Battery energy storage cabinet

Abstract

The invention discloses a battery energy storage cabinet which comprises a cabinet body, a bottom cross beam frame, a top cross beam frame and a supporting stand column are arranged on the cabinet body, a plurality of battery bearing guide rails are distributed on the supporting stand column at equal intervals, battery packs are arranged on the battery bearing guide rails, and battery pack front end fixing holes are formed in the front ends of the battery bearing guide rails. A battery pack rear end limiting folding edge is arranged at the rear end of the battery bearing guide rail, the battery pack can abut against the battery pack rear end limiting folding edge, and a battery pack upper end limiting assembly is arranged on the battery bearing guide rail; the upper end face of the cabinet body is provided with a plurality of hoisting pieces, the hoisting pieces and the supporting stand columns are arranged in a one-to-one correspondence mode, receding holes are formed in the positions, corresponding to the hoisting pieces, of the top cross beam frame, the hoisting pieces penetrate through the corresponding receding holes and then are fixedly connected with the supporting stand columns, and the hoisting pieces are connected with the top cross beam frame in a sealed mode. According to the invention, the battery pack can be limited and fixed on the battery bearing guide rail, so that the problem of shaking of the battery pack is avoided; and meanwhile, the safety of hoisting and carrying can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage systems, and in particular to a battery energy storage cabinet. Background Art

[0002] Since the energy people need is highly temporal and spatial, in order to make rational use of energy and improve energy utilization, a device is needed to collect and store excess energy that is temporarily unused for a period of time, and then extract and use it during peak usage, or transport it to places where energy is scarce for use. This method is energy storage.

[0003] The basic task of the energy storage system is to overcome the temporal or local differences between energy supply and demand. Battery energy storage system is a common energy storage system, and battery energy storage cabinet is the main component of the battery energy storage system. The existing battery energy storage cabinets still have the following problems:

[0004] 1. After the battery pack is inserted into the battery energy storage cabinet, the rear end cannot be operated due to limited space, resulting in the inability to fix the rear end of the battery pack. As a result, the battery pack will shake violently due to the gap during handling or transportation, which may easily cause damage to the battery pack and even lead to safety accidents.

[0005] 2. Since the energy storage system pursues high energy density, the batteries installed in the cabinet are very heavy. Compared with the electric cabinet and the battery energy storage cabinet of the same volume, if the electric cabinet weighs 1 ton, the battery energy storage cabinet can reach 3 tons to 5 tons. The lifting rings installed on the existing battery energy storage cabinets are usually fixed with the cabinet body by threads. It is difficult for the lifting rings to form the main force transmission system with the main load-bearing beams, and it is easy to be damaged by local force alone; on the other hand, the threaded connection is easy to loosen during transportation vibration, resulting in a decrease in connection reliability, resulting in the risk of falling and damage to the existing battery energy storage cabinets during hoisting. Summary of the invention

[0006] In order to solve some or all of the problems existing in the above-mentioned prior art, the present invention provides a battery energy storage cabinet, including a cabinet body, wherein a bottom crossbeam frame, a top crossbeam frame and a supporting column are provided on the cabinet body, and two ends of the supporting column are respectively connected to the bottom crossbeam frame and the top crossbeam frame, and a plurality of battery bearing rails are distributed on the supporting column at equal intervals, and a battery pack is provided on the battery bearing rail, and the battery pack is slidably limitedly connected to the battery bearing rail, and a front end fixing hole of the battery pack is provided at the front end of the battery bearing rail, and a rear end limiting folding edge of the battery pack is provided at the rear end of the battery bearing rail, and the battery pack can abut against the rear end limiting folding edge of the battery pack, and a battery pack upper end limiting assembly is provided on the battery bearing rail; a plurality of hanging parts are provided on the upper end surface of the cabinet body, and the hanging parts are arranged in a one-to-one correspondence with the supporting columns, and avoidance holes are respectively provided at positions corresponding to the hanging parts on the top crossbeam frame, and the hanging parts are fixedly connected to the supporting columns after passing through the corresponding avoidance holes, and the hanging parts are sealedly connected to the top crossbeam frame.

[0007] As a further improvement of the present invention, the upper end limit assembly of the battery pack includes a rotating member and a pulling member. The rotating member is rotatably connected to the battery carrying guide rail, one end of the pulling member is connected to the rotating member, and the other end is movably limitedly connected to the battery carrying guide rail, and the pulling member can drive the rotating member to rotate, thereby driving the rotating member to abut or separate from the upper end surface of the battery pack.

[0008] As a further improvement of the present invention, the rotating part includes a connecting part and a limiting part, the battery carrying guide rail is provided with a rotating shaft, the connecting part is rotatably connected to the rotating shaft, one end of the limiting part is connected to the connecting part, and the other end can abut against the upper end surface of the battery pack.

[0009] As a further improvement of the present invention, a limiting guide is provided on the battery carrying guide rail, one end of the limiting guide is connected to the battery carrying guide rail, and the other end is sleeved on the periphery of the connecting portion and slidably cooperates with the connecting portion.

[0010] As a further improvement of the present invention, a flexible protective block is provided at one end of the limiting portion away from the connecting portion.

[0011] As a further improvement of the present invention, a connecting shaft is provided on the rotating member, one end of the pulling member is rotatably connected to the connecting shaft, and the other end is provided with a threaded rod. A front end fixing plate is provided on the battery carrying guide rail, and the threaded rod and the front end fixing plate are adjustable and limitedly connected.

[0012] As a further improvement of the present invention, a limiting bending edge is provided on the front end fixing plate, and one end of the threaded rod away from the pulling member passes through the limiting bending edge. A first limiting nut and a second limiting nut are provided on the threaded rod, and the first limiting nut and the second limiting nut are respectively located on both sides of the limiting bending edge. The first limiting nut and the second limiting nut are respectively screwed to the threaded rod, and the first limiting nut can abut against a side of the limiting bending edge away from the pulling member, and the second limiting nut can abut against a side of the limiting bending edge close to the pulling member.

[0013] As a further improvement of the present invention, the hanging member is provided with a slot that matches the shape of the supporting column, the supporting column is engaged with the slot, and the side wall of the slot is fixed to the supporting column by welding.

[0014] As a further improvement of the present invention, the outer side wall of the hanging component is welded and sealed to the top cross beam frame.

[0015] As a further improvement of the present invention, a plurality of support legs of the same height are provided at the lower end of the bottom cross beam frame, and a support plate is provided on the lower end surface of the support legs.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention can limit and fix the battery pack on the battery bearing rail through the cooperation of the fixing hole at the front end of the battery pack, the limiting folding edge at the rear end of the battery pack and the limiting assembly at the upper end of the battery pack, thereby avoiding the problem of shaking of the battery pack due to the gap, solving the problem of battery pack damage or safety accidents during handling and transportation, and improving the stability of work.

[0018] 2. In the present invention, the lifting parts are fixedly connected to the supporting columns, thereby improving the structural rigidity of the cabinet, so that each supporting column can be stressed during the lifting process, reducing the risk of damage to the cabinet due to a single point on the cabinet being stressed; at the same time, it also avoids the problem of loose threaded connections, reduces the risk of the battery energy storage cabinet falling during lifting, and improves the safety of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the present invention or the solutions in the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0021] Figure 2 It is a schematic diagram of the internal structure of an embodiment of the present invention;

[0022] Figure 3 is a schematic diagram of the three-dimensional structure of a battery carrying guide rail in an embodiment of the present invention;

[0023] Figure 4 is a front view structural schematic diagram of a battery carrying guide rail in an embodiment of the present invention;

[0024] Figure 5 2 is a schematic diagram of the structure of the top cross beam frame in an embodiment of the present invention;

[0025] Figure 6 Schematic diagram of the structure of the lifting component in the embodiment of the present invention. DETAILED DESCRIPTION

[0026] Unless otherwise defined, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs; the terms used in the specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present invention or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0027] Reference to "embodiments" in the present invention means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it mutually exclusive, independent, or alternative to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in the present invention may be combined with other embodiments.

[0028] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0029] like Figure 1-6As shown, a battery energy storage cabinet includes a cabinet body 1, on which a bottom crossbeam frame 2, a top crossbeam frame 3 and a support column 4 are provided, and the two ends of the support column 4 are respectively welded and fixed to the bottom crossbeam frame 2 and the top crossbeam frame 3, and a plurality of battery bearing rails 5 are evenly spaced and distributed on the support column 4, and a battery pack 6 is provided on the battery bearing rail 5, and the battery pack 6 is slidably limitedly connected to the battery bearing rail 5, and the battery pack 6 is limitedly fixed in the cabinet body 1 through the battery bearing rail 5. A battery pack front end fixing hole 61 is provided at the front end of the battery bearing rail 5, and when the battery pack 6 is pushed into the battery bearing rail 5, the fixing hole on the battery pack 6 will be aligned with the battery pack front end fixing hole 61, so that the front end of the battery pack 6 is connected and fixed to the battery bearing rail 5 by passing bolts. The rear end of the battery carrying guide rail 5 is provided with a battery pack rear end limiting fold 62, and the battery pack 6 can abut against the battery pack rear end limiting fold 62. The battery pack 6 is pushed to slide on the battery carrying guide rail 5 until the rear end of the battery pack 6 abuts against the battery pack rear end limiting fold 62, and then the rear end of the battery pack 6 is limited by the battery pack rear end limiting fold 62 to prevent the battery pack 6 from shaking.

[0030] A battery pack upper end limiting assembly is provided on the battery carrying rail 5, and the battery pack upper end limiting assembly is used to limit the upper end surface of the battery pack 6, and then the battery pack 6 can be limited and fixed on the battery carrying rail 5 through the cooperation of the battery pack front end fixing hole 61, the battery pack rear end limiting fold 62 and the battery pack upper end limiting assembly, thereby solving the problem of the battery pack 6 shaking due to the gap, and solving the problem of the battery pack 6 being damaged or causing safety accidents during handling and transportation.

[0031] The upper end limit assembly of the battery pack includes a rotating member 7 and a pulling member 8. The rotating member 7 is rotatably connected to the battery carrying rail 5. One end of the pulling member 8 is connected to the rotating member 7, and the other end is movably limited to the battery carrying rail 5. The pulling member 8 can drive the rotating member 7 to rotate, thereby driving the rotating member 7 to abut or separate from the upper end surface of the battery pack 6. In the process of installing the battery pack 6, the battery pack 6 is placed on the battery carrying rail 5, and then the battery pack 6 is pushed to slide on the battery carrying rail 5 until the rear end of the battery pack 6 abuts against the limiting fold 62 of the rear end of the battery pack; at this time, the fixing screw hole on the battery pack 6 is also exactly aligned with the front end fixing hole 61 of the battery pack, and the front end of the battery pack 6 is fixed to the battery carrying rail 5 by screwing in the fixing bolt; finally, by operating the pulling member 8, the rotating member 7 is rotated until the rotating member 7 abuts against the upper end surface of the battery pack 6, so that the battery pack 6 is limited and fixed on the battery carrying rail 5.

[0032] The rotating member 7 includes a connecting portion 71 and a limiting portion 72. The connecting portion 71 is hinged to the battery-carrying guide rail 5 and the pulling member 8, respectively. One end of the limiting portion 72 is fixedly connected to the connecting portion 71, and the other end can abut against the upper end surface of the battery pack 6. Specifically, a rotating shaft 63 is provided on the battery-carrying guide rail 5, and the connecting portion 71 is rotatably connected to the rotating shaft 63. When in use, after the battery pack 6 is pushed onto the battery-carrying guide rail 5 until the rear end surface of the battery pack 6 abuts against the limiting fold 62 at the rear end of the battery pack, by pulling the pulling member 8, the connecting portion 71 can be driven to rotate on the battery-carrying guide rail 5 along the rotating shaft 63 as the axis, and the limiting portion 72 is driven to move together until the limiting portion 72 abuts against the upper end surface of the battery pack 6, thereby achieving the purpose of limiting the upper end surface of the battery pack 6.

[0033] In order to prevent the limiting portion 72 from crushing the upper end surface of the battery pack 6, a flexible protective block 64 is provided at one end of the limiting portion 72 away from the connecting portion 71. The flexible protective block 64 enables the limiting portion 72 to achieve soft contact with the upper end surface of the battery pack 6, thereby preventing embossing or crushing the battery pack 6. The flexible protective block 64 can be made of a flexible material such as rubber.

[0034] In order to limit and guide the rotation direction of the rotating part 7, a limiting guide part 9 is provided at the position corresponding to the rotating part 7 on the battery carrying guide rail 5, and the connecting part 71 and the limiting guide part 9 are slidably connected and limited; through the cooperation between the connecting part 71 and the limiting guide part 9, the rotation direction of the rotating part 7 can be limited and guided, thereby ensuring that the limiting part 72 can abut against the upper end surface of the battery pack 6, and the battery pack 6 is limited and fixed on the battery carrying guide rail 5.

[0035] Specifically, one end of the limiting guide member 9 is connected to the battery carrying rail 5, and the other end is sleeved on the periphery of the connecting portion 71 and slidably cooperates with the connecting portion 71. In this embodiment, the limiting guide member 9 is riveted and fixed to the battery carrying rail 5 by rivets, and the other end is a bent edge, and the bent edge and the side wall of the battery carrying rail 5 form a gap suitable for the thickness of the connecting portion 71, and the connecting portion 71 of the rotating member 7 passes through the gap and can slide in the gap, thereby achieving the purpose of rotationally limiting and guiding the rotating member 7.

[0036] A connecting shaft 73 is installed on the rotating member 7, and one end of the pulling member 8 is rotatably connected to the connecting shaft 73, so that the pulling member 8 can pull the rotating member 7 to rotate. A threaded rod 10 is provided at the other end of the pulling member 8, and a front end fixing plate 51 is provided on the battery bearing rail 5. The threaded rod 10 and the front end fixing plate 51 are adjustable and limited. When installing the battery pack 6, the threaded rod 10 and the front end fixing plate 51 are first loosened, so that the threaded rod 10 can be pushed and then the pulling member 8 is pushed, so that the rotating member 7 rotates upward, so that the battery pack 6 can be pushed onto the battery bearing rail 5; when the rear end face of the battery pack 6 abuts against the rear end limiting fold 62 of the battery pack, the threaded rod 10 is pulled to drive the pulling member 8, and the rotating member 7 is driven to rotate downward until the limiting portion 72 abuts against the upper end face of the battery pack 6, and then the threaded rod 10 is connected and fixed to the front end fixing plate 51, so that the rotating member 7 is fixed to prevent the battery pack 6 from loosening due to the rotation of the rotating member 7 during use.

[0037] Specifically, a limiting bending edge 52 is provided on the front end fixing plate 51, and one end of the threaded rod 10 away from the pulling member 8 passes through the limiting bending edge 52. A first limiting nut 11 is provided on the threaded rod 10, and the first limiting nut 11 is threadedly connected to the threaded rod 10, and the first limiting nut 11 can abut against the side of the limiting bending edge 52 away from the pulling member 8. During the installation of the battery pack 6, first loosen the first limiting nut 11 so that the threaded rod 10 can be pushed into the limiting bent edge 52, so that the pulling member 8 pushes the rotating member 7 to rotate upward, so as to push the battery pack 6 into contact with the limiting bent edge 62 at the rear end of the battery pack; when the battery pack 6 is installed in place, pull the threaded rod 10 to drive the pulling member 8, so that the rotating member 7 rotates downward until the limiting portion 72 abuts against the upper end surface of the battery pack 6; then tighten the first limiting nut 11 until the first limiting nut 11 abuts against the limiting bent edge 52; and then the limiting of the first limiting nut 11 can prevent the threaded rod 10 from retracting, thereby realizing the limiting function of the pulling member 8 and the rotating member 7.

[0038] In order to prevent the rotating member 7 from rotating downward due to gravity when installing the battery pack 6, a second limiting nut 12 is provided on the threaded rod 10. The first limiting nut 11 and the second limiting nut 12 are respectively located on both sides of the limiting bending edge 52. The second limiting nut 12 is threadedly connected to the threaded rod 10, and the second limiting nut 12 can abut against the side of the limiting bending edge 52 close to the pulling member 8. When installing the battery pack 6, the first limiting nut 11 is first loosened, and then the threaded rod 10 is pushed to move in the direction close to the rotating member 7. The threaded rod 10 will drive the pulling member 8 and thus push the rotating member 7 to rotate upward. When the limiting portion 72 rotates upward to a suitable position, the second limiting nut 12 is tightened until the second limiting nut 12 abuts against the side of the limiting bending edge 52 close to the pulling member 8, thereby preventing the rotating member 7 from automatically rotating downward through the limitation of the second limiting nut 12. After the battery pack 6 is installed in place, loosen the second limiting nut 12, pull the threaded rod 10 to drive the pulling member 8 and thereby pull the rotating member 7 to rotate downward until the limiting portion 72 abuts against the upper end surface of the battery pack 6; then tighten the first limiting nut 11 and the second limiting nut 12 respectively; until the first limiting nut 11 and the second limiting nut 12 abut against the two sides of the limiting bending edge 52 respectively.

[0039] The first limiting nut 11 and the second limiting nut 12 can not only limit the position of the rotating member 7, but also prevent the nut from loosening due to vibration during transportation or handling, thereby improving the stability of the structure.

[0040] In this embodiment, the rotation angle of the rotating member 7 on the battery carrying rail 5 is 0-130°, preferably 0-79°. The specific rotation angle value can be adaptively set according to the side thickness of the battery pack 6, and it is only necessary to ensure that after the rotating member 7 rotates upward, the battery pack 6 can be smoothly pushed onto the battery carrying rail 5 until the rear end of the battery pack 6 abuts against the rear end limit fold 62 of the battery pack.

[0041] In order to facilitate the hoisting of the battery energy storage cabinet, a plurality of hoisting parts 13 are provided on the upper end surface of the cabinet body 1. The hoisting parts 13 are arranged one by one with the supporting columns 4. By arranging the hoisting parts 13, the battery energy storage cabinet can be suitable for hoisting and transportation. In order to ensure the stability of hoisting and transportation, avoidance holes 31 are respectively provided at the positions corresponding to the hoisting parts 13 on the top crossbeam frame 3. The hoisting parts 13 are welded and fixed to the supporting columns 4 after passing through the corresponding avoidance holes 31, and the hoisting parts 13 are sealed and connected to the top crossbeam frame 3. By welding and fixing the hoisting parts 13 to the corresponding supporting columns 4 respectively, each supporting column 4 can be stressed during the hoisting process, reducing the risk of damage to the cabinet body 1 caused by only a certain point on the cabinet body 1 being stressed alone; at the same time, the problem of loose threaded connection is also avoided. During hoisting and transportation, the hoisting rope is hung on each hoisting part 13, and it can be hoisted and transported by a crane.

[0042] In order to improve the installation stability of the hanging piece 13 on the supporting column 4, a slot 131 matching the shape of the supporting column 4 is provided on the hanging piece 13; during the assembly process, after the hanging piece 13 passes through the corresponding avoidance hole 31, each supporting column 4 is respectively inserted into the slot 131 of the corresponding hanging piece 13 for clamping, and the matching gap between the side wall of the slot 131 and the supporting column 4 is fully welded, so that the supporting column 4 and the hanging piece 13 are welded and fixed. By providing the slot 131, on the one hand, it is convenient to quickly install and position the supporting column 4 and the hanging piece 13, and on the other hand, it also increases the contact area between the supporting column 4 and the hanging piece 13, thereby increasing the welding area and improving the connection stability between the supporting column 4 and the hanging piece 13.

[0043] In this embodiment, the hoisting member 13 is a steel plate with an integrated structure, and the thickness of the hoisting member 13 is -mm. Its strength is far greater than the strength requirement for hoisting the energy storage cabinet, and is suitable for various high-strength hoisting.

[0044] After the hanging piece 13 passes through the avoidance hole 31, the outer wall of the hanging piece 13 and the inner wall of the corresponding avoidance hole 31 are fully welded and sealed, so that the hanging piece 13 and the top crossbeam frame 3 are welded and sealed to prevent water vapor and dust from entering the cabinet 1 through the matching gap between the avoidance hole 31 and the hanging piece 13, thereby ensuring the safety of electrical work in the cabinet 1.

[0045] In order to facilitate hoisting, a hanging rope hole 132 is provided on the hoisting member 13 ; when hoisting, a hook or a hanging rope on the crane can be passed through the hanging rope hole 132 , so that the energy storage cabinet can be hoisted by the hoisting member 13 .

[0046] In order to further improve the hoisting stability, in this embodiment, there are four hoisting parts 13 and four supporting columns 4, and the two are arranged in a one-to-one correspondence. The four supporting columns 4 are distributed in a rectangular shape on the bottom crossbeam frame 2. By providing four hoisting parts 13 and four supporting columns 4, the load-bearing frame can be stressed at four points during hoisting, and the weight of the energy storage cabinet is distributed to the four hoisting parts 13, thereby reducing the stress on a single hoisting part 13 and improving the safety and stability of hoisting.

[0047] A plurality of support legs 14 of the same height are installed at the lower end of the bottom cross beam frame 2. The support legs 14 are provided to facilitate the stable placement of the energy storage cabinet on the ground or a tabletop; and the support legs 14 are provided so that the battery energy storage cabinet can be suitable for forklift transportation. Specifically, the plug of the forklift can be inserted into the gap between the support legs 14, so that the forklift can be driven to lift the bottom cross beam frame 2, thereby lifting the energy storage cabinet and realizing forklift transportation.

[0048] In order to improve the stability of the energy storage cabinet when placed on the ground or a table, a support plate 15 is installed at the lower end of the support foot 14; by providing the support plate 15, the contact area between the energy storage cabinet and the ground or table can be increased, so that it can be placed more stably on the ground or a table, thereby improving practicality.

[0049] When the battery energy storage cabinet needs to be transported, if a forklift is used for forklifting, the forklift only needs to be inserted into the gap between the supporting legs 14, and the forklift can be driven to lift the bottom crossbeam frame 2, thereby lifting the energy storage cabinet and realizing forklifting. If a crane is used for lifting and transporting, a lifting rope or a hook with a lifting rope installed can be passed through the hanging rope holes 132 of each lifting member 13, and the other end of the lifting rope or the hook is hung on the crane, and the battery energy storage cabinet can be lifted by driving the crane, thereby realizing lifting and transporting.

[0050] The above-mentioned specific implementation is a preferred implementation of the present invention, and is not intended to limit the specific implementation scope of the present invention. The scope of the present invention includes but is not limited to this specific implementation. All equivalent changes made in accordance with the present invention are within the protection scope of the present invention.

Claims

1. A battery energy storage cabinet, characterized in that: A cabinet body is included, wherein a bottom crossbeam frame, a top crossbeam frame and a supporting column are provided on the cabinet body, and two ends of the supporting column are respectively connected to the bottom crossbeam frame and the top crossbeam frame, and a plurality of battery-carrying guide rails are evenly spaced and distributed on the supporting column, and a battery pack is provided on the battery-carrying guide rail, and the battery pack is slidably limitedly connected to the battery-carrying guide rail, and a front fixing hole for the battery pack is provided at the front end of the battery-carrying guide rail, and a rear limit folding edge of the battery pack is provided at the rear end of the battery-carrying guide rail, and the battery pack can abut against the rear limit folding edge of the battery pack, and a battery pack upper limit assembly is provided on the battery-carrying guide rail; The upper end surface of the cabinet body is provided with a plurality of hanging parts, and the hanging parts are arranged in a one-to-one correspondence with the supporting columns. Avoidance holes are respectively provided at positions corresponding to the hanging parts on the top cross beam frame. The hanging parts are fixedly connected to the supporting columns after passing through the corresponding avoidance holes, and the hanging parts are sealedly connected to the top cross beam frame.

2. The battery energy storage cabinet according to claim 1, characterized in that: The upper end limit assembly of the battery pack includes a rotating member and a pulling member. The rotating member is rotatably connected to the battery supporting guide rail. One end of the pulling member is connected to the rotating member, and the other end is movably limitedly connected to the battery supporting guide rail. The pulling member can drive the rotating member to rotate, thereby driving the rotating member to abut or separate from the upper end surface of the battery pack.

3. The battery energy storage cabinet according to claim 2, characterized in that: The rotating member includes a connecting portion and a limiting portion. The battery carrying guide rail is provided with a rotating shaft. The connecting portion is rotatably connected to the rotating shaft. One end of the limiting portion is connected to the connecting portion, and the other end can abut against the upper end surface of the battery pack.

4. The battery energy storage cabinet according to claim 3, characterized in that: The battery carrying guide rail is provided with a limiting guide member, one end of which is connected to the battery carrying guide rail, and the other end of which is sleeved on the periphery of the connecting portion and slidably matched with the connecting portion.

5. The battery energy storage cabinet according to claim 3, characterized in that: A flexible protective block is provided at one end of the limiting portion away from the connecting portion.

6. The battery energy storage cabinet according to claim 2, characterized in that: The rotating member is provided with a connecting shaft, one end of the pulling member is rotatably connected to the connecting shaft, and the other end is provided with a threaded rod. The battery carrying guide rail is provided with a front end fixing plate, and the threaded rod is adjustable and limitedly connected to the front end fixing plate.

7. The battery energy storage cabinet according to claim 6, characterized in that: The front end fixing plate is provided with a limiting bending edge, and one end of the threaded rod away from the pulling member passes through the limiting bending edge. The threaded rod is provided with a first limiting nut and a second limiting nut, and the first limiting nut and the second limiting nut are respectively located on both sides of the limiting bending edge, and the first limiting nut and the second limiting nut are respectively screwed with the threaded rod, and the first limiting nut can abut against the side of the limiting bending edge away from the pulling member, and the second limiting nut can abut against the side of the limiting bending edge close to the pulling member.

8. The battery energy storage cabinet according to any one of claims 1 to 7, characterized in that: The hanging part is provided with a slot which matches the shape of the supporting column, the supporting column is engaged with the slot, and the side wall of the slot is fixedly welded to the supporting column.

9. The battery energy storage cabinet according to claim 8, characterized in that: The outer side wall of the hanging part is welded and sealed to the top crossbeam frame.

10. The battery energy storage cabinet according to claim 8, characterized in that: The lower end of the bottom cross beam frame is provided with a plurality of support feet with the same height, and the lower end surfaces of the support feet are provided with support plates.

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