Medium-voltage environment-friendly gas switch cabinet

Abstract

The invention discloses a medium-pressure environment-friendly gas switch cabinet, and belongs to the technical field of gas switch cabinets, the medium-pressure environment-friendly gas switch cabinet comprises an upper gas box and a lower gas box connected with the upper gas box, the outer walls of the upper gas box and the lower gas box are both provided with a plurality of outer reinforcing ribs, and the peripheries of the inner walls of the upper gas box and the lower gas box are both provided with a plurality of inner reinforcing ribs; a plurality of reinforcing beams are installed on the inner reinforcing ribs, and a plurality of notches are formed in the reinforcing beams. The outer reinforcing ribs and the inner reinforcing ribs are distributed at equal intervals, so that uniform support is provided, stress can be uniformly dispersed when the gas tank bears internal SF6 gas pressure, the phenomenon of local stress concentration is reduced, the inflation strength of the upper gas tank and the lower gas tank is guaranteed, and the upper gas tank and the lower gas tank are prevented from being deformed when being filled with SF6 gas.

Description

Technical Field

[0001] The invention relates to the technical field of gas switch cabinets, and in particular to a medium-voltage environmentally friendly gas switch cabinet. Background Art

[0002] Gas insulated switchgear is a switchgear that uses gas (such as sulfur hexafluoride SF6, nitrogen, etc.) as an insulating medium. It seals high-voltage components such as busbars, circuit breakers, disconnectors, power cables, etc. in a shell filled with lower gas pressure, and uses gas to insulate and protect various components of the power system. This equipment has many advantages such as space saving, safety and reliability, and low maintenance cost. However, the gas switchgear in the prior art still has at least the following problems:

[0003] 1. When the switch cabinet is gassed, the cabinet surface is easily deformed due to the pressure difference between the inside and outside, which greatly reduces the service life of the cabinet during long-term use; and the overall installation layout space utilization rate inside the switch cabinet is low, which makes it easy for the copper pipe to be arranged and installed to reduce the overlap surface, causing the problem of increased heat during operation.

[0004] 2. The current busbar installation inside the switch cabinet adopts a single busbar connection or a stacked method to splice the busbars. This will increase the heat generation when current passes through the busbar, which is not conducive to heat dissipation and is also not conducive to the layout of the busbar installation space inside the switch cabinet. Summary of the invention

[0005] The purpose of the present invention is to provide a medium-voltage environmentally friendly gas switch cabinet to solve the problems of deformation of the cabinet under pressure difference, internal space utilization, arrangement and installation of copper pipes, busbar heat dissipation and installation layout in the prior art.

[0006] To achieve the above object, the present invention proposes:

[0007] A medium-voltage environmentally friendly gas switch cabinet comprises an upper gas box and a lower gas box connected to the upper gas box, wherein a plurality of external reinforcing ribs are installed on the outer walls of the upper gas box and the lower gas box, a plurality of internal reinforcing ribs are installed around the inner walls of the upper gas box and the lower gas box, a plurality of reinforcing beams are installed on the inner reinforcing ribs, and a plurality of incisions are opened on the reinforcing beams; a plurality of first inner cone groups are arranged horizontally on the inner wall of the top of the upper gas box, the first inner cone group is composed of two first inner cones symmetrically distributed on the inner wall of the upper gas box, a conductive sheet is arranged inside the first inner cone, one end of the conductive sheet passes through the first inner cone, a first busbar is symmetrically arranged on both sides of the conductive sheet, two ends of the first busbar are respectively connected to two conductive sheets of the same first inner cone group, a gap is provided between two adjacent first busbars to form a socket, a copper tube is provided between the two adjacent first busbars, and the copper tube is inserted into the socket.

[0008] Preferably, a plurality of first through-hole groups are arranged at equal intervals on the surface of the first busbar, a second through-hole group is arranged at one end of the copper tube, the second through-hole group is adapted to the first through-hole group, and a plurality of copper tubes are correspondingly installed on the first through-hole groups of different first busbars.

[0009] Preferably, a second inner cone group is provided at the bottom of the upper air box, the second inner cone group is composed of a plurality of longitudinally arranged second inner cones, a cylindrical tube with a hollow structure is provided on the second inner cone, a connecting piece is connected to the top end of the cylindrical tube, the connecting piece is connected to one end of a copper tube, and the bending lengths of the copper tube are different.

[0010] Preferably, a third inner cone group is also provided at the bottom of the upper air box, and the third inner cone group is composed of a plurality of longitudinally arranged third inner cones. The bottom end of the third inner cone extends into the lower air box, and a copper guide is provided inside the third inner cone. A sleeve with a hollow structure is provided at the top of the third inner cone, one end of the copper guide is connected to the sleeve, and the second busbar and the third busbar are installed on both sides of the bottom of the other end.

[0011] Preferably, a plurality of circuit breaker switches are arranged inside the lower air box, a mounting groove is arranged above the circuit breaker switch, a conductive column is arranged inside the mounting groove, and one end of the second busbar is installed above the conductive column in contact.

[0012] Preferably, the second busbar and the third busbar are L-shaped, a first copper gasket is arranged between the second busbar and the third busbar, and the first copper gasket is installed directly above the conductive column.

[0013] Preferably, a fourth inner cone group, a fifth inner cone group and a sixth inner cone group are equidistantly arranged inside the lower air box, and the fourth inner cone group, the fifth inner cone group and the sixth inner cone group are respectively composed of a plurality of longitudinally arranged fourth inner cones, fifth inner cones and sixth inner cones, and the output end of the circuit breaker switch is connected to a plurality of busbar groups, and the busbar groups are overlapped above the fourth inner cone, the fifth inner cone and the sixth inner cone on the same horizontal direction.

[0014] Preferably, the busbar group consists of a fourth busbar and a fifth busbar arranged parallel to the fourth busbar, a second copper gasket is arranged between the fourth busbar and the fifth busbar, and the number of the second copper gasket is two, which are respectively installed at the head and tail ends of the fourth busbar and the fifth busbar; the fourth busbar and the fifth busbar are L-shaped, one end of the fifth busbar is connected to the output end of the circuit breaker switch, and the other end is connected to the conductive end of the sixth inner cone, and the fifth busbar is also overlapped on the conductive ends of the fourth inner cone and the fifth inner cone.

[0015] Preferably, a heat-conducting frame is provided on the top of the upper air box, the interior of the heat-conducting frame is a hollow structure and the bottom is open, and a plurality of heat-dissipating teeth are provided on the surface of the heat-conducting frame and the side of the lower air box.

[0016] Preferably, outer surfaces of both ends of the fourth busbar and the fifth busbar are silver-plated, wherein the silver plating thickness is 5um-10um.

[0017] Beneficial effects of the present invention:

[0018] 1. The outer and inner reinforcement ribs are arranged equidistantly, providing uniform support, so that when the gas box is subjected to the internal SF6 gas pressure, the stress can be evenly dispersed, the phenomenon of local stress concentration can be reduced, the inflation strength of the upper and lower gas boxes can be ensured, and the upper and lower gas boxes can be prevented from being deformed when filled with SF6 gas.

[0019] 2. The cutout is used to fit on the inner reinforcement ribs, thereby fixing multiple reinforcement beams at equal distances, further improving the inflation strength of the entire box. At the same time, the reinforcement beams can be used to divide the positions of the internal installation parts of the upper and lower air boxes, optimize the internal layout, enhance the convenience of maintenance, and facilitate the assembly and disassembly of the parts inside the upper and lower air boxes by the staff.

[0020] 3. The three-group copper tube connection method reduces the overlapping surface of the three groups of copper tubes, making the electric field generated by the copper tubes more uniform and stable when they are electrified, thus avoiding the aggravation of the heat generated by the copper tubes in the uneven electric field.

[0021] 4. The second busbar, the third busbar, the fourth busbar and the fifth busbar are all arranged in an L-shaped structure, which can facilitate the layout and installation of the internal busbars, improve the space utilization inside the box, and realize more connections and wiring in a limited space, effectively reducing the space occupied by electrical equipment or systems.

[0022] 5. The fourth busbar and the fifth busbar are connected by a combination of the second copper gasket and the third copper gasket. The second copper gasket and the third copper gasket are respectively distributed at the head and tail ends of the fourth busbar and the fifth busbar. This can ensure stable support at both ends of the busbar, and there will be gaps between the two busbars. These gaps allow air circulation, which helps to quickly dissipate the heat generated by the busbar during operation.

[0023] The features and advantages of the present invention will be described in detail through examples with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the overall internal structure of the present invention;

[0026] Figure 3 It is a schematic diagram of the structure of the upper air box and the lower air box of the present invention;

[0027] Figure 4 It is a schematic diagram of the internal structure of the upper air box and the lower air box of the present invention;

[0028] Figure 5 It is a schematic diagram of the internal reinforcing rib and reinforcing beam structure of the present invention;

[0029] Figure 6 Schematic diagram of the structure of the first inner cone, the second inner cone, etc. of the present invention Figure 1 ;

[0030] Figure 7 Schematic diagram of the structure of the first inner cone, the second inner cone, etc. of the present invention Figure 2 ;

[0031] Figure 8 Schematic diagram of the structure of the third inner cone, the fourth inner cone, etc. of the present invention Figure 1 ;

[0032] Fig. 9 Schematic diagram of the structure of the third inner cone, the fourth inner cone, etc. of the present invention Figure 2 .

[0033] : 1. upper air box; 2. lower air box; 3. outer reinforcement rib; 4. inner reinforcement rib; 5. reinforcement beam; 6. incision; 7. first inner cone; 8. conductive sheet; 9. first busbar; 10. copper tube; 11. first through hole group; 12. second through hole group; 13. second inner cone; 14. cylindrical tube; 15. connecting sheet; 16. third inner cone; 17. copper guide; 18. sleeve; 19. second busbar; 20. third busbar; 21. circuit breaker switch; 22. conductive column; 23. first copper gasket; 24. fourth inner cone; 25. fifth inner cone; 26. sixth inner cone; 27. fourth busbar; 28. fifth busbar; 29. ​​second copper gasket; 30. mounting groove; 31. heat conduction frame; 32. heat dissipation teeth. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0035] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices consistent with some aspects of the present application as detailed in the appended claims.

[0036] The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit this application. Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which the present invention belongs. The words "one" or "a" and the like used in the specification and claims of this application do not indicate a quantitative limitation, but indicate the existence of at least one. "Multiple" includes two, which is equivalent to at least two. "Including" or "including" and the like mean that the elements or objects appearing in front of "including" or "including" include the elements or objects listed after "including" or "including" and their equivalents, and do not exclude other elements or objects. "Connected" or "connected" and the like are not limited to physical or mechanical connections, and can include electrical connections, whether direct or indirect. The singular forms "one", "said" and "the" used in the specification and the appended claims of this application are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0037] Embodiment 1:

[0038] Please refer to Figure 1-Figure 4 A medium-voltage environmentally friendly gas switch cabinet includes an upper gas box 1 and a lower gas box 2 connected to the upper gas box 1. Multiple external reinforcing ribs 3 are installed on the outer walls of the upper gas box 1 and the lower gas box 2, and multiple internal reinforcing ribs 4 are installed around the inner walls of the upper gas box 1 and the lower gas box 2.

[0039] In the above scheme, the outer reinforcement ribs 3 and the inner reinforcement ribs 4 are arranged at equal distances, providing uniform support and significantly enhancing the stability and rigidity of the entire structure. This design enables the gas box to evenly disperse stress when it is subjected to the internal SF6 gas pressure, reduce the phenomenon of local stress concentration, ensure the inflation strength of the upper gas box 1 and the lower gas box 2, and prevent the upper gas box 1 and the lower gas box 2 from deforming when the SF6 gas is filled inside.

[0040] Further references Figure 5 A plurality of reinforcing beams 5 are installed on the inner reinforcing ribs 4 , and a plurality of cutouts 6 are opened on the reinforcing beams 5 .

[0041] In the above scheme, the incision 6 is used to fit over the inner reinforcing rib 4, so as to evenly distribute and fix a plurality of reinforcing beams 5, thereby further improving the inflation strength of the entire box body; at the same time, the reinforcing beams 5 can be used to divide the positions of the internal installation parts of the upper air box 1 and the lower air box 2, optimize the internal layout, enhance the convenience of maintenance, and facilitate the staff to assemble and disassemble the parts inside the upper air box 1 and the lower air box 2.

[0042] Please refer to Figure 2 , Figure 4 , Figure 6 and Figure 7 Three first inner cone 7 groups are arranged horizontally on the inner wall of the top of the upper air box 1. The first inner cone 7 group consists of two first inner cones 7 symmetrically distributed on the inner wall of the upper air box 1. A conductive sheet 8 is arranged inside the first inner cone 7. One end of the conductive sheet 8 passes through the first inner cone 7. A first busbar 9 is symmetrically arranged on both sides of the conductive sheet 8. The two ends of the first busbar 9 are respectively connected to the two conductive sheets 8 of the same first inner cone 7 group. There is a gap between two adjacent first busbars 9 to form a socket. A copper tube 10 is arranged between the two adjacent first busbars 9, and the copper tube 10 is inserted into the socket.

[0043] In the above scheme, the symmetrically arranged first busbars 9 have a small contact resistance and can effectively improve the large current carrying capacity. There is a gap between the symmetrical first busbars 9, and the gap is used to install the copper tube 10. The two ends of the copper tube 10 are flatly arranged, and one end of the copper tube 10 can be inserted into the socket formed by the gap between the first busbars 9.

[0044] Further references Figure 6 and Figure 7 Three first through hole groups 11 are arranged at equal intervals on the surface of the first busbar 9, and a second through hole group 12 is arranged at one end of the copper tube 10. The second through hole group 12 is adapted to the first through hole group 11, and the three copper tubes 10 are correspondingly installed on the first through hole groups 11 of different first busbars 9.

[0045] In the above scheme, that is, three copper tubes 10 are installed at equal intervals between different busbar sockets. The insertion of the copper tubes 10 not only enhances the connection strength between the first busbars 9, but also improves the stability of the entire structure through its rigid support, reduces vibration and prevents loosening. The equidistant distribution of the copper tubes 10 helps to reduce electromagnetic interference and electromagnetic noise because they can serve as part of the electromagnetic shielding to limit the electromagnetic field to a specific area.

[0046] It is feasible that corresponding positioning rods or copper columns are inserted into the first through hole group 11 and the second through hole group 12 to stabilize the installation of the first busbar 9 and the copper tube 10 .

[0047] Please refer to Figure 2 , Figure 4 , Figure 6 and Figure 7 A second inner cone 13 group is provided at the bottom of the upper air box 1, and the second inner cone 13 group consists of three longitudinally arranged second inner cones 13. A cylindrical tube 14 with a hollow structure is provided on the second inner cone 13. A connecting piece 15 is connected to the top of the cylindrical tube 14. The connecting piece 15 is connected to one end of the copper tube 10. The copper tube 10 is bent at different lengths, that is, the bending lengths of the copper tube 10 are different.

[0048] In the above scheme, please refer to Figure 7 , the first inner cone group is divided into three groups a, b, and c, and the three first busbars 9 connected to the three first inner cone groups a, b, and c respectively have first through hole groups 11 of a1, a2, a3, b1, b2, b3, c1, c2, and c3; the second inner cone 13 is divided into three groups d, e, and f. One end of the copper tube 10 on the right is connected to the first through hole group 11 (a1), and the other end is connected to the connecting piece 15 of the second inner cone 13 (d); one end of the copper tube 10 in the middle is connected to the first through hole group 11 (b2), and the other end is connected to the connecting piece 15 of the second inner cone 13 (e); one end of the copper tube 10 on the left is connected to the first through hole group 11 (c3), and the other end is connected to the connecting piece 15 of the second inner cone 13 (f). And the bending length of the copper tube 10 on the right is greater than the bending length of the copper tube 10 in the middle, and the bending length of the copper tube 10 on the left is greater than the bending length of the copper tube 10 on the left. The copper tubes 10 are bent at different lengths to reduce the overlapping surfaces of the three copper tubes 10 , making the electric field generated by the copper tubes 10 more uniform and stable when electricity is applied to the copper tubes 10 , thereby preventing the heat generated by the copper tubes 10 from being aggravated in an uneven electric field.

[0049] Please refer to Figure 2 and Figure 4 A third inner cone 16 group is also provided at the bottom of the upper air box 1. The third inner cone 16 group consists of three third inner cones 16 arranged longitudinally. The bottom end of the third inner cone 16 extends into the lower air box 2. A copper guide 17 is provided inside the third inner cone 16. A sleeve 18 with a hollow structure is provided on the top of the third inner cone 16. One end of the copper guide 17 is connected to the sleeve 18, and the second busbar 19 and the third busbar 20 are installed on both sides of the bottom of the other end.

[0050] In the above scheme, the sleeve 18 combined with the cylindrical tube 14 can be used to conveniently connect and insert the copper column to stabilize the circuit connection between the third inner cone 16 and the second inner cone 13. No other excessive connection nodes are required to connect the circuit, which reduces the generation of connection nodes and reduces the impact of contact resistance.

[0051] Please refer to Figure 2 , Figure 4 and Figure 8 Three circuit breaker switches 21 are arranged inside the lower air box 2, a mounting groove 30 is arranged above the circuit breaker switch 21, a conductive column 22 is arranged inside the mounting groove 30, and one end of the second busbar 19 is installed above the conductive column 22, so as to connect the circuit of the copper guide 17 to the circuit breaker switch 21.

[0052] In the above scheme, the circuit of the upper air box 1 can be connected with the circuit of the lower air box 2 through the cooperation of the third inner cone 16 and the circuit breaker switch 21; the third inner cone 16 extends into the lower air box 2, and the second bus bar 19 and the third bus bar 20 are installed at both ends of the bottom of the copper guide 17 to connect the circuit loops of the upper air box 1 and the lower air box 2.

[0053] Further references Figure 8 The second busbar 19 and the third busbar 20 are L-shaped, and a first copper gasket 23 is arranged between the second busbar 19 and the third busbar 20 . The first copper gasket 23 is installed directly above the conductive column 22 .

[0054] In the above scheme, when the second busbar 19 and the third busbar 20 are clamped at both ends of the bottom of the copper guide 17, a gap is generated, that is, the first copper gasket 23 is installed between the gaps close to the top of the conductive column 22, so as to stabilize the splicing installation between the second busbar 19 and the third busbar 20, and the first copper gasket 23 connects the tail ends of the second busbar 19 and the third busbar 20 to the top of the conductive column 22. The L-shaped structural setting can facilitate the layout and installation of internal electrical components, improve the space utilization inside the box, and can achieve more connections and wiring in a limited space, effectively reducing the space occupied in electrical equipment or systems.

[0055] Please refer to Figure 2 , Figure 4 , Figure 8 and Fig. 9 The lower air box 2 has a fourth inner cone 24 group, a fifth inner cone 25 group and a sixth inner cone 26 group arranged equidistantly inside. The fourth inner cone 24 group, the fifth inner cone 25 group and the sixth inner cone 26 group are respectively composed of three fourth inner cones 24, fifth inner cones 25 and sixth inner cones 26 arranged longitudinally. The output end of the circuit breaker switch 21 is connected to three busbar groups, which are overlapped above the fourth inner cone 24, the fifth inner cone 25 and the sixth inner cone 26 in the same horizontal direction. The busbar group is composed of a fourth busbar 27 and a fifth busbar 28 arranged parallel to the fourth busbar 27. The fourth busbar 27 and the fifth busbar 28 are arranged parallel to the fourth busbar 27. The busbar 28 is L-shaped, one end of the fifth busbar 28 is connected to the output end of the circuit breaker switch 21, and the other end is connected to the conductive end of the sixth inner cone 26. The fifth busbar 28 is also overlapped on the conductive ends of the fourth inner cone 24 and the fifth inner cone 25; a second copper gasket 29 is arranged between the fourth busbar 27 and the fifth busbar 28, and the number of the second copper gaskets 29 is two, which are respectively installed at the head and tail ends of the fourth busbar 27 and the fifth busbar 28, that is, one of the second copper gaskets 29 is close to the third inner cone 16, and the other second copper gasket 29 is close to the output end of the circuit breaker switch 21.

[0056] In the above scheme, the L short side of the fifth busbar 28 is connected to the output end of the circuit breaker switch 21, and the fourth inner cone 24 is installed at the tail end of the L long side. The fifth inner cone 25 and the sixth inner cone 26 are connected at the L long side interval. The fourth busbar 27 and the fifth busbar 28 are arranged in an L-shaped structure, and multiple inner cones can be arranged and installed respectively, and the circuits of the inner cones are uniformly connected to the circuit breaker switch 21. The fourth busbar 27 and the fifth busbar 28 are arranged in parallel, which effectively saves installation space and makes the overall structure more compact. The fourth busbar 27 and the fifth busbar 28 are combined and spliced ​​by the second copper gasket 29, so that a gap is generated between the fourth busbar 27 and the fifth busbar 28, so that heat accumulation can be avoided when the busbar is working.

[0057] The two second copper gaskets 29 are respectively distributed at the head and tail ends of the fourth busbar 27 and the fifth busbar 28, so that the two ends of the busbar can be stably supported, and there will be gaps between the two busbars. These gaps allow air to circulate, which helps to quickly dissipate the heat generated by the busbars during operation. Compared with a completely closed structure, this design can more effectively reduce the temperature of the busbar, improve its overload capacity and operating stability. It also reduces the accumulation of heat between the busbars, making it easier for the heat to be dissipated to the external environment through air convection and radiation, thereby reducing the overall temperature rise of the busbar system.

[0058] It is worth noting that the busbar surface is provided with corresponding holes, which can be directly fastened with nuts, making installation convenient.

[0059] Embodiment 2:

[0060] Please refer to Figure 1-Figure 3 A heat-conducting frame 31 is arranged on the top of the upper air box 1. The interior of the heat-conducting frame 31 is a hollow structure with an opening at the bottom. A plurality of heat-dissipating teeth 32 are arranged on the surface of the heat-conducting frame 31 and the side of the lower air box 2. The surface of the heat-dissipating teeth 32 presents a corrugated structure.

[0061] In the above scheme, one side of the heat-conducting frame 31 is hollow and connected to the interior of the upper air box 1. The hollow part can reserve some space to facilitate the installation and layout of the internal busbar and copper tube 10. At the same time, the heat generated inside the upper air box 1 is absorbed by the heat-conducting frame 31, and the heat-conducting frame 31 is synchronously transferred to the heat dissipation teeth 32. The heat dissipation teeth 32 increase the heat dissipation area and improve the heat dissipation efficiency.

[0062] Embodiment 3:

[0063] The outer surfaces of both ends of the fourth busbar 27 and the fifth busbar 28 are silver-plated, wherein the thickness of the silver plating is 5um-10um.

[0064] In the above scheme, the silver plating thickness is 8um, which can significantly improve the conductivity of the busbar, reduce resistance, and thus improve the current transmission efficiency in the circuit. Silver has strong corrosion resistance and can effectively resist erosion by environmental factors such as oxidation and corrosion. After the busbar is silver-plated, the silver layer formed on its surface can effectively protect the copper substrate from corrosion, thereby extending the service life of the busbar.

[0065] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A medium-voltage environmentally friendly gas switch cabinet, comprising an upper gas box and a lower gas box connected to the upper gas box, characterized in that: A plurality of external reinforcing ribs are installed on the outer walls of the upper air box and the lower air box, a plurality of internal reinforcing ribs are installed around the inner walls of the upper air box and the lower air box, a plurality of reinforcing beams are installed on the inner reinforcing ribs, and a plurality of incisions are opened on the reinforcing beams; a plurality of first inner cone groups are arranged horizontally on the inner wall of the top of the upper air box, the first inner cone group is composed of two first inner cones symmetrically distributed on the inner wall of the upper air box, a conductive sheet is arranged inside the first inner cone, one end of the conductive sheet passes through the first inner cone, a first busbar is symmetrically arranged on both sides of the conductive sheet, two ends of the first busbar are respectively connected to two conductive sheets of the same first inner cone group, a gap is provided between two adjacent first busbars to form a socket, a copper tube is provided between two adjacent first busbars, and the copper tube is inserted into the socket.

2. The medium voltage environmentally friendly gas switch cabinet according to claim 1 is characterized in that: The surface of the first busbar is provided with a plurality of first through-hole groups at equal intervals, one end of the copper tube is provided with a second through-hole group, the second through-hole group is adapted to the first through-hole group, and the plurality of copper tubes are correspondingly installed on the first through-hole groups of different first busbars.

3. The medium voltage environmentally friendly gas switch cabinet according to claim 1 is characterized in that: A second inner cone group is arranged at the bottom of the upper air box, and the second inner cone group is composed of a plurality of second inner cones arranged longitudinally. A cylindrical tube with a hollow structure is arranged on the second inner cone, and a connecting piece is connected to the top end of the cylindrical tube, and the connecting piece is connected to one end of a copper tube, and the bending lengths of the copper tube are different.

4. The medium voltage environmentally friendly gas switch cabinet according to claim 1 or 3, characterized in that: A third inner cone group is also provided at the bottom of the upper air box, and the third inner cone group is composed of a plurality of third inner cones arranged longitudinally. The bottom end of the third inner cone extends into the lower air box, and a copper guide is provided inside the third inner cone. A sleeve with a hollow structure is provided at the top of the third inner cone, one end of the copper guide is connected to the sleeve, and the second busbar and the third busbar are installed on both sides of the bottom of the other end.

5. The medium voltage environmentally friendly gas switch cabinet according to claim 4 is characterized in that: A plurality of circuit breaker switches are arranged inside the lower air box, a mounting groove is arranged above the circuit breaker switch, a conductive column is arranged inside the mounting groove, and one end of the second busbar is contact-mounted above the conductive column.

6. The medium voltage environmentally friendly gas switch cabinet according to claim 5 is characterized in that: The second busbar and the third busbar are L-shaped, a first copper gasket is arranged between the second busbar and the third busbar, and the first copper gasket is installed directly above the conductive column.

7. The medium voltage environmentally friendly gas switch cabinet according to claim 5, characterized in that: A fourth inner cone group, a fifth inner cone group and a sixth inner cone group are arranged equidistantly inside the lower air box, and the fourth inner cone group, the fifth inner cone group and the sixth inner cone group are respectively composed of a plurality of fourth inner cones, fifth inner cones and sixth inner cones arranged longitudinally; an output end of the circuit breaker switch is connected to a plurality of busbar groups, and the busbar groups are overlapped above the fourth inner cone, the fifth inner cone and the sixth inner cone on the same horizontal direction.

8. The medium voltage environmentally friendly gas switch cabinet according to claim 7 is characterized in that: The busbar group consists of a fourth busbar and a fifth busbar arranged in parallel with the fourth busbar, a second copper gasket is arranged between the fourth busbar and the fifth busbar, and the number of the second copper gaskets is two, which are respectively installed at the head and tail ends of the fourth busbar and the fifth busbar; the fourth busbar and the fifth busbar are L-shaped, one end of the fifth busbar is connected to the output end of the circuit breaker switch, and the other end is connected to the conductive end of the sixth inner cone, and the fifth busbar is also overlapped on the conductive ends of the fourth inner cone and the fifth inner cone.

9. The medium voltage environmentally friendly gas switch cabinet according to claim 1, characterized in that: A heat-conducting frame is arranged on the top of the upper air box. The interior of the heat-conducting frame is a hollow structure with an opening at the bottom. A plurality of heat-dissipating teeth are arranged on the surface of the heat-conducting frame and the side surface of the lower air box.

10. The medium voltage environmentally friendly gas switch cabinet according to claim 8, characterized in that: The outer surfaces of both ends of the fourth busbar and the fifth busbar are silver-plated, wherein the silver plating thickness is 5um-10um.

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