Aluminum alloy doorsill beam and automobile

Abstract

The embodiment of the utility model provides an aluminum alloy doorsill beam and an automobile, and relates to the technical field of automobile parts. The utility model provides an aluminum alloy doorsill beam. The aluminum alloy doorsill beam comprises a hollow beam body and a gas tank arranged in the beam body, the outer wall of the gas tank is connected with the inner wall of the beam body through a plurality of reinforcing ribs; the plurality of reinforcing ribs comprise a plurality of stress reinforcing ribs and a plurality of bearing reinforcing ribs; one surface of the outer wall of the beam body is a stress surface, one end of each stress reinforcing rib is connected with the inner wall of the corresponding stress surface of the beam body, the other end of each stress reinforcing rib is connected with the outer wall of the gas tank, and each stress reinforcing rib is perpendicular to the stress surface; the space between the stress face and the gas tank is a stress face corresponding area, the area, except the stress face corresponding area, between the beam body and the gas tank is a non-stress face corresponding area, and the multiple bearing reinforcing ribs are evenly distributed in the non-stress face corresponding area. The aluminum alloy doorsill beam has the characteristics of light weight, convenience in manufacturing and excellent deformation resistance.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically to an aluminum alloy door sill beam and an automobile. Background Technology

[0002] The traditional separate design of the vehicle door sill beam and gas tank leads to complex assembly processes, increases weight by 15%-20%, and poses a risk of leakage at the connection point. The welding process for steel gas tanks suffers from problems such as stress concentration in the welds and poor corrosion resistance.

[0003] In existing technologies, door sill beams and gas tanks are typically designed and manufactured separately. Door sill beams are primarily used in the vehicle body structure, providing support and protection; while gas tanks are used to store gas, such as in automotive brake air tanks. This separate design has several drawbacks, such as increasing the number of parts, assembly complexity, and overall vehicle weight, while also limiting the effective use of interior space. Traditional rectangular door sill beam cavities suffer from sharp corner stress concentration (stress concentration factor ≥ 2.1), and the gas tank mounting area lacks targeted reinforcement structures.

[0004] In view of this, this utility model is proposed. Utility Model Content

[0005] The purpose of this invention is to provide an aluminum alloy door sill beam and an automobile, which aims to improve at least one of the problems mentioned in the background art.

[0006] The embodiments of this utility model can be implemented as follows:

[0007] In the first aspect, this utility model provides an aluminum alloy door sill beam, including a hollow beam body and an air tank disposed inside the beam body.

[0008] The outer wall of the gas tank is connected to the inner wall of the beam by multiple reinforcing ribs;

[0009] Multiple reinforcing ribs include multiple load-bearing reinforcing ribs and multiple load-bearing reinforcing ribs;

[0010] One side of the outer wall of the beam is the stress-bearing surface. One end of each stress-bearing stiffener is connected to the inner wall of the corresponding stress-bearing surface of the beam, and the other end is connected to the outer wall of the gas tank. Each stress-bearing stiffener is perpendicular to the stress-bearing surface.

[0011] The space between the load-bearing surface and the gas tank is the load-bearing surface corresponding area. The area between the beam and the gas tank other than the load-bearing surface corresponding area is the non-load-bearing surface corresponding area. Multiple load-bearing reinforcing bars are evenly distributed in the non-load-bearing surface corresponding area.

[0012] In an optional embodiment, the gas tank is cylindrical, and the cross-section of the gas tank in the direction perpendicular to the length of the beam is circular. All the connection points of the reinforcing ribs to the gas tank are evenly distributed on the outer wall of the gas tank.

[0013] In an optional implementation, there are two reinforcing ribs, which are symmetrical about the center line of the gas tank.

[0014] In an optional implementation, each load-bearing reinforcing rib is located on a radial section of the gas tank.

[0015] In an optional implementation, there are four load-bearing reinforcing ribs.

[0016] In an optional embodiment, the inner wall of the beam has bends, and in the area corresponding to the non-stressed surface, each bend is provided with another load-bearing reinforcing rib.

[0017] In an optional embodiment, the thickness of each reinforcing rib is 1-3 mm, the wall thickness of the beam is 1-4 mm, and the wall thickness of the gas tank is 1-4 mm.

[0018] In an optional embodiment, the aluminum alloy sill beam also includes two plugs, which are respectively disposed at opposite ends of the gas tank for sealing the gas tank.

[0019] In an optional implementation, the plug is threaded to the inner wall of the gas cylinder.

[0020] Secondly, this utility model provides an automobile, including an aluminum alloy door sill beam as described in any of the foregoing embodiments.

[0021] The beneficial effects of the aluminum alloy door sill beam and automobile provided by this utility model embodiment include:

[0022] The aluminum alloy door sill beam provided in this embodiment is lightweight due to its aluminum alloy material. Integrating the door sill beam and air tank together simplifies the automotive assembly process and improves space utilization. In the aluminum alloy door sill beam structure provided in this embodiment, the specific arrangement of multiple reinforcing ribs, especially the load-bearing reinforcing ribs, allows the impact load to be effectively transferred through the air tank to the load-bearing reinforcing ribs and other areas of the beam when subjected to external impacts, giving the door sill beam excellent deformation resistance. Furthermore, this aluminum alloy door sill beam structure can be manufactured into an integrated structure through extrusion, which is convenient for manufacturing and produces a product with good performance that meets automotive usage requirements. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a structural schematic diagram of the aluminum alloy door sill beam provided in this embodiment;

[0025] Figure 2 This is a partial structural schematic diagram of the aluminum alloy door sill beam provided in this embodiment;

[0026] Figure 3 This is a schematic diagram of the aluminum alloy door sill beam provided in this embodiment, visible when its end face is directly opposite.

[0027] Figure 4 for Figure 3 Sectional view at point AA.

[0028] Icons: 100-Sill beam; 110-Beam body; 111-Strength-bearing surface; 112-Bend; 120-Gas tank; 130-Reinforcing rib; 131-Strength-bearing reinforcing rib; 132-Load-bearing reinforcing rib; 140-End plug. Detailed Implementation

[0029] The solutions and advantages are now clearer. The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0033] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0034] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0035] like Figures 1 to 4 As shown, this utility model embodiment provides an aluminum alloy door sill beam 100, including a hollow beam body 110 and an air tank 120 disposed inside the beam body 110.

[0036] The outer wall of the gas tank 120 is connected to the inner wall of the beam 110 by multiple reinforcing ribs 130;

[0037] The multiple reinforcing ribs 130 include multiple load-bearing reinforcing ribs 131 and multiple load-bearing reinforcing ribs 132;

[0038] One side of the outer wall of the beam 110 is the stress-bearing surface 111. One end of each stress-bearing reinforcing rib 131 is connected to the inner wall of the corresponding stress-bearing surface 111 of the beam 110, and the other end is connected to the outer wall of the gas tank 120. Each stress-bearing reinforcing rib 131 is perpendicular to the stress-bearing surface 111.

[0039] The space between the load-bearing surface 111 and the gas tank 120 is the area corresponding to the load-bearing surface 111. The area between the beam 110 and the gas tank 120 other than the area corresponding to the load-bearing surface 111 is the area corresponding to the non-load-bearing surface 111. Multiple load-bearing reinforcing ribs 132 are evenly distributed in the area corresponding to the non-load-bearing surface 111.

[0040] The aluminum alloy door sill beam 100 provided in this embodiment is lightweight due to its aluminum alloy material. Integrating the door sill beam 100 and the air tank 120 together simplifies the automotive assembly process and improves space utilization. In the structure of the aluminum alloy door sill beam 100 provided in this embodiment, the specific arrangement of multiple reinforcing ribs 130, especially the load-bearing reinforcing ribs 131, allows the load-bearing surface 111 to be effectively transferred through the air tank 120 to the load-bearing reinforcing ribs 132 and other areas of the beam body 110 when subjected to external impact, giving the door sill beam 100 excellent resistance to deformation. Furthermore, the aluminum alloy door sill beam 100 of this structure can be manufactured into an integrated structure through an extrusion process, which is convenient for manufacturing and produces a product with good performance that meets the needs of automotive use.

[0041] Optionally, the gas tank 120 is cylindrical, and the cross-section of the gas tank 120 in the direction perpendicular to the length of the beam 110 is circular. All the connection points of the reinforcing ribs 130 and the gas tank 120 are evenly distributed on the outer wall of the gas tank 120.

[0042] When subjected to internal and external pressures, the circular cross-section exhibits uniform distribution of circumferential and radial stresses, thus avoiding stress concentration in the beam 110 and reducing the risk of material fatigue.

[0043] Optionally, there are two reinforcing ribs 131, which are symmetrical about the center line of the gas tank 120.

[0044] The aforementioned arrangement of the reinforcing ribs 131 enables the beam 110 to withstand external impacts by uniformly transferring the stress to the load-bearing reinforcing ribs 132 via the air tank 120, thereby further improving the beam 110's resistance to deformation. It should be noted that the number of reinforcing ribs 131 can also be three or more, and the specific number can be adjusted according to actual needs.

[0045] Optionally, to ensure that the impact force or should be uniformly transmitted to the load-bearing reinforcing ribs 132, each load-bearing reinforcing rib 132 is located on a radial section of the gas tank 120.

[0046] Optionally, considering the lightweight nature of the material, and to ensure optimal strength of the sill beam 100, four load-bearing reinforcing ribs 132 are used. It should be noted that the number of load-bearing reinforcing ribs 132 can also be five or more, and the specific number can be adjusted according to actual needs.

[0047] Optionally, the inner wall of the beam 110 has a bend 112, and in the area corresponding to the non-stress surface 111, each bend 112 is provided with another load-bearing reinforcing rib 132.

[0048] When the inner wall of the beam 110 has a bend 112 (for example, when the cross section of the beam 110 is square), the stress distribution at the bend 112 is usually more concentrated. Therefore, setting a load-bearing reinforcing rib 132 at the bend 112 can avoid the stress concentration problem and further reduce the risk of material fatigue.

[0049] Optionally, taking into account the lightweight characteristics, in order to ensure that the threshold beam 100 has better strength, the thickness of each reinforcing rib 130 is 1-3mm, the wall thickness of the beam body 110 is 1-4mm, and the wall thickness of the gas tank 120 is 1-4mm.

[0050] Optionally, the aluminum alloy sill beam 100 also includes two plugs 140, which are respectively disposed at opposite ends of the gas tank 120 for sealing the gas tank 120.

[0051] Furthermore, the plug 140 is threadedly connected to the inner wall of the gas tank 120.

[0052] The aluminum alloy door sill beam 100 provided in this embodiment of the invention can be manufactured using an aluminum alloy extrusion molding process. For example, the aluminum alloy raw material is first heated to a certain temperature, and then extruded into the desired shape of the door sill beam 100 and the gas tank 120 integrated through an extrusion die. After extrusion molding, the structure undergoes subsequent treatments such as cooling, quenching, and stretching to improve its mechanical properties.

[0053] In summary, the aluminum alloy door sill beam 100 provided in this embodiment of the present invention is lightweight due to its aluminum alloy material. Integrating the door sill beam 100 and the air tank 120 together simplifies the automobile assembly process and improves space utilization. In the structure of the aluminum alloy door sill beam 100 provided in this embodiment, the specific arrangement of multiple reinforcing ribs 130, especially the load-bearing reinforcing ribs 131, allows the load-bearing surface 111 to be effectively transferred through the air tank 120 to the load-bearing reinforcing ribs 132 and other areas of the beam body 110 when subjected to external impact, thus giving the door sill beam 100 excellent resistance to deformation.

[0054] This invention also provides an automobile, including the aluminum alloy door sill beam 100 provided in this invention. This automobile is lighter than the same automobile with other door sill beams 100 installed.

[0055] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. An aluminum alloy door sill beam, characterized in that, It includes a hollow beam and a gas cylinder disposed within the beam. The outer wall of the gas tank is connected to the inner wall of the beam by multiple reinforcing ribs; The multiple reinforcing ribs include multiple load-bearing reinforcing ribs and multiple load-bearing reinforcing ribs; One side of the outer wall of the beam is a stress-bearing surface. One end of each stress-bearing reinforcing rib is connected to the inner wall of the beam corresponding to the stress-bearing surface, and the other end is connected to the outer wall of the gas tank. Each stress-bearing reinforcing rib is perpendicular to the stress-bearing surface. The space between the stress-bearing surface and the gas tank is the stress-bearing surface corresponding area. The area between the beam and the gas tank other than the stress-bearing surface corresponding area is the non-stress-bearing surface corresponding area. The multiple load-bearing reinforcing ribs are evenly distributed in the non-stress-bearing surface corresponding area.

2. The aluminum alloy door sill beam according to claim 1, characterized in that, The gas tank is cylindrical, and the cross-section of the gas tank in the direction perpendicular to the length of the beam is circular. All the connection points of the reinforcing ribs to the gas tank are evenly distributed on the outer wall of the gas tank.

3. The aluminum alloy door sill beam according to claim 2, characterized in that, The number of the reinforcing ribs is two, and the two reinforcing ribs are symmetrical about the center line of the gas tank.

4. The aluminum alloy door sill beam according to claim 2, characterized in that, Each of the load-bearing reinforcing ribs is located on a radial section of the gas tank.

5. The aluminum alloy door sill beam according to claim 4, characterized in that, The load-bearing reinforcing ribs consist of 4 pieces.

6. The aluminum alloy door sill beam according to claim 4, characterized in that, The inner wall of the beam has bends, and in the area corresponding to the non-stressed surface, each bend is provided with another load-bearing reinforcing rib.

7. The aluminum alloy door sill beam according to claim 1, characterized in that, The thickness of each of the reinforcing ribs is 1-3 mm, the wall thickness of the beam is 1-4 mm, and the wall thickness of the gas tank is 1-4 mm.

8. The aluminum alloy door sill beam according to claim 1, characterized in that, The aluminum alloy sill beam also includes two plugs, which are respectively disposed at opposite ends of the gas tank to seal the gas tank.

9. The aluminum alloy door sill beam according to claim 8, characterized in that, The plug is threadedly connected to the inner wall of the gas tank.

10. A car, characterized in that, Including the aluminum alloy door sill beam as described in any one of claims 1 to 9.

Images