High-reliability bus duct system and connector

Abstract

The invention relates to a high-reliability bus duct system and a connector, and belongs to the technical field of bus ducts, the high-reliability bus duct system comprises a connecting plate, a fastening assembly and a protection assembly, and the fastening assembly comprises a connecting piece and a connecting piece; the two connecting plates are oppositely attached to the side plates at the end parts of the bus duct in parallel; the protection assembly comprises a cover plate, a sealing piece and a drainage piece. The two cover plates are oppositely installed on the two sides of the two connecting plates in parallel, the cover plates are perpendicular to the connecting plates, and an installation cavity with the two sides open and the interior hollow is formed between the cover plates. The cover plate where the openings in the two sides of the mounting cavity are located is connected with the end part of the bus duct, and a bus connecting cavity is defined by the cover plate, the connecting plate and the side plate at the end part of the bus duct; the connecting sheet is mounted in the bus connecting cavity to form a bus connecting groove; the connecting piece penetrates through the connecting plate and the connecting sheet; sealing pieces are respectively arranged between the cover plate and the connecting plate and between the side plate and the connecting piece; the outer side of the bus connection cavity is provided with a drainage member. The bus duct connector is good in protection effect, long in service cycle and low in manufacturing cost.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of bus ducts, and particularly relates to a high-reliability bus duct system and a connector. BACKGROUND

[0002] A bus duct connector is an electrical connector used to connect electrical bus ducts. An electrical bus duct is a long, strip-shaped structure usually made of conductive material, used to transmit electrical current and power, commonly used in power distribution systems, electrical control cabinets, and electrical equipment. The main function of the bus duct connector is to connect different electrical equipment, power sources or loads to the bus duct to achieve the distribution and transmission of electrical current. Its working principle involves transmitting electrical current from one electrical bus duct to another or connecting with other electrical equipment to achieve power distribution and control.

[0003] The bus duct connector in the prior art adopts a semi-closed structure to connect two bus ducts. Due to the semi-closed structure, it is easy to be invaded by dust and moisture during long-term use, which causes early corrosion and damage of the bus, affecting the use effect. For example, the existing patent application No. CN203278147U discloses a bus duct connector, which uses double-head torque bolts to fix the copper bar (equivalent to the bus) connection, without 360° three-dimensional protection, and foreign objects can invade through the side of the connector and the double-head torque bolt. In addition, in the prior art, during use, the electrical components generate heat due to use, and there is thermal expansion and contraction. This causes the components of the bus duct connector to loosen due to deformation or early aging due to frequent deformation of the components. Therefore, expansion joints need to be set on the transmission current and power line to compensate for the deformation of the components caused by thermal expansion and contraction of the electrical components, so that the existing bus duct structure has many components, the structure is complex, and the maintenance cost is high. Therefore, a high-reliability bus duct system and a connector are needed to solve the problems of low protection effect, poor use effect and high maintenance cost of the existing bus duct connector. SUMMARY

[0004] The purpose of the present application is to provide a high-reliability bus duct system and a connector to solve the problems raised in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a busbar connector, comprising a connecting plate, a fastening assembly, and a protective assembly. The fastening assembly includes a connector and a connecting piece. Two connecting plates are parallel to each other and attached to the side plates at the ends of the busbar. The protective assembly includes a cover plate, a sealing element, and a drainage element. Two cover plates are parallel to each other and installed on both sides of the two connecting plates, with the cover plates perpendicular to the connecting plates, forming a hollow mounting cavity with openings on both sides. The cover plates with openings on both sides of the mounting cavity are connected to the ends of the busbar. The cover plates, connecting plates, and side plates at the ends of the busbar form a busbar connection cavity. A plurality of connecting pieces are installed parallel to each other at intervals in the busbar connection cavity, forming a plurality of busbar connection slots. The connector passes through the connecting plate and the connecting piece via an insulating sleeve to form a busbar fastener. A sealing element is installed on the cover plate, and sealing elements are installed on the connecting plate and between the side plate and the connector, respectively, to restrict foreign objects from entering the busbar connection cavity. A drainage element is provided on the outside of the busbar connection cavity.

[0006] Preferably, plugs are fixedly installed on both ends of the cover plate. The plugs are fixedly installed on the side of the busbar trunking perpendicular to the busbar trunking, and the area facing the end of the busbar trunking is provided with mounting holes. The side plate of the busbar trunking is fixedly connected to the plugs by connecting bolts and threaded connection to the mounting holes. A protective component is provided on the connecting plate. The protective component is installed on the outside of the connecting component to restrict foreign objects from entering the busbar connection cavity from the connecting component.

[0007] Preferably, the fastening assembly includes several insulating partitions, which are installed parallel to each other in the busbar connection cavity at relative intervals. The insulating partitions and the side plates of the busbar trunking, as well as the space between two adjacent insulating partitions, form connection slots with a number consistent with the number of busbars in the busbar trunking. A connecting piece is installed in the connection slot between the insulating partition and the side plate of the busbar trunking, and a busbar connection slot is formed between the connecting piece and the insulating partition or the side plate of the busbar trunking. Two oppositely arranged connecting pieces are installed in the connection slot between two adjacent insulating partitions, and a busbar insertion slot is formed between the two connecting pieces.

[0008] Preferably, the connecting plate includes a connecting plate body, two sub-plates, two protruding plates, and two limiting plates. The two sub-plates are fixedly installed at both ends of the connecting plate body. The two protruding plates are installed on the side of the connecting plate body away from the busbar connection cavity, and the two protruding plates are arranged relatively at intervals to form a connecting component mounting groove with the connecting plate body. The two limiting plates are installed on the plate body of the connecting plate body located on the side of the busbar connection cavity, and the two limiting plates are arranged relatively at intervals to form limiting grooves for the end side plates on both sides of the busbar groove. The two sub-plates located on the side of the busbar connection cavity are respectively provided with sealing component mounting grooves, and waterproof sealing strips are installed in the sealing component mounting grooves.

[0009] Preferably, the top plates of the two protruding plates are respectively provided with bent ends that bend towards the same side of the sub-plate, and the bent ends of the protruding plates and the protruding plates form a connecting groove; the protective member is installed at both ends in the connecting groove and covers the upper side of the connecting member mounting groove of the two protruding plates; at least one of the two cover plates is provided with a drainage hole.

[0010] Preferably, a first protective member is installed between the cover plate on the side of the connecting plate and the connecting plate, and the first protective member covers the outside of the connecting plate; both ends of the first protective member cover the outside of the busbar trunking side plate, and its ends are bent inward to form a sealing end that abuts against the outside of the busbar trunking side plate; a drain pipe is provided on the outside of the sealing end at both ends of the first protective member, and the drain pipe is installed in the busbar trunking.

[0011] Preferably, the connector is a double-ended torque bolt; both ends of the double-ended torque bolt and the bolt in the connector mounting groove are equipped with cup-shaped sealing rings, and the double-ended bolt side is provided with a torque indicator, and the other end is provided with an anti-rotation nut, which is snapped between two protruding plates; the cup-shaped cavity of the cup-shaped sealing ring is provided with an annular sealing groove, and a silicone sealing ring is installed in the annular sealing groove, and the inner diameter of the silicone sealing ring is smaller than the outer diameter of the double-ended torque bolt.

[0012] Preferably, the connecting piece and the connecting component are provided with annular bosses at corresponding positions; the two connecting pieces between two adjacent insulating partitions are installed with the annular bosses abutting each other, forming two U-shaped limiting grooves; the outer ends of the insulating partitions are provided with several annular grooves arranged in the same circle on both sides of the plate.

[0013] Preferably, a sealing rubber gasket is installed on the plate on the side of the busbar connection cavity of the cover plate; when the two ends of the cover plate are fixedly connected to the busbar trough, the sealing rubber gasket is interference-fitted with the connecting plate and the busbar trough respectively; a sealing element is provided between the plug of the cover plate and the busbar trough.

[0014] The present invention also provides a busbar trunking, including a busbar trunking connector and two sub-busbar trunkings connected to the busbar trunking connector; both sub-busbar trunkings are provided with busbars, and the busbars are electrically connected to the connecting pieces of the busbar trunking connector; each sub-busbar trunking includes a busbar trunking housing and internal busbars; the busbar trunking housing includes two H-shaped profiles and two U-shaped profiles; the two H-shaped profiles are arranged relatively parallel to each other, and the two U-shaped profiles are arranged relatively parallel between the two H-shaped profiles to form a busbar mounting cavity; a plurality of busbars are inserted parallel and spaced within the busbar mounting cavity, with both ends extending out of the busbar mounting cavity to form connecting ends; plugs are respectively installed on the H-shaped profiles of the sub-busbar trunkings, and a busbar trunking side plate is installed between the plugs on the two H-shaped profiles.

[0015] Beneficial Effects: 1. The busbar connector of this invention adopts a 360° three-dimensional protective structure. It is attached to the busbar of the busbar through a connecting plate, and a cover plate is installed perpendicular to the connecting plate on the side. An opening on both sides and a hollow mounting cavity are formed between the connecting plate and the cover plate. The cover plate where the openings on both sides of the mounting cavity are located is connected to the end of the busbar. The cover plate, the connecting plate, and the side plate at the end of the busbar form a busbar connection cavity. A sealing element is installed on the cover plate of this application, and sealing elements are installed on the connecting plate and between the side plate and the connecting element to restrict foreign objects from entering the busbar connection cavity. Passive 360° three-dimensional protection is achieved. In addition, a drainage element is provided on the outside of the busbar connection cavity of this application to achieve active drainage protection, which makes the busbar connector of this application have a good sealing and protection effect and extends the service life.

[0016] 2. Based on the foregoing, this invention optimizes the double-ended torque bolt. A cup-shaped sealing ring is provided between the connecting plate and the double-ended torque bolt, and a silicone sealing ring is added to the cup-shaped sealing ring. The inner diameter of the silicone sealing ring is smaller than the bolt size, thus achieving a seal between the connecting plate and the double-ended torque bolt through the cup-shaped sealing ring, preventing foreign objects from entering. The busbar connector of this invention, by providing a cup-shaped sealing ring at the double-ended torque bolt, allows the connector to absorb the deformation of the fastening components caused by thermal expansion and contraction. In power transmission lines composed of busbars and busbar connectors, expansion joints are not required for a certain length of the line, simplifying the power transmission line setup and reducing costs.

[0017] 3. Based on the foregoing, the busbar connector of the present invention takes into account actual assembly. The busbar connector can be set with the busbar parallel to the ground or with the busbar perpendicular to the ground. When the busbar is set perpendicular to the ground, the cover plate of this application is set parallel to the ground. By fixing plugs at both ends of the cover plate, the plugs are fixedly installed in the busbar, and a seal is provided between the plugs and the busbar to prevent water from entering from the cover plate side. A sealing rubber gasket is also provided on the inner side of the cover plate, and water now enters from the cover plate and the busbar. On the side of the connecting plate, since the connecting plate is set vertically, a fireproof sealing strip is provided between the connecting plate and the side plate of the busbar. Water will only flow along the connecting plate into the bottom cover plate and will not enter from the connecting plate side. A drain hole is provided on the bottom cover plate to actively drain water without causing water accumulation and reducing damage to the sealing rubber gasket of the cover plate by water debris. Considering that the double-headed torque bolts on the side connecting plate are directly exposed on the outside, they are prone to corrosion and aging. This application provides protection for the double-headed torque bolts by installing a protective component on the connecting plate to cover the outside of the bolts. When the busbar of the bus trough is set parallel to the ground, the connecting plate is set parallel to the ground, while the cover plate is set perpendicular to the ground. Water flow protection on the cover plate side is achieved through the protection of the cover plate body and the plug between the cover plate and the bus trough, preventing water from entering from the cover plate side. Water flow on the connecting plate side will not enter from the connecting plate and the double-headed torque bolts, but it will collect at the root of the side plate at the end of the bus trough. To prevent water intrusion at this point, this application installs a first protective component between the cover plate and the connecting plate on the connecting plate side. The first protective component covers the outside of the connecting plate; both ends of the first protective component cover the outside of the side plate of the bus trough, and its ends are bent inward to form a sealing end that abuts against the outside of the side plate of the bus trough. Since the first protective component is installed on the outside of the connecting plate, there is no need to install a protective component on the plate where the double-headed torque bolts are located to avoid exposing the bolts. Instead, the first protective component provides direct protection, optimizing the protective component installation and improving product applicability. In this case, water may accumulate at the connection between the outside of the first protective component and the busbar trunking. To reduce water erosion of the busbar trunking and the first protective component at this location, a drain pipe is installed to actively drain the accumulated water, improving the protective effect.

[0018] 4. Based on the foregoing, the connecting piece of the present invention adopts a double-sided overlapping arrangement, and an annular boss is provided on the connecting piece. The two connecting pieces between two adjacent insulating partitions are installed with the annular boss abutting each other, forming two U-shaped limiting grooves. This makes it more convenient and faster to insert the busbar end overlapping position of the busbar when connecting with the busbar trough, thus improving the installation efficiency.

[0019] 5. Based on the foregoing, the outer end of the insulating partition of the present invention is provided with a plurality of concentric annular grooves on both sides of the plate body to increase the electrical clearance and creepage distance of the connector components, thereby improving electrical safety, increasing the environmental adaptability of the busbar connector and meeting the requirements of high power density design. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the busbar connector in Example 1; Figure 2 This is a schematic diagram of the installation structure of the connecting plate and fastening assembly in Embodiment 1; Figure 3 This is a schematic diagram of the connecting piece of the busbar trunking connector in an embodiment. Figure 4 This is a schematic diagram of the insulating partition of the busbar connector in an embodiment; Figure 5 This is a schematic diagram of the connection plate of the busbar connector in an embodiment. Figure 6 This is a schematic diagram of the busbar trunking structure in Example 1; Figure 7 This is a schematic diagram of the structure of the first protective component of the busbar connector in Embodiment 2.

[0021] In the diagram: 1. Connecting plate; 2. Connector; 3. Connecting piece; 4. Side plate; 5. Cover plate; 6. Plug; 7. Closed-end foamed sealing rubber gasket; 8. Insulating partition; 9. Annular boss; 10. Annular groove; 11. Connecting plate body; 12. Sub-plate; 13. Protruding plate; 14. Limiting plate; 15. Connector mounting groove; 16. Limiting groove; 17. Sealing mounting groove; 18. Waterproof sealing strip; 19. Connecting slot; 20. Protective plate; 21. Drain hole; 22. Bowl-shaped sealing ring; 23. Torque indicator; 24. Anti-rotation nut; 25. First protective plate; 26. Busbar trunking; 27. H-shaped profile; 28. U-shaped profile; 29. ​​Busbar; 30. Sealing end. Detailed Implementation

[0022] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the embodiments. Example 1

[0023] Please see Figures 1-6This embodiment provides a busbar trunking connector, including a connecting plate 1, a fastening assembly, and a protective assembly. The fastening assembly includes a connector 2 and a connecting piece 3. Two connecting plates are parallel to each other and attached to the side plates 4 at the ends of the busbar trunking. The protective assembly includes a cover plate 5, a seal, and a drainage component. Two cover plates 5 are installed parallel to each other on both sides of the two connecting plates, and the cover plates are set perpendicular to the connecting plates, forming a hollow mounting cavity with openings on both sides. The cover plates with openings on both sides of the mounting cavity are connected to the ends of the busbar trunking. The cover plates, connecting plates, and side plates at the ends of the busbar trunking form a busbar connection cavity. Several connecting pieces are installed parallel to each other at intervals in the busbar connection cavity, forming several busbar connection slots. The connector passes through the connecting plate and the connecting piece through an insulating sleeve to form a busbar fastener. A seal is installed on the cover plate, and seals are installed on the connecting plate and between the side plate and the connector to restrict foreign objects from entering the busbar connection cavity. A drainage component is provided on the outside of the busbar connection cavity.

[0024] In this embodiment, plugs 6 are fixedly installed on both ends of the cover plate. The plugs are fixedly installed on the side of the busbar trunking perpendicular to the busbar, and the area facing the end of the busbar trunking is provided with mounting holes. The side plate of the busbar trunking is fixedly connected to the plugs by connecting bolts and threaded connections to the mounting holes. A protective plate is provided on the connecting plate, which is installed on the outside of the connector to restrict foreign objects from entering the busbar connection cavity from the connector. A closed-type foamed sealing rubber gasket 7 is installed on the plate body on the side of the busbar connection cavity of the cover plate. When the two ends of the cover plate are fixedly connected to the busbar trunking, the closed-type foamed sealing rubber gasket is interference-fitted to the connecting plate and the busbar trunking respectively. Waterproof adhesive is provided between the plugs of the cover plate and the busbar trunking. The fastening assembly of this embodiment includes several insulating partitions 8, which are installed parallel to each other in the busbar connection cavity at relative intervals. The insulating partitions and the side plates of the busbar trough, as well as adjacent insulating partitions, form connection slots whose number matches the number of busbars in the busbar trough. A connecting piece is installed in the connection slot between the insulating partition and the side plate of the busbar trough, forming a busbar connection slot between the connecting piece and the insulating partition or the side plate of the busbar trough. Two opposing connecting pieces are installed in the connection slot between two adjacent insulating partitions, forming a busbar insertion slot between the two connecting pieces. Furthermore, in this embodiment, an annular boss 9 is provided at the corresponding position of the connecting piece and the connector. Two connecting pieces between two adjacent insulating partitions are installed by mutual abutment using the annular boss, forming two U-shaped limiting grooves. Several concentric annular grooves 10 are provided on both sides of the outer end of the insulating partition.

[0025] Furthermore, the connecting plate in this embodiment includes a connecting plate body 11, two sub-plates 12, two protruding plates 13, and two limiting plates 14; the two sub-plates are fixedly installed at both ends of the connecting plate body, and the two protruding plates are installed on the side of the connecting plate body away from the busbar connection cavity, and the two protruding plates are arranged relatively at intervals to form a connecting member mounting groove 15 between them and the connecting plate body; the two limiting plates are installed on the plate body of the connecting plate body located on the side of the busbar connection cavity, and the two limiting plates are arranged relatively at intervals to form limiting grooves 16 on the end side plates of both sides of the busbar groove; the two sub-plates are respectively provided with sealing member mounting grooves 17 on the plate body located on the side of the busbar connection cavity, and waterproof sealing strips 18 are installed in the sealing member mounting grooves.

[0026] In this embodiment, the top plates of the two protruding plates are respectively provided with bent ends that bend toward the same side sub-plate. The bent ends of the protruding plates and the protruding plates form a connecting groove 19. The protective plate 20 is installed at both ends in the connecting groove and covers the upper side of the connecting member mounting groove of the two protruding plates. At least one of the two cover plates is provided with a drainage hole 21.

[0027] In addition, the connector in this embodiment is a double-ended torque bolt; both ends of the double-ended torque bolt and the bolt in which the connector mounting groove is located are equipped with a cup-shaped sealing ring 22, and a torque indicator 23 is provided on the double-ended bolt side, and an anti-rotation nut 24 is provided on the other end, which is snapped between two protruding plates; the cup-shaped cavity of the cup-shaped sealing ring is provided with an annular sealing groove, and a silicone sealing ring is installed in the annular sealing groove, and the inner diameter of the silicone sealing ring is smaller than the outer diameter of the double-ended torque bolt. Example 2

[0028] The difference between Example 2 and Example 1 is as follows: Please refer to... Figure 7 In Embodiment 2, a first protective plate 25 is installed between the cover plate on the side of the connecting plate and the connecting plate. The first protective plate covers the outside of the connecting plate. Both ends of the first protective plate cover the outside of the busbar trunking side plate, and its ends are bent inward to form a sealing end 30 that abuts against the outside of the busbar trunking side plate. Drainage pipes (not shown) are provided on the outside of the sealing ends at both ends of the first protective plate. The drainage pipes are installed in the busbar trunking.

[0029] In addition, this embodiment also provides a busbar trunking, including a busbar trunking connector and two sub-busbar trunkings 26 connected to the busbar trunking connector; both sub-busbar trunkings are provided with busbars, and the busbars are electrically connected to the connecting pieces of the busbar trunking connector. The sub-busbar trunking of this embodiment includes a busbar trunking housing and internal busbars 29; the busbar trunking housing includes two H-shaped profiles 27 and two U-shaped profiles 28; the two H-shaped profiles are arranged relatively parallel to each other, and the two U-shaped profiles are arranged relatively parallel between the two H-shaped profiles to form a busbar mounting cavity; several busbars are inserted parallel and spaced within the busbar mounting cavity, with both ends extending out of the busbar mounting cavity to form connecting ends. In this embodiment, plugs are respectively installed on the H-shaped profiles of the sub-busbar trunking, and a busbar trunking side plate is installed between the plugs on the two H-shaped profiles. The two sides of the cover plate of the busbar trunking connector are connected to the two sub-busbar trunkings through plugs, and the connecting plate is attached to the side plates of the two sub-busbar trunkings, wherein the side plates of the sub-busbar trunkings abut against the limiting plates of the connecting plate.

[0030] Working Principle: In this embodiment of the high-reliability busbar trunking system and connector, the first step is to connect the busbar trunking connector to two sub-busbar trunkings. During installation, the busbars of the sub-busbar trunkings are positioned by the U-shaped limiting groove formed by the annular boss between two adjacent connecting pieces of the fastening assembly. The busbars of the two sub-busbar trunkings are quickly inserted into the U-shaped limiting groove, and then the double-headed torque bolts are tightened to firmly secure the connecting pieces and busbars. Next, according to the usage requirements of the busbar trunking, the user selects and installs a suitable protective plate on the connecting plate, with the busbar trunking parallel or perpendicular to the ground as the assembly requirement. The selected protective plate is installed on the outside of the connecting plate, and finally, the cover plate is installed. This completes the connection between the busbar trunking connector and the busbar trunking.

[0031] In this embodiment, the busbar connector provides protection along the H-section of the busbar through a cover plate and plugs, while the U-section side is protected by a waterproof sealing strip between the connecting plate and the side plate of the busbar, preventing foreign objects from entering through the connection plate and side plate. Protection at the connection plate and the double-ended torque bolt is provided by a bowl-shaped sealing ring fitted onto the double-ended torque bolt. Furthermore, to prevent premature corrosion and aging caused by exposed double-ended torque bolts, this embodiment uses a protective plate or a first protective plate to protect the double-ended torque bolts, extending their service life. When a protective plate is selected, the busbar is assembled with the busbar perpendicular to the ground, and the connecting plate is located on the side of the busbar. Water flows downwards along the connecting plate and does not collect at the side plate of the busbar. The water finally drains out through the waterproof holes in the bottom cover plate. When selecting the first protective plate, the busbar trunking is assembled with the busbar parallel to the ground. The connecting plate is located at the top of the busbar trunking. Water flows along the first protective plate to both sides, eventually converging at the sealing ends of the first protective plate and the U-shaped section of the busbar trunking. Since the sealing ends of the first protective plate abut against the U-shaped section of the busbar trunking, water will not intrude at this point. However, because this area is under prolonged immersion after the water flow converges, a drain pipe is installed here to drain the collected water and prevent corrosion of the components. Considering that the busbar trunking shell in this embodiment is a U-shaped section, the drain pipe can be directly installed through the cover plate located on the side for easy water drainage. Since the cover plate located on the side is assembled perpendicular to the ground, water will only flow along the outside of the cover plate and will not intrude through it. The protection at the junction of the cover plate and the H-shaped section is achieved by a plug. Furthermore, the plug is assembled vertically, so water will not converge at the H-shaped section outside the plug.

[0032] The busbar connector in this embodiment adopts a multi-protection structure and an optimized double-head torque bolt configuration to achieve a synergistic improvement in IP66 protection and ease of installation, and it does not require an expansion joint, resulting in low operating costs.

[0033] As described above, although the invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the invention itself. Various changes in form and detail may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A busbar connector, comprising a connecting plate, a fastening assembly, and a protective assembly, characterized in that: The fastening assembly includes a connector and a connecting piece; two connecting plates are parallel to each other and attached to the side plates at the ends of the busbar trough; the protective assembly includes a cover plate, a sealing element, and a drainage element; two cover plates are installed parallel to each other on both sides of the two connecting plates, and the cover plates are set perpendicular to the connecting plates, forming a hollow installation cavity with openings on both sides; the cover plates with openings on both sides of the installation cavity are connected to the ends of the busbar trough, and the cover plates, connecting plates, and side plates at the ends of the busbar trough together form a busbar connection cavity; several connecting pieces are installed parallel to each other at intervals in the busbar connection cavity, forming several busbar connection slots; the connector penetrates through the connecting plates and connecting pieces to form a busbar fastener; a sealing element is installed on the cover plate, and sealing elements are installed on the connecting plate and between the side plates and the connector to restrict foreign objects from entering the busbar connection cavity; a drainage element is provided on the outside of the busbar connection cavity.

2. A busbar connector according to claim 1, characterized in that, The cover plate has plugs fixedly installed on both ends. The plugs are fixedly installed on the side of the busbar trunking perpendicular to the busbar trunking, and the area facing the end of the busbar trunking is provided with mounting holes. The side plate of the busbar trunking is fixedly connected to the plugs by connecting bolts and threaded connection to the mounting holes. The connecting plate is provided with a protective component, which is installed on the outside of the connecting component to restrict foreign objects from entering the busbar connecting cavity from the connecting component.

3. A busbar connector according to claim 1, characterized in that, The fastening assembly includes several insulating partitions, which are installed parallel to each other in the busbar connection cavity at relative intervals. The insulating partitions and the side plates of the busbar trunking, as well as the number of adjacent insulating partitions, form connection slots that are consistent with the number of busbars in the busbar trunking. A connecting piece is installed in the connection slot between the insulating partition and the side plate of the busbar trunking, and a busbar connection slot is formed between the connecting piece and the insulating partition or the side plate of the busbar trunking. Two oppositely arranged connecting pieces are installed in the connection slot between two adjacent insulating partitions, and a busbar insertion slot is formed between the two connecting pieces.

4. A busbar connector according to claim 2, characterized in that, The connecting plate includes a connecting plate body, two sub-plates, two protruding plates, and two limiting plates. The two sub-plates are fixedly installed at both ends of the connecting plate body. The two protruding plates are installed on the side of the connecting plate body away from the busbar connection cavity, and the two protruding plates are arranged relatively at intervals to form a connecting component mounting groove with the connecting plate body. The two limiting plates are installed on the plate body of the connecting plate body located on the side of the busbar connection cavity, and the two limiting plates are arranged relatively at intervals to form limiting grooves for the end side plates on both sides of the busbar groove. The two sub-plates located on the side of the busbar connection cavity are respectively provided with sealing component mounting grooves, and waterproof sealing strips are installed in the sealing component mounting grooves.

5. A busbar connector according to claim 4, characterized in that, The top plates of the two protruding plates are respectively provided with bent ends that bend towards the same side of the sub-plate, and the bent ends of the protruding plates and the protruding plates form a connecting groove; the protective member is installed at both ends in the connecting groove and covers the upper side of the connecting member mounting groove of the two protruding plates; at least one of the two cover plates is provided with a drainage hole.

6. A busbar connector according to claim 4, characterized in that, A first protective member is installed between the cover plate on the side of the connecting plate and the connecting plate, and the first protective member covers the outside of the connecting plate; both ends of the first protective member cover the outside of the busbar trunking side plate, and its ends are bent inward to form a sealing end that abuts against the outside of the busbar trunking side plate; a drain pipe is provided on the outside of the sealing end at both ends of the first protective member, and the drain pipe is installed in the busbar trunking.

7. A busbar connector according to claim 5 or 6, characterized in that, The connector is a double-ended torque bolt; both ends of the double-ended torque bolt are fitted with bowl-shaped sealing rings on the bolts where the connector mounting grooves are located, and a torque indicator is provided on the double-ended bolt side, while the other end is fitted with an anti-rotation nut, which is snapped between two protruding plates; the bowl-shaped cavity of the bowl-shaped sealing ring is provided with an annular sealing groove, and a silicone sealing ring is installed in the annular sealing groove, with the inner diameter of the silicone sealing ring being smaller than the outer diameter of the double-ended torque bolt.

8. A busbar connector according to claim 3, characterized in that, The connecting piece and the connector are provided with annular protrusions at corresponding positions; the two connecting pieces between two adjacent insulating partitions are installed with annular protrusions abutting each other, forming two U-shaped limiting grooves; the outer end of the insulating partition is provided with several annular grooves arranged in the same circle on both sides of the plate.

9. A busbar connector according to claim 2, characterized in that, A sealing rubber gasket is installed on the plate body located on the side of the busbar connection cavity of the cover plate; when the two ends of the cover plate are fixedly connected to the busbar groove, the sealing rubber gasket is interference-fitted with the connecting plate and the busbar groove respectively; a sealing element is provided between the plug of the cover plate and the busbar groove.

10. A busbar trunking system, characterized in that, The system includes the busbar connector as described in any one of claims 1-9, and further includes two sub-busbar trunks connected to the busbar trunk connector; each sub-busbar trunk is provided with a busbar, and the busbar is electrically connected to the connecting piece of the busbar trunk connector; the sub-busbar trunk includes a busbar trunk housing and internal busbars; the busbar trunk housing includes two H-shaped profiles and two U-shaped profiles; the two H-shaped profiles are arranged relatively parallel to each other, and the two U-shaped profiles are arranged relatively parallel between the two H-shaped profiles to form a busbar mounting cavity; a plurality of busbars are inserted parallel and spaced within the busbar mounting cavity, with both ends extending out of the busbar mounting cavity to form connecting ends; plugs are respectively installed on the H-shaped profiles of the sub-busbar trunks, and a busbar trunk side plate is installed between the plugs on the two H-shaped profiles.

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