Automobile front longitudinal beam reinforcing structure

Abstract

The utility model belongs to an automobile front longitudinal beam reinforcing structure in the technical field of automobile parts. The front longitudinal beam inner plate (1) is connected with the front longitudinal beam outer plate (2), the first front longitudinal beam reinforcing plate (3) is arranged on the left side folding portion of the upper portion of the inner surface of the front longitudinal beam inner plate (1), the second front longitudinal beam reinforcing plate (4) is arranged on the right side folding portion of the upper portion of the inner surface of the front longitudinal beam inner plate (1), and the third front longitudinal beam reinforcing plate (5) is arranged between the left side of the lower portion of the inner surface of the front longitudinal beam inner plate (1) and the front longitudinal beam outer plate (2). And a fourth front longitudinal beam reinforcing plate (6) is arranged between the right side of the lower part of the inner surface of the front longitudinal beam inner plate (1) and the front longitudinal beam outer plate (2). The automobile front longitudinal beam reinforcing structure is simple in structure and easy to form, the rigidity and the strength of a front longitudinal beam are improved, and the crashworthiness of an automobile in the frontal collision process is improved; the thickness, the material and the splicing welding position of the reinforcer are simply adjusted, the optimal rigidity and strength performance can be found through a simulation means, and the process is simplified.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile parts, more particularly, relate to a kind of automobile front longitudinal beam reinforcing structure. BACKGROUND

[0002] In recent years, customers' requirements for vehicle quality are continuously improved, and vehicles are no longer simply a demand for walking. Vehicle stability, comfort and safety performance are attracting more and more attention, and the requirements are increasing day by day. Among them, safety performance is becoming more and more a market choice, so car companies are constantly committed to the development of safety performance when developing new models. Five-star models are emerging in the market. At the same time, lightweighting is a voice of major car companies. As an important vehicle body load-bearing structure, the front longitudinal beam plays a key role in the stiffness of the vehicle, the NVH performance of the vehicle, the frontal crash performance (including 100% frontal crash, 40% offset crash and 25% small offset crash). It is also an important force transmission path and energy absorption path in frontal crash, so the front longitudinal beam plays an important role in vehicle development. Optimization and strengthening of the front longitudinal beam are of great significance to improving the overall performance of the vehicle. Defects of the prior art:

[0003] The main form of the existing reinforcing structure is to add a box member inside the front longitudinal beam inner plate and the front longitudinal beam outer plate cavity, or to add a patch-type reinforcing member. This reinforcing method has high process requirements, is not easy to form, and has poor universality. When optimizing the stiffness of the front longitudinal beam through CAE simulation optimization means, the repeated and replaced iteration of each reinforcing member scheme will also cause a large amount of work.

[0004] In the prior art, a technology with the name "automobile front longitudinal beam reinforcing structure" and the publication (announcement) number "CN102963426A" is disclosed. The technology discloses an automobile front longitudinal beam reinforcing structure. The reinforcing structure is a V-shaped opening box-shaped structure, and the reinforcing structure is installed at the lap joint part of the front longitudinal beam inner plate (1) and the front apron middle beam (2). The reinforcing structure includes four surfaces, wherein the left-right symmetrical first side surface (3) and the second side surface (4) are rectangular, the up-down symmetrical first bottom surface (5) and the second bottom surface (6) are each an integral sheet metal member, and the shape is triangular. The first side surface (3) is connected with the front longitudinal beam inner plate (1), and the second side surface (4) is connected with the front apron middle beam (2). The automobile front longitudinal beam reinforcing structure increases a V-shaped reinforcing box at the lap joint part of the front longitudinal beam inner plate and the front apron middle beam. When the longitudinal beam root cannot provide sufficient lateral support, it provides certain support, enhances the stiffness of the engine suspension mounting point, and reduces vibration and noise.

[0005] However, the technology does not involve the technical problems and technical solutions of the present application. UTILITY MODEL CONTENTS

[0006] The utility model wants to solve the technical problem of: in view be short of prior art, provide a simple structure, easy to form, promote front longitudinal beam rigidity, improve the crashworthiness in the process of vehicle frontal crash, simple adjustment reinforcing member's thickness, material and splicing welding position, through simulation means can seek optimal rigidity and strength performance, simplify the automobile front longitudinal beam reinforcing structure of technology.

[0007] To solve the above technical problems, the technical scheme adopted by the utility model is:

[0008] The utility model discloses a kind of automobile front longitudinal beam reinforcing structure, including front longitudinal beam inner plate and front longitudinal beam outer plate, front longitudinal beam inner plate is n-shaped structure, front longitudinal beam inner plate connects front longitudinal beam outer plate, first front longitudinal beam reinforcing plate is set in left side flanging portion on upper portion of inner surface of front longitudinal beam inner plate, second front longitudinal beam reinforcing plate is set in right side flanging portion on upper portion of inner surface of front longitudinal beam inner plate, third front longitudinal beam reinforcing plate is set between left side of lower portion of inner surface of front longitudinal beam inner plate and front longitudinal beam outer plate, fourth front longitudinal beam reinforcing plate is set between right side of lower portion of inner surface of front longitudinal beam inner plate and front longitudinal beam outer plate.

[0009] The automobile front longitudinal beam reinforcing structure includes left front longitudinal beam reinforcing structure and right front longitudinal beam reinforcing structure, and the left front longitudinal beam reinforcing structure and the right front longitudinal beam reinforcing structure are arranged in a symmetrical structure; the first front longitudinal beam reinforcing plate, the second front longitudinal beam reinforcing plate, the third front longitudinal beam reinforcing plate and the fourth front longitudinal beam reinforcing plate are all arranged in an L-shaped structure.

[0010] The first front longitudinal beam reinforcing plate includes a first front longitudinal beam reinforcing plate first component, a first front longitudinal beam reinforcing plate second component and a first front longitudinal beam reinforcing plate third component.

[0011] The second front longitudinal beam reinforcing plate includes a second front longitudinal beam reinforcing plate first component, a second front longitudinal beam reinforcing plate second component and a second front longitudinal beam reinforcing plate third component.

[0012] The third front longitudinal beam reinforcing plate includes a third front longitudinal beam reinforcing plate first component, a third front longitudinal beam reinforcing plate second component and a third front longitudinal beam reinforcing plate third component.

[0013] The fourth front longitudinal beam reinforcing plate includes a fourth front longitudinal beam reinforcing plate first component, a fourth front longitudinal beam reinforcing plate second component and a fourth front longitudinal beam reinforcing plate third component.

[0014] The first front longitudinal beam reinforcing plate first component, the first front longitudinal beam reinforcing plate second component and the first front longitudinal beam reinforcing plate third component are fixedly connected to the upper inner surface and the left inner surface of the front longitudinal beam inner plate through a plurality of welding points.

[0015] The first assembly, the second assembly and the third assembly of the second front longitudinal beam reinforcing plate are fixedly connected with the upper inner surface and the right inner surface of the front longitudinal beam inner plate through a plurality of welding points.

[0016] The first assembly, the second assembly and the third assembly of the third front longitudinal beam reinforcing plate are fixedly connected with the lower left inner surface of the front longitudinal beam inner plate and the inner surface of the front longitudinal beam outer plate through a plurality of welding points.

[0017] The first assembly, the second assembly and the third assembly of the fourth front longitudinal beam reinforcing plate are fixedly connected with the lower right inner surface of the front longitudinal beam inner plate and the inner surface of the front longitudinal beam outer plate through a plurality of welding points.

[0018] The technical scheme of the utility model, working principle and beneficial effect are as follows:

[0019] The utility model discloses an automobile front longitudinal beam reinforcing structure, and the front longitudinal beam inner plate and the front longitudinal beam outer plate are made respectively, the front longitudinal beam inner plate structure is n-shaped structure, the front longitudinal beam outer plate is the plate piece structure, and the front longitudinal beam inner plate is welded and is connected the front longitudinal beam outer plate, and in the process of welding and connecting the front longitudinal beam outer plate of the front longitudinal beam inner plate, reinforcing plates are arranged between different parts of the two respectively, specifically, the first front longitudinal beam reinforcing plate is arranged at the upper left flanging part of the inner surface of the front longitudinal beam inner plate to strengthen the local strength of the front longitudinal beam inner plate, the second front longitudinal beam reinforcing plate is arranged at the upper right flanging part of the inner surface of the front longitudinal beam inner plate to strengthen the local strength of the front longitudinal beam inner plate, the third front longitudinal beam reinforcing plate is arranged between the lower left inner surface of the front longitudinal beam inner plate and the front longitudinal beam outer plate to strengthen the local strength of the combined part of the front longitudinal beam inner plate and the front longitudinal beam outer plate, and the fourth front longitudinal beam reinforcing plate is arranged between the lower right inner surface of the front longitudinal beam inner plate and the front longitudinal beam outer plate to strengthen the local strength of the combined part of the front longitudinal beam inner plate and the front longitudinal beam outer plate. BRIEF DESCRIPTION OF DRAWINGS

[0020] The content expressed by each drawing of the specification and the marks in the drawing are briefly explained as follows:

[0021] Figure 1 It is the structure schematic view of the automobile front longitudinal beam reinforcing structure of the utility model;

[0022] Figure 2 It is the structure schematic view of the automobile front longitudinal beam reinforcing structure of the utility model;

[0023] Figure 3 It is the explosion structure schematic view of the reinforcing piece of the automobile front longitudinal beam reinforcing structure of the utility model;

[0024] Figure 4 This is a schematic diagram of the distribution structure of the welding points of the automobile front longitudinal beam reinforcement structure according to the present invention;

[0025] Figure 5 This is a schematic diagram of the distribution structure of the splicing positions of the automobile front longitudinal beam reinforcement structure according to the present invention;

[0026] The marks in the accompanying drawings are: 1, front longitudinal beam inner plate; 2, front longitudinal beam outer plate; 3, first front longitudinal beam reinforcement plate; 4, second front longitudinal beam reinforcement plate; 5, third front longitudinal beam reinforcement plate; 6, fourth front longitudinal beam reinforcement plate. DETAILED DESCRIPTION

[0027] The following is a detailed description of the embodiments of the present invention, such as the shapes, structures, positions and connections of the various components involved, the functions and working principles of the various components, etc., by referring to the accompanying drawings.

[0028] As attached Figure 1 -Attached Figure 5The utility model discloses a kind of automobile front longitudinal beam reinforcing structures, including front longitudinal beam inner plate 1 and front longitudinal beam outer plate 2, front longitudinal beam inner plate 1 is n-shaped structure, front longitudinal beam inner plate 1 connects front longitudinal beam outer plate 2, first front longitudinal beam reinforcing plate 3 is set in left side flanging portion on the upper portion of inner surface of front longitudinal beam inner plate 1, second front longitudinal beam reinforcing plate 4 is set in right side flanging portion on the upper portion of inner surface of front longitudinal beam inner plate 1, third front longitudinal beam reinforcing plate 5 is set between left side of lower portion of inner surface of front longitudinal beam inner plate 1 and front longitudinal beam outer plate 2, fourth front longitudinal beam reinforcing plate 6 is set between right side of lower portion of inner surface of front longitudinal beam inner plate 1 and front longitudinal beam outer plate 2.The above structure, for the deficiency in the prior art, improved technical solution is proposed.Structure is set, respectively make front longitudinal beam inner plate 1 and front longitudinal beam outer plate 2, front longitudinal beam inner plate 1 structure is n-shaped structure, front longitudinal beam outer plate 2 is plate piece structure, front longitudinal beam inner plate 1 is welded and connects front longitudinal beam outer plate 2, and in the process of welding and connecting front longitudinal beam outer plate 2 of front longitudinal beam inner plate 1, reinforcing plate is respectively set between different parts, specifically, first front longitudinal beam reinforcing plate 3 is set in left side flanging portion on the upper portion of inner surface of front longitudinal beam inner plate 1, to strengthen the local strength of front longitudinal beam inner plate 1, second front longitudinal beam reinforcing plate 4 is set in right side flanging portion on the upper portion of inner surface of front longitudinal beam inner plate 1, to strengthen the local strength of front longitudinal beam inner plate 1, third front longitudinal beam reinforcing plate 5 is set between left side of lower portion of inner surface of front longitudinal beam inner plate 1 and front longitudinal beam outer plate 2, to strengthen the local strength of the combined portion of front longitudinal beam inner plate 1 and front longitudinal beam outer plate 2, fourth front longitudinal beam reinforcing plate 6 is set between right side of lower portion of inner surface of front longitudinal beam inner plate 1 and front longitudinal beam outer plate 2, to strengthen the local strength of the combined portion of front longitudinal beam inner plate 1 and front longitudinal beam outer plate 2.The above structure can adjust the thickness, material and splicing welding position of reinforcing plate (reinforcing piece) according to actual needs, to realize the optimal rigidity and strength performance index of front longitudinal beam.The automobile front longitudinal beam reinforcing structure described in the utility model has simple structure, is easy to form, improves the rigidity and strength of front longitudinal beam, improves the crashworthiness in the process of vehicle frontal collision, and the thickness, material and splicing welding position of reinforcing piece are simply adjusted, so that the optimal rigidity and strength performance can be found through simulation means, and the process is simplified.

[0029] The automobile front longitudinal beam reinforcing structure includes left front longitudinal beam reinforcing structure and right front longitudinal beam reinforcing structure, and the left front longitudinal beam reinforcing structure and the right front longitudinal beam reinforcing structure are arranged in a symmetrical structure; the first front longitudinal beam reinforcing plate 3, the second front longitudinal beam reinforcing plate 4, the third front longitudinal beam reinforcing plate 5, and the fourth front longitudinal beam reinforcing plate 6 are all arranged in an L-shaped structure.The above structure is arranged at the left front longitudinal beam position, and the right front longitudinal beam reinforcing structure is arranged at the right front longitudinal beam position, so as to realize the separate reinforcement of the left front longitudinal beam and the right front longitudinal beam.The reinforcing plate structure is similar to an angle steel structure.

[0030] The first front longitudinal beam reinforcement plate 3 comprises a first front longitudinal beam reinforcement plate first component 301, a first front longitudinal beam reinforcement plate second component 302, and a first front longitudinal beam reinforcement plate third component 303. The first front longitudinal beam reinforcement plate 3 is formed by connecting multiple components, and the connecting positions of adjacent components are fixedly connected by tailor-welding. The first front longitudinal beam reinforcement plate first component 301, the first front longitudinal beam reinforcement plate second component 302, and the first front longitudinal beam reinforcement plate third component 303 of the first front longitudinal beam reinforcement plate 3 are respectively connected to the front longitudinal beam inner plate 1.

[0031] The second front longitudinal beam reinforcement plate 4 comprises a second front longitudinal beam reinforcement plate first component 401, a second front longitudinal beam reinforcement plate second component 402, and a second front longitudinal beam reinforcement plate third component 403. The second front longitudinal beam reinforcement plate 4 is formed by connecting multiple components, and the connecting positions of adjacent components are fixedly connected by tailor-welding. The second front longitudinal beam reinforcement plate first component 401, the second front longitudinal beam reinforcement plate second component 402, and the second front longitudinal beam reinforcement plate third component 403 of the second front longitudinal beam reinforcement plate 4 are respectively connected to the front longitudinal beam inner plate 1.

[0032] The third front longitudinal beam reinforcement plate 5 comprises a third front longitudinal beam reinforcement plate first component 501, a third front longitudinal beam reinforcement plate second component 502, and a third front longitudinal beam reinforcement plate third component 503. The third front longitudinal beam reinforcement plate 5 is formed by connecting multiple components, and the connecting positions of adjacent components are fixedly connected by tailor-welding. The third front longitudinal beam reinforcement plate first component 501, the third front longitudinal beam reinforcement plate second component 502, and the third front longitudinal beam reinforcement plate third component 503 of the third front longitudinal beam reinforcement plate 5 are respectively connected to the connecting positions of the front longitudinal beam inner plate 1 and the front longitudinal beam outer plate 2 to strengthen the strength of the front longitudinal beam inner plate 1 and the front longitudinal beam outer plate 2.

[0033] The fourth front longitudinal beam reinforcement plate 6 comprises a fourth front longitudinal beam reinforcement plate first component 601, a fourth front longitudinal beam reinforcement plate second component 602, and a fourth front longitudinal beam reinforcement plate third component 603. The fourth front longitudinal beam reinforcement plate 6 is formed by connecting multiple components, and the connecting positions of adjacent components are fixedly connected by tailor-welding. The fourth front longitudinal beam reinforcement plate first component 601, the fourth front longitudinal beam reinforcement plate second component 602, and the fourth front longitudinal beam reinforcement plate third component 603 of the fourth front longitudinal beam reinforcement plate 6 are respectively connected to the connecting positions of the front longitudinal beam inner plate 1 and the front longitudinal beam outer plate 2 to strengthen the strength of the front longitudinal beam inner plate 1 and the front longitudinal beam outer plate 2.

[0034] The first front longitudinal beam reinforcement plate first assembly 301, the first front longitudinal beam reinforcement plate second assembly 302 and the first front longitudinal beam reinforcement plate third assembly 303 are fixedly connected to the upper inner surface and the left inner surface of the front longitudinal beam inner plate 1 through a plurality of welding points. The first front longitudinal beam reinforcement plate first assembly 301, the first front longitudinal beam reinforcement plate second assembly 302 and the first front longitudinal beam reinforcement plate third assembly 303 are reliably connected to the front longitudinal beam inner plate 1 through a plurality of welding points.

[0035] The second front longitudinal beam reinforcement plate first assembly 401, the second front longitudinal beam reinforcement plate second assembly 402 and the second front longitudinal beam reinforcement plate third assembly 403 are fixedly connected to the upper inner surface and the right inner surface of the front longitudinal beam inner plate 1 through a plurality of welding points. The second front longitudinal beam reinforcement plate first assembly 401, the second front longitudinal beam reinforcement plate second assembly 402 and the second front longitudinal beam reinforcement plate third assembly 403 are reliably connected to the front longitudinal beam inner plate 1 through a plurality of welding points.

[0036] The third front longitudinal beam reinforcement plate first assembly 501, the third front longitudinal beam reinforcement plate second assembly 502 and the third front longitudinal beam reinforcement plate third assembly 503 are fixedly connected to the lower left inner surface of the front longitudinal beam inner plate 1 and the inner surface of the front longitudinal beam outer plate 2 through a plurality of welding points. The third front longitudinal beam reinforcement plate first assembly 501, the third front longitudinal beam reinforcement plate second assembly 502 and the third front longitudinal beam reinforcement plate third assembly 503 are reliably connected to the front longitudinal beam inner plate 1 and the front longitudinal beam outer plate 2 through a plurality of welding points. The fourth front longitudinal beam reinforcement plate first assembly 601, the fourth front longitudinal beam reinforcement plate second assembly 602 and the fourth front longitudinal beam reinforcement plate third assembly 603 are fixedly connected to the lower right inner surface of the front longitudinal beam inner plate 1 and the inner surface of the front longitudinal beam outer plate 2 through a plurality of welding points. The fourth front longitudinal beam reinforcement plate first assembly 601, the fourth front longitudinal beam reinforcement plate second assembly 602 and the fourth front longitudinal beam reinforcement plate third assembly 603 are reliably connected to the inner surfaces of the front longitudinal beam inner plate 1 and the front longitudinal beam outer plate 2 through a plurality of welding points.

[0037] The utility model discloses a car front longitudinal beam reinforcing structure, when setting structure, make front longitudinal beam inner plate 1 and front longitudinal beam outer plate 2 respectively, and the front longitudinal beam inner plate 1 structure is n -shaped structure, and the front longitudinal beam outer plate 2 is plate piece structure, and the front longitudinal beam inner plate 1 welding connects the front longitudinal beam outer plate 2, and in the process of welding the front longitudinal beam inner plate 1 and the front longitudinal beam outer plate 2, the reinforcing plate is set respectively in different parts between the two, specifically, the first front longitudinal beam reinforcing plate 3 is set to the left flanging portion on the upper portion of the inner surface of the front longitudinal beam inner plate 1 to strengthen the local strength of the front longitudinal beam inner plate 1, the second front longitudinal beam reinforcing plate 4 is set to the right flanging portion on the upper portion of the inner surface of the front longitudinal beam inner plate 1 to strengthen the local strength of the front longitudinal beam inner plate 1, the third front longitudinal beam reinforcing plate 5 is set between the left side of the lower portion of the inner surface of the front longitudinal beam inner plate 1 and the front longitudinal beam outer plate 2 to strengthen the local strength of the combined portion of the front longitudinal beam inner plate 1 and the front longitudinal beam outer plate 2, and the fourth front longitudinal beam reinforcing plate 6 is set between the right side of the lower portion of the inner surface of the front longitudinal beam inner plate 1 and the front longitudinal beam outer plate 2 to strengthen the local strength of the combined portion of the front longitudinal beam inner plate 1 and the front longitudinal beam outer plate 2. The above structure can adjust the thickness, material and splicing welding position of the reinforcing plate (reinforcing piece) according to actual needs, and optimal rigidity and strength performance indexes of the front longitudinal beam are realized.

[0038] The utility model has been described above in conjunction with the drawings, and obviously, the specific implementation of the utility model is not limited by the above mode, and various improvements are made by using the method concept and technical scheme of the utility model, or the concept and technical scheme of the utility model is directly applied to other occasions without improvement, and all falls within the protection scope of the utility model.

Claims

1. A front longitudinal beam reinforcement structure for an automobile, characterized in that: The invention comprises a front longitudinal beam inner plate (1) and a front longitudinal beam outer plate (2), wherein the front longitudinal beam inner plate (1) is in an N-shaped structure, the front longitudinal beam inner plate (1) is connected to the front longitudinal beam outer plate (2), a first front longitudinal beam reinforcement plate (3) is provided at the left folding portion of the upper inner surface of the front longitudinal beam inner plate (1), a second front longitudinal beam reinforcement plate (4) is provided at the right folding portion of the upper inner surface of the front longitudinal beam inner plate (1), a third front longitudinal beam reinforcement plate (5) is provided between the left lower inner surface of the front longitudinal beam inner plate (1) and the front longitudinal beam outer plate (2), and a fourth front longitudinal beam reinforcement plate (6) is provided between the right lower inner surface of the front longitudinal beam inner plate (1) and the front longitudinal beam outer plate (2).

2. The automobile front longitudinal beam reinforcement structure according to claim 1, characterized in that: The automobile front longitudinal beam reinforcement structure comprises a left front longitudinal beam reinforcement structure and a right front longitudinal beam reinforcement structure, wherein the left front longitudinal beam reinforcement structure and the right front longitudinal beam reinforcement structure are arranged as symmetrical structures; the first front longitudinal beam reinforcement plate (3), the second front longitudinal beam reinforcement plate (4), the third front longitudinal beam reinforcement plate (5), and the fourth front longitudinal beam reinforcement plate (6) are all arranged as L-shaped structures.

3. The automobile front longitudinal beam reinforcement structure according to claim 1 or 2, characterized in that: The first front longitudinal beam reinforcement plate (3) comprises a first front longitudinal beam reinforcement plate first component (301), a first front longitudinal beam reinforcement plate second component (302), and a first front longitudinal beam reinforcement plate third component (303).

4. The automobile front longitudinal beam reinforcement structure according to claim 1 or 2, characterized in that: The second front longitudinal beam reinforcement plate (4) comprises a second front longitudinal beam reinforcement plate first component (401), a second front longitudinal beam reinforcement plate second component (402), and a second front longitudinal beam reinforcement plate third component (403).

5. The automobile front longitudinal beam reinforcement structure according to claim 1 or 2, characterized in that: The third front longitudinal beam reinforcement plate (5) comprises a third front longitudinal beam reinforcement plate first component (501), a third front longitudinal beam reinforcement plate second component (502), and a third front longitudinal beam reinforcement plate third component (503).

6. The automobile front longitudinal beam reinforcement structure according to claim 1 or 2, characterized in that: The fourth front longitudinal beam reinforcement plate (6) comprises a fourth front longitudinal beam reinforcement plate first component (601), a fourth front longitudinal beam reinforcement plate second component (602), and a fourth front longitudinal beam reinforcement plate third component (603).

7. The automobile front longitudinal beam reinforcement structure according to claim 3, characterized in that: The first front longitudinal beam reinforcement plate first component (301), the first front longitudinal beam reinforcement plate second component (302), and the first front longitudinal beam reinforcement plate third component (303) are respectively fixedly connected to the upper inner surface and the left inner surface of the front longitudinal beam inner plate (1) through multiple welding points.

8. The automobile front longitudinal beam reinforcement structure according to claim 4, characterized in that: The second front longitudinal beam reinforcement plate first component (401), the second front longitudinal beam reinforcement plate second component (402), and the second front longitudinal beam reinforcement plate third component (403) are respectively fixedly connected to the upper inner surface and the right inner surface of the front longitudinal beam inner plate (1) through multiple welding points.

9. The automobile front longitudinal beam reinforcement structure according to claim 5, characterized in that: The third front longitudinal beam reinforcement plate first component (501), the third front longitudinal beam reinforcement plate second component (502), and the third front longitudinal beam reinforcement plate third component (503) are respectively fixedly connected to the lower left side of the inner surface of the front longitudinal beam inner plate (1) and the inner surface of the front longitudinal beam outer plate (2) through multiple welding points.

10. The automobile front longitudinal beam reinforcement structure according to claim 6, characterized in that: The fourth front longitudinal beam reinforcement plate first component (601), the fourth front longitudinal beam reinforcement plate second component (602), and the fourth front longitudinal beam reinforcement plate third component (603) are respectively fixedly connected to the lower right side of the inner surface of the front longitudinal beam inner plate (1) and the inner surface of the front longitudinal beam outer plate (2) through multiple welding points.

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