Energy storage device and energy storage system

Abstract

The invention provides an energy storage device and an energy storage system, the energy storage device comprises a cabinet body and a battery module, the cabinet body is provided with a containing cavity, the containing cavity is provided with a mounting position, one end of the mounting position is opened, the mounting position is provided with a limiting structure, the battery module can be inserted into the mounting position from the opening of the mounting position, and the battery module is suitable for being matched with the limiting structure. According to the energy storage device, the installation stability of the battery module is ensured.

Description

Technical Field

[0001] The present application relates to the field of energy storage technology, and in particular to an energy storage device and an energy storage system. Background Art

[0002] Energy storage devices are devices or systems used to store energy and release it when needed. With the prevalence of renewable energy and the diversification of electricity demand, energy storage devices are playing an increasingly important role in modern power systems.

[0003] The energy storage device includes a cabinet and a battery module. The battery module is installed in the cabinet. In the related art, after the battery module is installed in the cabinet, the battery module is not easy to remove from the cabinet, which makes it difficult to repair and maintain the battery module. Summary of the Invention

[0004] The present application provides an energy storage device and an energy storage system to facilitate the repair and maintenance of battery modules.

[0005] The first aspect of the present application provides an energy storage device, including a cabinet and a battery module. The cabinet is provided with a accommodating cavity, the accommodating cavity is provided with an installation position, one end of the installation position is open, and the installation position is provided with a limiting structure. The battery module can be inserted into the installation position through the opening of the installation position, and the battery module is suitable for cooperating with the limiting structure so as to be detachably connected to the cabinet.

[0006] According to the energy storage device of the first aspect of the present application, a limiting structure is further provided in the installation position of the present application. When the battery module is plugged into the installation position, the limiting structure can limit the movement of the battery module in directions other than the plugging direction, thereby ensuring the stability of the battery module inside the installation position. When the energy storage device shakes during transportation of the energy storage device, the limiting structure can prevent the battery module from shaking inside the cabinet. In addition, the installation position can form a drawer structure, and the battery module is accommodated in the installation position in a pull-out manner, and the battery module cooperates with the limiting structure to achieve a detachable connection with the cabinet, so that a single battery module can be disassembled, which facilitates the repair and maintenance of the single battery module.

[0007] In one possible implementation, the opening of the installation position is set at one end in the depth direction of the cabinet, and the battery module includes a cluster tray. Along the height direction of the cabinet, one end of the cluster tray can abut against the limiting structure, and the limiting structure is suitable for supporting the cluster tray.

[0008] In one possible implementation, the battery module further includes a plurality of stacked cell groups, and the plurality of cell groups are fixedly disposed on a cluster tray.

[0009] In one possible implementation, along the stacking direction of the battery cell groups, each battery cell group includes a first module and a second module that are stacked, a liquid cooling plate is arranged between the first module and the second module, and a liquid cooling pipe, a liquid inlet and a liquid outlet are also provided on the cluster tray, and the liquid inlet and the liquid outlet are both connected to the liquid cooling plate through the liquid cooling pipe.

[0010] In one possible implementation, the cluster tray includes:

[0011] a front support member; and

[0012] The bottom supporting member is connected to the front supporting member, a predetermined angle is set between the front supporting member and the bottom supporting member, and the battery cell group is connected to the front supporting member and / or the bottom supporting member.

[0013] In a possible implementation, the battery module further includes a cluster cover, which is connected to the cluster tray and is disposed around the periphery of the battery cell group.

[0014] In one possible implementation, the battery module is one or more of a battery cluster, a battery module, and a constrained battery cell.

[0015] In one possible implementation, the limiting structure includes:

[0016] lateral end panels; and

[0017] The bottom support plate is connected to the side end plate, the bottom support plate and / or the side end plate are connected to the cabinet, the cluster tray is overlapped on the bottom support plate, the bottom support plate is suitable for supporting the cluster tray, and the side end plate is suitable for limiting the movement of the cluster tray along the length direction of the cabinet.

[0018] In one possible implementation, the limiting structure also includes an upper end plate, the upper end plate and the bottom support plate are spaced apart along the height direction of the cabinet, the bottom support plate and the upper end plate are connected by a side end plate, the cluster tray is located between the bottom support plate and the upper end plate, and the upper end plate is suitable for limiting the movement of the cluster tray along the height direction of the cabinet.

[0019] In a possible implementation, a limiting member is protruded from one end of the cluster tray facing the upper end plate, and the limiting member abuts against the upper end plate.

[0020] In one possible implementation, the limiting structure further includes a rear plate, which is arranged away from the opening of the installation position. When the battery module is inserted into the installation position, the end of the cluster tray facing away from the opening of the installation position is adapted to abut against the rear plate.

[0021] In one possible implementation, a fixing structure is further provided at a position of the cabinet corresponding to the installation position. The fixing structure is provided near the opening of the installation position. When the battery module is inserted into the installation position, the battery module can be detachably connected to the fixing structure.

[0022] In one possible implementation, the fixed structure includes:

[0023] a connecting portion connected to the cabinet; and

[0024] The fixing part is connected to the connecting part. The battery module is provided with a fixing piece, and the fixing piece is used to connect the fixing part.

[0025] In one possible implementation, a control assembly is further provided in the cabinet, and the control assembly includes a control board. The control board is detachably connected to the cabinet, and the positive and negative poles of the battery module are suitable for being electrically connected to the control board.

[0026] In one possible implementation, the control component further includes:

[0027] cooling components; and

[0028] Multiple channel plates are arranged at intervals, and the cooling component has an air outlet end. A guide channel is formed between at least two channel plates. One end of the guide channel extends to the air outlet end of the cooling component, and the other end of the guide channel is used to output the cold air blown out by the cooling component.

[0029] In one possible implementation, the cooling assembly further includes:

[0030] A liquid inlet pipe, used for delivering coolant into the cooling assembly;

[0031] A liquid outlet pipe is used to output the liquid after absorbing heat;

[0032] and a drain pipe, the drain pipe is used to output the liquid formed by condensation; wherein,

[0033] The liquid inlet pipe, the liquid outlet pipe and the liquid drain pipe are all led out from the cooling assembly, and the liquid inlet pipe and the liquid outlet pipe are all extended along the side wall of the control board, and the liquid drain pipe extends out of the control board.

[0034] In one possible implementation, the cabinet further includes:

[0035] a first partition plate, the first partition plate being used to form an accommodating area in the cabinet body and separated from the accommodating cavity; and

[0036] The second partition plate is used to divide the accommodating area into two sub-spaces. The two sub-spaces are used to form an electrical compartment and an air-conditioning compartment. The electrical compartment is used to place electrical modules, and the air-conditioning compartment is used to place air conditioners. The electrical compartment and the air-conditioning compartment are located on the same side of the cabinet in the length direction.

[0037] In one possible implementation, an electrical cabinet is detachably connected to the electrical compartment, and the energy storage device further includes an electrical module, which can be plugged into the electrical cabinet.

[0038] In one possible implementation, the electrical cabinet includes an electrical frame, the electrical frame is provided with a compartment, and the electrical module is placed in the compartment. The electrical frame also includes:

[0039] First connecting member: and

[0040] The second connecting piece, the first connecting piece and the second connecting piece are respectively connected to the two ends of the electrical frame in the height direction, and the electrical frame is connected to the cabinet through the first connecting piece and the second connecting piece.

[0041] In one possible implementation, a cabinet cavity is formed in the electrical cabinet, and the electrical cabinet is provided with partitions and lower beams in the cabinet cavity. The partitions and lower beams are spaced apart along the height direction of the electrical compartment, so that along the height direction of the electrical compartment, the partitions and lower beams divide the electrical compartment into a first compartment, a second compartment and a third compartment.

[0042] In one possible implementation, the electrical module includes:

[0043] Pressure storage fire fighting assembly;

[0044] Communications control assembly; and

[0045] The busbar assembly, pressure storage and fire protection assembly, communication control assembly and busbar assembly are installed in the electrical cabinet in sequence along the height direction of the cabinet.

[0046] In one possible implementation, the convergence assembly is connected to the lower beam, the communication control assembly is connected to the lower beam and the partition, a connecting plate is also provided in the first compartment, and the pressure storage fire fighting assembly is connected to the partition and the connecting plate.

[0047] In one possible implementation, a first guide rail and a second guide rail are respectively provided in the first compartment and the second compartment, part of the structure of the pressure storage fire protection assembly is used for sliding cooperation with the first guide rail, and part of the structure of the communication control assembly is used for sliding cooperation with the second guide rail.

[0048] In one possible implementation, the energy storage device further includes a gas valve structure, which includes:

[0049] The air inlet valve is located at the end of the cabinet away from the electrical compartment;

[0050] An active air release valve is provided at one end of the cabinet body close to the air conditioning compartment, and the outlet of the active air release valve is connected to the air conditioning compartment; and

[0051] The passive air relief valve is arranged at one end of the cabinet body close to the air conditioning compartment, and the outlet of the passive air relief valve is connected to the air conditioning compartment.

[0052] In one possible implementation, the cabinet includes:

[0053] A frame body is formed with a receiving cavity;

[0054] A panel is provided around the outer periphery of the frame; and

[0055] The door has one end rotatably connected to the frame, and the door is arranged corresponding to the accommodating cavity and is used to open and close the installation position.

[0056] In one possible implementation, the frame includes:

[0057] Top column;

[0058] bottom column; and

[0059] The side columns, top columns and bottom columns are arranged at intervals, the side columns are located between the top columns and the bottom columns, and the two ends of the side columns are respectively connected to the top columns and the bottom columns. The top columns, the bottom columns and the side columns are arranged to form a hollow square frame structure.

[0060] In one possible implementation, a plurality of support columns are further provided inside the frame. Along the length direction of the frame, the plurality of support columns are arranged into multiple groups at intervals, and along the depth direction of the cabinet, each group of support columns is arranged with multiple support columns at intervals, wherein the gap between two adjacent groups of support columns is used to form a accommodating cavity.

[0061] In one possible implementation, the energy storage device further includes a fire protection pipeline assembly, which includes:

[0062] Cluster fire pipe assembly, which includes cluster fire main pipe and cluster fire branch pipe;

[0063] Gas fire pipe assembly, which includes a gas fire main pipe and a gas fire branch pipe; and

[0064] The water fire fighting pipe assembly includes a water fire fighting main pipe and a water fire fighting branch pipe. The cluster fire fighting main pipe, the gas fire fighting main pipe and the water fire fighting main pipe are connected to the bottom of the cabinet. The cluster fire fighting branch pipe, the gas fire fighting branch pipe and the water fire fighting branch pipe are respectively located on the support columns inside the cabinet.

[0065] In one possible implementation, a fire detection structure is also included, which includes a detector and a cover plate. A mounting groove is provided on the top of the frame, the detector is accommodated in the mounting groove and connected to the cabinet, and the cover plate is covered in the mounting groove.

[0066] In one possible implementation, a wire threading opening is provided on the top of the cabinet, and a wire threading channel is formed inside the structure of the frame, and the cable of the detector enters the wire threading channel through the wire threading opening.

[0067] A second aspect of the present application provides an energy storage system, comprising a plurality of the above-mentioned energy storage devices, wherein the plurality of energy storage devices are electrically connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] To more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0069] Figure 1 A schematic structural diagram showing a partial structure of a first energy storage device provided in some embodiments of the present application is shown;

[0070] Figure 2 A schematic structural diagram showing a partial structure of a second energy storage device provided in some embodiments of the present application is shown;

[0071] Figure 3 A front view of a partial structure of an energy storage device provided in some embodiments of the present application is shown;

[0072] Figure 4 shows an exploded view of a battery module provided in some embodiments of the present application;

[0073] Figure 5 A schematic structural diagram of a cluster tray provided in some embodiments of the present application is shown;

[0074] Figure 6 An exploded view of a battery cell assembly provided in some embodiments of the present application is shown;

[0075] Figure 7 A schematic structural diagram of a control component provided in some embodiments of the present application is shown;

[0076] Figure 8 Another structural schematic diagram of a control component provided in some embodiments of the present application is shown;

[0077] Figure 9 A schematic structural diagram showing a partial structure of a third energy storage device provided in some embodiments of the present application is shown;

[0078] Figure 10 A front view of a partial structure of another energy storage device provided in some embodiments of the present application is shown;

[0079] Figure 11 A schematic structural diagram of a frame structure provided in some embodiments of the present application is shown;

[0080] Figure 12 A schematic diagram of the structure of the electrical cabinet and electrical module assembly provided in some embodiments of the present application is shown;

[0081] Figure 13 A schematic structural diagram of an electrical cabinet provided in some embodiments of the present application is shown;

[0082] Figure 14 A schematic structural diagram of a busbar assembly provided in some embodiments of the present application is shown;

[0083] Figure 15 Another structural schematic diagram of a busbar assembly provided in some embodiments of the present application is shown;

[0084] Figure 16 shows a schematic structural diagram of a communication control assembly provided in some embodiments of the present application;

[0085] Figure 17 A schematic structural diagram of a panel provided in some embodiments of the present application is shown;

[0086] Figure 18 A schematic structural diagram of an energy storage device provided in some embodiments of the present application is shown;

[0087] Figure 19 A schematic structural diagram of a fire protection pipeline assembly provided in some embodiments of the present application is shown;

[0088] Figure 20 A schematic structural diagram showing a partial structure of a fourth energy storage device provided in some embodiments of the present application is shown;

[0089] Figure 21 A schematic structural diagram of a plurality of energy storage devices connected according to some embodiments of the present application is shown;

[0090] Figure 22 Another structural schematic diagram of a plurality of energy storage devices provided in some embodiments of the present application when connected is shown.

[0091] Reference numerals:

[0092] 1000. Energy storage device;

[0093] 10. Cabinet; 11. Enclosure; 12. Frame; 121. Top column; 122. Support column; 123. Side column; 124. Bottom column; 125. Limiting structure; 1251. Upper end plate; 1252. Side end plate; 1253. Bottom support plate; 1254. Rear end plate; 126. Fixing structure; 1261. Connecting part; 1262. Fixing part; 127. Control positioning member; 128. First partition plate; 129. Second partition plate; 13. Door; 14. Accommodation chamber; 141. Installation position; 15. Electrical compartment; 16. Air conditioning compartment; 161. Air conditioning unit; 17. Power line; 18. Cooling Cooling pipe; 19. Mounting slot; 20. Valve structure; 21. Active air release valve; 22. Passive air release valve; 23. Inlet valve; 30. Battery module; 31. Cluster tray; 311. Front support; 3111. Fixing member; 3112. Liquid inlet; 3113. Liquid outlet; 312. Bottom support; 3121. Limiting member; 32. Cluster cover; 33. Cell group; 331. First module; 332. Second module; 34. Liquid cooling plate; 35. Liquid cooling pipe; 40. Control assembly; 41. Control board; 42. Cooling assembly; 421. Liquid inlet pipe; 422. Liquid outlet pipe; 423. Liquid drain pipe; 43. Channel plate; 44. Diversion channel; 45. Connector; 50. Electrical cabinet; 51. Electrical frame; 511. First connector; 512. Second connector; 52. Connecting plate; 53. Partition; 54. Lower beam; 55. First compartment; 56. Second compartment; 57. Third compartment; 58. First guide rail; 59. Second guide rail; 60. Fire protection pipe assembly; 61. Cluster fire protection pipe assembly; 611. Cluster fire protection main pipe; 612. Cluster fire protection branch pipe; 62. Gas fire protection pipe assembly; 621. Gas fire protection main pipe; 622. Gas fire protection branch pipe; 63. Water fire protection pipe assembly; 631. Water fire protection main pipe ; 632. Water fire branch pipe; 64. Fire pump; 70. Fire detection structure; 71. Detector; 72. Cover plate; 80. Electrical module; 81. Busbar assembly; 811. First output line; 812. Second output line; 813. Third output line; 814. Fourth output line; 82. Communication control assembly; 821. Rear frame; 8211. First storage compartment; 8212. Second storage compartment; 822. Panel; 8221. Signal power supply interface area; 8222. Signal modulation interface area; 8223. Micro-break maintenance interface area; 8224. Auxiliary power supply interface area; 83. Pressure storage fire assembly. DETAILED DESCRIPTION

[0094] To make the objectives, 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 in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0095] Figure 1 shows a structural diagram of a partial structure of a first energy storage device provided in some embodiments of the present application, Figure 2 shows a structural diagram of a partial structure of a second energy storage device provided in some embodiments of the present application, Figure 3 A front view of a partial structure of an energy storage device provided in some embodiments of the present application is shown. The X-axis represents a first direction, the Y-axis represents a second direction, and the Z-axis represents a third direction. The first, second, and third directions are perpendicular to each other. The first direction is parallel to the depth direction of the cabinet 10, the second direction is parallel to the height direction of the cabinet 10, and the third direction is parallel to the length direction of the cabinet 10.

[0096] See also Figures 1 to 3 As shown, the first aspect of the present application provides an energy storage device. In some embodiments, the energy storage device includes a cabinet 10 and a battery module 30 installed in the cabinet 10. The cabinet 10 is the main structure of the energy storage device. The shape and size of the cabinet 10 determine the overall shape and size of the entire energy storage device. The remaining structures of the energy storage device are suitable for using the cabinet 10 as an installation carrier. The cabinet 10 is used to provide support and protection for the remaining structures of the energy storage device. In order to be suitable for installing the remaining structures of the energy storage device, a plurality of accommodating spaces are provided inside the cabinet 10. For example, in the implementation of the present application, a accommodating cavity 14 is provided inside the cabinet 10. The accommodating cavity 14 is used to accommodate the battery module 30. The accommodating cavity 14 is provided with a mounting position 141. The mounting position 141 is provided with a limiting structure 125. The mounting position 141 and the limiting structure 125 therein can limit the installation position of the battery module 30 inside the cabinet 10.

[0097] It should be noted that the mounting position 141 can extend along the depth direction, height direction and length direction of the cabinet 10, that is, the mounting position 141 can extend along the first direction, the second direction or the third direction, which is not limited here. This application takes the mounting position 141 extending along the depth direction of the cabinet 10 as an example for explanation. Regardless of the direction in which the mounting position 141 extends, it is provided with at least one opening. In addition, the opening of the mounting position 141 can be provided not only at one end of the extension direction of the mounting position 141, but also at one end perpendicular to its extension direction. This is not limited here. This application takes the opening of the mounting position 141 provided at one end of its extension direction as an example for explanation, that is, in this application, one end of the mounting position 141 is provided with an opening along the depth direction of the cabinet 10.

[0098] The battery module 30 can be inserted into the installation position 141 from the opening of the installation position 141. During the process of inserting the battery module 30 into the installation position 141 and / or after the battery module 30 is inserted into the installation position 141, the battery module 30 is suitable for cooperating with the limiting structure 125. At this time, the limiting structure 125 is suitable for limiting the movement of the battery module 30 along the second direction and the third direction of the cabinet 10.

[0099] The battery module 30 of the present application may be one or more of a battery cluster, a battery module, and battery cells constrained together.

[0100] It should be noted that the cabinet 10 may be provided with multiple accommodating cavities 14 along its length. Each of the multiple accommodating cavities 14 can accommodate at least one battery module 30. The number of battery modules 30 accommodated in the accommodating cavity 14 depends on the number of mounting positions 141 provided in the accommodating cavity 14. When a plurality of mounting positions 141 are provided in a accommodating cavity 14, a single accommodating cavity 14 can be used to store multiple battery modules 30. When a plurality of mounting positions 141 are provided in a accommodating cavity 14, the plurality of mounting positions 141 are arranged along the height of the cabinet 10, so that the multiple battery modules 30 stored in each accommodating cavity 14 are stacked along the height of the cabinet 10.

[0101] The cabinet 10 of the present application is provided with a receiving cavity 14, in which the battery module 30 can be accommodated and stored. The receiving cavity 14 of the present application has a mounting position 141, which is used to define the installation position of the battery module 30 on the cabinet 10. The mounting position 141 extends along the depth direction of the cabinet 10 and is provided with an opening in the depth direction of the cabinet 10. The space of the mounting position 141 is set to be greater than or equal to the size of the battery module 30, so that one end of the battery module 30 can be inserted into the mounting position 141 through the opening, forming a drawer-like installation structure between the battery module 30 and the cabinet 10. Once the battery module 30 is inserted into the mounting position 141, the battery module 30 can be confined within the mounting position 141 by simply fixing the battery module 30 in the depth direction of the cabinet 10, making it difficult for the battery module 30 to escape from the mounting position 141. This drawer-style installation method facilitates the installation of the battery module 30 in the cabinet 10, enabling quick storage and retrieval of the battery module 30. The battery module 30 and the cabinet 10 only need to be secured in one direction, simplifying the securing method between the battery module 30 and the cabinet 10, thereby reducing the number of structures and accelerating the installation efficiency between the battery module 30 and the cabinet 10. Furthermore, when multiple mounting positions 141 are provided, the openings of these mounting positions 141 can be opened toward the same side of the cabinet 10. This allows the battery module 30 to be removed from the same side of the cabinet 10, while the other side walls of the cabinet 10 can be used to connect energy storage devices or to install structures required for other energy storage devices, thereby improving space utilization. Furthermore, a limiting structure 125 is also provided in the installation position 141 of the present application. When the battery module 30 is inserted into the installation position 141, the battery module 30 cooperates with the limiting structure 125 to achieve a detachable connection between the battery module 30 and the cabinet 10, so that a single battery module 30 can be disassembled, facilitating the repair and maintenance of the single battery module 30. On the other hand, the limiting structure 125 can also limit the movement of the battery module 30 in the cabinet 10, thereby ensuring the stability of the battery module 30 in the installation position 141. When the energy storage device shakes during transportation, the limiting structure 125 can prevent the battery module 30 from jumping up and down along the height direction of the cabinet 10. At the same time, the limiting structure 125 can also limit the battery module 30 from swinging left and right along the length direction of the cabinet 10, ensuring the installation stability of the battery module 30, making it difficult for the battery module 30 to move relative to the cabinet 10, avoiding collision between the battery module 30 and the cabinet 10, and avoiding collision between two adjacent battery modules 30 due to movement.

[0102] In some embodiments, at least one limiting structure 125 can be set in an installation position 141. When only one limiting structure 125 is set, the limiting structure 125 needs to cooperate with a partial structure of the installation position 141 to clamp the battery module 30 in the installation position 141. When multiple limiting structures 125 are set in the installation position 141, the multiple limiting structures 125 cooperate to form a limited space. When the battery module 30 is inserted into the installation position 141, the partial structure can be located in the limited space to limit the movement of the battery module 30.

[0103] In the implementation of the present application, two limiting structures 125 are provided in the installation position 141 as an example for description. The two limiting structures 125 are provided in the installation position 141 at intervals along the length direction of the cabinet 10. The limiting structures 125 of the present application specifically include a bottom supporting plate 1253, a side end plate 1252, and an upper end plate 1251. The limiting structures 125 of the present application can be directly connected to the cabinet 10 through the side end plate 1252, or can be connected to the cabinet 10 through a connecting structure provided on the upper end plate 1251, the bottom supporting plate 1253, or the side end plate 1252. The connecting structure includes but is not limited to screws, a clamping structure, or a buckle structure.

[0104] The bottom support plate 1253 and the upper end plate 1251 are spaced apart along the second direction of the cabinet 10, and the bottom support plate 1253 and the upper end plate 1251 are connected by the side end plate 1252. A limited space is formed between the bottom support plate 1253, the upper end plate 1251 and the side end plate 1252. When the battery module 30 is inserted into the installation position 141, part of its structure is restricted within the limited space.

[0105] It should be noted that the limiting spaces of the two limiting structures 125 in the same installation position 141 are arranged relative to each other, so that when the battery module 30 is inserted into the installation position 141, the partial structures of the battery module 30 at both ends in the length direction of the cabinet 10 can be respectively limited in the limiting spaces of the two limiting structures 125. At this time, the upper end plates 1251 and the bottom support plates 1253 of the two limiting structures 125 are used to limit the movement of the battery module 30 along the height direction of the cabinet 10, and the side end plates 1252 of the two limiting structures 125 are used to limit the movement of the battery module 30 along the length direction of the cabinet 10.

[0106] Figure 4 An exploded view of a battery module 30 provided in some embodiments of the present application is shown.

[0107] Combine Figure 1 、 Figure 3 and Figure 4As shown, in some embodiments, the battery module 30 includes a cluster tray 31. The cluster tray 31 can serve as a mounting carrier for the battery module 30, for mounting the remaining structure of the battery module 30. The cluster tray 31 can also serve as a connecting structure for connecting the battery module 30 to the cabinet 10. When the battery module 30 is inserted into the mounting position 141, the cluster tray 31 can be directly or indirectly connected to the cabinet 10 to secure the battery module 30 to the cabinet 10. When the battery module 30 is inserted into the mounting position 141, a portion of the structure of the cluster tray 31 can also be inserted into the gap between the bottom support plate 1253 and the upper end plate 1251. Along the second direction of the cabinet 10, one end of the cluster tray 31 abuts against the upper end plate 1251, and the other end abuts against the bottom support plate 1253. This can restrict the movement of the cluster tray 31 in the second direction of the cabinet 10. In addition, when the battery module 30 is inserted into the installation position 141 , the end of the cluster tray 31 in the third direction of the cabinet 10 is attached to the side end plate 1252 , and the side end plate 1252 prevents the cluster tray 31 from moving along the third direction of the cabinet 10 .

[0108] It is worth mentioning that a stopper 3121 is provided protruding toward one end of the upper end plate 1251 at a portion of the cluster tray 31 located between the upper end plate 1251 and the bottom support plate 1253. One or more stoppers 3121 are provided. When the cluster tray 31 is located between the upper end plate 1251 and the bottom support plate 1253, the stoppers 3121 abut against the upper end plate 1251. Providing the stoppers 3121 on the cluster tray 31 prevents the cluster tray 31 from directly abutting against the upper end plate 1251, thereby reducing unnecessary wear.

[0109] It should be noted that the upper end plate 1251, the side end plate 1252 and the bottom support plate 1253 all extend along the first direction of the cabinet 10, so that the limiting structure 125 as a whole extends along the first direction of the cabinet 10. At this time, the limiting space also extends along the first direction of the cabinet 10, so that when the battery module 30 is inserted into the installation position 141, the limiting structure 125 can also be used to guide the movement of the battery module 30, so that the battery module 30 can be inserted into the installation position 141 along the first direction of the cabinet 10.

[0110] In some embodiments, the cabinet 10 is further provided with a fixing structure 126 at a position corresponding to the mounting position 141. The fixing structure 126 is provided near the opening of the mounting position 141. When the battery module 30 is inserted into the mounting position 141, the battery module 30 can be detachably connected to the fixing structure 126. In this way, the battery module 30 can be fixedly connected to the cabinet 10 and fixed in the mounting position 141.

[0111] Specifically, the fixing structure 126 includes a connecting portion 1261 and a fixing portion 1262. The connecting portion 1261 is connected to the fixing portion 1262, and the fixing structure 126 is connected to the cabinet 10 via the connecting portion 1261. The connecting portion 1261 and the fixing portion 1262 can be integrally formed or separately provided. When separately provided, the connecting portion 1261 can be connected to the fixing portion 1262 by bonding or welding, or the connecting portion 1261 and the fixing portion 1262 can be connected by screws, a clamping structure, or a buckle structure.

[0112] The front end of the battery module 30 is provided with a fixing member 3111. It should be noted here that the front end of the battery module 30 refers to the end of the battery module 30 close to the opening of the mounting position 141 when the battery module 30 is inserted into the mounting position 141. When the battery module 30 is inserted into the mounting position 141, the fixing member 3111 can be connected to the fixing portion 1262. The connection method between the fixing portion 1262 and the fixing member 3111 includes but is not limited to snap connection, buckle connection or screw connection. For example, in the implementation of this application, the fixing portion 1262 and the fixing member 3111 are connected by screws. The fixing portion 1262 and the fixing member 3111 are both provided with connection holes, and at least one of the connection holes is a screw hole. When the battery module 30 is inserted into the mounting position 141, the connection hole of the fixing member 3111 and the connection hole on the fixing portion 1262 are aligned. At this time, the fixing member 3111 and the fixing portion 1262 can be connected together by screws.

[0113] It should be noted that the limiting structure 125 of the present application also includes a rear end plate 1254, which is connected to one or more of the upper end plate 1251, the side end plate 1252 or the bottom support plate 1253. The rear end plate 1254 is set away from the opening of the installation position 141. When the battery module 30 is inserted into the installation position 141, the end of the cluster tray 31 facing away from the opening of the installation position 141 is suitable for abutting against the rear end plate 1254. The position of the rear end plate 1254 in the installation position 141 needs to be set according to the connection position of the fixing member 3111 and the fixing portion 1262. When the cluster tray 31 of the battery module 30 just abuts against the rear end plate 1254, the fixing member 3111 and the fixing portion 1262 are just located at the connection position. In this way, the rear end plate 1254 can be used to limit the movement of the battery module 30 in the first direction, limiting the movement of the battery module 30 to the connection position with the cabinet 10, making it easier to align the fixing member 3111 and the fixing portion 1262, and facilitating the connection between the fixing member 3111 and the fixing portion 1262.

[0114] Figure 5 shows a schematic structural diagram of a cluster tray 31 provided in some embodiments of the present application, Figure 6 An exploded view of a battery cell group 33 provided in some embodiments of the present application is shown.

[0115] See also Figures 4 to 6 As shown, in some embodiments, the battery module 30 further includes at least one cell group 33, which is fixedly mounted on the cluster tray 31. The cell group 33 includes multiple cells, which are connected in series. When multiple cell groups 33 are provided, the multiple cell groups 33 are stacked and connected in series. The number of cell groups 33 is not limited. In this application, the battery module 30 is described as having three stacked cell groups 33.

[0116] When the battery module 30 is inserted into the installation position 141, the three stacked cell groups 33 are stacked along the second direction. Along the stacking direction of the cell groups 33, each cell group 33 includes a first module 331 and a second module 332 that are stacked, so that one battery module 30 includes six modules.

[0117] Because a module is formed by multiple cells connected in series, for example, the number of cells in the first module 331 can range from 1P32S to 1P35S, the number of cells in a cell group 33 can range from 1P128S to 1P140S, and the number of cells in a battery module 30 can range from 1P384S to 1P420S. 1P32S represents the cell connection method, where 1P indicates a row of connected cells, and 32S indicates that the row has 32 cells connected in series.

[0118] The multiple battery cells of the first module 331 are arranged along a straight line, for example, arranged along the first direction, with the positive and negative poles of two adjacent battery cells facing each other so that the positive and negative poles of the two adjacent battery cells are connected to realize the series connection of the battery cells, so that the two ends of a single module along the battery cell arrangement direction are the positive pole of the module and the negative pole of the module respectively. If a battery cell group 33 is only provided with one module, then the positive pole of the module and the negative pole of the module are the positive pole and negative pole of the battery cell group 33. When two adjacent battery cell groups 33 are connected in series, the positive and negative poles of the modules of the two adjacent battery cell groups 33 need to correspond. At this time, in the two adjacent battery cell groups 33, the positive pole of the module of one battery cell group 33 needs to be on the same side as the negative pole of the module of the other battery cell group 33, so as to facilitate the connection between the positive and negative poles. However, if the number of cell groups 33 in the battery module 30 is odd, the positive and negative electrodes of the two cell groups 33 at the end in the stacking direction are likely to be on opposite sides, increasing the length of the lead wires after the cell groups 33 are connected in series.

[0119] By configuring the cell group 33 to consist of two modules, a first module 331 and a second module 332, the first module 331 and the second module 332 are stacked. If the negative electrode of the first module 331 and the positive electrode of the second module 332 are connected, the negative electrode of the first module 331 and the positive electrode of the second module 332 need to be arranged on the same side. When the first module 331 and the second module 332 are connected in series, the positive electrode of the first module 331 and the negative electrode of the second module 332 form the positive and negative electrodes of the cell group 33. At this time, the positive and negative electrodes of the cell group 33 are located on the same side. In this way, regardless of whether the battery module 30 is configured with an even number of cell groups 33 or an odd number of cell groups 33, when multiple cell groups 33 are stacked and two adjacent cell groups 33 are connected in series, the unconnected positive and negative electrodes of the cell groups 33 at the two ends of the stacking direction are both located on the same side.

[0120] Moreover, the number of battery cells in the battery module 30 of the present application is sufficient to form a battery pack in a cluster. Compared with the related art in which multiple clusters of battery modules are connected in series to form a battery pack, when the cabinet 10 accommodates the same number of battery packs, the number of battery modules 30 of the present application is smaller, and therefore occupies less space.

[0121] It should be noted that the first module 331 and the second module 332 can be a single unitary structure, or can be composed of multiple segments of small modules. When the first module 331 and the second module 332 are composed of multiple segments of small modules, the small modules within each module are connected by a connecting plate 52. Specifically, the two ends of the connecting plate 52 are fixedly connected to two adjacent small modules by screws.

[0122] It should also be noted that the first module 331 and the second module 332 can also be connected through a connecting plate 52. For example, when two small modules in the first module 331 are connected through a connecting plate 52, the connecting plate 52 can also be used to connect the two small modules on the second module 332, so that the first module 331 and the second module 332 can be connected together.

[0123] The first module 331 and the second module 332 of the cell group 33 are connected to form the cell group 33 as an integral structure. Similarly, the modules between two adjacent cell groups 33 can be connected together to form a plurality of cell groups 33 as a whole, and then the whole is connected to the cluster tray 31.

[0124] See also Figures 4 to 6As shown, in some embodiments, a liquid cooling plate 34 is provided between the first module 331 and the second module 332. The cluster tray 31 is further provided with a liquid cooling pipe 35, a liquid inlet 3112, and a liquid outlet 3113. The liquid inlet 3112 and the liquid outlet 3113 are both connected to the liquid cooling plate 34 via the liquid cooling pipe 35. The liquid cooling structure can be connected to an external liquid cooling structure, which transports a liquid cooling medium to the liquid inlet 3112 through the liquid cooling pipe 35, thereby allowing the liquid cooling medium to enter the liquid cooling plate 34 and absorb heat from the first module 331 and the second module 332. Subsequently, the liquid cooling medium that has absorbed heat in the liquid cooling plate 34 can flow out of the liquid cooling plate 34 through the liquid outlet 3113, achieving a heat exchange effect and dissipating heat from the first module 331 and the second module 332.

[0125] It should be noted that a cooling pipe 18 is also provided in the cabinet 10. The cooling pipe 18 is provided at the bottom of the cabinet 10 and extends along the length direction of the cabinet 10. The cooling pipe 18 has multiple cooling branches, which can be connected to the liquid cooling pipe 35 on the cluster tray 31. The cooling pipe 18 is also externally connected to a liquid supply structure to provide cooling liquid for the liquid cooling pipe 35.

[0126] See also Figures 4 to 6 As shown, in some embodiments, the cluster tray 31 includes a front support member and a bottom support member 312. The bottom support member 312 and the front support member 311 can be provided separately. The bottom support member 312 can be connected together by screws, a clamping structure, or a snap-on structure, or the bottom support member 312 can be integrally formed with the front support member. A predetermined angle is set between the front support member 311 and the bottom support member 312, so that the front support member 311 and the bottom support member 312 are bent. The battery cell group 33 is located in the space formed by the bending of the front support member and the bottom support member 312, and the battery cell group 33 is connected to the front support member 311 and / or the bottom support member 312.

[0127] Exemplarily, the front supporting member 311 and the bottom drag member are vertically arranged.

[0128] It should be noted that the battery module 30 also includes a cluster cover 32, which is an open shell structure. The cluster cover 32 can be connected to the cluster tray 31. When the cluster cover 32 is connected to the cluster tray 31, the cluster cover 32 can be arranged around the outer periphery of the battery cell group 33. Therefore, a accommodating space can be formed between the cluster cover 32 and the cluster tray 31. The battery cell group 33 can be located in the accommodating space, which can protect the battery cell group 33.

[0129] Figure 7 FIG. 4 shows a structural diagram of a control component 40 provided in some embodiments of the present application. Figure 8 Another structural diagram of the control component 40 provided in some embodiments of the present application is shown. Figure 9 shows a schematic structural diagram of a partial structure of a third energy storage device provided in some embodiments of the present application, Figure 10 A front view of a partial structure of another energy storage device provided in some embodiments of the present application is shown.

[0130] See also Figure 7 and Figure 8 As shown, in some embodiments, a control assembly 40 is further provided within the cabinet 10. The control assembly 40 includes a control board 41, which is provided with multiple connectors. The front support member of the battery module 30 is provided with a cluster positive electrode and a cluster negative electrode, and the connectors are correspondingly connected to the cluster positive electrode and cluster negative electrode of the battery module 30. Based on the position of the positive and negative electrodes of the battery cell group 33 relative to the front support member 311, the cluster positive electrode and the cluster negative electrode are arranged to correspond to the positive and negative electrodes of the battery cell group 33. In this case, the cluster positive electrode and the cluster negative electrode are respectively arranged at diagonal positions of the front support member 311.

[0131] In some embodiments, the control assembly 40 further includes a cooling assembly 42 and a plurality of spaced channel plates 43. The cooling assembly 42 has an air outlet. In the present application, the cooling assembly 42 is a surface cooler. A guide channel 44 is formed between at least two channel plates 43. One end of the guide channel 44 extends to the air outlet of the cooling assembly 42, and the other end of the guide channel 44 is used to output the cold air blown out by the cooling assembly 42.

[0132] It should be noted that the path of the guide channel 44 passes through the heating element on the control board 41. When the cooling component 42 blows out cold air, the guide channel 44 can play the role of converging and guiding, and transport the cold air toward the heating element to dissipate heat from the heating element.

[0133] It is worth mentioning that the guide channel 44 is set away from the opening at one end of the cooling component 42, and a reflux channel can also be formed between the channel plate 43 forming the guide channel 44 and the side facing away from the guide channel 44 and the control board 41. The cold air blown out by the cooling component 42 can flow out of the guide channel 44 through the opening of the guide channel 44, and can flow back to the cooling component 42 through the reflux channel to achieve circulating heat dissipation.

[0134] In some embodiments, the cooling assembly 42 further includes a liquid inlet pipe 421, a liquid outlet pipe 422, and a liquid drain pipe 423. The liquid inlet pipe 421, the liquid outlet pipe 422, and the liquid drain pipe 423 all extend from the cooling assembly 42. The liquid inlet pipe 421 can be connected to an external infusion structure, which can deliver coolant into the cooling assembly 42 through the liquid inlet pipe 421. The liquid outlet pipe 422 is used to output the liquid after absorbing heat, and the liquid drain pipe 423 is used to output the liquid formed by condensation. The liquid inlet pipe 421 and the liquid outlet pipe 422 extend along the side wall of the control board 41 after being led out of the cooling assembly 42, so that the liquid inlet pipe 421 and the liquid outlet pipe 422 are located outside the control board 41. This can prevent arcing and short circuiting caused by condensed liquid on the pipe surface entering the control unit, which is beneficial to protecting the control board 41. In addition, a drain pipe 423 also extends from the cooling assembly 42 , and a drain end of the drain pipe 423 extends outside the control board 41 . Liquid formed by condensation can be discharged from the drain pipe 423 outside the control board 41 and can be discharged through the drain port of the cabinet 10 .

[0135] See also Figures 7 to 10 As shown, in an embodiment of the present application, when multiple electrical compartments 15 are provided in the cabinet 10, a control component 40 can be provided in each electrical compartment 15. The control component 40 can be located at the bottom of the cabinet 10, or the control component 40 can also be provided at the top of the cabinet 10. The control components 40 in different electrical compartments 15 can be provided on the same side or different sides of the cabinet 10.

[0136] In some embodiments, the cabinet 10 further reserves a placement space in each electrical compartment 15 for accommodating the control component 40. The control component 40 can be accommodated in the placement space and can be connected to the cabinet 10 to be fixed in the cabinet 10. In the present application, the control component 40 can be plugged into the placement space. Along a first direction of the cabinet 10, a slide rail can be provided in the placement space. Part of the structure of the control component 40 can be slidably connected to the slide rail so that the control component 40 can be pulled relative to the cabinet 10.

[0137] It should be noted that when the cabinet 10 is also provided with a structural member similar to the fixed structure 126 at the position of the placement space, when the control component 40 is moved to the predetermined position, the structure can be detachably connected to the control panel 41 of the control component 40, for example, it can be connected through a snap-on structure, a buckle structure or screws to fix the control component 40 in the placement space.

[0138] In addition, the cabinet 10 is further provided with a control positioning member 127 on the path where the control component 40 is inserted into the placement space, for blocking the movement of the control component 40 along the first direction. The control positioning member 127 can limit the depth of the control component 40 inserted into the placement space.

[0139] It is worth mentioning that a groove structure can also be provided on the end of the control positioning member 127 facing the control component 40, and a plug-in member 45 is correspondingly provided on the end surface of the control component 40 facing the control positioning member 127. The plug-in member 45 can be inserted into the groove structure of the control positioning member 127 to facilitate the positioning of the control component 40.

[0140] Figure 11 shows a schematic structural diagram of a portion of the frame 12 provided in some embodiments of the present application, Figure 22 Another structural schematic diagram of a plurality of energy storage devices provided in some embodiments of the present application when connected is shown.

[0141] See also Figure 11 As shown, in some embodiments, the cabinet 10 of the present application is provided with an electrical compartment and an air-conditioning compartment 16 in addition to the accommodating cavity 14. Specifically, a first partition plate 128 is further provided inside the cabinet 10. The first partition plate 128 is spaced apart from one end of the cabinet 10 on the opposite side of the length, and is used to form an accommodating area separated from the accommodating cavity 14 in the cabinet 10. A second partition plate 129 is also provided inside the cabinet 10. The second partition plate 129 is located in the accommodating area. The second partition plate 129 is used to divide the accommodating area into two sub-spaces. The two sub-spaces are distributed along the first direction of the cabinet 10. The two sub-spaces are respectively used to form an electrical compartment 15 and an air-conditioning compartment 16. The electrical compartment 15 is used to accommodate the electrical module 80, and the air-conditioning compartment 16 is used to accommodate the air conditioner. The electrical compartment 15 and the air-conditioning compartment 16 are located on the same side of the length direction of the cabinet 10.

[0142] By arranging the electrical compartment 15 and the air conditioning compartment 16 at one end of the cabinet 10 in the longitudinal direction, the electrical and air conditioning components required for the storage cavity 14 are concentrated at one end of the cabinet 10, eliminating the need to install air conditioning and electrical components in every storage cavity 14. This simplifies the structure, reduces the number of components, and eases the assembly difficulty of the energy storage device. Furthermore, arranging the electrical compartment 15 and the air conditioning compartment 16 on the same side of the cabinet 10 in the longitudinal direction reduces the space required for the cabinet 10 in the longitudinal direction. When multiple energy storage devices are arranged along the length, the maintenance space between adjacent energy storage devices is greatly reduced, thereby reducing space utilization.

[0143] Combine Figure 22As shown, taking the arrangement of two energy storage devices along the length direction as an example, since an electrical compartment 15 and an air-conditioning compartment 16 are provided on one side of the cabinet 10 and no electrical compartment 15 and air-conditioning compartment 16 are provided on the other side, the ends of the two cabinets 10 where no electrical compartment 15 and air-conditioning compartment 16 are provided can be placed relative to and fitted together. This not only facilitates the repair and maintenance of the electrical compartments 15 and air-conditioning compartments 16 at both ends, but also eliminates the need to reserve maintenance space in the middle of the cabinet 10. If electrical compartments 15 and air-conditioning compartments 16 are provided at both ends of the cabinet 10 in the length direction, when the two cabinets 10 are arranged in the length direction, a certain space needs to be left between the two cabinets 10 to facilitate the repair and maintenance of the electrical compartments 15 and air-conditioning compartments 16 on the cabinet 10.

[0144] Figure 12 1 shows a schematic structural diagram of the assembly of the electrical cabinet 50 and the electrical module 80 provided in some embodiments of the present application. Figure 13 A schematic structural diagram of an electrical cabinet 50 provided in some embodiments of the present application is shown.

[0145] See also Figure 3 、 Figure 12 and Figure 13 As shown, in some embodiments, an electrical cabinet 50 is detachably connected to the electrical compartment 15 , and an electrical module 80 is disposed in the electrical cabinet 50 .

[0146] Specifically, the electrical cabinet 50 includes an electrical frame 51, and a partition is provided on the electrical frame 51. The electrical module 80 is placed in the partition. The electrical cabinet 50 of the present application is formed by a plurality of plate-like structures, or is connected by a plurality of connecting rods. The overall shape of the electrical cabinet 50 is square. The size of the electrical cabinet 50 is adapted to the size of the electrical compartment 15. The electrical frame 51 also includes a first connector 511 and a second connector 512. The first connector 511 and the second connector 512 are respectively connected to the two ends of the electrical frame 51 in the height direction. When the electrical frame 51 is placed in the electrical compartment 15, the height direction of the electrical frame 51 is parallel to the height direction of the cabinet body 10. The electrical frame 51 is connected to the cabinet body 10 through the first connector 511 and the second connector 512.

[0147] It should be noted that the first connector 511 and the second connector 512 can be detachable connecting structures such as a snap-on structure, a buckle structure, or a screw. For example, the first connector 511 of the present application can be an L-shaped connecting rib, one end of which is fixedly connected to the top of the electrical frame 51 by a screw. When the electrical frame 51 is accommodated in the electrical compartment 15, the other end of the connecting rib is connected to the cabinet 10 by a screw. The second connector 512 of the present application can be a screw that passes through the bottom of the electrical frame 51. When the electrical frame 51 is accommodated in the electrical compartment 15, the bottom of the electrical frame 51 can be connected to the cabinet 10 by a screw.

[0148] In some embodiments, a cabinet cavity is formed in the electrical cabinet 50, and a partition 53 and a lower beam 54 are provided in the electrical cabinet 50. The partition 53 and the lower beam 54 are spaced apart along the height direction of the electrical compartment 15, so that along the height direction of the electrical compartment 15, the partition 53 and the lower beam 54 divide the electrical compartment 15 into a first compartment 55, a second compartment 56 and a third compartment 57. The first compartment 55, the second compartment 56 and the third compartment 57 are all used to accommodate the electrical module 80.

[0149] In the present application, the electrical module 80 includes a pressure storage and fire protection assembly 83, a communication control assembly 82 and a convergence assembly 81, which are respectively installed in the first compartment 55, the second compartment 56 and the third compartment 57.

[0150] Among them, the convergence assembly 81 is connected to the lower beam 54, the communication control assembly 82 is connected to the lower beam 54 and the partition 53, a connecting plate 52 is also provided in the first compartment 55, and the pressure storage fire fighting assembly 83 is connected to the partition 53 and the connecting plate 52.

[0151] It should be noted that the bus assembly 81 and the lower beam 54 can be detachably connected by screws, the communication control assembly 82 can be detachably connected to the lower beam 54 and the partition 53 by screws, and the pressure storage and fire protection assembly 83 can be detachably connected to the partition 53 and the connecting plate 52 by screws. In this way, a detachable connection between the electrical module 80 and the electrical cabinet 50 can be achieved, making the entire connection structure between the electrical cabinet 50 and the electrical module 80 modular, which is convenient for assembly and disassembly, and is also convenient for repair and maintenance.

[0152] Of course, the busbar assembly 81 , the communication control assembly 82 and the pressure storage fire protection assembly 83 can also be connected to the electrical cabinet 50 via a detachable structure such as a snap-fit ​​structure or a buckle structure.

[0153] In some embodiments, a first guide rail 58 and a second guide rail 59 are respectively provided in the first compartment 55 and the second compartment 56. Part of the structure of the pressure storage fire protection assembly 83 is used to slide with the first guide rail 58, so that the pressure storage fire protection assembly 83 can slide relative to the electrical cabinet 50, and a pull-out installation structure is formed between the pressure storage fire protection assembly 83 and the electrical cabinet 50. Part of the structure of the communication control assembly 82 is used to slide with the second guide rail 59, so that the communication control assembly 82 can slide relative to the electrical cabinet 50, and a pull-out installation structure is formed between the communication control assembly 82 and the electrical cabinet 50.

[0154] Figure 14 A schematic structural diagram of a busbar assembly 81 provided in some embodiments of the present application is shown. Figure 15 shows another structural schematic diagram of the busbar assembly 81 provided in some embodiments of the present application, Figure 161 shows a schematic structural diagram of a communication control assembly 82 provided in some embodiments of the present application. Figure 17 Schematic diagram of the structure of the panel 822 provided in some embodiments of the present application is shown. Figure 18 shows a schematic structural diagram of an energy storage device provided in some embodiments of the present application, Figure 19 A structural schematic diagram of a fire protection pipeline assembly 60 provided in some embodiments of the present application is shown.

[0155] See also Figure 11 、 Figure 12 and Figure 15 As shown, in some embodiments, the pressure storage fire protection assembly 83 can be used to provide fire protection for the accommodating cavity 14. Specifically, a fire protection pipe assembly 60 is also provided inside the cabinet 10. The fire protection pipe assembly 60 includes a gas fire protection pipe assembly 62 and a water fire protection pipe assembly 63. The gas fire protection pipe assembly 62 includes a gas fire protection main pipe 621 and a gas fire protection branch pipe 622. The gas fire protection main pipe 621 extends along the length of the cabinet 10 and passes through each accommodating cavity 14. Multiple gas fire protection branch pipes 622 are connected to the gas fire protection main pipe 621. One or more gas fire protection branch pipes 622 can be provided in each accommodating cavity 14. The water fire protection pipe assembly 63 includes a water fire protection main pipe 631 and a water fire protection branch pipe 632. The water fire protection main pipe 631 extends along the length of the cabinet 10 and passes through each accommodating cavity 14. Multiple water fire protection branch pipes 632 are connected to the water fire protection main pipe 631. One or more water fire protection branch pipes 632 can be provided in each accommodating cavity 14.

[0156] It can be understood that both the gas fire main 621 and the water fire main 631 can be connected to the pressure storage type fire fighting assembly, and the pressure storage type fire fighting assembly can transport the fire-fighting gas or liquid to the fire branch pipe in the accommodating cavity 14 that requires fire-fighting treatment through the gas fire main 621 and / or the water fire main 631. Nozzles are provided on the gas fire branch pipe 622 and the water fire branch pipe 632, and the fire-fighting gas and liquid can be sprayed into the accommodating cavity 14 from the nozzles of the gas fire branch pipe 622 and the water fire branch pipe 632 respectively.

[0157] In some embodiments, the fire protection pipe assembly 60 also includes a cluster fire protection pipe assembly 61, which includes a cluster fire protection main pipe 611 and a cluster fire protection branch pipe 612. A plurality of cluster fire protection branch pipes 612 are connected to the cluster fire protection main pipe 611. A cluster fire protection port is provided on the front support 311 of the battery module 30. The cluster fire protection branch pipe 612 can be connected to the cluster fire protection port. The cluster fire protection main pipe 611 is used to transmit fire protection medium, and can transport the medium to the corresponding battery module 30 that needs fire protection, so as to extinguish the fire of each battery module 30 separately.

[0158] It should be noted that in order to achieve independent fire protection for the battery module 30 and to take into account fire protection applications in multiple scenarios, a hanging fire pump 64 can also be installed outside the cabinet 10. It is connected to one end of the cabinet 10 in the longitudinal direction via a connector, specifically to the end where the electrical compartment 15 and the air conditioning compartment 16 are located. One or more fire pumps 64 can be installed. When one fire pump 64 is installed, the fire pump 64 can be connected to the cluster fire main 611 to provide independent fire protection for the battery module 30. Of course, when a single fire pump 64 is installed, the fire pump 64 can also be connected to the gas fire main 621 and the water fire main 631.

[0159] When a plurality of fire pumps 64 are provided, one of the fire pumps 64 may be connected to the cluster fire main 611 , and the other fire pumps 64 may be connected to the gas fire main 621 and / or the water fire main 631 .

[0160] When setting up the fire-fighting assembly, the pressure storage fire-fighting assembly 83 or the fire-fighting pump 64 can be selected for fire-fighting according to different application scenarios and different needs, or the two can be used together.

[0161] It is worth mentioning that the cluster fire main pipe 611, the gas fire main pipe 621 and the water fire main pipe 631 are connected to the bottom of the cabinet 10, and the cluster fire branch pipe 612, the gas fire branch pipe 622 and the water fire branch pipe 632 extend along the height direction of the cabinet 10, wherein the gas fire branch pipe 622 and the water fire branch pipe 632 are provided with sprinkler heads in the extension direction for spraying fire-fighting media.

[0162] Figure 20 A structural schematic diagram of a partial structure of a fourth energy storage device provided in some embodiments of the present application is shown.

[0163] Combine Figure 20 As shown, in some feasible methods, a fire detection structure 70 is also provided on the cabinet 10. The fire detection structure 70 includes a detector 71 and a cover 72. The detector 71 is used to detect the temperature and humidity inside the cabinet 10. According to the information detected by the detector 71, it is determined whether the accommodating cavity 14 inside the cabinet 10 needs to be subjected to fire treatment.

[0164] A mounting groove 19 is provided at the top of the frame 12, and the detector 71 is accommodated in the mounting groove 19. The cover 72 can be covered on the mounting groove 19. The cover 72 can be connected to the cabinet 10 by snapping, buckling or screws. When the cover 72 is connected to the cabinet 10, it can abut against the detector 71 to press the detector 71 into the mounting groove 19, or the detector 71 can also be directly connected to the cabinet 10 to ensure the stability of the position of the detector 71.

[0165] It is worth mentioning that the cabinet body 10 can also open a circle of sink grooves around the installation groove 19, and a sealing structure such as a rubber pad can be set in the sink groove. When the cover plate 72 is connected to the cabinet body 10, the cover plate 72 abuts against the sealing structure, which can seal the installation groove 19 and prevent water vapor from entering the installation groove 19.

[0166] In the present application, a wire threading opening is provided at the top of the cabinet 10, and a wire threading channel is formed within a portion of the structure of the frame 12, such as a wire threading cavity provided within the top column 121 described below, which forms the wire threading channel. The wire threading channel is connected to the wire threading opening, and the cable of the detector 71 can enter the wire threading channel through the wire threading opening. The cable of the detector 71 enters the wire threading channel through the wire threading opening. By arranging the cable of the detector 71 within the wire threading channel, it is convenient to store and route the cable of the detector 71. When the detector 71 needs maintenance or debugging, the fire detection cover 72 is opened, and the detector 71 is pulled out for maintenance or debugging. After the debugging is completed, the structural installation is reset. The maintenance and debugging of the detector 71 can be completed without pulling out the battery pack, thereby reducing the maintenance time. In addition, by setting the detector 71 on the top of the cabinet 10 and accommodating the cable of the detector 71 in the top column 121, the space of the system can be maximized, which is conducive to increasing the space of the accommodating cavity 14, increasing the number of battery cells in the battery module 30 in the accommodating cavity 14 or the size of the battery module 30, thereby increasing the capacity of the battery module 30.

[0167] In some embodiments, see Figure 16 and Figure 17 As shown, the communication control assembly 82 includes a rear frame 821 and a panel 822. The rear frame 821 is connected to the panel 822. The rear frame 821 can be formed by connecting multiple rod structures, and the rear frame 821 is formed with a first accommodating compartment 8211 and a second accommodating compartment 8212. The first accommodating compartment 8211 is used to place devices that do not require maintenance or are not easily damaged, and the second accommodating compartment 8212 is used to place vulnerable devices. The panel 822 is detachably connected to one end of the rear frame 821 close to the second accommodating compartment 8212 by a snap-on structure, a buckle structure or screws. When the panel 822 is connected to the rear frame 821, the second accommodating compartment 8212 and the devices in the accommodating compartment can be covered. When the devices in the second accommodating compartment 8212 are damaged, the panel 822 can be removed to repair and maintain the devices.

[0168] The panel 822 is provided with a signal power supply interface area 8221 , a signal modulation interface area 8222 , a micro-break maintenance interface area 8223 and an auxiliary power supply interface area 8224 , which are respectively connected to corresponding modules in the rear frame 821 .

[0169] See also Figure 14 and Figure 15As shown, in some embodiments, the bus assembly 81 can be connected to the control component 40 in each accommodating cavity 14. The control component 40 is provided with two external output ports, and the external output ports and the bus assembly 81 are connected by a wiring harness. The control component 40 directs the current of the battery module 30 from the two external output ports into the input end of the bus assembly 81 and merges them into one path. The bus assembly 81 can effectively allocate and manage the input current.

[0170] In the present application, in order to connect the control component 40 and the bus assembly 81, a power line 17 is also provided in the cabinet 10. The power line 17 is located at the bottom of the cabinet 10 and extends along the length direction of the cabinet 10. One end of the power line 17 is connected to the external output port on the control board 41, and the other end is connected to the input end of the bus assembly 81.

[0171] It should be noted that the busbar assembly 81 is provided with multiple outgoing lines, including a first outgoing line 811 , a second outgoing line 812 , a third outgoing line 813 and a fourth outgoing line 814 . Each outgoing line corresponds to a control component 40 , and the four outgoing lines are independently provided.

[0172] One end of the four outgoing lines passes through the body of the bus assembly 81 and extends to the surface of the bus assembly 81. In this application, the first outgoing line 811 and the fourth outgoing line 814 are arranged side by side, and the second outgoing line 812 and the third outgoing line 813 are arranged side by side to ensure that the outgoing lines are arranged in an orderly manner on the bus assembly 81.

[0173] See also Figure 18 As shown, in some embodiments, the energy storage device further includes a valve structure 20 for regulating the air pressure within the cabinet 10. The valve structure 20 includes an air inlet valve 23, an active air release valve 21, and a passive air release valve 22. The active air release valve 21 can be disposed at an end of the frame 12 away from the electrical compartment 15. Both the active air release valve 21 and the passive air release valve 22 are disposed at an end of the frame 12 closer to the air conditioning compartment 16, and the outlets of both the active air release valve 21 and the passive air release valve 22 are connected to the air conditioning compartment 16. The space inside the cabinet 10 between the air intake valve 23 and the active air relief valve 21 can form a convection channel. When the energy storage device generates combustible gas that needs to be discharged, the air flow can flow into the cabinet 10 from the air intake valve 23, and the air flow can flow toward the active air relief valve 21. During the flow process, the air flow can drive the combustible gas inside the cabinet 10 to flow toward the active air relief valve 21 and the passive air relief valve 22, so as to discharge the combustible gas inside the cabinet 10 from the active air relief valve 21 and the passive air relief valve 22.

[0174] The air intake valve 23, active air release valve 21, and passive air release valve 22 of the present application are disposed at both ends of the cabinet 10 in the longitudinal direction. This maximizes the convection path and ensures that the combustible gas inside the cabinet 10 is fully discharged. Furthermore, the outlets of both the active exhaust valve and the passive exhaust valve are connected to the air conditioning compartment 16. The air outlet of the air conditioning unit 161 within the air conditioning compartment 16 can be disposed toward the active air release valve 21 and the passive air release valve 22. The airflow from the air conditioning unit 161 can assist in accelerating the flow rate of the gas discharged from the air release valve, thereby speeding up the discharge of the combustible gas inside the cabinet 10.

[0175] See also Figure 1 、 Figure 2 、 Figure 11 and Figure 18 As shown, in some embodiments, the cabinet 10 includes a frame 12, a panel 11, and a door 13. The frame 12 defines a receiving cavity 14. The panel 11 surrounds the outer periphery of the frame 12 and is used to limit the opening direction of the receiving cavity 14. One end of the door 13 is rotatably connected to the frame 12. The door 13 is arranged corresponding to the receiving cavity 14. When the door 13 is rotated toward the mounting position 141, the mounting position 141 can be closed. When the door 13 is rotated away from the mounting position 141, the mounting position 141 can be opened.

[0176] The frame 12 of the present application can be formed by connecting a plurality of plate structures to form a box structure with an internal accommodating space, or the frame 12 is connected by a plurality of columns to form a hollow structure with an accommodating space. In the embodiment of the present application, the frame 12 includes a top column 121, a bottom column 124 and a side column 123. The top column 121 and the bottom column 124 are spaced apart in the second direction. The side column 123 is located between the top column 121 and the bottom column 124, and the two ends of the side column 123 in the second direction are respectively connected to the top column 121 and the bottom column 124. The top column 121, the bottom column 124 and the side column 123 are surrounded to form a hollow square frame 12 structure. The enclosure 11 is surrounded on the end face of the frame 12 structure. It should be noted that one end of the frame 12 structure in the first direction is used to form an opening of the accommodating cavity 14. Therefore, the end does not need to be provided with the enclosure 11, and only needs to be connected to the warehouse door 13.

[0177] Reference Figure 21 As shown, in this application, the battery module 30 and the cabinet 10 are connected in a drawer-like manner, that is, the doors 13 corresponding to the multiple accommodating cavities 14 can all be set on the same side of the cabinet 10, so that one end of the cabinet 10 in the first direction is used to open and close the accommodating cavities 14. In this way, when arranging two energy storage devices, the energy storage devices can be arranged along the first direction of the cabinet 10, and the ends of the two energy storage devices facing away from the doors 13 can be connected together, thus reducing the space occupied by the cabinet 10.

[0178] In some embodiments, a plurality of support columns 122 are further provided inside the frame 12, and some of the support columns 122 are combined into a group. Along the length direction of the frame 12, multiple groups of support columns 122 are arranged at intervals, and along the depth direction of the cabinet 10, each group of support columns 122 is arranged at intervals with multiple support columns 122. The support columns 122 extend along the height direction of the frame 12, and the two ends of the extension direction of the support columns 122 are respectively connected to the top column 121 and the bottom column 124.

[0179] The gap between two adjacent groups of support columns 122 is used to form a accommodating cavity 14. A group of support columns 122 near one end of the frame 12 in the length direction and the enclosure 11 at that end are spaced apart, and the gap is used to form an electrical compartment 15 and an air conditioning compartment 16.

[0180] It is worth mentioning that because the electrical compartment 15 in the cabinet 10 is formed by support columns 122 arranged at intervals, the space between two adjacent support columns 122 can be used to store the power line 17 and the cooling pipe 18, thereby effectively utilizing the space inside the cabinet 10 and reducing the space occupancy rate. When the power line 17 and the cooling pipe 18 are arranged between the support columns 122, the two can be respectively arranged in the gaps between two different support columns 122 to achieve electro-hydraulic separation.

[0181] In addition, by setting a support column 122 inside the cabinet 10, the gas fire branch pipe 622 and the water fire branch pipe 632 can be set along the support column 122 and can be fixed to the support column 122 through a bundling structure, which is beneficial to the orderly arrangement of the pipelines and the spraying of fire-fighting media.

[0182] A second aspect of the present application further provides an energy storage system, comprising a plurality of the above-mentioned energy storage devices, wherein the plurality of energy storage devices are electrically connected.

[0183] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0184] In the description of the present invention, it should be understood that the terms "including" and "having" and any variations thereof used in the embodiments of the present application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or are inherent to these processes, methods, products or apparatuses.

[0185] Unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," "fixed," etc. should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integration; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this disclosure based on the specific circumstances. Furthermore, the terms "first," "second," etc., etc., are used for descriptive purposes only and should not be construed to indicate or imply relative importance or implicitly specify the quantity of the technical features indicated.

[0186] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An energy storage device, characterized in that: include: A cabinet (10), wherein the cabinet (10) is provided with a receiving cavity (14), the receiving cavity (14) is provided with a mounting position (141), one end of the mounting position (141) is open, and the mounting position (141) is provided with a limiting structure (125); and A battery module (30) is provided, wherein the battery module (30) can be inserted into the installation position (141) through an opening of the installation position (141), and the battery module (30) is adapted to cooperate with the limiting structure (125) so as to be detachably connected to the cabinet (10).

2. The energy storage device according to claim 1, characterized in that The opening of the installation position (141) is arranged at one end in the depth direction of the cabinet (10); the battery module (30) includes a cluster tray (31); along the height direction of the cabinet (10), one end of the cluster tray (31) can abut against the limiting structure (125); and the limiting structure (125) is suitable for supporting the cluster tray (31).

3. The energy storage device according to claim 2, characterized in that The battery module (30) further comprises a plurality of stacked battery cell groups (33), wherein the plurality of battery cell groups (33) are fixedly arranged on the cluster tray (31).

4. The energy storage device according to claim 3, characterized in that Along the stacking direction of the battery cell groups (33), each of the battery cell groups (33) includes a first module (331) and a second module (332) that are stacked, a liquid cooling plate (34) is provided between the first module (331) and the second module (332), and a liquid cooling pipe (35), a liquid inlet (3112) and a liquid outlet (3113) are also provided on the cluster tray (31), and the liquid inlet (3112) and the liquid outlet (3113) are both connected to the liquid cooling plate (34) through the liquid cooling pipe (35).

5. The energy storage device according to claim 3, characterized in that The cluster tray (31) comprises: a front support member (311); and A bottom supporting member (312) is connected to the front supporting member (311), a predetermined angle is provided between the front supporting member (311) and the bottom supporting member (312), and the battery cell group (33) is connected to the front supporting member (311) and / or the bottom supporting member (312).

6. The energy storage device according to claim 3, characterized in that The battery module (30) further includes a cluster cover (32), wherein the cluster cover (32) is connected to the cluster tray (31), and the cluster cover (32) is arranged around the periphery of the battery cell group (33).

7. The energy storage device according to any one of claims 1 to 6, characterized in that: The battery module is one or more of a battery cluster, a battery module, and a constrained battery cell.

8. The energy storage device according to any one of claims 2 to 6, characterized in that: The limiting structure (125) includes: Side end plates (1252); and A bottom support plate (1253), the bottom support plate (1253) is connected to the side end plate (1252), the bottom support plate (1253) and / or the side end plate (1252) are connected to the cabinet (10), the cluster tray (31) is overlapped on the bottom support plate (1253), the bottom support plate (1253) is suitable for supporting the cluster tray (31), and the side end plate (1252) is suitable for limiting the movement of the cluster tray (31) along the length direction of the cabinet (10).

9. The energy storage device according to claim 8, characterized in that The limiting structure (125) further includes an upper end plate (1251), wherein the upper end plate (1251) and the bottom support plate (1253) are spaced apart along the height direction of the cabinet (10), the bottom support plate (1253) and the upper end plate (1251) are connected via the side end plate (1252), the cluster tray (31) is located between the bottom support plate (1253) and the upper end plate (1251), and the upper end plate (1251) is suitable for limiting the movement of the cluster tray (31) along the height direction of the cabinet (10).

10. The energy storage device according to claim 9, characterized in that: A limiting member (3121) is protruded from one end of the cluster tray (31) facing the upper end plate (1251), and the limiting member (3121) abuts against the upper end plate (1251).

11. The energy storage device according to claim 8, characterized in that The limiting structure (125) further comprises a rear end plate (1254), wherein the rear end plate (1254) is arranged away from the opening of the mounting position (141); when the battery module (30) is plugged into the mounting position (141), the end of the cluster tray (31) facing away from the opening of the mounting position (141) is adapted to abut against the rear end plate (1254).

12. The energy storage device according to any one of claims 2 to 6, characterized in that: The cabinet (10) is further provided with a fixing structure (126) at a position corresponding to the installation position (141); the fixing structure (126) is arranged close to an opening of the installation position (141); when the battery module (30) is plugged into the installation position (141), the battery module (30) can be detachably connected to the fixing structure (126).

13. The energy storage device according to claim 12, characterized in that: The fixing structure (126) includes: a connecting portion (1261), the connecting portion (1261) being connected to the cabinet (10); and A fixing portion (1262) is connected to the connecting portion (1261), and a fixing member (3111) is provided on the battery module (30), and the fixing member (3111) is used to connect the fixing portion (1262).

14. The energy storage device according to claim 1, characterized in that A control assembly (40) is further provided in the cabinet (10), wherein the control assembly (40) includes a control board (41). The control board (41) is detachably connected to the cabinet (10), and the positive and negative electrodes of the battery module (30) are suitable for being electrically connected to the control board (41).

15. The energy storage device according to claim 14, characterized in that: The control component (40) further includes: a cooling assembly (42); and A plurality of channel plates (43) are arranged at intervals, the cooling component (42) has an air outlet end, and a guide channel (44) is formed between at least two of the channel plates (43), one end of the guide channel (44) extends to the air outlet end of the cooling component (42), and the other end of the guide channel (44) is used to output the cold air blown out by the cooling component (42).

16. The energy storage device according to claim 15, characterized in that The cooling assembly (42) further comprises: a liquid inlet pipe (421), used for conveying cooling liquid into the cooling assembly (42); A liquid outlet pipe (422) for outputting the liquid after absorbing heat; and a liquid drain pipe (423), wherein the liquid drain pipe (423) is used to output the liquid formed by condensation; wherein, The liquid inlet pipe (421), the liquid outlet pipe (422) and the liquid drain pipe (423) are all led out from the cooling assembly (42), and the liquid inlet pipe (421) and the liquid outlet pipe (422) are both extended along the side wall of the control panel (41), and the liquid drain pipe (423) extends out of the control panel (41).

17. The energy storage device according to any one of claims 1 to 6, characterized in that: The cabinet (10) further comprises: a first partition plate (128), the first partition plate (128) being used to form an accommodating area in the cabinet (10) separated from the accommodating cavity (15); and A second partition plate (129) is used to divide the accommodating area into two sub-spaces, and the two sub-spaces are used to form an electrical compartment (15) and an air-conditioning compartment (16), wherein the electrical compartment (15) is used to accommodate the electrical module (80), and the air-conditioning compartment (16) is used to accommodate the air conditioner, and the electrical compartment (15) and the air-conditioning compartment (16) are located on the same side of the cabinet (10) in the length direction.

18. The energy storage device according to claim 17, characterized in that An electrical cabinet (50) is detachably connected to the electrical compartment (15), and the energy storage device further comprises an electrical module (80), which can be plugged into the electrical cabinet (50).

19. The energy storage device according to claim 18, characterized in that The electrical cabinet (50) includes an electrical frame (51), wherein a compartment is provided on the electrical frame (51), and the electrical module (80) is placed in the compartment. The electrical frame (51) further includes: First connecting member (511): and A second connecting member (512), wherein the first connecting member (511) and the second connecting member (512) are respectively connected to two ends of the electrical frame (51) in a height direction, and the electrical frame (51) is connected to the cabinet (10) through the first connecting member (511) and the second connecting member (512).

20. The energy storage device according to claim 19, characterized in that A cabinet cavity is formed in the electrical cabinet (50), and a partition (53) and a lower beam (54) are provided in the cabinet cavity of the electrical cabinet (50). The partition (53) and the lower beam (54) are spaced apart along the height direction of the electrical compartment (15), so that along the height direction of the electrical compartment (15), the partition (53) and the lower beam (54) divide the electrical compartment (15) into a first compartment (55), a second compartment (56) and a third compartment (57).

21. The energy storage device according to claim 20, characterized in that The electrical module (80) comprises: Pressure storage fire protection assembly (83); Communication control assembly (82); and The confluence assembly (81) is installed in sequence in the electrical cabinet (50) along the height direction of the cabinet (10), the pressure storage fire protection assembly (83), the communication control assembly (82) and the confluence assembly (81).

22. The energy storage device according to claim 21, characterized in that The confluence assembly (81) is connected to the lower beam (54), the communication control assembly (82) is connected to the lower beam (54) and the partition (53), a connecting plate (52) is further provided in the first compartment (55), and the pressure storage firefighting assembly (83) is connected to the partition (53) and the connecting plate (52).

23. The energy storage device according to claim 21, characterized in that A first guide rail (58) and a second guide rail (59) are respectively provided in the first compartment (55) and the second compartment (56); a part of the structure of the pressure storage fire protection assembly (83) is used for sliding cooperation with the first guide rail (58); and a part of the structure of the communication control assembly (82) is used for sliding cooperation with the second guide rail (59).

24. The energy storage device according to claim 17, characterized in that The energy storage device further comprises a gas valve structure (20), wherein the gas valve structure (20) comprises: An air inlet valve (23) is provided at one end of the cabinet (10) away from the electrical compartment (15); An active air release valve (21) is provided at one end of the cabinet (10) close to the air conditioning compartment (16), and an outlet of the active air release valve (21) is connected to the air conditioning compartment (16); and A passive air release valve (22) is provided at one end of the cabinet (12) close to the air conditioning compartment (16), and an outlet of the passive air release valve (22) is connected to the air conditioning compartment (16).

25. The energy storage device according to any one of claims 1 to 6, characterized in that: The cabinet (10) comprises: A frame (12), wherein the frame (12) is formed with the accommodating cavity (14); A panel (11), the panel (11) being arranged around the outer periphery of the frame (12); and A door (13), one end of which is rotatably connected to the frame (12), and the door (13) is arranged corresponding to the accommodating cavity (14) and is used to open and close the installation position (141).

26. The energy storage device according to claim 25, characterized in that The frame (12) includes: Top column (121); a bottom column (124); and The side columns (123) are arranged at intervals between the top column (121) and the bottom column (124), and the side columns (123) are located between the top column (121) and the bottom column (124), and the two ends of the side columns (123) are respectively connected to the top column (121) and the bottom column (124), and the top column (121), the bottom column (124) and the side columns (123) are surrounded to form a hollow square frame (12) structure.

27. The energy storage device according to claim 26, characterized in that A plurality of support columns (122) are further provided inside the frame (12), and along the length direction of the frame (12), the plurality of support columns (122) are spaced apart to form a plurality of groups, and along the depth direction of the cabinet (10), each group of support columns (122) is spaced apart to form a plurality of support columns (122), wherein the gap between two adjacent groups of support columns (122) is used to form a receiving cavity (14).

28. The energy storage device according to claim 27, characterized in that The energy storage device further comprises a fire protection pipeline assembly (60), wherein the fire protection pipeline assembly (60) comprises: A cluster fire fighting pipe assembly (61), wherein the cluster fire fighting pipe assembly (61) comprises a cluster fire fighting main pipe (611) and a cluster fire fighting branch pipe (612); A gas fire fighting pipe assembly (62), wherein the gas fire fighting pipe assembly (62) includes a gas fire fighting main pipe (621) and a gas fire fighting branch pipe (622); and A water fire fighting pipe assembly (63), the water fire fighting pipe assembly (63) comprising a water fire fighting main pipe (631) and a water fire fighting branch pipe (632), the cluster fire fighting main pipe (611), the gas fire fighting main pipe (621), and the water fire fighting main pipe (631) being connected to the bottom of the cabinet (10), and the cluster fire fighting branch pipe (612), the gas fire fighting branch pipe (622), and the water fire fighting branch pipe (632) being respectively located on support columns (122) inside the cabinet (10).

29. The energy storage device according to claim 25, characterized in that The cabinet (10) further comprises a fire detection structure (70), the fire detection structure (70) comprising a detector (71) and a cover plate (72), a mounting groove (19) being provided on the top of the frame (12), the detector (71) being accommodated in the mounting groove (19) and connected to the cabinet (10), and the cover plate (72) being covered in the mounting groove (19).

30. The energy storage device according to claim 29, characterized in that A wire threading opening is provided on the top of the cabinet (10), and a wire threading channel is formed inside the structure of the frame (12), and the cable of the detector (71) enters the wire threading channel through the wire threading opening.

31. An energy storage system, characterized in that: The device comprises a plurality of energy storage devices according to any one of claims 1 to 30, wherein the plurality of energy storage devices are electrically connected.

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