Copper bar connecting structure of confluence cabinet

Abstract

The utility model provides a confluence cabinet copper bar connecting structure which is suitable for a confluence cabinet and comprises a switch, a first fixing plate, a first copper bar, a second copper bar, a fuse, a third copper bar, a fourth copper bar, a fifth copper bar, a second fixing plate and a third fixing plate. The switch is arranged on the first fixing plate; the first copper bar and the fourth copper bar are respectively arranged at the top of the switch, and the first 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 fuse, and the fuse is connected with the third copper bar; and the fifth copper bar is arranged at the bottom of the switch, and the fifth copper bar is connected with the second fixing plate. According to the application, the area of the confluence cabinet occupied by the cable can be effectively reduced, the reasonable layout of each electrical element in the cabinet body can be realized, the volume of the cabinet body is reduced, the occupied space is small, and the use safety and reliability are relatively good.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a copper busbar connection structure for a combiner cabinet. Background Technology

[0002] The combiner cabinet is an important component of an energy storage system, primarily responsible for facilitating the exchange between the AC and DC sides. Charging and discharging of the energy storage system occur through the combiner cabinet. Specifically, the power lines from the cluster management box converge at the combiner cabinet, which is then connected to the UPS. The UPS is in turn connected to an external power source or load, allowing the energy storage system to exchange energy with the outside world through this pathway.

[0003] However, the internal structure of traditional energy storage combiner cabinets is not perfect. The output cables are thick, which makes cable routing difficult and occupies a large area of ​​the combiner cabinet (especially in the width direction). This requires the combiner cabinet to be of a larger size to meet the usage requirements, which is not conducive to the movement and installation of energy storage battery systems and also increases the cost of the entire cabinet. Utility Model Content

[0004] Based on this, the present invention provides a copper busbar connection structure for a combiner cabinet, which aims to solve the problems of imperfect internal structure of existing combiner cabinets, thick output cables, difficult layout and wiring, large area occupation, inconvenience for installation and relocation, and increased cost of the entire cabinet.

[0005] To achieve the above objectives, this utility model provides a busbar connection structure for a combiner cabinet, applicable to combiner cabinets, including a switch, a first fixing plate, a first copper busbar, a second copper busbar, a fuse, a third copper busbar, a fourth copper busbar, a fifth copper busbar, a second fixing plate, and a third fixing plate;

[0006] The switch is mounted on the first fixed plate; the first copper busbar and the fourth copper busbar are respectively mounted on the top of the switch, and the first copper busbar is connected to the third fixed plate; the end of the first copper busbar away from the switch is connected to the second copper busbar; the second copper busbar is connected to the fuse, and the fuse is connected to the third copper busbar;

[0007] The fifth copper busbar is disposed at the bottom of the switch and is connected to the second fixing plate.

[0008] In a preferred embodiment, the first copper busbar is an L-shaped copper busbar, one end of which is connected to the switch and the other end is connected to the second copper busbar; two first copper busbars are provided, and the two first copper busbars are symmetrically arranged on the third fixing plate.

[0009] In a preferred embodiment, the fourth copper busbar is an inverted "U" shaped copper busbar, and the fourth copper busbar is disposed between the two first copper busbars.

[0010] In a preferred embodiment, the busbar connection structure of the combiner cabinet further includes a fourth fixing plate, which is disposed near the switch; one end of the first copper busbar near the second copper busbar is disposed on the fourth fixing plate.

[0011] In a preferred embodiment, the fourth fixing plate is arranged parallel to the third fixing plate; the plane on which the third fixing plate is located is the same plane as the plane on which the fourth fixing plate is located.

[0012] In a preferred embodiment, the second copper busbar includes an integrally formed first parallel portion, an arc-shaped portion, and a second parallel portion, wherein the arc-shaped 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-shaped portion is connected to the fuse.

[0013] In 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.

[0014] In a preferred embodiment, there are two second copper busbars, which are symmetrically arranged and correspond one-to-one with the first copper busbar.

[0015] In a preferred embodiment, two fuses are provided, which are arranged in parallel and correspond one-to-one with the second copper busbar.

[0016] In a preferred embodiment, the third copper busbar is an L-shaped copper busbar; there are two third copper busbars, which are arranged symmetrically.

[0017] In a preferred embodiment, the fifth copper busbar includes an integrally formed first vertical portion, a connecting portion, and a second vertical portion. The first vertical portion is vertically disposed at one end of the connecting portion, and the second vertical portion is vertically disposed at the other end of the connecting portion. 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.

[0018] In a preferred embodiment, two fifth copper busbars are provided, and the two fifth copper busbars are arranged in parallel on the second fixing plate.

[0019] In a preferred embodiment, the busbar connection structure of the combiner cabinet further includes a sixth copper busbar, which is connected to the first vertical part, and the sixth copper busbar is arranged in a one-to-one correspondence with the first vertical part.

[0020] In a preferred embodiment, the sixth copper busbar is a strip-shaped copper busbar; one end of the sixth copper busbar is connected to the first vertical part, and the other end is fixed to the combiner cabinet.

[0021] In a preferred embodiment, the busbar connection structure of the combiner cabinet further includes a seventh copper busbar, which is disposed at the bottom of the switch; the seventh copper busbar is a U-shaped copper busbar and is disposed adjacent to the second vertical part.

[0022] In a preferred embodiment, the first fixing plate is arranged in an "I" shape, and the switch is located at the center of the first fixing plate; the end corners of the first fixing plate are fixed to the combiner cabinet.

[0023] Compared to existing technologies, the structure of this application has the following technical advantages: Firstly, this structure effectively reduces the area occupied by cables in the combiner cabinet, thereby reducing the cabinet's footprint. Secondly, this application enables a rational layout of various electrical components within the cabinet, optimizing the cabinet design and improving its overall aesthetics and convenience while reducing its size and footprint, meeting the requirements of space-constrained environments. It also effectively enhances the safety and reliability of the cabinet during use. Thirdly, this application allows for a rational layout of copper busbars, achieving a reasonable distribution of cables, effectively optimizing cabling space, facilitating installation and maintenance, and meeting the requirements of customers using UPS systems without a neutral cable. Furthermore, the structure of this application effectively improves the heat dissipation of each copper busbar and fuse, facilitating the installation and maintenance of various components within the combiner cabinet. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the copper busbar connection structure of the combiner cabinet according to an embodiment of the present invention;

[0026] Figure 2 for Figure 1 A schematic diagram of the busbar connection structure of the combiner cabinet from another angle;

[0027] Figure 3 for Figure 1 A schematic diagram of the copper busbar connection structure of the combiner cabinet in use;

[0028] Figure 4 This is a schematic diagram of the combiner cabinet in this application.

[0029] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, top, bottom, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] It should be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0034] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0035] This application features a simple structure, a reasonable and compact copper busbar layout, and straightforward connections, making it easy to implement, efficient in assembly, and cost-effective in installation. It optimizes the internal space layout of the combiner cabinet, resulting in a pleasing and simple overall appearance, convenient maintenance, and suitability for mass production. It effectively solves the problem of optimizing the internal space layout of combiner cabinets. Furthermore, it effectively improves the electrical performance of combiner cabinets affected by insufficient cable space, enhances space utilization, saves installation time, and facilitates subsequent maintenance.

[0036] Specifically, such as Figures 1 to 2 As shown, one embodiment of this utility model provides a copper busbar connection structure for a combiner cabinet, 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 fuse 50, a third copper busbar 60, a fourth copper busbar 70, a fifth copper busbar 80, a second fixing plate 90, and a third fixing plate 100.

[0037] The switch 10 is disposed on the first fixing plate 20; the first copper busbar 30 and the fourth copper busbar 70 are respectively disposed on the top of the switch 10, and the first copper busbar 30 is connected to the third fixing plate 100; the end of the first copper busbar 30 away from the switch 10 is connected to the second copper busbar 40; the second copper busbar 40 is connected to the fuse 50, and the fuse 50 is connected to the third copper busbar 60;

[0038] 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 90.

[0039] In a preferred embodiment, the first copper busbar 30 is an L-shaped copper busbar, one end of which is connected to the switch 10 and the other end is connected to the second copper busbar 40; two first copper busbars 30 are provided, and the two first copper busbars 30 are symmetrically arranged on the third fixing plate 100.

[0040] In a preferred embodiment, the fourth copper busbar 70 is an inverted "U" shaped copper busbar, and the fourth copper busbar 70 is disposed between the two first copper busbars 30.

[0041] In a preferred embodiment, the busbar connection structure of the combiner cabinet further includes a fourth fixing plate 110, which is disposed near the switch 10; one end of the first copper busbar 30 near the second copper busbar 40 is disposed on the fourth fixing plate 110.

[0042] Preferably, the fourth fixing plate 110 is arranged parallel to the third fixing plate 100; the plane where the third fixing plate 100 is located and the plane where the fourth fixing plate 110 is located are the same plane.

[0043] In a preferred embodiment, the second copper busbar 40 includes an integrally formed first parallel portion 41, an arc-shaped portion 42, and a second parallel portion 43. The arc-shaped portion 42 is connected to both the first parallel portion 41 and the second parallel portion 43. The first parallel portion 41 and the second parallel portion 43 are fixed to the first copper busbar 30. The arc-shaped portion 42 is connected to the fuse 50. This arrangement allows the first parallel portion 41, the arc-shaped portion 42, and the second parallel portion 43 to be located on different planes, facilitating connection and saving connection space. It also provides better connection stability and heat dissipation. Furthermore, it effectively improves the problem of insufficient cable space affecting the electrical performance of the busbar cabinet.

[0044] In a preferred embodiment, the top of the arc-shaped portion 42 is arranged parallel to the first copper busbar 30, and a gap B is provided between the arc-shaped portion 42 and the first copper busbar 30. This arrangement can further ensure the heat dissipation effect between the first and second copper busbars, resulting in faster heat dissipation and ensuring the stability of the copper busbar operation.

[0045] In a preferred embodiment, there are two second copper busbars 40, which are symmetrically arranged and correspond one-to-one with the first copper busbar 30.

[0046] In a preferred embodiment, two fuses 50 are provided, which are arranged in parallel and correspond one-to-one with the second copper busbar 40.

[0047] In a preferred embodiment, the third copper busbar 60 is an L-shaped copper busbar; there are two third copper busbars 60, and the two third copper busbars 60 are arranged symmetrically.

[0048] In 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 vertically disposed at one end of the connecting portion 82, and the second vertical portion 83 is vertically 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 90, and the second vertical portion 83 is connected to the bottom of the switch 10. This arrangement allows the first vertical portion 81, the connecting portion 82, and the second vertical portion 83 to be located on different planes, facilitating connection and saving connection space, while also providing good connection stability and an overall neat and aesthetically pleasing appearance. Simultaneously, it effectively improves the problem of insufficient cable space affecting the electrical performance of the busbar cabinet.

[0049] In a preferred embodiment, two fifth copper busbars 80 are provided, and the two fifth copper busbars 80 are arranged in parallel on the second fixing plate 90.

[0050] In this embodiment, both the second and fifth copper busbars are integrated, facilitating assembly and saving connection space, improving assembly and disassembly efficiency, and effectively reducing the risk of cable bending due to insufficient space, which could affect electrical performance. A 1250A-1000VDC-4P disconnector switch can be selected.

[0051] In this application, the connecting part 82 extends horizontally in the same direction as the end of the first copper busbar near the second copper busbar, and the length of the connecting part 82 is greater than the length of the end of the first copper busbar near the second copper busbar. This arrangement facilitates connection, saves connection space, provides good connection stability, and results in a neat and aesthetically pleasing overall appearance. Simultaneously, it effectively addresses the problem of insufficient cable space affecting the electrical performance of the combiner cabinet.

[0052] In a preferred embodiment, the busbar connection structure of the combiner cabinet further includes a sixth copper busbar 120, which is connected to the first vertical part 81, and the sixth copper busbar 120 and the first vertical part 81 are arranged in a one-to-one correspondence.

[0053] In a preferred embodiment, the sixth copper busbar 120 is a strip-shaped copper busbar; one end of the sixth copper busbar 120 is connected to the first vertical part 81, and the other end is fixed to the combiner cabinet A.

[0054] In a preferred embodiment, the busbar connection structure of the combiner cabinet further includes a seventh copper busbar 130, which is disposed at the bottom of the switch 10; the seventh copper busbar 130 is a U-shaped copper busbar, and the seventh copper busbar 130 is disposed adjacent to the second vertical part 83.

[0055] In a preferred embodiment, the first fixing plate 20 is arranged in an "I" shape, and the switch 10 is located 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.

[0056] In a preferred embodiment, the two ends of the second fixing plate 100, the two ends of the third fixing plate 100, and the two ends of the fourth fixing plate 110 are respectively fixedly connected to the combiner cabinet A.

[0057] like Figures 3 to 4 As shown in the embodiment of this application, the combiner cabinet (a 1250A-2 line (positive and negative) combiner cabinet with dimensions of 600*1000*2300mm and a protection level of IP21. The incoming line method is top incoming and top outgoing, and the bottom plate is designed with knock-out holes to accommodate bottom outgoing) 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, and the side of the cabinet body is installed with a side door. The upper part of the cabinet body is provided with a combiner compartment, and the lower part of the cabinet body is provided with a fixed installation area. The two sides of the cabinet body (1) are symmetrically equipped with guide rails A1 and fixed installation plates A2. The first fixed plate, the second fixed plate, the third fixed plate, and the fourth fixed plate are fixed to the guide rails A1 or the installation plates A2 according to actual needs, so that part of the copper busbar connection structure of the combiner cabinet of this application is accommodated in the combiner compartment and part is accommodated in the fixed installation area, which has a high space utilization rate. Each copper busbar of the combiner cabinet copper busbar connection structure supports front maintenance, which is convenient for maintenance.

[0058] The top of the combiner cabinet can be equipped with a cable tray for cable entry, or it can be directly connected to the customer's cable tray. Input cables connect to one of the third copper busbars, and the sixth copper busbar connects to the customer's UPS. The negative terminal of the combiner cabinet connects to another third copper busbar. The top panel of the combiner cabinet has corresponding mounting coils and knock-out holes to accommodate top-entry and top-outlet cables. The combiner cabinet has internal cable winding beams for easy cable routing and securing, resulting in a neat and aesthetically pleasing design.

[0059] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A copper busbar connection structure for a combiner cabinet, suitable for combiner cabinets, characterized in that, It includes a switch, a first fixing plate, a first copper busbar, a second copper busbar, a fuse, a third copper busbar, a fourth copper busbar, a fifth copper busbar, a second fixing plate, and a third fixing plate; The switch is mounted on the first fixed plate; the first copper busbar and the fourth copper busbar are respectively mounted on the top of the switch, and the first copper busbar is connected to the third fixed plate; the end of the first copper busbar away from the switch is connected to the second copper busbar; the second copper busbar is connected to the fuse, and the fuse is connected to the third copper busbar; The fifth copper busbar is disposed at the bottom of the switch and is connected to the second fixing plate.

2. The busbar connection structure of the combiner cabinet according to claim 1, characterized in that, The first copper busbar is an "L"-shaped copper busbar, with one end connected to the switch and the other end connected to the second copper busbar; there are two first copper busbars, which are symmetrically arranged on the third fixing plate.

3. The busbar connection structure of the combiner cabinet according to claim 2, characterized in that, The fourth copper busbar is an inverted "U" shaped copper busbar, and the fourth copper busbar is disposed between the two first copper busbars.

4. The busbar connection structure of the combiner cabinet according to claim 1, characterized in that, The busbar connection structure of the combiner cabinet also includes a fourth fixing plate, which is located near the switch; one end of the first copper busbar near the second copper busbar is located on the fourth fixing plate. The fourth fixing plate is arranged parallel to the third fixing plate; the plane on which the third fixing plate is located is the same plane as the plane on which the fourth fixing plate is located.

5. The busbar connection structure of the combiner cabinet according to claim 1, characterized in that, The second copper busbar includes an integrally formed first parallel portion, an arc-shaped portion, and a second parallel portion. The arc-shaped portion is connected to the first parallel portion and the second parallel portion, respectively. The first parallel portion and the second parallel portion are fixed to the first copper busbar, respectively. The arc-shaped portion is connected to the fuse.

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

7. The busbar connection structure of the combiner cabinet according to claim 1, characterized in that, There are two second copper busbars, which are arranged symmetrically, and each second copper busbar corresponds to one of the first copper busbars. There are two fuses, which are arranged in parallel and correspond one-to-one with the second copper busbar. The third copper busbar is an "L"-shaped copper busbar; there are two third copper busbars, which are arranged symmetrically.

8. The busbar connection structure of the combiner cabinet according to claim 1, characterized in that, The fifth copper busbar includes an integrally formed first vertical part, a connecting part, and a second vertical part. The first vertical part is vertically disposed at one end of the connecting part, and the second vertical part is vertically disposed at the other end of the connecting part. The first vertical part and the second vertical part extend in opposite directions. The connecting part is fixed to the second fixing plate, and the second vertical part is connected to the bottom of the switch. There are two fifth copper busbars, which are arranged in parallel on the second fixing plate.

9. The busbar connection structure of the combiner cabinet according to claim 8, characterized in that, The busbar connection structure of the combiner cabinet also includes a sixth copper busbar, which is connected to the first vertical part, and the sixth copper busbar is arranged in a one-to-one correspondence with the first vertical part; The sixth copper busbar is a strip-shaped copper busbar; one end of the sixth copper busbar is connected to the first vertical part, and the other end is fixed to the combiner cabinet.

10. The busbar connection structure of the combiner cabinet according to claim 8, characterized in that, The busbar connection structure of the combiner cabinet also includes a seventh copper busbar, which is located at the bottom of the switch; the seventh copper busbar is a U-shaped copper busbar and is located adjacent to the second vertical part; The first fixing plate is arranged in an "I" shape, and the switch is located at the center of the first fixing plate; the end corners of the first fixing plate are fixed to the combiner cabinet.

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