Cooling device and energy storage container system

Abstract

The utility model belongs to the technical field of energy storage batteries, and discloses a cooling device and an energy storage container system. The cooling device comprises an air supply device, a main air duct and a plurality of adjusting assemblies. A cold air outlet of the air supply device is used for providing cooling air. The main air duct is communicated with the cold air outlet and is provided with a plurality of cluster-grade air inlets corresponding to the plurality of battery clusters one by one, and cooling air can enter the battery clusters from the cluster-grade air inlets and cool the battery clusters; the adjusting assemblies cover the cluster-grade air inlets in a one-to-one correspondence mode, and the adjusting assemblies can adjust the opening degree of the cluster-grade air inlets. The cooling device can adjust the volume of air blown into the battery clusters according to requirements, ensures the same heat dissipation effect between the battery clusters, improves the temperature uniformity of the battery clusters, improves the heat dissipation effect, and prolongs the service life of the battery clusters.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage batteries, and in particular to a cooling device and an energy storage container system. Background Art

[0002] With economic development, electricity storage will become an important form of energy storage in the future energy system, and it is necessary to introduce energy storage as a new source of regulation capacity to regulate the power system. Large-capacity energy storage devices are mostly used on the power generation side and the power storage side. They generally adopt containerized energy storage systems. Containerized energy storage systems have the advantages of high capacity, high reliability, high flexibility, and strong environmental adaptability. However, due to the high energy density and large number of batteries in the energy storage container, the heat generated is relatively large. Therefore, thermal management is one of the most critical technologies of the entire containerized battery energy storage system. Commonly used heat dissipation cooling methods include air cooling, liquid cooling, and phase change cooling.

[0003] At present, energy storage containers are equipped with multiple battery clusters, and air cooling is used to dissipate heat for the multiple battery clusters. At the same time, the container is equipped with air conditioners and air ducts. However, the battery clusters closer to the air outlet of the air conditioner are blown with a larger amount of air, so the heat dissipation effect is better, while the battery clusters farther from the air outlet are blown with a smaller amount of air, resulting in poor heat dissipation effect for the battery clusters at the far end. That is, the energy storage container cooling system in the prior art has the defect of uneven heat dissipation effect of the air duct, resulting in a large difference in the heat dissipation effect of the arranged battery cluster group at the far end and the near end, which not only affects the overall heat dissipation effect of the energy storage container, but also causes a large temperature difference in the battery cells in the system, resulting in a decrease in the overall life of the energy storage system.

[0004] Therefore, there is an urgent need to provide a new cooling device and energy storage container system to solve the above-mentioned technical problems in the prior art. Utility Model Content

[0005] The utility model aims to provide a cooling device, which can adjust the air volume blown into the battery cluster according to demand, ensure the same heat dissipation effect between each group of battery clusters, improve the temperature uniformity of multiple groups of battery clusters, improve the heat dissipation effect, and extend the service life of the battery cluster.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The cooling device includes an air blower, a main air duct and a plurality of adjustment components, the cold air outlet of the air blower is used to provide cooling air; the main air duct is connected to the cold air outlet, and the main air duct is provided with a plurality of cluster-level air inlets corresponding to a plurality of battery clusters, and cooling air can enter the battery clusters from the cluster-level air inlets and cool the battery clusters; the adjustment components are covered on the cluster-level air inlets in a one-to-one manner, and the adjustment components can adjust the opening of the cluster-level air inlets.

[0008] Optionally, the above-mentioned adjustment component includes a wind shield and an adjustment structure, the above-mentioned wind shield cover is arranged on the above-mentioned cluster-level air inlet, the above-mentioned adjustment structure is connected to the above-mentioned main air duct, and the output end of the above-mentioned adjustment structure is connected to the above-mentioned wind shield, so that the above-mentioned wind shield moves at the above-mentioned cluster-level air inlet and changes the opening of the above-mentioned cluster-level air inlet.

[0009] Optionally, the adjustment structure includes a draw rod, which is slidably connected to the bottom wall of the main air duct, one end of the draw rod extends out of the side wall of the main air duct, and the other end is fixedly connected to the wind shield plate.

[0010] Optionally, a fixing frame is provided on the side wall of one end of the main air duct away from the wind shield plate, the fixing frame is fixed with a first nut, the first nut is threadedly connected with a fastening bolt, and the fastening bolt can sequentially pass through the first nut and the fixing frame and abut against the pull-out rod.

[0011] Optionally, the draw rod is provided with a slide groove, the notch of the slide groove faces the bottom wall of the main air duct, and the bottom of the fastening bolt can abut against the inner bottom wall of the slide groove.

[0012] Optionally, the bottom wall of the main air duct is provided with a fixed bracket, and a support bracket is also fixed to the bottom of the fixed bracket. The pull-out rod is penetrated and slidably connected between the bottom wall of the main air duct and the fixed bracket, and between the support bracket and the fixed bracket.

[0013] Optionally, a second nut is threadedly connected between the head of the fastening bolt and the first nut.

[0014] Optionally, the air supply device includes an air conditioner and an air supply duct arranged on the top of the air conditioner, the cold air outlet is opened on the side wall of the air supply duct, and the air supply duct is arranged at the same height as the main duct.

[0015] Optionally, a guide plate is provided on the bottom wall of the main air duct and at the cluster-level air inlet, and a plurality of guide holes are provided on the guide plate; an avoidance hole is provided at the connection between the guide plate and the bottom wall of the main air duct, and the wind shield can be accommodated in the avoidance hole.

[0016] Another object of the utility model is to provide an energy storage container system, which includes a cooling device as described in any of the above schemes and a plurality of battery clusters, wherein the battery clusters are arranged one by one at the cluster-level air inlets. The energy storage container system can change the air intake of each cluster-level air inlet to meet the cooling air volume requirements of different battery clusters and achieve uniform heat dissipation effect, thereby improving the temperature uniformity of the energy storage container system, improving the heat dissipation effect, and extending the service life of the battery clusters of the energy storage container system.

[0017] Beneficial effects:

[0018] In the cooling device of the present utility model, a blower is used to provide cooling air for cooling the battery clusters. The cooling air first discharges from the cold air outlet and enters the main air duct. The main air duct is provided with a number of cluster-level air inlets. Through the cluster-level air inlets, the cooling air is distributed and discharged into the corresponding battery clusters respectively, so as to cool the battery clusters. And the cluster-level air inlets are provided with adjusting components, and the adjusting components can adjust the opening degree of the cluster-level air inlets, so as to adjust the air intake of each battery cluster, so that the cooling air can be evenly distributed to each battery cluster, meet the cold air volume requirements of different battery clusters, achieve the unity 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. Description of the drawings

[0019] Figure 1 is an axonometric view of the energy storage container system provided by the specific embodiment of the present utility model with the battery hidden;

[0020] Figure 2 is an axonometric view of the cooling device provided by the specific embodiment of the present utility model with some structures hidden;

[0021] Figure 3 is an axonometric view of the adjusting component provided by the specific embodiment of the present utility model.

[0022] In the figure:

[0023] 10. Battery cluster;

[0024] 100. Blower; 110. Air conditioner; 120. Air supply duct; 121. Cold air outlet;

[0025] 200. Main air duct; 210. Cluster-level air inlet; 211. Deflector; 212. Deflection hole;

[0026] 300. Adjusting component; 310. Windshield; 320. Pull rod; 321. Slide groove; 330. Fixed frame; 331. First nut; 332. Fastening bolt; 333. Second nut; 334. Support frame; 340. Fixed support. Specific embodiments

[0027] The present utility model will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the sake of description, only parts related to the present utility model are shown in the drawings, rather than all the structures.

[0028] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0030] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0031] Please refer to Figure 1 , in this embodiment, a energy storage container system is first provided. The energy storage container system includes the cooling device described below and several battery clusters 10. The above battery clusters 10 are arranged in one-to-one correspondence with the cluster-level air inlets 210 of the following cooling device. The cooling device used in the energy storage container system is provided with cluster-level air inlets 210 corresponding to the battery clusters 10 one by one. Each cluster-level air inlet 210 is provided with an adjusting component 300. The adjusting component 300 is used to adjust the opening degree of the cluster-level air inlet 210, so as to change the air intake volume of each cluster-level air inlet 210, meet the cold air volume requirements of different battery clusters 10, achieve the unity 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 10 of the energy storage container system.

[0032] Please continue to refer to Figure 1 and Figure 2, the cooling device includes a blower 100, a main air duct 200, and a plurality of adjustment components 300. The cold air outlet 121 of the blower 100 is used to provide cooling air; the main air duct 200 is communicatively connected to the cold air outlet 121, and the main air duct 200 is provided with a plurality of cluster-level air inlets 210 corresponding to a plurality of battery clusters 10 one by one. The cooling air can enter the battery cluster 10 from the cluster-level air inlet 210 and cool the battery cluster 10; the adjustment components 300 are respectively covered on the cluster-level air inlets 210, and the adjustment components 300 can adjust the opening degree of the cluster-level air inlets 210.

[0033] In this embodiment, the cooling device uses the blower 100 to provide cooling air for cooling the battery cluster 10. The cooling air first discharges from the cold air outlet 121 and enters the main air duct 200. The main air duct 200 is provided with a plurality of cluster-level air inlets 210. Through the cluster-level air inlets 210, the cooling air is distributed and discharged into the corresponding battery cluster 10 respectively, so as to cool the battery cluster 10; and the cluster-level air inlets 210 are provided with adjustment components 300, and the adjustment components 300 can adjust the opening degree of the cluster-level air inlets 210, so as to adjust the air intake volume of each battery cluster 10, so that the cooling air can be evenly distributed to each battery cluster 10, meet the cold air volume requirements of different battery clusters 10, realize the unity of the heat dissipation effect, thereby improving the temperature uniformity of the energy storage container system using this cooling device, improving the heat dissipation effect, and prolonging the service life of the battery cluster 10.

[0034] In this embodiment, the main air duct 200 is in a cuboid shape, 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 inlet 210 near the cold air outlet 121 is relatively large, while the cooling air pressure of the cluster-level air inlet 210 far from the cold air outlet 121 is relatively small. Therefore, along the direction away from the cold air outlet 121, the opening degrees of the plurality of cluster-level air inlets 210 can be set to gradually increase, so that the air volume of the cooling air entering each battery cluster 10 is the same, realizing the same cooling effect, improving the cooling effect of the battery cluster 10 at the far end, and further prolonging the service life.

[0035] Please continue to refer to Figure 2, optionally, the above air blower 100 includes an air conditioner 110 and an air supply duct 120 disposed on the top of the air conditioner 110. The side wall of the air supply duct 120 is provided with the cold air outlet 121, and the air supply duct 120 is arranged at the same height as the main duct 200. The air conditioner 110 sends cold air to the air supply duct 120 at the top and transmits it to the main duct 200. Since the density of cold air is greater than that of hot air, the cooling air can enter the cluster inlet 210 under the action of gravity, realizing the cooling of the battery cluster 10, and the cooling effect is better. At the same time, the air supply duct 120 is arranged at the same height as the main duct 200, and the battery cluster 10 is arranged below the main duct 200, so that the energy storage container formed by the cooling device and the battery cluster 10 has a cuboid shape with a consistent appearance, improving the aesthetic degree of the appearance and reducing the space occupancy rate of the cooling device and the energy storage container system.

[0036] As Figure 3 shown, the above adjustment component 300 includes a wind baffle 310 and an adjustment structure. The wind baffle 310 covers the cluster inlet 210, the adjustment structure is connected to the main duct 200, and the output end of the adjustment structure is connected to the wind baffle 310, so that the wind baffle 310 moves at the cluster inlet 210 and changes the opening degree of the cluster inlet 210. The adjustment structure can be selected as a driving member such as a motor or a driving cylinder, or the wind baffle 310 can be pulled manually, so that the wind baffle 310 is driven to move at the cluster inlet 210, realizing the blocking, full opening and opening degree adjustment of the cluster inlet 210 by the wind baffle 310, thereby changing the air intake volume of the cluster inlet 210, and the adjustment method is simple and reliable.

[0037] In this embodiment, the adjustment structure includes a draw rod 320. The draw rod 320 is slidably connected to the bottom wall of the main duct 200. One end of the draw rod 320 extends out of the side wall of the main duct 200, and the other end is fixedly connected to the wind baffle 310. By using the way that the draw rod 320 is slidably connected to the bottom wall of the main duct 200, the operator can manually pull the draw rod 320 to move, driving the wind baffle 310 to adjust the opening degree of the cluster inlet 210. The manual method has a lower cost and a more reliable working method, and can reduce the manufacturing cost and maintenance cost of the cooling device.

[0038] Further, please refer to Figure 2 and Figure 3, a flow deflector 211 is provided on the bottom wall of the main air duct 200 and at the cluster-level air inlet 210, and a plurality of flow guide holes 212 are formed in the flow deflector 211; an avoidance hole is formed at the connection between the flow deflector 211 and the bottom wall of the main air duct 200, and the wind deflector 310 of the adjustment assembly 300 can be received into the avoidance hole. The flow deflector 211 is used to direct the cooling air discharged from the cluster-level air inlet 210, so that the cooling air blows vertically downward into the battery cluster 10, and the flow guide holes 212 disperse and evenly distribute the cooling air, so that the cooling air is blown to every corner in 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.

[0039] Further, a fixing bracket 330 is provided on the side wall of one end of the main air duct 200 away from the wind deflector 310. A first nut 331 is fixedly provided on the fixing bracket 330. The first nut 331 is threadedly connected with a fastening bolt 332. The fastening bolt 332 can sequentially pass through the first nut 331 and the fixing bracket 330 and abut against the push rod 320. The fastening bolt 332 is threadedly connected to the first nut 331, so as to tighten the fastening bolt 332 against the push rod 320, realizing the fixation of the position of the push rod 320, avoiding the position change of the wind deflector 310 due to standing outside the cluster-level air inlet 210, ensuring the stability and constancy of the air intake volume of each battery cluster 10, and keeping the heat dissipation effect of the battery cluster 10 unchanged.

[0040] Please continue to refer to Figure 3 , a chute 321 is provided on the push rod 320, the notch of the chute 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 chute 321. The setting of the chute 321 can not only avoid the bottom of the fastening bolt 332, but also extend the stroke of the fastening bolt 332, and can form a better fixing effect on the push rod 320, further avoiding the position change of the wind deflector 310.

[0041] In this embodiment, a fixing bracket 340 is provided on the bottom wall of the main air duct 200, and a support frame 334 is also fixedly provided at the bottom of the fixing bracket 330. The push rod 320 is jointly passed through and slidably connected between the bottom wall of the main air duct 200 and the fixing bracket 340, and between the support frame 334 and the fixing bracket 330. The push rod 320 is slidably connected to the support frame 334 and the fixing bracket 340, which not only has a simple structure and a light weight, but also has a small contact area, can reduce the friction force when the push rod 320 slides, and is more convenient for the operator to operate.

[0042] Further, a second nut 333 is also threadedly connected between the head of the fastening bolt 332 and the first nut 331. After the fastening bolt 332 and the first nut 331 are tightened and abutted against the draw bar 320, the second nut 333 is rotated and tightened. 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 draw bar 320, improve the connection stability, avoid loosening between the draw bar 320 and the fastening bolt 332, and further improve the reliability of the cooling device.

[0043] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A cooling device, characterized in that: include: An air blower (100), wherein a cold air outlet (121) of the air blower (100) is used to provide cooling air; A main air duct (200), the main air duct (200) being arranged in communication with 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 can enter the battery cluster (10) from the cluster-level air inlets (210) to cool the battery cluster (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, characterized in that: The regulating component (300) comprises a wind shield (310) and a regulating structure, wherein the wind shield (310) is arranged 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 wind shield (310) so that the wind shield (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, characterized in that: The adjustment structure comprises a pull-out rod (320), wherein the pull-out rod (320) is slidably connected to the bottom wall of the main air duct (200), one end of the pull-out rod (320) extends out of the side wall of the main air duct (200), and the other end is fixedly connected to the wind shield plate (310).

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

5. The cooling device according to claim 4, characterized in that: 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, characterized in that: The bottom wall of the main air duct (200) is provided with a fixed bracket (340), and the bottom of the fixed bracket (330) is also fixedly provided with a support bracket (334); the draw rod (320) is penetrated and slidably connected between the bottom wall of the main air duct (200) and the fixed bracket (340), and between the support bracket (334) and the fixed bracket (330).

7. The cooling device according to claim 4, characterized in that: 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, characterized in that: 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 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.

9. The cooling device according to any one of claims 1 to 7, characterized in that: 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 side wall of the air supply duct (120) is provided with the cold air outlet (121), and the air supply duct (120) is arranged at the same height as the main duct (200).

10. Energy storage container system, characterized in that: It comprises a cooling device as claimed in 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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