Energy storage enclosure and battery energy storage system having the energy storage enclosure

Abstract

This application relates to the field of battery technology and discloses an energy storage box and a battery energy storage system having the energy storage box. The energy storage box includes a box frame, multiple covers, and multiple supports. The box frame includes a bottom beam and a top beam. Multiple covers are arranged side-by-side between the bottom beam and the top beam, and the multiple covers cooperate to form the sidewalls of the box. Among the multiple supports arranged at intervals, the first end of each support is fixed to the bottom beam, and the second end of each support is fixed to the top beam. Each support is located between two adjacent covers, and both adjacent covers are fixed to the supports. This application arranges supports between the bottom beam and the top beam. When installing the covers, the supports are first installed and fixed between the bottom beam and the top beam, and then the covers are installed on the supports. The positioning operation of the covers and supports is relatively simple, making the installation of the covers simple, time-saving, and labor-saving.

Description

Technical Field

[0001] This application relates to the field of battery technology, specifically to an energy storage box and a battery energy storage system having the energy storage box. Background Technology

[0002] As an important electrical energy storage and conversion device, energy storage containers are widely used in power system peak shaving and new energy consumption.

[0003] The existing energy storage container structure includes a container frame and cover panels installed on the sides of the frame. The top and bottom of the cover panels are bolted to the top and bottom beams of the container frame, respectively. When installing the cover panels onto the container frame, construction workers need to align the multiple mounting holes on the cover panels with the corresponding mounting holes on the top and bottom beams of the container frame one by one before they can be fixed to the top and bottom beams using fasteners. This process is complex, time-consuming, and labor-intensive. Utility Model Content

[0004] In view of this, this application provides an energy storage box and a battery energy storage system having the energy storage box, so as to solve the problems of complex, time-consuming and labor-intensive installation of the cover plate in the prior art.

[0005] In a first aspect, this application provides an energy storage enclosure, including an enclosure frame, multiple covers, and multiple spaced-apart support members. The enclosure frame includes a bottom beam and a top beam; multiple covers are arranged side-by-side adjacent to each other between the bottom beam and the top beam, and the multiple covers cooperate to form the sidewalls of the energy storage enclosure; among the spaced-apart support members, the first end of each support member is fixed to the bottom beam, the second end of each support member is fixed to the top beam, and each support member is disposed between two adjacent covers, with each adjacent cover fixed to a support member.

[0006] Beneficial effects: By arranging support members between the bottom beam and the top beam, when installing the cover, the support members are first installed and fixed between the bottom beam and the top beam, and then the cover is installed on the support members. The positioning operation of the cover and the support members is relatively simple, making the installation of the cover simple, time-saving and labor-saving.

[0007] In one alternative embodiment, at least one of the bottom beam and the top beam is provided with a limiting groove, and the end of the cover extends into the limiting groove, the limiting groove being used to restrict the movement of the cover in a direction away from the box frame.

[0008] Beneficial effects: Setting a limiting groove on the bottom beam allows for positioning of the bottom of the cover component during installation, facilitating installation. Setting a limiting groove on the top beam allows the top of the cover component to extend into the limiting groove after installation, with the top beam concealing the top of the cover component and improving the overall aesthetics of the energy storage tank.

[0009] In one alternative embodiment, the distance between the limiting groove on the bottom beam and the limiting groove on the top beam is less than the height of the cover.

[0010] Beneficial effect: The distance between the limiting grooves set on the bottom beam and the top beam is less than the height of the cover, which allows both ends of the cover to be inserted into the two limiting grooves respectively, making the overall box body look beautiful.

[0011] In one optional embodiment, the limiting groove includes a first limiting groove disposed on the bottom beam;

[0012] The first limiting groove is configured as a C-shaped groove structure, and the two sides of the opening of the C-shaped groove structure are respectively provided with a first folded edge and a second folded edge, and the first folded edge and the second folded edge are offset in the horizontal direction.

[0013] Beneficial effects: The first limiting groove on the bottom beam is set as a C-shaped groove, which supports the first and second folded edges. After the first limiting groove is inserted into the bottom of the cover, the first and second folded edges cooperate to limit the bottom of the cover, thus facilitating the installation of the cover.

[0014] In one alternative embodiment, a connector is provided between the first folded edge and the support member, and the support member is connected to the first folded edge through the connector.

[0015] Beneficial effect: The support is fixedly installed on the first folded edge by the connector, which facilitates the connection between the support and the bottom beam.

[0016] In one alternative embodiment, the first fold and the second fold are offset in the height direction, and the top end of the second fold is located below the connector.

[0017] Beneficial effect: The second fold is located on one side of the first fold, and the top of the second fold is lower than the connector in the vertical direction, which makes it easier to fix the support to the first fold through the connector.

[0018] In one optional embodiment, the limiting groove further includes a second limiting groove disposed on the top beam;

[0019] The second limiting groove is configured as a U-shaped groove structure, with the opening of the U-shaped groove structure facing the bottom beam, and the cover is inserted into the U-shaped groove structure.

[0020] Beneficial effects: The second limiting groove adopts a U-shaped groove structure, which facilitates the insertion of the top of the cover into the second limiting groove and enables the top beam to cover the top of the cover.

[0021] In one alternative embodiment, a shielding member is provided on the side of the cover away from the support member. The shielding member is used to shield the gap at the joint of two adjacent covers. Fasteners are provided on the shielding member and the cover, and the fasteners are fixed to the support member.

[0022] Beneficial effects: The shielding component can cover the joint between adjacent covers, improving the sealing effect at the joint and enhancing the overall aesthetics of the enclosure. Furthermore, the shielding component and covers are fixed to the support component with fasteners, reducing the number of fasteners required and facilitating the installation of both components.

[0023] In one alternative embodiment, at least a portion of the cover has ventilation holes.

[0024] Beneficial effect: Ventilation holes are provided on some of the covers to facilitate ventilation of the enclosure.

[0025] Secondly, this application provides a battery energy storage system, including the energy storage box described in any of the above claims.

[0026] Beneficial effects: The battery energy storage system has the above-mentioned energy storage box, which has the advantage of being easy to assemble, thereby improving the assembly efficiency of the battery energy storage system. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the energy storage box according to an embodiment of this application;

[0029] Figure 2 This is a structural schematic diagram showing the connection relationship between the cover, the bottom beam, and the top beam in an embodiment of this application;

[0030] Figure 3 This is an exploded view showing the connection relationship between the cover and the support in an embodiment of this application;

[0031] Figure 4 Examples of embodiments of this application Figure 3 A magnified view of a section at point A in the middle;

[0032] Figure 5 Examples of embodiments of this application Figure 3 A magnified view of a section at point B in the middle;

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Bottom beam; 101. First folded edge; 102. Second folded edge; 103. First bottom connecting section; 104. Second bottom connecting section; 105. Third bottom connecting section; 106. Reinforcing rib;

[0035] 2. Top beam; 201. First top connecting section; 202. Second top connecting section; 203. Third top connecting section;

[0036] 3. Cover; 4. Support; 51. First limiting groove; 52. Second limiting groove; 6. Connector; 7. Cover; 8. Fastener; 9. Vent hole; 10. Side beam. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0038] Please refer to Figures 1-5 In a first aspect, embodiments of this application provide an energy storage box, which includes a box frame, multiple covers 3 and multiple supports 4. The box frame includes a bottom beam 1, a top beam 2 and side beams 10. Multiple covers 3 are arranged side by side between the bottom beam 1 and the top beam 2, and the multiple covers 3 cooperate to form the side wall of the energy storage box. Among the multiple supports 4 arranged at intervals, the first end of each support 4 is fixed to the bottom beam 1, the second end of each support 4 is fixed to the top beam 2, and each support 4 is arranged between two adjacent covers 3, and both adjacent covers 3 are fixed to the support 4.

[0039] The following description uses a horizontal arrangement of the energy storage tank as an example. When the energy storage tank is arranged horizontally, in the height direction of the energy storage tank, the bottom beam 1 serves as the bottom support structure of the tank frame, and it is in direct or indirect contact with the ground. The top beam 2 is set above the bottom beam 1. The extension direction of the support member 4 is set in the height direction. The first end of the support member 4 that connects to the bottom beam 1 is its bottom end, and the second end of the support member 4 that connects to the top beam 2 is its top end.

[0040] Understandably, the aforementioned box frame includes a bottom beam 1, a top beam 2, and side beams 10. Four bottom beams 1 are connected end-to-end to form the bottom frame of the box frame, and four top beams 2 are connected end-to-end to form the top frame of the box frame. At least four side beams 10 are provided between the bottom frame and the top frame. When four side beams 10 are provided, the four side beams 10 are preferably arranged at the corners of the bottom frame and the top frame, and the two ends of the side beams 10 are connected and fixed to the bottom beam 1 and the top beam 2 respectively through corner brackets.

[0041] Specifically, multiple covering components 3 are arranged side-by-side between the bottom beam 1 and the top beam 2. These covering components 3 are mainly used to form the side walls of the energy storage tank. The side walls of the energy storage tank typically refer to the four sides: front, rear, left, and right. The number of covering components 3 is determined based on the length of the side walls of the energy storage tank and the individual size of each covering component 3. The edges of adjacent covering components 3 are closely connected or slightly overlapped, so that they can be spliced ​​together to form a continuous and complete side wall surface of the energy storage tank.

[0042] In this embodiment, during assembly, the bottom beam 1, top beam 2, and side beam 10 are first connected to build the box frame. Then, multiple support members 4 are installed at intervals on the bottom beam 1, and the bottom and top of the support members 4 are fixed to the bottom beam 1 and top beam 2, respectively. Finally, multiple cover members 3 are installed one by one between the bottom beam 1 and top beam 2. When installing the cover members 3, one edge of each cover member 3 is fixed to an adjacent support member 4, and the other edge is fixed to another adjacent support member 4. For the end cover members 3, one side is fixed to the support member 4, and the other side can be fixed to the side beam 10, or an end support structure is installed on the side beam 10, and the other side of the cover member 3 is fixed to the end support structure. Of course, a support member 4 can also be set near the side beam 10, and the edge of the cover member 3 near the side beam 10 can be fixed by the support member 4.

[0043] In the traditional installation method, the large-sized cover 3 needs to be precisely aligned with the bottom beam 1 and the top beam 2 at the same time, and the position needs to be accurate within the length of the cover 3. Due to the flexibility of the cover 3 itself and the slight installation error of the box frame, the entire positioning process of the cover 3 is cumbersome and not conducive to the installation of the cover 3.

[0044] With this design, compared to the traditional installation method, the construction personnel of this application can use the pre-installed support 4 to position the cover 3 when installing it. This makes the positioning of the cover 3 intuitive, fast and accurate, thereby reducing the adjustment time and alignment difficulty of the cover 3 and facilitating its assembly.

[0045] This configuration, while ensuring the support strength of the cover 3, can appropriately reduce the number of installation points between the cover 3 and the support 4, thereby further shortening the assembly time of the cover 3 and improving installation efficiency.

[0046] This configuration, with the support member 4 positioned along the height direction, increases the rigidity and load-bearing capacity of the enclosure frame in that direction. The support member 4 acts as the connecting skeleton for the cover member 3, providing a direct mounting position for adjacent cover members 3. Furthermore, the support member 4, located at the joint of adjacent cover members 3, effectively supports the joint, preventing deformation and misalignment of the cover members 3, and improving the overall rigidity and flatness of the energy storage enclosure's sidewalls.

[0047] In this embodiment, the cover 3 can be made of metal plate, composite material plate or other materials with sufficient strength and protective performance.

[0048] In this embodiment, the cover 3 can be a flat plate, a corrugated plate, or a composite plate with reinforcing ribs. The cover 3 is preferably made of corrugated plate, which is easy to process and can further improve the rigidity and strength of the cover 3.

[0049] In this embodiment, the support member 4 can be one or a combination of solid plates, hollow tubes, angle steel, channel steel, I-beams, and C-shaped steel. For example... Figure 3 As shown, the support member 4 is set as a solid plate, and its surface is easy to fix the edge of the cover member 3.

[0050] In one embodiment, refer to Figure 2 , Figure 3 At least one of the bottom beam 1 and the top beam 2 is provided with a limiting groove, and the end of the cover 3 extends into the limiting groove. The limiting groove is used to restrict the cover 3 from moving in the direction away from the box frame.

[0051] Specifically, the limiting groove is set on the upper surface of the bottom beam 1 and / or the lower surface of the top beam 2, that is, on the mounting surface facing the end of the cover 3, and the limiting groove on the bottom beam 1 and the limiting groove on the top beam 2 both extend along the arrangement direction of the multiple cover 3, so as to facilitate the connection between the multiple cover 3 and the box frame.

[0052] In this embodiment, the example of both the bottom beam 1 and the top beam 2 having limiting grooves is used for illustrative purposes. When installing the cover 3, the bottom of the cover 3 is first inserted into the limiting groove of the bottom beam 1 from top to bottom, so that the bottom of the cover 3 is constrained within the limiting groove of the bottom beam 1. This restricts the bottom of the cover 3 from moving away from the box frame. Then, the cover 3 is pulled upwards, so that the top of the cover 3 is inserted into the limiting groove of the top beam 2. When the top of the cover 3 is in the limiting groove of the top beam 2, the bottom of the cover 3 is still in the limiting groove of the bottom beam 1.

[0053] With this configuration, the limiting grooves of the bottom beam 1 and the top beam 2 can cooperate to restrict the movement direction of the cover 3. After the cover 3 is installed, the bottom and top of the cover 3 are located in the limiting groove of the bottom beam 1 and the limiting groove of the top beam 2, respectively. The bottom beam 1 and the top beam 2 are used to cover the two ends of the cover 3, improving the overall aesthetics of the energy storage box.

[0054] In one embodiment, the distance between the limiting groove on the bottom beam 1 and the limiting groove on the top beam 2 is less than the height of the cover 3.

[0055] With this configuration, when both the bottom beam 1 and the top beam 2 are equipped with limiting grooves, it is possible to ensure that when the bottom end of the cover 3 is inserted into the bottom beam 1, the top end of the cover 3 is inserted into the top beam 2, thereby allowing the two ends of the cover 3 to be inserted into different limiting grooves, thus improving the overall aesthetics of the enclosure.

[0056] In one embodiment, refer to Figure 2 , Figure 4 The limiting groove includes a first limiting groove 51 set on the bottom beam 1. The first limiting groove 51 is set as a C-shaped groove structure, and a first folded edge 101 and a second folded edge 102 are respectively set on both sides of the opening of the C-shaped groove structure. The first folded edge 101 and the second folded edge 102 are staggered in the horizontal direction.

[0057] Specifically, the first limiting groove 51 is a C-shaped groove structure, which is formed by a first bottom connecting section 103, a second bottom connecting section 104 and a third bottom connecting section 105 connected in sequence. The first bottom connecting section 103 and the third bottom connecting section 105 are horizontally arranged, and the second bottom connecting section 104 is vertically arranged. The other side of the first bottom connecting section 103 is connected to the first folded edge 101, and the other side of the third bottom connecting section 105 is connected to the second folded edge 102. The first folded edge 101, the second folded edge 102, the first bottom connecting section 103, the second bottom connecting section 104 and the third bottom connecting section 105 cooperate to form the bottom beam 1.

[0058] In this embodiment, the first bottom connecting segment 103 supports the first folded edge 101, and the third bottom connecting segment 105 supports the second folded edge 102. The first folded edge 101 and the second folded edge 102 are staggered in the horizontal direction. After the first limiting groove 51 is inserted into the bottom of the cover 3, the first folded edge 101 and the second folded edge 102 cooperate to limit the bottom of the cover 3. That is, the second folded edge 102 restricts the cover 3 from moving away from the first folded edge 101, thereby facilitating the installation of the cover 3. At the same time, the second folded edge 102 folds and extends upward, so that the second folded edge 102 can also cover the bottom end of the cover 3, preventing the bottom end of the cover 3 from being exposed.

[0059] The horizontal distance between the first fold 101 and the second fold 102 is at least sufficient to accommodate the sum of the thicknesses of the support member 4, the connector 6, the cover member 3, and the shielding member 7 (if present). This arrangement allows the cover member 3 to pass relatively easily between the first fold 101 and the second fold 102. After the cover member 3 is inserted into the first limiting groove 51, the first fold 101 and the second fold 102 keep the cover member 3 in a relatively vertical position. Furthermore, when the shielding member 7 is subsequently installed, it facilitates the end of the shielding member 7 to extend into the first limiting groove 51, allowing the second fold 102 to shield the end of the shielding member 7.

[0060] Furthermore, referring to Figure 4 The first limiting groove 51 is provided with multiple reinforcing ribs 106, which are connected to the first folded edge 101, the first bottom connecting section 103, the second bottom connecting section 104, and the third bottom connecting section 105. In this way, the reinforcing ribs 106 can improve the support strength of the C-shaped groove structure and the support strength of the first folded edge 101.

[0061] In one embodiment, refer to Figure 4 A connector 6 is provided between the first folded edge 101 and the support member 4, and the support member 4 is connected to the first folded edge 101 through the connector 6.

[0062] Specifically, the connector 6 is installed on the first folded edge 101 and / or the support member 4, and is used to fix the support member 4 to the first folded edge 101, that is, the bottom beam 1. Taking the installation of the connector 6 on the support member 4 as an example, the connector 6 includes a connecting plate and a connecting bolt (not shown in the figure) passing through the connecting plate. The connecting plate is fixed to the side of the support member 4 near the first folded edge 101. Corresponding holes are opened on the connecting plate and the first folded edge 101. By passing the connecting bolt through the holes on the connecting plate and the first folded edge 101, the support member 4 is fixed to the first folded edge 101.

[0063] In one embodiment, refer to Figure 4 The first fold 101 and the second fold 102 are offset in the height direction, and the top of the second fold 102 is located below the connector 6.

[0064] In this embodiment, the second folded edge 102 is disposed on one side of the first folded edge 101, and the top of the second folded edge 102 is lower than the height of the connector 6 in the vertical direction. This arrangement prevents the second folded edge 102 from obstructing the support member 4 when it is installed on the first folded edge 101, thus avoiding interference with the normal installation of the support member 4.

[0065] In one embodiment, refer to Figure 2 , Figure 5The limiting groove also includes a second limiting groove 52 provided in the top beam 2. The second limiting groove 52 is configured as a U-shaped groove structure, and the opening of the U-shaped groove structure faces the bottom beam 1. The cover 3 is inserted into the U-shaped groove structure.

[0066] Specifically, the second limiting groove 52 is configured as a U-shaped groove structure, which is formed by a first top connecting section 201, a second top connecting section 202 and a third top connecting section 203 connected in sequence. The first top connecting section 201 and the third top connecting section 203 are vertically arranged, and the second top connecting section 202 is horizontally arranged. The first top connecting section 201, the second top connecting section 202 and the third top connecting section 203 cooperate to form the top beam 2.

[0067] In this embodiment, the third top connecting section 203 is used to restrict the top of the cover 3 from moving away from the first top connecting section 201. The second limiting groove 52 adopts a U-shaped groove structure, which facilitates the insertion of the top of the cover 3 into the second limiting groove 52 and enables the top beam 2 to cover the top of the cover 3, thereby improving the overall aesthetics of the energy storage box.

[0068] Furthermore, a connector 6 is provided between the support member 4 and the first top connecting section 201, and the support member 4 is fixed to the top beam 2 through the connector 6.

[0069] Similarly, the horizontal spacing between the first top connecting segment 201 and the third top connecting segment 203 is at least sufficient to accommodate the sum of the thicknesses of the support member 4, the connector 6, the cover member 3, and the shielding member 7 (if present).

[0070] In an optional embodiment, a first limiting groove 51 is provided on the bottom beam 1 and a second limiting groove 52 is provided on the top beam 2. The groove shape of the first limiting groove 51 and the second limiting groove 52 can also provide space for the pipelines and lines of the energy storage system. The groove shape of the first limiting groove 51 and the second limiting groove 52 can also accommodate the pipelines in the limiting grooves, preventing the pipelines from being directly exposed to the outside, thus protecting the pipelines and improving the overall aesthetics of the system.

[0071] In one embodiment, refer to Figure 1 , Figure 2 , Figure 3 A shielding member 7 is provided on the side of the cover 3 away from the support member 4. The shielding member 7 is used to shield the gap at the joint of two adjacent cover members 3. Fasteners 8 are passed through the shielding member 7 and the cover 3, and the fasteners 8 are fixed to the support member 4.

[0072] Specifically, multiple shielding members 7 are provided and spaced apart. The shielding members 7 extend along the joint length of adjacent covering members 3 and cover the joint gap between two adjacent covering members 3. By completely covering the joint gap between two adjacent covering members 3 with the shielding members 7, rainwater, dust and other impurities can be prevented from entering the energy storage box, and the overall structure of the energy storage box is made more aesthetically pleasing.

[0073] Specifically, the support member 4 is provided with at least two rows of first bolt holes. When the first bolt holes on the support member 4 are provided with two rows, the edges of the two adjacent cover members 3 are respectively provided with a row of second bolt holes, which correspond to the first bolt holes respectively. The shielding member 7 is provided with two rows of third bolt holes, which correspond to the two rows of first bolt holes respectively.

[0074] Specifically, the fastener 8 includes multiple fastening bolts arranged from top to bottom. The fastening bolts can pass through the third bolt hole, the second bolt hole, and the first bolt hole in sequence, so that the shielding member 7 and the cover member 3 can be connected and fixed to the support member 4 by a single fastening bolt. This arrangement facilitates the installation of the shielding member 7, reduces the number of fastening bolts used, lowers the cost of use, and improves the assembly efficiency of the cover member 3.

[0075] In this embodiment, the blocking element 7 is either a pressure strip or a pressure plate.

[0076] In one embodiment, at least a portion of the cover 3 has ventilation holes 9.

[0077] In this embodiment, ventilation holes 9 are provided on part of the cover 3 to facilitate ventilation of the energy storage box.

[0078] Preferably, the cover 3 with ventilation holes 9 is formed by bending existing perforated plates, which has the advantages of low processing cost and more aesthetically pleasing appearance.

[0079] Secondly, this application provides a battery energy storage system, including the energy storage box of any of the above.

[0080] In this embodiment, the battery energy storage system has the aforementioned energy storage box, which includes a box frame, multiple cover pieces 3, and multiple support pieces 4. When installing the cover pieces 3, the construction personnel use the pre-installed support pieces 4 to position the cover pieces 3, making the positioning of the cover pieces 3 intuitive, fast, and accurate, thereby reducing the adjustment time and alignment difficulty of the cover pieces 3, facilitating the assembly of the cover pieces 3, and thus improving the assembly efficiency of the battery energy storage system.

[0081] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and all such modifications and variations fall within the scope defined by the appended claims.

Claims

1. An energy storage box, characterized in that, include: The box frame includes a bottom beam (1) and a top beam (2); Multiple coverings (3) are arranged side by side between the bottom beam (1) and the top beam (2), and the multiple coverings (3) cooperate to form the side wall of the energy storage box; Multiple support members (4) are spaced apart. The first end of each support member (4) is fixed to the bottom beam (1), and the second end of each support member (4) is fixed to the top beam (2). Each support member (4) is disposed between two adjacent cover members (3), and both adjacent cover members (3) are fixed to the support member (4).

2. The energy storage box according to claim 1, characterized in that, At least one of the bottom beam (1) and the top beam (2) is provided with a limiting groove, and the end of the cover (3) extends into the limiting groove. The limiting groove is used to restrict the cover (3) from moving in a direction away from the box frame.

3. The energy storage box according to claim 2, characterized in that, The distance between the limiting groove on the bottom beam (1) and the limiting groove on the top beam (2) is less than the height of the cover (3).

4. The energy storage box according to claim 2, characterized in that, The limiting groove includes a first limiting groove (51) disposed on the bottom beam (1); The first limiting groove (51) is configured as a C-shaped groove structure. The two sides of the opening of the C-shaped groove structure are respectively provided with a first folded edge (101) and a second folded edge (102). The first folded edge (101) and the second folded edge (102) are offset in the horizontal direction.

5. The energy storage box according to claim 4, characterized in that, A connector (6) is provided between the first folded edge (101) and the support member (4), and the support member (4) is connected to the first folded edge (101) through the connector (6).

6. The energy storage box according to claim 5, characterized in that, The first fold (101) and the second fold (102) are offset in the height direction, and the top end of the second fold (102) is located below the connector (6).

7. The energy storage box according to claim 2, characterized in that, The limiting groove also includes a second limiting groove (52) disposed on the top beam (2); The second limiting groove (52) is configured as a U-shaped groove structure, the opening of the U-shaped groove structure faces the bottom beam (1), and the cover (3) is inserted into the U-shaped groove structure.

8. The energy storage tank according to any one of claims 1-7, characterized in that, A shielding member (7) is provided on the side of the cover (3) away from the support member (4). The shielding member (7) is used to shield the gap at the joint of two adjacent cover members (3). Fasteners (8) are provided on the shielding member (7) and the cover (3). The fasteners (8) are fixed to the support member (4).

9. The energy storage tank according to any one of claims 1-7, characterized in that, At least part of the cover (3) has ventilation holes (9).

10. A battery energy storage system, characterized in that, Includes the energy storage box as described in any one of claims 1-9.

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