Power distribution device

Abstract

The invention discloses a power distribution device, and belongs to the technical field of power distribution equipment. An electric power distribution device comprises a cabinet body of a sealed structure, the cabinet body comprises an outer shell and an inner shell located on the inner side of the outer shell, an interlayer is arranged between the outer shell and the inner shell, the interlayer is filled with a refrigerant, a heat dissipation frame is further arranged in the interlayer, the heat dissipation frame comprises a heat conduction rod, and the heat conduction rod is connected with the heat conduction rod. The two ends of the heat conduction rod are connected with the outer shell and the inner shell respectively, the heat dissipation frame further comprises a first conveying frame and a second conveying frame which are connected with the heat conduction rod, the heat conduction rod, the first conveying frame and the second conveying frame are all of hollow structures, and the heat conduction rod, the first conveying frame and the second conveying frame are filled with refrigerants. The first conveying frame and the second conveying frame communicate with the inlet end and the outlet end of the driving box correspondingly. The power distribution cabinet has the advantages that dustproof and heat dissipation effects are both considered, and electrical components in the cabinet body are prevented from being affected with damp.

Description

Technical Field

[0001] The present invention relates to the technical field of power distribution equipment, and in particular to a power distribution device. Background Art

[0002] The distribution cabinet is divided into power distribution cabinet, lighting distribution cabinet and metering cabinet. It is the final equipment of the power distribution system. The distribution cabinet is a device used to distribute and control electric energy in the power system. It is usually composed of multiple electrical components and is mainly used to receive, distribute and protect electricity. The distribution cabinet is widely used in different places such as industry, commerce and residence.

[0003] Since there are many switches and instruments installed in the power distribution cabinet, most of the power distribution cabinets have certain technical requirements for heat dissipation during use. At the same time, due to the maintenance and warranty needs of the above switches and instruments, the electrical cabinet is also required to have a certain dustproof effect during use. However, the power distribution cabinet in the prior art generally uses air cooling to dissipate heat, and the cooling fan is installed on the side wall of the power distribution cabinet to discharge the hot air inside the power distribution cabinet to the outside of the cabinet. Under this heat dissipation method, when considering the dustproof effect, dustproof nets are often installed at the air inlet and outlet of the cooling fan.

[0004] However, the dustproof effect of the dustproof net is inversely proportional to the ventilation effect. If you want to have a better dustproof effect, the ventilation effect is not ideal, which will affect the heat dissipation effect of the distribution cabinet, and vice versa. Therefore, the distribution cabinet in the prior art often cannot take both heat dissipation and dustproof problems into account. Therefore, this application proposes a power distribution device for the above problem. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that it is difficult to achieve both heat dissipation and dust prevention effects in the power distribution cabinet in the prior art, and to propose a power distribution device.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: An electric power distribution device comprises a cabinet with a sealed structure, wherein the cabinet comprises an outer shell and an inner shell located inside the outer shell, an interlayer is arranged between the outer shell and the inner shell, and a refrigerant is filled inside the interlayer.

[0007] Furthermore, a heat sink is provided inside the interlayer, and the heat sink comprises a heat conducting rod, and two ends of the heat conducting rod are respectively connected to the outer shell and the inner shell.

[0008] Furthermore, the heat dissipation rack also includes a first conveying frame and a second conveying frame connected to the heat-conducting rod, and the heat-conducting rod, the first conveying frame and the second conveying frame are all hollow structures, and the heat-conducting rod, the first conveying frame and the second conveying frame are filled with refrigerant, and the first conveying frame and the second conveying frame are respectively connected to the inlet end and the outlet end of the driving box.

[0009] Furthermore, the heat-conducting rod includes an upper heat-conducting tube connected to the outer shell and a lower heat-conducting tube connected to the inner shell, an upper heat-conducting hole is opened on the side wall of the upper heat-conducting tube, a lower heat-conducting hole is opened on the side wall of the lower heat-conducting tube, the upper heat-conducting tube is connected to the first conveying frame, and the lower heat-conducting tube is connected to the second conveying frame.

[0010] Furthermore, the driving box includes cooling fins, cooling pipes, and a circulation pump. The cooling pipes run through the cooling fins. One end of the cooling pipe is connected to the first conveying frame through the circulation pump, and the other end of the cooling pipe is connected to the second conveying frame.

[0011] Furthermore, it also includes a flow guide frame arranged at the bottom of the cabinet, and the flow guide frame includes a water delivery rod for absorbing water vapor in the internal air of the cabinet.

[0012] Furthermore, the flow guide frame includes a moisture absorption box located at the bottom of the cabinet, a moisture absorption hole is arranged on the top of the moisture absorption box, and a water delivery rod is arranged inside the moisture absorption hole.

[0013] Furthermore, the water delivery rod includes a volatile sheet, a short rod, and a long rod. The upper part of the short rod is located in the moisture absorption hole, the lower part of the short rod is connected to the long rod, and one end of the long rod away from the short rod is connected to the volatile sheet. The volatile sheet is located outside the cabinet.

[0014] Furthermore, the volatile sheet is attached to the heat dissipation fins.

[0015] Furthermore, the guide frame also includes a moisture absorption tube having a shape corresponding to the short rod and the long rod, and the short rod and the long rod are located on the inner side of the moisture absorption tube.

[0016] Compared with the prior art, the present invention provides a power distribution device having the following beneficial effects: The present invention provides an electric power distribution device. When in use, a cabinet with a sealed structure can effectively prevent external dust from entering the interior of the cabinet. At the same time, the heat emitted by the electrical components inside the cabinet is transferred to the refrigerant through the inner shell, and then transferred to the outer shell by the refrigerant. The outer shell dissipates the heat to the external environment, thereby dissipating the heat of the entire distribution cabinet. Compared with the prior art, there is no need to open a structure such as a ventilation window on the cabinet, thereby achieving the purpose of good dust prevention and good heat dissipation effect.

[0017] Other advantages, objectives and features of the present invention will be described in part in the following description; and in part, will be apparent to those skilled in the art based on an examination of the following; or, may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the cabinet of the present invention; Figure 3 It is a schematic front view of the sandwich structure of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the structure enlargement of part A; Figure 5 It is a schematic cross-sectional view of the heat-conducting rod structure of the present invention in the main viewing direction; Figure 6 It is a cross-sectional schematic diagram of the heat-conducting rod structure of the present invention when viewed from the right side; Figure 7 It is a three-dimensional schematic diagram of the heat-conducting frame structure of the present invention; Figure 8 For the present invention Figure 7 A schematic diagram of the structure of part B in the middle is enlarged; Fig. 9 It is a three-dimensional schematic diagram of the guide frame structure of the present invention; Fig.10 For the present invention Fig. 9 The enlarged schematic diagram of the structure of part C in the middle; Fig.11 It is a three-dimensional schematic diagram of the heat dissipation fin structure of the present invention; Fig.12 It is a right side schematic diagram of the guide frame structure of the present invention; Fig.13 It is a three-dimensional schematic diagram of the water delivery rod structure of the present invention; Fig.14 It is a schematic front view of the water delivery rod structure of the present invention.

[0019] In the figure: 1. Cabinet; 101. Outer shell; 102. Inner shell; 103. Interlayer; 2. Cabinet door; 3. Drive box; 301. Heat dissipation fins; 302. Heat dissipation pipe; 303. Circulation pump; 304. Cooling fan; 4. Heat dissipation rack; 401. Heat conduction rod; 402. Upper heat conduction pipe; 403. Lower heat conduction pipe; 404. Upper heat conduction hole; 405. Lower heat conduction hole; 406. First conveying frame; 407. Second conveying frame; 408. Insulation layer; 5. Guide frame; 501. Moisture absorption box; 502. Moisture absorption hole; 503. Moisture absorption pipe; 504. Water delivery rod; 505. Volatile sheet; 506. Short rod; 507. Long rod. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Example 1 Reference Figure 1-8 The present invention discloses an electric power distribution device, comprising a cabinet 1 with a sealed structure. The cabinet 1 in the present application takes a rectangular distribution cabinet as an example. The various parts of the cabinet 1 are sealed and connected. A cabinet door 2 is installed in front of the cabinet 1. A sealing strip is installed between the cabinet door 2 and the cabinet 1. After the cabinet door 2 is closed, the cabinet door 2 and the cabinet 1 form a sealed closed structure.

[0022] The cabinet 1 includes an outer shell 101 and an inner shell 102 located on the inner side of the outer shell 101. The outer shell 101 and the inner shell 102 are respectively mainly composed of side walls on the left and right sides, a top wall at the top, and a rear wall located at the back. An interlayer 103 is formed between the outer shell 101 and the inner shell 102, that is, the interlayer 103 is also divided into a top space, a two-side space and a rear space. The interior of the interlayer 103 is filled with a refrigerant. The refrigerant here is a coolant with an insulating effect, such as transformer oil. The function of the refrigerant is to transfer the heat on the inner shell 102 to the outer shell 101, thereby improving the thermal conductivity between the inner shell 102 and the outer shell 101.

[0023] The inner part of the interlayer 103 is also provided with a heat sink 4, which is used to further improve the heat conduction effect. The heat sink 4 includes a heat conducting rod 401, which is located in the top space and the two side spaces of the interlayer 103. The distribution of the heat conducting rod 401 can be referred to Figure 7 shown.

[0024] The two ends of the heat-conducting rod 401 are respectively connected to the outer shell 101 and the inner shell 102. The heat-conducting rod 401 is a metal rod with high thermal conductivity, such as a copper rod. The heat-conducting rod 401 is a slender rod-shaped structure. The heat-conducting rod 401 is arranged in the interlayer along the front-to-back direction. The thermal conductivity of the heat-conducting rod 401 is greater than the thermal conductivity of the coolant, and is used to further improve the thermal conductivity efficiency between the inner shell 102 and the outer shell 101.

[0025] The heat dissipation rack 4 also includes a first conveying frame 406 and a second conveying frame 407 connected to the heat-conducting rod 401. The heat-conducting rod 401, the first conveying frame 406, and the second conveying frame 407 are all hollow structures, that is, the heat-conducting rod 401, the first conveying frame 406, and the second conveying frame 407 are all tubular structures, and the two ends of the heat-conducting rod 401 are respectively connected to the first conveying frame 406 and the second conveying frame 407. Here, a copper tube with high thermal conductivity is taken as an example.

[0026] The heat conducting rod 401, the first conveying frame 406 and the second conveying frame 407 are filled with refrigerant. The refrigerant here is the same as the refrigerant in the interlayer 103, and their functions are to transfer heat and conduct heat. The first conveying frame 406 and the second conveying frame 407 are respectively connected to the inlet and outlet ends of the driving box 3. The function of the driving box 3 is to drive the refrigerant inside the heat conducting rod 401, the first conveying frame 406 and the second conveying frame 407 to flow. The driving box 3 is located on the outside of the cabinet 1. When driving this part of the refrigerant to flow, this part of the refrigerant flows to the outside of the cabinet 1 for independent heat dissipation, and cooperates with the outer shell 101 to synergistically dissipate heat through two different heat dissipation paths, thereby further improving the heat dissipation efficiency.

[0027] Example 2 Reference Figure 1-9 The present invention provides an electric power distribution device. The difference between this embodiment and embodiment 1 is that the heat-conducting rod 401 includes an upper heat-conducting pipe 402 connected to the outer shell 101 and a lower heat-conducting pipe 403 connected to the inner shell 102. In the present application, the side of the inner layer 103 close to the inner shell 102 is the inner side, and the side close to the outer shell 101 is the outer side. Here, the upper heat-conducting pipe 402 is located on the outer side, and the lower heat-conducting pipe 403 is located on the inner side. An insulation layer 408 is installed between the upper heat-conducting pipe 402 and the lower heat-conducting pipe 403. The function of the insulation layer 408 is to reduce the heat transfer between the upper heat-conducting pipe 402 and the lower heat-conducting pipe 403.

[0028] An upper heat conducting hole 404 is processed on the side wall of the upper heat conducting pipe 402 , and the upper heat conducting hole 404 is inclined upward toward the inner wall of the outer shell 101 . A lower heat conducting hole 405 is processed on the side wall of the lower heat conducting pipe 403 , and the lower heat conducting hole 405 is inclined downward toward the outer wall of the inner shell 102 .

[0029] The upper heat pipe 402 is connected to the first conveying frame 406, and the lower heat pipe 403 is connected to the second conveying frame 407. In the embodiment, when the driving box 3 drives the refrigerant to flow, the refrigerant flows from the interlayer 103 into the upper heat pipe 402, and after circulation, it flows from the lower heat pipe 403 into the interlayer 103, and the flow circulates in this direction.

[0030] Generally speaking, the refrigerant in the interlayer 103 flows outward from the side close to the inner shell 102 to the side close to the outer shell 101, and part of the heat is transferred to the outer shell 101. Then this part of the refrigerant flows toward the adjacent upper heat conduction hole 404, enters the upper heat conduction pipe 402, and then passes through the first conveying frame 406, enters the drive box 3, and after the drive box 3 provides power, it flows back to the second conveying frame 407, passes through the lower heat conduction pipe 403, and finally flows into the interlayer 103 from the lower heat conduction hole 405, and under the guidance of the direction of the lower heat conduction hole 405, flows to the side close to the inner shell 102 to absorb the heat on the inner shell 102.

[0031] For reference Figure 4 , the flow direction of the refrigerant between the two heat conduction rods 401, and the distribution of the heat conduction rods 401 in the interlayer 103 are arranged to minimize interference when the refrigerant flows between adjacent two heat conduction rods 401 and reduce the dead corners of the refrigerant flow. That is, when the refrigerant flows in the interlayer 103, it circulates in the direction from the inside to the outside.

[0032] The function of the drive box 3 is to drive the refrigerant to circulate and help the refrigerant dissipate heat during the flow process. Specifically, the drive box 3 includes heat dissipation fins 301, heat dissipation pipes 302, a circulation pump 303, and a heat dissipation fan 304. The heat dissipation pipes 302 penetrate through the heat dissipation fins 301 and are coiled in an S shape. The heat dissipation fins 301 are evenly spaced. After the heat dissipation pipes 302 pass through the heat dissipation fins 301, one end of the heat dissipation pipes 302 is communicated with the outlet end of the circulation pump 303. The inlet end of the circulation pump 303 is communicated with the first conveying frame 406, and then the other end of the heat dissipation pipes 302 is communicated with the second conveying frame 407.

[0033] The heat dissipation fan 304 is installed on the side of the heat dissipation fins 301 close to the cabinet body 1, and the wind direction of the heat dissipation fan 304 faces away from the cabinet body 1, blowing the heat on the heat dissipation fins 301 to the side away from the cabinet body 1.

[0034] When the circulation pump 303 is started, it drives the refrigerant to enter the heat dissipation pipes 302 from the first conveying frame 406. When the refrigerant passes through the heat dissipation pipes 302, it transfers the heat to the heat dissipation fins 301 through the heat dissipation pipes 302. The heat dissipation fins 301 dissipate the heat to the outside of the cabinet body 1, and the refrigerant is cooled in this way. The cooled refrigerant flows back into the second conveying frame 407 through the other end of the heat dissipation pipes 302, flows back into the lower heat conduction pipe 403 through the second conveying frame 407, and finally flows to the surface of the inner shell 102 through the lower heat conduction holes 405 to absorb heat.

[0035] In this application, the shape of the interlayer 103 in the front view direction is in the shape of a "冂" character, and the heat conduction rods 401 are also distributed in the shape of a "冂" character, while the shapes of the first conveying frame 406 and the second conveying frame 407 in the front view direction are also in the shape of a "冂" character.

[0036] Of course, here, heat conduction rods 401 can also be installed in the space behind the cabinet door 2 and the interlayer 103. Then, the cabinet door 2 is also processed into a hollow structure. One end of the heat conduction rod 401 installed in the cabinet door 2 is communicated with the second conveying frame 407, and the other end is communicated with the first conveying frame 406 through a hose. For the heat conduction rod 401 installed in the space behind the interlayer 103, one end is directly communicated with the first conveying frame 406, and the other end is communicated with the second conveying frame 407 through a pipe fitting. In this way, good heat dissipation effects are achieved in the front, back, left, right, and top side walls of the cabinet body 1.

[0037] Example 3 Reference Figure 1-14 The present invention is an electric power distribution device. The difference between this embodiment and embodiment 2 is that, in some use environments, it is also necessary to pay attention to moisture-proof when using the distribution cabinet. The cabinet body 1 and the cabinet door 2 of the sealing mechanism of the present application can reduce the water vapor in the external environment from entering the cabinet body 1. For the distribution cabinet requiring lower humidity, the scheme of the present application also includes a guide frame 5 installed at the bottom of the cabinet body 1. The guide frame 5 has the function of guiding the water flow. The guide frame 5 includes a water delivery rod 504 for absorbing the water vapor in the internal air of the cabinet body 1. The water delivery rod 504 can be a volatilization rod, and the volatilization rod with a loose porous structure and capillary effect is mainly used. The function of the water delivery rod 504 is to absorb a small amount of water vapor in the cabinet body 1, and under the capillary action, after the water vapor condenses into liquid, the condensed water is sent to the outside of the cabinet body 1.

[0038] When the air in the cabinet 1 contains water vapor, due to the heat dissipation effect mentioned above, the overall temperature inside the cabinet 1 is controlled within a predetermined range. Since the temperature of the electrical components is higher than the air temperature in the cabinet 1 during operation, the air is heated during the heat transfer process. According to the principle that hot air rises and cold air falls, the air in the cabinet 1 will perform vertical microcirculation in the cabinet 1 under the drive of the heat emitted by the electrical components.

[0039] During the microcirculation process, when the air passes through the inner bottom of the cabinet 1, the water vapor in the air is absorbed by the water delivery rod 504 with a loose porous structure, thereby reducing the amount of water vapor in the air in the cabinet 1 and achieving a moisture-proof effect.

[0040] Here, in order to improve the air flow effect in the cabinet 1, fans can also be installed inside the cabinet 1. For example, four fans are installed at the four corners inside the cabinet 1, and the wind directions of the four fans are arranged clockwise or counterclockwise, so that the air in the cabinet 1 can flow smoothly and regularly when heat dissipation is required. When the air flows to the bottom of the inner side of the cabinet 1 and approaches the water delivery rod 504, the water delivery rod 504 absorbs water vapor in the air.

[0041] The guide frame 5 includes a moisture absorption box 501 located at the bottom of the cabinet 1, and the top of the moisture absorption box 501 is processed with moisture absorption holes 502, and the moisture absorption holes 502 are arranged in an array on the moisture absorption box 501. A water delivery rod 504 is installed inside the moisture absorption hole 502. The water vapor in the air passing over the top of the moisture absorption box 501 contacts the water delivery rod 504 and enters the inside of the water delivery rod 504.

[0042] Since the water delivery rod 504 made of a volatilizing rod has a good volatilization effect, the water absorbed in the water delivery rod 504 can be discharged in time, which can effectively extend the service life of the water delivery rod 504 and avoid the situation where the water delivery rod 504 cannot continue to absorb water after being full of water and evaporates water vapor into the cabinet 1.

[0043] Specifically, the water delivery rod 504 includes a volatile sheet 505, a short rod 506, and a long rod 507. The axis of the short rod 506 is arranged in the vertical direction, and the axis of the long rod 507 is arranged in the horizontal direction. When the short rod 506 and the long rod 507 are not fully absorbed with water, the moisture content is low, and the capillary flow formed by the water vapor is small, and the water vapor can continue to be absorbed. When the short rod 506 and the long rod 507 absorb more water vapor, a capillary flow can be formed under the capillary action, and the capillary flow is consistent with its own axis.

[0044] Among them, there are multiple moisture absorption holes 502, and the multiple moisture absorption holes 502 are arranged in an array on the top of the moisture absorption box 501. The upper part of the short rod 506 is located in the moisture absorption hole 502, and the top of the short rod 506 is not lower than the top of the moisture absorption hole 502. The lower part of the short rod 506 is connected to the long rod 507. Here, the short rod 506 is vertically arranged, and the long rod 507 is horizontally arranged. The long rod 507 is arranged in an array manner of the short rods 506. The bottom of the short rods 506 in the same column is connected to the same long rod 507, and the axial direction of the long rod 507 is arranged in the front-to-back direction.

[0045] The front end of the long rod 507 is located inside the moisture absorption box 501, the top of the front end of the long rod 507 is connected to the short rod 506, the end of the long rod 507 away from the short rod 506 is the rear end of the long rod 507, and the rear end of the long rod 507 is connected to the volatile sheet 505. The volatile sheet 505 is a sheet structure made of the same material as the water delivery rod 504, and the surface of the volatile sheet 505 can be treated with antistatic treatment, such as soaking in antistatic agent, etc., to reduce dust adsorption caused by static electricity and reduce blockage. The main function of the volatile sheet 505 is to increase the surface area of ​​the volatile sheet 505 and improve the volatilization efficiency of the volatile sheet 505.

[0046] The volatile sheet 505 is located on the outside of the cabinet 1, so that the capillary flow formed in the water delivery rod 504 flows from the end with high moisture content to the end with low moisture content in the water delivery rod 504. In the present application, it flows from the top to the bottom of the short rod 506, moves from the front to the rear end of the long rod 507, and moves from the inside of the cabinet 1 to the outside of the cabinet 1. After the capillary flow flows from the long rod 507 to the volatile sheet 505, the water vapor on the volatile sheet 505 evaporates faster than the water vapor on the long rod 507, so that the moisture content on the volatile sheet 505 is lower than that on the long rod 507, so that the capillary flow in the long rod 507 can continue to flow to the volatile sheet 505 for volatilization, thereby transporting the water vapor in the cabinet 1 to the outside of the cabinet 1.

[0047] In this embodiment, the volatile sheet 505 extends out of the cabinet 1 and fits with the heat dissipation fins 301 . Specifically, the volatile sheet 505 fits on the side of the heat dissipation fins 301 away from the heat dissipation fan 304 .

[0048] Since the function of the heat sink 301 is to dissipate the heat transferred by the refrigerant, the temperature of the heat sink 301 when in use is significantly higher than the ambient temperature. Therefore, when the volatile sheet 505 is attached to the heat sink 301, the heat of the heat sink 301 can effectively improve the volatilization efficiency of the volatile sheet 505, thereby improving the water delivery and drainage efficiency of the volatile sheet 505 and the water delivery rod 504.

[0049] In fact, the amount of water vapor contained in the air in the cabinet 1 is very limited, and the heat dissipation fins 301 can keep the volatile sheet 505 and the water delivery rod 504 dry for a long time during long-term operation, which is beneficial to increase the service life of the water delivery rod 504 and the volatile sheet 505.

[0050] Here, the guide frame 5 also includes a moisture absorption tube 503 having a shape corresponding to the short rod 506 and the long rod 507. The short rod 506 and the long rod 507 are located on the inner side of the moisture absorption tube 503, that is, the shape of the moisture absorption tube 503 is similar to the shape of the water delivery rod 504, and the water delivery rod 504 is wrapped on the inner side of the moisture absorption hole 502. Its function is to reduce the volatilization efficiency of the short rod 506 and the long rod 507, thereby reducing the volatilization amount of water vapor on the short rod 506 and the long rod 507, so that the capillary flow in the short rod 506 and the long rod 507 flows to the volatilization sheet 505 as much as possible for volatilization, thereby bringing the water vapor on the inside of the cabinet 1 to the outside of the cabinet 1.

[0051] Working principle: In terms of the overall structure, when in use, it can be divided into the following situations: When the heat generation is low, the drive box 3 can be disabled. The heat generated by the electrical components in the cabinet 1 is mainly transferred from the inner shell 102 to the refrigerant in the interlayer 103, and then transferred to the outer shell 101 by the refrigerant. Since the refrigerant itself has a certain heat absorption effect, it can regulate the temperature in a small range. Therefore, it can be used to regulate the temperature and transfer heat when the heat generation of the electrical components in the distribution cabinet is not high.

[0052] When the heat generation is high, the drive box 3 is started, and the refrigerant in the interlayer 103 flows from the lower heat pipe 403 to the outer surface of the inner shell 102 in a dynamic circulation manner under the driving action of the circulation pump 303, taking away the heat on the inner shell 102, and then flows outward in the interlayer 103. When it flows to the vicinity of the inner wall of the outer shell 101, part of the heat is transferred to the outer shell 101 and dissipated outward through the outer shell 101, and the other part of the heat continues to flow with the refrigerant, enters the upper heat pipe 402, passes through the first conveying frame 406, and then enters the circulation pump 303, and is driven by the circulation pump 303 to flow into the heat pipe 302. When the refrigerant flows in the heat pipe 302, the heat is transferred from the refrigerant to the heat pipe 302, and then from the heat pipe 302 to the heat dissipation fins 301, and the heat dissipation fins 301 dissipate the heat to the external environment; Then, the refrigerant after losing heat flows from the other end of the heat dissipation pipe 302 into the second conveying frame 407, then enters the lower heat conduction pipe 403, and finally flows back into the interlayer 103 from the lower heat conduction hole 405, and flows inward to the outer wall of the inner shell 102 to absorb the heat on the inner shell 102, forming a cycle.

[0053] During use of the device, when the air in the cabinet 1 contains a lot of water vapor, the water vapor flows with the air in the cabinet 1. When it approaches the top of the moisture absorption box 501, the water delivery rod 504 with a loose porous structure absorbs the water vapor in the air, and the water vapor enters the short rod 506. Under the capillary action, a lot of water vapor gathers into a capillary flow in the short rod 506. The capillary flow flows from the short rod 506 to the long rod 507, and then flows from the long rod 507 to the volatile sheet 505. Under the heating effect of the heat dissipation fins 301, the water vapor is accelerated to evaporate from the volatile sheet 505 into the external environment, thereby reducing the water vapor content in the air inside the cabinet 1 and achieving a moisture-proof effect.

[0054] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

[0055] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0056] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. An electric power distribution device, comprising a cabinet (1) with a sealed structure, characterized in that: The cabinet (1) comprises an outer shell (101) and an inner shell (102) located inside the outer shell (101), an interlayer (103) is provided between the outer shell (101) and the inner shell (102), and a refrigerant is filled inside the interlayer (103).

2. A power distribution device according to claim 1, characterized in that: A heat dissipation frame (4) is also provided inside the interlayer (103), and the heat dissipation frame (4) comprises a heat conducting rod (401), and two ends of the heat conducting rod (401) are respectively connected to the outer shell (101) and the inner shell (102).

3. A power distribution device according to claim 2, characterized in that: The heat dissipation frame (4) further comprises a first conveying frame (406) and a second conveying frame (407) connected to the heat-conducting rod (401); the heat-conducting rod (401), the first conveying frame (406) and the second conveying frame (407) are all hollow structures; the heat-conducting rod (401), the first conveying frame (406) and the second conveying frame (407) are filled with refrigerant; the first conveying frame (406) and the second conveying frame (407) are respectively connected to the inlet end and the outlet end of the driving box (3).

4. A power distribution device according to claim 3, characterized in that: The heat-conducting rod (401) comprises an upper heat-conducting pipe (402) connected to the outer shell (101) and a lower heat-conducting pipe (403) connected to the inner shell (102); an upper heat-conducting hole (404) is provided on the side wall of the upper heat-conducting pipe (402); a lower heat-conducting hole (405) is provided on the side wall of the lower heat-conducting pipe (403); the upper heat-conducting pipe (402) is connected to a first conveying frame (406); and the lower heat-conducting pipe (403) is connected to a second conveying frame (407).

5. A power distribution device according to claim 4, characterized in that: The driving box (3) comprises a heat dissipation fin (301), a heat dissipation pipe (302), and a circulation pump (303); the heat dissipation pipe (302) runs through the heat dissipation fin (301); one end of the heat dissipation pipe (302) is connected to a first conveying frame (406) via the circulation pump (303); and the other end of the heat dissipation pipe (302) is connected to a second conveying frame (407).

6. A power distribution device according to claim 5, characterized in that: It also comprises a flow guide frame (5) arranged at the bottom of the cabinet (1), wherein the flow guide frame (5) comprises a water delivery rod (504) for absorbing water vapor in the air inside the cabinet (1).

7. A power distribution device according to claim 6, characterized in that: The flow guide frame (5) comprises a moisture absorption box (501) located at the bottom of the cabinet (1), a moisture absorption hole (502) is arranged at the top of the moisture absorption box (501), and a water delivery rod (504) is arranged inside the moisture absorption hole (502).

8. The power distribution device according to claim 7, characterized in that: The water delivery rod (504) comprises a volatile sheet (505), a short rod (506), and a long rod (507); the upper portion of the short rod (506) is located in the moisture absorption hole (502); the lower portion of the short rod (506) is connected to the long rod (507); one end of the long rod (507) away from the short rod (506) is connected to the volatile sheet (505); and the volatile sheet (505) is located outside the cabinet (1).

9. The power distribution device according to claim 8, characterized in that: The volatile sheet (505) is fitted onto the heat dissipation fins (301).

10. The power distribution device according to claim 8, characterized in that: The flow guide frame (5) further comprises a moisture absorption tube (503) having a shape corresponding to the short rod (506) and the long rod (507), wherein the short rod (506) and the long rod (507) are located on the inner side of the moisture absorption tube (503).

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