Bus duct with reversing function

Abstract

The application discloses a bus duct with a reversing function, and relates to the technical field of bus ducts.The bus duct comprises a reversing slot pipe one, a reversing slot pipe two and a bus duct, and a plurality of conductive sheets are arranged in the interiors of the reversing slot pipe one, the reversing slot pipe two and the bus duct. The reversing slot pipe two can rotate, and special reversing fittings such as elbows and tees need not be customized, thereby greatly reducing the types of fittings, lowering the inventory and production cost, and enabling the installation site to be adjusted at multiple preset angles, such as horizontally, vertically and obliquely, to realize the butt joint of the conductive interfaces of devices at different angles, and to enable the butt joint angle to be adjusted in real time according to the space and the position of the devices on the site during construction, without the need of customizing and processing or repeatedly adjusting the support, and the application is especially suitable for scenes such as narrow pipe wells, special-shaped buildings and inclined power distribution devices, and can significantly improve the construction efficiency and reduce the construction difficulty, effectively reduce the contact resistance and temperature rise risk, and improve the system operation safety.

Description

Technical Field

[0001] This invention relates to the field of busbar technology, and more specifically, to a busbar with a commutation function. Background Technology

[0002] Busbar trunking is a type of enclosed power transmission equipment that uses copper or aluminum conductors as the transmission medium, combined with a metal shell and insulating protective structure. Compared to traditional cables, it offers advantages such as large transmission capacity, superior heat dissipation, high protection level, and convenient installation and maintenance. It is widely used in high-current power distribution scenarios such as data centers, industrial plants, high-rise buildings, and rail transportation, and is an indispensable key component in modern power distribution systems. With the diversification of building power distribution layouts, on-site installation places higher demands on the connection adaptability and construction efficiency of busbar trunking.

[0003] Existing busbar connectors are mostly fixed-angle structures because the pipe body and end interface are fixedly molded, preventing relative rotation. This completely locks the arrangement direction of the internal conductive plates and the orientation of the interface. In practical engineering applications, the conductive interfaces of terminal electrical equipment such as data center cabinets, industrial production equipment, and power distribution equipment are not all arranged horizontally or at right angles. Some equipment interfaces are angled (e.g., 30°, 45°) or spatially tilted. Furthermore, in narrow manholes, irregularly shaped building spaces, or renovations of old buildings, the relative position of the equipment interface and the busbar often presents an irregular spatial angle. Since the traditional busbar pipe body cannot rotate, the orientation of its internal conductive plates cannot be adjusted with the equipment interface angle, making direct connection impossible. Custom-designed angled adapter elbows or tees must be added, increasing material costs and installation procedures. Excessive adapters can also lead to increased contact resistance and a higher risk of temperature rise. When connecting busbar trunking, existing positioning methods only limit the outer casing, and the alignment of internal conductive plates relies on repeated manual adjustments. This requires highly skilled construction personnel, has low installation efficiency, and is prone to alignment deviations, resulting in insufficient overlap of conductive plates and potential scratches on the anti-oxidation coating. Forcible tightening can cause deformation of the conductive plates and even lead to phase misalignment and poor contact. Connection sealing often uses pre-installed sealing sleeves or on-site caulking. Sealing sleeves need to be inserted from the end, which is unsuitable for retrofitting and maintaining existing busbar trunking. On-site caulking is greatly affected by the environment, easily leading to uneven sealing and cracking of the adhesive layer. It also requires waiting for curing, slowing down the process. Fixed-size seals cannot accommodate on-site gap deviations, resulting in poor adaptability. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a busbar trunking with commutation function.

[0005] The technical solution is as follows: A busbar trunking with a commutation function includes a commutation tube 1, a commutation tube 2, and a busbar trunking. Multiple conductive sheets are provided inside the commutation tube 1, the commutation tube 2, and the busbar trunking. An adjustment component for adjusting the rotation angle of the commutation tube 1 and the commutation tube 2 is provided between the commutation tube 1 and the commutation tube 2. The adjustment assembly includes a rotating groove formed on the surface of the first reversing tube near the second reversing tube. A rotating ring is fixedly connected to the side of the second reversing tube near the first reversing tube. The rotating ring slides inside the rotating groove. Both the first and second reversing tubes are provided with a locking assembly for locking and sealing the first and second reversing tubes. Both the second reversing tube and the busbar are provided with an auxiliary assembly for assisting the connection between the second reversing tube and the busbar. The auxiliary components include two sets of side guard plates fixedly connected to the reversing slot tube 2 and the busbar trunking on their respective sides. Each set of side guard plates has two plates. The two side guard plates on the reversing slot tube 2 are located outside the two side guard plates on the busbar trunking. The two side guard plates on the reversing slot tube 2 are provided with movable slots 3 on their respective sides. Each movable slot 3 is fixedly connected to a spring 4 inside. Each spring 4 is fixedly connected to an auxiliary plate at the end away from the movable slot 3. The two side guard plates on the busbar trunking are provided with auxiliary slots on the side near the auxiliary plate. A sealing component for sealing the connection between the reversing slot tube 2 and the busbar trunking is provided together.

[0006] Furthermore, the conductive plates in the first commutator tube and the conductive plates in the second commutator tube are both set to semi-circular rings at their closest ends. The first commutator tube, the second commutator tube, and the busbar are all assembled by non-perforated riveting of magnesium-aluminum alloy profiles with excellent heat dissipation and good conductivity, and are covered with a polyester film with good insulation properties inside.

[0007] Furthermore, the adjustment assembly also includes multiple limiting grooves arranged in a ring array on the surface of the reversing slot tube one near the reversing slot tube two. The surface of the reversing slot tube two near the reversing slot tube one is provided with multiple movable slots one arranged in a ring array. A spring one is fixedly connected inside each movable slot one. A limiting block is fixedly connected to the end of each spring one away from the movable slot one. Multiple limiting blocks slide inside the corresponding movable slot one. The end of each limiting block away from the spring one protrudes out of the movable slot one. The end of each limiting block protruding out of the movable slot one abuts against the wall of the limiting slot.

[0008] Furthermore, the cross-section of the rotating groove is set to an L-shape, the cross-section of the rotating ring is set to an L-shape, and there is a space between the side of the rotating ring away from the second reversing groove tube and the groove wall of the rotating groove. Each limiting groove is set to a semi-circular shape, and the end of each limiting block away from the first spring is set to a spherical shape.

[0009] Furthermore, the locking assembly includes multiple movable slots II arranged in a ring array on the reversing slot tube II. Each movable slot II is fixedly connected to a spring II. Each spring II is fixedly connected to a locking block at the end away from the movable slot II. The multiple locking blocks slide in the corresponding movable slot II. A release ring is slidably connected to the outer surface of the reversing slot tube I. Multiple springs III arranged in a ring array are fixedly connected between the release ring and the outer surface of the reversing slot tube I. A sealing ring is fixedly connected to the side of the reversing slot tube I and the reversing slot tube II that are close to each other.

[0010] Furthermore, the locking block has an inclined surface at the end away from the second spring, allowing the locking block to slide into the interior of the second movable groove. The outer surface of the reversing groove tube is provided with a groove, and two sealing rings are correspondingly provided, both of which are made of rubber.

[0011] Furthermore, a fastening hole is provided at one end of the conductive sheet located between the reversing slot tube and the busbar slot, and through openings corresponding to the conductive sheet are provided on both sets of side guard plates, and through holes are provided on multiple auxiliary plates.

[0012] Furthermore, the sealing assembly includes a magnetic ring fixedly connected to the busbar trunking, and a bellows fixedly connected to one end of the reversing tube near the busbar trunking, with a metal ring fixedly connected to the end of the bellows near the magnetic ring.

[0013] Based on the above, the beneficial effects of a busbar trunking system with commutation function in this invention are as follows: With the rotatable reversing slot tube II, there is no need to customize special elbows, tees and other reversing accessories. It can be adjusted to multiple preset angles such as horizontal, vertical and oblique, so as to connect the conductive interface of equipment at different angles. During construction, the connection angle can be adjusted in real time according to the site space and equipment position. There is no need for custom processing or repeated adjustment of the bracket. It is especially suitable for scenarios such as narrow pipe wells, irregular buildings, and inclined power distribution equipment. It significantly improves construction efficiency, reduces construction difficulty, effectively reduces contact resistance and temperature rise risk, and improves system operation safety. The locking block and the limiting action of the first reversing slot tube lock the first reversing slot tube and the second reversing slot tube together. At the same time, the sealing ring is used to seal, achieving dual functions in one step, simplifying the construction steps, improving installation efficiency, and resisting loosening caused by vibration and thermal expansion and contraction after locking. The corrugated pipe can seal the connection between the commutator tube and the busbar trunking, adapting to the renovation and maintenance of existing busbar trunking. Once unfolded, it can adapt to different on-site connection gaps and dimensional deviations, eliminating the need for customized seals, thus reducing production costs. It also eliminates the need for on-site adhesive application, avoiding problems such as waiting for adhesive to cure, uneven sealing, and easy cracking, significantly improving construction efficiency. Furthermore, it can achieve a full-enclosed seal, blocking the intrusion of water, dust, and salt spray, improving the protection level, and facilitating disassembly and maintenance. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of the overall components of the present invention; Figure 2 This is a three-dimensional cross-sectional view of the overall components of the present invention; Figure 3 This is a three-dimensional schematic diagram of the components of the present invention, including the second reversing slot, conductive sheet, rotating ring, and limiting block. Figure 4 This is a three-dimensional schematic diagram of the components of the present invention, including the reversing groove tube, conductive sheet, rotating groove, and limiting groove. Figure 5 This is a three-dimensional cross-sectional view of the components of the present invention, including the first commutation slot tube, the second commutation slot tube, and the conductive sheet. Figure 6 For the present invention Figure 5 Enlarged schematic diagram of component A in the middle; Figure 7 This is a three-dimensional schematic diagram of the conductive sheet distribution of the present invention; Figure 8 This is a three-dimensional schematic diagram of the components of the present invention, including the first reversing slot tube, the second reversing slot tube, and the side guard plate. Figure 9 This is a three-dimensional schematic diagram of the busbar trunking, side guard plate, auxiliary trunking and other components of the present invention; Figure 10 For the present invention Figure 5 Enlarged schematic diagram of component at point B; Figure 11 For the present invention Figure 2 Enlarged schematic diagram of component C in the middle.

[0015] The reference numerals in the accompanying drawings of this invention are as follows: 1. Reversing slot tube one; 2. Reversing slot tube two; 5. Conductive sheet; 6. Busbar trunking; 31. Rotating groove; 32. Rotating ring; 33. Limiting groove; 34. Movable groove one; 35. Spring one; 36. Limiting block; 41. Movable groove two; 42. Spring two; 43. Locking block; 44. Release ring; 45. Spring three; 46. Sealing ring; 47. Groove; 71. Side guard plate; 72. Movable groove three; 73. Spring four; 74. Auxiliary plate; 75. Auxiliary groove; 81. Magnetic ring; 82. Bellows; 83. Metal ring. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0017] The embodiments provided by the present invention will be described in detail below: like Figures 1 to 7 As shown, a busbar trunking with commutation function includes a commutation tube 1, a commutation tube 2, and a busbar trunking 6. Multiple conductive sheets 5 are provided inside the commutation tube 1, the commutation tube 2, and the busbar trunking 6. An adjustment component for adjusting the rotation angle of the commutation tube 1 and the commutation tube 2 is provided between the commutation tube 1 and the commutation tube 2. The adjustment assembly includes a rotating groove 31 formed on the surface of the first reversing tube 1 near the second reversing tube 2. A rotating ring 32 is fixedly connected to the side of the second reversing tube 2 near the first reversing tube 1. The rotating ring 32 slides inside the rotating groove 31. Multiple limiting grooves 33 arranged in a ring array are formed on the surface of the first reversing tube 1 near the second reversing tube 2. Multiple movable grooves 34 arranged in a ring array are formed on the surface of the second reversing tube 2 near the first reversing tube 1. A spring 35 is fixedly connected inside each movable groove 34. A limiting block 36 is fixedly connected to the end of each spring 35 away from the movable groove 34. Multiple limiting blocks 36 slide inside the corresponding movable groove 34. The end of each limiting block 36 away from the spring 35 protrudes from the movable groove 34. The end of each limiting block 36 protruding from the movable groove 34 abuts against the groove wall of the limiting groove 33.

[0018] It should be noted that, referring to Figure 1As shown, commutator tube 1 is located to the left of commutator tube 2, and busbar 6 is located to the right of commutator tube 2. The conductive plates 5 in commutator tube 1 and commutator tube 2 are both semi-circular at their closest points. This ensures that the conductive plates 5 in commutator tube 1 and commutator tube 2 remain in contact when they rotate relative to each other. Commutator tube 1, commutator tube 2, and busbar 6 are all assembled using magnesium-aluminum alloy profiles with excellent heat dissipation and conductivity, riveted together without holes, and are internally covered with a polyester film with good insulation properties. Rotating slot 31... The cross-section of the rotating ring 32 is set to L-shape. The side of the rotating ring 32 away from the reversing groove tube 2 has an movable gap with the wall of the rotating groove 31, so that the rotating ring 32 can slide in the arc direction inside the rotating groove 31 and also slide in the horizontal direction. That is, when the reversing groove tube 2 is away from the reversing groove tube 1, it can drive the rotating ring 32 to move synchronously in the rotating groove 31. Each limiting groove 33 is set to a semi-circular shape, and the end of each limiting block 36 away from the spring 35 is set to a spherical shape, so that when the limiting block 36 touches the inside of the limiting groove 33, it can still slide out of the limiting groove 33 by sliding.

[0019] Specifically, during the installation of the busbar trunking 6, which is still in a non-energized state, for installations of busbar trunking 6 at different angles, the second commutator tube 2 can be rotated on the first commutator tube 1 before installation. At this time, the worker can place the first commutator tube 1 on the table and then directly rotate the second commutator tube 2 using a wrench or other tools. During the rotation, the second commutator tube 2 will drive the rotating ring 32 to rotate synchronously in the rotating groove 31. At the same time, the second commutator tube 2 will drive the limit block 3 through the movable groove 34. 6. During synchronous rotation, the limiting block 36 continuously slides from the limiting groove 33 to the outer surface of the reversing groove tube 1. Pressed by the outer surface of the reversing groove tube 1, the limiting block 36 moves towards the spring 35 inside the movable groove 34. The moving limiting block 36 compresses the spring 35. When the reversing groove tube 2 continues to rotate through the movable groove 34, the limiting block 36 slides from the surface of the reversing groove tube 1 to the inside of the limiting groove 33. The contact action between the limiting block 36 and the limiting groove 33 allows the angle of rotation of the second reversing tube 2 on the first reversing tube 1 to be limited, ensuring that the second reversing tube 2 cannot rotate relative to the first reversing tube 1 without external force. Through the rotatable first reversing tube 1 and the second reversing tube 2, the conductive plates 5 inside the first reversing tube 1 and the second reversing tube 2 can rotate synchronously. During the process, the ends of the conductive plates 5 in the first reversing tube 1 and the second reversing tube 2 that are close to each other are both set... The semi-circular shape ensures that both the conductive piece 5 and the commutator tube 2 maintain conductive contact within the preset rotation range of the commutator tube 2. This allows the conductive piece 5 to connect to other conductive pieces 5 in the busbar trough 6 at different angles, eliminating the need for customized elbows, tees, and other commutator fittings. This significantly reduces the variety of fittings, lowers inventory and production costs. During on-site installation, construction personnel can flexibly adjust the docking angle according to the building space and pipeline layout, eliminating the need for on-site cutting and processing. This reduces construction difficulty, improves installation efficiency, and avoids damage to the busbar protective layer and conductive plating during processing. For example, conductive heads on data center cabinets and industrial equipment are not all arranged in a straight line or at right angles. Some equipment conductive interfaces are arranged at an angle, such as 45° angled towards the cabinet or angled towards the power supply point on the production line. Therefore, the conductive piece 5 can rotate and tilt with the commutator tube 2, adapting to narrow installation spaces, eliminating docking dead angles, ensuring the conductive reliability and sealing performance of the connection, effectively reducing contact resistance and temperature rise risks, and improving system operational safety.

[0020] When the commutation slot 2 rotates, the angle of the conductive sheet 5 inside it will change, as shown in the reference. Figure 2As shown, the original conductive sheet 5 was in a vertical state, but after rotation, the conductive sheet 5 can become tilted. When the conductive sheet 5 inside the second commutator tube 2 rotates, the end of the conductive sheet 5 near the first commutator tube 1 will rotate with the conductive sheet 5 inside the first commutator tube 1. The annular conductive sheet 5 can ensure that the conductive sheet 5 remains in contact when the second commutator tube 2 drives the conductive sheet 5 to rotate. Finally, the first commutator tube 1 and the second commutator tube 2, with the angle adjusted, are installed on the line of the busbar 6 with bolts. After the entire line of the busbar 6 is installed, it can be powered on for debugging.

[0021] like Figure 2 , Figure 3 , Figure 4 and Figure 6 As shown, both the first reversing tube 1 and the second reversing tube 2 are provided with a locking assembly for locking and sealing the first reversing tube 1 and the second reversing tube 2. The locking assembly includes multiple movable slots 41 arranged in a ring array on the second reversing tube 2. A spring 42 is fixedly connected inside each movable slot 41. A locking block 43 is fixedly connected to the end of each spring 42 away from the movable slot 41. The multiple locking blocks 43 slide inside the corresponding movable slot 41. A release ring 44 is slidably connected to the outer surface of the first reversing tube 1. Multiple springs 45 arranged in a ring array are fixedly connected between the release ring 44 and the outer surface of the first reversing tube 1. A sealing ring 46 is fixedly connected to the side of the first reversing tube 1 and the second reversing tube 2 that are close to each other.

[0022] It should be noted that the locking block 43 has an inclined surface at the end away from the second spring 42, which facilitates the release ring 44 from pushing the locking block 43, allowing the locking block 43 to slide into the interior of the second movable groove 41. The outer surface of the reversing groove tube 1 has a groove 47, which provides space for the radial movement of the locking block 43. The two sealing rings 46 on the reversing groove tube 1 and the reversing groove tube 2 are arranged opposite to each other, and both sealing rings 46 are made of rubber.

[0023] Specifically, after the rotation of the second reversing slot tube 2 is completed, it needs to be locked. This can be done by pushing the second reversing slot tube 2 towards one side of the first reversing slot tube 1, thereby causing the second reversing slot tube 2 to drive the rotating ring 32 to slide synchronously within the space of the rotating slot 31. (Refer to...) Figure 6As shown, at the same time, the second reversing tube 2 will also drive the locking block 43 to move synchronously through the second movable groove 41. At this time, the locking block 43 no longer abuts against the groove 47 of the first reversing tube 1. Under the elastic reset action of the second spring 42, the locking block 43 will move to the outside of the second movable groove 41. Then, the plane of the locking block 43 will fit against the outer surface of the first reversing tube 1. Through the fit between the locking block 43 and the first reversing tube 1, when the second reversing tube 2 approaches the first reversing tube 1, the two sealing rings 46 of the first reversing tube 1 and the second reversing tube 2 will fit tightly. Through the limiting action of the locking block 43 and the first reversing tube 1, the first reversing tube 1 and the second reversing tube 2 will be locked. At the same time, the sealing rings 46 will be used to seal, achieving dual functions in one step, simplifying the construction steps, improving installation efficiency, and resisting loosening caused by vibration and thermal expansion and contraction after locking.

[0024] It should be noted that when it is necessary to release the locking block 43 from the outer surface of the reversing slot tube 1, the operator can push the release ring 44 to move it closer to the spring 3 45. The release ring 44 will compress the spring 3 45, and then the release ring 44 will abut against the inclined surface of the locking block 43. At this time, the release ring 44 will push the locking block 43 inside the movable slot 2 41 to move closer to the spring 2 42. After the locking block 43 moves, it will no longer be in contact with the outer surface of the reversing slot tube 1. At this time, the locking block 43 will move into the groove 47. When the locking block 43 is no longer in contact with the outer surface of the reversing slot tube 1, the reversing slot tube 1 and the reversing slot tube 2 will separate, that is, the reversing slot tube 1 and the reversing slot tube 2 will no longer be tightly attached, and the reversing slot tube 2 can be rotated arbitrarily.

[0025] like Figure 3 , Figure 4 , Figures 8 to 10 As shown, an auxiliary component for connecting the commutator tube 2 and the busbar 6 is provided together. The auxiliary component includes two sets of side guard plates 71 fixedly connected to the sides of the commutator tube 2 and the busbar 6 that are close to each other. Each set of side guard plates 71 has two plates. The two side guard plates 71 on the commutator tube 2 are located outside the two side guard plates 71 on the busbar 6. The sides of the two side guard plates 71 on the commutator tube 2 that are close to each other are provided with movable slots 72. Each movable slot 72 is fixedly connected to a spring 73. Each spring 73 is fixedly connected to an auxiliary disk 74 at the end away from the movable slot 72. The two side guard plates 71 on the busbar 6 that are close to the auxiliary disk 74 are provided with auxiliary slots 75.

[0026] It should be noted that the conductive sheet 5 has a fastening hole at one end between the reversing slot tube 2 and the busbar slot 6. Both sets of side guard plates 71 have through holes corresponding to the conductive sheet 5. Multiple auxiliary plates 74 have through holes. When fastening the conductive sheet 5, the bolt rod can be inserted through the through hole of one side guard plate 71. During this process, it will pass through the through hole on the auxiliary plate 74, then through the fastening hole of the conductive sheet 5, and finally out through the through hole of the other side guard plate 71. It can then be fastened by the threaded connection of the nut.

[0027] Specifically, when connecting the reversing slot 2 to the busbar 6, the operator pushes the busbar 6 closer to the reversing slot 2. The two side guard plates 71 on the busbar 6 gradually enter between the two side guard plates 71 on the reversing slot 2 and come into contact with the auxiliary plate 74. As the busbar 6 continues to move closer, the side guard plates 71 push the auxiliary plate 74 into the movable slot 72. During the movement of the auxiliary plate 74, the spring 73 is compressed. When the auxiliary plate 74 and the auxiliary slot 75 are concentrically aligned, the elastic reset action of the spring 73 causes the auxiliary plate 74 to embed into the auxiliary slot 75. Internally, this assists in aligning the conductive sheet 5 on the busbar trunking 6 with the conductive sheet 5 on the commutation tube 2, achieving initial contact and positioning. This eliminates the need for construction personnel to repeatedly adjust the conductive sheet 5, significantly reducing the difficulty of alignment, lowering the technical requirements for construction personnel, and improving installation efficiency. It also avoids problems such as insufficient overlap of the conductive sheet 5, excessive contact resistance, and abnormal temperature rise caused by misalignment. Furthermore, it prevents scratching the anti-oxidation coating of the conductive sheet 5 during alignment, avoids deformation of the conductive sheet 5 caused by forced tightening, ensures synchronous alignment of multi-phase conductive sheets 5, avoids the hidden dangers of phase misalignment and poor contact, and improves connection reliability.

[0028] It should be noted that after the initial positioning described above, the conductive plate 5 on the reversing slot tube 2 and the conductive plate 5 on the busbar slot 6 can be fastened together by using a bolt rod. The bolt rod is passed through the through hole of the side guard plate 71, the fastening hole of the conductive plate 5 and the through hole of the auxiliary plate 74, and finally connected to the bolt rod by the thread of the nut, thereby making the conductive plate 5 in the reversing slot tube 2 and the conductive plate 5 in the busbar slot 6 fastened together.

[0029] like Figure 1 , Figure 2 and Figure 11 As shown, the reversing tube 2 and the busbar 6 are both provided with a sealing assembly for sealing the connection between the reversing tube 2 and the busbar 6. The sealing assembly includes a magnetic ring 81 fixedly connected to the busbar 6. A bellows 82 is fixedly connected to one end of the reversing tube 2 near the busbar 6. A metal ring 83 is fixedly connected to one end of the bellows 82 near the magnetic ring 81.

[0030] It should be noted that the same sealing component is also provided on the reversing slot tube 1, which can also be used to seal when the reversing slot tube 1 is connected to other busbar slots 6.

[0031] Specifically, after the reversing duct 2 is connected to the busbar 6, the reversing duct 2 and the busbar 6 can be sealed. The worker pulls the metal ring 83, causing the metal ring 83 to move closer to the busbar 6. The metal ring 83 causes the bellows 82 to unfold. When the metal ring 83 is close to the busbar 6, it will contact the magnetic ring 81. At this time, the magnetic ring 81 will magnetically attract the metal ring 83. The bellows 82 can seal the reversing duct 2 and the busbar 6. It is suitable for the modification and maintenance of the already installed busbar 6. After unfolding, it can adapt to different docking gaps and size deviations on site. There is no need to customize the sealing parts, which reduces the production cost. At the same time, there is no need to apply glue on site, avoiding problems such as waiting for the glue layer to cure, uneven sealing, and easy cracking. It can greatly improve the construction efficiency, and can also achieve full-enclosed sealing, blocking the intrusion of water, dust and salt spray, improving the protection level, and making disassembly and maintenance convenient.

[0032] It should be noted that when the busbar 6 and the reversing tube 2 are assembled at a certain angle, the bellows 82 can be unfolded in a bent manner. The bellows 82 can adapt to any angle of assembly between the busbar 6 and the reversing tube 2, ensuring the sealing performance of assembly at different angles and improving the sealing effect. In addition, if the end of the reversing tube 1 away from the reversing tube 2 is connected to another busbar 6, the sealing operation can be performed by unfolding the bellows 82 on the reversing tube 1.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A busbar trunking system with commutation function, characterized in that, It includes a first reversing slot tube (1), a second reversing slot tube (2) and a busbar (6). Multiple conductive plates (5) are provided inside the first reversing slot tube (1), the second reversing slot tube (2) and the busbar (6). An adjustment component for adjusting the rotation angle of the first reversing slot tube (1) and the second reversing slot tube (2) is provided between the first reversing slot tube (1) and the second reversing slot tube (2). The adjustment assembly includes a rotating groove (31) on the surface of the first reversing tube (1) near the second reversing tube (2), a rotating ring (32) is fixedly connected to the side of the second reversing tube (2) near the first reversing tube (1), the rotating ring (32) slides inside the rotating groove (31), the first reversing tube (1) and the second reversing tube (2) are both provided with a locking assembly for locking and sealing the first reversing tube (1) and the second reversing tube (2), and an auxiliary assembly for assisting the connection between the second reversing tube (2) and the busbar (6) is also provided between the second reversing tube (2) and the busbar (6). The auxiliary components include two sets of side guards (71) fixedly connected to the reversing slot tube 2 (2) and the busbar trough (6) on the side close to each other. Each set of side guards (71) has two. The two side guards (71) on the reversing slot tube 2 (2) are located outside the two side guards (71) on the busbar trough (6). The side close to each other of the two side guards (71) on the reversing slot tube 2 (2) is provided with a movable slot 3 (72). A spring 4 (73) is fixedly connected inside each movable slot 3 (72). An auxiliary disk (74) is fixedly connected to the end of each spring 4 (73) away from the end connected to the movable slot 3 (72). An auxiliary slot (75) is provided on the side of the two side guards (71) on the busbar trough (6) near the auxiliary disk (74). A sealing component for sealing the connection between the reversing slot tube 2 (2) and the busbar trough (6) is provided on both the reversing slot tube 2 (2) and the busbar trough (6).

2. The busbar trunking with commutation function according to claim 1, characterized in that, The conductive sheet (5) in the first commutator tube (1) and the conductive sheet (5) in the second commutator tube (2) are both set to a semi-circular ring at their closest ends. The first commutator tube (1), the second commutator tube (2) and the busbar (6) are all assembled by non-perforated riveting of magnesium-aluminum alloy profiles with excellent heat dissipation and good conductivity, and are covered with a polyester film with good insulation properties inside.

3. The busbar trunking with commutation function according to claim 1, characterized in that, The adjustment assembly also includes multiple limiting grooves (33) arranged in a ring array on the surface of the reversing groove tube 1 (1) near the reversing groove tube 2 (2). Multiple movable grooves 1 (34) arranged in a ring array are opened on the surface of the reversing groove tube 2 (2) near the reversing groove tube 1 (1). A spring 1 (35) is fixedly connected inside each movable groove 1 (34). A limiting block (36) is fixedly connected to the end of each spring 1 (35) away from the end connected to the movable groove 1 (34). Multiple limiting blocks (36) slide in the corresponding movable groove 1 (34). The end of each limiting block (36) away from the spring 1 (35) protrudes out of the movable groove 1 (34). The end of each limiting block (36) protruding out of the movable groove 1 (34) abuts against the groove wall of the limiting groove (33).

4. The busbar trunking with commutation function according to claim 3, characterized in that, The cross section of the rotating groove (31) is set to L-shape, the cross section of the rotating ring (32) is set to L-shape, and there is a space between the side of the rotating ring (32) away from the reversing groove tube two (2) and the groove wall of the rotating groove (31). Each limiting groove (33) is set to a semi-circular shape, and the end of each limiting block (36) away from the spring one (35) is set to a spherical shape.

5. The busbar trunking with commutation function according to claim 1, characterized in that, The locking assembly includes multiple movable slots (41) arranged in a ring array on the reversing slot tube (2). Each movable slot (41) is fixedly connected to a spring (42). Each spring (42) is fixedly connected to a locking block (43) at the end away from the movable slot (41). Multiple locking blocks (43) slide in the corresponding movable slot (41). A release ring (44) is slidably connected to the outer surface of the reversing slot tube (1). Multiple springs (45) arranged in a ring array are fixedly connected between the release ring (44) and the outer surface of the reversing slot tube (1). A sealing ring (46) is fixedly connected to the side of the reversing slot tube (1) and the reversing slot tube (2) that are close to each other.

6. The busbar trunking with commutation function according to claim 5, characterized in that, The locking block (43) has an inclined surface at the end away from the second spring (42), so that the locking block (43) can slide into the interior of the second movable groove (41). The outer surface of the reversing groove tube (1) has a groove (47) and two sealing rings (46) corresponding to each other. Both sealing rings (46) are made of rubber.

7. The busbar trunking with commutation function according to claim 1, characterized in that, The conductive sheet (5) has a fastening hole at one end between the reversing slot tube (2) and the busbar slot (6). Both sets of side guard plates (71) have through openings corresponding to the conductive sheet (5), and multiple auxiliary plates (74) have through holes.

8. The busbar trunking with commutation function according to claim 1, characterized in that, The sealing assembly includes a magnetic ring (81) fixedly connected to the busbar (6), a bellows (82) fixedly connected to one end of the reversing tube (2) near the busbar (6), and a metal ring (83) fixedly connected to one end of the bellows (82) near the magnetic ring (81).

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