Automobile front longitudinal beam assembly

Abstract

The utility model provides an automobile front longitudinal beam assembly, and belongs to the technical field of automobile safety frame component structures. According to the automobile front longitudinal beam assembly, the symmetrical arc-shaped beams are installed on the two longitudinal beam bodies respectively, stress channels of an anti-collision cross beam are increased when an automobile collides, meanwhile, the arc-shaped beams are gradually narrowed from the rear ends to the front ends, it is guaranteed that stress borne by the two arc-shaped beams can be smoothly transmitted to the longitudinal beam bodies when the automobile collides, and the anti-collision effect of the anti-collision cross beam is improved. The safety when the automobile is collided is enhanced, and the damage to a driver, passengers and the automobile is reduced; the problems that in the prior art, a front longitudinal beam assembly is generally provided with two longitudinal beam bodies, the two longitudinal beam bodies are connected to an anti-collision cross beam, the anti-collision cross beam is only provided with two stress channels during collision, if serious collision occurs in the running process of an automobile, the anti-collision effect is poor, the safety performance of the automobile is insufficient during offset collision, and the anti-collision effect is poor are solved. And a vehicle, a driver and passengers are easily injured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile safety frame component structure, especially relates to an automobile front longitudinal beam assembly. BACKGROUND

[0002] The front longitudinal beam assembly refers to an important structure of the front part of an automobile, which mainly comprises a front longitudinal beam, a cross beam, a connecting piece and the like to ensure the stability and safety of the automobile during driving.

[0003] Among them, a common structure form is that the automobile front longitudinal beam assembly is fixedly connected with the front anti-collision cross beam to form two force channels. Two front longitudinal beams are arranged in parallel and at intervals, and have two mounting surfaces with the front anti-collision cross beam to form a certain anti-collision cross beam coverage area to bear the impact force and pressure of the front part of the automobile, absorb and disperse the impact force when the automobile collides, avoid deformation of the cab, and protect the safety of the passengers in the vehicle.

[0004] The front longitudinal beam assembly in the prior art generally has two longitudinal beam bodies, the two longitudinal beam bodies are connected to the anti-collision cross beam, and the anti-collision cross beam has only two force channels when colliding. If a serious collision occurs during driving of the automobile, the anti-collision effect is weak, and the safety performance of the vehicle is insufficient when a bias collision occurs, so that the vehicle and the driver and passengers are easily injured. UTILITY MODEL CONTENTS

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide an automobile front longitudinal beam assembly to solve the problem that the front longitudinal beam assembly in the prior art generally has two longitudinal beam bodies, the two longitudinal beam bodies are connected to the anti-collision cross beam, and the anti-collision cross beam has only two force channels when colliding. If a serious collision occurs during driving of the automobile, the anti-collision effect is weak, and the safety performance of the vehicle is insufficient when a bias collision occurs, so that the vehicle and the driver and passengers are easily injured.

[0006] To achieve the above-mentioned purpose and other related purposes, the utility model provides an automobile front longitudinal beam assembly, which comprises a longitudinal beam assembly and an anti-collision cross beam, the longitudinal beam assembly comprises two symmetrically arranged longitudinal beam bodies, the front ends of the two longitudinal beam bodies are fixedly connected to the inner side surface of the anti-collision cross beam;

[0007] An arc-shaped beam is fixedly installed on each of the two longitudinal beam bodies, and the arc-shaped beams on the two longitudinal beam bodies are symmetrical;

[0008] The rear end of the arc-shaped beam is fixedly connected to one of the longitudinal beam bodies;

[0009] The front end of the arc-shaped beam is fixedly connected to the inner side surface of the anti-collision cross beam;

[0010] The arc-shaped beam gradually narrows from the rear end to the front end.

[0011] Optionally, a connecting plate is further included, and the front end of the longitudinal beam body and the front end of the arc-shaped beam on the same side are fixedly connected through the connecting plate.

[0012] Optionally, an arc-shaped groove is arranged in the middle of the connecting plate.

[0013] Optionally, four short longitudinal beams are further included, and the front end of the two longitudinal beam bodies and the front end of the two arc-shaped beams are fixedly connected to the inner side of the anti-collision cross beam in sequence.

[0014] Optionally, four gusset plates are further included, and are installed between the front end of the two longitudinal beam bodies, the front end of the two arc-shaped beams and the inner side of the anti-collision cross beam in sequence.

[0015] Optionally, a stress dispersion groove is arranged on the arc-shaped beam.

[0016] Optionally, the arc-shaped beam is installed on the outer side of the longitudinal beam body.

[0017] As described above, the automobile front longitudinal beam assembly has at least the following beneficial effects:

[0018] Compared with the prior art in which the longitudinal beam body and the anti-collision cross beam have only two stress channels, the automobile front longitudinal beam assembly does not increase the longitudinal beam body, and by installing symmetrical arc-shaped beams on the two longitudinal beam bodies, the stress channels of the anti-collision cross beam are increased when the automobile collides, and the arc-shaped beams gradually narrow from the rear end to the front end, which ensures that the force received by the two arc-shaped beams can be smoothly transmitted to the longitudinal beam body when the collision occurs, thereby enhancing the safety of the automobile when the collision occurs and reducing the harm to the driver and passengers and the vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The figure shows the schematic diagram of the automobile front longitudinal beam assembly.

[0020] Element number explanation

[0021] Longitudinal beam body 1, anti-collision cross beam 2, arc-shaped beam 3, stress dispersion groove 31, connecting plate 4, arc-shaped groove 41, short longitudinal beam 5, gusset plate 6. DETAILED DESCRIPTION

[0022] The embodiments of the present application will be described in detail by specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the specification.

[0023] Please refer to Figure 1It is to be understood that the structure, proportion, size and the like shown in the drawings of the present specification are only used to cooperate with the content disclosed in the specification, so that those skilled in the art can understand and read, and are not used to limit the implementation conditions of the present application, so they do not have technical significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effect and purpose of the present application, should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" in the specification are only for the convenience of clear description, and are not used to limit the scope of the present application. The change or adjustment of the relative relationship is also considered as the implementation of the present application without changing the technical content.

[0024] The following embodiments are only for illustration. Various embodiments can be combined, which are not limited to the content shown in the following single embodiment.

[0025] Please refer to Figure 1 The present application provides a kind of automobile front longitudinal beam assembly, just like the front longitudinal beam assembly in prior art, the front longitudinal beam assembly of the present application includes longitudinal beam component and crash beam 2, longitudinal beam component includes two symmetrical longitudinal beam body 1, the front end of two longitudinal beam body 1 and the inner side of crash beam 2 are fixedly connected, the difference from prior art is that, two the longitudinal beam body 1 is respectively fixedly installed with arc beam 3, two the longitudinal beam body 1 on arc beam 3 is symmetrical;The rear end of the arc beam 3 is fixedly connected on one longitudinal beam body 1, the front end of the arc beam 3 is fixedly connected on the inner side of the crash beam 2, and gradually narrow from rear end to front end;Compared with the design of two force channels of longitudinal beam body 1 and crash beam 2 in prior art, without additional longitudinal beam body 1, by installing symmetrical arc beam 3 on two longitudinal beam body 1, the force channel of crash beam 2 is increased when the car collides, and the arc beam 3 gradually narrows from rear end to front end, which also ensures that the force received by two arc beams 3 can be smoothly transmitted to longitudinal beam body 1 when collision occurs, enhances the safety of the car when collision occurs, and reduces the harm to the driver and passengers and vehicles.

[0026] In another embodiment, please refer to Figure 1, the front end of the same side of the longitudinal beam body 1 and the front end of the arc-shaped beam 3 are fixedly connected through the connecting plate 4, the connecting plate 4 is made of metal material and has certain strength and toughness; the embodiment makes the connection between the longitudinal beam body 1, the anti-collision cross beam 2 and the arc-shaped beam 3 more firm, ensures that the impact force can be effectively transmitted and dispersed when the collision occurs; at the same time, since the connecting plate 4 connects the anti-collision cross beam 2, the longitudinal beam body 1 and the arc-shaped beam 3 together, the impact force can be quickly transmitted to the longitudinal beam body 1 and the arc-shaped beam 3 through the connecting plate 4, the collision energy can be better absorbed and dispersed, the collision energy is avoided to be concentrated in the local area of the anti-collision cross beam 2, thereby the damage degree of the local structure of the vehicle body is reduced and the safety of the passengers in the vehicle is improved.

[0027] In another embodiment, referring to Figure 1 , the middle part of the connecting plate 4 is provided with an arc-shaped groove 41; the design of the arc-shaped groove 41 can make the connecting plate 4 fit the longitudinal beam body 1 and the arc-shaped beam 3 more closely, effectively reduce the looseness and gap of the connection, ensure the reliability of the connection when stressed, and help to improve the rigidity of the whole front structure of the vehicle body; and the design of the arc-shaped groove 41 makes the impact force more effectively guided and dispersed through the arc-shaped groove 41 when the vehicle collides, so that the impact force is better transmitted to other structural parts of the vehicle body along the connecting plate 4.

[0028] In another embodiment, referring to Figure 1 , the automobile front longitudinal beam assembly further comprises four short longitudinal beams 5, which are sequentially fixed to the inner side surface of the anti-collision cross beam 2 at the front ends of the two longitudinal beam bodies 1 and the front ends of the two arc-shaped beams 3; the design makes the anti-collision cross beam 2 be able to evenly disperse the impact force through the four short longitudinal beams 5, forming four effective force channels, and the embodiment effectively optimizes the stress distribution when the vehicle collides, so that the vehicle can withstand greater impact force when colliding, and this layout can more evenly disperse the impact force, improve the overall structural strength and crashworthiness.

[0029] In another embodiment, referring to Figure 1 , the automobile front longitudinal beam assembly further comprises four gaskets 6, which are sequentially installed between the front ends of the two longitudinal beam bodies 1, the front ends of the two arc-shaped beams 3 and the inner side surface of the anti-collision cross beam 2, effectively eliminating the installation gap between the front ends of the two longitudinal beam bodies 1, the front ends of the two arc-shaped beams 3 and the inner side surface of the anti-collision cross beam 2, and enhancing the installation firmness of the anti-collision cross beam 2.

[0030] In another embodiment, referring to Figure 1The stress dispersion groove 31 is arranged on the arc-shaped beam 3, which not only reduces the material usage to the maximum extent, but also further enhances the load capacity of the arc-shaped beam 3, and when the vehicle collision occurs, the stress dispersion groove 31 can be used as an energy absorption area to absorb the collision energy through the deformation of the stress dispersion groove 31, thereby improving the safety performance of the vehicle.

[0031] In another embodiment, referring to Figure 1 The arc-shaped beam 3 is installed on the outer side of the longitudinal beam body 1, and of course, the designer can also choose to symmetrically and fixedly install the arc-shaped beam 3 on the inner side of the longitudinal beam body 1, and the position of the arc-shaped beam 3 can be adjusted according to actual needs to achieve the best anti-collision effect, which will not be described here.

[0032] In summary, compared with the prior art in which the longitudinal beam body 1 and the anti-collision cross beam 2 have only two stress channels, in the case of not additionally increasing the longitudinal beam body 1, by respectively installing the symmetric arc-shaped beams 3 on the two longitudinal beam bodies 1, the stress channels of the anti-collision cross beam 2 are increased when the vehicle collides, and the arc-shaped beams 3 gradually narrow from the rear end to the front end, which also ensures that the force received by the two arc-shaped beams 3 can be smoothly conducted to the longitudinal beam body 1 when the collision occurs, thereby enhancing the safety of the vehicle when the collision occurs and reducing the harm to the driver and passengers. Therefore, the utility model effectively overcomes the shortcomings of the prior art and has high industrial utilization value.

[0033] The above embodiments only exemplarily illustrate the principles and effects of the utility model, and are not used to limit the utility model. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. A front longitudinal beam assembly of an automobile, comprising a longitudinal beam assembly and a crash beam, the longitudinal beam assembly comprising two symmetrical longitudinal beam bodies, the front ends of the two longitudinal beam bodies and the inner side of the crash beam being fixedly connected; characterized in that: each of the two longitudinal beam bodies is fixedly provided with an arc-shaped beam, the arc-shaped beams on the two longitudinal beam bodies being symmetrical; the rear end of the arc-shaped beam is fixedly connected to one of the longitudinal beam bodies; the front end of the arc-shaped beam is fixedly connected to the inner side of the crash beam; the arc-shaped beam gradually narrows from the rear end to the front end.

2. The automotive front rail assembly of claim 1, wherein, Further comprising: a connecting plate, the front end of the longitudinal beam body and the front end of the arc-shaped beam on the same side being fixedly connected by the connecting plate.

3. The front longitudinal beam assembly of an automobile according to claim 2, characterized in that: the middle part of the connecting plate is provided with an arc-shaped recess.

4. The automotive front rail assembly of claim 1, wherein, Further comprising: four short longitudinal beams, the front ends of the two longitudinal beam bodies and the front ends of the two arc-shaped beams being fixedly connected to the inner side of the crash beam in sequence.

5. The automotive front rail assembly of claim 1, wherein, Further comprising: four gaskets, being installed between the front ends of the two longitudinal beam bodies and the front ends of the two arc-shaped beams and the inner side of the crash beam in sequence.

6. The front longitudinal beam assembly of an automobile according to claim 1, characterized in that: the arc-shaped beam is provided with a stress dispersion groove.

7. The front longitudinal beam assembly of an automobile according to claim 1, characterized in that: the arc-shaped beam is installed on the outer side of the longitudinal beam body.

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