Automobile body front structure and automobile

Abstract

The utility model relates to an automobile body front structure and an automobile. The vehicle body front structure comprises a water guide groove assembly and a column A. The vehicle body front structure further comprises a first reinforcing piece and a second reinforcing piece. The first reinforcing piece is arranged in the water guide groove assembly, the first end of the first reinforcing piece is connected with the front side groove wall of the water guide groove assembly, and the second end of the first reinforcing piece is connected with the rear side groove wall of the water guide groove assembly; the first end of the second reinforcing part and the second end of the first reinforcing part are oppositely arranged, and the first end of the second reinforcing part, the rear side groove wall of the water guide groove assembly and the second end of the first reinforcing part are sequentially connected; the second end of the second reinforcing piece is connected with the A column. The water guide groove assembly and the A column are connected through the first reinforcing piece and the second reinforcing piece, so that force at the water guide groove assembly can be effectively transmitted to the A column at the rear portion of the automobile body, the transmission path of the force is optimized, and therefore the NVH performance and the durability of the automobile are effectively improved.

Description

Technical Field

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

[0002] With the improvement of people's living standards and the rapid development of the automobile industry, drivers and passengers have higher and higher requirements for automobile comfort, and therefore the requirements for the NVH (Noise, Vibration, Harshness) performance of the vehicle body are becoming more and more stringent.

[0003] At present, in the design of the front structure of the vehicle body, the connection between the water channel and the A-pillar is weak, resulting in weak rigidity of the front part of the vehicle body. When subjected to road excitation, the local deformation is too large, resulting in excessive noise inside the vehicle, affecting the durability and NVH performance of the vehicle. Utility Model Content

[0004] One of the purposes of the utility model is to provide a front body structure to solve the technical problems in the prior art that the connection between the water guide groove and the A-pillar is weak, the front body rigidity is weak, the local deformation is too large when subjected to road excitation, the noise inside the car is too loud, and the durability and NVH performance of the car are affected; the second purpose is to provide a car.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A vehicle front structure includes a water channel assembly and an A-pillar, and the vehicle front structure also includes a first reinforcement and a second reinforcement; the first reinforcement is arranged in the water channel assembly, the first end of the first reinforcement is connected to the front channel wall of the water channel assembly, and the second end of the first reinforcement is connected to the rear channel wall of the water channel assembly; the first end of the second reinforcement and the second end of the first reinforcement are arranged opposite to each other, the first end of the second reinforcement, the rear channel wall of the water channel assembly, and the second end of the first reinforcement are connected in sequence; the second end of the second reinforcement is connected to the A-pillar.

[0007] According to the above technical means, the water channel assembly and the A-pillar are connected by the first reinforcement and the second reinforcement, so that the force at the water channel assembly can be effectively transmitted to the A-pillar at the rear of the vehicle body, optimizing the force transmission path, thereby effectively improving the NVH performance and durability of the vehicle.

[0008] Furthermore, the front structure of the vehicle body also includes a front wheel bulge, at least the upper end surface of the front wheel bulge is connected to the water guide channel assembly; the connection between the first end of the first reinforcement and the front side groove wall of the water guide channel assembly is close to the connection between the upper end surface of the front wheel bulge and the water guide channel assembly.

[0009] According to the above technical means, by connecting the upper end face of the front wheel bulge with the water channel assembly, the local stiffness of the connection between the water channel assembly and the front wheel bulge can be improved, avoiding local cracking of the water channel assembly and the front wheel bulge, the NVH performance of the whole vehicle, and the durability problems of the local area. Moreover, by connecting the first end of the first reinforcement with the front side groove wall of the water channel assembly close to the connection between the upper end face of the front wheel bulge and the water channel assembly, the force at the front wheel bulge can be transmitted to the A-pillar through the water channel assembly, the first reinforcement, and the second reinforcement, thereby optimizing the force transmission path and effectively improving the NVH performance and durability of the vehicle.

[0010] Furthermore, the front structure of the vehicle body also includes a shock absorber mounting seat, which is connected to the upper end surface of the front wheel bulge; the connection between the first end of the first reinforcement and the front side groove wall of the water guide groove assembly is close to the shock absorber mounting seat.

[0011] According to the above technical means, by placing the connection between the first end of the first reinforcement and the front side groove wall of the water channel assembly close to the shock absorber mounting seat, the force at the shock absorber mounting seat can be quickly and effectively transmitted to the A-pillar through the water channel assembly, the first reinforcement and the second reinforcement, thereby optimizing the force transmission path and effectively improving the NVH performance and durability performance of the vehicle.

[0012] Further, in the Y direction of the vehicle body, the first reinforcement is arranged close to the end of the water guide channel assembly.

[0013] According to the above technical means, since the force at the end of the water gutter assembly is relatively large in the Y direction of the car, the first reinforcement is arranged close to the end of the water gutter assembly, so that the force at the water gutter assembly can be effectively and quickly transmitted to the rear of the vehicle body, thereby effectively improving the NVH performance and durability performance of the vehicle.

[0014] Furthermore, the front structure of the vehicle body also includes a cabin longitudinal beam and a wheel hub reinforcement; the upper end of the cabin longitudinal beam is connected to the lower end of the front wheel bulge; the wheel hub reinforcement is connected to the side wall of the front wheel bulge, the upper end of the wheel hub reinforcement extends to the upper end of the side wall of the front wheel bulge, the lower end of the wheel hub reinforcement extends to the lower end of the side wall of the front wheel bulge, and the lower end of the wheel hub reinforcement is connected to the cabin longitudinal beam.

[0015] According to the above-mentioned technical means, the wheel hub reinforcement is connected to the side wall of the front wheel bulge, the upper end of the wheel hub reinforcement extends to the upper end of the side wall of the front wheel bulge, the lower end of the wheel hub reinforcement extends to the lower end of the side wall of the front wheel bulge, and the lower end of the wheel hub reinforcement is connected to the cabin longitudinal beam. The wheel hub reinforcement forms an effective force transmission path. When the vehicle body is impacted by the load from the ground, the force transmission path formed by the wheel hub reinforcement can effectively share the load borne by the front wheel bulge, thereby ensuring the strength performance requirements of the front wheel bulge.

[0016] Furthermore, the front structure of the vehicle body also includes a front subframe, a third reinforcement and a fourth reinforcement; the front subframe is connected to the lower end of the cabin longitudinal beam, and the cabin longitudinal beam is provided with a longitudinal beam cavity; the third reinforcement and the fourth reinforcement are respectively arranged in the longitudinal beam cavity, the upper end of the third reinforcement and the upper end of the fourth reinforcement are respectively connected to the upper wall of the cabin longitudinal beam, and at least one of the upper end of the third reinforcement and the upper end of the fourth reinforcement is sequentially connected to the upper wall of the cabin longitudinal beam and the lower end of the hub reinforcement, and the lower end of the third reinforcement and the lower end of the fourth reinforcement are respectively connected to the lower wall of the cabin longitudinal beam.

[0017] According to the above technical means, the third reinforcement and the fourth reinforcement are respectively arranged in the longitudinal beam cavity, the upper end of the third reinforcement and the upper end of the fourth reinforcement are respectively connected to the upper wall of the cabin longitudinal beam, the lower end of the third reinforcement and the lower end of the fourth reinforcement are respectively connected to the lower wall of the cabin longitudinal beam, the third reinforcement and the fourth reinforcement can be used to reinforce the cabin longitudinal beam, the material thickness of the cabin longitudinal beam can be designed to be thinner, thereby achieving lightweight design and reducing production costs.

[0018] Furthermore, the front structure of the vehicle body also includes a front subframe reinforcement plate, the upper surface of the front subframe reinforcement plate is connected to the lower wall of the cabin longitudinal beam, and the lower surface of the front subframe reinforcement plate is connected to the front subframe; at least one of the lower end of the third reinforcement and the lower end of the fourth reinforcement is connected to the lower wall of the cabin longitudinal beam and the front subframe reinforcement plate in sequence.

[0019] According to the above technical means, the front subframe reinforcement plate is connected between the cabin longitudinal beam and the front subframe, which can effectively increase the rigidity of the cabin longitudinal beam and the rigidity of the front subframe, as well as the connection strength between the cabin longitudinal beam and the front subframe. By connecting at least one of the lower end of the third reinforcement member and the lower end of the fourth reinforcement member to the lower wall of the cabin longitudinal beam and the front subframe reinforcement plate in sequence, at least one of the lower end of the third reinforcement member and the lower end of the fourth reinforcement member is connected to the front subframe reinforcement plate, and the force from the front subframe reinforcement plate can be effectively transmitted to at least one of the third reinforcement member and the fourth reinforcement member, and then transmitted upward by at least one of the third reinforcement member and the fourth reinforcement member, thereby optimizing the force transmission path.

[0020] Furthermore, the front structure of the vehicle body also includes a subframe mounting threaded tube; the cabin longitudinal beam is connected to the front subframe through the subframe mounting threaded tube, and part of the subframe mounting threaded tube extends into the longitudinal beam cavity; at least one of the lower end of the third reinforcement and the lower end of the fourth reinforcement is also connected to the part of the subframe mounting threaded tube extending into the longitudinal beam cavity.

[0021] According to the above technical means, the force transmission path is made more direct and effective.

[0022] Furthermore, the front structure of the vehicle body also includes a fifth reinforcement, a first bolt and a second bolt; in the Y direction of the vehicle body, the first end of the fifth reinforcement is close to the outside of the vehicle body relative to the second end of the fifth reinforcement; the first end of the fifth reinforcement is connected to the upper end surface of the front wheel bulge through the first bolt, and the second end of the fifth reinforcement is connected to the front side groove wall of the water guide groove assembly through the second bolt.

[0023] According to the above technical means, by setting the fifth reinforcement, the connection strength between the water channel assembly and the front wheel bulge can be increased, the structural stability of the water channel assembly can be increased, and the NVH performance of the whole vehicle can be improved. Moreover, the first end of the fifth reinforcement is connected to the upper end face of the front wheel bulge, which can also increase the local structural strength of the front wheel bulge and improve the NVH performance of the shock absorber mounting seat attachment point installation position. The first end of the fifth reinforcement is connected to the upper end face of the front wheel bulge using a first bolt, and the second end of the fifth reinforcement is connected to the front side groove wall of the water channel assembly using a second bolt, which has the advantage of simple and convenient installation.

[0024] A car comprises a car body, wherein the car body is provided with the above-mentioned car body front structure.

[0025] Beneficial effects of the utility model:

[0026] (1) The utility model transmits the force from the engine and the road in sequence through the third reinforcement, the fourth reinforcement, the wheel hub reinforcement, the first reinforcement, the second reinforcement, and finally to the A-pillar, that is, the force from the engine and the road can be effectively transmitted to the rear of the vehicle body, optimizing the force transmission path; at the same time, the engine compartment area and the front subframe are integrated into a complete closed-loop structure, the lateral and longitudinal stiffness of the entire front section of the vehicle body is strengthened, and a closed force transmission path is formed, thereby effectively improving the NVH performance and durability performance of the entire vehicle.

[0027] (2) The utility model optimizes the force transmission path, which can effectively avoid the thickening design of the front wheel bulge due to performance requirements. That is, the weight of the sheet metal is reduced while meeting the same performance, thereby achieving lightweight of the vehicle body and facilitating weight reduction of the vehicle body.

[0028] (3) The utility model forms a closed ring structure for the entire front structure of the vehicle body through the combined connection of the first reinforcement member, the second reinforcement member, the wheel hub reinforcement member, the third reinforcement member, the fourth reinforcement member, and the fifth reinforcement member, which is more conducive to strengthening the rigidity of the vehicle body, thereby improving the NVH performance and durability of the vehicle body; the use of this closed ring structure can increase the torsional rigidity of the vehicle body under the same weight condition, improve the NVH performance of the whole vehicle, and improve the general road fatigue damage of the vehicle body.

[0029] (4) The utility model solves the problem of weak connection between the front wheel bulge and the gutter assembly, the cabin longitudinal beam, the front subframe and the A-pillar, and the unclear force transmission path; and solves the problem of weak rigidity of the front part of the vehicle body, which leads to excessive local deformation when subjected to road excitation, and the problem of increased internal force transmitted to the vehicle body due to poor vibration isolation ability, which leads to local cracking of the vehicle body and excessive noise inside the vehicle, affecting the durability and NVH performance of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the front structure of the vehicle body of the utility model at a first angle;

[0031] Figure 2 It is a structural schematic diagram of the front structure of the vehicle body of the utility model from a second angle;

[0032] Figure 3 It is a structural schematic diagram of the front structure of the vehicle body of the utility model from a third angle;

[0033] Figure 4 It is a structural schematic diagram of an enlarged view of the front wheel bulge in the figure;

[0034] Figure 5 It is a structural schematic diagram of the front structure of the vehicle body of the utility model from a fourth angle;

[0035] Figure 6 It is a structural schematic diagram of the third reinforcement member and the fourth reinforcement member of the utility model;

[0036] Figure 7 It is a structural schematic diagram of the fifth reinforcement member of the utility model;

[0037] Figure 8 It is a structural schematic diagram of the first wheel hub reinforcement of the utility model;

[0038] Fig. 9 It is a structural schematic diagram of the second wheel hub reinforcement of the utility model;

[0039] Fig.10 It is a schematic structural diagram of the third reinforcement member of the utility model;

[0040] Fig.11 It is a structural schematic diagram of the fourth reinforcement member of the utility model;

[0041] Fig.12 It is a structural schematic diagram of the first reinforcement member of the utility model;

[0042] Fig.13 It is a structural schematic diagram of the second reinforcement member of the utility model;

[0043] Fig.14 for Figure 6 Schematic diagram of the structure from another angle.

[0044] Among them, 10 is a water channel assembly; 11 is a front channel wall of the water channel assembly; 12 is a rear channel wall of the water channel assembly; 13 is a channel bottom of the water channel assembly;

[0045] 20 - first reinforcement member; 21 - first mounting portion of the first reinforcement member; 22 - second mounting portion of the first reinforcement member; 23 - third mounting portion of the first reinforcement member; 24 - fourth mounting portion of the first reinforcement member;

[0046] 30 - second reinforcement member; 31 - first mounting hole of second reinforcement member; 32 - second mounting hole of second reinforcement member;

[0047] 40 - wheel hub reinforcement; 41 - first wheel hub reinforcement; 411 - first connection portion of first wheel hub reinforcement; 412 - second connection portion of first wheel hub reinforcement; 413 - third connection portion of first wheel hub reinforcement; 414 - fourth connection portion of first wheel hub reinforcement; 415 - fifth connection portion of first wheel hub reinforcement; 416 - sixth connection portion of first wheel hub reinforcement;

[0048] 42 - second wheel hub reinforcement; 421 - first connection portion of second wheel hub reinforcement; 422 - second connection portion of second wheel hub reinforcement; 423 - third connection portion of second wheel hub reinforcement; 424 - fourth connection portion of second wheel hub reinforcement; 425 - fifth connection portion of second wheel hub reinforcement;

[0049] 50 - third reinforcement member; 51 - first connection portion of the third reinforcement member; 52 - second connection portion of the third reinforcement member; 53 - third connection portion of the third reinforcement member;

[0050] 60 - fourth reinforcement member; 61 - first connection portion of fourth reinforcement member; 62 - second connection portion of fourth reinforcement member; 63 - third connection portion of fourth reinforcement member; 64 - fourth connection portion of fourth reinforcement member;

[0051] 70 - front subframe reinforcement plate;

[0052] 80 - fifth reinforcement member; 81 - first mounting hole of the fifth reinforcement member; 82 - second mounting hole of the fifth reinforcement member;

[0053] 91 - A-pillar; 92 - front wheel bulge; 93 - shock absorber mounting seat; 94 - cabin longitudinal beam;

[0054] 101 - Subframe mounting threaded tube; 102 - First bolt; 103 - Second bolt. DETAILED DESCRIPTION

[0055] The following will describe the implementation of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention, not for limiting the scope of protection of the present invention.

[0056] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0057] This embodiment provides a front structure of a vehicle body, which is a part of the vehicle body. Figures 1 to 14 As shown, the front structure of the vehicle body includes a water channel assembly 10, an A-pillar 91, a first reinforcement 20 and a second reinforcement 30; the first reinforcement 20 is arranged in the water channel assembly 10, the first end of the first reinforcement 20 is connected to the front channel wall 11 of the water channel assembly, and the second end of the first reinforcement 20 is connected to the rear channel wall 12 of the water channel assembly; the first end of the second reinforcement 30 and the second end of the first reinforcement 20 are arranged opposite to each other, and the first end of the second reinforcement 30, the rear channel wall 12 of the water channel assembly, and the second end of the first reinforcement 20 are connected in sequence; the second end of the second reinforcement 30 is connected to the A-pillar 91.

[0058] Among them, the water drainage channel assembly 10 (Water Drainage Channel) of the front structure of the vehicle body is located at the windshield. The main function of the water drainage channel assembly 10 is to guide rainwater and other moisture from the surface of the car to the ground, preventing moisture from accumulating inside the car or inside the body, thereby avoiding problems such as corrosion and mildew.

[0059] In the front-to-back direction of the vehicle body, the water channel assembly 10 includes a front channel wall 11 of the water channel assembly, a channel bottom 13 of the water channel assembly, and a rear channel wall 12 of the water channel assembly. The front channel wall 11 of the water channel assembly, the channel bottom 13 of the water channel assembly, and the rear channel wall 12 of the water channel assembly enclose a cavity for rainwater and other water to flow. In the embodiment of the present application, the first reinforcement 20 is arranged in the water channel assembly 10, the first end of the first reinforcement 20 is connected to the front channel wall 11 of the water channel assembly, the second end of the first reinforcement 20 is connected to the rear channel wall 12 of the water channel assembly, and there is a gap between the first reinforcement 20 and the channel bottom 13 of the water channel assembly, and the gap is for rainwater and other water to flow, so as to avoid the first reinforcement 20 blocking the water channel assembly 10.

[0060] The A-pillar 91 refers to the pillar connecting the roof and the front windshield on both sides. The A-pillar 91 is one of the important components of the body structure of the car. The main functions of the A-pillar 91 include: Support structure: The A-pillar 91 is part of the body structure. It supports the roof and the front windshield and provides the necessary structural strength and stability for the car. Safety protection: In the event of a collision, the A-pillar 91 can absorb and disperse the impact force, protect the integrity of the passenger compartment, and thus provide safety protection for the passengers.

[0061] In the front structure of the vehicle body of the embodiment of the present application, the first reinforcement 20 is arranged in the water channel assembly 10, the first end of the first reinforcement 20 is connected to the front channel wall 11 of the water channel assembly, and the second end of the first reinforcement 20 is connected to the rear channel wall 12 of the water channel assembly; the first end of the second reinforcement 30 and the second end of the first reinforcement 20 are arranged opposite to each other, the first end of the second reinforcement 30, the rear channel wall 12 of the water channel assembly, and the second end of the first reinforcement 20 are connected in sequence; the second end of the second reinforcement 30 is connected to the A-pillar 91. The water channel assembly 10 and the A-pillar 91 are connected by the first reinforcement 20 and the second reinforcement 30, so that the force at the water channel assembly 10 can be effectively transmitted to the A-pillar at the rear of the vehicle body, optimizing the force transmission path, thereby effectively improving the NVH performance and durability performance of the vehicle.

[0062] In this embodiment, the specific structure of the water gutter assembly 10 can be set according to usage requirements. For example, the water gutter assembly 10 includes components such as a water gutter body and a water gutter reinforcement. The embodiment of the present application does not specifically limit the structure of the water gutter assembly 10.

[0063] In this embodiment, in the Y direction of the vehicle body, the first reinforcement 20 is disposed near the end of the water channel assembly 10. Since the force at the end of the water channel assembly 10 is relatively large in the Y direction of the vehicle, the first reinforcement 20 is disposed near the end of the water channel assembly 10, so that the force at the water channel assembly 10 can be effectively and quickly transmitted to the rear of the vehicle body, thereby effectively improving the NVH performance and durability performance of the vehicle.

[0064] In this embodiment, the front structure of the vehicle body also includes a front wheel bulge 92, and at least the upper end surface of the front wheel bulge 92 is connected to the water channel assembly 10; the connection between the first end of the first reinforcement 20 and the front side groove wall 11 of the water channel assembly is close to the connection between the upper end surface of the front wheel bulge 92 and the water channel assembly 10.

[0065] The front wheel bump 92 refers to the plate installed above the front wheel. Its main functions include: Aerodynamics: The front wheel bump 92 helps improve the aerodynamic performance of the car and reduce air resistance, thereby improving fuel efficiency and car speed. The front wheel bump 92 can smoothly guide air around the wheel arch to reduce turbulence. Prevent mud and water splashing: The front wheel bump 92 can prevent mud, water, snow, ice, etc. from splashing from the wheels to other parts of the car body or passengers, keeping the car clean and reducing pollution to pedestrians and other cars. Protect the car body: The front wheel bump 92 can protect the side of the car body from damage by road debris and pebbles, extending the service life of the car body paint and sheet metal.

[0066] In the front structure of the vehicle body of the embodiment of the present application, the upper end face of the front wheel bulge 92 is connected to the water channel assembly 10, which can improve the local stiffness of the connection between the water channel assembly 10 and the front wheel bulge 92, avoid local cracking of the water channel assembly 10 and the front wheel bulge 92, the NVH performance of the whole vehicle, and the durability of the local area. Moreover, by connecting the first end of the first reinforcement 20 with the front side groove wall 11 of the water channel assembly close to the connection between the upper end face of the front wheel bulge 92 and the water channel assembly 10, the force at the front wheel bulge 92 can be transmitted to the A-pillar 91 through the water channel assembly 10, the first reinforcement 20, and the second reinforcement 30, thereby optimizing the force transmission path and effectively improving the NVH performance and durability of the vehicle.

[0067] In this embodiment, the front structure of the vehicle body also includes a shock absorber mounting seat 93, which is connected to the upper end surface of the front wheel bulge 92; the connection between the first end of the first reinforcement 20 and the front side groove wall 11 of the water guide groove assembly is close to the shock absorber mounting seat 93.

[0068] The shock absorber mounting seat 93 is used to connect with the shock absorber assembly, and the vibration of the shock absorber assembly is transmitted to the front wheel bulge 92 through the shock absorber mounting seat 93. Therefore, the connection between the first end of the first reinforcement 20 and the front side groove wall 11 of the water channel assembly is close to the shock absorber mounting seat 93, so that the force at the shock absorber mounting seat 93 is quickly and effectively transmitted to the A-pillar 91 through the water channel assembly 10, the first reinforcement 20, and the second reinforcement 30, thereby optimizing the force transmission path, thereby effectively improving the NVH performance and durability performance of the automobile.

[0069] In this embodiment, the front structure of the vehicle body also includes a cabin longitudinal beam 94 and a wheel hub reinforcement 40; the upper end of the cabin longitudinal beam 94 is connected to the lower end of the front wheel bulge 92; the wheel hub reinforcement 40 is connected to the side wall of the front wheel bulge 92, the upper end of the wheel hub reinforcement 40 extends to the upper end of the side wall of the front wheel bulge 92, the lower end of the wheel hub reinforcement 40 extends to the lower end of the side wall of the front wheel bulge 92, and the lower end of the wheel hub reinforcement 40 is connected to the cabin longitudinal beam 94.

[0070] The engine compartment longitudinal beam 94 refers to the longitudinal beam in the car. The engine compartment longitudinal beam 94 is located below the engine compartment, extending from the front to the rear of the car, and connected to the transverse frame or body structure, together forming the chassis skeleton of the car. The main function of the engine compartment longitudinal beam 94 is to provide rigidity and strength for the car, support important components such as the engine and gearbox, and help disperse the energy generated during a collision to protect the safety of passengers. It also provides the necessary rigidity during the driving process of the car to maintain the overall stability of the car.

[0071] In the embodiment of the present application, the wheel hub reinforcement 40 is connected to the side wall of the front wheel bulge 92, the upper end of the wheel hub reinforcement 40 extends to the upper end of the side wall of the front wheel bulge 92, the lower end of the wheel hub reinforcement 40 extends to the lower end of the side wall of the front wheel bulge 92, and the lower end of the wheel hub reinforcement 40 is connected to the cabin longitudinal beam 94. The wheel hub reinforcement 40 forms an effective force transmission path. When the vehicle body is impacted by the load from the ground, the force transmission path formed by the wheel hub reinforcement 40 can effectively share the load borne by the front wheel bulge 92, thereby ensuring the strength performance requirements of the front wheel bulge 92.

[0072] In this embodiment, the wheel hub reinforcement 40 is a groove-like structure with an opening, and the opening of the groove-like structure is connected to the side wall of the front wheel bulge 92 to form a cavity between the wheel hub reinforcement 40 and the side wall of the front wheel bulge 92 to increase the rigidity of the front wheel bulge 92 and prevent the front wheel bulge 92 from tilting in the Y direction of the vehicle body.

[0073] In this embodiment, the wheel hub reinforcement 40 includes a first wheel hub reinforcement 41 and a second wheel hub reinforcement 42. The lower end of the first wheel hub reinforcement 41 is connected to the upper end of the second wheel hub reinforcement 42. The lower end of the first wheel hub reinforcement 41 is connected to the upper end of the second wheel hub reinforcement 42 and then snap-connected to the side wall of the front wheel bulge 92. The upper end of the first wheel hub reinforcement 41 extends to the upper end of the side wall of the front wheel bulge 92, the lower end of the second wheel hub reinforcement 42 extends to the lower end of the side wall of the front wheel bulge 92, and the lower end of the second wheel hub reinforcement 42 is connected to the cabin longitudinal beam 94. The wheel hub reinforcement 40 includes a first wheel hub reinforcement 41 and a second wheel hub reinforcement 42, and the first wheel hub reinforcement 41 and the second wheel hub reinforcement 42 are connected, which can increase the stiffness of the wheel hub reinforcement 40, especially the stiffness of the overlapping area, and effectively prevent the front wheel bulge 92 from tilting in the Y direction of the vehicle body. In addition, the height of the wheel hub reinforcement 40 can be adjusted according to usage requirements, which has the advantage of being more flexible.

[0074] In this embodiment, the front structure of the vehicle body also includes a front subframe, a third reinforcement 50 and a fourth reinforcement 60; the front subframe is connected to the lower end of the cabin longitudinal beam 94, and the cabin longitudinal beam 94 is provided with a longitudinal beam cavity; the third reinforcement 50 and the fourth reinforcement 60 are respectively arranged in the longitudinal beam cavity, the upper end of the third reinforcement 50 and the upper end of the fourth reinforcement 60 are respectively connected to the upper wall of the cabin longitudinal beam 94, and at least one of the upper end of the third reinforcement 50 and the upper end of the fourth reinforcement 60 is connected to the upper wall of the cabin longitudinal beam 94 and the lower end of the hub reinforcement 40 in sequence, and the lower end of the third reinforcement 50 and the lower end of the fourth reinforcement 60 are respectively connected to the lower wall of the cabin longitudinal beam 94.

[0075] In the embodiment of the present application, the third reinforcement 50 and the fourth reinforcement 60 are respectively arranged in the longitudinal beam cavity, the upper end of the third reinforcement 50 and the upper end of the fourth reinforcement 60 are respectively connected to the upper wall of the cabin longitudinal beam 94, the lower end of the third reinforcement 50 and the lower end of the fourth reinforcement 60 are respectively connected to the lower wall of the cabin longitudinal beam 94, the third reinforcement 50 and the fourth reinforcement 60 can be used to strengthen the cabin longitudinal beam 94, the material thickness of the cabin longitudinal beam 94 can be designed to be thinner, thereby achieving a lightweight design and reducing production costs.

[0076] Furthermore, at least one of the upper ends of the third reinforcement 50 and the upper ends of the fourth reinforcement 60 are connected in sequence to the upper wall of the cabin longitudinal beam 94 and the lower end of the wheel hub reinforcement 40, and a force transmission path inside the cabin longitudinal beam 94 can be formed through the third reinforcement 50 and the fourth reinforcement 60, so that the force from the engine and the road surface is transmitted to the wheel hub reinforcement 40 in sequence through at least one of the third reinforcement 50 and the fourth reinforcement 60, thereby optimizing the force transmission path and improving the NVH performance and durability performance of the entire vehicle.

[0077] In this embodiment, the front structure of the vehicle body also includes a front subframe reinforcement plate 70, the upper surface of the front subframe reinforcement plate 70 is connected to the lower wall of the cabin longitudinal beam 94, and the lower surface of the front subframe reinforcement plate 70 is connected to the front subframe; at least one of the lower end of the third reinforcement 50 and the lower end of the fourth reinforcement 60 is connected to the lower wall of the cabin longitudinal beam 94 and the front subframe reinforcement plate 70 in sequence.

[0078] The front subframe reinforcement plate 70 is connected between the cabin longitudinal beam 94 and the front subframe, which can effectively increase the connection strength between the cabin longitudinal beam 94 and the front subframe; at the same time, the front subframe reinforcement plate 70 can achieve the effect of dispersing the force from the front subframe. By connecting at least one of the lower ends of the third reinforcement 50 and the fourth reinforcement 60 with the lower wall of the cabin longitudinal beam 94 and the front subframe reinforcement plate 70 in sequence, at least one of the lower ends of the third reinforcement 50 and the fourth reinforcement 60 is connected to the front subframe reinforcement plate 70, and the force from the front subframe reinforcement plate 70 can be effectively transmitted to at least one of the third reinforcement 50 and the fourth reinforcement 60, and then transmitted upward by at least one of the third reinforcement 50 and the fourth reinforcement 60, thereby optimizing the force transmission path.

[0079] In this embodiment, the front structure of the vehicle body also includes a subframe mounting threaded tube 101; the cabin longitudinal beam 94 is connected to the front subframe through the subframe mounting threaded tube 101, and part of the subframe mounting threaded tube 101 extends into the longitudinal beam cavity; at least one of the lower ends of the third reinforcement 50 and the fourth reinforcement 60 is also connected to the part of the subframe mounting threaded tube 101 extending into the longitudinal beam cavity.

[0080] The subframe mounting threaded tube 101 is a component that connects the cabin longitudinal beam 94 and the front subframe. At least one of the lower ends of the third reinforcement 50 and the fourth reinforcement 60 is connected to the portion of the subframe mounting threaded tube 101 that extends into the longitudinal beam cavity, and the force transmission path is more direct and effective.

[0081] In this embodiment, the front structure of the vehicle body also includes a fifth reinforcement 80, a first bolt 102 and a second bolt 103; in the Y direction of the vehicle body, the first end of the fifth reinforcement 80 is close to the outside of the vehicle body relative to the second end of the fifth reinforcement 80; the first end of the fifth reinforcement 80 is connected to the upper end surface of the front wheel bulge 92 by the first bolt 102, and the second end of the fifth reinforcement 80 is connected to the front side groove wall 11 of the water guide groove assembly by the second bolt 103.

[0082] By setting the fifth reinforcement 80, the connection strength between the water channel assembly 10 and the front wheel bulge 92 can be increased, the structural stability of the water channel assembly 10 can be increased, and the NVH performance of the whole vehicle can be improved. Moreover, the first end of the fifth reinforcement 80 is connected to the upper end face of the front wheel bulge 92, which can also increase the local structural strength of the front wheel bulge 92 and improve the NVH performance of the attachment point installation position of the shock absorber mounting seat 93. The first end of the fifth reinforcement 80 is connected to the upper end face of the front wheel bulge 92 using the first bolt 102, and the second end of the fifth reinforcement 80 is connected to the front side groove wall 11 of the water channel assembly using the second bolt 103, which has the advantage of simple and convenient installation.

[0083] Furthermore, the first end of the fifth reinforcement 80 is connected to the upper end surface of the front wheel bulge 92 by a first bolt 102, and the second end of the fifth reinforcement 80 is connected to the front side groove wall 11 of the water channel assembly by a second bolt 103, which can solve the assembly problem of the welding method. For example, when the groove depth of the water channel assembly 10 is large, the fifth reinforcement 80 is prone to cracking when using the welding method. That is, the fifth reinforcement 80 is connected to the front wheel bulge 92 by the first bolt 102, and the fifth reinforcement 80 is connected to the water channel assembly 10 by the second bolt 103, which can solve the overlap problem of the front wheel bulge 92 and the water channel assembly 10, and improve the NVH performance of the corresponding attachment point of the local installation position of the front wheel bulge 92.

[0084] In this embodiment, refer to Figures 1 to 14 As shown, the front structure of the vehicle body includes a water channel assembly 10, a first reinforcement 20, a second reinforcement 30, a first hub reinforcement 41, a second hub reinforcement 42, a third reinforcement 50, a fourth reinforcement 60, a front subframe reinforcement plate 70, a fifth reinforcement 80, an A-pillar 91, a front wheel bulge 92, a shock absorber mounting seat 93, a cabin longitudinal beam 94, and a front subframe. Of course, the front structure of the vehicle body may also include other components such as a windshield, which is not specifically limited in the present embodiment of the application.

[0085] Reference Figure 3 and Figure 4 As shown, the first end of the fifth reinforcement 80 is connected to the upper end surface of the front wheel bulge 92 by a first bolt 102, and the second end of the fifth reinforcement 80 is connected to the front side groove wall 11 of the water channel assembly by a second bolt 103. The fifth reinforcement 80 can increase the structural strength of the connection between the front wheel bulge 92 and the water channel assembly 10. Figure 7As shown, the first bolt 102 passes through the first mounting hole 81 of the fifth reinforcement and is connected to the upper end face of the front wheel bulge 92, and the second bolt 103 passes through the second mounting hole 82 of the fifth reinforcement and is connected to the front side groove wall 11 of the water guide groove assembly. When using the first bolt 102 and the second bolt 103 for connection, nuts, sealing rings and the like can also be used for auxiliary connections, which can be set according to specific usage requirements.

[0086] Reference Figure 3 and Figure 4 As shown, the lower end of the first hub reinforcement 41 is connected to the upper end of the second hub reinforcement 42, and is snap-fitted to the side wall of the front wheel bulge 92. The upper end of the first hub reinforcement 41 extends to the upper end of the side wall of the front wheel bulge 92, and the lower end of the second hub reinforcement 42 extends to the lower end of the side wall of the front wheel bulge 92, and the lower end of the second hub reinforcement 42 is connected to the cabin longitudinal beam 94. The first hub reinforcement 41 is connected to the second hub reinforcement 42 to achieve a reinforced connection between the front wheel bulge 92 and the cabin longitudinal beam 94. For further reference Figure 8 and Fig. 9 As shown, the first connection part 411 of the first hub reinforcement and the fourth connection part 414 of the first hub reinforcement are connected to the upper end of the first hub reinforcement 41 by welding points, the third connection part 413 of the first hub reinforcement and the first connection part 421 of the second hub reinforcement are welded, the sixth connection part 416 of the first hub reinforcement and the second connection part 422 of the second hub reinforcement are welded, the second connection part 412 of the first hub reinforcement and the fifth connection part 415 of the first hub reinforcement are welded to the side wall of the front wheel bulge 92, and the specific welding method is, for example, to arrange welding points at a preset distance (preset distance, for example, 40 mm) in the Z direction of the vehicle body. The third connection part 423 of the second hub reinforcement, the fourth connection part 424 of the second hub reinforcement, and the fifth connection part 425 of the second hub reinforcement are used for welding connection of the upper wall of the cabin longitudinal beam 94.

[0087] Reference Figure 5 and Figure 6 As shown, the third reinforcement 50 and the fourth reinforcement 60 are respectively arranged in the longitudinal beam cavity, the upper end of the third reinforcement 50 and the upper end of the fourth reinforcement 60 are respectively connected to the upper wall of the cabin longitudinal beam 94, and the upper end of the third reinforcement 50 and the upper end of the fourth reinforcement 60 are respectively connected to the upper wall of the cabin longitudinal beam 94 and the lower end of the hub reinforcement 40 in sequence, and the lower end of the third reinforcement 50 and the lower end of the fourth reinforcement 60 are respectively connected to the lower wall of the cabin longitudinal beam 94. Further reference is made to Fig.10 and Fig.11As shown, the first connection portion 51 of the third reinforcement and the first connection portion 61 of the fourth reinforcement are connected to the second hub reinforcement 42 by welding (forming three-layer welding). The second connection portion 52 of the third reinforcement and the second connection portion 62 of the fourth reinforcement are connected to the side wall of the cabin longitudinal beam 94 by welding to increase the connection between the third reinforcement 50 and the fourth reinforcement 60 and the cabin longitudinal beam 94 to improve stability. The third connection portion 53 of the third reinforcement and the fourth connection portion 64 of the fourth reinforcement are connected to the front subframe reinforcement plate 70 by welding (forming three-layer welding), and the third connection portion 63 of the fourth reinforcement is connected to the subframe mounting threaded pipe 101 by welding.

[0088] Reference Figures 1 to 3 As shown, the first reinforcement 20 is arranged in the water channel assembly 10, the first end of the first reinforcement 20 is connected to the front channel wall 11 of the water channel assembly, and the second end of the first reinforcement 20 is connected to the rear channel wall 12 of the water channel assembly; the first end of the second reinforcement 30 and the second end of the first reinforcement 20 are arranged opposite to each other, the first end of the second reinforcement 30, the rear channel wall 12 of the water channel assembly, and the second end of the first reinforcement 20 are connected in sequence; the second end of the second reinforcement 30 is connected to the A-pillar 91. For further reference Fig.12 and Fig.13 As shown, the first reinforcement member first mounting portion 21 and the first reinforcement member second mounting portion 22 are connected to the front channel wall 11 of the water channel assembly by welding, and the first reinforcement member third mounting portion 23 and the first reinforcement member fourth mounting portion 24 are connected to the rear channel wall 12 of the water channel assembly by welding. The second reinforcement member 30 is connected to the rear channel wall 12 of the water channel assembly through the second reinforcement member first mounting hole 31 and fasteners such as bolts, and the connection position is at the first reinforcement member third mounting portion 23 and the first reinforcement member fourth mounting portion 24, so as to realize the fixed connection between the second reinforcement member 30 and the first reinforcement member 20; the second reinforcement member 30 is connected to the A-pillar 91 through the second reinforcement member second mounting hole 32 and fasteners such as bolts.

[0089] In the front structure of the vehicle body, the force from the engine and the road is transmitted in sequence through the third reinforcement 50, the fourth reinforcement 60, the hub reinforcement 40, the first reinforcement 20, and the second reinforcement 30, and finally transmitted to the A-pillar 91. That is, the force from the engine and the road can be effectively transmitted to the rear of the vehicle body, optimizing the force transmission path; at the same time, the cabin area and the front subframe are integrated into a complete closed-loop structure, the lateral and longitudinal stiffness of the entire front area of ​​the vehicle body is strengthened, and a closed force transmission path is formed, thereby effectively improving the NVH performance and durability of the entire vehicle.

[0090] In addition, the front structure of the vehicle body of this embodiment is connected by the combination of the first reinforcement 20, the second reinforcement 30, the hub reinforcement 40, the third reinforcement 50, the fourth reinforcement 60, and the fifth reinforcement 80, so that the entire front structure of the vehicle body forms a closed ring structure, which is more conducive to strengthening the rigidity of the vehicle body, thereby improving the NVH performance and durability of the vehicle body; the use of this closed ring structure can increase the torsional rigidity of the vehicle body under the same weight, for example, increase 5KN.m / rad; improve the NVH performance of the whole vehicle, for example, improve 1.8dBA; improve the general fatigue damage of the vehicle body on the road, for example, improve 0.5. Since the force transmission path is optimized, the thickening design of the front wheel bulge 92 caused by performance requirements can be effectively avoided, that is, the weight of the sheet metal is reduced under the condition of meeting the same performance, for example, by 1.2kg, thereby achieving lightweight of the vehicle body and facilitating weight reduction of the vehicle body.

[0091] The front body structure of this embodiment solves the problems of weak connection between the front wheel bulge 92 and the water gutter assembly 10, the cabin longitudinal beam 94, the front subframe, and the A-pillar 91, and unclear force transmission path; and solves the problems of weak rigidity of the front body, which leads to excessive local deformation when subjected to road excitation, and strong internal force transmitted to the body due to poor vibration isolation capability, thereby causing local cracks in the body and excessive noise inside the car, affecting the durability and NVH performance of the car.

[0092] A car of this embodiment includes a body, and the body is provided with the above-mentioned front body structure.

[0093] In this embodiment, the first reinforcement 20, the second reinforcement 30, the hub reinforcement 40, the third reinforcement 50, the fourth reinforcement 60, and the fifth reinforcement 80 are combined and connected to form a closed ring structure for the entire front structure of the vehicle body, which is more conducive to strengthening the rigidity of the vehicle body, thereby improving the NVH performance and durability of the vehicle body; the use of this closed ring structure can increase the torsional rigidity of the vehicle body under the same weight, improve the NVH performance of the whole vehicle, and improve the general fatigue damage of the vehicle body on the road. Since the force transmission path is optimized, the thickening design of the front wheel bulge 92 caused by performance requirements can be effectively avoided, that is, the weight of the sheet metal is reduced under the condition of meeting the same performance, thereby achieving lightweight of the vehicle body and facilitating weight reduction of the vehicle body. Therefore, the automobile has the advantages of high torsional rigidity, good NVH performance, and lightweight.

[0094] The above embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Any equivalent substitution or modification made by a person skilled in the art based on the present invention is within the protection scope of the present invention.

Claims

1. A vehicle front structure, comprising a water channel assembly (10) and an A-pillar (91), characterized in that: The vehicle body front structure also includes a first reinforcement member (20) and a second reinforcement member (30); The first reinforcement member (20) is arranged in the water channel assembly (10), the first end of the first reinforcement member (20) is connected to the front channel wall (11) of the water channel assembly, and the second end of the first reinforcement member (20) is connected to the rear channel wall (12) of the water channel assembly; The first end of the second reinforcement (30) and the second end of the first reinforcement (20) are arranged opposite to each other, and the first end of the second reinforcement (30), the rear side groove wall (12) of the water guide groove assembly, and the second end of the first reinforcement (20) are connected in sequence; the second end of the second reinforcement (30) is connected to the A-pillar (91).

2. The vehicle body front structure according to claim 1, characterized in that: The vehicle body front structure further comprises a front wheel bulge (92), at least an upper end surface of the front wheel bulge (92) being connected to the water channel assembly (10); The connection between the first end of the first reinforcement (20) and the front channel wall (11) of the water channel assembly is close to the connection between the upper end surface of the front wheel bulge (92) and the water channel assembly (10).

3. The vehicle body front structure according to claim 2, characterized in that: The vehicle body front structure also includes a shock absorber mounting seat (93), and the shock absorber mounting seat (93) is connected to the upper end surface of the front wheel bulge (92); The connection between the first end of the first reinforcement member (20) and the front groove wall (11) of the water guide groove assembly is close to the shock absorber mounting seat (93).

4. The vehicle body front structure according to claim 1, characterized in that: In the Y direction of the vehicle body, the first reinforcement member (20) is arranged close to the end of the water channel assembly (10).

5. The vehicle body front structure according to claim 2, characterized in that: The vehicle body front structure also includes a cabin longitudinal beam (94) and a wheel hub reinforcement (40); The upper end of the cabin longitudinal beam (94) is connected to the lower end of the front wheel bulge (92); The wheel hub reinforcement (40) is connected to the side wall of the front wheel bulge (92), the upper end of the wheel hub reinforcement (40) extends to the upper end of the side wall of the front wheel bulge (92), the lower end of the wheel hub reinforcement (40) extends to the lower end of the side wall of the front wheel bulge (92), and the lower end of the wheel hub reinforcement (40) is connected to the cabin longitudinal beam (94).

6. The vehicle body front structure according to claim 5, characterized in that: The vehicle body front structure also includes a front subframe, a third reinforcement member (50) and a fourth reinforcement member (60); The front sub-frame is connected to the lower end of the cabin longitudinal beam (94), and the cabin longitudinal beam (94) is provided with a longitudinal beam cavity; The third reinforcement (50) and the fourth reinforcement (60) are respectively arranged in the longitudinal beam cavity, and the upper ends of the third reinforcement (50) and the fourth reinforcement (60) are respectively connected to the upper wall of the cabin longitudinal beam (94), and at least one of the upper ends of the third reinforcement (50) and the fourth reinforcement (60) is connected to the upper wall of the cabin longitudinal beam (94) and the lower end of the hub reinforcement (40) in sequence, and the lower ends of the third reinforcement (50) and the fourth reinforcement (60) are respectively connected to the lower wall of the cabin longitudinal beam (94).

7. The vehicle body front structure according to claim 6, characterized in that: The vehicle body front structure also includes a front subframe reinforcement plate (70), the upper surface of the front subframe reinforcement plate (70) is connected to the lower wall of the cabin longitudinal beam (94), and the lower surface of the front subframe reinforcement plate (70) is connected to the front subframe; At least one of the lower ends of the third reinforcement (50) and the fourth reinforcement (60) is connected to the lower wall of the cabin longitudinal beam (94) and the front subframe reinforcement plate (70) in sequence.

8. The vehicle body front structure according to claim 6, characterized in that: The vehicle body front structure also includes a sub-frame mounting threaded tube (101); The cabin longitudinal beam (94) is connected to the front sub-frame via the sub-frame mounting threaded tube (101), and a portion of the sub-frame mounting threaded tube (101) extends into the longitudinal beam cavity; At least one of the lower ends of the third reinforcement (50) and the fourth reinforcement (60) is also connected to a portion of the sub-frame mounting threaded tube (101) extending into the longitudinal beam cavity.

9. The vehicle body front structure according to claim 2, characterized in that: The vehicle body front structure further comprises a fifth reinforcement member (80), a first bolt (102) and a second bolt (103); in the Y direction of the vehicle body, the first end of the fifth reinforcement member (80) is closer to the outer side of the vehicle body than the second end of the fifth reinforcement member (80); The first end of the fifth reinforcement (80) is connected to the upper end surface of the front wheel bulge (92) via the first bolt (102), and the second end of the fifth reinforcement (80) is connected to the front side channel wall (11) of the water guide channel assembly via the second bolt (103).

10. An automobile, comprising a vehicle body, characterized in that: The vehicle body is provided with a vehicle body front structure as claimed in any one of claims 1 to 9.

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