CN219477265U - Power distribution cabinet and energy storage system - Google Patents

Abstract

The utility model provides a power distribution cabinet and an energy storage system, wherein the power distribution cabinet comprises: a cabinet body; an alternating current power distribution part which is arranged in the cabinet body; the direct current converging part is arranged in the cabinet body; the high-voltage boxes are arranged in the cabinet body, are arranged close to one side of the cabinet body, are stacked and distributed from the top of the cabinet body to the bottom of the cabinet body, and are positioned between the alternating current power distribution part and the high-voltage boxes; the copper bar assembly comprises a switching copper bar, and a plurality of high-voltage boxes are connected with the direct current converging part through the switching copper bar.

Description

Power distribution cabinet and energy storage system

technical field

The utility model relates to the technical field of power distribution equipment, in particular to a power distribution cabinet and an energy storage system.

Background technique

In related technologies, in the container energy storage scheme of the energy storage system, the DC cabinet, the AC power distribution cabinet, and the high-voltage box are all separate cabinets. This design takes up a lot of space in the container, which makes the space utilization rate of the entire container low. At the same time, it is necessary to open each cabinet to check for faults during daily maintenance, which is inconvenient for maintenance.

Utility model content

The utility model aims at at least solving one of the technical problems existing in the prior art or the related art.

Therefore, the first aspect of the utility model provides a power distribution cabinet.

The second aspect of the utility model also provides an energy storage system.

In view of this, the first aspect of the utility model proposes a power distribution cabinet, including: a cabinet body; an AC power distribution part, located in the cabinet; a DC junction, located in the cabinet; , the high-voltage box is set on one side of the cabinet, and multiple high-voltage boxes are stacked from the top of the cabinet to the bottom of the cabinet. The DC confluence part is located between the AC power distribution part and the high-voltage box; The multiple high-voltage boxes are connected to the DC bus through transfer copper bars.

The power distribution cabinet provided by the utility model includes a cabinet body, an AC power distribution part, a DC confluence part and a high-voltage box. , it only needs to open the power distribution cabinet, which improves the efficiency of troubleshooting. That is, integrating the AC power distribution part, the DC confluence part and the high-voltage box into one cabinet can not only improve the efficiency of maintenance, but also improve the space utilization rate of the entire energy storage system. In addition, multiple high-voltage boxes are arranged on one side of the cabinet and stacked from the top to the bottom of the cabinet. The AC power distribution part and the DC confluence part are close to the other side of the cabinet, so that the AC power distribution part, The arrangement of DC junction and high voltage box is more compact. Multiple high-voltage boxes are connected to the DC busbar through transfer copper bars, which facilitates the connection and maintenance of the high-voltage box and the DC busbar.

According to the distribution cabinet provided by the utility model, it can also have the following additional technical features:

In some possible designs, the cabinet includes: a frame; the first bracket is arranged in the frame, the high-voltage box is arranged in the first bracket, and is distributed from the top of the frame to the bottom wall of the frame; the second bracket is arranged in the frame , the second bracket and the first bracket are arranged at intervals, the AC power distribution part is arranged on the second bracket and close to the bottom wall of the frame, and the DC confluence part is arranged between the first bracket and the second bracket.

In this design, the cabinet body includes a frame, a first bracket, and a second bracket, and the first bracket and the second bracket are arranged at intervals, and the AC power distribution part is arranged on the second bracket, so that the AC power distribution part is fixed by the second bracket In the framework, the high-voltage box is arranged on the first support, and the DC confluence part is arranged between the first support and the second support, so that the high-voltage box is conveniently connected with the DC confluence part, and at the same time, the AC power distribution part, the high-voltage box and the The distribution of DC bus parts is more compact.

In some possible designs, the cabinet further includes: a first insulating plate, which is arranged on the first support; a second insulating plate, which is spaced apart from the first insulating plate and encloses a cavity with the first insulating plate, The DC bus part is located in the cavity.

In this design, the cabinet body also includes a first insulating board and a second insulating board, the first insulating board is arranged on the first bracket, and the second insulating board is spaced apart from the first insulating board, so that the first insulating board and the second The insulating plate encloses an insulating cavity, and furthermore, the DC bus part is arranged in the cavity, thereby improving safety.

In some possible designs, the cabinet body further includes: a third insulating board connected to the first insulating board and the second insulating board, wherein the cabinet body includes an opening, and the third insulating board is located on a side of the cavity close to the opening.

In this design, the cabinet body also includes a third insulating board, which is connected with the first insulating board and the second insulating board, so that the third insulating board, the first insulating board and the second insulating board together form a safe The space improves the safety performance of the distribution cabinet. Wherein, the cabinet body includes an opening, and the third insulating plate is located on the side of the cavity close to the opening, so that the third insulating plate faces the operator, so as to ensure that the operator will not cause electric shock due to accidental touch after opening the cabinet body.

In some possible designs, the cabinet body further includes: an insulating connector, through which the first insulating board is connected to the second insulating board.

In this design, the cabinet body also includes an insulating connector, which is arranged on the side of the first insulating board facing the second insulating board, and the other end of the insulating connecting member is connected with the second insulating board to fix the second insulating board , to ensure the reliability of the space insulation where the DC junction is located.

In some possible designs, the DC bus section includes: bus bus negative copper bar, which is arranged in the cavity, and bus bus negative copper bar is connected to the first insulating plate through the first insulating column; bus bus positive copper bar, which is arranged in the cavity , the main bus positive copper bar is connected to the first insulating plate through the second insulating column, and the high voltage box is connected to the main negative copper bar of the bus and the positive copper bar of the bus.

In this design, the DC bus part includes a bus total negative copper bar and a bus bus positive copper bar, the bus bus negative copper bar and the bus bus positive copper bar are arranged in the cavity, and the bus bus negative copper bar passes through the first insulating column and the first Insulation plate connection to realize the fixation of the bus negative copper bar. The bus positive copper bar is connected to the first insulating plate through the second insulating column, so as to realize the fixing of the bus bus positive copper bar. Among them, the high-voltage box is connected with the main bus negative copper bar and the bus positive copper bar.

In some possible designs, the copper bar assembly also includes: the first high-voltage copper bar and the second high-voltage copper bar, and the transfer copper bar includes the first transfer copper bar and the second transfer copper bar; the first transfer copper bar It is connected with the main positive copper bar of the bus; the first high-voltage copper bar is connected with the first transfer copper bar and the high-voltage box; the second transfer copper bar is connected with the bus negative copper bar; the second high-voltage copper bar is connected with the second transfer copper bar The row is connected to the high-voltage box, wherein the cabinet body includes an opening, the connection between the first high-voltage copper bar and the first transfer copper bar is set close to the opening, and the connection between the second transfer copper bar and the second high-voltage copper bar is set close to the opening .

In this design, the high-voltage box is connected to the bus positive copper bar through the first high-voltage copper bar and the first transfer copper bar, wherein the connection between the first high-voltage copper bar and the first transfer copper bar is set close to the opening, so that , it is convenient for the operator to operate the connection between the first high-voltage copper bar and the first transfer copper bar, thereby facilitating maintenance. The high-voltage box is connected to the bus negative copper bar through the second high-voltage copper bar and the second transfer copper bar. The operator operates the connection between the second high-voltage copper bar and the second transfer copper bar, thereby facilitating maintenance.

In some possible designs, the power distribution cabinet also includes: a safety part, which is arranged on the second bracket, and is connected to the main bus positive copper bar and the main bus negative copper bar.

In this design, the power distribution cabinet also includes the insurance part, which is connected to the bus positive copper bar and the bus negative copper bar.

In some possible designs, the insurance part includes an isolating switch and a fuse, and the copper bar assembly also includes: a first isolated copper bar, connected to the isolating switch; a first fuse copper bar, connected to the first isolated copper bar and the fuse ; The second fuse copper bar is connected to the bus positive copper bar; the second isolated copper bar is connected to the isolating switch; the third transfer copper bar is connected to the second isolated copper bar and the bus negative copper bar.

In this design, the insurance part includes an isolating switch and a fuse, and the copper bar assembly also includes a first isolated copper bar, a first fuse copper bar, a second fuse copper bar, a second isolated copper bar and a third transfer copper bar Row. The first isolated copper bar and the first fuse copper bar are connected to the isolating switch and the fuse, and the second fuse copper bar is connected to the main positive copper bar of the bus to realize the connection between the insurance department and the main positive copper bar of the bus; the second isolated copper bar The busbar is connected to the isolating switch, and the third transfer copper bar is connected to the second isolated copper bar and the bus bus negative copper bar to realize the connection between the isolation switch and the bus bus bus negative.

According to the second aspect of the utility model, an energy storage system is also proposed, including: a battery cluster; and a power distribution cabinet as proposed in any one of the first aspect, the battery cluster is located outside the power distribution cabinet and arranged close to the high-voltage box.

The energy storage system provided by the second aspect of the utility model has all the beneficial effects of the power distribution cabinet because it includes the power distribution cabinet proposed by any of the above technical solutions.

Wherein, the energy storage system includes battery clusters, and the battery clusters are arranged outside the power distribution cabinet and close to the high-voltage box, so as to facilitate the wiring connection between the high-voltage box and the battery cluster.

Additional aspects and advantages of the invention will become apparent in the description which follows, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present utility model will become apparent and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 shows one of the schematic structural diagrams of a power distribution cabinet according to an embodiment of the present invention;

Fig. 2 shows the second structural diagram of the power distribution cabinet of an embodiment of the present invention;

Fig. 3 shows the structural representation of the cabinet body of an embodiment of the present invention;

Fig. 4 shows the third schematic diagram of the structure of the power distribution cabinet according to an embodiment of the present invention;

Fig. 5 shows a partial structural schematic diagram of the embodiment shown in Fig. 4;

Fig. 6 shows the fourth schematic diagram of the structure of the power distribution cabinet according to an embodiment of the present invention;

FIG. 7 shows a partial structural schematic diagram of the embodiment shown in FIG. 6 .

Wherein, the corresponding relationship between reference numerals and component names in Fig. 1 to Fig. 7 is:

1 cabinet body, 10 frame, 11 first support, 110 first sub-support, 112 second sub-support, 12 second support, 13 first insulating board, 130 insulating connector, 132 first insulating column, 134 second insulating Column, 14 second insulating board, 15 cavity, 16 third insulating board, 17 opening, 2 AC power distribution part, 3 DC converging part, 302 converging main negative copper bar, 304 converging main positive copper bar, 30 transfer copper Row, 31 first transfer copper bar, 32 first high voltage copper bar, 33 second transfer copper bar, 34 second high voltage copper bar, 35 insurance department, 350 isolating switch, 352 fuse, 360 first isolated copper bar , 362 first fuse copper bar, 364 second fuse copper bar, 366 second isolation copper bar, 367 third transfer copper bar, 368 P-copper bar of energy storage converter, 369 energy storage converter P+ copper bars, 37 copper bar components, 4 high voltage boxes, 5 control hosts, 6 video recorders, 7 terminal assemblies, 8 uninterruptible power supplies.

Detailed ways

In order to more clearly understand the above purpose, features and advantages of the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

In the following description, a lot of specific details have been set forth in order to fully understand the utility model, but the utility model can also be implemented in other ways different from those described here, therefore, the protection scope of the utility model is not limited by the following limitations of the specific embodiments disclosed.

The power distribution cabinet and the energy storage system proposed according to some embodiments of the present utility model are described below with reference to FIGS. 1 to 7 .

As shown in Figure 1, according to an embodiment of the utility model, the utility model proposes a power distribution cabinet, including: a cabinet body 1, an AC power distribution part 2, a DC confluence part 3, a high voltage box 4 and a copper bar assembly 37. The AC power distribution part 2 is set in the cabinet body 1; the DC confluence part 3 is set in the cabinet body 1; the high-voltage box 4 is set in the 1 to the bottom of the cabinet body 1, the copper bar assembly 37 includes a transfer copper bar 30, and the high voltage box 4 and the DC bus 3 are connected through the transfer copper bar 30.

The power distribution cabinet provided by the utility model includes a cabinet body 1, an AC power distribution part 2, a DC confluence part 3 and a high-voltage box 4, and the AC power distribution part 2, the DC confluence part 3 and the high-voltage box 4 are all arranged in the cabinet body 1 , In this way, when the energy storage system fails, it is only necessary to open the power distribution cabinet, which improves the efficiency of troubleshooting. That is, integrating the AC power distribution part 2 , the DC confluence part 3 and the high-voltage box 4 into one cabinet 1 can not only improve the efficiency of maintenance, but also improve the space utilization rate of the entire energy storage system. In addition, a plurality of high-voltage boxes 4 are arranged on one side of the cabinet 1 and stacked from the top of the cabinet 1 to the bottom of the cabinet 1. The AC power distribution part 2 and the DC confluence part 3 are close to the other side of the cabinet 1. Furthermore, the arrangement of the AC power distribution part 2 , the DC confluence part 3 and the high voltage box 4 is more compact. A plurality of high-voltage boxes 4 are connected to the DC bus section 3 through transfer copper bars 30 to facilitate the connection and maintenance of the high-voltage boxes 4 and the DC bus section 3 .

It can be understood that the power distribution cabinet includes a door body, and the door body is used to open or close the cabinet body 1 . The AC power distribution part 2, the DC confluence part 3 and the high-voltage box 4 are integrated in one cabinet 1. When a fault occurs, only the door of the cabinet 1 needs to be opened, so that the AC power distribution part 2, the DC confluence part 3 and the high-voltage The boxes 4 are displayed in front of the maintainers, and there is no need to open the doors of each cabinet separately as in the related art, so that the power distribution cabinet proposed in this application is easy to maintain and improves the maintenance efficiency.

As shown in FIG. 3 , according to an embodiment of the present application, the cabinet body 1 includes: a frame 10 , a first bracket 11 and a second bracket 12 .

Specifically, the first bracket 11 is arranged in the frame 10, and the high-voltage box 4 is arranged in the first bracket 11, and is distributed from the top of the frame 10 to the bottom wall of the frame 10; the second bracket 12 is arranged in the frame 10, and the second bracket 12 is spaced apart from the first bracket 11 , the AC power distribution part 2 is arranged on the second bracket 12 and close to the bottom wall of the frame 10 , and the DC confluence part 3 is arranged between the first bracket 11 and the second bracket 12 .

In this embodiment, the cabinet 1 includes a frame 10, a first bracket 11 and a second bracket 12, the first bracket 11 and the second bracket 12 are arranged at intervals, and the AC power distribution part 2 is arranged on the second bracket 12, so that The AC power distribution part 2 is fixed in the frame 10 through the second bracket 12, the high voltage box 4 is arranged on the first bracket 11, and the DC confluence part 3 is arranged between the first bracket 11 and the second bracket 12, so that the high voltage box 4 It is convenient to connect with the DC converging part 3, and also makes the distribution of the AC power distribution part 2, the high voltage box 4 and the DC converging part 3 more compact.

In a specific application, there are multiple high-voltage boxes 4 , and the multiple high-voltage boxes 4 are stacked in sequence along the height direction of the cabinet body 1 . Further, a plurality of high voltage boxes 4 are arranged on one side of the cabinet body 1 .

In a specific application, the first support 11 includes a first sub-support 110 and a second sub-support 112. The first sub-support 110 is connected to the side wall of the frame; the second sub-support 112 is connected to the frame. The support 110 and the second sub-support 112 are arranged at intervals, and the high-voltage box 4 is arranged on the first sub-support 110 and the second sub-support 112 .

Further, the first sub-rack 110 and the second sub-rack 112 respectively include opposite support members, and the power distribution cabinet is supported on the first sub-rack 110 and the second sub-rack 112 through the support members on both sides.

Further, the supporting member includes angle steel.

In a specific application, the number of high-pressure boxes 4 is ten.

As shown in FIG. 3 , according to an embodiment of the present application, the cabinet body 1 further includes: a first insulating board 13 and a second insulating board 14 . The first insulating plate 13 is disposed on the first support 11 ; the second insulating plate 14 is spaced apart from the first insulating plate 13 and encloses a cavity 15 with the first insulating plate 13 , and the DC bus 3 is located in the cavity 15 .

In this embodiment, the cabinet 1 further includes a first insulating board 13 and a second insulating board 14, the first insulating board 13 is arranged on the first bracket 11, the second insulating board 14 is arranged at intervals from the first insulating board 13, The first insulating plate 13 and the second insulating plate 14 enclose an insulating cavity 15 , and furthermore, the DC bus part 3 is disposed in the cavity 15 , which improves safety.

Specifically, the cavity 15 is a DC confluence space.

In a specific application, the first brackets 11 and the second brackets 12 are distributed along the width direction of the cabinet body 1 , and the first insulating boards 13 and the second insulation boards 14 are distributed along the width direction of the cabinet body 1 .

It can be understood that the first insulating plate 13 and the second insulating plate 14 are insulating materials. Specifically, the first insulating board 13 and the second insulating board 14 include rubber parts, acrylic materials and the like.

As shown in FIG. 1 and FIG. 2 , according to an embodiment of the present application, the cabinet body 1 further includes: a third insulating board 16 . The third insulating board 16 is connected to the first insulating board 13 and the second insulating board 14 , wherein the cabinet body 1 includes an opening 17 , and the third insulating board 16 is located on a side of the cavity 15 close to the opening 17 .

In this embodiment, the cabinet body 1 also includes a third insulating board 16, and the third insulating board 16 is connected with the first insulating board 13 and the second insulating board 14, so that the third insulating board 16 is connected with the first insulating board 13, the second insulating board 14 The two insulation boards 14 jointly enclose a safe space, which improves the safety performance of the power distribution cabinet. Wherein, the cabinet 1 includes an opening 17, and the third insulating plate 16 is located on the side of the cavity 15 close to the opening 17, so that the third insulating plate 16 faces the operator to ensure that the operator will not open the cabinet 1 due to accidental touch. electric shock.

It can be understood that the power distribution cabinet includes a door body, which is rotatably connected with the cabinet body 1 for opening or closing the opening 17 . When the door body opens the opening 17 , the third insulating plate 16 covers the side of the cavity 15 facing the operator, so that the operator will not mistakenly touch the DC bus part 3 in the cavity 15 .

In a specific application, the third insulating board 16 includes an acrylic insulating panel.

As shown in FIG. 3 , according to an embodiment of the present application, the cabinet body 1 further includes: an insulating connector 130 through which the first insulating board 13 and the second insulating board 14 are connected.

In this embodiment, the cabinet 1 further includes an insulating connector 130, the insulating connector 130 is arranged on the side of the first insulating board 13 facing the second insulating board 14, and the other end of the insulating connecting member 130 is connected to the second insulating board 14. connected to fix the second insulating plate 14 to ensure the reliability of the insulation of the space where the DC bus part 3 is located.

In a specific application, the insulating connector 130 includes an insulating post.

As shown in FIG. 4 , FIG. 5 , FIG. 6 and FIG. 7 , according to an embodiment of the present application, the DC bus section 3 includes: a bus bus negative copper bar 302 and a bus bus positive copper bar 304 . The bus bus negative copper bar 302 is arranged in the cavity 15, and the bus bus bus negative copper bar 302 is connected with the first insulating plate 13 through the first insulating column 132; the bus bus positive copper bar 304 is set in the cavity 15, and the bus bus bus positive The row 304 is connected to the first insulating plate 13 through the second insulating column 134 , and the high voltage box 4 is connected to the main negative copper bar 302 and the positive copper bar 304 .

In this embodiment, the direct current bus section 3 includes a busbar 302 and a busbar 304, the busbar 302 and the busbar 304 are arranged in the cavity 15, and the busbar 302 is connected to the first insulating board 13 through the first insulating column 132 to realize the fixing of the bus negative copper bar 302 . The main bus positive copper bar 304 is connected to the first insulating plate 13 through the second insulating column 134 to realize the fixing of the bus main positive copper bar 304 . Wherein, the high-voltage box 4 is connected with the main negative copper bar 302 and the positive copper bar 304 .

Further, the bus positive copper bar 304 and the bus bus negative copper bar 302 are arranged at intervals. Specifically, the dimensions of the main bus positive copper bar 304 and the main bus negative copper bar 302 are both 80×10×1200 mm. Of course, the size of the main bus positive copper bar 304 and the main bus negative copper bar 302 can also be set according to the actual situation.

Further, there are multiple groups of first insulating columns 132, second insulating columns 134 and insulating connectors 130, and multiple groups of first insulating columns 132, second insulating columns 134 and insulating connectors 130 are arranged at intervals along the height direction of the cabinet body 1 , so as to improve the fixing effect between the second insulating plate 14 , the main bus positive copper bar 304 , and the main bus negative copper bar 302 and the first insulating plate 13 .

As shown in Figures 4 and 5, according to an embodiment of the present application, the copper bar assembly 37 further includes: a first high-voltage copper bar 32 and a second high-voltage copper bar 34, and the transfer copper bar 30 includes a first transfer copper bar 31 and the second transfer copper bar 33, the first transfer copper bar 31 is connected to the main positive copper bar 304; the first high-voltage copper bar 32 is connected to the first transfer copper bar 31 and the high-voltage box 4; the second transfer The copper bar 33 is connected to the bus negative copper bar 302; the second high-voltage copper bar 34 is connected to the second transfer copper bar 33 and the high-voltage box 4, wherein the cabinet 1 includes an opening 17, and the first high-voltage copper bar 32 is connected to the first The connecting part of the transfer copper bar 31 is arranged close to the opening 17 , and the connecting part of the second transferring copper bar 33 and the second high-voltage copper bar 34 is arranged near the opening 17 .

In this embodiment, the high-voltage box 4 is connected to the main positive copper bar 304 through the first high-voltage copper bar 32 and the first transfer copper bar 31, wherein the first high-voltage copper bar 32 and the first transfer copper bar 31 The connection is arranged close to the opening 17, so that the operator is convenient to operate the connection between the first high-voltage copper bar 32 and the first transfer copper bar 31, thereby facilitating maintenance. The high-voltage box 4 is connected to the confluence main negative copper bar 302 through the second high-voltage copper bar 34 and the second transfer copper bar 33, wherein the connection between the second high-voltage copper bar 34 and the second transfer copper bar 33 is close to the cabinet body 1 The opening 17 is set so that it is convenient for the operator to operate the connection between the second high-voltage copper bar 34 and the second transfer copper bar 33, thereby facilitating maintenance.

It can be understood that the first high-voltage copper bar 32 is the P+ transfer copper bar of the high-voltage box 4 , that is, the first high-voltage copper bar 32 is connected to the positive pole of the high-voltage box 4 . The second high-voltage copper bar 34 is the P-transfer copper bar of the high-voltage box 4 , that is, the second high-voltage copper bar 34 is connected to the negative pole of the high-voltage box 4 .

In a specific application, one end of the first transfer copper bar 31 is connected to the bus positive copper bar 304, and the other end extends toward the direction of the opening 17 and protrudes beyond the edge of the bus bus 304 in the direction of the opening 17, further , the first transfer copper bar 31 and the first high-voltage copper bar 32 are respectively provided with through holes, and the through holes of the two are correspondingly arranged and connected by connecting pieces. Wherein, the through hole is arranged corresponding to the opening 17, so that the operating end of the connecting piece faces the opening 17, which is convenient for the operator to maintain.

Correspondingly, one end of the second transfer copper bar 33 is connected to the main bus negative copper bar 302, and the other end extends toward the direction of the opening 17 and protrudes from the edge of the main bus negative copper bar 302 in the direction of the opening 17. Further, the first The second transfer copper bar 33 and the second high-voltage copper bar 34 are respectively provided with through holes, and the through holes of the two are arranged correspondingly, and are connected by a connecting piece, wherein, the through hole is set corresponding to the opening 17, so that the operating end of the connecting piece Towards the opening 17, thereby facilitating maintenance by the operator.

As shown in Fig. 2, Fig. 6 and Fig. 7, according to an embodiment of the present application, the power distribution cabinet further includes: a safety part 35, the safety part 35 is arranged on the second bracket 12, and the safety part 35 is connected to the main bus bar 304 It is connected with the bus negative copper bar 302.

In this embodiment, the power distribution cabinet further includes a safety part 35 , and the safety part 35 is connected to the main positive copper bar 304 and the main negative copper bar 302 .

In a specific application, the insurance part 35 is disposed on the second bracket 12 .

As shown in Figure 7, according to one embodiment of the present application, the insurance part 35 includes an isolating switch 350 and a fuse 352, and the copper bar assembly 37 also includes: a first isolated copper bar 360 connected to the isolating switch 350; the first fuse The copper bar 362 is connected with the first isolated copper bar 360 and the fuse 352; the second fuse copper bar 364 is connected with the bus positive copper bar 304; the second isolated copper bar 366 is connected with the isolating switch 350; the third turn Connect to the copper bar 367 and connect with the second isolated copper bar 366 and the bus negative copper bar 302 .

In this embodiment, the insurance part 35 includes an isolating switch 350 and a fuse 352, and the copper bar assembly 37 also includes a first isolated copper bar 360, a first fuse copper bar 362, a second fuse copper bar 364, a second isolated copper bar The copper bar 366 and the third transfer copper bar 367. The first isolation copper bar 360 and the first fuse copper bar 362 are connected to the isolating switch 350 and the fuse 352, and the second fuse copper bar 364 is connected to the main positive copper bar 304 of the bus, so as to realize the connection between the insurance part 35 and the main positive copper bar 304 of the bus. The connection between the second isolated copper bar 366 is connected with the isolating switch 350, and the third transfer copper bar 367 is connected with the second isolated copper bar 366 and the bus total negative copper bar 302, so as to realize the connection between the isolating switch 350 and the bus bus negative copper bar 302 connect.

In a specific application, the second fuse copper bar 364 extends from the side of the fuse 352 toward the opening 17 of the cabinet 1 to the main bus positive copper bar 304 to realize connection with the main bus positive copper bar 304 . The first fuse copper bar 362 , the first isolated copper bar 360 , and the second isolated copper bar 366 are located on a side of the isolating switch 350 and the fuse 352 away from the opening 17 of the cabinet 1 . Wherein, the third transfer copper bar 367 extends from one end of the second isolated copper bar 366 to the main bus negative copper bar 302 to realize the connection with the main bus negative copper bar 302 .

Specifically, the connection between the third transfer copper bar 367 and the second isolated copper bar 366 is exposed in the cavity 15 for easy maintenance.

Further, the isolating switch 350 is also provided with a copper bar connected to the positive pole of the energy storage converter and a copper bar connected to the negative pole of the energy storage converter.

According to the second aspect of the utility model, an energy storage system is also proposed, including: a battery cluster; and a power distribution cabinet as proposed in any one of the first aspect, the battery cluster is located outside the power distribution cabinet and arranged close to the high-voltage box 4 .

The energy storage system provided by the second aspect of the utility model has all the beneficial effects of the power distribution cabinet because it includes the power distribution cabinet proposed by any one of the above embodiments.

Wherein, the energy storage system includes a battery cluster, and the battery cluster is arranged outside the power distribution cabinet, and is arranged close to the high-voltage box 4, so as to facilitate the wiring connection between the high-voltage box 4 and the battery cluster.

In a specific application, in this application, 10 high-voltage boxes 4 are arranged on the right side of the cabinet 1, the DC confluence space (cavity 15) in the middle of the cabinet 1 is designed for DC confluence, and the lower left of the cabinet 1 is used for AC distribution. Electrical design, other large devices are arranged on the upper left of cabinet 1. Through the layout design, they are integrated together to reduce the space occupied by the container.

Among them, as shown in Figures 1 to 7, the power distribution cabinet is an AC and DC integrated cabinet, mainly including: cabinet body 1, video recorder 6, uninterruptible power supply 8 (Uninterruptible Power Supply, UPS), intelligent control host 5, fuse 352 , isolating switch 350 , AC power distribution unit 2 , terminal assembly 7 , acrylic insulating panel, and high-voltage box 4 . The cabinet body 1 mainly includes: a first sub-support 110, a second sub-support 112, a first insulating post 132, a second insulating post 134, an insulating connector 130, a first insulating plate 13, a second insulating plate 14, and a second support 12. DC confluence space (cavity 15).

The confluence connection copper bar includes: the confluence main positive copper bar 304, the confluence main negative copper bar 302, the P+ transfer copper bar of the high voltage box 4 (that is, the first transfer copper bar 31), the P- transfer copper bar of the high voltage box 4 row (that is, the second transfer copper row 33), high-voltage box 4P+copper row (that is, the first high-voltage copper row 32), high-voltage box 4P-copper row (that is, the second high-voltage copper row 34), the first fuse Copper bar 362, second fuse copper bar 364, first isolated copper bar 360, second isolated copper bar 366, third transfer copper bar 367, P-copper bar 368 of energy storage converter, energy storage converter The P+ copper bar of the device is 369.

Specifically, the first insulating plate 13 is fixed on the second sub-support 112 of the first support 11, and then a plurality of sets of first insulating posts 132, second insulating posts 134 and insulating connectors 130 are assembled on the first insulating plate 13, Among them, the first insulating column 132 is used to support the fixed bus negative copper bar 302, the second insulating column 134 is used to support the fixed bus positive copper bar 304, the size of the bus positive copper bar 304/the bus negative copper bar 302 It is: 80×10×1200 mm, and the insulating connector 130 is used to support and fix the second insulating plate 14 . In this way, the DC confluence space forms a safe insulating space.

The connection method between the high-voltage box 4 and the confluence main positive copper bar 304/the confluence main negative copper bar 302 is: first fix the high-voltage box 4P+transfer copper bar on the confluence main positive copper bar 304 in sequence, and then use the high-voltage box 4P+copper bar Connect the high-voltage box 4 and the high-voltage box 4P+ transfer copper bar together. The reason why there is a transfer copper bar in the middle is to facilitate the maintenance and installation of the high-voltage box 4 later. Similarly, install the P-transfer copper bar of the high-voltage box 4 and the P-copper bar of the high-voltage box 4 in sequence.

Finally install the remaining copper bars on the isolating switch 350 and the fuse 352, which are respectively the second fuse copper bar 364, the first fuse copper bar 362, the first isolated copper bar 360, the third transfer copper bar 367, the Two isolated copper bars 366 , P- copper bars of the power conversion system (PCS), and P+ copper bars to the PCS.

After the DC bus bar is installed, the acrylic insulation panel is assembled to ensure that after opening the door, personnel will not accidentally touch it and cause an electric shock.

Since this solution integrates the DC cabinet, AC power distribution cabinet, and high-voltage box 4, if there is a place that needs electrical maintenance later, you only need to open this door, and the troubleshooting and maintenance efficiency is very high; and Compared with the conventional single cabinet 1 scheme, this scheme integrates the DC confluence part 3, the AC power distribution part 2, and the high-voltage box 4, which greatly improves the space utilization rate of the container and reduces the structural cost of the cabinet;

Specifically, in this application, the power distribution cabinet is placed on the leftmost side of the container, and the battery cluster is placed on the right side, so the structural layout of the power distribution cabinet is in the middle. The high-voltage box 4 is placed on the right side of the cabinet 1, and this is done for the convenience of wiring connection with the battery cluster.

If the power distribution cabinet is placed on the far right side of the container, then the position of the high-voltage box 4 in this application is changed accordingly, and it can be placed on the left side of the power distribution cabinet.

In the present invention, the term "plurality" refers to two or more than two, unless otherwise clearly defined. The terms "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, "connection" can be fixed connection, detachable connection, or integral connection; "connection" can be directly or indirectly through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

In the description of this specification, descriptions of the terms "one embodiment", "some embodiments", "specific embodiments" and the like mean that specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in the present application. Novel at least one embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above descriptions are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (10)

1. A power distribution cabinet, comprising:

a cabinet body;

an alternating current power distribution part which is arranged in the cabinet body;

the direct current converging part is arranged in the cabinet body;

the high-voltage boxes are arranged in the cabinet body, one side, close to the cabinet body, of each high-voltage box is stacked and distributed from the top of the cabinet body to the bottom of the cabinet body, and the direct current converging part is positioned between the alternating current power distribution part and the high-voltage boxes;

the copper bar assembly comprises a transfer copper bar, and a plurality of high-voltage boxes are connected with the direct current converging part through the transfer copper bar.

2. The power distribution cabinet of claim 1, wherein the cabinet body comprises:

a frame;

the first bracket is arranged in the frame, and the high-pressure box is arranged in the first bracket and is distributed from the top of the frame to the bottom wall of the frame;

the second support is arranged in the frame, the second support and the first support are arranged at intervals, the alternating current power distribution part is arranged on the second support and is close to the bottom wall of the frame, and the direct current converging part is arranged between the first support and the second support.

3. The power distribution cabinet of claim 2, wherein the cabinet further comprises:

the first insulation plate is arranged on the first bracket;

the second insulating plate is arranged at intervals with the first insulating plate and surrounds the cavity with the first insulating plate, and the direct current converging part is positioned in the cavity.

4. A power distribution cabinet according to claim 3, wherein the cabinet further comprises:

a third insulating plate connected to the first insulating plate and the second insulating plate,

the cabinet body comprises an opening, and the third insulating plate is positioned on one side of the cavity close to the opening.

5. A power distribution cabinet according to claim 3, wherein the cabinet further comprises:

and the first insulating plate is connected with the second insulating plate through the insulating connecting piece.

6. A power distribution cabinet according to claim 3, wherein the direct current collector comprises:

the total copper busbar is arranged in the cavity and is connected with the first insulating plate through a first insulating column;

the total positive copper bar of converging is located in the cavity, total positive copper bar of converging pass through the second insulated column with first insulation board is connected, the high-voltage box with total negative copper bar of converging the total positive copper bar of converging is connected.

7. The power distribution cabinet of claim 6, wherein the copper bar assembly further comprises: the switching copper bars comprise first switching copper bars and second switching copper bars;

the first switching copper bar is connected with the total positive copper bar of the confluence, the first high-voltage copper bar is connected with the first switching copper bar and the high-voltage box, the second switching copper bar is connected with the total negative copper bar of the confluence, the second high-voltage copper bar is connected with the second switching copper bar and the high-voltage box,

the cabinet body comprises an opening, the connection part of the first high-voltage copper bar and the first switching copper bar is close to the opening, and the connection part of the second switching copper bar and the second high-voltage copper bar is close to the opening.

8. The power distribution cabinet of claim 6, further comprising

And the safety part is arranged on the second bracket and is connected with the total conflux positive copper bar and the total conflux negative copper bar.

9. The power distribution cabinet of claim 8, wherein the safety portion comprises a disconnecting switch and a fuse, the copper bar assembly further comprising:

the first isolation copper bar is connected with the isolation switch;

the first fuse copper bar is connected with the first isolation copper bar and the fuse;

the second fuse copper bar is connected with the total copper bar;

the second isolation copper bar is connected with the isolation switch;

and the third switching copper bar is connected with the second isolation copper bar and the total busbar.

10. An energy storage system, comprising:

a battery cluster; and

a power distribution cabinet according to any one of claims 1 to 9, the battery cluster being located outside the power distribution cabinet and located close to the high voltage cabinet.