Vehicle body structure and vehicle

By setting up a subframe connection in the body structure, the load force is transmitted from the front end to the rear end and gathered into the passenger compartment, the problem of poor load force transmission is solved, the overall stiffness of the front compartment and vehicle performance of the vehicle are improved, and the comfort and handling of the vehicle are improved.

WO2025176210A1PCT designated stage Publication Date: 2025-08-28BYD CO LTD
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Patent Information

Application Number
PCT/CN2025/078637
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-02-23
Filing Date
2025-02-21
Publication Date
2025-08-28

AI Technical Summary

Technical Problem

The load force transmitted by vehicles in related technologies is poor when they are hit by a forward collision, which affects the overall stiffness of the entire front cabin of the vehicle and thus affects the performance of the entire vehicle.

Method used

By providing a subframe connection part in the vehicle body structure, including a first connection part and a second connection part, the second connection part is located on the rear side of the first connection part, and the length of the connection between the two first connection parts is greater than the length of the connection between the two second connection parts in the left and right direction, the load force is transmitted from the front end to the rear end and gradually transmitted to the passenger compartment, improving the integrity and dynamic stiffness performance between the front chamber and the passenger compartment.

Benefits of technology

It improves the stiffness and performance of the body structure and improves the comfort and handling of the vehicle.

✦ Generated by Eureka AI based on patent content.

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    Figure CN2025078637_28082025_PF_FP_ABST
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Abstract

A vehicle provided with a vehicle body structure (500). The vehicle body structure (500) is provided with a subframe connecting portion (3) which is adapted to be connected to a front subframe assembly (2) and comprises first connecting portions (31) and second connecting portions (32). In a first direction, each second connecting portion (32) is located on a rear side of the corresponding first connecting portion (31). In a second direction, the two first connecting portions (31) are arranged spaced apart from each other, the two second connecting portions (32) are arranged spaced apart from each other, and the length of a connecting line between the two first connecting portions (31) is greater than that of a connecting line between the two second connecting portions (32).
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Description

Body structure and vehicle

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure claims priority to Chinese patent application number 202420350761.9, filed with the China Patent Office on February 23, 2024, entitled “Body Structure and Vehicle,” the entire contents of which are incorporated by reference into this disclosure. Technical Field

[0003] The present disclosure relates to the technical field of vehicle manufacturing, and in particular, to a vehicle body structure and a vehicle. Background Art

[0004] In the related art, the load force of the vehicle is not transmitted well when it is subjected to a frontal collision, which affects the overall stiffness of the entire front cabin of the vehicle and further affects the performance of the entire vehicle. Summary of the Invention

[0005] The present disclosure provides a vehicle body structure and a vehicle to solve the above-mentioned problems in the related art.

[0006] To achieve the above objectives, one aspect of the present disclosure provides a vehicle body structure, comprising:

[0007] A subframe connecting portion, adapted to be connected to the front subframe assembly;

[0008] Wherein, the sub-frame connecting portion includes a first connecting portion and a second connecting portion, and in the first direction, the second connecting portion is located at the rear side of the first connecting portion;

[0009] In the second direction, two of the first connection parts are spaced apart, two of the second connection parts are spaced apart, and a length of a line connecting the two of the first connection parts is greater than a length of a line connecting the two of the second connection parts;

[0010] The first direction is set as the front-rear direction of the vehicle, and the second direction is set as the left-right direction of the vehicle.

[0011] Optionally, the subframe connection portion further includes a third connection portion. In the first direction, the third connection portion is located between the first connection portion and the second connection portion. In the second direction, there are two third connection portions, which are spaced apart along the second direction. The length of the line connecting the two third connection portions is less than the length of the line connecting the two first connection portions.

[0012] Optionally, the length of a line between two of the third connecting portions is greater than the length of a line between two of the second connecting portions.

[0013] Optionally, the vehicle body structure further includes a dash panel lower cross beam; the vehicle body structure includes two front longitudinal beams, the two front longitudinal beams are spaced apart in the second direction, and both ends of the dash panel lower cross beam are respectively connected to the two front longitudinal beams;

[0014] In the first direction, the second connection portion is disposed on the front side of the dash panel lower cross member.

[0015] Optionally, the vehicle body structure further includes a central channel connected to a side of the front panel lower cross beam facing away from the second connecting portion.

[0016] Optionally, the front longitudinal beam includes a front section and a rear section connected in sequence in the first direction, the first connecting portion is located in the front section, the second connecting portion is located in the rear section, the rear section is an integrally formed structure, and the rear section is connected to the lower cross beam of the front panel.

[0017] Optionally, the front section is provided with a mounting column extending along the third direction, and the first connecting portion is formed on the mounting column.

[0018] Optionally, in the third direction, a mounting block is provided at the lower end of the mounting column, and the mounting block is formed with the first connecting portion.

[0019] Optionally, in the second direction, the cross-sectional area of ​​the mounting block is larger than the cross-sectional area of ​​the mounting column.

[0020] Optionally, the vehicle body structure further includes a column crossbeam, and both ends of the column crossbeam are respectively connected to the two mounting columns.

[0021] Optionally, the vehicle body structure further comprises a wheel cover, the wheel cover being connected to the front longitudinal beam, and the wheel cover being arranged on the rear side of the mounting pillar in the first direction;

[0022] The vehicle body structure further comprises a column longitudinal beam, the ends of which are respectively connected to the mounting column and the wheel housing;

[0023] Wherein, in the third direction, the pillar longitudinal beam and the front longitudinal beam are spaced apart.

[0024] Optionally, the vehicle body structure includes a wishbone mounting seat, and the wheel cover is connected to the wishbone mounting seat.

[0025] Optionally, the vehicle body structure further includes a dash panel cross beam, both ends of which are connected to the two front longitudinal beams, and in the first direction, the second connecting portion is located between the dash panel cross beam and the dash panel lower cross beam.

[0026] Optionally, the front longitudinal beam is formed with a reinforcing rib, and the reinforcing rib is connected to the second connecting portion;

[0027] The reinforcing ribs extend along the first direction, or the reinforcing ribs extend along the second direction, or the reinforcing ribs extend along the first direction and the second direction.

[0028] Optionally, the vehicle body structure includes a fork arm mounting seat, the fork arm mounting seat is connected to the front longitudinal beam, and the third connecting portion is provided on the fork arm mounting seat.

[0029] Optionally, the fork arm mounting seat includes a side plate and a bottom plate connected to each other, the bottom plate and the side plate are connected to the front longitudinal beam, the bottom plate is located at the bottom of the front longitudinal beam, the side plate is located on one side of the front longitudinal beam in the second direction, the bottom plate is formed with the third connecting portion, and the side plate is formed with a fork arm connecting portion.

[0030] A second aspect of the present disclosure further provides a vehicle, comprising the above-mentioned vehicle body structure, the vehicle further comprising a front subframe assembly, the front subframe assembly being connected to the subframe connecting portion.

[0031] Optionally, the vehicle body structure includes two mounting posts and a post crossbeam, the two ends of the post crossbeam are respectively connected to the two mounting posts, the front subframe assembly includes a subframe front crossbeam, the two ends of the subframe front crossbeam are connected to the mounting posts, and the post crossbeam, the subframe front crossbeam and the two mounting posts form a first annular structure.

[0032] Optionally, the vehicle body structure further includes a front cabin stabilizer bar, two front longitudinal beams spaced apart in a second direction, and two wheel covers spaced apart in a second direction, the two ends of the front cabin stabilizer bar being connected to the two wheel covers respectively, and the front cabin stabilizer bar, the two wheel covers, a portion of the two front longitudinal beams and a portion of the front subframe assembly constitute an N-type ring structure.

[0033] Optionally, the vehicle body structure includes two front longitudinal beams and a front dash cross beam, the front subframe assembly includes a subframe rear cross beam, both ends of the front dash cross beam and both ends of the subframe rear cross beam are respectively connected to the two front longitudinal beams, and the front dash cross beam, the subframe rear cross beam and a portion of the two front longitudinal beams constitute a second annular structure.

[0034] The above technical solution, by placing the second connection part close to the rear side, that is, close to the passenger compartment of the vehicle in the first direction, and at the same time, making the length of the line between the two first connection parts greater than the length of the line between the two second connection parts in the second direction, when the entire front compartment of the entire body structure is subjected to a positive load, when the load force is transmitted from the first connection part to the second connection part, it can be transmitted from the front end to the rear end of the body structure, and gradually transmitted to the passenger compartment, and at the same time, the load force can be transmitted from the outside to the inside of the body structure, and can be converged and transmitted toward the passenger compartment, thereby improving the integrity between the entire front compartment and the passenger compartment, and then improving the dynamic stiffness performance of the entire front compartment, that is, the dynamic stiffness performance of the front compartment assembly and the front subframe, so that the stiffness and performance of the entire body structure are improved, which can improve the comfort and handling of the vehicle.

[0035] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The accompanying drawings are used to provide an understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0037] FIG1 is a schematic structural diagram of the entire front compartment of a vehicle body structure in one embodiment of the present disclosure.

[0038] FIG2 is a split schematic diagram illustrating the assembly relationship between the front compartment assembly and the front subframe assembly in one embodiment of the present disclosure.

[0039] FIG3 is a partial bottom view of the assembly relationship between the front compartment assembly and the front sub-frame assembly in one embodiment of the present disclosure.

[0040] FIG4 is a schematic diagram of the force transmission effect of the entire front compartment of the vehicle body structure in one embodiment of the present disclosure.

[0041] FIG5 is a schematic structural diagram of a first connection point in an embodiment of the present disclosure.

[0042] FIG6 is a schematic structural diagram of a third connection point in an embodiment of the present disclosure.

[0043] FIG7 is a schematic structural diagram of a second connection point in an embodiment of the present disclosure.

[0044] FIG8 is a schematic structural diagram of a first annular structure in one embodiment of the present disclosure.

[0045] FIG9 is a schematic structural diagram of an n-type ring structure in one embodiment of the present disclosure.

[0046] FIG10 is a schematic structural diagram of a second annular structure in one embodiment of the present disclosure.

[0047] FIG11 is a structural block diagram of a vehicle according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0048] The following describes the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended to limit the present disclosure.

[0049] In this disclosure, unless otherwise indicated, directional terms such as "upper," "lower," "left," and "right" are generally defined relative to the drawing plane of the accompanying drawings, and "inner" and "outer" refer to the inside and outside of the relevant component. Furthermore, the terms "first," "second," and the like are used solely for purposes of distinction and are not to be construed as indicating or implying relative importance.

[0050] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they may refer to a fixed connection, a detachable connection, or an integral connection. They may be directly connected or indirectly connected through an intermediate medium, or they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on specific circumstances.

[0051] With the development of new energy vehicles, lightweighting is the core technology and important development direction of the automotive industry. Lightweighting means reducing the weight of the vehicle without reducing the safety, reliability, comfort and cost control of the vehicle, thereby improving the vehicle's power economy.

[0052] The layout of a vehicle's front cabin is becoming increasingly important, requiring the entire cabin to maintain both lightweight and high rigidity. This is because the vibration characteristics of a vehicle are closely related to body rigidity. A high-rigidity body not only facilitates suspension support, ensuring proper functioning of vehicle systems, but also improves vibration characteristics. Reduced vehicle weight also reduces the yaw inertia of the suspension, thereby ensuring vehicle handling performance.

[0053] The connection between the front cabin assembly and the front subframe assembly in related technologies often only considers the layout of related components in the front cabin, without considering the impact of the overall stiffness performance of the entire front cabin. When the entire front cabin of the vehicle is hit by a collision, the load force is not transmitted well, affecting the overall stiffness of the entire front cabin of the vehicle, and thus affecting the performance of the entire vehicle.

[0054] As shown in FIG. 1 to FIG. 10 , one aspect of the present disclosure provides a vehicle body structure 500 including a front compartment assembly 1 .

[0055] The front cabin assembly 1 is provided with a subframe connecting portion 3 , which is suitable for connecting with the front subframe assembly 2 .

[0056] The subframe connection portion 3 includes a first connection portion 31 and a second connection portion 32. In the first direction, the second connection portion 32 is located on the rear side of the first connection portion 31; in the second direction, there are two first connection portions 31 and two second connection portions 32. The two first connection portions 31 are arranged at intervals, and the two second connection portions 32 are arranged at intervals. The length of the line connecting the two first connection portions 31 is greater than the length of the line connecting the two second connection portions 32.

[0057] Among them, the front subframe assembly 2 can be provided with a matching portion 4, the matching portion 4 includes a first matching portion 41 and a second matching portion 42, the first connecting portion 31 is connected to the first matching portion 41 to form a first connection point, and the second connecting portion 32 is connected to the second matching portion 42 to form a second connection point.

[0058] The first direction is set as the front-rear direction of the vehicle 600 , and the second direction is set as the left-right direction of the vehicle 600 .

[0059] The connection and cooperation between the connecting portion 3 and the matching portion 4 enables the front sub-frame assembly 2 to be connected to the front cabin assembly 1 , and the front sub-frame assembly 2 is located below the front cabin assembly 1 .

[0060] In the above technical solution, by moving the second connection part closer to the rear side, that is, closer to the passenger compartment of the vehicle 600 in the first direction, and at the same time, in the second direction, making the length of the line between the two first connection parts greater than the length of the line between the two second connection parts, when the entire front compartment of the entire body structure 500 is subjected to a positive load, when the load force is transmitted from the first connection part to the second connection part, it can be transmitted from the front end to the rear end of the body structure 500, and gradually transmitted to the passenger compartment. At the same time, the load force can be transmitted from the outside to the inside of the body structure 500, and can be converged and transmitted toward the passenger compartment, thereby improving the integrity between the entire front compartment and the passenger compartment, and then improving the dynamic stiffness performance of the entire front compartment, that is, the dynamic stiffness performance of the front compartment assembly and the front subframe, so that the stiffness and performance of the entire body structure 500 are improved, which can improve the comfort and handling of the vehicle 600.

[0061] Optionally, in one embodiment of the present disclosure, the vehicle body structure 500 further includes a dash panel lower cross member 7, and the front compartment assembly 1 includes two front longitudinal beams 11 spaced apart in the second direction. The two ends of the dash panel lower cross member 7 are respectively connected to the two front longitudinal beams 11. In the first direction, the second connecting portion 32 is disposed on the front side of the dash panel lower cross member 7.

[0062] Optionally, the connecting portion 3 is provided on the front longitudinal beam 11, and the dash panel lower cross member 7 is connected to the front longitudinal beam 11 near the second connection point. By positioning the dash panel lower cross member 7 near the second connection point, the positive load force can be transmitted to the dash panel lower cross member 7 when it reaches the second connection point, thereby distributing the load force and improving the dynamic stiffness of the entire front compartment.

[0063] Optionally, in one embodiment of the present disclosure, the vehicle body structure 500 further includes a central tunnel 5, which is connected to the side of the dash panel lower cross member 7 facing away from the second connection portion 32. The central tunnel 5 is configured to connect to and support the battery pack 6. The central tunnel 5 provides support for the passenger compartment. Furthermore, when the positive load is transmitted to the second connection point, it is also transmitted to the central tunnel 5, thereby improving the dynamic stiffness of the entire front compartment of the vehicle body structure 500.

[0064] Optionally, in one embodiment of the present disclosure, there are two first connection points and two second connection points, each symmetrically arranged about an axis extending in the first direction. In the second direction, the two first connection points and the two second connection points are respectively on either side of the central tunnel 5. This arrangement allows the positive load acting on the entire front compartment of the vehicle body structure 500 to be transmitted from both sides of the central tunnel 5 and converged into the central tunnel 5, thereby improving the performance of the entire front compartment. Furthermore, the symmetrical arrangement of the two first connection points and the two second connection points can also improve the balance performance of the entire front compartment.

[0065] Alternatively, in another embodiment of the present disclosure, the number of the first connection points and the second connection points may be greater and even, and may be symmetrically arranged about an axis extending along the first direction. This arrangement can improve the connection strength between the front compartment assembly 1 and the front subframe assembly 2.

[0066] Optionally, in one embodiment of the present disclosure, the front longitudinal beam 11 includes a front section 111 and a rear section 112 connected in sequence in a first direction, the first connecting portion 31 is located in the front section 111, the second connecting portion 32 is located in the rear section 112, the rear section 112 is an integrally formed structure, and the rear section 112 is connected to the lower cross beam 7 of the front panel.

[0067] The front section 111 and rear section 112 are interconnected, and the rear section 112 can extend to connect with the side panels and door sills of the passenger compartment assembly. In other words, the aforementioned positive load force can be transmitted to the side panels and door sills of the passenger compartment assembly through the second connection point, thereby better distributing the load and improving the integrity of the vehicle body structure 500. The integral molding of the rear section 112 can enhance the structural strength of the rear section 112 itself, as well as the strength of its connection with the dash panel lower cross member 7, the side panels, and the door sill, thereby improving the integrity of the front compartment assembly 1 and the passenger compartment assembly.

[0068] Optionally, in one embodiment of the present disclosure, a mounting post 12 extending in a third direction is provided at one end of the front section 111 away from the rear section 112 in the first direction, and the first connecting portion 31 is formed on the mounting post 12. The provision of the mounting post 12 facilitates the connection between the front longitudinal beam 11 of the front compartment assembly 1 and the front subframe assembly 2. The third direction refers to the height direction of the vehicle 600.

[0069] Optionally, in one embodiment of the present disclosure, in the third direction, a mounting block 13 is provided at the lower end of the mounting column 12. The mounting block 13 is formed with a first connecting portion 31. The mounting column 12 and the mounting block 13 may be integrally formed. The provision of the mounting block 13 facilitates connection of the first connecting portion 31 to the front subframe assembly 2.

[0070] Optionally, in one embodiment of the present disclosure, the cross-sectional area of ​​the mounting block 13 in the second direction is greater than the cross-sectional area of ​​the mounting pillar 12. This improves the installation stability of the front subframe assembly 2. Optionally, in one embodiment of the present disclosure, the vehicle body structure 500 further includes a pillar crossbeam 15, the ends of which are respectively connected to the two mounting pillars 12.

[0071] Among them, there are two front longitudinal beams 11 and are symmetrically arranged with an axis extending in the first direction. The two ends of the column cross beam 15 are connected to the front sections 111 of the two front longitudinal beams 11. The front subframe assembly 2 includes a subframe front cross beam 21 and two subframe front longitudinal beams 22. The two subframe front longitudinal beams 22 are symmetrically arranged with an axis extending in the first direction. The two ends of the subframe front cross beam 21 are connected to the two subframe front longitudinal beams 22. A first annular structure can be formed by the column cross beam 15, the two mounting columns 12 and the subframe front cross beam 21, thereby improving the torsional stiffness of the entire front cabin.

[0072] Optionally, in one embodiment of the present disclosure, the vehicle body structure 500 further includes a wheel cover 100 , which is connected to the front longitudinal beam 11 . In the first direction, the wheel cover 100 is disposed on the rear side of the mounting pillar 12 .

[0073] The front cabin assembly 1 further includes a pillar longitudinal beam 17 , both ends of which are connected to the mounting pillar 12 and the wheel house 100 , respectively. In the third direction, the pillar longitudinal beam 17 is spaced apart from the front longitudinal beam 11 .

[0074] Optionally, in one embodiment of the present disclosure, the vehicle body structure 500 includes a fork arm connector 14, and the wheel housing 100 is connected to the fork arm connector 14. In other words, the connection between the wheel housing 100 and the front longitudinal beam 11 overlaps with the projection of the third connecting portion 33 in the third direction.

[0075] Among them, the front cabin assembly also includes a front cabin stabilizer bar 18, the two ends of the front cabin stabilizer bar 18 are respectively connected to the two wheel housings 100, and the front cabin stabilizer bar 18, the two wheel housings 100, a part of the two front longitudinal beams 11 and a part of the front subframe assembly 2 constitute an n-type ring structure.

[0076] Optionally, in one embodiment of the present disclosure, the vehicle body structure 500 further includes a dash panel 8 and a dash panel cross beam 9 , and both ends of the dash panel cross beam 9 are connected to the two front longitudinal beams 11 .

[0077] The dash panel cross member 9 and the dash panel 8 are both connected to the front cabin assembly 1, and the dash panel 8 is connected to the dash panel lower cross member 7. The dash panel 8 and the dash panel cross member 9 are located near the second connection point. In the first direction, the second connection portion 32 is located between the dash panel cross member 9 and the dash panel lower cross member 7. By positioning the dash panel 8 and the dash panel cross member 9 near the second connection point, the load applied to the dash panel 8 and the dash panel cross member 9 when the force is transferred to the second connection point can be transferred to the dash panel 8 and the dash panel cross member 9. Simultaneously, the load can also be transferred to the dash panel lower cross member 7, thereby distributing the load and improving the integrity of the entire front cabin and passenger compartment assembly.

[0078] Optionally, in one embodiment of the present disclosure, the subframe connection portion 3 further includes a third connection portion 33. In the first direction, the third connection portion 33 is located between the first connection portion 31 and the second connection portion 32. In the second direction, there are two third connection portions 33, which are spaced apart along the second direction. The length of the line between the two third connection portions 33 is less than the length of the line between the two first connection portions 31.

[0079] Optionally, in one embodiment of the present disclosure, the length of the line between the two third connection parts 33 is greater than the length of the line between the two second connection parts 32 .

[0080] The mating portion 4 further includes a third mating portion 43. The third connecting portion 33 is connected to the third mating portion 43 to form a third connection point. The third connection point is located between the first and second connection points in both the first and second directions. The provision of this third connection point can improve the connection strength between the front compartment assembly 1 and the front subframe assembly 2.

[0081] Among them, the third connection point is located between the first connection point and the second connection point, so that when the body structure 500 is subjected to a positive load, the force can be transmitted from the first connection point to the third connection point, and then from the third connection point to the second connection point, so that the force is gradually transmitted from front to rear in the first direction and from outside to inside in the second direction.

[0082] The number of third connection points may be two or more even numbers, and they may be symmetrically arranged about an axis extending along the first direction, thereby improving the stability of the entire front cabin. Alternatively, in some examples, the third connection point is located on the front section 111 of the front longitudinal beam 11 of the front cabin assembly 1.

[0083] Optionally, in one embodiment of the present disclosure, the front cabin assembly 1 includes a fork arm mounting seat 14 , the fork arm mounting seat 14 is connected to the front longitudinal beam 11 , and a third connecting portion 33 is provided on the fork arm mounting seat 14 .

[0084] The fork arm mounting seat 14 is connected to the front longitudinal beam 11 , and may be connected to the front section 111 of the front longitudinal beam 11 , and may be located in the middle of the front section 111 in the first direction. The fork arm mounting seat 14 is L-shaped as a whole.

[0085] Optionally, in one embodiment of the present disclosure, the fork arm mounting base 14 includes an interconnected side panel 141 and a bottom panel 142. Both the bottom panel 142 and the side panel 141 are connected to the front longitudinal beam 11. The bottom panel 142 is located at the bottom of the front longitudinal beam 11, and the side panel 141 is located on one side of the front longitudinal beam 11 in the second direction. The bottom panel 142 is formed with a third connecting portion 33, and the side panel 141 is formed with a fork arm connecting portion 143. The side panel 141 is also formed with reinforcing ribs extending in the second direction and / or the third direction. The provision of the reinforcing ribs can increase the structural strength of the fork arm mounting base 14. The interconnected side panels 141 and bottom panel 142 can form an L-shaped structure.

[0086] Optionally, in one embodiment of the present disclosure, the projections of the first and third connection points, as well as the front section 111 of the front longitudinal beam 11, in the third direction overlap. The overlap is in the second direction, with an overlap of 10 mm to 20 mm. In other words, the first and third connection points are both located on the front section 111 of the front longitudinal beam 11, not on the sides of the front section 111. The third direction refers to the vertical direction of the vehicle 600.

[0087] Optionally, in one embodiment of the present disclosure, the third connection point may also overlap with the projection of the rear section 112 of the front longitudinal beam 11 in the third direction.

[0088] Optionally, in one embodiment of the present disclosure, the mating portion 4 is configured as a bushing formed on the front subframe assembly 2, the connecting portion 3 is provided with a reinforcement, and the connecting portion 3 is configured as a threaded sleeve formed on the front compartment assembly 1. The mating portion 4 and the connecting portion 3 are connected by bolts. By passing the bolts through the bushing and connecting the threaded sleeve, the front compartment assembly 1 and the front subframe assembly 2 can be mounted and fixed. Optionally, in some examples, the threaded sleeve is configured as a wire threaded sleeve.

[0089] Optionally, in one embodiment of the present disclosure, the reinforcement member may be a structure such as the reinforcement rib formed on the wishbone connecting seat and the reinforcement rib formed on the front longitudinal beam in the above embodiment.

[0090] Among them, the reinforcement of the first connecting part 31 is provided with a six-grid reinforcement structure. In some examples, the mounting block 13 of the above embodiment is provided with a six-grid reinforcement rib, the wire screw sleeve is arranged in the mounting block 13, and the six-grid reinforcement rib is connected to the wire screw sleeve.

[0091] The reinforcement of the third connection portion 33 is provided with reinforcing ribs. In the above embodiment, the side plate of the fork arm mounting seat 14 is provided with vertical ribs extending along the third direction. The vertical ribs are reinforcing ribs and are connected to the third connection portion 33 .

[0092] The reinforcement of the second connecting portion 32 is provided as a reinforcement rib 19 , and the front end surface of the rear section 112 of the front longitudinal beam 11 in the first direction is provided with a reinforcement rib 19 extending along the first direction and the second direction.

[0093] As shown in FIG11 , the second aspect of the present disclosure further provides a vehicle 600 , comprising the above-mentioned vehicle body structure 500 . The vehicle 600 further comprises a front subframe assembly 2 , which is connected to the subframe connection portion 3 of the front compartment assembly 1 of the vehicle body structure 500 .

[0094] Optionally, in one embodiment of the present disclosure, the ends of the pillar crossbeam 15 are respectively connected to the two mounting pillars 12. The front subframe assembly 2 includes a subframe front crossbeam 21, the ends of which are connected to the mounting pillars 12. The pillar crossbeam 15, the subframe front crossbeam 21, and the two mounting pillars 12 form a first annular structure. The subframe front crossbeam 21 and the pillar crossbeam 15 are spaced apart in the third direction.

[0095] Optionally, in one embodiment of the present disclosure, the two wheel housings 100 are respectively connected to the wishbone connecting seats 14 connected to the two front longitudinal beams 11, and the two ends of the front cabin stabilizer bar 18 are respectively connected to the two wheel housings 100, and the front cabin stabilizer bar 18, the two wheel housings 100, a portion of the two front longitudinal beams 11 and a portion of the front subframe assembly 2 constitute an n-type ring structure.

[0096] Optionally, in one embodiment of the present disclosure, both ends of the dash panel cross beam 9 and both ends of the subframe rear cross beam 23 are respectively connected to the two front longitudinal beams 11, and the dash panel cross beam 9, the subframe rear cross beam 23 and a portion of the two front longitudinal beams 11 constitute a second annular structure.

[0097] The embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the scope of protection of the present disclosure.

[0098] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0099] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A vehicle body structure (500), characterized in that: include: A subframe connecting portion (3) adapted to be connected to the front subframe assembly (2); The sub-frame connecting portion (3) comprises a first connecting portion (31) and a second connecting portion (32), and in a first direction, the second connecting portion (32) is located at the rear side of the first connecting portion (31); In the second direction, the two first connecting portions (31) are spaced apart, the two second connecting portions (32) are spaced apart, and the length of the line connecting the two first connecting portions (31) is greater than the length of the line connecting the two second connecting portions (32); The first direction is set as the front-rear direction of the vehicle (600), and the second direction is set as the left-right direction of the vehicle (600).

2. The vehicle body structure (500) according to claim 1, characterized in that: The sub-frame connecting portion (3) further comprises a third connecting portion (33). In a first direction, the third connecting portion (33) is located between the first connecting portion (31) and the second connecting portion (32). In a second direction, there are two third connecting portions (33) arranged at intervals along the second direction. The length of a line connecting the two third connecting portions (33) is less than the length of a line connecting the two first connecting portions (31).

3. The vehicle body structure (500) according to claim 2, characterized in that: The length of the line connecting the two third connecting portions (33) is greater than the length of the line connecting the two second connecting portions (32).

4. The vehicle body structure (500) according to any one of claims 1 to 3, characterized in that: The vehicle body structure (500) further includes a dash panel lower cross beam (7); the vehicle body structure (500) includes two front longitudinal beams (11), the two front longitudinal beams (11) are spaced apart in the second direction, and both ends of the dash panel lower cross beam (7) are respectively connected to the two front longitudinal beams (11); In the first direction, the second connecting portion (32) is arranged on the front side of the front panel lower cross beam (7).

5. The vehicle body structure (500) according to claim 4, characterized in that: The vehicle body structure (500) further includes a central channel (5), wherein the central channel (5) is connected to a side of the front panel lower cross beam (7) facing away from the second connecting portion (32).

6. The vehicle body structure (500) according to claim 4 or 5, characterized in that: The front longitudinal beam (11) comprises a front section (111) and a rear section (112) connected in sequence in the first direction, the first connecting portion (31) is located in the front section (111), the second connecting portion (32) is located in the rear section (112), the rear section (112) is an integrally formed structure, and the rear section (112) is connected to the front panel lower cross beam (7).

7. The vehicle body structure (500) according to claim 6, characterized in that: The front section (111) is provided with a mounting column (12) extending along a third direction, and the first connecting portion (31) is formed on the mounting column (12).

8. The vehicle body structure (500) according to claim 7, characterized in that: In the third direction, a mounting block (13) is provided at the lower end of the mounting column (12), and the mounting block (13) is formed with the first connecting portion (31).

9. The vehicle body structure (500) according to claim 8, characterized in that: In the second direction, the cross-sectional area of ​​the installation block (13) is larger than the cross-sectional area of ​​the installation column (12).

10. The vehicle body structure (500) according to any one of claims 7 to 9, characterized in that: The vehicle body structure (500) further comprises a column cross beam (15), and both ends of the column cross beam (15) are respectively connected to the two mounting columns (12).

11. The vehicle body structure (500) according to any one of claims 7 to 10, characterized in that: The vehicle body structure (500) further includes a wheel cover (100), the wheel cover (100) being connected to the front longitudinal beam (11), and the wheel cover (100) being arranged on the rear side of the mounting column (12) in a first direction; The vehicle body structure (500) further includes a column longitudinal beam (17), and both ends of the column longitudinal beam (17) are respectively connected to the mounting column (12) and the wheel cover (100); Wherein, in the third direction, the column longitudinal beam (17) and the front longitudinal beam (11) are spaced apart.

12. The vehicle body structure (500) according to claim 11, characterized in that: The vehicle body structure (500) includes a fork arm mounting seat (14), and the wheel cover (100) is connected to the fork arm mounting seat (14).

13. The vehicle body structure (500) according to any one of claims 4 to 12, characterized in that: The vehicle body structure (500) further includes a dash panel cross beam (9), both ends of which are connected to the two front longitudinal beams (11), and in a first direction, the second connecting portion (32) is located between the dash panel cross beam (9) and the dash panel lower cross beam (7).

14. The vehicle body structure (500) according to any one of claims 4 to 13, characterized in that: The front longitudinal beam (11) is formed with a reinforcing rib (19), and the reinforcing rib (19) is connected to the second connecting portion (32); Wherein, the reinforcing rib (19) extends along the first direction, or the reinforcing rib (19) extends along the second direction, or the reinforcing rib (19) extends along the first direction and the second direction.

15. The vehicle body structure (500) according to any one of claims 2 to 14, characterized in that: The vehicle body structure (500) includes a fork arm mounting seat (14), the fork arm mounting seat (14) is connected to the front longitudinal beam (11), and the third connecting portion (33) is provided on the fork arm mounting seat (14).

16. The vehicle body structure (500) according to claim 15, characterized in that: The fork arm mounting seat (14) includes a side plate (141) and a bottom plate (142) connected to each other, the bottom plate (142) and the side plate (141) are both connected to the front longitudinal beam (11), the bottom plate (142) is located at the bottom of the front longitudinal beam (11), and the side plate (141) is located on one side of the front longitudinal beam (11) in the second direction, the bottom plate (142) is formed with the third connecting portion (33), and the side plate (141) is formed with a fork arm connecting portion (143).

17. A vehicle (600), characterized in that The vehicle (600) comprises a vehicle body structure (500) as claimed in any one of claims 1 to 16, and further comprises a front sub-frame assembly (2), wherein the front sub-frame assembly (2) is connected to the sub-frame connection portion (3).

18. The vehicle (600) according to claim 17, characterized in that The vehicle body structure (500) includes two mounting columns (12) and a column crossbeam (15), the two ends of the column crossbeam (15) are respectively connected to the two mounting columns (12), the front subframe assembly (2) includes a subframe front crossbeam (21), the two ends of the subframe front crossbeam (21) are connected to the mounting columns (12), and the column crossbeam (15), the subframe front crossbeam (21) and the two mounting columns (12) form a first annular structure.

19. The vehicle (600) according to claim 17 or 18, characterized in that The vehicle body structure (500) further includes a front cabin stabilizer bar (18), two front longitudinal beams (11) spaced apart in a second direction, and two wheel covers (100) spaced apart in the second direction. The two ends of the front cabin stabilizer bar (18) are respectively connected to the two wheel covers (100). The front cabin stabilizer bar (18), the two wheel covers (100), a portion of the two front longitudinal beams (11), and a portion of the front subframe assembly (2) form an n-type ring structure.

20. The vehicle (600) according to any one of claims 17 to 19, characterized in that The vehicle body structure (500) includes two front longitudinal beams (11) and a front panel cross beam (9); the front subframe assembly (2) includes a subframe rear cross beam (23); both ends of the front panel cross beam (9) and both ends of the subframe rear cross beam (23) are respectively connected to the two front longitudinal beams (11); the front panel cross beam (9), the subframe rear cross beam (23) and a portion of the two front longitudinal beams (11) form a second annular structure.

Citation Information

Patent Citations

  • Non-bearing type lower vehicle body structure

    CN115402417A

  • Vehicle

    CN117508355A

  • Front cabin structure with improved NVH (Noise Vibration and Harshness) performance and vehicle

    CN117508363A

  • Chassis structure of vehicle and vehicle

    CN218949295U

  • Front part vehicle body structure for vehicle

    JP2010179897A