An explosion-proof and corrosion-resistant distribution box

Abstract

This invention belongs to the field of distribution box technology and relates to an explosion-proof and corrosion-resistant distribution box. The invention includes a box body, a mounting plate, and heat dissipation components. A door is provided on the front side of the box body, and the mounting plate is mounted on the box body. A circulation channel is opened inside the mounting plate, and the circulation channel communicates with a liquid container. A clearance groove is opened on the outer side of the box body, and multiple heat dissipation components are arranged in the clearance groove. Each heat dissipation component includes a first heat dissipation fin and a second heat dissipation fin. The first and second heat dissipation fins are rotatably connected by a rotating shaft. A second sliding groove and a limiting groove are opened on the top and bottom walls of the clearance groove, and a second sliding rod is slidably arranged in the second sliding groove. When the temperature inside the box rises to a certain level, the operating power of the water pump increases, the heat dissipation components expand further away, and the first heat dissipation fin, the second heat dissipation fin, and the inner wall of the clearance groove form a cooling chamber. The coolant circulates between the circulation channel, the clearance groove, and the liquid container, improving the cooling efficiency of the box body and causing the temperature of the box body to drop rapidly.

Description

Technical Field

[0001] This invention belongs to the field of distribution box technology and relates to an explosion-proof and corrosion-resistant distribution box. Background Technology

[0002] Distribution boxes are an important component of smart grids, providing strong support for the efficient, safe, and reliable operation of power systems. In the construction of smart grids, there may be locations with flammable or explosive gases or corrosive environments, such as in the petrochemical, metallurgical, and pharmaceutical industries. Explosion-proof and corrosion-resistant distribution boxes can provide reliable power distribution and control for these devices.

[0003] Electrical equipment inside explosion-proof and corrosion-resistant distribution boxes generates heat during operation. Excessive temperature can affect the normal operation of electrical components within the box, consequently impacting the smart grid's operation. Furthermore, it can pose a danger in flammable and explosive environments, such as igniting surrounding combustible gases or dust. Therefore, temperature control is a crucial guarantee for the safe operation of explosion-proof distribution boxes.

[0004] Currently, cooling of electrical control boxes is generally achieved by using fans or heat sinks. For example, patent document CN215771971U discloses a combined cooling, explosion-proof, and corrosion-resistant electrical control box, including a box body and a cover. The cover includes an upper cover and a lower cover. A partition is provided inside the box, fixedly mounted on the inner wall of the box body. The partition divides the box body into an upper cavity and a lower cavity. An electrical component mounting bracket is located in the upper cavity, and a fan mounting bracket is located in the lower cavity. A groove with a sealing strip is provided on the opening wall of the box body. A wiring terminal is located at the bottom of the box body, and a wiring terminal fixing hole is provided at the bottom of the lower cavity to mate with the wiring terminal. This invention uses a fan for cooling to avoid overheating and potential safety hazards.

[0005] The above-mentioned electrical control box has the following problems during use: when the ambient temperature is high, the heat dissipation effect is limited, which makes the temperature of the electrical control box easily rise, which is not conducive to safe operation.

[0006] To address the above problems, this invention proposes an explosion-proof and corrosion-resistant distribution box. Summary of the Invention

[0007] To address the problems existing in the background technology, the present invention proposes an explosion-proof and corrosion-resistant distribution box.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: an explosion-proof and corrosion-resistant distribution box, comprising a box body, a mounting plate, and heat dissipation components; a box door is provided on the front side of the box body, the mounting plate is disposed inside the box body, and a circulation channel is opened in the mounting plate, the circulation channel being connected to a liquid container; a clearance groove is opened on the outer side of the box body, and multiple heat dissipation components are disposed in the clearance groove; each heat dissipation component includes a first heat dissipation fin and a second heat dissipation fin; the first heat dissipation fin and the second heat dissipation fin are rotatably connected by a rotating shaft; a second sliding groove and a limiting groove are opened on the top and bottom walls of the clearance groove, a second sliding rod is slidably disposed in the second sliding groove, and the rotating shaft is connected between the two second sliding rods; a sliding column is connected to the end of the first heat dissipation fin and the second heat dissipation fin away from the second sliding rod, and the sliding column is movably disposed in the limiting groove.

[0009] Furthermore, a second channel is provided inside the box, a first channel is provided inside the box to connect the second channel and the circulation channel, and a through hole is provided inside the box to connect the second channel and the clearance groove; a baffle is slidably and sealed inside the through hole, and a first slide rod is fixedly connected to the second slide rod; the baffle and the first slide rod are elastically connected.

[0010] Furthermore, a spring groove is provided on the first sliding rod, and a second connecting post is fixedly connected to the baffle. The end of the second connecting post away from the baffle slides into the spring groove. A protrusion that limits the movement of the second connecting post is fixedly connected to the end of the second connecting post located in the spring groove. A second spring is provided in the spring groove, with one end of the second spring connected to the protrusion and the other end of the second spring fixedly connected to the end wall of the spring groove.

[0011] The baffle is fixedly connected to a third spring, and the other end of the third spring is fixedly connected to the end wall of the through hole.

[0012] Furthermore, elastic pads are installed at the ends of the first and second heat sinks that are away from the rotating shaft.

[0013] When the heat dissipation assembly is deployed, the elastic pad is positioned between the ends of the first and second heat sinks, ensuring a sealed contact between the first and second heat sinks.

[0014] Furthermore, both the first and second heat sinks are provided with a heat insulation layer. When the first and second heat sinks are folded together, the heat insulation layers on the first and second heat sinks approach each other.

[0015] When the heat dissipation components are deployed, the insulation layer is located on the outside of the cooling chamber, preventing external heat from entering the chamber.

[0016] Furthermore, a pressure relief assembly is installed on the enclosure, the pressure relief assembly includes a sealing cover, a pressure relief hole is provided on the top of the enclosure, the sealing cover is used to cover the pressure relief hole, and the sealing cover is elastically slidably connected to the enclosure.

[0017] Furthermore, the housing has two first sliding grooves, in which a first connecting post is slidably disposed, and the first connecting post is fixedly connected to the sealing cover. A first spring is disposed in the first sliding groove, one end of the first spring is fixedly connected to the end wall of the first sliding groove, and the other end of the first spring is fixedly connected to the first connecting post.

[0018] Furthermore, a first sealing gasket is installed on the sealing cover, and a first sealing groove that mates with the first sealing gasket is provided on the housing.

[0019] Furthermore, a water pump is installed inside the liquid container, and the water inlet end of the water pump is connected to an inlet pipe that extends into the bottom of the liquid container; one end of the circulation channel is connected to the water outlet end of the water pump, and the other end of the circulation channel is connected to the liquid container.

[0020] The water pump draws the coolant from the container into the circulation channel. The coolant in the circulation channel cools the mounting plate and then the entire housing. The coolant in the circulation channel flows back to the container through the end away from the water pump, thus circulating the coolant between the container and the circulation channel, which helps to improve the cooling efficiency of the housing.

[0021] Furthermore, a second sealing gasket is installed on the door, and a second sealing groove that mates with the second sealing gasket is installed on the body; when the door is closed, the second sealing gasket is inserted into the second sealing groove.

[0022] Compared with the prior art, the present invention has the following beneficial effects: when the ambient temperature is low, the first and second heat sinks dissipate heat from the casing. Starting the water pump causes the coolant to circulate between the circulation channel and the container, further cooling the casing.

[0023] When the outside temperature is high, the temperature difference between the inside and outside of the chamber is small, which limits the heat dissipation effect of the first and second heat sinks. This causes the temperature inside the chamber to rise further, increasing the operating power of the water pump and thus increasing the flow rate of the coolant in the circulation channel, thereby improving the heat dissipation efficiency. At the same time, the increased pressure of the coolant in the circulation channel pushes the baffle to move, and the second slide rod drives the rotating shaft to move, which in turn causes the heat dissipation components to gradually unfold. The first heat sink, the second heat sink, and the inner wall of the relief groove form a cooling chamber. The heat insulation layer is located on the outside of the cooling chamber, which plays a role in heat insulation and prevents external heat from being transferred into the chamber.

[0024] As the temperature inside the chamber continues to rise, the operating power of the water pump is further increased, which increases the pressure of the coolant in the circulation channel, causing the baffle to enter the second slide groove. This connects the through hole with the cooling chamber, allowing the coolant to enter the cooling chamber. The coolant circulates between the circulation channel, the cooling chamber, and the liquid container, improving the cooling efficiency of the chamber and causing the temperature of the chamber to drop rapidly. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a cross-sectional view in the first direction of the present invention;

[0027] Figure 3 In this invention Figure 2 Enlarged schematic diagram of part A;

[0028] Figure 4 This is a cross-sectional view in the second direction of the present invention;

[0029] Figure 5 In this invention Figure 4 Enlarged view of part B;

[0030] Figure 6 This is a schematic diagram of the mounting plate in this invention;

[0031] Figure 7 In this invention Figure 6 Enlarged schematic diagram of part C;

[0032] Figure 8 This is a cross-sectional view of the top of the box in this invention;

[0033] Figure 9 In this invention Figure 8 Enlarged view of part D;

[0034] Figure 10 This is a third-party sectional view of the present invention;

[0035] Figure 11 In this invention Figure 10 Enlarged view of part E;

[0036] Figure 12 This is a schematic diagram of the heat dissipation component in this invention;

[0037] Figure 13 This is a simplified diagram of the first state of the baffle in this invention;

[0038] Figure 14 This is a simplified diagram of the second state of the baffle in this invention;

[0039] Figure 15This is a simplified diagram of the third state of the baffle in this invention;

[0040] Figure 16 This is a simplified diagram showing the unfolded state of multiple heat dissipation components in this invention.

[0041] In the diagram: 1. Box body; 2. Liquid container; 3. Box door; 4. Sealing cover; 5. First connecting post; 6. First spring; 7. First slide groove; 8. First sealing gasket; 9. Pressure relief hole; 10. Second sealing gasket; 11. Mounting plate; 12. Circulation channel; 13. First channel; 14. Second channel; 15. Through hole; 16. First slide rod; 17. Second slide rod; 18. Third spring; 19. Second connecting post; 20. Baffle; 21. Second spring; 22. Water inlet pipe; 23. Water pump; 24. Drain hole; 25. Second slide groove; 26. First heat sink; 27. Second heat sink; 28. Elastic pad; 29. ​​Insulation layer; 30. Sliding post; 31. Rotating shaft; 32. Leaving groove; 33. Limiting groove. Detailed Implementation

[0042] 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.

[0043] like Figures 1-16 The image shows an explosion-proof and corrosion-resistant distribution box.

[0044] Example 1: The technical solution adopted by the present invention is as follows: An explosion-proof and corrosion-resistant distribution box includes a box body 1, a mounting plate 11 and a heat dissipation component.

[0045] A door 3 is installed on the front side of the enclosure 1. A second sealing gasket 10 is installed on the door 3, and a second sealing groove is provided on the enclosure 1. When the door 3 is closed, the second sealing gasket 10 is inserted into the second sealing groove, thereby sealing the inside of the enclosure 1 to prevent external gases or dust from entering the enclosure 1, avoiding adverse effects of gases or dust on the electrical components inside the enclosure 1, and also preventing gases or dust from corroding the inside of the enclosure 1, thus playing a role in corrosion prevention and explosion protection.

[0046] The outer surface of the box 1 and the door 3 are coated with anti-corrosion material to prevent the outer surface of the box 1 from being corroded.

[0047] An installation plate 11 is provided inside the housing 1. In this embodiment, the installation plate 11 is installed on the side of the housing 1 away from the door 3. Electrical components are installed on the installation plate 11.

[0048] A circulation channel 12 is provided within the mounting plate 11. The circulation channel 12 has a bent structure to increase the heat dissipation area and improve heat dissipation efficiency. A liquid container 2 is fixedly connected to the lower end of the housing 1. A water pump 23 is installed inside the liquid container 2. The outlet of the water pump 23 is connected to one end of the circulation channel 12, and the inlet of the water pump 23 is connected to an inlet pipe 22, which extends to the bottom of the liquid container 2. The other end of the circulation channel 12 is connected to the liquid container 2. A cooler is installed on the liquid container 2. The liquid container 2 contains coolant. The water pump 23 draws the coolant from the liquid container 2 into the circulation channel 12. The coolant in the circulation channel 12 cools the mounting plate 11, and in turn cools the electrical components inside the housing 1, ensuring the normal operation of the electrical components. The coolant in the circulation channel 12 flows into the liquid container 2 from the end away from the water pump 23, circulating continuously. The cooler cools the coolant in the liquid container 2.

[0049] The left, right, and rear sides of the housing 1 are provided with clearance slots 32. Each clearance slot 32 is equipped with multiple heat dissipation components.

[0050] The top and bottom walls of the clearance groove 32 are provided with a second sliding groove 25 and a limiting groove 33.

[0051] A second slide rod 17 is slidably disposed within the second slide groove 25. The length direction of the limiting groove 33 is parallel to the length direction of the second slide rod 17. The second slide rod 17 moves toward or away from the limiting groove. Multiple rotating shafts 31 are connected between two second slide rods 17 within the same clearance groove 32. The rotating shafts 31 are perpendicular to the second slide rods 17. A heat dissipation component is installed on each rotating shaft 31.

[0052] The heat dissipation assembly includes a first heat sink 26 and a second heat sink 27. One end of both the first heat sink 26 and the second heat sink 27 is rotatably connected to the rotating shaft 31. One side of the end of both the first heat sink 26 and the second heat sink 27 is rotatably connected to the rotating shaft 31. A sliding post 30 is connected to the end of both the first heat sink 26 and the second heat sink 27 away from the rotating shaft 31. The sliding post 30 is arranged parallel to the rotating shaft 31. The sliding post 30 is movably disposed within the limiting groove 33.

[0053] The second slide rod 17 slides within the relief groove 32 towards the limiting groove 33, pushing the rotating shaft 31 towards the limiting groove 33. This causes the first heat sink 26 and the second heat sink 27 to rotate around their respective rotating shafts 31. The ends of the first heat sink 26 and the second heat sink 27 away from the rotating shaft 31 gradually move away from each other, and the sliding post 30 slides along the limiting groove 33, gradually unfolding the heat dissipation assembly. When the heat dissipation assembly unfolds, the end of the first heat sink 26 abuts against the end of the adjacent second heat sink 27. The first heat sink 26 or the second heat sink 27 located at the end of the relief groove 32 contacts the inner wall of the relief groove 32. At this time, the first heat sink 26, the second heat sink 27, and the inner wall of the relief groove 32 constitute a cooling cavity.

[0054] Both the first heat sink 26 and the second heat sink 27 are equipped with heat insulation layers 29. When the heat dissipation assembly is folded, that is, when the first heat sink 26 and the second heat sink 27 within the same heat dissipation assembly are stacked together, the heat insulation layers 29 on the first heat sink 26 and the second heat sink 27 are in contact. At this time, the ends of the first heat sink 26 and the second heat sink 27 near the rotating shaft 31 are in contact with the housing 1, and the heat inside the housing 1 can be transferred to the outside through the first heat sink 26 and the second heat sink 27, thus dissipating heat and cooling the housing 1.

[0055] Elastic pads 28 are fixedly installed at the ends of the first heat sink 26 and the second heat sink 27 away from the rotating shaft 31. After the heat dissipation assembly is deployed, the end of the first heat sink 26 and the end of the adjacent second heat sink 27 abut against each other, and the elastic pads 28 are located between the first heat sink 26 and the adjacent second heat sink 27, so that the first heat sink 26 and the second heat sink 27 are in sealed contact.

[0056] When the outside temperature is high, the temperature difference between the inside and outside of the cabinet 1 is small, and the heat dissipation effect of the first heat sink 26 and the second heat sink 27 is small. In fact, the heat from the outside is transferred to the cabinet 1 through the first heat sink 26 and the second heat sink 27, which is not conducive to the temperature reduction of the cabinet 1.

[0057] The heat dissipation components are deployed, and the first heat sink 26, the second heat sink 27, and the inner wall of the relief groove 32 form a cooling chamber. This allows the coolant in the circulation channel 12 to flow into the cooling chamber, improving the heat dissipation effect on the housing 1. At this time, the heat insulation layer 29 is located on the outside of the cooling chamber, preventing external heat from being transferred into the cooling chamber.

[0058] A drain hole 24 is provided on the bottom wall of the second sliding groove 25 at the bottom of the relief groove 32. The drain hole 24 is connected to the liquid container 2, and the coolant entering the cooling chamber flows into the liquid container 2.

[0059] The upper and lower parts of the box 1 are provided with second channels 14, and the box 1 is provided with a first channel 13 that connects the second channel 14 and the circulation channel 12.

[0060] Each second slide rod 17 is fixedly connected to two first slide rods 16. The first slide rods 16 are slidably disposed within the through hole 15, which is located inside the housing 1. The through hole 15 connects to the second slide groove 25 and the second channel 14, and extends into the relief groove 32. A baffle 20 is slidably disposed within the through hole 15.

[0061] A third spring 18 is fixedly connected to the side of the baffle 20 away from the second channel 14. The end of the third spring 18 away from the baffle 20 is fixedly connected to the end wall of the through hole 15.

[0062] The baffle 20 and the first sliding rod 16 are elastically slidably connected. Specifically, the first sliding rod 16 has a spring groove, and the baffle 20 is fixedly connected to a second connecting post 19. The end of the second connecting post 19 away from the baffle 20 slides into the spring groove. A protrusion is fixedly connected to the end of the second connecting post 19 located in the spring groove. The protrusion has a limiting effect on the second connecting post 19, preventing it from coming out of the spring groove. A second spring 21 is provided in the spring groove. One end of the second spring 21 is connected to the protrusion, and the other end of the second spring 21 is fixedly connected to the end wall of the spring groove.

[0063] A temperature sensor and controller are installed inside the housing 1. The temperature sensor, cooler, and water pump 23 are all electrically connected to the controller. The temperature sensor detects the temperature inside the housing 1. When the temperature inside the housing 1 reaches a certain value, the water pump 23 starts. The water pump 23 draws the coolant from the container 2 into the circulation channel 12, which cools the housing 1. At this time, under the action of the third spring 18, the baffle 20 is positioned at the end of the through hole 15 near the second channel 14, preventing the coolant in the circulation channel 12 from entering the through hole 15.

[0064] If the temperature inside the housing 1 rises further, the power of the water pump 23 increases, causing the pressure of the coolant in the circulation channel 12 to increase. The baffle 20, subjected to this increased coolant pressure, slides against the force of the third spring 18 into the through hole 15. At this time, under the action of the second spring 21, the second connecting post 19 cannot move into the first sliding rod 16. The baffle 20, the first sliding rod 16, and the second sliding rod 17 move simultaneously, with the second sliding rod 17 pushing the rotating shaft 31 closer to the limiting groove 33. This causes both the first heat sink 26 and the second heat sink 27 to rotate around the rotating shaft 31. The ends of the first heat sink 26 and the second heat sink 27 away from the rotating shaft 31 gradually move away, and the sliding post 30 moves within the limiting groove 33. The two sliding posts 30 on the same heat dissipation assembly gradually move away from each other, and the heat dissipation assembly gradually unfolds. When the heat dissipation assembly is fully deployed, the ends of the first heat sink 26 and the adjacent second heat sink 27 abut against each other, and the first heat sink 26 or the second heat sink 27 at the end of the relief groove 32 abuts against the inner wall of the relief groove 32, thereby forming a cooling cavity with the first heat sink 26, the second heat sink 27 and the inner wall of the relief groove 32. At this time, the heat insulation layer 29 is located outside the cooling cavity, insulating it from the high temperature of the outside and preventing external heat from entering the housing 1.

[0065] If the temperature inside the housing 1 continues to rise, the operating power of the water pump 23 will further increase, causing the pressure of the coolant in the circulation channel 12 to further increase, and the flow rate of the coolant in the circulation channel 12 to further increase, thereby increasing the cooling efficiency of the housing 1. At the same time, the coolant in the circulation channel 12 enters the second channel 14 through the first channel 13 and pushes the baffle 20 further away from the second channel 14. Since the second slide rod 17 cannot move further closer to the limiting groove 33 at this time, the baffle 20 pushes the second connecting column 19 to overcome the elastic force of the second spring 21 and move into the first slide rod 16. The baffle 20 enters the second sliding groove 25, thereby connecting the through hole 15 with the second sliding groove 25. The coolant in the circulation channel 12 flows into the cooling chamber through the first channel 13 and the second channel 14, improving the heat dissipation efficiency of the housing 1, allowing the housing 1 to cool down quickly, and preventing the housing 1 from being in a high-temperature state for a long time, thus achieving the purpose of explosion prevention.

[0066] Working principle: Initially, under the action of the third spring 18 and the second spring 21, the baffle 20 is positioned at the end of the through hole 15 near the second channel 14, and the second slide rod 17 is positioned on the side of the second slide groove 25 near the inside of the housing 1. The heat dissipation components are in a folded state, with gaps between adjacent heat dissipation components and between the heat dissipation components located at the end of the relief groove 32 and the end of the relief groove 32. The water pump 23 has three operating power levels: the first level, the second level, and the third level. The operating power of the third level is greater than that of the second level, and the operating power of the second level is greater than that of the first level.

[0067] Opening the door 3 allows for maintenance of the electrical components inside the enclosure 1. Closing the door 3 allows the second sealing gasket 10 to be inserted into the second sealing groove, thereby sealing the inside of the enclosure 1 to prevent external gases or dust from entering and thus avoiding adverse effects on the electrical components inside the enclosure 1.

[0068] The electrical components inside enclosure 1 generate a lot of heat during operation, causing the temperature inside enclosure 1 to rise. Higher temperatures are not conducive to the operation of electrical components.

[0069] At this time, since the ends of the first heat sink 26 and the second heat sink 27 closest to the rotating shaft 31 are in contact with the inner wall of the relief groove 32, the temperature on the housing 1 is transferred to the outside through the first heat sink 26 and the second heat sink 27. The first heat sink 26 and the second heat sink 27 dissipate heat from the housing 1. When the outside temperature is low, the temperature inside the housing 1 is higher than the outside temperature, and the temperature difference between the inside and outside of the housing 1 is large, so the first heat sink 26 and the second heat sink 27 can dissipate heat from the housing 1 very well. When the outside temperature is high, the temperature difference between the inside and outside of the housing 1 is small, and the heat dissipation effect of the first heat sink 26 and the second heat sink 27 on the housing 1 becomes worse. Moreover, the higher the outside temperature, the worse the heat dissipation effect of the first heat sink 26 and the second heat sink 27 on the housing 1.

[0070] A temperature sensor measures the temperature inside the enclosure 1 and transmits the measurement value to the controller. The controller judges the received measurement value. When the measurement value is equal to or greater than a first preset value and less than a second preset value, the controller controls the water pump 23 and the cooler to start, with the water pump 23 operating at the first power level. The water pump 23 delivers the coolant in the container 2 to the circulation channel 12, where the coolant cools the enclosure 1. The coolant in the circulation channel 12 flows back to the container 2 through the end of the circulation channel 12 away from the water pump 23, where the cooler cools the coolant. The coolant circulates between the circulation channel 12 and the container 2, increasing the heat dissipation effect on the enclosure 1. At this time, the coolant in the circulation channel 12 enters the second channel 14 through the first channel 13, but the coolant cannot push the baffle 20 to move. At this time, if... Figure 13 As shown, the baffle 20 is in the first state, that is, the baffle 20 is at one end of the through hole 15 near the second channel 14.

[0071] If the temperature inside the housing 1 rises further, when the temperature inside the housing 1 is equal to or greater than the second preset value and less than the third preset value, the water pump 23 is made to operate at the second power level, which increases the pressure of the coolant in the circulation channel 12 and the flow rate of the coolant in the circulation channel 12, thereby improving the heat dissipation efficiency.

[0072] The pressure of the coolant in the circulation channel 12 on the baffle 20 increases. The coolant in the circulation channel 12 enters the second channel 14 through the first channel 13 and pushes the baffle 20 away from the second channel 14, gradually compressing the third spring 18. At this time, under the action of the second spring 21, the second connecting post 19 cannot move into the first sliding rod 16. The baffle 20, the first sliding rod 16, and the second sliding rod 17 move simultaneously, and the second sliding rod 17 pushes the rotating shaft 31 closer to the limiting groove 33. This causes the first heat sink 26 and the second heat sink 27 to rotate around the rotating shaft 31. The ends of the first heat sink 26 and the second heat sink 27 away from the rotating shaft 31 gradually move away from each other, and the sliding post 30 moves within the limiting groove 33. The two sliding posts 30 on the same heat dissipation assembly gradually move away from each other, and the heat dissipation assembly gradually unfolds. When the heat dissipation assembly is fully deployed, the ends of the first heat sink 26 and the adjacent second heat sink 27 abut against each other. The first heat sink 26 or the second heat sink 27 at the end of the relief groove 32 contacts the inner wall of the relief groove 32, thus forming a cooling chamber with the first heat sink 26, the second heat sink 27, and the inner wall of the relief groove 32. At this time, the heat insulation layer 29 is located outside the cooling chamber, isolating it from external high temperatures and preventing external heat from entering the housing 1. Figure 14 As shown, the baffle 20 is in the second state, that is, the baffle 20 is at the end of the through hole 15 away from the second channel 14.

[0073] If the temperature inside the housing 1 continues to rise, when the temperature inside the housing 1 is equal to or greater than the third preset value, the water pump 23 operates at the third power setting, further increasing the flow rate of the coolant in the circulation channel 12 and further improving the heat dissipation efficiency. Simultaneously, the pressure of the coolant in the circulation channel 12 further increases, and the coolant in the circulation channel 12 enters the through hole 15 through the first channel 13 and the second channel 14, pushing the baffle 20 further away from the second channel 14. At this time, the second slide rod 17 cannot move further closer to the limiting groove 33, and the baffle 20 pushes the second connecting post 19, causing the second connecting post 19 to overcome the elastic force of the second spring 21 and move into the first slide rod 16. The baffle 20 enters the second sliding groove 25, thereby connecting the through hole 15 with the second sliding groove 25. At this time, if... Figure 15 As shown, the through hole 15 is connected to the cooling cavity, and the baffle 20 is in the third state, that is, in the second slide groove 25.

[0074] The coolant in the circulation channel 12 flows into the cooling chamber through the first channel 13, the second channel 14, and the through hole 15. The coolant in the chamber dissipates heat from the casing 1, improving the heat dissipation efficiency and enabling the casing 1 to cool down quickly, preventing it from remaining at a high temperature for an extended period. The coolant in the cooling chamber flows back into the reservoir 2 through the drain hole 24, allowing the coolant to circulate between the circulation channel 12, the cooling chamber, and the reservoir 2, which further facilitates the rapid cooling of the casing 1.

[0075] Meanwhile, the insulation layer 29 is located on the outside of the cooling cavity, preventing external heat from being transferred into the cooling cavity, which helps to improve the cooling efficiency of the housing 1.

[0076] Example 2: This example is a further improvement based on Example 1. This example only describes the parts that are different from those in Example 1.

[0077] like Figure 4 , Figure 5 As shown, a pressure relief assembly is installed on the housing 1. The pressure relief assembly includes a sealing cover 4. A pressure relief hole 9 is provided on the top of the housing 1, and the sealing cover 4 is used to cover the pressure relief hole 9. Two first sliding grooves 7 are provided on the housing 1, and the two first sliding grooves 7 are symmetrically arranged about the pressure relief hole 9. A first connecting post 5 is elastically slidably disposed in each first sliding groove 7. The first connecting post 5 is fixedly connected to the sealing cover 4.

[0078] To prevent the first connecting post 5 from detaching from the first slide groove 7, a first limiting platform is fixedly provided at the upper end of the first slide groove 7, and a second limiting platform is fixedly connected to the lower end of the first connecting post 5. When the first connecting post 5 moves upward along the first slide groove 7, the second limiting platform abuts against the first limiting platform, thereby preventing the first connecting post 5 from detaching from the first slide groove 7 and thus limiting the sealing cover 4.

[0079] A first spring 6 is fitted onto the first connecting post 5. One end of the first spring 6 is fixedly connected to the first limiting platform, and the other end is fixedly connected to the second limiting platform. Under the action of the first spring 6, the sealing cover 4 blocks the pressure relief hole 9. As the temperature inside the chamber 1 rises, the gas pressure inside the chamber 1 gradually increases, causing the gas inside the chamber 1 to push the sealing cover 4 upward against the elastic force of the first spring 6, thus opening the pressure relief hole 9. The gas inside the chamber 1 flows out through the pressure relief hole 9, preventing the gas pressure inside the chamber 1 from becoming too high and achieving the purpose of explosion prevention.

[0080] The sealing cover 4 is fixedly connected to a first sealing gasket 8. A first sealing groove is provided on the housing 1 to mate with the first sealing gasket 8. The first sealing gasket 8 is inserted into the first sealing groove, increasing the sealing effect of the sealing cover 4 and preventing gas or dust from entering the housing 1 through the pressure relief hole 9. A receiving groove is provided on the housing 1 to accommodate the sealing cover 4. In its natural state, under the action of the first spring 6, the sealing cover 4 is in the receiving groove, the first sealing gasket 8 is inserted into the first sealing groove, and the sealing cover 4 seals the pressure relief hole 9.

[0081] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An explosion-proof and corrosion-resistant distribution box, characterized in that: The device includes a housing (1), a mounting plate (11), and heat dissipation components. A door (3) is provided on the front side of the housing (1). The mounting plate (11) is located inside the housing (1), and a circulation channel (12) is provided within the mounting plate (11), which communicates with a liquid container (2). A clearance groove (32) is provided on the outer surface of the housing (1), and multiple heat dissipation components are provided within the clearance groove (32). Each heat dissipation component includes a first heat sink (26) and a second heat sink (27). The first heat sink (26)... One end of the first heat sink (26) and one end of the second heat sink (27) are rotatably connected by a rotating shaft (31); the top and bottom walls of the relief groove (32) are provided with a second sliding groove (25) and a limiting groove (33), and a second sliding rod (17) is slidably arranged in the second sliding groove (25), and the rotating shaft (31) is connected between the two second sliding rods (17); the ends of the first heat sink (26) and the second heat sink (27) away from the second sliding rod (17) are both connected with a sliding column (30), and the sliding column (30) is movably arranged in the limiting groove (33); The second slide bar (17) moves toward or away from the limiting groove, and the rotating shaft (31) is set perpendicular to the second slide bar (17); The upper and lower parts of the box (1) are provided with second channels (14), and the box (1) is provided with a first channel (13) connecting the second channel (14) and the circulation channel (12); each second slide rod (17) is fixedly connected to two first slide rods (16), the first slide rods (16) are slidably disposed in the through hole (15), the through hole (15) is opened in the box (1), the through hole (15) connects to the second channel (14), and a baffle (20) is slidably disposed in the through hole (15); a third spring (18) is fixedly connected to the side of the baffle (20) away from the second channel (14), and the end of the third spring (18) away from the baffle (20) is fixedly connected to the end wall of the through hole (15); The first heat sink (26) and the second heat sink (27) are both provided with a heat insulation layer (29). When the first heat sink (26) and the second heat sink (27) are folded together, the heat insulation layer (29) on the first heat sink (26) and the heat insulation layer (29) on the second heat sink (27) are close to each other. When the temperature inside the housing (1) reaches a certain value, the water pump (23) starts; under the action of the third spring (18), the baffle (20) is at one end of the through hole (15) close to the second channel (14), and the coolant in the circulation channel (12) cannot enter the through hole (15); If the temperature inside the housing (1) rises further, the power of the water pump (23) increases, the baffle (20) overcomes the elastic force of the third spring (18) and slides into the through hole (15). The baffle (20), the first slide rod (16), and the second slide rod (17) move simultaneously. The second slide rod (17) pushes the rotating shaft (31) to move closer to the limiting groove (33). The first heat sink (26) or the second heat sink (27) located at the end of the relief groove (32) contacts the inner wall of the relief groove (32). The first heat sink (26), the second heat sink (27), and the inner wall of the relief groove (32) constitute a cooling cavity. The heat insulation layer (29) is located on the outside of the cooling cavity.

2. The explosion-proof and corrosion-resistant distribution box according to claim 1, characterized in that: The first slide rod (16) has a spring groove. The baffle (20) is fixedly connected to a second connecting post (19). The end of the second connecting post (19) away from the baffle (20) slides into the spring groove. The end of the second connecting post (19) located in the spring groove is fixedly connected to a protrusion that limits the second connecting post (19). A second spring (21) is provided in the spring groove. One end of the second spring (21) is connected to the protrusion, and the other end of the second spring (21) is fixedly connected to the end wall of the spring groove.

3. The explosion-proof and corrosion-resistant distribution box according to claim 1, characterized in that: Both the first heat sink (26) and the second heat sink (27) have elastic pads (28) installed at the ends away from the rotating shaft (31).

4. The explosion-proof and corrosion-resistant distribution box according to claim 1, characterized in that: The housing (1) is equipped with a pressure relief assembly, which includes a sealing cover (4). The top of the housing (1) is provided with a pressure relief hole (9). The sealing cover (4) is used to cover the pressure relief hole (9). The sealing cover (4) is elastically slidably connected to the housing (1).

5. The explosion-proof and corrosion-resistant distribution box according to claim 4, characterized in that: The housing (1) has two first sliding grooves (7). A first connecting post (5) is slidably arranged in the first sliding groove (7). The first connecting post (5) is fixedly connected to the sealing cover (4). A first spring (6) is arranged in the first sliding groove (7). One end of the first spring (6) is fixedly connected to the end wall of the first sliding groove (7), and the other end of the first spring (6) is fixedly connected to the first connecting post (5).

6. The explosion-proof and corrosion-resistant distribution box according to claim 5, characterized in that: The sealing cover (4) is equipped with a first sealing gasket (8), and the box body (1) is provided with a first sealing groove that cooperates with the first sealing gasket (8).

7. The explosion-proof and corrosion-resistant distribution box according to claim 1, characterized in that: A water pump (23) is installed inside the liquid container (2). The water inlet end of the water pump (23) is connected to a water inlet pipe (22), which extends into the bottom of the liquid container (2). One end of the circulation channel (12) is connected to the water outlet end of the water pump (23), and the other end of the circulation channel (12) is connected to the liquid container (2).

8. The explosion-proof and corrosion-resistant distribution box according to claim 1, characterized in that: A second sealing gasket (10) is installed on the door (3), and a second sealing groove that cooperates with the second sealing gasket (10) is installed on the body (1); when the door (3) is closed, the second sealing gasket (10) is inserted into the second sealing groove.

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