Vehicle body side wall structure and vehicle

Abstract

The utility model relates to the technical field of vehicle body structures, and particularly provides a vehicle body side wall structure and a vehicle. The vehicle body side wall structure comprises an A column assembly, a rear wheel cover assembly and a top cover edge beam assembly. The top cover edge beam assembly comprises an edge beam body arranged on the top of the side wall of the automobile body, the edge beam body is made of pipe sectional materials, and the two ends of the edge beam body are connected to the A column assembly and the rear wheel cover assembly respectively. According to the vehicle body side wall structure, the bent edge beam body is arranged between the A column assembly and the rear wheel cover assembly, and the edge beam body adopts a pipe section structure similar to an anti-rolling bar, so that a frame at the top of the side wall is formed, and the protection effect of a vehicle anti-rolling frame can be achieved; the beam body structure of the pipe section has good strength performance, combination arrangement of an inner plate, an outer plate, a reinforcing plate and the like can be omitted, and therefore the number of parts of the top cover edge beam assembly of the vehicle side wall can be effectively reduced, and the assembling difficulty can be effectively lowered.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle body structures, and in particular to a vehicle body side structure. In addition, the utility model also relates to a vehicle. Background Art

[0002] The strength of a car's side panels and roof has a significant impact on the vehicle's safety performance. When the vehicle is involved in a side collision or rolls over, if the side panel's roof side beam assembly breaks or severely deforms, it will cause serious injury to the people inside the cabin. Therefore, the structural strength of the roof side beam assembly itself is crucial to the vehicle's safety.

[0003] In the existing technology, the roof side beam assembly is mostly assembled by welding stamped inner panels, outer panels, reinforcement panels and other structural parts; the number of panels is large and the welding and assembly process is complicated. Connecting structural parts are also required at the positions corresponding to the roof cross beam, A-pillar assembly and B-pillar assembly, and the connecting structural parts and the panels of the roof side beam assembly also need to be assembled and fixed by welding, screwing and other methods.

[0004] The existing design has a large number of structural components, a complex welding and assembly process, and is not conducive to the lightweight design of the roof side rail assembly. Therefore, it is necessary to research and improve the body side and roof structure to optimize their design and performance. Utility Model Content

[0005] In view of this, the present invention aims to provide a vehicle body side panel structure to reduce the number of components and the difficulty of assembly of the roof side beam assembly of the vehicle side panel.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0007] A vehicle body side structure, comprising an A-pillar assembly, a rear wheel cover assembly, and a roof side beam assembly;

[0008] The roof side beam assembly includes a side beam body arranged on the top of the vehicle body side, the side beam body is made of a tube profile, and the two ends of the side beam body are respectively connected to the A-pillar assembly and the rear wheel cover assembly.

[0009] Furthermore, the side beam body includes a main section and a lower extension section connected front and rear, the main section is arranged along the front and rear direction of the vehicle body, and the lower extension section is bent downward from the rear end of the main section; the front end of the main section is connected to the A-pillar assembly, and the bottom end of the lower extension section is connected to the rear wheel cover assembly.

[0010] Furthermore, the roof side beam assembly also includes a crossbeam mounting plate arranged on the main body section, the crossbeam mounting plate has a root plate body overlapped on the main body section, and a main plate body extending from the root plate body toward the inner side of the vehicle, and the main plate body is used to connect the roof crossbeam of the vehicle roof.

[0011] Furthermore, the front and rear edge portions of the main board body are both formed with side flanges, and / or the main board body is provided with long holes.

[0012] Furthermore, it also includes a B-pillar assembly whose top is connected to the main section; the crossbeam mounting plate includes a middle crossbeam mounting plate located above the B-pillar assembly, and a rear crossbeam mounting plate located at the rear of the main section.

[0013] Furthermore, the B-pillar assembly includes a B-pillar inner panel whose top end is overlapped with the outer side of the main section, and a beam support plate supported between the B-pillar inner panel and the bottom of the main section; the root plate of the center cross beam mounting plate is overlapped with the inner side of the main section.

[0014] Furthermore, the A-pillar assembly includes an A-pillar inner panel and an A-pillar reinforcement panel that are connected by inner and outer snap fastenings, the A-pillar inner panel is wrapped around the inner side of the main body section, and the A-pillar reinforcement panel is wrapped around the outer side of the main body section; the roof side beam assembly also includes an A-pillar connecting plate provided at the top front end of the main body section, and the two ends of the A-pillar connecting plate are respectively overlapped on the A-pillar inner panel and the A-pillar reinforcement panel.

[0015] Furthermore, the rear wheel arch assembly includes a wheel arch inner panel, and a beam body mounting plate buckled on the top of the wheel arch inner panel; a cavity is formed between the beam body mounting plate and the wheel arch inner panel, and a wheel arch reinforcement plate is provided in the cavity; the end of the side beam body is inserted into the cavity through the beam body mounting plate and abuts against the wheel arch reinforcement plate.

[0016] Furthermore, a side panel support plate is provided on the side beam body above the beam body mounting plate, the middle portion of the side panel support plate is connected to the outer side of the side beam body, and both ends of the side panel support plate are in contact with the side panel above the rear wheel cover assembly.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] The vehicle body side structure of the present invention is provided with a curved side beam body between the A-pillar assembly and the rear wheel cover assembly, and the side beam body adopts a tubular profile structure similar to a roll bar, which not only forms a frame for the top of the side, but also can play a protective role of the vehicle roll cage; the tubular profile beam body structure has good strength performance itself, and can eliminate the combination of inner and outer panels, reinforcement plates, etc., thereby effectively reducing the number of parts and assembly difficulty of the top cover side beam assembly of the vehicle side.

[0019] Furthermore, a crossbeam mounting plate is installed on the main body, providing convenient assembly and connection conditions for the roof crossbeam, facilitating the connection and installation between the ends of the roof crossbeam and the side beam bodies. Flanged edges are provided on the front and rear sides of the main body of the crossbeam mounting plate to enhance the overall structural strength of the crossbeam mounting plate, thereby improving the support provided by the side beam bodies to the roof crossbeam.

[0020] In addition, a beam mounting plate is installed at the top of the wheel arch inner panel, and the bottom end of the lower extension is inserted into the cavity formed between the beam mounting plate and the wheel arch inner panel. The wheel arch reinforcement plate in the cavity supports the lower extension, forming a connection structure with good buffering effect at this location. While ensuring the stability of the connection at the rear of the side beam body, it also improves the buffering and sound insulation effects of this location. A side panel support plate is installed between the side panel and the lower extension, using the structurally stable side beam body as a foundation to provide effective support for the side panel, thereby improving the structural stability of the side panel above the rear wheel arch assembly. Moreover, due to the overall "J"-shaped structure of the side panel support plate, it forms an arched support between the lower extension and the side panel, which can also provide a certain buffering effect when the side panel is subjected to external collisions.

[0021] Another object of the present invention is to provide a vehicle that adopts the vehicle body side structure of the present invention. The vehicle of the present invention has the technical advantages possessed by the vehicle body side structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention. Terms such as front and back, top and bottom, etc., used therein are only intended to indicate relative positional relationships and do not constitute improper limitations on the present invention. In the accompanying drawings:

[0023] Figure 1 This is a schematic diagram of the overall structure of the vehicle body side structure according to an embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram of the overall structure of the roof side beam assembly according to an embodiment of the present utility model;

[0025] Figure 3 for Figure 2 The structure diagram of the roof side rail assembly shown is from the perspective of the vehicle exterior side;

[0026] Figure 4 for Figure 1 Schematic diagram of the cross-sectional structure of the part indicated by AA;

[0027] Figure 5 for Figure 1 Schematic diagram of the cross-sectional structure of the part indicated by BB in the middle;

[0028] Figure 6 for Figure 1 Schematic diagram of the cross-sectional structure of the part indicated by CC.

[0029] Description of reference numerals:

[0030] 1. Roof side beam assembly; 10. Side beam body; 100. Main body section; 101. Lower extension section; 11. A-pillar connecting plate; 12. Cross beam mounting plate; 120. Root plate body; 121. Main body body; 122. Side flange; 123. Long strip hole; 12a. Middle cross beam mounting plate; 12b. Rear cross beam mounting plate; 2. A-pillar assembly; 20. A-pillar inner plate; 21. A-pillar reinforcement plate; 3. B-pillar assembly; 30. B-pillar inner plate; 31. B-pillar reinforcement plate; 32. Beam support plate; 4. Rear wheelhouse assembly; 40. Beam mounting plate; 400. Wheelhouse reinforcement plate; 41. Side panel support plate; 42. Wheelhouse inner plate; 43. Wheelhouse outer plate; 5. Side panel. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0032] In the description of the present invention, it should be stated that if terms such as "up, down, left, right, front, back, inside, outside" that indicate directions or positional relationships appear, they are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed or operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. Taking the vehicle described in the present invention as an example, the direction words such as "up, down, left, right, front, back" used in the embodiments are defined based on the up and down directions (also called height directions), left and right directions (also called width directions) and front and back directions (also called length directions) of the vehicle. Specifically, as shown in the accompanying drawings, the X direction is the front and back direction of the vehicle, wherein the side pointed by the arrow is "front" and the opposite is "back". The Y direction is the left and right direction of the vehicle, wherein the side pointed by the arrow is "left" and the opposite is "right". The Z direction is the up and down direction of the vehicle, wherein the side pointed by the arrow is "up" and the opposite is "down". "Inside" and "outside" are defined based on the outline of the corresponding components. For example, "inside" and "outside" are defined based on the vehicle outline. The side of the vehicle outline close to the middle of the vehicle is "inside", and the opposite side is "outside".

[0033] Furthermore, in the description of this utility model, unless otherwise expressly defined, the terms "mounted," "connected," "connection," and "connector" should be interpreted broadly. For example, a connection can be a fixed connection, a removable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediary, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0034] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0035] Example 1

[0036] This embodiment relates to a vehicle body side structure, which is beneficial to reducing the number of parts and assembly difficulty of the roof side beam assembly 1 of the vehicle side; an exemplary structure thereof is as follows Figure 1 、 Figure 2 and Figure 3 shown.

[0037] Generally speaking, the body side structure includes an A-pillar assembly 2, a rear wheelhouse assembly 4, and a roof side rail assembly 1. The roof side rail assembly 1 includes a side rail body 10 arranged at the top of the body side. The side rail body 10 is made of a tubular profile, with its ends connected to the A-pillar assembly 2 and the rear wheelhouse assembly 4, respectively.

[0038] It should be pointed out that, based on the above-mentioned overall design concept, the technical solution of the present utility model can adopt a variety of different specific implementation structures, forms or configuration sequences. For example, the above-mentioned side beam body 10 and A-pillar assembly 2 can adopt a variety of different specific connection forms such as riveting, screwing, welding, etc.; the specific setting sequence, assembly method, etc. of the side beam body 10 and A-pillar assembly 2, rear wheel cover assembly 4, etc. can also be flexibly adjusted. For the parts required for the implementation of the overall solution but not involved in the above-mentioned overall setting, reasonable and flexible design can be made with reference to the mature setting means in this field, the actual situation during implementation, etc. The specific implementation scheme described below in this embodiment is only a better one of the many schemes that can be formed by the above-mentioned various combinations and changes. In actual implementation, those skilled in the art can make flexible adjustments and improvements based on the actual situation. Obviously, the many schemes that can be formed by the above-mentioned various specific forms of combination and changes, as well as the specific implementation scheme of this embodiment, are all within the scope of protection of the present utility model.

[0039] Specifically, the side rail body 10 of this embodiment comprises a main section 100 and a lower extension 101, connected front to back. The main section 100 runs along the vehicle's front-to-back direction, while the lower extension 101 curves downward from the rear end of the main section 100. The front end of the main section 100 connects to the A-pillar assembly 2, while the bottom end of the lower extension 101 connects to the rear wheelhouse assembly 4. The side rail body 10 is divided into two sections: the main section 100 serves as the side rail frame for the roof, while the lower extension 101 provides strong support between the rear wheelhouse assembly 4 and the roof, ensuring that the roof side rail assembly 1 provides excellent protection.

[0040] Furthermore, given that a vehicle roof will be equipped with a roof crossbeam, the roof side member assembly 1 of this embodiment also includes a crossbeam mounting plate 12 disposed on the main section 100. This crossbeam mounting plate 12 comprises a root plate 120 that overlaps the main section 100 and a main plate 121 that extends from the root plate 120 toward the vehicle interior. The main plate 121 is used to connect to the roof crossbeam. The provision of the crossbeam mounting plate 12 on the main section 100 facilitates assembly and connection of the roof crossbeam, facilitating the connection and installation between the end of the roof crossbeam and the side member body 10.

[0041] Regarding the arrangement of the crossbeam mounting plate 12, there are of course a variety of different structural solutions to choose from; for example, a structural form such as a steel bracket can be used. Figure 2 As shown, the front and rear edges of the main body 121 of the crossbeam mounting plate 12 are formed with side flanges 122. At the same time, a plurality of elongated holes 123 can be provided on the main body 121. When the elongated holes 123 are provided, it is preferred that the elongated holes 123 are arranged along the left and right directions of the vehicle.

[0042] The front and rear flanges of the main plate 121 enhance the overall structural strength of the crossbeam mounting plate 12, thereby improving the support provided by the side beam body 10 to the roof crossbeam. The elongated holes 123 provided in the main plate 121 not only allow bolts to secure the crossbeam mounting plate 12 to the roof crossbeam, but also serve as welding windows, increasing the welding area between the roof crossbeam and the crossbeam mounting plate 12. In addition, the crossbeam mounting plate 12 can be designed to be rectangular, but in view of the fact that the crossbeam mounting plate 12 is suitable for being fixed to the side beam body 10 by carbon dioxide welding, it is preferred to design the crossbeam mounting plate 12 to be a trapezoidal structure, that is, the size of the main board body 121 in the front-to-rear direction of the vehicle is gradually reduced along the direction in which it extends toward the inside of the vehicle, so that the main board body 121 is trapezoidal; in this way, a closing opening is formed at the end of the main board body 121, and the top cover crossbeam is inserted into the closing opening, while the root plate body 120 is larger in size, thereby increasing the welding area between the crossbeam mounting plate 12 and the side beam body 10, thereby further improving the connection firmness between the crossbeam mounting plate 12 and the side beam body 10.

[0043] Given the configuration of the vehicle's B-pillar assembly 3, connecting the top of the B-pillar assembly 3 to the middle of the main section 100 provides excellent support for the side beam body 10. Furthermore, the middle crossbeam mounting plate 12a of the crossbeam mounting plate 12 is correspondingly positioned above the B-pillar assembly 3. This allows the middle crossbeam in the roof crossbeam and the B-pillar assembly 3 to converge at the same location on the main section 100. The middle crossbeam and B-pillar assembly 3 form a door-shaped frame, which helps enhance the structural stability of the middle crossbeam. Specifically, the vehicle body side structure of this embodiment also includes a B-pillar assembly 3, the top of which is connected to the main section 100. The crossbeam mounting plates 12 include a middle crossbeam mounting plate 12a located above the B-pillar assembly 3 and a rear crossbeam mounting plate 12b located at the rear of the main section 100. The above-mentioned roof crossbeam includes a front crossbeam, a middle crossbeam and a rear crossbeam, wherein the front crossbeam can be connected between the front ends of the two side beam bodies 10 on both sides of the vehicle, the middle crossbeam is connected between the middle crossbeam mounting plates 12a on the side beam bodies 10 on both sides, and the rear crossbeam is connected between the rear crossbeam mounting plates 12b on the side beam bodies 10 on both sides.

[0044] like Figure 1 and Figure 4As shown, the A-pillar assembly 2 of this embodiment includes an A-pillar inner panel 20 and an A-pillar reinforcement panel 21 that are connected by inner and outer snap-fitting. The A-pillar inner panel 20 is wrapped around the inner side of the main section 100, and the A-pillar reinforcement panel 21 is wrapped around the outer side of the main section 100. At the same time, the roof side beam assembly 1 also includes an A-pillar connecting panel 11 provided at the top of the front end of the main section 100, with the two ends of the A-pillar connecting panel 11 respectively overlapping the A-pillar inner panel 20 and the A-pillar reinforcement panel 21. The ends of the A-pillar inner panel 20 and the A-pillar reinforcement panel 21 of the A-pillar assembly 2 are respectively wrapped around the inner and outer sides of the front end of the main section 100, and the A-pillar connecting panel 11 is provided at the top of the front end of the main section 100. The various components in this area can be welded and fixedly connected using a carbon dioxide shielded welding process, thereby allowing the A-pillar assembly 2 to form a tight wrapping and connection with the main section 100, which can greatly improve the connection firmness of the front end of the side beam body 10.

[0045] There are many forms of the specific structure of the B-pillar assembly 3 and the connection between the B-pillar assembly 3 and the main body section 100. In this embodiment, Figure 5 As shown, the B-pillar assembly 3 includes a B-pillar inner panel 30 and a B-pillar reinforcement panel 31 that snap together inside and outside, as well as a beam support plate 32 supported between the B-pillar inner panel 30 and the bottom of the main section 100. Preferably, the top ends of the B-pillar inner panel 30 and the B-pillar reinforcement panel 31 are overlapped on the outside of the main section 100. The root plate 120 of the aforementioned center cross beam mounting plate 12a is overlapped on the inside of the main section 100. The bottom end of the beam support plate 32 is connected to the B-pillar inner panel 30, extending upward and tilting inward to support the bottom of the main section 100. In this way, in conjunction with the center cross beam mounting plate 12a located on the inside of the main section 100, the inside, outside, and bottom of the main section 100 are all wrapped, and the B-pillar assembly 3, the center cross beam mounting plate 12a, and the main section 100 are tightly connected, which can improve the structural stability of this area.

[0046] like Figure 6 As shown, the rear wheel arch assembly 4 of this embodiment includes a wheel arch outer panel 43 and a wheel arch inner panel 42 that are fastened together, and a beam mounting plate 40 that is fastened to the top of the wheel arch inner panel 42. A cavity is formed between the beam mounting plate 40 and the wheel arch inner panel 42, and a wheel arch reinforcement plate 400 is provided in the cavity. Based on the above-mentioned arrangement, the end of the side beam body 10 of this embodiment is inserted into the cavity through the beam mounting plate 40 and abuts against the wheel arch reinforcement plate 400. The beam mounting plate 40 is provided at the top of the wheel arch inner panel 42, and the bottom end of the lower extension section 101 is inserted into the cavity formed between the beam mounting plate 40 and the wheel arch inner panel 42. With the wheel arch reinforcement plate 400 in the cavity supporting the lower extension section 101, a connection structure with good buffering effect can be formed at this location. While ensuring the stability of the connection at the rear of the side beam body 10, the buffering and sound insulation effects of this location can also be improved.

[0047] In addition, in this embodiment, a side panel support plate 41 is provided on the side beam body 10 above the beam body mounting plate 40. The middle portion of the side panel support plate 41 is connected to the outer side of the side beam body 10, and both ends of the side panel support plate 41 abut against the side panel 5 above the rear wheelhouse assembly 4. The side panel support plate 41 is provided between the side panel 5 and the lower extension 101. The side panel support plate 41, with the structurally stable side beam body 10 serving as a foundation, effectively supports the side panel 5, thereby enhancing the structural stability of the side panel 5 above the rear wheelhouse assembly 4. Furthermore, since the side panel support plate 41 is in the shape of a Chinese character "J", it forms an arched support between the lower extension 101 and the side panel 5. This provides a certain cushioning effect when the side panel 5 is subjected to an external collision.

[0048] To sum up, the vehicle body side structure of this embodiment is provided with a curved side beam body 10 between the A-pillar assembly 2 and the rear wheel cover assembly 4, and the side beam body 10 adopts a tubular profile structure similar to a roll bar, which not only forms a frame for the top of the side, but also can play a protective role of the vehicle roll cage; the tubular profile beam structure itself has good strength performance, and can eliminate the combination of inner and outer panels, reinforcement plates, etc., thereby effectively reducing the number of parts and assembly difficulty of the top cover side beam assembly 1 of the vehicle side.

[0049] Example 2

[0050] This embodiment relates to a vehicle, and the vehicle adopts the vehicle body side structure provided in the first embodiment.

[0051] The vehicle body side panel structure of the present invention adopts a tubular side beam body 10. Through the CO2 welding process, the A-pillar assembly 2, the A-pillar connecting plate 11, the crossbeam mounting plate 12, the B-pillar assembly 3, and the beam body mounting plate 40 and the side panel support plate 41 on the rear wheel cover assembly 4 are firmly welded to the side beam body 10 to form a solid side panel frame structure.

[0052] The front end of the side beam body 10 is connected to the top of the A-pillar assembly 2, and the A-pillar inner panel 20, the A-pillar reinforcement panel 21, and the A-pillar connecting plate 11 together form an "O"-shaped wrap-around welding of the side beam body 10, making the connection more stable; the middle part of the main section 100 is connected to the B-pillar assembly 3, and the B-pillar inner panel 30, the B-pillar reinforcement panel 31 and the beam body support plate 32 form a "Y"-shaped support structure, which is welded and fixed to the main section 100 to provide strong support; the tail end of the side beam body 10 (i.e. the bottom end of the lower extension section 101) is connected to the rear wheel cover assembly 4, and the wheel cover inner panel 42, the wheel cover reinforcement panel 400 and the beam body mounting plate 40 form a three-layer sheet metal cavity structure, which provides solid support for the side beam body 10, and the side is supported and connected to the side panel 5 through the side support plate 41, providing lateral support and connection.

[0053] Overall, by setting the above-mentioned body side structure on the vehicle side, a lightweight and less-component design is achieved, and the side beam body 10 can play the function of a roll cage; this new design not only meets the overall performance index requirements of the vehicle side, but also has obvious less-component and lightweight characteristics. The overall structure has higher stability and rigidity, effectively improving the performance index of the vehicle body.

[0054] At the same time, the simple structure of the roof side beam assembly 1 provides conditions for setting a removable roof on the roof; it is suitable for convertible models that require a removable roof; this innovative body frame structure meets the user's experience needs for using a convertible car while realizing the removable roof.

[0055] The above description is merely a preferred embodiment of the present invention. The detailed configuration explanations, specific structural configuration examples, and assembly connection descriptions are provided for the purpose of providing sufficient disclosure to enable those skilled in the art to better implement the present invention. They are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A vehicle body side structure, characterized in that: It includes an A-pillar assembly (2), a rear wheel cover assembly (4), and a roof side beam assembly (1); The roof side beam assembly (1) comprises a side beam body (10) arranged on the top of the vehicle body side, the side beam body (10) is made of a tube profile, and the two ends of the side beam body (10) are respectively connected to the A-pillar assembly (2) and the rear wheel cover assembly (4).

2. The vehicle body side structure according to claim 1, characterized in that: The side beam body (10) comprises a main section (100) and a lower extension section (101) connected front and rear, the main section (100) being arranged along the front and rear direction of the vehicle body, and the lower extension section (101) being bent downward from the rear end of the main section (100); The front end of the main body section (100) is connected to the A-pillar assembly (2), and the bottom end of the lower extension section (101) is connected to the rear wheel cover assembly (4).

3. The vehicle body side structure according to claim 2, characterized in that: The roof side beam assembly (1) further comprises a cross beam mounting plate (12) arranged on the main body section (100), the cross beam mounting plate (12) comprising a root plate body (120) overlapped on the main body section (100), and a main plate body (121) extending from the root plate body (120) toward the inner side of the vehicle, the main plate body (121) being used for connecting the roof cross beam of the vehicle roof.

4. The vehicle body side structure according to claim 3, characterized in that: The front and rear edge portions of the main board body (121) are both formed with side flanges (122), and / or the main board body (121) is provided with a long hole (123).

5. The vehicle body side structure according to claim 3, characterized in that: It also includes a B-pillar assembly (3) whose top is connected to the main body section (100); the crossbeam mounting plate (12) includes a middle crossbeam mounting plate (12a) located above the B-pillar assembly (3), and a rear crossbeam mounting plate (12b) located at the rear of the main body section (100).

6. The vehicle body side structure according to claim 5, characterized in that: The B-pillar assembly (3) includes a B-pillar inner plate (30) whose top end overlaps the outside of the main body section (100), and a beam support plate (32) supported between the B-pillar inner plate (30) and the bottom of the main body section (100); The root plate body (120) of the middle cross beam mounting plate (12a) is overlapped on the inner side of the main body section (100).

7. The vehicle body side structure according to claim 2, characterized in that: The A-pillar assembly (2) comprises an A-pillar inner plate (20) and an A-pillar reinforcement plate (21) that are connected to each other by buckling inside and outside, the A-pillar inner plate (20) is wrapped around the inner side of the main body section (100), and the A-pillar reinforcement plate (21) is wrapped around the outer side of the main body section (100); The roof side beam assembly (1) further includes an A-pillar connecting plate (11) provided at the top of the front end of the main body section (100), and the two ends of the A-pillar connecting plate (11) are respectively overlapped on the A-pillar inner plate (20) and the A-pillar reinforcement plate (21).

8. The vehicle body side structure according to any one of claims 1 to 7, characterized in that: The rear wheel cover assembly (4) includes a wheel cover inner plate (42) and a beam mounting plate (40) buckled on the top of the wheel cover inner plate (42); A cavity is formed between the beam body mounting plate (40) and the wheel cover inner plate (42), and a wheel cover reinforcement plate (400) is provided in the cavity; the end of the side beam body (10) is inserted into the cavity through the beam body mounting plate (40) and abuts against the wheel cover reinforcement plate (400).

9. The vehicle body side structure according to claim 8, characterized in that: A side support plate (41) is provided on the side beam body (10) above the beam body mounting plate (40), the middle portion of the side support plate (41) is connected to the outer side of the side beam body (10), and both ends of the side support plate (41) are in contact with the side panel (5) above the rear wheel cover assembly (4).

10. A vehicle, characterized in that: The vehicle adopts the vehicle body side structure according to any one of claims 1 to 9.

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