Modularized high-frequency switch intelligent power supply distribution box based on intelligent power grid

Abstract

The invention discloses a modular high-frequency switch intelligent power distribution box based on an intelligent power grid, and belongs to the technical field of distribution boxes, the modular high-frequency switch intelligent power distribution box comprises a box body, the outer wall of the box body is rotatably connected with a mounting shaft, and the outer wall of the mounting shaft is fixedly connected with a box door A and a box door B. The weight of accumulated snow is used as driving force, through linkage of the storage box, the elastic telescopic rod, the lifting rod and the worm and worm gear mechanism, descending of the protective shed and unfolding of the protective plate are achieved, snowflakes are actively blocked, the protective area is enlarged, the scraper is synchronously driven to move, the accumulated snow on the top of the box is cleared away in time, and accumulation is prevented. Meanwhile, the system can melt the collected accumulated snow by using the working heat dissipated by the box body, drains water through a designed path, avoids the secondary damage of melt water to the box body, automatically resets after snow stops, is efficient and energy-saving, greatly improves the safety and reliability of the distribution box in severe snowy days, and reduces the requirements of manual maintenance.

Description

Technical Field

[0001] This application relates to the field of distribution box technology, and more specifically, to a modular high-frequency switching intelligent power distribution box based on a smart grid. Background Technology

[0002] Distribution boxes are electrical equipment characterized by their small size, easy installation, special technical performance, fixed location, unique configuration functions, no site restrictions, wide application, stable and reliable operation, high space utilization, small footprint, and environmental benefits.

[0003] For example, Chinese Patent Publication No. CN116960786A discloses the following technical solution: An intelligent distribution box dual-power automatic transfer switch system, including a distribution box body, a power supply box fixedly installed on the top of the distribution box body, a main power supply, a dual-power automatic transfer switch and an auxiliary power supply fixedly installed on the inner bottom wall of the power supply box, the main power supply and the auxiliary power supply being electrically connected to the dual-power automatic transfer switch, two power monitoring sensors fixedly installed on the inner top wall of the power supply box, the two power monitoring sensors being electrically connected to the main power supply and the auxiliary power supply respectively, and a protective component being provided on the outside of the distribution box body.

[0004] The existing technology has the following problems: The snow removal components in the aforementioned device rely on motor drive and cannot work when there is a power outage; moreover, the protective components cannot dynamically adjust the protection range according to the amount of snow accumulation, and snow easily accumulates on the top of the power supply box and seeps into the box after melting. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a modular high-frequency switching intelligent power distribution box based on a smart grid, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, this application provides a modular high-frequency switching intelligent power distribution box based on a smart grid, including a box body, an installation shaft rotatably connected to the outer wall of the box body, and a box door A and a box door B fixedly connected to the outer wall of the installation shaft; A fixing block is fixedly connected to the outer wall of the box. An elastic telescopic rod is fixedly connected to the upper end of the fixing block. A protective canopy is fixedly connected to the top of the elastic telescopic rod. A protective plate is slidably connected to the outer wall of the protective canopy. A connecting rod A is fixedly connected to the outer wall of the protective canopy. A storage box is fixedly connected to the other end of the connecting rod A. The outer wall of the box is fixedly connected to the fixed box. A worm gear sleeve and a lead screw are rotatably connected inside the fixed box. A lifting rod is fixedly connected to the bottom of the protective canopy. A spiral groove is opened on the outer wall of the lifting rod. A sliding shaft is fixedly connected to the inner wall of the worm gear sleeve. A worm wheel is fixedly sleeved on the outer wall of the lead screw. A moving block is threadedly connected to the outer wall of the lead screw. A scraper is fixedly connected to the bottom of the moving block. A connecting rod B is fixedly connected to the outer wall of the box. A V-shaped plate is fixedly connected to the top of the connecting rod B. A sliding groove A is opened on the outer wall of the V-shaped plate. A sliding rod is fixedly connected to the outer wall of the protective plate. One end of the sliding rod is slidably connected inside the sliding groove A.

[0007] Preferably, the bottom of the lifting rod slides through the worm sleeve, the sliding shaft is slidably connected inside the spiral groove, and the worm sleeve meshes with the worm wheel.

[0008] Preferably, a protective box is fixedly connected to the outer wall of the fixed box, one side of the lead screw is located inside the protective box, a through groove is provided at the bottom of the protective box, and the moving block is slidably connected to the through groove.

[0009] Preferably, the outer wall of the protective shed is fixedly connected to a slide rail, and the inner side of the protective plate is provided with a slide groove B, through which the protective plate is slidably connected to the slide rail.

[0010] Preferably, the outer wall of the housing is equipped with a prompting component, the prompting component includes a connecting cylinder, the connecting cylinder is fixedly connected to the bottom of the worm gear sleeve, the bottom of the connecting cylinder movably passes through the fixing box and is fixedly fitted with a cam block, the outer wall of the housing is fixedly connected to a mounting block A, the outer wall of the mounting block A is fixedly connected to a pressure spring, and the other end of the pressure spring is fixedly connected to a spring plate.

[0011] Preferably, the prompting component further includes a limiting rod and a limiting hole. The limiting rod is fixedly connected to the bottom of the protective canopy, and the limiting hole is opened at the top of the mounting shaft. The size of the limiting hole is adapted to the limiting hole.

[0012] Preferably, the spring sheet is located on the side of the cam block, and the two sides of the spring sheet are set to be arc-shaped.

[0013] Preferably, the inner walls of the boxes A and B are equipped with an emergency separation assembly. The emergency separation assembly includes a mounting block B, which is fixedly connected to the inner wall of the box A. The upper end of the mounting block B is fixedly connected to a mounting cylinder, which is filled with paraffin wax. A piston is provided at the upper end of the paraffin wax, and a rod is fixedly connected to the upper end of the piston. A limit block is fixedly connected to the inner wall of the box B.

[0014] Preferably, the upper end of the limiting block is provided with an insertion hole, and the diameter of the insertion hole matches the diameter of the insertion rod.

[0015] Preferably, the piston is slidably connected to the inner wall of the mounting cylinder, and the edge of the piston is in close contact with the inner wall of the mounting cylinder.

[0016] The advantages of this application are: (1) This application utilizes the weight of the snow itself as the driving force. Through the linkage of the storage box, elastic telescopic rod, lifting rod and worm gear mechanism, it not only realizes the lowering of the protective canopy and the unfolding of the protective plate, which can actively block snowflakes and expand the protective area, but also simultaneously drives the scraper to move, clearing the snow on the top of the box in time and preventing accumulation. At the same time, the system can use the working heat emitted by the box to melt the collected snow and drain it through a designed path, avoiding secondary damage to the box by meltwater. When the snow stops, it automatically resets, which is highly efficient and energy-saving, greatly improving the safety and reliability of the distribution box in severe snowy weather and reducing the need for manual maintenance.

[0017] (2) This application, by setting up a prompting component, uses the cooperation of the cam block and the spring plate to convert the mechanical movement of the cleaning mechanism into a clear audible prompt, which can effectively warn surrounding personnel that the equipment is running, avoid accidental contact or approach, and play a role in active safety protection. At the same time, by using the limit rod driven by the descent of the protective canopy to insert into the mounting shaft, the mechanical locking of the box door is realized, which fundamentally prevents the box door from being accidentally opened during automatic snow removal operations, which may cause equipment failure or personal injury.

[0018] (3) This application, by setting up an emergency separation component, utilizes the physical property of the paraffin filler expanding rapidly when heated. When the temperature rises to a critical point, it automatically pushes the insert rod out of the limiting block, releasing the locking state between the cabinet doors. This design ensures that even in the case of mechanical locking in Embodiment 2, in the event of a fire, personnel can quickly and forcibly open the cabinet door from the outside to carry out firefighting and rescue without any tools or complicated operations, effectively preventing the expansion of the disaster that may be caused by the inability to open the cabinet door. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial cross-sectional structural schematic diagram of the present invention; Figure 3 This is the invention Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This is the invention Figure 1 Enlarged structural diagram at point B; Figure 5 This is a top view of the structure of the present invention; Figure 6 This is the invention Figure 5 Enlarged structural diagram at point C; Figure 7 This is a schematic diagram of the back cross-sectional structure of the present invention; Figure 8 This is the invention Figure 7 Enlarged structural diagram at point D.

[0020] In the above image, 1. Box body; 2. Mounting shaft; 31. Box door A; 32. Box door B; 41. Fixing block; 42. Elastic telescopic rod; 43. Protective canopy; 44. Protective plate; 45. Connecting rod A; 46. Storage box; 47. Fixing box; 48. Worm gear sleeve; 49. Lifting rod; 410. Spiral groove; 411. Sliding shaft; 412. Lead screw; 413. Worm gear; 414. Moving block; 415. Scraper; 416. Through groove; 417. V-shaped plate; 418. 419. Slide rail; 420. Slide bar; 421. Slide rail; 422. Connecting rod B; 423. Protective box; 5. Warning component; 51. Connecting cylinder; 52. Cam block; 53. Mounting block A; 54. Pressure spring; 55. Spring plate; 56. Limiting rod; 57. Limiting hole; 6. Emergency separation component; 61. Mounting block B; 62. Paraffin filler; 63. Piston; 64. Insert rod; 65. Limiting block; 66. Mounting cylinder. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative effort should fall within the scope of protection of the present application.

[0022] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be used interchangeably where appropriate for the purposes of describing embodiments of this application herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0023] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0024] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0025] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] Example 1, see Figures 1-8 This embodiment provides a modular high-frequency switch intelligent power distribution box based on a smart grid, including a box body 1, an installation shaft 2 rotatably connected to the outer wall of the box body 1, and a box door A31 and a box door B32 fixedly connected to the outer wall of the installation shaft 2. A fixing block 41 is fixedly connected to the outer wall of the box 1. An elastic telescopic rod 42 is fixedly connected to the upper end of the fixing block 41. A protective canopy 43 is fixedly connected to the top of the elastic telescopic rod 42. A protective plate 44 is slidably connected to the outer wall of the protective canopy 43. A connecting rod A45 is fixedly connected to the outer wall of the protective canopy 43. A storage box 46 is fixedly connected to the other end of the connecting rod A45. The outer wall of the box 1 is fixedly connected to the fixing box 47. A worm gear sleeve 48 and a lead screw 412 are rotatably connected inside the fixing box 47. A lifting rod 49 is fixedly connected to the bottom of the protective canopy 43. The outer wall of the lifting rod 49 is open. The device has a spiral groove 410. A sliding shaft 411 is fixedly connected to the inner wall of the worm sleeve 48. A worm wheel 413 is fixedly sleeved on the outer wall of the lead screw 412. A moving block 414 is threadedly connected to the outer wall of the lead screw 412. A scraper 415 is fixedly connected to the bottom of the moving block 414. A connecting rod B422 is fixedly connected to the outer wall of the housing 1. A V-shaped plate 417 is fixedly connected to the top of the connecting rod B422. A sliding groove A418 is opened on the outer wall of the V-shaped plate 417. A sliding rod 419 is fixedly connected to the outer wall of the protective plate 44. One end of the sliding rod 419 is slidably connected inside the sliding groove A418.

[0028] The bottom of the lifting rod 49 slides through the worm sleeve 48, the sliding shaft 411 is slidably connected inside the spiral groove 410, and the worm sleeve 48 meshes with the worm wheel 413. By setting the linkage structure of the protective canopy 43 and the protective plate 44, dynamic protection of the top of the distribution box is achieved.

[0029] A protective box 423 is fixedly connected to the outer wall of the fixed box 47. One side of the lead screw 412 is located inside the protective box 423. A through groove 416 is provided at the bottom of the protective box 423. The moving block 414 is slidably connected to the through groove 416. By setting the protective box 423, the transmission components such as the lead screw 412 and the moving block 414 can be effectively shielded. At the same time, the design of the through groove 416 provides guidance for the lateral movement of the moving block 414, ensuring that the scraper 415 can stably act on the outer wall of the box 1 to achieve the function of cleaning surface dust.

[0030] The outer wall of the protective shed 43 is fixedly connected to a slide rail 420, and the inner side of the protective plate 44 is provided with a slide groove B421. The protective plate 44 is slidably connected to the slide rail 420 through the slide groove B421.

[0031] In practical use, during heavy snowfall in winter, the snow accumulates inside the storage box 46. As the weight of the snow increases, the storage box 46 compresses the elastic telescopic rod 42 downwards, causing the protective canopy 43 to move downwards as a whole. During the downward movement of the protective canopy 43, the lifting rod 49 moves downwards simultaneously. The spiral groove 410 on its outer wall drives the worm gear sleeve 48 to rotate through the sliding shaft 411. The worm gear sleeve 48 meshes with the worm wheel 413, causing the lead screw 412 to rotate. The lead screw 412 drives the moving block 414 to move laterally along the through groove 416, thereby causing the scraper 415 to scrape and clean the snow on the top of the box 1. At the same time, as the protective canopy 43 moves downwards, the sliding rod 419 slides in the sliding groove A418 through the cooperation of the connecting rod B422 and the V-shaped plate 417, pushing the protective plate 44 to unfold to both sides along the sliding rail 420, expanding the protective area to block falling snowflakes. After the storage box 46 descends to a certain position and comes into contact with the outer wall of the box 1, the heat generated by the internal components of the box 1 will be transferred to the storage box 46 through the wall of the box 1, causing the snow inside the storage box 46 to gradually melt. The melted snow water flows out through the opening of the storage box 46 and eventually drains to an area away from the box 1. After the snow stops, as the weight of the snow inside the storage box 46 decreases, the elastic telescopic rod 42 returns to its original position under its own elastic force, causing the protective canopy 43 to rise. At this time, the lifting rod 49 moves upward, and the spiral groove 410 drives the worm gear sleeve 48 to rotate in the opposite direction through the sliding shaft 411, which in turn causes the lead screw 412 to reverse. The moving block 414 drives the scraper 415 back to its initial position. At the same time, the protective plate 44, with the cooperation of the sliding rod 419 and the sliding groove A418, retracts towards the middle along the sliding rail 420, reducing the space occupied in non-snowy weather.

[0032] Example 2, see Figures 1-8 In this embodiment, based on the first embodiment, a prompting component 5 is assembled on the outer wall of the box 1. The prompting component 5 includes a connecting cylinder 51, which is fixedly connected to the bottom of the worm gear sleeve 48. The bottom of the connecting cylinder 51 movably passes through the fixing box 47 and is fixedly fitted with a cam block 52. An installation block A53 is fixedly connected to the outer wall of the box 1. A pressure spring 54 is fixedly connected to the outer wall of the installation block A53. A spring sheet 55 is fixedly connected to the other end of the pressure spring 54.

[0033] The prompt component 5 also includes a limiting rod 56 and a limiting hole 57. The limiting rod 56 is fixedly connected to the bottom of the protective canopy 43, and the limiting hole 57 is opened at the top of the mounting shaft 2. The size of the limiting hole 57 is adapted to the limiting hole 57.

[0034] The spring plate 55 is located on the side of the cam block 52. The two sides of the spring plate 55 are set to be arc-shaped. The arc-shaped design on both sides of the spring plate 55 can reduce the friction when the cam block 52 is squeezed, reduce component wear, extend the service life of the prompting component 5, and at the same time make the vibration sound more stable and regular, and improve the reliability of the prompting effect.

[0035] When the above-mentioned equipment is used, when the worm sleeve 48 rotates, it will drive the cam block 52 to rotate synchronously through the connecting cylinder 51. During the rotation, the cam block 52 will periodically squeeze the spring plate 55, causing the spring plate 55 to undergo elastic deformation and vibrate when it returns to its original shape. The sound emitted by the vibration can serve as a warning to the surrounding environment, reminding the staff that snow removal work is being carried out on the top of the distribution box, so as to avoid personnel accidentally touching or approaching it. Simultaneously, during snow removal operations, the descent of the protective canopy 43 causes the bottom limit rod 56 to descend synchronously and insert into the limit hole 57, thus limiting the rotation of the mounting shaft 2. This prevents doors A31 and B32 from being accidentally opened during the snow removal operation, ensuring the safety of equipment operation. When the snow removal is complete and the protective canopy 43 rises back up, the limit rod 56 is pulled out of the limit hole 57, releasing the limit on the mounting shaft 2, and doors A31 and B32 resume their normal opening and closing functions.

[0036] Example 3, see Figures 1-8 In this embodiment, based on embodiment one, the inner walls of the boxes A31 and B32 are equipped with an emergency separation component 6. The emergency separation component 6 includes a mounting block B61, which is fixedly connected to the inner wall of the box A31. The upper end of the mounting block B61 is fixedly connected to a mounting cylinder 66, which is filled with paraffin wax filler 62. A piston 63 is provided at the upper end of the paraffin wax filler 62, and a rod 64 is fixedly connected to the upper end of the piston 63. A limit block 65 is fixedly connected to the inner wall of the box B32.

[0037] The upper end of the limiting block 65 is provided with an insertion hole, the diameter of which matches the diameter of the insertion rod 64, ensuring that the insertion rod 64 can be accurately inserted into the insertion hole of the limiting block 65 when the paraffin filler 62 expands due to heat, thereby realizing the quick locking of the cabinet door A31 and the cabinet door B32.

[0038] Piston 63 is slidably connected to the inner wall of mounting cylinder 66, and the edge of piston 63 is tightly fitted to the inner wall of mounting cylinder 66. This design can effectively prevent the paraffin filler 62 from leaking from the gap between piston 63 and mounting cylinder 66 during the process of thermal expansion, ensuring the stability and sealing of the transmission, and allowing the insertion rod 64 to move smoothly upward under the push of paraffin filler 62, ensuring the locking effect of door A31 and door B32 in emergency situations.

[0039] When using the above equipment for snow removal, since the mounting shaft 2 cannot rotate, neither door A31 nor door B32 can be opened. If a fire suddenly breaks out inside the housing 1, the emergency separation components 6 on the inner walls of doors A31 and B32 will respond quickly. As the internal temperature rises, the paraffin filler 62 in the mounting cylinder 66 melts and expands, pushing the piston 63 upwards. The piston 63 then drives the insertion rod 64 to disengage from the insertion hole of the limiting block 65, releasing the locking between doors A31 and B32. At this point, workers can directly push the lower door B32 open to both sides for quick emergency treatment inside the housing, without first raising the protective canopy 43, thus avoiding delays in rescue due to the inability to open the doors.

[0040] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A modular high frequency switching smart power distribution panel based on smart grid comprising a cabinet, characterized in that, The outer wall of the box body is rotationally connected with a mounting shaft, and the outer wall of the mounting shaft is fixedly connected with a box door A and a box door B; The outer wall of the box body is fixedly connected with a fixed block, the upper end of the fixed block is fixedly connected with an elastic telescopic rod, the top of the elastic telescopic rod is fixedly connected with a protective shed, the outer wall of the protective shed is slidably connected with a protective plate, the outer wall of the protective shed is fixedly connected with a connecting rod A, the other end of the connecting rod A is fixedly connected with a storage box, the outer wall of the box body is fixedly connected with a fixed box, the inside of the fixed box is rotationally connected with a worm sleeve and a lead screw, the bottom of the protective shed is fixedly connected with a lifting rod, the outer wall of the lifting rod is provided with a spiral groove, the inner wall of the worm sleeve is fixedly connected with a sliding shaft, the outer wall of the lead screw is fixedly sleeved with a worm wheel, the outer wall of the lead screw is threadedly connected with a moving block, the bottom of the moving block is fixedly connected with a scraper, the outer wall of the box body is fixedly connected with a connecting rod B, the top of the connecting rod B is fixedly connected with a V-shaped plate, the outer wall of the V-shaped plate is provided with a sliding groove A, and the outer wall of the protective plate is fixedly connected with a sliding rod.

2. The modular high frequency switching smart power distribution panel based on smart grid of claim 1, wherein, The bottom of the lifting rod slidably penetrates the worm sleeve, the sliding shaft is slidably connected in the spiral groove, and the worm sleeve is engaged with the worm wheel.

3. The modular high frequency switching smart power distribution panel based on smart grid of claim 1, wherein, The outer wall of the fixed box is fixedly connected with a protective box, one side of the lead screw is located in the inside of the protective box, the bottom of the protective box is provided with a through groove, and the moving block is slidably connected with the through groove.

4. The modular high frequency switching smart power distribution panel based on smart grid of claim 1, wherein, The outer wall of the protective shed is fixedly connected with a sliding rail, the inside of the protective plate is provided with a sliding groove B, and the protective plate is slidably connected with the sliding rail through the sliding groove B.

5. The modular high frequency switching smart power distribution panel based on smart grid of claim 1, wherein, The outer wall of the box body is assembled with a prompt assembly, the prompt assembly comprises a connecting barrel, the connecting barrel is fixedly connected at the bottom of the worm sleeve, the bottom of the connecting barrel movably penetrates the fixed box and is fixedly sleeved with a cam block, the outer wall of the box body is fixedly connected with a mounting block A, the outer wall of the mounting block A is fixedly connected with a pressure spring, and the other end of the pressure spring is fixedly connected with a spring sheet.

6. The modular high frequency switching smart power distribution panel based on smart grid of claim 5, wherein, The prompt assembly further comprises a limiting rod and a limiting hole, the limiting rod is fixedly connected at the bottom of the protective shed, and the limiting hole is provided at the top of the mounting shaft.

7. The modular high frequency switching smart power distribution panel based on smart grid of claim 6, wherein, The spring sheet is located at the side of the cam block, and the two sides of the spring sheet are provided in an arc shape.

8. The modular high frequency switching smart power distribution panel based on smart grid of claim 7, wherein, The inner wall of the box door A and the box door B is assembled with an emergency separation assembly, the emergency separation assembly comprises a mounting block B, the mounting block B is fixedly connected at the inner wall of the box door A, the upper end of the mounting block B is fixedly connected with a mounting barrel, the inside of the mounting barrel is filled with a paraffin filler, the upper end of the paraffin filler is provided with a piston, the upper end of the piston is fixedly connected with a plug rod, and the inner wall of the box door B is fixedly connected with a limiting block.

9. The modular high frequency switching smart power distribution panel based on smart grid of claim 8, wherein, The upper end of the limiting block is provided with a plug hole, and the diameter of the plug hole is matched with the diameter of the plug rod.

10. The modular high frequency switching smart power distribution panel based on smart grid of claim 9, wherein, The piston is slidably connected at the inner wall of the mounting barrel, and the edge of the piston is tightly attached to the inner wall of the mounting barrel.

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