Box body for energy storage device and energy storage device

Abstract

The utility model relates to the technical field of energy storage systems, and discloses a box body for an energy storage device and the energy storage device, at least two brackets are arranged in the box body, and the at least two brackets are sequentially arranged at intervals along a first direction; comprising a reinforcing beam, and the reinforcing beam extends in the first direction, sequentially penetrates through the lower portions of the at least two supports and is fixed to the bottom of the box body. At least one mounting hole is formed in the reinforcing beam, and the mounting hole penetrates through the reinforcing beam in the second direction; one mounting hole is formed between every two adjacent brackets and is used for mounting a high-voltage distribution box or a battery pack in a penetrating manner; the first direction is perpendicular to the second direction, the bearing capacity of the whole box body is enhanced, and meanwhile the comprehensive utilization efficiency of the bottom space in the box body is greatly improved.

Description

Technical Field

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

[0002] In the field of energy storage technology, the ever-increasing demand for total power in energy storage devices has led to a corresponding increase in battery pack size, significantly increasing the overall weight of these devices. To ensure these heavy energy storage devices meet maritime transport requirements, the traditional approach is to add reinforcement beams to the bottom of the device housing to enhance its load-bearing capacity.

[0003] In most cases, I-beams are used for reinforcement beams. The bending resistance of I-beams is an important indicator for evaluating their strength. The section moment of inertia I is an important parameter for measuring their bending resistance, which is related to the section size and shape of the I-beam. y Generally speaking, the higher the height h of the I-beam is, the greater its longitudinal moment of inertia is, which means that the I-beam has a stronger ability to resist bending in the longitudinal direction.

[0004] Therefore, in order to improve the longitudinal bending resistance of the reinforcing beam, the height of the reinforcing beam will be increased, and then the load-bearing capacity of the box will be improved through the reinforcing beam. However, this approach will sacrifice part of the bottom space of the box, thereby affecting the energy density of the energy storage device. Utility Model Content

[0005] In view of this, the present invention provides a box body for an energy storage device and an energy storage device, so as to solve the problem of sacrificing the bottom space of the box body when improving the strength of the reinforcing beam.

[0006] In a first aspect, the utility model provides a box for an energy storage device, wherein at least two brackets are provided inside the box, and the at least two brackets are arranged in sequence along a first direction; the box includes a reinforcing beam, which extends along the first direction and passes through the bottom of the at least two brackets in sequence and is fixed to the bottom of the box; at least one mounting hole is provided on the reinforcing beam, and the mounting hole is provided through the reinforcing beam along a second direction; a mounting hole is provided between each two adjacent brackets, and the mounting hole is used for the installation of a high-voltage distribution box or a battery pack; the first direction and the second direction are perpendicular to each other.

[0007] Beneficial effects: Since the reinforcing beam passes through at least two brackets in sequence along the first direction, the supporting capacity of the box for the bracket is improved, and the load-bearing capacity of the entire box is significantly enhanced; and by arranging mounting holes on the reinforcing beam, the high-voltage distribution box or battery pack can be installed at the bottom of the box through the mounting holes, avoiding the waste of the internal space of the box, and ensuring that while enhancing the bearing capacity of the entire box, the comprehensive utilization efficiency of the bottom space inside the box is greatly improved.

[0008] In an optional embodiment, the reinforcing beam includes a first support plate and a second support plate; the first support plate is arranged perpendicular to the bottom plate of the box body and is connected to the bottom plate of the box body, and at least one groove is provided on the side of the first support plate away from the bottom of the box body; the second support plate is arranged perpendicular to the first support plate, is connected to the side of the first support plate away from the bottom plate of the box body, and is enclosed with the groove to form a mounting hole; and the second support plate is arranged to protrude from the first support plate on both sides along the second direction.

[0009] Beneficial Effects: The provision of the first support plate substantially reduces the weight of the reinforced beam structure and significantly compresses the volume of space it occupies, greatly improving the compactness and space utilization efficiency of the overall structure. Since the second support plate is perpendicular to the first support plate and protrudes from the first support plate on both sides along the second direction, it not only enhances the stability of the reinforced beam in complex stress environments, but also ensures that the reinforced beam can maintain excellent load-bearing capacity and structural rigidity under high-intensity use conditions through structural complementarity and reinforcement. Through the coordination of the first and second support plates, compared to traditional steel tube beam structures, a significant weight reduction and effective reduction in structural volume are achieved while ensuring high load-bearing capacity.

[0010] In an optional embodiment, a reinforcing structure is further included, which is fixed below the second support plate and includes a plurality of side plates connected in sequence. Each inner side wall of the groove is connected to a side plate, and both sides of the side plates along the second direction protrude from the first support plate.

[0011] Beneficial Effects: By providing a reinforcement structure within the mounting hole of the reinforcement beam, a robust closed structural system is constructed in both the first and third directions of the mounting hole. This significantly enhances the structural strength around the mounting hole and effectively mitigates stress concentration issues that may arise from the opening. While optimizing the space within the box, the reinforcement beam with the mounting hole ensures that it maintains sufficient structural strength and rigidity to safely carry the weight of the battery pack and power distribution equipment, meeting or even exceeding the stringent requirements of ocean shipping and long-term use.

[0012] In an optional embodiment, a support beam is further included, and two support beams are provided under each bracket. The two support beams are respectively located on both sides of the first support plate along the second direction and are arranged between two adjacent reinforcement structures. One end of the support beam is connected to the second support plate, and the other end is connected to the bottom plate of the box.

[0013] Beneficial effect: By setting the support beam to directly act on the second support plate to support the second support plate, the structural strength of the reinforcement beam is further improved, the bearing capacity of the reinforcement beam is enhanced, and the reinforcement beam can carry a battery pack of greater weight.

[0014] In an optional embodiment, at least two brackets form a battery rack, an equipment compartment is provided between one side of the battery rack along the first direction and the side wall of the box body, a clearance groove is provided on the reinforcing beam, and the clearance groove is arranged in the equipment compartment.

[0015] Beneficial effect: By setting up the concession groove on the reinforcing beam, sufficient space is reserved for the installation of the electrical cabinet and the liquid cooler, and space conflicts and restrictions during the installation process are avoided, ensuring that the electrical cabinet and the liquid cooler can be installed in the designated position.

[0016] In an optional embodiment, it also includes a first sealing plate and a second sealing plate; the first sealing plate is arranged below the clearance groove near the bracket, one end is connected to the second support plate, and the other end extends along the third direction to the side near the bottom of the box body; and both sides of the first sealing plate along the second direction protrude from the first support plate; the third direction is perpendicular to the first direction and the second direction; the second sealing plate is arranged on the groove wall of the clearance groove near the bottom of the box body, one end is connected to the first sealing plate, and the other end extends along the first direction and connected to the side wall of the box body; and both sides of the second sealing plate along the second direction protrude from the first support plate.

[0017] Beneficial effect: Through the arrangement of the first sealing plate and the second sealing plate, the groove wall area of ​​the give way groove is constructed into a closed structure, the groove wall area of ​​the give way groove is reinforced, the structural strength of the reinforcing beam at the give way groove is enhanced, and the stability and durability of the reinforcing beam are improved.

[0018] In an optional embodiment, it also includes multiple groups of first diagonal bracing structures, which correspond one-to-one to multiple brackets respectively; the first diagonal bracing structure includes two first diagonal bracing rods, which are respectively arranged on both sides of the reinforcing beam along the second direction; a middle beam is provided on the bracket, and the middle beam is connected to the reinforcing beam, and one end of the first diagonal bracing rod is connected to the bottom of the box body, and the other end is connected to the middle beam.

[0019] Beneficial effect: Through the setting of the first diagonal bracing structure, the concentrated force that the bracket bears when carrying the battery pack is dispersed, the load pressure of the bracket is reduced, and the occurrence of stress concentration phenomenon is avoided. It not only greatly improves the bearing capacity of the bracket, ensuring that it can safely and stably support heavy battery packs, but also significantly enhances the overall stability of the bracket.

[0020] In an optional embodiment, the box body includes a top beam and multiple groups of second diagonal bracing structures; the top beam is arranged at the top of the box body, and its two ends are respectively connected to the two sides of the box body along the first direction, and the top end of the middle beam is connected to the top beam; a group of second diagonal bracing structures is provided between each two adjacent brackets, and the second diagonal bracing structure includes two second diagonal bracing rods, and the two second diagonal bracing rods are respectively arranged on the opposite sides of the two adjacent brackets; one end of the second diagonal bracing rod is connected to the middle beam, and the other end is connected to the top beam.

[0021] Beneficial effects: By setting the top beam and the second diagonal brace, the stability of the connection between the bracket and the box body is enhanced, and the stability and load-bearing capacity of the bracket are enhanced; and the top beam and the second diagonal brace cooperate with each other to form a stable support system between the bracket, so that the box body of the energy storage device can show higher structural rigidity and strength when facing external loads or the weight of internal equipment, ensuring the stable operation and long-term safety of the box body of the energy storage device under various working conditions.

[0022] In an optional embodiment, the bracket includes a first guide rail and multiple second guide rails; the first guide rail extends along the second direction and is arranged through the mounting hole, suitable for sliding connection with the high-voltage distribution box or the battery pack, so that the high-voltage distribution box or the battery pack is arranged through the mounting hole; the multiple second guide rails are arranged above the reinforcing beam, and the multiple second guide rails are arranged in sequence along the third direction; the second guide rail extends along the second direction and is suitable for sliding connection with the battery pack; the third direction is perpendicular to the first direction and the second direction.

[0023] Beneficial effect: Through the setting of the first guide rail and the second guide rail, efficient and stable sliding installation of the high-voltage distribution box and the battery pack inside the box of the energy storage device is achieved; the first guide rail and the second guide rail not only provide stable sliding support for the high-voltage distribution box and the battery pack, but also ensure that the high-voltage distribution box and the battery pack can slide smoothly along the predetermined path during the installation process, effectively avoiding accidental contact or collision with other structural parts in the box of the energy storage device; not only simplifies the installation process of the high-voltage distribution box and the battery pack, improves the installation efficiency and accuracy, but also significantly enhances the rationality of the layout of the equipment inside the box of the energy storage device.

[0024] In an optional embodiment, the box body also includes a door, which is arranged on one side of the second direction; the box body of the energy storage device also includes a first limiting structure and a second limiting structure; the first limiting structure is located on the side of the first guide rail away from the door, and protrudes from the bracket along the first direction; the second limiting structure is located on the side of the second guide rail away from the door, and protrudes from the bracket along the first direction.

[0025] Beneficial effect: Through the setting of the first limiting structure and the second limiting structure, precise control of the sliding path of the high-voltage distribution box or battery pack during the installation process is achieved, and its sliding range is effectively limited, thereby preventing the high-voltage distribution box or battery pack from unnecessary collision with the side wall of the energy storage device box away from the hatch during installation, ensuring that the high-voltage distribution box or battery pack can be safely and accurately installed to the specified position, and maintaining the rationality of the internal layout of the energy storage device box; the first limiting structure and the second limiting structure ensure the installation accuracy of the equipment inside the energy storage device box, and also significantly enhance the stability of the overall structure of the energy storage device box and the reliability of operation.

[0026] In a second aspect, the present invention further provides an energy storage device, comprising the above-mentioned box for the energy storage device.

[0027] Because the energy storage device includes a box for the energy storage device, it has the same effect as the box for the energy storage device and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in related technologies, the following briefly introduces the drawings required for use in the specific implementation methods or related technical descriptions. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 This is a schematic structural diagram of an energy storage device according to an embodiment of the present utility model;

[0030] Figure 2 A side view of an energy storage device according to an embodiment of the present invention;

[0031] Figure 3 A schematic diagram of the partial structure of the energy storage device according to an embodiment of the present utility model;

[0032] Figure 4 This is a schematic structural diagram of a box body of an energy storage device according to an embodiment of the present utility model;

[0033] Figure 5 A schematic diagram of the partial structure of the box body of the energy storage device according to an embodiment of the utility model;

[0034] Figure 6 This is a schematic structural diagram of the connection between the reinforcement beam and the bracket according to an embodiment of the utility model;

[0035] Figure 7 This is a schematic structural diagram of a reinforcement beam according to an embodiment of the present invention.

[0036] Description of reference numerals:

[0037] 1. Box body; 11. Battery rack; 111. Bracket; 1111. Middle beam; 1112. First guide rail; 1113. Second guide rail; 12. Equipment compartment; 13. Top beam; 14. Second diagonal bracing structure; 141. Second diagonal bracing rod; 15. Hatch door; 16. Front bottom beam; 17. Rear bottom beam; 2. Reinforcement beam; 21. First support plate; 22. Second support plate; 23. Mounting hole; 24. First closing plate; 25. Second closing plate; 3. High-voltage distribution box; 4. Battery pack; 5. Reinforcement structure; 6. Support beam; 7. First diagonal bracing structure; 71. First diagonal bracing rod; 8. First limiting structure; 9. Second limiting structure. DETAILED DESCRIPTION

[0038] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0039] The following combination Figures 1 to 7 , describing the embodiments of the present utility model.

[0040] According to an embodiment of the present utility model, on the one hand, a box body for an energy storage device is provided, wherein at least two brackets 111 are provided inside the box body 1, and the at least two brackets 111 are arranged in sequence along the first direction; the box body 1 includes a reinforcing beam 2, which extends along the first direction and passes through the bottom of the at least two brackets 111 in sequence and is fixed to the bottom of the box body 1; at least one mounting hole 23 is provided on the reinforcing beam 2, and the mounting hole 23 is arranged to pass through the reinforcing beam 2 along the second direction; a mounting hole 23 is provided between each two adjacent brackets 111, and the mounting hole 23 is used for the installation of the high-voltage distribution box 3 or the battery pack 4; the first direction and the second direction are perpendicular to each other.

[0041] Since the reinforcing beam 2 passes through at least two brackets 111 in sequence along the first direction, the supporting capacity of the box 1 for the bracket 111 is improved, and the load-bearing capacity of the entire box 1 is significantly enhanced; and by providing a mounting hole 23 on the reinforcing beam 2, the high-voltage distribution box 3 or the battery pack 4 can be installed at the bottom of the box 1 through the mounting hole 23, avoiding the waste of the internal space of the box 1, and ensuring that while enhancing the load-bearing capacity of the entire box 1, the comprehensive utilization efficiency of the bottom space inside the box 1 is greatly improved.

[0042] In one embodiment, the reinforcing beam 2 includes a first support plate 21 and a second support plate 22; the first support plate 21 is arranged perpendicular to the bottom plate of the box body 1 and is connected to the bottom plate of the box body 1, and at least one groove is provided on the side of the first support plate 21 away from the bottom of the box body 1; the second support plate 22 is arranged perpendicular to the first support plate 21, is connected to the side of the first support plate 21 away from the bottom plate of the box body 1, and is enclosed with the groove to form a mounting hole 23; and the second support plate 22 is arranged so that both sides along the second direction protrude from the first support plate 21.

[0043] The provision of the first support plate 21 substantially reduces the weight of the reinforcement beam 2 structure and significantly reduces the volume of space it occupies, greatly improving the compactness and space utilization efficiency of the overall structure. Since the second support plate 22 is disposed perpendicular to the first support plate 21 and protrudes from the first support plate 21 on both sides along the second direction, it not only enhances the stability of the reinforcement beam 2 in complex load-bearing environments, but also, through structural complementarity and reinforcement, ensures that the reinforcement beam 2 can maintain excellent load-bearing capacity and structural rigidity under high-intensity use conditions. The coordination of the first support plate 21 and the second support plate 22 achieves a significant weight reduction and an effective reduction in structural volume compared to traditional steel tube beam structures while maintaining high load-bearing capacity.

[0044] In one embodiment, a reinforcing structure 5 is further included, which is fixed below the second support plate 22 and includes a plurality of side plates connected in sequence. Each inner side wall of the groove is connected to a side plate, and both sides of the side plates along the second direction protrude from the first support plate 21.

[0045] By installing the reinforcement structure 5 within the mounting hole 23 of the reinforcement beam 2, a robust, closed structural system is constructed in both the first and third directions of the mounting hole 23. This significantly enhances the structural strength around the mounting hole 23 and effectively mitigates stress concentration issues that may arise from the opening. While optimizing the space within the box 1 by providing the reinforcement beam 2 with the mounting hole 23, it also ensures that the reinforcement beam 2 maintains sufficient structural strength and rigidity to safely support the weight of the battery pack and power distribution equipment, meeting or even exceeding the stringent requirements for ocean shipping and long-term use.

[0046] In one embodiment, projections of the two side panels arranged along the first direction in the third direction are covered by the projection of the bracket 111 .

[0047] Since the side panels are disposed within the mounting holes 23, to prevent the side panels from protruding from the side surfaces of the bracket 111 along the second direction and occupying the installation space for the high-voltage distribution box 3 or the battery pack 4, the two side panels of the reinforcement structure along the first direction are disposed below the bracket 111 so that they do not protrude from the side surfaces of the bracket 111 along the second direction. Specifically, the reinforcement beam 2 is an H-shaped steel or a T-shaped steel.

[0048] Specifically, the mounting hole 23 is a rectangular hole, and the dimensions of the mounting hole 23 in the first direction and the third direction are both larger than the dimensions of the battery pack 4 or the high-voltage distribution box 3 .

[0049] In one embodiment, a support beam 6 is further included. Two support beams 6 are provided under each bracket 111. The two support beams 6 are respectively located on both sides of the first support plate 21 along the second direction. One end of the support beam 6 is connected to the second support plate 22, and the other end is connected to the bottom plate of the box body 1.

[0050] By providing the support beam 6 to directly act on the second support plate 22 to support the second support plate 22, the structural strength of the reinforcing beam 2 is further improved, the bearing capacity of the reinforcing beam 2 is enhanced, and the reinforcing beam 2 can carry a heavier battery pack.

[0051] Specifically, the support beam 6 is provided between two adjacent reinforcement structures 5 .

[0052] In one embodiment, at least two brackets 111 form a battery rack 11, and an equipment compartment 12 is provided between one side of the battery rack 11 along the first direction and the side wall of the box body 1, and the equipment compartment 12 is suitable for placing an electrical cabinet and a liquid cooler; a clearance groove is provided on the reinforcing beam 2, and the clearance groove is set in the equipment compartment 12.

[0053] By providing a clearance groove on the reinforcing beam 2, sufficient space is reserved for the installation of the electrical cabinet and the liquid cooler, and space conflicts and restrictions during the installation process are avoided, ensuring that the electrical cabinet and the liquid cooler can be installed in the designated position.

[0054] In one embodiment, it also includes a first sealing plate 24 and a second sealing plate 25; the first sealing plate 24 is arranged below the give way groove near the bracket 111, one end is connected to the second support plate 22, and the other end extends along the third direction to the bottom side of the box body 1; and both sides of the first sealing plate 24 along the second direction are protruding from the first support plate 21; the third direction is perpendicular to the first direction and the second direction; the second sealing plate 25 is arranged on the groove wall of the give way groove near the bottom of the box body 1, one end is connected to the other end of the first sealing plate 24, and the other end extends along the first direction and is connected to the side wall of the box body 1; and both sides of the second sealing plate 25 along the second direction are protruding from the first support plate 21.

[0055] By setting the first closing plate 24 and the second closing plate 25, the groove wall area of ​​the give way groove is constructed into a closed structure, the groove wall area of ​​the give way groove is reinforced, the structural strength of the reinforcing beam 2 at the give way groove is enhanced, and the stability and durability of the reinforcing beam 2 are improved.

[0056] In one embodiment, it also includes multiple groups of first diagonal bracing structures 7, and the multiple groups of first diagonal bracing structures 7 correspond one-to-one to multiple brackets 111; the first diagonal bracing structure 7 includes two first diagonal bracing rods 71, and the two first diagonal bracing rods 71 ​​are respectively arranged on both sides of the reinforcing beam 2 along the second direction; a middle beam 1111 is provided on the bracket 111, and the middle beam 1111 is connected to the reinforcing beam 2, one end of the first diagonal bracing rod 71 is spaced apart from the bottom of the box body 1 and connected to the middle beam 1111, and the other end is spaced apart from the reinforcing beam 2 and connected to the bottom of the box body 1.

[0057] By setting the first diagonal support structure 7, the concentrated force that the bracket 111 bears when carrying the battery pack is dispersed, the load pressure of the bracket 111 is reduced, and the occurrence of stress concentration is avoided. This not only greatly improves the carrying capacity of the bracket 111, ensuring that it can safely and stably support heavy battery packs, but also significantly enhances the overall stability of the bracket 111.

[0058] In one embodiment, the box body 1 includes a top beam 13 and multiple groups of second diagonal bracing structures 14; the top beam 13 is arranged at the top of the box body 1, and its two ends are respectively connected to the two sides of the box body 1 along the first direction, and the top end of the middle beam 1111 is connected to the top beam 13; a group of second diagonal bracing structures 14 is provided between each two adjacent brackets 111, and the second diagonal bracing structure 14 includes two second diagonal bracing rods 141, and the two second diagonal bracing rods 141 are respectively arranged on the opposite sides of the two adjacent brackets 111; one end of the second diagonal bracing rod 141 is spaced apart from the middle beam 1111 and connected to the top beam 13, and the other end is spaced apart from the top beam 13 and connected to the middle beam 1111.

[0059] By providing the top beam 13 and the second diagonal brace, the stability of the connection between the bracket 111 and the box body 1 is enhanced, and the stability and load-bearing capacity of the bracket 111 are enhanced; and the top beam 13 and the second diagonal brace cooperate with each other to form a stable support system between the bracket 111, so that the box body of the energy storage device can exhibit higher structural rigidity and strength when facing external loads or the weight of internal equipment, ensuring the stable operation and long-term safety of the box body of the energy storage device under various working conditions.

[0060] In one embodiment, the bracket 111 includes a first guide rail 1112 and multiple second guide rails 1113; the first guide rail 1112 extends along the second direction and is arranged through the mounting hole 23, suitable for sliding connection with the high-voltage distribution box 3 or the battery pack 4, so that the high-voltage distribution box 3 or the battery pack 4 is arranged through the mounting hole 23; multiple second guide rails 1113 are arranged above the reinforcing beam 2, and multiple second guide rails 1113 are arranged in sequence along the third direction; the second guide rails 1113 extend along the second direction and are suitable for sliding connection with the battery pack 4; the third direction is perpendicular to the first direction and the second direction.

[0061] By setting the first guide rail 1112 and the second guide rail 1113, efficient and stable sliding installation of the high-voltage distribution box 3 and the battery pack 4 inside the box of the energy storage device is achieved; the first guide rail 1112 and the second guide rail 1113 not only provide stable sliding support for the high-voltage distribution box 3 and the battery pack 4, but also ensure that the high-voltage distribution box 3 and the battery pack 4 can slide smoothly along the predetermined path during the installation process, effectively avoiding accidental contact or collision with other structural parts in the box of the energy storage device; not only does it simplify the installation process of the high-voltage distribution box 3 and the battery pack, improve the installation efficiency and accuracy, but it also significantly enhances the rationality of the layout of the equipment inside the box of the energy storage device.

[0062] In one embodiment, the box body 1 also includes a hatch 15, which is arranged on one side of the second direction; the box body for the energy storage device also includes a first limiting structure 8 and a second limiting structure 9; the first limiting structure 8 is located on the side of the first guide rail 1112 away from the hatch 15, and protrudes from the bracket 111 along the first direction; the second limiting structure 9 is located on the side of the second guide rail 1113 away from the hatch 15, and protrudes from the bracket 111 along the first direction.

[0063] By setting the first limiting structure 8 and the second limiting structure 9, precise control of the sliding path of the high-voltage distribution box 3 or the battery pack 4 during the installation process is achieved, and its sliding range is effectively limited, thereby preventing the high-voltage distribution box 3 or the battery pack 4 from unnecessary collision with the side wall of the energy storage device box away from the hatch 15 during the installation process, ensuring that the high-voltage distribution box 3 or the battery pack 4 can be safely and accurately installed to the specified position, and maintaining the rationality of the internal layout of the energy storage device box; the first limiting structure 8 and the second limiting structure 9 ensure the installation accuracy of the equipment inside the box of the energy storage device, and also significantly enhance the stability of the overall structure of the box of the energy storage device and the reliability of operation.

[0064] In a specific embodiment, the high-voltage wiring harness and the low-voltage wiring harness connecting the battery pack and the high-voltage distribution box 3, as well as the liquid cooling pipe connecting the battery pack are arranged on the side of the box body 1 where the hatch 15 is provided, to facilitate the installation and maintenance of the high-voltage wiring harness and the low-voltage wiring harness and the liquid cooling pipe.

[0065] In a specific embodiment, a high-voltage wire trough is further provided at the bottom of the box body 1 . The high-voltage wire trough is arranged on a side of the first guide rail 1112 close to the cabin door 15 and is used for arranging a high-voltage wire harness.

[0066] In a specific embodiment, the high-voltage distribution box 3 and the battery pack and the energy storage device are spaced apart from each other on the side wall of the box body away from the hatch 15, and the distance between the high-voltage distribution box 3 and the battery pack and the energy storage device on the side wall away from the hatch 15 is less than or equal to 150 mm, thereby ensuring the compactness of the installation of the high-voltage distribution box 3 and the battery pack inside the box body 1 and making reasonable use of the space inside the box body 1.

[0067] In one embodiment, the box body 1 further includes a front bottom beam 16, which extends along a first direction, is located at the bottom of the box body 1, is arranged on a side of the box body 1 close to the hatch 15, and extends along the first direction; in a third direction, the distance between the top of the front bottom beam 16 and the bottom of the box body 1 is less than the distance between the first guide rail 1112 and the bottom of the box body 1.

[0068] Since in the third direction, the distance between the top of the front bottom beam 16 and the bottom of the box body 1 is smaller than the distance between the first guide rail 1112 and the bottom of the box body 1, the interference of the front bottom beam 16 in the connection process between the high-voltage distribution box 3 and the first guide rail 1112 is avoided, which helps to achieve smooth docking of the high-voltage distribution box 3 and the first guide rail 1112, and ensures that the high-voltage distribution box 3 can slide smoothly on the first guide rail 1112 and enter the interior of the box body 1 without obstruction.

[0069] In a specific embodiment, the box body 1 also includes a rear bottom beam 17, which is arranged on both sides of the first guide rail 1112 relative to the front bottom beam 16 along the second direction, and the distance between the top of the rear bottom beam 17 and the bottom of the box body 1 is greater than the distance between the top of the front bottom beam 16 and the bottom of the box body 1.

[0070] According to an embodiment of the present invention, on the other hand, an energy storage device is provided, comprising the above-mentioned box for the energy storage device.

[0071] In a specific embodiment, a plurality of battery packs and a plurality of high-voltage distribution boxes 3 are provided in the energy storage device, a group of battery packs is provided between each two adjacent brackets 111, and each group of battery packs is arranged corresponding to a high-voltage distribution box 3. The battery pack includes a plurality of battery packs 4 arranged in sequence along the third direction, and each battery pack 4 is slidably connected to the two second guide rails 1113 on both sides along the first direction.

[0072] Specifically, the high-voltage distribution box 3 is arranged at the bottom of the battery pack and is slidably connected to the first guide rail 1112 .

[0073] In a specific embodiment, high-voltage distribution boxes 3 can be arranged on both sides of the reinforcing beam 2 along the second direction, which helps to improve the space utilization rate in the box body 1.

[0074] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations shall fall within the scope defined by the appended claims.

Claims

1. A box for an energy storage device, wherein at least two brackets (111) are provided inside the box (1), and the at least two brackets (111) are arranged in sequence and spaced apart along a first direction; characterized in that: The invention comprises a reinforcing beam (2), wherein the reinforcing beam (2) extends along the first direction and sequentially passes through the bottom of at least two of the brackets (111) and is fixed to the bottom of the box body (1); at least one mounting hole (23) is provided on the reinforcing beam (2), and the mounting hole (23) is provided along the second direction through the reinforcing beam (2); one mounting hole (23) is provided between each two adjacent brackets (111), and the mounting hole (23) is used for passing and installing a high-voltage distribution box (3) or a battery pack (4); and the first direction and the second direction are perpendicular to each other.

2. The box for energy storage device according to claim 1, characterized in that: The reinforcing beam (2) comprises: A first support plate (21) is arranged perpendicular to the bottom plate of the box body (1) and connected to the bottom plate of the box body (1); at least one groove is provided on a side of the first support plate (21) facing away from the bottom of the box body (1); The second support plate (22) is arranged perpendicular to the first support plate (21), is connected to the side of the first support plate (21) away from the bottom plate of the box body (1), and is enclosed with the groove to form the mounting hole (23); and both sides of the second support plate (22) along the second direction are protruding from the first support plate (21).

3. The box for energy storage device according to claim 2, characterized in that: It also includes a reinforcing structure (5), which is fixed below the second support plate (22) and includes a plurality of sequentially connected side plates, each inner side wall of the groove is connected to one of the side plates, and both sides of the side plates along the second direction are protruding from the first support plate (21); And / or, it further includes a support beam (6), two support beams (6) are provided below each of the brackets (111), the two support beams (6) are respectively located on both sides of the first support plate (21) along the second direction, one end of the support beam (6) is connected to the second support plate (22), and the other end is connected to the bottom plate of the box body (1).

4. The box for energy storage device according to claim 3, characterized in that: At least two of the brackets (111) form a battery rack (11); an equipment compartment (12) is provided between one side of the battery rack (11) along a first direction and a side wall of the box body (1); a clearance groove is provided on the reinforcing beam (2); and the clearance groove is arranged in the equipment compartment (12).

5. The box for energy storage device according to claim 4, characterized in that: Also includes: A first sealing plate (24) is arranged below the clearance groove near the bracket (111), one end of the first sealing plate (24) is connected to the second support plate (22), and the other end extends along a third direction toward the bottom side of the box body (1); and both sides of the first sealing plate (24) along the second direction are protruding from the first support plate (21); the third direction is perpendicular to the first direction and the second direction. A second sealing plate (25) is arranged on the groove wall of the clearance groove close to the bottom of the box body (1), one end of which is connected to the first sealing plate (24), and the other end of which extends along the first direction and is connected to the side wall of the box body (1); and both sides of the second sealing plate (25) along the second direction are protruding from the first support plate (21).

6. The box for an energy storage device according to any one of claims 1 to 5, characterized in that: The invention also includes a plurality of groups of first diagonal bracing structures (7), wherein the plurality of groups of the first diagonal bracing structures (7) correspond one to one with the plurality of brackets (111); the first diagonal bracing structures (7) include two first diagonal bracing rods (71), and the two first diagonal bracing rods (71) are respectively arranged on both sides of the reinforcing beam (2) along the second direction; a middle beam (1111) is provided on the bracket (111), and the middle beam (1111) is connected to the reinforcing beam (2); one end of the first diagonal bracing rod (71) is connected to the bottom of the box body (1), and the other end is connected to the middle beam (1111).

7. The box for energy storage device according to claim 6, characterized in that: The box (1) comprises: A top beam (13) is arranged on the top of the box body (1), and its two ends are respectively connected to the two sides of the box body (1) along the first direction, and the top end of the middle beam (1111) is connected to the top beam (13); Multiple groups of second diagonal bracing structures (14) are provided, wherein one group of the second diagonal bracing structures (14) is provided between each two adjacent brackets (111), and the second diagonal bracing structures (14) include two second diagonal bracing rods (141), and the two second diagonal bracing rods (141) are respectively provided on opposite sides of the two adjacent brackets (111); one end of the second diagonal bracing rod (141) is connected to the middle beam (1111), and the other end is connected to the top beam (13).

8. The box for an energy storage device according to any one of claims 1 to 5 or 7, characterized in that: The support (111) comprises: A first guide rail (1112) extends along the second direction and is arranged through the mounting hole (23), suitable for being slidably connected to a high-voltage distribution box (3) or a battery pack (4), so that the high-voltage distribution box (3) or the battery pack (4) is arranged through the mounting hole (23); a plurality of second guide rails (1113) are arranged above the reinforcing beam (2), and the plurality of second guide rails (1113) are arranged in sequence along a third direction; the second guide rails (1113) extend along the second direction and are suitable for being slidably connected to the battery pack (4); the third direction is perpendicular to the first direction and the second direction.

9. The box for energy storage device according to claim 8, characterized in that: The box (1) further includes a hatch (15) arranged on one side of the second direction; the box for the energy storage device further includes: a first limiting structure (8), located on a side of the first guide rail (1112) away from the cabin door (15), and protruding from the bracket (111) along a first direction; The second limiting structure (9) is located on a side of the second guide rail (1113) away from the cabin door (15) and is arranged to protrude from the bracket (111) along a first direction.

10. An energy storage device, characterized in that: A box for an energy storage device comprising the box according to any one of claims 1 to 9.

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