Front roof cross beam assembly structure of vehicle and vehicle

Abstract

The application discloses a front roof cross beam assembly structure of a vehicle and the vehicle and belongs to the field of vehicles.The assembly structure comprises a first front roof cross beam, a second front roof cross beam and a third front roof cross beam, the second front roof cross beam comprises a support structure and a cross beam structure, the first front roof cross beam, the third front roof cross beam and the cross beam structure form a cavity, the support structure extends into the cavity and is connected with the third front roof cross beam, the support structure is connected with the first front roof cross beam through a first connecting surface, and the support structure is connected with the third front roof cross beam through a second connecting surface.The beneficial effect of the application is that the strength and modal of the front roof cross beam can be improved, the modal is the inherent vibration characteristic of a structural system, the deformation of a passenger cabin is avoided, the cost is reduced, and the weight of the assembly structure is reduced.

Description

Technical Field

[0001] This invention relates to the automotive field, specifically to a front roof beam assembly structure and vehicle. Background Technology

[0002] When a vehicle rolls over or is subjected to roof compression, the front roof beam assembly needs to provide sufficient strength to ensure the safety of the occupants. In addition, the structure of the front roof beam assembly also has a significant impact on NVH (Noise, Vibration, Harshness).

[0003] To improve the strength and modal characteristics (inherent vibration characteristics of the structural system) of the front roof crossbeam, most vehicles currently employ a structural approach that involves adding a roof crossbeam reinforcement between the inner and outer panels, or increasing the thickness of the inner and outer panels. The front crossbeam and reinforcement are often manufactured using thermoforming processes, resulting in higher costs and increased weight. Summary of the Invention

[0004] To overcome the shortcomings and deficiencies of existing technologies, this invention discloses a front roof crossbeam assembly structure for a vehicle. This structure improves the strength and modal characteristics of the front roof crossbeam while maintaining weight and cost, preventing passenger compartment deformation and thus reducing both cost and structural weight. The assembly structure includes a first front roof crossbeam, a second front roof crossbeam, and a third front roof crossbeam. The second front roof crossbeam includes a support structure and a crossbeam structure. The first front roof crossbeam, the third front roof crossbeam, and the crossbeam structure form a cavity. The support structure extends into the cavity and connects to the third front roof crossbeam.

[0005] The support structure is connected to the first front top beam through a first connecting surface, and the support structure is connected to the third front top beam through a second connecting surface.

[0006] Furthermore, a flow groove is provided at the first connecting surface, the flow groove is configured to cooperate with the first connecting surface, and the flow groove is provided with a plurality of flow holes for discharging gas from the cavity.

[0007] Furthermore, the second front top crossbeam is provided with a mounting base for mounting driver assistance devices.

[0008] Furthermore, the second front top crossbeam is provided with a first reinforcing rib.

[0009] Furthermore, the strength of the second front crossbeam structure is greater than or equal to the strength of the first front crossbeam structure 5, so that the second front top crossbeam can support the mounting base.

[0010] Furthermore, a second reinforcing rib is provided on the first front top crossbeam.

[0011] Furthermore, the supporting structure has a Z-shaped structure.

[0012] Furthermore, the first connecting surface is provided with a first weld point, and the first front top crossbeam is connected to the support structure through the first weld point; the second connecting surface is provided with a second weld point, and the second connecting surface is connected to the support structure through the second weld point.

[0013] On the other hand, this application also provides a vehicle that includes the front roof crossbeam assembly structure of a vehicle as described above.

[0014] Implementing this invention has the following beneficial effects:

[0015] This application separates the first front top crossbeam and the second front top crossbeam, and extends the support structure of the second front top crossbeam into the cavity as a support. This can improve the strength and modality of the assembly structure, prevent the passenger compartment from deforming when the vehicle rolls over or is subjected to top pressure, and improve safety performance. At the same time, it can also reduce costs, eliminating the need to use reinforcements to improve the strength of the assembly structure and reducing the weight of the assembly structure. Attached Figure Description

[0016] To more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the prior art front top crossbeam assembly provided in the embodiments of the present invention;

[0018] Figure 2 This is a sectional view of the front top crossbeam assembly provided in an embodiment of the present invention;

[0019] Figure 3 This is a structural schematic diagram of the front roof beam assembly provided in an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the beam structure provided in an embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the structure of the first front top transverse section provided in an embodiment of the present invention;

[0022] In the figure, the corresponding reference numerals are: 1-first front top crossbeam; 2-second front top crossbeam; 3-third front top crossbeam; 4-support structure; 5-crossbeam structure; 6-first connecting surface; 7-second connecting surface; 8-flow groove; 9-flow hole; 10-mounting base; 11-first reinforcing rib; 12-second reinforcing rib; 13-reinforcing member. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.

[0024] Reference Figure 1 The cavity is formed by the first front top crossbeam 1 and the third front top crossbeam 3. To enhance the strength and modality of the front top crossbeam assembly, a reinforcing member 13 is added between the first front top crossbeam 1 and the second front top crossbeam 2, or the material thickness of the first front top crossbeam 1 and the second front top crossbeam 2 is increased. The front crossbeams and the reinforcing member 13 are mostly produced using thermoforming processes, which results in higher costs and increased weight. In this embodiment, the technical problem to be solved by the present invention is to improve the strength and modality of the front top crossbeam, prevent passenger compartment deformation, reduce costs, and lighten the structural weight. In the prior art, referring to... Figure 2The assembly structure includes a first front top crossbeam 1, a second front top crossbeam 2, and a third front top crossbeam 3. The second front top crossbeam 2 includes a support structure 4 and a crossbeam structure 5. The first front top crossbeam 1, the third front top crossbeam 3, and the crossbeam structure 5 form a cavity. The support structure 4 extends into the cavity and connects to the third front top crossbeam 3. The support structure 4 is connected to the first front top crossbeam 1 through a first connecting surface 6, and the support structure 4 is connected to the third front top crossbeam 3 through a second connecting surface 7. The crossbeam structure 5 and the support structure 4 are integrally cast to form the second front top crossbeam 2. The second front top crossbeam 2 is connected to the first front top crossbeam 1 through the first connecting surface 6. It can be understood that in the first connecting surface 6, the first front top crossbeam 1 is located above the second front top crossbeam 2. The support structure 4 can provide support for the first front top crossbeam 1 and the crossbeam structure 5, improving the strength and moldability of the assembly structure. The second front top crossbeam 2's support structure 4 is inserted into the cavity and connected to the third front top crossbeam 3 via a second connecting surface 7. The second connecting surface can be located anywhere on the third front crossbeam. Preferably, since the cross section of the third front top crossbeam 3 is not straight but curved, the second connecting surface 7 is set at the point on the third front crossbeam furthest from the crossbeam structure 5. This ensures that the support structure 4 can play its maximum supporting role. The first front top crossbeam 1 and the second front top crossbeam 2 are separated, and the support structure 4 of the second front top crossbeam 2 is inserted into the cavity as a support. The process is simple, which can improve the strength and modality of the assembly structure, prevent the passenger compartment from deforming when the vehicle rolls over or is subjected to top pressure, improve safety performance, and also ensure cost reduction. There is no need to use reinforcing ribs to improve the strength of the assembly structure and reduce the weight of the assembly structure.

[0025] In one implementation, when the vehicle enters the electrophoretic pool at a certain angle, the rear of the assembly structure tilts downwards. At this time, air will be present in the highest point area of ​​the cavity, resulting in a lack of electrophoretic fluid in that area. Consequently, parts will lack a localized electrophoretic film, affecting their corrosion resistance. Therefore, it is necessary to remove the air from the highest point area of ​​the cavity, referring to... Figure 3 A flow groove 8 is provided at the first connecting surface 6. Specifically, the flow groove 8 is a rib groove with a certain strength. The rib groove is strip-shaped and is provided to match the first connecting surface 6. Its direction is consistent with the direction of the first connecting surface 6. The flow groove 8 is provided with multiple flow holes 9. The flow holes 9 are used to discharge the gas in the cavity. The setting of the rib groove ensures the strength of the assembly structure. If the flow holes 9 are directly set at the first connecting surface 6, the strength of the assembly structure will be weakened.

[0026] In one implementation, reference is made to Figure 4The second front top crossbeam 2 is provided with a mounting base 10, which is used to install an auxiliary driving device, including an autonomous driving detection device. The mounting base 10 is specifically a recessed platform structure. The auxiliary driving device is installed on the crossbeam structure 5 of the second front top crossbeam 2 through the recessed platform structure. The recessed platform structure can increase the local stiffness of the crossbeam structure 5, prevent the crossbeam structure 5 from deforming, and also improve the modal and stiffness of the installation area of ​​the autonomous driving detection device. In addition, since the installation of the autonomous driving detection device will increase the weight of the crossbeam structure 5, the support structure 4 supports the crossbeam structure 5, further preventing the crossbeam structure 5 from collapsing and improving driving safety.

[0027] In one embodiment, the second front top crossbeam 2 is provided with a plurality of first reinforcing ribs 11; the first front top crossbeam 1 is provided with second reinforcing ribs 12, and a mounting base 10 is installed on the second front top crossbeam 2. Therefore, the first reinforcing ribs 11 are distributedly installed on the crossbeam structure 5 of the second front top crossbeam 2. When the vehicle rolls over and is subjected to pressure on its top, the pressure-bearing part is the first front top crossbeam 1. Therefore, the first front top crossbeam 1 needs greater rigidity to prevent deformation. The second reinforcing ribs 12 are provided on the first front top crossbeam 1, as shown in the figure. Figure 5 The second reinforcing rib 12 is a continuous reinforcing rib, which is distributed all over the first front top beam 1. The continuous reinforcing rib may include multiple connected first reinforcing ribs 11. If the cost allows, the first reinforcing rib 11 or the second reinforcing rib 12 can also be provided on the support structure 4 to improve the strength, stiffness and modal characteristics of the assembly structure. The modal characteristics are the inherent vibration characteristics of the structural system.

[0028] In one embodiment, the strength of the second front crossbeam structure 5 is greater than or equal to the strength of the first front crossbeam structure 5, so that the second front top crossbeam 2 can support the mounting base 10. In specific implementation, the first front top crossbeam 1 and the second front top crossbeam 2 can be made of different materials or with different thicknesses. In some models without autonomous driving detection devices, the first front top crossbeam 1 and the second front top crossbeam 2 can be made of the same material, generally sheet metal, and the thickness can be the same. In models with autonomous driving detection devices, the thickness of both the first front top crossbeam 1 and the second front top crossbeam 2 can be increased to strengthen their strength. As a preferred embodiment, only the thickness of the second front top crossbeam 2 is increased, without increasing the thickness of the first front top crossbeam 1. The strength of the second front top crossbeam 2 is greater than that of the first front top crossbeam 1, which can reduce production costs and reduce the weight of the structure.

[0029] In one embodiment, the support structure 4 has a Z-shaped structure to form a first connecting surface 6 and a second connecting surface 7, increasing the connection area between the support structure 4 and the first front top crossbeam 1 and the third front top crossbeam 3. This allows the support structure 4 to more stably support the first front top crossbeam 1 and the second front top crossbeam 2, ensuring the safety of the assembly structure. Furthermore, the first front top crossbeam 1 is connected to the first connecting surface 6 by welding; the second connecting surface 7 is connected to the third front top crossbeam 3 by welding. Compared to adhesive bonding, welding offers longer-lasting durability, extending the connection time between the support structure 4 and the first and third front top crossbeams 1 and 3, and reducing subsequent maintenance workload and costs.

[0030] This embodiment also provides a vehicle that includes the aforementioned front roof crossbeam assembly structure.

[0031] Implementing this embodiment has the following effects:

[0032] 1. This application separates the first front top crossbeam and the second front top crossbeam, and extends the support structure of the second front top crossbeam into the cavity as a support. This can improve the strength and modality of the assembly structure, prevent the passenger compartment from deforming when the vehicle rolls over or is subjected to top pressure, and improve safety performance. It can also reduce costs, eliminate the need to use reinforcements to improve the strength of the assembly structure, and reduce the weight of the assembly structure.

[0033] 2. A rib groove is provided at the first connection surface, and a flow hole is provided on the rib groove. The flow hole is used to discharge the gas in the cavity and reduce the corrosion of the parts. The rib groove has a certain strength to avoid weakening the strength of the assembly structure due to the provision of the flow hole.

[0034] 3. A first reinforcing rib is installed on the second front top crossbeam to improve the strength, height, and modality of the assembly structure, so as to effectively prevent the deformation of the passenger compartment when the vehicle rolls over or is subjected to top pressure, thus ensuring the safety of the occupants.

[0035] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or server that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or devices.

[0036] The foregoing description has fully disclosed the specific embodiments of the present invention. It should be noted that any modifications made to the specific embodiments of the present invention by those skilled in the art do not depart from the scope of the claims. Accordingly, the scope of the claims is not limited to the foregoing specific embodiments.

Claims

1. A front roof crossbeam assembly structure for a vehicle, characterized in that, The system includes a first front top beam (1), a second front top beam (2), and a third front top beam (3). The second front top beam (2) includes a support structure (4) and a beam structure (5). The beam structure (5) and the support structure (4) are integrally cast to form the second front top beam (2). The first front top beam (1), the third front top beam (3), and the beam structure (5) form a cavity. The support structure (4) extends into the cavity and connects with the third front top beam (3). The support structure (4) is connected to the first front top beam (1) through the first connecting surface (6), and the support structure (4) is connected to the third front top beam (3) through the second connecting surface (7). The support structure (4) has a Z-shaped structure. The second front top beam (2) is provided with a first reinforcing rib (11), and multiple first reinforcing ribs (11) are distributed on the beam structure (5). The support structure (4) is provided with the first reinforcing ribs (11).

2. The front roof crossbeam assembly structure of a vehicle according to claim 1, characterized in that, A flow groove (8) is provided at the first connecting surface (6), the flow groove (8) is configured to cooperate with the first connecting surface (6), and a plurality of flow holes (9) are provided on the flow groove (8), the flow holes (9) are used to discharge the gas in the cavity.

3. The front roof crossbeam assembly structure of a vehicle according to claim 1, characterized in that, The second front top crossbeam (2) is provided with a mounting base (10), which is used to install an auxiliary driving device.

4. The front roof crossbeam assembly structure of a vehicle according to claim 3, characterized in that, The first front top crossbeam (1) is provided with a second reinforcing rib (12).

5. The front roof crossbeam assembly structure of a vehicle according to claim 1, characterized in that, The first connecting surface (7) is provided with a first weld point, and the first front top beam (1) is connected to the support structure (4) through the first weld point; the second connecting surface (7) is provided with a second weld point, and the second connecting surface (7) is connected to the support structure (4) through the second weld point.

6. A vehicle, characterized in that, The vehicle includes a front roof crossbeam assembly structure as described in any one of claims 1-5.

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