CN120156593B - A vehicle component, body structure, and vehicle - Google Patents

Abstract

The invention relates to a vehicle component, which is suitable for being integrally installed in a vehicle and comprises two longitudinal beams which are arranged at intervals in the left-right direction and a plurality of transverse beams which are arranged at intervals in the front-rear direction, wherein the transverse beams are connected between the two longitudinal beams, the two longitudinal beams are provided with connecting parts, the connecting part on one longitudinal beam is used for being connected with a threshold beam on one side of the vehicle, and the connecting part on the other longitudinal beam is used for being connected with the threshold beam on the other side of the vehicle. The invention also provides a vehicle body structure and a vehicle. The invention is beneficial to improving the strength and the rigidity of the vehicle body, improving the side collision performance of the vehicle and improving the manufacturing efficiency of the vehicle, can reduce the requirements on the material thickness and the cavity size of the vehicle parts on the premise of ensuring the performance of the vehicle body, and has the characteristics of less parts and high material utilization rate.

Description

A vehicle component, body structure, and vehicle

Technical Field

This invention relates to the field of vehicle technology, and more specifically to a vehicle component, body structure, and vehicle.

Background Technology

The seat mounting beams in a vehicle not only serve as support components for seat installation but also as critical force-transmitting components during a side impact. These beams must possess sufficient strength and rigidity to prevent significant deformation of the passenger compartment and battery pack during a side impact.

As shown in Figure 6, in existing vehicle body structures, the seat mounting beam 3 is typically a beam with a "几"-shaped cross-section, and its two ends are connected to the two vehicle body sill beams 4. The existing seat mounting beam and vehicle body structure have the following technical problems:

To ensure the vehicle's bending and torsional resistance, the cavity of the seat mounting beam is often designed to be large, resulting in the seat mounting beam occupying too much of the vehicle's height space.

The connection between the seat mounting beam and the sill beam has low strength, and this connection is usually a weak point in the vehicle body structure when a side collision occurs.

Adding reinforcements to the seat mounting beam can improve its strength, but it increases the number of parts and the overall vehicle weight, which is not conducive to lightweight vehicle design.

In existing vehicle body structures, two seat mounting beams are typically required to provide mounting points for a row of vehicle seats. During the vehicle manufacturing process, these two seat mounting beams need to be installed separately, resulting in low manufacturing efficiency.

Summary of the Invention

The purpose of this invention is to provide a vehicle component, body structure, and vehicle to mitigate or eliminate at least one of the aforementioned technical problems.

The present invention discloses a vehicle component suitable for integral installation in a vehicle. The vehicle component includes two longitudinal beams spaced apart in the left-right direction and multiple transverse beams spaced apart in the front-rear direction. The multiple transverse beams are all connected between the two longitudinal beams. Each of the two longitudinal beams is provided with a connecting portion. The connecting portion on one longitudinal beam is used to connect with a sill beam on one side of the vehicle, and the connecting portion on the other longitudinal beam is used to connect with a sill beam on the other side of the vehicle.

Optionally, it includes two crossbeams, one of which is connected at both ends to one end of each of the two longitudinal beams, and the other of which is connected at both ends to the other ends of each of the two longitudinal beams.

Optionally, both longitudinal beams and the multiple transverse beams are hollow structures with closed cross sections.

Optionally, the vehicle component comprises an annular bottom wall, an annular top wall located above the bottom wall, an inner peripheral wall connecting the inner edge of the bottom wall and the inner edge of the top wall, and an outer peripheral wall connecting the outer edge of the bottom wall and the outer edge of the top wall.

Optionally, the vehicle component is an integral part made from a single tubular metal blank through a tube bending process and a hot air expansion forming process.

Optionally, at least one of the crossbeams comprises multiple crossbeam segments arranged sequentially, wherein the crossbeam segment closer to the middle position along the length direction of the crossbeam in two adjacent crossbeam segments has a thicker material; and adjacent crossbeam segments are connected by a material thickness transition section.

Optionally, the connecting part is disposed on the side wall of the longitudinal beam on the side closest to the vehicle, and the connecting part is provided with a first connecting hole for connecting with the sill beam.

Optionally, at least one of the crossbeams is provided with vehicle seat mounting holes.

Optionally, the vehicle component is provided with a leakage hole.

Optionally, the vehicle component is provided with positioning holes.

Optionally, the vehicle component is provided with a second connection hole for connecting to the vehicle's battery pack.

The present invention also proposes a vehicle body structure, including two sill beams and the vehicle component described in any of the above claims, wherein the two longitudinal beams of the vehicle component are respectively connected to the two sill beams.

The present invention also proposes a vehicle comprising the aforementioned body structure.

This invention helps to improve the strength and rigidity of the vehicle body, improve the side impact performance of the vehicle, and improve the manufacturing efficiency of the vehicle. While ensuring the performance of the vehicle body, it can reduce the requirements for the material thickness and cavity size of vehicle parts, and has the characteristics of fewer parts and higher material utilization.

Attached Figure Description

Figure 1 is a structural schematic diagram of the vehicle components described in some embodiments;

Figure 2 is a top view of the vehicle components described in some embodiments;

Figure 3 is a cross-sectional schematic diagram of the vehicle component described in some embodiments;

Figure 4 is a structural schematic diagram of the vehicle body structure described in some embodiments;

Figure 5 is a top view of the vehicle body structure described in some embodiments;

Figure 6 is a structural schematic diagram of the vehicle body structure described in the background art.

In the diagram, 1—vehicle component, 2—sill beam, 3—seat mounting beam, 4—body sill beam.

101—Crossbeam, 102—Longitudinal beam, 103—Crossbeam section, 104—Material thickness transition section, 105—Seat mounting hole, 106—First connecting hole, 107—First clearance hole, 108—Second clearance hole, 109—Second connecting hole, 110—Positioning hole, 111—Leakage hole, 112—Welding part, 113—Inner peripheral wall, 114—Outer peripheral wall, 115—Top wall, 116—Bottom wall, 117—Bending section.

Detailed Implementation

The embodiments of the present invention will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention and not for limiting the scope of protection of the present invention.

It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The illustrations only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

As shown in Figures 1 and 2, a vehicle component 1 is adapted to be integrally installed in a vehicle. The vehicle component 1 includes two longitudinal beams 102 arranged at intervals in the left-right direction and multiple transverse beams 101 arranged at intervals in the front-rear direction. The multiple transverse beams 101 are all connected between the two longitudinal beams 102. Each of the two longitudinal beams 102 is provided with a connecting part. The connecting part on one longitudinal beam 102 is used to connect with the sill beam 2 on one side of the vehicle, and the connecting part on the other longitudinal beam 102 is used to connect with the sill beam 2 on the other side of the vehicle.

Using the above technical solution, multiple crossbeams 101 and two longitudinal beams 102 are connected to form a frame structure. The frame structure has high strength and rigidity, which helps to improve the strength and rigidity of the vehicle body. Moreover, the frame structure can be installed as a whole, which helps to improve the manufacturing efficiency of the vehicle.

The aforementioned vehicle component 1 is connected to the sill beam 2 via the longitudinal beam 102. The longitudinal beam 102 and the sill beam 2 can form a large force transmission area, which can better transmit the side impact force, thereby improving the vehicle's side impact performance.

The aforementioned vehicle component 1 can serve as a seat mounting crossbeam. When vehicle component 1 serves as a seat mounting crossbeam, it effectively solves the problem of weak performance at the connection between the seat mounting crossbeam and the sill beam in the prior art.

In some embodiments, the vehicle component 1 includes two crossbeams 101, one of which is connected at both ends to the front ends of two longitudinal beams 102, and the other of which is connected at both ends to the rear ends of two longitudinal beams 102. The two crossbeams 101 and two longitudinal beams 102 can be connected to form a ring-shaped vehicle component 1, which is simple in structure and easy to implement.

In some embodiments, the two longitudinal beams 102 and the multiple transverse beams 101 are all hollow structures with closed cross sections. Compared with transverse beams with a "U"-shaped cross section, the rigidity of the hollow transverse beams 101 with closed cross sections is significantly improved, which can greatly improve the bending and torsional resistance of vehicle component 1, thereby improving the bending and torsional resistance of the entire vehicle.

Furthermore, by employing a closed-section and hollow crossbeam 101, on the one hand, the material thickness of the crossbeam 101 can be significantly reduced while ensuring the vehicle's bending and torsional resistance, thus contributing to the vehicle's lightweight design. On the other hand, while maintaining the vehicle's bending and torsional resistance, the cavity of the crossbeam 101 can be made smaller, thereby allowing the crossbeam 101 to be made thinner, which reduces the space occupied by the crossbeam 101 in the vehicle's height.

In some embodiments, as shown in FIG3, the vehicle component 1 comprises an annular bottom wall 116, an annular top wall 115 located above the bottom wall 116, an inner peripheral wall 113 connecting the inner edge of the bottom wall 116 and the inner edge of the top wall 115, and an outer peripheral wall 114 connecting the outer edge of the bottom wall 116 and the outer edge of the top wall 115. Using the above technical solution, the vehicle component 1 has a hollow annular structure, and the cross-section of the vehicle component 1 is approximately rectangular, which can better provide support and mounting points for the vehicle's seats and battery pack.

In some embodiments, vehicle component 1 is an integral part manufactured from a single tubular metal blank through a tube bending process and a hot air expansion forming process. By combining the tube bending process and the hot air expansion forming process, a ring-shaped and hollow vehicle component 1 can be manufactured, which features a small number of parts and high material utilization. In specific implementations, the material utilization rate can reach over 85%.

In some embodiments, thermoforming materials can be used to manufacture vehicle component 1 to ensure the strength performance of vehicle component 1, further reduce the material thickness of vehicle component 1, and help reduce the weight of vehicle component 1.

In a specific implementation, the vehicle component 1, made from a single tubular metal blank, is a ring-shaped integral frame structure, and the joints at the ends of the vehicle component 1 can be connected by welded parts 112. As a preferred example, the joints at the ends of the vehicle component 1 can be laser-welded to form welded parts 112 after bending the tube and before hot-air expansion molding.

In some embodiments, at least one crossbeam 101 includes multiple crossbeam segments 103 arranged sequentially, with the crossbeam segment 103 closer to the middle of the crossbeam 101 along its length having a thicker material. By adopting the above technical solution and rationally setting the material thickness of each crossbeam segment 103 of the crossbeam 101, the weight of the vehicle component 1 can be reduced while ensuring that the crossbeam 101 uniformly transmits lateral impact forces. Furthermore, setting the material thickness of the crossbeam segment 103 near the end of the crossbeam 101 to be thinner reduces the difficulty of bending the tubular metal blank, thus helping to reduce the processing difficulty of the vehicle component 1. Typically, the material thickness of the crossbeam segment 103 at the end of the crossbeam 101 is the same as the material thickness of the longitudinal beam 102 connected to that end.

Furthermore, adjacent crossbeam segments 103 are connected by a material thickness transition section 104. The material thickness transition section 104 helps ensure the uniform transmission of lateral impact forces. In specific implementation, to ensure the structural performance of the material thickness transition section 104, its length in the longitudinal direction of the crossbeam 101 is not less than 100 times the difference in material thickness between the two crossbeam segments 103 on either side of the material thickness transition section 104.

In practice, vehicle parts 1 can be made from tubular metal blanks of varying thicknesses. Multiple crossbeam sections 103 of varying thicknesses and thickness transition sections 104 of gradually changing thickness can be formed using tubular metal blanks of varying thicknesses.

In some embodiments, the connecting portion is disposed on the side wall of the longitudinal beam 102 on the outer side of the vehicle, and the connecting portion is provided with a first connecting hole 106 for connecting with the sill beam 2. By disposing the connecting portion on the side wall of the longitudinal beam 102 on the outer side of the vehicle, a larger force transmission area can be formed between the longitudinal beam 102 and the sill beam 2.

In practical implementation, the first connecting hole 106 is used to cooperate with the first bolt, and the first bolt can be used to fix the side wall of the longitudinal beam 102 on the outside of the vehicle to the sill beam 2 together.

In practice, multiple first connection holes 106 can be provided on the side wall of the longitudinal beam 102 on the side facing outwards from the vehicle.

As a preferred example, to ensure a large force transmission area between the longitudinal beam 102 and the sill beam 2, the side wall of the longitudinal beam 102 on the outside of the vehicle and the side wall of the sill beam 2 on the inside of the vehicle are stacked and fixedly connected together. By using the side wall of the longitudinal beam 102 on the outside of the vehicle to increase the force transmission area between the vehicle component 1 and the sill beam 2, the vehicle body's ability to resist side impacts can be significantly improved.

In some embodiments, at least one crossbeam 101 is provided with vehicle seat mounting holes 105. The crossbeam 101 of the vehicle component 1 can serve as a seat mounting crossbeam, providing support and mounting points for the vehicle seat. More specifically, the two crossbeams 101 of the vehicle component 1 can serve as a front seat mounting crossbeam and a rear seat mounting crossbeam, respectively.

By adopting the above technical solution, a single vehicle component 1 can replace the six parts in the prior art: the front seat mounting crossbeam, the rear seat mounting crossbeam, the left bracket of the front seat mounting crossbeam, the right bracket of the front seat mounting crossbeam, the left bracket of the rear seat mounting crossbeam, and the right bracket of the rear seat mounting crossbeam. This reduces the number of parts, tooling quantity, and tooling costs.

In specific implementation, a first clearance hole 107 is usually provided on the inner peripheral wall 113 of the vehicle component 1, which is opposite to the first connecting hole 106. The first clearance hole 107 is used to avoid the first bolt and provide an installation channel for the first bolt.

In some embodiments, the vehicle component 1 is provided with a drain hole 111. Providing the drain hole 111 can ensure the quality of electrophoresis inside the vehicle component 1.

In some embodiments, the vehicle component 1 is provided with a positioning hole 110, which can play a positioning role and improve the installation accuracy of the vehicle component 1.

In some embodiments, the vehicle component 1 is provided with a second connection hole 109 for connecting to the vehicle's battery pack. The second connection hole 109 provides a fixing point for the battery pack. In specific implementations, a second bolt that mates with the second connection hole 109 can be used to securely connect the battery pack and the vehicle component 1. More specifically, the second connection hole 109 is typically provided on the bottom wall 116 of the vehicle component 1, and a second clearance hole 108 opposite to the second connection hole 109 is typically provided on the top wall 115 of the vehicle component 1. The second clearance hole 108 is used to avoid the second bolt and provides an installation channel for the second bolt.

As a specific example, vehicle component 1 includes two crossbeams 101 and two longitudinal beams 102. The lengths of the two crossbeams 101 extend in the left-right direction, and the lengths of the two longitudinal beams 102 extend in the front-back direction. The two crossbeams 101 and the two longitudinal beams 102 are connected to form a ring-shaped rectangular frame structure. The corner portion between the crossbeams 101 and the longitudinal beams 102 is a bent section 117 formed by bending. More specifically, the material thickness of the bent section 117, the material thickness of the longitudinal beam 102 connected to the bent section 117, and the material thickness of the crossbeam segment 103 at the end of the crossbeam 101 connected to the bent section 117 are all the same.

As shown in Figures 4 and 5, the present invention also proposes a vehicle body structure, including two sill beams 2 and the vehicle component 1 described in any of the above-mentioned claims, wherein the two longitudinal beams 102 of the vehicle component 1 are respectively fixedly connected to the two sill beams 2.

The present invention also proposes a vehicle including the above-described body structure.

The above embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. In the description of this specification, the reference to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., means that a specific feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples. Furthermore, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation based on the coordinate system in Figure 1, and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

Claims (8)

1. A vehicle component, the vehicle component (1) being adapted to be integrally installed in a vehicle, characterized in that the vehicle component (1) comprises two longitudinal beams (102) arranged at intervals in a left-right direction and a plurality of transverse beams (101) arranged at intervals in a front-rear direction, the plurality of transverse beams (101) are connected between the two longitudinal beams (102), the two longitudinal beams (102) are provided with connecting parts, the connecting part on one longitudinal beam (102) is used for connecting with a threshold beam (2) on one side of the vehicle, and the connecting part on the other longitudinal beam (102) is used for connecting with a threshold beam (2) on the other side of the vehicle;

The vehicle part (1) is an integral part manufactured by adopting a tubular metal blank through a pipe bending process and a hot air expansion forming process;

At least one cross beam (101) comprises a plurality of cross beam sections (103) which are sequentially arranged, the material thickness of the cross beam section (103) which is closer to the middle position of the cross beam (101) in the length direction in the adjacent two cross beam sections (103) is thicker, and the adjacent two cross beam sections (103) are connected through a material thickness transition section (104).

2. The vehicle component according to claim 1, characterized in that it comprises two cross members (101), one cross member (101) being connected at both ends to one end of two longitudinal members (102), respectively, and the other cross member (101) being connected at both ends to the other end of two longitudinal members (102), respectively.

3. The vehicle component according to claim 1, characterized in that two of the stringers (102) and a plurality of the cross-beams (101) are hollow structures of closed cross-section.

4. The vehicle component according to claim 1, characterized in that the vehicle component (1) is constituted by a bottom wall (116) in the shape of a ring, a top wall (115) located above the bottom wall (116) in the shape of a ring, an inner peripheral wall (113) connected between an inner edge of the bottom wall (116) and an inner edge of the top wall (115), and an outer peripheral wall (114) connected between an outer edge of the bottom wall (116) and an outer edge of the top wall (115).

5. Vehicle component according to claim 1, characterized in that the connection is provided on a side wall of the longitudinal beam (102) on the vehicle exterior side, which connection is provided with a first connection hole (106) for connection with the rocker beam (2).

6. The vehicle component according to claim 1, characterized in that at least one of the cross beams (101) is provided with a vehicle seat mounting hole (105);

and/or, the vehicle component (1) is provided with a liquid leakage hole (111);

And/or the vehicle component (1) is provided with a positioning hole (110);

And/or, the vehicle component (1) is provided with a second connection hole (109) for connecting with a battery pack of the vehicle.

7. A vehicle body structure, characterized by comprising two rocker beams (2) and a vehicle part (1) according to any one of claims 1-6, the two longitudinal beams (102) of the vehicle part (1) being connected to the two rocker beams (2) respectively.

8. A vehicle comprising the vehicle body structure according to claim 7.