Power distribution cabinet for low-carbon intelligent power grid

Abstract

The embodiment of the invention relates to the technical field of power grid distribution boxes, and provides a power distribution cabinet for a low-carbon intelligent power grid, which comprises an electric cabinet base, an upper-layer cabinet body, a power distribution frame group and an internal circulation cooling assembly, a lower-layer cabinet body is arranged on the electric cabinet base, the upper-layer cabinet body is arranged on the electric cabinet base through a lifting assembly, and the upper-layer cabinet body is in sealed contact with the lower-layer cabinet body; a power distribution cavity is formed between the upper-layer cabinet body and the lower-layer cabinet body, the power distribution frame group is arranged on the electric cabinet base, the power distribution frame group is located in the power distribution cavity and is used for carrying intelligent electrical elements, and the internal circulation cooling assembly is arranged on the upper-layer cabinet body in a communicated mode and corresponds to the power distribution frame group. According to the technical scheme, the technical problems that in the operation process of a power distribution cabinet for a low-carbon intelligent power grid in the prior art, the heat dissipation efficiency of high-integration-level electrical elements is poor, the protection performance is low, and the electrical elements are prone to being damaged are solved.

Description

Technical Field

[0001] Embodiments of the present disclosure relate to the technical field of power grid distribution boxes, and more specifically, to a distribution cabinet for a low-carbon smart grid. Background Art

[0002] With the increasing global attention to environmental protection and the development of sustainable energy, the low-carbon smart grid, as the future development direction of the power system, is gradually becoming a hot spot in research and application. The low-carbon smart grid realizes the efficient production, transmission, distribution, and use of electricity through advanced technical means, and can minimize energy consumption and carbon emissions. In such a trend, the distribution cabinet, as an indispensable and important device in the smart grid, plays an increasingly crucial role.

[0003] The distribution cabinet has many important tasks such as power distribution, control, protection, and monitoring of electric energy, and is one of the core components to ensure the stable operation of the power system. When facing the increasingly complex requirements of the low-carbon smart grid, as the integration degree of electrical components in the distribution cabinet continues to increase, the heat generated during its operation is also increasing. The heat dissipation design of traditional distribution cabinets is often relatively simple, mostly only equipped with heat dissipation holes and cooling fans, etc., and it is difficult to effectively dissipate a large amount of heat during operation, which will lead to too high temperature inside the distribution cabinet, thus affecting the service life and performance stability of electrical components. Moreover, in terms of protection, the gas entering the distribution box through the heat dissipation holes is affected by the external environment, and the gas will contain dust, moisture, etc., which is likely to erode the electrical components and cause failures. Summary of the Invention

[0004] To overcome the above defects, embodiments of the present disclosure provide a distribution cabinet for a low-carbon smart grid to solve the technical problems proposed in the background art, that is, for the distribution cabinet for a low-carbon smart grid in the prior art, during its operation, the heat dissipation efficiency of electrical components with high integration degree is poor, and there is a low protection performance, which is likely to cause damage to electrical components.

[0005] The technical solution of the present disclosure is as follows: A distribution cabinet for a low-carbon smart grid includes an electric cabinet base, an upper cabinet body, a distribution rack group, and an internal circulation cooling component; A lower cabinet body is arranged on the electric cabinet base; The upper cabinet body is arranged on the electric cabinet base through a lifting component, the upper cabinet body is in sealed contact with the lower cabinet body, and a distribution cavity is formed between the upper cabinet body and the lower cabinet body; The distribution rack group is arranged on the electric cabinet base, and the distribution rack group is located in the distribution cavity and is used for the loading operation of intelligent electrical components; The inner circulation cooling component is connected and arranged on the upper cabinet body, and the inner circulation cooling component corresponds to the power distribution frame group and is used for cooling electrical components.

[0006] On the basis of the foregoing solution, the lifting component includes a lifting lead screw, a lifting tube, a lifting rotating rod, a first lifting bevel gear, a second lifting bevel gear, and a lifting power unit; There are multiple lifting lead screws. One end of each lifting lead screw is arranged on the cabinet base, and the lifting lead screw is located in the power distribution cavity. A lifting ball nut group is threadedly connected to each lifting lead screw; There are multiple lifting tubes. The lifting tubes penetrate and are rotatably arranged on the upper cabinet body. The lifting tubes correspond to the lifting lead screws one by one. One end of the lifting tube is connected to the lifting ball nut group, and the lifting lead screw is located inside the lifting tube; There are multiple lifting rotating rods. The lifting rotating rods are rotatably arranged on the upper cabinet body, and the lifting rotating rods are located between two adjacent lifting tubes; There are multiple first lifting bevel gears. The first lifting bevel gears correspond to the lifting tubes one by one, and the first lifting bevel gears are arranged on the lifting tubes; There are multiple second lifting bevel gears. The second lifting bevel gears are arranged on both sides of the lifting rotating rod, and the second lifting bevel gears are meshed with the adjacent first lifting bevel gears; The lifting power unit is arranged on the upper cabinet body, and the lifting power unit is connected to one of the lifting rotating rods.

[0007] Further on the basis of the foregoing solution, the lifting power unit includes a lifting motor, a third bevel gear, and a fourth bevel gear; The lifting motor is installed on the upper cabinet body; The third bevel gear is arranged on one of the lifting rotating rods; The fourth bevel gear is arranged on the output end of the lifting motor, and the fourth bevel gear is meshed with the third bevel gear.

[0008] On the basis of the foregoing solution, a power protection box is further arranged on the upper cabinet body. The lifting motor, the first bevel gear, the second bevel gear, the third bevel gear, and the fourth bevel gear are all located inside the power protection box, and a heat dissipation through hole is opened on one side of the power protection box.

[0009] On the basis of the foregoing solution, the power distribution frame group includes a carrier and a power distribution support; The carrier is arranged on the cabinet base; A plurality of the power distribution brackets are provided. The power distribution brackets are slidably arranged on the carrier frame, and a plurality of fixing bolts are threadedly connected between the power distribution brackets and the carrier frame for fixing the positions of the power distribution brackets. A plurality of bearing through holes for fixing electrical components are formed in the power distribution brackets.

[0010] As a preferred technical solution of the present disclosure, the internal circulation cooling component includes a circulation air pump, an air cooling group, an intake pipe group, and an exhaust pipe group; The circulation air pump is installed on the upper cabinet body, and the circulation air pump is located inside the power protection box; The air cooling group is arranged on the upper cabinet body; One end of the intake pipe group is communicated with the intake end of the circulation air pump, and the other end of the intake pipe group passes through the air cooling group and is communicated with one end of the upper cabinet body; One end of the exhaust pipe group is communicated with the exhaust end of the circulation air pump, and the other end of the exhaust pipe group passes through the air cooling group and is communicated with the other end of the upper cabinet body.

[0011] On the basis of the foregoing solution, further, the air cooling group includes a cooling box, an exhaust air box, and exhaust pipes; Two cooling boxes are provided, and the two cooling boxes are symmetrically arranged on both sides of the upper cabinet body. Intake through holes are formed in the cooling boxes; The exhaust air box is arranged on the power protection box, and an exhaust fan is installed in the exhaust air box; A plurality of exhaust pipes are provided, and the exhaust pipes are connected in pairs and communicated between the exhaust air box and the cooling box.

[0012] On the basis of the foregoing solution, the intake pipe group includes an intake cooling pipe and a multi-way intake pipe network; One end of the intake cooling pipe is communicated with the intake end of the circulation air pump, and the other end of the intake cooling pipe penetrates through one of the cooling boxes and is wound inside the cooling box; A plurality of multi-way intake pipe networks are provided, and the multi-way intake pipe networks correspond to the power distribution brackets one by one. One end of the multi-way intake pipe network is communicated with the intake cooling pipe, and an intake valve is installed between the multi-way intake pipe network and the intake cooling pipe. The remaining ports of the multi-way intake pipe network are all communicated and arranged on the upper cabinet body.

[0013] On the basis of the foregoing solution, the exhaust pipe group includes an exhaust cooling pipe and a multi-way exhaust pipe network; One end of the exhaust cooling pipe is communicated with the exhaust end of the circulation air pump, and the other end of the exhaust cooling pipe penetrates through the other cooling box and is wound inside the cooling box; There are multiple multi-pass exhaust pipe networks, and the multi-pass exhaust pipe networks correspond to the distribution brackets one by one. One end of the multi-pass exhaust pipe network is connected to the exhaust cooling pipe, and an exhaust valve is installed between the multi-pass exhaust pipe network and the exhaust cooling pipe. The remaining ports of the multi-pass exhaust pipe network are all communicated and arranged on the upper cabinet body.

[0014] On the basis of the foregoing solution, a sliding limit part is further arranged between the upper cabinet body and the electric cabinet base. There are multiple sliding limit parts, and the sliding limit part includes a limit cylinder and a limit bent rod; The limit cylinder is arranged on the electric cabinet base; One end of the limit bent rod is arranged on one side of the upper cabinet body, and the other end of the limit bent rod penetrates and is slidably arranged in the limit cylinder.

[0015] The beneficial effects of the present disclosure are as follows: 1. In the present disclosure, by arranging the lower cabinet body, the upper cabinet body and the lifting assembly, by starting the lifting motor in the lifting assembly, the upper cabinet body can be driven to move on the lower cabinet body. Through the movement of the upper cabinet body, different from the traditional open-type power distribution cabinet, through the lifting of the upper cabinet body, not only can the distribution rack group be completely exposed, facilitating the staff to repair and replace the electrical components on the distribution rack group, but also has a good sealing effect, which can effectively prevent external gas from entering the power distribution cavity; 2. In the present disclosure, by arranging the distribution rack group and the internal circulation cooling assembly, by starting the circulation air pump and the exhaust fan, not only can the internal circulation cooling operation be carried out on the gas in the power distribution cavity to cool the electrical components on the distribution rack group, but also when cooling the electrical components on the distribution rack group, the concentrated heating electrical components on the distribution rack group can be blown for heat dissipation, so as to improve the heat dissipation efficiency of the electrical components and increase the service life of the electrical components. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following will briefly introduce the drawings required for the description of the embodiments of the present disclosure. Obviously, the following drawings are only some exemplary embodiments of the present disclosure. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the content of the exemplary embodiments of the present disclosure and these drawings.

[0017] Figure 1 It is a schematic structural diagram of an overall power distribution cabinet for a low-carbon smart grid in an embodiment of the present disclosure; Figure 2 It is a schematic structural diagram of a partial cross-section of a power distribution cabinet for a low-carbon smart grid in an embodiment of the present disclosure; Figure 3 For the present disclosure Figure 2Schematic diagram of the partially enlarged structure at location A; Figure 4 This disclosure Figure 2 Schematic diagram of the partially enlarged structure at location B; Figure 5 This disclosure Figure 2 Schematic diagram of the partially enlarged structure at location C; Figure 6 Schematic diagram of the lifting component in the embodiment of this disclosure; Figure 7 This disclosure Figure 6 Schematic diagram of the partially enlarged structure at location D; Figure 8 Schematic diagram of the power distribution rack group in the embodiment of this disclosure; Figure 9 Schematic diagram of the sectional structure of the internal circulation cooling component in the embodiment of this disclosure; Figure 10 Schematic diagram of another state of the power distribution cabinet for a low-carbon smart grid in the embodiment of this disclosure.

[0018] In the figure: 001, lifting component; 002, power distribution rack group; 003, internal circulation cooling component; 1, cabinet base; 2, lower cabinet body; 3, upper cabinet body; 4, lifting lead screw; 5, lifting ball nut group; 6, lifting pipe; 7, lifting rotating rod; 8, first lifting bevel gear; 9, second lifting bevel gear; 10, lifting motor; 11, third bevel gear; 12, fourth bevel gear; 13, power protection box; 14, bearing frame; 15, power distribution support; 16, fixing bolt; 17, circulation air pump; 18, cooling box; 19, exhaust air box; 20, exhaust fan; 21, exhaust air pipe; 22, intake air cooling pipe; 23, multi-pass intake air pipe network; 24, intake air valve; 25, exhaust air cooling pipe; 26, multi-pass exhaust air pipe network; 27, exhaust air valve; 28, limit cylinder; 29, limit bent rod. Detailed implementation manners

[0019] The following further elaborates on this disclosure in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are merely for explaining this disclosure and not for limiting this disclosure.

[0020] To simplify the drawings, only the parts related to the disclosure are schematically shown in each figure, and they do not represent the actual structure of the product. Additionally, to simplify the drawings for easier understanding, in some figures, components with the same structure or function are only schematically shown for one of them, or only one of them is labeled. In this document, "one" not only means "only this one" but also can mean "more than one" situation, and "several" includes "two" and "more than two".

[0021] In this document, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "joined" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this disclosure can be understood according to specific situations.

[0022] In this disclosure, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature can include the direct contact between the first and second features, or can also include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath", and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0023] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "left", and "right" are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to this disclosure.

[0024] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0025] As Figures 1 to 10 shown, it shows a power distribution cabinet for a low-carbon smart grid in an embodiment of this disclosure, including an electric cabinet base 1, an upper cabinet body 3, a power distribution rack group 002, and an internal circulation cooling component 003.

[0026] Among them, a lower cabinet body 2 is arranged on the electric cabinet base 1, and a plurality of wire pipes for the entry and exit of cables are communicated inside the electric cabinet base 1. During actual operation, after passing the cables through the wire pipes, it is necessary to block the wire pipes with flexible materials such as rubber to prevent external gas from entering the lower cabinet body 2 through the wire pipes.

[0027] As described above, the upper cabinet body 3 is arranged on the electric cabinet base 1 through a lifting assembly 001. The upper cabinet body 3 is in sealed contact with the lower cabinet body 2, and a power distribution cavity is formed between the upper cabinet body 3 and the lower cabinet body 2. The lifting assembly 001 includes a lifting lead screw 4, a lifting tube 6, a lifting rotating rod 7, a first lifting bevel gear 8, a second lifting bevel gear 9 and a lifting power unit. There are multiple lifting lead screws 4. One end of each lifting lead screw 4 is arranged on the electric cabinet base 1, and the lifting lead screw 4 is located in the power distribution cavity. A lifting ball nut group 5 is threadedly connected to each lifting lead screw 4. There are multiple lifting tubes 6. The lifting tubes 6 penetrate and are rotatably arranged on the upper cabinet body 3. The lifting tubes 6 correspond to the lifting lead screws 4 one by one. One end of each lifting tube 6 is connected to the lifting ball nut group 5. The lifting lead screw 4 is located inside the lifting tube 6. There are multiple lifting rotating rods 7. The lifting rotating rods 7 are rotatably arranged on the upper cabinet body 3. The lifting rotating rods 7 are located between two adjacent lifting tubes 6. There are multiple first lifting bevel gears 8. The first lifting bevel gears 8 correspond to the lifting tubes 6 one by one. The first lifting bevel gears 8 are arranged on the lifting tubes 6. There are multiple second lifting bevel gears 9. The second lifting bevel gears 9 are arranged on both sides of the lifting rotating rod 7. The second lifting bevel gears 9 are meshed with the adjacent first lifting bevel gears 8. The lifting power unit is arranged on the upper cabinet body 3 and is connected to one of the lifting rotating rods 7.

[0028] Among them, the lifting power unit includes a lifting motor 10, a third bevel gear 11 and a fourth bevel gear 12. The lifting motor 10 is installed on the upper cabinet body 3. The third bevel gear 11 is arranged on one of the lifting rotating rods 7. The fourth bevel gear 12 is arranged on the output end of the lifting motor 10. The fourth bevel gear 12 is meshed with the third bevel gear 11.

[0029] Specifically, when adjusting the position of the upper cabinet body 3, start the lifting motor 10. The output end of the lifting motor 10 drives the fourth bevel gear 12 to rotate. The rotation of the fourth bevel gear 12 drives the third bevel gear 11 to rotate. The rotation of the third bevel gear 11 drives the connected lifting rotating rod 7 to rotate. The rotation of the lifting rotating rod 7 drives the second bevel gear to rotate. The rotation of the second bevel gear drives the first bevel gear to rotate. The rotation of the first bevel gear drives the connected lifting tube 6 to rotate. The rotation of the lifting tube 6 drives the lifting ball nut group 5 to rotate. By setting the thread helix direction on the lifting lead screw 4, the multiple lifting ball nut groups 5 move synchronously, at the same speed and in the same direction. Through the movement of the lifting ball nut group 5, the lifting tube 6 and the upper cabinet body 3 are driven to move, and the position between the upper cabinet body 3 and the lower cabinet body 2 is adjusted.

[0030] It should be supplemented and explained that a power protection box 13 is also arranged on the upper cabinet body 3. The lifting motor 10, the first bevel gear, the second bevel gear, the third bevel gear 11 and the fourth bevel gear 12 are all located inside the power protection box 13. A heat dissipation through hole is opened on one side of the power protection box 13.

[0031] As described above, the distribution rack group 002 is arranged on the electric cabinet base 1. The distribution rack group 002 is located in the distribution cavity and is used for the loading operation of intelligent electrical components. The distribution rack group 002 includes a loading rack 14 and distribution brackets 15. The loading rack 14 is arranged on the electric cabinet base 1. There are multiple distribution brackets 15. The distribution brackets 15 are slidably arranged on the loading rack 14. A plurality of fixing bolts 16 are threadedly connected between the distribution brackets 15 and the loading rack 14 to fix the positions of the distribution brackets 15. A plurality of loading through holes for fixing electrical components are provided on the distribution brackets 15.

[0032] Specifically, the loading rack 14 can be fixed on the distribution brackets 15 through the fixing bolts 16. Through the loading through holes on the loading rack 14, the electrical components required for power distribution can be fixedly installed, and the electrical components are suspended and fixed in the distribution cavity. While facilitating good heat dissipation of the electrical components, it is more convenient to repair and maintain the electrical components by lifting the upper cabinet body 3.

[0033] As described above, the internal circulation cooling component 003 is connected and arranged on the upper cabinet body 3. The internal circulation cooling component 003 corresponds to the distribution rack group 002 and is used for cooling the electrical components. The internal circulation cooling component 003 includes a circulation air pump 17, an air cooling group, an intake pipe group, and an exhaust pipe group. The circulation air pump 17 is installed on the upper cabinet body 3. The circulation air pump 17 is located in the power protection box 13. The air cooling group is arranged on the upper cabinet body 3. One end of the intake pipe group is connected to the intake end of the circulation air pump 17, and the other end of the intake pipe group passes through the air cooling group and is connected to one end of the upper cabinet body 3. One end of the exhaust pipe group is connected to the exhaust end of the circulation air pump 17, and the other end of the exhaust pipe group passes through the air cooling group and is connected to the other end of the upper cabinet body 3.

[0034] Among them, the air cooling group includes a cooling box 18, an exhaust air box 19, and exhaust pipes 21. There are two cooling boxes 18, and the two cooling boxes 18 are symmetrically arranged on both sides of the upper cabinet body 3. Intake through holes are provided on the cooling box 18. The exhaust air box 19 is arranged on the power protection box 13. An exhaust fan 20 is installed in the exhaust air box 19. There are multiple exhaust pipes 21, and the exhaust pipes 21 are connected in pairs between the exhaust air box 19 and the cooling box 18.

[0035] Among them, the intake pipe group includes an intake air cooling pipe 22 and a multi-pass intake air pipe network 23. One end of the intake air cooling pipe 22 is connected to the intake end of the circulation air pump 17, and the other end of the intake air cooling pipe 22 penetrates through one of the cooling boxes 18 and is wound inside the cooling box 18. There are multiple multi-pass intake air pipe networks 23, and the multi-pass intake air pipe networks 23 correspond to the distribution brackets 15 one by one. One end of the multi-pass intake air pipe network 23 is connected to the intake air cooling pipe 22, and an intake air valve 24 is installed between the multi-pass intake air pipe network 23 and the intake air cooling pipe 22. The remaining ports of the multi-pass intake air pipe network 23 are all connected to the upper cabinet body 3.

[0036] Among them, the exhaust pipe group includes an exhaust cooling pipe 25 and a multi-pass exhaust pipe network 26. One end of the exhaust cooling pipe 25 is connected and arranged at the exhaust end of the circulating air pump 17. The other end of the exhaust cooling pipe 25 penetrates through another cooling box 18 and is wound and arranged inside the cooling box 18. There are multiple multi-pass exhaust pipe networks 26, and the multi-pass exhaust pipe networks 26 correspond to the power distribution brackets 15 one by one. One end of the multi-pass exhaust pipe network 26 is connected and communicated with the exhaust cooling pipe 25, and an exhaust valve 27 is installed between the multi-pass exhaust pipe network 26 and the exhaust cooling pipe 25. The remaining ports of the multi-pass exhaust pipe network 26 are all connected and arranged on the upper cabinet body 3.

[0037] Specifically, when cooling the electrical components on the power distribution rack group 002, start the circulating air pump 17 to make the gas in the power distribution cavity circulate through the multi-pass intake pipe network 23, the intake cooling pipe 22, the exhaust cooling pipe 25 and the multi-pass exhaust pipe network 26. Since one end of the multi-pass intake pipe network 23 and the multi-pass exhaust pipe network 26 correspondingly bears the electrical components on the carrier 14, the gas blown out through the multi-pass exhaust pipe network 26 can directly act on the electrical components to directly cool the electrical components, so as to improve the heat dissipation efficiency of the electrical components.

[0038] When blowing gas on the electrical components, start the exhaust fan 20. The rotation of the exhaust fan 20 discharges the outside gas from the exhaust air box 19 through the cooling box 18 and the exhaust pipe 21. When the outside gas passes through the cooling box 18, it will carry the heat in the intake cooling pipe 22 and the exhaust cooling pipe 25 to cool the gas in the intake cooling pipe 22 and the exhaust cooling pipe 25.

[0039] When cooling the electrical components, the electrical components can be centrally arranged on one of the carriers 14. By opening and closing the intake valve 24 and the exhaust valve 27 at the corresponding positions, the flow direction of the gas in the power distribution cavity can be regulated to better cool the electrical components.

[0040] It should be supplemented that a sliding limit part is also arranged between the upper cabinet body 3 and the electric cabinet base 1. There are multiple sliding limit parts. The sliding limit part includes a limit cylinder 28 and a limit bent rod 29. The limit cylinder 28 is arranged on the electric cabinet base 1. One end of the limit bent rod 29 is arranged on one side of the upper cabinet body 3, and the other end of the limit bent rod 29 penetrates through and is slidably arranged in the limit cylinder 28.

[0041] Specifically, when the upper cabinet body 3 slides, the limit bent rod 29 slides synchronously in the limit cylinder 28, increasing the stability of the upper cabinet body 3 when rising or falling. And the limit bent rod 29 and the limit cylinder 28 are arranged on one side of the upper cabinet body 3, which can also effectively protect the upper cabinet body 3.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure and not to limit them. Although the present disclosure has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present disclosure can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present disclosure, and they should all be covered within the scope of the claims of the present disclosure.

Claims

1. A power distribution cabinet for a low-carbon smart grid, characterized in that: include: An electric cabinet base (1), wherein a lower cabinet body (2) is arranged on the electric cabinet base (1); An upper cabinet (3), the upper cabinet (3) being arranged on the electric cabinet base (1) via a lifting assembly (001), the upper cabinet (3) being in sealed contact with the lower cabinet (2), and a power distribution cavity being formed between the upper cabinet (3) and the lower cabinet (2); A power distribution rack group (002), the power distribution rack group (002) being arranged on the electric cabinet base (1), the power distribution rack group (002) being located in the power distribution cavity and being used for carrying intelligent electrical components; An internal circulation cooling component (003), the internal circulation cooling component (003) is connected and arranged on the upper cabinet (3), the internal circulation cooling component (003) corresponds to the power distribution rack group (002), and is used to cool the electrical components.

2. A low-carbon smart grid distribution cabinet according to claim 1, characterized in that: The lifting assembly (001) comprises: A lifting screw rod (4), wherein a plurality of the lifting screw rods (4) are provided, one end of the lifting screw rod (4) is arranged on the electric cabinet base (1), the lifting screw rod (4) is located in the power distribution cavity, and each lifting screw rod (4) is threadedly connected with a lifting ball nut assembly (5); A lifting tube (6), wherein a plurality of the lifting tubes (6) are provided, the lifting tubes (6) penetrate through and are rotatably arranged on the upper cabinet (3), the lifting tubes (6) correspond to the lifting screw rods (4) one by one, one end of the lifting tube (6) is connected to the lifting ball nut assembly (5), and the lifting screw rod (4) is located inside the lifting tube (6); A lifting rotating rod (7), wherein a plurality of the lifting rotating rods (7) are provided, the lifting rotating rods (7) are rotatably arranged on the upper cabinet (3), and the lifting rotating rods (7) are located between two adjacent lifting tubes (6); A lifting bevel gear (8), wherein a plurality of lifting bevel gears (8) are provided, wherein the lifting bevel gears (8) correspond one to one with the lifting tube (6), and the lifting bevel gears (8) are arranged on the lifting tube (6); A lifting bevel gear (9), wherein a plurality of lifting bevel gears (9) are provided, and the lifting bevel gears (9) are arranged on both sides of the lifting rotating rod (7), and the lifting bevel gears (9) are meshed with the adjacent lifting bevel gears (8); A lifting power unit, the lifting power unit is arranged on the upper cabinet (3), and the lifting power unit is connected to one of the lifting rotating rods (7).

3. A low-carbon smart grid distribution cabinet according to claim 2, characterized in that: The lifting power unit comprises: A lifting motor (10), wherein the lifting motor (10) is mounted on the upper cabinet (3); Bevel gear three (11), the bevel gear three (11) being arranged on one of the lifting and lowering rotating rods (7); Bevel gear four (12), the bevel gear four (12) is arranged on the output end of the lifting motor (10), and the bevel gear four (12) is meshed with the bevel gear three (11).

4. A low-carbon smart grid distribution cabinet according to claim 3, characterized in that: A power protection box (13) is also provided on the upper cabinet (3), and the lifting motor (10), bevel gear one, bevel gear two, bevel gear three (11) and bevel gear four (12) are all located in the power protection box (13), and a heat dissipation through hole is provided on one side of the power protection box (13).

5. A power distribution cabinet for a low-carbon smart grid according to claim 4, characterized in that: The power distribution rack group (002) comprises: A support frame (14), the support frame (14) being arranged on the electric cabinet base (1); A power distribution bracket (15), wherein a plurality of the power distribution brackets (15) are provided, wherein the power distribution brackets (15) are slidably arranged on the bearing frame (14), wherein a plurality of fixing bolts (16) are threadedly connected between the power distribution bracket (15) and the bearing frame (14) for fixing the position of the power distribution bracket (15), and wherein a plurality of bearing through holes for fixing electrical components are provided on the power distribution bracket (15).

6. A power distribution cabinet for a low-carbon smart grid according to claim 5, characterized in that: The internal circulation cooling component (003) comprises: A circulating air pump (17), wherein the circulating air pump (17) is installed on the upper cabinet (3), and the circulating air pump (17) is located in the power protection box (13); An air cooling group, the air cooling group being arranged on the upper cabinet (3); An air intake pipe group, one end of which is connected to the air intake end of the circulating air pump (17), and the other end of which passes through the air cooling group and is connected to one end of the upper cabinet (3); An exhaust pipe group, one end of the exhaust pipe group is connected to the exhaust end of the circulating air pump (17), and the other end of the exhaust pipe group passes through the air cooling group and is connected to the other end of the upper cabinet (3).

7. A power distribution cabinet for a low-carbon smart grid according to claim 6, characterized in that: The air cooling group comprises: A cooling box (18), wherein two cooling boxes (18) are provided, and the two cooling boxes (18) are symmetrically arranged on both sides of the upper cabinet (3), and an air intake hole is opened on the cooling box (18); An exhaust box (19), the exhaust box (19) being arranged on the power protection box (13), and an exhaust fan (20) being installed in the exhaust box (19); An exhaust pipe (21), wherein a plurality of the exhaust pipes (21) are provided, and the exhaust pipes (21) are arranged in pairs and connected to each other between the exhaust box (19) and the cooling box (18).

8. A power distribution cabinet for a low-carbon smart grid according to claim 7, characterized in that: The air intake pipe group comprises: an air intake cooling pipe (22), one end of the air intake cooling pipe (22) being connected to the air intake end of the circulating air pump (17), and the other end of the air intake cooling pipe (22) passing through one of the cooling boxes (18) and being wound inside the cooling box (18); A multi-way air intake network (23), wherein a plurality of the multi-way air intake network (23) are provided, and the multi-way air intake network (23) corresponds one-to-one to the power distribution bracket (15); one end of the multi-way air intake network (23) is connected to the air intake cooling pipe (22), and an air intake valve (24) is installed between the multi-way air intake network (23) and the air intake cooling pipe (22); and the remaining ports of the multi-way air intake network (23) are all connected and arranged on the upper cabinet (3).

9. A power distribution cabinet for a low-carbon smart grid according to claim 8, characterized in that: The exhaust pipe group comprises: an exhaust cooling pipe (25), one end of the exhaust cooling pipe (25) being connected to the exhaust end of the circulating air pump (17), and the other end of the exhaust cooling pipe (25) passing through another cooling box (18) and being wound inside the cooling box (18); A multi-way exhaust pipe network (26), wherein a plurality of the multi-way exhaust pipe networks (26) are provided, and the multi-way exhaust pipe networks (26) correspond one to one with the power distribution brackets (15); one end of the multi-way exhaust pipe network (26) is connected to the exhaust cooling pipe (25), and an exhaust valve (27) is installed between the multi-way exhaust pipe network (26) and the exhaust cooling pipe (25); and the remaining ports of the multi-way exhaust pipe network (26) are all connected and arranged on the upper cabinet (3).

10. A power distribution cabinet for a low-carbon smart grid according to claim 9, characterized in that: A sliding limiter is further provided between the upper cabinet body (3) and the electric cabinet base (1), and a plurality of sliding limiters are provided. The sliding limiters include: A limiting cylinder (28), wherein the limiting cylinder (28) is arranged on the electric cabinet base (1); A limit bending rod (29), one end of which is arranged on one side of the upper cabinet (3), and the other end of which penetrates and is slidably arranged in the limit cylinder (28).

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