Front cross beam support assembly and vehicle

Abstract

This invention provides a front crossbeam bracket assembly and a vehicle. The front crossbeam bracket assembly includes a crossbeam, with a bracket body at each end of the crossbeam. Each bracket body has a crossbeam connecting portion and a towing portion. The crossbeam connecting portion connects to the end of the crossbeam, and the towing portion connects to a tow hook. The crossbeam connecting portion includes a solid connecting post extending along the width direction of the vehicle body and into the crossbeam. This invention addresses the problem of poor connection strength in existing front crossbeam bracket assemblies.

Description

Technical Field

[0001] This invention relates to the field of front crossbeam bracket assembly technology, and more specifically, to a front crossbeam bracket assembly and a vehicle. Background Technology

[0002] In the existing technology, the front crossbeam bracket assembly generally adopts a stamped steel plate welded assembly structure. The connection between the bracket body and the front crossbeam is mostly done by external welded flanges or lap plates. That is, a steel plate is welded to the end of the bracket and then the steel plate is connected to the outer wall of the crossbeam by fillet weld. The metal fibers are easily cut at the weld, which can easily lead to insufficient connection strength in actual use. This results in local stress concentration, short fatigue life, and fracture of the front crossbeam assembly.

[0003] There is currently no effective solution to the aforementioned technical problems. Summary of the Invention

[0004] The main objective of this invention is to provide a front crossbeam bracket assembly and a vehicle to solve the problem of poor connection strength in the prior art.

[0005] To achieve the above objectives, according to one aspect of the present invention, a front crossbeam bracket assembly is provided, comprising: a crossbeam, with a bracket body provided at each end of the crossbeam, wherein the bracket body is provided with a crossbeam connecting portion and a drag portion, the crossbeam connecting portion being used to connect to the end of the crossbeam, and the drag portion being used to connect to a tow hook; wherein the crossbeam connecting portion includes a solid connecting post, the solid connecting post being provided to extend along the width direction of the vehicle body, and the solid connecting post extending into the crossbeam.

[0006] Furthermore, the towing part includes a towing through hole, which is provided through the vehicle body along its length.

[0007] Furthermore, the bracket body includes a transition portion disposed between the solid connecting post and the drag joint. The transition portion has a quadrilateral cross-section located on the horizontal plane of the vehicle body. The quadrilateral cross-section includes a first long side and a second long side disposed along the length direction of the vehicle body, and a first short side and a second short side disposed along the width direction of the vehicle body. The first long side is disposed close to the solid connecting post, and the second long side is disposed close to the drag joint. The first long side has a length h, and the first short side has a length b, wherein 0.2≤b / h≤0.8.

[0008] Furthermore, the quadrilateral cross-section is a parallelogram.

[0009] Furthermore, the end face of the first end of the drag-through hole is set perpendicular to the axial direction of the drag-through hole, and the end face of the second end of the drag-through hole is set at an angle to the radial section of the drag-through hole.

[0010] Furthermore, the bracket body is provided with a bumper connecting part and a fixing part. The fixing part is used to connect the extension beam, and the bumper connecting part is used to connect the bumper. The bracket body includes a first body, a second body connected to the first body, and a third body connected to the second body. The first body and the third body are both extended along the width direction of the vehicle body, and the second body is extended along the length direction of the vehicle body. The crossbeam connecting part is located at the end of the first body away from the second body, the drag part is located on the second body, and the bumper connecting part and the fixing part are both located on the third body.

[0011] Furthermore, the support body also includes multiple reinforcing parts, which connect the second body and the third body.

[0012] Furthermore, the bracket body is provided with multiple fixing parts, which are spaced apart along the vehicle height direction, and at least one fixing part is provided with a reinforcing part between it and the connecting part.

[0013] Furthermore, the support body is integrally formed using a forging process.

[0014] According to another aspect of the present invention, a vehicle is provided having a front crossbeam support assembly, the front crossbeam support assembly being the aforementioned front crossbeam support assembly.

[0015] By applying the technical solution of this invention, a support body is provided at each end of the crossbeam, and the support body is provided with a crossbeam connecting part and a drag joint, so that the trailer hook connection points are symmetrically distributed from left to right, and the load of the trailer hook is evenly distributed to both sides of the crossbeam, improving the balance of the front crossbeam support assembly. By integrating the crossbeam connecting part and the drag joint onto the same support body, the number of parts is reduced, and the installation complexity of the front crossbeam support assembly is reduced. The support body is firmly connected to the crossbeam through the crossbeam connecting part, significantly enhancing the dragging capacity of the front crossbeam support assembly. By extending the solid connecting column into the crossbeam, the stress concentration problem caused by bolt fixing is avoided, the contact area between the crossbeam and the support body is increased, the risk of fatigue fracture of the crossbeam is avoided, and the compressive strength and connection strength of the crossbeam are effectively improved. The embodiments of this application solve the problem of poor connection strength of the front crossbeam support assembly in the prior art. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0017] Figure 1 A schematic diagram of a first embodiment of the front crossbeam support assembly according to the present invention is shown;

[0018] Figure 2A schematic diagram of a second embodiment of the front crossbeam support assembly according to the present invention is shown;

[0019] Figure 3 A structural schematic diagram of a third embodiment of the front crossbeam support assembly according to the present invention is shown;

[0020] Figure 4 A structural schematic diagram of a fourth embodiment of the front crossbeam support assembly according to the present invention is shown;

[0021] Figure 5 A structural schematic diagram of a fifth embodiment of the front crossbeam support assembly according to the present invention is shown;

[0022] Figure 6 A structural schematic diagram of the AA section of the front crossbeam support assembly according to the present invention is shown;

[0023] Figure 7 A structural schematic diagram of the BB section of the front crossbeam support assembly according to the present invention is shown.

[0024] The above figures include the following reference numerals:

[0025] 6. Support body; 10. Crossbeam;

[0026] 601. The first ontology; 602. The second ontology; 603. The third ontology;

[0027] 610. Beam connection; 611. Solid connecting column;

[0028] 620. Fixing part;

[0029] 630. Transitional section;

[0030] 640. Drag connector; 641. Drag connector through hole;

[0031] 650, Bumper connecting part; 6501, Bumper connecting hole; 6502, Bumper positioning hole;

[0032] 660. Hollowed-out structure;

[0033] 670. Strengthening Department. Detailed Implementation

[0034] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0036] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus 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 apparatus.

[0037] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

[0038] Combination Figures 1 to 7 As shown, according to a specific embodiment of this application, a front crossbeam bracket assembly and a vehicle are provided.

[0039] Specifically, the front crossbeam bracket assembly includes a crossbeam 10, with a bracket body 6 at each end of the crossbeam 10. The bracket body 6 is provided with a crossbeam connecting part 610 and a drag part 640. The crossbeam connecting part 610 is used to connect to the end of the crossbeam 10, and the drag part 640 is used to connect to a tow hook. The crossbeam connecting part 610 includes a solid connecting post 611, which extends along the width direction of the vehicle body and extends into the crossbeam 10.

[0040] By applying the technical solution of this embodiment, a support body 6 is provided at each end of the crossbeam 10, and the support body 6 is provided with a crossbeam connecting part 610 and a drag joint 640, so that the trailer hook connection points are symmetrically distributed from left to right, and the load of the trailer hook is evenly distributed to both sides of the crossbeam 10, improving the balance of the front crossbeam support assembly. By integrating the crossbeam connecting part 610 and the drag joint 640 onto the same support body 6, the number of parts is reduced, and the installation complexity of the front crossbeam support assembly is reduced. The support body 6 is firmly connected to the crossbeam 10 through the crossbeam connecting part 610, which significantly enhances the dragging capacity of the front crossbeam support assembly. By extending the solid connecting column 611 into the crossbeam 10, the stress concentration problem caused by bolt fixing is avoided, the contact area between the crossbeam 10 and the support body 6 is increased, the risk of fatigue fracture of the crossbeam 10 is avoided, and the compressive strength and connection strength of the crossbeam 10 are effectively improved. This embodiment of the application solves the problem of poor connection strength of the front crossbeam support assembly in the prior art.

[0041] Specifically, the towing part 640 includes a towing through hole 641, which is provided through the vehicle body along its length.

[0042] In this embodiment, the towing through hole 641 is provided through the length of the vehicle body, so that the towing hook can be assembled and connected along the length of the vehicle body. It should be noted that the towing hook passes through the towing through hole 641 through a connecting pin or connecting rod, and anti-detachment buckles or locking pins are installed on both sides.

[0043] Preferably, such as Figure 5 As shown, the bracket body 6 includes a transition portion 630 disposed between the solid connecting post 611 and the drag portion 640. The transition portion 630 has a quadrilateral cross-section located on the horizontal plane of the vehicle body. The quadrilateral cross-section includes a first long side and a second long side disposed along the length direction of the vehicle body, and a first short side and a second short side disposed along the width direction of the vehicle body. The first long side is disposed close to the solid connecting post 611, and the second long side is disposed close to the drag portion 640. The first long side has a length h, and the first short side has a length b, wherein 0.2≤b / h≤0.8.

[0044] In this embodiment, the solid connecting post 611 is a high-strength, high-rigidity columnar structure, mainly bearing the concentrated load from the crossbeam 10. The towing through hole 641 is a hole-like structure, mainly bearing the tensile load from the towing hook. By setting the transition portion 630 as a quadrilateral cross-section, and the quadrilateral cross-section having a first long side and a second long side arranged along the length direction of the vehicle body, and a first short side and a second short side extending along the width direction of the vehicle body, with the first long side located close to the solid connecting post 611 and the second long side located close to the towing portion 640, the load is transferred from the solid connecting post. The larger cross-section at 611 smoothly transitions to the smaller cross-section near the towing through hole 641, resulting in a smoother stress change, significantly reducing the risk of stress concentration, and increasing the fatigue life of the transition section 630 and the connection strength of the towing section 640. By setting the length ratio b / h of the first long side to the first short side to 0.2≤b / h≤0.8, the material is minimized while ensuring the bending stiffness of the transition section 630, achieving the goal of lightweighting, avoiding the risk of deformation caused by insufficient stiffness, and preventing the towing hook from swaying and affecting driving stability.

[0045] Preferably, the quadrilateral cross-section is a parallelogram.

[0046] In this embodiment, under the load of the tow hook, the force is transmitted from the solid connecting post 611 to the transition part 630 and the towing through hole 641. Compared with the right angle of the rectangular section, the angle between the adjacent sides of the parallelogram section is more gradual, so that the load propagation path in the section is continuous and without large turns, avoiding stress abrupt changes at the right angle. Under tensile conditions, the displacement deviation of the parallelogram structure is small, making the connection of the tow hook more stable and avoiding shaking during vehicle operation.

[0047] Preferably, the end face of the first end of the drag-through hole 641 is perpendicular to the axial direction of the drag-through hole 641, and the end face of the second end of the drag-through hole 641 is set at an angle to the radial section of the drag-through hole 641.

[0048] In this embodiment, by vertically setting the first end of the towing through hole 641 to the axial end face of the towing through hole 641, the inner end face of the inserted towing hook pin is tightly fitted with the first end of the towing through hole 641 after assembly, preventing the pin from shifting position and making the force transmission between the towing hook and the towing through hole 641 more uniform. By setting the second end of the towing through hole 641 at an angle to the radial section, when the towing hook is inserted, the cylindrical surface of the towing hook pin first contacts the inclined end face, and the inclined surface automatically pushes the pin back, making the positioning of the towing hook accurate and greatly improving the assembly success rate between the towing hook and the towing through hole 641.

[0049] In one exemplary embodiment of this application, such as Figures 3 to 5As shown, free forging is used to achieve arbitrary eccentric setting of the crossbeam connecting part 610 and the drag part 640 by setting the value of angle a; and the crossbeam connecting part 610 and the fixing part 620 are flexibly connected by setting the values ​​of angle b and angle c.

[0050] Specifically, the bracket body 6 is provided with a bumper connecting part 650 and a fixing part 620. The fixing part 620 is used to connect the extension beam, and the bumper connecting part 650 is used to connect the bumper. The bracket body 6 includes a first body 601, a second body 602 connected to the first body 601, and a third body 603 connected to the second body 602. The first body 601 and the third body 603 both extend along the width direction of the vehicle body, and the second body 602 extends along the length direction of the vehicle body. The crossbeam connecting part 610 is provided at the end of the first body 601 away from the second body 602, the drag part 640 is provided on the second body 602, and the bumper connecting part 650 and the fixing part 620 are both provided on the third body 603.

[0051] In one exemplary embodiment of this application, the solid connecting column 611 and the crossbeam 10 are assembled using a hydraulic press-fit process to achieve an interference fit connection; the tow hook and the towing part 640 are connected by a pin and a double-end limiting method; the bumper connecting part 650 and the bumper are connected by a combination of buckles and bolts, with the bumper and the bumper connecting part 650 connected through the bumper connecting hole 6501, and the bumper positioned through the bumper positioning hole 6502; the fixing part 620 and the extension beam are connected by bolt holes, positioning pins, or quick-connect guide grooves.

[0052] In this embodiment, by integrating the first body 601, the second body 602, and the third body 603 onto the same bracket body 6, with the first body 601 connecting the crossbeam 10, the second body 602 connecting the tow hook, and the third body 603 connecting the bumper and the extension beam, the number of parts is reduced, lowering the overall vehicle cost and enabling the same bracket body 6 to perform multiple functions. The first body 601, the second body 602, and the third body 603 respectively bear the forces from the crossbeam 10, the tow hook, and the bumper, ensuring a continuous load transmission path and avoiding the risk of stress concentration and fatigue fracture. The second body 602 connects the first body 601 and the third body 603, enabling the vehicle to effectively resist torsional deformation when encountering a collision, greatly improving the torsional stiffness of the front crossbeam bracket assembly and preventing bumper deformation and loosening. Connecting the bumper and the extension beam to the third body 603 via the bumper connecting part 650 and the fixing part 620 respectively improves the space utilization of the bracket body 6 and saves front space of the vehicle.

[0053] Preferably, the third body 603 is provided with a hollow structure 660.

[0054] In this embodiment, some material is removed from the hollow structure 660, which reduces the weight of the third body 603 while ensuring rigidity, thereby achieving the lightweighting of the whole vehicle, reducing the energy consumption of the car and improving the driving range of the whole vehicle.

[0055] Preferably, the support body 6 further includes a plurality of reinforcing parts 670, which connect the second body 602 and the third body 603.

[0056] In one exemplary embodiment of this application, the reinforcing part 670 is triangular, and two to four reinforcing parts 670 are provided on each side of the bracket body 6, with the multiple reinforcing parts 670 spaced apart along the vehicle height direction.

[0057] In this embodiment, the second body 602 bears the pulling force from the tow hook, and the third body 603 bears the load from the bumper and the extension beam. The second body 602 and the third body 603 are connected by the reinforcing part 670. The multiple triangular reinforcing parts 670 make the connection between the second body and the third body 603 more stable, optimize the load transmission path, and avoid bending deformation of the bracket body 6.

[0058] Furthermore, the bracket body 6 is provided with a plurality of fixing parts 620, which are spaced apart along the height direction of the vehicle body, and at least one fixing part 620 is provided with a reinforcing part 670 between it and the connecting part 640.

[0059] In this embodiment, multiple fixing parts 620 are connected to the extension beam, and the towing part 640 is connected to the tow hook. By placing the reinforcing part 670 between the fixing part and the towing part 640, the tow hook load of the towing part 640 is transferred to the fixing part 620 through the reinforcing part 670. The multiple reinforcing parts 670 share the stress from the fixing part 620 and the towing part 640, increasing the connection strength between the fixing part 620 and the towing part 640. The multiple fixing parts are spaced apart along the vehicle body direction to avoid stress concentration at the towing part 640 and the fixing part 620, reducing the risk of deformation of the third body 603.

[0060] Specifically, the support body 6 is integrally formed using a forging process.

[0061] The forging process involves heating, forging, die forming, and cooling, resulting in a complete one-time forming. The material used is high-strength alloy steel.

[0062] In this embodiment, by integrally forming the bracket body 6 through a forging process, assembly steps such as welding and bolting are avoided, making the surface of the bracket body 6 complete and continuous without weld seams. This improves the structural integrity and fatigue resistance of the bracket body 6, enabling the front crossbeam bracket assembly to withstand multi-directional loads and avoid the risk of breakage. The forging process of integral forming results in a smooth surface without pores, which is beneficial for corrosion prevention.

[0063] According to another specific embodiment of this application, a vehicle is provided having a front crossbeam bracket assembly, which is the aforementioned front crossbeam bracket assembly.

[0064] By applying the technical solution of this embodiment, a bracket body 6 is provided at each end of the crossbeam 10, and the bracket body 6 is provided with a crossbeam connecting part 610 and a towing part 640, so that the towing hook connection points are symmetrically distributed on the left and right sides, and the load of the towing hook is evenly distributed to both sides of the crossbeam 10, thereby improving the balance of the front crossbeam bracket assembly. By integrating the crossbeam connecting part 610 and the towing part 640 on the same bracket body 6, the number of parts is reduced, and the installation complexity of the front crossbeam bracket assembly is reduced. The bracket body 6 is firmly connected to the crossbeam 10 through the crossbeam connecting part 610, which significantly enhances the towing capacity of the whole vehicle. By extending the solid connecting post 611 into the crossbeam 10, the stress concentration problem caused by bolt fixing is avoided, the contact area between the crossbeam 10 and the bracket body 6 is increased, the risk of fatigue fracture of the crossbeam 10 is avoided, the compressive strength and connection strength of the crossbeam 10 are effectively improved, and the service life of the vehicle is extended.

[0065] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0066] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this invention.

[0067] 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.

[0068] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A front crossbeam bracket assembly, characterized in that, include: A crossbeam (10) is provided at each end of the crossbeam (10) with a support body (6). The support body (6) is provided with a crossbeam connecting part (610) and a drag part (640). The crossbeam connecting part (610) is used to connect to the end of the crossbeam (10), and the drag part (640) is used to connect to the tow hook. The crossbeam connection part (610) includes a solid connecting post (611), which extends along the width direction of the vehicle body and extends into the crossbeam (10).

2. The front crossbeam bracket assembly according to claim 1, characterized in that, The towing part (640) includes a towing through hole (641), which is provided through the vehicle body along the length direction.

3. The front crossbeam support assembly according to claim 2, characterized in that, The bracket body (6) includes a transition portion (630) disposed between the solid connecting column (611) and the drag part (640). The transition portion (630) has a quadrilateral cross-section located on the horizontal plane of the vehicle body. The quadrilateral cross-section includes a first long side and a second long side disposed along the length direction of the vehicle body, and a first short side and a second short side disposed along the width direction of the vehicle body. The first long side is disposed close to the solid connecting column (611), and the second long side is disposed close to the drag part (640). The first long side has a length h, and the first short side has a length b, wherein 0.2≤b / h≤0.

8.

4. The front crossbeam support assembly according to claim 3, characterized in that, The quadrilateral cross section is a parallelogram.

5. The front crossbeam bracket assembly according to claim 4, characterized in that, The end face of the first end of the drag-through hole (641) is perpendicular to the axial direction of the drag-through hole (641), and the end face of the second end of the drag-through hole (641) is set at an angle to the radial section of the drag-through hole (641).

6. The front crossbeam bracket assembly according to claim 1, characterized in that, The bracket body (6) is provided with a bumper connecting part (650) and a fixing part (620). The fixing part (620) is used to connect the extension beam, and the bumper connecting part (650) is used to connect the bumper. The bracket body (6) includes a first body (601), a second body (602) connected to the first body (601), and a third body (603) connected to the second body (602). The first body (601) and the third body (603) are both extended along the width direction of the vehicle body, and the second body (602) is extended along the length direction of the vehicle body. The crossbeam connecting part (610) is located at the end of the first body (601) away from the second body (602), the drag part (640) is located on the second body (602), and the bumper connecting part (650) and the fixing part (620) are both located on the third body (603).

7. The front crossbeam bracket assembly according to claim 6, characterized in that, The support body (6) also includes a plurality of reinforcing parts (670), which connect the second body (602) and the third body (603).

8. The front crossbeam bracket assembly according to claim 7, characterized in that, The bracket body (6) is provided with a plurality of fixing parts (620), the plurality of fixing parts (620) are spaced apart along the vehicle height direction, and at least one fixing part (620) is provided with a reinforcing part (670) between it and the drag part (640).

9. The front crossbeam bracket assembly according to any one of claims 1-8, characterized in that, The bracket body (6) is integrally formed by forging process.

10. A vehicle, characterized in that, The vehicle has a front crossbeam bracket assembly, which is the front crossbeam bracket assembly according to any one of claims 1-9.

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