CN108357452A - Back buffer beam for automobile assembly and automobile - Google Patents

Abstract

The invention discloses an automobile rear anti-collision beam assembly, which comprises a rear anti-collision beam outer plate, the rear anti-collision beam outer plate is in the shape of a long strip with two ends open, the section of the rear anti-collision beam outer plate is U-shaped, and the rear anti-collision beam outer plate is U-shaped. The outer panel of the anti-collision beam has a first end and a second end arranged oppositely, and the first end and the second end are provided with a rear anti-collision beam inner panel, a rear anti-collision beam energy-absorbing box and a rear anti-collision beam installation plate , the inner panel of the rear anti-collision beam is installed in the U-shaped cavity of the outer panel of the rear anti-collision beam, the inner panel of the rear anti-collision beam is installed between the outer panel of the rear anti-collision beam and the energy-absorbing box of the rear anti-collision beam, the rear anti-collision beam The beam energy absorbing box is installed between the rear anti-collision beam installation plate and the rear anti-collision beam inner panel. Anti-collision beam inner panel connection. The invention can solve the problems of complex structure, general anti-collision effect and single function. The invention also discloses an automobile using the rear anti-collision beam assembly of the automobile.

Description

Automobile rear anti-collision beam assembly and automobile

technical field

The invention relates to the technical field of auto parts, in particular to an automobile rear anti-collision beam assembly and an automobile.

Background technique

With the rapid development of the automobile industry, automobiles have become one of the indispensable means of transportation for people to appear. In the actual driving process, the running speed of the car is usually faster, and the problem of car collision is also becoming more and more serious. The speed of the car is fast, and there may be a rear-end collision, which will cause an impact on the rear of the car. During the impact, it will pose a certain threat to the personal safety of the user. Because the body has a large mass, the impact force is also very large. And it is a rigid collision, which will cause certain damage to the rear structure, fuel system and other rear parts of the passenger car, affecting the long-term use of the passenger car and people's safety.

As an automobile safety component, the automobile rear anti-collision beam assembly plays a role in protecting the safety of the automobile in the event of a rear-end collision. When the vehicle collides at a low speed, it can absorb the collision energy as much as possible to ensure that the main body structure Maintenance costs; when the vehicle collides at high speed, it uses its own full deformation to absorb the collision energy to protect the safety of the fuel tank.

However, the traditional rear anti-collision beam assembly generally has the problems of general anti-collision effect and single function.

Contents of the invention

An object of the present invention is to provide an automobile rear anti-collision beam assembly to solve the problems of general anti-collision effect and single function.

An automobile rear anti-collision beam assembly, comprising a rear anti-collision beam outer plate, the rear anti-collision beam outer plate is in the shape of a long bar with two ends open, and the cross-section of the rear anti-collision beam outer plate is U-shaped, the The outer panel of the rear anti-collision beam has a first end and a second end oppositely arranged, and the first end and the second end are provided with a rear anti-collision beam inner panel, a rear anti-collision beam energy-absorbing box and a The rear anti-collision beam installation plate, the rear anti-collision beam inner panel is installed in the U-shaped cavity of the rear anti-collision beam outer panel, the rear anti-collision beam inner panel is installed on the rear anti-collision beam outer panel and between the rear anti-collision beam energy-absorbing box, the rear anti-collision beam energy-absorbing box is installed between the rear anti-collision beam installation plate and the rear anti-collision beam inner panel, and the second end is set There is a tow hook threaded pipe, and the tow hook threaded pipe is respectively connected with the outer panel of the rear anti-collision beam and the inner panel of the rear anti-collision beam at the second end.

According to the automobile rear anti-collision beam assembly proposed by the present invention, when the vehicle collides, the outer panel of the rear anti-collision beam will be deformed at first, and then the impact force will be transmitted to the inner panel of the rear anti-collision beam and the energy-absorbing box to absorb energy The box is plastically deformed through the collapse of the energy-absorbing ribs, absorbing the energy generated by the impact of the car, and in the rear anti-collision beam assembly of the car, in addition to the energy-absorbing effect of the energy-absorbing box of the rear anti-collision beam, due to the The section of the plate is U-shaped, and the inner panel of the rear anti-collision beam is installed in the U-shaped cavity of the outer panel of the rear anti-collision beam, so that the inner panel of the rear anti-collision beam can absorb the impact force generated after the rear collision of the vehicle body, further Enhance the energy absorption effect and improve the anti-collision effect; the rear anti-collision beam assembly of the car only includes the outer panel of the rear anti-collision beam, the inner panel of the rear anti-collision beam, the energy-absorbing box of the rear anti-collision beam and the installation plate of the rear anti-collision beam, the structure It is simpler and easier to assemble; in addition, by setting the tow hook threaded pipe at the second end of the outer panel of the rear anti-collision beam, the rear anti-collision beam assembly of the automobile can have the function of towing, and the rear anti-collision beam assembly is fully utilized The use space is optimized, the body structure is optimized, and the functionality of the rear anti-collision beam assembly of the car is improved.

In addition, the automobile rear anti-collision beam assembly provided according to the present invention can also have the following additional technical features:

Further, the inner panel of the rear anti-collision beam includes an inner panel main body, a support part extending vertically from both ends of the inner panel main body, and an end along the support part facing away from the inner panel main body Vertically extending welding edges, the welding edges are connected to the outer panel of the rear anti-collision beam, and the main body of the inner panel is connected to the crash box of the rear anti-collision beam.

Further, the second end is provided with a first through hole, the main body of the inner panel located at the second end is provided in the second through hole, and the positions of the first through hole and the second through hole correspond to each other. , the tow hook threaded pipe passes through the first through hole and the second through hole.

Further, the rear anti-collision beam energy-absorbing box includes a rear anti-collision beam energy-absorbing box upper plate and a rear anti-collision beam energy-absorbing box lower plate, and the two ends of the rear anti-collision beam energy-absorbing box are respectively connected to the The rear anti-collision beam installation plate is connected to the rear anti-collision beam inner panel, and the two ends of the rear anti-collision beam energy-absorbing box lower plate are respectively connected to the rear anti-collision beam installation plate and the rear anti-collision beam Inner board connection.

Further, the installation plate of the rear anti-collision beam includes an installation main board part and a side flange extended along one side of the installation main board part, and the side flange and the installation main board part are connected with the rear anti-collision beam. Crash beam crash box connection.

Further, the side flange and the installation main board part are respectively connected to the crash box of the rear anti-collision beam by welding.

Further, several ribs and several second weight-reducing holes are provided on the mounting main board.

Further, several first lightening holes are opened on the outer panel of the rear anti-collision beam.

Further, the tow coupler threaded pipe is connected to the rear anti-collision beam outer panel and the rear anti-collision beam inner panel at the second end through welding, and the rear anti-collision beam mounting plate is welded to the The crash box of the rear anti-collision beam is connected.

Another object of the present invention is to provide an automobile using the above automobile rear anti-collision beam assembly.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and comprehensible from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is a schematic diagram of the exploded structure of the automobile rear anti-collision beam assembly according to the first embodiment of the present invention;

Fig. 2 is a combined structure schematic diagram of the automobile rear anti-collision beam assembly according to the first embodiment of the present invention;

Fig. 3 is a schematic structural view of the inner panel of the rear anti-collision beam in Fig. 1;

Fig. 4 is a structural schematic diagram of the rear anti-collision beam mounting plate in Fig. 1;

Fig. 5 is a partial cross-sectional view of the second end of the outer panel of the rear anti-collision beam in Fig. 2 .

Detailed ways

In order to make the purpose, features and advantages of the present invention more obvious and understandable, the specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings. Several embodiments of the invention are shown in the drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the present invention will be thorough and complete.

It should be noted that when an element is referred to as being “fixed on” another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," "upper," "lower," and similar expressions are for descriptive purposes only and do not indicate or imply the device or Elements must have certain orientations, be constructed and operate in certain orientations, and therefore should not be construed as limitations on the invention.

In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Please refer to Fig. 1 to Fig. 5, the automotive rear anti-collision beam assembly proposed by the first embodiment of the present invention includes the rear anti-collision beam outer panel 10, and the rear anti-collision beam outer panel 10 is a strip with two ends open The outer panel of the rear anti-collision beam has a U-shaped cross-section, and the outer panel 10 of the rear anti-collision beam can be formed by stamping a steel plate, specifically, it can be formed by blanking, punching, trimming and other processes. During specific implementation, notches can be partially dug at both ends of the rear anti-collision beam outer panel 10 to provide installation space for the rear anti-collision beam assembly.

The outer panel 10 of the rear anti-collision beam has a first end 101 and a second end 102 arranged oppositely, and the first end 101 and the second end 102 are provided with a rear anti-collision beam inner panel 20 and a rear anti-collision beam. Crash beam crash box 30 and a rear anti-collision beam mounting plate 40 .

The rear anti-collision beam inner panel 20 is installed in the U-shaped cavity of the rear anti-collision beam outer panel 10, and the rear anti-collision beam inner panel 20 is installed between the rear anti-collision beam outer panel 10 and the rear anti-collision beam outer panel 10. Between the energy-absorbing boxes 30 of the rear anti-collision beam. The inner panel 20 of the rear anti-collision beam can be formed by blanking, punching, flanging and other processes. The rear anti-collision beam outer panel 10 and the rear anti-collision beam inner panel 20 are connected together by spot welding.

The rear anti-collision beam energy absorbing box 30 is installed between the rear anti-collision beam installation plate 40 and the rear anti-collision beam inner panel 20, specifically, the rear anti-collision beam installation plate 40 can be welded It is connected with the crash box 30 of the rear anti-collision beam. The rear anti-collision beam energy-absorbing box 30 and the rear anti-collision beam mounting plate 40 can be formed through blanking, forming punching and flanging and other processes.

The second end 102 is provided with a tow hook threaded pipe 50, and the tow hook threaded pipe 50 is respectively connected to the rear anti-collision beam outer panel 10 and the rear anti-collision beam inner panel 20 located at the second end 102. connect. Specifically, the tow hook threaded pipe 50 may be connected to the rear anti-collision beam outer panel 10 and the rear anti-collision beam inner panel 20 at the second end 102 by welding. The tow hook threaded pipe 50 can be shaped through processes such as blanking, extrusion, cutting, and tapping.

The rear anti-collision beam assembly can be quickly positioned and guided on the vehicle body through the mounting studs (not shown) of the rear wall, and then fixed to the vehicle body by screwing the rear anti-collision beam mounting plate 40 to the rear wall.

In addition, in order to reduce the weight and reduce the fuel consumption of the whole vehicle, several first weight-reducing holes 103 are opened on the outer panel 10 of the rear anti-collision beam.

The rear anti-collision beam inner panel 20 includes an inner panel body part 201, a support part 202 vertically extending along both ends of the inner panel body part 201, and a A welded edge 203 extending vertically from one end of 201 , the welded edge 203 is connected to the outer panel 10 of the rear anti-collision beam, and the main body of the inner panel 201 is connected to the crash box 30 of the rear anti-collision beam.

The second end 102 is provided with a first through hole 1021, the inner panel main body 201 located at the second end 102 is provided with a second through hole 2011, the first through hole 1021 and the second through hole The position of the hole 2011 corresponds to that the tow hook threaded pipe 50 passes through the first through hole 1021 and the second through hole 2011, and the diameters of the first through hole 1021 and the second through hole 2011 can be equal , and greater than the diameter of the tow hook threaded pipe 50 .

The rear anti-collision beam energy-absorbing box 30 includes a rear anti-collision beam energy-absorbing box upper plate 301 and a rear anti-collision beam energy-absorbing box lower plate 302, and the two ends of the rear anti-collision beam energy-absorbing box upper plate 301 are respectively connected to The rear anti-collision beam installation plate 40 is connected to the rear anti-collision beam inner panel 20, and the two ends of the rear anti-collision beam energy-absorbing box lower plate 302 are connected to the rear anti-collision beam installation plate 40 and the rear anti-collision beam installation plate 40 and the rear anti-collision beam respectively. The rear anti-collision beam inner panel 20 is connected. The energy absorbing box 30 of the rear anti-collision beam is used to absorb the energy generated during the collision.

The rear anti-collision beam installation plate 40 includes an installation main board part 401 and a side flange 402 bent and extended along one side of the installation main board part 401, and the side flange 402 and the installation main board part 401 are both connected to the installation board part 401. The above-mentioned rear anti-collision beam crash box 30 is connected. Specifically, the side flange 402 and the installation main board part 401 can be respectively connected to the rear anti-collision beam crash box 30 by welding, which can optimize the process structure and reduce the difficulty of assembly.

In this embodiment, the mounting plate part 401 is provided with several ribs 403 to improve the strength of the rear anti-collision beam mounting plate 40, and at the same time, the mounting plate part 401 is provided with several second weight-reducing holes 404 , to reduce weight.

According to the automobile rear anti-collision beam assembly proposed by the present invention, when the vehicle collides, the rear anti-collision beam outer panel 10 will be deformed first, and then the impact force will be transmitted to the rear anti-collision beam inner panel 20 and the rear anti-collision beam suction. On the energy box 30, the rear anti-collision beam energy-absorbing box 30 undergoes plastic deformation through the collapse of the energy-absorbing tendons to absorb the energy generated by the collision of the car, and in the rear anti-collision beam assembly of the automobile, except for the rear anti-collision beam energy-absorbing box 30, because the cross-section of the rear anti-collision beam outer panel 10 is U-shaped, and the rear anti-collision beam inner panel 20 is installed in the U-shaped cavity of the rear anti-collision beam outer panel 10, the rear anti-collision beam The inner panel 20 can absorb the impact force generated after the collision of the rear part of the vehicle body, further enhance the energy absorption effect, and improve the anti-collision effect; Plate 20, rear anti-collision beam energy-absorbing box 30 and rear anti-collision beam installation plate 40 have a simpler structure and are easier to assemble; in addition, by setting the tow hook threaded pipe 50 at the second end 102 of the rear anti-collision beam outer panel 10 , the rear anti-collision beam assembly of the automobile can be provided with a trailer function, the use space of the rear anti-collision beam assembly is fully utilized, the body structure is optimized, and the functionality of the rear anti-collision beam assembly of the automobile is improved.

The second embodiment of the present invention proposes a kind of automobile, and this automobile comprises at least the automobile rear anti-collision beam assembly of the first embodiment, the anti-rear collision effect of the automobile adopting this kind of automobile rear anti-collision beam assembly is better, and the structure Simple, easy to assemble and more functional.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above-mentioned embodiments only express several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but should not be construed as limiting the patent scope of the present invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (10)

1. A rear anti-collision beam assembly for an automobile, comprising a rear anti-collision beam outer plate, characterized in that, the rear anti-collision beam outer plate is in the shape of a strip with openings at both ends, and the rear anti-collision beam outer plate The cross-section is U-shaped, and the outer plate of the rear anti-collision beam has a first end and a second end oppositely arranged, and the first end and the second end are provided with a rear anti-collision beam inner plate, a rear anti-collision beam energy-absorbing box and a rear anti-collision beam installation plate, the rear anti-collision beam inner panel is installed in the U-shaped cavity of the rear anti-collision beam outer panel, and the rear anti-collision beam inner panel is installed in the Between the outer panel of the rear anti-collision beam and the energy-absorbing box of the rear anti-collision beam, the energy-absorbing box of the rear anti-collision beam is installed between the installation plate of the rear anti-collision beam and the inner panel of the rear anti-collision beam, The second end is provided with a tow hook threaded pipe, and the tow hook threaded pipe is respectively connected with the outer panel of the rear anti-collision beam and the inner panel of the rear anti-collision beam at the second end. 2. The automobile rear anti-collision beam assembly according to claim 1, wherein the inner panel of the rear anti-collision beam comprises a main body of the inner panel, and supports vertically extending from both ends of the main body of the inner panel part, and a welding edge extending vertically from one end of the supporting part facing away from the main body of the inner panel, the welding edge is connected to the outer panel of the rear anti-collision beam, and the main body of the inner panel is connected to the rear Anti-collision beam crash box connection. 3. The automobile rear anti-collision beam assembly according to claim 2, wherein the second end is provided with a first through hole, and the main body of the inner panel located at the second end is provided in the second through hole. holes, the positions of the first through hole and the second through hole are corresponding, and the tow hook threaded pipe passes through the first through hole and the second through hole. 4. The automobile rear anti-collision beam assembly according to claim 1, wherein the rear anti-collision beam energy-absorbing box comprises a rear anti-collision beam energy-absorbing box upper plate and a rear anti-collision beam energy-absorbing box lower plate , the two ends of the upper plate of the rear anti-collision beam energy-absorbing box are connected to the rear anti-collision beam installation plate and the rear anti-collision beam inner plate respectively, and the two ends of the lower plate of the rear anti-collision beam energy-absorbing box The ends are respectively connected with the rear anti-collision beam mounting plate and the rear anti-collision beam inner panel. 5. The automobile rear anti-collision beam assembly according to claim 1, characterized in that, the rear anti-collision beam installation plate includes a main board part and a side flange extended along one side of the main board part , both the side flange and the installation main board part are connected to the rear anti-collision beam crash box. 6 . The automobile rear anti-collision beam assembly according to claim 5 , characterized in that, the side flange and the installation main board are respectively connected to the rear anti-collision beam crash box by welding. 7 . 7. The automobile rear anti-collision beam assembly according to claim 5, characterized in that, several ribs and several second weight-reducing holes are provided on the mounting main board. 8. The automobile rear anti-collision beam assembly according to claim 1, characterized in that, a plurality of first lightening holes are opened on the outer panel of the rear anti-collision beam. 9. The automobile rear anti-collision beam assembly according to claim 1, characterized in that, the tow hook threaded pipe is welded to the outer plate of the rear anti-collision beam and the rear anti-collision beam at the second end. The inner panel of the impact beam is connected, and the mounting plate of the rear anti-collision beam is connected with the energy-absorbing box of the rear anti-collision beam through welding. 10. An automobile, characterized by comprising the automobile rear anti-collision beam assembly according to any one of claims 1 to 9.