Base for an energy storage system and energy storage system having the same

Abstract

The utility model provides a kind of base for energy storage system and the energy storage system with it, energy storage system includes battery pack, the bottom of battery pack is equipped with the flange that extends downward, flange extends along the circumferential direction of battery pack, base includes base body, base body includes: top plate, the upper side surface of top plate is formed as the supporting surface for supporting battery pack, base body is formed with the recessed groove that is downward relative to supporting surface, recessed groove extends along the circumferential direction of the base, recessed groove is configured to with the shape of flange adaptation, for accommodating flange.According to the base for energy storage system of the utility model, by setting the recessed groove that is downward relative to supporting surface on base body, flange cooperates with recessed groove, battery pack can be prevented from moving relative to base body, to ensure the reliability of battery pack and base body connection, at the same time, stacked battery pack can be prevented from overturning, to ensure the safety of energy storage system.

Description

Technical Field

[0001] This utility model relates to the field of energy storage system manufacturing technology, and in particular to a base for an energy storage system and an energy storage system having the same. Background Technology

[0002] In existing solutions for energy storage systems, the battery packs are simply stacked on the base without being securely fixed to the base. This makes it easy for the battery packs to fall off the base, compromising the safety of the energy storage system. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. Therefore, this invention provides a base for an energy storage system, which ensures the safety of the energy storage system.

[0004] This application also proposes an energy storage system having the aforementioned base for an energy storage system.

[0005] According to a first aspect embodiment of the present invention, a base for an energy storage system includes a battery pack. The bottom of the battery pack has a downwardly extending protruding edge that extends circumferentially along the battery pack. The base includes a base body, which includes a top plate. The upper surface of the top plate is formed as a support surface for supporting the battery pack. The base body has a recessed clearance groove that is recessed downward relative to the support surface and extends circumferentially along the base. The clearance groove is configured to fit the shape of the protruding edge to accommodate the protruding edge.

[0006] According to the present invention, a base for an energy storage system has a recessed clearance groove on the base body that is recessed downward relative to the support surface. The protruding edge cooperates with the clearance groove to prevent the battery pack from moving relative to the base body, thereby ensuring the reliability of the connection between the battery pack and the base body. At the same time, it can prevent the stacked battery packs from tipping over, thereby avoiding damage from falling battery packs and ensuring the safety of the energy storage system.

[0007] According to some embodiments of the present invention, the clearance groove extends in a ring shape along the circumference of the base, or, in the direction from the center of the top plate toward the periphery, the minimum width of the clearance groove is 1mm-3mm, or, the height of the clearance groove in the vertical direction is 15mm-25mm; or, the maximum height of the base body in the vertical direction is 50mm-100mm.

[0008] According to some embodiments of the present invention, the base body further includes: a side plate, the side plate being connected to the top plate and extending downward, the side plate extending circumferentially along the top plate in an annular shape, and the side plate defining the clearance groove arranged on the outer periphery of the top plate.

[0009] According to some optional embodiments of the present invention, the side plate includes: a first plate segment, which is an annular shape extending in the vertical direction and connected at its upper end to the top plate; a second plate segment, which is also an annular shape extending in the vertical direction and arranged below the first plate segment, wherein the first plate segment is located inside the second plate segment in the horizontal projection plane; and a connecting ring, which is horizontally arranged and connected between the first plate segment and the second plate segment; wherein the upper surface of the connecting ring and the outer surface of the first plate segment cooperate to form the clearance groove.

[0010] According to some optional embodiments of the present invention, the first plate segment is a rectangular ring, and a chamfer is formed at the corner of the first plate segment.

[0011] According to some embodiments of the present invention, the side plate is provided with a fixing member, and the side plate is adapted to be fixedly connected to the convex edge by the fixing member.

[0012] According to some optional embodiments of the present invention, the fixing member includes: a fixing nut disposed on the side plate; and a fastener adapted to pass through the convex edge and be threadedly connected to the fixing nut.

[0013] According to some embodiments of the present invention, there are multiple fasteners, and the multiple fasteners are arranged at intervals along the circumference of the side plate.

[0014] According to some embodiments of the present invention, the side plate is formed with a through hole penetrating the side plate.

[0015] According to some optional embodiments of the present invention, the through hole is formed by an upward recess from the lower edge of the side plate; or, the through hole extends in a long strip shape along the circumference of the side plate; or, there are multiple through holes, and the multiple through holes are arranged at intervals along the circumference of the side plate.

[0016] According to some embodiments of the present invention, the top plate is provided with a mounting port, which is configured for installing a connector that is plugged into and connected to the battery pack.

[0017] According to some embodiments of the present invention, the top plate is provided with a mounting port, which is configured for installing a connector that is plugged into and connected to the battery pack.

[0018] According to some optional embodiments of the present invention, the base for the energy storage system includes: a baffle, one end of which is connected to the top plate, the other end of which extends upward, the baffle extending circumferentially along the mounting opening in an annular shape, and the inner side of the baffle defining a receiving groove suitable for accommodating the connector.

[0019] According to some embodiments of the present invention, the base for the energy storage system includes: a waterproof cover, which is disposed on the lower side of the top plate, the waterproof cover is sealed to the top plate, and the mounting mask is disposed inside it.

[0020] According to some embodiments of the present invention, the base for the energy storage system includes: a sealing member disposed between the waterproof cover and the top plate, and extending in a ring shape along the circumference of the waterproof cover.

[0021] According to some optional embodiments of the present invention, the sealing element is a sealing ring, which abuts against the top plate and the connecting flange; or, the sealing element is a sealant, and the waterproof cover is bonded to the top plate by the sealant.

[0022] According to some embodiments of the present invention, the base body is provided with a reinforcing structure.

[0023] According to some optional embodiments of the present invention, the reinforcing structure is a reinforcing protrusion, which is arranged on the lower side of the top plate, wherein the reinforcing protrusion is formed by a portion of the top plate being recessed downward; or, the lower surface of the reinforcing protrusion is coplanar with the lower end surface of the base body; or, the top plate is a rectangular plate, and the reinforcing protrusion extends along the length direction and / or width direction of the top plate; or, there are multiple reinforcing protrusions, which are spaced apart along the length direction and / or width direction of the top plate.

[0024] According to some embodiments of the present invention, the base further includes: a plurality of rollers, the plurality of rollers being mounted on the reinforcing protrusion, and the base body being supported on the plurality of rollers.

[0025] According to some optional embodiments of the present invention, the reinforcing protrusion is embedded with a mounting nut, the base further includes a mounting member, one end of the mounting member is threadedly connected to the mounting nut, and the roller is rotatably disposed at the other end of the mounting member.

[0026] An energy storage system according to a second aspect of the present invention includes: a base for an energy storage system according to a first aspect of the present invention; a battery pack, the battery pack being supported on the support surface of the base, the bottom of the battery pack having a downwardly extending protruding edge extending circumferentially along the battery pack, the protruding edge engaging within the clearance groove.

[0027] According to the energy storage system of this utility model, by setting a base for the energy storage system in the first aspect embodiment above, and by setting a recessed relief groove on the base body that is recessed downward relative to the support surface, and by having the protruding edge cooperate with the relief groove, the battery pack can be prevented from moving relative to the base body, thereby ensuring the reliability of the connection between the battery pack and the base body. At the same time, it can prevent the stacked battery packs from tipping over, thereby avoiding damage from falling battery packs, and thus ensuring the safety of the energy storage system.

[0028] According to some embodiments of this utility model, the top plate is provided with an installation port, and a connector is installed at the installation port. The base further includes a baffle, one end of which is connected to the top plate, and the other end of which extends upward. The baffle extends in a ring shape along the circumference of the installation port. The connector is located on the inner side of the baffle. The bottom of the battery pack is provided with a insertion groove that matches the outer contour shape of the baffle, and the baffle is fitted into the insertion groove.

[0029] According to some embodiments of the present invention, the lower edge of the convex edge abuts against the bottom wall of the clearance groove.

[0030] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the base at the first angle according to an embodiment of the present utility model;

[0032] Figure 2 yes Figure 1 A schematic diagram of the second angle of the base shown;

[0033] Figure 3 yes Figure 2 A magnified view of a section at point A in the middle;

[0034] Figure 4 yes Figure 1 A schematic diagram of the third angle of the base shown;

[0035] Figure 5 yes Figure 1 A schematic diagram of the fourth angle of the base shown;

[0036] Figure 6 yes Figure 5 A magnified view of a section at point B in the middle;

[0037] Figure 7 yes Figure 1 A schematic diagram of the fifth angle of the base shown;

[0038] Figure 8 yes Figure 1 A schematic diagram of the sixth angle of the base shown;

[0039] Figure 9 This is a schematic diagram of an energy storage system;

[0040] Figure 10 This is an exploded view of an energy storage system.

[0041] Figure label:

[0042] 100. Base;

[0043] 10. Base body; 11. Top plate; 111. Clearance groove; 112. Mounting port; 12. Side plate; 121. First plate segment; 1211. Fastener; 122. Second plate segment; 1221. Through hole; 123. Connecting ring; 13. Reinforcing protrusion; 131. Mounting nut;

[0044] 20. Baffle; 21. Receiving groove;

[0045] 30. Waterproof cover;

[0046] 200. Battery pack; 210. Raised edge;

[0047] 1000. Energy storage system. Detailed Implementation

[0048] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0049] The following is a reference appendix. Figure 1-10 Description of a base 100 for an energy storage system according to an embodiment of the present invention.

[0050] Reference Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 9 and Figure 10 According to the embodiment of the present invention, the base 100 for the energy storage system includes a battery pack 200 (not shown in the figure), and the bottom of the battery pack 200 is provided with a downwardly extending protruding edge 210, which extends along the circumference of the battery pack 200.

[0051] The base 100 includes a base body 10, and the base body 10 includes: a top plate 11, and an upper surface of the top plate 11 (e.g., Figure 1The upper surface of the top plate 11 shown is formed as a support surface for supporting the battery pack 200. The base body 10 is formed with a recessed relief groove 111 that is recessed downward relative to the support surface. The relief groove 111 extends circumferentially along the base 100 and is configured to fit the shape of the protruding edge 210 to accommodate the protruding edge 210.

[0052] It is understood that the bottom of the battery pack 200 is provided with a protruding edge 210. The protruding edge 210 extends downward and extends circumferentially along the bottom of the battery pack 200. The protruding edge 210 can be a closed ring or multiple protruding edges 210. Multiple protruding edges 210 are arranged at intervals along the circumferential direction of the bottom of the battery pack 200, and the protruding edge 210 cooperates with the clearance groove 111.

[0053] For example, such as Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 9 and Figure 10 As shown, the upper surface of the top plate 11 forms a support surface, which is a plane. The base body 10 can be provided with a downwardly recessed relief groove 111 on the periphery of the top plate 11. The base body 10 can also be provided with a downwardly recessed relief groove 111 on the inner side of the top plate 11. The relief groove 111 extends circumferentially along the top plate 11. The protruding edge 210 is accommodated in the relief groove 111. The lower edge of the protruding edge 210 can be supported on the bottom wall of the relief groove 111. The lower edge of the protruding edge 210 can also have a gap with the bottom wall of the relief groove 111. The lower edge of the protruding edge 210 is suspended relative to the bottom wall of the relief groove 111.

[0054] When the battery pack 200 is engaged with the base body 10, the protruding edge 210 extends into the clearance groove 111, and the battery pack 200 is supported on the support surface. It should be noted that if there are multiple battery packs 200, the bottom battery pack 200 is connected to the clearance groove 111 of the base body 10 through the protruding edge 210, and the multiple battery packs 200 on the upper side are stacked, with adjacent battery packs 200 on the upper side engaging with each other, thus achieving the stacking of the battery packs 200 on the base 100.

[0055] The base 100 for an energy storage system of this utility model has a recessed relief groove 111 on the base body 10 that is recessed downward relative to the supporting surface. The protruding edge 210 cooperates with the relief groove 111 to limit the battery pack 200 in the horizontal direction, thereby preventing the battery pack 200 from moving relative to the base body 10. This ensures the reliability of the connection between the battery pack 200 and the base body 10. At the same time, when stacking the battery packs 200, the bottom battery pack 200 can be stably fixed to the base body 10, thereby preventing the stacked battery packs 200 from tipping over and thus avoiding damage from falling. This effectively ensures the safety of the energy storage system 1000.

[0056] Furthermore, the clearance groove 111 can guide the protruding edge 210, enabling quick positioning of the battery pack 200 and the base body 10, thereby saving positioning time and improving fitting efficiency. Additionally, supporting the battery pack 200 on the base 100 raises the battery pack 200 vertically, preventing it from being corroded by liquids on the ground, thus effectively protecting the battery pack 200 and ensuring the safety of the energy storage system 1000.

[0057] According to an embodiment of the present invention, the base 100 for an energy storage system has a recessed relief groove 111 on the base body 10 that is recessed downward relative to the support surface. The protruding edge 210 cooperates with the relief groove to prevent the battery pack 200 from moving relative to the base body 10, thereby ensuring the reliability of the connection between the battery pack 200 and the base body 10. At the same time, it can prevent the stacked battery packs 200 from tipping over, thereby avoiding the battery packs 200 from falling and being damaged, and thus ensuring the safety of the energy storage system 1000.

[0058] According to some embodiments of this utility model, refer to Figure 3 , Figure 5 and Figure 6 The clearance groove 111 extends in a ring shape along the circumference of the base 100. Therefore, the ring-shaped clearance groove 111 is easy to manufacture. On the circumference of the top plate 11, there is no need to consider whether there are positions where the clearance groove 111 is not provided, thus improving manufacturing efficiency. At the same time, the ring-shaped clearance groove 111 can cooperate with both the protruding edges 210 spaced apart along the circumference of the bottom of the battery pack 200 and the protruding edges 210 extending in a ring shape along the circumference of the bottom of the battery pack 200, thereby improving the versatility of the base 100.

[0059] For example, such as Figure 3 , Figure 5 and Figure 6 As shown, the clearance groove 111 is provided on the outer periphery of the top plate 11, and the clearance groove 111 extends in a ring along the outer periphery of the top plate 11.

[0060] Furthermore, such as Figure 3 , Figure 5 and Figure 6 As shown, the minimum width of the clearance groove 111 in the direction from the center of the top plate 11 towards the periphery is 1mm-3mm. Therefore, limiting the minimum width of the clearance groove 111 ensures that the protruding edge 210 can fit within the clearance groove 111, thereby ensuring that the battery pack 200 can properly mate with the base body 10. For example, with... Figure 6 As shown, the minimum width of the clearance groove 111 in the left and right directions can be 1mm, 2mm or 3mm.

[0061] For example, such as Figure 3 , Figure 5 and Figure 6 As shown, the clearance groove 111 includes two first straight segments, two second straight segments, and four corner segments. The two first straight segments extend in the left-right direction and are arranged at intervals in the front-back direction. The two second straight segments extend in the front-back direction and are arranged at intervals in the left-right direction. The four corner segments connect the ends of adjacent first and second straight segments respectively. The width of the corner segments is greater than the width of the first and second straight segments.

[0062] Furthermore, such as Figure 3 , Figure 5 and Figure 6 As shown, the clearance groove 111 is in the vertical direction (e.g.) Figure 6 The height of the clearance groove 111 (shown in the vertical direction) is 15mm-25mm. Therefore, by limiting the height of the clearance groove 111 in the vertical direction, the mating area between the protruding edge 210 and the side wall of the clearance groove 111 can be increased, thereby increasing the stability of the battery pack 200 mating with the base 100, and thus effectively preventing the battery pack 200 from falling off the base 100.

[0063] For example, such as Figure 3 , Figure 5 and Figure 6 As shown, the height of the clearance groove 111 in the vertical direction can be 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm or 25mm.

[0064] Furthermore, such as Figure 3 , Figure 5 and Figure 6 As shown, the base body 10 is in the vertical direction (e.g.) Figure 6 The maximum height (shown in the vertical direction) is 50mm-100mm. This ensures the height of the base body 10, preventing liquid from corroding the battery pack 200 when the ground is wet, thus ensuring the safety of the energy storage system 1000.

[0065] For example, such as Figure 3 , Figure 5 and Figure 6 As shown, the maximum height of the base body 10 in the vertical direction can be 50mm, 55mm, 60mm, 65mm, 70mm, 75mm, 80mm, 85mm, 90mm, 95mm or 100mm.

[0066] According to some embodiments of this utility model, refer to Figure 5 and Figure 6The base body 10 also includes a side plate 12, which is connected to the top plate 11 and extends downward. The side plate 12 extends in a ring shape along the circumference of the top plate 11, and defines a clearance groove 111 arranged on the outer periphery of the top plate 11. Thus, the side plate 12 can support the top plate 11, ensuring that the base body 10 can stably support the battery pack 200. Simultaneously, the side plate 12 can raise the height of the top plate 11 in the vertical direction, effectively preventing ground liquids from corroding the battery pack 200.

[0067] Furthermore, the side plate 12 and the top plate 11 cooperate to form a box-shaped structure with an open bottom. Compared with the solid base body 10 in the prior art, the base body 10 of this application can reduce the weight of the base body 10 and reduce the production cost of the base body 10.

[0068] For example, such as Figure 5 and Figure 6 As shown, the side plate 12 extends in the vertical direction, the upper end of the side plate 12 is connected to the periphery of the top plate 11, the lower end of the side plate 12 is supported on the ground, the side plate 12 extends in a ring along the periphery of the top plate 11, and the outer periphery of the side plate 12 defines an avoidance groove 111.

[0069] According to some optional embodiments of the present invention, refer to Figure 3 , Figure 5 and Figure 6 The side plate 12 includes: a first plate segment 121, a second plate segment 122, and a connecting ring 123. The first plate segment 121 is along the vertical direction (e.g., ...). Figure 3 The second plate segment 122 is a ring extending in the vertical direction (as shown), and its upper end is connected to the top plate 11; Figure 3 The ring extends in the vertical direction as shown and is arranged on the lower side of the first plate segment 121. In the horizontal projection plane, the first plate segment 121 is located inside the second plate segment 122; the connecting ring 123 is horizontally arranged and connects the first plate segment 121 and the second plate segment 122, wherein the upper surface of the connecting ring 123 and the outer surface of the first plate segment 121 cooperate to form an avoidance groove 111.

[0070] In this way, by setting the first plate segment 121, the side plate 12 can be connected to the outer periphery of the top plate 11, thus connecting the top plate 11 with the first plate segment 121. The first plate segment 121 can also support the top plate 11 in the vertical direction. At the same time, by setting the second plate segment 122, the height of the side plate 12 in the vertical direction can be increased, thereby further increasing the height of the top plate 11 in the vertical direction, which can significantly reduce the risk of water immersion of the battery pack 200. Furthermore, through the cooperation of the first plate segment 121, the second plate segment 122 and the connecting ring 123, the clearance groove 111 can be directly defined, thus eliminating the need to process the clearance groove 111, thereby reducing the processing steps of the base body 10 and improving processing efficiency.

[0071] Furthermore, the connecting ring 123 not only defines the bottom wall of the clearance groove 111, but also connects the first plate segment 121 and the second plate segment 122, increasing the connection strength between the first plate segment 121 and the second plate segment 122, thereby improving the functional integration of the connecting ring 123. Moreover, the horizontal extension of the connecting ring 123 allows the bottom wall of the clearance groove 111 to be a plane, facilitating the engagement of the protruding edge 210 with the clearance groove 111.

[0072] For example, such as Figure 3 , Figure 5 and Figure 6 As shown, the first plate segment 121 extends in the vertical direction, and the upper end of the first plate segment 121 is connected to the outer periphery of the top plate 11. The second plate segment 122 extends in the vertical direction, and the lower end of the second plate segment 122 is supported on the ground. The connecting ring 123 is disposed between the first plate segment 121 and the second plate segment 122. The connecting ring 123 extends in the horizontal direction, and the radial inner end of the connecting ring 123 is connected to the lower end of the first plate segment 121. The radial outer end of the connecting ring 123 is connected to the upper end of the second plate segment 122. The first plate segment 121, the connecting ring 123 and the second plate segment 122 define a clearance groove 111.

[0073] According to some optional embodiments of the present invention, refer to Figure 3 , Figure 5 and Figure 6 The first plate segment 121 is a rectangular ring, and the corners of the first plate segment 121 are chamfered.

[0074] In this way, the chamfer can play a guiding and positioning role during the assembly process of the battery pack 200 and the base 100, thereby facilitating the assembly of the battery pack 200 and the base 100. At the same time, it can eliminate the burrs at the corner of the first plate segment 121, thereby preventing the corner of the first plate segment 121 from scratching the battery pack 200 or the operator.

[0075] For example, such as Figure 3 , Figure 5 and Figure 6As shown, the first plate segment 121 is a rectangular ring, and chamfers are formed at all four corners of the first plate segment 121.

[0076] According to some embodiments of this utility model, refer to Figure 1 , Figure 7 and Figure 8 The side plate 12 is provided with a fixing member 1211, and the side plate 12 is adapted to be fixedly connected to the protruding edge 210 through the fixing member 1211. Thus, the side plate 12 and the protruding edge 210 are fixedly connected through the fixing member 1211, which can further increase the connection strength between the battery pack 200 and the base body 10, thereby effectively preventing the battery pack 200 from separating from the base body 10, and thus effectively ensuring the stability of the energy storage system 1000.

[0077] For example, such as 1. Figure 7 and Figure 8 As shown, a fastener 1211 is provided on the first plate segment 121 of the side plate 12. The fastener 1211 is located on the inner side wall of the first plate segment 121, thereby preventing the fastener 1211 from affecting the fit between the protruding edge 210 and the clearance groove 111.

[0078] According to some optional embodiments of the present invention, refer to Figure 1 , Figure 7 and Figure 8 The fastener 1211 includes a fixing nut and a fastener. The fixing nut is located on the side plate 12; the fastener is adapted to pass through the protruding edge 210 and be threadedly connected to the fixing nut. Thus, both the fixing nut and the fastener are conventional components, which can save design costs and reduce the production cost of the fastener 1211. At the same time, the fastener and the fixing nut have a simple mating form and are easy to operate, which can save assembly time and improve assembly efficiency.

[0079] For example, such as Figure 1 , Figure 7 and Figure 8 As shown, the fixing nut is located on the inner side wall of the first plate segment 121. After the fastener passes through the protruding edge 210 and the fixing nut from the outside to the inside, the protruding edge 210 is fastened to the base body 10.

[0080] According to some embodiments of this utility model, refer to Figure 1 , Figure 7 and Figure 8The number of fasteners 1211 is multiple, meaning there can be two, three, four, or more fasteners 1211, which are spaced apart along the circumference of the side plate 12. Therefore, the multiple fasteners 1211 ensure the fixing strength between the protruding edge 210 and the base body 10, effectively preventing the battery pack 200 from separating from the base body 10. Simultaneously, the multiple fasteners 1211 spaced apart along the circumference of the side plate 12 can fix the protruding edge 210 at different positions around the circumference of the side plate 12, thus preventing weak points in the fixing and effectively ensuring the fixing strength.

[0081] For example, such as Figure 1 , Figure 7 and Figure 8 As shown, there are four fasteners 1211. The first plate segment 121 includes a left plate portion and a right plate portion arranged opposite to each other. Two fasteners 1211 are provided on the left plate portion and are arranged at intervals along the front-back direction. The other two fasteners 1211 are provided on the right plate portion and are arranged at intervals along the front-back direction. The four fasteners 1211 are fixed to the convex edge 210 in the circumferential direction of the first plate segment 121.

[0082] According to some embodiments of this utility model, refer to Figure 1 , Figure 7 and Figure 8 The side plate 12 has a through hole 1221. In this embodiment, by providing the through hole 1221, the base body 10 can be moved manually or by forklift by reaching into the through hole 1221, which facilitates the movement of the base body 10. At the same time, the through hole 1221 can also provide ventilation and heat dissipation for the interior of the base body 10, thereby preventing overheating and thermal runaway at the bottom of the battery pack 200.

[0083] According to some embodiments of this utility model, refer to Figure 1 , Figure 7 and Figure 8 The through hole 1221 is formed by an upward indentation from the lower edge of the side plate 12. Thus, the through hole 1221 is simple to form, easy to process, and facilitates improved processing efficiency. At the same time, the through hole 1221 is reasonably positioned, making it convenient for a person or forklift fork to reach in, thereby facilitating the transportation of the base 100.

[0084] For example, such as Figure 1 , Figure 7 and Figure 8 As shown, a through hole 1221 is provided on the second plate segment 122, and the through hole 1221 is formed by an upward recess from the lower edge of the second plate segment 122.

[0085] Furthermore, such as Figure 1 , Figure 7 , Figure 8As shown, the through hole 1221 extends in a long strip along the circumference of the side plate 12. This provides sufficient space for a person's hand or forklift fork to reach in, facilitating the handling of the base 100, while ensuring ventilation area and thus guaranteeing heat exchange efficiency.

[0086] Furthermore, such as Figure 1 , Figure 7 , Figure 8 As shown, there are multiple through holes 1221, meaning there can be two, three, four, or more through holes 1221, which are arranged at intervals along the circumference of the side plate 12. Therefore, when moving the base 100, a position closer to the center of gravity of the base 100 can be selected for handling, effectively preventing the battery pack 200 from falling off the base 100. Simultaneously, the multiple through holes 1221 further increase the ventilation area of ​​the through holes 1221, thereby effectively ensuring the ventilation and heat exchange effect.

[0087] For example, such as Figure 1 , Figure 7 and Figure 8 As shown, there are four through holes 1221. Two through holes 1221 are arranged on opposite sides of the second plate segment 122 in the front-back direction, and the other two through holes 1221 are arranged on opposite sides of the second plate segment 122 in the left-right direction. All through holes 1221 extend into a long strip shape, and the extension length of the through holes 1221 on the front and back sides is greater than the extension length of the through holes 1221 on the left and right sides. This allows for easy insertion of hands or forklift forks, and also ensures the ventilation and heat exchange area of ​​the through holes 1221.

[0088] According to some embodiments of this utility model, refer to Figure 1 , Figure 2 and 4 The top plate 11 is provided with a mounting port 112, which is configured for installing a connector that plugs into the battery pack 200. Therefore, the mounting port 112 facilitates the arrangement of the connector, allowing it to pass through the mounting port 112 and be located inside the lower side of the base body 10, thus preventing the connector from interfering with the fit between the battery pack 200 and the support surface of the top plate 11.

[0089] It should be explained that the battery pack 200 has two plugs, positive and negative. The connectors are connected to the positive and negative plugs of the battery pack 200 to form a closed circuit, so that the battery pack 200 can work normally.

[0090] For example, such as Figure 1 , Figure 2 and Figure 4 As shown, the mounting port 112 extends through the top plate 11 in the vertical direction, and the connector extends into the lower side of the top plate 11 after passing through the mounting port 112.

[0091] According to some optional embodiments of the present invention, refer to Figure 1 , Figure 2 and Figure 4 The base 100 for the energy storage system 1000 includes: a baffle 20, one end of the baffle 20 (e.g., Figure 1 The lower end of the baffle 20 shown is connected to the top plate 11, and the other end of the baffle 20 (as shown) is connected to the top plate 11. Figure 1 The upper end of the baffle 20 shown extends upward, and the baffle 20 extends in a ring shape along the circumference of the mounting opening 112. The inner side of the baffle 20 defines a receiving groove 21 suitable for accommodating the connector.

[0092] In this way, the baffle 20 defines the receiving groove 21, and the connector is located in the receiving groove 21. The baffle 20 can protect the connector in the receiving groove 21. When the battery pack 200 and the base body 10 are engaged, it can prevent the battery pack 200 from squeezing the connector, thereby effectively protecting the connector. At the same time, the baffle 20 can guide the position of the battery pack 200 and the base body 10 to engage, thereby enabling blind insertion of the battery pack 200 and the base body 10, which can reduce the difficulty of engagement and improve the efficiency of engagement.

[0093] For example, such as Figure 1 , Figure 2 and Figure 4 As shown, the lower end of the baffle 20 is connected to the top plate 11, the upper end of the baffle 20 extends upward, the baffle 20 extends in a rectangular ring along the circumference of the mounting opening 112, and the inner side of the baffle 20 defines an upper open receiving groove 21, the part of the connector is located in the receiving groove 21.

[0094] According to some embodiments of this utility model, refer to Figure 1 , Figure 7 and Figure 8 The base 100 for the energy storage system includes: a waterproof cover 30, which is located on the underside of the top plate 11 (e.g., Figure 8 The waterproof cover 30 is sealed to the lower side of the top plate 11 (as shown), and covers the mounting port 112 inside. Thus, by sealing the mounting port 112 with the top plate 11, the waterproof cover 30 creates a sealed space between the waterproof cover 30 and the top plate 11. Simultaneously, since the connector is located inside the mounting port 112, the waterproof cover 30 prevents the connector located in the mounting port 112 from contacting water, thereby effectively protecting the connector.

[0095] For example, such as Figure 1 , Figure 7 and Figure 8As shown, the waterproof cover 30 is located on the lower side of the top plate 11. The waterproof cover 30 is a box-shaped structure with an open upper side. The periphery of the waterproof cover 30 is sealed to the lower surface of the top plate 11. The connector is inserted through the mounting port 112 and is at least partially located within the space defined by the waterproof cover 30 and the top plate 11.

[0096] Furthermore, such as Figure 1 , Figure 7 and Figure 8 As shown, the waterproof cover 30 has a connecting flange around its perimeter. The waterproof cover 30 is connected to the top plate 11 through the connecting flange. The connecting flange can provide a connection part for the connection between the waterproof cover 30 and the top plate 11, making it convenient for the waterproof cover 30 to be connected to the top plate 11.

[0097] According to some optional embodiments of the present invention, refer to Figure 1 , Figure 7 and Figure 8 The waterproof cover 30 and the top plate 11 are connected by fasteners. This fastener connection method is simple and easy to operate, thereby improving assembly efficiency. At the same time, the fastener connection method ensures connection strength and effectively prevents the waterproof cover 30 from separating from the top plate 11.

[0098] For example, such as Figure 1 , Figure 7 and Figure 8 As shown, the fastener passes through the connecting flange and is fixed to the top plate 11, thereby achieving a fixed connection between the waterproof cover 30 and the top plate 11. Furthermore, the fastening connection is a screw connection, which is simple and easy to operate, thereby improving the connection efficiency between the waterproof cover 30 and the top plate 11.

[0099] According to some embodiments of this utility model, refer to Figure 1 , Figure 7 and Figure 8 The base 100 for the energy storage system includes a seal, which is disposed between the waterproof cover 30 and the top plate 11 and extends in a ring shape along the circumference of the waterproof cover 30. Thus, the seal can seal the gap between the waterproof cover 30 and the top plate 11, thereby ensuring the airtightness between the waterproof cover 30 and the top plate 11, effectively preventing liquid ingress, and thus protecting the connectors.

[0100] For example, such as Figure 1 , Figure 7 and Figure 8 As shown, the seal is located between the waterproof cover 30 and the top plate 11, and the seal extends into a rectangular ring.

[0101] According to some optional embodiments of the present invention, refer to Figure 1 , Figure 7 and Figure 8The sealing element is a sealing ring, which abuts against the top plate 11 and the waterproof cover 30. Therefore, the sealing ring can be directly placed on the upper side of the waterproof cover 30. When the waterproof cover 30 and the top plate 11 are engaged, the sealing between the waterproof cover 30 and the top plate 11 is achieved through the compression action of the screw connection, thus effectively ensuring the sealing effect. At the same time, the sealing ring is easy to assemble, thereby improving the assembly efficiency of the sealing ring.

[0102] Furthermore, such as Figure 1 , Figure 7 and Figure 8 As shown, the sealing element is sealant, and the waterproof cover 30 and the top plate 11 are bonded together using sealant. Therefore, the sealant ensures a tight seal between the waterproof cover 30 and the top plate 11. Furthermore, when the waterproof cover 30 and the top plate 11 are screwed together, the pressure generated by the screw connection forces the sealant to flow into the gaps, effectively guaranteeing a tight seal. Further, the sealant is foamed silicone, with a minimum thickness of 2mm in the vertical direction, further ensuring a tight seal.

[0103] According to some embodiments of this utility model, refer to Figure 1 , Figure 2 and Figure 7 The base body 10 is provided with a reinforcing structure. The reinforcing structure can enhance the structural strength of the base body 10, thereby effectively preventing the base 100 from being crushed by the battery pack 200, and thus ensuring the load-bearing capacity of the base 100.

[0104] According to some optional embodiments of the present invention, refer to Figure 1 , Figure 2 and Figure 7 The reinforcing structure is a reinforcing protrusion 13, which is arranged on the lower side of the top plate 11 (e.g., Figure 7 (The lower side of the top plate 11 shown). Thus, the reinforcing protrusion 13 is located on the lower side of the top plate 11, without occupying the space where the battery pack 200 and the base 100 fit together. At the same time, the reinforcing protrusion 13 has a good structural reinforcement effect, thereby ensuring the reinforcement effect of the reinforcing structure on the base 100.

[0105] For example, the reinforcing protrusion 13 can be formed by protruding from the lower surface of the top plate 11. The reinforcing protrusion 13 can be a solid structure, thereby ensuring the structural reinforcement effect of the reinforcing protrusion 13 on the base 100.

[0106] According to some optional embodiments of the present invention, refer to Figure 1 , Figure 2 and Figure 7The reinforcing protrusion 13 is formed by a downward indentation of a portion of the top plate 11. Therefore, the reinforcing protrusion 13 significantly improves the structural strength of the top plate 11 and alters the force transmission path on the top plate 11, distributing concentrated loads to a larger area, thereby effectively enhancing the load-bearing capacity of the base 100. Simultaneously, there is no connecting interface between the reinforcing protrusion 13 and the top plate 11, making the base body 10 a single unit, thus ensuring the overall strength of the base 100. For example, as... Figure 1 , Figure 2 and Figure 7 As shown, the reinforcing protrusion 13 is formed by pressing a portion of the top plate 11 downwards.

[0107] Furthermore, such as Figure 1 , Figure 2 and Figure 7 As shown, the lower surface of the reinforcing protrusion 13 is coplanar with the lower end surface of the base body 10. Thus, the reinforcing protrusion 13 can cooperate with the side plate 12 to jointly support the top plate 11, thereby increasing the stability of the base body 10. At the same time, it can also share the pressure exerted on the base body 10 by the battery pack 200, thereby further improving the load-bearing capacity of the base 100.

[0108] For example, such as Figure 1 , Figure 2 and Figure 7 As shown, the lower surface of the reinforcing protrusion 13 is coplanar with the lower end surface of the second plate segment 122. When the base body 10 is placed on the ground, the lower end edge of the second plate segment 122 and the lower surface of the reinforcing protrusion 13 are both supported on the ground.

[0109] Furthermore, such as Figure 1 , Figure 2 and Figure 7 As shown, the top plate 11 is a rectangular plate, and the reinforcing protrusion 13 is along the length direction of the top plate 11 (e.g., Figure 1 The top plate 11 shown is in the left-right direction and / or width direction (e.g., the left-right direction) and / or width direction). Figure 1 The top plate 11 shown extends in the front-to-back direction. Therefore, the direction of extension of the reinforcing protrusion 13 can be adjusted according to actual needs.

[0110] For example, such as Figure 1 , Figure 2 and Figure 7 As shown, the top plate 11 is a rectangular plate, with the left and right directions of the top plate 11 being the length direction and the front and back directions of the top plate 11 being the width direction. The reinforcing protrusion 13 extends along the width direction of the top plate 11, thereby effectively improving the pressure-bearing capacity of the base 100.

[0111] Furthermore, such as Figure 1 , Figure 2 and Figure 7As shown, there are multiple reinforcing protrusions 13, that is, there can be two, three, four or more reinforcing protrusions 13, which extend along the length of the top plate 11 (e.g., ...). Figure 1 The top plate 11 shown is in the left-right direction and / or width direction (e.g., the left-right direction) and / or width direction). Figure 1 The top plate 11 shown is arranged at intervals in the front-back direction. Thus, multiple reinforcing protrusions 13 can strengthen multiple parts of the top plate 11, thereby effectively ensuring the structural strength of the top plate 11. At the same time, multiple reinforcing protrusions 13 can bear the pressure borne by the base 100, thereby effectively improving the pressure-bearing capacity of the base 100.

[0112] For example, such as Figure 1 and Figure 7 As shown, there are two reinforcing protrusions 13, which extend in the front-to-back direction and are arranged at intervals in the left-to-right direction.

[0113] According to some embodiments of this utility model, refer to Figure 1 , Figure 2 and Figure 7 The base 100 also includes multiple rollers, meaning that the base 100 may include two, three, four, or more rollers. These rollers are mounted on the reinforcing protrusions 13, and the base body 10 is supported by the rollers. Therefore, the rollers facilitate the movement of the base 100, making it easier to transport.

[0114] For example, four casters can be provided, which can be omnidirectional wheels, thus facilitating the movement of the base body 10.

[0115] According to some optional embodiments of the present invention, refer to Figure 1 , Figure 2 and Figure 7 The reinforcing protrusion 13 is fitted with a mounting nut 131, and the base 100 also includes a mounting component (not shown in the figure). One end of the mounting component is threadedly connected to the mounting nut 131, and the roller is rotatably mounted on the other end of the mounting component. Thus, by providing the mounting component, the roller can be easily fixed to the mounting nut 131 through the mounting component, thereby reducing the difficulty of fixing the roller to the mounting nut 131 and improving installation efficiency.

[0116] For example, the upper end of the mounting component is screwed to the mounting nut 131, and the lower end of the mounting component is connected to a roller, which can rotate relative to the mounting component.

[0117] According to some embodiments of this utility model, refer to Figure 1 , Figure 2 and Figure 7The base 100 for the energy storage system also includes multiple rollers, that is, the base 100 includes two, three, four or more rollers, which are located at the bottom of the base body 10. Thus, the rollers can be located at appropriate positions on the base body 10, for example, the rollers can be located on the lower edge of the second plate segment 122 of the base body 10, thereby facilitating the handling of the base body 10.

[0118] According to the energy storage system 1000 of the second aspect embodiment of the present invention, referring to... Figure 1 , Figure 2 , Figure 9 and Figure 10 The system includes a base 100 and a battery pack 200 for an energy storage system according to the first aspect of this embodiment. The battery pack 200 is supported on the support surface of the base 100, and the bottom of the battery pack 200 is provided with a downwardly extending protruding edge 210. The protruding edge 210 extends circumferentially along the battery pack 200 and fits into the clearance groove 111.

[0119] According to an embodiment of the present invention, the energy storage system 1000, by providing the base 100 for the energy storage system described in the first aspect embodiment, and by providing a recessed relief groove 111 on the base body 10 that is recessed downward relative to the supporting surface, with the protruding edge 210 cooperating with the relief groove 111, can prevent the battery pack 200 from moving relative to the base body 10, thereby ensuring the reliability of the connection between the battery pack 200 and the base body 10. At the same time, it can prevent the stacked battery packs 200 from tipping over, thereby avoiding damage from falling, and thus ensuring the safety of the energy storage system 1000.

[0120] According to some embodiments of this utility model, refer to Figure 1 , Figure 2 and Figure 7 The top plate 11 is provided with a mounting port 112, and a connector is installed at the mounting port 112. The base 100 also includes a baffle 20, one end of which (e.g. Figure 2 The lower end of the baffle 20 shown is connected to the top plate 11, and the other end of the baffle 20 (as shown) is connected to the top plate 11. Figure 2 The upper end of the baffle 20 shown extends upward, and the baffle 20 extends in a ring shape along the circumference of the mounting port 112. The connector is located on the inner side of the baffle 20. The bottom of the battery pack 200 is provided with a plug groove (not shown in the figure) that matches the outer contour shape of the baffle 20. The baffle 20 fits into the plug groove.

[0121] In this way, the baffle 20 can protect the connector. When the battery pack 200 is supported on the support surface, it can prevent the battery pack 200 from crushing the connector. At the same time, the baffle 20 extends in a reasonable direction. The baffle 20 can guide the insertion slot of the battery pack 200 to insert and connect with the baffle 20, thereby realizing the blind insertion connection between the battery pack 200 and the base body 10, which can improve the assembly efficiency.

[0122] It should be explained that the battery pack 200 has positive and negative plugs in the plug slot. When the battery pack 200 is engaged with the base body 10, the baffle 20 is inserted into the plug slot. At the same time, the positive and negative plugs are electrically connected through the connector. This can both place the battery pack 200 on the base body 10 and enable blind plugging connection between the battery pack 200 and the connector.

[0123] For example, the bottom of the battery pack 200 is provided with a plug slot corresponding to the position of the baffle 20, and the positive and negative plugs are located in the plug slot. When the baffle 20 is inserted into the plug slot, the connector and the positive and negative plugs are electrically connected.

[0124] According to some embodiments of this utility model, refer to Figure 1 , Figure 3 , Figure 6 , Figure 9 and Figure 10 The lower edge of the protruding edge 210 abuts against the bottom wall of the clearance groove 111. Thus, the bottom wall of the clearance groove 111 supports the protruding edge 210, allowing it to share the pressure exerted by the battery pack 200 on the base 100, thereby increasing the pressure-bearing capacity of the base 100. Simultaneously, by observing whether the lower edge of the protruding edge 210 abuts against the bottom wall of the clearance groove 111, it can be determined whether the fit between the battery pack 200 and the base 100 is adequate, thus facilitating the inspection of the secure fixing of the battery pack 200 and the base 100. For example, as... Figure 1 , Figure 3 and Figure 6 As shown, the lower edge of the protruding edge 210 abuts against the bottom wall of the relief groove 111.

[0125] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0126] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0127] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0128] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0129] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A base (100) for an energy storage system, characterized in that, The energy storage system includes a battery pack (200), the bottom of which has a downwardly extending protruding edge (210) that extends circumferentially along the battery pack (200). The base (100) includes a base body (10), the base body (10) including: a top plate (11), the upper surface of the top plate (11) being formed as a support surface for supporting the battery pack (200), the base body (10) being formed with a recessed relief groove (111) that is recessed downward relative to the support surface, the relief groove (111) extending circumferentially along the base (100), the relief groove (111) being configured to adapt to the shape of the protruding edge (210) for accommodating the protruding edge (210).

2. The base (100) for an energy storage system according to claim 1, characterized in that, The clearance groove (111) extends in a ring shape along the circumference of the base (100), or the minimum width of the clearance groove (111) is 1mm-3mm in the direction from the center of the top plate (11) toward the periphery, or the height of the clearance groove (111) in the vertical direction is 15mm-25mm; or the maximum height of the base body (10) in the vertical direction is 50mm-100mm.

3. The base (100) for an energy storage system according to claim 1, characterized in that, The base body (10) also includes: Side plate (12), which is connected to the top plate (11) and extends downward, the side plate (12) extends circumferentially along the top plate (11) in an annular shape, and the side plate (12) defines the clearance groove (111) arranged on the outer periphery of the top plate (11).

4. The base (100) for an energy storage system according to claim 3, characterized in that The side plate (12) includes: The first plate segment (121) is an annular shape extending in the vertical direction, and its upper end is connected to the top plate (11). The second plate segment (122) is an annular shape extending in the vertical direction and is arranged below the first plate segment (121). In the horizontal projection plane, the first plate segment (121) is located inside the second plate segment (122). A connecting ring (123) is horizontally arranged and connected between the first plate segment (121) and the second plate segment (122); The upper surface of the connecting ring (123) cooperates with the outer surface of the first plate segment (121) to form the clearance groove (111).

5. The base (100) for an energy storage system according to claim 4, characterized in that, The first plate segment (121) is a rectangular ring, and the corners of the first plate segment (121) are chamfered.

6. The base (100) for an energy storage system according to claim 3, characterized in that, The side plate (12) is provided with a fastener (1211), and the side plate (12) is adapted to be fixedly connected to the protruding edge (210) by the fastener (1211).

7. The base (100) for an energy storage system according to claim 6, characterized in that The fastener (1211) includes: A fixing nut is provided on the side plate (12); Fasteners adapted to be threaded through the convex edge (210) and connected to the retaining nut.

8. The base (100) for an energy storage system according to claim 6, characterized in that The number of the fasteners (1211) is multiple, and the multiple fasteners (1211) are arranged at circumferential intervals along the side plate (12).

9. The base (100) for an energy storage system of claim 3, characterized in that, The side plate (12) has a through hole (1221) extending through the side plate (12).

10. The base (100) for an energy storage system according to claim 9, characterized in that, The through hole (1221) is formed by an upward indentation from the lower edge of the side plate (12); or, The through hole (1221) extends in a long strip shape along the circumference of the side plate (12); or, The number of through holes (1221) is multiple, and the multiple through holes (1221) are arranged at intervals along the circumference of the side plate (12).

11. The base (100) for an energy storage system of claim 1, characterized in that, The top plate (11) is provided with a mounting port (112), which is configured for mounting a connector that is plugged into the battery pack (200).

12. The base (100) for an energy storage system according to claim 11, characterized in that include: A baffle (20) is provided, one end of which is connected to the top plate (11), and the other end of which extends upward. The baffle (20) extends in a ring shape along the circumference of the mounting opening (112), and the inner side of the baffle (20) defines a receiving groove (21) suitable for accommodating the connector.

13. The base (100) for an energy storage system of claim 11, wherein, include: A waterproof cover (30) is provided on the lower side of the top plate (11). The waterproof cover (30) is sealed to the top plate (11) and covers the mounting port (112) inside.

14. The base (100) for an energy storage system according to claim 13, characterized in that include: A sealing element is disposed between the waterproof cover (30) and the top plate (11) and extends in a ring shape along the circumference of the waterproof cover (30).

15. The base (100) for an energy storage system of claim 14, characterized in that, The sealing element is a sealing ring, which abuts against the top plate (11) and the waterproof cover (30); or, The sealing element is a sealant, and the waterproof cover (30) and the top plate (11) are bonded together by the sealant.

16. The base (100) for an energy storage system of claim 1, wherein, The base body (10) is provided with a reinforcing structure.

17. The base (100) for an energy storage system of claim 16, characterized in that, The reinforcing structure is a reinforcing protrusion (13), which is arranged on the lower side of the top plate (11), wherein the reinforcing protrusion (13) is formed by a downward recess of a portion of the top plate (11); or, The lower surface of the reinforcing protrusion (13) is coplanar with the lower end surface of the base body (10); or, the top plate (11) is a rectangular plate, and the reinforcing protrusion (13) extends along the length and / or width direction of the top plate (11); or, The number of the reinforcing protrusions (13) is multiple, and the multiple reinforcing protrusions (13) are arranged at intervals along the length direction and / or width direction of the top plate (11).

18. The base (100) for an energy storage system of claim 17, characterized in that, The base (100) further includes a plurality of rollers, which are mounted on the reinforcing protrusion (13), and the base body (10) is supported on the plurality of rollers.

19. The base (100) for an energy storage system of claim 18, characterized in that, The reinforcing protrusion (13) is fitted with a mounting nut (131), and the base (100) also includes a mounting member. One end of the mounting member is threadedly connected to the mounting nut (131), and the roller is rotatably disposed at the other end of the mounting member.

20. An energy storage system (1000) characterized by, include: A base (100) for an energy storage system according to any one of claims 1-19; A battery pack (200) is supported on the support surface of the base (100). The bottom of the battery pack (200) is provided with a downwardly extending protruding edge (210) that extends circumferentially along the battery pack (200) and fits into the clearance groove (111).

21. The energy storage system (1000) of claim 20, wherein, The top plate (11) is provided with an installation port (112), and a connector is installed at the installation port (112). The base (100) further includes a baffle (20), one end of which is connected to the top plate (11), and the other end of which extends upward. The baffle (20) extends in a ring shape along the circumference of the installation port (112). The connector is located on the inner side of the baffle (20). The bottom of the battery pack (200) is provided with a plug-in groove that matches the outer contour shape of the baffle (20), and the baffle (20) fits into the plug-in groove.

22. The energy storage system (1000) of claim 20, wherein, The lower edge of the protruding edge (210) abuts against the bottom wall of the relief groove (111).

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