Air insulation bus duct

Abstract

The invention relates to the field of bus ducts, in particular to an air insulation bus duct. The scheme comprises a shell and a current-conducting plate, the current-conducting plate is arranged in the shell, first fireproof partition plates are arranged on the two sides of the current-conducting plate, the other sides of the first fireproof partition plates are coated with first fireproof coatings, and the upper side and the lower side of the inner wall of the shell are each provided with two fixing assemblies; and the conductive plate and the first fireproof partition plate are fixed to the inner side of the shell through fixing assemblies, a monitoring alarm mechanism is arranged on the inner bottom wall of the shell, and second fireproof partition plates are fixedly installed on the four walls of the inner side of the shell. Compared with the prior art, the device has the advantages that the fireproof performance of the device can be improved, fire spreading can be effectively prevented when a fire disaster occurs, and meanwhile, states such as the internal temperature of the shell and the vibration condition of the bus duct can be monitored in real time; therefore, conditions such as overheating, potential mechanical faults and whether fire occurs or not can be found and early warned in time.

Description

Technical Field

[0001] The invention relates to the field of bus ducts, and in particular to an air-insulated bus duct. Background Art

[0002] Air-type bus duct is a type of bus duct. The shell of air-type bus duct is made of high-quality high-strength cold-rolled steel and is cold-rolled into a corrugated structure at one time. It is not only beautiful in appearance, but also greatly enhances the mechanical strength of the bus duct and the dynamic and thermal stability of the system, which can completely solve the problem of large-span installation on the construction site.

[0003] For example, a Chinese patent with publication number "CN220234137U" discloses an air-insulated bus duct, including a shell, an insulating member, a plurality of busbar bodies, a shell, a cover, a bottom plate, two first side plates, a first reinforcement, a cover, two second side plates and a second reinforcement. The air-insulated bus duct has high strength and low cost, so that the bottom plate, the cover and the two first side plates form an internal space of the shell, which is used to install the insulating member and each busbar body, and under the action of the first reinforcement and the second reinforcement, the strength of the shell is effectively improved, thereby protecting the shell from deformation.

[0004] However, in the implementation of relevant technologies, it was found that the above-mentioned scheme has the following problems: poor fire resistance, it is easy to burn due to faults during the current transmission process, leading to fire and power outages in the building, and there are great safety hazards. Secondly, when the existing technology is in use, it is impossible to monitor the operating status of the bus duct in real time, and it is impossible to promptly detect changes in key parameters such as temperature and vibration, which may lead to problems such as overheating of the bus duct and potential mechanical failures, thereby causing safety accidents such as short circuits and fires. Summary of the invention

[0005] In view of the above, the purpose of the present invention is to provide an air-insulated bus duct to address the problems of poor fire resistance, inability to monitor the operating status of the bus duct in real time, and inability to promptly detect changes in key parameters such as temperature and vibration.

[0006] An air-insulated bus duct in the present scheme comprises a shell and a conductive plate, wherein the conductive plate is arranged inside the shell, and first fireproof baffles are arranged on both sides of the conductive plate, and the other side of the first fireproof baffle is coated with a first fireproof coating, two groups of fixing components are arranged on the upper and lower sides of the inner wall of the shell, and the conductive plate and the first fireproof baffle are fixed to the inner side of the shell through the fixing components, a monitoring alarm mechanism is arranged on the inner bottom wall of the shell, second fireproof baffles are fixedly installed on the four walls inside the shell, and the other side of the second fireproof baffle and the outer side of the shell are coated with a second fireproof coating, and two driving mechanisms are arranged on the upper and lower sides of the shell, and a resistance component is arranged on the driving mechanism, and the other end of the resistance component is in contact with the conductive plate.

[0007] Furthermore, two limit frames are fixedly installed on the upper and lower sides of the inner wall of the shell, and four groups of the second fire retardant coatings are respectively fixedly installed on the inner sides of the four limit frames.

[0008] Furthermore, the fixing component includes a U-shaped block fixedly mounted on the limiting frame, and the conductive plate and the first fireproof partition arranged on both sides thereof are inserted into the inner side of the U-shaped block, springs are arranged in the cavities on both sides of the inner wall of the U-shaped block, and one end of the spring is fixedly connected to the U-shaped block, a clamping block is fixedly mounted on the other end of the spring, and the conductive plate and the first fireproof partition are fixed to the inner side of the U-shaped block through the clamping block.

[0009] Furthermore, the driving mechanism includes a U-shaped frame fixedly mounted on the housing, a screw rod is provided through the U-shaped frame, and the screw rod is rotationally connected to the U-shaped frame, and the interference assembly is threadedly connected to the screw rod.

[0010] Furthermore, the interference assembly includes a strip plate threadedly connected to the screw rod, a plurality of fixed columns are arranged and fixedly installed on one side of the strip plate, the other end of the fixed column extends to the inner side of the fixed assembly and is fixedly connected with an inverted T-plate, and the side of the inverted T-plate away from the fixed column is in contact with the end face of the conductive plate.

[0011] Furthermore, a rubber pad is fixedly mounted on one side of the inverted T-plate, and the rubber end is located between the inverted T-plate and the conductive plate.

[0012] Furthermore, rectangular grooves are provided on both the left and right sides of the shell, a double-sided skived-tooth heat sink is inserted into the inner side of the rectangular groove, and the double-sided skived-tooth heat sink is fixedly mounted on the shell.

[0013] Furthermore, insulating partitions are provided on both sides of the shell, plug-in boards are fixedly installed on the upper and lower sides of the insulating partitions, plug-in slots are provided on the upper and lower sides of the shell, and the plug-in boards are plugged into the plug-in slots.

[0014] Furthermore, the monitoring alarm mechanism includes an infrared temperature sensor, a smoke sensor, an acceleration sensor, a controller and a signal transmitter fixedly mounted on the inner bottom wall of the shell, and the infrared temperature sensor, the smoke sensor, the acceleration sensor and the signal transmitter are all electrically connected to the controller.

[0015] Furthermore, the first fireproof partition and the second fireproof partition are both calcium silicate boards, and the first fireproof coating and the second fireproof coating are both composed of organic resin and flame retardant.

[0016] Beneficial effects:

[0017] 1. The first fireproof partition, the first fireproof coating, the second fireproof partition and the second fireproof coating can increase the fireproof performance of the device. When a fire occurs, the fire can be effectively prevented from spreading, the spread of the fire can be delayed, and the overall safety can be improved.

[0018] 2. By manually rotating the driving mechanism on the shell, the abutment assembly can clamp and fix the end faces of the conductive plate and the first fireproof partition, thereby improving the fixing effect. The internal temperature of the shell and the vibration of the bus duct can be monitored in real time through the monitoring alarm mechanism, so as to timely detect and warn of overheating, potential mechanical failures and whether a fire has occurred.

[0019] 3. Through the limit frame, each group of fixed components can be quickly aligned when fixed to the inside of the shell, thereby avoiding unevenness between each group of fixed components. The limit frame can also improve the stability of the shell, increase the bearing capacity of the shell, and ensure that the shell will not break during use;

[0020] 4. The elastic force of the spring itself pushes the clamping block in the cavity of the U-shaped block to move and clamp the conductive plate and the first fireproof partition, so that the conductive plate can be easily disassembled and assembled, and daily maintenance becomes simpler. The number and position of the conductive plates can be adjusted according to actual needs, thereby optimizing power distribution and load management;

[0021] 5. Manually rotate the disc at one end of the screw rod so that the screw rod rotatably installed on the U-shaped frame can rotate and drive the resistance component to move, so that the resistance component can contact and clamp the end faces of the conductive plate and the first fireproof partition, thereby improving the fixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of this application;

[0023] Figure 2 This is a schematic diagram of the explosion structure of this application;

[0024] Figure 3 This is a schematic diagram of the structure of the monitoring and alarm mechanism for this application;

[0025] Figure 4 This is a schematic diagram of the structure of the screw rod in this application;

[0026] Figure 5 For this application Figure 4 A is an enlarged structural diagram;

[0027] Figure 6This is a schematic diagram of the structure of the U-shaped frame of this application;

[0028] Figure 7 This is a schematic diagram of the structure of the limit frame of this application;

[0029] Figure 8 This is a schematic cross-sectional structural diagram of the conductive plate of the present application;

[0030] Fig. 9 This is a schematic cross-sectional structural diagram of the shell of this application;

[0031] Fig.10 This is the electrical connection principle diagram of this application.

[0032] Reference numerals: 1. housing; 2. conductive plate; 3. first fireproof partition; 4. first fireproof coating;

[0033] 5. Fixing assembly; 51. U-shaped block; 52. Spring; 53. Clamping block;

[0034] 6. Monitoring and alarm mechanism; 7. Second fireproof partition; 8. Second fireproof coating; 9. Limiting frame; 10. Rectangular groove; 11. Double-sided skived radiator; 12. Insulating partition; 13. Plug-in board; 14. Plug-in groove; 15. U-shaped frame; 16. Screw rod;

[0035] 17. Interference assembly; 1701. Strip plate; 1702. Fixed column; 1703. Inverted T-plate. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Reference Figures 1 to 10An air-insulated bus duct shown in the figure comprises a shell 1 and a conductive plate 2, the conductive plate 2 is arranged inside the shell 1, first fireproof baffles 3 are arranged on both sides of the conductive plate 2, the other side of the first fireproof baffle 3 is coated with a first fireproof coating 4, two sets of fixing components 5 are arranged on the upper and lower sides of the inner wall of the shell 1, and the conductive plate 2 and the first fireproof baffle 3 are fixed to the inner side of the shell 1 through the fixing components 5, a monitoring alarm mechanism 6 is arranged on the inner bottom wall of the shell 1, and second fireproof baffles 7 are fixedly installed on the four walls inside the shell 1, and the other side of the second fireproof baffle 7 The outer side of the shell 1 is coated with a second fireproof coating 8, the first fireproof baffle 3 and the second fireproof baffle 7 are both calcium silicate boards, the first fireproof coating 4 and the second fireproof coating 8 are both composed of organic resin and flame retardant, two driving mechanisms are arranged on the upper and lower sides of the shell 1, a resistance component 17 is arranged on the driving mechanism, and the other end of the resistance component 17 is in contact with the conductive plate 2, rectangular grooves 10 are opened on the left and right sides of the shell 1, a double-sided skived-tooth radiator 11 is inserted into the inner side of the rectangular groove 10, and the double-sided skived-tooth radiator 11 is fixedly installed on the shell 1.

[0038] The present invention provides an air-insulated bus duct: through the fixing component 5, the number of the conductive plate 2 and the first fireproof partition 3 can be adjusted according to actual needs, so as to optimize power distribution and load management; then, through the first fireproof partition 3, the first fireproof coating 4, the second fireproof partition 7 and the second fireproof coating 8, the fireproof performance of the device can be increased. In the event of a fire, the spread of the fire can be effectively prevented, the spread of the fire can be delayed, and the overall safety can be improved; then, the driving mechanism on the shell 1 is manually rotated, and then the driving mechanism drives the resistance component 17 threadedly connected thereon, so that the resistance component 17 can clamp and fix the end faces of the conductive plate 2 and the first fireproof partition 3. The fixing effect can be improved, so that the conductive plate 2 and the first fireproof partition 3 can be stably fixed in the fixing component 5 and the shell 1, and then the monitoring alarm mechanism 6 inside the shell 1 can monitor the internal temperature of the shell 1 and the vibration of the bus duct in real time, so as to timely detect and warn of overheating, potential mechanical failures and whether there is a fire, etc. Finally, through the rectangular grooves 10 opened on both sides of the shell 1 and with the cooperation of the double-sided skived-tooth heat sink 11, the heat inside the shell 1 can be transferred to the air outside the shell 1 more quickly, thereby accelerating the conduction and dissipation of heat, and further improving the heat dissipation efficiency, heat dissipation area and heat dissipation performance of the device.

[0039] Furthermore, two limit frames 9 are fixedly installed on both upper and lower sides of the inner wall of the shell 1, and four groups of second fire retardant coatings 8 are fixedly installed on the inner sides of the four limit frames 9 respectively.

[0040] Specifically, through the limit frame 9, each group of fixed components 5 can be quickly aligned when fixed to the inside of the shell 1, thereby avoiding unevenness between each group of fixed components 5, thereby avoiding affecting the use and connection of the conductive plate 2. At the same time, through the limit frame 9, the stability of the shell 1 can be improved, the bearing capacity of the shell 1 can be increased, and it can be ensured that the shell 1 will not break during use. In addition, due to the design of the limit frame 9, each group of fixed components 5 is neatly arranged in the shell 1, so operation and maintenance become easier, and it is also convenient to clean and maintain.

[0041] In addition, it should be noted that the limiting frame 9 can improve the aesthetics of the device, and the neatly arranged fixing components 5 make the inside of the shell 1 look neater and more beautiful.

[0042] Furthermore, the fixing component 5 includes a U-shaped block 51 fixedly mounted on the limit frame 9, and the conductive plate 2 and the first fireproof partition 3 arranged on both sides thereof are inserted into the inner side of the U-shaped block 51, and springs 52 are arranged in the cavities on both sides of the inner wall of the U-shaped block 51, and one end of the spring 52 is fixedly connected to the U-shaped block 51, and a clamping block 53 is fixedly mounted on the other end of the spring 52, and the conductive plate 2 and the first fireproof partition 3 are fixed to the inner side of the U-shaped block 51 through the clamping block 53.

[0043] Specifically, the elastic force of the spring 52 itself pushes the clamping block 53 in the cavity of the U-shaped block 51 to move, and clamps the conductive plate 2 and the first fireproof partition 3, so that the conductive plate 2 can be easily disassembled and assembled, and daily maintenance becomes simpler, and the number and position of the conductive plates 2 can be adjusted according to actual needs, thereby optimizing power distribution and load management. At the same time, it can also effectively reduce the installation time and improve the installation efficiency. Moreover, since the spring 52 can absorb vibration and impact, it can effectively reduce the damage to the conductive plate 2 caused by vibration and impact and extend the service life.

[0044] Furthermore, the driving mechanism includes a U-shaped frame 15 fixedly mounted on the housing 1 , a screw rod 16 is provided through the U-shaped frame 15 , and the screw rod 16 is rotationally connected to the U-shaped frame 15 , and the abutment assembly 17 is threadedly connected to the screw rod 16 .

[0045] Specifically, by manually rotating the disk at one end of the screw rod 16, the screw rod 16 rotatably installed on the U-shaped frame 15 can be rotated, and can drive the interference component 17 to move, so that the interference component 17 can contact and clamp the end faces of the conductive plate 2 and the first fireproof partition 3, thereby improving the fixing effect, so that the conductive plate 2 and the first fireproof partition 3 can be stably fixed in the fixing component 5 and the shell 1.

[0046] Furthermore, the abutment assembly 17 includes a strip plate 1701 threadedly connected to the screw rod 16, a plurality of fixed columns 1702 are arranged and fixedly installed on one side of the strip plate 1701, the other end of the fixed column 1702 extends to the inner side of the fixed assembly 5 and is fixedly connected with an inverted T-plate 1703, and the side of the inverted T-plate 1703 away from the fixed column 1702 is in contact with the end face of the conductive plate 2.

[0047] Specifically, when the screw rod 16 rotates, it can drive the strip plate 1701 threaded thereon, so that the strip plate 1701 can drive the inverted T-plate 1703 to move under the action of the fixed column 1702 and the U-shaped block 51, and make it contact and clamp and fix with the end faces of the conductive plate 2 and the first fireproof partition 3, thereby improving the fixing effect.

[0048] Furthermore, a rubber pad is fixedly mounted on one side of the inverted T-plate 1703 , and the rubber end is located between the inverted T-plate 1703 and the conductive plate 2 .

[0049] Specifically, the rubber pad on one side of the inverted T-plate 1703 can prevent the end face of the conductive plate 2 from being worn due to long-term hard contact with the inverted T-plate 1703. At the same time, since the rubber pad has excellent elasticity and shock absorption, the rubber pad on one side of the inverted T-plate 1703 can absorb impact force and vibration, thereby improving the protection effect of the conductive plate 2.

[0050] Furthermore, insulating partitions 12 are provided on both sides of the shell 1, and plug-in boards 13 are fixedly installed on the upper and lower sides of the insulating partitions 12. Plug-in slots 14 are opened on the upper and lower sides of the shell 1, and the plug-in boards 13 are plugged into the plug-in slots 14.

[0051] Specifically, when manually assembling the shell 1, the plug-in board 13 on the insulating partition 12 is plugged into the plug-in slot 14 on the shell 1, so that the insulating partition 12 can be fixed on the shell 1, and then the insulating partition 12, with the cooperation of the rubber pad on one side of the inverted T-plate 1703, allows the conductive plate 2 and the shell 1 to maintain good insulation performance in a humid environment, thereby significantly improving its safety performance and insulation effect, and also making the device less susceptible to the influence of the environment and foreign objects, with low maintenance requirements and high safety and stability.

[0052] Furthermore, the monitoring alarm mechanism 6 includes an infrared temperature sensor, a smoke sensor, an acceleration sensor, a controller and a signal transmitter fixedly mounted on the inner bottom wall of the shell 1, and the infrared temperature sensor, the smoke sensor, the acceleration sensor and the signal transmitter are all electrically connected to the controller.

[0053] Specifically, the temperature inside the shell 1 can be monitored in real time through the infrared temperature sensor, and the vibration of the shell 1 can be monitored in real time through the acceleration sensor. Then, whether there is a fire inside the shell 1 can be monitored in real time through the smoke sensor. When the infrared temperature sensor, the smoke sensor and the acceleration sensor detect that the temperature inside the shell 1 is overheated, there is smoke and the vibration is higher than the preset value, the controller controls the signal transmitter to send the data to the background to prompt the monitoring personnel to take effective measures in time, so as to prevent fire or other faults caused by overheating and ensure the stable operation of the power system.

[0054] The working principle and use process of the present invention:

[0055] By fixing the component 5, the number of the conductive plate 2 and the first fireproof partition 3 can be adjusted according to actual needs, so as to optimize power distribution and load management. Then, the first fireproof partition 3, the first fireproof coating 4, the second fireproof partition 7 and the second fireproof coating 8 can increase the fireproof performance of the device. In the event of a fire, the fire can be effectively prevented from spreading, the spread of the fire can be delayed, and the overall safety can be improved. Then, by manually rotating the driving mechanism on the shell 1, the driving mechanism drives the threaded resistance component 17 thereon, so that the resistance component 17 can clamp and fix the end faces of the conductive plate 2 and the first fireproof partition 3, thereby improving The fixing effect enables the conductive plate 2 and the first fireproof partition 3 to be stably fixed in the fixing component 5 and the shell 1, and then the monitoring alarm mechanism 6 inside the shell 1 can monitor the internal temperature of the shell 1 and the vibration of the bus duct in real time, so as to timely discover and warn of overheating, potential mechanical failures and whether there is a fire, etc. Finally, through the rectangular grooves 10 opened on both sides of the shell 1 and with the cooperation of the double-sided skived-tooth heat sink 11, the heat inside the shell 1 can be transferred to the air outside the shell 1 more quickly, so as to accelerate the conduction and dissipation of heat, and further improve the heat dissipation efficiency, heat dissipation area and heat dissipation performance of the device;

[0056] When in use, first assemble the three protective plates of the shell 1 into a U-shaped shell, and then manually insert the conductive plate 2 and the first fireproof partition 3 into the U-shaped block according to the situation, and at the same time, the elastic force of the spring 52 itself pushes the clamping block 53 in the cavity of the U-shaped block 51 to move and clamp the conductive plate 2 and the first fireproof partition 3, so that the conductive plate 2 can be easily disassembled and assembled, and daily maintenance becomes simpler. After that, the insulating partition 12 is manually connected to the shell 1 through the plug-in board 13 under the insulating partition 12, so that the insulation effect between the conductive plate 2 and the shell 1 is better under the action of the insulating partition 12, and then the remaining protective plate is manually assembled and connected to the U-shaped shell 1 to form a complete shell 1. After the assembly is completed, the first fireproof partition 3, the first fireproof coating 4, the second fireproof partition 7 and the second fireproof coating 8 can increase the fireproof performance of the device. In the event of a fire, it can effectively prevent the spread of the fire, delay the spread of the fire, and improve the overall safety. Then the screw rod 16 is manually rotated so that the screw rod 16 can drive the strip plate 1701 threaded thereon to move under the action of the fixed column 1702 and the U-shaped block 51, and then the moving strip plate 1701 drives the inverted T-plate 1703 through the fixed column 1702, and makes it contact and clamp the end faces of the conductive plate 2 and the first fireproof partition 3, thereby improving the fixing effect, and then the interior of the shell 1 is monitored by the infrared temperature sensor, the smoke sensor and the acceleration sensor. When the infrared temperature sensor, the smoke sensor and the acceleration sensor detect that the temperature inside the shell 1 is overheated, there is smoke and the vibration is higher than the preset value, the controller controls the signal transmitter to send the data to the background to prompt the monitoring personnel to take effective measures in time, thereby preventing fire or other faults caused by overheating and ensuring the stable operation of the power system. Finally, through the rectangular grooves 10 opened on both sides of the shell 1 and with the cooperation of the double-sided skived tooth radiator 11, the heat inside the shell 1 can be quickly dissipated.

[0057] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air-insulated bus duct, comprising a housing (1) and a conductive plate (2), characterized in that: The conductive plate (2) is arranged inside the housing (1), first fireproof baffles (3) are arranged on both sides of the conductive plate (2), and the other side of the first fireproof baffle (3) is coated with a first fireproof coating (4); Two sets of fixing components (5) are provided on both upper and lower sides of the inner wall of the shell (1), and the conductive plate (2) and the first fireproof partition (3) are fixed to the inner side of the shell (1) through the fixing components (5); The inner bottom wall of the housing (1) is provided with a monitoring alarm mechanism (6); A second fireproof partition (7) is fixedly mounted on the four inner walls of the shell (1), and the other side of the second fireproof partition (7) and the outer side of the shell (1) are coated with a second fireproof coating (8); Two driving mechanisms are arranged on both the upper and lower sides of the housing (1); a resistance component (17) is arranged on the driving mechanism, and the other end of the resistance component (17) is in contact with the conductive plate (2).

2. The air-insulated bus duct according to claim 1, characterized in that: Two limit frames (9) are fixedly mounted on both upper and lower sides of the inner wall of the shell (1), and four groups of the second fire retardant coatings (8) are respectively fixedly mounted on the inner sides of the four limit frames (9).

3. The air-insulated bus duct according to claim 2, characterized in that: The fixing assembly (5) comprises a U-shaped block (51) fixedly mounted on the limiting frame (9), and the conductive plate (2) and the first fireproof partitions (3) arranged on both sides thereof are both plugged into the inner side of the U-shaped block (51); Springs (52) are arranged in the cavities on both sides of the inner wall of the U-shaped block (51), and one end of the spring (52) is fixedly connected to the U-shaped block (51), and a clamping block (53) is fixedly installed on the other end of the spring (52), and the conductive plate (2) and the first fireproof partition (3) are fixed to the inner side of the U-shaped block (51) through the clamping block (53).

4. The air-insulated bus duct according to claim 1, characterized in that: The driving mechanism comprises a U-shaped frame (15) fixedly mounted on the housing (1), a screw rod (16) passing through the U-shaped frame (15), and the screw rod (16) is rotatably connected to the U-shaped frame (15), and the abutment assembly (17) is threadedly connected to the screw rod (16).

5. The air-insulated bus duct according to claim 4, characterized in that: The abutment assembly (17) comprises a strip plate (1701) threadedly connected to the screw rod (16); a plurality of fixing columns (1702) are arranged and fixedly installed on one side of the strip plate (1701); the other end of the fixing column (1702) extends to the inner side of the fixing assembly (5) and is fixedly connected to an inverted T-plate (1703); and the side of the inverted T-plate (1703) away from the fixing column (1702) contacts the end surface of the conductive plate (2).

6. The air-insulated bus duct according to claim 5, characterized in that: A rubber pad is fixedly mounted on one side of the inverted T-plate (1703), and the rubber end is located between the inverted T-plate (1703) and the conductive plate (2).

7. The air-insulated bus duct according to claim 1, characterized in that: Rectangular grooves (10) are provided on both left and right sides of the shell (1), a double-sided skived-tooth heat sink (11) is inserted into the inner side of the rectangular groove (10), and the double-sided skived-tooth heat sink (11) is fixedly mounted on the shell (1).

8. The air-insulated bus duct according to claim 1, characterized in that: Insulating partitions (12) are provided on both sides of the shell (1), plug-in boards (13) are fixedly mounted on the upper and lower sides of the insulating partitions (12), plug-in slots (14) are provided on the upper and lower sides of the shell (1), and the plug-in boards (13) are plugged into the plug-in slots (14).

9. The air-insulated bus duct according to claim 1, characterized in that: The monitoring alarm mechanism (6) comprises an infrared temperature sensor, a smoke sensor, an acceleration sensor, a controller and a signal transmitter which are fixedly mounted on the inner bottom wall of the shell (1), and the infrared temperature sensor, the smoke sensor, the acceleration sensor and the signal transmitter are all electrically connected to the controller.

10. The air-insulated bus duct according to claim 1, characterized in that: The first fireproof partition (3) and the second fireproof partition (7) are both calcium silicate boards, and the first fireproof coating (4) and the second fireproof coating (8) are both composed of organic resin and flame retardant.

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