Roof rail assembly, body frame and vehicle

Abstract

This application provides a roof crossbeam assembly, a vehicle body frame, and a vehicle. The roof crossbeam assembly, installed to a side panel assembly, includes a crossbeam, a connecting portion, and a reinforcing member; the connecting portion is located at the end of the crossbeam. The connecting portion includes a first connecting portion and a second connecting portion, respectively used for connecting to a support tube of the side panel assembly. The crossbeam includes a top wall and a bottom wall disposed opposite each other in the height direction; the first connecting portion is disposed on the top wall, and the second connecting portion is disposed on the bottom wall. The reinforcing member is located between the top wall and the bottom wall in the height direction and connects the top wall and the bottom wall. In this application, the first connecting portion and the second connecting portion are provided at the end of the crossbeam, allowing the crossbeam to be supported by the support tube of the side panel assembly, thereby improving the installation strength of the roof crossbeam assembly. At the same time, by providing the reinforcing member to connect the top wall and the bottom wall, the bending resistance and torsional resistance of the crossbeam itself are improved.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a roof crossbeam assembly, a vehicle body frame, and a vehicle. Background Technology

[0002] With the continuous development of vehicle technology, the requirements for the structural strength of the vehicle body frame are constantly increasing. The roof crossbeam assembly, as a component connecting the two side assemblies, plays a crucial role in the structural strength of the vehicle body frame. Currently, to reduce weight, traditional roof crossbeam assemblies are hollow, resulting in lower structural strength and thus reducing the overall structural strength of the vehicle body frame. Summary of the Invention

[0003] This application provides a roof crossbeam assembly, a vehicle body frame, and a vehicle to solve related technical problems.

[0004] The first aspect of this application provides a roof crossbeam assembly, installed to a side panel assembly, comprising: a crossbeam, a connecting portion, and a reinforcing member; the connecting portion is located at the end of the crossbeam; the connecting portion includes a first connecting portion and a second connecting portion, respectively used for connecting to a support tube of the side panel assembly; the crossbeam includes a top wall and a bottom wall disposed opposite each other in the height direction, the first connecting portion being disposed on the top wall, and the second connecting portion being disposed on the bottom wall; the reinforcing member is located in the height direction between the top wall and the bottom wall and connects the top wall and the bottom wall.

[0005] In this application, the ends of the crossbeam are provided with a first connecting portion and a second connecting portion, allowing the crossbeam to be supported by the support tube of the side assembly, thereby improving the installation strength of the roof crossbeam assembly. Simultaneously, by providing reinforcing members to connect the top and bottom walls, the crossbeam's own bending and torsional resistance is improved. Therefore, the installation structural strength and the self-structural strength of the roof crossbeam assembly of this application are both strengthened, thus comprehensively improving the impact resistance of the vehicle body frame.

[0006] Furthermore, the number of reinforcing members is multiple; with the extension direction of the crossbeam as the first direction, the multiple reinforcing members are spaced apart along the first direction. By providing multiple reinforcing members, the structural strength of the crossbeam itself is further improved.

[0007] Furthermore, the crossbeam includes a front wall and a rear wall disposed opposite to each other in a second direction; wherein, the second direction is perpendicular to the first direction and the height direction; the plurality of reinforcing members include a first reinforcing member and a second reinforcing member; the first reinforcing member connects the front wall and the rear wall; the second reinforcing member is spaced apart from at least one of the front wall and the rear wall.

[0008] The first reinforcing member connects the front and rear walls, supporting the crossbeam in the second direction, thereby improving the crossbeam's ability to withstand impact forces in the second direction. By positioning the second reinforcing member at a distance from at least one of the front and rear walls, the volume of the second reinforcing member can be reduced, thus reducing the weight of the roof crossbeam assembly.

[0009] Furthermore, the first reinforcing member is located in the middle of the crossbeam, and the number of second reinforcing members is set to multiple, distributed on both sides of the first reinforcing member in the first direction. Because the first reinforcing member has high impact resistance, its placement in the middle of the crossbeam allows it to absorb most of the impact force in the second direction, thus improving the impact resistance of the roof crossbeam assembly.

[0010] Furthermore, the top of the front wall protrudes in a direction away from the rear wall to form a front flange, and the top of the rear wall protrudes in a direction away from the front wall to form a rear flange; in the second direction, one end of the first reinforcing member connects the front wall and the front flange, and the other end of the first reinforcing member connects the rear wall and is spaced apart from the rear flange in the height direction.

[0011] One end of the first reinforcing member connects to the front wall and the front flange, which improves the installation strength of the first reinforcing member and allows it to be connected to the crossbeam from multiple locations, thereby improving the crossbeam's impact resistance. The other end of the first reinforcing member is only connected to the rear wall and spaced apart from the rear flange, which reduces the volume of the connection structure required for the first reinforcing member, thus reducing the weight of the second reinforcing member.

[0012] Furthermore, in the second direction, the second reinforcement includes a front surface and a rear surface disposed opposite to each other, the front surface and the rear surface extending close to each other from the bottom wall. The distance between the front surface and the rear surface gradually decreases, thereby further reducing the volume of the second reinforcement and further reducing the weight of the roof beam assembly.

[0013] Furthermore, the reinforcing member includes a first fixing part and a second fixing part; the first fixing part is fixed to the bottom wall; the second fixing part is formed by arching from the first fixing part toward the top wall; the second fixing part is fixed to the top wall. The reinforcing member is Z-shaped, which can provide better fixing strength and improve the structural strength of the beam itself.

[0014] Furthermore, the second fixing part is recessed towards the bottom wall to form a third fixing part, which is fixed to the bottom wall. By forming multiple fixing parts, each fixed to the bottom wall, excessively large unsupported areas are avoided in the structure of the reinforcing member, improving the fixing strength of the reinforcing member and further improving the structural strength of the beam itself.

[0015] Furthermore, taking the extension direction of the crossbeam as the first direction, in a second direction perpendicular to both the first direction and the height direction, the crossbeam includes a front wall and a rear wall disposed opposite to each other; in the second direction, one end of the third fixing part is connected to the rear wall, and the other end is spaced apart from the front wall. When the vehicle suffers a small offset collision, the impact force first reaches the front wall. By positioning the third fixing part, which forms a dent, spaced apart from the front wall, the impact force is prevented from reaching the dented area too quickly, thus improving the impact resistance of the roof crossbeam assembly.

[0016] Furthermore, the crossbeam includes a crossbeam body and a support; the two ends of the crossbeam body are closed, and the support is fixed to the ends of the crossbeam body; the first connecting part is disposed on the crossbeam body; and the second connecting part is disposed on the support. Because the two ends of the crossbeam body are closed, the structural strength of the crossbeam body at both ends is improved. Distributing the first connecting part to the crossbeam body and the second connecting part to the support reduces the manufacturing difficulty of the crossbeam.

[0017] A second aspect of this application provides a vehicle body frame, including: a side panel assembly and the aforementioned roof crossbeam assembly; the side panel assembly includes a side panel outer plate and a support tube; the support tube is installed to one side of the side panel outer plate, and a first connecting portion and a second connecting portion are respectively connected to the support tube. Because the roof crossbeam assembly has good self-structural strength and installation structural strength, the vehicle body frame of this application has good impact resistance.

[0018] A third aspect of this application provides a vehicle including the aforementioned body frame. Because the body frame of this application has good impact resistance, the vehicle of this application has good safety performance.

[0019] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this specification. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this specification and, together with the description, serve to explain the principles of this specification.

[0021] Figure 1 This is a structural diagram of a vehicle frame in an exemplary embodiment of this application; Figure 2 This is a structural diagram of a roof crossbeam assembly according to an exemplary embodiment of this application; Figure 3 yes Figure 2 3D exploded view of the CRRC roof crossbeam assembly; Figure 4 yes Figure 2 Partial structural diagram of the CRRC roof crossbeam assembly; Figure 5 yes Figure 4 Partial exploded 3D view of the CRRC roof crossbeam assembly; Figure 6 This is a partially enlarged view of a vehicle frame in an exemplary embodiment of this application.

[0022] Reference numerals: 1. Vehicle body frame; 2. Roof crossbeam assembly; 10. Crossbeam body; 101. Bracket; 102. Top wall; 11. Bottom wall; 12. Front wall; 13. Front flange; 131. Rear wall; 14. Rear flange; 141. Connecting part; 20. First connecting part; 201. Second connecting part; 202. Reinforcing member; 30. First fixing part; 301. First base plate; 3011. Second base plate; 3012. Second fixing part; 302. First side plate; 3021. Second side plate. 3022; Connecting top plate 3023; First reinforcing member 31; Front flap 311; First part 3111; Second part 3112; Rear flap 312; Second reinforcing member 32; Front surface 321; Rear surface 322; Side wall assembly 40; Side wall outer plate 41; First upright part 411; Second upright part 412; Upper edge 413; Lower edge 414; Support pipe 42; Flange edge 420; First section 421; Second section 422; Middle section 423. Detailed Implementation

[0023] The technical solutions in the embodiments (or "implementations") of this application will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0024] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movement of the components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0025] like Figure 1 As shown, this application provides a vehicle body frame 1, including a roof crossbeam assembly 2 and a side panel assembly 40. There are two side panel assemblies 40 (only one is shown in the figure), and the roof crossbeam assembly 2 is fixed between the two side panel assemblies 40. Each side panel assembly 40 includes a side panel outer plate 41 and a support tube 42. The support tube 42 is installed to one side of the side panel outer plate 41.

[0026] Please refer to the following: Figure 2 and Figure 3 As shown, the roof crossbeam assembly 2 includes a crossbeam 10, a connecting portion 20, and a reinforcing member 30. The connecting portion 20 is located at the end of the crossbeam 10. There are two connecting portions 20 (only one is shown in the figure), which are respectively disposed at both ends of the crossbeam 10 and connected to the side panel assembly.

[0027] The connecting portion 20 includes a first connecting portion 201 and a second connecting portion 202, which are respectively used to connect to the support tube 42 of the side panel assembly 40 to support the crossbeam 10 and improve the installation stability of the roof crossbeam assembly 2. The crossbeam 10 includes a top wall 11 and a bottom wall 12, which are arranged opposite to each other in the height direction H. The first connecting portion 201 is disposed on the top wall 11, and the second connecting portion 202 is disposed on the bottom wall 12. In the height direction H, the crossbeam 10 can obtain support from multiple positions, further improving its installation strength.

[0028] The reinforcing member 30 is located between the top wall 11 and the bottom wall 12 in the height direction H. The reinforcing member 30 connects the top wall 11 and the bottom wall 12. With this arrangement, the bending and torsional resistance of the crossbeam 10 is enhanced. Therefore, the mounting structure strength and the self-structure strength of the roof crossbeam assembly 2 of this application are both enhanced, thereby comprehensively improving the impact resistance of the vehicle body frame 1.

[0029] The extension direction of the crossbeam 10 is defined as the first direction X, and the direction perpendicular to both the first direction X and the height direction H is defined as the second direction Y. The first direction X is the left-right direction of the vehicle frame, and the second direction Y is the front-rear direction of the vehicle frame. The crossbeam 10 includes a front wall 13 and a rear wall 14, which are disposed opposite to each other in the second direction Y. The front wall 13 is provided with a front flange 131. The rear wall 14 is provided with a rear flange 141. The top of the front wall 13 protrudes in a direction away from the rear wall 14 to form the front flange 131. The top of the rear wall 14 protrudes in a direction away from the front wall 13 to form the rear flange 141.

[0030] The crossbeam 10 includes a crossbeam body 101 and a support 102. The two ends of the crossbeam body 101 are closed to improve its structural strength. The support 102 is fixed to the end of the crossbeam body 101. A first connecting part 201 is provided on the crossbeam body 101. A second connecting part 202 is provided on the support 102.

[0031] The first connecting part 201 and the second connecting part 202 are set in different components. The first connecting part 201 is formed during the manufacturing process of the main body 101 of the crossbeam, and the second connecting part 202 is formed during the manufacturing process of the bracket 102, which reduces the manufacturing difficulty of the crossbeam 10.

[0032] There are multiple reinforcing members 30. The multiple reinforcing members 30 are spaced apart along the first direction X. By setting multiple reinforcing members 30, the top wall 11 and bottom wall 12 of the crossbeam 10 are connected from multiple positions, which further improves the structural strength of the crossbeam 10 itself.

[0033] Please refer to the following: Figure 4 As shown, the plurality of reinforcing members 30 includes a first reinforcing member 31 and a second reinforcing member 32. The first reinforcing member 31 is located in the middle of the crossbeam 10. The number of second reinforcing members 32 may be multiple (only one is shown in the figure), and they are distributed on both sides of the first reinforcing member 31 in the first direction X. The first reinforcing member 31 connects the front wall 13 and the rear wall 14. The second reinforcing member 32 is spaced apart from at least one of the front wall 13 and the rear wall 14.

[0034] The first reinforcing member 31 connects the front wall 13 and the rear wall 14, supporting the crossbeam 10 in the second direction Y, thereby improving the crossbeam 10's ability to withstand impact forces in the second direction Y. Simultaneously, since the first reinforcing member 31 is located in the middle of the crossbeam 10, it can absorb most of the impact forces in the second direction Y. Based on this, the second reinforcing member 32 is positioned spaced apart from the front wall 13 and the rear wall 14. This satisfies the impact resistance requirement of the roof crossbeam assembly 2 while reducing the volume of the second reinforcing member 32, thus reducing the overall weight of the roof crossbeam assembly 2.

[0035] In the second direction Y, one end of the first reinforcing member 31 is connected to the front wall 13 and the front flange 131, and the other end of the first reinforcing member 31 is connected to the rear wall 14 and is spaced apart from the rear flange 141 in the height direction.

[0036] One end of the first reinforcing member 31 is connected to both the front wall 13 and the front flange 131, increasing the number of connection points between the first reinforcing member 31 and the crossbeam 10 and improving its structural strength. When subjected to impact, part of the impact force is dispersed along the second direction Y through the connection point between the front wall 13 and the first reinforcing member 31, and part of the impact force is dispersed along the height direction H through the connection point between the front flange 131 and the first reinforcing member 31, further improving the impact resistance of the roof crossbeam assembly 2.

[0037] Since the first reinforcing member 31 connects the front wall 13 and the front flange 131 at one end, it ensures the impact resistance of the roof beam assembly 2. At this time, by connecting the other end of the first reinforcing member 31 only to the rear wall 14 and spaced apart from the rear flange 141, the volume of the connection structure required for the first reinforcing member 31 can be reduced, thereby reducing the weight of the second reinforcing member 32.

[0038] The second reinforcing member 32 includes a front surface 321 and a rear surface 322, which are disposed opposite to each other in the second direction Y. The front surface 321 and the rear surface 322 extend close to each other from the bottom wall 12. The distance between the front surface 321 and the rear surface 322 gradually decreases, which further reduces the volume of the second reinforcing member 32, thereby further reducing the weight of the roof beam assembly 2.

[0039] Please refer to the following: Figure 5 As shown, the reinforcing member 30 includes a first fixing part 301 and a second fixing part 302. The first fixing part 301 is fixed to the bottom wall 12. The second fixing part 302 is formed by arching from the first fixing part 301 toward the top wall 11. The second fixing part 302 is fixed to the top wall 11.

[0040] The reinforcing member 30 is shaped like a "Z", which provides better fixing strength, improves the structural strength of the crossbeam 10, and further enhances its bending and torsional resistance. Specifically, the first fixing part 301 includes a first base plate 3011 and a second base plate 3012. The second fixing part 302 includes a first side plate 3021, a second side plate 3022, and a connecting top plate 3023.

[0041] The first base plate 3011 and the second base plate 3012 are fixed to the bottom wall 12. The connecting top plate 3023 is fixed to the top wall 11. When the roof crossbeam assembly 2 is subjected to pressure from the top, the connecting top plate 3023 bears the main pressure. The first side plate 3021 and the second side plate 3022 located on both sides of the connecting top plate 3023 support the connecting top plate 3023 and distribute the force to the bottom wall 12 through the first base plate 3011 and the second base plate 3012 to prevent the roof crossbeam assembly 2 from bending.

[0042] Both the first reinforcing member 31 and the second reinforcing member 32 have the structure described above. Unlike the second reinforcing member 32, the first reinforcing member 31, which needs to connect the front wall 13 and the rear wall 14, is further provided with a front flap 311 and a rear flap 312 at both ends. The front flap 311 includes a first part 3111 and a second part 3112. The first part 3111 is fixedly connected to the front wall 13, and the second part 3112 is fixedly connected to the front flange 131. The rear flap 312 is fixedly connected to the rear wall 14.

[0043] Since the width of the first reinforcing member 31 in the first direction X is greater than that of the second reinforcing member 32, the second fixing part 302 of the first reinforcing member 31 is recessed downward to form the third fixing part 303. By providing multiple fixing parts and fixing them to the bottom wall 12 respectively, the structure of the reinforcing member 30 is prevented from having an excessively large suspended area, thereby improving the fixing strength of the reinforcing member 30 and further improving the structural strength of the crossbeam 10 itself.

[0044] In the second direction Y, one end of the third fixing part 303 is connected to the rear wall 14, and the other end is spaced apart from the front wall 13. When the vehicle suffers a small offset collision, the impact force reaches the front wall 13 first. By setting the third fixing part 303, which forms a dent, to be spaced apart from the front wall 13, the impact force is prevented from reaching the dented area too quickly, thus improving the impact resistance of the roof beam assembly.

[0045] Specifically, the third fixing part 303 extends to the rear flap 312 and is fixed to the rear wall 14 via the rear flap 312. The third fixing part 303 is spaced apart from the front flap 311 so that there is a solid area between the connecting top plate 3023 and the third fixing part 303 and the front flap 311, thereby ensuring the impact resistance of the end of the first reinforcing member 31 connected to the front wall 13.

[0046] Please refer to the following: Figure 1 and Figure 6 As shown, the side panel 41 includes a first vertical portion 411 and a second vertical portion 412. A support tube 42 extends from the first vertical portion 411 to the second vertical portion 412. Because the support tube 42 extends from the first vertical portion 411 to the second vertical portion 412, its length is increased, thereby improving the impact resistance of the support tube 42 and enhancing the overall impact resistance of the vehicle frame. The first vertical portion 411 can be the lower structure of the vehicle's A-pillar, and the second vertical portion 412 can be the vehicle's B-pillar.

[0047] The support tube 42 is bent to form a first segment 421, a second segment 422, and an intermediate segment 423 connecting the first segment 421 and the second segment 422. The first segment 421 extends from the first upright portion 411 to the intermediate segment 423. The second segment 422 extends from the intermediate segment 423 to the second upright portion 412. The curvature of the intermediate segment 423 is greater than that of the first segment 421 and the second segment 422.

[0048] The support tube 42 has a flange edge 420 on its inner side after bending, extending from the starting end of the first section 421 to the middle section 423. The flange edge 420 connects the first upright part 411 and the outer side panel 41, and can withstand the impact of a small offset collision. When the first upright part 411 is impacted, the impact force can be dispersed to the support tube 42 and transmitted to the outer side panel 41 to further disperse the impact force, thereby improving the impact resistance of the vehicle frame.

[0049] The flange edge 420 is connected to the lower edge 414 of the side outer plate 41 and the first vertical part 411 respectively, for dispersing impact. In the direction from the first section 421 to the middle section 423, the width of the end of the flange edge 420 gradually decreases until it transitions with the support pipe 42.

[0050] Because of the bending design of the support tube 42, the width of the end of the flange edge 420 is set to gradually decrease in the middle section 423 with the largest curvature and finally reduce to zero. This ensures that the curvature of the end of the flange edge 420 and the middle section 423 are the same. During the bending of the support tube 42 in the manufacturing stage, wrinkles are avoided in the flange edge 420 due to bending, which improves the overall structural strength of the support tube 42 and further enhances the impact resistance of the vehicle frame. The second connecting part 202 can be connected to the transition between the flange edge 420 and the support tube 42 to disperse the impact force of the flange edge 420 and further improve the impact resistance of the vehicle frame.

[0051] The second connecting portion 202 can extend downward and connect to the lower edge 414 of the side outer panel 41. The first connecting portion 201 can connect to the upper edge 413 of the side outer panel 41. The side outer panel 41, the first connecting portion 201 and the second connecting portion 202 form a covering structure to accommodate the support tube 42, so that the force on the support tube 42 can be distributed from multiple points, improving the impact resistance of the vehicle frame.

[0052] In the left-right direction of the vehicle frame, i.e., in the first direction X, the projection of the second connecting portion 202 at least partially covers the transition between the flange edge 420 and the support tube 42. With this arrangement, the impact force borne by the support tube 42 can also be dispersed through the second connecting portion 202, thereby further improving the impact resistance of the vehicle frame.

[0053] This application also provides a vehicle including the aforementioned body frame 1. Because the body frame 1 of this application has good impact resistance, the vehicle of this application has good safety performance.

[0054] It should be noted that the technical solutions or features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A roof crossbeam assembly, installed to a side panel assembly, characterized in that, include: A crossbeam, a connecting portion, and a reinforcing member; the connecting portion is located at the end of the crossbeam; The connecting part includes a first connecting part and a second connecting part, which are respectively used to connect to the support tube of the side wall assembly; the crossbeam includes a top wall and a bottom wall arranged opposite each other in the height direction, the first connecting part is disposed on the top wall, and the second connecting part is disposed on the bottom wall; The reinforcing member is located between the top wall and the bottom wall in the height direction and connects the top wall and the bottom wall.

2. The roof crossbeam assembly according to claim 1, characterized in that, The number of the reinforcing members is multiple; with the extension direction of the crossbeam as the first direction, the multiple reinforcing members are spaced apart along the first direction.

3. The roof crossbeam assembly according to claim 2, characterized in that, The crossbeam includes a front wall and a rear wall disposed opposite each other in a second direction; wherein, the second direction is perpendicular to the first direction and the height direction; The plurality of reinforcing members include a first reinforcing member and a second reinforcing member, the first reinforcing member connecting the front wall and the rear wall; the second reinforcing member being spaced apart from at least one of the front wall and the rear wall.

4. The roof crossbeam assembly according to claim 3, characterized in that, The first reinforcing member is located in the middle of the crossbeam, and the number of the second reinforcing members is set to multiple, which are distributed on both sides of the first reinforcing member in the first direction.

5. The roof crossbeam assembly according to claim 3, characterized in that, The top of the front wall protrudes in a direction away from the rear wall to form a front flange, and the top of the rear wall protrudes in a direction away from the front wall to form a rear flange; In the second direction, one end of the first reinforcing member is connected to the front wall and the front flange, and the other end of the first reinforcing member is connected to the rear wall and spaced apart from the rear flange in the height direction.

6. The roof crossbeam assembly according to claim 3, characterized in that, In the second direction, the second reinforcement includes a front surface and a rear surface disposed opposite to each other, the front surface and the rear surface extending close to each other from the bottom wall.

7. The roof crossbeam assembly according to claim 1, characterized in that, The reinforcing member includes a first fixing part and a second fixing part; the first fixing part is fixed to the bottom wall; the second fixing part is formed by arching from the first fixing part toward the top wall; the second fixing part is fixed to the top wall.

8. The roof crossbeam assembly according to claim 7, characterized in that, The second fixing part is recessed towards the bottom wall to form a third fixing part, and the third fixing part is fixed to the bottom wall.

9. The roof crossbeam assembly according to claim 8, characterized in that, With the extension direction of the crossbeam as the first direction, in a second direction perpendicular to both the first direction and the height direction, the crossbeam includes a front wall and a rear wall disposed opposite to each other; In the second direction, one end of the third fixing part is connected to the rear wall, and the other end is spaced apart from the front wall.

10. The roof crossbeam assembly according to claim 1, characterized in that, The crossbeam includes a crossbeam body and a support; the two ends of the crossbeam body are closed, and the support is fixed to the end of the crossbeam body; the first connecting part is disposed on the crossbeam body; and the second connecting part is disposed on the support.

11. A vehicle frame, characterized in that, include: The side panel assembly and the roof beam assembly as described in any one of claims 1-10; the side panel assembly includes a side panel outer plate and a support tube; the support tube is installed on one side of the side panel outer plate, and the first connecting portion and the second connecting portion are respectively connected to the support tube.

12. A vehicle, characterized in that, include: The vehicle frame as described in claim 11.

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