Vehicle body front wall structure and vehicle

Abstract

This application relates to the field of vehicle body technology and provides a front bulkhead structure and a vehicle. The front bulkhead structure of this application includes a front bulkhead panel, a lower windshield crossbeam connected to the top of the front bulkhead panel, and a lower front bulkhead crossbeam connected to the bottom of the front bulkhead panel, and a reinforcing structure is provided on the front bulkhead panel. The reinforcing structure is "n"-shaped and includes two vertical reinforcing plates arranged opposite each other on the left and right sides, and a transverse reinforcing plate connected between the tops of the two vertical reinforcing plates. The tops of the two vertical reinforcing plates and the transverse reinforcing plate are both connected to the lower windshield crossbeam, and the bottoms of the two vertical reinforcing plates are both connected to the lower front bulkhead crossbeam. This application can increase the structural strength and rigidity of the front bulkhead area, which can reduce the intrusion of front engine compartment components and collision barriers into the passenger compartment during a vehicle collision, thereby improving the vehicle's collision safety performance.

Description

Technical Field

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

[0002] In vehicles, the front of the vehicle body typically separates the passenger compartment from the engine compartment through a front bulkhead structure, and the main structure of the front bulkhead is the bulkhead panel. Currently, to increase the structural strength of the front bulkhead, a reinforcing plate is generally installed on the bulkhead panel. However, while this reinforcement method can increase the structural strength of the front bulkhead to some extent, it still has the limitation of only slightly improving the structural strength and rigidity of the front bulkhead, which is detrimental to improving the vehicle's collision safety performance. Utility Model Content

[0003] In view of this, this application aims to propose a front bulkhead structure for improving the overall vehicle collision safety performance.

[0004] To achieve the above objectives, the technical solution of this application is implemented as follows:

[0005] A vehicle body front bulkhead structure includes a front bulkhead panel, a front windshield lower crossbeam connected to the top of the front bulkhead panel, and a front bulkhead lower crossbeam connected to the bottom of the front bulkhead panel.

[0006] The front bulkhead is provided with a reinforcing structure, which is in the shape of an "n" and includes two vertical reinforcing plates arranged opposite each other on the left and right, and a horizontal reinforcing plate connected between the tops of the two vertical reinforcing plates.

[0007] The tops of the two vertical reinforcing plates and the horizontal reinforcing plate are both connected to the lower crossbeam of the front windshield, and the bottoms of the two vertical reinforcing plates are both connected to the lower crossbeam of the front bulkhead.

[0008] Furthermore, a vertical reinforcing cavity is formed between the two vertical reinforcing plates and the front bulkhead, and a horizontal reinforcing cavity is formed between the horizontal reinforcing plate and the front bulkhead.

[0009] Furthermore, the transverse reinforcing cavity is connected to the top of the two vertical reinforcing cavities.

[0010] Furthermore, the reinforcing structure is located on the side of the front bulkhead facing forward of the vehicle.

[0011] Furthermore, both ends of the lower crossbeam of the front windshield are connected to the A-pillars on the left and right sides, and both ends of the lower crossbeam of the front bulkhead are connected to the A-pillars on both sides through the longitudinal beam of the front engine compartment.

[0012] The lower crossbeam of the front windshield, the lower crossbeam of the front bulkhead, the reinforcing structure, and the A-pillars on both sides together form the front bulkhead frame structure.

[0013] Furthermore, the reinforcing structure is integrally molded.

[0014] Furthermore, a reinforcing member is provided inside the lower crossbeam of the front bulkhead;

[0015] The reinforcing member extends along the left-right direction of the vehicle and is connected to the longitudinal beams of the front engine compartment on both sides.

[0016] Furthermore, the reinforcing member is a tubular beam;

[0017] The reinforcing member is fixed inside the lower crossbeam of the front bulkhead by a first connecting bracket.

[0018] Furthermore, the reinforcing member is connected to the longitudinal beams of the front engine compartment on both sides via a second connecting bracket;

[0019] The second connecting bracket is connected to the lower crossbeam of the front bulkhead.

[0020] Compared with related technologies, this application has the following advantages:

[0021] (1) The front bulkhead structure of the vehicle body described in this application is provided with an "n"-shaped reinforcing structure on the front bulkhead, and the top of the two vertical reinforcing plates and the horizontal reinforcing plate in the reinforcing structure are connected to the lower crossbeam of the front windshield. At the same time, the bottom of the two vertical reinforcing plates are connected to the lower crossbeam of the front bulkhead. Thus, the front bulkhead mode can be improved by using the reinforcing structure, and the connection between the reinforcing structure and the upper lower crossbeam of the front windshield and the lower lower crossbeam of the front bulkhead can also increase the overall structural strength and rigidity of the front bulkhead. In the event of a vehicle collision, the intrusion of the front engine compartment components and collision barriers into the passenger compartment can be reduced by the obstructing effect of the reinforcing structure, thereby improving the collision safety performance of the vehicle.

[0022] (2) The two vertical reinforcing plates form a vertical reinforcing cavity between the front panel and the two vertical reinforcing plates, and the transverse reinforcing plate forms a transverse reinforcing cavity between the front panel. The structural strength of the cavity structure is high, which can increase the structural strength of the vertical and transverse reinforcing plates and improve the reinforcing effect of the reinforcing structure.

[0023] (3) The transverse reinforcing cavity is connected to the two vertical reinforcing cavities. On the one hand, this can simplify the structure of the reinforcing structure and facilitate its design and preparation. On the other hand, the connection between the transverse and vertical reinforcing cavities can facilitate the flow of the electrophoretic liquid at the reinforcing structure position during the car body electrophoresis, which helps to ensure the electrophoresis effect.

[0024] (4) Setting the reinforcement structure on the front side of the front bulkhead facilitates the arrangement of the reinforcement structure on the front bulkhead and facilitates the connection between the reinforcement structure and the lower crossbeam of the front windshield and the lower crossbeam of the front bulkhead. At the same time, it can also enable the reinforcement structure to bear the impact of the collision before the front bulkhead in the event of a frontal collision, and can also improve the vehicle's ability to cope with collisions.

[0025] (5) The front windshield lower crossbeam, front bulkhead lower crossbeam, reinforcing structure and A-pillars on both sides together form the front bulkhead frame structure. This not only increases the structural strength and rigidity of the front bulkhead of the vehicle body, improves the modality of the front bulkhead of the vehicle body, and improves the torsional rigidity of the front of the vehicle body, but also forms multiple interwoven collision force transmission paths in the front bulkhead of the vehicle body using the front bulkhead frame structure, which helps to improve the absorption and transmission dispersion of collision force.

[0026] (6) The integral molding of the reinforced structure facilitates the preparation of the reinforced structure, reduces its preparation cost, and compared with the component form, it is also conducive to increasing the overall structural strength of the reinforced structure and ensuring the reinforcement effect of the reinforced structure.

[0027] (7) By setting a reinforcing member at the lower crossbeam of the front bulkhead that is connected to the longitudinal beams of the front engine compartment on both sides, the structural strength and rigidity of the front bulkhead can be increased by the synergistic effect of the reinforcing member and the lower crossbeam of the front bulkhead. In the event of a frontal collision, the reinforcing member can also work with the lower crossbeam of the front bulkhead to prevent the components inside the front engine compartment from moving backward, reducing the compression of the passenger compartment and better protecting the occupants, which is conducive to further improving the collision safety of the vehicle.

[0028] (8) The reinforcing member is made of tubular beam, which not only takes advantage of the ease of fabrication of tubular beam to facilitate the fabrication of the reinforcing member and reduce the fabrication cost, but also takes advantage of the high structural strength of tubular beam to increase the structural strength of the reinforcing member, so that the reinforcing member can have a better reinforcing effect. The reinforcing member is fixed inside the lower crossbeam of the front bulkhead through the first connecting bracket, which facilitates the fixed arrangement of the reinforcing member inside the lower crossbeam of the front bulkhead, and also has the advantages of simple structure, easy design and implementation and low cost.

[0029] (9) The reinforcement is connected to the longitudinal beams of the front engine compartment on both sides via the second connecting bracket, which facilitates the connection between the reinforcement and the longitudinal beams of the front engine compartment on both sides. It also has the advantages of simple structure and easy implementation, and helps to ensure the stability of the connection between the reinforcement and the longitudinal beams of the front engine compartment. The second connecting bracket is connected to the lower crossbeam of the front bulkhead. While the second connecting bracket connects the reinforcement to the longitudinal beams of the front engine compartment, it also enables the second connecting bracket to connect the reinforcement to the lower crossbeam of the front bulkhead. This not only saves some of the first connecting bracket, which helps to reduce the weight of the vehicle body and material costs, but also enhances the connection strength between the lower crossbeam of the front bulkhead, the reinforcement, and the longitudinal beams of the front engine compartment, which can help improve the overall rigidity of the front of the vehicle body.

[0030] This application also proposes a vehicle having a front body structure as described above.

[0031] By providing the front body structure described above, the vehicle described in this application can increase the structural strength and rigidity of the front body, and reduce the intrusion of components in the front engine compartment and collision barriers into the passenger compartment during a vehicle collision, thereby improving the vehicle's collision safety performance. Attached Figure Description

[0032] 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:

[0033] Figure 1 This is a schematic diagram illustrating the arrangement of the front bulkhead structure of the vehicle body according to an embodiment of this application within the vehicle body;

[0034] Figure 2 This is a schematic diagram of the vehicle front bulkhead structure described in the embodiments of this application;

[0035] Figure 3 This is a schematic diagram of the front frame structure described in the embodiments of this application;

[0036] Figure 4 for Figure 2 A schematic diagram of the middle section structure;

[0037] Figure 5 for Figure 4 Cross-sectional view at position AA;

[0038] Figure 6 for Figure 4 Cross-sectional view of the middle BB position;

[0039] Figure 7 This is a schematic diagram of the reinforcing structure described in the embodiments of this application;

[0040] Figure 8 This is a schematic diagram of the reinforcing structure described in the embodiments of this application from another perspective;

[0041] Figure 9 This is a schematic diagram of the connecting protrusion described in an embodiment of this application;

[0042] Figure 10 This is a schematic diagram showing the reinforcement member described in the embodiment of this application being installed inside the lower crossbeam of the front bulkhead;

[0043] Figure 11 for Figure 10 Cross-sectional view at position CC;

[0044] Figure 12 This is a schematic diagram of the structure of the reinforcing member described in the embodiments of this application;

[0045] Figure 13 This is a schematic diagram of the structure of the first connecting bracket described in an embodiment of this application;

[0046] Figure 14 This is a schematic diagram of the structure of the second connecting bracket described in an embodiment of this application;

[0047] Figure 15 This is a schematic diagram showing the connection between the reinforcing member and the forward engine compartment longitudinal beam as described in the embodiments of this application;

[0048] Explanation of reference numerals in the attached figures:

[0049] 1. Front bulkhead; 2. Lower crossbeam of the front windshield; 3. Lower crossbeam of the front bulkhead; 4. Reinforcing structure; 5. Longitudinal beam of the front engine compartment; 6. A-pillar; 7. Sill beam; 8. Reinforcing component; 9. First connecting bracket; 10. Second connecting bracket;

[0050] 3a. Connecting protrusion; 301. Upper plate of reinforcing beam; 302. Lower plate of reinforcing beam; 401. Vertical reinforcing plate; 402. Horizontal reinforcing plate; 1001. First connecting flange; 1002. Second connecting flange;

[0051] Q: Vertically reinforced cavity; S: Laterally reinforced cavity. Detailed Implementation

[0052] 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.

[0053] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0054] 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.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] An embodiment of the first aspect of this application provides a front bulkhead structure for a vehicle body. Through innovative design of the front bulkhead structure, it can increase the structural strength and rigidity of the front bulkhead and reduce the intrusion of front engine compartment components into the passenger compartment during vehicle collisions, especially frontal collisions, thereby improving the vehicle's collision safety performance.

[0059] In related technologies, a front bulkhead structure, mainly composed of a front bulkhead panel, is generally provided at the front of the vehicle body. The front bulkhead structure not only separates the passenger compartment from the front engine compartment, but also plays a role in absorbing the impact of the collision and protecting the occupants in the passenger compartment when the vehicle is involved in a collision, especially a frontal collision.

[0060] Currently, the traditional methods to increase the structural strength of the front bulkhead are to increase the thickness of the bulkhead panel, or simply to attach reinforcing plates to the bulkhead panel. However, while these traditional methods of front bulkhead reinforcement can increase the structural strength of the front bulkhead to some extent, they still have limitations, such as limited structural reinforcement effect, making it difficult to fully improve the structural strength and stiffness of the front bulkhead, which is detrimental to improving vehicle collision safety performance.

[0061] In view of this, in order to overcome the shortcomings of related technologies, the front bulkhead structure of the vehicle body in this embodiment combines... Figures 1 to 3 As shown, the overall design includes a front bulkhead 1, a front windshield lower crossbeam 2 connected to the top of the front bulkhead 1, and a front bulkhead lower crossbeam 3 connected to the bottom of the front bulkhead 1.

[0062] The front bulkhead 1 is also equipped with a reinforcing structure 4, which is n-shaped. Structurally, the reinforcing structure 4 includes two vertical reinforcing plates 401 arranged opposite each other, and a horizontal reinforcing plate 402 connecting the tops of the two vertical reinforcing plates 401. Furthermore, the tops of the two vertical reinforcing plates 401 and the horizontal reinforcing plate 402 are connected to the lower crossbeam 2 of the front windshield, and the bottoms of the two vertical reinforcing plates 401 are connected to the lower crossbeam 3 of the front bulkhead.

[0063] Therefore, by setting an "n"-shaped reinforcing structure 4 on the front bulkhead 1, and connecting the top of the two vertical reinforcing plates 401 and the horizontal reinforcing plate 402 in the reinforcing structure 4 to the lower crossbeam 2 of the front windshield, while connecting the bottom of the two vertical reinforcing plates 401 to the lower crossbeam 3 of the front bulkhead, this embodiment can utilize the reinforcing structure 4 to enhance the modality of the front bulkhead, and utilize the connection between the reinforcing structure 4 and the upper lower crossbeam 2 of the front windshield and the lower lower crossbeam 3 of the front bulkhead to increase the overall structural strength and rigidity of the front bulkhead of the vehicle. At the same time, during a vehicle collision, the intrusion of components in the front engine compartment and collision barriers into the passenger compartment can be reduced through the obstructing effect of the reinforcing structure 4, thereby achieving the effect of improving the vehicle's collision safety performance.

[0064] Based on the above overall introduction, specifically, it is worth noting that the aforementioned reinforcing structure 4 is attached to one end face of the front bulkhead 1, and the reinforcing structure 4 is also connected to the front bulkhead 1. Moreover, since the transverse reinforcing plate 402 in the reinforcing structure 4 is arranged transversely (i.e., along the left-right direction of the whole vehicle), and it is connected between the vertical reinforcing plates 401 arranged vertically on both sides (i.e., along the up-down direction of the whole vehicle), the transverse reinforcing plate 402 is connected to the lower crossbeam 2 of the front windshield through its upper edge.

[0065] Furthermore, in practical implementation, the reinforcement structure 4 and the front bulkhead 1, the horizontal reinforcement plates 402 and each vertical reinforcement plate 401 in the reinforcement structure 4 and the lower crossbeam 2 of the front windshield, and the two vertical reinforcement plates 401 and the lower crossbeam 3 of the front bulkhead can all be connected together using conventional connection methods. Specifically, for example, the connection between them can be achieved by welding.

[0066] In this embodiment, we continue to combine Figures 4 to 6 As shown, in some exemplary embodiments, a vertical reinforcing cavity Q may be formed between the two vertical reinforcing plates 401 and the front bulkhead 1, and a horizontal reinforcing cavity S may also be formed between the horizontal reinforcing plate 402 and the front bulkhead 1.

[0067] At this time, a vertical reinforcing cavity Q is formed between the two vertical reinforcing plates 401 and the front bulkhead 1, and a horizontal reinforcing cavity S is formed between the horizontal reinforcing plate 402 and the front bulkhead 1. Obviously, the structural strength of the cavity structure can be increased by taking advantage of its high strength, thereby improving the reinforcing effect of the reinforcing structure 4.

[0068] In this embodiment, since both the vertical reinforcing plate 401 and the horizontal reinforcing plate 402 form a cavity structure with the front bulkhead 1, in some exemplary embodiments, the horizontal reinforcing cavity S may be further connected to the top of the two vertical reinforcing cavities Q.

[0069] In this way, by connecting the transverse reinforcing cavity S with the two vertical reinforcing cavities Q, on the one hand, compared with the case where the transverse reinforcing cavity S and the vertical reinforcing cavity Q need to be separated by designing a corresponding structure, it is beneficial to simplify the structure of the reinforcing structure 4 and the front bulkhead 1, and facilitate the design and fabrication of the reinforcing structure 4. On the other hand, it is obvious that the connection between the transverse reinforcing cavity S and the vertical reinforcing cavity Q can also facilitate the flow of electrophoretic liquid at the position of the reinforcing structure 4 during the car body electrophoresis, which helps to ensure the electrophoresis effect.

[0070] In this embodiment, in some exemplary implementations, it is still as follows Figures 1 to 4 As shown, the reinforcing structure 4 is preferably located on the side of the front bulkhead 1 facing the front of the vehicle. In this case, by placing the reinforcing structure 4 on the front side of the front bulkhead 1, it is convenient to arrange the reinforcing structure 4 on the front bulkhead 1, and it is also convenient to realize the connection between the reinforcing structure 4 and the lower crossbeam 2 of the windshield and the lower crossbeam 3 of the front bulkhead. At the same time, in the event of a frontal collision, the reinforcing structure 4 can absorb the impact of the collision before the front bulkhead 1, thereby improving the vehicle's ability to cope with collisions.

[0071] Continue to combine Figure 1 as well as Figure 3As shown in this embodiment, in some exemplary implementations, the two ends of the front windshield lower crossbeam 2 are specifically connected to the left and right A-pillars 6, and the two ends of the front bulkhead lower crossbeam 3 are specifically connected to the left and right A-pillars 6 through the front engine compartment longitudinal beam 5. At the same time, based on the connection between the front bulkhead lower crossbeam 3 and the A-pillars through the front engine compartment longitudinal beam 2, the front windshield lower crossbeam 2, the front bulkhead lower crossbeam 3, the reinforcing structure 4, and the left and right A-pillars 6 together form the front bulkhead frame structure.

[0072] Therefore, it can be understood that the front windshield lower crossbeam 2, front bulkhead lower crossbeam 3, reinforcing structure 4, and A-pillars 6 on both sides together form the front bulkhead frame structure. This not only increases the structural strength and rigidity of the front of the vehicle body, improves the modal characteristics of the front of the vehicle body, and enhances the torsional rigidity of the front of the vehicle body, but also forms multiple interconnected collision force transmission paths at the front of the vehicle body, which helps to improve the absorption and dispersion of collision forces.

[0073] It is worth noting that, as before Figure 3 As shown, the front frame structure, composed of the lower crossbeam 2 of the front windshield, the lower crossbeam 3 of the front bulkhead, the reinforcing structure 4, and the A-pillars 6 on both sides, forms a two-horizontal and four-vertical skeleton structure at the front of the vehicle. In the event of a collision, especially a frontal collision, the impact force is absorbed by this front frame structure and then transmitted along the A-pillars to the roof side beam (not shown in the figure) and to the sill beam 7, thus dispersing and mitigating the impact force and reducing the damage caused by the collision.

[0074] In this embodiment, in some exemplary implementations, the reinforcing structure 4 described above may be integrally molded.

[0075] At this point, by making the reinforcing structure 4 integrally molded, it is easier to prepare the reinforcing structure 4, reduce its preparation cost, and compared with the component form, it is also beneficial to increase the overall structural strength of the reinforcing structure 4, so as to ensure the reinforcing effect of the reinforcing structure 4.

[0076] In the specific implementation, please refer to [the relevant documentation]. Figure 7 and Figure 8 As shown, the reinforcing structure 4 can be integrally formed by stamping, specifically a stamped sheet metal part. However, besides being a stamped sheet metal structure, in other feasible embodiments, the reinforcing structure 4 can also be formed by methods such as integral casting. When the reinforcing structure 4 is formed by casting or other methods, the connection method between the reinforcing structure 4 and the front bulkhead 1, the lower crossbeam 2 of the front windshield, and the lower crossbeam 3 of the front bulkhead can be adapted accordingly.

[0077] In this embodiment, in some exemplary implementations, in addition to providing the aforementioned reinforcing structure 4 on one side of the front bulkhead 1, the following continues... Figure 10 and Figure 11 As shown, for example, a reinforcing member 8 may be further provided in the lower crossbeam 3 of the front bulkhead. The reinforcing member 8 extends in the left-right direction of the whole vehicle and is connected to the longitudinal beams 5 of the front engine compartment on both sides.

[0078] At this point, it is worth noting that the lower front bulkhead beam 3 is generally located on the front side of the front bulkhead panel 1, that is, on the side of the front bulkhead panel 1 facing the forward engine compartment. Furthermore, the lower front bulkhead beam 3 can generally be made of sheet metal, and the lower front bulkhead beam 3 is usually connected to the longitudinal beams 5 of the forward engine compartment on both sides by welding.

[0079] It is understandable that by setting a reinforcing member 8 connected to the longitudinal beams 5 of the front engine compartment on both sides in the lower crossbeam 3 of the front bulkhead, this embodiment can utilize the synergistic effect of the reinforcing member 8 and the lower crossbeam 3 of the front bulkhead to jointly increase the structural strength and rigidity of the front bulkhead of the vehicle. In the event of a frontal collision, the reinforcing member 8 can also work together with the lower crossbeam 3 of the front bulkhead to prevent the components inside the front engine compartment from moving backward, reducing the compression of the passenger compartment and better protecting the occupants, which is conducive to further improving the collision safety of the vehicle.

[0080] In this embodiment, the following continues... Figures 10 to 12 As shown, in some exemplary embodiments, the aforementioned reinforcing member 8 may be, for example, a tubular beam. Thus, by using a tubular beam for the reinforcing member 8, not only can the ease of fabrication of the tubular beam be utilized to facilitate the fabrication of the reinforcing member 8 and reduce its fabrication cost, but it can also utilize the high structural strength of the tubular beam to increase the structural strength of the reinforcing member 8, thereby enabling the reinforcing member 8 to have a better reinforcing effect.

[0081] It is worth noting that, based on the use of a tubular beam for reinforcement component 8, and further combined with... Figure 12 As shown, in some exemplary embodiments, preferably, for example, the cross-section of the reinforcing member 8 can be a closed structure. Thus, by further making the cross-section of the reinforcing member 8 a closed structure on the basis of using a tubular beam, the torsional and compressive resistance of the reinforcing member 8 can be further improved by utilizing the closed cross-section of the reinforcing member 8, which helps to increase the overall collision resistance of the reinforcing member 8.

[0082] Furthermore, while making the reinforcing member 8 a tube beam and specifically a closed section, it is worth noting that, in specific implementation, depending on the actual design needs, the cross-section of the reinforcing member 8 can be a circular closed structure, or in addition to a circular closed section, the reinforcing member 8 can also be an elliptical closed section, a square closed structure, a polygonal closed section, or other irregular closed sections, etc.

[0083] In this embodiment, it should also be noted that although the cross-section of the reinforcing member 8 should be a closed structure as described above, this does not mean that necessary process holes or other structures cannot be formed on the reinforcing member 8. However, in order to reduce the adverse effects on the structural performance of the reinforcing member 8, the number of process holes on the reinforcing member 8 should be minimized, and even, where circumstances permit, process holes or other structures should be avoided on the reinforcing member 8.

[0084] Furthermore, in specific implementations, the reinforcing member 8 in this embodiment is a tubular beam, which is an exemplary implementation; for example, it can also be a hot-expansion tube. In this way, by using a hot-expansion tube, it is also beneficial to achieve a lightweight reinforcing member 8 and to enable the reinforcing member 8 to have better structural strength.

[0085] In this embodiment, the following continues... Figures 10 to 12 As shown, in some exemplary embodiments, the reinforcing member 8 is disposed inside the lower front crossbeam 3. In specific implementations, for example, the reinforcing member 8 can be fixed inside the lower front crossbeam 3 by a first connecting bracket 9.

[0086] At this time, by fixing the reinforcing member 8 inside the lower crossbeam 3 of the front bulkhead via the first connecting bracket 9, it is convenient to fix the reinforcing member 8 inside the lower crossbeam 3 of the front bulkhead, and it obviously also has the advantages of simple structure, easy design and implementation and low cost.

[0087] The reinforcement 8 is disposed within the lower crossbeam 3 of the front bulkhead via a first connecting bracket 9. In some exemplary embodiments, preferably, for example, the first connecting bracket 9 may be configured as a plurality of brackets spaced apart along the extension direction of the reinforcement 8.

[0088] Therefore, by setting the first connecting bracket 9 to be arranged in multiple spaced intervals along the extension direction of the reinforcing member 8, the stability of the reinforcing member 8 installed in the lower crossbeam 3 of the front bulkhead can be guaranteed, so that the reinforcing member 8 and the lower crossbeam 3 of the front bulkhead can fully exert their synergistic effect to better increase the structural strength of the front of the vehicle body and improve the collision response capability during vehicle collision.

[0089] It should be noted that, in specific implementation, the number of the first connecting brackets 9 can be selected according to the cross-sectional dimensions and length of the reinforcing member 8. Furthermore, while ensuring the stability of the reinforcing member 8 within the lower crossbeam 3 of the front bulkhead and ensuring that the reinforcing member 8 does not detach from the lower crossbeam 3 during a vehicle collision and can withstand the impact of the collision together with the lower crossbeam 3, it is advisable to avoid designing too many first connecting brackets 3, which would be detrimental to the lightweighting of the vehicle body.

[0090] In this embodiment, it remains the same. Figure 11As shown, the reinforcing member 8 is disposed within the lower front crossbeam 3 via the first connecting bracket 9. In some exemplary embodiments, for example, an installation space may be formed between the first connecting bracket 9 and the lower front crossbeam 3, and the reinforcing member 8 may be specifically fixed within this installation space.

[0091] At this point, an installation space is formed between the first connecting bracket 9 and the lower front crossbeam 3, and the reinforcing member 8 is fixed within this installation space. This not only utilizes the constraint effect of the installation space on the reinforcing member 8 to ensure the stability of the reinforcing member 8's position within the lower front crossbeam 3, but also allows the first connecting bracket 9 and the lower front crossbeam 3 to form a ring structure. Furthermore, the high strength of the ring structure increases the reliability of the connection between the reinforcing member 8 and the lower front crossbeam 3, which helps to further improve the stability of the reinforcing member 8 within the lower front crossbeam 3 and enhance the synergistic effect between the reinforcing member 8 and the lower front crossbeam 3.

[0092] In this embodiment, in some exemplary implementations, the following are still combined Figure 10 and Figure 11 As shown, structurally, the lower front crossbeam 3 may include, for example, an upper reinforcing beam plate 301 and a lower reinforcing beam plate 302 connected below the upper reinforcing beam plate 301. The upper reinforcing beam plate 301, the lower reinforcing beam plate 302, and the front bulkhead 1 together form a cavity inside the lower front crossbeam 3, and the first connecting bracket 9 is specifically connected between the upper reinforcing beam plate 301 and the lower reinforcing beam plate 302.

[0093] At this point, it is understandable that the lower front beam 3 is mainly composed of an upper reinforcing beam plate 301 and a lower reinforcing beam plate 302. The upper reinforcing beam plate 301, the lower reinforcing beam plate 302, and the front bulkhead plate 1 together form the cavity inside the lower front beam 3. The first connecting bracket 9 is connected between the upper reinforcing beam plate 301 and the lower reinforcing beam plate 302. This makes the structure of the lower front beam 3 relatively simple and facilitates the formation of the cavity inside the lower front beam 3. It also facilitates the connection between the first connecting bracket 9 and the lower front beam 3.

[0094] In practical implementation, since the lower front crossbeam 3 is generally made of sheet metal, the aforementioned upper reinforcing beam plate 301 and lower reinforcing beam plate 302 can typically be formed by stamping. Furthermore, to increase the structural strength of the upper and lower reinforcing beam plates 301 and 302, reinforcing ribs can be added to both, or designs that enhance structural strength can be incorporated. For specific connections, welding is typically used to connect the upper and lower reinforcing beam plates 301 and 302, as well as to the front bulkhead plate 1.

[0095] In this embodiment, the following continues... Figure 13As shown, in some exemplary embodiments, the first connecting bracket 9 can be a strip-shaped plate structure. When the reinforcing member 8 is installed in the lower crossbeam 3 of the front bulkhead, the middle part of the first connecting bracket 9 with the strip-shaped plate structure can be fixedly connected to the reinforcing member 8. Then, one end of the first connecting bracket 9 can be fixedly connected to the upper plate 301 of the reinforcing beam, and the other end can be fixedly connected to the lower plate 302 of the reinforcing beam. This not only realizes the indirect connection between the reinforcing member 8 and the lower crossbeam 3 of the front bulkhead, but also forms the installation space S between the first connecting bracket 9 and the lower crossbeam 3 of the front bulkhead.

[0096] In this embodiment, please continue to refer to... Figures 10 to 12 and combined Figure 14 and Figure 15 As shown, in some exemplary embodiments, the reinforcement 8 can be connected to the longitudinal beams 5 of the front engine compartment on both sides, for example, via a second connecting bracket 10.

[0097] At this time, by connecting the reinforcing member 8 to the longitudinal beams 5 of the front engine compartment on both sides through the second connecting bracket 10, it is convenient to realize the connection between the reinforcing member 8 and the longitudinal beams 5 of the front engine compartment on both sides. It also has the advantages of simple structure and easy implementation. At the same time, it is also helpful to ensure the stability of the connection between the reinforcing member 8 and the longitudinal beams 5 of the front engine compartment.

[0098] In specific implementation, as an exemplary structural form of the second connecting bracket 10, it is still as follows: Figure 14 As shown, the second connecting bracket 10 can be, for example, a stamped sheet metal bracket structure, and the main structure of the second connecting bracket 10 can be a right-angled structure to facilitate connection with the reinforcing member 8. At the same time, a first connecting flange 1001 is also provided on one side edge of the second connecting bracket 10, which is used to connect with the front engine compartment longitudinal beam 5.

[0099] Furthermore, it is worth noting that, in addition to connecting the reinforcing member 8 to the forward engine compartment longitudinal beams 5 on both sides via the second connecting brackets 10 located at its two ends, other embodiments may also connect the reinforcing member 8 directly or indirectly to the forward engine compartment longitudinal beams 5 in other ways. Specifically, since the reinforcing member 8 is a tubular beam, for example, a flange structure can be formed at the end of the reinforcing member 8, thereby directly connecting the reinforcing member 8 to the forward engine compartment longitudinal beam 5 via the flange structure at that end. Alternatively, conventional connecting bosses or other structures can be provided on the forward engine compartment longitudinal beam 5 to achieve the connection between the reinforcing member 8 and the forward engine compartment longitudinal beam 5.

[0100] In this embodiment, the reinforcement 8 is still connected to the front cabin longitudinal beams 5 on both sides via the second connecting bracket 10. In some exemplary embodiments, the second connecting bracket 10 may be further connected to the lower front crossbeam 3.

[0101] In this way, by connecting the second connecting bracket 10 to the lower crossbeam 3 of the front bulkhead, the second connecting bracket 10 can connect the reinforcing member 8 to the front engine compartment longitudinal beam 5, and at the same time, it can also connect the reinforcing member 8 to the lower crossbeam 3 of the front bulkhead. This not only saves some of the first connecting bracket 9, helping to reduce vehicle weight and material costs, but also enhances the connection strength between the lower crossbeam 3 of the front bulkhead, the reinforcing member 8, and the front engine compartment longitudinal beam 5, thereby improving the rigidity of the front of the vehicle body.

[0102] It is worth noting that the connection between the second connecting bracket 10 and the lower front crossbeam 3 still refers to... Figure 10 As shown, for example, a second connecting flange 1002 can be provided on the second connecting bracket 10, and the second connecting bracket 10 can be connected to the lower front crossbeam 3 through the connection between the second connecting flange 1002 and the lower plate 302 of the reinforcing beam.

[0103] It is worth noting that, regarding the vehicle front bulkhead 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 15 As shown, it may include, for example, a front bulkhead 1, a front windshield lower crossbeam 2 connected to the top of the front bulkhead 1, and a front bulkhead lower crossbeam 3 connected to the bottom of the front bulkhead 1.

[0104] The front bulkhead 1 has an "n"-shaped reinforcing structure 4 on its front side. This reinforcing structure 4 includes two vertical reinforcing plates 401 arranged opposite each other, and a horizontal reinforcing plate 402 connecting the tops of the two vertical reinforcing plates 401. The tops of the two vertical reinforcing plates 401 and the horizontal reinforcing plate 402 are connected to the lower crossbeam 2 of the front windshield, while the bottoms of the two vertical reinforcing plates 401 are connected to the lower crossbeam 3 of the front bulkhead.

[0105] In this structure, the vertical reinforcing plate 401 and the horizontal reinforcing plate 402 in the reinforcing structure 4 form a cavity structure with the front bulkhead 1. Based on the setting of the reinforcing structure 4, the lower crossbeam 2 of the front windshield, the lower crossbeam 3 of the front bulkhead, the reinforcing structure 4, and the A-pillars 6 on both sides also jointly form the front bulkhead frame structure. Furthermore, a reinforcing member 8 is also provided in the lower crossbeam 3 of the front bulkhead. The reinforcing member 8 is a tubular beam and is fixed in the lower crossbeam 3 of the front bulkhead by the first connecting bracket 9. At the same time, the reinforcing member 8 is also connected to the longitudinal beams 5 of the front engine compartment on both sides by the second connecting bracket 6.

[0106] Furthermore, the reinforcing structure 4 is connected to the lower crossbeam 2 of the front windshield and the lower crossbeam 3 of the front bulkhead by welding. To facilitate welding, for example, the upper edge of the transverse reinforcing plate 402 and the tops of the two vertical reinforcing plates 2 can be formed with flanges. After the flanges overlap the lower crossbeam 2 of the front windshield, the flanges and the lower crossbeam 2 of the front windshield are then welded together. On the other hand, combined with... Figure 9 As shown, for example, a connecting protrusion 3a can be formed on the upper plate 301 of the reinforcing beam in the lower crossbeam 3 of the front bulkhead, and the upper connecting protrusion 3a can be used to overlap with the vertical reinforcing plate 401, and they can be welded together after overlapping.

[0107] In the preferred embodiment of the above-mentioned front bulkhead structure, the specific setting and arrangement of the reinforcing structure 4 and the reinforcing member 8 can still be referred to the description in the above-mentioned exemplary embodiments. Furthermore, in this preferred embodiment, the beneficial effects brought about by the design of the reinforcing structure 4 and the reinforcing member 8 can also be referred to the description in the above-mentioned exemplary embodiments.

[0108] The front bulkhead structure of this embodiment adopts the above design. An "n"-shaped reinforcing structure 4 is provided on the front bulkhead 1, and a reinforcing member 8 is provided in the lower crossbeam 3 of the front bulkhead. The reinforcing structure 4 also forms a frame structure in the front bulkhead position, which can increase the overall structural strength and rigidity of the front bulkhead position of the vehicle body. It can also reduce the intrusion of the front engine compartment components and collision barriers into the passenger compartment during vehicle collision, thereby improving the collision safety performance of the vehicle.

[0109] An embodiment of the second aspect of this application provides a vehicle having a front body structure as described in the first aspect embodiment above.

[0110] By providing the front body structure as described above, the vehicle in this embodiment can increase the structural strength and rigidity of the front body, thereby reducing the intrusion of components in the front engine compartment and collision barriers into the passenger compartment during a vehicle collision, which helps to improve the vehicle's collision safety performance.

[0111] 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 front bulkhead structure for a vehicle body, characterized in that: It includes a front bulkhead (1), a front windshield lower crossbeam (2) connected to the top of the front bulkhead (1), and a front bulkhead lower crossbeam (3) connected to the bottom of the front bulkhead (1). The front panel (1) is provided with a reinforcing structure (4), which is "n" shaped and includes two vertical reinforcing plates (401) arranged opposite to each other on the left and right, and a horizontal reinforcing plate (402) connected between the tops of the two vertical reinforcing plates (401). The tops of the two vertical reinforcing plates (401) and the horizontal reinforcing plate (402) are connected to the lower crossbeam (2) of the front windshield, and the bottoms of the two vertical reinforcing plates (401) are connected to the lower crossbeam (3) of the front bulkhead.

2. The vehicle front bulkhead structure according to claim 1, characterized in that: A vertical reinforcing cavity (Q) is formed between the two vertical reinforcing plates (401) and the front bulkhead (1), and a horizontal reinforcing cavity (S) is formed between the horizontal reinforcing plate (402) and the front bulkhead (1).

3. The vehicle front bulkhead structure according to claim 2, characterized in that: The transverse reinforcing cavity (S) is connected to the top of the two vertical reinforcing cavities (Q).

4. The vehicle front bulkhead structure according to claim 1, characterized in that: The reinforcing structure (4) is located on the side of the front bulkhead (1) facing the front of the vehicle.

5. The vehicle front bulkhead structure according to claim 4, characterized in that: The two ends of the front windshield lower crossbeam (2) are connected to the left and right A-pillars (6), and the two ends of the front fascia lower crossbeam (3) are connected to the A-pillars (6) on both sides through the front engine compartment longitudinal beam (5). The front windshield lower crossbeam (2), the front bulkhead lower crossbeam (3), the reinforcing structure (4), and the A-pillars (6) on both sides together form the front bulkhead frame structure.

6. The vehicle front bulkhead structure according to claim 1, characterized in that: The reinforcing structure (4) is integrally formed.

7. The vehicle front bulkhead structure according to any one of claims 1 to 6, characterized in that: The lower crossbeam (3) of the front enclosure is provided with a reinforcing member (8); The reinforcing member (8) extends along the left and right direction of the vehicle, and the reinforcing member (8) is connected to the longitudinal beams (5) of the front engine compartment on both sides respectively.

8. The vehicle front bulkhead structure according to claim 7, characterized in that: The reinforcing member (8) is a tubular beam; The reinforcing member (8) is fixed inside the lower crossbeam (3) of the front bulkhead by the first connecting bracket (9).

9. The vehicle front bulkhead structure according to claim 8, characterized in that: The reinforcing member (8) is connected to the longitudinal beams (5) of the front cabin on both sides by the second connecting bracket (10); The second connecting bracket (10) is connected to the lower crossbeam (3) of the front bulkhead.

10. A vehicle, characterized in that: The vehicle is provided with a front body structure as described in any one of claims 1 to 9.

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