Stacked battery system

Abstract

The utility model provides a stacked battery system, which comprises a bottom layer frame; a plurality of middle-layer frames; the middle-layer frames are sequentially stacked on the bottom-layer frame in the direction from the bottom layer to the top layer. A top layer frame; the top-layer frame is stacked on the uppermost middle-layer frame in the plurality of middle-layer frames; wherein the bottom layer frame comprises a base and a fence, and the fence is vertically installed on the base; the base comprises a plurality of edge supporting beams which define a preset shape, and a plurality of first middle supporting beams which are arranged in parallel at intervals are fixedly arranged between the two oppositely-arranged edge supporting beams in the first direction. A plurality of spaced and parallel second middle supporting beams are fixedly arranged between every two adjacent first middle supporting beams in the second direction perpendicular to the first direction; a plurality of installation blocks used for being assembled with the whole vehicle are fixedly arranged between the first middle supporting beam closest to the edge and the adjacent edge supporting beam. According to the invention, excellent structure adaptability, high assembly feasibility and convenient maintenance feasibility are achieved, the hierarchical frame structure enables disassembly and replacement to be more convenient, and the maintenance and repair time and cost are greatly reduced.

Description

Technical Field

[0001] The utility model relates to a battery stacking technology, in particular to a battery stacking system. Background Art

[0002] There are usually two main ways to design the stacking structure of a battery system: one is to adopt a multi-layer stacking structure with the same structure, and the other is to adopt a layered stacking structure under the same large framework.

[0003] Multi-layer stacking of the same structure can be accomplished by assembling and connecting the assembled sub-assemblies together in multiple layers after the single-layer sub-assemblies are assembled. In this structure, battery cells or modules are assembled in a single layer, following the same structural design. Each layer is called a "sub-assembly," a module consisting of multiple battery cells (cells). These cells are typically connected in series or parallel and may include electronic components such as battery monitoring devices, parts of the cooling system, and safety devices. Once the single-layer sub-assemblies are assembled, they are stacked vertically to form a multi-layer battery pack. Each layer of sub-assemblies is secured together using bolts, clips, welding, or other mechanical fastening methods. For multi-layer stacking within a single mainframe, the mainframe must be assembled first, followed by the assembled single-layer sub-assemblies being hoisted and connected into place. In this structure, assembly of each sub-assembly may occur simultaneously with or after the mainframe is assembled. The assembled sub-assemblies must be precisely positioned in their designated locations within the mainframe and secured by hoisting or other means.

[0004] However, the existing multi-layer stacking structure with the same structure adopts the same design for each layer, which results in the frame structure on the lower layer having to bear greater structural stress under the same structure, thus leading to the short board effect. In order to make the structural strength of the entire system meet the use requirements, it is inevitable to strengthen each layer of the structure, but this will cause strength redundancy of the upper structure, thereby increasing unnecessary costs. The existing layered stacking structure under the same large frame has roughly the same structural strength requirements for each layer, as each layered structure is connected to the external frame respectively. It only requires the external overall frame to meet the system strength requirements. However, the maintainability of this structure is relatively poor. In actual use, if the battery pack needs to be replaced, it may require large-scale disassembly and assembly. It cannot be directly removed by removing the connection between the single layer that needs to be repaired and the upper and lower layers, as in the case of a direct stacking structure. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a stacked battery system for solving the technical problems in the prior art of large stress borne by the frame structure at the lower layer leading to deformation and poor maintainability.

[0006] To achieve the above-mentioned purpose, the present invention provides a stacked battery system, comprising: a bottom frame; a plurality of middle frames; each middle frame is stacked on the bottom frame in sequence along the direction from the bottom to the top; a top frame; the top frame is stacked on the topmost middle frame among the plurality of middle frames; wherein, the bottom frame comprises a base and a fence, and the fence is vertically installed on the base; the base comprises a plurality of edge support beams forming a preset shape, a plurality of spaced and parallel first intermediate support beams are fixedly provided along a first direction between two relatively arranged edge support beams, and a plurality of spaced and parallel second intermediate support beams are fixedly provided along a second direction perpendicular to the first direction between two adjacent first intermediate support beams; a plurality of mounting blocks for assembly with the entire vehicle are fixedly provided between the first intermediate support beam closest to the edge and the adjacent edge support beams.

[0007] In some embodiments of the present application, the fence of the bottom frame includes an open surface, and the remaining surfaces include a plurality of spaced and parallel columns arranged on corresponding edge support beams, the top end of each column is fixedly connected to the top beam of the fence, and the bottom end is fixedly connected to the corresponding edge support beam.

[0008] In some embodiments of the present application, among the plurality of posts on the side facing the opening in the fence, the middle post is provided with a reinforcement structure.

[0009] In some embodiments of the present application, a supporting plate is provided on the inner surface of the base that contacts the battery.

[0010] In some embodiments of the present application, the base thickness of the bottom frame is greater than the base thickness of the middle frame and the top frame.

[0011] In some embodiments of the present application, in the stacked battery system, a plurality of first positioning portions are provided on the top of the lower frame, and a corresponding number of second positioning portions are provided at corresponding positions on the bottom of the upper frame stacked above the lower frame. The upper frame is assembled to the lower frame by positioning the first positioning portions and the second positioning portions relative to each other.

[0012] In some embodiments of the present application, the first positioning portion and the second positioning portion are one and the other of a guide positioning pin and a guide positioning hole; the lower frame and the upper frame that are positioned with each other include the bottom frame and the bottom middle frame, the middle frames and middle frames stacked up and down, and the top middle frame and the top frame.

[0013] In some embodiments of the present application, the top frame is provided with top support beams on two opposite sides, and the top support beams are integrated with a plurality of hoisting parts for hoisting the entire system.

[0014] In some embodiments of the present application, the thickness of the top support beam is at least 4 mm.

[0015] In some embodiments of the present application, the stacked battery system further includes an upper cover plate; the upper cover plate is covered and fixed on the top frame.

[0016] As described above, the present invention relates to a stacked battery system having the following beneficial effects: excellent structural adaptability, the design can flexibly adjust the number of frames according to the specific needs of the system to adapt to different vehicle models and space requirements, ensuring wide applicability; high assembly feasibility, the hierarchical frame design makes transportation and assembly positioning easier, improves assembly efficiency, and reduces operational difficulty; convenient maintenance feasibility, the hierarchical frame structure makes disassembly and replacement more convenient, greatly reducing the time and cost of maintenance and repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Shown is a structural schematic diagram of a stacked battery system in one embodiment of the present invention.

[0018] Figure 2A Shown is a top view of the bottom frame in one embodiment of the present invention.

[0019] Figure 2B Shown is a bottom view of the bottom frame in one embodiment of the present invention.

[0020] Figure 2C Shown is a side view of the bottom frame in one embodiment of the present invention.

[0021] Figure 2D Shown is a three-dimensional view of the bottom frame in one embodiment of the present invention.

[0022] Figure 3A Shown is a three-dimensional view of the middle frame in one embodiment of the present invention.

[0023] Figure 3B It shows a bottom view of the middle frame in one embodiment of the present invention.

[0024] Figure 3C Shown is a side view of a middle frame in one embodiment of the present invention.

[0025] Figure 4A Shown is a three-dimensional view of the top frame in one embodiment of the present invention.

[0026] Figure 4B Shown is a side view of the top frame in one embodiment of the present invention.

[0027] Component number description

[0028] 1 underlying framework

[0029] 11 Base of the bottom frame

[0030] 111 Edge support beam

[0031] 112 First intermediate support beam

[0032] 113 Second intermediate support beam

[0033] 114 Mounting Block

[0034] 115 load plate

[0035] 12 Fence of the bottom frame

[0036] 121 Column

[0037] 122 Fence top beam

[0038] 123 Baffle

[0039] 124 Strengthening structure

[0040] 2 Middle-level framework

[0041] 21 Base of the middle frame

[0042] 211 edge support beam

[0043] 212 transverse beam

[0044] 213 longitudinal beam

[0045] 22. Fence of mid-level frame

[0046] 221 baffle

[0047] 222 top beam

[0048] 223 guide pin

[0049] 3 Top-level framework

[0050] 31 Base of the top frame

[0051] 32 Fence of top frame

[0052] 321 top support beam

[0053] 322 Hoisting Department

[0054] 4 Upper cover

[0055] A, B direction

[0056] X, Y, Z1, Z2 planes DETAILED DESCRIPTION

[0057] The following describes the implementation of the present invention through specific embodiments. People familiar with this technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0058] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model. Therefore, they have no technical substantive significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed by the utility model without affecting the efficacy and purpose that can be achieved by the utility model. The following detailed description should not be considered restrictive, and the scope of the embodiments of this application is limited only by the claims of the published patents. The terms used here are only for describing specific embodiments and are not intended to limit this application. Spatial-related terms, such as "upper", "lower", "left", "right", "below", "below", "lower", "above", "upper", etc., may be used in the text to facilitate the description of the relationship between one element or feature shown in the figure and another element or feature.

[0059] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," "holding," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0060] Furthermore, as used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It should be further understood that the terms "comprise", "include" indicate the presence of the described features, operations, elements, components, items, kinds, and / or groups, but do not exclude the presence, occurrence, or addition of one or more other features, operations, elements, components, items, kinds, and / or groups. The terms "or" and "and / or" used herein are interpreted as inclusive, or mean any one or any combination. Thus, "A, B, or C" or "A, B, and / or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B, and C". Exceptions to this definition occur only when the combination of elements, functions, or operations is inherently mutually exclusive in some way.

[0061] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the following embodiments and the accompanying drawings are used to further illustrate the technical solutions in the embodiments of the present invention. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0062] like Figure 1 As shown, this utility model provides an innovative stacked battery system that adopts a direct stacking method in its overall structure. While maintaining the simplicity of direct stacking, it also provides differentiated designs for the frame structures at different levels. This design cleverly balances the requirements of overall strength, system functionality, and later maintainability.

[0063] The stacked battery system in the embodiment of the present application includes a bottom frame 1, several middle frames 2, and a top frame 3. Each middle frame 2 and top frame 3 is stacked on the bottom frame 1 in sequence from the bottom to the top, that is, the bottom middle frame 2a is stacked on the bottom frame 1, the remaining middle frames are stacked on the middle frames 2a in sequence, and the top frame 3 is stacked on the top middle frame 2b. The stacked battery system also includes an upper cover plate 4, which is fixed on the top frame 3. It should be understood that Figure 1 Only two middle-level frameworks are shown as examples, but this application does not limit the number of frameworks in actual applications.

[0064] Above, combined Figure 1 The overall structure of the stacked battery system provided in this application has been explained to some extent. The structures of the bottom frame, middle frame, and top frame will be further explained below in conjunction with the accompanying drawings.

[0065] Figures 2A to 2D What is shown is the structural diagram of the underlying framework, where Figure 2A This is a top view of the underlying framework. Figure 2B This is a bottom view of the underlying framework. Figure 2C is a side view of the underlying frame, Figure 2D It is a three-dimensional diagram of the underlying framework.

[0066] The bottom frame 1 includes a base 11 and a fence 12, and the fence 12 is vertically installed on the base 11. The base 11 includes a plurality of edge support beams 111 formed into a preset shape, such as Figure 2B The four edge support beams 111 form a rectangular shape. In actual applications, different shapes can be formed by using different numbers of edge support beams, such as a hexagon, etc., and this application does not limit this.

[0067] In the base frame 1, a plurality of spaced and parallel first intermediate support beams 112 are fixedly disposed between two opposing edge support beams 111 along a first direction A. A plurality of spaced and parallel second intermediate support beams 113 are fixedly disposed between two adjacent first intermediate support beams 112 along a second direction B perpendicular to the first direction A. Several mounting blocks 114 for assembly with the vehicle are fixedly disposed between the first intermediate support beam 112 closest to the edge and the adjacent edge support beam 111.

[0068] Specific combination Figure 2B To illustrate the structure in FIG, four first intermediate support beams 112 are provided between two opposing edge support beams 111 in the bottom frame 1. Multiple second intermediate support beams 113 are provided between each pair of these first intermediate support beams. For example, when viewed along the direction of arrow A, five second intermediate support beams 113 are provided between the first and second first intermediate support beams 112, four second intermediate support beams 113 are provided between the second and third first intermediate support beams 112, and five second intermediate support beams 113 are provided between the last two first intermediate support beams 112. Furthermore, three mounting blocks 114 are provided between the leftmost first intermediate support beam 112 and the leftmost edge support beam 111. Similarly, three mounting blocks 114 are provided between the rightmost first intermediate support beam 112 and the rightmost edge support beam 111. These support beams together form a support surface for supporting batteries, the middle frame, and the top frame.

[0069] The main function of the mounting block 114 is to tightly integrate the underlying frame with the entire vehicle. In the design of the underlying frame of the battery system, specially designed mounting points are usually included. These mounting points are precisely configured to match the structure of the vehicle chassis to ensure that the battery system is accurately positioned in the vehicle. The battery system is securely mounted on the vehicle chassis by bolts, welding or other mechanical connection means. For example, each mounting block 114 is provided with a mounting hole, which allows us to securely connect the battery system to the entire vehicle through threaded mounting parts. Since the mounting block 114 itself has a certain area, its contact area with the entire vehicle is relatively large, which helps to enhance the stability and firmness of the underlying frame. This design not only ensures the stable assembly of the battery system, but also provides additional support for the structural integrity of the entire vehicle.

[0070] In a preferred embodiment, each second intermediate support beam 113 is staggered with its adjacent second intermediate support beam 113 in the first direction A to ensure that they are not collinear. Figure 2BIn the image, you can see that the leftmost second intermediate support beam is staggered with the middle second intermediate support beam. Similarly, the middle and rightmost second intermediate support beams are staggered, so no beams are completely aligned. This clever layout helps to more effectively distribute the stress on the base, preventing the support beams from deforming or breaking when the underlying frame is subjected to high forces. By staggering the support beams, the stability and durability of the entire structure are significantly improved, providing more reliable support for the entire system.

[0071] In a preferred embodiment, the inner surface of the base 11, that is, the portion that is in direct contact with the battery, is covered with a load-bearing plate 115. The main purpose of this load-bearing plate 115 is to support the weight of the battery pack. In this way, the load-bearing plate 115 can evenly distribute the weight of the battery pack to the support beam, effectively avoiding the problem of excessive local stress caused by concentrated weight. In addition, the load-bearing plate 115 provides additional physical protection for the battery, protecting it from external impact or damage. This protective layer not only ensures the safety of the battery, but also reduces potential maintenance needs. In addition to its protective function, the load-bearing plate 115 also helps dissipate the heat generated by the battery. Through heat management, it helps maintain the performance and life of the battery. At the same time, the addition of the load-bearing plate also enhances the structural stability of the entire battery pack, providing further protection for the overall reliability and durability of the battery system. This comprehensive design has significantly improved the performance, safety and maintenance of the battery system.

[0072] In a preferred embodiment, the base thickness of the bottom frame is designed to be greater than the base thickness of the middle frame and the top frame. Since the bottom frame is located at the bottom of the entire stacking system, it must bear the weight of the entire structure and the maximum force generated thereby. Therefore, the present application has reinforced the bottom frame by increasing the thickness of the base to improve its bearing capacity and prevent deformation or breakage due to excessive force. This thickening treatment not only enhances the durability and reliability of the bottom frame, but also provides a more solid foundation for the entire structure, ensuring the stability and safety of the entire system. Through this ingenious design, the entire frame structure can maintain its integrity and functionality when facing heavy loads and pressure, thereby improving the reliability and durability of the entire system.

[0073] In the embodiment of the present application, the fence 12 includes an open surface, and the remaining surface includes a plurality of parallel columns 121 arranged on the corresponding edge support beams 111. The top end of each column 121 is fixedly connected to the fence top beam 122, and the bottom end is fixedly connected to the corresponding edge support beam 111. Figure 2D Taking the structure shown as an example, the Y surface is an open surface and is equipped with a detachable baffle 123.

[0074] It is worth mentioning that in the traditional bottom frame design, the X-side is usually designed as an open side, and this side is closed by assembling additional parts. However, this approach often leads to insufficient structural stability, which may affect the safety of the batteries installed on the bottom frame. In order to solve this problem, the present application integrates the X-side with the two side surfaces to form an integrated fence. This integrated design significantly improves the supporting force of the frame and enhances the overall stability and strength. Through this innovative design, the rigidity and durability of the bottom frame have been significantly improved, while also providing more reliable protection for the batteries. This integrated fence design not only simplifies the assembly process, but also reduces the potential risks caused by improper assembly of additional parts, thereby improving the safety and reliability of the entire system. This improvement reflects the careful consideration of structural stability and safety, and provides users with a more solid and reliable bottom frame solution.

[0075] Preferably, among the plurality of upright posts on the side facing the opening in the fence 12, the upright post 121 in the middle is provided with a reinforcement structure 124. Figure 2D For example, ribs are installed diagonally on either side of the central column 121 in the X-plane. This design increases the local stiffness of the column, preventing deformation caused by external forces and improving the stability of the overall structure. It also disperses stress on the column, reducing stress concentration and enhancing the durability of the overall structure. Furthermore, in situations of repeated stress, such as that caused by vehicle jolting, the reinforcement structure helps reduce the risk of fatigue failure and extend the service life of the structure.

[0076] It should be noted here that, in addition to the oblique reinforcement ribs on both sides of the column, the structural strength can also be enhanced by any of the following designs: (1) Wrapping the outside of the column with steel plates or steel sections, and utilizing the high strength characteristics of these materials to enhance the bearing capacity of the original structure. This method is simple to construct and can be used for reinforcement without affecting the function of the original structure. (2) By pre-applying prestress to the column, a certain compressive stress is generated in the component before it is subjected to force. This pre-applied compressive stress can effectively offset or reduce the tensile stress that may be generated by the component during normal use, thereby significantly improving the bearing capacity and crack resistance of the component. (3) Utilizing the excellent properties of carbon fiber composite materials such as high strength and high modulus, by pasting them on the surface of the column, a significant improvement in the bearing capacity and crack resistance of the component is achieved. Carbon fiber composite materials have excellent corrosion resistance and durability and can maintain stable performance for a long time. This application does not limit this.

[0077] It should be understood that since the bottom frame is located at the bottom of the entire structure, it is subject to the greatest force. Therefore, in order to ensure the stability of the structure, the bottom frame needs to be specially reinforced in structural design to prevent structural failure due to excessive load. In traditional multi-layer stacked structures, the design of each layer is usually the same, which means that the bottom frame has not been additionally reinforced. To address this problem, the embodiments of the present application have significantly improved the structural strength of the bottom frame through a series of innovative designs. Specifically, support beams are arranged in different directions and staggered to disperse stress. In addition, multiple mounting blocks have been added, and reinforcing ribs have been added. These designs not only greatly enhance the bearing capacity of the bottom frame, but also effectively avoid structural failure that may be caused by overload, thereby ensuring the stability and reliability of the entire system.

[0078] In the embodiments of the present application, in the stacked battery system, a plurality of first positioning portions are provided at the top of the lower frame, and a corresponding number of second positioning portions are provided at corresponding positions on the bottom of the upper frame stacked above the lower frame. The upper frame is assembled to the lower frame by positioning the first and second positioning portions relative to each other. The lower frame and upper frame referred to herein can include the bottom frame and the lowest middle frame, the middle frames stacked up and down, and the top middle frame and the top frame.

[0079] Exemplarily, the first positioning portion and the second positioning portion are one or the other of a guide positioning pin and a guide positioning hole, that is, a guide positioning pin can be provided at the top of the lower frame, and a corresponding number of guide positioning holes can be provided at corresponding positions on the bottom of the upper frame; or a guide positioning hole can be provided at the top of the lower frame, and a corresponding number of guide positioning pins can be provided at corresponding positions on the bottom of the upper frame. Figure 2C For example, the upper surface of the fence top beam 122 of the fence 12 is provided with a plurality of guide positioning pins 123, which can be inserted into the guide positioning holes (not shown) provided at the bottom of the middle frame, thereby achieving precise positioning of the bottom frame and the middle frame.

[0080] like Figures 3A to 3C As shown, it shows the structural diagram of the middle frame, where Figure 3A This is a three-dimensional diagram of the middle frame. Figure 3B This is the bottom view of the middle frame. Figure 3C It is a side view of the middle frame.

[0081] The middle frame 2 is also provided with a base 21 and a fence 22. The base 21 includes three edge support beams 211, and a plurality of transverse beams 212 and longitudinal beams 213 that are arranged in a transversely staggered manner. The fence 22 is provided with two opposite opening surfaces (Z1 surface and Z2 surface), and the opening surfaces are equipped with removable baffles 221. The top beam 222 of the fence 22 is provided with a plurality of guide positioning pins 223. Since the force on the middle frame is not as large as that on the bottom frame, for cost considerations, a reinforcement design similar to that on the bottom frame is not required in this embodiment. It is worth noting that since the structures of the various middle frames are the same, the number of middle frames can be flexibly increased or decreased as needed in actual applications, so as to adapt to different vehicle models and space requirements and ensure wide applicability.

[0082] like Figure 4A and 4B As shown, it shows the structural diagram of the top-level framework, where Figure 4A This is a three-dimensional diagram of the top frame. Figure 4B It is a side view of the top frame.

[0083] In the embodiment of the present application, the top frame 3 includes a base 31 and a fence 32. Since the top frame 3 is located at the top layer, it is relatively less stressed than the middle frame and the bottom frame. Therefore, there is no special requirement for its base 31, and its structure can refer to the base structure of the middle frame. The fence 32 is provided with top support beams 321 on its opposite sides, and the top support beams 321 are integrated with several hoisting parts 322 for hoisting the entire system. Figure 4A As shown, there are four lifting parts 322 distributed at the ends of the top support beam 321. The lifting parts 322 can be lifting rings, which are key components for the overall lifting of the system. The corresponding lifting equipment usually includes tools, machines and accessories for bolting and fixing the objects to be lifted, such as slings, hooks, lifting beams and clamps.

[0084] Preferably, the thickness of the top support beam 321 is at least 4 mm. It is worth noting here that the thickness of the top support beam 321 is at least 4 mm, while the thickness of other beams in the top frame is generally about 3 mm, so the thickness of the top support beam is thickened. This design is to ensure that the top support beam can safely bear the lifting ring and the additional load generated thereby. The top support beam needs to have sufficient thickness and strength to ensure that it can safely bear the weight of the lifting ring and the hoisted object during the hoisting process; the thickened beam can also provide a larger section modulus, thereby improving its bending resistance; it can also improve the durability of the structure, enabling it to withstand repeated hoisting operations and possible impact loads.

[0085] The above describes in detail the structure of the stacked battery system in the embodiment of the present application. The following describes the assembly process of the entire stacked battery system.

[0086] First, place the bottom frame at the bottom, and align the guide positioning hole of one of the middle frames with the guide positioning pins on the top of the bottom frame, and then firmly connect them together by bolting or other fixing methods.

[0087] Next, continue stacking the subsequent mid-level frames on top of the previous one in the same manner. When stacking, ensure that the guide pins of the lower mid-level frame align precisely with the guide holes of the upper mid-level frame, and secure them securely with bolts or other fastening methods.

[0088] Then, after all the middle frames are assembled in place, the top frame is placed on the uppermost middle frame. Similarly, the guide holes at the bottom of the top frame need to be aligned with the guide pins at the top of the uppermost middle frame, and they are tightly connected using bolts or other methods.

[0089] Finally, the upper cover is mounted on the top frame and fixed by screw connection, welding or other fixing methods. This embodiment does not impose any specific restrictions on the fixing method of the upper cover.

[0090] In summary, the present invention provides a stacked battery system with excellent structural adaptability. This design allows for flexible adjustment of the number of frames based on the specific needs of the system to accommodate different vehicle models and space requirements, ensuring wide applicability. The hierarchical frame design simplifies transport and assembly positioning, improving assembly efficiency and reducing operational difficulty. Furthermore, the hierarchical frame structure facilitates disassembly and replacement, significantly reducing maintenance and repair time and costs. Therefore, the present invention effectively overcomes the various shortcomings of the prior art and possesses high industrial value.

[0091] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed in the present invention are intended to be covered by the claims of the present invention.

Claims

1. A stacked battery system, characterized in that: include: underlying framework; Several mid-level frameworks; The middle frames are stacked on the bottom frame in sequence from the bottom to the top; Top-level framework; The top frame is stacked on the uppermost middle frame among the plurality of middle frames; Among them, the bottom frame includes a base and a fence, and the fence is vertically installed on the base; the base includes a plurality of edge support beams forming a preset shape, and a plurality of spaced and parallel first intermediate support beams are fixedly provided between two oppositely arranged edge support beams along a first direction, and a plurality of spaced and parallel second intermediate support beams are fixedly provided between two adjacent first intermediate support beams along a second direction perpendicular to the first direction; a number of mounting blocks for assembly with the entire vehicle are fixedly provided between the first intermediate support beam closest to the edge and the adjacent edge support beam.

2. The stacked battery system according to claim 1, wherein: The fence of the bottom frame includes an open surface, and the remaining surfaces include multiple parallel columns arranged on corresponding edge support beams. The top end of each column is fixedly connected to the fence top beam, and the bottom end is fixedly connected to the corresponding edge support beam.

3. The stacked battery system according to claim 2, wherein: Among the plurality of upright posts on the side facing the opening in the fence, the upright post located in the middle is provided with a reinforcement structure.

4. The stacked battery system according to claim 2, wherein: In the stacked battery system, a plurality of first positioning portions are provided on the top of the lower frame, and a corresponding number of second positioning portions are provided at corresponding positions on the bottom of the upper frame stacked on the lower frame. The upper frame is assembled onto the lower frame by positioning the first positioning portions and the second positioning portions relative to each other.

5. The stacked battery system according to claim 4, characterized in that: The first positioning portion and the second positioning portion are one and the other of the guide positioning pin and the guide positioning hole; the lower frame and the upper frame that are positioned with each other include the bottom frame and the bottom middle frame, the middle frames and middle frames stacked up and down, and the top middle frame and the top frame.

6. The stacked battery system according to claim 1, wherein: Each of the second intermediate support beams is staggered with other second intermediate support beams adjacent to it in the first direction so as to be not collinear.

7. The stacked battery system according to claim 1, wherein: The inner surface of the base that contacts the battery is paved with a bearing plate.

8. The stacked battery system according to claim 1, wherein: The base thickness of the bottom frame is greater than the base thickness of the middle frame and the top frame.

9. The stacked battery system according to claim 1, wherein: The top frame is provided with top support beams on two opposite sides, and the top support beams are integrated with a plurality of hoisting parts for hoisting the entire system; wherein the thickness of the top support beams is at least 4 mm.

10. The stacked battery system according to claim 1, wherein: The stacked battery system further includes an upper cover plate; the upper cover plate is covered and fixed on the top frame.

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