Vehicle body structure and vehicle

Abstract

The utility model relates to the technical field of vehicle production and manufacturing, in particular to a vehicle body structure and a vehicle. The supporting column assembly at least forms a cavity structure at the supporting column, the first supporting beam, the second supporting beam and the intersection part, so that the stress of the connecting part can be transferred to the supporting column, the first supporting beam and the second supporting beam, the stress concentration at the connecting part is reduced, the stress at the connecting part is more uniform, the rigidity and durability of the whole vehicle are improved, and the service life of the whole vehicle is prolonged. The strength of the lap joint structure is fully guaranteed, and the risk that the center of the supporting column assembly is broken due to concentrated stress is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle production and manufacturing, and in particular to a vehicle body structure and a vehicle. Background Art

[0002] With the popularity of new energy vehicles and the travel needs of families, more space is needed to meet the travel needs of large families with multiple children. The automotive products on the market are also more focused on the product characteristics of comfort, intelligence, and large space. Based on such diversified travel scenarios in the market, a 6-seater large SUV with 2+2+2 seats was launched. Compared with the 5-seater SUV on the same platform, it is heavier, so its modal and overall rigidity are lower than the 5-seater car on the same platform. However, in order to provide a better experience and meet higher performance target requirements, the same structural form can no longer meet its torsional stiffness and modal targets. Since the connection of the D-pillar is prone to stress concentration and large displacement deformation, this area is highly sensitive to the modal and torsional stiffness of the whole vehicle, so the main direction of structural optimization is determined, and the joint on the D-pillar needs to be optimized and enhanced. Utility Model Content

[0003] The purpose of the present application is to provide a vehicle body structure and a vehicle.

[0004] The present application provides a vehicle body structure, including a support column assembly, wherein the support column assembly includes a support column, a first support beam and a second support beam, the first support beam extends along the first direction, the second support beam is extended along the second direction, and the support column is extended along a third direction; at the intersection of the first direction, the second direction and the third direction, the support column, the first support beam and the second support beam are interconnected to form an intersection, and a cavity structure is formed at least among the support column, the first support beam, the second support beam and the connection portion; the first direction is perpendicular to the second direction to form a first plane, and the third direction is arranged at an angle to the first plane.

[0005] In an exemplary embodiment of the present application, the vehicle body structure includes a second reinforcing plate; the support column assembly includes an inner plate, a support plate and a first reinforcing plate stacked in sequence, the first reinforcing plate and the support plate are in contact with each other, the cavity structure is formed between the inner plate and the support plate, the first reinforcing plate and the support plate are connected to form a first connecting portion, the first reinforcing plate extends in the first direction and is connected to the second reinforcing plate to form a second connecting portion, the inner plate and the support plate are connected to form a third connecting portion, and the first connecting portion, the second connecting portion and the third connecting portion are located on the peripheral side of the cavity structure.

[0006] In an exemplary embodiment of the present application, the first reinforcing plate and the supporting plate fit together and protrude outward to form a protruding portion, and the inner plate is recessed inward to form a recessed portion, and a cavity structure is formed by the mutual cooperation of the protruding portion and the recessed portion.

[0007] In an exemplary embodiment of the present application, in the same direction, the width of the support plate is smaller than the width of the inner plate and the first reinforcing plate, the inner plate forms a first flange, the first reinforcing plate forms a second flange, the width of the first flange is greater than the second flange, the first flange and the second flange abut against each other and are welded; the second flange forms spaced serrations, each of the serrations overlaps and is welded with the first flange respectively.

[0008] In an exemplary embodiment of the present application, the second reinforcement plate is provided with a mounting hole, and the mounting hole includes a first hole portion and a second hole portion that are interconnected, and the diameter of the first hole portion is larger than the diameter of the second hole portion; the vehicle body structure also includes a luggage rack assembly, the luggage rack and a locking member, the diameter of the locking member is smaller than the diameter of the second hole portion, the locking member can move in the first hole portion and the second hole portion, and the locking member is arranged in the second hole portion.

[0009] In an exemplary embodiment of the present application, the length of the first reinforcing plate extending in the first direction is greater than the length of the support plate and the inner plate to form a connecting portion, an adhesion surface is formed on the connecting portion, and an adhesive portion is arranged on the adhesion surface to connect the second reinforcing plate and the first reinforcing plate.

[0010] In an exemplary embodiment of the present application, the support column assembly protrudes outward to form a first bending portion, the second reinforcement plate protrudes outward to form a second bending portion, the first bending portion and the second bending portion are arranged correspondingly, and the adhesion surface includes a first adhesion surface and a second adhesion surface, and the first adhesion surface and the second adhesion surface are respectively located on both sides of the first bending portion.

[0011] In an exemplary embodiment of the present application, the first reinforcing plate further includes a main body portion, the main body portion is connected to the adhesion surface, and in a direction from the inside of the vehicle body structure to the outside of the vehicle body structure, a height of the main body portion is greater than a height of the adhesion surface.

[0012] In an exemplary embodiment of the present application, the inner plate forms a solder hole, the solder hole is used to be filled with solder, and the solder abuts against the support plate so that the support plate and the inner plate can be welded.

[0013] The present application also provides a vehicle, comprising the vehicle body structure.

[0014] A vehicle body structure and a vehicle according to the present application scheme have the following beneficial effects: a support column assembly forms a cavity structure at least at the support column, the first support beam, the second support beam and the intersection, so that the force of the connection part can be transferred to the support column, the first support beam and the second support beam, reducing the stress concentration at the connection part, making the force here more uniform, improving the rigidity and durability of the whole vehicle, fully ensuring the strength of the overlap structure here, and reducing the risk of fracture at the center of the support column assembly due to concentrated force.

[0015] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by the practice of the present application.

[0016] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a structural schematic diagram of a support column assembly in an embodiment of the utility model;

[0019] Figure 2 It is an exploded schematic diagram of a support column assembly in an embodiment of the utility model;

[0020] Figure 3 It is a schematic diagram of the assembly of the support plate and the first reinforcing plate in the embodiment of the utility model;

[0021] Figure 4 This is a bottom view of the support column assembly in the embodiment of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the vehicle body structure in an embodiment of the utility model.

[0023] Description of reference numerals:

[0024] 10. Support column assembly; 11. Support column; 12. First support beam; 13. Second support beam; 14. Cavity structure; 15. Intersection; 101. Inner plate; 1011. First flange; 1012. Solder hole; 102. Support plate; 103. First reinforcing plate; 1031. Second flange; 10311. Sawtooth; 1032. Connecting portion; 1033. Adhesion surface; 10331. First adhesion surface; 10332. Second adhesion surface; 10 34. Main body; 110. First connecting portion; 120. Second connecting portion; 130. Third connecting portion; 16. First bending portion; 20. Second reinforcing plate; 21. Second bending portion; 22. Mounting hole; 221. First hole portion; 222. Second hole portion; 30. Luggage rack assembly; 31. Luggage rack; 32. Locking member; 41. Protrusion; 42. Recessed portion; 50. Structural rib; X1. First direction; X2. Second direction; X3. Third direction. DETAILED DESCRIPTION

[0025] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be more comprehensive and complete and fully convey the concept of the example embodiments to those skilled in the art.

[0026] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present application. However, those skilled in the art will appreciate that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, known methods, devices, realizations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0027] The present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be understood as limiting the present application.

[0028] It should be noted that the "multiple" mentioned in this article refers to two or more. "And / or" describes the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0029] With the popularity of new energy vehicles and the travel needs of families, more space is needed to meet the travel needs of large families with multiple children. The automotive products on the market are also more focused on the product characteristics of comfort, intelligence, and large space. Based on such diversified travel scenarios in the market, a 6-seater large SUV with 2+2+2 seats was launched. Compared with the 5-seater SUV on the same platform, it is heavier, so its modal and overall rigidity are lower than the 5-seater car on the same platform. However, in order to provide a better experience and meet higher performance target requirements, the same structural form can no longer meet its torsional stiffness and modal targets. Since the connection of the D-pillar is prone to stress concentration and large displacement deformation, this area is highly sensitive to the modal and torsional stiffness of the whole vehicle, so the main direction of structural optimization is determined, and the joint on the D-pillar needs to be optimized and enhanced.

[0030] In order to solve the above technical problems, refer to Figure 1 As shown, the present application provides a vehicle body structure, including a support column assembly 10, the support column assembly 10 includes a support column 11, a first support beam 12 and a second support beam 13, the first support beam 12 extends along a first direction X1, the second support beam 13 is extended along a second direction X2, and the support column 11 is extended along a third direction X3; at the intersection of the first direction X1, the second direction X2 and the third direction X3, the support column 11, the first support beam 12 and the second support beam 13 are interconnected to form an intersection 15, and a cavity structure 14 is formed at least between the support column 11, the first support beam 12, the second support beam 13 and the intersection 15; the first direction X1 is perpendicular to the second direction X2, and the third direction X3 is on different planes from the first direction X1 and the second direction X2, respectively. The support column assembly 10 forms a cavity structure 14 at least at the positions of the support column 11, the first support beam 12, the second support beam 13 and the intersection 15, so that the force at the intersection 15 can be transferred to the support column 11, the first support beam 12 and the second support beam 13, reducing the stress concentration at the intersection 15, making the force here more uniform, improving the rigidity and durability of the entire vehicle, fully ensuring the strength of the overlap structure here, and reducing the risk of fracture due to concentrated force at the center of the support column assembly 10.

[0031] In some embodiments, reference Figure 1 As shown, the first reinforcing plate 103 and the supporting plate 102 are fitted to each other and protrude outward to form a protrusion 41, and the inner plate 101 is recessed inward to form a recessed portion 42. The cavity structure 14 is formed by the mutual cooperation of the protrusion 41 and the recessed portion 42. The cavity structure 14 can extend in the first direction X1, the second direction X2 and the third direction X3 according to actual conditions.

[0032] In some embodiments, a three-way sheet metal structure is provided at the position of the D-pillar for both the five-seat and six-seat models to connect the C-pillar and support the roof and body structure. In this application, the support column assembly 10 can be a three-way sheet metal structure of the D-pillar, and of course, it can also be a three-way sheet metal structure of the A-pillar. The support column assembly 10 can be properly deformed to form a three-way sheet metal structure that can also be used as the B-pillar and C-pillar.

[0033] In some embodiments, reference Figure 1 As shown, taking the three-way sheet metal structure of the D-pillar as an example, the first support beam 12 is used to support the roof structure in the first direction X1, the second support beam 13 is used to support the roof structure in the second direction X2, and the support column 11 is used to support the first support beam 12, the second support beam 13 and the body sheet metal in the third direction X3. Thus, a passenger compartment is formed inside the body structure and the internal safety of the passenger compartment is protected.

[0034] In some embodiments, reference Figure 1 As shown, the first direction X1 is perpendicular to the second direction X2 to form a first plane, the first plane is the roof plane, the third direction X3 is perpendicular to the first plane or has other angles, generally, the lower side of the support column 11 extends toward the outside of the vehicle body structure relative to the upper side, wherein the inside of the vehicle body structure faces the passenger compartment, and the outside of the vehicle body structure faces away from the passenger compartment.

[0035] In some embodiments, reference Figures 1 to 3 As shown, the vehicle body structure includes a second reinforcing plate 20; the support column assembly 10 includes an inner plate 101, a support plate 102 and a first reinforcing plate 103 which are stacked in sequence, the first reinforcing plate 103 and the support plate 102 are fitted together, a cavity structure 14 is formed between the inner plate 101 and the support plate 102, the first reinforcing plate 103 and the support plate 102 are connected to form a first connecting portion 110, the first reinforcing plate 103 extends in a first direction X1 and is connected to the second reinforcing plate 20 to form a second connecting portion 120, the inner plate 101 and the support plate 102 are connected to form a third connecting portion 130, and the first connecting portion 110, the second connecting portion 120 and the third connecting portion 130 are located on the peripheral side of the cavity structure 14. The support plate 102 is used to be arranged between the first reinforcing plate 103 and the back plate to further strengthen the structure. Due to the cavity structure 14, the two-layer sheet metal structure will greatly reduce the structural strength of the support column assembly 10 before it is used. Therefore, the support plate 102 is arranged so that the first reinforcing plate 103 and the support plate 102 are attached. By arranging the first connecting part 110, the second connecting part 120 and the third connecting part 130 on the peripheral side of the cavity structure 14, the force is transferred to the first connecting part 110, the second connecting part 120 and the third connecting part 130.

[0036] In some embodiments, after adding the support plate 102 between the inner plate 101 and the reinforcement plate, the vehicle modal is improved by about 1HZ, and the torsional stiffness is also significantly improved overall. At the same time, the support plate 102 also integrates the function of the tailgate stay reinforcement plate. The first reinforcement plate 103 has a mounting hole, and through the two-layer welding on the mounting surface of the first reinforcement plate 103 and the back-to-back connection of the support plate 102, it is equivalent to increasing the thickness of the mounting point of the tailgate stay, and fully strengthening its mounting point stiffness. It is actually proved that the intersection 15 is very sensitive to the performance of the whole vehicle. At the same time, the function of the tailgate stay reinforcement plate is integrated through the support plate 102, which is more convenient and conducive to the enhancement of the mounting point rigidity, and reduces the number of parts.

[0037] In some embodiments, reference Figure 1 As shown, taking the support column assembly 10 as a three-way sheet metal structure of a D-column as an example, the second reinforcement plate 20 is a sheet metal structure extending from the C-column toward the D-column along the first direction X1.

[0038] In some embodiments, the first reinforcing plate 103 and the support plate 102 are welded to form a first connection portion 110; the first reinforcing plate 103 extends in the first direction X1 and is welded to the second reinforcing plate 20 to form a second connection portion 120; and / or, the first reinforcing plate 103 extends in the first direction X1 and is bonded to the second reinforcing plate 20 to form a second connection portion 120; the inner plate 101 and the support plate 102 are welded to form a third connection portion 130. In other embodiments, the inner plate 101, the support plate 102 and the first reinforcing plate 103 are welded. The mutual structure of welding and bonding can increase the connection strength between the second reinforcing plate 20 and the first reinforcing plate 103, and the structural strength of the support column assembly 10 can be increased by welding the inner plate 101 and the support plate 102, and the support plate 102 and the first reinforcing plate 103 in pairs, or the structural strength of the support column assembly 10 can be increased by three-layer welding of the inner plate 101, the support plate 102 and the first reinforcing plate 103.

[0039] In some embodiments, reference Figure 2 As shown, the support column assembly 10 is formed by stamping, and the support column assembly 10 protrudes outward to form a first bending portion 16. The first bending portion 16 is correspondingly formed on the first reinforcing plate 103, the support plate 102 and the inner plate 101. After being bent by the first bending portion 16, the support column assembly 10 extends on the roof plane and on the window plane respectively to connect the roof structure and the window structure.

[0040] In some embodiments, reference Figures 1 to 3As shown, in the same direction, the width of the support plate 102 is smaller than the width of the inner plate 101 and the first reinforcing plate 103, the inner plate 101 forms a first flange 1011, the first reinforcing plate 103 forms a second flange 1031, the width of the first flange 1011 is larger than the second flange 1031, and the first flange 1011 and the second flange 1031 abut against each other. The support plate 102 can be encapsulated in the inner plate 101 and the first reinforcing plate 103 by the first flange 1011 and the second flange 1031 abut against each other and then welded, thereby increasing the structural strength of the support column 11 structure while increasing the structural beauty of the support column 11.

[0041] In some embodiments, reference Figures 1 to 3 As shown, the second flange 1031 forms spaced serrations 10311, and each serration 10311 overlaps and is welded to the first flange 1011. By providing a plurality of spaced serrations 10311, the number of welding points is increased. Compared with forming a surface weld on the entire flange, the welding surface formed by the plurality of welding points can avoid the risk of welding empty packages, thereby ensuring the welding quality.

[0042] In some embodiments, reference Figures 1 to 3 As shown, the length of the first reinforcing plate 103 extending in the first direction X1 is greater than the length of the support plate 102 and the inner plate 101 to form a connecting portion 1032, and an adhesive surface 1033 is formed on the connecting portion 1032. An adhesive portion is provided on the adhesive surface 1033 to connect the second reinforcing plate 20 and the first reinforcing plate 103. Of course, the first reinforcing plate 103 is extended to form a connecting portion 1032, which will be supported by other structures of the body sheet metal. The adhesive surface 1033 is formed on the side facing the second reinforcing plate. It is not limited here whether the second reinforcing plate 20 is set inside or the first reinforcing plate 103 is set inside. The adhesive surface 1033 is also set according to the actual situation. The adhesive portion is formed by applying glue on the adhesive surface 1033, and has a high viscosity, thereby further increasing the connection strength between the second reinforcing plate 20 and the first reinforcing plate 103 on the basis of welding.

[0043] In some embodiments, reference Figure 1 and Figure 2 As shown, the second reinforcing plate 20 has a second bending portion 21 protruding outward, the first bending portion 16 and the second bending portion 21 are arranged correspondingly, and the adhesion surface includes a first adhesion surface 10331 and a second adhesion surface 10332, and the first adhesion surface 10331 and the second adhesion surface 10332 are respectively located on both sides of the first bending portion 16, thereby increasing the area of ​​the adhesion surface 1033, and after the adhesion surface 1033 is formed on both the window plane and the roof plane, it can have an adhesion effect on different planes.

[0044] In some embodiments, reference Figure 1As shown, the first reinforcing plate 103 further includes a main body 1034, the main body 1034 is connected to the adhesion surface 1033, and in the direction from the inside of the vehicle body structure to the outside of the vehicle body structure, the height of the main body 1034 is greater than the height of the adhesion surface 1033. After the first reinforcing plate 103 and the second reinforcing plate 20 are connected through the adhesion surface 1033, the first reinforcing plate 103 and the second reinforcing plate 20 have the same plane, which is convenient for subsequent assembly.

[0045] In some embodiments, reference Figure 3 and Figure 4 As shown, the inner plate 101 forms a solder hole 1012, and the solder hole 1012 is filled with solder, and the solder abuts against the support plate 102, so that the support plate 102 and the inner plate 101 can be welded. Since the inner plate 101, the support plate 102 and the first reinforcing plate 103 are welded together through three layers or two layers, and since the support plate 102 needs to be welded to the inner plate 101, but the welding gun cannot be inserted between the inner plate 101 and the first reinforcing plate 103, it is necessary to form a solder hole 1012 on the inner plate 101, and then melt the solder on the overlapping surface of the support plate 102 and the inner plate 101 to weld the support plate 102 and the inner plate 101.

[0046] In some embodiments, reference Figure 5 As shown, the second reinforcing plate 20 is provided with a mounting hole 22, and the mounting hole 22 includes a first hole portion 221 and a second hole portion 222 that are interconnected, and the diameter of the first hole portion 221 is larger than the diameter of the second hole portion 222; the vehicle body structure also includes a luggage rack assembly 30, the luggage rack 31 and a locking member 32, the diameter of the locking member 32 is smaller than the diameter of the second hole portion 222, the locking member 32 can move in the first hole portion 221 and the second hole portion 222, and the locking member 32 is arranged in the second hole portion 222. The locking member 32 is first put in through the first hole portion 221, and then pushed to one side, and enters the second hole portion 222 for installation and tightening. Such a design can make it more convenient to install the luggage rack 31, and the luggage rack 31 needs to meet the requirement that the displacement deformation amount cannot exceed 5mm under a certain load, and can have a better load-bearing effect.

[0047] In some embodiments, reference Figure 5 As shown, a structural rib 50 is provided between the second reinforcing plate 20 and the luggage rack 31, specifically provided on the peripheral side of the second hole portion 222, to increase the rigidity near the connection. At the same time, a mounting hole 22 for a sound insulation rubber block is also provided on the second reinforcing plate 20, which is inserted through a snap and then filled with foam after painting to fill the side wall and the cavity structure 14, which can effectively reduce the propagation of noise near the connection portion 1032 and improve the overall NVH (Noise, Vibration, Harshness) performance.

[0048] The present application also provides a vehicle, including a vehicle body structure. The vehicle body structure includes a support column assembly 10, and the support column assembly 10 forms a cavity structure 14 at the position of the connection portion 1032, so that the force of the connection portion 1032 can be transferred to the support column 11, the first support beam 12 and the second support beam 13, thereby reducing the stress concentration at the connection portion 1032. By arranging the first connection portion 110, the second connection portion 120 and the third connection portion 130 on the peripheral side of the cavity structure 14 to respectively connect the inner plate 101, the support plate 102, the first reinforcement plate 103 and the second reinforcement plate 20, the force is transferred to the first connection portion 110, the second connection portion 120 and the third connection portion 130. Make the force here more uniform, improve the rigidity and durability of the whole vehicle, fully ensure the strength of the overlap structure here, and reduce the risk of fracture at the center of the support column assembly 10 due to concentrated force.

[0049] In this application, unless otherwise clearly specified and limited, the terms "disposed (provided with)", "connected" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0050] In the description of this specification, the description of reference terms such as "some embodiments" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment are included in at least one embodiment of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0051] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application. Therefore, any changes or modifications made in accordance with the claims and description of the present application should fall within the scope of the patent of this application.

Claims

1. A vehicle body structure, characterized in that: include: A support column assembly, the support column assembly comprising a support column, a first support beam and a second support beam, the first support beam extending along a first direction, the second support beam extending along a second direction, and the support column extending along a third direction; at the intersection of the first direction, the second direction and the third direction, the support column, the first support beam and the second support beam are interconnected to form an intersection, and a cavity structure is formed at least among the support column, the first support beam, the second support beam and the intersection; the first direction is perpendicular to the second direction, and the third direction is on a different plane from the first direction and the second direction, respectively.

2. The vehicle body structure according to claim 1, characterized in that: The vehicle body structure includes a second reinforcement plate; The support column assembly includes an inner plate, a support plate and a first reinforcing plate which are stacked in sequence, the first reinforcing plate and the support plate are in contact with each other, the cavity structure is formed between the inner plate and the support plate, the first reinforcing plate and the support plate are connected to form a first connection part, the first reinforcing plate extends in the first direction and is connected to the second reinforcing plate to form a second connection part, the inner plate and the support plate are connected to form a third connection part, and the first connection part, the second connection part and the third connection part are formed on the peripheral side of the cavity structure by welding.

3. The vehicle body structure according to claim 2, characterized in that: The first reinforcing plate and the supporting plate are attached to each other and protrude outward to form a protruding portion, and the inner plate is recessed inward to form a recessed portion, and a cavity structure is formed by the mutual cooperation of the protruding portion and the recessed portion.

4. The vehicle body structure according to claim 3, characterized in that: In the same direction, the width of the support plate is smaller than the widths of the inner plate and the first reinforcing plate, the inner plate forms a first flange, the first reinforcing plate forms a second flange, the width of the first flange is larger than the second flange, and the first flange and the second flange abut against each other and are welded; The second flange forms spaced serrations, and each of the serrations overlaps and is welded to the first flange.

5. The vehicle body structure according to claim 2, characterized in that: The second reinforcing plate is provided with a mounting hole, the mounting hole comprising a first hole portion and a second hole portion that are interconnected, the diameter of the first hole portion being greater than the diameter of the second hole portion; The vehicle body structure also includes a luggage rack assembly, the luggage rack and a locking member, the diameter of the locking member is smaller than the diameter of the second hole portion, the locking member can move in the first hole portion and the second hole portion, and the locking member is arranged in the second hole portion.

6. The vehicle body structure according to claim 2, characterized in that: The length of the first reinforcing plate extending in the first direction is greater than the length of the support plate and the inner plate to form a connecting portion, an adhesive surface is formed on the connecting portion, and an adhesive portion is provided on the adhesive surface to connect the second reinforcing plate and the first reinforcing plate.

7. The vehicle body structure according to claim 6, characterized in that: The support column assembly protrudes outward to form a first bending portion, and the second reinforcement plate protrudes outward to form a second bending portion, the first bending portion and the second bending portion are arranged correspondingly, and the adhesion surface includes a first adhesion surface and a second adhesion surface, and the first adhesion surface and the second adhesion surface are respectively located on both sides of the first bending portion.

8. The vehicle body structure according to claim 6, characterized in that: The first reinforcing plate further includes a main body portion, the main body portion is connected to the adhesion surface, and in a direction from the inside of the vehicle body structure to the outside of the vehicle body structure, a height of the main body portion is greater than a height of the adhesion surface.

9. The vehicle body structure according to claim 2, characterized in that: The inner plate forms a solder hole for being filled with solder, and the solder abuts against the support plate so that the support plate and the inner plate can be welded.

10. A vehicle, characterized in that: The vehicle body structure comprises the vehicle body structure as claimed in any one of claims 1 to 9.

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