Energy storage cabinet

Abstract

To provide an energy storage cabinet.SOLUTION: An energy storage cabinet includes: a bracket including a support that includes a pipe member and a partition dividing an internal flow channel of the pipe member into a first flow channel and a second flow channel; a plurality of battery packs provided on the bracket; and a cooling device. Each battery pack has a first vent and a second vent. The second vent of a first battery pack is in communication with the second flow channel, and the first vent of a second battery pack is in communication with the first flow channel. The cooling device is disposed to produce cool air, and the cool air enters the first vent of the first battery pack and the first flow channel. When the cool air passes through the first battery pack, the cool air is heated and becomes warm air, and the warm air is then discharged into the second flow channel through the second vent of the first battery pack.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present disclosure relates to an energy storage cabinet.

Background Art

[0002] Power storage devices generally include a plurality of batteries. In order to maintain the temperature of the batteries within an appropriate operating temperature range, the power storage device needs to have a temperature control mechanism.

Summary of the Invention

Problems to be Solved by the Invention

[0003] In view of this, an object of the present disclosure is to propose an improved energy storage cabinet that can effectively control the temperature of the energy storage cabinet by uniformly dissipating heat from the battery packs therein.

Means for Solving the Problems

[0004] According to some embodiments of the present disclosure, an energy storage cabinet includes a bracket including a pipe member having a first internal flow path, and a partition plate provided in the pipe member and partitioning the first internal flow path into at least one first flow path and a second flow path; a shell provided on the bracket and having at least one first vent and a second vent; and a plurality of battery cells provided in the shell. The energy storage cabinet further includes a plurality of battery packs including at least one first battery pack and at least one second battery pack provided on opposite sides of the first support column, and a cooling device arranged to generate cold air. The second vent of the first battery pack communicates with the second flow path, the first vent of the second battery pack communicates with the first flow path, cold air flows into the first vent of the first battery pack, flows into the first flow path of the first support column, and is heated when passing through the first battery pack and converted into warm air. The warm air is discharged into the second flow path of the first support column via the second vent of the first battery pack.

[0005] In the embodiments of this disclosure, the two sides and the central portion of the partition plate are fixed to the inner wall of the pipe member.

[0006] In embodiments of the present disclosure, the inner wall of the pipe member has opposing first and second wall portions, the two sides of the partition plate are fixed to the first wall portion, and the central portion of the partition plate is fixed to the second wall portion.

[0007] In the embodiments of this disclosure, there are two first flow channels, located on both sides of the central portion of the partition plate, and there are two first ventilation openings of the second battery pack, each communicating with one of the two first flow channels.

[0008] In embodiments of the present disclosure, the partition plate is folded in a stepped manner between a central portion and two side edges.

[0009] In embodiments of the present disclosure, the first support column extends substantially vertically, and a plurality of first and second battery packs are arranged to be stacked along the first support column, with a second ventilation opening of each first battery pack communicating with a second flow path of the first support column, and a first ventilation opening of each second battery pack communicating with a first flow path of the first support column.

[0010] In embodiments of the present disclosure, the bracket further includes a second support column and a cold air duct, the first battery pack is provided between the first support column and the second support column, the second support column has a second internal flow path communicating with a first vent of the first battery pack, and the cold air duct is connected to the cold air outlet of the cooling device, the first flow path of the first support column and the second support column.

[0011] In embodiments of the present disclosure, the bracket further includes a third support column and a hot air duct, the second battery pack is provided between the third support column and the first support column, the third support column has a third internal passage that communicates with a second vent of the second battery pack, and the hot air duct is connected to the hot air intake of the cooling device, the second passage of the first support column and the third support column to return hot air to the cooling device.

[0012] In embodiments of the present disclosure, a plurality of battery packs are arranged in a plurality of stacks so as to be stacked vertically, with one of the cold air ducts and the hot air duct extending over the battery packs and the other of the cold air ducts and the hot air duct extending below the battery packs.

[0013] In embodiments of the present disclosure, the cooling device is provided on the side of the battery pack, and the cold air duct and the hot air duct extend substantially horizontally to the side of the battery pack and are connected to the cooling device.

[0014] In embodiments of the present disclosure, the first battery pack further includes a first flattened tube provided to surround a second ventilation opening, the tube member of the first support having a lateral opening communicating with a second flow path, and the first support further includes a second flattened tube provided to surround the lateral opening and coupled to the first flattened tube, the first flattened tube and the second flattened tube each having a first and second slanted edge structure that are complementary in shape and in contact with each other.

[0015] In embodiments of the present disclosure, the second battery pack further includes a first flattened tube provided to surround a first ventilation opening, the tube member of the first support having a lateral opening communicating with a first flow path, and the first support further includes a second flattened tube provided to surround the lateral opening and coupled to the first flattened tube, the first flattened tube and the second flattened tube each having a first and second slanted edge structure that are complementary in shape and in contact with each other.

[0016] In embodiments of this disclosure, the energy storage cabinet further comprises an insulating member that covers the top of the battery pack.

[0017] In embodiments of this disclosure, the thermal insulation member includes at least one of a liquid storage tank and a thermal insulation lid. [Effects of the Invention]

[0018] In summary, in the energy storage cabinet of this disclosure, the bracket columns are hollow in structure and function as air passages while also communicating with the internal space of the battery packs. As a result, the columns and battery packs together form a narrow, enclosed space, and the cooling system of the energy storage cabinet generates airflow circulating within this narrow, enclosed space, contributing to temperature regulation of the battery packs. Conversely, conventional energy storage cabinets generally use an air conditioning system to control the temperature of the entire internal space of the energy storage cabinet. This method consumes a relatively large amount of air conditioning power and requires the installation of an air conditioning system with relatively high cooling capacity in the energy storage cabinet. Furthermore, a partition plate is provided within the column, dividing the internal air passage of the column into a cold air passage and a warm air passage. As a result, the column can guide both cold and warm air simultaneously while avoiding mixing of cold and warm air. The above technical solution not only contributes to energy saving of the cooling system but also makes the temperature of each battery pack in the energy storage cabinet relatively uniform. [Brief explanation of the drawing]

[0019] To make the above and other purposes, features, advantages and embodiments of this disclosure clearer and easier to understand, the accompanying drawings are described below. [Figure 1] A side view showing an energy storage cabinet according to one embodiment of the present disclosure. [Figure 2] Figure 1 is a perspective view showing one battery pack in an energy storage cabinet. [Figure 3] Figure 1 is a localized enlarged view showing the slots in the energy storage cabinet. [Figure 4] This is a cross-sectional view of the energy storage cabinet shown in Figure 1, along line segment 4-4'. [Figure 5] This is a cross-sectional view of the energy storage cabinet shown in Figure 1, along the line segment 5-5'. [Figure 6] This is a cross-sectional view of the energy storage cabinet shown in Figure 1, along the line segment 6-6'. [Figure 7]A side view showing an energy storage cabinet according to another embodiment of the present disclosure.

Mode for Carrying Out the Invention

[0020] By referring to the accompanying drawings and various embodiments described below, the description of the present disclosure can be made more detailed and complete. Each element in the drawings is not drawn to scale and is merely provided for the purpose of explaining the present disclosure. Many of the practical details described below are for the purpose of fully understanding the present disclosure, and those skilled in the art should be able to understand that the present disclosure can be implemented even without one or more of these practical details. Therefore, these details should not be construed as limiting the present disclosure.

[0021] Please refer to FIG. 1. FIG. 1 is a side view showing an energy storage cabinet 20 according to an embodiment of the present disclosure. The energy storage cabinet 20 includes a bracket 22 and one or more battery packs 21 provided on the bracket 22. The bracket 22 is used for placing the battery pack 21. The bracket 22 may have one or more slots for accommodating each battery pack 21. The battery pack 21 is provided to be insertable into and removable from the slot of the bracket 22. In other words, the battery pack 21 may be inserted into the slot or removed from the slot (for example, when repair or maintenance is required) as needed. The bracket 22 may include a slide rail structure (not shown in FIG. 1), and the battery pack 21 may be connected to the slide rail structure of the bracket 22 so that it can slide in and out of the slot. In some embodiments, the energy storage cabinet 20 may further include a plurality of door panels (not shown) that cover the side surface of the bracket 22 to isolate the battery pack 21 from the external environment as needed.

[0022] As shown in FIG. 1, a plurality of battery packs 21 are provided so as to be stacked along the vertical direction (for example, the Z direction shown in the figure). The plurality of battery packs 21 may be divided into a plurality of layer assemblies 23 (floor assemblies), and the battery packs 21 located in the same horizontal layer belong to the same layer assembly 23 (for example, the battery packs 21 of the same layer assembly 23 are arranged along the X direction). In the illustrated embodiment, the energy storage cabinet 20 includes nine layer assemblies 23, and one of the layer assemblies 23 is shown by a dashed frame in the figure. The plurality of battery packs 21 in each layer assembly 23 are connected in series so that the voltages of the plurality of battery packs 21 in the layer assembly 23 are added to output a larger voltage. Each layer assembly 23 may include one common anode and one common cathode.

[0023] As shown in FIG. 1, the energy storage cabinet 20 further includes a connection device 26 (junction device). The connection device 26 is provided on the bracket 22, located on one side of the energy storage cabinet 20, and is connected to the common anode and common cathode (not shown) of each layer assembly 23. The connection device 26 may include a DC connection unit (DC junction unit), an AC auxiliary unit (AC auxiliary unit), and one or more control units (or one or more switch units).

[0024] As shown in FIG. 1, the energy storage cabinet 20 further includes at least one cooling device 28 provided on the bracket 22 and located on the other side of the energy storage cabinet 20. The cooling device 28 can generate cold air, and the cold air may be guided to flow through the battery packs 21 to help cool down the battery packs 21. The cooling device 28 is, for example, an air conditioning system. In some embodiments, the connection device 26 and the cooling device 28 are provided on opposite sides of the battery packs 21.

[0025] As shown in Figure 1, the battery packs 21 are arranged in multiple stacks, and the brackets 22 of the energy storage cabinet 20 include multiple columns 50 that extend substantially vertically, each column 50 may be located between two adjacent stacks of battery packs 21, or outside the battery packs 21. In other words, the columns 50 and the stacks of battery packs 21 may be arranged alternately. In some embodiments, each battery pack 21 is located between two columns 50.

[0026] As shown in Figure 1, the support column 50 includes a tubular member 55 that is hollow and has an internal flow path. The internal flow path of the tubular member 55 may communicate with the internal space of the battery pack 21 (for example, the side walls of the tubular member 55 and the housing of the battery pack 21 may have openings at corresponding locations). The bracket 22 of the energy storage cabinet 20 further includes at least one cold air duct 58 and at least one hot air duct 59. In this embodiment, the cold air duct 58 extends to pass above the battery pack 21, and the hot air duct 59 extends to pass below the battery pack 21. The cold air duct 58 is connected to at least some of the top ends of the support column 50, and the hot air duct 59 is connected to at least some of the bottom ends of the support column 50. The internal flow path of the support column 50 communicates with the cold air duct 58 and the hot air duct 59. The cooling device 28 is provided on the side of the battery pack 21, and the cold air duct 58 and the hot air duct 59 extend substantially horizontally to the side of the battery pack 21 and are connected to the cooling device 28. The cooling device 28 has a cold air outlet 27A and a hot air inlet 27B, and in this embodiment, the cold air outlet 27A and the hot air inlet 27B are located at the top and bottom of the cooling device 28, respectively, and are connected to the cold air duct 58 and the hot air duct 59, respectively.

[0027] With the above arrangement, the battery pack 21, support column 50, cold air duct 58, warm air duct 59, and cooling device 28 of the energy storage cabinet 20 of this disclosure all constitute a narrow, enclosed space, and the cooling device 28 generates airflow circulating within this narrow, enclosed space, contributing to the temperature regulation of the battery pack 21. Conversely, conventional energy storage cabinets generally use an air conditioning system to control the temperature of the entire interior space of the energy storage cabinet. This method consumes a relatively large amount of air conditioning power, and requires the installation of an air conditioning system with relatively high cooling capacity in the energy storage cabinet.

[0028] As shown in Figure 1, the cold air generated by the cooling device 28 can flow along the first path P1, that is, the cold air first flows through the cold air duct 58, then flows downward along the internal flow path of the support column 50, and then flows into the internal space of the battery pack 21 from one side. The cold air is heated and converted into warm air as it passes through the battery pack 21, and the temperature of the warm air is higher than that of the cold air. The warm air can flow along the second path P2, that is, the warm air leaves the internal space of the battery pack 21 from the other side of the battery pack 21, then flows downward along the internal flow path of the support column 50, then flows into the warm air duct 59, and finally returns to the cooling device 28.

[0029] Figure 1 schematically shows only a few flow paths for the cold and hot air, which is done to maintain the simplicity of the lines in the drawing and make it easy to read. It should be noted that this does not mean that the cold and hot air will only flow through these few flow paths. In reality, the cold air may be guided to flow into each battery pack 21, and the hot air discharged from each battery pack 21 may be guided back to the cooling device 28.

[0030] Please refer to Figure 2. Figure 2 is a perspective view showing one battery pack 21 in the energy storage cabinet 20 shown in Figure 1. In Figure 2, the top cover of the battery pack 21 is removed to facilitate the explanation of its components. The battery pack 21 includes a shell 29 and a plurality of battery cells 12 provided within the shell 29. The battery cells 12 are, for example, lithium batteries. The battery cells 12 may be prismatic cells or pouch-type cells. The battery cells 12 are arranged in at least one row along direction D.

[0031] As shown in Figure 2, each battery cell 12 includes two electrode terminals 15, including one positive terminal 13 and one negative terminal 14, which are arranged in parallel above the battery cell 12. The battery pack 21 further includes a plurality of first battery cell series connection elements 30, which may also be called busbar elements, and are housed within a shell 29 and arranged to connect the battery cells 12 in series. Specifically, the first battery cell series connection elements 30 are electrically connected to the positive terminal 13 and negative terminal 14 of two adjacent battery cells 12 located in the same row. In some embodiments, the battery pack 21 further includes at least one second battery cell series connection element 40, which is housed within a shell 29 and is electrically connected to the electrode terminals 15 of two adjacent rows of battery cells 12. The first battery cell series connection elements 30 and the second battery cell series connection elements 40 may be made of a conductive material such as copper or a copper alloy.

[0032] As shown in Figure 2, the shell 29 of the battery pack 21 has at least one intake port 24 and at least one exhaust port 25, and the intake port 24 and exhaust port 25 may be provided on opposing sides of the shell 29 (for example, on two opposing side walls of the shell 29). The intake port 24 and exhaust port 25 communicate with the internal flow path of the support column 50 shown in Figure 1. Cold air generated by the cooling device 28 flows into the internal flow path of the support column 50 and can further enter the shell 29 via the intake port 24. The cold air is heated as it passes through the battery pack 21 (for example, the cold air may absorb heat from elements of the battery pack 21 such as the battery cells 12, the first battery cell series connection element 30, and the second battery cell series connection element 40 to help dissipate heat from the battery pack 21) and converted into warm air, which is then discharged into the internal flow path of the support column 50 via the exhaust port 25.

[0033] In some embodiments, the energy storage cabinet 20 has a fire-fighting mechanism to deal with situations where the battery cells 12 fail, causing the temperature to become uncontrolled and potentially leading to ignition and combustion. If the energy storage cabinet 20 detects that the battery pack 21 has become overheated, the energy storage cabinet 20 is configured to inject a cooling liquid (e.g., pure water) into the shell 29 of the battery pack 21. In these embodiments, at least one of the intake port 24 and exhaust port 25 may function as an outlet for excess cooling liquid.

[0034] As shown in Figure 2, in some embodiments, the battery pack 21 further includes at least one first flattened tube 41 provided on the shell 29 and positioned to surround an intake port 24 or exhaust port 25 of the shell 29. The first flattened tube 41 protrudes from the outer wall surface of the shell 29. The first flattened tube 41 may have at least one first slanted structure 42. In some embodiments, the battery pack 21 includes two first flattened tubes 41 provided symmetrically to each other, each surrounding an intake port 24 and an exhaust port 25.

[0035] Please refer to Figure 3. Figure 3 is a localized enlarged view of the energy storage cabinet 20 shown in Figure 1. As shown, a plurality of slots 56 are defined by two adjacent support columns 50 of the bracket 22, and the battery packs 21 are inserted into and removed from the slots 56. This figure shows a situation in which some of the battery packs 21 have been withdrawn from the slots. The support columns 50 may include slide rails 57 provided on the sides of the support columns 50 and arranged to slidably connect to the shells 29 of the battery packs 21.

[0036] As shown in Figure 3, the tubular member 55 of the support column 50 has at least one lateral opening 54, the lateral opening 54 communicating with the internal flow path of the tubular member 55, and each lateral opening 54 communicating with facing either an intake port 24 or an exhaust port 25 of one of the battery packs 21. In some embodiments, the support column 50 includes at least one second flattened tube 51 provided on the tubular member 55 and provided to surround one of the lateral openings 54 of the support column 50. The second flattened tube 51 protrudes from the outer wall surface of the support column 50 and is coupled to the first flattened tube 41 of the battery pack 21. The second flattened tube 51 may have a second slanted edge structure 52, the first slanted edge structure 42 and the second slanted edge structure 52 of the first flattened tube 41 having complementary shapes and contacting each other (see Figure 4). By providing the first hypotenuse structure 42 and the second hypotenuse structure 52, gaps are absorbed, and the battery pack 21 can be inserted into and removed from the slot 56 more smoothly.

[0037] Please refer to Figure 4. Figure 4 is a cross-sectional view of the energy storage cabinet 20 shown in Figure 1 along line segment 4-4'. As shown, the bracket 22 includes a first support column 50A, the first support column 50A includes the pipe member 55, and further includes a partition plate 60. The partition plate 60 is provided within the pipe member 55 and divides the internal flow path of the pipe member 55 into at least one cold air flow path 68 and a hot air flow path 69. The pipe member 55 has at least one first lateral opening 54A and at least one second lateral opening 54B, the first lateral opening 54A and the second lateral opening 54B located on opposite sides of the partition plate 60 and communicating with the hot air flow path 69 and the cold air flow path 68, respectively. The multiple battery packs 21 include at least one first battery pack 21A and at least one second battery pack 21B provided on opposite sides of the first support column 50A. The exhaust port 25 of the first battery pack 21A communicates with the hot air passage 69 via the first lateral opening 54A of the pipe member 55, and the intake port 24 of the second battery pack 21B communicates with the cold air passage 68 via the second lateral opening 54B of the pipe member 55.

[0038] The cold air passage 68 is connected to the cold air duct 58, thereby receiving cold air and supplying it to the second battery pack 21B. The warm air passage 69 can receive warm air discharged from the exhaust port 25 of the first battery pack 21A. The warm air passage 69 is connected to the warm air duct 59 so that the warm air is returned to the cooling device 28 via the warm air duct 59. Because a partition plate 60 is provided within the pipe member 55, the first support column 50A can guide both cold and warm air simultaneously, preventing the mixing of warm air discharged from the first battery pack 21A located in front and cold air used by the second battery pack 21B located behind. The above technical solution not only contributes to saving power in the cooling device 28 of the energy storage cabinet 20, but also makes the temperature of each battery pack 21 in the energy storage cabinet 20 relatively uniform.

[0039] In some embodiments, the partition plate 60 extends from the top to the bottom of the first column 50A. The energy storage cabinet 20 may include a plurality of first battery packs 21A and a plurality of second battery packs 21B stacked along the first column 50A, the exhaust port 25 of each first battery pack 21A communicating with a hot air passage 69 of the first column 50A, and the intake port 24 of each second battery pack 21B communicating with a cold air passage 68 of the first column 50A (for example, the tubular member 55 may have a plurality of first lateral openings 54A corresponding to the exhaust ports 25 of the plurality of first battery packs 21A, and a plurality of second lateral openings 54B corresponding to the intake ports 24 of the plurality of second battery packs 21B). In other words, the cold air passage 68 of the first support column 50A can distribute the cold air to multiple battery packs 21 that are stacked together, and the hot air passage 69 of the first support column 50A can merge the hot air discharged from the multiple battery packs 21 that are stacked together into the hot air duct 59 (see the first cold air path P1 and the second hot air path P2 shown in Figure 1).

[0040] As shown in Figure 4, the partition plate 60 has two sides 61, 62 that extend substantially vertically and are fixed to the inner wall of the pipe member 55. The partition plate 60 further has a central portion 63 located between the two sides 61, 62. The central portion 63 may be fixed to the inner wall of the pipe member 55 to prevent the partition plate 60 from swaying. The partition plate 60 is, for example, a metal plate. The partition plate 60 may be fixed to the pipe member 55 by welding, screwing or other suitable means. The partition plate 60 may have a stepped shape, specifically, the partition plate 60 may be bent in a stepped manner between the central portion 63 and the two sides 61, 62.

[0041] As shown in Figure 4, the inner wall of the pipe member 55 has opposing first wall portion W1 and second wall portion W2, the two sides 61 and 62 of the partition plate 60 may be fixed to the first wall portion W1, and the central portion 63 of the partition plate 60 is fixed to the second wall portion W2. In some embodiments, there are two cold air passages 68, located on both sides of the central portion 63 of the partition plate 60, and there are two air intake ports 24 of the second battery pack 21B, each communicating with the two cold air passages 68 via two second lateral openings 54B of the pipe member 55.

[0042] Please refer to Figure 5. Figure 5 is a cross-sectional view of the energy storage cabinet 20 shown in Figure 1 along line segment 5-5'. As shown, the support column 50 provided between the two battery packs 21 may include a partition plate 60, while the support column 50 not provided between the two battery packs 21 does not necessarily include a partition plate 60. For example, the leftmost support column 50 in the figure (closest to the cooling device 28) may be used to transport only cold air and therefore does not need to include a partition plate 60, and the rightmost support column 50 (farthest from the cooling device 28) may be used to transport only hot air and therefore does not need to include a partition plate 60.

[0043] Refer to Figure 6. Figure 6 is a cross-sectional view of the energy storage cabinet 20 shown in Figure 1 along line segment 6-6'. As shown, in some embodiments, the energy storage cabinet 20 further includes an insulating member 70 provided on top of the bracket 22. The insulating member 70 covers the cool air duct 58 and the battery pack 21 and protects the cool air duct 58 and the battery pack 21 from direct sunlight. The insulating member 70 may include either a liquid storage tank or an insulating lid, or it may include both a liquid storage tank and an insulating lid (for example, the liquid storage tank and the insulating lid may be stacked). The liquid storage tank may be used for pure water or other suitable liquid. The liquid in the liquid storage tank may be used for the fire-fighting function. The insulating lid may be made of an insulating material.

[0044] As shown in Figure 6, in some embodiments, the bracket 22 of the energy storage cabinet 20 further includes a main support column 71, which is located outside the battery pack 21 and separate from the battery pack 21 to form a ventilation space 73, contributing to heat dissipation of the battery pack 21.

[0045] Please refer to Figure 7. Figure 7 is a side view of an energy storage cabinet 20' according to another embodiment of the present disclosure. Unlike the previous embodiment, the cold air duct 58 of the energy storage cabinet 20' in this embodiment extends to pass below the battery pack 21, and the hot air duct 59 extends to pass above the battery pack 21. The cold air duct 58 is connected to the bottom end of at least some of the support columns 50, and the hot air duct 59 is connected to the top end of at least some of the support columns 50. The cold air outlet 27A and hot air inlet 27B of the cooling device 28 are located at the bottom and top of the cooling device 28, respectively, and are connected to the cold air duct 58 and the hot air duct 59, respectively.

[0046] As shown in Figure 7, the cold air generated by the cooling device 28 can flow along the first path P1, that is, the cold air first flows through the cold air duct 58, then flows upward along the internal flow path of the support column 50, and then flows into the internal space of the battery pack 21 from one side. The cold air is heated and converted into warm air as it passes through the battery pack 21, and the temperature of the warm air is higher than that of the cold air. The warm air can flow along the second path P2, that is, the warm air leaves the internal space of the battery pack 21 from the other side of the battery pack 21, then flows upward along the internal flow path of the support column 50, then flows into the warm air duct 59, and finally returns to the cooling device 28.

[0047] In summary, in the energy storage cabinet of this disclosure, the bracket columns are hollow and function as air passages, communicating with the internal space of the battery packs. As a result, the columns and battery packs together form a narrow, enclosed space, and the cooling system of the energy storage cabinet generates airflow circulating within this narrow, enclosed space, contributing to temperature regulation of the battery packs. Conversely, conventional energy storage cabinets generally use an air conditioning system to control the temperature of the entire internal space of the energy storage cabinet. This method consumes a relatively large amount of air conditioning power, and requires the installation of an air conditioning system with relatively high cooling capacity in the energy storage cabinet. Furthermore, a partition plate is provided within the column, dividing the internal air passage of the column into a cold air passage and a warm air passage. As a result, the column can guide both cold and warm air simultaneously while avoiding mixing of cold and warm air. The above technical solution not only contributes to energy saving for the cooling system but also makes the temperature of each battery pack in the energy storage cabinet relatively uniform.

[0048] While the embodiments described herein have been presented above, this disclosure is not limited to these embodiments, and those skilled in the art can make various modifications and alterations, provided they do not deviate from the spirit and scope of this disclosure. Accordingly, the scope of protection of this disclosure is based on the claims set forth below. [Explanation of Symbols]

[0049] 12 battery cells 13 Positive terminal 14 Negative terminal 15 Electrode terminal 20, 20' Energy Storage Cabinet 21 Battery Packs 21A Battery Pack 1 21B Second Battery Pack 22 brackets 23-layer assembly 24 Air intake 25 Exhaust vents 26 Connection device 27A Cold air outlet 27B Hot air intake 28 Cooling device 29 shells 30. First battery cell series connection element 40 Second battery cell series connection element 41 1st flat tube 42 First hypotenuse structure 50 pillars 50A First support column 51 2nd flat tube 52 Second hypotenuse structure 54 Side opening 54A 1st side opening 54B 2nd side opening 55 Pipe members 56 slots 57 Slide rails 58 Cool air duct 59 Hot air duct 60 partition plates 61, 62 side 63 Central part 68 Cold air flow path 69 Warm air flow path 70 Insulation material 71 Main support column 73 Ventilated Space D direction P1 First Route P2 Second Route W1 First Wall Section W2 Second Wall Section

Claims

1. A bracket including a first support column, which includes a pipe member having a first internal flow path, and a partition plate provided within the pipe member and dividing the first internal flow path into at least one first flow path and a second flow path, A plurality of battery packs, each including a shell provided on the bracket and having at least one first ventilation opening and a second ventilation opening, and a plurality of battery cells provided within the shell, and each including at least one first battery pack and at least one second battery pack provided on opposite sides of the first support column, A cooling device positioned to generate cold air, Equipped with, The second ventilation port of the at least one first battery pack communicates with the second flow path, and the at least one first ventilation port of the at least one second battery pack communicates with the at least one first flow path. An energy storage cabinet wherein the cold air flows into the at least one first vent of the at least one first battery pack, flows into the at least one first flow path of the first support column, and is heated and converted into warm air as it passes through the at least one first battery pack, and the warm air is discharged into the second flow path of the first support column via the second vent of the at least one first battery pack.

2. The energy storage cabinet according to claim 1, wherein the two sides and the central portion of the partition plate are fixed to the inner wall of the pipe member.

3. The energy storage cabinet according to claim 2, wherein the inner wall of the pipe member has opposing first and second wall portions, the two sides of the partition plate are fixed to the first wall portion, and the central portion of the partition plate is fixed to the second wall portion.

4. The energy storage cabinet according to claim 3, wherein the at least one first flow path is two in number and located on both sides of the central portion of the partition plate, and the at least one first ventilation opening of the at least one second battery pack is two in number and each communicates with the two first flow paths.

5. The energy storage cabinet according to claim 3, wherein the partition plate is folded in a stepped manner between the central portion and the two side edges.

6. The energy storage cabinet according to claim 1, wherein the first support column extends substantially vertically, and the at least one first battery pack and the at least one second battery pack are plurality and arranged to be stacked along the first support column, the second ventilation opening of each first battery pack communicates with the second flow path of the first support column, and the at least one first ventilation opening of each second battery pack communicates with the at least one first flow path of the first support column.

7. The energy storage cabinet according to claim 1, wherein the bracket further includes a second support column and a cold air duct, the at least one first battery pack is provided between the first support column and the second support column, the second support column has a second internal passage that communicates with the at least one first ventilation port of the at least one first battery pack, and the cold air duct is connected to the cold air outlet of the cooling device, the at least one first passage of the first support column and the second support column.

8. The energy storage cabinet according to claim 7, wherein the bracket further includes a third support column and a hot air duct, the at least one second battery pack is provided between the third support column and the first support column, the third support column has a third internal flow path communicating with the second ventilation port of the at least one second battery pack, and the hot air duct is connected to the hot air intake of the cooling device, the second flow path of the first support column and the third support column to recirculate the hot air to the cooling device.

9. The energy storage cabinet according to claim 8, wherein the plurality of battery packs are arranged in a plurality of stacks so as to be stacked vertically, one of the cold air duct and the hot air duct extends to pass above the plurality of battery packs, and the other of the cold air duct and the hot air duct extends to pass below the plurality of battery packs.

10. The energy storage cabinet according to claim 9, wherein the cooling device is provided on the side of the plurality of battery packs, and the cold air duct and the hot air duct extend substantially horizontally to the side of the plurality of battery packs and are connected to the cooling device.

11. The energy storage cabinet according to claim 1, wherein the at least one first battery pack further includes a first flattened tube provided to surround the second ventilation opening, the tube member of the first support column has a lateral opening communicating with the second flow path, the first support column further includes a second flattened tube provided to surround the lateral opening and coupled to the first flattened tube, and the first flattened tube and the second flattened tube each have a first slanted edge structure and a second slanted edge structure that are complementary in shape and in contact with each other.

12. The energy storage cabinet according to claim 1, wherein the at least one second battery pack further includes a first flattened tube provided to surround the at least one first ventilation opening, the tube member of the first support column has a lateral opening communicating with the at least one first flow path, the first support column further includes a second flattened tube provided to surround the lateral opening and coupled to the first flattened tube, and the first flattened tube and the second flattened tube each have a first slanted edge structure and a second slanted edge structure that are complementary in shape and in contact with each other.

13. The energy storage cabinet according to claim 1, further comprising an insulating member covering the top of the plurality of battery packs.

14. The energy storage cabinet according to claim 13, wherein the heat insulating member comprises at least one of a liquid storage tank and a heat insulating lid plate.

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