Vehicle body front end structure and commercial vehicle

Abstract

The vehicle body front end structure comprises a front end cross beam connected to a vehicle body, a left upper reinforcing longitudinal beam and a right upper reinforcing longitudinal beam are arranged between the rear end of the front end cross beam and the vehicle body, the front end cross beam is of a U-shaped structure, a rear end connecting part of the front end cross beam is connected with the vehicle body, and a rear end connecting part of the front end cross beam is connected with the vehicle body. The left upper reinforcing longitudinal beam and the right upper reinforcing longitudinal beam are arranged at the upper end of the connecting part of the front end cross beam, and the other end of the left upper reinforcing longitudinal beam and the other end of the right upper reinforcing longitudinal beam are connected with an automobile body. The vehicle front end structure has the advantages that the triangular stress structure formed by the front end cross beam, the upper left reinforcing longitudinal beam and the upper right reinforcing longitudinal beam serves as a force transmission structure to act together, the rigidity and stability of the vehicle front end structure are improved, the mounting requirement of assembly parts at the front end is met, the structure is simple, the weight is light, and mounting is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle structures, in particular to a vehicle body front end structure and a commercial vehicle. Background Art

[0002] The front-end structure of a vehicle refers to the system components composed of the parts at the front end of the vehicle. The front end of the traditional passenger car and light truck body is designed together with the body reinforcement longitudinal beam, which is in the form of integral stamping or welding. The reinforcement longitudinal beam structure is relatively long and bears the role of front collision energy absorption. However, the cab of a heavy truck is relatively high, and there are no front collision regulations for the cab body. If the design is based on the passenger car structure, the structure is bloated, the cost increases, the production process is complicated, the front-end structure cannot be separated from the body, and the production and installation are inconvenient. Therefore, a body front-end structure that meets the actual needs of new energy commercial vehicles is needed. Utility Model Content

[0003] In view of the problems in the related technology, the utility model proposes a vehicle body front end structure and a commercial vehicle to overcome the above technical problems existing in the existing related technology.

[0004] To this end, the specific technical solutions adopted by the utility model are as follows:

[0005] A vehicle body front end structure comprises a front end cross beam connected to the vehicle body, a left upper reinforcing longitudinal beam and a right upper reinforcing longitudinal beam are arranged between the rear end of the front end cross beam and the vehicle body, the front end cross beam is a U-shaped structure, the rear end connecting portion of the front end cross beam is connected to the vehicle body, the left upper reinforcing longitudinal beam and the right upper reinforcing longitudinal beam are arranged at the upper end of the connecting portion of the front end cross beam, and the other ends of the left upper reinforcing longitudinal beam and the right upper reinforcing longitudinal beam are connected to the vehicle body.

[0006] Furthermore, the front end cross beam includes a cross beam inner plate and a cross beam outer plate, and the cross beam outer plate is located at the upper end of the cross beam inner plate.

[0007] Furthermore, convex edges 1 are provided on both sides of the middle part of the inner plate of the cross beam, and convex edges 2 are provided on both sides of the middle part of the outer plate of the cross beam. The convex edges 1 and 2 extend upward and are closely connected with each other.

[0008] Furthermore, the inner plate of the cross beam and the outer plate of the cross beam are U-shaped structures, and the flanges of the inner plate of the cross beam and the outer plate of the cross beam are formed into a cavity structure through a welding process.

[0009] Furthermore, a number of weight-reducing holes are evenly arranged on the front end cross beam, a number of bolt assembly holes are arranged on the front end cross beam, a number of wiring harness holes are arranged on the side of the front end cross beam, and mask lock installation position grooves are symmetrically arranged on both sides of the front end of the front end cross beam.

[0010] Furthermore, the upper left reinforcing longitudinal beam and the upper right reinforcing longitudinal beam are arranged symmetrically, and the upper left reinforcing longitudinal beam and the upper right reinforcing longitudinal beam are both composed of two connecting plates, and flanges are provided at the outer connecting parts of the two connecting plates.

[0011] Furthermore, a mounting plate is provided at one end of the front end cross beam, the upper left reinforcing longitudinal beam and the upper right reinforcing longitudinal beam connected to the vehicle body, and the mounting plates on the front end cross beam, the upper left reinforcing longitudinal beam and the upper right reinforcing longitudinal beam are an integrally formed connection structure.

[0012] Furthermore, a mask buffer block mounting bracket, an exterior mounting bracket 1 and an exterior mounting bracket 2 are sequentially arranged on the front end cross beam, and the mask buffer block mounting bracket, the exterior mounting bracket 1 and the exterior mounting bracket 2 are symmetrically arranged on both sides of the front end cross beam.

[0013] On the other hand, the present application provides a commercial vehicle, comprising a vehicle body front end structure as described in any one of the above items.

[0014] The utility model provides a vehicle body front end structure and a commercial vehicle, and the beneficial effects are as follows: the utility model divides the vehicle body front end structure into a front end cross beam, an upper left reinforced longitudinal beam and an upper right reinforced longitudinal beam, and the front end cross beam is composed of a cross beam inner plate and a cross beam outer plate. The triangular force-bearing structure formed by the front end cross beam, the upper left reinforced longitudinal beam and the upper right reinforced longitudinal beam acts together as a force transmission structure to improve the rigidity of the vehicle front end and the load-bearing capacity to meet the installation requirements of the assembly parts on the front end. The structure is simple, the weight is light, and the installation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of a vehicle body front end structure according to an embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of the connection between a vehicle body front end structure and a vehicle body according to an embodiment of the utility model;

[0018] Figure 3 It is a schematic diagram of a front end cross beam structure of a vehicle body front end structure according to an embodiment of the utility model;

[0019] Figure 4 This is a schematic diagram of a crossbeam inner plate structure of a vehicle body front end structure according to an embodiment of the utility model;

[0020] Figure 5 This is a schematic diagram of a crossbeam outer plate structure of a vehicle body front end structure according to an embodiment of the utility model;

[0021] Figure 6 It is a schematic diagram of a connecting plate structure of a vehicle body front end structure according to an embodiment of the utility model;

[0022] Figure 7 It is a schematic diagram of a connecting plate structure of a vehicle body front end structure according to an embodiment of the utility model.

[0023] In the figure:

[0024] Front end cross beam; 2. Upper left reinforced longitudinal beam; 3. Upper right reinforced longitudinal beam; 4. Cross beam inner plate; 5. Cross beam outer plate; 6. Flange one; 7. Flange two; 8. Weight reduction hole; 9. Connecting plate; 10. Mounting plate; 11. Bolt assembly hole; 12. Mask lock installation position slot; 13. Mask buffer block mounting bracket; 14. Exterior mounting bracket one; 15. Exterior mounting bracket two. DETAILED DESCRIPTION

[0025] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0026] According to an embodiment of the utility model, a vehicle body front end structure and a commercial vehicle are provided.

[0027] Embodiment 1:

[0028] like Figure 1-7 As shown, the front end structure of the vehicle body according to the embodiment of the utility model includes a front end cross beam 1 connected to the vehicle body, and an upper left reinforcing longitudinal beam 2 and an upper right reinforcing longitudinal beam 3 are arranged between the rear end of the front end cross beam 1 and the vehicle body. The front end cross beam 1 is a U-shaped structure, and the rear end connecting portion of the front end cross beam 1 is connected to the vehicle body. The upper left reinforcing longitudinal beam 2 and the upper right reinforcing longitudinal beam 3 are arranged at the upper end of the connecting portion of the front end cross beam 1, and the other ends of the upper left reinforcing longitudinal beam 2 and the upper right reinforcing longitudinal beam 3 are connected to the vehicle body.

[0029] The front end structure of the vehicle body is divided into a front end cross beam 1, an upper left reinforcing longitudinal beam 2 and an upper right reinforcing longitudinal beam 3. The front end cross beam 1 is composed of a cross beam inner plate 4 and a cross beam outer plate 5. In application, a mounting bracket welding method or a bolt connection method is arranged on the front end cross beam 1 according to needs, such as a fender mounting bracket, a front bumper mounting bracket, etc. A plurality of bolt assembly holes 11 are arranged on the front end cross beam 1, and a mounting plate 10 at the rear end of the front end cross beam 1, the upper left reinforcing longitudinal beam 2 and the upper right reinforcing longitudinal beam 3 is provided with a plurality of mounting holes. The mounting plate 10 is preferably assembled with the vehicle body by bolts, and can also be connected by welding, including but not limited to, to meet the use requirements of new energy heavy trucks. It has a simple structure, light weight, convenient installation, easy precision control and high production efficiency.

[0030] The front end cross beam 1 includes a cross beam inner plate 4 and a cross beam outer plate 5 , and the cross beam outer plate 5 is located at the upper end of the cross beam inner plate 4 .

[0031] The middle part of the inner crossbeam plate 4 is provided with convex edges 6 on both sides, the middle part of the outer crossbeam plate 5 is provided with convex edges 7 on both sides, the convex edges 6 and 7 extend upwards and are connected to each other in pairs, and the convex edges 6 and 7 are connected by welding point technology.

[0032] The inner crossbeam plate 4 and the outer crossbeam plate 5 are preferably U-shaped structures, with an inner concave structure and a plurality of weight-reducing holes 8 to form a hollow weight-reducing structure. The flanges of the inner crossbeam plate 4 and the outer crossbeam plate 5 are welded to form a cavity structure through a welding point process.

[0033] like Figure 1-3 As shown, a number of weight-reducing holes 8 are evenly arranged on the front end cross beam 1, and the number, shape and size of the weight-reducing holes 8 are not specifically limited, and they can be circular, elliptical, etc. The weight-reducing holes 8 are mainly designed by topological optimization based on the stress characteristics of the front end cross beam 1, which effectively reduces the amount of material used in the front end cross beam 1, thereby reducing the weight of the front end cross beam 1 and achieving a lightweight design. A plurality of bolt assembly holes 11 are also arranged on the front end cross beam 1, and the bolt assembly holes 11 are convenient for the connection of the front end cross beam 1. A plurality of wiring harness holes are arranged on the side of the front end cross beam 1, and mask lock installation position grooves 12 are symmetrically arranged on both sides of the front end of the front end cross beam 1. The mask lock installation position grooves 12 provide a stable installation position for the mask lock, facilitate the installation of the hood lock, and further improve the overall structural strength.

[0034] Embodiment 2:

[0035] like Figure 1-7 As shown, the upper left reinforcing longitudinal beam 2 and the upper right reinforcing longitudinal beam 3 are symmetrically arranged, and the upper left reinforcing longitudinal beam 2 and the upper right reinforcing longitudinal beam 3 are both composed of two connecting plates 9, and flanges are provided at the outer connecting parts of the two connecting plates 9.

[0036] like Figure 1-3 As shown in Figures 7 and 8, a mounting plate 10 is provided at one end where the front end cross beam 1, the upper left reinforcing longitudinal beam 2 and the upper right reinforcing longitudinal beam 3 are connected to the vehicle body, and the mounting plate 10 on the front end cross beam 1, the upper left reinforcing longitudinal beam 2 and the upper right reinforcing longitudinal beam 3 is an integrally formed connection structure.

[0037] like Figure 1-2 As shown, the front end cross beam 1 is also provided with a mask buffer block mounting bracket 13, an exterior mounting bracket 14 and an exterior mounting bracket 2 15 in sequence, and the mask buffer block mounting bracket 13, the exterior mounting bracket 14 and the exterior mounting bracket 2 15 are symmetrically arranged on both sides of the front end cross beam 1, and the front end cross beam 1 is provided with a mask buffer block mounting bracket 13, the exterior mounting bracket 14 and the exterior mounting bracket 2 15 and other bracket structures in sequence, and multiple brackets can provide support and installation for masks, vehicle body exteriors, vehicle body accessories, etc., meet the installation requirements of vehicle body exteriors, vehicle body accessories, lamps, etc., and improve the overall stability.

[0038] On the other hand, the present application also provides a commercial vehicle, comprising a vehicle body front end structure as described in any one of the above.

[0039] In actual application, the front end structure of the vehicle body is divided into a front end cross beam 1, an upper left reinforcing longitudinal beam 2 and an upper right reinforcing longitudinal beam 3. The front end cross beam 1 is composed of a cross beam inner plate 4 and a cross beam outer plate 5. In application, a mounting bracket welding method or a bolt connection method is arranged on the front end cross beam 1 as needed, such as a fender mounting bracket, a front bumper mounting bracket, etc. A plurality of bolt assembly holes 11 are arranged on the front end cross beam 1, and a mounting plate 10 at the rear end of the front end cross beam 1, the upper left reinforcing longitudinal beam 2 and the upper right reinforcing longitudinal beam 3 is provided with a plurality of mounting holes. The mounting plate 10 is assembled with the vehicle body by bolts, and the front end structure is separated or assembled from the vehicle body. According to the needs, it can also be connected by welding, including but not limited to, to meet the use requirements of new energy heavy trucks. The structure is simple, light, easy to install, easy to control precision, high production efficiency, and effectively improves the practicality of the structure.

[0040] The triangular force-bearing structure formed by the front cross beam 1, the upper left reinforcing longitudinal beam 2 and the upper right reinforcing longitudinal beam 3 works together as a force transmission structure to improve the rigidity and stability of the front structure of the vehicle. The cross beam inner plate 4 and the cross beam outer plate 5 adopt a welded front cross beam 1, and cooperate with the hollow weight-reducing structure to form a closed structure. By setting the convex edge 1 6 and the convex edge 2 7, and cooperating with the reinforcing ribs therebetween, the connection strength between the cross beam inner plate 4 and the cross beam outer plate 5 can be effectively increased. The weight reduction of the front cross beam 1 can be effectively achieved by configuring a plurality of weight-reducing holes 8 on the front cross beam 1; the rigidity and strength of the front cross beam 1 can be changed by changing the position, shape, size, etc. of the weight-reducing holes 8, thereby expanding the strength and rigidity design space of the front cross beam 1.

[0041] To sum up, with the help of the above-mentioned technical scheme of the utility model, the front end structure of the vehicle body is divided into a front end cross beam 1, an upper left reinforced longitudinal beam 2 and an upper right reinforced longitudinal beam 3, and the front end cross beam 1 is composed of a cross beam inner plate 4 and a cross beam outer plate 5. The triangular force-bearing structure formed by the front end cross beam 1, the upper left reinforced longitudinal beam 2 and the upper right reinforced longitudinal beam 3 acts as a force transmission structure to improve the rigidity and stability of the front end structure of the vehicle to meet the installation requirements of the assembly parts on the front end. The structure is simple, light weight and easy to install.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle body front end structure, characterized in that: The invention comprises a front cross beam (1) connected to a vehicle body, a left upper reinforcing longitudinal beam (2) and a right upper reinforcing longitudinal beam (3) being arranged between the rear end of the front cross beam (1) and the vehicle body, the front cross beam (1) being in a U-shaped structure, the rear end connecting portion of the front cross beam (1) being connected to the vehicle body, the left upper reinforcing longitudinal beam (2) and the right upper reinforcing longitudinal beam (3) being arranged at the upper end of the connecting portion of the front cross beam (1), and the other ends of the left upper reinforcing longitudinal beam (2) and the right upper reinforcing longitudinal beam (3) being connected to the vehicle body.

2. A vehicle body front end structure according to claim 1, characterized in that: The front end cross beam (1) comprises a cross beam inner plate (4) and a cross beam outer plate (5), wherein the cross beam outer plate (5) is located at the upper end of the cross beam inner plate (4).

3. A vehicle body front end structure according to claim 2, characterized in that: The inner crossbeam plate (4) is provided with a convex edge (6) on both sides of the middle part, and the outer crossbeam plate (5) is provided with a convex edge (7) on both sides of the middle part. The convex edge (6) and the convex edge (7) extend upwards and are connected to each other.

4. The front end structure of a vehicle body according to claim 3, characterized in that: The crossbeam inner plate (4) and the crossbeam outer plate (5) are U-shaped structures, and the flanges of the crossbeam inner plate (4) and the crossbeam outer plate (5) are formed into a cavity structure through a welding point process.

5. The vehicle body front end structure according to claim 1, characterized in that: A plurality of weight-reducing holes (8) are evenly arranged on the front crossbeam (1), a plurality of bolt assembly holes (11) are also arranged on the front crossbeam (1), a plurality of wiring harness holes are arranged on the side of the front crossbeam (1), and mask lock installation position grooves (12) are symmetrically arranged on both sides of the front end of the front crossbeam (1).

6. The vehicle body front end structure according to claim 1, characterized in that: The upper left reinforcing longitudinal beam (2) and the upper right reinforcing longitudinal beam (3) are symmetrically arranged; the upper left reinforcing longitudinal beam (2) and the upper right reinforcing longitudinal beam (3) are both formed by two connecting plates (9); flanges are provided at the outer connecting portions of the two connecting plates (9).

7. The vehicle body front end structure according to claim 1, characterized in that: A mounting plate (10) is provided at one end of the front cross beam (1), the upper left reinforcing longitudinal beam (2) and the upper right reinforcing longitudinal beam (3) connected to the vehicle body; the mounting plates (10) on the front cross beam (1), the upper left reinforcing longitudinal beam (2) and the upper right reinforcing longitudinal beam (3) are an integrally formed connection structure.

8. The vehicle body front end structure according to claim 1, characterized in that: The front end cross beam (1) is also provided with a mask buffer block mounting bracket (13), an exterior decoration mounting bracket 1 (14) and an exterior decoration mounting bracket 2 (15) in sequence, and the mask buffer block mounting bracket (13), the exterior decoration mounting bracket 1 (14) and the exterior decoration mounting bracket 2 (15) are symmetrically arranged on both sides of the front end cross beam (1).

9. A commercial vehicle, characterized in that: The vehicle body front end structure comprises any one of claims 1-7.

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