the frame (2) are provided with exhaust holes (506), and the interior of the frame (2) is provided with an air pressure balance component (507).
3. The fully modular outdoor ring main unit shell according to claim 1, characterized in that: The positioning mechanism (6) includes multiple positioning steel balls (601), the outer walls of the multiple positioning steel balls (601) are fixedly connected to the outer wall of the frame (2), and multiple positioning holes (602) are opened on the adjacent side of the bottom plate (1) and the top plate (3).
4. The fully modular outdoor ring main unit shell according to claim 1, characterized in that: The reinforcing mechanism (7) includes multiple corner brackets (701), the outer walls of the multiple corner brackets (701) are fixedly connected to the top of the outer wall of the frame (2), and strong magnets (702) are fixedly connected to the adjacent side of the multiple corner brackets (701).
5. The fully modular outdoor ring main unit shell according to claim 1, characterized in that: The limiting component (409) includes multiple limiting rods (4091), the outer walls of the multiple limiting rods (4091) are slidably connected to the bottom of the outer wall of the frame (2), the bottom of the outer wall of the frame (2) is provided with multiple limiting grooves (4092), and the outer walls of the multiple fixing rods (404) are provided with limiting holes (4093).
6. The fully modular outdoor ring main unit shell according to claim 2, characterized in that: The pressure balancing assembly (507) includes two one-way exhaust valves (5071), the outer walls of the two one-way exhaust valves (5071) are fixedly connected to the inner walls of the two exhaust holes (506), and the inner walls of the two exhaust holes (506) are fixedly connected to protective nets (5072).
7. The fully modular outdoor ring main unit shell according to claim 1, characterized in that: The outer wall of the frame (2) is fixedly connected with multiple pins (10), and the outer walls of the multiple opening and closing doors (8) are fixedly connected with two rotating shafts (9).
8. The fully modular outdoor ring main unit shell according to claim 1, characterized in that: The bottom of the base plate (1) is fixedly connected to a shock-absorbing pad (11), and the bottom of the shock-absorbing pad (11) is fixedly connected to a plurality of anti-slip strips (12).