Air duct and energy storage container

Abstract

The utility model relates to an air duct and an energy storage container, the air duct is used between a temperature adjusting device and a battery rack, the air duct comprises a box body, the box body comprises a plurality of flow distribution spaces, and the volumes of at least two flow distribution spaces are different; each flow distribution space is provided with an air outlet and an air inlet, the air outlet is used for being communicated with the battery rack, and the air inlet is used for being communicated with the temperature adjusting device; at least one flow distribution space is provided with one air guide plate, the air guide plate comprises a windward side, and the windward side is arranged towards the air inlet so as to guide airflow entering from the air inlet. Due to the fact that airflow is guided by the air guide plate in the flow distribution space, the airflow flows on a correct road, vortex can be avoided to a certain extent, the airflow flows more smoothly, wind power loss generated by the vortex is reduced to the maximum extent, and noise is avoided to the maximum extent.

Description

Technical Field

[0001] The present application relates to the field of air ducts, and in particular to an air duct and an energy storage container. Background Art

[0002] The use scenarios of energy storage containers cover commercial supporting, power generation and frequency regulation supporting, outdoor use supporting, etc. The altitude can reach 2000~4000m, and the temperature range can reach -30℃~55℃. Under the general cooling solution with liquid cooling, it cannot meet the current harsh environmental requirements, so air flow temperature control is generally used to adapt to environmental conditions.

[0003] When the ambient temperature is high, the battery will generate heat during charging and discharging. If the heat dissipation does not meet the requirements or is not timely, it may cause thermal runaway of the battery pack, which will then generate various flammable gases and a large amount of smoke, and then create the risk of combustion and explosion. Similarly, when the ambient temperature is low, the battery pack cannot fully meet the charging and discharging requirements in a cold environment. Therefore, it is necessary to accurately control the temperature regulation of the energy storage container. However, the space inside the traditional energy storage container is cramped, and the air duct used is prone to generate vortices to affect the movement of the airflow, and cannot guide the airflow well. Utility Model Content

[0004] The purpose of this application is to provide an air duct and an energy storage container.

[0005] According to a first aspect of an embodiment of the present application, there is provided an air duct, the air duct being used between a temperature regulating device and a battery rack, the air duct comprising:

[0006] A box body, the box body comprising a plurality of flow distribution spaces, at least two of which have different volumes; each of the flow distribution spaces is provided with an air outlet and an air inlet, the air outlet is used to communicate with the battery rack, and the air inlet is used to communicate with the temperature regulating device;

[0007] An air guide plate is provided in at least one flow distribution space, and the air guide plate includes a windward surface, and the windward surface is arranged toward the air inlet to guide the airflow entering from the air inlet.

[0008] In some embodiments, the air duct further includes a connector, one end of which is connected to the temperature control device, and the other end of which is connected to the air inlet;

[0009] At least three ventilation units are arranged at the connection end between the connecting piece and the temperature regulating device, and the ventilation unit includes a side unit and a middle unit. The side units are arranged on both sides of the middle unit. The side units and the middle unit are respectively connected to the distribution space through the air inlet. The side units are arranged on both sides of the middle unit, and the cross-sectional area of ​​the side units is larger than that of the middle unit.

[0010] In some embodiments, the number of the flow distribution spaces is at least three, and the flow distribution spaces include side spaces and middle spaces, the side spaces are located on both sides of the middle space, the side spaces are connected to the side units, and the middle spaces are connected to the middle units;

[0011] The ratio of the volume of the middle space to the volume of the side space is less than or equal to 1 and greater than or equal to 0.5.

[0012] In some embodiments, the number of the air outlets includes multiple, the multiple air outlets are respectively connected to the distribution space, the multiple air outlets are staggered along the length direction of the box body, and are located on the surface of the box body close to the battery rack.

[0013] In some embodiments, the air duct further includes an air outlet guide plate, the air outlet includes a near unit and a far unit, the near unit is closer to the air inlet than the far unit is to the air inlet, and the air outlet guide plate is disposed in the near unit;

[0014] The air outlet guide plate comprises a guide surface, and the guide surface is arranged at an angle with a horizontal plane.

[0015] In some embodiments, the air outlet is extended from the box body toward the battery rack, and the extension length of the air outlet is greater than or equal to 10 cm and less than or equal to 50 cm.

[0016] In some embodiments, the air outlet includes a middle air outlet unit and an edge air outlet unit, and a cross-sectional area of ​​the middle air outlet unit is greater than a cross-sectional area of ​​the edge air outlet unit.

[0017] In some embodiments, the flow distribution space is composed of at least one guide wall, and at least a portion of the guide wall is arranged from the air inlet to the air outlet.

[0018] According to a second aspect of an embodiment of the present application, an energy storage container is provided, the energy storage container comprising a temperature control device, a battery rack, and an air duct as described in the above embodiment.

[0019] In some embodiments, the battery rack includes a plurality of storage columns, the storage columns include storage spaces sequentially arranged in a vertical direction, the battery rack includes two side columns and a middle column, and the two side columns are respectively located on the sides of the middle column;

[0020] The storage space includes a plurality of battery spaces and a host space, the host space is arranged in the side row, and the heat dissipation of the host space is smaller than the heat dissipation of the battery space;

[0021] The distribution space includes two side spaces, and the two side spaces are respectively connected to the two side columns through the air outlets, and the volume of the side space corresponding to the side column with the host space is larger than the volume of the side space corresponding to the side column without the host space.

[0022] In some embodiments, adjacent storage columns are arranged at intervals, and the air outlets are correspondingly arranged in the gaps between adjacent storage columns.

[0023] The beneficial technical effects brought about by the technical solution provided by the embodiment of the present application are:

[0024] The air duct of the present application is used between the temperature regulating device and the battery rack, and the air duct includes a box body, the box body includes multiple distribution spaces, and the volumes of at least two distribution spaces are different; each distribution space is provided with an air outlet and an air inlet, the air outlet is used to communicate with the battery rack, and the air inlet is used to communicate with the temperature regulating device. The present application is provided with an air guide plate in the distribution space, and the air guide plate includes a windward surface, and the windward surface is arranged toward the air inlet to guide the airflow entering from the air inlet. Based on the above arrangement, the airflow is generated from the temperature regulating device, and then enters the distribution space from the air inlet, and then is guided by the air guide plate in the distribution space, and finally enters the battery rack from the air outlet to adjust the temperature of the battery rack. Since the airflow is guided by the air guide plate in the distribution space, the airflow flows on the correct path, so the vortex can be avoided to a certain extent, thereby making the flow of the airflow smoother, minimizing the wind loss caused by the vortex and minimizing the occurrence of noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 It is a schematic diagram of the structure of an energy storage container according to an embodiment of the present application.

[0027] Figure 2 This is a structural schematic diagram of an energy storage container with part of its structure removed according to an embodiment of the present application.

[0028] Figure 3 It is a schematic diagram showing the coordination of an air duct and a battery rack according to an embodiment of the present application.

[0029] Figure 4 FIG. 1 is another schematic diagram of the coordination between the air duct and the battery rack according to an embodiment of the present application.

[0030] Figure 5 It is a schematic diagram of the structure of an air duct according to an embodiment of the present application.

[0031] Figure 6 FIG. 4 is another schematic diagram of the structure of an air duct according to an embodiment of the present application.

[0032] Figure 7 It is a schematic diagram of the internal structure of the back side of the air duct according to an embodiment of the present application.

[0033] Figure 8 The figure is a schematic top view of the internal structure of the back side of the air duct according to an embodiment of the present application.

[0034] Fig. 9 The figure is a schematic diagram of the internal structure of the air duct from another perspective on the back side according to an embodiment of the present application.

[0035] Description of reference numerals:

[0036] Energy storage container 10 Temperature control device 100 Battery rack 200

[0037] Storage column 210 Side column 211 Middle column 212

[0038] Storage space 220 Battery space 221 Host space 222

[0039] Air duct 300 Box 310 Distribution space 311

[0040] Side space 311A ​​Middle space 311B Air outlet 312

[0041] Near unit 312A Far unit 312B Middle outlet unit 312C

[0042] Edge air outlet unit 312D Air inlet 313 Guide wall 314

[0043] Air guide plate 320 Connecting piece 330 Ventilation unit 331

[0044] Side unit 331A Middle unit 331B Air outlet guide plate 340

[0045] Guide surface 341 DETAILED DESCRIPTION

[0046] Here, exemplary embodiments will be described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are only examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims. The words "one" or "one" and the like used in the specification and claims of this application do not indicate a quantitative limitation, but indicate that there is at least one. "Multiple" means two or more. "Including" or "comprising" and the like mean that the elements or objects appearing in front of "including" or "comprising" cover the elements or objects listed after "including" or "comprising" and their equivalents, and do not exclude other elements or objects. "Connected" or "connected" and the like are not limited to direct connection, but may also include indirect connection. "On" and / or "below" and the like are only for the convenience of description, and are not limited to a position or a spatial orientation. As used in the specification and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0047] refer to Figure 1 and Figure 2 As shown, the main function of the energy storage container 10 is to store electrical energy so that it can be released when needed to supply the power grid or equipment. It can help balance the load of the power grid, adjust the stability of power supply, cope with peak power consumption periods, provide backup power, and support the stable access of renewable energy. The use scenarios of the energy storage container 10 cover commercial supporting, power generation and frequency regulation supporting, outdoor use supporting, etc. The layout altitude can reach 2000~4000m, and the temperature range can reach -30℃~55℃. Under the general solution of using liquid as a temperature adjustment measure, it cannot meet the current harsh environmental requirements, so airflow temperature adjustment is generally used to adapt to environmental conditions.

[0048] The energy storage container 10 includes a temperature control device 100, a battery rack 200 and an air duct 300. Figure 3 As shown, the battery rack 200 includes a plurality of storage columns 210, and the storage columns 210 include storage spaces 220 arranged in sequence along the vertical direction. The storage spaces 220 are used to store battery packs and transformer hosts. The airflow generated by the temperature regulating device 100 enters the battery rack 200 through the air duct 300 to adjust the temperature of the battery pack and the transformer host. Figure 7As shown, the air duct 300 has a distribution space 311 , and the distribution space 311 is provided with an air outlet 312 and an air inlet 313 . The air outlet 312 is used to communicate with the battery rack 200 , and the air inlet 313 is used to communicate with the temperature control device 100 .

[0049] Since the distribution space 311 is a closed environment, the airflow entering the distribution space 311 from the air inlet 313 can easily collide directly with the wall of the distribution space 311, thereby forming a vortex, which in turn causes energy loss and pressure loss of the airflow or increased noise in the air duct 300.

[0050] This application proposes an air duct 300, referring to Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7 , Figure 8 as well as Fig. 9 As shown, the air duct 300 is used between the temperature regulating device 100 and the battery rack 200, and the air duct 300 includes: a box body 310 and an air guide plate 320. The box body 310 includes a plurality of distribution spaces 311, and the volumes of at least two distribution spaces 311 are different; at least one distribution space 311 is provided with an air guide plate 320, and the air guide plate 320 includes a windward surface, and the windward surface is arranged toward the air inlet 313 to guide the airflow entering from the air inlet 313.

[0051] In this embodiment, it should be noted that the temperature regulating device 100 here can be an air conditioner or other device that can cool or heat, and this application does not limit it. When the battery rack 200 is in a state of too high temperature, the temperature regulating device 100 can output a relatively low temperature to the battery rack 200 so that the battery rack 200 is at a suitable temperature; when the battery rack 200 is in a state of too low temperature, the temperature regulating device 100 can output a relatively high temperature to the battery rack 200 so that the battery rack 200 is at a suitable temperature. The windward surface is arranged toward the air inlet 313, that is, there is an angle between the windward surface and the line connecting the air inlet 313 to the air outlet 312, thereby affecting the direction of the airflow.

[0052] Based on the above configuration, the airflow is generated from the temperature regulating device 100, then enters the distribution space 311 through the air inlet 313, is then guided by the air guide plate 320 in the distribution space 311, and finally enters the battery rack 200 through the air outlet 312 to adjust the temperature of the battery rack 200. Since the airflow is guided by the air guide plate 320 in the distribution space 311, the airflow flows on the correct path, so eddies can be avoided to a certain extent, thereby making the airflow flow smoother, minimizing the wind loss caused by eddies and minimizing the occurrence of noise.

[0053] The present embodiment does not limit the number of air guide plates 320, and the number of air guide plates 320 may be one or more. It is foreseeable that increasing the number of air guide plates 320 may increase the overall airflow guiding capability of the air guide plates 320, but increasing the number of air guide plates 320 may increase the overall cost of the air duct 300. Figure 7 As shown, the present embodiment sets the number of air guide plates 320 to two, which can achieve a good ability to guide airflow on the one hand, and can also make cost control appropriate on the other hand. In addition, the present embodiment does not limit the shape of the air guide plate 320. Preferably, the shape of the air guide plate 320 is arc-shaped or straight-line-shaped. When the shape of the air guide plate 320 is arc-shaped, the air guide plate 320 can be designed in an arc shape to match the original flow direction of the airflow, so as to guide the airflow to change direction more smoothly, thereby reducing the wind resistance generated by the air guide plate 320 itself. When the shape of the air guide plate 320 is straight-line, the air guide plate 320 is convenient for manufacturing and subsequent installation, thereby reducing manufacturing costs and assembly time.

[0054] In this embodiment, reference Figure 6 , Figure 7 , Figure 8 as well as Fig. 9 As shown, the air duct 300 also includes a connector 330, one end of the connector 330 is connected to the temperature control device 100, and the other end of the connector 330 is connected to the air inlet 313; at least three ventilation units 331 are arranged at the connection end of the connector 330 and the temperature control device 100, and the ventilation unit 331 includes a side unit 331A and a middle unit 331B, the side unit 331A is arranged on both sides of the middle unit 331B, the side unit 331A and the middle unit 331B are respectively connected to the distribution space 311 through the air inlet 313, the side unit 331A is arranged on both sides of the middle unit 331B, and the cross-sectional area of ​​the side unit 331A is larger than that of the middle unit 331B.

[0055] Since the airflow generated by the temperature control device 100 is relatively concentrated in the middle and relatively dispersed on both sides, in this embodiment, the cross-sectional area of ​​the side unit 331A is set to be larger than that of the middle unit 331B, so that the amount of airflow entering the side unit 331A and the middle unit 331B can be relatively balanced, so that the amount of airflow entering each distribution space 311 through the air inlet 313 is roughly equal.

[0056] In this embodiment, reference Figure 7 , Figure 8 , Fig. 9As shown, the number of distribution spaces 311 is at least three, and the distribution space 311 includes a side space 311A ​​and a middle space 311B. The side space 311A ​​is located on both sides of the middle space 311B, the side space 311A ​​is connected to the side unit 331A, and the middle space 311B is connected to the middle unit 331B; the volume ratio of the middle space 311B to the side space 311A ​​is less than or equal to 1, and greater than or equal to 0.5. It should be noted that the volume here is the space where the airflow can flow. When the volume ratio of the middle space 311B to the side space 311A ​​is less than or equal to 1, and greater than or equal to 0.5, the airflow out of the middle space 311B and the side space 311A ​​can be adjusted to achieve better airflow distribution. For example, the volume ratio of the middle space 311B to the side space 311A ​​can be 0.5, 0.6, 0.7, 0.8, 0.9, 1.

[0057] In one embodiment, reference Figure 6 , Figure 8 as well as Fig. 9 As shown, the number of the air outlets 312 includes a plurality of air outlets 312, and the plurality of air outlets 312 are respectively connected to the distribution space 311, and the plurality of air outlets 312 are staggered along the length direction of the box body 310, and are located on the surface of the box body 310 close to the battery rack 200. It should be noted that the staggered arrangement of the plurality of air outlets 312 along the length direction of the box body 310 means that the plurality of air outlets 312 are arranged along the length direction of the box body 310, and the extension directions of the plurality of air outlets 312 in the width direction of the box body 310 are inconsistent, refer to Figure 6 As shown, Figure 6 The four air outlets 312 are arranged in sequence along the length direction of the box body 310 at intervals, but the four air outlets 312 extend inconsistently in the width direction of the box body 310, forming a staggered arrangement shape.

[0058] Based on the above arrangement, since the air outlets 312 are staggered, the airflow can enter and cover the box 310 more comprehensively, thereby making the temperature adjustment of the box more accurate and comprehensive, thereby making the battery packs on all battery racks 200 within a suitable temperature range.

[0059] In one embodiment, reference Figure 8 and Fig. 9 As shown, the air duct 300 also includes an air outlet guide plate 340, and the air outlet 312 includes a near unit 312A and a far unit 312B, the near unit 312A is closer to the air inlet 313 than the far unit 312B is closer to the air inlet 313, and the air outlet guide plate 340 is arranged in the near unit 312A; the air outlet guide plate 340 includes a guiding surface 341, and the guiding surface 341 is arranged at an angle to the horizontal plane.

[0060] refer to Figure 8 and Fig. 9 As shown, since the near unit 312A in the air outlet 312 is closer to the air inlet 313, when the airflow enters the distribution space 311, it flows out directly from the near unit 312A near the air inlet 313, so that the airflow entering the battery rack 200 from the near unit 312A is uneven. In this embodiment, an air outlet guide plate 340 is provided, and the guide surface 341 of the air outlet guide plate 340 is set at an angle to the horizontal plane, so that part of the airflow directly entering the near unit 312A near the air inlet 313 can be guided to the near unit 312A away from the air inlet 313, so that the airflow near the unit 312A is more evenly dispersed, and the battery pack can obtain a better temperature control effect.

[0061] In this embodiment, reference Figure 5 and Figure 6 The air outlet 312 extends from the box body 310 to the battery rack 200, and the extension length of the air outlet 312 is greater than or equal to 10 cm and less than or equal to 50 cm. For example, the extension length of the air outlet 312 can be 10 cm, 15 cm, 20 cm, 25 cm, 30 cm, 35 cm, 40 cm, 45 cm, or 50 cm.

[0062] Based on the above configuration, since the air outlet 312 extends from the box 310 to the battery rack 200, the distance between the air outlet 312 and the battery rack 200 can be shortened, thereby reducing the air flow loss between the air outlet 312 and the battery rack 200, further improving the temperature control efficiency. In addition, the air outlet 312 extending from the box 310 to the battery rack 200 can also help locate the air duct 300 and the battery rack 200, making it easier to find the corresponding position when the two are installed together.

[0063] In this embodiment, reference Fig. 9 As shown, the air outlet 312 includes a middle air outlet unit 312C and an edge air outlet unit 312D, and the cross-sectional area of ​​the middle air outlet unit 312C is greater than the cross-sectional area of ​​the edge air outlet unit 312D.

[0064] refer to Figure 3 and Figure 4 It can be seen that the edge air outlet unit 312D matches the edge area of ​​the storage column 210 and can only affect the temperature of one side of the storage column 210, but the middle air outlet unit 312C matches the middle area of ​​the storage column 210 and can affect the temperatures of two storage columns 210. Therefore, in this embodiment, the cross-sectional area of ​​the middle air outlet unit 312C is set to be larger than the cross-sectional area of ​​the edge air outlet unit 312D, which can make the heat dissipation of the battery rack 200 more balanced.

[0065] In this embodiment, reference Figure 7 , Figure 8 as well as Fig. 9 As shown, the flow distribution space 311 is composed of at least one guide wall 314 , and at least a portion of the guide wall 314 is arranged from the air inlet 313 to the air outlet 312 .

[0066] After the airflow enters the distribution space 311 from the air inlet 313, it is guided to the air outlet 312 by the guide wall 314 pointing from the air inlet 313 to the air outlet 312, so that the collision of the airflow in the distribution space 311 can be reduced, thereby making the airflow flow more stable. In addition, the guide wall 314 can also play the role of partially supporting the inside of the air duct 300, so that the air duct 300 can withstand greater external impacts without deforming the air duct 300.

[0067] In one embodiment, reference Figure 3 and Figure 4 As shown, the battery rack 200 includes two side columns 211 and a middle column 212, and the two side columns 211 are respectively located on the sides of the middle column 212; the storage space 220 includes multiple battery spaces 221 and a host space 222, and the host space 222 is arranged in the side column 211, and the heat dissipation of the host space 222 is less than the heat dissipation of the battery space 221; the distribution space 311 includes two side spaces 311A, and the two side spaces 311A ​​are respectively connected to the two side columns 211 through the air outlet 312, and the volume of the side space 311A ​​corresponding to the side column 211 with the host space 222 is greater than the volume of the side space 311A ​​corresponding to the side column 211 without the host space 222. It should be noted that the adjacent storage columns 210 are arranged at intervals, and the gaps between the adjacent storage columns 210 are correspondingly provided with air outlets 312. The gap allows the airflow from the air duct 300 to enter the battery rack 200 and propagate along the gap to achieve a better heat dissipation effect.

[0068] Based on the above configuration, the airflow obtained by the side row 211 having the host space 222 can be smaller than that of the side row 211 not having the host space 222, so that the temperature of the two side rows 211 can be better controlled.

[0069] In addition, the present application does not only make the above limitation. The present application can also adjust the relative size between the distribution space 311 to match the host space 222 and the battery space 221 according to the different positions of the host space 222 and the battery space 221 of the battery rack 200. For example, if the host space 222 is set in the middle column 212, the distribution space 311 corresponding to the middle column 212 is relatively reduced to achieve more accurate adjustment of the temperature of the battery rack 200, so as to make the battery pack and the transformer host at a suitable working temperature. If the battery rack 200 also has other spaces, the size of the corresponding distribution space 311 can be adjusted according to the heat generated by the space. For example, if the miscellaneous space emits less heat, the space of the corresponding distribution space 311 can be reduced to achieve precise regulation.

Claims

1. An air duct, characterized in that: The air duct is used between the temperature regulating device and the battery rack, and the air duct includes: A box body, the box body comprising a plurality of flow distribution spaces, at least two of which have different volumes; each of the flow distribution spaces is provided with an air outlet and an air inlet, the air outlet is used to communicate with the battery rack, and the air inlet is used to communicate with the temperature regulating device; An air guide plate is provided in at least one flow distribution space, and the air guide plate includes a windward surface, and the windward surface is arranged toward the air inlet to guide the airflow entering from the air inlet.

2. The air duct according to claim 1, characterized in that: The air duct further includes a connecting piece, one end of which is connected to the temperature regulating device, and the other end of which is connected to the air inlet; At least three ventilation units are arranged at the connection end between the connecting piece and the temperature regulating device, and the ventilation unit includes a side unit and a middle unit. The side units are arranged on both sides of the middle unit. The side units and the middle unit are respectively connected to the distribution space through the air inlet. The side units are arranged on both sides of the middle unit, and the cross-sectional area of ​​the side units is larger than that of the middle unit.

3. The air duct according to claim 2, characterized in that: The number of the flow distribution spaces is at least three, and the flow distribution spaces include side spaces and middle spaces, the side spaces are located on both sides of the middle space, the side spaces are connected to the side units, and the middle spaces are connected to the middle units; The ratio of the volume of the middle space to the volume of the side space is less than or equal to 1 and greater than or equal to 0.

5.

4. The air duct according to claim 1, characterized in that: The number of the air outlets includes multiple, and the multiple air outlets are respectively connected to the distribution space. The multiple air outlets are staggered along the length direction of the box body and are located on the surface of the box body close to the battery rack.

5. The air duct according to claim 4, characterized in that: The air duct further includes an air outlet guide plate, the air outlet includes a near unit and a far unit, the near unit is closer to the air inlet than the far unit is to the air inlet, and the air outlet guide plate is arranged in the near unit; The air outlet guide plate comprises a guide surface, and the guide surface is arranged at an angle with a horizontal plane.

6. The air duct according to claim 4, characterized in that: The air outlet is extended from the box body toward the battery rack, and the extension length of the air outlet is greater than or equal to 10 cm and less than or equal to 50 cm.

7. The air duct according to claim 4, characterized in that: The air outlet includes a middle air outlet unit and an edge air outlet unit, and a cross-sectional area of ​​the middle air outlet unit is larger than a cross-sectional area of ​​the edge air outlet unit.

8. The air duct according to claim 1, characterized in that: The flow distribution space is formed by at least one guide wall, and at least a portion of the guide wall is arranged from the air inlet to the air outlet.

9. An energy storage container, characterized in that: The energy storage container includes a temperature control device, a battery rack, and an air duct as described in any one of claims 1-8.

10. The energy storage container according to claim 9, characterized in that: The battery rack includes a plurality of storage columns, each storage column includes storage spaces sequentially arranged in a vertical direction, and the battery rack includes two side columns and a middle column, wherein the two side columns are respectively located on the sides of the middle column; The storage space includes a plurality of battery spaces and a host space, the host space is arranged in the side row, and the heat dissipation of the host space is smaller than the heat dissipation of the battery space; The distribution space includes two side spaces, and the two side spaces are respectively connected to the two side columns through the air outlets, and the volume of the side space corresponding to the side column with the host space is larger than the volume of the side space corresponding to the side column without the host space.

11. The energy storage container according to claim 10, characterized in that: Adjacent storage columns are arranged at intervals, and the air outlets are correspondingly arranged in the gaps between adjacent storage columns.

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