Energy Storage Cabinet

Abstract

Energy storage cabinet (200). The energy storage cabinet (200) comprises a cabinet body (60), in which a first space (40) and a second space (41) are formed, a plurality of energy storage modules (201), in which the plurality of energy storage modules (201) are disposed in the first space (40) and stacked in a first direction of the energy storage cabinet (200), and the first space (40) and the second space (41) are disposed side by side in a second direction perpendicular to the first direction, and a control unit (1000), in which the control unit (1000) is disposed in the second space (41) and electrically connected to the energy storage modules (201).

Description

[Technical Field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This disclosure claims priority to Chinese Patent Application No. 202210475139.6, filed on April 29, 2022, the entirety of which is incorporated herein by reference.

[0002] The present disclosure relates to the field of energy storage cabinets, and more particularly to energy storage cabinets. [Background technology]

[0003] In the related art, a space for installing an energy storage module and a control unit is defined in an existing energy storage cabinet, but interference between the energy storage module and the control unit may easily occur, the assembly of components in the energy storage cabinet is not compact, and the volume of the energy storage cabinet becomes large. Summary of the Invention [Problem to be solved by the invention]

[0004] The present disclosure aims to solve at least one of the technical problems in the related art to some extent. Accordingly, an object of the present disclosure is to provide an energy storage cabinet. The energy storage cabinet separates a control unit and an energy storage module, and can avoid interference between the control unit and the energy storage module. In addition, the energy storage cabinet also allows the control unit and multiple energy storage modules to be assembled compactly, which helps reduce the volume of the energy storage cabinet. [Means for solving the problem]

[0005] An energy storage cabinet according to the present disclosure includes: a cabinet including a cabinet body and an opening / closing door, the cabinet body defining an installation cavity with one end open, a first space and a second space formed inside the installation cavity, and the opening / closing door being used to open or close the installation cavity; a plurality of energy storage modules, the plurality of energy storage modules being arranged in the first space and stacked in a first direction of the energy storage cabinet, and 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, the control unit being arranged in the second space and electrically connected to the energy storage modules.

[0006] In the energy storage cabinet according to the present disclosure, the control unit and the energy storage modules are separately arranged in different spaces, thereby separating the control unit and the energy storage modules and preventing interference between them. This arrangement also enables compact assembly of the control unit and multiple energy storage modules, contributing to a reduction in the volume of the energy storage cabinet.

[0007] In some embodiments of the present disclosure, the energy storage cabinet is equipped with a control switch located within the cabinet and communicatively connected to the control unit, such that when the access door is opened, the control switch is triggered to cause the control unit to shut down the energy storage cabinet.

[0008] In some embodiments of the present disclosure, the energy storage cabinet further includes a smoke detection device, the smoke detection device is installed inside the cabinet and is in communication with the control unit, and when the smoke detection device detects smoke, the control unit is used to shut down the energy storage cabinet.

[0009] In some embodiments of the present disclosure, the energy storage cabinet further includes an emergency stop switch, the emergency stop switch being in communication with the control unit, and when the emergency stop switch is triggered, the control unit is used to shut down the energy storage cabinet.

[0010] In some embodiments of the present disclosure, the energy storage cabinet further includes an audible and visual alarm device, the audible and visual alarm device is installed on the exterior of the cabinet and is in communication with a control unit, the control unit is used to control the audible and visual alarm device to issue alarm information.

[0011] In some embodiments of the present disclosure, insulating cotton is applied to the interior surface of the cabinet.

[0012] In some embodiments of the present disclosure, the energy storage cabinet further includes caster wheels, the caster wheels being mounted on a bottom end of the cabinet.

[0013] In some embodiments of the present disclosure, the second space is adapted to direct air into the first space.

[0014] In some embodiments of the present disclosure, the first space and the second space are connected.

[0015] In some embodiments of the present disclosure, the energy storage cabinet is provided with a first connection hole, which connects the first space and the second space.

[0016] In some embodiments of the present disclosure, a plurality of first connection holes are arranged along the first direction, and each energy storage module corresponds to at least one of the first connection holes.

[0017] In some embodiments of the present disclosure, a third space is formed within the first space, and the third space is in communication with the second space through a first connecting hole. Further, the third space has a second connecting hole connected to the first space, and air within the second space is suitable to flow into the first space through the third space.

[0018] In some embodiments of the present disclosure, a plurality of second connection holes are arranged along the first direction, and each second connection hole corresponds to one of the first connection holes.

[0019] In some embodiments of the present disclosure, a plurality of sub-spaces are formed within the third space, and the sub-spaces, the plurality of first connection holes, and the plurality of second connection holes correspond one-to-one to each other. Each sub-space is connected to its corresponding first connection hole and second connection hole.

[0020] In some embodiments of the present disclosure, the number of second connection holes is one, and this one second connection hole is located near the center of the third space along the first direction.

[0021] In some embodiments of the present disclosure, a first channel is formed in the installation cavity, the first channel and the first space are arranged along a first direction, and the first channel is connected to the first space and / or the third space.

[0022] In some embodiments of the present disclosure, the energy storage cabinet further includes an air conditioner installed within the cabinet, the air conditioner having an air outlet and an air inlet, the air outlet connected to the second space and / or the first channel, and the air inlet connected to the first space.

[0023] In some embodiments of the present disclosure, the cabinet body defines a first opening connected to the first space, the first opening facing the air inlet. The cabinet body also defines a second opening connected to the second space, the second opening facing the air outlet. The first and second openings are separated by a spacer.

[0024] In some embodiments of the present disclosure, the energy storage cabinet further includes a positive power line and a negative power line, one end of the positive power line being connected to the control unit and the other end being suitable for being plugged into a connection terminal of the energy storage module; One end of the negative power line is connected to the control unit, and the other end is suitable for plugging into a connection terminal of the energy storage module.

[0025] In some embodiments of the present disclosure, the energy storage module includes an energy storage unit including a plurality of battery cells sequentially arranged along a thickness direction of the battery cells, at least two adjacent battery cells forming a first air duct extending in a third direction perpendicular to both the first direction and the second direction, and the first air duct connected to the first space.

[0026] In some embodiments of the present disclosure, the energy storage module comprises: a first side panel and a second side panel, the first side panel and the second side panel having an energy storage unit disposed between the first side panel and the second side panel; a support beam extending along a thickness direction of the battery cell and connecting the first side plate and the second side plate so that the first side plate and the second side plate can sandwich the energy storage unit; The support beam is disposed on at least one side of the energy storage unit in a width direction of the battery cell.

[0027] In some embodiments of the present disclosure, the energy storage module further includes a top cover and a bottom cover, both of which are connected to the first side panel and the second side panel. The energy storage unit is located between the top cover and the bottom cover. Due to the separating effect of the support beam, a second air duct is formed between the top cover and the energy storage unit and / or between the bottom cover and the energy storage unit. The second air duct is connected to the first space.

[0028] In some embodiments of the present disclosure, the support beam contacts a surface proximate to the top cover and the top cover of the energy storage unit, and / or the support beam contacts a surface proximate to the bottom cover and the bottom cover of the energy storage unit, so as to divide the second air duct into multiple sub-air ducts, and the support beam has an air passage connecting two adjacent sub-air ducts.

[0029] In some embodiments of the present disclosure, the energy storage module is provided with an air supply hole, which connects the first space with the second air duct.

[0030] In some embodiments of the present disclosure, the energy storage module further includes a heat sink, the heat sink defining a first air duct, the plurality of battery cells forming a plurality of battery cell groups, each battery cell group including at least one battery cell, and the heat sink being arranged between two adjacent battery cell groups.

[0031] In some embodiments of the present disclosure, the energy storage module further includes a drive fan, the drive fan located at one end of the energy storage unit and spaced apart from the energy storage unit in a lengthwise direction of the battery cell, the drive fan being used to drive air to flow within and along the first air duct.

[0032] In some embodiments of the present disclosure, the energy storage module further includes a temperature detection component, the temperature detection component is used to detect the temperature of the energy storage module, and both the driving fan and the temperature detection component are suitable for connection to a battery management system of the energy storage module, and the battery management system is used to control the operation mode of the driving fan by receiving the temperature information detected by the temperature detection component.

[0033] In some embodiments of the present disclosure, the energy storage module further includes a heat dissipation end plate, to which the drive fan is attached, the heat dissipation end plate being fixedly connected to the first side plate and / or the second side plate.

[0034] In some embodiments of the present disclosure, the heat dissipating end plate is provided with a positive connection terminal and a negative connection terminal. The positive connection terminal is connected to the total positive output poles of the energy storage unit, and the negative connection terminal is connected to the total negative output poles of the energy storage unit. In the second orientation, the positive connection terminal and the negative connection terminal are located adjacent to the same side of the heat dissipating end plate.

[0035] In some embodiments of the present disclosure, the heat dissipating end plate defines a mounting groove, and both the positive and negative connection terminals are located within the mounting groove; the heat dissipating end plate further defines a foolproof slot, the foolproof slot communicates with the mounting groove, the foolproof slot is used for wiring; The heat dissipating end plate further defines a wiring slot, the wiring slot communicating with the mounting groove, the foolproof slot and the wiring slot respectively located on two sides of the mounting groove.

[0036] In some embodiments of the present disclosure, the energy storage module further includes a ventilation panel, the ventilation panel being located on a side of the driving fan remote from the energy storage unit, the ventilation panel being provided with air outlet holes.

[0037] In some embodiments of the present disclosure, the ventilation panel includes a panel frame and a ventilation grille fixed to the panel frame, the ventilation grille including a plurality of spaced apart air guide grilles, two ends of each air guide grille fixed to the panel frame, and air outlet holes formed between two adjacent air guide grilles.

[0038] In some embodiments of the present disclosure, the perforation rate α of the ventilation grille satisfies the following formula: α≧(μV / v) / S1, where μ is 0.9, 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.

[0039] In some embodiments of the present disclosure, the energy storage module further includes an end plate, the end plate being arranged at another end of the energy storage unit and spaced apart from the energy storage unit, the end plate being connected to the top cover and / or the bottom cover; The end plate has a first air inlet hole in communication with the first air duct.

[0040] In some embodiments of the present disclosure, the length dimension of the battery cell is E, and satisfies the relationship 400 mm≦E≦1500 mm; The width dimension of the battery cell is F, and the relationship 70 mm ≦ F ≦ 150 mm is satisfied; The thickness dimension of the battery cell is G, and satisfies the relationship 10 mm≦G≦25 mm.

[0041] In some embodiments of the present disclosure, the energy storage cabinet further includes an electrical connection assembly, which is used to electrically connect two energy storage modules, and which is plugged into the energy storage modules.

[0042] In some embodiments of the present disclosure, a first mounting portion is provided on the heat dissipation end plate, and a ventilation panel shields the drive fan, and a second mounting portion is provided on the ventilation panel that corresponds to and connects to the first mounting portion.

[0043] In some embodiments of the present disclosure, the energy storage module comprises: an information collector including an integrated output terminal, a signal input terminal, and a power input terminal, the integrated output terminal being connected to both the signal input terminal and the power input terminal, the driving fan being connected to the integrated output terminal, and the information collector supplying power and providing a control signal to the driving fan via the integrated output terminal; A high-voltage distribution box, the high-voltage distribution box including a signal lead-out terminal and a power lead-out terminal, the signal lead-out terminal is connected to the signal input terminal, the high-voltage distribution box provides a control signal to the signal input terminal via the signal lead-out terminal, the power lead-out terminal is connected to the power input terminal, the high-voltage distribution box supplies power to the power input terminal via the power lead-out terminal; Further includes:

[0044] In some embodiments of the present disclosure, the information collectors of each energy storage module are aligned in a first direction, and the power input terminals of the multiple energy storage modules are connected to the power draw terminal via a first external power line.

[0045] In some embodiments of the present disclosure, the first external power line includes a plurality of power branches, the number of which corresponds to the number of energy storage modules, and each power branch includes a main branch line and a sub-branch line connected in parallel to the main branch line, the main branch lines of the plurality of power branches are connected in sequence, and the sub-branch lines of the plurality of power branches are connected to corresponding power input terminals, respectively.

[0046] Additional aspects and advantages of the present disclosure will be set forth in part in the description that follows, and in part will be apparent from the description, or may be learned by practice of the present disclosure. [Brief explanation of the drawings]

[0047] [Figure 1] FIG. 1 is an exploded view of an energy storage module according to one embodiment of the present disclosure. [Figure 2] FIG. 1 is a schematic diagram of the internal structure of an energy storage module, according to one embodiment of the present disclosure. [Figure 3]FIG. 1 is a schematic diagram of an energy storage module according to one embodiment of the present disclosure. [Figure 4] FIG. 1 is a schematic diagram of an energy storage module without ventilation panels, according to one embodiment of the present disclosure. [Figure 5] FIG. 2 is a schematic assembly diagram of battery cells and shrouds of an energy storage module according to one embodiment of the present disclosure. [Figure 6] FIG. 1 is a schematic diagram of the relative positions of a drive fan and heat sink of an energy storage module according to one embodiment of the present disclosure. [Figure 7] FIG. 1 is a schematic assembly diagram of a battery cell and heat sink of an energy storage module according to one embodiment of the present disclosure. [Figure 8] FIG. 8 is an enlarged view of M in FIG. [Figure 9] FIG. 1 is a side view of a heat sink of an energy storage module according to one embodiment of the present disclosure. [Figure 10] FIG. 1 is a front view of a heat sink of an energy storage module according to one embodiment of the present disclosure. [Figure 11] FIG. 2 is a schematic diagram of a battery cell of an energy storage module according to one embodiment of the present disclosure. [Figure 12] FIG. 2 is a schematic assembly diagram of a heat dissipating end plate and a driving fan according to one embodiment of the present disclosure. [Figure 13] FIG. 10 is a schematic view of the heat dissipation end plate and the driving fan after assembly from another angle according to one embodiment of the present disclosure. [Figure 14] FIG. 10 is a schematic diagram of a second side plate and a fixing bracket according to one embodiment of the present disclosure. [Figure 15] FIG. 10 is a schematic assembly view of a second side plate and a fixed plate according to one embodiment of the present disclosure. [Figure 16] FIG. 2 is a schematic diagram of a top cover according to one embodiment of the present disclosure. [Figure 17] FIG. 1 is a front view of a support beam according to one embodiment of the present disclosure. [Figure 18] FIG. 10 is a top view of a support beam according to one embodiment of the present disclosure. [Figure 19]FIG. 2 is a schematic assembly diagram of a battery cell and a connecting piece according to one embodiment of the present disclosure. [Figure 20] FIG. 1 is a schematic assembly view of a connection piece and a busbar mounting rack according to one embodiment of the present disclosure. [Figure 21] FIG. 2 is a partial enlarged view of an assembly of a connection piece and a busbar mounting rack according to one embodiment of the present disclosure. [Figure 22] FIG. 2 is a schematic assembly diagram of a heat dissipating end plate, a driving fan, and an information collector according to one embodiment of the present disclosure. [Figure 23] 1 is a schematic assembly diagram of an electrical connection assembly and a connection terminal according to one embodiment of the present disclosure. [Figure 24] 10 is a schematic view of an assembly of an electrical connection assembly and a connection terminal from another angle according to one embodiment of the present disclosure. [Figure 25] FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. [Figure 26] FIG. 2 is an exploded view of a conductive bar and a connection terminal according to one embodiment of the present disclosure. [Figure 27] FIG. 2 is a schematic assembly diagram of a conductive bar and a connection terminal according to one embodiment of the present disclosure. [Figure 28] FIG. 1 is an exploded view of a conductive bar and insulating cover according to one embodiment of the present disclosure. [Figure 29] FIG. 2 is a schematic assembly diagram of a conductive bar and an insulating cover according to one embodiment of the present disclosure. [Figure 30] FIG. 1 is an exploded view of an electrical connection assembly and connection terminal on an energy storage module according to one embodiment of the present disclosure. [Figure 31] FIG. 1 is a schematic assembly diagram of an electrical connection assembly and connection terminals on an energy storage module according to one embodiment of the present disclosure. [Figure 32] FIG. 1 is a schematic diagram of a ventilation panel according to one embodiment of the present disclosure. [Figure 33] FIG. 1 is a schematic diagram of an energy storage cabinet according to one embodiment of the present disclosure. [Figure 34] FIG. 1 illustrates a cross-sectional view of an energy storage cabinet according to one embodiment of the present disclosure. [Figure 35] FIG. 1 is a schematic diagram of the internal structure of an energy storage cabinet, according to one embodiment of the present disclosure. [Figure 36] FIG. 1 is a schematic diagram of an energy storage cabinet without an energy storage module, according to one embodiment of the present disclosure. [Figure 37] FIG. 4 is an exploded view of FIG. 3. [Figure 38] FIG. 33 is a partial enlarged view of the ventilation panel of FIG. 32. [Figure 39] FIG. 1 is a front view of a ventilation panel according to one embodiment of the present disclosure. [Figure 40] FIG. 10 is a bottom view of a ventilation panel according to one embodiment of the present disclosure. [Figure 41] FIG. 41 is a partially enlarged view of FIG. 40. [Figure 42] FIG. 10 is a bottom view of a ventilation panel according to another embodiment of the present disclosure. [Figure 43] FIG. 43 is an enlarged view of a partial structure of FIG. 42. [Figure 44] FIG. 10 is a front view of a ventilation panel according to another embodiment of the present disclosure. [Figure 45] FIG. 10 is a front view of a ventilation panel according to another embodiment of the present disclosure. [Figure 46] FIG. 10 is a front view of a ventilation panel according to another embodiment of the present disclosure. [Figure 47] FIG. 10 is a close-up view of the ventilation panel at the second mounting portion according to an embodiment of the present disclosure. [Figure 48] FIG. 10 is a close-up view of a heat dissipating end plate at a first mounting portion according to an embodiment of the present disclosure. [Figure 49] FIG. 1 is a schematic diagram of an energy storage cabinet according to one embodiment of the present disclosure. [Figure 50] FIG. 2 is a schematic diagram of a driving fan and an information collector according to one embodiment of the present disclosure. [Figure 51] FIG. 1 is a schematic diagram of an information collector connection between two adjacent energy storage modules according to one embodiment of the present disclosure. [Figure 52] FIG. 10 is a schematic diagram of an information collector connection between two adjacent energy storage modules according to another embodiment of the present disclosure. [Figure 53] FIG. 2 is a schematic assembly diagram of an energy storage module, a control unit, a positive power line, and a negative power line, according to one embodiment of the present disclosure. [Figure 54] FIG. 1 is a schematic diagram of an energy storage cabinet filled with energy storage modules, according to one embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0048]

[0023] The embodiments of the present disclosure are described in detail below. Examples of the embodiments are shown in the accompanying drawings, and in all of the accompanying drawings, the same or similar reference numerals indicate the same or similar components or components having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present disclosure and should not be construed as limiting the present disclosure.

[0049] The following is a description of an energy storage cabinet 200 according to an embodiment of the present disclosure with reference to Figures 1 to 54. The energy storage cabinet 200 can supply power to other electrical devices. An energy storage module 201 can be installed inside the energy storage cabinet to supply power to other electrical devices.

[0050] 1 to 52, an energy storage cabinet 200 according to an embodiment of the present disclosure includes a control unit 1000, a cabinet 60, and a plurality of energy storage modules 201. The plurality of energy storage modules 201 are installed inside the cabinet 60 and stacked in a first direction of the energy storage cabinet 200, and when the energy storage cabinet 200 is placed in the direction shown in FIG. 35, the first direction of the energy storage cabinet 200 refers to the vertical direction of the energy storage cabinet 200, i.e., the plurality of energy storage modules 201 are stacked vertically within the energy storage cabinet 200. A first space 40 and a second space 41 are formed within the cabinet 60, and the first space 40 and the second space 41 are arranged side by side in a second direction perpendicular to the first direction. This can also be understood as the first space 40 and the second space 41 being arranged side by side in the second direction of the energy storage cabinet 200. The first space 40 and the second space 41 can be arranged adjacent to each other, i.e., the first space 40 and the second space 41 are arranged adjacent to each other. When the energy storage cabinet 200 is placed in the direction shown in FIG. 35 , the second direction of the energy storage cabinet 200 may point to the left-right direction of the energy storage cabinet 200. The first space 40 is used to install energy storage modules 201, and multiple energy storage modules 201 are installed in the first space 40, i.e., the energy storage modules 201 are located in the first space 40. The control unit 1000 is installed 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 electrical energy to an external device.

[0051] By arranging the control unit 1000 and the energy storage module 201 in different spaces, i.e., by arranging the control unit 1000 in the second space 41 and the energy storage module 201 in the first space 40, the control unit 1000 and the energy storage module 201 are separated and interference between them can be avoided. Furthermore, this arrangement allows for compact assembly of the control unit 1000 and multiple energy storage modules 201, contributing to a reduction in the overall volume of the energy storage cabinet 200.

[0052] In some embodiments of the present disclosure, the first space 40 and the second space 40 are connected, and the second space 41 is adapted to guide air into the first space 40. By arranging the first space 40 and the second space 41 side by side in the second direction of the energy storage cabinet 200, air is guided into the first space 40 along the second space 41 by the second space 41, allowing air to flow into the first space 40 from the side. After entering the first space 40, the air flowing into the first space 40 is evenly distributed to each energy storage module 201, ensuring that each energy storage module 201 receives the same or approximately the same amount of air intake. This improves the consistency of heat dissipation efficiency among the multiple energy storage modules 201, ensures uniform heat dissipation among the multiple energy storage modules 201, and enhances the heat dissipation efficiency of the energy storage modules 201. This further ensures the heat dissipation effect of each energy storage module 201, equalizes the temperature of multiple energy storage modules 201, more effectively prevents thermal runaway from occurring in the energy storage modules 201, and improves the operational safety of the energy storage cabinet 200.

[0053] 35 , a plurality of module mounting racks 401 are provided in the first space 40, and the plurality of module mounting racks 401 are spaced apart sequentially in the first direction. A plurality of energy storage modules 201 are respectively installed in the plurality of module mounting racks 401, and each module mounting rack 401 corresponds to one energy storage module 201. One energy storage module 201 is installed in each module mounting rack 401, and the module mounting racks 401 securely support the energy storage modules 201, ensuring that the energy storage modules 201 are firmly installed in the first space 40.

[0054] In some embodiments of the present disclosure, as shown in FIGS. 34 and 35 , a third space 42 is formed in the cabinet 60, and the third space 42 communicates with both the first space 40 and the second space 41. Furthermore, the third space 42, the first space 40, and the second space 41 are all arranged to extend in a first direction of the energy storage cabinet 200. Air in the second space 41 is adapted to flow into the first space 40 through the third space 42. After entering the second space 41, the air is guided along the second space 41 into the third space 42 and flows into the third space 42 from the side of the third space 42. After the air flows into the third space 42, the air flowing into the third space 42 can be evenly distributed to each energy storage module 201, ensuring that each energy storage module 201 receives the same or approximately the same amount of air intake, thereby achieving a balanced air intake effect. This further improves the consistency of heat dissipation efficiency among the multiple energy storage modules 201 and ensures more uniform heat dissipation across the energy storage modules 201. This further ensures the heat dissipation effect of each energy storage module 201, further equalizes the temperature of the multiple energy storage modules 201, and more effectively prevents the occurrence of thermal runaway in the energy storage modules 201, thus further enhancing the operational safety of the energy storage cabinet 200.

[0055] In some embodiments of the present disclosure, as shown in Figures 34 and 35, in the second orientation 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 both the second space 41 and the first space 40. When the energy storage cabinet 200 is placed in the orientation shown in Figure 35, the first space 40 and the third space 42 can be located on the left or right side of the second space 41. The present disclosure uses, as an example, an arrangement in which the first space 40 and the third space 42 are located on the right side of the second space 41. Furthermore, in the third orientation of the energy storage cabinet 200, when the energy storage cabinet 200 is placed in the orientation shown in FIG. 35 , the third direction refers to the front-to-rear direction of the energy storage cabinet 200, and the third space 42 is located rearward of the first space 40. Specifically, the left side of the third space 42 communicates with the second space 41, and the front end of the third space 42 communicates with the first space 40. After air flows into the second space 41, the air flows toward the rear end of the second space 41. When the air reaches the third space 42, it enters the third space 42 from the left side of the third space 42. Then, the air in the third space 42 flows into the first space 40 from the front end of the third space 42 to cool the energy storage module 201 and achieve the heat dissipation effect of the energy storage module 201.

[0056] In some embodiments of the present disclosure, the energy storage cabinet 200 is equipped with a first connection hole 44 connecting the first space 40 and the second space 41. The first connection hole 44 may be one or more. After air enters the second space 41, the air in the second space 41 flows into the first space 40 through the first connection hole 44 to exchange heat with the energy storage module 201, preventing thermal runaway from occurring in the energy storage module 201 and thus further improving the operational safety of the energy storage cabinet 200.

[0057] In some embodiments of the present disclosure, the first connection holes 44 are multiple, arranged along the first direction, and spaced apart sequentially along this direction. Each energy storage module 201 corresponds to at least one first connection hole 44. Air in the second space 41 flows into the first space 40 through these multiple first connection 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 each energy storage module 201 receives the same or approximately the same amount of air intake, achieving a balanced air intake effect. As a result, this further improves the consistency of heat dissipation efficiency among the multiple energy storage modules 201 and ensures more uniform heat dissipation among the multiple energy storage modules 201. This further ensures the heat dissipation effect of each energy storage module 201, promotes temperature balance between the modules, more effectively prevents thermal runaway in the energy storage modules 201, and thus further enhances the operational safety of the energy storage cabinet 200.

[0058] In some embodiments of the present disclosure, as shown in FIGS. 34 and 35 , a third space 42 is formed within the first space 40 inside the cabinet 60. The third space 42 is connected to the second space 41 via a first connection hole 44, and the number of first connection holes 44 may be single or multiple. For example, there may be multiple first connection holes 44, and all of the multiple first connection holes 44 connect the third space 42 and the second space 41. In other words, the third space 42 and the second space 41 are connected via these multiple first connection holes 44, and the multiple first connection holes 44 are arranged along the first direction. Furthermore, the third space 42 has a second connection hole that communicates with the first space 40. Air in the second space 41 is suitable for flowing into the first space 40 via the third space 42, and the number of second connection holes may be single or multiple. Furthermore, the multiple first connection holes 44 are spaced apart sequentially along the first direction, with at least one first connection hole 44 provided at a height corresponding to each energy storage module 201 in the first direction of the energy storage cabinet 200. For example, multiple second connection holes are present, and after air enters the second space 41, the air in the second space 41 flows into the third space 42 through the multiple first connection holes 44, and the air flows into the third space 42 from the side of the second space 41. After the air enters the third space 42 through the multiple first connection holes 44, the air in the third space 42 flows into the first space 40 through the second connection hole, allowing the air flowing into the first space 40 to be more evenly distributed to each energy storage module 201. This ensures that each energy storage module 201 receives the same or approximately the same amount of air intake, achieving a balanced air intake effect. As a result, this further improves the consistency of heat dissipation efficiency among the multiple energy storage modules 201 and ensures more uniform heat dissipation among the multiple energy storage modules 201. This further ensures the heat dissipation effect of each energy storage module 201, promotes temperature balance among the modules, and more effectively prevents the occurrence of thermal runaway in the energy storage modules 201, thus further improving the operational safety of the energy storage cabinet 200.

[0059] Furthermore, there are multiple second connection holes, and the multiple second connection holes are arranged along the first direction. Furthermore, these multiple second connection holes are sequentially spaced apart along the first direction, and each of the multiple first connection holes 44 corresponds to one of the multiple second connection holes. After air simultaneously flows into the third space 42 through the multiple first connection holes 44, the air in the third space 42 flows into the first space 40 through the multiple second connection holes. This allows the air flowing into the third space 42 to be more evenly distributed to each energy storage module 201, ensuring that each energy storage module 201 receives the same or approximately the same amount of air intake. This better achieves a balanced air intake effect, thereby further improving the consistency of heat dissipation efficiency among the multiple energy storage modules 201 and ensuring more uniform heat dissipation among the multiple energy storage modules 201.

[0060] Furthermore, multiple sub-spaces are formed within the third space 42, and the third space 42 has multiple partition plates, which are spaced apart sequentially in the first direction to divide the third space 42 into multiple sub-spaces. The multiple sub-spaces, the multiple first connection holes 44, and the multiple second connection holes are arranged in a one-to-one correspondence. The sub-spaces communicate with the corresponding first connection holes 44 and second connection holes of each sub-space. After air simultaneously flows into the third space 42 through the multiple first connection holes 44, the air entering through each first connection hole 44 flows into the corresponding sub-space of each first connection hole 44. The air in each sub-space then flows to the corresponding energy storage module 201 through the corresponding second connection hole. This allows the air flowing into the third space 42 to be more evenly distributed to each energy storage module 201, ensuring that each energy storage module 201 receives the same or approximately the same amount of air intake. This better achieves a balanced air intake effect, thereby further improving the consistency of heat dissipation efficiency among the multiple energy storage modules 201 and ensuring more uniform heat dissipation of the multiple energy storage modules 201.

[0061] In some embodiments of the present disclosure, the second connecting hole is configured as a single hole positioned near the center of the third space 42 in the first direction. After air flows into the third space 42, the air in the third space 42 flows into the first space 40 through the second connecting hole, and then the air diffuses along the first direction. This allows the air flowing into the third space 42 to be more evenly distributed to each energy storage module 201, ensuring that each energy storage module 201 receives the same or approximately the same amount of air intake. This better achieves a balanced air intake effect, thereby further improving the consistency of heat dissipation efficiency among the multiple energy storage modules 201 and ensuring more uniform heat dissipation among the multiple energy storage modules 201.

[0062] In some embodiments of the present disclosure, a third space 42 is formed in the cabinet 60 connecting the first space 40 and the second space 41, and air flows from the second space 41 into the third space 42, and the air in the third space 42 flows into the first space 40 to cool the energy storage module 201, thereby achieving rapid cooling of the energy storage module 201.

[0063] 33 to 35 , the energy storage cabinet 200 may further include an air conditioner 50, which may be installed in a cabinet 60. The air conditioner 50 is equipped with an air outlet 51 and an air inlet 52, the air outlet 51 being connected to the second space 41 and / or the first channel 43 in the cabinet 60, and the air inlet 52 being connected to the first space 40. When the air conditioner 50 is operating, cool air blows into the second space 41 from the air outlet 51 of the air conditioner 50. The cool air then flows into the third space 42 through the multiple first connection holes 44, and subsequently flows from the third space 42 into the first space 40, exchanging heat with the energy storage module 201 to cool the energy storage module 201. Finally, the air that has exchanged heat with the energy storage modules 201 flows into the air conditioner 50 through the air inlet 52 of the air conditioner 50, realizing continuous circulation of air that continuously carries heat away from the energy storage modules 201, thereby improving the heat dissipation efficiency of the multiple energy storage modules 201.

[0064] In some embodiments of the present disclosure, a third space 42 is formed within the first space 40. The third space 42 is connected to the second space 41 via a first connecting hole 44, and the third space 42 has a second connecting hole communicating with the first space 40. Air within the second space 41 is adapted to flow into the first space 40 via the third space 42. After flowing into the second space 41, the air flows into the third space 42 via the first connecting hole 44. After the air flows into the third space 42 via the first connecting hole 44, the air within the third space 42 flows into the first space 40 via the second connecting hole.

[0065] In some embodiments of the present disclosure, the air conditioner 50 is positioned outside the cabinet 60. Such an arrangement prevents the air conditioner 50 from occupying the interior space of the cabinet 60, thereby preserving sufficient assembly space for other components within the cabinet 60.

[0066] In some embodiments of the present disclosure, the dimension of the second space 41 along the first direction is larger than the dimension of the air inlet 52 along the same direction. This arrangement facilitates alignment between the second space 41 and the air inlet 52, allowing air within the second space 41 to easily flow into the air inlet 52.

[0067] In some embodiments of the present disclosure, as shown in Figures 33 to 35, a first channel 43 is also formed in the cabinet 60. The first channel 43 and the first space 40 are arranged along a first direction, and the first channel 43 is connected to the first space 40 and / or the third space 42. This means that the first channel 43 can be connected to the first space 40, the third space 42, or both the first space 40 and the third space 42. The present disclosure uses, as an example, an arrangement in which the first channel 43 is connected to the third space 42. Furthermore, the cabinet 60 has a base and a top plate 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 placed in the orientation shown in FIG. 35 , the first channel 43 is positioned above the first space 40, and the first channel 43 is connected to both 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 operating, cool air blows out from the air outlet 51 of the air conditioner 50, and a portion of this cool air flows into the second space 41 and another portion flows into the first channel 43. After entering the first channel 43, the air in the first channel 43 flows along the first channel 43 to the upper end of the third space 42. From there, the cool air flows downward toward the lower end of the third space 42, participating in a heat dissipation cycle and providing further cooling to the energy storage module 201. This increases the heat dissipation efficiency of the energy storage module 201, allowing heat to be removed from the energy storage module 201 more quickly.

[0068] In some embodiments of the present disclosure, as shown in FIGS. 33 and 35 , the cabinet body 61 forms a first opening communicating with the first space 40, the first opening facing the air inlet 52. The cabinet body 61 also forms a second opening communicating with the second space 41, the second opening facing the air outlet 51. The end of the first space 40 closer to the air inlet 52 opens to form the first opening, and the end of the second space 41 closer to the air outlet 51 opens to form the second opening. When the energy storage cabinet 200 is placed in the orientation shown in FIG. 35 , the front end of the first space 40 opens to form the first opening, and the front end of the second space 41 opens to form the second opening. Furthermore, the cabinet 60 includes the cabinet body 61 and an opening / closing door 62. The cabinet body 61 includes a base and a top plate and defines an installation cavity that is open at one end. Specifically, the cabinet body 61 defines an installation cavity that is open at its front end, and the first space 40, the second space 41, the third space 42, and the first channel 43 are formed in the installation cavity. The opening / closing door 62 is used to open or close the installation cavity. The air conditioner 50 is attached to the cabinet 60, and more specifically, the air conditioner 50 is attached to the opening / closing door 62. 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 channel 43. Since the air conditioner 50 is attached to the opening / closing door 62, both the air outlet 51 and the air inlet 52 of the air conditioner 50 are located on the opening / closing door 62. The end of the first space 40 near the air inlet 52 is open, the end of the second space 41 near the air outlet 51 is open, and the end of the first channel 43 near the air inlet 52 is also open, which facilitates the flow of cool air into the second space 41 and the first channel 43, and the flow of cool air from the first space 40 to the air inlet 52 of the air conditioner 50.

[0069] Furthermore, the first opening and the second opening are separated by a spacer (not shown), and in the process of air blowing into the second space 41, the air in the first space 40 simultaneously flows toward the air inlet 52 of the air conditioner 50. By using a spacer to separate the open end of the first space 40 from the open end of the second space 41, the inlet and outlet air flows are prevented from interfering with each other. This allows cool air to smoothly flow into the second space 41, and also allows the air that has undergone heat exchange in the first space 40 to smoothly flow into the air conditioner 50. Furthermore, this avoids contributing to noise generated by the energy storage cabinet 200.

[0070] In some embodiments of the present disclosure, the partition 63 is provided with the first connecting hole 44. Because the partition 63 divides the installation cavity into the first space 40, the second space 41, the third space 42, and the first channel 43, positioning the first connecting hole 44 in the partition 63 facilitates connection between the second space 41 and the third space 42 via the first connecting hole 44.

[0071] In some embodiments of the present disclosure, the third space 42 and the first space 40 are disposed in a third direction of the energy storage cabinet 200, where the third direction is perpendicular to both the first direction and the second direction. When the energy storage cabinet 200 is placed in the orientation shown in FIG. 35, the third direction of the energy storage cabinet 200 refers to the front-to-back direction in FIG. 35. This arrangement allows for a more compact internal structure within the energy storage cabinet 200.

[0072] 53 and 54 , the energy storage cabinet 600 may further include a positive power line 1001 and a negative power line 1002. 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 insertion into the connection terminal 202 of the energy storage module 201. Similarly, 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 insertion into the connection terminal 202 of the energy storage module 201. Specifically, multiple energy storage modules 201 are connected in series in sequence, and one end of the positive power line 1001 is electrically connected to the control unit 1000, and the other end of the positive power line 1001 can be electrically connected to the positive connection terminal 2029 of the energy storage module 201 located at the end. Similarly, one end of the negative power line 1002 is electrically connected to the control unit 1000, and the other end of the negative power line 1002 is electrically connected to the negative connection terminal 2030 of another energy storage module 201 located at the end. This configuration enables electrical connection between the control unit 1000 and the energy storage module 201, achieving the purpose of the control unit 1000 controlling the energy storage module 201.

[0073] In some embodiments of the present disclosure, the control unit 1000 may include a busbar module. One end of a positive power line 1001 is connected to the busbar module, and the other end of the positive power line 1001 is adapted to be inserted into the connection terminal 202 of an energy storage module 201. Similarly, one end of a negative power line 1002 is connected to the busbar module, and the other end of the negative power line 1002 is adapted to be inserted into the connection terminal 202 of an energy storage module 201. Specifically, multiple energy storage modules 201 are connected in series in sequence. One end of the positive power line 1001 is electrically connected to the busbar module, and the other end of the positive power line 1001 may be electrically connected to the positive connection terminal 2029 of an energy storage module 201 located at the end. One end of the negative power line 1002 is electrically connected to the busbar module, and the other end of the negative power line 1002 is electrically connected to the negative connection terminal 2030 of another energy storage module 201 located at the end. Such a configuration allows electrical connection between the busbar module and the energy storage module 201, achieving the purpose of the control unit 1000 controlling the operation of the energy storage module 201.

[0074] In some embodiments of the present disclosure, the positive power line 1001 and the negative power line 1002 are wire harnesses, and their positions within the energy storage cabinet 600 are adjustable. The connection ends of the positive power line 1001 and the negative power line 1002 to the energy storage modules 201 can be appropriately adjusted based on the positions of the energy storage modules 201 within the energy storage cabinet 600. For example, as shown in FIG. 54 , when the energy storage cabinet 600 is fully loaded with energy storage modules 201, the positive power line 1001 can be moved to the energy storage module 201 located at one end and electrically connected to 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 located at the end and electrically connected to the negative connection terminal 2030 of the energy storage module 201. Similarly, as shown in FIG. 53 , when the energy storage cabinet 600 is not fully loaded with energy storage modules 201, the positive power line 1001 and the negative power line 1002 can still be adjusted to connect to the respective terminals of the end energy storage module 201. Because the usage scenarios and total power consumption of electrical equipment vary, users have different requirements for the electrical power capacity of the energy storage cabinet 200. Furthermore, the energy storage cabinet 200 needs to be used with an inverter, and the diverse needs of users result in different demands on the inverter. The different operating voltage ranges of different inverter brands and models necessitate flexible voltage expansion. In this application example, when different numbers of energy storage modules 201 are installed 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, thereby enabling flexible configuration of the number of energy storage modules 201 in the energy storage cabinet 600 and obtaining energy storage cabinets 600 with different capacities to meet the diverse needs of users.

[0075] Furthermore, 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. As shown in FIGS. 53 and 54 , a wiring hole 1008 is provided in the partition 63, the wiring hole 1008 penetrates the partition 63, and the positive power line 1001 and the negative power line 1002 both pass through the wiring 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. This arrangement allows the positive power line 1001 and the negative power line 1002 to be connected between the control unit 1000 and the energy storage module 201.

[0076] It should be noted that the positive power line 1001 can be connected to the conductive bar 10, and by inserting the conductive bar 10 into the positive connection terminal 2029 of the energy storage module 201, the positive power line 1001 is electrically connected to the energy storage module 201. Similarly, the negative power line 1002 can also be connected to the conductive bar 10, and by inserting the conductive bar 10 into the negative connection terminal 2030 of the energy storage module 201, the negative connection terminal 2030 is electrically connected to the energy storage module 201.

[0077] As shown in FIGS. 3 to 5 , an energy storage module 201 according to an embodiment of the present disclosure includes an energy storage unit 220, a support beam 219, a first side panel 211, and a second side panel 212. The energy storage unit 220 includes a plurality of battery cells 208, which are sequentially arranged along the thickness direction of the battery cells 208. A first air duct 210 extending along a third direction is formed between at least two adjacent battery cells 208. The third direction is perpendicular to both the first direction and the second direction. The first air duct 210 is connected to the first space 40. When the energy storage unit 220 is placed in the orientation shown in FIG. 7 , the thickness direction of the battery cells 208 corresponds to the left-right direction shown in FIG. 7 . The energy storage unit 220 is disposed between the first side panel 211 and the second side panel 212. As shown in FIGS. 2 and 4 , the support beam 219 extends along the thickness direction of the battery cell 208, connects the first side plate 211 and the second side plate 212, and sandwiches the energy storage unit 220 therebetween. The support beam 219 is also installed between the first side plate 211 and the second side plate 212 to further sandwich 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. When the energy storage unit 220 is placed in the direction shown in FIG. 2 , the width direction of the battery cell 208 is the vertical direction of the energy storage module 201 in FIG. 2 . The support beam 219 can be provided on the upper side of the energy storage unit 220, the support beam 219 can be provided on the lower side of the energy storage unit 220, or the support beam 219 can be provided on both the upper and lower sides of the energy storage unit 220. For example, support beams 219 are provided on both the top and bottom sides of energy storage unit 220 .

[0078] 4, when the energy storage module 201 is placed in the orientation shown in FIG. 4, the first side panel 211 and the second side panel 212 are disposed on the left and right sides of the energy storage unit 220, respectively. The present disclosure uses, as an example, an arrangement in which the first side panel 211 is installed on the left side of the energy storage unit 220 and the second side panel 212 is installed on the right side of the energy storage unit 220. The support beam 219 connects the first side panel 211 and the second side panel 212, and the energy storage unit 220 is placed between the first side panel 211 and the second side panel 212. Therefore, after the support beam 219 is assembled, the first side panel and the second side panel can firmly hold the energy storage unit 220. This allows the energy storage unit 220 to be fixed within the energy storage module 201. There is no need to install brackets inside the energy storage module 201 to secure the battery cells 208, which increases the available space for arranging more battery cells 208 within the energy storage module, thereby increasing the energy density of the energy storage module 201. For an energy storage module 201 with the same energy density, the energy storage module 201 of the present disclosure has a smaller volume. Furthermore, by providing support beams 219 on both the upper and lower sides of the energy storage unit 220, the support beams 219 on the lower side of the energy storage unit 220 can support the energy storage unit 220, so that the energy storage unit 220 is firmly sandwiched between the first side plate 211 and the second side plate 212. At the same time, by sandwiching the energy storage unit 220 using the support beams 219, the first side plate 211, and the second side plate 212, the structure of the energy storage module 201 can be simplified, improving the assembly efficiency of the energy storage module 201 and, therefore, improving the production efficiency of the energy storage module 201.

[0079] Therefore, the energy storage unit 220 can be clamped by cooperation between the energy storage unit 220, the first side plate 211, the second side plate 212, and the support beam 219, simplifying the structure of the energy storage module 201 and improving the assembly efficiency of the energy storage module 201. In addition, there is no need to install brackets to fix the battery cells 208 inside the energy storage module 201. More battery cells 208 can be arranged in the energy storage module 201, which improves the energy density of the energy storage module 201. If the energy storage module 201 has the same energy density, the volume of the energy storage module 201 becomes smaller.

[0080] 1 and 3 , the energy storage module 201 may also include a top cover 213 and a bottom cover 214. In the width direction of the battery cells 208, the top cover 213 and the bottom cover 214 are located on two sides of the energy storage unit 220, respectively. When the energy storage module 201 is placed in the orientation shown in FIG. 1 , in the vertical direction shown in FIG. 1 , the top cover 213 is disposed on the upper side of the energy storage unit 220, and the bottom cover 214 is disposed on the lower side of the energy storage unit 220, the plurality of battery cells 208 are disposed between the first side plate 211 and the second side plate 212, and both the top cover 213 and the bottom cover 214 are connected to the first side plate 211 and the second side plate 212. Furthermore, both the top cover 213 and the bottom cover 214 are connected between the first side panel 211 and the second side panel 212, or both the first side panel 211 and the second side panel 212 are connected between the top cover 213 and the bottom cover 214, for example, both the top cover 213 and the bottom cover 214 are connected between the first side panel 211 and the second side panel 212. A second air duct 216 is formed between a surface of the energy storage unit 220 close to the top cover 213 and the top cover 213 and / or between a surface of the energy storage unit 220 close to the bottom cover 214 and the bottom cover 214 due to the separating effect of the support beams 219. That is, the second air duct 216 can be formed between a surface of the energy storage unit 220 close to the top cover 213 and the top cover 213 due to the separating effect of the support beam 219, or the second air duct 216 can be formed between a surface of the energy storage unit 220 close to the bottom cover 214 and the bottom cover 214 due to the separating effect of the support beam 219, and the second air duct 216 can also be formed between a surface of the energy storage unit 220 close to the top cover 213 and the top cover 213, and between a surface of the energy storage unit 220 close to the bottom cover 214 and the bottom cover 214.For example, the second air duct 216 is formed between a surface of the energy storage unit 220 close to the top cover 213 and the top cover 213, and between a surface of the energy storage unit 220 close to the bottom cover 214 and the bottom cover 214. In other words, the second air duct 216 is formed between the top cover 213 and the battery cells 208 and / or between the bottom cover 214 and the battery cells 208, for example, the second air duct 216 is formed both between the top cover 213 and the battery cells 208 and between the bottom cover 214 and the battery cells 208. The second air duct 216 is connected to the first space 40.

[0081] Specifically, the support beams 219 are provided between the surface of the energy storage unit 220 closest to the top cover 213 and the top cover 213, and between the surface of the energy storage unit 220 closest to the bottom cover 214 and the bottom cover 214. The support beams 219 between the energy storage unit 220 and the top cover 213 separate 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, and the support beams 219 between the energy storage unit 220 and the bottom cover 214 separate 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. The air outside the energy storage module 201 can flow into the second air duct 216, and after flowing into the second air duct 216, the air can exchange heat with the energy storage unit 220, and then the air will flow out of the energy storage module 201, thereby removing the heat of the battery cells 208, achieving a cooling effect, and improving the heat dissipation efficiency of the battery cells 208. Furthermore, by installing 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 on the two sides of the width of a single battery cell 208 can be controlled within 4 degrees, which allows for a more balanced temperature difference between different regions of the battery cell 208.

[0082] 2, 4, and 5, in order to divide the second air duct 216 into multiple sub-air ducts 217, the support beam 219 contacts a surface of the energy storage unit 220 near the top cover 213 and the top cover 213, and / or the support beam 219 contacts a bottom cover 214 of the energy storage unit 220 and a surface near the bottom cover 214, and the support beam 219 has an air passage 218 connecting two adjacent sub-air ducts 217. Furthermore, when the energy storage module 201 is placed in the orientation shown in FIG. 1, the support beam 219 located between the energy storage unit 220 and the top cover 213 contacts both the upper surface of the energy storage unit 220 and the top cover 213, and the support beam 219 located between the energy storage unit 220 and the bottom cover 214 contacts both the lower surface of the energy storage unit 220 and the bottom cover 214. The support beams 219 located between the energy storage unit 220 and the top cover 213 can divide the second air duct 216 into multiple sub-air ducts 217, and the support beams 219 located between the energy storage unit 220 and the bottom cover 214 can divide the second air duct 216 into multiple sub-air ducts 217. The multiple sub-air ducts 217 located between the energy storage unit 220 and the top cover 213 are arranged in sequence in the length direction of the battery cells 208, and the multiple sub-air ducts 217 located between the energy storage unit 220 and the bottom cover 214 are arranged in sequence in the length direction of the battery cells 208.

[0083] After air outside the energy storage module 201 flows into the sub-air duct 217, the air can flow into an adjacent sub-air duct 217 via the air passage 218. As the air flows, the air exchanges heat with the battery cells 208 and removes heat from the battery cells 208, and finally the air flows out of the energy storage module 201. Furthermore, by bringing the support beams 219 into contact with the energy storage unit 220, the support beams 219 located below the energy storage unit 220 can support the energy storage unit 220. Meanwhile, the support beams 219 located below the energy storage unit 220 and the support beams 219 located above the energy storage unit 220 sandwich the energy storage unit 220, thereby allowing the energy storage unit 220 to be firmly assembled within the energy storage module 201.

[0084] 2 and 4, a plurality of support beams 219 may be provided between the energy storage unit 220 and the top cover 213, and the plurality of support beams 219 between the energy storage unit 220 and the top cover 213 are spaced apart sequentially in the length direction of the battery cells 208 (i.e., the front-to-back direction in FIG. 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, and the plurality of support beams 219 between the energy storage unit 220 and the bottom cover 214 are spaced apart sequentially in the length direction of the battery cells 208. By simultaneously clamping the energy storage unit 220 with multiple support beams 219 and by clamping the energy storage unit 220 with the first side plate 211 and the second side plate 212, the energy storage unit 220 can be assembled more firmly within the energy storage module 201, and the first side plate 211 and the second side plate 212 can also clamp the energy storage unit 220 firmly.

[0085] In some embodiments of the present disclosure, as shown in Fig. 4, the support beam 219 spans all of the battery cells 208 along the thickness direction of the battery cells 208. As shown in Fig. 4, 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. By spanning all of the battery cells 208 along the thickness direction via the support beam 219 and then connecting the support beam 219 to the first side plate 211 and the second side plate 212, the first side plate 211 and the second side plate 212 can firmly sandwich the energy storage unit 220.

[0086] 5 , a limiting boss 221 protruding toward the energy storage unit 220 may be provided on an inner surface of the first side plate 211 close to the energy storage unit 220 and / or an inner surface of the second side plate 212 close to the energy storage unit 220. It may be understood that the limiting boss 221 may be provided on the inner surface of the first side plate 211 close to the energy storage unit 220, and that the limiting boss 221 may also be provided on the inner surface of the second side plate 212 close to the energy storage unit 220. The limiting boss 221 may also be provided on the inner surface of the first side plate 211 close to the energy storage unit 220 and the inner surface of the second side plate 212 close to the energy storage unit 220. After the support beam 219, the first side plate 211, and the second side plate 212 are assembled, the limiting boss 221 can compress the energy storage unit 220, so that the energy storage unit 220 is fixed within the energy storage module 201.

[0087] Furthermore, the support beam 219 overlaps the limiting boss 221. Specifically, as shown in FIG. 5 , the two ends of the support beam 219 located between the energy storage unit 220 and the top cover 213 overlap the upper surfaces of the limiting boss 221 of the first side plate 211 and the second side plate 212, respectively. The limiting boss 221 supports the support beam 219 between the energy storage unit 220 and the top cover 213, so that the support beam 219 can be securely assembled with the first side plate 211 and the second side plate 212. The two ends of the support beam 219 between the energy storage unit 220 and the bottom cover 214 overlap the lower surfaces of the limiting boss 221 of the first side plate 211 and the second side plate 212, respectively. The limiting boss 221 supports the support beam 219 between the energy storage unit 220 and the bottom cover 214, thereby preventing the support beam 219 between the energy storage unit 220 and the bottom cover 214 from excessively compressing the battery cells 208.

[0088] 5 , a third air duct 222 is formed in the restricting boss 221, and the third air duct 222 extends along the length of the battery cell 208. Because the restricting boss 221 is in contact with the energy storage unit 220, after the air flows into the third air duct 222, the air can exchange heat with the energy storage unit 220. When the air flows along the third air duct 222, the air can continuously remove heat from the energy storage unit 220, thereby achieving the effect of cooling the energy storage unit 220.

[0089] 5 , both the first side plate 211 and the second side plate 212 are provided with mounting holes 223 for assembling the support beams 219, with axes of the mounting holes 223 extending in the thickness direction of the battery cells 208, the mounting holes 223 on the first side plate 211 penetrating the first side plate 211 in the thickness direction of the first side plate 211, and the mounting holes 223 on the second side plate 212 penetrating the second side plate 212 in the thickness direction of the second side plate 212. First fasteners 224 passing through the mounting holes 223 and engaging with the support beams 219 enable the first side plate 211 and the second side plate 212 to firmly clamp the energy storage unit 220. There are a plurality of fasteners 224 and mounting holes 223, and the plurality of mounting holes 223 and the plurality of fasteners 224 are arranged in a one-to-one correspondence. The first fasteners 224 may be bolts or screws. The first fasteners 224 pass through corresponding mounting holes 223 from the outside of the first side plate 211 and the second side plate 212 and are then connected to the support beam 219 by threading, thereby fixing the first side plate 211 and the second side plate 212 together and allowing them to firmly sandwich the energy storage unit 220.

[0090] In some embodiments of the present disclosure, as shown in FIGS. 7 and 8 , the energy storage module 201 may also include a heat sink 209, which is disposed between at least two adjacent battery cells 208 among the plurality of battery cells 208. The heat sink 209 is in contact with the adjacent battery cells 208 and defines a first air duct 210 extending along the length of the battery cells 208. When the energy storage module 201 is disposed in the orientation shown in FIG. 7 , the length of the battery cells 208 corresponds to the front-to-rear direction in FIG. 7 . This arrangement allows the contact surface between the heat sink 209 and the battery cells 208 to be a large surface of the battery cells 208, which can improve the heat dissipation effect of the heat sink 209 on the battery cells 208. Furthermore, air (such as cool air) can flow into the first air duct 210 after entering the energy storage module 201. When the cool air flows through the first air duct 210, the cool air exchanges heat with the battery cells 208 and removes the heat generated by the battery cells 208, thereby achieving the effect of cooling the battery cells 208. After the air in the first air duct 210 flows out of the first air duct 210, the air can flow out of the energy storage module 201, thereby releasing heat from the energy storage module 201.

[0091] Furthermore, the first air duct 210 is connected to the first space 40. Cool air flows from the third space 42 into the first space 40 and then into the first air duct 210. When the cool air flows through the first air duct 210, the cool air exchanges heat with the battery cells 208 and removes the heat generated by the battery cells 208, thereby achieving the effect of cooling the battery cells 208. After the air in the first air duct 210 flows out of the first air duct 210, the air can flow into the air conditioner 50 through the air inlet 52 of the air conditioner 50.

[0092] In some embodiments of the present disclosure, as shown in FIGS. 5 , 7 , and 8 , the heat sink 209 defines a plurality of first air ducts 210, which are sequentially arranged along the width direction of the battery cells 208. When the energy storage module 201 is placed in the orientation shown in FIG. 7 , the width direction of the battery cells 208 is the vertical direction in FIG. 7 . This arrangement allows air to flow smoothly through the different first air ducts 210 and prevents vortex formation within the heat sink 209, thereby ensuring airflow velocity and facilitating air outflow from the heat sink 209, thereby quickly removing heat from the battery cells 208 and avoiding noise generated by the air within the heat sink 209.

[0093] In some embodiments of the present disclosure, as shown in FIGS. 7 and 8, a plurality of battery cells 208 may form a plurality of battery cell groups, and each group may include at least one battery cell 208. Furthermore, as shown in FIG. 7, every two battery cells 208 form one battery cell group, and two battery cells 208 located at the ends each form one battery cell group. A heat sink 209 is provided between two adjacent battery cell groups. This arrangement ensures that each battery cell 208 is in contact with at least one heat sink 209 so that each battery cell 208 has at least one heat sink 209 to dissipate its heat. The heat sink 209 may also be connected to a side of the battery cell 208 with a larger area, thereby increasing the heat dissipation area of ​​the battery cell 208 and reducing the temperature difference between various regions of the battery cell 208. At the same time, the arrangement of the multiple battery cells 208 and the heat sink 209 allows the heat sink 209 to provide support for the battery cells 208 , thereby improving the structural stability and safety of the energy storage module 201 .

[0094] In some embodiments of the present disclosure, as shown in FIGS. 4 and 12 , the energy storage module 201 may further include a drive fan 2061. The drive fan 2061 is located at one end of the energy storage unit 220 in the length direction of the battery cell 208, and is spaced apart from the energy storage unit 220. The drive fan 2061 is used to drive air to flow in and along the first air duct 210. Furthermore, as shown in FIG. 4 , when the energy storage module 201 is placed in the direction shown in FIG. 4 , the drive fan 2061 is located at the front end of the energy storage unit 220. Different types of fans may be selected as the drive fan 2061 based on specific heat dissipation requirements. When the drive fan 2061 is operating, the blades of the drive fan 2061 rotate, and under the driving of the drive fan 2061, the air in the first air duct 210 flows along the first air duct 210 toward the drive fan 2061, the heat generated by the battery cells 208 is removed by the air flow, and the air carried out by the drive fan 2061 is finally discharged outside the energy storage module 201. By installing the drive fan 2061, the air flow speed in the first air duct 210 can be increased, and the heat of the battery cells 208 can be removed more quickly, thereby improving the heat exchange efficiency of the heat sink 209.

[0095] Furthermore, the air conditioner 50 can be replaced with another type of blower, which should be connected to the battery management system in the same way as the air conditioner, and the blower should be located inside the cabinet 60 and outside the drive fan 2061.

[0096] 4 and 6, multiple drive fans 2061 can be installed, and the multiple drive fans 2061 are spaced apart sequentially along the thickness direction of the battery cells 208. It should be noted that the number of drive fans 2061 is positively correlated with the number of battery cells 208 in the energy storage module 201, i.e., the more battery cells 208 installed in the energy storage module 201, the more drive fans 2061 are installed, and the fewer battery cells 208 installed in the energy storage module 201, the fewer drive fans 2061 are installed. The present disclosure uses, as an example and for illustration purposes, an arrangement in which the energy storage module 201 is equipped with two drive fans 2061. By installing multiple drive fans 2061, the coverage area of ​​the drive fans 2061 can be enlarged, thus ensuring an improvement in the air flow rate of the first air duct 210 of each heat sink 209 in the energy storage module 201, thereby further improving the heat dissipation efficiency of the energy storage module 201.

[0097] In some embodiments of the present disclosure, as shown in FIG. 6 , the spacing distance A between any two adjacent driving fans 2061 along the thickness direction of the battery cell 208 satisfies the relationship 90 mm≦A≦100 mm. For example, the spacing distance between two adjacent driving fans 2061 is 98 mm. Setting the spacing distance A between two adjacent driving fans 2061 in the thickness direction of the battery cell 208, i.e., the left-right direction in FIG. 6 , ensures that the driving fans 2061 can drive airflow in the first air duct 210 located between the two driving fans 2061, allowing for faster heat dissipation from the battery cell 208 and therefore ensuring the heat exchange efficiency of the heat sink 209.

[0098] 6 , in some embodiments of the present disclosure, the spacing distance between the center of one of any two adjacent drive fans 2061 and the center of the other drive fan 2061 along the thickness direction of the battery cell 208 is B, where B satisfies the relationship 180 mm≦B≦200 mm. For example, the spacing distance between the center of one of two adjacent drive fans 2061 and the center of the other drive fan 2061 is 190 mm. Such an arrangement can further ensure that the drive fans 2061 can drive airflow in the first air duct 210 located between the two drive fans 2061, thereby more quickly removing heat from the battery cell 208 and further ensuring the heat exchange efficiency of the heat sink 209.

[0099] In some embodiments of the present disclosure, as shown in FIG. 6 , the spacing between the drive fan 2061 and the battery cell 208 in the length direction of the battery cell 208 is C, where C satisfies the relationship 40 mm≦C≦50 mm. For example, the spacing between the drive fan 2061 and the battery cell 208 is 45.6 mm. Furthermore, the spacing between the drive fan 2061 and the heat sink 209 in the length direction of the battery cell 208 is also C. This arrangement can further ensure that the drive fans 2061 can drive airflow in the first air duct 210 located between the two drive fans 2061, which can more quickly remove heat from the battery cell 208 and thereby further ensure the heat exchange efficiency of the heat sink 209. As a result, the spacing dimensions between the drive fans 2061 and the battery cell 208 and the spacing dimensions between the drive fan 2061 and the heat sink 209 are appropriate.

[0100] 6 , in the thickness direction of the battery cell 208, the distance D between the outermost surface of the heat sink 209 away from the drive fan 2061 and the adjacent drive fan 2061 satisfies the relationship 60 mm≦D≦70 mm. For example, the distance D between the outermost surface of the heat sink 209 away from the drive fan 2061 and the adjacent drive fan 2061 is 65.2 mm. Such an arrangement can ensure that the air in each first air duct 210 flows while being driven by the drive fan 2061, which can improve the temperature consistency of various regions of the energy storage module 201 and thereby ensure uniform heat dissipation of the energy storage module 201.

[0101] It should be noted that the larger the size of the driving fan 2061, the faster the airflow speed in the first air duct 210. In the width direction of the battery cells 208, the size of the driving fan 2061 is equal to or greater than the width of the battery cells 208. In this case, the size of the driving fan 2061 in the width direction of the battery cells 208 reaches 100% of the coverage of the battery cells 208, and the operating area of ​​the driving fan 2061 is circular, thereby achieving the maximum airflow in the first air duct 210 and ensuring the heat dissipation effect of the energy storage module 201. Furthermore, in the width direction of the energy storage module 201, the set size of the driving fan 2061 occupies 40% to 50% of the width of the energy storage module 201, for example, the set size of the driving fan 2061 occupies 44.62% of the width of the energy storage module 201.

[0102] In some embodiments of the present disclosure, in the thickness direction of the battery cell 208, the area of ​​the side surface (i.e., the large surface) of the battery cell 208 is S1, and the contact area between the heat sink 209 and the adjacent battery cell 208 is S2, which satisfies the relationship 0.90≦S2 / S1≦1, for example, S2 / S1 is 0.97. This arrangement ensures the contact area between the heat sink 209 and the adjacent battery cell 208, and can improve the heat exchange efficiency between the heat sink 209 and the battery cell 208.

[0103] 4 and 12 , the energy storage module 201 may further include a heat-dissipating end plate 206, on which the driving fan 2061 is installed, and which is fixedly connected to the first side plate 211 and / or the second side plate 212. It may also be understood that the heat-dissipating end plate 206 can be connected to the first side plate 211, or the heat-dissipating end plate 206 can be connected to the second side plate 212, or the heat-dissipating end plate 206 can be fixedly connected to both the first side plate 211 and the second side plate 212. 4 , the heat-dissipating end plate 206 is installed at the front ends of the first side plate 211 and the second side plate 212, and is connected to both the first side plate 211 and the second side plate 212. The heat-dissipating end plate 206 can be installed to the first side plate 211 and the second side plate 212 with bolts. The heat-dissipating end plate 206 is also spaced apart from the energy storage unit 220. The drive fan 2061 is installed on the heat-dissipating end plate 206 to allow the air in the first air duct 210 to flow along the first air duct 210 toward the front of the energy storage module 201 and to securely position the drive fan 2061 within the energy storage module 201.

[0104] 1 and 19 to 21, the energy storage module 201 may further include a connection piece 2083 and a busbar mounting rack 2084. A positive electrode post and a negative electrode post are provided at two ends of the battery cell 208 in the longitudinal direction. The connection piece 2083 is connected between the positive electrode post and the negative electrode post of two adjacent battery cells 208 to realize an electrical connection between the two adjacent battery cells 208. The busbar mounting rack 2084 is disposed between the heat dissipation end plate 206 and the energy storage unit 220. The connection piece 2083 is installed on the busbar mounting rack 2084. The busbar mounting rack 2084 can be fixedly attached to the first side plate 211 and the second side plate 212. For example, the bus bar mounting rack 2084 can be attached to the first side plate 211 and the second side plate 212 with bolts, or the bus bar mounting rack 2084 can be sandwiched between the first side plate 211 and the second side plate 212. The specific assembly format is not particularly limited. The heat dissipation end plate 206 is detachably attached to the bus bar mounting rack 2084, so that the heat dissipation end plate 206 is indirectly attached to the first side plate 211 and the second side plate 212.

[0105] 1 and 4, the energy storage module 201 may further include a fixed plate 2065, which is installed on the first side plate 211 and / or the second side plate 212. That is, the fixed plate 2065 can be installed on the first side plate 211, the fixed plate 2065 can also be installed on the second side plate 212, or the fixed plate 2065 can be installed on both the first side plate 211 and the second side plate 212 at the same time. Furthermore, a portion of the fixed plate 2065 connected to the side plate is configured as a flat plate structure. As shown in FIGS. 2 and 4, a handle 2066 can be provided on the fixed plate 2065. Furthermore, the handle 2066 is provided at an end of the fixed plate 2065 away from the side plate, and the portion of the fixed plate 2065 connected to the handle 2066 is configured as a flat plate structure. When the energy storage module 201 needs to be removed and put away, an attendant can lift the energy storage module 201 by grasping the handle 2066, thereby facilitating transport of the energy storage module 201. In some embodiments of the present disclosure, the heat dissipating end plate 206 can be fixedly connected to the fixed plate 2065, and the heat dissipating end plate 206 can be attached to the fixed plate 2065 using bolts.

[0106] 1, the energy storage module 201 may further include a fixing bracket 2067, which is installed on the first side plate 211 and / or the second side plate 212, for example, the fixing bracket 2067 is provided on both the first side plate 211 and the second side plate 212, the fixing bracket 2067 is located between the fixing plate 2065 and the heat-dissipating end plate 206, the fixing bracket 2067 is located inside the fixing plate 2065, and the fixing bracket 2067 is used to limit the position of the heat-dissipating end plate 206. As shown in FIGS. 1 and 4, the fixing bracket 2067 is provided on the front end of the first side plate 211 and the front end of the second side plate 212. The fixing bracket 2067 is disposed between the heat-dissipating end plate 206 and the side plates (i.e., the first side plate 211 and the second side plate 212) in the front-rear direction of the energy storage module 201. By installing the fixing bracket 2067 between the heat-dissipating end plate 206 and the side plates, the heat-dissipating end plate 206 can be spaced apart from the energy storage unit 220, providing installation space for arranging components such as the connecting piece 2083, i.e., installation space for arranging the busbar mounting rack 2084. Furthermore, due to the restrictive coupling between the fixing bracket 2067 and the heat-dissipating end plate 206, the fixing bracket 2067 can restrict the movement of the heat-dissipating end plate 206 in the width direction of the energy storage module 201, and the heat-dissipating end plate 206 and the busbar mounting rack 2084 can be reliably assembled. The fixing bracket 2067 is removably connected to the fixing plate 2065, and for example, the fixing bracket 2067 and the fixing plate 2065 are securely fixed together by bolts or screws. The heat dissipating end plate 206 can also be attached to the fixing bracket 2067 by bolts or screws.

[0107] 14 , an insertion post 2085 is provided on the fixing bracket 2067, and insertion holes 2086 are provided on both the first side plate 211 and the second side plate 212. When the fixing bracket 2067 is assembled with the first side plate 211, the insertion post 2085 is inserted into the insertion hole 2086 of the first side plate 211, and then the fixing bracket 2067 and the first side plate 211 are fixed together with a bolt. When the fixing bracket 2067 is assembled with the second side plate 212, the insertion post 2085 is inserted into the insertion hole 2086 of the second side plate 212, and then the fixing bracket 2067 and the second side plate 212 are fixed together with a bolt. This configuration allows the fixing bracket 2067 to be firmly installed on the first side plate 211 and the second side plate 212, which is convenient for disassembly and assembly of the fixing bracket 2067.

[0108] 4 and 13 , the heat dissipating end plate 206 is provided with a positive electrode connection terminal 2029 and a negative electrode connection terminal 2030, where the positive electrode connection terminal 2029 is connected to all positive output terminals of the energy storage units 220, and the negative electrode connection terminal 2030 is connected to all negative output terminals of the energy storage units 220. Furthermore, in the thickness direction of the battery cells 208, the positive electrode connection terminal 2029 and the negative electrode connection terminal 2030 are disposed near the same side of the heat dissipating end plate 206, for example, as shown in FIG. After the energy storage modules 201 are stacked in the energy storage cabinet, arranging the positive electrode connection terminal 2029 and the negative electrode connection terminal 2030 on the same side of the heat dissipation end plate 206 facilitates connection between the positive electrode connection terminal 2029 of one energy storage module 201 and the negative electrode connection terminal 2030 of the other energy storage module 201 in two adjacent energy storage modules 201, which can shorten the length of the conductive bar 10. The conductive bar 10 is connected between the positive electrode connection terminal 2029 and the negative electrode connection terminal 2030. Furthermore, the conductive bar 10 is plug-connected to both the positive electrode connection terminal 2029 and the negative electrode connection terminal 2030.

[0109] 4 and 13 , the heat-dissipating end plate 206 can define a mounting groove 2063, and the positive and negative connection terminals 2029 and 2030 are both disposed within the mounting groove 2063. Furthermore, the mounting groove 2063 is recessed from the outer surface of the heat-dissipating end plate 206 toward the inside of the heat-dissipating end plate 206. By disposing the positive and negative connection terminals 2029 and 2030 within the mounting groove 2063, the positive and negative connection terminals 2029 and 2030 can be hidden within the mounting groove 2063, thereby preventing the positive and negative connection terminals 2029 and 2030 from protruding from the outer surface of the heat-dissipating end plate 206 and interfering with other components.

[0110] 4 and 13, the heat dissipating end plate 206 further defines a foolproof slot 203, which is connected with the mounting groove 2063, and which is used for wiring (e.g., the conductive bar 10). Further, the foolproof slot 203 includes a first slot segment 20641, a second slot segment 20642, and a third slot segment 20643. The first slot segment 20641 and the third slot segment 20643 both extend in the height direction of the energy storage module 201, the second slot segment 20642 extends in the width direction of the energy storage module 201, one end of the second slot segment 20642 is connected to the first slot segment 20641, the other end of the second slot segment 20642 is connected to the third slot segment 20643, which is connected to the mounting groove 2063, and the shape of the conductive bar 10 is the same as the shape of the foolproof slot 203. As shown in FIG. 13 , the positive electrode connection terminal 2029 may be located to the left of the negative electrode connection terminal 2030. When multiple energy storage modules 201 are stacked in order, the conductive bar 10 is connected between two adjacent energy storage modules 201. The lower end of the conductive bar 10 is plugged into the positive electrode connection terminal 2029 of the underlying energy storage module 201, and the upper end of the conductive bar 10 is plugged into the negative electrode connection terminal 2030 of the underlying energy storage module 201, thereby achieving electrical connection between two adjacent energy storage modules 201. Furthermore, by positioning the conductive bar 10 within the foolproof slot 203, the foolproof slot 203 can guide the conductive bar 10 and prevent it from being installed incorrectly (e.g., the upper end of the conductive bar 10 and the negative electrode connection terminal 2030 of the underlying energy storage module 201, and the lower end of the conductive bar 10 and the negative electrode connection terminal 2030 of the underlying energy storage module 201).At the same time, hiding the conductive bar 10 in the foolproof slot 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.

[0111] 4 , the wiring slot 2064 is disposed above the mounting groove 2063, and the foolproof slot 203 is disposed below the mounting groove 2063. The wiring slot 2064 is disposed corresponding to the positive connection terminal 2029, and the foolproof slot 203 is disposed corresponding to the negative connection terminal 2030. When multiple energy storage modules 201 are stacked in order, a conductive bar 10 is connected between two adjacent energy storage modules 201, with the lower end of the conductive bar 10 inserted into the positive connection terminal 2029 of the lower energy storage module 201 and positioned within the wiring slot 2064 of the energy storage module 201, and the upper end of the conductive bar 10 inserted into the negative connection terminal 2030 of the upper energy storage module 201 and positioned within the foolproof slot 203 of the energy storage module 201, thereby connecting the two energy storage modules 201 in series. The wiring slot 2064 is used to avoid the conductive bar 10. The conductive bar 10 is hidden within the wiring slot 2064 to avoid interference between the conductive bar 10 and other components. The foolproof slot 203 and the wiring slot 2064 can both limit the position of the conductive bar 10.

[0112] In some embodiments of the present disclosure, the energy storage module 201 may also include a temperature detection component, which is used to collect the temperature of the energy storage unit 220. It should be noted that the temperature detection component may be installed as a temperature sensor. The driving fan 2061 and the temperature detection component are both suitable for connection to a battery management system of the energy storage module 201. The battery management system is used to adjust the rotation speed of the driving fan 2061 by receiving the temperature information collected by the temperature detection component. In other words, the battery management system is used to control the operation mode of the driving fan 2061 by receiving the temperature information detected by the temperature detection component.

[0113] The driving fan 2061 and the temperature detection component can be connected to the battery management system of the energy storage module 201 via a communication harness. The temperature detection component can detect the temperature of the energy storage unit 220 in real time. After the temperature detection component transmits the detected temperature information to the battery management system, the battery management system controls the rotation speed of the driving fan 2061 according to the received temperature information. For example, when the temperature of the energy storage unit 220 is high (e.g., above 35°C), the battery management system controls the driving fan 2061 to increase its rotation speed, for example, to rotate at full speed, thereby effectively cooling the energy storage module 201. When the temperature of the energy storage unit 220 is low (e.g., the temperature reaches 30°C), the battery management system controls the driving fan 2061 to decrease its rotation speed, for example, to rotate at half speed, thereby also effectively cooling the energy storage module 201. This arrangement realizes variable speed adjustment of the driving fan 2061 of the energy storage module 201 at different temperatures, and can adjust the driving fan 2061 to an appropriate speed to meet the heat dissipation requirements of the energy storage module 201, which helps to save electricity costs and has an important effect on improving heat dissipation efficiency and energy utilization rate. In addition, this arrangement maintains the temperature stability of the energy storage module 201 during operation, effectively supporting the stable output of the energy storage module 201.

[0114] 22, the energy storage module 201 can also be equipped with an information collector 2062 (BIC), which can be connected between the temperature detection component and the battery management system. Temperature information detected by the temperature detection component is transmitted to the battery management system via the information collector 2062. In addition, the driving fan 2061 is electrically connected to the information collector 2062 via a wiring harness. By drawing in power from outside via the information collector 2062, the driving fan 2061 is driven to rotate.

[0115] In some embodiments of the present disclosure, as shown in FIGS. 1, 2, and 32, the energy storage module 201 may further include a ventilation panel 207, in which a wiring slot 2064 is disposed on the side of the driving fan 2061 away from the energy storage unit 220 and an air outlet hole 20722 is provided. As shown in FIG. 1, the ventilation panel 207 and the heat-dissipating end plate 206 are both disposed on the front side of the energy storage unit 220, with the heat-dissipating end plate 206 located between the ventilation panel 207 and the energy storage unit 220, and the ventilation panel 207 is installed on the heat-dissipating end plate 206. Furthermore, the ventilation panel 207 can be installed on the heat-dissipating end plate 206 by magnetic attraction, or the ventilation panel 207 can be installed on the heat-dissipating end plate 206 by bolts. The specific assembly method of the ventilation panel 207 and the heat-dissipating end plate 206 is selected according to actual circumstances. When the driving fan 2061 is operating, the blades of the driving fan 2061 rotate. Under the operation of the driving fan 2061, the air in the first air duct 210 flows along the first air duct 210 toward the driving fan 2061, and the heat generated by the battery cells 208 is removed by the airflow. The air carried out by the driving fan 2061 is finally discharged to the outside of the energy storage module 201 through the air outlet holes 20722 on the ventilation panel 207, thereby achieving the function of dissipating hot air. In addition, the ventilation panel 207 can also shield the driving fan 2061 to prevent the driving fan 2061 from being exposed to the outside of the energy storage module 201.

[0116] 1 and 2 , the energy storage module 201 may further include an end plate 2081, which is disposed 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 to 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. The end plate 2081 may be directly or indirectly connected to both the top cover 213 and the bottom cover 214, and the end plate 2081 may be directly assembled with the top cover 213 and the bottom cover 214 by bolts. As shown in FIG. 1 , a busbar mounting rack 2084 may be provided between the end plate 2081 and the energy storage unit 220. The busbar mounting rack 2084 is directly or indirectly attached to the first side panel 211 and the second side panel 212. The busbar mounting rack 2084 is also provided with a connecting piece 2083. The end panel 2081 may be attached to the top cover 213 and / or the bottom cover 214, thereby realizing an indirect connection between the end panel 2081 and the first side panel 211 and the second side panel 212. In addition, the end panel 2081 is provided with a first air inlet hole 2082 communicating with the first air duct 210, allowing air to flow into the energy storage module 201 through the first air inlet hole 2082. A portion of the air flowing into the energy storage module 201 flows into the heat sink 209, and another portion of the air flows into the second air duct 216. As a result, the battery cells 208 are surrounded by air, thereby improving the heat dissipation efficiency of the battery cells 208.

[0117] Furthermore, an air supply hole 215 is provided in the energy storage module 201, and the air supply hole 215 connects the first space 40 and the second air duct 216. In the third direction, the air supply hole 215 is located in the center of the energy storage module 201, and it can also be understood that the air supply hole 215 is disposed at the central position of the energy storage module 201. Specifically, both the top cover 213 and the bottom cover 214 are provided with air supply holes 215 that communicate with the second air duct 216. After the cool air flows into the first space 40, the cool air in the first space 40 can flow into the second air duct 216 through the air supply hole 215, surrounding the battery cells 208 and thereby further improving the heat dissipation efficiency of the battery cells 208.

[0118] In some embodiments of the present disclosure, as shown in FIG. 1 , the top cover 213 and / or the bottom cover 214 are provided with air supply holes 215 communicating with the second air duct 216, for example, both the top cover 213 and the bottom cover 214 are provided with air supply holes 215 communicating with the second air duct 216, and cool air can flow into the second air duct 216 through the air supply holes 215, surrounding the battery cells 208 with the cool air, thereby further improving the heat dissipation efficiency of the battery cells 208.

[0119] 11 , the battery cells 208 have a flat shape similar to a blade, and the battery cells 208 may be a new type of lithium iron phosphate battery. The length dimension of the battery cells 208 is E, where E satisfies the relationship 400 mm≦E≦1500 mm, the width dimension of the battery cells 208 is F, where F satisfies the relationship 70 mm≦F≦150 mm, and the thickness dimension of the battery cells 208 is G, where G satisfies the relationship 10 mm≦G≦25 mm. This arrangement allows the flat-shaped battery cells 208 to be arranged within the energy storage module 201, and by sequentially arranging multiple battery cells 208 along the thickness direction of the battery cells 208, the energy density within the energy storage module 201 can be increased.

[0120] According to the energy storage cabinet of the embodiment of the present disclosure including the energy storage module 201 of the above embodiment, the energy storage module 201 has a simple structure that improves the assembly efficiency of the energy storage module 201, thereby improving the assembly efficiency of the energy storage cabinet. In addition, there is no need to install brackets to fix the battery cells 208 in the energy storage module 201, so more battery cells 208 can be placed in the energy storage module 201, which improves the energy density of the energy storage module 201 and the energy storage cabinet. If the energy storage module 201 has the same energy density, the sizes of the energy storage module 201 and the energy storage cabinet can be reduced.

[0121] 23 to 31 , an energy storage cabinet 200 can include an electrical connection assembly 100, which is used to electrically connect two energy storage modules 201, and the electrical connection assembly 100 is plugged into the energy storage modules 201, and the two energy storage modules 201 are connected via the electrical connection assembly 100, which is suitable for connecting between the two energy storage modules 201 to achieve an electrical connection between the two energy storage modules 201, thus connecting the two energy storage modules 201 in series or in parallel. For purposes of illustration, the present disclosure uses, as an example, an arrangement in which the electrical connection assembly 100 is connected between the two energy storage modules 201 to connect the two energy storage modules 201 in series. The energy storage module 201 is provided with a connection terminal 202, and two connection terminals 202 can be provided on each energy storage module 201, one of the two connection terminals 202 being configured as a positive connection terminal 2029 of the energy storage module 201, and the other of the two connection terminals 202 being configured as a negative connection terminal 2030 of the energy storage module 201.

[0122] As shown in FIGS. 23 to 31 , the electrical connection assembly 100 includes a conductive bar 10 and an insulating cover 20. The conductive bar 10 can be installed as a copper bar. The conductive bar 10 is suitable for plugging in two adjacent energy storage modules 201 to electrically connect the two energy storage modules 201, and the insulating cover 20 is covered on the conductive bar 10 and is suitable for connection with the energy storage modules 201. The conductive bar 10 is suitable for plugging in and matching with a connection terminal 202 to electrically connect the conductive bar 10 and the connection terminal 202. The insulating cover 20 is covered on the conductive bar 10. The insulating cover 20 can prevent the conductive bar 10 from jumping out of the connection terminal 202. The insulating cover 20 is connected to the connection terminal 202 and is suitable for pressing the conductive bar 10.

[0123] When two energy storage modules 201 need to be connected in series, a conductive bar 10 is inserted and connected to the positive electrode connection terminal 2029 of one of the two energy storage modules 201, and a conductive bar 10 is also inserted and connected to the negative electrode connection terminal 2030 of the other of the two energy storage modules 201, thus connecting the two energy storage modules 201 in series. The process of inserting the conductive bar 10 into the connection terminal 202 does not require the use of a tool such as a wrench to insert the conductive bar 10 into the connection terminal 202, which facilitates docking of the conductive bar 10 and the connection terminal 202, improves assembly efficiency of the conductive bar 10 and the connection terminal 202, and reduces installation costs for the conductive bar 10 and the connection terminal 202. At the same time, an insulating cover 20 is connected to the connection terminal 202 and presses the conductive bar 10. By pressing the conductive bar 10 through the insulating cover 20, the conductive bar 10 can be securely inserted into the connection terminal 202, which can avoid virtual connection between the conductive bar 10 and the connection terminal 202, prevent arc discharge, and improve the operational safety of the electrical connection assembly 100, as well as the operational safety of the energy storage module 201. In addition, the insulating cover 20 is an insulating component and is covered on the conductive bar 10, which can prevent the conductive bar 10 from being exposed, avoid electric leakage, and improve high-voltage safety.

[0124] 26 to 29 and 31 , the conductive bar 10 may include a first sub-conductive bar 11, a second sub-conductive bar 12, and a third sub-conductive bar 13. The first sub-conductive bar 11 and the third sub-conductive bar 13 are used for insertion and alignment with the corresponding connection terminals 202. The second sub-conductive bar 12 is connected between the first sub-conductive bar 11 and the third sub-conductive bar 13 to separate the first sub-conductive bar 11 and the third sub-conductive bar 13. As a result, avoidance spaces 14 are formed between the first sub-conductive bar 11 and the second sub-conductive bar 12 and between the third sub-conductive bar 13 and the second sub-conductive bar 12, and each avoidance space 14 is used to accommodate one connection terminal 202.

[0125] As shown in FIGS. 30 and 31 , the energy storage module 201 may be provided with a foolproof slot 203. The shape of the foolproof slot 203 matches the shape of the conductive bar 10. When two energy storage modules 201 need to be connected in series, the first sub-conductive bar 11 is inserted into the positive electrode connection terminal 2029 of one of the two energy storage modules 201, and the negative electrode connection terminal 2030 of the energy storage module 201 connected to the first sub-conductive bar 11 is located in the avoidance space 14 between the first sub-conductive bar 11 and the second sub-conductive bar 12. The third sub-conductive bar 13 is inserted into the negative electrode connection terminal 2030 of the other of the two energy storage modules 201, and the positive electrode connection terminal 2029 of the energy storage module 201 connected to the third sub-conductive bar 13 is located in the avoidance space 14 between the third sub-conductive bar 13 and the second sub-conductive bar 12. The conductive bar 10 is positioned within the foolproof slot 203, which restricts the conductive bar 10 along the length, width, and thickness directions of the conductive bar 10. This arrangement allows the conductive bar 10 to be hidden within the foolproof slot 203, prevents the conductive bar 10 from being scratched, and facilitates positioning of the conductive bar 10. In addition, the foolproof slot 203 is configured as a curved structure and assembled in cooperation with the conductive bar 10, thereby preventing the conductive bar 10 from being installed incorrectly and fulfilling a foolproof role.

[0126] In some embodiments of the present disclosure, one end of the second sub-conductive bar 12 is connected to the first sub-conductive bar 11, and the other end of the second sub-conductive bar 12 is connected to the third sub-conductive bar 13, with the first sub-conductive bar 11 and the third sub-conductive bar 13 extending away from each other. As shown in Figures 26 to 29 and 31, one end of the second sub-conductive bar 12 is connected to one end of the first sub-conductive bar 11, and the other end of the second sub-conductive bar 12 is connected to one end of the third sub-conductive bar 13. Furthermore, the second sub-conductive bar 12 is disposed perpendicular to the first sub-conductive bar 11 and the third sub-conductive bar 13. This arrangement can achieve the technical effect of forming avoidance spaces 14 between the first sub-conductive bar 11 and the second sub-conductive bar 12 and between the third sub-conductive bar 13 and the second sub-conductive bar 12, resulting in a rational arrangement of the first sub-conductive bar 11, the second sub-conductive bar 12, and the third sub-conductive bar 13. Furthermore, the conductive bar 10 can be configured in a "Z"-shaped structure. Configuring the conductive bar 10 in a "Z"-shaped structure and having the positive and negative connection terminals 2029 and 2030 lead out from the same side of the energy storage module 201 facilitates installation, disassembly, and maintenance of the electrical connection assembly 100.

[0127] In some embodiments of the present disclosure, as shown in FIGS. 26 to 28 , the conductive bar 10 is provided with a positioning groove 15, which is suitable for positioning and aligning with the connecting terminal 202. Furthermore, the positioning groove 15 penetrates the conductive bar 10 in the thickness direction of the conductive bar 10. The first sub-conductive bar 11 and the third sub-conductive bar 13 may be provided with a positioning groove 15, and the connecting terminal 202 may be provided with a limiting protrusion 2026. After the conductive bar 10 is inserted into the connecting terminal 202, the limiting protrusion 2026 extends into the positioning groove 15 of the conductive bar 10. The cooperation of the limiting protrusion 2026 and the positioning groove 15 allows the conductive bar 10 to be securely inserted into the connecting terminal 202, which can prevent the connecting terminal 202 and the conductive bar 10 from being separated, thereby further avoiding a virtual connection between the conductive bar 10 and the connecting terminal 202 and preventing the conductive bar 10 from swinging relative to the connecting terminal 202.

[0128] Furthermore, both the first sub-conductive bar 11 and the third sub-conductive bar 13 may be provided with a plurality of positioning grooves 15, and the connecting terminal 202 may be provided with a plurality of limiting protrusions 2026. Through the cooperation of the plurality of positioning grooves 15 and the plurality of limiting protrusions 2026, the conductive bar 10 may be more securely inserted into the connecting terminal 202, and the connecting terminal 202 and the conductive bar 10 may be prevented from being separated, thereby further avoiding a virtual connection between the conductive bar 10 and the connecting terminal 202, and further preventing the conductive bar 10 from swinging relative to the connecting terminal 202.

[0129] In some embodiments of the present disclosure, as shown in Figures 23, 28, and 29, the insulating cover 20 may include an insulating cover main body 21 and a first clamping portion 22, where the insulating cover main body 21 is covered on the conductive bar 10 and is suitable for pressing the conductive bar 10, and in the width direction of the insulating cover 20, when the electrical connection assembly 100 is placed in the direction shown in Figure 23, the width direction of the insulating cover 20 refers to the left-right direction in the figure, and the first clamping portion 22 is provided on at least one side of the insulating cover main body 21, for example, in the width direction of the insulating cover 20, the first clamping portion 22 is provided on both sides of the insulating cover main body 21, and the first clamping portion 22 is suitable for clamping with the connection terminal 202. 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, so that the insulating cover body 21 can be reliably pressed against the conductive bar 10, thereby further preventing virtual connection between the conductive bar 10 and the connecting terminal 202. The insulating cover body 21 is covered over the conductive bar 10, which serves as insulation protection, prevents electric leakage in the electrical connection assembly 100, and improves the operational safety of the electrical connection assembly 100. At the same time, clamping the insulating cover 20 and the connecting terminal 202 together simplifies disassembly and assembly of the insulating cover 20 and the connecting terminal 202, which improves the assembly efficiency of the insulating cover 20 and the connecting terminal 202.

[0130] In some embodiments of the present disclosure, when the electrical connection assembly 100 is placed in the orientation shown in FIG. 23 , the length direction of the insulating cover 20 refers to the front-to-rear direction shown in FIG. 23 , and a shielding portion 23 is provided at the end of the insulating cover body 21 away from the conductive bar 10, and the shielding portion 23 is used to shield the conductive bar 10. As shown in FIGS. 23 , 27 , and 29 , the connection terminal 202 defines an insertion slot 2023. When the electrical connection assembly 100 is placed in the orientation shown in FIG. 27 , the upper end of the insertion slot 2023 is open, and both the front end and the rear end of the insertion slot 2023 are open in the length direction of the insulating cover 20. The conductive bar 10 is pushed into the plug slot 2023 of the connection terminal 202 from the open end of the plug slot 2023 to achieve plug-in alignment between the conductive bar 10 and the connection terminal 202. After the conductive bar 10 is plugged into the plug slot 2023, the insulating cover 20 is installed on the connection terminal 202. The shielding portion 23 can shield the open end of the plug slot 2023 in the length direction of the insulating cover 20, thereby shielding the conductive bar 10 and preventing electrical leakage of the electrical connection assembly 100. Furthermore, the insulating cover 20 covers the top of the plug slot 2023, which limits the position of the conductive bar 10 and prevents the conductive bar 10 from jumping out of the plug slot 2023.

[0131] In some embodiments of the present disclosure, as shown in Figures 23, 26 to 28, an insulating sheath 30 is attached to the outside of the conductive bar 10, and the insulating sheath 30 has an insulating function. Furthermore, the insulating sheath 30 can be made of insulating adhesive. Furthermore, in the longitudinal direction of the conductive bar 10, at least a portion of the structure of the first sub-conductive bar 11 and the third sub-conductive bar 13 is exposed outside the insulating sheath 30. By attaching the insulating sheath 30 to the conductive bar 10, electric leakage of the conductive bar 10 can be avoided and electric shock after a user touches the conductive bar 10 can be prevented, thereby further improving the operational safety of the electrical connection assembly 100.

[0132] An energy storage module 201 is provided with a connection terminal 202, and a plurality of energy storage modules 201 are provided in an energy storage cabinet. The plurality of energy storage modules 201 are stacked in order in the height direction of the energy storage cabinet, and each energy storage module 201 is provided with two connection terminals 202, the two connection terminals 202 are arranged in the width direction of the energy storage module 201, the two connection terminals 202 are arranged at the same end of the energy storage module 201, 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. The electrical connection assembly 100 is used to electrically connect the two energy storage modules 201.

[0133] When two energy storage modules 201 need to be connected in series, a conductive bar 10 is inserted and connected to the positive electrode connection terminal 2029 of one of the two energy storage modules 201, and also inserted and connected to the negative electrode connection terminal 2030 of the other of the two energy storage modules 201 to connect the two energy storage modules 201 in series. The process of inserting the conductive bar 10 into the connection terminal 202 does not require the use of a tool such as a wrench to insert the conductive bar 10 into the connection terminal 202, which facilitates docking of the conductive bar 10 and the connection terminal 202 and improves the assembly efficiency of the conductive bar 10 and the connection terminal 202, thereby improving the assembly efficiency of the energy storage cabinet and reducing the installation costs of the conductive bar 10 and the connection terminal 202. At the same time, an insulating cover 20 is connected to the connection terminal 202 and presses against the conductive bar 10. By pressing the conductive bar 10 through the insulating cover 20, the conductive bar 10 can be securely inserted into the connection terminal 202, which avoids a virtual connection between the conductive bar 10 and the connection terminal 202, prevents arc discharge, and improves the operational safety of the electrical connection assembly 100, as well as the operational safety of the energy storage module 201, thereby improving the operational safety of the energy storage cabinet. In addition, the insulating cover 20 is an insulating component and is covered on the conductive bar 10, which prevents the conductive bar 10 from being exposed, avoids electric leakage, and improves high-voltage safety.

[0134] 31 , an energy storage module 201 is provided with two connection terminals 202, one of which is connected to the conductive bar 10 and the other of which is spaced apart from the conductive bar 10. Each energy storage module 201 is provided with two connection terminals 202, one of which is connected to the conductive bar 10 and the other of which is located within the avoidance space 14 formed by the conductive bar 10, so as to keep the connection terminals 202 spaced apart from the conductive bar 10 and avoid interference between the connection terminals 202 and the conductive bar 10. The two connection terminals 201 are disposed at the same end of the energy storage module 201, and the two connection terminals 201 are disposed adjacent to the same side of the energy storage module 201. It may also be understood that the energy storage module 201 is provided with a positive connection terminal 2029 and a negative connection terminal 2030, the positive connection terminal 2029 and the negative connection terminal 2030 being located adjacent to the same side of the energy storage module 201.

[0135] As shown in FIG. 31, when the electrical connection assembly 100 and the connection terminal 202 are placed in the orientation of FIG. 31, the positive connection terminal 2029 and the negative connection terminal 2030 are positioned adjacent to each other on the same side of the energy storage module 201, for example, the positive connection terminal 2029 and the negative connection terminal 2030 are positioned adjacent to each other on the left side of the energy storage module 201.

[0136] 26 and 27 , the connection terminal 202 may include a conductive elastic piece 2021 and an insulating terminal body 2022, where the terminal body 2022 defines an insertion slot 2023, and the conductive elastic piece 2021 is arranged in the insertion slot 2023. After the conductive bar 10 is inserted into the insertion slot 2023, the conductive bar 10 comes into contact with the conductive elastic piece 2021. Furthermore, when the electrical connection assembly 100 is placed in the direction shown in FIG. 27 , the upper end of the insertion slot 2023 is open, and both the front and rear ends of the insertion slot 2023 in the length direction of the insulating cover 20 are open, so that the conductive bar 10 is pushed into the insertion slot 2023 of the connection terminal 202 from the open end of the insertion slot 2023, bringing the conductive elastic piece 2021 into contact with the conductive bar 10, thereby achieving an electrical connection between the conductive bar 10 and the conductive elastic piece 2021.

[0137] Furthermore, as shown in Figures 26 and 27, the conductive elastic piece 2021 may include a first conductive elastic piece 2024 and a second conductive elastic piece 2025, where the first conductive elastic piece 2024 and the second conductive elastic piece 2025 are arranged opposite each other in the width direction of the connection terminal 202, the width direction of the connection terminal 202 coincides with the width direction of the insulating cover 20, and the conductive bar 10 is suitable for being inserted between the first conductive elastic piece 2024 and the second conductive elastic piece 2025. Furthermore, there are a plurality of first conductive elastic pieces 2024 and a plurality of second conductive elastic pieces 2025, which are arranged in sequence along the length direction of the connection terminal 202, and the plurality of first conductive elastic pieces 2024 and the plurality of second conductive elastic pieces 2025 correspond to each other one by one, and the length direction of the connection terminal 202 coincides with the length direction of the insulating cover 20. After the conductive bar 10 is pushed into the insertion slot 2023 of the connection terminal 202 from the open end of the insertion slot 2023, the conductive bar 10 is sandwiched between the first conductive elastic piece 2024 and the second conductive elastic piece 2025, which ensures reliable contact between the conductive bar 10 and both the first conductive elastic piece 2024 and the second conductive elastic piece 2025, thereby further avoiding virtual connection between the conductive bar 10 and the connection terminal 202.

[0138] 26 and 27, the conductive bar 10 is provided with a positioning groove 15, and at least one of the first conductive elastic piece 2024 and the second conductive elastic piece 2025 has a limiting protrusion 2026 that is suitable for extending into the positioning groove 15 of the conductive bar 10. The positioning groove 15 can penetrate the conductive bar 10 in the thickness direction of the conductive bar 10, and the first sub-conductive bar 11 and the third sub-conductive bar 13 are provided with the positioning groove 15, and both the first conductive elastic piece 2024 and the second conductive elastic piece 2025 are provided with the limiting protrusion 2026, and after the conductive bar 10 is inserted into the connecting terminal 202, the limiting protrusion 2026 extends into the positioning groove 15 of the conductive bar 10. The cooperation between the limiting protrusion 2026 and the positioning groove 15 ensures that the conductive bar 10 is securely inserted into the connecting terminal 202 and prevents the conductive elastic piece 2021 and the conductive bar 10 from being separated, thereby further preventing a virtual connection between the conductive bar 10 and the conductive elastic piece 2021 and preventing the conductive bar 10 from swinging relative to the connecting terminal 202. In addition, the limiting protrusion 2026 extends into the positioning groove 15 of the conductive bar 10, making it possible to determine whether the conductive bar 10 is properly inserted.

[0139] 23 and 26 , the connection terminal 202 may further include a conductive member 2027, which may be configured as a metal member, connected to the conductive elastic piece 2021, and suitable for being electrically connected to the energy storage module 201. Furthermore, one end of the conductive member 2027 extends into the insertion slot 2023 and is connected to the conductive elastic piece 2021. When the connection terminal 202 is installed on the energy storage module 201, the conductive member 2027 is connected between the conductive elastic piece 2021 and the energy storage module 201, so as to realize an electrical connection between the connection terminal 202 and the energy storage module 201.

[0140] In some embodiments of the present disclosure, as shown in FIGS. 23 and 26 , a first clamping portion 22 is provided on the insulating cover 20, and a second clamping portion 2028 is provided on the connecting terminal 202, and the second clamping portion 2028 is suitable for being clamped by the first clamping portion 22 of the insulating cover 20. In the width direction of the connecting terminal 202, the second clamping portions 2028 are provided on both sides of the connecting terminal 202, and each second clamping portion 2028 is connected to a first clamping portion 22. By clamping the second clamping portions 2028 with the first clamping portions 22 to improve the efficiency of disassembly and assembly of the insulating cover 20 and the connecting terminal 202, it becomes easy to install the insulating cover 20 on the connecting terminal 202 and to remove the insulating cover 20 from the connecting terminal 202. However, the present disclosure is not limited thereto, and the insulating cover 20 and the connecting terminal 202 can also be assembled using bolts. The specific assembly method of the insulating cover 20 and the connecting terminal 202 can be selected according to the actual situation.

[0141] 23 and 26, the first clamping portion 22 is one of a clamping hole and a clamping hook, and the second clamping portion 2028 is the other of a clamping hole and a clamping hook. For example, the first clamping portion 22 is a clamping hole, and the second clamping portion 2028 is a clamping hook. In the process of assembling the insulating cover 20 and the connection terminal 202, the insulating cover 20 is pressed to fit the clamping hook into the clamping hole, thereby completing the assembly of the insulating cover 20 and the connection terminal 202. This arrangement simplifies the structure of the first clamping portion 22 and the second clamping portion 2028, reduces the difficulty of manufacturing the insulating cover 20 and the connection terminal 202, and improves the manufacturing efficiency of the insulating cover 20 and the connection terminal 202.

[0142] In some embodiments of the present disclosure, the two ends of the insertion slot 2023 in the length direction of the connection terminal 202 are open, and the insulating cover body 21 is provided with a shielding portion 23, which is used to shield the open end of the insertion slot 2023 away from the conductive bar 10. When the connection terminal 202 is placed in the direction shown in FIG. 27 , the upper end of the insertion slot 2023 is open, and both ends of the insertion slot 2023 in the length direction of the connection terminal 202 are open, and the conductive bar 10 is pushed into the insertion slot 2023 of the connection terminal 202 from the open end of the insertion slot 2023, bringing the conductive elastic piece 2021 into contact with the conductive bar 10. After the conductive bar 10 is inserted into the insertion slot 2023, the insulating cover 20 is installed on the connection terminal 202, and the shielding portion 23 can shield the open end of the insertion slot 2023, thereby shielding the conductive bar 10 and further preventing leakage of electricity from the electrical connection assembly 100.

[0143] Furthermore, as shown in FIG. 23 , the connection terminal 202 is equipped with a mounting post 2031, which is connected to the energy storage module 201 by a bolt passing through the mounting post 2031, thereby firmly fixing the connection terminal 202 to the energy storage module 201.

[0144] It should be noted that first, multiple energy storage modules 201 are installed in the energy storage cabinet, and the multiple energy storage modules 201 are stacked in the height direction of the energy storage cabinet. Next, the conductive bar 10 is installed in the foolproof slot 203, and while the lower end of the conductive bar 10 is aligned with the connection terminal 202 of the lower energy storage module 201, the upper end of the conductive bar 10 is aligned with the connection terminal 202 of the upper energy storage module 201. The conductive bar 10 is firmly pressed so that it is firmly positioned between the first conductive elastic piece 2024 and the second conductive elastic piece 2025, until it can no longer be pushed into the insertion slot 2023.

[0145] In some embodiments of the present disclosure, the module assembly includes an energy storage module and a ventilation panel 207, and the energy storage module includes an energy storage unit 220 and a heat dissipating end plate 206.

[0146] The energy storage unit 220 is used to store and release electrical energy. The energy storage unit 220 generates heat during charging and discharging. The heat-dissipating end plate 206 is installed on one side of the energy storage unit 220. In other words, the heat-dissipating end plate 206 may be an end plate on one side of the exterior of the energy storage unit 220. The heat-dissipating end plate 206 provides support and protection for the energy storage unit 220. At the same time, the heat-dissipating end plate 206 is equipped with a driving fan 2061, which can increase the airflow speed passing through the energy storage unit 220, thereby improving the heat dissipation effect of the energy storage unit 220 and maintaining the operation of the energy storage unit 220 at an appropriate temperature. For example, the heat-dissipating end plate 206 is installed on one side of the energy storage unit 220 in the longitudinal direction, increasing the heat exchange area and heat exchange time between the airflow and the energy storage unit 220, thereby improving the heat dissipation effect of the energy storage unit 220.

[0147] The ventilation panel 207 is mounted on the outside of the heat-dissipating end plate 206. That is, the ventilation panel 207 is mounted on the side of the heat-dissipating end plate 206 away from the energy storage unit 220. The ventilation panel 207 can cover the heat-dissipating end plate 206. The ventilation panel 207 includes a panel frame 2071 and a ventilation grill 2072 fixed to the panel frame 2071. The panel frame 2071 is suitable for being fixed to the heat-dissipating end plate 206. The ventilation grill 2072 is used for ventilation and protection of the heat-dissipating end plate 206. To facilitate airflow through the ventilation grill 2072, the ventilation grill 2072 is hollowed out, ensuring the heat dissipation effect of the energy storage module 201. At the same time, the ventilation grille 2072 can also prevent foreign objects from entering the driving fan 2061 and the energy storage unit 220, ensuring the safety and reliability of the energy storage module 201. The foreign objects may be debris, insects, fingers, etc. In addition, the ventilation grille 2072 can visually shield the heat dissipation end plate 206, reducing the exposure of the driving fan 2061 and other electrical components on the heat dissipation end plate 206 and improving the neatness and aesthetics of the module assembly. Furthermore, the ventilation grille 2072 can also be equipped with a company logo to enhance product recognition of the module assembly.

[0148] It should be noted that the driving fan 2061 is a consumable part compared with the service life of the energy storage unit 220. When the driving fan 2061 requires maintenance or replacement due to a malfunction, the ventilation panel 207 is removed to expose the driving fan 2061 located on the heat-dissipating end plate 206. The direction of disassembly and assembly of the driving fan 2061 on the heat-dissipating end plate 206 is on the side of the heat-dissipating end plate 206 facing away from the energy storage unit 220. In other words, the direction of disassembly and assembly of the driving fan 2061 is on the ventilation panel 207 side of the heat-dissipating end plate 206. This allows maintenance or replacement of the driving fan 2061 without having to remove the heat-dissipating end plate 206, thereby improving the convenience of maintenance of the module assembly. As shown in FIG. 12, the driving fan 2061 is mounted to the side of the heat dissipating end plate 206 facing away from the energy storage unit 220 via a plurality of second fasteners 20611, which may be bolts.

[0149] According to the module assembly of the embodiment of the present disclosure, a heat-dissipating end plate 206 is provided on one side of the energy storage unit 220. A driving fan 2061 is provided on the heat-dissipating end plate 206. A ventilation panel 207 is provided on the outside of the heat-dissipating end plate 206. The ventilation panel 207 ensures the heat dissipation effect of the module assembly and prevents foreign objects from entering. Furthermore, the ventilation panel 207 can improve the maintenance convenience of the module assembly, thereby enhancing its market competitiveness.

[0150] In some embodiments of the present disclosure, the perforation rate α of the ventilation grille 2072 satisfies the following equation: α≧(μV / v) / S1, where μ is an empirical 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 ensuring that the heat dissipation end 206 meets the heat dissipation requirements of the energy storage module 201.

[0151] In a specific embodiment of the present disclosure, μ is a value such as 0.9 or 1.0, and when the drive fan 2061 is running at full power, the exhaust volume is 149.50 CFM, where 1 CFM=0.000472 m 3 / s, i.e., V is 0.070564 m 3 / s, the maximum air velocity 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 Figure 39), where L1 = L2 = 92 mm, i.e., S1 is 0.008464 m 2 Therefore, (μV / v) / S1=49%, that is, when the perforation rate α of the ventilation grille 2072 is 49% or more, the heat dissipation requirements of the energy storage module 201 can be met. At the same time, in order to ensure the shielding and protection effect of the ventilation grille 2072 on the heat dissipation end plate 206 and its aesthetic appearance, it is preferable that the perforation rate α of the ventilation grille 2072 is, for example, 50%.

[0152] Furthermore, the perforation rate α of the ventilation grille 2072 also satisfies the following formula: α≦70%. It can be understood that if α is greater than 70%, the strength of the ventilation grille 2072 is relatively weak, making the ventilation grille 2072 more susceptible to breakage and poor in ability to prevent foreign objects from entering the driving fan 2061 and the energy storage unit 220.

[0153] In some embodiments of the present disclosure, as shown in FIG. 38 , the ventilation grill 2072 includes a plurality of air induction grills 20721 arranged at intervals. Both ends of each air induction grill 20721 are fixed to the panel frame 2071, and air outlet holes 20722 are formed between adjacent air induction grills 20721. The air outlet holes 20722 have equal widths, i.e., the widths of the air outlet holes 20722 in the air flow direction are equal, and the width of the air outlet holes 20722 is D1. The air induction grills 20721 have equal widths, i.e., the widths of the air induction grills 20721 in the air flow direction are equal, and the width D2 of the air induction grills 20721 satisfies the following formula: 0.6≦D1 / D2≦1.4. The air outlet holes and air induction grills with equal widths facilitate the production and manufacturing of the ventilation grill 2072. At the same time, when the air outlet holes 20722 and the air guide grille 20721 have the same width, D1 / D2 is approximately equal to the perforation rate α of the ventilation grille 2072. By setting 0.6≦D1 / D2≦1.4, the width dimension of the air outlet holes 20722 is appropriate, which can improve the heat dissipation effect of the energy storage module 201, and the ventilation grille 2072 can prevent foreign objects from entering the driving fan 2061 and the energy storage unit 220.

[0154] In certain embodiments of the present disclosure, the ventilation panel 207 is manufactured using an integrated injection molding process, where D1 / D2=1, where D1 is 2 mm and D2 is 2 mm, which facilitates demolding of the ventilation panel 207 and improves the yield of the ventilation panel 207.

[0155] In another embodiment of the present disclosure, as shown in FIGS. 42 and 43 , 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 air outlet holes 20722 are formed between adjacent air guide grilles 20721. The width of the air outlet holes 20722 in the air flow direction gradually narrows, and the minimum width of the air outlet holes 20722 is D3. The width of the air guide grille 20721 in the air flow direction gradually widens, and the maximum width D4 of the air guide grille 20721 satisfies the following formula: 0.6≦D3 / D4≦1.4. This ensures the ventilation effect of the ventilation grille 2072 and prevents small foreign objects from entering the energy storage module 201 through the air outlet holes 20722.

[0156] It can be understood that the width of the air outlet holes 20722 is variable, and the width of the air induction grille 20721 is also variable. When the driving fan 2061 is driven to blow air toward the ventilation grille 2072, the innermost width of the air outlet holes 20722 is wider than its outermost width, while the innermost width of the air induction grille 20721 is narrower than its outermost width, and D3 / D4 is approximately equal to the perforation rate α of the ventilation grille 2072. If D3 / D4<0.6, the minimum width of the air outlet holes 20722 is too small, causing the ventilation grille 2072 to cause insufficient heat dissipation of the energy storage module 201. If D3 / D4>1.4, the minimum width of the air outlet holes 20722 is too large, making it difficult for the ventilation grille 2072 to prevent foreign objects from entering the driving fan 2061 and the energy storage unit 220.

[0157] When the driving fan 2061 is driven to blow air toward the energy storage unit 220, the innermost width of the air outlet holes 20722 is smaller than its outermost width, and the innermost width of the air guide grille 20721 is greater than its outermost width. If D3 / D4<0.6, the maximum width of the air outlet holes 20722 is too small, causing the ventilation grille 2072 to cause insufficient heat dissipation of the energy storage module 201. If D3 / D4>1.4, the maximum width of the air outlet holes 20722 is too large, making it difficult for the ventilation grille 2072 to prevent foreign objects from entering the driving fan 2061 and the energy storage unit 220.

[0158] 43 , the innermost width of the air outlet holes 20722 is greater than its outermost width, and the innermost width of the air induction grill 20721 is smaller than its outermost width. It can be understood that the innermost width of the air outlet holes 20722 refers to the width of the air outlet holes 20722 on the side closer to the panel frame 2071, the outermost width of the air outlet holes 20722 refers to the width of the air outlet holes 20722 on the side farther from the panel frame 2071, the innermost width of the air induction grill 20721 refers to the width of the air induction grill 20721 on the side closer to the panel frame 2071, and the outermost width of the air induction grill 20721 refers to the width of the air induction grill 20721 on the side farther from the panel frame 2071. That is, the width of the air outlet holes 20722 on the side closer to the driving fan 2061 is greater than the width on the side farther from the driving fan 2061, and the width of the air induction grille 20721 on the side closer to the driving fan 2061 is smaller than the width on the side farther from the driving fan 2061. The air outlet holes 20722 can be designed to form an inverted flare structure in the direction of the airflow, which helps to reduce the resistance to the airflow exiting the driving fan 2061 caused by the air outlet holes 20722 and the air induction grille 20721. This design enhancement promotes better heat dissipation efficiency of the module assembly.

[0159] 43 , the angle β between the air induction sidewall of the air induction grille 20721 and the air flow direction satisfies the following formula: 5°≦β≦15°, for example, β may be 5°, or 10°, or 15°. This design reduces the resistance to the air flow exiting from the driving fan 2061 caused by the air outlet holes 20722 and the air induction grille 20721. When β is less than 5°, the reduction in the resistance to the air flow exiting from the driving fan 2061 is not significant. On the other hand, when β is greater than 15°, the strength of the air induction grille 20721 will be impaired, and the air induction grille 20721 will be prone to deformation and vibration under the force of the exiting air flow.

[0160] In some embodiments of the present disclosure, the material used for ventilation panel 207 is PPO (polyphenylene oxide), which has good toughness, heat resistance, flame retardancy, abrasion resistance, oxidation resistance, and weather resistance, among other advantages. The life cycle of PPO is at least equivalent to the life cycle of energy storage unit 220 (10-15 years), and it can remain undeformed even when exposed to hot air for a long time.

[0161] In some embodiments of the present disclosure, multiple air induction grilles 20721 are arranged at equal intervals along the fourth direction, so that the air induction grilles 20721 and the air outlet holes 20722 are evenly distributed on the ventilation grille 2072. The protrusion length D5 of the air induction grille 20721 in the fourth direction and the protrusion length D6 of the panel frame 2071 in the fourth direction satisfy the following formula: 0.002≦D5 / D6≦0.006. This ensures that the ventilation grille 20722 has a sufficient number of air induction grilles 20721, so that both the air induction grilles 20721 and the air outlet holes 20722 are arranged relatively closely, which improves the uniformity of the air permeability of the ventilation grille 2072 and prevents small foreign objects from entering the interior of the module assembly through the air outlet holes 20722.

[0162] The fourth direction may coincide with the first and second directions. For example, as shown in FIG. 7, the fourth direction may be the length direction of the panel frame 2071, and the protruding length D6 of the panel frame 2071 in the fourth direction is the length of the panel frame 2071. The length of the panel frame 2071 may be equal to or similar to the length of the heat dissipation end plate 206. The protruding length D5 of the air guide grille 20721 in the fourth direction is the maximum width of the air guide grille 20721. If D6 is 531.4 mm, the protruding length D5 of each air guide grille 20721 in the fourth direction may be 2 mm to ensure uniform air permeability through the ventilation grille 2072 and prevent the passage of foreign objects.

[0163] In some embodiments of the present disclosure, as shown in FIGS. 9 and 43 , the height H of the air induction grille 20721 extending outward from the panel frame 2071 satisfies the following ratio relationship: 1≦H / D5≦4. This ensures that the air induction grille 20721 has sufficient strength. This also enables the air induction grille 20721 to guide the airflow when it passes through the air outlet holes 20722 located between the two air induction grilles 20721, preventing the airflow from branching and generating turbulence, thereby helping to improve the heat dissipation effect of the driving fan 2061. The height H of the air induction grille 20721 extending outward from the panel frame 2071 can be understood to be the protruding length of the air induction grille 20721 along a straight line in the airflow direction. For example, if D5 is 2 mm, any size of H may be 4 mm.

[0164] In some embodiments of the present disclosure, the air induction grille 20721 is a straight air induction grille, and the angle δ between the length direction of the straight air induction grille and the length direction of the panel frame 2071 satisfies the following range: 0°≦δ≦180°. The straight air induction grille is convenient to manufacture and allows the ventilation panel 207 to form a harmonious and aesthetically pleasing overall visual effect. In some specific embodiments, when δ=90°, the ventilation panel 207 is as shown in FIG. 32. When δ=0°, the ventilation panel 207 is as shown in FIG. 44. When δ=45°, the ventilation panel 207 is as shown in FIG. 45. When δ=135°, the ventilation panel 207 is as shown in FIG. 46.

[0165] In other embodiments of the present disclosure, the air induction grille 20721 may be a curved air induction grille that extends along a bent or curved path.

[0166] In some embodiments of the present disclosure, the energy storage unit 220 includes a plurality of battery cells, which are spaced apart along the thickness of the battery cells to form heat-dissipating air passages extending along the length of the battery cells. These air passages have a large heat exchange area with the battery cells, and a heat-dissipating end plate 206 is positioned at one end of the battery cells along the length to enhance the heat dissipation effect of the energy storage unit 220.

[0167] 4 and 12, the heat dissipating end plate 206 is provided with multiple driving fans 2061, which are equally spaced along the length of the heat dissipating end plate 206. This ensures uniform heat dissipation from the energy storage unit 220, avoids localized overheating of the energy storage unit 220, and prevents the risk of thermal runaway from occurring in the energy storage unit 220.

[0168] 12 , 47 , and 48 , a first mounting portion 2069 is provided on the heat-dissipating end plate 206, and a second mounting portion 2079 corresponding to the first mounting portion 2069 is provided on the ventilation panel 207. One of the first mounting portion 2069 and the second mounting portion 2079 is equipped with a magnetic component 20691, and the other is provided with a magnetic connecting piece 20791. The ventilation panel 207 and the heat-dissipating end plate 206 are connected by the magnetic attraction between the magnetic component 20691 and the magnetic connecting piece 20791, and the ventilation panel 207 can be easily installed on or removed from the heat-dissipating end plate 206 without using an installation tool, thereby improving the efficiency of installation and removal of the ventilation panel 207. At the same time, when the magnetic component 20691 and the magnetic connecting piece 20791 are attracted to each other, the assembly gap between the ventilation panel 207 and the heat dissipation end plate 206 becomes small and uniform, and the ventilation panel 207 is less likely to shake. The magnetic force does not affect the positioning operation of the ventilation panel 207 relative to other components, thereby improving the operational performance of the ventilation panel 207 and preventing improper installation.

[0169] Furthermore, in the process of installing and removing the ventilation panel 207, damage to the first mounting portion 2069 and the second mounting portion 2079 is relatively small, 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-dissipating end plate 206. Compared with conventional connection structures such as screw connections and buckles, the ventilation panel 207 and the heat-dissipating end plate 206 of the embodiments of the present disclosure have better reliability even after repeated disassembly and assembly.

[0170] It should be noted that the magnetic component 20691 and the magnetic connecting piece 20791 can attract each other by magnetic force, facilitating the installation and removal of the ventilation panel 207, thereby increasing the convenience of installing and maintaining the module assembly, reducing the cost of installing and maintaining the module assembly, and ultimately improving the user experience. In some embodiments of the present disclosure, the magnetic component 20691 is a magnet having magnetic properties, and the magnetic connecting piece 20791 is iron, cobalt, nickel, and alloys thereof suitable for being attracted by the magnetic component 20691. In other embodiments of the present disclosure, the magnetic component 20691 and the magnetic connecting piece 20791 are magnets with opposite poles facing each other.

[0171] In some embodiments of the present disclosure, first mounting portion 2069 includes a first mounting base 20692 and second mounting portion 2079 includes a second mounting base 20792. One of magnetic component 20691 and magnetic linking piece 20791 is secured to first mounting base 20692 and the other is secured to second mounting base 20792, such that magnetic component 20691 and magnetic linking piece 20791 are secured to ventilation panel 207 and heat dissipating end plate 206, respectively.

[0172] In one embodiment of the present disclosure, as shown in Figures 47 and 48, the magnetic component 20691 is fixed to a first mounting base 20692 of the heat dissipation end plate 206, and the magnetic connecting piece 20791 is fixed to a second mounting base 20792 of the ventilation panel 207.

[0173] In another embodiment of the present disclosure (not shown), the magnetic connecting piece 20791 is fixed to a first mounting base 20692 of the heat dissipating end plate 206, and the magnetic component 20691 is fixed to a second mounting base 20792 of the ventilation panel 207.

[0174] In some embodiments of the present disclosure, both the magnetic component 20691 and the magnetic linking piece 20791 can be strip-shaped structures. The first mounting base 20692 is constructed as a first mounting groove suitable for fixed engagement with the magnetic component 20691 or the magnetic linking piece 20791. The magnetic component 20691 or the magnetic linking piece 20791 can be connected to the first mounting groove by a welding connection, a buckle connection, a bolt connection, an adhesive connection, etc., and the second mounting base 20792 is constructed as a second mounting groove suitable for fixed engagement with the magnetic component 20691 or the magnetic linking piece 20791, and the magnetic component 20691 or the magnetic linking piece 20791 can be connected to the second mounting groove by a welding connection, a buckle connection, a bolt connection, an adhesive connection, etc.

[0175] 12, 47, and 48, the first mounting base 20692 is located on the side of the heat dissipating end plate 206 facing the energy storage unit 220, and the second mounting base 20792 is located on the side of the ventilation panel 207 facing the heat dissipating end plate 206. After the heat dissipating end plate 206 and the ventilation panel 207 are assembled, the first mounting base 20692 and the second mounting base 20792 are hidden.

[0176] 12, 47, and 48, the first mounting portion 2069 includes a first positioning component 20693, and the second mounting portion 2079 includes a second positioning component 20793. The first positioning component 20693 is adapted to align and mate with the second positioning component 20793, such that the magnetic component 20691 and the magnetic coupling piece 20791 are aligned and attracted to each other, ensuring that the ventilation panel 207 is accurately installed on the heat dissipating end plate 206.

[0177] In one embodiment, the positioning engagement between the first positioning component 20693 and the second positioning component 20793 can be a pin-and-hole engagement or a slide rail-and-slide groove engagement.

[0178] In some embodiments of the present disclosure, one of the first positioning element 20693 and the second positioning element 20793 is a positioning hole, and the other is a positioning pin corresponding to the positioning hole. The positioning hole and the positioning pin have a simple structure that is easy to manufacture and highly reliable. When the positioning pin is inserted into the positioning hole, the magnetic element 20691 is directly aligned with the magnetic connecting piece 20791, facilitating accurate installation of the ventilation panel 207 on the heat dissipation end plate 206, thus reducing the difficulty of installing the ventilation panel 207 and improving installation efficiency.

[0179] In one embodiment of the present disclosure, as shown in FIGS. 12, 47, and 48, the first locating component 20693 is a locating hole and the second locating component 20793 is a locating pin.

[0180] In another embodiment of the present disclosure (not shown), the first locating element 20693 is a locating pin and the second locating element 20793 is a locating hole.

[0181] In some embodiments of the present disclosure, as shown in FIG. 47 , the locating pin is provided with a guide surface 20794 that is suitable for guiding engagement with the inner wall surface of the locating hole, thereby facilitating insertion of the locating pin into the locating hole and improving assembly efficiency. The guide surface 20794 may be a conical guide surface disposed on the end of the locating pin toward the locating hole. When the locating pin is inserted into the locating hole, the conical guide surface enters the locating hole first and slides inward along the inner wall surface of the locating hole, aligning the axis of the locating pin with the axis of the locating hole.

[0182] In some embodiments of the present disclosure, the cross-sectional shape of the locating pin includes at least one of a rectangle, a circle, a T-shape, and a cross-shape. When the cross-section of the locating pin is a circle, the locating pin and the locating hole that fits with the locating pin are convenient for processing and manufacturing. When the cross-section of the locating pin is a rectangle, a T-shape, or a cross-shape, the locating pin can be prevented from rotating or shaking within the locating 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-section of the locating pin is the projection of the locating pin on a plane perpendicular to the installation direction of the locating pin.

[0183] In some embodiments of the present disclosure, the ventilation panel 207 is provided with a plurality of second mounting portions 2079, such as four or eight, spaced apart around the circumference of the ventilation panel 207. The heat dissipating end plate 206 is provided with a plurality of first mounting portions 2069 that correspond one-to-one to the plurality of second mounting portions 2079, thereby facilitating an improved reliability of the connection between the ventilation panel 207 and the heat dissipating end plate 206 and preventing the ventilation panel 207 from falling off.

[0184] In some embodiments of the present disclosure, as shown in FIG. 47 , the ventilation panel 207 includes a panel frame 2071 and a ventilation grille 2072 fixed to the panel frame 2071. A second mounting portion 2079 is disposed on the panel frame 2071, and the panel frame 2071 can be fixed to the heat-dissipating end plate 206 via the second mounting portion 2079. The ventilation grille 2072 can be hollowed out to form an air duct, allowing the airflow blown out or sucked in by the driving fan 2061 to pass through the ventilation grille 2072 and ensuring the heat dissipation effect of the energy storage module 201. At the same time, the ventilation grille 2072 can also protect the heat-dissipating end plate 206 and prevent foreign objects from entering the driving fan 2061 and the energy storage unit 220, thus ensuring the safety and reliability of the energy storage module 201.

[0185] It should be noted that the driving fan 2061 is a consumable part compared with the service life of the energy storage unit. When the driving fan 2061 requires maintenance or replacement due to a malfunction, the ventilation panel 207 is removed to expose the driving fan 2061 located on the heat-dissipating end plate 206. The direction of disassembly and assembly of the driving fan 2061 on the heat-dissipating end plate 206 is on the side of the heat-dissipating end plate 206 facing away from the energy storage unit 220. In other words, the direction of disassembly and assembly of the driving fan 2061 is on the ventilation panel 207 side of the heat-dissipating end plate 206. This allows maintenance or replacement of the driving fan 2061 without having to remove the heat-dissipating end plate 206, thereby improving the convenience of maintenance of the module assembly. 12, the drive fan 2061 is mounted to the heat dissipating end plate 206 on the side facing away from the energy storage unit 220 via a plurality of second fasteners 20611, which may be bolts. According to another embodiment of the present disclosure, the energy storage cabinet 200 includes the module assembly of the previously described embodiments.

[0186] As shown in FIGS. 49 and 30 , multiple module assemblies can be arranged within an energy storage cabinet 200, and electrical connections are required between the energy storage modules 201 of these module assemblies. The electrical connection terminals 202 of each energy storage module 201 can at least partially penetrate the heat-dissipating end plate 206. The connection terminals 202 of two adjacent energy storage modules 201 can be connected by an electrical connection assembly 100. A ventilation panel 207 can shield at least a portion of the connection terminals 202 and the electrical connection assemblies 100, preventing people from touching them and reducing the risk of electric shock. At the same time, if the number of energy storage modules 201 in the energy storage cabinet 200 needs to be increased or decreased, the connection terminals 202 on the heat-dissipating end plate 206 can be exposed by removing the ventilation panel 207, facilitating assembly and disassembly of the electrical connection assemblies 100 and thus improving the convenience of maintenance of the energy storage cabinet 200. In one embodiment, to facilitate disassembly and assembly of the ventilation panel 207 and electrical connection assembly 100, the heat dissipating end plate 206 of each energy storage module 201 in the energy storage cabinet 200 can be positioned toward the cabinet door of the energy storage cabinet 200.

[0187] According to the energy storage cabinet 200 of the embodiment of the present disclosure, a heat-dissipating end plate 206 is provided within the module assembly. A driving fan 2061 is provided on the heat-dissipating end plate 206. A ventilation panel 207 is provided on the outside of the heat-dissipating end plate 206. The ventilation panel 207 ensures the heat dissipation effect of the module assembly and prevents foreign objects from entering. The ventilation panel 207 can also improve the convenience of maintenance of the module assembly, thereby enhancing its market competitiveness.

[0188] 49 through 52 provide detailed depictions of an energy storage cabinet 200 according to an embodiment of the present disclosure.

[0189] 49 to 52, the energy storage cabinet 200 includes an energy storage module 201 and a high-voltage distribution box.

[0190] The energy storage module 201 includes a driving fan 2061 and an information collector (BIC) 2062. The information collector 2062 can sample parameters such as the voltage and temperature of the battery cells in the energy storage module 201. The battery cells generate heat during charging and discharging, and the driving fan 2061 can be used to cool the battery cells to maintain an appropriate operating temperature. The information collector 2062 includes an integrated output terminal 20621, a signal input terminal 20622, and a power input terminal 20623. The integrated output terminal 20621 is connected to both the signal input terminal 20622 and the power input terminal 20623. The driving fan 2061 is connected to the integrated output terminal 20621, and the information collector 2062 provides power and a control signal to the driving fan 2061 via the integrated output terminal 20621.

[0191] The high-voltage distribution box 299 (PDU) includes a signal output terminal and a power output terminal. The signal output terminal is connected to the signal input terminal 20622. The high-voltage distribution box 299 provides a control signal to the signal input terminal 20622 via the signal output terminal. The power output terminal is connected to the power input terminal 20623, and the high-voltage distribution box 299 supplies power to the power input terminal 20623 via the power output terminal. The high-voltage distribution box 299 can generate a control signal for controlling the driving fan 2061 based on the temperature of the battery cells. The control signal is output from the signal output terminal, flows into the information collector 2062 via the signal input terminal 20622, and can then be transmitted to the driving fan 2061 via the integrated output terminal 20621. This process allows the rotation speed of the driving fan 2061 to be adjusted to ensure that the rotation speed meets the heat dissipation requirements of the battery cells. At the same time, the high-voltage distribution box 299 also supplies power to the driving fan 2061. The power supply current is output from the power supply pull-out terminal and flows into the information collector 2062 via the power supply input terminal 20623. Then, the power supply current is transmitted to the driving fan 2061 via the integrated output terminal 20621, thereby realizing the power supply to the driving fan 2061.

[0192] It should be noted that the information collector 2062 may be constructed of a printed circuit board (PCB) and electronic components electrically connected thereon. The integrated output terminal 20621, the signal input terminal 20622, and the power input terminal 20623 may all be sockets on the printed circuit board. The signal input terminal 20622 and the integrated output terminal 20621 are connected via a second internal conductive line within the printed circuit board, and the power input terminal 20623 and the integrated output terminal 20621 are connected via a third internal conductive line within the printed circuit board. The integrated output terminal 20621 can transmit both power supply current and control signals to the drive fan 2061. In one embodiment, the second and third internal conductive lines may be copper foils within the printed circuit board.

[0193] It can be understood that the information collector 2062 integrates a portion of the external lines that supply power to the drive fan 2061 and a portion of the external lines that transmit control information for the drive fan 2061, and outputs the power supply current and control signal via the integrated output terminal 20621, thereby helping to reduce the complexity of the external lines between the high-voltage distribution box 299 and the energy storage module 201, and facilitating the layout and maintenance of the energy storage cabinet 200.

[0194] In some embodiments of the present disclosure, the energy storage module 201 further includes a battery cell and a heat-dissipating end plate 206. The heat-dissipating end plate 206 is located on one side of the battery cell. The driving fan 2061 and the information collector 2062 are both located on the heat-dissipating end plate 206. The driving fan 2061 can be connected to the integrated output terminal 20621 via an external integrated line 206111 so that the driving fan 2061 receives power current and control signals. To shorten the length of the external integrated line 206111, the driving fan 2061 and the information collector 2062 can be disposed adjacent to each other. In addition, based on the heat dissipation requirements of the battery cell, the energy storage module 201 can be equipped with one or more driving fans 2061, all of which can be installed on the heat-dissipating end plate 206. Furthermore, multiple driving fans 2061 on the heat dissipation end plate 206 can be connected to the integrated output terminal 20621 via the same external integrated line 206111, thus further reducing the complexity of external lines within the energy storage cabinet 200.

[0195] According to the energy storage cabinet 200 of the embodiment of the present disclosure, both 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 via the information collection integrated output terminal 20621. This arrangement helps to reduce the complexity of external wiring within the energy storage cabinet 200 and facilitate its assembly, inspection, and maintenance.

[0196] 49 and 50 , an 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 input terminal 20623 of each energy storage module 201 is connected to the power draw-out terminal via a first external power line, which facilitates the layout of the first external power line within the energy storage cabinet 200 and reduces bending of the first external power line.

[0197] The first direction may be the height direction of the energy storage cabinet 200. That is, multiple energy storage modules 201 in the energy storage cabinet 200 may be stacked along the height direction of the energy storage cabinet 200, with the heat dissipation end plates 206 having the driving fans 2061 and information collectors 2062 of each energy storage module 201 facing the same direction and aligned along the stacking direction. This arrangement is advantageous for the layout of the first external power line in the energy storage cabinet 200 and reduces bending of the first external power line.

[0198] 51 , the first external power line includes multiple power supply branches 2063, and the number of power supply branches 2063 corresponds to the number of energy storage modules 201. In other words, the number of power supply branches 2063 is the same as the number of energy storage modules 201. Each power supply branch 2063 includes a main branch line 20631 and a sub-branch line 20634 connected in parallel to the main branch line 20631. The main branch lines 20631 of the multiple power supply branches 2063 are connected in sequence to form a main power supply circuit. The sub-branch lines 20634 of the multiple power supply branches 2063 are respectively connected to corresponding power supply input terminals 20623, thereby realizing a parallel connection between the driving fans 2061 on each energy storage module 201 and the main power supply circuit.

[0199] It can be understood that the number of energy storage modules 201 in the energy storage cabinet 200 can be adjusted according to energy storage demand. The first external power line is divided into multiple detachable power branches 2063, and the number of the power branches 2063 can correspond to the number of energy storage modules 201. This arrangement ensures that redundancy and waste of the first external power line can be avoided when there are few energy storage modules 201 in the energy storage cabinet 200, thereby reducing the cost of the energy storage cabinet 200 and the complexity of the external wiring in the energy storage cabinet 200, and facilitating its assembly, inspection, and maintenance.

[0200] In some embodiments of the present disclosure, as shown in Fig. 51, a male connector 20632 is provided at one end of a branch main line 20631, and a female connector 20633 is provided at the other end. Of two adjacent branch main lines 20631, the male connector 20632 of one branch main line 20631 is plugged into the female connector 20633 of the other branch main line 20631, which makes it easy to install, disassemble, and maintain multiple branch main lines 20631.

[0201] 50 and 51 , the information collector 2062 also includes a clamping sheet 20625, and the male connector 20632 and / or the female connector 20633 are suitable for being fixed by the clamping sheet 20625. In other words, either the male connector 20632 or the female connector 20633 are suitable for being fixed by the clamping sheet 20625, or both the male connector 20632 and the female connector 20633 are suitable for being fixed by the clamping sheet 20625, thereby facilitating control of the routing of the first external power supply line and avoiding heat generation and signal interference caused by crossing of the first external power supply line. At the same time, this can also prevent the male connector 20632 and the female connector 20633 from loosening at the connection point and improve the reliability of the plug-in connection between the male connector 20632 and the female connector 20633. In one embodiment, the sandwiching sheet 20625 can be fixed to the outside of the printed circuit board of the information collector 2062.

[0202] In some embodiments of the present disclosure, the information collector 2062 further 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 cut off, thereby increasing the service life and reliability of the driving fan 2061.

[0203] In some embodiments of the present disclosure, the first fuse is a self-recovery fuse. When a short circuit or overcurrent occurs in the circuit between the power supply input terminal 20623 and the integrated output terminal 20621, the large current flowing through the first fuse causes the first fuse to form a high resistance state, thereby limiting and protecting the circuit between the power supply input terminal 20623 and the integrated output terminal 20621. After the fault is removed, the first fuse returns to a low resistance state, allowing the circuit between the power supply input terminal 20623 and the integrated output terminal 20621 to be conductive, thereby avoiding manual replacement of the first fuse and reducing maintenance costs of the energy storage cabinet 200.

[0204] 52 , the information collector 2062 further includes a power output terminal 20624 and a first internal conductive line. The power output terminal 20624 is connected to the power 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 collectors 2062 of each energy storage module 201 are aligned in the first direction. The power input terminal 20623 of one of the plurality of energy storage modules 201 is connected to the power draw-out terminal, and the power input terminals 20623 of the remaining energy storage modules 201 are connected to the power output terminal 20624 of the upstream adjacent energy storage module 201 via a second external power line 2065, thereby shortening the length of the second external power line 2065 and facilitating their layout within the energy storage cabinet 200. An upstream adjacent energy storage module 201 may be understood to refer to the adjacent energy storage module 201 through which the power supply current flows first.

[0205] It should be noted that the information collector 2062 may be constructed as a printed circuit board (PCB) and electronic components electrically connected thereon. The integrated output terminal 20621, the signal input terminal 20622, the power input terminal 20623, and the power output terminal 20624 may all be sockets on the printed circuit board. The power output terminal 20624 and the power input terminal 20623 are connected via a first internal conductive line within the printed circuit board, and the signal input terminal 20622 and the integrated output terminal 20621 are connected via a second internal conductive line within the printed circuit board. The integrated output terminal 20621 is connected in parallel with the first internal conductive line via a third internal conductive line. The integrated output terminal 20621 can transmit both a power supply current and a control signal to the drive fan 2061. In one embodiment, the first internal conductive line, the second internal conductive line, and the third internal conductive line may be copper foil within the printed wiring board.

[0206] Multiple energy storage modules 201 within an energy storage cabinet 200 can be stacked along the height of the energy storage cabinet 200, with the heat dissipation end plates 206, including the driving fans 2061 and information collectors 2062, of each energy storage module 201 facing the same direction and aligned along the stacking direction. This arrangement is advantageous for the layout of the second external power lines within the energy storage cabinet 200 and reduces bending of the second external power lines. At the same time, the number of second external power lines 2065 may be the same as the number of energy storage modules 201. The two ends of the second external power lines 2065 are connected to the power input terminal 20623 and the power output terminal 20624 of the adjacent energy storage module 201, respectively, so that the first internal conductive lines within the adjacent energy storage module 201 are connected to form a main power circuit. At the same time, the integrated output terminal 20621 of each energy storage module 201 is also connected in parallel with the first internal conductive line, allowing the driving fan 2061 on each energy storage module 201 to be connected in parallel with the main power circuit.

[0207] In some embodiments of the present disclosure, the number of energy storage modules 201 in an energy storage cabinet 200 can be adjusted according to energy storage demand. The energy storage module 201 closest to the high-voltage distribution box 299 in the energy storage cabinet 200 can be designated as the most upstream energy storage module. The power input terminal 20623 of the most upstream energy storage module is connected to the power draw-out terminal, and the power input terminals 20623 of the remaining energy storage modules 201 are connected to the power output terminals 20624 of their upstream adjacent energy storage modules 201 via second external power lines 2065. The number of second external power lines 2065 corresponds to the number of energy storage modules 201. This arrangement ensures that redundancy and waste of second external power lines can be avoided when there are few energy storage modules 201 in the energy storage cabinet 200, thereby reducing the cost of the energy storage cabinet 200 and the complexity of the external lines within the energy storage cabinet 200 and facilitating its assembly, inspection, and maintenance.

[0208] For example, the energy storage cabinet 200 includes a first energy storage module, a second energy storage module, and a third energy storage module stacked from bottom to top. The first energy storage module located at the bottom is closest to the high-voltage distribution box 299 and functions as the most upstream energy storage module. The power input terminal 20623 of the first energy storage module is connected to the power draw terminal. The power input terminal 20623 of the second energy storage module is connected to the power output terminal 20624 of the first energy storage module connected upstream via a second external power line 2065. Similarly, the power input terminal 20623 of the third energy storage module is connected to the power output terminal 20624 of the second energy storage module connected upstream via another second external power line 2065. Power current flows from the power draw terminal through the information collectors 2062 of the first, second, and third energy storage modules in sequence.

[0209] Furthermore, as shown in FIG. 52 , among the multiple energy storage modules 201 in the energy storage cabinet 200, the power output terminal 20624 of one energy storage module 201 is close to the power input terminal 20623 of another adjacent energy storage module 201, which is beneficial for shortening the length of the second external power line 2065, facilitating the layout of the second external power line 2065, and preventing interference between multiple second external power lines 2065.

[0210] In some embodiments of the present disclosure, the information collector 2062 further includes a second fuse, which is connected in series in the circuit between the power input terminal 20623 and the power output terminal 20624. This provides overload protection for each information collector 2062 in the main power circuit. When the current between the power input terminal 20623 and the power output terminal 20624 abnormally rises to a second preset current threshold, the second fuse can cut off the electrical connection between the power input terminal 20623 and the power output terminal 20624, thereby contributing to the service life and reliability of the second external power line 2065.

[0211] In some embodiments of the present disclosure, the second fuse is a self-recovering fuse. When a short circuit or overcurrent occurs in the circuit between the power supply input terminal 20623 and the power supply output terminal 20624, the 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 supply input terminal 20623 and the power supply output terminal 20624. After the fault is removed, the second fuse returns to a low resistance state, allowing the circuit between the power supply input terminal 20623 and the power supply output 20624 to be conductive, thereby avoiding manual replacement of the second fuse and reducing maintenance costs of the energy storage cabinet 200.

[0212] 50 , 51 , and 52 , the information collector 2062 also includes a signal output terminal 20626. Among the multiple energy storage modules 201, the signal input terminal 20622 of one information collector 2062 is connected to the signal output terminal, and the signal input terminals 20622 of the remaining information collectors 2062 are connected to the signal output terminal 20626 of the upstream adjacent energy storage module 201 via the external signal line 2066. This arrangement shortens the length of the external signal line 2066 and facilitates the layout of the second external power line 2065 within the energy storage cabinet 200. It may be understood that the upstream adjacent energy storage module 201 refers to the adjacent energy storage module 201 through which control information flows first.

[0213] It can be understood that the number of energy storage modules 201 in the energy storage cabinet 200 can be adjusted according to energy storage demand. The energy storage module 201 closest to the high-voltage distribution box 299 in the energy storage cabinet 200 can be designated as the most upstream energy storage module. The signal input terminal 20622 of the most upstream energy storage module is connected to the signal output terminal, and the signal input terminals 20622 of the remaining energy storage modules 201 are connected to the signal output terminals 20626 of their upstream adjacent energy storage modules 201 via external signal lines 2066. The number of external signal lines 2066 corresponds to the number of energy storage modules 201. This arrangement ensures that redundancy and waste of the external signal lines 2066 can be avoided when there are few energy storage modules 201 in the energy storage cabinet 200, thereby reducing the cost of the energy storage cabinet 200 and the complexity of the external lines within the energy storage cabinet 200 and facilitating its assembly, inspection, and maintenance.

[0214] For example, the energy storage cabinet 200 includes a first energy storage module, a second energy storage module, and a third energy storage module stacked from bottom to top. The first energy storage module located at the bottom is closest to the high-voltage distribution box 299 and functions as the most upstream energy storage module. The signal input terminal 20622 of the first energy storage module is connected to the signal output terminal 20626 of the first energy storage module connected upstream via an external signal line 2066. Similarly, the signal input terminal 20622 of the third energy storage module is connected to the signal output terminal 20626 of the second upstream energy storage module via another external signal line 2066. Control information can be transmitted from the signal output terminal to the information collectors 2062 of the first, second, and third energy storage modules.

[0215] In some embodiments of the present disclosure, the control signal includes ID information and control information. Upon receiving and transmitting the control signal, the information collector 2062 of each energy storage module 201 can process the control signal to identify whether the ID information in the control signal matches that of its own information collector 2062. If the ID information matches, control information corresponding to the ID information is sent to the drive fan 2061 connected to that information collector 2062. If the ID information does not match, no response is made.

[0216] For example, if the high-voltage distribution box 299 needs to control the driving fan 2061 of the first energy storage module to increase its rotation speed by 5%, the high-voltage distribution box 299 generates a first control signal. The first control signal includes the ID information of the information collector 2062 of the first energy storage module and control information for increasing the rotation speed of the driving fan 2061 by 5%. The first control signal can be broadcast to the information collectors 2062 of the first, second, and third energy storage modules. The information collector 2062 of the first energy storage module recognizes that the ID information matches and sends corresponding control information to the driving fan 2061 connected to its integrated output terminal 20621, thereby increasing the rotation speed of the driving fan 2061 of the first energy storage module by 5%.

[0217] In some embodiments of the present disclosure, as shown in FIGS. 50 and 51 , the information collector 2062 also includes a first clamping groove 20627, which can be used to secure the external signal line 2066 and facilitates controlling the routing of the external signal line 2066.

[0218] In some embodiments of the present disclosure, as shown in FIG. 50 and FIG. 51 , the information collector 2062 further includes a second clamping groove 20628, which can be used to fix the power supply branch 2063 and facilitates controlling the routing of the power supply branch 2063.

[0219] In some embodiments of the present disclosure, a switching power supply can be integrated into the high voltage power distribution box 299, which can convert 220V AC mains electricity through ADC conversion and allow the power draw terminals to output 24V DC power.

[0220] In another embodiment of the present disclosure, a BMS (Battery Management System) main board can be integrated into the high voltage power distribution box 299. The BMS main board can take samples from the battery cells of the energy storage module 201 and output 24V DC power through the power draw terminals.

[0221] 49, a high-voltage distribution box 299 is provided on the left side of the energy storage cabinet 200 (i.e., on the left side of the energy storage module 201). The high-voltage distribution box 299 can route the main power supply lines and the main control lines from below the energy storage module 201. The main power supply lines are equipped with power lead-out terminals, and the main control lines are equipped with signal lead-out terminals.

[0222] In some embodiments of the present disclosure, as shown in FIGS. 33 and 35 , a control switch 1003 may be provided in the energy storage cabinet 200. The control switch 1003 is provided in the cabinet 60 and communicates with the control unit 1000. When the door 62 is opened, the control switch 1003 is triggered to instruct the control unit 1000 to shut down the energy storage cabinet 200. If the door 62 is opened while the energy storage cabinet 200 is still operating, a malfunction may easily create a risk of electric shock to the operator. In the present disclosure, by installing the control switch 1003, when the door 62 is opened, the control switch 1003 is triggered, and the change in state is detected by the control unit 1000. In response, the control unit 1000 shuts down the energy storage cabinet 200. This prevents a situation in which the energy storage cabinet 200 continues to operate after the door 62 is opened, thereby improving the operational safety of the energy storage cabinet 200.

[0223] In some embodiments of the present disclosure, the energy storage cabinet 200 may further include a smoke detection device, which may be configured as a smoke sensor. The smoke detection device is provided within the cabinet and communicates with the control unit 1000. When the smoke detection device detects smoke, the control unit 1000 shuts down the energy storage cabinet 200. When a fire breaks out within the energy storage cabinet 200, the smoke sensor sends a signal to the control unit 1000, which then sends an alert to a higher-level system and shuts down the energy storage cabinet 200, effectively preventing a fire from breaking out within the energy storage cabinet 200.

[0224] 33 and 35 , the energy storage cabinet 200 may also include an audible and visual alarm device 1004, which is provided on the outside of the cabinet 200 and communicates with a control unit 1000. The control unit 1000 controls the audible and visual alarm device 1004 to issue an alarm message. The audible and visual alarm device 1004 may be an audible and visual alarm. When a fire occurs in the energy storage cabinet 200, the control unit 1000 shuts down the energy storage cabinet 200. At the same time, the control unit 1000 controls the audible and visual alarm device 1004 to issue an alarm, for example, the audible and visual alarm device 1004 issues an alarm sound and flashes a red light to alert a user that a fire has occurred in the energy storage cabinet 200.

[0225] 33 and 35 , the energy storage cabinet 200 may also include an emergency stop switch 1005, which communicates with the control unit 1000. When the emergency stop switch 1005 is triggered, the control unit 1000 shuts down the energy storage cabinet 200. In the event of an emergency, pressing the emergency stop switch 1005 triggers the control unit 1000, allowing the energy storage cabinet 200 to be shut down without the need to open the access door 62.

[0226] In some embodiments of the present disclosure, insulating cotton is attached to the inner surface of the cabinet 60, and the thickness of the insulating cotton is 30 mm to 50 mm. Furthermore, the thickness of the insulating cotton can be set to 40 mm. By installing the insulating cotton, the heat dissipation coefficient of the entire energy storage cabinet 200 can be reduced. Furthermore, a reinforcing plate 1006 can be installed on the opening and closing door 62 to protect the insulating cotton and increase the strength of the opening and closing door 62.

[0227] In some embodiments of the present disclosure, the cabinet 60 can be made of explosion-proof panels. For example, the entire structure of the cabinet 60 can be made of explosion-proof panels, or a portion of the structure of the cabinet 60 can be made of explosion-proof panels. Furthermore, to protect personnel safety in extreme situations, the top panel of the cabinet 60 is made of explosion-proof panels. In some embodiments, the explosion-proof panels can be replaced with regular sheet metal, or can be replaced with a top panel made of other process materials without explosion-proof capabilities.

[0228] In some embodiments of the present disclosure, the energy storage cabinet 200 may also include caster wheels, which are attached to the bottom end of the cabinet 60. The caster wheels are used to support the cabinet 60 of the energy storage cabinet 200 and facilitate moving the cabinet 60 to a braking area. Additionally, the energy storage cabinet 200 may also include a decorative cover 1007. The decorative cover 1007 is placed around the bottom end of the cabinet 60 to hide the caster wheels. This arrangement prevents the caster wheels from being exposed to the outside and can improve the consistency of the appearance of the energy storage cabinet 200. This arrangement can also prevent objects from entering the bottom of the cabinet 60.

[0229] In the description herein, the terms "one embodiment," "some embodiments," "exemplary embodiment," "example," "particular example," or "some examples" are intended to indicate that a particular feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of the present disclosure. These terms do not necessarily refer to the same embodiment or example herein. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0230] While embodiments of the present disclosure have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations may be made thereto without departing from the principles and spirit of the present disclosure, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An energy storage cabinet (200), comprising: A cabinet (60) comprising a cabinet body (61) and an opening / 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 within the installation cavity, and the opening / closing door (62) being used to open or close the installation cavity; a plurality of energy storage modules (201), the energy storage modules (201) being arranged in the first space (40), the energy storage modules (201) being stacked in a first direction of the energy storage cabinet (200), and the first space (40) and the second space (41) being arranged side by side in a second direction perpendicular to the first direction; a control unit (1000) disposed in the second space (41), the control unit (1000) being electrically connected to the energy storage module (201); The second space (41) is suitable for directing air into the first space (40), The first space (40) communicates with the second space (41), a first connection hole (44) is provided in the energy storage cabinet, the first connection hole (44) connects the first space (40) and the second space (41); A third space (42) is formed within the first space (40), the third space (42) is in communication with the second space (41) via the first connecting hole (44), the third space (42) has a second connecting hole connected to the first space (40), and the air within the second space (41) is suitable for flowing into the first space (40) via the third space (42), There are a plurality of second connection holes, the plurality of second connection holes being arranged along the first direction, and each first connection hole (44) corresponding to one of the second connection holes; An energy storage cabinet (200) in which a plurality of sub-spaces are formed within the third space (42), the plurality of sub-spaces, the plurality of first connection holes (44) and the plurality of second connection holes correspond one-to-one to each other, and each sub-space is connected to the corresponding first connection hole (44) and the second connection hole of each sub-space.

2. An energy storage cabinet (200), comprising: A cabinet (60) comprising a cabinet body (61) and an opening / 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 within the installation cavity, and the opening / closing door (62) being used to open or close the installation cavity; a plurality of energy storage modules (201), the energy storage modules (201) being arranged in the first space (40), the energy storage modules (201) being stacked in a first direction of the energy storage cabinet (200), and the first space (40) and the second space (41) being arranged side by side in a second direction perpendicular to the first direction; a control unit (1000) disposed in the second space (41), the control unit (1000) being electrically connected to the energy storage module (201); The second space (41) is suitable for directing air into the first space (40), The first space (40) communicates with the second space (41), a first connection hole (44) is provided in the energy storage cabinet, the first connection hole (44) connects the first space (40) and the second space (41); A third space (42) is formed within the first space (40), the third space (42) is in communication with the second space (41) via the first connecting hole (44), the third space (42) has a second connecting hole connected to the first space (40), and the air within the second space (41) is suitable for flowing into the first space (40) via the third space (42), An energy storage cabinet (200), wherein the number of the second connection holes is one, and the one second connection hole is located near the center of the third space (42) along the first direction.

3. An energy storage cabinet (200), comprising: A cabinet (60) comprising a cabinet body (61) and an opening / 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 within the installation cavity, and the opening / closing door (62) being used to open or close the installation cavity; a plurality of energy storage modules (201), the energy storage modules (201) being arranged in the first space (40), the energy storage modules (201) being stacked in a first direction of the energy storage cabinet (200), and the first space (40) and the second space (41) being arranged side by side in a second direction perpendicular to the first direction; a control unit (1000) disposed in the second space (41), the control unit (1000) being electrically connected to the energy storage module (201); The second space (41) is suitable for directing air into the first space (40), The first space (40) communicates with the second space (41), a first connection hole (44) is provided in the energy storage cabinet, the first connection hole (44) connects the first space (40) and the second space (41); A third space (42) is formed within the first space (40), the third space (42) is in communication with the second space (41) via the first connecting hole (44), the third space (42) has a second connecting hole connected to the first space (40), and the air within the second space (41) is suitable for flowing into the first space (40) via the third space (42), An energy storage cabinet (200) in which a first channel (43) is formed within the installation cavity, the first channel (43) and the first space (40) are arranged along the first direction, and the first channel (43) is connected to the first space (40) and / or the third space (42).

4. 4. The energy storage cabinet (200) of claim 3, further comprising an air conditioner (50), the air conditioner (50) being installed in the cabinet (60), the air conditioner (50) having an air outlet (51) and an air inlet (52), the air outlet (51) being connected to the second space (41) and / or the first channel (43), and the air inlet (52) being connected to the first space (40).

5. 5. The energy storage cabinet (200) of claim 4, wherein the cabinet body (61) defines a first opening communicating with the first space (40), the first opening being positioned opposite the air inlet (52), the cabinet body (61) also defines a second opening communicating with the second space (41), the second opening being positioned opposite the air outlet (51), and the first opening and the second opening are separated by a spacer.

6. The battery further comprises a positive power line (1001) and a negative power line (1002), one end of the positive power line (1001) being connected to the control unit (1000) and the other end of the positive power line (1001) being suitable for insertion into a connection terminal (202) of the energy storage module (201); 2. The energy storage cabinet (200) of claim 1, wherein 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 being plugged into the connection terminal (202) of the energy storage module (201).

7. An energy storage cabinet (200), comprising: A cabinet (60) comprising a cabinet body (61) and an opening / 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 within the installation cavity, and the opening / closing door (62) being used to open or close the installation cavity; a plurality of energy storage modules (201), the energy storage modules (201) being arranged in the first space (40), the energy storage modules (201) being stacked in a first direction of the energy storage cabinet (200), and the first space (40) and the second space (41) being arranged side by side in a second direction perpendicular to the first direction; a control unit (1000) disposed in the second space (41), the control unit (1000) being electrically connected to the energy storage module (201); The energy storage module (201) comprises an energy storage unit (220), the energy storage unit (220) comprises a plurality of battery cells (208) arranged sequentially along a thickness direction of the plurality of battery cells (208), a first air duct (210) extending along a third direction is formed between at least two adjacent battery cells (208), the third direction is perpendicular to both the first direction and the second direction, and the first air duct (210) is connected to the first space (40).

8. 8. The energy storage cabinet (200) of claim 7, further comprising a control switch (1003), the control switch (1003) being disposed in the cabinet (60) and communicating with the control unit (1000), wherein when the opening / closing door (62) is opened, the control switch (1003) is triggered to cause the control unit (1000) to shut down the energy storage cabinet (200).

9. 10. The energy storage cabinet (200) of claim 7, further comprising a smoke detection device disposed within the cabinet (60) and in communication with the control unit (1000), wherein the control unit (1000) is configured to shut down the energy storage cabinet (200) when the smoke detection device detects smoke.

10. 8. The energy storage cabinet (200) of claim 7, further comprising an emergency stop switch (1005), the emergency stop switch (1005) being in communication with the control unit (1000), and the control unit (1000) being configured to shut down the energy storage cabinet (200) when the emergency stop switch (1005) is triggered.

11. 10. The energy storage cabinet (200) of claim 7, further comprising an audible and visual alarm device (1004), the audible and visual alarm device (1004) being located external to the cabinet (60) and in communication with the control unit (1000), the control unit (1000) being configured to control the audible and visual alarm device (1004) to issue an alarm message.

12. The energy storage cabinet (200) of claim 7, wherein the interior surface of the cabinet (60) is lined with insulating cotton.

13. The energy storage cabinet (200) of claim 7, further comprising caster wheels, said caster wheels being mounted to a lower end of said cabinet (60).

14. 8. The energy storage cabinet (200) of claim 7, wherein the second space (41) is adapted to guide air into the first space (40).

15. 15. The energy storage cabinet (200) of claim 14, wherein the first space (40) communicates with the second space (41).

16. 16. The energy storage cabinet (200) according to claim 15, wherein a first connection hole (44) is provided in the energy storage cabinet, and the first connection hole (44) connects the first space (40) and the second space (41).

17. 17. The energy storage cabinet (200) of claim 16, wherein there are a plurality of first connection holes (44), the plurality of first connection holes (44) being arranged along the first direction, and each energy storage module (201) corresponding to at least one first connection hole (44).

18. 17. The energy storage cabinet (200) according to claim 16, wherein a third space (42) is formed within the first space (40), the third space (42) is in communication with the second space (41) via the first connection hole (44), the third space (42) has a second connection hole connected to the first space (40), and air within the second space (41) is suitable to flow into the first space (40) via the third space (42).

19. 20. The energy storage cabinet (200) of claim 18, wherein there are a plurality of second connection holes, the plurality of second connection holes being arranged along the first direction, and each first connection hole (44) corresponding to one of the second connection holes.

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