Safety protection type bus duct socket and plugging structure

Abstract

The invention relates to a safety protection type bus duct socket and plugging structure, and belongs to the technical field of bus ducts, the safety protection type bus duct socket and plugging structure comprises a bus duct and a socket assembly, a bus duct body H profile is provided with a plugging port, a socket seat is installed at the plugging port, and the socket seat comprises a plugging seat, a protection unit and a connector; the socket seat is fixedly installed on the plugging port, a seat body of the socket seat is provided with five sockets, the phases of the five sockets are N, L3, L2, L1 and PE respectively, and the sockets correspond to the bus duct bus socket row; the protection unit comprises a cover plate, a first protection part and a second protection part; the cover plate covers the socket seat, the first protective part is detachably mounted on the socket seat, and the second protective parts are movably mounted on the sockets in a one-to-one correspondence manner; the connectors are installed in the jacks in a one-to-one correspondence manner, and the connectors are fixedly connected with the bus duct bus. According to the bus duct socket, a triple protection structure is adopted, the socket adopts an error-proofing design, the protection performance is good, the installation safety is high, and the grounding performance is good.

Description

Technical Field

[0001] This invention belongs to the field of busbar trunking technology, specifically relating to a safety-protected busbar trunking socket and connection structure. Background Technology

[0002] Busbar jacks are interface devices used to connect to junction boxes in a busbar system, allowing power to be branched from the main busbar for flexible power distribution. A busbar is an enclosed metal structure made of copper or aluminum busbars, used to distribute large amounts of power to distributed systems, commonly found in high-rise buildings, industrial plants, and other similar environments. Jacks, as a key component, are typically located on the side walls of the busbar and branch power supply is achieved through junction boxes, facilitating the expansion or adjustment of power and lighting circuits.

[0003] Existing technologies for high-density busbar trunking have limited protection for their connectors, leading to installation errors, unreliable grounding, and poor operational stability, failing to meet factory requirements. Conventional busbar trunking connectors also exhibit poor sealing and low dust and water resistance, impacting their insulation performance. For example, existing patent CN206727591U only provides double sealing strip protection, lacking triple protection, error prevention, and priority grounding designs; CN106300189A focuses on dust collection and cleaning, lacking protective combinations and safe connector design; and CN104242196B does not address the protective design of busbar connectors. Furthermore, existing busbar trunking connectors lack protective measures when connected to connector boxes, posing certain safety hazards. For instance, the interlocking mechanism in existing patent CN108767791A only achieves overall fixation of the connector box and busbar trunking, resulting in low safety and reliability during connector insertion.

[0004] In summary, there is an urgent need for a safe and protective busbar trunking socket and busbar trunking connection structure to solve the problems of existing busbar trunking sockets having limited protection, easy installation errors, and unreliable grounding. Summary of the Invention

[0005] The purpose of this invention is to provide a safe and protective busbar trunking socket and connection structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a safety-protected busbar trunking socket, comprising a busbar trunking and a socket assembly, wherein the busbar trunking body has a socket interface, and the socket assembly is installed on the socket interface, comprising a socket base, a protective unit, and a connector; the socket base is fixedly installed on the socket interface, and its base body has a plurality of sockets, each socket corresponding to a busbar in the busbar trunking; the protective unit comprises a cover plate, a first protective member, and a second protective member; the cover plate covers the socket base, the first protective member is detachably installed on the socket base to restrict foreign objects from entering all sockets, and the second protective member is movably installed on each socket to restrict foreign objects from entering the socket when no pin is inserted; the connector is installed on each socket and is fixedly connected to the busbar in the busbar trunking.

[0007] Preferably, the socket body facing the busbar trough has an installation groove, and a sealing element is installed in the installation groove; when the socket body is installed on the busbar trough interface, the sealing element fits into the interface; the socket body facing the cover plate has an installation hole, and the busbar trough has a threaded hole at the corresponding position of the installation hole; the socket body is fixedly installed on the busbar trough by connecting bolts passing through the installation hole and threadedly connected to the threaded hole.

[0008] Preferably, the cover plate is rotatably fitted onto the socket via a pivot. The socket has several inwardly recessed mounting grooves along its outer circumference to form recessed mounting holes. The cover plate facing the socket has a cover plate corresponding to the mounting holes. The cover plate has a sealing gasket on the inner side of the cover plate, and the socket has a mounting boss at the corresponding position. When the cover plate is fitted onto the socket, the sealing gasket fits against the mounting boss. The cover plate has a locking hole with a locking buckle installed inside. The socket has a locking hole at the corresponding position. When the cover plate is fitted onto the socket, the locking buckle locks into the locking hole.

[0009] Preferably, the socket includes a first socket, a second socket, a third socket, a fourth socket, and a fifth socket; the socket has a first insertion channel and a second insertion channel connected along the insertion direction, and the first insertion channel is located above the second insertion channel. The second insertion channel is interference-fitted with the connector, and the width of the first insertion channel is greater than the width of the second insertion channel; the bottom two ends of the second insertion channel extend outward to form a connector insertion guide groove; one of the five sockets of the socket is a PE socket, and the connector of the PE socket is higher than the connectors of the other sockets.

[0010] Preferably, the connector includes an integrally formed plug end and a connecting end; the plug end includes an integrally formed top plug block, a middle plug block, and a bottom plug block; both the top and bottom plug blocks are cuboid structures, the width of the top plug block is greater than the width of the bottom plug block, and the two side walls of the middle plug block are recessed inward to form a middle transition structure where the overall width of the middle plug block is less than the width of the top plug block and equal to the width of the bottom plug block; the connecting end includes an upper connecting block and a lower connecting block, the width of the upper connecting block is less than the width of the lower connecting block, and the width of the lower connecting block is equal to the width of the top plug block; the top of the lower connecting block protrudes upward to form a first plug boss with a triangular cross-section, and the bottom plug block and the lower connecting block form a first plug groove on both sides of the upper connecting block; the bottom of the lower connecting block is provided with a second plug groove; the two sides of the lower connecting block are recessed inward to form an arc-shaped welding groove.

[0011] Preferably, the busbar of the busbar trunking has a protruding plug-in block with a matching shape at a position corresponding to the first and second plug-in slots of the connector, and a third plug-in slot at a position corresponding to the lower connector block; the width of the third plug-in slot is greater than the width of the lower connector block, and a welding cavity is formed between the groove wall at both ends of the third plug-in slot and the arc-shaped welding groove of the lower connector block, and a second plug-in boss with a matching shape is provided at a position corresponding to the second plug-in slot of the third plug-in slot.

[0012] Preferably, the five sockets on the socket are staggered to prevent incorrect insertion; a guide rod is fixed in the middle of the first insertion channel entrance side of the socket; the third protective component is a rubber pad, which is rotatably installed on both sides of the guide rod of the socket; the second protective component is a waterproof membrane, which covers the socket.

[0013] Preferably, the busbar trunking includes a housing and busbars; the housing includes two H-shaped profiles and two U-shaped profiles, the two H-shaped profiles are arranged in parallel relative to each other, and the two U-shaped profiles are arranged in parallel relative to each other between the two H-shaped profiles to form a busbar mounting cavity; several busbars are inserted into the busbar mounting cavity in parallel at intervals, with both ends extending out of the busbar mounting cavity to form connection ends; the H-shaped profiles are provided with drainage holes at corresponding positions on the U-shaped profiles.

[0014] This invention also provides a busbar trunking plug-in structure, which includes a safety-protected busbar plug and a plug-in box; the plug-in box includes a box body, a positioning component, and a plug assembly; the box body is provided with a plug opening, and the box body is installed on the plug interface of the busbar trunking through the positioning component, with the plug opening and the plug interface being opposite each other; the plug assembly is installed on the plug opening, and includes a number of plugs consistent with the number of connectors, with the plugs being plugged into the connectors of the plug; the height of the PE plug among the plugs is higher than that of the other plugs; the plug includes a plug block, two springs, and two plug pieces; the two plug pieces are symmetrically installed on the plug block, and the two springs are symmetrically installed on the plug block, with the springs located on the outer side of the plug pieces; the inner surfaces of the springs and plug pieces have an arc-shaped structure; the surface of the plug pieces is provided with a silver plating layer.

[0015] Preferably, the positioning assembly includes a positioning plate and a locking unit; the positioning plate is installed on the outside of the plug-in interface of the plug-in box, and a limiting plate is provided on the plate body at the position corresponding to the side of the plug-in interface beam, and the height of the limiting plate is greater than the height of the plug protruding outside the box body; a limiting groove is provided on at least one limiting plate on both sides of the positioning plate; a positioning rod is provided at the position corresponding to the limiting groove of the busbar trunking. The locking unit includes a first locking component and a second locking component. The first locking component is installed on the front side of the plug-in box, with one end slidably connected to the busbar trough and the other end extending into the box door of the plug-in box. The second locking component is installed on the rear side of the plug-in box, with one end slidably connected to the busbar trough and the other end rotatably connected to the box body. The first locking component includes two sets of symmetrically arranged main locking rods. One end of each main locking rod is provided with a first locking hook, which is perpendicular to the main locking rod and used to insert into the groove of the busbar trough. The first locking component slides along the groove of the busbar trough via the first locking hook. The other end of each main locking rod is provided with a limiting part, which is inserted into the box door of the plug-in box. The box door of the plug-in box is rotatably connected to the plug-in box via a hinge, and a limiting groove is provided on the side of the box door for the limiting part of the main locking rod to be inserted. A first adjustment groove is provided in the middle of the main locking rod, and a first adjustment block disposed on the front surface of the plug-in box passes through the first adjustment groove, so that both ends of the main locking rod can swing on the front surface of the plug-in box; the rod body of the main locking rod near the first locking hook foot protrudes outward to form a first abutting end; when the plug-in box is plugged into the busbar groove, the first abutting end of the main locking rod abuts against the busbar groove to limit the swing of the main locking rod on the surface of the plug-in box; the second locking assembly includes two sets of symmetrically arranged secondary locking rods, one end of which is provided with a second locking hook foot, the second locking hook foot being perpendicular to the... The auxiliary locking rod is designed to be inserted into the groove of the busbar trough, and the second locking assembly slides along the groove of the busbar trough via the second locking hook foot. The other end of the auxiliary locking rod is provided with a second adjustment groove, through which a second adjustment block provided on the rear surface of the plug-in box passes, so that both ends of the auxiliary locking rod can swing on the rear surface of the plug-in box. The rod body of the auxiliary locking rod near the second locking hook foot protrudes outward to form a second abutment end. When the plug-in box is plugged into the busbar trough, the second abutment end of the auxiliary locking rod abuts against the busbar trough to limit the swing of the auxiliary locking rod on the surface of the plug-in box.

[0016] Beneficial Effects: 1. The safety-protected busbar socket of this invention adopts a triple-protection structure, including a cover plate, a waterproof membrane, and rubber gaskets installed on each socket to improve the socket's protective performance. When the busbar socket is not in use, the cover plate closes to the socket base to prevent foreign objects from entering the socket, providing good dustproof performance. The waterproof membrane covers the socket base, covering all sockets to improve waterproof performance and enhance the waterproofness of the busbar socket in different environments such as storage and transportation before use. To ensure that foreign objects do not fall into the socket when it is plugged into the connection box, rubber gaskets are installed at the sockets to prevent foreign objects from falling into the socket during the plugging process, providing good protection.

[0017] 2. Based on the foregoing, the socket of the present invention has five sockets arranged in a staggered anti-misinsertion structure to avoid reverse insertion during connection, thereby improving connection efficiency while ensuring accurate connection. The staggered arrangement also reduces installation space.

[0018] 3. Based on the foregoing, the socket of the present invention has a first insertion channel and a second insertion channel, with the connector interference-fitted to the second insertion channel. The first insertion channel is located above the second insertion channel, and the width of the first insertion channel is greater than the width of the second insertion channel. The connector of the present invention is configured as an integrally formed insertion end and connection end. The insertion end includes an integrally formed top insertion end, middle insertion end, and bottom insertion end, which form a stepped structure to increase the heat dissipation area of ​​the insertion end. The insertion end is located in the first insertion channel to achieve a high density distribution of busbar socket connectors, low impedance, and each connector has good heat dissipation space, fast heat dissipation, and simple manufacturing structure.

[0019] 4. Based on the foregoing, the bottom two ends of the second insertion channel of the present invention extend outward to form a connector insertion guide groove to ensure the assembly accuracy and assembly efficiency of the connector. The connector of the present invention includes an upper connecting block and a lower connecting block. The width of the upper connecting block is smaller than the width of the lower connecting block, and the width of the lower connecting block is equal to the width of the top plug-in block. The top of the lower connecting block protrudes upward to form a first plug-in boss with a triangular cross-section. The bottom plug-in block and the lower connecting block form first plug-in grooves on both sides of the upper connecting block. The bottom of the lower connecting block is provided with a second plug-in groove. The two sides of the lower connecting block are recessed inward to form arc-shaped welding grooves. This allows the upper connecting block, the first plug-in grooves on both sides, and the second plug-in groove of the lower connecting block to form a positioning and installation groove for the busbar of the busbar trunking, facilitating quick installation. The width of the upper connecting block is smaller than that of the lower connecting block, so that the connector is limited in the plugging direction by the first plug-in groove. This ensures that when the connector is plugged into the plug box, the connection between the connector and the busbar is stable, avoiding premature wear of the connector due to prolonged plugging and unplugging. Meanwhile, the arc-shaped welding grooves on both sides of the lower connecting block can increase the welding area between the connector and the busbar, improving the welding stability. At the same time, the arc-shaped welding grooves can also reduce welding stress concentration and ensure welding effect.

[0020] 5. Based on the foregoing, one of the five sockets of the socket of the present invention is a PE socket. The connector of the PE socket is higher than the connectors of the other sockets, so that the connector of the PE socket can preferably contact the pins of the socket box when plugged in, so as to ensure preferred grounding and high safety in use.

[0021] 6. Based on the foregoing, the busbar trunking of the present invention includes a housing and busbars. The housing comprises two H-shaped profiles and two U-shaped profiles, employing a sandwich structure that is long and dense, preventing a chimney effect. Its structural dimensions are compact, requiring minimal space during installation. To improve the waterproof performance of the housing, the busbar trunking housing of the present invention has drainage holes at corresponding positions on the H-shaped and U-shaped profiles. This ensures that, regardless of whether the busbar trunking is installed vertically or horizontally, moisture accumulated on the U-shaped and H-shaped profiles can be promptly drained through the drainage holes, thereby improving the waterproof rating of the housing.

[0022] 7. Based on the foregoing, the present invention also provides a busbar trunking plug-in structure, comprising a plug-in box. The plug-in box of the present invention includes a box body, a positioning component, and a plug component. The box body has a plug opening, and the plugs of the plug component extend from the plug opening for plugging into the plug-in interface of the busbar plug. The PE plug in the plug box is higher than the other plugs, so that when the plug is plugged into the connector, the PE plug preferably plugs into the PE connector, ensuring priority grounding and improving plugging safety. Simultaneously, the plug of the present invention includes a plug block, two springs, and two plug plates. The plug plates and springs are symmetrically mounted on the plug block, with the springs located on the outer side of the plug plates. This allows the outer springs to provide additional clamping force to the plug plates, ensuring long-term effective contact stress between the plug plates and the connector's plug-in surface. Furthermore, the inner surfaces of the springs and plug plates are arc-shaped, making the plug plates and connectors in line contact, increasing the pressure on the plug-in surface and ensuring current carrying capacity. In addition, the surface of the pins is silver-plated to form a silver plating layer, which increases conductivity.

[0023] 8. Based on the foregoing, the housing of the present invention is positioned for insertion into the plug-in box via a positioning assembly. The positioning assembly includes a positioning plate and a locking unit. The positioning plate is installed on the outside of the plug-in interface of the plug-in box. Limiting plates are respectively provided on the plate corresponding to the side of the plug-in interface beam on the positioning plate, and the height of the limiting plates is greater than the height of the plug protruding from the outside of the housing. Limiting grooves are provided on the limiting plates, and positioning rods are provided on the busbar grooves to achieve a guiding effect through the limiting plates. When not in use, the limiting plates of the positioning plate protect the plugs, ensuring that the plugs will not be damaged by collision during installation and transportation. When in use, the positioning rods are positioned by the limiting grooves. During insertion, the positioning rods slide into the limiting grooves, so that the plugs of the plug-in box are positioned with the connector of the busbar plug-in, and then accurately inserted, ensuring the stable insertion of the busbar plug-in and the plug-in box after insertion, increasing the stability of the mechanical connection structure. Furthermore, the plug-in box of the present invention achieves busbar plug-in safety through a locking unit, enabling the plug-in box door to form an assembly interlock via the locking unit. That is, when the plug-in box door is closed, the locking unit locks the plug-in box, preventing plugging or unplugging. The door cannot be opened when the door is closed or when the circuit breaker inside the plug-in box is energized, thus improving safety during use. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the safety protection busbar socket in an embodiment (the cover plate is not shown). Figure 2 A schematic diagram of the cover plate of the safety protection busbar socket in an embodiment; Figure 3 A schematic diagram of the socket of the safety protection busbar socket in the embodiment (1); Figure 4A schematic diagram of the structure of the socket of the safety protection busbar socket in the embodiment (2); Figure 5 A schematic diagram of the structure of the socket of the safety protection busbar socket in the embodiment (3); Figure 6 for Figure 4 Sectional view at point AA; Figure 7 This is a schematic diagram of the structure of a safety protection busbar socket for an embodiment (the cover plate and socket socket are not shown). Figure 8 A schematic diagram of the connector structure of the safety protection busbar socket in an embodiment; Figure 9 A schematic diagram of the busbar trunking connection structure in an embodiment; Figure 10 A schematic diagram of the plug-in box of the busbar trunking plug-in structure in an embodiment; Figure 11 A side view of the plug-in box of the busbar trunking plug-in structure in the embodiment (1); Figure 12 (2) is a structural side view of the plug-in box of the busbar trunking plug-in structure in the embodiment. Figure 13 This is a schematic diagram of the first locking component and the installation structure of the cabinet door in the busbar trunking plug-in structure of the embodiment. Figure 14 This is a schematic diagram of the pin plate structure of the busbar trunking plug-in structure in an embodiment.

[0025] In the diagram: 1. Busbar trunking; 2. Socket assembly; 3. Socket socket; 4. Connector; 5. Cover plate; 6. Mounting groove; 7. Mounting hole; 8. Mounting boss; 9. Locking hole; 10. Locking hole; 11. First socket; 12. Second socket; 13. Third socket; 14. Fourth socket; 15. Fifth socket; 16. First insertion channel; 17. Second insertion channel; 18. Insertion guide groove; 19. Guide rod; 20. Top insertion block; 21. Middle insertion block; 22. Bottom insertion block; 23. Upper connecting block; 24. Bottom insertion block; 25. First insertion groove; 26. Second insertion groove ; 27. Welding groove; 28. H-shaped profile; 29. ​​U-shaped profile; 30. Drainage hole; 31. Plug box; 32. Plug assembly; 33. Plug block; 34. Spring; 35. Plug piece; 36. Positioning plate; 37. Limiting plate; 38. Limiting groove; 39. First locking assembly; 40. Second locking assembly; 41. Main locking rod; 42. First locking hook; 43. Limiting part; 44. Limiting groove; 45. First adjusting groove; 46. First abutment end; 47. Secondary locking rod; 48. Second locking hook; 49. Second adjusting groove; 50. Second abutment end; 51. Box door; 52. Rubber retaining pad. Detailed Implementation

[0026] 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.

[0027] Please see Figures 1-14 This embodiment provides a safety-protected busbar trunking connector, including a busbar trunking 1 and a connector assembly 2. The busbar trunking body has a connector, and the connector assembly is installed on the connector. It includes a connector base 3, a protective unit, and a connector 4. The connector base is fixedly installed on the connector, and its base has a plurality of connectors, each corresponding to a busbar in the busbar trunking. The protective unit includes a cover plate 5, a waterproof membrane (not shown), and rubber pads 52. The cover plate covers the connector base, and the waterproof membrane is detachably installed on the connector base to restrict foreign objects from entering all connectors. The rubber pads are movably installed on the connectors to restrict foreign objects from entering the connectors when no pins are inserted. The connectors are installed on the connectors and are fixedly connected to the busbar trunking.

[0028] In this embodiment, the socket body facing the busbar trough has an installation groove 6, and a sealing strip is installed in the installation groove. When the socket body is installed on the busbar trough interface, the sealing strip fits against the interface. The socket body facing the cover plate has an installation hole 7. The busbar trough has a threaded hole at the corresponding position of the installation hole. The socket body is fixedly installed on the busbar trough by connecting bolts passing through the installation hole and threadedly connected to the threaded hole. In this embodiment, the cover plate rotates to fit onto the socket seat via a pivot. The socket seat has four inwardly recessed mounting grooves along its outer circumference to form four recessed mounting holes. The four mounting holes are arranged in pairs on both sides of the socket seat. The cover plate facing the socket seat has a cover plate corresponding to the mounting holes. The cover plate has a sealing gasket on the inner side of the cover plate. The socket seat has a mounting boss at the position corresponding to the sealing gasket. When the cover plate is fitted onto the socket seat, the sealing gasket fits against the mounting boss 8. The cover plate has a locking hole 9, in which a locking buckle is installed. The socket seat has a locking hole 10 at the position corresponding to the locking hole. When the cover plate is fitted onto the socket seat, the locking buckle locks into the locking hole.

[0029] Furthermore, the socket of this embodiment includes a first socket 11, a second socket 12, a third socket 13, a fourth socket 14, and a fifth socket 15; the sockets are provided with a first insertion channel 16 and a second insertion channel 17 connected along the insertion direction, and the first insertion channel is located above the second insertion channel. The second insertion channel is interference-fitted with the connector, and the width of the first insertion channel is greater than the width of the second insertion channel; the bottom two ends of the second insertion channel extend outward to form a connector insertion guide groove 18; one of the five sockets of the socket is a PE socket, and the connector of the PE socket is 2mm higher than the connectors of the other sockets. The five sockets on the socket of this embodiment are staggered to prevent incorrect insertion; a guide rod 19 is fixed in the middle of the entrance side of the first insertion channel of the socket; rubber pads are rotatably installed on both sides of the guide rod of the socket.

[0030] The connector in this embodiment includes an integrally formed plug end and a connecting end; the plug end includes an integrally formed top plug block 20, a middle plug block 21, and a bottom plug block 22; both the top plug block and the bottom plug block are cuboid structures, the width of the top plug block is greater than the width of the bottom plug block, and the two side walls of the middle plug block are recessed inward to form a middle transition structure in which the overall width of the middle plug block is less than the width of the top plug block and equal to the width of the bottom plug block; the connecting end includes an upper connecting block 23 and a lower connecting block 24, the width of the upper connecting block is less than the width of the lower connecting block, and the width of the lower connecting block is equal to the width of the top plug block; the top of the lower connecting block protrudes upward to form a first plug boss with a triangular cross-section, and the bottom plug block and the lower connecting block form a first plug groove 25 on both sides of the upper connecting block; the bottom of the lower connecting block is provided with a second plug groove 26; the two sides of the lower connecting block are recessed inward to form an arc-shaped welding groove 27. Among them, the busbar of the busbar trunking has a protruding plug block with a matching shape at the corresponding position of the first plug slot and the second plug slot of the connector, and a third plug slot at the corresponding position of the lower connector block; the width of the third plug slot is greater than the width of the lower connector block, and the groove wall at both ends of the third plug slot forms a welding cavity with the arc-shaped welding groove of the lower connector block, and a second plug boss with a matching shape is provided at the corresponding position of the third plug slot and the second plug slot.

[0031] In addition, the busbar trunking in this embodiment includes a housing and busbars; the housing includes two H-shaped profiles 28 and two U-shaped profiles 29, the two H-shaped profiles are arranged in parallel relative to each other, and the two U-shaped profiles are arranged in parallel relative to each other between the two H-shaped profiles to form a busbar mounting cavity; a number of busbars are inserted into the busbar mounting cavity in parallel at intervals, and both ends extend out of the busbar mounting cavity to form connection ends; the H-shaped profiles are provided with drainage holes 30 at corresponding positions of the U-shaped profiles.

[0032] Meanwhile, this embodiment also provides a busbar trunking plug-in structure, which includes a safety protection busbar plug and a plug-in box 31; the plug-in box includes a box body, a positioning component, and a plug assembly 32; the box body is provided with a plug port, and the box body is installed on the plug interface of the busbar trunking through the positioning component, with the plug port and the plug interface being opposite each other; the plug assembly is installed on the plug port, and it includes a number of plugs consistent with the number of connectors, with the plugs being plugged into the connectors of the plug; the height of the PE plug among the plugs is 5mm higher than the other plugs; the plug includes a plug block 33, two springs 34, and two plug pieces 35; the two plug pieces are symmetrically installed on the plug block, and the two springs are symmetrically installed on the plug block, with the springs located on the outer side of the plug pieces; the inner surfaces of the springs and plug pieces are arc-shaped; the surface of the plug pieces is provided with a silver plating layer.

[0033] Furthermore, the positioning component of this embodiment includes a positioning plate 36 and a locking unit; the positioning plate is installed on the outside of the plug-in interface of the plug-in box, and a limiting plate 37 is provided on the plate body at the position corresponding to the side of the plug-in interface beam, and the height of the limiting plate is greater than the height of the plug protruding outside the box body; a limiting groove 38 is opened on at least one limiting plate on both sides of the positioning plate; a positioning rod is provided at the position corresponding to the busbar groove; The locking unit includes a first locking component 39 and a second locking component 40. The first locking component is installed on the front side of the plug-in box, and one end of the first locking component is slidably connected to the busbar trough, while the other end extends into the box door of the plug-in box. The second locking component is installed on the rear side of the plug-in box, and one end of the first locking component is slidably connected to the busbar trough, while the other end is rotatably connected to the box body. The first locking component includes two sets of symmetrically arranged main locking rods 41. One end of the main locking rod is provided with a first locking hook 42, which is perpendicular to the main locking rod and is used to insert into the groove of the busbar trough. The first locking component slides along the groove of the busbar trough through the first locking hook. The other end of the main locking rod is provided with a limiting part 43, which is inserted into the box door 51 of the plug-in box. The box door of the plug-in box is rotatably connected to the plug-in box through a hinge, and a limiting groove 44 is opened on the side of the box door for the limiting part of the main locking rod to be inserted. A first adjustment groove 45 is provided in the middle of the main locking rod, and a first adjustment block provided on the front surface of the plug-in box passes through the first adjustment groove, so that both ends of the main locking rod can swing on the front surface of the plug-in box; the rod body of the main locking rod near the first locking hook foot protrudes outward to form a first abutment end 46; when the plug-in box is plugged into the busbar groove, the first abutment end of the main locking rod abuts against the busbar groove to limit the swing of the main locking rod on the surface of the plug-in box; the second locking assembly includes two sets of symmetrically arranged secondary locking rods 47, one end of which is provided with a second locking hook foot 48, the second locking hook foot vertically... The auxiliary locking rod is positioned directly above the busbar groove and is used to insert into the groove of the busbar groove. The second locking assembly slides along the groove of the busbar groove via the second locking hook foot. The other end of the auxiliary locking rod has a second adjustment groove 49, through which a second adjustment block disposed on the rear surface of the plug-in box passes, allowing both ends of the auxiliary locking rod to swing on the rear surface of the plug-in box. The rod body of the auxiliary locking rod near the second locking hook foot protrudes outward to form a second abutment end 50. When the plug-in box is plugged into the busbar groove, the second abutment end of the auxiliary locking rod abuts against the busbar groove to limit the swing of the auxiliary locking rod on the surface of the plug-in box.

[0034] Working Principle: In this embodiment, the safety protection busbar trunking socket and busbar trunking connection structure require initial assembly. The operator opens the cover and removes the waterproof film covering the socket. Then, the plug-in box of the busbar trunking connection structure is mounted on the busbar trunking slot. Specifically, the main locking rod of the first locking component and the auxiliary locking rod of the second locking component are mounted on the busbar trunking slot. Next, the plug-in box is slid along the busbar trunking slot to the busbar trunking interface. When the limiting groove of the limiting plate on the positioning plate of the plug-in box slides to the positioning rod position on the busbar trunking, it indicates that the plug-in port of the plug-in box corresponds to the busbar trunking interface. At this time, the box door can be opened by swinging the main locking rod and auxiliary locking rod to check that the internal circuit breaker is in a connected state. Then, the plug-in box is pushed towards the busbar trunking interface for insertion. As the plug-in box moves upward, the first and second stopping ends of the main and auxiliary locking rods abut against the busbar trough. The plug tabs inside the plug-in box then engage with the connectors in the busbar trough, and the plug tabs, under the elastic action of the outer spring, ensure a secure connection with the connectors. Because the first and second stopping ends abut against the busbar trough, the main and auxiliary locking rods cannot swing, preventing the box door from opening when the circuit breaker is energized.

[0035] 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 safety-protected busbar trunking connector, comprising a busbar trunking and a connector assembly, characterized in that: The busbar trunking body has a plug-in interface, and the plug-in assembly is installed on the plug-in interface, which includes a plug socket, a protective unit, and a connector. The plug socket is fixedly installed on the plug-in interface, and its body has several plugs, each plug corresponding to a busbar in the busbar trunking. The protective unit includes a cover plate, a first protective component, and a second protective component. The cover plate covers the plug socket, the first protective component is detachably installed on the plug socket to restrict foreign objects from entering all plugs, and the second protective component is movably installed on each plug to restrict foreign objects from entering the plug when no plug is inserted. The connector is installed on each plug and is fixedly connected to the busbar in the busbar trunking.

2. The safety protection type busbar trunking connector according to claim 1, characterized in that, The socket seat has an installation groove on the side facing the busbar trough, and a sealing element is installed in the installation groove. When the socket seat is installed on the busbar trough interface, the sealing element fits into the interface. The socket seat has an installation hole on the side facing the cover plate, and a threaded hole is opened in the busbar trough at the corresponding position of the installation hole. The socket seat is fixedly installed on the busbar trough by connecting bolts passing through the installation hole and threadedly connected to the threaded hole.

3. The safety protection type busbar trunking connector according to claim 2, characterized in that, The cover plate rotates and fits onto the socket seat via a pivot. The socket seat has several inwardly recessed mounting grooves along its outer circumference to form recessed mounting holes. The cover plate facing the socket seat has a cover plate corresponding to the mounting holes. A sealing gasket is provided on the inner side of the cover plate. A mounting boss is provided on the socket seat at a position corresponding to the sealing gasket. When the cover plate is closed onto the socket seat, the sealing gasket fits against the mounting boss. The cover plate has a locking hole with a locking buckle installed inside. A locking hole is provided on the socket seat at a position corresponding to the locking hole. When the cover plate is closed onto the socket seat, the locking buckle locks into the locking hole.

4. The safety protection type busbar trunking connector according to claim 1, characterized in that, The socket includes a first socket, a second socket, a third socket, a fourth socket, and a fifth socket. Each socket has a first and a second interconnected insertion channel along the insertion direction, with the first insertion channel located above the second insertion channel. The second insertion channel is interference-fitted with the connector, and the width of the first insertion channel is greater than the width of the second insertion channel. The bottom two ends of the second insertion channel extend outwards to form a connector insertion guide groove. One of the five sockets in the socket is a PE socket, and the connector of the PE socket is higher than the connectors of the other sockets.

5. A safety-protected busbar trunking connector according to claim 4, characterized in that, The connector includes an integrally formed plug end and a connecting end; the plug end includes an integrally formed top plug block, a middle plug block, and a bottom plug block; the top plug block and the bottom plug block are both cuboid structures, the width of the top plug block is greater than the width of the bottom plug block, and the two side walls of the middle plug block are recessed inward to form a middle transition structure where the overall width of the middle plug block is less than the width of the top plug block and equal to the width of the bottom plug block; the connecting end includes an upper connecting block and a lower connecting block, the width of the upper connecting block is less than the width of the lower connecting block, and the width of the lower connecting block is equal to the width of the top plug block; the top of the lower connecting block protrudes upward to form a first plug boss with a triangular cross-section, and the bottom plug block and the lower connecting block form a first plug groove on both sides of the upper connecting block; the bottom of the lower connecting block is provided with a second plug groove; the two sides of the lower connecting block are recessed inward to form an arc-shaped welding groove.

6. A safety-protected busbar trunking connector according to claim 5, characterized in that, The busbar trunking has protruding plug blocks of matching shape at positions corresponding to the first and second plug slots of the connector, and a third plug slot at a position corresponding to the lower connector block. The width of the third plug slot is greater than the width of the lower connector block, and the groove walls at both ends of the third plug slot form a welding cavity with the arc-shaped welding groove of the lower connector block. The third plug slot also has a second plug boss of matching shape at a position corresponding to the second plug slot.

7. A safety-protected busbar trunking connector according to claim 4, characterized in that, The five sockets on the socket are staggered to prevent incorrect insertion; a guide rod is fixed in the middle of the first insertion channel entrance side of the socket; the third protective component is a rubber pad, which is rotatably installed on both sides of the guide rod of the socket; the second protective component is a waterproof film, which covers the socket.

8. A safety-protected busbar trunking connector according to claim 1, characterized in that, The busbar trunking includes a housing and busbars; the housing includes two H-shaped profiles and two U-shaped profiles, the two H-shaped profiles are arranged in parallel relative to each other, and the two U-shaped profiles are arranged in parallel relative to each other between the two H-shaped profiles to form a busbar mounting cavity; a number of busbars are inserted into the busbar mounting cavity in parallel at intervals, with both ends extending out of the busbar mounting cavity to form connection ends; the H-shaped profiles are provided with drainage holes at corresponding positions on the U-shaped profiles.

9. A busbar trunking connection structure, comprising the safety-protected busbar trunking socket and connection box as described in any one of claims 1-8; characterized in that: The plug-in box includes a box body, a positioning component, and a plug assembly. The box body has plug ports and is installed on the plug interface of the busbar trunking via the positioning component, with the plug ports facing each other. The plug assembly is installed on the plug ports and includes a number of plugs matching the number of connectors. The plugs are plugged into the connectors of the plug ports. The PE plug is higher than the other plugs. Each plug includes a plug block, two spring contacts, and two plug pieces. The two plug pieces are symmetrically installed on the plug block, and the two spring contacts are symmetrically installed on the plug block, with the spring contacts located on the outer side of the plug pieces. The inner surfaces of the spring contacts and plug pieces have an arc-shaped structure. The surface of the plug pieces is plated with a silver layer.

10. A busbar trunking connection structure according to claim 9, characterized in that, The positioning assembly includes a positioning plate and a locking unit; the positioning plate is installed on the outside of the plug-in interface of the plug-in box, and a limiting plate is provided on the plate body at the position corresponding to the side of the plug-in interface beam, and the height of the limiting plate is greater than the height of the plug protruding outside the box body; a limiting groove is provided on at least one limiting plate on both sides of the positioning plate; a positioning rod is provided at the position corresponding to the limiting groove of the busbar groove; The locking unit includes a first locking component and a second locking component; the first locking component is installed on the front side of the plug-in box, and one end of the first locking component is slidably connected to the busbar trunking, and the other end extends into the box door of the plug-in box; The second locking component is installed on the rear side of the plug-in box, and one end of the first locking component is slidably connected to the busbar trough, and the other end is rotatably connected to the box body; the first locking component includes two sets of symmetrically arranged main locking rods, one end of each main locking rod is provided with a first locking hook foot, the first locking hook foot is set perpendicular to the main locking rod, and is used to insert into the groove of the busbar trough, and the first locking component slides along the groove of the busbar trough through the first locking hook foot; the other end of the main locking rod is provided with a limiting part, the limiting part is inserted into the door of the plug-in box; the door of the plug-in box is rotatably connected to the plug-in box through a hinge, and a limiting groove is opened on the side of the door for the limiting part of the main locking rod to be inserted; The main locking rod has a first adjustment groove in the middle, through which a first adjustment block disposed on the front surface of the plug-in box passes, allowing the two ends of the main locking rod to swing on the front surface of the plug-in box; the rod body of the main locking rod near the first locking hook protrudes outward to form a first abutting end; when the plug-in box is plugged into the busbar groove, the first abutting end of the main locking rod abuts against the busbar groove to limit the swing of the main locking rod on the surface of the plug-in box; the second locking assembly includes two sets of symmetrically arranged secondary locking rods, one end of which is provided with a second locking hook, the second locking hook being perpendicular to the secondary locking rod and used to insert into the groove of the busbar groove, and the second locking assembly slides along the groove of the busbar groove through the second locking hook; The other end of the secondary locking rod is provided with a second adjustment groove, through which a second adjustment block disposed on the rear surface of the plug box passes, so that both ends of the secondary locking rod can swing on the rear surface of the plug box; the rod body of the secondary locking rod near the second locking hook foot protrudes outward to form a second abutment end; when the plug box is plugged into the busbar groove, the second abutment end of the secondary locking rod abuts against the busbar groove to limit the swing of the secondary locking rod on the surface of the plug box.

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