Energy storage container and energy storage system

Abstract

The utility model provides an energy storage container and an energy storage system. The energy storage container comprises a container body. Two bins are adjacently arranged in the box body along the length direction, one bin is a battery bin and is used for accommodating a cluster control box and a plurality of battery packs, and the cluster control box is electrically connected with the plurality of battery packs. And a power distribution cabin is arranged in the other cabin. Two power distribution cabinets are adjacently arranged in the power distribution bin in the width direction of the box body. Wherein one power distribution cabinet is a strong current power distribution cabinet and is electrically connected with the battery pack through a cable bundle, and the other power distribution cabinet is a weak current power distribution cabinet and is electrically connected with the cluster control box through the other cable bundle. In the application, the two power distribution cabinets of the power distribution cabin are isolated from each other, so that interference between strong current and weak current can be avoided. When the weak-current power distribution cabinet is maintained, the strong-current power distribution cabinet can maintain a working state and continuously charge and discharge the battery pack without influencing the operation of the energy storage container. In addition, the two power distribution cabinets can be manufactured and assembled independently, so that the energy storage container can be made into parts, and the assembly efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of energy storage devices, and particularly to an energy storage container and an energy storage system. Background Art

[0002] Under the background of the global increase in the development of new energy technologies, various energy storage-related technologies have been continuously increasing. Among them, the use of containers as a means of energy storage has been widely applied. With the improvement of requirements such as safety and service life, the number of power distribution devices and safety-related devices in energy storage containers has gradually increased. However, the internal space of the energy storage container is limited, and the power distribution devices are uniformly installed in the container, which is not convenient for installation and maintenance. Moreover, as the types of power distribution devices increase, harmonic interference is likely to occur between the power distribution devices during the long-term operation of the battery pack, making maintenance operations difficult. Summary of the Utility Model

[0003] This application provides an energy storage container and an energy storage system to achieve the isolation of strong electricity and weak electricity, so as to avoid interference between the strong wire cable bundle and the weak wire cable bundle.

[0004] In the first aspect, this application provides an energy storage container. The energy storage container includes a box body. Specifically, two compartments are arranged adjacent to each other in the length direction of the box body. One of the two compartments is a battery compartment, which is used to accommodate a cluster control box and a plurality of battery packs. Among them, the cluster control box is electrically connected to the plurality of battery packs and is used to manage the battery packs. The other compartment of the two compartments is provided with a power distribution compartment. In the power distribution compartment, two power distribution cabinets are arranged adjacent to each other in the width direction of the box body. One of the two power distribution cabinets is electrically connected to the cluster control box through a cable bundle, and one of the power distribution cabinets is used to supply power to the plurality of battery packs through the cluster control box. The other of the two power distribution cabinets is electrically connected to the cluster control box through another cable bundle, and the other power distribution cabinet is used to supply power to the cluster control box.

[0005] It can be understood that one of the power distribution cabinets is a strong electricity power distribution cabinet, which is used to charge and discharge the battery packs. The other power distribution cabinet is a weak electricity power distribution cabinet, which is used to supply power to the cluster control box and control the cluster control box. In the energy storage container of this application, the two power distribution cabinets in the power distribution compartment are isolated from each other, which can avoid interference between strong electricity and weak electricity. Moreover, the two power distribution cabinets are arranged adjacent to each other in the width direction of the box body in the power distribution compartment, which is convenient for the staff to directly operate the two power distribution cabinets separately from the side of the box body. Therefore, when maintaining the weak electricity power distribution cabinet, the strong electricity power distribution cabinet can remain in the working state, continuously charging and discharging the battery packs, without affecting the operation of the energy storage container. In addition, the two power distribution cabinets can be independently manufactured and assembled, which is beneficial to the componentization of the energy storage container and improves the assembly efficiency.

[0006] In one possible implementation, two cable troughs are provided in the battery compartment. The two cable troughs are located at the bottom of the battery compartment and extend respectively along the length direction of the box body, that is, the two cable troughs are arranged in parallel. Of the two cable troughs, one cable trough is used to accommodate the above-mentioned one cable bundle, and the other cable trough is used to accommodate the other cable bundle. In other words, the high-voltage wiring and the low-voltage wiring are arranged in the battery compartment through the two cable troughs, which can further reduce the harmonic interference between the above-mentioned one cable bundle and the above-mentioned other cable bundle. In this technical solution, one of the above-mentioned power distribution cabinets is arranged adjacent to the above-mentioned one cable trough in the length direction of the box body, and the above-mentioned other power distribution cabinet is arranged adjacent to the above-mentioned other cable trough in the length direction of the box body.

[0007] In a possible implementation, a cable bundle in the above-mentioned one cable trough is connected to the above-mentioned multiple battery packs, and the length dimension of the cable trough along the length direction of the box body can be smaller than the length dimension of the battery compartment along the length direction of the box body, so as to reduce the manufacturing cost of the cable trough. Another cable bundle of the above-mentioned other cable trough is connected to the cluster control box, and the length dimension of the cable trough along the length direction of the box body is equal to the length dimension of the battery compartment along the length direction of the box body, so that the other cable bundle can be extended to the side of the battery compartment away from the power distribution compartment to supply power to other devices.

[0008] In a possible implementation, a damper is provided on the side of the battery compartment facing away from the power distribution compartment, and the damper can be used to connect the internal air of the battery compartment with the external air. In this technical solution, the damper can be electrically connected to another power distribution cabinet through another cable bundle, so that the other power distribution cabinet can supply power to the damper.

[0009] In the energy storage container of the present application, the above-mentioned one cable bundle is connected to the high-voltage power distribution cabinet, so the cable bundle is a high-voltage wiring, and its diameter is relatively large, and the multiple cables of the cable bundle need to be wired at a set distance. The cross-sectional shape of the above-mentioned one cable trough perpendicular to the length direction of the box body is U-shaped, that is, the cable trough is an open cable trough. The open side of the open cable trough can be set toward the cluster control box. In actual wiring, a cable bundle is directly connected to the cluster control box through the open side to simplify the installation operation. The above-mentioned other cable bundle is connected to the weak-voltage power distribution cabinet, so the cable bundle is a weak-voltage wiring, and its diameter is relatively small. The cross-sectional shape of the above-mentioned other cable trough perpendicular to the length direction of the box body is a square, that is, the cable trough is a closed cable trough, and the above-mentioned other cable bundle is accommodated in the closed cable trough to protect the other cable bundle and play a dust-proof role. The other cable trough is provided with a plurality of openings arranged in sequence along the length direction of the box body, and the multiple cables of the other cable bundle can be respectively extended through the aforementioned plurality of openings and connected to the cluster control box to simplify the installation operation.

[0010] In a possible implementation, the above-mentioned multiple battery packs are stacked above the cluster control box in the height direction of the box body. In this technical solution, the cluster control box is placed at the bottom of the battery compartment, which can reduce the safety risk caused by electrical arcing, thereby improving the safety of the energy storage container.

[0011] In a possible implementation, the above-mentioned power distribution compartment may specifically include a top wall, a bottom wall, and four side walls. The four side walls are connected in sequence, and the top wall and the bottom wall are located on both sides of the four side walls in the height direction of the box body, and the top wall, the bottom wall, and the four side walls enclose the power distribution compartment. The above-mentioned four side walls include two side walls that are oppositely arranged and perpendicular to the length direction of the box body. Two side doors are provided on the side wall of the two side walls that is far from the battery compartment, and the two side doors are arranged in sequence along the width direction of the box body, and the two side doors are arranged in one-to-one correspondence with the above-mentioned two power distribution cabinets, so that after the side doors are opened from the side of the energy storage container, the staff can directly operate the two power distribution cabinets respectively.

[0012] The above-mentioned two power distribution cabinets are accommodated in the power distribution compartment. Specifically, the length dimensions of the two power distribution cabinets along the length direction of the box body can be respectively less than or equal to the length dimension of the power distribution compartment along the length direction of the box body, the height dimensions of the two power distribution cabinets along the height direction of the box body can be respectively less than or equal to the height dimension of the power distribution compartment along the height direction of the box body, and the sum of the width dimensions of the two power distribution cabinets along the width direction of the box body can be less than or equal to the width dimension of the power distribution compartment along the width direction of the box body. Therefore, the sizes of the two power distribution cabinets can be set according to actual needs. For example, the sizes of the two power distribution cabinets can be set to larger sizes, so as to make full use of the internal space of the power distribution compartment. Or, the sizes of the two power distribution cabinets can be set to smaller sizes to reduce the occupied space of the power distribution cabinets, so that other devices such as fire-fighting devices and fans can be installed in the power distribution compartment.

[0013] In a possible implementation, a partition is provided in the power distribution compartment, and the partition extends along the height direction of the box body. The above-mentioned two power distribution cabinets are located on both sides of the partition. In this technical solution, the partition divides the power distribution compartment into two compartments, and each of the two compartments accommodates a power distribution cabinet, so that the two power distribution cabinets are isolated by the partition.

[0014] In a possible implementation, the width dimension of one of the above-mentioned two compartments along the width direction of the box body can be greater than the width dimension of the other compartment along the width direction of the box body. In this way, one of the above-mentioned compartments can accommodate a power distribution cabinet with a larger volume, and the other compartment can accommodate a power distribution cabinet with a smaller volume.

[0015] In a possible implementation, a wind valve is provided on the side of the battery compartment facing away from the power distribution compartment. The wind valve is used to connect the internal and external air of the battery compartment. The wind valve is electrically connected to another power distribution cabinet through another cable harness. That is to say, the weak current power distribution cabinet can supply power to the wind valve through another cable harness.

[0016] In a possible implementation, the length dimension of another compartment along the length direction of the box body is smaller than the width dimension of another compartment along the width direction of the box body. In this way, in a box body of standard size, the length of another compartment along the length direction of the box body can be set to be smaller, so that the size of the battery compartment is increased, thereby increasing the internal space of the battery compartment to accommodate more battery packs.

[0017] In a possible implementation, in another compartment, a temperature control compartment is provided above the power distribution compartment in the height direction of the box body. The temperature control compartment is used to accommodate a liquid cooling unit. In this way, the temperature control compartment and the power distribution compartment are located at one end of the battery compartment to achieve electrical separation, so that the internal space of the battery compartment is a continuous space. Thus, the battery clusters can be continuously placed in the battery compartment, thereby improving the space utilization rate of the battery compartment and the energy storage density of the energy storage container. And the above-mentioned multiple battery packs are continuously arranged in the battery compartment, so that unified thermal management of the battery compartment can be realized.

[0018] In a possible implementation, a fire-fighting device is arranged between the temperature control compartment and the power distribution compartment to further improve the integration degree of the energy storage container 20.

[0019] In a second aspect, the present application also provides an energy storage system. The energy storage system includes a power converter and the energy storage container of the first aspect above. Among them, the power converter is used to convert the alternating current input from an external alternating current power supply into direct current and output it to the energy storage container, and / or the power converter is used to convert the direct current output by the energy storage container into alternating current and output it to a load or the power grid. In the energy storage system of the present application, the two power distribution cabinets in the energy storage container are arranged separately and isolated from each other in the power distribution compartment, which can avoid interference between strong electricity and weak electricity. And the two power distribution cabinets are arranged adjacent to each other along the width direction of the box body in the power distribution compartment, which is convenient for the staff to directly operate the two power distribution cabinets respectively from the side of the box body. Therefore, when maintaining the weak current power distribution cabinet, the strong current power distribution cabinet can remain in the working state and continuously charge and discharge the battery packs, without affecting the operation of the energy storage container. In addition, the above two power distribution cabinets can be independently manufactured and assembled, which is beneficial to the componentization of the energy storage container and improves the assembly efficiency. Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the energy storage system provided by the embodiment of the present application;

[0021] Figure 2 It is a schematic diagram of the energy storage container provided by the embodiment of the present application;

[0022] Figure 3 Another schematic diagram of the energy storage container provided by the embodiment of the present application;

[0023] Figure 4 A schematic diagram of the box body provided by the embodiment of the present application;

[0024] Figure 5 A schematic diagram of the power distribution bin provided by the embodiment of the present application;

[0025] Figure 6 Another schematic diagram of the power distribution bin provided by the embodiment of the present application;

[0026] Figure 7 A schematic diagram of the first power distribution cabinet provided by the embodiment of the present application;

[0027] Figure 8 A schematic diagram of the second power distribution cabinet provided by the embodiment of the present application;

[0028] Figure 9 Another schematic diagram of the energy storage container provided by the embodiment of the present application;

[0029] Figure 10 A schematic diagram of the first cable trough provided by the embodiment of the present application;

[0030] Figure 11 For Figure 10 A partial schematic diagram of the first cable trough in;

[0031] Figure 12 A schematic diagram of the second cable trough provided by the embodiment of the present application;

[0032] Figure 13 For Figure 12 A partial schematic diagram of the second cable trough in.

[0033] Reference numerals:

[0034] 10 - Energy storage system

[0035] 11 - Power converter

[0036] 20 - Energy storage container

[0037] 21 - Box body

[0038] 22 - Battery pack

[0039] 23 - Cluster control box

[0040] 24 - Power distribution cabinet

[0041] 25 - First partition

[0042] 26 - Second partition

[0043] 27 - Liquid - cooled unit

[0044] 28 - First cable trough

[0045] 29 - Second cable trough

[0046] 30 - Third partition board

[0047] 31 - First side door

[0048] 32 - Second side door

[0049] 33 - Fire - fighting device

[0050] 211 - First compartment

[0051] 212 - Second compartment

[0052] 241 - First power distribution cabinet

[0053] 242 - Second power distribution cabinet

[0054] 243 - First outgoing line area

[0055] 244 - Second outgoing line area

[0056] 281 - Partition piece

[0057] 291 - Opening

[0058] 2111 - Air valve

[0059] 2121 - Power distribution compartment

[0060] 2122 - Temperature - control compartment Detailed implementation manners

[0061] In order to make the objectives, technical solutions, and advantages of this application clearer, the following will further describe this application in detail with reference to the accompanying drawings.

[0062] It should be noted that the terms used in the following embodiments are only for the purpose of describing specific embodiments and are not intended to limit this application. As used in the specification and appended claims of this application, the singular forms "a", "an", "the", "above - mentioned", "said", and "this" are also intended to include forms such as "one or more", unless there is a clear contrary indication in the context.

[0063] References to "one embodiment" or "some embodiments" in this specification mean that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, statements such as "in one embodiment", "in some embodiments", "in other some embodiments", "in still other embodiments", etc., which appear at different places in this specification, do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized. The terms "comprising", "including", "having" and their variants mean "including but not limited to", unless otherwise specifically emphasized.

[0064] With the rapid development of energy storage devices, the application scope of energy storage containers is becoming more and more extensive. Among them, an energy storage container is a highly integrated energy storage device, in which multiple sets of stacked energy storage battery packs can be placed, and it is connected to external devices through a small number of interfaces, having the characteristics of high integration, small floor area, and good scalability, and is an important part of the development of distributed energy, smart grid, and energy Internet in the energy storage system. However, the power distribution devices of existing energy storage containers are centrally arranged in a compartment of the box body, resulting in easy generation of harmonic interference between the power distribution devices and being not easy to maintain.

[0065] Therefore, the present application provides an energy storage container and an energy storage system to achieve strong and weak electricity isolation and avoid interference between strong and weak cable bundles.

[0066] Figure 1 It is a schematic diagram of the energy storage system provided by the embodiment of the present application. As Figure 1 shown, the energy storage system 10 includes a power converter 11 and an energy storage container 20. Among them, the power converter 11 is used to convert the alternating current input from an external alternating current power supply into direct current and output it to the energy storage container 20, and / or the power converter 11 is used to convert the direct current output by the energy storage container 20 into alternating current and output it to a load or the power grid.

[0067] Figure 2 It is a schematic diagram of the energy storage container provided by the embodiment of the present application, Figure 3 It is another schematic diagram of the energy storage container provided by the embodiment of the present application. As Figure 2 and Figure 3 shown, the energy storage container 20 includes a box body 21, and a plurality of battery packs 22, a cluster control box 23, and a power distribution cabinet 24 are accommodated in the box body 21. Further, the energy storage container 20 may further include devices or apparatuses such as a liquid cooling unit and a fire fighting device, and these devices or apparatuses are also accommodated in the box body 21.

[0068] It should be noted that in actual application, the energy storage container 20 can be placed on the ground. The surface of the box body 21 in contact with the ground is the bottom surface. The dimensions of the bottom surface include length and width. Among them, the length direction of the bottom surface is the same as the length direction L of the box body 21, and the width direction of the bottom surface is the same as the width direction W of the box body 21. The dimension of the box body 21 perpendicular to the bottom surface is the height, and the extending direction of the height is the height direction H of the box body 21. In addition, the orientation names such as front, back, left, right, up, and down in this application are only for indicating the relative positions of the respective compartments in the box body 21, and are not used to limit the specific positions of the respective compartments.

[0069] Figure 4 This is a schematic diagram of the box body provided by the embodiment of the present application. As Figure 4 shown, a first partition 25 is provided in the box body 21. The plane where the first partition 25 is located is perpendicular to the length direction L of the box body 21, and the first partition 25 extends along the height direction H of the box body 21. The first partition 25 divides the internal space of the box body 21 into a first compartment 211 and a second compartment 212, and the first compartment 211 and the second compartment 212 are arranged adjacent to each other along the length direction L of the box body 21. Among them, the first compartment 211 is a battery compartment for accommodating the above-mentioned multiple battery packs 22 and the cluster control box 23. The cluster control box 23 is electrically connected to the multiple battery packs 22 and is used to manage the multiple battery packs 22. Specifically, the cluster control box 23 can be used to manage the charging and discharging of the battery packs 22, obtain data such as the voltage, current, temperature, state of charge (SOC) parameter, and state of health (SOH) parameter of the battery packs 22, and communicate with the controller in the battery packs 22, etc.

[0070] Furthermore, the above-mentioned multiple battery packs 22 are stacked above the cluster control box 23 along the height direction H of the box body 21. Such a layout is convenient for the staff to operate the cluster control box 23 on the one hand. On the other hand, since the combustible gas generated by the battery packs 22 usually accumulates at the top of the first compartment 211, placing the cluster control box 23 at the bottom can reduce the safety risk caused by electrical sparking, thereby improving the safety of the energy storage container 20. Specifically, the above-mentioned multiple battery packs 22 are arranged in multiple battery clusters in sequence along the length direction L of the box body 21, and the multiple battery packs 22 in each battery cluster are stacked in sequence along the height direction H of the box body 21. In a specific embodiment, the internal space of the first compartment 211 is divided into 6 battery cluster compartments, and 1 cluster control box 23 is provided in each battery cluster compartment. In this way, the 6 cluster control boxes 23 are arranged in sequence along the length direction L of the box body 21. Multiple battery packs 22 are stacked above each cluster control box 23 respectively. That is to say, the multiple battery packs 22 are arranged in 6 battery clusters along the length direction L and are respectively accommodated in the battery cluster compartments. Therefore, the cluster control box 23 in each battery cluster compartment can independently manage the multiple battery packs 22 in this battery cluster compartment.

[0071] As Figure 3 and Figure 4 shown, a power distribution compartment 2121 is provided in the second compartment 212 for accommodating the power distribution cabinet 24. In addition, the liquid cooling unit 27 and the fire-fighting devices can also be accommodated in the second compartment 212. In one embodiment, a second partition 26 is provided in the second compartment 212. The plane where the second partition 26 is located is perpendicular to the height direction H of the box body 21, and the second partition 26 extends along the width direction W of the box body 21. That is to say, along the height direction H of the box body 21, the second partition 26 divides the second compartment 212 into a power distribution compartment 2121 and a temperature control compartment 2122. Among them, the temperature control compartment 2122 is used to accommodate the liquid cooling unit 27. In this way, the temperature control compartment 2122 and the power distribution compartment 2121 are located at one end of the battery compartment to achieve electrical separation, so that the internal space of the battery compartment is a continuous space, so that the battery clusters can be continuously placed in the battery compartment, thereby improving the space utilization rate of the battery compartment and the energy storage density of the energy storage container 20. In addition, the above-mentioned multiple battery packs 22 are continuously arranged in the battery compartment, so as to realize the unified thermal management of the battery compartment.

[0072] Please continue to refer to Figure 3 , in the power distribution compartment 2121, two power distribution cabinets 24 are arranged adjacent to each other in the width direction W of the box body 21, namely the first power distribution cabinet 241 and the second power distribution cabinet 242. In the present application, the first power distribution cabinet 241 is a strong power distribution cabinet for charging and discharging the battery pack 22. The first power distribution cabinet 241 is electrically connected to the cluster control box 23 through the first cable bundle, and the cluster control box 23 is electrically connected to the above-mentioned multiple battery packs 22. The first cable bundle is a strong power cable. The first power distribution cabinet 241 charges and discharges the battery pack 22 through the first cable bundle and the cluster control box 23. Among them, the output voltage of the first cable bundle is greater than or equal to 1330 volts. The second power distribution cabinet 242 is a weak power distribution cabinet for controlling the cluster control box 23. The second power distribution cabinet 242 is electrically connected to the cluster control box 23 through the second cable bundle and is used to supply power to the cluster control box 23. The second cable bundle is a weak power cable, and the output voltage is less than or equal to 400 volts. In the energy storage container 20 of the present application, the two power distribution cabinets 24 in the power distribution compartment 2121 are independently arranged, which can avoid the interference between strong power and weak power. And the two power distribution cabinets 24 are arranged adjacent to each other in the width direction W of the box body 21 in the power distribution compartment 2121, which is convenient for the staff to directly operate the two power distribution cabinets 24 respectively from the side of the box body 21. When maintaining the second power distribution cabinet 242, the first power distribution cabinet 241 can remain in the working state and continue to charge and discharge the battery pack 22 without affecting the operation of the energy storage container 20. In addition, the first power distribution cabinet 241 and the second power distribution cabinet 242 can be independently manufactured and assembled, which is beneficial to the modularization of the energy storage container 20 and improves the assembly efficiency.

[0073] AsFigure 3 As shown, a fire-fighting device 33 may be provided between the temperature control bin 2122 and the power distribution bin 2121, further improving the integration of the energy storage container 20. The fire-fighting device 33 may be electrically connected to the second power distribution cabinet 242.

[0074] In an embodiment of the present application, the length dimension of the box body 21 may be 6000mm - 6100mm, the width dimension of the box body 21 may be 2400mm - 2600mm, and the height dimension of the box body 21 may be 2591mm - 4150mm. In actual application, the above-mentioned energy storage container 20 may be applied to a 20-foot standard container, that is, the box body 21 of the energy storage container 20 is a cube. Among them, the length of the box body 21 may be 6058mm, the width of the box body 21 may be 2438mm, and corner fitting structures are provided at eight corners of the box body 21 for sea transportation stacking, so that the energy storage container 20 can be stacked for sea transportation, reducing the sea transportation cost.

[0075] As Figure 4 shown, in an embodiment, the length dimension of the second bin 212 along the length direction L of the box body 21 is less than the width dimension of the second bin 212 along the width direction W of the box body 21. In this way, in the box body 21 of standard size, the length of the second bin 212 along the length direction L of the box body 21 can be set smaller, so that the size of the battery bin is increased, thereby increasing the internal space of the battery bin to accommodate more battery packs 22.

[0076] In an embodiment, within the second bin 212, the length dimension of the temperature control bin 2122 along the length direction of the box body 21 may be 400mm - 800mm, the width dimension of the temperature control bin 2122 along the width direction of the box body 21 may be 1600mm - 2200mm, and the height dimension H1 of the temperature control bin 2122 along the height direction of the box body 21 may be 1500mm - 2000mm. The length dimension of the power distribution bin 2121 along the length direction of the box body 21 may be 400mm - 800mm, the width dimension of the power distribution bin 2121 along the width direction of the box body 21 may be 1600mm - 2200mm, and the height dimension H2 of the power distribution bin 2121 along the height direction of the box body 21 may be 500mm - 1200mm.

[0077] Figure 5 It is a schematic diagram of the power distribution bin provided by the embodiment of the present application. As Figure 5 shown, in an embodiment, a third partition 30 is provided in the power distribution bin 2121, and the third partition 30 extends along the height direction H of the box body 21. The above two power distribution cabinets 24 are located on both sides of the third partition 30. In this embodiment, the third partition 30 divides the power distribution bin 2121 into two bins, and each of the two bins accommodates a power distribution cabinet 24, so that the two power distribution cabinets 24 are isolated by the third partition 30.

[0078] In one embodiment, the above-mentioned power distribution bin 2121 may specifically include a top wall, a bottom wall, and four side walls. The four side walls are connected in sequence, and the top wall and the bottom wall are located on both sides of the four side edges in the height direction H of the box body 21, and the top wall, the bottom wall, and the four side walls enclose the power distribution bin 2121. The four side walls include two relatively arranged side walls, and the planes where the two side walls are located are respectively perpendicular to the length direction L of the box body 21. Among the two side walls, a side wall away from the first bin 211 is provided with a first side door 31 and a second side door 32, and the first side door 31 and the second side door 32 are arranged in sequence along the width direction W of the box body 21. Among them, the first side door 31 is correspondingly arranged with the first power distribution cabinet 241, and the second side door 32 is correspondingly arranged with the second power distribution cabinet 242, so that after the first side door 31 and the second side door 32 are opened from the side of the energy storage container 20, the staff can respectively operate the first power distribution cabinet 241 and the second power distribution cabinet 242. In this embodiment, the top wall is the second partition 26, and a side wall among the four side walls close to the first bin 211 is a part of the first partition 25.

[0079] The above two power distribution cabinets 24 are accommodated in the power distribution bin 2121, and the specific dimensions can be set according to actual needs. For example, the dimensions of the two power distribution cabinets 24 can be set to larger dimensions, so as to make full use of the internal space of the power distribution bin 2121. Or, the dimensions of the two power distribution cabinets 24 can be set to smaller dimensions to reduce the occupied space of the power distribution cabinets 24, so that other devices such as fire-fighting devices 33 and fans can be installed in the power distribution bin 2121. The length dimensions of the two power distribution cabinets 24 along the length direction L of the box body 21 can be respectively less than or equal to the length dimension of the power distribution bin 2121 along the length direction L of the box body 21, the height dimensions of the two power distribution cabinets 24 along the height direction H of the box body 21 can be respectively less than or equal to the height dimension of the power distribution bin 2121 along the height direction H of the box body 21, and the sum of the width dimensions of the two power distribution cabinets 24 along the width direction W of the box body 21 can be less than or equal to the width dimension of the power distribution bin 2121 along the width direction W of the box body 21.

[0080] Figure 6 Another schematic diagram of the power distribution bin provided by the embodiment of the present application Figure 7 A schematic diagram of the first power distribution cabinet provided by the embodiment of the present application Figure 8 A schematic diagram of the second power distribution cabinet provided by the embodiment of the present application. As Figure 6 、 Figure 7 and Figure 8As shown in the figure, on one side wall of the power distribution bin 2121 close to the battery bin (a part of the first partition 25), a first cable outlet area 243 and a second cable outlet area 244 are respectively provided. After the first cable bundle extends from the first power distribution cabinet 241, it extends into the battery bin through the first cable outlet area 243 and is connected to the cluster control box 23. After the second cable bundle extends from the second power distribution cabinet 242, it extends into the battery bin through the second cable outlet area 244 and is connected to the cluster control box 23.

[0081] Figure 9 Another schematic diagram of the energy storage container provided by the embodiment of the present application, in which, Figure 9 shows a top view of the energy storage container. As Figure 9 shown, in one embodiment, a first cable trough 28 and a second cable trough 29 are arranged in the first bin 211. The first cable trough 28 and the second cable trough 29 are located at the bottom of the first bin 211, and the first cable trough 28 and the second cable trough 29 respectively extend along the length direction L of the box body 21, that is, the first cable trough 28 and the second cable trough 29 are arranged in parallel. Along the width direction W of the box body 21, the first cable trough 28 and the second cable trough 29 are located on both sides of the first bin 211. In the first cable trough 28 and the second cable trough 29, the first cable trough 28 is used to accommodate the first cable bundle, and the second cable trough 29 is used to accommodate the second cable bundle. That is to say, the first cable bundle and the second cable bundle are arranged in the battery bin through the first cable trough 28 and the second cable trough 29 respectively, which can reduce the interference of electromagnetic waves generated by high-voltage strong-current wiring on low-voltage weak-current wiring and prevent affecting communication. In this embodiment, the first cable bundle is a strong-current wiring, and the second cable bundle is a weak-current wiring. The first power distribution cabinet 241 and the first cable trough 28 are arranged adjacent to each other in the length direction L of the box body 21, and the second power distribution cabinet 242 and the second cable trough 29 are arranged adjacent to each other in the length direction L of the box body 21.

[0082] The first cable bundle in the above-mentioned first cable trough 28 is connected to the cluster control box 23. The length dimension of the first cable trough 28 along the length direction L of the box body 21 can be smaller than the length dimension of the battery bin along the length direction L of the box body 21, so as to reduce the manufacturing cost of the first cable trough 28. Specifically, in one embodiment, the internal space of the first bin 211 is divided into 6 battery cluster bins, and the 6 battery cluster bins are arranged in sequence along the length direction L of the box body 21. The first cable trough 28 is located in the first bin 211 and extends in 5 battery cluster bins close to the second bin 212. That is to say, the battery cluster bin farthest from the second bin 212 is not provided with the first cable trough 28. Of course, the first cable trough 28 can also extend in 6 battery cluster bins to facilitate the storage and wiring of the first cable bundle in each battery cluster bin.

[0083] In addition, one end of the second cable slot 29 is disposed near the second compartment 212, and the other end extends into the battery cluster compartment that is the farthest from the second compartment 212. In this embodiment, the other end of the second cable slot 29 may be disposed near the first end of the battery compartment that is away from the second compartment 212. The second cable bundle of the second cable slot 29 is connected to the cluster control box 23, and the length dimension of the second cable slot 29 along the length direction L of the box body 21 is equal to the length dimension of the battery compartment along the length direction L of the box body 21. In this way, the second cable bundle extends to the side of the first compartment 211 that faces away from the second compartment 212 to supply power to other devices.

[0084] As Figure 9 shown, in one embodiment, an air valve 2111 is disposed on the side of the battery compartment that faces away from the power distribution compartment 2121. The air valve 2111 is used to connect the internal and external air of the battery compartment. A part of the cables of the second cable bundle is connected to the cluster control box 23, and the other part of the cables is connected to the air valve 2111. Therefore, the weak current power distribution cabinet can supply power to the air valve 2111 through the second cable bundle. In addition, a water immersion sensor is further disposed in the battery compartment. The water immersion sensor is used to detect the water level height in the battery compartment to issue an alarm signal when the water level height is greater than or equal to the set water level height. The water immersion sensor can also be electrically connected to the second power distribution cabinet 242 through another part of the cables of the second cable bundle and send a warning signal to the second power distribution cabinet 242. In the above embodiment, the second power distribution cabinet 242 can supply power to devices such as the cluster control box 23, the air valve, and the water immersion sensor, and can control functions such as the opening, closing, and communication of the cluster control box 23, the air valve, and the water immersion sensor.

[0085] In the energy storage container 20 of the present application, the first cable bundle is connected to the first power distribution cabinet 241 (strong current power distribution cabinet). Therefore, the first cable bundle is for strong current wiring, its diameter dimension is large, and a set distance needs to be set between multiple cables of the first cable bundle for wiring. Figure 10 This is a schematic diagram of the first cable slot provided by the embodiment of the present application. Figure 11 For Figure 10 the partial schematic diagram of the first cable slot in Figure 10 and Figure 11 shown, the cross-sectional shape of the first cable slot 28 perpendicular to the length direction L of the box body 21 is U-shaped, that is to say, the first cable slot 28 is an open cable slot, and the open side of the open cable slot can be disposed facing the cluster control box 23. The first cable bundle includes a plurality of first cables, and the foregoing plurality of first cables can be disposed in one-to-one correspondence with the plurality of cluster control boxes 23. During actual wiring, each first cable of the first cable bundle extends out of the open side and is connected to the corresponding cluster control box 23 to simplify the installation operation. Each cluster control box 23 is connected to a plurality of battery packs 22 stacked above the cluster control box 23. Similarly, the second cable slot 29 can also be an open cable slot.

[0086] Please continue to refer toFigure 10 and Figure 11 In a specific embodiment, the first compartment 211 includes six battery cluster compartments, and a cluster control box 23 is provided at the bottom of each battery cluster compartment. The first cable bundle includes six first cables. The first cable trough 28 has a mesh structure. Among them, a plurality of partition pieces 281 are provided in the first cable trough 28, and the plurality of partition pieces 281 are arranged in sequence along the length direction L of the box body 21. In the first cable trough 28, the partition piece 281 divides the first cable trough 28 into two accommodation spaces, and the two accommodation spaces are arranged in sequence along the height direction of the box body 21. Among the above six first cables, three of the first cables are routed in one accommodation space of the first cable trough 28, and the other three first cables are routed in the other accommodation space of the first cable trough 28, so that the intervals between the cables can be realized.

[0087] In the energy storage container 20 of the present application, the second cable bundle is connected to the second power distribution cabinet 242 (weak current power distribution cabinet). Therefore, the second cable bundle is for weak current wiring and has a smaller diameter. Figure 12 FIG. is a schematic diagram of the second cable trough provided by an embodiment of the present application. Figure 13 is Figure 12 a partial schematic diagram of the second cable trough in Figure 12 and Figure 13 As shown in

[0088] In an embodiment, the width dimension of the first compartment 211 along the width direction W of the box body 21 may be greater than the width dimension of the second compartment 212 along the width direction W of the box body 21. In this way, the first compartment 211 can accommodate a stronger power distribution cabinet with a larger volume, and the second compartment 212 can accommodate a weaker power distribution cabinet with a smaller volume.

[0089] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An energy storage container, characterized in that: The energy storage container comprises a box body, wherein: Two compartments are adjacently arranged in the length direction of the box body, one of the two compartments is a battery compartment, the battery compartment is used to accommodate a cluster control box and a plurality of battery packs, the cluster control box is electrically connected to the plurality of battery packs and is used to manage the battery packs; A power distribution compartment is provided in the other of the two compartments; in the power distribution compartment, two power distribution cabinets are adjacently arranged in the width direction of the box body; one of the two power distribution cabinets is electrically connected to the cluster control box via a cable bundle, and one of the power distribution cabinets is used to supply power to the multiple battery packs through the cluster control box; the other of the two power distribution cabinets is electrically connected to the cluster control box via another cable bundle, and the other power distribution cabinet is used to supply power to the cluster control box.

2. The energy storage container according to claim 1, characterized in that: Two cable grooves are provided in the battery compartment, the two cable grooves are located at the bottom of the battery compartment and extend along the length direction of the box body respectively; one of the two cable grooves is used to accommodate the one cable bundle, and the other of the two cable grooves is used to accommodate the other cable bundle; One of the power distribution cabinets and the one cable trough are arranged adjacent to each other in the length direction of the box, and the other power distribution cabinet and the other cable trough are arranged adjacent to each other in the length direction of the box.

3. The energy storage container according to claim 2, characterized in that: In the length direction of the box body, the length dimension of one cable trough along the length direction of the box body is smaller than the length dimension of the battery compartment along the length direction of the box body, and the length dimension of the other cable trough along the length direction of the box body is equal to the length dimension of the battery compartment along the length direction of the box body.

4. The energy storage container according to claim 3, characterized in that: A wind valve is provided on the side of the battery compartment facing away from the power distribution compartment, and the wind valve is electrically connected to the other power distribution cabinet through the other cable harness.

5. The energy storage container according to any one of claims 2 to 4, characterized in that: The cross-sectional shape of the one cable trough perpendicular to the length direction of the box body is U-shaped; The cross-sectional shape of the other cable trough perpendicular to the length direction of the box body is a square shape, and the other cable trough is provided with a plurality of openings arranged in sequence along the length direction of the box body.

6. The energy storage container according to any one of claims 1 to 4, characterized in that: The plurality of battery packs are stacked above the cluster control box in a height direction of the box.

7. The energy storage container according to any one of claims 1 to 4, characterized in that: The power distribution warehouse comprises a top wall, a bottom wall and four side walls, the four side walls are connected in sequence, the top wall and the bottom wall are relatively located on both sides of the four side walls in the height direction of the box body, and the top wall, the bottom wall and the four side walls enclose the power distribution warehouse; The four side walls include two side walls that are oppositely arranged and perpendicular to the length direction of the box body; one of the two side walls that is away from the battery compartment is provided with two side doors, the two side doors are arranged in sequence along the width direction of the box body, and the two side doors are arranged one-to-one correspondingly to the two distribution cabinets.

8. The energy storage container according to any one of claims 1 to 4, characterized in that: The length dimensions of the two distribution cabinets along the length direction of the box are respectively less than or equal to the length dimension of the distribution warehouse along the length direction of the box, the height dimensions of the two distribution cabinets along the height direction of the box are respectively less than or equal to the height dimension of the distribution warehouse along the height direction of the box, and the sum of the width dimensions of the two distribution cabinets along the width direction of the box is less than or equal to the width dimension of the distribution warehouse along the width direction of the box.

9. The energy storage container according to any one of claims 1 to 4, characterized in that: A partition is provided in the power distribution warehouse, and the partition extends along the height direction of the box body. The two power distribution cabinets are located on both sides of the partition.

10. The energy storage container according to any one of claims 1 to 4, characterized in that: The length dimension of the another bin along the length direction of the box body is smaller than the width dimension of the another bin along the width direction of the box body.

11. The energy storage container according to any one of claims 1 to 4, characterized in that: In the other compartment, a temperature control compartment is provided above the power distribution compartment in the height direction of the box body, and the temperature control compartment is used to accommodate a liquid cooling unit.

12. The energy storage container according to claim 11, characterized in that: Fire-fighting devices are provided between the temperature control compartment and the power distribution compartment.

13. An energy storage system, characterized in that: The energy storage system comprises an energy storage container and a power converter as described in any one of claims 1 to 12, wherein the power converter is used to convert AC power input from an external AC power source into DC power and output it to the energy storage container, and / or the power converter is used to convert DC power output from the energy storage container into AC power and output it to a load or a power grid.

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