Alternating-current low-voltage power distribution cabinet with protection structure

Abstract

The invention relates to the technical field of power distribution cabinets, and discloses an alternating-current low-voltage power distribution cabinet with a protection structure, which comprises a cabinet body, a cabinet door is arranged on one side of the cabinet body, a base is arranged at the bottom of the cabinet body, a heat dissipation assembly is arranged at the top of the cabinet body, and the heat dissipation assembly comprises a water storage tank and a heat dissipation pipe communicated with the bottom of the water storage tank. The heat dissipation pipe is coiled on the inner wall of the cabinet body, and the bottom of the heat dissipation pipe is communicated with a water tank; and the sewage draining assembly is arranged in the water storage tank, a scraping plate is arranged in the sewage draining assembly, and a traction assembly is arranged between the scraping plate and the water tank. The water storage tank is arranged at the top of the cabinet body, the water storage tank is used for storing water, the heat dissipation pipe arranged in the cabinet body is communicated with the water storage tank, the flow guide pipe is arranged at the bottom of the water storage tank, water flow is guided into the heat dissipation pipe through the flow guide pipe to form circular flow, and the water flow is matched with other heat dissipation mechanisms to effectively cool the power distribution cabinet. The cooling effect is improved.

Description

Technical Field

[0001] This invention relates to the field of power distribution cabinet technology, specifically to an AC low-voltage power distribution cabinet with a protective structure. Background Technology

[0002] Distribution cabinets (boxes) are divided into power distribution cabinets (boxes), lighting distribution cabinets (boxes), and metering cabinets (boxes). They are the final-level equipment in a power distribution system. Distribution cabinets are a general term for motor control centers. Distribution cabinets are used in situations where the load is relatively dispersed and there are few circuits. Motor control centers are used in situations where the load is concentrated and there are many circuits. They distribute the electrical energy of a circuit from the previous level of power distribution equipment to the nearest load. This level of equipment should provide protection, monitoring, and control for the load. Because general distribution cabinets are installed outdoors for a long time, they are easily affected by the weather and become damp, which can damage and corrode the internal electrical components, causing losses. In addition, the heat dissipation performance of general distribution cabinets is poor, affecting their service life.

[0003] A high- and low-voltage distribution cabinet with a protective structure, disclosed in publication number "CN114825074A", includes a cabinet body. A moisture-proof base is fixedly installed at the lower end of the cabinet body. A coarse sand layer is fixedly installed on the lower side inside the moisture-proof base. An oil felt layer is fixedly installed at the upper end of the coarse sand layer inside the moisture-proof base. A ventilation opening is fixedly provided at the left end of the cabinet body. A drive motor is fixedly installed inside the cabinet body above the ventilation opening. A first connecting shaft is fixedly installed at the lower end of the drive motor's transmission end. This high- and low-voltage distribution cabinet with a protective structure achieves a moisture-proof effect by installing the coarse sand layer and the oil felt layer, preventing the distribution cabinet from being corroded and damaged by moisture, thus extending the service life of the device. By installing a humidity sensor and a drive motor, when the humidity is too high, the microprocessor starts the drive motor, which drives a baffle to rotate and close the ventilation opening, preventing external moisture from entering the device and protecting the distribution cabinet.

[0004] However, the existing technology and the above-mentioned technology still have the following drawbacks: During long-term use, the heat generated inside a distribution cabinet cannot be adequately dissipated through vents or cooling fans alone to ensure the safe operation of electrical components. Therefore, a low-voltage AC distribution cabinet with a protective structure is needed to address this issue. Summary of the Invention

[0005] This invention provides an AC low-voltage distribution cabinet with a protective structure, which solves the problem mentioned in the background art that the heat generated inside the distribution cabinet during long-term use is not enough to ensure the safety of electrical components by simply dissipating the heat through the heat dissipation vents or cooling fans.

[0006] The present invention provides the following technical solution: an AC low-voltage distribution cabinet with a protective structure, comprising a cabinet body, a cabinet door on one side of the cabinet body, a base at the bottom of the cabinet body, and a heat dissipation assembly at the top of the cabinet body. The heat dissipation assembly includes a water storage tank and a heat dissipation pipe connected to the bottom of the water storage tank. The heat dissipation pipe is coiled around the inner wall of the cabinet body, and the bottom of the heat dissipation pipe is connected to a water tank. The invention also includes a sewage discharge assembly disposed in the water storage tank, wherein a scraper is disposed within the sewage discharge assembly, and a traction assembly is disposed between the scraper and the water tank.

[0007] As an optional embodiment of the AC low-voltage distribution cabinet with protective structure described in this invention, the water storage tank is provided with symmetrically arranged drain outlets, the bottom of the drain outlets is connected to a guide pipe, the guide pipe and the water inlet of the heat dissipation pipe are connected, and a mounting bracket for installing electrical components is provided on one side of the heat dissipation pipe inside the cabinet.

[0008] As an optional solution for the AC low-voltage distribution cabinet with protective structure described in this invention, the bottom of the water tank is provided with a first spring at each of the four corners, the bottom of the first spring is connected to the bottom surface of the cabinet, and the top of the water tank is connected to the outlet of the heat dissipation pipe through a flexible hose.

[0009] As an optional embodiment of the AC low-voltage distribution cabinet with protective structure described in this invention, the water tank is provided with two sets of connecting frames symmetrically arranged inside. The bottom of the connecting frames is connected to a sealing plate by a second spring. The bottom of the water tank is provided with a through hole, and the sealing plate is sealed inside the through hole. The bottom of the cabinet is provided with two sets of top rods, and the top rods and the sealing plate are correspondingly arranged. The bottom of the water tank is provided with two sets of limiting plates symmetrically arranged on both sides of the sealing plate.

[0010] As an optional solution of the AC low-voltage distribution cabinet with protective structure described in this invention, the sewage discharge component further includes a sewage discharge port disposed on one side of the water storage tank, and a first baffle that can be flipped is disposed on the outer side of the sewage discharge port. A push rod is disposed on the side of the scraper near the sewage discharge port, and the push rod and the first baffle are disposed correspondingly.

[0011] As an optional embodiment of the AC low-voltage distribution cabinet with protective structure described in this invention, the scraper is slidably connected to the water storage tank, and a third spring is connected between one side of the scraper and the inner wall of the water storage tank.

[0012] As an optional solution of the AC low-voltage distribution cabinet with protective structure described in this invention, the water storage tank is provided with second baffles symmetrically arranged on both sides, and a bushing is provided between the second baffle and the water storage tank. A pin is rotatably connected inside the bushing, and a torsion spring is provided outside the pin. The torsion spring is connected between the bushing and the second baffle.

[0013] As an optional solution of the AC low-voltage distribution cabinet with protective structure described in this invention, the traction component includes a traction rope, one end of which is connected to one side of the scraper, and the other end of which is connected to one side of the water tank. A through hole for the traction rope is provided on one side of the water tank, and an ear plate is provided on one side of the through hole on the outer wall of the cabinet. A pulley rotates between two adjacent sets of ear plates, and the traction rope is driven by the pulley.

[0014] As an optional embodiment of the AC low-voltage distribution cabinet with a protective structure described in this invention, the surface of the heat dissipation pipe is provided with a friction plate, the friction plate is provided with a cleaning groove matching the heat dissipation pipe, and the friction plate moves back and forth on the surface of the heat dissipation pipe.

[0015] As an optional embodiment of the AC low-voltage distribution cabinet with protective structure described in this invention, wherein: a tension spring is connected between the two sets of friction plates, and an adjustment seat is provided on the top of the friction plate; two sets of rails are symmetrically arranged on the inner wall of the cabinet; the adjustment seat is slidably connected between the two sets of rails; the surface of the adjustment seat that is in contact with the friction plate is set as an inclined surface; and a connecting rod is connected between the adjustment seat and the water tank.

[0016] The present invention has the following beneficial effects: 1. This AC low-voltage distribution cabinet with a protective structure has a water storage tank on the top of the cabinet for storing water. The water storage tank is connected to a heat dissipation pipe installed in the cabinet. A guide pipe is provided at the bottom of the water storage tank to guide the water flow into the heat dissipation pipe, forming a circulation flow. The water flow, in conjunction with other heat dissipation mechanisms, effectively cools the distribution cabinet and improves the cooling effect. 2. This AC low-voltage distribution cabinet with a protective structure, by setting a first spring at the bottom of the water tank, allows the water tank to be elastically slidably connected to the cabinet body. When the water tank is subjected to external force, it can move up and down. A top rod corresponding to the sealing plate is set at the bottom of the cabinet body. The top rod will push up the sealing plate, causing the sealing plate to disengage from the through hole, thereby draining the water in the water tank through the through hole and realizing the automatic water drainage function. 3. This AC low-voltage distribution cabinet with a protective structure can remove accumulated impurities and dirt by setting a sewage discharge component in the water storage tank, thereby realizing an automatic cleaning function. By moving the water tank up and down, the traction rope is driven to pull the scraper, which slides along the inner bottom surface of the water storage tank, pushing the dirt to the sewage outlet and thus discharging it from the water storage tank, ensuring the normal water storage function of the water storage tank. 4. This AC low-voltage distribution cabinet with a protective structure has a sliding friction plate on the surface of the heat dissipation pipe. The friction plate has a cleaning groove, which can not only clean the heat dissipation pipe as thoroughly as possible when moving, but also ensure the stability of the friction plate moving on the surface of the heat dissipation pipe, thus ensuring the cleaning effect of the heat dissipation pipe and the heat dissipation effect of the heat dissipation pipe. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention from the perspective of the front view.

[0018] Figure 2 This is a side view sectional three-dimensional structural schematic diagram of the present invention.

[0019] Figure 3 This is a schematic diagram of the internal three-dimensional structure of the present invention.

[0020] Figure 4 This is a cross-sectional view of the structure from below.

[0021] Figure 5 This is a cross-sectional structural diagram of the water tank of the present invention.

[0022] Figure 6 This is a rear-view stereoscopic structural diagram of the present invention.

[0023] Figure 7 For the present invention Figure 6 Enlarged schematic diagram of the structure at point A in the middle.

[0024] Figure 8 For the present invention Figure 6 Enlarged schematic diagram of the structure at point B.

[0025] In the diagram: 1. Cabinet body; 2. Cabinet door; 3. Water storage tank; 4. Base; 5. Water tank; 6. First spring; 7. Mounting bracket; 8. Drain outlet; 9. Guide pipe; 10. Heat dissipation pipe; 11. Flexible hose; 12. Sealing plate; 13. Limiting plate; 14. Top rod; 15. Connecting bracket; 16. Second spring; 17. Scraper; 18. Traction rope; 19. Sewage outlet; 20. Push rod; 21. First baffle; 22. Ear plate; 23. Pulley; 24. Second baffle; 25. Third spring; 26. Bushing; 27. Pin; 28. Torsion spring; 29. ​​Adjusting seat; 30. Track; 31. Friction plate; 32. Tension spring; 33. Cleaning groove; 34. Connecting rod. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Example 1, please refer to Figures 1 to 8This invention discloses an AC low-voltage distribution cabinet with a protective structure, including a cabinet body 1, a cabinet door 2 on one side of the cabinet body 1, and a base 4 at the bottom of the cabinet body 1. A heat dissipation assembly is provided on the top of the cabinet body 1, the heat dissipation assembly includes a water storage tank 3 and a heat dissipation pipe 10 connected to the bottom of the water storage tank 3. The heat dissipation pipe 10 is coiled around the inner wall of the cabinet body 1, and a water tank 5 is connected to the bottom of the heat dissipation pipe 10. Drainage outlets 8 are symmetrically opened in the water storage tank 3, and a guide pipe 9 is connected to the bottom of the drainage outlet 8. The guide pipe 9 and the water inlet of the heat dissipation pipe 10 are connected.

[0028] In this embodiment, a water storage tank 3 is provided at the top of the cabinet 1 to store water. The water storage tank 3 is connected to the heat dissipation pipe 10 installed in the cabinet 1. The water flow, in conjunction with other heat dissipation mechanisms, effectively cools the distribution cabinet. Simultaneously, a water tank 5 is connected to the bottom of the heat dissipation pipe 10 for convenient storage and recycling of circulating water, achieving efficient utilization of water resources. The heat dissipation pipe 10 is coiled around the inner wall of the cabinet 1, increasing the heat dissipation area and improving heat dissipation efficiency. Specifically, a guide pipe 9 is provided at the bottom of the water storage tank 3, guiding the water flow into the heat dissipation pipe 10 to form a circulating flow, thereby effectively reducing the internal temperature of the cabinet 1.

[0029] It should be noted that in practical applications, a water storage tank can be installed on one side of the cabinet 1. The water storage tank is connected to the water storage tank 3 through a water pipe, and a water pump is installed on the water storage tank. On sunny days, the water pump can transport the water in the water storage tank to the water storage tank 3. During the rainy season, the water storage tank 3 can be used to collect rainwater and use the rainwater for cooling, thereby achieving the dual effects of energy saving and environmental protection.

[0030] A mounting bracket 7 for installing electrical components is provided on one side of the heat dissipation pipe 10 inside the cabinet 1.

[0031] In this embodiment, a mounting bracket 7 for installing electrical components is provided inside the cabinet 1. The mounting bracket 7 is made of metal and has good thermal conductivity. The heat dissipation pipe 10 is placed on one side of the mounting bracket 7, so that heat can be quickly conducted to the heat dissipation pipe 10 through the mounting bracket 7, further improving the heat dissipation efficiency. At the same time, the mounting bracket 7 is provided with multiple mounting holes, which facilitates flexible installation according to the size of different electrical components, improving the applicability and space utilization of the distribution cabinet.

[0032] Example 2 is an explanation based on Example 1. For details, please refer to [link / reference]. Figures 1 to 8The water tank 5 has four first springs 6 at its bottom corners, and the bottom of the first springs 6 is connected to the bottom surface of the cabinet 1. The top of the water tank 5 is connected to the outlet of the heat dissipation pipe 10 through a flexible hose 11. Two sets of connecting brackets 15 are symmetrically arranged inside the water tank 5. The bottom of the connecting brackets 15 is connected to a sealing plate 12 through a second spring 16. A through hole is opened at the bottom of the water tank 5, and the sealing plate 12 is sealed in the through hole. Two sets of top rods 14 are set at the bottom of the cabinet 1, and the top rods 14 and the sealing plate 12 are set accordingly. Two sets of limiting plates 13 are symmetrically arranged on both sides of the sealing plate 12 at the bottom of the water tank 5.

[0033] In this embodiment, the water tank 5 is slidably connected to the cabinet 1 by the first spring 6, so that the water tank 5 can move up and down when subjected to external force. When the water volume in the water tank 5 increases, the water tank 5 will compress the first spring 6 downward due to gravity. At this time, the top rod 14 will push up the sealing plate 12, causing the sealing plate 12 to disengage from the through hole, thereby draining the water in the water tank 5 through the through hole and realizing the automatic water discharge function. When the water volume decreases, the water tank 5 returns to its original position, and the sealing plate 12 re-seals the through hole under the action of the second spring 16, thereby preventing water leakage and restoring the water tank 5 to its water storage function.

[0034] It should be noted that the design of the limiting plate 13 can effectively limit the movement range of the sealing plate 12, ensuring that the sealing plate 12 will not leak due to the increase of water volume, and preventing the water volume in the water tank 5 from failing to meet the demand.

[0035] Example 3 is an explanation based on Example 1. For details, please refer to [link / reference]. Figures 1 to 8 It also includes a sewage discharge assembly installed in the water storage tank 3. The sewage discharge assembly is equipped with a scraper 17, and a traction assembly is installed between the scraper 17 and the water tank 5. The sewage discharge assembly also includes a sewage outlet 19 installed on one side of the water storage tank 3. Each sewage outlet 19 is equipped with a first baffle 21 that can be flipped. A push rod 20 is installed on the side of the scraper 17 near the sewage outlet 19. The push rod 20 and the first baffle 21 are correspondingly installed.

[0036] In this embodiment, considering that impurities and dirt will accumulate in the water storage tank 3 during long-term use, affecting the drainage effect, a sewage discharge component is set up to achieve an automatic cleaning function. When the water tank 5 moves up and down, the traction component drives the scraper 17 to move back and forth in the water storage tank 3, thereby collecting the impurities at the bottom of the water storage tank 3 and pushing them to the drain port 19. During the pushing process of the scraper 17, the push rod 20 will abut against the first baffle 21 to make it flip open, so that the impurities can be discharged smoothly. After the drainage is completed, the first baffle 21 will reset and close under its own weight or the action of the elastic element to prevent foreign objects from entering. This structure is reasonably designed, which not only realizes the automatic sewage discharge function of the water storage tank 3, but also effectively ensures the overall operational safety and stability of the distribution cabinet.

[0037] The scraper 17 is slidably connected to the water storage tank 3, and a third spring 25 is connected between one side of the scraper 17 and the inner wall of the water storage tank 3.

[0038] To ensure the scraper 17 returns to its original position, a third spring 25 is installed on the side of the scraper 17 furthest from the drain outlet 19. The third spring 25 provides reset force after the scraper 17 completes its discharge action, returning the scraper 17 to its initial position, thus completing one discharge cycle. This design effectively improves the working efficiency and automation of the discharge assembly, reduces the frequency of manual maintenance, and extends the service life of the distribution cabinet.

[0039] Example 4 is an explanation based on Example 1. For details, please refer to [link / reference]. Figures 1 to 8 The traction assembly includes a traction rope 18. One end of the traction rope 18 is connected to one side of the scraper 17, and the other end of the traction rope 18 is connected to one side of the water tank 5. A through hole for the traction rope 18 is provided on one side of the water storage tank 3. An ear plate 22 is provided on one side of the through hole on the outer wall of the cabinet 1. A pulley 23 rotates between two adjacent sets of ear plates 22, and the traction rope 18 is driven by the pulley 23.

[0040] In this embodiment, the provided traction assembly includes a traction rope 18, a lug 22, and a pulley 23. The rotation of the pulley 23 guides and transmits the traction rope 18, thereby effectively transmitting the power of the water tank 5's up-and-down movement to the scraper 17, ensuring that the scraper 17 slides stably within the water storage tank 3. This structure not only improves the transmission efficiency of the traction assembly but also reduces the wear of the traction rope 18, extends its service life, and makes the entire sewage discharge process smoother and more reliable.

[0041] When the water tank 5 reaches the set value, the water tank 5 moves downward due to gravity, and the traction rope 18 pulls the scraper 17, causing it to slide along the inner bottom surface of the water storage tank 3, pushing the dirt to the drain outlet 19.

[0042] The water storage tank 3 is symmetrically provided with second baffles 24 on both sides. A bushing 26 is provided between the second baffles 24 and the water storage tank 3. A pin 27 is rotatably connected inside the bushing 26. A torsion spring 28 is provided on the outside of the pin 27. The torsion spring 28 is connected between the bushing 26 and the second baffle 24.

[0043] In this embodiment, second baffles 24 are provided on both sides of the water storage tank 3. When the scraper 17 is in the initial position, it applies a certain pressure to the second baffles 24 to keep the second baffles 24 in a stable state and ensure the sealing of the water storage tank 3. When the scraper 17 slides, the second baffles 24 are elastically reset by the torsion spring 28, opening both sides of the water storage tank 3 so that the dirt brought back during the reset process of the scraper 17 can be discharged, avoiding the accumulation of dirt inside the water storage tank 3 and affecting the subsequent sewage discharge effect.

[0044] Example 5 is an explanation based on Example 1. For details, please refer to [link / reference]. Figures 1 to 8 A friction plate 31 is provided on the surface of the heat dissipation pipe 10. A cleaning groove 33 matching the heat dissipation pipe 10 is opened in the friction plate 31. The friction plate 31 moves back and forth on the surface of the heat dissipation pipe 10. A tension spring 32 is connected between the two sets of friction plates 31, and an adjustment seat 29 is provided on the top of the friction plate 31. Two sets of rails 30 are symmetrically arranged on the inner wall of the cabinet 1. The adjustment seat 29 is slidably connected between the two sets of rails 30. The surface of the adjustment seat 29 that is in contact with the friction plate 31 is set as an inclined surface. A connecting rod 34 is connected between the adjustment seat 29 and the water tank 5.

[0045] In this embodiment, a slidable friction plate 31 is provided on the surface of the heat sink 10, and a cleaning groove 33 is provided in the friction plate 31. This not only allows the heat sink 10 to be cleaned as thoroughly as possible during movement, but also ensures the stability of the friction plate 31 as it moves on the surface of the heat sink 10.

[0046] During the cleaning process, the adjusting seat 29 and the water tank 5 are connected by the connecting rod 34. As the water tank 5 moves up and down, it causes the adjusting seat 29 to slide along the track 30, thereby driving the friction plate 31 to reciprocate on the surface of the heat dissipation pipe 10, achieving automatic cleaning. This design effectively improves the cleaning efficiency of the heat dissipation pipe 10, reduces the frequency of manual maintenance, and ensures the long-term stable operation of the distribution cabinet. Furthermore, the tension spring 32 ensures that the two sets of friction plates 31 remain tightly attached to the surface of the heat dissipation pipe 10, improving the cleaning effect and preventing the friction plates 31 from shifting or jamming during reciprocating movement. The coordinated design of the track 30 and the adjusting seat 29 makes the entire cleaning process more stable and reliable, further improving the level of automated maintenance of the internal heat dissipation system of the distribution cabinet. In practical applications, when the water tank 5 shifts due to water replenishment or drainage, it drives the connecting rod 34, causing the adjusting seat 29 to slide reciprocally along the track 30, and the friction plate 31 moves accordingly on the surface of the heat dissipation pipe 10, achieving automatic cleaning. This linkage mechanism fully utilizes the displacement changes of the water tank 5, requiring no additional power source, thus saving energy and protecting the environment. Simultaneously, it effectively maintains the cleanliness of the surface of the heat dissipation pipe 10, ensuring stable internal temperature of the distribution cabinet and improving overall operational safety and reliability. Notably, this design also utilizes the inclined structure of the adjustment seat 29 to give the friction plate 31 a certain degree of self-adaptability during movement. This ensures that the downward movement of the adjustment seat 29 tightly contacts the two sets of friction plates 31 against the surface of the heat dissipation pipe 10, and allows for movement, ensuring the cleanliness of the heat dissipation pipe 10 and ultimately guaranteeing its heat dissipation performance.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, goods, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, goods, or apparatus.

[0048] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An AC low-voltage distribution cabinet with a protective structure, comprising a cabinet body (1), a cabinet door (2) provided on one side of the cabinet body (1), and a base (4) provided at the bottom of the cabinet body (1), characterized in that: The cabinet (1) is provided with a heat dissipation component on the top. The heat dissipation component includes a water tank (3) and a heat dissipation pipe (10) connected to the bottom of the water tank (3). The heat dissipation pipe (10) is coiled around the inner wall of the cabinet (1). The bottom of the heat dissipation pipe (10) is connected to a water tank (5). It also includes a sewage discharge assembly installed in the water storage tank (3), wherein a scraper (17) is installed in the sewage discharge assembly, and a traction assembly is installed between the scraper (17) and the water tank (5).

2. The AC low-voltage distribution cabinet with a protective structure according to claim 1, characterized in that: The water storage tank (3) is symmetrically provided with drain outlets (8), and the bottom of the drain outlets (8) is connected to a guide pipe (9). The guide pipe (9) and the water inlet of the heat dissipation pipe (10) are connected. The heat dissipation pipe (10) is provided with a mounting bracket (7) for installing electrical components on one side inside the cabinet (1).

3. The AC low-voltage distribution cabinet with a protective structure according to claim 1, characterized in that: The bottom of the water tank (5) is provided with a first spring (6) at the four corners. The bottom of the first spring (6) is connected to the bottom surface of the cabinet (1). The top of the water tank (5) is connected to the outlet of the heat dissipation pipe (10) through a hose (11).

4. The AC low-voltage distribution cabinet with a protective structure according to claim 3, characterized in that: Two sets of connecting frames (15) are symmetrically arranged inside the water tank (5). The bottom of the connecting frame (15) is connected to a sealing plate (12) by a second spring (16). The bottom of the water tank (5) has a through hole. The sealing plate (12) is sealed inside the through hole. The bottom of the cabinet (1) is provided with two sets of top rods (14). The top rods (14) and the sealing plate (12) are arranged correspondingly. The bottom of the water tank (5) is symmetrically provided with two sets of limiting plates (13) on both sides of the sealing plate (12).

5. The AC low-voltage distribution cabinet with a protective structure according to claim 1, characterized in that: The sewage discharge assembly also includes a sewage outlet (19) located on one side of the water storage tank (3). A first baffle (21) that can be flipped is provided on the outside of the sewage outlet (19). A push rod (20) is provided on the side of the scraper (17) near the sewage outlet (19). The push rod (20) and the first baffle (21) are provided in correspondence.

6. The AC low-voltage distribution cabinet with a protective structure according to claim 5, characterized in that: The scraper (17) is slidably connected to the water storage tank (3), and a third spring (25) is connected between one side of the scraper (17) and the inner wall of the water storage tank (3).

7. An AC low-voltage distribution cabinet with a protective structure according to claim 6, characterized in that: The water storage tank (3) is symmetrically provided with second baffles (24) on both sides. A bushing (26) is provided between the second baffle (24) and the water storage tank (3). A pin (27) is rotatably connected inside the bushing (26). A torsion spring (28) is provided on the outside of the pin (27). The torsion spring (28) is connected between the bushing (26) and the second baffle (24).

8. The AC low-voltage distribution cabinet with a protective structure according to claim 7, characterized in that: The traction assembly includes a traction rope (18), one end of which is connected to one side of the scraper (17), and the other end of which is connected to one side of the water tank (5). A through hole for the traction rope (18) is provided on one side of the water storage tank (3). An ear plate (22) is provided on one side of the through hole on the outer wall of the cabinet (1). A pulley (23) rotates between two adjacent sets of ear plates (22), and the traction rope (18) is driven by the pulley (23).

9. The AC low-voltage distribution cabinet with a protective structure according to claim 1, characterized in that: The surface of the heat sink (10) is provided with a friction plate (31), and a cleaning groove (33) matching the heat sink (10) is opened in the friction plate (31). The friction plate (31) moves back and forth on the surface of the heat sink (10).

10. An AC low-voltage distribution cabinet with a protective structure according to claim 9, characterized in that: A tension spring (32) is connected between the two sets of friction plates (31), and an adjustment seat (29) is provided on the top of the friction plate (31). Two sets of rails (30) are symmetrically arranged on the inner wall of the cabinet (1). The adjustment seat (29) is slidably connected between the two sets of rails (30). The surface of the adjustment seat (29) that is in contact with the friction plate (31) is set as an inclined surface. A connecting rod (34) is connected between the adjustment seat (29) and the water tank (5).

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