A switchboard internal busbar row insulation protection connecting structure and an assembling method thereof

Abstract

The application discloses a kind of inside busbar row insulation protection connecting structure of switchboard and its assembly method, belong to switchboard technical field, its technical key points include connecting component, busbar row component, smearing component and driving component.The application, when connecting switchboard component and busbar row component, bolt movement and rotation can be controlled by connecting component, so that the subsequent connection of switchboard component and busbar row component can be completed, and before connection, power composite grease needs to be applied on the surface of busbar row component, thereby reducing contact resistance.At this time, when applying to the end of busbar row component away from the maintenance side, it can be achieved by smearing component, and when in use, part of connecting component and smearing component can be driven to move by driving component, and it can also be used to drive connecting component to operate subsequently, thereby performing rapid connection operation.

Description

Technical Field

[0001] This invention belongs to the field of power distribution cabinet technology, specifically relating to an insulation protection connection structure for the internal busbar of a power distribution cabinet and its assembly method. Background Technology

[0002] A distribution cabinet is a final-level power device in a power distribution system used for power distribution, protection, monitoring and control. It is a general term for motor control centers. It distributes the power of the previous level distribution equipment to the nearest load, while providing overload, short circuit and leakage protection for the load. It can also monitor operating parameters such as voltage and current. It is widely used in various scenarios such as industrial production, buildings, and data centers.

[0003] Busbars are conductive materials used in power distribution systems, primarily made of copper or aluminum. They are responsible for transmitting power from transformers to distribution cabinets and from main switches to branch switches. They typically take the form of flat strips, rectangular strips, or tubular structures, with phase sequence markings on their surface using colored paint or heat-shrink tubing. They are widely used in new energy vehicles, wind power, photovoltaics, rail transit, and data centers. In distribution cabinets, busbars act as the "main artery" for power collection and distribution, connecting multiple electrical circuits to achieve low-impedance, high-efficiency current transmission.

[0004] In the existing technology, the connection methods of busbars inside the distribution cabinet mainly include three types: bolt fixing, plug-in, and flexible connection. Among them, bolt fixing usually uses high-strength bolts to press the busbar to the terminal block of the switch cabinet. When connecting, it is necessary to ensure that the torque meets the requirements of the product manual to prevent overheating due to excessive looseness or damage to the copper busbar due to excessive tightness.

[0005] However, since the nut needs to be placed on the maintenance side during connection, the staff needs to use a torque wrench to tighten the bolts one by one during the connection process, which makes the installation efficiency low. To address this issue, we propose an insulation protection connection structure for the internal busbar of the distribution cabinet and its assembly method. Summary of the Invention

[0006] The purpose of this invention is to provide an insulation protection connection structure for the internal busbar of a distribution cabinet and its assembly method, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: An insulation and protection connection structure for a busbar inside a distribution cabinet includes a distribution cabinet assembly, a connecting assembly, a busbar assembly, a coating assembly, and a driving assembly. The busbar assembly is disposed inside the distribution cabinet assembly, the connecting assembly is disposed inside the distribution cabinet assembly and above the busbar assembly, and the driving assembly is disposed outside the connecting assembly. The connecting assembly and the driving assembly cooperate to connect the distribution cabinet assembly and the busbar assembly. The coating assembly is disposed on the side of the connecting assembly and is used to apply electrical composite grease to the surface of the busbar assembly before connecting the distribution cabinet assembly and the busbar assembly.

[0008] Preferably, the distribution cabinet assembly includes a cabinet body, the surface of which is connected to a cabinet door via hinges, the surface of which is provided with multiple monitoring devices and control buttons, the inner wall of which is fixedly connected with wire clips, the interior of which is fixedly connected with a connecting bar, and the interior of which is provided with a main circuit breaker.

[0009] Preferably, the busbar assembly includes a second mounting bar, which is connected to the connecting bar by a bolt group. An insulating snap-fit ​​is fixedly connected to the upper end of the second mounting bar. Multiple busbars are arranged in front of the second mounting bar. Each of the multiple busbars has a busbar terminal at its upper end, and the multiple busbar terminals penetrate and extend out of the surface of the insulating snap-fit. Insulators are arranged between the multiple busbars.

[0010] Preferably, the connecting assembly includes a first mounting row, which is connected to the connecting row by a bolt group. A movable member is slidably connected to the surface of the first mounting row. A gradient groove is formed on the surface of the movable member. A positioning member is fixedly connected to the surface of the movable member. A push plate is slidably connected to the inner wall of the positioning member. A plurality of first gears are rotatably connected to the surface of the push plate.

[0011] Preferably, the connecting assembly further includes a first rack, an extension plate is slidably connected to the surface of the push plate, the first rack is fixedly connected to the lower end of the extension plate, and the first rack meshes with a plurality of first gears. A moving groove is formed on the surface of the push plate, and an insertion rod is rotatably connected to the surface of the extension plate. The insertion rod is slidably connected inside the moving groove and disposed inside the gradient groove.

[0012] Preferably, the drive assembly includes a motor, a displacement plate is fixedly connected to the side end of the motor, the displacement plate is slidably connected to the side end of the positioning member, a first abutment member is fixedly connected to the lower end of the displacement plate, a second gear is fixedly connected to the output end of the motor, a second rack is fixedly connected to the surface of the first mounting plate, and the second gear meshes with the second rack.

[0013] Preferably, the drive assembly further includes a lifting member, which is fixedly connected to the surface of the first mounting row. A second abutment is slidably connected to the inner wall of the lifting member, and a plurality of springs are provided between the inner wall of the lifting member and the second abutment.

[0014] Preferably, the coating assembly includes a fixing plate, which is fixedly connected to the upper end of the insulating insert. A plurality of first adjusting members are fixedly connected to the surface of the fixing plate. A coating brush is slidably connected to the side end of the moving member. A first magnet is fixedly connected to the surface of the coating brush. A sliding plate is slidably connected to the side end of the positioning member. A second adjusting member is fixedly connected to the surface of the sliding plate. A second magnet is fixedly connected to the surface of the sliding plate.

[0015] Preferably, the cabinet is equipped with a protective component for insulating and protecting the busbar assembly. The protective component includes a second insulating protective plate, which is fixedly connected to the surface of the insulator. A second extension plate and a third extension plate are fixedly connected to the surface of the second insulating protective plate. A lead screw is rotatably connected between the second extension plate and the third extension plate. A first extension plate is threadedly connected to the surface of the lead screw. A lifting component is fixedly connected to the end of the first extension plate. The first insulating protective plate is located above the lifting component, and the lifting component and the first insulating protective plate are connected by a rotating shaft. A ratchet is fixedly connected to the surface of the lead screw. A ratchet structure is provided at the lower end of the second extension plate, and the ratchet structure engages with the ratchet.

[0016] A method for assembling the internal busbar of a power distribution cabinet. S1. When connecting the busbar terminals and the main circuit breaker terminals, first stably install the main circuit breaker and busbar assembly inside the cabinet, then connect the first mounting bar to the connecting bar through the bolt group to ensure the stable installation of the connecting assembly. S2. After the first installation row is stably set, apply a sufficient amount of electrical compound grease to the surface of the brush. Then, start the motor to drive the second gear to rotate, thereby driving the moving part and the positioning part to move to the left. During the movement, the brush set at the left end of the moving part contacts the surface of the bus terminal or the terminal of the main circuit breaker, thereby applying the electrical compound grease attached to the surface of the brush to the surface of the bus terminal or the terminal of the main circuit breaker. S3. Continue to move the moving parts. When the screw and nut move to the predetermined position, the first contacting part will contact the lifting part, so that the motor can move upward. At this time, the second gear will move upward, which will disengage it from the second rack and mesh with the first rack. S4. Continue to start the motor, and drive the first rack to move through the second gear, thereby causing the screw / nut to rotate. During the rotation, the screw / nut can be displaced in the direction of the screw / nut, thereby completing the subsequent connection operation.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. The connecting component enables the rapid connection of multiple bolts, allowing the main circuit breaker terminals to be quickly connected to multiple bus terminals. During the connection process, the torque of the bolt connection can be controlled based on the movement distance of the first rack, eliminating the need for a torque wrench and thus improving installation efficiency.

[0018] 2. By setting an applicator at the end of the connecting component, the electrical compound grease can be quickly applied during the movement of the connecting component. Since the connecting component moves at a constant speed, the application of the electrical compound grease is also more uniform.

[0019] 3. By using a single power source to drive the components, the components can be manipulated and operated after the movement of the connected components is controlled, thereby reducing the operating cost of the device.

[0020] 4. After the connection is completed, the protective components can be used to perform insulation protection work on the entire busbar assembly and the connection area, thereby preventing workers from being injured when opening the distribution cabinet assembly if the internal electrical components are damaged. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a first partially exploded view of the present invention; Figure 3 This is a first partial perspective view of the present invention; Figure 4 This is a second partial perspective view of the present invention; Figure 5 This is a second partial exploded view of the present invention; Figure 6 This is a third partially exploded view of the present invention; Figure 7 This is the fourth partially exploded view of the present invention; Figure 8 This is a schematic diagram of the structure of the moving part of the present invention; Figure 9 This is the fifth partially exploded view of the present invention; Figure 10 This is the sixth exploded view of the present invention; Figure 11 This is a third partial perspective view of the present invention; Figure 12 This is the seventh exploded view of the present invention; Figure 13 For the present invention Figure 12 A magnified view of a portion of point A in the middle.

[0022] In the diagram: 1. Distribution cabinet assembly; 11. Cabinet body; 12. Cabinet door; 13. Cable clamp; 14. Monitoring device; 15. Control button; 16. Main circuit breaker; 17. Connecting bar; 2. Protective assembly; 21. First insulating protective plate; 22. Ratchet; 23. Lifting component; 24. First extension plate; 25. Second extension plate; 26. Third extension plate; 27. Lead screw; 28. Second insulating protective plate; 29. ​​Ratchet structure; 3. Connecting assembly; 31. First mounting bar; 32. Moving component; 33. Positioning component; 34. Expansion plate; 35. First rack; 36. First gear; 37. Push plate; 38. Insertion rod; 39. Gradient groove; 4. Busbar assembly; 41. Second mounting bar; 42. Insulating clip; 43. Busbar; 44. Insulator; 45. Busbar terminal; 5. Coating assembly; 51. Fixing plate; 52. First adjusting component; 53. Coating brush; 54. First magnet; 55. Second adjusting component; 56. Slide plate; 57. Second magnet; 6. Drive assembly; 61. Motor; 62. Second gear; 63. Second rack; 64. Lifting component; 65. Displacement plate; 66. First contact component; 67. Second contact component; 68. Spring. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0024] Please see Figures 1-10 This invention provides an insulation and protection connection structure for the internal busbar of a power distribution cabinet, characterized in that it includes a power distribution cabinet assembly 1, a connecting assembly 3, a busbar assembly 4, an application assembly 5, and a driving assembly 6. The busbar assembly 4 is disposed inside the power distribution cabinet assembly 1, the connecting assembly 3 is disposed inside the power distribution cabinet assembly 1 and above the busbar assembly 4, the driving assembly 6 is disposed outside the connecting assembly 3, and the connecting assembly 3 and the driving assembly 6 cooperate for connecting the power distribution cabinet assembly 1 and the busbar assembly 4. The application assembly 5 is disposed on the side of the connecting assembly 3 and is used to apply electrical composite grease to the surface of the busbar assembly 4 before connecting the power distribution cabinet assembly 1 and the busbar assembly 4.

[0025] Specifically, when connecting the distribution cabinet assembly 1 and the busbar assembly 4, the connecting component 3 can be placed inside the distribution cabinet assembly 1 first. Then, the movement and rotation of the bolts can be controlled by the connecting component 3 to complete the subsequent connection between the distribution cabinet assembly 1 and the busbar assembly 4. Before connection, electrical compound grease needs to be applied to the surface of the busbar assembly 4 to reduce contact resistance. When applying the grease to the end of the busbar assembly 4 away from the maintenance side, it can be done through the grease application component 5. In actual use, in order to control the movement of some connecting components 3 and grease application components 5, a drive component 6 can be set on the connecting component 3. The drive component 6 can drive some connecting components 3 and grease application components 5 to move, and can also be used to drive the operation of the connecting component 3 to perform the connection operation.

[0026] In this embodiment, the power distribution cabinet assembly 1 includes a cabinet body 11. The surface of the cabinet body 11 is connected to a cabinet door 12 via hinges. The surface of the cabinet door 12 is provided with multiple monitoring devices 14 and control buttons 15. The inner wall of the cabinet door 12 is fixedly connected with a wire clip 13. The inside of the cabinet body 11 is fixedly connected with a connecting bar 17. The inside of the cabinet body 11 is provided with a main circuit breaker 16.

[0027] Specifically, during use, the electrical components inside the cabinet 11 can be protected through the cabinet door 12. In order to ensure the stable installation of the main circuit breaker 16, the connecting assembly 3, and the busbar assembly 4, a connecting bar 17 is provided inside the cabinet 11. During use, the main circuit breaker 16, the connecting assembly 3, and the busbar assembly 4 can be detachably connected to the connecting bar 17 using bolts. In order to monitor the inside of the cabinet 11 in real time, multiple monitoring devices 14 can be installed on the surface of the cabinet door 12. In order to control the electrical components inside the cabinet 11, multiple control buttons 15 are installed on the surface of the cabinet door 12. During use, in order to facilitate the subsequent orderly installation of cables, cable clips 13 are installed on the inner wall of the cabinet door 12.

[0028] In this embodiment, the busbar assembly 4 includes a second mounting bar 41, which is connected to the connecting bar 17 by bolts. An insulating insert 42 is fixedly connected to the upper end of the second mounting bar 41. Multiple busbars 43 are provided in front of the second mounting bar 41. Busbar terminals 45 are provided at the upper end of each of the multiple busbars 43, and the multiple busbar terminals 45 penetrate and extend out of the surface of the insulating insert 42. Insulators 44 are provided between the multiple busbars 43.

[0029] Specifically, when setting up the busbar 43, in order to ensure the stable installation of the busbar 43, the second mounting bar 41 and the connecting bar 17 can be detachably connected by bolts. Then, to avoid mutual interference between multiple busbars 43, insulators 44 can be installed between multiple busbars 43 for insulation protection. In use, in order to enable the busbar 43 to be connected to the main circuit breaker 16, busbar terminals 45 are installed on the busbar 43, and the busbar terminals 45 are installed through the insulating inserts 42, thereby ensuring the stable installation of the busbar terminals 45.

[0030] In this embodiment, the connecting assembly 3 includes a first mounting row 31, which is connected to the connecting row 17 by bolts. A movable member 32 is slidably connected to the surface of the first mounting row 31. A gradient groove 39 is formed on the surface of the movable member 32. A positioning member 33 is fixedly connected to the surface of the movable member 32. A push plate 37 is slidably connected to the inner wall of the positioning member 33. A plurality of first gears 36 are rotatably connected to the surface of the push plate 37. The connecting assembly 3 also includes a first rack 35. An extension plate 34 is slidably connected to the surface of the push plate 37. The first rack 35 is fixedly connected to the lower end of the extension plate 34 and meshes with the plurality of first gears 36. A moving groove is formed on the surface of the push plate 37. An insertion rod 38 is rotatably connected to the surface of the extension plate 34 and is slidably connected to the inside of the moving groove and disposed inside the gradient groove 39.

[0031] Specifically, in actual use, the first mounting row 31 and the connecting row 17 can be detachably connected by bolts. A movable part 32 is slidably connected to the surface of the first mounting row 31. During the connection, the movement of the movable part 32 can be controlled to move the nuts and screws required for the connection. At this time, the screw can be inserted into the inside of the first gear 36 and the nut can be inserted into the inside of the positioning part 33. Then, by meshing the second gear 62 with the first rack 35, the motor 61 is started to drive the second gear 62 to rotate in the opposite direction. This can drive the first rack 35 and the extension plate 34 to move to the left. Since the rear end of the extension plate 34 is provided with an insertion rod 38, and the insertion rod 38 slides left and right... The insertion rod 38 is movably connected to the inside of the moving groove and is located inside the gradient groove 39. The depth of the gradient groove 39 decreases from right to left. The end of the insertion rod 38 abuts against the inner wall of the gradient groove 39. Therefore, when the expansion plate 34 moves to the left, it can drive the insertion rod 38 to move together. The inner wall of the gradient groove 39 always abuts against the insertion rod 38, thereby pushing the insertion rod 38 forward. This, in turn, pushes the push plate 37, expansion plate 34, first rack 35, and multiple first gears 36 forward, thereby giving the screw a forward force. At this time, the screw can pass through the terminals of the main circuit breaker 16 and the bus terminal 45 in sequence. With the rotation of the first gears 36, the screw can be driven to rotate, thereby connecting it with the bolt.

[0032] Furthermore, the above structure requires that the subsequent connection operation be achieved by keeping the nut unchanged and rotating the screw during the connection process. In contrast, in the prior art, the standard operation is to rotate the nut while keeping the screw stationary. The specific reasons are as follows: 1. A torque wrench measures the friction and preload between the nut and the contact surface. If the screw is rotated, additional friction will be generated between the screw and the bolt head. This friction will be included in the torque reading, resulting in a lower actual preload acting on the busbar, which does not meet the standard requirements.

[0033] 2. When rotating the nut, the screw remains stationary, preventing it from rotating and rubbing against the busbar, thus avoiding scratching the tin-plated layer or electrical composite grease coating on the contact surface and ensuring stable contact resistance.

[0034] 3. For the commonly used hex socket head cap screws for busbar connections, the standard procedure is to insert the screw into the hole, fix the screw head tightly against the back of the cabinet / busbar, and use a torque wrench to rotate the nut until the preset torque is reached and the torque wrench is triggered.

[0035] Therefore, the above connection method is only applicable when the bolt head is completely blocked by the cabinet / adjacent busbar, there is no space to fix the bolt, and it is impossible to apply a torque wrench to the nut.

[0036] When rotating the screw, additional friction is generated between the screw head and the back of the busbar. This friction is included in the torque wrench reading, resulting in a smaller effective preload on the nut. Therefore, the preset torque value needs to be appropriately increased, usually by 10% to 15%, and the specific adjustment should be made according to the friction coefficient of the contact surface.

[0037] If the torque is not adjusted, it's easy for the torque reading to meet the standard, but the actual preload is insufficient. This can lead to loosening and overheating of the busbars during later operation, creating a safety hazard. In this embodiment, the drive assembly 6 includes a motor 61, a displacement plate 65 fixedly connected to the side end of the motor 61, the displacement plate 65 slidably connected to the side end of the positioning member 33, a first abutment member 66 fixedly connected to the lower end of the displacement plate 65, a second gear 62 fixedly connected to the output end of the motor 61, a second rack 63 fixedly connected to the surface of the first mounting row 31, and the second gear 62 meshing with the second rack 63; the drive assembly 6 also includes a lifting member 64, the lifting member 64 fixedly connected to the surface of the first mounting row 31, a second abutment member 67 slidably connected to the inner wall of the lifting member 64, and a plurality of springs 68 provided between the inner wall of the lifting member 64 and the second abutment member 67.

[0038] Specifically, before the connection operation, in order to move the movable part 32 to facilitate subsequent alignment and connection operations, the second gear 62 can be engaged with the second rack 63. The motor 61 is then started, causing the second gear 62 to rotate. Since a displacement plate 65 is fixedly connected to the side of the motor 61 and slides vertically on the side of the positioning part 33, the motor 61 can move up and down, thereby causing the second gear 62 to engage with either the first rack 35 or the second rack 63. In use, starting the motor 61 rotates the second gear 62. Because the second rack 63 is fixedly mounted, it can push... The positioning member 33 moves, which in turn drives the moving member 32 to move. In actual use, in order to ensure that when the moving member 32 moves to the appropriate position, the screw overlaps with the terminals of the main circuit breaker 16 and the bus terminal 45, the first contact member 66 and the second contact member 67 abut against each other and push it to move downward. The first contact member 66 continues to move. When the two no longer contact each other, the first contact member 66 is positioned above the lifting member 64. The lifting member 64 can push the motor 61 to move upward, so that the second gear 62 meshes with the first rack 35. At this time, the end of the second contact member 67 abuts against the first contact member 66, thereby stabilizing the motor 61.

[0039] In this embodiment, the application component 5 includes a fixing plate 51, which is fixedly connected to the upper end of the insulating insert 42. A plurality of first adjusting members 52 are fixedly connected to the surface of the fixing plate 51. An application brush 53 is slidably connected to the side end of the moving member 32. A first magnet 54 is fixedly connected to the surface of the application brush 53. A sliding plate 56 is slidably connected to the side end of the positioning member 33. A second adjusting member 55 is fixedly connected to the surface of the sliding plate 56. A second magnet 57 is fixedly connected to the surface of the sliding plate 56.

[0040] Specifically, when applying electrical compound grease to the terminals of the main circuit breaker 16 and the surface of the bus terminal 45, a fixing plate 51 is first set on the upper end of the insulating insert 42, and multiple first adjusting members 52 are fixedly set at the rear end of the fixing plate 51. A brush 53 is slidably set at the end of the moving member 32, a sliding plate 56 is slidably set at the end of the positioning member 33, and a second adjusting member 55 is fixedly set at the front end of the sliding plate 56. A first magnet 54 is set at the front end of the brush 53, and a second magnet 57 is set at the rear end of the sliding plate 56. In use, when the moving member 32 and the positioning member 33 move, the second adjusting member 55 will first come into contact with the first adjusting member 52, thereby pushing the sliding plate 56 backward. At this time, the second magnet 57 can attract the first magnet 54, thereby driving the brush 53 to move forward. As the moving member 32 and the positioning member 33 continue to move, the electrical compound grease on the surface of the brush 53 can be applied to the terminals of the main circuit breaker 16 or the surface of the bus terminal 45.

[0041] In this embodiment, a protective component 2 is provided inside the cabinet 11 for insulating and protecting the busbar assembly 4. The protective component 2 includes a second insulating protective plate 28, which is fixedly connected to the surface of the insulator 44. A second extension plate 25 and a third extension plate 26 are fixedly connected to the surface of the second insulating protective plate 28. A lead screw 27 is rotatably connected between the second extension plate 25 and the third extension plate 26. A first extension plate 24 is threadedly connected to the surface of the lead screw 27. A lifting member 23 is fixedly connected to the end of the first extension plate 24. A first insulating protective plate 21 is provided above the lifting member 23, and the lifting member 23 and the first insulating protective plate 21 are connected by a rotating shaft. A ratchet 22 is fixedly connected to the surface of the lead screw 27. A ratchet structure 29 is provided at the lower end of the second extension plate 25, and the ratchet structure 29 is engaged with the ratchet 22.

[0042] Specifically, after connection, when protection is needed for the busbar assembly 4 and the connection point, the operator can manually rotate the screw 27 to control the lifting and lowering of the first extension plate 24, which in turn drives the lifting component 23 to lift and lower. During the lifting and lowering of the lifting component 23, the first insulating protective plate 21 also lifts and lowers. When the lifting component 23 moves to the top of the second insulating protective plate 28, the pivot is positioned above the second insulating protective plate 28. At this point, the first insulating protective plate 21 will deflect under gravity, thus shielding the busbar assembly 4 and the connection point above, thereby performing the protection operation. Afterwards, in order to... The lifting component 23 can be stably positioned in this location. Therefore, the ratchet structure 29 can engage the ratchet 22. Since the ratchet 22 is fixedly mounted on the surface of the lead screw 27, the lead screw 27 cannot rotate in the reverse direction at this time, thus preventing the lifting component 23 from descending. When it is necessary to remove the protection, simply release the ratchet structure 29 from engaging the ratchet 22. At this time, the lead screw 27 can be rotated in the reverse direction, and then the lifting component 23 can descend. When the lifting component 23 descends, the first insulating protective plate 21 will come into contact with the surface of the second insulating protective plate 28. At this time, under the contact of the second insulating protective plate 28, the first insulating protective plate 21 returns to its original position.

[0043] Furthermore, during use, a blocking part can be provided at the front end of the lifting component 23 to prevent the first insulating protective plate 21 from deflecting forward.

[0044] A method for assembling the internal busbar of a power distribution cabinet. S1. When connecting the bus terminal 45 to the terminal of the main circuit breaker 16, first stably install the main circuit breaker 16 and the busbar assembly 4 inside the cabinet 11, and then connect the first mounting bar 31 to the connecting bar 17 through the bolt group, so that the connecting assembly 3 is stably installed. S2. After the first mounting row 31 is stably set, apply a sufficient amount of electrical compound grease to the surface of the brush 53. Then, start the motor 61 to drive the second gear 62 to rotate, thereby driving the moving part 32 and the positioning part 33 to move to the left. During the movement, the brush 53 set at the left end of the moving part 32 contacts the terminal surface of the bus terminal 45 or the main circuit breaker 16, thereby applying the electrical compound grease attached to the surface of the brush 53 to the terminal surface of the bus terminal 45 or the main circuit breaker 16. S3. Continue to move the moving part 32. When the screw and nut move to the predetermined position, the first contact part 66 will contact the lifting part 64, so that the motor 61 can move upward. At this time, the second gear 62 will move upward, which will disengage it from the second rack 63 and mesh with the first rack 35. S4. Continue to start the motor 61, which drives the first rack 35 to move through the second gear 62, thereby causing the screw / nut to rotate. During the rotation, the screw / nut can be displaced in the direction of the screw / nut, thereby completing the subsequent connection operation. Example 2

[0045] Regarding the operation of the aforementioned rotating screw, the installation position of this device can be adjusted as follows: like Figures 11-13 As shown, a longitudinal plate is fixedly connected to the surface of the first mounting row 31. A positioning member 33 is slidably connected to the left side of the longitudinal plate. The positioning member 33 has a snap-fit ​​groove, and a screw is disposed inside the snap-fit ​​groove. The brush 53 is slidably connected to the left side of the positioning member 33. A vertical plate is disposed at the upper end of the positioning member 33, and a spring is disposed on the right side of the vertical plate. A triangular first snap-fit ​​member is disposed at the end of the spring, and multiple second snap-fit ​​members are disposed on the longitudinal plate, such as... Figure 13 As shown, during the connection, the screw can be moved by moving the positioning member 33. When the screw is inserted into the bus terminal 45 and the terminal of the main circuit breaker 16, the first and second locking members abut against each other, so that the positioning member 33 can be stably set, and thus the screw can be stably set.

[0046] Since the nut is located inside the first gear 36, and the first gear 36 is located on the push plate 37, the push plate 37 will abut against the nut during use. This allows the first gear 36 and the nut to move when the push plate 37 moves. In actual use, since a part of the screw will pass through the nut when the screw is connected to it, a through groove is provided on the surface of the push plate 37 to avoid the end of the screw from abutting against the surface of the push plate 37. The width of the through groove is slightly larger than the diameter of the screw and slightly smaller than the diameter of the nut.

[0047] During connection, as described above, by controlling the movement of the extension plate 34, the insertion rod 38 can be moved inside the gradient groove 39. Through the contact of the inner wall of the gradient groove 39, the extension plate 34 can be pushed to move. Since the extension plate 34 is slidably disposed on the surface of the push plate 37, the push plate 37 can be moved at this time. And since the first rack 35 meshes with the first gear 36, the nut can be rotated while moving closer to the screw.

[0048] Furthermore, in order to adapt to the above structure, the length of the second gear 62 needs to be extended, and in actual use, the slide plate 56 is set at the end of the push plate 37, while the working principle of the coating component 5 and the drive component 6 is the same as described above.

[0049] Furthermore, in practical use, in addition to using the first and second snap-fit ​​components to snap together to position the positioning component 33, an electrically controlled telescopic rod can also be set on the first mounting plate 31 or between the positioning component 33 and the push plate 37 to adjust the position of the positioning component 33, thereby allowing the screw to pass through the bus terminal 45 and the terminals of the main circuit breaker 16 to complete the subsequent connection work. Other structures or devices that can achieve the above functions are also acceptable.

[0050] In the above operation, the position of the screw is kept unchanged, thereby rotating the nut to achieve the connection. This connection method is a common connection method, and no torque adjustment is required after connection.

[0051] Both of the above connection methods eliminate the need for a torque wrench, and during the connection process, a quick connection of three sets of bolts can be achieved.

[0052] The electronic components and modules used in this invention can all be commonly used parts on the market that can achieve the specific functions described in this case, and the specific models and sizes can be selected and adjusted according to actual needs.

[0053] Of all the devices mentioned above, those requiring transmission effects can choose relatively stable transmission effects available on the market. Depending on the actual environment, protective sleeves or lubricants, protective agents, or other protective materials or shells can be added to the surface of some transmission parts to ensure that the transmission structure does not interfere with the movement of this practical transmission structure, thereby providing external protection for the transmission and preventing rust, deformation, etc.

[0054] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An insulation and protection connection structure for the internal busbar of a distribution cabinet, characterized in that: The device includes a distribution cabinet assembly (1), a connecting assembly (3), a busbar assembly (4), a coating assembly (5), and a drive assembly (6). The busbar assembly (4) is located inside the distribution cabinet assembly (1). The connecting assembly (3) is located inside the distribution cabinet assembly (1) and is located above the busbar assembly (4). The drive assembly (6) is located outside the connecting assembly (3). The connecting assembly (3) and the drive assembly (6) cooperate to connect the distribution cabinet assembly (1) and the busbar assembly (4). The coating assembly (5) is located on the side of the connecting assembly (3) and is used to coat the surface of the busbar assembly (4) with electrical compound grease before connecting the distribution cabinet assembly (1) and the busbar assembly (4).

2. The insulation protection connection structure for the internal busbar of a distribution cabinet according to claim 1, characterized in that: The distribution cabinet assembly (1) includes a cabinet body (11), the surface of which is connected to a cabinet door (12) via hinges. The surface of the cabinet door (12) is provided with multiple monitoring devices (14) and control buttons (15). The inner wall of the cabinet door (12) is fixedly connected with a wire clip (13). The inside of the cabinet body (11) is fixedly connected with a connecting bar (17). The inside of the cabinet body (11) is provided with a main circuit breaker (16).

3. The insulation protection connection structure for the internal busbar of a distribution cabinet according to claim 2, characterized in that: The busbar assembly (4) includes a second mounting bar (41), which is connected to the connecting bar (17) by bolts. An insulating insert (42) is fixedly connected to the upper end of the second mounting bar (41). Multiple busbars (43) are provided in front of the second mounting bar (41). Busbar terminals (45) are provided at the upper ends of the multiple busbars (43), and the multiple busbar terminals (45) penetrate and extend out of the surface of the insulating insert (42). Insulators (44) are provided between the multiple busbars (43).

4. The insulation protection connection structure for the internal busbar of a distribution cabinet according to claim 3, characterized in that: The connecting assembly (3) includes a first mounting row (31), which is connected to the connecting row (17) by a bolt group. A movable part (32) is slidably connected to the surface of the first mounting row (31). A gradient groove (39) is opened on the surface of the movable part (32). A positioning part (33) is fixedly connected to the surface of the movable part (32). A push plate (37) is slidably connected to the inner wall of the positioning part (33). A plurality of first gears (36) are rotatably connected to the surface of the push plate (37).

5. The insulation protection connection structure for the internal busbar of a distribution cabinet according to claim 4, characterized in that: The connecting assembly (3) further includes a first rack (35), an extension plate (34) is slidably connected to the surface of the push plate (37), the first rack (35) is fixedly connected to the lower end of the extension plate (34), and the first rack (35) meshes with a plurality of first gears (36). A moving groove is opened on the surface of the push plate (37), and an insertion rod (38) is rotatably connected to the surface of the extension plate (34), and the insertion rod (38) is slidably connected to the inside of the moving groove and set inside the gradient groove (39).

6. The insulation protection connection structure for the internal busbar of a distribution cabinet according to claim 5, characterized in that: The drive assembly (6) includes a motor (61), a displacement plate (65) is fixedly connected to the side end of the motor (61), the displacement plate (65) is slidably connected to the side end of the positioning member (33), a first abutment member (66) is fixedly connected to the lower end of the displacement plate (65), a second gear (62) is fixedly connected to the output end of the motor (61), a second rack (63) is fixedly connected to the surface of the first mounting row (31), and the second gear (62) meshes with the second rack (63).

7. The insulation protection connection structure for the internal busbar of a distribution cabinet according to claim 6, characterized in that: The drive assembly (6) further includes a lifting member (64), which is fixedly connected to the surface of the first mounting row (31). The inner wall of the lifting member (64) is slidably connected to a second abutment (67), and a plurality of springs (68) are provided between the inner wall of the lifting member (64) and the second abutment (67).

8. The insulation protection connection structure for the internal busbar of a distribution cabinet according to claim 7, characterized in that: The application assembly (5) includes a fixing plate (51), which is fixedly connected to the upper end of the insulating insert (42). A plurality of first adjusting members (52) are fixedly connected to the surface of the fixing plate (51). An application brush (53) is slidably connected to the side end of the moving member (32). A first magnet (54) is fixedly connected to the surface of the application brush (53). A sliding plate (56) is slidably connected to the side end of the positioning member (33). A second adjusting member (55) is fixedly connected to the surface of the sliding plate (56). A second magnet (57) is fixedly connected to the surface of the sliding plate (56).

9. The insulation protection connection structure for the internal busbar of a distribution cabinet according to claim 8, characterized in that: The cabinet (11) is equipped with a protective component (2) for insulating the busbar assembly (4). The protective component (2) includes a second insulating protective plate (28), which is fixedly connected to the surface of the insulator (44). A second extension plate (25) and a third extension plate (26) are fixedly connected to the surface of the second insulating protective plate (28). A screw rod (27) is rotatably connected between the second extension plate (25) and the third extension plate (26). A first extension plate (24) is threadedly connected to the surface of the screw rod (27). A lifting member (23) is fixedly connected to the end of the first extension plate (24). A first insulating protective plate (21) is provided above the lifting member (23), and the lifting member (23) and the first insulating protective plate (21) are connected by a rotating shaft. A ratchet (22) is fixedly connected to the surface of the screw rod (27). A ratchet structure (29) is provided at the lower end of the second extension plate (25), and the ratchet structure (29) is engaged with the ratchet (22).

10. A method for assembling busbars inside a distribution cabinet, based on the insulation and protection connection structure for busbars inside a distribution cabinet as described in claim 9, characterized in that: S1. When connecting the bus terminal (45) and the main circuit breaker (16) terminal, first stably set the main circuit breaker (16) and the bus assembly (4) inside the cabinet (11), then connect the first mounting block (31) to the connecting block (17) through the bolt group, so that the connecting assembly (3) is stably set. S2. After the first mounting row (31) is stably set, apply a sufficient amount of electrical compound grease to the surface of the brush (53). Then, start the motor (61) to drive the second gear (62) to rotate, thereby driving the moving part (32) and the positioning part (33) to move to the left. During the movement, the brush (53) set at the left end of the moving part (32) contacts the terminal surface of the bus terminal (45) or the main circuit breaker (16), thereby applying the electrical compound grease attached to the surface of the brush (53) to the terminal surface of the bus terminal (45) or the main circuit breaker (16). S3. Continue to move the moving part (32). When the screw and nut move to the predetermined position, the first contact part (66) will contact the lifting part (64), so that the motor (61) can move upward. At this time, the second gear (62) will move upward, which will disengage it from the second rack (63) and mesh with the first rack (35). S4. Continue to start the motor (61), drive the first rack (35) to move through the second gear (62), thereby causing the screw / nut to rotate. During the rotation, the screw / nut can be displaced in the direction of the nut / screw, thereby completing the subsequent connection operation.

Images