CN109050455B - Front anti-collision beam assembly of automobile and automobile - Google Patents

Abstract

The invention discloses a front anti-collision beam assembly of an automobile and the automobile, wherein the front anti-collision beam assembly comprises a front anti-collision beam, a connecting box and a connecting plate, the front anti-collision beam is arranged along the width direction of an automobile body of the automobile, the front end face of the connecting box is fixedly connected to the rear side face of the front anti-collision beam, a connecting wing plate attached to the end face of the front anti-collision beam is arranged outside a box body of the connecting box, the connecting plate is detachably arranged on a front vertical beam of an automobile body framework of the automobile, and the rear end face of the connecting box is fixedly connected to the surface of the. The front anti-collision beam assembly is used for crumpling and absorbing energy through the front anti-collision beam and the connecting box which are fixedly connected, and the connecting plate which is fixedly connected with the connecting box is detachably arranged on the front vertical beam of the automobile body framework, so that the front anti-collision beam assembly can be conveniently detached, installed and replaced after collision.

Description

Front crash beam assembly of automobile and automobile

technical field

The invention relates to the technical field of automobiles, in particular to a front anti-collision beam assembly of an automobile and an automobile.

Background technique

The crash performance of the car plays a vital role in the safety of the car. With the development of new energy vehicles, the requirements for the lightweight design of the body frame are getting higher and higher. Under the lightweight design requirements, it is also necessary to improve the crash performance and rigidity of the vehicle to ensure the safety performance of the vehicle.

As a part of the aluminum alloy frame body frame of the new energy vehicle, the front anti-collision beam is not only required to fully absorb the front impact force, but also to be firmly connected to the body frame after a collision and can be easily disassembled and replaced.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a front anti-collision beam assembly of an automobile, the front anti-collision beam assembly is crushed and energy-absorbing through the fixedly connected front anti-collision beam and the connection box, and is fixedly connected to the connection box by the connection box. The plate is detachably installed on the front vertical beam of the body frame, so as to facilitate the disassembly and installation of the front anti-collision beam assembly and the replacement after collision.

The invention provides a front anti-collision beam assembly of an automobile, and the front anti-collision beam assembly includes:

a front anti-collision beam, the front anti-collision beam is arranged along the width direction of the vehicle body;

a junction box, the front end of the junction box is fixedly connected to the rear side of the front anti-collision beam, and the box body of the junction box has a connecting wing plate attached to the end surface of the front anti-collision beam; and

The connecting plate is detachably mounted on the front vertical beam of the body frame of the automobile, and the rear end surface of the connecting box is fixedly connected to the surface of the connecting plate.

Optionally, the inside of the box body of the connection box has a crush cavity and a connection rib arranged in the crush cavity, wherein the connection rib is arranged to: When the collision force of the collision beam is applied, the connection box is guided to produce a crushing deformation tendency that causes the connection wing plate to press the end face of the front collision beam.

Optionally, the connecting ribs include:

The main impact force transmission rib is connected between the front side wall and the rear side wall of the connection box to transmit the impact force to the connection plate during the collapse process of the connection box ;

The impact force pair transmission rib is connected between the front side wall and the inner side wall of the connection box, so as to transmit the component force of the impact force to the connection box during the collapse of the connection box. the inner sidewall of the junction box and causing the inner sidewall of the junction box to collapse to a higher degree than the outer sidewall of the junction box; and

The inner swing guide rib of the wing plate is connected between the outer side wall and the rear side wall of the connection box to guide the extension along the outer side wall during the collapse of the connection box The connecting wings tend to swing toward the end face of the front crash beam.

Optionally, the connecting rib further includes:

The inner crush guide rib is connected between the inner side wall and the rear side wall of the connection box to guide the inner side wall of the connection box to follow any Component deformation.

Optionally,

The front end of the secondary impact force transmission rib is connected at the intersection of the front side wall of the connection box and the main impact force transmission rib, and the rear end is connected between the inner side wall of the connection box and the inner crush guide rib. interchange;

The front end of the wing plate inward swing guide rib is connected at the intersection of the outer side wall and the front side wall of the connection box, and the rear end is connected at the intersection of the rear side wall of the connection box and the main impact force transmission rib;

The rear end of the inner crumpling guide rib is connected at the intersection of the rear side wall of the connection box, the impact force main transmission rib, and the wing plate inward swing guide rib.

Optionally, both the top surface and the bottom surface of the connection box are open-shaped.

Optionally, the connecting wings are fixedly connected to the end face of the front crash beam.

Optionally, the connecting wings are welded to the end face of the front crash beam.

Optionally, the upper edge of the connection plate protrudes above the connection box, and a screw hole is provided for screwing with the corresponding position of the front vertical beam, and the lower edge of the connection plate is in the connection box. The bottom of the frame protrudes out, and a screw connection hole is opened for screw connection with the corresponding position of the front vertical beam.

The present invention also provides an automobile, which includes two front vertical beams and the above-mentioned front anti-collision beam assembly, wherein the two connecting plates of the front anti-collision beam assembly are respectively detachably connected to Two of the front vertical beams.

It can be known from the above embodiments that the present invention provides a front anti-collision beam assembly, the front anti-collision beam assembly includes a front anti-collision beam, a connecting box and a connecting plate, and the front anti-collision beam is arranged along the width direction of the vehicle body. , the front end of the connection box is fixedly connected to the rear side of the front anti-collision beam, and the outside of the box body of the connection box has a connecting wing plate attached to the end face of the front anti-collision beam, and the connecting plate is detachably installed on the body of the car The front vertical beam of the skeleton, and the rear end surface of the connection box is fixedly connected to the surface of the connection plate. Crash energy absorption is performed through the fixedly connected front crash beam and the connection box, and the connecting plate fixedly connected to the connection box is detachably installed on the front vertical beam of the body frame, so that the front crash beam assembly can be easily assembled. Disassembly and installation and replacement after collision. In addition, in the process of collision, the connecting rib can also guide the connecting box to produce a crushing deformation tendency that causes the connecting wings to squeeze the end face of the front bumper beam, thereby enhancing the connection strength of the front bumper beam and the connecting box.

Description of drawings

The following drawings merely illustrate and explain the present invention schematically, and do not limit the scope of the present invention.

1 is a schematic structural diagram of a front anti-collision beam assembly installed on a vehicle body in a specific embodiment of the present invention;

Fig. 2 is the exploded schematic diagram of the front anti-collision beam assembly and the front anti-collision beam of the vehicle body in the specific embodiment of the present invention;

3 is an exploded schematic diagram of a front anti-collision beam assembly in a specific embodiment of the present invention;

FIG. 4 is a schematic diagram of the comparison of the front anti-collision beam assembly before the collision and after the collision in the specific embodiment of the present invention.

Label description:

10 Front anti-collision beam assembly;

11 Front crash beam;

12 connection box;

121 Connecting the wing plate;

122 connecting ribs;

122a The main transmission rib of impact force;

122b Impact force pair transmission rib;

122c Inward swing guide rib of wing plate;

122d inner crush guide ribs;

13 connecting plate;

131 screw holes;

14 bolts;

20 Front vertical beams.

Detailed ways

In order to have a clearer understanding of the technical features, objects and effects of the invention, the specific embodiments of the invention will now be described with reference to the accompanying drawings, in which the same reference numerals denote the same parts.

As used herein, "schematic" means "serving as an example, instance, or illustration" and any illustration, embodiment described herein as "schematic" should not be construed as a preferred or advantageous one Technical solutions.

In order to make the drawings concise, each drawing only schematically shows the relevant parts of the present invention, and does not represent the actual structure of the product. In addition, in order to make the drawings concise and easy to understand, in some drawings, only one of the components having the same structure or function is schematically shown, or only one of them is marked.

In order to solve the technical problem of assembling the front anti-collision beam on the body frame of the aluminum alloy frame structure, facilitating installation and disassembly, and replacing it in time after the collision, the present invention provides a front anti-collision beam assembly of an automobile. The collision beam assembly is crushed and absorbed by the fixedly connected front anti-collision beam and the connection box, and is detachably installed on the front vertical beam of the body frame by the connection plate fixedly connected to the connection box, so as to facilitate the front collision avoidance. Disassembly and installation of beam assembly and replacement after collision.

The present invention describes the technical solutions of the present invention in detail with reference to accompanying drawings 1 to 4, wherein, Fig. 1 is a schematic structural diagram of a front anti-collision beam assembly installed on a vehicle body in a specific embodiment of the present invention; Fig. 2 is a specific implementation of the present invention In the example, the exploded schematic diagram of the front anti-collision beam assembly and the front anti-collision beam of the vehicle body; FIG. 3 is the exploded schematic diagram of the front anti-collision beam assembly in the specific embodiment of the present invention; FIG. 4 is the front anti-collision beam assembly in the specific embodiment of the present invention. A schematic diagram of the comparison before and after the collision.

It should be noted that the azimuth words "front, rear, upper, lower, inner and outer" appearing in this article are all based on the position after the front anti-collision beam assembly 10 is installed to the vehicle body, and the "front" refers to the The front direction of the car along the length of the car body, "rear" refers to the direction of the rear of the car, "up" refers to the direction of the roof of the car along the height direction of the car body, and "down" refers to the direction of the bottom of the car , "in" refers to the direction toward the inside of the car, "outside" refers to the direction toward the outside of the car. The use of these directional words is only to clearly express the technical solution, and does not constitute a limitation on the technical solution claimed in the present application.

In a specific embodiment, the present invention provides a front anti-collision beam assembly 10 of an automobile. The front anti-collision beam assembly 10 includes a front anti-collision beam 11 , a connecting box 12 and a connecting plate 13 .

The front anti-collision beam 11 is arranged along the width direction of the vehicle body. As shown in FIG. 1 and FIG. 2 , the front anti-collision beam 11 generally extends in the width direction of the vehicle body, and gradually moves toward the rear of the vehicle body from the middle part to the two ends. Bending to form a front anti-collision beam 11 with a certain radian, so that the two ends of the front of the car body are recovered to the middle of the car body, so as to meet the design requirements for the shape of the front of the car body.

As shown in FIG. 2 and FIG. 3 , the front end of the connection box 12 is fixedly connected to the rear side of the front bumper beam 11 . Specifically, the connection can be fixed by welding, or by other fixing methods such as riveting. And the outside of the box body of the junction box 12 has a connecting wing plate 121 attached to the end face of the front anti-collision beam 11 , and the connecting wing plate 121 further connects the junction box 12 to the front anti-collision beam 11, thereby improving the connection box 12. The firmness of the connection with the front crash beam 11. Similarly, the connecting wing plate 121 and the end face of the front crash beam 11 can be fixed by welding, and can also be connected by other fixing methods such as riveting.

As shown in FIGS. 1 and 2 , the connecting plate 13 is detachably mounted on the front vertical beam 20 of the vehicle body frame, and the rear end surface of the connecting box 12 is fixedly connected to the surface of the connecting plate 13 . In this way, after the connection box 12 and the connecting portion are fixed, the front bumper beam assembly 10 can be detachably installed on the front vertical beam 20 of the automobile through the connecting plate 13, so that the front bumper beam assembly 10 It can be installed on the body frame of the aluminum alloy frame structure, thereby avoiding damage to the body frame of the aluminum alloy frame structure when the anti-collision beam is directly fixed on the body frame by welding in the prior art. In addition, after a front collision occurs, the front anti-collision beam assembly 10 can be disassembled from the vehicle body frame without destroying the front vertical beam 20 of the vehicle body frame after the front anti-collision beam assembly 10 is crushed and deformed. Replace the new front crash beam assembly 10 to reduce the cost of repairing the body frame.

Further, as shown in FIG. 2 and FIG. 3 , the upper edge of the connecting plate 13 protrudes above the connecting box 12 and opens a screw hole 131 that is screwed with the corresponding position of the front vertical beam 20 . The lower edge protrudes below the connection box 12 and defines a screw hole 131 which is screwed with the corresponding position of the front vertical beam 20 . In this way, the front bumper beam assembly 10 is detachably connected to the front vertical beam 20 with the matching bolts 14 .

In this way, the middle part of the connecting plate 13 is attached and fixed to the rear surface of the connecting box 12 , and the upper and lower edges extend out of the connecting box 12 , thereby forming a connecting area with the front vertical beam 20 . Both the upper and lower connection areas are provided with screw holes 131 , so as to prevent the connection box 12 from interfering with the connection between the connection plate 13 and the front vertical beam 20 .

The fixing of the connecting plate 13 on the connecting box 12 can further enhance the connection strength of the front anti-collision beam assembly 10 to prevent the front anti-collision beam assembly 10 from falling off the body frame after a collision.

The connection box 12 of the front anti-collision beam assembly 10 can be further used as a collapse energy-absorbing component to assist the front anti-collision beam 11 to collapse and absorb the front impact force, so as to reduce the damage of the front impact force to the passenger compartment and improve the front impact resistance. Crash performance of beam assembly 10 . The structure of the connection box 12 is further optimized and designed below.

As shown in FIG. 3 and FIG. 4 , the box body of the connection box 12 has a crush cavity and a connection rib 122 arranged in the crush cavity, wherein the connection rib 122 is arranged so that when the connection box 12 is subjected to a front protection When the collision force of the collision beam 11 occurs, the connection box 12 is guided to produce a crushing deformation tendency that causes the connection wings 121 to press against the end face of the front collision beam 11 . In this way, the crush cavity of the connection box 12 can be used for crushing and absorbing the collision force, so as to reduce the collision force transmitted by the front anti-collision beam 11 to the front vertical beam 20; Therefore, the connecting box 12 is crushed and deformed to the inside of the vehicle body, and the connecting wing plate 121 has a tendency to be pressed against the end face of the front crash beam 11 . When the front impact force is greater, the connection between the connecting wing plate 121 and the end face of the front impact beam 11 is stronger, which fully enhances the connection strength of the front impact beam assembly 10 and ensures that the impact force is fully absorbed during the collision.

In a specific embodiment, the connecting rib 122 includes a main impact force transmission rib 122a, a secondary impact force transmission rib 122b and a wing plate inner swing guide rib 122c.

Combined with the comparative schematic diagram of the front anti-collision beam assembly 10 before the collision and after the collision shown in FIG. 4 , this figure only takes a certain state as an example to illustrate, wherein the arrow and the dotted line are the connection box 12 after the front collision occurs. The trend and position of the collapse deformation. The main impact force transmission rib 122a is connected between the front side wall and the rear side wall of the connection box 12 to transmit the collision force to the connection plate 13 during the collapse of the connection box 12, thereby forming a collision force transmission path, enhancing the The strength of the junction box 12 .

The pair of impact force transmission ribs 122b are connected between the front side wall and the inner side wall of the connection box 12, so as to transmit the component force of the collision force to the inner side wall of the connection box 12 during the collapse of the connection box 12, and make the connection box 12 collapse. The collapse degree of the inner side wall of the connection box 12 is higher than that of the outer side wall of the connection box 12 . The collision force transmitted from the front bumper beam 11 to the front side wall of the connection box 12 is further guided to the inner side wall of the connection box 12 through the pair of impact force transmission ribs 122b, thereby reducing the transmission of the collision force to the outer side wall of the connection box 12. As a result, the connection between the connecting wings 121 and the front anti-collision beam 11 fails, effectively ensuring the connection stability of the front anti-collision beam 11 , so that the collision force is further absorbed by the collapse cavity of the connection box 12 .

The wing plate inward swing guide rib 122c is connected between the outer side wall and the rear side wall of the connection box 12 to guide the connection wing plate 121 protruding along the outer wall during the collapse of the connection box 12 to form a forward collision beam 11's end face swing trend.

The front end of the wing plate inward swing guide rib 122c is connected to the outer side wall, and the wing plate inward swing guide rib 122c is subjected to the action of the front impact force at the connection, and the outer wall of the connection box 12 is crushed and deformed, and can further guide the connection wing The plate 121 takes this connection as a swinging fulcrum to generate a tendency for the end face of the front crash beam 11 to swing, thereby improving the firmness of the connection between the connecting wing plate 121 and the front crash beam 11 in the event of a collision.

Further, in a specific embodiment, the connecting rib 122 further includes an inner crushing guide rib 122d, and the inner crushing guide rib 122d is connected between the inner side wall and the rear side wall of the connecting box 12 to prevent the collapse of the connecting box 12 During the shrinking process, the inner side wall of the guiding connection box 12 is deformed with the component force. As shown in FIG. 4 , the inner crumple guide ribs 122d guide the inner side wall to collapse and deform toward the interior of the vehicle body, so that the inner side wall has a higher degree of collapse than that of the outer side wall.

For the above-mentioned embodiments, the included angle between the inner side wall and the rear side wall of the connection box 12 is an obtuse angle, thereby enhancing the collapse deformation of the inner side wall toward the interior of the vehicle body. Moreover, the obtuse angle between the inner side wall and the rear side wall is larger than the obtuse angle between the outer side wall and the rear side wall, so that the collapse degree of the inner side wall is higher than that of the outer side wall of the connection box 12 .

Preferably, the obtuse angle between the inner side wall and the rear side wall is 113°, and the obtuse angle between the outer side wall and the rear side wall is 95.5°.

As shown in FIG. 4 , the front end of the secondary impact force transmission rib 122b is connected to the intersection of the front side wall of the connection box 12 and the main impact force transmission rib 122a, and the rear end is connected to the inner side wall of the connection box 12 and the inner crush guide rib 122d The front end of the wing inner swing guide rib 122c is connected to the intersection of the outer side wall and the front side wall of the connection box 12, that is to say, the front end of the wing inner swing guide rib 122c is connected to the connecting wing plate 121. At the rear end, the connecting wing plate 121 can have the greatest tendency to swing the end face of the forward collision beam 11, and the rear end of the wing plate inward swing guide rib 122c is connected to the rear side wall of the connection box 12 and the impact The intersection of the main force transmission rib 122a; the rear end of the inner collapse guide rib 122d is connected to the intersection of the rear side wall of the connection box 12, the main impact force transmission rib 122a, and the wing inner swing guide rib 122c.

The top surface and the bottom surface of the connection box 12 are both open, so as to reduce the weight of the front crash beam assembly 10 .

It can be seen from the above-mentioned embodiments that the front anti-collision beam assembly 10 provided by the present invention performs crushing energy absorption through the fixedly connected front anti-collision beam 11 and the connection box 12, and is fixedly connected to the connection box 12. The plate 13 is detachably installed on the front vertical beam 20 of the vehicle body frame, so as to facilitate the disassembly and installation of the front crash beam assembly 10 and the replacement after a collision. In addition, in the process of collision, the connecting rib 122 can also guide the connecting box 12 to produce a crushing deformation tendency that causes the connecting wings 121 to squeeze the end face of the front bumper beam 11, thereby enhancing the connection between the front bumper beam 11 and the front bumper beam 11. The connection strength of the box 12.

In addition to the above-mentioned front anti-collision beam assembly 10, the present invention also provides an automobile, which includes two front vertical beams 20, and the front anti-collision beam assembly 10 in the above-mentioned embodiments, the front anti-collision beam assembly The two connecting plates 13 formed into 10 are respectively detachably connected to the two front vertical beams 20 at corresponding positions. Since the above-mentioned front anti-collision beam assembly 10 has the above technical effects, the automobile having the front anti-collision beam assembly 10 also has the same technical effect, which will not be repeated here.

As used herein, "one" does not mean to limit the number of relevant parts of the invention to "only one", and "one" does not mean to exclude "more than one" number of relevant parts of the invention.

In this document, "first", "second", etc. are only used to distinguish each other, but do not indicate the degree of importance and order, and the premise of mutual existence.

Unless otherwise indicated, numerical ranges herein include not only the entire range between its two endpoints, but also several subranges subsumed therein.

It should be understood that although this specification is described according to various embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

The series of detailed descriptions listed above are only specific descriptions for the feasible embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Changes, such as combination, division or repetition of features, should be included within the scope of protection of the present invention.

Claims (9)

1. A front anti-collision beam assembly of an automobile, wherein the front anti-collision beam assembly (10) comprises: a front anti-collision beam (11), the front anti-collision beam (11) is arranged along the width direction of the vehicle body; A junction box (12), the front end surface of the junction box (12) is fixedly connected to the rear side surface of the front anti-collision beam (11), and the box body of the junction box (12) has a box outside the the connecting wings (121) of the end face of the front crash beam (11); and A connecting plate (13), the connecting plate (13) is detachably mounted on the front vertical beam (20) of the body frame of the automobile, and the rear end surface of the connecting box (12) is fixedly connected to the connecting The surface of the plate (13), the inside of the box body of the connection box (12) has a crush cavity and a connection rib (122) arranged in the crush cavity, wherein the connection rib (122) is arranged as : when the junction box (12) is subjected to a collision force from the front bumper beam (11), the collapse degree of the inner side wall of the junction box (12) is higher than that of the junction box (12) The degree of collapse of the outer sidewall of the junction box (12) guides the connection box (12) to produce a tendency to crush and deform the connecting wing plate (121) against the end face of the front crash beam (11). 2. The front crash beam assembly according to claim 1, wherein the connecting rib (122) comprises: The main impact force transmission rib (122a), the main impact force transmission rib (122a) is connected between the front side wall and the rear side wall of the connection box (12), so as to prevent the collapse process of the connection box (12) The collision force is transmitted to the connecting plate (13) in the middle; The pair of impact force transmission ribs (122b), the pair of impact force transmission ribs (122b) are connected between the front side wall and the inner side wall of the connection box (12), so as to prevent the collapse of the connection box (12) In the process, the component force of the collision force is transmitted to the inner side wall of the connection box (12), and the collapse degree of the inner side wall of the connection box (12) is higher than that of the outer side of the connection box (12). the degree of collapse of the wall; and The wing plate inward swinging guide rib (122c) is connected between the outer side wall and the rear side wall of the connection box (12), so as to be in the inner side of the connection box (12). During the collapse process, the connecting wings (121) extending along the outer side walls are guided to generate a tendency to swing toward the end face of the front crash beam (11). 3. The front crash beam assembly according to claim 2, wherein the connecting ribs (122) further comprise: an inner crush guide rib (122d), the inner crush guide rib (122d) is connected between the inner side wall and the rear side wall of the connection box (12), so as to prevent the collapse of the connection box (12) During the process, the inner side wall of the connecting box (12) is guided to deform with the component force. 4. The front crash beam assembly of claim 3, wherein The front end of the secondary impact force transmission rib (122b) is connected to the intersection of the front side wall of the connection box (12) and the main impact force transmission rib (122a), and the rear end is connected to the connection box (12) The intersection of the inner sidewall of the tumbler and the inner crush guide rib (122d); The front end of the wing plate inward swing guide rib (122c) is connected to the intersection of the outer side wall and the front side wall of the connection box (12), and the rear end is connected to the rear side wall of the connection box (12) and the the intersection of the main impact force transmission ribs (122a); The rear end of the inner crush guide rib (122d) is connected to the intersection of the rear side wall of the connection box (12) with the impact force main transmission rib (122a) and the wing plate inward swing guide rib (122c). place. 5. The front bumper beam assembly according to claim 1, wherein the top surface and the bottom surface of the connection box (12) are both open-shaped. 6. The front anti-collision beam assembly according to claim 1, wherein the connecting wing plate (121) is fixedly connected to the end face of the front anti-collision beam (11). 7. The front anti-collision beam assembly according to claim 6, wherein the connecting wing plate (121) is welded with the end face of the front anti-collision beam (11). 8. The front crash beam assembly according to claim 1, characterized in that the upper edge of the connecting plate (13) protrudes above the connecting box (12) and opens up to the front vertical A screw hole (131) to which the beam (20) is screwed at a corresponding position, the lower edge of the connection plate (13) protrudes below the connection box (12), and is provided with the front vertical beam (20) The screw holes (131) for screwing in the corresponding positions. 9. An automobile, characterized in that the automobile comprises two front vertical beams (20), the front anti-collision beam assembly (10) according to any one of claims 1-8, the front anti-collision beam The two connecting plates (13) of the assembly (10) are respectively detachably connected to the two front vertical beams (20).

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