Vehicle body structure and vehicle

Abstract

The utility model provides a vehicle body structure and a vehicle. The vehicle body structure comprises an integrally-formed front wall lower portion located below a front wall plate and a doorsill beam with the front end located on one side of the front wall lower portion. Wherein a connecting groove is formed in the side portion of the front wall lower portion, at least part of the front end of the doorsill beam is located in the connecting groove and fixedly connected with the front wall lower portion, and part of the end face of the front end of the doorsill beam is wrapped by the front wall lower portion. According to the vehicle body structure, the front wall lower portion is integrally formed, the connecting groove is formed, the front wall lower portion is used for wrapping the front end of the doorsill beam, integral forming of the front wall lower portion can be utilized, the number of parts is reduced, manufacturing is convenient, and the manufacturing cost is reduced; the bearing capacity of the front wall position and the doorsill beam position under small overlapping collision and the collision force transmission effect between the front wall position and the doorsill beam position can be improved, and the collision safety of the whole vehicle can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a vehicle body structure. Meanwhile, the utility model also relates to a vehicle provided with the vehicle body structure. Background Art

[0002] As an important part of the vehicle body, the front panel of the vehicle body is a key component that separates the engine compartment and the passenger compartment, and can effectively prevent the components in the engine compartment from directly rushing into the passenger compartment due to a collision, thereby protecting the safety of the passengers in the vehicle. Moreover, when a vehicle is involved in a head-on collision, the front panel and the components connected to it will participate in the absorption and dispersion of the collision energy to reduce the impact on the passenger compartment. However, the existing front panel of the vehicle body adopts a sheet metal welding structure, which has many parts and is not easy to prepare, and is likely to increase the manufacturing cost of the vehicle. At the same time, the front panel is laterally connected to the sill beam. When the vehicle collides, especially in a small overlap collision condition, the connection between the front panel and the sill beam is prone to cracking, which will affect the load-bearing capacity of the front panel and the sill beam, and will also affect the collision force transmission effect between the front panel of the vehicle body and the sill beam, which is not conducive to improving the collision safety of the vehicle. Utility Model Content

[0003] In view of this, the utility model aims to propose a vehicle body structure to help reduce the manufacturing cost of the whole vehicle and to help improve the collision safety of the whole vehicle.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] A vehicle body structure includes an integrally formed lower dash portion located below a dash panel, and a sill beam having a front end located on one side of the lower dash portion;

[0006] A connecting groove is formed on the side of the lower part of the front enclosure, the front end of the sill beam is at least partially located in the connecting groove and is fixedly connected to the lower part of the front enclosure, and part of the end surface of the front end of the sill beam is wrapped by the lower part of the front enclosure.

[0007] Further, the connecting groove has a side wall facing the side end surface of the sill beam, a front wall facing the end end surface of the sill beam, and a bottom wall facing the bottom end surface of the sill beam;

[0008] The side wall, the front wall and the bottom wall respectively wrap the corresponding end surfaces on the door sill beam, and at least one of the side wall, the front wall and the bottom wall is connected to the door sill beam through a connecting piece.

[0009] Furthermore, a boss is formed on at least one of the side wall, the front wall and the bottom wall, and the connecting member is located on the boss.

[0010] Further, a lower front panel is formed at the lower part of the front enclosure, and a lower front panel plate located below the lower cross beam of the front enclosure;

[0011] The lower front panel plate includes a middle channel connecting plate in the middle, and lower front panel plates respectively arranged on the left and right sides of the middle channel connecting plate. The connecting groove is located at the side part of the lower front panel plate.

[0012] Further, a rear section of the front engine compartment longitudinal beam and a torque box are formed at the bottom of the lower front panel at the lower part of the front enclosure;

[0013] One side of the torque box is connected to the rear section of the front engine compartment longitudinal beam, and the other side of the torque box is connected to the bottom wall.

[0014] Further, a connecting beam is formed at the bottom of the lower front panel at the lower part of the front enclosure. One end of the connecting beam is connected to the rear section of the front engine compartment longitudinal beam, and the other end of the connecting beam is connected to a connecting cross beam formed at the bottom of the middle channel connecting plate.

[0015] Further, an inclined support beam is formed at the bottom of the lower front panel at the lower part of the front enclosure. The inclined support beam is connected between the rear section of the front engine compartment longitudinal beam and the connecting beam, and the rear section of the front engine compartment longitudinal beam, the connecting beam and the inclined support beam are connected to form a triangular structure.

[0016] Further, at the end where the connecting beam is connected to the rear section of the front engine compartment longitudinal beam, it is arranged in a butt joint manner with the torque box in the left-right direction of the whole vehicle; and / or,

[0017] At the end where the inclined support beam is connected to the rear section of the front engine compartment longitudinal beam, it is arranged in a butt joint manner with the torque box in the left-right direction of the whole vehicle.

[0018] Further, the sill beam includes an inner beam body and an outer beam body connected together;

[0019] The inner beam body is made of steel sheet metal, the outer beam body is made of extruded profile, and a sill beam cavity is formed between the inner beam body and the outer beam body. The lower part of the front enclosure forms a wrapping of the inner beam body.

[0020] Compared with the prior art, the present utility model has the following advantages:

[0021] For the body structure of the present utility model, by integrally forming the lower part of the front enclosure, forming a connecting groove, and using the lower part of the front enclosure to form a wrapping of the front end of the sill beam, not only can the integral forming of the lower part of the front enclosure be utilized to reduce the number of parts, facilitate preparation, and reduce the manufacturing cost. At the same time, it can also improve the bearing capacity at the front enclosure position and the sill beam position under a small overlap collision, as well as the collision force transmission effect between the two, which is beneficial to improving the collision safety of the whole vehicle.

[0022] In addition, by providing the connection groove with side walls, a front wall and a bottom wall, it is helpful to increase the degree of wrapping of the lower part of the front wall on the threshold beam, and to increase the connection strength between the lower part of the front wall and the threshold beam. By providing a boss and locating the connection member on the boss, the local thickening of the boss can be utilized to increase the structural strength of the location of the connection member, which helps to ensure the connection reliability between the lower part of the front wall and the threshold beam.

[0023] Secondly, by forming the lower cross beam and the lower plate of the dash at the lower part of the dash, the number of parts in the lower part of the dash can be reduced, which is convenient for the preparation of the lower structure of the dash, and helps to reduce the manufacturing cost of the vehicle body. At the same time, it also helps to improve the overall structural strength of the lower part of the dash, and helps to improve the safety of the whole vehicle during a collision. By forming the rear section of the front cabin longitudinal beam and the torsion box, the number of parts in the lower part of the dash can be further reduced, which helps to reduce the manufacturing cost of the whole vehicle. In addition, by connecting the torsion box, a force transmission channel can be formed between the rear section of the longitudinal beam and the threshold beam, which helps to reliably transmit the collision force of the front cabin longitudinal beam to the threshold beam.

[0024] Secondly, by setting a connecting beam connected to the rear section of the front cabin longitudinal beam and connecting the connecting beams on both sides through the connecting crossbeam at the bottom of the middle channel connecting plate, not only can the lateral stiffness of the bottom of the front enclosure be increased, which helps to improve the torsional stiffness of the vehicle, but also can increase the lateral force transmission channel, which is conducive to the transmission and dispersion of collision force. The setting of the oblique support beam can further increase the stiffness of the bottom of the front enclosure, which can better improve the torsional stiffness of the vehicle, and can also further increase the force transmission channel, which is conducive to improving the transmission capacity of collision force.

[0025] In addition, the end of the connecting beam connected to the rear section of the front cabin longitudinal beam, and the end of the diagonal support beam connected to the rear section of the front cabin longitudinal beam and the torsion box are connected to each other, which can better increase the lateral stiffness of the bottom of the lower part of the front enclosure and also help disperse the collision force between them. By making the door sill beam include an inner beam body and an outer beam body, and the inner beam body is made of steel sheet metal and the outer beam body is made of extruded profiles, the high structural strength of the extruded profile can be used to increase the strength of the door sill beam itself, and the extruded profile can also be used to easily collapse and absorb energy, thereby improving the energy absorption effect during a side collision of the vehicle body.

[0026] Another object of the present invention is to provide a vehicle having the vehicle body structure as described above.

[0027] The vehicle described in the utility model can reduce the number of parts and components by providing the vehicle body structure as described above, which is convenient for preparation and also helps to improve the safety of the entire vehicle in collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings, which form a part of the present utility model, are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0029] Figure 1 It is a schematic structural diagram of the vehicle body structure described in the embodiment of the present utility model;

[0030] Figure 2 It is a schematic structural diagram of the vehicle body structure described in the embodiment of the present utility model from another perspective;

[0031] Figure 3 It is a schematic structural diagram of the vehicle body structure described in the embodiment of the present utility model from yet another perspective;

[0032] Figure 4 It is a schematic structural diagram of the lower part of the front wall described in the embodiment of the present utility model;

[0033] Figure 5 It is a schematic structural diagram of the lower part of the front wall described in the embodiment of the present utility model from another perspective;

[0034] Figure 6 It is a schematic structural diagram of the lower part of the front wall described in the embodiment of the present utility model from yet another perspective;

[0035] Figure 7 It is Figure 6 an enlarged view of part A in

[0036] Figure 8 It is a schematic structural diagram of the lower part of the front wall described in the embodiment of the present utility model from yet another perspective;

[0037] Figure 9 It is a schematic structural diagram of the sill beam described in the embodiment of the present utility model;

[0038] Figure 10 It is a schematic structural diagram of the sill beam described in the embodiment of the present utility model from another perspective;

[0039] Figure 11 It is a schematic structural diagram of the sill beam described in the embodiment of the present utility model from yet another perspective;

[0040] Figure 12 It is a schematic cross-sectional structural diagram of the sill beam described in the embodiment of the present utility model.

[0041] Explanation of reference numerals:

[0042] 1. Lower part of the front wall; 2. Front wall panel; 3. Sill beam; 4. Middle channel; 5. Front floor;

[0043] 101. Connecting groove; 102. Front lower cross beam; 103. Middle channel connecting plate; 104. Lower front panel; 105. Rear section of front engine bay longitudinal beam; 106. Connecting cross beam; 107. Connecting beam; 108. Inclined support beam; 109. Torque box;

[0044] 1011. Side wall; 1012. Front wall; 1013. Bottom wall; 1014. Boss;

[0045] 301. Outer beam body; 302. Inner beam body; 303. Support beam; 304. Connecting plate. Detailed implementation manners

[0046] It should be noted that, without conflict, the embodiments and features in the embodiments of the present utility model may be combined with each other.

[0047] In the description of the present utility model, it should be noted that the orientation terms such as "upper, lower, left, right, front, rear" used in this embodiment are defined based on the up-down direction, left-right direction and front-rear direction of the vehicle. Among them, the up-down direction of the vehicle is also the height direction (Z direction) of the vehicle, the front-rear direction of the vehicle is also the length direction (X direction) of the vehicle, and the left-right direction of the vehicle is also the width direction (Y direction) of the vehicle. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0048] In addition, in the description of the present utility model, unless otherwise clearly defined, the terms "installation", "connection", "connection", "connection member" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood in combination with specific situations.

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

[0050] The existing front body panel position usually adopts a sheet metal welding structure, with many components, which is not convenient for preparation and easily increases the manufacturing cost of the whole vehicle. At the same time, when the vehicle collides, especially in the small overlap collision condition, the connection part between the front body panel position and the sill beam 3 is prone to cracking, which will affect the load-bearing capacity of the front body panel position and the sill beam 3, and also affect the collision force transmission effect between the front body panel position and the sill beam 3 of the vehicle body, and is not conducive to improving the collision safety of the whole vehicle.

[0051] Therefore, this embodiment particularly provides a novel body structure, including an integrally formed lower front panel 1 located below the front bulkhead 2, and a sill beam 3 with its front end located on one side of the lower front panel 1. Wherein, a connecting groove 101 is formed on the side of the lower front panel 1, at least a part of the front end of the sill beam 3 is located in the connecting groove 101 and is fixedly connected to the lower front panel 1, and a part of the end face of the front end of the sill beam 3 is wrapped by the lower front panel 1.

[0052] For the body structure of this embodiment, by integrally forming the lower front panel 1 with a connecting groove 101 formed thereon, and using the lower front panel 1 to wrap the front end of the sill beam 3, not only can the integrally formed lower front panel 1 be utilized to reduce the number of components, facilitate preparation, and reduce manufacturing costs. At the same time, it can also improve the load-bearing capacity at the position of the front bulkhead and the sill beam 3 under small overlap collisions, as well as the collision force transmission effect between the two, which is beneficial to improving the safety of the vehicle during collisions.

[0053] Based on the above overall introduction, an exemplary structure of the body structure of this embodiment is referred to Figures 1 to 3 as shown in. And, in order to clearly show the improvement points of this embodiment, only a part of the body structure is shown in the figure, and other structures can refer to the prior art and will not be elaborated here. The same as the prior art is that the front bulkhead 2 extends in the left-right direction of the vehicle and is connected between the two side A-pillars. Similarly, the lower front panel 1 of this embodiment also extends in the left-right direction of the vehicle, and its upper part is also connected between the two side A-pillars, while the bottom part of the lower front panel 1 is connected to the two side sill beams 3.

[0054] And, as a preferred embodiment, the structure of the lower front panel 1 of this embodiment is referred to Figures 4 to 8 as shown in. It is integrally curved. Additionally, as a preferred embodiment, the connecting groove 101 of this embodiment has a side wall 1011 facing the side end face of the sill beam 3, a front wall 1012 facing the end face of the front end of the sill beam 3, and a bottom wall 1013 facing the bottom end face of the sill beam 3. And the side wall 1011, the front wall 1012, and the bottom wall 1013 respectively form a wrap around the corresponding end faces on the sill beam 3, and at least one of the side wall 1011, the front wall 1012, and the bottom wall 1013 is connected to the sill beam 3 through a connecting member.

[0055] In this embodiment, by making the connecting groove 101 have a side wall 1011, a front wall 1012 and a bottom wall 1013, it helps to increase the degree of wrapping of the lower part 1 of the front panel around the sill beam 3 and the connection strength between the lower part 1 of the front panel and the sill beam 3. Moreover, as a preferred embodiment, the side wall 1011, the front wall 1012 and the bottom wall 1013 of the connecting groove 101 are all connected to the sill beam 3 through connecting members. With this design, the sill beam 3 can be connected to the lower part 1 of the front panel in the up-down, left-right and front-back directions of the whole vehicle, which can fully increase the connection strength between the lower part 1 of the front panel and the sill beam 3. Among them, the connecting member generally can adopt a bolt structure.

[0056] Specifically, as shown in Figure 4 and Figure 5 , the side wall 1011, the front wall 1012 and the bottom wall 1013 of the connecting groove 101 are generally perpendicular to each other in pairs, so as to better fit the sill beam 3 and improve the wrapping effect on the sill beam 3. In addition, connecting holes for bolts to pass through are provided on the side wall 1011, the front wall 1012 and the bottom wall 1013 of the connecting groove 101, and the connecting holes on each wall are multiple and arranged at intervals to further increase the connection strength between the lower part 1 of the front panel and the sill beam 3.

[0057] At this time, as a further embodiment, a boss 1014 is formed on at least one of the side wall 1011, the front wall 1012 and the bottom wall 1013, and the connecting member is located on the boss 1014. In this embodiment, by providing the boss 1014 and making the connecting member located on the boss 1014, the local thickening of the boss 1014 can be utilized to increase the structural strength of the position where the connecting member is located, which helps to ensure the connection reliability between the lower part 1 of the front panel and the sill beam 3. Among them, referring to Figure 4 and Figure 7 , in this embodiment, as a preferred embodiment, bosses 1014 are formed on the side wall 1011, the front wall 1012 and the bottom wall 1013 of the connecting groove 101. In addition, in addition to being arranged at intervals as shown in Figure 7 , the multiple bosses 1014 can also be continuously arranged together.

[0058] Here, it should be noted that in addition to making the side wall 1011, the front wall 1012 and the bottom wall 1013 of the connecting groove 101 all connected to the sill beam 3 through connecting members, it is also possible to only make any one or two of the side wall 1011, the front wall 1012 and the bottom wall 1013 connected to the sill beam 3 through connecting members. In addition, in addition to providing bosses 1014 on the side wall 1011, the front wall 1012 and the bottom wall 1013 of the connecting groove 101, it is also possible to only provide bosses 1014 on any one or two of the side wall 1011, the front wall 1012 and the bottom wall 1013.

[0059] In addition, in combination with Figure 4 and Figure 5 as shown, a lower front bulkhead 102 is formed on the lower part of the front bulkhead in this embodiment, and a lower front bulkhead panel is located below the lower front bulkhead 102. Moreover, the lower front bulkhead panel includes a middle channel connecting plate 103 located in the middle, and lower front bulkhead panels 104 respectively arranged on the left and right sides of the middle channel connecting plate 103. The above-mentioned connecting groove 101 is specifically located at the side of the lower front bulkhead panel 104. In this embodiment, by forming the lower front bulkhead 102 and the lower front bulkhead panel on the lower part of the front bulkhead, it is beneficial to reduce the number of components of the lower part of the front bulkhead 1, facilitate the preparation of the structure of the lower part of the front bulkhead 1, and contribute to reducing the body manufacturing cost. At the same time, it also helps to improve the overall structural strength of the position of the lower part of the front bulkhead 1 and helps to improve the safety during the vehicle collision.

[0060] Moreover, as a preferred embodiment, the lower part of the front bulkhead 1 in this embodiment is preferably formed by die-casting of aluminum alloy or magnesium alloy, which is beneficial to forming, has a good weight reduction effect, and is conducive to lightweight design. In addition, the lower front bulkhead 102 extends along the left-right direction of the vehicle, and a flanging extending upward is formed at its top. The lower part of the front bulkhead 1 is specifically connected to the front bulkhead panel 2 through this flanging. And, to further improve the structural strength of the lower edge of the front bulkhead, as Figure 4 and Figure 5 shown, a plurality of reinforcing ribs are provided between the lower front bulkhead 102 and the lower front bulkhead panel.

[0061] Furthermore, in combination with Figures 1 to 3 shown, the middle channel connecting plate 103 in this embodiment is arranged corresponding to the vehicle body middle channel 4 and is connected to the middle channel 4, while the lower front bulkhead panels 104 on both sides are arranged corresponding to the front floor 5 on both sides of the middle channel 4 and are connected to the front floor 5. In addition, in combination with Figure 7 and Figure 8 shown, the left and right ends of the lower front bulkhead panel 104 are respectively formed with recessed portions recessed backward, and a plurality of reinforcing ribs are provided in the recessed portions. The setting of the recessed portions can not only improve the overall structural strength of the lower part of the front bulkhead 1, but also facilitate the avoidance of other components.

[0062] Secondly, in combination with Figures 6 to 8 shown, as a further implementation manner, a rear section 105 of the front engine compartment longitudinal beam and a torque box 109 are formed on the lower part of the front bulkhead 1 at the bottom of the lower front bulkhead panel 104. And one side of the torque box 109 is connected to the rear section 105 of the front engine compartment longitudinal beam, and the other side of the torque box 109 is connected to the bottom wall 1013. In this embodiment, by forming the rear section 105 of the front engine compartment longitudinal beam and the torque box 109 on the lower part of the front bulkhead 1, it is further beneficial to reduce the number of components of the lower part of the front bulkhead 1 and contribute to reducing the vehicle manufacturing cost. And, by using the connection of the torque box 109, a force transmission channel can also be formed between the rear section 105 of the front engine compartment longitudinal beam and the sill beam 3, which helps to reliably transmit the collision force of the front engine compartment longitudinal beam to the sill beam 3.

[0063] Among them, as a preferred embodiment, as shown in Figure 7 , the torsion box 109 of this embodiment is composed of two beam bodies arranged at intervals in the front-rear direction of the whole vehicle, and both ends of each beam body are respectively connected to the rear section 105 of the front engine compartment longitudinal beam and the bottom wall 1013 of the connection groove 101. And, as a preferred embodiment, still referring to Figure 7 , the rear section 105 of the front engine compartment longitudinal beam and each beam body constituting the torsion box 109 are each composed of oppositely arranged side plates and rib bodies connected between the two side plates. With such a setting, the rear section 105 of the front engine compartment longitudinal beam and the torsion box 109 can have greater structural strength, which is beneficial to improving the overall strength and collision safety of the vehicle body, and is also beneficial to the overall lightweight design.

[0064] In addition, as shown in Figure 7 , to further improve the use effect, the two beam bodies of the torsion box 109 are respectively arranged corresponding to two connectors on the bottom wall 1013, whereby the connection strength of the connectors can be improved. It can be understood that the torsion box 109 can be composed of not only two beam bodies arranged side by side, but also one or multiple beam bodies arranged side by side. Continuing to refer to Figures 6 to 8 , as a further implementation manner, a connection beam 107 is formed on the lower part 1 of the front panel at the bottom of the front panel lower plate 104. Moreover, one end of the connection beam 107 is connected to the rear section 105 of the front engine compartment longitudinal beam, and the other end of the connection beam 107 is connected to a connection cross beam 106 formed at the bottom of the middle channel connection plate 103.

[0065] In this embodiment, by providing the connection beam 107 connected to the rear section 105 of the front engine compartment longitudinal beam and connecting the two side connection beams 107 together through the connection cross beam 106 at the bottom of the middle channel connection plate 103, not only can the lateral stiffness at the bottom of the lower part 1 of the front panel be increased, which helps to improve the torsional stiffness of the whole vehicle, but also a lateral force transmission channel can be increased, which is beneficial to the transmission and dispersion of collision forces.

[0066] And, as a preferred implementation manner, as shown in Figure 6 , the connection cross beam 106 of this embodiment extends along the width direction of the middle channel connection plate 103, that is, along the left-right direction of the whole vehicle. The connection beam 107 extends along an inclined direction arranged at an angle in the left-right direction of the whole vehicle, and the front end of the connection beam 107 is connected to the front part of the rear section 105 of the front engine compartment longitudinal beam. In addition, to improve the overall strength and facilitate the lightweight design, as a preferred embodiment, as shown in Figure 6 and Figure 7 , the connection cross beam 106 and the connection beam 107 of this embodiment are also each composed of oppositely arranged side plates and rib bodies connected between the two side plates.

[0067] Furthermore, as shown inFigure 7 As shown, in this embodiment, the lower part of the front panel 1 is further formed with an inclined support beam 108 located at the bottom of the front panel lower plate 104. Moreover, the inclined support beam 108 is connected between the rear section 105 of the front engine compartment longitudinal beam and the connecting beam 107, and the rear section 105 of the front engine compartment longitudinal beam, the connecting beam 107 and the inclined support beam 108 are connected to form a triangular structure. By providing the inclined support beam 108, the stiffness of the bottom of the lower part of the front panel 1 can be further increased, which can better improve the torsional stiffness of the whole vehicle, and at the same time can further increase the force transmission path, which is beneficial to improving the transmission ability of the collision force.

[0068] Among them, it should be noted that the rear section 105 of the front engine compartment longitudinal beam, the connecting beam 107 and the inclined support beam 108 are all connected to form a triangular structure. This triangular structure can be a standard triangle, or a similar triangular structure in which the three beam bodies intersect pairwise as Figure 7 shown. As a preferred embodiment, the inclined support beam 108 of this embodiment is also composed of side plates arranged oppositely and ribs connected between the two side plates.

[0069] Continue to refer to Figure 7 As shown, as a further implementation manner, in this embodiment, one end of the connecting beam 107 connected to the rear section 105 of the front engine compartment longitudinal beam is arranged to be connected to the torsion box 109 in the left-right direction of the whole vehicle. At the same time, one end of the inclined support beam 108 connected to the rear section 105 of the front engine compartment longitudinal beam is arranged to be connected to the torsion box 109 in the left-right direction of the whole vehicle. By arranging the connection between one end of the connecting beam 107 connected to the rear section 105 of the front engine compartment longitudinal beam, and one end of the inclined support beam 108 connected to the rear section 105 of the front engine compartment longitudinal beam and the torsion box 109, the lateral stiffness of the bottom of the lower part of the front panel 1 can be better increased, and it is also helpful for the collision force to be dispersed and transmitted among them.

[0070] Here, it should be noted that the so-called connection arrangement means that at least part of the projection of the end of the connecting beam 107 connected to the rear section 105 of the front engine compartment longitudinal beam and the torsion box 109 overlaps in the left-right direction of the whole vehicle. In addition, it should also be noted that in addition to arranging the connection between one end of the connecting beam 107 connected to the rear section 105 of the front engine compartment longitudinal beam, and one end of the inclined support beam 108 connected to the rear section 105 of the front engine compartment longitudinal beam and the torsion box 109. It is also possible to arrange the connection only between one end of the connecting beam 107 connected to the rear section 105 of the front engine compartment longitudinal beam, or only between one end of the inclined support beam 108 connected to the rear section 105 of the front engine compartment longitudinal beam and the torsion box 109.

[0071] In addition, referring to Figures 9 to 12As shown, as a preferred embodiment, the sill beam 3 of this embodiment includes an inner beam body 302 and an outer beam body 301 connected together. Among them, the inner beam body 302 is made of steel sheet metal, the outer beam body 301 is made of an extruded profile, and a sill beam 3 cavity is formed between the inner beam body 302 and the outer beam body 301. The lower part of the front enclosure 1 forms a wrap for the inner beam body 302. Here, by making the sill beam 3 include the inner beam body 302 and the outer beam body 301, and the inner beam body 302 is made of steel sheet metal and the outer beam body 301 is made of an extruded profile, the high structural strength of the extruded profile can be utilized to increase the strength of the sill beam 3 itself. At the same time, the characteristics of the extruded profile being easy to crush and absorb energy can also be utilized to improve the energy absorption effect during a side collision of the vehicle body.

[0072] Specifically, the cross-section of the inner beam body 302 of this embodiment is a "U" - shaped structure with the opening facing the outer beam body 301. The outer beam body 301 is snap - connected to the opening of the cross - section of the inner beam body 302, and a sill beam cavity is defined inside the inner beam body 302. This structure can increase the structural strength of the inner beam body 302 and is also conducive to forming the sill beam cavity. Furthermore, the overall strength and force - transmission effect of the sill beam 3 can be improved by utilizing the characteristics of this cavity.

[0073] At this time, to facilitate the connection between the inner beam body 302 and the connection groove 101, as Figure 11 shown, a plug plate is provided at the front end of the inner beam body 302, and the inner beam body 302 is connected to the front wall 1012 of the connection groove 101 through this plug plate. In addition, to facilitate the connection between the inner beam body 302 and the outer beam body 301, a connecting plate 304 is connected to the outside of the inner beam body 302, and the inner beam body 302 is connected to the outer beam body 301 through the connecting plate 304. Among them, the connecting plate 304 is in a rectangular ring - shaped structure and extends along the length direction of the inner beam body 302. In addition, combining Figure 10 and Figure 12 shown, the cross - section of the outer beam body 301 is set as a multi - cavity energy - absorbing structure. Not only can the advantages of the high structural strength of the multi - cavity structure be utilized to increase the structural strength of the sill beam 3, but also the characteristics that the multi - cavity energy - absorbing structure can fully collapse and absorb energy during a vehicle side collision can be utilized to improve the energy absorption effect during a side collision of the vehicle body, thereby improving the safety of the vehicle during a side collision.

[0074] As a further embodiment, a support beam 303 is provided on the outer beam body 301 and located within the sill beam cavity. Moreover, in the vehicle's left-right direction, one side of the support beam 303 is connected to the outer beam body 301, and the other side of the support beam 303 extends towards the inner beam body 302, leaving a gap between it and the inner beam body 302. In this embodiment, by providing the support beam 303 on the outer beam body 301 and located within the sill beam 3 cavity, the structural strength of the sill beam 3 can be increased, and the lateral support capacity at the position of the sill beam 3 during a vehicle side impact can be enhanced. At the same time, by leaving a gap between the support beam 303 and the inner beam body 302, the problem of abnormal noise due to too close a distance after assembly can be avoided.

[0075] In addition, as a further embodiment, the support beam 303 is integrally formed on the outer beam body 301, and a cavity arranged in the vehicle's front-rear direction is formed inside the support beam 303. By integrally forming the support beam 303 on the outer beam body 301, it is beneficial for the preparation of the support beam 303 and helps to ensure the structural strength of the support beam 303. Furthermore, the lateral support force of the structure of the sill beam 3 can be enhanced, and the side impact safety of the vehicle can be improved.

[0076] In addition, during specific implementation, the extruded profile used for the outer beam body 301 preferably adopts extruded aluminum to facilitate lightweighting. Of course, in addition to using extruded profiles for the outer beam body 301, the sill beam 3 can also adopt a beam body structure entirely formed by welding steel sheet metal. Additionally, it should be noted that in addition to making the lower part of the front panel 1 wrap around the inner beam body 302, the lower part of the front panel 1 can also wrap around the front end of the overall structure of the sill beam 3.

[0077] Based on the above overall description, the body structure of this embodiment can increase the connection strength between the front panel position and the sill beam 3, improve the load-bearing capacity at the front panel position and the sill beam 3 position under a small overlap collision, as well as the collision force transmission effect between the two, thereby facilitating the improvement of the vehicle collision safety.

[0078] In addition, this embodiment also proposes a vehicle having the above body structure.

[0079] The vehicle of this embodiment, by setting the above body structure, can reduce the number of components, facilitate preparation, and at the same time is also beneficial for improving the vehicle collision safety.

[0080] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A vehicle body structure, characterized in that: It comprises an integrally formed front wall lower part (1) located below a front wall plate (2), and a threshold beam (3) with a front end located on one side of the front wall lower part (1); A connecting groove (101) is formed on the side of the front enclosure lower part (1), the front end of the door sill beam (3) is at least partially located in the connecting groove (101) and is fixedly connected to the front enclosure lower part (1), and a part of the end surface of the front end of the door sill beam (3) is wrapped by the front enclosure lower part (1).

2. The vehicle body structure according to claim 1, characterized in that: The connecting groove (101) has a side wall (1011) facing the side end surface of the threshold beam (3), a front wall (1012) facing the end end surface of the threshold beam (3), and a bottom wall (1013) facing the bottom end surface of the threshold beam (3); The side wall (1011), the front wall (1012) and the bottom wall (1013) respectively wrap around corresponding end surfaces on the door sill beam (3), and at least one of the side wall (1011), the front wall (1012) and the bottom wall (1013) is connected to the door sill beam (3) via a connecting piece.

3. The vehicle body structure according to claim 2, characterized in that: A boss (1014) is formed on at least one of the side wall (1011), the front wall (1012) and the bottom wall (1013), and the connecting member is located on the boss (1014).

4. The vehicle body structure according to claim 2, characterized in that: The lower part of the front wall (1) is formed with a lower front wall cross beam (102) and a lower front wall panel located below the lower front wall cross beam (102); The front wall lower plate comprises a middle channel connecting plate (103) located in the middle, and front wall lower plates (104) arranged on the left and right sides of the middle channel connecting plate (103), and the connecting groove (101) is located on the side of the front wall lower plate (104).

5. The vehicle body structure according to claim 4, characterized in that: The lower part of the front enclosure (1) is formed with a rear section of a front cabin longitudinal beam (105) and a torque box (109) located at the bottom of the lower plate of the front enclosure (104); One side of the torsion box (109) is connected to the rear section (105) of the front cabin longitudinal beam, and the other side of the torsion box (109) is connected to the bottom wall (1013).

6. The vehicle body structure according to claim 5, characterized in that: The lower part of the front enclosure (1) is formed with a connecting beam (107) located at the bottom of the lower plate (104) of the front enclosure, one end of the connecting beam (107) is connected to the rear section (105) of the front cabin longitudinal beam, and the other end of the connecting beam (107) is connected to a connecting cross beam (106) formed at the bottom of the middle channel connecting plate (103).

7. The vehicle body structure according to claim 6, characterized in that: The lower part of the front enclosure (1) is formed with an oblique support beam (108) located at the bottom of the lower plate (104) of the front enclosure, and the oblique support beam (108) is connected between the rear section of the front cabin longitudinal beam (105) and the connecting beam (107), and the rear section of the front cabin longitudinal beam (105), the connecting beam (107) and the oblique support beam (108) are connected to form a triangular structure.

8. The vehicle body structure according to claim 7, characterized in that: One end of the connecting beam (107) connected to the rear section (105) of the front cabin longitudinal beam is connected to the torsion box (109) in the left-right direction of the vehicle; and / or, One end of the oblique support beam (108) connected to the rear section (105) of the front cabin longitudinal beam is connected to the torsion box (109) in the left-right direction of the vehicle.

9. The vehicle body structure according to any one of claims 1 to 8, characterized in that: The threshold beam (3) comprises an inner beam body (302) and an outer beam body (301) connected together; The inner beam body (302) is made of steel sheet metal, the outer beam body (301) is made of extruded profile, and a threshold beam cavity is formed between the inner beam body (302) and the outer beam body (301), and the lower part of the front enclosure (1) wraps the inner beam body (302).

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

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