Anti-collision beam structure and vehicle having the same

Abstract

The application relates to a kind of anti-collision beam structures and vehicles with same, the anti-collision beam structure includes: anti-collision beam;Energy-absorbing box assembly, energy-absorbing box assembly is used to be connected with the vehicle body, energy-absorbing box assembly includes energy-absorbing box and transition connecting piece, at least part of transition connecting piece is arranged between energy-absorbing box and anti-collision beam, transition connecting piece is connected with energy-absorbing box, and transition connecting piece is connected between anti-collision beam by fastener.The anti-collision beam structure of the application solves the technical problem that the connection effect between the anti-collision beam and energy-absorbing box of the anti-collision beam structure in the related art is poor.

Description

Technical Field

[0001] This application relates to the field of vehicle design technology, and in particular to a crash beam structure and a vehicle having the same. Background Technology

[0002] As a key component of a vehicle's passive safety system, the anti-collision beam structure is an important vehicle safety device. When a vehicle collides with an external object, the anti-collision beam structure can absorb and disperse the collision energy, thereby reducing the injury to the vehicle and its passengers.

[0003] The crash beam structure in related technologies includes a crash beam (main beam) and an energy-absorbing box, which are directly connected by welding. This structural design is prone to deformation at the welding point during the welding process, leading to problems such as non-standard crash beam structure, localized stress concentration after installation, and even affecting the crash protection performance of the structure. Furthermore, when the crash beam is made of materials with poor weldability, insufficient connection strength between the crash beam and the energy-absorbing box can also occur.

[0004] It is evident that the anti-collision beam structure in the relevant technology suffers from a poor connection between the anti-collision beam and the energy-absorbing box, and no effective solution has yet been proposed to address this issue.

[0005] The information disclosed in the background section is only intended to enhance the understanding of the background art described herein. Therefore, the background art may contain information that would not be considered part of the prior art by those skilled in the art. Utility Model Content

[0006] This application provides a crash beam structure and a vehicle having the same, to solve the technical problem of poor connection between the crash beam and the energy-absorbing box in related art crash beam structures.

[0007] To achieve the above objectives, according to a first aspect of this application, a crash beam structure is provided, comprising: a crash beam; an energy-absorbing box assembly for connection to the vehicle body, the energy-absorbing box assembly including an energy-absorbing box and a transition connector, at least a portion of the transition connector being disposed between the energy-absorbing box and the crash beam, the transition connector being connected to the energy-absorbing box, and the transition connector being connected to the crash beam by fasteners.

[0008] Optionally, the transition connector includes a main body and an auxiliary connector, which are in contact with different surfaces of the anti-collision beam; the fasteners include a first fastener and a second fastener, with the main body connected to the anti-collision beam via the first fastener and the auxiliary connector connected to the anti-collision beam via the second fastener.

[0009] Optionally, there are two auxiliary connecting parts, with the main body located between the two auxiliary connecting parts. A groove is formed between the main body and the two auxiliary connecting parts, and at least a portion of the anti-collision beam is embedded in the groove. The two auxiliary connecting parts and the two opposite surfaces of the anti-collision beam are in contact and engaged.

[0010] Optionally, the first fastener is a bolt and the second fastener is a rivet.

[0011] Optionally, the energy-absorbing box assembly includes: a connector, which connects to the energy-absorbing box and is used to mate with the vehicle body so that the anti-collision beam structure is connected to the vehicle body via the connector.

[0012] Optionally, at least a portion of the energy-absorbing box is located between the transition connector and the connecting seat. When the anti-collision beam structure is impacted, the energy-absorbing box can undergo compressive deformation to bring the transition connector and the connecting seat closer together.

[0013] Optionally, the transition connector includes a first flange extending toward the energy-absorbing box, the first flange being inserted into the energy-absorbing box, and the insertion point of the first flange and the energy-absorbing box being welded; and / or, the connector is provided with a second flange extending toward the energy-absorbing box, the second flange being inserted into the energy-absorbing box, and the insertion point of the second flange and the energy-absorbing box being welded.

[0014] Optionally, the anti-collision beam has a hollow structure, and a support part is provided inside the anti-collision beam. The support part is in contact with two opposing inner wall surfaces inside the anti-collision beam. At least part of the support part is arched in shape; and / or, at least part of the energy-absorbing box has an opening at its edge, which can be deformed by compression when the anti-collision beam structure is impacted.

[0015] Optionally, the anti-collision beam is made of aluminum alloy or steel, and at least part of the energy-absorbing box assembly is made of steel or aluminum alloy; and / or, there are multiple energy-absorbing box assemblies, which are arranged sequentially at intervals along the length of the anti-collision beam.

[0016] According to a second aspect of this application, a vehicle is also provided, the vehicle including the aforementioned anti-collision beam structure.

[0017] The anti-collision beam structure of this application embodiment includes: an anti-collision beam; and an energy-absorbing box assembly for connection to the vehicle body. The energy-absorbing box assembly includes an energy-absorbing box and a transition connector. At least a portion of the transition connector is disposed between the energy-absorbing box and the anti-collision beam. The transition connector is connected to the energy-absorbing box and to the anti-collision beam via fasteners. This anti-collision beam structure employs a transition connector that is connected to the energy-absorbing box and to the anti-collision beam via fasteners. Thus, by using the transition connector as an intermediate connector, an indirect connection is achieved between the anti-collision beam and the energy-absorbing box. No welding is required between the anti-collision beam and the energy-absorbing box, thereby avoiding welding deformation of the anti-collision beam and poor connection between the anti-collision beam and the energy-absorbing box due to poor welding of the materials. This solves the technical problem of poor connection between the anti-collision beam and the energy-absorbing box in related art anti-collision beam structures. Furthermore, since energy-absorbing boxes absorb collision energy through deformation, their structural strength is typically low. If the energy-absorbing box is directly connected to the crash beam using bolts or other fasteners, the connection point between the energy-absorbing box and the bolts is prone to tearing due to stress concentration during a collision. This embodiment of the application, by providing a transition connector, can both withstand the collision force and stably transmit it. Compared to directly connecting the energy-absorbing box to the crash beam, this method can distribute the collision force more evenly to the energy-absorbing box, reducing the risk of uneven stress and tearing at the connection point.

[0018] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0021] Figure 1 This is a schematic diagram of the anti-collision beam structure according to an embodiment of this application from a first-view perspective;

[0022] Figure 2 This is a schematic diagram of the anti-collision beam structure according to an embodiment of this application from a second perspective;

[0023] Figure 3 This is a schematic diagram of the anti-collision beam structure according to an embodiment of this application from a third-person perspective;

[0024] Figure 4 This is a schematic diagram of the energy-absorbing box assembly of the anti-collision beam structure according to an embodiment of this application;

[0025] Figure 5 This is a schematic diagram of the energy-absorbing box of the anti-collision beam structure according to an embodiment of this application from one view.

[0026] Figure 6 This is a schematic diagram of the energy-absorbing box of the anti-collision beam structure according to an embodiment of this application from another perspective;

[0027] Figure 7 This is a schematic diagram of the transition connector of the anti-collision beam structure according to an embodiment of this application;

[0028] Figure 8 This is a schematic diagram of the connecting seat of the anti-collision beam structure according to an embodiment of this application.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Anti-collision beam; 11. Support unit;

[0031] 2. Energy-absorbing box assembly; 21. Energy-absorbing box; 211. Opening; 22. Transition connector; 221. Main body; 222. Auxiliary connector; 223. Groove; 224. First flange; 23. Connecting seat; 231. Second flange;

[0032] 10. First fastener; 20. Second fastener; 30. Weld. Detailed Implementation

[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0034] The structure of this application will be described in detail below with reference to the accompanying drawings.

[0035] See Figures 1 to 8 As shown, according to an embodiment of this application, a crash beam structure is provided, which includes: a crash beam 1; an energy-absorbing box assembly 2, the energy-absorbing box assembly 2 being used to connect to the vehicle body, the energy-absorbing box assembly 2 including an energy-absorbing box 21 and a transition connector 22, at least a portion of the transition connector 22 being disposed between the energy-absorbing box 21 and the crash beam 1, the transition connector 22 being connected to the energy-absorbing box 21, and the transition connector 22 being connected to the crash beam 1 by fasteners.

[0036] The anti-collision beam structure employs a transition connector 22, which connects to the energy-absorbing box 21 and is also connected to the anti-collision beam 1 via fasteners. This intermediate connector 22 indirectly connects the anti-collision beam 1 and the energy-absorbing box 21, eliminating the need for welding. This avoids welding deformation of the anti-collision beam 1 and poor connection between the anti-collision beam 1 and the energy-absorbing box 21 due to poor welding materials, thus solving the technical problem of poor connection between the anti-collision beam and the energy-absorbing box in related technologies. Furthermore, since the energy-absorbing box 21 absorbs collision energy through deformation, its structural strength is typically low. If the energy-absorbing box 21 is directly connected to the anti-collision beam via bolts or other fasteners, stress concentration at the bolt connection point during a collision can easily lead to tearing. In this embodiment, by setting a transition connector 22, the collision force can be borne and stably transmitted. Compared with directly connecting the energy-absorbing box 21 to the anti-collision beam 1, the collision force can be transmitted to the energy-absorbing box 21 more evenly, reducing the risk of uneven force on the energy-absorbing box 21 and tearing at the connection.

[0037] In this embodiment, the transition connector 22 includes a body portion 221 and an auxiliary connecting portion 222, which are in contact with the anti-collision beam 1 from different sides. The fasteners include a first fastener 10 and a second fastener 20. The body portion 221 is connected to the anti-collision beam 1 via the first fastener 10, and the auxiliary connecting portion 222 is connected to the anti-collision beam 1 via the second fastener 20. In this embodiment, the first fastener 10 connects the body portion 221 to the anti-collision beam 1, and the second fastener 20 connects the auxiliary connecting portion 222 to the anti-collision beam 1, effectively improving the connection strength between the transition connector 22 and the anti-collision beam 1. In particular, the different contact between the body portion 221 and the auxiliary connecting portion 222 and the anti-collision beam 1 allows for fastening in different directions after the first fastener 10 and the second fastener 20 are installed, ensuring a reliable connection between the anti-collision beam 1 and the energy-absorbing box assembly 2 in different directions.

[0038] Specifically, in order to further improve the reliability of the connection between the anti-collision beam 1 and the energy-absorbing box assembly 2, in this embodiment, there are two auxiliary connection parts 222, the main body 221 is located between the two auxiliary connection parts 222, the main body 221 and the two auxiliary connection parts 222 form a groove 223, at least a portion of the anti-collision beam 1 is embedded in the groove 223, and the two auxiliary connection parts 222 are in contact with the two opposite surfaces of the anti-collision beam 1.

[0039] In this embodiment, the first fastener 10 is a bolt, and the second fastener 20 is a rivet. Figure 1 and Figure 2 As shown, after the bolts are installed in place, they can withstand tensile force along their axial direction, pressing and fixing the transition connector 22 to the anti-collision beam 1. Based on this, rivets can be used to easily fix the auxiliary connector 222 to the anti-collision beam 1. The rivets act as an auxiliary connection, reducing the relative twisting or swaying between the anti-collision beam 1 and the transition connector 22, making the connection between the anti-collision beam 1 and the transition connector 22 more stable and reliable.

[0040] In some optional embodiments, the energy-absorbing box assembly 2 includes a connecting seat 23, which is connected to the energy-absorbing box 21. The connecting seat 23 is used to mate with the vehicle body so that the anti-collision beam structure is connected to the vehicle body via the connecting seat 23. By providing the connecting seat 23, the reliability of the connection between the connecting seat 23 and the vehicle body is improved, and the presence of the connecting seat 23 can also distribute the connection force between the energy-absorbing box 21 and the vehicle body more widely, reducing the risk of localized stress concentration and tearing when the energy-absorbing box 21 is connected to the vehicle body.

[0041] Specifically, at least a portion of the energy-absorbing box 21 is located between the transition connector 22 and the connecting seat 23. When the anti-collision beam structure is impacted, the energy-absorbing box 21 can undergo compressive deformation, causing the transition connector 22 and the connecting seat 23 to move closer together. When the anti-collision beam 1 is impacted, the impact force is transmitted to the energy-absorbing box 21 along the transition connector 22. The material of the energy-absorbing box 21 is relatively soft and more easily deformed compared to other components. During this process, the energy-absorbing box 21 is compressed, and the transition connector 22 and the connecting seat 23 move closer together, thereby absorbing the impact force through the energy-absorbing box 21 and reducing injury to other parts of the vehicle or occupants.

[0042] In practical implementation, the energy-absorbing box 21 and the transition connector 22 are preferably connected by welding, which makes the connection force more dispersed and reduces the risk of stress concentration at local connection points of the energy-absorbing box 21. Similarly, the energy-absorbing box 21 and the connecting seat 23 are preferably connected by welding.

[0043] like Figure 7 and Figure 8 As shown, in a preferred embodiment, the transition connector 22 includes a first flange 224, which extends toward the energy-absorbing box 21 and is inserted into the energy-absorbing box 21. The insertion point of the first flange 224 and the energy-absorbing box 21 is welded together. And / or, the connector 23 is provided with a second flange 231, which extends toward the energy-absorbing box 21 and is inserted into the energy-absorbing box 21. The insertion point of the second flange 231 and the energy-absorbing box 21 is welded together.

[0044] By providing the first flanging 224 and / or the second flanging 231, the first flanging 224 and / or the second flanging 231 can be in plug-in fit with the energy absorbing box 21, on this basis, welding operation is performed, and the energy absorbing box assembly 2 after welding completion is as shown in Figure 4 , Figure 4 the welded weld seam 30 is shown by the shaded area in the figure. After adopting the first flanging 224 and / or the second flanging 231, the situation of welding angular deformation can be effectively avoided, and the welding connection effect between the transition connecting piece 22 and / or the connecting seat 23 and the energy absorbing box 21 is ensured.

[0045] Please refer to Figure 3 , in this embodiment, the anti-collision beam 1 is a hollow structure, a supporting portion 11 is provided inside the anti-collision beam 1, the supporting portion 11 is in contact with two opposite inner wall surfaces inside the anti-collision beam 1, wherein at least part of the supporting portion 11 is arched in shape. By providing the arched supporting portion 11, the stress can be effectively balanced through the arched structure, and the load resistance of the anti-collision beam 1 is improved. On the basis of considering the weight of the anti-collision beam 1, the collision protection effect of the anti-collision beam 1 is effectively improved.

[0046] as shown in Figure 5 , in this embodiment, at least part of the edge of the energy absorbing box 21 is provided with an opening 211, when the anti-collision beam structure is impacted, the opening 211 can be deformed by extrusion. Through designing the opening 211, when the anti-collision beam structure is impacted, the opening 211 of the energy absorbing box 21 is more prone to collapse deformation due to its relatively weak structure, so as to absorb collision energy and reduce the transmission of collision force to the cockpit. As shown in Figure 6 , the energy absorbing box 21 of this embodiment is formed by winding a single metal plate, after one end of the metal plate is wound for one turn along a closed track, the inner wall of the metal plate itself is connected to form a Japanese-shaped structure, which improves the collision energy absorption effect on the basis of ensuring the structural simplicity and processing convenience of the energy absorbing box 21.

[0047] Specifically, the anti-collision beam is made of aluminum alloy or steel, and at least part of the material of the energy absorbing box assembly 2 is steel or aluminum alloy. In actual implementation, the materials of the anti-collision beam 1 and the energy absorbing box assembly 2 can be flexibly selected. Especially when the anti-collision beam 1 adopts a material with poor welding performance (such as 7-series aluminum alloy), the fastener connection between the transition connecting piece 22 and the anti-collision beam 1 can effectively avoid the problems of welding deformation and poor connection strength caused by poor welding performance. For example, the anti-collision beam 1 is made of aluminum alloy, preferably 7-series high-strength heat-treated aluminum alloy, so as to improve the strength of the anti-collision beam 1, but its welding performance is poor, and the transition connecting piece 22 and fasteners can be used to reliably connect it with the energy absorbing box 21. Part or all of the structure of the energy absorbing box assembly 2 can be aluminum alloy or steel. In another alternative embodiment, the anti-collision beam 1 can also be steel.

[0048] For example, while all-aluminum crash beams in related technologies are lightweight, they have lower strength. Using high-strength heat-treated aluminum alloys can lead to problems such as poor weldability, substandard weld joint strength, and insufficient weld deformation. While steel crash beams have significantly higher strength than aluminum alloys, their high density increases structural weight, limiting their widespread application, especially in weight-sensitive vehicles. In one optional embodiment, the crash beam 1 is made of 7-series high-strength heat-treated aluminum alloy, and some or all of the energy-absorbing box assembly 2 is made of steel or aluminum alloy. This avoids welding deformation and poor welding, allowing the crash beam structure to balance weight and strength.

[0049] In a preferred embodiment, there are multiple energy-absorbing box components 2, which are arranged sequentially and at intervals along the length of the anti-collision beam 1, thereby absorbing collision energy simultaneously through multiple energy-absorbing box components 2 and improving the collision protection effect of the anti-collision beam structure.

[0050] In addition, embodiments of this application also provide a vehicle that includes the aforementioned anti-collision beam structure.

[0051] Since the vehicle described above includes all the technical features of the anti-collision beam structure in the above embodiments, it also has all the technical effects corresponding to the anti-collision beam structure. Since the technical effects of the anti-collision beam structure have been described in detail above, they will not be repeated here.

[0052] Based on the above embodiments, it can be seen that the anti-collision beam structure of this application embodiment has at least the following technical effects:

[0053] The anti-collision beam structure of this application embodiment includes: anti-collision beam 1; energy-absorbing box assembly 2, which is used to connect with the vehicle body. The energy-absorbing box assembly 2 includes an energy-absorbing box 21 and a transition connector 22. At least a portion of the transition connector 22 is disposed between the energy-absorbing box 21 and the anti-collision beam 1. The transition connector 22 is connected to the energy-absorbing box 21, and the transition connector 22 is connected to the anti-collision beam 1 by fasteners. The anti-collision beam structure employs a transition connector 22, which connects to the energy-absorbing box 21 and is also connected to the anti-collision beam 1 via fasteners. This intermediate connector 22 indirectly connects the anti-collision beam 1 and the energy-absorbing box 21, eliminating the need for welding. This avoids welding deformation of the anti-collision beam 1 and poor connection between the anti-collision beam 1 and the energy-absorbing box 21 due to poor welding materials, thus solving the technical problem of poor connection between the anti-collision beam and the energy-absorbing box in related technologies. Furthermore, since the energy-absorbing box 21 absorbs collision energy through deformation, its structural strength is typically low. If the energy-absorbing box 21 is directly connected to the anti-collision beam via bolts or other fasteners, stress concentration at the bolt connection point during a collision can easily lead to tearing. In this embodiment, by setting a transition connector 22, the collision force can be borne and stably transmitted. Compared with directly connecting the energy-absorbing box 21 to the anti-collision beam 1, the collision force can be transmitted to the energy-absorbing box 21 more evenly, reducing the risk of uneven force on the energy-absorbing box 21 and tearing at the connection.

[0054] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0055] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0056] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0057] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A crash beam structure, characterized in that, include: Anti-collision beam (1); An energy-absorbing box assembly (2) is used to connect to the vehicle body. The energy-absorbing box assembly (2) includes an energy-absorbing box (21) and a transition connector (22). At least a portion of the transition connector (22) is disposed between the energy-absorbing box (21) and the anti-collision beam (1). The transition connector (22) is connected to the energy-absorbing box (21), and the transition connector (22) is connected to the anti-collision beam (1) by fasteners.

2. The anti-collision beam structure according to claim 1, characterized in that, The transition connector (22) includes a main body (221) and an auxiliary connector (222), wherein the main body (221) and the auxiliary connector (222) are in contact with the different faces of the anti-collision beam (1); The fasteners include a first fastener (10) and a second fastener (20). The main body (221) is connected to the anti-collision beam (1) via the first fastener (10), and the auxiliary connection part (222) is connected to the anti-collision beam (1) via the second fastener (20).

3. The anti-collision beam structure according to claim 2, characterized in that, There are two auxiliary connecting parts (222), and the main body (221) is located between the two auxiliary connecting parts (222). The main body (221) and the two auxiliary connecting parts (222) form a groove (223). At least a portion of the anti-collision beam (1) is embedded in the groove (223), and the two auxiliary connecting parts (222) and the two opposite surfaces of the anti-collision beam (1) are in contact and cooperate.

4. The anti-collision beam structure according to claim 2, characterized in that, The first fastener (10) is a bolt, and the second fastener (20) is a rivet.

5. The anti-collision beam structure according to claim 1, characterized in that, The energy-absorbing box assembly (2) includes: Connecting seat (23), the connecting seat (23) is connected to the energy-absorbing box (21), the connecting seat (23) is used to cooperate with the vehicle body so that the anti-collision beam structure is connected to the vehicle body through the connecting seat (23).

6. The anti-collision beam structure according to claim 5, characterized in that, At least a portion of the energy-absorbing box (21) is located between the transition connector (22) and the connecting seat (23). When the anti-collision beam structure is impacted, the energy-absorbing box (21) can undergo compression deformation to bring the transition connector (22) and the connecting seat (23) closer to each other.

7. The anti-collision beam structure according to claim 5, characterized in that, The transition connector (22) includes a first flange (224) extending toward the energy-absorbing box (21), the first flange (224) being inserted into the energy-absorbing box (21), and the insertion point between the first flange (224) and the energy-absorbing box (21) being welded; and / or, The connecting seat (23) is provided with a second flange (231), which extends toward the energy-absorbing box (21). The second flange (231) is inserted into the energy-absorbing box (21), and the insertion point between the second flange (231) and the energy-absorbing box (21) is welded.

8. The anti-collision beam structure according to any one of claims 1 to 7, characterized in that, The anti-collision beam (1) has a hollow structure, and a support part (11) is provided inside the anti-collision beam (1). The support part (11) is in contact with two opposing inner wall surfaces inside the anti-collision beam (1). At least a portion of the support part (11) is arched; and / or, The energy-absorbing box (21) has an opening (211) at at least part of its edge, and the opening (211) can be deformed by compression when the anti-collision beam structure is impacted.

9. The anti-collision beam structure according to any one of claims 1 to 7, characterized in that, The anti-collision beam is made of aluminum alloy or steel, and at least a portion of the energy-absorbing box assembly (2) is made of steel or aluminum alloy; and / or, There are multiple energy-absorbing box assemblies (2), and the multiple energy-absorbing box assemblies (2) are arranged at intervals along the length direction of the anti-collision beam (1).

10. A vehicle, characterized in that, The vehicle includes the anti-collision beam structure as described in any one of claims 1 to 9.

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