energy storage cabinet

Abstract

The application discloses an energy storage cabinet, which comprises a cabinet body, a first space and a second space formed in the cabinet body, a plurality of energy storage modules arranged in the first space, the energy storage modules being arranged in a stacking mode in a first direction of the energy storage cabinet, the first space and the second space being arranged side by side in a second direction perpendicular to the first direction, and a control unit arranged in the second space and electrically connected with the energy storage modules. Thus, the control unit and the energy storage modules are arranged in different spaces respectively, the control unit and the energy storage modules are separated, interference between the control unit and the energy storage modules is avoided, the control unit and the energy storage modules are assembled compactly, and the volume of the energy storage cabinet is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of energy storage cabinets, and in particular to an energy storage cabinet. BACKGROUND

[0002] In the related art, an existing energy storage cabinet defines a space for installing an energy storage module and a control unit. The energy storage module and the control unit are prone to interference. In addition, the components in the energy storage cabinet are not compactly assembled, resulting in a relatively large volume of the energy storage cabinet. SUMMARY

[0003] The present application aims to at least solve one of the technical problems in the prior art. To this end, one object of the present application is to provide an energy storage cabinet that can separate the control unit and the energy storage module, avoid interference between the control unit and the energy storage module, and also allow the control unit and the plurality of energy storage modules to be compactly assembled, thereby facilitating reduction of the volume of the energy storage cabinet.

[0004] According to the energy storage cabinet of the present application, the cabinet body includes a cabinet body and an opening and closing door, the cabinet body defines an installation cavity with one end open, the installation cavity forms a first space and a second space, and the opening and closing door is used to open or close the installation cavity. A plurality of energy storage modules are arranged in the first space, and the plurality of energy storage modules are arranged in a stacked manner in a first direction of the energy storage cabinet. The first space and the second space are arranged side by side in a second direction perpendicular to the first direction. A control unit is arranged in the second space and electrically connected to the energy storage modules.

[0005] According to the energy storage cabinet of the present application, by arranging the control unit and the energy storage module in different spaces, the control unit and the energy storage module can be separated, interference between the control unit and the energy storage module can be avoided, and the control unit and the plurality of energy storage modules can be compactly assembled, thereby facilitating reduction of the volume of the energy storage cabinet.

[0006] In some examples of the present application, the energy storage cabinet is provided with a control switch, the control switch is arranged in the cabinet body and is in communication connection with the control unit, and when the opening and closing door is opened, the control switch is triggered to make the control unit control the energy storage cabinet to stop.

[0007] In some examples of the present application, the energy storage cabinet further comprises a smoke detection member arranged in the cabinet body and in communication connection with the control unit, and when the smoke detection member detects smoke, the control unit is used to control the energy storage cabinet to stop.

[0008] In some examples of the present application, the energy storage cabinet further comprises an emergency stop switch, which is in communication with the control unit, and when the emergency stop switch is triggered, the control unit is configured to control the energy storage cabinet to stop.

[0009] In some examples of the present application, the energy storage cabinet further comprises an audible and visual alarm device, which is arranged outside the cabinet body and in communication with the control unit, and the control unit is configured to control the audible and visual alarm device to send alarm information.

[0010] In some examples of the present application, the inner surface of the cabinet body is attached with thermal insulation cotton.

[0011] In some examples of the present application, the energy storage cabinet further comprises a walking wheel, which is arranged at the lower end of the cabinet body.

[0012] In some examples of the present application, the second space is adapted to guide wind into the first space.

[0013] In some examples of the present application, the first space and the second space are in communication.

[0014] In some examples of the present application, the energy storage cabinet is provided with a first communication hole, which communicates the first space and the second space.

[0015] In some examples of the present application, the first communication hole is a plurality of first communication holes, which are arranged along the first direction, and each of the energy storage modules corresponds to at least one first communication hole.

[0016] In some examples of the present application, a third space is formed in the mounting cavity, the third space communicates the first communication hole and the second space, and the third space has a second communication hole in communication with the first space, and the wind in the second space is adapted to flow into the first space through the third space.

[0017] In some examples of the present application, the second communication hole is a plurality of second communication holes, which are arranged along the first direction, and the plurality of first communication holes and the plurality of second communication holes correspond one by one.

[0018] In some examples of the present application, a plurality of subspaces are formed in the third space, the plurality of subspaces, the plurality of first communication holes and the plurality of second communication holes correspond one by one, and the subspace communicates the corresponding first communication hole and the second communication hole.

[0019] In some examples of the present application, the second communication hole is one, and in the first direction, the second communication hole is arranged close to the middle of the third space.

[0020] In some examples of the present application, a first channel is formed in the installation cavity, the first channel and the first space are arranged along the first direction, and the first channel communicates with the first space and / or the third space.

[0021] In some examples of the present application, the cabinet body has a base and a top plate spaced apart in the first direction, and the first channel is located between the top plate and the base.

[0022] In some examples of the present application, the energy storage cabinet further comprises:

[0023] An air conditioner is arranged in the cabinet body, the air conditioner has an air outlet and an air inlet, the air outlet communicates with the second space and / or the first channel, and the air inlet communicates with the first space.

[0024] In some examples of the present application, the air conditioner is arranged outside the cabinet body.

[0025] In some examples of the present application, an end of the first space close to the air inlet is open to form a first opening, an end of the second space close to the air outlet is open to form a second opening, and the first opening and the second opening are spaced apart by a spacer.

[0026] In some examples of the present application, the third space is arranged with the first space in a third direction of the energy storage cabinet, and the third direction is orthogonal to the first direction and the second direction.

[0027] In some examples of the present application, a partition is arranged in the installation cavity to divide the installation cavity into the first space, the second space, the third space and the first channel.

[0028] In some examples of the present application, the partition is provided with the first communication hole.

[0029] In some examples of the present application, the energy storage cabinet further comprises: a positive power line and a negative power line, one end of the positive power line is connected with the control unit, and the other end of the positive power line is adapted to be plugged with the connection terminal of the energy storage module.

[0030] One end of the negative power line is connected with the control unit, and the other end of the negative power line is adapted to be plugged with the connection terminal of the energy storage module.

[0031] In some examples of the present application, one end of the positive power line and one end of the negative power line are located in the second space, and the other end of the positive power line and the other end of the negative power line are located in the first space.

[0032] In some examples of the present application, the energy storage module comprises: an energy storage unit, the energy storage unit comprising a plurality of battery cells, the plurality of battery cells being arranged in sequence along a thickness direction of the battery cells, at least two adjacent battery cells forming a first air duct extending along a third direction, the third direction being orthogonal to the first direction and the second direction, the first air duct being in communication with the first space.

[0033] In some examples of the present application, the energy storage module further comprises:

[0034] a first side plate and a second side plate, the energy storage unit being arranged between the first side plate and the second side plate;

[0035] a support beam extending along the thickness direction of the battery cells and connecting the first side plate and the second side plate so that the first side plate and the second side plate clamp the energy storage unit, at least one side of the energy storage unit in a width direction of the battery cells being provided with the support beam.

[0036] In some examples of the present application, the energy storage module further comprises: a top cover and a bottom cover, the top cover and the bottom cover being connected with the first side plate and the second side plate, and the energy storage unit being located between the top cover and the bottom cover, a second air duct being formed between the top cover and the energy storage unit and / or between the bottom cover and the energy storage unit by the partitioning effect of the support beam, the second air duct being in communication with the first space.

[0037] In some examples of the present application, the support beam is in contact with the surface of the energy storage unit close to the top cover and / or the top cover and / or the support beam is in contact with the surface of the energy storage unit close to the bottom cover and / or the bottom cover, so as to divide the second air duct into a plurality of sub-air ducts, and the support beam has an air passing channel communicating adjacent two sub-air ducts.

[0038] In some examples of the present application, the energy storage module is provided with a make-up air hole, the make-up air hole being in communication with the first space and the second air duct.

[0039] In some examples of the present application, the top cover and / or the bottom cover is provided with the make-up air hole.

[0040] In some examples of the present application, the energy storage module further comprises: a heat dissipation member, the heat dissipation member being arranged between at least two adjacent battery cells, the heat dissipation member defining the first air duct.

[0041] In some examples of the present application, the plurality of battery cells form a plurality of battery cell groups, each battery cell group comprising at least one battery cell, and the heat dissipation member being arranged between adjacent two battery cell groups.

[0042] In some examples of the present application, the energy storage module further comprises a driving fan, the driving fan is arranged at one end of the energy storage unit in the length direction of the battery cell and is spaced apart from the energy storage unit, and the driving fan is used to drive the gas to flow in the first air duct along the first air duct.

[0043] In some examples of the present application, the driving fan is a plurality of driving fans, and the plurality of driving fans are sequentially spaced apart in the thickness direction of the battery cell.

[0044] In some examples of the present application, the energy storage module further comprises a temperature detection member, the temperature detection member is used to detect the temperature of the energy storage module, and the driving fan and the temperature detection member are both adapted to be connected with a battery management system of the energy storage module, and the battery management system is used to control the working mode of the driving fan by receiving the temperature information detected by the temperature detection member.

[0045] In some examples of the present application, the energy storage module further comprises a heat dissipation end plate, the driving fan is mounted on the heat dissipation end plate, and the heat dissipation end plate is fixedly connected with the first side plate and / or the second side plate.

[0046] In some examples of the present application, the energy storage module further comprises a fixing plate, the fixing plate is mounted on the first side plate and / or the second side plate, and the fixing plate is provided with a handle.

[0047] In some examples of the present application, the energy storage module further comprises a fixing bracket, the fixing bracket is mounted on the first side plate and / or the second side plate, and the fixing bracket is located between the fixing plate and the heat dissipation end plate and is used to limit the heat dissipation end plate.

[0048] In some examples of the present application, the heat dissipation end plate is provided with a positive electrode connection terminal and a negative electrode connection terminal, the positive electrode connection terminal is connected with a total positive output pole of the energy storage unit, the negative electrode connection terminal is connected with a total negative output pole of the energy storage unit, and the positive electrode connection terminal and the negative electrode connection terminal are arranged on the same side of the heat dissipation end plate in the second direction.

[0049] In some examples of the present application, the heat dissipation end plate defines a mounting groove, and the positive electrode connection terminal and the negative electrode connection terminal are both arranged in the mounting groove.

[0050] In some examples of the present application, the heat dissipation end plate further defines a foolproof groove, the foolproof groove is in communication with the mounting groove, and the foolproof groove is used for wiring.

[0051] The heat dissipation end plate further defines a wiring groove, the wiring groove is in communication with the mounting groove, and the foolproof groove and the wiring groove are respectively located on both sides of the mounting groove.

[0052] In some examples of the present application, the energy storage module further comprises a ventilation panel, which is arranged at a side of the driving fan away from the energy storage unit, and the ventilation panel is provided with an air outlet hole.

[0053] In some examples of the present application, the ventilation panel comprises a panel frame and a ventilation grille fixed to the panel frame, the ventilation grille comprises a plurality of spaced apart air guide grilles, both ends of each air guide grille are fixed to the panel frame, and the air outlet hole is formed between adjacent two air guide grilles.

[0054] In some examples of the present application, the hollow ratio α of the ventilation grille satisfies the following relationship: α≥(μV / v) / S1, wherein μ satisfies the relationship 0.9≤μ≤1.1, V is the exhaust volume per unit time when the driving fan is running at full power, v is the maximum wind speed of the driving fan, and S1 is the effective air outlet area of the driving fan.

[0055] In some examples of the present application, the energy storage module further comprises an end plate, which is arranged at the other end of the energy storage unit and is spaced apart from the energy storage unit, and the end plate is connected with the top cover and / or the bottom cover.

[0056] In some examples of the present application, the end plate is provided with a first air inlet hole in communication with the first air duct.

[0057] In some examples of the present application, the length dimension of the battery cell is E, which satisfies the relationship: 400mm≤E≤1500mm;

[0058] The width dimension of the battery cell is F, which satisfies the relationship: 70mm≤F≤150mm;

[0059] The thickness dimension of the battery cell is G, which satisfies the relationship: 10mm≤G≤25mm.

[0060] In some examples of the present application, the energy storage cabinet further comprises an electrical connection assembly, which is used for electrically connecting two energy storage modules, and the electrical connection assembly is plug-connected with the energy storage modules.

[0061] In some examples of the present application, the electrical connection assembly comprises a conductive row and an insulating cover, the conductive row is adapted to be plug-connected with adjacent two energy storage modules to electrically connect the two energy storage modules, and the insulating cover is arranged on the conductive row and is adapted to be connected with the energy storage modules.

[0062] In some examples of the present application, the heat dissipation end plate is provided with a first mounting portion, the ventilation panel shields the driving fan, and the ventilation panel is provided with a second mounting portion corresponding to the first mounting portion for matched connection.

[0063] In some examples of the present invention, one of the first mounting portion and the second mounting portion is provided with a magnetic member, and the other is provided with a magnetic attraction member, and the ventilation panel and the heat dissipation end plate are adsorbed and connected via the magnetic member and the magnetic attraction member.

[0064] In some examples of the present invention, the energy storage module further includes:

[0065] An information collector, comprising an integrated output terminal, a signal input terminal, and a power input terminal, wherein the integrated output terminal is connected to the signal input terminal and the power input terminal, the driving fan is connected to the integrated output terminal, and the information collector supplies power and provides a control signal to the driving fan through the integrated output terminal;

[0066] A high-voltage distribution box, comprising a signal lead-out terminal and a power supply lead-out terminal, wherein the signal lead-out terminal is connected to the signal input terminal, and the high-voltage distribution box provides the control signal to the signal input terminal via the signal lead-out terminal, and the power supply lead-out terminal is connected to the power supply input terminal, and the high-voltage distribution box supplies power to the power supply input terminal via the power supply lead-out terminal.

[0067] In some examples of the present invention, the information collector of each energy storage module is aligned in a first direction, and the power supply input terminals of the plurality of energy storage modules are connected to the power supply output terminals via a first external power supply line.

[0068] In some examples of the present invention, the first external power supply line includes multiple power supply branches, the number of the power supply branches corresponds to the number of the energy storage modules, each of the power supply branches includes a branch main line and a branch branch connected in parallel with the branch main line, the branch main lines of the multiple power supply branches are connected in sequence, and the branch branches of the multiple power supply branches are respectively connected to the corresponding power supply input terminals.

[0069] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0071] Figure 1 is an exploded view of an energy storage module according to an embodiment of the present invention;

[0072] Figure 2 is a schematic diagram of the internal structure of an energy storage module according to an embodiment of the present invention;

[0073] Figure 3 is a schematic diagram of an energy storage module according to an embodiment of the application;

[0074] Figure 4 is a schematic diagram of an energy storage module according to an embodiment of the application without a ventilation panel;

[0075] Figure 5 is a schematic diagram of an energy storage module according to an embodiment of the application;

[0076] Figure 6 is a schematic diagram of an energy storage module according to an embodiment of the application;

[0077] Figure 7 is a schematic diagram of an energy storage module according to an embodiment of the application;

[0078] Figure 8 is Figure 7 is an enlarged view of M in FIG. 10;

[0079] Figure 9 is a side view of a heat sink according to an embodiment of the application;

[0080] Figure 10 is a front view of a heat sink according to an embodiment of the application;

[0081] Figure 11 is a schematic diagram of an energy storage module according to an embodiment of the application;

[0082] Figure 12 is a schematic diagram of an energy storage module according to an embodiment of the application;

[0083] Figure 13 is a schematic diagram of an energy storage module according to an embodiment of the application;

[0084] Figure 14 is a schematic diagram of an energy storage module according to an embodiment of the application;

[0085] Figure 15 is a schematic diagram of an energy storage module according to an embodiment of the application;

[0086] Figure 16 is a schematic diagram of an energy storage module according to an embodiment of the application;

[0087] Figure 17 is a schematic diagram of an energy storage module according to an embodiment of the application;

[0088] Figure 18 is a schematic diagram of an energy storage module according to an embodiment of the application;

[0089] Figure 19 is an assembled view of the cell and the connecting tab according to an embodiment of the present application;

[0090] Figure 20 is an assembled view of the connecting tab and the busbar mounting rack according to an embodiment of the present application;

[0091] Figure 21 is a partial enlarged view of the connecting tab and the busbar mounting rack assembly according to an embodiment of the present application;

[0092] Figure 22 is an assembled view of the heat dissipation end plate, the driving fan and the information collector according to an embodiment of the present application;

[0093] Figure 23 is an assembled view of the electrical connection assembly and the connecting terminal according to an embodiment of the present application;

[0094] Figure 24 is another angle view of the electrical connection assembly and the connecting terminal assembly according to an embodiment of the present application;

[0095] Figure 25 is Figure 2 is a sectional view at A-A in FIG. 12;

[0096] Figure 26 is an exploded view of the conductive bar and the connecting terminal according to an embodiment of the present application;

[0097] Figure 27 is an assembled view of the conductive bar and the connecting terminal according to an embodiment of the present application;

[0098] Figure 28 is an exploded view of the conductive bar and the insulating cover according to an embodiment of the present application;

[0099] Figure 29 is an assembled view of the conductive bar and the insulating cover according to an embodiment of the present application;

[0100] Figure 30 is an exploded view of the electrical connection assembly and the connecting terminal on the energy storage module according to an embodiment of the present application;

[0101] Figure 31 is an assembled view of the electrical connection assembly and the connecting terminal on the energy storage module according to an embodiment of the present application;

[0102] Figure 32 is a schematic view of the ventilation panel according to an embodiment of the present application;

[0103] Figure 33 is a schematic view of the energy storage cabinet according to an embodiment of the present application;

[0104] Figure 34 is a sectional view of the energy storage cabinet according to an embodiment of the present application;

[0105] Figure 35 is a schematic diagram of the internal structure of the energy storage cabinet according to an embodiment of the present application;

[0106] Figure 36 is a schematic diagram of the energy storage cabinet without the energy storage module installed according to an embodiment of the present application;

[0107] Figure 37 is an exploded view of Figure 3 ;

[0108] Figure 38 is a partial enlarged view of the ventilation panel in Figure 32 ;

[0109] Figure 39 is a front view of the ventilation panel according to an embodiment of the present application;

[0110] Figure 40 is a bottom view of the ventilation panel according to an embodiment of the present application;

[0111] Figure 41 is a partial enlarged view of Figure 40 ;

[0112] Figure 42 is a bottom view of the ventilation panel according to another embodiment of the present application;

[0113] Figure 43 is a partial structure enlarged view of Figure 42 ;

[0114] Figure 44 is a front view of the ventilation panel according to yet another embodiment of the present application;

[0115] Figure 45 is a front view of the ventilation panel according to still another embodiment of the present application;

[0116] Figure 46 is a front view of the ventilation panel according to another embodiment of the present application;

[0117] Figure 47 is an enlarged view of the ventilation panel at the second mounting portion according to an embodiment of the present application;

[0118] Figure 48 is an enlarged view of the heat dissipation end plate at the first mounting portion according to an embodiment of the present application;

[0119] Figure 49 is a schematic diagram of the energy storage cabinet according to an embodiment of the present application;

[0120] Figure 50 is a schematic diagram of the driving fan and information collector according to an embodiment of the present application;

[0121] Figure 51 is a schematic diagram of connecting information collectors of two adjacent energy storage modules according to an embodiment of the present invention;

[0122] Figure 52 is a schematic diagram of connecting information collectors of two adjacent energy storage modules according to another embodiment of the present invention;

[0123] Figure 53 1. It is a schematic diagram of the assembly of the energy storage module, the control unit, the positive power line and the negative power line according to an embodiment of the present invention;

[0124] Figure 54 Schematic diagram of an energy storage cabinet filled with energy storage modules according to an embodiment of the present invention.

[0125] Reference numerals:

[0126] Energy storage cabinet 200;

[0127] Electrical connection assembly 100;

[0128] Conductive bar 10; first sub-conductive bar 11; second sub-conductive bar 12; third sub-conductive bar 13; avoidance space 14; positioning slot 15;

[0129] Insulation cover 20; insulation cover body 21; first clamping portion 22; shielding portion 23;

[0130] Insulation sleeve 30;

[0131] Energy storage module 201;

[0132] Connecting terminal 202 ; conductive spring 2021 ; terminal body 2022 ; plug-in slot 2023 ; first conductive spring 2024 ; second conductive spring 2025 ; limiting protrusion 2026 ; conductive member 2027 ; second clamping portion 2028 ;

[0133] First side plate 211; second side plate 212;

[0134] Top cover 213; bottom cover 214; air supply hole 215; second air duct 216; sub-air duct 217; air passage 218; support beam 219; energy storage unit 220; limiting boss 221; third air duct 222; mounting hole 223; first fastener 224;

[0135] Heat dissipation element 209; first air duct 210;

[0136] Heat dissipation end plate 206; driving fan 2061; second fastener 20611; information collector 2062; mounting slot 2063a;

[0137] Anti-fouling slot 203; wiring slot 2064; first slot section 20641; second slot section 20642; third slot section 20643;

[0138] Fixed plate 2065; handle 2066; fixed bracket 2067; first mounting portion 2069; magnetic member 20691; first mounting seat 20692; first positioning member 20693;

[0139] External integrated line 206111, integrated output terminal 20621, signal input terminal 20622, power input terminal 20623, power output terminal 20624; snap-in socket 20625; signal output terminal 20626; first snap-in slot 20627; second snap-in slot 20628; power branch line 2063; branch line main line 20631; male connector 20632; female connector 20633; branch line shunt 20634; second external power supply line 2065a; external signal line 2066a; high-voltage distribution box 299;

[0140] Positive connection terminal 2029; negative connection terminal 2030; mounting post 2031;

[0141] Ventilation panel 207; panel frame 2071; ventilation grille 2072; air guide grille 20721; air outlet 20722; second mounting portion 2079; magnetic member 20791; second mounting seat 20792; second positioning member 20793; guide surface 20794;

[0142] Battery cell 208; end plate 2081; first air inlet 2082; connecting piece 2083; busbar mounting frame 2084; plug-in column 2085; plug-in hole 2086;

[0143] First space 40; module mounting frame 401;

[0144] Second space 41; third space 42; first passage 43; first communication hole 44;

[0145] Air conditioner 50; air outlet 51; air inlet 52;

[0146] Cabinet 60; cabinet body 61; opening and closing door 62; partition 63;

[0147] Control unit 1000; positive power line 1001; negative power line 1002; control switch 1003; sound and light alarm device 1004; emergency stop switch 1005; reinforcement plate 1006; decorative cover 1007; wiring hole 1008. DETAILED DESCRIPTION

[0148] Embodiments of the present application are described below in detail with reference to the accompanying drawings, wherein the same or similar components or components having the same or similar functions are denoted by the same or similar reference numerals throughout the drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and cannot be understood as a limitation of the present application.

[0149] The following describes Figures 1-54 An energy storage cabinet 200 according to an embodiment of the present application is described below, which can supply power to other power-consuming devices. An energy storage module 201 can be installed in the energy storage cabinet to supply power to other power-consuming devices.

[0150] As Figures 1-52 shown, the energy storage cabinet 200 according to an embodiment of the present application includes a control unit 1000, a cabinet body 60, and a plurality of energy storage modules 201. The plurality of energy storage modules 201 are installed in the cabinet body 60, and the plurality of energy storage modules 201 are arranged in a first direction of the energy storage cabinet 200 in a stacked manner. When the energy storage cabinet 200 is placed in a normal direction, the first direction of the energy storage cabinet 200 refers to the up-down direction of the energy storage cabinet 200, i.e., the plurality of energy storage modules 201 are arranged in the up-down direction of the energy storage cabinet 200 in a stacked manner. Figure 35 The cabinet body 60 has a first space 40 and a second space 41 formed therein, and the first space 40 and the second space 41 are arranged side by side in a second direction perpendicular to the first direction. It can also be understood that the first space 40 and the second space 41 are arranged side by side in the second direction of the energy storage cabinet 200, and the first space 40 and the second space 41 can be arranged adjacently, i.e., the first space 40 and the second space 41 are arranged adjacently. When the energy storage cabinet 200 is placed in the normal direction, the second direction of the energy storage cabinet 200 can refer to the left-right direction of the energy storage cabinet 200. Figure 35 The first space 40 is used to install the energy storage module 201, and the plurality of energy storage modules 201 are arranged in the first space 40, i.e., the energy storage module 201 is installed in the first space 40. The control unit 1000 is arranged in the second space 41, and the control unit 1000 is electrically connected to the energy storage module 201. The control unit 1000 can control the energy storage module 201 to deliver power to the outside.

[0151] The control unit 1000 and the energy storage module 201 are arranged in different spaces, i.e., the control unit 1000 is arranged in the second space 41 and the energy storage module 201 is arranged in the first space 40, so that the control unit 1000 and the energy storage module 201 are separated, avoiding interference between the control unit 1000 and the energy storage module 201. In addition, the control unit 1000 and the plurality of energy storage modules 201 can be assembled compactly, which is beneficial to reducing the volume of the energy storage cabinet 200.

[0152] In some embodiments of the present application, the first space 40 and the second space 41 are in communication, and the second space 41 is adapted to guide the wind into the first space 40. Wherein, by arranging the first space 40 and the second space 41 side by side in the second direction of the energy storage cabinet 200, when the wind is guided into the first space 40 by the second space 41 along the second space 41, the wind can flow into the first space 40 from the side, and after the wind flows into the first space 40, the wind flowing into the first space 40 can be evenly dispersed to each energy storage module 201, so that the wind of each energy storage module 201 is the same or approximately the same, thereby improving the consistency of the heat dissipation efficiency of the plurality of energy storage modules 201, making the heat dissipation of the plurality of energy storage modules 201 uniform, improving the heat dissipation efficiency of the energy storage module 201, ensuring the heat dissipation effect of each energy storage module 201, making the temperature of the plurality of energy storage modules 201 balanced, effectively avoiding the thermal runaway of the energy storage module 201, and improving the use safety of the energy storage cabinet 200.

[0153] In some embodiments of the present application, as shown in Figure 35 A plurality of module mounting racks 401 can be provided in the first space 40, the plurality of module mounting racks 401 are arranged in the first direction and are spaced apart in sequence, and the plurality of energy storage modules 201 are respectively installed on the plurality of module mounting racks 401. Wherein, the plurality of energy storage modules 201 and the plurality of module mounting racks 401 are arranged one by one, one module mounting rack 401 is installed with one energy storage module 201, and the module mounting rack 401 can reliably support the energy storage module 201, so that the energy storage module 201 is stably installed in the first space 40.

[0154] In some embodiments of the present application, as shown in Figure 34 and Figure 35 A third space 42 is formed in the cabinet body 60, the third space 42 is in communication with the first space 40 and the second space 41, and further, the third space 42, the first space 40 and the second space 41 are arranged in the first direction of the energy storage cabinet 200, and the wind in the second space 41 is adapted to flow into the first space 40 through the third space 42. Wherein, after the wind flows into the second space 41, the wind is guided into the third space 42 by the second space 41 along the second space 41, the wind flows into the third space 42 from the side of the third space 42, and after the wind flows into the third space 42, the wind flowing into the third space 42 can be evenly dispersed to each energy storage module 201, so that the wind of each energy storage module 201 is the same or approximately the same, achieving the effect of balanced wind, thereby further improving the consistency of the heat dissipation efficiency of the plurality of energy storage modules 201, making the heat dissipation of the plurality of energy storage modules 201 more uniform, further ensuring the heat dissipation effect of each energy storage module 201, further making the temperature of the plurality of energy storage modules 201 balanced, more effectively avoiding the thermal runaway of the energy storage module 201, and further improving the use safety of the energy storage cabinet 200.

[0155] In some embodiments of the present application, asFigure 34 and Figure 35 As shown, in the second direction of the energy storage cabinet 200, the first space 40 and the third space 42 are located on the same side of the second space 41, and the third space 42 is adjacent to the first space 40 and the second space 41. Figure 35 When placed in the middle direction, the first space 40 and the third space 42 can be arranged on the left side of the second space 41, or on the right side of the second space 41. This application takes the first space 40 and the third space 42 being arranged on the right side of the second space 41 as an example for explanation. Figure 35 When placed in the neutral orientation, the third orientation of the energy storage cabinet 200 refers to the front-to-back direction of the energy storage cabinet 200. The third space 42 is located behind the first space 40. Specifically, the left side of the third space 42 is connected to the second space 41, and the front end of the third space 42 is connected to the first space 40. After air enters the second space 41, it flows along the second space 41 toward the rear end of the second space 41. When the air reaches the third space 42, it flows from the left side into the third space 42. The air in the third space 42 then flows from the front end of the third space 42 into the first space 40, dissipating heat from the energy storage module 201 and thereby cooling the energy storage module 201.

[0156] In some embodiments of the present invention, the energy storage cabinet 200 is provided with a first connecting hole 44, which connects the first space 40 and the second space 41. There may be one or more first connecting holes 44. After air flows into the second space 41, the air in the second space 41 flows through the first connecting holes 44 into the first space 40 to exchange heat with the energy storage module 201, thereby preventing thermal runaway of the energy storage module 201 and further improving the safety of the energy storage cabinet 200.

[0157] In some embodiments of the present invention, there are multiple first communication holes 44, arranged along the first direction. Furthermore, the multiple first communication holes 44 are sequentially spaced along the first direction, with each energy storage module 201 corresponding to at least one first communication hole 44. Air within the second space 41 flows into the first space 40 through the multiple first communication holes 44, allowing the air flowing into the first space 40 to be more evenly distributed to each energy storage module 201. This ensures that the air entering each energy storage module 201 is the same or substantially the same, better achieving balanced air intake, thereby further improving the consistency of heat dissipation efficiency across the multiple energy storage modules 201, ensuring more uniform heat dissipation across the multiple energy storage modules 201, further ensuring the heat dissipation efficiency of each energy storage module 201, and further balancing the temperature across the multiple energy storage modules 201. This effectively prevents thermal runaway of the energy storage modules 201 and further improves the safety of the energy storage cabinet 200.

[0158] In some embodiments of the present application, as shown in Figure 34 and Figure 35 The third space 42 is formed in the cabinet 60, and the third space 42 communicates with the second space 41 through the first communication holes 44. The first communication holes 44 are one or more, preferably multiple. The multiple first communication holes 44 all communicate the third space 42 and the second space 41, that is, the third space 42 and the second space 41 communicate through the multiple first communication holes 44, and the multiple first communication holes 44 are arranged along the first direction. The third space 42 has a second communication hole that communicates with the first space 40. The air in the second space 41 is adapted to flow into the first space 40 through the third space 42. The second communication hole is one or more. Further, the multiple first communication holes 44 are arranged in sequence and spaced apart along the first direction. At least one first communication hole 44 is arranged at the corresponding height of each energy storage module 201 in the first direction of the energy storage cabinet 200. Preferably, the second communication hole is multiple. After the air flows into the second space 41, the air in the second space 41 flows into the third space 42 from the multiple first communication holes 44. The air flows into the third space 42 from the side of the second space 41. After the air flows into the third space 42 from the multiple first communication holes 44, the air in the third space 42 flows into the first space 40 from the second communication hole. This can make the air flowing into the first space 40 more evenly dispersed to each energy storage module 201, so that the air inlet of each energy storage module 201 is the same or approximately the same, better achieving the effect of balanced air inlet, thereby further improving the consistency of the heat dissipation efficiency of the multiple energy storage modules 201, making the heat dissipation of the multiple energy storage modules 201 more uniform, further ensuring the heat dissipation effect of each energy storage module 201, further making the temperature of the multiple energy storage modules 201 balanced, more effectively avoiding thermal runaway of the energy storage module 201, and further improving the use safety of the energy storage cabinet 200.

[0159] Further, the second communication hole is multiple. The multiple second communication holes are arranged along the first direction. Further, the multiple second communication holes are arranged in sequence and spaced apart along the first direction. The multiple first communication holes 44 and the multiple second communication holes one-to-one correspond. After the air flows into the third space 42 from the multiple first communication holes 44, the air in the third space 42 flows into the first space 40 from the multiple second communication holes. This can make the air flowing into the third space 42 more evenly dispersed to each energy storage module 201, so that the air inlet of each energy storage module 201 is the same or approximately the same, better achieving the effect of balanced air inlet, thereby further improving the consistency of the heat dissipation efficiency of the multiple energy storage modules 201, making the heat dissipation of the multiple energy storage modules 201 more uniform.

[0160] Further, the third space 42 is formed with a plurality of subspaces, and further, the third space 42 has a plurality of spacing plates which are spaced apart in the first direction to divide the third space 42 into a plurality of subspaces. The plurality of subspaces, the plurality of first communication holes 44 and the plurality of second communication holes are arranged one by one, and the subspaces communicate with the corresponding first communication holes 44 and second communication holes. After the wind flows into the third space 42 from the plurality of first communication holes 44 at the same time, the wind flowing into the first communication hole 44 flows into the corresponding subspace, and the wind in the subspace flows to the corresponding energy storage module 201 from the corresponding second communication hole. The wind flowing into the third space 42 can be more evenly distributed to each energy storage module 201, so that the air inlet of each energy storage module 201 is the same or approximately the same, and the effect of balancing the air inlet is better achieved, thereby further improving the consistency of the heat dissipation efficiency of the plurality of energy storage modules 201, and making the heat dissipation of the plurality of energy storage modules 201 more uniform.

[0161] In some embodiments of the application, the second communication hole is provided as one, and in the first direction, the second communication hole is arranged near the middle of the third space 42. After the wind flows into the third space 42, the wind in the third space 42 flows into the first space 40 from the second communication hole, and the gas diffuses in the first direction. The wind flowing into the third space 42 can be more evenly distributed to each energy storage module 201, so that the air inlet of each energy storage module 201 is the same or approximately the same, and the effect of balancing the air inlet is better achieved, thereby further improving the consistency of the heat dissipation efficiency of the plurality of energy storage modules 201, and making the heat dissipation of the plurality of energy storage modules 201 more uniform.

[0162] In some embodiments of the application, the cabinet 60 is formed with a third space 42, the third space 42 communicates with the first space 40 and the second space 41, the wind flows into the third space 42 from the second space 41, and the wind in the third space 42 flows into the first space 40 to dissipate heat for the energy storage module 201, thereby achieving rapid cooling of the energy storage module 201.

[0163] In some embodiments of the application, as Figures 33-35As shown, the energy storage cabinet 200 can further include an air conditioner 50, and the air conditioner 50 can be arranged on the cabinet body 60. The air conditioner 50 has an air outlet 51 and an air inlet 52. The air outlet 51 is in communication with the second space 41 and / or the first channel 43 in the cabinet body 60, and the air inlet 52 is in communication with the first space 40. When the air conditioner 50 is working, cold air is blown from the air outlet 51 of the air conditioner 50 into the second space 41, and then flows into the third space 42 through the plurality of first communication holes 44. Then, the cold air flows into the first space 40 from the third space 42, exchanges heat with the energy storage modules 201 to dissipate heat of the energy storage modules 201, and finally flows into the air conditioner 50 from the air inlet 52 of the air conditioner 50 to realize the circulation of the air, continuously taking away the heat of the energy storage modules 201, thereby improving the heat dissipation efficiency of the plurality of energy storage modules 201.

[0164] In some embodiments of the present application, the air conditioner 50 is arranged outside the cabinet body 60. In this way, the air conditioner 50 can avoid occupying the internal space of the cabinet body 60, and sufficient assembly space can be reserved for other components in the cabinet body 60.

[0165] In some embodiments of the present application, the size of the second space 41 along the first direction is greater than the size of the air inlet 52 along the first direction. In this way, the second space 41 and the air inlet 52 can be arranged correspondingly, and the gas in the second space 41 can be easily sucked away by the air inlet 52.

[0166] In some embodiments of the present application, as shown, Figures 33-35 The cabinet body 60 further has a first channel 43. The first channel 43 and the first space 40 are arranged along the first direction, and the first channel 43 is in communication with the first space 40 and / or the third space 42. That is, the first channel 43 is in communication with the first space 40, or the first channel 43 is in communication with the third space 42, or the first channel 43 is in communication with both the first space 40 and the third space 42. The present application takes the first channel 43 in communication with the third space 42 as an example for description. Further, the cabinet body 60 has a base and a top plate which are spaced apart along the first direction. The first channel 43 is located between the top plate and the first space 40. When the energy storage cabinet 200 is in the working state, Figure 33When placed in the middle direction, the first channel 43 is located above the first space 40, and the first channel 43 is connected to the air outlet 51 of the air conditioner 50 and the third space 42. Furthermore, the front end of the first channel 43 is connected to the air outlet 51 of the air conditioner 50, and the rear end of the first channel 43 is connected to the third space 42. When the air conditioner 50 is working, after the cold air is blown out from the air outlet 51 of the air conditioner 50, part of the air blows into the second space 41, and part of the air blows into the first channel 43. After the air blows into the first channel 43, the air in the first channel 43 flows along the first channel 43 into the upper end of the third space 42, and then the cold air flows toward the lower end of the third space 42 to participate in the heat dissipation cycle, thereby achieving the effect of replenishing air for the energy storage module 201, thereby improving the heat dissipation efficiency of the energy storage module 201 and taking away the heat of the energy storage module 201 more quickly.

[0167] In some embodiments of the present invention, Figure 33 and Figure 35 As shown, the end of the first space 40 near the air inlet 52 is opened to form a first opening, and the end of the second space 41 near the air outlet 51 is opened to form a second opening. Figure 35 When placed in the middle orientation, the front end of the first space 40 is open to form a first opening, and the front end of the second space 41 is open to form a second opening. Furthermore, the cabinet 60 includes a cabinet body 61 and an opening and closing door 62. The cabinet body 61 includes a base and a top panel. The cabinet body 61 defines an installation cavity with one end open and a front end open. The installation cavity defines the first space 40, the second space 41, the third space 42, and the first passage 43. The opening and closing door 62 is used to open or close the installation cavity. The air conditioner 50 is mounted in the cabinet 60. Furthermore, the air conditioner 50 is mounted on the opening and closing door 62. Furthermore, a partition 63 is provided in the installation cavity to divide the installation cavity into the first space 40, the second space 41, the third space 42, and the first passage 43. Among them, since the air conditioner 50 is arranged on the opening and closing door 62, the air outlet 51 and the air inlet 52 of the air conditioner 50 are both arranged on the opening and closing door 62, and the end of the first space 40 close to the air inlet 52 is opened, the end of the second space 41 close to the air outlet 51 is opened, and the end of the first channel 43 close to the air inlet 52 is opened, which facilitates the flow of cold air into the second space 41 and the first channel 43, and also facilitates the flow of cold air in the first space 40 into the air inlet 52 of the air conditioner 50.

[0168] Further, the first opening and the second opening are spaced apart by a spacer (not shown in the figure), wherein, in the process of the wind blowing into the second space 41, the wind in the first space 40 flows towards the air inlet 52 of the air conditioner 50, the open end of the first space 40 and the open end of the second space 41 are spaced apart by the spacer, the mutual influence of the inlet and outlet air can be avoided, so that the cold wind can be smoothly blown into the second space 41, the heat-exchanged wind in the first space 40 can be smoothly flowed into the air conditioner 50, and the noise of the energy storage cabinet 200 can be avoided.

[0169] In some embodiments of the present application, the partition 63 is provided with a first communication hole 44. Since the partition 63 divides the mounting cavity into the first space 40, the second space 41, the third space 42 and the first passage 43, the first communication hole 44 is arranged on the partition 63, so as to facilitate the communication between the second space 41 and the third space 42 through the first communication hole 44.

[0170] In some embodiments of the present application, the third space 42 is arranged in the third direction of the energy storage cabinet 200, and the third direction is orthogonal to the first direction and the second direction. When the energy storage cabinet 200 is placed in the first direction, the third direction of the energy storage cabinet 200 is the front-rear direction in the figure, and the structure in the energy storage cabinet 200 is more compact. Figure 35 In some embodiments of the present application, the third direction of the energy storage cabinet 200 is the front-rear direction in the figure when the energy storage cabinet 200 is placed in the first direction. Figure 35 In some embodiments of the present application, the third direction of the energy storage cabinet 200 is the front-rear direction in the figure when the energy storage cabinet 200 is placed in the first direction.

[0171] In some embodiments of the present application, as shown in Figure 53 and Figure 54 , the energy storage cabinet 600 can further include a positive power line 1001 and a negative power line 1002, one end of the positive power line 1001 is connected with the control unit 1000, the other end of the positive power line 1001 is adapted to be plugged with the connection terminal 202 of the energy storage module 201, one end of the negative power line 1002 is connected with the control unit 1000, and the other end of the negative power line 1002 is adapted to be plugged with the connection terminal 202 of the energy storage module 201. Specifically, a plurality of energy storage modules 201 are connected in series, one end of the positive power line 1001 is electrically connected with the control unit 1000, the other end of the positive power line 1001 can be electrically connected with the positive connection terminal 2029 of the end energy storage module 201, one end of the negative power line 1002 is electrically connected with the control unit 1000, and the other end of the negative power line 1002 is electrically connected with the negative connection terminal 2030 of the other energy storage module 201 at the end, so as to realize the electrical connection between the control unit 1000 and the energy storage module 201, and achieve the purpose of the control unit 1000 controlling the working of the energy storage module 201.

[0172] ​And the positive power line 1001 and the negative power line 1002 are wire harnesses, the positive power line 1001 and the negative power line 1002 are adjustable in position in the energy storage cabinet 600, the connection end of the positive power line 1001 with the energy storage module 201 and the connection end of the negative power line 1002 with the energy storage module 201 can be appropriately adjusted according to the position of the energy storage module 201 in the energy storage cabinet 600, for example: as shown in Figure 53 When the energy storage cabinet 600 is filled with energy storage modules 201, the positive power line 1001 can be moved to the energy storage module 201 at the end and electrically connected with the positive connection terminal 2029 of the energy storage module 201, and the negative power line 1002 can be moved to the energy storage module 201 at the end and electrically connected with the negative connection terminal 2030 of the energy storage module 201. As shown in Figure 54 When the energy storage cabinet 600 is not filled with energy storage modules 201, the positive power line 1001 can be moved to the energy storage module 201 at the end and electrically connected with the positive connection terminal 2029 of the energy storage module 201, and the negative power line 1002 can be moved to the energy storage module 201 at the end and electrically connected with the negative connection terminal 2030 of the energy storage module 201.

[0173] For users, due to different use scenarios and total power of electrical equipment, the demand for energy of the energy storage cabinet 200 is also different, and the energy storage cabinet 200 needs to be matched with an inverter, and the difference in user demand causes the difference in demand for inverters. Due to the difference in brand and model, the working voltage range of the inverter is also different, so the demand for flexible expansion of voltage is generated. In this application, when different numbers of energy storage modules 201 are assembled in the energy storage cabinet 600, the energy storage modules 201 and the control unit 1000 can be electrically connected by adjusting the positions of the positive power line 1001 and the negative power line 1002, so that the number of energy storage modules 201 in the energy storage cabinet 600 can be flexibly configured, and then energy storage cabinets 600 of different capacities are obtained to meet the different needs of users.

[0174] Further, one end of the positive power line 1001 and one end of the negative power line 1002 are located in the second space 41, and the other end of the positive power line 1001 and the other end of the negative power line 1002 are located in the first space 40. Further, as shown in Figure 53 and Figure 54As shown, the partition 63 is provided with a wire hole 1008 penetrating the partition 63, and the positive power line 1001 and the negative power line 1002 both pass through the wire hole 1008, so that one end of the positive power line 1001 and one end of the negative power line 1002 are both located in the second space 41, and the other end of the positive power line 1001 and the other end of the negative power line 1002 are both located in the first space 40. In this way, the positive power line 1001 and the negative power line 1002 can be connected between the control unit 1000 and the energy storage module 201.

[0175] It should be noted that the positive power line 1001 can be connected with the conductive row 10, and the positive power line 1001 is electrically connected with the energy storage module 201 by plugging the conductive row 10 with the positive connection terminal 2029 of the energy storage module 201. The negative power line 1002 can also be connected with the conductive row 10, and the negative connection terminal 2030 is electrically connected with the energy storage module 201 by plugging the conductive row 10 with the negative connection terminal 2030 of the energy storage module 201.

[0176] As shown in Figures 3-5 , the energy storage module 201 according to the embodiment of the application comprises an energy storage unit 220, a support beam 219, a first side plate 211 and a second side plate 212. The energy storage unit 220 comprises a plurality of battery cells 208 arranged in sequence along the thickness direction of the battery cell 208, and a first air duct 210 is formed between at least two adjacent battery cells 208. The first air duct 210 extends along a third direction, and the third direction is orthogonal to the first direction and the second direction. The first air duct 210 is in communication with the first space 40. When the energy storage unit 220 is placed in the Figure 7 middle direction, the thickness direction of the battery cell 208 refers to the Figure 7 left-right direction. The energy storage unit 220 is arranged between the first side plate 211 and the second side plate 212. As shown in Figure 2 and Figure 4 , the support beam 219 extends along the thickness direction of the battery cell 208, and the support beam 219 connects the first side plate 211 and the second side plate 212 to clamp the energy storage unit 220. Further, the support beam 219 is connected between the first side plate 211 and the second side plate 212 to clamp the energy storage unit 220. At least one side of the energy storage unit 220 in the width direction of the battery cell 208 is provided with the support beam 219. When the energy storage unit 220 is placed in the Figure 2 middle direction, the width direction of the battery cell 208 refers to the Figure 2The upper and lower directions of the energy storage module 201 can be provided with the support beam 219 on the upper side of the energy storage unit 220, or provided with the support beam 219 on the lower side of the energy storage unit 220, or provided with the support beam 219 on both the upper side and the lower side of the energy storage unit 220, and preferably, the support beam 219 is provided on both the upper side and the lower side of the energy storage unit 220.

[0177] As shown in FIG. 1, when the energy storage module 201 is placed in the horizontal direction, the first side plate 211 and the second side plate 212 are respectively arranged on the left side and the right side of the energy storage unit 220, and the present application takes the first side plate 211 arranged on the left side of the energy storage unit 220 and the second side plate 212 arranged on the right side of the energy storage unit 220 as an example for description. Figure 4 Figure 4 The first side plate 211 and the second side plate 212 can clamp the energy storage unit 220, and the energy storage unit 220 can be fixed in the energy storage module 201, so that the energy storage module 201 does not need to be provided with a support for fixing the battery cell 208, the space for arranging the battery cell 208 in the energy storage module 201 is increased, more battery cells 208 can be arranged in the energy storage module 201, the energy density of the energy storage module 201 is improved, and the volume of the energy storage module 201 is smaller under the condition that the energy storage module 201 has the same energy density.

[0178] Therefore, through the cooperation of the energy storage unit 220, the first side plate 211, the second side plate 212 and the support beam 219, the energy storage unit 220 can be clamped, the structure of the energy storage module 201 is simplified, the assembly efficiency of the energy storage module 201 is improved, and the energy storage module 201 does not need to be provided with a support for fixing the battery cell 208, more battery cells 208 can be arranged in the energy storage module 201, the energy density of the energy storage module 201 is improved, and the volume of the energy storage module 201 is smaller under the condition that the energy storage module 201 has the same energy density.

[0179] In some embodiments of the present application, as shown in FIG. 1, the energy storage module 201 is provided with the support beam 219 on both the upper side and the lower side of the energy storage unit 220. Figure 1 Figure 3 ​​As shown, the energy storage module 201 may further include: a top cover 213 and a bottom cover 214. In the width direction of the battery cell 208, the top cover 213 and the bottom cover 214 are respectively located on both sides of the energy storage unit 220. Figure 1 When placed in the middle direction, Figure 1 In the up and down directions, the top cover 213 is arranged on the upper side of the energy storage unit 220, the bottom cover 214 is arranged on the lower side of the energy storage unit 220, and the multiple battery cells 208 are arranged between the first side plate 211 and the second side plate 212, and the top cover 213 and the bottom cover 214 are both connected to the first side plate 211 and the second side plate 212. Further, the top cover 213 and the bottom cover 214 are both connected between the first side plate 211 and the second side plate 212, or the first side plate 211 and the second side plate 212 are both connected between the top cover 213 and the bottom cover 214. Preferably, the top cover 213 and the bottom cover 214 are both connected between the first side plate 211 and the second side plate 212. A second air duct 216 is formed between the surface of the energy storage unit 220 close to the top cover 213 and the top cover 213 and / or between the surface of the energy storage unit 220 close to the bottom cover 214 and the bottom cover 214 by the separating effect of the support beam 219. That is to say, the second air duct 216 can be formed between the surface of the energy storage unit 220 close to the top cover 213 and the top cover 213 by the separating effect of the support beam 219, or the second air duct 216 can be formed between the surface of the energy storage unit 220 close to the bottom cover 214 and the bottom cover 214 by the separating effect of the support beam 219. The second air duct 216 can also be formed between the surface of the energy storage unit 220 close to the top cover 213 and the top cover 213, and between the surface of the energy storage unit 220 close to the bottom cover 214 and the bottom cover 214. Preferably, the second air duct 216 is formed between the surface of the energy storage unit 220 close to the top cover 213 and the top cover 213, and between the surface of the energy storage unit 220 close to the bottom cover 214 and the bottom cover 214. In other words, a second air duct 216 is formed between the top cover 213 and the battery cell 208 and / or between the bottom cover 214 and the battery cell 208. Preferably, a second air duct 216 is formed between the top cover 213 and the battery cell 208 and between the bottom cover 214 and the battery cell 208, and the second air duct 216 is connected to the first space 40.

[0180] Specifically, the support beams 219 are arranged between the surface of the energy storage unit 220 close to the top cover 213 and the top cover 213, and between the surface of the energy storage unit 220 close to the bottom cover 214 and the bottom cover 214. The support beam 219 between the energy storage unit 220 and the top cover 213 separates the energy storage unit 220 and the top cover 213 to form the second air duct 216 between the energy storage unit 220 and the top cover 213. The support beam 219 between the energy storage unit 220 and the bottom cover 214 separates the energy storage unit 220 and the bottom cover 214 to form the second air duct 216 between the energy storage unit 220 and the bottom cover 214. Wherein, the external gas of the energy storage module 201 can flow into the second air duct 216, and the gas flowing into the second air duct 216 can exchange heat with the energy storage unit 220, and then the gas will flow out of the energy storage module 201, thereby taking away the heat of the battery cell 208 to achieve the cooling effect and improve the heat dissipation efficiency of the battery cell 208. Moreover, by arranging the second air duct 216 between the energy storage unit 220 and the top cover 213 and between the energy storage unit 220 and the bottom cover 214, the temperature difference of the two sides of a single battery cell 208 can be controlled within 4 degrees, and the temperature difference of each region of the battery cell 208 can be more balanced.

[0181] In some embodiments of the present application, as shown in Figure 2 , Figure 4 and Figure 5 , the support beam 219 contacts the surface of the energy storage unit 220 close to the top cover 213 and the top cover 213, and / or the support beam 219 contacts the surface of the energy storage unit 220 close to the bottom cover 214 and the bottom cover 214 to divide the second air duct 216 into a plurality of sub-air ducts 217, and the support beam 219 has a wind passage 218 communicating with two adjacent sub-air ducts 217. Further, when the energy storage module 201 is placed in the direction of Figure 1 , the support beam 219 between the energy storage unit 220 and the top cover 213 contacts the upper surface of the energy storage unit 220 and the top cover 213, and the support beam 219 between the energy storage unit 220 and the bottom cover 214 contacts the lower surface of the energy storage unit 220 and the bottom cover 214. The support beam 219 between the energy storage unit 220 and the top cover 213 can divide the second air duct 216 into a plurality of sub-air ducts 217, and the support beam 219 between the energy storage unit 220 and the bottom cover 214 can divide the second air duct 216 into a plurality of sub-air ducts 217. The plurality of sub-air ducts 217 between the energy storage unit 220 and the top cover 213 are arranged in the length direction of the battery cell 208 in sequence, and the plurality of sub-air ducts 217 between the energy storage unit 220 and the bottom cover 214 are arranged in the length direction of the battery cell 208 in sequence.

[0182] After the external air of the energy storage module 201 flows into the sub-air duct 217, the air can flow into the adjacent sub-air duct 217 through the air passage 218. During the air flow process, the air can exchange heat with the battery cell 208, taking away the heat of the battery cell 208, and finally the air will flow out of the energy storage module 201. In addition, the support beam 219 contacts the energy storage unit 220. The support beam 219 located below the energy storage unit 220 can support the energy storage unit 220. At the same time, the support beam 219 located below the energy storage unit 220 and the support beam 219 located above the energy storage unit 220 clamp the energy storage unit 220, so that the energy storage unit 220 is firmly assembled in the energy storage module 201.

[0183] Furthermore, if Figure 2 and Figure 4 As shown, a plurality of support beams 219 may be provided between the energy storage unit 220 and the top cover 213. The plurality of support beams 219 between the energy storage unit 220 and the top cover 213 extend in the length direction of the battery cell 208 (i.e. Figure 4 At the same time, a plurality of support beams 219 may also be provided between the energy storage unit 220 and the bottom cover 214. The plurality of support beams 219 between the energy storage unit 220 and the bottom cover 214 are spaced apart in sequence in the length direction of the battery cell 208. The energy storage unit 220 is clamped simultaneously by the plurality of support beams 219, and the first side plate 211 and the second side plate 212 clamp the energy storage unit 220, so that the energy storage unit 220 can be more firmly assembled in the energy storage module 201, and the first side plate 211 and the second side plate 212 can also firmly clamp the energy storage unit 220.

[0184] In some embodiments of the present invention, Figure 4 As shown, the support beam 219 spans all the battery cells 208 along the thickness direction of the battery cells 208. Figure 4 As shown, the leftmost end of the support beam 219 is connected to the first side plate 211, and the rightmost end of the support beam 219 is connected to the second side plate 212. The support beam 219 spans all the battery cells 208 along the thickness direction of the battery cells 208 and is connected to the first side plate 211 and the second side plate 212, so that the first side plate 211 and the second side plate 212 can reliably clamp the energy storage unit 220.

[0185] In some embodiments of the present invention, Figure 5As shown, the first side plate 211 is provided with a limiting boss 221 protruding towards the energy storage unit 220 near the inner surface of the energy storage unit 220, and / or the second side plate 212 is provided with a limiting boss 221 protruding towards the energy storage unit 220 near the inner surface of the energy storage unit 220. It can also be understood that the limiting boss 221 can be arranged on the first side plate 211 near the inner surface of the energy storage unit 220, or on the second side plate 212 near the inner surface of the energy storage unit 220, or on the first side plate 211 near the inner surface of the energy storage unit 220 and on the second side plate 212 near the inner surface of the energy storage unit 220. After the supporting beam 219, the first side plate 211 and the second side plate 212 are assembled, the limiting boss 221 can extrude the energy storage unit 220, so that the energy storage unit 220 is fixed in the energy storage module 201.

[0186] Further, the supporting beam 219 is lapped on the limiting boss 221. Specifically, as shown in Figure 5 The two ends of the supporting beam 219 between the energy storage unit 220 and the top cover 213 are respectively lapped on the upper surfaces of the limiting bosses 221 of the first side plate 211 and the second side plate 212. The limiting boss 221 supports the supporting beam 219 between the energy storage unit 220 and the top cover 213, so that the supporting beam 219 can be reliably assembled with the first side plate 211 and the second side plate 212. The two ends of the supporting beam 219 between the energy storage unit 220 and the bottom cover 214 are respectively lapped on the lower surfaces of the limiting bosses 221 of the first side plate 211 and the second side plate 212. The limiting boss 221 supports the supporting beam 219 between the energy storage unit 220 and the bottom cover 214, so that the supporting beam 219 between the energy storage unit 220 and the bottom cover 214 can be prevented from being excessively extruded.

[0187] In some embodiments of the present application, as shown in Figure 5 The limiting boss 221 is formed with a third air duct 222. The third air duct 222 extends in the length direction of the battery cell 208. Since the limiting boss 221 is in contact with the energy storage unit 220, the gas flowing into the third air duct 222 can exchange heat with the energy storage unit 220. When the gas flows along the third air duct 222, the gas can continuously take away the heat of the energy storage unit 220, so that the energy storage unit 220 can be cooled.

[0188] In some embodiments of the present application, as shown in Figure 5As shown, the first side plate 211 and the second side plate 212 are both provided with mounting holes 223 for assembling the support beam 219, and the axis of the mounting hole 223 extends in the thickness direction of the battery cell 208. The mounting hole 223 on the first side plate 211 penetrates the first side plate 211 in the thickness direction of the first side plate 211, and the mounting hole 223 on the second side plate 212 penetrates the second side plate 212 in the thickness direction of the second side plate 212. The first fastener 224 passes through the mounting hole 223 and cooperates with the support beam 219 to enable the first side plate 211 and the second side plate 212 to clamp the energy storage unit 220. Among them, there are multiple first fasteners 224 and mounting holes 223, and the multiple mounting holes 223 and the multiple first fasteners 224 are arranged in a one-to-one correspondence. The first fasteners 224 can be bolts or screws. The first fasteners 224 pass through the corresponding mounting holes 223 from the outside of the first side panel 211 and the second side panel 212 and are threadedly connected to the support beam 219, thereby fixing the first side panel 211 and the second side panel 212, and then the first side panel 211 and the second side panel 212 clamp the energy storage unit 220.

[0189] In some embodiments of the present invention, Figure 7 and Figure 8 As shown, the energy storage module 201 may further include: a heat sink 209, a heat sink 209 is provided between at least two adjacent battery cells 208 in the plurality of battery cells 208, the heat sink 209 contacts the adjacent battery cells 208, and the heat sink 209 defines a first air duct 210 extending along the length direction of the battery cells 208. Figure 7 When placed in the middle direction, the length direction of the battery cell 208 is Figure 7 In the front-to-back direction, this arrangement enables the contact surface between the heat sink 209 and the battery cell 208 to be the largest surface of the battery cell 208, thereby improving the heat dissipation effect of the heat sink 209 on the battery cell 208. Furthermore, gas (e.g., cold air) can flow into the first air duct 210 after exiting the energy storage module 201. As the cold air flows along the first air duct 210, it exchanges heat with the battery cell 208, removing the heat from the battery cell 208 and achieving the effect of cooling the battery cell 208. After the air in the first air duct 210 flows out of the first air duct 210, it can flow out of the energy storage module 201, thereby discharging the heat from the energy storage module 201.

[0190] Furthermore, the first air duct 210 is connected to the first space 40. After the cold air flows into the first space 40 from the third space 42, the cold air can flow into the first air duct 210. When the cold air flows along the first air duct 210, it exchanges heat with the battery cell 208, takes away the heat of the battery cell 208, and achieves the effect of cooling the battery cell 208. After the wind in the first air duct 210 flows out of the first air duct 210, the wind can flow into the air conditioner 50 from the air inlet 52 of the air conditioner 50.

[0191] In some embodiments of the present invention, Figure 5、 Figure 7 and Figure 8 As shown in Figure 7 and Figure 7 , the heat dissipation member 209 can define a plurality of first air ducts 210 arranged in sequence along the width direction of the battery cell 208. When the energy storage module 201 is placed in the Figure 7 direction, the width direction of the battery cell 208 refers to the up-down direction in Figure 7 . Such arrangement can make the gas flow smoothly in different first air ducts 210, avoid vortex of the gas in the heat dissipation member 209, so as to ensure the gas flow speed, facilitate the gas to flow out of the heat dissipation member 209, thereby quickly take away the heat of the battery cell 208, and also avoid noise in the heat dissipation member 209.

[0192] In some embodiments of the present application, as shown in Figure 7 and Figure 8 , the plurality of battery cells 208 form a plurality of battery cell groups, each battery cell group can include at least one battery cell 208, and further, as shown in Figure 7 , each two battery cells 208 form a battery cell group, and the two battery cells 208 at the end form a battery cell group respectively, and the heat dissipation member 209 is arranged between the adjacent two battery cell groups. Such arrangement can ensure that each battery cell 208 is in contact with at least one heat dissipation member 209, so that each battery cell 208 has at least one heat dissipation member 209 to dissipate heat, and also can make the heat dissipation member 209 fit the side surface of the battery cell 208 with larger area, increase the heat dissipation area of the battery cell 208, and reduce the temperature difference of each region of the battery cell 208. At the same time, through such arrangement of the plurality of battery cells 208 and the heat dissipation member 209, the heat dissipation member 209 can support the battery cell 208, and can improve the structural stability and safety of the energy storage module 201.

[0193] In some embodiments of the present application, as shown in Figure 4 and Figure 12 , the energy storage module 201 can further include a driving fan 2061. The driving fan 2061 is arranged at one end of the energy storage unit 220 in the length direction of the battery cell 208, and the driving fan 2061 is arranged spaced apart from the energy storage unit 220. The driving fan 2061 is used to drive the gas to flow in the first air duct 210 along the first air duct 210. Further, as shown in Figure 4 , when the energy storage module 201 is placed in the Figure 4When placed in the middle direction, the driving fan 2061 is arranged at the front end of the energy storage unit 220, and the type of the driving fan 2061 can be selected according to the specific heat dissipation requirement. When the driving fan 2061 works, the blades of the driving fan 2061 rotate. Under the driving of the driving fan 2061, the gas in the first air duct 210 flows along the first air duct 210 towards the driving fan 2061, and the heat generated by the battery cell 208 is taken away by the gas flow. The gas taken away by the driving fan 2061 is finally discharged to the outside of the energy storage module 201. By arranging the driving fan 2061, the gas flow speed in the first air duct 210 can be increased, and the heat of the battery cell 208 can be taken away more quickly, so that the heat exchange efficiency of the heat dissipation member 209 can be improved.

[0194] Further, the air conditioner 50 can be realized by other forms of air blowers, which need to be connected to the battery management system as the air conditioner, and the air blower needs to be located inside the cabinet 60 and outside the driving fan 2061.

[0195] In some embodiments of the present application, as shown in Figure 4 and Figure 6 , the driving fan 2061 can be arranged in multiple numbers, and the multiple driving fans 2061 are arranged in sequence and spaced apart along the thickness direction of the battery cell 208. It should be noted that the number of driving fans 2061 is positively correlated with the number of battery cells 208 arranged in the energy storage module 201, that is, the more the number of battery cells 208 arranged in the energy storage module 201, the more the number of driving fans 2061 arranged, and the less the number of battery cells 208 arranged in the energy storage module 201, the less the number of driving fans 2061 arranged. The present application takes the energy storage module 201 arranged with two driving fans 2061 as an example for description. By arranging multiple driving fans 2061, the coverage area of the driving fan 2061 can be increased, and the gas flow of the first air duct 210 of each heat dissipation member 209 in the energy storage module 201 can be ensured to be improved, so that the heat dissipation efficiency of the energy storage module 201 can be further improved.

[0196] In some embodiments of the present application, as shown in Figure 6 , along the thickness direction of the battery cell 208, the interval distance A between any two adjacent driving fans 2061 satisfies the relationship: 90mm≤A≤100mm, for example: the interval distance between the two adjacent driving fans 2061 is 98mm. By making the interval distance A between the two adjacent driving fans 2061, along the thickness direction of the battery cell 208, that is, the left-right direction in Figure 6 , it can be ensured that the driving fan 2061 can drive the gas flow in the first air duct 210 between the two driving fans 2061, and the heat of the battery cell 208 can be taken away more quickly, so as to ensure the heat exchange efficiency of the heat dissipation member 209.

[0197] In some embodiments of the present application, as shown in Figure 6 the interval distance between the center of one of the two adjacent driving fans 2061 and the center of the other driving fan 2061 in the thickness direction of the battery cell 208 is B, which satisfies the relationship: 180mm≤B≤200mm, for example, the interval distance between the center of one of the two adjacent driving fans 2061 and the center of the other driving fan 2061 is 190mm. Such arrangement can further ensure that the driving fan 2061 can drive the gas flow in the first air duct 210 between the two driving fans 2061, and the heat of the battery cell 208 can be carried away more quickly, thereby further ensuring the heat exchange efficiency of the heat dissipation member 209.

[0198] In some embodiments of the present application, as shown in Figure 6 the interval distance between the driving fan 2061 and the battery cell 208 in the length direction of the battery cell 208 is C, which satisfies the relationship: 40mm≤C≤50mm, for example, the interval distance between the driving fan 2061 and the battery cell 208 is 45.6mm. Further, the interval distance between the driving fan 2061 and the heat dissipation member 209 in the length direction of the battery cell 208 is also C. Such arrangement can further ensure that the driving fan 2061 can drive the gas flow in the first air duct 210 between the two driving fans 2061, and the heat of the battery cell 208 can be carried away more quickly, thereby further ensuring the heat exchange efficiency of the heat dissipation member 209, so that the interval size between the driving fan 2061 and the battery cell 208 and between the driving fan 2061 and the heat dissipation member 209 is appropriate.

[0199] In some embodiments of the present application, as shown in Figure 6 the interval distance between the surface of the outermost heat dissipation member 209 away from the driving fan 2061 and the adjacent driving fan 2061 in the thickness direction of the battery cell 208 is D, which satisfies the relationship: 60mm≤D≤70mm, for example, the interval distance between the surface of the outermost heat dissipation member 209 away from the driving fan 2061 and the adjacent driving fan 2061 is 65.2mm. Such arrangement can ensure that the gas in each first air duct 210 is driven to flow by the driving fan 2061, which can improve the temperature consistency of each region of the energy storage module 201, thereby making the heat dissipation of the energy storage module 201 uniform.

[0200] It should be noted that the larger the size of the driving fan 2061, the greater the air flow speed in the first air duct 210. In the width direction of the battery cell 208, the size of the driving fan 2061 is greater than or equal to the width size of the battery cell 208. At this time, the size of the driving fan 2061 in the width direction of the battery cell 208 reaches 100% of the coverage rate of the battery cell 208, and the working area of the driving fan 2061 is circular, so that the maximum air flow in the first air duct 210 can be achieved, and the heat dissipation effect of the energy storage module 201 is ensured. Further, in the width direction of the energy storage module 201, the size of the driving fan 2061 accounts for 40%-50% of the width size of the energy storage module 201, for example, the size of the driving fan 2061 accounts for 44.62% of the width size of the energy storage module 201.

[0201] In some embodiments of the present application, in the thickness direction of the battery cell 208, the side surface (i.e. the large surface) area of the battery cell 208 is S1, and the contact area of the heat dissipation piece 209 with the adjacent battery cell 208 is S2, which satisfies the relationship: 0.90≤S2 / S1≤1, for example: S2 / S1 is 0.97. Such a setting can ensure the contact area of the heat dissipation piece 209 with the adjacent battery cell 208, and can improve the heat exchange efficiency of the heat dissipation piece 209 with the battery cell 208.

[0202] In some embodiments of the present application, as shown in Figure 4 and Figure 12 The energy storage module 201 can further include a heat dissipation end plate 206, and the driving fan 2061 is installed on the heat dissipation end plate 206. The heat dissipation end plate 206 is fixedly connected with the first side plate 211 and / or the second side plate 212. It can also be understood that the heat dissipation end plate 206 can be connected with the first side plate 211, or the heat dissipation end plate 206 can be connected with the second side plate 212, or the heat dissipation end plate 206 can be fixedly connected with both the first side plate 211 and the second side plate 212. As shown in Figure 1 The heat dissipation end plate 206 is installed at the front end of the first side plate 211 and the second side plate 212, and the heat dissipation end plate 206 is connected with both the first side plate 211 and the second side plate 212. The heat dissipation end plate 206 can be installed on the first side plate 211 and the second side plate 212 by bolts. Further, the heat dissipation end plate 206 is spaced apart from the energy storage unit 220. By installing the driving fan 2061 on the heat dissipation end plate 206, the gas in the first air duct 210 can move along the first air duct 210 towards the front of the energy storage module 201, and the driving fan 2061 can be reliably arranged in the energy storage module 201.

[0203] Further, as shown in Figures 19-21 , Figure 1As shown, the energy storage module 201 may further include: a connecting piece 2083 and a busbar mounting frame 2084. In the longitudinal direction of the battery cell 208, the two ends of the battery cell 208 are respectively provided with a positive pole and a negative pole. The connecting piece 2083 is connected between the positive pole and the negative pole of two adjacent battery cells 208 to achieve electrical connection between the two adjacent battery cells 208. The busbar mounting frame 2084 is provided between the heat dissipation end plate 206 and the energy storage unit 220. The connecting piece 2083 is installed on the busbar mounting frame 2084. The busbar mounting frame 2084 is provided between the heat dissipation end plate 206 and the energy storage unit 220. The frame 2084 can be fixedly mounted on the first side panel 211 and the second side panel 212. For example, the bus mounting frame 2084 can be mounted on the first side panel 211 and the second side panel 212 by bolts. The bus mounting frame 2084 can also be snapped onto the first side panel 211 and the second side panel 212. The specific assembly form is not specifically limited. The heat dissipation end plate 206 can be detachably mounted on the bus mounting frame 2084, thereby indirectly mounting the heat dissipation end plate 206 on the first side panel 211 and the second side panel 212.

[0204] In some embodiments of the present invention, Figure 4 and Figure 2 As shown, the energy storage module 201 may further include: a fixing plate 2065, the fixing plate 2065 being mounted on the first side plate 211 and / or the second side plate 212, that is, the fixing plate 2065 may be mounted on the first side plate 211, the fixing plate 2065 may also be mounted on the second side plate 212, or the fixing plate 2065 may be mounted on the first side plate 211 and the second side plate 212 at the same time. Further, the portion where the fixing plate 2065 is connected to the side plate is configured as a flat plate structure, as shown in FIG. Figure 4 and Figure 1 As shown, the fixing plate 2065 may be provided with a handle 2066. Furthermore, the end of the fixing plate 2065 away from the side plate is provided with a handle 2066. The portion where the fixing plate 2065 and the handle 2066 are connected is constructed as a flat plate. When the energy storage module 201 needs to be taken or placed, the worker can lift the energy storage module 201 by grabbing the handle 2066, thereby facilitating the transportation of the energy storage module 201. In some embodiments of the present invention, the heat dissipation end plate 206 may be fixedly connected to the fixing plate 2065, and the heat dissipation end plate 206 may be mounted to the fixing plate 2065 using bolts.

[0205] Further, if Figure 1 As shown, the energy storage module 201 may further include: a fixing bracket 2067, the fixing bracket 2067 is installed on the first side plate 211 and / or the second side plate 212, preferably, the first side plate 211 and the second side plate 212 are both provided with a fixing bracket 2067, the fixing bracket 2067 is located between the fixing plate 2065 and the heat dissipation end plate 206, the fixing bracket 2067 is located on the inner side of the fixing plate 2065, and the fixing bracket 2067 is used to limit the heat dissipation end plate 206.Figure 4 and Figure 14 As shown in and

[0206] Further, as shown in Figure 4 , the fixing support 2067 is provided with a plug-in column 2085, the first side plate 211 and the second side plate 212 are both provided with a plug-in hole 2086, when the fixing support 2067 is assembled with the first side plate 211, the plug-in column 2085 is inserted into the plug-in hole 2086 of the first side plate 211, then the fixing support 2067 and the first side plate 211 are fixed by bolts, when the fixing support 2067 is assembled with the second side plate 212, the plug-in column 2085 is inserted into the plug-in hole 2086 of the second side plate 212, then the fixing support 2067 and the second side plate 212 are fixed by bolts, such a setting can stably install the fixing support 2067 on the first side plate 211 and the second side plate 212, and facilitate the disassembly and assembly of the fixing support 2067.

[0207] In some embodiments of the present application, as shown in Figure 13 and Figure 4 , the heat dissipation end plate 206 is provided with a positive electrode connecting terminal 2029 and a negative electrode connecting terminal 2030, the positive electrode connecting terminal 2029 is connected with the total positive output pole of the energy storage unit 220, and the negative electrode connecting terminal 2030 is connected with the total negative output pole of the energy storage unit 220. Further, in the thickness direction of the battery cell 208, the positive electrode connecting terminal 2029 and the negative electrode connecting terminal 2030 are arranged close to the same side of the heat dissipation end plate 206, for example, as shown in Figure 4As shown, the positive connection terminal 2029 and the negative connection terminal 2030 are arranged close to the left side of the heat dissipation end plate 206. When the energy storage module 201 is stacked in the energy storage cabinet, by arranging the positive connection terminal 2029 and the negative connection terminal 2030 on the same side of the heat dissipation end plate 206, the positive connection terminal 2029 of one of the two adjacent energy storage modules 201 and the negative connection terminal 2030 of the other energy storage module 201 can be connected, which can reduce the length of the conductive row 10 connected between the positive connection terminal 2029 and the negative connection terminal 2030. Further, the conductive row 10 is inserted and connected with the positive connection terminal 2029 and the negative connection terminal 2030.

[0208] In some embodiments of the present application, as shown in Figure 13 and Figure 4 As shown, the heat dissipation end plate 206 can define a mounting groove 2063a, and the positive connection terminal 2029 and the negative connection terminal 2030 are arranged in the mounting groove 2063a. Further, the mounting groove 2063a is recessed from the outer surface of the heat dissipation end plate 206 towards the inside of the heat dissipation end plate 206. By arranging the positive connection terminal 2029 and the negative connection terminal 2030 in the mounting groove 2063a, the positive connection terminal 2029 and the negative connection terminal 2030 can be hidden in the mounting groove 2063a, avoiding interference of the positive connection terminal 2029 and the negative connection terminal 2030 protruding from the outer surface of the heat dissipation end plate 206 with other components.

[0209] In some embodiments of the present application, as shown in Figure 13 and Figure 13 As shown, the heat dissipation end plate 206 further defines a fool-proof groove 203, which is in communication with the mounting groove 2063a and is used for wiring (such as the conductive row 10). Further, the fool-proof groove 203 includes a first groove segment 20641, a second groove segment 20642 and a third groove segment 20643. The first groove segment 20641 and the second groove segment 20642 extend in the height direction of the energy storage module 201, the second groove segment 20642 extends in the width direction of the energy storage module 201, one end of the second groove segment 20642 is in communication with the first groove segment 20641, and the other end of the second groove segment 20642 is in communication with the third groove segment 20643, the third groove segment 20643 is in communication with the mounting groove 2063a, and the shape of the conductive row 10 is adapted to the shape of the fool-proof groove 203. As shown in Figure 4As shown, the positive connection terminal 2029 can be located on the left side of the negative connection terminal 2030. When multiple energy storage modules 201 are stacked in sequence, the conductive bar 10 is connected between two adjacent energy storage modules 201, and the lower end of the conductive bar 10 is plug-connected to the positive connection terminal 2029 of the energy storage module 201 located below, and the upper end of the conductive bar 10 is plug-connected to the negative connection terminal 2030 of the energy storage module 201 located above, thereby realizing electrical connection between the two adjacent energy storage modules 201. Furthermore, by locating the conductive bar 10 in the foolproof groove 203, the foolproof groove 203 can guide the conductive bar 10, thereby preventing the conductive bar 10 from being installed incorrectly (for example, the upper end of the conductive bar 10 and the negative electrode connection terminal 2030 of the energy storage module 201 located above, and the lower end of the conductive bar 10 and the negative electrode connection terminal 2030 of the energy storage module 201 located below). At the same time, hiding the conductive bar 10 in the foolproof groove 203 can prevent the conductive bar 10 from interfering with other components, thereby ensuring the reliability of the assembly of the conductive bar 10 with the positive electrode connection terminal 2029 and the negative electrode connection terminal 2030.

[0210] Furthermore, the heat dissipation end plate 206 can also define a wiring groove 2064, which is connected to the installation groove 2063a. The anti-mute groove 203 and the wiring groove 2064 are respectively located on both sides of the installation groove 2063a. Further, when the energy storage module 201 is connected to the installation groove 2063a, Figure 22 When placed in the middle orientation, the wiring groove 2064 is located above the mounting groove 2063a, and the anti-mash groove 203 is located below the mounting groove 2063a. The wiring groove 2064 is located corresponding to the positive connection terminal 2029, and the anti-mash groove 203 is located corresponding to the negative connection terminal 2030. When multiple energy storage modules 201 are stacked in sequence, the conductive bar 10 is connected between two adjacent energy storage modules 201. The lower end of the conductive bar 10 is plugged into and connected to the positive connection terminal 2029 of the energy storage module 201 located below and is located within the wiring groove 2064 of the energy storage module 201. The upper end of the conductive bar 10 is plugged into and connected to the negative connection terminal 2030 of the energy storage module 201 located above and is located within the anti-mash groove 203 of the energy storage module 201, thereby connecting the two energy storage modules 201 in series. The wiring groove 2064 is used to avoid the conductive bar 10. The conductive bar 10 is hidden in the wiring groove 2064 to avoid interference with other components. The anti-mistake groove 203 and the wiring groove 2064 can both limit the conductive bar 10.

[0211] In some embodiments of the present application, the energy storage module 201 can further comprise a temperature detection member for collecting the temperature of the energy storage unit 220, which is preferably a temperature sensor. The driving fan 2061 and the temperature detection member are both adapted to be connected to the battery management system of the energy storage module 201, and the battery management system is configured to control the rotation speed of the driving fan 2061 by receiving the temperature information collected by the temperature detection member, i.e., the battery management system is configured to control the working mode of the driving fan 2061 by receiving the temperature information detected by the temperature detection member.

[0212] In some embodiments of the present application, the energy storage module 201 can further comprise a temperature detection member for collecting the temperature of the energy storage unit 220, which is preferably a temperature sensor. The driving fan 2061 and the temperature detection member are both adapted to be connected to the battery management system of the energy storage module 201, and the battery management system is configured to control the rotation speed of the driving fan 2061 by receiving the temperature information collected by the temperature detection member, i.e., the battery management system is configured to control the working mode of the driving fan 2061 by receiving the temperature information detected by the temperature detection member.

[0213] Further, as shown in Figure 1 , the energy storage module 201 can further comprise an information collector 2062 (BIC), which can be connected between the temperature detection member and the battery management system, and the temperature information detected by the temperature detection member is transmitted to the battery management system through the information collector 2062. In addition, the driving fan 2061 is electrically connected to the information collector 2062 through a wire harness, and obtains power from the outside through the information collector 2062, so as to rotate the driving fan 2061.

[0214] In some embodiments of the present application, as shown in Figure 2 , Figure 32 and Figure 1 , the energy storage module 201 can further comprise a ventilation panel 207, which is arranged on the side of the driving fan 2061 away from the energy storage unit 220, and the ventilation panel 207 is provided with an air outlet hole 20722. As shown in Figure 1As shown, the ventilation panel 207 and the heat dissipation end plate 206 are arranged on the front side of the energy storage unit 220, the heat dissipation end plate 206 is located between the ventilation panel 207 and the energy storage unit 220, the ventilation panel 207 is installed on the heat dissipation end plate 206, further, the ventilation panel 207 can be installed on the heat dissipation end plate 206 by magnetic attraction, the ventilation panel 207 can also be installed on the heat dissipation end plate 206 by bolts, and the specific assembly mode of the ventilation panel 207 and the heat dissipation end plate 206 is selected according to the actual situation. When the driving fan 2061 works, the fan blades of the driving fan 2061 rotate, under the driving of the driving fan 2061, the gas in the first air duct 210 flows along the first air duct 210 towards the direction of the driving fan 2061, the heat generated by the battery cell 208 is taken away by the gas flow, and the gas taken away by the driving fan 2061 is finally discharged to the outside of the energy storage module 201 through the air outlet hole 20722 on the ventilation panel 207, realizing the function of dissipating hot air. And the ventilation panel 207 can also shield the driving fan 2061 to avoid exposing the driving fan 2061 outside the energy storage module 201.

[0215] In some embodiments of the present application, as shown in Figure 2 and Figure 1 As shown, the energy storage module 201 can also include an end plate 2081 arranged at the other end of the energy storage unit 220 and spaced apart from the energy storage unit 220, the end plate 2081 is connected with the top cover 213 and / or the bottom cover 214, and the end plate 2081 is provided with a first air inlet hole 2082 communicating with the first air duct 210. Wherein, the end plate 2081 can be directly or indirectly connected with the top cover 213 and the bottom cover 214, and the end plate 2081 can be directly assembled with the top cover 213 and the bottom cover 214 by bolts. As shown in Figure 1 The end plate 2081 and the energy storage unit 220 can be provided with a busbar mounting rack 2084, the busbar mounting rack 2084 is directly or indirectly mounted on the first side plate 211 and the second side plate 212, and the busbar mounting rack 2084 is also provided with a connecting piece 2083, the end plate 2081 can be mounted on the top cover 213 and / or the bottom cover 214, so as to indirectly connect the end plate 2081 with the first side plate 211 and the second side plate 212. And by providing the end plate 2081 with the first air inlet hole 2082 communicating with the first air duct 210, the gas can flow into the energy storage module 201 from the first air inlet hole 2082, part of the gas flowing into the energy storage module 201 flows into the heat dissipation piece 209, and the other part of the gas can flow into the second air duct 216, so that the battery cell 208 is surrounded by the gas, thereby improving the heat dissipation efficiency of the battery cell 208.

[0216] Further, the energy storage module 201 is provided with a supplementary air hole 215, and the supplementary air hole 215 is communicated with the first space 40 and the second air duct 216. In the third direction, the supplementary air hole 215 is located in the middle part of the energy storage module 201, and it can also be understood that the supplementary air hole 215 is arranged at the middle part of the energy storage module 201. Specifically, the top cover 213 and the bottom cover 214 are both provided with the supplementary air hole 215, and the supplementary air hole 215 is communicated with the second air duct 216. After the cold air flows into the first space 40, the cold air in the first space 40 can flow into the second air duct 216 through the supplementary air hole 215, so that the battery cell 208 is surrounded by the cold air, thereby further improving the heat dissipation efficiency of the battery cell 208.

[0217] In some embodiments of the present application, as shown in Figure 11 The top cover 213 and / or the bottom cover 214 are provided with a supplementary air hole 215 communicated with the second air duct 216, and preferably, the top cover 213 and the bottom cover 214 are both provided with a supplementary air hole 215 communicated with the second air duct 216. The cold air can flow into the second air duct 216 through the supplementary air hole 215, so that the battery cell 208 is surrounded by the cold air, thereby further improving the heat dissipation efficiency of the battery cell 208.

[0218] In some embodiments of the present application, as shown in Figures 23-31 The battery cell 208 is flat and similar to a blade in appearance, and the battery cell 208 can be a new type of lithium iron phosphate battery. The length of the battery cell 208 is E, which satisfies the relationship: 400mm≤E≤1500mm, the width of the battery cell 208 is F, which satisfies the relationship: 70mm≤F≤150mm, and the thickness of the battery cell 208 is G, which satisfies the relationship: 10mm≤G≤25mm. In this way, the flat battery cell 208 can be arranged in the energy storage module 201, and the energy density of the energy storage module 201 can be improved by arranging the plurality of battery cells 208 along the thickness direction of the battery cell 208.

[0219] According to the energy storage cabinet of the embodiment of the present application, the energy storage module 201 of the above-mentioned embodiments is simple in structure, which improves the assembly efficiency of the energy storage module 201, thereby improving the assembly efficiency of the energy storage cabinet. In addition, the energy storage module 201 does not need to be provided with a bracket for fixing the battery cell 208, and more battery cells 208 can be arranged in the energy storage module 201, thereby improving the energy density of the energy storage module 201 and the energy storage cabinet. In the case that the energy storage module 201 has the same energy density, the volume of the energy storage module 201 and the energy storage cabinet is smaller.

[0220] In some embodiments of the present application, as shown in Figures 23-31As shown, the energy storage cabinet 200 can include an electrical connection assembly 100, the electrical connection assembly 100 is used to electrically connect two energy storage modules 201, and the electrical connection assembly 100 is plug-fitted with the energy storage modules 201, the two energy storage modules 201 are connected through the electrical connection assembly 100, the electrical connection assembly 100 is adapted to be connected between the two energy storage modules 201 to achieve electrical connection between the two energy storage modules 201, so as to connect the two energy storage modules 201 in series or parallel, and the present application takes the electrical connection assembly 100 connected between the two energy storage modules 201 to connect the two energy storage modules 201 in series as an example for description. The energy storage module 201 has a connection terminal 202, and each energy storage module 201 can be provided with two connection terminals 202, one of the two connection terminals 202 is configured as a positive connection terminal 2029 of the energy storage module 201, and the other of the two connection terminals 202 is configured as a negative connection terminal 2030 of the energy storage module 201.

[0221] As shown in the figure, Figures 26-29 The electrical connection assembly 100 includes a conductive row 10 and an insulating cover 20, the conductive row 10 can be provided as a copper row, the conductive row 10 is adapted to be plug-fitted with the adjacent two energy storage modules 201 to electrically connect the two energy storage modules 201, the insulating cover 20 is covered on the conductive row 10 and is adapted to be connected with the energy storage module 201, and the conductive row 10 is adapted to be plug-fitted with the connection terminal 202 to electrically connect the conductive row 10 and the connection terminal 202. The insulating cover 20 is covered on the conductive row 10, the insulating cover 20 can prevent the conductive row 10 from being popped out from the connection terminal 202, and the insulating cover 20 is connected with the connection terminal 202, and the insulating cover 20 is adapted to press against the conductive row 10.

[0222] When the two energy storage modules 201 need to be connected in series, the conductive row 10 is plug-connected with the positive connection terminal 2029 of one of the two energy storage modules 201, and the conductive row 10 is also plug-connected with the negative connection terminal 2030 of the other of the two energy storage modules 201, so as to connect the two energy storage modules 201 in series. In the plug-connection process of the conductive row 10 and the connection terminal 202, the conductive row 10 does not need to be plug-connected with the connection terminal 202 by means of a wrench or the like, which facilitates the butt joint of the conductive row 10 and the connection terminal 202, can improve the assembly efficiency of the conductive row 10 and the connection terminal 202, and can also reduce the installation cost of the conductive row 10 and the connection terminal 202. Meanwhile, the insulating cover 20 is connected with the connection terminal 202, and the insulating cover 20 is pressed against the conductive row 10. By pressing the conductive row 10 against the insulating cover 20, the conductive row 10 and the connection terminal 202 can be reliably plug-connected, the false connection of the conductive row 10 and the connection terminal 202 can be avoided, the generation of arc can be prevented, the use safety of the electric connection assembly 100 can be improved, and the use safety of the energy storage module 201 can also be improved. In addition, the insulating cover 20 is an insulating member, and the insulating cover 20 covers the conductive row 10, so that the conductive row 10 is not exposed, the electric leakage can be avoided, and the high-voltage safety can be improved.

[0223] In some embodiments of the present application, as shown in Figure 31 , Figure 30 The conductive row 10 can include a first sub-conductive row 11, a second sub-conductive row 12 and a third sub-conductive row 13. The first sub-conductive row 11 and the third sub-conductive row 13 are respectively used for plug-connection with the corresponding connection terminal 202. The second sub-conductive row 12 is connected between the first sub-conductive row 11 and the third sub-conductive row 13 to separate the first sub-conductive row 11 and the third sub-conductive row 13, so that an avoiding space 14 is formed between the first sub-conductive row 11 and the second sub-conductive row 12 and between the third sub-conductive row 13 and the second sub-conductive row 12. Each avoiding space 14 is used for arranging one connection terminal 202.

[0224] In some embodiments of the present application, as shown in Figure 31 and Figures 26-29As shown, the energy storage module 201 can be provided with an anti-fumble groove 203, the shape of the anti-fumble groove 203 is consistent with the shape of the conductive row 10, when two energy storage modules 201 need to be connected in series, the first sub-conductive row 11 is connected with the positive electrode connection terminal 2029 of one of the two energy storage modules 201 through plug-in connection, the negative electrode connection terminal 2030 of the energy storage module 201 connected with the first sub-conductive row 11 is located in the avoiding space 14 between the first sub-conductive row 11 and the second sub-conductive row 12, the third sub-conductive row 13 is connected with the negative electrode connection terminal 2030 of the other of the two energy storage modules 201 through plug-in connection, the positive electrode connection terminal 2029 of the energy storage module 201 connected with the third sub-conductive row 13 is located in the avoiding space 14 between the third sub-conductive row 13 and the second sub-conductive row 12, the conductive row 10 is located in the anti-fumble groove 203, the anti-fumble groove 203 limits the conductive row 10 along the length, width and thickness direction of the conductive row 10, such a setting can hide the conductive row 10 in the anti-fumble groove 203, avoid the conductive row 10 being scratched, and facilitate the positioning of the conductive row 10. Moreover, the anti-fumble groove 203 is set as a bent structure matched with the conductive row 10, which can prevent the conductive row 10 from being installed incorrectly, and play an anti-fumble role.

[0225] In some embodiments of the present application, one end of the second sub-conductive row 12 is connected with the first sub-conductive row 11, the other end of the second sub-conductive row 12 is connected with the third sub-conductive row 13, and the first sub-conductive row 11 and the third sub-conductive row 13 extend in directions away from each other. Wherein, as shown in Figure 31 、 Figures 26-28 one end of the second sub-conductive row 12 is connected with one end of the first sub-conductive row 11, the other end of the second sub-conductive row 12 is connected with one end of the third sub-conductive row 13, further, the second sub-conductive row 12 is perpendicular to the first sub-conductive row 11 and the third sub-conductive row 13, such a setting can form an avoiding space 14 between the first sub-conductive row 11 and the second sub-conductive row 12 and between the third sub-conductive row 13 and the second sub-conductive row 12, which can make the arrangement of the first sub-conductive row 11, the second sub-conductive row 12 and the third sub-conductive row 13 reasonable. Moreover, the conductive row 10 can be constructed as a "Z" type structure, by setting the conductive row 10 as a "Z" type structure, and the positive electrode connection terminal 2029 and the negative electrode connection terminal 2030 are drawn out from the same side of the energy storage module 201, which is convenient for the installation and disassembly of the electrical connection assembly 100, and also convenient for the maintenance of the electrical connection assembly 100.

[0226] In some embodiments of the present application, as shown in Figure 23As shown, the conductive row 10 is provided with a positioning clamping groove 15, the positioning clamping groove 15 is suitable for positioning cooperation with the connecting terminal 202, further, the positioning clamping groove 15 penetrates the conductive row 10 in the thickness direction of the conductive row 10. Among them, the first sub-conductive row 11 and the third sub-conductive row 13 are provided with the positioning clamping groove 15, the connecting terminal 202 can be provided with a limiting protrusion 2026, after the conductive row 10 is inserted on the connecting terminal 202, the limiting protrusion 2026 extends into the positioning clamping groove 15 of the conductive row 10, through the cooperation of the limiting protrusion 2026 and the positioning clamping groove 15, the conductive row 10 can be reliably inserted on the connecting terminal 202, the connecting terminal 202 and the conductive row 10 can be prevented from being separated, so as to further avoid the virtual connection of the conductive row 10 and the connecting terminal 202, and also can prevent the conductive row 10 from shaking relative to the connecting terminal 202.

[0227] Further, the first sub-conductive row 11 and the third sub-conductive row 13 are both provided with a plurality of positioning clamping grooves 15, the connecting terminal 202 can be provided with a plurality of limiting protrusions 2026, through the cooperation of the plurality of positioning clamping grooves 15 and the plurality of limiting protrusions 2026, the conductive row 10 can be more reliably inserted on the connecting terminal 202, the connecting terminal 202 and the conductive row 10 can be further prevented from being separated, so as to further avoid the virtual connection of the conductive row 10 and the connecting terminal 202, and also can further prevent the conductive row 10 from shaking relative to the connecting terminal 202.

[0228] In some embodiments of the present application, as shown in Figure 28 、 Figure 29 and Figure 23 As shown, the insulating cover 20 can include: an insulating cover body 21 and a first clamping portion 22, the insulating cover body 21 covers the conductive row 10 and is suitable for pressing against the conductive row 10, in the first direction of the insulating cover 20, when the electrical connection assembly 100 is placed in the Figure 23 direction, the first direction of the insulating cover 20 refers to the left-right direction in the figure, at least one side of the insulating cover body 21 is provided with the first clamping portion 22, preferably, in the first direction, both sides of the insulating cover body 21 are provided with the first clamping portion 22, the first clamping portion 22 is suitable for clamping with the connecting terminal 202. Among them, by providing the first clamping portion 22 on the insulating cover body 21, the insulating cover 20 can be stably installed on the connecting terminal 202, the insulating cover body 21 can reliably press against the conductive row 10, so as to further prevent the virtual connection of the conductive row 10 and the connecting terminal 202, and through the covering of the insulating cover body 21 on the conductive row 10, the insulation protection effect can be achieved, the electrical connection assembly 100 can be prevented from being electrified, and the use safety of the electrical connection assembly 100 can be improved. At the same time, through the clamping of the insulating cover 20 and the connecting terminal 202, the insulating cover 20 and the connecting terminal 202 can be easily disassembled, and the assembly efficiency of the insulating cover 20 and the connecting terminal 202 can be improved.

[0229] In some embodiments of the present invention, in the second direction of the insulating cover 20, when the electrical connection assembly 100 is Figure 23 When placed in the middle direction, the second direction of the insulating cover 20 is Figure 23 In the front-to-back direction, the end of the insulating cover body 21 away from the conductive bar 10 is provided with a shielding portion 23, and the shielding portion 23 is used to shield the conductive bar 10. Figure 27 、 Figure 29 and Figure 23 As shown, the connecting terminal 202 defines a plug-in slot 2023. Figure 27 and Figure 27 As shown, when the electrical connection assembly 100 is Figure 23 When placed in the middle orientation, the upper end of the insertion slot 2023 is open, and in the second direction of the insulating cover 20, both the front and rear ends of the insertion slot 2023 are open. The conductive bar 10 can be inserted into the insertion slot 2023 of the connecting terminal 202 from the open end of the insertion slot 2023 to achieve plug-in mating between the conductive bar 10 and the connecting terminal 202. After the conductive bar 10 is inserted into the insertion slot 2023, the insulating cover 20 is installed on the connecting terminal 202. The shielding portion 23 can shield the open end of the insertion slot 2023 in the second direction, thereby shielding the conductive bar 10 and preventing electrical leakage in the electrical connection assembly 100. Furthermore, the insulating cover 20 can be inserted into the upper end of the slot 2023, limiting the position of the conductive bar 10 and preventing it from popping out of the insertion slot 2023.

[0230] In some embodiments of the present invention, Figures 26-28 、 Figure 31 As shown, the conductive bar 10 is covered with an insulating sleeve 30. The insulating sleeve 30 provides insulation and can be made of insulating rubber. Furthermore, along the length of the conductive bar 10, at least portions of the first sub-conductive bar 11 and the third sub-conductive bar 13 are exposed outside the insulating sleeve 30. By covering the conductive bar 10 with the insulating sleeve 30, leakage of the conductive bar 10 can be prevented, preventing users from experiencing electric shock upon contact with the conductive bar 10, thereby further improving the safety of the electrical connection assembly 100.

[0231] The energy storage module 201 is provided with a connection terminal 202. Multiple energy storage modules 201 are provided in the energy storage cabinet. The multiple energy storage modules 201 are stacked in sequence along the height of the energy storage cabinet. Each energy storage module 201 is provided with two connection terminals 202. The two connection terminals 202 are arranged along the width of the energy storage module 201 and are located at the same end of the energy storage module 201. One of the two connection terminals 202 is configured as the positive connection terminal 2029 of the energy storage module 201, and the other of the two connection terminals 202 is configured as the negative connection terminal 2030 of the energy storage module 201. The electrical connection assembly 100 is used to electrically connect two energy storage modules 201.

[0232] Among them, when it is necessary to connect two energy storage modules 201 in series, the conductive bar 10 is plugged and connected to the positive connection terminal 2029 of one of the two energy storage modules 201, and the conductive bar 10 is also plugged and connected to the negative connection terminal 2030 of the other of the two energy storage modules 201, so as to connect the two energy storage modules 201 in series. During the plugging process of the conductive bar 10 and the connection terminal 202, there is no need to use tools such as a wrench to plug the conductive bar 10 into the connection terminal 202, which facilitates the docking of the conductive bar 10 and the connection terminal 202, can improve the assembly efficiency of the conductive bar 10 and the connection terminal 202, thereby improving the assembly efficiency of the energy storage cabinet, and can also reduce the installation cost of the conductive bar 10 and the connection terminal 202. At the same time, the insulating cover 20 is connected to the connection terminal 202 and presses against the conductive bar 10. This pressure ensures that the conductive bar 10 and the connection terminal 202 are securely connected, preventing any loose connections between the conductive bar 10 and the connection terminal 202, thus preventing arcing. This improves the safety of the electrical connection assembly 100, the energy storage module 201, and thus the energy storage cabinet. Furthermore, the insulating cover 20 is an insulating member that covers the conductive bar 10, preventing the conductive bar 10 from being exposed, thus preventing electrical leakage and improving high-voltage safety.

[0233] In some embodiments of the present invention, Figure 31As shown, the energy storage module 201 is provided with two connection terminals 202, one of the two connection terminals 202 is connected with the conductive row 10, and the other connection terminal 202 is kept away from the conductive row 10. Among them, each energy storage module 201 is provided with two connection terminals 202, one of the two connection terminals 202 of the energy storage module 201 is connected with the conductive row 10, and the other connection terminal 202 is located in the avoiding space 14 formed by the conductive row 10, so that the connection terminal 202 is kept away from the conductive row 10, and the connection terminal 202 is avoided from interfering with the conductive row 10. The two connection terminals 202 are arranged on the same side of the energy storage module 201, and the two connection terminals 202 are arranged close to the same side of the energy storage module 201, which can also be understood that the energy storage module 201 is provided with a positive connection terminal 2029 and a negative connection terminal 2030, and the positive connection terminal 2029 and the negative connection terminal 2030 are arranged close to the same side of the energy storage module 201.

[0234] As shown in Figure 31 , when the electric connection assembly 100 and the connection terminal 202 are placed in the Figure 26 direction, the positive connection terminal 2029 and the negative connection terminal 2030 are arranged close to the same side of the energy storage module 201, for example: the positive connection terminal 2029 and the negative connection terminal 2030 are arranged close to the left side of the energy storage module 201.

[0235] In some embodiments of the present application, as shown in Figure 27 and Figure 27 , the connection terminal 202 can include a conductive elastic sheet 2021 and an insulating terminal body 2022, the terminal body 2022 defines a plug-in slot 2023, the conductive elastic sheet 2021 is arranged in the plug-in slot 2023, and the conductive row 10 is inserted into the plug-in slot 2023 and contacts the conductive elastic sheet 2021. Further, when the electric connection assembly 100 is placed in the Figure 26 direction, the upper end of the plug-in slot 2023 is open, and in the second direction of the insulating cover 20, the front end of the plug-in slot 2023 and the rear end of the plug-in slot 2023 are both open, and the conductive row 10 is pressed into the plug-in slot 2023 of the connection terminal 202 from the open end of the plug-in slot 2023 to make the conductive elastic sheet 2021 and the conductive row 10 contact, thereby realizing the electrical connection between the conductive row 10 and the conductive elastic sheet 2021.

[0236] Further, as shown in Figure 27 and Figure 26As shown, the conductive spring 2021 can include a first conductive spring 2024 and a second conductive spring 2025, the first conductive spring 2024 and the second conductive spring 2025 are oppositely arranged in the first direction of the connecting terminal 202, the first direction of the connecting terminal 202 is consistent with the first direction of the insulating cover 20, and the conductive row 10 is adapted to be inserted between the first conductive spring 2024 and the second conductive spring 2025. Further, the first conductive spring 2024 and the second conductive spring 2025 are both a plurality of, the plurality of first conductive springs 2024 and the plurality of second conductive springs 2025 are sequentially arranged along the second direction of the connecting terminal 202, and the plurality of first conductive springs 2024 and the plurality of second conductive springs 2025 are one-to-one corresponding, the second direction of the connecting terminal 202 is consistent with the second direction of the insulating cover 20. Wherein, after the conductive row 10 is pressed into the insertion slot 2023 of the connecting terminal 202 from the open end of the insertion slot 2023, the conductive row 10 is clamped between the first conductive spring 2024 and the second conductive spring 2025, which ensures that the conductive row 10 can reliably contact the first conductive spring 2024 and the second conductive spring 2025, thereby further avoiding the virtual connection between the conductive row 10 and the connecting terminal 202.

[0237] Further, as shown in Figure 27 and Figure 23 , the conductive row 10 is provided with a positioning clamping groove 15, and at least one of the first conductive spring 2024 and the second conductive spring 2025 has a limiting protrusion 2026, which is adapted to extend into the positioning clamping groove 15 of the conductive row 10. Wherein, the positioning clamping groove 15 can penetrate the conductive row 10 in the thickness direction of the conductive row 10, the first sub-conductive row 11 and the third sub-conductive row 13 are provided with the positioning clamping groove 15, and the first conductive spring 2024 and the second conductive spring 2025 can be provided with the limiting protrusion 2026. After the conductive row 10 is inserted on the connecting terminal 202, the limiting protrusion 2026 extends into the positioning clamping groove 15 of the conductive row 10, and through the cooperation of the limiting protrusion 2026 and the positioning clamping groove 15, the conductive row 10 can be reliably inserted on the connecting terminal 202, which can avoid the separation of the conductive spring 2021 and the conductive row 10, thereby further avoiding the virtual connection between the conductive row 10 and the conductive spring 2021, and also can prevent the conductive row 10 from shaking relative to the connecting terminal 202. Moreover, by extending the limiting protrusion 2026 into the positioning clamping groove 15 of the conductive row 10, it can be judged whether the conductive row 10 is inserted in place.

[0238] In some embodiments of the present application, as shown in Figure 26 and Figure 23As shown, the connecting terminal 202 can further include a conductive piece 2027, which can be provided as a metal piece, connected with the conductive spring 2021 and adapted to be electrically connected with the energy storage module 201. Further, one end of the conductive piece 2027 extends into the insertion slot 2023 and is connected with the conductive spring 2021. When the connecting terminal 202 is mounted on the energy storage module 201, the conductive piece 2027 is connected between the conductive spring 2021 and the energy storage module 201, thereby realizing electrical connection between the connecting terminal 202 and the energy storage module 201.

[0239] In some embodiments of the present application, as shown in Figure 26 and Figure 23 As shown, the insulating cover 20 is provided with a first clamping portion 22, and the connecting terminal 202 is provided with a second clamping portion 2028 adapted to be clamped with the first clamping portion 22 of the insulating cover 20. In the first direction of the connecting terminal 202, the second clamping portion 2028 is provided on both sides of the connecting terminal 202, and the second clamping portion 2028 is connected with the first clamping portion 22 one by one. By clamping the second clamping portion 2028 with the first clamping portion 22, the insulating cover 20 can be easily mounted on the connecting terminal 202, and the insulating cover 20 can also be easily detached from the connecting terminal 202, thereby improving the disassembly efficiency of the insulating cover 20 and the connecting terminal 202. However, the present application is not limited thereto, and the insulating cover 20 and the connecting terminal 202 can also be assembled by a bolt connection mode, and the specific assembly mode of the insulating cover 20 and the connecting terminal 202 can be selected according to actual conditions.

[0240] Further, as shown in Figure 26 and Figure 27 The first clamping portion 22 is one of a clamping hole and a clamping hook, and the second clamping portion 2028 is the other one of the clamping hole and the clamping hook, for example, the first clamping portion 22 is a clamping hole, and the second clamping portion 2028 is a clamping hook. During assembly of the insulating cover 20 and the connecting terminal 202, the insulating cover 20 is pressed so that the clamping hook is clamped into the clamping hole, thereby completing assembly of the insulating cover 20 and the connecting terminal 202. Such a design can simplify the structure of the first clamping portion 22 and the second clamping portion 2028, reduce the production difficulty of the insulating cover 20 and the connecting terminal 202, and improve the production efficiency of the insulating cover 20 and the connecting terminal 202.

[0241] In some embodiments of the present application, in the second direction of the connecting terminal 202, the insertion slot 2023 is open at both ends, the insulating cover body 21 is provided with a shielding portion 23 for shielding the open end of the insertion slot 2023 away from the conductive row 10. When the connecting terminal 202 is mounted on the energy storage module 201, the shielding portion 23 is arranged to shield the open end of the insertion slot 2023 away from the conductive row 10, thereby preventing the conductive row 10 from being exposed to the outside and improving the safety of the energy storage module 201. Figure 23When placed in the middle direction, the upper end of the insertion slot 2023 is open, and in the second direction of the connecting terminal 202, both ends of the insertion slot 2023 are open. The conductive strip 10 is pressed into the insertion slot 2023 of the connecting terminal 202 from the open end of the insertion slot 2023, so that the conductive spring 2021 and the conductive strip 10 are in contact. After the conductive strip 10 is inserted into the insertion slot 2023, the insulating cover 20 is installed on the connecting terminal 202, and the shielding part 23 can shield the open end of the insertion slot 2023, thereby shielding the conductive strip 10, and further preventing the electric connection assembly 100 from leaking electricity.

[0242] Further, as shown in Figure 12 The connecting terminal 202 is provided with a mounting column 2031, which is connected to the energy storage module 201 by a bolt to fix the connecting terminal 202 to the energy storage module 201.

[0243] It should be noted that the plurality of energy storage modules 201 are first installed in the energy storage cabinet, and the plurality of energy storage modules 201 are arranged in the height direction of the energy storage cabinet in sequence, and then the conductive strip 10 is installed in the fool-proof groove 203, and the lower end of the conductive strip 10 is aligned with the connecting terminal 202 of the lower energy storage module 201, and the upper end of the conductive strip 10 is aligned with the connecting terminal 202 of the upper energy storage module 201. Press the conductive strip 10, so that the conductive strip 10 is between the first conductive spring 2024 and the second conductive spring 2025, until the conductive strip 10 cannot be pressed into the insertion slot 2023.

[0244] In some embodiments of the present application, the module assembly comprises: an energy storage module and a ventilation panel 207, the energy storage module comprises an energy storage unit 220 and a heat dissipation end plate 206, wherein:

[0245] The energy storage unit 220 is used for storing and releasing electric energy. The energy storage unit 220 generates heat during charging and discharging. The heat dissipation end plate 206 is arranged on one side of the energy storage unit 220, that is, the heat dissipation end plate 206 can be an end plate on one side of the outside of the energy storage unit 220. The heat dissipation end plate 206 can provide support and protection for the energy storage unit 220. At the same time, the heat dissipation end plate 206 is provided with a driving fan 2061, which can enhance the flow rate of the airflow flowing through the energy storage unit 220, so as to improve the heat dissipation effect of the energy storage unit 220, so that the energy storage unit 220 can work at an appropriate temperature. Preferably, the heat dissipation end plate 206 is arranged on one side of the energy storage unit 220 in the length direction, so as to improve the heat exchange area and time of the airflow and the energy storage unit 220, and improve the heat dissipation effect of the energy storage unit 220.

[0246] The ventilation panel 207 is arranged on the outer side of the heat dissipation end plate 206, that is, the ventilation panel 207 is arranged on the side of the heat dissipation end plate 206 away from the energy storage unit 220. The ventilation panel 207 can be arranged on the heat dissipation end plate 206. The ventilation panel 207 includes a panel frame 2071 and a ventilation grille 2072 fixed to the panel frame 2071. The panel frame 2071 is suitable for being fixed to the heat dissipation end plate 206. The ventilation grille 2072 can be used for ventilation and protection of the heat dissipation end plate 206. The ventilation grille 2072 is arranged in a hollow manner, so that air flow passes through the ventilation grille 2072, ensuring the heat dissipation effect of the energy storage module 201. At the same time, the ventilation grille 2072 can also prevent foreign matters from entering the driving fan 2061 and the energy storage unit 220, so as to ensure the safety and reliability of the energy storage module 201. The foreign matters can be sundries, insects, fingers, etc. In addition, the ventilation grille 2072 can also visually shield the heat dissipation end plate 206, so as to reduce the external exposure of the driving fan 2061 and other electrical elements on the heat dissipation end plate 206, and improve the neatness and aesthetics of the module assembly. In addition, an enterprise LOGO can also be arranged on the ventilation grille 2072, so as to enhance the product recognition of the module assembly.

[0247] It should be noted that, relative to the service life of the energy storage unit 220, the driving fan 2061 is a consumable part. When the driving fan 2061 needs to be repaired or replaced due to failure, the driving fan 2061 on the heat dissipation end plate 206 can be exposed by disassembling the ventilation panel 207. The disassembly direction of the driving fan 2061 on the heat dissipation end plate 206 is located on the side of the heat dissipation end plate 206 away from the energy storage unit 220. In other words, the disassembly direction of the driving fan 2061 is located on the side of the heat dissipation end plate 206 facing the ventilation panel 207. The driving fan 2061 can be repaired or replaced without disassembling the heat dissipation end plate 206, thereby facilitating the maintenance of the module assembly. Figure 7 As shown in FIG. 6, the driving fan 2061 is installed on the side of the heat dissipation end plate 206 away from the energy storage unit 220 through a plurality of second fasteners 20611. The second fasteners 20611 can be bolts.

[0248] According to the module assembly of the embodiment of the present application, one side of the energy storage unit 220 is provided with the heat dissipation end plate 206. The heat dissipation end plate 206 is provided with the driving fan 2061. The ventilation panel 207 is arranged on the outer side of the heat dissipation end plate 206. The ventilation panel 207 can ensure the heat dissipation effect of the module assembly and prevent foreign matters from entering. The ventilation panel 207 can also improve the maintenance convenience of the module assembly, thereby facilitating the market competitiveness of the module assembly.

[0249] In some embodiments of the present application, the hollowing ratio a of the ventilation grille 2072 satisfies the following relationship: a ≥ (μV / v) / S1, wherein μ is a test coefficient, μ satisfies the relationship 0.9 ≤ μ ≤ 1.1, V is the exhaust volume per unit time when the driving fan 2061 is running at full power, v is the maximum wind speed of the driving fan 2061, and S1 is the effective air outlet area of the driving fan 2061, thereby ensuring the ventilation effect of the heat dissipation end plate 206 and making the heat dissipation end plate 206 meet the heat dissipation demand of the energy storage module 201.

[0250] In a specific embodiment of the present application, μ is 1.0, the exhaust volume of the driving fan 2061 when running at full power is 149.50 CFM, 1 CFM = 0.000472 m 3 / s, that is, V is 0.070564 m 3 / s, the maximum wind speed v of the driving fan 2061 is 17 m / s, and the effective air outlet area of the driving fan 2061 is L1*L2 (as shown in Figures 38-9 ), L1 = L2 = 92 mm, that is, S1 is 0.008464 m2, and thus (μV / v) / S1 = 49%, that is, when the hollowing ratio a of the ventilation grille 2072 is ≥ 49%, the heat dissipation demand of the energy storage module 201 can be met. In order to ensure the shielding and protection effect of the ventilation grille 2072 on the heat dissipation end plate 206 and the aesthetics of the ventilation grille 2072, the hollowing ratio a of the ventilation grille 2072 is preferably 50%.

[0251] Further, the hollowing ratio a of the ventilation grille 2072 also satisfies the following relationship: a ≤ 70%, it can be understood that when a is greater than 70%, the strength of the ventilation grille 2072 is weak and is easy to be damaged, and the ability to prevent foreign matter from entering the driving fan 2061 and the energy storage unit 220 is poor.

[0252] In some embodiments of the present application, with reference to Figure 42As shown in FIG. 7, the ventilation grille 2072 includes a plurality of spaced apart air guide grids 20721, both ends of each air guide grid 20721 are fixed to the panel frame 2071, and an air outlet hole 20722 is formed between adjacent two air guide grids 20721. The air outlet hole 20722 is an equal-width air outlet hole, that is, the width of the air outlet hole 20722 in the air outlet direction is equal, and the width D1 of the air outlet hole 20722, the air guide grid 20721 is an equal-width air guide grid, that is, the width of the air guide grid 20721 in the air outlet direction is equal, and the width D2 of the air guide grid 20721 satisfies the following relationship: 0.6≤D1 / D2≤1.4. The equal-width air outlet hole and the equal-width air guide grid can facilitate the production and manufacturing of the ventilation grille 2072. At the same time, when the air outlet hole 20722 is an equal-width air outlet hole and the air guide grid 20721 is an equal-width air guide grid, D1 / D2 is approximately equal to the hollow ratio a of the ventilation grille 2072. If D1 / D2<0.6, the width of the air outlet hole 20722 is too small, and the ventilation grille 2072 will cause poor heat dissipation of the energy storage module 201. If D1 / D2>1.4, the width of the air outlet hole 20722 is too large, and the ventilation grille 2072 is difficult to prevent foreign matter from entering the driving fan 2061 and the energy storage unit 220.

[0253] In one specific embodiment of the present application, the ventilation panel 207 is manufactured by an integral injection molding process, D1 / D2=1, D1 is 2mm, and D2 is 2mm, thereby facilitating the demolding of the ventilation panel 207 and improving the yield of the ventilation panel 207.

[0254] In other embodiments of the present application, referring to Figure 43 and Figure 43 As shown in FIG. 7, the ventilation grille 2072 includes a plurality of spaced apart air guide grids 20721, both ends of each air guide grid 20721 are fixed to the panel frame 2071, and an air outlet hole 20722 is formed between adjacent two air guide grids 20721. The air outlet hole 20722 is an equal-width air outlet hole, that is, the width of the air outlet hole 20722 in the air outlet direction is equal, and the width D1 of the air outlet hole 20722, the air guide grid 20721 is an equal-width air guide grid, that is, the width of the air guide grid 20721 in the air outlet direction is equal, and the width D2 of the air guide grid 20721 satisfies the following relationship: 0.6≤D1 / D2≤1.4. The equal-width air outlet hole and the equal-width air guide grid can facilitate the production and manufacturing of the ventilation grille 2072. At the same time, when the air outlet hole 20722 is an equal-width air outlet hole and the air guide grid 20721 is an equal-width air guide grid, D1 / D2 is approximately equal to the hollow ratio a of the ventilation grille 2072. If D1 / D2<0.6, the width of the air outlet hole 20722 is too small, and the ventilation grille 2072 will cause poor heat dissipation of the energy storage module 201. If D1 / D2>1.4, the width of the air outlet hole 20722 is too large, and the ventilation grille 2072 is difficult to prevent foreign matter from entering the driving fan 2061 and the energy storage unit 220.

[0255] It can be understood that the air outlet hole 20722 is a variable-width air outlet hole, and the air guide grid 20721 is a variable-width air guide grid. When the driving fan 2061 blows air to the air guide grid 2072, the innermost width of the air outlet hole 20722 is greater than the outermost width, and the innermost width of the air guide grid 20721 is less than the outermost width. When D3 / D4 is approximately equal to the hollow ratio a of the air guide grid 2072, if D3 / D4 < 0.6, the minimum width of the air outlet hole 20722 is too small, and the air guide grid 2072 will cause poor heat dissipation of the energy storage module 201. If D3 / D4 > 1.4, the minimum width of the air outlet hole 20722 is too large, and the air guide grid 2072 is difficult to prevent foreign matter from entering the driving fan 2061 and the energy storage unit 220.

[0256] When the driving fan 2061 blows air to the energy storage unit 220, the innermost width of the air outlet hole 20722 is less than the outermost width, and the innermost width of the air guide grid 20721 is greater than the outermost width. If D3 / D4 < 0.6, the maximum width of the air outlet hole 20722 is too small, and the air guide grid 2072 will cause poor heat dissipation of the energy storage module 201. If D3 / D4 > 1.4, the maximum width of the air outlet hole 20722 is too large, and the air guide grid 2072 is difficult to prevent foreign matter from entering the driving fan 2061 and the energy storage unit 220.

[0257] In some embodiments of the present application, referring to Figure 43 It can be understood that the innermost width of the air outlet hole 20722 is the width of one side of the air outlet hole 20722 close to the panel frame 2071, the outermost width of the air outlet hole 20722 is the width of one side of the air outlet hole 20722 away from the panel frame 2071, the innermost width of the air guide grid 20721 is the width of one side of the air guide grid 20721 close to the panel frame 2071, and the outermost width of the air guide grid 20721 is the width of one side of the air guide grid 20721 away from the panel frame 2071. That is, the width of one side of the air outlet hole 20722 close to the driving fan 2061 is greater than the width of one side of the air outlet hole 20722 away from the driving fan 2061, and the width of one side of the air guide grid 20721 close to the driving fan 2061 is less than the width of one side of the air guide grid 20721 away from the driving fan 2061. The air outlet hole 20722 can form a reverse horn structure in the air outlet direction to reduce the air resistance of the driving fan 2061 to the air outlet hole 20722 and the air guide grid 20721, thereby facilitating the heat dissipation effect of the module assembly.

[0258] In some embodiments of the present application, referring to Figure 7As shown, the included angle β between the air guide side wall of the air guide grid 20721 and the air outlet direction satisfies the following relationship: 5°≤β≤15°, for example, β is 5°, or 10°, or 15°, so as to reduce the air resistance of the air outlet hole 20722 and the air guide grid 20721 to the air outlet of the driving fan 2061, if β is less than 5°, the air resistance of the air outlet hole 20722 and the air guide grid 20721 to the air outlet of the driving fan 2061 is not obvious, if β is greater than 15°, the strength of the air guide grid 20721 will be affected, and the air guide grid 20721 is easy to be deformed and vibrated under the action of the air outlet force.

[0259] In some embodiments of the application, the material used by the ventilation panel 207 is PPO (polyphenyl ether), which has the advantages of good toughness, heat resistance, flame retardance, wear resistance, oxidation resistance, weather resistance, etc. PPO is at least the same as the service life (10-15 years) of the energy storage unit 220, and can not be deformed under the condition of long-time hot air blowing.

[0260] In some embodiments of the application, a plurality of air guide grids 20721 are arranged equidistantly along the fourth direction, so that the air guide grids 20721 and the air outlet holes 20722 on the ventilation grid 2072 are uniformly arranged, the projection length D5 of the air guide grid 20721 in the fourth direction and the projection length D6 of the panel frame 2071 in the fourth direction satisfy the following relationship: 0.002≤D5 / D6≤0.006, so that the air guide grid 20721 of the ventilation grid 2072 has a sufficient number to form a relatively dense air guide grid 20721 and air outlet hole 20722, thereby facilitating the improvement of the ventilation uniformity of the ventilation grid 2072, and avoiding that smaller foreign matters enter the inside of the module assembly through the air outlet hole 20722.

[0261] The fourth direction can be the same as the first direction and the second direction, for example, referring to Figure 9 As shown, the fourth direction can be the length direction of the panel frame 2071, the projection length D6 of the panel frame 2071 in the fourth direction is the length of the panel frame 2071, which can be the same as or similar to the length of the heat dissipation end plate 206, and the projection length D5 of the air guide grid 20721 in the fourth direction is the maximum width of the air guide grid 20721, when D6 is 531.4mm, in order to ensure the ventilation uniformity of the ventilation grid 2072 and prevent foreign matters from passing through, the projection length D5 of each air guide grid 20721 in the fourth direction can be 2mm.

[0262] In some embodiments of the application, referring to Figure 43 and Figure 7As shown, the height H of the air guide grille 20721 extending outward from the panel frame 2071 satisfies the following relationship: 1 ≤ H / D5 ≤ 4. This ensures that the air guide grille 20721 has sufficient strength. Furthermore, the air guide grille 20721 can guide the airflow as it flows through the air outlet 20722 between the two air guide grilles 20721, preventing airflow from diverging and causing turbulence, thereby improving the heat dissipation effect of the driving fan 2061. It will be understood that the height H of the air guide grille 20721 extending outward from the panel frame 2071 is the projected length of the air guide grille 20721 on the straight line in the air outlet direction. For example, when D5 is 2 mm, the optional dimension of H can be 4 mm.

[0263] In some embodiments of the present invention, the air guide grille 20721 is a straight air guide grille, and the angle δ between the length direction of the straight air guide grille and the length direction of the panel frame 2071 satisfies the following relationship: 0°≤δ≤180°. The straight air guide grille is easy to manufacture and can make the ventilation panel 207 form a coordinated and beautiful overall visual effect. In some specific embodiments, when δ=90°, the ventilation panel 207 is as follows: Figure 44 When δ = 0°, the ventilation panel 207 is as shown. Figure 45 As shown, when δ=45°, the ventilation panel 207 is as shown in FIG. Figure 46 As shown, when δ=135°, the ventilation panel 207 is as shown in FIG. Figure 4 shown.

[0264] In other embodiments of the present invention, the air guide grille 20721 may be a curved air guide grille extending along a bending curve.

[0265] In some embodiments of the present invention, the energy storage unit 220 includes a plurality of battery cells, which are arranged in sequence along the thickness direction of the battery cells to form a heat dissipation duct extending along the length direction of the battery cells, and the heat exchange area between the heat dissipation duct and the battery cells is large. The heat dissipation end plate 206 is arranged at one end in the length direction of the battery cells to improve the heat dissipation effect of the energy storage unit 220.

[0266] In some embodiments of the present invention, reference Figure 12 and Figure 12 As shown, the heat dissipation end plate 206 is provided with a plurality of driving fans 2061, and the plurality of driving fans 2061 are arranged at equal intervals along the length direction of the heat dissipation end plate 206 to ensure uniform heat dissipation of the energy storage unit 220, avoid local overheating of the energy storage unit 220, and prevent the risk of thermal runaway of the energy storage unit 220.

[0267] In some embodiments of the present invention, reference Figure 47 、 Figure 48 and Figure 47As shown, the heat dissipation end plate 206 is provided with a first mounting portion 2069, the ventilation panel 207 is provided with a second mounting portion 2079 corresponding to the first mounting portion 2069, one of the first mounting portion 2069 and the second mounting portion 2079 is provided with a magnetic member 20691, and the other is provided with a magnetic attraction member 20791. The ventilation panel 207 is connected to the heat dissipation end plate 206 by magnetic attraction of the magnetic member 20691 and the magnetic attraction member 20791. The ventilation panel 207 can be conveniently mounted on or detached from the heat dissipation end plate 206 without the aid of mounting tools, thereby improving the mounting and detaching efficiency of the ventilation panel 207. Meanwhile, in the state of magnetic attraction, the assembly gap between the ventilation panel 207 and the heat dissipation end plate 206 is small and uniform, the ventilation panel 207 is not prone to shaking, and the magnetic force does not affect the positioning operation of the ventilation panel 207 relative to other components, thereby improving the use performance of the ventilation panel 207 and avoiding the situation that the ventilation panel 207 is not installed in place.

[0268] In addition, during the mounting and detaching of the ventilation panel 207, the first mounting portion 2069 and the second mounting portion 2079 are less damaged, and the ventilation panel 207 can be repeatedly disassembled and assembled multiple times without affecting the reliability of the connection between the ventilation panel 207 and the heat dissipation end plate 206. Compared with the traditional screw connection and buckle connection structure, the reliability of the ventilation panel 207 and the heat dissipation end plate 206 after repeated disassembly and assembly is better.

[0269] It should be noted that the magnetic member 20691 and the magnetic attraction member 20791 can be attracted to each other by magnetic force to facilitate disassembly and assembly of the ventilation panel 207, thereby facilitating the convenience of installation and maintenance of the module assembly, reducing the installation and maintenance cost of the module assembly, and further improving the user experience. In some embodiments of the present application, the magnetic member 20691 is a magnet with magnetism, and the magnetic attraction member 20791 is iron, cobalt, nickel or an alloy thereof suitable for being attracted by the magnetic member 20691. In some other embodiments of the present application, the magnetic member 20691 and the magnetic attraction member 20791 are magnets with opposite magnetic poles.

[0270] In some embodiments of the present application, the first mounting portion 2069 includes a first mounting seat 20692, the second mounting portion 2079 includes a second mounting seat 20792, one of the magnetic member 20691 and the magnetic attraction member 20791 is fixed to the first mounting seat 20692, and the other is fixed to the second mounting seat 20792, so as to realize fixation of the magnetic member 20691 and the magnetic attraction member 20791 to the ventilation panel 207 and the heat dissipation end plate 206, respectively.

[0271] In one embodiment of the present application, referring to Figure 48 and Figure 12As shown, the magnetic member 20691 is fixed to the first mounting seat 20692 of the heat dissipation end plate 206, and the magnetic attraction member 20791 is fixed to the second mounting seat 20792 of the ventilation panel 207.

[0272] In another embodiment of the present application (not shown in the figure), the magnetic attraction member 20791 is fixed to the first mounting seat 20692 of the heat dissipation end plate 206, and the magnetic member 20691 is fixed to the second mounting seat 20792 of the ventilation panel 207.

[0273] In some embodiments of the present application, the magnetic member 20691 and the magnetic attraction member 20791 can both be long strip structures, the first mounting seat 20692 is configured as a first mounting groove suitable for fixedly cooperating with the magnetic member 20691 or the magnetic attraction member 20791, and the magnetic member 20691 or the magnetic attraction member 20791 can be connected to the first mounting groove in a manner of welding connection, buckle connection, bolt connection or adhesive connection, etc., the second mounting seat 20792 is configured as a second mounting groove suitable for fixedly cooperating with the magnetic member 20691 or the magnetic attraction member 20791, and the magnetic member 20691 or the magnetic attraction member 20791 can be connected to the second mounting groove in a manner of welding connection, buckle connection, bolt connection or adhesive connection, etc.

[0274] In some embodiments of the present application, as shown in Figure 47 , Figure 48 and Figure 12 , the first mounting seat 20692 is arranged on the side of the heat dissipation end plate 206 facing the energy storage unit 220, and the second mounting seat 20792 is arranged on the side of the ventilation panel 207 facing the heat dissipation end plate 206, so as to hide the first mounting seat 20692 and the second mounting seat 20792 after the heat dissipation end plate 206 and the ventilation panel 207 are assembled.

[0275] In some embodiments of the present application, as shown in Figure 47 , Figure 48 and Figure 12 , the first mounting portion 2069 includes a first positioning member 20693, and the second mounting portion 2079 includes a second positioning member 20793, the first positioning member 20693 is suitable for positioning cooperation with the second positioning member 20793, so that the magnetic member 20691 and the magnetic attraction member 20791 are opposite and adsorbed, so as to realize accurate installation of the ventilation panel 207 on the heat dissipation end plate 206.

[0276] Optionally, the positioning cooperation of the first positioning member 20693 and the second positioning member 20793 can be the positioning cooperation of pin and hole, and can also be the positioning cooperation of slide rail and slide groove.

[0277] In some embodiments of the present application, one of the first positioning member 20693 and the second positioning member 20793 is a positioning hole, and the other is a positioning pin corresponding to the positioning hole. The positioning hole and the positioning pin are simple in structure, easy to manufacture, and high in reliability. When the positioning pin is inserted into the positioning hole, the magnetic member 20691 and the magnetic attraction member 20791 are opposite to each other, so as to facilitate accurate installation of the ventilation panel 207 on the heat dissipation end plate 206, thereby facilitating reduction of installation difficulty of the ventilation panel 207 and improvement of installation efficiency of the ventilation panel 207.

[0278] In one embodiment of the present application, as shown in Figure 47 , Figure 48 , Figure 47 , the first positioning member 20693 is a positioning hole, and the second positioning member 20793 is a positioning pin.

[0279] In another embodiment of the present application (not shown in the figure), the first positioning member 20693 is a positioning pin, and the second positioning member 20793 is a positioning hole.

[0280] In some embodiments of the present application, as shown in Figure 47 , the positioning pin is provided with a guide surface 20794 which is adapted to guide cooperation with the inner wall surface of the positioning hole, thereby facilitating installation difficulty of the positioning pin in the positioning hole and improving assembly efficiency. The guide surface 20794 can be a tapered guide surface provided on one end of the positioning pin facing the positioning hole. When the positioning pin is inserted into the positioning hole, the tapered guide surface can first enter the positioning hole, and the tapered guide surface 20794 can slide inwards along the inner wall surface of the positioning hole, so that the axis of the positioning pin coincides with the axis of the positioning hole.

[0281] In some embodiments of the present application, the cross-sectional shape of the positioning pin includes at least one of a rectangular shape, a circular shape, a T-shaped, and a cross-shaped. When the cross-sectional shape of the positioning pin is circular, the positioning pin and the positioning hole which is in positioning cooperation with the positioning pin are easy to process and manufacture. When the cross-sectional shape of the positioning pin is rectangular, T-shaped, or cross-shaped, the positioning pin can be prevented from rotating or shaking in the positioning hole, thereby improving the reliability of the connection between the ventilation panel 207 and the heat dissipation end plate 206. It should be noted that the cross-sectional shape of the positioning pin is the projection of the positioning pin on the plane perpendicular to the installation direction thereof.

[0282] In some embodiments of the present application, the ventilation panel 207 is provided with a plurality of second mounting portions 2079, for example, 4 or 8. The plurality of second mounting portions 2079 are distributed along the circumference of the ventilation panel 207. The heat dissipation end plate 206 is provided with a plurality of first mounting portions 2069 corresponding to the plurality of second mounting portions 2079 one by one, thereby facilitating improvement of the reliability of the connection between the ventilation panel 207 and the heat dissipation end plate 206 and prevention of the ventilation panel 207 from falling off.

[0283] In some embodiments of the present application, referring to Figure 12 As shown in the figure, the ventilation panel 207 comprises a panel frame 2071 and a ventilation grille 2072 fixed to the panel frame 2071, the second mounting portion 2079 is arranged on the panel frame 2071, the panel frame 2071 can be fixed with the heat dissipation end plate 206 through the second mounting portion 2079, the ventilation grille 2072 is hollow and can form a ventilation air duct, so that the airflow blown out or sucked in by the driving fan 2061 can pass through the ventilation grille 2072, ensuring the heat dissipation effect of the energy storage module 201, at the same time, the ventilation grille 2072 can also protect the heat dissipation end plate 206 and prevent foreign matters from entering the driving fan 2061 and the energy storage unit 220, so as to ensure the safety and reliability of the energy storage module 201.

[0284] It should be noted that, compared with the service life of the energy storage unit, the driving fan 2061 is a consumable part, when the driving fan 2061 needs to be repaired or replaced due to failure, the driving fan 2061 on the heat dissipation end plate 206 can be exposed by disassembling the ventilation panel 207, the disassembly direction of the driving fan 2061 on the heat dissipation end plate 206 is located on the side of the heat dissipation end plate 206 away from the energy storage unit 220, in other words, the disassembly direction of the driving fan 2061 is located on the side of the heat dissipation end plate 206 facing the ventilation panel 207, so that the driving fan 2061 can be repaired or replaced without disassembling the heat dissipation end plate 206, thereby facilitating the convenience of module assembly maintenance. Referring to Figure 49 As shown in the figure, the driving fan 2061 is installed on the side of the heat dissipation end plate 206 away from the energy storage unit 220 through a plurality of second fasteners 20611, the second fasteners 20611 can be bolts. According to another aspect of the energy storage cabinet 200 of the embodiment of the present application, the module assembly of the above-mentioned embodiment is included.

[0285] Referring to Figure 30 and Figures 49-52As shown, the energy storage cabinet 200 may be provided with multiple module assemblies, and the energy storage modules 201 of the multiple module assemblies need to be electrically connected. The connection terminals 202 for electrical connection of each energy storage module 201 may be at least partially penetrated by the heat dissipation end plate 206. The connection terminals 202 of two adjacent energy storage modules 201 may be connected through the electrical connection assembly 100. The ventilation panel 207 may shield the connection terminals 202 and at least part of the electrical connection assembly 100 to prevent personnel from contacting the connection terminals 202 and the electrical connection assembly 100, thereby reducing the risk of electric shock to personnel. At the same time, when the number of energy storage modules 201 needs to be increased or decreased in the energy storage cabinet 200, the connection terminals 202 on the heat dissipation end plate 206 can be exposed by removing the ventilation panel 207, so as to facilitate the disassembly and assembly of the electrical connection assembly 100, thereby facilitating the maintenance of the energy storage cabinet 200. Optionally, the heat dissipation end plate 206 of each energy storage module 201 in the energy storage cabinet 200 may be arranged toward the cabinet door of the energy storage cabinet 200 to facilitate disassembly and assembly of the ventilation panel 207 and the electrical connection assembly 100 .

[0286] According to an embodiment of the present invention, the energy storage cabinet 200 has a module assembly provided with a heat dissipation end plate 206, which is provided with a drive fan 2061. A ventilation panel 207 is provided on the outside of the heat dissipation end plate 206. The ventilation panel 207 can ensure the heat dissipation effect of the module assembly and prevent foreign matter from entering. The ventilation panel 207 can also improve the convenience of module assembly maintenance, thereby helping to enhance the market competitiveness of the energy storage cabinet 200.

[0287] The following combination Figures 49-52 The energy storage cabinet 200 according to an embodiment of the present invention is described in detail.

[0288] Reference Figure 49 As shown, the energy storage cabinet 200 includes: an energy storage module 201 and a high-voltage distribution box, wherein:

[0289] The energy storage module 201 includes a driving fan 2061 and an information collector (BIC) 2062. The information collector 2062 can sample the voltage, temperature and other parameters of the battery cells of the energy storage module 201. The battery cells will generate heat during charging and discharging. The driving fan 2061 can be used to dissipate heat from the battery cells to keep the battery cells at a suitable operating temperature. The information collector 2062 includes an integrated output terminal 20621, a signal input terminal 20622 and a power supply input terminal 20623. The integrated output terminal 20621 is connected to the connected signal input terminal 20622 and the power supply input terminal 20623. The driving fan 2061 is connected to the integrated output terminal 20621. The information collector 2062 supplies power and provides control signals to the driving fan 2061 through the integrated output terminal 20621.

[0290] The high-voltage power distribution box 299 (PDU) includes a signal lead-out end and a power supply lead-out end. The signal lead-out end is connected with the signal input end 20622, and the high-voltage power distribution box 299 provides a control signal to the signal input end 20622 through the signal lead-out end. The power supply lead-out end is connected with the power supply input end 20623, and the high-voltage power distribution box 299 supplies power to the power supply input end (20623) through the power supply lead-out end. The high-voltage power distribution box 299 can generate a control signal for controlling the driving fan 2061 according to the temperature of the battery cell. The control signal can be output by the signal lead-out end, flow into the information collector 2062 through the signal input end 20622, and then be transmitted to the driving fan 2061 through the integrated output end 20621, so as to adjust the rotating speed of the driving fan 2061 and make the rotating speed of the driving fan 2061 meet the heat dissipation demand of the battery cell. At the same time, the high-voltage power distribution box 299 can also supply power to the driving fan 2061. The power supply current is output by the power supply lead-out end, flows into the information collector 2062 through the power supply input end 20623, and then is transmitted to the driving fan 2061 through the integrated output end 20621, so as to supply power to the driving fan 2061.

[0291] It should be noted that the structure of the information collector 2062 can be a printed circuit board (PCB) and electronic components electrically connected thereon. The integrated output end 20621, the signal input end 20622 and the power supply input end 20623 can all be plug-in sockets on the printed circuit board. The signal input end 20622 and the integrated output end 20621 can be connected through a second internal conductive wire in the printed circuit board. The power supply input end 20623 and the integrated output end 20621 are connected through a third internal conductive wire in the printed circuit board. The integrated output end 20621 can transmit the power supply current and the control signal to the driving fan 2061. Alternatively, the second internal conductive wire and the third internal conductive wire can be copper foils in the printed circuit board.

[0292] It can be understood that the information collector 2062 integrates part of the external circuit for supplying power to the driving fan 2061 and part of the external circuit for transmitting control information of the driving fan 2061, and outputs the power supply current and the control signal through one integrated output end 20621, thereby facilitating the reduction of the complexity of the external circuit between the high-voltage power distribution box 299 and the energy storage module 201, and facilitating the arrangement and maintenance of the energy storage cabinet 200.

[0293] In some embodiments of the present application, the energy storage module 201 further comprises the battery cell and the heat dissipation end plate 206, the heat dissipation end plate 206 is arranged on one side of the battery cell, the driving fan 2061 and the information collector 2062 are arranged on the heat dissipation end plate 206, the driving fan 2061 can be connected with the integrated output end 20621 through the external integrated line 206111, so that the driving fan 2061 receives the power supply current and the control signal, and the driving fan 2061 and the information collector 2062 can be arranged adjacent to each other to reduce the length of the external integrated line 206111. In addition, the energy storage module 201 can set one or more driving fans 2061 according to the heat dissipation requirement of the battery cell, the plurality of driving fans 2061 can be arranged on the heat dissipation end plate 206, and the plurality of driving fans 2061 on the heat dissipation end plate 206 can be connected with the integrated output end 20621 through the same external integrated line 206111, so as to further reduce the complexity of the external line in the energy storage cabinet 200.

[0294] According to the energy storage cabinet 200 of the embodiment of the present application, the power supply current and the control signal of the driving fan 2061 pass through the information collector 2062 and are transmitted to the driving fan 2061 through the integrated output end 20621 of the information collection, thereby facilitating the reduction of the complexity of the external line in the energy storage cabinet 200 and facilitating the assembly, maintenance and maintenance of the energy storage cabinet 200.

[0295] In some embodiments of the present application, as shown in Figure 50 , Figure 51 , the energy storage cabinet 200 comprises a plurality of energy storage modules 201 arranged in a first direction, and the information collectors 2062 of each energy storage module 201 are aligned in the first direction, and the power supply input end 20623 of each energy storage module 201 is connected with the power supply leading end through the first external power supply line, thereby facilitating the arrangement of the first external power supply line in the energy storage cabinet 200 and reducing the bending of the first external power supply line.

[0296] The first direction can be the height direction of the energy storage cabinet 200, that is, the plurality of energy storage modules 201 in the energy storage cabinet 200 can be stacked in the height direction of the energy storage cabinet 200, and the heat dissipation end plate 206 of each energy storage module 201 has the same orientation of the driving fan 2061 and the information collector 2062 and is aligned in the stacking direction, thereby facilitating the arrangement of the first external power supply line in the energy storage cabinet 200 and reducing the bending of the first external power supply line.

[0297] In some embodiments of the present application, as shown in Figure 51As shown, the first external power supply line includes a plurality of power supply branch lines 2063, the number of the power supply branch lines 2063 corresponds to the number of the energy storage modules 201, in other words, the number of the power supply branch lines 2063 is the same as the number of the energy storage modules 201, each power supply branch line 2063 includes a branch main line 20631 and a branch sub-line 20634 parallel to the branch main line 20631, the branch main lines 20631 of the plurality of power supply branch lines 2063 are sequentially connected to form a main power supply loop, and the branch sub-lines 20634 of the plurality of power supply branch lines 2063 are respectively connected to the corresponding power supply input end 20623 to realize that the driving fan 2061 on each energy storage module 201 is parallel to the main power supply loop.

[0298] It can be understood that the number of the energy storage modules 201 in the energy storage cabinet 200 can be adjusted according to the energy storage demand, the first external power supply line is divided into a plurality of detachable power supply branch lines 2063, the number of the power supply branch lines 2063 can correspond to the number of the energy storage modules 201, so that when the number of the energy storage modules 201 in the energy storage cabinet 200 is small, the excess and waste of the first external power supply line can be avoided, the cost of the energy storage cabinet 200 is reduced, and the complexity of the external circuit in the energy storage cabinet 200 is reduced, so as to facilitate the assembly, maintenance and maintenance of the energy storage cabinet 200.

[0299] In some embodiments of the present application, referring to Figure 50 As shown, a connecting male head 20632 is arranged at one end of the branch main line 20631, and a connecting female head 20633 is arranged at the other end, the connecting male head 20632 of one of the adjacent two branch main lines 20631 is connected to the connecting female head 20633 of the other branch main line 20631 through plug-in connection, thereby facilitating the installation, disassembly and maintenance of the plurality of branch main lines 20631.

[0300] In some embodiments of the present application, referring to Figure 51 and Figure 49 As shown, the information collector 2062 further includes a clamping seat 20625, the connecting male head 20632 and / or the connecting female head 20633 are adapted to be fixed with the clamping seat 20625, that is, one of the connecting male head 20632 or the connecting female head 20633 is adapted to be fixed with the clamping seat 20625, or both the connecting male head 20632 and the connecting female head 20633 are adapted to be fixed with the clamping seat 20625, thereby facilitating the control of the direction of the first external power supply line, avoiding the heat and signal interference caused by the intersection of the first external power supply line, and also preventing the connecting male head 20632 and the connecting female head 20633 from loosening at the connection, and improving the reliability of the plug-in connection of the connecting male head 20632 and the connecting female head 20633. Optionally, the clamping seat 20625 can be fixed outside the printed circuit board of the information collector 2062.

[0301] In some embodiments of the present invention, the information collector 2062 also includes a first fuse, which is connected in series in the circuit between the power supply input terminal 20623 and the integrated output terminal 20621, thereby providing overload protection for the driving fan 2061. When the current between the power supply input terminal 20623 and the integrated output terminal 20621 abnormally rises to a first preset current threshold, the electrical connection between the power supply input terminal 20623 and the integrated output terminal 20621 is disconnected, thereby facilitating improving the service life and reliability of the driving fan 2061.

[0302] In some embodiments of the present invention, the first fuse is a self-resetting fuse. When a short circuit or overload occurs in the circuit between the power input terminal 20623 and the integrated output terminal 20621, a large current flows through the first fuse, causing it to enter a high-resistance state, thereby limiting and protecting the circuit between the power input terminal 20623 and the integrated output terminal 20621. When the fault is eliminated, the first fuse returns to a low-resistance state, allowing the circuit between the power input terminal 20623 and the integrated output terminal 20621 to conduct. This avoids the need for manual replacement of the first fuse and reduces the maintenance cost of the energy storage cabinet 200.

[0303] In other embodiments of the present invention, referring to Figure 52 and Figure 52 As shown, the information collector 2062 also includes a power supply output terminal 20624 and a first internal conductive line. The power supply output terminal 20624 is connected to the power supply input terminal 20623 via the first internal conductive line. The integrated output terminal 20621 is connected in parallel to the first internal conductive line. The energy storage cabinet 200 includes a plurality of energy storage modules 201 stacked along a first direction, and the information collector 2062 of each energy storage module 201 is aligned in the first direction. The power supply input terminal 20623 of one of the multiple energy storage modules 201 is connected to the power supply lead-out terminal, and the power supply input terminals 20623 of the remaining energy storage modules 201 are connected to the power supply output terminal 20624 of the upstream adjacent energy storage module 201 via a second external power supply line 2065a, so as to reduce the length of the second external power supply line 2065a and facilitate the arrangement of the second external power supply line 2065a in the energy storage cabinet 200. It can be understood that the upstream adjacent energy storage module 201 is the adjacent energy storage module 201 through which the power supply current flows first.

[0304] It should be noted that the structure of the information collector 2062 can be a printed circuit board (PCB) and electronic components electrically connected thereon, the integrated output end 20621, the signal input end 20622, the power supply input end 20623 and the power supply output end 20624 can be all the plug-in sockets on the printed circuit board, the power supply output end 20624 is connected with the power supply input end 20623 through the first internal conductive line in the printed circuit board, the signal input end 20622 is connected with the integrated output end 20621 through the second internal conductive line in the printed circuit board, the integrated output end 20621 is connected in parallel with the first internal conductive line through the third internal conductive line, and the integrated output end 20621 can transmit the power supply current and the control signal to the driving fan 2061. Alternatively, the first internal conductive line, the second internal conductive line and the third internal conductive line can be copper foils in the printed circuit board.

[0305] The plurality of energy storage modules 201 in the energy storage cabinet 200 can be stacked along the height direction of the energy storage cabinet 200, and each energy storage module 201 has the same orientation of the heat dissipation end plate 206 of the driving fan 2061 and the information collector 2062 and is aligned in the stacking direction, thereby facilitating the arrangement of the second external power supply line 2065a in the energy storage cabinet 200 and reducing the bending of the second external power supply line 2065a. At the same time, the number of the second external power supply line 2065a can be the same as the number of the energy storage module 201, and the two ends of the second external power supply line 2065a are connected with the power supply input end 20623 and the power supply output end 20624 of the adjacent energy storage module 201 respectively, so that the first internal conductive line in the adjacent two energy storage modules 201 is communicated and a main power supply loop is formed, and the integrated output end 20621 of each energy storage module 201 is also connected in parallel with the first internal conductive line, so as to realize that the driving fan 2061 on each energy storage module 201 is connected in parallel with the main power supply loop.

[0306] In some embodiments of the present application, the number of energy storage modules 201 in the energy storage cabinet 200 can be adjusted according to the energy storage demand, the energy storage module 201 closest to the high-voltage distribution box 299 in the energy storage cabinet 200 can be regarded as the most upstream energy storage module, the power supply input end 20623 of the most upstream energy storage module is connected with the power supply leading-out end, and the power supply input end 20623 of the rest of the energy storage modules 201 is connected with the power supply output end 20624 of the adjacent upstream energy storage module 201 through the second external power supply line 2065a, and the number of the second external power supply line 2065a can correspond to the number of the energy storage module 201, so that when the number of energy storage modules 201 in the energy storage cabinet 200 is small, the redundancy and waste of the second external power supply line 2065a can be avoided, the cost of the energy storage cabinet 200 is reduced, and the complexity of the external circuit in the energy storage cabinet 200 is reduced, so as to facilitate the assembly, maintenance and maintenance of the energy storage cabinet 200.

[0307] For example, the energy storage cabinet 200 has a first energy storage module, a second energy storage module and a third energy storage module stacked from bottom to top, wherein the first energy storage module at the bottom is closest to the high-voltage distribution box 299, the first energy storage module serves as the most upstream energy storage module, the power input end 20623 of the first energy storage module is connected with the power output end, the power input end 20623 of the second energy storage module is connected with the power output end 20624 of the first energy storage module connected upstream through a second external power supply line 2065a, and the power input end 20623 of the third energy storage module is connected with the power output end 20624 of the second energy storage module upstream through another second external power supply line 2065a. The power supply current flows through the information collector 2062 of the first energy storage module, the information collector 2062 of the second energy storage module and the information collector 2062 of the third energy storage module in turn from the power output end.

[0308] Further, referring to FIG. 8, Figure 50 In the plurality of energy storage modules 201 of the energy storage cabinet 200, the power output end 20624 of one of the energy storage modules 201 is close to the power input end 20623 of the adjacent other energy storage module 201, thereby facilitating reduction of the length of the second external power supply line 2065a, facilitating arrangement of the second external power supply line 2065a, and preventing interference between the plurality of second external power supply lines 2065a.

[0309] In some embodiments of the present application, the information collector 2062 further comprises a second fuse connected in series in the circuit between the power input end 20623 and the power output end 20624 to provide overload protection for each information collector 2062 in the main power supply circuit. When the current between the power input end 20623 and the power output end 20624 abnormally rises to a second preset current threshold, the second fuse can disconnect the electrical connection between the power input end 20623 and the power output end 20624, thereby facilitating improvement of the service life and reliability of the second external power supply line 2065a.

[0310] In some embodiments of the present application, the second fuse is a self-recovery fuse. When a short circuit or overload occurs in the circuit between the power input end 20623 and the power output end 20624, a large current flowing through the second fuse causes the second fuse to form a high resistance state, thereby limiting and protecting the circuit between the power input end 20623 and the power output end 20624. When the fault is eliminated, the second fuse returns to a low resistance state, allowing the circuit between the power input end 20623 and the power output end 20624 to conduct, thereby avoiding manual replacement of the second fuse and reducing the maintenance cost of the energy storage cabinet 200.

[0311] In some embodiments of the present application, referring to FIGS. 8, Figure 51 Figure 52 and​Figure 50 As shown, the information collector 2062 further comprises a signal output end 20626, in the plurality of energy storage modules 201, the signal input end 20622 of one information collector 2062 is connected with the signal leading-out end, the signal input end 20622 of the rest information collectors 2062 is connected with the signal output end 20626 of the upstream adjacent energy storage module 201 through the signal external connection line 2066a, so as to reduce the length of the signal external connection line 2066a and facilitate the arrangement of the second external power supply line 2065a in the energy storage cabinet 200. It can be understood that the upstream adjacent energy storage module 201 is the adjacent energy storage module 201 through which the control information flows first.

[0312] It can be understood that the number of energy storage modules 201 in the energy storage cabinet 200 can be adjusted according to the energy storage demand, the energy storage module 201 closest to the high-voltage power distribution box 299 in the energy storage cabinet 200 can be regarded as the most upstream energy storage module, the signal input end 20622 of the most upstream energy storage module is connected with the signal leading-out end, the signal input end 20622 of the rest energy storage modules 201 is connected with the signal output end 20626 of its upstream adjacent energy storage module 201 through the signal external connection line 2066a, the number of signal external connection lines 2066a can correspond to the number of energy storage modules 201, so as to avoid the redundancy and waste of the signal external connection line 2066a when the number of energy storage modules 201 in the energy storage cabinet 200 is small, thereby reducing the cost of the energy storage cabinet 200, and reducing the complexity of the external connection line in the energy storage cabinet 200, so as to facilitate the assembly, maintenance and maintenance of the energy storage cabinet 200.

[0313] For example, the energy storage cabinet 200 has a first energy storage module, a second energy storage module and a third energy storage module stacked from bottom to top, wherein the first energy storage module at the bottom is closest to the high-voltage power distribution box 299, the first energy storage module is regarded as the most upstream energy storage module, the signal input end 20622 of the first energy storage module is connected with the signal leading-out end, the signal input end 20622 of the second energy storage module is connected with the signal output end 20626 of the first energy storage module connected upstream through one signal external connection line 2066a, the signal input end 20622 of the third energy storage module is connected with the signal output end 20626 of the second energy storage module upstream through another signal external connection line 2066a, and the control information can be transmitted from the signal leading-out end to the information collector 2062 of the first energy storage module, the information collector 2062 of the second energy storage module and the information collector 2062 of the third energy storage module.

[0314] In some embodiments of the present application, the control signal comprises ID information and control information, and each information collector 2062 of each energy storage module 201 can process the control signal when receiving and transmitting the control signal, to identify whether the ID information in the control signal matches itself, if the ID information matches, the control information corresponding to the ID information is sent to the driving fan 2061 connected thereto, if the ID information does not match, it is not responded.

[0315] For example, when the high-voltage distribution box 299 needs to control the driving fan 2061 of the first energy storage module to increase the speed by 5%, the high-voltage distribution box 299 generates a first control signal, which comprises the ID information of the information collector 2062 of the first energy storage module and the control information of increasing the speed of the driving fan 2061 by 5%, and the first control signal can be broadcast to the information collector 2062 of the first energy storage module, the information collector 2062 of the second energy storage module and the information collector 2062 of the third energy storage module, the information collector 2062 of the first energy storage module can identify that the ID information matches, and the corresponding control information is sent to the driving fan 2061 connected to the output end 20621 thereof, so as to increase the speed of the driving fan 2061 of the first energy storage module by 5%.

[0316] In some embodiments of the present application, referring to Figure 51 and Figure 50 , the information collector 2062 further comprises a first clamping groove 20627, which can be used to fix the signal external wire 2066a, so as to facilitate the layout of the control signal external wire 2066a.

[0317] In some embodiments of the present application, referring to Figure 51 and Figure 49 , the information collector 2062 further comprises a second clamping groove 20628, which can be used to fix the power supply branch line 2063, so as to facilitate the layout of the control power supply branch line 2063.

[0318] In some embodiments of the present application, the high-voltage distribution box 299 can be integrated with a switching power supply, which can convert 220V AC mains through ACDC to output 24V DC through the power supply lead-out end.

[0319] In some embodiments of the present application, the high-voltage distribution box 299 can be integrated with a BMS (Battery Management System) mainboard, which can take points from the cells of the energy storage module 201 and output 24V DC through the power supply lead-out end.

[0320] In some embodiments of the present application, referring to Figure 33As shown, the high-voltage distribution box 299 is arranged at the left part of the energy storage cabinet 200 (i.e., the left side of the energy storage module 201), and the high-voltage distribution box 299 can lead the main power supply line and the main control line from the lower part of the energy storage module 201. The main power supply line is provided with a power supply leading end, and the main control line is provided with a signal leading end.

[0321] In some embodiments of the present application, as shown in Figure 35 and Figure 33 As shown, the energy storage cabinet 200 can be provided with a control switch 1003 arranged in the cabinet body 60 and in communication connection with the control unit 1000. When the opening and closing door 62 is opened, the control switch 1003 is triggered to make the control unit 1000 control the energy storage cabinet 200 to stop. When the opening and closing door 62 is opened and the energy storage cabinet 200 is still in system operation, it is easy to cause the operator to be electrically shocked in the misoperation. In the present application, by arranging the control switch 1003, when the opening and closing door 62 is opened, the control switch 1003 is released, and its state change is sensed by the control unit 1000, and then the control unit 1000 controls the energy storage cabinet 200 to stop, so as to prevent the energy storage cabinet 200 from being in system operation after the opening and closing door 62 is opened, and improve the use safety of the energy storage cabinet 200.

[0322] In some embodiments of the present application, the energy storage cabinet 200 can further include a smoke detection member, which can be a smoke sensor. The smoke detection member is arranged in the cabinet body and in communication connection with the control unit 1000. When the smoke detection member detects smoke, the control unit 1000 is used to control the energy storage cabinet 200 to stop. When a fire occurs in the energy storage cabinet 200, the smoke sensor sends a signal to the control unit 1000, the control unit 1000 sends a warning to the upper system, and controls the energy storage cabinet 200 to stop, effectively preventing a fire in the energy storage cabinet 200.

[0323] In some embodiments of the present application, as shown in Figure 35 and Figure 33 As shown, the energy storage cabinet 200 can further include an audible and visual alarm device 1004 arranged outside the cabinet body 60 and in communication connection with the control unit 1000. The control unit 1000 is used to control the audible and visual alarm device 1004 to send alarm information. The audible and visual alarm device 1004 can be an audible and visual alarm. When a fire occurs in the energy storage cabinet 200, the control unit 1000 controls the energy storage cabinet 200 to stop, and at the same time, the control unit 1000 controls the audible and visual alarm device 1004 to alarm, for example, the audible and visual alarm 1004 sends a warning sound and a red flashing light alarm to prompt the user that a fire occurs in the energy storage cabinet 200.

[0324] In some embodiments of the present application, as shown in Figure 35 and ​As shown, the energy storage cabinet 200 can further include an emergency stop switch 1005, the emergency stop switch 1005 being in communication connection with the control unit 1000, when the emergency stop switch 1005 is triggered, the control unit 1000 is used to control the energy storage cabinet 200 to stop. Wherein, in an emergency, when the emergency stop switch 1005 is pressed, the control unit 1000 will be triggered, so that the control unit 1000 controls the energy storage cabinet 200 to stop, and the energy storage cabinet 200 can be controlled to stop without opening the opening and closing door 62.

[0325] In some embodiments of the present application, the inner surface of the cabinet body 60 is attached with thermal insulation cotton, the thickness of the thermal insulation cotton is 30mm-50mm, further, the thickness of the thermal insulation cotton can be set to 40mm, by setting the thermal insulation cotton, the overall heat dissipation coefficient of the energy storage cabinet 200 can be reduced. Further, the reinforcing plate 1006 is installed on the opening and closing door 62, which protects the thermal insulation cotton and strengthens the strength of the opening and closing door 62.

[0326] In some embodiments of the present application, the cabinet body 60 can be made of a bulletproof plate, for example, the overall structure of the cabinet body 60 is made of a bulletproof plate, or part of the structure of the cabinet body 60 is made of a bulletproof plate, further, the top plate of the cabinet body 60 is made of a bulletproof plate, so as to protect the safety of personnel in extreme cases. The bulletproof plate can be replaced by a common sheet metal or a top plate made of other process materials without bulletproof function in some examples.

[0327] In some embodiments of the present application, the energy storage cabinet 200 can further include a walking wheel, the walking wheel being arranged at the lower end of the cabinet body 60, the walking wheel being used to support the cabinet body 60 of the energy storage cabinet 200, facilitating the movement of the cabinet body 60 to the braking area. Further, the energy storage cabinet 200 can further include a decorative cover 1007, the decorative cover 1007 being arranged around the lower end of the cabinet body 60 to shield the walking wheel, so that the walking wheel is prevented from being exposed to the outside, the appearance consistency of the energy storage cabinet 200 can be improved, and objects can be prevented from entering the bottom of the cabinet body 60.

[0328] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0329] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely divergences of the principles and application of the present application and that numerous modifications, changes, substitutions, and alterations can be made thereto without departing from the spirit and scope of the present application, which is defined by the following claims and their equivalents.

Claims

1. An energy storage cabinet (200), characterized in that: include: A cabinet (60), the cabinet (60) comprising a cabinet body (61) and an opening and closing door (62), the cabinet body (61) defining an installation cavity with one end open, a first space (40) and a second space (41) formed in the installation cavity, and the opening and closing door (62) being used to open or close the installation cavity; A plurality of energy storage modules (201), wherein the plurality of energy storage modules (201) are arranged in the first space (40), the plurality of energy storage modules (201) are stacked in a first direction of the energy storage cabinet, and the first space (40) and the second space (41) are arranged side by side in a second direction perpendicular to the first direction; a control unit (1000), the control unit (1000) being disposed in the second space (41) and electrically connected to the energy storage module (201); The second space (41) is suitable for guiding wind into the first space (40); The first space (40) and the second space (41) are in communication; The energy storage cabinet is provided with a first communicating hole (44), and the first communicating hole (44) communicates the first space (40) and the second space (41); A third space (42) is formed in the installation cavity, the third space (42) is connected to the second space (41) through the first connecting hole (44), and the third space (42) has a second connecting hole connected to the first space (40), and wind in the second space (41) is suitable for flowing into the first space (40) through the third space (42); wherein, in the second direction of the energy storage cabinet (200), the first space (40) and the third space (42) are located on the same side of the second space (41), and in the third direction of the energy storage cabinet (200), the third space (42) is arranged on the rear side of the first space (40); An air conditioner (50) is provided in the cabinet (60), and the air conditioner (50) has an air outlet (51) and an air inlet (52), wherein the air outlet (51) is communicated with the second space (41), and the air inlet (52) is communicated with the first space (40).

2. The energy storage cabinet (200) according to claim 1, characterized in that The energy storage cabinet (200) is provided with a control switch (1003), which is arranged in the cabinet body (60) and is in communication connection with the control unit (1000). When the opening and closing door (62) is opened, the control switch (1003) is triggered to enable the control unit (1000) to control the energy storage cabinet (200) to stop.

3. The energy storage cabinet (200) according to claim 1, characterized in that Also includes: Smoke A detection component is provided in the cabinet (60) and is in communication connection with the control unit (1000); when the smoke detection component detects smoke, the control unit (1000) is used to control the energy storage cabinet (200) to shut down.

4. The energy storage cabinet (200) according to claim 1, characterized in that Also includes: An emergency stop switch (1005), the emergency stop switch (1005) is in communication connection with the control unit (1000), and when the emergency stop switch (1005) is triggered, the control unit (1000) is used to control the energy storage cabinet (200) to stop.

5. The energy storage cabinet (200) according to claim 1 or 3, characterized in that: Also includes: An audible and visual alarm device (1004) is provided outside the cabinet (60) and is in communication with the control unit (1000). The control unit (1000) is used to control the audible and visual alarm device (1004) to issue an alarm message.

6. The energy storage cabinet (200) according to claim 1, characterized in that The inner surface of the cabinet (60) is provided with thermal insulation cotton.

7. The energy storage cabinet (200) according to claim 1, characterized in that Also includes: A running wheel is provided at the lower end of the cabinet (60).

8. The energy storage cabinet (200) according to claim 1, characterized in that There are a plurality of the first communicating holes (44), the plurality of the first communicating holes (44) are arranged along the first direction, and each of the energy storage modules (201) corresponds to at least one of the first communicating holes (44).

9. The energy storage cabinet (200) according to claim 1, characterized in that: There are a plurality of the second communicating holes, the plurality of the second communicating holes are arranged along the first direction, and the plurality of the first communicating holes (44) correspond to the plurality of the second communicating holes one by one.

10. The energy storage cabinet (200) according to claim 9, characterized in that: A plurality of subspaces are formed in the third space (42), and the plurality of subspaces, the plurality of first communicating holes (44) and the plurality of second communicating holes correspond one to one, and the subspaces communicate with the corresponding first communicating holes (44) and the second communicating holes.

11. The energy storage cabinet (200) according to claim 1, characterized in that: There is one second communicating hole, and in the first direction, the second communicating hole is arranged close to the middle of the third space (42).

12. The energy storage cabinet (200) according to any one of claims 9 to 11, characterized in that: A first channel (43) is formed in the installation cavity, the first channel (43) and the first space (40) are arranged along the first direction, and the first channel (43) is communicated with the first space (40) and / or the third space (42).

13. The energy storage cabinet (200) according to claim 12, characterized in that: Alternatively, the air outlet (51) is in communication with the second space (41) and the first channel (43), and the air inlet (52) is in communication with the first space (40).

14. The energy storage cabinet (200) according to claim 13, characterized in that: The end of the first space (40) close to the air inlet (52) is open to form a first opening, and the end of the second space (41) close to the air outlet (51) is open to form a second opening. The first opening and the second opening are separated by a spacer.

15. The energy storage cabinet (200) according to claim 1, characterized in that Also includes: A positive power line (1001) and a negative power line (1002), wherein one end of the positive power line (1001) is connected to the control unit (1000), and the other end of the positive power line (1001) is suitable for plugging into a connection terminal (202) of the energy storage module (201); One end of the negative power line (1002) is connected to the control unit (1000), and the other end of the negative power line (1002) is suitable for plugging into the connection terminal (202) of the energy storage module (201).

16. The energy storage cabinet (200) according to claim 1, characterized in that The energy storage module (201) comprises: an energy storage unit (220), the energy storage unit (220) comprising a plurality of battery cells (208), the plurality of battery cells (208) being arranged in sequence along the thickness direction of the battery cells (208), a first air duct (210) extending along a third direction being formed between at least two adjacent battery cells (208), the third direction being orthogonal to both the first direction and the second direction, and the first air duct (210) being in communication with the first space (40).

17. The energy storage cabinet (200) according to claim 16, characterized in that: The energy storage module (201) further comprises: a first side plate (211) and a second side plate (212), wherein the energy storage unit (220) is provided between the first side plate (211) and the second side plate (212); A support beam (219) extends along the thickness direction of the battery cell (208) and connects the first side plate (211) and the second side plate (212) so that the first side plate (211) and the second side plate (212) clamp the energy storage unit (220); the support beam (219) is provided on at least one side of the energy storage unit (220) in the width direction of the battery cell (208).

18. The energy storage cabinet (200) according to claim 17, characterized in that: The energy storage module (201) further comprises: a top cover (213) and a bottom cover (214); the top cover (213) and the bottom cover (214) are both connected to the first side plate (211) and the second side plate (212); the energy storage unit (220) is located between the top cover (213) and the bottom cover (214); a second air duct (216) is formed between the top cover (213) and the energy storage unit (220) and / or between the bottom cover (214) and the energy storage unit (220) by the separation effect of the support beam (219); and the second air duct (216) is communicated with the first space (40).

19. The energy storage cabinet (200) according to claim 18, characterized in that: The support beam (219) is in contact with a surface of the energy storage unit (220) close to the top cover (213) and the top cover (213), and / or the support beam (219) is in contact with a surface of the energy storage unit (220) close to the bottom cover (214) and the bottom cover (214) to divide the second air duct (216) into a plurality of sub-air ducts (217), and the support beam (219) has an air passage (218) connecting two adjacent sub-air ducts (217).

20. The energy storage cabinet (200) according to claim 18, characterized in that: The energy storage module (201) is provided with an air supply hole (215), and the air supply hole (215) is connected with the first space (40) and the second air duct (216).

21. The energy storage cabinet (200) according to claim 16, characterized in that: The energy storage module (201) further includes: a heat sink (209), the heat sink (209) defining the first air duct (210), a plurality of the battery cells (208) forming a plurality of battery cell groups, each of the battery cell groups including at least one battery cell (208), and the heat sink (209) being provided between two adjacent battery cell (208) groups.

22. The energy storage cabinet (200) according to claim 18, characterized in that The energy storage module (201) further comprises: a driving fan (2061), wherein the driving fan (2061) is arranged at one end of the energy storage unit (220) and is spaced apart from the energy storage unit (220) in the length direction of the battery cell (208), and the driving fan (2061) is used to drive gas to flow in the first air duct (210) and along the first air duct (210).

23. The energy storage cabinet (200) according to claim 22, characterized in that: The energy storage module (201) further comprises: a temperature detection element, the temperature detection element being used to detect the temperature of the energy storage module (201); the driving fan (2061) and the temperature detection element are both suitable for being connected to a battery management system of the energy storage module (201); the battery management system being used to control the operating mode of the driving fan (2061) by receiving temperature information detected by the temperature detection element.

24. The energy storage cabinet (200) according to claim 22, characterized in that The energy storage module (201) further comprises: a heat dissipation end plate (206), the driving fan (2061) is mounted on the heat dissipation end plate (206), and the heat dissipation end plate (206) is fixedly connected to the first side plate (211) and / or the second side plate (212).

25. The energy storage cabinet (200) according to claim 24, characterized in that: The heat dissipation end plate (206) is provided with a positive connection terminal (2029) and a negative connection terminal (2030), the positive connection terminal (2029) is connected to the total positive output pole of the energy storage unit (220), and the negative connection terminal (2030) is connected to the total negative output pole of the energy storage unit (220), and in the second direction, the positive connection terminal (2029) and the negative connection terminal (2030) are arranged close to the same side of the heat dissipation end plate (206).

26. The energy storage cabinet (200) according to claim 25, characterized in that The heat dissipation end plate (206) defines a mounting groove (2063a), and the positive electrode connection terminal (2029) and the negative electrode connection terminal (2030) are both arranged in the mounting groove (2063a); The heat dissipation end plate (206) further defines an anti-foolproof groove (203), the anti-foolproof groove (203) is in communication with the mounting groove (2063a), and the anti-foolproof groove (203) is used for wiring; The heat dissipation end plate (206) further defines a wiring groove (2064), the wiring groove (2064) is communicated with the installation groove (2063a), and the anti-mistake groove (203) and the wiring groove (2064) are respectively located on both sides of the installation groove (2063a).

27. The energy storage cabinet (200) according to claim 24, characterized in that The energy storage module (201) further comprises: a ventilation panel (207), wherein the ventilation panel (207) is arranged on a side of the driving fan (2061) away from the energy storage unit (220), and the ventilation panel (207) is provided with an air outlet (20722).

28. The energy storage cabinet (200) according to claim 27, characterized in that The ventilation panel (207) includes a panel frame (2071) and a ventilation grille (2072) fixed to the panel frame (2071); the ventilation grille (2072) includes a plurality of air guide grilles (20721) arranged at intervals; both ends of each air guide grille (20721) are fixed to the panel frame (2071); and the air outlet (20722) is formed between two adjacent air guide grilles (20721).

29. The energy storage cabinet (200) according to claim 28, characterized in that The hollow proportion α of the ventilation grille (2072) satisfies the following relationship: α≥(μV / v) / S1, wherein μ satisfies the relationship 0.9≤μ≤1.1, V is the exhaust volume per unit time when the driving fan (2061) is running at full power, v is the maximum wind speed of the driving fan (2061), and S1 is the effective air outlet area of ​​the driving fan (2061).

30. The energy storage cabinet (200) according to claim 22, characterized in that: The energy storage module (201) further comprises: an end plate (2081), the end plate (2081) being arranged at the other end of the energy storage unit (220) and spaced apart from the energy storage unit (220), the end plate (2081) being connected to the top cover (213) and / or the bottom cover (214); The end plate (2081) is provided with a first air inlet hole (2082) communicating with the first air duct (210).

31. The energy storage cabinet (200) according to claim 16, characterized in that: The length dimension of the battery core (208) is E, which satisfies the relationship: 400mm≤E≤1500mm; The width dimension of the battery core (208) is F, which satisfies the relationship: 70mm≤F≤150mm; The thickness dimension of the battery core (208) is G, which satisfies the relationship: 10 mm ≤ G ≤ 25 mm.

32. The energy storage cabinet (200) according to claim 1, characterized in that Also includes: An electrical connection component (100) is used to electrically connect the two energy storage modules (201), and the electrical connection component (100) is plug-fitted with the energy storage module (201).

33. The energy storage cabinet (200) according to claim 27, characterized in that The heat dissipation end plate (206) is provided with a first mounting portion (2069), the ventilation panel (207) shields the driving fan (2061), and the ventilation panel (207) is provided with a second mounting portion (2079) correspondingly connected to the first mounting portion (2069).

34. The energy storage cabinet (200) according to claim 22, characterized in that The energy storage module further includes: An information collector (2062), the information collector (2062) comprising an integrated output terminal (20621), a signal input terminal (20622), and a power input terminal (20623); the integrated output terminal (20621) is connected to the signal input terminal (20622) and the power input terminal (20623); the driving fan (2061) is connected to the integrated output terminal (20621); the information collector (2062) supplies power and provides a control signal to the driving fan (2061) via the integrated output terminal (20621); A high-voltage distribution box (299), comprising a signal lead-out terminal and a power supply lead-out terminal, wherein the signal lead-out terminal is connected to the signal input terminal (20622), and the high-voltage distribution box provides the control signal to the signal input terminal (20622) via the signal lead-out terminal, and the power supply lead-out terminal is connected to the power supply input terminal (20623), and the high-voltage distribution box supplies power to the power supply input terminal (20623) via the power supply lead-out terminal.

35. The energy storage cabinet (200) according to claim 34, characterized in that The information collector (2062) of each energy storage module (201) is aligned in a first direction, and the power supply input terminals (20623) of the plurality of energy storage modules (201) are connected to the power supply output terminals via a first external power supply line.

36. The energy storage cabinet (200) according to claim 35, characterized in that The first external power supply line includes a plurality of power supply branches (2063), the number of the power supply branches (2063) corresponds to the number of the energy storage modules (201), each of the power supply branches (2063) includes a branch main line (20631) and a branch branch line (20634) connected in parallel with the branch main line (20631), the branch main lines (20631) of the plurality of power supply branches (2063) are connected in sequence, and the branch branch lines (20634) of the plurality of power supply branches (2063) are respectively connected to the corresponding power supply input end (20623).

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