Automobile dashboard cross beam

Abstract

The utility model discloses an automobile dashboard cross beam, which belongs to automobile parts and comprises a support assembly integrally formed by plastic through injection molding, the support assembly comprises a main cross beam, the main cross beam comprises a main pipe of a circular pipe structure, a top plate and a bottom plate, the top plate and the bottom plate are arranged on the main pipe, and a plurality of reinforcing sheets are arranged between the top plate and the bottom plate. The adjacent reinforcing pieces are arranged in parallel or in a crossed mode, a plurality of vertical supports are arranged above the top plate, a bottom vehicle body support is arranged in the middle of the main cross beam, and the whole bottom vehicle body support is of an H-shaped structure. The structure of the instrument panel beam is further optimized, and the instrument panel beam has better strength and lighter weight.

Description

Technical Field

[0001] This application relates to automotive parts, and more particularly to an automotive dashboard crossbeam. Background Technology

[0002] In the automotive industry, the crossbeam plays a crucial role in the vehicle's structure. The crossbeam primarily secures the instrument panel, supporting the overall rigidity of the instrument panel assembly, and also provides load-bearing support for components such as the steering column, airbags, and air conditioning unit. It connects directly to the vehicle body, bearing and transmitting the loads of the supported and connected components. The crossbeam significantly impacts the vehicle's structural performance, influencing its engineering design, driving operation, and safety. For example, in the event of a frontal collision, the crossbeam reinforces the entire passenger compartment, enhancing vehicle safety.

[0003] Traditional dashboard crossbeams mostly use steel structures, such as steel stamping and welding type or steel tube beam type. With the development of automotive lightweighting, various lightweight design solutions have emerged, such as magnesium-aluminum alloy, aluminum alloy and composite material hybrid type, and all-plastic. Related prior art, such as Chinese patent application "Dashboard Crossbeam Assembly and Dashboard Assembly and Vehicle Having the Same", application number: CN202421007201.X, discloses a dashboard crossbeam assembly including a crossbeam body and multiple reserved mounting positions, including dashboard reserved positions, which are configured to assemble a first connecting bracket, and the crossbeam body can assemble various dashboards through the first connecting bracket. The dashboard crossbeam assembly provided in this application consists of a crossbeam body and multiple reserved mounting positions. By selecting different reserved mounting positions to assemble the first connecting bracket, different types of dashboards can be matched, thereby improving the versatility of the dashboard crossbeam assembly and achieving the purpose of assembling multiple dashboards with a single crossbeam body, realizing the platform-based production effect of the dashboard crossbeam assembly.

[0004] The instrument panel crossbeam assembly described in the aforementioned patent application addresses the low standardization of existing instrument panel crossbeam assemblies by designing various "building block"-like first connecting brackets that are spliced ​​with the crossbeam body. This design results in a complex overall structure, higher manufacturing cost, and greater weight for the instrument panel crossbeam assembly, failing to meet lightweight requirements. Utility Model Content

[0005] The technical problem to be solved by this application is to provide an automotive dashboard crossbeam that further optimizes the dashboard crossbeam structure, resulting in better strength and lighter weight.

[0006] The technical solution adopted in this application is as follows: a crossbeam for an automobile dashboard, including a bracket assembly integrally injection molded from plastic, the bracket assembly including a main crossbeam, the main crossbeam including a main tube with a cylindrical structure, and a top plate and a bottom plate disposed on the main tube, a plurality of reinforcing plates being arranged between the top plate and the bottom plate, the adjacent reinforcing plates being arranged either parallel to each other or intersecting each other, a plurality of vertical supports being disposed above the top plate, and a bottom body support being disposed in the middle of the main crossbeam, the bottom body support being an overall H-shaped structure.

[0007] Compared with existing technologies, the advantages of this application are as follows: First, this application uses plastic as the main material. Compared with traditional steel or aluminum-magnesium alloys and other metal materials, plastic has a lower density, which can effectively reduce the weight of the entire dashboard crossbeam, meeting the development needs of automotive lightweighting and helping to improve the fuel economy and driving range of automobiles. Furthermore, plastic materials are relatively inexpensive. Compared with lightweight metals such as aluminum and magnesium, this reduces raw material costs, thereby effectively controlling the production cost of the entire automotive dashboard crossbeam and resulting in better economic benefits.

[0008] Secondly, the main tube of the crossbeam adopts a circular tubular structure. This closed structure has better strength and rigidity, effectively bearing and distributing loads from all directions. It performs better under pressure and torque, enhancing the overall stability of the instrument panel crossbeam. Multiple reinforcing plates are arranged between the top and bottom plates, with adjacent reinforcing plates either parallel or intersecting each other. This layout further enhances the structural strength and rigidity of the main crossbeam, effectively preventing deformation during use and improving the load-bearing capacity and durability of the instrument panel crossbeam.

[0009] Finally, the multiple vertical brackets installed above the top plate provide more mounting points for various components on the dashboard assembly, meeting the installation needs of different components and improving installation flexibility and adaptability. The bottom body support in the middle of the main crossbeam has an overall H-shaped structure, which enhances the support strength of the main crossbeam in the middle area, better withstands the load from the body, and the integrally formed structure also ensures the reliability of the connection with the body.

[0010] In some embodiments of this application, the bracket assembly is formed by water-assisted injection molding of plastic.

[0011] Water-assisted injection molding (WAIT) is an injection molding technique that can produce thinner, more uniform wall thicknesses, thus saving material. The incompressibility and high viscosity of water create a solid interface at the water front, which can uniformly propel the plastic melt, resulting in a more uniform wall cross-section and reducing defects such as depressions and warping.

[0012] In some embodiments of this application, the bottom vehicle body support includes a first side rod, a second side rod, and a connecting crossbar. The connecting crossbar connects the middle part of the first side rod and the middle part of the second side rod. The top of the first side rod and the top of the second side rod are respectively connected to the main crossbeam. The middle parts of the first side rod and the middle parts of the second side rod are bent forward and close to each other.

[0013] The combination of the first side bar, the second side bar, and the connecting crossbar forms a stable frame, effectively enhancing the structural strength of the bottom body support and better bearing the load from the vehicle body. The design of the first and second side bars bending forward and moving closer to each other in the middle makes the spatial layout of the bottom body support at the front of the vehicle more reasonable, better adapting to the limited space inside the car and improving installation flexibility.

[0014] In some embodiments of this application, side body brackets are provided on both sides of the main crossbeam. The side body brackets have a plate-like structure, and one of the side body brackets is connected to an auxiliary rod. The auxiliary rod has an L-shaped structure and is directly connected to the bottom body bracket.

[0015] The side body brackets have a plate-like structure, providing excellent support to both sides of the main crossbeam, enhancing the overall structural stability and preventing lateral deformation during use. One of the side body brackets is connected to an L-shaped auxiliary rod. This design provides additional mounting points for certain special components, improving installation adaptability and flexibility to meet the needs of different vehicle models and configurations.

[0016] In some embodiments of this application, the auxiliary rod has multiple bends, the auxiliary rod is connected to one side of the bottom vehicle body bracket, and the other side of the bottom vehicle body bracket extends into an extension rod away from the auxiliary rod.

[0017] The auxiliary rod design with multiple bends increases its structural strength, making it more stable under load and less prone to deformation. The auxiliary rod connects to one side of the bottom vehicle body support, while an extension rod extends from the other side of the support. This interconnected design ensures a tighter and more reliable connection throughout the support system, improving the overall load-bearing capacity and durability.

[0018] In some embodiments of this application, a steering column bracket is also provided on the main crossbeam. The steering column bracket is located between the bottom body bracket and one of the side body brackets, and the steering column bracket is a frame structure.

[0019] The steering column bracket is located between the bottom body bracket and the side body bracket. This layout makes efficient use of the space on the main crossbeam, ensuring coordination between the brackets and preventing interference, thus improving space utilization. The frame structure of the steering column bracket provides excellent structural strength and stability, effectively supporting the steering column and other components, ensuring their reliability and safety during operation.

[0020] In some embodiments of this application, the steering column bracket is located on the front side of the main crossbeam. The steering column bracket includes multiple vertical plates arranged in parallel and multiple horizontal plates connecting the vertical plates. The vertical plates have a trapezoidal structure, and the bottom surface of the steering column bracket is an inclined surface.

[0021] The frame structure, composed of multiple vertical and horizontal plates, combined with the trapezoidal design of the vertical plates, allows the steering column bracket to maintain structural strength while being lighter and using materials more efficiently. The bottom surface of the steering column bracket is inclined, which better matches the shape of the front side of the main crossbeam, improving installation accuracy and stability.

[0022] In some embodiments of this application, a first front body bracket is provided on the back side of the main crossbeam, and the first front body bracket is correspondingly provided on the rear side of the steering column bracket. The first front body bracket and the steering column bracket have the same top surface. A second front body bracket is provided on the back side of the main crossbeam, and the second front body bracket is adjacent to the second side rod.

[0023] The first front body bracket and the steering column bracket share the same top surface. This design ensures the continuity and integrity of the main crossbeam's back structure, making force transmission more even and smooth, and improving the structure's stability and load-bearing capacity. The second front body bracket is arranged adjacent to the second side rod, resulting in a reasonable layout and mutual cooperation among the various brackets on the back side of the main crossbeam. This better meets the installation requirements of different components and improves the overall compactness and reliability of the installation.

[0024] In some embodiments of this application, an oblique bracket is provided on the back side of the main crossbeam. The oblique bracket is inclined downward and backward, and is located between the first front body bracket and the first side rod.

[0025] The inclined brackets are tilted downwards and backwards, which can provide additional support to the back side of the main beam, enhance the structural strength of the area, and effectively prevent deformation under stress.

[0026] In some embodiments of this application, a stepped bracket is provided on the back side of the main crossbeam, the back of the stepped bracket has a stepped structure, and the stepped bracket is located between the second side rod and the side body bracket.

[0027] The stepped structure on the back allows the stepped bracket to better adapt to the spatial layout of the main crossbeam's back side, forming a tight fit with the second side bar and the side body bracket, making full use of limited space. This structural design of the stepped bracket increases the contact area and connection points with adjacent components, improving the reliability and stability of the connection, and enhancing the load-bearing capacity and durability of the overall bracket system.

[0028] Based on common knowledge in the field, the above-described embodiments can be combined arbitrarily. Attached Figure Description

[0029] The present application will be described in further detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present application. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0030] Figure 1 This is a schematic diagram of the front side structure of this application. Figure 1 ;

[0031] Figure 2 This is a schematic diagram of the front side structure of this application. Figure 2 ;

[0032] Figure 3 This is a structural diagram of the rear side of this application.

[0033] The specific explanations of the reference numerals in the attached drawings are as follows: 1. Main crossbeam; 2. Main pipe; 3. Top plate; 4. Bottom plate; 5. Reinforcing plate; 6. Vertical bracket; 7. Bottom body bracket; 8. First side bar; 9. Second side bar; 10. Connecting cross bar; 11. Side body bracket; 12. Auxiliary bar; 13. Extension bar; 14. Steering column bracket; 15. Vertical plate; 16. Horizontal plate; 17. First front body bracket; 18. Second front body bracket; 19. Diagonal bracket; 20. Stepped bracket. Detailed Implementation

[0034] The present application will now be described in detail with reference to the accompanying drawings.

[0035] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0036] A car dashboard crossbeam, embodiment one as follows Figures 1 to 2As shown, this application includes a bracket assembly integrally injection molded from plastic. Plastic is used as the main material, and compared to traditional metal materials such as steel or aluminum-magnesium alloys, plastic has a lower density, effectively reducing the weight of the entire dashboard crossbeam. This meets the development needs of lightweight vehicles and helps improve fuel economy and driving range. Furthermore, plastic materials are relatively inexpensive compared to lightweight metals like aluminum and magnesium, reducing raw material costs and thus effectively controlling the production cost of the entire dashboard crossbeam, resulting in better economic benefits.

[0037] The aforementioned support assembly includes a main crossbeam 1, which comprises a main pipe 2 with a circular tubular structure, and a top plate 3 and a bottom plate 4 mounted on the main pipe 2. The main pipe 2 of the main crossbeam 1 adopts a circular tubular structure, which provides better strength and rigidity, effectively bearing and distributing loads from all directions. It performs better under pressure and torque, enhancing the overall stability of the instrument panel crossbeam. Multiple reinforcing plates 5 are arranged between the top plate 3 and the bottom plate 4. Adjacent reinforcing plates 5 are either parallel to each other or intersecting each other. This arrangement further enhances the structural strength and rigidity of the main crossbeam 1, effectively preventing deformation during use and improving the load-bearing capacity and durability of the instrument panel crossbeam.

[0038] Multiple vertical supports 6 are installed above the top plate 3, and a bottom body support 7 is installed in the middle of the main crossbeam 1. The bottom body support 7 has an overall H-shaped structure. This provides more mounting points for various components on the instrument panel assembly, meeting the installation needs of different components and improving installation flexibility and adaptability. The overall H-shaped structure of the bottom body support 7 in the middle of the main crossbeam 1 enhances the support strength of the main crossbeam 1 in the middle region, better bearing the load from the vehicle body, while the integrally formed structure also ensures the reliability of the connection with the vehicle body.

[0039] The aforementioned bracket assembly is manufactured using water-assisted injection molding. Water-assisted injection molding can produce thinner and more uniform wall thicknesses, thereby saving materials, reducing costs, and decreasing product weight, contributing to automotive lightweighting. The incompressibility and high viscosity of water create a solid interface at the water front, which can uniformly propel the plastic melt, resulting in a more uniform product wall cross-section, reducing defects such as dents and warping, and improving product quality and dimensional accuracy.

[0040] Example 2, as Figures 1 to 3As shown, the bottom body support 7 includes a first side rod 8, a second side rod 9, and a connecting crossbar 10. The connecting crossbar 10 connects the middle of the first side rod 8 and the middle of the second side rod 9. The tops of the first side rod 8 and the second side rod 9 are respectively connected to the main crossbeam 1. The middle sections of the first side rod 8 and the second side rod 9 are bent forward and close to each other. The combined structure of the first side rod 8, the second side rod 9, and the connecting crossbar 10 forms a stable frame, effectively enhancing the structural strength of the bottom body support 7 and better bearing the load from the vehicle body. The design of the middle sections of the first side rod 8 and the second side rod 9 bending forward and close to each other makes the spatial layout of the bottom body support 7 at the front of the vehicle more reasonable, better adapting to the limited space inside the car and improving installation flexibility.

[0041] Side body supports 11 are provided on both sides of the main crossbeam 1. Each side body support 11 has a plate-like structure, and one of the side body supports 11 is connected to an auxiliary rod 12. The auxiliary rod 12 has an L-shaped structure and is directly connected to the bottom body support 7. The plate-like structure of the side body supports 11 provides good support to both sides of the main crossbeam 1, enhancing the stability of the overall structure and preventing lateral deformation during use. The L-shaped auxiliary rod 12 connected to one of the side body supports 11 provides additional mounting points for some special components, improving installation adaptability and flexibility to meet the needs of different vehicle models and configurations.

[0042] The auxiliary rod 12 has multiple bends. It connects to one side of the bottom vehicle body support 7, and an extension rod 13 extends from the other side of the bottom vehicle body support 7 away from the auxiliary rod 12. This design with multiple bends increases the structural strength of the auxiliary rod 12, making it more stable under load and less prone to deformation. The interconnected structure of the auxiliary rod 12 and the extension rod 13 makes the entire support system more tightly and reliably connected, improving the overall load-bearing capacity and durability.

[0043] A steering column bracket 14 is also provided on the main crossbeam 1. The steering column bracket 14 is located between the bottom body bracket 7 and one of the side body brackets 11, and the steering column bracket 14 is a frame structure. This layout makes efficient use of the space on the main crossbeam 1, ensuring coordination between the brackets and preventing interference, thus improving space utilization. The frame structure of the steering column bracket 14 provides good structural strength and stability, effectively supporting components such as the steering column and ensuring their reliability and safety during operation.

[0044] The steering column bracket 14 is located on the front side of the main crossbeam 1. The steering column bracket 14 includes multiple parallel vertical plates 15 and multiple horizontal plates 16 connecting the vertical plates 15. The vertical plates 15 have a trapezoidal structure, and the bottom surface of the steering column bracket 14 is inclined. The frame structure composed of the multiple vertical plates 15 and horizontal plates 16, combined with the trapezoidal design of the vertical plates 15, allows the steering column bracket 14 to maintain structural strength while being lighter and using materials more efficiently. The inclined bottom surface of the steering column bracket 14 better matches the shape of the front side of the main crossbeam 1, improving installation accuracy and stability.

[0045] A first front body bracket 17 is provided on the back side of the main crossbeam 1. The first front body bracket 17 is correspondingly located behind the steering column bracket 14, and the first front body bracket 17 and the steering column bracket 14 have the same top surface. A second front body bracket 18 is provided on the back side of the main crossbeam 1, and the second front body bracket 18 is adjacent to the second side rod 9. The first front body bracket 17 and the steering column bracket 14 have the same top surface. This design ensures the continuity and integrity of the structure on the back side of the main crossbeam 1, making the force transmission more uniform and smooth, and improving the stability and load-bearing capacity of the structure. The second front body bracket 18 is adjacent to the second side rod 9, which makes the layout of the various brackets on the back side of the main crossbeam 1 reasonable and mutually cooperative, which can better meet the installation requirements of different components and improve the compactness and reliability of the overall installation.

[0046] A slanted bracket 19 is provided on the back side of the main crossbeam 1. The slanted bracket 19 is inclined downward and backward, and is located between the first front body bracket 17 and the first side rod 8. The downward and backward inclination of the slanted bracket 19 can provide additional support to the back side of the main crossbeam 1, enhance the structural strength of this area, and effectively prevent deformation under stress.

[0047] A stepped bracket 20 is provided on the back side of the main crossbeam 1. The back of the stepped bracket 20 has a stepped structure and is located between the second side rod 9 and the side body bracket 11. This stepped back design allows the stepped bracket 20 to better adapt to the spatial layout of the back side of the main crossbeam 1, forming a tight fit with the second side rod 9 and the side body bracket 11, making full use of the limited space. This structural design of the stepped bracket 20 increases the contact area and connection points with adjacent components, improves the reliability and stability of the connection, and enhances the load-bearing capacity and durability of the overall bracket system.

[0048] The rest of the contents of Example 2 are the same as those of Example 1.

[0049] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The descriptions of the embodiments above are only for the purpose of helping to understand the present application and its core ideas. It should be noted that for those skilled in the art, several improvements and modifications can be made to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A crossbeam for an automotive dashboard, characterized in that, The bracket assembly includes a support assembly integrally injection molded from plastic. The support assembly includes a main crossbeam (1). The main crossbeam (1) includes a main tube (2) with a cylindrical structure, and a top plate (3) and a bottom plate (4) set on the main tube (2). Multiple reinforcing plates (5) are arranged between the top plate (3) and the bottom plate (4). Adjacent reinforcing plates (5) are arranged either parallel to each other or intersecting each other. Multiple vertical supports (6) are set above the top plate (3). A bottom body support (7) is set in the middle of the main crossbeam (1). The bottom body support (7) is formed into an H-shaped structure.

2. The automotive dashboard crossbeam according to claim 1, characterized in that, The bracket assembly is manufactured using water-assisted injection molding of plastic.

3. The automotive dashboard crossbeam according to claim 1, characterized in that, The bottom body support (7) includes a first side rod (8), a second side rod (9) and a connecting crossbar (10). The connecting crossbar (10) connects the middle part of the first side rod (8) and the middle part of the second side rod (9). The top of the first side rod (8) and the top of the second side rod (9) are respectively connected to the main crossbeam (1). The middle parts of the first side rod (8) and the middle parts of the second side rod (9) bend forward and move closer to each other.

4. The automotive dashboard crossbeam according to claim 1, characterized in that, The main crossbeam (1) is provided with side body brackets (11) on both sides. The side body brackets (11) are plate-shaped. One of the side body brackets (11) is connected to an auxiliary rod (12). The auxiliary rod (12) is L-shaped and is directly connected to the bottom body bracket (7).

5. A crossbeam for an automotive dashboard according to claim 4, characterized in that, The auxiliary rod (12) has multiple bends. The auxiliary rod (12) is connected to one side of the bottom body support (7). The other side of the bottom body support (7) extends into an extension rod (13) away from the auxiliary rod (12).

6. A crossbeam for an automotive dashboard according to claim 1, characterized in that, The main crossbeam (1) is also provided with a steering column bracket (14), which is located between the bottom body bracket (7) and one of the side body brackets (11). The steering column bracket (14) is a frame structure.

7. A crossbeam for an automotive dashboard according to claim 6, characterized in that, The steering column bracket (14) is located on the front side of the main crossbeam (1). The steering column bracket (14) includes multiple vertical plates (15) arranged in parallel and multiple horizontal plates (16) connecting the vertical plates (15). The vertical plates (15) have a trapezoidal structure, and the bottom surface of the steering column bracket (14) is an inclined surface.

8. A crossbeam for an automotive dashboard according to claim 7, characterized in that, The main crossbeam (1) is provided with a first front body bracket (17) on the back side, and the first front body bracket (17) is provided on the rear side of the steering column bracket (14). The first front body bracket (17) and the steering column bracket (14) are on the same top surface. The main crossbeam (1) is provided with a second front body bracket (18) on the back side, and the second front body bracket (18) is adjacent to the second side rod (9).

9. A crossbeam for an automotive dashboard according to claim 1, characterized in that, The main crossbeam (1) is provided with a diagonal bracket (19) on its back side. The diagonal bracket (19) is inclined downward and backward. The diagonal bracket (19) is located between the first front body bracket (17) and the first side rod (8).

10. A crossbeam for an automotive dashboard according to claim 1, characterized in that, The back side of the main crossbeam (1) is provided with a stepped bracket (20), the back of the stepped bracket (20) has a stepped structure, and the stepped bracket (20) is located between the second side rod (9) and the side body bracket (11).

Images