Vehicle body structure and vehicle

By introducing a first force transmission component and concave ribs into the vehicle body structure, the problem of easy deformation of the front bulkhead during a collision is solved, achieving higher safety and collision force dispersion effect, and protecting the passenger compartment space.

CN223764548UActive Publication Date: 2026-01-06BYD CO LTD
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Patent Information

Application Number
CN202520471873.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-14
Publication Date
2026-01-06
Estimated Expiration
2035-03-14

AI Technical Summary

Technical Problem

In the event of a frontal collision, the front bulkhead of existing vehicles is prone to deformation, which reduces the passenger compartment space and affects safety.

Method used

Design a vehicle body structure including a front bulkhead, a central tunnel, and a sill beam. The collision force is transferred between the central tunnel and the sill beam through a first force transmission component, increasing the force transmission path. The structural strength of the front bulkhead is strengthened by concave ribs and connectors.

Benefits of technology

It effectively prevents deformation of the front bulkhead, increases vehicle safety, improves the dispersion of collision force, and protects the passenger compartment space.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223764548U_ABST
    Figure CN223764548U_ABST
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Abstract

The vehicle body structure comprises a dash panel, a central channel and a doorsill beam, the dash panel comprises a dash panel body and a first force transmission piece connected with the dash panel body, the first force transmission piece is located behind the dash panel body, one end of the first force transmission piece is connected with the central channel, and the other end of the first force transmission piece is connected with the doorsill beam. The other end of the first force transmission piece is connected with the doorsill beam. The first force transmission part of the vehicle body structure can play a role in reinforcing the dash panel body, so that the dash panel body is less prone to deformation when the vehicle is collided, and due to the fact that one end of the first force transmission part is connected with the central channel and the other end of the first force transmission part is connected with the doorsill beam, the first force transmission part is not prone to deformation when the vehicle is collided. Collision force borne by the vehicle can be transmitted between the central channel and the threshold beam through the first force transmission piece, and the force transmission path of the front portion of the vehicle body structure is increased.
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Description

Technical Field

[0001] This disclosure relates to the field of vehicle technology, and more specifically, to a vehicle body structure and a vehicle. Background Technology

[0002] As vehicles continue to evolve, the market demands increasingly higher levels of vehicle safety. Among these demands is the vehicle's ability to protect occupants during a frontal collision, a crucial indicator of vehicle safety and a significant area of ​​research in the automotive field. Utility Model Content

[0003] The purpose of this disclosure is to provide a vehicle body structure and vehicle that at least partially solves the technical problems existing in the related art.

[0004] To achieve the above objectives, according to a first aspect of this disclosure, a vehicle body structure is provided, comprising a front bulkhead, a central passage, and a sill beam. The front bulkhead includes a front bulkhead body and a first force transmission member connected to the front bulkhead body. The first force transmission member is located behind the front bulkhead body, one end of the first force transmission member is connected to the central passage, and the other end of the first force transmission member is connected to the sill beam.

[0005] Optionally, the vehicle body structure further includes a front longitudinal beam located in front of and connected to the front bulkhead body, wherein the projection of the first force transmission member in the front-rear direction at least partially coincides with the connection area between the front longitudinal beam and the front bulkhead body.

[0006] Optionally, the first force transmission member is provided with at least one downwardly recessed rib, and the projection of the at least one rib in the front-rear direction at least partially coincides with the connection area between the front longitudinal beam and the front bulkhead body.

[0007] Optionally, at least one end of the concave rib is connected to the central channel, and the other end of the at least one concave rib extends in a direction away from the central channel.

[0008] Optionally, the first force transmission member and the front bulkhead body together define a first cavity.

[0009] Optionally, the vehicle body structure further includes a floor panel and a connector. The upper surface of the floor panel is provided with a longitudinal force transmission member. One end of the connector is connected to the longitudinal force transmission member, and the other end of the connector is connected to the side of the first force transmission member away from the front bulkhead body.

[0010] Optionally, the first force transmission member has a first connecting segment connected to the connecting member, and the uppermost end of the connecting member is higher than the center line of the first connecting segment extending in the left-right direction.

[0011] Optionally, the vehicle body structure further includes an A-pillar, and the front bulkhead further includes a second force transmission member. The second force transmission member is located behind the front bulkhead body and above the first force transmission member. The second force transmission member extends in the left-right direction, and the end of the second force transmission member is connected to the A-pillar.

[0012] Optionally, the middle part of the second force transmission member protrudes upward to form an upper protrusion, which is located above the central channel and connected to the central channel.

[0013] Optionally, the second force transmission member and the front bulkhead body together define a second cavity.

[0014] Optionally, the vehicle body structure further includes a floor panel and a connector. The upper surface of the floor panel is provided with a longitudinal force transmission member. One end of the connector is connected to the longitudinal force transmission member, and the other end of the connector is connected to both the side of the first force transmission member away from the front bulkhead body and the side of the second force transmission member away from the front bulkhead body.

[0015] Optionally, the second force transmission member has a second connecting segment connected to the connecting member, and the uppermost end of the connecting member is higher than the center line of the second connecting segment extending in the left-right direction.

[0016] Optionally, the vehicle body structure further includes a front longitudinal beam located in front of and connected to the front bulkhead body, wherein the projection of the connector in the front-rear direction at least partially coincides with the connection area between the front longitudinal beam and the front bulkhead body.

[0017] Optionally, the vehicle body structure further includes a front longitudinal beam located in front of and connected to the front bulkhead body. The rear end of the front longitudinal beam extends toward the floor panel and forms a floor connection portion. The floor connection portion is connected to the lower surface of the floor panel. The projection of the connector in the vertical direction at least partially coincides with the projection of the floor connection portion in the vertical direction.

[0018] Optionally, the first force transmission member is provided with at least one downwardly recessed rib, and the rib is provided with a mounting part, and the connector is connected to the mounting part by a fastener.

[0019] According to a second aspect of this disclosure, a vehicle is provided, including the aforementioned body structure.

[0020] With the above technical solution, since the first force transmission component is connected to the front bulkhead body, the first force transmission component can strengthen the front bulkhead body, thereby making the front bulkhead body less prone to deformation when the vehicle is hit by a collision, which helps to avoid deformation and compression of the front bulkhead body and the space of the passenger compartment.

[0021] Furthermore, since one end of the first force transmission component is connected to the central tunnel and the other end is connected to the sill beam, when the vehicle is involved in a collision, the collision force can be transmitted between the central tunnel and the sill beam through the first force transmission component, increasing the force transmission path at the front of the vehicle body structure and improving vehicle safety.

[0022] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0024] Figure 1 This is a partial three-dimensional structural view of the vehicle body structure after a transverse section according to one embodiment of the present disclosure.

[0025] Figure 2 This is a partial three-dimensional structural diagram of a vehicle body structure after longitudinal sectioning according to one embodiment of the present disclosure.

[0026] Figure 3 This is a partial three-dimensional structural diagram of the vehicle body structure after a transverse section, provided in another embodiment of this disclosure.

[0027] Figure 4 This is a partial three-dimensional structural view of the vehicle body structure after longitudinal sectioning, provided in another embodiment of this disclosure.

[0028] Figure 5 This is a partial top view of a vehicle body structure provided in one embodiment of the present disclosure.

[0029] Explanation of reference numerals in the attached figures

[0030] 101-Floor panel; 102-Longitudinal force transmission component; 10-Front panel; 11-First force transmission component; 111-Rib; 112-Mounting part; 12-Second force transmission component; 121-Upper protrusion; 13-Front panel body; 20-A-pillar; 53-First cavity; 54-Second cavity; 62-Connector; 70-Front longitudinal beam; 75-Floor connection part; 80-Central passage; 90-Sill beam. Detailed Implementation

[0031] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0032] In this disclosure, unless otherwise stated, directional terms such as "up," "down," "top," "bottom," "front," "rear," "left," and "right" are generally defined according to the vehicle's position in normal driving conditions. For example, the direction towards the vehicle's roof is "up" or "top," the direction towards the vehicle's chassis is "down" or "bottom," the direction towards the front of the vehicle is "front," the direction towards the rear of the vehicle is "rear," the direction towards the left wheel of the vehicle is "left," and the direction towards the right wheel of the vehicle is "right" (see reference for details). Figures 1-5 As shown, the X direction is the front-to-back direction, the Y direction is the left-to-right direction, and the Z direction is the up-to-down direction. The directional terms used are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientation construction and operation, and therefore should not be construed as a limitation of this disclosure. "Inner" and "outer" refer to the inner and outer contours of the corresponding components. In addition, the terms "first," "second," etc., used are to distinguish one element from another and do not have sequential or importance.

[0033] In the description of this disclosure, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "connect," "link," and "install" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0034] like Figures 1 to 5 As shown, according to a first aspect of this disclosure, a vehicle body structure is provided, including a front bulkhead 10, a central passage 80, and a sill beam 90. The front bulkhead 10 includes a front bulkhead body 13 and a first force transmission member 11 connected to the front bulkhead body 13. The first force transmission member 11 is located behind the front bulkhead body 13. One end of the first force transmission member 11 is connected to the central passage 80, and the other end of the first force transmission member 11 is connected to the sill beam 90.

[0035] With the above technical solution, since the first force transmission component 11 is connected to the front bulkhead body 13, the first force transmission component 11 can strengthen the front bulkhead body 13, thereby making the front bulkhead body 13 less prone to deformation when the vehicle is hit by a collision, which helps to avoid deformation and compression of the front bulkhead body 13 and the space of the passenger compartment.

[0036] Furthermore, since one end of the first force transmission member 11 is connected to the central tunnel 80 and the other end of the first force transmission member 11 is connected to the sill beam 90, when the vehicle is involved in a collision, the collision force can be transmitted between the central tunnel 80 and the sill beam 90 via the first force transmission member 11, increasing the force transmission path at the front of the vehicle body structure and improving vehicle safety.

[0037] This disclosure does not limit the connection method between the first force transmission member 11 and the sill beam 90 and the central passage 80. As one embodiment, the first force transmission member 11 can be connected to the sill beam 90 and the central passage 80 by welding. As another embodiment, the first force transmission member 11 can be connected to the side wall of the sill beam 90, or the first force transmission member 11 can be connected to both the side wall and the top wall of the sill beam 90. Furthermore, the front bulkhead body 13 can be constructed separately from the first force transmission member 11, or it can be constructed integrally; this disclosure does not limit this.

[0038] Optionally, such as Figure 2 and Figure 4 As shown, the vehicle body structure also includes a front longitudinal beam 70, which is located in front of and connected to the front bulkhead body 13. The projection of the first force transmission member 11 in the front-rear direction at least partially coincides with the connection area between the front longitudinal beam 70 and the front bulkhead body 13. Here, the connection area between the front longitudinal beam 70 and the front bulkhead body 13 refers to the area enclosed by the contact or connection points between the front longitudinal beam 70 and the front bulkhead body 13.

[0039] Since the projection of the first force transmission member 11 in the front-rear direction at least partially overlaps with the connection area between the front longitudinal beam 70 and the front bulkhead body 13, when the vehicle is involved in a collision, the first force transmission member 11 can support the position of the front bulkhead body 13 that is pressed by the front longitudinal beam 70, thereby helping to prevent the front bulkhead body 13 from being deformed by the front longitudinal beam 70. Furthermore, the first force transmission member 11 can also transmit the impact force received by the front longitudinal beam 70 to the central tunnel 80 and / or the sill beam 90, improving the dispersion effect of the frontal impact force.

[0040] Optionally, the front longitudinal beam 70 may include a main body section and a downwardly curved section connected to the main body section, and the projection of the first force transmission member 11 in the front-rear direction may at least partially coincide with the downwardly curved section of the front longitudinal beam 70.

[0041] This disclosure does not limit the construction of the first force transmission component 11. As one embodiment, such as Figure 1 , Figure 3 as well as Figure 5 As shown, the first force transmission member 11 is provided with at least one downwardly recessed rib 111, and the projection of the at least one rib 111 in the front-rear direction at least partially coincides with the connection area between the front longitudinal beam 70 and the front bulkhead body 13.

[0042] On the one hand, the concave rib 111 can enhance the rigidity and strength of the first force transmission member 11, improve the force transmission effect of the first force transmission member 11, and make the first force transmission member 11 less prone to deformation when subjected to collision force. On the other hand, since the projection of at least one concave rib 111 in the front-rear direction at least partially coincides with the connection area between the front longitudinal beam 70 and the front bulkhead body 13, the concave rib 111 can effectively strengthen the position of the first force transmission member 11 bearing the force of the front longitudinal beam 70, thereby enabling the first force transmission member 11 to better support the position of the front bulkhead body 13 being pressed by the front longitudinal beam 70 and reducing the risk of deformation of the front bulkhead body 13.

[0043] Furthermore, in the embodiment where the first force transmission member 11 and the front bulkhead body 13 jointly define the first cavity 53, the downwardly recessed rib 111 can also divide the first cavity 53 into at least two force transmission cavities, thereby improving the force transmission capability of the first force transmission member 11.

[0044] As another implementation, the first force transmission member 11 may also be provided with an upwardly protruding rib.

[0045] This disclosure does not limit the structure of the concave rib 111. In one embodiment, at least one end of the concave rib 111 is connected to the central channel 80, and the other end of the at least one concave rib 111 extends in a direction away from the central channel 80.

[0046] Since the concave rib 111 has the function of guiding the force transmission path, at least one end of the concave rib 111 is connected to the central channel 80, and the other end of the concave rib 111 extends in a direction away from the central channel 80, which is beneficial to improving the ability of the first force transmission member 11 to transmit force to the central channel 80.

[0047] Optionally, such as Figure 2 and Figure 4 As shown, the first force transmission member 11 and the front bulkhead body 13 together define the first cavity 53. The first cavity 53 not only enables the first force transmission member 11 to have good strength while having a light weight, but also helps to improve the force transmission performance of the first force transmission member 11.

[0048] Optionally, such as Figure 1 As shown, the vehicle body structure also includes a floor panel 101 and a connector 62. The upper surface of the floor panel 101 is provided with a longitudinal force transmission member 102. One end of the connector 62 is connected to the longitudinal force transmission member 102, and the other end of the connector 62 is connected to the side of the first force transmission member 11 away from the front bulkhead body 13.

[0049] Since one end of the connector 62 is connected to the longitudinal force transmission member 102 and the other end of the connector 62 is connected to the side of the first force transmission member 11 away from the front bulkhead body 13, when the vehicle is involved in a collision, the connector 62 can transmit the collision force borne by the first force transmission member 11 to the longitudinal force transmission member 102, and continue to transmit it backward through the longitudinal force transmission member 102 (for example, to the seat crossbeam), which helps to increase the force transmission path when the vehicle is involved in a frontal collision and helps to disperse the collision force.

[0050] Optionally, the rear end of the longitudinal force transmission member 102 can be connected to a crossbeam (e.g., a seat crossbeam) in the middle of the vehicle body. This disclosure does not limit the type of the longitudinal force transmission member 102; as one embodiment, the longitudinal force transmission member 102 can be a ski board.

[0051] This disclosure does not limit the height at which the connector 62 covers the first force transmission member 11. In one embodiment, the first force transmission member 11 has a first connecting segment connected to the connector 62. The uppermost end of the connector 62 is higher than the centerline of the first connecting segment extending in the left-right direction; that is, the area of ​​the connector 62 covering the first connecting segment is partially higher than the centerline of the first connecting segment extending in the left-right direction. This improves the support effect of the connector 62 on the first force transmission member 11, preventing the first force transmission member 11 from deforming and intruding into the passenger compartment. Furthermore, it increases the force transmission area between the first force transmission member 11 and the connector 62, thereby enhancing the ability of the first force transmission member 11 to transmit force rearward through the connector 62.

[0052] Alternatively, connector 62 may also completely cover the first connecting segment in the height direction.

[0053] Optionally, such as Figures 1 to 4 As shown, the vehicle body structure also includes an A-pillar 20, and the front bulkhead 10 includes a second force transmission member 12. The second force transmission member 12 is located behind the front bulkhead body 13 and above the first force transmission member 11. The second force transmission member 12 extends in the left-right direction, and its end is connected to the A-pillar 20. In other words, the left and right ends of the second force transmission member 12 can be connected to the left and right A-pillars 20 respectively, or they can be connected to only one of the left and right A-pillars 20.

[0054] The second force transmission component 12 can strengthen the front bulkhead body 13, making the front bulkhead body 13 less prone to deformation during a vehicle collision. In addition, the second force transmission component 12 can transmit the collision force to the A-pillar 20, improving the dispersion effect of the collision force.

[0055] The second force transmission component 12 can be constructed separately from the front bulkhead body 13 or integrally with the front bulkhead body 13; this disclosure does not limit this.

[0056] Optional, such as Figure 1 and Figure 3 As shown, the middle part of the second force transmission member 12 protrudes upward to form an upper protrusion 121, which is located above the central channel 80 and connected to the central channel 80.

[0057] The second force transmission member 12 can cross the central channel 80 from above through the second upper protrusion 121, thereby allowing the second force transmission member 12 to be constructed as an integral part extending in the left and right directions without intruding into the space of the central channel 80, so that the second force transmission member 12 has good strength and force transmission performance.

[0058] Furthermore, by connecting the second upper protrusion 121 to the central channel 80, the second force transmission member 12 can transmit the impact force it bears to the rear through the central channel 80, which helps to disperse the impact force borne by the second force transmission member 12 and thus improves the support capacity of the second force transmission member 12 for the front bulkhead body 13.

[0059] Optionally, such as Figure 2 and Figure 4 As shown, the second force transmission component 12 and the front bulkhead body 13 together define the second cavity 54.

[0060] The second cavity 54 not only enables the second force transmission component 12 to have good strength while having a light weight, but also helps to improve the force transmission performance of the second force transmission component 12, so that the forward impact force can be better transmitted to the A-pillar 20 through the second force transmission component 12.

[0061] Optionally, such as Figures 1 to 4 As shown, the vehicle body structure also includes a floor panel 101 and a connector 62. The upper surface of the floor panel 101 is provided with a longitudinal force transmission member 102. One end of the connector 62 is connected to the longitudinal force transmission member 102, and the other end of the connector 62 is connected to the side of the first force transmission member 11 away from the front bulkhead body 13 and the side of the second force transmission member 12 away from the front bulkhead body 13.

[0062] Since one end of the connector 62 is connected to the longitudinal force transmission member 102, and the other end of the connector 62 is connected to the side of the first force transmission member 11 and the second force transmission member 12 away from the front bulkhead body 13, when the vehicle is involved in a collision, the connector 62 can transmit the collision force borne by the first force transmission member 11 and the second force transmission member 12 to the longitudinal force transmission member 102, and continue to transmit it backward through the longitudinal force transmission member 102 (for example, to the seat crossbeam), which helps to increase the force transmission path when the vehicle is involved in a frontal collision and helps to disperse the collision force.

[0063] This disclosure does not limit the height at which the connector 62 covers the second force transmission member 12. In one embodiment, the second force transmission member 12 has a second connecting section connected to the connector 62. The uppermost end of the connector 62 is higher than the centerline of the second connecting section extending in the left-right direction; that is, the area of ​​the connector 62 covering the second connecting section is partially higher than the centerline of the second connecting section extending in the left-right direction. This improves the support effect of the connector 62 on the first force transmission member 11 and the second force transmission member 12, preventing deformation and intrusion of the first and second force transmission members 11 and 12 into the passenger compartment. Furthermore, it increases the force transmission area between the second force transmission member 12 and the connector 62, thereby enhancing the ability of the second force transmission member 12 to transmit force rearward through the connector 62.

[0064] Alternatively, connector 62 may also completely cover the second connecting segment in the height direction.

[0065] Optionally, such as Figures 1 to 4 As shown, the vehicle body structure also includes a front longitudinal beam 70, which is located in front of and connected to the front bulkhead body 13. The projection of the connector 62 in the front-rear direction at least partially coincides with the connection area between the front longitudinal beam 70 and the front bulkhead body 13.

[0066] Since the projection of the connector 62 in the front-rear direction at least partially coincides with the connection area between the front longitudinal beam 70 and the front bulkhead body 13, the connector 62 can transfer the impact force on the front longitudinal beam 70 to the longitudinal force transmission member 102, and continue to transfer it rearward through the longitudinal force transmission member 102 (e.g., to the seat crossbeam), thereby increasing the force transmission path during a frontal collision and facilitating the dispersion of the impact force.

[0067] Optionally, such as Figure 2 and Figure 4 As shown, the rear end of the front longitudinal beam 70 extends toward the floor panel 101 and forms a floor connection portion 75. The floor connection portion 75 is connected to the lower surface of the floor panel 101. The projection of the connector 62 in the vertical direction at least partially coincides with the projection of the floor connection portion 75 in the vertical direction.

[0068] Since the projection of the connector 62 in the vertical direction at least partially overlaps with the projection of the floor connection 75 in the vertical direction, on the one hand, the floor connection 75 can transmit the impact force to the connector 62, and on the other hand, the rear end of the connector 62 can apply a downward force to the floor panel 101, preventing the floor panel 101 from bulging upward and intruding into the passenger compartment due to the deformation of the floor connection 75.

[0069] This disclosure does not limit the connection method between the connector 62 and the first force transmission member 11. As one embodiment, such as Figure 5As shown, the first force transmission component 11 is provided with a mounting part 112, and the connecting part 62 is connected to the mounting part 112 by fasteners.

[0070] By providing a mounting portion 112 on the first force transmission member 11, the connector 62 can be accurately positioned on the first force transmission member 11 during installation, thereby ensuring the ability of the first force transmission member 11 to transmit force backward through the connector 62. Furthermore, the connector 62 is connected to the mounting portion 112 by fasteners, which helps to improve the installation efficiency between the two.

[0071] As another implementation, the connector 62 can also be welded to the first force transmission member 11.

[0072] This disclosure does not limit the connection method between the connector 62 and the second force transmission member 12. For example, the second force transmission member 12 can be connected to the connector 62 by fasteners or by welding. In the embodiment where the second force transmission member 12 is connected to the connector 62 by fasteners, the second force transmission member 12 can also be provided with a mounting part.

[0073] As one embodiment of this disclosure, the connector 62 can be connected to both the first force transmission member 11 and the second force transmission member 12. This arrangement not only allows the connector 62 to support and strengthen the first force transmission member 11 and the second force transmission member 12, preventing the first force transmission member 11 and the second force transmission member 12 from deforming and compressing the space of the passenger compartment in the direction closer to the passenger compartment, but also establishes a force transmission path between the first force transmission member 11 and the second force transmission member 12, which helps to disperse the collision force.

[0074] In this disclosure, the mounting part 112 can be disposed at any suitable position on the first force transmission member 11. As one embodiment, such as... Figure 5 As shown, the first force transmission member 11 is provided with at least one downwardly recessed rib 111, and the mounting part 112 is provided on the rib 111.

[0075] Since the concave rib 111 has good rigidity and strength, the mounting part 112 can be set on the concave rib 111 to improve the rigidity and strength of the mounting part 112, thereby improving the connection reliability between the mounting part 112 and the connector 62.

[0076] According to a second aspect of this disclosure, a vehicle is provided, including the aforementioned body structure.

[0077] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0078] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0079] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A vehicle body structure characterized by comprising: The front wallboard comprises a front wallboard body and a first force transmission element connected with the front wallboard body, the first force transmission element is located behind the front wallboard body, one end of the first force transmission element is connected with the central channel, and the other end of the first force transmission element is connected with the rocker beam.

2. The vehicle body structure according to claim 1, characterized by The vehicle body structure further comprises a front longitudinal beam located in front of the front wallboard body and connected with the front wallboard body, and a projection of the first force transmission element in the front-rear direction at least partially coincides with a connection region of the front longitudinal beam and the front wallboard body.

3. The vehicle body structure according to claim 2, characterized by At least one recessed rib is arranged on the first force transmission element, and a projection of the at least one recessed rib in the front-rear direction at least partially coincides with the connection region of the front longitudinal beam and the front wallboard body.

4. The vehicle body structure according to claim 3, characterized by One end of the at least one recessed rib is connected with the central channel, and the other end of the at least one recessed rib extends in a direction away from the central channel.

5. The vehicle body structure according to any one of claims 1 to 4, characterized by, The first force transmission element and the front wallboard body jointly define a first cavity.

6. The vehicle body structure according to claim 1, characterized by The vehicle body structure further comprises a floor panel and a connecting element, an upper surface of the floor panel is provided with a longitudinal force transmission element, one end of the connecting element is connected with the longitudinal force transmission element, and the other end of the connecting element is connected with a side of the first force transmission element away from the front wallboard body.

7. The vehicle body structure according to claim 6, characterized by The first force transmission element has a first connecting section connected with the connecting element, and the uppermost end of the connecting element is higher than a center line of the first connecting section extending in the left-right direction.

8. The vehicle body structure according to claim 1, characterized by The vehicle body structure further comprises an A-pillar, the front wallboard further comprises a second force transmission element located behind the front wallboard body and above the first force transmission element, the second force transmission element extends in the left-right direction, and an end portion of the second force transmission element is connected with the A-pillar.

9. The vehicle body structure according to claim 8, characterized by A middle portion of the second force transmission element protrudes upward and forms an upper protruding portion, the upper protruding portion is located above the central channel and connected with the central channel.

10. The vehicle body structure according to claim 8 or 9, characterized by The second force transmission element and the front wallboard body jointly define a second cavity.

11. The vehicle body structure according to claim 8, characterized by The vehicle body structure further comprises a floor panel and a connecting element, an upper surface of the floor panel is provided with a longitudinal force transmission element, one end of the connecting element is connected with the longitudinal force transmission element, and the other end of the connecting element is connected with a side of the first force transmission element away from the front wallboard body and a side of the second force transmission element away from the front wallboard body.

12. The vehicle body structure according to claim 11, characterized by The second force transmission element has a second connecting section connected with the connecting element, and the uppermost end of the connecting element is higher than a center line of the second connecting section extending in the left-right direction.

13. The vehicle body structure according to claim 6 or 11, characterized by The vehicle body structure further comprises a front longitudinal beam located in front of the front wallboard body and connected with the front wallboard body, and a projection of the connecting element in the front-rear direction at least partially coincides with a connection region of the front longitudinal beam and the front wallboard body.

14. The vehicle body structure according to claim 6 or 11, characterized by The vehicle body structure further comprises a front longitudinal beam located in front of the front panel body and connected with the front panel body, a rear end of the front longitudinal beam extends towards the floor panel and forms a floor connecting portion, the floor connecting portion is connected with a lower surface of the floor panel, a projection of the connecting member in the up-down direction at least partially coincides with a projection of the floor connecting portion in the up-down direction.

15. The vehicle body structure according to claim 6 or 11, characterized by At least one downwardly recessed recessed rib is arranged on the first force transmission member, a mounting portion is arranged on the recessed rib, and the connecting member is connected with the mounting portion through a fastener.

16. A vehicle characterized by comprising: A vehicle body structure comprising any one of claims 1-15.