Battery box and energy storage device

Abstract

The utility model relates to a battery box and an energy storage device, and relates to the technical field of new energy batteries. The utility model provides a battery box. The battery box comprises a box body, a bracket, a vacuum compression piece and a conical piece, a boundary beam part is formed on the periphery of the box body; edge beam parts on the two sides of the box body are connected with a bracket in a limiting mode, a limiting plate is arranged on the bracket, and an assembly gap is reserved between the limiting plate and the top faces of the edge beam parts. The vacuum compression part is arranged on the edge beam part in a matched mode and located in the assembly gap; the conical part is arranged on the bracket and used for puncturing and releasing the vacuum compression part. By arranging the conical part and the vacuum compression part, the conical part on the bracket punctures the vacuum compression part, the compressed vacuum compression part is instantly released and expanded and fills an assembly gap, the released vacuum compression part generates resilience force and compresses the box body in the vertical direction, and the stability of the box body in the transportation process is improved; and meanwhile, the vacuum compression piece can play a certain buffering protection role on the box body during vibration.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy batteries, and in particular to a battery box and an energy storage device. Background Art

[0002] Current energy storage systems primarily take the form of integrated energy storage cabinets and containers, integrating battery packs, PCS, thermal management systems, and fire protection systems. These cabinets or containers typically require long-distance transportation from the production plant to the project site, subjecting the system to prolonged vibration and impact during transportation. If components within the system are not securely secured during this process, they may be damaged.

[0003] Among them, the battery pack is the most core component of the energy storage system and also the heaviest component. Therefore, the fixation of the battery pack is particularly important. If the battery pack is not fixed firmly, it may cause damage to the battery pack. It may also cause damage to the entire system structure due to vibration and impact of the battery pack.

[0004] The inventors discovered that current battery pack mounting methods fail to fully constrain the battery pack, particularly in the vertical direction. Vibration or impact can cause the battery pack to vibrate vertically. When transporting battery packs over long distances, prolonged vibration and impact can significantly damage the battery pack or the cluster frame, impacting the performance and service life of the entire energy storage system. Utility Model Content

[0005] The purpose of the present utility model includes providing a battery box and an energy storage device, which can prevent the box body from jumping in the vertical direction and also have a certain buffering and protective effect.

[0006] The embodiment of the present utility model can be implemented as follows:

[0007] In the first aspect, the utility model provides a battery box, comprising a box body, a bracket, a vacuum compression part and a vertebral part; the periphery of the box body forms a side beam portion; the side beam portions on both sides of the box body are limitedly connected to the bracket, and a limiting plate is provided on the bracket, and an assembly gap is left between the limiting plate and the top surface of the side beam portion; the vacuum compression part is cooperatedly arranged on the side beam portion, and the vacuum compression part is located in the assembly gap; the vertebral part is arranged on the bracket, and the vertebral part is used to puncture and release the vacuum compression part.

[0008] Optionally, the vacuum compression component includes a packaging bag and foam, the foam is arranged in the packaging bag, and the packaging bag is evacuated by a vacuum compression packaging device to compress the foam and form the vacuum compression component.

[0009] Optionally, the compression amount of the foam is expressed as follows:

[0010] (h1-h2) / h1*100%

[0011] Wherein, h1 is the initial thickness of the foam, and h2 is the thickness of the foam after being compressed.

[0012] Optionally, the foam is in a vacuum compression state, the compression amount of the foam is 20%-30%, and the thickness of the foam is 2-3 mm;

[0013] After the vacuum compression member is punctured, the compression amount of the foam is 50%-60%, and the thickness of the foam is 5-6 mm.

[0014] Optionally, the bracket includes a joist and a support plate connected and vertically arranged, the top of the joist is bent to form a top plate, and the top plate is parallel to the support plate;

[0015] The limiting plate is arranged at the rear end of the bracket.

[0016] Optionally, the limiting plate includes a first limiting portion and a second limiting portion arranged vertically, wherein the first limiting portion is connected to the rear end of the joist and the supporting plate and is arranged vertically, and the second limiting portion is connected to the joist and is arranged vertically, and is arranged toward the front end of the supporting plate;

[0017] The assembly gap is left between the first limiting portion, the second limiting portion and the top surface of the side beam portion.

[0018] Optionally, the vertebral member is arranged on the first limiting portion.

[0019] Optionally, the vacuum compression member includes an integrated first body and a second body, the first body is attached to the rear side wall of the side beam portion, and the second body is attached to the top wall of the side beam portion;

[0020] The length of the second body at least covers a portion of the edge beam portion.

[0021] Optionally, a base is further provided at the tail end of the side beam portion, and the vacuum compression component is adhered to the top surface of the base.

[0022] In a second aspect, the present invention provides an energy storage device, comprising the battery box and cluster rack described in any one of the above items, wherein the bracket is connected to the cluster rack.

[0023] The battery box and energy storage device provided by the embodiments of the present invention have the following beneficial effects:

[0024] By arranging the conical parts and vacuum compression parts, the conical parts on the bracket puncture the vacuum compression parts, and the compressed vacuum compression parts instantly release and expand to fill the assembly gap formed by the limit plate and the side beam. The released vacuum compression parts generate a certain rebound force and press the box body in the vertical direction, thereby improving the stability of the box body during long-distance transportation; at the same time, during vibration, the released vacuum compression parts can play a certain buffering and protective role for the box body, effectively solving the problem of damage to the battery box or energy storage device caused by vibration and impact during land or sea transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 A schematic diagram of the structure of the battery box provided in this embodiment;

[0027] Figure 2 A schematic structural diagram of the box provided in this embodiment;

[0028] Figure 3 for Figure 2 A partial schematic diagram of the middle part;

[0029] Figure 4 A schematic structural diagram of the bracket provided in this embodiment;

[0030] Figure 5 for Figure 2 Partial schematic diagram of B in the middle;

[0031] Figure 6 A schematic structural diagram of the vacuum compression element provided in this embodiment;

[0032] Figure 7 A cross-sectional view of the installation of the bracket and the box provided in this embodiment;

[0033] Figure 8 A schematic structural diagram of the vacuum compression component provided in this embodiment in a vacuum compression state;

[0034] Figure 9 A cross-sectional view of the bracket and box provided in this embodiment after installation;

[0035] Figure 10 This is a schematic diagram of the structure of the vacuum compression component provided in this embodiment after being punctured.

[0036] Icon: 010-battery box; 100-box body; 101-side beam; 110-upper box body; 120-lower box body; 130-panel; 140-base; 200-bracket; 210-support beam; 211-top plate; 220-support plate; 230-limiting plate; 231-first limiting part; 232-second limiting part; 240-front end connecting part; 250-support seat; 300-vacuum compression part; 301-first body; 302-second body; 310-foam; 320-packaging bag; 400-vertebral part. DETAILED DESCRIPTION

[0037] In related technologies, the battery pack is the most core component of the energy storage system and also the heaviest component. Therefore, the fixation of the battery pack is particularly important. If the battery pack is not fixed firmly, it may cause damage to the battery pack. It may also cause damage to the entire system structure due to vibration and impact of the battery pack.

[0038] The current conventional method for securing battery packs is to install a limit plate on the upper side wall of the bracket to limit the vertical position of the lower box frame of the battery box. Due to assembly and manufacturing tolerance considerations, a 3-8mm assembly gap is usually left between the limit plate and the battery pack box.

[0039] The inventors discovered that current battery pack fastening methods, due to the need for assembly clearance, cannot fully constrain the battery pack, particularly in the vertical direction. Vibration or impact can cause the battery pack to vibrate vertically. When transporting battery packs over long distances, prolonged vibration and impact can significantly damage the battery pack and the cluster frame, impacting the performance and service life of the entire energy storage system.

[0040] In response to the above problems, the present invention provides a battery box 010 and an energy storage device, which can prevent the box body 100 from jumping in the vertical direction and also have a certain buffering protection effect, thereby improving the above problems.

[0041] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0042] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are intended to fall within the scope of protection of the present invention.

[0043] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0044] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0045] In addition, the terms "first", "second", etc., if used, are merely used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0046] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention can be combined with each other.

[0047] The overall structure, working principle and technical effects of the battery box 010 and energy storage device provided by the present invention are described in detail below through embodiments and in conjunction with the accompanying drawings.

[0048] This embodiment provides a battery box 010 and an energy storage device, which can prevent the box body 100 from jumping in the vertical direction, and at the same time has a certain buffering protection effect, which can effectively solve the problem of damage to the battery box 010 or the energy storage device caused by vibration and impact during land or sea transportation.

[0049] Among them, the energy storage device can be an energy storage system such as an integrated energy storage cabinet, a station-type battery cluster, and an energy storage container.

[0050] In this embodiment, the energy storage device includes a battery box 010 and a cluster rack, and the bracket 200 is connected to the cluster rack.

[0051] In this embodiment, the energy storage device may be an energy storage container, which may carry multiple battery boxes 010 and may also be equipped with other additional components to facilitate management or control of the internal environment of the energy storage container.

[0052] In this embodiment, the energy storage device includes a cluster frame; the structure of the cluster frame can be selected according to the installation location and size of the energy storage device.

[0053] In this embodiment, the energy storage device includes a battery box 010 .

[0054] Please refer to Figure 1 The utility model proposes a battery box 010, including a box body 100, a bracket 200, a vacuum compression component 300 and a vertebral component 400; the periphery of the box body 100 forms a side beam portion 101; the side beam portions 101 on both sides of the box body 100 are limitedly connected with the bracket 200, and a limiting plate 230 is provided on the bracket 200, and an assembly gap is left between the limiting plate 230 and the top surface of the side beam portion 101; the vacuum compression component 300 is cooperatively arranged on the side beam portion 101, and the vacuum compression component 300 is located in the assembly gap; the vertebral component 400 is arranged on the bracket 200, and the vertebral component 400 is used to puncture and release the vacuum compression component 300.

[0055] It can be understood that in the process of pushing the box body 100 along the brackets 200 on both sides, by setting the vertebral parts 400 and the vacuum compression parts 300, the vertebral parts 400 on the brackets 200 puncture the vacuum compression parts 300, and the compressed vacuum compression parts 300 are instantly released and expanded to fill the assembly gap formed by the limit plate 230 and the side beam part 101. The released vacuum compression parts 300 generate a certain rebound force and press the box body 100 in the vertical direction, thereby improving the stability of the box body 100 during long-distance transportation; at the same time, during vibration, the released vacuum compression parts 300 can play a certain buffering and protective role for the box body 100.

[0056] In this embodiment, the battery box 010 includes a box body 100 .

[0057] In this embodiment, please refer to Figure 1 and Figure 2 The box body 100 includes a detachably connected upper box body 110 and a lower box body 120; wherein, the upper box body 110 is a rectangular box body 100 structure with an open end on one side, and the upper box body 110 forms a side beam along the open end, and the side beam is provided with a mounting hole. The connecting piece passes through the side beam mounting hole of the upper box body 110 to connect and fix with the lower box body 120 to form a accommodating cavity for accommodating the battery module; one side of the upper box body 110 is fixed with the panel 130 by the connecting piece.

[0058] The side beam of the upper box body 110 and the upper top surface of the lower box body 120 are connected through a connecting piece to form a side beam portion 101 .

[0059] The front end of the box body 100 is an end where the fixing panel 130 is disposed, and the other end is a rear end.

[0060] In this embodiment, please refer to Figure 3 A base 140 is provided at the tail end of the side beam 101. The base 140 is a rectangular block structure. The base 140 can be fixed to the side beam 101 of the box body 100 by welding, bonding, riveting or screws. The top surface of the base 140 can provide a plane for pasting the vacuum compression component 300.

[0061] In this embodiment, the battery box 010 further includes a bracket 200 .

[0062] Among them, the two brackets 200 are respectively arranged at intervals relative to the width of the box body 100 and fixed on the cluster frame. After the side beams 101 on both sides of the battery box 010 are pushed in along the two brackets 200 and fixed by connecting parts, the brackets 200 can fix and limit the battery box 010.

[0063] In this embodiment, please refer to Figure 4 The bracket 200 includes a supporting beam 210 and a supporting plate 220 that are connected and vertically arranged. The top of the supporting beam 210 is bent to form a top plate 211, and the top plate 211 is parallel to the supporting plate 220; the limiting plate 230 is arranged at the tail end of the bracket 200, and an assembly gap is left between the limiting plate 230 and the top surface of the side beam portion 101.

[0064] Among them, one end of the support plate 220 is the front end, and the other end of the support plate 220 is the tail end. When the battery box 010 is installed, it is matched and installed along the front end of the support plate 220 to the tail end.

[0065] In this embodiment, please refer to Figure 5 The limiting plate 230 includes a first limiting portion 231 and a second limiting portion 232 which are arranged vertically. The first limiting portion 231 is connected to the tail end of the joist 210 and the support plate 220 and is arranged vertically. The second limiting portion 232 is connected to the joist 210 and is arranged vertically. The second limiting portion 232 is arranged toward the front end of the support plate 220. An assembly gap is left between the first limiting portion 231 and the second limiting portion 232 and the top surface of the side beam portion 101.

[0066] In this embodiment, please refer to Figure 4 The bracket 200 further includes a support base 250. The support base 250 is a vertical structural member. One vertical end of the support base 250 is fixed to the cluster frame via a connector, and the other end is fixed to the bottom of the support plate 220. Providing multiple support bases 250 can increase the stability of the bracket 200; for example, four, three, or two support bases 250 can be provided at the bottom of the support plate 220.

[0067] In this embodiment, please refer to Figure 4The bracket 200 further includes a front connecting portion 240, which is disposed at the front end of the support plate 220. The front connecting portion 240 is a connecting plate and is disposed perpendicular to the support plate 220 and the bracket 200. One end of the front connecting portion 240 is detachably connected to the support base 250 of the bracket 200 via a connector, and the other end is detachably connected to the lower case 120 of the case 100 via a connector.

[0068] In this embodiment, the battery box 010 further includes a cone-shaped member 400 .

[0069] The vertebral piece 400 is used to puncture the vacuum compression piece 300 so that the vacuum compression piece 300 can release the expansion.

[0070] In the implementation of this city, please refer to Figure 5 The vertebral member 400 is disposed on the first limiting portion 231 .

[0071] Alternatively, the vertebral member 400 may be a vertebral needle.

[0072] It is worth mentioning that in most prior art designs, a rigid assembly gap is reserved between the bracket 200 and the side beam portion 101 of the box body 100. Consequently, after the box body 100 is installed, the bracket 200 is unable to fully compress the box body 100 vertically. Therefore, in this embodiment, a vacuum compression element 300 is provided in the assembly gap to vertically compress the box body 100 and the bracket 200.

[0073] In this embodiment, the battery box 010 includes a vacuum compression element 300 .

[0074] Among them, after the vacuum compression part 300 is punctured by the vertebral part 400, the compressed vacuum compression part 300 is instantly released and expanded to fill the assembly gap formed by the limit plate 230 and the side beam part 101. The released vacuum compression part 300 generates a certain rebound force and presses the box body 100 in the vertical direction, thereby improving the stability of the box body 100 during long-distance transportation; at the same time, during vibration, the released vacuum compression part 300 can play a certain buffering and protective role for the box body 100.

[0075] In this embodiment, please refer to Figure 3 The vacuum compression component 300 is disposed at the rear end of the box body 100 and is disposed on the base 140. The vacuum compression component 300 can be fixed on the top surface of the base 140 by bonding.

[0076] In this embodiment, please refer to Figure 6The vacuum compression component 300 includes an integrated first body 301 and a second body 302 . The first body 301 is attached to the side beam portion 101 and the rear side wall of the base 140 , and the second body 302 is attached to the top surface of the base 140 .

[0077] It is understandable that please refer to Figure 9 After the vacuum compression component 300 is punctured by the vertebral component 400, the vacuum compression component 300 is instantly released and expanded to fill the limiting plate 230. The first body 301 fills the assembly gap formed by the side beam portion 101 and the first limiting portion 231. The second limiting portion 232 fills the assembly gap formed by the side beam portion 101 and the second limiting portion 232, thereby pressing and constraining the box body 100.

[0078] In this embodiment, please refer to Figure 6 The vacuum compression component 300 includes a packaging bag 320 and foam 310. The foam 310 is arranged in the packaging bag 320. The packaging bag 320 is vacuumed by a vacuum compression packaging device so that the foam 310 is compressed, vacuumed, and packaged in the packaging bag 320 to form a vacuum compression component 300.

[0079] The packaging bag 320 is usually a 0.1 mm thick film material, such as PET, PC, PE, PP, etc.

[0080] The foam 310 is an elastomeric material, typically silicone foam 310, but may also be MPP, PU foam 310, CR foam 310, NR foam 310, EVA foam 310, EPDM foam 310, PE foam 310, XPE foam 310, or PVC foam 310. The foam 310 is an elastic cushioning material that can absorb certain manufacturing and assembly tolerances and provide a certain degree of cushioning protection when the box 100 vibrates.

[0081] In this embodiment, the compression relationship of the foam 310 is:

[0082] (h1-h2) / h1*100%

[0083] Here, h1 is the initial thickness of the foam 310 , and h2 is the thickness of the foam 310 after being compressed.

[0084] Therefore, by selecting a reasonable material, thickness, and density for the foam 310 and combining it with the material CFD curve, a reasonable vacuum packaging compression amount and a reasonable compression amount after release can be designed to obtain a reasonable restraining force. At the same time, by setting the parameters of the foam 310, such as the material, compression amount, density, and thickness, a reasonable compression amount and rebound force (compression force) can be set.

[0085] In this embodiment, please refer to Figure 7 and Figure 8The foam 310 is in a vacuum-compressed state, with a compression amount of 20%-30% and a thickness of 2-3 mm. During the insertion of the battery pack 010 into the bracket 200, the thickness of the foam 310 in the vacuum-compressed state is less than the assembly gap.

[0086] In this embodiment, please refer to Figure 9 and Figure 10 After the vacuum compression element 300 is punctured, the foam 310 is compressed by 50%-60%, and the thickness of the foam 310 is 5-6 mm. After the vacuum compression element 300 is punctured by the vertebral element 400, the vacuum compression element 300 instantly expands and fills the assembly gap formed by the limiting plate 230 and the side beam 101. At this time, the foam 310 in the vacuum compression element 300 still maintains a certain amount of compression, and the rebound force of the foam 310 can exert a compressive and restraining force on the box body 100.

[0087] For example, in this embodiment, please refer to Figure 7 and Figure 8 The initial thickness of the foam 310 is 10 mm. When the foam 310 is in a vacuum compression state, the compression amount of the foam 310 is 25%, and the thickness of the foam 310 in this state is 2.5 mm.

[0088] For further information, please refer to Figure 9 and Figure 10 After the vacuum compression member 300 is punctured, the foam 310 is in a vacuum release state and the compression amount of the foam 310 is 55%; the thickness of the foam 310 in this state is 5.5 mm.

[0089] It is understandable that when the battery pack is installed in place, the foam 310 releases the vacuum state and expands, and the remaining compression after expansion will still generate a rebound force to press the box body 100.

[0090] It's worth noting that the length of the foam 310 in the vacuum compression element 300 can be designed based on the required compression force. In this embodiment, a reasonable length can be designed to compress only the rear end of the box body 100. Of course, in other embodiments, the longest length can cover the entire front and rear ends of the side beams 101 of the box body 100, cooperating with the top plate 211 of the bracket 200 to evenly compress the box body 100.

[0091] The working principle and process of the device A provided in the embodiment of the utility model are as follows:

[0092] The vacuum compression component 300 is pasted and wrapped on the tail end of the side beam portion 101 of the box body 100 .

[0093] Fix the upper bracket 200 on the cluster frame through the support base 250 in turn, please refer to Figure 7 and Figure 8, insert the side beams 101 of the box 100 into place along the brackets 200 on both sides; Figure 9 and Figure 10 The vertebral part 400 punctures the vacuum compression part 300, and the compressed vacuum compression part 300 is instantly released and expanded to fill the assembly gap formed by the limiting plate 230 and the side beam part 101. After the release, the vacuum compression part 300 generates a certain rebound force and presses the box body 100 in the vertical direction.

[0094] Finally, the front connecting plate is connected to lock the side beam portion 101 of the box body 100 and the bracket 200 at the same time, so that the box body 100, the vacuum compression component 300 and the bracket 200 are pressed and limited to each other.

[0095] In summary, the battery box 010 and energy storage device provided by the embodiment of the present invention, by setting the vertebral part 400 and the vacuum compression part 300, the vertebral part 400 on the bracket 200 punctures the vacuum compression part 300, and the compressed vacuum compression part 300 is instantly released and expanded to fill the assembly gap formed by the limit plate 230 and the side beam part 101. The released vacuum compression part 300 generates a certain rebound force and presses the box body 100 in the vertical direction, thereby improving the stability of the box body 100 during long-distance transportation; at the same time, during vibration, the released vacuum compression part 300 can play a certain buffering and protective role on the box body 100, effectively solving the problem of damage to the battery box 010 or the energy storage device caused by vibration and impact during land or sea transportation.

[0096] The above is only a specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any changes or replacements that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed in the present invention should be covered by the protection scope of the present invention.

Claims

1. A battery box, characterized in that: include: A box body, wherein the periphery of the box body forms a side beam portion; The bracket, the side beams on both sides of the box body are connected to the bracket in a limiting manner, and a limiting plate is provided on the bracket, and an assembly gap is left between the limiting plate and the top surface of the side beam; A vacuum compression component, wherein the vacuum compression component is provided on the side beam portion and is located in the assembly gap; A vertebral member is provided on the bracket and is used for puncturing and releasing the vacuum compression member.

2. The battery box according to claim 1, characterized in that: The vacuum compression component includes a packaging bag and foam. The foam is arranged in the packaging bag. The packaging bag is evacuated by a vacuum compression packaging device so that the foam is compressed to form the vacuum compression component.

3. The battery box according to claim 2, characterized in that: The compression relationship of the foam is: (h1-h2) / h1*100% Wherein, h1 is the initial thickness of the foam, and h2 is the thickness of the foam after being compressed.

4. The battery box according to claim 3, characterized in that: The foam is in a vacuum compression state, the compression amount of the foam is 20%-30%, and the thickness of the foam is 2-3 mm; After the vacuum compression member is punctured, the compression amount of the foam is 50%-60%, and the thickness of the foam is 5-6 mm.

5. The battery box according to claim 1, characterized in that: The bracket includes a supporting beam and a supporting plate connected and vertically arranged, the top of the supporting beam is bent to form a top plate, and the top plate is parallel to the supporting plate; The limiting plate is arranged at the rear end of the bracket.

6. The battery box according to claim 5, characterized in that: The limiting plate includes a first limiting portion and a second limiting portion arranged vertically, wherein the first limiting portion is connected to the rear end of the support beam and the support plate and is arranged vertically, and the second limiting portion is connected to the support beam and is arranged vertically, and is arranged toward the front end of the support plate; The assembly gap is left between the first limiting portion, the second limiting portion and the top surface of the side beam portion.

7. The battery box according to claim 6, characterized in that: The vertebral member is arranged on the first limiting portion.

8. The battery box according to claim 6, characterized in that: The vacuum compression member includes an integrated first body and a second body, wherein the first body is attached to the rear side wall of the side beam portion, and the second body is attached to the top wall of the side beam portion; The length of the second body at least covers a portion of the edge beam portion.

9. The battery box according to claim 1, characterized in that: The tail end of the side beam portion is further provided with a base, and the vacuum compression component is pasted on the top surface of the base.

10. An energy storage device, characterized in that: include: The battery box according to any one of claims 1 to 9; A cluster frame, wherein the bracket is connected to the cluster frame.

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