Modular, snap-together battery module support

Abstract

The application discloses a modular splicing type battery module support, which comprises mutually buckled upper and lower shells, and opposite sides of the upper and lower shells are provided with accommodating grooves; the accommodating grooves of the upper and lower shells are surrounded to form an accommodating cavity for accommodating a plurality of battery cells, and the upper and lower shells are detachably connected; a transverse dismounting assembly is jointly arranged on the first side surfaces of the upper and lower shells, and the transverse dismounting assembly is used for realizing detachable connection of the upper and lower shells in a transversely parallel arrangement state; the modular splicing type battery module support is quickly bidirectionally spliced without fasteners through the cooperation of the transverse dismounting assembly and the longitudinal dismounting assembly, can be flexibly assembled into 24V and 48V specifications based on a 12V basic support, does not need to be separately developed into a mold, and greatly improves assembly efficiency and specification adjustment flexibility and reduces production manufacturing cost.

Description

Technical Field

[0001] This application relates to the field of energy storage battery technology, and in particular to a modular splicing battery module bracket. Background Technology

[0002] With the rapid development of new energy technologies, battery modules, as core components of energy storage and power systems, are finding increasingly wider applications. Different applications demand diverse voltage specifications from battery modules; for example, battery modules with different voltage levels such as 12V, 24V, and 48V are widely used in automobiles, energy storage power stations, and portable electronic devices. As the core structure supporting and protecting the battery cells, the battery module bracket's adaptability, assembly efficiency, and manufacturing cost directly affect the overall performance and market competitiveness of the battery module.

[0003] In existing technologies, battery module brackets are mostly integrated structures designed for specific voltage specifications, meaning that one type of bracket can only accommodate battery modules of a single voltage specification. To meet different voltage requirements, companies need to develop bracket molds for corresponding specifications separately. This not only results in high costs for mold development, manufacturing, and maintenance but also requires a significant amount of storage space to store finished brackets of different specifications, leading to low utilization of production resources. Furthermore, the integrated bracket structure requires disassembly for installation, replacement, and repair during later maintenance, making the process cumbersome and significantly reducing assembly and maintenance efficiency. Summary of the Invention

[0004] The purpose of this application is to propose a modular splicing battery module bracket to solve the problems that existing battery module brackets are mostly integrated structures adapted to a single voltage specification, which have high costs and low production resource utilization due to the need to develop bracket molds for the corresponding specifications, and low assembly and maintenance efficiency due to the need to disassemble the whole structure during later maintenance.

[0005] To achieve this objective, the following technical solution is adopted in this application:

[0006] A modular splicing battery module bracket includes an upper shell and a lower shell that can be interlocked, and the upper shell and the lower shell each have receiving grooves on opposite sides;

[0007] The receiving groove of the upper housing and the receiving groove of the lower housing together form a receiving cavity for accommodating multiple battery cells, and the upper housing and the lower housing are detachably connected.

[0008] The upper housing and the lower housing are jointly equipped with a lateral disassembly assembly on their first side. The lateral disassembly assembly is used to enable the detachable connection between the upper housing and the lower housing when they are arranged in a lateral parallel manner.

[0009] The upper housing and the lower housing are jointly equipped with a longitudinal disassembly assembly on their second side. The second side is adjacent to the first side. The longitudinal disassembly assembly is used to enable the detachable connection between the upper housing and the lower housing when they are arranged longitudinally side by side.

[0010] Optionally, the lateral disassembly assembly includes a slide groove, a slider, and a limiting part; the slide groove is disposed on the first side of the upper housing, the slider is disposed on the first side of the lower housing, and both the slide groove and the slider have a dovetail structure;

[0011] When the upper housing or the lower housing is flipped over and arranged horizontally side by side, the sliding groove and the slider achieve a detachable connection between the upper housing and the lower housing through sliding engagement.

[0012] The limiting part is disposed in the slide groove of the upper housing. The limiting part is located at one end of the slide groove away from the receiving groove opening of the upper housing. The limiting part is used to limit the sliding path of the slider on the lower housing, so that the slider can only slide into or out of the slide groove from the end of the slide groove away from the limiting part.

[0013] Optionally, the longitudinal disassembly assembly includes a connecting part, a snap-fit ​​plate, a front connecting plate, two side connecting plates, two locking parts, and a stop part; the connecting part is disposed on the second side of the upper housing, the snap-fit ​​plate is connected to the end of the connecting part away from the upper housing, and the front connecting plate is disposed on the second side of the lower housing; the two side connecting plates are disposed on both sides of the front connecting plate, and the two locking parts are respectively disposed on the opposite side of each of the two side connecting plates, the front connecting plate, the two side connecting plates, and the two locking parts together form a snap-fit ​​channel for the snap-fit ​​plate to slide in or out; the locking parts are used to prevent the snap-fit ​​plate that has slid into the snap-fit ​​channel from disengaging from the snap-fit ​​channel in the direction perpendicular to the second side; the stop part is disposed on the second side of the upper housing, and the stop part is located at the end away from the receiving groove opening of the upper housing, and the stop part is used to limit the snap-fit ​​plate to slide in or out only from the end of the snap-fit ​​channel away from the receiving groove opening of the lower housing.

[0014] Optionally, the snap-fit ​​plate is widened along the direction in which it slides into the snap-fit ​​channel.

[0015] Optionally, the bottom wall of the receiving groove is provided with multiple positioning openings, which are arranged in a rectangular array. The upper shell and the lower shell are each provided with multiple anti-detachment parts on the side opposite to the opening of the receiving groove, and each positioning opening corresponds to at least one anti-detachment part. One end of each anti-detachment part extends toward the center position of the corresponding positioning opening. The multiple anti-detachment parts form clearance spaces in both the horizontal and vertical directions relative to the multiple positioning openings arranged in the rectangular array. The horizontal and vertical directions correspond to the center line connecting adjacent positioning openings in the horizontal direction and the center line connecting adjacent positioning openings in the vertical direction, respectively.

[0016] Optionally, the upper housing and the lower housing are respectively provided with positioning holes and positioning posts on opposite sides, and the positioning holes and positioning posts are mutually matched.

[0017] Optionally, the modular splicing battery module bracket includes four upper housings and four lower housings;

[0018] Two of the upper housings and two of the lower housings are connected by two lateral disassembly and assembly components and two longitudinal disassembly and assembly components to form a large bottom housing assembly; the other two upper housings and two of the lower housings are connected by two lateral disassembly and assembly components and two longitudinal disassembly and assembly components to form a large top housing assembly; the large bottom housing assembly and the large top housing assembly are detachably connected to form a large complete housing assembly.

[0019] Optionally, each of the upper housings and each of the lower housings may be detachably provided with a front cover plate on the side opposite to the corresponding receiving groove opening, and side cover plates are provided on both sides of the large housing assembly.

[0020] Optionally, threaded posts and buckles are provided at intervals on the side of the upper housing and the lower housing opposite to the first side to fix the circuit board, and a notch corresponding to the circuit board is provided on the side cover plate to connect the circuit board to the external circuit.

[0021] Optionally, both ends of the upper housing and the lower housing opposite to the opening of the receiving groove are provided with at least one internal threaded hole, and the front cover plate is provided with at least two pre-cut plates, the positions of the pre-cut plates and the internal threaded holes are one-to-one.

[0022] Compared to existing technologies, the beneficial effects of this application are:

[0023] 1. Through the coordinated operation of horizontal and vertical assembly components, fast and bidirectional splicing without fasteners can be achieved. It can be flexibly assembled into 24V and 48V specifications based on a 12V base bracket without the need for separate mold development, which greatly improves assembly efficiency and specification adjustment flexibility, and reduces production and manufacturing costs.

[0024] 2. The horizontal components adopt a dovetail structure sliding block and limit part for guidance and positioning, and the vertical components cooperate with the stop part through the U-shaped snap-fit ​​channel. They can be quickly leveled without additional tools. The diagonal layout forms a cross constraint, which further strengthens the rigidity of the large-size bracket splicing and avoids loosening and displacement.

[0025] 3. The rectangular array positioning ports on the bottom wall of the receiving tank are adapted to the battery cells, and together with the anti-detachment part, they achieve all-round limiting and anti-shaking. The gap between the positioning port and the anti-detachment part forms a heat dissipation channel, which improves the stability and life of the battery cell operation.

[0026] 4. The upper and lower housings are detachable, and both the horizontal and vertical disassembly components are push-pull type, requiring no special tools. The clearance space formed by the anti-detachment part facilitates nickel strip connection. The pre-cut plate and internal threaded hole design can selectively achieve electrode connection without removing the cover plate, simplifying operation. Attached Figure Description

[0027] The accompanying drawings further illustrate this application, but the content of the drawings does not constitute any limitation on this application.

[0028] Figure 1 This is a schematic diagram of the upper and lower shells of this application in a state of being ready to be fastened together;

[0029] Figure 2 This is a structural schematic diagram of the upper and lower shells of this application in a snap-fit ​​state, wherein A in the figure is the horizontal flipping axis and B is the vertical flipping axis;

[0030] Figure 3 This is a schematic diagram of the upper and lower shells of this application, in which the upper shell flips about a horizontal axis. In the diagram, A is the horizontal axis and B is the vertical axis.

[0031] Figure 4 This is a schematic diagram of the structure of the upper and lower shells of this application, which are assembled into a middle shell assembly by a horizontal disassembly and assembly component;

[0032] Figure 5 This is a schematic diagram of the top shell assembly and the middle and bottom shell assembly in the state of being ready to be fastened in this application;

[0033] Figure 6 This is a schematic diagram of the overall housing assembly in this application with the battery module installed.

[0034] Figure 7 This is a schematic diagram of the structure of the upper shell and the lower shell of this application, in which the upper shell flips about the vertical flip axis. In the figure, A is the horizontal flip axis and B is the vertical flip axis.

[0035] Figure 8 This is a schematic diagram of the structure of the upper and lower shells of this application assembled together by longitudinal disassembly and assembly components;

[0036] Figure 9 This is a structural schematic diagram of the top shell assembly and the bottom shell assembly of this application in a state of being ready to be fastened together;

[0037] Figure 10 This is a schematic diagram of the overall housing assembly of this application in the state of having the battery module installed;

[0038] Figure 11 This is a schematic diagram of the operation direction for removing the lower shell of the first row on the right and the upper shell of the second row on the right in the bottom shell assembly of this application, wherein the arrows in the diagram represent the removal direction;

[0039] Figure 12 This is a schematic diagram of the operation direction for removing the lower shell of the first row on the right side in the bottom shell assembly of this application. The arrow in the diagram represents the removal direction.

[0040] Figure 13 This is a schematic diagram of the operation direction for removing the upper shell of the first row on the left side in the bottom shell assembly of this application. The arrow in the diagram represents the removal direction.

[0041] Figure 14 This is a schematic diagram illustrating the operational direction for removing the upper and lower shells of the first row in the bottom shell assembly of this application. The arrows in the diagram represent the removal direction. Figure 12 and Figure 13 The combination of the two directions corresponds to the directions shown in each diagram;

[0042] Figure 15 This is a structural diagram of the large housing assembly of this application with the circuit board installed. In this diagram, a certain front cover plate and the large housing assembly are separated for the purpose of connection only and do not represent the actual situation.

[0043] Figure 16 This is a structural schematic diagram of the main body assembly of this application with the side cover plate and the front cover plate installed.

[0044] In the attached diagram: 1. Upper housing; 101. Positioning hole; 2. Lower housing; 201. Positioning post; 3. Receiving cavity; 31. Receiving groove; 311. Positioning opening; 41. First side surface; 42. Second side surface; 5. Lateral disassembly assembly; 51. Slide groove; 52. Slider; 53. Limiting part; 6. Longitudinal disassembly assembly; 61. Connecting part; 62. Fastening plate; 63. Front connecting plate; 64. Side connecting plate; 65. Locking part; 66. Stop part; 67. Snap-fit ​​channel; 7. Anti-detachment 71. Clearance space; 8. Large shell assembly; 81. Large top shell assembly; 82. Large bottom shell assembly; 83. Small shell assembly; 84. Medium shell assembly; 841. Medium top shell assembly; 842. Medium bottom shell assembly; 9. Front cover plate; 91. Pre-cut plate; 10. Side cover plate; 1001. Notch; 1002. Side plate hole; 11. Threaded post; 12. Snap fastener; 13. Internal threaded hole; 14. Connecting sleeve; 15. Connecting groove; 16. Seam plate; 161. Through hole. Detailed Implementation

[0045] The embodiments of this application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc., indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, and "several" means one or more, unless otherwise expressly and specifically defined.

[0046] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0047] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0048] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0049] In this embodiment, by Figures 1-16 A modular splicing battery module bracket is provided, comprising an upper housing 1 and a lower housing 2 that can be interlocked, providing a basic support structure for housing battery cells.

[0050] refer to Figures 1-2As shown, specifically, the upper housing 1 and the lower housing 2 are provided with receiving grooves 31 on their opposite sides. When the upper housing 1 and the lower housing 2 are fastened together, the two opposite receiving grooves 31 can jointly enclose a complete receiving cavity 3. The size and shape of the receiving cavity 3 are matched to stably accommodate multiple battery cells, ensuring the positional stability of the battery cells during use. At the same time, in order to take into account the convenience of battery cell assembly in the early stage and the operability of later maintenance, the upper housing 1 and the lower housing 2 are detachably connected, for example, by the cooperation of screws and nuts. The upper housing 1 and the lower housing 2 can be separated and assembled by disassembling the fasteners, which facilitates the installation, replacement and maintenance of battery cells.

[0051] To meet the usage requirements of battery modules with different voltage specifications and to achieve flexible assembly and matching of the bracket, this modular splicing battery module bracket has added a special disassembly and assembly structure on specific sides of the upper shell 1 and the lower shell 2, which is specifically divided into a horizontal disassembly and assembly component 5 and a vertical disassembly and assembly component 6.

[0052] A lateral disassembly assembly 5 is installed on the first side 41 of both the upper housing 1 and the lower housing 2. The first side 41, as defined here, specifically refers to the outer side of the long side of the frame of either the upper housing 1 or the lower housing 2. Both the upper housing 1 and the lower housing 2 have four side frames and a bottom frame, which together form a receiving groove 31. The core function of this lateral disassembly assembly 5 is to enable the lateral side-by-side splicing of the upper housing 1 and the lower housing 2. When lateral splicing is required, the upper housing 1 or the lower housing 2 can be flipped, for example, by using the edge of the upper housing 1 around the lower housing 2 as the lateral flipping axis (the lateral flipping axis is...). Figures 2-3 Flip the dotted line A) so that the upper shell 1 and lower shell 2 are arranged side by side in a horizontal position. At this time, no additional fasteners are needed. The detachable connection of the upper shell 1 and lower shell 2 can be quickly completed by using the horizontal disassembly and assembly component 5. The horizontal splicing operation process is as follows: Figures 2-4 As shown.

[0053] The longitudinal disassembly assembly 6 is installed on the second side 42 of both the upper housing 1 and the lower housing 2, which are adjacent to the first side side 41. The core function of this longitudinal disassembly assembly 6 is to enable the longitudinal side-by-side splicing of the upper housing 1 and the lower housing 2. During splicing, either the upper housing 1 or the lower housing 2 can be flipped, for example, by using the edge of the upper housing 1 around the lower housing 2 as the vertical flipping axis (the vertical flipping axis is...). Figure 2 and Figure 7 The dotted line B) is flipped. It should be noted that the vertical flipping axis here is perpendicular to the horizontal flipping axis used for horizontal splicing. When the upper shell 1 and lower shell 2 are arranged longitudinally side-by-side after flipping, the detachable connection between the upper shell 1 and lower shell 2 can be directly completed through the longitudinal disassembly assembly 6, again without the need for additional fasteners. The longitudinal splicing operation process is as follows: Figure 2 , Figure 7 as well as Figure 8As shown.

[0054] In summary, the coordinated operation of the horizontal assembly / disassembly component 5 and the vertical assembly / disassembly component 6 enables the battery module bracket to have the core capability of bidirectional splicing in both the horizontal and vertical directions, providing a structural foundation for multi-specification voltage adaptation.

[0055] Based on the above bidirectional splicing structure, by reasonably combining the upper shell 1 and the lower shell 2, and with the connecting effect of the horizontal disassembly component 5 and the vertical disassembly component 6, a battery module bracket that adapts to different voltage specifications such as 12V, 24V and 48V can be flexibly assembled. The specific assembly operation process is as follows:

[0056] First, reference Figures 1-2 As shown, when a 12V battery module bracket needs to be assembled, no splicing operation is required. Simply align an upper housing 1 and a lower housing 2 and interlock them to form a complete small housing assembly 83. At this time, the receiving slots 31 of the upper housing 1 and the lower housing 2 align and together form an independent receiving cavity 3. This cavity 3 can stably accommodate the number of battery cells matching the 12V voltage requirement, thus obtaining a bracket structure suitable for 12V battery modules.

[0057] Second, reference Figures 5-6 As shown, when a 24V battery module bracket needs to be assembled, the upper housing 1 and the lower housing 2 need to be horizontally spliced ​​using the horizontal disassembly assembly 5. Specifically, the openings of the receiving slots 31 in both the upper housing 1 and the lower housing 2 face the same direction, and the upper housing 1 and the lower housing 2 are placed horizontally side by side. Then, the upper housing 1 and the lower housing 2 are combined together using the horizontal disassembly assembly 5 to obtain a middle housing group. This process is repeated to obtain two middle housing groups, defined as the bottom middle housing group 842 and the top middle housing group 841, respectively. Finally, the bottom middle housing group 842 and the top middle housing group 841 are fastened together and detachably connected using fasteners to obtain a complete middle housing group 84. After fastening, the two receiving slots 31 of each of the bottom middle housing group 842 and the top middle housing group 841 correspond and connect with each other, forming two independent receiving cavities 3, which can stably accommodate the number of battery cells required for 24V voltage, thus obtaining a bracket adapted to a 24V battery module.

[0058] Third, refer to Figures 9-10As shown, when assembling a 48V battery module bracket, the 48V bracket assembly requires four upper housings 1 and four lower housings 2, which are assembled through the cooperation of horizontal disassembly components 5 and vertical disassembly components 6. The specific process is as follows: First, take two upper housings 1 and two lower housings 2, and place housings of the same type diagonally opposite each other. For example, place two upper housings 1 and two lower housings 2 on the ground. In the first row, there is an upper housing 1 on the left and a lower housing 2 on the right. In the second row, there is a lower housing 2 on the left and an upper housing 1 on the right. At this time, the horizontal disassembly components 5 and vertical disassembly components 6 on adjacent upper housings 1 and lower housings 2 are in a position and state that can be cooperated. Therefore, by assembling two horizontal disassembly components 5 and two vertical disassembly components 6, a large housing group can be obtained. Repeat the above operation to obtain two large housing groups, which are defined as the large bottom housing group 82 and the large top housing group 81, respectively. Figure 9 As shown. Then, the bottom shell assembly 82 and the top shell assembly 81 are detachably aligned and fastened together to form a complete large shell assembly 8, as shown. Figure 10 As shown. The bottom housing assembly 82 and the top housing assembly 81 each have four receiving slots 31. When the two are fastened together, they form four independent receiving cavities 3, which can stably accommodate the number of battery cells that meet the 48V voltage requirement, and finally obtain the bracket structure of the large housing assembly 8 that is adapted to the 48V battery module.

[0059] In summary, the modular splicing battery module bracket has the following advantages: First, it achieves a flexible and rapid splicing effect. With the synergistic effect of the horizontal disassembly component 5 and the vertical disassembly component 6, it can quickly complete the combination of brackets of different specifications such as 12V, 24V, and 48V according to actual voltage requirements, which greatly improves the production assembly efficiency and the flexibility of subsequent specification adjustments. Second, it simplifies the connection structure. The connection function of the horizontal disassembly component 5 and the vertical disassembly component 6 replaces the traditional screw fixing method between adjacent shells. This not only reduces the number of fasteners such as bolts and nuts used, reducing material costs, but also avoids the cumbersome operation in the screw disassembly process, further improving the ease of disassembly and assembly. Third, it reduces the production and manufacturing costs. Based on the 12V specification basic bracket (small shell group 83), the requirements of 24V and 48V specification brackets (medium shell group 84 and large shell group 8) can be directly realized by splicing. There is no need to develop special bracket molds for 24V and 48V specifications separately, which greatly saves the cost of mold development, manufacturing and subsequent maintenance. At the same time, it also reduces the storage space occupied by different specification molds and improves the utilization rate of production resources.

[0060] After the upper shell 1 and lower shell 2 are assembled using the lateral disassembly assembly 5, a middle shell assembly is formed. By repeating the same assembly process, two middle shell assemblies can be obtained, namely the middle bottom shell assembly 842 and the middle top shell assembly 841. These two middle shell assemblies are further spliced ​​and combined to finally form a complete middle shell assembly 84. However, during the assembly of the upper shell 1 and lower shell 2, if one side of the upper shell 1 and the lower shell 2 is higher than the other side, specifically the side with the opening of the receiving groove 31 or the side away from the opening of the receiving groove 31, it will directly lead to insufficient structural precision of the final assembled complete middle shell assembly 84. This will cause a slight deviation in the actual length of the receiving cavity 3 formed inside, resulting in the problem of shaking when the battery cell is placed in the receiving cavity 3.

[0061] refer to Figures 1-4 As shown, based on the above-mentioned problems, the lateral assembly / disassembly component 5, while ensuring the core function of achieving stable assembly of the upper shell 1 and lower shell 2 without fasteners, also considers controlling manufacturing costs, improving ease of use, and solving the problem of alignment during the splicing process of the upper shell 1 and lower shell 2. In this embodiment, the lateral assembly / disassembly component 5 specifically includes a sliding groove 51, a slider 52, and a limiting part 53. Furthermore, to ensure the balance and stability of the splicing, at least two of each of the sliding groove 51, slider 52, and limiting part 53 are provided, with each component corresponding to and cooperating with the others. The slide groove 51 is correspondingly disposed on the first side 41 of the upper housing 1, and at least two slide grooves 51 are spaced apart along the first side 41. The slider 52 is correspondingly disposed on the first side 41 of the lower housing 2, and the number and position of the slider 52 and the slide groove 51 are matched one by one. At the same time, both the slide groove 51 and the slider 52 adopt a dovetail structure. The shape of the dovetail structure fits the assembly guidance requirements. At the same time, it also makes the slide groove 51 and the slider 52 unable to be separated when they are engaged. The engagement state can only be released by sliding the slider 52 out of the slide groove 51, thus achieving the effect of solving complex problems with a simple structure.

[0062] During assembly, with the upper housing 1 or lower housing 2 flipped over and arranged horizontally side by side, the sliders 52 on the lower housing 2 are aligned with the inlets of the grooves 51 on the upper housing 1 and pushed in synchronously along the extension direction of the grooves 51 to complete the initial alignment and splicing. At the same time, since the limiting part 53 is set in the groove 51 of the upper housing 1, the limiting part 53 is located at the end of the groove 51 away from the opening of the receiving groove 31 of the upper housing 1. The limiting part 53 is used to limit the sliding path of the sliders 52 on the lower housing 2, so that the sliders 52 can only slide into or out of the groove 51 from the end of the groove 51 away from the limiting part 53. At the same time, each limiting part 53 can also limit and block the end of the stroke of the corresponding sliders 52, and the position where the sliders 52 and the limiting part 53 abut against each other is also the position where the upper housing 1 and the lower housing 2 are aligned, so as to achieve the effect of aligning the upper housing 1 and the lower housing 2.

[0063] In summary, the advantages of using the horizontally disassembled component 5 are as follows: First, it improves the ease of leveling and the stability of splicing. The dovetail structure of the slide groove 51 and the slider 52 has a stronger guiding and positioning function, which can more accurately prevent the slider 52 and the slide groove 51 from shifting or misaligning during assembly. At the same time, the limiting part 53 can serve as a leveling benchmark, and the leveling and alignment of the upper shell 1 and the lower shell 2 can be quickly completed without the need for additional positioning tools. Second, it reduces manufacturing costs. The dovetail structure of the slide groove 51 and the slider 52 can be injection molded or integrally processed with the shell body at the same time, without the need for additional complex processing steps. Only the positions of each component need to be planned at the same time during the mold design stage, and no additional parts are required, which simplifies the production process and controls material and processing costs. Third, it enhances connection stability and ease of use. The wide end of the dovetail structure effectively prevents the slider 52 from disengaging from the groove 51. With the synchronous limiting of the limiting part 53, the disassembly and assembly process can be completed simply by pushing and pulling the upper housing 1 or the lower housing 2 synchronously along the guide direction. The operation is simple and labor-saving, requiring no professional tools, which further improves the convenience of later maintenance and replacement.

[0064] In addition, refer to Figure 1 As shown, to prevent the slider 52 from easily detaching from the slide groove 51, the end of the slide groove 51 near the limiting part 53 is narrowed. This narrowing refers to a gradient reduction in the width of the groove opening at the end of the slide groove 51 near the limiting part 53, making the width of this end slightly smaller than the main body width of the slider 52. When the slider 52 slides along the slide groove 51 to the narrowed area near the limiting part 53, the narrowed opening provides a slight locking and limiting effect on the slider 52. This not only does not hinder the movement of the slider 52 within its normal sliding stroke but also effectively prevents the slider 52 from easily detaching from the slide groove 51 due to accidental shaking or uneven force. Combined with the physical blocking function of the limiting part 53, this allows the narrowed area of ​​the slide groove 51 to quickly align with the slider 52.

[0065] refer to Figure 1 , Figure 2 , Figure 7 as well as Figure 8As shown, battery modules typically have a cuboid structure with defined length and width dimensions. The first side 41 of the horizontal assembly component 5 corresponds to the length direction of the battery module, where the contact area between the housing 1 and the lower housing 2 is relatively large, naturally resulting in better structural stability. The second side 42 of the vertical assembly component 6 corresponds to the width direction of the battery module, where the contact area between the housing 1 and the lower housing 2 is relatively small. If a conventional splicing structure is used, unstable connection problems are likely to occur. At the same time, in addition to ensuring the core requirement of stable assembly of the upper housing 1 and the lower housing 2 without fasteners, it is also necessary to consider the control of manufacturing costs, the improvement of ease of use, and the solution of the alignment problem during the housing splicing process. Therefore, the vertical assembly component 6 structure, which combines surface contact and limiting functions, was specifically designed.

[0066] Specifically, the longitudinal disassembly assembly 6 includes a connecting part 61, a snap-fit ​​plate 62, a front connecting plate 63, two side connecting plates 64, two locking parts 65, and a stop part 66.

[0067] The connecting part 61 is integrally formed on the second side 42 of the upper shell 1, and mainly serves to support and connect the fastening plate 62. The fastening plate 62 is fixedly connected to the end of the connecting part 61 away from the upper shell 1. The size of the fastening plate 62 is adapted to the subsequent snap-fit ​​channel 67 to ensure the surface contact effect. The positive connecting plate 63 is integrally formed on the second side 42 of the lower shell 2, and serves as the core bearing structure for surface contact.

[0068] Two side plates 64 are disposed on both sides of the front plate 63, and the distance between the two side plates 64 matches the width of the snap-fit ​​plate 62. Two locking parts 65 are integrally formed on the opposite side of each of the two side plates 64. The front plate 63, the two side plates 64 and the two locking parts 65 together form a U-shaped snap-fit ​​channel 67. The inner wall of the snap-fit ​​channel 67 fits against the outer surface of the snap-fit ​​plate 62, allowing the snap-fit ​​plate 62 to slide smoothly into or out along the extension direction of the snap-fit ​​channel 67, thus achieving surface contact splicing.

[0069] Meanwhile, the locking part 65 is protruding. When the fastening plate 62 is fully slid into the snap-fit ​​channel 67, the two locking parts 65 can limit the fastening plate 62 from both sides, effectively preventing the fastening plate 62 from detaching from the snap-fit ​​channel 67 from the direction perpendicular to the second side 42 after it has slid in, and further enhancing the connection stability.

[0070] The stop part 66 is integrally formed on the second side 42 of the upper housing 1, and the stop part 66 is located at the end away from the opening of the receiving groove 31 of the upper housing 1. The stop part 66 also blocks the end of the snap-fit ​​channel 67 away from the opening of the receiving groove 31. When the snap-fit ​​plate 62 slides away from the opening of the receiving groove 31, the stop part 66 can abut against the end of the side plate 64, thereby limiting the snap-fit ​​plate 62 to slide in or out only from the end of the snap-fit ​​channel 67 away from the opening of the receiving groove 31 of the lower housing 2, avoiding directional misalignment during assembly. At the same time, the position where the stop part 66 abuts against the side plate 64 is also the position where the upper housing 1 and the lower housing 2 are aligned, which can also achieve the effect of leveling the upper housing 1 and the lower housing 2.

[0071] In summary, the advantages of using the longitudinally disassembled assembly 6 are as follows: First, it improves the stability of the splicing of the upper shell 1 and the lower shell 2 in the width direction. The surface contact between the positive connecting plate 63 and the snap-fit ​​plate 62 compensates for the small contact area of ​​the second side 42. At the same time, the joint limiting of the two side connecting plates 64 and the locking part 65 effectively prevents the snap-fit ​​plate 62 from laterally disengaging, greatly enhancing the structural stability and connection reliability after longitudinal splicing. Second, it improves the splicing alignment accuracy and assembly efficiency. The U-shaped snap-fit ​​channel 67 has a natural guiding function. Combined with the directional limitation of the stop part 66, the snap-fit ​​plate 62 can only slide into the snap-fit ​​channel 67 in a fixed direction. The upper shell 1 and the lower shell 2 can be quickly aligned and leveled without the need for additional positioning tools, significantly improving assembly efficiency. Third, it controls manufacturing costs and simplifies the processing flow. Each component can be injection molded simultaneously with the upper shell 1 or the lower shell 2, without the need for additional complex processing steps and parts, reducing material and processing costs. At the same time, the elimination of fasteners further reduces assembly material consumption. Fourth, it improves the ease of use and maintenance. During the disassembly and assembly process, you only need to push or pull the upper housing 1 or the lower housing 2 along the snap-fit ​​channel 67 to complete the sliding in and out of the snap-fit ​​plate 62. The operation is simple and labor-saving, and no professional tools are required. Whether it is the initial assembly or the later maintenance or replacement of the upper housing 1 or the lower housing 2, the ease of operation can be greatly improved.

[0072] Meanwhile, since the assembly of the bottom shell assembly 82 or the top shell assembly 81 requires two upper shells 1 and two lower shells 2, and the same type of shells are placed diagonally, the core reason is that the assembly of these two types of bottom shell assemblies 82 and top shell assemblies 81 depends on the joint assembly of the transverse disassembly assembly component 5 and the longitudinal disassembly assembly component 6. However, since each component can only connect adjacent upper shells 1 and lower shells 2 in a one-way snap-fit ​​manner, only by having the same type of shells distributed diagonally (the shells referred to here are either upper shells 1 or lower shells 2; for ease of understanding, the shells mentioned later refer to either upper shells 1 or lower shells 2) can the various parts of the transverse disassembly assembly component 5 and the longitudinal disassembly assembly component 6 on adjacent upper shells 1 and lower shells 2 be aligned and in a compatible position and state.

[0073] Simply put, on the assembly plane, if the upper left side is the upper shell 1, then the upper right side must be the lower shell 2, the lower left side is the lower shell 2, and the lower right side is the upper shell 1. This diagonal arrangement allows the first side 41 and the second side 42 of adjacent shells to fit precisely together. Figure 9 As shown in the bottom shell assembly 82, this allows the sliding groove 51 of the transverse disassembly assembly 5 and the slider 52, and the snap-fit ​​plate 62 of the longitudinal disassembly assembly 6 and the snap-fit ​​channel 67 to form an effective alignment, providing a positional basis for subsequent assembly. Conversely, if the same type of shell is not placed diagonally, the disassembly assemblies of adjacent shells will be misaligned, making stable splicing impossible. Therefore, diagonal placement is a necessary prerequisite for ensuring the smooth assembly of the bottom shell assembly 82 or the top shell assembly 81.

[0074] Based on the aforementioned layout requirements, the structures of the two transverse disassembly components 5 are diagonally distributed along with the shell. Correspondingly, the structures of the two longitudinal disassembly components 6 are also diagonally distributed. This distribution directly determines the disassembly logic of the shell: the upper shell 1 and lower shell 2, adjacent on the same side, form cross constraints with their respective diagonally distributed transverse disassembly components 5 and longitudinal disassembly components 6, respectively. (Referring to...) Figures 11-14 For any given sheet, the upper shell 1 on the left side of the first row is designated A, the lower shell 2 on the right side of the first row is designated B, the lower shell 2 on the left side of the second row is designated C, and the upper shell 1 on the right side of the second row is designated D. The specific constraints are as follows:

[0075] Scenario 1: Reference Figure 11 As shown, the upper housing 1 and lower housing 2 of the first and second rows are respectively equipped with a sliding groove 51 and a slider 52. The upper housing 1 and lower housing 2 of the same row are connected together by the sliding groove 51 and the slider 52. The upper housing 1 and lower housing 2 of the first row and the upper housing 1 and lower housing 2 of the second row are connected by a longitudinal disassembly and assembly assembly 6. If we try to remove the lower housing 2 on the right side of the first row and the upper housing 1 on the right side of the second row at the same time, theoretically the slider 52 of the lower housing 2 on the right side of the first row can disengage from the sliding groove 51 of the upper housing 1 on the left side of the first row. However, the limiting part 53 in the sliding groove 51 of the upper housing 1 on the right side of the second row will be limited by the slider 52 of the lower housing 2 on the left side of the second row. In the end, the lower housing 2 on the right side of the first row and the upper housing 1 on the right side of the second row cannot be removed synchronously in the same direction. The same applies to the upper housing 1 on the left side of the first row and the lower housing 2 on the left side of the second row.

[0076] Scenario 2: Reference Figures 12-14As shown, in the first row of upper housing 1 and lower housing 2, the upper housing 1 on the left side of the first row is provided with a fastening plate 62, and the lower housing 2 on the right side of the first row is provided with a locking channel 67 consisting of a front connecting plate 63, two side connecting plates 64, and two locking parts 65. If an attempt is made to remove the upper housing 1 and lower housing 2 of the first row simultaneously, theoretically the fastening plate 62 of the upper housing 1 on the left side of the first row can disengage from the locking channel 67 of the lower housing 2 on the left side of the second row. However, the two side connecting plates 64 of the lower housing 2 on the right side of the first row will be limited by the stop part 66 of the upper housing 1 on the right side of the second row. As a result, the upper housing 1 on the left side of the first row and the lower housing 2 on the right side of the first row (the upper housing 1 and lower housing 2 of the first row) cannot disengage synchronously in the same direction. The same applies to the upper housing 1 and lower housing 2 of the second row, which cannot be removed simultaneously.

[0077] In summary, for reference Figure 13 and Figure 14 As shown, adjacent shells are constrained by their respective diagonally opposite shells in opposite directions, resulting in one of the adjacent shells being constrained by its own diagonally opposite shell. Therefore, it is impossible to remove the two shells (upper shell 1 and lower shell 2) on the same side at the same time, and only upper shell 1 or lower shell 2 can be removed one by one.

[0078] In summary, the combined use of the horizontal disassembly assembly 5 and the vertical disassembly assembly 6 offers the following advantages: First, it ensures the splicing stability of the bottom shell assembly 82 or the top shell assembly 81. The diagonally distributed horizontal disassembly assembly 5 and vertical disassembly assembly 6 create a cross-constraint between the two upper shells 1 and the two lower shells 2. Compared to parallel distribution constraints, this significantly improves the overall structural rigidity of the bottom shell assembly 82 or the top shell assembly 81, preventing loosening or displacement after assembly and ensuring the stability of the subsequent battery cell placement. Second, it enhances the safety and controllability of the disassembly and assembly operations. Removing the shells 2 one by one avoids the risk of structural damage or shell falling due to uneven force when removing multiple shells simultaneously, making the disassembly and assembly process more stable and controllable. This is especially suitable for precise inspection and replacement of individual shells during later maintenance.

[0079] refer to Figure 1As mentioned above, because adjacent shells are constrained by their respective diagonally opposite shells in opposite directions, one of the adjacent shells will be constrained by its own diagonally opposite shell. Therefore, it is impossible to remove the two shells (upper shell 1 and lower shell 2) on the same side simultaneously. They can only be removed one by one. At the same time, in order to avoid one of the upper shells 1 or lower shell 2 being too easy to remove, such as a shell falling off due to gravity alone when picking up the bottom shell assembly 82, and also to further enhance the connection effect and structural stability between the upper shell 1 and the lower shell 2, the snap-fit ​​plate 62 of the longitudinal disassembly assembly 6 has been specifically optimized in this embodiment. Specifically, the snap-fit ​​plate 62 expands along the direction of sliding into the snap-fit ​​channel 67. The design features a wider end, meaning the end of the fastening plate 62 furthest from the stop 66 is narrower, while the end closer to the stop 66 is wider. The size of this end of the fastening plate 62, closer to the stop 66, matches the inner wall size of the locking channel 67. As the fastening plate 62 slides into the locking channel 67 and moves inward, the widened structure creates a gradually increasing pressing and squeezing effect with the inner walls of the locking portions 65 on the main plate 63 and the two side plates 64. As the sliding stroke of the fastening plate 62 increases, this squeezing and squeezing force also increases. This results in a stable interference fit when the fastening plate 62 is fully slid into the locking channel 67 and the side plates 64 abut against the stop 66, effectively preventing the fastening plate 62 from loosening or shifting within the locking channel 67.

[0080] The widened fastening plate 62 has the following effects: First, it effectively prevents a single upper housing 1 or lower housing 2 from easily falling off. The interference fit between the widened structure of the fastening plate 62 and the snap-fit ​​channel 67 provides sufficient connection tightness, preventing the upper housing 1 and lower housing 2, which are assembled together by the longitudinal disassembly and assembly components 6, from easily disengaging due to gravity during picking, handling, or maintenance, thus improving the overall reliability of the battery module bracket. Second, it further enhances the connection stability of the longitudinal splicing. The fitting and squeezing force brought by the widened structure, combined with the positioning function of the stop part 66, forms a double constraint, which greatly improves the connection strength of the upper housing 1 and lower housing 2 in the width direction, preventing structural loosening caused by vibration, shaking, or other factors during use.

[0081] refer to Figure 1As shown, the battery cells in the battery module are mainly divided into three shapes: cylindrical, square, and pouch. Different shaped cells differ in structural form, space occupancy, and heat dissipation efficiency. In order to ensure that the cells of different shapes can be stably positioned when placed in the receiving groove 31, and to prevent the cells from shaking or shifting during the operation or transportation of the battery module, and to accelerate the dissipation of heat generated during the operation of the cells, thus ensuring the operational stability and service life of the battery module, in this embodiment, multiple positioning ports 311 are provided on the bottom wall of the receiving groove 31. The multiple positioning ports 311 are arranged in a rectangular array. The arrangement of this rectangular array is adapted to the regular arrangement requirements of cells of different shapes, and can provide support and positioning for the ends of the cells, preventing the cells from shifting laterally or longitudinally. At the same time, the shape of the positioning ports 311 can be selected as cylindrical, square, etc., to accommodate the three shapes of cylindrical, square, and pouch cells. Both the upper housing 1 and the lower housing 2 have multiple anti-detachment parts 7 on the side opposite to the opening of the corresponding receiving groove 31. Each positioning port 311 corresponds to at least one anti-detachment part 7. Typically, each positioning port 311 is matched with 3-4 anti-detachment parts 7. One end of each anti-detachment part 7 extends towards the center of the corresponding positioning port 311. The anti-detachment parts 7 on the upper housing 1 and the lower housing 2 can limit the two ends of the battery cell to prevent the battery cell from falling out of the positioning port 311. At the same time, the side wall limit of the positioning port 311 can achieve all-round fixation of the battery cell. In addition, the gap formed between the positioning port 311 and the anti-detachment part 7 can serve as a heat dissipation channel to accelerate the flow and dissipation of heat from the battery cell and provide good heat dissipation conditions for the battery cell.

[0082] In addition, refer to Figure 9 As shown, considering that the cells need to be connected in parallel or series via nickel strips, to facilitate the laying and connection of the nickel strips, multiple anti-detachment parts 7 form clearance spaces 71 in both the horizontal and vertical directions relative to the multiple positioning ports 311 arranged in a rectangular array. The horizontal and vertical directions correspond to the center lines of adjacent positioning ports 311 in the horizontal direction and the center lines of adjacent positioning ports 311 in the vertical direction, respectively. The size of the clearance space 71 is larger than or close to the width of the nickel strip, which can accommodate the series connection of cells in the same row or column using a straight nickel strip, and can also accommodate the parallel or series-parallel combination connection of multiple sets of cells using a U-shaped nickel strip. The installation of the nickel strip can be completed without additional disassembly or modification of the anti-detachment parts 7.

[0083] In summary, the effects of the positioning port 311, the anti-detachment part 7, and the clearance space 71 are as follows: First, they achieve stable positioning of the battery cell. The rectangular array arrangement of the positioning port 311 and the corresponding extension of the anti-detachment part 7 form a double constraint from the bottom and side, effectively preventing the battery cell from shaking and shifting, and improving the structural stability of the battery module. Second, they improve the heat dissipation efficiency of the battery cell. The gap between the positioning port 311 and the anti-detachment part 7 forms a natural heat dissipation channel, accelerating the dissipation of heat from the battery cell and preventing the battery cell from being affected by high temperature accumulation, thus reducing its performance and lifespan. Third, they simplify the battery cell circuit connection operation. The clearance space 71 provides ample space for the laying of I-shaped and U-shaped nickel strips, allowing for parallel or series connection of battery cells without additional structural adjustments, reducing assembly difficulty and improving production efficiency.

[0084] refer to Figure 1 As mentioned above, the upper housing 1 and the lower housing 2 are detachably connected, primarily through the use of screws and nuts. To prevent the screws from scratching the surface of the battery cell, connecting sleeves 14 are provided at the receiving grooves 31 of both the upper housing 1 and the lower housing 2. Furthermore, to achieve concealed installation of the screw head and nut, connecting grooves 15 are provided on the side of both the upper housing 1 and the lower housing 2 away from the receiving grooves 31, and each connecting groove 15 is connected to the corresponding connecting sleeve 14. When the upper housing 1 and the lower housing 2 are fastened together, the connecting sleeves 14 on both sides precisely align to form a complete connecting channel. The screw shank can penetrate this connecting channel and cover the screw shank to protect the surface of the battery cell. Simultaneously, the screw head is embedded in the connecting groove 15 on the upper housing 1, and a nut is placed in the connecting groove 15 on the lower housing 2 and threadedly connected to the end of the screw shank, thus completing the detachable fixing of the upper housing 1 and the lower housing 2 in the middle section.

[0085] refer to Figure 1 As shown, the above only achieves the detachability of the upper housing 1 and the lower housing 2 at the middle part. However, to avoid the problem of loose connection between the upper housing 1 and the lower housing 2 at the edges, which would result in the inability to fully protect the battery cells at the edges, two seam plates 16 are provided on the first side 41 of the upper housing 1 and the side opposite to the first side 41. The two seam plates 16 are located at the ends near and away from the opening of the receiving groove 31, respectively, and through holes 161 are provided on the seam plates 16. After the upper housing 1 and the lower housing 2 are fastened together, fasteners can pass through the through holes 161 on the two seam plates 16 that are close to the opening of the receiving groove 31 and fit together.

[0086] The above describes the case where an upper shell 1 and a lower shell 2 are fastened together, i.e., the small shell assembly 83. As for the middle shell assembly 84 and the large shell assembly 8, since the upper shell 1 and the lower shell 2 are combined with each other, the seam plate 16 in the middle position is blocked and cannot be connected. It is only necessary to connect the seam plates 16 that are attached to each other at the edges of the middle shell assembly 84 or the large shell assembly 8 to further achieve a reinforced connection between the edges of the upper shell 1 and the lower shell 2.

[0087] refer to Figure 15 As shown, in order to further improve the protection performance of the battery module body and the battery module bracket, and to prevent them from being damaged by external collisions, scratches and erosion by dust, moisture and other impurities during transportation, installation or use, in this embodiment, a front cover plate 9 is detachably installed on the side of each upper shell 1 and each lower shell 2 away from the opening of the corresponding receiving groove 31. The front cover plate 9 is provided with several fixing holes. The diameter and position of the fixing holes correspond one-to-one with the through holes 161 on the seam plate 16 at the end of the upper shell 1 and the lower shell 2 away from the opening of the receiving groove 31. During assembly, fasteners can be inserted through the fixing holes and the through holes 161 to achieve a stable connection between the front cover plate 9 and the upper shell 1 and the lower shell 2. At the same time, the detachable connection method also facilitates the later inspection and maintenance of the internal structure of the battery module and the bracket.

[0088] At the same time, refer to Figure 15 As shown, considering that the battery module needs a circuit board to realize functions such as charging and discharging control and voltage monitoring during operation, in order to ensure that the circuit board can be installed stably and does not interfere with the battery cell, housing cavity 3 and other structures, in this embodiment, threaded posts 11 and buckles 12 are provided at intervals on the side of the upper housing 1 and the lower housing 2 that are away from the corresponding first side 41. The threaded posts 11 can be rigidly fixed with the mounting holes on the circuit board by screws, while the buckles 12 can quickly snap and limit the edge of the circuit board and provide support. The two work together to achieve double fixation of the circuit board and ensure its positional stability in a vibration environment.

[0089] refer to Figure 15 and Figure 16As mentioned above, the 48V battery module bracket (i.e., the large housing assembly 8) is composed of four upper housings 1 and four lower housings 2 spliced ​​together. The overall structure is larger, and its matching circuit board is also longer. The front cover plate 9 alone cannot achieve comprehensive protection for the circuit board, battery module and the sides of the bracket. In order to further enhance the side protection effect of the circuit board, battery module and large housing assembly 8, in this embodiment, side cover plates 10 are provided on both sides of the large housing assembly 8. The circuit board is mainly fixed to the threaded post 11 and buckle 12 of a set of interlocking upper housings 1 and lower housings 2 inside the large housing assembly 8. The threaded post 11 on the other set of interlocking upper housings 1 and lower housings 2 is not connected to other fasteners and is in an idle state. Therefore, two side plate holes 1002 are opened on the side cover plate 10. During assembly, fasteners can be passed through the side plate holes 1002 and threadedly connected to the idle threaded post 11 to achieve threaded connection, thereby firmly installing the side cover plate 10 on both sides of the large housing assembly 8.

[0090] At the same time, refer to Figure 16 As shown, in order to facilitate the electrical connection between the circuit board and the external circuit and to avoid the circuit interface being blocked due to the installation of the side cover plate 10, in this embodiment, a notch 1001 corresponding to the position of the circuit board interface is provided on the side cover plate 10. The size of the notch 1001 is adapted to the size of the circuit board interface and the external circuit connector, which can provide sufficient operating space for the circuit connection and ensure the convenience and reliability of the circuit connection. In addition, in order to accelerate the heat dissipation inside the large housing assembly 8 and avoid the circuit board and battery cells from being affected by high temperature accumulation, a number of heat dissipation holes are also evenly provided on the side cover plate 10 to achieve rapid heat dissipation with the help of air circulation.

[0091] As mentioned above, refer to Figure 15As shown, to protect the battery module body and battery module bracket, a detachable front cover plate 9 is provided on the side of the upper housing 1 and lower housing 2 opposite to the opening of the corresponding receiving groove 31. However, considering that after the battery module is assembled, the battery assembly formed by the nickel strip connection needs to lead out electrodes and connect to the external structure, directly opening a fixed opening on the front cover plate 9 would easily lead to a decrease in protective performance. Therefore, in this embodiment, at least one internal threaded hole 13 is provided at both ends of the side of the upper housing 1 and lower housing 2 opposite to the opening of the corresponding receiving groove 31. The two ends mentioned here refer to... At the edge, at least two pre-broken plates 91 are provided on the front cover plate 9. The positions of the pre-broken plates 91 and the internal threaded holes 13 are one-to-one. The pre-broken plates 91 and the main body of the front cover plate 9 are integrally formed. The connection between the pre-broken plates 91 and the front cover plate 9 adopts a thin-walled weakened structure. The pre-broken plates 91 at the corresponding positions can be selectively broken according to the actual electrode connection requirements to expose the internal threaded holes 13 below. Electrode connectors or lead wire fixing structures can be installed through the internal threaded holes 13 to realize the connection between the battery module and the external electrodes. The unbroken pre-broken plates 91 remain intact and continue to play a protective role.

[0092] In summary, the pre-break plate 91 with internal threaded holes 13 and a thin-walled weakened structure has the following advantages: First, it balances protection performance with electrode connection requirements. When not broken, the pre-break plate 91 maintains the integrity of the front cover plate 9, ensuring protection for the battery module and bracket. When electrode connection is required, only the corresponding pre-break plate 91 needs to be selectively broken, without the need to completely disassemble the front cover plate 9 or pre-design notches 1001 at the corresponding positions, thus avoiding protection failure. Second, it improves adaptability. There are at least two pre-break plates 91 on the front cover plate 9, each corresponding to an internal threaded hole 13. The appropriate pre-break plate 91 can be broken according to the different electrode connection positions and quantities, adapting to various electrode connection scenarios without requiring separate design of the front cover plate 9 for different needs. Third, it simplifies assembly and maintenance. The pre-break plate 91 uses a thin-walled weakened design, allowing for easy breakage without specialized tools. Furthermore, the internal threaded holes 13 provide a precise installation and positioning basis for the electrode connectors, reducing the assembly difficulty of electrode connections.

[0093] refer to Figure 4As mentioned above, the 12V battery module bracket (i.e., the small housing assembly 83) is formed by interlocking an upper housing 1 and a lower housing 2. During the interlocking assembly process, housing drift and misalignment are prone to occur, which in turn affects the docking accuracy of the receiving slot 31, resulting in subsequent dimensional deviations in the receiving cavity 3 and unstable placement of the battery cells. In order to ensure that the upper housing 1 and the lower housing 2 can be accurately aligned and do not drift when interlocked, and to ensure the structural accuracy after the two are interlocked, in this embodiment, positioning holes 101 and positioning posts 201 are respectively provided on the opposite side of the upper housing 1 and the lower housing 2, and the diameter and depth of the positioning holes 101 match the outer diameter and length of the positioning posts 201. During the actual fastening operation, the operator only needs to align the positioning pin 201 on the lower housing 2 with the positioning hole 101 on the upper housing 1 and insert it to quickly achieve precise pre-positioning of the upper housing 1 and the lower housing 2, avoiding lateral or longitudinal displacement deviations during the fastening process. At the same time, the cooperation between the positioning pin 201 and the positioning hole 101 can also play a positioning role for the fastened housing, facilitating the subsequent installation of fasteners.

[0094] In summary, this modular splicing battery module bracket forms a cavity 3 by fastening the upper housing 1 and the lower housing 2 to stably accommodate the battery cells. The detachable connection facilitates disassembly and maintenance. It achieves bidirectional splicing with the help of the horizontal disassembly component 5 and the vertical disassembly component 6, flexibly adapting to 12V, 24V, and 48V specifications, improving assembly efficiency and reducing costs. The horizontal component adopts a limiting part 53 and a dovetail-structured sliding groove 51 and slider 52, while the vertical component adopts a U-shaped snap-fit ​​channel 67 and a snap-fit ​​plate 62, ensuring the splicing alignment accuracy and stability. The diagonal layout ensures large-size assembly adaptability. The positioning port 311 and the anti-detachment part 7 achieve stable cell positioning and heat dissipation, while the clearance space 71 simplifies the nickel strip connection. The pre-cut plate 91 and the internal threaded hole 13 take into account both protection and electrode connection flexibility.

[0095] In the description of this specification, the references to terms such as "embodiment," "one implementation," "some implementations," "illustrative implementation," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with the described implementation or example is included in at least one implementation or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same implementation or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more implementations or examples.

[0096] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on the explanation herein, those skilled in the art can conceive of other specific embodiments of this application without creative effort, and these equivalent variations or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A modular, splicing battery module bracket, characterized in that, It includes an upper shell (1) and a lower shell (2) that can be interlocked, and each of the upper shell (1) and the lower shell (2) has a receiving groove (31) on the opposite side. The receiving groove (31) of the upper housing (1) and the receiving groove (31) of the lower housing (2) enclose each other to form a receiving cavity (3) for accommodating multiple battery cells, and the upper housing (1) and the lower housing (2) are detachably connected. The first side (41) of the upper housing (1) and the lower housing (2) are jointly equipped with a transverse disassembly assembly (5), which is used to realize the detachable connection between the upper housing (1) and the lower housing (2) when they are arranged in a transverse parallel manner. The upper housing (1) and the lower housing (2) are jointly equipped with a longitudinal disassembly assembly (6) on their second side (42). The second side (42) is the side adjacent to the first side (41). The longitudinal disassembly assembly (6) is used to realize the detachable connection between the upper housing (1) and the lower housing (2) when they are arranged in a longitudinal parallel manner. The horizontal disassembly assembly (5) includes a slide groove (51), a slider (52), and a limiting part (53); the slide groove (51) is disposed on the first side (41) of the upper housing (1), the slider (52) is disposed on the first side (41) of the lower housing (2), and both the slide groove (51) and the slider (52) are dovetail structures; When the upper housing (1) or the lower housing (2) is flipped over and arranged in a horizontally parallel manner, the sliding groove (51) and the slider (52) achieve a detachable connection between the upper housing (1) and the lower housing (2) through sliding engagement. The limiting part (53) is disposed in the slide groove (51) of the upper housing (1). The limiting part (53) is located at one end of the slide groove (51) away from the opening of the receiving groove (31) of the upper housing (1). The limiting part (53) is used to limit the sliding path of the slider (52) on the lower housing (2), so that the slider (52) can only slide into or out of the slide groove (51) from the end of the slide groove (51) away from the limiting part (53).

2. The modular splicing battery module bracket according to claim 1, characterized in that, The longitudinal disassembly assembly (6) includes a connecting part (61), a fastening plate (62), a front connecting plate (63), two side connecting plates (64), two locking parts (65), and a stop part (66); the connecting part (61) is disposed on the second side (42) of the upper housing (1), the fastening plate (62) is connected to the end of the connecting part (61) away from the upper housing (1), and the front connecting plate (63) is disposed on the second side (42) of the lower housing (2); the two side connecting plates (64) are disposed on both sides of the front connecting plate (63), and the two locking parts (65) are respectively disposed on the opposite side of the two side connecting plates (64). (64) and the two locking parts (65) together form a snap-fit ​​channel (67) for the snap-fit ​​plate (62) to slide in or out; the locking part (65) is used to prevent the snap-fit ​​plate (62) that has slid into the snap-fit ​​channel (67) from disengaging from the snap-fit ​​channel (67) in the direction perpendicular to the second side (42); the stop part (66) is provided on the second side (42) of the upper housing (1), and the stop part (66) is located at one end away from the opening of the receiving groove (31) of the upper housing (1), and the stop part (66) is used to limit the snap-fit ​​plate (62) to slide in or out only from the end of the snap-fit ​​channel (67) away from the opening of the receiving groove (31) of the lower housing (2).

3. A modular splicing battery module bracket according to claim 2, characterized in that, The fastening plate (62) is widened along the direction of sliding into the snap-fit ​​channel (67).

4. The modular splicing battery module bracket according to claim 1, characterized in that, The bottom wall of the receiving groove (31) is provided with a plurality of positioning ports (311), which are arranged in a rectangular array. The upper shell (1) and the lower shell (2) are provided with a plurality of anti-detachment parts (7) on the side away from the opening of the corresponding receiving groove (31), and each positioning port (311) corresponds to at least one anti-detachment part (7). One end of each anti-detachment part (7) extends toward the center position of the corresponding positioning port (311). The plurality of anti-detachment parts (7) form a clearance space (71) in both the horizontal and vertical directions relative to the plurality of positioning ports (311) arranged in a rectangular array. The horizontal and vertical directions correspond to the center line connecting adjacent positioning ports (311) in the horizontal direction and the center line connecting adjacent positioning ports (311) in the vertical direction, respectively.

5. A modular splicing battery module bracket according to claim 1, characterized in that, The upper housing (1) and the lower housing (2) are respectively provided with a positioning hole (101) and a positioning post (201) on opposite sides, and the positioning hole (101) and the positioning post (201) fit together.

6. A modular splicing battery module bracket according to claim 1, characterized in that, The modular splicing battery module bracket includes four upper housings (1) and four lower housings (2). Two of the upper shells (1) and two of the lower shells (2) are connected by two lateral disassembly assemblies (5) and two longitudinal disassembly assemblies (6) to form a bottom shell assembly (82); the other two upper shells (1) and two of the lower shells (2) are connected by two lateral disassembly assemblies (5) and two longitudinal disassembly assemblies (6) to form a top shell assembly (81); the bottom shell assembly (82) and the top shell assembly (81) are detachably connected to form a large complete shell assembly (8).

7. A modular splicing battery module bracket according to claim 6, characterized in that, Each of the upper housing (1) and each of the lower housings (2) can be detachably provided with a front cover plate (9) on the side opposite to the opening of the corresponding receiving groove (31), and the large housing assembly (8) is provided with side cover plates (10) on both sides.

8. A modular splicing battery module bracket according to claim 7, characterized in that, The upper housing (1) and the lower housing (2) are provided with threaded posts (11) and buckles (12) at intervals on the side opposite to the first side (41) to fix the circuit board. A notch (1001) corresponding to the circuit board is provided on the side cover plate (10), and the notch (1001) is used to connect the circuit board to the external circuit.

9. A modular splicing battery module bracket according to claim 7, characterized in that, The upper housing (1) and the lower housing (2) are provided with at least one internal threaded hole (13) at both ends of the side opposite to the opening of the receiving groove (31). The front cover plate (9) is provided with at least two pre-cut plates (91), and the positions of the pre-cut plates (91) and the internal threaded holes (13) correspond one-to-one.

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