Air-cooled energy storage cabinet and air-cooled energy storage system

Abstract

The utility model discloses an air-cooled energy storage cabinet and an air-cooled energy storage system. The air-cooled energy storage cabinet comprises a battery cabinet, an air conditioner and an air inlet pipeline, the battery cabinet is filled with a plurality of battery clusters, and a front cabin and a back cabin are formed between the battery clusters and a front plate and a back plate of the battery cabinet respectively; the air conditioner is mounted on the outer side of the rear plate of the battery cabinet; one end of the air inlet pipeline is communicated with the air conditioner, and the other end of the air inlet pipeline is communicated with the front cabin through the space between the two adjacent battery clusters. According to the embodiment of the invention, the gaps among the battery clusters are used as the air ducts, so that the space occupation of the air cooling system is reduced, and the volume of the receivable energy storage system is increased; the air inlet pipeline is communicated with the front cabin, so that the temperature consistency of the whole cabinet is good; therefore, the performance, the use efficiency and the service life of the battery cluster and the energy storage cabinet are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage systems, and particularly relates to an air-cooled energy storage cabinet and an air-cooled energy storage system. Background Art

[0002] With the large-scale grid connection of new energy and the construction of smart grids, energy storage systems have recently received extensive attention and a large number of applications. Most of the existing battery energy storage systems are air-cooled distributed energy storage cabinets, that is, a battery cluster composed of multiple battery packs is arranged in a cabinet-type box body. Temperature is an important factor affecting the safety, performance and life of the battery cluster. If the temperature is too high or too low, the performance of the battery will be significantly attenuated, and at the same time, the aging will be accelerated. A too large temperature difference between different battery packs will affect the consistency of battery performance, thereby reducing the performance and life of the battery cluster.

[0003] At present, the industrial air conditioners of air-cooled distributed energy storage cabinets are mainly placed in front of the battery cluster, which easily leads to relatively high noise in the front of the energy storage cabinet, inconvenient operation and maintenance inspection, and not very beautiful. In addition, the battery compartment in the energy storage cabinet adopts a completely enclosed structure to prevent external substances from entering the battery compartment. The air ducts of the air-cooled energy storage cabinet are arranged from the upper or side of the cabinet body, which will occupy a part of the space of the cabinet body and reduce the volume of the energy storage cabinet for accommodating batteries. At the same time, the air outlet of the air duct is on one side, resulting in uneven distribution of cold air and relatively poor cooling consistency. This makes the internal temperature distribution of the energy storage cabinet uneven, affecting the use efficiency and life of the energy storage cabinet.

[0004] In summary, the existing air-cooled energy storage cabinets have technical problems of relatively large air duct space occupation and relatively poor cooling consistency. Summary of the Utility Model

[0005] The purpose of this application is to overcome the above technical deficiencies, and propose an air-cooled energy storage cabinet and an air-cooled energy storage system to solve the technical problems of relatively large air duct space occupation and relatively poor cooling consistency existing in the prior art.

[0006] To achieve the above technical purpose, this application adopts the following technical solutions:

[0007] In the first aspect, this application provides an air-cooled energy storage cabinet, including a battery cabinet, an air conditioner and an air inlet pipe:

[0008] The battery cabinet is filled with multiple battery clusters, and a front cabin and a rear cabin are formed between the battery clusters and the front plate and the rear plate of the battery cabinet respectively;

[0009] The air conditioner is installed outside the rear plate of the battery cabinet; and

[0010] The air inlet pipe, one end of the air inlet pipe is communicated with the air conditioner, and the other end passes between two adjacent battery clusters and is communicated with the front cabin.

[0011] In some embodiments of the present application, a plurality of the battery clusters are arranged in parallel. Each battery cluster includes a plurality of battery packs arranged in a stacked manner. There is a certain gap between two adjacent battery clusters, and the air inlet duct passes through the gap.

[0012] In some embodiments of the present application, it further includes a front support column, a rear support column, and multiple layers of partition plates. The front support column and the rear support column are oppositely arranged. The multiple layers of partition plates are installed between the front support column and the rear support column and carry the battery packs.

[0013] In some embodiments of the present application, the rear support column has a first through hole penetrating through the front and rear. The front support column has an air inlet hole and an air outlet hole communicating with each other through the front and rear. The air inlet duct passes through the first through hole and communicates with the air inlet hole of the front support column, and the air outlet hole of the front support column communicates with the front cabin.

[0014] In some embodiments of the present application, each front support column has at least one air inlet hole and multiple air outlet holes, and each air outlet hole is located between two adjacent battery packs.

[0015] In some embodiments of the present application, the rear support column has a first through hole penetrating through the front and rear. The front support column has a second through hole penetrating through the front and rear. The air inlet duct passes through the first through hole and the second through hole and communicates with the front cabin.

[0016] In some embodiments of the present application, it further includes an exhaust air circuit. One end of the exhaust air circuit is opened in front of the battery cluster and communicates with the front cabin, and the other end passes through the inside of the battery cluster, the rear cabin and communicates with the air conditioner.

[0017] In some embodiments of the present application, it further includes a plurality of exhaust fans. Each exhaust air circuit penetrates through a battery pack to communicate the front cabin and the rear cabin, and each exhaust fan is installed on one side of a battery pack facing the front cabin.

[0018] In some embodiments of the present application, the air conditioner includes an air inlet and an air outlet. The air inlet communicates with the air inlet duct, and the air outlet communicates with the rear cabin.

[0019] In a second aspect, the present application further provides an air-cooled energy storage system, including the air-cooled energy storage cabinet according to any one of the embodiments in the first aspect.

[0020] Compared with the prior art, the beneficial technical effects brought by the technical solution provided in this application include: In the embodiment of this application, the air inlet duct is designed between two adjacent battery clusters, and the gap between the battery clusters is used as the air duct, reducing the space occupied by the air-cooling system and increasing the volume of the energy storage system that can be accommodated; the air inlet duct is connected to the front cabin, and different numbers of air outlet holes can be opened as needed, and the temperature consistency of the entire cabinet is good; the size of each air outlet hole can also be controlled as needed to adjust the air volume output in different areas of the front cabin, further reducing the temperature difference between different areas, thereby improving the performance, service efficiency, and lifespan of the battery clusters and the energy storage cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in this application, the following briefly introduces the drawings required for the embodiments:

[0022] Figure 1 is a front view of an air-cooled energy storage cabinet provided by an embodiment of this application;

[0023] Figure 2 is a longitudinal sectional view of an air-cooled energy storage cabinet provided by an embodiment of this application;

[0024] Figure 3 is a transverse sectional view of an air-cooled energy storage cabinet provided by an embodiment of this application.

[0025] REFERENCE NUMERALS:

[0026] 1 - Battery cabinet, 2 - Air conditioner, 3 - Air inlet duct, 4 - Exhaust air circuit, 5 - Front support column, 6 - Rear support column, 7 - Exhaust fan;

[0027] 11 - Battery cluster, 12 - Battery pack, 13 - Front cabin, 14 - Rear cabin;

[0028] 61 - Air inlet hole, 62 - Air outlet hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] In order to make the objectives, technical solutions, and advantages of this application clearer, the following further details this application in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit this application.

[0030] Those skilled in the art of the present technology can understand that, in this specification, the term "including" is an open-ended expression, meaning that the stated features exist but other features are not excluded. The orientation terms "upper", "lower", "left", "right", etc. are exemplary directions based on the figures shown. Features defined with "first" and "second" implicitly include one or more of such features. The singular form can also be used for the plural form. The meaning of "a plurality" is two or more. The terms "mounted", "connected", and "coupled" can be a fixed connection, a detachable connection, or an integral connection; they can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two components. In addition, "connection" can include wireless connection.

[0031] The purpose of the present application is to overcome the above technical deficiencies and propose an air-cooled energy storage cabinet and an air-cooled energy storage system, so as to solve the technical problems of large occupied space of the air duct and poor cooling uniformity in the prior art.

[0032] To achieve the above technical objectives, the present application adopts the following technical solutions:

[0033] In a first aspect, the present application provides an air-cooled energy storage cabinet, as Figures 1 - 3 shown, Figure 1 is a front view of an air-cooled energy storage cabinet provided by an embodiment of the present application; Figure 2 is a longitudinal sectional view of an air-cooled energy storage cabinet provided by an embodiment of the present application; Figure 3 is a transverse sectional view of an air-cooled energy storage cabinet provided by an embodiment of the present application. Figure 2 is Figure 1 a sectional view taken along the A-A direction in Figure 3 is Figure 1 a sectional view taken along the B-B direction in, and the arrows in the figure indicate the air flow direction.

[0034] An air-cooled energy storage cabinet includes a battery cabinet 1, an air conditioner 2, and an air inlet duct 3:

[0035] The battery cabinet 1 is filled with a plurality of battery clusters 11, and front compartments 13 and rear compartments 14 are formed between the battery clusters 11 and the front panel and the rear panel of the battery cabinet 1 respectively;

[0036] The air conditioner 2 is installed outside the rear panel of the battery cabinet 1;

[0037] The air inlet duct 3 is communicated with the air conditioner 2 at one end and communicated with the front compartment 13 at the other end through the space between two adjacent battery clusters 11.

[0038] In the embodiments of the present application, the intake duct 3 is designed between two adjacent battery clusters 11. By using the gap between the battery clusters as the air duct, the space occupied by the air-cooling system is reduced, and the volume of the energy storage system that can be accommodated is increased. The intake duct 3 is communicated with the front cabin 13, and different numbers of air outlets can be opened as needed, so that the temperature uniformity of the whole cabinet is good. The size of each air outlet can also be controlled as needed to adjust the air volume output in different areas of the front cabin 13, further reducing the temperature difference in different areas, thereby improving the performance, service efficiency and lifespan of the battery cluster 11 and the energy storage cabinet.

[0039] In some embodiments of the present application, multiple battery clusters 11 are arranged in parallel. Each battery cluster 11 includes multiple battery packs 12 arranged in layers. There is a certain gap between two adjacent battery clusters 11, and the intake duct 3 passes through the gap.

[0040] In this embodiment, multiple battery clusters 11 are arranged in parallel along Figure 1 the left-right direction, and multiple battery packs 12 are arranged in layers along Figure 1 the up-down direction. The battery packs 12 in the entire battery cabinet 1 are arranged in an array.

[0041] In some embodiments of the present application, it further includes a front support column 5, a rear support column 6 and multiple layers of partition boards. The front support column 5 and the rear support column 6 are arranged opposite to each other, and the multiple layers of partition boards are installed between the front support column 5 and the rear support column 6 and carry the battery packs 12.

[0042] In this embodiment, the left and right ends of the partition board are fixedly connected to the left side plate and the right side plate of the battery cabinet 1. However, since the partition board needs to carry the battery packs 12, there are certain requirements for the bearing capacity of the partition board. Multiple front support columns 5 and rear support columns 6 are arranged between the left side plate and the right side plate of the battery cabinet 1 to reinforce the partition board. The front support column 5 and the rear support column 6 are arranged between two adjacent battery clusters 11 so as not to hinder the insertion and removal of the battery packs 12.

[0043] In some embodiments of the present application, the rear support column 6 has a first through hole penetrating from front to back, the front support column 5 has an air inlet hole 61 and an air outlet hole 62 communicating from front to back. The intake duct 3 passes through the first through hole and is communicated with the air inlet hole 61 of the front support column 5, and the air outlet hole 62 of the front support column 5 is communicated with the front cabin 13.

[0044] In some embodiments of the present application, each front support column 5 has at least one air inlet hole 61 and multiple air outlet holes 62, and each air outlet hole 62 is located between two adjacent battery packs 12.

[0045] In one embodiment, the air inlet duct 3 passes through the back support column 6 and extends into the front support column 5. By designing different numbers, positions, and sizes of the air outlet holes 62 on the front support column 5, the air flow can be redistributed by the front support column 5.

[0046] For example, corresponding air outlet holes 62 are provided in the area of each battery pack 12. After the air flow flows out from the front support column 5, there is no distance difference in the height direction between the air flow and the corresponding battery pack 12 that needs to be cooled, and the air flow only flows in the width direction, so the temperature uniformity of the entire cabinet is good.

[0047] It is also possible to design different numbers, sizes, and positions of the air outlet holes 62 according to the different heat dissipation requirements of each layer of battery packs 12.

[0048] In some embodiments of the present application, the back support column 6 has a first through hole that penetrates from front to back, the front support column 5 has a second through hole that penetrates from front to back, and the air inlet duct 3 passes through the first through hole and the second through hole to communicate with the front cabin 13.

[0049] In another embodiment, the air inlet duct 3 directly penetrates through the back support column 6 and the front support column 5 in sequence, and the air inlet duct 3 is directly discharged into the front cabin 13 of the battery pack 12. By distributing the air flow through the front cabin 13, the processing requirements for the support column are relatively low, which is suitable for energy storage cabinets with a relatively small volume.

[0050] In some embodiments of the present application, there is an exhaust air circuit 4. One end of the exhaust air circuit 4 is opened in front of the battery cluster 11 and communicates with the front cabin 13, and the other end passes through the inside of the battery cluster 11, the back cabin 14 and communicates with the air conditioner 2.

[0051] In some embodiments of the present application, there are also a plurality of exhaust fans 7. Each exhaust air circuit 4 penetrates through one battery pack 12 to communicate the front cabin 13 and the back cabin 14, and each exhaust fan 7 is installed on one side of the battery pack 12 facing the front cabin.

[0052] In this embodiment, the exhaust air circuit 4 introduces the air flow in the front cabin 13 into the back cabin 14. In this process, the air flow passes through the battery pack 12 and exchanges heat with the battery pack 12, thereby taking away the heat. Then the air conditioner 2 extracts the air flow carrying the heat from the back cabin 14 and discharges it outside the battery cabinet 1. By setting the exhaust fans 7, the air flow velocity can be increased and the heat dissipation efficiency can be improved.

[0053] In some embodiments of the present application, the air conditioner 2 includes an air inlet and an air outlet. The air inlet is communicated with the air inlet duct 3, and the air outlet is communicated with the back cabin 14.

[0054] In this embodiment, the air circulation process is as follows: the cold air outside the cabinet is sucked into the air conditioner 2 by the air conditioner 2. The air discharged from the air conditioner 2 is led to the front cabin 13 of the battery pack 12 through the air inlet pipe 3, and then introduced into the battery pack 12 by the fan of the battery pack 12 to complete the temperature control. Then, it is discharged from the battery pack 12 to the rear cabin 14 of the battery pack 12, and finally, the hot air in the rear cabin 14 is extracted by the air conditioner 2 and discharged outside the battery cabinet 1.

[0055] In a second aspect, the present application further provides an air-cooled energy storage system, including the air-cooled energy storage cabinet described in any one of the embodiments of the first aspect.

[0056] Compared with the prior art, the beneficial technical effects brought by the technical solution provided by the present application include: in the embodiment of the present application, by designing the air inlet pipe 3 between two adjacent battery clusters 11 and using the gap between the battery clusters as the air duct, the space occupied by the air-cooled system is reduced, and the volume of the energy storage system that can be accommodated is increased; the air inlet pipe 3 is communicated with the front cabin 13, and different numbers of air outlets can be opened as needed, so that the temperature consistency of the whole cabinet is good; the size of each air outlet can also be controlled as needed to adjust the air volume discharged from different areas in the front cabin 13, further reducing the temperature difference between different areas, thereby improving the performance, service efficiency and lifespan of the battery cluster 11 and the energy storage cabinet.

[0057] Those skilled in the art of the present technology can understand that the steps, measures, and solutions in the various operations, methods, and processes discussed in the present application can be alternated, changed, rearranged, decomposed, combined, or deleted.

[0058] The specific embodiments of the present application described above do not constitute a limitation to the protection scope of the present application. Any other corresponding changes and deformations made according to the technical concept of the present application should be included within the protection scope of the claims of the present application.

Claims

1. An air-cooled energy storage cabinet, characterized in that: include: A battery cabinet, wherein a plurality of battery clusters are filled in the battery cabinet, and the battery clusters respectively form a front compartment and a back compartment with the front plate and the back plate of the battery cabinet; An air conditioner installed on the outer side of the rear panel of the battery cabinet; and An air inlet duct, one end of which is connected to the air conditioner, and the other end of which is connected to the front compartment via two adjacent battery clusters.

2. The air-cooled energy storage cabinet according to claim 1, characterized in that: A plurality of the battery clusters are arranged in parallel, each of the battery clusters comprises a plurality of battery packs arranged in a stacked manner, a certain gap is provided between two adjacent battery clusters, and the air inlet duct passes through the gap.

3. The air-cooled energy storage cabinet according to claim 2, characterized in that: It also includes a front support column, a back support column and a multi-layer partition. The front support column is arranged opposite to the back support column, and the multi-layer partition is installed between the front support column and the back support column and supports the battery pack.

4. The air-cooled energy storage cabinet according to claim 3, characterized in that: The back support column has a first through hole running through the front and back, the front support column has an air inlet and an air outlet connected to the front and back, the air inlet duct passes through the first through hole and is connected to the air inlet of the front support column, and the air outlet of the front support column is connected to the front cabin.

5. The air-cooled energy storage cabinet according to claim 4, characterized in that: Each of the front support columns has at least one air inlet hole and a plurality of air outlet holes, and each of the air outlet holes is located between two adjacent battery packs.

6. The air-cooled energy storage cabinet according to claim 3, characterized in that: The back support column has a first through hole extending from front to back, the front support column has a second through hole extending from front to back, and the air inlet duct passes through the first through hole and the second through hole to communicate with the front cabin.

7. The air-cooled energy storage cabinet according to claim 2, characterized in that: It also includes an exhaust circuit, one end of which is opened in front of the battery cluster and connected to the front compartment, and the other end is connected to the air conditioner through the inside of the battery cluster and the back compartment.

8. The air-cooled energy storage cabinet according to claim 7, characterized in that: It also includes a plurality of exhaust fans, each of the exhaust circuits passes through a battery pack and connects the front compartment and the back compartment, and each of the exhaust fans is installed on a side of the battery pack facing the front compartment.

9. The air-cooled energy storage cabinet according to claim 1, characterized in that: The air conditioner comprises an air inlet and an air outlet, wherein the air inlet is communicated with the air inlet duct, and the air outlet is communicated with the back compartment.

10. An air-cooled energy storage system, characterized in that: It comprises an air-cooled energy storage cabinet as described in any one of claims 1 to 9.

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