Battery pack and energy storage system

Abstract

The utility model relates to the technical field of battery packs, and discloses a battery pack and an energy storage system. The box body comprises a maintenance opening, and the maintenance opening is formed in a front panel of the box body; a battery module is fixed in the box body, and the battery module and the front panel are arranged at an interval; the mounting bracket is positioned between the maintenance port and the battery module and is fixed on the battery module; the maintenance work of the fire-fighting device can be completed at the position of the maintenance opening in the front panel, and the maintenance efficiency of the fire-fighting device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery packs, and in particular to a battery pack and an energy storage system. Background Art

[0002] There are usually multiple battery modules in a battery pack, and the battery module is integrated with multiple battery cells. The battery cells are easily stimulated by the external environment and their own manufacturing defects, which may cause thermal runaway and fire. Installing fire-fighting devices in the battery pack is one of the effective ways to reduce the consequences of thermal runaway of the battery pack. Since the shelf life of the fire-fighting devices in the battery pack is usually three to five years, and the life of the battery pack is generally about twenty years, the fire-fighting devices need to be maintained many times during the life cycle of the battery pack; the traditional battery pack consists of a sealed box body composed of a box body and an upper cover, and the battery module and the fire-fighting device are both located in the sealed box body. Since the battery pack is generally placed on a cluster rack, when maintaining the fire-fighting device, the battery pack needs to be removed from the cluster rack and the upper cover of the battery pack needs to be opened to maintain the fire-fighting device. The operation is cumbersome and inefficient. Utility Model Content

[0003] In view of this, the utility model provides a battery pack and an energy storage system to solve the problem of complicated operation and low efficiency in maintaining fire-fighting equipment.

[0004] In the first aspect, the utility model provides a battery pack, comprising a box body and a mounting bracket; the box body comprises a maintenance port, which is arranged on the front panel of the box body; a battery module is fixed inside the box body, and the battery module is spaced apart from the front panel; the mounting bracket is located between the maintenance port and the battery module, and is fixed on the battery module; the side of the mounting bracket close to the maintenance port is suitable for installing a fire-fighting device.

[0005] Beneficial effect: By fixing the mounting bracket on the battery module, the installation stability of the mounting bracket is ensured; since the maintenance port is arranged on the front panel of the box body, the mounting bracket corresponds to the position of the maintenance port. When the fire-fighting device in the battery pack needs to be repaired, there is no need to remove the battery pack from the cluster frame. The maintenance work of the fire-fighting device can be completed only from the maintenance port on the front panel, thereby improving the maintenance efficiency of the fire-fighting device.

[0006] In an optional embodiment, an end plate is provided on a side of the battery module close to the front panel; the mounting bracket includes a side panel structure and a top panel; the side panel structure is detachably connected to a side of the end panel close to the maintenance port, and the side of the side panel structure close to the maintenance port is suitable for installing the fire-fighting device; the top panel is connected to the top end of the side panel structure, is perpendicular to the side panel structure and extends in a direction close to the end panel, and is located above the end panel, and the top panel is detachably connected to the end panel.

[0007] Beneficial effects: By setting up the side panel structure, the fire-fighting device can be installed and fixed; by setting up the top plate, a fixed connection between the mounting bracket and the battery module can be achieved. Since the top plate is located above the end plate, its structural setting is reasonable, which reduces the space occupied by the mounting bracket; and since the side panel structure and the top end are detachably connected to the end plate of the battery module, the disassembly and assembly of the mounting bracket is convenient, and the size of the mounting bracket can be adjusted accordingly according to the specifications of different fire-fighting devices, thereby achieving compatibility with different fire-fighting devices and reducing changes in the structure inside the battery pack.

[0008] In an optional embodiment, the side panel structure includes a first mounting surface, a second mounting surface and a connecting assembly; the first mounting surface is detachably connected to the end plate via a first fastener; the second mounting surface and the first mounting surface are spaced apart from each other along the length direction of the box body, and the second mounting surface is located on the side of the first mounting surface away from the battery module; the second mounting surface is suitable for mounting the fire-fighting device; the first mounting surface and the second mounting surface are connected via the connecting assembly.

[0009] Beneficial effects: By setting the first mounting surface, the connection between the side panel structure and the end plate can be achieved; by setting the second mounting surface, the fire-fighting device can be installed and fixed; because the first mounting surface and the second mounting surface are spaced apart along the length direction of the box body, and the second mounting surface is located on the side of the first mounting surface away from the battery module, there is a height difference between the first mounting surface and the second mounting surface in the length direction of the box body, which can avoid the first fastener protruding from the second mounting surface, thereby ensuring the tightness of the connection between the fire-fighting device and the second mounting surface.

[0010] In an optional embodiment, the fire-fighting device is detachably connected to the second mounting surface.

[0011] Beneficial effect: Since the fire-fighting device is detachably connected to the second mounting surface, it is possible to fix fire-fighting devices of different forms or specifications, thereby achieving compatibility with multiple types of fire-fighting devices and reducing the development cost of the battery pack.

[0012] In an optional embodiment, the battery modules are provided with at least two groups, the at least two groups of battery modules are arranged in sequence along the width direction of the box, and the mounting bracket is fixedly connected to two adjacent groups of battery modules.

[0013] Beneficial effects: Since the mounting bracket is fixedly connected to two adjacent groups of battery modules, the structural rigidity of the two adjacent groups of battery modules can be improved; since the expansion force of the battery cells in different battery modules is not completely consistent during the use of the battery pack, the performance of the two adjacent groups of battery modules in resisting the expansion force of the battery cells can also be improved by fixing the mounting bracket to the two adjacent groups of battery modules.

[0014] In an optional embodiment, the first mounting surface includes a first mounting plate and a second mounting plate, the second mounting surface includes a third mounting plate and a fourth mounting plate, the first mounting plate, the third mounting plate, the second mounting plate and the fourth mounting plate are arranged in sequence along the width direction of the box body; the first mounting plate and the second mounting plate are respectively detachably connected to two adjacent groups of battery modules.

[0015] Beneficial effect: Through the arrangement of the first mounting plate and the second mounting plate, a detachable connection between the side panel structure and the two groups of battery modules can be achieved; and because the first mounting plate, the third mounting plate, the second mounting plate and the fourth mounting plate are arranged in sequence along the width direction of the box body, compared with the adjacent arrangement of the first mounting plate and the second mounting plate, the space occupied by the side panel structure is saved and the size of the mounting bracket is reduced.

[0016] In an optional embodiment, the battery pack also includes an end plate fixing structure, which is arranged below the end plate, and at least two fixing holes are provided on the top plate; the end plate is provided with through holes along the vertical direction, and the through holes on at least two adjacent groups of battery modules are respectively arranged corresponding to at least two fixing holes, and at least two threaded holes are provided on the end plate fixing structure, and the threaded holes are arranged corresponding to the through holes; the second fastener passes through the fixing hole and the through hole in turn, and is threadedly connected to the threaded hole.

[0017] In an optional embodiment, the side panel structure further includes a reinforcing component, and the reinforcing component is disposed between the first mounting surface and the connecting component; and the reinforcing component is disposed between the second mounting surface and the connecting component.

[0018] Beneficial effect: By providing a reinforcing component, the thickness of the mounting bracket can be reduced, and the strength and flatness of the first mounting surface and the second mounting surface can be improved.

[0019] In an optional embodiment, a fire-fighting wire harness fixing device is further included, and the fire-fighting wire harness fixing device is fixed on the second mounting surface.

[0020] Beneficial effect: By setting up a fire harness fixing device, the communication harness of the fire-fighting device can be fixed, reducing the setting of harness fixing points in the battery pack and improving the neatness of the harness in the battery pack.

[0021] In a second aspect, the utility model also provides an energy storage system, including the above-mentioned battery pack.

[0022] Because the energy storage system includes a battery pack and has the same effect as the battery pack, it will not be described here in detail. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the related technologies, the drawings required for use in the specific implementation methods or the related technical descriptions will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1 This is a front view of a battery pack according to an embodiment of the utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the connection between the mounting bracket and the battery module of the embodiment of the utility model;

[0026] Figure 3 It is an exploded schematic diagram of the mounting bracket, battery module and fire-fighting device of an embodiment of the utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the mounting bracket of an embodiment of the utility model;

[0028] Figure 5 It is a schematic structural diagram of a cover plate, a sealing strip and a box body according to an embodiment of the utility model.

[0029] Description of reference numerals:

[0030] 1. Box body; 11. Maintenance port; 12. Front panel; 13. Battery module; 131. End plate; 2. Mounting bracket; 21. Side panel structure; 211. First mounting surface; 2111. First mounting plate; 2112. Second mounting plate; 212. Second mounting surface; 2121. Third mounting plate; 2122. Fourth mounting plate; 213. Connecting assembly; 2131. Connecting plate; 214. Reinforcing assembly; 22. Top plate; 221. Fixing hole; 3. Fire-fighting device; 4. First fastener; 5. Second fastener; 6. Fire-fighting harness fixing device; 7. Cover plate; 8. Sealing strip. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0032] Combine the following Figures 1 to 5 , describing an embodiment of the utility model.

[0033] According to an embodiment of the utility model, on the one hand, a battery pack is provided, including a box body 1 and a mounting bracket 2; the box body 1 includes a maintenance port 11, and the maintenance port 11 is arranged on a front panel 12 of the box body 1; a battery module 13 is fixed inside the box body 1, and the battery module 13 is spaced apart from the front panel 12; the mounting bracket 2 is located between the maintenance port 11 and the battery module 13, and is fixed on the battery module 13; the side of the mounting bracket 2 close to the maintenance port 11 is suitable for installing a fire-fighting device 3.

[0034] By fixing the mounting bracket 2 on the battery module 13, the installation stability of the mounting bracket 2 is ensured; since the maintenance port 11 is arranged on the front panel 12 of the box body 1, the mounting bracket 2 corresponds to the position of the maintenance port 11. When the fire-fighting device 3 in the battery pack needs to be repaired, there is no need to remove the battery pack from the cluster frame. The maintenance work of the fire-fighting device 3 can be completed only from the maintenance port 11 on the front panel 12, thereby improving the maintenance efficiency of the fire-fighting device 3.

[0035] In one embodiment, an end plate 131 is provided on a side of the battery module 13 close to the front panel 12; the mounting bracket 2 includes a side panel structure 21 and a top panel 22; the side panel structure 21 is detachably connected to a side of the end panel 131 close to the maintenance port 11, and the side of the side panel structure 21 close to the maintenance port 11 is suitable for installing the fire-fighting device 3; the top panel 22 is connected to the top end of the side panel structure 21, is perpendicular to the side panel structure 21 and extends in a direction close to the end panel 131, and is located above the end panel 131, and the top panel 22 is detachably connected to the end panel 131.

[0036] By setting the side panel structure 21, the installation and fixation between the fire-fighting device 3 and the battery module 13 can be achieved; by setting the top plate 22, the fixed connection between the mounting bracket 2 and the battery module 13 can be further strengthened. Since the top plate 22 is located above the end plate 131, its structural setting is reasonable, which reduces the space occupied by the mounting bracket 2; and since the side panel structure 21 and the top end are detachably connected to the end plate 131 of the battery module 13, the disassembly and assembly of the mounting bracket 2 is convenient, and the size of the mounting bracket 2 can be adjusted accordingly according to the specifications of different fire-fighting devices 3, thereby achieving compatibility with different fire-fighting devices 3 and reducing changes in the structure inside the battery pack.

[0037] Specifically, the orthographic projection area of ​​the mounting bracket 2 on the front panel 12 can be larger than the area of ​​the maintenance port 11, or smaller than the area of ​​the maintenance port 11, or equal to the area of ​​the maintenance port 11; preferably, the orthographic projection area of ​​the mounting bracket 2 on the front panel 12 is smaller than the area of ​​the maintenance port 11. Without removing the battery pack from the cluster rack, the mounting bracket 2 can be disassembled and assembled, and the fire-fighting device 3 can be maintained and disassembled, thereby improving the efficiency of maintenance and disassembly of the mounting bracket 2 and the fire-fighting device 3.

[0038] In one embodiment, the side panel structure 21 includes a first mounting surface 211, a second mounting surface 212 and a connecting component 213; the first mounting surface 211 is detachably connected to the end plate 131 via a first fastener 4; the second mounting surface 212 and the first mounting surface 211 are spaced apart along the length direction of the box body 1, and the second mounting surface 212 is located on the side of the first mounting surface 211 away from the battery module 13; the second mounting surface 212 is suitable for installing the fire-fighting device 3; the first mounting surface 211 and the second mounting surface 212 are connected via the connecting component 213.

[0039] By setting the first mounting surface 211, the connection between the side panel structure 21 and the end plate 131 can be achieved; by setting the second mounting surface 212, the fire-fighting device 3 can be installed and fixed; because the first mounting surface 211 and the second mounting surface 212 are spaced apart along the length direction of the box body 1, and the second mounting surface 212 is located on the side of the first mounting surface 211 away from the battery module 13, there is a height difference between the first mounting surface 211 and the second mounting surface 212 in the length direction of the box body 1, which can prevent the first fastener 4 from protruding from the second mounting surface 212, thereby ensuring the tightness of the connection between the fire-fighting device 3 and the second mounting surface 212.

[0040] Specifically, the first fastener 4 can be a bolt, a screw, etc.

[0041] In one embodiment, the fire-fighting device 3 is detachably connected to the second mounting surface 212 .

[0042] Since the fire-fighting device 3 is detachably connected to the second mounting surface 212, it is possible to fix the fire-fighting devices 3 of different forms or specifications, thereby achieving compatibility with different types of fire-fighting devices 3 and reducing the development cost of the battery pack.

[0043] In a specific embodiment, a plurality of bolts are provided on the second mounting surface 212, and the fire-fighting device 3 is fixedly connected to the second mounting surface 212 by the bolts. Specifically, the fire-fighting device 3 of different forms or specifications can be fixed by adjusting the position and number of the bolts. Specifically, different connection forms can be selected between the fire-fighting device 3 and the second mounting surface 212 according to actual conditions. For example, the fire-fighting device 3 and the second mounting surface 212 can also be connected by bonding.

[0044] Specifically, the fire fighting device 3 includes but is not limited to aerosol, flexible suppression tube, pipe network type fire fighting sensor and the like.

[0045] In one embodiment, the battery modules 13 are provided with at least two groups, and the at least two groups of the battery modules 13 are arranged in sequence along the width direction of the box body 1, and the mounting bracket 2 is fixedly connected to the two adjacent groups of the battery modules 13.

[0046] Since the mounting bracket 2 is fixedly connected to the two adjacent groups of battery modules 13, the structural rigidity of the two adjacent groups of battery modules 13 can be improved; since the expansion forces of the battery cells in different battery modules 13 are not completely consistent during the use of the battery pack, the performance of the two adjacent groups of battery modules 13 in resisting the expansion force of the battery cells can also be improved by fixing the mounting bracket 2 to the two adjacent groups of battery modules 13.

[0047] In a specific implementation, the battery modules 13 may be provided in three groups, four groups or five groups, and the specific number may be selected according to the actual situation.

[0048] Specifically, the position of the maintenance port 11 corresponds to the connection between two adjacent battery modules 13, and the shape of the maintenance port 11 can be rectangular, circular, polygonal or irregular; preferably, the shape of the maintenance port 11 is rectangular.

[0049] In one embodiment, the first mounting surface 211 includes a first mounting plate 2111 and a second mounting plate 2112, the second mounting surface 212 includes a third mounting plate 2121 and a fourth mounting plate 2122, the first mounting plate 2111, the third mounting plate 2121, the second mounting plate 2112 and the fourth mounting plate 2122 are arranged in sequence along the width direction of the box body 1; the first mounting plate 2111 and the second mounting plate 2112 are respectively detachably connected to two adjacent groups of battery modules 13.

[0050] By setting the first mounting plate 2111 and the second mounting plate 2112, a detachable connection between the side panel structure 21 and the two groups of battery modules 13 can be achieved; and since the first mounting plate 2111, the third mounting plate 2121, the second mounting plate 2112 and the fourth mounting plate 2122 are arranged in sequence along the width direction of the box body 1, compared with the adjacent arrangement of the first mounting plate 2111 and the second mounting plate 2112, the space occupied by the side panel structure 21 is saved and the size of the mounting bracket 2 is reduced.

[0051] In a specific embodiment, the first mounting plate 2111 is connected to the end plate 131 through a first fastener 4 such as a screw, and the second mounting plate 2112 is connected to another end plate 131 through a first fastener 4 such as a screw.

[0052] In an alternative embodiment, the first mounting surface 211 may include a first mounting plate 2111, the second mounting surface 212 may include a third mounting plate 2121 and a fourth mounting plate 2122, the third mounting plate 2121, the first mounting plate 2111 and the fourth mounting plate 2122 are sequentially arranged along the height direction of the box body 1; and the two ends of the first mounting plate 2111 are detachably connected to two adjacent groups of battery modules 13; the top plate 22 is connected to the third mounting plate 2121. Preferably, the first mounting surface 211 may also include a second mounting plate 2112, the second mounting plate 2112 is arranged on a side of the fourth mounting plate 2122 away from the first mounting plate 2111, and the two ends of the second mounting plate 2112 are detachably connected to the two groups of battery modules 13.

[0053] In one embodiment, in an optional implementation, the battery pack also includes an end plate fixing structure (not shown in the figure), which is arranged below the end plate 131, and at least two fixing holes 221 are provided on the top plate 22; the end plate 131 is provided with through holes in the vertical direction, and the through holes on at least two adjacent groups of the battery modules 13 are respectively arranged corresponding to at least two fixing holes 221, and at least two threaded holes are provided on the end plate fixing structure, and the threaded holes are arranged corresponding to the through holes; the second fastener 5 passes through the fixing hole 221 and the through hole in turn, and is threadedly connected to the threaded hole.

[0054] Among them, the end plate fixing structure can be a structure located on the bottom plate of the battery pack, which is used to fix the end plate to the battery pack. In the embodiment of the present application, taking the connection between the top plate and the end plates on the two groups of battery modules as an example, the through holes on the two adjacent groups of battery modules 13 are respectively arranged corresponding to the two fixing holes 221, and the second fastener 5 passes through the fixing hole 221 and the through hole, and is threadedly connected to the threaded hole in the end plate fixing structure. This can not only realize the detachable connection between the top plate 22 and the two adjacent groups of battery modules 13, but also strengthen the connection strength between the mounting bracket 2 and the two adjacent groups of battery modules 13, and the connection strength between the battery module 13 and the end plate fixing structure.

[0055] In a specific embodiment, a through hole is provided at the top of each end plate 131 , and two fixing holes 221 are provided on the top plate 22 . The two fixing holes 221 are respectively arranged to correspond to the through holes of two adjacent battery modules 13 .

[0056] In an alternative embodiment, a plurality of through holes may be provided at the top end of each end plate 131 , and each through hole is provided corresponding to a fixing hole 221 .

[0057] In a specific embodiment, the second fastener 5 is a long bolt.

[0058] Preferably, the top plate 22 is fixedly connected to the third mounting plate 2121. Since the third mounting plate 2121 is located between the first mounting plate 2111 and the second mounting plate 2112, and the first mounting plate 2111 and the second mounting plate 2112 are respectively detachably connected to two adjacent groups of battery modules 13, when the top plate 22 is fixedly connected to the third mounting plate 2121, the connection between the top plate 22 and the two adjacent groups of battery modules 13 can also be achieved, and its structural design is reasonable.

[0059] In one embodiment, the connecting assembly 213 includes three connecting plates 2131, and the three connecting plates 2131 are arranged in sequence at intervals along the width direction of the box body 1, and the connecting plates 2131 are parallel to the length direction of the box body 1; the first mounting plate 2111 and the third mounting plate 2121 are connected by one connecting plate 2131, the third mounting plate 2121 and the second mounting plate 2112 are connected by one connecting plate 2131, and the second mounting plate 2112 and the fourth mounting plate 2122 are connected by one connecting plate 2131.

[0060] By setting the connecting plate 2131, the connection between the first mounting plate 2111 and the third mounting plate 2121, the connection between the third mounting plate 2121 and the second connecting plate 2131, and the connection between the second mounting plate 2112 and the fourth mounting plate 2122 can be realized; and because the connecting plate 2131 is parallel to the length direction of the box body 1, the first mounting surface 211 and the second mounting surface 212 can be spaced apart in the length direction of the box body 1.

[0061] In one embodiment, the side panel structure 21 further includes a reinforcing component 214 , and the reinforcing component 214 is disposed between the first mounting surface 211 and the connecting component 213 ; and the reinforcing component 214 is disposed between the second mounting surface 212 and the connecting component 213 .

[0062] By providing the reinforcing component 214 , the thickness of the mounting bracket 2 can be reduced, and the strength and flatness of the first mounting surface 211 and the second mounting surface 212 can be improved.

[0063] Specifically, the reinforcing component 214 includes multiple reinforcing ribs or multiple ribs; multiple reinforcing ribs or multiple ribs are provided between the first mounting plate 2111 and the connecting plate 2131, and the multiple reinforcing ribs or multiple ribs are arranged in sequence at intervals along the height direction of the box body 1; multiple reinforcing ribs or multiple ribs are provided between the second mounting plate 2112 and the connecting plate 2131, and the multiple reinforcing ribs or multiple ribs are arranged in sequence at intervals along the height direction of the box body 1; multiple reinforcing ribs or multiple ribs are provided between the third mounting plate 2121 and the connecting plate 2131, and the multiple reinforcing ribs or multiple ribs are arranged in sequence at intervals along the height direction of the box body 1; multiple reinforcing ribs or multiple ribs are provided between the fourth mounting plate 2122 and the connecting plate 2131, and the multiple reinforcing ribs or multiple ribs are arranged in sequence at intervals along the height direction of the box body 1.

[0064] In one embodiment, a fire-fighting wire harness fixing device 6 is further included, and the fire-fighting wire harness fixing device 6 is fixed on the second mounting surface 212 .

[0065] By providing the fire-fighting harness fixing device 6, the communication harness of the fire-fighting device 3 can be fixed, the setting of harness fixing points in the battery pack can be reduced, and the neatness of the harness in the battery pack can be improved.

[0066] In a specific embodiment, the fire harness fixing device 6 can be a buckle, a tape or a cable tie, etc. Preferably, the fire harness fixing device 6 is a buckle, one end of which is fixed on the second mounting surface 212, and the other end is provided with a through hole, so that the fire harness can pass through the through hole, thereby fixing the fire harness; by fixing the buckle on the second mounting surface 212, the mounting bracket 2 and the buckle form an integrated structure, and the overall structure of the mounting bracket 2 and the buckle can be transported and installed, so as to avoid the loss or drop of the fire harness fixing device 6, and facilitate the simultaneous fixing of the fire device 3 and the fire harness.

[0067] In one embodiment, a cover plate 7 is further included. The cover plate 7 is located at the maintenance port 11 , is disposed on the outside of the box body 1 , and is detachably connected to the front panel 12 .

[0068] The cover plate 7 is provided to improve the sealing performance of the box body 1 , and the cover plate 7 is detachably connected to the front panel 12 , so that the cover plate 7 can be easily disassembled and assembled when the fire-fighting device 3 is maintained.

[0069] In a specific embodiment, the cover plate 7 is detachably connected to the maintenance port 11 via a sealing strip 8 . The provision of the sealing strip 8 can improve the sealing performance of the cover plate 7 .

[0070] As an alternative embodiment, the cover plate 7 may be detachably connected to the maintenance opening 11 by a third fastener such as bolts.

[0071] As an alternative embodiment, one side of the cover plate 7 may be hinged to the front panel 12 , and the other side may be connected to the front panel 12 via a lock.

[0072] An embodiment of the present application also provides an energy storage system, including multiple battery packs as described in any of the above embodiments. The content and effects of the energy storage system can be referred to the battery pack embodiment and will not be described in detail.

[0073] The energy storage system may include a battery rack and a plurality of battery packs, wherein the battery packs are arranged on the battery rack to form a battery cluster.

[0074] The energy storage system may also be an energy storage container including a plurality of battery clusters.

[0075] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A battery pack, characterized in that: include: A box body (1) comprises a maintenance port (11), wherein the maintenance port (11) is arranged on a front panel (12) of the box body (1); a battery module (13) is fixed inside the box body (1), and the battery module (13) is spaced apart from the front panel (12); The mounting bracket (2) is located between the maintenance opening (11) and the battery module (13), and is fixed on the battery module (13); a side of the mounting bracket (2) close to the maintenance opening (11) is suitable for mounting a fire-fighting device (3).

2. The battery pack according to claim 1, characterized in that: The battery module (13) is provided with an end plate (131) on one side close to the front panel (12); the mounting bracket (2) comprises: a side plate structure (21) detachably connected to a side of the end plate (131) close to the maintenance opening (11), and the side of the side plate structure (21) close to the maintenance opening (11) is suitable for installing the fire-fighting device (3); The top plate (22) is connected to the top end of the side plate structure (21), is perpendicular to the side plate structure (21) and extends in a direction close to the end plate (131), and is located above the end plate (131), and the top plate (22) is detachably connected to the end plate (131).

3. The battery pack according to claim 2, characterized in that: The side plate structure (21) comprises: A first mounting surface (211) detachably connected to the end plate (131) via a first fastener (4); a second mounting surface (212) spaced apart from the first mounting surface (211) along the length direction of the box body (1), and the second mounting surface (212) is located on a side of the first mounting surface (211) away from the battery module (13); the second mounting surface (212) is suitable for mounting the fire-fighting device (3); A connecting component (213), wherein the first mounting surface (211) and the second mounting surface (212) are connected via the connecting component (213).

4. The battery pack according to claim 3, characterized in that: The fire-fighting device (3) is detachably connected to the second mounting surface (212).

5. The battery pack according to claim 3, characterized in that: The battery modules (13) are provided with at least two groups, and the at least two groups of battery modules (13) are arranged in sequence along the width direction of the box body (1), and the mounting bracket (2) is fixedly connected to the two adjacent groups of battery modules (13).

6. The battery pack according to claim 5, characterized in that: The first mounting surface (211) comprises a first mounting plate (2111) and a second mounting plate (2112); the second mounting surface (212) comprises a third mounting plate (2121) and a fourth mounting plate (2122); the first mounting plate (2111), the third mounting plate (2121), the second mounting plate (2112) and the fourth mounting plate (2122) are arranged in sequence along the width direction of the box body (1); the first mounting plate (2111) and the second mounting plate (2112) are respectively detachably connected to two adjacent groups of battery modules (13).

7. The battery pack according to claim 5 or 6, characterized in that: The battery pack also includes an end plate fixing structure, which is arranged below the end plate (131); the top plate (22) is provided with at least two fixing holes (221); the end plate (131) is provided with through holes along the vertical direction, and the through holes on at least two adjacent groups of battery modules (13) are respectively arranged corresponding to at least two fixing holes (221); the end plate fixing structure is provided with at least two threaded holes, and the threaded holes are arranged corresponding to the through holes; the second fastener (5) passes through the fixing hole (221) and the through hole in sequence, and is threadedly connected to the threaded hole.

8. The battery pack according to any one of claims 3 to 6, characterized in that: The side panel structure (21) further comprises a reinforcing component (214), wherein the reinforcing component (214) is arranged between the first mounting surface (211) and the connecting component (213); and the reinforcing component (214) is arranged between the second mounting surface (212) and the connecting component (213).

9. The battery pack according to any one of claims 3 to 6, characterized in that: It also includes a fire-fighting wire harness fixing device (6), and the fire-fighting wire harness fixing device (6) is fixed on the second mounting surface (212).

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

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