Battery pack and vehicle

Abstract

The application relates to a battery pack and a vehicle. The battery pack comprises a box body, a first battery module, a support structure, a second battery module and a cover body. The cover body comprises an integrally formed connecting frame, a connecting beam and a plurality of protective covers, the plurality of protective covers are connected to the connecting frame, the plurality of protective covers are arranged at intervals along a second direction and correspond to the second battery module one by one, and the connecting beam is connected between any two adjacent protective covers. The cover body of the battery pack adopts an integrally formed design mode, the connecting frame, the connecting beam and the plurality of protective covers are integrated together, the assembly process can be simplified, the manufacturing cost is reduced, the assembly precision and the reliability of the cover body are improved, a large number of connecting components are saved, stress concentration phenomena at the connecting components can be avoided, the cover body is prevented from being deformed or broken, and the protection performance of the cover body is improved.

Description

Technical Field

[0001] This application relates to the field of battery technology, and more particularly to a battery pack and a vehicle. Background Technology

[0002] New energy vehicles have developed rapidly in recent years. As an important component of new energy vehicles, the design of the battery pack is directly related to the performance, safety and reliability of the whole vehicle.

[0003] Current battery pack cover structures typically employ a multi-component assembly method, using multiple independent protective covers and connectors to protect and secure the battery modules. However, this traditional design has the following problems: First, the assembly process is complex, manufacturing costs are high, and insufficient assembly precision affects the overall performance of the cover; second, under impact or vibration conditions, the multi-component assembled cover structure is prone to deformation or breakage due to stress concentration at the joints, leading to a failure in protecting the battery modules. Utility Model Content

[0004] This application provides a battery pack and a vehicle, which solves the problems of complex assembly processes, high manufacturing costs, insufficient assembly precision affecting the overall performance of the cover, and stress concentration at the joints leading to deformation or breakage in current multi-component assembled cover structures.

[0005] To achieve the above objectives, this application provides a battery pack having intersecting first and second directions. The battery pack includes: a housing; a first battery module disposed within the housing; a support structure connected to the housing, the support structure being located on the side of the first battery module away from the housing in the first direction; a second battery module disposed on the side of the support structure away from the first battery module, the second battery module including a plurality of second battery modules spaced apart along the second direction; and a cover connected to the housing, the cover including an integrally formed connecting frame, a connecting beam, and a plurality of protective covers, the plurality of protective covers being connected to the connecting frame, the plurality of protective covers being spaced apart along the second direction and correspondingly covering the second battery modules, and the connecting beam connecting any two adjacent protective covers.

[0006] In some embodiments, the battery pack further includes: a first sleeve passing through the housing in a first direction and abutting against a connecting beam, the side of the first sleeve away from the connecting beam being fixedly connected to the housing; and a first fastener being fastened to the end of the first sleeve away from the housing, the first fastener at least partially abutting against the side of the connecting beam away from the housing.

[0007] In some embodiments, the first fastener includes: a crimping portion abutting against the side of the connecting beam away from the housing; and a fastening portion protruding from the crimping portion and extending to the side of the connecting beam near the housing, the outer wall of the fastening portion being fastened to the first sleeve.

[0008] In some embodiments, the enclosure includes: a frame; and a plurality of splicing panels connected to the frame and spliced ​​along a second direction.

[0009] In some embodiments, the battery includes a third direction that intersects both the first and second directions; the housing also includes a reinforcing beam connected to the frame at both ends of the third direction, the reinforcing beam including a first beam portion extending along the first direction and connected to the frame at both ends of the third direction.

[0010] In some embodiments, the first sleeve passes through the reinforcing beam in a first direction; the battery pack further includes a second fastener located between the first beam and the connecting beam and fastened to the first sleeve, the second fastener at least partially abutting against the first beam.

[0011] In some embodiments, the reinforcing beam further includes: a second beam portion extending in a second direction, the second beam portion being connected to the side of the first beam portion away from the cover, and the second beam portion being connected to the frame on both sides in a third direction.

[0012] In some embodiments, the second beam is disposed between at least two adjacent splice plates, and the two sides of the second beam are connected to the splice plates in a second direction; the surface of the second beam away from the cover is flush with the surface of the splice plate away from the cover.

[0013] In some embodiments, the battery pack further includes a protective layer disposed on the side of the housing away from the cover.

[0014] To achieve the above objectives, this application also provides a vehicle including the battery pack of this application, wherein the battery pack has a dimension of 2000mm-2800mm in the second direction.

[0015] The battery pack cover of this application adopts an integrated molding design, which integrates the connecting frame, connecting beam and multiple protective covers together, which can simplify the assembly process, reduce manufacturing costs and improve the assembly accuracy and reliability of the cover.

[0016] The battery pack cover of this application adopts a one-piece molding design, which eliminates many connecting parts and avoids stress concentration at the connecting parts, which could cause the cover to deform or break, thereby improving the protective performance of the cover. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0019] Figure 1 This is a schematic diagram of the battery pack provided in an embodiment of this application;

[0020] Figure 2 This is an exploded view of the battery pack provided in an embodiment of this application;

[0021] Figure 3 This is a schematic diagram of the structure of the battery pack housing provided in the embodiments of this application;

[0022] Figure 4 This is an exploded view of the battery pack housing provided in an embodiment of this application;

[0023] Figure 5 This is a schematic diagram showing the connection between the battery pack frame and the splicing plate provided in an embodiment of this application;

[0024] Figure 6 This is a schematic diagram showing the connection between the reinforcing beam and the splicing plate of the battery pack according to an embodiment of this application;

[0025] Figure 7 This is a cross-sectional view of the battery pack provided in an embodiment of this application;

[0026] Figure 8 This is a schematic diagram of the battery pack housing and support structure provided in the embodiments of this application;

[0027] Figure 9 This is a schematic diagram of the structure of the cover of the battery pack provided in an embodiment of this application;

[0028] Figure 10 yes Figure 7 Enlarged view of point A within the dashed box.

[0029] Explanation of reference numerals in the attached figures:

[0030] 100. Battery pack; M, first direction; N, second direction; P, third direction;

[0031] 1. Housing; 2. First battery module; 3. Support structure; 4. Second battery module; 5. Cover; 6. First sleeve; 7. First fastener; 8. Second fastener; 9. Second sleeve; 10. Protective layer;

[0032] 11. Frame; 12. Splicing plate; 13. Reinforcing beam; 14. Supporting rib; 111. First side beam; 112. Second side beam; 113. Third side beam; 114. Fourth side beam; 131. First beam section; 132. Second beam section; 21. First battery module; 41. Second battery module; 51. Connecting frame; 52. Connecting beam; 53. Protective cover; 71. Pressing part; 72. Fastening part; 61. First sleeve bolt; 91. Second sleeve bolt. Detailed Implementation

[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0034] Please see Figure 1 This application provides a battery pack 100 through embodiments. The battery pack 100 has a first direction M, a second direction N, and a third direction P that intersect each other. In this embodiment, the first direction M, the second direction N, and the third direction P are perpendicular to each other. The perpendicularity of the first direction M, the second direction N, and the third direction P can be understood as the included angle between each pair of the first direction M, the second direction N, and the third direction P being 80° to 90°, and is not limited thereto.

[0035] Please see Figure 2 The battery pack 100 includes: a housing 1, a first battery module 2, a support structure 3, a second battery module 4, and a cover 5.

[0036] Please see Figure 3 and Figure 4 The box body 1 includes a frame 11. The frame 11 includes end-to-end side beams. Specifically, the frame 11 includes a first side beam 111, a second side beam 112, a third side beam 113, and a fourth side beam 114, wherein the first side beam 111 and the second side beam 112 are arranged opposite each other in a third direction P, and the third side beam 113 and the fourth side beam 114 are arranged opposite each other in a second direction N.

[0037] Please see Figure 3 and Figure 4The housing 1 also includes multiple splicing panels 12. These splicing panels 12 are connected to the frame 11 and spliced ​​along the second direction N. Specifically, each reinforcing beam 13 has its two ends fixedly connected to the first side beam 111 and the second side beam 112 respectively in the third direction P. The end of the reinforcing beam 13 closest to the third side beam 113 is also fixedly connected to the third side beam 113, and the end of the reinforcing beam 13 closest to the fourth side beam 114 is also fixedly connected to the fourth side beam 114. This application employs a method of splicing multiple splicing plates 12, which can be flexibly adjusted according to different battery pack 100 sizes and shapes to adapt to various design requirements. By rationally dividing the size and number of splicing plates 12, the amount of material used can be reduced while ensuring the structural strength of the housing 1, thereby reducing the weight of the entire battery pack 100. The splicing plates 12 in different areas can be optimized according to the actual stress conditions, improving the adaptability and durability of the overall structure. When a splicing plate 12 is damaged, only that part needs to be replaced, without replacing the entire base plate, which significantly reduces maintenance costs and time.

[0038] Please see Figure 5 The surface of the splicing plate 12 away from the cover 5 is flush with the surface of the frame 11 away from the cover 5, thereby providing a flat surface for the protective layer 10 under the box 1, which helps to evenly distribute the material of the protective layer 10, provide a more consistent protective effect, reduce local stress concentration, and reduce the risk of damage.

[0039] Please see Figure 3 , Figure 4 and Figure 6 The housing 1 also includes reinforcing beams 13. In this embodiment, the housing 1 includes two reinforcing beams 13, which are spaced apart along the second direction N. The reinforcing beams 13 are connected to the frame 11 at both ends in the third direction P. Each reinforcing beam 13 includes a first beam portion 131, which extends along the first direction M and is connected to the frame 11 at both ends in the third direction P. Specifically, the first beam portion 131 is fixedly connected to the first side beam 111 and the second side beam 112 at both ends in the third direction P. The reinforcing beams 13 in the housing 1 of this application can improve the overall rigidity and strength of the housing 1, reduce the deformation that may occur during transportation or use, increase the impact and compression strength of the housing 1 in the third direction P, help resist external pressure and impact, and protect the first battery module 2 inside the housing 1. The reinforcing beams 13 can also serve as a partition structure to divide the battery pack 100 into different modules or areas, which is convenient for management and maintenance.

[0040] Please see Figure 3 , Figure 4 and Figure 6In some embodiments, the reinforcing beam 13 further includes a second beam portion 132. The second beam portion 132 extends along a second direction N and is connected to the side of the first beam portion 131 away from the cover 5. The two sides of the second beam portion 132 in the third direction P are connected to the frame 11. The two sides of the second beam portion 132 in the third direction P are respectively fixedly connected to the first side beam 111 and the second side beam 112. In this embodiment, the first beam portion 131 and the second beam portion 132 are integrally formed structures. By setting the second beam portion 132 on the side of the first beam portion 131 away from the cover 5, a reinforcing beam 13 resembling a "T" shape is formed, which can better distribute and bear the pressure from above, sides, and inside, thereby improving the stability and safety of the entire battery pack 100.

[0041] Please see Figure 6 In this embodiment, the second beam 132 is disposed between at least two adjacent splicing plates 12, and the second beam 132 is connected to the splicing plates 12 on both sides in the second direction N. In other words, the splicing plates 12 and the second beam 132 combine to form the bottom plate of the housing 1, which helps to evenly distribute the load within the battery pack 100, reduce local stress concentration, and extend the service life of the battery pack 100; it can also reduce the deformation that may occur in the housing 1 during use, and maintain the stability and integrity of the structure.

[0042] Please see Figure 6 The surface of the reinforcing beam 13 away from the cover 5 is flush with the surface of the splicing plate 12 away from the cover 5. Specifically, the surface of the second beam 132 away from the cover 5 is flush with the surface of the splicing plate 12 away from the cover 5, thereby providing a flat surface for the protective layer 10 under the box 1, which helps to evenly distribute the material of the protective layer 10, providing a more consistent protective effect, reducing local stress concentration, and reducing the risk of damage.

[0043] Please see Figure 6 In this embodiment, the frame 11, splicing plate 12, and reinforcing beam 13 are all made of aluminum profiles. The overlapping joints between each pair of the frame 11, splicing plate 12, and reinforcing beam 13 are all fully welded, thereby ensuring the internal strength of the box 1 and improving its load-bearing capacity. In some embodiments, supporting ribs 14 can be added inside the frame 11, splicing plate 12, and reinforcing beam 13 according to actual conditions. By setting the supporting ribs 14, the overall torsional resistance of the box 1 can be improved.

[0044] Please see Figure 7The first battery module 2 is disposed within the housing 1. The first battery module 2 includes at least one first battery module 21, and each first battery module 21 includes at least one first single battery cell. In this embodiment, the first battery module 2 includes three first battery modules 21, and each first battery module 21 includes three first single batteries. In other embodiments, the number and size of the first single batteries in the first battery module 21 can be adjusted according to actual conditions, and the number of first battery modules 21 in the first battery module 2 can also be adjusted according to actual conditions.

[0045] Please see Figure 7 and Figure 8 The support structure 3 is connected to the housing 1. The support structure 3 is located on the side of the first battery module 2 away from the housing 1 in the first direction M. The support structure 3 not only supports the second battery module 4, preventing the second battery module 4 from occupying the storage space of the first battery module 2; it also provides electrical isolation to prevent electrical interference between the first battery module 2 and the second battery module 4, improving the safety of the battery pack 100; it also provides additional rigidity and strength to help maintain the overall structural stability of the battery pack 100; and it helps to evenly distribute the load within the battery pack 100, reducing local stress concentration, protecting the battery modules and extending their service life.

[0046] Please see Figure 8 In this embodiment, the support structure 3 is fixedly connected to the end of the first beam 131 near the cover 5 in the first direction M, and the support structure 3 is fixedly connected to the end of the frame 11 near the cover 5 in the first direction M. This avoids occupying the space of the first battery module 2, thereby improving the space utilization of the box 1, increasing the integration of the battery pack 100, and enabling the box 1 to hold more first battery modules 21.

[0047] Please see Figure 7 The second battery module 4 is disposed on the side of the support structure 3 away from the first battery module 2. The second battery module 4 includes a plurality of second battery modules 41 spaced apart along a second direction N. Each second battery module 41 includes at least one second single cell. In this embodiment, the second battery module 4 includes three second battery modules 41, and each second battery module 41 includes three second single cells. In other embodiments, the number and size of the second single cells in the second battery modules 41 can be adjusted according to actual conditions, and the number of second battery modules 41 in the second battery module 4 can also be adjusted according to actual conditions.

[0048] Please see Figure 7 and Figure 9The cover 5 is connected to the housing 1. The cover 5 includes an integrally formed connecting frame 51, a connecting beam 52, and multiple protective covers 53. The multiple protective covers 53 are connected to the connecting frame 51, and the multiple protective covers 53 are spaced apart along the second direction N and correspond one-to-one to cover the second battery module 41. The connecting beam 52 connects between any two adjacent protective covers 53. The cover 5 of the battery pack 100 of this application adopts an integrally formed design. On the one hand, integrating the connecting frame 51, the connecting beam 52, and the multiple protective covers 53 together can simplify the assembly process, reduce manufacturing costs, and improve the assembly accuracy and reliability of the cover 5. On the other hand, eliminating many connecting parts can avoid stress concentration at the connecting parts, which could lead to deformation or breakage of the cover 5, thereby improving the protective performance of the cover 5.

[0049] The multiple protective covers 53 of this application cover the second battery module 41 one by one, which can provide independent and precise protection for each second battery module 41; effectively isolate the influence of the external environment on the second battery module 41, significantly improve the safety and service life of the battery pack 100; and achieve effective protection and fixation of the second battery module 41 in a limited space, significantly improving the utilization efficiency of the internal space of the battery pack 100.

[0050] Please see Figure 10 The battery pack 100 also includes a first sleeve 6. The first sleeve 6 passes through the housing 1 along a first direction M and abuts against the connecting beam 52. Specifically, the side of the first sleeve 6 away from the connecting beam 52 is fixedly connected to the housing 1. More specifically, the side of the first sleeve 6 away from the connecting beam 52 is welded to a reinforcing beam 13.

[0051] Please see Figure 10 The battery pack 100 also includes a first fastener 7. The first fastener 7 is fastened to the end of the first sleeve 6 away from the housing 1, and the first fastener 7 at least partially abuts against the side of the connecting beam 52 away from the housing 1. In this embodiment, the first fastener 7 includes a crimping portion 71 and a fastening portion 72. The crimping portion 71 abuts against the side of the connecting beam 52 away from the housing 1. The fastening portion 72 protrudes from the crimping portion 71 and extends to the side of the connecting beam 52 near the housing 1, and the outer wall of the fastening portion 72 is fastened to the first sleeve 6. Specifically, the outer wall of the fastening portion 72 is provided with a first external thread (not shown), and the end of the first sleeve 6 away from the housing 1 is provided with a first internal thread (not shown), and the first external thread of the fastening portion 72 is threadedly connected to the first internal thread of the first sleeve 6. The first sleeve 6 of this application is welded to the reinforcing beam 13 at the end away from the cover 5, and the first sleeve 6 is fastened to the first fastener 7 at the end away from the box 1. The first fastener 7 presses against the connecting beam 52 of the cover 5, thereby further improving the connection strength between the cover 5 and the box 1, preventing the cover 5 from deforming or breaking, and thus improving the protective performance of the cover 5.

[0052] Please see Figure 10 The first sleeve 6 passes through the reinforcing beam 13 along a first direction M. The battery pack 100 also includes a second fastener 8. The second fastener 8 is located between the first beam portion 131 and the connecting beam 52 and is fastened to the first sleeve 6. The second fastener 8 at least partially abuts against the first beam portion 131. Specifically, the second fastener 8 has a second internal thread (not shown), and the outer wall of the first sleeve 6 has a second external thread (not shown). The second internal thread of the second fastener 8 and the second external thread of the first sleeve 6 are threadedly connected. In this application, the first sleeve 6 passes through the reinforcing beam 13. The end of the first sleeve 6 away from the cover 5 is welded to the reinforcing beam 13, and the end of the first sleeve 6 located on the reinforcing beam 13 near the cover 5 is fastened to the second fastener 8. This can improve the load-bearing capacity of the reinforcing beam 13, thereby improving the strength of the housing 1.

[0053] Please see Figure 7 The battery pack 100 also includes a second sleeve 9. The second sleeve 9 passes through the frame 11 and the cover 5 along the first direction M. The battery pack 100 of this application is provided with a first sleeve 6 and a second sleeve 9. The first sleeve bolt 61 passes through the first sleeve 6 and is fixedly connected to the vehicle body, thereby achieving a fixed connection between the middle position of the battery pack 100 and the vehicle body; the second sleeve bolt 91 passes through the second sleeve 9 and is fixedly connected to the vehicle body, thereby achieving a fixed connection between the edge position of the battery pack 100 and the vehicle body. In other words, the battery pack 100 is connected to the vehicle body through the installation method of the middle hanging point and the four surrounding hanging points. The installation is simple, clear, convenient and quick, which can improve the installation efficiency of the battery pack 100.

[0054] Please see Figure 2 The battery pack 100 also includes a protective layer 10. The protective layer 10 is disposed on the side of the housing 1 away from the cover 5. In this embodiment, the material of the protective layer 10 is polyvinyl chloride (PVC). By coating the side of the housing 1 away from the cover 5 with PVC coating, the PVC coating has good wear resistance and can effectively resist friction and impact from external objects, reducing surface damage caused by bumps and ball impacts.

[0055] This application also provides a vehicle. The vehicle includes the battery pack 100 of this application.

[0056] In some embodiments, the vehicle is a commercial vehicle. The battery pack 100 has a dimension of 2000mm-2800mm in the second direction N, for example, the dimension of the battery pack 100 in the second direction N can be 2000mm, 2050mm, 2100mm, 2150mm, 2200mm, 2250mm, 2300mm, 2350mm, 2400mm, 2450mm, 2500mm, 2550mm, 2600mm, 2650mm, 2700mm, 2750mm, 2800mm, etc. The battery pack 100 has a dimension of 250mm-600mm in the first direction M, for example, the dimension of the battery pack 100 in the first direction M can be 250mm, 300mm, 350mm, 400mm, 450mm, 500mm, 550mm, 600mm, etc. The battery pack 100 has a dimension of 1500mm-2000mm in the third direction P. For example, the dimensions of the battery pack 100 in the third direction P can be 1500mm, 1550mm, 1600mm, 1650mm, 1700mm, 1750mm, 1800mm, 1850mm, 1900mm, 1950mm, 2000mm, etc. For instance, the battery pack 100 has a dimension of 2448mm in the second direction N and a dimension of 550mm in the first direction M. The battery pack 100 has a dimension of 1806mm in the third direction P. Compared to the traditional method of mounting multiple small standard packs under a commercial vehicle to form a battery pack 100, this application uses a separate large battery pack 100 under the commercial vehicle, which occupies less space, simplifies the installation process, reduces installation costs, improves installation efficiency, and avoids safety hazards caused by insufficient strength of the housing 1 when the small battery pack 100 carries a large amount of power.

[0057] In the description of this application, 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 technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0058] In the above embodiments, the descriptions of each embodiment have their own emphasis. Parts not described in detail in a particular embodiment can be referred to in the relevant descriptions of other embodiments. The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0059] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A battery pack (100), characterized in that, Having intersecting first direction (M) and second direction (N), the battery pack (100) includes: Box (1); The first battery module (2) is disposed inside the housing (1); A support structure (3) is connected to the housing (1), the support structure (3) being located on the side of the first battery module (2) away from the housing (1) in the first direction (M); The second battery module (4) is disposed on the side of the support structure (3) away from the first battery module (2), and the second battery module (4) includes a plurality of second battery modules (41) spaced apart along the second direction (N); The cover (5) is connected to the box (1). The cover (5) includes an integrally formed connecting frame (51), a connecting beam (52) and a plurality of protective covers (53). The plurality of protective covers (53) are connected to the connecting frame (51). The plurality of protective covers (53) are spaced apart along the second direction (N) and cover the second battery module (41) one by one. The connecting beam (52) is connected between any two adjacent protective covers (53).

2. The battery pack (100) according to claim 1, characterized in that, The battery pack (100) also includes: A first sleeve (6) extends through the housing (1) along the first direction (M) and abuts against the connecting beam (52), the side of the first sleeve (6) away from the connecting beam (52) being fixedly connected to the housing (1); and A first fastener (7) is fastened to the end of the first sleeve (6) away from the housing (1), and the first fastener (7) at least partially abuts against the side of the connecting beam (52) away from the housing (1).

3. The battery pack (100) according to claim 2, characterized in that, The first fastener (7) includes: The crimping part (71) abuts against the side of the connecting beam (52) away from the housing (1); and The fastening part (72) protrudes from the crimping part (71) and extends to the side of the connecting beam (52) near the housing (1), and the outer wall of the fastening part (72) is fastened to the first sleeve (6).

4. The battery pack (100) according to claim 2, characterized in that, The housing (1) includes: Frame (11); and Multiple splicing panels (12) are connected to the frame (11) and spliced ​​along the second direction (N).

5. The battery pack (100) according to claim 4, characterized in that, The battery pack (100) also includes a third direction (P) that intersects both the first direction (M) and the second direction (N); The housing (1) also includes: A reinforcing beam (13) is connected to the frame (11) at both ends in the third direction (P). The reinforcing beam (13) includes a first beam portion (131) that extends along the first direction (M) and is connected to the frame (11) at both ends in the third direction (P).

6. The battery pack (100) according to claim 5, characterized in that, The first sleeve (6) passes through the reinforcing beam (13) along the first direction (M); The battery pack (100) also includes: A second fastener (8) is located between the first beam portion (131) and the connecting beam (52) and is fastened to the first sleeve (6), wherein the second fastener (8) at least partially abuts against the first beam portion (131).

7. The battery pack (100) according to claim 5, characterized in that, The reinforcing beam (13) also includes: The second beam (132) extends along the second direction (N), and the second beam (132) is connected to the side of the first beam (131) away from the cover (5). The second beam (132) is connected to the frame (11) on both sides of the third direction (P).

8. The battery pack (100) according to claim 7, characterized in that, The second beam portion (132) is disposed between at least two adjacent splice plates (12), and the second beam portion (132) is connected to the splice plate (12) on both sides in the second direction (N); The surface of the second beam (132) away from the cover (5) is flush with the surface of the splicing plate (12) away from the cover (5).

9. The battery pack (100) according to claim 1, characterized in that, The battery pack (100) also includes: A protective layer (10) is provided on the side of the housing (1) away from the cover (5).

10. A vehicle, characterized in that, The battery pack (100) includes any one of claims 1-9, wherein the battery pack (100) has a dimension of 2000mm-2800mm in the second direction (N).

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