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 technology]

[0002] Power storage devices typically contain multiple batteries, and in order to maintain the temperature of the batteries within a suitable operating temperature range, the power storage device must include a temperature control mechanism. Summary of the Invention [Problem to be solved by the invention]

[0003] In view of this, an objective of the present disclosure is to propose an improved energy storage cabinet, which can uniformly dissipate heat from the battery packs therein and effectively control the temperature of the energy storage cabinet. [Means for solving the problem]

[0004] According to some embodiments of the present disclosure, an energy storage cabinet includes: a bracket including a first support including a tube member having a first internal flow path and a partition plate disposed within the tube member and dividing the first internal flow path into at least one first flow path and a second flow path; a shell disposed on the bracket, the shell having at least one first ventilation port and a second ventilation port, and a plurality of battery cells disposed within the shell, the plurality of battery packs including at least one first battery pack and at least one second battery pack disposed on opposite sides of the first support; and a cooling device arranged to generate cool air, the second ventilation port of the first battery pack communicating with the second flow path and the first ventilation port of the second battery pack communicating with the first flow path, the cool air flowing into the first ventilation port of the first battery pack, flowing into the first flow path of the first support, and being heated and converted into hot air as it passes through the first battery pack, the hot air being discharged via the second ventilation port of the first battery pack to the second flow path of the first support.

[0005] In an embodiment of the present disclosure, the two sides and the center portion of the partition plate are fixed to the inner wall of the tube member.

[0006] In an embodiment of the present disclosure, the inner wall of the pipe member has opposing first and second wall portions, and 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 an embodiment of the present disclosure, the first flow paths are two in number and located on both sides of the central portion of the partition plate, and the first ventilation holes of the second battery pack are two in number and respectively communicate with the two first flow paths.

[0008] In an embodiment of the present disclosure, the partition plate is bent in a stepped shape between the central portion and the two side edges.

[0009] In an embodiment of the present disclosure, the first pillar extends substantially vertically, and a plurality of first and second battery packs are stacked along the first pillar, with the second vent of each first battery pack communicating with the second flow path of the first pillar, and the first vent of each second battery pack communicating with the first flow path of the first pillar.

[0010] In an embodiment of the present disclosure, the bracket further includes a second pillar and a cold air duct, the first battery pack is disposed between the first pillar and the second pillar, the second pillar has a second internal flow passage communicating with the first ventilation port of the first battery pack, and the cold air duct is connected to the cold air outlet of the cooling device, the first flow passage of the first pillar, and the second pillar.

[0011] In an embodiment of the present disclosure, the bracket further includes a third pillar and a hot air duct, the second battery pack is disposed between the third pillar and the first pillar, the third pillar has a third internal flow passage communicating with the second ventilation port of the second battery pack, and the hot air duct is connected to the hot air intake port of the cooling device, the second flow passage of the first pillar, and the third pillar, thereby returning hot air to the cooling device.

[0012] In an embodiment of the present disclosure, a plurality of battery packs are stacked along the vertical direction and arranged into a plurality of stacks, with one of the cold air duct and the hot air duct extending to pass above the battery packs and the other of the cold air duct and the hot air duct extending to pass below the battery packs.

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

[0014] In an embodiment of the present disclosure, the first battery pack further includes a first flat tube arranged to surround the second ventilation hole, the pipe member of the first support has a side opening communicating with the second flow path, the first support further includes a second flat tube arranged to surround the side opening and coupled to the first flat tube, and the first flat tube and the second flat tube respectively have first and second hypotenuse structures that have complementary outer shapes and abut each other.

[0015] In an embodiment of the present disclosure, the second battery pack further includes a first flat tube arranged to surround the first ventilation hole, the pipe member of the first support has a side opening communicating with the first flow path, the first support further includes a second flat tube arranged to surround the side opening and coupled to the first flat tube, and the first flat tube and the second flat tube respectively have first and second hypotenuse structures that have complementary outer shapes and abut each other.

[0016] In an embodiment of the present disclosure, the energy storage cabinet further includes an insulating member covering the upper part of the battery pack.

[0017] In an embodiment of the present disclosure, the insulating member includes at least one of a liquid storage tank and an insulating cover plate. Effect of the Invention

[0018] To sum up, in the energy storage cabinet of the present disclosure, the support of the bracket is a hollow structure, and the hollow support can function as an air passage and communicate with the internal space of the battery pack, so that the support and the battery pack together form a narrow sealed space, and the cooling device of the energy storage cabinet generates an air flow circulating in the narrow sealed space, thereby contributing to regulating the temperature of the battery pack. On the contrary, the conventional energy storage cabinet generally uses an air conditioning system to control the temperature of the entire internal space of the energy storage cabinet, which consumes a relatively large amount of air conditioning power and requires the energy storage cabinet to be assembled with an air conditioning system with a relatively high cooling capacity. In addition, a partition plate is provided in the support, which divides the internal flow path of the support into a cold air flow path and a hot air flow path, so that the support can simultaneously guide the cold air and the hot air and prevent the cold air and the hot air from mixing. The above technical solution not only contributes to the power saving of the cooling device, but also makes the temperature of each battery pack in the energy storage cabinet relatively uniform. [Brief description of the drawings]

[0019] To make the above and other objects, features, advantages and embodiments of the present disclosure more clear and understandable, reference is made to the accompanying drawings as follows. [Figure 1] FIG. 1 illustrates a side view of an energy storage cabinet according to one embodiment of the present disclosure. [Diagram 2] FIG. 2 is a perspective view showing one battery pack in the energy storage cabinet shown in FIG. 1. [Diagram 3] FIG. 2 is a localized enlarged view showing a slot of the energy storage cabinet shown in FIG. 1. [Figure 4] FIG. 4 is a cross-sectional view of the energy storage cabinet shown in FIG. 1 taken along line 4-4′. [Diagram 5] FIG. 5 is a cross-sectional view of the energy storage cabinet shown in FIG. 1 taken along line 5-5′. [Figure 6] FIG. 6 is a cross-sectional view of the energy storage cabinet shown in FIG. 1 taken along line 6-6′. [Figure 7]FIG. 13 is a side view illustrating an energy storage cabinet according to another embodiment of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] The present disclosure can be more fully described by referring to the attached drawings and various embodiments described below. Each element in the drawings is not drawn to scale and is merely provided to explain the present disclosure. Many practical details described below are for the purpose of fully understanding the present disclosure, and those skilled in the art should understand that the present disclosure can be implemented without one or more practical details. Therefore, these details should not be taken 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 mounted on the bracket 22. The bracket 22 is used to mount the battery packs 21. The bracket 22 may have one or more slots for accommodating one battery pack 21 each. The battery packs 21 are removably mounted in the slots of the bracket 22, in other words, the battery packs 21 may be inserted into the slots and may be removed from the slots as needed (e.g., when repair or maintenance is required). 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 as to slide into and out of the slots. In some embodiments, the energy storage cabinet 20 may further include a plurality of door panels (not shown) covering the sides of the bracket 22 to isolate the battery packs 21 from the outside environment as needed.

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

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

[0024] 1 , the energy storage cabinet 20 further includes at least one cooling device 28 mounted on the bracket 22 and located on the other side of the energy storage cabinet 20. The cooling device 28 can generate cool air, which may be guided to flow through the battery pack 21 to help cool the battery pack 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 pack 21.

[0025] 1, the battery packs 21 are arranged in a plurality of stacks, and the bracket 22 of the energy storage cabinet 20 includes a plurality of support posts 50 extending substantially vertically, and each support post 50 may be provided between the battery packs 21 of two adjacent stacks, or may be provided outside the battery packs 21. In other words, the support posts 50 and the battery packs 21 of the plurality of stacks may be arranged alternately. In some embodiments, each battery pack 21 is provided between two support posts 50.

[0026] As shown in FIG. 1 , the support 50 includes a tube member 55 having a hollow structure and an internal flow path. The internal flow path of the tube member 55 may communicate with the internal space of the battery pack 21 (for example, the side wall of the tube member 55 and the housing of the battery pack 21 may be provided with openings at corresponding positions). 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 the top end of at least some of the support 50, and the hot air duct 59 is connected to the bottom end of at least some of the support 50. The internal flow path of the support 50 communicates with the cold air duct 58 and the hot air duct 59. Cooling device 28 is provided on the side of battery pack 21, and cold air duct 58 and hot air duct 59 extend substantially horizontally to the side of battery pack 21 and are connected to cooling device 28. Cooling device 28 has cold air outlet 27A and hot air inlet 27B, and in this embodiment, cold air outlet 27A and hot air inlet 27B are located at the top and bottom of cooling device 28, respectively, and are connected to cold air duct 58 and hot air duct 59, respectively.

[0027] With the above arrangement, the battery pack 21, the support 50, the cold air duct 58, the hot air duct 59, and the cooling device 28 of the energy storage cabinet 20 of the present disclosure together form a narrow sealed space, and the cooling device 28 generates an airflow circulating in the narrow sealed space, contributing to regulating the temperature of the battery pack 21. 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, which consumes a relatively large amount of air conditioning power and requires the energy storage cabinet to be equipped with an air conditioning system with a relatively high cooling capacity.

[0028] As shown in Fig. 1, the cold air generated by the cooling device 28 can flow along a first path P1, i.e., the cold air first flows through the cold air duct 58, then flows downward along the internal flow path of the support 50, and then flows into the internal space of the battery pack 21 from one side of the battery pack 21. The cold air is heated and converted into hot air when passing through the battery pack 21, and the temperature of the hot air is higher than that of the cold air. The hot air can flow along a second path P2, i.e., the hot 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 50, then flows into the hot air duct 59, and finally returns to the cooling device 28.

[0029] 1, only some of the flow paths of the cold air and the hot air are shown in a schematic manner, and this is for the purpose of keeping the lines of the drawing simple and easy to read, and it is not meant that the cold air and the hot air flow only through these several flow paths. In reality, the cold air may be guided to flow into each battery pack 21, and any hot air discharged from each battery pack 21 may be guided to return to the cooling device 28.

[0030] Please refer to Fig. 2. Fig. 2 is a perspective view showing one battery pack 21 in the energy storage cabinet 20 shown in Fig. 1. In Fig. 2, the top cover of the battery pack 21 is removed to facilitate explanation of the elements therein. The battery pack 21 includes a shell 29 and a plurality of battery cells 12 provided in 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 the direction D.

[0031] As shown in FIG. 2 , each battery cell 12 includes two electrode terminals 15, including one positive terminal 13 and one negative terminal 14, 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, arranged in the shell 29 and arranged to connect the battery cells 12 in series. Specifically, the first battery cell series-connection element 30 is electrically connected to the positive terminal 13 and the 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 arranged in the shell 29 and electrically connected to the electrode terminals 15 of the battery cells 12 in two adjacent rows. The first battery cell series-connection element 30 and the second battery cell series-connection element 40 may be made of a conductive material such as copper or a copper alloy.

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

[0033] In some embodiments, the energy storage cabinet 20 has a fire-fighting mechanism to address the situation where a battery cell 12 fails, causing the temperature to become uncontrolled, and thus catching fire or burning. If the energy storage cabinet 20 detects that the battery pack 21 has overheated, the energy storage cabinet 20 is arranged to inject cooling liquid (e.g., pure water) into the shell 29 of the battery pack 21. In these embodiments, at least one of the inlet 24 and the outlet 25 may function as an outlet for excess cooling liquid.

[0034] 2, in some embodiments, the battery pack 21 further includes at least one first flat tube 41 provided in the shell 29 and arranged so as to surround the inlet 24 or the exhaust 25 of the shell 29. The first flat tube 41 protrudes from the outer wall surface of the shell 29. The first flat tube 41 may have at least one first oblique side structure 42. In some embodiments, the battery pack 21 includes two first flat tubes 41 provided symmetrically to each other and arranged so as to surround the inlet 24 and the exhaust 25, respectively.

[0035] Please refer to Fig. 3. Fig. 3 is a local enlarged view of the energy storage cabinet 20 shown in Fig. 1. As shown in the figure, a plurality of slots 56 are defined by two adjacent support posts 50 of the bracket 22, and the battery packs 21 are provided so as to be insertable and removable into the slots 56. This figure shows a state in which some of the battery packs 21 have been removed from the slots. The support posts 50 may include slide rails 57 provided on the sides of the support posts 50 and arranged to be slidably connected to the shells 29 of the battery packs 21.

[0036] As shown in FIG. 3, the pipe member 55 of the support 50 has at least one side opening 54, and the side opening 54 communicates with the internal flow path of the pipe member 55, and each side opening 54 faces and communicates with the intake port 24 or the exhaust port 25 of one of the battery packs 21. In some embodiments, the support 50 includes at least one second flat tube 51 provided on the pipe member 55 and provided so as to surround one side opening 54 of the support 50. The second flat tube 51 protrudes from the outer wall surface of the support 50 and is coupled to the first flat tube 41 of the battery pack 21. The second flat tube 51 may have a second oblique side structure 52, and the first oblique side structure 42 and the second oblique side structure 52 of the first flat tube 41 have complementary outer shapes and abut each other (see FIG. 4). The provision of the first oblique side structure 42 and the second oblique side structure 52 has the effect of absorbing gaps, and also enables the battery pack 21 to be inserted into and removed from the slot 56 more smoothly.

[0037] Please refer to FIG. 4. FIG. 4 is a cross-sectional view of the energy storage cabinet 20 shown in FIG. 1 taken along line 4-4'. As shown in the figure, the bracket 22 includes a first support 50A, which includes the above-mentioned pipe member 55 and further includes a partition plate 60. The partition plate 60 is provided in 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 side opening 54A and at least one second side opening 54B, which are located on opposite sides of the partition plate 60 and communicate 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 opposing sides of the first support 50A, and the exhaust port 25 of the first battery pack 21A is connected to the hot air flow path 69 via the first side opening 54A of the pipe member 55, and the intake port 24 of the second battery pack 21B is connected to the cold air flow path 68 via the second side opening 54B of the pipe member 55.

[0038] The cold air flow path 68 is connected to the cold air duct 58 to receive the cold air and send the cold air to the second battery pack 21B. The hot air flow path 69 can receive the hot air discharged from the exhaust port 25 of the first battery pack 21A. The hot air flow path 69 is connected to the hot air duct 59 so that the hot air returns to the cooling device 28 via the hot air duct 59. Since the first support 50A is provided on the partition plate 60 in the pipe member 55, the first support 50A can guide the cold air and the hot air at the same time and avoid mixing the hot air discharged from the first battery pack 21A located in front and the cold air used by the second battery pack 21B located in the rear. The above technical solution not only contributes to the power saving of 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 end to the bottom end of the first support 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 support 50A, with the exhaust port 25 of each of the first battery packs 21A communicating with the hot air flow path 69 of the first support 50A and the intake port 24 of each of the second battery packs 21B communicating with the cold air flow path 68 of the first support 50A (e.g., the pipe member 55 may have a plurality of first side openings 54A corresponding to the exhaust ports 25 of the plurality of first battery packs 21A, respectively, and may have a plurality of second side openings 54B corresponding to the intake ports 24 of the plurality of second battery packs 21B, respectively). In other words, the cold air flow path 68 of the first pillar 50A can divert cold air to the multiple battery packs 21 that are stacked, and the hot air flow path 69 of the first pillar 50A can merge the hot air discharged from the multiple battery packs 21 that are stacked 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 FIG. 4, the partition plate 60 has two sides 61, 62 that extend substantially vertically and are fixed to the inner wall of the tube 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 tube member 55 to prevent the partition plate 60 from swinging. The partition plate 60 is, for example, a metal plate. The partition plate 60 may be fixed to the tube member 55 by welding, screwing, or other suitable means. The partition plate 60 may have a stepped profile, specifically, the partition plate 60 may be bent in a stepped shape between the central portion 63 and the two sides 61, 62.

[0041] 4, the inner wall of the pipe member 55 has a first wall portion W1 and a second wall portion W2 facing each other, and the two side edges 61, 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, the number of cool air channels 68 is two and they are located on both sides of the central portion 63 of the partition plate 60, and the number of air intakes 24 of the second battery pack 21B is two and they communicate with the two cool air channels 68 via the two second side openings 54B of the pipe member 55, respectively.

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

[0043] Please refer to FIG. 6. FIG. 6 is a cross-sectional view of the energy storage cabinet 20 shown in FIG. 1 taken along line 6-6'. As shown in the figure, in some embodiments, the energy storage cabinet 20 further includes a heat insulating member 70 provided on the top of the bracket 22. The heat insulating member 70 covers the cold air duct 58 and the battery pack 21 from above, and protects the cold air duct 58 and the battery pack 21 from direct irradiation of sunlight. The heat insulating member 70 may include one of a liquid storage tank and a heat insulating cover plate, or may include both a liquid storage tank and a heat insulating cover plate (for example, the liquid storage tank and the heat insulating cover plate 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 firefighting function. The heat insulating cover plate may be made of a heat insulating material.

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

[0045] Please refer to FIG. 7. FIG. 7 is a side view of an energy storage cabinet 20' according to another embodiment of the present disclosure. Different from the above embodiment, the cold air duct 58 of the energy storage cabinet 20' of this embodiment extends to pass under the battery pack 21, and the hot air duct 59 extends to pass over the battery pack 21. The cold air duct 58 is connected to the bottom end of at least some of the columns 50, and the hot air duct 59 is connected to the top end of at least some of the columns 50. The cold air outlet 27A and the 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] 7, the cold air generated by the cooling device 28 can flow along a first path P1, i.e., the cold air first flows through the cold air duct 58, then flows upward along the internal flow path of the support 50, and then flows into the internal space of the battery pack 21 from one side of the battery pack 21. The cold air is heated and converted into hot air when passing through the battery pack 21, and the temperature of the hot air is higher than that of the cold air. The hot air can flow along a second path P2, i.e., the hot 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 50, then flows into the hot air duct 59, and finally returns to the cooling device 28.

[0047] To sum up, in the energy storage cabinet of the present disclosure, the support of the bracket is a hollow structure, and the hollow support can function as an air passage and communicate with the internal space of the battery pack, so that the support and the battery pack together form a narrow sealed space, and the cooling device of the energy storage cabinet generates an air flow circulating in the narrow sealed space, contributing to the temperature regulation of the battery pack. On the contrary, the conventional energy storage cabinet generally uses an air conditioning system to control the temperature of the entire internal space of the energy storage cabinet, which consumes a relatively large amount of air conditioning power and requires the energy storage cabinet to be assembled with an air conditioning system with a relatively high cooling capacity. In addition, a partition plate is provided in the support, which divides the internal flow path of the support into a cold air flow path and a hot air flow path, so that the support can simultaneously guide the cold air and the hot air and prevent the cold air and the hot air from mixing. The above technical solution not only contributes to the power saving of the cooling device, but also makes the temperature of each battery pack in the energy storage cabinet relatively uniform.

[0048] Although the present disclosure has been disclosed as above by the embodiments, it is not limited to these embodiments, and those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present disclosure. Therefore, the scope of protection of the present disclosure is based on the contents specified in the following claims. [Explanation of symbols]

[0049] 12 Battery Cells 13 Positive terminal 14 Negative terminal 15 Electrode terminal 20, 20' Energy Storage Cabinet 21 Battery Pack 21A 1st battery pack 21B Second battery pack 22 Bracket 23 Layer Assembly 24 Air Intake 25 Exhaust port 26 Connection Device 27A Cold air outlet 27B Hot air intake 28 Cooling device 29 Shell 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 1st Pillar 51 2nd flat tube 52 Second oblique structure 54 Side opening 54A 1st side opening 54B 2nd side opening 55 Pipe members 56 Slots 57 Slide rail 58 Cold air duct 59 Warm air duct 60 Partition 61, 62 side 63 Central part 68 Cold air flow path 69 Warm air flow path 70 Insulation materials 71 Main Pillar 73 Ventilation space D direction P1 1st pathway P2 2nd pathway W1 First wall W2 Second wall

Claims

1. a bracket including a first support including a pipe member having a first internal flow passage and a partition plate provided within the pipe member and dividing the first internal flow passage into at least one first flow passage and a second flow passage; a shell provided on the bracket, the shell having at least one first ventilation hole and a second ventilation hole, and a plurality of battery cells provided within the shell; and 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 pillar; a cooling device arranged 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 cool air flows into the at least one first ventilation port of the at least one first battery pack, flows into the at least one first flow path of the first pillar, and is heated and converted into hot air as it passes through the at least one first battery pack, and the hot air is discharged to the second flow path of the first pillar via the second ventilation port of the at least one first battery pack.

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

3. 3. The energy storage cabinet of 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. 4. The energy storage cabinet of 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 hole of the at least one second battery pack is two in number and communicates with the two first flow paths, respectively.

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

6. 2. The energy storage cabinet of claim 1, wherein the first support extends substantially vertically, the at least one first battery pack and the at least one second battery pack are multiple and stacked along the first support, the second ventilation port of each of the first battery packs communicates with the second flow path of the first support, and the at least one first ventilation port of each of the second battery packs communicates with the at least one first flow path of the first support.

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

8. 8. The energy storage cabinet of claim 7, wherein the bracket further includes a third support and a hot air duct, the at least one second battery pack is provided between the third support and the first support, the third support 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 a hot air intake port of the cooling device, the second flow path of the first support, and the third support, thereby returning the hot air to the cooling device.

9. 9. The energy storage cabinet of claim 8, wherein the plurality of battery packs are stacked along a vertical direction and arranged in a plurality of stacks, one of the cold air duct and the hot air duct extending to pass above the plurality of battery packs, and the other of the cold air duct and the hot air duct extending to pass below the plurality of battery packs.

10. 10. The energy storage cabinet of claim 9, wherein the cooling device is provided on a 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. 2. The energy storage cabinet of claim 1, wherein the at least one first battery pack further includes a first flat tube arranged to surround the second ventilation hole, the pipe member of the first support has a side opening communicating with the second flow path, the first support further includes a second flat tube arranged to surround the side opening and coupled to the first flat tube, and the first flat tube and the second flat tube respectively have a first hypotenuse structure and a second hypotenuse structure that have complementary outer shapes and abut each other.

12. 2. The energy storage cabinet of claim 1, wherein the at least one second battery pack further includes a first flat tube arranged to surround the at least one first ventilation hole, the pipe member of the first support has a side opening communicating with the at least one first flow path, the first support further includes a second flat tube arranged to surround the side opening and coupled to the first flat tube, and the first flat tube and the second flat tube respectively have a first hypotenuse structure and a second hypotenuse structure that have complementary outer shapes and abut each other.

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

14. 14. The energy storage cabinet of claim 13, wherein the insulating member includes at least one of a liquid storage tank and an insulating lid plate.

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