Energy storage container

Abstract

The utility model provides an energy storage container which comprises a container body, the container body comprises a top cover and a bottom cover which are oppositely arranged, and a plurality of battery clusters are arranged in the container body; the length of the dehumidifier and the width of the dehumidifier are both larger than the thickness of the dehumidifier, the dehumidifier is arranged between the bottoms of the multiple battery clusters and the bottom cover, and the thickness direction of the dehumidifier coincides with the height direction of the box body.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage, and particularly relates to an energy storage container. Background Art

[0002] Energy storage containers usually need to work outdoors. The battery modules and other electrical equipment inside the energy storage containers are affected by the humid environment, and are prone to moisture absorption, which affects their normal operation and even corrodes, thus affecting their service life.

[0003] In the related art, the dehumidification solution for a 20-foot 5MWH liquid-cooled energy storage container includes setting 1-2 compressor air conditioners for dehumidification. Since the compressor air conditioners are huge in volume, the compressor air conditioners are usually directly fixed on the side plates of the energy storage container, thus occupying a large amount of space in the length and width directions of the energy storage container. Therefore, using large-volume compressor air conditioners for dehumidification on high-energy density energy storage containers will cause the size design of the container to exceed the standard and there will be an uneven dehumidification effect. Summary of the Utility Model

[0004] The embodiment of the utility model provides an energy storage container, which can improve the technical problem that the size design of the energy storage container exceeds the standard due to the arrangement of a large-size dehumidifier inside the energy storage container.

[0005] In a first aspect, the embodiment of the utility model provides an energy storage container, comprising:

[0006] A box body, the box body includes a top cover and a bottom cover arranged oppositely, and a plurality of battery clusters are arranged inside the box body;

[0007] A dehumidifier, the length and width of the dehumidifier are both greater than the thickness of the dehumidifier, the dehumidifier is arranged between the bottoms of the plurality of battery clusters and the bottom cover, and the thickness direction of the dehumidifier coincides with the height direction of the box body.

[0008] In one embodiment, a plurality of the dehumidifiers are arranged at intervals inside the box body, and each dehumidifier is arranged corresponding to at least one of the battery clusters.

[0009] In one embodiment, the number of the dehumidifiers arranged inside the box body is n, n = 24 * Q * V / (t * C), where Q is the amount of water vapor contained in each kilogram of dry air inside the box body, V is the air volume inside the box body, t is the dehumidification time, and C is the dehumidification capacity of each dehumidifier.

[0010] In one embodiment, the ratio of the number n of the dehumidifiers provided inside the box body to the number m of the battery clusters is not less than 1 / 3, and the dehumidifying capacity C of each dehumidifier is set to 500 ml / 24 h to 1000 ml / 24 h, and / or the dehumidifying time t is set to 1 h to 4 h.

[0011] In one embodiment, the bottom cover is provided with a plurality of drain grooves arranged at intervals, the dehumidifier is provided with a water outlet, and the water outlet is located above the drain groove.

[0012] In one embodiment, each battery cluster is correspondingly provided with one of the drain grooves, the box body includes a left side plate and a right side plate connected between the top cover and the bottom cover, the drain groove includes a first drain groove arranged close to the left side plate and a second drain groove arranged close to the right side plate, the dehumidifier includes a first group of dehumidifiers and a second group of dehumidifiers arranged at intervals, the first group of dehumidifiers is arranged corresponding to the first drain groove, and the second group of dehumidifiers is arranged corresponding to the second drain groove.

[0013] In one embodiment, the dehumidifier is arranged above the drain groove, and the length or width of the dehumidifier is greater than the width of the drain groove.

[0014] In one embodiment, at least one drain port is provided at the bottom of the drain groove, a drain pipe is connected to the dehumidifier, and one end of the drain pipe extends to the drain port.

[0015] In one embodiment, a first bracket and a second bracket are further included, the dehumidifier is fixed to the bottom cover through the first bracket and the second bracket, and the first bracket and the second bracket are respectively fixed on both sides of the dehumidifier.

[0016] In one embodiment, a high-voltage box is further included, and the battery clusters, the high-voltage box, and the dehumidifier are sequentially arranged along the height direction of the box body.

[0017] Advantageous effects of the embodiments of the present utility model:

[0018] In the embodiments of the present utility model, by arranging the dehumidifier in the space between the bottom of the battery cluster and the bottom cover, and arranging the thickness direction with a smaller size of the dehumidifier to coincide with the height direction of the box body, the space occupied by the dehumidifier inside the box body as a whole is smaller, thereby effectively improving the situation that the size design of the energy storage container exceeds the standard due to the arrangement of the dehumidifier. Description of the drawings

[0019] To more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 is a three-dimensional view of a dehumidifier arranged inside an energy storage container provided by an embodiment of the present utility model;

[0021] Figure 2 is Figure 1 a partial enlarged view of;

[0022] Figure 3 is Figure 2 a partial enlarged view of;

[0023] Figure 4 is an internal structure diagram of a box body provided by an embodiment of the present utility model;

[0024] Figure 5 is Figure 4 a partial enlarged view of;

[0025] Figure 6 is a top view structural schematic diagram of a dehumidifier arranged inside an energy storage container provided by an embodiment of the present utility model;

[0026] Figure 7 is a front view structural schematic diagram of a dehumidifier arranged inside an energy storage container provided by an embodiment of the present utility model;

[0027] Figure 8 is a three-dimensional view of a dehumidifier and its bracket provided by an embodiment of the present utility model;

[0028] Figure 9 is a front view of a dehumidifier provided by an embodiment of the present utility model;

[0029] Figure 10 is a top view of a dehumidifier provided by an embodiment of the present utility model;

[0030] Explanation of the reference numerals in the drawings:

[0031] 1. Energy storage container; 10. Box body; 11. Top cover; 12. Bottom cover; 13. Left side plate; 14. Right side plate; 15. Battery compartment; 16. Liquid cooling compartment; 17. Electrical compartment; 20. Battery cluster; 21. Battery module; 30. Dehumidifier; 31. First group of dehumidifiers; 32. Second group of dehumidifiers; 331. First bracket; 332. Second bracket; 34. Drainage trough; 35. Drainage port; 36. Water outlet; 40. High-voltage box; Detailed implementation manners

[0032] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present utility model. In addition, it should be understood that the specific implementation manners described herein are only used to illustrate and explain the present utility model, and are not used to limit the present utility model. In the present utility model, unless otherwise stated, the orientation words such as "upper" and "lower" usually refer to the upper and lower in the actual use or working state of the device, specifically the drawing direction in the accompanying drawings; and "inner" and "outer" refer to the outline of the device.

[0033] Energy storage containers usually need to be exposed outdoors for operation. The battery modules and other electrical equipment inside the energy storage containers are affected by the humid environment, are prone to moisture absorption, which affects their normal operation, and may even be corroded, thus affecting their service life.

[0034] In the related art, the dehumidification solutions for 20-foot 5MWH liquid-cooled energy storage containers include setting up a compressor air conditioner or a coil dehumidifier for dehumidification. Among them, due to the large volume of the compressor air conditioner, its application on high-energy-density energy storage containers will lead to an over-standard size design of the container and uneven dehumidification effect; the coil dehumidifier usually needs to be connected in series with the pipeline of the liquid chiller, resulting in poor low-temperature dehumidification effect of the coil dehumidifier and the coil dehumidifier not having dehumidification ability when the liquid chiller is not working.

[0035] The compressor air conditioner dehumidifier or the coil dehumidifier is usually directly fixed on the side plate of the box body, and due to its large volume, the compressor air conditioner dehumidifier or the coil dehumidifier occupies a large amount of space in the length or width direction of the box body, resulting in an over-standard size design of the energy storage container.

[0036] In the embodiments of the present utility model, by improving the layout scheme of the dehumidifier inside the energy storage container, it is beneficial to improve the technical problem that the over-standard size design of the container is caused by arranging a large-size dehumidifier inside the energy storage container.

[0037] Reference Figures 1 to 5, an embodiment of the present utility model is an energy storage container 1, which includes a box body 10. The box body 10 includes a top cover 11 and a bottom cover 12 arranged opposite to each other. A plurality of battery clusters 20 are arranged inside the box body 10, and at least one dehumidifier 30 is also arranged inside the box body 10. The box body 10 includes a length direction X, a width direction Y, and a height direction Z that are perpendicular to each other. The dehumidifier 30 includes a length direction A, a width direction B, and a thickness direction C that are perpendicular to each other. The dehumidifier 30 has a length extending along its length direction A, a width extending along its width direction B, and a thickness extending along its thickness direction C. The length and width of the dehumidifier 30 are both greater than its thickness. The dehumidifier 30 is arranged in the space between the bottom of the plurality of battery clusters 20 and the bottom cover 12, and the thickness direction of the dehumidifier 30 coincides with the height direction of the box body 10.

[0038] By arranging the dehumidifier 30 in the space between the bottom of the battery cluster 20 and the bottom cover 12, and making the smaller thickness direction of the dehumidifier 30 coincide with the height direction of the box body 10, the space inside the box body 10 occupied by the dehumidifier 30 can be effectively reduced. On the one hand, more battery modules 21 can be arranged in the space in the height direction of the energy storage container 1, thereby improving the space utilization rate in the height direction of the energy storage container 1; on the other hand, the inventor found that by arranging the above-mentioned dehumidifier 30 horizontally inside the box body 10, the situation that the size of the container exceeds the standard due to the arrangement of a large dehumidifier 30 can be effectively improved.

[0039] Further referring to Figures 1 to 4 As shown, a plurality of the dehumidifiers 30 are arranged at intervals inside the box body 10. A plurality of battery clusters 20 are arranged inside the box body 10, and each dehumidifier 30 is arranged corresponding to at least one of the battery clusters 20.

[0040] By configuring a plurality of dehumidifiers 30 inside the energy storage container 1, on the one hand, the volume of a single dehumidifier 30 can be reduced, which is beneficial to further reducing the space in the height direction of the box body 10 required for placing the dehumidifier 30; on the second hand, when a plurality of small dehumidifiers 30 are configured inside the box body 10, compared with configuring a large dehumidifier 30 inside the box body 10, the arrangement positions and arrangement methods of the plurality of small dehumidifiers 30 are more flexible; on the third hand, when a plurality of dehumidifiers 30 are arranged at intervals inside the box body 10, and each dehumidifier 30 is arranged corresponding to at least one of the battery clusters 20, the plurality of dehumidifiers 30 can be evenly arranged at intervals according to the arrangement of the plurality of battery clusters 20, so that the plurality of dehumidifiers 30 have a uniform dehumidification effect inside the box body 10.

[0041] The battery cluster 20 is configured as a plurality of battery modules 21 stacked in the height direction of the box body 10. The plurality of battery modules 21 are connected in series, in parallel or in a hybrid connection to form a battery cluster 20 with a certain voltage and capacity, thereby meeting the capacity design requirements of the energy storage container 1.

[0042] In order to enable a plurality of dehumidifiers 30 to complete dehumidification within the required dehumidification time, the inventor found through research that the number n of dehumidifiers 30 arranged inside the box body 10 satisfies: n = 24 * Q * V / (t * C), where C is the dehumidification capacity of each dehumidifier, Q is the amount of water vapor contained in each kilogram of dry air inside the box body 10, V is the air volume inside the box body 10, and t is the dehumidification time.

[0043] Expressed in terms of the dehumidification amount in 24 hours, the unit of C is set to ml / 24h. The dehumidification capacity C of the dehumidifier 30 suitable for use in the energy storage container 1 is set to 500 ml / 24h to 1000 ml / 24h. In a specific implementation, the dehumidification capacity of the dehumidifier 30 can be 500 ml / 24h, 600 ml / 24h, 700 ml / 24h, 800 ml / 24h, 900 ml / 24h, 1000 ml / 24h, and values between any two of the above, or a range between any two of the above values.

[0044] The unit of Q is set to g / kg dry air. Q is mainly affected by factors such as the temperature inside the box body 10 and the relative ambient humidity, so it is not specifically limited here. It should be noted that when the amount of water vapor contained in each kilogram of dry air inside the box body 10 is greater than a certain value, the dehumidifier 30 starts to be used. After the dehumidifier 30 is turned on for a certain time, the amount of water vapor Q contained in each kilogram of dry air inside the box body 10 is reduced to below the specified value.

[0045] The unit of V is dm 3 , it should be noted that V represents the remaining space inside the box body 10 after removing the space occupied by the plurality of battery clusters and other equipment inside the box body. This remaining space is filled with air.

[0046] The unit of t is set to h. The common dehumidification time t required inside the energy storage container 1 is 1h to 4h. In a specific implementation, the dehumidification time t commonly used in the energy storage container 1 is set to 1h, 2h, 4h, and values between any two of the above, or a range between any two of the above values.

[0047] Taking the 20-foot 5MWH liquid-cooled energy storage container as an example, the ratio of the number n of the dehumidifiers arranged inside the box body to the number m of the battery clusters is not less than 1 / 3, where the dehumidifying capacity C of each dehumidifier is set to 500ml / 24h to 1000ml / 24h, and / or the dehumidifying time t is set to 1h to 4h.

[0048] It can be understood that if the ratio of the number n of the dehumidifiers arranged inside the energy storage container 1 to the number m of the battery clusters is less than 1 / 3, the set number n of the dehumidifiers cannot meet the dehumidifying effect of the energy storage container 1 within the specified dehumidifying time. Under the condition that the internal space of the box body 10 permits, as many dehumidifiers 30 as possible are arranged inside the box body 10, which can further improve the dehumidifying effect and efficiency of the energy storage container 1. For example, when the dehumidifying capacity of the dehumidifier 30 remains unchanged, 4 dehumidifiers are arranged inside the box body 10, and the dehumidification can be completed within 4h; 16 dehumidifiers are arranged inside the box body, and the dehumidification can be completed within 1h.

[0049] Furthermore, a set of dehumidifiers 30 or one dehumidifier 30 can be correspondingly arranged for each battery cluster 20, where a set of dehumidifiers 30 can include two or more dehumidifiers 30. The appropriate number of dehumidifiers 30 can be arranged inside the energy storage container 1 according to the humidity state of the environment where the energy storage container 1 needs to be applied and the dehumidifying capacity of a single dehumidifier 30.

[0050] The 20-foot 5MWH liquid-cooled energy storage container is the liquid-cooled energy storage system with the highest volume energy density at present. Taking the 20-foot 5MWH liquid-cooled energy storage container as an example, the number of the battery clusters 20 arranged inside the box body 10 is 10 to 12, and the number of the dehumidifiers 30 arranged inside the box body 10 is 4 to 12. In a specific implementation, the number of the dehumidifiers 30 arranged inside the box body 10 can be 4, 5, 6, 7, 8, 9, 10, 11 or 12.

[0051] In a preferred implementation, a dehumidifier 30 is correspondingly arranged at the bottom of each battery cluster 20, so as to balance the dehumidifying effect. If the dehumidifying performance of a single dehumidifier 30 is better, and under the condition that the dehumidifying effect of the energy storage container 1 is sufficient, four dehumidifiers 30 can be arranged at the four corners where the battery compartment 15 of the box body 10 is located, so that the overall box body 10 has a balanced dehumidifying effect.

[0052] As Figures 1 to 4 shown, the box body 10 includes a top cover 11 and a bottom cover 12 which are oppositely arranged, and a plurality of the dehumidifiers 30 are arranged in the interval between the bottom of the plurality of battery clusters 20 and the bottom cover 12.

[0053] The box body 10 further includes a left side plate 13, a right side plate 14, a front side plate and a rear side plate connected between the top cover 11 and the bottom cover 12, wherein the left side plate 13 and the right side plate 14 are arranged oppositely, and the front side plate and the rear side plate are arranged oppositely.

[0054] By arranging a plurality of dehumidifiers 30 in the space between the bottoms of the plurality of battery clusters 20 and the bottom cover 12, it is convenient for the condensed water generated by the dehumidifiers 30 during the dehumidification process to be directly discharged outside through the bottom cover 12, thereby improving the dehumidification effect of the dehumidifiers 30. Compared with arranging the dehumidifiers 30 on any one of the left side plate 13, the rear side plate, the front side plate, and the rear side plate, one end of the dehumidifier 30 needs to be connected to a complex drainage pipeline to discharge the condensed water, and then a complex drainage pipeline needs to be additionally arranged inside the box body 10, thereby increasing the complexity of the internal structure of the energy storage container 1 and further compressing the internal space of the box body 10 occupied by the battery module 21.

[0055] Further referring to Figures 1 to 3 , a plurality of drainage grooves 34 are arranged at intervals on the bottom cover 12, and the drainage grooves 34 are configured to be formed by a part of the bottom cover 12 being recessed. Each dehumidifier 30 is provided with a water outlet 36, and the condensed water inside each dehumidifier 30 is discharged through the water outlet 36. Among them, the water outlet 36 of each dehumidifier 30 is arranged above the drainage groove 34, so that the water inside the dehumidifier 30 can be directly discharged into the drainage groove 34.

[0056] By arranging the water outlet 36 of the dehumidifier 30 corresponding to the drainage groove 34, the condensed water generated by the dehumidifier 30 can directly enter the drainage groove 34, thereby effectively simplifying the structure of the drainage pipeline and being beneficial to improving the dehumidification efficiency and simplifying the internal structure of the energy storage container 1.

[0057] It should be noted that if the dehumidifier 30 is arranged above the drainage groove 34, the corresponding water outlet 36 of the dehumidifier 30 is the water outlet 36 arranged on the body of the dehumidifier 30, and the water inside the dehumidifier 30 can be directly discharged into the drainage groove 34 through its water outlet 36. If the dehumidifier 30 is arranged near the drainage groove 34, the dehumidifier 30 further includes a water outlet pipe, and the water outlet 36 of the water outlet pipe is located above the drainage groove 34, and then the water generated by the dehumidifier 30 is discharged into the drainage groove 34.

[0058] Continuing to refer to Figures 1 to 4 , Figure 6 and Figure 7, each of the battery clusters 20 is correspondingly provided with a drain trough 34. The box body 10 includes a left side plate 13 and a right side plate 14 connected between the top cover 11 and the bottom cover 12. The drain trough 34 includes a first drain trough 34 disposed near the left side plate 13 and a second drain trough 34 disposed near the right side plate 14. The dehumidifier 30 includes a first group of dehumidifiers 31 and a second group of dehumidifiers 32 arranged at intervals. The first group of dehumidifiers 31 is correspondingly disposed with respect to the first drain trough 34, and the second group of dehumidifiers 32 is correspondingly disposed with respect to the second drain trough 34.

[0059] By arranging the first group of dehumidifiers 31 near the left side plate 13 and the second group of dehumidifiers 32 near the right side plate 14, the first group of dehumidifiers 31 and the second group of dehumidifiers 32 can uniformly and quickly absorb the moisture inside the entire box body 10, thereby preventing the electrical equipment installed near the left side plate 13 or the right side plate 14 from being corroded by moisture.

[0060] In a specific implementation, twelve battery clusters 20 are arranged inside the energy storage container 1. Every six battery clusters 20 are arranged at intervals along the length direction of the box body 10, and every two battery clusters 20 are arranged at intervals along the width direction of the box body 10. Correspondingly, six drain troughs 34 are arranged on the bottom cover 12, and each battery cluster 20 is correspondingly provided with a drain trough 34. The first group of dehumidifiers 31 includes two dehumidifiers 30, and the two dehumidifiers 30 are respectively disposed near the front side plate and the rear side plate. The second group of dehumidifiers 32 includes two dehumidifiers 30, and the two dehumidifiers 30 are respectively disposed near the front side plate and the rear side plate. Each drain trough 34 is provided with two drain openings 35, and a total of twelve drain openings 35 are configured for the six drain troughs 34. Each drain opening 35 is correspondingly arranged for one battery cluster 20.

[0061] As Figure 3 and Figure 8 shown, each dehumidifier 30 is configured with two brackets, which are respectively a first bracket 331 and a second bracket 332. The dehumidifier 30 is fixed to the bottom cover 12 through the first bracket 331 and the second bracket 332. The first bracket 331 and the second bracket 332 are respectively fixed on both sides of the drain trough 34, and the dehumidifier 30 is arranged facing the drain trough 34.

[0062] The above humidifier is installed on the bottom cover 12 by means of a first bracket 331 and a second bracket 332. One end of the first bracket 331 is fixed to one side of the dehumidifier 30, and the other end of the first bracket 331 is fixed to the bottom cover 12 on one side of the drainage trough 34. One end of the second bracket 332 is fixed to the other side of the dehumidifier 30, and the other end of the second bracket 332 is fixed to the bottom cover 12 on the other side of the drainage trough 34, so that the dehumidifier 30 is arranged facing the drainage trough 34, facilitating the direct discharge of the condensate generated during the dehumidification process of the dehumidifier 30 into the drainage trough 34, and thus eliminating the need to set up redundant drainage pipeline structures, effectively reducing the internal space of the box body 10 required for arranging the entire dehumidification system.

[0063] Further referring to Figure 6 and Figure 9 , the length or width of the dehumidifier 30 is greater than the width of the drainage trough 34.

[0064] It should be noted that since the length or width of the dehumidifier 30 is greater than the width d of the drainage trough 34, the condensed water flowing out from the bottom of the dehumidifier 30 can completely flow into the drainage trough 34.

[0065] In some embodiments, at least one drainage port 35 is provided at the bottom of the drainage trough 34, and a drainage pipe is connected to the dehumidifier 30, and the end of the drainage pipe extends to the drainage port 35.

[0066] When the interval between the bottom outlet of the dehumidifier 30 and the drainage trough 34 is relatively large, a drainage pipe can be connected to the bottom outlet of the dehumidifier 30, and this drainage pipe further directly guides the water generated inside the dehumidifier 30 to the drainage port 35, thereby improving the drainage efficiency.

[0067] As Figure 4 , Figure 5 and Figure 7 shown, the energy storage container 1 further includes a high-voltage box 40, and the battery cluster 20, the high-voltage box 40 and the dehumidifier 30 are sequentially arranged along the height direction of the box body 10.

[0068] In the energy storage container 1, the high-voltage box 40 is set as a sealed box body 10 structure for carrying and distributing high-voltage electrical equipment. High-voltage equipment is installed inside the high-voltage box 40, and this high-voltage electrical equipment is used to manage, distribute and control the high-voltage electrical energy in the energy storage container 1. The high-voltage equipment includes high-voltage switchgear, transformers and protection devices, etc. A dehumidifier 30 is arranged at the bottom of the high-voltage box 40, which can effectively prevent the high-voltage equipment inside the high-voltage box 40 from working unstably due to moisture.

[0069] By arranging the battery clusters 20, the high-voltage box 40, and the dehumidifier 30 in sequence along the height direction of the box body 10, the height space inside the box body 10 can be fully utilized, and it is possible to avoid setting up a separate equipment compartment along the length direction of the box body 10 for placing the above-mentioned high-voltage box 40 and the dehumidifier 30, thereby improving the space utilization rate in the length direction of the box body 10.

[0070] It should be noted that by arranging the dehumidifier 30 below the high-voltage box 40, when the fan inside the dehumidifier 30 is running, it can take away the heat generated by the components inside the high-voltage box 40, thereby making the temperature inside the box body 10 more uniform.

[0071] Further referring to Figure 9 and Figure 10 As shown, the length of the dehumidifier 30 is set to be 200 mm to 300 mm; and / or, the width of the dehumidifier 30 is set to be 100 mm to 200 mm; and / or, the thickness of the dehumidifier 30 is set to be 20 mm to 80 mm.

[0072] Multiple dehumidifiers 30 can be set to the same size and specification, or according to the different arrangement positions of the dehumidifiers 30, a part of the dehumidifiers 30 can be configured with one size and specification, and the other part of the dehumidifiers 30 can be configured with another size and specification. For example, in one example, the size of each dehumidifier 30 is set to 300 mm * 130 mm * 50 mm.

[0073] The length L of each dehumidifier 30 can be set to 200 mm, 210 mm, 220 mm, 230 mm, 240 mm, 250 mm, 260 mm, 270 mm, 280 mm, 290 mm, 300 mm, and the values between any two of the above or the range between any two of the above values. The width W of each dehumidifier 30 can be set to 100 mm, 110 mm, 120 mm, 130 mm, 140 mm, 150 mm, 160 mm, 170 mm, 180 mm, 190 mm, 200 mm, and the values between any two of the above or the range between any two of the above values. The thickness h of each dehumidifier 30 can be set to 20 mm, 30 mm, 40 mm, 50 mm, 60 mm, 70 mm, 80 mm, and the values between any two of the above or the range between any two of the above values.

[0074] Taking a 20-foot 5 MWh liquid-cooled energy storage container as an example, the energy storage container 1 includes a length extending along its length direction X, a width extending along its width direction Y, and a height extending along its height direction Z. The length of the energy storage container 1 is greater than its width, and the width of the energy storage container 1 is greater than its height. A plurality of dehumidifiers 30 are all configured to be horizontally housed inside the box body 10, and the length direction of the dehumidifier 30 coincides with the length direction of the container, the width direction of the dehumidifier 30 coincides with the width direction of the container, and the thickness direction of the dehumidifier 30 coincides with the height direction of the container. A plurality of dehumidifiers 30 are arranged at intervals along the length direction of the energy storage container 1. If the length dimension of each dehumidifier 30 is greater than 300 mm, it will cause the space occupied by the plurality of dehumidifiers 30 in the length direction of the box body 10 to be relatively large, and it is not conducive to maintaining a sufficient interval between adjacent dehumidifiers 30. If the length of each dehumidifier 30 is less than 200 mm, under the condition that the thickness and width of the dehumidifier 30 are limited, it will cause the volume of a single dehumidifier 30 to be relatively small, and then the dehumidification capacity of a single dehumidifier 30 will be insufficient, further affecting the poor dehumidification function inside the energy storage container 1. Further, a plurality of dehumidifiers 30 are arranged at intervals along the width direction of the energy storage container 1. If the width dimension of each dehumidifier 30 is greater than 200 mm, it will cause the space occupied by the plurality of dehumidifiers 30 in the width direction of the box body 10 to be relatively large, and it is not conducive to maintaining a sufficient interval between adjacent dehumidifiers 30. If the width of each dehumidifier 30 is less than 100 mm, under the condition that the length and thickness of the dehumidifier 30 are limited, it will cause the volume of a single dehumidifier 30 to be relatively small, and then the dehumidification capacity of a single dehumidifier 30 will be insufficient, further affecting the poor dehumidification function inside the energy storage container 1. A plurality of dehumidifiers 30 are configured in one layer along the height direction of the energy storage container 1. If the thickness of each dehumidifier 30 is greater than 80 mm, it will cause the space occupied by the dehumidifier 30 in the height direction of the box body 10 to be relatively large. If the thickness of each dehumidifier 30 is less than 20 mm, under the condition that the length and width of the dehumidifier 30 are limited, it will cause the volume of a single dehumidifier 30 to be relatively small, and then the dehumidification capacity of a single dehumidifier 30 will be insufficient, further affecting the poor dehumidification function inside the energy storage container 1.

[0075] Such as Figure 3 And Figure 4As shown, a battery compartment 15, an electrical compartment 17, and a liquid cooling compartment 16 which are separated from each other are provided inside the box body 10. The battery compartment 15 is separated from the electrical compartment 17 or the liquid cooling compartment 16 along the length direction X of the box body 10. The electrical compartment 17 is separated from the liquid cooling compartment 16 along the width direction Y of the box body 10. Multiple battery clusters 20 are placed in the battery compartment 15. The electrical compartment 17 is used to place a busbar cabinet and / or a power distribution cabinet. The liquid cooling compartment 16 is used to place liquid cooling equipment. Among them, the dehumidifier 30 is arranged in the area where the battery compartment 15 is located.

[0076] By separating and arranging the electrical compartment 17, the liquid cooling compartment 16, and the battery compartment 15, it is beneficial to independently control the temperature and humidity of the electrical compartment 17, the liquid cooling compartment 16, and the battery compartment 15. On the one hand, it is beneficial to maintain the operation of electrical equipment such as the busbar cabinet and the power distribution cabinet inside the electrical compartment 17 in a suitable working environment, and improve the stability and reliability of electrical equipment such as the busbar cabinet and the power distribution cabinet. On the other hand, by independently controlling the temperature and humidity of the battery compartment 15, the working environment of the battery clusters 20 can be controlled, and the service life of the battery clusters 20 can be extended.

[0077] In a specific implementation, a partition board is provided inside the box body 10. The partition board includes a longitudinally extending portion and a laterally extending portion. The longitudinally extending portion is used to separate the battery compartment 15 from the electrical compartment 17 or the liquid cooling compartment 16. The laterally extending portion is used to separate the electrical compartment 17 from the liquid cooling compartment 16.

[0078] The embodiments of the present invention have been introduced in detail above. Specific examples are used in this article to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. At the same time, for those skilled in the art, based on the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. An energy storage container, characterized in that: include: A box body, the box body comprising a top cover and a bottom cover arranged opposite to each other, and a plurality of battery clusters are arranged inside the box body; A dehumidifier, wherein the length and the width of the dehumidifier are both greater than the thickness of the dehumidifier, and the dehumidifier is arranged between the bottom of the plurality of battery clusters and the bottom cover, and the thickness direction of the dehumidifier coincides with the height direction of the box.

2. The energy storage container according to claim 1, characterized in that: A plurality of dehumidifiers are arranged at intervals inside the box, and each dehumidifier is arranged corresponding to at least one battery cluster.

3. The energy storage container according to claim 2, characterized in that: The number of the dehumidifiers arranged inside the box is n, n=24*Q*V / (t*C), wherein Q is the amount of water vapor contained in each kilogram of dry air inside the box, V is the air volume inside the box, t is the dehumidification time, and C is the dehumidification capacity of each dehumidifier.

4. The energy storage container according to claim 3, characterized in that: The ratio of the number n of the dehumidifiers arranged inside the box to the number m of the battery clusters is not less than 1 / 3, the dehumidification capacity C of each dehumidifier is set to 500ml / 24h~1000ml / 24h, and / or the dehumidification time t is set to 1h~4h.

5. The energy storage container according to claim 2, characterized in that: The bottom cover is provided with a plurality of drainage grooves arranged at intervals, and the dehumidifier is provided with a water outlet, and the water outlet is located above the drainage grooves.

6. The energy storage container according to claim 5, characterized in that: Each battery cluster is correspondingly provided with a drainage groove, the box body includes a left side plate and a right side plate connected between the top cover and the bottom cover, the drainage groove includes a first drainage groove arranged close to the left side plate and a second drainage groove arranged close to the right side plate, the dehumidifier includes a first group of dehumidifiers and a second group of dehumidifiers arranged at intervals, the first group of dehumidifiers is arranged corresponding to the first drainage grooves, and the second group of dehumidifiers is arranged corresponding to the second drainage grooves.

7. The energy storage container according to claim 6, characterized in that: The dehumidifier is arranged on the drainage groove, and the length or width of the dehumidifier is greater than the width of the drainage groove.

8. The energy storage container according to claim 6, characterized in that: At least one drainage port is arranged at the bottom of the drainage groove, and a drainage pipe is connected to the dehumidifier, and one end of the drainage pipe extends to the drainage port.

9. The energy storage container according to claim 6, characterized in that: It also includes a first bracket and a second bracket, the dehumidifier is fixed on the bottom cover through the first bracket and the second bracket, and the first bracket and the second bracket are respectively fixed on both sides of the dehumidifier.

10. The energy storage container according to any one of claims 1 to 9, characterized in that: It also includes a high-voltage box, and the battery cluster, the high-voltage box and the dehumidifier are sequentially arranged along the height direction of the box.

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