Front structure of the vehicle body and vehicle

Abstract

This application relates to the field of vehicle body technology and provides a front vehicle body structure and a vehicle. The front vehicle body structure of this application includes A-pillars located on the left and right sides, and a roof beam connecting the tops of the two A-pillars. Each A-pillar has an inner A-pillar panel, the top of which is curved and extends to the bottom of the roof beam, with the portion of the inner A-pillar panel at the bottom of the roof beam overlapping the roof beam. This application can improve the collision force transmission capability between the A-pillar and the roof beam, thereby enhancing the collision force transmission effect of the vehicle body and improving vehicle collision safety.

Description

Technical Field

[0001] This application relates to the technical field of vehicle bodies, and particularly relates to a front body structure and a vehicle. Background Art

[0002] With the increasing perfection of various vehicle safety regulations, the safety of vehicles during collisions has become one of the key points in vehicle body R & D work. For current vehicles, especially taking models with a low and streamlined body and without a traditional roof structure as an example, since there is no roof structure in the body of such models, in a collision condition, especially in a top pressure condition where the roof is stressed, the collision force can only be transmitted along the front roof cross member and the A pillar to the lower part of the vehicle body. At this time, in the traditional design, the front roof cross member and the A pillar are generally only simply lapped together, and the synergistic effect between them in collision force transmission is limited, making it difficult to effectively transmit and disperse the collision force, thus being unfavorable for improving the collision safety of the vehicle. Utility Model Content

[0003] In view of this, this application aims to propose a front body structure to facilitate improving the collision safety of the vehicle.

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

[0005] A front body structure includes A pillars respectively arranged on the left and right sides, and a roof cross member connected between the tops of the A pillars on both sides;

[0006] The A pillar has an A pillar inner panel, the top of the A pillar inner panel is curved, and the top end of the A pillar inner panel extends to the bottom of the roof cross member, and the part of the A pillar inner panel located at the bottom of the roof cross member laps on the roof cross member.

[0007] Further, the A pillar further has an A pillar reinforcement plate and an A pillar outer panel that are sequentially connected to the outside of the A pillar inner panel;

[0008] A cavity is respectively formed between the A pillar inner panel and the A pillar reinforcement plate, and between the A pillar reinforcement plate and the A pillar outer panel.

[0009] Further, the A pillar further has a reinforcing tube;

[0010] The reinforcing tube is located in the upper A pillar section of the A pillar, and the top end of the reinforcing tube extends to the top end of the A pillar, and the bottom end of the reinforcing tube extends to the top of the lower A pillar section in the A pillar.

[0011] Further, the reinforcing tube is located between the A pillar inner panel and the A pillar reinforcement plate, and a first cavity located inside the reinforcing tube and a second cavity located outside the reinforcing tube are formed between the A pillar inner panel and the A pillar reinforcement plate.

[0012] Furthermore, a first reinforcing bracket is provided between the inner A-pillar panel and the A-pillar reinforcing plate;

[0013] The first reinforcing bracket is located at the top of the lower section of the A-pillar, and the bottom end of the reinforcing tube is fixed between the first reinforcing bracket and the inner plate of the A-pillar.

[0014] Furthermore, the first reinforcing bracket has a box-shaped structure and is fixedly connected to the inner plate of the A-pillar, forming a cavity between the first reinforcing bracket and the inner plate of the A-pillar.

[0015] Furthermore, a second reinforcing bracket located within the cavity is fixedly connected to the inner plate of the A-pillar;

[0016] A notch is formed on one side of the bottom end of the reinforcing tube, and a portion of the second reinforcing bracket is embedded in the notch.

[0017] Furthermore, the top cover beam includes an inner beam plate and an outer beam plate that are fastened together;

[0018] The portion of the inner panel of the A-pillar located at the bottom of the top cover beam overlaps the inner panel of the beam, and cavities are formed between the inner panel of the beam and the outer panel of the beam, as well as between the inner panel of the beam and the inner panel of the A-pillar that overlaps with it.

[0019] Furthermore, the front and / or rear edges of the inner plate of the beam are provided with recesses arranged at intervals, and the recesses are multiple recesses arranged at intervals along the length direction of the inner plate of the beam.

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

[0021] (1) The front structure of the vehicle body described in this application is such that the top of the inner A-pillar panel is curved and the top of the inner A-pillar panel extends to the bottom of the roof beam, and the part of the inner A-pillar panel at the bottom of the roof beam overlaps the roof beam. Compared with the traditional design where the top of the inner A-pillar panel terminates at the top of the A-pillar, the design of the inner A-pillar panel extending directly to the bottom of the roof beam and integrating with the roof beam eliminates the weak connection area between the A-pillar and the roof beam, avoids a sudden drop in stiffness at the connection between the two, increases the permeability of the force transmission channel formed between the roof beam and the A-pillar, improves the collision force transmission capability between the A-pillar and the roof beam, and enhances the collision force transmission effect of the vehicle body during a collision, which is conducive to improving the collision safety of the vehicle.

[0022] (2) The A-pillar is equipped with an A-pillar reinforcing plate and an A-pillar outer plate, and the A-pillar inner plate and the A-pillar reinforcing plate, as well as the A-pillar reinforcing plate and the A-pillar outer plate, respectively form cavities. The three-layer plate design of the A-pillar and the cavity structure formed in the A-pillar can be used to ensure the structural strength and rigidity of the A-pillar itself. This not only improves the A-pillar's pressure-bearing capacity when the vehicle is in a collision, especially when a top-pressure condition occurs, but also increases the A-pillar's ability to transmit collision force, which helps to reduce the collision deformation of the front of the vehicle body and is also conducive to the effective dispersion of collision force.

[0023] (3) By setting a reinforcing tube in the upper section of the A-pillar, with the top end of the reinforcing tube extending to the top of the A-pillar and the bottom end of the reinforcing tube extending to the top of the lower section of the A-pillar, the structural strength of the upper section of the A-pillar can be further increased by setting the reinforcing tube, thereby increasing the impact force transmission capability. On the other hand, the connection between the upper and lower sections of the A-pillar can be used to reduce the impact of the corner position formed between the upper and lower sections of the A-pillar on the overall impact force transmission capability of the A-pillar, thus helping to ensure the impact force transmission and dispersion effect of the A-pillar.

[0024] (4) The reinforcing tube is located between the inner plate of the A-pillar and the reinforcing plate of the A-pillar, which can make full use of the cross-sectional design of the inner plate of the A-pillar and facilitate the arrangement of the reinforcing tube in the A-pillar. By setting the reinforcing tube, a first cavity is formed between the inner plate of the A-pillar and the reinforcing plate of the A-pillar, and a second cavity is formed outside the reinforcing tube. A three-cavity structure can also be further formed inside the upper section of the A-pillar, which can better increase the rigidity of the upper section of the A-pillar and improve the compressive strength and impact force transmission capacity of the A-pillar.

[0025] (5) A first reinforcing bracket is set between the inner plate of the A-pillar and the reinforcing plate of the A-pillar, so that the first reinforcing bracket is located at the top of the lower section of the A-pillar, and the bottom end of the reinforcing tube is also fixed between the first reinforcing bracket and the inner plate of the A-pillar. This not only increases the structural strength of the corner formed between the upper and lower sections of the A-pillar by the first reinforcing bracket, but also increases the A-pillar's resistance to deformation during vehicle collisions, preventing the A-pillar from bending or collapsing prematurely at the corner. At the same time, the first reinforcing bracket can also improve the transmission effect of the collision force from the reinforcing tube to the lower section of the A-pillar by connecting the reinforcing tube and the lower section of the A-pillar structure, avoiding the interruption of transmission, so as to better ensure the overall collision force transmission and dispersion capability of the A-pillar.

[0026] (6) The first reinforcing bracket adopts a box-shaped structure, and the first reinforcing bracket and the inner plate of the A-pillar form a cavity. The box-shaped structure and the cavity structure have high strength, which can be used to ensure the structural strength of the first reinforcing bracket itself and the reinforcement effect of the first reinforcing bracket on the overall structure of the A-pillar.

[0027] (7) By setting a second reinforcing bracket on the inner panel of the A-pillar and embedding part of the second reinforcing bracket into the notch at the bottom of the reinforcing tube, the interlocking action between the second reinforcing bracket and the bottom of the reinforcing tube can provide good support for the reinforcing tube under the vehicle top pressure condition, and enable the lower section of the A-pillar to better bear the collision force transmitted by the reinforcing tube, which helps to improve the stability of the overall structure of the A-pillar and ensure the effect of transmitting the collision force to the lower section of the A-pillar.

[0028] (8) The top cover beam includes an inner beam plate and an outer beam plate that are fastened together. The double-layer plate structure can be used to ensure the structural strength of the top cover beam itself. The inner beam plate and the outer beam plate, as well as the inner beam plate and the overlapping A-column inner plate, can form cavities. The double cavity structure formed by the overlapping area of ​​the top cover beam and the A-column inner plate can also be used to increase the rigidity of the connection between the top cover beam and the A-column. This allows the collision force between the top cover beam and the A-column to be transmitted efficiently and with low loss, which is beneficial to further ensure the transmission effect of the collision force between the top cover beam and the A-column.

[0029] (9) By setting recesses at intervals along the edge of the inner plate of the crossbeam, and the recesses being multiple recesses at intervals along the length of the inner plate of the crossbeam, the edge of the inner plate of the crossbeam can be corrugated, which can significantly increase the moment of inertia of the crossbeam inner plate. This can greatly improve the bending stiffness of the inner plate of the crossbeam itself and the overall crossbeam of the roof with a small weight cost, allowing the roof crossbeam to better transmit loads, especially lateral and torsional loads. It can also increase the ability of the roof crossbeam to resist bending deformation, so that the roof crossbeam and the A-pillars on both sides form a frame structure with good rigidity, which helps to improve the overall structural performance of the roof crossbeam and is beneficial to improving the collision safety of the front of the vehicle.

[0030] Another object of this application is to provide a vehicle having a front body structure as described above.

[0031] The vehicle described in this application has the same beneficial effects as the aforementioned front body structure compared to the prior art, and will not be repeated here. 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 of the front structure of the vehicle body as described in the embodiments of this application;

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

[0035] Figure 3 This is a schematic diagram of the structure of column A as described in the embodiments of this application;

[0036] Figure 4 This is a schematic diagram of the A-pillar from another perspective as described in the embodiments of this application;

[0037] Figure 5 This is a schematic diagram of the structure of the inner A-pillar panel described in an embodiment of this application;

[0038] Figure 6 This is a schematic diagram showing the installation of the A-pillar reinforcement plate on the outer panel of the A-pillar according to an embodiment of this application;

[0039] Figure 7 This is a schematic diagram of the structure of the A-pillar outer panel described in an embodiment of this application;

[0040] Figure 8 This is a schematic diagram of the A-pillar reinforcing plate described in an embodiment of this application;

[0041] Figure 9 This is a schematic diagram illustrating the arrangement of the reinforcing tube according to an embodiment of this application;

[0042] Figure 10 This is a schematic diagram of the structure of the reinforcing tube described in the embodiment of this application;

[0043] Figure 11 for Figure 1 Cross-sectional view at position AA;

[0044] Figure 12 This is a schematic diagram of the structure of the first reinforcing bracket described in the embodiment of this application;

[0045] Figure 13 for Figure 9 Cross-sectional view at position CC;

[0046] Figure 14 This is a schematic diagram illustrating the arrangement of the second reinforcing bracket according to an embodiment of this application;

[0047] Figure 15 for Figure 14 A magnified view of a section at point D;

[0048] Figure 16 This is a schematic diagram of the structure of the second reinforcing bracket described in the embodiments of this application;

[0049] Figure 17 This is a schematic diagram of the structure of the top cover beam described in the embodiment of this application;

[0050] Figure 18 This is a schematic diagram of the top cover beam described in an embodiment of this application from another perspective;

[0051] Figure 19 for Figure 2 Cross-sectional view of the middle BB position;

[0052] Figure 20 This is a schematic diagram of the structure of the inner plate of the beam described in the embodiment of this application;

[0053] Figure 21 for Figure 20 A magnified view of a section at point E in the middle;

[0054] Explanation of reference numerals in the attached figures:

[0055] 1. A-pillar; 1a. Upper section of A-pillar; 1b. Lower section of A-pillar; 2. Top cover crossbeam;

[0056] 101. Inner panel of A-pillar; 101a. Overlapping part; 102. Outer panel of A-pillar; 103. Reinforcing plate of A-pillar; 104. Reinforcing tube; 104a. Notch; 105. First reinforcing bracket; 106. Second reinforcing bracket; 201. Outer panel of crossbeam; 202. Inner panel of crossbeam; 202a. Recess;

[0057] M, first cavity; N, second cavity; S, cavity shape. Detailed Implementation

[0058] 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.

[0059] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0060] 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.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] An embodiment of the first aspect of this application provides a front body structure that, by increasing the synergistic effect between the roof crossbeam 2 at the front of the body and the A-pillars 1 on the left and right sides, and by strengthening the structure of the A-pillars 1 and the roof crossbeam 2, can improve the collision force transmission capability between the A-pillars 1 and the roof crossbeam when the vehicle is involved in a collision, especially when a top-pressure condition occurs, thereby improving the collision force transmission effect of the vehicle body and thus contributing to the improvement of vehicle collision safety.

[0065] In related technologies, when a vehicle is in a collision, especially under roof-crushing conditions, the collision force borne by the roof is mainly transmitted along the roof crossbeam 2, the roof side beam, and the body frame structure such as the A-pillar 1, B-pillar, and C-pillar.

[0066] For vehicles with a low, streamlined body and no traditional roof structure, the lack of a roof means that in a collision, especially under roof-pressure conditions, the impact force can only be transmitted along the front crossbeam of the roof and the A-pillar 1 to the lower part of the vehicle. In this case, because the front crossbeam of the roof and the A-pillar 1 are typically only simply connected in traditional designs, their synergistic effect in transmitting impact force is limited, making it difficult to effectively distribute and disperse the impact force, thus adversely affecting the vehicle's collision safety.

[0067] Currently, for vehicles with low-slung, streamlined bodies and no traditional roof structure, to improve collision safety under roof-compression conditions, where there is no roof side beam or force transmission channels such as B-pillars and C-pillars, multiple reinforcing plates are typically welded into the A-pillar 1 and the front crossbeam of the roof. This strengthens the A-pillar 1 and the front crossbeam of the roof, increasing their compressive strength and force transmission capacity. However, adding multiple reinforcing plates is detrimental to the lightweight design of the vehicle body, and the welding of these plates can easily lead to stress concentration, making them prone to breakage during a collision. Therefore, their effect on improving vehicle collision safety is limited.

[0068] In view of this, in order to overcome the shortcomings of related technologies, the front structure of the vehicle body in this embodiment combines... Figures 1 to 21 As shown, the overall design includes A-pillars 1 located on the left and right sides, and a top cover beam 2 connecting the tops of the two A-pillars 1.

[0069] The A-pillar has an inner A-pillar panel 101, the top of which is curved and extends to the bottom of the roof beam 2. The portion of the inner A-pillar panel 101 located at the bottom of the roof beam 2 also overlaps the roof beam 2.

[0070] Therefore, by bending the top of the A-pillar inner panel 101 and extending its top end to the bottom of the roof crossbeam, with the portion of the A-pillar inner panel 101 at the bottom of the roof crossbeam 2 overlapping the roof crossbeam 2, compared to the traditional design where the top of the A-pillar inner panel 101 terminates at the top of the A-pillar 1, this embodiment utilizes the design where the top of the A-pillar inner panel 101 extends directly to the bottom of the roof crossbeam 2 and is integrated with the roof crossbeam 2. This eliminates the weak connection area between the A-pillar 1 and the roof crossbeam 2, avoids a sudden drop in stiffness at the connection point, increases the permeability of the force transmission channel formed between the roof crossbeam 2 and the A-pillar 1, and improves the collision force transmission capability between the A-pillar 1 and the roof crossbeam 2. This, in turn, enhances the collision force transmission effect of the vehicle body during a collision, thereby improving vehicle collision safety.

[0071] Based on the above general introduction, it is worth noting that the preferred front structure of the vehicle body in this embodiment is, in particular, the relevant structure in high-performance vehicles with a low and streamlined body and no traditional roof structure, so as to improve the safety of such vehicles in vehicle collisions, especially under roof crush conditions, through innovative design of the A-pillar 1 and roof crossbeam 2 structure at the front of the vehicle body.

[0072] However, in addition to being applicable to high-performance vehicles with low-profile, streamlined bodies and no traditional roof structure, the front body structure of this embodiment can also be used in traditional vehicles with roof structures. There are no restrictions on this, as long as it is suitable for setting up the front body structure of this embodiment.

[0073] Furthermore, it should be noted that, given that the aforementioned roof beam 2 is connected between the left and right A-pillars 1, from the perspective of the whole vehicle, the roof beam 2 in this embodiment is specifically the front roof beam at the front end of the vehicle body, and the front side of the roof beam 2 is generally where the windshield is installed.

[0074] In this embodiment, it is still by Figure 1 and Figure 2 and continue to combine Figures 3 to 8 As shown, in some exemplary embodiments, the A-pillar 1 further includes an A-pillar reinforcing plate 103 and an A-pillar outer plate 102 sequentially connected to the outside of the inner A-pillar plate 101, and further combined with... Figure 11 As shown, cavities are also formed between the inner A-pillar panel 101 and the A-pillar reinforcing plate 103, and between the A-pillar reinforcing plate 103 and the outer A-pillar panel 102.

[0075] At this point, the A-pillar 1 is equipped with an A-pillar reinforcing plate 103 and an A-pillar outer plate 102, and cavities are formed between the A-pillar inner plate 101 and the A-pillar reinforcing plate 103, and between the A-pillar reinforcing plate 103 and the A-pillar outer plate 102. It can be understood that by utilizing the three-layer plate design of the A-pillar 1 and the cavity structure formed inside the A-pillar 1, the structural strength and rigidity of the A-pillar 1 itself can be guaranteed. Thus, not only can the pressure-bearing capacity of the A-pillar 1 be improved when the vehicle is in a collision, especially when a top-pressure condition occurs, but the ability of the A-pillar 1 to transmit collision force can also be increased, which helps to reduce the collision deformation of the front of the vehicle body and is also conducive to the effective dispersion of collision force.

[0076] In specific implementation, please refer to Figure 5 As shown, in a specific implementation, the A-pillar inner panel 101 can be made of stamped sheet metal. For ease of description, the portion of the A-pillar inner panel 101 that extends from the top to the bottom of the roof beam 2 and overlaps with the roof beam 2 can be referred to as the overlapping portion 101a. This overlapping portion 101a is integrally formed with the entire A-pillar inner panel 101, and the degree of curvature of the overlapping portion 101a relative to other parts of the A-pillar inner panel 101, as well as the width of the overlapping portion 101a itself, can be designed according to the relative position and connection between the A-pillar 1 and the roof beam 2 in the vehicle body.

[0077] See also Figures 6 to 8As shown, in specific implementation, the A-pillar outer panel 102 and the A-pillar reinforcing plate 103 can also be made of stamped sheet metal. The A-pillar reinforcing plate 103 can, for example, partially (mainly at the two side edges) abut against the A-pillar outer panel 102 and be welded and fixed together with the A-pillar outer panel 102. At the same time, the A-pillar inner panel 101 is generally also connected to the A-pillar reinforcing plate 103 and the A-pillar outer panel 102 mainly through its two side edges.

[0078] In addition, it should be noted that the shape and size specifications of the aforementioned A-pillar inner panel 101, A-pillar outer panel 102 and A-pillar reinforcing plate 103 can be set according to the specific design requirements of the vehicle body, as long as the three can be combined to form a complete A-pillar 1 and meet the application requirements of A-pillar 1.

[0079] In this embodiment, in some exemplary implementations, a reinforcing tube 104 may be provided in the A-pillar 1, specifically located in the upper section 1a of the A-pillar 1, with the top end of the reinforcing tube 104 extending to the top end of the A-pillar 1 and the bottom end of the reinforcing tube 104 extending to the top end of the lower section 1b of the A-pillar 1.

[0080] At this point, it is understandable that by setting a reinforcing tube 104 in the upper section 1a of the A-pillar, with the top end of the reinforcing tube 104 extending to the top end of the A-pillar 1 and the bottom end of the reinforcing tube 104 extending to the top end of the lower section 1b of the A-pillar, the structural strength of the upper section 1a of the A-pillar can be further increased by setting the reinforcing tube 104, thereby increasing the ability to transmit collision force.

[0081] On the other hand, since the bottom end of the reinforcing tube 104 extends to the top of the lower section 1b of the A-pillar, it can obviously also utilize the connecting effect of the reinforcing tube 104 between the upper section 1a and the lower section 1b of the A-pillar to reduce the impact of the corner position formed between the upper and lower sections of the A-pillar (which belongs to the easily bendable area of ​​the A-pillar) on the overall collision force transmission capability of the A-pillar, thus helping to ensure the collision force transmission and dispersion effect of the A-pillar.

[0082] In specific implementation, the aforementioned reinforcing tube 104 can be made of high-strength steel (such as 22MnB5 of 1500MPa grade), and the cross-section of the reinforcing tube 104 is preferably designed to be elliptical. At the same time, the cross-section of the reinforcing tube 104 at each position can also vary depending on its position in column A 1, so that the reinforcing tube 104 as a whole is a variable cross-section tube.

[0083] In addition, continue as Figures 9 to 11As shown, in some exemplary embodiments, the aforementioned reinforcing tube 104 may be located, for example, between the inner A-pillar panel 101 and the A-pillar reinforcing plate 103, thereby forming a first cavity N within the reinforcing tube 104 and a second cavity M outside the reinforcing tube 104 between the inner A-pillar panel 101 and the A-pillar reinforcing plate 103.

[0084] It is understandable that by placing the reinforcing tube 104 between the inner A-pillar panel 101 and the A-pillar reinforcing plate 103, it can make full use of the cross-sectional design of the inner A-pillar panel 101, which is close to the inner side of the vehicle body, and provide sufficient space for the reinforcing tube 104 to be arranged in the A-pillar 1.

[0085] At the same time, the reinforced tube 104 can form a first cavity N inside the reinforced tube 104 and a second cavity M outside the reinforced tube 104 between the inner plate 101 and the reinforced plate 103 of the A-pillar. Obviously, it can also further form a three-cavity structure inside the upper section 1a of the A-pillar, which can better increase the rigidity of the upper section 1a of the A-pillar and improve the compressive strength and impact force transmission capacity of the A-pillar 1.

[0086] In practice, the aforementioned reinforcing tube 104 can generally be fixed to the inner plate 101 of the A-pillar by welding. In addition to being connected to the inner plate 101 of the A-pillar, the reinforcing tube 104 can also be connected to the A-pillar reinforcing plate 103 by setting up structures such as connecting brackets.

[0087] Furthermore, in some of the exemplary embodiments, it is still as follows Figure 9 as well as Figure 12 and Figure 13 As shown in the figure, in this embodiment, for example, a first reinforcing bracket 105 can be provided between the inner A-pillar panel 101 and the A-pillar reinforcing plate 103. The first reinforcing bracket 105 is located at the top of the lower section 1b of the A-pillar and near the corner between the upper and lower sections of the A-pillar 1, and the bottom end of the reinforcing tube 104 is fixed between the first reinforcing bracket 105 and the inner A-pillar panel 101.

[0088] At this time, by setting a first reinforcing bracket 105 between the inner A-pillar panel 101 and the A-pillar reinforcing plate 103, the first reinforcing bracket 105 is located at the top of the lower section 1b of the A-pillar, and the bottom end of the reinforcing tube 104 is also fixed between the first reinforcing bracket 105 and the inner A-pillar panel 101. This not only increases the structural strength of the corner formed between the upper and lower sections of the A-pillar 1 by using the first reinforcing bracket 105, but also increases the deformation resistance of the A-pillar 1 during vehicle collision, preventing the A-pillar 1 from bending or collapsing prematurely at the corner.

[0089] At the same time, by setting the first reinforcing bracket 105, it is obviously possible to utilize the connecting effect of the first reinforcing bracket 105 between the reinforcing tube 104 and the lower section 1b of the A-pillar to improve the transmission effect of the collision force at the reinforcing tube 104 to the lower section 1b of the A-pillar, which can avoid the interruption of the transmission of the collision force and better ensure the overall collision force transmission and dispersion ability of the A-pillar 1.

[0090] In specific implementations, in some exemplary embodiments, preferably, the aforementioned first reinforcing bracket 105 may refer to, for example, [the following text is missing from the original] Figure 12 The structure shown is box-shaped, and the first reinforcing bracket 105 is also fixed to the inner plate 101 of the A-pillar, forming a cavity S between the first reinforcing bracket 105 and the inner plate 101 of the A-pillar.

[0091] In this way, the first reinforcing bracket 105 adopts a box-shaped structure, and the first reinforcing bracket 105 and the inner plate 101 of the A-pillar form a cavity S. It can be understood that this embodiment can utilize the characteristics of the box-shaped structure and the high strength of the cavity structure to ensure the structural strength of the first reinforcing bracket 105 itself, as well as to ensure the reinforcing effect of the first reinforcing bracket 105 on the overall structure of the A-pillar 1.

[0092] In practice, the aforementioned box-shaped first reinforcing bracket 105 can be fixed to the inner panel 101 of the A-pillar by means of flange welding at its edge.

[0093] In this embodiment, by Figure 13 And continue as Figures 14 to 16 As shown, in some exemplary embodiments, a second reinforcing bracket 106 located within the cavity Q may be further fixedly connected to the inner A-pillar panel 101, and still as Figure 10 As shown, a notch 104a can also be formed on one side of the bottom end of the reinforcing tube 104, so that a portion of the second reinforcing bracket 106 is embedded in the notch 104a.

[0094] In practice, the notch 104a can be formed on the hydrogenation pipe 104 by conventional machining or other methods. Meanwhile, the second reinforcing bracket 106 can be L-shaped as a whole and fixed to the inner plate 101 of the A-pillar by welding the flange on one side.

[0095] By setting a second reinforcing bracket 106 on the inner panel 101 of the A-pillar, and embedding part of the second reinforcing bracket 106 into the notch 104a at the bottom end of the reinforcing tube 104, it can be understood that the interlocking action between the second reinforcing bracket 106 and the bottom end of the reinforcing tube 104 can provide good support for the reinforcing tube 104 under the condition of vehicle roof pressure, and enable the lower section 1b of the A-pillar to better bear the collision force transmitted by the reinforcing tube 104. This not only helps to improve the overall stability of the A-pillar 1 structure, but also ensures the effective transmission of collision force to the lower section 1b of the A-pillar.

[0096] Continue by Figure 1 , Figure 2 and combined Figures 17 to 19 As shown in the illustration, in some exemplary embodiments, the top cover beam 2 structurally includes an inner beam plate 202 and an outer beam plate 201 that are fastened together.

[0097] Meanwhile, the portion of the A-pillar inner panel 101 located at the bottom of the roof beam 2, namely the aforementioned overlapping portion 101a, overlaps with the beam inner panel 202, and cavities are also formed between the beam inner panel 202 and the beam outer panel 201, as well as between the beam inner panel 202 and the overlapping A-pillar inner panel 101.

[0098] At this point, the top cover beam 2 includes the inner beam 202 and the outer beam 201 that are fastened together. The top cover beam 2 adopts a double-layer plate structure, which ensures the structural strength of the top cover beam 2 itself.

[0099] By constructing cavities between the inner plate 202 and the outer plate 201 of the crossbeam, and between the inner plate 202 of the crossbeam and the overlapping portion 101a of the inner plate 101 of the A-pillar, it is clear that the double-cavity structure formed by the overlapping area of ​​the top cover crossbeam 2 and the inner plate 101 of the A-pillar can increase the rigidity of the connection between the top cover crossbeam 2 and the A-pillar 1. This allows the collision force between the top cover crossbeam 2 and the A-pillar 1 to be transmitted efficiently and with low loss, which is beneficial to further ensuring the transmission effect of the collision force between the top cover crossbeam 2 and the A-pillar 1.

[0100] In practice, the outer beam 201 and the inner beam 202 can generally be made of stamped sheet metal parts, and the outer beam 201 and the inner beam 202 can be welded together at their edges.

[0101] Furthermore, in some of the exemplary implementations, the following continues... Figure 20 and Figure 21 As shown, preferably, in this embodiment, recesses 202a are provided at intervals on the rear edge of the inner plate 202 of the beam, and the recesses 202a are also a plurality of recesses arranged at intervals along the length direction of the inner plate 202 of the beam.

[0102] Therefore, by setting spaced recesses 202a along the edge of the inner beam 202, and making multiple recesses 202a spaced along the length of the inner beam 202, the edge of the inner beam 202 becomes corrugated. This significantly increases the moment of inertia of the inner beam 202 section, greatly improving the bending stiffness of the inner beam 202 itself and the roof beam 1 as a whole at a relatively low weight cost. This allows the roof beam 2 to better transfer loads, especially lateral and torsional loads. At the same time, it also increases the roof beam 2's resistance to bending deformation, enabling the roof beam 2 and the A-pillars 1 on both sides to form a frame structure with good rigidity and strength. This helps to improve the overall structural performance of the roof beam 2 and improves the collision safety of the front of the vehicle.

[0103] In practical implementation, the aforementioned spaced recesses 202a are typically formed on the inner plate 202 of the beam during its fabrication. Furthermore, it is worth noting that, in addition to providing recesses 202a at the rear edge of the inner plate 202, similar arrangements can also be used in other embodiments, such as providing recesses 202a at the front edge of the inner plate 202, or providing recesses 202a only at the front edge of the inner plate 202.

[0104] It is worth noting that, regarding the front structure of the vehicle body in this embodiment, based on the above exemplary embodiments, in specific implementation, as a preferred embodiment, it is still composed of... Figures 1 to 21 As shown, it may include, for example, A-pillars 1 located on the left and right sides, and a top cover beam 2 connecting the tops of the two A-pillars 1.

[0105] The A-pillar has an inner A-pillar panel 101, and an A-pillar reinforcing plate 103 and an outer A-pillar panel 102 connected sequentially to the outside of the inner A-pillar panel 101. The top of the inner A-pillar panel 101 is curved, and the top of the inner A-pillar panel 101 extends to the bottom of the roof beam 2. The portion of the inner A-pillar panel 101 located at the bottom of the roof beam 2 overlaps with the roof beam 2.

[0106] The A-pillar 1 is also provided with a reinforcing tube 104 located between the inner plate 101 and the reinforcing plate 103 of the A-pillar. The reinforcing tube 104 is specifically located in the upper section 1a of the A-pillar, and the top end of the reinforcing tube 104 extends to the top end of the A-pillar 1, while the bottom end of the reinforcing tube 104 extends to the top end of the lower section 1b of the A-pillar.

[0107] In addition, a first reinforcing bracket 105 is provided inside the A-pillar 1 at the top of the lower section 1b of the A-pillar. The bottom end of the reinforcing tube 104 is fixed between the first reinforcing bracket 105 and the inner plate 101 of the A-pillar. The first reinforcing bracket 105 adopts a box-shaped structure. The bottom end of the reinforcing tube 104 is provided with a notch 104a. A second reinforcing bracket 106 is also partially embedded in the notch 104a in the cavity Q formed between the first reinforcing bracket 105 and the inner plate 101 of the A-pillar.

[0108] In addition, the top cover beam 2 includes an outer beam plate 201 and an inner beam plate 202 that are fastened together. Cavities are formed between the inner beam plate 202 and the outer beam plate 201, and between the inner beam plate 202 and the A-pillar inner plate 101 that overlaps with it. At the same time, multiple recesses 202a are also provided at intervals on the rear edge of the inner beam plate 202.

[0109] In the preferred embodiment of the above-mentioned front structure of the vehicle body, the specific setting and arrangement of the A-pillar 1 and the roof beam 2, etc., 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 A-pillar 1 and the roof beam 2, etc., can also be referred to the description in the above-mentioned exemplary embodiments.

[0110] The front structure of the vehicle body in this embodiment adopts the above design. By bending the top of the inner A-pillar panel 101, and extending the overlapping portion 101a of the top of the inner A-pillar panel 101 to the bottom of the roof beam 2 and overlapping it, and by providing a reinforcing tube 104, a first reinforcing bracket 105 and a second reinforcing bracket 106 inside the A-pillar 1, a double-cavity structure is formed at the overlapping position of the roof beam 2 and the inner A-pillar panel 101. This increases the structural strength of the A-pillar 1 and the roof beam 2, and forms a more through force transmission channel between the roof beam 2 and the A-pillar 1. This improves the collision force transmission capability between the A-pillar 1 and the roof beam 2, and enhances the collision force transmission effect of the vehicle body during a collision, thus improving the collision safety of the vehicle.

[0111] 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.

[0112] In this embodiment, the vehicle is preferably a high-performance model with a low, streamlined body and no traditional roof structure. This is achieved through innovative design of the A-pillar 1 and roof crossbeam 2 at the front of the vehicle, enhancing the safety of this type of vehicle in vehicle collisions, especially under roof-crushing conditions. However, besides being applicable to high-performance models with a low, streamlined body and no traditional roof structure, this embodiment can also be a traditional model with a roof structure; there is no limitation in this regard.

[0113] In this embodiment, by setting the front body structure as described above, the weak connection area between the A-pillar 1 and the roof beam 2 can be eliminated, avoiding a sudden drop in stiffness at the connection between the two. This increases the permeability of the force transmission channel formed between the roof beam 2 and the A-pillar 1, improves the collision force transmission capability between the A-pillar 1 and the roof beam 2, and enhances the collision force transmission effect of the vehicle body during a collision, thus improving the vehicle's collision safety.

[0114] 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 structure of a vehicle body, characterized in that: It includes A-pillars (1) located on the left and right sides, and a top cover beam (2) connecting the tops of the A-pillars (1) on both sides. The A-pillar has an inner A-pillar panel (101), the top of which is curved and extends to the bottom of the top cover beam (2), and the portion of the inner A-pillar panel (101) at the bottom of the top cover beam (2) overlaps the top cover beam (2).

2. The front structure of the vehicle body according to claim 1, characterized in that: The A-pillar (1) also has an A-pillar reinforcing plate (103) and an A-pillar outer plate (102) connected sequentially to the outside of the inner A-pillar plate (101). Cavities are formed between the inner A-pillar panel (101) and the reinforcing A-pillar panel (103), and between the reinforcing A-pillar panel (103) and the outer A-pillar panel (102).

3. The front structure of the vehicle body according to claim 2, characterized in that: The A-pillar (1) also has a reinforcing tube (104); The reinforcing tube (104) is located in the upper section (1a) of the A-pillar (1), and the top end of the reinforcing tube (104) extends to the top end of the A-pillar (1), and the bottom end of the reinforcing tube (104) extends to the top of the lower section (1b) of the A-pillar (1).

4. The front structure of the vehicle body according to claim 3, characterized in that: The reinforcing tube (104) is located between the inner plate (101) of the A-pillar and the reinforcing plate (103) of the A-pillar, and a first cavity (N) is formed between the inner plate (101) of the A-pillar and the reinforcing plate (103) of the A-pillar, and a second cavity (M) is formed outside the reinforcing tube (104).

5. The front structure of the vehicle body according to claim 4, characterized in that: A first reinforcing bracket (105) is provided between the inner A-pillar panel (101) and the A-pillar reinforcing plate (103). The first reinforcing bracket (105) is located at the top of the lower section (1b) of the A-pillar, and the bottom end of the reinforcing tube (104) is fixed between the first reinforcing bracket (105) and the inner plate (101) of the A-pillar.

6. The front structure of the vehicle body according to claim 5, characterized in that: The first reinforcing bracket (105) has a box-shaped structure and is fixedly connected to the inner plate of the A-pillar (101), forming a cavity (S) between the first reinforcing bracket (105) and the inner plate of the A-pillar (101).

7. The front structure of the vehicle body according to claim 6, characterized in that: A second reinforcing bracket (106) located inside the cavity (Q) is fixedly connected to the inner plate (101) of the A-pillar. A notch (104a) is formed on one side of the bottom end of the reinforcing tube (104), and a portion of the second reinforcing bracket (106) is embedded in the notch (104a).

8. The vehicle front structure according to any one of claims 1 to 7, characterized in that: The top cover beam (2) includes an inner beam plate (202) and an outer beam plate (201) that are fastened together. The portion of the inner A-pillar panel (101) located at the bottom of the top cover beam (2) overlaps the inner beam panel (202), and cavities are formed between the inner beam panel (202) and the outer beam panel (201), as well as between the inner beam panel (202) and the inner A-pillar panel (101) that overlaps with it.

9. The front structure of the vehicle body according to claim 8, characterized in that: The front and / or rear edges of the inner plate of the beam (202) are provided with recesses (202a), and the recesses (202a) are a plurality of them arranged at intervals along the length of the inner plate of the beam (202).

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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