Variable configuration composite energy storage module, power supply system and electric device

Abstract

The utility model relates to battery technology field discloses a kind of variable configuration composite energy storage module, power supply system and electric device.The variable configuration composite energy storage module includes: multiple battery packs, multiple battery packs are stacked along first direction, and arbitrary adjacent two battery packs in multiple battery packs stacked along first direction are connected by double connection structure;Double connection structure includes first connection structure and second connection structure, first connection structure is partially arranged in the side of each battery pack of two battery packs being arranged adjacent along first direction towards another battery pack;Second connection structure is connected with two battery packs being arranged adjacent, and second connection structure is installed on the outer side wall of battery pack around first direction.The variable configuration composite energy storage module can improve the regularity of multiple battery packs after stacking by optimizing its structure, and guarantee the connection firmness and stability of the overall structure formed after multiple battery packs stacking.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a variable configuration composite energy storage module, power supply system and power consumption device. Background Technology

[0002] When multiple battery packs are stacked to form an energy storage or power battery module, it is often difficult to achieve fast and accurate alignment by relying on lifting tools or manual guidance. Horizontal offset or angular deflection can easily occur during the stacking process, causing misalignment between adjacent battery packs. This affects the overall regularity of the stacked battery packs and occupies too much space in the assembly environment. Moreover, there are connection problems between adjacent battery packs after stacking, which cannot guarantee the stability of the overall structure formed after stacking. Utility Model Content

[0003] This utility model provides a variable configuration composite energy storage module, a power supply system, and an electrical device. By optimizing its own structure, the variable configuration composite energy storage module can improve the regularity of multiple battery packs after stacking, and ensure the connection strength and stability of the overall structure formed by stacking multiple battery packs.

[0004] To achieve the above objectives, this utility model provides the following technical solution: In a first aspect, this application provides a variable configuration composite energy storage module, comprising: a plurality of battery packs, wherein the plurality of battery packs are stacked along a first direction, and any two adjacent battery packs stacked along the first direction are connected by a dual connection structure; the dual connection structure includes a first connection structure and a second connection structure, wherein the first connection structure is partially inserted along the first direction through the side of each of the two adjacent battery packs facing the other battery pack; the second connection structure is connected to the two adjacent battery packs, and the second connection structure is mounted on the outer side wall of the battery pack around the first direction.

[0005] It should be noted that the variable configuration composite energy storage module provided in this application, through the first connecting structure passing through adjacent battery packs arranged along the first direction, can ensure the regularity of multiple battery packs during the stacking process along the first direction and avoid misalignment of adjacent battery packs. Simultaneously, the first connecting structure passes through along the first direction to the side of the two adjacent battery packs facing each other. In this structural configuration, the first connecting structure does not occupy separate space outside the battery packs; that is, the first connecting structure does not exceed the external dimensions of the battery packs. This can improve the integration of the overall structure formed by stacking multiple battery packs, save overall structural space, and facilitate the spatial layout of devices using this variable configuration composite energy storage module.

[0006] Moreover, the variable configuration composite energy storage module provided in this application connects adjacent battery packs through a second connection structure, which can lock the relative positions between adjacent battery packs, thereby improving the connection strength and stability of the overall structure after assembly.

[0007] In summary, the variable configuration composite energy storage module provided in this application forms a continuous integral structure by connecting multiple battery packs through the first connection structure and the second connection structure. This can suppress the relative displacement and local deformation between adjacent battery packs after stacking, and improve the overall resistance to lateral displacement and impact.

[0008] Secondly, this application also provides a power system including a variable configuration composite energy storage module as provided by any of the technical solutions in the first aspect above.

[0009] It should be noted that the power system provided in this application includes the variable configuration composite energy storage module provided by any of the above technical solutions, and the power system has the advantages of the above variable configuration composite energy storage module.

[0010] Thirdly, this application also provides an electrical device, including a power supply system as provided by any of the technical solutions in the second aspect above.

[0011] It should be noted that the electrical device provided in this application includes the aforementioned power system, which in turn includes a variable configuration composite energy storage module. Accordingly, the space within the electrical device for housing the variable configuration composite energy storage module can be designed to be relatively regular, facilitating the internal spatial layout design of the electrical device. Furthermore, due to the good structural stability of the variable configuration composite energy storage module within the power system, the power system can provide a stable power supply to the electrical device. Attached Figure Description

[0012] Figure 1 A three-dimensional structural schematic diagram of the variable configuration composite energy storage module provided for an embodiment of this utility model; Figure 2 for Figure 1 Explosion diagram of the middle section structure; Figure 3 for Figure 2 A three-dimensional structural diagram of the first connecting structure in the middle; Figure 4 for Figure 2 A 3D structural diagram of a battery pack; Figure 5 for Figure 4 Top view of the battery pack; Figure 6 for Figure 4 A bottom view of the battery pack; Figure 7 for Figure 2A three-dimensional structural diagram of the second connecting structure in the middle; Figure 8 for Figure 1 A magnified structural diagram of point A in the middle.

[0013] Figure label: 100 - Battery pack; 110 - First positioning hole; 120 - Second positioning hole; 130 - Mounting groove; 200 - First connecting structure; 210 - Threaded part; 220 - Smooth part; 230 - Locking nut; 300 - Second connecting structure; 310 - Fixing plate; 311 - Plate body; 320 - Fastener. Detailed Implementation

[0014] The technical solutions in the exemplary embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. The exemplary embodiments described herein are for illustrative purposes only and are not intended to limit the scope of protection of this application. Therefore, it should be understood that various modifications and changes can be made to the exemplary embodiments without departing from the scope of protection of this application.

[0015] In the description of this application, unless otherwise expressly specified and limited, the terms “first” and “second” are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term “multiple” refers to two or more; and the term “and / or” includes any and all combinations of one or more of the associated listed items. In particular, references to “the / ” object or “a” object are also intended to indicate one of a possible plurality of such objects.

[0016] Unless otherwise specified or stated, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, an integral connection, an electrical connection, or a signal connection; "connection" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0017] Furthermore, it should be understood that the directional terms such as "upper," "lower," "inner," and "outer" described in the exemplary embodiments of this application are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the exemplary embodiments of this application. It should also be understood that, in the context of an element or feature being connected to another element (one or more) "upper," "lower," "inner," or "outer," it can be directly connected to the other element (one or more) "upper," "lower," "inner," or "outer," or indirectly connected to the other element (one or more) "upper," "lower," "inner," or "outer" through an intermediate element.

[0018] This application provides a variable configuration composite energy storage module. Figure 1 A three-dimensional structural diagram of the variable configuration composite energy storage module provided in an embodiment of this utility model. (See diagram below.) Figure 1 As shown, the variable configuration composite energy storage module includes multiple battery packs 100 stacked along a first direction. It should be understood that when the first direction is considered a vertical direction perpendicular to the ground, the offset between adjacent battery packs 100 during assembly will occur in the horizontal direction, which refers to any direction perpendicular to the vertical direction. It is worth noting that... Figure 1 The multiple battery packs 100 have the same specifications; that is, each battery pack 100 uses a standard battery pack with consistent specifications that meets the requirements, in order to ensure the regularity of the overall structure after stacking. Of course, the specific form of the battery pack 100 can be set according to requirements and is not limited to this.

[0019] Figure 2 for Figure 1 An exploded view of the middle section of the structure. Please refer to... Figure 1 refer to Figure 2 In the structure shown, any two adjacent battery packs 100 among the plurality of battery packs 100 stacked along the first direction are connected by a dual connection structure. The dual connection structure includes a first connection structure 200 and a second connection structure 300. The first connection structure 200 is partially inserted along the first direction into the side of each of the two adjacent battery packs 100 facing the other battery pack 100. The second connection structure 300 is connected to the two adjacent battery packs 100 and is mounted on the outer wall of the battery pack 100 surrounding the first direction. It is worth noting that, in this embodiment, "two adjacent battery packs 100" specifically refers to two immediately adjacent battery packs 100 among the plurality of battery packs 100 stacked along the first direction.

[0020] When assembling the variable configuration composite energy storage module provided in the embodiments of this application, such as Figure 2 As shown, a first connecting structure 200 is used to pass through adjacent battery packs 100 to limit the relative position of two adjacent battery packs 100 in the horizontal direction, so that the adjacent battery packs 100 do not shift horizontally after stacking. As an example, the first connecting structure 200 can be first passed through one battery pack 100 to pre-assemble the first connecting structure 200 and the battery pack 100. Then, multiple pre-assembled battery packs 100 carrying the first connecting structure 200 are stacked along a first direction. During the stacking operation, the first connecting structure 200 already installed in the battery pack 100 passes through adjacent battery packs 100; after repeating the operation multiple times, the stacking operation can be completed.

[0021] And, such as Figure 2As shown, a second connection structure 300 is used to connect and fix two adjacent battery packs 100. The same second connection structure 300 is fixed to the outer wall of each of the two adjacent battery packs 100 to effectively connect the adjacent battery packs 100, thereby ensuring the connection firmness and stability of the overall structure formed by stacking multiple battery packs 100.

[0022] It should be understood that the assembly operation of the second connection structure 300 relative to the battery pack 100 can be performed after adjacent battery packs 100 are stacked; after the second connection structure 300 fixes the adjacent battery packs 100, the stacking operation of the next battery pack 100 can be performed; or, the assembly operation of the second connection structure 300 relative to the battery pack 100 can be performed after all battery packs 100 have been stacked, and the specifics will not be elaborated further.

[0023] It should be noted that the variable configuration composite energy storage module provided in this application embodiment can ensure the regularity of multiple battery packs 100 during the stacking process along the first direction by passing through the first connection structure 200 through the battery packs 100 arranged adjacent to each other along the first direction, and avoid misalignment of adjacent battery packs 100.

[0024] Meanwhile, the first connecting structure 200 extends along the first direction to the side of each of the two adjacent battery packs 100 facing each other. In this structural configuration, the first connecting structure 200 does not occupy space outside the battery pack 100, that is, the first connecting structure 200 does not exceed the external dimensions of the battery pack 100. This can improve the integration of the overall structure formed by stacking multiple battery packs 100, save the space occupied by the overall structure, and facilitate the spatial layout of devices using this variable configuration composite energy storage module.

[0025] Moreover, the variable configuration composite energy storage module provided in this application embodiment is connected to the adjacent battery packs 100 through the second connection structure 300, which can lock the relative position between the adjacent battery packs 100, thereby improving the connection firmness and stability of the overall structure after assembly.

[0026] In summary, the variable configuration composite energy storage module provided in this application embodiment forms a continuous integral structure of multiple battery packs 100 through the first connection structure 200 and the second connection structure 300, which can suppress the relative displacement and local deformation between adjacent battery packs 100 after stacking, and improve the overall resistance to lateral displacement and impact.

[0027] When configuring the variable configuration composite energy storage module provided in this application embodiment, the number of first connection structures 200 between adjacent battery packs 100 can be set according to requirements, such as one or more. When there are multiple first connection structures 200, the multiple first connection structures 200 can be spaced apart to avoid rotation of adjacent battery packs 100 during assembly. Figure 2 As shown, as an example, the number of first connection structures 200 between adjacent battery packs 100 is four. It should be understood that this is due to perspective. Figure 2 Only three first connection structures 200 can be observed. The four first connection structures 200 correspond to the four corners of the battery pack 100 to reduce the possibility of adjacent battery packs 100 shifting during stacking.

[0028] Meanwhile, the number of second connection structures 300 connecting adjacent battery packs 100 can be one or more. When there are multiple second connection structures 300, they can be spaced apart to fix adjacent battery packs 100 from different positions, improving the stability of the stacked battery packs. As an example, such as Figure 2 As shown, there are four second connection structures 300 between adjacent battery packs 100. It should be understood that this is due to the viewing angle. Figure 2 Only three second connection structures 300 can be observed in the middle.

[0029] Figure 4 for Figure 2 A three-dimensional structural diagram of a 100-cell battery pack; Figure 5 for Figure 4 Top view of the battery pack 100; Figure 6 for Figure 4 A bottom view of the battery pack 100. (See image below.) Figure 4 , Figure 5 and Figure 6 As shown, along the first direction, the top of the battery pack 100 is provided with a first positioning hole 110, and the bottom of the battery pack 100 is provided with a second positioning hole 120; the center line of the first positioning hole 110 is parallel to the first direction, and the center line of the second positioning hole 120 is collinear with the center line of the first positioning hole 110. Figure 3 for Figure 2 A three-dimensional structural diagram of the first connecting structure. Please refer to... Figures 3 to 6 refer to Figure 2The structure shown includes a positioning pin in the first connecting structure 200. One end of the positioning pin, along a first direction, passes through a first positioning hole 110 in the bottom battery pack 100 of two adjacent battery packs 100. The other end of the positioning pin, along the first direction, passes through a second positioning hole 120 in the top battery pack 100 of the two adjacent battery packs 100. In this embodiment, positioning with the positioning pin ensures that the battery pack 100 is correctly positioned in its length and width directions after placement, thus paving the way for the installation of the second connecting structure 300.

[0030] It is worth noting that on the side of two adjacent battery packs 100 facing each other, the center line of the second positioning hole 120 of one battery pack 100 is collinear with the center line of the second positioning hole 120 of the other battery pack 100. Accordingly, when stacking adjacent battery packs 100, if the positioning pin is first inserted into the first positioning hole 110 of one battery pack 100, the second positioning hole 120 of the subsequently stacked battery pack 100 can be unobstructed along the first direction over the portion of the positioning pin exposed in the previous battery pack 100. This enables rapid and accurate guidance and alignment during stacking, effectively eliminating the risk of accumulated offset and misalignment, and improving stacking efficiency and positioning reliability.

[0031] In some embodiments, such as Figure 3 As shown, the locating pin includes a threaded portion 210, a smooth portion 220, and a locking nut 230. The locking nut 230 is located between the threaded portion 210 and the smooth portion 220 along a first direction and is connected to the threaded portion 210 and the smooth portion 220. Figure 4 The inner wall of the first positioning hole 110 shown is provided with an internal thread. Please refer to... Figures 4 to 6 refer to Figure 2 In the structure shown, in the two adjacent battery packs 100, the internal thread of the first positioning hole 110 of the bottom battery pack 100 is screwed to the threaded portion 210, and the second positioning hole 120 of the top battery pack 100 is sleeved on the outside of the smooth portion 220.

[0032] It should be noted that the threaded portion 210 of the positioning pin can be threadedly connected to the internal thread in the first positioning hole 110 to ensure the connection stability of the first connecting structure 200 relative to the battery pack 100 where the first positioning hole 110 is located. This provides effective positioning for another battery pack 100 that is subsequently stacked, ensuring the neatness of the stacked battery packs 100. The smooth portion 220 of the positioning pin is designed to allow the second positioning hole 120 of the subsequently stacked battery pack 100 to be fitted with the positioning pin without obstruction along the first direction. This enables rapid and accurate guidance and alignment during stacking, effectively eliminating the risk of cumulative offset and misalignment, and improving stacking efficiency and positioning reliability.

[0033] In some embodiments, the depth of the first positioning hole 110 along the first direction is greater than or equal to the height of the threaded portion 210 along the first direction, so as to ensure that the threaded portion 210 can be fully inserted along the first direction, thereby providing sufficient axial tightening space for the locking nut 230, avoiding ineffective locking or insufficient connection strength due to the threaded portion 210 being too short, and thus providing effective limiting for another battery pack 100 to be stacked subsequently, ensuring the regularity of the multiple battery packs 100 after stacking.

[0034] In some embodiments, the top of the battery pack 100 along the first direction is further provided with a countersunk hole, and the first positioning hole 110 is provided at the bottom of the countersunk hole; the depth of the countersunk hole along the first direction is greater than or equal to the height of the locking nut 230 along the first direction, so that the locking nut 230 is completely contained inside the countersunk hole and does not exceed the side surface of the battery pack 100 facing the other battery pack 100.

[0035] It should be noted that the beneficial effects of this design are as follows: On the one hand, the locking nut 230 does not protrude beyond the surface of the battery pack 100, which can avoid occupying additional stacking space due to the nut protruding, thereby improving the space utilization and overall structural compactness when multiple battery packs 100 are stacked; on the other hand, the countersunk hole provides circumferential protection and limitation for the locking nut 230, which can prevent the locking nut 230 from being loosened or damaged by lateral impact during stacking or vibration, and can also prevent the exposed locking nut 230 from scratching the structural layer of the surface of adjacent battery packs 100, which can improve the safety, reliability and structural consistency of the battery pack 100 during stacking operations.

[0036] In some embodiments, Figure 7 for Figure 2 A three-dimensional structural diagram of the second connecting structure 300. Please refer to... Figure 2 refer to Figure 7 As shown in the diagram, the second connection structure 300 includes a fixing plate 310, which is embedded in the outer wall of the battery pack 100. Accordingly, the surface of the fixing plate 310 does not protrude from the outer wall of the battery pack 100. It is worth noting that in this structural arrangement, the fixing plate 310 does not occupy separate space outside the battery pack 100; that is, the fixing plate 310 does not exceed the external dimensions of the battery pack 100. This improves the integration of multiple stacked battery packs 100, saves overall structural space, facilitates spatial layout of devices using this variable configuration composite energy storage module, and enables standardized, modular stacking of the variable configuration composite energy storage module to meet the integration requirements of high-density power systems.

[0037] Of course, due to factors such as assembly errors, the second connection structure 300 may extend slightly beyond the outer wall of the battery pack 100, and this structural form is also included within the protection scope of the embodiments of this application.

[0038] In some embodiments, such as Figure 2 and Figure 4 As shown, the outer side wall of the battery pack 100 is provided with mounting grooves 130 in the top and bottom regions along the first direction, and the fixing plate 310 is installed in the mounting grooves 130.

[0039] For adjacent battery packs 100 after stacking, the fixing plate 310 is installed in the preset mounting slots 130 of the two adjacent battery packs 100. Figure 8 for Figure 1 Please refer to the enlarged structural diagram at point A in the middle. Figure 8 refer to Figure 2 As shown in the structure, a portion of the fixing plate 310 is placed in the mounting slot 130 of one of the two adjacent battery packs 100, and the other portion of the fixing plate 310 is placed in the mounting slot 130 of the other of the two adjacent battery packs 100.

[0040] It should be noted that in this embodiment, by providing mounting grooves 130 in both the top and bottom regions of the outer wall of the battery pack 100 along the first direction, the mounting groove 130 located in the bottom region of one battery pack 100 is positioned along the first direction close to the mounting groove 130 located in the top region of the other battery pack 100. Therefore, the fixing plate 310 does not need to extend further along the first direction to complete the fixing operation of the two adjacent battery packs 100.

[0041] As an example, such as Figure 2 As shown, taking the mounting groove 130 on the top of the battery pack 100 as an example, the mounting groove 130 also has an opening on the side facing the other battery pack 100, so that the fixing plate 310 can be inserted into the mounting groove 130, which can reduce the assembly difficulty and improve the assembly efficiency.

[0042] It is worth noting that, in the fabrication of the battery pack 100, the battery pack 100 includes a housing and a battery group or battery module disposed within the housing. The battery group includes multiple electrically connected individual cells, and the battery module, relative to the battery group, binds the multiple individual cells together to form a single unit via side plates and / or end plates. The multiple individual cells within the battery module are electrically connected. A fixing plate 310 is embedded in the outer wall of the battery pack 100, that is, a mounting groove 130 is formed on the outer wall of the housing.

[0043] In some embodiments, please combine Figure 7 refer to Figure 2 The structure shown includes a fixing plate 310 comprising two interconnected plates 311, with the two plates 311 arranged at an angle greater than 0°. For example... Figure 2As shown, the battery pack 100 is a cube; in the fixing plate 310, one plate 311 is connected to one outer wall of the battery pack 100, and another plate 311 is connected to another adjacent outer wall of the same battery pack 100. In other words, the battery pack 100 has corner positions on its outer walls, one plate 311 is connected to one side of the outer wall, and the other plate 311 is connected to the adjacent other side wall, so as to increase the fixing points between the fixing plate 310 and the battery pack 100, improve the fixing effect of the second connecting structure 300 on adjacent battery packs 100, and thus optimize the stability of the overall structure after stacking.

[0044] Meanwhile, since the fixing plate 310 is connected to the adjacent outer sidewalls of the battery pack 100, the fixing plate 310 can also limit the adjacent battery pack 100 from multiple angles in the horizontal direction, thereby simultaneously improving the fixing effect of the second connecting structure 300 on the adjacent battery pack 100 and optimizing the stability of the overall structure after stacking.

[0045] In some embodiments, such as Figure 8 As shown, each of the two plates 311 is connected to two battery packs 100 arranged adjacent to each other along the first direction, so as to further optimize the fixing effect of the second connection structure 300 on the adjacent battery packs 100 and optimize the stability of the overall structure after stacking.

[0046] In some embodiments, such as Figure 7 As shown, the included angle between the two plates 311 is 90 degrees, and the fixing plate 310 forms an L-shaped fixing plate 310. It should be understood that the included angle between the two plates 311 can be approximately 90 degrees. The shape of the fixing plate 310 is preferably adapted to the shape of the outer wall of the battery pack 100 at the corner position, so as to improve the fit of the fixing plate 310 in the mounting groove 130 and control its outer surface not to exceed the outer wall of the battery pack 100.

[0047] Moreover, the L-shaped fixing plate 310 can form a standardized connector with an L-shaped cross section, and simultaneously fix adjacent battery packs 100 through fasteners 320 to form a continuous force transmission path; and the L-shaped fixing plate 310 is completely embedded in the reserved installation on the side wall of the battery pack 100 without any external structure, which can ensure the consistency of the external dimensions of the battery pack 100.

[0048] In this embodiment, the fixing plate 310 and the battery pack 100, as well as the side wall of the box, can be machined to ensure contact rigidity and avoid vibration amplification caused by gaps.

[0049] In addition, the L-shaped mounting plate 310 can adopt a universal design to adapt to battery packs 100 of different series and capacities, enabling rapid stacking and integration across models.

[0050] Of course, the L-shaped fixing plate 310 itself can also be adjusted according to working conditions and other circumstances.

[0051] In some embodiments, the second connection structure 300 further includes a fastener 320, and the fixing plate 310 is detachably installed in the mounting groove 130 by means of the fastener 320; the fastener 320 does not extend beyond the outer surface of the fixing plate 310, so as to realize convenient disassembly and assembly between the fixing plate 310 and the battery pack 100, which facilitates later maintenance and individual replacement of the faulty battery pack 100, reduces maintenance costs, and provides stable and reliable stacking fixation through the locking force of the fastener 320.

[0052] It is worth noting that the battery pack 100 has mounting grooves 130 machined in the top and bottom areas of the outer side wall, and internal threads are machined on the end face of the mounting grooves 130 for connection and engagement with the fasteners 320.

[0053] like Figure 8 As shown, the side surface of the fastener 320 facing away from the outer wall of the battery pack 100 does not extend beyond the fixing plate 310, thus controlling the outer surface of the fastener 320 to not exceed the outer wall of the battery pack 100, so that the fastener 320 does not occupy space separately on the outside of the battery pack 100. As an example, the fastener 320 can be a countersunk bolt. Of course, due to factors such as assembly errors, the fastener 320 may slightly extend beyond the outer wall of the battery pack 100, and this structural form is also included within the protection scope of the embodiments of this application.

[0054] It is worth noting that the fasteners 320 used to connect and fix the fixing plate 310 to the same battery pack 100 can be one or more, and can be set according to requirements. For example Figure 8 As shown, in the L-shaped fixing plate 310, each plate 311 is connected to the same battery pack 100 by fasteners 320.

[0055] In addition, the fixing plate 310 can also fix adjacent battery packs 100 in other ways, such as snap-fit, etc., which will not be described in detail here.

[0056] This document provides a schematic diagram of the stacking operation process for the battery pack 100 within a variable configuration composite energy storage module. The specific implementation steps are as follows: 1. Place the battery pack 100 on the workbench; install the four positioning pins into the first positioning hole 110 of the battery pack 100 and fix them with a tool.

[0057] 2. Place the second battery pack 100 on top of the first battery pack 100 located at the bottom, ensuring that the second positioning hole 120 of the second battery pack 100 engages with the positioning pin installed on the top of the first battery pack 100.

[0058] 3. After the second battery pack 100 is stacked, the two battery packs 100 are secured using an L-shaped fixing plate 310 and fasteners 320 such as countersunk screws.

[0059] 4. Tighten the fasteners to 320 rpm.

[0060] This application also provides a power system. The power system includes the variable configuration composite energy storage module provided by any of the above-described technical solutions. This power system possesses the advantages of the aforementioned variable configuration composite energy storage module.

[0061] When applying the power system provided in the embodiments of this application, multiple battery packs 100 can be stacked to form a variable configuration composite energy storage module. The power system may include one or more variable configuration composite energy storage modules. The electrical connection between multiple variable configuration composite energy storage modules can be series and / or parallel. The electrical connection between multiple battery packs 100 within a single variable configuration composite energy storage module can be series. The electrical connection between multiple individual battery cells within each battery pack 100 can be series and / or parallel, thereby forming a power system of preset specifications to meet the power consumption needs of electrical devices.

[0062] This application also provides an electrical device. This electrical device includes the power supply system provided by any of the above-described technical solutions.

[0063] It should be noted that the electrical device provided in this application embodiment includes the aforementioned power system, which in turn includes a variable configuration composite energy storage module. Accordingly, the space within the electrical device for housing the variable configuration composite energy storage module can be designed to be relatively regular, facilitating the internal space layout design of the electrical device. Furthermore, because the variable configuration composite energy storage module within the power system has good structural stability, the power system can provide a stable power supply to the electrical device.

[0064] In general, when the variable configuration composite energy storage module is installed and fixed in an electrical device such as a ship, the positioning pins together with the fixing plate 310 can provide support and reinforcement for the multiple battery packs 100 stacked along the first direction when the variable configuration composite energy storage module sways with the ship, which can effectively improve the anti-sway capability of the battery packs 100.

[0065] As an example, the vessel could be a ship. Of course, other electrical devices can also be configured to use the aforementioned variable configuration composite energy storage modules, which will not be elaborated further.

[0066] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the utility model disclosed herein. This application is intended to cover any variations, uses, or adaptations of the utility model that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and exemplary embodiments are to be considered exemplary only, and the true scope and spirit of this application are indicated by the appended claims.

[0067] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of protection of this application is limited only by the appended claims.

Claims

1. A variable configuration composite energy storage module, characterized in that, include: Multiple battery packs are stacked along a first direction, and any two adjacent battery packs stacked along the first direction are connected by a dual connection structure. The dual connection structure includes a first connection structure and a second connection structure. The first connection structure is partially inserted along the first direction into the side of each of the two adjacent battery packs facing the other battery pack. The second connection structure is connected to the two adjacent battery packs and is mounted on the outer wall of the battery pack around the first direction.

2. The variable configuration composite energy storage module according to claim 1, characterized in that, Along the first direction, the top of the battery pack is provided with a first positioning hole, and the bottom of the battery pack is provided with a second positioning hole; the center line of the first positioning hole is parallel to the first direction, and the center line of the second positioning hole is collinear with the center line of the first positioning hole; The first connection structure includes a positioning pin, one end of which passes through a first positioning hole in the bottom battery pack of two adjacent battery packs along the first direction; the other end of which passes through a second positioning hole in the top battery pack of two adjacent battery packs along the first direction.

3. The variable configuration composite energy storage module according to claim 2, characterized in that, The positioning pin includes a threaded portion, a smooth portion, and a locking nut. The locking nut is located between the threaded portion and the smooth portion along the first direction and is connected to the threaded portion and the smooth portion. The inner wall of the first positioning hole is provided with an internal thread; in the two adjacent battery packs, the internal thread of the first positioning hole of the bottom battery pack is screwed to the threaded part, and the second positioning hole of the top battery pack is sleeved on the outer side of the smooth part.

4. The variable configuration composite energy storage module according to claim 3, characterized in that, The depth of the first positioning hole along the first direction is greater than or equal to the height of the threaded portion along the first direction.

5. The variable configuration composite energy storage module according to claim 4, characterized in that, The battery pack is also provided with a countersunk hole at the top along the first direction, and the first positioning hole is provided at the bottom of the countersunk hole; the depth of the countersunk hole along the first direction is greater than or equal to the height of the locking nut along the first direction, and the locking nut is placed in the countersunk hole.

6. The variable configuration composite energy storage module according to any one of claims 1-5, characterized in that, The second connection structure includes a fixing plate, which is embedded in the outer wall of the battery pack.

7. The variable configuration composite energy storage module according to claim 6, characterized in that, The outer wall of the battery pack is provided with mounting grooves in the top and bottom regions along the first direction, and the fixing plate is installed in the mounting grooves.

8. The variable configuration composite energy storage module according to claim 7, characterized in that, The fixing plate includes two interconnected plates, which are set at an angle greater than 0°; each of the two plates is connected to two battery packs that are arranged adjacent to each other along the first direction. The battery pack is a cube; in the fixing plate, one plate is connected to one outer wall of the battery pack, and the other plate is connected to another adjacent outer wall of the same battery pack.

9. The variable configuration composite energy storage module according to claim 8, characterized in that, The included angle between the two plates is 90 degrees, and the fixing plate forms an L-shaped fixing plate.

10. The variable configuration composite energy storage module according to claim 8, characterized in that, The second connection structure further includes fasteners, and the fixing plate is detachably mounted in the mounting groove by means of the fasteners; the fasteners do not extend beyond the outer surface of the fixing plate.

11. A power supply system, characterized in that, Includes the variable configuration composite energy storage module as described in any one of claims 1-10.

12. An electrical appliance, characterized in that, Including the power supply system as described in claim 11.

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