Energy storage container and energy storage system

Abstract

The utility model relates to the technical field of energy storage systems, in particular to an energy storage container and an energy storage system. The energy storage container comprises a container body, a busbar and a supporting assembly, and a wire outlet hole is formed in the bottom of the container body. The confluence cabinet is arranged in the box body, a busbar is arranged in the confluence cabinet, and the busbar is configured to be capable of being connected with a cable which penetrates through the wire outlet hole and extends into the confluence cabinet. The supporting assembly is fixedly arranged at the bottom of the box body and can be connected with a cable support. The energy storage system comprises the energy storage container and is connected with the cable through the supporting assembly, so that the cable is stably supported, the gravity of the cable is transferred to the bottom of the container body, the stress of the busbar is greatly reduced, the insulation columns on the busbar are prevented from being broken, the positions of the cable and the busbar are kept stable, and the service life of the cable is prolonged. The stability and reliability of connection between the energy storage container and the external equipment are improved, short circuit in the energy storage container is avoided, and the safety of the energy storage container is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage systems, in particular to an energy storage container and an energy storage system. Background Art

[0002] The energy storage container in the energy storage system has high energy density, small floor area, convenient installation, short construction period, convenient mobile transportation, and has standardized components and flexible system capacity configuration to meet the needs of most customers.

[0003] In the existing energy storage container, a busbar cabinet is installed inside the box body, and the busbar cabinet is responsible for the on-off of the DC load part. The positive busbar and the negative busbar are respectively installed in the cabinet body of the busbar cabinet through insulating components such as insulating columns. The wire outlet holes at the bottom of the box body serve as channels for connecting external devices (such as energy storage inverters, etc.). Four armored positive cables of the energy storage inverter pass through the wire outlet holes and are directly connected to the positive busbar, and four armored negative cables pass through the wire outlet holes and are directly connected to the negative busbar. Since the cables are connected to the busbar through vertical wiring, under the action of the gravity of the cables, the insulating columns are easily broken, resulting in unstable cable positions and causing faults such as short circuits, reducing the safety when the busbar cabinet is connected to external devices. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an energy storage container and an energy storage system to improve the connection stability and reliability between the energy storage container and external devices, avoid short circuits inside the energy storage container, and improve the safety of the energy storage container.

[0005] To achieve this purpose, the technical solution adopted by the utility model is as follows:

[0006] An energy storage container, comprising:

[0007] A box body, with wire outlet holes opened at the bottom of the box body;

[0008] A busbar cabinet, which is arranged inside the box body, and a busbar is arranged inside the busbar cabinet, and the busbar is configured to be able to be connected to a cable passing through the wire outlet hole and extending into the interior of the busbar cabinet;

[0009] A support assembly, which is fixedly arranged at the bottom of the box body and can be connected to support the cable.

[0010] As an optional scheme of the energy storage container, the support assembly is provided with a hoop hole for the cable to pass through, so that the support assembly can hold the cable tightly.

[0011] As an optional scheme of the energy storage container, the support assembly includes:

[0012] Two hoop plates, wherein the hoop plates are provided with grooves at intervals along the length direction, and the two hoop plates are pressed against each other so that the grooves of one hoop plate correspond to the grooves of the other hoop plate one by one to form the hoop holes;

[0013] Fasteners, wherein the hoop plates are provided with mounting holes, and the fasteners pass through the mounting holes of the two hoop plates to lock the two hoop plates.

[0014] As an alternative solution for the energy storage container, the two ends of the hoop plate along the length direction are lapped on the outer edge of the wire outlet hole and welded to the inner bottom wall of the box body.

[0015] As an alternative solution for the energy storage container, the inner bottom wall of the box body is provided with mounting plates, and each of the two sides opposite to the wire outlet hole is provided with one mounting plate, and the two ends of the support assembly along the length direction are respectively fixedly connected to the corresponding mounting plate.

[0016] As an alternative solution for the energy storage container, the support assembly is welded to the mounting plate; or, the support assembly is connected to the mounting plate by bolts.

[0017] As an alternative solution for the energy storage container, the energy storage container further includes a base, the lower end of the base is fixedly installed on the inner bottom wall of the box body, and the upper end of the base supports and arranges the busbar cabinet.

[0018] As an alternative solution for the energy storage container, the base includes at least two support seats, and at least two support seats are arranged on the inner bottom wall of the box body at intervals along the circumferential direction of the busbar cabinet.

[0019] As an alternative solution for the energy storage container, the height of the base is 100 mm to 200 mm.

[0020] An energy storage system, including the above-mentioned energy storage container.

[0021] The beneficial effects of the present utility model are as follows:

[0022] For the energy storage container proposed by the present utility model, the cable passes through the wire outlet hole and extends into the busbar cabinet to be connected to the busbar inside the busbar cabinet. By fixedly arranging a support assembly at the bottom of the box body to be connected to the cable, the cable can be stably supported, and the gravity of the cable is transferred to the bottom of the box body, greatly reducing the downward pulling force generated by the self-gravity of the cable on the busbar, avoiding the fracture of the insulating column on the busbar, keeping the position of the cable and the busbar stable, improving the stability and reliability of the connection between the energy storage container and external equipment, avoiding short circuits inside the energy storage container, and improving the safety of the energy storage container.

[0023] The energy storage system proposed by the present utility model includes the above-mentioned energy storage container, which is connected to a cable through a support assembly to achieve stable support for the cable and transfer the gravity of the cable to the bottom of the container, greatly reducing the force on the busbar, avoiding the fracture of the insulating column on the busbar, keeping the position of the cable and the busbar stable, improving the stability and reliability of the connection between the energy storage container and external equipment, preventing short circuits inside the energy storage container, and enhancing the safety of the energy storage system. Description of the Drawings

[0024] Figure 1 is a schematic diagram of the internal structure of the energy storage container provided by an embodiment of the present utility model;

[0025] Figure 2 is a cross-sectional view of the busbar cabinet provided by an embodiment of the present utility model;

[0026] Figure 3 is a schematic diagram of a partial structure of the energy storage container provided by an embodiment of the present utility model;

[0027] Figure 4 is Figure 3 a partial enlarged view of part A in

[0028] Figure 5 is a schematic diagram of the structure of the hoop plate provided by an embodiment of the present utility model.

[0029] The names and reference numerals of the components in the figure are as follows:

[0030] 10. Cable;

[0031] 1. Container; 11. Inner bottom wall; 12. Outlet hole; 2. Busbar cabinet; 21. Busbar; 22. Insulating column; 23. Bracket; 24. Through hole; 3. Support assembly; 30. Hoop hole; 31. Hoop plate; 311. Groove; 312. Mounting hole; 32. Fastener; 4. Base; 41. Support seat. Detailed Embodiment

[0032] To make the technical problems solved, the technical solutions adopted, and the technical effects achieved by the present utility model clearer, the technical solutions of the present utility model will be further described below with reference to the drawings and through specific embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model and are not intended to limit the present utility model. Additionally, it should be noted that for the sake of convenience of description, only parts related to the present utility model are shown in the drawings rather than all of them.

[0033] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath", and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0035] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", and "left" are based on the orientation or positional relationships shown in the drawings. It is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0036] The technical solution of the present utility model will be further described below with reference to the drawings and through specific embodiments.

[0037] As Figure 1 shown, this embodiment provides an energy storage container, which includes a box body 1 and a busbar 21. An outlet hole 12 is opened at the bottom of the box body 1. A busbar cabinet 2 and energy storage batteries (or battery modules) are arranged inside the box body 1, and a busbar 21 is arranged inside the busbar cabinet 2. The busbar cabinet 2 is responsible for the on-off of the DC load part. External equipment is connected to the busbar 21 inside the box body 1 through a cable 10.

[0038] Specifically, as Figure 1 and Figure 2As shown, inside the busbar cabinet 2, the busbar 21 includes a positive copper busbar and a negative copper busbar. The positive copper busbar and the negative copper busbar are respectively installed on the bracket 23 inside the busbar cabinet 2 through insulating columns 22. Two through holes 24 are provided at the bottom of the busbar 21, and each through hole 24 is aligned with a copper busbar. The external device in this embodiment is a energy storage converter. The energy storage converter passes through the outlet hole 12 and a through hole 24 with four armored positive cables 10 and then extends vertically (the up and down direction in the figure) into the busbar cabinet 2 and is directly connected to the positive copper busbar. Four armored negative cables 10 pass through the outlet hole 12 and the other through hole 24 and then extend vertically into the busbar cabinet 2 and are directly connected to the negative copper busbar.

[0039] Since the cable 10 is connected to the busbar 21 by a vertical wiring method, under the action of the gravity of the cable 10, the insulating column 22 is easily broken, resulting in the unstable position of the cable 10 and thus causing faults such as short circuits, reducing the safety when the busbar cabinet 2 is connected to external devices.

[0040] To solve the above problems, as Figure 3 and Figure 4 shown, the energy storage container further includes a support assembly 3. The support assembly 3 is fixedly arranged at the bottom of the box body 1 and can be supported and connected to the cable 10. By fixedly arranging the support assembly 3 at the bottom of the box body 1 and connecting it to the cable 10, the cable 10 can be stably supported, and the gravity of the cable 10 is transferred to the bottom of the box body 1, greatly reducing the downward pulling force on the busbar 21 generated by the self-gravity of the cable 10, avoiding the fracture of the insulating column 22 on the busbar 21, keeping the position of the cable 10 and the busbar 21 stable, improving the stability and reliability of the connection between the energy storage container and external devices, avoiding short circuits inside the energy storage container, and improving the safety of the energy storage container.

[0041] Specifically, the support assembly 3 is provided with a hoop hole 30 for the cable 10 to pass through, so that the support assembly 3 can hold the cable 10 tightly. The support assembly 3 is a hoop structure and has a plurality of hoop holes 30, enabling the support assembly 3 to hold multiple cables 10 connected to the same busbar 21 at the same time, improving the fixing strength and stability of the support assembly 3 for the cable 10. In this embodiment, the number of cables 10 connected to each busbar 21 is four and they are arranged side by side in the left and right direction. Therefore, the number of support assemblies 3 is two, and each support assembly 3 has four hoop holes 30 to respectively hold the four cables 10 connected to each busbar 21. It can be understood that the hoop holes 30 of the support assembly 3 can be flexibly adjusted according to the number of cables 10 connected to each busbar 21, and no specific limitation is made here.

[0042] As Figure 4 and Figure 5As shown, the support assembly 3 includes two hoop plates 31 and fasteners 32. The hoop plates 31 are provided with grooves 311 at intervals along the length direction. The two hoop plates 31 are pressed against each other so that the grooves 311 of one hoop plate 31 correspond to the grooves 311 of the other hoop plate 31 one by one to form a hoop hole 30. The hoop plate 31 is provided with mounting holes 312. The fasteners 32 pass through the mounting holes 312 of the two hoop plates 31 to lock the two hoop plates 31. By pressing the two hoop plates 31 against each other and fixedly connecting them through the fasteners 32, each formed hoop hole 30 can hold a corresponding cable 10 tightly, and the disassembly and assembly operations of the support assembly 3 are made more convenient and easy, improving the disassembly and assembly efficiency of the support assembly 3.

[0043] Specifically, the fasteners 32 are bolts and nuts. The hoop plates 31 are provided with mounting holes 312 at both ends along the length direction. When the two hoop plates 31 are pressed against each other, the mounting holes 312 at the same end of the two hoop plates 31 are aligned and communicated. The bolts pass through the two communicated mounting holes 312 in sequence and are tightened with the nuts to fixedly connect the two ends of the two hoop plates 31 in the length direction together, improving the structural strength and stability of the support assembly 3.

[0044] In one embodiment, both ends of the hoop plate 31 along the length direction overlap the outer edge of the wire outlet hole 12 and are welded to the inner bottom wall 11 of the box body 1. By fixedly welding the hoop plate 31 to the inner bottom wall 11 of the box body 1, the gravity of the cable 10 is transmitted to the box body 1 through the hoop plate 31, improving the support effect on the cable 10. At the same time, while the hoop plate 31 holds the cable 10 tightly, it can also limit and fix the cable 10 to prevent the cable 10 from shaking, further reducing the tension of the cable 10 on the bus bar 21.

[0045] In another embodiment, the inner bottom wall 11 of the box body 1 may also be provided with mounting plates (not shown in the figure). There is one mounting plate on each side opposite to each wire outlet hole 12. Both ends of the support assembly 3 along the length direction are fixedly connected to a corresponding mounting plate respectively. By adjusting the height of the mounting plate, the height of the support assembly 3 in the vertical direction can be adjusted so as to connect the support assembly 3 and the mounting plate into an integral body. The gravity of the cable 10 is transmitted to the box body 1 through the support assembly 3 and the mounting plate to achieve stable support for the cable 10. Specifically, the support assembly 3 can be welded to the mounting plate to improve the connection strength between the support assembly 3 and the mounting plate and the support effect on the cable 10. Or, the support assembly 3 can also be connected to the mounting plate through bolts, improving the assembly efficiency of the support assembly 3 and the mounting plate and facilitating the quick disassembly and assembly of the support assembly 3.

[0046] Such as Figure 3As shown in the figure, the energy storage container further includes a base 4. The lower end of the base 4 is fixedly installed on the inner bottom wall 11 of the box body 1, and the upper end of the base 4 supports a busbar cabinet 2. By installing the base 4 on the inner bottom wall 11 of the box body 1, the height of the busbar cabinet 2 is increased, that is, the height of the busbars 21 in the busbar cabinet 2 is increased, and the distance between the busbar cabinet 2 and the inner bottom wall 11 of the box body 1 is increased, thereby increasing the installation space of the support assembly 3 at the wire outlet hole 12, facilitating the assembly personnel to quickly disassemble and assemble the support assembly 3, and further improving the disassembly and assembly efficiency of the support assembly 3.

[0047] Specifically, the base 4 includes at least two support seats 41. The at least two support seats 41 are arranged on the inner bottom wall 11 of the box body 1 at intervals along the circumferential direction of the busbar cabinet 2. By setting the base 4 as a split structure, the support seats 41 can flexibly select the installation positions on the inner bottom wall 11 of the box body 1 according to the installation requirements to avoid components such as cables 10, and prevent interference between the base 4 and the box body 1 or the busbar cabinet 2, realizing the flexible installation of the base 4. At the same time, the split support seats 41 have a smaller floor area and lighter weight. In this embodiment, there are two support seats 41. The two support seats 41 are arranged at intervals in the front-rear direction and jointly support the bottom of the busbar cabinet 2. In other embodiments, the number and installation positions of the support seats 41 can be flexibly adjusted and are not specifically limited herein.

[0048] It should be noted that the height of the base 4 in this embodiment is 100 mm to 200 mm. Exemplarily, the height of the base 4 can be 100 mm, 120 mm, 140 mm, 160 mm, 180 mm or 200 mm, etc. When the height of the base 4 is lower than 100 mm, the installation space between the inner bottom wall 11 of the box body 1 and the busbar cabinet 2 is too small, which is not conducive to the assembly personnel to quickly disassemble and assemble the support assembly 3; when the height of the base 4 is higher than 200 mm, the installation space between the inner bottom wall 11 of the box body 1 and the busbar cabinet 2 is too large, resulting in too high a lifting height of the busbar cabinet 2, increasing the height dimension and occupied space of the box body 1, and at the same time, it will cause the length of the cable 10 extending into the box body 1 to be too long, increasing the pulling force on the busbars 21.

[0049] This embodiment also proposes an energy storage system. The energy storage system includes the above-mentioned energy storage container, which is connected to the cable 10 through the support assembly 3 to realize the stable support of the cable 10 and transfer the gravity of the cable 10 to the bottom of the box body 1, greatly reducing the force on the busbars 21, avoiding the fracture of the insulating columns 22 on the busbars 21, keeping the cable 10 and the busbars 21 in a stable position, improving the stability and reliability of the connection between the energy storage container and external equipment, avoiding short circuits inside the energy storage container, and improving the safety of the energy storage system.

[0050] The above embodiments only illustrate the basic principles and characteristics of the present utility model. The present utility model is not limited by the above embodiments. Without departing from the spirit and scope of the present utility model, various changes and modifications can be made to the present utility model, and these changes and modifications all fall within the scope of the present utility model claimed. The scope of protection claimed for the present utility model is defined by the appended claims and their equivalents.

Claims

1. Energy storage container, characterized in that: include: A box body (1), wherein a wire outlet hole (12) is provided at the bottom of the box body (1); A combiner cabinet (2), the combiner cabinet (2) being arranged in the housing (1), and a busbar (21) being arranged inside the combiner cabinet (2), the busbar (21) being configured to be connected to a cable (10) passing through the outlet hole (12) and extending into the combiner cabinet (2); A support component (3), wherein the support component (3) is fixedly arranged at the bottom of the box (1) and can be supported and connected to the cable (10).

2. The energy storage container according to claim 1, characterized in that: The support component (3) is provided with a hoop hole (30) for the cable (10) to pass through, so that the support component (3) can hold the cable (10) tightly.

3. The energy storage container according to claim 2, characterized in that: The support assembly (3) comprises: Two hoop plates (31), each of the hoop plates (31) being provided with grooves (311) at intervals along the length direction, and the two hoop plates (31) being closely attached to each other so that the groove (311) of one hoop plate (31) corresponds to the groove (311) of the other hoop plate (31) in a one-to-one correspondence to form the hoop hole (30); A fastener (32), the hoop plate (31) is provided with a mounting hole (312), and the fastener (32) passes through the mounting holes (312) of the two hoop plates (31) to lock the two hoop plates (31).

4. The energy storage container according to claim 3, characterized in that: The two ends of the hoop plate (31) along the length direction are overlapped with the outer edge of the wire outlet hole (12) and welded to the inner bottom wall (11) of the box body (1).

5. The energy storage container according to claim 2, characterized in that: The inner bottom wall (11) of the box body (1) is provided with a mounting plate, and each of the two opposite sides of the outlet hole (12) has a mounting plate, and the two ends of the support assembly (3) along the length direction are respectively fixedly connected to a corresponding mounting plate.

6. The energy storage container according to claim 5, characterized in that: The support assembly (3) is connected to the mounting plate by welding; or, the support assembly (3) is connected to the mounting plate by bolts.

7. The energy storage container according to any one of claims 1 to 6, characterized in that: The energy storage container further comprises a base (4), the lower end of the base (4) being fixedly mounted on the inner bottom wall (11) of the box body (1), and the upper end of the base (4) being supported and provided with the combiner cabinet (2).

8. The energy storage container according to claim 7, characterized in that: The base (4) comprises at least two support seats (41), and the at least two support seats (41) are arranged on the inner bottom wall (11) of the box body (1) at intervals along the circumference of the combiner cabinet (2).

9. The energy storage container according to claim 7, characterized in that: The height of the base (4) is 100 mm to 200 mm.

10. An energy storage system, characterized in that: An energy storage container comprising any one of claims 1 to 9.

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