A fire-resistant and flame-retardant plug-in double-shell busway

Abstract

The present invention belongs to the technical field of bus ducts, and particularly relates to a fire-resistant and flame-retardant plug-in double-shell bus duct, which includes a main body mechanism comprising an outer shell A and an outer shell B. An inner shell A and an inner shell B are arranged inside the outer shell A and the outer shell B. A bus main body is installed inside the inner shell A and the inner shell B through a positioning frame. Connection columns are arranged on both sides of the inner shell A and the inner shell B. A connection seat is arranged at the inner bottom of the outer shell B. The problem to be solved by the present invention is that when the double-shell plug-in bus ducts are used, they are plugged together, and their assembly is not stable enough during installation and their fire-resistant and flame-retardant effects are relatively poor. Through the designed main body mechanism, during use, the inner shell A and the inner shell B are installed by clamping the outer shell A and the outer shell B. The fire-resistant and flame-retardant ability of the bus duct is enhanced by the fire-resistant and flame-retardant plates outside the inner shell A and the inner shell B, and the installation of the inner shell A and the inner shell B is facilitated by the outer shell A and the outer shell B.

Description

Technical Field

[0001] The present invention belongs to the technical field of bus ducts, and particularly relates to a fire-resistant and flame-retardant plug-in double-shell bus duct. Background Art

[0002] As a key power distribution device in the power system, plug-in bus ducts are widely used in the fields of current transmission and power distribution. Traditional bus ducts usually adopt a single-shell structure, which is made of conductive materials such as copper or aluminum, and realizes plug-in connection through modular design to meet the flexibility requirements of installation and maintenance. However, the plug-in bus ducts in the prior art have the following significant problems:

[0003] 1. Insufficient fire-resistant and flame-retardant performance: In high-temperature or fire environments, the fire-resistant performance of the shell material and internal insulation components of traditional bus ducts is poor, which easily leads to structural damage or power interruption, and it is difficult to meet the application scenario requirements of high safety standards;

[0004] 2. Low heat dissipation efficiency: A large amount of heat is generated by the current load during the long-term operation of the bus duct, and the existing heat dissipation designs mostly rely on natural convection or simple air cooling, with limited heat dissipation effects, which easily causes local overheating, accelerates the aging of insulation materials, and even poses safety hazards;

[0005] 3. Poor installation stability: The plug-in connection structure lacks effective mechanical fixation and anti-seismic design during assembly, and is easily loosened due to external forces or vibrations, affecting the electrical conductivity and system reliability;

[0006] 4. Complex double-shell structure: The assembly process of existing double-shell bus ducts is cumbersome, and the positioning and fixing methods between the inner and outer shells are not efficient enough, increasing the difficulty of installation and maintenance;

[0007] Therefore, it is necessary to design a fire-resistant and flame-retardant plug-in double-shell bus duct to solve the above problems. Summary of the Invention

[0008] The purpose of the present invention is to provide a fire-resistant and flame-retardant plug-in double-shell bus duct to solve the problems raised in the above background art.

[0009] To achieve the above purpose, the present invention provides the following technical solution: A fire-resistant and flame-retardant plug-in double-shell bus duct, comprising:

[0010] A main body mechanism, including an outer shell A and an outer shell B. The inner sides of the outer shell A and the outer shell B are provided with an inner shell A and an inner shell B. A bus main body is installed on the inner sides of the inner shell A and the inner shell B through a positioning frame. Connecting columns are provided on both sides of the inner shell A and the inner shell B. A connecting seat is provided at the bottom of the inner side of the outer shell B. The lower ends of the connecting columns pass through the outer shell A, the inner shell A, and the inner shell B through connecting perforations and are screwed to the connecting seat;

[0011] The heat dissipation mechanism includes a heat insulation plate installed between the outer casing A and the inner casing B. A circulation pump is provided on the outer sides of the outer casing A and the outer casing B. The circulation pump is communicated with the inner side of the heat insulation plate. A heat dissipation rack is arranged between the circulation pumps. A heat conduction tube is provided on the outer side of the heat insulation plate, and the heat conduction tube is located between the busbar bodies.

[0012] The hoisting mechanism includes a hoisting pallet, hoisting plates fixed at both ends of the hoisting pallet, and a hoisting pressing plate installed between the hoisting plates. The outer casing A and the outer casing B are installed on the upper side of the hoisting pallet. The hoisting pressing plate presses on the outer casing A. Hoisting grooves are formed on the surfaces of the outer casing A and the outer casing B, and the hoisting pallet and the hoisting pressing plate are clamped in the hoisting grooves.

[0013] Preferably, the inner casing A includes a connecting frame, a top plate and side plates. The top plate and the side plates are respectively installed on both sides of the connecting frame. A square shape is formed among the connecting frame, the top plate and the side plates. The positioning frame and the busbar body are installed in the connecting frame, the top plate and the side plates, and the structure of the inner casing B is the same as that of the inner casing A.

[0014] Preferably, fireproof and flame-retardant plates are provided on the inner sides of the top plate and the side plates. The connecting frame, the top plate, the side plates and the fireproof and flame-retardant plates are all fitted and installed on the inner walls of the outer casing A and the outer casing B.

[0015] Preferably, a socket is installed on the inner side of one end of the outer casing A. A partition plate is provided on the inner side of the outer casing A, and the partition plate is located between the busbar bodies. A communicating plate is provided on the surface of the partition plate. A pressing groove is formed on the inner side of the socket, and a pressing plate is slidably installed in the pressing groove. A pressing screw is screwed on the outer side of the outer casing A, and one end of the pressing screw presses on the pressing plate.

[0016] Preferably, a splicing protrusion is provided on one side of the outer casing A, and a splicing groove is provided on one side of the outer casing B. The outer casing A and the outer casing B are clamped through the splicing protrusion and the splicing groove.

[0017] Preferably, communication ports are provided at both ends of the heat insulation plate. One end of the circulation pump is communicated with the inner side of the heat conduction tube through the communication port. A heat dissipation tube is provided on the inner side of the heat dissipation rack. The other end of the circulation pump is communicated with the end of the heat dissipation tube. Heat conduction sheets are provided inside the heat conduction tube, and a diversion plate is provided at one end of the heat conduction tube.

[0018] Preferably, heat insulation sheets are provided inside the heat dissipation rack. The heat dissipation tube is located on one side of the heat insulation sheets. A heat conduction film is attached to one side of the heat dissipation tube. A heat conduction plate is provided on the inner side of the heat dissipation rack. Both sides of the heat conduction film are respectively attached to the heat dissipation tube and the heat conduction plate. A heat dissipation fin is fixedly installed on one side of the heat conduction plate, and a heat dissipation fan is provided on one side of the heat dissipation rack.

[0019] Preferably, the cross-sectional shape of the heat dissipation fin is set to be V-shaped, and the tip direction of the heat dissipation fin corresponds to the position of the heat dissipation fan. Heat dissipation protrusions are provided on the surface of the heat dissipation fin.

[0020] Preferably, an installation groove is provided on one side of the heat dissipation rack, and installation strips are provided on the outer sides of the outer housing A and the outer housing B. The installation groove is engaged with the installation strip.

[0021] Preferably, an adjusting screw rod is rotatably installed inside the lifting plate. The lower end of the adjusting screw rod is rotatably installed inside the lifting and supporting plate and fixedly installed with a driving worm gear. Adjusting knobs are provided at both ends of the lifting and supporting plate. Adjusting nuts are fixedly installed at both ends of the lifting and pressing plate. The adjusting nuts are screwed onto the adjusting screw rod through threads; transmission worm gears are rotatably installed inside both ends of the lifting and supporting plate. One end of the transmission worm gear passes through the lifting and supporting plate and is fixedly installed with an adjusting knob.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] 1. Through the designed main body mechanism, when in use, the inner housing A and the inner housing B are installed by the engagement of the outer housing A and the outer housing B. The fire-resistant and flame-retardant plates outside the inner housing A and the inner housing B enhance the fire-resistant and flame-retardant ability of the busbar trunking, and the outer housing A and the outer housing B facilitate the quick installation of the inner housing A and the inner housing B.

[0024] 2. Through the designed heat dissipation mechanism, when in use, heat is absorbed by installing the heat conduction tube and the heat absorption medium between the busbar main bodies, and then the heat absorption medium is pumped by the circulating pump to flow inside the heat conduction tube and the heat dissipation rack, so as to quickly take out the heat for dissipation.

[0025] 3. Through the designed hoisting mechanism, when in use, the hoisting mechanism and the heat dissipation mechanism are staggeredly installed. The driving worm gear and the driving worm gear drive to make the hoisting and pressing plate and the hoisting and supporting plate clamp and install the main body mechanism more stably, and various heights of busbar trunkings can be hoisted as needed. The hoisting and pressing plate and the hoisting and supporting plate are engaged through the hoisting groove, so as to ensure more stable hoisting and installation of the outer housing A and the outer housing B during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of the present invention;

[0027] Figure 2 is a schematic cross-sectional structural diagram of the present invention;

[0028] Figure 3 is a schematic structural diagram of the heat conduction copper tube of the present invention;

[0029] Figure 4 is a schematic structural diagram of the heat dissipation fin of the present invention;

[0030] Figure 5 is a schematic structural diagram of the heat dissipation rack of the present invention;

[0031] Figure 6Schematic diagram of the heat sink structure of the present invention;

[0032] Figure 7 Schematic diagram of the connection structure of the present invention;

[0033] Figure 8 Schematic diagram of the hoisting mechanism structure of the present invention;

[0034] Figure 9 Schematic diagram of the plug-in structure of the present invention;

[0035] In the figure: 1. Main body mechanism; 11. Outer shell A; 111. Plug socket; 112. Partition board; 113. Connecting plate; 114. Compression groove; 115. Compression screw; 116. Compression plate; 12. Outer shell B; 13. Inner shell A; 131. Connecting frame; 132. Top plate; 133. Side plate; 134. Connecting column; 135. Connecting seat; 136. Connecting through hole; 14. Inner shell B; 15. Fireproof and flame-retardant board; 16. Splicing protrusion; 17. Splicing groove; 18. Bus bar main body; 2. Heat dissipation mechanism; 21. Heat conduction pipe; 22. Positioning frame; 23. Heat insulation board; 24. Circulation pump; 25. Heat dissipation frame; 251. Heat dissipation pipe; 252. Heat insulation sheet; 253. Heat conduction film; 254. Heat conduction plate; 255. Heat sink; 256. Heat dissipation fan; 257. Installation groove; 258. Installation strip; 259. Heat dissipation protrusion; 26. Heat conduction sheet; 27. Deflector; 28. Communication port; 3. Hoisting mechanism; 31. Hoisting groove; 32. Hoisting support plate; 33. Lifting plate; 34. Hoisting pressure plate; 35. Adjusting screw; 36. Adjusting nut; 37. Adjusting knob; 38. Driving worm; 39. Driving worm gear. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] Embodiment 1: Please refer to Figures 1 to 9 , the present invention provides a technical solution: a fireproof and flame-retardant plug-in double-shell busway, including a main body mechanism 1, a heat dissipation mechanism 2 is arranged on one side of the main body mechanism 1, and a hoisting mechanism 3 is arranged at the end of the main body mechanism 1;

[0038] The main body mechanism 1 includes a housing A11 and a housing B12. An inner housing A13 and an inner housing B14 are arranged inside the housing A11 and the housing B12. A busbar main body 18 is installed inside the inner housing A13 and the inner housing B14 through a positioning frame 22. Connecting columns 134 are arranged on both sides of the inner housing A13 and the inner housing B14. A connecting seat 135 is arranged at the bottom inside the housing B12. The lower end of the connecting column 134 passes through the housing A11, the inner housing A13 and the inner housing B14 through a connecting perforation 136 and is screwed to the connecting seat 135; the inner housing A13 includes a connecting frame 131, a top plate 132 and a side plate 133. The top plate 132 and the side plate 133 are respectively installed on both sides of the connecting frame 131. A square is formed among the connecting frame 131, the top plate 132 and the side plate 133. The positioning frame 22 and the busbar main body 18 are installed inside the connecting frame 131, the top plate 132 and the side plate 133. And the structure of the inner housing B14 is the same as that of the inner housing A13. The inner housing A13 and the inner housing B14 are formed by the connecting frame 131, the top plate 132 and the side plate 133. The positioning frame 22 and the busbar main body 18 are installed inside the inner housing A13 and the inner housing B14; fireproof and flame-retardant plates 15 are arranged on the inner sides of the top plate 132 and the side plate 133. The connecting frame 131, the top plate 132, the side plate 133 and the fireproof and flame-retardant plates 15 are all fitted and installed on the inner walls of the housing A11 and the housing B12 to enhance the fireproof and flame-retardant effect of the busbar trough through the fireproof and flame-retardant plates 15;

[0039] A socket 111 is installed inside one end of the housing A11. A partition 112 is arranged inside the housing A11. The partition 112 is located between the busbar main bodies 18. A communicating plate 113 is arranged on the surface of the partition 112. A pressing groove 114 is formed inside the socket 111. A pressing plate 116 is slidably installed inside the pressing groove 114. A pressing screw 115 is screwed on the outside of the housing A11. One end of the pressing screw 115 presses on the pressing plate 116. When the busbar troughs are plugged, the housing A11 and the housing B12 are butted. And the socket 111 is installed inside the housing A11 and the housing B12. The busbar main bodies 18 are installed between the partitions 112. By screwing the pressing screw 115 on the housing A11 and the housing B12, and the pressing screw 115 passes through the socket 111 and presses on the pressing plate 116, the pressing plate 116 presses on the busbar main body 18, and the busbar main body 18 presses on the communicating plate 113 to be connected;

[0040] The heat dissipation mechanism 2 includes a heat insulation plate 23 installed between the inner housing A13 and the inner housing B14. A circulation pump 24 is provided on the outer sides of the outer housing A11 and the outer housing B12. The circulation pump 24 is communicated with the inner side of the heat insulation plate 23. A heat dissipation rack 25 is provided between the circulation pumps 24. A heat conduction pipe 21 is provided on the outer side of the heat insulation plate 23, and the heat conduction pipe 21 is located between the busbar bodies 18. A splicing protrusion 16 is provided on one side of the outer housing A11, and a splicing groove 17 is provided on one side of the outer housing B12. The outer housing A11 and the outer housing B12 are clamped through the splicing protrusion 16 and the splicing groove 17, and the outer housing A11 and the outer housing B12 are clamped and positioned and spliced through the splicing protrusion 16 and the splicing groove 17. An installation groove 257 is provided on one side of the heat dissipation rack 25, and installation strips 258 are provided on the outer sides of the outer housing A11 and the outer housing B12. The installation groove 257 is clamped on the installation strip 258. When installing, the heat dissipation rack 25 is installed on the outer sides of the outer housing A11 and the outer housing B12 through the clamping of the installation strip 258 and the installation groove 257, and while installing the heat dissipation rack 25, the connection between the outer housing A11 and the outer housing B12 is made more stable.

[0041] As can be seen from the above description, the present invention has the following beneficial effects: When in use, the inner housing A13 and the inner housing B14 are installed by clamping the outer housing A11 and the outer housing B12. The fireproof and flame-retardant ability of the busbar duct is enhanced by the fireproof and flame-retardant plates 15 outside the inner housing A13 and the inner housing B14, and the inner housing A13 and the inner housing B14 can be conveniently and quickly installed through the outer housing A11 and the outer housing B12.

[0042] Embodiment 2: Please refer to Figures 1 to 8As shown, on the basis of the first embodiment, the present invention provides a technical solution: communication ports 28 are provided at both ends of the heat insulation plate 23. One end of the circulation pump 24 is communicated with the inner side of the heat conduction tube 21 through the communication port 28. A heat dissipation tube 251 is provided inside the heat dissipation rack 25. The other end of the circulation pump 24 is communicated with the end of the heat dissipation tube 251. Heat conduction sheets 26 are provided inside the heat conduction tube 21. A flow guide plate 27 is provided at one end of the heat conduction tube 21. When in use, the circulation pump 24 operates to make the heat conduction medium flow in the heat dissipation tube 251 and the heat conduction tube 21. The heat conduction tube 21 cooperates with the heat conduction sheets 26 to direct the heat to the internal heat conduction medium, so as to export the heat for dissipation; heat insulation sheets 252 are provided inside the heat dissipation rack 25. The heat dissipation tube 251 is located on one side of the heat insulation sheet 252. A heat conduction film 253 is attached to one side of the heat dissipation tube 251. The horizontal heat conduction effect of the heat conduction graphite film is used to accelerate heat conduction. A heat conduction plate 254 is provided inside the heat dissipation rack 25. Both sides of the heat conduction film 253 are respectively attached to the heat dissipation tube 251 and the heat conduction plate 254. A heat dissipation fin 255 is fixedly installed on one side of the heat conduction plate 254. A heat dissipation fan 256 is provided on one side of the heat dissipation rack 25. When in use, the operation of the heat dissipation fan 256 and the air flow and the heat dissipation fins 255 accelerate the heat dissipation effect to ensure better heat dissipation; the cross-sectional shape of the heat dissipation fins 255 is set to a V shape, and the tip direction of the heat dissipation fins 255 corresponds to the position of the heat dissipation fan 256. Heat dissipation protrusions 259 are provided on the surface of the heat dissipation fins 255. When in use, it is convenient for the air flow to flow, and the heat dissipation is accelerated in cooperation with the heat dissipation protrusions 259.

[0043] For the heat dissipation mechanism 2 adopting the above technical solution, when in use, heat is absorbed through the heat conduction tube 21 and the heat absorption medium installed between the bus bar bodies 18, and then the heat absorption medium is pumped by the circulation pump 24 to flow in the heat conduction tube 21 and the heat dissipation rack 25, so as to quickly take out the heat for dissipation.

[0044] Further, reference can be made to Figure 1 and Figure 9, the hoisting mechanism 3 includes a hoisting pallet 32, hoisting plates 33 fixed at both ends of the hoisting pallet 32, and a hoisting pressure plate 34 installed between the hoisting plates 33. The outer housing A11 and the outer housing B12 are installed on the upper side of the hoisting pallet 32. The hoisting pressure plate 34 presses on the outer housing A11. Hoisting grooves 31 are formed on the surfaces of the outer housing A11 and the outer housing B12. The hoisting pallet 32 and the hoisting pressure plate 34 are engaged in the hoisting grooves 31. The hoisting pallet 32 is installed on the lower side of the outer housing B12 through the hoisting grooves 31, and the hoisting pressure plate 34 is pressed down into the hoisting groove 31 on the upper side of the outer housing A11 for installation. A regulating screw 35 is rotatably installed inside the hoisting plate 33. The lower end of the regulating screw 35 is rotatably installed inside the hoisting pallet 32 and fixedly installed with a transmission worm gear 39. Transmission worm shafts 38 are rotatably installed inside both ends of the hoisting pallet 32. One end of the transmission worm shaft 38 passes through the hoisting pallet 32 and is fixedly installed with a regulating knob 37. Adjusting nuts 36 are fixedly installed at both ends of the hoisting pressure plate 34. The adjusting nuts 36 are screwed onto the regulating screw 35 through threads. Rotating the regulating knob 37 drives the regulating screw 35 to rotate in cooperation with the transmission of the transmission worm shaft 38 and the transmission worm gear 39. The regulating screw 35 drives the adjusting nuts 36 and the hoisting pressure plate 34 to descend.

[0045] For the hoisting mechanism 3 adopting the above technical solution, when in use, the hoisting mechanism 3 and the heat dissipation mechanism 2 are installed in a staggered position. The hoisting pressure plate 34 and the hoisting pallet 32 are driven by the transmission of the transmission worm shaft 38 and the transmission worm gear 39 to clamp and install the main body mechanism 1 more stably, and the busbar with various heights can be hoisted as required. The hoisting pressure plate 34 and the hoisting pallet 32 are engaged through the hoisting grooves 31, so as to ensure more stable hoisting and installation of the outer housing A11 and the outer housing B12.

[0046] Working principle and usage process of the present invention: When in use, the inner housing A13 and the inner housing B14 are formed by the connecting frame 131, the top plate 132 and the side plate 133. The positioning frame 22 and the busbar body 18 are installed in the inner housing A13 and the inner housing B14. The fireproof and flame-retardant board 15 is snap-fitted and installed on the outer sides of the inner housing A13 and the inner housing B14. Then, the inner housing A13 and the inner housing B14 are superposed and installed in the outer housing B12 and the outer housing A11. The heat insulation board 23 is installed between the inner housing A13 and the inner housing B14. The heat conduction tubes 21 on the outer side of the heat insulation board 23 are inserted into the inner housing A13 and the inner housing B14. The heat insulation board 23 is located between the busbar bodies 18 and is in contact with the surfaces of the busbar bodies 18. Then, the outer housing A11 and the outer housing B12 are snap-fitted and spliced through the splicing protrusions 16 and the splicing grooves 17. Then, one end of the connecting column 134 passes through the outer housing A11, the inner housing A13 and the inner housing B14, and one end of the connecting column 134 is screwed into the connecting seat 135, so that the outer housing A11 and the outer housing B12 clamp and fix the inner housing A13 and the inner housing B14. The heat dissipation frame 25 is installed on the outer sides of the outer housing A11 and the outer housing B12 by snap-fitting through the installation strip 258 and the installation groove 257. While installing the heat dissipation frame 25, the connection between the outer housing A11 and the outer housing B12 is ensured to be more stable. Then, the circulation pump 24 is installed at the end of the heat dissipation frame 25, so that one end of the circulation pump 24 passes through the outer housing A11, the inner housing A13 and the inner housing B14 and is communicated with the communication port 28. The other end of the circulation pump 24 is communicated with one end of the heat dissipation tube 251. The inner housing A13 and the inner housing B14 are installed in the outer housing A11 and the outer housing B12. The busbar body 18 is installed between the partition plates 112. By screwing the compression screw 115 on the outer housing A11 and the outer housing B12, and the compression screw 115 passes through the plug-in seat 111 and presses on the compression plate 116, so that the compression plate 116 presses on the busbar body 18, and the busbar body 18 presses on the communication plate 113 to be communicated. Then, the hoisting support plate 32 is installed under the outer housing B12 through the hoisting groove 31. During hoisting, the adjusting knob 37 is rotated to drive the adjusting screw 35 to rotate through the transmission of the transmission worm 38 and the transmission worm wheel 39. The adjusting screw 35 drives the adjusting nut 36 and the hoisting pressing plate 34 to descend, so that the hoisting pressing plate 34 presses down into the hoisting groove 31 on the upper side of the outer housing A11, thus ensuring that the installation of the outer housing A11 and the outer housing B12 is more stable. When in use, the busbar body 18 generates heat. The heat is guided to the internal heat conduction medium through the heat conduction tube 21 and the heat conduction sheet 26. Then, the heat conduction medium flows in the heat dissipation tube 251 and the heat conduction tube 21 by the operation of the circulation pump 24. The heat is conducted outward through the heat conduction film 253 and the heat conduction plate 254, and the operation of the heat dissipation fins 255 and the heat dissipation fan 256 is coordinated to accelerate the outward heat dissipation.

[0047] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0048] As described above, it is only used to illustrate the technical solution of the present invention rather than to limit it. Other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solution of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A fire-resistant and flame-retardant plug-in double-shell busway, characterized in that, Comprising: A main body mechanism (1), including an outer housing A (11) and an outer housing B (12). An inner housing A (13) and an inner housing B (14) are arranged on the inner sides of the outer housing A (11) and the outer housing B (12). A bus bar main body (18) is installed on the inner sides of the inner housing A (13) and the inner housing B (14) through a positioning frame (22). Connecting columns (134) are arranged on both sides of the inner housing A (13) and the inner housing B (14). A connecting seat (135) is arranged at the inner bottom of the outer housing B (12). The lower ends of the connecting columns (134) pass through the outer housing A (11), the inner housing A (13) and the inner housing B (14) through connecting through holes (136) and are screwed to the connecting seat (135); A heat dissipation mechanism (2), including a heat insulation plate (23) installed between the inner housing A (13) and the inner housing B (14). A circulation pump (24) is arranged on the outer sides of the outer housing A (11) and the outer housing B (12). The circulation pump (24) is communicated with the inner side of the heat insulation plate (23). A heat dissipation frame (25) is arranged between the circulation pumps (24). A heat conduction tube (21) is arranged on the outer side of the heat insulation plate (23). The heat conduction tube (21) is located between the bus bar main bodies (18); A hoisting mechanism (3), including a hoisting pallet (32), hoisting plates (33) fixed at both ends of the hoisting pallet (32) and a hoisting pressing plate (34) installed between the hoisting plates (33). The outer housing A (11) and the outer housing B (12) are installed on the upper side of the hoisting pallet (32). The hoisting pressing plate (34) presses on the outer housing A (11). Hoisting grooves (31) are formed on the surfaces of the outer housing A (11) and the outer housing B (12). The hoisting pallet (32) and the hoisting pressing plate (34) are clamped in the hoisting grooves (31); Communication ports (28) are arranged at both ends of the heat insulation plate (23). One end of the circulation pump (24) is communicated with the inner side of the heat conduction tube (21) through the communication port (28). A heat dissipation tube (251) is arranged on the inner side of the heat dissipation frame (25). The other end of the circulation pump (24) is communicated with the end of the heat dissipation tube (251). Heat conduction sheets (26) are arranged inside the heat conduction tube (21). A diversion plate (27) is arranged at one end of the heat conduction tube (21); Heat insulation sheets (252) are arranged inside the heat dissipation frame (25). The heat dissipation tube (251) is located on one side of the heat insulation sheets (252). A heat conduction film (253) is attached to one side of the heat dissipation tube (251). A heat conduction plate (254) is arranged on the inner side of the heat dissipation frame (25). Both sides of the heat conduction film (253) are respectively attached to the heat dissipation tube (251) and the heat conduction plate (254). A heat dissipation fin (255) is fixedly installed on one side of the heat conduction plate (254). A heat dissipation fan (256) is arranged on one side of the heat dissipation frame (25).

2. The busbar trunking according to claim 1, characterized in that, The inner housing A (13) includes a connecting frame (131), a top plate (132) and side plates (133). The top plate (132) and the side plates (133) are respectively installed on both sides of the connecting frame (131). A square is formed among the connecting frame (131), the top plate (132) and the side plates (133). The positioning frame (22) and the bus bar body (18) are installed inside the connecting frame (131), the top plate (132) and the side plates (133), and the structure of the inner housing B (14) is the same as that of the inner housing A (13).

3. The busbar trunking according to claim 2, characterized in that, Fireproof and flame-retardant plates (15) are provided on the inner sides of the top plate (132) and the side plates (133). The connecting frame (131), the top plate (132), the side plates (133) and the fireproof and flame-retardant plates (15) are all fitted and installed on the inner walls of the outer housing A (11) and the outer housing B (12).

4. The busbar trunking according to claim 1, characterized in that, A socket (111) is installed on the inner side of one end of the outer housing A (11). A partition plate (112) is provided inside the outer housing A (11). The partition plate (112) is located among the bus bar bodies (18). A connecting plate (113) is provided on the surface of the partition plate (112). A pressing groove (114) is formed inside the socket (111). A pressing plate (116) is slidably installed inside the pressing groove (114). A pressing screw (115) is screwed on the outer side of the outer housing A (11), and one end of the pressing screw (115) presses on the pressing plate (116).

5. The busbar trunking according to claim 1, characterized in that, A splicing projection (16) is provided on one side of the outer housing A (11), and a splicing groove (17) is provided on one side of the outer housing B (12). The outer housing A (11) and the outer housing B (12) are engaged through the splicing projection (16) and the splicing groove (17).

6. The busbar trunking according to claim 1, characterized in that, The cross-sectional shape of the heat sink (255) is set to be V-shaped, and the tip direction of the heat sink (255) corresponds to the position of the cooling fan (256). Heat dissipation protrusions (259) are provided on the surface of the heat sink (255).

7. The busbar trunking according to claim 1, characterized in that, An installation groove (257) is provided on one side of the heat dissipation frame (25). Installation strips (258) are provided on the outer sides of the outer housing A (11) and the outer housing B (12). The installation groove (257) is engaged with the installation strip (258).

8. The busbar trunking according to claim 1, characterized in that, An adjusting screw rod (35) is rotatably installed inside the lifting plate (33). The lower end of the adjusting screw rod (35) is rotatably installed inside the lifting support plate (32) and fixedly installed with a driving worm gear (39). Adjusting knobs (37) are provided at both ends of the lifting support plate (32). Adjusting nuts (36) are fixedly installed at both ends of the lifting pressing plate (34). The adjusting nuts (36) are screwed on the adjusting screw rod (35) through threads; driving worm shafts (38) are rotatably installed inside both ends of the lifting support plate (32). One end of the driving worm shaft (38) passes through the lifting support plate (32) and is fixedly installed with an adjusting knob (37).

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