Copper bar connecting structure of confluence cabinet

Abstract

The utility model provides a confluence cabinet copper bar connecting structure. The confluence cabinet copper bar connecting structure comprises a first switch assembly, a second switch assembly, a first copper bar, a second copper bar, a first fuse, a second fuse, a third copper bar, a fourth copper bar, a fifth copper bar, a first fixing plate and a second fixing plate. One end of the first copper bar is connected with the first switch assembly, and the other end is connected with the second switch assembly; one end of the second copper bar is connected with the first switch assembly, and the other end is connected with the second switch assembly; the first fuse is connected with the first copper bar and the third copper bar. The second fuse is connected with the second copper bar and the fourth copper bar. One end of the fifth copper bar is connected with the first switch assembly, and the other end of the fifth copper bar is connected with the second switch assembly; the first switch assembly is connected with the first fixing plate and the second fixing plate. The second switch assembly is connected with the first fixing plate and the second fixing plate. According to the invention, the layout of each element is reasonable, the size of the cabinet body is reduced, and the use safety and reliability are good.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a copper bar connection structure of a combiner cabinet. Background Art

[0002] The combiner cabinet is a crucial component of the energy storage system, primarily facilitating the interaction between the AC and DC sides. The energy storage system's charging and discharging is performed through the combiner cabinet. Specifically, the power lines from the cluster management box converge at the combiner cabinet, which connects to the UPS, which in turn connects to an external power source or load. This allows the energy storage system to exchange energy with the outside world.

[0003] With the widespread adoption of consumer electronics, new energy vehicles, ships, and energy storage systems, communication aerial plugs are also being used extensively. In applications where communication aerial plugs are numerous, improving electrical assembly efficiency is increasingly important due to the numerous interfaces and complex wiring harnesses. Existing combiner cabinets can provide AC power supply, but combiner cabinets with DC power supply capabilities are rarely used in practice. Furthermore, combiner cabinets often have a chaotic internal layout, low space utilization, high manufacturing costs, and low safety and reliability, making them difficult to install and maintain. Utility Model Content

[0004] Based on this, an embodiment of the present invention provides a copper busbar connection structure for a combiner cabinet, aiming to solve the problems of chaotic internal layout, difficult layout and routing, low space utilization, inconvenience in installation and maintenance, and high cost of the entire cabinet in existing combiner cabinets.

[0005] To achieve the above-mentioned object, an embodiment of the present invention provides a copper bar connection structure for a combiner cabinet, comprising a first switch assembly, a second switch assembly, a first copper bar, a second copper bar, a first fuse, a second fuse, a third copper bar, a fourth copper bar, a fifth copper bar, a first fixing plate, and a second fixing plate;

[0006] One end of the first copper bar is connected to the first switch assembly, and the other end is connected to the second switch assembly; one end of the second copper bar is connected to the first switch assembly, and the other end is connected to the second switch assembly; the first fuse is connected to the first copper bar and the third copper bar respectively; the second fuse is connected to the second copper bar and the fourth copper bar respectively; one end of the fifth copper bar is connected to the first switch assembly, and the other end is connected to the second switch assembly;

[0007] The first switch assembly is connected to the first fixing plate and the second fixing plate respectively; the second switch assembly is connected to the first fixing plate and the second fixing plate respectively.

[0008] As a preferred embodiment, the first switch assembly and the second switch assembly are arranged in parallel, and the first switch assembly and the second switch assembly have the same structure.

[0009] As a preferred embodiment, the first switch assembly includes a first switch body, a first switch copper bar, a second switch copper bar and a third switch copper bar arranged on the top of the first switch body, and a fourth switch copper bar and a fifth switch copper bar arranged on the bottom of the first switch body;

[0010] The second switch copper bar is arranged between the first switch copper bar and the third switch copper bar, and the third switch copper bar and the fifth switch copper bar are both arranged close to the second switch assembly.

[0011] As a preferred embodiment, the first switch copper bar and the third switch copper bar are both "L"-shaped copper bars; the end of the first switch copper bar away from the first switch body and the end of the third switch copper bar away from the first switch body extend in opposite directions.

[0012] As a preferred embodiment, one end of the first switch copper bar away from the first switch body is connected to the first copper bar; and one end of the third switch copper bar away from the first switch body is connected to the second copper bar.

[0013] As a preferred embodiment, the first copper busbar is fixedly connected to the first switch copper busbar and the third switch copper busbar through fixing members.

[0014] As a preferred embodiment, the second switch copper busbar includes an integrally arranged first vertical portion, a connecting portion, and a second vertical portion, wherein the first vertical portion is perpendicularly arranged at one end of the connecting portion, and the second vertical portion is perpendicularly arranged at the other end of the connecting portion, and the first vertical portion and the second vertical portion extend in opposite directions; the connecting portion is fixed to the first fixing plate, and the second vertical portion is connected to the top of the first switch body; and the first vertical portion is connected to the fifth copper busbar.

[0015] As a preferred embodiment, the end of the third switch copper bar away from the first switch body has the same extension direction as the connecting portion; the height of the end of the third switch copper bar close to the first switch body is greater than the height of the second vertical portion; and the length of the connecting portion is greater than the length of the end of the third switch copper bar away from the first switch body.

[0016] As a preferred embodiment, the fifth switch copper bar includes an integrally arranged first straight portion, a parallel portion, and a second straight portion, wherein the first straight portion is perpendicularly arranged at one end of the parallel portion, the second straight portion is perpendicularly arranged at the other end of the parallel portion, and the first straight portion and the second straight portion extend in opposite directions; the parallel portion is fixed to the second fixing plate, and the second straight portion is connected to the bottom of the first switch body.

[0017] As a preferred embodiment, the second switch assembly includes a second switch body, a sixth switch copper bar, a seventh switch copper bar, and an eighth switch copper bar arranged on the top of the second switch body, and a ninth switch copper bar and a tenth switch copper bar arranged on the bottom of the second switch body;

[0018] The seventh switch copper bar is arranged between the sixth switch copper bar and the eighth switch copper bar, and the sixth switch copper bar is arranged close to the third switch copper bar; the ninth switch copper bar is arranged close to the fifth switch copper bar; and the tenth switch copper bar is fixed to the second fixing plate.

[0019] As a preferred embodiment, one end of the first copper bar is connected to the first switch copper bar, and the other end is connected to the sixth switch copper bar; one end of the second copper bar is connected to the third switch copper bar, and the other end is connected to the eighth switch copper bar; one end of the fifth copper bar is connected to the first vertical portion, and the other end is connected to the seventh switch copper bar.

[0020] As a preferred embodiment, the sixth switch copper bar is symmetrically arranged with the first switch copper bar, and the sixth switch copper bar has the same structure as the first switch copper bar;

[0021] The seventh switch copper bar is symmetrically arranged with the second switch copper bar, and the seventh switch copper bar has the same structure as the second switch copper bar;

[0022] The eighth switch copper bar is symmetrically arranged with the third switch copper bar, and the eighth switch copper bar has the same structure as the third switch copper bar;

[0023] The ninth switch copper bar is symmetrically arranged with the fourth switch copper bar, and the ninth switch copper bar has the same structure as the fourth switch copper bar;

[0024] The tenth switch copper bar is symmetrically arranged with the fifth switch copper bar, and the tenth switch copper bar has the same structure as the fifth switch copper bar.

[0025] As a preferred embodiment, the combiner cabinet copper bar connection structure further includes a sixth copper bar, one end of which is connected to the fifth switch copper bar, and the other end of which is connected to the tenth switch copper bar.

[0026] As a preferred embodiment, the combiner cabinet copper bar connection structure further includes a third fixing plate arranged parallel to the second fixing plate; the fifth switch copper bar and the tenth switch copper bar are respectively fixed to the third fixing plate.

[0027] As a preferred embodiment, the junction box copper bar connection structure also includes an epoxy board, one end of the epoxy board is arranged on the top of the first switch body, and the other end is arranged on the top of the second switch body; the first switch copper bar, the second switch copper bar, the third switch copper bar, the sixth switch copper bar, the seventh switch copper bar and the eighth switch copper bar are all fixed on the epoxy board.

[0028] Compared with the existing technology, the structure of the present application has the following technical effects: through the structure of the present application, switches and fuses can be front-maintained, installation and maintenance are convenient, and the structural connection is stable, which can ensure the stability and reliability of transportation. By controlling the connection method of each copper busbar, the present application can effectively optimize the cabinet structure, improve the space utilization rate in the cabinet, make the cable layout reasonable, beautify the line routing, and also effectively save the cost of the junction cabinet. Through the present application, the copper busbars can be reasonably arranged, the reasonable distribution of cables can be achieved, the routing space can be effectively optimized, the installation and maintenance are convenient, and the customer's use requirements for UPS without a neutral line can be met. In addition, the heat dissipation of each copper busbar and fuse is effectively improved, which facilitates the installation and maintenance of various components in the junction cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0030] Figure 1 This is a structural diagram of the copper bar connection structure of the combiner cabinet according to an embodiment of the present invention;

[0031] Figure 2 for Figure 1 A structural diagram of the copper bar connection structure of the combiner cabinet from another angle;

[0032] Figure 3 for Figure 1 A structural diagram of the copper busbar connection structure of the combiner cabinet from another angle;

[0033] Figure 4 for Figure 1Schematic diagram of the use status of the copper bar connection structure of the combiner cabinet;

[0034] Figure 5 It is a structural diagram of the combiner cabinet of this application.

[0035] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0038] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0039] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element.

[0040] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0041] This application features a simple structure, a reasonable copper busbar layout, a compact structure, simple and clear connections, and ease of implementation. It also boasts high assembly efficiency and low installation costs, optimizes the internal space layout of the combiner cabinet, and is aesthetically pleasing and simple overall, easy to maintain. It is suitable for large-scale production and effectively solves the problem of optimizing the internal space layout of the combiner cabinet. Furthermore, it can effectively address the issue of insufficient cable space affecting the electrical performance of the combiner cabinet, improve space utilization, save installation time, and facilitate subsequent maintenance.

[0042] Specifically, such as Figures 1 to 3 As shown, an embodiment of the present invention provides a copper bar connection structure for a combiner cabinet, comprising a first switch assembly 10, a second switch assembly 20, a first copper bar 30, a second copper bar 40, a first fuse 50, a second fuse 60, a third copper bar 70, a fourth copper bar 80, a fifth copper bar 90, a first fixing plate 100 and a second fixing plate 110;

[0043] One end of the first copper bar 30 is connected to the first switch assembly 10, and the other end is connected to the second switch assembly 20; one end of the second copper bar 40 is connected to the first switch assembly 10, and the other end is connected to the second switch assembly 20; the first fuse 50 is connected to the first copper bar 30 and the third copper bar 70 respectively; the second fuse 60 is connected to the second copper bar 40 and the fourth copper bar 80 respectively; one end of the fifth copper bar 90 is connected to the first switch assembly 10, and the other end is connected to the second switch assembly 20;

[0044] The first switch assembly 10 is connected to the first fixing plate 100 and the second fixing plate 110 respectively; the second switch assembly 20 is connected to the first fixing plate 100 and the second fixing plate 110 respectively.

[0045] As a preferred embodiment, the first switch assembly 10 and the second switch assembly 20 are arranged in parallel, and the first switch assembly 10 and the second switch assembly 20 have the same structure.

[0046] As a preferred embodiment, the first switch assembly 10 includes a first switch body 11, a first switch copper bar 12, a second switch copper bar 13 and a third switch copper bar 14 arranged on the top of the first switch body 11, and a fourth switch copper bar 15 and a fifth switch copper bar 16 arranged on the bottom of the first switch body 11;

[0047] The second switch copper bar 13 is disposed between the first switch copper bar 12 and the third switch copper bar 14 . The third switch copper bar 14 and the fifth switch copper bar 16 are both disposed close to the second switch assembly 20 .

[0048] As a preferred embodiment, the first switch copper bar 12 and the third switch copper bar 14 are both L-shaped copper bars; the end of the first switch copper bar 12 away from the first switch body 11 and the end of the third switch copper bar 14 away from the first switch body 11 extend in opposite directions. In the present application, the end of the first switch copper bar 12 away from the first switch body 11 and the end of the third switch copper bar 14 away from the first switch body 11 extend in opposite directions, which facilitates connection and saves connection space, provides good connection stability, and has an overall neat and aesthetic appearance. At the same time, it can effectively improve the problem of insufficient cable space affecting the electrical performance of the combiner cabinet.

[0049] As a preferred embodiment, one end of the first switch copper bar 12 away from the first switch body 11 is connected to the first copper bar 30 ; and one end of the third switch copper bar 14 away from the first switch body 11 is connected to the second copper bar 40 .

[0050] As a preferred embodiment, the first copper busbar 30 is fixedly connected to the first switch copper busbar 12 and the third switch copper busbar 14 respectively through fixing members 120 .

[0051] As a preferred embodiment, the second switch copper busbar 13 includes an integrally arranged first vertical portion 131, a connecting portion 132, and a second vertical portion 133. The first vertical portion 131 is perpendicularly arranged at one end of the connecting portion 132, and the second vertical portion 133 is perpendicularly arranged at the other end of the connecting portion 132. The first vertical portion 131 and the second vertical portion 133 extend in opposite directions. The connecting portion 132 is fixed to the first fixing plate 100, and the second vertical portion 133 is connected to the top of the first switch body 11. The first vertical portion 131 is connected to the fifth copper busbar 90. This arrangement allows the first vertical portion 131, the connecting portion 132, and the second vertical portion 133 to be located on different planes, facilitating connection and saving connection space. It also provides good connection stability and an overall aesthetic and neat appearance. Furthermore, it can effectively alleviate the problem of insufficient cable space affecting the electrical performance of the junction box.

[0052] As a preferred embodiment, the end of the third switch busbar 14 away from the first switch body 11 extends in the same direction as the connecting portion 132; the height of the end of the third switch busbar 14 near the first switch body 11 is greater than the height of the second vertical portion 133; and the length of the connecting portion 132 is greater than the length of the end of the third switch busbar 14 away from the first switch body 11. This arrangement facilitates connection and saves space, provides good connection stability, and creates an overall aesthetically pleasing and neat appearance. It also effectively alleviates the problem of insufficient cable space affecting the electrical performance of the combiner cabinet.

[0053] As a preferred embodiment, the fifth switch copper bar 16 includes an integrally arranged first straight portion 161, a parallel portion 162, and a second straight portion 163, wherein the first straight portion 161 is perpendicularly arranged at one end of the parallel portion 162, and the second straight portion 163 is perpendicularly arranged at the other end of the parallel portion 162, and the first straight portion 161 and the second straight portion 163 extend in opposite directions; the parallel portion 162 is fixed to the second fixing plate 110, and the second straight portion 163 is connected to the bottom of the first switch body 11.

[0054] In this embodiment, the second and fifth switch copper bars are integrated, facilitating assembly and conserving connection space. This improves assembly and disassembly efficiency while also effectively reducing the risk of cable bending and impacting electrical performance due to insufficient space. A 1600A, 1500VDC, 3P isolating switch can be used.

[0055] As a preferred embodiment, the second switch assembly 20 includes a second switch body 21, a sixth switch copper bar 22, a seventh switch copper bar 23, and an eighth switch copper bar 24 arranged on the top of the second switch body 21, and a ninth switch copper bar 25 and a tenth switch copper bar 26 arranged on the bottom of the second switch body 21;

[0056] The seventh switch copper bar 23 is arranged between the sixth switch copper bar 22 and the eighth switch copper bar 24. The sixth switch copper bar 22 is arranged close to the third switch copper bar 14. The ninth switch copper bar 25 is arranged close to the fifth switch copper bar 16. The tenth switch copper bar 26 is fixed on the second fixing plate 110.

[0057] As a preferred embodiment, one end of the first copper bar 30 is connected to the first switch copper bar 12, and the other end is connected to the sixth switch copper bar 22; one end of the second copper bar 40 is connected to the third switch copper bar 14, and the other end is connected to the eighth switch copper bar 24; one end of the fifth copper bar 90 is connected to the first vertical portion 131, and the other end is connected to the seventh switch copper bar 23.

[0058] As a preferred embodiment, the sixth switch copper bar 22 is symmetrically arranged with the first switch copper bar 12, and the sixth switch copper bar 22 has the same structure as the first switch copper bar 12;

[0059] The seventh switch copper bar 23 is symmetrically arranged with the second switch copper bar 13, and the seventh switch copper bar 23 and the second switch copper bar 13 have the same structure;

[0060] The eighth switch copper bar 24 is symmetrically arranged with the third switch copper bar 14, and the eighth switch copper bar 24 has the same structure as the third switch copper bar 14;

[0061] The ninth switch copper bar 25 is symmetrically arranged with the fourth switch copper bar 15, and the ninth switch copper bar 25 has the same structure as the fourth switch copper bar 15;

[0062] The tenth switch copper bar 26 is symmetrically arranged with the fifth switch copper bar 16 , and the tenth switch copper bar 26 and the fifth switch copper bar 16 have the same structure.

[0063] As a preferred embodiment, the combiner cabinet copper bar connection structure further includes a sixth copper bar 130 , one end of which is connected to the fifth switch copper bar 16 , and the other end of which is connected to the tenth switch copper bar 26 .

[0064] As a preferred embodiment, the combiner cabinet copper bar connection structure further includes a third fixing plate 140 arranged parallel to the second fixing plate 110 ; the fifth switch copper bar 16 and the tenth switch copper bar 26 are respectively fixed on the third fixing plate 140 .

[0065] As a preferred embodiment, the combiner cabinet copper bar connection structure also includes an epoxy board 150, one end of which is arranged on the top of the first switch body 11, and the other end is arranged on the top of the second switch body 21; the first switch copper bar 12, the second switch copper bar 13, the third switch copper bar 14, the sixth switch copper bar 22, the seventh switch copper bar 23 and the eighth switch copper bar 24 are all fixed on the epoxy board 150.

[0066] In the embodiment of the present application, both ends of the first fixing plate 100 , both ends of the second fixing plate 110 , both ends of the third fixing plate 140 , and both ends of the epoxy plate 150 are fixedly connected to the combiner cabinet A, respectively.

[0067] In this application, the first, third, sixth, and eighth switch copper bars are all L-shaped. The second, seventh, fifth, and tenth switch copper bars are all bent multi-segment copper bars. The first, second, fifth, and sixth copper bars are all strip-shaped copper bars. The third and fourth copper bars are U-shaped.

[0068] like Figures 4 and 5 As shown, in the embodiment of the present application, the junction cabinet (2500A-2 line (positive and negative) junction cabinet, size 850*1000*2000mm, protection level IP21. The line entry method is upper line entry and upper line outlet, and the bottom plate is designed with knock-out holes compatible with lower line outlet.) includes a cabinet body, and the guide rails A1 and fixed mounting plates A2 are symmetrically installed on both sides of the interior of the cabinet body. The first fixed plate, the second fixed plate and the third fixed plate are fixed to the guide rail A1 or fixed to the mounting plate A2 according to actual needs, with high space utilization. The copper bars of the copper bar connection structure of the junction cabinet support front maintenance, which is convenient for maintenance.

[0069] The combiner cabinet's top panel can be equipped with an optional wiring box for incoming cables, or it can be connected directly to the customer's wiring trough. The input cable connects to the third copper busbar, and the fifth copper busbar connects to the positive terminal of the customer's UPS. The negative terminal of the combiner cabinet connects to the fourth copper busbar, and the sixth copper busbar connects to the negative terminal of the customer's UPS. The combiner cabinet's top panel features corresponding locations for installed coils and knockout holes to accommodate top-in and top-out cables. A winding beam is installed inside the combiner cabinet to facilitate cable routing and securing, resulting in an aesthetically pleasing and simple overall design.

[0070] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A copper busbar connection structure for a combiner cabinet, characterized in that: It includes a first switch assembly, a second switch assembly, a first copper bar, a second copper bar, a first fuse, a second fuse, a third copper bar, a fourth copper bar, a fifth copper bar, a first fixing plate and a second fixing plate; One end of the first copper bar is connected to the first switch assembly, and the other end is connected to the second switch assembly; one end of the second copper bar is connected to the first switch assembly, and the other end is connected to the second switch assembly; the first fuse is connected to the first copper bar and the third copper bar respectively; the second fuse is connected to the second copper bar and the fourth copper bar respectively; one end of the fifth copper bar is connected to the first switch assembly, and the other end is connected to the second switch assembly; The first switch assembly is connected to the first fixing plate and the second fixing plate respectively; the second switch assembly is connected to the first fixing plate and the second fixing plate respectively.

2. The copper busbar connection structure of the combiner cabinet according to claim 1, characterized in that: The first switch assembly and the second switch assembly are arranged in parallel, and the first switch assembly and the second switch assembly have the same structure.

3. The copper busbar connection structure of the combiner cabinet according to claim 1, characterized in that: The first switch assembly includes a first switch body, a first switch copper bar, a second switch copper bar and a third switch copper bar arranged on the top of the first switch body, and a fourth switch copper bar and a fifth switch copper bar arranged on the bottom of the first switch body; The second switch copper bar is arranged between the first switch copper bar and the third switch copper bar, and the third switch copper bar and the fifth switch copper bar are both arranged close to the second switch assembly.

4. The copper busbar connection structure of the combiner cabinet according to claim 3, characterized in that: The first switch copper bar and the third switch copper bar are both L-shaped copper bars; the end of the first switch copper bar away from the first switch body and the end of the third switch copper bar away from the first switch body are extended in opposite directions; One end of the first switch copper bar away from the first switch body is connected to the first copper bar; one end of the third switch copper bar away from the first switch body is connected to the second copper bar; The first copper busbar is fixedly connected to the first switch copper busbar and the third switch copper busbar through fixing members.

5. The copper busbar connection structure of the combiner cabinet according to claim 3, characterized in that: The second switch copper busbar includes an integrally arranged first vertical portion, a connecting portion, and a second vertical portion, wherein the first vertical portion is perpendicularly arranged at one end of the connecting portion, and the second vertical portion is perpendicularly arranged at the other end of the connecting portion, and the first vertical portion and the second vertical portion extend in opposite directions; the connecting portion is fixed to the first fixing plate, and the second vertical portion is connected to the top of the first switch body; and the first vertical portion is connected to the fifth copper busbar.

6. The copper busbar connection structure of the combiner cabinet according to claim 5, characterized in that: The end of the third switch copper busbar away from the first switch body and the extension direction of the connecting portion are the same; the height of the end of the third switch copper busbar close to the first switch body is greater than the height of the second vertical portion; the length of the connecting portion is greater than the length of the end of the third switch copper busbar away from the first switch body.

7. The copper busbar connection structure of the combiner cabinet according to claim 5, characterized in that: The fifth switch copper bar includes an integrally arranged first straight portion, a parallel portion, and a second straight portion, wherein the first straight portion is perpendicularly arranged at one end of the parallel portion, and the second straight portion is perpendicularly arranged at the other end of the parallel portion, and the first straight portion and the second straight portion extend in opposite directions; the parallel portion is fixed to the second fixing plate, and the second straight portion is connected to the bottom of the first switch body.

8. The copper busbar connection structure of the combiner cabinet according to claim 7, characterized in that: The second switch assembly includes a second switch body, a sixth switch copper bar, a seventh switch copper bar, and an eighth switch copper bar arranged on the top of the second switch body, and a ninth switch copper bar and a tenth switch copper bar arranged on the bottom of the second switch body; The seventh switch copper bar is arranged between the sixth switch copper bar and the eighth switch copper bar, and the sixth switch copper bar is arranged close to the third switch copper bar; the ninth switch copper bar is arranged close to the fifth switch copper bar; and the tenth switch copper bar is fixed to the second fixing plate.

9. The copper busbar connection structure of the combiner cabinet according to claim 8, characterized in that: One end of the first copper bar is connected to the first switch copper bar, and the other end is connected to the sixth switch copper bar; one end of the second copper bar is connected to the third switch copper bar, and the other end is connected to the eighth switch copper bar; one end of the fifth copper bar is connected to the first vertical portion, and the other end is connected to the seventh switch copper bar; The sixth switch copper bar is symmetrically arranged with the first switch copper bar, and the sixth switch copper bar has the same structure as the first switch copper bar; The seventh switch copper bar is symmetrically arranged with the second switch copper bar, and the seventh switch copper bar has the same structure as the second switch copper bar; The eighth switch copper bar is symmetrically arranged with the third switch copper bar, and the eighth switch copper bar has the same structure as the third switch copper bar; The ninth switch copper bar is symmetrically arranged with the fourth switch copper bar, and the ninth switch copper bar has the same structure as the fourth switch copper bar; The tenth switch copper bar is symmetrically arranged with the fifth switch copper bar, and the tenth switch copper bar has the same structure as the fifth switch copper bar.

10. The copper busbar connection structure of the combiner cabinet according to claim 9, characterized in that: The combiner cabinet copper bar connection structure further includes a sixth copper bar, one end of which is connected to the fifth switch copper bar, and the other end of which is connected to the tenth switch copper bar; The combiner cabinet copper bar connection structure further includes a third fixing plate arranged parallel to the second fixing plate; the fifth switch copper bar and the tenth switch copper bar are respectively fixed to the third fixing plate; The junction box copper bar connection structure also includes an epoxy board, one end of which is arranged on the top of the first switch body, and the other end is arranged on the top of the second switch body; the first switch copper bar, the second switch copper bar, the third switch copper bar, the sixth switch copper bar, the seventh switch copper bar and the eighth switch copper bar are all fixed on the epoxy board.

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