Vehicle part, vehicle body structure and vehicle

Abstract

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

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and particularly relates to a vehicle component, a vehicle body structure and a vehicle. Background Art

[0002] The seat mounting crossbeam of a vehicle not only serves as a mounting support for the seat, but also serves as a key force transmission component during a side impact of the vehicle. The seat mounting crossbeam of the vehicle needs to have good strength and stiffness to prevent obvious deformation of the occupant compartment and the battery pack of the vehicle during a side impact of the vehicle.

[0003] As Figure 6 shown, in the existing vehicle body structure, the seat mounting crossbeam 3 is usually a beam-shaped member with a "C" - shaped cross - section, and both ends of the seat mounting crossbeam 3 are respectively connected to two vehicle body sill beams 4 of the vehicle. The existing seat mounting crossbeam and vehicle body structure have the following technical problems: In order to ensure the bending and torsional resistance of the whole vehicle, the cavity of the seat mounting crossbeam often needs to be designed to be relatively large, resulting in the seat mounting crossbeam occupying too much vehicle body height space.

[0004] The connection strength between the seat mounting crossbeam and the vehicle body sill beam is relatively low. During a side impact of the vehicle, this connection part is usually a weak point in the vehicle body structure.

[0005] By adding reinforcing members to the seat mounting crossbeam, the strength of the seat mounting crossbeam can be improved, but it will increase the number of components and the weight of the whole vehicle, which is not conducive to the lightweight design of the vehicle.

[0006] In the existing vehicle body structure, usually two seat mounting crossbeams are required to provide mounting points for a row of vehicle seats. During the manufacturing process of the vehicle, these two seat mounting crossbeams need to be installed separately, resulting in low manufacturing efficiency. Summary of the Invention

[0007] The object of the present invention is to provide a vehicle component, a vehicle body structure and a vehicle to alleviate or eliminate at least one of the above - mentioned technical problems.

[0008] A vehicle component according to the present invention is adapted to be integrally installed in a vehicle. The vehicle component includes two longitudinal beams arranged at intervals in the left - right direction and multiple cross - beams arranged at intervals in the front - rear direction. Multiple cross - beams are all connected between the two longitudinal beams. Connection parts are provided on both longitudinal beams. The connection part on one longitudinal beam is used to connect with the sill beam on one side of the vehicle, and the connection part on the other longitudinal beam is used to connect with the sill beam on the other side of the vehicle.

[0009] Optionally, it includes two of the cross beams, with one end of one cross beam respectively connected to one end of two of the longitudinal beams, and the two ends of the other cross beam respectively connected to the other ends of the two longitudinal beams.

[0010] Optionally, the two longitudinal beams and multiple cross beams are all hollow structures with closed cross-sections.

[0011] Optionally, the vehicle component is composed of an annular bottom wall, an annular top wall located above the bottom wall, an inner peripheral wall connected between the inner edges of the bottom wall and the top wall, and an outer peripheral wall connected between the outer edges of the bottom wall and the top wall.

[0012] Optionally, the vehicle component is a one-piece part made from a single tubular metal blank through a tube bending process and a hot gas inflation forming process.

[0013] Optionally, at least one of the cross beams includes multiple cross beam segments arranged in sequence, and the material thickness of the cross beam segment closer to the middle position in the length direction of the cross beam is thicker among two adjacent cross beam segments; the two adjacent cross beam segments are connected by a material thickness transition segment.

[0014] Optionally, the connecting part is arranged on the side wall of the longitudinal beam on the outer side of the vehicle, and a first connection hole for connecting with the sill beam is arranged on the connecting part.

[0015] Optionally, vehicle seat mounting holes are arranged on at least one of the cross beams.

[0016] Optionally, liquid leakage holes are arranged on the vehicle component.

[0017] Optionally, positioning holes are arranged on the vehicle component.

[0018] Optionally, second connection holes for connecting with the battery pack of the vehicle are arranged on the vehicle component.

[0019] The present invention also provides a vehicle body structure, including two sill beams and the vehicle component according to any one of the above, and the two longitudinal beams of the vehicle component are respectively connected to the two sill beams.

[0020] The present invention also provides a vehicle, including the above vehicle body structure..

[0021] The present invention helps to improve the strength and stiffness of the vehicle body, helps to improve the side impact performance of the vehicle, helps to improve the manufacturing efficiency of the vehicle, and can reduce the requirements for the material thickness and cavity size of the vehicle components on the premise of ensuring the vehicle body performance, and has the characteristics of fewer components and high material utilization rate. Description of the Drawings

[0022] Figure 1Schematic structural diagram of the vehicle component in some embodiments; Figure 2 Top view of the vehicle component in some embodiments; Figure 3 Cross-sectional schematic diagram of the vehicle component in some embodiments; Figure 4 Schematic structural diagram of the vehicle body structure in some embodiments; Figure 5 Top view of the vehicle body structure in some embodiments; Figure 6 Schematic structural diagram of the vehicle body structure in the background art.

[0023] In the figure, 1 - vehicle component, 2 - sill beam, 3 - seat mounting cross beam, 4 - vehicle body sill beam, 101 - cross beam, 102 - longitudinal beam, 103 - cross beam section, 104 - material thickness transition section, 105 - seat mounting hole, 106 - first connection hole, 107 - first avoidance hole, 108 - second avoidance hole, 109 - second connection hole, 110 - positioning hole, 111 - liquid leakage hole, 112 - welding part, 113 - inner peripheral wall, 114 - outer peripheral wall, 115 - top wall, 116 - bottom wall, 117 - bending section. Detailed implementation manners

[0024] The following will illustrate the implementation manners of the present invention 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 implementation manners. 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, rather than for limiting the protection scope of the present invention.

[0025] It should be noted that the diagrams provided in the following embodiments only schematically illustrate the basic concept of the present invention. The diagrams only show the components related to the present invention, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, number, and ratio of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0026] Such as Figure 1 And Figure 2A vehicle component 1 as shown is adapted to be integrally installed in a vehicle. The vehicle component 1 includes two longitudinal beams 102 spaced apart in the left - right direction and multiple cross - beams 101 spaced apart in the front - rear direction. The multiple cross - beams 101 are all connected between the two longitudinal beams 102. Connection parts are provided on both of the two longitudinal beams 102. The connection part on one longitudinal beam 102 is used to connect with the sill beam 2 on one side of the vehicle, and the connection part on the other longitudinal beam 102 is used to connect with the sill beam 2 on the other side of the vehicle.

[0027] Adopting the above - mentioned technical solution, the multiple cross - beams 101 and the two longitudinal beams 102 are connected to form a frame structure. The frame structure has high strength and stiffness, which helps to improve the strength and stiffness of the vehicle body. Moreover, the frame structure can be integrally installed, which helps to improve the manufacturing efficiency of the vehicle.

[0028] The above - mentioned vehicle component 1 is connected to the sill beam 2 through the longitudinal beam 102. A relatively large force - transmission area can be formed between the longitudinal beam 102 and the sill beam 2, which can better transmit the side - impact force, thereby improving the side - impact performance of the vehicle.

[0029] The above - mentioned vehicle component 1 can be used as a seat - mounting cross - beam of the vehicle. When the vehicle component 1 is used as a seat - mounting cross - beam, it can effectively solve the problem of weak performance at the connection part between the seat - mounting cross - beam and the sill beam in the prior art.

[0030] In some embodiments, the vehicle component 1 includes two cross - beams 101. The two ends of one cross - beam 101 are respectively connected to the front ends of the two longitudinal beams 102, and the two ends of the other cross - beam 101 are respectively connected to the rear ends of the two longitudinal beams 102. By using the two cross - beams 101 and the two longitudinal beams 102, a ring - shaped vehicle component 1 can be connected and formed, which has the characteristics of simple structure and easy implementation.

[0031] In some embodiments, both the two longitudinal beams 102 and the multiple cross - beams 101 are hollow structures with closed cross - sections. Compared with the cross - beam in the shape of "several", the stiffness of the cross - beam 101 with a closed and hollow cross - section is significantly improved, which can greatly improve the bending and torsional resistance of the vehicle component 1, and further improve the bending and torsional resistance of the whole vehicle.

[0032] Moreover, by using the cross - beam 101 with a closed and hollow cross - section, on the one hand, on the premise of ensuring the bending and torsional resistance of the whole vehicle, the material thickness of the cross - beam 101 can be greatly reduced, which helps to improve the lightweight level of the vehicle. On the other hand, on the premise of ensuring the bending and torsional resistance of the whole vehicle, the cavity of the cross - beam 101 can be made smaller, and then the cross - beam 101 can be made thinner, which can reduce the body - height space occupied by the cross - beam 101.

[0033] In some embodiments, such as Figure 3As shown in the figure, the vehicle component 1 is composed of an annular bottom wall 116, an annular top wall 115 located above the bottom wall 116, an inner peripheral wall 113 connected between the inner edges of the bottom wall 116 and the top wall 115, and an outer peripheral wall 114 connected between the outer edges of the bottom wall 116 and the top wall 115. With the above technical solution, the vehicle component 1 is 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 seat and battery pack.

[0034] In some embodiments, the vehicle component 1 is a one-piece formed by using a tubular metal blank through a tube bending process and a hot gas bulging forming process. By combining the tube bending process and the hot gas bulging forming process, the vehicle component 1 in the shape of a ring and hollow can be formed, which has the characteristics of fewer parts and high material utilization rate. In specific implementation, the material utilization rate can reach more than 85%.

[0035] In some embodiments, hot forming materials can be used to manufacture the vehicle component 1 to ensure the strength performance of the vehicle component 1, which can further reduce the material thickness of the vehicle component 1 and contribute to the weight reduction of the vehicle component 1.

[0036] In specific implementation, the vehicle component 1 made of a tubular metal blank is an integral frame structure in the shape of a ring, and the butt joint part of the vehicle component 1 can be connected by a welding part 112. As a preferred example, laser welding can be performed on the butt joint part of the vehicle component 1 after tube bending and before hot gas bulging forming to form the welding part 112.

[0037] In some embodiments, at least one cross beam 101 includes multiple cross beam segments 103 arranged in sequence, and the material thickness of the cross beam segment 103 closer to the middle position in the length direction of the cross beam 101 among two adjacent cross beam segments 103 is thicker. With the above technical solution, by reasonably setting the material thickness of each cross beam segment 103 of the cross beam 101, the weight of the vehicle component 1 can be reduced on the basis of ensuring the uniform transmission of side collision forces by the cross beam 101. Moreover, setting the material thickness of the cross beam segment 103 near the end of the cross beam 101 to be thinner can reduce the difficulty of bending and processing the tubular metal blank, which helps to reduce the processing difficulty of the vehicle component 1. Usually, the material thickness of the cross beam segment 103 at the end of the cross beam 101 is the same as the material thickness of the longitudinal beam 102 connected to the end.

[0038] Furthermore, two adjacent cross beam segments 103 are connected by a material thickness transition section 104. Setting the material thickness transition section 104 helps to ensure the uniform transmission of side collision forces. In specific implementation, in order to ensure the structural performance of the material thickness transition section 104, the length of the material thickness transition section 104 in the length direction of the cross beam 101 is not less than 100 times the material thickness difference between the cross beam segments 103 on both sides of the material thickness transition section 104.

[0039] In specific implementation, a tubular metal blank with unequal wall thicknesses can be used to fabricate the vehicle component 1, and the tubular metal blank with unequal wall thicknesses is utilized to form multiple crossbeam segments 103 with unequal wall thicknesses and a wall thickness transition segment 104 with a gradually changing wall thickness.

[0040] 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 a first connection hole 106 for connecting with the sill beam 2 is provided on the connecting portion. Disposing the connecting portion on the side wall of the longitudinal beam 102 on the outer side of the vehicle can form a relatively large force transmission area between the longitudinal beam 102 and the sill beam 2.

[0041] In specific implementation, the first connection hole 106 is used to cooperate with a first bolt, and the side wall of the longitudinal beam 102 on the outer side of the vehicle and the sill beam 2 can be fixedly connected together by using the first bolt.

[0042] In specific implementation, a plurality of first connection holes 106 can be provided on the side wall of the longitudinal beam 102 on the outer side of the vehicle.

[0043] As a preferred example, in order to ensure a relatively large force transmission area between the longitudinal beam 102 and the sill beam 2, the side wall of the longitudinal beam 102 on the outer side of the vehicle and the side wall of the sill beam 2 on the inner side of the vehicle are overlapped and fixedly connected together. Utilizing the side wall of the longitudinal beam 102 on the outer side of the vehicle to increase the force transmission area between the vehicle component 1 and the sill beam 2 can significantly enhance the side collision resistance of the vehicle body.

[0044] In some embodiments, vehicle seat mounting holes 105 are provided on at least one crossbeam 101. The crossbeam 101 of the vehicle component 1 can serve as a seat mounting crossbeam to provide support and mounting points for the vehicle seat. More specifically, the two crossbeams 101 of the vehicle component 1 can respectively serve as the front seat mounting crossbeam and the rear seat mounting crossbeam.

[0045] By adopting the above technical solution, one vehicle component 1 can replace six parts in the prior art, namely 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, reducing the number of components, and can reduce the number of toolings and save tooling costs.

[0046] In specific implementation, a first avoidance hole 107 opposite to the first connection hole 106 is usually provided on the inner peripheral wall 113 of the vehicle component 1, and the first avoidance hole 107 is used to avoid the first bolt and provide an installation channel for the first bolt.

[0047] In some embodiments, a liquid leakage hole 111 is provided on the vehicle component 1. Providing the liquid leakage hole 111 can ensure the electrophoresis quality inside the vehicle component 1.

[0048] In some embodiments, a positioning hole 110 is provided on the vehicle component 1. The positioning hole 110 can play a positioning role and improve the installation accuracy of the vehicle component 1.

[0049] In some embodiments, a second connection hole 109 for connecting with the battery pack of the vehicle is provided on the vehicle component 1. The second connection hole 109 can provide a fixed point for the battery pack. In specific implementation, a second bolt cooperating with the second connection hole 109 can be used to fixedly connect the battery pack and the vehicle component 1. More specifically, the second connection hole 109 is usually provided on the bottom wall 116 of the vehicle component 1, and a second avoidance hole 108 opposite to the second connection hole 109 is usually provided on the top wall 115 of the vehicle component 1. The second avoidance hole 108 is used to avoid the second bolt and provide an installation channel for the second bolt.

[0050] As a specific example, the vehicle component 1 includes two cross beams 101 and two longitudinal beams 102. The lengths of the two cross beams 101 extend in the left - right direction, and the lengths of the two longitudinal beams 102 extend in the front - rear direction. The two cross beams 101 and the two longitudinal beams 102 are connected to form an annular rectangular frame structure. The corner part between the cross beam 101 and the longitudinal beam 102 is a bending section 117 formed by bending. More specifically, the material thickness of the bending section 117, the material thickness of the longitudinal beam 102 connected to the bending section 117, and the material thickness of the cross beam section 103 at the end of the cross beam 101 connected to the bending section 117 are the same.

[0051] As Figure 4 and Figure 5 shown, the present invention also provides a vehicle body structure, including two sill beams 2 and the vehicle component 1 described in any one of the above. The two longitudinal beams 102 of the vehicle component 1 are respectively fixedly connected to the two sill beams 2.

[0052] The present invention also provides a vehicle, including the above - mentioned vehicle body structure.

[0053] The above embodiments are merely preferred embodiments given to fully illustrate the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention. In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics of the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic 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 a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0054] In the description of the present invention, it should be understood that the orientations indicated by terms such as "upper", "lower", "front", "rear", "left", "right", etc. are the orientations represented based on the coordinate system in the Figure 1 accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention.

Claims

1. A vehicle component, the vehicle component (1) being suitable for being integrally installed in a vehicle, characterized in that: The vehicle component (1) comprises two longitudinal beams (102) arranged at intervals in the left-right direction and a plurality of cross beams (101) arranged at intervals in the front-back direction, the plurality of cross beams (101) being connected between the two longitudinal beams (102), the two longitudinal beams (102) being provided with connecting portions, the connecting portion on one longitudinal beam (102) being used to connect to a sill beam (2) on one side of the vehicle, and the connecting portion on the other longitudinal beam (102) being used to connect to a sill beam (2) on the other side of the vehicle.

2. The vehicle component according to claim 1, characterized in that It comprises two cross beams (101), wherein two ends of one cross beam (101) are respectively connected to one end of the two longitudinal beams (102), and two ends of the other cross beam (101) are respectively connected to the other end of the two longitudinal beams (102).

3. The vehicle component according to claim 1, characterized in that The two longitudinal beams (102) and the plurality of transverse beams (101) are all hollow structures with closed cross-sections.

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

5. The vehicle component according to claim 1, characterized in that The vehicle component (1) is an integral part made from a tubular metal blank through a tube bending process and a hot air bulging forming process.

6. The vehicle component according to claim 1, characterized in that At least one of the crossbeams (101) comprises a plurality of crossbeam sections (103) arranged in sequence, wherein the crossbeam section (103) closer to the middle position in the length direction of the crossbeam (101) of two adjacent crossbeam sections (103) has a thicker material thickness; and the two adjacent crossbeam sections (103) are connected via a material thickness transition section (104).

7. The vehicle component according to claim 1, characterized in that The connecting portion is arranged on a side wall of the longitudinal beam (102) on the side close to the outside of the vehicle, and is provided with a first connecting hole (106) for connecting to the door sill beam (2).

8. The vehicle component according to claim 1, characterized in that A vehicle seat mounting hole (105) is provided on at least one of the crossbeams (101); And / or, the vehicle component (1) is provided with a liquid leakage hole (111); And / or, a positioning hole (110) is provided on the vehicle component (1); And / or, the vehicle component (1) is provided with a second connection hole (109) for connecting to a battery pack of the vehicle.

9. A vehicle body structure, characterized in that: It comprises two sill beams (2) and a vehicle component (1) as claimed in any one of claims 1 to 8, wherein the two longitudinal beams (102) of the vehicle component (1) are respectively connected to the two sill beams (2).

10. A vehicle, characterized in that: It comprises the vehicle body structure as claimed in claim 9.

Images