Vehicle body structure and vehicle having the same

Abstract

The application relates to the technical field of a vehicle body, and provides a vehicle body structure and a vehicle with the same. The vehicle body structure comprises a front wall assembly, a middle channel assembly connected with the front wall assembly, and a support structure arranged between the front wall assembly and the middle channel assembly. The support structure comprises support longitudinal beams arranged on the left side and the right side, and a support transverse beam connected between the two support longitudinal beams. The front end of each support longitudinal beam is connected with the front wall assembly, the rear end of each support longitudinal beam extends rearward and downward, and is connected with the middle channel assembly. The two support longitudinal beams are made of extruded profiles. As viewed from the cross section of each support longitudinal beam, each support longitudinal beam has an outer side part and an inner side part with a larger thickness than the outer side part. The support transverse beam is connected with the inner side part. The application can improve the reinforcing support effect of the support structure between the front wall assembly and the middle channel assembly, improve the response capability of the front wall position of the vehicle body in the front collision of the vehicle, and is beneficial to improving the safety performance of the whole vehicle.

Description

Technical Field

[0001] This application relates to the field of vehicle body technology, and in particular to a vehicle body structure and a vehicle having the same. Background Technology

[0002] To improve vehicle safety in frontal collisions, some vehicle bodies incorporate a reinforced structure between the front bulkhead assembly and the center tunnel assembly to support the front bulkhead assembly and resist intrusion of the front engine compartment structure into the passenger compartment.

[0003] However, the current reinforcement structure located between the front bulkhead assembly and the central tunnel assembly still has its own limited rigidity and strength, making it difficult to fully improve the vehicle's front bulkhead collision response capability, which is not conducive to improving the overall vehicle safety performance. Utility Model Content

[0004] In view of this, this application aims to propose a vehicle body structure to improve the overall vehicle safety performance.

[0005] To achieve the above objectives, the technical solution of this application is implemented as follows: A vehicle body structure includes a front bulkhead assembly, a central tunnel assembly connected to the front bulkhead assembly, and a support structure disposed between the front bulkhead assembly and the central tunnel assembly; The support structure includes support longitudinal beams disposed on the left and right sides, and support crossbeams connecting the support longitudinal beams on both sides. The front end of each support longitudinal beam is connected to the front bulkhead assembly, and the rear end of each support longitudinal beam extends backward and downward and is connected to the central channel assembly. The supporting longitudinal beams on both sides are made of extruded profiles, and from the cross-section of each supporting longitudinal beam, each supporting longitudinal beam has an outer portion and an inner portion with a material thickness greater than the outer portion, and the supporting crossbeam is connected to the inner portion.

[0006] Furthermore, the material thickness m of the inner portion and the material thickness n of the outer portion satisfy m ≥ 1.5n; and / or, The supporting crossbeam is made of extruded profile.

[0007] Furthermore, the supporting crossbeams are multiple beams spaced apart along the longitudinal direction of the vehicle; and / or, The supporting longitudinal beam is provided with a connecting groove, and the end of the supporting crossbeam is inserted into the connecting groove and fixedly connected to the supporting longitudinal beam.

[0008] Furthermore, the front bulkhead assembly includes a front bulkhead panel and a front bulkhead reinforcing beam located at the bottom of the front bulkhead panel; The front reinforcing beam is provided with a connecting plate, and the front ends of the supporting longitudinal beams on both sides are connected to the connecting plate.

[0009] Furthermore, the front bulkhead is provided with a steering booster mounting plate, and the steering booster mounting plate is provided with an outwardly protruding connecting arm; The support structure includes a first support bracket connected to the front end of one of the support longitudinal beams, with the top of the first support bracket connected to the connecting arm and the bottom of the first support bracket connected to the central channel assembly.

[0010] Furthermore, the support structure includes a second support bracket whose top is connected to the front end of the support longitudinal beam on the other side, and the bottom of the second support bracket is connected to the central channel assembly.

[0011] Furthermore, the middle of the supporting longitudinal beams on both sides has an upwardly bulging curved section, and longitudinal beam reinforcing plates are connected to the curved sections on both sides. The longitudinal beam reinforcing plates on each side extend along the length direction of the curved section on the same side.

[0012] Furthermore, a supporting crossbeam connects the two curved sections, and the reinforcing plates of the longitudinal beams on both sides are connected to the supporting crossbeam; and / or, The front end of the longitudinal beam reinforcing plate on one side extends forward by a predetermined distance compared to the front end of the longitudinal beam reinforcing plate on the other side.

[0013] Furthermore, reinforcing plates are provided at the connection points between the rear ends of the supporting longitudinal beams on both sides and the central channel assembly; and / or, The central channel assembly includes a central channel and central channel reinforcing beams connected to the top two sides of the central channel, with the rear ends of the supporting longitudinal beams on each side connected to the central channel reinforcing beam on the same side.

[0014] Compared with related technologies, this application has the following advantages: (1) The vehicle body structure described in this application, by setting a support structure including support longitudinal beams and support cross beams between the front bulkhead assembly and the central tunnel assembly, and by using extruded profiles for the support longitudinal beams, the support longitudinal beams have inner and outer portions with different material thicknesses, and the support cross beams are connected to the inner portion with larger material thickness. In the case of limited surrounding space, the support longitudinal beams, the front bulkhead assembly and the central tunnel assembly form a triangular structure. At the same time, by utilizing the unequal material thickness distribution of the support longitudinal beam cross section, through precise reinforcement of the support longitudinal beams themselves, and combined with the lateral reinforcement and connection of the support cross beams to form a ring frame structure, the overall rigidity of the support structure can be increased, and the strengthening support effect of the support structure between the front bulkhead assembly and the central tunnel assembly can be improved. This helps to improve the vehicle body front position's ability to cope with frontal collisions, and thus improves the overall vehicle safety performance.

[0015] (2) The thickness of the inner part is 1.5 times or more than 1.5 times that of the outer part. Based on the uneven thickness distribution of the longitudinal beam section, the inner part with larger thickness can be used to ensure the reinforcement effect on the longitudinal beam itself, which helps to increase the overall structural strength of the longitudinal beam.

[0016] Using extruded profiles for the support beams not only facilitates their fabrication and reduces manufacturing costs, but also ensures their structural strength and enhances the overall rigidity of the support structure.

[0017] (3) The support beams are multiple beams that are spaced apart along the front and rear direction of the vehicle. On the one hand, the lateral connection and reinforcement of multiple support beams at multiple positions can be used to ensure the structural stability of the main support structure composed of the side support longitudinal beams and the middle support beam, which can increase the overall rigidity of the support structure. On the other hand, the setting of multiple support beams can also form multiple ring reinforcement structures at the support structure, which can further increase the overall rigidity of the support structure and improve the reinforcement and support effect on the front assembly.

[0018] Connecting grooves are provided on the supporting longitudinal beams, allowing the ends of the supporting crossbeams to be inserted into the grooves and fixedly connected to the supporting longitudinal beams. This not only facilitates the connection between the supporting crossbeams and the supporting longitudinal beams by allowing the ends of the supporting crossbeams to be inserted into the grooves, thus improving the assembly effect of the supporting structure, but also increases the connection strength between the supporting crossbeams and the supporting longitudinal beams by inserting them into the grooves and then fixing them, which is beneficial to improving the structural stability of the supporting structure.

[0019] (4) The front bulkhead assembly includes a front bulkhead panel and a front bulkhead reinforcing beam at the bottom. By setting a connecting plate on the front bulkhead reinforcing beam, the front end of the supporting longitudinal beam is connected to the connecting plate. The front bulkhead reinforcing beam can be used to increase the structural strength of the front bulkhead position of the vehicle body and improve the collision response capability of the front bulkhead assembly. At the same time, the setting of the connecting plate also facilitates the connection between the front end of the supporting longitudinal beam and the front bulkhead assembly, and helps to ensure the reliability of the connection between the supporting longitudinal beam and the front bulkhead assembly.

[0020] (5) On the basis of the power steering mounting plate on the front bulkhead, the power steering mounting plate is further provided with an outwardly protruding connecting arm, and the support structure includes a first support bracket connected to the connecting arm, one side of the support longitudinal beam and the middle channel assembly respectively. The connecting support function of the first support bracket can increase the reliability of the connection between the support longitudinal beam on this side and the front bulkhead assembly and the middle channel assembly, and improve the front bulkhead mode, reduce the occurrence of partial resonance noise of the front bulkhead, help improve the setting effect of the support structure, and also help improve the overall vehicle quality.

[0021] (6) The support structure includes a second support bracket connected between the front end of the other side support longitudinal beam and the middle channel assembly. The connection and support function of the second support bracket can be used to increase the reliability of the connection between the support longitudinal beam on this side and the middle channel assembly. At the same time, it can cooperate with the first support bracket to form a ring structure between the front end of the two side support longitudinal beams and the middle channel assembly, which helps to improve the structural strength of the front end of the support structure and is conducive to better improving the support effect on the front assembly.

[0022] (7) A curved section with an upward bulge is designed in the middle of the supporting longitudinal beam, and a longitudinal beam reinforcing plate is connected to the curved section. This not only makes the downward tilt angle of the front part of the supporting longitudinal beam smaller, but also puts the whole in a higher position, which is convenient to use the front part of the supporting longitudinal beam as the installation base for the peripheral wiring harness and vehicle components, which is conducive to the arrangement of the peripheral wiring harness and vehicle components. At the same time, the longitudinal beam reinforcing plate can also be used to strengthen the curved section, which can prevent the supporting longitudinal beam from deforming and bending too early at the curved position when the vehicle is in a frontal collision, which would have an adverse effect on the strengthening and supporting effect of the supporting structure, and help to ensure the setting effect of the supporting structure.

[0023] (8) The curved sections on both sides of the longitudinal beam are connected by a crossbeam, and the reinforcing plates of the longitudinal beams on both sides are also connected to the crossbeam. The crossbeam can be used to further strengthen the curved parts on the longitudinal beam by utilizing the lateral connection and support between the curved sections on both sides. This can more effectively prevent the curved parts of the longitudinal beam from deforming and bending during a vehicle collision, and help to better ensure the setting effect of the support structure.

[0024] This design allows the front end of one longitudinal beam reinforcement plate to extend forward by a predetermined distance compared to the front end of the other longitudinal beam reinforcement plate. By utilizing the differentiated design of the two longitudinal beam reinforcement plates, precise reinforcement can be achieved on one side of the vehicle body, which can improve the vehicle body's ability to cope with frontal collisions, especially small overlap frontal collisions.

[0025] (9) A reinforcing plate is installed at the connection between the rear end of the support longitudinal beam and the middle channel assembly. The reinforcing plate can increase the structural strength and deformation resistance of the rear end of the support longitudinal beam, which helps to ensure the reliability of the connection between the support longitudinal beam and the middle channel assembly. Under the support of the middle channel assembly, the support longitudinal beam and even the entire support structure can be guaranteed to support the front assembly, which is conducive to improving the overall vehicle safety performance.

[0026] This design allows the center channel assembly to include the center channel and center channel reinforcing beams connected to both sides of the top of the center channel. Each supporting longitudinal beam is connected to the center channel reinforcing beam on the same side. On the one hand, the center channel reinforcing beams can be used to increase the structural strength of the center channel assembly itself, improve the support capacity of the center channel assembly for the supporting structure, and ensure the support effect of the supporting structure for the front assembly. On the other hand, the connection between the supporting longitudinal beams and the center channel reinforcing beams can be used to further ensure the connection strength between the supporting longitudinal beams and the center channel assembly, which helps to improve the safety performance of the whole vehicle.

[0027] Another object of this application is to provide a vehicle having the body structure described above.

[0028] The vehicle described in this application has the same advantages as the aforementioned body structure compared to related technologies, and will not be repeated here. Attached Figure Description

[0029] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the vehicle body structure described in the embodiments of this application; Figure 2 This is a schematic diagram of the vehicle body structure described in the embodiments of this application from another perspective; Figure 3 This is a schematic diagram of the front assembly described in the embodiments of this application; Figure 4 This is a schematic diagram of the structure of the middle channel assembly described in the embodiments of this application; Figure 5 This is a schematic diagram of the support structure and steering booster mounting plate described in the embodiments of this application; Figure 6 This is a schematic diagram of the supporting structure described in the embodiments of this application; Figure 7 for Figure 6 Cross-sectional view at position AA; Figure 8 This is a schematic diagram of the supporting longitudinal beam described in an embodiment of this application; Explanation of reference numerals in the attached figures: 1. Front bulkhead assembly; 2. Center tunnel assembly; 3. Support structure; 4. Front bulkhead connecting plate; 11. Front bulkhead; 12. Front bulkhead reinforcing beam; 13. Connecting plate; 21. Central passage; 22. Central passage reinforcing beam; 31. Supporting longitudinal beam; 32. Supporting transverse beam; 33. First support bracket; 34. Second support bracket; 111. Power steering mounting plate; 112. Connecting arm; 311. Connecting groove; 312. Longitudinal beam reinforcing plate; 313. Reinforcing plate; 31a. Outer portion; 31b. Inner portion; 31s. Bending section; m, the thickness of the inner part; n, the thickness of the outer part. Detailed Implementation

[0030] To make the technical solution and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0031] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0032] Furthermore, it should be noted that in the description of this application, if terms such as "upper," "lower," "inner," or "outer" appear, indicating orientation or positional relationship, these are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, if terms such as "first" or "second" appear, they are also used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] Furthermore, in the description of this application, unless otherwise expressly defined, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application in light of the specific circumstances.

[0034] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The present application will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0036] The first aspect of this application provides a vehicle body structure, which mainly consists of a support structure 3 between the central tunnel assembly 2 and the front bulkhead assembly 1 in the vehicle body, which can support and reinforce the front bulkhead assembly. Furthermore, through innovative design in the vehicle body structure, this embodiment can improve the ability of the front bulkhead position of the vehicle body to cope with frontal collisions, which is beneficial to the improvement of the overall vehicle safety performance.

[0037] In related technologies, as people pay more and more attention to vehicle collision safety, the collision response capability of the vehicle body structure has become one of the key areas of current research and development.

[0038] Currently, in order to improve the safety of vehicles in frontal collisions, some body designs include a reinforced structure between the front bulkhead assembly 1 and the central tunnel assembly 2 to support the front bulkhead assembly 1. This structure is designed to resist the intrusion of the front engine compartment structure into the passenger compartment during a frontal collision, thereby reducing the injury to the occupants.

[0039] However, although the existing reinforcement structure located between the front bulkhead assembly 1 and the central tunnel assembly 2 can play a certain role in strengthening and supporting, compared with the ever-increasing demands for vehicle safety, the existing reinforcement structure still has its own limited rigidity and strength, making it difficult to fully improve the collision response capability of the front bulkhead of the vehicle body, thus hindering the improvement of the overall vehicle safety performance.

[0040] In view of this, in order to overcome the shortcomings of the related technologies, the vehicle body structure of this embodiment combines... Figures 1 to 8 As shown, the overall design includes a front bulkhead assembly 1, a central channel assembly 2 connected to the front bulkhead assembly 1, and a support structure 3 disposed between the front bulkhead assembly 1 and the central channel assembly 2.

[0041] The support structure 3 includes support longitudinal beams 31 located on the left and right sides, and support crossbeams 32 connected between the support longitudinal beams 31 on both sides. The front end of each support longitudinal beam 31 is connected to the front bulkhead assembly 1, and the rear end of each support longitudinal beam 31 extends downward and backward and is connected to the central channel assembly 2.

[0042] Meanwhile, the two side support beams 31 are made of extruded profiles, and from the cross-section of each support beam 31, each support beam 31 has an outer part 31a and an inner part 31b with a material thickness greater than the outer part 31a. The support beam 32 is connected to the inner part 31b.

[0043] Therefore, as described above, by setting a support structure 3 including a support longitudinal beam 31 and a support transverse beam 32 between the front bulkhead assembly 1 and the central tunnel assembly 2, and by using extruded profiles for the support longitudinal beam 31, the support longitudinal beam 31 has inner and outer portions 31a with different material thicknesses, and the support transverse beam 32 is connected to the inner portion with the larger material thickness. In this embodiment, even with limited surrounding space, the support longitudinal beam 31, the front bulkhead assembly 1, and the central tunnel assembly 2 form a triangular structure. At the same time, by utilizing the unequal material thickness distribution of the support longitudinal beam 31 cross section, through precise reinforcement of the support longitudinal beam 31 itself, and combined with the lateral reinforcement and connection of the support transverse beam 32 to form a ring frame structure, the overall rigidity of the support structure 3 can be increased. This enhances the supporting role of the support structure 3 between the front bulkhead assembly 1 and the central tunnel assembly 2, which helps to improve the vehicle's front bulkhead's ability to cope with frontal collisions, thereby improving the overall vehicle safety performance.

[0044] Based on the above general introduction, it is worth noting that, in specific implementation, the support longitudinal beam 31 using extruded profiles can be made of aluminum alloy or magnesium alloy profiles. Considering factors such as material cost, it is preferable to use aluminum alloy profiles (such as 6082) for the support longitudinal beam 31.

[0045] Furthermore, the aforementioned supporting longitudinal beams 31, the front bulkhead assembly 1, and the central tunnel assembly 2 form a triangular structure. Specifically, with the front end of the supporting longitudinal beams 31 connected to the front bulkhead assembly 1 and the rear end extending downwards and connecting to the central tunnel assembly 2, from the left-right perspective of the vehicle, each supporting longitudinal beam 31 and its connected front bulkhead assembly 1 and central tunnel assembly 2 can form a triangular structure. Of course, this triangular structure is usually not a standard triangle shape, but rather resembles a triangle overall.

[0046] Furthermore, the aforementioned ring frame structure formed by connecting the support beams 32 refers to the fact that, based on the front end of each side support beam 31 being connected to the front bulkhead assembly 1, and the rear end extending downward and backward to connect with the central channel assembly 2, the support beams 32 connected between the two side support beams 31 can at least form a ring frame structure between the two side support beams 31, the front bulkhead assembly 1 and the support beams 32, as well as between the two side support beams 31, the central channel assembly 2 and the support beams 32.

[0047] By connecting the supporting beams 32 to form a ring frame structure, it can be understood that this embodiment can utilize the high strength of the ring frame structure to increase the rigidity of the supporting structure 3, as well as the body structure composed of the supporting structure 3, the front bulkhead assembly 1, and the central tunnel assembly 2, which helps to improve the safety of the vehicle during a collision.

[0048] In this embodiment, it should also be noted that, see still... Figure 7 As shown, given that the supporting longitudinal beam 31 is made of extruded profile, the aforementioned "material thickness" specifically refers to the thickness of the outer wall plate and the inner stiffening plate of the supporting longitudinal beam 31. For ease of description, for example, the material thickness of the inner part 31b and the outer part 31a of the supporting longitudinal beam 31 can be referred to as m and n, respectively.

[0049] At this point, continue combining Figure 7 As shown, in some exemplary embodiments, the thickness m of the inner portion 31b and the thickness n of the outer portion 31a may be set to satisfy m ≥ 1.5n.

[0050] In this way, the material thickness m of the inner part 31b is 1.5 times or more than 1.5 times that of the material thickness n of the outer part 31a. In this embodiment, based on the unequal material thickness distribution of the cross section of the supporting longitudinal beam 31, the inner part 31b with a larger material thickness can be used to ensure the reinforcement effect on the structure of the supporting longitudinal beam 31 itself, which helps to increase the overall structural strength of the supporting longitudinal beam 31.

[0051] In specific implementation, it is worth noting that, based on the ratio setting between the material thickness m of the inner part 31b and the material thickness n of the outer part 31a, for example, the material thickness m of the inner part 31b can be 1.5 times, 1.6 times, 1.8 times or 2 times the material thickness n of the outer part 31a.

[0052] Furthermore, the specific ratio between the material thickness m of the inner part 31b and the material thickness n of the outer part 31a, as well as the proportions of the inner part 31b and the outer part 31a on the cross-section of the supporting longitudinal beam 31, can all be determined through structural simulation and other methods according to specific design requirements. As long as the material thickness m of the inner part 31b and the material thickness n of the outer part 31a, as well as the proportions of the inner part 31b and the outer part 31a on the cross-section of the supporting longitudinal beam 31, can meet the strength requirements of the supporting longitudinal beam 31, it is acceptable.

[0053] In this embodiment, in some exemplary implementations, the aforementioned support beam 32 may also be made of extruded profile, for example.

[0054] This allows the support beam 32 to also be made of extruded profile, which not only facilitates the preparation of the support beam 32 and reduces the manufacturing cost of the support beam 32, but also obviously helps to ensure the structural strength of the support beam 32 itself, and helps to improve the overall rigidity of the support structure 3.

[0055] In specific implementation, preferably, the supporting beam 32 can also be made of aluminum alloy profile, and the cross-sectional shape of the supporting beam 32 can be conventional, such as a square or a rectangular shape.

[0056] In this embodiment, as follows... Figure 5 and Figure 6 As shown, in some exemplary embodiments, the support beams 32 may be configured as multiple beams spaced apart along the front-rear direction of the vehicle.

[0057] At this point, the support beams 32 are arranged in multiple intervals along the front and rear direction of the vehicle. It can be understood that, on the one hand, the support beams 32 can be used to ensure the structural stability of the main body of the support structure 3, which is composed of the two side support beams 31 and the middle support beam 32, by using the lateral connection and reinforcement of multiple support beams 32 at multiple positions, thereby increasing the overall rigidity of the support structure 3.

[0058] On the other hand, by using the arrangement of multiple support beams 32, it is also possible to form multiple ring-shaped reinforcing structures at the support structure 3 through the lateral connection of each support beam 32. In this way, the overall rigidity of the support structure 3 can be further increased by using the multiple ring-shaped structures, so as to improve the reinforcing and supporting effect on the front assembly 1.

[0059] In practical implementation, since the supporting beams 32 are multiple beams distributed at intervals, for example, there can be three supporting beams 32, and these three supporting beams 32 are respectively arranged close to the front end, middle part, and rear end of the supporting longitudinal beams 31 on both sides. Thus, by setting the supporting beams 32 close to the front end, middle part, and rear end of the supporting longitudinal beams 31 on both sides, this embodiment can obviously utilize the relatively balanced distribution of the supporting beams 32 to make the supporting structure 3 have good structural stability.

[0060] In this embodiment, in some exemplary implementations, the following continues to be combined Figure 7 and Figure 8 As shown, a connecting groove 311 can be provided on the supporting longitudinal beam 31, so that the end of the supporting cross beam 32 can be inserted into the connecting groove 311 and fixedly connected to the supporting longitudinal beam 31.

[0061] At this time, by setting a connecting groove 311 on the supporting longitudinal beam 31, the end of the supporting crossbeam 32 is inserted into the connecting groove 311 and fixedly connected to the supporting longitudinal beam 31. It can be understood that this embodiment can not only make it easier to connect the supporting crossbeam 32 and the supporting longitudinal beam 31 by using the insertion setting of the end of the supporting crossbeam 32 in the connecting groove 311, but also help to improve the assembly effect of the supporting structure 3.

[0062] At the same time, by inserting the support beam 32 into the support longitudinal beam 31 and then fixing it, this embodiment can obviously increase the connection strength between the support beam 32 and the support longitudinal beam 31, which is beneficial to improving the structural stability of the support structure 3.

[0063] In practical implementation, the aforementioned connecting groove 311 is provided on the inner portion 31b of the supporting longitudinal beam 31, and the shape of the connecting groove 311 matches the cross-sectional shape of the supporting transverse beam 32. In addition, after the end of the support beam 32 is inserted into the connecting groove 311, the support beam 32 and the support longitudinal beam 31 can be connected by welding, for example, by MIG (Melt Inert-gas Welding).

[0064] In this embodiment, in some exemplary implementations, it is still as follows Figures 1 to 3 As shown, the aforementioned front assembly 1 may include, for example, a front panel 11 and a front reinforcing beam 12 located at the bottom of the front panel 11, and a connecting plate 13 is also provided on the front reinforcing beam 12, and the front ends of the two side supporting longitudinal beams 31 are connected to the connecting plate 13.

[0065] In this way, the front bulkhead assembly 1 includes a front bulkhead panel 11 and a front bulkhead reinforcing beam 12 at the bottom. By setting a connecting plate 13 on the front bulkhead reinforcing beam 12 and connecting the front end of the supporting longitudinal beam 31 to the connecting plate 13, it can be understood that this embodiment can increase the structural strength of the front bulkhead position of the vehicle body by using the front bulkhead reinforcing beam 12, thereby improving the collision response capability of the front bulkhead assembly 1. At the same time, by using the aforementioned connecting plate 13, this embodiment facilitates the connection between the front end of the supporting longitudinal beam 31 and the front bulkhead assembly 1, and helps to ensure the reliability of the connection between the supporting longitudinal beam 31 and the front bulkhead assembly 1.

[0066] In specific implementation, similar to the conventional front bulkhead structure in existing vehicle bodies, the front bulkhead 11 and the bottom front bulkhead reinforcing beam 12 of this embodiment can be made of stamped steel sheet metal parts, and the two are also welded together to form the front bulkhead assembly 2.

[0067] In addition, as a preferred embodiment, the connecting plate 13 may be made of stamped steel sheet metal, and the connecting plate 13 may generally be arranged close to the upper edge of the front reinforcement beam 12. The connecting plate 13 and the front reinforcement beam 13, as well as the front end of each supporting longitudinal beam 31 and the connecting plate 13, may be connected by welding.

[0068] In this embodiment, please continue to refer to... Figure 3 and Figure 5 As shown, in some exemplary embodiments, the front bulkhead 11 may be provided with a power steering mounting plate 111 for mounting a power steering device, and a protruding connecting arm 112 is also provided on the power steering mounting plate 111.

[0069] Meanwhile, the support structure 3 of this embodiment further includes a first support bracket 33 connected to the front end of one of the support longitudinal beams 31. The top of the first support bracket 33 is connected to the connecting arm 112, and the bottom of the first support bracket 33 is connected to the central channel assembly 2.

[0070] Thus, based on the steering assist mounting plate 111 provided on the front bulkhead 11, a protruding connecting arm 112 is further provided on the steering assist mounting plate 111, and the support structure 3 includes a first support bracket 33 that is connected to the connecting arm 112, one side support longitudinal beam 31 and the central channel assembly 2 respectively. Obviously, in this embodiment, by utilizing the connecting and supporting function of the first support bracket 33, on the one hand, it can increase the reliability of the connection between the side support longitudinal beam 31 and the front bulkhead assembly 1 and the central channel assembly 2, and on the other hand, it can also improve the modal of the front bulkhead 11, reduce the occurrence of partial resonance noise of the front bulkhead 11, help improve the setting effect of the support structure 3, and also help improve the NVH (Noise, Vibration, Harshness) performance of the whole vehicle, thus improving the overall vehicle quality.

[0071] In practice, the power steering mounting plate 111 with the connecting arm 112 can also be made of stamped steel sheet metal and is fixed to the front bulkhead 11 by welding.

[0072] Meanwhile, since the first support bracket 33 is connected to the connecting arm 112 on the power steering mounting plate 111, the first support bracket 33 is also connected to the support longitudinal beam 31 near the driver's side. In specific implementations, the first support bracket 33 can be, for example, a stamped steel sheet metal part, and the top of the first support bracket 33 can be connected to the connecting arm 112 by a screw connection, the first support bracket 33 can be welded to the support longitudinal beam 31 on the same side, and the bottom of the first support bracket 33 can be connected to the center channel assembly 2 by welding or screwing.

[0073] Based on the aforementioned first support bracket 33, it is still composed of Figure 1 , Figure 2 and continue to combine Figure 5 and Figure 6 As shown, in some exemplary embodiments, the support structure 3 of this embodiment may also include a second support bracket 34 whose top is connected to the front end of the support longitudinal beam 31 on the other side, and the bottom of the second support bracket 34 is also connected to the central channel assembly 2.

[0074] Thus, by including a second support bracket 34 connecting the front end of the other side support longitudinal beam 31 and the middle channel assembly 2 in the support structure 3, it can be understood that this embodiment can increase the reliability of the connection between the support longitudinal beam 31 and the middle channel assembly 2 by utilizing the connecting support function of the second support bracket 34.

[0075] At the same time, this embodiment can also cooperate with the first support bracket 33 to form a ring structure between the front end of the two side support longitudinal beams 31 and the middle channel assembly 2, which helps to improve the structural strength of the front end of the support structure 3 and is conducive to better supporting the front assembly 1.

[0076] In specific implementation, the second support bracket 34 can be made of stamped steel sheet metal, and the top of the second support bracket 34 can be welded to the support longitudinal beam 31 on the same side. The bottom of the second support bracket 34 can be connected to the central channel assembly 2 by welding or screwing.

[0077] In this embodiment, please continue to refer to... Figure 5 , Figure 6 as well as Figure 8 As shown, in some exemplary embodiments, the middle of the supporting longitudinal beams 31 on both sides has an upwardly bulging curved section 31s, and a longitudinal beam reinforcing plate 312 is connected to the curved section 31s on both sides. The longitudinal beam reinforcing plate 312 on each side also extends along the length direction of the curved section 31s on the same side.

[0078] At this point, by designing upward-bulging curved sections 31s in the middle of each supporting longitudinal beam 31, and connecting and setting longitudinal beam reinforcing plates 312 on the curved sections 31s, it can be understood that this embodiment can not only utilize the upward-bulging curved sections 31s to make the downward tilt angle of the front of the supporting longitudinal beam 31 smaller, but also place it in a higher position, thereby facilitating the use of the front of the supporting longitudinal beam 31 as the mounting base for peripheral wiring harnesses and vehicle components, thus facilitating the arrangement of peripheral wiring harnesses and vehicle components.

[0079] Meanwhile, based on the setting of the bending section 31s, by further setting the longitudinal beam reinforcing plate 312, it is clear that this embodiment can also use the longitudinal beam reinforcing plate to strengthen the bending section 31s, which can avoid the support longitudinal beam 31 from deforming and bending too early at the bending position during a frontal collision of the vehicle, thus avoiding adverse effects on the strengthening and supporting effect of the support structure 3, and helping to ensure the setting effect of the support structure 3.

[0080] In specific implementation, it is worth noting that, for the front part of the support longitudinal beam 31 to serve as the mounting base for peripheral wiring harnesses and vehicle components, for example, some mounting holes can be provided on the outer part 31a of the support longitudinal beam 31, or some rivet nuts, rivet bolts, etc. can be provided on the outer part 31a for the installation and arrangement of wiring harness fixing brackets or vehicle components.

[0081] Furthermore, the curvature of the curved section 31s in the aforementioned supporting longitudinal beam 31 can be determined, for example, through structural simulation, as long as it meets the structural strength requirements for the supporting longitudinal beam 31 and the supporting structure 3 as a whole.

[0082] Meanwhile, the aforementioned longitudinal beam reinforcing plate 312 can preferably be made of stamped steel sheet metal. On the one hand, each longitudinal beam reinforcing plate 312 can generally be fixed to the supporting longitudinal beam 31 on the same side by welding. On the other hand, mounting points can also be provided on each longitudinal beam reinforcing plate 312 for the installation of the vehicle's sub-instrument panel, thereby improving the functionality of the support structure 3.

[0083] In this embodiment, based on the setting of the curved section 31s in the above-mentioned supporting longitudinal beam 31, and the longitudinal beam reinforcing plate 312 corresponding to the curved section 31s, in some exemplary embodiments, for example, a supporting crossbeam 32 can be connected between the two curved sections 31s, and the longitudinal beam reinforcing plates 312 on both sides are also connected to the supporting crossbeam 32.

[0084] Therefore, by connecting the curved sections 31s on both sides of the longitudinal beam 31 with a supporting crossbeam 32, and by connecting the reinforcing plates 312 on both sides of the longitudinal beam 31 with the supporting crossbeam 32, this embodiment can utilize the lateral connection and support function of the supporting crossbeam 32 between the curved sections 31s on both sides to further strengthen the structure of the curved parts on the longitudinal beam 31. This can more effectively prevent the curved parts of the longitudinal beam 31 from deforming and bending during a vehicle collision, and help to better ensure the setting effect of the supporting structure 3.

[0085] In this embodiment, combined with Figure 6 As shown, in some exemplary embodiments, for example, the front end of one longitudinal beam reinforcing plate 312 may extend forward by a predetermined distance L compared to the front end of the other longitudinal beam reinforcing plate 312.

[0086] At this time, by making the front end of one longitudinal beam reinforcing plate 312 extend forward by a predetermined distance L compared to the front end of the other longitudinal beam reinforcing plate 312, it can be understood that this embodiment can utilize the differentiated design of the two longitudinal beam reinforcing plates 312 to achieve precise reinforcement of the vehicle body on that side by extending the longitudinal beam reinforcing plate 312 forward by a predetermined distance L, thereby improving the vehicle body's collision response capability on that side in frontal collisions, especially small overlap frontal collisions.

[0087] In practice, the specific direction for which side of the longitudinal beam reinforcement plate 312 should extend forward can be determined based on vehicle design requirements, and is not limited here. Similarly, the aforementioned preset distance L can also be determined based on specific vehicle design requirements and through structural simulation, and is also not limited here.

[0088] In this embodiment, as follows... Figure 5 , Figure 6 and Figure 8 As shown, in some exemplary embodiments, reinforcement plates 313 may be provided at the locations where the rear ends of the two side support longitudinal beams 31 connect to the central channel assembly 2.

[0089] Thus, by setting a reinforcing plate 313 at the connection between the rear end of the supporting longitudinal beam 31 and the central channel assembly 2, it can be understood that this embodiment can use the reinforcing plate 313 to increase the structural strength and deformation resistance of the rear end of the supporting longitudinal beam 31, which helps to ensure the reliability of the connection between the supporting longitudinal beam 31 and the central channel assembly 2. Under the support of the central channel assembly 2, it can ensure the support capacity of the supporting longitudinal beam 31 and even the entire supporting structure 3 to the front assembly 1, thereby improving the overall vehicle safety performance.

[0090] In specific implementation, the aforementioned reinforcing plate 313 may be made of stamped steel sheet metal, and each reinforcing plate 313 may be fixed to the top of the rear end of the supporting longitudinal beam 31 on the same side by welding. As an example, when the supporting longitudinal beam 31 is connected to the central channel assembly 2, the two may be connected by a bolted structure, and the bolts in the bolted structure pass through the reinforcing plate 313 and the supporting longitudinal beam 31 before being fixed to the central channel assembly 2.

[0091] like Figure 1 , Figure 2 as well as Figure 4 As shown, in some exemplary embodiments of this embodiment, the aforementioned central channel assembly 2 specifically includes a central channel 21 and central channel reinforcing beams 22 connected to the top two sides of the central channel 21. The two sides of the central channel 21 are respectively connected to the front assembly 2 via front connecting plates 4, and the rear ends of the supporting longitudinal beams 31 on each side are specifically connected to the central channel reinforcing beam 22 on the same side.

[0092] At this point, the central channel assembly 2 includes a central channel 21 and central channel reinforcing beams 22 connected to the top two sides of the central channel 21, and each supporting longitudinal beam 31 is connected to the central channel reinforcing beam 22 on the same side. It can be understood that, on the one hand, the central channel reinforcing beams 22 can be used to increase the structural strength of the central channel assembly 2 itself, which can improve the support capacity of the central channel assembly 2 to the supporting structure 3, and help ensure the support effect of the supporting structure 3 on the front assembly 1.

[0093] On the other hand, by connecting the supporting longitudinal beam 31 and the central channel reinforcing beam 22, this embodiment can also utilize the connection between the supporting longitudinal beam 31 and the central channel assembly 2 to further ensure the connection strength between the supporting longitudinal beam 31 and the central channel assembly 2, which helps to improve the safety performance of the whole vehicle.

[0094] In specific implementation, it is worth noting that the aforementioned central channel 21 and central channel reinforcing beam 22 can generally also be made of stamped steel sheet metal parts, and are assembled by welding to form the central channel assembly 2. At the same time, the front connecting plates 4 located on both sides of the central channel 21 can also be made of stamped steel sheet metal parts, and are also connected to the central channel 21 and the front reinforcing beam 12 in the front assembly 1 by welding.

[0095] It is worth noting that, regarding the vehicle body structure of this embodiment, based on the above exemplary embodiments, in specific implementation, as a preferred embodiment, it is still composed of... Figures 1 to 8 As shown, it may include, for example, a front bulkhead assembly 1, a central channel assembly 2 connected to the front bulkhead assembly 1, and a support structure 3 disposed between the front bulkhead assembly 1 and the central channel assembly 2.

[0096] The support structure 3 includes support longitudinal beams 31 located on the left and right sides, and multiple support crossbeams 32 connecting the support longitudinal beams 31 on both sides. The front end of each support longitudinal beam 31 is connected to the front bulkhead assembly 1, and the rear end of each support longitudinal beam 31 extends downward and rearward, connecting to the central channel assembly 2. The support longitudinal beams 31 on both sides are made of extruded profiles, and from the cross-section of each support longitudinal beam 31, each support longitudinal beam 31 has an outer portion 31a and an inner portion 31b with a material thickness greater than the outer portion 31a. Each support crossbeam 32 is connected to the inner portion 31b.

[0097] In this design, the thickness m of the inner portion 31b of the supporting longitudinal beam 31 is 1.5 times the thickness n of the outer portion 31a. The supporting crossbeam 32 can also be made of extruded profile, and the supporting longitudinal beam 31 is provided with a connecting groove 311. The end of the supporting crossbeam 32 is embedded in the connecting groove 311 and fixedly connected to the supporting longitudinal beam 31. At the same time, reinforcing plates 313 are also provided at the positions where the rear ends of the supporting longitudinal beams 31 on both sides connect with the central channel assembly 2.

[0098] In addition, a power steering mounting plate 111 is provided on the front bulkhead assembly 1, and a protruding connecting arm 112 is also provided on the power steering mounting plate 111. The support structure 3 also includes a first support bracket 33 connected to the front end of one of the support longitudinal beams 31, and the top of the first support bracket 33 is connected to the connecting arm 112, and the bottom of the first support bracket 33 is connected to the center channel assembly 2.

[0099] In addition, the support structure 3 also includes a second support bracket 34 whose top is connected to the front end of the other side support longitudinal beam 31, and the bottom of the second support bracket 34 is also connected to the central channel assembly 2. At the same time, the middle of the support longitudinal beams 31 on both sides has an upwardly bulging curved section 31s, and a longitudinal beam reinforcing plate 312 is connected to the curved section 31s, and the front end of the longitudinal beam reinforcing plate 312 on one side also extends forward by a predetermined distance L compared to the front end of the longitudinal beam reinforcing plate 312 on the other side.

[0100] In the preferred embodiment of the above vehicle body structure, the specific configuration and arrangement of the front assembly 1, the central channel assembly 2, the support structure 3, etc. can still be referred to the descriptions in the above exemplary embodiments. Furthermore, in this preferred embodiment, the beneficial effects brought about by the design of the front assembly 1, the central channel assembly 2, and the support structure 3, etc., can also be referred to the descriptions in the above exemplary embodiments.

[0101] The vehicle body structure of this embodiment adopts the above design, which can increase the overall rigidity of the support structure 3 located between the front bulkhead assembly 1 and the central tunnel assembly 2, and enhance the supporting effect of the support structure 3 between the front bulkhead assembly 1 and the central tunnel assembly 2. This helps to improve the vehicle body front position's ability to cope with frontal collisions, and thus improves the overall vehicle safety performance.

[0102] An embodiment of the second aspect of this application provides a vehicle having the body structure described in the first aspect embodiment above.

[0103] The vehicle in this embodiment, by adopting the above-described body structure, can improve the ability of the front of the vehicle body to cope with a frontal collision, which is beneficial to improving the overall safety performance of the vehicle and has good practicality.

[0104] The above descriptions are merely some embodiments of this application and are not intended to limit this application. The technical features or structures in the foregoing different embodiments can be arbitrarily combined to form other specific technical solutions as needed. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of the claims of this application.

Claims

1. A vehicle body structure, characterized in that: It includes a front bulkhead assembly (1), a central channel assembly (2) connected to the front bulkhead assembly (1), and a support structure (3) disposed between the front bulkhead assembly (1) and the central channel assembly (2). The support structure (3) includes support longitudinal beams (31) on the left and right sides, and support crossbeams (32) connecting the support longitudinal beams (31) on both sides. The front end of each support longitudinal beam (31) is connected to the front enclosure assembly (1), and the rear end of each support longitudinal beam (31) extends backward and downward and is connected to the central channel assembly (2). The supporting longitudinal beams (31) on both sides are made of extruded profiles, and from the cross-section of each supporting longitudinal beam (31), each supporting longitudinal beam (31) has an outer portion (31a) and an inner portion (31b) with a material thickness greater than the outer portion (31a). The supporting crossbeam (32) is connected to the inner portion (31b).

2. The vehicle body structure according to claim 1, characterized in that: The material thickness m of the inner portion (31b) and the material thickness n of the outer portion (31a) satisfy m ≥ 1.5n; and / or, The supporting beam (32) is made of extruded profile.

3. The vehicle body structure according to claim 1, characterized in that: The supporting crossbeams (32) are multiple beams spaced apart along the front-rear direction of the vehicle; and / or, The supporting longitudinal beam (31) is provided with a connecting groove (311), and the end of the supporting cross beam (32) is inserted into the connecting groove (311) and fixedly connected to the supporting longitudinal beam (31).

4. The vehicle body structure according to claim 1, characterized in that: The front bulkhead assembly (1) includes a front bulkhead panel (11) and a front bulkhead reinforcing beam (12) located at the bottom of the front bulkhead panel (11). The front reinforcing beam (12) is provided with a connecting plate (13), and the front ends of the supporting longitudinal beams (31) on both sides are connected to the connecting plate (13).

5. The vehicle body structure according to claim 4, characterized in that: The front bulkhead (11) is provided with a steering booster mounting plate (111), and the steering booster mounting plate (111) is provided with an outwardly protruding connecting arm (112). The support structure (3) includes a first support bracket (33) connected to the front end of the support longitudinal beam (31) on one side, and the top of the first support bracket (33) is connected to the connecting arm (112), and the bottom of the first support bracket (33) is connected to the middle channel assembly (2).

6. The vehicle body structure according to claim 5, characterized in that: The support structure (3) includes a second support bracket (34) whose top is connected to the front end of the support longitudinal beam (31) on the other side, and the bottom of the second support bracket (34) is connected to the middle channel assembly (2).

7. The vehicle body structure according to claim 1, characterized in that: The middle of the supporting longitudinal beams (31) on both sides has an upward bulging curved section (31s), and the curved section (31s) on both sides is connected to a longitudinal beam reinforcing plate (312). The longitudinal beam reinforcing plate (312) on each side extends along the length direction of the curved section (31s) on the same side.

8. The vehicle body structure according to claim 7, characterized in that: The supporting crossbeam (32) connects the two curved sections (31s) on both sides, and the longitudinal beam reinforcing plates (312) on both sides are connected to the supporting crossbeam (32); and / or, The front end of one of the longitudinal beam reinforcing plates (312) extends forward by a predetermined distance (L) compared to the front end of the other longitudinal beam reinforcing plate (312).

9. The vehicle body structure according to any one of claims 1 to 8, characterized in that: Reinforcing plates (313) are provided at the connection points between the rear ends of the supporting longitudinal beams (31) on both sides and the central channel assembly (2); and / or, The central channel assembly (2) includes a central channel (21) and central channel reinforcing beams (22) connected to the top two sides of the central channel (21), with the rear ends of the supporting longitudinal beams (31) on each side connected to the central channel reinforcing beams (22) on the same side.

10. A vehicle, characterized in that: The vehicle has the body structure as described in any one of claims 1 to 9.

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