Copper bar connecting structure of three-wire confluence cabinet

Abstract

The utility model provides a copper bar connecting structure of a three-wire confluence cabinet. The copper bar connecting structure comprises a switch, a first fixing plate, a first copper bar, a second copper bar, a first fuse, a third copper bar, a fourth copper bar, a fifth copper bar, an N-pole copper bar, a second fixing plate, a third fixing plate and an epoxy plate, the switch is arranged on the first fixing plate; the first copper bar, the fourth copper bar and the N-pole copper bar are respectively arranged at the top of the switch, and the fourth copper bar is arranged between the first copper bar and the N-pole copper bar; the first copper bar, the fourth copper bar and the N-pole copper bar are respectively arranged on the epoxy plate, and the N-pole copper bar is connected with the third fixing plate; one end, far away from the switch, of the first copper bar is connected with the second copper bar; the second copper bar is connected with the first fuse, and the first fuse is connected with the third copper bar; and the fifth copper bar is arranged at the bottom of the switch and is connected with the second fixing plate. The confluence cabinet area occupied by the cables can be reduced, the layout is reasonable, the occupied space is small, 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 for a three-wire junction 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 development of new energy vehicles, large-scale energy storage devices are becoming increasingly popular as backup power sources, addressing the need for critical equipment to maintain power. Energy storage combiner cabinets, a crucial component of energy storage battery systems, integrate the positive and negative wiring harnesses for each battery cluster and connect the cables to the PCS (Power Conversion System) components. Optimizing their functionality is crucial.

[0004] However, the internal structure layout of traditional energy storage combiner cabinets is imperfect, and the output cables are thick in diameter, which makes cable layout and routing difficult. In addition, the cabinet occupies a large area (especially in the width direction), which requires a larger size to meet the needs of use. This is not conducive to the movement and installation of the energy storage battery system, and also increases the cost of the entire cabinet. Utility Model Content

[0005] Based on this, an embodiment of the present invention provides a three-wire junction cabinet copper busbar connection structure, which aims to solve the problems of the existing junction cabinet, such as imperfect internal structure, thick output cables, difficult layout and routing, large occupied area, inconvenient installation and movement, inability to meet customer needs for use with a neutral line UPS, and increased cost of the entire cabinet.

[0006] To achieve the above-mentioned object, the embodiment of the present invention provides a three-wire combiner cabinet copper bar connection structure, which is applicable to the combiner cabinet and includes a switch, a first fixing plate, a first copper bar, a second copper bar, a first fuse, a third copper bar, a fourth copper bar, a fifth copper bar, an N-pole copper bar, a second fixing plate, a third fixing plate, and an epoxy plate;

[0007] The switch is disposed on the first fixing plate; the first copper bar, the fourth copper bar, and the N-pole copper bar are respectively disposed on the top of the switch, with the fourth copper bar disposed between the first copper bar and the N-pole copper bar; the first copper bar, the fourth copper bar, and the N-pole copper bar are respectively disposed on the epoxy board, and the N-pole copper bar is connected to the third fixing plate; an end of the first copper bar away from the switch is connected to the second copper bar; the second copper bar is connected to the first fuse, and the first fuse is connected to the third copper bar;

[0008] The fifth copper busbar is disposed at the bottom of the switch, and the fifth copper busbar is connected to the second fixing plate.

[0009] As a preferred embodiment, the length of the N-pole copper bar away from the end of the switch is greater than the length of the first copper bar away from the end of the switch.

[0010] As a preferred embodiment, the combiner cabinet copper bar connection structure further includes a fourth fixing plate, which is arranged close to the switch; and an end of the first copper bar close to the second copper bar is arranged on the fourth fixing plate.

[0011] As a preferred embodiment, the fourth fixing plate is arranged in parallel with the third fixing plate; the plane where the third fixing plate is located is the same plane as the plane where the fourth fixing plate is located.

[0012] As a preferred embodiment, the first copper bar is an "L"-shaped copper bar, one end of the first copper bar is connected to the switch, and the other end is connected to the second copper bar; two first copper bars are provided, and the two first copper bars are symmetrically arranged on the fourth fixed plate.

[0013] As a preferred embodiment, the second copper busbar includes an integrally arranged first parallel portion, an arc-shaped portion, and a second parallel portion, the arc-shaped portion being connected to the first parallel portion and the second parallel portion, respectively; the first parallel portion and the second parallel portion being fixed to the first copper busbar, respectively; and the arc-shaped portion being connected to the first fuse.

[0014] As a preferred embodiment, the top of the arc-shaped portion is arranged parallel to the first copper busbar, and a gap is provided between the arc-shaped portion and the first copper busbar.

[0015] As a preferred embodiment, two second copper bars are provided, the two second copper bars are symmetrically arranged, and the second copper bars are arranged in a one-to-one correspondence with the first copper bars.

[0016] As a preferred embodiment, two first fuses are provided, the two first fuses are arranged in parallel, and the first fuses are arranged in a one-to-one correspondence with the second copper busbars.

[0017] As a preferred embodiment, the third copper busbar is an L-shaped copper busbar; two third copper busbars are provided, and the two third copper busbars are symmetrically arranged.

[0018] As a preferred embodiment, the fifth 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, 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 second fixing plate, and the second vertical portion is connected to the bottom of the switch.

[0019] As a preferred embodiment, two fifth copper bars are provided, and the two fifth copper bars are arranged in parallel on the second fixing plate.

[0020] As a preferred embodiment, the combiner cabinet copper bar connection structure further includes a sixth copper bar, which is connected to the first vertical portion, and the sixth copper bar is arranged in a one-to-one correspondence with the first vertical portion.

[0021] As a preferred embodiment, the sixth copper bar is a strip-shaped copper bar; one end of the sixth copper bar is connected to the first vertical portion, and the other end is fixed to the combiner cabinet.

[0022] As a preferred embodiment, the combiner cabinet copper bar connection structure further includes a seventh copper bar, which is arranged at the bottom of the switch; the seventh copper bar is a "U"-shaped copper bar, and the seventh copper bar is arranged adjacent to the second vertical portion.

[0023] As a preferred embodiment, the fourth copper bar and the N-pole copper bar are arranged between the two first copper bars; the fourth copper bar is vertically connected to the eighth copper bar; the fourth copper bar and the eighth copper bar are both strip-shaped copper bars.

[0024] As a preferred embodiment, the N-pole copper bar is an "L"-shaped copper bar, one end of the N-pole copper bar is connected to the switch, and the other end is connected to the ninth copper bar; the end of the N-pole copper bar close to the ninth copper bar is fixed to the third fixed plate.

[0025] As a preferred embodiment, a second fuse is provided on the ninth copper bar, and a tenth copper bar is provided on the second fuse; the ninth copper bar and the second copper bar have the same structure.

[0026] As a preferred embodiment, the first fixing plate is arranged in an "I" shape, and the switch is arranged at the center of the first fixing plate; the end corners of the first fixing plate are fixed to the combiner cabinet.

[0027] Compared with the existing technology, the structure of the present application has the following technical effects: Through the structure of the present application, the area of ​​the junction cabinet occupied by the cables can be effectively reduced, thereby effectively reducing the occupied area of ​​the junction cabinet. The present application can achieve a reasonable layout of the various electrical components in the cabinet, optimize the cabinet, and while improving the overall aesthetics and convenience of the cabinet, reduce the volume of the cabinet, reduce the floor space, meet the use requirements of space-constrained places, and effectively enhance the safety and reliability of the cabinet during use. Through the present application, the copper busbars can be reasonably arranged, and the reasonable distribution of the cables can be achieved, which can effectively optimize the wiring space, facilitate installation and maintenance, and meet the customer's use requirements for UPS with a neutral line. In addition, through the structure of the present application, 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

[0028] 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.

[0029] Figure 1 This is a structural diagram of the copper busbar connection structure of a three-wire combiner cabinet according to an embodiment of the present invention;

[0030] Figure 2 for Figure 1 A schematic diagram of the copper busbar connection structure of the three-wire combiner cabinet from another angle;

[0031] Figure 3 for Figure 1 Schematic diagram of the copper busbar connection structure of the three-wire combiner cabinet in use;

[0032] Figure 4 It is a structural diagram of the combiner cabinet of this application.

[0033] 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

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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, effectively save installation time, and facilitate subsequent maintenance.

[0040] Specifically, such as Figures 1 to 2As shown, an embodiment of the present invention provides a three-wire combiner cabinet copper busbar connection structure, which is applicable to combiner cabinet A, including a switch 10, a first fixing plate 20, a first copper busbar 30, a second copper busbar 40, a first fuse 50, a third copper busbar 60, a fourth copper busbar 70, a fifth copper busbar 80, an N-pole copper busbar 90, a second fixing plate 100, a third fixing plate 110 and an epoxy plate 120;

[0041] The switch 10 is disposed on the first fixing plate 20; the first copper bar 30, the fourth copper bar 70, and the N-pole copper bar 90 are respectively disposed on the top of the switch 10, with the fourth copper bar 70 disposed between the first copper bar 30 and the N-pole copper bar 90; the first copper bar 30, the fourth copper bar 70, and the N-pole copper bar 90 are respectively disposed on the epoxy board 120, and the N-pole copper bar 90 is connected to the third fixing plate 110; the end of the first copper bar 30 away from the switch 10 is connected to the second copper bar 40; the second copper bar 40 is connected to the first fuse 50, and the first fuse 50 is connected to the third copper bar 60;

[0042] The fifth copper busbar 80 is disposed at the bottom of the switch 10 , and the fifth copper busbar 80 is connected to the second fixing plate 100 .

[0043] As a preferred embodiment, the length of the N-pole copper bar 90 away from the switch 10 is greater than the length of the first copper bar 30 away from the switch 10 .

[0044] As a preferred embodiment, the combiner cabinet copper bar connection structure further includes a fourth fixing plate 130 , which is disposed near the switch 10 ; an end of the first copper bar 30 close to the second copper bar 40 is disposed on the fourth fixing plate 130 .

[0045] As a preferred embodiment, the fourth fixing plate 130 is arranged in parallel with the third fixing plate 110 ; the plane where the third fixing plate 110 is located is the same plane as the plane where the fourth fixing plate 130 is located.

[0046] As a preferred embodiment, the first copper bar 30 is an "L"-shaped copper bar, one end of the first copper bar 30 is connected to the switch 10, and the other end is connected to the second copper bar 40; two first copper bars 30 are provided, and the two first copper bars 30 are symmetrically arranged on the fourth fixing plate 130.

[0047] As a preferred embodiment, the second copper busbar 40 includes an integrally formed first parallel portion 41, an arcuate portion 42, and a second parallel portion 43. The arcuate portion 42 is connected to the first parallel portion 41 and the second parallel portion 43, respectively. The first parallel portion 41 and the second parallel portion 43 are respectively fixed to the first copper busbar 30. The arcuate portion 42 is connected to the first fuse 50. This arrangement allows the first parallel portion 41, the arcuate portion 42, and the second parallel portion 43 to be located on different planes, facilitating connection and saving space. It also provides better connection stability and heat dissipation. Furthermore, it effectively alleviates the problem of insufficient cable space affecting the electrical performance of the combiner cabinet.

[0048] As a preferred embodiment, the top of the arc-shaped portion 42 is arranged parallel to the first copper bar 30, and a gap B is provided between the arc-shaped portion 42 and the first copper bar 30. This arrangement can further ensure the heat dissipation effect between the first copper bar and the second copper bar, making the heat dissipation faster and ensuring the stability of the copper bar operation.

[0049] As a preferred embodiment, two second copper bars 40 are provided, the two second copper bars 40 are symmetrically arranged, and the second copper bars 40 are arranged in a one-to-one correspondence with the first copper bars 30.

[0050] As a preferred embodiment, two first fuses 50 are provided, the two first fuses 50 are arranged in parallel, and the first fuses 50 are arranged in a one-to-one correspondence with the second copper busbars 40 .

[0051] As a preferred embodiment, the third copper busbar 60 is an L-shaped copper busbar; two third copper busbars 60 are provided, and the two third copper busbars 60 are symmetrically arranged.

[0052] As a preferred embodiment, the fifth copper busbar 80 includes an integrally formed first vertical portion 81, a connecting portion 82, and a second vertical portion 83. The first vertical portion 81 is perpendicularly disposed at one end of the connecting portion 82, and the second vertical portion 83 is perpendicularly disposed at the other end of the connecting portion 82, with the first vertical portion 81 and the second vertical portion 83 extending in opposite directions. The connecting portion 82 is fixed to the second fixing plate 100, and the second vertical portion 83 is connected to the bottom of the switch 10. This arrangement positions the first vertical portion 81, the connecting portion 82, and the second vertical portion 83 on different planes, facilitating connection and conserving space. It also provides good connection stability and an overall aesthetically pleasing and neat appearance. Furthermore, it effectively alleviates the problem of insufficient cable space affecting the electrical performance of the combiner cabinet.

[0053] As a preferred embodiment, two fifth copper bars 80 are provided, and the two fifth copper bars 80 are arranged in parallel on the second fixing plate 100 .

[0054] In this embodiment, the second and fifth copper bars are integrated, facilitating assembly and conserving connection space. This improves assembly and disassembly efficiency while also minimizing the risk of cable bending and impacting electrical performance due to insufficient space. A 1250A, 1000VDC, 4P isolating switch can be used.

[0055] In this application, the connector 82 extends horizontally in the same direction as the end of the first copper bar near the second copper bar, and its length is greater than the end of the first copper bar near the second copper bar. This arrangement facilitates connection and saves space, provides good connection stability, and creates a neat and aesthetically pleasing overall appearance. It also effectively alleviates the problem of insufficient cable space affecting the electrical performance of the combiner cabinet.

[0056] As a preferred embodiment, the combiner cabinet copper bar connection structure further includes a sixth copper bar 140 , which is connected to the first vertical portion 81 , and the sixth copper bar 140 is disposed in a one-to-one correspondence with the first vertical portion 81 .

[0057] As a preferred embodiment, the sixth copper bar 140 is a strip-shaped copper bar; one end of the sixth copper bar 140 is connected to the first vertical portion 81 , and the other end is fixed to the combiner cabinet A.

[0058] As a preferred embodiment, the combiner cabinet copper bar connection structure further includes a seventh copper bar 150, which is arranged at the bottom of the switch 10; the seventh copper bar 150 is a "U"-shaped copper bar, and the seventh copper bar 150 is arranged adjacent to the second vertical portion 83.

[0059] As a preferred embodiment, the fourth copper bar 70 and the N-pole copper bar 90 are arranged between the two first copper bars 30; the fourth copper bar 70 is vertically connected to the eighth copper bar 160; the fourth copper bar 70 and the eighth copper bar 160 are both strip-type copper bars.

[0060] As a preferred embodiment, the N-pole copper bar 90 is an "L"-shaped copper bar, one end of the N-pole copper bar 90 is connected to the switch 10, and the other end is connected to the ninth copper bar 160; the end of the N-pole copper bar 90 close to the ninth copper bar 160 is fixed to the third fixing plate 110.

[0061] As a preferred embodiment, a second fuse 170 is provided on the ninth copper bar 160 , and a tenth copper bar 180 is provided on the second fuse 170 ; the ninth copper bar 160 and the second copper bar 40 have the same structure.

[0062] As a preferred embodiment, the first fixing plate 20 is arranged in an "I" shape, and the switch 10 is arranged at the center of the first fixing plate 20; the end corners of the first fixing plate 20 are fixed to the combiner cabinet A.

[0063] As a preferred embodiment, both ends of the second fixing plate 100 , both ends of the third fixing plate 110 , the epoxy plate 120 , and both ends of the fourth fixing plate 130 are fixedly connected to the combiner cabinet A, respectively.

[0064] like Figures 3 and 4 As shown, in the embodiment of the present application, the junction cabinet (1250A-3 line (positive, N, negative) junction cabinet, size is 600*1000*2300mm, protection level is IP21. The line entry mode is upper entry and upper outlet, and the bottom plate is designed with a knock-out hole compatible with the lower outlet.) includes a cabinet body, the front of the cabinet body is hinged with a front door, the back of the cabinet body is installed with a rear door, the side of the cabinet body is installed with a side door, the upper part of the interior of the cabinet body is provided with a junction bin, the lower part of the interior of the cabinet body is provided with a fixed installation area, the inner sides of the cabinet body (1) are symmetrically provided with guide rails A1 and fixed installation plates A2, the first fixed plate, the second fixed plate, the third fixed plate, the fourth fixed plate and the epoxy plate are fixed to the guide rails A1 or fixed to the installation plate A2 according to actual needs, so that the copper busbar connection structure of the three-line junction cabinet of the present application is partially accommodated in the junction bin and partially accommodated in the fixed installation area, with high space utilization. The copper busbars of the three-wire combiner cabinet copper busbar connection structure support front maintenance, which is convenient for maintenance.

[0065] 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 top panel features corresponding locations for installed coils and knockout holes to accommodate top-in and top-out cables. Internal winding beams facilitate cable routing and securing, resulting in an aesthetically pleasing and simple design.

[0066] 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 three-wire combiner cabinet copper bar connection structure, suitable for combiner cabinet, characterized in that: It includes a switch, a first fixing plate, a first copper bar, a second copper bar, a first fuse, a third copper bar, a fourth copper bar, a fifth copper bar, an N-pole copper bar, a second fixing plate, a third fixing plate and an epoxy plate; The switch is arranged on the first fixing plate; The first copper bar, the fourth copper bar, and the N-pole copper bar are respectively arranged on the top of the switch, and the fourth copper bar is arranged between the first copper bar and the N-pole copper bar; the first copper bar, the fourth copper bar, and the N-pole copper bar are respectively arranged on the epoxy board, and the N-pole copper bar is connected to the third fixing plate; the end of the first copper bar away from the switch is connected to the second copper bar; the second copper bar is connected to the first fuse, and the first fuse is connected to the third copper bar; The fifth copper busbar is disposed at the bottom of the switch, and the fifth copper busbar is connected to the second fixing plate.

2. The three-wire combiner cabinet copper bar connection structure according to claim 1, characterized in that: The length of the N-pole copper bar away from the switch is greater than the length of the first copper bar away from the switch.

3. The three-wire combiner cabinet copper bar connection structure according to claim 1, characterized in that: The copper bar connection structure of the combiner cabinet further includes a fourth fixing plate, which is arranged close to the switch; an end of the first copper bar close to the second copper bar is arranged on the fourth fixing plate; The fourth fixing plate is arranged in parallel with the third fixing plate; the plane where the third fixing plate is located is the same plane as the plane where the fourth fixing plate is located.

4. The three-wire combiner cabinet copper bar connection structure according to claim 3, characterized in that: The first copper bar is an L-shaped copper bar, one end of which is connected to the switch, and the other end is connected to the second copper bar; two first copper bars are provided, and the two first copper bars are symmetrically arranged on the fourth fixing plate; The fourth copper bar and the N-pole copper bar are arranged between the two first copper bars; the fourth copper bar is vertically connected to the eighth copper bar; the fourth copper bar and the eighth copper bar are both strip-shaped copper bars.

5. The three-wire combiner cabinet copper bar connection structure according to claim 1, characterized in that: The second copper busbar includes an integrally arranged first parallel portion, an arc portion, and a second parallel portion, wherein the arc portion is connected to the first parallel portion and the second parallel portion respectively; the first parallel portion and the second parallel portion are respectively fixed to the first copper busbar; and the arc portion is connected to the first fuse.

6. The three-wire combiner cabinet copper bar connection structure according to claim 5, characterized in that: The top of the arc-shaped portion is arranged parallel to the first copper busbar, and a gap is arranged between the arc-shaped portion and the first copper busbar.

7. The three-wire combiner cabinet copper bar connection structure according to claim 1, characterized in that: There are two second copper bars, which are symmetrically arranged and correspond one to one with the first copper bars. There are two first fuses, which are arranged in parallel, and the first fuses are arranged in a one-to-one correspondence with the second copper busbars; The third copper busbar is an L-shaped copper busbar; two third copper busbars are provided, and the two third copper busbars are symmetrically arranged.

8. The three-wire combiner cabinet copper bar connection structure according to claim 1, characterized in that: The fifth copper busbar includes an integrally formed 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 second fixing plate, and the second vertical portion is connected to the bottom of the switch; There are two fifth copper bars, and the two fifth copper bars are arranged in parallel on the second fixing plate; The combiner cabinet copper bar connection structure further includes a sixth copper bar, the sixth copper bar is connected to the first vertical portion, and the sixth copper bar is arranged in a one-to-one correspondence with the first vertical portion; The sixth copper bar is a strip-shaped copper bar; one end of the sixth copper bar is connected to the first vertical portion, and the other end is fixed to the combiner cabinet; The combiner cabinet copper bar connection structure further includes a seventh copper bar, which is arranged at the bottom of the switch; the seventh copper bar is a "U"-shaped copper bar, and the seventh copper bar is arranged adjacent to the second vertical portion.

9. The three-wire combiner cabinet copper bar connection structure according to claim 1, characterized in that: The N-pole copper bar is an "L"-shaped copper bar, one end of which is connected to the switch and the other end is connected to the ninth copper bar; the end of the N-pole copper bar close to the ninth copper bar is fixed to the third fixed plate.

10. The three-wire combiner cabinet copper bar connection structure according to claim 9, characterized in that: The ninth copper bar is provided with a second fuse, and the tenth copper bar is provided on the second fuse; the ninth copper bar has the same structure as the second copper bar; The first fixing plate is arranged in an "I" shape, and the switch is arranged at the center of the first fixing plate; the end corners of the first fixing plate are fixed to the junction cabinet.

Images