Battery pack holder, holder assembly, and vehicle

Abstract

A battery pack holder (100), a holder assembly (10), and a vehicle (1). The vehicle (1) comprises the holder assembly (10), and the holder assembly (10) comprises the battery pack holder (100). The battery pack holder (100) comprises: a support platform (100a) and at least two cantilever beams (110). The support platform (100a) is configured to mount a battery pack (200); the at least two cantilever beams (110) are spaced apart on two sides of the support platform (100a) in a first direction; the width of at least part of each cantilever beam (110) gradually decreases in a direction away from a connecting structure; and each cantilever beam (110) at least consists of a bottom plate (110a) and two side plates (110b), and a plurality of connecting bodies (110c) are connected between the two side plates (110b).

Description

Battery pack bracket, bracket assembly and vehicle

[0001] This application claims priority to Chinese Patent Application No. 202510021848.0, filed with the Chinese Patent Office on January 6, 2025, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to, but is not limited to, the field of bracket technology, specifically to a battery pack bracket, bracket assembly, and vehicle. Background Technology

[0003] In the field of battery pack installation, battery pack brackets are commonly used to install battery packs. Battery pack brackets are generally cage-like structures, which use multiple rectangular tubes welded together to achieve the required structural strength. Invention Overview

[0004] However, the complexity of its cage-like structure limits the operating space during battery pack installation, resulting in low installation efficiency. Related technologies have not provided a solution that balances structural strength and ease of installation.

[0005] This application provides a battery pack bracket that balances structural strength and ease of installation.

[0006] In a first aspect, embodiments of this application provide a battery pack holder. The battery pack holder includes:

[0007] Support platform, configured to install battery pack; and

[0008] At least two cantilever beams are spaced apart on both sides of the support platform along a first direction;

[0009] The support platform is fixedly connected to two cantilever beams, one end of which has a connecting structure to connect to an external structure; at least a portion of the cantilever beam has a width that gradually decreases in the second direction away from the connecting structure.

[0010] The cantilever beam consists of at least a base plate and two side plates. The base plate extends along a third direction, and the two side plates are fixedly connected to the two sides of the base plate in the first direction, and multiple connecting bodies connect the two side plates.

[0011] Secondly, this application also provides a bracket assembly. The bracket assembly includes a plurality of battery pack brackets as described above;

[0012] Multiple battery pack holders are stacked along the second direction.

[0013] Thirdly, this application also provides a vehicle. The battery module includes a frame and a bracket assembly as described above; wherein the bracket assembly is mounted to the frame. Beneficial effects

[0014] The battery pack bracket provided in this application comprises a support platform and two cantilever beams forming its main body. By gradually reducing the width of at least a portion of the cantilever beams in the second direction away from the connecting structure, the operable space during battery pack installation is increased. Based on the cantilever beam width designed to facilitate battery pack installation, each cantilever beam consists of at least a base plate and two side plates, with multiple connectors linking the two side plates. This cantilever beam structure improves structural strength and ensures battery pack stability. Therefore, the battery pack bracket provided in this application balances structural strength and installation convenience.

[0015] The bracket assembly provided in this application is composed of multiple battery pack brackets stacked together, which can balance structural strength and ease of installation.

[0016] The vehicle provided in this application uses the aforementioned bracket assembly to mount the battery pack to the vehicle frame, which balances structural strength and installation convenience. Attached Figure Description

[0017] Figure 1 is a perspective view of the battery pack bracket provided in an embodiment of this application.

[0018] Figure 2 is an enlarged schematic diagram of part A in Figure 1.

[0019] Figure 3 is a top view of the battery pack bracket provided in an embodiment of this application.

[0020] Figure 4 is an enlarged schematic diagram of part B in Figure 3.

[0021] Figure 5 is a side view of the battery pack bracket provided in an embodiment of this application.

[0022] Figure 6 is an enlarged schematic diagram of part C in Figure 5.

[0023] Figure 7 is a three-dimensional schematic diagram of the cantilever beam in the battery pack bracket provided in the embodiment of this application.

[0024] Figure 8 is a top view of the cantilever beam in the battery pack bracket provided in an embodiment of this application.

[0025] Figure 9 is a schematic diagram of one assembly process of the bracket assembly provided in an embodiment of this application.

[0026] Figure 10 is a schematic diagram of another assembly process of the bracket assembly provided in the embodiment of this application.

[0027] Figure 11 is a schematic diagram of another assembly process of the bracket assembly provided in the embodiment of this application.

[0028] Figure 12 is an enlarged schematic diagram of part D in Figure 11.

[0029] Figure 13 is a schematic diagram of another assembly process of the bracket assembly provided in the embodiment of this application.

[0030] Figure 14 is a perspective view of the vehicle frame and bracket assembly provided in an embodiment of this application.

[0031] Explanation of reference numerals in the attached figures:

[0032] 100. Battery pack bracket; 110. Cantilever beam; 110a. Base plate; 110b. Side plate; 110c. Connector; 110d. Reinforcing rib; 111. Mounting part; 111a. First connecting hole; 112. Support part; 112a. Boss; 113. Transition part; 100a. Support platform; 120. Crossbeam; 121. Load-bearing pipe fitting; 122. Connector; 122a. First connecting part; 122b. Second connecting part; 122c. First transition part; 130. Second crossbeam; 131. Reinforcing pipe fitting ; 132, fastener; 132a, first fixing part; 132b, second fixing part; 132c, second adapter part; 140, tie beam; 141, support surface; 150, flexible component; 200, battery pack; 10, bracket assembly; 310, first support beam; 320, second support beam; 321, side wing; 322, fixing hole; 311, second connecting hole; 330, fastening bolt; 1, vehicle; 20, frame. Embodiments of the present invention

[0033] Example 1

[0034] This embodiment provides a battery pack bracket 100. Referring to Figures 1, 5 to 8, the battery pack bracket 100 includes a support platform 100a and a cantilever beam 110.

[0035] The support platform 100a is configured to install the battery pack 200; at least two cantilever beams 110 are provided, and the two cantilever beams 110 are spaced apart on both sides of the support platform 100a along the first direction. The support platform 100a is fixedly connected to the two cantilever beams 110 respectively, and the cantilever beams 110 support the support platform 100a, and the structure is simplified.

[0036] The first direction mentioned here, indicating left and right, is only for the convenience of describing the specific implementation of this application. There is no absolute correspondence between the first direction and the left and right directions. Similarly, there is no absolute correspondence between the second direction and the up and down directions, and between the third direction and the front and back directions. Furthermore, the first direction, second direction, and third direction of this application are only used to express relative positional relationships; they only indicate approximate locations, not absolute geometric relationships.

[0037] In some embodiments of this application, referring to Figures 1, 5 to 8, one end of the cantilever beam 110 has a connecting structure to connect to an external structure; at least a portion of the width of the cantilever beam 110 in the second direction gradually decreases in the direction away from the connecting structure.

[0038] It is understandable that the connecting structure can be connected to the external structure by means of bolts, welding, etc.

[0039] The width of at least a portion of the cantilever beam 110 in the second direction may decrease continuously, for example, the slope of the top surface of the cantilever beam 110 is uniform; or the width of at least a portion of the cantilever beam 110 in the second direction may vary in multiple segments, for example, the top surface of the cantilever beam 110 has multiple different slopes.

[0040] The cantilever beam 110 is composed of at least a base plate 110a and two side plates 110b. The base plate 110a extends along a third direction, and the two side plates 110b are respectively fixedly connected to the two sides of the base plate 110a in the first direction. A plurality of connecting bodies 110c are connected between the two side plates 110b, so that the two side plates 110b are kept in a predetermined state.

[0041] It is understandable that the two side plates 110b form an open opening on the side away from the bottom plate 110a, and the connection body 110c can effectively ensure that the size of the opening is consistent and improve the strength near the opening.

[0042] In this embodiment, the main body of the battery pack bracket 100 is formed by a support platform 100a and two cantilever beams 110. The width of at least a portion of the cantilever beams 110 gradually decreases in the second direction away from the connecting structure, increasing the operable space for battery pack 200 installation. Based on the width setting of the cantilever beams 110 to facilitate battery pack 200 installation, the cantilever beams 110 are composed of at least a base plate 110a and two side plates 110b, with multiple connectors 110c connecting the two side plates 110b. This cantilever beam 110 structure improves the structural strength of the cantilever beams 110 and ensures the stability of the battery pack 200. Therefore, the battery pack bracket 100 provided in this application can balance structural strength and installation convenience.

[0043] In some possible implementations, the side plate 110b and the bottom plate 110a can be manufactured by bending or welding of sheet metal. The side plate 110b and the bottom plate 110a are made of high-strength steel plates (e.g., 780DP) with a thickness ranging from 5.0 mm to 10.0 mm.

[0044] In some possible implementations, the connector 110c may take the form of a tubular or cylindrical structure.

[0045] In some embodiments of this application, referring to Figures 1 and 5 to 8, the cantilever beam 110 includes: a mounting part 111, a support part 112, and a transition part 113.

[0046] The mounting part 111 is provided with the above-mentioned connection structure, and the mounting part 111 is fixedly connected to the first side of the support platform 100a; the mounting part 111 is composed of at least two side plates 110b, that is, a space is formed between the two side plates 110b corresponding to the mounting part 111, which facilitates the connection between the mounting part 111 and the external structure.

[0047] The support portion 112 is fixedly connected to the second side of the support platform 100a; the transition portion 113 is connected between the mounting portion 111 and the support portion 112; wherein, both the support portion 112 and the transition portion 113 are composed of at least a base plate 110a and two side plates 110b, and the width of the transition portion 113 in the second direction gradually decreases away from the mounting portion 111. That is, the width of the mounting portion 111 in the second direction is greater than the width of the support portion 112 in the second direction, so that the left and right sides and the front side of the battery pack bracket 100 are unobstructed, which facilitates the insertion and fixation of the battery pack 200.

[0048] In some possible implementations, the connector 110c can be disposed between the two side plates 110b corresponding to the transition portion 113. Of course, provided that the size of the support portion 112 is sufficient, the connector 110c can also be disposed in the support portion 112.

[0049] In some embodiments of this application, referring to Figures 7 and 8, the cantilever beam 110 further includes a reinforcing rib 110d. The reinforcing rib 110d extends from the transition portion 113 to the support portion 112, and the reinforcing rib 110d is fixedly connected to the base plate 110a.

[0050] By setting the reinforcing rib 110d, the strength loss due to the reduction in the width of the cantilever beam 110 in the second direction can be compensated, thereby improving the stability of the battery pack bracket 100.

[0051] In some possible implementations, since the width of the transition portion 113 decreases in the second direction as it gets closer to the support portion 112, a reinforcing rib 110d is provided in the portion of the transition portion 113 closest to the support portion 112. Furthermore, since the support portion 112 has the smallest width in the second direction, the entire support portion 112 is provided with reinforcing ribs 110d to help improve the structural strength of the support portion 112.

[0052] In some embodiments of this application, the reinforcing rib 110d is disposed between the two side plates 110b, and at least a portion of the connecting body 110c passes through the reinforcing rib 110d.

[0053] It is understood that the reinforcing rib 110d is parallel to the side plates 110b on both sides, so that the connecting body 110c is perpendicularly inserted through the reinforcing rib 110d.

[0054] The structural strength and stability of the cantilever beam 110 are further improved by the cooperation of the connector 110c and the stiffener 110d.

[0055] In some embodiments of this application, referring to Figures 1 to 5, the support platform 100a includes: a first crossbeam 120, a second crossbeam 130, and a tie beam 140.

[0056] The first crossbeam 120 is fixedly connected to the mounting portion 111 of the two cantilever beams 110 respectively; the second crossbeam 130 is fixedly connected to the support portion 112 of the two cantilever beams 110 respectively; through the arrangement of the first crossbeam 120 and the second crossbeam 130, the two cantilever beams 110 are connected into a whole.

[0057] Multiple tie beams 140 are provided, and the tie beams 140 are configured to provide a support surface 141 for supporting the battery pack 200. The multiple tie beams 140 are spaced apart along a first direction; wherein, the first end of the tie beam 140 is fixedly connected to the first crossbeam 120, and the second end of the tie beam 140 is fixedly connected to the second crossbeam 130.

[0058] The first crossbeam 120 connects the mounting portions 111 of the two cantilever beams 110, thereby improving the strength of the mounting portions 111 when connected to the external structure. The second crossbeam 130 not only connects the support portions 112 of the two cantilever beams 110 to improve the stability of the support portions 112, but also effectively prevents the battery pack 200 from being bumped or squeezed.

[0059] In some embodiments of this application, referring to Figures 1 to 5, the first crossbeam 120 includes a load-bearing pipe 121 and a connector 122. The load-bearing pipe 121 is connected between the mounting portions 111 of the two cantilever beams 110; the connector 122 has a first connecting portion 122a connected to the load-bearing pipe 121 and a second connecting portion 122b connected to the tie beam 140.

[0060] It is understandable that the load-bearing pipe fitting 121 can be a rectangular pipe, which can withstand a large load, but it is not conducive to the connection with the tie beam 140. If the tie beam 140 is directly welded to the load-bearing pipe fitting 121, additional tooling is required to assist in positioning the two, resulting in low assembly efficiency.

[0061] Based on the above considerations, by setting up a connector 122, which has a first connecting part 122a and a second connecting part 122b that are adapted and positioned to fit the load-bearing pipe 121 and the tie beam 140 respectively, the assembly efficiency of the tie beam 140 and the first crossbeam 120 is improved.

[0062] In some embodiments of this application, referring to Figures 1 to 5, the connector 122 further includes a first adapter portion 122c. The first adapter portion 122c is connected between the first connecting portion 122a and the second connecting portion 122b. By using the second adapter portion 122c, the second connecting portion 122b and the first connecting portion 122a can be at different heights, thereby causing the tie beam 140 to sink relative to the first crossbeam 120, thus reducing the risk of the battery pack 200 being impacted on the side of the first crossbeam 120.

[0063] Furthermore, in order to reduce the deformation of the connector 122 caused by the weight of the battery pack 200, both ends of the first adapter 122c are respectively connected to the mounting portions 111 of the two cantilever beams 110, thereby improving the stability of the connector 122.

[0064] In some possible implementations, referring to Figures 1 to 5, the first adapter portion 122c is bent relative to the first connecting portion 122a and the second connecting portion 122b, respectively.

[0065] In some embodiments of this application, referring to Figures 1 to 5, the second crossbeam 130 includes: a reinforcing tube 131 and a fastener 132.

[0066] The reinforcing pipe 131 is connected between the support portions 112 of the two cantilever beams 110; the fastener 132 has a first fastening portion 132a connected to the reinforcing pipe 131 and a second fastening portion 132b connected to the tie beam 140.

[0067] It is understandable that the reinforcing pipe 131 can be a rectangular pipe, which can withstand a large load, but it is not conducive to the connection with the tie beam 140. If the tie beam 140 and the reinforcing pipe 131 are directly welded, additional tooling is required to assist in positioning the two, resulting in low assembly efficiency.

[0068] Based on the above considerations, by setting a fastener 132, which has a first fixing part 132a and a second fixing part 132b that are adapted and positioned to fit the reinforcing pipe 131 and the tie beam 140 respectively, the assembly efficiency of the tie beam 140 and the second crossbeam 130 is improved.

[0069] In some embodiments of this application, referring to Figures 1 to 5, the fixing member 132 further includes a second adapter portion 132c. The second adapter portion 132c connects between the first fixing portion 132a and the second fixing portion 132b. By using the second adapter portion 132c, the second fixing portion 132b and the first fixing portion 132a can be at different heights, thereby causing the tie beam 140 to sink relative to the second crossbeam 130, thus reducing the risk of the battery pack 200 being impacted on the side of the second crossbeam 130.

[0070] In some embodiments of this application, referring to Figures 5 and 6, the support portion 112 is formed with a boss 112a, and at least a portion of the second transition portion 132c overlaps with the boss 112a. The boss 112a enables the support portion 112 to provide support for the end of the second transition portion 132c, thereby improving the stability of the fastener 132.

[0071] In some embodiments of this application, the ends of the second fixing part 132b and the second adapter part 132c may also be welded to the support part 112.

[0072] In some embodiments of this application, referring to Figures 1 and 2, the battery pack bracket 100 further includes a flexible member 150. The flexible member 150 is disposed on the support surface 141 of the tie beam 140, and is configured to buffer between the support platform 100a and the battery pack 200. By providing the flexible member 150, vibrations experienced by the battery pack bracket 100 can be buffered, reducing the impact on the battery pack 200.

[0073] In some possible implementations, the flexible element 150 may be made of materials such as rubber or silicone.

[0074] Example 2

[0075] Referring to Figures 9 to 14, this application embodiment provides a bracket assembly 10, including a plurality of battery pack brackets 100 as described above; the plurality of battery pack brackets 100 are stacked along a second direction. That is, the battery pack brackets 100 are arranged in multiple layers in the vertical direction, and each layer of battery pack brackets 100 can respectively hold a battery pack 200.

[0076] In some embodiments of this application, referring to Figures 9 to 14, the bracket assembly 10 further includes a first support beam 310 and a second support beam 320.

[0077] The first support beam 310 extends along the second direction, and multiple battery pack brackets 100 are respectively connected to the first support beam 310 through a connecting structure; that is, the first support beam 310 connects multiple battery pack brackets 100 into a whole.

[0078] It is understandable that the first support beam 310 here serves as the aforementioned external structure.

[0079] The second support beam 320 is positioned between two adjacent battery pack brackets 100; the second support beam 320 and the first support beam 310 are spaced apart in the third direction. The second support beam 320 provides support to the battery pack brackets 100 at different positions in the third direction, thereby improving the stability of the battery pack brackets 100.

[0080] In some embodiments of this application, referring to Figures 9 to 14, the second support beam 320 is connected between the support portions 112 of two adjacent cantilever beams 110 in the second direction.

[0081] The second support beam 320 provides auxiliary support to the upper support part 112, thereby connecting the support parts 112 of different layers in the second direction into a whole and improving the overall structural strength of the bracket assembly 10.

[0082] In some embodiments of this application, referring to Figures 10 to 12, the end of the second support beam 320 is also provided with a side wing 321. The side wing 321 is provided with a fixing hole 322, so that the side wing 321 can be fixedly connected to the support part 112 of the upper cantilever beam 110 by bolts, which facilitates the assembly of the upper and lower battery pack brackets 100.

[0083] In some embodiments of this application, referring to Figures 1, 9 to 14, the connection structure is configured as a first connection hole 111a, and the first support beam 310 has a second connection hole 311 that mates with the first connection hole 111a.

[0084] The bracket assembly 10 also includes a fastening bolt 330. The fastening bolt 330 passes through the first connecting hole 111a and the second connecting hole 311 to fix the battery pack bracket 100 and the first support beam 310.

[0085] The battery pack bracket 100 is connected to the first support beam 310 by fastening bolts 330, which facilitates the adjustment of the flatness of the support surface 141 in the battery pack bracket 100.

[0086] In some possible implementations, each battery pack bracket 100 is pre-assembled before being connected to the first support beam 310. During installation, each battery pack 200 can be assembled with its corresponding battery pack bracket 100 first, and then the battery pack 200 and battery pack bracket 100 can be installed as a whole onto the first support beam 310. During installation, the battery pack bracket 100 can be fine-tuned according to the horizontal position of the battery pack 200. Once the designed horizontal position is achieved, the battery pack bracket 100 is locked to the first support beam 310 using fastening bolts 330. Alternatively, one layer of battery pack bracket 100 can be installed onto the first support beam 310 first, and then the battery pack 200 can be assembled with that layer of battery pack bracket 100. This process is repeated for each subsequent layer of battery pack bracket 100, achieving multi-layer assembly.

[0087] Referring to Figures 9 to 14, the assembly process of the bracket assembly 10 and the battery pack 200 is described exemplary in this application embodiment:

[0088] 1) Referring to Figure 9, pre-assemble the first layer battery pack bracket 100 and install it onto the first support beam 310;

[0089] 2) Referring to Figure 10, install the first battery pack 200 onto the first layer battery pack bracket 100;

[0090] 3) Referring to Figure 11, pre-assemble the second-layer battery pack bracket 100 and install it onto the first support beam 310 (this step mainly shows the installation of the battery pack bracket 100; the battery pack 200 is not shown).

[0091] 4) Referring to Figure 13, the second battery pack 200 is installed onto the second battery pack bracket 100;

[0092] 5) By analogy, the battery pack 200 with the preset number of layers can be installed.

[0093] Example 3

[0094] Referring to FIG14, an embodiment of this application provides a vehicle 1, including a frame 20 and a bracket assembly 10 as described above; wherein the bracket assembly 10 is mounted to the frame 20.

Claims

1. A battery pack holder (100), characterized in that, include: Support platform (100a) is configured to install battery pack (200). and At least two cantilever beams (110) are spaced apart on both sides of the support platform (100a) along a first direction; The support platform (100a) is fixedly connected to two cantilever beams (110), one end of which has a connecting structure to connect to an external structure; at least a portion of the width of the cantilever beam (110) in the second direction gradually decreases in the direction away from the connecting structure. The cantilever beam (110) is composed of at least a base plate (110a) and two side plates (110b). The base plate (110a) extends along a third direction, and the two side plates (110b) are respectively fixedly connected to the base plate (110a) on both sides in the first direction. A plurality of connecting bodies (110c) are connected between the two side plates (110b).

2. The battery pack holder (100) according to claim 1, wherein, The cantilever beam (110) includes: The mounting part (111) is provided with the connection structure, and the mounting part (111) is fixedly connected to the first side of the support platform (100a); The support part (112) is fixedly connected to the second side of the support platform (100a); and A transition section (113) is connected between the mounting section (111) and the support section (112); The mounting part (111) is composed of at least two side plates (110b), and the support part (112) and the transition part (113) are each composed of at least the base plate (110a) and the two side plates (110b).

3. The battery pack holder (100) according to claim 2, wherein, The width of the transition portion (113) in the second direction gradually decreases in the direction away from the mounting portion (111).

4. The battery pack holder (100) according to claim 2, wherein, The cantilever beam (110) also includes: A reinforcing rib (110d) extends from the transition portion (113) to the support portion (112). The reinforcing rib (110d) is fixedly connected to the base plate (110a).

5. The battery pack holder (100) according to claim 4, wherein, The reinforcing rib (110d) is disposed between the two side plates (110b), and at least part of the connecting body (110c) passes through the reinforcing rib (110d).

6. The battery pack holder (100) according to any one of claims 2 to 5, wherein, The support platform (100a) includes: The first crossbeam (120) is fixedly connected to the mounting parts (111) of the two cantilever beams (110). The second crossbeam (130) is fixedly connected to the support portions (112) of the two cantilever beams (110); and Multiple tie beams (140) are configured to provide a support surface (141) for supporting the battery pack (200), and the multiple tie beams (140) are spaced apart along the first direction; The first end of the tie beam (140) is fixedly connected to the first crossbeam (120), and the second end of the tie beam (140) is fixedly connected to the second crossbeam (130).

7. The battery pack holder (100) according to claim 6, wherein, The first crossbeam (120) includes: A load-bearing pipe fitting (121) is connected between the mounting portions (111) of the two cantilever beams (110); and The connector (122) has a first connecting part (122a) connected to the load-bearing pipe (121) and a second connecting part (122b) connected to the tie beam (140).

8. The battery pack holder (100) according to claim 7, wherein, The connector (122) further includes: The first adapter (122c) is connected between the first connecting part (122a) and the second connecting part (122b).

9. The battery pack holder (100) according to claim 8, wherein, The two ends of the first adapter (122c) are also respectively connected to the mounting parts (111) of the two cantilever beams (110).

10. The battery pack holder (100) according to claim 8, wherein, The first adapter (122c) is bent relative to the first connecting part (122a) and the second connecting part (122b).

11. The battery pack holder (100) according to claim 6, wherein, The second crossbeam (130) includes: A reinforcing fitting (131) is connected between the supports (112) of the two cantilever beams (110); and The fastener (132) has a first fastening part (132a) connected to the reinforcing tube (131) and a second fastening part (132b) connected to the tie beam (140).

12. The battery pack holder (100) according to claim 11, wherein, The fastener (132) also includes: The second adapter (132c) is connected between the first fixing part (132a) and the second fixing part (132b); The support portion (112) has a boss (112a) and at least a portion of the second adapter portion (132c) overlaps the boss (112a).

13. The battery pack holder (100) according to claim 6, wherein the battery pack holder (100) further comprises: A flexible element (150) is configured to provide cushioning between the support platform (100a) and the battery pack (200); The flexible component (150) is disposed on the support surface (141) of the tie beam (140).

14. The battery pack holder (100) according to any one of claims 2 to 5, wherein, The thickness of the base plate (110a) ranges from 5.0 mm to 10.0 mm; And / or the thickness of the side plate (110b) ranges from 5.0 mm to 10.0 mm.

15. A bracket assembly (10) comprising a plurality of battery pack brackets (100) as described in any one of claims 1 to 14. in, Multiple battery pack holders (100) are stacked along the second direction.

16. The bracket assembly (10) according to claim 15, characterized in that, The bracket assembly (10) also includes: A first support beam (310) extends along a second direction, and a plurality of the battery pack brackets (100) are respectively connected to the first support beam (310) via a connecting structure; and The second support beam (320) is supported between two adjacent battery pack brackets (100); The second support beam (320) and the first support beam (310) are spaced apart in the third direction.

17. The bracket assembly (10) according to claim 16, wherein, The cantilever beam (110) includes: The mounting part (111) is provided with the connection structure, and the mounting part (111) is fixedly connected to the first side of the support platform (100a); The support part (112) is fixedly connected to the second side of the support platform (100a); and A transition section (113) is connected between the mounting section (111) and the support section (112); The second support beam (320) is connected between the support portions (112) of two adjacent cantilever beams (110) in the second direction.

18. The bracket assembly (10) according to claim 17, wherein, The second support beam (320) has: The side wing (321) is configured to be fixedly connected to the support (112) of the upper cantilever beam (110); The side wing (321) is located at the end of the second support beam (320).

19. The bracket assembly (10) according to claim 16, wherein, The connection structure is configured as a first connection hole (111a), and the first support beam (310) has a second connection hole (311) that mates with the first connection hole (111a). The bracket assembly (10) also includes: Fastening bolts (330) are inserted through the first connecting hole (111a) and the second connecting hole (311) to fix the battery pack bracket (100) and the first support beam (310).

20. A vehicle (1) comprising a frame (20) and a bracket assembly (10) as claimed in any one of claims 15 to 19; wherein, The bracket assembly (10) is mounted to the frame (20).

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