Vehicle body front structure and vehicle

Abstract

The utility model discloses a vehicle body front structure and a vehicle, the vehicle body front structure comprises a dash panel, a dash panel reinforcing cross beam, a front longitudinal beam and a bottom reinforcing plate, the dash panel reinforcing cross beam is arranged at the lower part of the dash panel and is arranged along the left-right direction; the two front longitudinal beams are arranged in the left-right direction and connected with the left end and the right end of the dash panel reinforcing cross beam correspondingly. The bottom reinforcing plate is arranged at the bottom of the front longitudinal beam and the bottom of the dash panel, and the bottom reinforcing plate is connected with the front longitudinal beam, the dash panel reinforcing cross beam and the dash panel. According to the vehicle body front portion structure, the rigidity and strength of the vehicle body front portion can be effectively enhanced, the invasion amount of a passenger compartment in the collision process is reduced, and therefore the collision safety of a vehicle is improved.

Description

Technical Field

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

[0002] With the continuous improvement of vehicle safety technology, the front structure of the vehicle body plays an increasingly important role in ensuring vehicle collision safety. Traditional front structures often fail to meet the safety requirements of vehicles in frontal and offset collisions, increasing the risk of extensive intrusion into the passenger compartment and resulting in occupant injury. Therefore, improvements are needed. Utility Model Content

[0003] The first aspect of this utility model proposes a front structure for a vehicle body that can effectively reduce the intrusion of the passenger compartment during a collision and improve the overall vehicle collision safety.

[0004] According to a first aspect embodiment of the present invention, a front body structure includes: a front bulkhead and a front bulkhead reinforcing crossbeam, the front bulkhead reinforcing crossbeam being disposed at the lower part of the front bulkhead and arranged in a left-right direction; two front longitudinal beams arranged in a left-right direction, the two front longitudinal beams being connected to the left and right ends of the front bulkhead reinforcing crossbeam respectively; and a bottom reinforcing plate disposed at the bottom of the front longitudinal beams and the front bulkhead, the bottom reinforcing plate being connected to the front longitudinal beams, the front bulkhead reinforcing crossbeam, and the front bulkhead.

[0005] According to the front structure of the vehicle body according to the first aspect of the present invention, by setting a bottom reinforcing plate at the connection between the front longitudinal beam and the front bulkhead, the overall rigidity of the connection between the front longitudinal beam and the front bulkhead can be effectively improved, the intrusion of the passenger compartment during a collision can be effectively reduced, and since the bottom reinforcing plate is connected to the front longitudinal beam, the front bulkhead reinforcing crossbeam and the front bulkhead, it can effectively disperse and transmit the impact force during a collision, thereby improving the safety of the vehicle during a collision.

[0006] According to some embodiments of the present invention, the edge of the bottom reinforcing plate is formed with a first connecting flange, a second connecting flange and a third connecting flange, the first connecting flange being connected to the front longitudinal beam, the second connecting flange being connected to the front bulkhead reinforcing beam, and the third connecting flange being connected to the front bulkhead.

[0007] According to some embodiments of the present invention, the front longitudinal beam includes a front section and a rear section, the rear section of the front longitudinal beam has a curved section, and the front bulkhead crossbeam is connected to the curved section.

[0008] The bottom reinforcing plate is located at the bottom of the curved section, and / or the front longitudinal beam includes an outer plate and an inner plate connected in the left-right direction, and the inner plate of the front longitudinal beam is provided with a front longitudinal beam inner plate reinforcing bracket at the location of the curved section.

[0009] According to some embodiments of the present invention, the front bulkhead reinforcing beam includes a first reinforcing section and two second reinforcing sections. The first reinforcing section extends in the left-right direction, and the two second reinforcing sections are respectively connected to the left and right sides of the first reinforcing section. The second reinforcing section connected to the left side extends forward at an angle from right to left, and the second reinforcing section connected to the right side extends forward at an angle from left to right.

[0010] The front structure of the vehicle body includes a torque box, which is located at the left and right ends of the front bulkhead. The edge of the second reinforcing section forms a fourth connecting flange, a fifth connecting flange, and a sixth connecting flange. The fourth connecting flange is connected to the bottom reinforcing plate, the fifth connecting flange is connected to the front longitudinal beam, and the sixth connecting flange is connected to the torque box.

[0011] According to some embodiments of the present utility model, the front longitudinal beam includes a front section and a rear section, the front section of the front longitudinal beam is connected to the front side of the rear section of the front longitudinal beam, and the rear section of the front longitudinal beam is connected to the front bulkhead reinforcing beam.

[0012] The front section of the front longitudinal beam is made of a first material, and the rear section of the front longitudinal beam is made of a second material, wherein the strength of the second material is greater than that of the first material.

[0013] According to some embodiments of the present invention, the wall thickness of the front section of the front longitudinal beam is the same as the wall thickness of the rear section of the front longitudinal beam.

[0014] According to some embodiments of the present invention, the front structure of the vehicle body includes a mount, the front section of the front longitudinal beam has an opening, and the mount is fixed to the front section of the front longitudinal beam and located at the opening.

[0015] According to some embodiments of the present invention, the front longitudinal beam includes a front longitudinal beam outer plate and a front longitudinal beam inner plate connected in the left-right direction. A front longitudinal beam reinforcing beam is provided between the front longitudinal beam outer plate and the front longitudinal beam inner plate. The front end of the front longitudinal beam reinforcing beam extends forward beyond the suspension, and the rear end of the front longitudinal beam reinforcing beam extends backward beyond the connection position between the front section and the rear section of the front longitudinal beam. A first weakening groove is provided on the front longitudinal beam reinforcing beam, and the first weakening groove is located on the upper side and / or lower side of the front longitudinal beam reinforcing beam.

[0016] According to some embodiments of the present invention, the front structure of the vehicle body includes a front floor, a front bulkhead connected to the front end of the front floor, a central channel protruding upward is formed on the front floor, the central channel is located in the middle of the front floor in the left-right direction, a central channel reinforcing longitudinal beam is provided on the front floor, the central channel reinforcing longitudinal beam is provided on the upper side of the central channel and extends in the front-rear direction, and the front end of the central channel and the front end of the central channel reinforcing longitudinal beam are both connected to the front bulkhead;

[0017] The central channel reinforcing longitudinal beam consists of two beams arranged in the left-right direction, and / or the cross-section of the central channel reinforcing longitudinal beam is U-shaped.

[0018] The second aspect of this utility model proposes a vehicle.

[0019] The vehicle according to a second aspect of the present invention includes: the aforementioned front body structure.

[0020] According to the second aspect of the present invention, the vehicle can effectively improve the overall rigidity of the connection between the front longitudinal beam and the front bulkhead by setting a bottom reinforcing plate at the connection between the front longitudinal beam and the front bulkhead, which can effectively reduce the intrusion of the passenger compartment during a collision. Furthermore, since the bottom reinforcing plate is connected to the front longitudinal beam, the front bulkhead reinforcing crossbeam, and the front bulkhead, it can effectively disperse and transmit the impact force during a collision, thereby improving the safety of the vehicle during a collision.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 This is a structural schematic diagram of the front structure of a vehicle body according to some embodiments of the present utility model;

[0024] Figure 2 This is a schematic diagram of the front structure of the vehicle body from another angle according to some embodiments of the present utility model;

[0025] Figure 3 This is a schematic diagram of the front structure of the vehicle body from another angle according to some embodiments of the present utility model;

[0026] Figure 4 This is a partial structural schematic diagram of the front structure of a vehicle body according to some embodiments of the present utility model;

[0027] Figure 5This is a schematic diagram of the overlapping structure of the front bulkhead reinforcing crossbeam and longitudinal beam according to some embodiments of the present utility model;

[0028] Figure 6 This is a partial schematic diagram of the overlapping structure of the front panel reinforcing crossbeam and longitudinal beam according to some embodiments of the present utility model;

[0029] Figure 7 This is an exploded schematic diagram of the overlapping structure of the front bulkhead reinforcing crossbeam and the front longitudinal beam according to some embodiments of the present utility model;

[0030] Figure 8 This is a schematic diagram of the bottom reinforcing plate according to some embodiments of the present invention;

[0031] Figure 9 This is a structural schematic diagram of the front bulkhead reinforcing beam according to some embodiments of the present utility model;

[0032] Figure 10 This is a schematic diagram of the assembly structure of the front longitudinal beam inner plate reinforcing bracket and the front longitudinal beam inner plate according to some embodiments of the present utility model.

[0033] Figure 11 This is an exploded structural diagram of the front longitudinal beam inner plate reinforcing bracket and the front longitudinal beam inner plate according to some embodiments of the present utility model.

[0034] Figure 12 This is an exploded schematic diagram of the front longitudinal beam and the front bulkhead reinforcing beam according to some embodiments of the present utility model;

[0035] Figure 13 This is a structural schematic diagram of the front longitudinal beam inner plate reinforcing bracket according to some embodiments of the present utility model;

[0036] Figure 14 This is an assembly diagram of the left longitudinal beam and its corresponding suspension according to some embodiments of the present invention;

[0037] Figure 15 This is a schematic diagram showing the separation of the left longitudinal beam and the corresponding suspension according to some embodiments of the present invention;

[0038] Figure 16 This is a schematic diagram of the internal structure of the left front longitudinal beam according to some embodiments of the present invention;

[0039] Figure 17 This is a structural schematic diagram of the interior of the left front longitudinal beam from another angle according to some embodiments of the present invention;

[0040] Figure 18 This is a partially exploded schematic diagram of the left front longitudinal beam according to some embodiments of the present invention;

[0041] Figure 19This is an exploded view of the left front longitudinal beam according to some embodiments of the present invention;

[0042] Figure 20 This is a structural schematic diagram of the left front longitudinal beam reinforcement beam according to some embodiments of the present utility model;

[0043] Figure 21 This is a schematic diagram of the installation of the right longitudinal beam and the corresponding suspension according to some embodiments of the present utility model;

[0044] Figure 22 This is a schematic diagram showing the separation of the right longitudinal beam and the corresponding suspension according to some embodiments of the present invention;

[0045] Figure 23 This is a schematic diagram of the internal structure of the right front longitudinal beam according to some embodiments of the present invention;

[0046] Figure 24 This is a partially exploded schematic diagram of the right front longitudinal beam according to some embodiments of the present invention;

[0047] Figure 25 This is an exploded view of the right front longitudinal beam according to some embodiments of the present invention;

[0048] Figure 26 This is a structural schematic diagram of the right front longitudinal beam reinforcement beam according to some embodiments of the present utility model;

[0049] Figure 27 This is a schematic diagram of the suspension mounting bracket structure corresponding to the right suspension according to some embodiments of the present utility model;

[0050] Figure 28 This is a diagram showing the overlapping structure of the central channel reinforcing longitudinal beam and the front bulkhead reinforcing cross beam according to some embodiments of this utility model;

[0051] Figure 29 This is a schematic diagram of the left and right side of the central channel reinforcement longitudinal beam structure according to some embodiments of the present utility model.

[0052] Figure label:

[0053] 100. Front structure of the vehicle body;

[0054] 11. Front bulkhead; 12. Front bulkhead reinforcing beam; 121. First reinforcing section; 122. Second reinforcing section; 1221. Fourth connecting flange; 1222. Fifth connecting flange; 1223. Sixth connecting flange; 13. Torque box;

[0055] 21. Front longitudinal beam; 211. Front section of front longitudinal beam; 2111. Opening; 2112. Suspension mounting bracket; 212. Rear section of front longitudinal beam; 2121. Bent section; 213. Outer plate of front longitudinal beam; 214. Inner plate of front longitudinal beam; 22. Reinforcing bracket for inner plate of front longitudinal beam; 23. Suspension; 24. Reinforcing beam of front longitudinal beam; 241. First weakening groove; 242. Welding avoidance notch;

[0056] 3. Bottom reinforcing plate; 31. First connecting flange; 32. Second connecting flange; 33. Third connecting flange;

[0057] 41. Front floor; 42. Middle tunnel; 43. Middle tunnel reinforced longitudinal beam. Detailed Implementation

[0058] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0059] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0060] The front structure 100 of the vehicle body according to a first aspect of the present invention is described below with reference to the accompanying drawings.

[0061] like Figures 1-29As shown, the front body structure 100 according to the first aspect embodiment of the present invention includes: a front bulkhead 11, a front bulkhead reinforcing crossbeam 12, a front longitudinal beam 21, and a bottom reinforcing plate 3. The front bulkhead reinforcing crossbeam 12 is disposed at the lower part of the front bulkhead 11 and is arranged in the left-right direction, thereby enhancing the rigidity of the front bulkhead 11. There are two front longitudinal beams 21 arranged in the left-right direction and extending in the front-rear direction. The two front longitudinal beams 21 are respectively connected to the left and right ends of the front bulkhead reinforcing crossbeam 12. The bottom reinforcing plate 3 is disposed at the connection between the front longitudinal beam 21 and the front bulkhead 11 and is located at the bottom of the front longitudinal beam 21 and the front bulkhead 11. The bottom reinforcing plate 3 is connected to the front longitudinal beam 21, the front bulkhead reinforcing crossbeam 12, and the front bulkhead 11.

[0062] In other words, the bottom reinforcing plate 3 is located at the bottom where the front bulkhead 11 connects to the front longitudinal beam 21. This allows the front longitudinal beam 21 to be effectively supported by the bottom reinforcing plate 3 and the force to be transmitted to the front bulkhead 11 when subjected to an external impact. This more effectively transfers the impact load on the front longitudinal beam 21, preventing unnecessary collapse of the front longitudinal beam 21. Furthermore, the bottom reinforcing plate 3 is connected to the front longitudinal beam 21, the front bulkhead reinforcing crossbeam 12, and the front bulkhead 11 on three sides, forming a more stable support structure. In the event of a collision, the bottom reinforcing plate 3 not only increases the load but also strengthens the front longitudinal beam 21. The connection strength between the front longitudinal beam 21 and the front bulkhead 11 is strengthened, which improves the overall rigidity of the structure. It also allows the load of the front longitudinal beam 21 to be transferred to the front bulkhead 11 through the bottom reinforcing plate 3, forming a force transmission path. When the vehicle collides, the impact force is dispersed and transmitted along the connection path of the front longitudinal beam 21, the bottom reinforcing plate 3, the front bulkhead reinforcing crossbeam 12 and the front bulkhead 11, thereby reducing the deformation of the front bulkhead 11 and the front bulkhead reinforcing crossbeam 12 during the collision. This further reduces the risk of the front longitudinal beam 21 being squeezed and intruding into the passenger compartment in large quantities during the collision.

[0063] According to the front body structure 100 of the first aspect of the present invention, by providing a bottom reinforcing plate 3 at the connection between the front longitudinal beam 21 and the front bulkhead 11, the overall rigidity of the connection between the front longitudinal beam 21 and the front bulkhead 11 can be effectively improved, the intrusion of the passenger compartment during a collision can be effectively reduced, and since the bottom reinforcing plate 3 is connected to the front longitudinal beam 21, the front bulkhead reinforcing crossbeam 12 and the front bulkhead 11, it can effectively disperse and transmit the impact force during a collision, thereby improving the safety of the vehicle during a collision.

[0064] like Figure 6 , Figure 7 and Figure 8As shown, according to some embodiments of the present invention, the bottom reinforcing plate 3 has a first connecting flange 31, a second connecting flange 32, and a third connecting flange 33 formed along its edge. The first connecting flange 31 is connected to the front longitudinal beam 21, the second connecting flange 32 is connected to the front bulkhead reinforcing crossbeam 12, and the third connecting flange 33 is connected to the front bulkhead 11. In other words, the bottom reinforcing plate 3 strengthens the pairwise connections between the front bulkhead reinforcing crossbeam 12, the front longitudinal beam 21, and the front bulkhead 11, improves the strength of the front longitudinal beam 21, the front bulkhead reinforcing crossbeam 12, and the front bulkhead 11, reduces the risk of severe deformation of the front bulkhead 11 and the front bulkhead reinforcing crossbeam 12 during a collision, and also improves the strength of the force transmission path, thereby more effectively transmitting the collision load of the front longitudinal beam 21 and reducing the risk of the front longitudinal beam 21 being squeezed and extensively intruding into the passenger compartment during a collision.

[0065] like Figure 8 As shown, according to some embodiments of the present invention, the bottom reinforcing plate 3 is triangular. It can be understood that a triangle has a stabilizing and supporting function, so the bottom reinforcing plate 3 is a stable triangular support structure. It can also allow the impact force of the vehicle during a collision to form two dispersion channels through the triangular structure of the bottom reinforcing plate 3, thereby effectively reducing the risk that the front longitudinal beam 21 will be squeezed and massively intrude into the passenger compartment during a collision.

[0066] like Figure 6 , Figure 7 and Figure 8 As shown, according to some embodiments of the present invention, when the bottom reinforcing plate 3 is triangular, the three sides of the bottom reinforcing plate 3 are respectively formed with the first connecting flange 31, the second connecting flange 32 and the third connecting flange 33.

[0067] like Figure 10 and Figure 11 As shown, according to some embodiments of the present invention, the front longitudinal beam 21 includes a front longitudinal beam front section 211 and a front longitudinal beam front section 212. The front longitudinal beam front section 211 is connected to the front side of the front longitudinal beam front section 212. The front longitudinal beam front section 212 has a curved section 2121. The front bulkhead 11 crossbeam is connected to the curved section 2121. A portion of the bottom reinforcing plate 3 is located at the bottom of the curved section 2121. The front longitudinal beam 21 is divided into a front longitudinal beam section 211 and a front longitudinal beam section 212. The front longitudinal beam section 212 is reinforced by a bottom reinforcing plate 3, thereby ensuring the strength of the front longitudinal beam section 212 and preventing a large amount of the front longitudinal beam section 212 from intruding into the passenger compartment during a collision. At the same time, the force transmission path of the front longitudinal beam 21 is optimized by the structural characteristics of the bending section 2121, so that the front longitudinal beam 21 can distribute the force to the bending section 2121 and the bottom reinforcing plate 3 when it is subjected to a collision, thereby better dispersing energy and reducing the risk of the front longitudinal beam 21 being squeezed and intruding a large amount of energy into the passenger compartment during a collision.

[0068] like Figure 10 , Figure 11 and Figure 12 As shown, according to some embodiments of the present invention, the front longitudinal beam 21 includes an outer front longitudinal beam plate 213 and an inner front longitudinal beam plate 214 connected in the left-right direction. The front structure 100 of the vehicle body also includes a reinforcing bracket 22 for the inner front longitudinal beam plate, which is disposed on the inner front longitudinal beam plate 214 and located in the bending section 2121. The reinforcing bracket 22 improves the strength of the inner front longitudinal beam plate 214 in the bending section 2121, thereby preventing the inner front longitudinal beam plate 214 from bending and collapsing in the bending section 2121. The protection of the bending section 2121 improves the strength of the force transmission path.

[0069] like Figure 7 and Figure 9 As shown, according to some embodiments of this utility model, the front bulkhead reinforcing beam 12 includes a first reinforcing section 121 and two second reinforcing sections 122. The first reinforcing section 121 extends in the left-right direction, and the two second reinforcing sections 122 are respectively connected to the left and right sides of the first reinforcing section 121. The second reinforcing section 122 connected to the left side extends forward at an angle from right to left, and the second reinforcing section 122 connected to the right side extends forward at an angle from left to right. That is to say, the front bulkhead reinforcing beam 12 forms a special "C"-shaped structure through the first reinforcing section 121 and the second reinforcing section 122, that is, the second reinforcing section 122 forms an obtuse angle with the first reinforcing section 121, thereby forming a stable oblique support structure that can effectively support the front longitudinal beams 21 on the left and right sides. In addition, the front bulkhead reinforcing beam 12 is part of the force transmission path. The "C"-shaped structure optimizes the force transmission path of the front bulkhead reinforcing beam 12 and reduces the risk of the front longitudinal beam 21 being squeezed and extensively intruding into the passenger compartment during a collision.

[0070] like Figure 4 and Figure 9 As shown, according to some embodiments of this utility model, the front structure 100 of the vehicle body includes a torque box 13, which is disposed at both ends of the front bulkhead 11. The edge of the second reinforcing section 122 forms a fourth connecting flange 1221, a fifth connecting flange 1222, and a sixth connecting flange 1223. The fourth connecting flange 1221 is connected to the bottom reinforcing plate 3, the fifth connecting flange 1222 is connected to the front longitudinal beam 21, and the sixth connecting flange 1223 is connected to the torque box 13. That is to say, the torque box 13 is connected to the second reinforcing section 122 of the front bulkhead reinforcing beam 12. When the front structure 100 of the vehicle body collides, the torque box 13 will collapse and absorb energy before the front longitudinal beam 21, the front bulkhead 11, and the front bulkhead reinforcing beam 12, thereby protecting the front longitudinal beam 21, the front bulkhead 11, and the front bulkhead reinforcing beam 12.

[0071] like Figure 7 and Figure 10 As shown, according to some embodiments of the present utility model, the front longitudinal beam 21 includes a front longitudinal beam front section 211 and a front longitudinal beam front section 212. The front longitudinal beam front section 211 is connected to the front side of the front longitudinal beam front section 212, and the front longitudinal beam front section 212 is connected to the front bulkhead reinforcing crossbeam 12.

[0072] The front longitudinal beam 211 is made of a first material, while the front longitudinal beam 212 is made of a second material, the strength of which is greater than that of the first material. In other words, in the event of a collision, the front longitudinal beam 211, due to the lower strength of the first material compared to the second material, will collapse and absorb energy first. The front longitudinal beam 212 not only provides support for the front longitudinal beam 211 but also effectively prevents it from collapsing, thus reducing the risk of the front longitudinal beam 21 intruding into the passenger compartment after being compressed.

[0073] like Figure 7 and Figure 10 As shown, according to some embodiments of this utility model, the wall thickness of the front section 211 of the front longitudinal beam is the same as the wall thickness of the front section 212 of the front longitudinal beam. That is, the material strength of the front section 211 of the front longitudinal beam is less than that of the front section 212 of the front longitudinal beam, but the wall thickness of the front section 211 of the front longitudinal beam is the same as that of the front section 212 of the front longitudinal beam. This not only enables orderly collapse and effective support, but also reduces the weight of the parts and reduces the impact of increased intrusion caused by inertia during a collision.

[0074] like Figure 15 As shown, according to some embodiments of the present invention, the front structure 100 of the vehicle body includes a mount 23, and the front section 211 of the front longitudinal beam has an opening 2111. The mount 23 is fixed to the front section 211 of the front longitudinal beam and located at the opening 2111. Since the mount 23 is to be installed in the front longitudinal beam 21 and the mount 23 is a casting that is difficult to crush, in order to achieve the predetermined collapse and bending strategy of the front longitudinal beam 211, the mount 23 is fixed to the opening 2111 of the front section 211. By providing the opening 2111, it is ensured that the front section 211 of the front longitudinal beam is strong in the middle and weak at both ends at the opening 2111. That is, the mount 23 of the front section 211 of the front longitudinal beam does not bend but bends at the edges on both sides of the opening 2111, thereby ensuring the strategy that the front section 211 of the front longitudinal beam can preferentially collapse and absorb energy.

[0075] like Figure 12As shown, according to some embodiments of the present invention, the front structure 100 of the vehicle body further includes a front longitudinal beam reinforcing beam 24. The front longitudinal beam 21 includes a front longitudinal beam outer plate 213 and a front longitudinal beam inner plate 214 connected in the left-right direction. The front longitudinal beam reinforcing beam 24 is located between the front longitudinal beam outer plate 213 and the front longitudinal beam inner plate 214. The front end of the front longitudinal beam reinforcing beam 24 extends forward beyond the suspension 23, and the rear end of the front longitudinal beam reinforcing beam 24 extends backward beyond the connection position between the front section 211 and the front section 212 of the front longitudinal beam. Although the opening 2111 ensures that the front section 211 of the front longitudinal beam can bend smoothly in the area of ​​the suspension 23, it also weakens the rigidity of the front longitudinal beam 21. The front end of the front longitudinal beam reinforcing beam 24 extends forward beyond the suspension 23, and the rear end extends backward beyond the connection position between the front section 211 and the front section 212 of the front longitudinal beam. That is, the front longitudinal beam reinforcing beam 24 covers part of the area of ​​the front section 211 and the front section 212 of the front longitudinal beam. It is connected to both the front section 211 and the front section 212 of the front longitudinal beam, thus increasing the rigidity of the outer plate 213 of the front longitudinal beam.

[0076] like Figure 5 , Figure 6 and Figure 11 As shown, according to some embodiments of the present invention, the front longitudinal beam 212 has a curved section 2121, the front bulkhead reinforcing beam 12 is connected to the curved section 2121, a portion of the bottom reinforcing plate 3 is located at the bottom of the curved section 2121, and the rear end of the front longitudinal beam reinforcing beam 24 is located at and connected to the curved section 2121. In other words, the front bulkhead reinforcing beam 12, the bottom reinforcing plate 3, and the front longitudinal beam reinforcing beam 24 together provide local reinforcement to the curved section 2121 of the front longitudinal beam 212, preventing bending and collapse of the front longitudinal beam 212 at the curved section 2121, thereby improving the strength of the force transmission path.

[0077] like Figure 20 and Figure 26 As shown, according to some embodiments of the present invention, the front longitudinal beam reinforcing beam 24 is provided with a first weakening groove 241, which is located on the upper and / or lower side of the front longitudinal beam reinforcing beam 24. That is, by providing the first weakening groove 241, the strength of the front longitudinal beam reinforcing beam 24 at the rear end of the suspension 23 is reduced, so that the rear end of the suspension 23 can smoothly generate the bending in the predetermined strategy, thereby giving full play to the collapsing energy absorption effect of the front section 211 of the front longitudinal beam.

[0078] like Figure 20 and Figure 26As shown, according to some embodiments of this utility model, the front section 211 of the front longitudinal beam is welded to the front section 212 of the front longitudinal beam. The front longitudinal beam reinforcing beam 24 is provided with a welding clearance notch 242, which is used to avoid the welding connection position between the front section 211 and the front section 212 of the front longitudinal beam. In other words, the welding clearance notch 242 ensures that the front longitudinal beam reinforcing beam 24 is not affected by welding heat during the welding process, maintaining its performance stability. It also avoids stress concentration at the welding connection position, further improving the durability of the structure.

[0079] like Figure 23 and Figure 27 As shown, according to some embodiments of the present invention, the front structure 100 of the vehicle body further includes a suspension mounting bracket 2112. At least one front longitudinal beam has a suspension mounting bracket 2112 at its opening 2111, and the suspension 23 is connected to the suspension mounting bracket 2112. In other words, the suspension mounting bracket 2112 increases the structural strength at the opening 2111. Furthermore, the suspension mounting bracket 2112 facilitates the stable installation of the suspension 23.

[0080] like Figure 1 , Figure 2 and Figure 3 As shown, according to some embodiments of this utility model, the front structure 100 of the vehicle body includes a front floor 41, a front bulkhead 11 connected to the front end of the front floor 41, and a central channel 42 protruding upwards is formed on the front floor 41. The central channel 42 is located in the middle of the front floor 41 in the left-right direction. A central channel reinforcing longitudinal beam 43 is provided on the upper side of the central channel 42 and extends in the front-rear direction. The front end of the central channel 42 and the front end of the central channel reinforcing longitudinal beam 43 are both connected to the front bulkhead 11. That is to say, during a collision, the central channel reinforcing longitudinal beam 43 can further guide the collision load of the front longitudinal beam 21 dispersed by the front bulkhead reinforcing crossbeam 12 to the central channel 42 structure, and then disperse it to the front floor 41 through the central channel 42, thereby forming a complete collision load transfer path, reducing the deformation of the front bulkhead reinforcing crossbeam 12 during the collision, and thus further reducing the risk of the front longitudinal beam 21 being squeezed and extensively intruding into the passenger compartment during the collision.

[0081] like Figure 28 and Figure 29As shown, according to some embodiments of this utility model, there are two central channel reinforcing longitudinal beams 43 arranged in the left-right direction; the cross-section of the central channel reinforcing longitudinal beams 43 is "U"-shaped, and the open side of the central channel reinforcing longitudinal beams 43 faces the central channel 42. That is to say, through the structure of two central channel reinforcing longitudinal beams 43 with "U"-shaped cross-sections, the contact area between the central channel reinforcing longitudinal beams 43 and the front bulkhead reinforcing crossbeam 12 is increased, and the "U"-shaped cross-section is more stable, thereby forming a more effective support for the front bulkhead reinforcing crossbeam 12, effectively reducing the risk of non-deformable parts such as engines intruding into the passenger compartment in large quantities during a collision due to compression of the front bulkhead crossbeam.

[0082] The vehicle according to a second aspect embodiment of the present invention is described below with reference to the accompanying drawings.

[0083] A vehicle according to a second aspect of the present invention includes: a front body structure 100.

[0084] According to the second aspect of the present invention, the vehicle has a bottom reinforcing plate 3 at the connection between the front longitudinal beam 21 and the front bulkhead 11, which can effectively improve the overall rigidity of the connection between the front longitudinal beam 21 and the front bulkhead 11, effectively reduce the intrusion of the passenger compartment during a collision, and since the bottom reinforcing plate 3 is connected to the front longitudinal beam 21, the front bulkhead reinforcing crossbeam 12 and the front bulkhead 11, it can effectively disperse and transmit the impact force during a collision, thereby improving the safety of the vehicle during a collision.

[0085] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0086] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0087] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A front structure for a vehicle body, characterized in that, include: A front bulkhead and a front bulkhead reinforcing beam, wherein the front bulkhead reinforcing beam is located at the lower part of the front bulkhead and is arranged in the left-right direction; The front longitudinal beam consists of two beams arranged in the left-right direction, and the two front longitudinal beams are respectively connected to the left and right ends of the front bulkhead reinforcing beam. A bottom reinforcing plate is provided at the bottom of the front longitudinal beam and the front bulkhead, and the bottom reinforcing plate is connected to the front longitudinal beam, the front bulkhead reinforcing beam and the front bulkhead.

2. The front structure of the vehicle body according to claim 1, characterized in that, The bottom reinforcing plate has a first connecting flange, a second connecting flange, and a third connecting flange along its edge. The first connecting flange is connected to the front longitudinal beam, the second connecting flange is connected to the front bulkhead reinforcing beam, and the third connecting flange is connected to the front bulkhead.

3. The front structure of the vehicle body according to claim 1, characterized in that, The front longitudinal beam includes a front section and a rear section, the rear section of which has a curved section, and the front bulkhead crossbeam is connected to the curved section. Wherein, part of the bottom reinforcing plate is located on the bottom surface of the curved section, and / or, the front longitudinal beam includes a front longitudinal beam outer plate and a front longitudinal beam inner plate connected in the left-right direction, and the front longitudinal beam inner plate is provided with a front longitudinal beam inner plate reinforcing bracket at the location of the curved section.

4. The front structure of the vehicle body according to claim 1, characterized in that, The front bulkhead reinforcing beam includes a first reinforcing section and two second reinforcing sections. The first reinforcing section extends in the left-right direction, and the two second reinforcing sections are respectively connected to the left and right sides of the first reinforcing section. The second reinforcing section connected to the left side extends forward at an angle from right to left, and the second reinforcing section connected to the right side extends forward at an angle from left to right. The front structure of the vehicle body includes a torque box, which is located at the left and right ends of the front bulkhead. The edge of the second reinforcing section forms a fourth connecting flange, a fifth connecting flange, and a sixth connecting flange. The fourth connecting flange is connected to the bottom reinforcing plate, the fifth connecting flange is connected to the front longitudinal beam, and the sixth connecting flange is connected to the torque box.

5. The front structure of the vehicle body according to claim 1, characterized in that, The front longitudinal beam includes a front section and a rear section. The front section is connected to the front side of the rear section, and the rear section is connected to the front bulkhead reinforcing beam. The front section of the front longitudinal beam is made of a first material, and the rear section of the front longitudinal beam is made of a second material, wherein the strength of the second material is greater than that of the first material.

6. The front structure of the vehicle body according to claim 5, characterized in that, The wall thickness of the front section of the front longitudinal beam is the same as the wall thickness of the rear section of the front longitudinal beam.

7. The front structure of the vehicle body according to claim 5, characterized in that, The front structure of the vehicle body includes a mount, the front section of the front longitudinal beam has an opening, and the mount is fixed to the front section of the front longitudinal beam and located at the opening.

8. The front structure of the vehicle body according to claim 7, characterized in that, The front longitudinal beam includes an outer plate and an inner plate connected in the left-right direction. A front longitudinal beam reinforcing beam is provided between the outer plate and the inner plate. The front end of the reinforcing beam extends forward beyond the suspension, and the rear end extends backward beyond the connection position between the front and rear sections of the front longitudinal beam. A first weakening groove is provided on the reinforcing beam, which is located on the upper and / or lower side of the reinforcing beam.

9. The vehicle front structure according to any one of claims 1-8, characterized in that, Includes a front floor, the front bulkhead is connected to the front end of the front floor, the front floor has an upwardly protruding central channel, the central channel is located in the middle of the front floor in the left-right direction, the front floor is provided with a central channel reinforcing longitudinal beam, the central channel reinforcing longitudinal beam is located on the upper side of the central channel and extends in the front-rear direction, the front end of the central channel and the front end of the central channel reinforcing longitudinal beam are both connected to the front bulkhead; The central channel reinforcing longitudinal beam consists of two beams arranged in the left-right direction, and / or the cross-section of the central channel reinforcing longitudinal beam is "U" shaped.

10. A vehicle, characterized in that, include: The vehicle front structure according to any one of claims 1-9.

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