Aluminum alloy front cross beam and automobile

Abstract

The utility model relates to the technical field of automobiles, in particular to an aluminum alloy front cross beam and an automobile. Comprising a crossbeam member; the first connecting plate and the second connecting plate are used for being connected with the cross beam piece; the first connecting plate and the second connecting plate are connected with the two ends of the cross beam piece respectively in the length direction Y of the cross beam piece; wherein in the height direction Z of the cross beam piece, the cross beam piece is provided with a top surface and a bottom surface; the cross beam piece is provided with a front side face and a rear side face in the width direction X of the cross beam piece; the cross beam piece is of a hollow structure, and a first reinforcing rib is arranged in the cross beam piece; the first reinforcing ribs are arranged in the height direction Z of the cross beam piece, the upper ends of the first reinforcing ribs are connected with the top face, and the lower ends of the first reinforcing ribs are connected with the bottom face. And second reinforcing ribs are respectively arranged on the first connecting plate and the second connecting plate. According to the aluminum alloy front cross beam and the automobile, the pressure resistance and the NVH performance of the top cover front cross beam are improved.

Description

Technical Field

[0001] The present application relates to the technical field of automobiles, and particularly to an aluminum alloy front cross member and an automobile. Background Art

[0002] With the rapid development of new energy vehicles, the relevant national regulations and relevant testing institutions require continuous improvement and enhancement. Passengers also put forward relatively high requirements for the comfort inside the vehicle, and higher requirements for the body structure. Especially at the front cross member of the roof, this position is a key area for the roof crush test and is located directly above the front row passengers. The existing sheet metal stamping and welding front cross member of the roof has insufficient strength and stiffness, which will cause the following problems:

[0003] 1. It cannot pass the C-IASI roof crush test, and bending occurs during the roof cross member test;

[0004] 2. The NVH performance of the front cross member of the roof is poor, the modal stiffness is low, and the comfort of the front row passengers is poor. Utility Model Content

[0005] Based on this, it is necessary to provide an aluminum alloy front cross member and an automobile that can improve the compressive capacity and NVH performance of the front cross member of the roof.

[0006] An aluminum alloy front cross member, comprising:

[0007] A cross member, the cross member is of an aluminum alloy structure and has a height direction Z, a width direction X and a length direction Y;

[0008] A first connecting plate and a second connecting plate for connecting with the cross member; along the length direction Y of the cross member, the first connecting plate and the second connecting plate are respectively connected to both ends of the cross member;

[0009] Wherein, along the height direction Z of the cross member, the cross member has a top surface and a bottom surface; along the width direction X of the cross member, the cross member has a front side surface and a rear side surface; the cross member is a hollow structure, and a first reinforcing rib is arranged inside it; the first reinforcing rib is arranged along the height direction Z of the cross member, and the upper end of the first reinforcing rib is connected to the top surface, and the lower end is connected to the bottom surface;

[0010] Second reinforcing ribs are respectively arranged on the first connecting plate and the second connecting plate.

[0011] In one embodiment, a plurality of the first reinforcing ribs are provided, and the plurality of first reinforcing ribs are spaced apart along the width direction X of the cross member.

[0012] In one embodiment, the second reinforcing rib includes a transverse rib and a longitudinal rib, the longitudinal rib extends along the length direction Y of the cross member, the transverse rib extends along the width direction X of the cross member, and is cross-set with the longitudinal rib.

[0013] In one embodiment, a plurality of transverse ribs are provided and are spaced apart along the width direction X of the cross beam member on the first connecting plate and the second connecting plate; a plurality of longitudinal ribs are provided and are spaced apart along the length direction Y of the cross beam member on the first connecting plate and the second connecting plate.

[0014] In one embodiment, a first connecting portion is provided at one end of the cross beam member close to the first connecting plate, and a second connecting portion for cooperating and fixedly connecting with the first connecting portion is provided on the first connecting plate; a third connecting portion is provided at one end of the cross beam member close to the second connecting plate, and a fourth connecting portion for cooperating and fixedly connecting with the third connecting portion is provided on the second connecting plate.

[0015] In one embodiment, a first clamping groove is provided on the second connecting portion, and one end of the cross beam member provided with the first connecting portion is clamped in the first clamping groove; a second clamping groove is provided on the fourth connecting portion, and one end of the cross beam member provided with the third connecting portion is clamped in the second clamping groove.

[0016] In one embodiment, the cross beam member includes a main body, a first glue coating surface, and a second glue coating surface. The main body extends away from the front side surface towards the first extension portion on one side close to the front side surface, and the first glue coating surface is provided on the first extension portion; the main body extends away from the rear side surface towards the second extension portion on one side close to the rear side surface, and the second glue coating surface is provided on the second extension portion.

[0017] In one embodiment, the cross beam member further includes a decorative plate mounting surface, and the decorative plate mounting surface is provided at a position on the top surface close to the front side surface.

[0018] In one embodiment, the first clamping groove and the second clamping groove are respectively in clamping fit with the main body.

[0019] The present application also provides an automobile, including the aluminum alloy front cross beam according to any one of the above embodiments.

[0020] Compared with the prior art, the front cross beam of the present application is made of aluminum alloy, and connecting plates are respectively provided at both ends of the cross beam member to enhance the structural strength. Reinforcing ribs are provided on the cross beam member, the first connecting plate, and the second connecting plate, thereby greatly improving the pressure resistance of the front cross beam, meeting the requirement of the top pressure of 4 times the vehicle weight test by C-IASI, and improving the vehicle safety. Meeting the target value of the modal stiffness of the front cross beam proposed by NVH and improving the comfort of the front row passengers. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] To more clearly illustrate the technical solutions in the embodiments of the present application or in the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0022] Figure 1 Schematic diagram of the aluminum alloy front crossbeam structure provided by the present application.

[0023] Figure 2 For the main body provided by the present application along Figure 1 Cross-sectional view taken along line A-A in

[0024] Figure 3 Bottom view of the aluminum alloy front crossbeam provided by the present application.

[0025] Figure 4 Schematic diagram of the structure of the second reinforcing rib provided by the present application.

[0026] Figure 5 Exploded view of the aluminum alloy front crossbeam structure provided by the present application.

[0027] Reference numerals: 1, crossbeam member; 100, first reinforcing rib; 11, top surface; 12, bottom surface; 13, front side surface; 14, rear side surface; 15, first connecting portion; 16, third connecting portion; 101, main body; 102, first gluing surface; 103, second gluing surface; 104, first extending portion; 105, second extending portion; 107, trim mounting surface; 2, first connecting plate; 21, second connecting portion; 22, first card slot; 3, second connecting plate; 31, fourth connecting portion; 32, second card slot; 200, second reinforcing rib; 201, transverse rib; 202, longitudinal rib. Detailed implementation manners

[0028] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will give a detailed description of the specific implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein. Those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0029] It should be noted that when a component is referred to as "fixed to" or "disposed on" another component, it can be directly on the other component or there can also be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are only for illustrative purposes and do not represent the only implementation.

[0030] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of this application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0031] In this application, unless otherwise clearly specified and limited, the first feature may be in direct contact with the second feature "on" or "under" the second feature, or the first feature and the second feature may be in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature has a higher horizontal height than the second feature. The first feature being "below", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature has a lower horizontal height than the second feature.

[0032] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific implementations and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more of the related listed items.

[0033] Please refer to Figures 1 to 5 , this application provides an aluminum alloy front crossbeam, and the aluminum alloy front crossbeam includes a crossbeam member 1, a first connecting plate 2 and a second connecting plate 3. Specifically, the crossbeam member 1 is an aluminum alloy structure and has a height direction Z, a width direction X and a length direction Y. The first connecting plate 2 and the second connecting plate 3 are used to connect to the crossbeam member 1. Along the length direction Y of the crossbeam member 1, the first connecting plate 2 and the second connecting plate 3 are respectively connected to both ends of the crossbeam member 1. And second reinforcing ribs 200 are respectively provided on the first connecting plate 2 and the second connecting plate 3.

[0034] Among them, along the height direction Z of the crossbeam member 1, the crossbeam member 1 has a top surface 11 and a bottom surface 12. Along the width direction X of the crossbeam member 1, the crossbeam member 1 has a front side surface 13 and a rear side surface 14. The crossbeam member 1 is of a hollow structure, and a first reinforcing rib 100 is arranged inside it; the first reinforcing rib 100 is arranged along the height direction Z of the crossbeam member 1, and the upper end of the first reinforcing rib 100 is connected to the top surface 11, and the lower end is connected to the bottom surface 12.

[0035] It can be understood that the entire crossbeam body is of an aluminum alloy structure. Compared with the method of sheet metal stamping and welding, the stiffness and strength of the crossbeam member 1 can be improved, ensuring that the crossbeam member 1 will not bend during the insurance research roof pressure test. The first reinforcing rib 100 on the crossbeam member 1 and the second reinforcing rib 200 on the first connecting plate 2 and the second connecting plate 3 further improve the structural strength of the crossbeam member 1 and the connecting plate respectively, improve the pressure resistance of the front crossbeam, meet the requirements of the 4-fold vehicle weight test for the top pressure of the insurance research, and improve the vehicle safety. Meet the modal stiffness target value of the front crossbeam proposed by NVH and improve the comfort of the front row passengers.

[0036] In this embodiment, the aluminum alloy structure refers to being obtained by aluminum extrusion processing and being locally roll-bent according to the shape. Of course, in other embodiments, it can also be processed by the method of casting aluminum.

[0037] Furthermore, the first connecting plate 2 and the second connecting plate 3 are made of aluminum material, forming a complete aluminum alloy front crossbeam structure, which helps to continuously improve the stiffness and avoid bending in working conditions such as roof pressure and side impact.

[0038] In this embodiment, the first connecting plate 2 and the second connecting plate 3 are processed by the method of casting aluminum. Of course, in other embodiments, they can also be obtained by aluminum extrusion processing.

[0039] In one embodiment, the number of the first reinforcing ribs 100 is set to be multiple, and the multiple first reinforcing ribs 100 are spaced apart along the width direction X of the crossbeam member 1. The multiple first reinforcing ribs 100 can support the crossbeam member 1 at multiple points in the height direction Z, improve the overall strength of the cross-section, and make the crossbeam member 1 less likely to deform.

[0040] Exemplarily, the number of the first reinforcing ribs 100 can be set to 2, 3, 4, 5, 6, etc., and the specific value is selected according to actual needs.

[0041] Of course, it is not limited to this. In other embodiments, the first reinforcing rib 100 can also be set to only one.

[0042] Preferably, the length of the first reinforcing rib 100 is set to be equal to the length of the crossbeam member 1, that is, the crossbeam member 1 can be supported by the first reinforcing rib 100 throughout the length direction Y, ensuring the anti-bending ability of the crossbeam member 1 in the entire length direction Y.

[0043] In one embodiment, the second reinforcing rib 200 includes a transverse rib 201 and a longitudinal rib 202. Among them, the longitudinal rib 202 extends along the length direction Y of the crossbeam member 1, the transverse rib 201 extends along the width direction X of the crossbeam member 1, and is arranged crosswise with the longitudinal rib 202.

[0044] Exemplarily, the transverse rib 201 and the longitudinal rib 202 are arranged in a cross shape, and the supporting effect is better. A plurality of transverse ribs 201 and longitudinal ribs 202 together form a grid-shaped support net, providing support points for each position of the connecting plate.

[0045] Further, a plurality of transverse ribs 201 are provided, and are spaced along the width direction X of the crossbeam member 1 on the first connecting plate 2 and the second connecting plate 3. Exemplarily, the number of the transverse ribs 201 takes values such as 1, 2, 3, 4, etc., and can be specifically selected according to actual needs.

[0046] Further, a plurality of longitudinal ribs 202 are provided, and are spaced along the length direction Y of the crossbeam member 1 on the first connecting plate 2 and the second connecting plate 3. Exemplarily, the number of the longitudinal ribs 202 takes values such as 1, 2, 3, 4, etc., and can be specifically selected according to actual needs.

[0047] In one embodiment, a first connecting portion 15 is provided at one end of the crossbeam member 1 close to the first connecting plate 2, and a second connecting portion 21 for cooperating and fixedly connecting with the first connecting portion 15 is provided on the first connecting plate 2; a third connecting portion 16 is provided at one end of the crossbeam member 1 close to the second connecting plate 3, and a fourth connecting portion 31 for cooperating and fixedly connecting with the third connecting portion 16 is provided on the second connecting plate 3.

[0048] It can be understood that the crossbeam member 1 is connected to the first connecting plate 2 and the second connecting plate 3 through the cooperation of the connecting portions, and the connecting effect is better compared with the direct connection method.

[0049] Exemplarily, the second connecting portion 21 is a convex portion extending from the side of the first connecting plate 2 close to the crossbeam member 1, and the fourth connecting portion 31 is a convex portion extending from the side of the second connecting plate 3 close to the crossbeam member 1. The third connecting portion 16 is a convex portion formed by extending both ends of the crossbeam member 1 in the length direction Y. The above convex portions are all plate-shaped structures, which are convenient for connection.

[0050] Preferably, the fixed connection between the first connecting portion 15 and the second connecting portion 21 can be realized by means such as SPR (self-piercing riveting), FDS (hot melt self-tapping screw), bolts, etc. The fixed connection between the third connecting portion 16 and the fourth connecting portion 31 can be realized by means such as SPR (self-piercing riveting), FDS (hot melt self-tapping screw), bolts, etc.

[0051] In one embodiment, the crossbeam member 1 includes a main body 101, a first glue - applying surface 102, and a second glue - applying surface 103. Among them, a first extension portion 104 and a second extension portion 105 are formed by extending on the main body. The first glue - applying surface 102 and the second glue - applying surface 103 are respectively arranged on the first extension portion 104 and the second extension portion 105.

[0052] It can be understood that during installation, the front windshield can be installed on the first glue - applying surface 102, and the sunroof can be installed on the second glue - applying surface 103.

[0053] Among them, the main body 101 is a hollow structure, and the top surface 11, the bottom surface 12, the front side surface 13, and the rear side surface 14 mentioned above are the top surface 11, the bottom surface 12, the front side surface 13, and the rear side surface 14 of the main body.

[0054] Specifically, the first extension portion 104 is formed by extending from the side of the main body 101 close to the front side surface 13 in a direction away from the front side surface 13, and the first glue - applying surface 102 is arranged on the upper surface of the first extension portion 104. The second extension portion 105 is formed by extending from the side of the main body close to the rear side surface 14 in a direction away from the rear side surface 14, and the second glue - applying surface 103 is arranged on the upper surface of the second extension portion 105.

[0055] Preferably, the crossbeam member 1 further includes a trim - panel mounting surface 107. Exterior trim panels, exterior finish surfaces, etc. can be installed on the trim - panel mounting surface 107. Specifically, the trim - panel mounting surface 107 is arranged at a position on the top surface 11 close to the front side surface 13.

[0056] Furthermore, a first card slot 22 is provided on the second connection portion 21, and one end of the crossbeam member 1 provided with the first connection portion 15 is snapped into the first card slot 22. And preferably, the shape and size of the first card slot 22 are adapted to the shape and size of the end of the main body, and the end of the main body can be directly snapped into the first card slot 22.

[0057] Furthermore, a second card slot 32 is provided on the fourth connection portion 31, and one end of the crossbeam member 1 provided with the third connection portion 16 is snapped into the second card slot 32. And preferably, the shape and size of the second card slot 32 are adapted to the shape and size of the end of the main body, and the end of the main body can be directly snapped into the second card slot 32.

[0058] It can be understood that through the snap - fit between the crossbeam member 1 and the first card slot 22 and the second card slot 32, the connection area between the crossbeam member 1 and the connecting plate is increased. Compared with the way of directly welding only at the connection, the pressure - bearing strength of the connection can be improved to a greater extent.

[0059] Exemplarily, the wall thickness of the crossbeam member 1 is 2.5 mm - 4 mm, and the specific values can be 2.5 mm, 3 mm, 3.5 mm, 4 mm, etc. Of course, the corresponding values can also be selected according to the actual situation. The thicknesses of the first extension portion 104 and the second extension portion 105 extending from the crossbeam member 1 are also 2.5 mm - 4 mm. The specific values can be 2.5 mm, 3 mm, 3.5 mm, 4 mm, etc. Of course, the corresponding values can also be selected according to the actual situation.

[0060] Exemplarily, the thicknesses of the first connecting plate 2 and the second connecting plate 3 are set to 2.5 mm - 4 mm, and the specific values can be 2.5 mm, 3 mm, 3.5 mm, 4 mm, etc. Of course, the corresponding values can also be selected according to the actual situation.

[0061] This application also provides an automobile, including the aluminum alloy front crossbeam of any one of the above embodiments.

[0062] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0063] The above embodiments only represent several implementation manners of this application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of this application, several modifications and improvements can still be made, and these all belong to the protection scope of this application. Therefore, the patent protection scope of this application should be subject to the appended claims.

Claims

1. An aluminum alloy front crossbeam, characterized in that, Comprising: A crossbeam member (1), the crossbeam member (1) being an aluminum alloy structure, having a height direction Z, a width direction X, and a length direction Y; A first connecting plate (2) and a second connecting plate (3), for connecting with the crossbeam member (1); along the length direction Y of the crossbeam member (1), the first connecting plate (2) and the second connecting plate (3) are respectively connected to both ends of the crossbeam member (1); Wherein, along the height direction Z of the crossbeam member (1), the crossbeam member (1) has a top surface (11) and a bottom surface (12); along the width direction X of the crossbeam member (1), the crossbeam member (1) has a front side surface (13) and a rear side surface (14); the crossbeam member (1) is a hollow structure, and a first reinforcing rib (100) is provided inside thereof; the first reinforcing rib (100) is arranged along the height direction Z of the crossbeam member (1), and the upper end of the first reinforcing rib (100) is connected to the top surface (11), and the lower end is connected to the bottom surface (12); Second reinforcing ribs (200) are respectively provided on the first connecting plate (2) and the second connecting plate (3).

2. The aluminum alloy front cross member according to claim 1, characterized in that The first reinforcing ribs (100) are provided in multiple numbers, and the multiple first reinforcing ribs (100) are spaced apart along the width direction X of the crossbeam member (1).

3. The aluminum alloy front cross member according to claim 1, wherein The second reinforcing rib (200) includes a transverse rib (201) and a longitudinal rib (202), the longitudinal rib (202) extends along the length direction Y of the crossbeam member (1), the transverse rib (201) extends along the width direction X of the crossbeam member (1), and is arranged crosswise with the longitudinal rib (202).

4. The aluminum alloy front cross member according to claim 3, wherein, The transverse ribs (201) are provided in multiple numbers, and are spaced apart along the width direction X on the first connecting plate (2) and the second connecting plate (3); the longitudinal ribs (202) are provided in multiple numbers, and are spaced apart along the length direction Y on the first connecting plate (2) and the second connecting plate (3).

5. The aluminum alloy front cross member according to claim 1, characterized in that, One end of the crossbeam member (1) close to the first connecting plate (2) is provided with a first connecting portion (15), and the first connecting plate (2) is provided with a second connecting portion (21) that cooperates and is fixedly connected with the first connecting portion (15); one end of the crossbeam member (1) close to the second connecting plate (3) is provided with a third connecting portion (16), and the second connecting plate (3) is provided with a fourth connecting portion (31) that cooperates and is fixedly connected with the third connecting portion (16).

6. The aluminum alloy front cross member according to claim 5, characterized in that, A first card slot (22) is provided on the second connecting portion (21), and one end of the crossbeam member (1) provided with the first connecting portion (15) is clamped in the first card slot (22); a second card slot (32) is provided on the fourth connecting portion (31), and one end of the crossbeam member (1) provided with the third connecting portion (16) is clamped in the second card slot (32).

7. The aluminum alloy front crossbeam according to claim 6, wherein, The crossbeam member (1) includes a main body (101), a first glue application surface (102), and a second glue application surface (103). The main body extends away from the front side surface (13) on one side close to the front side surface (13) to form a first extension portion (104), and the first glue application surface (102) is provided on the first extension portion (104); the main body extends away from the rear side surface (14) on one side close to the rear side surface (14) to form a second extension portion (105), and the second glue application surface (103) is provided on the second extension portion (105).

8. The aluminum alloy front cross member according to claim 7, wherein, The crossbeam member (1) further includes a trim panel mounting surface (107), and the trim panel mounting surface (107) is provided at a position on the top surface (11) close to the front side surface (13).

9. The aluminum alloy front cross member according to claim 7, wherein, The first card slot (22) and the second card slot (32) are respectively in snap-fit connection with the main body (101).

10. A vehicle, characterized in that, It includes the aluminum alloy front crossbeam according to any one of the above claims 1-9.

Images