Conducting bar assembling method and assembled elbow

Abstract

The invention discloses a conducting bar assembly method and an assembly type elbow. The method comprises the following steps: wrapping an extension area of a conducting bar with a first insulating film; the conducting bars are stacked, during stacking, a second insulating film is adopted to cover the corner areas of the conducting bars in the first direction, and the boundary of the second insulating film exceeds the boundary of the corner areas of the conducting bars in the second direction; and assembling the stacked conducting bars in the bus duct elbow. The elbow comprises two shell assemblies and an elbow assembly, the two sides of the elbow assembly are installed on the shell assemblies respectively, each shell assembly is provided with a first cavity and an extension area used for assembling stacked conducting bars, and the elbow assembly is provided with a second cavity and a corner area used for assembling the stacked conducting bars; a receding gap is formed in the second cavity and used for containing the part, exceeding the corner area of the conducting bar, of the second insulating film. The assembly error is small and the assembly precision is high.

Description

Technical Field

[0001] The 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] As a transmission facility for high-current power supply lines, bus ducts are widely used in electrical equipment and power systems in civil buildings, factories, etc. Since the layout of bus ducts generally depends on the structure of the building and the already arranged bridge lines, there are generally turns. In the power supply line, in order to achieve the turning transmission of current, elbows are generally used to assemble copper bars with corners. The assembly quality between the two is the guarantee of whether the expected direction of current can be achieved in the construction and connection of the bus duct.

[0003] In order to ensure that the copper busbar meets the electrical requirements and insulation performance, it is currently necessary to wrap insulating tape around the corners of the copper busbar. However, when the insulating tape is manually wrapped around the copper busbar, the thickness of the copper busbar at the corners is difficult to control. In addition, the elbows made by welding have large dimensional deviations, and the thickness of the copper busbar after wrapping often exceeds expectations, resulting in assembly errors and making it difficult to assemble these copper busbars. 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 corner is difficult to control during assembly and there is an assembly error.

[0005] The technical solution is as follows: A first aspect of the present invention provides a conductive bar assembly method, wherein the conductive bar comprises a corner region and an extension region, and the assembly steps comprise: Using a first insulating film to wrap the extended area of ​​the conductive bar; Stacking the conductive bars, using a second insulating film to cover the corner area of ​​the conductive bars along a first direction during stacking, and making the boundary of the second insulating film exceed the boundary of the corner area of ​​the conductive bars along a second direction; Assemble the stacked conductive bars into the bus duct elbow.

[0006] 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.

[0007] In one of the embodiments, 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 vertically.

[0008] In one embodiment, when the conductive rows are stacked vertically, the second insulating film is stacked on the surface of the corner area of ​​the conductive row; when the conductive rows are stacked horizontally, the second insulating film is bent and attached to the surface of the corner area of ​​the conductive row.

[0009] A second aspect of the present invention provides an assembled elbow, comprising: Two housing components and an elbow component, with the two sides of the elbow component respectively mounted on one housing component, the housing component having a first cavity for assembling the extension area of ​​the conductive bar, and the elbow component having 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.

[0010] In one of the embodiments, for assembling horizontally stacked conductive bars, the elbow assembly includes two elbow connectors and a first baffle and a second baffle that are arranged opposite to each other, the first baffle and the second baffle are arranged at an interval, 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 another of the elbow connectors, and the two elbow connectors, the first baffle and the second baffle enclose a second cavity.

[0011] 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 on the ends of the first baffle and the ends of the second baffle, and 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.

[0012] In one of the embodiments, for assembling vertically stacked conductive bars, the elbow assembly includes a first connector arranged on the outside of the elbow, a second connector arranged 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.

[0013] In one embodiment, a first gap is provided between the first connecting member and an outer corner of the conductive row, a second gap is provided between the second connecting member and an inner corner of the conductive row, and at least one of the first gap and the second gap forms the clearance gap.

[0014] In one embodiment, the housing assembly is a two-piece bus duct, including a cover plate and a side plate installed on the cover plate, and the cover plate and the side plate enclose the first cavity.

[0015] The technical solution provided by the present invention has the following advantages and effects: The conductive bar assembly method of the present invention uses a second insulating film to cover the corner area of ​​the conductive bar, and there is no need to wrap insulating tape around the corner area of ​​the conductive bar. The thickness of the second insulating film is determined, which can avoid the situation where the thickness at the corner is uncontrollable. The conductive bar is simple and convenient to assemble, and the boundary of the second insulating film is made to exceed the boundary of the corner area of ​​the conductive bar to meet the electrical clearance and creepage distance, and the assembly quality is high.

[0016] The assembly type elbow of the present invention is assembled with the extension area of ​​the stacked conductive bars through the shell component, and the corner area of ​​the stacked conductive bars is assembled through the elbow component. The assembly type structure is adopted, and the elbow does not need to be welded, thus avoiding the dimensional deviation caused by welding, and the assembly accuracy is high. Moreover, by setting a clearance gap in the second cavity, the part of the second insulating film that exceeds the corner area of ​​the conductive bar can be accommodated, and it is suitable for assembly with the corner area of ​​the conductive bar covered by the second insulating film. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the first type of conductive bar; Figure 2 This is the effect diagram of vertical stacking of conductive rows; Figure 3 is a schematic diagram of the second conductive bar; Figure 4 This is the effect diagram of horizontal stacking of conductive rows; Figure 5 This is the effect diagram of vertical stacking of conductive rows after using the second insulating film; Figure 6 This is a diagram showing the effect of horizontal stacking of conductive rows after using the second insulating film; Figure 7 This is a schematic diagram of creepage distance and electrical clearance; Figure 8 is a three-dimensional diagram of the vertical elbow of this embodiment; Fig. 9 is a perspective view of a housing assembly in a vertical elbow; Fig.10 is a three-dimensional view of a cover plate in a vertical elbow; Fig.11 is a three-dimensional view of the side plate in the vertical elbow; Fig.12 is a perspective view of an elbow assembly in a vertical elbow; Fig.13 is a three-dimensional diagram of a first connecting member in a vertical elbow; Fig.14 is a three-dimensional view of a second connecting member in a vertical elbow; Fig.15 It is a top view of the vertical elbow after assembly without the sealing component; Fig.16 A three-dimensional view of the vertical elbow after assembly with the upper sealing assembly removed; Fig.17 for Fig.16 The enlarged view of point A in the middle; Fig.18 for Fig.16 The enlarged view of point B in the middle; Fig.19 is a perspective view of a sealing assembly in a vertical elbow; Fig. 20 is a three-dimensional diagram of the horizontal elbow of this embodiment; Fig.21 is a perspective view of a housing assembly in a horizontal elbow; Fig. 22 is a three-dimensional diagram of a cover plate in a horizontal elbow; Fig.23 is a three-dimensional diagram of the side plate in the horizontal elbow; Fig.24 is a three-dimensional diagram of an elbow assembly in a horizontal elbow; Fig.25 A perspective view of a horizontal elbow after removing one elbow connector; Fig.26 is a three-dimensional diagram of an elbow connector in a horizontal elbow; Fig. 27 is a three-dimensional diagram of a first baffle in a horizontal elbow; Fig.28 is a three-dimensional diagram of a second baffle in a horizontal elbow; Fig.29 A top view of an assembled elbow assembly in a horizontal elbow; Fig.30 It is a three-dimensional view of the side plate of another embodiment of the horizontal elbow.

[0018] Description of reference numerals: 10. Conductive bar, 12. Extension area, 13. Corner area, 14. First insulating film, 15. Second insulating film, 20. Shell 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, 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, 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, 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 plate, 53. Second baffle plate, 531. First flat plate, 532. Second flat plate, 533. Third flat plate, 54. Second cavity, 55. Sealing plate, 56. Mounting plate, 561. Step, 57. Waterproof rubber strip, 58. Clearance. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of the present invention, specific embodiments of the present invention will be described in more detail below with reference to the accompanying drawings.

[0020] Unless otherwise specified or defined, the "first, second..." used in this article is merely used to distinguish names and does not represent a specific quantity or order.

[0021] Unless specifically stated or defined otherwise, the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] 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.

[0023] 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 4Both conductive bars 10 include an extension area 12 and a corner area 13. During assembly, each conductive bar 10 needs to be wrapped with insulating material first, and then the corner area 13 is manually wrapped with insulating tape to meet electrical requirements. Then, multiple conductive bars 10 are stacked together and then transferred to the elbow.

[0024] In view of 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 the electrical requirements. Finally, the stacked conductive bars are assembled in the elbow. There is no need to manually wrap the 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 accurate, and the thickness of the corner area will not be uncontrollable, which can improve the assembly accuracy.

[0025] The first insulating film 14 and the second insulating film 15 are made of insulating material, which is PET (Polyethylene Terephthalate) in this embodiment, and has excellent electrical insulation performance, 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.

[0026] 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, and 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 conductive bar 10 is stacked differently, and the covering method is also different. If Figure 2 When stacked vertically as shown, a rectangular second insulating film 15 is used to cover the gap. After the conductive bars 10 are stacked, Figure 5As 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 a 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, i.e., 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, i.e., the length direction of the second insulating film 15. In other words, the length of the second insulating film 15 is long enough to make the boundaries of the second insulating film 15 at both ends in the longitudinal direction 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 FIG. Figure 6 As shown. The second insulating film 15 is bent and attached to the surface of the corner area 13 of the conductive bar 10. 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, i.e., the length direction of the second insulating film 15, that is, the length of the second insulating film 15 is long 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 housing, 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 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 to make the boundaries of the second insulating film 15 at both ends of the lateral direction exceed the boundaries of the corner area 13 of the conductive bar 10.

[0027] In summary, the assembly process of this embodiment can be described as follows: first, the first insulating film 14 (such as polyester film) is wrapped along the length direction of the conductive bar 10 to the vicinity of the corner area 13, a gap is reserved at the junction of the first insulating film 14, and then a second insulating film 15 (such as a film spacer) is covered on the gap. The size of the second insulating film 15 must exceed the gap by a certain distance to ensure the electrical clearance and creepage distance between the conductive bars and between the conductive bars and the housing. Then, the stacked conductive bars are placed in the elbow, and the gaps of the conductive bar insulation and the part of the film spacer that exceeds the conductor bar are both in the cavity of the elbow.

[0028] In order to ensure the creepage distance and electrical clearance of the conductive bar, the distance that the boundary of the second insulating film 15 exceeds 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.

[0029] In view of the problem that welded elbows have large size deviations, are prone to assembly errors and are not aesthetically pleasing, the present invention provides an assembled elbow, including: two shell components and an elbow component, the two sides of the elbow component are each installed on a shell component, the shell component has a first cavity, and the elbow component has a second cavity. When assembling the stacked conductive bars, the extension area of ​​the conductive bars is installed in the first cavity, the corner area of ​​the conductive bars is installed 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 welding technology, which can improve the assembly accuracy, and the assembled bus duct elbow has a beautiful appearance.

[0030] In order to adapt to the conductive bar assembly method of the present invention, a clearance gap is further provided in the second cavity, and the clearance gap is used to accommodate the portion of the second insulating film that exceeds 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.

[0031] This embodiment provides two types of bus duct elbows, one is a horizontal elbow for assembling horizontally stacked conductive bars, and the other is a vertical elbow for assembling vertically stacked conductive bars.

[0032] Vertical elbow example: Figure 8 : is a three-dimensional diagram of the vertical elbow of this embodiment. The vertical elbow mainly includes two shell components 20 and an elbow component 30. The shell component 20 is beveled at one end to form a beveled end 21. The two sides of the elbow component 30 are riveted to the beveled end 21 of a shell component 20 respectively, and the two shell components 20 are arranged orthogonally. After being assembled with the elbow component 30, a elbow is formed. The shell component 20 is used to assemble the extension area 12 of the conductive bar 10, and the elbow component 30 is used to assemble the corner area 13 of the conductive bar 10. In some embodiments, the two shell components 20 can also be arranged to intersect at a certain angle.

[0033] like Fig. 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. Fig.10As shown, the cover plate 22 is an H-shaped structure, including an integrally formed first plate body 221, a second plate body 222 and a third plate body 223. The first plate body 221 and the second plate body 222 are arranged opposite to each other, and the third plate body 223 is between the first plate body 221 and the second plate body 222. The side plate 23 is installed on the cover plate 22. The specific installation method is not limited. The side plate 23 can be fixed to the cover plate 22 by fasteners such as rivets, or the side plate 23 can be pressed into the cover plate 22 in a tight fit. Fig.11 As shown, the side plate 23 is in the shape of a door frame, and includes an integrally formed bottom plate 231 and two side walls 232, and the two side walls 232 are respectively fixed on the first plate body 221 or the second plate body 222. Fig. 9 As shown, after the side plate 23 is installed on the cover plate 22, there is a gap between the bottom plate 231 of the side plate 23 and the third plate body 223 of the cover plate 22, and the gap can be used to assemble the extension area 12 of the conductive bar 10, that is, the cover plate 22 and the side plate 23 enclose a first cavity 24 for accommodating the extension area 12 of the conductive bar 10. The above two-piece structure is simple in structure, easy to manufacture, and the conductive bar is easy and convenient to assemble. When the housing assembly 20 is beveled, one end of the cover plate 22 and the side plate 23 is also beveled accordingly. After the cover plate 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.

[0034] like Fig.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 arranged at intervals 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 arranged at intervals along a direction perpendicular to the second direction. The two ends of the sealing assemblies 33 are respectively fixed on 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 assembled elbow assembly 30 is adopted, so that the corner area 13 of the conductive bar 10 is 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 accuracy.

[0035] When the elbow assembly 30 is fixed 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 by riveting or screwing. Of course, the fixing method of the elbow assembly 30 and the housing assembly 20 is not limited, and the installation and fixing can also be carried out in a manner other than this embodiment.

[0036] like Fig.13As shown, the first connector 31 is a frame structure, including two first columns 311, and a first plate 312 is connected between the two first columns 311. The first plate 312 can achieve the sealing of the second cavity 34 outside the elbow. The first end 331 of the sealing component 33 is provided with a shape that matches the two first columns 311, so that the first end 331 can be snap-fitted between the two first columns 311, and the sealing component 33 can be limited.

[0037] like Fig.14 As 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.

[0038] like Fig.15 As shown, the first plate 312 protrudes in the direction away from the elbow, and there is a first gap 37 between the first plate 312 and the outer corner of the conductive bar 10, and there is a second gap 38 between the second plate 322 and the inner corner of the conductive bar 10. The first gap 37 and the second gap 38 form a clearance gap, which can ensure the creepage distance and electrical clearance of the conductive bar. In order to meet different levels of electrical requirements, the width of the clearance gap along the second direction is at least 20mm. For example: the shortest distance between the first plate 312 and the outer corner of the conductive bar 10 is more than 20mm, that is, preferably, 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 not less than 20mm.

[0039] By designing the first connector 31 and the second connector 32 as a frame structure, it is convenient to install and fix the sealing assembly 33 on the first connector 31 and the second connector 32, and the appearance is more beautiful after the first connector 31 and the second connector 32 are assembled with the housing assembly 20. Specifically, the first plate body 312 and the second plate body 322 are both provided with a fixing column 35, through which the sealing assembly 33 can be fixed to the first connector 31 and the second connector 32 by a threaded fastener. It should be noted that the fixing between the sealing assembly 33 and the first plate body 312 and the second plate body 322 can also be fixed in other ways.

[0040] Due to the need for fitting 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 away from the side plate 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 plate 23, the beveled surface of the second column 321 overlaps with the beveled surfaces of the cover plate 22 and the side plate 23 to form 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, and one dovetail groove 333 cooperates with a sharp angle 36 to achieve the snap-on limit of the sealing assembly 33 on the two second columns 321 of the second connecting member 32.

[0041] In order to strengthen the firmness of the vertical elbow after assembly, refer to Figure 16-18 A first convex column 313 is provided at the connection between the first plate 312 and the first column 311, and a second convex column 323 is provided at the connection between the second plate 322 and the second column 321. The specific shapes of the first convex column 313 and the second convex column 323 are not limited, and can be strip-shaped, triangular-shaped, column-shaped, etc. The first convex column 313 extends toward the inside of the elbow and abuts on the first cut surface 224 of the cover body 22 or abuts on the cut surfaces of the cover body 22 and the side plate 23. The second convex column 323 also extends toward the inside of the elbow and abuts on the second cut surface 225 of the cover body 22 or abuts on the cut surfaces of the cover body 22 and the side plate 23.

[0042] like Fig.19 As shown, in this embodiment, a plurality of ribs 335 are arranged at intervals on the first surface 334 of the sealing component 33. The ribs 335 are preferably arranged in the longitudinal direction of the sealing component 33, but can also be arranged in the transverse direction of the sealing component 33. The first surfaces 334 of the two sealing components 33 are arranged facing each other and both face the second cavity 34. After such arrangement, the corner section 13 of the copper busbar 10 assembled in the second cavity 34 is more stable.

[0043] In order to enhance the waterproof effect, a groove may be provided on the surface of the first connector 31 that matches the cover plate 22, and a groove may also be provided on the surface of the second connector 32 that matches the cover plate 22, and a waterproof strip may be installed in the groove. Specifically, in this embodiment, grooves are provided on the surface of the two first columns 311 of the first connector 31 that match the cover plate 22, and grooves are provided on the surface of the two second columns 321 of the second connector 32 that match the cover plate 22.

[0044] refer to Fig.19In order to facilitate the assembly of the sealing component 33 with the first connector 31 and the second connector 32, the sealing component 33 is split, including two protective plates 336 and a sealing plate 337. A protective plate 336 is fixedly installed at each end of the sealing plate 337, and the protective plate 336 is fixed on the first connector 31 or the second connector 32. By adopting the above-mentioned split structure, the length of the sealing plate 337 can be cut according to the width of the conductive bar, reducing the type of materials, and no subsequent processing is required, which has better adaptability. When the sealing component 33 adopts the above-mentioned split structure, the rib 335 can be set on one side surface of the sealing plate 337. In order to enhance the waterproof effect, a waterproof pad can be set between the protective plate 336 and the sealing plate 337.

[0045] 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, the cover plate 22 and the elbow assembly 30 are easy and firmly assembled.

[0046] In summary, the vertical elbow of this embodiment forms a second cavity through the first connector, the second connector and the two sealing components, assembles the corner area of ​​the conductive bar, and assembles the extension area of ​​the conductive bar through the two-piece bus duct, so that the two bus ducts and one elbow component together realize the assembly of the conductive bar. The vertical elbow is assembled, does not require welding, does not have assembly errors caused by welding, and has a beautiful appearance.

[0047] Horizontal elbow embodiment: Fig. 20 : is a three-dimensional diagram of the horizontal elbow of this embodiment. The horizontal elbow mainly includes two shell components 40 and an elbow component 50. The two ends of the elbow component 50 are riveted to a shell component 40 respectively to form an L-shaped horizontal elbow. The shell component 40 is used to be installed in the extension area 12 of the conductive bar 10, and the elbow component 50 is used to be installed in the corner area 13 of the conductive bar 10.

[0048] like Fig.21 As shown, unlike the conventional four-piece structure, the housing assembly 40 is a two-piece structure, including a cover plate 41 and a side plate 42. Fig. 22As shown, the cover plate 41 is an H-shaped structure, including an integrally formed first plate body 411, a second plate body 412 and a third plate body 413. The first plate body 411 and the second plate body 412 are arranged opposite to each other, and the third plate body 413 is between the first plate body 411 and the second plate body 412. The side plate 42 is installed on the cover plate 41. The specific installation method is not limited. The side plate 42 can be fixed to the cover plate 41 by fasteners such as rivets, or the side plate 42 can be pressed into the cover plate 41 in a tight fit. Fig.23 As shown, the side plate 42 is in the shape of a door frame, including an integrally formed bottom plate 421 and two side walls 422, and the two side walls 422 are respectively fixed on the first plate body 411 or the second plate body 412. After the side plate 42 is installed on the cover plate 41, there is a gap between the bottom plate 421 of the side plate 42 and the third plate body 413 of the cover plate 41, and the gap can be used to assemble the extension area 12 of the conductive bar 10, that is, the cover plate 41 and the side plate 42 are enclosed to form a first cavity 43 for accommodating the extension area 12 of the conductive bar 10. The above two-piece structure is simple in structure, easy to manufacture, and the conductive bar is easy and convenient to assemble.

[0049] like Fig.24 As shown, the elbow assembly 50 includes two elbow connectors 51 arranged opposite to 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. 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 arranged at intervals. One elbow connector 51 is fixedly connected to the first plate body 411 of the cover plate 41, and the other elbow connector 51 is fixedly connected to the second plate body 412 of the cover plate 41, so that the cover plate 41 and the elbow connector 51 are fixedly connected. The first end of the first baffle 52 and the first end of the second baffle 53 are installed on one elbow connector 51, and the second end of the first baffle 52 and the second end of the second baffle 53 are installed on the other elbow connector 51, so that the first baffle 52 and the second baffle 53 are fixed. The two elbow connectors 51 and the first baffle 52 and the second baffle 53 are used to enclose and form a second cavity 54, which can accommodate the corner area 13 of the conductive bar 10. In this embodiment, the cross-sections of the first baffle 52 and the second baffle 53 are at least partially L-shaped, so that the first baffle 52 and the second baffle 53 can fit the corner area 13 of the conductive bar 10. It should be noted that the corner angle of the first baffle 52 and the second baffle 53 is not limited to this angle. For example, when the corner of the conductive bar 10 is an obtuse angle, it is only necessary to change the degree of the corner of the first baffle 52 and the second baffle 53 accordingly.

[0050] In some embodiments, Fig.25 and Fig.26As shown, in this embodiment, a through hole 511 is provided on the elbow connector 51, through which the end of the first baffle 52 and the end of the second baffle 53 are inserted into the elbow connector 51, that is, the size of the first baffle 52 and the second baffle 53 in the Z direction is greater than the size of the conductive bar 10 in the Z direction. The ends of the first baffle 52 and the second baffle 53 have the same extension length in the elbow connector 51, and the first baffle 52 and the second baffle 53 located in the elbow connector 51 form a clearance gap, which is used to accommodate the portion of the second insulating film located in the elbow connector 51.

[0051] In order to meet the electrical requirements of different levels, the preferred extension length range is at least 20 mm. In order to seal the gap between the end of the first baffle 52 and the end of the second baffle 53, two sealing plates 55 are provided, one sealing plate 55 is used to cover one elbow connector 51. With the above structure, the assembly accuracy of the horizontal elbow is higher.

[0052] Specifically, the elbow connector 51 is provided with a first vertical plate 512 and a second vertical plate 513, which 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. Through the above structure, the gap between the extension sections of the first baffle 52 and the second baffle 53 in the elbow connector 51 can be sealed in the X and Y directions. Then, the sealing plate 55 is arranged on the elbow connector 51 around the first vertical plate 512, the second vertical plate 513, the end of the first baffle 52, and the end of the second baffle 53, and is sealed in the Z direction, thereby realizing the sealing of the second cavity 54 formed by the first baffle 52 and the second baffle 53.

[0053] like Fig. 27 and Fig.28 As shown, in this embodiment, the first side and the second side of the first baffle 52, and the first side and the second side of the second baffle 53 are both provided with mounting plates 56, and the mounting plates 56 extend along the Z direction. With the help of these mounting plates 56, the end of the first side of the first baffle 52 and the end of the first side of the second baffle 53 can be fixed on the first vertical plate 512, and the end of the second side of the first baffle 52 and the end of the second side of the second baffle 53 can be fixed on the second vertical plate 513. Obviously, other methods can also be used to fix the first baffle 52 and the second baffle 53 on the first vertical plate 512 and the second vertical plate 513, for example: the first vertical plate 512 and the second vertical plate 513 are provided with card slots that match the first baffle 52 and the second baffle 53.

[0054] like Fig.25As shown, on the basis of providing 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, and 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, and 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 Fig. 27 and Fig.28 A step 561 is provided on the mounting plate 56 , and the waterproof adhesive strip 57 is bonded to the step 561 .

[0055] like Fig.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, and the second flat plate 532 is located between the first flat plate 531 and the third flat plate 533 to form a corner between the first flat plate 531 and the third flat plate 533. Fig.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 part of the second insulating film located in the elbow connector 51, thereby ensuring the insulation performance.

[0056] refer to Fig. 22 and Fig.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 achieve assembly of the cover plate 41 and the elbow connector 51.

[0057] 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, and 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, so that the cover plate 41 and the elbow connector 51 are easy and firmly assembled.

[0058] refer to Fig. 22The two 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, which causes inconvenience in assembly and affects the drainage performance, such as Fig.30 As shown, the front and rear ends of the side wall 422 of the side plate 42 are recessed inward to form a gap 423 for avoiding the fixing hole 414 and the drain hole 416, so that no interference with the fixing hole 414 and the drain hole 416 occurs during assembly.

[0059] In summary, the horizontal elbow of this embodiment forms a second cavity through two elbow connectors of the elbow assembly and the first baffle and the second baffle, assembles the corner of the conductive bar, and assembles the extension area of ​​the conductive bar through a two-piece shell assembly, so that the two shell assemblies and one elbow assembly together realize the assembly of the conductive bar. The horizontal elbow is assembled, does not require welding, does not have assembly errors caused by welding, and has a beautiful appearance.

[0060] The above embodiments are not exhaustive enumerations of the present invention, and there may be multiple other implementations not listed. Any replacement and improvement made without violating the concept of the present invention shall fall within the protection scope 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: Using a first insulating film to wrap the extended area of ​​the conductive bar; Stacking the conductive bars, using a second insulating film to cover the corner area of ​​the conductive bars along a first direction during stacking, and making the boundary of the second insulating film exceed the boundary of the corner area of ​​the conductive bars 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 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 vertically.

2. The conductive bar assembly method according to claim 1, wherein: 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.

3. The conductive bar assembly method according to any one of claims 1 to 2, characterized in that: When the conductive rows are stacked vertically, the second insulating film is stacked on the surface of the corner area of ​​the conductive row; when the conductive rows are stacked horizontally, the second insulating film is bent and attached to the surface of the corner area of ​​the conductive row.

4. Assembly type elbow, characterized in that: include: Two housing components and an elbow component, with the two sides of the elbow component respectively mounted on one housing component, the housing component having a first cavity for assembling the extension area of ​​the conductive bar, and the elbow component having 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.

5. The assembly elbow as claimed in claim 4 is used to assemble horizontally stacked conductive bars, characterized in that: The elbow assembly includes two elbow connectors arranged opposite to each other and a first baffle and a second baffle. The first baffle and the second baffle are arranged at an interval. The first end of the first baffle and the first end of the second baffle are both fixed to one of the elbow connectors, and 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. The two elbow connectors, the first baffle and the second baffle enclose a second cavity.

6. The assembled elbow according to claim 5, characterized in that: 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 also includes two sealing plates, each of which is covered on an elbow connector, and the sealing plate covers are provided on the ends of the first baffle and the ends of the second baffle, the two sealing plates, the first baffle and the second baffle are combined to form the second cavity, and the first baffle and the second baffle located in the elbow connector form the clearance gap.

7. The assembly elbow as claimed in claim 4 is used to assemble vertically stacked conductive bars, characterized in that: The elbow assembly includes a first connecting member arranged on the outside of the elbow, a second connecting member arranged on the inside of the elbow, and two sealing assemblies. The first connecting member and the second connecting member are arranged at intervals along a second direction, and the two sealing assemblies are arranged at intervals along a direction intersecting the second direction. The two ends of the sealing assembly are respectively fixed on the first connecting member and the second connecting member. The first connecting member, the second connecting member and the two sealing assemblies enclose and form the second cavity.

8. The assembled elbow according to claim 7, characterized in that: A first gap is provided between the first connecting member and an outer corner of the conductive row, a second gap is provided between the second connecting member and an inner corner of the conductive row, and at least one of the first gap and the second gap forms the clearance gap.

9. The assembled elbow according to any one of claims 4 to 8, characterized in that: The housing assembly is a two-piece bus duct, including a cover plate and a side plate installed on the cover plate, and the cover plate and the side plate enclose the first cavity.

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