Energy storage device and energy storage system

Abstract

The embodiment of the utility model provides an energy storage device and an energy storage system. The use performance of the energy storage device can be improved. The energy storage device comprises a battery device and a supporting structure, the battery device is contained in the supporting structure, the supporting structure comprises a plurality of supporting frames arranged in the gravity direction, the supporting frames are arranged on an insulator set, each supporting frame comprises a supporting plate and a plurality of supporting frames, and the supporting frames are connected to the surface of the side, away from the insulator set, of the supporting plate; the multiple supporting frames are arranged at intervals in the direction perpendicular to the gravity, and the supporting plate and the multiple supporting frames define a containing space for containing the battery device. The supporting plate comprises at least one groove structure with an opening deviating from the insulator set, and the groove structure is used for containing a part of the battery device.

Description

Technical Field

[0001] This application relates to the technical field of energy storage, and more specifically, to an energy storage device and an energy storage system. Background Art

[0002] Energy storage valve towers have been widely used in grid-level energy storage, high-voltage direct current power transmission, and industrial energy storage due to their high voltage and high-power processing capabilities, high conversion efficiency, and long-term reliability. Moreover, with the continuous increase in the capacity of energy storage power stations, higher requirements have been put forward for the assembly performance of the energy storage valve towers to improve the transportation convenience of the energy storage valve towers.

[0003] Therefore, how to improve the assembly performance of energy storage valve towers has become an urgent technical problem in this field. Summary of the Utility Model

[0004] The embodiments of this application provide an energy storage device and an energy storage system, which can improve the performance of the energy storage device.

[0005] In a first aspect, this application provides an energy storage device, which includes: a battery device and a support structure, and the battery device is accommodated in the support structure; the support structure includes: a plurality of support frames arranged along the gravity direction, and a plurality of the support frames are arranged on an insulator group, and the support frame includes: a support plate and a plurality of support frames, and the support frames are connected to the surface of the support plate on the side away from the insulator group, and a plurality of the support frames are arranged at intervals perpendicular to the gravity direction, wherein the support plate and the plurality of support frames enclose a receiving space for accommodating the battery device.

[0006] In the embodiments of this application, by setting the support structure to include a plurality of support frames arranged along the gravity direction, a plurality of the support frames are arranged on an insulator group, and the support frame is set to include a support plate and a plurality of support frames, and the support frames are connected to the surface of the support plate on the side away from the insulator group, and the support plate and the plurality of support frames enclose a receiving space for accommodating the battery device, so as to carry the battery device through the support structure. Compared with the support structure formed by fixedly connecting a plurality of cross beams and vertical beams in the prior art, the support structure in the embodiments of this application is set to include a support plate and a plurality of support frames connected to each other, which can effectively improve the assembly efficiency of the support structure, and at the same time take into account the manufacturing performance and transportation convenience of the energy storage device, thereby improving the performance of the energy storage device.

[0007] In some embodiments, the support plate includes at least one groove structure with an opening facing away from the insulator group, and the groove structure is used to accommodate a part of the battery device.

[0008] In an embodiment of the present application, the support plate is provided as a groove structure including at least one opening facing away from the insulator group, and the groove structure is used to accommodate a part of the battery device, so as to facilitate fixing the battery device in the accommodation space of the support structure, improve the stability of the battery device in the support structure, effectively improve the space utilization rate of the accommodation space inside the support structure, and at the same time reduce the height of the support structure, thereby improving the assembly performance and service performance of the energy storage device.

[0009] In some embodiments, a plurality of the groove structures correspond to a plurality of the battery devices one by one. In this way, in the embodiment of the present application, by correspondingly arranging a plurality of the groove structures and a plurality of the battery devices one by one, the mutual influence between adjacent two battery devices is reduced, thereby improving the assembly performance and service performance of the energy storage device.

[0010] In some embodiments, a through-hole structure is provided on the bottom wall of the groove structure opposite to the opening, and in a plane perpendicular to the direction of gravity, the orthographic projection of the opening covers the orthographic projection of the through-hole structure.

[0011] In the embodiment of the present application, by providing a through-hole structure on the bottom wall of the groove structure opposite to the opening, and in a plane perpendicular to the direction of gravity, the orthographic projection of the opening covers the orthographic projection of the through-hole structure, so as to reduce the weight of the support structure when the battery device is arranged inside the support structure, taking into account the structural strength and weight of the support structure, thereby facilitating improving the assembly performance and transportation convenience of the energy storage device, and improving the service performance of the energy storage device.

[0012] In some embodiments, the support plate includes at least one first connecting portion and two first cross beams opposite to each other in a first direction, and at least one of the first connecting portions and the two first cross beams enclose at least one of the groove structures, and the first direction is perpendicular to the direction of gravity.

[0013] In the embodiment of the present application, by setting the support plate to include at least one first connecting portion and two first cross beams opposite to each other in the first direction, and at least one of the first connecting portions and the two first cross beams enclose at least one of the groove structures, and the first direction is perpendicular to the direction of gravity, the connection method is simple, so as to facilitate the processing and manufacturing of the support plate, and improve the assembly performance and service performance of the energy storage device.

[0014] In some embodiments, the support frame includes two second cross beams opposite to each other and two first vertical beams opposite to each other, and the two second cross beams and the two first vertical beams are sequentially connected end to end.

[0015] In the embodiments of the present application, by setting the support frame to include two opposite second cross beams and two opposite first vertical beams, and the two second cross beams and the two first vertical beams are connected end to end in sequence, the connection method is simple, which is convenient for the processing and manufacturing of the support frame, and improves the assembly performance and service performance of the energy storage device.

[0016] In some embodiments, the support frame further includes at least one support beam, and the support beam is connected between the second cross beam and the first vertical beam.

[0017] In the embodiments of the present application, by setting the support frame to further include at least one support beam, and the support beam is connected between the second cross beam and the first vertical beam, to improve the structural strength of the support frame, thereby improving the bearing capacity of the support structure, and the connection method is simple and efficient, which is convenient for the processing and manufacturing of the support frame, thereby improving the service performance of the energy storage device.

[0018] In some embodiments, the support frame further includes a third cross beam connected to the two first vertical beams, and the third cross beam is connected to a side of the two first vertical beams away from the insulator group.

[0019] In the embodiments of the present application, by setting the support frame to further include a third cross beam connected to the two first vertical beams, and the third cross beam is connected to a side of the two first vertical beams away from the insulator group, to improve the structural strength of the support frame, and at the same time improve the fixing effect on the battery device, so as to balance the structural strength and bearing performance of the energy storage device.

[0020] In some embodiments, a plurality of the support frames include an adjacent first support frame and a second support frame, the support structure further includes a fourth cross beam, and the fourth cross beam is connected between the first support frame and the second support frame, and the fourth cross beam is connected to a side of the first support frame and the second support frame away from the insulator group.

[0021] In the embodiments of the present application, by setting a plurality of the support frames to include an adjacent first support frame and a second support frame, and the support structure is further set to include a fourth cross beam, the fourth cross beam is connected between the first support frame and the second support frame, and the fourth cross beam is connected to a side of the first support frame and the second support frame away from the insulator group, to effectively balance the structural strength and bearing performance of the support structure, and at the same time improve the stability of the battery device arranged inside the support structure, thereby improving the manufacturing performance and transportation convenience of the energy storage device, and thus improving the service performance of the energy storage device.

[0022] In some embodiments, the support plate and the support frame are connected by bolts or welding. Thus, in the embodiments of the present application, by setting the connection between the support plate and the support frame as bolt connection or welding connection, the connection strength between the support plate and the support frame is improved, and this connection method is simple and efficient, which can effectively improve the assembly efficiency of the support structure, and at the same time improve the manufacturing performance and transportation convenience of the energy storage device, thereby improving the use performance of the energy storage device.

[0023] In some embodiments, multiple support frames include adjacent first support frame and second support frame, and an insulating member is provided between the first support frame and the second support frame.

[0024] In the embodiments of the present application, by setting multiple support frames to include adjacent first support frame and second support frame, and an insulating member is provided between the first support frame and the second support frame, the insulation performance of the support structure is improved to meet the use requirements under different voltages. At the same time, compared with the prior art solution of setting insulators or support members between the first support frame and the second support frame, the height of the support structure can be effectively reduced, so as to improve the assembly performance and transportation convenience of the energy storage device, thereby improving the use performance of the energy storage device.

[0025] In some embodiments, along the opposite direction of the gravity direction, multiple support frames include a third support frame located at the uppermost of the multiple support frames, and a second connecting portion is provided on a side of the third support frame away from the insulator group.

[0026] In the embodiments of the present application, along the opposite direction of the gravity direction, by setting multiple support frames to include a third support frame located at the uppermost of the multiple support frames, and a second connecting portion is provided on a side of the third support frame away from the insulator group, the structural strength of the support structure can be improved, and at the same time, it is convenient to fix the battery device inside the support structure, improve the stability of the battery device arranged inside the support structure, thereby improving the use performance of the energy storage device.

[0027] In some embodiments, multiple support frames include a fourth support frame located at the lowermost of the multiple support frames, and a plurality of first insulator groups are provided on a side of the fourth support frame along the gravity direction. The plurality of first insulator groups are arranged in one-to-one correspondence with the plurality of support frames, and the plurality of first insulator groups are spaced apart along the length direction of the support structure, and the second direction is perpendicular to the first direction.

[0028] In the embodiments of the present application, along the direction of gravity, by arranging a plurality of the support frames to include a fourth support frame located at the bottom of the plurality of support frames, a plurality of first insulator groups are arranged on one side of the fourth support frame along the direction of gravity. The plurality of first insulator groups are arranged in one-to-one correspondence with the plurality of support frames, and the plurality of first insulator groups are spaced apart along a second direction perpendicular to the first direction, so as to improve the support performance and insulation performance of the support structure, and at the same time facilitate the assembly and transportation of the support structure, thereby improving the service performance of the energy storage device.

[0029] In some embodiments, the first insulator group includes a first insulator and a second insulator spaced apart along the first direction, and the first insulator and the second insulator are respectively arranged in one-to-one correspondence with two of the first vertical beams in the support frame.

[0030] In the embodiments of the present application, by arranging the first insulator group to include a first insulator and a second insulator spaced apart along the first direction, and the first insulator and the second insulator are respectively arranged in one-to-one correspondence with two of the first vertical beams in the support frame, so as to effectively improve the supporting effect of the first insulator group on the support frame, taking into account the structural strength and insulation performance of the support structure, thereby improving the service performance of the energy storage device.

[0031] In some embodiments, a third connecting portion is arranged on one side of the first insulator group along the direction of gravity, and the plurality of first insulator groups are arranged in one-to-one correspondence with the plurality of third connecting portions.

[0032] In the embodiments of the present application, by arranging a third connecting portion on one side of the first insulator group along the direction of gravity, and the plurality of first insulator groups are arranged in one-to-one correspondence with the plurality of third connecting portions, so as to effectively improve the supporting effect on the support frame, and at the same time effectively take into account the structural strength and insulation performance of the support structure, thereby improving the service performance of the energy storage device.

[0033] In some embodiments, along the second direction, a fourth connecting portion is arranged between two adjacent third connecting portions among the plurality of third connecting portions.

[0034] In the embodiments of the present application, along the second direction, by arranging the fourth connecting portion to connect two adjacent third connecting portions, so as to further improve the supporting effect on the support frame, effectively taking into account the structural strength and insulation performance of the support structure, thereby improving the service performance of the energy storage device.

[0035] In some embodiments, a plurality of second insulator groups are further arranged on one side of the fourth support frame along the direction of gravity. The support plate of the fourth support frame includes a plurality of the groove structures. The plurality of second insulator groups are arranged in one-to-one correspondence with the plurality of groove structures, and the plurality of second insulator groups are spaced apart along the second direction.

[0036] In the embodiment of the present application, a plurality of second insulator groups are further provided on one side of the fourth support frame along the direction of gravity, and the support plate of the fourth support frame includes a plurality of the groove structures. The plurality of second insulator groups are arranged in one-to-one correspondence with the plurality of groove structures, and the plurality of second insulator groups are arranged at intervals along the second direction, so as to further improve the supporting effect on the support frame through the second insulator groups, effectively taking into account the structural strength and insulation performance of the support structure, thereby improving the service performance of the energy storage device.

[0037] In a second aspect, an energy storage system is provided, which includes a plurality of energy storage devices as described in the first aspect. Description of the Drawings

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments of the present application will be briefly introduced below. Obviously, the following described drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained according to the drawings without creative efforts.

[0039] Figure 1 It is a schematic structural diagram of a support structure provided by an embodiment of the present application.

[0040] Figure 2 It is an exploded structural diagram of a support structure provided by an embodiment of the present application.

[0041] Figure 3 It is a schematic cross-sectional view of a support structure provided by an embodiment of the present application.

[0042] Figure 4 It is a schematic cross-sectional view of a support structure provided by another embodiment of the present application.

[0043] Figure 5 It is a partial structural schematic diagram of a support structure provided by an embodiment of the present application.

[0044] Figure 6 It is a partial structural schematic diagram of a support structure provided by another embodiment of the present application.

[0045] Figure 7 It is a schematic structural diagram of a support structure provided by another embodiment of the present application.

[0046] Figure 8 It is an exploded structural diagram of a support structure provided by another embodiment of the present application.

[0047] Figure 9 It is a schematic structural diagram of a support structure provided by another embodiment of the present application.

[0048] Description of reference numerals in the drawings: 10 - support structure; 20 - support frame; 210 - support plate; 220 - support frame; 30 - insulator group; 40 - accommodation space; 211 - opening; 212 - groove structure; 2121 - bottom wall; 2122 - through - hole structure; 213 - first connecting portion; 214 - first cross - beam; 221 - second cross - beam; 222 - first vertical beam; 215 - support beam; 223 - third cross - beam; 230 - first support frame; 240 - second support frame; 250 - fourth cross - beam; 21 - first support frame; 22 - second support frame; 50 - insulating member; 23 - third support frame; 24 - fourth support frame; 260 - second connecting portion; 60 - first insulator group; 610 - first insulator; 620 - second insulator; 630 - third connecting portion; 640 - fourth connecting portion; 70 - second insulator group.

[0049] In the drawings, the drawings are not drawn to actual scale. Detailed implementation manners

[0050] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art without making creative efforts based on the embodiments in the present application belong to the scope of protection of the present application.

[0051] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by those skilled in the technical field to which the present application belongs; the terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "including" and "having" and any variations thereof in the specification and claims of the present application and the above - mentioned drawings are intended to cover non - exclusive inclusion. The terms "first", "second", etc. in the specification and claims of the present application or the above - mentioned drawings are used to distinguish different objects and are not used to describe a specific order or primary - secondary relationship.

[0052] Referring to "embodiments" in the present application means that specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described in the present application can be combined with other embodiments.

[0053] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "joined", and "attached" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0054] The term "and / or" in the present application is merely an association relationship describing associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in the present application generally represents an "or" relationship between the associated objects before and after.

[0055] In the embodiments of the present application, the same reference numerals represent the same components, and for the sake of brevity, in different embodiments, the detailed description of the same components is omitted. It should be understood that the thickness, length, width, etc. of various components in the embodiments of the present application shown in the drawings, as well as the overall thickness, length, width, etc. of the integrated device, are only for illustrative purposes and should not constitute any limitation to the present application.

[0056] The term "a plurality of" appearing in the present application refers to two or more (including two). Similarly, "a plurality of groups" refers to two or more groups (including two groups), and "a plurality of pieces" refers to two or more pieces (including two pieces).

[0057] If there is no special instruction, all embodiments and optional embodiments of the present application can be combined with each other to form a new technical solution.

[0058] If there is no special instruction, all technical features and optional technical features of the present application can be combined with each other to form a new technical solution.

[0059] The battery device mentioned in the embodiments of the present application may include one or more battery cell components for providing voltage and capacity. The battery cell components may include a plurality of battery cells, and the plurality of battery cells are connected in series, parallel, or in a hybrid connection through a busbar component.

[0060] In some embodiments, the battery cell components are usually formed by arranging a plurality of battery cells.

[0061] As an example, the battery cell component can be a battery module, and the battery module is formed by arranging and fixing a plurality of battery cells to form an independent module. As an example, the battery module can be formed by bundling a plurality of battery cells with cable ties.

[0062] In some embodiments, the battery device may be a battery pack, which includes a box body and one or more battery cell assemblies, and the battery cell assemblies are accommodated in the box body.

[0063] As an example, the battery cell assembly may be a battery module, and the battery cell assembly can be accommodated in the box body by fixing the battery module in the box body.

[0064] The embodiment of the present application provides an energy storage device, which includes one or more battery clusters to improve the voltage and capacity of the energy storage device. The battery cluster may include a plurality of battery devices, and the plurality of battery devices are connected in series through a busbar component to increase the voltage of the energy storage device. When the energy storage device includes a plurality of battery clusters, the plurality of battery clusters are connected in parallel to increase the capacity of the energy storage device.

[0065] The energy storage device can be used in energy storage power stations, wind power generation systems, solar power generation systems, mobile power systems, or temporary power supply systems, etc. The energy storage device can store electrical energy as needed and output electrical energy at an appropriate time. For example, the energy storage device can store electrical energy during low electricity consumption periods and provide electrical energy to relevant users or electrical devices during high electricity consumption periods. The energy storage system provided by the embodiment of the present application can be any power system that requires an energy storage device.

[0066] In some embodiments, the energy storage device may include a cabinet body and one or more battery clusters, and the battery clusters are accommodated in the cabinet body.

[0067] In some embodiments, the energy storage device may include modules such as a thermal management module, a main control module, a total control module, a power distribution module, and a fire protection module.

[0068] As an example, the thermal management module may include a liquid cooling unit, and the liquid cooling unit provides coolant for regulating the temperature of the battery cells to each battery device through pipelines.

[0069] As an example, the main control module can be used as the battery management unit of the battery cluster to monitor and manage the battery cluster. The main control module can monitor information such as the current, voltage, power, or temperature of the battery cluster. For example, it can control the charge and discharge current, voltage, etc. of the battery cluster. The main control module includes an auxiliary battery management unit, a fusion switch, and other modules.

[0070] As an example, the total control module can be used as the battery management unit of the energy storage device to monitor and manage the energy storage device. The total control module can monitor information such as the current, voltage, power, state of charge, or temperature of the energy storage device. For example, it can control the charge and discharge current, voltage, etc. of the energy storage device. As an example, the total control module includes an insulation monitoring module, a main battery management unit, an Ethernet and fiber optic conversion module, and other modules.

[0071] As an example, the fire protection system includes a control panel, detectors, alarm devices, etc., which are used to detect, alarm or extinguish fires in the energy storage system.

[0072] As an example, the power distribution device can be used to distribute power to the power consumption module of the energy storage device.

[0073] Due to its high-voltage and high-power processing capabilities, high conversion efficiency, and long-term reliability, valve towers have been widely used in grid-scale energy storage, high-voltage direct current transmission, and industrial energy storage. As the capacity of energy storage power stations increases, the energy storage system has also been following the trend of high-voltage development. High voltage poses high standards and requirements for the insulation, withstand voltage level, efficiency, economy, and safety of energy storage system devices. Moreover, with the continuous increase in the capacity of energy storage power stations, higher requirements are put forward for the assembly performance of valve towers to improve the transportation convenience of valve towers. Most existing energy storage systems are containerized energy storage systems. As the capacity of energy storage power stations increases, higher requirements are also placed on their efficiency, economy, and safety. Valve towers have unique advantages in large-scale energy storage. The valve tower structure occupies a small area, and the insulation performance of high voltage in large-scale energy storage is easy to achieve, with high safety.

[0074] In high-voltage power transmission projects, the valve tower, as a key energy storage device, includes an electric cabinet module, a busbar module, and a power module. The large number of battery devices in the electric cabinet module results in an expensive and heavy valve tower. The overall weight of the valve tower can reach hundreds of tons. To improve the structural stability of the valve tower and enhance the operation reliability of high-voltage power transmission lines, usually, there are high strength requirements for the support structure used to support the valve tower. The static load-bearing capacity, seismic performance, structural stability, and assembly performance of the support structure all need to meet the requirements for stabilizing the valve tower. The support structure plays a crucial role in the safe and reliable operation of high-voltage power transmission projects. However, in order to meet the requirement of supporting a large weight, the existing support structure is usually designed to be thick, bulky, and heavy. The volume and weight of each component of the support structure are large, resulting in great assembly difficulties during the transportation of the support structure materials or the installation and construction of the support structure. This not only affects the installation efficiency of the support structure but also significantly increases the manufacturing cost of the support structure. Moreover, after the support structure is assembled, it occupies a large area itself, further leading to low space utilization. Therefore, how to achieve the load-bearing of the energy storage system, ensure the stability of the energy storage valve tower, and ensure the transportation convenience of large valve towers has become a design difficulty for lithium battery valve towers. Therefore, how to improve the performance of energy storage devices has become an urgent technical problem in this field.

[0075] Therefore, an energy storage device and an energy storage system are provided in an embodiment of the present application. The energy storage device includes: a battery device and a support structure. The battery device is accommodated in the support structure. The support structure includes: a plurality of support frames arranged along the gravity direction. The plurality of support frames are arranged on an insulator group. And the support frame includes: a support plate and a plurality of support frames. The support frames are connected to the surface of the support plate on the side away from the insulator group. The plurality of support frames are arranged at intervals in a direction perpendicular to the gravity direction. Wherein, the support plate and the plurality of support frames enclose a receiving space for accommodating the battery device. In this way, in the embodiment of the present application, by setting the support structure to include a plurality of support frames arranged along the gravity direction, the plurality of support frames are arranged on the insulator group, and the support frame is set to include a support plate and a plurality of support frames. The support frames are connected to the surface of the support plate on the side away from the insulator group. The support plate and the plurality of support frames enclose a receiving space for accommodating the battery device, so as to carry the battery device through the support structure. Compared with the support structure formed by fixedly connecting a plurality of cross beams and vertical beams in the prior art, the support structure in the embodiment of the present application is set to include a support plate and a plurality of support frames connected to each other, which can effectively improve the assembly efficiency of the support structure, while taking into account the manufacturing performance and transportation convenience of the energy storage device, thereby improving the use performance of the energy storage device.

[0076] Figure 1 Fig. 4 shows a schematic structural diagram of a support structure 10 provided in an embodiment of the present application. Figure 2 Fig. 5 shows an exploded structural diagram of a support structure 10 provided in an embodiment of the present application. Figure 3 Fig. 6 shows a schematic cross-sectional view of a support structure 10 provided in an embodiment of the present application. Figure 4 Fig. 7 shows a schematic cross-sectional view of a support structure 10 provided in another embodiment of the present application. Figure 5 Fig. 8 shows a partial structural diagram of a support structure 10 provided in an embodiment of the present application. Figure 6 Fig. 9 shows a partial structural diagram of a support structure 10 provided in another embodiment of the present application.

[0077] Exemplarily, Figure 2 may be Figure 1 the exploded structural diagram of the support structure 10 shown in Fig. 5. Figure 3 may be Figure 2 a schematic cross-sectional view of the exploded structural diagram of the support structure 10 shown in Fig. 5 in a direction perpendicular to the width direction of the support structure 10. Figure 4 may be Figure 2 a schematic cross-sectional view of the exploded structural diagram of the support structure 10 shown in Fig. 5 in a direction perpendicular to the length direction of the support structure 10. Figure 5 may be Figure 1 a partial structural diagram of the support structure 10 shown in Fig. 8. Figure 6 may be Figure 1Partial structural schematic diagram of the support structure 10 shown therein.

[0078] In some implementations, such as Figures 1 to 6 shown, an embodiment of the present application provides an energy storage device, which includes a battery device (not shown in the figure) and a support structure 10. The battery device is accommodated in the support structure 10. The support structure 10 includes: a plurality of support frames 20 arranged along the gravity direction, and a plurality of the support frames 20 are arranged on an insulator group 30. The support frame 20 includes: a support plate 210 and a plurality of support frames 220. The support frames 220 are connected to the surface of the support plate 210 on the side away from the insulator group 30. A plurality of the support frames 220 are arranged at intervals perpendicular to the gravity direction. Among them, the support plate 210 and the plurality of support frames 220 enclose an accommodation space 40 for accommodating the battery device.

[0079] It should be understood that the support structure 10 in the embodiment of the present application including a plurality of support frames 20 arranged along the gravity direction may mean that the plurality of support frames 20 can be arranged in layers in sequence along the gravity direction, and are fixedly connected between adjacent two support frames 20. Exemplarily, adjacent two support frames 20 in the gravity direction are bolted together.

[0080] It should also be understood that the support frame 20 in the embodiment of the present application includes a support plate 210 and a support frame 220 connected to each other, and the support plate 210 and the support frame 220 can be fixedly connected or detachably connected. Exemplarily, the support plate 210 and the support frame 220 can be bolted or welded together.

[0081] It should also be understood that the support frame 20 in the embodiment of the present application may include a plurality of support frames 220. The plurality of support frames 220 and the support plate 210 enclose an open accommodation space 40, and the accommodation space 40 may include a plurality of sub-accommodation spaces. The accommodation space 40 in the embodiment of the present application can be used to accommodate a battery device, and the accommodation space 40 can also accommodate various devices such as an electrical cabinet module, a power module, a busbar module, a busbar, and a pipeline.

[0082] It should also be understood that a plurality of the support frames 20 are arranged on the insulator group 30, which may mean that the insulator group 30 is fixedly connected or detachably connected to the surface of the support frame 20 on the side along the gravity direction. Exemplarily, the insulator group 30 is bolted to the surface of the support frame 20 on the side along the gravity direction. It should also be understood that a flange is provided on one side of the insulator group 30 facing the support frame 20, and the insulator group 30 is bolted to the support frame 20 through the flange.

[0083] It should also be understood that the material of the insulators in the insulator group 30 in the embodiments of the present application can be set to one of the following: alumina, zirconia, boron nitride, glass, polypropylene, polyethylene, polyimide, polytetrafluoroethylene.

[0084] In the embodiments of the present application, by setting the support structure 10 to include a plurality of support frames 20 arranged along the gravity direction, a plurality of the support frames 20 are arranged on the insulator group 30, and the support frame 20 is set to include a support plate 210 and a plurality of support frames 220. The support frame 220 is connected to the surface of the support plate 210 on the side away from the insulator group 30. The support plate 210 and the plurality of support frames 220 enclose an accommodation space 40 for accommodating the battery device, so as to carry the battery device through the support structure 10. Compared with the support structure 10 formed by fixedly connecting a plurality of cross beams and vertical beams in the prior art, the support structure 10 in the embodiments of the present application is set to include a support plate 210 and a plurality of support frames 220 that are connected to each other, which can effectively improve the assembly efficiency of the support structure 10, while taking into account the manufacturing performance and transportation convenience of the energy storage device, thereby improving the use performance of the energy storage device.

[0085] In some implementation manners, such as Figure 2 and Figure 5 as shown, the support plate 210 includes at least one groove structure 212 with an opening 211 facing away from the insulator group 30, and the groove structure 212 is used to accommodate a part of the battery device.

[0086] It should be understood that the shape of the opening 211 in the embodiments of the present application can be set according to actual needs. Exemplarily, the shape of the opening 211 can be set according to the shape of the energy storage device. It should also be understood that the shape of the groove structure 212 can also be set according to the shape of the energy storage device.

[0087] It should also be understood that the part of the groove structure 212 for accommodating the battery device may mean that along the gravity direction, a part of the structure of the battery device can be accommodated in the groove structure 212 to fix and limit the battery device. It should also be understood that the number of the groove structures 212 provided on the support plate 210 can be set according to actual needs. Exemplarily, the number of the groove structures 212 can be correspondingly set according to the structure and number of the battery devices.

[0088] In an embodiment of the present application, by setting the support plate 210 to include a groove structure 212 with at least one opening 211 facing away from the insulator group 30, and the groove structure 212 is used to accommodate a part of the battery device, so as to facilitate fixing the battery device in the accommodation space of the support structure 10, improve the stability of the battery device in the support structure 10, effectively improve the space utilization rate of the accommodation space inside the support structure 10, and at the same time reduce the height of the support structure 10, thereby improving the assembly performance and service performance of the energy storage device.

[0089] In some implementation manners, a plurality of the groove structures 212 correspond to a plurality of the battery devices one by one. In this way, in the embodiment of the present application, by setting a plurality of the groove structures 212 to correspond to a plurality of the battery devices one by one, the mutual influence between two adjacent battery devices is reduced, thereby improving the assembly performance and service performance of the energy storage device.

[0090] In some implementation manners, such as Figure 2 and Figure 5 as shown, a through-hole structure 2122 is provided on the bottom wall 2121 of the groove structure 212 opposite to the opening 211. On a plane perpendicular to the gravity direction, the orthographic projection of the opening 211 covers the orthographic projection of the through-hole structure 2122.

[0091] It should be understood that the shape of the through-hole structure 2122 provided on the bottom wall 2121 of the groove structure 212 opposite to the opening 211 can be set according to actual needs. Exemplarily, the shape of the through-hole structure 2122 can be set to a circle, a rectangle, a polygon, etc.

[0092] It should also be understood that on a plane perpendicular to the gravity direction, the orthographic projection of the opening 211 covering the orthographic projection of the through-hole structure 2122 may mean that the area of the orthographic projection of the opening 211 is larger than the area of the orthographic projection of the through-hole structure 2122, so as to fix or limit a part of the battery device in the groove structure 212 while reducing the weight of the support structure 10.

[0093] In the embodiment of the present application, by providing a through-hole structure 2122 on the bottom wall 2121 of the groove structure 212 opposite to the opening 211, and on a plane perpendicular to the gravity direction, the orthographic projection of the opening 211 covers the orthographic projection of the through-hole structure 2122, so as to reduce the weight of the support structure 10 when the battery device is disposed inside the support structure 10, taking into account the structural strength and weight of the support structure 10, thereby facilitating improving the assembly performance and transportation convenience of the energy storage device, so as to improve the service performance of the energy storage device.

[0094] In some implementation manners, such as Figure 4As shown, the support plate 210 includes at least one first connecting portion 213 and two first cross beams 214 opposite to each other in the first direction. At least one of the first connecting portions 213 and the two first cross beams 214 enclose at least one of the groove structures 212, and the first direction is perpendicular to the direction of gravity.

[0095] It should be understood that the cross beam in the first cross beam 214 in the embodiment of the present application is parallel to the plane where the insulator group 30 is located. It should also be understood that at least one first connecting portion 213 and the two first cross beams 214 may be fixedly connected or detachably connected. Exemplarily, the at least one first connecting portion 213 and the two first cross beams 214 may be connected by welding or bolt connection.

[0096] It should also be understood that the first connecting portion 213 in the embodiment of the present application may be a channel steel, and the first cross beam 214 may be an H-shaped steel member. Exemplarily, at least one of the first connecting portions 213 and the first cross beam 214 may be connected by welding to form at least one groove structure 212 for accommodating a part of the battery device.

[0097] It should also be understood that the first direction in the embodiment of the present application may refer to the length direction or the width direction of the support structure 10, and the first direction is perpendicular to the height direction or the direction of gravity of the support structure 10.

[0098] In the embodiment of the present application, by setting the support plate 210 to include at least one first connecting portion 213 and two first cross beams 214 opposite to each other in the first direction, at least one of the first connecting portions 213 and the two first cross beams 214 enclose at least one of the groove structures 212, and the first direction is perpendicular to the direction of gravity. The connection method is simple, which is convenient for the processing and manufacturing of the support plate 210, and improves the assembly performance and service performance of the energy storage device.

[0099] In some implementation manners, as Figure 4 shown, the support frame 220 includes two second cross beams 221 opposite to each other in the height direction of the support structure 10 and two first vertical beams 222 opposite to each other in the first direction. The two second cross beams 221 and the two first vertical beams 222 are connected end to end in sequence.

[0100] It should be understood that the cross beam in the second cross beam 221 in the embodiment of the present application is parallel to the assembly plane, and the first vertical beam 222 in the embodiment of the present application is perpendicular to the assembly plane. The assembly plane may be the plane where the insulator group 30 is located.

[0101] It should also be understood that the two second crossbeams 221 and the two first vertical beams 222 are connected end to end in sequence, which may mean that the two second crossbeams 221 and the two first vertical beams 222 are fixedly connected or detachably connected in sequence. Exemplarily, the two second crossbeams 221 and the two first vertical beams 222 may be connected by welding or bolting.

[0102] In the embodiment of the present application, by setting the support frame 220 to include two second crossbeams 221 opposite to each other in the height direction of the support structure 10 and two first vertical beams 222 opposite to each other in the first direction, and the two second crossbeams 221 and the two first vertical beams 222 are connected end to end in sequence, this connection method is simple, which is convenient for the processing and manufacturing of the support frame 220, and improves the assembly performance and service performance of the energy storage device.

[0103] In some implementation manners, such as Figure 4 shown, the support frame 220 further includes at least one support beam 215, and the support beam 215 is connected between the second crossbeam 221 and the first vertical beam 222.

[0104] It should be understood that the support beam 215 in the embodiment of the present application being connected between the second crossbeam 221 and the first vertical beam 222 may mean that the support beam 215 can be fixedly connected or detachably connected to the second crossbeam 221 and the first vertical beam 222 respectively. Exemplarily, the support beam 215 can be welded or bolted to the second crossbeam 221 and the first vertical beam 222 respectively. It should also be understood that in the embodiment of the present application, the support beam 215 can also be called a diagonal beam, that is, the support beam 215 can be inclined relative to the second crossbeam 221 or the first vertical beam 222.

[0105] In the embodiment of the present application, by setting the support frame 220 to further include at least one support beam 215, and the support beam 215 is connected between the second crossbeam 221 and the first vertical beam 222, the structural strength of the support frame 220 is improved, thereby improving the bearing capacity of the support structure 10, and this connection method is simple and efficient, which is convenient for the processing and manufacturing of the support frame 220, and thus improves the service performance of the energy storage device.

[0106] Figure 7 The structural schematic diagram of the support structure 10 provided by another embodiment of the present application is shown. Figure 8 The exploded structural schematic diagram of the support structure 10 provided by another embodiment of the present application is shown. Exemplarily, Figure 8 can be Figure 7 the exploded structural schematic diagram of the support structure 10 shown in

[0107] In some implementation manners, such as Figure 7 and Figure 8As shown, the support frame 220 further includes a third cross beam 223 connected to two of the first vertical beams 222, and the third cross beam 223 is connected to a side of the two first vertical beams 222 away from the insulator group 30.

[0108] It should be understood that the cross beam in the third cross beam 223 in the embodiments of the present application refers to being arranged parallel to the assembly plane, and the assembly plane may be the plane where the insulator group 30 is located.

[0109] It should also be understood that the third cross beam 223 being connected to a side of the two first vertical beams 222 away from the insulator group 30 may mean that the third cross beam 223 is fixedly connected or detachably connected to a side of the two first vertical beams 222 away from the insulator group 30. Exemplarily, the third cross beam 223 may be welded or bolted to a side of the two first vertical beams 222 away from the insulator group 30.

[0110] In the embodiments of the present application, by setting the support frame 220 to further include a third cross beam 223 connected to two of the first vertical beams 222, and the third cross beam 223 is connected to a side of the two first vertical beams 222 away from the insulator group 30, the structural strength of the support frame 220 is improved, and at the same time, the fixing effect on the battery device is improved, so as to take into account the structural strength and bearing performance of the energy storage device.

[0111] In some implementation manners, as Figure 7 and Figure 8 shown, a plurality of the support frames 220 include an adjacent first support frame 230 and a second support frame 240. The support structure 10 further includes a fourth cross beam 250, and the fourth cross beam 250 is connected between the first support frame 230 and the second support frame 240, and the fourth cross beam 250 is connected to a side of the first support frame 230 and the second support frame 240 away from the insulator group 30.

[0112] It should be understood that the cross beam in the fourth cross beam 250 in the embodiments of the present application refers to being arranged parallel to the assembly plane, and the assembly plane may be the plane where the insulator group 30 is located.

[0113] It should also be understood that the fourth cross beam 250 is connected between the first support frame 230 and the second support frame 240, and the fourth cross beam 250 is connected to a side of the first support frame 230 and the second support frame 240 away from the insulator group 30, which means that the fourth cross beam 250 can be fixedly connected or detachably connected to the first support frame 230 and the second support frame 240 respectively. Exemplarily, the fourth cross beam 250 can be welded or bolted to the first support frame 230 and the second support frame 240 respectively.

[0114] In the embodiments of the present application, by arranging a plurality of the support frames 220 to include adjacent first support frames 230 and second support frames 240, and the support structure 10 is further arranged to include a fourth cross beam 250, the fourth cross beam 250 is connected between the first support frame 230 and the second support frame 240, and the fourth cross beam 250 is connected to the side of the first support frame 230 and the second support frame 240 away from the insulator group 30, so as to effectively balance the structural strength and load-bearing performance of the support structure 10, while improving the stability of the battery device arranged inside the support structure 10, thereby improving the manufacturing performance and transportation convenience of the energy storage device, and thus improving the use performance of the energy storage device.

[0115] In some implementation manners, such as Figure 5 and Figure 6 shown, the support plate 210 and the support frame 220 are connected by bolts or welded. In this way, in the embodiments of the present application, by arranging the connection between the support plate 210 and the support frame 220 to be connected by bolts or welded, so as to improve the connection strength between the support plate 210 and the support frame 220, and this connection method is simple and efficient, which can effectively improve the assembly efficiency of the support structure 10, while improving the manufacturing performance and transportation convenience of the energy storage device, and thus improving the use performance of the energy storage device.

[0116] Figure 9 Fig. 11 shows a schematic structural diagram of a support structure 10 provided by another embodiment of the present application.

[0117] In some implementation manners, such as Figures 1 to 4 、 Figures 7 to 9 shown, a plurality of the support frames 20 include adjacent first support frames 21 and second support frames 22, and an insulating member 50 is arranged between the first support frame 21 and the second support frame 22.

[0118] It should be understood that the insulating member 50 in the embodiments of the present application can be arranged between adjacent first support frames 21 and second support frames 22. Exemplarily, the insulating member 50 can be arranged between the support plate 210 of the first support frame 21 and the support frame 220 of the second support frame 22.

[0119] It should also be understood that the insulating member 50 in the embodiments of the present application can be arranged in multiple numbers, and multiple insulating members 50 can be arranged in one-to-one correspondence with multiple first vertical beams 222 among multiple support frames 220.

[0120] In the embodiments of the present application, by arranging a plurality of the support frames 20 to include an adjacent first support frame 21 and a second support frame 22, and an insulating member 50 is arranged between the first support frame 21 and the second support frame 22, the insulation performance of the support structure 10 is improved to meet the usage requirements under different voltages. At the same time, compared with the prior art technical solution of arranging insulators or support members between the first support frame 21 and the second support frame 22, the height of the support structure 10 can be effectively reduced, so as to improve the assembly performance and transportation convenience of the energy storage device, thereby improving the usage performance of the energy storage device.

[0121] In some implementation manners, such as Figures 2 to 4 , and Figure 9 shown, along the opposite direction of the gravity direction, a plurality of the support frames 20 include a third support frame 23 located at the uppermost part of the plurality of support frames 20, and a second connection portion 260 is arranged on a side of the third support frame 23 away from the insulator group 30.

[0122] It should be understood that the second connection portion 260 can be fixedly connected or detachably connected to a side of the support frame 220 of the third support frame 23 away from the insulator group 30. Exemplarily, the second connection portion 260 can be welded or bolted to a side of the support frame 220 of the third support frame 23 away from the insulator group 30.

[0123] It should also be understood that at least one concave portion corresponding to at least one groove structure 212 on the support plate 210 can be arranged on a surface of the second connection portion 260 facing the insulator group 30, and the at least one concave portion can correspond to the at least one groove structure 212 one by one, so as to facilitate the assembly and fixation of the battery device.

[0124] In the embodiments of the present application, along the opposite direction of the gravity direction, by arranging a plurality of the support frames 20 to include a third support frame 23 located at the uppermost part of the plurality of support frames 20, and a second connection portion 260 is arranged on a side of the third support frame 23 away from the insulator group 30, the structural strength of the support structure 10 can be improved, and at the same time, it is convenient to fix the battery device inside the support structure 10, improve the stability of the battery device arranged inside the support structure 10, thereby improving the usage performance of the energy storage device.

[0125] In some implementation manners, such as Figures 2 to 4 , Figures 7 to 9As shown, along the direction of gravity, a plurality of such support frames 20 include a fourth support frame 24 located at the bottommost of the plurality of support frames 20. On one side of the fourth support frame 24 along the direction of gravity, a plurality of first insulator groups 60 are provided. The plurality of first insulator groups 60 are arranged in one-to-one correspondence with the plurality of support frames 220, and the plurality of first insulator groups 60 are spaced apart along a second direction perpendicular to the first direction.

[0126] It should be understood that the provision of a plurality of first insulator groups 60 on one side of the fourth support frame 24 along the direction of gravity may mean that the first insulator groups 60 are fixedly connected or detachably connected to the surface of the fourth support frame 24 on the side along the direction of gravity. Exemplarily, the first insulator groups 60 are bolted to the surface of the fourth support frame 24 on the side along the direction of gravity. It should also be understood that a flange is provided on the side of the first insulator group 60 facing the fourth support frame 24, and the first insulator group 60 is bolted to the fourth support frame 24 through the flange.

[0127] It should also be understood that the first insulator group 60 in the embodiments of the present application may include a plurality of insulators, and the plurality of insulators are spaced apart along a first direction perpendicular to the second direction. Exemplarily, when the first direction is the width direction of the support structure 10, the second direction may be the length direction of the support structure 10, or when the first direction is the length direction of the support structure 10, the second direction may be the width direction of the support structure 10.

[0128] It should also be understood that the material of the insulator in the embodiments of the present application may be one of the following: alumina, zirconia, boron nitride, glass, polypropylene, polyethylene, polyimide, polytetrafluoroethylene.

[0129] In the embodiments of the present application, along the direction of gravity, by arranging a plurality of such support frames 20 to include a fourth support frame 24 located at the bottommost of the plurality of support frames 20, a plurality of first insulator groups 60 are provided on one side of the fourth support frame 24 along the direction of gravity, the plurality of first insulator groups 60 are arranged in one-to-one correspondence with the plurality of support frames 220, and the plurality of first insulator groups 60 are spaced apart along a second direction perpendicular to the first direction, so as to improve the support performance and insulation performance of the support structure 10, and at the same time facilitate the assembly and transportation of the support structure 10, thereby improving the use performance of the energy storage device.

[0130] In some implementation manners, as Figure 2 and Figure 4 shown, the first insulator group 60 includes a first insulator 610 and a second insulator 620 spaced apart along the first direction, and the first insulator 610 and the second insulator 620 are respectively arranged in correspondence with two of the first vertical beams 222 in the support frame 220.

[0131] Exemplarily, when the first direction is the width direction of the support structure 10, the first insulator 610 and the second insulator 620 are arranged at intervals along the width direction of the support structure 10. The first insulator 610 and the second insulator 620 respectively correspond to two first vertical beams 222 in a support frame 220. Specifically, in a plane perpendicular to the height direction of the support structure 10, there may be an overlapping area between the orthographic projection of the first insulator 610 and the orthographic projection of a first vertical beam 222, and there may be an overlapping area between the orthographic projection of the second insulator 620 and the orthographic projection of a first vertical beam 222.

[0132] In the embodiment of the present application, by setting the first insulator group 60 to include the first insulator 610 and the second insulator 620 arranged at intervals along the first direction, the first insulator 610 and the second insulator 620 are respectively arranged corresponding to two first vertical beams 222 in the support frame 220, so as to effectively improve the supporting effect of the first insulator group 60 on the support frame 20, taking into account the structural strength and insulation performance of the support structure 10, thereby improving the use performance of the energy storage device.

[0133] In some implementation manners, such as Figures 2 to 5 、 Figures 7 to 9 shown, a third connecting portion 630 is arranged on one side of the first insulator group 60 along the gravity direction, and a plurality of first insulator groups 60 are arranged in one-to-one correspondence with a plurality of third connecting portions 630.

[0134] It should be understood that arranging the third connecting portion 630 on one side of the first insulator group 60 along the gravity direction may mean that there is a fixed connection or a detachable connection between one side of the first insulator group 60 along the gravity direction and the third connecting portion 630. Exemplarily, there is a welded connection or a bolt connection between one side of the first insulator group 60 along the gravity direction and the third connecting portion 630.

[0135] It should also be understood that arranging a plurality of first insulator groups 60 in one-to-one correspondence with a plurality of third connecting portions 630 may mean that a plurality of first insulator groups 60 may be arranged on one side of the fourth support frame 24 along the gravity direction, and a third connecting portion 630 is arranged on one side of the first insulator group 60 along the gravity direction. For example, the first insulator group 60 may include the first insulator 610 and the second insulator 620, and the third connecting portion 630 is bolt-connected to one side of the first insulator 610 and the second insulator 620 along the gravity direction to fix the first insulator 610 and the second insulator 620, improving the supporting performance and insulation performance of the first insulator group 60 on the support structure 10.

[0136] For another example, a flange is provided on one side of the first insulator group 60 along the direction of gravity, and the first insulator group 60 is bolted to the third connecting portion 630 through the flange.

[0137] In the embodiment of the present application, by providing the third connecting portion 630 on one side of the first insulator group 60 along the direction of gravity, and a plurality of the first insulator groups 60 and a plurality of the third connecting portions 630 are arranged in one-to-one correspondence, the supporting effect on the support frame 20 can be effectively improved, and at the same time, the structural strength and insulation performance of the support structure 10 can be effectively taken into account, thereby improving the use performance of the energy storage device.

[0138] In some implementation manners, such as Figure 2 、 Figure 3 、 Figure 5 and Figure 9 As shown, along the second direction, a fourth connecting portion 640 is provided between two adjacent third connecting portions 630 among the plurality of third connecting portions 630.

[0139] It should be understood that a fourth connecting portion 640 is provided between two adjacent third connecting portions 630 among the plurality of third connecting portions 630, which may mean that both sides of the fourth connecting portion 640 along the second direction are fixedly connected or detachably connected to the two third connecting portions 630 respectively, so as to improve the supporting effect of the first insulator group 60 on the support structure 10. Exemplarily, both sides of the fourth connecting portion 640 along the second direction are welded or bolted to the two third connecting portions 630 respectively.

[0140] In the embodiment of the present application, along the second direction, by providing the fourth connecting portion 640 to connect two adjacent third connecting portions 630, the supporting effect on the support frame 20 can be further improved, and the structural strength and insulation performance of the support structure 10 can be effectively taken into account, thereby improving the use performance of the energy storage device.

[0141] In some implementation manners, such as Figure 2 、 Figure 3 and Figure 5 As shown, a plurality of second insulator groups 70 are further provided on one side of the fourth support frame 24 along the direction of gravity. The support plate 210 of the fourth support frame 24 includes a plurality of groove structures 212, and a plurality of the second insulator groups 70 and a plurality of the groove structures 212 are arranged in one-to-one correspondence, and a plurality of the second insulator groups 70 are arranged at intervals along the second direction.

[0142] It should be understood that the support plate 210 of the fourth support frame 24 includes a plurality of groove structures 212, and the plurality of second insulator groups 70 are arranged in one-to-one correspondence with the plurality of groove structures 212. It can be meant that one second insulator group 70 can be arranged on the surface of the area of the support plate 210 of the fourth support frame 24 where the groove structure 212 is provided on one side along the gravity direction. The second insulator group 70 is fixedly connected or detachably connected to the surface of the fourth support frame 24 on one side along the gravity direction. Exemplarily, the second insulator group 70 is bolted to the surface of the fourth support frame 24 on one side along the gravity direction. It should also be understood that a flange is arranged on the side of the second insulator group 70 facing the fourth support frame 24, and the second insulator group 70 is bolted to the fourth support frame 24 through the flange.

[0143] It should also be understood that the second insulator group 70 may include at least one insulator arranged at intervals in the first direction. For example, the second insulator group 70 may include two insulators arranged at intervals in the first direction, and the two insulators are respectively fixedly connected or detachably connected to the two first cross beams 214 of the support plate 210 of the fourth support frame 24. Exemplarily, the two insulators may be respectively bolted to the two first cross beams 214 of the support plate 210 of the fourth support frame 24.

[0144] In the embodiment of the present application, by further arranging a plurality of second insulator groups 70 on one side of the fourth support frame 24 along the gravity direction, and the support plate 210 of the fourth support frame 24 includes a plurality of groove structures 212, the plurality of second insulator groups 70 are arranged in one-to-one correspondence with the plurality of groove structures 212, and the plurality of second insulator groups 70 are arranged at intervals in the second direction, so as to further improve the supporting effect on the support frame 20 through the second insulator groups 70, effectively taking into account the structural strength and insulation performance of the support structure 10, thereby improving the use performance of the energy storage device.

[0145] In some implementation manners, the energy storage device in the embodiment of the present application may also be referred to as an energy storage valve tower, which can be used as a key device in a high-voltage direct-hanging energy storage system to provide a place for multiple high-voltage direct-hanging energy storage valves to achieve energy storage and release. Specifically, the valve tower can be applied to a power system, such as a power transmission system or an energy storage system. The power transmission system also includes a power transmission valve tower, and power equipment is carried on the power transmission valve tower. The power equipment includes a power module, and the shock absorption device can be used to achieve a better shock absorption effect for the power transmission valve tower in the power transmission system. The power transmission valve tower can specifically be a converter valve tower, such as a flexible DC transmission converter valve tower.

[0146] According to some embodiments of the present application, the embodiment of the present application also provides an energy storage system, including the energy storage device in the above embodiment, and the energy storage device carries a battery device.

[0147] According to some embodiments of the present application, referring to Figures 1 to 9 , the present application provides an energy storage device, which includes a battery device and a support structure 10. The battery device is accommodated in the support structure 10. The support structure 10 includes: a plurality of support frames 20 arranged along the gravity direction. A plurality of the support frames 20 are arranged on an insulator group 30. The support frame 20 includes: a support plate 210 and a plurality of support frames 220. The support frame 220 is connected to the surface of the support plate 210 on the side away from the insulator group 30. A plurality of the support frames 220 are arranged at intervals perpendicular to the gravity direction. Wherein, the support plate 210 and the plurality of support frames 220 enclose an accommodation space 40 for accommodating the battery device. The support plate 210 includes at least one groove structure 212 with an opening 211 facing away from the insulator group 30. The groove structure 212 is used to accommodate a part of the battery device. A plurality of the groove structures 212 correspond to a plurality of the battery devices one by one. A through-hole structure 2122 is provided on the bottom wall 2121 of the groove structure 212 opposite to the opening 211. In a plane perpendicular to the gravity direction, the orthographic projection of the opening 211 covers the orthographic projection of the through-hole structure 2122.

[0148] 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 foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be covered within the scope of the claims and the description of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. An energy storage device, characterized in that, Comprising: A battery device and a support structure (10), wherein the battery device is accommodated within the support structure (10); The support structure (10) includes: a plurality of support frames (20) arranged along the direction of gravity, the plurality of support frames (20) are arranged on an insulator group (30), and the support frame (20) includes: A support plate (210) and a plurality of support frames (220), the support frames (220) are connected to the surface of the support plate (210) on the side away from the insulator group (30), and the plurality of support frames (220) are spaced apart along a direction perpendicular to the direction of gravity. Among them, the support plate (210) and the plurality of support frames (220) enclose an accommodation space (40) for accommodating the battery device.

2. The energy storage device according to claim 1, wherein The support plate (210) includes a groove structure (212) with at least one opening (211) facing away from the insulator group (30), and the groove structure (212) is used to accommodate a part of the battery device.

3. The energy storage device according to claim 2, characterized in that The plurality of groove structures (212) correspond to the plurality of battery devices one by one.

4. The energy storage device according to claim 3, characterized in that The bottom wall (2121) of the groove structure (212) opposite to the opening (211) is provided with a through-hole structure (2122). In a plane perpendicular to the direction of gravity, the orthographic projection of the opening (211) covers the orthographic projection of the through-hole structure (2122).

5. The energy storage device according to claim 4, characterized in that, The support plate (210) includes at least one first connecting portion (213) and two first cross beams (214) opposite to each other in a first direction. At least one first connecting portion (213) and the two first cross beams (214) enclose at least one groove structure (212), and the first direction is perpendicular to the direction of gravity.

6. The energy storage device according to claim 5, characterized in that The support frame (220) includes two opposite second cross beams (221) and two opposite first vertical beams (222), and the two second cross beams (221) and the two first vertical beams (222) are connected end to end in sequence.

7. The energy storage device according to claim 6, wherein, The support frame (220) further includes at least one support beam (215), and the support beam (215) is connected between the second cross beam (221) and the first vertical beam (222).

8. The energy storage device according to claim 6, wherein, The support frame (220) further includes a third cross beam (223) connected to the two first vertical beams (222), and the third cross beam (223) is connected to the side of the two first vertical beams (222) away from the insulator group (30).

9. The energy storage device according to claim 6, characterized in that, The plurality of support frames (220) include adjacent first support frames (230) and second support frames (240), and the support structure further includes a fourth cross beam (250). The fourth cross beam (250) is connected between the first support frame (230) and the second support frame (240), and the fourth cross beam (250) is connected to the side of the first support frame (230) and the second support frame (240) away from the insulator group (30).

10. The energy storage device according to any one of claims 1 to 9, characterized in that, The support plate (210) and the support frame (220) are connected by bolts or welding.

11. The energy storage device according to any one of claims 1 to 9, characterized in that, A plurality of the support frames (20) include adjacent first support frame (21) and second support frame (22), and an insulating member (50) is disposed between the first support frame (21) and the second support frame (22).

12. The energy storage device according to any one of claims 1 to 9, characterized in that, In a direction opposite to the gravity direction, a plurality of the support frames (20) include a third support frame (23) located at the uppermost of the plurality of support frames (20), and a second connecting portion (260) is disposed on a side of the third support frame (23) away from the insulator group (30).

13. The energy storage device according to any one of claims 6 to 9, characterized in that, A plurality of the support frames (20) include a fourth support frame (24) located at the lowermost of the plurality of support frames (20), and a plurality of first insulator groups (60) are disposed on a side of the fourth support frame (24) along the gravity direction. The plurality of first insulator groups (60) are arranged in one-to-one correspondence with the plurality of support frames (220), and the plurality of first insulator groups (60) are spaced apart along a second direction perpendicular to the first direction.

14. The energy storage device according to claim 13, wherein, The first insulator group (60) includes a first insulator (610) and a second insulator (620) spaced apart along the first direction, and the first insulator (610) and the second insulator (620) are respectively arranged in correspondence with two of the first vertical beams (222) in the support frame (220).

15. The energy storage device according to claim 13, wherein, A third connecting portion (630) is disposed on a side of the first insulator group (60) along the gravity direction, and the plurality of first insulator groups (60) are arranged in one-to-one correspondence with the plurality of third connecting portions (630).

16. The energy storage device according to claim 15, characterized in that, Along the second direction, a fourth connecting portion (640) is disposed between two adjacent third connecting portions (630) among the plurality of third connecting portions (630).

17. The energy storage device according to claim 13, wherein, A plurality of second insulator groups (70) are further disposed on a side of the fourth support frame (24) along the gravity direction. The support plate (210) of the fourth support frame (24) includes a plurality of groove structures (212), and the plurality of second insulator groups (70) are arranged in one-to-one correspondence with the plurality of groove structures (212), and the plurality of second insulator groups (70) are spaced apart along the second direction.

18. An energy storage system, characterized in that, Including a plurality of energy storage devices according to any one of claims 1 to 17.

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