Vehicle body structure and vehicle

Abstract

This application discloses a vehicle body structure and a vehicle. The vehicle body structure includes a rear floor beam frame, which includes two longitudinal beams spaced apart. The rear floor beam frame also includes a front crossbeam and a rear crossbeam spaced apart. Both ends of the front and rear crossbeams are connected to the two longitudinal beams, respectively. Along the extension direction of the longitudinal beams, each longitudinal beam includes a connected longitudinal beam body and a rear section. The rear section of the longitudinal beam is connected to the side of the rear crossbeam away from the front crossbeam. Along the extension direction of the rear section of the longitudinal beam away from the longitudinal beam body, the distance between the rear sections of the two longitudinal beams increases. With the above solution, the vehicle body structure of this application can meet the requirement of the rear seats folding into the spare tire compartment.

Description

Technical Field

[0001] This application relates to the field of automotive technology, and in particular to a vehicle body structure and a vehicle. Background Technology

[0002] The rear floor beam is an important component of the vehicle's frame structure. Located beneath the rear seats, it supports the rear seats. The front of the rear floor beam connects to the sill beam and the front floor, while the rear connects to the rear extension beam and the spare tire well.

[0003] As vehicle size increases and users demand more rear seat and trunk space, the application of rear floor beams in vehicle bodies faces challenges, placing higher demands on the structural design of traditional rear floor beams. At the same time, the rear floor beams must meet the requirement of not cracking in the event of a rear-end collision. Utility Model Content

[0004] The main technical problem addressed by this application is to provide a vehicle body structure and vehicle that can meet the requirement of the rear seats being flipped into the spare tire compartment.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application is: to provide a vehicle body structure, including a rear floor beam frame, the rear floor beam frame including two longitudinal beams spaced apart, the rear floor beam frame also including a front crossbeam and a rear crossbeam spaced apart, the two ends of the front crossbeam and the rear crossbeam being respectively connected to the two longitudinal beams; wherein, along the extension direction of the longitudinal beam, the longitudinal beam includes a connected longitudinal beam body and a longitudinal beam rear section, the longitudinal beam rear section being connected to the side of the rear crossbeam away from the front crossbeam, and along the extension direction of the longitudinal beam rear section away from the longitudinal beam body, the distance between the rear sections of the two longitudinal beams increases.

[0006] Along the height direction of the vehicle body, the longitudinal beam has an arched structure, and the angle between the rear section of the longitudinal beam and the longitudinal beam body is an obtuse angle. The end of the longitudinal beam body near the rear section includes a first support plate and a second support plate spaced apart along the height direction. The rear section of the longitudinal beam includes a third support plate and a fourth support plate spaced apart. The first support plate is connected to the third support plate, and the second support plate is connected to the fourth support plate. A reinforcing structure is provided between the third support plate and the fourth support plate.

[0007] The reinforcing structure includes a first reinforcing component, which includes a first reinforcing plate, a second reinforcing plate, and a third reinforcing plate arranged radially. One end of the first reinforcing plate, the second reinforcing plate, and the third reinforcing plate intersects at a first point. The other end of the first reinforcing plate is connected to the junction of the first support plate and the third support plate. The other end of the second reinforcing plate is connected to the junction of the second support plate and the fourth support plate. The other end of the third reinforcing plate extends away from the longitudinal beam body.

[0008] Among them, at least two extension beam mounting structures are provided between the third support plate and the fourth support plate. The extension beam mounting structures are located at the rear end of the longitudinal beam away from the longitudinal beam body. The reinforcing structure includes a second reinforcing component, which includes at least one sub-reinforcing component. The sub-reinforcing component includes two fourth reinforcing plates and one fifth reinforcing plate. One end of the two fourth reinforcing plates is connected to the two extension beam mounting structures respectively. The other ends of the two fourth reinforcing plates intersect at a second point. One end of the fifth reinforcing plate is connected to the second point. The other end of the fifth reinforcing plate extends toward the longitudinal beam body.

[0009] The number of sub-reinforcing components is multiple, and the multiple sub-reinforcing components are distributed along the height direction. One end of the fourth reinforcing plate of two adjacent sub-reinforcing components is connected to the same extension beam mounting structure.

[0010] The longitudinal beam body is provided with a side plate along the direction from the front crossbeam to the rear crossbeam. The side plate includes a first mounting part and a second mounting part connected together. The distance between the two first mounting parts respectively provided on the two longitudinal beam bodies is less than the distance between the two second mounting parts.

[0011] Along the width direction of the vehicle body, an outer side plate is provided on the outer side of the side plate, and the outer side plate together with the first mounting part and the second mounting part forms a mounting cavity.

[0012] The side panel further includes a third mounting portion connected to the end of the second mounting portion away from the first mounting portion. Along the width direction of the vehicle body, the inner side of the third mounting portion is provided with a third reinforcing component. The third reinforcing component and the third mounting portion together form a reinforcing groove. The reinforcing groove is a blind groove extending along the extension direction of the longitudinal beam body.

[0013] The wall of the reinforcing tank is provided with a leakage hole, which is a through hole.

[0014] To solve the above-mentioned technical problems, another technical solution adopted in this application is to provide a vehicle including the body structure described in any of the technical solutions.

[0015] The beneficial effects of this application are as follows: Unlike existing technologies, the rear sections of the two longitudinal beams of the rear floor frame provided in this application have an "eight"-shaped opening structure, which increases the distance between the rear sections of the two longitudinal beams and between the two rear extension beams, thereby increasing the width of the spare tire compartment. This allows the rear seats to be folded and flipped back into the spare tire compartment for storage. Due to the increased width of the spare tire compartment, the rear floor frame of this application can be applied to large-sized vehicles, such as seven-seat MPVs (multi-Purpose Vehicles). The rear floor frame can be installed under the third-row seats, allowing the three-seater third-row seats to be flipped into the spare tire compartment, thereby expanding the size of the vehicle's trunk and meeting users' needs for a larger trunk. Attached Figure Description

[0016] Figure 1 This is a partial structural schematic diagram of an embodiment of the vehicle body structure of this application;

[0017] Figure 2 This is a perspective view of an embodiment of the rear floor beam frame of this application;

[0018] Figure 3 This application Figure 2 A top view of the rear floor beam frame is shown.

[0019] Figure 4 This application Figure 2 A side view of the rear floor beam frame shown;

[0020] Figure 5 This application Figure 4 A magnified view of a portion of region A in the middle;

[0021] Figure 6 This application Figure 2 A magnified view of a portion of region B in the middle.

[0022] Reference numerals: 1. Vehicle body structure; 10. Rear floor beam; 11. Longitudinal beam; 111. Longitudinal beam body; 1111. First support plate; 1112. Second support plate; 112. Rear section of longitudinal beam; 1121. Third support plate; 1122. Fourth support plate; 113. First reinforcing assembly; 1131. First reinforcing plate; 1132. Second reinforcing plate; 1133. Third reinforcing plate; 114. Second reinforcing assembly; 1140. Sub-reinforcing assembly; 1141. Fourth reinforcing plate; 1142. Fifth reinforcing plate; 115. Extension beam Mounting structure; 116, Side panel; 1160, Mounting cavity; 1161, First mounting part; 1162, Second mounting part; 1163, Third mounting part; 117, Outer side panel; 118, Third reinforcing assembly; 1180, Reinforcing groove; 1181, Sixth reinforcing plate; 1182, Seventh reinforcing plate; 1183, Leakage hole; 12, Front crossbeam; 13, Rear crossbeam; 14, Rear spring seat mounting point; 20, Sill beam; 30, Front floor; 40, Wheel cover; 50, Rear spare tire well panel; 60, Rear extension beam; 70, Rear spare tire well. Detailed Implementation

[0023] To make the objectives, technical solutions, and effects of this application clearer and more explicit, the following detailed description is provided with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] See Figures 1 to 3 , Figure 1 This is a partial structural schematic diagram of an embodiment of the vehicle body structure 1 of this application. Figure 2 This is a perspective view of an embodiment of the rear floor beam frame 10 of this application. Figure 3 This application Figure 2 The diagram shows a top view of the rear floor beam 10. The vehicle body structure 1 includes a rear floor beam 10, sill beams 20, a front floor 30, wheel arches 40, a rear spare tire well panel 50, a rear extension beam 60, and a rear spare tire well 70. Two sill beams, two wheel arches 40, and two rear extension beams 60 are provided. The rear floor beam 10 includes two spaced-apart longitudinal beams 11, and also includes a spaced-apart front crossbeam 12 and a rear crossbeam 13. Both ends of the front crossbeam 12 and the rear crossbeam 13 are connected to the two longitudinal beams 11. Along the extension direction of the longitudinal beams 11, each longitudinal beam 11 includes a connected longitudinal beam body 111 and a rear longitudinal beam section 112. The rear longitudinal beam section 112 connects to the side of the rear crossbeam 13 away from the front crossbeam 12. Along the extension direction of the rear longitudinal beam section 112 away from the longitudinal beam body 111, the distance between the rear longitudinal beam sections 112 of the two longitudinal beams 11 increases.

[0025] Specifically, the rear floor beam 10 is a one-piece cast structure. Two longitudinal beams 11 extend along the front-rear direction X of the vehicle body, and are spaced apart along the width direction Y of the vehicle body. A front crossbeam 12 and a rear crossbeam 13 both extend along the Y direction between the two longitudinal beams 11. The front crossbeam 12 connects to the front of the longitudinal beam 11, and the rear crossbeam 13 connects to the rear of the longitudinal beam 11. The longitudinal beam 11 is divided into two sections by the rear crossbeam 13 in its extending direction: the main body 111 and the rear section 112. That is, the end of the rear crossbeam 13 connects to the junction of the main body 111 and the rear section 112, with the rear section 112 protruding from the rear side of the rear crossbeam 13. Along the direction from the front to the rear of the vehicle (as shown by X in the figure), the distance between the two rear sections 112 gradually increases, forming a figure-eight shape. The end of the rear section 112 of the longitudinal beam, away from the main body 111, is fixedly connected to the rear extension beam 60. The front crossbeam 12 is connected between the two longitudinal beam bodies 111, with the front end of the longitudinal beam body 111 extending to the front side of the front crossbeam 12. The front end of the longitudinal beam body 111 is fixedly connected to the sill beam 20. The front floor 30 is connected within the space enclosed by the front crossbeam 12 and the two sill beams 20. The wheel arch 40 is connected above the longitudinal beam 11. The rear spare tire well panel 50 is connected within the space enclosed by the front crossbeam 12, the rear crossbeam 13, and the two longitudinal beams 11. The rear spare tire well 70 is connected within the space enclosed by the rear crossbeam 13 and the two rear extension beams 60. It should be noted that the longitudinal beam 11 is a single-piece structure; the longitudinal beam body 111 and the rear section 112 are only used to distinguish different segments of the longitudinal beam 11 in the extension direction.

[0026] The rear floor beam 10 provided in this application features a figure-eight shaped opening structure for the rear sections 112 of the two longitudinal beams, increasing the distance between the rear parts of the two longitudinal beam rear sections 112 and between the two rear extension beams 60. This increases the width of the spare tire compartment 70, allowing the rear seats to be folded and flipped back into the spare tire compartment 70 for storage. Due to the increased width of the spare tire compartment 70, the rear floor beam 10 of this application can be applied to large-sized vehicles, such as seven-seat MPVs (multi-Purpose Vehicles). The rear floor beam 10 can be positioned under the third-row seats, allowing the three-seater third-row seats to be flipped into the spare tire compartment 70, thereby expanding the size of the vehicle's trunk and meeting users' needs for a larger trunk.

[0027] Alternatively, in one embodiment, refer to... Figure 2 and combined Figure 4 , Figure 4 This application Figure 2The diagram shows a side view of the rear floor beam 10. Along the height direction Z of the vehicle body, the longitudinal beam 11 has an arched structure, and the angle between the rear section 112 of the longitudinal beam and the main body 111 of the longitudinal beam is an obtuse angle. The end of the main body 111 of the longitudinal beam near the rear section 112 of the longitudinal beam includes a first support plate 1111 and a second support plate 1112 spaced apart along the height direction. The rear section 112 of the longitudinal beam includes a third support plate 1121 and a fourth support plate 1122 spaced apart. The first support plate 1111 is connected to the third support plate 1121, and the second support plate 1112 is connected to the fourth support plate 1122. A reinforcing structure is provided between the third support plate 1121 and the fourth support plate 1122.

[0028] Specifically, from Figure 4 As can be seen, the longitudinal beam 11 has an arched structure that is low at both ends and high in the middle, with the front end of the longitudinal beam 11 lower than the rear section 112. In the height direction Z, the longitudinal beam 11 includes an upper support plate and a lower support plate (not shown) spaced apart. The upper support plate includes a first support plate 1111 and a third support plate 1121 connected together. An obtuse angle bend is formed between the first support plate 1111 and the third support plate 1121, and an obtuse angle bend is formed between the second support plate 1112 and the fourth support plate 1122. A rear spring seat mounting point 14 is provided below the longitudinal beam body 111, and the arched structure provides more height space for the rear spring. Because the arched structure causes an obtuse angle bend at the intersection of the longitudinal beam body 111 and the rear section 112, the impact force from the rear of the vehicle body is prone to cause stress concentration at the bend, which can easily lead to the rear floor beam 10 breaking at the bend during a rear-impact test. In this embodiment, the hollowed-out longitudinal beam 11 ensures the lightweight of the rear floor beam frame 10, the reinforced structure ensures the strength of the rear section 112 of the longitudinal beam, and a corresponding reinforced structure is also provided between the first support plate 1111 and the second support plate 1112.

[0029] Alternatively, in one embodiment, refer to... Figure 2 , Figure 4 and Figure 5 , Figure 5 This application Figure 4 A partial enlarged view of region A. The reinforcing structure includes a first reinforcing component 113, which includes a first reinforcing plate 1131, a second reinforcing plate 1132, and a third reinforcing plate 1133 arranged radially. One end of the first reinforcing plate 1131, the second reinforcing plate 1132, and the third reinforcing plate 1133 intersects at a first point. The other end of the first reinforcing plate 1131 is connected to the junction of the first support plate 1111 and the third support plate 1121. The other end of the second reinforcing plate 1132 is connected to the junction of the second support plate 1112 and the fourth support plate 1122. The other end of the third reinforcing plate 1133 extends away from the longitudinal beam body 111.

[0030] Specifically, one end of each of the three reinforcing plates—the first reinforcing plate 1131, the second reinforcing plate 1132, and the third reinforcing plate 1133—converges at a first point O1, located between the third support plate 1121 and the fourth support plate 1122, with the included angle between any two adjacent reinforcing plates being an obtuse angle. The first reinforcing plate 1131 is used to support the bend between the first support plate 1111 and the third support plate 1121, the second reinforcing plate 1132 is used to support the bend between the second support plate 1112 and the fourth support plate 1122, and the third reinforcing plate 1133 extends along the extension direction of the rear section 112 of the longitudinal beam, used to transmit and disperse the impact force from the rear of the vehicle body to the first reinforcing plate 1131 and the second reinforcing plate 1132. At the same time, since the two stress concentration bends of the longitudinal beam 11 are both supported by the first reinforcing component 113, the probability of rear floor beam frame 10 fracture is further reduced, ensuring the reliability of the vehicle body structure 1.

[0031] Alternatively, in one embodiment, refer to... Figure 2 , Figure 4 and Figure 5 At least two extension beam mounting structures 115 are provided between the third support plate 1121 and the fourth support plate 1122. The extension beam mounting structures 115 are located at the end of the rear section 112 of the longitudinal beam away from the longitudinal beam body 111, and are used to connect with the rear extension beam 60. The reinforcing structure includes a second reinforcing component 114, which includes at least one sub-reinforcing component 1140. The sub-reinforcing component 1140 includes two fourth reinforcing plates 1141 and one fifth reinforcing plate 1142. One end of each of the two fourth reinforcing plates 1141 is connected to one of the two extension beam mounting structures 115, and the other ends of the two fourth reinforcing plates 1141 intersect at a second point O2. One end of the fifth reinforcing plate 1142 is connected to the second point O2, and the other end of the fifth reinforcing plate 1142 extends toward the longitudinal beam body 111.

[0032] Specifically, a sub-reinforcing assembly 1140 includes three reinforcing plates, forming a transverse "Y" shape in a side view. The included angle between the two fourth reinforcing plates 1141 is an acute angle, while the included angle between the fourth reinforcing plate 1141 and the fifth reinforcing plate 1142 is an obtuse angle. The two fourth reinforcing plates 1141 are respectively used to support the two extension beam mounting structures 115, enhancing the strength at the connection between the rear section 112 of the longitudinal beam and the rear extension beam 60, and transmitting the impact force to the fifth reinforcing plate 1142. The fifth reinforcing plate 1142 extends along the extension direction of the rear section 112 of the longitudinal beam, transmitting and dispersing the impact force forward along the rear section 112 of the longitudinal beam.

[0033] Specifically, in this embodiment, three extension beam mounting structures 115 are provided, distributed along the height direction Z, and connected to the end and lower part of the rear extension beam 60 respectively. Two sub-reinforcing components 1140 are provided, distributed along the height direction, with four fourth reinforcing plates 1141 and two fifth reinforcing plates 1142. The four fourth reinforcing plates 1141 are connected to the three extension beam mounting structures 115 respectively. One end of two adjacent fourth reinforcing plates 1141 in two adjacent sub-reinforcing components 1140 is connected to the same extension beam mounting structure 115. The four fourth reinforcing plates 1141 form a transverse "W" shape in the side view. The two fifth reinforcing plates 1142 are spaced apart along the Z direction and connected to the third reinforcing plate 1133 and the fourth support plate 1122 respectively. In this embodiment, the first reinforcing component 113 and the second reinforcing component 114 form a mesh-like reinforcing structure, further improving the strength of the rear section 112 of the longitudinal beam.

[0034] Alternatively, in one embodiment, refer to... Figure 3 and Figure 6 , Figure 6 This application Figure 2 A partial enlarged view of region B. The longitudinal beam body 111 is provided with a side plate 116, which runs along the direction from the front crossbeam 12 to the rear crossbeam 13. The side plate 116 includes a first mounting part 1161 and a second mounting part 1162 connected to each other. The distance between the two first mounting parts 1161, which are respectively provided on the two longitudinal beam bodies 111, is smaller than the distance between the two second mounting parts 1162.

[0035] Specifically, along the Y direction, the first mounting portion 1161 is located inside the second mounting portion 1162, so that the space between the two second mounting portions 1162 near the rear of the vehicle body has a greater width, which is used to install the rear seats, thereby providing more installation space for the rear seats.

[0036] Further reading Figure 3 and Figure 6 Along the width direction Y of the vehicle body, an outer side plate 117 is provided on the outer side of the side plate 116. The outer side plate 117, together with the first mounting part 1161 and the second mounting part 1162, forms a mounting cavity 1160. From Figure 3 As can be seen, the mounting cavity 1160 has an overall L-shaped cross-section in the horizontal direction. The cavity structure of the mounting cavity 1160 is used to improve the torsional mode of the vehicle body. The distance between the first mounting part 1161 and the outer side plate 117 is greater than the distance between the second mounting part 1162 and the outer side plate 117, so that the cross-sectional dimension of the front part of the mounting cavity 1160 is larger than that of the rear part, which effectively increases the torsional mode of the vehicle body while ensuring seat installation space.

[0037] Further reading Figure 3 and Figure 6 The side panel 116 also includes a third mounting portion 1163 connected to the end of the second mounting portion 1162 away from the first mounting portion 1161. Along the width direction of the vehicle body, a third reinforcing component 118 is provided on the inner side of the third mounting portion 1163. The third reinforcing component 118 and the third mounting portion 1163 together form a reinforcing groove 1180, which is a blind groove extending along the extension direction of the longitudinal beam body 111. Specifically, along the X direction, the side panel 116 includes a first mounting portion 1161, a second mounting portion 1162, and a third mounting portion 1163 connected in sequence. The third mounting portion 1163 is located outside the second mounting portion 1162 along the Y direction. The third reinforcing component 118 includes a sixth reinforcing plate 1181 and a seventh reinforcing plate 1182. The sixth reinforcing plate 1181 is parallel to and spaced apart from the third mounting part 1163 on its inner side. The front end of the sixth reinforcing plate 1181 is connected to the longitudinal beam body 111, and the rear end of the sixth reinforcing plate 1181 is connected to the seventh reinforcing plate 1182. The seventh reinforcing plate 1182 is perpendicular to the third mounting part 1163. The third mounting part 1163, the longitudinal beam body 111, the sixth reinforcing plate 1181, and the seventh reinforcing plate 1182 together form a rectangular reinforcing groove 1180. This reinforcing groove 1180 corresponds to the shock absorber mounting structure below the longitudinal beam body 111, further improving the strength of the longitudinal beam body 111 and reducing damage caused by the force exerted on the longitudinal beam body 111 by the shock absorber.

[0038] Optionally, the wall of the reinforcing tank 1180 is provided with a drain hole 1183, which is a through hole. Specifically, the drain hole 1183 is provided on the sixth reinforcing plate 1181 to solve the problem of electrophoretic fluid accumulation during the electrophoresis process of the car body.

[0039] This application also provides a vehicle including the body structure 1 of any of the above embodiments. The vehicle provided by this application can be a pure gasoline vehicle, a hybrid electric vehicle, or a pure electric vehicle, and is also applicable to any other type of vehicle, such as a sports utility vehicle (SUV), an off-road vehicle, an MPV, etc., and is especially applicable to a seven-seat MPV.

[0040] The above are merely embodiments of this application and do not limit the scope of this patent application. Any equivalent structural or procedural changes made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this application.

Claims

1. A vehicle body structure characterized by comprising: Including the rear floor beams, The rear floor beam frame includes two longitudinal beams spaced apart, and also includes a front crossbeam and a rear crossbeam spaced apart, with both ends of the front crossbeam and the rear crossbeam connected to the two longitudinal beams respectively; wherein, Along the extension direction of the longitudinal beam, the longitudinal beam includes a connected longitudinal beam body and a longitudinal beam rear section, the longitudinal beam rear section being connected to the rear crossbeam on the side away from the front crossbeam, and along the extension direction of the longitudinal beam rear section away from the longitudinal beam body, the distance between the longitudinal beam rear sections of the two longitudinal beams increases.

2. The vehicle body structure according to claim 1, characterized in that, Along the height direction of the vehicle body, the longitudinal beam has an arched structure, and the angle between the rear section of the longitudinal beam and the longitudinal beam body is an obtuse angle; The longitudinal beam body includes a first support plate and a second support plate spaced apart along the height direction at one end near the rear section of the longitudinal beam. The rear section of the longitudinal beam includes a third support plate and a fourth support plate spaced apart. The first support plate is connected to the third support plate, and the second support plate is connected to the fourth support plate. A reinforcing structure is provided between the third support plate and the fourth support plate.

3. The vehicle body structure according to claim 2, characterized in that, The reinforcing structure includes a first reinforcing component, which includes a first reinforcing plate, a second reinforcing plate, and a third reinforcing plate arranged radially. One end of the first reinforcing plate, the second reinforcing plate, and the third reinforcing plate intersects at a first point. The other end of the first reinforcing plate is connected to the junction of the first support plate and the third support plate. The other end of the second reinforcing plate is connected to the junction of the second support plate and the fourth support plate. The other end of the third reinforcing plate extends away from the longitudinal beam body.

4. The vehicle body structure according to claim 2, characterized in that, At least two extension beam mounting structures are provided between the third support plate and the fourth support plate, and the extension beam mounting structures are located at the end of the longitudinal beam that is away from the longitudinal beam body at the rear section. The reinforcing structure includes a second reinforcing component, which includes at least one sub-reinforcing component. The sub-reinforcing component includes two fourth reinforcing plates and one fifth reinforcing plate. One end of each of the two fourth reinforcing plates is connected to one of the two extension beam mounting structures, and the other ends of the two fourth reinforcing plates intersect at a second point. One end of the fifth reinforcing plate is connected to the second point, and the other end of the fifth reinforcing plate extends toward the longitudinal beam body.

5. The vehicle body structure according to claim 4, characterized in that, The number of sub-reinforcing components is multiple, and the multiple sub-reinforcing components are distributed along the height direction. One end of the fourth reinforcing plate of two adjacent sub-reinforcing components is connected to the same extension beam mounting structure.

6. The vehicle body structure according to any one of claims 1-5, characterized in that, The longitudinal beam body is provided with a side plate along the direction from the front crossbeam to the rear crossbeam. The side plate includes a first mounting part and a second mounting part connected together. The distance between the two first mounting parts respectively provided on the two longitudinal beam bodies is less than the distance between the two second mounting parts.

7. The vehicle body structure according to claim 6, characterized in that, Along the width direction of the vehicle body, an outer side plate is provided on the outer side of the side plate, and the outer side plate together with the first mounting part and the second mounting part forms a mounting cavity.

8. The vehicle body structure according to claim 6, characterized in that, The side panel also includes a third mounting portion connected to the end of the second mounting portion away from the first mounting portion. Along the width direction of the vehicle body, the inner side of the third mounting portion is provided with a third reinforcing component. The third reinforcing component and the third mounting portion together form a reinforcing groove. The reinforcing groove is a blind groove extending along the extension direction of the longitudinal beam body.

9. The vehicle body structure according to claim 8, characterized in that, The wall of the reinforcing tank is provided with a leakage hole, which is a through hole.

10. A vehicle characterized by comprising: Includes the vehicle body structure as described in any one of claims 1-9.

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