Bus conductor and cable junction box

Abstract

The utility model relates to the technical field of cable wiring, in particular to a bus conductor and a cable junction box, which comprise at least three phase sequence conductor plates which are vertically arranged at intervals, and each phase sequence conductor plate is provided with at least one cable wiring hole used for connecting a cable. And the cable wiring holes are respectively arranged on the different phase sequence conductor plates in a horizontal staggered manner. According to the utility model, various accessories of a traditional wiring structure are integrated to form the phase sequence conductor plates, the phase sequence conductor plates are vertically arranged at intervals so as to separate phase sequences and avoid mutual interference and influence, the overall arrangement is simple, and the material cost is saved; the number of bolts used for electrical connection is smaller, the burning risk is lower, the moving space of the connection cable is larger, and early-stage installation operation and later-stage inspection and maintenance work are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of cable wiring, in particular to a busbar conductor and a cable junction box. Background Art

[0002] A cable junction box is a device used to connect and distribute cables. It is usually applied in industrial or construction sites and can concentrate and effectively connect cables to different devices or systems. A cable junction box generally includes components for cable connection such as terminal blocks, protection devices, connectors, etc. Through the cable junction box, functions such as wiring between power equipment, power distribution, circuit monitoring and protection can be achieved.

[0003] For example, Chinese Patent Publication No. CN208723526U discloses a cable lower junction box for a lifting type wind power tubular busbar. The cable busbar is connected to the busbar through a busbar via a transfer row bolt, and the cable busbar is lifted by an insulating support. However, the cable junction box using this connection method has a large number of components, a large number of internal connection points, and a narrow space, resulting in a complex structure among each phase sequence. The difficulty of pre-installation operation and post-maintenance inspection is relatively high, and it is difficult to completely inspect its interior. Even if the inspection is in place, it is difficult to re-tighten. It is difficult to maintain comprehensively and effectively. Once a local connection point fails to be effectively tightened or hidden dangers are not checked and eliminated, there will be a risk of burning of the cable junction box, with a large burning risk and certain maintenance difficulties and potential safety hazards.

[0004] In view of the above deficiencies, we need to develop a busbar conductor and a cable junction box to meet the usage requirements of the majority of users. Summary of the Utility Model

[0005] In view of the problems existing in the existing cable junction box mentioned above, such as large installation difficulty, large maintenance and inspection difficulty, and large burning risk, the technical solution adopted by the utility model to solve its technical problems is as follows:

[0006] A busbar conductor includes at least three phase sequence conductor plates arranged at intervals vertically. The phase sequence conductor plates are provided with at least one cable wiring hole for connecting a cable, and the cable wiring holes are respectively arranged on different phase sequence conductor plates in a horizontally staggered manner.

[0007] Further, the phase sequence conductor plate includes a first connection part, a second connection part and a third connection part connected in sequence from top to bottom. The cable wiring hole is located in the first connection part. The second connection part extends in a direction away from the center of the busbar conductor. The first connection part and the third connection part extend in the vertical direction, and the second connection part extends in the horizontal direction.

[0008] Further, the phase sequence conductor plate includes a first conductor plate, a second conductor plate, a third conductor plate, and a fourth conductor plate. The second conductor plate and the third conductor plate are respectively disposed on both sides close to the center of the busbar conductor. The first conductor plate is spaced apart from the side of the second conductor plate away from the center of the busbar conductor, and the fourth conductor plate is spaced apart from the side of the third conductor plate away from the center of the busbar conductor.

[0009] Further, the horizontal position of the second connection portion B of the second conductor plate is higher than the horizontal position of the second connection portion A of the first conductor plate, and the horizontal position of the second connection portion C of the third conductor plate is higher than the horizontal position of the second connection portion D of the fourth conductor plate.

[0010] Further, the second connection portion A and the second connection portion D are at the same horizontal position, and the second connection portion B and the second connection portion C are at the same horizontal position.

[0011] Further, the extension length of the second connection portion B is less than the extension length of the second connection portion A, and the extension length of the second connection portion C is less than the extension length of the second connection portion D.

[0012] Further, the horizontal position of the cable connection hole D of the fourth conductor plate is higher than the horizontal position of the cable connection hole C of the third conductor plate. The horizontal position of the cable connection hole C of the third conductor plate is higher than the horizontal position of the cable connection hole B of the second conductor plate. The horizontal position of the cable connection hole B of the second conductor plate is higher than the horizontal position of the cable connection hole A of the first conductor plate.

[0013] Further, the first connection portion A of the first conductor plate, the first connection portion B of the second conductor plate, the first connection portion C of the third conductor plate, and the first connection portion D of the fourth conductor plate are respectively spaced at intervals of a distance M in sequence. The third connection portion A of the first conductor plate, the third connection portion B of the second conductor plate, the third connection portion C of the third conductor plate, and the third connection portion D of the fourth conductor plate are respectively spaced at intervals of a distance N in sequence, and the distance M is greater than the distance N.

[0014] Further, the outer surfaces of the second connection portion and the third connection portion are wrapped with a layer of motor film for insulation.

[0015] Further, a cable connection box includes a box body and the busbar conductor as described above. The phase sequence conductor plate is installed in the box body through an insulating phase separation component.

[0016] The beneficial effects of the present utility model are as follows:

[0017] 1. The utility model integrates a large number of accessories of the traditional wiring structure to form a phase sequence conductor plate. The phase sequence conductor plates are arranged vertically at intervals to separate each phase sequence and avoid mutual interference. The overall layout is simple, saving material costs. The utility model adopts horizontally staggered cable connection holes, uses fewer bolts for electrical connection, has a lower risk of burnout, and has a larger moving space for connecting cables, which is beneficial to the preliminary installation operation and subsequent inspection and maintenance work.

[0018] 2. The utility model defines the positions of the phase sequence conductor plates in terms of structure and spacing, further ensuring the moving space for connecting cables, facilitating the preliminary installation operation and subsequent inspection and maintenance work. The outer surfaces of the second connecting part and the third connecting part are insulated and isolated by a motor film for each phase sequence, further reducing the risk of burnout. The overall structure has less stress and better flexibility, which is beneficial to offset the sway of the tower barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional view of a busbar conductor of the utility model.

[0020] Figure 2 is a front view of a busbar conductor of the utility model.

[0021] Figure 3 is a side view of a busbar conductor of the utility model.

[0022] Figure 4 is an exploded three-dimensional view of a cable connection box of the utility model.

[0023] Figure 5 is an internal structure diagram of a cable connection box of the utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following will describe the embodiments of the utility model in detail with reference to the drawings.

[0025] As Figures 1 to 3 shown, a busbar conductor includes at least three phase sequence conductor plates 100 arranged vertically at intervals. The phase sequence conductor plates 100 are provided with at least one cable connection hole 2 for connecting a cable, and the cable connection holes 2 are arranged in a horizontally staggered manner on different phase sequence conductor plates 100.

[0026] Specifically, in some embodiments, the busbar conductor is a component for power transmission inside the cable junction box. The busbar conductor includes a plurality of phase sequence conductor plates 100 for connecting cables. The phase sequence conductor plates 100 are vertically spaced apart. Screws or bolts can be used to pass through the cable connection holes 2 to connect one end of the cable to the phase sequence conductor plate 100. A single phase sequence conductor plate 100 can connect multiple cables depending on the number of cable connection holes 2. The cable connection holes 2 can be arranged at two or more evenly spaced intervals to meet the requirements of power transmission. When multiple cable connection holes 2 are used, the cable connection holes 2 are arranged in a straight line horizontally and are provided on the side of the phase sequence conductor plate 100 close to the cable. As Figure 1 and Figure 2 shown, the ends of the plurality of phase sequence conductor plates 100 close to the cable are arranged in a trapezoidal shape from left to right or from right to left in terms of their respective heights, so that the cable connection holes 2 are arranged in a staggered manner on horizontal planes at different upper and lower heights, forming a trapezoidal structure with a stepped and staggered orderly arrangement, which is beneficial to the pre-installation operation and the later inspection and maintenance work.

[0027] Specifically, in some embodiments, the surface of the phase sequence conductor plate 100 can be provided with a nickel plating layer, a copper plating layer and a tin plating layer from the inside out. The nickel plating layer is used to provide good corrosion resistance and enhance the hardness of the metal. The copper plating layer is used to enhance the electrical conductivity and provide better welding performance. The tin plating layer is used to further improve the reliability and stability of the connection and enhance the corrosion resistance at the same time.

[0028] As Figures 1 to 3 shown, the phase sequence conductor plate 100 includes a first connection portion 3, a second connection portion 4 and a third connection portion 5 connected in sequence from top to bottom. The cable connection hole 2 is located in the first connection portion 3. The second connection portion 4 extends in a direction away from the center of the busbar conductor. The first connection portion 3 and the third connection portion 5 extend in the vertical direction. The second connection portion 4 extends in the horizontal direction.

[0029] Specifically, in some embodiments, the first connecting portion 3 is disposed on one side of the phase sequence conductor plate 100 for connecting the cable. The cable connection holes 2 are arranged in a straight line horizontally and are disposed on the side of the first connecting portion 3 close to the cable. Two or more cable connection holes 2 are horizontally and evenly spaced on the first connecting portion 3 to meet the requirements of power transmission. The third connecting portion 5 is disposed on the side of the phase sequence conductor plate 100 away from the cable connection holes 2 for installation and fixing the position. The third connecting portion 5 can be installed on an insulating component on the cable connection box to prevent the busbar conductor from conducting electricity to the outer shell of the cable connection box and avoid the risk of electric shock. The first connecting portion 3 and the third connecting portion 5 are arranged with a vertical offset. The first connecting portion 3 is spaced and offset toward the side of the third connecting portion 5 away from the center of the busbar conductor. The second connecting portion 4 is horizontally disposed between the first connecting portion 3 and the third connecting portion 5. The second connecting portion 4 horizontally extends from the end of the third connecting portion 5 close to the first connecting portion 3 toward the direction away from the center of the busbar conductor, so that when a plurality of phase sequence conductor plates 100 are arranged vertically, sufficient space can be respectively separated to facilitate the pre-installation of the cable and also facilitate the later inspection and maintenance work.

[0030] As Figure 1 shown, the phase sequence conductor plate 100 includes a first conductor plate 11, a second conductor plate 12, a third conductor plate 13, and a fourth conductor plate 14. The second conductor plate 12 and the third conductor plate 13 are respectively disposed on both sides close to the center of the busbar conductor. The first conductor plate 11 is spaced and disposed on the side of the second conductor plate 12 away from the center of the busbar conductor. The fourth conductor plate 14 is spaced and disposed on the side of the third conductor plate 13 away from the center of the busbar conductor.

[0031] Specifically, in some embodiments, the first conductor plate 11, the second conductor plate 12, the third conductor plate 13, and the fourth conductor plate 14 of the phase sequence conductor plate 100 can be respectively arranged according to the cable phase sequence to be connected. The first conductor plate 11, the second conductor plate 12, and the third conductor plate 13 can be respectively used to connect the three-phase cables (phase A, phase B, and phase C), and the fourth conductor plate 14 can be used to connect the neutral cable (N line). The second conductor plate 12 and the third conductor plate 13 are disposed at positions close to the center of the busbar conductor, and the first conductor plate 11 and the fourth conductor plate 14 are disposed at positions close to the outside of the busbar conductor. The overall structure is clearly separated, which is easy to install and maintain.

[0032] Specifically, in some embodiments, different surface coating colors can also be respectively adopted on the first conductor plate 11, the second conductor plate 12, the third conductor plate 13, and the fourth conductor plate 14 to accurately distinguish the connection positions of each phase sequence. Preferably, the first conductor plate 11 can adopt a yellow coating, the second conductor plate 12 can adopt a green coating, the third conductor plate 13 can adopt a red coating, and the fourth conductor plate 14 can adopt a blue or yellow-green alternating coating to further clarify the cable layout and phase sequence distinction.

[0033] As Figure 2 shown, the horizontal position of the second connection part B4b of the second conductor plate 12 is higher than the horizontal position of the second connection part A4a of the first conductor plate 11, and the horizontal position of the second connection part C4c of the third conductor plate 13 is higher than the horizontal position of the second connection part D4d of the fourth conductor plate 14.

[0034] Specifically, in some embodiments, the first conductor plate 11 includes a first connection part A3a, a second connection part A4a, and a third connection part A5a, and the cable connection hole A2a is arranged on the first connection part A3a; the second conductor plate 12 includes a first connection part B3b, a second connection part B4b, and a third connection part B5b, and the cable connection hole B2b is arranged on the first connection part B3b; the third conductor plate 13 includes a first connection part C3c, a second connection part C4c, and a third connection part C5c, and the cable connection hole C2c is arranged on the first connection part C3c; the fourth conductor plate 14 includes a first connection part D3d, a second connection part D4d, and a third connection part D5d, and the cable connection hole D2d is arranged on the first connection part D3d;

[0035] The horizontal position of the second connection part 4 is the horizontal height position of the second connection part 4 from the end of the third connection part 5. To better and compactly accommodate the first conductor plate 11, the second conductor plate 12, the third conductor plate 13, and the fourth conductor plate 14, the second connection parts 4 between them can be arranged in a vertically offset manner. Since the first conductor plate 11 and the second conductor plate 12 belong to the same side of the busbar conductor center far from the fourth conductor plate 14, and the second conductor plate 12 is closer to the center of the busbar conductor than the first conductor plate 11, the horizontal position of the second connection part B4b of the second conductor plate 12 needs to be higher than the horizontal position of the second connection part A4a of the first conductor plate 11 to have enough space to accommodate the third connection part A5a of the first conductor plate 11. Similarly, since the third conductor plate 13 and the fourth conductor plate 14 belong to the same side of the busbar conductor center far from the first conductor plate 11, and the third conductor plate 13 is closer to the center of the busbar conductor than the fourth conductor plate 14, the horizontal position of the second connection part C4c of the third conductor plate 13 needs to be higher than the horizontal position of the second connection part D4d of the fourth conductor plate 14 to have enough space to accommodate the third connection part D5d of the fourth conductor plate 14. The overall structure is clearly spaced, easy to install and maintain, compact in distribution position, and requires a smaller volume.

[0036] As Figure 2 shown, the second connection part A4a and the second connection part D4d are at the same horizontal position, and the second connection part B4b and the second connection part C4c are at the same horizontal position.

[0037] Specifically, in some embodiments, to further standardize the arrangement of the first conductor plate 11, the second conductor plate 12, the third conductor plate 13, and the fourth conductor plate 14, such that the overall structure appears horizontal, vertical, simple, and clear, the horizontal position of the second connecting portion 4 is the horizontal height position of the second connecting portion 4 from the end of the third connecting portion 5. The second connecting portion A4a of the first conductor plate 11 and the second connecting portion D4d of the fourth conductor plate 14 are at the same horizontal position, that is, as Figure 2 shown, the two phase sequence conductor plates 100 on the outer side of the busbar conductor away from the center are at the same horizontal plane at their respective second connecting portions 4. The second connecting portion B4b and the second connecting portion C4c are at the same horizontal position, that is, as Figure 2 shown, the two phase sequence conductor plates 100 on the inner side of the busbar conductor close to the center are at the same horizontal plane at their respective second connecting portions 4. The orderly arrangement avoids the difficulty of installation and maintenance caused by messy layout and reduces the identification difficulty of the connection positions of each phase sequence.

[0038] As Figure 2 shown, the extension length of the second connecting portion B4b is less than the extension length of the second connecting portion A4a, and the extension length of the second connecting portion C4c is less than the extension length of the second connecting portion D4d.

[0039] Specifically, in some embodiments, to further separate the first connecting portions 3 of each phase sequence conductor plate 100 and ensure a reasonable distribution between the first connecting portions 3 of each phase sequence conductor plate 100, the method of adjusting the extension length of the second connecting portion 4 is adopted to control the spacing distance between the first connecting portions 3 of each phase sequence conductor plate 100. The extension length of the second connecting portion 4 is the extension connection length of the second connecting portion 4 from the end of the third connecting portion 5 close to the first connecting portion 3 towards the end of the first connecting portion 3 close to the third connecting portion 5. Since the first conductor plate 11 and the second conductor plate 12 belong to the same side of the busbar conductor center away from the fourth conductor plate 14, and the second conductor plate 12 is closer to the center of the busbar conductor than the first conductor plate 11, the extension length of the second connecting portion B4b is less than the extension length of the second connecting portion A4a, such that there is a sufficient reasonable spacing between the first connecting portion A3a and the first connecting portion B3b. Similarly, since the third conductor plate 13 and the fourth conductor plate 14 belong to the same side of the busbar conductor center away from the first conductor plate 11, and the third conductor plate 13 is closer to the center of the busbar conductor than the fourth conductor plate 14, the extension length of the second connecting portion C4c is less than the extension length of the second connecting portion D4d, such that there is a sufficient reasonable spacing between the first connecting portion C3c and the first connecting portion D3d to ensure a reasonable distribution between the first connecting portions 3 of each phase sequence conductor plate 100.

[0040] As Figure 2 and Figure 3As shown, the horizontal position of the cable connection hole D2d of the fourth conductor plate 14 is higher than that of the cable connection hole C2c of the third conductor plate 13. The horizontal position of the cable connection hole C2c of the third conductor plate 13 is higher than that of the cable connection hole B2b of the second conductor plate 12. The horizontal position of the cable connection hole B2b of the second conductor plate 12 is higher than that of the cable connection hole A2a of the first conductor plate 11.

[0041] Specifically, in some embodiments, in order to further achieve clear distinction and neat arrangement, the cable connection holes 2 are arranged horizontally in a straight line and are provided on the side of the phase sequence conductor plate 100 close to the cable. The ends of multiple phase sequence conductor plates 100 close to the cable are arranged in a trapezoidal shape from left to right or from right to left in terms of their respective heights, so that the cable connection holes 2 are arranged in a staggered manner on horizontal planes at different upper and lower heights, forming a trapezoidal structure with gradually staggered and orderly arrangement. More specifically, the cable connection hole D2d, the cable connection hole C2c, the cable connection hole B2b, and the cable connection hole A2a are sequentially arranged at intervals in the order of separation from left to right and from top to bottom on the fourth conductor plate 14, the third conductor plate 13, the second conductor plate 12, and the first conductor plate 11 respectively. The overall structure is clearly spaced and well-proportioned, making it easy to distinguish the connection positions between different phase sequences and facilitating pre-installation and post-maintenance.

[0042] Specifically, in some embodiments, the cable connection hole D2d, the cable connection hole C2c, the cable connection hole B2b, and the cable connection hole A2a are sequentially arranged at intervals in the order of separation from right to left and from top to bottom on the fourth conductor plate 14, the third conductor plate 13, the second conductor plate 12, and the first conductor plate 11 respectively. The overall structure is clearly spaced and well-proportioned, making it easy to distinguish the connection positions between different phase sequences and facilitating pre-installation and post-maintenance.

[0043] As Figure 2 shown, the first connection part A3a of the first conductor plate 11, the first connection part B3b of the second conductor plate 12, the first connection part C3c of the third conductor plate 13, and the first connection part D3d of the fourth conductor plate 14 are sequentially spaced at intervals according to the interval distance M6. The third connection part A5a of the first conductor plate 11, the third connection part B5b of the second conductor plate 12, the third connection part C5c of the third conductor plate 13, and the third connection part D5d of the fourth conductor plate 14 are sequentially spaced at intervals according to the interval distance N7, and the interval distance M6 is greater than the interval distance N7.

[0044] Specifically, in some embodiments, the spacing distance M6 is respectively the separation distance dimension M between the first connecting portion A3a and the first connecting portion B3b, between the first connecting portion B3b and the first connecting portion C3c, and between the first connecting portion C3c and the first connecting portion D3d. And the spacing distance N7 is respectively the separation distance dimension N between the third connecting portion A5a and the third connecting portion B5b, between the third connecting portion B5b and the third connecting portion C5c, and between the third connecting portion C5c and the third connecting portion D5d. To further separate the first connecting portions 3 of each phase-sequence conductor plate 100 and ensure a reasonable distribution between the first connecting portions 3 of each phase-sequence conductor plate 100, the method of adjusting the spacing distance M6 is adopted to control the spacing distance between the first connecting portions 3 of each phase-sequence conductor plate 100. Since the third connecting portion 5 needs to be installed on the cable junction box, and due to the special separating and installing tool components, the spacing distance between the third connecting portions 5 is relatively stable, and its spacing distance needs to be compact and not too wide. However, since the first connecting portion 3 needs to install the cable, and fasteners such as screws or bolts are also needed between the first connecting portion 3 and the cable, its spacing distance needs to be relatively loose to facilitate installation, maintenance and replacement. Therefore, the design with the spacing distance M6 greater than the spacing distance N7 is adopted, so that the spacing between the first connecting portions 3 is greater than the spacing between the third connecting portions 5, which can simultaneously meet the effects of compact installation and convenient operation, and is convenient for users to use.

[0045] As Figure 4 and Figure 5 shown, the outer surfaces of the second connecting portion 4 and the third connecting portion 5 are wrapped with a layer of motor film 83 for insulation.

[0046] Optionally, the motor film 83 can be made of one of polytetrafluoroethylene (PTFE), polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polyester (PET), or polyimide (PI) as the insulating material. Users can choose one according to the use environment and conditions to adapt to different working requirements and natures. Preferably, the motor film 83 can be made of polyester (PET). Polyester (PET) has good mechanical strength and stiffness, good wear resistance, is not easily damaged, has stable chemical corrosion resistance, is not easily affected and eroded by the environment, and is easy to process and form, and is suitable for wrapping the structure of the phase-sequence conductor plate 100.

[0047] Specifically, in some embodiments, to further avoid contact short circuits, reduce the risk of burnout, and protect the personnel during installation and maintenance, the motor film 83 is a protective sheath layer made of an insulating material for isolating external insulation contacts. The motor film 83 is sleeved on the outer surfaces of the second connection portion 4 and the third connection portion 5 of the phase sequence conductor plate 100, preventing adjacent phase sequence conductor plates 100 from being pressed close to each other and causing potential burnout hazards, and can provide insulation protection for phase separation. The wrapping thickness of the motor film 83 is relatively thin, having little impact on the overall occupied space and facilitating user operation.

[0048] As Figure 4 and Figure 5 shown, the cable junction box includes a box body 81 and the busbar conductor described above. The phase sequence conductor plate 100 is installed in the box body 81 through an insulation phase separation component 82.

[0049] Specifically, in some embodiments, the box body 81 is the protective housing of the cable junction box, protecting the interior of the cable junction box from external environmental damage and influence. The insulation phase separation component 82 is used to separate the phase sequence conductor plates 100, and is arranged between the busbar conductor and the box body 81 to prevent the conductor from conducting electricity to the box body 81 and avoid electric shock hazards. A plurality of cable installation holes for cables to pass through are provided at the top of the box body 81. The box body 81 is provided with a detachable box door. After opening the box door, the user can enter the interior of the box body 81 to install the busbar conductor. The numerous accessories of the traditional wiring structure are integrated to form the phase sequence conductor plate 100. The phase sequence conductor plates 100 are arranged vertically at intervals. The phase sequence conductor plates 100 are installed in the box body 81 through the insulation phase separation component 82 in the specific arrangement manner described in the above embodiments to separate each phase sequence and avoid mutual interference. The overall layout is simple, saving material costs. The cable junction box of the present invention adopts horizontally staggered cable connection holes, uses fewer bolts for electrical connection, has a lower risk of burnout, and has a larger movable space for connecting cables, which is beneficial to the pre-installation operation and post-inspection and maintenance work.

[0050] As Figures 1 to 5 shown, the specific implementation manner of the present invention is as follows:

[0051] When arranging, the first conductor plate 11, the second conductor plate 12, the third conductor plate 13 and the fourth conductor plate 14 are arranged vertically and spaced apart from right to left in sequence. The first connection part A3a, the first connection part B3b, the first connection part C3c and the first connection part D3d all face one side of the cable. The cable connection holes D2d, C2c, B2b and A2a are arranged at intervals in sequence according to the separation order from left to right and from top to bottom on the first connection part D3d, the first connection part C3c, the first connection part B3b and the first connection part A3a respectively. The extending directions of the second connection part A4a and the second connection part B4b face the right side, and the extending directions of the second connection part C4c and the second connection part D4d face the left side. The second connection part B4b and the second connection part C4c are at the same horizontal position and are both higher than the second connection part A4a and the second connection part D4d. The second connection part A4a and the second connection part D4d are at the same horizontal position. The extending length of the second connection part B4b is greater than that of the second connection part A4a, and the extending length of the second connection part C4c is greater than that of the second connection part D4d, so that the spacing distance M6 is greater than the spacing distance N7, meeting the space required for convenient installation and maintenance. The overall structure is clearly spaced and well-proportioned, making it easy to distinguish the connection positions between different phase sequences and facilitating the initial installation and subsequent maintenance.

[0052] When in use, the motor film 83 is sleeved on the positions of the second connection part A4a and the third connection part A5a, the second connection part B4b and the third connection part B5b, the second connection part C4c and the third connection part C5c, and the second connection part D4d and the third connection part D5d respectively. The cable is passed through the box body 81 and installed on the cable connection hole 2 by fasteners such as screws or bolts. When installing different phase sequences, the cables of phase A, phase B and phase C are detachably connected to the first conductor plate 11, the second conductor plate 12 and the third conductor plate 13 respectively. The neutral line N is installed on the fourth conductor plate 14. The third connection part A5a, the third connection part B5b, the third connection part C5c and the third connection part D5d are installed on the insulating phase separation component 82 at intervals, and then the insulating phase separation component 82 is installed on the box body 81, and the cable connection and the installation of the busbar conductor can be completed.

[0053] The above only further illustrates the technical content of the present invention with examples to make it easier for readers to understand, but it does not mean that the implementation mode of the present invention is limited to this. Any technical extension or re-creation based on the present invention is protected by the present invention. The protection scope of the present invention is subject to the claims.

Claims

1. A busbar conductor, characterized in that: The invention comprises at least three phase-sequence conductor plates (100) arranged at intervals in a vertical direction, wherein the phase-sequence conductor plates (100) are provided with at least one cable connection hole (2) for connecting a cable, and the cable connection holes (2) are arranged on different phase-sequence conductor plates (100) in a horizontally staggered manner.

2. A busbar conductor according to claim 1, characterized in that: The phase sequence conductor plate (100) comprises a first connection portion (3), a second connection portion (4) and a third connection portion (5) which are connected in sequence from top to bottom, the cable connection hole (2) is located at the first connection portion (3), the second connection portion (4) extends in a direction away from the center of the busbar conductor, the first connection portion (3) and the third connection portion (5) extend in a vertical direction, and the second connection portion (4) extends in a transverse direction.

3. A busbar conductor according to claim 2, characterized in that: The phase sequence conductor plate (100) comprises a first conductor plate (11), a second conductor plate (12), a third conductor plate (13) and a fourth conductor plate (14); the second conductor plate (12) and the third conductor plate (13) are respectively arranged on two sides close to the center of the busbar conductor; the first conductor plate (11) is arranged at intervals on a side of the second conductor plate (12) away from the center of the busbar conductor; and the fourth conductor plate (14) is arranged at intervals on a side of the third conductor plate (13) away from the center of the busbar conductor.

4. A busbar conductor according to claim 3, characterized in that: The horizontal position of the second connection portion B (4b) of the second conductor plate (12) is higher than the horizontal position of the second connection portion A (4a) of the first conductor plate (11), and the horizontal position of the second connection portion C (4c) of the third conductor plate (13) is higher than the horizontal position of the second connection portion D (4d) of the fourth conductor plate (14).

5. A busbar conductor according to claim 4, characterized in that: The second connection portion A (4a) and the second connection portion D (4d) are at the same horizontal position, and the second connection portion B (4b) and the second connection portion C (4c) are at the same horizontal position.

6. A busbar conductor according to claim 4, characterized in that: The extension length of the second connection portion B (4b) is shorter than the extension length of the second connection portion A (4a), and the extension length of the second connection portion C (4c) is shorter than the extension length of the second connection portion D (4d).

7. A busbar conductor according to claim 3, characterized in that: The horizontal position of the cable connection hole D (2d) of the fourth conductor plate (14) is higher than the horizontal position of the cable connection hole C (2c) of the third conductor plate (13), the horizontal position of the cable connection hole C (2c) of the third conductor plate (13) is higher than the horizontal position of the cable connection hole B (2b) of the second conductor plate (12), and the horizontal position of the cable connection hole B (2b) of the second conductor plate (12) is higher than the horizontal position of the cable connection hole A (2a) of the first conductor plate (11).

8. A busbar conductor according to claim 4, characterized in that: The first connection portion A (3a) of the first conductor plate (11), the first connection portion B (3b) of the second conductor plate (12), the first connection portion C (3c) of the third conductor plate (13) and the first connection portion D (3d) of the fourth conductor plate (14) are spaced in sequence at a spacing distance M (6), and the third connection portion A (5a) of the first conductor plate (11), the third connection portion B (5b) of the second conductor plate (12), the third connection portion C (5c) of the third conductor plate (13) and the third connection portion D (5d) of the fourth conductor plate (14) are spaced in sequence at a spacing distance N (7), and the spacing distance M (6) is greater than the spacing distance N (7).

9. A busbar conductor according to claim 2, characterized in that: The outer surfaces of the second connecting portion (4) and the third connecting portion (5) are wrapped with a layer of motor film (83) for insulation.

10. Cable junction box, characterized in that: It comprises a box (81) and a busbar conductor according to any one of claims 1 to 9, wherein the phase sequence conductor plate (100) is installed on the box (81) via an insulating phase isolation component (82).

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