Conductive bar assembly method and assembly elbow

Abstract

The present invention discloses a conductive bar assembly method and an assembled elbow. The method comprises: wrapping the extended area of ​​the conductive bar with a first insulating film; stacking the conductive bars, and covering the corner area of ​​the conductive bar with a second insulating film along a first direction when stacking, and making the boundary of the second insulating film exceed the boundary of the corner area of ​​the conductive bar along a second direction; assembling the stacked conductive bars in the bus duct elbow. The elbow comprises: two shell components and an elbow component, with each side of the elbow component being mounted on a shell component, the shell component having a first cavity for assembling the extended area of ​​the stacked conductive bars, and the elbow component having a second cavity for assembling the corner area of ​​the stacked conductive bars; a clearance is provided in the second cavity, and the clearance is used to accommodate the portion of the second insulating film that exceeds the corner area of ​​the conductive bar. The assembly error is small and the assembly precision is high.

Description

Technical Field

[0001] The present invention belongs to the technical field of conductive bar assembly, and in particular relates to a conductive bar assembly method and an assembly elbow. Background Art

[0002] Busbar ducts, as transmission facilities for high-current power lines, are widely used in electrical equipment and power systems in civil buildings, factories, and other areas. Because busbar layout generally depends on the building structure and existing bridge lines, they often have bends. To achieve this current flow in power lines, elbows are typically used to assemble angled copper busbars. The quality of the assembly between the elbows and the angled copper busbars is crucial for ensuring the desired current flow during busbar construction.

[0003] To ensure copper busbars meet electrical requirements and insulation performance, they currently require insulating tape to be wrapped around their corners. However, manually wrapping the tape around the copper busbars makes it difficult to control the thickness at the corners. Furthermore, elbows made using welding processes have significant dimensional deviations, often resulting in the copper busbars being thicker than expected after wrapping, leading to assembly errors and making these busbars difficult to assemble. Summary of the Invention

[0004] The purpose of the present invention is to provide a conductive bar assembly method and an assembly elbow to solve the problem that the thickness of the copper bar at the corner is difficult to control during assembly and there are assembly errors.

[0005] The technical solution is as follows:

[0006] A first aspect of the present invention provides a conductive bar assembly method, wherein the conductive bar includes a corner area and an extension area, and the assembly steps include:

[0007] Wrapping the extended area of ​​the conductive bar with a first insulating film;

[0008] Stacking the conductive bars, wherein a second insulating film is used to cover the corner regions of the conductive bars along a first direction, and a boundary of the second insulating film is extended beyond the boundary of the corner regions of the conductive bars along a second direction;

[0009] Assemble the stacked conductive bars into the bus duct elbow.

[0010] In one embodiment, the distance that the boundary of the second insulating film exceeds the boundary of the corner region of the conductive row is at least 20 mm.

[0011] In one embodiment, the first direction is parallel to the surface of the conductive row and points from one extension area to another extension area; when the conductive rows are stacked vertically, the second direction intersects the first direction horizontally; when the conductive rows are stacked horizontally, the second direction intersects the first direction perpendicularly.

[0012] In one embodiment, when the conductive bars are stacked vertically, the second insulating film is stacked on the surface of the corner area of ​​the conductive bars; when the conductive bars are stacked horizontally, the second insulating film is bent and attached to the surface of the corner area of ​​the conductive bars.

[0013] A second aspect of the present invention provides an assembled elbow, comprising:

[0014] Two housing components and an elbow component, with both sides of the elbow component mounted on one housing component each. The housing component has a first cavity for assembling the extended area of ​​the conductive bar, and the elbow component has a second cavity for assembling the corner area of ​​the conductive bar;

[0015] A clearance gap is provided in the second cavity, and the clearance gap is used to accommodate a portion of the second insulating film that extends beyond the corner area of ​​the conductive row.

[0016] In one embodiment, for assembling horizontally stacked conductive bars, the elbow assembly includes two elbow connectors and a first baffle and a second baffle arranged opposite to each other, the first baffle and the second baffle are spaced apart, the first end of the first baffle and the first end of the second baffle are both fixed to one of the elbow connectors, the second end of the first baffle and the second end of the second baffle are both fixed to the other of the elbow connectors, and the two elbow connectors, the first baffle and the second baffle enclose a second cavity.

[0017] In one embodiment, the elbow connector is provided with a through opening, through which the first baffle and the second baffle are inserted into the elbow connector, and the elbow assembly further comprises two sealing plates, each of which is covered on an elbow connector, and the sealing plate covers are provided at the ends of the first baffle and the ends of the second baffle, the two sealing plates, the first baffle and the second baffle together form the second cavity, and the first baffle and the second baffle located in the elbow connector form the clearance gap.

[0018] In one embodiment, for assembling vertically stacked conductive bars, the elbow assembly includes a first connector provided on the outside of the elbow, a second connector provided on the inside of the elbow, and two sealing assemblies, the first connector and the second connector are spaced apart along a second direction, the two sealing assemblies are spaced apart along a direction intersecting the second direction, the two ends of the sealing assembly are respectively fixed to the first connector and the second connector, and the first connector, the second connector and the two sealing assemblies enclose to form the second cavity.

[0019] In one embodiment, a first gap is provided between the first connecting member and an outer corner of the conductive bar, a second gap is provided between the second connecting member and an inner corner of the conductive bar, and at least one of the first gap and the second gap forms the clearance gap.

[0020] In one embodiment, the housing assembly is a two-piece bus duct, including a cover plate and a side plate mounted on the cover plate, and the cover plate and the side plate enclose to form the first cavity.

[0021] The technical solution provided by the present invention has the following advantages and effects:

[0022] The conductive bus assembly method of the present invention uses a second insulating film to cover the corner area of ​​the conductive bus, eliminating the need to wrap insulating tape around the corner area of ​​the conductive bus. Moreover, the thickness of the second insulating film is determined, which can avoid the situation where the thickness at the corner is uncontrollable. The conductive bus is simple and convenient to assemble, and the boundary of the second insulating film is extended beyond the boundary of the corner area of ​​the conductive bus to meet the electrical clearance and creepage distance, resulting in high assembly quality.

[0023] The assembly-type elbow of the present invention is assembled with the extension area of ​​the stacked conductive bars through the shell component, and is assembled with the corner area of ​​the stacked conductive bars through the elbow component. With the assembly-type structure, the elbow does not need to be welded, thus avoiding dimensional deviation caused by welding and achieving high assembly precision. Moreover, by providing a clearance gap in the second cavity, the portion of the second insulating film that exceeds the corner area of ​​the conductive bars can be accommodated, and the elbow is suitable for assembly with the corner area of ​​the conductive bars covered by the second insulating film. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the first type of conductive bar;

[0025] Figure 2 This is the effect diagram of vertical stacking of conductive bars;

[0026] Figure 3 Schematic diagram of the second conductive bar;

[0027] Figure 4 This is the effect diagram of the conductive bars stacked horizontally;

[0028] Figure 5 This is the effect diagram of the conductive bars being stacked vertically after using the second insulating film;

[0029] Figure 6 This is the effect diagram of horizontal stacking of conductive bars after using the second insulating film;

[0030] Figure 7 Schematic diagram of creepage distance and electrical clearance;

[0031] Figure 8is a three-dimensional diagram of the vertical elbow of this embodiment;

[0032] Figure 9 is a perspective view of a housing assembly in a vertical elbow;

[0033] Figure 10 is a perspective view of a cover plate in a vertical elbow;

[0034] Figure 11 is a perspective view of the side plate in the vertical elbow;

[0035] Figure 12 is a perspective view of an elbow assembly in a vertical elbow;

[0036] Figure 13 is a perspective view of a first connecting member in a vertical elbow;

[0037] Figure 14 is a perspective view of the second connecting member in the vertical elbow;

[0038] Figure 15 This is a top view of the vertical elbow after assembly without the sealing component;

[0039] Figure 16 A perspective view of the vertical elbow after assembly with the upper sealing component removed;

[0040] Figure 17 for Figure 16 Enlarged view of point A in the middle;

[0041] Figure 18 for Figure 16 Enlarged view of point B in the middle;

[0042] Figure 19 is a perspective view of a sealing assembly in a vertical elbow;

[0043] Figure 20 is a three-dimensional diagram of the horizontal elbow of this embodiment;

[0044] Figure 21 is a perspective view of a housing assembly in a horizontal elbow;

[0045] Figure 22 is a perspective view of a cover plate in a horizontal elbow;

[0046] Figure 23 is a perspective view of the side plate in the horizontal elbow;

[0047] Figure 24 is a perspective view of an elbow assembly in a horizontal elbow;

[0048] Figure 25 A perspective view of a horizontal elbow after removing one elbow connector;

[0049] Figure 26 is a three-dimensional diagram of an elbow connector in a horizontal elbow;

[0050] Figure 27 is a perspective view of the first baffle in the horizontal elbow;

[0051] Figure 28 is a perspective view of the second baffle in the horizontal elbow;

[0052] Figure 29 A top view of the assembled elbow assembly in the horizontal elbow;

[0053] Figure 30 It is a three-dimensional view of the side plate of another embodiment of the horizontal elbow.

[0054] Description of reference numerals:

[0055] 10. Conductive bar, 12. Extension area, 13. Corner area, 14. First insulating film, 15. Second insulating film,

[0056] 20. Housing assembly, 21. Beveled end, 22. Cover plate, 221. First plate, 222. Second plate, 223. Third plate, 224. First cut surface, 225. Second cut surface, 226. Rib, 23. Side plate, 231. Bottom plate, 232. Side wall, 24. First cavity,

[0057] 30. Elbow assembly, 31. First connecting member, 311. First column, 312. First plate, 313. First protrusion, 314. Groove, 32. Second connecting member, 321. Second column, 322. Second plate, 323. Second protrusion, 324. Groove, 33. Sealing assembly, 331. First end, 332. Second end, 333. Dovetail groove, 334. First surface, 335. Rib, 336. Protective plate, 337. Sealing plate, 34. Second cavity, 35. Fixing column, 36. Sharp corner, 37. First gap, 38. Second gap,

[0058] 40. Shell assembly, 41. Cover plate, 411. First plate, 412. Second plate, 413. Third plate, 414. Fixing hole, 415. Rib, 416. Drain hole, 42. Side plate, 421. Bottom plate, 422. Side wall, 423. Notch, 43. First cavity,

[0059] 50. Elbow assembly, 51. Elbow connector, 511. Through port, 512. First vertical plate, 513. Second vertical plate, 514. Fixed column, 515. Groove, 52. First baffle, 53. Second baffle, 531. First flat plate, 532. Second flat plate, 533. Third flat plate, 54. Second cavity, 55. Closing plate, 56. Mounting plate, 561. Step, 57. Waterproof rubber strip, 58. Clearance. DETAILED DESCRIPTION

[0060] To facilitate understanding of the present invention, specific embodiments of the present invention will be described in more detail below with reference to the accompanying drawings.

[0061] Unless otherwise specified or defined, the "first, second..." used in this article is only used to distinguish names and does not represent a specific quantity or order.

[0062] Unless stated otherwise or defined otherwise, the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0063] It should be noted that, in this document, “fixed to” or “connected to” may mean directly fixing or connecting to an element, or indirectly fixing or connecting to an element.

[0064] There are two main types of conductive bars with corners. Figure 1 This is the first type of conductive bar. This type of conductive bar needs to be stacked vertically during assembly. The effect after stacking multiple conductive bars is as follows: Figure 2 As shown; Figure 3 The second type of conductive bar needs to be stacked horizontally during assembly. The effect after stacking multiple conductive bars is as follows: Figure 4 Both conductive bars 10 include an extension region 12 and a corner region 13. Currently, during assembly, each conductive bar 10 must first be wrapped with insulating material, and then manually wrapped with insulating tape around the corner region 13 to meet electrical requirements. Multiple conductive bars 10 are then stacked together and assembled into the elbow.

[0065] In order to solve the problem that the thickness of manually wound insulating tape is difficult to control, resulting in assembly errors and difficulty in achieving high-precision assembly, the present invention provides a conductive bar assembly method, which uses a first insulating film 14 to wrap the extension area 12 of the conductive bar 10, and then stacks the conductive bars 10. When stacking, a second insulating film 15 is used to cover the corner area 13 of the conductive bar 10 along the first direction, and the boundary of the second insulating film 15 is made to exceed the boundary of the corner area 13 of the conductive bar 10 along the second direction to meet electrical requirements. Finally, the stacked conductive bars are assembled in the elbow. There is no need to manually wrap insulating tape, and the thickness of the second insulating film stacked between the two conductive bars and between the inner wall of the elbow and the conductive bar is precise, and the thickness of the corner area will not be uncontrollable, which can improve assembly accuracy.

[0066] The first insulating film 14 and the second insulating film 15 are made of an insulating material, in this embodiment, PET (Polyethylene Terephthalate), which has excellent electrical insulation, heat resistance, and mechanical strength. The thickness of the first insulating film 14 and the second insulating film 15 is 0.125-0.188 mm.

[0067] Specifically, the cross-sectional shape of the first insulating film 14 is square, matching the cross-sectional shape of the extension area 12 of the conductive bar 10. One side of the first insulating film 14 is open. The first insulating film 14 is put on the extension area 12 of the conductive bar 10, and then the first insulating film 14 is fixed by wrapping a circle of insulating tape to wrap the extension area 12 of the conductive bar 10. After the two extension areas 12 are wrapped, a gap is formed in the corner area 13, and the gap is covered with the second insulating film 15. The stacking method of the conductive bar 10 is different, and the covering method is also different. If Figure 2 When stacked vertically as shown, the rectangular second insulating film 15 is used to cover the gap. The conductive bars 10 are stacked as shown in FIG. Figure 5 As shown. The second insulating film 15 is stacked on the surface of the corner area 13 of the conductive bar 10, and the second insulating film 15 covers the corner area 13 of the conductive bar 10 along the first direction, wherein the first direction is parallel to the surface of the conductive bar 10 and points from one extension area 12 to another extension area 12, that is, the width direction of the second insulating film 15, that is, the width of the second insulating film 15 is wide enough to at least be adjacent to the first insulating film 14. In order to ensure the electrical clearance and creepage distance between the conductive bars and between the conductive bars and the casing, the boundary of the second insulating film 15 along the second direction needs to exceed the boundary of the corner area 13 of the conductive bar 10, wherein the second direction intersects horizontally with the first direction, that is, the length direction of the second insulating film 15. That is to say, the length of the second insulating film 15 is long enough to make the boundaries of the two longitudinal ends of the second insulating film 15 exceed the boundaries of the corner area 13 of the conductive bar 10. If the following is adopted Figure 4 As shown in the horizontal stacking, the rectangular second insulating film 15 is inverted to cover the gap, and the conductive rows are stacked as shown in the horizontal stacking. Figure 6As shown, the second insulating film 15 is bent and attached to the surface of the corner region 13 of the conductive bar 10. The second insulating film 15 covers the corner region 13 of the conductive bar 10 along a first direction. The first direction is parallel to the surface of the conductive bar 10 and points from one extension region 12 to the other, i.e., the length direction of the second insulating film 15. In other words, the second insulating film 15 is long enough to at least abut the first insulating film 14. To ensure electrical clearance and creepage distances between the conductive bars and between the conductive bars and the housing, the boundary of the second insulating film 15 along the second direction must extend beyond the boundary of the corner region 13 of the conductive bar 10. The second direction intersects perpendicularly with the first direction, i.e., the width direction of the second insulating film 15. In other words, the second insulating film 15 is high enough so that its two lateral boundaries extend beyond the boundary of the corner region 13 of the conductive bar 10.

[0068] In summary, the assembly process of this embodiment can be described as follows: First, a first insulating film 14 (such as polyester film) is wrapped along the length of the conductive bars 10 to near the corner region 13, leaving a gap at the intersection of the first insulating film 14. A second insulating film 15 (such as a film spacer) is then applied over the gap. The second insulating film 15 must extend beyond the gap by a certain distance to ensure electrical clearance and creepage distances between the conductive bars and between the bars and the housing. The stacked conductive bars are then placed within the elbow, with the gaps between the conductive bars and the portion of the film spacer extending beyond the conductive bars within the elbow cavity.

[0069] In order to ensure the creepage distance and electrical clearance of the conductive bar, the distance from the boundary of the second insulating film 15 to the boundary of the corner area 13 of the conductive bar 10 is at least 20 mm, and can be up to 40 mm. Figure 7 , where creepage distance is the shortest path between two conductive parts or between a conductive part and the device protection interface measured along the insulation surface, and electrical clearance refers to the shortest spatial distance between two conductive parts or between a conductive part and the device protection interface. Figure 7 The guaranteed creepage distance and electrical clearance are 40mm and 20mm respectively.

[0070] In response to the problem that welded elbows have large dimensional deviations, are prone to assembly errors, and are unsightly, the present invention provides an assembled elbow comprising: two shell components and an elbow component, with each side of the elbow component mounted on a shell component, the shell component having a first cavity, and the elbow component having a second cavity. When assembling the stacked conductive bars, the extended area of ​​the conductive bars is mounted in the first cavity, and the corner area of ​​the conductive bars is mounted in the second cavity, and then the assembly between the shell component and the elbow component is completed. Therefore, the assembly of the conductive bars is achieved by assembling the shell component and the elbow component, without the need for a welding process, which can improve the assembly accuracy, and the assembled bus duct elbow has an aesthetically pleasing appearance.

[0071] In order to adapt to the conductive bar assembly method of the present invention, a clearance gap is further provided in the second cavity, which is used to accommodate the portion of the second insulating film that extends beyond the corner area of ​​the conductive bar, so that the conductive bar stacked by using the second insulating film instead of the winding insulating tape can be smoothly assembled in the elbow.

[0072] This embodiment provides two types of bus duct elbows: a horizontal elbow for assembling horizontally stacked conductive bars; and a vertical elbow for assembling vertically stacked conductive bars.

[0073] Vertical elbow example:

[0074] Figure 8 The figure shows a three-dimensional view of the vertical elbow of this embodiment. The vertical elbow primarily comprises two housing components 20 and an elbow component 30. The housing components 20 are beveled at one end, forming a beveled end 21. The two sides of the elbow component 30 are riveted to the beveled end 21 of each housing component 20. Furthermore, the two housing components 20 are arranged orthogonally, and when assembled with the elbow component 30, they form an elbow. The housing components 20 are used to assemble the extension region 12 of the conductive bar 10, while the elbow component 30 is used to assemble the corner region 13 of the conductive bar 10. In some embodiments, the two housing components 20 may also be arranged to intersect at a certain angle.

[0075] like Figure 9 As shown, unlike the conventional four-piece bus duct structure, the housing assembly 20 is a two-piece bus duct, including a cover plate 22 and a side plate 23. Figure 10 As shown, the cover plate 22 is an H-shaped structure, including an integrally formed first plate 221, a second plate 222 and a third plate 223. The first plate 221 and the second plate 222 are arranged opposite to each other, and the third plate 223 is located between the first plate 221 and the second plate 222. The side plates 23 are mounted on the cover plate 22. The specific mounting method is not limited. The side plates 23 can be fixed to the cover plate 22 by fasteners such as rivets, or can be pressed into the cover plate 22 in a tight fit. Figure 11As shown, the side panel 23 is door frame-shaped and includes an integral bottom panel 231 and two side walls 232. The two side walls 232 are fixed to the first plate 221 or the second plate 222, respectively. Figure 9 As shown, after the side panel 23 is installed on the cover 22, a gap exists between the bottom plate 231 of the side panel 23 and the third plate 223 of the cover 22. This gap can be used to mount the extension area 12 of the conductive bar 10. That is, the cover 22 and the side panel 23 enclose a first cavity 24 for accommodating the extension area 12 of the conductive bar 10. This two-piece structure is simple, easy to manufacture, and facilitates easy assembly of the conductive bar. When the housing assembly 20 is beveled, one end of the cover 22 and the side panel 23 are also beveled accordingly. After the cover 22 is beveled, a first cut surface 224 located on the outside of the elbow and a second cut surface 225 located on the inside of the elbow are formed.

[0076] like Figure 12 As shown, the elbow assembly 30 includes a first connector 31, a second connector 32, and two sealing assemblies 33. The first connector 31 and the second connector 32 are spaced apart along the second direction. The first connector 31 is arranged on the outside of the elbow, and the second connector 32 is arranged on the inside of the elbow. The two sealing assemblies 33 are spaced apart along a direction perpendicular to the second direction. The two ends of the sealing assemblies 33 are respectively fixed to the first connector 31 and the second connector 32. The two connectors (31, 32) and the two sealing assemblies 33 enclose a second cavity 34 for accommodating the corner area 13 of the conductive bar 10. The use of the assembled elbow assembly 30 makes the corner area 13 of the conductive bar 10 simple and convenient to assemble, and there is no need to weld at the corner of the elbow, which has a beautiful appearance and higher assembly precision.

[0077] When fixing the elbow assembly 30 to the housing assembly 20, the two ends of the cover plate 22 are fixed to the first connecting member 31 and the second connecting member 32 respectively by riveting or screwing. Of course, the fixing method of the elbow assembly 30 to the housing assembly 20 is not limited, and methods other than the present embodiment can also be used for installation and fixing.

[0078] like Figure 13 As shown, the first connector 31 is a frame structure, including two first columns 311. A first plate 312 is connected between the two first columns 311. The first plate 312 can achieve a seal of the second cavity 34 outside the elbow. The first end 331 of the sealing assembly 33 is configured to match the two first columns 311, so that the first end 331 can be snap-fitted between the two first columns 311, thereby limiting the position of the sealing assembly 33.

[0079] like Figure 14As shown, the second connecting member 32 is also a frame structure, including two second columns 321, and a second plate 322 is connected between the two second columns 321. The second plate 322 can achieve the sealing of the second cavity 34 on the inner side of the elbow.

[0080] like Figure 15 As shown, the first plate 312 protrudes away from the elbow, forming a first gap 37 between the first plate 312 and the outer corner of the conductive bar 10. A second gap 38 exists between the second plate 312 and the inner corner of the conductive bar 10. The first gap 37 and the second gap 38 form a clearance gap, ensuring the creepage distance and electrical clearance of the conductive bar. To meet different electrical requirements, the width of the clearance gap along the second direction is at least 20 mm. For example, the shortest distance between the first plate 312 and the outer corner of the conductive bar 10 is at least 20 mm. In other words, the shortest distance between a point on the conductive bar 10 and a corresponding point on the first plate 312 in the second direction is preferably at least 20 mm.

[0081] By designing the first and second connectors 31, 32 as a frame structure, the sealing assembly 33 is easily mounted and fixed to the first and second connectors 31, 32, and the appearance of the first and second connectors 31, 32 after being assembled with the housing assembly 20 is enhanced. Specifically, the first and second plates 312, 322 are each provided with a fixing post 35, through which the sealing assembly 33 can be fixed to the first and second connectors 31, 32 using threaded fasteners. It should be noted that the sealing assembly 33 can also be fixed to the first and second plates 312, 322 using other methods.

[0082] Due to the need for fit between the second column 321 and the housing assembly 20, the second column 321 is beveled at one end facing the other second column 321, and the beveled surface of the second column 321 overlaps with the beveled surface of the bus duct 20 and forms a sharp angle 36, that is, on the side facing away from the side panel 23, the beveled surface of the second column 321 overlaps with the beveled surface of the cover plate 22, and on the side adjacent to the side panel 23, the beveled surface of the second column 321 overlaps with the beveled surfaces of the cover plate 22 and the side panel 23, forming a sharp angle 36. In order to facilitate the assembly of the sealing assembly 33 and the second connecting member 32 and to ensure a stable structure after assembly, two dovetail grooves 333 are provided at intervals on the second end 332 of the sealing assembly 33. One dovetail groove 333 cooperates with a sharp angle 36 to achieve the snap-fitting and position-limiting of the sealing assembly 33 on the two second columns 321 of the second connecting member 32.

[0083] In order to strengthen the firmness of the vertical elbow after assembly, refer to Figure 16-18A first protrusion 313 is provided at the connection between the first plate 312 and the first column 311, and a second protrusion 323 is provided at the connection between the second plate 322 and the second column 321. The specific shapes of the first and second protrusions 313 and 323 are not limited and may be elongated, triangular, cylindrical, etc. The first protrusion 313 extends toward the interior of the elbow and abuts against the first cut surface 224 of the cover 22 or the cut surface of the cover 22 and the side panel 23. The second protrusion 323 also extends toward the interior of the elbow and abuts against the second cut surface 225 of the cover 22 or the cut surface of the cover 22 and the side panel 23.

[0084] like Figure 19 As shown, this embodiment further includes a plurality of ribs 335 spaced apart on the first surface 334 of the sealing assembly 33. The ribs 335 are preferably arranged in the longitudinal direction of the sealing assembly 33, but may also be arranged in the transverse direction of the sealing assembly 33. The first surfaces 334 of the two sealing assemblies 33 are arranged facing each other and both face the second cavity 34. This arrangement makes the corner section 13 of the copper busbar 10 assembled in the second cavity 34 more stable.

[0085] To enhance waterproofing, grooves can be provided on the surface of the first connector 31 that mates with the cover plate 22, and grooves can also be provided on the surface of the second connector 32 that mates with the cover plate 22, with waterproof strips installed within the grooves. Specifically, in this embodiment, grooves are provided on the surfaces of the two first uprights 311 of the first connector 31 that mate with the cover plate 22, and grooves are provided on the surfaces of the two second uprights 321 of the second connector 32 that mate with the cover plate 22.

[0086] refer to Figure 19 To facilitate assembly of the sealing assembly 33 with the first connector 31 and the second connector 32, the sealing assembly 33 is a split-piece design, comprising two protective plates 336 and a sealing plate 337. A protective plate 336 is fixed to each end of the sealing plate 337, which is secured to either the first connector 31 or the second connector 32. This split-piece design allows the sealing plate 337 to be tailored to the width of the conductive bar, reducing the number of materials required and eliminating the need for subsequent processing, resulting in improved adaptability. When the sealing assembly 33 adopts this split-piece design, the ribs 335 can be positioned on one side of the sealing plate 337. To enhance waterproofing, a waterproof pad can be positioned between the protective plates 336 and the sealing plate 337.

[0087] In order to make the first connecting member 31, the second connecting member 32 and the cover plate 22 assembled more firmly, outward protrusions are provided on both sides of the first plate body 221 and the second plate body 222 of the cover plate 22, and these protrusions form ribs 226. The two ends of the first column 311 of the first connecting member 31 are recessed inward to form grooves 314, and the ribs 226 cooperate with the grooves 314; the two ends of the second column 321 of the second connecting member 32 are recessed inward to form grooves 324, and the ribs 226 also cooperate with the grooves 324; thereby making the assembly of the cover plate 22 and the elbow assembly 30 convenient and firm.

[0088] In summary, the vertical elbow of this embodiment forms a second cavity through the first and second connectors and two sealing assemblies, accommodating the corner area of ​​the conductive bar. The extended area of ​​the conductive bar is then assembled through a two-piece bus duct. Thus, the two bus ducts and one elbow assembly together complete the assembly of the conductive bar. The vertical elbow is assembled, eliminating the need for welding and the resulting assembly errors, while also providing an aesthetically pleasing appearance.

[0089] Horizontal elbow embodiment:

[0090] Figure 20 This is a three-dimensional view of the horizontal elbow of this embodiment. The horizontal elbow primarily comprises two housing components 40 and an elbow component 50. Each end of the elbow component 50 is riveted to a housing component 40, forming an L-shaped horizontal elbow. The housing components 40 are mounted in the extension area 12 of the conductive bar 10, while the elbow component 50 is mounted in the corner area 13 of the conductive bar 10.

[0091] like Figure 21 As shown, unlike the usual four-piece structure, the housing assembly 40 is a two-piece structure, including a cover plate 41 and a side plate 42. Figure 22 As shown, the cover plate 41 is an H-shaped structure, including an integrally formed first plate 411, a second plate 412, and a third plate 413. The first plate 411 and the second plate 412 are arranged opposite to each other, and the third plate 413 is located between the first plate 411 and the second plate 412. The side plates 42 are mounted on the cover plate 41. The specific mounting method is not limited. The side plates 42 can be fixed to the cover plate 41 by fasteners such as rivets, or can be pressed into the cover plate 41 in a tightly fitting manner. Figure 23As shown, the side panel 42 is doorframe-shaped, comprising an integral bottom panel 421 and two sidewalls 422. The two sidewalls 422 are fixed to the first plate 411 or the second plate 412, respectively. After the side panel 42 is mounted on the cover 41, a gap exists between the bottom panel 421 of the side panel 42 and the third plate 413 of the cover 41. This gap can be used to accommodate the extension section 12 of the conductive bar 10. Specifically, the cover 41 and the side panel 42 enclose a first cavity 43 for accommodating the extension section 12 of the conductive bar 10. This two-piece structure is simple, easy to manufacture, and simplifies and facilitates the assembly of the conductive bar.

[0092] like Figure 24 As shown, the elbow assembly 50 includes two elbow connectors 51 arranged opposite each other, and a first baffle 52 and a second baffle 53. The first baffle 52 and the second baffle 53 are located between the two elbow connectors 51, and the second baffle 53 is located on the inner side of the elbow assembly 50 relative to the first baffle 52. The first baffle 52 and the second baffle 53 are spaced apart. One elbow connector 51 is fixedly connected to the first plate 411 of the cover plate 41, and the other elbow connector 51 is fixedly connected to the second plate 412 of the cover plate 41, thereby achieving a fixed connection between the cover plate 41 and the elbow connector 51. The first end of the first baffle 52 and the first end of the second baffle 53 are mounted on one elbow connector 51, and the second end of the first baffle 52 and the second end of the second baffle 53 are mounted on the other elbow connector 51, thereby achieving a fixed connection between the first baffle 52 and the second baffle 53. The two elbow connectors 51 and the first and second baffles 52 and 53 enclose a second cavity 54, which can accommodate the corner region 13 of the conductive bar 10. In this embodiment, the cross-sections of the first and second baffles 52 and 53 are at least partially L-shaped, so that the first and second baffles 52 and 53 can fit in the corner region 13 of the conductive bar 10. It should be noted that the angle of the first and second baffles 52 and 53 is not limited to this angle. For example, when the angle of the conductive bar 10 is obtuse, the angle of the first and second baffles 52 and 53 can be adjusted accordingly.

[0093] In some embodiments, as Figure 25 and Figure 26 As shown, in this embodiment, the elbow connector 51 is provided with openings 511. Through these openings 511, the ends of the first baffle 52 and the second baffle 53 are inserted into the elbow connector 51. In other words, the dimensions of the first baffle 52 and the second baffle 53 in the Z direction are greater than the dimension of the conductive bar 10 in the Z direction. The ends of the first baffle 52 and the second baffle 53 extend to the same length within the elbow connector 51. The first baffle 52 and the second baffle 53 within the elbow connector 51 form a clearance gap, which is used to accommodate the portion of the second insulating film located within the elbow connector 51.

[0094] To meet different electrical requirements, the extension length is preferably at least 20 mm. To seal the gap between the ends of the first baffle 52 and the second baffle 53, two sealing plates 55 are provided, one for covering each elbow connector 51. This structure improves the assembly precision of the horizontal elbow.

[0095] Specifically, the elbow connector 51 is provided with a first vertical plate 512 and a second vertical plate 513. The first vertical plate 512 and the second vertical plate 513 are arranged orthogonally. The first vertical plate 512 intersects with the first side of the end of the first baffle 52 and the first side of the end of the second baffle 53, and the second vertical plate 513 intersects with the second side of the end of the first baffle 52 and the second side of the end of the second baffle 53. This structure can seal the gap between the extension sections of the first baffle 52 and the second baffle 53 within the elbow connector 51 in the X and Y directions. A sealing plate 55 is then provided on the elbow connector 51, surrounding the first vertical plate 512, the second vertical plate 513, the ends of the first baffle 52 and the ends of the second baffle 53, to seal in the Z direction, thereby achieving sealing of the second cavity 54 formed by the first baffle 52 and the second baffle 53.

[0096] like Figure 27 and Figure 28 As shown, in this embodiment, mounting plates 56 are provided on the first and second sides of the first baffle 52, as well as the first and second sides of the second baffle 53. The mounting plates 56 extend along the Z direction. With the aid of these mounting plates 56, the ends of the first side of the first baffle 52 and the first side of the second baffle 53 can be fixed to the first vertical plate 512, and the ends of the second side of the first baffle 52 and the second side of the second baffle 53 can be fixed to the second vertical plate 513. Obviously, other methods can also be used to fix the first and second baffles 52, 53 to the first and second vertical plates 512, 513, for example, by providing slots on the first and second vertical plates 512, 513 that cooperate with the first and second baffles 52, 53.

[0097] like Figure 25As shown, on the basis of the installation of the above-mentioned mounting plate 56, in order to enhance the waterproof effect of the horizontal elbow, a waterproof rubber strip 57 is provided on the mounting plate 56, and the waterproof rubber strip 57 extends from one end of the mounting plate 56 to the other end in the Z direction. Through the above-mentioned waterproof rubber strip 57, the joint surface between the first side of the first baffle 52, the first side of the second baffle 53 and the first vertical plate 512, as well as the joint surface between the first side of the first baffle 52, the first side of the second baffle 53 and the extension area 12 of the conductive bar 10 can be sealed; and the joint surface between the second side of the first baffle 52, the second side of the second baffle 53 and the second vertical plate 513, as well as the joint surface between the second side of the first baffle 52, the second side of the second baffle 53 and the extension area 12 of the conductive bar 10 can be sealed. Specifically, see Figure 27 and Figure 28 A step 561 is provided on the mounting plate 56 , and the waterproof tape 57 is bonded to the step 561 .

[0098] like Figure 28 As shown, in order to prevent the corner of the second baffle 53 from piercing the insulating film at the inner corner of the conductive bar 10, the second baffle 53 is bent into a first flat plate 531, a second flat plate 532 and a third flat plate 533. The second flat plate 532 is located between the first flat plate 531 and the third flat plate 533, forming a corner between the first flat plate 531 and the third flat plate 533. Figure 29 As shown, after assembly, the first plate 531 and the third plate 533 are attached to the extension area 12 of the conductive bar 10, and the second plate 532 can form a clearance gap 58 at the corner of the conductive bar 10, that is, it will not abut the inner corner of the conductive bar 10, and can also be used to accommodate the portion of the second insulating film located in the elbow connector 51, thereby ensuring insulation performance.

[0099] refer to Figure 22 and Figure 26 In this embodiment, fixing holes 414 are provided at both ends of the cover plate 41, and fixing columns 514 are correspondingly provided on the elbow connector 51. With the help of these fixing holes 414 and fixing columns 514, the cover plate 41 and the elbow connector 51 can be fixed by fasteners to realize the assembly of the cover plate 41 and the elbow connector 51.

[0100] In order to assemble the elbow connector 51 and the cover plate 41 more firmly, outward protrusions are provided on both sides of the first plate body 411 and the second plate body 412 of the cover plate 41. These protrusions form ribs 415. The two sides of the bottom wall of the first end and the second end of the elbow connector 51 are recessed inward to form grooves 515. The ribs 415 cooperate with the grooves 515, making the assembly of the cover plate 41 and the elbow connector 51 convenient and firm.

[0101] refer to Figure 22, both ends of the cover plate 41 are provided with not only fixing holes 414 but also drainage holes 416 for drainage. In order to avoid the fixing holes 414 and the drainage holes 416 being blocked by the side plates 42, causing assembly inconvenience and affecting drainage performance, such as Figure 30 As shown, the front and rear ends of the side walls 422 of the side panels 42 are recessed inward to form gaps 423 for accommodating the fixing holes 414 and the drain holes 416 , so that no interference with the fixing holes 414 and the drain holes 416 occurs during assembly.

[0102] In summary, the horizontal elbow of this embodiment forms a second cavity through the two elbow connectors and the first and second baffles of the elbow assembly. The corner of the conductive bar is assembled, and the extended area of ​​the conductive bar is assembled through a two-piece housing assembly. Thus, the two housing assemblies and the elbow assembly together complete the assembly of the conductive bar. The horizontal elbow is assembled, eliminating the need for welding and the resulting assembly errors, and its appearance is aesthetically pleasing.

[0103] The above embodiments are not exhaustive and may include many other embodiments not listed above. Any replacements and improvements made without violating the concept of the present invention are within the scope of protection of the present invention.

Claims

1. A conductive bar assembly method, wherein the conductive bar comprises a corner area and an extension area, characterized in that: The assembly steps include: Wrapping the extended area of ​​the conductive bar with a first insulating film; Stacking the conductive bars, using a second insulating film to cover the corner regions of the conductive bars along a first direction, and ensuring that the boundary of the second insulating film extends beyond the boundary of the corner regions of the conductive bars by at least 20 mm along a second direction; Assemble the stacked conductive bars into the bus duct elbow; The first direction is parallel to the surface of the conductive bar and points from one extension area to the other extension area; the surface of the corner area and the surface of the extension area of ​​the conductive bar are located in the same plane, and the second direction and the first direction intersect perpendicularly in the same plane; The bus duct elbow is an assembled elbow, which includes: two shell components and an elbow component, with each side of the elbow component mounted on a shell component. The shell component has a first cavity for assembling the extension area of ​​the conductive bar, and the elbow component has a second cavity for assembling the corner area of ​​the conductive bar. A clearance gap is provided in the second cavity, and the clearance gap is used to accommodate a portion of the second insulating film that exceeds the corner area of ​​the conductive row in the second direction; The elbow assembly includes a first connector provided on the outside of the elbow, a second connector provided on the inside of the elbow, and two sealing assemblies. The first connector and the second connector are spaced apart along the second direction, and the two sealing assemblies are spaced apart along the direction intersecting with the surface of the conductive bar. The two ends of the sealing assembly are respectively fixed on the first connector and the second connector. The first connector, the second connector and the two sealing assemblies enclose to form the second cavity; the first connector and the second connector are fixed on the shell assembly.

2. The conductive bar assembly method according to claim 1, wherein: There is a first gap between the first connecting member and the outer corner of the conductive bar, and a second gap between the second connecting member and the inner corner of the conductive bar. At least one of the first gap and the second gap forms the clearance gap.

3. The conductive bar assembly method according to claim 1, wherein: The housing assembly is a two-piece bus duct, comprising a cover plate and a side plate mounted on the cover plate, wherein the cover plate and the side plate enclose one another to form the first cavity.

Images