Vehicle body structure and vehicle

Abstract

The invention relates to a vehicle body structure and a vehicle. The vehicle body structure comprises a passenger compartment and two longitudinal beams arranged in the width direction of a vehicle at intervals, and the longitudinal beams are connected with the passenger compartment; one of the supporting beams in each pair is fixedly connected between one longitudinal beam and the passenger compartment, and the other supporting beam in each pair is fixedly connected between the other longitudinal beam and the passenger compartment; in the height direction of the vehicle, the ends, away from the longitudinal beams, of at least part of the supporting beams are spaced from the longitudinal beams. According to the vehicle body structure, the supporting beams are arranged between the longitudinal beams and the passenger compartment, and at least part of the supporting beams and the longitudinal beams can be arranged at intervals in the height direction of the vehicle, so that external impact force transmitted to the longitudinal beams can be dispersed towards the passenger compartment under the action of the supporting beams; therefore, the situation that the safety of passengers sitting in the passenger compartment of the vehicle body is affected due to concentration of external impact force is avoided, and the safety performance of the vehicle body structure is improved.

Description

Technical Field

[0001] The present application relates to the field of vehicles, and in particular to a vehicle body structure, and a vehicle comprising the vehicle body structure. Background Art

[0002] In the prior art, a vehicle generally includes a body and an anti-collision beam connected to the body. When the vehicle is subjected to an external impact, the anti-collision beam can absorb part of the impact force to mitigate the impact force on the passenger compartment inside the body, thereby protecting the vehicle.

[0003] However, when the vehicle is subjected to a large external impact, the impact force absorbed by the anti-collision beam is limited, and the force transmission capacity of the vehicle body is insufficient, which affects the safety of passengers in the passenger compartment and reduces the safety performance of the vehicle. Summary of the invention

[0004] In view of the above-mentioned deficiencies of the prior art, the purpose of this application is to provide a vehicle body structure that can disperse the impact force and improve the safety performance, and a vehicle including the vehicle body structure. The specific technical solutions include the following:

[0005] In a first aspect, an embodiment of the present application provides a vehicle body structure, including a passenger compartment and two longitudinal beams spaced apart in a vehicle width direction, the longitudinal beams being connected to the passenger compartment;

[0006] at least one pair of support beams, one of the support beams in each pair being fixedly connected between one longitudinal beam and the passenger compartment, and the other of the support beams in each pair being fixedly connected between the other longitudinal beam and the passenger compartment;

[0007] In the height direction of the vehicle, at least one end of a portion of the support beam away from the longitudinal beam is spaced apart from the longitudinal beam.

[0008] The vehicle body structure of the present application is provided with two longitudinal beams connected to the passenger compartment, so that external impact can be transmitted to the passenger compartment through the two longitudinal beams respectively, avoiding the situation where the local deformation of the passenger compartment is too large due to the external impact acting on the passenger compartment being too concentrated, thereby improving the safety performance of the vehicle body structure of the present application.

[0009] The vehicle body structure of the present application also arranges support beams between each longitudinal beam and the passenger compartment, and enables at least part of the support beams to be arranged at intervals with the two longitudinal beams in the vehicle height direction, so that the external impact force can be transmitted to the passenger compartment via the longitudinal beams while being dispersed to the passenger compartment via each support beam, thereby dispersing the external impact force acting on the passenger compartment, reducing the impact of the external impact force on the passenger compartment, and thereby improving the safety performance of the vehicle body structure of the present application.

[0010] In one embodiment, the vehicle body structure includes at least one pair of first support beams and at least one pair of second support beams, and each longitudinal beam is connected to the passenger compartment through the first support beam and the second support beam; in the width direction of the vehicle, the end of the first support beam connected to the same longitudinal beam away from the longitudinal beam and the end of the second support beam away from the longitudinal beam are spaced apart.

[0011] In one embodiment, at least one pair of support beams includes at least one pair of third support beams, and each longitudinal beam is connected to the passenger compartment through the third support beam; along the height direction of the vehicle, the end of the third support beam connected to the same longitudinal beam away from the longitudinal beam and the end of the first support beam away from the longitudinal beam are spaced apart; and / or, along the height direction of the vehicle, the end of the third support beam connected to the same longitudinal beam away from the longitudinal beam and the end of the second support beam away from the longitudinal beam are spaced apart.

[0012] In one embodiment, a joint is provided at an end of each longitudinal beam facing the passenger compartment, and each longitudinal beam is connected to at least one of the first support beam, the second support beam, and the third support beam through the joint.

[0013] In one embodiment, the passenger compartment includes a rocker beam, the rocker beam extends along the front-rear direction of the vehicle, and the third support beam is connected to the rocker beam.

[0014] In one embodiment, in the vehicle front-rear direction, the third support beam is disposed at the rear side of the rocker beam, and a projection of the third support beam in the vehicle front-rear direction at least partially overlaps with a projection of the rocker beam in the vehicle front-rear direction.

[0015] In one embodiment, the third support beam is provided with a subframe mounting.

[0016] In one embodiment, the vehicle body structure further includes a first cross beam extending in a vehicle width direction, the first cross beam is connected to the passenger compartment, and the longitudinal beam is connected to the first cross beam.

[0017] In one embodiment, each first support beam is connected to the passenger compartment via a first cross beam; and / or each second support beam is connected to the passenger compartment via a first cross beam.

[0018] In one embodiment, the at least one pair of support beams further comprises at least one pair of fourth support beams, one end of each fourth support beam is connected to a longitudinal beam, and the other end is connected to the passenger compartment.

[0019] In one embodiment, in the vehicle height direction, the connection between each fourth support beam and the passenger compartment and the corresponding connected longitudinal beam are spaced apart; in the vehicle height direction, the end of the fourth support beam connected to the same longitudinal beam away from the longitudinal beam is spaced apart from the end of the first support beam away from the longitudinal beam; and / or, in the vehicle height direction, the end of the fourth support beam connected to the same longitudinal beam away from the longitudinal beam is spaced apart from the end of the second support beam away from the longitudinal beam.

[0020] In one embodiment, the vehicle body structure further includes a second cross beam extending in a vehicle width direction, the second cross beam is connected to the passenger compartment, and the longitudinal beam is connected to the second cross beam.

[0021] In one embodiment, each fourth support beam is connected to the passenger compartment via a second cross beam.

[0022] In one embodiment, the first cross beam and the second cross beam are spaced apart from each other along the height direction of the vehicle.

[0023] In one embodiment, the vehicle body structure further includes two wheel housings, each wheel housing is connected to a longitudinal beam, and along the front-rear direction of the vehicle, a fourth support beam is located between the passenger compartment and the wheel housings.

[0024] In one embodiment, the at least one pair of support beams further comprises at least one pair of fifth support beams, one end of each fifth support beam is connected to a wheel house, and the other end is connected to the passenger compartment.

[0025] In one embodiment, along the height direction of the vehicle, an end of a fifth support beam connected to the same longitudinal beam away from the longitudinal beam is spaced apart from an end of the fourth support beam away from the longitudinal beam.

[0026] In one embodiment, along the front-rear direction of the vehicle, two longitudinal beams are located at the rear side of the passenger compartment.

[0027] In one embodiment, the fifth support beam is connected to a D-pillar or a C-pillar of the passenger compartment.

[0028] In one embodiment, the vehicle body structure further includes a pair of oblique beams, each of which has one end connected to a wheel house and the other end connected to the longitudinal beam.

[0029] In one embodiment, along the height direction of the vehicle, the fifth support beam is connected to the end of the wheel arch away from the longitudinal beam; along the front-rear direction of the vehicle, the oblique beam is connected to the end of the longitudinal beam away from the passenger compartment.

[0030] In one embodiment, the vehicle body structure further includes an anti-collision beam and two mounting columns, the anti-collision beam is connected to the two longitudinal beams through the two mounting columns respectively, and the mounting columns are used to install an energy absorption box capable of absorbing external impact force transmitted from the anti-collision beam to the longitudinal beam.

[0031] In one embodiment, the diagonal beam is connected to the mounting column.

[0032] In one embodiment, the vehicle body structure further includes a wheel house cross beam, and the wheel house cross beam is connected between two wheel houses along the vehicle width direction.

[0033] In one embodiment, the vehicle body structure also includes two reinforcing beams. Along the width direction of the vehicle, the two reinforcing beams are located between two wheel arches, and the two reinforcing beams are arranged crosswise. Along the height direction of the vehicle, one end of a wheel arch away from the longitudinal beam and the longitudinal beam adjacent to the wheel arch are respectively connected to one end of the two reinforcing beams, and one end of the other wheel arch away from the longitudinal beam and the longitudinal beam adjacent to the wheel arch are respectively connected to the other ends of the two reinforcing beams.

[0034] In a second aspect, an embodiment of the present application provides a vehicle, including a body structure.

[0035] It can be understood that the vehicle provided in the second aspect of the present application has the effect of dispersing impact force and improving safety performance because it adopts the body structure provided in the first aspect of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A schematic structural diagram of a vehicle body structure provided in one embodiment of the present application;

[0037] Figure 2 This is a schematic diagram of the front view of a vehicle body structure provided in one embodiment of the present application;

[0038] Figure 3 A schematic diagram of a top view of a vehicle body structure provided in one embodiment of the present application;

[0039] Figure 4 A schematic diagram of a side view of a vehicle body structure provided in one embodiment of the present application;

[0040] Figure 5 A schematic cross-sectional view of a vehicle body structure provided in one embodiment of the present application;

[0041] Figure 6 A partially enlarged schematic diagram of a vehicle body structure provided in one embodiment of the present application;

[0042] Figure 7 A partial cross-sectional schematic diagram of a vehicle body structure provided in an embodiment of the present application. DETAILED DESCRIPTION

[0043] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are given in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thoroughly and comprehensively understood.

[0044] The following descriptions of the embodiments are with reference to the attached diagrams to illustrate specific embodiments that the present application can be used to implement. The serial numbers for the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present application, unless otherwise specified, include direct and indirect connections (couplings). The directional terms mentioned in the present application, such as "upper", "lower", "front", "back", "left", "right", "inside", "outside", "side", etc., are only with reference to the directions of the attached drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the present application, 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 therefore cannot be understood as a limitation to the present application.

[0045] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be fixedly connected, detachably connected, or integrally connected; it can be mechanically connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. It should be noted that the terms "first", "second", etc. in the specification and claims of this application and the drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including", "may include", "include", or "may include" used in this application indicate the existence of the corresponding functions, operations, elements, etc. disclosed, and do not limit one or more other functions, operations, elements, etc. In addition, the terms "including" or "include" indicate the existence of the corresponding features, numbers, steps, operations, elements, components, or combinations thereof disclosed in the specification, and do not exclude the existence or addition of one or more other features, numbers, steps, operations, elements, components, or combinations thereof, and are intended to cover non-exclusive inclusions.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0047] The present application provides a vehicle, including a body structure and a power system. The power system is accommodated in the body structure, and the power system is used to drive the body structure to move, thereby realizing the driving function of the vehicle of the present application.

[0048] See also Figure 1 The structure diagram of the vehicle body structure 100 provided in one embodiment of the present application is shown.

[0049] like Figure 1 As shown, the vehicle body structure 100 of the present application includes a passenger compartment 10 and two longitudinal beams 20. The two longitudinal beams 20 are arranged at intervals along the width direction of the vehicle and are respectively connected to the passenger compartment 10. Figure 1 In the illustration, the two longitudinal beams 20 are located at the rear side of the passenger compartment 10 along the front-rear direction of the vehicle.

[0050] For the convenience of description, the two longitudinal beams 20 are defined as a first longitudinal beam 20 a and a second longitudinal beam 20 b . The first longitudinal beam 20 a and the second longitudinal beam 20 b are arranged at intervals along the vehicle width direction and extend in parallel along the vehicle front-rear direction.

[0051] It can be understood that when an external object hits the vehicle from the rear side, the external impact force will be dispersed to the first longitudinal beam 20a and the second longitudinal beam 20b, and transmitted to the passenger compartment 10 by the first longitudinal beam 20a and the second longitudinal beam 20b respectively.

[0052] That is, the vehicle body structure 100 of the present application increases the force transmission path of the vehicle body structure 100 of the present application through the provision of two longitudinal beams 20, thereby improving the dispersion effect of the vehicle body structure 100 of the present application on the external impact force, reducing the situation where the local deformation of the passenger compartment 10 is too large due to the excessive concentration of external impact force acting on the passenger compartment 10, and further improving the safety performance of the vehicle body structure 100 of the present application.

[0053] It is understandable that in another embodiment, the two longitudinal beams 20 may also be disposed on the front side of the passenger compartment 10 , so that the external impact acting on the front side of the vehicle can be dispersed through the two longitudinal beams 20 and then transmitted to the passenger compartment 10 .

[0054] like Figure 1 As shown, the vehicle body structure 100 of the present application further includes at least one pair of support beams 30, wherein one end of one support beam 30 in each pair of support beams 30 is fixedly connected to the first longitudinal beam 20a, and the other end thereof extends toward the passenger compartment 10 and is fixedly connected to the passenger compartment 10. One end of the other support beam 30 in each pair of support beams 30 is fixedly connected to the second longitudinal beam 20b, and the other end thereof extends toward the passenger compartment 10 and is fixedly connected to the passenger compartment 10.

[0055] It is understandable that when an external object hits the rear side of the vehicle, the external impact force acting on each longitudinal beam 20 will be transmitted to the passenger compartment 10 by the longitudinal beam 20 and the support beam 30 fixed to the longitudinal beam 20. That is, the vehicle body structure 100 of the present application further increases the force transmission path of the vehicle body structure 100 of the present application by fixing one support beam 30 in each pair of support beams 30 between one longitudinal beam 20 and the passenger compartment 10, thereby further improving the dispersion effect of the vehicle body structure 100 of the present application on the external impact force and improving the safety performance of the vehicle body structure 100 of the present application.

[0056] In one embodiment, each pair of support beams 30 is symmetrically arranged relative to the two longitudinal beams 20. It can be understood that the symmetrically arranged support beams 30 make the external impact force transmitted to each support beam 30 relatively consistent, thereby avoiding the situation where the passenger compartment 10 has excessive local deformation due to excessive external impact force acting on the passenger compartment 10 on one side, thereby further improving the safety performance of the vehicle body structure 100 of the present application.

[0057] Therefore, compared with the prior art, the vehicle body structure 100 of the present application sets a support beam 30 between each longitudinal beam 20 and the passenger compartment 10, and enables each pair of support beams 30 to be symmetrically arranged relative to the two longitudinal beams 20, so that the external impact force can be transmitted to the passenger compartment 10 via the two longitudinal beams 20, and can also be dispersed to the passenger compartment 10 via the support beams 30 connected to each longitudinal beam 20, thereby dispersing the external impact force acting on the passenger compartment 10, reducing the local deformation of the passenger compartment 10 caused by excessive concentration of external impact force, and thereby improving the safety performance of the vehicle body structure 100 of the present application.

[0058] For ease of description, Figure 1 In the subsequent figures, the front-rear direction of the vehicle is set as the first direction 001, the width direction of the vehicle is set as the second direction 002, and the height direction of the vehicle is set as the third direction 003.

[0059] See also Figure 2 The front view of the vehicle body structure 100 provided in one embodiment of the present application is shown in FIG. Figure 1 .

[0060] like Figure 1 and Figure 2 As shown, along the second direction 002, the distance between any two support beams 30 and the longitudinal beam 20 is smaller than the distance between any two support beams 30 and the longitudinal beam 20. It can be understood that when the distance between any two support beams 30 and the longitudinal beam 20 is larger than the distance between any two support beams 30 and the passenger compartment 10, the corresponding two support beams 30 extend toward the passenger compartment 10 along the first direction 001 and also move closer to each other along the second direction 002.

[0061] When the external impact force is transmitted to the passenger compartment 10 via the two support beams 30 that are close to each other, the area of ​​the passenger compartment 10 connected to the two support beams 30 will be subjected to a larger external impact force, which may cause the area where the two support beams 30 and the passenger compartment 10 are connected to produce a larger deformation, affecting the space of the passenger compartment 10 and the safety of the passengers in the passenger compartment 10.

[0062] Therefore, the distance between the connections between any two support beams 30 and the longitudinal beam 20 is set to be smaller than the distance between the connections with the passenger compartment 10, which can avoid the phenomenon that the external impact force in the local area is too large due to the connection between the two support beams 30 and the passenger compartment 10 being too close, thereby further ensuring the dispersion effect of the vehicle body structure 100 of the present application on the external impact force, and further improving the safety performance of the vehicle body structure 100 of the present application.

[0063] In one embodiment, if Figure 1 and Figure 2 As shown, the vehicle body structure 100 of the present application includes a pair of first support beams 41 and a pair of second support beams 42. One of the first support beams 41 is connected between the first longitudinal beam 20a and the passenger compartment 10, and the other first support beam 41 is connected between the second longitudinal beam 20b and the passenger compartment 10.

[0064] One of the pair of second support beams 42 is connected between the first longitudinal beam 20 a and the passenger compartment 10 , and the other of the pair of second support beams 42 is connected between the second longitudinal beam 20 b and the passenger compartment 10 .

[0065] It can be understood that the arrangement of the first support beam 41 and the second support beam 42 enables each longitudinal beam 20 to be connected to the passenger compartment 10 through the first support beam 41 and the second support beam 42, so that the external impact force transmitted to each longitudinal beam 20 can be transmitted to the passenger compartment 10 via the first support beam 41 and the second support beam 42, further increasing the force transmission path of the vehicle body structure 100 of the present application, further improving the dispersion effect of the vehicle body structure 100 of the present application on the external impact force, and improving the safety performance of the vehicle body structure 100 of the present application.

[0066] In another embodiment, the number of pairs of the first support beams 41 may be two or more pairs. In other embodiments, the number of pairs of the second support beams 42 may be two or more pairs. This application does not impose any particular limitation on this.

[0067] In one embodiment, if Figure 1 and Figure 2 As shown, along the second direction 002 , an end of a first support beam 41 connected to the same longitudinal beam 20 away from the longitudinal beam 20 is spaced apart from an end of a second support beam 42 away from the longitudinal beam 20 .

[0068] Specifically, for the first support beam 41 and the second support beam 42 connected to the first longitudinal beam 20a, the end of the first support beam 41 away from the first longitudinal beam 20a is spaced apart from the end of the second support beam 42 away from the first longitudinal beam 20a. For the first support beam 41 and the second support beam 42 connected to the second longitudinal beam 20b, the end of the first support beam 41 away from the second longitudinal beam 20b is spaced apart from the end of the second support beam 42 away from the second longitudinal beam 20b.

[0069] It can be understood that the position setting of the first support beam 41 and the second support beam 42 connected to the same longitudinal beam 20 allows the external impact force transmitted to the first support beam 41 and the second support beam 42 via the longitudinal beam 20 to be relatively dispersed when acting on the passenger compartment 10, thereby avoiding the phenomenon that the local area is borne by excessive external impact force due to the connection between the first support beam 41 and the second support beam 42 and the passenger compartment 10 being too close, thereby further ensuring the dispersion effect of the vehicle body structure 100 of the present application on the external impact force, and further improving the safety performance of the vehicle body structure 100 of the present application.

[0070] In one embodiment, if Figure 1 and Figure 2 As shown, at least one pair of support beams 30 further includes a pair of third support beams 31, and each third support beam 31 is fixedly connected between a longitudinal beam 20 and the passenger compartment 10. That is, each longitudinal beam 20 is also connected to the passenger compartment 10 through the third support beam 31.

[0071] It can be understood that the provision of the third support beam 31 enables the external impact force transmitted to each longitudinal beam 20 to be simultaneously transmitted to the passenger compartment 10 via the first support beam 41, the second support beam 42 and the third support beam 31, further increasing the force transmission path of the vehicle body structure 100 of the present application, further improving the dispersion effect of the vehicle body structure 100 of the present application on the external impact force, and improving the safety performance of the vehicle body structure 100 of the present application.

[0072] In one embodiment, along the third direction 003, for the first support beam 41, the second support beam 42 and the third support beam 31 connected to the first longitudinal beam 20a, the first support beam 41 is spaced apart from one end of the first longitudinal beam 20a, the second support beam 42 is spaced apart from one end of the first longitudinal beam 20a, and the third support beam 31 is spaced apart from one end of the first longitudinal beam 20a.

[0073] For the first support beam 41, the second support beam 42 and the third support beam 31 connected to the second longitudinal beam 20b, the first support beam 41 is spaced apart from one end of the second longitudinal beam 20b, the second support beam 42 is spaced apart from one end of the second longitudinal beam 20b, and the third support beam 31 is spaced apart from one end of the second longitudinal beam 20b.

[0074] It can be understood that the position arrangement of the third support beam 31 and the first support beam 41 and the second support beam 42 connected to the same longitudinal beam 20 enables the external impact force transmitted to the first support beam 41, the second support beam 42 and the third support beam 31 via the longitudinal beam 20 to be further dispersed when acting on the passenger compartment 10, thereby further ensuring the dispersion effect of the vehicle body structure 100 of the present application on the external impact force and further improving the safety performance of the vehicle body structure 100 of the present application.

[0075] In another embodiment, along the third direction 003, the end of the third support beam 31 connected to the same longitudinal beam 20 away from the longitudinal beam 20 is only spaced apart from the end of the first support beam 41 away from the longitudinal beam 20. In another embodiment, along the third direction 003, the end of the third support beam 31 connected to the same longitudinal beam 20 away from the longitudinal beam 20 is only spaced apart from the end of the second support beam 42 away from the longitudinal beam 20.

[0076] It can be understood that the above two embodiments can also make the external impact force transmitted through the longitudinal beam 20 and acting on the passenger compartment 10 relatively dispersed, and can also ensure the dispersion effect of the vehicle body structure 100 of the present application on the external impact force, thereby improving the safety performance of the vehicle body structure 100 of the present application.

[0077] In one embodiment, each longitudinal beam 20 further includes a joint 21, which is located at the end surface of the longitudinal beam 20 facing the passenger compartment 10, and the first support beam 41, the second support beam 42 and the third support beam 31 are fixedly connected to the longitudinal beam 20 through the joint 21. That is, the provision of the joint 21 realizes the fixed connection between the first support beam 41, the second support beam 42 and the third support beam 31 and the longitudinal beam 20.

[0078] In one embodiment, the passenger compartment 10 includes a side panel 11, a bottom panel 12, and a top panel 13. The side panel 11 surrounds the outer edge of the bottom panel 12, and along the third direction 003, the top panel 13 is fixed to the surface of the side panel 11 away from the bottom panel 12, and the bottom panel 12, the side panel 11 and the top panel 13 cooperate to form the passenger compartment 10. A door (not shown in the figure) is provided on the side panel 11 along the second direction 002 to facilitate passengers to enter and exit the passenger compartment 10.

[0079] Among them, Figure 1 and Figure 2 As shown, the passenger compartment 10 further includes a threshold beam 14 , wherein the threshold beam 14 is located at the connection between the side panel 11 on which the vehicle door is provided and the bottom panel 12 , and the threshold beam 14 also extends along the first direction 001 .

[0080] In this embodiment, the sill beam 14 is connected to the third support beam 31 , and the side panel 11 of the passenger compartment 10 along the first direction 001 toward the longitudinal beam 20 is connected to the first support beam 41 and the second support beam 42 .

[0081] Since the integrity of the sill beam 14 in the first direction 001 is good, it has higher strength than the side panel 11 with the door. It can be understood that the third support beam 31 is fixed to the sill beam 14, so that the external impact force can be transmitted to the sill beam 14 via the third support beam 31, reducing the external impact force acting on the side panel 11, thereby reducing the impact of the external impact force on the passenger compartment 10, and further improving the safety performance of the vehicle body structure 100 of the present application.

[0082] In one embodiment, along the first direction 001 , the third support beam 31 is disposed at the rear side of the sill beam 14 , and a projection of the third support beam 31 in the first direction 001 at least partially overlaps with a projection of the sill beam 14 in the first direction 001 .

[0083] Since the third support beam 31 is connected between the longitudinal beam 20 and the sill beam 14 , when the external impact force is transmitted to the third support beam 31 via the longitudinal beam 20 , the external impact force is transmitted to the sill beam 14 along the extension axis direction of the third support beam 31 .

[0084] It can be understood that the projection relationship between the third support beam 31 and the threshold beam 14 makes the angle between the extension axis of the third support beam 31 and the extension axis of the threshold beam 14 relatively small, thereby avoiding the threshold beam 14 from widening to both sides along the second direction 002 under the action of external impact force, ensuring the threshold beam 14's absorption effect of external impact force, thereby ensuring the safety of the passenger compartment 10.

[0085] In one embodiment, the third support beams 31 may be provided in multiple pairs, and the ends of the third support beams 31 connected to each longitudinal beam 20 away from the longitudinal beam 20 are spaced from each other. It can be understood that the provision of multiple pairs of third support beams 31 can further increase the force transmission path of the vehicle body structure 100 of the present application, further improve the dispersion effect of the vehicle body structure 100 of the present application on the external impact force, and further improve the safety performance of the vehicle body structure 100 of the present application.

[0086] At the same time, based on the connection between the third support beam 31 and the threshold beam 14, it can be understood that the provision of multiple third support beams 31 also enables the vehicle body structure 100 of the present application to disperse the external impact force transmitted to the threshold beam 14. This prevents the threshold beam 14 from being damaged due to excessive local impact force, thereby ensuring the connection stability of the vehicle body structure 100 of the present application.

[0087] In one embodiment, a subframe mounting seat 50 is provided on the third support beam 31. The subframe mounting seat 50 is used to install a subframe of the vehicle for isolating vibration and noise. Since the third support beam 31 is connected to the sill beam 14, and the sill beam 14 is connected to the bottom plate 12. It can be understood that the subframe mounting seat 50 is provided on the third support beam 31, so that the subframe installed on the subframe mounting seat 50 can isolate the passenger compartment 10 from the noise of the external environment, thereby improving the passenger experience in the passenger compartment 10.

[0088] In one embodiment, if Figure 1 As shown, the vehicle body structure 100 of the present application further includes a first cross beam 61, which is fixed to the side panel 11 of the passenger compartment 10 facing the longitudinal beam 20, and the extension direction of the first cross beam 61 is parallel to the arrangement direction of the two longitudinal beams 20. That is, the first cross beam 61 extends along the second direction 002. The longitudinal beam 20 is connected to the first cross beam 61.

[0089] Specifically, in one embodiment, Figure 1 As shown, each first support beam 41 and each second support beam 42 is connected to the passenger compartment 10 via a first cross beam 61 .

[0090] It can be understood that the provision of the first cross beam 61 further increases the contact area between the longitudinal beam 20 and the side panel 11, so that when the external impact force is transmitted to the side panel 11 via the first support beam 41 and the second support beam 42, it can be diffused to the surface of the side panel 11 under the action of the first cross beam 61, thereby further dispersing the external impact force, further improving the dispersing effect of the vehicle body structure 100 of the present application on the external impact force, and further improving the safety performance of the vehicle body structure 100 of the present application.

[0091] At the same time, since the external impact force may also appear from both sides of the vehicle during the operation of the vehicle, this part of the impact force will not be transmitted to the passenger compartment 10 via the longitudinal beam 20, but directly acts on the passenger compartment 10 along the second direction 002. Based on the fact that the first cross beam 61 also extends along the second direction 002. It can be understood that the setting of the first cross beam 61 can absorb the side impact force during the side collision, thereby reducing the impact of the external impact on the passenger compartment 10. Further improve the safety performance of the vehicle body structure 100 of the present application.

[0092] It is understandable that in other embodiments, the first cross beam 61 may also be connected only to the first support beam 41 or only to the second support beam 42. The present application does not impose any particular limitation on this.

[0093] In one embodiment, the at least one pair of support beams 30 further includes a pair of fourth support beams 32 , and one end of each fourth support beam 32 is connected to a longitudinal beam 20 , and the other end is connected to the passenger compartment 10 .

[0094] It can be understood that the setting of the fourth support beam 32 enables the external impact force to be transmitted to the passenger compartment 10 through the first support beam 41, the second support beam 42, and the third support beam 31, while also being transmitted to the passenger compartment 10 through the fourth support beam 32, so as to further increase the force transmission path of the vehicle body structure 100 of the present application, further enhance the dispersion effect of the vehicle body structure 100 of the present application on the external impact force, and further enhance the safety performance of the vehicle body structure 100 of the present application.

[0095] In one embodiment, along the third direction 003, the connection between each fourth support beam 32 and the passenger compartment 10 is spaced apart from the correspondingly connected longitudinal beam 20, so that the external impact transmitted from the longitudinal beam 20 to the passenger compartment 10 can be relatively dispersed into the passenger compartment 10, thereby improving the dispersion effect of the vehicle body structure 100 of the present application on the external impact force, and further improving the safety performance of the vehicle body structure 100 of the present application.

[0096] Specifically, along the third direction 003, for the first support beam 41, the second support beam 42 and the fourth support beam 32 connected to the first longitudinal beam 20a, the first support beam 41 is spaced apart from one end of the first longitudinal beam 20a, the second support beam 42 is spaced apart from one end of the first longitudinal beam 20a, and the fourth support beam 32 is spaced apart from one end of the first longitudinal beam 20a.

[0097] For the first support beam 41, the second support beam 42 and the fourth support beam 32 connected to the second longitudinal beam 20b, the first support beam 41 is spaced apart from one end of the second longitudinal beam 20b, the second support beam 42 is spaced apart from one end of the second longitudinal beam 20b, and the fourth support beam 32 is spaced apart from one end of the second longitudinal beam 20b.

[0098] It can be understood that the position setting of the fourth support beam 32 and the first support beam 41 and the second support beam 42 connected to the same longitudinal beam 20 allows the external impact force transmitted to the first support beam 41, the second support beam 42 and the fourth support beam 32 via the longitudinal beam 20 to be further dispersed when acting on the passenger compartment 10, thereby further ensuring the dispersion effect of the body structure 100 of the present application on the external impact force and further improving the safety performance of the body structure 100 of the present application.

[0099] In another embodiment, along the third direction 003, the end of the fourth support beam 32 connected to the same longitudinal beam 20 away from the longitudinal beam 20 is only spaced apart from the end of the first support beam 41 away from the longitudinal beam 20. In another embodiment, along the third direction 003, the end of the fourth support beam 32 connected to the same longitudinal beam 20 away from the longitudinal beam 20 is only spaced apart from the end of the second support beam 42 away from the longitudinal beam 20.

[0100] It can be understood that the above two embodiments can also make the external impact force transmitted through the longitudinal beam 20 and acting on the passenger compartment 10 relatively dispersed, and can also ensure the dispersion effect of the vehicle body structure 100 of the present application on the external impact force, thereby improving the safety performance of the vehicle body structure 100 of the present application.

[0101] In one embodiment, the fourth support beams 32 may be provided in multiple pairs, and the fourth support beams 32 connected to each longitudinal beam 20 are spaced apart from each other at one end away from the longitudinal beam 20. It can be understood that the provision of multiple pairs of fourth support beams 32 can further increase the force transmission path of the vehicle body structure 100 of the present application, further improve the dispersion effect of the vehicle body structure 100 of the present application on the external impact force, and further improve the safety performance of the vehicle body structure 100 of the present application.

[0102] In one embodiment, if Figure 1 As shown, the vehicle body structure 100 of the present application further includes a second cross beam 62, which is fixed to the side panel 11 of the passenger compartment 10 facing the longitudinal beam 20, and the extension direction of the second cross beam 62 is parallel to the arrangement direction of the two longitudinal beams 20. That is, the second cross beam 62 extends along the second direction 002. The longitudinal beam 20 is connected to the second cross beam 62.

[0103] Specifically, in one embodiment, Figure 1 As shown, each fourth support beam 32 is connected to the passenger compartment 10 via a second cross beam 62 .

[0104] It can be understood that the provision of the second cross beam 62 further increases the contact area between the longitudinal beam 20 and the side panel 11, so that when the external impact force is transmitted to the side panel 11 via the fourth support beam 32, it can be diffused to the surface of the side panel 11 under the action of the second cross beam 62, thereby further dispersing the external impact force, further improving the dispersion effect of the vehicle body structure 100 of the present application on the external impact force, and further improving the safety performance of the vehicle body structure 100 of the present application.

[0105] At the same time, since the external impact force may also appear from both sides of the vehicle during the operation of the vehicle, this part of the impact force will not be transmitted to the passenger compartment 10 via the longitudinal beam 20, but directly acts on the passenger compartment 10 along the second direction 002. Since the second cross beam 62 also extends along the second direction 002. It can be understood that the second cross beam 62 can absorb the side impact force during the side collision, thereby reducing the impact of the external impact on the passenger compartment 10. Further improve the safety performance of the vehicle body structure 100 of the present application.

[0106] In one embodiment, if Figure 1As shown, along the third direction 003, the first cross beam 61 and the second cross beam 62 are spaced apart. It can be understood that the spacing of the first cross beam 61 and the second cross beam 62 can reduce the concentration of the external impact force when it is transmitted to the passenger compartment 10 through the first cross beam 61 and the second cross beam 62, thereby further dispersing the external impact force, further improving the dispersing effect of the vehicle body structure 100 of the present application on the external impact force, and further improving the safety performance of the vehicle body structure 100 of the present application.

[0107] In one embodiment, if Figure 1 and Figure 2 As shown, the vehicle body structure 100 of the present application further includes two wheel housings 71, each wheel housing 71 being connected to the middle portion of a longitudinal beam 20. Along the first direction 001, the fourth support beam 32 is located between the passenger compartment 10 and the wheel housing 71.

[0108] Based on the wheel cover 71 connected to the middle of the longitudinal beam 20. It can be understood that the fourth support beam 32 is arranged between the wheel cover 71 and the passenger compartment 10, so that the external impact force transmitted to the passenger compartment 10 via the longitudinal beam 20 can be transmitted from the middle of the longitudinal beam 20 through the wheel cover 71, avoiding the situation where the external impact force is transmitted from the end of the longitudinal beam 20, resulting in excessive local stress in the longitudinal beam 20. In addition, the number of force transmission paths between the longitudinal beam 20 and the passenger compartment 10 is guaranteed, and the safety performance of the vehicle body structure 100 of the present application is further improved.

[0109] In one embodiment, at least one pair of support beams 30 further includes a fifth support beam 33 , one end of each fifth support beam 33 is connected to the longitudinal beam 20 via a wheel cover 71 , and the other end is connected to the passenger compartment 10 .

[0110] It can be understood that the setting of the fifth support beam 33 enables the external impact force to be transmitted to the passenger compartment 10 through the first support beam 41, the second support beam 42, the third support beam 31 and the fourth support beam 32, and can also be transmitted to the passenger compartment 10 through the fifth support beam 33, so as to further increase the force transmission path of the vehicle body structure 100 of the present application, further enhance the dispersion effect of the vehicle body structure 100 of the present application on the external impact force, and further enhance the safety performance of the vehicle body structure 100 of the present application.

[0111] In one embodiment, along the third direction 003, the end of the fifth support beam 33 connected to the same longitudinal beam 20 away from the longitudinal beam 20 is spaced apart from the end of the fourth support beam 32 away from the longitudinal beam 20, so that the external impact force transmitted to the fourth support beam 32 and the fifth support beam 33 via the longitudinal beam 20 can be further dispersed when acting on the passenger compartment 10, thereby further ensuring the dispersion effect of the vehicle body structure 100 of the present application on the external impact force, and further improving the safety performance of the vehicle body structure 100 of the present application.

[0112] In one embodiment, the fifth support beam 33 is connected to the top plate 13 of the passenger compartment 10, so that the external impact force transmitted by the longitudinal beam 20 can be transmitted to the top plate 13 via the fifth support beam 33, further reducing the external impact force acting on the side panel 11 of the passenger compartment 10 toward the longitudinal beam 20, thereby further improving the safety performance of the vehicle body structure 100 of the present application.

[0113] Specifically, Figure 1 and Figure 2 As shown, support columns 111 are provided on two side panels 11 of the passenger compartment 10 along the second direction 002 , and the support columns 111 are used to support and connect the top panel 13 and the bottom panel 12 . Exemplarily, the support columns 111 may be D-pillars or C-pillars of the passenger compartment 10 .

[0114] Among them, the fifth support beam 33 is connected to the connection between the support column 111 and the top plate 13 to further reduce the external impact force acting on the side panel 11 of the passenger compartment 10 toward the longitudinal beam 20, thereby further improving the safety performance of the vehicle body structure 100 of the present application.

[0115] In one embodiment, the vehicle body structure of the present application further includes a pair of oblique beams 72, one end of each oblique beam 72 is connected to a wheel housing 71, and the other end is connected to the longitudinal beam 20. Figure 1 and Figure 2 As shown, along the third direction 003 , the fifth support beam 33 is connected to the end of the wheel house 71 away from the longitudinal beam 20 , and along the first direction 001 , the oblique beam 72 is connected to the end of the longitudinal beam 20 away from the passenger compartment 10 .

[0116] It can be understood that when the external impact force is transmitted to the longitudinal beam 20, it can also be transmitted to the wheel house 71 via the oblique beam 72, and transmitted to the passenger compartment 10 by the wheel house 71 and the fifth support beam 33, thereby reducing the stress concentration on each longitudinal beam 20, thereby ensuring the force transmission path of the body structure 100 of the present application, and further ensuring the safety performance of the body structure 100 of the present application.

[0117] In one embodiment, if Figure 1 and Figure 2 As shown, the vehicle body structure 100 of the present application further includes an anti-collision beam 73 and two mounting columns 74, and the two mounting columns 74 are respectively fixed between the anti-collision beam 73 and the longitudinal beam 20. The anti-collision beam 73 extends along the second direction 002, and the anti-collision beam 73 is arranged at the rear side of the vehicle along the first direction 001 to receive external impact. That is, the external impact can be transmitted to the two longitudinal beams 20 via the anti-collision beam 73, and then transmitted to the passenger compartment 10 by the two longitudinal beams 20.

[0118] An energy absorption box (not shown in the figure) can be set in the mounting column 74 to absorb the external impact force transmitted to the longitudinal beam 20 through the anti-collision beam 73, thereby reducing the external impact force transmitted through the vehicle body structure 100 of the present application, further reducing the external impact force acting on the passenger compartment 10, and further improving the safety performance of the vehicle body structure 100 of the present application.

[0119] In one embodiment, if Figure 1 and Figure 2 As shown, the diagonal beam 72 is connected to the mounting column 74.

[0120] See also Figure 3 The schematic diagram of the top view of the vehicle body structure 100 provided in one embodiment of the present application is shown, and please refer to Figure 4 The side view of the vehicle body structure 100 provided in one embodiment of the present application is shown in FIG. Figure 1 and Figure 2 .

[0121] like Figure 1-Figure 4 As shown, a pair of wheel covers 71 are respectively a first wheel cover 71a and a second wheel cover 71b. Along the third direction 003, the first wheel cover 71a is fixed to the surface of the first longitudinal beam 20a facing the top plate 13 of the passenger compartment 10, and the second wheel cover 71b is fixed to the surface of the second longitudinal beam 20b facing the top plate 13 of the passenger compartment 10. The vehicle body structure 100 of the present application further includes a wheel cover cross beam 81, and the opposite ends of the wheel cover cross beam 81 are respectively fixedly connected to the first wheel cover 71a and the second wheel cover 71b.

[0122] It can be understood that the setting of the wheel arch cross beam 81 limits the relative position relationship between the first longitudinal beam 20a and the second longitudinal beam 20b, avoiding the displacement of the first longitudinal beam 20a and the second longitudinal beam 20b along the second direction 002 under the action of external impact force, thereby improving the stability of the body structure 100 of the present application.

[0123] On the other hand, the arrangement of the wheel housing cross beam 81 can also connect the first wheel housing 71a and the second wheel housing 71b as a whole, thereby improving the stiffness performance of the wheel housing 71. At the same time, the first longitudinal beam 20a and the second longitudinal beam 20b can also be connected as a whole, which is beneficial to improving the stiffness of the vehicle body structure 100 of the present application, improving the overall stiffness of the vehicle body structure 100 of the present application, thereby improving the vehicle's handling and the vibration and noise performance of the vehicle.

[0124] In one embodiment, if Figure 1-Figure 4 As shown, the vehicle body structure 100 of the present application further includes two reinforcing beams 82, which are respectively a first reinforcing beam 82a and a second reinforcing beam 82b, and the first reinforcing beam 82a and the second reinforcing beam 82b are cross-arranged between the first wheel cover 71a and the second wheel cover 71b.

[0125] One end of the first reinforcing beam 82a is fixedly connected to the surface of the first longitudinal beam 20a facing the second longitudinal beam 20b, and the other end is fixedly connected to the second wheel housing 71b. One end of the second reinforcing beam 82b is fixedly connected to the surface of the second longitudinal beam 20b facing the first longitudinal beam 20a, and the other end is fixedly connected to the first wheel housing 71a.

[0126] It can be understood that the cross-setting of the first reinforcing beam 82a and the second reinforcing beam 82b can cooperate with the wheel arch cross beam 81 to further enhance the rigidity and stability of the vehicle body structure 100 of the present application, thereby enhancing the overall rigidity of the vehicle body structure 100 of the present application, thereby improving the vehicle's handling and vehicle vibration and noise performance.

[0127] In this embodiment, the first reinforcing beam 82a and the second reinforcing beam 82b may be spaced apart from each other along the first direction 001. In another embodiment, the first reinforcing beam 82a and the second reinforcing beam 82b may also overlap each other and be integrated. This application does not impose any particular limitation on this.

[0128] See also Figure 5 The cross-sectional structure diagram of the vehicle body structure 100 provided in one embodiment of the present application is shown in FIG. Figure 1 .

[0129] like Figure 1 and Figure 5 As shown, the top plate 13 of the passenger compartment 10 and the side plate 11 facing the anti-collision beam 73 cooperate to form a body cross beam 15, and the body cross beam 15 extends along the second direction 002 to cooperate with the first cross beam 61 and the second cross beam 62 to absorb the side impact force, thereby improving the safety performance of the body structure 100 of the present application.

[0130] In one embodiment, if Figure 1 and Figure 5 As shown, a first cavity 611 is provided in the first cross beam 61. When an external impact force is transmitted to the first cross beam 61 via the first support beam 41 and the second support beam 42, the external impact force causes the surface of the first cross beam 61 in contact with the first support beam 41 and the second support beam 42 to deform, thereby compressing the space of the first cavity 611, thereby reducing the influence of the external impact force on the side plate 11.

[0131] That is, the setting of the first cavity 611 in the first cross beam 61 can absorb the external impact force, reduce the external impact force acting on the side panel 11, thereby reducing the impact of the external impact force on the passenger compartment 10, and further improve the safety performance of the vehicle body structure 100 of the present application.

[0132] On the other hand, a second cavity (not shown in the figure) is provided in the second cross beam 62. When the external impact force is transmitted to the second cross beam 62 via the fourth support beam 32, the external impact force will cause the contact surface of the second cross beam 62 and the fourth support beam 32 to deform, so as to compress the space of the second cavity, thereby reducing the influence of the external impact force on the side plate 11.

[0133] That is, the provision of the second cavity within the second cross beam 62 can absorb the external impact force, reduce the external impact force acting on the side panel 11, thereby reducing the impact of the external impact force on the passenger compartment 10, and further improving the safety performance of the vehicle body structure 100 of the present application.

[0134] It is understandable that in other embodiments, each cross beam in the vehicle body structure 100 of the present application may be provided with a cavity, or only partially provided with a cavity, and the present application does not impose any particular limitation on this.

[0135] See also Figure 6 The partially enlarged schematic diagram of the vehicle body structure 100 provided in one embodiment of the present application is shown, and please refer to Figure 7 The partial cross-sectional diagram of the vehicle body structure 100 provided in one embodiment of the present application is shown in FIG. Figure 1 and Figure 5 In order to facilitate the description of the connection relationship between each cross beam and the corresponding longitudinal beam, Figure 6 and Figure 7 Only the connection relationship between the first crossbeam 61 and the first support beam 41 is shown, but for the actual structure of the present application, the connection relationship between the first crossbeam 61 and the second support beam 42, and the connection relationship between the second crossbeam 62 and the fourth support beam 32 can be Figure 6 and Figure 7 As shown in the figure.

[0136] like Figure 1 , Figure 5 , Figure 6 and Figure 7 As shown, the first cross beam 61 includes a fitting portion 612 and a protruding portion 613, wherein two fitting portions 612 are provided and are arranged on opposite sides of the protruding portion 613 along the third direction 003 and fit with the side plate 11, and the protruding portion 613 extends toward the first support beam 41 to cooperate to form the first cavity 611. The first support beam 41 is fixed to the surface of the protruding portion 613 away from the side plate 11.

[0137] At the same time, the first cavity 611 accommodates a positioning member 614, which includes a protrusion 6141 and a connecting portion 6142 located on opposite sides of the protrusion 6141. The connecting portion 6142 is fixedly connected to the surface of the protrusion 613 facing the side panel 11, and the protrusion 6141 extends toward the side panel 11 and contacts the side panel 11.

[0138] like Figure 7 As shown, the projection of the first support beam 41 on the side plate 11 is contained within the projection of the protrusion 6141 on the side plate 11. It can be understood that the arrangement of the positioning member 614 in the first cavity 611 can increase the elastic modulus of the convex portion 613 of the first support beam 41 in contact with the first cross beam 61, so that the external impact force transmitted to the first cross beam 61 via the first support beam 41 can be reduced under the cooperation of the convex portion 613 and the positioning member 614, and the external impact force acting on the side plate 11 can be further improved. The safety performance of the vehicle body structure 100 of the present application is further improved.

[0139] In one embodiment, the vehicle body structure 100 of the present application further includes an installation end plate 90, and the installation end plate 90 is fixed between the support beam 30 and the passenger compartment 10. Specifically, Figure 1 , Figure 6 and Figure 7 As shown, the mounting end plate 90 is attached to the surface of the raised portion 613 of the first cross beam 61 away from the side plate 11, and one end is fixedly connected to the first support beam 41, and the other end passes through the raised portion 613 and is fixedly connected to the connecting portion 6142 to achieve a fixed connection between the first support beam 41 and the first cross beam 61.

[0140] That is, the mounting end plate 90 can cooperate with the positioning piece 614 in the first cavity 611 to improve the connection strength and rigidity of the first support beam 41 and the first cross beam 61 while achieving a fixed connection between the first support beam 41 and the first cross beam 61, thereby improving the connection stability of the vehicle body structure 100 of the present application.

[0141] Based on the fact that the mounting end plate 90 has a larger cross-sectional area than the end surface of the first support beam 41 facing the side plate 11, it can be understood that the setting of the mounting end plate 90 can further disperse the external impact force and further improve the safety performance of the vehicle body structure 100 of the present application.

[0142] In one embodiment, if Figure 1 , Figure 3 and Figure 4 As shown, the vehicle body structure 100 of the present application also includes a positioning beam 83. There are two positioning beams 83, namely a first positioning beam 831 and a second positioning beam 832. The first positioning beam 831 and the second positioning beam 832 are both located between the first longitudinal beam 20a and the second longitudinal beam 20b, and along the first direction 001, the first positioning beam 831 and the second positioning beam 832 are arranged on opposite sides of the wheel arch beam 81, and the second positioning beam 832 is close to the anti-collision beam 73.

[0143] It can be understood that the setting of the first positioning beam 831 and the second positioning beam 832 further limits the relative position relationship between the first longitudinal beam 20a and the second longitudinal beam 20b, avoiding the displacement of the first longitudinal beam 20a and the second longitudinal beam 20b along the second direction 002 under the action of external impact force, thereby further improving the stability of the body structure 100 of the present application.

[0144] On the other hand, the provision of the first positioning beam 831 and the second positioning beam 832 can also connect the first longitudinal beam 20a and the second longitudinal beam 20b as a whole, which is beneficial to improving the rigidity of the vehicle body structure 100 of the present application, thereby improving the vehicle's handling and vehicle vibration and noise performance.

[0145] In one embodiment, if Figure 1 and Figure 5 As shown, a buffer cavity 16 is further provided in the passenger compartment 10 , and the buffer cavity 16 is arranged on a side of the passenger compartment 10 close to the longitudinal beam 20 along the first direction 001 .

[0146] Among them, each structure connecting the longitudinal beam 20 of the present application to the passenger compartment 10 is connected to the side plate 11, the bottom plate 12 and the top plate 13 forming the buffer cavity 16. Therefore, the external impact force transmitted to the passenger compartment 10 through the longitudinal beam 20 of the present application can be first absorbed by the buffer cavity 16 and then transmitted to the passenger compartment 10, thereby further improving the safety performance of the vehicle body structure 100 of the present application.

[0147] It should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0148] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0149] It should be understood that the application of the present application is not limited to the above examples. For ordinary technicians in the field, improvements or changes can be made according to the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to this application. Ordinary technicians in the field can understand that all or part of the processes of the above embodiments are implemented, and equivalent changes made according to the claims of the present invention still fall within the scope of the present invention.

Claims

1. A vehicle body structure, characterized in that: It includes a passenger compartment and two longitudinal beams arranged at intervals in the width direction of the vehicle, wherein the longitudinal beams are connected to the passenger compartment; at least one pair of support beams, one of the support beams in each pair being fixedly connected between one of the longitudinal beams and the passenger compartment, and the other of the support beams in each pair being fixedly connected between the other longitudinal beam and the passenger compartment; In the height direction of the vehicle, at least part of the support beam is spaced apart from the longitudinal beam at one end away from the longitudinal beam.

2. The vehicle body structure according to claim 1, characterized in that: The vehicle body structure includes at least one pair of first support beams and at least one pair of second support beams, and each of the longitudinal beams is connected to the passenger compartment through the first support beam and the second support beam; In the vehicle width direction, one end of the first support beam and one end of the second support beam connected to the same longitudinal beam, which are remote from the longitudinal beam, are spaced apart from each other.

3. The vehicle body structure according to claim 2, characterized in that: The at least one pair of support beams includes at least one pair of third support beams, and each of the longitudinal beams is connected to the passenger compartment through the third support beams; Along the height direction of the vehicle, an end of the third support beam connected to the same longitudinal beam away from the longitudinal beam and an end of the first support beam away from the longitudinal beam are arranged at intervals; and / or, Along the vehicle height direction, an end of the third support beam connected to the same longitudinal beam away from the longitudinal beam is spaced apart from an end of the second support beam away from the longitudinal beam.

4. The vehicle body structure according to claim 3, characterized in that: Each of the longitudinal beams is provided with a joint at an end portion facing the passenger compartment, and each of the longitudinal beams is connected to at least one of the first support beam, the second support beam, and the third support beam through the joint.

5. The vehicle body structure according to claim 3, characterized in that: The passenger compartment includes a sill beam, the sill beam extends along the front-rear direction of the vehicle, and the third support beam is connected to the sill beam.

6. The vehicle body structure according to claim 5, characterized in that: In the vehicle front-rear direction, the third support beam is disposed at the rear side of the rocker beam, and a projection of the third support beam in the vehicle front-rear direction at least partially overlaps a projection of the rocker beam in the vehicle front-rear direction.

7. The vehicle body structure according to claim 3, characterized in that: The third support beam is provided with a sub-frame mounting seat.

8. The vehicle body structure according to claim 2, characterized in that: The vehicle body structure further includes a first cross beam extending in a vehicle width direction, the first cross beam being connected to the passenger compartment, and the longitudinal beam being connected to the first cross beam.

9. The vehicle body structure according to claim 8, characterized in that: Each of the first support beams is connected to the passenger compartment via the first cross beam; and / or, Each of the second support beams is connected to the passenger compartment through the first cross beam.

10. The vehicle body structure according to claim 8, characterized in that: The at least one pair of support beams also includes at least one pair of fourth support beams, one end of each of the fourth support beams is connected to one of the longitudinal beams, and the other end is connected to the passenger compartment.

11. The vehicle body structure according to claim 10, characterized in that: In the height direction of the vehicle, the connection between each of the fourth support beams and the passenger compartment and the correspondingly connected longitudinal beam are arranged at intervals; In the vehicle height direction, an end of the fourth support beam connected to the same longitudinal beam away from the longitudinal beam is spaced apart from an end of the first support beam away from the longitudinal beam; and / or, In the vehicle height direction, an end of the fourth support beam connected to the same longitudinal beam away from the longitudinal beam is spaced apart from an end of the second support beam away from the longitudinal beam.

12. The vehicle body structure according to claim 11, characterized in that: The vehicle body structure further includes a second cross beam extending in a vehicle width direction, the second cross beam being connected to the passenger compartment, and the longitudinal beam being connected to the second cross beam.

13. The vehicle body structure according to claim 12, characterized in that: Each of the fourth support beams is connected to the passenger compartment via the second cross beam.

14. The vehicle body structure according to claim 12, characterized in that: The first cross beam and the second cross beam are spaced apart from each other along a height direction of the vehicle.

15. The vehicle body structure according to claim 10, characterized in that: The vehicle body structure further includes two wheel housings, each of which is connected to one of the longitudinal beams, and along the front-rear direction of the vehicle, the fourth support beam is located between the passenger compartment and the wheel housings.

16. The vehicle body structure according to claim 15, characterized in that: The at least one pair of support beams also includes at least one pair of fifth support beams, one end of each of the fifth support beams is connected to one of the wheel houses, and the other end is connected to the passenger compartment.

17. The vehicle body structure according to claim 16, characterized in that: Along the vehicle height direction, an end of the fifth support beam connected to the same longitudinal beam away from the longitudinal beam is spaced apart from an end of the fourth support beam away from the longitudinal beam.

18. The vehicle body structure according to claim 16, characterized in that: Along the front-rear direction of the vehicle, the two longitudinal beams are located at the rear side of the passenger compartment.

19. The vehicle body structure according to claim 18, characterized in that: The fifth support beam is connected to the D-pillar or the C-pillar of the passenger compartment.

20. The vehicle body structure according to claim 16, characterized in that: The vehicle body structure also includes a pair of oblique beams, one end of each oblique beam is connected to one of the wheel covers, and the other end is connected to the longitudinal beam.

21. The vehicle body structure according to claim 20, characterized in that: Along the height direction of the vehicle, the fifth support beam is connected to an end of the wheel arch away from the longitudinal beam; along the front-rear direction of the vehicle, the oblique beam is connected to an end of the longitudinal beam away from the passenger compartment.

22. The vehicle body structure according to claim 20, characterized in that: The vehicle body structure further includes an anti-collision beam and two mounting columns, wherein the anti-collision beam is connected to the two longitudinal beams through the two mounting columns respectively, and the mounting columns are used to install an energy absorption box capable of absorbing external impact force transmitted from the anti-collision beam to the longitudinal beam.

23. The vehicle body structure according to claim 22, characterized in that: The inclined beam is connected to the mounting column.

24. The vehicle body structure according to claim 15, characterized in that: The vehicle body structure further includes a wheel house cross beam connected between the two wheel houses along the vehicle width direction.

25. The vehicle body structure according to claim 15, characterized in that: The vehicle body structure further comprises two reinforcing beams, which are located between the two wheel housings along the vehicle width direction, and the two reinforcing beams are arranged crosswise; Along the vehicle height direction, one end of the wheel arch away from the longitudinal beam and the longitudinal beam adjacent to the wheel arch are respectively connected to one end of the two reinforcing beams, and another end of the wheel arch away from the longitudinal beam and the longitudinal beam adjacent to the wheel arch are respectively connected to the other end of the two reinforcing beams.

26. A vehicle, characterized in that: Comprising a vehicle body structure as described in any one of claims 1-25.

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