Energy storage apparatus and energy storage valve tower

Abstract

Provided in the present application are an energy storage apparatus (100) and an energy storage valve tower (1000), the energy storage apparatus (100) comprising an electric cabinet module (10), a power module (20) and a current collection module (30), wherein the power module (20) and the current collection module (30) are detachably connected to an electric cabinet frame (11) of the electric cabinet module (10). In the energy storage apparatus (100) provided in the embodiments of the present application, when transportation is required, the power module (20) and the current collection module (30) can be detached from the electric cabinet frame (11) of the electric cabinet module (10), thus facilitating separate packaging and transportation of the power module (20), the current collection module (30) and the electric cabinet module (10). Compared with transporting as a whole, when separated, the power module (20), the current collection module (30) and the electric cabinet module (10) are lighter in weight than the complete energy storage apparatus (100) and can be separately transported, thereby effectively improving transportation convenience.

Description

Energy storage equipment and energy storage valve tower

[0001] This application refers to Chinese patent application No. 202323168063.1, filed on November 22, 2023, entitled “Energy Storage Equipment and Energy Storage Valve Tower,” which is incorporated herein by reference in its entirety. Technical Field

[0002] The present application relates to the technical field of energy storage structures, and in particular provides an energy storage device and an energy storage valve tower. Background Art

[0003] With the rapid development of new energy technologies, high-power power electronic devices are becoming increasingly popular. These devices contain a large number of modules and components, making them bulky and heavy, making them difficult to transport.

[0004] Application Contents

[0005] The purpose of the embodiments of the present application is to provide an energy storage device and an energy storage valve tower, aiming to solve the problem in the related art that the energy storage device is large in size and heavy, making it difficult to transport.

[0006] To achieve the above objectives, the technical solutions adopted in the embodiments of the present application are:

[0007] In the first aspect, an embodiment of the present application provides an energy storage device, including an electrical cabinet module, a power module and a bus module. The electrical cabinet module includes an electrical cabinet frame and an electrical cabinet unit arranged in the electrical cabinet frame. The electrical cabinet unit includes a cabinet structure and a battery arranged in the cabinet structure. The power module and the bus module are detachably connected to the electrical cabinet frame.

[0008] Beneficial effects of the embodiments of the present application: The energy storage device provided by the embodiments of the present application, by detachably connecting the power module and the bus module to the electrical cabinet frame, can, when transportation is required, remove the power module and the bus module from the electrical cabinet frame of the electrical cabinet module, so as to facilitate packaging and transportation of the power module, the bus module and the electrical cabinet module separately. Compared with the overall transportation method, the disassembled power module, bus module and electrical cabinet module are lighter than the complete energy storage device and can be transported separately, thereby effectively improving the convenience of transportation.

[0009] In some embodiments, the power module and the bus module are detachably connected to the outside of the electrical cabinet frame.

[0010] By adopting the above-mentioned technical solution, the electrical cabinet unit is accommodated on the inner side of the electrical cabinet frame, and the power module and the bus module are hung outside the electrical cabinet frame. This installation method allows the power modules, bus modules and electrical cabinet units with large size differences to be arranged separately. The electrical cabinet frame is only used to accommodate the electrical cabinet unit. The space utilization rate inside the electrical cabinet frame is high, and the electrical cabinet units are arranged more compactly, thereby effectively reducing the overall volume of the electrical cabinet frame. At the same time, hanging the power module and the bus module outside the electrical cabinet frame can improve the convenience of maintenance operations on the power module and the bus module. After the power module and the bus module are disassembled from the electrical cabinet frame, the volume is smaller than that of the complete energy storage device, thereby further improving the convenience of transportation.

[0011] In some embodiments, the energy storage device further includes an external hanging frame, which is detachably connected to the outside of the electrical cabinet frame, and the power module and the bus module are accommodated in the external hanging frame.

[0012] By adopting the above-mentioned technical solution, an external frame is used to accommodate the power module and the bus module, so that the power module and the bus module can be removed at the same time by removing the external frame from the electrical cabinet frame, thereby improving the disassembly and assembly efficiency, and at the same time improving the regularity of the power module and the bus module when assembled on the electrical cabinet module.

[0013] In some embodiments, the external frame includes a first frame portion and a second frame portion arranged along the gravity direction, the power module is accommodated in the first frame portion, and the confluence module is accommodated in the second frame portion.

[0014] By adopting the above technical solution, the power module and the bus module are respectively accommodated in the first frame part and the second frame part, so that the power module and the bus module are arranged in sequence along the direction of gravity, so as to facilitate maintenance operations on the power module and the bus module respectively.

[0015] In some embodiments, the energy storage device further includes a limiting device, which is disposed on the electrical cabinet frame and is connected to the external frame.

[0016] By adopting the above technical solution, a limiting device is used to support and limit the position of the external frame, so that when the external frame is connected to the electrical cabinet frame, the external frame can also be limited and supported by the limiting device, effectively improving the installation stability of the external frame.

[0017] In some embodiments, the limiting device includes a top limiting structure and a bottom limiting structure, both of which are connected to the electrical cabinet frame; in the direction of gravity, the top limiting structure abuts against the top end of the external frame, and the bottom limiting structure abuts against the bottom end of the external frame.

[0018] By adopting the above-mentioned technical solution, the top limiting structure and the bottom limiting structure are used to act together on the top and bottom ends of the external frame, thereby supporting and limiting the external frame in the direction of gravity, which can effectively improve the accuracy of the installation of the external frame and improve the stability of the external frame after installation.

[0019] In some embodiments, the electrical cabinet units are arranged in sequence along a first direction perpendicular to the direction of gravity, and the external frame is arranged on either side of the electrical cabinet frame in the first direction.

[0020] By adopting the above-mentioned technical solution, the electrical cabinet units can be arranged in sequence in the electrical cabinet frame along the first direction, and the external frame is set on either side of the electrical cabinet frame in the first direction, so that the external frame avoids the electrical cabinet units in a direction perpendicular to the first direction to facilitate the operation of the electrical cabinet units.

[0021] In some embodiments, the electrical cabinet units are arranged along a first direction to form a first electrical cabinet group and a second electrical cabinet group, the first electrical cabinet group and the second electrical cabinet group are arranged along a second direction to form two rows, and the cabinet doors of the first electrical cabinet group and the second electrical cabinet group are arranged back to back with each other; wherein the second direction is perpendicular to both the direction of gravity and the first direction.

[0022] By adopting the above-mentioned technical solution, the electrical cabinet units are arranged along the first direction to form the first electrical cabinet group and the second electrical cabinet group, and the cabinet doors of the first electrical cabinet group and the second electrical cabinet group are arranged back to back, thereby improving the energy density of the energy storage equipment, and the cabinet doors of the first electrical cabinet group and the second electrical cabinet group outside the electrical cabinet frame can be operated and maintained, effectively improving the convenience of operation.

[0023] In some embodiments, the energy storage device includes a first water inlet pipe, a first water outlet pipe, a second water inlet pipe and a second water outlet pipe. The first water inlet pipe and the first water outlet pipe are both connected to the first electrical cabinet group, and the first water inlet pipe and the first water outlet pipe are both arranged along the first direction; the second water inlet pipe and the second water outlet pipe are both connected to the second electrical cabinet group, and the second water inlet pipe and the second water outlet pipe are both arranged along the first direction.

[0024] By adopting the above-mentioned technical solution, the first water inlet pipe and the first water outlet pipe can be used to circulate the cooling medium into the first electric cabinet group and achieve cooling, and the first water inlet pipe and the first water outlet pipe are arranged along the first direction, that is, the arrangement direction of the first water inlet pipe and the first water outlet pipe is the same as the arrangement direction of the first electric cabinet group, which can effectively improve the regularity and compactness of the arrangement of the first water inlet pipe and the first water outlet pipe, so as to improve the space utilization rate of the energy storage equipment; similarly, the layout in which the second water inlet pipe and the second water outlet pipe are respectively arranged along the first direction can also improve the regularity and compactness of the arrangement of the second water inlet pipe and the second water outlet pipe, and improve the space utilization rate of the energy storage equipment.

[0025] In some embodiments, the energy storage device also includes a third water inlet pipe, a third water outlet pipe, a fourth water inlet pipe and a fourth water outlet pipe; the first water inlet pipe is connected to the third water inlet pipe, and the first water outlet pipe is connected to the third water outlet pipe; the third water inlet pipe and the third water outlet pipe are arranged on the side of the external frame in the second direction and facing the first electric cabinet group, and the third water inlet pipe and the third water outlet pipe are located between the external frame and the electric cabinet frame; the second water inlet pipe is connected to the fourth water inlet pipe, and the second water outlet pipe is connected to the fourth water outlet pipe, the fourth water inlet pipe and the fourth water outlet pipe are arranged on the side of the external frame in the second direction and facing the second electric cabinet group, and the fourth water inlet pipe and the fourth water outlet pipe are located between the external frame and the electric cabinet frame.

[0026] By adopting the above technical solution, the third water inlet pipe and the third water outlet pipe are respectively connected to the first water inlet pipe and the first water outlet pipe, so that the cooling medium is introduced from the first water inlet pipe and discharged from the first water outlet pipe, and the first water inlet pipe and the first water outlet pipe are located between the external frame and the electric cabinet frame, which can improve the compactness of the layout of the first water inlet pipe and the first water outlet pipe, reduce the space occupied by the first water inlet pipe and the first outlet pipe, thereby improving the space utilization of the energy storage equipment and reducing the space occupied by the energy storage equipment.

[0027] In some embodiments, the third water inlet pipe and the third water outlet pipe are both in communication with the power module.

[0028] By adopting the above technical solution, the third water inlet pipe and the third water outlet pipe located on one side of the external frame can be directly connected to the power module, so as to achieve the purpose of cooling the power module.

[0029] In some embodiments, the power module is provided with an input line bus and an output line bus, which are arranged on either side of the external frame in the second direction, and are located between the external frame and the electrical cabinet frame.

[0030] By adopting the above technical solution, the incoming line bus and the outgoing line bus are arranged between the external frame and the cabinet frame. Therefore, when the terminal block is connected to the incoming line bus and the outgoing line bus, the terminal block will be routed between the external frame and the cabinet frame, thereby improving the compactness of the routing layout and further improving the space utilization of the energy storage equipment.

[0031] In some embodiments, the energy storage device further includes a shielding cover, which is disposed on the electrical cabinet frame and the external frame, and is used to cover at least a portion of the electrical cabinet frame and at least a portion of the external frame.

[0032] By adopting the above technical solution, the shielding cover can provide voltage equalization protection for the electric cabinet frame and the external frame, thereby reducing the probability of tip discharge.

[0033] In a second aspect, an embodiment of the present application further provides an energy storage valve tower, comprising the energy storage device as described above.

[0034] Beneficial effects of the embodiments of the present application: The energy storage valve tower provided in the embodiments of the present application includes the above-mentioned energy storage device. When the energy storage device can be transported more conveniently, the transportation and assembly operations of the energy storage valve tower are also more convenient.

[0035] In some embodiments, the energy storage devices are stacked along the direction of gravity.

[0036] By adopting the above technical solution, the energy storage equipment can be assembled by stacking in the direction of gravity, thereby effectively reducing the floor space occupied by the energy storage valve tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0038] FIG1 is a schematic structural diagram of an energy storage valve tower provided in an embodiment of the present application;

[0039] FIG2 is a schematic diagram of the pipeline and line arrangement structure of the energy storage valve tower provided in an embodiment of the present application;

[0040] FIG3 is a schematic structural diagram of an energy storage device provided in an embodiment of the present application;

[0041] FIG4 is a schematic structural diagram of an electrical cabinet module provided in an embodiment of the present application;

[0042] FIG5 is a schematic structural diagram of a bus module and a power module provided in an embodiment of the present application.

[0043] Among them, the reference numerals in the figures are:

[0044] 1000, energy storage valve tower; 100, energy storage equipment; 200, insulation structure; 300, insulation base;

[0045] 10. Electric cabinet module; 11. Electric cabinet frame; 12. Electric cabinet unit; 121. First electric cabinet group; 122. Second electric cabinet group;

[0046] 20. Power module; 21. Incoming line bus; 22. Outgoing line bus; 30. Bus module;

[0047] 40. External frame; 41. First frame portion; 42. Second frame portion;

[0048] 50. Limiting device; 51. Top limiting structure; 52. Bottom limiting structure;

[0049] 61. First water inlet pipe; 62. Second water inlet pipe; 63. Third water inlet pipe; 64. Fourth water inlet pipe;

[0050] 71, first water outlet pipe; 72, second water outlet pipe; 73, third water outlet pipe; 74, fourth water outlet pipe;

[0051] 80. Shielding cover;

[0052] A, first direction; B, second direction; G, direction of gravity. DETAILED DESCRIPTION

[0053] The following describes in detail embodiments of the present application, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0054] In the description of this application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0055] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0056] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0057] With the rapid development of new energy technologies, the application of high-power power electronic devices is becoming increasingly widespread. For example, high-voltage energy storage devices typically consist of a high-voltage converter valve and a high-voltage energy storage valve. The high-voltage converter valve converts AC and DC power, while the high-voltage energy storage valve delivers power and stores energy. Therefore, a high-voltage converter valve is typically constructed from multiple power modules connected in series. These modules are lightweight and compact, making them easy to install and integrate. This also results in a compact overall structure and a simple layout for the high-voltage converter valve.

[0058] High-pressure energy storage valves, used to achieve both power output and energy storage, typically require multiple valve modules connected in series. A single valve module consists of a power module, a manifold, and multiple electrical cabinets in parallel. The higher the system voltage and capacity, the greater the number of electrical cabinets required. Furthermore, to meet these electrical connection requirements, the valve module also includes a support frame, water cooling piping, a flow circuit, and shielding components. This results in a bulky and heavy module, making its transportation extremely inconvenient.

[0059] Based on the above considerations, in order to solve the problem that the energy storage equipment is heavy and difficult to transport, an energy storage device is designed. The electrical cabinet unit is installed in the electrical cabinet frame, and the power module and the bus module are respectively hung on the outside of the electrical cabinet frame through the power frame and the bus frame, so that the power module and the bus module are separated from the electrical cabinet module. Therefore, the energy storage device can be disassembled for transportation. The disassembled electrical cabinet module, power module and bus module are lighter than the complete energy storage device, thereby effectively improving the convenience of transportation.

[0060] The energy storage devices disclosed in the embodiments of this application can be used, but are not limited to, in fixed or mobile energy stations, such as energy storage containers, energy storage valve towers, energy storage distribution cabinets, energy storage power stations, and battery swap stations. In some embodiments, the energy storage devices may also include other functional compartments, such as a control compartment and a firefighting compartment. The control compartment is used to manage batteries to achieve the storage and output of electrical energy.

[0061] Below, the energy storage device provided in the embodiments of the present application will be introduced and explained.

[0062] Please refer to Figures 3 and 4. In the first aspect, an embodiment of the present application provides an energy storage device 100, including an electrical cabinet module 10, a power module 20 and a bus module 30. The electrical cabinet module 10 includes an electrical cabinet frame 11 and an electrical cabinet unit 12 arranged in the electrical cabinet frame 11. The electrical cabinet unit 12 includes a cabinet structure (not shown in the figure) and a battery (not shown in the figure) arranged in the cabinet structure. The power module 20 and the bus module 30 are detachably connected to the electrical cabinet frame 11.

[0063] The electrical cabinet module 10 is a component for realizing energy storage, the power module 20 is a component for realizing power output, and the convergence module 30 refers to a module component integrating other components except the electrical cabinet module 10 and the power module 20 .

[0064] The electrical cabinet frame 11 is a frame structure for accommodating the electrical cabinet unit 12. Optionally, the electrical cabinet frame 11 can be constructed by multiple beam structures, for example, it can be constructed to form a rectangular frame, a spherical frame, a cylindrical frame, etc.; or, the electrical cabinet frame 11 can also be a box structure formed by a combination of multiple structural parts such as beam structures and panel structures.

[0065] Optionally, the number of electrical cabinet units 12 may be one or more. When there are multiple electrical cabinet units 12, the electrical cabinet units 12 may be arranged within the electrical cabinet frame 11. For example, the electrical cabinet units 12 may be arranged sequentially to form a row or multiple rows of electrical cabinets, or the electrical cabinet units 12 may be arranged to form an array or a grid structure. The electrical cabinet units 12 may be secured to the electrical cabinet frame 11 via fasteners. The electrical cabinet units 12 may include one or more (two or more) batteries. When there are multiple batteries, the multiple batteries may be connected in series and / or in parallel to form a single unit.

[0066] The power module 20 and the bus module 30 are detachably connected to the cabinet frame 11 of the cabinet module 10. Optionally, the power module 20 and the bus module 30 can be independently and detachably connected to the cabinet frame 11. The power module 20 and the bus module 30 can be installed on the same end side of the cabinet frame 11, or can be installed on different end sides of the cabinet frame 11; alternatively, the power module 20 and the bus module 30 can be installed on the inside of the cabinet frame 11, or on the outside of the cabinet frame 11; alternatively, the power module 20 and the bus module 30 can be first connected as a whole, and then the power module 20 and the bus module 30 can be detachably connected to the cabinet frame 11 as a whole.

[0067] It can be understood that the power module 20 and the bus module 30 can be detachably connected to the electrical cabinet frame 11 in such a way that the power module 20 and the bus module 30 are mounted on the surface of the electrical cabinet frame 11 by fasteners such as bolts and brackets, and the power module 20 and the bus module 30 can be disassembled and assembled by disassembling the fasteners; or, the power module 20 and the bus module 30 can be connected to the electrical cabinet frame 11 by snapping or fastening, and the purpose of disassembly can be achieved by separating the snapping or fastening parts; or, a mounting structure such as a support plate, a fixing frame, etc. can be assembled on the surface of the electrical cabinet module 10, and the power module 20 and the bus module 30 can be mounted on the support plate and the fixing frame by fasteners such as bolts, and the power module 20 and the bus module 30 can be disassembled and assembled relative to the support plate and the fixing frame to achieve the disassembly and assembly of the power module 20 and the bus module 30 relative to the electrical cabinet frame 11.

[0068] The energy storage device 100 provided in the embodiment of the present application is configured such that the power module 20 and the bus module 30 are detachably connected to the electrical cabinet frame 11. When transportation is required, the power module 20 and the bus module 30 can be removed from the electrical cabinet frame 11 of the electrical cabinet module 10, so that the power module 20, the bus module 30, and the electrical cabinet module 10 can be packaged and transported separately. Compared with the overall transportation method, the disassembled power module 20, the bus module 30, and the electrical cabinet module 10 are lighter than the complete energy storage device 100 and can be transported separately, thereby effectively improving the convenience of transportation.

[0069] Please refer to FIG. 3 and FIG. 4 . In some embodiments, the power module 20 and the bus module 30 are detachably connected to the outside of the electrical cabinet frame 11 .

[0070] The power module 20 and the bus module 30 are detachably connected to the outside of the cabinet frame 11. Optionally, the power module 20 and the bus module 30 can be directly connected to the cabinet frame 11 by fastener connection, snap connection, snap fit, etc., and can be removed from the cabinet frame 11; or, the power module 20 and the bus module 30 can be accommodated by a frame structure, and then the frame structure can be detachably connected to the cabinet frame 11, wherein the frame structure can be an integral structural member, and the power module 20 and the bus module 30 are both accommodated in the frame structure, or the frame structure can be two separate frames, and the power module 20 and the bus module 30 are The blocks 30 are respectively accommodated in two frames and then respectively connected to the electrical cabinet frame 11; alternatively, the power module 20 and the convergence module 30 can be detachably connected to the electrical cabinet frame 11 by using a connecting structure, for example, they can be connected to the electrical cabinet frame 11 by using a clamp, a clamp or other structure, and the power module 20 and the convergence module 30 can be removed by opening the clamp or the clamp or other structure; alternatively, mounting parts (such as mounting plates, mounting brackets, etc.) can be used to support and assemble the power module 20 and the convergence module 30, and the mounting parts can be detachably connected to the electrical cabinet frame 11 to achieve detachable connection of the power module 20 and the convergence module 30 relative to the electrical cabinet frame 11.

[0071] It can be understood that the sizes of the electrical cabinet unit 12, the power module 20 and the bus module 30 are quite different. The size of the electrical cabinet unit 12 is relatively larger, while the sizes of the power module 20 and the bus module 30 are relatively small. If the power module 20 and the bus module 30 are installed in the electrical cabinet frame 11 and adjacent to the electrical cabinet unit 12, since the electrical cabinet frame 11 needs to meet the assembly requirements of the larger electrical cabinet unit 12, the spatial volume of the electrical cabinet frame 11 is relatively large. When the power module 20 and the bus module 30 are accommodated in the electrical cabinet frame 11, the space utilization rate of the power module 20 and the bus module 30 is low, which will result in a waste of the internal space of the electrical cabinet frame 11, and further cause the overall volume of the electrical cabinet frame 11 to be too large.

[0072] By accommodating the electrical cabinet unit 12 on the inner side of the electrical cabinet frame 11 and hanging the power module 20 and the junction module 30 on the outside of the electrical cabinet frame 11, the power module 20, the junction module 30 and the electrical cabinet unit 12 with large size differences can be arranged separately. The electrical cabinet frame 11 is only used to accommodate the electrical cabinet unit 12. The space utilization rate inside the electrical cabinet frame 11 is high, and the electrical cabinet unit 12 is arranged more compactly, thereby effectively reducing the overall volume of the electrical cabinet frame 11; at the same time, hanging the power module 20 and the junction module 30 on the outside of the electrical cabinet frame 11 can improve the convenience of maintenance operations on the power module 20 and the junction module 30.

[0073] Please refer to Figures 3 to 5. In some embodiments, the energy storage device 100 further includes an external frame 40. The external frame 40 is detachably connected to the outside of the electrical cabinet frame 11. The power module 20 and the bus module 30 are accommodated in the external frame 40.

[0074] Among them, the external frame 40 is used to accommodate the power module 20 and the convergence module 30. The external frame 40 can be formed by one or more combinations of beam structures, plate structures, bracket structures, etc.; for example, the external frame 40 can be a rectangular frame formed by a combination of beam structures, and the power module 20 and the convergence module 30 can be arranged in the rectangular frame in the horizontal direction or the direction of gravity.

[0075] The external frame 40 can be detachably connected to the outside of the electric cabinet frame 11. Optionally, the external frame 40 can be installed on the outside of the electric cabinet frame 11 by fasteners such as bolts and screws, and the external frame 40 can be removed by removing the bolts and screws; or, a connecting structure such as a connecting plate, a connecting bracket, etc. can be set on the electric cabinet frame 11, and the external frame 40 can be installed on the connecting structure such as the connecting plate and the connecting bracket to achieve the purpose of assembly on the electric cabinet frame 11.

[0076] In this arrangement, the external frame 40 is used to accommodate the power module 20 and the convergence module 30, so that the power module 20 and the convergence module 30 can be removed at the same time by removing the external frame 40 from the electrical cabinet frame 11, thereby improving the disassembly and assembly efficiency, and at the same time improving the regularity of the power module 20 and the convergence module 30 assembled on the electrical cabinet module 10.

[0077] Please refer to Figures 3 to 5. In some embodiments, the external frame 40 includes a first frame portion 41 and a second frame portion 42 arranged in the direction of gravity. The power module 20 is accommodated in the first frame portion 41, and the convergence module 30 is accommodated in the second frame portion 42.

[0078] The first frame portion 41 and the second frame portion 42 are two parts on the external frame 40 ; the external frame 40 may be provided with a mounting beam or a mounting plate thereon to divide the external frame 40 into two upper and lower frame portions.

[0079] Optionally, the first frame portion 41 may be located below the second frame portion 42 in the direction of gravity, so that the power module 20 is located below the bus module 30; or the second frame portion 42 may be located below the first frame portion 41 in the direction of gravity, so that the bus module 30 is located below the power module 20;

[0080] In some specific embodiments, the external frame 40 is a rectangular frame formed by combining multiple module beams, and a mounting beam is provided in the middle of the rectangular frame in the direction of gravity, so that the frame structure of the external frame 40 located on the upper part of the mounting beam forms a second frame part 42, and the frame structure of the external frame 40 located on the lower part of the mounting beam forms a first frame part 41, so that the power module 20 can be accommodated in the first frame part 41 below, and the convergence module 30 can be accommodated in the second frame part 42 above.

[0081] With this arrangement, the power module 20 and the bus module 30 are respectively accommodated in the first frame portion 41 and the second frame portion 42 , so that the power module 20 and the bus module 30 are arranged in sequence along the gravity direction, so as to facilitate maintenance operations on the power module 20 and the bus module 30 .

[0082] Please refer to FIG. 3 to FIG. 5 . In some embodiments, the energy storage device 100 further includes a limiting device 50 . The limiting device 50 is disposed on the electrical cabinet frame 11 and is connected to the external frame 40 .

[0083] The limiting device 50 is used to provide limiting support for the external frame 40; the limiting device 50 can limit and fix the external frame 40 on the electrical cabinet frame 11; or, the limiting device 50 can also limit the installation position of the external frame 40 to achieve the installation position of the external frame 40 being limited, and then the external frame 40 and the electrical cabinet frame 11 are connected.

[0084] Among them, the limiting device 50 is set on the electric cabinet frame 11, and the limiting device 50 can be connected to the electric cabinet frame 11 through fasteners (such as bolts, screws, etc.), or the limiting device can also be assembled on the electric cabinet frame 11 through an auxiliary structure (such as a connecting plate, an L-shaped bracket, etc.).

[0085] Optionally, the limiting device 50 includes, but is not limited to, a limiting plate, a limiting frame, a limiting rod, a limiting frame, and other structures. For example, in some embodiments, the limiting device 50 includes a limiting plate, which can be mounted on the electrical cabinet frame 11, and the external frame 40 can be placed on the limiting plate. The limiting plate supports and limits the position of the external frame 40, thereby achieving the purpose of limiting and fixing the external frame 40 on the electrical cabinet frame 11, effectively improving the convenience of the installation operation.

[0086] In this arrangement, the limiting device 50 is used to support and limit the position of the external frame 40, so that when the external frame 40 is connected to the electrical cabinet frame 11, the external frame 40 can also be limited and supported by the limiting device 50, effectively improving the installation stability of the external frame 40.

[0087] Please refer to Figures 3 to 5. In some embodiments, the limiting device 50 includes a top limiting structure 51 and a bottom limiting structure 52. The top limiting structure 51 and the bottom limiting structure 52 are both connected to the electrical cabinet frame 11. In the direction of gravity, the top limiting structure 51 abuts against the top end of the external frame 40, and the bottom limiting structure 52 abuts against the bottom end of the external frame 40.

[0088] Optionally, the top limiting structure 51 includes but is not limited to limiting brackets, limiting blocks, limiting plates, limiting rods, etc., and the top limiting structure 51 can be connected to the electrical cabinet frame 11, and the top limiting structure 51 can also be connected to the top of the external frame 40 to achieve a limiting connection to the external frame 40; the bottom limiting structure 52 includes but is not limited to limiting brackets, limiting blocks, limiting plates, limiting rods, limiting sliders, etc., and the bottom limiting structure 52 can be connected to the electrical cabinet frame 11, and the bottom limiting structure 52 can also be connected to the bottom of the external frame 40 to achieve a limiting support for the external frame 40.

[0089] In this arrangement, the top limiting structure 51 and the bottom limiting structure 52 are used to act together on the top and bottom ends of the external frame 40, thereby supporting and limiting the external frame 40 in the direction of gravity, which can effectively improve the accuracy of the installation of the external frame 40 and improve the stability of the external frame 40 after installation.

[0090] For example, in some specific embodiments, the top limiting structure 51 includes a limiting bracket, and the bottom limiting structure 52 includes a limiting support plate and a limiting slide, and the limiting slide is slidably connected to the limiting support plate; during assembly, the limiting support plate is fixedly installed on the electric cabinet frame 11, and then the external frame 40 is installed on the limiting slide, and the limiting slide is driven to move toward the direction close to the electric cabinet frame 11 and abut against the electric cabinet frame 11 by sliding the limiting slide relative to the limiting support plate, and the limiting slide and the limiting support plate are locked and connected by locking members such as bolts; at the same time, the limiting bracket is fixed on the electric cabinet frame 11, and the limiting bracket is fixedly connected to the top of the external frame 40; thus, the limiting support plate and the limiting slide can support and lock the external frame 40 in a position abutting the electric cabinet frame 11, thereby realizing the installation of the external frame 40.

[0091] 3 to 5 , in some embodiments, the electrical cabinet units 12 are sequentially arranged along a first direction A perpendicular to the gravity direction G, and the external frame 40 is disposed on either side of the electrical cabinet frame 11 in the first direction A.

[0092] It can be understood that the first direction A is perpendicular to the gravity direction G. When the electrical cabinet frame 11 forms a rectangular structural frame, the electrical cabinet frame 11 is placed on a plane according to gravity. The first direction A can be the width direction or length direction of the electrical cabinet frame 11 in the plane.

[0093] The electrical cabinet units 12 are arranged sequentially along the first direction A. Optionally, multiple electrical cabinet units 12 can be arranged to form a row of electrical cabinet groups, or multiple electrical cabinet units 12 can be arranged to form two or more rows of electrical cabinet groups. The doors of the electrical cabinet units 12 can be arranged in a direction perpendicular to the first direction A, so that the doors of the multiple electrical cabinet units 12 arranged sequentially can all face outward from the electrical cabinet frame 11, facilitating operation by staff.

[0094] In this arrangement, the electrical cabinet unit 12 can be arranged in sequence in the electrical cabinet frame 11 along the first direction A, and the external frame 40 is arranged on either side of the electrical cabinet frame 11 in the first direction A, so that in the direction perpendicular to the first direction A, the external frame 40 will not block or interfere with the electrical cabinet unit 12, so as to facilitate the operation of the electrical cabinet unit 12.

[0095] Please refer to Figures 3 to 5. In some embodiments, the electrical cabinet units 12 are arranged along a first direction A to form a first electrical cabinet group 121 and a second electrical cabinet group 122. The first electrical cabinet group 121 and the second electrical cabinet group 122 are arranged along a second direction B to form two rows. The cabinet doors of the first electrical cabinet group 121 and the second electrical cabinet group 122 are arranged back to back. The second direction B is perpendicular to both the gravity direction G and the first direction A.

[0096] The second direction B is perpendicular to the gravity direction G and the first direction A, so the first direction A, the second direction B and the gravity direction G are perpendicular to each other; it can be understood that the electric cabinet frame 11 is a three-dimensional structure, and the electric cabinet frame 11 has width parameters, thickness parameters and height parameters; in some embodiments, the gravity direction G is the height direction of the electric cabinet frame 11, and the first direction A can be the width direction of the electric cabinet frame 11, so the second direction B is the thickness direction of the electric cabinet frame 11.

[0097] The first electrical cabinet group 121 is formed by a plurality of electrical cabinet units 12 arranged along a first direction A, for example, one, two, or more electrical cabinet units 12. Similarly, the second electrical cabinet group 122 is also formed by one, two, or more electrical cabinet units 12. The first electrical cabinet group 121 and the second electrical cabinet group 122 are arranged in two rows along a second direction B. The number of electrical cabinet units 12 in the first electrical cabinet group 121 and the number of electrical cabinet units 12 in the second electrical cabinet group 122 can be the same or different.

[0098] For example, in some embodiments, the number of electrical cabinet units 12 in the first electrical cabinet group 121 and the number of electrical cabinet units 12 in the second electrical cabinet group 122 are consistent, so that the electrical cabinet units 12 in the first electrical cabinet group 121 and the electrical cabinet units 12 in the second electrical cabinet group 122 can be placed back to back, that is, the backs of the two electrical cabinet units 12 are close to each other, and the front ends (that is, the cabinet door ends or operating ends) of the two electrical cabinet units 12 are facing away from each other, so that the cabinet doors of the electrical cabinet units 12 in the first electrical cabinet group 121 and the second electrical cabinet group 122 can both face outside the electrical cabinet frame 11, effectively improving the maintenance convenience of the electrical cabinet units 12.

[0099] In this manner, the electrical cabinet units 12 are arranged along the first direction A to form a first electrical cabinet group 121 and a second electrical cabinet group 122, and the cabinet doors of the first electrical cabinet group 121 and the second electrical cabinet group 122 are arranged back to back, thereby improving the energy density of the energy storage device 100, and allowing operation and maintenance of the cabinet doors facing the first electrical cabinet group 121 and the cabinet doors of the second electrical cabinet group 122 outside the electrical cabinet frame 11, thereby effectively improving the convenience of operation.

[0100] Please refer to Figures 2 to 5. In some embodiments, the energy storage device 100 includes a first water inlet pipe 61, a first water outlet pipe 71, a second water inlet pipe 62, and a second water outlet pipe 72. The first water inlet pipe 61 and the first water outlet pipe 71 are both connected to the first electrical cabinet group 121, and the first water inlet pipe 61 and the first water outlet pipe 71 are both arranged along the first direction A; the second water inlet pipe 62 and the second water outlet pipe 72 are both connected to the second electrical cabinet group 122, and the second water inlet pipe 62 and the second water outlet pipe 72 are both arranged along the first direction A.

[0101] The first water inlet pipe 61 and the first water outlet pipe 71 are piping structures for the flow of cooling medium. The first water inlet pipe 61 is connected to the first electrical cabinet group 121, that is, to each electrical cabinet unit 12 within the first electrical cabinet group 121. Thus, the cooling medium can be introduced from the first water inlet pipe 61 into the electrical cabinet units 12 within the first electrical cabinet group 121 to cool the interior of the electrical cabinet units 12. At the same time, the first water outlet pipe 71 is also connected to each electrical cabinet unit 12 within the first electrical cabinet group 121. Thus, the cooling medium cools the electrical cabinet units 12 within the first electrical cabinet group 121 and is discharged from the first water outlet pipe 71, thereby forming a circulation path for the cooling medium.

[0102] Similarly, the second water inlet pipe 62 and the second water outlet pipe 72 are pipeline structures for supplying cooling medium to flow. The second water inlet pipe 62 and the second water outlet pipe 72 are used to supply cooling medium to circulate in the second electric cabinet group 122 to cool down each electric cabinet unit 12 in the second electric cabinet group 122.

[0103] It should be understood that a cooling structure is generally provided inside the first electric cabinet group 121 and the second electric cabinet group 122, such as a water-cooling plate, a water-cooling pipe and other cooling parts; optionally, the cooling structure can be provided as a whole inside the first electric cabinet group 121 and the second electric cabinet group 122 to cool the electric cabinet units 12 in the first electric cabinet group 121 or the second electric cabinet group 122 at the same time; or, each electric cabinet unit 12 in the first electric cabinet group 121 and the second electric cabinet group 122 is provided with an independent cooling structure to cool each electric cabinet unit 12 separately.

[0104] The above-mentioned cooling medium includes but is not limited to cooling liquids with large specific heat capacity such as cooling water and cooling oil.

[0105] The first water inlet pipe 61 and the first water outlet pipe 71 are both arranged along the first direction A, wherein the electrical cabinet units 12 in the first electrical cabinet group 121 are also arranged along the first direction A, that is, the arrangement direction of the first water inlet pipe 61 and the first water outlet pipe 71 is consistent with the arrangement direction of the electrical cabinet units 12 in the first electrical cabinet group 121, so that the first water inlet pipe 61 and the first water outlet pipe 71 can pass by the sides of each electrical cabinet unit 12 in the first electrical cabinet group 121, and each electrical cabinet unit 12 in the first electrical cabinet group 121 is more conveniently connected to the first water inlet pipe 61 and the first water outlet pipe 71, and the path connecting the first water inlet pipe 61 and the first water outlet pipe 71 is shorter; it can effectively reduce the communication path from the electrical cabinet units 12 in the first electrical cabinet group 121 to the first water inlet pipe 61 and the first water outlet pipe 71, and improve the compactness of the arrangement of the first water inlet pipe 61 and the first outlet pipe 71 relative to the first electrical cabinet group 121.

[0106] Similarly, the second water inlet pipe 62 and the second water outlet pipe 72 are both arranged along the first direction A, and the electrical cabinet units 12 in the second electrical cabinet group 122 are also arranged along the first direction A. Therefore, the communication path from the electrical cabinet units 12 in the second electrical cabinet group 122 to the second water inlet pipe 62 and the second water outlet pipe 72 can be effectively reduced, thereby improving the compactness of the arrangement of the second water inlet pipe 62 and the second water outlet pipe 72 relative to the second electrical cabinet group 122; thereby achieving an improvement in the overall space utilization of the energy storage device 100 and reducing the space occupied by the energy storage device 100.

[0107] Alternatively, the first water inlet pipe 61 may be arranged above the first water outlet pipe 71 in the direction of gravity G, thereby allowing the cooling medium to be introduced into the first electrical cabinet group 121 in a top-in, bottom-out manner; alternatively, the first water inlet pipe 61 may be arranged below the first water outlet pipe 71 in the direction of gravity G, thereby allowing the cooling medium to be introduced into the first electrical cabinet group 121 in a bottom-in, top-out manner. Similarly, the second water inlet pipe 62 and the second water outlet pipe 72 may also be arranged sequentially in the height direction to form a top-in, bottom-out or bottom-in, top-out manner for circulating the cooling medium into the second electrical cabinet group 122.

[0108] Please refer to Figures 2 to 5. In some embodiments, the energy storage device 100 also includes a third water inlet pipe 63 and a third water outlet pipe 73. The first water inlet pipe 61 is connected to the third water inlet pipe 63, and the first water outlet pipe 71 is connected to the third water outlet pipe 73. The third water inlet pipe 63 and the third water outlet pipe 73 are arranged on the side of the external frame 40 in the second direction B and toward the first electrical cabinet group 121, and the third water inlet pipe 63 and the third water outlet pipe 73 are located between the external frame 40 and the electrical cabinet frame 11.

[0109] The third water inlet pipe 63 and the third water outlet pipe 73 are pipeline structures for supplying cooling medium to flow; the third water inlet pipe 63 and the third water outlet pipe 73 can be main pipelines for supplying cooling medium to flow, and the cooling medium is introduced from the third water inlet pipe 63 to the first water inlet pipe 61, and then introduced from the first water inlet pipe 61 to the first electric cabinet group 121. At the same time, the cooling medium is discharged from the first electric cabinet group 121 to the first water outlet pipe 71, and then introduced from the first water outlet pipe 71 to the third water outlet pipe 73 for discharge.

[0110] It can be understood that the external frame 40 is disposed on one side of the electrical cabinet frame 11 along the first direction A. Therefore, a concave area is formed between two opposing side surfaces of the external frame 40 in the second direction B and the side of the electrical cabinet frame 11 facing the external frame 40. Thus, in the second direction B, the area between the external frame 40 and the electrical cabinet frame 11 is defined as the area that does not extend beyond the two opposing side surfaces of the external frame 40 in the second direction B along the first direction A, and does not extend beyond the side surface of the electrical cabinet frame 11 facing the external frame 40 along the second direction B.

[0111] The third water inlet pipe 63 and the third water outlet pipe 73 are arranged between the external frame 40 and the electric cabinet frame 11, and the third water inlet pipe 63 and the third water outlet pipe 73 are arranged on the side of the external frame 40 in the second direction B and toward the first electric cabinet group 121, and then the first water inlet pipe 61 and the first water outlet pipe 71 are connected to the third water inlet pipe 63 and the third water outlet pipe 73 respectively.

[0112] Furthermore, the energy storage device 100 also includes a fourth water inlet pipe 64 and a fourth water outlet pipe 74. The second water inlet pipe 62 is connected to the fourth water inlet pipe 64, and the second water outlet pipe 72 is connected to the fourth water outlet pipe 74. The fourth water inlet pipe 64 and the fourth water outlet pipe 74 are arranged on the side of the external frame 40 in the second direction B and toward the second electrical cabinet group 122, and the fourth water inlet pipe 64 and the fourth water outlet pipe 74 are located between the external frame 40 and the electrical cabinet frame 11.

[0113] The fourth water inlet pipe 64 and the fourth water outlet pipe 74 are pipeline structures for supplying cooling medium to flow; the fourth water inlet pipe 64 and the fourth water outlet pipe 74 can be main pipelines for supplying cooling medium to flow, and the cooling medium is introduced from the fourth water inlet pipe 64 to the second water inlet pipe 62, and then introduced from the second water inlet pipe 62 to the second electric cabinet group 122. At the same time, the cooling medium is discharged from the second electric cabinet group 122 to the second water outlet pipe 72, and then introduced from the second water outlet pipe 72 to the fourth water outlet pipe 74 for discharge.

[0114] The fourth water inlet pipe 64 and the fourth water outlet pipe 74 are arranged between the external frame 40 and the electric cabinet frame 11, and the fourth water inlet pipe 64 and the fourth water outlet pipe 74 are arranged on the side of the external frame 40 in the second direction B and toward the second electric cabinet group 122, and then the second water inlet pipe 62 and the second water outlet pipe 72 are connected to the fourth water inlet pipe 64 and the fourth water outlet pipe 74 respectively.

[0115] In this arrangement, the third water inlet pipe 63 and the third water outlet pipe 73 are arranged between one side of the external frame 40 along the second direction B and the electrical cabinet frame 11, and the fourth water inlet pipe 64 and the fourth water outlet pipe 74 are arranged between the other side of the external frame 40 along the second direction B and the electrical cabinet frame 11. This approach can effectively improve the pipeline layout, reduce the space occupied by the third water inlet pipe 63 and the third water outlet pipe 73, further improve the compactness of the energy storage device 100, and improve the space utilization of the energy storage device 100.

[0116] Referring to FIG. 2 to FIG. 5 , in some embodiments, the third water inlet pipe 63 and the third water outlet pipe 73 are both in communication with the power module 20 .

[0117] It can be understood that the third water inlet pipe 63 and the third water outlet pipe 73 are both connected to the power module 20, so that the cooling medium can be introduced into the interior of the power module 20 from the third water inlet pipe 63 and discharged from the power module 20 from the third water outlet pipe 73, realizing a circulation path for the cooling medium.

[0118] It should be understood that cooling structures such as water-cooling plates and water-cooling pipes are generally provided inside the power module 20. Taking the water-cooling plate as an example, the third water inlet pipe 63 introduces the cooling medium into the water-cooling plate, and then the third water outlet pipe 73 leads the cooling medium out of the water-cooling plate. The cooling medium can perform heat exchange and cooling on the inside of the power module 20 in the water-cooling plate.

[0119] Meanwhile, in other embodiments, the fourth water inlet pipe 64 and the fourth water outlet pipe 74 may also be used to connect to the power module 20 to achieve cooling inside the power module 20 .

[0120] In this arrangement, since the third water inlet pipe 63 and the third water outlet pipe 73 are arranged between the external frame 40 and the electrical cabinet frame 11, the third water inlet pipe 63 and the third water outlet pipe 73 are closer to the power module 20, and the path connecting the power module 20 to the third water inlet pipe 63 and the third water outlet pipe 73 is shorter, which can further improve the space utilization of the energy storage device 100.

[0121] Please refer to Figures 2 to 5. In some embodiments, the power module 20 is provided with an input line bus 21 and an output line bus 22. The input line bus 21 and the output line bus 22 are arranged on either side of the external frame 40 in the second direction B, and the input line bus 21 and the output line bus 22 are located between the external frame 40 and the electrical cabinet frame 11.

[0122] The incoming wire bus 21 and the outgoing wire bus 22 refer to conductive structures used by the power module 20 to achieve electrical connection with the outside, such as conductive copper bus bars, etc. The incoming wire bus 21 and the outgoing wire bus 22 can be connected in series through an external bus bar to achieve electrical conduction.

[0123] In this arrangement, the incoming line bus 21 and the outgoing line bus 22 are arranged between the external frame 40 and the electrical cabinet frame 11, so that when the terminal block is connected to the incoming line bus 21 and the outgoing line bus 22, the terminal block will be routed between the external frame 40 and the electrical cabinet frame 11, thereby improving the compactness of the routing layout and further improving the space utilization of the energy storage device 100.

[0124] Please refer to Figures 1 to 3. In some embodiments, the energy storage device further includes a shielding cover 80, which is disposed on the electrical cabinet frame 11 and the external frame 40. The shielding cover 80 is used to cover at least part of the electrical cabinet frame 11 and at least part of the external frame 40.

[0125] Among them, the shielding cover 80 is used to provide equalizing pressure protection for the electrical cabinet frame 11 and the external frame 40. The shielding cover 80 can be made of metal material. For example, the shielding cover 80 can be but is not limited to a copper cover, aluminum cover, steel cover or other metal material equalizing protection structure.

[0126] Optionally, the shielding cover 80 can cover and protect all exposed parts of the electric cabinet frame 11 and the external frame 40; or, the shielding cover 80 can also only cover and protect the tip parts of the electric cabinet frame 11 and the external frame 40 to reduce the probability of tip discharge.

[0127] In some embodiments, the electrical cabinet frame 11 and the external frame 40 are both formed by splicing beam structures. Thus, the connection formed by the intersection of two or more beam structures will form an end with a pointed structure. The shielding cover 80 can be installed at these ends with pointed structures, as shown in Figure 1, to achieve the purpose of preventing tip discharge.

[0128] For example, in some specific embodiments, the energy storage device 100 includes a power module 20, a bus module 30 and an electric cabinet module 10, the electric cabinet module 10 includes an electric cabinet frame 11 and an electric cabinet unit 12 accommodated in the electric cabinet frame 11, the electric cabinet unit 12 is arranged along a first direction A to form a first electric cabinet group 121 and a second electric cabinet group 122, the first electric cabinet group 121 and the second electric cabinet group 122 are arranged in sequence in a second direction B, and the first electric cabinet group 121 and the second electric cabinet group 122 are placed back to back; the power module 20 and the bus module 30 are both accommodated in the external frame 40, and the external frame is divided into two parts. The external frame 40 is installed on the electric cabinet frame 11 through the limit device 50 along the upper and lower sides in the gravity direction G, so as to achieve the purpose of hanging the power module 20 and the convergence module 30 on the electric cabinet module 10; when transportation is required, the external frame 40 and the electric cabinet frame 11 can be separated, so that the electric cabinet frame 11 and the internal electric cabinet unit 12 can be packaged for transportation, and the external frame 40 and the internal power module 20 and the convergence module 30 can be packaged for transportation separately, and the overall energy storage device 100 is split into two parts for transportation, which effectively improves the convenience of transportation.

[0129] Please refer to Figures 1 to 5. In a second aspect, the embodiments of the present application further provide an energy storage valve tower 1000, including the energy storage device 100 as described above.

[0130] The energy storage valve tower 1000 provided in the embodiment of the present application includes the above-mentioned energy storage device 100. When the energy storage device 100 can be transported more conveniently, the transportation and assembly operations of the energy storage valve tower 1000 are also more convenient.

[0131] Referring to FIG. 1 to FIG. 5 , in some embodiments, the energy storage devices 100 are stacked along the gravity direction G.

[0132] It is understandable that the energy storage valve tower 1000 may include one energy storage device 100, or the energy storage valve tower 1000 may include two or more energy storage devices 100. Taking three energy storage devices 100 as an example, the three energy storage devices 100 may be stacked in sequence upward along the gravity direction G, thereby effectively reducing the footprint of the energy storage valve tower 1000.

[0133] When multiple energy storage devices 100 are stacked and assembled along the gravity direction G, the third water inlet pipes 63 of each energy storage device 100 are connected. Similarly, the third water outlet pipes 73, the fourth water inlet pipes 64, and the fourth water outlet pipes 74 of each energy storage device 100 are correspondingly connected, so that the third water inlet pipes 63, the third water outlet pipes 73, the fourth water inlet pipes 64, and the fourth water outlet pipes 74 can form the main pipeline of the entire energy storage valve tower 1000 for the circulation of cooling medium.

[0134] Similarly, when multiple energy storage devices 100 are stacked and assembled along the gravity direction G, the incoming wire bus 21 and the outgoing wire bus 22 provided on the power module 20 of each energy storage device 100 are all located on the same side. The incoming wire bus 21 and the outgoing wire bus 22 of each energy storage device can be connected in series in sequence through the positive wire bus and the negative wire bus of the bus to form a series connection. The positive wire bus and the negative wire bus of the bus are routed along the gravity direction G, and the positive wire bus and the negative wire bus of the bus are located between the external frame 40 and the electrical cabinet frame 11, which can improve the rationality of the spatial layout of the routing and reduce the space occupancy.

[0135] Optionally, an insulating structure 200 can be used to separate two adjacent energy storage devices 100. For example, an insulator can be used to separate the two energy storage devices 100. Furthermore, an insulating base 300 can be used to stack the energy storage devices 100 on the insulating base 300 to further improve the insulation effect of the energy storage valve tower 1000.

[0136] In this configuration, the energy storage devices 100 are stacked along the gravity direction G, which can effectively reduce the floor space of the energy storage valve tower 1000 , and the stacked energy storage devices 100 can be disassembled for easy transportation.

[0137] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. An energy storage device, comprising an electric cabinet module, a power module and a convergence module, wherein the electric cabinet module comprises an electric cabinet frame and an electric cabinet unit arranged in the electric cabinet frame; the electric cabinet unit comprises a cabinet structure and a battery arranged in the cabinet structure, and the power module and the convergence module are detachably connected to the electric cabinet frame.

2. The energy storage device according to claim 1, wherein: The power module and the busbar module are detachably connected to the outer side of the electric cabinet frame.

3. The energy storage device according to claim 2, wherein: It also includes an external hanging frame, which is detachably connected to the outside of the electric cabinet frame, and the power module and the busbar module are accommodated in the external hanging frame.

4. The energy storage device according to claim 3, wherein: The external frame includes a first frame portion and a second frame portion arranged in the gravity direction, the power module is accommodated in the first frame portion, and the confluence module is accommodated in the second frame portion.

5. The energy storage device according to claim 4, wherein: It also includes a limiting device, which is arranged on the electric cabinet frame and connected to the external frame.

6. The energy storage device according to claim 5, wherein: The limiting device includes a top limiting structure and a bottom limiting structure, both of which are connected to the electric cabinet frame; in the direction of gravity, the top limiting structure abuts against the top end of the external frame, and the bottom limiting structure abuts against the bottom end of the external frame.

7. The energy storage device according to any one of claims 3 to 6, wherein: The electric cabinet units are arranged in sequence along a first direction perpendicular to the direction of gravity, and the external hanging frame is arranged on any side of the electric cabinet frame in the first direction.

8. The energy storage device according to claim 7, wherein: The electrical cabinet units are arranged along the first direction to form a first electrical cabinet group and a second electrical cabinet group, the first electrical cabinet group and the second electrical cabinet group are arranged along the second direction to form two rows, and the cabinet doors of the first electrical cabinet group and the second electrical cabinet group are arranged back to back with each other; wherein the second direction is perpendicular to both the gravity direction and the first direction.

9. The energy storage device according to claim 8, wherein: The energy storage device includes a first water inlet pipe, a first water outlet pipe, a second water inlet pipe and a second water outlet pipe. The first water inlet pipe and the first water outlet pipe are both connected to the first electric cabinet group, and the first water inlet pipe and the first water outlet pipe are both arranged along the first direction; the second water inlet pipe and the second water outlet pipe are both connected to the second electric cabinet group, and the second water inlet pipe and the second water outlet pipe are both arranged along the first direction.

10. The energy storage device according to claim 9, wherein: The energy storage device further includes a third water inlet pipe, a third water outlet pipe, a fourth water inlet pipe and a fourth water outlet pipe; The first water inlet pipe is connected to the third water inlet pipe, and the first water outlet pipe is connected to the third water outlet pipe; the third water inlet pipe and the third water outlet pipe are arranged on one side of the external hanging frame in the second direction and facing the first electric cabinet group, and the third water inlet pipe and the third water outlet pipe are located between the external hanging frame and the electric cabinet frame; The second water inlet pipe is connected to the fourth water inlet pipe, the second water outlet pipe is connected to the fourth water outlet pipe, the fourth water inlet pipe and the fourth water outlet pipe are arranged on one side of the external frame in the second direction and facing the second electric cabinet group, and the fourth water inlet pipe and the fourth water outlet pipe are located between the external frame and the electric cabinet frame.

11. The energy storage device according to claim 10, wherein: The third water inlet pipe and the third water outlet pipe are both connected to the power module.

12. The energy storage device according to claim 11, wherein: The power module is provided with an input line row and an output line row, which are arranged on either side of the external frame in the second direction, and are located between the external frame and the electric cabinet frame.

13. The energy storage device according to any one of claims 3 to 12, wherein: It also includes a shielding cover, which is arranged on the electric cabinet frame and the external frame, and is used to cover at least part of the electric cabinet frame and at least part of the external frame.

14. An energy storage valve tower, wherein: Comprising the energy storage device as claimed in any one of claims 1 to 13.

15. The energy storage valve tower according to claim 14, wherein: The energy storage devices are stacked along the direction of gravity.

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