Vehicle rear anti-collision beam connecting structure assembly and vehicle

Abstract

The utility model discloses a vehicle rear anti-collision beam connecting structure assembly and a vehicle, the vehicle rear anti-collision beam connecting structure assembly comprises a rear anti-collision beam connecting structure, a die-casting rear floor (5), a rear wall assembly (6) and a rear anti-collision beam assembly (7), and the rear anti-collision beam connecting structure comprises a main body (1), an end plate reinforcing plate (2), a first connecting piece (3) and a second connecting piece (4); the main body (1) is made of aluminum alloy, and the main body (1) is fixedly connected with the die-casting rear floor (5) through a first bolt; and the rear anti-collision beam connecting structure is fixedly connected with the rear wall assembly (6) through welding. By means of the rear anti-collision beam connecting structure, force transmitted by the rear anti-collision beam can be well absorbed under the condition that a vehicle collides at a low speed, and therefore the maintenance cost of a floor after die casting is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of transportation tools, in particular to a connecting structure assembly of a vehicle rear anti-collision beam and a vehicle. Background Art

[0002] With the increasing development of vehicle technology and the growing demand for vehicle driving range, many automobile manufacturers consider adopting the technology of integrally die-casting the rear floor with aluminum alloy to improve the vehicle driving range. However, after a vehicle collision, the integrally die-cast aluminum alloy rear floor is prone to damage and the maintenance cost is high. Summary of the Utility Model

[0003] The purpose of this application is to provide a connecting structure assembly of a vehicle rear anti-collision beam and a vehicle that can reduce the maintenance cost after a vehicle collision.

[0004] This application discloses a connecting structure assembly of a vehicle rear anti-collision beam. The connecting structure assembly of the vehicle rear anti-collision beam includes a rear anti-collision beam connecting structure, a die-cast rear floor (5), a rear enclosure assembly (6), and a rear anti-collision beam assembly (7); the rear anti-collision beam connecting structure includes a main body (1), an end plate reinforcing plate (2), a first connecting member (3), and a second connecting member (4); the main body (1) is fixedly connected to the die-cast rear floor (5) by a first bolt; the rear anti-collision beam connecting structure is fixedly connected to the rear enclosure assembly (6) by welding.

[0005] Further, the main body (1) includes an upper side surface, a lower side surface opposite to the upper side surface, an outer side surface, and an inner side surface opposite to the outer side surface; a partition is provided inside the main body (1) to form a "day"-shaped closed cross-section.

[0006] Further, first through holes (13, 14) are provided on the upper side surface and the inner side surface of the main body (1), and the first bolt is penetrated through the first through holes (13, 14) to fixedly connect the main body (1) to the die-cast rear floor (5).

[0007] Further, the first connecting member (3) includes a first connecting portion (32) and a first flanging (33) arranged perpendicular to each other. A first rivet (31) penetrates through the main body (1) and the first connecting portion (32) to fixedly connect the first connecting member (3) to the main body (1); the first connecting portion (32) is attached to the upper side surface and the inner side surface; the first flanging (33) is fixedly connected to the rear enclosure assembly (6) by welding.

[0008] Furthermore, the second connecting member (4) comprises a second connecting portion (42) and a second flange (43) which are arranged perpendicular to each other; a second bolt (41) passes through the main body (1) and the second connecting portion (42) to fix the second connecting member (4) to the main body (1); and the second connecting portion (42) is in contact with the lower side surface, the inner side surface and the outer side surface.

[0009] Furthermore, the second connecting member (4) further comprises a second flange (43) perpendicular to the lower side surface, the inner side surface and the outer side surface, and the second flange (43) is fixed to the rear enclosure assembly (6) by welding.

[0010] Furthermore, the end plate reinforcement plate (2) is arranged on the outer side surface, and the end plate reinforcement plate (2) is fixedly connected to the die-cast rear floor (5) via a third bolt (21).

[0011] Furthermore, the main body (1) is made of 6063-T6 aluminum alloy.

[0012] Furthermore, the rear enclosure assembly (6) and the rear anti-collision beam assembly (7) are fixedly connected by bolts.

[0013] Furthermore, the main body (1) and the end plate reinforcement plate (2) are connected by arc welding.

[0014] Furthermore, the first flange (33) is fixedly connected to the rear enclosure assembly (6) by spot welding.

[0015] Furthermore, the second flange (43) is fixedly connected to the rear enclosure assembly (6) by spot welding.

[0016] Furthermore, the main body (1) is obtained by an extrusion process.

[0017] The present application also discloses a vehicle, which includes the aforementioned vehicle rear anti-collision beam connection structure assembly.

[0018] Compared with the related art, the present application provides a rear anti-collision beam connection structure between the die-cast rear floor and the rear anti-collision beam, which can better absorb the force transmitted by the rear anti-collision beam in the event of a low-speed vehicle collision, thereby reducing the maintenance cost of the die-cast rear floor.

[0019] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the specification and, together with the description, serve to explain the principles of the specification.

[0021] Figure 1 This is a partial stereoscopic view of the rear anti-collision beam connection structure of this application.

[0022] Figure 2 This is a partial stereoscopic view of the rear anti-collision beam connection structure of the present application assembled on a vehicle.

[0023] Figure 3 It is a partial stereoscopic view of the main body in the rear anti-collision beam connection structure of the present application.

[0024] Figure 4 It is a partial stereoscopic view of the end plate reinforcement plate in the rear anti-collision beam connection structure of the present application.

[0025] Figure 5 It is a partial stereoscopic view of the first connecting member in the rear anti-collision beam connecting structure of the present application.

[0026] Figure 6 It is a partial stereoscopic view of the second connecting member in the rear anti-collision beam connecting structure of the present application.

[0027] Figure 7 This is a partial stereoscopic view from another angle of the rear anti-collision beam connection structure of the present application.

[0028] Figure 8 This is a partial stereoscopic view of the rear anti-collision beam connection structure of the present application assembled on a vehicle from another angle.

[0029] Fig. 9 This is a partial three-dimensional view of the rear anti-collision beam connection structure of the present application assembled on a vehicle from another angle.

[0030] Explanation of the reference numerals in the drawings: main body, 1; cavity structure in the main body, 11 and 12; first through hole, 13 and 14; reinforcing ribs, 15 and 16; end plate reinforcement plate, 2; third bolt, 21; fifth through hole, 22; first connecting member, 3; first rivet, 31; first connecting portion, 32; first flange, 33; sixth through hole, 34; second connecting member, 4; second bolt, 41; second connecting portion, 42; second flange, 43; seventh through hole, 44; die-cast rear floor, 5; rear surround assembly, 6; rear anti-collision beam assembly, 7. DETAILED DESCRIPTION

[0031] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this specification. Instead, they are merely examples of devices and methods consistent with some aspects of this specification as detailed in the appended claims.

[0032] The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. Unless otherwise defined, the technical terms or scientific terms used in this specification should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second" and similar words used in this specification and claims do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate a quantitative limit, but indicate the existence of one. "Multiple" or "several" means two or more. Unless otherwise specified, words such as "front", "rear", "lower" and / or "upper" are only for the convenience of explanation and are not limited to one position or one spatial orientation. Words such as "include" or "comprise" mean that the elements or objects appearing in front of "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, and can include electrical connections, whether direct or indirect.

[0033] The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit the present disclosure. The singular forms of "a", "the" and "the" used in this specification and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0034] In related technologies, aluminum alloy rear anti-collision beams are widely used in new energy vehicles due to their lightweight. Aluminum alloy rear anti-collision beam assemblies mostly adopt extrusion technology. The traditional connection method between the rear anti-collision beam and the connecting structure mostly adopts carbon dioxide welding. Due to the high brittleness and poor ductility of aluminum material, after high-temperature welding, the properties of the aluminum material substrate are damaged to varying degrees, affecting the connection performance and collision deformation stability.

[0035] To solve the above technical problems, Figure 1 and Figure 2 As shown, the present application provides a vehicle rear anti-collision beam connection structure, the vehicle includes a die-cast rear floor 5, a rear enclosure assembly 6 and a rear anti-collision beam assembly 7; the rear anti-collision beam connection structure includes a main body 1, an end plate reinforcement plate 2, a first connection member 3 and a second connection member 4; the end plate reinforcement plate 2 is arranged on a side surface of the main body 1, and the first connection member 3 and the second connection member 4 are both fixedly connected to the main body 1. In some embodiments of the present disclosure, the first connection member 3 is in contact with two side surfaces of the main body 1, and the second connection member 4 is in contact with three side surfaces of the main body 1.

[0036] like Figure 1 and Figure 3 As shown, the main body 1 includes an outer side surface c, an inner side surface d opposite to the outer side surface c, an upper side surface a, and a lower side surface b opposite to the upper side surface a. The interior of the main body 1 includes two cavity structures 11 and 12 in the vertical direction, and the cross-section main body thereof is a closed cross-section in the shape of a Chinese character 'Ri'. The material of the main body 1 is aluminum alloy and is obtained by an extrusion process. In some embodiments of the present disclosure, the material of the main body 1 is 6063-T6 aluminum alloy. As Figure 3 and Figure 7 shown, reinforcing ribs 15 and 16 may also be provided on the main body 1; the reinforcing ribs 15 and 16 can not only increase the structural strength of the main body 1 but also increase the area for fixedly connecting with the first connector. In some embodiments of the present disclosure, the reinforcing rib 15 is provided at the extension of the upper side surface a, and the reinforcing rib 16 is provided at the middle position of the inner side surface d. As Figure 3 and Figure 7 shown, a first through hole 13 may be provided on the upper side surface a of the main body 1, and a second through hole 14 may be provided on the inner side surface d of the main body 1. A first bolt (not shown in the figure) passes through the first through hole 13 and the second through hole 14 to fixedly connect the main body 1 and the die-cast rear floor 5. In some embodiments of the present disclosure, the number of the first through holes 13 is 3, and the number of the second through holes 14 is 4. However, the numbers of the first through hole 13 and the second through hole 14 are not specifically limited, and they can be adaptively increased or decreased according to actual needs.

[0037] As Figure 1 , Figure 3 and Figure 7 shown, a third through hole may also be provided on the upper side surface a of the main body 1 for riveting with the first connector 3. In some embodiments of the present disclosure, the number of the third through holes may be 4, among which 3 are provided on the upper side surface a and 1 is provided on the inner side surface d; however, the number of the third through holes is not specifically limited, and it can be adaptively increased or decreased according to actual needs.

[0038] As Figure 1 , Figure 3 and Figure 7 shown, fourth through holes may also be provided on the lower side surface b, the outer side surface c, and the inner side surface d of the main body 1 for bolt connection with the second connector 4. In some embodiments of the present disclosure, the number of the fourth through holes may be 6, among which 6 are respectively provided on the lower side surface b, the outer side surface c, and the inner side surface d; however, the number of the fourth through holes is not specifically limited, and it can be adaptively increased or decreased according to actual needs.

[0039] A plurality of other through holes may be provided on the side of the main body 1, which can be used to reduce the mass of the main body 1 without reducing the structural strength of the main body 1; at the same time, the through holes can also be used as avoidance holes. The number of through holes can be adaptively selected according to actual needs.

[0040] like Figure 1 and Figure 4 As shown, the end plate reinforcement plate 2 is a plate-like structure, and part of it is arranged to fit with the outer side surface c of the main body 1. The specific shape of the end plate reinforcement plate 2 is not limited, and it can be provided with a groove according to actual needs. The end plate reinforcement plate 2 and the main body 1 can be connected by welding. In addition, as Figure 4 and Fig. 9 As shown, a fifth through hole 22 may be further provided on the portion of the end plate reinforcement plate 2 that is not in contact with the outer side surface c of the main body 1, and the third bolt 21 is fixedly connected to the end plate reinforcement plate and the die-cast rear floor through the fifth through hole 22. The provision of the end plate reinforcement plate 2 enhances the structural strength of the rear anti-collision beam connection structure and the connection strength between the rear anti-collision beam connection structure and the die-cast rear floor, and better improves the deformation stability of the rear anti-collision beam connection structure during a low-speed collision of the vehicle.

[0041] like Figure 1 and Figure 5 As shown, the first connecting member 3 has a bent structure, which may be "L-shaped", that is, the two faces of the first connecting portion 32 included in the first connecting member 3 are perpendicular to each other, and they are respectively in contact with the upper side surface a and the inner side surface d of the main body 1. The first connecting portion 32 is provided with a sixth through hole 34 for bolt connection, and the sixth through hole 34 corresponds to the third through hole provided on the main body 1. In some embodiments of the present disclosure, the sixth through hole 34 includes: three through holes provided on the surface of the first connecting portion 32 in contact with the upper side surface a of the main body 1, and one through hole provided on the surface of the first connecting portion 32 in contact with the inner side surface d of the main body 1. As shown Figure 1 As shown, the first rivet 31 passes through the sixth through hole 34 provided on the first connecting portion 32 and the third through hole provided on the main body 1, and fixes the first connecting member 3 and the main body 1. In some embodiments of the present disclosure, the number of the first rivets 31 is 4, however, there is no specific limit to the number, and it can be adaptively selected according to actual needs. Figure 5 and Figure 8 As shown, the first connecting member 3 also includes a first flange 33 perpendicular to the first connecting portion 32 , and the first flange 33 is fixedly connected to the rear anti-collision beam connection structure and the rear enclosure assembly 6 by welding.

[0042] like Figure 1 and Figure 6As shown, the second connecting member 4 has a bent structure, which may be "U-shaped", that is, the two faces of the second connecting portion 42 included in the second connecting member 4 are parallel to each other and perpendicular to the other face. The second connecting portion 42 is in contact with the lower side b, the outer side c and the inner side d of the main body 1. The second connecting portion 42 is provided with a seventh through hole 44 for bolt connection, and the seventh through hole 44 corresponds to the fourth through hole provided on the main body 1. In some embodiments of the present disclosure, the seventh through hole 44 includes: two through holes provided on the surface where the second connecting portion 42 and the lower side b of the main body 1 are in contact, two through holes provided on the surface where the second connecting portion 42 and the inner side d of the main body 1 are in contact, and two through holes provided on the surface where the second connecting portion 42 and the outer side c of the main body 1 are in contact. As shown Figure 1 As shown, the second bolt 41 passes through the seventh through hole 44 provided on the second connecting portion 42 and the fourth through hole provided on the main body 1 to fix the second connecting member 4 and the main body 1. In some embodiments of the present disclosure, the number of the second bolts 41 is 6, however, there is no specific limit to the number, and it can be adaptively selected according to actual needs. Figure 6 and Figure 8 As shown, the second connecting member 4 also includes a second flange 43 perpendicular to the second connecting portion 42 , and the second flange 43 is fixedly connected to the rear anti-collision beam connection structure and the rear enclosure assembly 6 by welding.

[0043] In the present disclosure, the rear anti-collision beam assembly 7 is connected to the rear enclosure assembly 6 by bolts, and the rear anti-collision beam connection structure provided by the present disclosure is connected to the rear enclosure assembly 6 by welding, and the three form a stable triangular structure, which not only improves the structural strength, but also allows the rear anti-collision beam connection structure to better absorb the force exerted on the rear anti-collision beam when it is hit.

[0044] When the vehicle is hit, the first connecting member 3 and the second connecting member 4 will transfer the force from the rear anti-collision beam assembly 7 to the main body 1 of the rear anti-collision beam connection structure, causing the main body 1 to collapse; the rear anti-collision beam connection structure and the rear enclosure assembly 6 only need to be connected through fewer welding points, so the overall weight of the vehicle body can be reduced to achieve the purpose of lightweight, and at the same time, the stability of the main body 1 collapsing when it is hit can be improved; at the same time, the existence of the end plate reinforcement plate 2 can enhance the structural strength of the rear anti-collision beam connection structure and the connection strength between the rear anti-collision beam connection structure and the die-cast rear floor. In addition, the setting of the end plate reinforcement plate 2 can effectively prevent other components from shearing the main body 1 when the main body 1 collapses, further improving the stability of the main body 1 collapsing when it is hit. In addition, since the rear anti-collision beam connection structure is connected to the die-cast rear floor 5 by bolts, it can minimize the area of ​​damage to the die-cast rear floor 5 under low-speed collision, thereby reducing the maintenance cost of the die-cast rear floor. Similarly, since the rear anti-collision beam connection structure is connected to the die-cast rear floor 5 by bolts, the connection strength can be guaranteed and later maintenance and replacement can be facilitated.

[0045] Those skilled in the art will readily appreciate other embodiments of the specification after considering the specification and practicing the utility model claimed herein. The specification is intended to cover any variations, uses or adaptations of the specification that follow the general principles of the specification and include common knowledge or customary techniques in the art that are not claimed in the specification. The specification and examples are to be considered exemplary only, and the true scope and spirit of the specification are indicated by the following claims.

[0046] It should be understood that the present description is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present description is limited only by the appended claims.

[0047] The above description is only a preferred embodiment of this specification and is not intended to limit this specification. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this specification should be included in the scope of protection of this specification.

Claims

1. A vehicle rear anti-collision beam connection structure assembly, comprising: Rear anti-collision beam connection structure, die-cast rear floor (5), rear enclosure assembly (6) and rear anti-collision beam assembly (7), characterized in that the rear anti-collision beam connection structure includes a main body (1), an end plate reinforcement plate (2), a first connecting member (3) and a second connecting member (4); Wherein, the main body (1) is fixedly connected to the die-cast rear floor (5) by a first bolt; the rear anti-collision beam connection structure is fixedly connected to the rear enclosure assembly (6) by welding.

2. The vehicle rear anti-collision beam connection structure assembly according to claim 1, characterized in that: The main body (1) includes an upper side surface, a lower side surface opposite to the upper side surface, an outer side surface and an inner side surface opposite to the outer side surface; a partition is provided inside the main body (1) to form a "day"-shaped closed cross-section.

3. The vehicle rear anti-collision beam connection structure assembly according to claim 2, characterized in that: First through holes (13, 14) are provided on the upper side surface and the inner side surface of the main body (1), and the first bolt is passed through the first through holes (13, 14) to fixedly connect the main body (1) to the die-cast rear floor (5).

4. The vehicle rear anti-collision beam connection structure assembly according to claim 2, characterized in that: The first connecting member (3) includes a first connecting portion (32) and a first flanging (33) arranged perpendicular to each other. A first rivet (31) passes through the main body (1) and the first connecting portion (32) to fixedly connect the first connecting member (3) to the main body (1); the first connecting portion (32) is attached to the upper side surface and the inner side surface; the first flanging (33) is fixedly connected to the rear enclosure assembly (6) by welding.

5. The vehicle rear anti-collision beam connection structure assembly according to claim 2, characterized in that: The second connecting member (4) includes a second connecting portion (42) and a second flanging (43) arranged perpendicular to each other. A second bolt (41) passes through the main body (1) and the second connecting portion (42) to fixedly connect the second connecting member (4) to the main body (1); the second connecting portion (42) is attached to the lower side surface, the inner side surface and the outer side surface.

6. The vehicle rear anti-collision beam connection structure assembly according to claim 5, characterized in that: The second flanging (43) is perpendicular to the lower side surface, the inner side surface and the outer side surface, and the second flanging (43) is fixedly connected to the rear enclosure assembly (6) by welding.

7. The vehicle rear anti-collision beam connection structure assembly according to claim 2, characterized in that: The end plate reinforcement plate (2) is arranged on the outer side surface, and the end plate reinforcement plate (2) is fixedly connected to the die-cast rear floor (5) by a third bolt (21).

8. The vehicle rear anti-collision beam connection structure assembly according to claim 1, characterized in that: The material of the main body (1) is 6063-T6 aluminum alloy.

9. The vehicle rear anti-collision beam connection structure assembly according to claim 1, characterized in that: The rear enclosure assembly (6) is fixedly connected to the rear anti-collision beam assembly (7) by bolts.

10. A vehicle, characterized in that: The vehicle includes the vehicle rear anti-collision beam connection structure assembly according to any one of claims 1 to 9.

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