Stacked energy storage cabinet and energy storage system

Abstract

The utility model relates to the technical field of energy storage cabinets, in particular to a stacked energy storage cabinet and an energy storage system.The stacked energy storage cabinet comprises multiple supporting assemblies and a battery pack, and the multiple supporting assemblies are sequentially stacked together from bottom to top in the first preset direction; each supporting assembly comprises a first supporting component and a second supporting component, and the second supporting component is located on the top of the first supporting component. A mounting cavity is formed in the first supporting component, battery packs are mounted in the mounting cavity, and the battery packs on each layer are arranged in parallel in the first preset direction. Therefore, the assembly structures of the plurality of battery packs and the support members are sequentially stacked together from bottom to top, and the battery packs on each layer are electrically connected in parallel, so that when a certain layer is damaged, the battery packs on the layer can be directly and integrally moved away and withdrawn or placed in situ for isolation, the flexibility is relatively high, and the reliability is relatively high; and particularly, the subsequent operation and maintenance cost can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of energy storage cabinets, and in particular to a stackable energy storage cabinet and an energy storage system. Background Art

[0002] Currently, commercial energy storage cabinets on the market are typically composed of a cabinet body, battery packs, high-voltage boxes, energy storage inverters, and thermal management components. Multiple battery packs are connected in series, and the total positive and negative currents are output to the high-voltage box, where they are converted and output to the energy storage inverter. Since multiple battery packs are connected in series, the failure of one pack will affect the application of the entire commercial energy storage cabinet. In addition, battery pack replacement and maintenance are inconvenient. Utility Model Content

[0003] The purpose of this application is to provide a stackable energy storage cabinet and energy storage system, which to a certain extent solves the technical problems existing in the prior art, in which multiple battery packs in an industrial and commercial storage cabinet are electrically connected in series. The failure of one pack will affect the application of the entire industrial and commercial energy storage cabinet, and the replacement and maintenance of the battery packs are also inconvenient.

[0004] The present application provides a stackable energy storage cabinet, comprising: a support assembly and a battery pack; wherein, there are multiple support assemblies, and the multiple support assemblies are stacked together sequentially from bottom to top along a first preset direction; any of the support assemblies comprises a first support member and a second support member, and the second support member is located on top of the first support member; the first support member forms an installation cavity, and the battery pack is installed in the installation cavity, and the battery packs of each layer are arranged in parallel along the first preset direction.

[0005] In the above technical solution, further, one of the second supporting member of the lower layer and the first supporting member of the adjacent upper layer in the two adjacent layers of the supporting assembly is formed with a mounting groove, and the other one is formed with a mounting protrusion, and the mounting protrusion is installed in the mounting groove.

[0006] In any of the above technical solutions, further, the side walls of the installation cavity are respectively formed with a first opening along the first preset direction and a second opening arranged perpendicular to the first preset direction, and the installation cavity is connected to the outside through the first opening and the second opening.

[0007] In any of the above technical solutions, further, the stackable energy storage cabinet also includes a decorative panel, and the decorative panel is arranged on the first opening side and is used to cover all of the first openings; the decorative panel and any of the second supporting members can be detachably connected, and the decorative panel is a retractable structure.

[0008] In any of the above technical solutions, further, any layer of the support assembly also includes a decorative panel, and the decorative panel is arranged on the second opening side and is used to cover the second opening; the decorative panel is detachably connected to the first support member and / or the second support member of the same layer.

[0009] In any of the above technical solutions, further, the stacked energy storage cabinet also includes a connecting member, which extends along a first preset direction, and the bottom end of the connecting member is detachably connected to the first support member of the bottom layer, and the top end of the connecting member is detachably connected to the second support member of the top layer.

[0010] In any of the above technical solutions, further, an avoidance groove is formed on a side of the first support member and / or the second support member in each layer of the support assembly facing away from the battery pack.

[0011] In any of the above technical solutions, further, a third opening is formed on the side wall of the avoidance groove and is arranged perpendicular to the first preset direction, and the avoidance groove is connected to the outside through the third opening.

[0012] In any of the above technical solutions, further, along the first preset direction, the first supporting members and the second supporting members of each layer are formed with penetrating through holes.

[0013] In any of the above technical solutions, further, the stacked energy storage cabinet also includes a liquid cooling plate and a thermal management component; wherein, the liquid cooling plate is provided at the bottom of each layer of the battery pack, and the liquid cooling plate is used to heat or cool the battery pack; along the first preset direction, the thermal management component is provided at the bottom of the support component of the bottom layer or the top of the support component of the top layer, and any of the liquid cooling plates is connected to the thermal management component through a pipeline.

[0014] In any of the above technical solutions, further, the stacked energy storage cabinet also includes a top cover plate, and the top cover plate is arranged on the top of the second supporting member on the top layer and is detachably connected to the second supporting member.

[0015] In any of the above technical solutions, further, the battery pack includes a battery compartment, an electrical compartment, a battery module and an electrical component; wherein the electrical compartment is connected to the battery compartment, and the interiors of the two are separated; the number of the battery modules is multiple, and the multiple battery modules are all arranged in the battery compartment, and the multiple battery modules are connected in series; the electrical component is arranged in the electrical compartment.

[0016] In any of the above technical solutions, further, the battery pack is detachably connected to the first supporting member.

[0017] In any of the above technical solutions, further, the first preset direction is a vertical direction.

[0018] The present application also provides an energy storage system, including a stacked energy storage cabinet according to any of the above technical solutions, and thus having all the beneficial technical effects of the stacked energy storage cabinet, which will not be described in detail here.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] The present application provides a novel stackable energy storage cabinet, which stacks multiple battery packs and support structure assemblies in order from bottom to top, and the battery packs of each layer are electrically connected in parallel. Therefore, when a layer is damaged, the layers above it can be directly removed as a whole, thereby removing the damaged layer of battery packs together with the first support member and the second support member as a whole, and then the removed multi-layer battery pack structure is moved back. It is even possible to keep the battery pack with problems in place without affecting the use of the entire energy storage cabinet, thereby greatly improving the efficiency and reliability of use. It can be seen that the energy storage cabinet provided by the present application can be quickly assembled and disassembled, has greater flexibility, and is highly reliable, and can especially reduce the cost of subsequent operation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0022] Figure 1 A schematic diagram of the structure of a stacked energy storage cabinet provided in an embodiment of the present application;

[0023] Figure 2 Another structural schematic diagram of a stackable energy storage cabinet provided in an embodiment of the present application;

[0024] Figure 3 A schematic diagram of the partial structure of a stacked energy storage cabinet provided in an embodiment of the present application;

[0025] Figure 4 An assembly diagram of the support assembly and battery pack provided in an embodiment of the present application;

[0026] Figure 5 A schematic diagram of the structure of the support assembly provided in an embodiment of the present application;

[0027] Figure 6 A schematic structural diagram of a first supporting member provided in an embodiment of the present application;

[0028] Figure 7 Another structural schematic diagram of the first supporting member provided in an embodiment of the present application;

[0029] Figure 8 A schematic structural diagram of a second supporting member provided in an embodiment of the present application;

[0030] Figure 9 A schematic diagram of the structure of the battery pack provided in an embodiment of the present application.

[0031] Reference numerals:

[0032] 1-support assembly, 11-first support member, 111-installation cavity, 112-first opening, 113-second opening, 114-installation protrusion, 12-second support member, 121-installation groove, 13-avoidance groove, 14-through hole, 2-battery pack, 21-battery compartment, 22-electrical compartment, 3-liquid cooling plate, 4-decorative panel, 5-top cover plate. DETAILED DESCRIPTION

[0033] The technical solution of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0034] The components of the embodiments of the present application generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the present application.

[0035] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0036] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0038] Refer to the following Figures 1 to 9 A stacked energy storage cabinet and an energy storage system according to some embodiments of the present application are described.

[0039] Example 1

[0040] See also Figures 1 to 5 As shown, an embodiment of the present application provides a stacked energy storage cabinet, comprising: a support assembly 1 and a battery pack 2; wherein, there are multiple support assemblies 1, and the multiple support assemblies 1 are stacked together in sequence from bottom to top along a first preset direction a; any support assembly 1 includes a first support member 11 and a second support member 12, and the second support member 12 is located on the top of the first support member 11; the first support member 11 is formed with a mounting cavity 111, and the battery pack 2 is mounted in the mounting cavity 111, and the battery packs 2 of each layer are arranged in parallel along the first preset direction a, that is, the battery packs 2 of each layer are connected in parallel to the existing high-voltage box, which is a prior art and will not be described in detail here.

[0041] According to the structure described above, the present application provides a new type of stackable energy storage cabinet, which stacks the assembly structure of multiple battery packs 2 and support components 1 in order from bottom to top, and the battery packs 2 of each layer are electrically connected in parallel. Therefore, when a layer is damaged, the multiple layers above it can be directly removed as a whole, thereby removing the damaged layer of battery packs 2 together with the supporting components 1 as a whole. Even the battery pack 2 with problems can be directly retained in place without affecting the use of the entire energy storage cabinet, and the efficiency and reliability of use are greatly improved. It can be seen that the energy storage cabinet provided by the present application can be quickly assembled and disassembled, has greater flexibility and high reliability, and can especially reduce the cost of subsequent operation and maintenance.

[0042] It should be noted that the stackable energy storage cabinet shell provided in this application is used as an industrial and commercial energy storage cabinet. Of course, it is not limited to this and can also be used in other environments, depending on actual needs.

[0043] In this embodiment, preferably, Figures 4 to 8As shown, the second support member 12 of the lower layer in the two adjacent layers of support assemblies 1 is formed with a mounting groove 121, and the first support member 11 of the adjacent upper layer is formed with a mounting protrusion 114, and the mounting protrusion 114 is installed in the mounting groove 121. Of course, it is not limited to this. The first support member 11 can also be formed with a mounting groove 121, and the second support member 12 of the adjacent upper layer can be formed with a mounting protrusion 114. The specific selection is based on actual needs.

[0044] According to the structure described above, the cooperation between the mounting protrusion 114 and the mounting groove 121 plays a role in installation positioning, which can ensure that the first support member 11 of the upper layer and the second support member 12 of the lower layer are assembled more stably and help to improve the assembly speed.

[0045] Furthermore, preferably, when both the first support member 11 and the second support member 12 are square, mounting protrusions 114 and mounting grooves 121 can be provided at the four corners of the square structure. This provides positioning structures at the four corners, thereby improving the stability of the support assemblies 1 in the two adjacent layers after assembly. Of course, this is not limited to this, and other designs can be made according to actual needs.

[0046] It should be noted that the aforementioned structures of the mounting protrusion 114 and the mounting groove 121 may not be provided, and the selection is made according to actual needs.

[0047] In this embodiment, preferably, Figure 6 As shown, the side walls of the installation cavity 111 are respectively formed with a first opening 112 along the first preset direction a and a second opening 113 arranged perpendicular to the first preset direction a, and the installation cavity 111 is connected to the outside through the first opening 112 and the second opening 113 .

[0048] According to the structure described above, the battery pack 2 can be installed in the installation cavity 111 through the first opening 112 and the second opening 113, and the battery pack 2 and the first support member 11 can be connected together through the first opening 112 at the top, thereby improving the convenience of operation. After the battery pack 2 and the first support member 11 are installed, the second support member 12 can be installed on the top of the first support member 11, just covering the top of the battery pack 2, thereby protecting the battery pack 2. It should be noted that the height of the battery pack 2 is lower than the first opening 112 at the top of the installation cavity 111.

[0049] In this embodiment, preferably, Figure 1 、 Figure 3 and Figure 6As shown, the stacked energy storage cabinet further includes a decorative panel 4, which is arranged on the side of the second opening 113 and is used to cover all the second openings 113; the decorative panel 4 and any second support member 12 can be detachably connected, and the decorative panel 4 is a retractable structure. It should be noted that: in order to improve the convenience of installation, the decorative panel 4 can be connected only to the second support member 12 of the top layer, and can be disconnected from the second support members 12 of other layers.

[0050] According to the structure described above, it can be seen that by using an integral decorative panel 4, all battery packs 2 can be sealed in the corresponding installation cavity 111, thereby protecting the battery packs 2. In addition, the entire decorative panel 4 can also reinforce the multi-layer support assembly 1, and the decorative panel 4 can also enhance the aesthetics. In particular, the decorative panel 4 adopts a retractable structure, and when a layer of battery pack 2 is removed due to damage, the height of the decorative panel 4 can be lowered accordingly to ensure overall coordination.

[0051] Furthermore, preferably, the decorative panel 4 and any second supporting member 12 can be detachably connected by fastening members such as screws or bolts. Of course, the present invention is not limited thereto, and a detachable connection method such as a snap fastener can also be used.

[0052] It should be noted that the structure of the decorative panel 4 is not limited to the above-mentioned integral structure. A segmented decorative panel 4 structure can also be used. For example, each layer of the support assembly 1 also includes a decorative panel 4, and the decorative panel 4 is disposed on the side of the first opening 112 and is used to cover the first opening 112. The decorative panel 4 is detachably connected to the first support member 11 and / or the second support member 12 of the same layer. As can be seen, each layer of battery pack 2 is equipped with a separate decorative panel 4. If a battery pack 2 on a layer is damaged, the decorative panel 4 on that layer is removed along with the battery pack 2 structure, eliminating the need to adjust the decorative panel 4 separately, saving time and effort.

[0053] In this embodiment, preferably, the stacked energy storage cabinet further includes a connecting member (not shown in the figure), which extends along the first preset direction a, and the bottom end of the connecting member is detachably connected to the first support member 11 of the bottom layer, and the top end of the connecting member is detachably connected to the second support member 12 of the top layer.

[0054] As can be seen from the structure described above, this stackable energy storage cabinet is equipped with a connecting member, which can be fixed at both ends to the first support member 11 at the bottom layer and the second support member 12 at the top layer, thereby reinforcing all support assemblies 1 and making the overall structure more stable. It should be noted that this connecting member can also be omitted, depending on actual needs.

[0055] In this embodiment, preferably, Figure 5 As shown, an avoidance groove 13 is formed on the side of the first support member 11 and the second support member 12 in each layer of the support assembly 1 facing away from the battery pack 2 .

[0056] As can be seen from the structure described above, the first support member 11 and the second support member 12 are both provided with a relief groove 13 to facilitate the routing of wires and pipes, and the grooves are provided on the side facing away from the battery pack 2 without affecting the support of the battery pack 2. It should be noted that the relief groove 13 is not limited to being formed on both the first support member 11 and the second support member 12 on the side facing away from the battery pack 2 in each layer of the support assembly 1. The relief groove 13 can also be provided on only the first support member 11 or the second support member 12, depending on actual needs.

[0057] In this embodiment, preferably, Figure 5 As shown, a third opening is formed on the side wall of the avoidance groove 13 and is arranged perpendicular to the first preset direction a, and the avoidance groove 13 is connected to the outside through the third opening.

[0058] According to the structure described above, the third opening makes it easier for operators to install and adjust lines or pipes, etc., thereby improving the convenience of operation. Preferably, the third opening is located on the side of the decorative panel 4. When there is a problem, the decorative panel 4 can be directly opened for operation, which is more convenient.

[0059] In this embodiment, preferably, Figure 5 As shown, along the first preset direction a, each layer of the first supporting member 11 and the second supporting member 12 is formed with a through hole 14 therethrough.

[0060] According to the structure described above, the through hole 14 is mainly used for routing wires and pipes between upper and lower layers.

[0061] In this embodiment, preferably, Figure 4 As shown, the stacked energy storage cabinet also includes a liquid cooling plate 3 and a thermal management component; wherein, a liquid cooling plate 3 is provided at the bottom of each layer of battery pack 2, and the liquid cooling plate 3 is used to heat or cool the battery pack 2; along the first preset direction a, the thermal management component is provided at the bottom of the bottom support assembly 1 or the top of the top support assembly 1, and any liquid cooling plate 3 is connected to the thermal management component through a pipeline.

[0062] According to the structure described above, the thermal management component is used to supply heat exchange liquid to each layer of the liquid cooling plate 3, and adjust the temperature and flow rate of the heat exchange liquid, that is, adjust the cooling or heating effect of the battery pack 2, which is more controllable. In addition, the thermal management component is integrated at the top and bottom of the multiple support components 1 after stacking, which has a higher degree of integration, helps to save space, and does not affect the maintenance of the battery pack 2.

[0063] Furthermore, preferably, the thermal management component is a liquid cooling unit, which can be used for both cooling and heating, and the specific selection is based on actual needs.

[0064] In this embodiment, preferably, Figure 1 and Figure 2 As shown, the stacked energy storage cabinet also includes a top cover plate 5, and the top cover plate 5 is arranged on the top of the second support member 12 of the top layer and is detachably connected to the second support member 12. It should be noted that when the aforementioned thermal management component is installed on the top of the second support member 12 of the top layer, the top cover plate 5 needs to be fixed on the top of the thermal management component, and the specific selection is based on actual needs.

[0065] According to the structure described above, the top cover plate 5 plays a role in dustproof and waterproof, and plays a role in protecting the battery pack 2 and thermal management components below.

[0066] In this embodiment, preferably, Figure 9 As shown, the battery pack 2 includes a battery compartment 21, an electrical compartment 22, battery modules and electrical components; wherein, the electrical compartment 22 is connected to the battery compartment 21, and the interiors of the two are separated; there are multiple battery modules, and multiple battery modules are all arranged in the battery compartment 21, and multiple battery modules are connected in series; the electrical components are arranged in the electrical compartment 22.

[0067] According to the structure described above, the battery compartment 21 and the electrical compartment 22 are physically separated, which further improves the system reliability. If a failure occurs in the electrical compartment 22, it can be quickly located and replaced without affecting the application of the battery compartment 21. At the same time, the upgrade and iterative maintenance of the components in the electrical compartment 22 will not affect the battery compartment 21. There is no need to open the battery compartment 21, which will not affect the sealing performance of the battery compartment 21. In addition, the heat generated by the electrical compartment 22 will also be isolated from the battery compartment 21, reducing the impact of the heat in the electrical compartment 22 on the battery compartment 21. It is more flexible and adaptable.

[0068] The electrical compartment 22 and the battery compartment 21 are connected in a detachable manner, which makes it convenient to maintain the structures inside the electrical compartment 22 and the battery compartment 21 separately without interfering with or affecting each other.

[0069] Furthermore, preferably, the electrical compartment 22 and the battery compartment 21 are both hollow shell structures, and both have doors that can be opened or closed, so that the interiors of the two can be maintained separately. Of course, this is not limited to this, and other structures can also be used, depending on actual needs.

[0070] Furthermore, preferably, the electrical compartment 22 and the battery compartment 21 can be connected in a detachable manner by bolts or buckles, etc. Of course, not limited to this, the two can also be connected by welding.

[0071] It should be noted that the aforementioned first preset direction a can be a vertical direction or a direction forming an angle with the vertical direction. Of course, it is not limited thereto and can be selected according to actual needs.

[0072] Example 2

[0073] Embodiment 2 of the present application further provides an energy storage system, including the stacked energy storage cabinet of the above-mentioned embodiment 1. Therefore, it has all the beneficial technical effects of the stacked energy storage cabinet, and the same technical features and beneficial effects are not repeated here.

[0074] In this embodiment, preferably, the energy storage system includes a plurality of the aforementioned stacked energy storage cabinets, and the plurality of stacked energy storage cabinets of the energy storage system are electrically connected in parallel or in series.

[0075] According to the structure described above, the aforementioned multiple energy storage system stacked energy storage cabinets can be connected in series or in parallel according to actual needs to meet different usage requirements. In particular, when multiple energy storage system stacked energy storage cabinets are used in parallel, large energy storage requirements can be met.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A stackable energy storage cabinet, characterized in that: include: A support assembly and a battery pack; wherein, there are multiple support assemblies, and the multiple support assemblies are stacked together in sequence from bottom to top along a first preset direction; any of the support assemblies includes a first support member and a second support member, and the second support member is located on top of the first support member; the first support member forms an installation cavity, and the battery pack is installed in the installation cavity, and the battery packs of each layer are arranged in parallel along the first preset direction.

2. The stackable energy storage cabinet according to claim 1, characterized in that: One of the second supporting member of the lower layer and the first supporting member of the adjacent upper layer in the two adjacent layers of the supporting assemblies is formed with a mounting groove, and the other is formed with a mounting protrusion, and the mounting protrusion is installed in the mounting groove.

3. The stackable energy storage cabinet according to claim 1, characterized in that: A first opening along the first preset direction and a second opening perpendicular to the first preset direction are respectively formed on the sidewalls of the installation cavity, and the installation cavity is connected to the outside through the first opening and the second opening.

4. The stackable energy storage cabinet according to claim 3, characterized in that: The stackable energy storage cabinet further includes a decorative panel, which is arranged on the side of the first opening and is used to cover all the first openings; the decorative panel is detachably connected to any of the second supporting members, and the decorative panel is a retractable structure; or The support assembly at any layer further includes a decorative panel, and the decorative panel is arranged on the second opening side and is used to cover the second opening; the decorative panel is detachably connected to the first support member and / or the second support member of the same layer.

5. The stackable energy storage cabinet according to claim 1, characterized in that: The stacked energy storage cabinet further includes a connecting member extending along a first preset direction, wherein the bottom end of the connecting member is detachably connected to the first supporting member of the bottom layer, and the top end of the connecting member is detachably connected to the second supporting member of the top layer.

6. The stackable energy storage cabinet according to claim 1, characterized in that: An avoidance groove is formed on a side of the first supporting member and / or the second supporting member in each layer of the supporting assembly facing away from the battery pack.

7. The stackable energy storage cabinet according to claim 6, characterized in that: A third opening is formed on the side wall of the avoidance groove and is arranged perpendicular to the first preset direction, and the avoidance groove is connected to the outside through the third opening.

8. The stackable energy storage cabinet according to claim 1, characterized in that: Along the first preset direction, each layer of the first supporting member and the second supporting member is formed with a through hole.

9. The stackable energy storage cabinet according to any one of claims 1 to 8, characterized in that: The stacked energy storage cabinet further includes a liquid cooling plate and a thermal management component; wherein the liquid cooling plate is provided at the bottom of each layer of the battery pack, and the liquid cooling plate is used to heat or cool the battery pack; along the first preset direction, the thermal management component is provided at the bottom of the support component of the bottom layer or the top of the support component of the top layer, and any of the liquid cooling plates is connected to the thermal management component through a pipeline; and / or The stacked energy storage cabinet further includes a top cover plate, and the top cover plate is arranged on the top of the second support member of the top layer and is detachably connected to the second support member; and / or The battery pack includes a battery compartment, an electrical compartment, a battery module, and electrical components; wherein the electrical compartment is connected to the battery compartment, and the interiors of the two are separated; there are multiple battery modules, and multiple battery modules are all arranged in the battery compartment, and multiple battery modules are connected in series; the electrical components are arranged in the electrical compartment; and / or The battery pack is detachably connected to the first supporting member; and / or The first preset direction is a vertical direction.

10. An energy storage system, characterized in that: The invention comprises a plurality of stacked energy storage cabinets according to any one of claims 1 to 9, wherein the plurality of stacked energy storage cabinets are electrically connected in parallel or in series.

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