Storage box and energy storage system

Abstract

The utility model provides a storage box and an energy storage system. The storage box comprises a box body (1) and a cover body (2), an opening of the box body (1) is covered with the cover body (2), a protruding part (3) is arranged on the side wall of the box body (1), a connecting structure (4) is arranged on the back side of the protruding part (3), and the cover body (2) is fixedly connected with the box body (1) through the connecting structure (4). According to the storage box, materials can be saved, the space utilization rate can be improved, the occupied space can be reduced, and the transportation cost can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of article storage, and in particular to a storage box and an energy storage system. Background Art

[0002] Die casting is a process used to manufacture products or parts, typically metal parts with complex geometries and high strength requirements. This process involves forcing molten metal under high pressure into a precisely designed mold to form the desired shape. Die casting is widely used in the automotive, aerospace, electronics, and other industries to produce parts with high strength and a superior surface finish.

[0003] The die-casting box has the following advantages:

[0004] 1. The die-cast box is made of metal material with excellent strength and rigidity, and can withstand large external forces and pressures.

[0005] 2. The die-casting box is produced by mold forming, which can ensure the dimensional accuracy and surface finish of the box.

[0006] 3. The production process of the die-cast box is simple and fast, and it can be formed in one step, and can be produced in large quantities, thereby improving production efficiency.

[0007] 4. The die-cast box can be precisely designed and processed as needed, with various shapes and a wide range of applications.

[0008] 5. During the production process of the die-cast box, the use of mold molding can minimize material waste and save costs.

[0009] When the die-cast box is formed, an external flange is required. The waterproof strip is placed between the box and the cover, and the bolt structure is located outside the strip. This structure wastes a lot of external space, resulting in a large footprint and high transportation costs. Utility Model Content

[0010] The main purpose of the utility model is to provide a storage box and an energy storage system, which can save materials, improve space utilization, reduce space occupancy, and reduce transportation costs.

[0011] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a storage box is provided, including a box body and a cover body, the cover body is arranged at the opening of the box body, the side wall of the box body is provided with a protrusion, the back side of the protrusion is provided with a connecting structure, and the cover body is fixedly connected to the box body through the connecting structure.

[0012] Furthermore, a groove is provided on the back side of the protruding portion, and the connecting structure includes a connecting plate provided in the groove, and the cover body is fixedly connected to the box body via the connecting plate.

[0013] Furthermore, at least part of the connecting plate is provided with a first connecting hole, the cover body is provided with a second connecting hole, and connecting pieces are provided in the first connecting hole and the second connecting hole, and the connecting pieces connect the connecting plate and the cover body.

[0014] Furthermore, the protrusion protrudes toward the inner side of the box body, the connecting plate is located outside the box body, the first connecting hole is a threaded hole, the second connecting hole is a blind hole, and the connecting member includes a bolt, which passes through the first connecting hole and is threadedly connected to the second connecting hole; or,

[0015] The first connecting hole is a through hole, the second connecting hole is a through hole, the connecting member includes a bolt, and one end of the bolt extending out of the first connecting hole and the second connecting hole is fastened and fixed by a nut; or,

[0016] The first connecting hole is a threaded hole, the second connecting hole is a through hole, and the connecting member includes a bolt, which passes through the second connecting hole and is threadedly connected to the first connecting hole;

[0017] or,

[0018] The protrusion protrudes toward the outside of the box body, the connecting plate is located inside the box body, the first connecting hole is a threaded hole, the second connecting hole is a through hole, and the connecting member includes a bolt, which passes through the second connecting hole and is threadedly connected to the first connecting hole;

[0019] or,

[0020] The outer edge of the connecting plate is in an outwardly convex arc shape.

[0021] Furthermore, a first clamping portion is provided on the connecting plate, and a second clamping portion is provided on the cover body, and the first clamping portion and the second clamping portion are clamped and fixed; or, a plurality of connecting plates are provided at intervals in at least part of the groove along the extension direction of the groove; or, at least part of the connecting plates are designed to be weak at the connection with the box body.

[0022] Furthermore, the connecting structure extends from the bottom of the protrusion toward the cover body, and the top of the connecting structure is fixedly connected to the cover body; or, the protrusion protrudes toward the inner side of the box body, the connecting structure is located on the outer side of the box body, and multiple protrusions are arranged at intervals along the circumference of the box body.

[0023] Furthermore, when the protrusion protrudes outward, the sum of the widths of the protrusion along the circumferential direction is greater than 1 / 2 of the circumference of the box at the opening; when the protrusion protrudes inward, the sum of the widths of the protrusion along the circumferential direction is less than 1 / 2 of the circumference of the box at the opening.

[0024] Furthermore, there is a preset interval between the connection structure and the upper edge of the box body, and an embedding groove is provided on the cover body corresponding to the upper edge of the box body, and the upper edge of the box body is embedded in the embedding groove.

[0025] Furthermore, a sealing layer is provided at the bottom of the embedding groove, and the upper edge of the box body is sealed with the sealing layer.

[0026] Furthermore, the cover body includes a top cover, an inner side wall and an outer side wall, the inner side wall and the outer side wall are connected to the top cover, and the outer side wall is located on the outer peripheral side of the inner side wall and forms an embedding groove with the inner side wall.

[0027] Furthermore, when the protruding portion protrudes toward the inner side of the box body, a protruding block protruding toward the inner side wall is provided on the inner side of the outer side wall, and the protruding block is provided corresponding to the connecting structure and is connected to the connecting structure.

[0028] Furthermore, when the connecting structure includes a connecting plate arranged in the groove, there is a preset distance between the protrusion and the lower edge of the outer wall, and the preset distance is greater than or equal to the thickness of the connecting plate. When the cover body is covered on the box body, the connecting plate is located between the protrusion and the lower edge of the outer wall, and the side of the outer wall covers the connecting plate.

[0029] Furthermore, projection is performed on the top surface of the cover, and the projection of the box is located within the projection range of the cover.

[0030] According to another aspect of the present invention, an energy storage system is provided, comprising a storage box, which is the storage box described above.

[0031] According to the technical solution of the present invention, a storage box includes a box body and a cover body, the cover body is arranged at the opening of the box body, the side wall of the box body is provided with a protrusion, the back side of the protrusion is provided with a connecting structure, and the cover body is fixedly connected to the box body through the connecting structure. The box body of the storage box has a protrusion formed on the side wall, and a connecting structure connected to the cover body is formed on the back side of the protrusion. The structure of the protrusion can be used to form an installation space on the side wall of the box body itself, which facilitates the connection between the box body and the cover body. The box body structure is more fully utilized, and there is no need to add additional structures for connecting to the cover body on the inside or outside of the box body. The overall structure is more compact, and the overall size is smaller at the same capacity, which improves space utilization, occupies less area, requires less installation space, and has lower transportation costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0033] Figure 1 A schematic diagram of the three-dimensional structure of a storage box according to an embodiment of the present invention is shown;

[0034] Figure 2 A schematic diagram of the top view of a storage box according to an embodiment of the present invention is shown;

[0035] Figure 3A schematic side view of a storage box according to an embodiment of the present invention is shown;

[0036] Figure 4 A bottom view schematic diagram of a storage box according to an embodiment of the present invention is shown;

[0037] Figure 5 A schematic diagram of the box structure of a storage box according to an embodiment of the present invention is shown;

[0038] Figure 6 A schematic diagram showing the cover structure of a storage box according to an embodiment of the present invention is shown;

[0039] Figure 7 A schematic side structural diagram of a storage box according to an embodiment of the present invention is shown;

[0040] Figure 8 A schematic diagram showing the three-dimensional structure of a storage box according to an embodiment of the present invention is shown;

[0041] Figure 9 A schematic diagram showing the three-dimensional structure of a cover of a storage box according to an embodiment of the present invention is shown;

[0042] Figure 10 A schematic structural diagram of a storage box cover according to an embodiment of the present invention is shown;

[0043] Figure 11 A schematic diagram showing the volume structure of a storage box according to an embodiment of the present invention; and

[0044] Figure 12 The figure shows a volume structure diagram of a storage box according to an embodiment of the present utility model.

[0045] The above drawings include the following reference numerals:

[0046] 1. Box body; 2. Cover body; 3. Protrusion; 4. Connection structure; 5. Groove; 6. First connection hole; 7. Second connection hole; 8. Embedded groove; 9. Sealing layer; 10. Top cover; 11. Outer wall; 12. Inner wall; 13. Bump. DETAILED DESCRIPTION

[0047] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0048] See also Figures 1 to 12As shown, the utility model provides a storage box, including a box body 1 and a cover body 2, the cover body 2 is arranged to cover the opening of the box body 1, and the side wall of the box body 1 is provided with a protrusion 3. The provision of the protrusion 3 not only increases the structural strength of the box body, but also cleverly forms a connecting structure 4 on the back side of the protrusion 3, through which the cover body 2 can be fixedly connected to the box body 1.

[0049] The storage box body forms a protrusion 3 on the side wall and forms a connection structure connected to the cover body 2 on the back side of the protrusion 3. The structure of the protrusion can be used to form an installation space on the side wall of the box body itself, which is convenient for realizing the connection between the box body and the cover body. The box body structure is more fully utilized, and there is no need to add additional structures for connecting with the cover body 2 on the inside or outside of the box body 1. The overall structure is more compact, and the overall size is smaller at the same capacity, which improves space utilization, occupies less area, requires less installation space, and has lower transportation costs.

[0050] The position and design of the connecting structure 4 ensure a secure connection between the cover and the box body without affecting the overall appearance and usable space of the storage box. This design allows the storage box to maintain its aesthetics while achieving efficient space utilization, making it particularly suitable for use in situations where space is limited.

[0051] There are two cases for the protruding direction of the protruding portion 3. One case is protruding toward the outside of the box body 1. Figure 11 As shown, the other is protruding toward the inner side of the box body 1, as shown Figure 12 As shown, generally speaking, the width occupied by the protrusions 3 in the circumferential direction of the box body 1 is smaller than the spacing between adjacent protrusions 3. Therefore, the space between adjacent protrusions 3 can still be used for placing objects.

[0052] For the case where the protrusion 3 protrudes to the outside of the box body 1, under the same floor area, the usable area of ​​the box body 1 is b*c, and the floor area is 2a+b*c. Therefore, the space occupied by the protrusion 3 of the box body 1 cannot be utilized, and the storage volume is reduced when the height is consistent.

[0053] For the case where the protrusion 3 protrudes toward the inner side of the box body 1, under the same floor area, the usable area of ​​the box body 1 is B*C, and the floor area is B*C. Therefore, when the protrusion 3 of the box body 1 protrudes toward the inner side of the box body 1, the usable area is basically equal to the floor area, and the structure of the box body 1 can be fully utilized.

[0054] Under the condition of the same floor space, the protrusion 3 protrudes from the inner side of the box body 1 to a height A, the protrusion 3 protrudes from the outer side of the box body 1 to a height a, the width of the box body 1 protruding from the inner side of the box body 1 to B, and the width of the box body 1 protruding from the outer side of the box body 1 to b, B = 2a + b. That is, the usable area of ​​the box body 1 is B*C = 2a + b*c > b*c. The usable area when the protrusion 3 protrudes from the inner side of the box body 1 is greater than the usable area when the protrusion 3 protrudes from the outer side of the box body 1. Therefore, under the condition of the same floor space, the usable area of ​​the box body is larger when the protrusion 3 protrudes from the inner side of the box body 1. Under the condition of the same capacity, the floor space of the box body is smaller when the protrusion 3 protrudes from the inner side of the box body 1, and the structure is more compact.

[0055] In the above two cases, since the connecting structure 4 utilizes the back space of the protrusion 3, it does not occupy other space of the box body 1. Compared with the existing technology, both can reduce the volume occupied by the storage box, increase the space utilization of the storage box, and reduce the floor space and transportation costs.

[0056] In some embodiments, the protrusion 3 may be provided on the side where the short side of the box body 1 is located, or the protrusion 3 may be provided on the four side panels of the box body 1 at the same time, which can also achieve the same effect.

[0057] In one embodiment, the box body 1 and the cover body 2 can be connected by riveting, anchor connection, magnetic attraction, screw connection or clamping.

[0058] In one embodiment, there are multiple protrusions 3, and the multiple protrusions 3 are arranged at equal or unequal intervals along the circumference of the box body 1, which can form connections at multiple positions, thereby improving the connection strength between the box body 1 and the cover body 2 and ensuring the sealing and fitting effect between the box body 1 and the cover body 2.

[0059] Among the multiple protrusions 3, the connection structure 4 can be provided on the back side of each protrusion 3, or the connection structure 4 can be provided on the back side of some of the protrusions 3, and the selection can be made according to needs.

[0060] Figures 2 to 7The connection details of the storage box are further illustrated in detail. As can be seen, a groove 5 is provided on the back side of the protrusion 3. The connection structure 4 includes a connecting plate disposed within the groove 5. The cover 2 is fixedly connected to the box 1 via the connecting plate. At least part of the connecting plate is provided with a first connection hole 6. The cover 2 is provided with a second connection hole 7. Connectors are disposed within the first and second connection holes 6 and 7, and are used to securely connect the connecting plate and the cover 2 together. The connecting plate, as part of the connection structure 4, is fixedly connected to the cover 2 via connectors (such as bolts) within the first and second connection holes 6 and 7. This design not only simplifies the connection process between the cover and the box, but also ensures a secure connection. Notably, by adjusting the type of the first and second connection holes 6 and 7 (such as through holes or threaded holes) and the type of connector, different connection requirements can be flexibly adapted to achieve a secure connection between the cover and the box. This flexibility is extremely important in practical applications. For example, in energy storage systems that require frequent disassembly and assembly, this design can significantly reduce the time and cost of maintenance and upgrades, improving system operability and maintenance efficiency.

[0061] In one embodiment, there is an angle between the axial direction of at least one first connecting hole 6 on the connecting plate and the vertical direction.

[0062] In one embodiment, the opening area of ​​at least part of the first connecting hole 6 on the connecting plate increases gradually from top to bottom, thereby forming a guide on the installation side to facilitate installation.

[0063] In one embodiment, the connection structure 4 may also be a connection block, a connection rod, or other structures that can be provided with the first connection hole 6 and connected to the cover body 2. The connection structure 4 may also be an irregular structure.

[0064] In one embodiment, first connection holes 6 are provided on all the connection plates.

[0065] In one embodiment, first connection holes 6 are provided on part of the connection plates.

[0066] In one embodiment, the protrusion 3 protrudes toward the inner side of the box body 1, the connecting plate is located on the outside of the box body 1, the first connecting hole 6 is a threaded hole, the second connecting hole 7 is a blind hole and a threaded hole, and the connecting part includes a bolt, which passes through the first connecting hole 6 and is threadedly connected to the second connecting hole 7.

[0067] Because the protrusion 3 protrudes toward the inside of the box body 1, the connecting plate is located on the outside of the box body 1. In this case, the connection between the connecting plate and the cover body 2 can be a variety of connection forms, such as bolt connection or clamping. In this embodiment, the first connecting hole 6 is a threaded hole, and the second connecting hole 7 is a blind hole. When connecting, the bolt can pass through the threaded hole of the first connecting hole 6 below the connecting plate, and after being threadedly connected to the connecting plate, enter the second connecting hole 7 and threadedly connect with the second connecting hole 7 to achieve a fixed connection between the box body 1 and the cover body 2. Because the second connecting hole 7 is a blind hole, the axial position of the bolt can be limited. At the same time, the characteristic of the second connecting hole 7 being a blind hole can be used to allow the cover body 2 to shield the connection position, preventing rainwater and the like from entering the threaded connection position, thereby effectively protecting the threaded connection structure.

[0068] In one embodiment, the first connecting hole 6 is a light hole and a through hole, the second connecting hole 7 is a light hole and a through hole, and the connecting member includes a bolt, and one end of the bolt extending out of the first connecting hole 6 and the second connecting hole 7 is fixed by being locked with a nut.

[0069] In this embodiment, when making the connection, the bolt can be installed from the bottom up, that is, after passing through the first connection hole 6, it passes through the second connection hole 7, and then the nut is threadedly connected to the end of the bolt that passes through the second connection hole 7 to achieve a fixed connection between the box body 1 and the cover body 2. The bolt can also be installed from the top down, that is, after passing through the second connection hole 7, it passes through the first connection hole 6, and then the nut is threadedly connected to the end of the bolt that passes through the first connection hole 6 to achieve a fixed connection between the box body 1 and the cover body 2. Because the first connection hole 6 and the second connection hole 7 are both plain holes, there is no need to tighten the bolt during the bolt insertion process, making installation simpler and more convenient.

[0070] In one embodiment, the first connection hole 6 is a threaded hole and a through hole, the second connection hole 7 is a smooth hole and a through hole, and the connecting member includes a bolt, which passes through the second connection hole 7 and is threadedly connected to the first connection hole 6 .

[0071] In this embodiment, the bolts can be installed from top to bottom, and after passing through the second connection hole 7 , they are fixedly connected with the threads of the first connection hole 6 , thereby achieving a fixed connection between the box body 1 and the cover body 2 .

[0072] In one embodiment, the first connection hole 6 is a smooth hole and a through hole, the second connection hole 7 is a threaded hole and a through hole, and the connecting member includes a bolt, which passes through the first connection hole 6 and is threadedly connected to the second connection hole 7 .

[0073] In this embodiment, the bolts are installed from bottom to top, first passing through the first connection hole 6 and then threadedly connected to the second connection hole 7 to achieve a fixed connection between the box body 1 and the cover body 2.

[0074] In one embodiment, the protrusion 3 protrudes toward the outside of the box body 1, the connecting plate is located on the inside of the box body 1, the first connecting hole 6 is a threaded hole, the second connecting hole 7 is a through hole, and the connecting part includes a bolt, which passes through the second connecting hole 7 and is threadedly connected to the first connecting hole 6.

[0075] Since the protrusion 3 protrudes toward the outside of the box body 1, the connecting plate is located on the inside of the box body 1. In this case, if the box body 1 and the cover body 2 are connected by snapping, since the snapping structure is located inside the box body 1 after the box body 1 and the cover body 2 are closed, it is inconvenient to operate the snapping structure, which is more inconvenient when opening the box body 1 and the cover body 2. Therefore, in this embodiment, a second connecting hole 7 is provided on the cover body 2, and a first connecting hole 6 is provided on the box body 1. When fixing the box body 1 and the cover body 2, a bolt can be inserted from the second connecting hole 7 on the cover body 2, so that the bolt can be threadedly connected to the first connecting hole 6 after passing through the second connecting hole 7, thereby realizing the connection between the box body 1 and the cover body 2. Since the second connecting hole 7 is a smooth hole and the first connecting hole 6 is a threaded hole, there is no need to set a bolt inside the box body 1, which reduces the difficulty of operation when connecting the box body 1 and the cover body 2.

[0076] In order to prevent rainwater from flowing into the box body 1 through the second connecting hole 7, a boss can be provided on the cover body 2. The boss protrudes from the upper surface of the cover body 2, and the second connecting hole 7 is opened on the boss. The boss can increase the opening height of the second connecting hole 7. Due to the obstruction of the nut, rainwater cannot directly enter the box body 1 through the second connecting hole 7, nor can it enter the second connecting hole 7 from the surface of the cover body 2. Therefore, it can effectively prevent rainwater from entering the box body 1 and maintain the dryness of the box body 1.

[0077] In one embodiment, the outer edge of the connecting plate is in an outwardly convex arc shape.

[0078] In this embodiment, since the first connecting hole 6 is arranged on the connecting plate, and the structure of the connecting plate is restricted by the protrusion 3 and has a limited width, it is easy to cause the hole wall thickness at the edge of the first connecting hole 6 to be too small, and the structural strength is insufficient, making the structure of the connecting plate easy to be damaged. By setting the outer edge of the connecting plate to an outward convex arc shape, the total width of the structure of the connecting plate where the first connecting hole 6 is opened can be increased, and the thickness of the hole wall of the connecting hole can be increased, thereby increasing the structural strength of the hole wall of the connecting hole, and improving the structural strength and stability of the connecting plate.

[0079] In one embodiment, a first clamping portion is provided on the connecting plate, and a second clamping portion is provided on the cover 2. The first clamping portion and the second clamping portion are clamped and fixed, and the connection between the cover 2 and the box 1 is achieved through the clamping portion. In this embodiment, the first clamping portion is provided on the connecting plate, and the second clamping portion is correspondingly provided on the cover 2. Through the clamping and fixing of the first clamping portion and the second clamping portion, the cover and the box are firmly connected.

[0080] In one embodiment, multiple connecting plates can be spaced apart within the groove 5. This not only increases connection reliability but also allows for more even force distribution around the lid, improving the box's seal and structural stability. Furthermore, the multiple connecting plates can form a heat dissipation fin structure, giving the box 1 a larger heat dissipation area and higher heat dissipation efficiency. This evenly distributed connection method is particularly suitable for applications that must withstand significant external pressure or impact, such as outdoor energy storage systems. It effectively prevents box deformation or seal failure caused by uneven local force, ensuring safe and stable operation of the system in harsh environments.

[0081] In one embodiment, at least some of the connecting plates are designed to be weak at their connection to the box body 1. In this embodiment, this is achieved by reducing the thickness of some of the connecting plates at their connection locations with the box body 1, or by partially shearing them at their connection locations with the box body 1. Other methods of designing a weak connection can also be used, such as punching holes at the connection locations. This allows the storage box to be explosion-proof. When the pressure inside the storage box becomes excessive, the connection between the box body 1 and the lid 2 will first break at the location where the weak connection is designed, further disconnecting the box body 1 and the lid 2, releasing the internal pressure of the box body 1 and preventing further damage.

[0082] Figure 8 Another embodiment of a storage box is shown, in which a connecting structure 4 extends from the bottom of the protrusion 3 toward the cover 2, and the top of the connecting structure 4 is fixedly connected to the cover 2. This connecting structure 4 has greater structural strength, making the connection between the box 1 and the cover 2 more stable.

[0083] In some embodiments, the protrusions 3 project toward the inside of the housing 1, while the connection structure 4 is located outside the housing 1. This arrangement allows for multiple protrusions 3 to be spaced apart along the circumference of the housing 1, further strengthening the housing structure while also providing a stable fulcrum for the cover, ensuring a tight and durable connection. In practical applications, such as in energy storage systems for wind or solar power plants, this design can significantly reduce maintenance workload and improve system efficiency. It also facilitates quick opening of the cover in emergency situations for equipment inspection or repair.

[0084] In one embodiment, in conjunction with Figure 4 As shown, when the protrusion 3 protrudes outward, the sum of the widths of the protrusion 3 along the circumferential direction is greater than 1 / 2 of the circumference of the box body 1 at the opening; when the protrusion 3 protrudes inward, the sum of the widths of the protrusion 3 along the circumferential direction is less than 1 / 2 of the circumference of the box body 1 at the opening.

[0085] In this embodiment, when the protrusion 3 protrudes outward, the sum of the widths of the protrusion 3 along the circumferential direction is greater than 1 / 2 of the circumference of the box body 1 at the opening, so that the recessed structure formed by the protrusion 3 on the inner side of the box body 1 has a larger space. The larger the sum of the widths of the protrusion 3 along the circumferential direction, the larger the capacity of the box body 1, so that the box body structure can be more fully utilized to form a larger accommodating space, thereby improving space utilization efficiency.

[0086] When the protrusion 3 protrudes inward, the sum of the circumferential widths of the protrusion 3 is less than half the circumference of the box body 1 at the opening. Since the protrusion 3 occupies the internal space of the box body 1 when it protrudes inward, the smaller the sum of the circumferential widths of the protrusion 3, the smaller the internal space of the box body 1 occupied, the larger the usable space inside the box body 1, and the higher the space utilization efficiency.

[0087] Figures 5 to 9 The figure further illustrates the sealing and connection details of the storage box. As can be seen, a predetermined gap is set between the connecting structure 4 and the upper edge of the box body 1. The lid 2 is designed with a recess 8 corresponding to the upper edge of the box body 1. The upper edge of the box body 1 fits into the recess 8, forming a tight fit. A sealing layer 9 at the bottom of the recess 8 further enhances the sealing performance of the storage box, protecting the items inside from external environmental influences.

[0088] In one embodiment, the sealing layer 9 is a rubber strip. The rubber strip is located inside the cover 2 and does not occupy the internal space of the box 1. The rubber strip is used to fasten the upper edge of the box 1 and the inner groove 8 of the cover 2, thereby minimizing space waste.

[0089] In one embodiment, the cross-sectional shape of the embedding groove 8 is V-shaped or inverted trapezoidal, which can facilitate the installation of the rubber strip and the centering of the rubber strip during installation to avoid displacement of the rubber strip during installation.

[0090] Figure 9 and Figure 10 The structure of the cover 2 is shown in a concentrated manner, including a top cover 10, an inner sidewall 12, and an outer sidewall 11. The inner sidewall 12 and the outer sidewall 11 are connected to the top cover 10, and the outer sidewall 11 is located on the outer periphery of the inner sidewall 12, and a groove 8 is formed between the outer sidewall 11 and the inner sidewall 12. From the figure, it can be seen how the outer sidewall 11 and the inner sidewall 12 are connected to the top cover 10, wherein the outer sidewall 11 is located on the outer periphery of the inner sidewall 12, and a groove 8 is formed between the outer sidewall 11 and the inner sidewall 12. This design not only increases the structural strength of the cover, but also provides additional space for the setting of the groove 8. In practice, this sealing design can effectively resist the intrusion of water vapor, dust, and organisms, protect the operating environment of internal batteries and other energy storage devices, extend the service life of the equipment, and reduce maintenance costs.

[0091] When protrusion 3 projects toward the inside of box body 1, a bump 13 is provided on the inside of outer wall 11, projecting toward inner wall 12. Bump 13 corresponds to and connects with connection structure 4, forming a stable connection point. The provision of bump 13 facilitates the arrangement of second connection hole 7 while leaving sufficient space for the edge of box body 1 to mate with lid body 2, thereby enhancing the airtight fit between box body 1 and lid body 2.

[0092] In one embodiment, when the connection structure 4 includes a connection plate disposed within the recess 5, a predetermined distance exists between the protrusion 13 and the lower edge of the outer wall 11. The predetermined distance is greater than or equal to the thickness of the connection plate. When the lid 2 is placed on the box body 1, the connection plate is located between the protrusion 13 and the lower edge of the outer wall 11, with the outer wall 11 laterally covering the connection plate. The predetermined distance between the protrusion 13 and the lower edge of the outer wall 11 is greater than or equal to the thickness of the connection plate, ensuring that the connection structure can adapt to connection plates of varying thicknesses, thereby improving the flexibility and applicability of the connection. Because the predetermined distance between the protrusion 13 and the lower edge of the outer wall 11 is greater than or equal to the thickness of the connection plate, the connection plate can be completely contained within the coverage of the outer wall 11, preventing it from being exposed. This effectively protects the connection plate from damage due to collisions and other factors, while also providing a good outer tube structure for the storage box and providing better protection for the connection structure 4 and other components located within the outer wall 11.

[0093] In addition, the flexibility of this design is crucial for coping with the dimensional changes of different energy storage devices. Without changing the box design, the thickness of the connecting plate can be adjusted to accommodate battery packs of different models and sizes, thereby improving the versatility and compatibility of the storage box and reducing the customization cost of the system.

[0094] In one embodiment, when projecting on the top surface of the cover body 2, the projection of the box body 1 is within the projection range of the cover body 2, which means that the cover body 2 can completely cover the opening of the box body 1 when closed, and can block the connecting plate and connecting parts such as bolts on the connecting plate, thereby effectively protecting the bolts, etc., and improving the waterproof and rust-proof effects.

[0095] In one embodiment, the box body 1 and the cover body 2 are die-cast.

[0096] According to an embodiment of the present invention, the energy storage system includes a storage box, which is the storage box mentioned above.

[0097] The energy storage system adopts the above-mentioned storage box, which has a larger internal volume, can accommodate more coolant, has a larger thermal inertia, is not easy to overheat, and has an increased surface area and a higher self-cooling power.

[0098] In summary, the utility model forms an installation space inside or outside the box by utilizing the protrusion of the box to expand the thickness of the box, thereby reducing the occupation of the installation space by the product size. Since the expanded space formed by the protrusion can be used to reserve installation holes and installation space on the box, the waste of resources caused by the installation holes and installation space of the product is greatly reduced.

[0099] The mounting hole is moved downward from the upper edge of the box and matched with the mounting hole of the cover. At the same time, the upper edge of the box is matched with the rubber strip on the inside of the cover to achieve a waterproof effect. The bolts are operated through the reserved space on the outside of the box, and a bolt-free design is realized on the front, which improves the waterproof and rust-proof effects.

[0100] By utilizing the characteristics of the die-casting process, part of the area is reserved at the fixing point of the cover and the box body, so as to achieve a smaller product size and greater competitiveness.

[0101] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0102] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0103] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A storage box, characterized in that: The invention comprises a box body (1) and a cover body (2), wherein the cover body (2) is arranged to cover the opening of the box body (1), a protrusion (3) is arranged on the side wall of the box body (1), a connecting structure (4) is arranged on the back side of the protrusion (3), and the cover body (2) is fixedly connected to the box body (1) via the connecting structure (4).

2. The storage box according to claim 1, characterized in that: A groove (5) is provided on the back side of the protruding portion (3); the connecting structure (4) includes a connecting plate provided in the groove (5); and the cover (2) is fixedly connected to the box body (1) via the connecting plate.

3. The storage box according to claim 2, characterized in that: At least part of the connecting plate is provided with a first connecting hole (6), the cover body (2) is provided with a second connecting hole (7), and connecting pieces are provided in the first connecting hole (6) and the second connecting hole (7), and the connecting pieces connect the connecting plate and the cover body (2).

4. The storage box according to claim 3, characterized in that: The protruding portion (3) protrudes toward the inner side of the box body (1), the connecting plate is located outside the box body (1), the first connecting hole (6) is a threaded hole, the second connecting hole (7) is a blind hole and a threaded hole, the connecting member includes a bolt, the bolt passes through the first connecting hole (6) and is threadedly connected to the second connecting hole (7); or, the first connecting hole (6) is a light hole, the second connecting hole (7) is a light hole, the connecting member includes a bolt, one end of the bolt extending from the first connecting hole (6) and the second connecting hole (7) is fixed by a nut; or, the first connecting hole (6) is a threaded hole, the second connecting hole (7) is a light hole, the connecting member includes a bolt, the bolt passes through the second connecting hole (7) and is threadedly connected to the first connecting hole (6); or, The protruding portion (3) protrudes toward the outside of the box body (1), the connecting plate is located inside the box body (1), the first connecting hole (6) is a threaded hole, the second connecting hole (7) is a smooth hole, and the connecting member includes a bolt, which passes through the second connecting hole (7) and is threadedly connected to the first connecting hole (6); or, The outer edge of the connecting plate is in an outwardly convex arc shape.

5. The storage box according to claim 2, characterized in that: A first clamping portion is provided on the connecting plate, and a second clamping portion is provided on the cover body (2), and the first clamping portion and the second clamping portion are clamped and fixed; or, a plurality of the connecting plates are provided at intervals along the extension direction of the groove in at least part of the groove; or, at least part of the connecting plates are designed to be weak at the connection with the box body (1).

6. The storage box according to claim 1, wherein: The connecting structure (4) extends from the bottom of the protrusion (3) toward the cover body (2), and the top of the connecting structure (4) is fixedly connected to the cover body (2); or, the protrusion (3) protrudes toward the inner side of the box body (1), the connecting structure (4) is located on the outer side of the box body (1), and a plurality of the protrusions (3) are arranged at intervals along the circumference of the box body (1).

7. The storage box according to any one of claims 1 to 6, characterized in that: When the protrusion (3) protrudes outward, the sum of the widths of the protrusion (3) along the circumferential direction is greater than 1 / 2 of the circumference of the box body (1) at the opening; when the protrusion (3) protrudes inward, the sum of the widths of the protrusion (3) along the circumferential direction is less than 1 / 2 of the circumference of the box body (1) at the opening.

8. The storage box according to any one of claims 1 to 6, characterized in that: The connection structure (4) and the upper edge of the box body (1) have a preset interval, and the cover body (2) is provided with an embedding groove (8) corresponding to the upper edge of the box body (1), and the upper edge of the box body (1) is embedded in the embedding groove (8).

9. The storage box according to claim 8, characterized in that: A sealing layer (9) is provided at the bottom of the embedding groove (8), and the upper edge of the box body (1) is sealed with the sealing layer (9).

10. The storage box according to claim 8, characterized in that: The cover body (2) comprises a top cover (10), an inner side wall (12) and an outer side wall (11); the inner side wall (12) and the outer side wall (11) are connected to the top cover (10); the outer side wall (11) is located on the outer peripheral side of the inner side wall (12) and forms the embedding groove (8) between the outer side wall (11) and the inner side wall (12).

11. The storage box according to claim 10, characterized in that: When the protruding portion (3) protrudes toward the inner side of the box body (1), a convex block (13) protruding toward the inner side wall (12) is provided on the inner side of the outer side wall (11), and the convex block (13) is provided corresponding to the connecting structure (4) and is connected to the connecting structure (4).

12. The storage box according to claim 11, characterized in that: When the connecting structure (4) includes a connecting plate arranged in the groove (5), there is a preset distance between the protrusion (13) and the lower edge of the outer side wall (11), and the preset distance is greater than or equal to the thickness of the connecting plate. When the cover (2) is covered on the box body (1), the connecting plate is located between the protrusion (13) and the lower edge of the outer side wall (11), and the outer side wall (11) covers the connecting plate.

13. The storage box according to any one of claims 1 to 6 or 9 to 12, characterized in that: Projection is performed on the top surface of the cover body (2), and the projection of the box body (1) is located within the projection range of the cover body (2).

14. An energy storage system, comprising a storage box, characterized in that: The storage box is the storage box according to any one of claims 1 to 13.

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