Cooling device and energy storage container system

Abstract

A cooling device and an energy storage container system. The cooling device comprises an air feeder (100), a main air duct (200) and a plurality of adjusting assemblies (300), wherein a cold air outlet (121) of the air feeder (100) is configured to supply cooling air; the main air duct (200) is in communication with the cold air outlet (121), the main air duct (200) is provided with a plurality of cluster-level air inlets (210), which correspond to a plurality of battery clusters (10) on a one-to-one basis, and cooling air can enter the battery clusters (10) through the cluster-level air inlets (210) to cool the battery clusters (10) down; and the adjusting assemblies (300) cover the cluster-level air inlets (210) in a one-to-one correspondence manner, and the adjusting assemblies (300) can adjust the opening degrees of the cluster-level air inlets (210).

Description

Cooling device and energy storage container system

[0001] The present application claims priority to the Chinese patent application No. 202421801046.9, filed on July 26, 2024, to the Chinese Patent Office, the whole content of the above application being incorporated herein by reference.

[0002] TECHNICAL FIELD

[0003] The present application relates to the technical field of energy storage batteries, for example to a cooling device and an energy storage container system.

[0004] BACKGROUND

[0005] With the development of economy, energy storage will become an important form of energy storage in the future energy system, and needs to be introduced as a new source of regulation capacity to regulate power in the power system. On the power generation side and the energy storage side, large-capacity energy storage devices are mostly used, which generally adopt container-type energy storage systems. Container-type energy storage systems have the advantages of high capacity, strong reliability, high flexibility, strong environmental adaptability, etc. However, due to the high energy density of the energy storage container and the large number of batteries, the heat dissipation is large, and therefore, thermal management is one of the most critical technologies for the entire container-type battery energy storage system. Common cooling methods include air cooling, liquid cooling, and phase change cooling.

[0006] At present, the energy storage container sets multiple battery clusters and uses air cooling to dissipate heat from the multiple battery clusters. At the same time, the container is provided with an air conditioner and an air duct. However, the battery cluster closer to the air outlet of the air conditioner is blown with more air, resulting in better heat dissipation, while the battery cluster farther from the air outlet is blown with less air, resulting in poor heat dissipation of the battery cluster at the far end.

[0007] TECHNICAL PROBLEM

[0008] The cooling system of the energy storage container in the related art has the defect that the heat dissipation effect of the air duct is not uniform, resulting in a large difference in the heat dissipation effect of the arranged battery cluster groups between the far end and the near end. This not only affects the overall heat dissipation effect of the energy storage container, but also causes a large temperature difference between the battery cells in the system, resulting in a decrease in the overall service life of the energy storage system.

[0009] TECHNICAL SOLUTION

[0010] The present application provides a cooling device that can adjust the amount of air blown into the battery cluster according to the demand, ensuring that the heat dissipation effect between each group of battery clusters is the same, improving the uniformity of the temperature of multiple groups of battery clusters, improving the heat dissipation effect, and prolonging the service life of the battery cluster.

[0011] In a first aspect, the embodiments of the present application provide a cooling device, which comprises an air feeder, a main air duct and a plurality of adjusting assemblies. The air feeder is configured to provide cooling air through a cooling air outlet. The main air duct is connected to the cooling air outlet. The main air duct is provided with a plurality of cluster-level air inlets corresponding to a plurality of battery clusters. The cooling air can enter the battery clusters through the cluster-level air inlets to cool the battery clusters. The adjusting assemblies are arranged corresponding to the cluster-level air inlets. The adjusting assemblies can adjust the opening degree of the cluster-level air inlets.

[0012] In a second aspect, the present application provides an energy storage container system, which comprises the cooling device according to any one of the above-mentioned solutions and a plurality of battery clusters. The battery clusters are arranged corresponding to the cluster-level air inlets. The energy storage container system can change the air inlet amount of each cluster-level air inlet to meet the cooling air amount requirements of different battery clusters, realize the uniformity of the heat dissipation effect, thereby improving the temperature uniformity of the energy storage container system, improving the heat dissipation effect, and prolonging the service life of the battery clusters of the energy storage container system.

[0013] Advantages

[0014] The cooling device in the present application uses the air feeder to provide cooling air for cooling the battery clusters. The cooling air is first discharged from the cooling air outlet and enters the main air duct. The main air duct is provided with a plurality of cluster-level air inlets. Through the cluster-level air inlets, the cooling air is distributed and discharged into the corresponding battery clusters, thereby cooling the battery clusters. The cluster-level air inlets are provided with adjusting assemblies. The adjusting assemblies can adjust the opening degree of the cluster-level air inlets, thereby adjusting the air inlet amount of each battery cluster, so that the cooling air can be uniformly distributed to each battery cluster to meet the cooling air amount requirements of different battery clusters, realize the uniformity of the heat dissipation effect, thereby improving the temperature uniformity of the energy storage container system using the cooling device, improving the heat dissipation effect, and prolonging the service life of the battery clusters.

[0015] BRIEF DESCRIPTION OF DRAWINGS

[0016] FIG. 1 is an axonometric view of an energy storage container system according to an embodiment of the present application, with the battery clusters hidden;

[0017] FIG. 2 is an axonometric view of a cooling device according to an embodiment of the present application, with part of the structure hidden;

[0018] FIG. 3 is an axonometric view of an adjusting assembly according to an embodiment of the present application.

[0019] In the drawings:

[0020] 10, battery cluster;

[0021] 100, air feeder; 110, air conditioner; 120, air feeding duct; 121, cooling air outlet;

[0022] 200, main air duct; 210, cluster level air inlet; 211, guide plate; 212, guide hole; 213, avoidance hole;

[0023] 300, adjusting assembly; 310, wind shield; 320, pull rod; 321, sliding groove; 330, fixing frame; 331, first nut; 332, fastening bolt; 333, second nut; 334, support frame; 340, fixing support.

[0024] Embodiments of the present application

[0025] Please refer to FIG. 1, in the embodiment, a kind of energy storage container system is provided, the energy storage container system includes cooling device and multiple battery clusters 10 described in the embodiment, battery cluster 10 is one by one corresponding to be arranged in the cluster level air inlet 210 of cooling device.The cooling device used by the energy storage container system is provided with the cluster level air inlet 210 corresponding to battery cluster 10, each cluster level air inlet 210 is provided with adjusting assembly 300, the opening of cluster level air inlet 210 is adjusted using adjusting assembly 300, to change the air intake of each cluster level air inlet 210, to meet the cold air quantity demand of different battery clusters 10, realize the unity of heat dissipation effect, to improve the temperature uniformity of the energy storage container system, improve the heat dissipation effect, prolong the service life of battery cluster 10 of the energy storage container system.

[0026] Please continue to refer to FIG. 1 and FIG. 2, the cooling device includes air feeder 100, main air duct 200 and multiple adjusting assemblies 300, the cold air outlet 121 of air feeder 100 is provided to provide cooling air;Main air duct 200 is communicated and arranged in cold air outlet 121, main air duct 200 is provided with multiple cluster level air inlets 210 corresponding to multiple battery clusters 10, cooling air can enter battery cluster 10 from cluster level air inlet 210 and cool battery cluster 10;Adjusting assembly 300 is one by one corresponding to cover cluster level air inlet 210, adjusting assembly 300 can adjust the opening of cluster level air inlet 210.

[0027] The cooling device in the embodiment uses air feeder 100 to provide cooling air for cooling battery cluster 10, cooling air is first discharged from cold air outlet 121 and enters main air duct 200, main air duct 200 is provided with multiple cluster level air inlets 210, via cluster level air inlet 210, cooling air is distributed and respectively discharged into corresponding battery cluster 10, to cool battery cluster 10;And cluster level air inlet 210 is provided with adjusting assembly 300, adjusting assembly 300 can adjust the opening of cluster level air inlet 210, to adjust the air intake of each battery cluster 10, so that cooling air can be evenly distributed to each battery cluster 10, to meet the cold air quantity demand of different battery clusters 10, realize the unity of heat dissipation effect, to improve the temperature uniformity of the energy storage container system using the cooling device, improve the heat dissipation effect, prolong the service life of battery cluster 10.

[0028] As in the present embodiment, the main air duct 200 is in the shape of a cuboid, and the cluster-level air inlets 210 are arranged at intervals along the length direction of the main air duct 200. Thus, the cooling air pressure of the cluster-level air inlets 210 close to the cold air outlet 121 is greater, while the cooling air pressure of the cluster-level air inlets 210 far from the cold air outlet 121 is smaller. Therefore, along the direction away from the cold air outlet 121, the air volume of the cooling air entering each battery cluster 10 can be made the same by gradually increasing the opening degree of the cluster-level air inlets 210, so as to realize the uniformity of the cooling effect and improve the cooling effect of the battery clusters 10 at the far end, thereby improving the service life.

[0029] Please continue to refer to FIG. 2. In some embodiments, the air supply device 100 includes an air conditioner 110 and an air supply air duct 120 arranged on the top of the air conditioner 110. The sidewall of the air supply air duct 120 is provided with a cold air outlet 121, and the air supply air duct 120 is arranged at the same height as the main air duct 200. The air conditioner 110 sends cold air to the air supply air duct 120 on the top and transmits it to the main air duct 200. Since the density of the cold air is greater than that of the hot air, the cooling air can enter the cluster-level air inlets 210 under the action of gravity, so as to realize the cooling of the battery clusters 10 and achieve a better cooling effect. At the same time, the air supply air duct 120 is arranged at the same height as the main air duct 200, and the battery clusters 10 are arranged below the main air duct 200, so that the cooling device and the battery clusters 10 form a cuboid-shaped energy storage container with a consistent appearance, improving the aesthetic appearance and reducing the space occupancy of the cooling device and the energy storage container system.

[0030] As shown in FIGS. 2 and 3, the adjusting assembly 300 includes a baffle plate 310 and an adjusting structure. The baffle plate 310 is arranged on the cluster-level air inlets 210, and the adjusting structure is connected to the main air duct 200. The output end of the adjusting structure is connected with the baffle plate 310, so that the baffle plate 310 moves at the cluster-level air inlets 210 and changes the opening degree of the cluster-level air inlets 210. The adjusting structure can be a driving member such as a motor or a driving cylinder, or the baffle plate 310 can be manually pulled, so that the baffle plate 310 is driven to move at the cluster-level air inlets 210, thereby realizing the plugging, complete opening and opening degree adjustment of the cluster-level air inlets 210 by the baffle plate 310, so as to change the air inlet volume of the cluster-level air inlets 210. The adjusting mode is simple and reliable.

[0031] In the embodiment, the adjusting structure comprises a pull rod 320 which is slidingly connected to the bottom wall of the main air duct 200, the first end of the pull rod 320 extends out of the side wall of the main air duct 200, and the second end of the pull rod 320 is fixedly connected with the air baffle 310. By slidingly connecting the pull rod 320 to the bottom wall of the main air duct 200, the operator can manually pull the pull rod 320 to drive the air baffle 310 to adjust the opening degree of the cluster-level air inlet 210, which is low in cost and reliable in operation, and can reduce the manufacturing cost and maintenance cost of the cooling device.

[0032] In some embodiments, referring to FIGS. 2 and 3, the bottom wall of the main air duct 200 at the cluster-level air inlet 210 is provided with a flow guide plate 211 which is provided with a plurality of flow guide holes 212, and the connection between the flow guide plate 211 and the bottom wall of the main air duct 200 is provided with a relief hole 213 in which the air baffle 310 of the adjusting assembly 300 can be accommodated. The flow guide plate 211 is arranged to guide the cooling air discharged from the cluster-level air inlet 210 to blow vertically downward into the battery cluster 10, and the flow guide holes 212 uniformly disperse the cooling air to be blown into every corner of the battery cluster 10, thereby improving the heat dissipation effect and efficiency of the cooling device, and the temperature of the battery cluster 10 is more uniform.

[0033] In some embodiments, the side wall of the main air duct 200 away from the air baffle 310 is provided with a fixing bracket 330 which is fixedly provided with a first nut 331, the first nut 331 is threadedly connected with a fastening bolt 332 which can sequentially pass through the first nut 331 and the fixing bracket 330 and abut against the pull rod 320. The fastening bolt 332 is threadedly connected with the first nut 331 to be tightly screwed against the pull rod 320, thereby fixing the position of the pull rod 320, avoiding the position change of the air baffle 310 at the cluster-level air inlet 210, ensuring the stability and constancy of the air inlet amount of each battery cluster 10, and keeping the heat dissipation effect of the battery cluster 10 unchanged.

[0034] Please continue to refer to FIG. 3, the pull rod 320 is provided with a sliding groove 321, the slot of the sliding groove 321 faces the bottom wall of the main air duct 200, and the bottom of the fastening bolt 332 can abut against the inner bottom wall of the sliding groove 321. The sliding groove 321 not only can avoid the bottom of the fastening bolt 332, but also can extend the stroke of the fastening bolt 332 to better fix the pull rod 320 and avoid the position change of the air baffle 310.

[0035] In the embodiment, the bottom wall of the main air duct 200 is provided with the fixing support 340, the bottom of the fixing support 330 is further provided with the supporting frame 334, and the bottom wall of the main air duct 200 and the fixing support 340 and the supporting frame 334 and the fixing support 330 are jointly provided with the pull rod 320 which is connected in a penetrating and sliding mode. The pull rod 320 is connected to the supporting frame 334 and the fixing support 340 in a sliding mode, which is simple in structure, light in weight, small in contact area, can reduce the friction when the pull rod 320 slides, and is more convenient for the operator to operate.

[0036] In some embodiments, the head of the fastening bolt 332 and the first nut 331 are further connected in a threaded mode with the second nut 333. After the fastening bolt 332 and the first nut 331 are tightened and abut against the pull rod 320, the second nut 333 is further tightened by rotating, and the second nut 333 can abut against the first nut 331, so as to ensure that the fastening bolt 332 can firmly abut against the pull rod 320, improve the stability of the connection, avoid loosening between the pull rod 320 and the fastening bolt 332, and improve the reliability of the cooling device.

Claims

1. A cooling device comprising: An air blower (100), wherein a cold air outlet (121) of the air blower (100) is configured to provide cooling air; A main air duct (200), the main air duct (200) being connected to the cold air outlet (121), the main air duct (200) being provided with a plurality of cluster-level air inlets (210) corresponding one-to-one to the plurality of battery clusters (10), and cooling air being able to enter the battery clusters (10) from the cluster-level air inlets (210) and cool the battery clusters (10); A plurality of adjustment components (300), wherein the adjustment components (300) are respectively covered on the cluster-level air inlets (210), and the adjustment components (300) are capable of adjusting the opening of the cluster-level air inlets (210).

2. The cooling device according to claim 1, wherein: The regulating assembly (300) comprises a windshield (310) and a regulating structure, wherein the windshield (310) is provided to cover the cluster-level air inlet (210), the regulating structure is connected to the main air duct (200), and the output end of the regulating structure is connected to the windshield (310) so that the windshield (310) moves at the cluster-level air inlet (210) and changes the opening of the cluster-level air inlet (210).

3. The cooling device according to claim 2, wherein: The adjustment structure includes a draw rod (320), the draw rod (320) is slidably connected to the bottom wall of the main air duct (200), a first end of the draw rod (320) extends out of the side wall of the main air duct (200), and a second end of the draw rod (320) is fixedly connected to the wind shield (310).

4. The cooling device according to claim 3, wherein: A fixing frame (330) is provided on a side wall of one end of the main air duct (200) away from the wind shield (310), and a first nut (331) is fixed to the fixing frame (330). The first nut (331) is threadedly connected to a fastening bolt (332), and the fastening bolt (332) can sequentially pass through the first nut (331) and the fixing frame (330) and abut against the draw rod (320).

5. The cooling device according to claim 4, wherein: The draw rod (320) is provided with a slide groove (321), the notch of the slide groove (321) faces the bottom wall of the main air duct (200), and the bottom of the fastening bolt (332) can abut against the inner bottom wall of the slide groove (321).

6. The cooling device according to claim 4, wherein: The bottom wall of the main air duct (200) is provided with a fixing bracket (340), and the bottom of the fixing bracket (330) is also fixed with a supporting bracket (334); the pulling rod (320) is commonly provided between the bottom wall of the main air duct (200) and the fixing bracket (340), and between the supporting bracket (334) and the fixing bracket (330) and is slidably connected.

7. The cooling device according to claim 4, wherein: A second nut (333) is threadedly connected between the head of the fastening bolt (332) and the first nut (331).

8. The cooling device according to any one of claims 2 to 7, wherein: A guide plate (211) is provided on the bottom wall of the main air duct (200) and located at the cluster-level air inlet (210), and the guide plate (211) is provided with a plurality of guide holes (212); an avoidance hole (213) is provided at the connection between the guide plate (211) and the bottom wall of the main air duct (200), and the wind shield (310) can be accommodated in the avoidance hole (213).

9. The cooling device according to any one of claims 1 to 7, wherein: The air supply device (100) comprises an air conditioner (110) and an air supply duct (120) arranged on the top of the air conditioner (110), the cold air outlet (121) is provided on the side wall of the air supply duct (120), and the air supply duct (120) is arranged at the same height as the main duct (200).

10. An energy storage container system, comprising a cooling device according to any one of claims 1 to 9 and a plurality of battery clusters (10), wherein the battery clusters (10) are arranged in a one-to-one correspondence at the cluster-level air inlets (210).

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