Energy storage modules and energy storage cabinets

Abstract

Energy storage module (201) and energy storage cabinet. The energy storage module (201) includes an energy storage unit (220), the energy storage unit (220) including a plurality of cells (208), the plurality of cells (208) being arranged in sequence in a thickness direction of the cells (208), and a first side panel (211) and a second side panel (212), the energy storage unit (220) being disposed between the first side panel (211) and the second side panel (212). ) and a second side plate (212), and a support beam (219) extending in the thickness direction of the cell (208), the support beam (219) being connected between the first side plate (211) and the second side plate (212) so that the first side plate (211) and the second side plate (212) can sandwich the energy storage unit (220), the support beam (219) being connected between the first side plate (211) and the second side plate (212), and the support beam being positioned on at least one side of the energy storage unit (220) in the width direction of the cell (208).

Description

Technical Field

[0001] Cross - reference to Related Applications This application is based on Chinese Patent Application No. 202221055633.9 filed on April 29, 2022, claims priority to the said application, and the entire content of the said application is incorporated herein by reference.

[0002] This disclosure relates to the field of energy storage, and more particularly, to an energy storage module and an energy storage cabinet having the energy storage module.

Background Art

[0003] In the related art, an existing energy storage module includes a support plate, side plates, a top plate, and a plurality of cells. The support plate, side plates, and top plate define an installation space for installing the cells, and fixing brackets need to be installed between the cells to fix the cells, which makes the structure of the energy storage module complicated and affects its assembly efficiency. At the same time, the fixing brackets occupy the internal space of the energy storage module, affecting its energy density and increasing the volume of the energy storage module.

Summary of the Invention

Problems to be Solved by the Invention

[0004] This disclosure aims to at least to some extent solve one of the technical problems in the related art. Therefore, the object of this disclosure is to provide an energy storage module that can sandwich and fix an energy storage unit.

Means for Solving the Problems

[0005] This disclosure further provides an energy storage cabinet.

[0006] The energy storage module according to this disclosure is An energy storage unit comprising a plurality of cells, wherein the plurality of cells are arranged sequentially in the thickness direction of the cell, A first side plate and a second side plate, wherein an energy storage unit is provided between the first side plate and the second side plate, A support beam, wherein the support beam extends in the thickness direction of the cell and is connected between 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, and the support beam is positioned on at least one side of the energy storage unit in the width direction of the cell, and Includes.

[0007] According to the energy storage module of this disclosure, the energy storage unit can be clamped and fixed by the coordination of the energy storage unit, the first side plate, the second side plate, and the support beam.

[0008] In some embodiments of the present disclosure, the energy storage module further includes a top cover and a bottom cover, the top cover and the bottom cover respectively located on two sides of the energy storage unit in the width direction of the cell, the top cover and the bottom cover both connected to a first side plate and a second side plate, and the separation effect of the support beams forms a second air duct between the surface of the energy storage unit near the top cover and the top cover and / or between the surface of the energy storage unit near the bottom cover and the bottom cover.

[0009] In some embodiments of the present disclosure, the support beam is in contact with the surface near the top cover of the energy storage unit and / or the top cover, and / or the support beam is in contact with the surface near the bottom cover of the energy storage unit and / or the bottom cover, and the support beam has an air passage connecting two adjacent sub-air ducts.

[0010] In some embodiments of this disclosure, the support beam spans the entire cell in the thickness direction of the cell.

[0011] In some embodiments of the present disclosure, a limiting boss is provided on the inner surface of the first side plate near the energy storage unit and / or the inner surface of the second side plate near the energy storage unit, projecting toward the energy storage unit, and the support beam overlaps with the limiting boss.

[0012] In some embodiments of the present disclosure, a third air duct is formed inside the limiting boss.

[0013] In some embodiments of the present disclosure, mounting holes for assembling a support beam are provided in both the first and second side plates, the axes of the mounting holes extend in the thickness direction of the cell, and fasteners engage with the support beam by passing through the mounting holes so that the first and second side plates can clamp the energy storage unit.

[0014] In some embodiments of the present disclosure, the energy storage module further includes a heat sink, which is located between at least two adjacent cells of a plurality of cells, is in contact with the adjacent cells, and defines a first air duct extending along the longitudinal direction of the cells.

[0015] 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 the longitudinal direction of the cell, and the drive fan is used to drive a gas in a first air duct and along the first air duct.

[0016] In some embodiments of the present disclosure, there are multiple drive fans, which are sequentially spaced apart along the thickness direction of the cell.

[0017] In some embodiments of the present disclosure, the energy storage module further includes a heat dissipation end plate, a drive fan is mounted on the heat dissipation end plate, and the heat dissipation end plate is fixedly connected to a first side plate and / or a second side plate.

[0018] In some embodiments of the present disclosure, the energy storage module further includes a fixing plate, which is mounted on a first side plate and / or a second side plate, and the fixing plate is provided with a handle.

[0019] In some embodiments of the present disclosure, the energy storage module further includes a fixed bracket, which is mounted on a first side plate and / or a second side plate, and is located between the fixed plate and the heat dissipation end plate, and is used to restrict the position of the heat dissipation end plate.

[0020] In some embodiments of the present disclosure, a heat dissipation end plate is provided with a positive terminal and a negative terminal, the positive terminal being connected to the total positive output pole of the energy storage unit, and the negative terminal being connected to the total negative output pole of the energy storage unit.

[0021] In some embodiments of this disclosure, the positive and negative terminals are located on the same side of the cell in the thickness direction, closer to the heat dissipation end plate.

[0022] In some embodiments of this disclosure, the heat dissipation end plate defines a mounting groove, and both the positive and negative connection terminals are located within the mounting groove.

[0023] In some embodiments of the present disclosure, the heat dissipation end plate further defines foolproof slots, which communicate with mounting grooves and are used for wiring.

[0024] In some embodiments of the present disclosure, the heat dissipation end plate further defines wiring slots, the wiring slots communicate with mounting grooves, and the foolproof slots and wiring slots are located on two sides of the mounting groove, respectively.

[0025] In some embodiments of the present disclosure, the energy storage module further includes a temperature detection member, which is used to collect the temperature of the energy storage unit. Both the driving fan and the temperature detection member are connected to the battery management system of the energy storage module, and the battery management system is used to adjust the speed of the driving fan by receiving the temperature information collected by the temperature detection member.

[0026] In some embodiments of the present disclosure, the energy storage module further includes a ventilation panel, which is provided on the side away from the energy storage unit of the driving fan, and air outlet holes are provided in the ventilation panel.

[0027] In some embodiments of the present disclosure, the energy storage module further includes an end plate, which is provided at the other end of the energy storage unit and is spaced apart from the energy storage unit. The end plate is connected to the top cover and / or the bottom cover, and a first air inlet hole communicating with the first air duct is provided in the end plate.

[0028] In some embodiments of the present disclosure, the top cover and / or the bottom cover may be provided with a second air inlet hole communicating with the second air duct.

[0029] In some embodiments of the present disclosure, the length dimension of the cell is E, which satisfies the relationship 400 mm ≤ E ≤ 1500 mm. The width dimension of the cell is F, which satisfies the relationship 70 mm ≤ F ≤ 150 mm. The thickness dimension of the cell is G, which satisfies the relationship 10 mm ≤ G ≤ 25 mm.

[0030] The energy storage cabinet according to the present disclosure includes the above-described energy storage module.

[0031] Additional aspects and advantages of the present disclosure are provided in part in the following description, some of which will be apparent from the following description or can be learned from the practice of the present disclosure.

Brief Description of the Drawings

[0032] [Figure 1] This is an exploded view of an energy storage module according to one embodiment of the present disclosure. [Figure 2] This is a schematic diagram of the internal structure of an energy storage module according to one embodiment of the present disclosure. [Figure 3] This is a schematic diagram of an energy storage module according to one embodiment of the present disclosure. [Figure 4] This is a schematic diagram of an energy storage module without ventilation panels according to one embodiment of the present disclosure. [Figure 5] This is a schematic assembly diagram of a cell and side plate of an energy storage module according to one embodiment of the present disclosure. [Figure 6] This is a schematic diagram of the relative positions of the drive fan and heat sink of an energy storage module according to one embodiment of the present disclosure. [Figure 7] This is a schematic assembly diagram of a cell and heat sink of an energy storage module according to one embodiment of the present disclosure. [Figure 8] This is an enlarged view of M in Figure 7. [Figure 9] This is a side view of a heat sink for an energy storage module according to one embodiment of the present disclosure. [Figure 10] This is a front view of a heat sink for an energy storage module according to one embodiment of the present disclosure. [Figure 11] This is a schematic diagram of a cell in an energy storage module according to one embodiment of the present disclosure. [Figure 12] This is a schematic assembly drawing of a heat dissipation end plate and a drive fan according to one embodiment of the present disclosure. [Figure 13] This is a schematic diagram from another angle showing the heat dissipation end plate and drive fan assembled according to one embodiment of the present disclosure. [Figure 14] This is a schematic diagram of a second side plate and a fixing bracket according to one embodiment of the present disclosure. [Figure 15] This is a schematic assembly diagram of a second side plate and a fixing plate according to one embodiment of the present disclosure. [Figure 16]This is a schematic diagram of a top cover according to one embodiment of the present disclosure. [Figure 17] This is a front view of a support beam according to one embodiment of the present disclosure. [Figure 18] This is a top view of a support beam according to one embodiment of the present disclosure. [Figure 19] This is a schematic assembly diagram of a cell and a connecting piece according to one embodiment of the present disclosure. [Figure 20] This is a schematic assembly diagram of a connecting piece and busbar mounting rack according to one embodiment of the present disclosure. [Figure 21] This is a partially enlarged view of an assembly of a connecting piece and a busbar mounting rack according to one embodiment of the present disclosure. [Figure 22] This is a schematic assembly diagram of a heat dissipation end plate, a drive fan, and an information collector according to one embodiment of the present disclosure. [Figure 23] This is a schematic diagram of an electrical connection assembly and a connection terminal assembly according to one embodiment of the present disclosure. [Figure 24] This is a schematic diagram of an electrical connection assembly and a connection terminal assembly from a different angle according to one embodiment of the present disclosure. [Figure 25] This is a cross-sectional view at point AA in Figure 2. [Figure 26] This is an exploded view of a conductive bar and a connecting terminal according to one embodiment of the present disclosure. [Figure 27] This is a schematic diagram of an assembly of a conductive bar and a connecting terminal according to one embodiment of the present disclosure. [Figure 28] This is an exploded view of a conductive bar and an insulating cover according to one embodiment of the present disclosure. [Figure 29] This is a schematic diagram of an assembly of a conductive bar and an insulating cover according to one embodiment of the present disclosure. [Figure 30] This is an exploded view of an electrical connection assembly and connection terminals on an energy storage module according to one embodiment of the present disclosure. [Figure 31] This 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]This is a schematic diagram of a ventilation panel according to one embodiment of the present disclosure. [Modes for carrying out the invention]

[0033] Embodiments of the present disclosure are described in detail below. Examples of 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 function. The embodiments described below with reference to the accompanying drawings are illustrative and are intended to illustrate the present disclosure and should not be construed as limiting the present disclosure.

[0034] An energy storage module 201 according to an embodiment of the present disclosure is described below with reference to Figures 1 to 32. The energy storage module 201 can be installed in an energy storage cabinet to supply power to other electrical equipment.

[0035] As shown in Figures 1 to 32, 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 plate 211, and a second side plate 212. The energy storage unit 220 includes a plurality of cells 208, which are arranged sequentially along the thickness direction of the cells 208. When the energy storage unit 220 is oriented in the direction shown in Figure 7, the thickness direction of the cells 208 refers to the left-right direction shown in Figure 7. The energy storage unit 220 is positioned between the first side plate 211 and the second side plate 212. As shown in Figures 2 and 4, the support beam 219 extends along the thickness direction of the cells 208 so that the first side plate 211 and the second side plate 212 can sandwich the energy storage unit 220, and the support beam 219 is connected between the first side plate 211 and the second side plate 212. The support beam 219 is provided on at least one side of the energy storage unit 220 in the width direction of the cell 208. When the energy storage unit 220 is oriented in the direction shown in Figure 2, the width direction of the cell 208 is the vertical direction of the energy storage module 201 in Figure 2. The support beam 219 can be provided on the upper side of the energy storage unit 220, or on the lower side of the energy storage unit 220, or on both the upper and lower sides of the energy storage unit 220. For example, the support beam 219 can be provided on both the upper and lower sides of the energy storage unit 220.

[0036] As shown in Figure 4, when the energy storage module 201 is positioned in the orientation shown in Figure 4, the first side plate 211 and the second side plate 212 are positioned on the left and right sides of the energy storage unit 220, respectively. This disclosure is illustrated by an example in which the first side plate 211 is positioned on the left side of the energy storage unit 220 and the second side plate 212 is positioned on the right side of the energy storage unit 220. The first side plate 211 and the second side plate 212 are connected by a connecting beam, and the energy storage unit 220 is positioned between the first side plate 211 and the second side plate 212. After the connecting beam assembles the first side plate 211 and the second side plate 212, the first side plate 211 and the second side plate 212 can clamp the energy storage unit 220, and the energy storage unit 220 can be fixed within the energy storage module 201. There is no need to install brackets for fixing the cells 208 inside the energy storage module 201, and therefore the space for arranging the cells 208 within the energy storage module 201 is increased, allowing more cells 208 to be placed within the energy storage module 201, thereby improving the energy density of the energy storage module 201. If the energy storage module 201 has the same energy density, the energy storage module 201 of this disclosure has a smaller volume. Furthermore, by providing support beams 219 on both the lower and upper sides of the energy storage unit 220, the lower support beam 219 of the energy storage unit 220 can support the energy storage unit 220, and as a result 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 clamping the energy storage unit 220 using the support beam 219, the first side plate 211, and the second side plate 212, the structure of the energy storage module 201 can be simplified, the assembly efficiency of the energy storage module 201 can be improved, and therefore the production efficiency of the energy storage module 201 can be improved.

[0037] Therefore, the energy storage unit 220, the first side plate 211, the second side plate 212, and the support beam 219 work together to allow the energy storage unit 220 to be clamped, 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 for fixing the cells 208 inside the energy storage module 201. More cells 208 can be placed inside 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 will be smaller.

[0038] In some embodiments of this disclosure, as shown in Figures 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 cell 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 oriented in the direction shown in Figure 1, in the vertical direction shown in Figure 1, the top cover 213 is located on the upper side of the energy storage unit 220, and the bottom cover 214 is located on the lower side of the energy storage unit 220, 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 plate 211 and the second side plate 212, or both the first side plate 211 and the second side plate 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 plate 211 and the second side plate 212. The second air duct 216 is formed between the surface of the energy storage unit 220 near the top cover 213 and the top cover 213, and / or between the surface of the energy storage unit 220 near the bottom cover 214 and the bottom cover 214, due to the separation effect of the support beam 219. That is, the second air duct 216 can be formed between the surface of the energy storage unit 220 near the top cover 213 and the top cover 213 due to the separation effect of the support beam 219, or the second air duct 216 can be formed between the surface of the energy storage unit 220 near the bottom cover 214 and the bottom cover 214 due to the separation effect of the support beam 219, and the second air duct 216 can also be formed between the surface of the energy storage unit 220 near the top cover 213 and the top cover 213, and between the surface of the energy storage unit 220 near the bottom cover 214 and the bottom cover 214. For example, the second air duct 216 can be formed between the surface of the energy storage unit 220 near the top cover 213 and the top cover 213, and between the surface of the energy storage unit 220 near the bottom cover 214 and the bottom cover 214.

[0039] 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, forming a second air duct 216 between the energy storage unit 220 and the top cover 213. 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, forming a second air duct 216 between the energy storage unit 220 and the bottom cover 214. External air from the energy storage module 201 can flow into the second air duct 216, and after entering the second air duct 216, this air can exchange heat with the energy storage unit 220. The air then flows out of the energy storage module 201, thereby removing heat from the cell 208, achieving a cooling effect, and improving the heat dissipation efficiency of the cell 208. Furthermore, by providing 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 between the two sides of a single cell 208 can be controlled to within 4 degrees, resulting in a more balanced temperature difference between different regions of the cell 208.

[0040] In some embodiments of the present disclosure, as shown in Figures 2, 4, and 5, to divide a second air duct 216 into a plurality of sub-air ducts 217, the support beam 219 is in contact with the surface of the energy storage unit 220 near the top cover 213 and / or the support beam 219 is in contact with the bottom cover 214 and / or the surface of the energy storage unit 220 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 oriented in the direction shown in Figure 1, the support beam 219 located between the energy storage unit 220 and the top cover 213 is in contact with both the top 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 is in contact with both the bottom surface of the energy storage unit 220 and the bottom cover 214. A support beam 219 located between the energy storage unit 220 and the top cover 213 can divide the second air duct 216 into a plurality of sub-air ducts 217, and a support beam 219 located between the energy storage unit 220 and the bottom cover 214 can divide the second air duct 216 into a plurality of sub-air ducts 217. The plurality of sub-air ducts 217 located between the energy storage unit 220 and the top cover 213 are arranged sequentially in the longitudinal direction of the cell 208, and the plurality of sub-air ducts 217 located between the energy storage unit 220 and the bottom cover 214 are arranged sequentially in the longitudinal direction of the cell 208.

[0041] After gas from outside the energy storage module 201 flows into the sub-air duct 217, the gas can flow into adjacent sub-air ducts 217 via the air passage 218. As the gas flows, the air exchanges heat with the cell 208, removing heat from the cell 208, and finally the gas flows out of the energy storage module 201. In addition, by bringing the support beam 219 into contact with the energy storage unit 220, the support beam 219 located below the energy storage unit 220 can support the energy storage unit 220. On the other hand, the support beam 219 located below the energy storage unit 220 and the support beam 219 located above the energy storage unit 220 sandwich the energy storage unit 220, and as a result the energy storage unit 220 is firmly assembled within the energy storage module 201.

[0042] Furthermore, as shown in Figures 2 and 4, a plurality of support beams 219 may be provided between the energy storage unit 220 and the top cover 213, and these support beams 219 are sequentially spaced apart in the longitudinal direction of the cell 208 (i.e., the front-to-back direction in Figure 4). At the same time, a plurality of support beams 219 may also be provided between the energy storage unit 220 and the bottom cover 214, and these support beams 219 are sequentially spaced apart in the longitudinal direction of the cell 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 firmly clamp the energy storage unit 220.

[0043] In some embodiments of the present disclosure, as shown in Figure 4, the support beam 219 spans all cells 208 along the thickness direction of the cells 208. As shown in Figure 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. The support beam 219 spans all cells 208 along the thickness direction of the cells 208 and is then connected to the first side plate 211 and the second side plate 212, so that the first side plate 211 and the second side plate 212 can securely hold the energy storage unit 220.

[0044] In some embodiments of this disclosure, as shown in Figure 5, a limiting boss 221 projecting toward the energy storage unit 220 may be provided on the inner surface of the first side plate 211 closest to the energy storage unit 220 and / or on the inner surface of the second side plate 212 closest to the energy storage unit 220. It can also be understood that the limiting boss 221 may be provided on the inner surface of the first side plate 211 closest to the energy storage unit 220, and that the limiting boss 221 may be provided on the inner surface of the second side plate 212 closest to the energy storage unit 220. The limiting boss 221 may also be provided on the inner surface of the first side plate 211 closest to the energy storage unit 220 and on the inner surface of the second side plate 212 closest 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, thereby fixing the energy storage unit 220 within the energy storage module 201.

[0045] Furthermore, the support beam 219 is superimposed on the limiting boss 221. Specifically, as shown in Figure 5, the two ends of the support beam 219 located between the energy storage unit 220 and the top cover 213 are superimposed on 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, and as a result, the support beam 219 can be reliably assembled together 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 are superimposed on 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 cell 208.

[0046] In some embodiments of the present disclosure, as shown in Figure 5, a third air duct 222 is formed within a limiting boss 221, and the third air duct 222 extends along the length of the cell 208. Since the limiting boss 221 is in contact with the energy storage unit 220, after the gas flows into the third air duct 222, the gas can exchange heat with the energy storage unit 220. As the gas flows along the third air duct 222, the gas can continuously remove heat from the energy storage unit 220, thereby achieving a cooling effect on the energy storage unit 220.

[0047] In some embodiments of the present disclosure, as shown in Figure 5, mounting holes 223 for assembling a support beam 219 are provided in both the first side plate 211 and the second side plate 212, the axes of the mounting holes 223 extend in the thickness direction of the cell 208, the mounting holes 223 on the first side plate 211 penetrate 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 penetrate the second side plate 212 in the thickness direction of the second side plate 212, and the first side plate 211 and the second side plate 212 can clamp the energy storage unit 220 by fasteners 224 penetrating the mounting holes 223 and engaging with the support beam 219. A plurality of fasteners 224 and mounting holes 223 are present, with each of the multiple mounting holes 223 and multiple fasteners 224 arranged one by one. The fasteners 224 may be bolts or screws. The 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 threadedly connected to the support beam 219, thereby fixing the first side plate 211 and the second side plate 212, which then clamp the energy storage unit 220.

[0048] In some embodiments of the present disclosure, as shown in Figures 7 and 8, the energy storage module 201 may also include a heat sink 209, which is located between at least two adjacent cells 208 of a plurality of cells 208, and the heat sink 209 is in contact with the adjacent cells 208, and the heat sink 209 defines a first air duct 210 extending along the longitudinal direction of the cells 208. When the energy storage module 201 is oriented in the direction shown in Figure 7, the longitudinal direction of the cells 208 refers to the front-to-back direction shown in Figure 7. This arrangement allows the contact surface between the heat sink 209 and the cells 208 to be a large surface area of ​​the cells 208, which can improve the heat dissipation effect of the heat sink 209 on the cells 208. Furthermore, a gas (such as cold air) can enter the energy storage module 201 and then flow into the first air duct 210. As the cold air flows along the first air duct 210, the cold air exchanges heat with the cell 208, removing heat from the cell 208 and achieving a cooling effect on the cell 208. After the air in the first air duct 210 exits 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.

[0049] In some embodiments of the present disclosure, as shown in Figures 5, 7, and 8, the heat sink 209 can define a plurality of first air ducts 210, which are arranged sequentially along the width direction of the cell 208. When the energy storage module 201 is oriented in the direction shown in Figure 7, the width direction of the cell 208 refers to the vertical direction shown in Figure 7. This configuration allows gas to flow smoothly through the different first air ducts 210, avoiding the formation of vortices within the heat sink 209, thereby ensuring gas flow velocity, facilitating the gas to flow out of the heat sink 209, thereby rapidly removing heat from the cell 208, and also avoiding noise generated by the gas within the heat sink 209.

[0050] In some embodiments of this disclosure, as shown in Figures 7 and 8, a plurality of cells 208 may form a plurality of cells, and each cell may contain at least one cell 208. Furthermore, as shown in Figure 7, every two cells 208 may form one cell, and two cells 208 located at the ends may each form one cell. A heat sink 209 is provided between two adjacent cells, ensuring that each cell 208 is in contact with at least one heat sink 209 so that each cell 208 has at least one heat sink 209 for dissipating its heat, and the heat sink may also be connected to a side of the cell 208 having a larger area, thereby increasing the heat dissipation area of ​​the cell 208 and reducing temperature differences in various regions of the cell 208. At the same time, the arrangement of the plurality of cells 208 and heat sinks 209 allows the heat sinks 209 to provide support for the cells 208, thereby improving the structural stability and safety of the energy storage module 201.

[0051] In some embodiments of the present disclosure, as shown in Figures 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 longitudinal direction of the cell 208, spaced apart from the energy storage unit 220, and is used to drive gas to flow along the first air duct 210 within the first air duct 210. Furthermore, as shown in Figure 4, if the energy storage module 201 is oriented in the direction shown in Figure 4, the drive fan 2061 is located at the front end of the energy storage unit 220, and the selection of the drive fan 2061 may involve selecting different models of fans based on specific heat dissipation requirements. When the drive fan 2061 is operating, its blades rotate, and under the operation of the drive fan 2061, the gas in the first air duct 210 flows along the first air duct 210 toward the drive fan 2061, the heat generated by the cell 208 is removed by the gas flow, and the gas carried out by the drive fan 2061 is finally discharged to the outside of the energy storage module 201. By providing the drive fan 2061, the gas flow velocity in the first air duct 210 can be increased, the heat from the cell 208 can be removed more quickly, thereby improving the heat exchange efficiency of the heat sink 209.

[0052] In some embodiments of this disclosure, as shown in Figures 4 and 6, multiple drive fans 2061 can be installed, and the multiple drive fans 2061 are sequentially spaced apart along the thickness direction of the cell 208. It should be noted that the number of drive fans 2061 is positively correlated with the number of cells 208 in the energy storage module 201; that is, the more cells 208 installed in the energy storage module 201, the more drive fans 2061 can be installed, and the fewer cells 208 installed in the energy storage module 201, the fewer drive fans 2061 can be installed. For illustrative purposes, this disclosure takes an example in which two drive fans 2061 are installed in the energy storage module 201. By installing multiple drive fans 2061, the covering area of ​​the drive fans 2061 can be expanded, thus ensuring an improvement in the gas 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.

[0053] In some embodiments of this disclosure, as shown in Figure 6, the distance between any two adjacent drive fans 2061 along the thickness direction of the cell 208 is A, satisfying the relation 90 mm ≤ A ≤ 100 mm. For example, the distance between two adjacent drive fans 2061 is 98 mm. By setting the distance between two adjacent drive fans 2061 to A in the thickness direction of the cell 208, i.e., the left-right direction in Figure 6, it can be ensured that the drive fans 2061 can drive the gas flow in the first air duct 210 located between the two drive fans 2061, allowing heat from the cell 208 to be removed more quickly, thereby ensuring the heat exchange efficiency of the heat sink 209.

[0054] In some embodiments of this disclosure, as shown in Figure 6, the 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 cell 208 is B, satisfying the relationship 180 mm ≤ B ≤ 200 mm. For example, the distance between the center of one of two adjacent drive fans 2061 and the center of the other drive fan 2061 is 190 mm. This installation can further ensure that the drive fans 2061 can drive the gas flow in the first air duct 210 located between the two drive fans 2061, thereby more quickly removing heat from the cell 208 and further ensuring the heat exchange efficiency of the heat sink 209.

[0055] In some embodiments of this disclosure, as shown in Figure 6, the distance between the drive fan 2061 and the cell 208 in the longitudinal direction of the cell 208 is C, satisfying the relationship 40 mm ≤ C ≤ 50 mm. For example, the distance between the drive fan 2061 and the cell 208 is 45.6 mm. Furthermore, the distance between the drive fan 2061 and the heat sink 209 in the longitudinal direction of the cell 208 is also C. This setting further ensures that the drive fan 2061 can drive the gas flow in the first air duct 210 located between the two drive fans 2061, allowing heat to be removed from the cell 208 more quickly, thereby further ensuring the heat exchange efficiency of the heat sink 209, and as a result the distance dimensions between the drive fan 2061 and the cell 208, and between the drive fan 2061 and the heat sink 209 are appropriate.

[0056] In some embodiments of this disclosure, as shown in Figure 6, the distance between the outermost surface of the heat sink 209 furthest from the drive fan 2061 and the adjacent drive fan 2061 in the thickness direction of the cell 208 is D, satisfying the relationship 60 mm ≤ D ≤ 70 mm. For example, the distance between the outermost surface of the heat sink 209 furthest from the drive fan 2061 and the adjacent drive fan 2061 is 65.2 mm. Such a setting can ensure that the gas in each first air duct 210 is driven and flows by the drive fan 2061, which can improve the temperature consistency of various areas of the energy storage module 201, thereby ensuring uniform heat dissipation of the energy storage module 201.

[0057] It should be noted that the larger the size of the drive fan 2061, the faster the airflow velocity in the first air duct 210. In the width direction of cell 208, the size of the drive fan 2061 is greater than or equal to the width dimension of cell 208. In this case, the size of the drive fan 2061 in the width direction of cell 208 reaches 100% of the coverage of cell 208, the operating area of ​​the drive fan 2061 is circular, and as a result, the maximum airflow in the first air duct 210 can be achieved, 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 drive fan 2061 occupies 40% to 50% of the width dimension of the energy storage module 201, for example, the set size of the drive fan 2061 occupies 44.62% of the width dimension of the energy storage module 201.

[0058] In some embodiments of this disclosure, in the thickness direction of cell 208, the area of ​​the side surface (i.e., the larger surface) of cell 208 is S1, and the contact area between the heat sink 209 and the adjacent cell 208 is S2, satisfying the relation 0.90 ≤ S2 / S1 ≤ 1, for example, S2 / S1 is 0.97. This setting can ensure the contact area between the heat sink 209 and the adjacent cell 208, and can improve the heat exchange efficiency between the heat sink 209 and the cell 208.

[0059] In some embodiments of the present disclosure, as shown in Figures 4 and 12, the energy storage module 201 may also include a heat dissipation end plate 206 on which a drive fan 2061 is mounted, and the heat dissipation end plate 206 is fixedly connected to a first side plate 211 and / or a second side plate 212. It can also be understood that the heat dissipation end plate 206 may be connected to the first side plate 211, or the heat dissipation end plate 206 may be connected to the second side plate 212, or the heat dissipation end plate 206 may be fixedly connected to both the first side plate 211 and the second side plate 212. As shown in Figure 4, the heat dissipation 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 dissipation end plate 206 can be installed to the first side plate 211 and the second side plate 212 by bolts. The heat dissipation end plate 206 is also spaced apart from the energy storage unit 220. By installing the drive fan 2061 on the heat dissipation end plate 206, the gas in the first air duct 210 can be moved along the first air duct 210 toward the front of the energy storage module 201, and the drive fan 2061 can be securely positioned within the energy storage module 201.

[0060] Furthermore, as shown in Figures 1, 19 to 21, the energy storage module 201 may also include a connecting piece 2083 and a busbar mounting rack 2084. Along the length of the cell 208, a positive and a negative electrode are provided at two ends of the cell 208, respectively. The connecting piece 2083 is connected between the positive and negative electrodes of two adjacent cells 208 to provide an electrical connection between the two adjacent cells 208. The busbar mounting rack 2084 is positioned between the heat dissipation end plate 206 and the energy storage unit 220. The connecting piece 2083 is mounted 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 busbar mounting rack 2084 can be attached to the first side plate 211 and the second side plate 212 by bolts, or the busbar mounting rack 2084 can be clamped on the first side plate 211 and the second side plate 212. The specific assembly configuration is not particularly limited. The heat dissipation end plate 206 is removablely attached to the busbar mounting rack 2084, and as a result, the heat dissipation end plate 206 is indirectly attached to the first side plate 211 and the second side plate 212.

[0061] In some embodiments of this disclosure, as shown in Figures 1 and 4, the energy storage module 201 may further include a fixed plate 2065, which is mounted on a first side plate 211 and / or a second side plate 212, i.e., the fixed plate 2065 can be mounted on the first side plate 211, the fixed plate 2065 can be mounted on the second side plate 212, or the fixed plate 2065 can be mounted on both the first and second side plates 212 simultaneously. Furthermore, the portion of the fixed plate 2065 connected to the side plate is configured as a flat plate structure. As shown in Figures 2 and 4, a handle 2066 may be provided on the fixed plate 2065. Furthermore, the handle 2066 may be provided at the 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 placed, an attendant can lift the energy storage module 201 by grasping the handle 2066, thereby facilitating the transport of the energy storage module 201. In some embodiments of the present disclosure, the heat dissipation end plate 206 can be fixedly connected to the fixing plate 2065, and the heat dissipation end plate 206 can be attached to the fixing plate 2065 using bolts.

[0062] Furthermore, as shown in Figure 1, the energy storage module 201 may also 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 dissipation end plate 206, the fixing bracket 2067 is located inside the fixing plate 2065, and the fixing bracket 2067 is used to restrict the position of the heat dissipation end plate 206. As shown in Figures 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. In the front-rear direction of the energy storage module 201, the fixing bracket 2067 is provided between the heat dissipation end plate 206 and the side plates (i.e., the first side plate 211 and the second side plate 212). By providing the fixing bracket 2067 between the heat dissipation end plate 206 and the side plates, the heat dissipation end plate 206 can be separated from the energy storage unit 220, and installation space can be provided for components such as the connecting piece 2083, i.e., installation space can be provided for the busbar mounting rack 2084. Furthermore, the restrictive cooperation between the fixing bracket 2067 and the heat dissipation end plate 206 allows the fixing bracket 2067 to restrict the movement of the heat dissipation end plate 206 in the width direction of the energy storage module 201, and the heat dissipation end plate 206 and the busbar mounting rack 2084 can be reliably assembled. Furthermore, the fixing bracket 2067 is detachably connected to the fixing plate 2065, and for example, the fixing bracket 2067 and the fixing plate 2065 are securely fastened together by bolts or screws. The heat dissipation end plate 206 can also be attached to the fixing bracket 2067 by bolts or screws.

[0063] Furthermore, as shown in Figure 14, the fixing bracket 2067 is provided with an insertion post 2085, and insertion holes 2086 are provided in 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 the fixing bracket 2067 and the first side plate 211 are fixed together with bolts. 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 the fixing bracket 2067 and the second side plate 212 are fixed together with bolts. This configuration allows the fixing bracket 2067 to be firmly attached to the first side plate 211 and the second side plate 212, which is convenient for disassembling and assembling the fixing bracket 2067.

[0064] In some embodiments of the present disclosure, as shown in Figures 4 and 13, a positive electrode terminal 2029 and a negative electrode terminal 2030 are provided on the heat dissipation end plate 206, the positive electrode terminal 2029 being connected to all positive output electrodes of the energy storage unit 220, and the negative electrode terminal 2030 being connected to all negative output electrodes of the energy storage unit 220. Furthermore, in the thickness direction of the cell 208, the positive electrode terminal 2029 and the negative electrode terminal 2030 are located near the same side of the heat dissipation end plate 206, for example, as shown in Figure 4, the positive electrode terminal 2029 and the negative electrode terminal 2030 are located near the left side of the heat dissipation end plate 206. When the energy storage modules 201 are stacked in an energy storage cabinet, the positive terminal 2029 and the negative terminal 2030 are located on the same side of the heat dissipation end plate 206, so that in two adjacent energy storage modules 201, the positive terminal 2029 of one energy storage module 201 and the negative terminal 2030 of the other energy storage module 201 can be connected, and the length of the conductive bar 10 can be shortened. The conductive bar 10 is connected between the positive terminal 2029 and the negative terminal 2030. Furthermore, the conductive bar 10 is plug-in connected to both the positive terminal 2029 and the negative terminal 2030.

[0065] In some embodiments of this disclosure, as shown in Figures 4 and 13, the heat sink end plate 206 can define a mounting groove 2063, and the positive terminal 2029 and the negative terminal 2030 are both located within the mounting groove 2063. Furthermore, the mounting groove 2063 is recessed from the outer surface of the heat sink end plate 206 toward the inside of the heat sink end plate 206. By locating the positive terminal 2029 and the negative terminal 2030 within the mounting groove 2063, the positive terminal 2029 and the negative terminal 2030 can be hidden within the mounting groove 2063, thereby preventing the positive terminal 2029 and the negative terminal 2030 from protruding from the outer surface of the heat sink end plate 206 and interfering with other components.

[0066] In some embodiments of the present disclosure, as shown in Figures 4 and 13, the heat dissipation end plate 206 further defines a foolproof slot 203, which communicates with a mounting groove 2063 and is used for wiring (e.g., conductive bar 10). Furthermore, 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 second slot segment 20642 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, the third slot segment 20643 is connected to the mounting groove 2063, and the shape of the conductive bar 10 is adapted to the shape of the foolproof slot 203. As shown in Figure 13, the positive connection terminal 2029 may be located to the left of the negative connection terminal 2030. When multiple energy storage modules 201 are stacked in sequence, the conductive bar 10 is connected between two adjacent energy storage modules 201. The lower end of the conductive bar 10 is plugged into the positive terminal 2029 of the energy storage module 201 located below it, and the upper end of the conductive bar 10 is plugged into the negative terminal 2030 of the energy storage module 201 located above it, thereby establishing an electrical connection between the two adjacent energy storage modules 201. Furthermore, by placing the conductive bar 10 in the foolproof slot 203, the foolproof slot 203 can guide the conductive bar 10 and prevent it from being installed incorrectly (for example, the upper end of the conductive bar 10 and the negative terminal 2030 of the energy storage module 201 located above it, and the lower end of the conductive bar 10 and the negative terminal 2030 of the energy storage module 201 located below it).At the same time, concealing the conductive bar 10 within the foolproof slot 203 prevents the conductive bar 10 from interfering with other components, thereby ensuring the reliability of the assembly between the conductive bar 10 and the positive terminal 2029 and the negative terminal 2030.

[0067] Furthermore, the heat dissipation end plate 206 can also define a wiring slot 2064, which is connected to a mounting groove 2063, and the foolproof slot 203 and the wiring slot 2064 are located on two sides of the mounting groove 2063, respectively. Moreover, when the energy storage module 201 is positioned in the orientation shown in Figure 4, the wiring slot 2064 is located on the upper side of the mounting groove 2063, and the foolproof slot 203 is located on the lower side of the mounting groove 2063. The wiring slot 2064 is positioned corresponding to the positive connection terminal 2029, and the foolproof slot 203 is positioned corresponding to the negative connection terminal 2030. When multiple energy storage modules 201 are stacked in sequence, the conductive bar 10 connects between two adjacent energy storage modules 201. The lower end of the conductive bar 10 is inserted into and connected to the positive terminal 2029 of the energy storage module 201 located below, and is located within the wiring slot 2064 of the energy storage module 201. The upper end of the conductive bar 10 is inserted into and connected to the negative terminal 2030 of the energy storage module 201 located above, and is located 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 together can restrict the position of the conductive bar 10.

[0068] In some embodiments of this disclosure, the energy storage module 201 may also include a temperature sensing member, which is used to collect the temperature of the energy storage unit 220. It should be noted that the temperature sensing member may be installed as a temperature sensor. Both the drive fan 2061 and the temperature sensing member are suitable for connection to a battery management system of the energy storage module 201. The battery management system is used to control the speed of the drive fan 2061 by receiving temperature information collected by the temperature sensing member.

[0069] The drive fan 2061 and the temperature sensing member can be connected to the battery management system of the energy storage module 201 via a communication harness. The temperature sensing member can detect the temperature of the energy storage unit 220 in real time. After the temperature sensing member transmits the detected temperature information to the battery management system, the battery management system controls the rotation speed of the drive fan 2061 according to the received temperature information. For example, if the temperature of the energy storage unit 220 is high (e.g., above 35°C), the battery management system controls the drive fan 2061 to increase its rotation speed, preferably to full speed, thereby effectively cooling the energy storage module 201. If the temperature of the energy storage unit 220 is low (e.g., the temperature reaches 30°C), the battery management system controls the drive fan 2061 to decrease its rotation speed, so that it rotates at half speed, thereby similarly effectively cooling the energy storage module 201. This configuration allows for variable speed adjustment of the drive fan 2061 of the energy storage module 201 at various temperatures, and also allows the drive fan 2061 to be adjusted to an appropriate speed to meet the heat dissipation requirements of the energy storage module 201. This helps save on electricity costs and has a significant effect on improving heat dissipation efficiency and power utilization. In addition, this configuration maintains the temperature stability of the energy storage module 201 during operation and effectively supports the stable output of the energy storage module 201.

[0070] Furthermore, as shown in Figure 22, the energy storage module 201 may also be equipped with an information collector 2062 (BIC), which can be connected between the temperature sensing element and the battery management system. Temperature information detected by the temperature sensing element is transmitted to the battery management system via the information collector 2062. In addition, the drive fan 2061 is electrically connected to the information collector 2062 via a wiring harness. By obtaining power from an external source using the information collector 2062, the drive fan 2061 is driven to rotate.

[0071] In some embodiments of this disclosure, as shown in Figures 1, 2, and 32, the energy storage module 201 may further include a ventilation panel 207, which is located on the side of the drive fan 2061 away from the energy storage unit 220, and is provided with an air outlet hole 20722. As shown in Figure 1, the ventilation panel 207 and the heat dissipation end plate 206 are both located in front of the energy storage unit 220, with the heat dissipation end plate 206 positioned between the ventilation panel 207 and the energy storage unit 220, and the ventilation panel 207 is mounted on the heat dissipation end plate 206. Furthermore, the ventilation panel 207 can be mounted on the heat dissipation end plate 206 by magnetic attraction, or it can be mounted on the heat dissipation end plate 206 by bolts. The specific assembly method of the ventilation panel 207 and the heat dissipation end plate 206 will be selected depending on the actual situation. When the drive fan 2061 is operating, the blades of the drive fan 2061 rotate. Under the operation of the drive fan 2061, the gas in the first air duct 210 flows along the first air duct 210 toward the drive fan 2061, and the heat generated by the cell 208 is removed by the gas flow. The gas carried out by the drive fan 2061 is finally discharged to the outside of the energy storage module 201 through the air outlet hole 20722 on the ventilation panel 207, thereby achieving the function of dissipating hot air. In addition, the ventilation panel 207 can also shield the drive fan 2061, preventing it from being exposed to the outside of the energy storage module 201.

[0072] In some embodiments of the present disclosure, as shown in Figures 1 and 2, the energy storage module 201 may further include an end plate 2081, which is arranged at the other end of the energy storage unit 220 and spaced apart from the energy storage unit 220, and which is connected to a top cover 213 and / or a bottom cover 214, and which is provided with a first air inlet hole 2082 that communicates with a first air duct 210. The end plate 2081 may be connected directly or indirectly to both the top cover 213 and the bottom cover 214, and the end plate 2081 may be assembled directly with the top cover 213 and the bottom cover 214 by bolts. As shown in Figure 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 attached directly or indirectly to the first side plate 211 and the second side plate 212. A connecting piece 2083 is also provided on the busbar mounting rack 2084. The end plate 2081 may be attached to the top cover 213 and / or the bottom cover 214, thereby enabling an indirect connection between the end plate 2081 and the first side plate 211 and the second side plate 212. In addition, the end plate 2081 is provided with a first air inlet hole 2082 that communicates with the first air duct 210, so that gas can flow into the energy storage module 201 from the first air inlet hole 2082. Part of the gas flowing into the energy storage module 201 flows into the heat sink 209, and another part of the gas flows into the second air duct 216, so that the cell 208 is surrounded by gas, thereby improving the heat dissipation efficiency of the cell 208.

[0073] In some embodiments of the present disclosure, as shown in Figure 1, the top cover 213 and / or the bottom cover 214 may be provided with a second air inlet hole 215 connected to a second air duct 216. For example, both the top cover 213 and the bottom cover 214 are provided with a second air inlet hole 215 connected to a second air duct 216. Cold air can flow into the second air duct 216 through the second air inlet hole 215, and as a result the cell 208 is surrounded by cold air, thereby further improving the heat dissipation efficiency of the cell 208.

[0074] In some embodiments of this disclosure, as shown in Figure 11, the cell 208 may be flat and blade-like, and the cell 208 may be a new type of lithium iron phosphate battery. The length dimension of the cell 208 is E, where E satisfies the relation 400 mm ≤ E ≤ 1500 mm; the width dimension of the cell 208 is F, where F satisfies the relation 70 mm ≤ F ≤ 150 mm; and the thickness dimension of the cell 208 is G, where G satisfies the relation 10 mm ≤ G ≤ 25 mm. This configuration allows flat cells 208 to be placed within an energy storage module 201, and the energy density within the energy storage module 201 can be improved by arranging multiple cells 208 sequentially along the thickness direction of the cells 208.

[0075] An energy storage cabinet according to an embodiment of the present disclosure includes an energy storage module 201 of the above embodiment, the energy storage module 201 having 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 for fixing cells 208 within the energy storage module 201, and more cells 208 can be placed within 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 size of the energy storage module 201 and the energy storage cabinet will be smaller.

[0076] In some embodiments of the present disclosure, as shown in Figures 23 to 31, two energy storage modules 201 are connected by an electrical connection assembly 100, which is suitable for connecting the two energy storage modules 201 in series or in parallel to provide an electrical connection between the two energy storage modules 201. For illustrative purposes, the present disclosure takes an example in which an electrical connection assembly 100 is connected in series between two energy storage modules 201. Each energy storage module 201 may be provided with two connection terminals 202, one of which is configured as a positive connection terminal 2029 of the energy storage module 201, and the other of which is configured as a negative connection terminal 2030 of the energy storage module 201.

[0077] As shown in Figures 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 insertion and alignment with the connection terminal 202 for electrically connecting the conductive bar 10 to the connection terminal 202. The insulating cover 20 covers the conductive bar 10. The insulating cover 20 can prevent the conductive bar 10 from protruding from the connection terminal 202. The insulating cover 20 is connected to the connection terminal 202 and is suitable for pressing the conductive bar 10.

[0078] When two energy storage modules 201 need to be connected in series, the conductive bar 10 is inserted and connected to the positive terminal 2029 of one of the two energy storage modules 201, and the conductive bar 10 is also inserted and connected to the negative terminal 2030 of the other energy storage module 201, so that the two energy storage modules 201 are connected in series. In the insertion process of the conductive bar 10 and the terminal 202, it is not necessary to use a tool such as a wrench to insert the conductive bar 10 into the terminal 202, thereby facilitating docking of the conductive bar 10 and the terminal 202, improving the assembly efficiency of the conductive bar 10 and the terminal 202, and also reducing the installation cost of the conductive bar 10 and the terminal 202. At the same time, the insulating cover 20 is connected to the terminal 202, and the insulating cover 20 presses against the conductive bar 10. By pressing the insulating cover 20 against the conductive bar 10, the conductive bar 10 can be securely inserted into the connection terminal 202, which avoids virtual connections between the conductive bar 10 and the connection terminal 202, prevents arc discharge, improves the safety of the electrical connection assembly 100, and also improves the safety of the energy storage module 201. In addition, the insulating cover 20 is an insulating material and covers the conductive bar 10, which prevents the conductive bar 10 from being exposed, avoids leakage current, and improves high-voltage safety.

[0079] In some embodiments of the present disclosure, as shown in Figures 26 to 29 and 31, the conductive bar 10 may include a first subconducting bar 11, a second subconducting bar 12, and a third subconducting bar 13. The first subconducting bar 11 and the third subconducting bar 13 are each used to insert and interact with their corresponding connector terminals 202. The second subconducting bar 12 is connected between the first subconducting bar 11 and the third subconducting bar 13 to separate them, resulting in the formation of clearance spaces 14 between the first subconducting bar 11 and the second subconducting bar 12 and between the third subconducting bar 13 and the second subconducting bar 12, each clearance space 14 being used to constitute the connector terminals 202.

[0080] As shown in Figures 30 and 31, the energy storage module 201 may be provided with a foolproof slot 203. The shape of the foolproof slot matches the shape of the conductive bar 10. If two energy storage modules 201 need to be connected in series, the first sub-conductive bar 11 is plugged into the positive terminal 2029 of one of the two energy storage modules 201, and the negative terminal 2030 of the energy storage module 201 connected to the first sub-conductive bar 11 is located in the clearance space 14 between the first sub-conductive bar 11 and the second sub-conductive bar 12. The third sub-conductive bar 13 is plugged into the negative terminal 2030 of the other of the two energy storage modules 201, and the positive terminal 2029 of the energy storage module 201 connected to the third sub-conductive bar 13 is located in the clearance space 14 between the third sub-conductive bar 13 and the second sub-conductive bar 12. The conductive bar 10 is located within the foolproof slot 203, which restricts the conductive bar 10 along its length, width, and thickness. This configuration allows the conductive bar 10 to be hidden within the foolproof slot 203, preventing damage to the conductive bar 10 and facilitating its positioning. In addition, by setting the foolproof slot 203 as a curved structure and assembling it in conjunction with the conductive bar 10, it is possible to prevent the conductive bar 10 from being installed incorrectly, thus providing a foolproof function.

[0081] In some embodiments of this disclosure, one end of a second subconducting bar 12 is connected to a first subconducting bar 11, and the other end of the second subconducting bar 12 is connected to a third subconducting bar 13, with the first subconducting bar 11 and the third subconducting bar 13 extending away from each other. As shown in Figures 26 to 29 and 31, one end of the second subconducting bar 12 is connected to one end of the first subconducting bar 11, and the other end of the second subconducting bar 12 is connected to one end of the third subconducting bar 13. Furthermore, the second subconducting bar 12 is positioned perpendicular to the first subconducting bar 11 and the third subconducting bar 13. Such an 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, and as a result the arrangement of the first sub-conductive bar 11, the second sub-conductive bar 12, and the third sub-conductive bar 13 is rational. In addition, the conductive bar 10 can be configured as a "Z" shaped structure. Configuring the conductive bar 10 as a "Z" shaped structure and having the positive electrode connection terminal 2029 and the negative electrode connection terminal 2030 lead out from the same side of the energy storage module 201 facilitates the installation and disassembly of the electrical connection assembly 100, as well as the maintenance of the electrical connection assembly 100.

[0082] In some embodiments of the present disclosure, as shown in Figures 26 to 28, the conductive bar 10 is provided with a positioning slot 15, which is suitable for positioning and aligning with the connection terminal 202. Furthermore, the positioning slot 15 penetrates the conductive bar 10 in the thickness direction. Positioning slots 15 can be provided in the first sub-conductive bar 11 and the third sub-conductive bar 13, and a limiting projection 2026 can be provided in the connection terminal 202. After the conductive bar 10 is inserted into the connection terminal 202, the limiting projection 2026 extends into the positioning slot 15 of the conductive bar 10. The cooperation between the limiting projection 2026 and the positioning slot 15 ensures that the conductive bar 10 is securely inserted into the connection terminal 202, which prevents separation of the connection terminal 202 and the conductive bar 10, thereby further avoiding a virtual connection between the conductive bar 10 and the connection terminal 202 and also prevents the conductive bar 10 from wobbling relative to the connection terminal 202.

[0083] Furthermore, multiple positioning slots 15 can be provided on both the first sub-conductive bar 11 and the third sub-conductive bar 13, and multiple limiting protrusions 2026 can be provided on the connection terminal 202. The cooperation of the multiple positioning slots 15 and the multiple limiting protrusions 2026 allows the conductive bar 10 to be inserted into the connection terminal 202 more securely, and further prevents the connection terminal 202 and the conductive bar 10 from separating, thereby further avoiding a virtual connection between the conductive bar 10 and the connection terminal 202, and further preventing the conductive bar 10 from shaking relative to the connection terminal 202.

[0084] In some embodiments of the present disclosure, as shown in Figures 23, 28, and 29, the insulating cover 20 may include an insulating cover body 21 and a first clamping portion 22, the insulating cover body 21 covering the conductive bar 10 and suitable for pressing against the conductive bar 10, the first direction of the insulating cover 20 being the left-right direction in the figures when the electrical connection assembly 100 is positioned in the direction of Figure 23, the first clamping portion 22 is provided on at least one side of the insulating cover body 21, for example, the first clamping portion 22 is provided on both sides of the insulating cover body 21 in the first direction, and the first clamping portion 22 is suitable for clamping against 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 connection terminal 202. As a result, 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 connection terminal 202. The insulating cover body 21 covers the conductive bar 10, which serves an insulating protection role, preventing leakage current in the electrical connection assembly 100 and improving the safety of using the electrical connection assembly 100. At the same time, by clamping the insulating cover 20 and the connection terminal 202 together, disassembly and assembly of the insulating cover 20 and the connection terminal 202 become easier, which improves the assembly efficiency of the insulating cover 20 and the connection terminal 202.

[0085] In some embodiments of this disclosure, when the electrical connection assembly 100 is positioned in the direction shown in Figure 23 in a second direction of the insulating cover 20, the second direction of the insulating cover 20 refers to the front-to-back direction shown in Figure 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 Figures 23, 27, and 29, the connection terminal 202 defines a plug-in slot 2023. As shown in Figures 23 and 27, when the electrical connection assembly 100 is positioned in the direction shown in Figure 27, the upper end of the plug-in slot 2023 is open, and in the second direction of the insulating cover 20, both the front end and the rear end of the plug-in slot 2023 are open. 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, thereby achieving insertion matching between the conductive bar 10 and the connection terminal 202. After the conductive bar 10 is inserted into the insertion slot 2023, the insulating cover 20 is installed on the connection terminal 202. The shielding portion 23 can shield the open end of the insertion slot 2023 in a second direction, thereby shielding the conductive bar 10 and further preventing leakage of current from the electrical connection assembly 100. Furthermore, the insulating cover 20 is located at the upper end of the insertion slot 2023, and the insulating cover 20 restricts the position of the conductive bar 10, thereby preventing the conductive bar 10 from protruding from the insertion slot 2023.

[0086] In some embodiments of this disclosure, as shown in Figures 23, 26 to 28, an insulating sheath 30 is provided on the outer cover of the conductive bar 10, and the insulating sheath 30 has an insulating function. Furthermore, the insulating sheath 30 can be made of an insulating adhesive. In addition, 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 to the outside of the insulating sheath 30. By placing the insulating sheath 30 on the outside of the conductive bar 10, leakage current of the conductive bar 10 can be avoided, electric shock after a user touches the conductive bar 10 can be prevented, and thereby further improve the safety of the electrical connection assembly 100.

[0087] Energy storage modules 201 are provided with connection terminals 202, and multiple energy storage modules 201 are provided in an energy storage cabinet. The multiple energy storage modules 201 are stacked sequentially 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, and the two connection terminals 202 are located at the same end of the energy storage module 201, one of the two connection terminals 202 is configured as the positive connection terminal 2029 of the energy storage module 201, and the other of the two connection terminals 202 is configured as the negative connection terminal 2030 of the energy storage module 201. An electrical connection assembly 100 is used to electrically connect two energy storage modules 201.

[0088] When two energy storage modules 201 need to be connected in series, the conductive bar 10 is inserted and connected to the positive terminal 2029 of one of the two energy storage modules 201, and the conductive bar 10 is also inserted and connected to the negative terminal 2030 of the other energy storage module 201, so that the two energy storage modules 201 are connected in series. In the insertion process of the conductive bar 10 and the terminal 202, it is not necessary to use a tool such as a wrench to insert the conductive bar 10 into the terminal 202, which facilitates docking the conductive bar 10 and the terminal 202, improves the assembly efficiency of the conductive bar 10 and the terminal 202, thereby improving the assembly efficiency of the energy storage cabinet and reducing the installation cost of the conductive bar 10 and the terminal 202. At the same time, the insulating cover 20 is connected to the terminal 202, and the insulating cover 20 presses against the conductive bar 10. By pressing the insulating cover 20 against the conductive bar 10, the conductive bar 10 can be securely inserted into the connection terminal 202, which avoids virtual connections between the conductive bar 10 and the connection terminal 202, prevents arc discharge, improves the safety of the electrical connection assembly 100, and also improves the safety of the energy storage module 201, thereby improving the safety of the energy storage cabinet. In addition, the insulating cover 20 is an insulating material and covers the conductive bar 10, which prevents the conductive bar 10 from being exposed, prevents leakage current, and improves high-voltage safety.

[0089] In some embodiments of the present disclosure, as shown in Figure 31, the energy storage module 201 is provided with two connection terminals 202, one of which is connected to the conductive bar 10 and the other connection terminal 202 is away from the conductive bar 10. Each energy storage module 201 is provided with two connection terminals 202, and to keep the connection terminals 202 away from the conductive bar 10 and to avoid interference between the connection terminals 202 and the conductive bar 10, one of the two connection terminals 202 of the energy storage module 201 is connected to the conductive bar 10 and the other connection terminal 202 is located in a clearance space 14 formed by the conductive bar 10. The two connection terminals 201 are located at the same end of the energy storage module 201 and are located close together on the same side of the energy storage module 201. It can also be understood that the energy storage module 201 is provided with a positive terminal 2029 and a negative terminal 2030, and that the positive terminal 2029 and the negative terminal 2030 are located in close proximity on the same side of the energy storage module 201.

[0090] As shown in Figure 31, when the electrical connection assembly 100 and connection terminals 202 are oriented in the direction of Figure 31, the positive connection terminal 2029 and the negative connection terminal 2030 are located close together on the same side of the energy storage module 201, for example, the positive connection terminal 2029 and the negative connection terminal 2030 are located close together on the left side of the energy storage module 201.

[0091] In some embodiments of the present disclosure, as shown in Figures 26 and 27, the connector terminal 202 may include a conductive elastic piece 2021 and an insulating terminal body 2022, the terminal body 2022 defining a socket slot 2023, the conductive elastic piece 2021 being arranged within the socket slot 2023, and the conductive bar 10 being inserted into the socket slot 2023 and in contact with the conductive elastic piece 2021. Furthermore, when the electrical connection assembly 100 is positioned in the orientation shown in Figure 27, the upper end of the socket slot 2023 is open, and in a second orientation of the insulating cover 20, both the front and rear ends of the socket slot 2023 are open, and the conductive bar 10 is pushed into the socket slot 2023 of the connector terminal 202 from the open end of the socket 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.

[0092] 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, the first conductive elastic piece 2024 and the second conductive elastic piece 2025 being positioned opposite each other in a first direction of the connection terminal 202, the first direction of the connection terminal 202 coinciding with a first direction of the insulating cover 20, and the conductive bar 10 being suitable for insertion between the first conductive elastic piece 2024 and the second conductive elastic piece 2025. Furthermore, there are multiple first conductive elastic pieces 2024 and multiple second conductive elastic pieces 2025, which are arranged sequentially along the second direction of the connection terminal 202, with each of the multiple first conductive elastic pieces 2024 and multiple second conductive elastic pieces 2025 corresponding to one another, and the second direction of the connection terminal 202 coincides with the second 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 opening 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, ensuring that the conductive bar 10 is in secure contact with both the first conductive elastic piece 2024 and the second conductive elastic piece 2025, thereby further avoiding a virtual connection between the conductive bar 10 and the connection terminal 202.

[0093] Furthermore, as shown in Figures 26 and 27, the conductive bar 10 is provided with a positioning slot 15, and at least one of the first conductive elastic piece 2024 and the second conductive elastic piece 2025 has a limiting projection 2026, which is suitable for extending into the positioning slot 15 of the conductive bar 10. The positioning slot 15 can penetrate the conductive bar 10 in its thickness direction, and the first sub-conductive bar 11 and the third sub-conductive bar 13 are provided with positioning slots 15, and both the first conductive elastic piece 2024 and the second conductive elastic piece 2025 are provided with limiting projections 2026, and after the conductive bar 10 is inserted into the connection terminal 202, the limiting projections 2026 extend into the positioning slot 15 of the conductive bar 10. The cooperation between the limiting projection 2026 and the positioning slot 15 ensures that the conductive bar 10 is securely inserted into the connection terminal 202, preventing the conductive elastic piece 2021 and the conductive bar 10 from separating. This further prevents a virtual connection between the conductive bar 10 and the conductive elastic piece 2021, and also prevents the conductive bar 10 from shaking relative to the connection terminal 202. In addition, by extending the limiting projection 2026 into the positioning slot 15 of the conductive bar 10, it is possible to determine whether the conductive bar 10 is inserted in the predetermined position.

[0094] In some embodiments of the present disclosure, as shown in Figures 23 and 26, the connection terminal 202 may further include a conductive member 2027, which may be set as a metallic member, and the conductive member 2027 is connected to a conductive elastic piece 2021, and the conductive member 2027 is suitable for electrical connection to an energy storage module 201. Furthermore, one end of the conductive member 2027 extends into a socket slot 2023 and is connected to the conductive elastic piece 2021. When the connection terminal 202 is installed in the energy storage module 201, the conductive member 2027 is connected between the conductive elastic piece 2021 and the energy storage module 201 to achieve an electrical connection between the connection terminal 202 and the energy storage module 201.

[0095] In some embodiments of this disclosure, as shown in Figures 23 and 26, the insulating cover 20 is provided with a first clamping portion 22, and the connector terminal 202 is provided with a second clamping portion 2028, the second clamping portion 2028 being suitable for clamping by the first clamping portion 22 of the insulating cover 20. In a first direction of the connector terminal 202, the second clamping portions 2028 are provided on both sides of the connector terminal 202, and one second clamping portion 2028 is connected to the first clamping portion 22. By clamping the second clamping portion 2028 with the first clamping portion 22, the insulating cover 20 is made easier to install on the connector terminal 202 and easier to remove from the connector terminal 202, in order to improve the efficiency of disassembly and assembly of the insulating cover 20 and the connector terminal 202. However, this disclosure is not limited thereto, and the insulating cover 20 and the connector terminal 202 may also be assembled by bolts. The specific assembly method for the insulating cover 20 and the connection terminals 202 can be selected according to the actual situation.

[0096] Furthermore, as shown in Figures 23 and 26, the first clamping portion 22 is either a clamping hole or a clamping hook, and the second clamping portion 2028 is the other of the clamping hole and 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 assembly process of the insulating cover 20 and the connecting terminal 202, the insulating cover 20 is pressed so that the clamping hook fits into the clamping hole, and the assembly of the insulating cover 20 and the connecting terminal 202 can be completed. Such a configuration 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 connecting terminal 202, and improves the manufacturing efficiency of the insulating cover 20 and the connecting terminal 202.

[0097] In some embodiments of the present disclosure, in a second direction of the connector terminal 202, the two ends of the insertion slot 2023 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 connector terminal 202 is positioned in the direction shown in Figure 27, the upper end of the insertion slot 2023 is open, and in a second direction of the connector terminal 202, both ends of the insertion slot 2023 are open, and the conductive bar 10 is pushed into the insertion slot 2023 of the connector 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 placed 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 current from the electrical connection assembly 100.

[0098] Furthermore, as shown in Figure 23, a mounting post 2031 is provided on the connection terminal 202, and a bolt is passed through the mounting post 2031 to connect the connection terminal 202 to the energy storage module 201, thereby fixing the connection terminal 202 to the energy storage module 201.

[0099] It should be noted that first, multiple energy storage modules 201 are installed in the energy storage cabinet, stacked sequentially in the height direction of the energy storage cabinet, and then a conductive bar 10 is installed in the foolproof slot 203, with the lower end of the conductive bar 10 aligned with the connection terminal 202 of the energy storage module 201 located below, and the upper end of the conductive bar 10 aligned with the connection terminal 202 of the energy storage module 201 located above, and the conductive bar 10 is firmly pressed until it is impossible to push the conductive bar 10 any further into the insertion slot 2023, thereby placing the conductive bar 10 between the first conductive elastic piece 2024 and the second conductive elastic piece 2025.

[0100] In this specification, the following reference terms are used: “one embodiment,” “several embodiments,” “exemplary embodiment,” “example,” “specific example,” and “several examples.” These reference terms mean that any particular feature, structure, material, or property described in conjunction with an embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the exemplary descriptions of the aforementioned terms do not necessarily refer to the same embodiment or example. In addition, any particular feature, structure, material, or property described may be combined in an appropriate manner in any one or more embodiments or examples.

[0101] While embodiments of this disclosure are shown and described, those skilled in the art will understand that various modifications, alterations, substitutions, and variations may be made to the embodiments without departing from the principles and purposes of this disclosure. The scope of this disclosure is defined by the claims and their equivalents.

Claims

1. An energy storage unit (220) comprising a plurality of cells (208), wherein the plurality of cells (208) are arranged sequentially in the thickness direction of the cells (208), A first side plate (211) and a second side plate (212), wherein the energy storage unit (220) is provided between the first side plate (211) and the second side plate (212), A support beam (219) is provided such that the first side plate (211) and the second side plate (212) can sandwich the energy storage unit (220), the support beam (219) extends in the thickness direction of the cell (208), the support beam (219) is connected between the first side plate (211) and the second side plate (212), and the support beam is positioned on at least one side of the energy storage unit (220) in the width direction of the cell (208), and Equipped with, The unit further comprises a top cover (213) and a bottom cover (214), the top cover (213) and the bottom cover (214) respectively located on two sides of the energy storage unit (220) in the width direction of the cell (208), the top cover (213) and the bottom cover (214) both connected to the first side plate (211) and the second side plate (212), and the separation action of the support beam (219) forms a second air duct (216) between the surface of the energy storage unit (220) near the top cover (213) and the top cover (213) and / or between the surface of the energy storage unit (220) near the bottom cover (214) and the bottom cover (214). Energy storage module (201) wherein the support beam (219) is in contact with the surface of the energy storage unit (220) near the top cover (213) and the top cover (213) in order to divide the second air duct (216) into a plurality of sub-air ducts (217), and / or the support beam (219) is in contact with the surface of the energy storage unit (220) near the bottom cover (214) and the bottom cover (214), and the support beam (219) has an air passage (218) connecting two adjacent sub-air ducts (217).

2. The energy storage module (201) according to claim 1, wherein the support beam (219) spans all of the cells (208) in the thickness direction of the cells (208).

3. The energy storage module according to claim 1 or 2, wherein both the first side plate (211) and the second side plate (212) are provided with mounting holes (223) for assembling the support beam (219), the axis of the mounting holes (223) extends in the thickness direction of the cell (208), and fasteners pass through the mounting holes (223) and engage with the support beam (229) so that the first side plate (211) and the second side plate (212) can clamp the energy storage unit (220).

4. An energy storage cabinet comprising the energy storage module (201) according to claim 1 or 2.

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