Chassis components and vehicles

Abstract

This invention provides a vehicle frame assembly and a vehicle. The vehicle frame assembly includes: a vehicle frame; and a battery pack mounting structure, including a bracket portion, a connecting portion, and a frame assembly. The bracket portion passes through the vehicle frame and extends to both sides of the vehicle frame in the width direction. The portions of the bracket portion located on both sides of the vehicle frame in the width direction are respectively formed as mounting positions, and the portions of the bracket portion located on both sides of the vehicle frame in the width direction are respectively connected to the connecting portions, which are connected to the vehicle frame, so that the bracket portion is assembled to the vehicle frame through the connecting portions. The mounting positions of the bracket portion are provided with first connecting holes, and the frame assembly is provided with mating holes. Fasteners pass through the first connecting holes and the mating holes to lock the frame assembly to the bracket portion. The frame assembly defines a receiving space for accommodating the battery pack. The vehicle frame assembly provided by this invention improves the overall torsional resistance of the vehicle frame, reduces the risk of the vehicle's center of gravity shifting to one side, and improves vehicle driving safety.

Description

Technical Field

[0001] This invention relates to the field of vehicles, and particularly to a chassis assembly and a vehicle. Background Technology

[0002] In existing technology, battery packs are placed on both sides of the vehicle frame. Due to the heavy weight of the battery packs, the battery packs on both sides are prone to unevenness when the vehicle is in motion, causing the vehicle's center of gravity to shift to one side, which in turn makes the vehicle prone to tilting or overturning accidents. Summary of the Invention

[0003] One object of the present invention is to provide a frame assembly that improves the overall torsional resistance of the frame, reduces the risk of the vehicle's center of gravity shifting to one side, and enhances the vehicle's driving safety.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] The present invention provides a vehicle frame assembly, comprising: a vehicle frame; a battery pack mounting structure, including a bracket portion, a connecting portion, and a frame assembly, wherein the bracket portion passes through the vehicle frame and extends to both sides of the vehicle frame in the width direction, the portions of the bracket portion located on both sides of the vehicle frame in the width direction are respectively formed as mounting positions, and the portions of the bracket portion located on both sides of the vehicle frame in the width direction are respectively connected to the connecting portion, the connecting portion being connected to the vehicle frame, such that the bracket portion is assembled to the vehicle frame through the connecting portion;

[0006] The bracket portion has a first connecting hole at the mounting position, and the frame assembly has a mating hole. Fasteners pass through the first connecting hole and the mating hole to lock the frame assembly to the bracket portion. The frame assembly defines a receiving space for accommodating a battery pack.

[0007] According to some technical solutions of the present invention, the frame has a lower surface and two side surfaces, the two side surfaces are arranged opposite to each other and have a gap, the bracket portion is located on the lower side of the lower surface and is not connected to each other, the two side surfaces opposite to each other each have the connecting portion, and the connecting portion is connected to the side surface opposite to it.

[0008] According to some technical solutions of the present invention, the bracket portion includes two lower crossbeams arranged at intervals from each other, the lower crossbeams extending along the width direction of the vehicle frame, and the top walls of the portions of the two lower crossbeams located on the same side of the vehicle frame jointly define the mounting position;

[0009] The lower crossbeam is also equipped with a reinforcing structure, which is connected to the top wall.

[0010] According to some technical solutions of the present invention, the top wall is bent at one end along the width direction of the lower crossbeam to form a first sidewall, and at the other end to form a second sidewall, so that the cross-section of the lower crossbeam is "U" shaped, and the reinforcing structure includes the first sidewall and the second sidewall.

[0011] According to some technical solutions of the present invention, the connecting part includes connecting side plates, and each lower crossbeam has connecting side plates at both ends in the length direction, so that each lower crossbeam is assembled to the frame through the two connecting side plates disposed thereon, wherein the connecting side plates include:

[0012] The main board has a first sidewall located at the end of the top wall of the lower crossbeam away from the other lower crossbeam. The main board is located to the side of the first sidewall. The lower end of the main board is provided with a second connecting hole. Fasteners pass through the second connecting hole and are connected to the first sidewall to lock the connecting side plate to the lower crossbeam.

[0013] The first flange is formed by folding the end of the main board facing the frame toward the lower crossbeam;

[0014] A reinforcing angle plate is provided at the bend of the main board and the first flange and connects the main board and the first flange. The first flange and the reinforcing angle plate are provided with a third connecting hole. The fastener passes through the third connecting hole and is connected to the frame to lock the connecting side plate to the frame.

[0015] The second flange is formed by folding the lower end of the first flange. The second flange has a fourth connecting hole, through which the fastener passes and is connected to the top wall to lock the connecting side plate to the lower crossbeam.

[0016] According to some technical solutions of the present invention, one of the first connecting hole and the mating hole is a circular hole and the other is an oblong hole.

[0017] According to some technical solutions of the present invention, the frame assembly includes a top cover module and two or more frame modules, each frame module defining the accommodating space, wherein,

[0018] The frame modules are stacked and connected sequentially from bottom to top, with the mating hole provided on the lower frame module and the top cover module disposed on the upper frame module.

[0019] According to some technical solutions of the present invention, the frame module includes:

[0020] The bottom frame includes two parallel and spaced longitudinal beams, and multiple spaced transverse beams are connected between the two longitudinal beams.

[0021] Multiple columns are provided, with each end of the two longitudinal beams connected to a column along their length. The multiple columns and the base frame together define the accommodating space.

[0022] According to some technical solutions of the present invention, the longitudinal beam is hollow and has a plurality of through holes extending along the height direction. A support tube is provided in the through hole, and a fastener can pass through the support tube and be connected to the battery pack to fix the battery pack to the longitudinal beam.

[0023] The support tube has protrusions at both ends in the height direction. Each protrusion includes a first step surface, a second step surface, and a stepped surface that connects the first step surface and the second step surface. The stepped surface contacts the side wall of the perforation, the first step surface contacts the inner surface of the longitudinal beam to restrict the support tube from leaving the perforation, and the second step surface is coplanar with the outer surface of the longitudinal beam.

[0024] Another object of the present invention is to provide a vehicle comprising: a battery pack; and a frame assembly as described in any of the foregoing technical solutions, wherein the battery pack is disposed within a receiving space of a frame assembly of the frame assembly.

[0025] In this invention, the bracket portion passes through the vehicle frame and extends to both sides of the frame in the width direction. This results in better overall integrity of the bracket portion, a simpler structure, and better torsional resistance. When the battery packs on both sides are uneven during vehicle operation, the battery pack with the center of gravity on the upper side tends to press down on its mounting position under the influence of gravity, while the mounting position on the other side tends to rise in the opposite direction. This allows the bracket portion to maintain balance to a certain extent, reducing the risk of the vehicle's center of gravity shifting to one side and improving vehicle driving safety.

[0026] Furthermore, the bracket itself is not directly connected to the frame, but is assembled onto the frame through a connecting part. This helps to reduce the force transmission between the bracket and the frame. On the one hand, the mounting positions on both sides of the bracket are not obstructed by the frame, resulting in better balance. On the other hand, it reduces the risk of damage to the bracket and the frame under the interaction force, extends the service life of the frame and the bracket, and ensures the driving safety of the vehicle.

[0027] In addition, the frame assembly is fixed on the mounting position of the bracket, and the battery pack is placed in the receiving space of the frame assembly. The frame assembly fixes the battery pack more firmly, reducing the risk of the battery pack slipping. The battery pack transmits force to the frame assembly, and then the frame assembly transmits force to the bracket. This makes the bracket more evenly stressed, which is beneficial to improving the torsional resistance.

[0028] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the invention. Attached Figure Description

[0029] The above and other objects, features and advantages of the present invention will become more apparent from a detailed description of exemplary embodiments thereof with reference to the accompanying drawings.

[0030] Figure 1 This is a three-dimensional structural schematic diagram of a vehicle frame assembly according to an embodiment of the present invention.

[0031] Figure 2 This is a three-dimensional structural diagram of the lower crossbeam according to one embodiment of the present invention.

[0032] Figure 3 This is a three-dimensional structural diagram of the connecting side plate according to an embodiment of the present invention.

[0033] Figure 4 This is a three-dimensional structural diagram of a frame module according to an embodiment of the present invention.

[0034] Figure 5 This is a three-dimensional structural schematic diagram of another frame module according to one embodiment of the present invention.

[0035] Figure 6 This is a three-dimensional structural diagram of a top cover module according to an embodiment of the present invention.

[0036] Figure 7 This is a cross-sectional structural schematic diagram of the lower crossbeam according to one embodiment of the present invention.

[0037] The annotations in the attached figures are explained as follows:

[0038] Frame 10, Frame longitudinal beams 11, Side 12

[0039] Bracket section 21, lower crossbeam 211, top wall 2111, first side wall 2112, second side wall 2113, first connecting hole 2114, first hole 2115, second hole 2116

[0040] Connecting side plate 221, main board 2211, first flange 2212, reinforcing corner plate 2213, second flange 2214, second connecting hole 2215, third connecting hole 2216, fourth connecting hole 2217, weight reduction hole 2218, frame assembly 30, top cover module 31, bottom frame module 32A, middle frame module 32B, longitudinal beam 3211, support pipe 32112, boss 32113, first step surface 32114, second step surface 32115, stepped surface 32116, crossbeam 3212, column 3213, mating hole 3214, accommodating space 3215, base plate 3216, corner wrapping structure 3217, first connecting structure 3218, second connecting structure 3219.

[0041] Battery pack 2. Detailed Implementation

[0042] Although the invention can be readily embodied in various forms, only some specific embodiments are shown in the accompanying drawings and will be described in detail in this specification. It is understood that this specification should be regarded as an exemplary illustration of the principles of the invention and is not intended to limit the invention to what is described herein.

[0043] Therefore, a feature pointed out in this specification is used to describe one feature of one embodiment of the invention, and does not imply that every embodiment of the invention must have the described feature. Furthermore, it should be noted that this specification describes many features. Although certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly stated. Therefore, unless otherwise stated, the described combinations are not intended to be limiting.

[0044] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, inside, outside, left, right, front, back, etc.) used to explain the structure and movement of the various components of the invention are relative rather than absolute. These descriptions are appropriate when these components are in the positions shown in the drawings. If the descriptions of the positions of these components change, these directional indications also change accordingly.

[0045] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided so that the description of the invention will be more complete and fully convey the concept of the exemplary embodiments to those skilled in the art. The drawings are merely illustrative of the invention and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted.

[0046] The preferred embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0047] like Figure 1 As shown, some embodiments of the present invention provide a vehicle frame assembly, including a vehicle frame 10 and a battery pack mounting structure.

[0048] The battery pack mounting structure includes a bracket portion 21, a connecting portion, and a frame assembly 30. The bracket portion 21 passes through the frame 10 and extends to both sides of the frame 10 in the width direction (the width direction of the frame 10 can be seen in the attached diagram). Figure 1(Understanding the left and right directions shown in the diagram), the bracket portion 21 is formed as mounting positions on both sides of the frame 10 in the width direction, and the bracket portion 21 is connected to the connecting portion on both sides of the frame 10 in the width direction. The connecting portion is connected to the frame 10, so that the bracket portion 21 is assembled to the frame 10 through the connecting portion.

[0049] The bracket portion 21 has a first connecting hole 2114 on its mounting position, and the frame assembly 30 has a mating hole 3214. Fasteners pass through the first connecting hole 2114 and the mating hole 3214 to lock the frame assembly 30 to the bracket portion 21. The frame assembly 30 defines a receiving space 3215 for accommodating the battery pack 2.

[0050] In this invention, the bracket portion 21 passes through the frame 10 and extends to both sides of the frame 10 in the width direction. This makes the bracket portion 21 more integral, simple in structure, and has good torsional resistance. When the battery packs 2 on both sides are uneven while the vehicle is in motion, the battery pack 2 with the center of gravity on the upper side tends to press down on its mounting position under the action of gravity, while the mounting position on the other side tends to rise in the opposite direction. This allows the bracket portion 21 to balance the vehicle to a certain extent, reducing the risk of the vehicle's center of gravity shifting to one side and improving the vehicle's driving safety.

[0051] Furthermore, the bracket part 21 itself is not directly connected to the frame 10, but is assembled onto the frame 10 through a connecting part. This helps to reduce the force transmission between the bracket part 21 and the frame 10. On the one hand, the mounting positions on both sides of the bracket part 21 are not obstructed by the frame 10, resulting in better balance. On the other hand, it reduces the risk of damage to the bracket part 21 and the frame 10 under the interaction force, extends the service life of the frame 10 and the bracket part 21, and ensures the driving safety of the vehicle.

[0052] In addition, the frame assembly 30 is fixed on the mounting position of the bracket part 21, and the battery pack 2 is placed in the receiving space 3215 of the frame assembly 30. The frame assembly 30 fixes the battery pack 2 more firmly, reducing the risk of the battery pack 2 slipping. The battery pack 2 transmits force to the frame assembly 30, and then the frame assembly 30 transmits force to the bracket part 21. In this way, the bracket part 21 is subjected to more even force, which is conducive to improving the torsional resistance.

[0053] like Figure 1 and Figure 2 As shown, in some embodiments, the frame 10 has a lower surface and two side surfaces 12, which are arranged opposite to each other and spaced apart. The bracket portion 21 is located below the lower surface and is not connected to each other. The side surfaces 12 opposite to each other each have a connecting portion, which is connected to the opposite side surface 12. This structure is more compact, and the bracket portion 21 does not directly transmit force to the frame 10, resulting in better torsional resistance.

[0054] In some embodiments, the bracket portion 21 includes two lower crossbeams 211 spaced apart from each other. The lower crossbeams 211 extend along the width direction of the frame 10. The top walls 2111 of the portions of the two lower crossbeams 211 located on the same side of the frame 10 jointly define the mounting position. The structure of the lower crossbeams 211 has better torsional resistance and is conducive to the weight reduction design of the bracket portion 21, thereby facilitating the overall weight reduction of the frame assembly and meeting the weight requirements of the vehicle.

[0055] Preferably, the lower crossbeam 211 is also constructed with a reinforcing structure, which is connected to the top wall 2111. This satisfies the structural weight reduction requirement while ensuring the load-bearing capacity of the lower crossbeam 211, reducing the risk of deformation of the lower crossbeam 211 under stress, and thus ensuring the reliability of the battery pack installation structure.

[0056] Furthermore, the top wall 2111 is bent at one end along the width direction of the lower crossbeam 211 to form a first side wall 2112, and at the other end to form a second side wall 2113, so that the cross section of the lower crossbeam 211 is "U" shaped. The reinforcing structure includes the first side wall 2112 and the second side wall 2113, so that the lower crossbeam 211 has better strength and rigidity, and improves the bending capacity of the lower crossbeam 211.

[0057] Furthermore, such as Figure 2 and Figure 3 As shown, the connecting part includes connecting side plates 221. Each lower crossbeam 211 has connecting side plates 221 at both ends in the length direction, so that each lower crossbeam 211 is assembled to the frame 10 through the two connecting side plates 221 provided thereon.

[0058] The connecting side plate 221 includes a main plate 2211, a first flange 2212, a reinforcing corner plate 2213, and a second flange 2214. The first side wall 2112 is located at the end of the top wall 2111 of the lower crossbeam 211 away from the other lower crossbeam 211. The main plate 2211 is located to the side of the first side wall 2112. The lower end of the main plate 2211 is provided with a second connecting hole 2215. Fasteners pass through the second connecting hole 2215 and are connected to the first hole 2115 of the first side wall 2112 to lock the connecting side plate 221 to the lower crossbeam 211. The main board 2211 is folded towards the lower crossbeam 211 at one end facing the frame 10 to form a first flange 2212. A reinforcing angle plate 2213 is disposed at the bend of the main board 2211 and the first flange 2212 and connects the main board 2211 and the first flange 2212. The first flange 2212 and the reinforcing angle plate 2213 are provided with a third connecting hole 2216. Fasteners pass through the third connecting hole 2216 and are connected to the frame 10 to lock the connecting side plate 221 to the frame 10. The lower end of the first flange 2212 is folded to form a second flange 2214. The second flange 2214 has a fourth connecting hole 2217. Fasteners pass through the fourth connecting hole 2217 and are connected to the second hole 2116 of the top wall 2111 to lock the connecting side plate 221 to the lower crossbeam 211. This provides better strength and rigidity for the connecting side plate 221, which helps to improve the connection reliability of the connecting side plate 221.

[0059] Optionally, one of the first connecting hole 2114 and the mating hole 3214 is a circular hole, and the other is an oblong hole. The oblong hole design increases the versatility of the product and reduces the assembly difficulty between the frame assembly 30 and the lower crossbeam 211, making assembly more convenient.

[0060] Optionally, the motherboard 2211 is provided with a weight reduction hole 2218 for weight reduction.

[0061] In some embodiments, such as Figure 4 , Figure 5 and Figure 6 As shown, the frame assembly 30 includes a top cover module 31 and two or more frame modules (the frame modules can be understood by referring to the bottom frame module 32A and the middle frame module 32B). Each frame module defines a receiving space 3215 for accommodating the battery pack 2. The frame modules are stacked and connected sequentially from bottom to top, and the lower frame module is provided with a mating hole 3214. The top cover module 31 is disposed on the upper frame module. In this way, the frame assembly 30 can accommodate more battery packs 2, and the battery packs 2 are placed separately, avoiding mutual squeezing and collision between the battery packs 2, which helps to extend the service life of the battery packs 2.

[0062] Furthermore, the frame module includes a base frame and multiple columns 3213. The base frame includes two parallel and spaced longitudinal beams 3211, with multiple spaced transverse beams 3212 connecting the two longitudinal beams 3211. Columns 3213 are connected to both ends of the two longitudinal beams 3211 along their length. The multiple columns 3213 and the base frame together define an accommodating space 3215. This structure is simple and easy to assemble.

[0063] Furthermore, the longitudinal beam 3211 is hollow and has multiple through holes running along its height. A support tube 32112 is installed inside the through holes. Fasteners can pass through the support tube 32112 and connect to the battery pack 2 to fix the battery pack 2 to the longitudinal beam 3211. This hollow longitudinal beam 3211 facilitates the weight reduction design of the product. At the same time, the support tube 32112 improves the load-bearing capacity of the longitudinal beam 3211 and facilitates the firmness of the connection between the battery pack 2 and the longitudinal beam 3211, reducing the risk of fastener loosening.

[0064] Optionally, such as Figure 7 As shown, bosses 32113 are constructed at both ends of the support tube 32112 in the height direction. Each boss 32113 includes a first stepped surface 32114, a second stepped surface 32115, and a stepped surface 32116 that transitions between the first and second stepped surfaces 32114 and 32115. The stepped surface 32116 contacts the sidewall of the perforation. The first stepped surface 32114 contacts the inner surface of the longitudinal beam 3211 to prevent the support tube 32112 from detaching from the perforation. The second stepped surface 32115 is coplanar with the outer surface of the longitudinal beam 3211. This improves the assembly reliability between the support tube 32112 and the longitudinal beam 3211, avoids the risk of the support tube 32112 falling off, and also improves the flatness of the longitudinal beam 3211 surface, facilitating the assembly of the battery pack 2.

[0065] Optionally, the bottom frame of the bottom frame module 32A also includes a base plate 3216 to improve the support capacity of the bottom frame module 32A for the battery pack 2 and prevent the battery pack 2 from falling off.

[0066] The present invention also provides a vehicle, including: a battery pack 2 and a frame assembly as described in any of the foregoing embodiments, wherein the battery pack 2 is disposed within a receiving space 3215 of the frame assembly 30 of the frame assembly.

[0067] A specific embodiment

[0068] This embodiment provides a vehicle frame assembly, particularly a frame assembly for heavy-duty trucks.

[0069] The frame assembly includes the frame 10 and the battery pack mounting structure. For example, the battery pack mounting structure is a single-unit double-layer battery pack mounting structure. This embodiment features a novel design, simple structure and process, universal modularity, low manufacturing cost, and convenient installation and use, thereby improving the overall torsional resistance of the frame 10.

[0070] In detail, the frame 10 includes two spaced-apart frame longitudinal beams 11, which extend in the front-rear direction. The battery pack 2 is mounted on the opposite sides 12 of the two frame longitudinal beams 11. The battery pack mounting structure includes two lower crossbeams 211, which extend in the left-right direction and are located on the lower wing surface of the frame 10. The ends of the lower crossbeams 211 extend to the corresponding outer side 12 of the frame 10. The upper surfaces of the two ends of the two lower crossbeams 211 on the same side of the frame 10 together form a mounting position for mounting the bottom frame module 32A.

[0071] The upper surface of both ends of the lower crossbeam 211 has evenly distributed first connecting holes 2114. The bottom frame module 32A has mating holes 3214. The first connecting holes 2114 and the mating holes 3214 are connected by bolts to achieve the connection and fixation between the lower crossbeam 211 and the bottom frame module 32A. The bottom frame module 32A has four columns 3213. The two outer sides of the bottom of the columns 3213 adopt L-shaped corner structures 3217 to reinforce the four columns 3213. The bottom frame module 32A is placed on the lower crossbeam 211 from above. The top of the columns 3213 of the bottom frame module 32A has a first connecting structure 3218. The first connecting structure 3218 is U-shaped and has mounting holes for installing the intermediate frame module 32B.

[0072] The battery pack mounting structure also includes connecting side plates 221, which are located on both sides of the two lower crossbeams 211. The connecting side plates 221 include a main board 2211 and a reinforcing angle plate 2213. The main board 2211 adopts an L-shaped structure, and both the main board 2211 and the reinforcing angle plate 2213 have a through third connecting hole 2216. Bolts pass through the third connecting hole 2216 and are locked to the outer surface of the longitudinal beam 11 of the frame. The main board 2211 is connected to the sides and top surface of the lower crossbeams 211 by bolts.

[0073] There are two connecting side plates 221 on each side, and the two connecting side plates 221 are respectively installed on the front and rear sides of the two lower crossbeams 211.

[0074] The battery pack mounting structure also includes an intermediate frame module 32B, which is located above the first connecting structure 3218 of the bottom frame module 32A and is bolted to the first connecting structure 3218. Support tubes 32112 are provided on the longitudinal beams 3211 of the intermediate frame module 32B for mounting the battery pack 2. The intermediate frame module 32B has four uprights 3213, and a second connecting structure 3219 is provided at the top of each of the four uprights 3213. The second connecting structure 3219 is connected to the top cover module 31.

[0075] The battery pack mounting structure also includes a top cover module 31, which is located on the top layer of the frame assembly 30.

[0076] The longitudinal beams 3211 of the bottom frame module 32A and the longitudinal beams 3211 of the middle frame module 32B are respectively provided with support pipes 32112.

[0077] The lower crossbeam 211 adopts a straight U-shape, which has a simple structure and strong bending resistance.

[0078] Although the invention has been described with reference to several typical embodiments, it should be understood that the terminology used is illustrative and exemplary, and not restrictive. Since the invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A vehicle frame assembly, characterized in that, include: A frame having a lower surface and two sides, the two sides being arranged opposite to each other and having a gap; A battery pack mounting structure includes a bracket portion, a connecting portion, and a frame assembly. The bracket portion passes through the vehicle frame and extends to both sides of the vehicle frame in the width direction. The portions of the bracket portion located on both sides of the vehicle frame in the width direction are respectively formed as mounting positions, and the portions of the bracket portion located on both sides of the vehicle frame in the width direction are respectively connected to the connecting portion. The connecting portion is connected to the vehicle frame, so that the bracket portion is assembled to the vehicle frame through the connecting portion. The bracket portions are located on the lower side of the lower surface and are not connected to each other. The two sides facing away from each other each have the connecting portion, and the connecting portion is connected to the opposite side. The bracket portion has a first connecting hole at the mounting position, and the frame assembly has a mating hole. Fasteners pass through the first connecting hole and the mating hole to lock the frame assembly to the bracket portion. The frame assembly defines a receiving space for accommodating a battery pack. The frame assembly includes a top cover module and two or more frame modules, each frame module defining the accommodating space, wherein... The frame modules are stacked and connected from bottom to top, and the top cover module is disposed on the uppermost frame module. The frame module includes a base frame and multiple columns. The base frame includes two parallel and spaced longitudinal beams, and multiple spaced transverse beams are connected between the two longitudinal beams. The two ends of the two longitudinal beams are respectively connected to the columns, and the multiple columns and the base frame together define the accommodating space. The top of the columns of the bottom frame module is used to install the middle frame module; The top of the middle layer frame module is used to connect to the top cover module; The longitudinal beam is hollow and has multiple through holes running along the height direction. A support tube is installed inside the through hole, and fasteners can pass through the support tube and connect to the battery pack to fix the battery pack to the longitudinal beam. The support tube has protrusions at both ends in the height direction. Each protrusion includes a first step surface, a second step surface, and a stepped surface that connects the first step surface and the second step surface. The stepped surface contacts the side wall of the perforation, the first step surface contacts the inner surface of the longitudinal beam to restrict the support tube from leaving the perforation, and the second step surface is coplanar with the outer surface of the longitudinal beam.

2. The frame assembly according to claim 1, characterized in that, The bracket includes two lower crossbeams spaced apart from each other. The lower crossbeams extend along the width direction of the frame, and the top walls of the portions of the two lower crossbeams on the same side of the frame together define the mounting position. The lower crossbeam is also equipped with a reinforcing structure, which is connected to the top wall.

3. The frame assembly according to claim 2, characterized in that, The top wall is bent at one end along the width direction of the lower crossbeam to form a first sidewall, and at the other end to form a second sidewall, so that the cross-section of the lower crossbeam is "U" shaped, and the reinforcing structure includes the first sidewall and the second sidewall.

4. The frame assembly according to claim 3, characterized in that, The connecting part includes connecting side plates, and each lower crossbeam has connecting side plates at both ends along its length, so that each lower crossbeam is assembled to the frame through the two connecting side plates thereon. The connecting side plates include: The main board has a first sidewall located at the end of the top wall of the lower crossbeam away from the other lower crossbeam. The main board is located to the side of the first sidewall. The lower end of the main board is provided with a second connecting hole. Fasteners pass through the second connecting hole and are connected to the first sidewall to lock the connecting side plate to the lower crossbeam. The first flange is formed by folding the end of the main board facing the frame toward the lower crossbeam; A reinforcing angle plate is provided at the bend of the main board and the first flange and connects the main board and the first flange. The first flange and the reinforcing angle plate are provided with a third connecting hole. The fastener passes through the third connecting hole and is connected to the frame to lock the connecting side plate to the frame. The second flange is formed by folding the lower end of the first flange. The second flange has a fourth connecting hole, through which the fastener passes and is connected to the top wall to lock the connecting side plate to the lower crossbeam.

5. The frame assembly according to claim 1, characterized in that, One of the first connecting hole and the mating hole is a circular hole, and the other is an oblong hole.

6. A vehicle, characterized in that, include: Battery pack; The vehicle frame assembly as described in any one of claims 1 to 5, wherein the battery pack is disposed within the receiving space of the frame assembly of the vehicle frame assembly.

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