Energy storage battery cluster

Abstract

The utility model relates to the technical field of batteries, and provides an energy storage battery cluster which comprises a battery rack, battery boxes, cluster top air ducts, side air ducts and inter-cluster air ducts, the battery rack is used for bearing a plurality of battery boxes; the cluster top air duct is arranged at the top of the battery rack, the side air ducts are arranged on the two sides of the battery rack in the length direction of the battery rack, and the multiple inter-cluster air ducts are arranged in the battery rack at intervals; the cluster top air duct is respectively communicated with the side air duct and the plurality of inter-cluster air ducts, the cluster top air duct is provided with a cooling air inlet, the side air duct and the plurality of inter-cluster air ducts are provided with a plurality of air outlets, and the plurality of air outlets are arranged opposite to the air inlets of the plurality of battery boxes. According to the energy storage battery cluster, all the battery boxes in the height range of the battery rack can be cooled, so that uniform heat dissipation of all the battery boxes is realized, the occupied space of the battery rack is not increased, and uniform heat dissipation of the energy storage battery cluster under compact layout is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to an energy storage battery cluster. Background Art

[0002] Existing large-scale energy storage systems often use standard-sized containers as battery compartments. At the same time, for the purpose of facilitating installation and maintenance, battery racks are installed in the containers to accommodate the entire cluster of battery boxes. The battery cluster contains many batteries, often hundreds or even thousands of batteries, resulting in a large total heat generation of the system. If the battery compartment is in a sealed space, heat easily accumulates in the battery compartment. Therefore, the battery rack not only supports the battery box, but also guides the circulation of cooling air to achieve uniform heat dissipation for the battery cluster.

[0003] The common solution for existing battery rack air ducts is to install the duct horizontally above the battery rack with the opening facing downward. The air conditioning cooling air passes through the battery surface from top to bottom through the duct or from back to front through the rear duct. However, in the former, the batteries above the battery rack are closer to the air outlet of the duct and the batteries above will block most of the cold air. The cooling air flow at the bottom of the battery cluster is small, resulting in poor heat dissipation effect. The latter requires adding several vertical air ducts on the rear side of the battery rack, which increases the space occupied by the battery rack and is not conducive to the compact layout of the battery compartment. Utility Model Content

[0004] The utility model provides an energy storage battery cluster, which is used to solve the problem in the prior art that it is difficult to uniformly dissipate heat from battery boxes in the cluster without increasing the space occupied by the battery rack.

[0005] In order to solve the above technical problems, the utility model is achieved as follows:

[0006] The utility model provides an energy storage battery cluster, comprising: a battery rack, a battery box, a cluster top air duct, a side air duct and an inter-cluster air duct;

[0007] The battery rack is used to carry multiple battery boxes;

[0008] The cluster top air duct is provided at the top of the battery rack along the length direction of the battery rack, the side air duct is provided on both sides of the battery rack, and a plurality of the inter-cluster air ducts are provided, and the plurality of inter-cluster air ducts are spaced apart and arranged in the battery rack;

[0009] The cluster top air duct is respectively connected to the side air duct and the multiple inter-cluster air ducts, the cluster top air duct has a cooling air inlet, the side air duct and the multiple inter-cluster air ducts have multiple air outlets, and the multiple air outlets are arranged opposite to the air inlets of the multiple battery boxes.

[0010] According to an energy storage battery cluster provided by the utility model, the battery rack includes columns, beams and support brackets;

[0011] There are a plurality of the columns, beams and support brackets, wherein the columns are vertically spaced apart, and the beams are arranged at the top and bottom of the columns;

[0012] A plurality of support brackets are arranged on the columns at intervals, and the support brackets extend along the width direction of the battery rack to support the battery box;

[0013] The support bracket has a hollow opening, the opening of the support bracket is respectively arranged opposite to the air outlet of at least part of the side air duct or the inter-cluster air duct, and the side of the support bracket away from the opening is provided with an arc-shaped air outlet structure.

[0014] According to an energy storage battery cluster provided by the present invention, the support frame includes a first layer frame and a second layer frame, the first layer frame is mounted on the outermost column, and the second layer frame is mounted on the inner column.

[0015] According to an energy storage battery cluster provided by the utility model, the cluster top air duct includes an inlet air duct, a main air duct and a sealing plate;

[0016] The main air duct is provided at the top of the battery rack, one side of the inlet air duct is provided with a cooling air inlet, the other side of the inlet air duct is connected to one end of the main air duct, and the other end of the main air duct is blocked by the sealing plate;

[0017] The bottom of the main air duct is provided with strip-shaped openings, and the strip-shaped openings are respectively arranged opposite to the air inlet parts of the side air ducts and the inter-cluster air ducts.

[0018] According to an energy storage battery cluster provided by the utility model, the main air duct is provided with a plurality of wind shields;

[0019] Along the flow direction of the cooling air, a plurality of wind shields are respectively arranged on the front sides of the inter-cluster air duct and the side air duct, and the wind shields are arranged in an arc shape.

[0020] According to an energy storage battery cluster provided by the present invention, along the flow direction of the cooling air, the arc surface radii of the plurality of wind shields increase sequentially.

[0021] According to an energy storage battery cluster provided by the utility model, the wind shield is arranged tangent to the edges of the air inlet parts of the inter-cluster air duct and the side air duct.

[0022] According to an energy storage battery cluster provided by the utility model, the inlet air duct and the main air duct are arranged in a one-to-one correspondence;

[0023] Alternatively, one inlet air duct is arranged corresponding to the two main air ducts, one side of the inlet air duct has the cooling air inlet, and the other side of the inlet air duct has two air outlets respectively arranged corresponding to the two main air ducts.

[0024] According to an energy storage battery cluster provided by the utility model, the side air duct has a first air outlet, a second air outlet and a first air inlet;

[0025] The first air inlet is provided at the top of the side air duct, and the first air inlet is communicated with the cluster top air duct;

[0026] The first air outlet and the second air outlet are arranged on the inner side of the side air duct away from the two sides of the battery rack. The first air outlet and multiple second air outlets constitute a side air duct air outlet unit, and the multiple side air duct air outlet units are arranged at intervals along the height direction of the side air duct.

[0027] According to an energy storage battery cluster provided by the utility model, the inter-cluster air duct has a third air outlet, a fourth air outlet and a second air inlet;

[0028] The second air inlet is provided at the top of the inter-cluster air duct, and the second air inlet is communicated with the cluster top air duct;

[0029] The third air outlet and the fourth air outlet are arranged on both sides of the inter-cluster air duct, the third air outlet and multiple fourth air outlets constitute an inter-cluster air duct air outlet unit, and the multiple inter-cluster air duct air outlet units are arranged at intervals along the height direction of the inter-cluster air duct.

[0030] The energy storage battery cluster provided by the present invention is provided with a cluster top air duct, side air ducts and multiple inter-cluster air ducts, and the cluster top air duct is connected with the side air duct and the multiple inter-cluster air ducts respectively, the side air duct and the multiple inter-cluster air ducts have multiple air outlets, and the multiple air outlets are arranged relative to the air inlets of the multiple battery boxes, so that the cooling air entering from the cooling air inlet can flow from top to bottom through the entire height of the side air ducts and the multiple inter-cluster air ducts, and can cool all battery boxes within the height range of the battery rack, thereby achieving uniform heat dissipation of all battery boxes. Since the side air ducts and the multiple inter-cluster air ducts are all in the three-dimensional frame of the battery rack, the space occupied by the battery rack is not increased, and uniform heat dissipation of the energy storage battery cluster in a compact layout is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 It is a three-dimensional structural diagram of the energy storage battery cluster provided by the utility model.

[0033] Figure 2 This is a front view of the energy storage battery cluster provided by the utility model.

[0034] Figure 3 The utility model provides Figure 2 Enlarged view of the K part.

[0035] Figure 4 It is a left view of the energy storage battery cluster provided by the utility model.

[0036] Figure 5 The utility model provides Figure 4 AA cross-sectional view.

[0037] Figure 6 It is a three-dimensional structural diagram of the first shelf provided by the utility model.

[0038] Figure 7 It is a three-dimensional structural diagram of the second layer frame provided by the utility model.

[0039] Figure 8 This is a schematic diagram of the installation of the first inlet air duct and the main air duct provided by the utility model.

[0040] Figure 9 This is a schematic diagram of the installation of the second inlet air duct and the main air duct provided by the utility model.

[0041] Figure 10 It is a three-dimensional structural diagram of the side air duct provided by the utility model.

[0042] Figure 11 It is a three-dimensional structural diagram of the inter-cluster air duct provided by the utility model.

[0043] Reference numerals:

[0044] 1. Battery rack; 11. Column; 12. Beam; 13. Support frame; 131. First shelf; 132. Second shelf; 1311. Curved air outlet structure;

[0045] 2. Battery box; 21. Cooling fan;

[0046] 3. Cluster top air duct; 31. Inlet air duct; 32. Main air duct; 33. Closing plate; 311. Cooling air inlet; 321. Wind shield;

[0047] 4. Side air duct; 41. First air outlet; 42. Second air outlet; 43. First air inlet;

[0048] 5. Inter-cluster air duct; 51. Third air outlet; 52. Fourth air outlet; 53. Second air inlet. DETAILED DESCRIPTION

[0049] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0050] The following combination Figures 1 to 11 , the energy storage battery cluster provided by the embodiment of the utility model is described in detail through specific embodiments and application scenarios.

[0051] like Figure 1 、 Figure 2 and Figure 3 As shown, this embodiment provides an energy storage battery cluster, including: a battery rack 1, a battery box 2, a cluster top air duct 3, a side air duct 4 and an inter-cluster air duct 5.

[0052] The battery rack 1 is used to carry multiple battery boxes 2.

[0053] The cluster top air duct 3 is arranged at the top of the battery rack 1 along the length direction of the battery rack 1 , the side air ducts 4 are arranged on both sides of the battery rack 1 , and multiple inter-cluster air ducts 5 are provided, and the multiple inter-cluster air ducts 5 are arranged at intervals in the battery rack 1 .

[0054] The cluster top air duct 3 is connected to the side air duct 4 and multiple inter-cluster air ducts 5 respectively. The cluster top air duct 3 has a cooling air inlet 311. The side air duct 4 and multiple inter-cluster air ducts 5 have multiple air outlets. The multiple air outlets are arranged opposite to the air inlets of multiple battery boxes 2.

[0055] It is understandable that the battery rack 1 can be a three-dimensional frame structure, which provides a mounting support for the battery box 2 and can place multiple battery boxes 2 in partitions and layers.

[0056] The top-cluster air duct 3 is mounted on the top of the battery rack 1. The cooling air inlet 311 of the top-cluster air duct 3 is designed to mate with the air outlet of the cooling source. In this embodiment, two side air ducts 4 are provided, one on each side of the length of the battery rack 1. Multiple inter-cluster air ducts 5 are provided, each arranged parallel and spaced in the middle of the battery rack 1. The length of the inter-cluster air duct 5 does not exceed the width of the battery rack 1. That is, the inter-cluster air duct 5 is sandwiched within the frame structure of the battery rack 1, without increasing the footprint of the battery rack 1. In this embodiment, the inter-cluster air duct 5 is arranged parallel to the side air duct 4.

[0057] In actual application, multiple battery boxes 2 are stacked on the battery rack 1, and the battery box 2 can be pushed vertically into the battery rack 1 from the length direction of the battery rack 1. The air inlets on the sides of the battery box 2 are respectively arranged corresponding to the multiple air outlets on the inter-cluster air duct 5 and the side air duct 4. The cooling air of the cold source enters the energy storage battery cluster from the cooling air inlet 311 of the cluster top air duct 3, and enters the inter-cluster air duct 5 and the side air duct 4 through the cluster top air duct 3, and enters the air inlet of the battery box 2 through the multiple air outlets of the inter-cluster air duct 5 and the side air duct 4, enters the battery box 2 for heat dissipation, and is discharged from the battery box 2 through the cooling fan 21 of the battery box 2.

[0058] The energy storage battery cluster provided by the present invention is provided with a cluster top air duct 3, side air ducts 4 and multiple inter-cluster air ducts 5, and the cluster top air duct 3 is connected with the side air duct 4 and the multiple inter-cluster air ducts 5 respectively, and the side air duct 4 and the multiple inter-cluster air ducts 5 have multiple air outlets, and the multiple air outlets are arranged relative to the air inlets of the multiple battery boxes 2, so that the cooling air entering from the cooling air inlet 311 can flow from top to bottom through the entire height of the side air duct 4 and the multiple inter-cluster air ducts 5, and can cool all battery boxes 2 within the height range of the battery rack 1, thereby achieving uniform heat dissipation of all battery boxes 2. Since the side air duct 4 and the multiple inter-cluster air ducts 5 are all in the three-dimensional frame of the battery rack 1, the space occupied by the battery rack 1 is not increased, thereby achieving uniform heat dissipation of the energy storage battery cluster in a compact layout.

[0059] In some embodiments, as Figure 4 、 Figure 5 、 Figure 6 and Figure 7 As shown, the battery rack 1 of this embodiment includes a column 11 , a beam 12 and a support bracket 13 .

[0060] There are multiple columns 11 , beams 12 and support brackets 13 . The multiple columns 11 are vertically spaced apart, and the multiple beams 12 are arranged at the top and bottom of the columns 11 .

[0061] A plurality of support brackets 13 are spaced apart on the columns 11 . The support brackets 13 extend along the width direction of the battery rack 1 to support the battery box 2 .

[0062] The support bracket 13 has a hollow opening, and the openings of the support bracket 13 are respectively arranged opposite to the air outlets of at least part of the side air duct 4 or the inter-cluster air duct 5. A curved air outlet structure 1311 is provided on the side of the support bracket 13 facing away from the outlet.

[0063] It can be understood that the two columns 11 are arranged in a group along the length direction of the battery rack 1 at intervals, and multiple beams 12 are provided at the top and bottom of the columns 11 to form a hollow three-dimensional frame structure. Multiple support brackets 13 are arranged in parallel and at intervals on the columns 11, and the length direction of the support brackets 13 extends along the width direction of the battery rack 1.

[0064] Furthermore, in this embodiment, reinforcing ribs are provided at the connection between the upright column 11 and the cross beam 12 to enhance the connection strength between the upright column 11 and the cross beam 12 .

[0065] Multiple support brackets 13 are used to support the battery box 2 in a stacked manner. Based on the hollow structure of the support brackets 13, the air outlets of some side air ducts 4 or inter-cluster air ducts 5 of this embodiment are arranged opposite the openings of the support brackets 13. In addition, a curved air outlet structure 1311 is provided on one side of the support bracket 13 of this embodiment, and the edges of the battery box 2 and the support bracket 13 that are arranged opposite each other are provided with a stepped structure to enable the battery box 2 to adapt to the curved air outlet structure 1311. The cooling air flowing in the side air ducts 4 and inter-cluster air ducts 5 can be guided by the support brackets 13 and flow into the battery box 2, increasing the side air intake of the battery box 2 and improving the heat dissipation effect of the battery box 2.

[0066] Specifically, the supporting frame 13 of this embodiment includes a first frame 131 and a second frame 132. The first frame 131 is arranged on the outermost column 11, and the second frame 132 is arranged on the inner column 11. The first frame 131 is surrounded by two oppositely arranged strip plates and two curved plates. The two curved plates are provided with openings for fixing the first frame 131 to the column 11 by fasteners. The second frame 132 is also composed of two oppositely arranged strip plates and two curved plates, but the second frame 132 is longer than the first frame 131. A connecting plate is provided at the intersection of the curved plate and the strip plate of the second frame 132. The connecting plate is provided with openings for fixing the second frame 132 to the column 11 by fasteners.

[0067] In some embodiments, as Figure 1 As shown, the cluster top air duct 3 of this embodiment includes an inlet air duct 31 , a main air duct 32 and a sealing plate 33 .

[0068] The main air duct 32 is arranged at the top of the battery rack 1 , and one side of the inlet air duct 31 has a cooling air inlet 311 , and the other side of the inlet air duct 31 is connected to one end of the main air duct 32 , and the other end of the main air duct 32 is blocked by a sealing plate 33 .

[0069] The bottom of the main air duct 32 is provided with strip-shaped openings, and the strip-shaped openings are respectively arranged opposite to the air inlet parts of the side air duct 4 and the inter-cluster air duct 5.

[0070] It can be understood that the cross-section of the inlet air duct 31 of this embodiment is trapezoidal, and the cross-sectional area of ​​the cooling air inlet 311 is larger than the connection between the inlet air duct 31 and the main air duct 32. When the cooling air flow rate is constant, the wind speed of the cooling air can be accelerated, thereby obtaining a better cooling effect.

[0071] Since the other end of the main air duct 32 is blocked by the sealing plate 33, the cooling air entering the main air duct 32 horizontally can only change its flow direction and enter the vertically downward side air duct 4 and the inter-cluster air duct 5, thereby guiding the flow direction of the cooling air and guiding the cooling air to cool the battery box 2 from top to bottom.

[0072] In some embodiments, as Figure 1 、 Figure 4 and Figure 5 As shown, the main air duct 32 of this embodiment is provided with a plurality of wind shielding plates 321 .

[0073] Along the flow direction of the cooling air, a plurality of wind shields 321 are respectively provided at the front sides of the inter-cluster air duct 5 and the side air duct 4 , and the wind shields 321 are provided in an arc shape.

[0074] It can be understood that the wind shield 321 can block the cooling air flowing horizontally forward, thereby guiding the cooling air to change its direction and flow vertically downward into the side air duct 4 and the inter-cluster air duct 5. Moreover, the arc-shaped setting of the wind shield 321 can make the change of the flow direction of the cooling air in contact with the wind shield 321 smoother and with less resistance.

[0075] In some embodiments, as Figure 1 、 Figure 4 and Figure 5 As shown, in this embodiment, along the flow direction of the cooling air, the arc radii of the multiple wind shielding plates 321 increase sequentially.

[0076] It is understandable that since part of the cooling air changes its direction and enters the side air duct 4 and the inter-cluster air duct 5 when the cooling air flows, the flow rate of the cooling air gradually decreases. The arc radius of the multiple wind shields 321 of this embodiment increases successively, so that along the flow direction of the cooling air, the wind shield 321 has a stronger blocking effect on the cooling air, thereby ensuring that the cooling air flow entering the side air duct 4 and the inter-cluster air duct 5 is uniform, and further ensuring the uniformity of heat dissipation of multiple battery boxes 2 in the length direction of the battery rack 1.

[0077] In some embodiments, as Figure 1 、 Figure 4 and Figure 5As shown, the wind shield 321 of this embodiment is arranged tangentially to the edges of the air inlet portions of the inter-cluster air duct 5 and the side air duct 4 .

[0078] It can be understood that the wind shield 321 is set tangent to the edges of the air inlet parts of the side air duct 4 and the inter-cluster air duct 5, which can make the transition of the change in flow direction of the cooling air when entering the side air duct 4 and the inter-cluster air duct 5 smoother, thereby reducing the resistance to the change in flow direction of the cooling air.

[0079] In some embodiments, as Figure 8 As shown, the inlet air duct 31 and the main air duct 32 of this embodiment are arranged in a one-to-one correspondence.

[0080] It is understandable that the number of inlet air ducts 31 and the number of main air ducts 32 in this embodiment are equal, and each inlet air duct 31 is set in a one-to-one correspondence with the main air duct 32. When the cooling demand is large, each energy storage battery cluster is separately configured with a cold source to ensure a better cooling effect.

[0081] In some embodiments, as Figure 9 As shown, in this embodiment, an inlet duct 31 is arranged corresponding to two main ducts 32 , one side of the inlet duct 31 has a cooling air inlet 311 , and the other side of the inlet duct 31 has two air outlets respectively arranged corresponding to the two main ducts 32 .

[0082] It is understandable that the inlet air duct 31 of this embodiment has two air outlets, and the two air outlets are respectively arranged in a one-to-one correspondence with the two main air ducts 32. When the cooling demand is small or the cooling power of a single machine is sufficient, two energy storage battery clusters are configured with one cold source, thereby improving the utilization rate of the cold source.

[0083] In some embodiments, as Figure 10 As shown, the side air duct 4 of this embodiment has a first air outlet 41 , a second air outlet 42 and a first air inlet 43 .

[0084] The first air inlet 43 is provided at the top of the side air duct 4 , and the first air inlet 43 is communicated with the cluster top air duct 3 .

[0085] The first air outlet 41 and the second air outlet 42 are arranged on the inner side of the side air duct 4 away from the two sides of the battery rack 1. The first air outlet 41 and the multiple second air outlets 42 constitute a side air duct outlet unit, and the multiple side air duct outlet units are arranged at intervals along the height direction of the side air duct 4.

[0086] It can be understood that the first air inlet 43 of the side air duct 4 is connected to the strip opening on the main air duct 32 of the cluster top air duct 3, which is used to guide the cooling air into the side air duct 4, and the first air outlet 41 and the second air outlet 42 are only arranged on one side of the side air duct 4.

[0087] The side air duct outlet unit includes a first air outlet 41 and multiple second air outlets 42. The first air outlet 41 is a strip hole set throughout the length, and the first air outlet 41 extends along the width direction of the battery rack 1; the second air outlet 42 is a rectangular hole, and the length of the second air outlet 42 is less than the length of the first air outlet 41. The multiple second air outlets 42 are set at intervals and arranged on the lower side of the first air outlet 41; wherein the first air outlet 41 is used to be set opposite to the opening of the first shelf 131.

[0088] In this embodiment, the multiple side air duct outlet units are arranged at intervals along the height direction of the side air duct 4, so that the side air duct 4 has air outlets from top to bottom, thereby achieving a good heat dissipation effect for the battery box 2 arranged on the side of the battery rack 1.

[0089] In some embodiments, as Figure 11 As shown, the inter-cluster air duct 5 of this embodiment has a third air outlet 51 , a fourth air outlet 52 and a second air inlet 53 .

[0090] The second air inlet 53 is provided at the top of the inter-cluster air duct 5 , and the second air inlet 53 is communicated with the cluster top air duct 3 .

[0091] The third air outlet 51 and the fourth air outlet 52 are arranged on both sides of the inter-cluster air duct 5 . The third air outlet 51 and the plurality of fourth air outlets 52 constitute an inter-cluster air duct outlet unit. The plurality of inter-cluster air duct outlet units are arranged at intervals along the height direction of the inter-cluster air duct 5 .

[0092] It can be understood that the second air inlet 53 of the inter-cluster air duct 5 is connected to the strip opening on the main air duct 32 of the cluster top air duct 3, which is used to guide the cooling air into the inter-cluster air duct 5 to flow, and the third air outlet 51 and the fourth air outlet 52 are arranged on both sides of the inter-cluster air duct 5, so that both sides of the inter-cluster air duct 5 can allow the cooling air to pass through.

[0093] The inter-cluster air duct outlet unit includes a third air outlet 51 and multiple fourth air outlets 52. The third air outlet 51 is a strip hole set throughout the length, and the third air outlet 51 extends along the width direction of the battery rack 1; the fourth air outlet 52 is a rectangular hole, and the length of the fourth air outlet 52 is less than the length of the third air outlet 51. The multiple fourth air outlets 52 are set at intervals and arranged on the lower side of the third air outlet 51; wherein the third air outlet 51 is used to be set opposite to the opening of the second shelf 132.

[0094] In this embodiment, the multiple inter-cluster air duct outlet units are arranged at intervals along the height direction of the inter-cluster air duct 5, so that the inter-cluster air duct 5 has air outlets from top to bottom, thereby achieving a good heat dissipation effect for the battery box 2 arranged inside the battery rack 1.

[0095] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An energy storage battery cluster, characterized in that: include: Battery racks, battery boxes, cluster top air ducts, side air ducts and inter-cluster air ducts; The battery rack is used to carry multiple battery boxes; The cluster top air duct is provided at the top of the battery rack along the length direction of the battery rack, the side air duct is provided on both sides of the battery rack, and a plurality of the inter-cluster air ducts are provided, and the plurality of inter-cluster air ducts are spaced apart and arranged in the battery rack; The cluster top air duct is respectively connected to the side air duct and the multiple inter-cluster air ducts, the cluster top air duct has a cooling air inlet, the side air duct and the multiple inter-cluster air ducts have multiple air outlets, and the multiple air outlets are arranged opposite to the air inlets of the multiple battery boxes.

2. The energy storage battery cluster according to claim 1, characterized in that: The battery rack includes columns, beams and support brackets; There are a plurality of the columns, beams and support brackets, wherein the columns are vertically spaced apart, and the beams are arranged at the top and bottom of the columns; A plurality of support brackets are arranged on the columns at intervals, and the support brackets extend along the width direction of the battery rack to support the battery box; The support bracket has an opening in a hollow shape, and the opening of the support bracket is respectively arranged opposite to the air outlet of at least part of the side air duct or the inter-cluster air duct, and the side of the support bracket away from the opening is provided with an arc-shaped air outlet structure.

3. The energy storage battery cluster according to claim 2, characterized in that: The support frame includes a first layer frame and a second layer frame, the first layer frame is mounted on the outermost column, and the second layer frame is mounted on the inner column.

4. The energy storage battery cluster according to claim 1, characterized in that: The cluster top air duct includes an inlet air duct, a main air duct and a sealing plate; The main air duct is provided at the top of the battery rack, one side of the inlet air duct is provided with a cooling air inlet, the other side of the inlet air duct is connected to one end of the main air duct, and the other end of the main air duct is blocked by the sealing plate; The bottom of the main air duct is provided with strip-shaped openings, and the strip-shaped openings are respectively arranged opposite to the air inlet parts of the side air duct and the inter-cluster air duct.

5. The energy storage battery cluster according to claim 4, characterized in that: The main air duct is provided with a plurality of wind shields; Along the flow direction of the cooling air, a plurality of wind shields are respectively arranged on the front sides of the inter-cluster air duct and the side air duct, and the wind shields are arranged in an arc shape.

6. The energy storage battery cluster according to claim 5, characterized in that: Along the flow direction of the cooling air, the arc radii of the multiple wind shields increase successively.

7. The energy storage battery cluster according to claim 5, characterized in that: The wind shield is arranged tangentially to the edges of the air inlet portions of the inter-cluster air duct and the side air duct.

8. The energy storage battery cluster according to claim 4, characterized in that: The inlet air duct is arranged in a one-to-one correspondence with the main air duct; Alternatively, one inlet air duct is arranged corresponding to the two main air ducts, one side of the inlet air duct has the cooling air inlet, and the other side of the inlet air duct has two air outlets respectively arranged corresponding to the two main air ducts.

9. The energy storage battery cluster according to claim 1, characterized in that: The side air duct has a first air outlet, a second air outlet and a first air inlet; The first air inlet is provided at the top of the side air duct, and the first air inlet is communicated with the cluster top air duct; The first air outlet and the second air outlet are arranged on the inner side of the side air duct away from the two sides of the battery rack. The first air outlet and multiple second air outlets constitute a side air duct air outlet unit, and the multiple side air duct air outlet units are arranged at intervals along the height direction of the side air duct.

10. The energy storage battery cluster according to claim 1, characterized in that: The inter-cluster air duct has a third air outlet, a fourth air outlet and a second air inlet; The second air inlet is provided at the top of the inter-cluster air duct, and the second air inlet is communicated with the cluster top air duct; The third air outlet and the fourth air outlet are arranged on both sides of the inter-cluster air duct, the third air outlet and multiple fourth air outlets constitute an inter-cluster air duct air outlet unit, and the multiple inter-cluster air duct air outlet units are arranged at intervals along the height direction of the inter-cluster air duct.

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