Intelligent protective ring main unit

Abstract

This invention belongs to the field of power ring main unit technology, specifically an intelligent protective ring main unit, including a ring main unit body and electrical mounting plates installed inside the ring main unit body. The ring main unit body is composed of a base, a flip frame, a cabinet door, and locking components. By adjusting the composition of the ring main unit body, and using a base, flip frame, cabinet door, and locking components to form the ring main unit body, this invention enables the ring main unit body to have two different opening methods, which facilitates handling different situations. In the second opening method, the flip frame not only fully exposes the electrical components to the outside, but also utilizes the docking of the base and the flip frame, and the extension rail and the support rail to form a larger operating platform. This allows for flexible adjustment of the spacing of the electrical mounting plates, further eliminating the impact of confined space during operation, and thus improving the convenience of operating the electrical components inside the ring main unit body.

Description

Technical Field

[0001] This invention belongs to the field of power ring network box technology, specifically an intelligent protection ring network box. Background Technology

[0002] Ring main units, as key equipment in power distribution networks, are widely used in urban power supply networks, industrial parks, and residential communities. They are used to centrally install electrical components such as high-voltage switches, fuses, and busbars to achieve power distribution and protection. With the advancement of smart grid construction, higher requirements are placed on the safety, maintainability, and heat dissipation performance of ring main units. However, existing ring main units still have the following shortcomings in practical use:

[0003] First, traditional ring main units typically employ a monolithic enclosure structure with limited door opening angles (generally less than 90°), resulting in cramped internal space and densely packed electrical components. When maintenance, replacement, or wiring work is required, repair personnel often have to operate with limited visibility and difficulty in reaching tools, leading to inconvenience and low efficiency. Especially in emergency situations such as fault repair, the confined space further exacerbates the difficulty of the work and increases the risk of misoperation.

[0004] Secondly, the electrical components inside the ring main unit generate a significant amount of heat during long-term operation. Traditional cooling methods often rely on cooling fans installed on the side walls or top of the unit to irritate the internal airflow and achieve cooling. However, due to the complex internal structure of the ring main unit, components such as electrical components, wire channels, and mounting plates create multiple obstructions to airflow. This makes it difficult for the airflow generated by the fans to cover the top, corners, and backs of electrical components—dead areas where heat cannot be effectively dissipated. Prolonged operation at high temperatures accelerates insulation aging, affecting equipment lifespan and power supply reliability.

[0005] Furthermore, existing ring main units struggle to balance dust prevention and heat dissipation. To ensure effective heat dissipation, air inlets are typically large, but external dust easily penetrates and accumulates on the surface of electrical components, reducing insulation performance. Adding filters, on the other hand, leads to easy clogging, requiring frequent manual cleaning and resulting in high maintenance costs.

[0006] Therefore, how to optimize the structural design of the ring main unit to provide sufficient operating space and improve heat dissipation while meeting protection requirements has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0007] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0008] The technical solution adopted by the present invention to solve its technical problem is: the intelligent protective ring network box of the present invention includes a ring network box body and an electrical installation plate installed in the ring network box body;

[0009] The ring network enclosure consists of a base, a tilting frame, cabinet doors, and locking components;

[0010] The base is a box-shaped structure with an open top, and the flip-up frames are symmetrically installed on the base;

[0011] The inner wall of the base is provided with a horizontally set movable groove. Each flipping frame is fixedly installed with a flipping rod, which extends into the movable groove. In the maintenance state, the flipping frame flips to the side wall of the base through the flipping rod and the movable groove.

[0012] All the flip-up frames are C-shaped frame structures, and cabinet doors are installed on the flip-up frames by hinges. The cabinet doors and the flip-up frames together form a box-type structure with an open bottom.

[0013] The cabinet door and the flip frame are detachably connected by a pin on the side away from the hinge. Two adjacent flip frames are equipped with a locking device, and in the initial state, the two flip frames are connected by the locking device.

[0014] It also includes an extension mechanism, which is installed inside the ring network box. The extension mechanism is used to increase the gap of the electrical mounting plates. The extension mechanism includes a support rail and an extension rail. The support rail is fixedly installed on the base, and the electrical mounting plates are installed on the support rail at equal intervals. The extension rail is fixedly installed inside the flipping frame. After the flipping frame is flipped to one side of the base, the extension rail is flush with the support rail, and the distance between the extension rail and the support rail is greater than the bottom width of the electrical mounting plate.

[0015] A buffer plate is fixedly installed on the side wall of the base. The buffer plate is made of elastic metal material and initially extends to the side wall of the flipping frame.

[0016] The base has a lifting groove on its side wall, and a lifting block is slidably installed in the lifting groove. A connecting spring is embedded in the lifting block, and the end of the connecting spring away from the lifting block extends and is fixedly installed on the buffer plate.

[0017] The locking component includes a connecting end, a locking end, and a limiting spring. The connecting end and the locking end are respectively installed on two flipping frames. The locking end is fixedly connected to the flipping frame, and the connecting end is rotatably connected to the flipping frame. The top of the locking end has a mating groove, and the connecting end extends into the mating groove. One end of the connecting end extending into the mating groove has an L-shaped design. A limiting spring is fixedly installed in the mating groove. After the connecting end is in the mating groove, the limiting spring is located on the translation path of the connecting end. When the two flipping frames are connected by the locking component, the two flipping frames are elastically connected by the locking component.

[0018] The two flip frames are close to each other and their shapes fit each other. In the initial state, the two flip frames are connected by being close to each other. The distance between the flip frames is greater than the maximum translational distance of the connection end in the joint groove. Elastic sealing plates are fixedly installed on the base and the splice of the two flip frames.

[0019] The ring network box is equipped with a swing cooling mechanism, which includes a drive motor and a cam. The drive motor is fixedly mounted on the base, and a cam is fixedly mounted on the output end of the drive motor. The cam extends to the flipping rod. When the flipping frame is connected by a locking component, the flipping rod is located on the rotation path of the cam. Permanent magnets are embedded in the electrical mounting plates, and the same magnetic poles of the permanent magnets on two adjacent electrical mounting plates are close to each other.

[0020] Both sides of the base are elastically mounted with sealing boxes via support springs. Filter screens are installed on the opposite sides of the flip frame. A reset spring is fixedly installed inside the sealing box. The filter screens extend into the sealing box and are connected to the reset springs.

[0021] Each of the sealed boxes has a scraper fixedly installed on the side furthest from each other. The scraper is used to scrape and remove dust from the reset filter screen.

[0022] An installation roller is rotatably mounted on the tilting frame, and a docking roller is slidably mounted inside the sealing box. The filter screen is ring-shaped and sleeved on the installation roller and the docking roller. A connecting ring is sleeved on the docking roller and fixedly connected to the return spring. A helical rack is installed on the inner wall of the sealing box through an elastic strip. Both ends of the docking roller are designed as gears. During the lifting and lowering process, the docking roller meshes with the helical rack in one direction for transmission.

[0023] The beneficial effects of this invention are as follows:

[0024] 1. The intelligent protective ring main unit of the present invention, by adjusting the composition of the ring main unit, adopts a base, a flip frame, a cabinet door and locking components to form the ring main unit, thereby enabling the ring main unit to have two different opening methods to facilitate different situations. In the second opening method, the flip frame not only fully exposes the electrical components to the outside, but also utilizes the docking of the base and the flip frame, and the extension rail and the support rail to form a larger operating platform, thereby flexibly adjusting the spacing of the electrical mounting plates, further eliminating the influence of confined space during operation, and thus making the operation of the electrical components inside the ring main unit more convenient.

[0025] 2. The intelligent protective ring main unit of this invention periodically changes the internal volume of the ring main unit by the reciprocating sliding of two flipping frames, thereby achieving forced exchange of internal and external airflow. It forcibly disrupts the airflow balance inside the ring main unit by using negative pressure, and discharges the heat accumulated in the four corner areas and between electrical components inside the ring main unit. This effectively breaks through the limitations of the internal spatial layout of the ring main unit and improves the heat dissipation effect. This heat exchange method based on mechanical deformation improves heat dissipation efficiency while achieving low power consumption. Attached Figure Description

[0026] The invention will now be further described with reference to the accompanying drawings.

[0027] Figure 1 This is a perspective view of the present invention;

[0028] Figure 2 It is a 3D view of a flipper after it has been flipped over;

[0029] Figure 3 It is a 3D view of the two flippers after they have been flipped.

[0030] Figure 4 This is a perspective view of the present invention in a deflection and heat dissipation state;

[0031] Figure 5 This is a 3D view of the base with the filter screen pulled out.

[0032] Figure 6 It is a 3D diagram showing the two flip-up frames disassembled;

[0033] Figure 7 It is a 3D view of the locking mechanism;

[0034] Figure 8 It is a 3D assembly diagram of the buffer plate, lifting block, and connecting spring;

[0035] Figure 9 This is a partial sectional view of the sealed box;

[0036] Figure 10 yes Figure 9 Enlarged view of point A in the middle.

[0037] In the diagram: 1. Electrical mounting plate; 2. Base; 3. Flip frame; 4. Moving slot; 5. Flip rod; 6. Cabinet door; 7. Pin; 8. Support rail; 9. Extension rail; 10. Buffer plate; 11. Lifting slot; 12. Lifting block; 13. Connecting spring; 14. Connecting end; 15. Locking end; 16. Engaging slot; 17. Limiting spring; 18. Drive motor; 19. Cam; 20. Supporting spring; 21. Sealing box; 22. Filter screen; 23. Return spring; 24. Scraper; 25. Mounting roller; 26. Connecting roller; 27. Connecting ring; 28. Elastic strip; 29. ​​Helical rack. Detailed Implementation

[0038] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0039] like Figures 1 to 10 As shown in the figure, an intelligent protective ring network box according to an embodiment of the present invention includes a ring network box body and an electrical mounting plate 1 installed inside the ring network box body. The electrical mounting plate 1 is a common perforated plate, mainly used for installing electrical components and arranging wires.

[0040] The ring network enclosure consists of a base 2, a tilting frame 3, a cabinet door 6, and locking components;

[0041] The base 2 is a box-shaped structure with an open top, and the flip frame 3 is symmetrically installed on the base 2;

[0042] The inner wall of the base 2 is provided with a horizontally arranged movable groove 4. Each of the flipping frames 3 is fixedly installed with a flipping rod 5. The flipping rod 5 extends into the movable groove 4. In the maintenance state, the flipping frame 3 is flipped to the side wall of the base 2 through the flipping rod 5 and the movable groove 4.

[0043] All the flip-up frames 3 are C-shaped frame structures. Each flip-up frame 3 is fitted with a cabinet door 6 by hinges. The cabinet door 6 and the flip-up frame 3 together form a box-type structure with an open bottom.

[0044] The cabinet door 6 and the flip frame 3 are detachably connected on the side away from the hinge via a pin 7. A locking component is installed on two adjacent flip frames 3. In the initial state, the two flip frames 3 are connected by the locking component.

[0045] It also includes an extension mechanism, which is installed inside the ring network box. The extension mechanism is used to increase the gap of the electrical mounting plate 1. The extension mechanism includes a support rail 8 and an extension rail 9. The support rail 8 is fixedly installed on the base 2. The electrical mounting plates 1 are installed on the support rail 8 at equal intervals. The extension rail 9 is fixedly installed inside the flipping frame 3. After the flipping frame 3 is flipped to one side of the base 2, the extension rail 9 is flush with the support rail 8, and the distance between the extension rail 9 and the support rail 8 is greater than the bottom width of the electrical mounting plate 1.

[0046] A buffer plate 10 is fixedly installed on the side wall of the base 2. The buffer plate 10 is made of elastic metal material. In the initial state, the buffer plate 10 extends to the side wall of the flipping frame 3. During the translation and flipping process, the flipping frame 3 will push the buffer plate 10 to tilt and deform. Therefore, under the elasticity of the buffer plate 10 itself, it will generate resistance to the translation and flipping operation of the flipping frame 3. During the reset process of the flipping frame 3, the buffer plate 10 will generate assistance under its own elasticity. Therefore, the presence of the buffer plate 10 can not only enhance the stability of the flipping frame 3 during translation and flipping when opening the ring network box, but also reduce the difficulty of the reset of the flipping frame 3 by utilizing the elasticity of the buffer plate 10 when closing the ring network box.

[0047] The base 2 has a lifting groove 11 on its side wall. A lifting block 12 is slidably installed in the lifting groove 11. A connecting spring 13 is embedded in the lifting block 12. The end of the connecting spring 13 away from the lifting block 12 extends and is fixedly installed on the buffer plate 10. The setting of the connecting spring 13 allows for the adjustment of the final elastic force when the buffer plate 10 is tilted or deformed by using different models of connecting spring 13, thereby facilitating the movement of the tilting frame 3. At the same time, the setting of the lifting groove 11 and the lifting block 12 also facilitates the adjustment of the position of the connecting spring 13, reducing the obstruction of the connecting spring 13 to the movement of the tilting frame 3.

[0048] When inspecting or maintaining the electrical components inside the ring main unit, in order to maximize the space and reduce the obstruction of the narrow space to the maintenance work, this invention changes the composition of the ring main unit and changes the shape of the ring main unit to achieve the purpose of completely exposing the electrical mounting plate 1 to the outside.

[0049] In this invention, under normal conditions, the locking mechanism is in a connected state, and the ring main unit is used to shield, protect, and isolate the electrical mounting plate 1 from the outside. When inspection or maintenance is required, the ring main unit has two different opening methods for maintenance personnel to choose from. The first opening method is suitable for use when the maintenance workload is small, the operation is simple, and the impact of narrow space is minimal. In this case, the operator can manually open the latch 7 on the cabinet door 6 and the flip frame 3. At this time, the two flip frames 3 are connected as a whole by the locking mechanism, and the opening of the latch 7 allows the cabinet door 6 to rotate around the flip frame 3 with the assistance of the hinge. By opening the cabinet door 6, a small-scale opening of the ring main unit can be achieved. It should be noted that, in order to enhance this state... For flexibility, the number of cabinet doors 6 can be flexibly set in this invention. For example, in one embodiment, the number of cabinet doors 6 is set to four, and they are all distributed on the larger side walls of the two flip frames 3. In other embodiments of this invention, the number of cabinet doors 6 on a single flip frame 3 can also be set to one or three. The second opening method is suitable for situations where the maintenance workload is large and the operation is greatly affected by narrow spaces. In the second state, the latches 7 between the cabinet doors 6 and the flip frames 3 are in the closed state, so that the cabinet doors 6 and the flip frames 3 are fixedly connected. At this time, the operator manually opens the locking mechanism, so that the two flip frames 3 change from being connected to being disconnected. At this time, the operator manually pushes the flip frames 3. Since the flip frames 3 are fixedly installed with flip rods 5, and the flip... The rotating rod 5 extends into the moving groove 4 opened on the inner wall of the base 2, so the tilting frame 3 slides horizontally on the base 2. During the sliding of the tilting frame 3, the buffer plate 10 extending to the side wall of the tilting frame 3 is tilted by force. When the rotating rod 5 slides to the end of the moving groove 4, the tilting frame 3 is mostly suspended in the air. At this time, under the action of gravity, the tilting frame 3 has a tendency to move downward. Since the moving groove only restricts the direction of movement of the rotating rod 5, that is, the rotating rod 5 can rotate in the moving groove, so the tilting frame 3 and the rotating rod 5 rotate around the center of the end of the moving groove 4. During the rotation, the buffer plate 10, which is always below the tilting frame 3, will tilt and deform more under the pressure of the tilting frame 3. 10 During the tilting and deformation process, the connecting spring 13 is pulled and, in conjunction with the pressure of the flipping frame 3, the connecting spring 13 is extended and the lifting block 12 slides down along the lifting groove 11. Finally, the flipping frame 3 completes the flipping operation under the obstruction of the side wall of the base 2. At this time, the top of the flipping frame 3 is flush with the top of the base 2, and the extension rail 9 inside the flipping frame 3 is flush with the support rail 8 inside the base 2. The operator can manually push the electrical mounting plate 1 to slide on the support rail 8 and the extension rail 9 to flexibly adjust the gap between multiple electrical mounting plates 1. It should be noted that in the second opening method, a single flipping frame 3 can be moved and flipped, or two flipping frames 3 can be moved and flipped at the same time. The specific operation depends on the needs of the maintenance work.

[0050] This invention expands the operating space inside the ring network enclosure by moving the flip-up frame 3, upgrading the traditional "probe-style" maintenance to "walk-in" operation. This effectively increases the operating space, unlike traditional solutions which are limited by the opening angle (usually <90°) and dense component layout, leading to insufficient operating space and obstructed views. This invention achieves panoramic visualization (e.g., through the deformation of the ring network enclosure) Figure 3 (In the unfolded state), it solves the problems of limited operating space and low maintenance efficiency of traditional ring network boxes.

[0051] It should be noted that the improvements made in this invention not only facilitate inspection and maintenance work, but also facilitate operations involving the internal electrical components of the ring main unit, such as internal assembly and disassembly.

[0052] In a preferred embodiment of the present invention, the locking component includes a connecting end 14, a locking end 15, and a limiting spring 17. The connecting end 14 and the locking end 15 are respectively installed on two flip frames 3. The locking end 15 is fixedly connected to the flip frame 3, and the connecting end 14 is rotatably connected to the flip frame 3. A connecting groove 16 is provided at the top of the locking end 15. The connecting end 14 extends into the connecting groove 16. One end of the connecting end 14 extending into the connecting groove 16 is designed in an L-shape. A limiting spring 17 is fixedly installed in the connecting groove 16. After the connecting end 14 is in the connecting groove 16, the limiting spring 17 is located on the translation path of the connecting end 14. When the two flip frames 3 are connected by the locking component, the two flip frames 3 are elastically connected by the locking component.

[0053] The two flipping frames 3 are close to each other and their shapes fit each other. In the initial state, the two flipping frames 3 are connected by being close to each other. The distance between the flipping frames 3 is greater than the maximum translational distance of the connecting end 14 in the mating groove 16. Elastic sealing plates are fixedly installed at the splicing points of the base 2 and the two flipping frames 3.

[0054] The ring network box is equipped with a tilting heat dissipation mechanism, which includes a drive motor 18 and a cam 19. The drive motor 18 is fixedly mounted on the base 2, and the output end of the drive motor 18 is fixedly mounted with the cam 19. The cam 19 extends to the flipping rod 5. When the flipping frame 3 is connected by a locking component, the flipping rod 5 is located on the rotation path of the cam 19. Permanent magnets are embedded in the electrical mounting plates 1, and the same magnetic poles of the permanent magnets on two adjacent electrical mounting plates 1 are close to each other.

[0055] Because the electrical components inside the ring main unit generate heat during daily use, and heat dissipation is difficult in a closed ring main unit, in this embodiment, the locking component consists of a connecting end 14, a locking end 15, and a limiting spring 17. After the two flipping frames 3 are assembled with the base 2, the two flipping frames 3 are pushed closer to each other from above the base 2. Due to the matching shapes of the two flipping frames 3, the two flipping frames 3 are sleeved together on the side closest to each other. That is, after the two flipping frames 3 are spliced ​​together, a portion of their length is inner and outer sleeved together. Therefore, even if the two flipping frames 3 move relative to each other, they can still be locked together. When the movement distance is less than the length of the two flipping frames 3, there will be no gap between the two flipping frames 3. Furthermore, the elastic sealing sheet placed on the side where the flipping frames 3 and base 2 are close to each other ensures the sealing performance of the ring mesh box after the flipping frames 3 and base 2 are joined. When heat dissipation is required, the oscillating heat dissipation mechanism inside the ring mesh box is activated. The drive motor 18 rotates under the control of a pre-set program, causing the cam 19 to rotate. During the rotation of the cam 19, the flipping rod 5 and the flipping frame 3 are moved. When horizontal sliding occurs between the flipping frame 3 and the base 2... At this time, the flip frame 3 and the base 2 are misaligned, which allows the bottom opening of the flip frame 3 to communicate with the outside. At the same time, the two flip frames 3 move away from each other, increasing the volume of the box-like structure with the bottom opening formed by the flip frame 3 and the cabinet door 6. Therefore, external air enters the ring mesh box through the bottom opening of the flip frame 3. Meanwhile, the moving away of the two flip frames 3 causes the locking end 15 and the connecting end 14 to move away from each other. The limiting spring 17 located between the connecting end 14 and the connecting groove 16 is gradually compressed. As the cam 19 continues to rotate, when the cam 19 gradually moves away from the flip rod 5, the limiting spring 17 is compressed. 7. Reset and push the two flip frames 3 to move closer to each other, thereby reducing the volume of the box-type structure with the bottom opening formed by the flip frames 3 and the cabinet door 6. Some of the air inside the ring mesh box is expelled. In the alternating motion of air extraction and exhaust, the heat inside the ring mesh box diffuses with the airflow, thereby achieving the effect of heat dissipation and cooling. At the same time, during the movement of the flip frames 3, the flip frames 3 will also push the outside air, thereby increasing the airflow speed around the flip frames 3. This not only improves the heat conduction and heat dissipation effect between the flip frames 3 and the surrounding air, but also slows down the rate of dust accumulation on the flip frames 3 and the cabinet door 6.

[0056] This invention utilizes a drive motor 18 and a cam 19 to cause periodic changes in the internal space of the ring network box through the relative movement of two flipping frames 3. This spatial change facilitates air exchange between the ring network box and the outside environment. Furthermore, permanent magnets are embedded in the electrical mounting plates 1. The like poles of the permanent magnets on adjacent electrical mounting plates 1 approach each other. Therefore, as the two flipping frames 3 move away from each other, the distance between the multiple electrical mounting plates 1 increases with the assistance of the permanent magnets. This improves the heat exchange efficiency between the electrical components and the air, ultimately enhancing the heat dissipation of the electrical components inside the ring network box.

[0057] This invention utilizes the reciprocating sliding of two flipping frames 3 to alter the internal volume of the ring mesh enclosure, forcing a forced exchange between the internal gas and external airflow. This rapidly expels hot air from the ring mesh enclosure. Compared to traditional cooling fans that dissipate heat by disturbing the airflow within the ring mesh enclosure, the airflow path is easily obstructed in the complex structure of the enclosure, making it difficult to cover dead areas such as the top and corners. This results in heat accumulation in the corners and behind electrical components. This invention constructs a directional airflow channel and a negative pressure adsorption environment within the ring mesh enclosure, achieving forced exchange between internal and external airflow. The negative pressure forcibly disrupts the airflow balance within the enclosure and draws out the hot air from the corners and between electrical components. This effectively overcomes the spatial layout limitations of the ring mesh enclosure, improves heat dissipation, and, based on mechanical deformation, enhances heat exchange efficiency while achieving low power consumption.

[0058] In a preferred embodiment of the present invention, sealing boxes 21 are elastically installed on both sides of the base 2 by support springs 20, and filter screens 22 are installed on the opposite sides of the flip frame 3. A reset spring 23 is fixedly installed inside the sealing box 21, and the filter screens 22 extend into the sealing box 21 and are connected to the reset spring 23.

[0059] Each of the sealed boxes 21 has a scraper 24 fixedly installed on a side away from each other. The scraper 24 is used to scrape and remove dust from the reset filter screen 22.

[0060] An installation roller 25 is rotatably mounted on the tilting frame 3, and a docking roller 26 is slidably mounted inside the sealing box 21. The filter screen 22 is annularly sleeved on the installation roller 25 and the docking roller 26. A connecting ring 27 is sleeved on the docking roller 26, and the connecting ring 27 is fixedly connected to the return spring 23. A helical rack 29 is installed on the inner wall of the sealing box 21 through an elastic strip 28. Both ends of the docking roller 26 are gear-shaped. During the lifting and lowering process, the docking roller 26 engages with the helical rack 29 in one direction for transmission.

[0061] When the oscillating heat dissipation mechanism is activated, the two tilting frames 3 move periodically. During this process, as the tilting frame 3 moves horizontally and gradually misaligns with the base 2, the mounting roller 25 pulls the filter screen 22, causing the docking roller 26 to rise within the sealed box 21. During the rise of the docking roller 26, it engages with the helical rack 29. Under the obstruction of the helical rack 29, the docking roller 26 rotates, which in turn causes the filter screen 22 to rotate. The switched filter screen 22 seals the bottom opening of the tilting frame 3. When air is drawn in, the airflow passes through the filter screen 22, which can intercept dust and impurities in the airflow. When the two tilting frames 3 come close to each other, hot airflow is discharged, and the discharged airflow can also have a counter-impact on the filter screen 22. Furthermore, as the mounting roller 25 resets, the reset spring 23 and the connecting ring 27 pull the docking roller 26 back to its original position. As the filter screen 22 moves into the sealing box 21, the scraper 24 scrapes the filter screen 22, further cleaning it. Meanwhile, because the reset spring 23 pulls downward and the oblique teeth on the rack 29 tilt downward, the docking roller 26 does not engage with the rack 29 when it resets. During the continuous operation of the oscillating heat dissipation mechanism, the unidirectional rotation of the docking roller 26 will cause the filter screen 22 to rotate cyclically. This not only reduces the probability of local blockage of the filter screen 22, but also works with the scraper 24 to periodically scrape and clean the filter screen 22.

[0062] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0063] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0064] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent protective ring main unit, comprising a ring main unit body and an electrical mounting plate (1) installed inside the ring main unit body; characterized in that The ring network box is composed of a base (2), a flip frame (3), a cabinet door (6), and locking components; The base (2) is a box-shaped structure with an open top, and the flipping frame (3) is symmetrically installed on the base (2); The inner wall of the base (2) is provided with a horizontally arranged moving groove (4), and each of the flipping frames (3) is fixedly installed with a flipping rod (5). The flipping rod (5) extends into the moving groove (4). In the maintenance state, the flipping frame (3) flips to the side wall of the base (2) through the flipping rod (5) and the moving groove (4). The flipping frame (3) is a C-shaped frame structure. Each flipping frame (3) is fitted with a cabinet door (6) by hinges. The cabinet door (6) and the flipping frame (3) together form a box-shaped structure with an open bottom. The cabinet door (6) and the flip frame (3) are detachably connected on the side away from the hinge by a pin (7). A locking component is installed on two adjacent flip frames (3). In the initial state, the two flip frames (3) are connected by the locking component.

2. The intelligent guard ring network box according to claim 1, characterized in that: It also includes an extension mechanism, which is installed inside the ring network box. The extension mechanism is used to increase the gap of the electrical mounting plate (1). The extension mechanism includes a support rail (8) and an extension rail (9). The support rail (8) is fixedly installed on the base (2). The electrical mounting plate (1) is installed on the support rail (8) at equal intervals. The extension rail (9) is fixedly installed inside the flipping frame (3). After the flipping frame (3) is flipped to one side of the base (2), the extension rail (9) is flush with the support rail (8), and the distance between the extension rail (9) and the support rail (8) is greater than the bottom width of the electrical mounting plate (1).

3. The intelligent guard ring network box according to claim 2, characterized in that: A buffer plate (10) is fixedly installed on the side wall of the base (2). The buffer plate (10) is made of elastic metal material. In the initial state, the buffer plate (10) extends to the side wall of the flipping frame (3).

4. The intelligent guard ring network box according to claim 3, characterized in that: The base (2) has a lifting groove (11) on its side wall. A lifting block (12) is slidably installed in the lifting groove (11). A connecting spring (13) is embedded in the lifting block (12). The end of the connecting spring (13) away from the lifting block (12) extends and is fixedly installed on the buffer plate (10).

5. The intelligent guard ring network box according to claim 4, characterized in that: The locking component includes a connecting end (14), a locking end (15), and a limiting spring (17). The connecting end (14) and the locking end (15) are respectively installed on two flipping frames (3). The locking end (15) is fixedly connected to the flipping frame (3). The connecting end (14) is rotatably connected to the flipping frame (3). The top of the locking end (15) is provided with a connecting groove (16). The connecting end (14) extends into the connecting groove (16). One end of the connecting end (14) extending into the connecting groove (16) is designed in an L shape. The limiting spring (17) is fixedly installed in the connecting groove (16). After the connecting end (14) is in the connecting groove (16), the limiting spring (17) is located on the translation path of the connecting end (14). When the two flipping frames (3) are connected by the locking component, the two flipping frames (3) are elastically connected by the locking component.

6. The intelligent guard ring network box according to claim 5, characterized in that: The two flip frames (3) are close to each other and fit each other in shape. In the initial state, the two flip frames (3) are close to each other and are connected. The distance between the flip frames (3) is greater than the maximum translation distance of the connecting end (14) in the connecting groove (16). The base (2) and the splice of the two flip frames (3) are all fixedly installed with elastic sealing plates.

7. The intelligent guard ring network box according to claim 6, characterized in that: The ring network box is equipped with a swaying heat dissipation mechanism, which includes a drive motor (18) and a cam (19). The drive motor (18) is fixedly installed on the base (2), and the output end of the drive motor (18) is fixedly installed with a cam (19). The cam (19) extends to the flipping rod (5). When the flipping frame (3) is connected by a locking member, the flipping rod (5) is located on the rotation path of the cam (19). Permanent magnets are embedded in the electrical mounting plates (1), and the same magnetic poles of the permanent magnets on two adjacent electrical mounting plates (1) are close to each other.

8. The intelligent guard ring network box according to claim 7, characterized in that: Both sides of the base (2) are elastically mounted with sealing boxes (21) by support springs (20). The flipping frame (3) is mounted with filter screens (22) on the opposite side. A reset spring (23) is fixedly installed inside the sealing box (21). The filter screen (22) extends into the sealing box (21) and is connected to the reset spring (23).

9. The intelligent guard ring network box according to claim 8, characterized in that: Each of the sealed boxes (21) is fixedly equipped with a scraper (24) on a side away from each other. The scraper (24) is used to scrape and remove dust from the reset filter screen (22).

10. The intelligent guard ring network box according to claim 9, characterized in that: An installation roller (25) is rotatably mounted on the flipping frame (3), and a docking roller (26) is slidably mounted inside the sealing box (21). The filter screen (22) is annularly sleeved on the installation roller (25) and the docking roller (26). A connecting ring (27) is sleeved on the docking roller (26), and the connecting ring (27) is fixedly connected to the return spring (23). A helical rack (29) is installed on the inner wall of the sealing box (21) through an elastic strip (28). Both ends of the docking roller (26) are gear-shaped. The docking roller (26) engages with the helical rack (29) in one direction during the lifting and lowering process.

Images