A cabinet body, an energy storage cabinet, an energy storage system and an electric device

Abstract

The application relates to the technical field of energy storage cabinets, and provides a cabinet body, an energy storage cabinet, an energy storage system and an electric equipment, the cabinet body comprises a shell, the shell comprises a plurality of module structures, and the plurality of module structures are suitable for externally surrounding energy storage modules. The application can simplify the structure of the energy storage cabinet and improve the assembly flexibility of the energy storage cabinet.

Description

Technical Field

[0001] This application relates to the field of energy storage cabinet technology, and in particular to a cabinet, energy storage cabinet, energy storage system and electrical equipment. Background Technology

[0002] As a device used to store electrical energy, thermal energy, and other forms of energy, energy storage cabinets have significant advantages in improving energy utilization, saving costs, protecting the environment, improving grid reliability, supporting the integration of renewable energy, and upgrading microgrids.

[0003] Currently, energy storage cabinets in related technologies are typically designed and assembled by first creating a cabinet with a receiving cavity to accommodate the battery pack, and then inserting the battery pack into the receiving cavity. This type of energy storage cabinet is structurally complex and lacks flexibility in assembly. Summary of the Invention

[0004] This application provides a cabinet, an energy storage cabinet, an energy storage system, and electrical equipment, which can simplify the structure of the energy storage cabinet and improve the assembly flexibility of the energy storage cabinet.

[0005] A first aspect of this application provides a cabinet including a housing, the housing comprising a plurality of modular structures adapted to externally enclose an energy storage module.

[0006] According to the cabinet described in the first aspect of this application, the cabinet includes a shell, which includes multiple modular structures and can externally surround the energy storage modules, thereby simplifying the structure of the energy storage cabinet and improving the assembly flexibility of the energy storage cabinet.

[0007] In one possible implementation, multiple of the said modular structures can be detachably connected and sequentially connected to form the housing.

[0008] In one possible implementation, the module structure includes:

[0009] The base has an installation area for installing energy storage modules;

[0010] The frame is connected to the outer periphery of the base;

[0011] The top cover structure is connected to the top of the enclosure, and the top cover structure, the enclosure, and the base together form an energy storage cavity for housing the energy storage module.

[0012] In one possible implementation, the base includes:

[0013] Bottom frame;

[0014] Bottom cover, connected to the bottom frame;

[0015] And an energy storage installation assembly, which is mounted on the bottom frame, wherein the energy storage module is connected to the energy storage installation assembly.

[0016] In one possible implementation, the energy storage installation assembly:

[0017] Mounting block;

[0018] And a grounding connection piece, which is disposed on the mounting block, and the energy storage module is connected to the grounding connection piece.

[0019] In one possible implementation, the energy storage mounting components are multiple and spaced apart along the width direction on the bottom frame.

[0020] In one possible implementation, the energy storage mounting components are disposed at both ends along the length of the bottom frame.

[0021] In one possible implementation, the energy storage installation assembly further includes:

[0022] An intermediate connecting piece is disposed on the bottom frame and is located between the energy storage mounting components in the length direction.

[0023] In one possible implementation, the bottom frame includes:

[0024] Bottom outline;

[0025] And a bottom reinforcing beam, which is disposed within the bottom outer frame.

[0026] In one possible implementation, the bottom reinforcing beam includes:

[0027] A crossbeam extends along the length of the bottom frame;

[0028] And longitudinal beams, extending along the width direction of the bottom frame.

[0029] In one possible implementation, the crossbeam intersects with the longitudinal beam to form a grid-like structure.

[0030] In one possible implementation, at least one of the crossbeams, the longitudinal beams, and the bottom outer frame is made of at least one of C-beams, H-beams, or I-beams.

[0031] In one possible implementation, the bottom reinforcing beam further includes:

[0032] A bottom inclined beam, wherein the bottom inclined beam is connected between the bottom outer frame and the longitudinal beam, and / or the bottom inclined beam is connected between the bottom outer frame and the transverse beam, and / or the bottom inclined beam is connected between the longitudinal beam and the transverse beam.

[0033] In one possible implementation, the bottom frame further includes:

[0034] A grounding connector is disposed at the bottom of the bottom outer frame.

[0035] In one possible implementation, the bottom frame further includes:

[0036] A corner sealing flange is disposed at the corner of the bottom outer frame, and the corner sealing flange is used to form a sealed connection with the frame.

[0037] In one possible implementation, a limiting cavity is formed between the corner sealing flange and the bottom surface of the bottom outer frame, or a limiting cavity is formed at the bottom of the corner sealing flange.

[0038] In one possible implementation, the bottom frame further includes:

[0039] A raised sealing flange is provided on the bottom outer frame, and the raised sealing flange is used to form a sealing connection with the frame.

[0040] In one possible implementation, the base further includes:

[0041] A wiring assembly for connecting the energy storage module and the power distribution bus module.

[0042] In one possible implementation, the wiring assembly includes:

[0043] The wiring harness is disposed on the bottom cover;

[0044] And a wire harness cover plate, connected to the bottom frame, the wire harness cover plate covering the wire harness.

[0045] In one possible implementation, the bottom frame has first bottom mounting holes on both sides along its width direction, and second bottom mounting holes on both sides along its length direction.

[0046] In one possible implementation, the enclosure includes:

[0047] The left frame and the right frame are connected to both sides of the bottom frame in the width direction.

[0048] In one possible implementation, the left frame and the right frame form a symmetrical structure.

[0049] In one possible implementation, both the left frame and the right frame include:

[0050] First side frame;

[0051] And a first side cover, connected to the first side frame.

[0052] In one possible implementation, the first side frame includes:

[0053] Side frame;

[0054] And a side reinforcing beam, which is disposed within the side outer frame.

[0055] In one possible implementation, the side frame includes:

[0056] Top beam;

[0057] A bottom beam, wherein the bottom beam is provided with a first connecting hole for connecting with the bottom frame;

[0058] And a side beam, which connects the top beam and the bottom beam, and has a second connecting hole.

[0059] In one possible implementation, the side reinforcement beam includes:

[0060] A main reinforcing beam is connected between the top beam and the bottom beam, and the main reinforcing beam is arranged parallel to the side beam.

[0061] In one possible implementation, the side reinforcement beam further includes:

[0062] Side inclined beams, the side inclined beams connecting the top beam and the side beams, and / or the side inclined beams connecting the top beam and the main reinforcing beam, and / or the side inclined beams connecting the bottom beam and the side beams, and / or the side wall inclined beams connecting the bottom beam and the main reinforcing beam.

[0063] In one possible implementation, the bottom beam has a threading structure on its outer side, the threading structure including threading positioning holes.

[0064] In one possible implementation, the threading structure includes:

[0065] A threading piece is provided on the bottom beam, and a threading positioning hole is formed on the threading piece.

[0066] In one possible implementation, the top of the side beam is provided with a lifting lug.

[0067] In one possible implementation, a support member is provided at the bottom of the side beam, and a limiting cavity is formed at the bottom of the bottom frame, into which the support member is inserted.

[0068] In one possible implementation, a support block is provided on the side beam for supporting the power distribution busbar module.

[0069] In one possible implementation, the side frame further includes:

[0070] A top sealing plate is provided, which is connected between the side beams and located on top of the side beams, and the top sealing plate is provided with a third connecting hole.

[0071] In one possible implementation, the enclosure further includes:

[0072] The front frame is connected to one side of the bottom frame along its length.

[0073] In one possible implementation, the front frame includes:

[0074] Second side frame;

[0075] And a second side cover, connected to the second side frame.

[0076] In one possible implementation, the second side frame forms multiple windows.

[0077] In one possible implementation, the second side cover includes:

[0078] Multiple sub-shells, each corresponding to a covered window.

[0079] In one possible implementation, the front frame further includes:

[0080] A flip component is disposed on the second side frame, and the sub-shell is connected to the flip component. The flip component is used to drive the sub-shell to open or close the window.

[0081] In one possible implementation, the subshell is provided with a handle.

[0082] In one possible implementation, the sub-shell is provided with a front frame intake valve and a front frame exhaust valve, with the front frame intake valve located below the front frame exhaust valve.

[0083] In one possible implementation, the edge of the sub-shell is provided with a first seal for forming a seal between the sub-shell and the second side frame.

[0084] In one possible implementation, the second side frame is provided with a plurality of first sealing connectors along its circumference for connecting the second side frame to the left frame and the right frame.

[0085] In one possible implementation, the first sealing connector includes:

[0086] Force-bearing part;

[0087] A connecting portion, which is connected to the force-receiving portion, wherein the force-receiving portion has a flange protruding from the connecting portion;

[0088] And a sealing gasket, the sealing gasket being disposed on the side of the flange facing the connection portion.

[0089] In one possible implementation, a second seal is provided on the side of the second side frame facing the left frame, and the connecting portion passes through the second side frame and the second seal.

[0090] In one possible implementation, the enclosure further includes:

[0091] The rear frame is connected to the other side of the bottom frame along its length.

[0092] In one possible implementation, the back box includes:

[0093] Third side frame;

[0094] And a third side cover, connected to the third side frame.

[0095] In one possible implementation, the third side frame is provided with a plurality of second sealing connectors along its circumference for connecting the third side frame to the left frame and the right frame.

[0096] In one possible implementation, the module structure further includes:

[0097] A front crossbeam frame, connected to the left frame and the right frame, is located above the front frame;

[0098] And a rear crossbeam frame, connected to the left frame and the right frame, the rear crossbeam frame being located above the rear frame.

[0099] In one possible implementation, the top cover structure includes:

[0100] A connecting top cover is attached to the top of the enclosure;

[0101] And an air-cooling structure, which is connected to the connecting top cover, and is used to generate cold air and deliver the cold air to the energy storage cavity.

[0102] In one possible implementation, the connecting top cover forms an internal cavity and an air vent communicating with the internal cavity, and the air-cooling structure includes:

[0103] A refrigeration structure is disposed in the internal cavity, and the refrigeration structure is used to generate cold air;

[0104] And a cold air housing connected to the connecting top cover, the cold air housing forming an air duct, the air duct being connected to the air outlet.

[0105] In one possible implementation, the air vent includes an air outlet and an air return vent, and the air duct includes an air outlet duct and an air return duct, the air outlet duct being connected to the air outlet and the air return duct being connected to the air return vent.

[0106] In one possible implementation, the return air inlet is disposed between the two air outlets, and the air outlet duct is disposed between the two return air ducts.

[0107] In one possible implementation, the return air vents are located on both sides of the connecting top cover in the width direction.

[0108] In one possible implementation, the air vents are located at both ends of the connecting top cover along its length, and the air ducts are located at both ends of the connecting top cover along its length.

[0109] In one possible implementation, the air outlet and part of the return air outlet are located at both ends of the length direction of the top cover, and another part of the return air outlet is located on both sides of the width direction of the top cover. Cold air enters the energy storage cavity from the air outlet and flows in opposite directions along the length direction of the top cover to form convection. The convection-flowed cold air flows to the return air outlet.

[0110] In one possible implementation, the connecting top cover includes:

[0111] Top cover body;

[0112] And a partition, wherein the top cover body is connected to the partition and forms the internal cavity.

[0113] In one possible implementation, a third seal is provided around the periphery of the return air vent.

[0114] In one possible implementation, the top cover structure further includes:

[0115] A waterproof cover having an inclined airflow guiding surface is provided circumferentially on the outer periphery of the connecting top cover, and the cold air housing is provided inside the waterproof cover.

[0116] In one possible implementation, a flow channel is formed on the partition.

[0117] In one possible implementation, top cover connecting assemblies are provided on both sides of the top cover body in the width direction for connecting the top cover body to the frame.

[0118] In one possible implementation, the top cover connection assembly includes:

[0119] Top cover connecting block;

[0120] And a top cover fastener that can pass through the top cover connecting block and the frame.

[0121] In one possible implementation, the module structure further includes:

[0122] The air duct cover is connected to the energy storage module and forms an internal air duct with the energy storage module. The internal air duct is connected to the air outlet duct.

[0123] In one possible implementation, a gap is formed between the duct cover and the energy storage module, and the gap is filled with sealant.

[0124] In one possible implementation, the duct cover is formed with a flange that is connected to the energy storage module.

[0125] In one possible implementation, a fourth seal is provided between the duct cover and the connecting top cover.

[0126] In one possible implementation, the frame and the base form a staggered connection.

[0127] In one possible implementation, the outer surface of the housing is provided with a heat insulation device, which is used to form an air duct communicating with the outside.

[0128] In one possible implementation, the thermal insulation device includes:

[0129] The first heat insulation element is spaced apart from the outer wall of the shell and forms a heat insulation cavity;

[0130] The second heat insulation element is located inside the heat insulation cavity and is connected between the outer wall and the first heat insulation element.

[0131] When the second heat insulation component melts, an air duct communicating with the outside is formed at the mounting cavity.

[0132] In one possible implementation, the second heat insulation element is a low-melting-point material. When the temperature of the second heat insulation element is greater than or equal to a preset temperature, the second heat insulation element melts to form an air duct at the heat insulation cavity that communicates with the outside of the first heat insulation element.

[0133] In one possible implementation, the thermal insulation device further includes a third thermal insulation element connected to the housing, the third thermal insulation element being located on opposite sides of the housing along with the first thermal insulation element.

[0134] In one possible implementation, the first insulation member has an insulating cavity for accommodating the phase change material.

[0135] The second aspect of this application provides an energy storage cabinet, including the cabinet body described in the first aspect and an energy storage module, wherein the energy storage module is disposed in the cabinet body.

[0136] According to the energy storage cabinet described in the second aspect of this application, the energy storage cabinet can realize the installation of the energy storage module from the inside out, that is, after the energy storage module is installed, the cabinet surrounds the outer periphery of the energy storage module. This can achieve a tight fit between the cabinet and the energy storage module, which can improve the volumetric energy density of the energy storage cabinet. On the other hand, the cabinet surrounding the energy storage module can also reduce the assembly difficulty of the energy storage cabinet and simplify the assembly process.

[0137] In one possible implementation, the energy storage module includes a battery pack or battery cluster.

[0138] In one possible implementation, the battery cluster includes:

[0139] Overlapping battery assemblies;

[0140] And a module connection bracket, which is disposed at the end of the battery assembly and is used to connect two adjacent battery assemblies.

[0141] In one possible implementation, the module connection bracket includes:

[0142] The connecting ends of two adjacent module connecting brackets can form a fixed connection.

[0143] In one possible implementation, the module connection bracket further includes:

[0144] A support portion extends along the thickness direction of the battery assembly, and the connecting end is connected to both ends of the support portion.

[0145] In one possible implementation, the connection end includes:

[0146] First connection end;

[0147] And a second connection end, wherein the dimension of the first connection end along the width direction of the battery assembly is greater than the dimension of the second connection end along the width direction of the battery assembly.

[0148] In one possible implementation, the connecting end of the module connecting bracket extends from the battery assembly in the thickness direction.

[0149] In one possible implementation, each of the battery components is configured with at least one of the module connection brackets.

[0150] In one possible implementation, the battery assembly includes an end plate, with the module connection bracket disposed on the outside of the end plate.

[0151] In one possible implementation, the module connection bracket comprises an I-beam.

[0152] In one possible implementation, the battery assembly includes:

[0153] Multiple battery cell units;

[0154] And an insulating connector, which is connected to a plurality of the battery cells.

[0155] In one possible implementation, the insulating connector is connected between two opposing module connection brackets, and the insulating connector is used to restrain a plurality of the battery cells.

[0156] In one possible implementation, the length, width, and height of the energy storage module are d1, d2, and d3, respectively, and the volume of the energy storage module is v1. The length, width, and height of the energy storage cabinet are d4, d5, and d6, respectively, and the volume of the energy storage cabinet is v2. The d1, d2, d3, d4, d5, and d6 satisfy the following relationship:

[0157] 0.867 < d1:d4 < 0.903, and / or 0.889 < d2:d5 < 0.907, and / or 0.836 < d3:d6 < 0.848;

[0158] And / or, v1 and v2 satisfy the following relationship:

[0159] 0.644 < v1: v2 < 0.695.

[0160] A third aspect of this application provides an energy storage system, comprising:

[0161] Energy storage cabinet;

[0162] And a power distribution busbar module, which is installed on the outer wall of the energy storage cabinet.

[0163] According to the energy storage system described in the third aspect of this application, the various components of the energy storage system have reasonable structural design and reliable assembly process, which can simplify the assembly process of the energy storage system and reduce the assembly difficulty of the energy storage system. The assembly of the energy storage system can realize automated production, which can reduce labor costs and time costs.

[0164] In one possible implementation, the power distribution bus module includes:

[0165] A power distribution combiner cabinet, which is constructed in a flat structure, is connected to the outer wall of the energy storage cabinet.

[0166] In one possible implementation, the power distribution bus module includes a power distribution bus shell, and the power distribution bus module includes a power distribution structure, a bus structure, a BMS structure, a cooling structure, and a fire protection structure, wherein the power distribution structure, the bus structure, the BMS structure, the cooling structure, and the fire protection structure are integrated on the power distribution bus shell.

[0167] In one possible implementation, the power distribution structure includes a low-voltage zone and a high-voltage zone, which are separated from each other.

[0168] In one possible implementation, the cooling structure is used to generate airflow that passes sequentially through the weak electrical zone and the strong electrical zone.

[0169] In one possible implementation, the fire protection structure includes:

[0170] A fire extinguishing box is connected to the outer wall of the energy storage cabinet and located above the power distribution cabinet.

[0171] In one possible implementation, the power distribution bus module further includes:

[0172] A waterproof structure is connected to the energy storage cabinet and located on both sides of the power distribution combiner cabinet. The waterproof structure includes a bending portion that extends in a direction away from the outer wall.

[0173] In one possible implementation, the energy storage cabinet has a fixing member inside it, which is connected to the energy storage module.

[0174] In one possible implementation, the energy storage system further includes:

[0175] An anti-seismic beam is attached to the outer wall of the energy storage cabinet.

[0176] In one possible implementation, the energy storage system further includes:

[0177] An energy storage converter is disposed on the outside of the energy storage cabinet.

[0178] In one possible implementation, the energy storage system further includes:

[0179] An energy storage converter is integrated into the power distribution bus module.

[0180] In one possible implementation, the energy storage system includes at least two energy storage cabinets and at least one power distribution bus module, with at least two energy storage cabinets connected in series in either the horizontal or vertical direction.

[0181] In one possible implementation, the energy storage system further includes a top cover structure, with at least one of the energy storage cabinets configured with one of the top cover structures.

[0182] In one possible implementation, the energy storage system further includes a centralized cooling station connected to multiple energy storage cabinets.

[0183] In one possible implementation, the energy storage system further includes:

[0184] The exhaust structure includes a plurality of gas collection pipes spaced apart along the height direction of the energy storage module and an exhaust pipe connected to each of the gas collection pipes, wherein the gas collection pipes are connected to the gas path of the energy storage module.

[0185] In one possible implementation, the gas collection pipeline includes a first edge pipeline, a second edge pipeline arranged along the outer periphery of the energy storage module, and a main pipeline connecting the first edge pipeline and the second edge pipeline.

[0186] In one possible implementation, the exhaust structure further includes a valve body disposed on and in communication with the exhaust pipe.

[0187] In one possible implementation, the exhaust valve is located at the top of the exhaust pipe.

[0188] The fourth aspect of this application provides an electrical device including the aforementioned energy storage system. Attached Figure Description

[0189] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0190] Figure 1 A schematic diagram of an energy storage system provided according to an embodiment of this application is shown;

[0191] Figure 2 A schematic diagram of another energy storage system provided according to an embodiment of this application is shown;

[0192] Figure 3 A schematic diagram of the structure of an energy storage system according to an embodiment of this application is shown;

[0193] Figure 4 A schematic diagram of the layout of an energy storage converter according to an embodiment of this application is shown;

[0194] Figure 5 A schematic diagram of the layout of another energy storage converter provided according to an embodiment of this application is shown;

[0195] Figure 6 A front view of an exhaust structure provided according to an embodiment of this application is shown;

[0196] Figure 7 A side view of an exhaust structure provided according to an embodiment of this application is shown;

[0197] Figure 8 A top view of an exhaust structure provided according to an embodiment of this application is shown;

[0198] Figure 9 A schematic diagram of the structure of an energy storage cabinet according to an embodiment of this application is shown;

[0199] Figure 10 An exploded view of an energy storage cabinet provided according to an embodiment of this application is shown;

[0200] Figure 11 A schematic diagram of the structure of a base provided according to an embodiment of this application is shown;

[0201] Figure 12 A schematic diagram of the structure of a left frame (right frame) according to an embodiment of this application is shown;

[0202] Figure 13 A structural schematic diagram of a left frame (right frame) from another angle according to an embodiment of this application is shown;

[0203] Figure 14 A frame structure diagram of a cabinet provided according to an embodiment of this application is shown;

[0204] Figure 15 A schematic diagram showing the fit between the support and the limiting cavity is provided.

[0205] Figure 16 A schematic diagram of a front frame structure provided according to an embodiment of this application is shown;

[0206] Figure 17 A side view of a front frame provided according to an embodiment of this application is shown;

[0207] Figure 18 A schematic diagram of a first sealing connector provided according to an embodiment of this application is shown;

[0208] Figure 19 A schematic diagram of a rear frame structure provided according to an embodiment of this application is shown;

[0209] Figure 20 A schematic diagram of a front frame connection according to an embodiment of this application is shown;

[0210] Figure 21 It shows Figure 20 A magnified view of part A in the middle;

[0211] Figure 22 A schematic diagram of a top cover structure provided according to an embodiment of this application is shown;

[0212] Figure 23 A schematic diagram of the cold air circulation of an energy storage cabinet provided according to an embodiment of this application is shown;

[0213] Figure 24 Another cold air circulation diagram of an energy storage cabinet provided according to an embodiment of this application is shown;

[0214] Figure 25 A cross-sectional view of a top cover structure provided according to an embodiment of this application is shown;

[0215] Figure 26 It shows Figure 25 A magnified view of part B in the middle;

[0216] Figure 27 A schematic diagram showing the connection between a top cover structure and a frame according to an embodiment of this application is shown;

[0217] Figure 28 This diagram illustrates the connection between a duct cover and an energy storage module according to an embodiment of this application.

[0218] Figure 29 This diagram illustrates a structural schematic of an energy storage cabinet with its front frame removed, according to an embodiment of this application.

[0219] Figure 30 It shows Figure 29A magnified view of a portion of C in the image;

[0220] Figure 31 This diagram illustrates a connection between a top cover and an air duct cover according to an embodiment of this application.

[0221] Figure 32 A top view of the cabinet structure provided according to an embodiment of this application, with the top cover removed, is shown;

[0222] Figure 33 A schematic diagram showing the connection between a heat insulation device and a housing according to an embodiment of this application is shown;

[0223] Figure 34 A side view of a heat insulation device and housing provided according to an embodiment of this application is shown;

[0224] Figure 35 A cross-sectional view of a heat insulation device provided according to an embodiment of this application is shown;

[0225] Figure 36 A schematic diagram of a battery cluster according to an embodiment of this application is shown;

[0226] Figure 37 A schematic diagram of the front end of a battery cluster according to an embodiment of this application is shown;

[0227] Figure 38 It shows Figure 37 A magnified view of a portion of D in the middle;

[0228] Figure 39 A disassembled diagram of a battery assembly provided according to an embodiment of this application is shown;

[0229] Figure 40 A top view of an energy storage system provided according to an embodiment of this application is shown;

[0230] Figure 41 It shows Figure 40 A magnified view of a portion of area E in the image;

[0231] Figure 42 A front-end schematic diagram of an energy storage cabinet provided according to an embodiment of this application is shown;

[0232] Figure 43 It shows Figure 42 A magnified view of a section of F in the middle;

[0233] Figure 44 A schematic diagram of the left side of an energy storage cabinet provided according to an embodiment of this application is shown;

[0234] Figure 45A layout diagram of an energy storage system provided according to an embodiment of this application is shown;

[0235] Figure 46 A layout diagram of another energy storage system provided according to an embodiment of this application is shown;

[0236] Figure 47 A layout diagram of another energy storage system provided according to an embodiment of this application is shown;

[0237] Figure 48 An exploded view of a base provided according to an embodiment of this application is shown;

[0238] Figure 49 A schematic diagram of the assembly of a battery assembly and a base according to an embodiment of this application is shown;

[0239] Figure 50 A schematic diagram of a battery assembly provided according to an embodiment of this application is shown;

[0240] Figure 51 This diagram illustrates an assembly schematic of a battery cluster on a base according to an embodiment of this application.

[0241] Figure 52 An assembly schematic diagram of a duct cover provided according to an embodiment of this application is shown;

[0242] Figure 53 An assembly diagram of a left frame and a right frame according to an embodiment of this application is shown;

[0243] Figure 54 An assembly diagram of a front frame and a right frame according to an embodiment of this application is shown;

[0244] Figure 55 An assembly schematic diagram of a top cover structure provided according to an embodiment of this application is shown;

[0245] Figure 56 An assembly diagram of a power distribution bus module according to an embodiment of this application is shown;

[0246] Figure 57 A schematic diagram of the assembly of a battery pack and a cabinet according to an embodiment of this application is shown.

[0247] Figure label:

[0248] 100-Base; 110-Bottom Frame; 120-Bottom Sheath; 130-Energy Storage Mounting Assembly; 140-Wiring Assembly; 110a-First Bottom Mounting Hole; 110b-Second Bottom Mounting Hole; 111-Bottom Outer Frame; 112-Bottom Reinforcing Beam; 113-Grounding Connector; 114-Corner Sealing Flange; 115-Raised Sealing Flange; 131-Mounting Block; 132-Grounding Connecting Piece; 133-Intermediate Connecting Piece; 141-Wire Harness; 142-Wire Harness Cover Plate; 1121-Crossbeam; 1122-Longitudinal Beam; 1123-Bottom Inclined Beam; 1141-Limiting Cavity; 1321-Grounding Connection Point;

[0249] 200 - Enclosure; 210 - Left frame; 220 - Right frame; 230 - Front frame; 240 - Rear frame; 211 - First side frame; 212 - First side cover; 230a - Flush end; 230b - Non-flush end; 230c - Notch; 231 - Second side frame; 232 - Second side cover; 233 - Flip assembly; 234 - First seal; 235 - First sealing connector; 236 - Second seal; 241 - Third side frame; 242 - Third side cover; 243 - Second sealing connector; 231a - Window; 231b - Front top edge; 231c - Front side edge; 231d - Front bottom edge; 241a - Rear top edge; 241b - Rear side edge; 241c - Rear bottom edge; 2321 - Sub- Shell; 2111-Side outer frame; 2112-Side reinforcing beam; 2113-Wire threading structure; 2114-Supporting component; 2115-Support block; 2351-Strength-bearing part; 2352-Connecting part; 2353-Sealing gasket; 2354-Flange; 2111a-Top beam; 2111b-Bottom beam; 2111c-Side beam; 2111d-Top sealing plate; 2112a-Main reinforcing beam; 2112b-Side inclined beam; 2113a-Wire threading positioning hole; 2113b-Wire threading piece; 2321a-Handle; 2321b-Front frame air intake valve; 2321c-Front frame exhaust valve; 2111b1-First connecting hole; 2111c1-Second connecting hole; 2111c2-Lifting lug; 2111d1-Third connecting hole;

[0250] 300 - Top cover structure; 310 - Connecting top cover; 320 - Air-cooled structure; 330 - Third sealing element; 340 - Waterproof cover; 350 - Top cover connecting assembly; 310a - Return air inlet; 311 - Top cover body; 312 - Partition; 321 - Cooling structure; 322 - Cold air housing; 341 - Airflow guide surface; 351 - Top cover connecting block; 352 - Top cover fastener; 3121 - Airflow guide groove; 322a - Outlet air duct; 322b - Return air duct;

[0251] 400 - Front crossbeam frame; 401 - Front crossbeam mounting holes;

[0252] 500 - Rear crossbeam frame; 501 - Rear crossbeam mounting holes;

[0253] 600 - Air duct cover; 601 - Internal air duct; 602 - Sealant; 610 - Flanged edge; 620 - Bottom wall; 630 - Side wall; 640 - Fourth sealant;

[0254] 700 - Battery assembly; 710 - Battery cell; 720 - End plate; 712 - Insulating connector; 713 - Metal connector;

[0255] 800 - Module connection bracket; 810 - Connection end; 820 - Support part; 811 - First connection end; 812 - Second connection end; 8111 - Groove;

[0256] 900-Wire Harness Cover;

[0257] 10-Energy storage cabinet; 11-Cabinet body; 12-Energy storage module; 13-Fixed component; 11a-Module structure; 11b-Energy storage cavity; 11c-Installation area; 11d-Shell; 12a-Battery cluster; 12b-Battery pack;

[0258] 20-Power distribution busbar module; 20a-Power distribution busbar cabinet; 20b-Fire protection box; 20c-Waterproof structure; 20d-Cooling structure; 20c1-Bending section; 20c2-First waterproof box; 20c3-Second waterproof box;

[0259] 30 - Energy storage converter;

[0260] 40 - Exhaust structure; 41 - Gas collection pipe; 42 - Exhaust pipe; 43 - Valve body; 41a - First edge pipe; 41b - Second edge pipe; 41c - Main pipe;

[0261] 50 - Seismic-resistant beam;

[0262] 60 - Thermal insulation device; 61 - First thermal insulation component; 62 - Second thermal insulation component; 63 - Third thermal insulation component; 60a - Thermal insulation cavity; 611 - Thermal insulation inner cavity. Detailed Implementation

[0263] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0264] With the rapid development of new energy technologies, energy storage cabinets, as a new type of energy storage device, are playing an increasingly important role in the new energy industry due to their many advantages. These advantages are mainly reflected in improving energy utilization, saving costs, protecting the environment, improving grid reliability, supporting the integration of renewable energy, and realizing the upgrading and transformation of microgrids.

[0265] Energy storage cabinets can be applied in various fields, including photovoltaic (PV) power generation, wind power generation, new energy vehicles, and power ancillary services, each offering different benefits. For example, in PV power generation, energy storage cabinets can balance power generation and consumption, improving the utilization rate of PV power. During peak PV power generation periods, the energy storage system can store excess energy and release it during peak demand periods, thus achieving peak shaving and valley filling and optimizing power supply. In the new energy vehicle sector, energy storage cabinets can provide charging services, enabling energy replenishment for new energy vehicles. Furthermore, energy storage systems can also utilize the batteries of new energy vehicles as energy storage devices, facilitating interaction between the new energy vehicle and the energy storage system and improving the efficiency of new energy vehicle use.

[0266] Energy storage cabinets typically consist of a cabinet and energy storage modules housed within it. These modules can be battery packs, battery clusters, etc. Taking battery packs as an example, in the design and assembly of energy storage cabinets in related technologies, a cabinet with a receiving cavity is usually designed first to accommodate the battery pack, and then the battery pack is inserted into the receiving cavity. In this type of energy storage cabinet, the installation of the battery pack is greatly affected by the receiving cavity, making it difficult for the battery pack to fully utilize the space of the receiving cavity, thus affecting the volumetric energy density of the energy storage cabinet.

[0267] Analysis of the structure of the energy storage cabinet reveals that it is assembled by first installing the battery pack outside and then inside. That is, the cabinet body is formed first, and then the battery pack is installed inside the cabinet. During the installation process, the battery pack needs to be inserted into the receiving cavity under the action of external force. In order to prevent damage to the battery pack, the battery pack is usually installed in a relatively gentle way. For example, a gap is left between the battery pack and the cavity wall. This installation method cannot make full use of the space of the receiving cavity, thus affecting the volumetric energy density of the energy storage cabinet.

[0268] In addition, the battery pack is installed using an insert method, which makes the installation of the battery pack more difficult and makes the overall assembly process of the energy storage cabinet more complicated.

[0269] Based on the above situation and problems, this application provides an energy storage cabinet that allows for the installation of energy storage modules from the inside out. That is, after the energy storage modules are installed, the cabinet surrounds the outer periphery of the energy storage modules. This allows for a tight fit between the cabinet and the energy storage modules, which can improve the volumetric energy density of the energy storage cabinet. On the other hand, surrounding the energy storage modules with the cabinet can also reduce the assembly difficulty of the energy storage cabinet and simplify the assembly process.

[0270] Based on the aforementioned energy storage cabinet, this application also provides an energy storage system and an electrical device, which can be a new energy vehicle, etc. The energy storage system can provide charging services for new energy vehicles.

[0271] The energy storage system includes an energy storage cabinet and a power distribution bus module. The power distribution bus module is connected to the outer wall of the energy storage cabinet. The power distribution bus module does not occupy the internal space of the energy storage cabinet, which helps to save the internal space of the energy storage cabinet and also facilitates the maintenance of the power distribution bus module.

[0272] Figure 1 A schematic diagram of an energy storage system provided according to an embodiment of this application is shown; Figure 2 A schematic diagram of another energy storage system provided according to an embodiment of this application is shown; Figure 3 A schematic diagram of the structure of an energy storage system provided according to an embodiment of this application is shown.

[0273] In the embodiments of this application, please refer to Figures 1 to 3 For energy storage systems, depending on different site requirements, the energy storage cabinet 10 and the power distribution bus module 20 can have various different combinations. An energy storage system can include at least two energy storage cabinets 10 and at least one power distribution bus module 20. At least two energy storage cabinets 10 are connected in series horizontally or vertically. For example, in... Figure 1 In the example shown, an energy storage cabinet 10 is used in conjunction with a power distribution bus module 20, which is connected to the outer wall of the energy storage cabinet 10. For example, in... Figure 2 In the example shown, two energy storage cabinets 10 are connected in series to form a whole. The two energy storage cabinets 10 share a power distribution bus module 20, which is connected to the outer wall of one of the energy storage cabinets 10. For example, in... Figure 3 In the example described, eight energy storage cabinets 10 are used in conjunction with four power distribution busbar modules 20. The eight energy storage cabinets 10 are divided into two groups and arranged in two rows. The four power distribution busbar modules 20 are respectively connected to the outer walls of the two rows of energy storage cabinets 10.

[0274] In this embodiment, the power distribution bus module 20 can monitor and control the energy storage module 12 (see reference). Figure 10The power distribution bus module 20 can be designed using existing related structures. Of course, its structure can also be optimized, for example, by making it flat to facilitate connection of the power distribution bus module 20 to the outer wall of the energy storage cabinet 10.

[0275] The above-mentioned arrangement of energy storage systems makes the energy storage system more compact in structure, which is conducive to the layout of the energy storage system on the site and can improve the space utilization of the site while simplifying the layout.

[0276] In addition to the above, in other embodiments, the quantitative relationship between the energy storage cabinet 10 and the power distribution bus module 20 can be changed. For example, four energy storage cabinets 10 can be paired with two power distribution bus modules 20. It should be understood that the embodiments of this application do not limit the specific combination of the energy storage system. The combination of the energy storage cabinet 10 and the power distribution bus module 20 can be reasonably selected according to the specific site conditions and usage requirements.

[0277] Figure 4 A schematic diagram of the layout of an energy storage converter according to an embodiment of this application is shown;

[0278] Figure 5 A schematic diagram of the layout of another energy storage converter provided according to an embodiment of this application is shown.

[0279] In some embodiments, please refer to Figure 4 The energy storage system also includes an energy storage converter 30 (PCS). The energy storage converter 30 adopts an independent centralized design concept. The energy storage converter 30 is isolated from other parts of the energy storage system. Multiple power distribution bus modules 20 can share one energy storage converter 30. The energy storage converter 30 can be connected to each power distribution bus module 20 in the energy storage system.

[0280] In other embodiments, please refer to Figure 5 The energy storage system also includes an energy storage converter 30 (PCS), which adopts an external design concept and is integrated into the power distribution bus module 20. This integrated design of the energy storage converter 30 can optimize the layout of the energy storage system on site.

[0281] Figure 6 A front view of an exhaust structure provided according to an embodiment of this application is shown; Figure 7 A side view of an exhaust structure provided according to an embodiment of this application is shown; Figure 8 A top view of an exhaust structure provided according to an embodiment of this application is shown.

[0282] In some embodiments, please refer to Figures 6 to 8 The energy storage system also includes an exhaust structure 40, which includes a plurality of gas collection pipes 41 arranged at intervals along the height direction of the energy storage module 12 and an exhaust pipe 42 connected to each gas collection pipe 41. The gas collection pipes 41 are connected to the gas path of the energy storage module 12.

[0283] When the internal temperature of the energy storage module 12 rises due to charging and discharging cycles, the high-temperature gas can be discharged from the gas passage into the gas collection pipe 41 and then discharged from the energy storage system through the exhaust pipe 42, ensuring the internal temperature balance of the energy storage system and preventing the risk of thermal runaway.

[0284] As can be seen from the foregoing and the following embodiments, the energy storage module 12 in the embodiments of this application can be a battery pack 12b (see reference). Figure 53 It could also be battery cluster 12a (see reference). Figure 10 The battery pack 12b and battery cluster 12a can be composed of battery modules 700. The battery modules 700 can be arranged in layers along the height direction. Therefore, each layer of battery module 700 can be provided with a gas collection pipe 41. The high-temperature gas generated after each layer of battery module 700 heats up can be discharged into each gas collection pipe 41. Specifically, the gas can be discharged from the exhaust port of the battery cell into each gas collection pipe 41.

[0285] In some embodiments, please refer to Figures 6 to 8 The gas collection pipe 41 includes a first edge pipe 41a, a second edge pipe 41b arranged along the outer periphery of the energy storage module 12, and a main pipe 41c connecting the first edge pipe 41a and the second edge pipe 41b. High-temperature gas can be discharged into the first edge pipe 41a and / or the second edge pipe 41b, and then transmitted into the main pipe 41c. The exhaust pipe 42 is connected to the main pipe 41c, and the high-temperature gas can finally enter the exhaust pipe 42 and be discharged from the energy storage system.

[0286] In some embodiments, please refer to Figure 8 and Figure 9 There is a gap between the main pipe 41c and the energy storage module 12 to prevent secondary damage to the energy storage module 12 due to excessive temperature of the main pipe 41c.

[0287] In some embodiments, please refer to Figures 7 to 9 The exhaust structure 40 also includes a valve body 43, which is disposed on and connected to the exhaust pipe 42. By controlling the valve body 43 to open, high-temperature gas can be discharged from the exhaust pipe 42.

[0288] In some specific embodiments, please refer to Figures 7 to 9 The valve body 43 is located at the top of the exhaust pipe 42 to facilitate the smooth discharge of high-temperature gas from each gas collection pipe 41.

[0289] Figure 9 A schematic diagram of the structure of an energy storage cabinet according to an embodiment of this application is shown; Figure 10 An exploded view of an energy storage cabinet provided according to an embodiment of this application is shown.

[0290] In the embodiments of this application, please refer to Figure 9 and Figure 10 The energy storage cabinet 10 includes a cabinet body 11 and an energy storage module 12, with the energy storage module 12 disposed in the cabinet body 11.

[0291] The cabinet 11 adopts an enclosed structure that can be externally enclosed to the energy storage module 12. The cabinet 11 may include a shell 11d, and the shell 11d includes multiple module structures 11a, which are adapted to externally enclose the energy storage module 12.

[0292] Therefore, the cabinet includes a shell 11d, which includes multiple modular structures 11a and can surround the energy storage module 12 externally, thereby simplifying the structure of the energy storage cabinet 10 and improving the assembly flexibility of the energy storage cabinet 10.

[0293] In some embodiments, the cabinet 11 can be freely assembled and disassembled. The cabinet 11 can achieve a close fit with the energy storage module 12, which can improve the volumetric energy density of the energy storage cabinet 10. On the other hand, by surrounding the energy storage module 12 with the cabinet 11, the assembly difficulty of the energy storage cabinet 10 can be reduced, and the assembly process of the energy storage cabinet 10 can be simplified.

[0294] The cabinet 11 in this embodiment may include multiple modular structures 11a that can be assembled and disassembled with each other, and the multiple modular structures 11a can be connected in sequence and surround the outer periphery of the energy storage module 12.

[0295] The cabinet 11 adopts a modular design concept, including multiple module structures 11a. Different module structures 11a can cooperate with different parts of the energy storage module 12 to achieve a close fit between the cabinet 11 and the energy storage module 12, thereby improving the volumetric energy density of the energy storage cabinet 10. On the other hand, through the surrounding design of the energy storage module 12 by multiple module structures 11a, the assembly process of the energy storage cabinet 10 can be standardized and production line-oriented. The assembly of the energy storage cabinet 10 can be achieved according to the set assembly sequence, which can reduce the assembly difficulty of the energy storage cabinet 10 and simplify the assembly process.

[0296] It is understandable that the main design concept of this application lies in the modular design of the cabinet 11. By combining multiple modular structures 11a, the energy storage module 12 can be installed in an inside-out manner. Under this design concept, in order to improve the sealing performance of the energy storage cabinet 10, this application has conducted detailed research and design on each modular structure 11a, so that after the modular structures 11a are connected to form the cabinet 11, the cabinet 11 has excellent sealing performance.

[0297] As will be appreciated in conjunction with the following embodiments, the above-mentioned module structure 11a may include a base 100, a frame 200, a top cover structure 300, a front crossbeam frame 400, a rear crossbeam frame 500, an air duct cover 600, a wire harness cover 900, and other structures. The following embodiments will describe these structures in detail.

[0298] In some embodiments, please refer to Figure 9 and Figure 10 The module structure 11a includes a base 100, a frame 200, and a top cover structure 300.

[0299] The base 100 is the bottom structure of the cabinet 11. An installation area for installing the energy storage module 12 is provided on the base 100. The energy storage module 12 can be installed in the installation area. The base can limit the bottom of the energy storage module 12. When assembling the energy storage module 12, the energy storage module 12 can be installed on the base 100 first.

[0300] The frame 200 is connected to the outer periphery of the base 100. The frame 200 forms a circle around the periphery and can limit the energy storage module 12 in the circumferential direction.

[0301] The top cover structure 300 is connected to the top of the frame 200. The top cover structure 300 can limit the top of the energy storage module 12. The top cover structure 300, the frame 200, and the base 100 together form an energy storage cavity 11b for housing the energy storage module 12 (see reference). Figure 51 ).

[0302] Understandably, in the specific design, the base 100, the frame 200 and the top cover structure 300 can be closely matched with the energy storage module 12. In other words, the energy storage module 12 can make full use of the space of the energy storage cavity 11b, thereby increasing the volumetric energy density of the energy storage cabinet 10.

[0303] It is understood that the construction of the modular structure 11a, including the base 100, the surrounding frame 200, and the top cover structure 300, is for illustrative purposes only. In other embodiments, in order to form the cabinet 11 mentioned above, the modular structure 11a can also be constructed in other combinations. For example, the modular structure 11a may include the base 100, the first semi-enclosing frame, and the second semi-enclosing frame, etc. The first semi-enclosing frame and the second semi-enclosing frame can be connected to the base 100, and the first semi-enclosing frame and the second semi-enclosing frame can be connected to form a structure formed by the aforementioned surrounding frame 200 and the top cover structure 300.

[0304] In the above description, it can be combined with Figure 1 The coordinate system shown is used to understand the description of each orientation. The X direction is the length direction of the cabinet 11 or energy storage cabinet 10 (or other features that need to be referenced for orientation). The X direction defines the front, and the opposite direction defines the back. The Y direction is the width direction of the cabinet 11 or energy storage cabinet 10. The Y direction defines the left, and the opposite direction defines the right. The Z direction is the height or thickness direction of the cabinet 11 or energy storage cabinet 10. The Z direction defines the top and the top, and the opposite direction defines the bottom or the bottom.

[0305] In the following embodiments, it should be noted that, unless otherwise specified, the definitions of the length direction, width direction and thickness direction can be referred to the above. In other words, when describing the orientation for different objects, the orientation can also be understood according to the above definition, that is, these objects can be understood according to the above orientation definition of cabinet 11 or energy storage cabinet 10.

[0306] Figure 11 A schematic diagram of the structure of a base provided according to an embodiment of this application is shown.

[0307] In some embodiments, please refer to Figure 11 The base 100 includes a bottom frame 110, a bottom cover 120, and an energy storage installation assembly 130.

[0308] The bottom frame 110 is the skeleton part of the base 100, which mainly plays the role of bearing weight and ensuring strength. The bottom cover 120 is connected to the bottom frame 110. The bottom cover 120 can be made of a material with high structural strength and corrosion resistance, such as aluminum plate or stainless steel. The bottom cover 120 is connected to the bottom frame 110 so that the bottom frame 110 and the bottom cover 120 form an integral structure. This integral structure can form a bottom sealing surface at the bottom to limit and seal the bottom of the energy storage module 12.

[0309] The energy storage mounting assembly 130 is mounted on the bottom frame 110, and the energy storage module 12 is connected to the energy storage mounting assembly 130.

[0310] In some embodiments, please refer to Figure 11 The energy storage installation assembly 130 includes an installation block 131 and a grounding connection piece 132. The grounding connection piece 132 is disposed on the installation block 131, and the energy storage module 12 is connected to the grounding connection piece 132.

[0311] The mounting block 131 supports the energy storage module 12. The mounting block 131 needs to have high structural strength; therefore, it can be a solid structure or a hollow structure with internal reinforcing ribs. The grounding connection piece 132 forms a grounding terminal. After the energy storage module 12 is connected to the grounding connection piece 132, grounding is completed, ensuring the safe use of the energy storage cabinet 10.

[0312] To ensure reliable connection, at least two grounding connection points 1321 can be formed on the grounding connection piece 132. These at least two grounding connection points 1321 can be connected to the energy storage module 12. For example, as can be seen from the following embodiments, the grounding connection point 1321 can be connected to the module connection bracket 800.

[0313] In some embodiments, please refer to Figure 11 Multiple energy storage installation components 130 are arranged at intervals along the width direction on the bottom frame 110.

[0314] The arrangement of these multiple energy storage mounting components 130 can improve the connection reliability between the energy storage module 12 and the bottom frame 110. It is understood that the specific number of energy storage mounting components 130 can be set according to the specifications or dimensions of the energy storage module 12.

[0315] In some embodiments, please refer to Figure 11 The energy storage installation components 130 are located at both ends of the bottom frame 110 along its length.

[0316] The above-mentioned configuration of the energy storage mounting assembly 130 can ensure the connection between the energy storage module 12 and the bottom frame 110 at both ends of the length direction of the energy storage module 12. Combined with the connection relationship between the grounding connection point 1321 and the module connection bracket 800, it can improve the connection strength and facilitate the wiring of the energy storage module 12 (refer to the assembly between the module connection bracket 800 and the base 100 below).

[0317] In some embodiments, please refer to Figure 11 To enhance the connection strength between the energy storage module 12 and the bottom frame 110, the energy storage mounting assembly 130 also includes an intermediate connecting piece 133, which is located between the energy storage mounting assemblies 130 in the length direction.

[0318] The intermediate connecting piece 133 can be designed as a sheet structure, which can increase the contact area with the energy storage module 12, thereby improving the connection strength.

[0319] It is understandable that the specific arrangement of the intermediate connecting piece 133, such as the number of intermediate connecting pieces 133 and the positional relationship of each intermediate connecting piece 133, can be set according to requirements. For example, in Figure 11 In the example shown, the intermediate connecting pieces 133 are divided into two groups, each group including four intermediate connecting pieces 133 arranged at intervals along the width direction.

[0320] In some embodiments, please refer to Figure 11 The bottom frame 110 includes a bottom outer frame 111 and a bottom reinforcing beam 112, which is disposed inside the bottom outer frame 111.

[0321] The bottom outer frame 111 can strengthen the structural strength of the outer perimeter of the bottom frame 110, and the bottom reinforcing beam 112 can strengthen the structural strength of the interior of the bottom frame 110.

[0322] In some specific embodiments, please refer to Figure 11 The bottom reinforcing beam 112 includes a crossbeam 1121 and a longitudinal beam 1122. The crossbeam 1121 extends along the length of the bottom frame 110, and the longitudinal beam 1122 extends along the width of the bottom frame 110.

[0323] The crossbeam 1121 can strengthen the structural strength of the bottom frame 110 in the length direction, and the longitudinal beam 1122 can strengthen the structural strength of the bottom frame 110 in the width direction.

[0324] The number of the crossbeams 1121 and longitudinal beams 1122 is not limited; for example, in Figure 11 In the example shown, there are two crossbeams 1121 and two longitudinal beams 1122.

[0325] In some specific embodiments, the top of the crossbeam 1121 and the longitudinal beam 1122 can be designed with a chamfered structure, which can further improve the structural strength of the bottom frame 110.

[0326] In some specific embodiments, please refer to Figure 11 The bottom reinforcing beam 112 may also include a bottom inclined beam 1123, which is connected between the bottom outer frame 111 and the longitudinal beam 1122, and / or the bottom inclined beam 1123 is connected between the bottom outer frame 111 and the transverse beam 1121, and / or the bottom inclined beam 1123 is connected between the longitudinal beam 1122 and the transverse beam 1121.

[0327] It is understandable that the installation of the bottom inclined beam 1123 can further enhance the structural strength of the bottom frame 110, thereby improving the load-bearing capacity of the base 100.

[0328] In some specific embodiments, please refer to Figure 11 The crossbeam 1121 and the longitudinal beam 1122 intersect to form a "well" shaped structure, which can improve the overall structural strength of the base 100.

[0329] In some specific embodiments, at least one of the crossbeams, longitudinal beams, and bottom outer frame is made of at least one of C-shaped steel, H-shaped steel, or I-beams. By selecting steel with strong supporting properties, the supporting effect of the base 100 can be improved, and the height of the base 100 can be reduced to a certain extent while ensuring the same supporting effect.

[0330] In some embodiments, please refer to Figure 11 The bottom frame 110 also includes a grounding connector 113, which is disposed at the bottom of the bottom outer frame 111.

[0331] The function of the grounding connector 113 is to fix the base 100 on the ground. The grounding connector 113 can be designed as a sheet structure. Grounding mounting holes can be provided on the grounding connector 113. The base 100 can be fixed on the ground by fasteners such as bolts.

[0332] In some embodiments, please refer to Figure 11 The bottom frame 110 also includes a corner sealing flange 114, which is disposed at the corner of the bottom outer frame 111 and is used to form a sealed connection with the enclosure 200.

[0333] The corner sealing flange 114 can form a sealed connection with the frame 200. Here, the corner sealing flange 114 is set at the corner of the bottom outer frame 111, which can improve the connection strength between the frame 200 and the bottom outer frame 111, and also ensure the seal. It can prevent the bottom outer frame 111 from loosening from the frame 200 due to excessive force at the angle position.

[0334] The connecting surface of the corner sealing flange 114 faces the outside of the bottom outer frame 111. The corner sealing flange 114 can be set on both sides of the width direction of the bottom outer frame 111. The corner sealing flanges 114 located on both sides can be connected to the left frame 210 and the right frame 220 (the left frame 210 and the right frame 220 can be detailed in the following embodiments).

[0335] In some specific embodiments, please refer to Figure 11A limiting cavity 1141 is formed between the corner sealing flange 114 and the bottom surface of the bottom outer frame 111, or the corner sealing flange 114 itself can form a limiting cavity 1141. The limiting cavity 1141 can cooperate with the support member 2114 in the following embodiments, which aims to improve the stress situation between the frame 200 and the base 100 and enhance the connection strength between the frame 200 and the base 100. For details, please refer to the following description of the support member 2114.

[0336] In some embodiments, please refer to Figure 11 The bottom frame 110 also includes a raised sealing flange 115, which is raised on the bottom outer frame 111 and is used to form a sealed connection with the enclosure 200.

[0337] The raised sealing flange 115 can be located at the front end of the bottom outer frame 111 to form a sealing fit with the front frame 230 in the enclosure 200. As will be appreciated in the following embodiments, the front frame 230 has an openable structure and is frequently subjected to external impacts. The connection between the raised sealing flange 115 and the front frame 230 can mitigate the impact of external forces on the front frame 230, thereby improving the structural strength of the front frame 230 itself and the connection strength between the front frame 230 and other structures.

[0338] In some embodiments, please refer to Figure 11 The base 100 also includes a wiring assembly 140 for connecting the energy storage module 12 and the power distribution bus module 20.

[0339] The purpose of the wiring assembly 140 is to form a connection between the energy storage module 12 and the power distribution bus module 20. By setting the wiring assembly 140 on the base 100, the wiring in the energy storage cabinet 10 can be simplified, and the wiring can be avoided from occupying the internal space of the energy storage cabinet 10.

[0340] In some specific embodiments, please refer to Figure 11 The wiring assembly 140 includes a wire harness 141 and a wire harness cover 142. The wire harness 141 is disposed on the bottom cover 120, and the wire harness cover 142 is connected to the bottom frame 110 and covers the wire harness 141.

[0341] Specifically, the wire harness cover 142 can extend along the length direction, and both ends of the wire harness cover 142 can be connected to the bottom outer frame 111. The wire harness cover 142 can be located between two adjacent longitudinal beams 1122. The wire harness cover 142 is located above the wire harness 141 and can restrain the wire harness 141 to prevent the wire harness 141 from being arranged in a disorderly manner. The wire harness cover 142 can also fix the position of the wire harness 141 and also protect the wire harness 141.

[0342] In some embodiments, please refer to Figure 11 To connect with the enclosure 200, the bottom frame 110 has first bottom mounting holes 110a on both sides along its width direction, which can connect with the left frame 210 and the right frame 220. The bottom frame 110 also has second bottom mounting holes 110b on both sides along its length direction, which can connect with the front frame 230 and the rear frame 240. The left frame 210, right frame 220, front frame 230, and rear frame 240 together form the enclosure 200. The following embodiments will describe the various components of the enclosure 200 in detail.

[0343] In some embodiments, the module structure 11a further includes a wire harness cover 900, which is connected to both ends of the bottom frame 110 in the length direction. The wire harness 141 can be hidden inside the wire harness cover 900. In addition, the wire harness cover 900 can also wrap the grounding connector 113. The wire harness cover 900 can also achieve a sealed connection with the air duct cover 600.

[0344] Figure 12 A schematic diagram of the structure of a left frame (right frame) according to an embodiment of this application is shown; Figure 13 A structural schematic diagram of a left frame (right frame) from another angle provided according to an embodiment of this application is shown.

[0345] In some embodiments, please refer to Figure 10 , 12 and Figure 13 The left frame 210 and the right frame 220 are connected to the two sides of the bottom frame 110 in the width direction.

[0346] In some embodiments, the left frame 210 and the right frame 220 form a symmetrical structure, that is, the left frame 210 and the right frame 220 are constructed from the same structure.

[0347] To simplify the description, the following embodiments will be illustrated using the example of a symmetrical structure formed by the left frame 210 and the right frame 220. Of course, it is understood that in other embodiments, the left frame 210 and the right frame 220 may also be an asymmetrical structure.

[0348] In some embodiments, please refer to Figure 12 and Figure 13 The left frame 210 and the right frame 220 include a first side frame 211 and a first side cover 212.

[0349] The first side frame 211 is the skeleton structure of the left frame 210 and the right frame 220, which plays a role in ensuring the overall structural strength of the left frame 210 and the right frame 220. The first side cover 212 can be made of materials such as stainless steel and aluminum plate. The first side cover 212 is connected to the first side frame 211 so that the two can form an integral structure, so that the left frame 210 and the right frame 220 respectively form a left closed surface and a right closed surface, so as to limit and seal the left and right sides of the energy storage module 12.

[0350] In some embodiments, please refer to Figure 12 and Figure 13 The first side frame 211 includes a side outer frame 2111 and a side reinforcing beam 2112.

[0351] The side outer frame 2111 is used to ensure the structural strength at the edge of the first side frame 211, and the side reinforcing beam 2112 is used to enhance the internal structural strength of the first side frame 211.

[0352] In some specific embodiments, please refer to Figure 12 and Figure 13 The side outer frame 2111 includes a top beam 2111a, a bottom beam 2111b, and a side beam 2111c. The bottom beam 2111b is provided with a first connecting hole 2111b1 for connecting with the bottom frame 110. The position of the first connecting hole 2111b1 is opposite to the position of the aforementioned first bottom mounting hole 110a. By inserting bolts or other fasteners into the first connecting hole 2111b1 and the first bottom mounting hole 110a, the connection between the left frame 210, the right frame 220, and the base 100 can be achieved. The side beam 2111c connects the top beam 2111a and the bottom beam 2111b. The side beam 2111c is provided with a second connecting hole 2111c1, which enables connection with the front frame 230 and the rear frame 240.

[0353] In the above embodiment, the top beam 2111a, the bottom beam 2111b, and the side beam 2111c can form a rectangular frame structure, and the first side cover 212 can be connected to the frame structure.

[0354] In some embodiments, please refer to Figure 12 and Figure 13 The side reinforcing beam 2112 includes a main reinforcing beam 2112a, which is connected between the top beam 2111a and the bottom beam 2111b. The main reinforcing beam 2112a is arranged parallel to the side beam 2111c.

[0355] Based on the foregoing, it can be understood that the left frame 210 and the right frame 220 need to be enclosed on both sides of the width direction of the energy storage module 12. That is, the left frame 210 and the right frame 220 need to extend along the length direction, and their size is generally large. In order to ensure the structural strength of the left frame 210 and the right frame 220, a main reinforcing beam 2112a can be set between the side beams 2111c to achieve a uniform distribution of the structural strength of the left frame 210 and the right frame 220.

[0356] In some embodiments, please refer to Figure 12 and Figure 13 The side reinforcing beam 2112 may also include a side inclined beam 2112b, which is connected between the top beam 2111a and the side beam 2111c, and / or the side inclined beam 2112b is connected between the top beam 2111a and the main reinforcing beam 2112a, and / or the side inclined beam 2112b is connected between the bottom beam 2111b and the side beam 2111c, and / or the side wall 630 inclined beam is connected between the bottom beam 2111b and the main reinforcing beam 2112a.

[0357] The side inclined beam 2112b is used to strengthen the connection strength of each connection part of the first side frame 211, which can further improve the structural strength of the first side frame 211, thereby improving the structural strength of the left frame 210 and the right frame 220.

[0358] Figure 14 A frame structure diagram of a cabinet provided according to an embodiment of this application is shown; Figure 15 A schematic diagram showing the fit between the support and the limiting cavity is shown.

[0359] In some embodiments, please refer to Figure 12 and Figure 14 The bottom beam 2111b has a threading structure 2113 on its outer side, and the threading structure 2113 includes a threading positioning hole 2113a.

[0360] The wiring structure 2113 facilitates the wiring and bundling of the energy storage cabinet 10 during transportation. The bundling wire can pass through the wiring positioning hole 2113a, which can reduce the impact of the energy storage cabinet 10 during transportation.

[0361] In some specific embodiments, please refer to Figure 12 The threading structure 2113 includes a threading piece 2113b, which is protruded on the bottom beam 2111b, and a threading positioning hole 2113a is formed on the threading piece 2113b.

[0362] The threading pieces 2113b can be set in pairs, and multiple sets of threading structures 2113 can be set along the extension direction of the bottom beam 2111b. The threading pieces 2113b can improve the structural strength of the bottom beam 2111b. When the binding wire passes through the threading structure 2113, the binding wire passes through the bottom beam 2111b along the length direction, thereby realizing the overall positioning of the energy storage cabinet 10 and preventing the energy storage cabinet 10 from shaking or other phenomena.

[0363] Please refer to the reference. Figure 12 and Figure 14 The top of the side beam 2111c is equipped with a lifting lug 2111c2 for lifting the energy storage cabinet 10.

[0364] The lifting lug 2111c2 can be welded to the top of the side beam 2111c. During transportation or on-site installation of the energy storage cabinet 10, the lifting lug 2111c2 can be used by lifting machinery to lift the energy storage cabinet 10.

[0365] In some embodiments, please refer to Figure 12 and Figures 14 to 15 The bottom of the side beam 2111c is provided with a support member 2114, and the bottom of the bottom frame 110 forms a limiting cavity 1141. As mentioned above, the limiting cavity 1141 can be formed between the corner sealing flange 114 and the bottom outer frame 111, or it can be formed on the corner sealing flange 114. The support member 2114 can be inserted into the limiting cavity 1141.

[0366] During the lifting of the energy storage cabinet 10, the frame 200 and the base 100 are subjected to shear force along the Z direction. This shear force acts on the bolts connecting the bottom beam 2111b and the bottom outer frame 111, and the bolts are at risk of breaking under this shear force. To eliminate this risk, it is necessary to improve the stress distribution between the bottom beam 2111b and the bottom outer frame 111. Specifically, by forming a limiting cavity 1141 on the bottom frame 110 and setting a support member 2114 at the bottom of the side beam 2111c, the support member 2114 can be inserted into the limiting cavity 1141 during assembly. Thus, after the energy storage cabinet 10 is lifted, the support member 2114 can share part of the weight of the energy storage cabinet 10, which can prevent damage to the bolts due to excessive shear force and ensure the safety of lifting. Based on this, and by combining the connection between the first connecting hole 2111b1 and the first bottom mounting hole 110a, the overall connection strength of the energy storage cabinet 10 can be guaranteed, and the deformation of the energy storage cabinet 10 during lifting can be reduced.

[0367] In some embodiments, please refer to Figure 12 A support block 2115 is provided on the side beam 2111c to support the power distribution return module.

[0368] The power distribution combiner module 20 in the energy storage system can be installed on the support block 2115, and the power distribution return module can be suspended on the support block 2115 as a whole, which can simplify the installation of the power distribution combiner module 20.

[0369] In some embodiments, please refer to Figure 12 The side frame 2111 also includes a top sealing plate 2111d, which is connected between the side beams 2111c and located on top of the side beams 2111c. The top sealing plate 2111d is provided with a third connecting hole 2111d1.

[0370] The top cover plate 2111d can be connected to the side beam 2111c by means of threaded connection or welding. The third connecting hole 2111d1 on the top cover plate 2111d can be connected to the top cover structure 300.

[0371] Figure 16 A schematic diagram of a front frame provided according to an embodiment of this application is shown.

[0372] In some embodiments, please refer to Figure 16 The frame 200 also includes a front frame 230, which is connected to one side of the bottom frame 110 along its length.

[0373] As mentioned above, the length direction of the bottom frame 110 is the X direction, and the bottom frame 110 forms a front end and a rear end in the length direction, with the front frame 230 connected to the front end of the bottom frame 110.

[0374] In some embodiments, please refer to Figure 16 The front frame 230 includes a flush end 230a and a non-flush end 230b. The flush end 230a is located at the top of the front frame 230, and the non-flush end 230b is located at the bottom of the front frame 230. The front frame 230 has a notch 230c formed on the non-flush end 230b that can mate with the raised sealing flange 115. The edge of the notch 230c can connect with the edge of the raised sealing flange 115.

[0375] In some embodiments, please refer to Figure 16 The front frame 230 includes a second side frame 231 and a second side cover 232.

[0376] The second side frame 231 is the skeleton structure of the front frame 230. The second side frame 231 can ensure the structural strength of the front frame 230. The second side cover 232 can be made of materials such as stainless steel and aluminum plate. The second side cover 232 is connected to the second side frame 231 so that the two can form an integral structure, so that the front frame 230 forms a front closed surface to limit and seal the front side of the energy storage module 12.

[0377] In some embodiments, please refer to Figure 16 The second side frame 231 has multiple windows 231a, for example, in Figure 16 In the example shown, the second side frame 231 has three windows 231a, which facilitate the maintenance of the relevant structures inside the energy storage cabinet 10.

[0378] In some embodiments, please refer to Figure 16 The second side cover 232 includes multiple sub-covers 2321, each sub-cover 2321 covering a window 231a.

[0379] By covering the window 231a with the subshell 2321, the subshell 2321 can be associated with the relevant structure. The relevant structure can be maintained by opening the corresponding subshell 2321.

[0380] To enable the subshell 2321 to be opened and closed, in some embodiments, please refer to... Figure 16 The front frame 230 also includes a flip component 233, which is disposed on the second side frame 231. The sub-shell 2321 is connected to the flip component 233. The flip component 233 is used to drive the sub-shell 2321 to open or close the window 231a.

[0381] It is understood that the flipping component 233 can be a component that swings within a certain angle range. By connecting the sub-shell 2321 to the flipping component 233, the swinging of the sub-shell 2321 can be achieved, thereby enabling the sub-shell to open or close the window 231a.

[0382] In some specific embodiments, the flipping component 233 can be a hinge, a torsion spring, or other similar structure. When a hinge is used, a self-closing hinge can be selected, which makes the sub-shell 2321 tend to close in a free state, thus preventing improper opening and closing of the sub-shell 2321 and protecting the relevant internal structures of the energy storage cabinet 10.

[0383] In some embodiments, please refer to Figure 16 The sub-shell 2321 is provided with a handle 2321a to facilitate opening the sub-shell 2321.

[0384] In some embodiments, please refer to Figure 16The sub-shell 2321 is equipped with a front frame air inlet valve 2321b and a front frame exhaust valve 2321c. The front frame air inlet valve 2321b is located below the front frame exhaust valve 2321c. Outside air can enter the energy storage cabinet 10 through the front frame air inlet valve 2321b, and the gas in the energy storage cabinet 10 can be discharged from the energy storage cabinet 10 through the front frame exhaust valve 2321c. The setting of the front frame air inlet valve 2321b and the front frame exhaust valve 2321c can ensure the airtight environment inside the energy storage cabinet 10, which is beneficial to improving the safety and performance of the energy storage cabinet 10.

[0385] Figure 17 A side view of a front frame provided according to an embodiment of this application is shown; Figure 18 A schematic diagram of the structure of a first sealing connector provided according to an embodiment of this application is shown.

[0386] In some embodiments, please refer to Figure 16 and Figure 17 The edge of the sub-shell 2321 is provided with a first seal 234, which is used to form a seal between the sub-shell 2321 and the second side frame 231.

[0387] The first seal 234 can be made of materials such as rubber. The first seal 234 can be set on the edge of the sub-shell 2321 with an edge-wrapping structure, so that when the sub-shell 2321 closes the window 231a, the sub-shell 2321 can form a seal with the second side frame 231.

[0388] In some embodiments, please refer to Figures 16 to 18 The second side frame 231 is provided with a plurality of first sealing connectors 235 along its circumference, which are used to connect the second side frame 231 to the left frame 210 and the right frame 220.

[0389] Reference Figure 16 The second side frame 231 includes a front top edge 231b, a front side edge 231c, and a front bottom edge 231d. The front side edge 231c needs to be connected to the left frame 210 and the right frame 220. Specifically, the first sealing connector 235 on the front side edge 231c can be connected to the second connecting hole 2111c1 on the left frame 210 and the right frame 220. The front bottom edge 231d needs to be connected to the base 100. Specifically, the first sealing connector 235 on the front bottom edge 231d can be connected to the second bottom mounting hole 110b on the bottom outer frame 111 and the aforementioned raised sealing flange 115. The front top edge 231b is mainly used to achieve the connection with the top cover structure 300.

[0390] In some embodiments, please refer to Figure 17 and Figure 18The first sealing connector 235 includes a force-bearing part 2351, a connecting part 2352, and a sealing gasket 2353.

[0391] The force-bearing part 2351 can accept the force applied by tools such as wrenches, so that the first sealing connector 235 can be screwed into the second side frame 231. The connecting part 2352 is connected to the force-bearing part 2351 and can pass through the second side frame 231. The force-bearing part 2351 has a flange 2354 protruding from the connecting part 2352. The sealing gasket 2353 is provided on the side of the flange 2354 facing the connecting part 2352.

[0392] After the first sealing connector 235 is assembled to the second side frame 231, the sealing gasket 2353 is located between the flange 2354 and the second side frame 231. Based on the function of the sealing gasket 2353, the sealing performance between the first sealing connector 235 and the second side frame 231 can be improved.

[0393] In some embodiments, please refer to Figure 17 A second seal 236 is provided on the side of the second side frame 231 facing the left frame 210, and the connecting part 2352 can pass through the second side frame 231 and the second seal 236.

[0394] By placing the second seal 236 on the side of the second side frame 231 facing the left frame 210, after the front frame 230 is installed on the left frame 210 and the right frame 220, the second seal 236 is located between the second side frame 231 and the left frame 210 and between the second side frame 231 and the right frame 220, thereby improving the sealing performance between the front frame 230 and the left frame 210 and between the front frame 230 and the right frame 220.

[0395] The sealing gasket 2353 and the second sealing element 236 can be made of a material with sealing properties, such as rubber. The overall size of the sealing gasket 2353 can be larger than or slightly smaller than the size of the flange. The specific structure of the sealing gasket 2353 can be set according to the shape of the flange. For example, when the flange is circular, the sealing gasket 2353 can also be designed to be circular. The second sealing element 236 can be attached to the surface of the second side frame 231, or the second sealing element 236 can be embedded in the second side frame 231 and partially exposed to contact the left frame 210 and the right frame 220.

[0396] Figure 19 A schematic diagram of a rear frame provided according to an embodiment of this application is shown.

[0397] In some embodiments, the frame 200 further includes a rear frame 240 connected to the other side of the bottom frame 110 in the longitudinal direction.

[0398] As mentioned above, the rear frame 240 is connected to the rear end of the bottom frame 110.

[0399] In some embodiments, please refer to Figure 19 The rear frame 240 includes a third side frame 241 and a third side cover 242.

[0400] The third side frame 241 is the skeleton structure of the front frame 230. The third side frame 241 can ensure the structural strength of the rear frame 240. The third side cover 242 can be made of materials such as stainless steel and aluminum plate. The third side cover 242 is connected to the third side frame 241 so that the two can form an integral structure, so that the rear frame 240 forms a rear closed surface to limit and seal the rear side of the energy storage module 12.

[0401] Thus, in conjunction with the foregoing, the base 100 can form a bottom closed surface, the left frame 210 can form a left closed surface, the right frame 220 can form a right closed surface, the front frame 230 can form a front closed surface, and the rear frame 240 can form a rear closed surface. By combining the bottom closed surface, the left closed surface, the right closed surface, the front closed surface, and the rear closed surface, the bottom, left side, right side, front side, and right side of the energy storage module 12 can be limited and sealed. Based on this, combined with the top cover structure 300, the cabinet 11 can surround the energy storage module 12.

[0402] In some embodiments, please refer to Figure 19 The third side frame 241 is provided with a plurality of second sealing connectors 243 along its circumference for linking the third side frame 241 to the left frame 210 and the right frame 220.

[0403] The third side frame 241 includes a rear top edge 241a, a rear side edge 241b, and a rear bottom edge 241c. The rear side edge 241b needs to be connected to the left frame 210 and the right frame 220. Specifically, the second sealing connector 243 on the rear side edge 241b can be connected to the second connecting hole 2111c1 on the left frame 210 and the right frame 220. The rear bottom edge 241c needs to be connected to the base 100. Specifically, the second sealing connector 243 on the rear bottom edge 241c can be connected to the second bottom mounting hole 110b on the bottom outer frame 111. The front top edge 231b is mainly used to achieve the connection with the top cover structure 300.

[0404] The second sealing connector 243 can adopt the same structure as the first sealing connector 235 mentioned above, and will not be described again. Similarly, in order to improve the sealing performance between the rear frame 240 and the left frame 210 and the right frame 220, a second sealing connector 236 can be provided on the side of the rear frame 240 facing the left frame 210.

[0405] Figure 20 A schematic diagram of a front frame connection according to an embodiment of this application is shown; Figure 21 It shows Figure 20 A magnified view of part A in the middle.

[0406] In some embodiments, please refer to Figure 10 and Figures 20 to 21 The module structure 11a also includes a front crossbeam frame 400 and a rear crossbeam frame 500. The front crossbeam frame 400 is connected to the left frame 210 and the right frame 220 and is located above the front frame 230. The rear crossbeam frame 500 is connected to the left frame 210 and the right frame 220 and is located above the rear frame 240.

[0407] The front crossbeam frame 400 and the rear crossbeam frame 500 can be connected to the top sealing plate 2111d in the aforementioned left frame 210 and right frame 220, so that the front crossbeam frame 400, the rear crossbeam frame 500, and the top sealing plate 2111d can form the installation area 11c of the top cover structure 300 (see reference). Figure 51 The top cover structure 300 can be installed within the installation area 11c.

[0408] The front crossbeam frame 400 can form a sealed connection with the front top edge 231b of the front frame 230. The front crossbeam frame 400 is provided with a front crossbeam mounting hole 401. The rear crossbeam frame 500 can form a sealed connection with the rear top edge 241a of the rear frame 240. The rear crossbeam frame 500 is provided with a rear crossbeam mounting hole 501. Based on the setting of the third mounting hole 2111d1, the front crossbeam mounting hole 401 and the rear crossbeam mounting hole 501, the top cover structure 300 can be installed in the installation area 11c.

[0409] Figure 22 A schematic diagram of a top cover structure provided according to an embodiment of this application is shown; Figure 23 A schematic diagram of the cold air circulation of an energy storage cabinet provided according to an embodiment of this application is shown; Figure 24 Another cold air circulation diagram of an energy storage cabinet provided according to an embodiment of this application is shown.

[0410] In some embodiments, please refer to Figure 22 The top cover structure 300 includes a connecting top cover 310 and an air-cooling structure 320.

[0411] The connecting top cover 310 is the shell structure of the top cover structure 300, ensuring the structural strength of the top cover structure 300. The connecting top cover 310 is connected to the top of the frame 200; specifically, the connecting top cover 310 can be installed within the aforementioned installation area 11c. The air-cooling structure 320 is connected to the connecting top cover 310. The air-cooling structure 320 is used to generate cold air and deliver it to the energy storage chamber 11b (see reference). Figure 14 ).

[0412] For the energy storage cabinet 10, the energy storage module 12 is confined within the energy storage cavity 11b. To prevent the energy storage module 12 from overheating or even experiencing thermal runaway, it is necessary to dissipate heat from the energy storage module 12 to control its temperature. The top cover structure 300, through the air-cooling structure 320, can dissipate heat from the energy storage module 12. Integrating this air-cooling method into the top cover structure 300 makes the energy storage cabinet 10 more compact in structure, which is beneficial for improving the volumetric energy density of the energy storage cabinet 10.

[0413] In some embodiments, please refer to Figure 22 The top cover 310 has an internal cavity (not shown in the figure) and an air vent (not shown in the figure) communicating with the internal cavity. The air-cooled structure 320 includes a cooling structure 321 disposed in the internal cavity. The cold air generated by the cooling structure 321 can be transmitted to the air vent and discharged from the top cover 310.

[0414] The air-cooled structure 320 also includes a cold air housing 322, which is connected to the top cover. The cold air housing 322 can form an air duct, which is connected to the air outlet, and cold air can be delivered from the air outlet into the air duct.

[0415] It is understandable that the design of the air vents and ducts aims to create a cold airflow within the top cover structure 300 and the energy storage cabinet 10. This cold airflow needs to enter the energy storage cabinet 10 to dissipate heat from the energy storage module 12. Therefore, as will be seen in the following embodiments, structures such as an air duct cover 600 are also provided in the energy storage cabinet 10 to facilitate the flow of cold air.

[0416] In some embodiments, please refer to Figure 22 The air outlet includes an air outlet and a return air outlet 310a, and the air duct includes an air outlet duct 322a and a return air duct 322b. The air outlet duct 322a is connected to the air outlet, and the return air duct 322b is connected to the return air outlet 310a.

[0417] Understandably, when the cooling structure 321 generates cold air, the cold air can enter the air outlet duct 322a from the air outlet, and then enter the energy storage cabinet 10. After flowing in the energy storage cabinet 10, the cold air then passes through the return air duct 322b and the return air outlet 310a in sequence. The above flow of cold air can form the above-mentioned cold air flow. This cold air flow can circulate in the energy storage cabinet 10, which can improve the heat dissipation effect on the energy storage module 12 and ensure the temperature consistency of the energy storage module 12.

[0418] In some specific embodiments, please refer to Figure 22 The return air vent 310a is located between the two air outlets, and the air outlet duct 322a is located between the two return air ducts 322b.

[0419] Specifically, the two air outlets are spaced apart along the width direction, and the return air outlet 310a is located between the two air outlets. This allows the cold airflow to fill the energy storage module 12 along the width direction, ensuring the temperature uniformity of the energy storage module 12 in the width direction.

[0420] In some specific embodiments, please refer to Figure 22 The air vents are located at both ends of the length direction of the connecting top cover 310, and the air ducts are located at both ends of the length direction of the connecting top cover 310.

[0421] This allows cold air to enter the energy storage cabinet 10 from the front and rear ends respectively, and form a circulation at the front and rear ends of the energy storage module 12, thereby ensuring the temperature uniformity of the energy storage module 12 along its length.

[0422] In some specific embodiments, please refer to Figure 22 The top cover 310 is also provided with return air vents 310a on both sides of its width direction. The return air vents 310a and the aforementioned return air vents 310a provided at the front and rear ends of the top cover 310 can form a better heat dissipation effect for the energy storage module 12.

[0423] In some embodiments, please refer to the reference Figure 23 and Figure 24 The air outlet and part of the return air inlet 310a are located at both ends of the length direction of the top cover 310, and the other part of the return air inlet 310a is located on both sides of the width direction of the top cover 310. Cold air enters the energy storage cavity from the air outlet and flows in opposite directions along the length of the top cover 310 to form convection. The cold air after convection flows to the return air inlet 310a.

[0424] Please refer to the reference. Figure 23 and Figure 24 The cold air in the top cover structure 300 can enter the energy storage cabinet 10 through the air outlet duct 322a. For simplicity, the front end of the energy storage cabinet 10 will be used as an example. First, you can refer to... Figure 23Cold air enters the energy storage cabinet 10 from the two front-end air outlet ducts 322a along the U-direction and is then conveyed downwards within the energy storage cabinet 10, followed by reference. Figure 24 During the downward transmission of cold air, the cold air is then transmitted from front to back into the energy storage module 12 along the V direction. During the transmission process, part of the cold air is transmitted upward along the W1 direction and enters the return air duct 322b, while the other part of the cold air enters the return air inlets 310a located on both sides of the top cover 310 along the W2 direction, thereby completing the circulation of cold air in the top cover structure 300 and the energy storage cabinet 10. This can cool the energy storage module 12 and ensure the overall temperature uniformity of the energy storage cabinet 10.

[0425] The cold air circulation at the rear end of the energy storage cabinet 10 can be referred to the above and will not be repeated here. It can be understood that by setting the position and number of the air outlet and return air outlet 310a as described above, the cold air circulation in the entire energy storage cabinet 10 can be fully interactive with the energy storage module 12, thereby improving the heat dissipation effect of the energy storage module 12 and ensuring the temperature uniformity of the energy storage module 12.

[0426] In some embodiments, please refer to Figure 22 The top cover 310 includes a top cover body 311 and a partition 312. The air outlet can be located at both ends of the length direction of the top cover body 311, and the return air outlet 310a can be located at both ends of the length direction of the top cover body 311 or on both sides of the width direction of the top cover body 311. The partition 312 is connected to the top cover body 311 and forms an internal cavity.

[0427] The design of the connecting top cover 310, which includes a top cover body 311 and a partition 312, simplifies the production and assembly of the connecting top cover 310. The combination of the top cover body 311 and the partition 312 forms an internal cavity, which facilitates the installation of the cooling structure 321 within the connecting top cover 310.

[0428] The refrigeration structure 321 in this embodiment is a structure capable of generating cold air. The refrigeration structure 321 can be a refrigeration fan or an air conditioning system.

[0429] Figure 25 A cross-sectional view of a top cover structure provided according to an embodiment of this application is shown; Figure 26 It shows Figure 25 A magnified view of part B in the image.

[0430] In some embodiments, please refer to Figure 25For the return air inlets 310a located on both sides of the width direction of the connecting top cover 310, a third sealing element 330 can be provided around the return air inlet 310a. The third sealing element 330 can achieve sealed communication between the return air inlet 310a and related structures. For example, it can achieve sealed communication between the return air inlet 310a and the frame 200, so that cold air can enter the return air inlet 310a, and at the same time improve the sealing performance between the frame 200 and the return air inlet 310a.

[0431] The third seal 330 can be made of materials such as rubber, and the third seal 330 can be set around the periphery of the return air inlet 310a in the form of an edge wrapping.

[0432] In some embodiments, please refer to Figure 22 and Figure 25 The top cover structure 300 also includes a waterproof cover 340, which has an inclined guide surface 341. The waterproof cover 340 is circumferentially connected to the outer periphery of the top cover 310, so that rainwater can be gathered at the waterproof cover 340 and flow out of the energy storage cabinet 10 through the guide surface 341 of the waterproof cover 340.

[0433] The aforementioned cold air housing 322 can be housed inside the waterproof cover 340. The waterproof cover 340 can protect the cold air housing 322 and also serve as a heat insulation structure to prevent external high temperatures from affecting the cold air housing 322 and thus impacting the cold air circulation.

[0434] Furthermore, heat insulation material can be placed between the cold air housing 322 and the waterproof cover 340, thereby optimizing the cold air circulation effect.

[0435] In some embodiments, please refer to Figure 26 A flow channel 3121 is formed on the partition 312, which can guide water and make it difficult for water to accumulate in the top cover structure 300.

[0436] Figure 27 A schematic diagram showing the connection between a top cover structure and a frame according to an embodiment of this application is shown.

[0437] In some embodiments, please refer to Figure 22 and Figure 27 Top cover connecting assemblies 350 are provided on both sides of the top cover body 311 in the width direction for connecting the top cover body 311 to the frame 200, specifically for connecting the top cover to the aforementioned third connecting hole 2111d1.

[0438] In some specific embodiments, please refer to Figure 22 and Figure 27The top cover connection assembly 350 includes a top cover connection block 351 and a top cover fastener 352, which can pass through the top cover connection block 351 and the frame 200 to realize the connection between the top cover structure 300 and the frame 200.

[0439] In conjunction with the foregoing, the top cover structure 300 can also be connected to the aforementioned front crossbeam mounting hole 401 and rear crossbeam mounting hole 501. For this purpose, the connection between the top cover structure 300 and the front crossbeam frame 400 and the rear crossbeam frame 500 can be completed by using the first sealing connector 235 mentioned above.

[0440] Figure 28 This diagram illustrates the connection between a duct cover and an energy storage module according to an embodiment of this application. Figure 29 This diagram illustrates a structural schematic of an energy storage cabinet with its front frame removed, according to an embodiment of this application. Figure 30 It shows Figure 29 A magnified view of a portion of C in the image; Figure 31 A schematic diagram of a connection between a top cover and an air duct cover provided according to an embodiment of this application is shown.

[0441] Based on the preceding text and with reference to Figures 28 to 30 The module structure 11a may also include a duct cover 600, which is connected to the energy storage module 12 and forms an internal duct 601 with the energy storage module 12 (see reference). Figure 24 The internal air duct 601 is connected to the outlet air duct 322a.

[0442] The cold air in the top cover structure 300 can enter the internal air duct 601 from the air outlet duct 322a and be transmitted in the energy storage cabinet 10 along the U direction.

[0443] The design of the air duct cover 600 can rationally plan the direction of the cold air flow, so that the cold air flow can be evenly distributed to various positions of the energy storage module 12.

[0444] In some embodiments, please refer to Figure 28 A gap is formed between the duct cover 600 and the energy storage module 12, and the gap is filled with sealant 602.

[0445] The sealant 602 creates a seal between the duct cover 600 and the energy storage module 12, allowing cold air to be delivered only along the internal duct 601.

[0446] In some embodiments, please refer to Figure 29 and Figure 30 The duct cover 600 has a flange 610, which is connected to the energy storage module 12.

[0447] Specifically, you can refer to the following: Figure 10 The duct cover 600 is a semi-open shell structure. The duct cover 600 includes a bottom wall 620 and two side walls 630 connected to both sides of the bottom wall 620. A flange 610 can be formed on the side of the side wall 630 facing the energy storage module 12. Based on the setting of the flange 610, the connection reliability between the duct cover 600 and the energy storage module 12 can be improved. The aforementioned gap can be formed between the side wall 630 and the energy storage module 12.

[0448] As can be seen from the following embodiments, the connection between the duct cover 600 and the energy storage module 12 can be achieved by means of the module connection bracket 800 in the energy storage module 12, that is, the duct cover 600 can be connected to the module connection bracket 800 of the energy storage module 12.

[0449] In some embodiments, please refer to Figure 31 A fourth sealing element 640 is provided between the air duct cover 600 and the connecting top cover 310, which enables a sealed connection between the air outlet duct 322a and the internal air duct 601.

[0450] As described above, the connecting top cover 310 may include a top cover body 311 and a partition 312. The partition 312 is located between the top cover body 311 and the air duct cover 600. By providing a fourth sealing element 640 between the partition 312 and the air duct cover 600, a sealed connection between the partition 312 and the air duct cover 600 can be achieved.

[0451] Of course, in some embodiments, a fourth sealing element 640 may be provided between the top cover body 311 and the partition 312 to achieve a sealed connection between the top cover body 311 and the partition 312.

[0452] Figure 32 A top view of the cabinet structure provided according to an embodiment of this application, with the top cover removed, is shown.

[0453] In some embodiments, please refer to Figure 32 The frame 200 and the base 100 are connected in a staggered manner. This staggered connection means that the frame 200 and the base 100 are not connected in an aligned manner, but are staggered in the length and width directions. This makes it easier to inject sealant 602 between the frame 200 and the base 100, which helps to form a seal between the base 100 and the frame 200 and prevents moisture and other substances from entering the energy storage cabinet 10.

[0454] Figure 33 A schematic diagram showing the connection between a heat insulation device and a housing according to an embodiment of this application is shown; Figure 34A side view of a heat insulation device and housing provided according to an embodiment of this application is shown; Figure 35 A cross-sectional view of a heat insulation device provided according to an embodiment of this application is shown.

[0455] In some embodiments, please refer to Figures 36 to 37 A heat insulation device 60 is provided on the outer side of the housing 11d, which is used to form an air duct that communicates with the outside.

[0456] The heat insulation device 60 is installed on the outer side of the shell 11d. By interacting with the outside airflow, it can cool the shell 11d, thereby enabling external control of the energy storage cabinet temperature.

[0457] In some embodiments, please refer to Figures 36 to 37 The heat insulation device 60 includes a first heat insulation element 61 and a second heat insulation element 62. The first heat insulation element 61 is spaced apart from the outer wall of the housing 11d to form a heat insulation cavity 60a. The second heat insulation element 62 is located inside the heat insulation cavity 60a and is connected between the outer wall and the first heat insulation element 61. When the second heat insulation element 62 melts, an air duct communicating with the outside is formed at the heat insulation cavity 60a.

[0458] Understandably, when the temperature of the energy storage cabinet is within a reasonable range, the second heat insulation component 62 is connected between the shell 11d and the first heat insulation component 61. At this time, the heat insulation cavity 60a is in a closed state. As the temperature of the energy storage cabinet increases, the second heat insulation component 62 gradually melts, and the heat insulation cavity 60a will connect with the outside, thereby forming air convection to achieve the purpose of cooling the shell 11d.

[0459] In some embodiments, the second heat insulation member 62 is a low melting point material. When the temperature of the second heat insulation member 62 is greater than or equal to a preset temperature, the second heat insulation member 62 melts to form an air duct communicating with the outside of the first heat insulation member 61 at the heat insulation cavity 60a.

[0460] It should be noted that the preset temperature here refers to the normal operating temperature of the energy storage cabinet. When the temperature rise of the energy storage cabinet exceeds this normal operating temperature, the energy storage cabinet can be cooled down by the above-mentioned configuration of the heat insulation device 60.

[0461] In some embodiments, please refer to Figure 37 The heat insulation device 60 also includes a third heat insulation element 63, which is connected to the housing 11d and is located on both sides of the housing 11d.

[0462] The third heat insulation element 63 is located on the inner side of the shell, and it can work together with the first heat insulation element to insulate the shell 11d. The combination of inner and outer heat insulation structures can improve the cooling effect of the heat insulation device 60 on the shell 11d.

[0463] In some embodiments, please refer to Figure 37 The first heat insulation element 61 has a heat-insulating inner cavity 611 for accommodating the phase change material.

[0464] Based on the configuration of the heat-insulating cavity 611, the first heat-insulating element 61 has the function of temperature regulation. The heat-insulating cavity 611 can be combined with the second heat-insulating element 62. For example, before the second heat-insulating element 62 breaks, a portion of the phase change material in the heat-insulating cavity 611 can undergo a phase change first, thereby pre-cooling the shell 11d. As the temperature further increases, the second heat-insulating element 62 can break, thereby introducing air convection and further improving the cooling effect.

[0465] The second heat insulation component 62 can form a stepped cooling effect with the heat insulation cavity 611, which can be well adapted to the heat generation of the energy storage cabinet under different conditions.

[0466] It should be noted that the phase change material can be one or a combination of multiple of the following: paraffin wax with a carbon number of 40-60, fatty acids, polyethylene glycol, fatty alcohols, lauric acid-palmitic acid eutectics, molten salt complexes, or other phase change materials. There are no restrictions on this, and the material can be selected according to the actual application requirements.

[0467] The above embodiments provide a detailed description of each component of the cabinet 11. As can be seen from the above embodiments, the cabinet 11 in this application embodiment can be formed by connecting various modular structures 11a. The cabinet 11 can surround the energy storage module 12, thereby increasing the volumetric energy density of the energy storage cabinet 10. As mentioned above, the energy storage module 12 in this application embodiment can be a battery pack 12b or a battery cluster 12a. The following embodiments will describe the specific structure of the battery cluster 12a in detail.

[0468] Figure 36 A schematic diagram of a battery cluster according to an embodiment of this application is shown; Figure 37 A schematic diagram of the front end of a battery cluster according to an embodiment of this application is shown; Figure 38 It shows Figure 37 A magnified view of a portion of D in the image.

[0469] In some embodiments, please refer to Figure 36 The battery cluster 12a includes overlapping battery components 700 and a module connection bracket 800. The module connection bracket 800 is disposed at the end of the battery components 700 and is used to connect two adjacent battery components 700.

[0470] Reference Figures 36 to 38The battery components 700 are stacked along the Z direction, and each layer of battery components 700 is in contact with each other through their respective module connection brackets 800. It can be understood that the connection between the battery components 700 of adjacent layers can be achieved by fixing the module connection brackets 800 of adjacent layers. This connection method can avoid direct connection between battery components 700 on the one hand, and on the other hand, it is conducive to forming micro gaps in the battery cluster 12a, which facilitates the flow of cold air in the battery cluster 12a.

[0471] In some embodiments, please refer to Figure 38 The module connection bracket 800 includes a connection end 810, and the connection ends 810 of two adjacent module connection brackets 800 can form a fixed connection.

[0472] Specifically, threaded holes can be provided on the connecting end 810, and the threaded holes on the two connecting ends 810 correspond to each other in position, so that the connection between the module connecting brackets 800 can be achieved by passing fasteners such as bolts through the threaded holes.

[0473] In some embodiments, please refer to Figure 38 The module connection bracket 800 also includes a support portion 820, which extends along the thickness direction of the battery assembly 700, and the connection end 810 is connected to both ends of the support portion 820.

[0474] The support portion 820 can be connected to the battery assembly 700. For example, the support portion 820 can be connected to the end plate of the battery assembly 700. The support portion 820 extends along the thickness direction of the battery assembly 700 to improve the structural strength of the battery assembly 700.

[0475] The connecting end 810 is connected to the upper and lower ends of the support part 820, so that the module connecting bracket 800 can be connected to another module connecting bracket 800 at both its upper and lower ends.

[0476] In some specific embodiments, please refer to Figure 38 The connection end 810 includes a first connection end 811 and a second connection end 812. The dimension of the first connection end 811 along the width direction of the battery assembly 700 is greater than the dimension of the second connection end 812 along the width direction of the battery assembly 700.

[0477] A groove 8111 can be formed on the first connecting end 811, and the second connecting end 812 can be accommodated in the groove 8111. Through the matching design of the second connecting end 812 and the groove 8111, the assembly between two adjacent battery modules 700 can be positioned, and misalignment between battery modules 700 of different layers can be prevented.

[0478] In some embodiments, the connecting end 810 of the module connecting bracket 800 extends from the thickness direction of the battery assembly 700, thereby enabling micro-gaps to be formed between adjacent battery assemblies 700 after the multiple battery assemblies 700 form a battery cluster 12a.

[0479] Figure 39 A disassembled diagram of a battery assembly provided according to an embodiment of this application is shown.

[0480] In some embodiments, please refer to Figure 38 and Figure 39 Each battery assembly 700 is equipped with at least one module connection bracket 800, so that two battery assemblies 700 can be combined, for example, to form a battery cluster including two battery assemblies 700.

[0481] In some embodiments, the battery assembly 700 includes a plurality of battery cells 710 and an insulating connector 712. The insulating connector 712 may be made of an insulating material, including but not limited to insulating polymer materials. The insulating connector 712 is connected to the plurality of battery cells 710, enabling the plurality of battery cells 710 to form the battery assembly 700.

[0482] Understandably, to achieve conduction between the various battery cell units 710, please refer to... Figure 36 A metal connecting piece 713 can be provided on one side of the cell unit 710, and the electrical connection between each cell unit 710 in the battery assembly 700 can be realized through the metal connecting piece 713.

[0483] In some embodiments, please refer to Figure 39 The battery assembly 700 includes an end plate 720, and a module connection bracket 800 is disposed on the outside of the end plate 720 to prevent damage to the cell unit 710.

[0484] In some embodiments, the module connection bracket 800 includes an I-beam, which can improve the structural strength of the module connection bracket.

[0485] In some embodiments, please refer to Figure 39 An insulating connector 712 is connected between two opposing module connecting brackets 800. The insulating connector 712 is used to restrain multiple battery cell units 710. The insulating connector 712 can also exert a tensile force on the battery cell units 710 to control the overall size of the battery cell units 710.

[0486] The above embodiments describe in detail the components of the energy storage cabinet 10. Based on the cooperation of the cabinet body 11 and the energy storage module 12, the energy storage cabinet 10 can improve the volumetric energy density of the energy storage cabinet 10, and also improve the temperature uniformity of the energy storage module 12. Another design concept of this application embodiment lies in the design of the power distribution busbar module 20. By placing the power distribution busbar module 20 on the outer wall of the energy storage cabinet 10, the installation of the power distribution busbar module 20 can be simplified and its maintenance can be facilitated.

[0487] In some embodiments, please refer to Figure 1 The power distribution combiner module 20 includes a power distribution combiner cabinet 20a, which is constructed in a flat structure and is connected to the outer wall of the energy storage cabinet 10.

[0488] As mentioned above, the outer wall here refers to the left frame 210 or the right frame 220 in the energy storage cabinet 10.

[0489] Designing the power distribution combiner cabinet 20a as a flat structure and connecting it to the left frame 210 or the right frame 220 can control the size of the energy storage system and facilitate the layout of the energy storage system on site.

[0490] As mentioned above, support blocks 2115 are provided on the left frame 210 and the right frame 220, and the power distribution junction box 20a can be supported on the support blocks 2115.

[0491] In some embodiments, the power distribution bus module may include a power distribution bus housing, and the power distribution bus module includes a power distribution structure, a bus structure, a BMS structure, a cooling structure 20d, and a fire protection structure, wherein the power distribution structure, bus structure, BMS structure, cooling structure 20d, and fire protection structure are integrated on the power distribution bus housing.

[0492] The 20a power distribution combiner unit adopts an integrated design, which makes it more compact in structure and also makes it easier to assemble onto the outer wall of the energy storage cabinet.

[0493] In some embodiments, the power distribution structure includes a weak current area and a strong current area, which are separated from each other. For example, two areas can be divided inside the power distribution bus shell to form a weak current area and a strong current area, thereby preventing mutual interference between the weak current and the strong current.

[0494] In some embodiments, the cooling structure is used to generate airflow that passes sequentially through the weak current area and the strong current area. This configuration of the cooling structure can make full use of the cold air and achieve the purpose of dissipating heat from both the weak current area and the strong current area.

[0495] In some embodiments, please refer to Figure 1The power distribution bus module 20 also includes a fire box 20b, which is connected to the outer wall of the energy storage cabinet 10 and located above the power distribution distribution cabinet.

[0496] The power distribution bus module 20 is equipped with a fire protection box 20b to protect the energy storage system. Commonly used fire-fighting equipment can be placed inside the fire protection box 20b.

[0497] In some embodiments, please refer to Figure 1 The power distribution combiner module 20 also includes a waterproof structure 20c, which is connected to the energy storage cabinet 10 and located on both sides of the power distribution combiner cabinet 20a. The waterproof structure 20c includes a bending portion 20c1, which extends in a direction away from the outer wall.

[0498] The waterproof structure 20c, based on the setting of the bending part 20c1, can guide rainwater away from the outer wall, that is, guide rainwater away from the power distribution junction box 20a, thus protecting the power distribution junction box 20a.

[0499] Figure 40 A top view of an energy storage system provided according to an embodiment of this application is shown; Figure 41 It shows Figure 40 A magnified view of a portion of area E in the image.

[0500] Please refer to Figure 40 and Figure 41 The waterproof structure 20c can be a hollow shell structure. The waterproof structure 20c can be connected to the left frame 210 or the right frame 220 using the aforementioned first sealing connector 235. The waterproof structure 20c extends a bent portion 20c1 on the side away from the power distribution junction box 20a. The bent portion 20c1 can form a wrapping area with the front frame 230, so that rainwater can be guided from the side where the left frame 210 or the right frame 220 is located to the side where the front frame 230 is located, thereby protecting the power distribution junction box 20a.

[0501] In some embodiments, please refer to Figure 1 The waterproof structure 20c includes a first waterproof box 20c2 and a second waterproof box 20c3, which are connected together.

[0502] The design of the waterproof structure 20c here, which includes a first waterproof box 20c2 and a second waterproof box 20c3, simplifies the assembly of the waterproof structure 20c.

[0503] The function of the power distribution combiner cabinet 20a in this application embodiment can be designed with reference to the prior art. The structure of this application embodiment is optimized based on the application of traditional functions, so that it can better adapt to the above-mentioned shape of the energy storage cabinet 10.

[0504] Figure 42A front-end schematic diagram of an energy storage cabinet 10 provided according to an embodiment of this application is shown; Figure 43 It shows Figure 42 A magnified view of a section of F in the middle.

[0505] In some embodiments, please refer to Figure 42 and Figure 43 The energy storage cabinet 10 has a fixing component 13 inside it, which is connected to the energy storage module 12.

[0506] The fastener 13 can be installed on the front frame 230, rear frame 240, left frame 210 or right frame 220. The fastener 13 can be connected with the module connection bracket 800 in the energy storage module 12, thereby forming a more stable connection between the cabinet 11 and the energy storage module 12 and preventing the energy storage module 12 from shaking.

[0507] Figure 44 A schematic diagram of the left side of an energy storage cabinet provided according to an embodiment of this application is shown.

[0508] In some embodiments, please refer to Figure 44 The energy storage system also includes a seismic-resistant beam 50, which is connected to the outer wall of the energy storage cabinet 10.

[0509] The seismic beam 50 can be connected to the left frame 210 or the right frame 220. The installation of the seismic beam 50 can improve the overall strength of the energy storage cabinet 10 and prevent the energy storage cabinet 10 from deforming after the power distribution bus module 20 is installed into the energy storage cabinet 10.

[0510] The number of these seismic-resistant beams 50 can be set according to requirements, for example, in Figure 44 In the example shown, two seismic beams 50 are used and the two seismic beams 50 are arranged crosswise on the left frame 210.

[0511] In some embodiments, please refer to the reference Figure 10 and Figure 40 The length, width, and height of energy storage module 12 are d1, d2, and d3, respectively, and the volume of energy storage module 12 is v1. The length, width, and height of energy storage cabinet 10 are d4, d5, and d6, respectively, and the volume of energy storage cabinet 10 is v2. d1, d2, d3, d4, d5, and d6 satisfy the following relationship:

[0512] 0.867<d1:d4<0.903, 0.889<d2:d5<0.907, 0.836<d3:d6<0.848;

[0513] v1 and v2 satisfy the following relation:

[0514] 0.644 < v1: v2 < 0.695.

[0515] The above relationship shows the volume ratio of the energy storage module 12 in the energy storage cabinet 10. Designing the energy storage module 12 and the energy storage cabinet 10 according to the above dimensions can improve the volumetric energy density of the energy storage cabinet 10 while ensuring that the energy storage cabinet 10 has sufficient capacity.

[0516] In the specific design, the values ​​of d1:d4 can be set according to the requirements. For example, d1:d4 can be 0.87, 0.89, 0.9, etc. The values ​​of d2:d5 can be set according to the requirements. For example, d2:d5 can be 0.89, 0.9, etc. The values ​​of d3:d6 can be set according to the requirements. For example, d3:d6 can be 0.84, 0.842, etc. The values ​​of v1:v2 can be set according to the requirements. For example, v1:v2 can be 0.645, 0.67, 0.68, 0.69, etc.

[0517] In some embodiments, the energy storage system includes at least two energy storage cabinets 10 and at least one power distribution bus module 20, with the at least two energy storage cabinets 10 connected in series in the horizontal or vertical direction.

[0518] Figure 45 A layout diagram of an energy storage system provided according to an embodiment of this application is shown; Figure 46 A layout diagram of another energy storage system provided according to an embodiment of this application is shown; Figure 47 A layout diagram of another energy storage system provided according to an embodiment of this application is shown.

[0519] In some embodiments, please refer to Figures 45 to 47 The energy storage system also includes a top cover structure 300, and at least one energy storage cabinet 10 is equipped with a top cover structure 300.

[0520] The structure of an energy storage cabinet 10 with a top cover structure 300 has been described in the foregoing embodiments. According to the above embodiments, the top cover structure 300 can be installed in the installation area 11c formed by the frame 200.

[0521] Please refer to Figure 45 In some embodiments, two energy storage cabinets 10 can be used with a top cover structure 300. The size of the top cover structure 300 needs to be changed accordingly. To achieve cooperation with the two energy storage cabinets 10, the connecting top cover 310 in the top cover structure 300 can be slightly adjusted in structure. For example, a connecting top cover 310 that can cover two energy storage cabinets 10 can be used, and a partition groove can be opened in the center of the connecting top cover 310. The connecting top covers 310 on both sides of the partition groove can cover one energy storage cabinet 10 respectively. The connection between the top cover structure 300 and the cabinet body 11 can refer to the above embodiments and will not be described again.

[0522] Please refer to Figure 46 In other embodiments, four energy storage cabinets 10 can be used with a top cover structure 300. The dimensions of the top cover structure 300 need to be changed accordingly. To achieve cooperation with the four energy storage cabinets 10, the connecting top cover 310 in the top cover structure 300 can be structurally adjusted. For example, a connecting top cover 310 that can cover four energy storage cabinets 10 can be used, with three partition slots opened in the center of the connecting top cover 310. The connecting top covers 310 on both sides of the partition slots can cover one energy storage cabinet 10 respectively. The connection between the top cover structure 300 and the cabinet body 11 can refer to the above embodiments and will not be described again.

[0523] Please refer to Figure 47 In some other embodiments, eight energy storage cabinets 10 can be used with a top cover structure 300. The size of the top cover structure 300 needs to be changed accordingly. To achieve cooperation with the eight energy storage cabinets 10, the connecting top cover 310 in the top cover structure 300 can be slightly adjusted in structure. For example, a connecting top cover 310 that can cover eight energy storage cabinets 10 can be used, and three partition slots can be opened in the center of the connecting top cover 310. The connecting top covers 310 on both sides of the partition slots can cover one energy storage cabinet 10 respectively. The connection between the top cover structure 300 and the cabinet body 11 can refer to the above embodiments and will not be described again.

[0524] In the above embodiments, the top cover structure 300 simplifies the structural layout of the energy storage system. The use of two energy storage cabinets 10 with one top cover structure 300, four energy storage cabinets 10 with one top cover structure, and eight energy storage cabinets 10 with one top cover structure 300 makes the energy storage system more compact in structure. It is understood that in the above embodiments, a centralized cold plate can be used to achieve the function of the top cover structure 300.

[0525] As described above, the top cover structure 300, together with the frame 200, limits and seals the energy storage module 12. Furthermore, the top cover structure 300 also generates cool air to dissipate heat from the energy storage module 12. In some embodiments, the energy storage system may further include a centralized cooling station connected to the energy storage cabinet 10. This centralized cooling station can replace the top cover structure 300 and perform the two functions described above.

[0526] The above embodiments provide a detailed description of the energy storage system, energy storage cabinet 10, energy storage module 12, power distribution bus module 20, etc. In order to further understand the design concept of this application, the structure and assembly sequence of the energy storage system will be described below in conjunction with a part of the above embodiments. All structures and components appearing in the following description have been described in detail in the above embodiments.

[0527] Figure 48 An exploded view of a base provided according to an embodiment of this application is shown; Figure 49 A schematic diagram of the assembly of a battery assembly and a base according to an embodiment of this application is shown; Figure 50 A schematic diagram of a battery assembly provided according to an embodiment of this application is shown;

[0528] Figure 51 This diagram illustrates an assembly schematic of a battery cluster on a base according to an embodiment of this application.

[0529] Figure 52 An assembly schematic diagram of a duct cover provided according to an embodiment of this application is shown; Figure 53 An assembly diagram of a left frame and a right frame according to an embodiment of this application is shown; Figure 54 An assembly diagram of a front frame and a right frame according to an embodiment of this application is shown; Figure 55 An assembly schematic diagram of a top cover structure provided according to an embodiment of this application is shown; Figure 56 An assembly diagram of a power distribution bus module provided according to an embodiment of this application is shown.

[0530] Please refer to the following first. Figure 48 The wiring harness 141 and the wiring harness cover 142 are mounted onto the bottom frame 110 of the base 100, with the wiring harness 141 protruding from the bottom frame 110 to form a connection with the battery cluster 12a.

[0531] Please refer to the following: Figure 49 The battery assembly 700 is connected to the grounding connection piece 132 and the intermediate connection piece 133 on the base 100 through the module connection bracket 800 in the battery assembly 700, thus completing the assembly of the bottom battery assembly 700.

[0532] Please refer to the following: Figure 50 The second-layer battery assembly 700 is connected to the bottom-layer battery assembly 700 through the module connection bracket 800 in the battery assembly 700, and so on, until the battery cluster 12a is assembled on the base 100.

[0533] Please refer to the following: Figure 51 After the battery cluster 12a is assembled, the wiring harness 141 is connected to the battery cluster 12a.

[0534] Please refer to the following: Figure 52The air duct cover 600 can be connected to the front and rear ends of the battery cluster 12a through the flange 610 on the air duct cover 600. Specifically, the air duct cover 600 can be connected to the module connection bracket 800 in the battery cluster 12a. The air duct cover 600 is located on both sides of the raised sealing flange 115 on the base 100.

[0535] Please refer to the following: Figure 53 The left frame 210 and the right frame 220 are connected to the base 100. Specifically, the connection can be achieved by bolting. The bolts are inserted into the first connecting holes 2111b1 on the left frame 210 and the right frame 220 and the first bottom mounting hole 110a on the base 100 to assemble the left frame 210 and the right frame 220.

[0536] Please refer to the following: Figure 54 The front frame 230, rear frame 240, front crossbeam frame 400, and right crossbeam frame 1121 are connected to the base 100, left frame 210, and right frame 220. Specifically, the connection can be achieved through the first sealing connector 235. Taking the front frame 230 as an example, the front frame 230 can be connected to the base 100, left frame 210, right frame 220, and front crossbeam frame 400 by inserting the first sealing connector 235 around the periphery of the front frame 230.

[0537] Please refer to the following: Figure 55 After the left frame 210, right frame 220, front crossbeam frame 400 and rear crossbeam frame 500 are assembled, the above four will form an installation area 11c. The top cover structure 300 is installed in this installation area 11c. Specifically, the connection can be achieved by bolting. The bolts are inserted into the third connecting hole, the front crossbeam mounting hole 401, the rear crossbeam mounting hole 501 and the top cover structure 300 respectively to complete the assembly of the top cover structure 300.

[0538] Finally, please refer to... Figure 56 The power distribution bus module 20 is assembled onto the left frame 210 or the right frame 220, and the power distribution bus module 20 can be suspended on the support block 2115 of the left frame 210.

[0539] As can be seen from the assembly process of the energy storage system described above, the various components of the energy storage system in this embodiment have reasonable structural design and reliable assembly process. This can simplify the assembly process of the energy storage system and reduce the assembly difficulty of the energy storage system. The assembly of this energy storage system can achieve automated production, which can reduce labor costs and time costs.

[0540] Figure 57 A schematic diagram of the assembly of a battery pack 12b and a cabinet 11 according to an embodiment of this application is shown.

[0541] In some embodiments, please refer to Figure 57 When the energy storage module 12 uses a battery pack 12b, the sealing performance of the battery pack 12b itself and the structure of the cabinet 11 can be simplified. For example, the first side cover 212 in the left frame 210 and the right frame 220 can be removed, the second side cover 232 in the front frame 230 can be removed, and the third side cover 242 in the rear cover can be removed. The cabinet 11 can play a role in positioning and supporting the battery pack 12b.

[0542] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0543] In the description of this application, it should be understood that the terms "comprising" and "having" and any variations thereof used in the embodiments of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0544] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the connection within two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0545] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A cabinet, characterized in that, It includes a housing, which comprises multiple modular structures adapted to externally enclose an energy storage module.

2. The cabinet according to claim 1, characterized in that, Multiple of the aforementioned modular structures can be detachably connected and sequentially assembled into the housing.

3. The cabinet according to claim 2, characterized in that, The module structure includes: The base has an installation area for installing energy storage modules; The frame is connected to the outer periphery of the base; The top cover structure is connected to the top of the enclosure, and the top cover structure, the enclosure, and the base together form an energy storage cavity for housing the energy storage module.

4. The cabinet according to claim 3, characterized in that, The base includes: Bottom frame; Bottom cover, connected to the bottom frame; And an energy storage installation assembly, which is mounted on the bottom frame, wherein the energy storage module is connected to the energy storage installation assembly.

5. The cabinet according to claim 4, characterized in that, The energy storage installation component: Mounting block; And a grounding connection piece, which is disposed on the mounting block, and the energy storage module is connected to the grounding connection piece.

6. The cabinet according to claim 5, characterized in that, The energy storage installation components are multiple and spaced apart along the width direction on the bottom frame.

7. The cabinet according to claim 5, characterized in that, The energy storage installation components are located at both ends of the bottom frame along its length.

8. The cabinet according to claim 7, characterized in that, The energy storage installation assembly also includes: An intermediate connecting piece is disposed on the bottom frame and is located between the energy storage mounting components in the length direction.

9. The cabinet according to claim 4, characterized in that, The bottom frame includes: Bottom outline; And a bottom reinforcing beam, which is disposed within the bottom outer frame.

10. The cabinet according to claim 9, characterized in that, The bottom reinforcing beam includes: A crossbeam extends along the length of the bottom frame; And longitudinal beams, extending along the width direction of the bottom frame.

11. The cabinet according to claim 10, characterized in that, The crossbeams intersect with the longitudinal beams to form a grid-like structure.

12. The cabinet according to claim 10, characterized in that, At least one of the crossbeams, the longitudinal beams, and the bottom outer frame is made of at least one of C-shaped steel, H-shaped steel, or I-beams.

13. The cabinet according to claim 10, characterized in that, The bottom reinforcing beam also includes: A bottom inclined beam, wherein the bottom inclined beam is connected between the bottom outer frame and the longitudinal beam, and / or the bottom inclined beam is connected between the bottom outer frame and the transverse beam, and / or the bottom inclined beam is connected between the longitudinal beam and the transverse beam.

14. The cabinet according to any one of claims 9 to 13, characterized in that, The bottom frame also includes: A grounding connector is disposed at the bottom of the bottom outer frame.

15. The cabinet according to any one of claims 9 to 13, characterized in that, The bottom frame also includes: A corner sealing flange is disposed at the corner of the bottom outer frame, and the corner sealing flange is used to form a sealed connection with the frame.

16. The cabinet according to claim 15, characterized in that, A limiting cavity is formed between the corner sealing flange and the bottom surface of the bottom outer frame, or a limiting cavity is formed at the bottom of the corner sealing flange.

17. The cabinet according to any one of claims 9 to 13, characterized in that, The bottom frame also includes: A raised sealing flange is provided on the bottom outer frame, and the raised sealing flange is used to form a sealing connection with the frame.

18. The cabinet according to any one of claims 4 to 17, characterized in that, The base also includes: A wiring assembly for connecting the energy storage module and the power distribution bus module.

19. The cabinet according to claim 18, characterized in that, The wiring assembly includes: The wiring harness is disposed on the bottom cover; And a wire harness cover plate, connected to the bottom frame, the wire harness cover plate covering the wire harness.

20. The cabinet according to claim 4, characterized in that, The bottom frame has first bottom mounting holes on both sides along its width direction, and the bottom frame has second bottom mounting holes on both sides along its length direction.

21. The cabinet according to any one of claims 3 to 20, characterized in that, The enclosure includes: The left frame and the right frame are connected to both sides of the bottom frame in the width direction.

22. The cabinet according to claim 21, characterized in that, The left frame and the right frame form a symmetrical structure.

23. The cabinet according to claim 21, characterized in that, Both the left frame and the right frame include: First side frame; And a first side cover, connected to the first side frame.

24. The cabinet according to claim 23, characterized in that, The first side frame includes: Side frame; And a side reinforcing beam, which is disposed within the side outer frame.

25. The cabinet according to claim 24, characterized in that, The side frame includes: Top beam; A bottom beam, wherein the bottom beam is provided with a first connecting hole for connecting with the bottom frame; And a side beam, which connects the top beam and the bottom beam, and has a second connecting hole.

26. The cabinet according to claim 25, characterized in that, The side reinforcing beams include: A main reinforcing beam is connected between the top beam and the bottom beam, and the main reinforcing beam is arranged parallel to the side beam.

27. The cabinet according to claim 26, characterized in that, The side reinforcing beam also includes: Side inclined beams, the side inclined beams connecting the top beam and the side beams, and / or the side inclined beams connecting the top beam and the main reinforcing beam, and / or the side inclined beams connecting the bottom beam and the side beams, and / or the side wall inclined beams connecting the bottom beam and the main reinforcing beam.

28. The cabinet according to claim 25, characterized in that, The bottom beam has a threading structure on its outer side, and the threading structure includes threading positioning holes.

29. The cabinet according to claim 28, characterized in that, The threading structure includes: A threading piece is provided on the bottom beam, and a threading positioning hole is formed on the threading piece.

30. The cabinet according to claim 25, characterized in that, The top of the side beam is equipped with a lifting lug.

31. The cabinet according to claim 25, characterized in that, The bottom of the side beam is provided with a support member, and the bottom of the bottom frame forms a limiting cavity, into which the support member is inserted.

32. The cabinet according to claim 25, characterized in that, The side beam is equipped with a support block for supporting the power distribution busbar module.

33. The cabinet according to claim 25, characterized in that, The side frame also includes: A top sealing plate is provided, which is connected between the side beams and located on top of the side beams, and the top sealing plate is provided with a third connecting hole.

34. The cabinet according to any one of claims 21 to 33, characterized in that, The enclosure also includes: The front frame is connected to one side of the bottom frame along its length.

35. The cabinet according to claim 34, characterized in that, The front frame includes: Second side frame; And a second side cover, connected to the second side frame.

36. The cabinet according to claim 35, characterized in that, The second side frame has multiple windows.

37. The cabinet according to claim 36, characterized in that, The second side cover includes: Multiple sub-shells, each corresponding to a covered window.

38. The cabinet according to claim 37, characterized in that, The front frame also includes: A flip component is disposed on the second side frame, and the sub-shell is connected to the flip component. The flip component is used to drive the sub-shell to open or close the window.

39. The cabinet according to claim 38, characterized in that, The subshell is equipped with a handle.

40. The cabinet according to claim 38, characterized in that, The sub-shell is provided with a front frame intake valve and a front frame exhaust valve, with the front frame intake valve located below the front frame exhaust valve.

41. The cabinet according to claim 38, characterized in that, The edge of the sub-shell is provided with a first seal, which is used to form a seal between the sub-shell and the second side frame.

42. The cabinet according to claim 36, characterized in that, The second side frame is provided with a plurality of first sealing connectors along its circumference for connecting the second side frame to the left frame and the right frame.

43. The cabinet according to claim 42, characterized in that, The first sealing connector includes: Force-bearing part; A connecting portion, which is connected to the force-receiving portion, wherein the force-receiving portion has a flange protruding from the connecting portion; And a sealing gasket, the sealing gasket being disposed on the side of the flange facing the connection portion.

44. The cabinet according to claim 43, characterized in that, A second seal is provided on the side of the second side frame facing the left frame, and the connecting part passes through the second side frame and the second seal.

45. The cabinet according to any one of claims 34 to 44, characterized in that, The enclosure also includes: The rear frame is connected to the other side of the bottom frame along its length.

46. ​​The cabinet according to claim 45, characterized in that, The rear frame includes: Third side frame; And a third side cover, connected to the third side frame.

47. The cabinet according to claim 46, characterized in that, The third side frame is provided with a plurality of second sealing connectors along its circumference for connecting the third side frame to the left frame and the right frame.

48. The cabinet according to claim 45, characterized in that, The module structure also includes: A front crossbeam frame, connected to the left frame and the right frame, is located above the front frame; And a rear crossbeam frame, connected to the left frame and the right frame, the rear crossbeam frame being located above the rear frame.

49. The cabinet according to any one of claims 3 to 48, characterized in that, The top cover structure includes: A connecting top cover is attached to the top of the enclosure; And an air-cooling structure, which is connected to the connecting top cover, and is used to generate cold air and deliver the cold air to the energy storage cavity.

50. The cabinet according to claim 49, characterized in that, The connecting top cover forms an internal cavity and an air vent communicating with the internal cavity. The air-cooling structure includes: A refrigeration structure is disposed in the internal cavity, and the refrigeration structure is used to generate cold air; And a cold air housing connected to the connecting top cover, the cold air housing forming an air duct, the air duct being connected to the air outlet.

51. The cabinet according to claim 50, characterized in that, The air vent includes an air outlet and an air return vent, and the air duct includes an air outlet duct and an air return duct. The air outlet duct is connected to the air outlet, and the air return duct is connected to the air return vent.

52. The cabinet according to claim 51, characterized in that, The return air inlet is located between the two air outlets, and the air outlet duct is located between the two return air ducts.

53. The cabinet according to claim 51, characterized in that, The return air vents are located on both sides of the connecting top cover in the width direction.

54. The cabinet according to claim 50, characterized in that, The air vents are located at both ends of the connecting top cover along its length, and the air ducts are located at both ends of the connecting top cover along its length.

55. The cabinet according to claim 51, characterized in that, The air outlet and part of the return air outlet are located at both ends of the length direction of the top cover, and the other part of the return air outlet is located on both sides of the width direction of the top cover. Cold air enters the energy storage cavity from the air outlet and flows in opposite directions along the length direction of the top cover to form convection. The convection cold air flows to the return air outlet.

56. The cabinet according to claim 49, characterized in that, The connecting top cover includes: Top cover body; And a partition, wherein the top cover body is connected to the partition and forms the internal cavity.

57. The cabinet according to claim 51, characterized in that, A third seal is provided around the periphery of the return air vent.

58. The cabinet according to any one of claims 49 to 57, characterized in that, The top cover structure also includes: A waterproof cover having an inclined airflow guiding surface is provided circumferentially on the outer periphery of the connecting top cover, and the cold air housing is provided inside the waterproof cover.

59. The cabinet according to claim 56, characterized in that, The partition plate has flow channels formed thereon.

60. The cabinet according to claim 56, characterized in that, Top cover connecting assemblies are provided on both sides of the top cover body in the width direction for connecting the top cover body to the frame.

61. The cabinet according to claim 60, characterized in that, The top cover connection assembly includes: Top cover connecting block; And a top cover fastener that can pass through the top cover connecting block and the frame.

62. The cabinet according to claim 51, characterized in that, The module structure also includes: The air duct cover is connected to the energy storage module and forms an internal air duct with the energy storage module. The internal air duct is connected to the air outlet duct.

63. The cabinet according to claim 62, characterized in that, A gap is formed between the duct cover and the energy storage module, and the gap is filled with sealant.

64. The cabinet according to claim 62, characterized in that, The duct cover has a flange, which is connected to the energy storage module.

65. The cabinet according to claim 62, characterized in that, A fourth sealing element is provided between the air duct cover and the connecting top cover.

66. The cabinet according to any one of claims 3 to 65, characterized in that, The frame and the base are connected in a staggered manner.

67. The cabinet according to any one of claims 1 to 66, characterized in that, The outer surface of the housing is provided with a heat insulation device, which is used to form an air duct that communicates with the outside.

68. The cabinet according to claim 67, characterized in that, The heat insulation device includes: The first heat insulation element is spaced apart from the outer wall of the shell and forms a heat insulation cavity; The second heat insulation element is located inside the heat insulation cavity and is connected between the outer wall and the first heat insulation element. When the second heat insulation component melts, an air duct communicating with the outside is formed in the heat insulation cavity.

69. The cabinet according to claim 68, characterized in that, The second heat insulation component is made of a low melting point material. When the temperature of the second heat insulation component is greater than or equal to a preset temperature, the second heat insulation component melts to form an air duct communicating with the outside of the first heat insulation component at the heat insulation cavity.

70. The cabinet according to claim 68, characterized in that, The heat insulation device further includes a third heat insulation element, which is connected to the housing and is located on both sides of the housing along with the first heat insulation element.

71. The cabinet according to claim 68, characterized in that, The first thermal insulation element has a thermal insulation cavity for accommodating the phase change material.

72. An energy storage cabinet, characterized in that, The device includes a cabinet as described in any one of claims 1 to 71 and an energy storage module, wherein the energy storage module is disposed in the cabinet.

73. The energy storage cabinet according to claim 72, characterized in that, The energy storage module includes a battery pack or battery cluster.

74. The energy storage cabinet according to claim 73, characterized in that, The battery cluster includes: Overlapping battery assemblies; And a module connection bracket, which is disposed at the end of the battery assembly and is used to connect two adjacent battery assemblies.

75. The energy storage cabinet according to claim 74, characterized in that, The module connection bracket includes: The connecting ends of two adjacent module connecting brackets can form a fixed connection.

76. The energy storage cabinet according to claim 75, characterized in that, The module connection bracket also includes: A support portion extends along the thickness direction of the battery assembly, and the connecting end is connected to both ends of the support portion.

77. The energy storage cabinet according to claim 76, characterized in that, The connection end includes: First connection end; And a second connection end, wherein the dimension of the first connection end along the width direction of the battery assembly is greater than the dimension of the second connection end along the width direction of the battery assembly.

78. The energy storage cabinet according to claim 75, characterized in that, The connecting end of the module connecting bracket extends from the battery assembly in the thickness direction.

79. The energy storage cabinet according to any one of claims 74 to 78, characterized in that, Each of the battery components is configured with at least one of the module connection brackets.

80. The energy storage cabinet according to any one of claims 74 to 78, characterized in that, The battery assembly includes an end plate, and the module connection bracket is disposed on the outside of the end plate.

81. The energy storage cabinet according to any one of claims 74 to 78, characterized in that, The module connection bracket includes an I-beam.

82. The energy storage cabinet according to claim 74, characterized in that, The battery assembly includes: Multiple battery cell units; And an insulating connector, which is connected to a plurality of the battery cells.

83. The energy storage cabinet according to claim 82, characterized in that, The insulating connector is connected between two opposing module connection brackets, and the insulating connector is used to restrain multiple battery cell units.

84. The energy storage cabinet according to claim 72, characterized in that, The length, width, and height of the energy storage module are d1, d2, and d3, respectively, and the volume of the energy storage module is v1. The length, width, and height of the energy storage cabinet are d4, d5, and d6, respectively, and the volume of the energy storage cabinet is v2. The values ​​d1, d2, d3, d4, d5, and d6 satisfy the following relationship: 0.867 < d1:d4 < 0.903, and / or 0.889 < d2:d5 < 0.907, and / or 0.836 < d3:d6 < 0.848; And / or, v1 and v2 satisfy the following relationship: 0.644 < v1: v2 < 0.

695.

85. An energy storage system, characterized in that, include: The energy storage cabinet according to any one of claims 72 to 84; And a power distribution busbar module, which is installed on the outer wall of the energy storage cabinet.

86. The energy storage system according to claim 85, characterized in that, The power distribution bus module includes: A power distribution combiner cabinet, which is constructed in a flat structure, is connected to the outer wall of the energy storage cabinet.

87. The energy storage system according to claim 85, characterized in that, The power distribution bus module includes a power distribution bus shell, and the power distribution bus module includes a power distribution structure, a bus structure, a BMS structure, a cooling structure, and a fire protection structure. The power distribution structure, the bus structure, the BMS structure, the cooling structure, and the fire protection structure are integrated on the power distribution bus shell.

88. The energy storage system according to claim 87, characterized in that, The power distribution structure includes a low-voltage zone and a high-voltage zone, which are separated from each other.

89. The energy storage system according to claim 88, characterized in that, The cooling structure is used to generate airflow that passes sequentially through the weak electrical zone and the strong electrical zone.

90. The energy storage system according to claim 87, characterized in that, The fire protection structure includes: A fire extinguishing box is connected to the outer wall of the energy storage cabinet and located above the power distribution cabinet.

91. The energy storage system according to claim 87, characterized in that, The power distribution bus module also includes: A waterproof structure is connected to the energy storage cabinet and located on both sides of the power distribution combiner cabinet. The waterproof structure includes a bending portion that extends in a direction away from the outer wall.

92. The energy storage system according to any one of claims 85 to 91, characterized in that, The energy storage cabinet has a fixing component inside, which is connected to the energy storage module.

93. The energy storage system according to any one of claims 85 to 91, characterized in that, The energy storage system also includes: An anti-seismic beam is attached to the outer wall of the energy storage cabinet.

94. The energy storage system according to any one of claims 85 to 91, characterized in that, The energy storage system also includes: An energy storage converter is disposed on the outside of the energy storage cabinet.

95. The energy storage system according to any one of claims 85 to 91, characterized in that, The energy storage system also includes: An energy storage converter is integrated into the power distribution bus module.

96. The energy storage system according to any one of claims 85 to 91, characterized in that, The energy storage system includes at least two energy storage cabinets and at least one power distribution bus module, with at least two energy storage cabinets connected in series in either the horizontal or vertical direction.

97. The energy storage system according to any one of claims 85 to 91, characterized in that, The energy storage system also includes a top cover structure, and at least one of the energy storage cabinets is equipped with one of the top cover structures.

98. The energy storage system according to any one of claims 85 to 91, characterized in that, The energy storage system also includes a centralized cooling station, which is connected to multiple energy storage cabinets.

99. The energy storage system according to any one of claims 85 to 91, characterized in that, The energy storage system also includes: The exhaust structure includes a plurality of gas collection pipes spaced apart along the height direction of the energy storage module and an exhaust pipe connected to each of the gas collection pipes, wherein the gas collection pipes are connected to the gas path of the energy storage module.

100. The energy storage system according to claim 99, characterized in that, The gas collection pipeline includes a first edge pipeline, a second edge pipeline arranged along the outer periphery of the energy storage module, and a main pipeline connecting the first edge pipeline and the second edge pipeline.

101. The energy storage system according to claim 100, characterized in that, The exhaust structure also includes a valve body, which is disposed on the exhaust pipe and communicates with the exhaust pipe.

102. The energy storage system according to claim 101, characterized in that, The valve body is located at the top of the exhaust pipe.

103. An electrical appliance, characterized in that, The energy storage system includes any one of claims 85 to 102.

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