Vehicle body framework structure and vehicle

Abstract

The utility model relates to the technical field of vehicle body structures, and particularly provides a vehicle body framework structure and a vehicle. The vehicle body framework structure comprises top cover edge beam assemblies arranged on the two sides of the top of a vehicle respectively and a plurality of top cover cross beams arranged between the two top cover edge beam assemblies. The top cover edge beam assembly comprises edge beam bodies made of pipe profiles, and the top cover cross beams are connected between the edge beam bodies on the two sides and arranged in the front-back direction of the vehicle at intervals. According to the vehicle body framework 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 profile structure similar to a side wall assembly, so that a frame at the top of a 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 car body top framework can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle body structures, and in particular to a vehicle body frame 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 its safety performance. When a vehicle is involved in a side collision or rolls over, if the side panel's roof edge beam assembly, roof crossbeam, etc., break or severely deform, it will cause serious injury to the people inside the cabin. Therefore, the strength of the vehicle's skeleton structure, especially the top skeleton structure, is crucial to the vehicle's safety.

[0003] In the existing technology, the roof side beams, roof cross beams, etc. are mostly welded and assembled by stamping 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 connection parts between the roof side beams and roof cross beams, and between the roof side beams and the A-pillar assembly and the B-pillar assembly. The installation of the roof on the top of the vehicle body frame and the installation between the various connecting structural parts and the panels of the beam body also require a large amount of welding, screwing and other operations.

[0004] The existing design mentioned above has a large number of structural parts, a complex welding and assembly process, and is not conducive to achieving a lightweight design of the body frame structure; therefore, it is necessary to research and improve the body side and its top structure in order to optimize its design and performance. Utility Model Content

[0005] In view of this, the present invention aims to provide a vehicle body frame structure to reduce the number of components of the vehicle body top frame.

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

[0007] A vehicle body frame structure includes roof side beam assemblies respectively arranged on both sides of a vehicle top, and a plurality of roof cross beams arranged between the two roof side beam assemblies;

[0008] The roof side beam assembly includes a side beam body made of a tubular profile. Each roof cross beam is connected between the side beam bodies on both sides and is arranged at intervals in the front-rear direction of the vehicle.

[0009] Furthermore, the roof crossbeam includes a front crossbeam located at the top of the front windshield, and the end of the front crossbeam is arranged at the connection between the A-pillar assembly and the side beam body; the A-pillar assembly includes an A-pillar inner panel, and the top of the A-pillar inner panel is provided with a rear protrusion protruding toward the rear of the vehicle and an inner protrusion protruding toward the inside of the vehicle; the rear protrusion is overlapped on the side beam body, and the inner protrusion is overlapped on the front crossbeam.

[0010] Furthermore, the A-pillar assembly also includes an A-pillar reinforcement plate that is buckled onto the outer side of the A-pillar inner panel, the A-pillar inner panel is wrapped around the inner side of the side beam body, and the A-pillar reinforcement plate is wrapped around the outer side of the side beam body; the roof side beam assembly also includes an A-pillar connecting plate arranged at the top front end of the side beam body, and the two ends of the A-pillar connecting plate are respectively overlapped on the A-pillar inner panel and the A-pillar reinforcement plate.

[0011] Furthermore, the roof cover crossbeam includes a middle crossbeam and a rear crossbeam, and the roof cover side beam assembly also includes a plurality of crossbeam mounting plates arranged on the side beam body; the crossbeam mounting plate has a root plate body overlapped on the side beam body, 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 middle crossbeam or the rear crossbeam.

[0012] Furthermore, the middle cross beam and the rear cross beam are both roll-formed from tubular profiles, and the cross sections of the middle cross beam and the rear cross beam are both roll-formed into rectangles.

[0013] Furthermore, it also includes a B-pillar assembly whose top is connected to the side beam body, and the cross beam mounting plate includes a middle cross beam mounting plate located above the B-pillar assembly; the B-pillar assembly includes a B-pillar inner plate whose top is overlapped on the outside of the side beam body, and a beam support plate supported between the B-pillar inner plate and the bottom of the side beam body; the middle cross beam mounting plate is two upper and lower buckled together, and the end of the middle cross beam is inserted between the main boards of the two middle cross beam mounting plates.

[0014] Furthermore, it also includes a rear wheel cover assembly, which includes a wheel cover inner panel and a beam body mounting plate buckled on the top of the wheel cover inner panel; a cavity is formed between the beam body mounting plate and the wheel cover inner panel, and a wheel cover reinforcement plate is provided in the cavity; the tail end of the side beam body is inserted into the cavity through the beam body mounting plate and abuts against the wheel cover reinforcement plate.

[0015] Furthermore, it also includes a rear side panel assembly located above the rear wheel cover assembly; a side panel support plate is provided on the side beam body above the beam body mounting plate, the middle part 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 abutted against the rear side panel assembly.

[0016] Furthermore, the top of the rear side panel assembly, as well as the top of the B-pillar assembly and the top of the A-pillar assembly of the vehicle are all provided with mounting portions, and the roof of the vehicle is detachably connected to the mounting portions.

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

[0018] The vehicle body frame structure of the present invention is provided with two side beam bodies on both sides of the vehicle top, and the side beam bodies adopt a tubular profile structure similar to the side panel assembly, which not only forms a frame for the side panel top, but also can play a protective role as a roll cage of the vehicle; 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 of the vehicle body top frame.

[0019] In addition, a front cross member is installed at the junction of the side beam body and the A-pillar assembly. The rear and inner protrusions formed on the top of the A-pillar inner panel of the A-pillar assembly form a "T"-shaped integrated connection structure at the top of the A-pillar inner panel, which can simultaneously connect the side beam body and the front cross member, thereby reliably connecting the side beam body, the front cross member and the A-pillar assembly into one. Furthermore, the A-pillar reinforcement plate in the A-pillar assembly, in conjunction with the A-pillar inner panel and the A-pillar connecting plate, tightly wraps the front end of the side beam body, greatly enhancing the stability of the connection between the side beam body and the A-pillar assembly.

[0020] Furthermore, the central and rear crossmembers are connected by overlapping crossmember mounting plates. Each roof crossmember and the side beams on either side form the roof's framework, providing strong support for the vehicle's roof and a secure foundation for roof installation. Both the central and rear crossmembers are roll-formed from tubular profiles, eliminating the need for multiple interlocking panels. This further reduces the number of components in the vehicle's frame structure while maintaining excellent structural strength.

[0021] Another object of the present invention is to provide a vehicle that adopts the vehicle body frame structure of the present invention. The vehicle of the present invention has the technical advantages possessed by the above-mentioned vehicle body frame 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 three-dimensional structure of the vehicle body frame 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 1 The cross-section of the part indicated by AA in the middle;

[0026] Figure 4 for Figure 1 A partial enlarged view of the part shown in E;

[0027] Figure 5 for Figure 4 A schematic diagram of the structure of each component shown on one side of the vehicle interior;

[0028] Figure 6 for Figure 1 Cross-sectional view of the part indicated by section BB;

[0029] Figure 7 for Figure 1 Cross-section of the part indicated by CC in the middle;

[0030] Figure 8 for Figure 1 Cross-sectional view of the part indicated by DD in the middle;

[0031] Figure 9 for Figure 1 Schematic diagram of the structure of the components in the area indicated by F on the exterior side of the vehicle;

[0032] Figure 10 for Figure 9 A schematic diagram of the structure of each component shown on one side of the vehicle interior;

[0033] Figure 11 for Figure 1 Schematic diagram of the structure of the components indicated by G in the middle on the vehicle exterior side;

[0034] Figure 12 for Figure 1 Schematic diagram of the cross-sectional structure of the part indicated by HH;

[0035] Figure 13 This is a schematic structural diagram of the vehicle body frame structure according to an embodiment of the present utility model after being assembled with a top cover;

[0036] Figure 14 for Figure 13 Cross-sectional view of the part shown in II.

[0037] Description of reference numerals:

[0038] 1. Roof side beam assembly; 10. Side beam body; 100. Main section; 101. Lower extension section; 11. A-pillar connecting plate; 12. Crossbeam mounting plate; 120. Root plate; 121. Main plate; 122. Side flange; 123. Long strip hole; 12a. Center crossbeam mounting plate; 12b. Rear crossbeam mounting plate;

[0039] 2. A-pillar assembly; 20. A-pillar inner panel; 200. Main body; 201. Rear protrusion; 202. Inner protrusion; 21. A-pillar reinforcement plate;

[0040] 3. B-pillar assembly; 30. B-pillar inner panel; 31. B-pillar reinforcement plate; 32. Beam support plate;

[0041] 4. Rear wheelhouse assembly; 40. Beam mounting plate; 400. Wheelhouse reinforcement plate; 41. Side panel support plate; 42. Wheelhouse inner panel; 43. Wheelhouse outer panel;

[0042] 5. Rear side panel assembly; 50. Side panel outer panel; 51. Side panel inner panel; 52. Gusset plate;

[0043] 60, front crossbeam; 600, upper plate; 601, lower plate; 61, middle crossbeam; 62, rear crossbeam;

[0044] 70, front top cover; 71, middle top cover; 72, rear top cover; 720, upper top cover; 721, side cover;

[0045] 8. Mounting bolt; 801. First mounting hole; 802. Second mounting hole; 803. Third mounting hole. DETAILED DESCRIPTION

[0046] 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.

[0047] 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".

[0048] 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.

[0049] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0050] Example 1

[0051] This embodiment relates to a vehicle body frame structure that can reduce the number of components of the vehicle body top frame; an exemplary structure thereof is as follows Figure 1 and Figure 2 shown.

[0052] Generally speaking, the vehicle body frame structure comprises a roof side rail assembly 1, arranged on either side of the vehicle roof, and a plurality of roof cross members disposed between the two roof side rail assemblies 1. The roof side rail assembly 1 comprises a side rail body 10 made of tubular material. The aforementioned roof cross members are connected between the side rail bodies 10 on both sides and are spaced apart in the vehicle's front-to-rear direction.

[0053] It should be pointed out that, based on the above-mentioned overall design concept, the technical solution of the present invention can adopt a variety of different specific implementation structures, forms or configuration sequences. For example, the above-mentioned roof crossbeam can be directly welded to the side beam body 10, or it can be connected by plugging, screwing or welding through a plate structure such as the crossbeam mounting plate 12; the specific setting sequence and assembly method of the roof side beam assembly 1, the A-pillar assembly 2, the rear wheel cover assembly 4 and each roof crossbeam 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 among the many schemes that can be formed by the above-mentioned various combinations and their variations. 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 their variations, as well as the specific implementation scheme of this embodiment, are all within the scope of protection of the present utility model.

[0054] Specifically, the front and rear ends of the side beam body 10 of this embodiment are respectively connected to the A-pillar assembly 2 and the rear wheel housing assembly 4 on the same side; the A-pillar assembly 2, the rear wheel housing assembly 4, and the B-pillar assembly 3 and the rear wheel housing assembly 4 described below all constitute part of the vehicle body skeleton structure of this embodiment. The side beam body 10 includes a main section 100 and a lower extension section 101 connected front to back. The main section 100 is arranged along the front-to-back direction of the vehicle body, and the lower extension section 101 is bent downward from the rear end of the main section 100. The front end of the main section 100 is connected to the A-pillar assembly 2, and the bottom end of the lower extension section 101 (i.e., the rear end of the side beam body 10, also referred to as the tail end) is connected to the rear wheel housing assembly 4. The side beam body 10 is divided into two sections. The main section 100 serves as the side beam frame of the roof, and the lower extension section 101 can form a strong support between the rear wheel housing assembly 4 and the roof, thereby ensuring that the roof side beam assembly 1 has a good protective effect.

[0055] There are, of course, numerous different structural options available for the specific number and location of the roof crossbeams. In this embodiment, the roof crossbeams include a front crossbeam 60, a middle crossbeam 61, and a rear crossbeam 62, spaced apart from each other. The front crossbeam 60 is positioned atop the front windshield, with its end located at the junction of the A-pillar assembly 2 and the side member body 10.

[0056] like Figures 3 to 5 As 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 interlocked and connected. The A-pillar inner panel 20 is wrapped around the inner side of the main section 100 of the side beam body 10, and the A-pillar reinforcement panel 21 is wrapped around the outer side of the main section 100 of the side beam body 10. At the same time, the roof side beam assembly 1 also includes an A-pillar connecting plate 11 disposed at the top front end of the side beam body 10. The two ends of the A-pillar connecting plate 11 are respectively overlapped on 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 plate 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. At the same time, an A-pillar connecting plate 11 is provided at the top of the front end of the main section 100. The components in this part can be welded and fixedly connected by a carbon dioxide shielded welding process. The setting of the A-pillar reinforcement plate 21 in the A-pillar assembly 2, in conjunction with the A-pillar inner panel 20 and the A-pillar connecting plate 11, tightly wraps the front end of the side beam body 10, which can greatly improve the stability of the connection between the side beam body 10 and the A-pillar assembly 2.

[0057] At the same time, the top of the A-pillar inner panel 20 of this embodiment is provided with a rear protrusion 201 protruding toward the rear of the vehicle and an inner protrusion 202 protruding toward the inside of the vehicle. Furthermore, the rear protrusion 201 overlaps the side beam body 10, and the inner protrusion 202 overlaps the front cross member 60. The front cross member 60 is provided at the location where the side beam body 10 connects to the A-pillar assembly 2. Utilizing the A-pillar inner panel 20 of the A-pillar assembly 2, the rear protrusion 201 and the inner protrusion 202 at the top of the A-pillar inner panel 20 are integrally connected with the main body 200 of the A-pillar inner panel 20, forming a "T"-shaped integral connection structure. This structure can simultaneously connect the side beam body 10 and the front cross member 60, thereby reliably connecting the side beam body 10, the front cross member 60, and the A-pillar assembly 2 as a whole.

[0058] To facilitate the connection of the middle crossbeam 61 and the rear crossbeam 62 to the side beam body 10, the roof side beam assembly 1 of this embodiment also includes a plurality of crossbeam mounting plates 12 disposed on the side beam body 10. Furthermore, the crossbeam mounting plates 12 include a root plate 120 that overlaps the main body 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 of the vehicle roof. The provision of the crossbeam mounting plates 12 on the main body section 100 provides convenient assembly and connection conditions for the installation of the roof crossbeams, facilitating the connection and installation between the ends of the roof crossbeams and the side beam body 10. Specifically, the crossbeam mounting plates 12 on each side beam body 10 include a middle crossbeam mounting plate 12a and a rear crossbeam mounting plate 12b, spaced apart from each other in the front and rear directions. The middle crossbeam mounting plate 12a is used to connect to the middle crossbeam 61, while the rear crossbeam mounting plate 12b is used to connect to the rear crossbeam 62. The middle crossbeam 61 and the rear crossbeam 62 are arranged and fixedly connected through the crossbeam mounting plates 12. Each roof crossbeam and the side beam bodies 10 on both sides constitute the skeleton of the roof, which can provide strong support for the top of the vehicle and provide a stable installation foundation for the laying and fixing of the roof.

[0059] 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.

[0060] 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.

[0061] There are of course many different structural options for the specific configuration of each roof crossbeam. In this embodiment, based on the spatial conditions and connection requirements at the top of the front windshield, the front crossbeam 60 preferably adopts a split plate structure with upper and lower panels that snap together, including an upper panel 600 and a lower panel 601 that snap together. The upper panel 600 and the lower panel 601 are preferably stamped and formed from high-strength steel plates and welded together. The middle crossbeam 61 and the rear crossbeam 62 are preferably roll-formed from tubular profiles, and the tubular profiles are preferably made of HC 600 / 980QP. The specific roll-formed shape can be a flat oval or a flat oval. Figure 6 、 Figure 7 As shown, the cross-sections of the central cross-member 61 and the rear cross-member 62 are roll-formed into rectangular shapes. Both the central cross-member 61 and the rear cross-member 62 are roll-formed from tubular profiles, eliminating the need for a separate structure consisting of multiple interlocking panels. This further reduces the number of components in the vehicle body frame structure while providing excellent structural strength. The rectangular cross-section not only ensures a standardized appearance but also provides excellent structural stability.

[0062] The vehicle body frame structure of this embodiment also includes a B-pillar assembly 3 whose top is connected to the side beam body 10; in view of the setting of the vehicle B-pillar assembly 3, the top of the B-pillar assembly 3 can be connected to the middle position of the main section 100 to achieve good support for the side beam body 10; then the middle crossbeam mounting plate 12a in the crossbeam mounting plate 12 is correspondingly set at a position above the B-pillar assembly 3, and the middle crossbeam in the roof crossbeam and the B-pillar assembly 3 will converge at the same position on the main section 100, and the middle crossbeam and the B-pillar assembly 3 will form a door-shaped frame, which helps to enhance the structural stability of the middle crossbeam.

[0063] Specifically, if Figures 8 to 10 As shown, the B-pillar assembly 3 of this embodiment includes a B-pillar inner panel 30 and a B-pillar reinforcement panel 31 that are interlocked together, and a beam support panel 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 panel 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 part.

[0064] like Figure 11 As shown, similar to the arrangement of the end of the middle cross beam 61, a rear cross beam mounting plate 12b is welded to the rear of the main section 100 of the side beam body 10, and the end of the rear cross beam 62 is overlapped and welded to the rear cross beam mounting plate 12b. The rear cross beam mounting plate 12b here can be one or two that are buckled together.

[0065] like Figure 1 Combined with Figure 12 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.

[0066] In addition, in this embodiment, a side panel support plate 41 is provided on the side rail body 10 above the beam mounting plate 40. The middle portion of the side panel support plate 41 is connected to the outside of the side rail 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 rear side panel assembly 5 of this embodiment includes a side panel inner panel 51 and a side panel outer panel 50 disposed outside the side panel inner panel 51. The side panel support plate 41 abuts against the side panel inner panel 51. The side panel outer panel 50 and the side panel inner panel 51 are overlapped at their tops, and a gusset plate 52 is provided above them; the gusset plate 52 serves to secure the two panels and also provides a decorative effect.

[0067] A side panel support plate 41 is arranged between the side panel 5 and the lower extension section 101. The structurally stable side beam body 10 is used as a basis to form effective support for the side panel 5, thereby improving the structural stability of the side panel 5 above the rear wheel cover assembly 4. Moreover, since the side panel support plate 41 is an overall "J"-shaped structure, it forms an arched support between the lower extension section 101 and the side panel 5. When the side panel 5 suffers an external collision, the side panel support plate 41 can also exert a certain buffering effect.

[0068] To sum up, the vehicle body frame 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 the side panel assembly, which not only forms a frame for the top of the side panel, but also can play a protective role as a roll cage of the vehicle; the tubular profile beam 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 components of the top frame of the vehicle body.

[0069] In addition, if Figure 13 、 Figure 14 As shown, to facilitate assembly of the roof onto the vehicle's frame structure, mounting portions are provided on the top of the rear side panel assembly 5, the top of the A-pillar assembly 2, and the top of the vehicle's B-pillar assembly 3. The vehicle's roof is detachably connected to these mounting portions. The provision of mounting portions on the tops of the rear side panel assembly 5, the A-pillar assembly 2, and the B-pillar assembly 3 facilitates installation of the roof, allowing the roof to be detachably mounted. When the roof is removed, the vehicle can be used as a convertible.

[0070] In this embodiment, the mounting portion is in the form of a mounting hole, and the top cover can be screwed into the corresponding mounting hole using mounting bolts 8. A first mounting hole 801 is defined on the A-pillar inner panel 20; the B-pillar assembly 3 includes a B-pillar reinforcement plate 31 located outside the B-pillar inner panel 30. The top of the B-pillar reinforcement plate 31 bends toward the side member body 10 and overlaps the top of the B-pillar inner panel 30. The bent portion of the B-pillar reinforcement plate 31 forms a platform, on which a second mounting hole 802 is defined; and four third mounting holes 803 are spaced apart at the top of the rear side panel assembly 5. At the same time, in order to facilitate disassembly and assembly, the top cover of this embodiment is composed of a front top cover 70, a middle top cover 71 and a rear top cover 72 which are spliced ​​together front and back, wherein the front top cover 70 is arranged between the front cross beam 60 and the middle cross beam 61, the middle top cover 71 is arranged between the middle cross beam 61 and the rear cross beam 62, and the rear top cover 72 extends from the rear cross beam 62 toward the rear of the vehicle to the tail end of the top cover of the vehicle; the rear top cover 72 includes an upper top cover 720 located on the top of the vehicle, and side cover plates 721 bent and extended downward from both sides of the upper top cover 720, and the bottom of the side cover plates 721 are screwed to the third mounting holes 803 by mounting bolts 8; the above-mentioned front top cover 70 and middle top cover 71 are installed and fixed through the first mounting holes 801 and the second mounting holes 802 respectively.

[0071] Example 2

[0072] This embodiment relates to a vehicle, which adopts the vehicle body frame structure provided in the first embodiment.

[0073] The vehicle body frame 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 cross beam mounting plate 12, the B-pillar assembly 3, and the beam body mounting plate 40 and the side support plate 41 on the rear wheel cover assembly 4 are firmly welded to the side beam body 10, and each roof cross beam is welded to the corresponding cross beam mounting plate 12 or the top of the A-pillar assembly 2, forming a solid vehicle body top frame structure.

[0074] 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.

[0075] Overall, by setting the above-mentioned body frame structure on the side of the vehicle, 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.

[0076] 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.

[0077] 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 frame structure, characterized in that: It comprises roof side beam assemblies (1) respectively arranged on both sides of the top of the vehicle, and a plurality of roof cross beams arranged between the two roof side beam assemblies (1); The roof side beam assembly (1) comprises a side beam body (10) made of a tubular profile, and each roof cross beam is connected between the side beam bodies (10) on both sides and is arranged at intervals in the front-rear direction of the vehicle.

2. The vehicle body frame structure according to claim 1, wherein: The roof crossbeam includes a front crossbeam (60) located at the top of the front windshield, and an end of the front crossbeam (60) is arranged at the connection between the A-pillar assembly (2) and the side beam body (10); The A-pillar assembly (2) includes an A-pillar inner plate (20), the top of the A-pillar inner plate (20) is provided with a rear protrusion (201) protruding toward the rear of the vehicle, and an inner protrusion (202) protruding toward the inner side of the vehicle; the rear protrusion (201) is overlapped on the side beam body (10), and the inner protrusion (202) is overlapped on the front cross beam (60).

3. The vehicle body frame structure according to claim 2, wherein: The A-pillar assembly (2) further includes an A-pillar reinforcement plate (21) that is fastened to the outside of the A-pillar inner plate (20), the A-pillar inner plate (20) is wrapped around the inside of the side beam body (10), and the A-pillar reinforcement plate (21) is wrapped around the outside of the side beam body (10); The roof side beam assembly (1) further includes an A-pillar connecting plate (11) provided at the top of the front end of the side beam body (10), 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).

4. The vehicle body frame structure according to claim 1, wherein: The roof crossbeam includes a middle crossbeam (61) and a rear crossbeam (62), and the roof side beam assembly (1) also includes a plurality of crossbeam mounting plates (12) provided on the side beam body (10); The crossbeam mounting plate (12) comprises a root plate body (120) overlapped on the side beam body (10), and a main plate body (121) extending from the root plate body (120) toward the inner side of the vehicle, wherein the main plate body (121) is used to connect the middle crossbeam (61) or the rear crossbeam (62).

5. The vehicle body frame structure according to claim 4, characterized in that: The middle cross beam (61) and the rear cross beam (62) are both formed by roll forming of a tube profile, and the cross sections of the middle cross beam (61) and the rear cross beam (62) are both rolled into a rectangular shape.

6. The vehicle body frame structure according to claim 4, characterized in that: It also includes a B-pillar assembly (3) whose top is connected to the side beam body (10), and the cross beam mounting plate (12) includes a middle cross beam mounting plate (12a) located above the B-pillar assembly (3); The B-pillar assembly (3) includes a B-pillar inner plate (30) whose top end overlaps the outer side of the side beam body (10), and a beam body support plate (32) supported between the B-pillar inner plate (30) and the bottom of the side beam body (10); The middle cross beam mounting plates (12a) are two plates buckled together in an upper and lower manner, and the end of the middle cross beam (61) is inserted between the main plates (121) of the two middle cross beam mounting plates (12a).

7. The vehicle body frame structure according to any one of claims 1 to 6, characterized in that: The vehicle also includes a rear wheel cover assembly (4), wherein 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 tail 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).

8. The vehicle body frame structure according to claim 7, characterized in that: Also included is a rear side panel assembly (5) located above the rear wheel cover assembly (4); 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) are in contact with the rear side panel assembly (5).

9. The vehicle body frame structure according to claim 8, characterized in that: The top of the rear side panel assembly (5), the top of the B-pillar assembly (3) and the top of the A-pillar assembly (2) of the vehicle are all provided with mounting portions, and the roof of the vehicle is detachably connected to the mounting portions.

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

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