Anti-explosion and anti-corrosion distribution box

Abstract

The invention belongs to the technical field of distribution boxes, and relates to an anti-explosion and anti-corrosion distribution box. The heat dissipation box comprises a box body, a mounting plate and a heat dissipation assembly. A box door is arranged on the front side of the box body, the mounting plate is arranged on the box body, a circulating channel is formed in the mounting plate, and the circulating channel is communicated with the liquid container; a receding groove is formed in the outer side face of the box body, and a plurality of heat dissipation assemblies are arranged in the receding groove. Each heat dissipation assembly comprises a first heat dissipation sheet and a second heat dissipation sheet; the first cooling fin and the second cooling fin are rotationally connected through a rotating shaft; second sliding grooves and limiting grooves are formed in the top wall and the bottom wall of the receding groove correspondingly, and second sliding rods are arranged in the second sliding grooves in a sliding mode. When the temperature in the box body rises to a certain degree, the operation power of the water pump is increased, the heat dissipation assembly is far away from and unfolded, the first heat dissipation fins, the second heat dissipation fins and the inner wall of the receding groove form a cooling cavity, cooling liquid circularly flows among the circulation channel, the receding groove and the liquid container, the cooling efficiency of the box body is improved, and the temperature of the box body is rapidly reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of distribution boxes and relates to an explosion-proof and corrosion-proof distribution box. Background Art

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

[0003] During the operation of electrical equipment in the explosion-proof and corrosion-proof distribution box, heat will be generated. If the temperature is too high, it will affect the normal operation of electrical components in the distribution box, and then affect the operation of the smart grid. And in a flammable and explosive environment, it may cause danger, such as igniting surrounding flammable gases or dust. Therefore, temperature control is an important guarantee for the safe operation of explosion-proof distribution boxes.

[0004] Currently, generally, a fan or a heat sink is set to cool the distribution box. For example, in the patent document with the publication number CN215771971U, a combined cooling explosion-proof and corrosion-proof electrical control box is disclosed, which includes a box body and a box cover. The box cover includes an upper cover and a lower cover. A partition is provided inside the box body, and the partition is fixedly arranged on the inner wall of the box body. The partition divides the inside of the box body into an upper cavity and a lower cavity. An electrical component mounting rack is provided in the upper cavity, and a fan mounting rack is provided in the lower cavity. A groove is provided on the wall of the box body opening and a sealing strip is provided in the groove. A wiring terminal is provided under the box body, and a wiring terminal fixing hole is provided at the bottom of the lower cavity to cooperate with the wiring terminal. This invention cools through a fan to avoid potential safety hazards caused by overheating.

[0005] The above electrical control box has the following problems during use. When the external environmental temperature is relatively high, the heat dissipation effect is limited, making the temperature of the electrical control box prone to rise, which is not conducive to safe operation.

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

[0007] To solve the problems in the background art, the present invention proposes an explosion-proof and corrosion-proof distribution box.

[0008] To achieve the above object, the technical solution adopted by the present invention is as follows: An explosion-proof and anti-corrosion distribution box, comprising a box body, a mounting plate and a heat dissipation component; a box door is arranged on the front side of the box body, the mounting plate is arranged inside the box body, a circulation channel is opened in the mounting plate, and the circulation channel is communicated with a liquid storage device; a relief groove is opened on the outer side surface of the box body, and a plurality of heat dissipation components are arranged in the relief groove; each heat dissipation component includes a first heat sink and a second heat sink; the first heat sink and the second heat sink are rotationally connected through a rotating shaft; second sliding grooves and limiting grooves are opened on the top wall and the bottom wall of the relief groove, second sliding rods are slidably arranged in the second sliding grooves, and the rotating shaft is connected between the two second sliding rods; sliding columns are connected to the ends of the first heat sink and the second heat sink far away from the second sliding rods, and the sliding columns are movably arranged in the limiting grooves.

[0009] Further, a second channel is opened in the box body, a first channel communicating the second channel and the circulation channel is opened in the box body, and a through hole communicating the second channel and the relief groove is opened in the box body; a baffle is hermetically slidably arranged in the through hole, and the second sliding rod is fixedly connected with a first sliding rod; the baffle and the first sliding rod are elastically connected.

[0010] Further, a spring groove is opened on the first sliding rod, the baffle is fixedly connected with a second connecting column, and the end of the second connecting column far away from the baffle slides into the spring groove; a convex block for limiting the second connecting column is fixedly connected to the end of the second connecting column located in the spring groove; a second spring is arranged in the spring groove, one end of the second spring is connected with the convex block, and the other end of the second spring is fixedly connected with the end wall of the spring groove.

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

[0012] Further, elastic pads are installed at the ends of the first heat sink and the second heat sink far away from the rotating shaft.

[0013] When the heat dissipation component is unfolded, the elastic pad is between the ends of the first heat sink and the second heat sink, so that the first heat sink and the second heat sink are in sealed contact.

[0014] Further, heat insulation layers are arranged on both the first heat sink and the second heat sink. When the first heat sink and the second heat sink are folded together, the heat insulation layers on the first heat sink and the second heat sink are close to each other.

[0015] When the heat dissipation component is unfolded, the heat insulation layer is on the outer side of the cooling cavity, preventing external heat from entering the box body.

[0016] Furthermore, a pressure relief assembly is installed on the box body, and the pressure relief assembly includes a sealing cover. A pressure relief hole is opened on the top of the box body, and the sealing cover is used to cover the pressure relief hole. The sealing cover is elastically slidably connected to the box body.

[0017] Furthermore, two first sliding grooves are provided on the box body, a first connecting column is slidably arranged in the first sliding groove, the first connecting column is fixedly connected to the sealing cover, a first spring is provided 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 column.

[0018] Furthermore, a first sealing gasket is installed on the sealing cover, and a first sealing groove cooperating with the first sealing gasket is opened on the box body.

[0019] Furthermore, a water pump is installed in the liquid container, the water inlet end of the water pump is connected to a water inlet pipe, and the water inlet pipe 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 in the liquid container into the circulation channel. The coolant in the circulation channel cools the mounting plate, and then cools the box body. The coolant in the circulation channel flows back to the liquid container through the end away from the water pump, and then the coolant circulates between the liquid container and the circulation channel, which is beneficial to improve the cooling efficiency of the box body.

[0021] Furthermore, a second sealing gasket is installed on the box door, and a second sealing groove matched with the second sealing gasket is installed on the box body; when the box 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 advantages: when the outside temperature is low, the first and second heat sinks dissipate heat from the box body. When the water pump is started, the coolant circulates between the circulation channel and the liquid container, further cooling the box body.

[0023] When the outside temperature is high, the temperature difference between the inside and outside of the box is small, so that the heat dissipation effect of the first heat sink and the second heat sink is limited, which further increases the temperature in the box, increases the operating power of the water pump, and increases the flow rate of the coolant in the circulation channel, thereby improving the heat dissipation efficiency. At the same time, the pressure of the coolant in the circulation channel increases and pushes the baffle to move. The second slide rod pushes the rotating shaft to move, thereby gradually expanding the heat dissipation component, so that the first heat sink, the second heat sink and the inner wall of the give way groove form a cooling cavity. The heat insulation layer is located outside the cooling cavity, which plays a heat insulation role and prevents external heat from being transferred into the box.

[0024] When the temperature inside the box continues to rise, the operating power of the water pump is further increased, so that the pressure of the coolant in the circulation channel becomes further larger, causing the baffle plate to enter the second chute, and then making the through hole communicate with the cooling cavity. The coolant enters the cooling cavity, and the coolant circulates among the circulation channel, the cooling cavity and the liquid storage device, improving the cooling efficiency of the box and rapidly reducing the temperature of the box. Brief Description of the Drawings

[0025] Figure 1 is the overall structural schematic diagram of the present invention;

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

[0027] Figure 3 in the present invention Figure 2 is the enlarged schematic view of part A;

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

[0029] Figure 5 in the present invention Figure 4 is the enlarged view of part B;

[0030] Figure 6 is the structural schematic diagram of the mounting plate in the present invention;

[0031] Figure 7 in the present invention Figure 6 is the enlarged schematic view of part C;

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

[0033] Figure 9 in the present invention Figure 8 is the enlarged view of part D;

[0034] Figure 10 is the cross-sectional view of the present invention in the third direction;

[0035] Figure 11 in the present invention Figure 10 is the enlarged view of part E;

[0036] Figure 12 is the structural schematic diagram of the heat dissipation component in the present invention;

[0037] Figure 13 is the simplified diagram of the first state of the baffle plate in the present invention;

[0038] Figure 14 is the simplified diagram of the second state of the baffle plate in the present invention;

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

[0040] Figure 16 It is a simplified diagram of the state after multiple heat dissipation components in the present invention are unfolded.

[0041] In the figure: 1, box body; 2, liquid storage container; 3, box door; 4, sealing cover; 5, first connecting column; 6, first spring; 7, first sliding 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 sliding rod; 17, second sliding rod; 18, third spring; 19, second connecting column; 20, baffle; 21, second spring; 22, water inlet pipe; 23, water pump; 24, drain hole; 25, second sliding groove; 26, first heat sink; 27, second heat sink; 28, elastic pad; 29, heat insulation layer; 30, sliding column; 31, rotating shaft; 32, relief groove; 33, limiting groove. Specific embodiments

[0042] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0043] Such as Figures 1 - 16 shown in an explosion-proof and anti-corrosion distribution box.

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

[0045] A box door 3 is installed on the front side of the box body 1. A second sealing gasket 10 is installed on the box door 3, and a second sealing groove is provided on the box body 1. When the box door 3 is closed, the second sealing gasket 10 is inserted into the second sealing groove, thereby sealing the inside of the box body 1, preventing external gas or dust from entering the box body 1, avoiding adverse effects on the electrical components inside the box body 1 by the gas or dust, and also avoiding internal corrosion of the box body 1 by the gas or dust, playing a role in anti-corrosion and explosion isolation.

[0046] An anti-corrosion material is coated on the outer surface of the box body 1 and the box door 3, thereby preventing the outer surface of the box body 1 from being corroded.

[0047] A mounting plate 11 is provided inside the box body 1. In this embodiment, the mounting plate 11 is installed on the side of the box body 1 away from the box door 3. Electrical components are installed on the mounting plate 11.

[0048] A circulation channel 12 is formed inside the mounting plate 11. The circulation channel 12 has a bent structure, which increases the heat dissipation area and improves the heat dissipation efficiency. A liquid container 2 is fixedly connected to the lower end of the box body 1. A water pump 23 is arranged inside the liquid container 2. The water outlet end of the water pump 23 is connected to one end of the circulation channel 12, and the water inlet end of the water pump 23 is connected to a water inlet pipe 22, and the water inlet pipe 22 extends into the bottom of the liquid container 2. The other end of the circulation channel 12 communicates with the liquid container 2. A refrigerator is installed on the liquid container 2. The liquid container 2 is filled with a coolant. The water pump 23 pumps the coolant in the liquid container 2 into the circulation channel 12, and the coolant in the circulation channel 12 cools the mounting plate 11, and then cools the electrical components in the box body 1 to ensure the normal operation of the electrical components. The coolant in the circulation channel 12 flows into the liquid container 2 from the end far away from the water pump 23 for circulating. The refrigerator cools the coolant in the liquid container 2.

[0049] Relieving grooves 32 are formed on the left and right sides and the rear side of the box body 1. A plurality of heat dissipation components are arranged in each relieving groove 32.

[0050] Second sliding grooves 25 and limiting grooves 33 are formed on the top wall and the bottom wall of the relieving groove 32.

[0051] A second sliding rod 17 is slidably arranged in the second sliding groove 25. The length direction of the limiting groove 33 is parallel to the length direction of the second sliding rod 17. The second sliding rod 17 moves towards or away from the limiting groove. A plurality of rotating shafts 31 are connected between the two second sliding rods 17 in the same relieving groove 32. The rotating shafts 31 are perpendicular to the second sliding rods 17. Each rotating shaft 31 is provided with a heat dissipation component.

[0052] The heat dissipation component includes a first heat dissipation fin 26 and a second heat dissipation fin 27. One ends of the first heat dissipation fin 26 and the second heat dissipation fin 27 are rotatably connected to the rotating shaft 31. One side of the ends of the first heat dissipation fin 26 and the second heat dissipation fin 27 is rotatably connected to the rotating shaft 31. The ends of the first heat dissipation fin 26 and the second heat dissipation fin 27 far away from the rotating shaft 31 are both connected with sliding columns 30, and the sliding columns 30 are arranged parallel to the rotating shaft 31. The sliding columns 30 are movably arranged in the limiting grooves 33.

[0053] The second slide bar 17 slides in the clearance groove 32 toward the limit groove 33. The second slide bar 17 pushes the rotating shaft 31 to move toward the limit groove 33, thereby causing the first heat sink 26 and the second heat sink 27 to rotate around the corresponding rotating shaft 31. The first heat sink 26 and the second heat sink 27 gradually move away from the end of the rotating shaft 31. The sliding column 30 slides along the limit groove 33, and the heat dissipation assembly gradually unfolds. When the heat dissipation assembly unfolds, the end of the first heat sink 26 and the end of the adjacent second heat sink 27 abut against each other. The first heat sink 26 or the second heat sink 27 located at the end of the clearance groove 32 contacts the inner wall of the clearance groove 32. At this time, the first heat sink 26, the second heat sink 27 and the inner wall of the clearance groove 32 constitute a cooling chamber.

[0054] A thermal insulation layer 29 is installed on each of the first and second heat sinks 26, 27. When the heat sink assembly is folded—that is, when the first and second heat sinks 26, 27 within the same heat sink assembly are stacked together—the thermal insulation layer 29 on the first and second heat sinks 27 abut against each other. At this point, the ends of the first and second heat sinks 26, 27 near the rotation axis 31 are in contact with the housing 1. Heat within the housing 1 can be transferred to the outside world through the first and second heat sinks 26, 27, dissipating heat and cooling the housing 1.

[0055] Elastic pads 28 are fixedly mounted on the ends of the first and second heat sinks 26, 27 away from the rotating shaft 31. When the heat sink assembly is deployed, the end of the first heat sink 26 abuts against the end of the adjacent second heat sink 27, and the elastic pads 28 are positioned between the first and second heat sinks 26, 27, ensuring sealed contact between the first and second heat sinks 26, 27.

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

[0057] When the heat dissipation assembly is unfolded, the first heat sink 26, the second heat sink 27, and the inner wall of the clearance groove 32 form a cooling cavity. The coolant in the circulation channel 12 flows into the cooling cavity, improving the heat dissipation effect on the housing 1. Furthermore, the thermal insulation layer 29 is located outside the cooling cavity, preventing external heat from being transferred into the cooling cavity.

[0058] A drainage hole 24 is provided on the bottom wall of the second chute 25 at the bottom of the clearance groove 32 . The drainage hole 24 is communicated with the liquid container 2 , and the coolant entering the cooling cavity flows into the liquid container 2 .

[0059] A second channel 14 is provided at both the upper and lower parts of the box body 1 , and a first channel 13 communicating with the second channel 14 and the circulation channel 12 is provided on the box body 1 .

[0060] Each second slide bar 17 is fixedly connected to two first slide bars 16. The first slide bars 16 are slidably disposed in a through hole 15. The through hole 15 is provided in the box body 1. The through hole 15 communicates with the second slide groove 25 and the second channel 14, and the through hole 15 extends into the clearance groove 32. A baffle 20 is slidably disposed in the through hole 15 in a sealed manner.

[0061] A third spring 18 is fixedly connected to one side of the baffle 20 away from the second channel 14 . One 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 slide bar 16 are elastically and slidably connected. Specifically, a spring slot is defined in the first slide bar 16, and a second connecting post 19 is fixedly connected to the baffle 20. The end of the second connecting post 19, distal from the baffle 20, slides into the spring slot. A bump is fixedly connected to the end of the second connecting post 19 located within the spring slot. The bump acts as a limiter on the second connecting post 19, preventing it from falling out of the spring slot. A second spring 21 is disposed within the spring slot, one end of the second spring 21 being connected to the bump and the other end fixedly connected to the end wall of the spring slot.

[0063] A temperature sensor and controller are installed within the housing 1. The temperature sensor, cooler, and water pump 23 are all electrically connected to the controller. The temperature sensor detects the temperature within the housing 1. When the temperature reaches a certain level, the water pump 23 activates. The water pump 23 draws coolant from the reservoir 2 into the circulation channel 12, which cools the housing 1. At this point, the third spring 18 forces the baffle 20 to rest on the end of the through-hole 15 closest to 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 further rises, the power of the water pump 23 increases, increasing the pressure of the coolant in the circulation channel 12. The baffle 20 is subjected to the increased pressure of the coolant, and overcomes the elastic force of the third spring 18 to slide into the through hole 15. At this time, under the action of the second spring 21, the second connecting column 19 cannot move into the first slide bar 16. The baffle 20, the first slide bar 16, and the second slide bar 17 move simultaneously, and the second slide bar 17 pushes the rotation axis 31 to move closer to the limit slot 33. This causes the first heat sink 26 and the second heat sink 27 to rotate around the rotation axis 31, and the ends of the first heat sink 26 and the second heat sink 27 away from the rotation axis 31 gradually move away. The sliding column 30 moves within the limit slot 33, and the two sliding columns 30 on the same heat sink assembly gradually move away from each other, and the heat sink assembly gradually expands. When the heat dissipation assembly is fully extended, 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 clearance groove 32 abuts against the inner wall of the clearance groove 32, thereby forming a cooling cavity formed by the first heat sink 26, the second heat sink 27, and the inner wall of the clearance groove 32. At this time, the thermal insulation layer 29 is located outside the cooling cavity, isolating the high temperature outside and preventing the outside heat from entering the box body 1.

[0065] If the temperature inside the housing 1 continues to rise, the operating power of the water pump 23 increases further, further increasing the pressure of the coolant in the circulation channel 12 and the flow rate of the coolant in the circulation channel 12, thereby increasing the cooling efficiency of the housing 1. Simultaneously, 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 bar 17 cannot move closer to the limit slot 33 at this point, the baffle 20 pushes the second connecting post 19, causing it to overcome the elastic force of the second spring 21 and move toward the first slide bar 16. The baffle 20 enters the second chute 25, thereby connecting the through hole 15 with the second chute 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, rapidly cooling the housing 1, and preventing the housing 1 from being in a high temperature state for a long time, thereby 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 located at one end of the through hole 15 close to the second channel 14, and the second slide bar 17 is located at the side of the second slide groove 25 close to the inside of the box body 1. The heat dissipation component is in a folded state, and there is a gap between adjacent heat dissipation components and between the heat dissipation component at the end of the give way groove 32 and the end of the give way groove 32. The operating power of the water pump 23 is set to three gears, namely the first gear, the second gear, and the third gear. The operating power of the third gear is greater than the operating power of the second gear, and the operating power of the second gear is greater than the operating power of the first gear.

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

[0068] During the operation of the electrical components inside the box body 1, a large amount of heat is generated, causing the temperature inside the box body 1 to rise. A relatively high temperature is not conducive to the operation of the electrical components.

[0069] At this time, since one ends of the first heat sink 26 and the second heat sink 27 close to the rotating shaft 31 are both in contact with the inner wall of the relief groove 32, the temperature on the box body 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 box body 1. When the outside temperature is relatively low, the temperature inside the box body 1 is greater than the outside temperature and the temperature difference between the inside and outside of the box body 1 is relatively large. The first heat sink 26 and the second heat sink 27 can dissipate heat from the box body 1 well. When the outside temperature is relatively high, the temperature difference between the inside and outside of the box body 1 is relatively small, and the heat dissipation effect of the first heat sink 26 and the second heat sink 27 on the box body 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 box body 1.

[0070] The temperature sensor measures the temperature inside the box body 1 and transmits the measured value to the controller. The controller judges the received measured value. When the measured value is equal to or greater than the first preset value and less than the second preset value, the controller controls the water pump 23 and the cooler to start, and the water pump 23 operates at the power of the first gear. The water pump 23 transports the coolant in the liquid storage device 2 into the circulation channel 12, and the coolant in the circulation channel 12 cools the box body 1. The coolant in the circulation channel 12 flows back to the liquid storage device 2 through the end of the circulation channel 12 far from the water pump 23, and the cooler cools the coolant in the liquid storage device 2. The coolant circulates between the circulation channel 12 and the liquid storage device 2, increasing the heat dissipation effect on the box body 1. At this time, the coolant in the circulation channel 12 enters the second channel 14 through the first channel 13, but at this time the coolant cannot push the baffle 20 to move. At this time, as Figure 13 shown, the baffle 20 is in the first state, that is, the baffle 20 is at the end of the through hole 15 close to the second channel 14.

[0071] If the temperature inside the box body 1 further rises, when the temperature inside the box body 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 power of the second gear, so that the pressure of the coolant in the circulation channel 12 increases and the flow rate of the coolant in the circulation channel 12 increases, improving the heat dissipation efficiency.

[0072] The coolant in the circulation channel 12 exerts increasing pressure on the baffle 20. The coolant in the circulation channel 12 enters the second channel 14 through the first channel 13, pushing the baffle 20 away from the second channel 14, and the third spring 18 is gradually compressed. At this point, under the action of the second spring 21, the second connecting column 19 cannot move toward the first slide bar 16. The baffle 20, the first slide bar 16, and the second slide bar 17 move simultaneously, and the second slide bar 17 pushes the rotation axis 31 toward the limit slot 33. This causes the first and second heat sinks 26 and 27 to rotate around the rotation axis 31, gradually moving away from the ends of the first and second heat sinks 26 and 27 away from the rotation axis 31. The sliding column 30 moves within the limit slot 33, and the two sliding columns 30 on the same heat sink assembly gradually move away from each other, gradually expanding the heat sink assembly. When the heat dissipation assembly is fully extended, the first heat sink 26 and the end of 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 clearance groove 32 abuts against the inner wall of the clearance groove 32, so that the first heat sink 26, the second heat sink 27 and the inner wall of the clearance groove 32 form a cooling cavity. At this time, the heat insulation layer 29 is located outside the cooling cavity, isolating the high temperature from the outside and preventing the outside heat from entering the box body 1. At this time, if 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 gear power, so that the flow rate of the coolant in the circulation channel 12 is further increased, and the heat dissipation efficiency is further improved. At the same time, the pressure of the coolant in the circulation channel 12 is further increased, and the coolant in the circulation channel 12 enters the through hole 15 through the first channel 13 and the second channel 14 and pushes the baffle 20 to move further away from the second channel 14. Since at this time, the second slide bar 17 cannot move further close to the limit groove 33, the baffle 20 pushes the second connecting column 19 so that the second connecting column 19 overcomes the elastic force of the second spring 21 and moves toward the first slide bar 16. The baffle 20 enters the second slide groove 25, thereby connecting the through hole 15 with the second slide groove 25. At this time, Figure 15 As shown, the through hole 15 is communicated with the cooling cavity, and the baffle 20 is in the third state, that is, in the second sliding 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 cooling chamber dissipates heat from the housing 1, improving the heat dissipation efficiency of the housing 1, rapidly cooling the housing 1, and preventing the housing 1 from being in a high temperature state for a long time. The coolant in the cooling chamber flows back into the liquid container 2 through the drain hole 24, so that the coolant circulates between the circulation channel 12, the cooling chamber, and the liquid container 2, which is conducive to rapidly cooling the housing 1.

[0075] Meanwhile, the heat insulation layer 29 is located outside the cooling cavity, preventing external heat from being transferred into the cooling cavity, which is beneficial to improving the cooling efficiency of the box body 1.

[0076] Embodiment 2: This embodiment is a further improvement based on Embodiment 1. Only the differences from Embodiment 1 will be introduced in this embodiment.

[0077] As Figure 4 、 Figure 5 shown, a pressure relief component is installed on the box body 1. The pressure relief component includes a sealing cover 4. A pressure relief hole 9 is provided at the top of the box body 1, and the sealing cover 4 is used to block the pressure relief hole 9. Two first sliding grooves 7 are provided on the box body 1, and the two first sliding grooves 7 are symmetrically arranged with respect to the pressure relief hole 9. A first connecting column 5 is elastically slidably arranged in each first sliding groove 7. The first connecting column 5 is fixedly connected to the sealing cover 4.

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

[0079] A first spring 6 is sleeved on the first connecting column 5. One end of the first spring 6 is fixedly connected to the first limiting platform, and the other end of the first spring 6 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 box body 1 rises, the air pressure inside the box body 1 gradually increases, causing the gas inside the box body 1 to push the sealing cover 4 to move upward against the elastic force of the first spring 6, opening the pressure relief hole 9, and allowing the gas inside the box body 1 to flow out through the pressure relief hole 9, preventing the air pressure inside the box body 1 from being too high and achieving the purpose of explosion prevention.

[0080] The sealing cover 4 is fixedly connected with a first sealing gasket 8. A first sealing groove cooperating with the first sealing gasket 8 is provided on the box body 1. The first sealing gasket 8 is inserted into the first sealing groove to enhance the sealing effect of the sealing cover 4 and prevent gas or dust from entering the box body 1 through the pressure relief hole 9. A receiving groove for accommodating the sealing cover 4 is provided on the box body 1. In the natural state, under the action of the first spring 6, the sealing cover 4 is located in the receiving groove, the first sealing gasket 8 is inserted into the first sealing groove, and the sealing cover 4 blocks 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 perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An explosion-proof and anti-corrosion distribution box, characterized in that: The invention comprises a box body (1), a mounting plate (11) and a heat dissipation assembly; a box door (3) is provided on the front side of the box body (1); the mounting plate (11) is provided in the box body (1); a circulation channel (12) is provided in the mounting plate (11); the circulation channel (12) is communicated with the liquid container (2); a clearance groove (32) is provided on the outer surface of the box body (1); a plurality of heat dissipation assemblies are provided in the clearance groove (32); each of the heat dissipation assemblies comprises a first heat dissipation fin (26) and a second heat dissipation fin (27); the first heat dissipation fin ( 26) and the second heat sink (27) are rotatably connected via a rotating shaft (31); a second slide groove (25) and a limiting groove (33) are provided on the top wall and the bottom wall of the giving way groove (32); a second slide rod (17) is slidably provided in the second slide groove (25), and the rotating shaft (31) is connected between the two second slide rods (17); the first heat sink (26) and the second heat sink (27) are both connected to a sliding column (30) at one end away from the second slide rod (17), and the sliding column (30) is movably provided in the limiting groove (33).

2. The explosion-proof and anti-corrosion distribution box according to claim 1, wherein: A second channel (14) is provided in the box body (1), a first channel (13) communicating with the second channel (14) and the circulation channel (12) is provided in the box body (1), and a through hole (15) communicating with the second channel (14) and the clearance groove (32) is provided in the box body (1); a baffle (20) is provided in a sealed and sliding manner in the through hole (15), and the second slide rod (17) is fixedly connected to the first slide rod (16); the baffle (20) and the first slide rod (16) are elastically connected.

3. The explosion-proof and anti-corrosion distribution box according to claim 2, wherein: A spring groove is provided on the first slide bar (16), the baffle (20) is fixedly connected to a second connecting column (19), and one end of the second connecting column (19) away from the baffle (20) slides into the spring groove; one end of the second connecting column (19) located in the spring groove is fixedly connected to a protrusion for limiting the second connecting column (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; The baffle (20) is fixedly connected to a third spring (18), and the other end of the third spring (18) is fixedly connected to the end wall of the through hole (15).

4. The explosion-proof and corrosion-proof distribution box according to claim 1, wherein: An elastic pad (28) is installed on one end of the first heat sink (26) and the second heat sink (27) away from the rotating shaft (31).

5. The explosion-proof and anti-corrosion distribution box according to claim 1, characterized in that: 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.

6. The explosion-proof and anti-corrosion distribution box according to claim 1, characterized in that: A pressure relief assembly is installed on the box body (1), and the pressure relief assembly includes a sealing cover (4). A pressure relief hole (9) is opened on the top of the box body (1). The sealing cover (4) is used to cover the pressure relief hole (9). The sealing cover (4) is elastically slidably connected to the box body (1).

7. The explosion-proof and corrosion-proof distribution box according to claim 6, wherein: Two first sliding grooves (7) are formed in the box body (1), a first connecting column (5) is slidably arranged in the first sliding groove (7), the first connecting column (5) is fixedly connected with 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 with the end wall of the first sliding groove (7), and the other end of the first spring (6) is fixedly connected with the first connecting column (5).

8. The explosion-proof and anti-corrosion distribution box according to claim 7, characterized in that: A first sealing gasket (8) is installed on the sealing cover (4), and a first sealing groove matched with the first sealing gasket (8) is formed in the box body (1).

9. The explosion-proof and anti-corrosion distribution box according to claim 1, wherein: A water pump (23) is installed in the liquid storage container (2), a water inlet pipe (22) is connected to the water inlet end of the water pump (23), and the water inlet pipe (22) extends to the bottom of the liquid storage container (2); one end of the circulation channel (12) is communicated with the water outlet end of the water pump (23), and the other end of the circulation channel (12) is communicated with the liquid storage container (2).

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

Images