Vehicle body front wall structure and vehicle

Abstract

The utility model provides a vehicle body front wall structure and a vehicle, and the vehicle body front wall structure comprises a structure body which is arranged along the left-right direction of the whole vehicle; the structure body is integrally formed in a die-casting mode and located below the dash panel, and front cabin longitudinal beam rear sections and torsion boxes are formed on the left side and the right side of the bottom of the structure body. According to the vehicle body front wall structure, the number of parts of the vehicle body front wall can be reduced, preparation of the vehicle body front wall structure is facilitated, the vehicle body manufacturing cost is reduced, meanwhile, the structural strength of the position of the vehicle body front wall, especially the structural strength of the lower portion of the front wall, is improved, and the collision safety of a vehicle is improved. Therefore, the quality and the market competitiveness of the whole vehicle can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle bodies, in particular to a front bulkhead structure of a vehicle body. At the same time, the utility model also relates to a vehicle provided with the front bulkhead structure of the vehicle body. Background Art

[0002] The front bulkhead structure of a vehicle body is an important component structure in a vehicle body. It not only requires good load-bearing performance but also undertakes the function of protecting the safety of the front-row occupants. Specifically, in implementation, it usually adopts a multi-sheet metal welding structure. However, adopting a multi-sheet metal welding structure not only makes the front bulkhead sheet metal parts of the vehicle body numerous and heavy, which is not convenient for preparation and increases the manufacturing cost of the vehicle body, but also is not conducive to improving the structural strength and force transmission performance at the position of the front bulkhead of the vehicle body, affecting the improvement of the vehicle collision safety factor, and thus is not conducive to the upgrade of the overall vehicle quality and the improvement of the overall vehicle market competitiveness. Summary of the Utility Model

[0003] In view of this, the utility model aims to provide a front bulkhead structure of a vehicle body, which can have better collision safety.

[0004] To achieve the above object, the technical solution of the utility model is realized as follows:

[0005] A front bulkhead structure of a vehicle body includes a structural body arranged along the left-right direction of the whole vehicle;

[0006] The structural body is integrally die-cast and is located below the front bulkhead panel, and the rear sections of the front engine bay longitudinal beams and the torque boxes are formed on both the left and right sides of the bottom of the structural body.

[0007] Further, the front sections of the inner sill beams are formed at the edges of both the left and right sides of the bottom of the structural body; one side of each torque box is connected to the rear section of the front engine bay longitudinal beam on the same side, and the other side of each torque box is connected to the front section of the inner sill beam on the same side.

[0008] Further, connecting beams are respectively formed on both the left and right sides of the bottom of the structural body; one end of each connecting beam on each side is connected to the rear section of the front engine bay longitudinal beam on the same side, and the other end of each connecting beam on each side is connected to a connecting cross beam formed at the bottom of the structural body.

[0009] Further, at the end where each connecting beam is connected to the rear section of the front engine bay longitudinal beam, they are arranged in connection with the torque box on the same side in the left-right direction of the whole vehicle.

[0010] Further, diagonal support beams are connected between the rear sections of the front engine bay longitudinal beams and the connecting beams on each side;

[0011] On each side, the inclined support beam is located at the rear side of the connecting beam on the same side, and the rear section of the front engine bay longitudinal beam, the connecting beam, and the inclined support beam on each side are all connected to form a triangular structure.

[0012] Furthermore, each side's torsion box includes a first beam body and a second beam body arranged at intervals in the front-rear direction; the first beam body and the second beam body on each side are both connected between the rear section of the front engine bay longitudinal beam and the front section of the inner panel of the sill beam on the same side, and the first beam body, the second beam body, the rear section of the front engine bay longitudinal beam, and the front section of the inner panel of the sill beam on each side are connected to form an annular structure.

[0013] Furthermore, at one end where the connecting beam and the rear section of the front engine bay longitudinal beam on each side are connected, they are arranged in an abutting manner in the left-right direction of the vehicle body with the first beam body on the same side; and / or, at one end where the inclined support beam and the rear section of the front engine bay longitudinal beam on each side are connected, they are arranged in an abutting manner in the left-right direction of the vehicle body with the second beam body on the same side.

[0014] Furthermore, front subframe mounting points are provided in both of the connecting beams on both sides; there are multiple front subframe mounting points on each side, and at least one of the front subframe mounting points is located at the connection position between the inclined support beam and the connecting beam, and / or, reinforcing rib lines are provided in the connecting beam, and some of the reinforcing rib lines are connected to the front subframe mounting points.

[0015] Furthermore, a front lower cross beam arranged in the left-right direction of the vehicle body is formed at the top of the structural body; the front ends of the rear sections of the front engine bay longitudinal beams on both sides are connected to the front lower cross beam, and the front lower cross beam, the connecting cross beam, and the rear sections of the front engine bay longitudinal beams and the connecting beams on both sides are connected to form an annular structure.

[0016] Compared with the prior art, the present utility model has the following advantages:

[0017] For the front body structure of the present utility model, a structural body formed by integral die-casting is adopted, which can reduce the number of components of the front body, facilitate the preparation of the front body structure, contribute to reducing the manufacturing cost of the vehicle body. At the same time, combined with the structural design form in which the rear section of the front engine bay longitudinal beam and the torsion box are formed at the bottom of the structural body, it is also beneficial to improve the structural strength of the front body position, especially the lower part of the front body, so as to improve the collision safety of the front body position of the vehicle. As a result, the whole vehicle can have better product quality.

[0018] In addition, by forming the front sections of the inner panels of the sill beams on both sides, the component integration degree of the structural body can be further improved, which is beneficial to the preparation of the lower front-end structure and the reduction of the vehicle body manufacturing cost. By forming the connecting beams on both sides, three force transmission paths composed of the rear section of the front engine compartment longitudinal beam, the torque box, and the connecting beam and the connecting cross beam can be formed at the position of the front engine compartment longitudinal beam on each side, which is beneficial to the transmission of the collision force to the sill beam position and the front floor position respectively.

[0019] Moreover, by arranging the inclined support beam, not only can the stiffness of the bottom of the lower front-end be further increased, which can better improve the torsional stiffness of the whole vehicle and enhance the safety of the vehicle during collision, but also, together with the torque box, a three-way support and stable structure can be formed at the rear of the rear section of the front engine compartment longitudinal beam, which helps to avoid the fracture of the rear position of the rear section of the front engine compartment longitudinal beam during vehicle collision. The torque box includes a first beam body and a second beam body, and the beam bodies in the torque box are connected to the rear section of the front engine compartment longitudinal beam and the front section of the inner panel of the sill beam to form an annular structure. The characteristics of the large strength of the annular structure can be utilized to ensure the structural strength of the torque box position.

[0020] Secondly, at the end where the connecting beam is connected to the rear section of the front engine compartment longitudinal beam, and at the end where the inclined support beam is connected to the rear section of the front engine compartment longitudinal beam and between the beam bodies constituting the torque box, a connection is arranged, which can increase the lateral stiffness of the bottom of the lower front-end and help to improve the torsional stiffness of the whole vehicle. By arranging the front subframe mounting points in the connecting beam, it is convenient to connect with the front subframe. And making the front subframe mounting points located at the connection position between the inclined support beam and the connecting beam, and making the reinforcing rib lines in the connecting beam connected to the front subframe mounting points can both increase the structural strength of the front subframe mounting points, ensure the stability of the front subframe installation, and at the same time are also beneficial to the transmission of the force from the front subframe to other positions.

[0021] In addition, by connecting the lower front cross beam, the connecting cross beam, and the rear sections of the front engine compartment longitudinal beams and the connecting beams on both sides to form an annular structure, the characteristics of the large strength of the annular structure can be utilized to better provide the structural strength of the bottom of the vehicle body front-end, which is beneficial to improving the torsional stiffness of the front part of the vehicle body and enhancing the vehicle safety.

[0022] Another object of the present invention is to propose a vehicle, in which the above-mentioned vehicle body front-end structure is provided.

[0023] The vehicle of the present invention is provided with the above-mentioned vehicle body front-end structure, which is beneficial to the preparation of the whole vehicle and the improvement of the safety quality of the whole vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0025] Figure 1 It is a schematic diagram of the overall structure of the front body panel structure described in the embodiment of the present utility model;

[0026] Figure 2 It is a schematic diagram of the structure body described in the embodiment of the present utility model;

[0027] Figure 3 is Figure 2 an enlarged view of part A in

[0028] Figures 4 to 8 It is a schematic diagram of the lower front body panel structure described in the embodiment of the present utility model from other perspectives;

[0029] Figure 9 It is a schematic diagram of the front body panel described in the embodiment of the present utility model

[0030] Explanation of reference numerals:

[0031] 10. Structure body;

[0032] 11. Lower front cross member; 111. First reinforcing rib; 112. Second reinforcing rib; 113. Third reinforcing rib; 114. Flange for connecting the front body panel;

[0033] 12. Lower front body panel; 121. Connecting plate for the middle channel; 1211. Fourth reinforcing rib; 1212. Connecting cross member; 1213. Flange at the rear side of the middle channel; 122. Lower front body panel; 1221. Fifth reinforcing rib; 12211. Annular rib; 12212. Radial rib; 123. Sixth reinforcing rib; 124. Steering gear through hole; 125. Side plate; 126. Seventh reinforcing rib; 127. Eighth reinforcing rib;

[0034] 13. Torque box; 131. First beam body; 132. Second beam body;

[0035] 14. Rear section of the front engine compartment longitudinal beam; 141. Lapping part;

[0036] 15. Front section of the inner panel of the sill beam; 17. Connecting beam; 171. Front subframe mounting point; 172. Reinforcing rib line;

[0037] 18. Diagonal support beam;

[0038] 25. Front body panel; 251. Lower flange. Detailed implementation manners

[0039] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0040] In the following description, specific details such as specific system architectures and technologies are presented for the purpose of illustration rather than limitation, in order to thoroughly understand the embodiments of the present application. However, those skilled in the art should clearly understand that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from interfering with the description of the present application.

[0041] In the description of the present utility model, it should be noted that if terms indicating orientation or positional relationships such as "upper", "lower", "inner", "outer", etc. appear, they are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, if terms such as "first", "second", etc. appear, they are also only for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0042] Taking the vehicle where the body front panel structure described in the present utility model is located as an example, the orientation terms such as "upper, lower, left, right, front, rear" used in the embodiments are defined based on the up-down direction (also known as the height direction, or the vehicle body Z-direction), left-right direction (also known as the width direction, or the vehicle body Y-direction), and front-rear direction (also known as the length direction, or the vehicle body X-direction) of the vehicle. "Inner" and "outer" are defined based on the contour of the corresponding component. For example, "inner" and "outer" defined based on the vehicle contour, with the side closer to the middle of the vehicle contour being "inner", and vice versa being "outer".

[0043] In addition, in the description of the present utility model, unless otherwise clearly defined, the terms "installed", "connected", "connected", and "connecting parts" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. 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.

[0044] The present utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0045] Embodiment 1

[0046] This embodiment relates to a body front panel structure, which can utilize the advantages of die-castings being easy to manufacture, reducing weight and cost, and having high structural strength to solve the problems of traditional body front panel sheet metal parts being numerous, heavy, inconvenient to manufacture, high in manufacturing cost, and unsatisfactory in structural strength.

[0047] In terms of the overall structure, asFigures 1 to 9 As shown, the front body panel structure of this embodiment includes a structure body 10 arranged in the left - right direction of the whole vehicle. Moreover, the structure body 10 is integrally die - cast, located below the front panel 25, and both the left and right sides of the bottom of the structure body 10 are formed with the rear section of the front engine compartment longitudinal beam 14 and the torque box 13.

[0048] At this time, with the above - mentioned settings, the number of components of the front body panel can be reduced by integrally die - casting the structure body 10, which is convenient for the preparation of the front body panel structure, helps to reduce the vehicle body manufacturing cost. At the same time, combined with the structural design form in which the rear section of the front engine compartment longitudinal beam 14 and the torque box 13 are both integrally formed on the structure body 10, it is also beneficial to improve the structural strength of the front body panel position, especially the lower part of the front panel, thereby facilitating the improvement of the vehicle's collision safety.

[0049] Based on the above overall introduction, specifically speaking, in this embodiment, during specific implementation, referring to Figure 1 and Figure 9 As shown, when this embodiment is specifically implemented, the bottom of the front panel 25 is provided with a lower flanging 251, and the top of the structure body 10 is formed with a front panel connection flanging 114 that protrudes upward. The lower flanging 251 is specifically connected to the front panel connection flanging 114 to form the connection between the front panel 25 and the structure body 10.

[0050] In this embodiment, as a preferred implementation form, as shown in Figures 2 to 8 The front section of the inner panel of the sill beam 15 is formed at the edges of the left and right sides of the bottom of the structure body 10. Moreover, one side of each torque box 13 is connected to the rear section of the front engine compartment longitudinal beam 14 on the same side, and the other side of each torque box 13 is connected to the front section of the inner panel of the sill beam 15 on the same side.

[0051] It can be understood that by forming the front sections of the inner panels of the sill beams 15 on both sides, the component integration degree of the structure body 10 can be further improved, which is beneficial to the preparation of the lower part of the front panel structure and the reduction of the vehicle body manufacturing cost.

[0052] During specific implementation, in this embodiment, as a preferred implementation form, connection beams 17 are respectively formed on the left and right sides of the bottom of the structure body 10. One end of each connection beam 17 is connected to the rear section of the front engine compartment longitudinal beam 14 on the same side, and the other end of each connection beam 17 is connected to the connection cross - beam 1212 formed at the bottom of the structure body 10.

[0053] By forming the connection beams 17 on both sides, three force - transmission paths composed of the rear section of the front engine compartment longitudinal beam 14, the torque box 13, the connection beam 17 and the connection cross - beam 1212 can be formed at each side of the front engine compartment longitudinal beam, which is beneficial to the transmission of collision forces to the sill beam position and the front floor position respectively.

[0054] In addition, in this embodiment, as a preferred implementation form, as Figure 8 shown, a front bulkhead lower cross beam 11 arranged along the left - right direction of the whole vehicle is formed at the top of the structural body 10. The front ends of the rear sections 14 of the two front engine compartment longitudinal beams are both connected to the front bulkhead lower cross beam 11, and the front bulkhead lower cross beam 11, the connecting cross beam 1212, and the rear sections 14 of the two front engine compartment longitudinal beams and the connecting beam 17 are connected to form an annular structure. Thus, the annular structure with high strength can be utilized to better provide the structural strength at the bottom of the vehicle body front bulkhead, which is beneficial to improving the torsional stiffness of the front part of the vehicle body and enhancing vehicle safety.

[0055] In the specific implementation of this embodiment, as a preferred implementation form, a front bulkhead lower panel 12 is formed on the structural body 10 below the front bulkhead lower cross beam 11. The front bulkhead lower panel 12 includes a middle channel connecting plate 121 in the middle and front bulkhead lower panels 122 arranged on the left and right sides of the middle channel connecting plate 121. At the same time, a steering gear through - hole 124 for the installation and arrangement of the steering gear is preferably provided on the front bulkhead lower panel 12. For the related structural parts not mentioned in the front - lower part structure of this embodiment, the well - known vehicle body structures in the art can be referred to and will not be elaborated here.

[0056] In this embodiment, as a preferred implementation form, as Figure 2 and Figure 3 shown, on the side of the front bulkhead lower cross beam 11 facing the rear of the vehicle, a first reinforcing rib 111 extending along the left - right direction of the whole vehicle and a second reinforcing rib 112 extending along the up - down direction of the whole vehicle are provided. And the first reinforcing rib 111 is a plurality of ribs arranged at intervals along the up - down direction of the whole vehicle, and at least part of the first reinforcing ribs 111 penetrate from one end of the front bulkhead lower cross beam 11 to the other end. The second reinforcing rib 112 is a plurality of ribs arranged at intervals along the left - right direction of the whole vehicle, and each second reinforcing rib 112 intersects with at least part of the first reinforcing ribs 111.

[0057] By providing the intersecting first reinforcing rib 111 and second reinforcing rib 112 at the front bulkhead lower cross beam 11, the structural strength at the position of the front bulkhead lower cross beam 11 can be ensured. And since the first reinforcing rib 111 is transversely penetrated, the front bulkhead lower cross beam 11 also has good lateral (i.e., the left - right direction of the whole vehicle) stiffness, which can improve the torsional stiffness of the vehicle body.

[0058] It is worth mentioning that the cross-section of the lower front cross member 11 in this embodiment is designed in a U shape in the overall visual sense, so as to have better structural strength and facilitate the arrangement of the first reinforcing rib 111 and the second reinforcing rib 112. Secondly, the number and arrangement form of the first reinforcing rib 111 and the second reinforcing rib 112 can be set and adjusted accordingly according to the actual structural strengthening requirements of the lower front cross member 11. For example, the first reinforcing rib 111 is two or three arranged at intervals in the up-down direction of the whole vehicle, and each second reinforcing rib 112 and the first reinforcing rib 111 intersecting with it are designed in a "cross" shape, etc.

[0059] In addition, as a preferred implementation form, in this embodiment, third reinforcing ribs 113 extending in the front-rear direction of the whole vehicle are provided on the upper parts of the left and right front lower panels 122. The third reinforcing ribs 113 are multiple arranged at intervals in the left-right direction of the whole vehicle, and at least part of the third reinforcing ribs 113 are connected to the second reinforcing ribs 112 in one-to-one correspondence. The main advantage of such a setting is that it can increase the force transmission path and smoothness, and improve the structural strength of the position of the front lower panel 122.

[0060] When this embodiment is specifically implemented, the extension length of each third reinforcing rib 113 can be set and adjusted according to the structural strength requirements of the corresponding front lower panel 122. And as a preferred implementation form, on the side of the middle structure facing the rear of the whole vehicle, the protruding dimension of each third reinforcing rib 113 compared with the corresponding front lower panel 122 is smaller than the protruding dimension of each second reinforcing rib 112 compared with the lower front cross member 11, so as to facilitate the realization of the structural design with different structural strength requirements at different positions and the connection with the peripheral components at the lower front position.

[0061] It should be noted that the steering gear through hole 124 in this embodiment is specifically arranged on the left front lower panel 122. At the front end of the rear section 14 of the front engine compartment longitudinal beam in the front-rear direction of the whole vehicle in this embodiment, there is also a lapping portion 141 for lapping and connecting with the flange of the front engine compartment longitudinal beam, so as to improve the assembly convenience of the front part structure of the vehicle body.

[0062] It is worth mentioning that, as a preferred implementation form, in this embodiment, the front sill inner panel front sections 15 are formed on the left and right sides of the lower front panel 12, that is, the front sill inner panel front sections 15 are provided on the side facing the outside of the vehicle (in the left-right direction of the whole vehicle) of each front lower panel 122, and the rear sections 14 of the front engine compartment longitudinal beam and the torsion box 13 are formed at the bottoms of the left and right front lower panels 122.

[0063] In addition, in this embodiment, as a preferred implementation form, combined again with Figure 2As shown, the middle channel connecting plate 121 bulges upward, and a fourth reinforcing rib 1211 extending in the front-rear direction of the whole vehicle is provided at the top of the middle channel connecting plate 121. The front end of the fourth reinforcing rib 1211 extends to the front lower cross beam 11, and forms a support for the front lower cross beam 11 at least in the front-rear direction of the whole vehicle.

[0064] It can be understood that by arranging the fourth reinforcing rib 1211 at the top of the middle channel connecting plate 121 and enabling the front end of the fourth reinforcing rib 1211 to form a support for the front lower cross beam 11, the structural stability of the position of the front lower cross beam 11 during the frontal collision of the whole vehicle can be improved, and the ability of the front lower cross beam 11 to resist deformation and prevent tipping can be enhanced, which helps to increase the safety of the driver and passengers during the frontal collision of the vehicle.

[0065] Moreover, in the specific structure, the cross-section of the above-mentioned middle channel connecting plate 121 visually presents an inverted U shape as a whole, and the fourth reinforcing rib 1211 is arranged on the top surface of the middle channel connecting plate 121. As for the number and arrangement form of the fourth reinforcing rib 1211, they can be set and adjusted according to the actual structural strengthening requirements of the middle channel connecting plate 121. For example, it is three or four arranged at intervals in the left-right direction of the whole vehicle, etc.

[0066] In addition, in this embodiment, as a preferred implementation form, in combination with Figure 4 and Figure 6 As shown, fifth reinforcing ribs 1221 are provided on one side of each of the two front lower panels 122 facing the front of the vehicle, and the fifth reinforcing ribs 1221 include an annular rib 12211 at the center and a plurality of radial ribs 12212 arranged in a radial manner. The main advantage of such an arrangement is that an irregular rib covering a large area can be formed by the annular rib 12211 and the plurality of radial ribs 12212, enriching the force transmission path, and thus better improving the structural strength and collision safety of the left and right positions at the lower part of the front enclosure.

[0067] At the same time, in this embodiment, also as a preferred implementation form, a sixth reinforcing rib 123 is connected between each side torsion box 13 and the rear section of the front engine compartment longitudinal beam 14. The sixth reinforcing rib 123 is located on one side of the torsion box 13 facing the front of the vehicle, and the sixth reinforcing rib 123 is a plurality of ribs arranged at intervals in the up-down direction of the whole vehicle. Thus, the force transmission path can be further enriched by the sixth reinforcing rib 123 in combination with the fifth reinforcing rib 1221, increasing the structural strength of the left and right positions at the lower part of the front enclosure, which helps to increase the safety of the vehicle during a small overlap collision.

[0068] Of course, in this embodiment, the number and arrangement form of the fifth reinforcing rib 1221 and the sixth reinforcing rib 123 can also be set and adjusted according to the structural strength requirements of the lower part of the front enclosure. For example, the fifth reinforcing rib 1221 is four or five arranged in a staggered manner in sequence, and the sixth reinforcing rib 123 is three or four arranged at intervals in the up-down direction of the whole vehicle, etc.

[0069] In addition, in this embodiment, as a preferred implementation form, as Figure 5 shown, the connection beams 17 are formed at the bottoms of the lower front bulkhead panels 122 on both sides. As described above, one end of each side connection beam 17 is connected to the rear section of the front engine compartment longitudinal beam 14 on the same side, and the other end of each side connection beam 17 is connected to the connection cross beam 1212 located at the bottom of the center tunnel connection plate 121. Among them, at the end where each side connection beam 17 is connected to the rear section of the front engine compartment longitudinal beam 14, they are connected to the torsion box 13 on the same side in the left-right direction of the vehicle body.

[0070] Here, by providing the connection beam 17 connected to the rear section of the front engine compartment longitudinal beam 14, and enabling the two side connection beams 17 to be connected together through the connection cross beam 1212 at the bottom of the center tunnel connection plate 121, and arranging the end where the connection beam 17 is connected to the rear section of the front engine compartment longitudinal beam 14 to be connected to the torsion box 13, the lateral stiffness of the bottom of the lower front bulkhead can be increased, which helps to improve the torsional stiffness of the whole vehicle.

[0071] It should be noted that the so-called connection arrangement in this embodiment means that at least part of the projection of the end where the connection beam 17 is connected to the rear section of the front engine compartment longitudinal beam 14 and the torsion box 13 overlaps in the left-right direction of the vehicle body. And as Figure 4 shown, as a preferred implementation form, side plates 125 are respectively provided on the left and right sides of the lower front bulkhead panel 12, and the front sections of the inner side sill beams 15 on each side are respectively arranged on the side facing the outside of the vehicle of the corresponding side plate 125. And as Figure 7 shown, in the specific structure, each of the above side plates 125 is connected to the connection flange 114 of the front bulkhead panel, which is beneficial to the overall preparation of the structure body 10.

[0072] Specifically, as a preferred implementation form, diagonal support beams 18 are connected between the rear sections of the front engine compartment longitudinal beams 14 and the connection beams 17 on each side. Each side diagonal support beam 18 is located at the rear side of the corresponding side connection beam 17, and the rear sections of the front engine compartment longitudinal beams 14, the connection beams 17 and the diagonal support beams 18 on each side are all connected to form a triangular structure.

[0073] The main advantage of such an arrangement is that by providing the diagonal support beams 18, not only can the stiffness of the bottom of the lower front bulkhead be further increased, which can better improve the torsional stiffness of the whole vehicle and enhance the safety during vehicle collision, but also, together with the torsion box 13, a three-way support and stable structure can be formed at the rear of the rear section of the front engine compartment longitudinal beam 14, which helps to prevent the rear position of the rear section of the front engine compartment longitudinal beam 14 from breaking during vehicle collision.

[0074] Of course, the specific shape of the above triangular structure can be a standard triangle, or it can be a similar triangle as shown in Figure 5 .

[0075] In this embodiment, as a preferred implementation form, as Figure 4 and Figure 5 shown, each side torsion box 13 includes a first beam body 131 and a second beam body 132 arranged at intervals in the front and rear. The first beam body 131 and the second beam body 132 on each side are both connected between the rear section of the front engine compartment longitudinal beam 14 and the front section of the inner panel of the sill beam 15 on the same side, and the first beam body 131, the second beam body 132, the rear section of the front engine compartment longitudinal beam 14 and the front section of the inner panel of the sill beam 15 on each side are connected to form an annular structure. Thus, the characteristic of the large strength of the annular structure can be utilized to ensure the structural strength at the position of the torsion box 13.

[0076] At this time, as a specific setting form, in each side torsion box 13, both ends of the first beam body 131 and the second beam body 132 are respectively connected to the side plate 125 and the rear section of the front engine compartment longitudinal beam 14 on the same side as this torsion box 13, and this torsion box 13 is formed at the box-shaped structure area surrounded by the first beam body 131, the second beam body 132, the side plate 125 and the rear section of the front engine compartment longitudinal beam 14.

[0077] Of course, each side torsion box 13 can also be only composed of the first beam body 131 and the second beam body 132, that is, each beam body itself is a torsion box structure. And, to ensure that the torsion box 13 has better force transmission and energy absorption effects, as a preferred implementation form, the above-mentioned first beam body 131 and second beam body 132 both include two side walls arranged oppositely in the front-rear direction of the whole vehicle, and structural components such as support rib lines connected between the two side walls. Specifically, the support rib lines can include multiple reinforcing ribs connected end to end and arranged obliquely to form multiple triangular structures in each beam body, so as to obtain better structural strengthening effects and the force transmission and energy absorption effects of the torsion box 13.

[0078] Furthermore, still as Figure 5 shown, the above-mentioned connecting cross beam 1212 and the two side connecting beams 17 are in an inverted "J" shape in the overall visual sense to enhance the stiffness of the structural body 10 in the front-rear direction and the left-right direction of the whole vehicle. At the same time, in this embodiment, one side of each side plate 125 facing the outside in the left-right direction of the whole vehicle can also be connected to the A-pillar in the vehicle body. Specifically, this A-pillar can be the inner panel of the A-pillar or the lower section of the inner panel of the A-pillar, etc.

[0079] In this embodiment, as a preferred implementation form, continue to refer to Figure 5 shown, one end of each side connecting beam 17 connected to the rear section of the front engine compartment longitudinal beam 14 is arranged in connection with the first beam body 131 on the same side in the left-right direction of the whole vehicle. One end of each side inclined support beam 18 connected to the rear section of the front engine compartment longitudinal beam 14 is arranged in connection with the second beam body 132 on the same side in the left-right direction of the whole vehicle.

[0080] One end of the connecting beam 17 is connected to the rear section of the front engine compartment longitudinal beam 14, and the connection between one end of the diagonal support beam 18 and the rear section of the front engine compartment longitudinal beam 14 and the beam body forming the torsion box 13 is arranged in a connected manner, which can increase the lateral stiffness of the bottom of the lower part of the front enclosure and contribute to improving the torsional stiffness of the whole vehicle.

[0081] Certainly, the so-called connected arrangement here means that at least part of the projection in the left-right direction of the whole vehicle of one end of the connecting beam 17 connected to the rear section of the front engine compartment longitudinal beam 14 and the first beam body 131 overlaps, and at least part of the projection in the left-right direction of the whole vehicle of one end of the diagonal support beam 18 connected to the rear section of the front engine compartment longitudinal beam 14 and the second beam body 132 overlaps.

[0082] In addition, in this embodiment, as a preferred implementation form, front subframe mounting points 171 are provided in both connecting beams 17. Specifically, there are multiple front subframe mounting points 171 on each side, and at least one front subframe mounting point 171 is located at the connection position between the diagonal support beam 18 and the connecting beam 17. At the same time, reinforcing rib lines 172 are provided in the connecting beam 17, and part of the reinforcing rib lines 172 is connected to the front subframe mounting points 171.

[0083] It can be understood that by providing the front subframe mounting points 171 in the connecting beam 17, it is convenient to connect with the front subframe. And making the front subframe mounting points 171 located at the connection position between the diagonal support beam 18 and the connecting beam 17, and making the reinforcing rib lines 172 in the connecting beam 17 connected to the front subframe mounting points 171 can all increase the structural strength of the front subframe mounting points 171, ensure the stability of the front subframe installation, and at the same time facilitate the transmission of the force from the front subframe to other positions.

[0084] Certainly, the number of the front subframe mounting points 171 in this embodiment can be set and arranged according to the installation requirements of the front subframe. For example, two front subframe mounting points 171 are arranged at intervals in each connecting beam 17, etc. And when necessary, based on the structural strengthening requirements of the front subframe mounting points 171, only at least one front subframe mounting point 171 is located at the connection position between the diagonal support beam 18 and the connecting beam 17, or only the reinforcing rib lines 172 are provided in the connecting beam 17, etc.

[0085] Moreover, in specific implementation, the connecting beam 17 may include two side walls arranged oppositely, and the reinforcing rib lines 172 include multiple reinforcing ribs connected between the two side walls. Among them, part of the reinforcing ribs are arranged radially around the front subframe mounting points 171, and the other part forms multiple triangular structures with the two side walls. In this way, the force transmission path of the connecting beam 17 can be enriched and the collision effect can be improved.

[0086] Meanwhile, for the specific structures of components such as the rear section 14 of the front engine compartment longitudinal beam, the connecting cross beam 1212, and the inclined support beam 18 in this embodiment, the structural designs of the above-mentioned first beam body 131 or second beam body 132 can be preferably referred to, in order to achieve better structural strengthening effects and collision energy absorption effects. For example, the rear section 14 of the front engine compartment longitudinal beam includes side walls arranged at intervals in the left-right direction of the whole vehicle, and support rib lines connected between the two side walls, etc.

[0087] In addition, as a preferred implementation form, the structural body 10 of this embodiment is integrally die-cast from aluminum alloy or magnesium alloy, which is beneficial to the molding of the structural body 10 and can also reduce the weight of the structural body 10, facilitating the lightweight design of the vehicle body.

[0088] It is still worth mentioning that in this embodiment, in combination with Figure 5 As shown, multiple seventh strengthening ribs 126 arranged at intervals in the front-rear direction of the whole vehicle are also provided at the bottom of the middle channel connecting plate 121. The two ends of some of the seventh strengthening ribs 126 are respectively connected to the rear sections 14 of the front engine compartment longitudinal beams on both sides or the connecting beams 17 on both sides, and some of the seventh strengthening ribs 126 are connected between the middle channel connecting plate 121 and the front lower panel 122 on any one side, in order to improve the overall structural strength of the front lower panel 12.

[0089] Moreover, a rear flanging 1213 of the middle channel is provided at the rear side of the middle channel connecting plate 121 and is located at its own bottom. Multiple eighth strengthening ribs 127 similar to the structure of the above-mentioned strengthening rib line 172 are preferably provided between the connecting cross beam 1212 and the rear flanging 1213 of the middle channel to improve the structural strength of the rear part of the middle channel connecting plate 121. Of course, in addition to being similar to the structure of the above-mentioned strengthening rib line 172, the multiple eighth strengthening ribs 127 can also be designed in a "rice" shape as shown in Figure 5 Shown.

[0090] In addition, when necessary in this embodiment, strengthening ribs can also be provided on the side of the front lower cross beam 11 facing the front of the vehicle to increase the force transmission path and improve the structural performance. Moreover, it can be understood that the cooperation of components such as the torsion box 13, the rear section 14 of the front engine compartment longitudinal beam, the connecting beam 17, the connecting cross beam 1212, the inclined support beam 18, and each strengthening rib and rib line in this embodiment can greatly increase the force transmission path of the structural body 10 and improve its structural strength and collision effect.

[0091] The front body structure of this embodiment can reduce the number of components of the front body of the vehicle, facilitate weight reduction, and facilitate the preparation of the front body structure of the vehicle, helping to reduce the manufacturing cost of the vehicle body. At the same time, it is also beneficial to improve the structural strength of the front body position of the vehicle body, especially the lower part of the front body, and is conducive to improving the collision safety of the vehicle.

[0092] Embodiment 2

[0093] This embodiment relates to a vehicle, in which the front body panel structure in the first embodiment is provided.

[0094] For the vehicle of this embodiment, by setting the front body panel structure in the first embodiment, it is not only beneficial for preparation, achieving weight reduction and cost reduction design, but also enables the vehicle body to have better collision safety, thereby improving the overall vehicle quality and market competitiveness.

[0095] 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 front body structure, characterized in that: It includes a structure body (10) arranged along the left - right direction of the whole vehicle; The structure body (10) is integrally die - cast and is located below the front bulkhead (25), and rear sections of the front engine compartment longitudinal beams (14) and torsion boxes (13) are formed on both the left and right sides of the bottom of the structure body (10).

2. The front body structure according to claim 1, characterized in that: Front sections of the inner panels of the sill beams (15) are formed at the edges of both the left and right sides of the bottom of the structure body (10); One side of each torsion box (13) is connected to the rear section of the front engine compartment longitudinal beam (14) on the same side, and the other side of each torsion box (13) is connected to the front section of the inner panel of the sill beam (15) on the same side.

3. The front body structure according to claim 2, characterized in that: Connecting beams (17) are respectively formed on both the left and right sides of the bottom of the structure body (10); One end of each connecting beam (17) on each side is connected to the rear section of the front engine compartment longitudinal beam (14) on the same side, and the other end of each connecting beam (17) is connected to a connecting cross - beam (1212) formed on the bottom of the structure body (10).

4. The front body structure according to claim 3, characterized in that: At the end where each connecting beam (17) and the rear section of the front engine compartment longitudinal beam (14) are connected, they are arranged in connection in the left - right direction of the whole vehicle with the torsion box (13) on the same side.

5. The front body structure according to claim 4, characterized in that: Diagonal support beams (18) are connected between the rear sections of the front engine compartment longitudinal beams (14) and the connecting beams (17) on each side; Each diagonal support beam (18) is located behind the connecting beam (17) on the same side, and the rear sections of the front engine compartment longitudinal beams (14), the connecting beams (17) and the diagonal support beams (18) on each side are all connected to form a triangular structure.

6. The front body structure according to claim 5, characterized in that: Each torsion box (13) includes a first beam body (131) and a second beam body (132) arranged at intervals front - to - rear; The first beam body (131) and the second beam body (132) on each side are both connected between the rear section of the front engine compartment longitudinal beam (14) and the front section of the inner panel of the sill beam (15) on the same side, and the first beam body (131), the second beam body (132), the rear section of the front engine compartment longitudinal beam (14) and the front section of the inner panel of the sill beam (15) on each side are connected to form an annular structure.

7. The front body structure according to claim 6, characterized in that: At the end where each connecting beam (17) and the rear section of the front engine compartment longitudinal beam (14) are connected, they are arranged in connection in the left - right direction of the whole vehicle with the first beam body (131) on the same side; and / or, At the end where each diagonal support beam (18) and the rear section of the front engine compartment longitudinal beam (14) are connected, they are arranged in connection in the left - right direction of the whole vehicle with the second beam body (132) on the same side.

8. The front body structure according to claim 5, characterized in that: Front sub - frame mounting points (171) are provided in both of the connecting beams (17) on both sides; Each of the front subframe mounting points (171) on each side is plural, and at least one of the front subframe mounting points (171) is located at the connection position between the diagonal support beam (18) and the connection beam (17), and / or, reinforcing rib lines (172) are provided in the connection beam (17), and some of the reinforcing rib lines (172) are connected to the front subframe mounting points (171).

9. The front body structure according to any one of claims 3 to 8, characterized in that: A front lower cross beam (11) arranged in the left - right direction of the whole vehicle is formed at the top of the structure body (10); The front ends of the rear sections of the front engine compartment longitudinal beams (14) on both sides are connected to the front lower cross beam (11), and the front lower cross beam (11), the connection cross beam (1212), and the rear sections of the front engine compartment longitudinal beams (14) and the connection beam (17) on both sides are connected to form an annular structure.

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

Images