Air-cooled energy storage cabinet

Abstract

The application provides a forced air cooling energy storage cabinet, and relates to the technical field of energy storage cabinets. The forced air cooling energy storage cabinet comprises a cabinet body, a cabinet door and a heat dissipation mechanism. The cabinet body is internally provided with energy storage battery packs in multiple longitudinal rows and at intervals, and multiple gaps are formed. The cabinet door is rotatably connected to the cabinet body to open or close the cabinet body. The heat dissipation mechanism comprises an air conditioner, an intermediate air duct group, multiple branch air ducts and multiple longitudinal air ducts. The intermediate air duct group is connected to the air outlet of the air conditioner, and the multiple branch air ducts are all connected to the intermediate air duct group. The multiple longitudinal air ducts are respectively connected to the multiple branch air ducts, and the multiple longitudinal air ducts are respectively arranged in the multiple gaps. Each longitudinal air duct is provided with a heat dissipation air outlet facing the energy storage battery pack. The forced air cooling energy storage cabinet can improve the technical problem that the heat dissipation effect of the energy storage cabinet in the prior art is not obvious.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of energy storage cabinets, in particular to a wind-cooled energy storage cabinet. BACKGROUND

[0002] As a basic unit of energy storage equipment, an energy storage cabinet can generate a huge amount of electricity in one day. Relatively, the energy storage cabinet generates a large amount of heat during operation. In order to enable the energy storage cabinet to operate normally and efficiently, the heat generated by the energy storage cabinet needs to be dissipated to ensure that the temperature of the energy storage cabinet is maintained within a normal range.

[0003] However, in the prior art, the energy storage cabinet simply uses a heat exchanger or a cabinet air conditioner for heat dissipation. When the heat load is high, the heat exchanger or air conditioner has the defects of large volume, incomplete heat dissipation, uneven heat dissipation, difficult installation and arrangement, and high cost. Conventional air ducts or no air ducts can cause excessive loss of cold air, insufficient control and conduction of cold air, and poor heat dissipation effect. SUMMARY

[0004] The present application solves the technical problem of the poor heat dissipation effect of the wind-cooled energy storage cabinet in the prior art.

[0005] To solve the above problems, the present application provides a wind-cooled energy storage cabinet, comprising:

[0006] A cabinet body is provided with multiple longitudinal and spaced energy storage battery packs, and multiple gaps are formed.

[0007] A cabinet door is rotatably connected to the cabinet body to open or close the cabinet body; and

[0008] A heat dissipation mechanism comprises an air conditioner, an intermediate air duct group, multiple branch air ducts and multiple longitudinal air ducts. The intermediate air duct group is connected to the air outlet of the air conditioner, and multiple branch air ducts are connected to the intermediate air duct group. Multiple longitudinal air ducts are connected to multiple branch air ducts, and multiple longitudinal air ducts are arranged in multiple gaps. Any longitudinal air duct is provided with a heat dissipation air outlet facing the energy storage battery pack.

[0009] The wind-cooled energy storage cabinet provided by the present application has the following beneficial effects compared with the prior art:

[0010] In the air-cooled energy storage cabinet, the air conditioner guides the cold air flow from the middle air duct group to the plurality of branch air ducts to split the cold air flow through the plurality of branch air ducts, and guides the split cold air flow into the plurality of longitudinal air ducts. After the plurality of longitudinal air ducts receives the cold air flow, the cold air flow is guided into the gap. Since the gap is located between the plurality of longitudinal energy storage battery packs, it can fully contact the plurality of energy storage battery packs, so that the cold air flow can be quickly absorbed by the energy storage battery packs at each position to the inside for heat dissipation, thereby enabling the plurality of energy storage battery packs inside the cabinet to be cooled in a timely and effective manner, and providing effective cooling effect for the air-cooled energy storage cabinet. Therefore, the technical problem of the prior art that the heat dissipation effect of the energy storage cabinet is not obvious can be solved.

[0011] Optionally, the middle air duct group comprises a first air duct, a second air duct and a third air duct; the first air duct is connected to the air outlet of the air conditioner; the second air duct is connected to the first air duct; the third air duct is connected to the second air duct, and the plurality of branch air ducts are connected to the third air duct; the inner diameter of the second air duct gradually increases from one end close to the first air duct to one end close to the third air duct.

[0012] Since the inner diameter of the second air duct gradually increases, the air pressure of the air flow gradually decreases during the flow of the air flow in the second air duct, thereby facilitating the air flow through the middle air duct group to maintain a low temperature, and thereby providing efficient heat dissipation and cooling effect for the air-cooled energy storage cabinet.

[0013] Optionally, a plurality of spaced apart baffles are arranged in the third air duct to form a plurality of flow guide channels in the third air duct; and the plurality of branch air ducts are connected to the plurality of flow guide channels, respectively.

[0014] Optionally, the width of at least part of the flow guide channels gradually increases from one end close to the second air duct to one end close to the branch air duct.

[0015] Optionally, the width of the end of the flow guide channel close to the branch air duct is greater than the width of the branch air duct.

[0016] Optionally, the plurality of flow guide channels are arranged in a transverse direction; and the width of the two flow guide channels located on the outer side is less than the width of any other flow guide channel.

[0017] The width of the plurality of flow guide channels is adjusted by thermal simulation to obtain the above-mentioned arrangement of the flow guide channels, thereby changing the air flow amount of each flow guide channel, reducing the temperature difference between the plurality of longitudinal energy storage battery packs, making the plurality of longitudinal energy storage battery packs cool evenly, and improving the overall performance of the air-cooled energy storage cabinet.

[0018] Optionally, the first air duct is arranged on the cabinet door, the second air duct is fixedly arranged on the cabinet body, the first air duct can be connected with the second air duct in a detachable manner by moving relative to the cabinet body, and a sealing element is arranged between the first air duct and the second air duct.

[0019] By sealing the gap between the first air duct and the second air duct by the sealing element, the leakage of air flow between the first air duct and the second air duct can be prevented, so that the smooth and stable transmission of cold air flow in the first air duct and the second air duct is ensured, and the effective heat dissipation and cooling of the air-cooled energy storage cabinet are ensured.

[0020] Optionally, among the plurality of longitudinal air ducts, the longitudinal air ducts located on the outer side are attached to the inner wall of the cabinet body.

[0021] Based on this, the longitudinal air ducts are arranged on both sides of any longitudinal row of energy storage battery packs, so that the heat dissipation and cooling of any longitudinal row of energy storage battery packs can be comprehensively performed, and the cooling effect of the plurality of longitudinal rows of energy storage battery packs can be improved.

[0022] Optionally, the width of the branch air duct connected with the longitudinal air duct attached to the inner wall of the cabinet body is smaller than the width of the other branch air ducts.

[0023] Since the longitudinal air duct attached to the inner wall of the cabinet body only needs to provide heat dissipation and cooling effect to one longitudinal row of energy storage battery packs, the required amount of cold air flow is low, and therefore the width of the longitudinal air duct and the corresponding branch air duct can be reduced to avoid waste of cost.

[0024] Optionally, the air suction port of the air conditioner is connected to the internal space of the cabinet body, so that the air conditioner, the intermediate air duct group, the plurality of branch air ducts, the plurality of longitudinal air ducts, and the internal space of the cabinet body form an air flow circulation loop.

[0025] By forming an air flow circulation loop in the air-cooled energy storage cabinet, the air flow used for cooling the energy storage battery packs can form an internal circulation in the air-cooled energy storage cabinet, so that the air flow circulation loop is prevented from being affected by the outside, and the effective heat dissipation and cooling of the air-cooled energy storage cabinet are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 Structure diagram of the air-cooled energy storage cabinet provided in the embodiments of the present application Figure 1 ;

[0027] Figure 2 Structure diagram of the air-cooled energy storage cabinet provided in the embodiments of the present application Figure 2 ;

[0028] Figure 3 Structure diagram of the air-cooled energy storage cabinet provided in the embodiment of the present application Figure 3 ;

[0029] Figure 4 Structure diagram of the air-cooled energy storage cabinet provided in another embodiment of the present application

[0030] Figure 5 Structure diagram of the heat dissipation mechanism provided in the embodiment of the present application Figure 1 ;

[0031] Figure 6 Structure diagram of the heat dissipation mechanism provided in the embodiment of the present application Figure 2 ;

[0032] Figure 7 Structure diagram of the heat dissipation mechanism provided in the embodiment of the present application Figure 3 ;

[0033] Figure 8 Structure diagram of the air-cooled energy storage cabinet provided in the embodiment of the present application Figure 4 .

[0034] Explanation of reference signs:

[0035] 10-air-cooled energy storage cabinet; 100-cabinet body; 200-cabinet door; 300-heat dissipation mechanism; 310-air conditioner; 320-intermediate air duct group; 321-first air duct; 322-second air duct; 323-third air duct; 3231-dividing plate; 3232-flow guide channel; 330-branch air duct; 340-longitudinal air duct. DETAILED DESCRIPTION

[0036] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings.

[0037] Please refer to Figure 1 , the embodiment of the present application provides an air-cooled energy storage cabinet 10, which is internally provided with a plurality of energy storage battery packs, and can be used to deliver electric energy to the outside under the condition of operation. Of course, the air-cooled energy storage cabinet 10 will also generate a large amount of heat under the condition of operation. The air-cooled energy storage cabinet 10 provided in the embodiment of the present application can improve the technical problem that the heat dissipation effect of the air-cooled energy storage cabinet 10 in the prior art is not obvious.

[0038] In this embodiment, please refer to Figure 1 and Figure 2, the air-cooled energy storage cabinet 10 comprises a cabinet body 100, a cabinet door 200 and a heat dissipation mechanism 300. The cabinet body 100 is internally provided with multiple longitudinal and spaced energy storage battery packs (not shown in the figure), and multiple gaps (not shown in the figure) are formed. In other words, multiple energy storage battery packs are arranged in the internal space of the cabinet body 100, and the multiple energy storage battery packs are arranged to form multiple longitudinal columns, and gaps are formed between any one longitudinal column of energy storage battery packs. In the case of taking Figure 1 as an example, the multiple longitudinal energy storage battery packs are arranged along the left-right direction. The cabinet door 200 is rotatably connected to the cabinet body 100 to open or close the cabinet body 100. That is, the cabinet body 100 has an opening communicating with the internal space of the cabinet body 100, the cabinet door 200 is rotatably connected to the opening, and the cabinet door 200 can be rotated relative to the cabinet body 100 to open or close the opening. When the cabinet door 200 opens the opening, the energy storage battery packs are exposed from the opening; when the cabinet door 200 closes the opening, the cabinet door 200 closes the internal space of the cabinet body 100 and shields the energy storage battery packs.

[0039] In addition, please refer to Figure 1 , Figure 2 and Figure 5 , the heat dissipation mechanism 300 comprises an air conditioner 310, an intermediate air duct group 320, multiple branch air ducts 330 and multiple longitudinal air ducts 340. The intermediate air duct group 320 is connected to the air outlet of the air conditioner 310, and the multiple branch air ducts 330 are connected to the intermediate air duct group 320; the multiple longitudinal air ducts 340 are respectively connected to the multiple branch air ducts 330, and the multiple longitudinal air ducts 340 are respectively arranged in the multiple gaps; and each of the multiple longitudinal air ducts 340 is provided with a heat dissipation air outlet facing the energy storage battery pack.

[0040] As described above, in the air-cooled energy storage cabinet 10, the air conditioner 310 guides the cold air flow from the intermediate air duct group 320 to the multiple branch air ducts 330, so as to split the cold air flow through the multiple branch air ducts 330, and guide the split cold air flow into the multiple longitudinal air ducts 340. After the multiple longitudinal air ducts 340 receive the cold air flow, the cold air flow is guided into the gaps. Since the gaps are located between the multiple longitudinal energy storage battery packs, the cold air flow can be fully contacted with the multiple energy storage battery packs, so that the cold air flow can be quickly absorbed by the energy storage battery packs at each position to be internally cooled, thereby enabling the multiple energy storage battery packs in the internal space of the cabinet body 100 to be effectively cooled in time, and providing effective cooling effect for the air-cooled energy storage cabinet 10. Based on this, the technical problem that the heat dissipation effect of the air-cooled energy storage cabinet 10 in the prior art is not obvious can be solved.

[0041] It is worth noting that in the case of taking Figure 1For example, the width of the longitudinal air duct 340 is equivalent to the width of the gap in the front-rear direction of the cabinet 100, that is, the width of the longitudinal air duct 340 is equivalent to the width of the energy storage battery pack. Based on this, in the case of multiple heat dissipation air outlets on the longitudinal air duct 340, cold air flow can be provided to the side of the energy storage battery pack, and the suction port of the internal heat dissipation structure of the energy storage battery pack can quickly and effectively suck in cold air flow, thereby effectively completing the heat dissipation cooling of the energy storage battery pack.

[0042] In the present embodiment, as Figure 3 , two cabinet doors 200 can be provided on the cabinet 100, and the air conditioner 310 can be provided on one of the cabinet doors 200. Of course, in other embodiments, as Figure 4 , a single cabinet door 200 can be provided on the cabinet 100, and based on this, the air conditioner 310 can be provided at a middle position or a side position of the single cabinet door 200.

[0043] In the present embodiment, please refer to Figure 5 and Figure 6 , wherein Figure 6 the arrows in the figures indicate the flow direction of the air flow, and the middle air duct group 320 includes a first air duct 321, a second air duct 322, and a third air duct 323; the first air duct 321 is connected to the air outlet of the air conditioner 310; the second air duct 322 is connected to the first air duct 321; the third air duct 323 is connected to the second air duct 322, and multiple branch air ducts 330 are connected to the third air duct 323; the inner diameter of the second air duct 322 gradually increases from one end close to the first air duct 321 to one end close to the third air duct 323. In the case of the air conditioner 310 discharging cold air flow, the cold air flow flows through the first air duct 321, the second air duct 322, the third air duct 323, the multiple branch air ducts 330, and the multiple longitudinal air ducts 340 in sequence, and then is guided to the energy storage battery pack by the heat dissipation air outlets of the longitudinal air ducts 340.

[0044] Wherein, since the inner diameter of the second air duct 322 gradually increases, the air pressure of the air flow gradually decreases during the flow of the air flow in the second air duct 322, thereby facilitating the maintenance of low temperature of the air flow passing through the middle air duct group 320, and thereby providing efficient heat dissipation cooling effect to the air-cooled energy storage cabinet 10.

[0045] In addition, it is worth noting that, for example Figure 7 , the width of the first air duct 321 corresponding to the air outlet of the air conditioner 310 is small, in order to make the air flow smoothly divided into multiple branch air ducts 330, the inner diameter of the second air duct 322 is set to gradually increase, which can ensure smooth flow of the air flow and prevent the problem of reduced heat dissipation effect caused by air flow disorder.

[0046] Optionally, in some embodiments of the present application, the third air duct 323 is internally provided with a plurality of spaced partitions 3231 to form a plurality of flow guide channels 3232 in the third air duct 323; and the plurality of branch air ducts 330 are respectively connected to the plurality of flow guide channels 3232. When the airflow in the second air duct 322 is guided into the third air duct 323, the plurality of partitions 3231 divide the airflow to enter the plurality of flow guide channels 3232. Through the guidance of the plurality of flow guide channels 3232, the airflow can be guided into the plurality of branch air ducts 330 respectively to be introduced into the plurality of longitudinal air ducts 340. By forming the plurality of flow guide channels 3232 by means of the partitions 3231, the manufacturing difficulty of the third air duct 323 can be reduced, and the manufacturing cost of the third air duct 323 can be reduced.

[0047] It should be understood that in other embodiments of the present application, other ways can also be used to form the plurality of flow guide channels 3232. For example, a plurality of tubular structures are directly connected to form the third air duct 323. For another example, the third air duct is formed by integral molding.

[0048] In addition, the width of at least part of the flow guide channels 3232 gradually increases from one end close to the second air duct 322 to one end close to the branch air duct 330. "At least part" means that only part of the flow guide channels 3232 can have a gradually increasing width; or all of the flow guide channels 3232 can have a gradually increasing width.

[0049] It should be noted that in some embodiments, in the case of Figure 6 For example, in order to introduce the airflow into the plurality of longitudinal air ducts 340, the width of the third air duct 323 in the left-right direction is equivalent to the overall width of the cabinet 100, and the plurality of branch air ducts 330 corresponding to the plurality of longitudinal air ducts 340 are arranged at intervals from one end of the third air duct 323 to the other end of the third air duct 323. However, the width of the first air duct 321 in the left-right direction is equivalent to the width of the air outlet of the air conditioner 310 in the left-right direction, and the width of the first air duct 321 is smaller than the width of the third air duct 323. Based on this, in order to ensure that the plurality of flow guide channels 3232 in the third air duct 323 can respectively communicate with the plurality of branch air ducts 330, so that at least part of the flow guide channels 3232 are in an inclined state, and based on the arrangement of the partitions 3231, at least part of the flow guide channels 3232 form a state of gradually increasing width.

[0050] In the embodiment, the width of the flow guide channel 3232 near one end of the branch air duct 330 is greater than the width of the branch air duct 330. Since part of the flow guide channel 3232 is formed in an inclined state inside the third air duct 323, in the case of air flow being introduced from the second air duct 322 into the third air duct 323, the air flow is guided by the partition plate 3231. In order to ensure smooth flow of the air flow in the third air duct 323, one of the partition plates 3231 forming the flow guide channel 3232 is arranged close to one of the inner walls of the branch air duct 330, so that the plurality of flow guide channels 3232 gradually widen.

[0051] In the case of taking Figure 7 For example, the partition plate 3231 on the left side of the flow guide channel corresponds to one of the side walls of the branch air duct 330, so that the width of the flow guide channel 3232 gradually increases.

[0052] It should be understood that in other embodiments of the present application, the width of the flow guide channel 3232 can also be arranged in a state of uniform width.

[0053] In addition, in the embodiment, the plurality of flow guide channels 3232 are arranged in a transverse direction; the width of the two flow guide channels 3232 on the outer side is smaller than the width of any other flow guide channel 3232.

[0054] It is worth noting that the width of the plurality of flow guide channels 3232 is adjusted by thermal simulation to obtain the above-mentioned arrangement of the flow guide channel 3232, so as to change the air flow of each flow guide channel 3232, reduce the temperature difference between the plurality of longitudinal energy storage battery packs, balance the cooling of the plurality of longitudinal energy storage battery packs, and improve the overall performance of the air-cooled energy storage cabinet 10.

[0055] In the embodiment, since the air conditioner 310 is arranged on the cabinet door 200, in order to stably transmit the air flow to the plurality of longitudinal air ducts, the first air duct 321 is arranged on the cabinet door 200, and the second air duct 322 is fixedly arranged on the cabinet 100. The first air duct 321 can be connected to the second air duct 322 in a detachable manner by following the movement of the cabinet door 200 relative to the cabinet 100. A sealing member is arranged between the first air duct 321 and the second air duct 322, and the first air duct 321 is connected to the second air duct 322 through the sealing member. By sealing the gap between the first air duct 321 and the second air duct 322, the leakage of air flow in the gap between the first air duct 321 and the second air duct 322 is prevented, so as to ensure smooth and stable transmission of the cold air flow in the first air duct 321 and the second air duct 322, and further ensure effective heat dissipation and cooling of the air-cooled energy storage cabinet 10.

[0056] When the cabinet door 200 is opened, the cabinet door 200 drives the first air duct 321 away from the second air duct 322, so that the first air duct 321 and the second air duct 322 are separated; when the cabinet door 200 is closed, the cabinet door 200 drives the first air duct 321 to move towards the second air duct 322, so that the first air duct 321 and the second air duct 322 are connected. When the first air duct 321 and the second air duct 322 are connected, the sealing member fills the gap between the first air duct 321 and the second air duct 322 to seal the gap between the first air duct 321 and the second air duct 322, thereby improving the sealing effect between the first air duct 321 and the second air duct 322, preventing air leakage, and ensuring stable air transmission.

[0057] Optionally, among the plurality of longitudinal air ducts 340, the longitudinal air ducts 340 located on the outer side are attached to the inner wall of the cabinet body 100. In other words, in the case of the example, the two longitudinal rows of energy storage battery packs located on the left and right sides form a certain gap with the inner wall of the cabinet body 100, and the gap also forms the above-mentioned gap, that is, the two longitudinal air ducts extend into the two gaps. Based on this, the longitudinal air ducts 340 are arranged on both sides of any one longitudinal row of energy storage battery packs, and the cooling effect of the plurality of longitudinal rows of energy storage battery packs can be improved. Figure 1

[0058] Optionally, the width of the branch air duct 330 connected to the longitudinal air duct 340 attached to the inner wall of the cabinet body 100 is smaller than the width of the other branch air ducts 330.

[0059] It should be noted that since the longitudinal air duct 340 attached to the inner wall of the cabinet body 100 only needs to provide cooling to one longitudinal row of energy storage battery packs, the demand for cold air flow is relatively low, and therefore the width of the longitudinal air duct 340 and the corresponding branch air duct 330 can be reduced to avoid waste of cost.

[0060] Of course, in other embodiments of the present application, the width of the branch air duct 330 connected to the longitudinal air duct 340 attached to the inner wall of the cabinet body 100 can be equal to the width of the other branch air ducts 330.

[0061] In addition, please refer to Figure 8 , wherein Figure 8 ​The arrow in the figure indicates the flow direction of the air flow. In this embodiment, the air inlet of the air conditioner 310 is connected to the internal space of the cabinet 100, so that the air conditioner 310, the intermediate air duct group 320, the plurality of branch air ducts 330, the plurality of longitudinal air ducts 340, and the internal space of the cabinet 100 form an air flow circulation loop. By forming an air flow circulation loop in the air-cooled energy storage cabinet 10, the air flow used to cool the energy storage battery pack forms an internal circulation in the air-cooled energy storage cabinet 10, which can prevent the air flow circulation loop from being affected by the outside world and ensure effective heat dissipation and cooling of the air-cooled energy storage cabinet 10.

[0062] That is, the air flow cooled by the air conditioner 310 is introduced into the first air duct 321, the first air duct 321 introduces the air flow into the second air duct 322, and the second air duct 322 introduces the air flow into the third passage, which is then split by the plurality of flow guide passages 3232 in the third passage, and then the air flow is split into the plurality of branch air ducts 330, which are introduced into the plurality of longitudinal air ducts, respectively. The plurality of longitudinal air ducts guide the cold air flow to the energy storage battery pack, which absorbs the cold air flow to complete heat dissipation and cooling, and then the energy storage battery pack discharges the hot air flow into the internal space of the cabinet 100. At this time, the air inlet of the air conditioner 310 again absorbs the hot air flow and provides cooling to the hot air flow, which is again introduced into the first air duct 321, thereby forming an internal circulation of the air flow.

[0063] It is worth noting that in order to ensure the stable operation of the air conditioner 310, the air conditioner 310 also has a heat dissipation structure. The air inlet and outlet of the heat dissipation structure of the air conditioner 310 are arranged on the outer side of the air conditioner 310 and located on the outer side of the cabinet door 200 to form an external circulation, so as to prevent the heat dissipation and cooling of the air conditioner 310 from affecting the internal air flow circulation of the air-cooled energy storage cabinet 10 and ensure the stability of the internal circulation of the air-cooled energy storage cabinet 10.

[0064] In summary, in the air-cooled energy storage cabinet 10 provided in the embodiments of the present application, the air conditioner 310 guides the cold air flow from the middle air duct group 320 to the plurality of branch air ducts 330, so as to distribute the cold air flow through the plurality of branch air ducts 330, and guide the distributed cold air flow into the plurality of longitudinal air ducts 340. After receiving the cold air flow, the plurality of longitudinal air ducts 340 guide the cold air flow into the gaps between the plurality of longitudinal energy storage battery packs, so as to fully contact the plurality of energy storage battery packs, so that the cold air flow is quickly absorbed by the energy storage battery packs at each position to the inside for heat dissipation, thereby enabling the plurality of energy storage battery packs in the cabinet body 100 to be effectively cooled in time, and providing effective cooling effect for the air-cooled energy storage cabinet 10. Based on this, the technical problem that the heat dissipation effect of the air-cooled energy storage cabinet 10 in the prior art is not obvious can be solved. In addition, the width of the plurality of guide channels 3232 is adjusted by means of thermal simulation, so as to obtain the above-mentioned setting mode of the guide channels 3232, thereby changing the air flow of each guide channel 3232, reducing the temperature difference between the plurality of longitudinal energy storage battery packs, making the temperature of the plurality of longitudinal energy storage battery packs balanced, and improving the overall performance of the air-cooled energy storage cabinet 10. Moreover, the cooling air flow of the air-cooled energy storage cabinet 10 forms an internal circulation of the air-cooled energy storage cabinet 10, which can prevent the air flow circulation loop from being affected by the outside, and ensure effective heat dissipation and cooling of the air-cooled energy storage cabinet 10.

[0065] Although the present application is disclosed as above, the present application is not limited thereto. Any person skilled in the art, without departing from the spirit and scope of the present application, can make various changes and modifications, therefore the protection scope of the present application should be limited by the scope defined in the claims.

Claims

1. An air-cooled energy storage cabinet, characterized in that, The utility model relates to a cabinet for energy storage battery, which comprises: a cabinet body (100) in which a plurality of energy storage battery packs are arranged in multiple columns and are spaced apart to form a plurality of gaps; a cabinet door (200) rotatably connected to the cabinet body (100) to open or close the cabinet body (100); and a heat dissipation mechanism (300) comprising an air conditioner (310), an intermediate air duct group (320), a plurality of branch air ducts (330), and a plurality of longitudinal air ducts (340); the intermediate air duct group (320) is connected to an air outlet of the air conditioner (310), and the plurality of branch air ducts (330) are connected to the intermediate air duct group (320); the plurality of longitudinal air ducts (340) are connected to the plurality of branch air ducts (330) respectively, and the plurality of longitudinal air ducts (340) are arranged in the plurality of gaps respectively; each of the longitudinal air ducts (340) is provided with a heat dissipation air outlet facing the energy storage battery pack; the intermediate air duct group (320) comprises a first air duct (321), a second air duct (322), and a third air duct (323); the first air duct (321) is connected to the air outlet of the air conditioner (310); the second air duct (322) is connected to the first air duct (321); the third air duct (323) is connected to the second air duct (322), and the plurality of branch air ducts (330) are connected to the third air duct (323); an inner diameter of the second air duct (322) gradually increases from one end close to the first air duct (321) to one end close to the third air duct (323).

2. The air-cooled energy storage cabinet of claim 1, wherein, The third air duct (323) is provided with a plurality of spaced-apart partitions (3231) to form a plurality of flow guide channels (3232) in the third air duct (323); and the plurality of branch air ducts (330) are connected to the plurality of flow guide channels (3232) respectively.

3. The air-cooled energy storage cabinet of claim 2, wherein, Widths of at least part of the flow guide channels (3232) gradually increase from one end close to the second air duct (322) to one end close to the branch air duct (330).

4. The air-cooled energy storage cabinet of claim 2, wherein, The width of one end of the flow guide channel (3232) close to the branch air duct (330) is greater than the width of the branch air duct (330).

5. The air-cooled energy storage cabinet of claim 2, wherein, The plurality of flow guide channels (3232) are arranged in a transverse direction; the widths of two flow guide channels (3232) located on the outer side are less than the width of any other flow guide channel (3232).

6. The air-cooled energy storage cabinet of claim 1, wherein, The first air duct (321) is arranged on the cabinet door (200), the second air duct (322) is fixedly arranged on the cabinet body (100), the first air duct (321) can move relative to the cabinet body (100) to be connected to the second air duct (322) in a detachable manner, a sealing member is arranged between the first air duct (321) and the second air duct (322), and the first air duct (321) is connected to the second air duct (322) through the sealing member.

7. The air-cooled energy storage cabinet of any of claims 1-6, wherein, Among the plurality of longitudinal air ducts (340), the longitudinal air ducts (340) located on the outer side are attached to the inner wall of the cabinet body (100).

8. The air-cooled energy storage cabinet of claim 7, wherein, The width of the branch air duct (330) connected with the longitudinal air duct (340) attached to the inner wall of the cabinet (100) is smaller than the width of other branch air ducts (330).

9. The air-cooled energy storage cabinet of any of claims 1-6, wherein, The air suction port of the air conditioner (310) accesses the internal space of the cabinet (100), so that the air conditioner (310), the intermediate air duct group (320), a plurality of branch air ducts (330), a plurality of longitudinal air ducts (340) and the internal space of the cabinet (100) form an air circulation loop.

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