Front body structure and vehicle

Abstract

The application provides a vehicle body front reinforcing structure and a vehicle. The vehicle body front reinforcing structure comprises a front side reinforcing structure and a rear side reinforcing structure. The front side reinforcing structure comprises a front shock tower, a front wheelhouse side beam, a front engine compartment upper cross beam and a front windshield lower cross beam, and the front windshield lower cross beam, the front engine compartment upper cross beam, and the front shock tower and the front wheelhouse side beam on both sides are connected to form a first ring structure. The rear side reinforcing structure comprises an instrument panel cross beam and a front wall upper cross beam, the left and right ends of the front wall upper cross beam are connected to the instrument panel cross beam through A column reinforcing longitudinal beams respectively, and the instrument panel cross beam, the front wall upper cross beam and the A column reinforcing longitudinal beams on both sides are connected to form a second ring structure. The vehicle body front reinforcing structure can increase the overall rigidity of the front wall plate on both sides, form a through force transmission channel on both sides of the front wall plate, help the collision force to be transmitted and dispersed at the front wall plate position of the vehicle body front part, and effectively improve the safety of the whole vehicle.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle body, in particular to a front body reinforcement structure, and the present application also relates to a vehicle provided with the front body reinforcement structure. BACKGROUND

[0002] The front body structure is an important component in the front part of the vehicle body, which generally includes the front wall and its surrounding components, such as the front windshield lower cross beam, the front shock tower, the front engine compartment upper cross beam, and the A-pillar, etc. The main function of the front body structure is to separate the driver's cabin from the front engine compartment, to attenuate the heat, noise and vibration energy generated by the power assembly in the front engine compartment, to improve the NVH (Noise, Vibration, Harshness) performance of the vehicle, and to prevent the invasion of the engine compartment components into the driver's cabin during vehicle collision, so as to ensure the safety of the passengers.

[0003] Therefore, improving the structural strength and rigidity of the front body structure is a key factor to ensure the safety of the front part of the vehicle body and the whole vehicle. However, the existing front body structure has the problems of unreasonable overall structure arrangement, weak overall structural strength and rigidity, and fewer force transmission channels, which leads to insufficient collision force transmission and dispersion effect, and cannot guarantee the collision safety of the whole vehicle. SUMMARY

[0004] Therefore, the present application aims to provide a front body reinforcement structure to improve the collision safety of the whole vehicle.

[0005] To achieve the above-mentioned purpose, the technical scheme of the present application is as follows:

[0006] A front body reinforcement structure, comprising a front side reinforcement structure arranged on the side of the front wall facing the vehicle head, and a rear side reinforcement structure arranged on the side of the front wall facing the vehicle tail.

[0007] The front side reinforcement structure comprises front shock towers arranged on the left and right sides, front wheel cover side beams connected with the front shock towers on the left and right sides, a front engine compartment upper cross beam connected between the front shock towers on the left and right sides, and a front windshield lower cross beam connected between the rear ends of the front wheel cover side beams on the left and right sides, and the front windshield lower cross beam, the front engine compartment upper cross beam, and the front shock towers and the front wheel cover side beams on the left and right sides are connected to form a first ring-shaped structure.

[0008] The rear side reinforcement structure comprises an instrument panel cross beam connected between the A-pillars on the left and right sides, and a front wall upper cross beam connected to the front wall, and the left and right ends of the front wall upper cross beam are connected to the instrument panel cross beam through the A-pillar reinforcement longitudinal beams, and the instrument panel cross beam, the front wall upper cross beam, and the A-pillar reinforcement longitudinal beams on the left and right sides are connected to form a second ring-shaped structure.

[0009] Further, a connecting support is connected between the front engine compartment upper cross beam and the front windshield lower cross beam, and the connecting support divides the first ring structure into a plurality of ring structures.

[0010] Further, the connecting support is a plurality of supports arranged along the left-right direction of the vehicle.

[0011] Further, the connecting support comprises a middle support arranged in the middle, and side supports arranged on the left and right sides of the middle support, and each side support is arranged close to the front shock tower on the same side.

[0012] Further, the side of each front shock tower is provided with a front reinforcing longitudinal beam and / or a rear reinforcing longitudinal beam; the bottom end of each rear reinforcing longitudinal beam is connected to the front engine compartment longitudinal beam on the same side, and the top end of each rear reinforcing longitudinal beam is connected to the front engine compartment upper cross beam; the top end of each front reinforcing longitudinal beam extends to the top of the front shock tower on the same side, and the bottom end of each front reinforcing longitudinal beam is connected together by the front engine compartment lower cross beam arranged between the top ends of the front engine compartment longitudinal beams on the left and right sides.

[0013] Further, the instrument panel cross beam comprises a steel main beam body and a plastic part injection molded on the main beam body; a steel steering column mounting support is connected to the main beam body, and the plastic part comprises an upper reinforcing part arranged close to the steering column mounting support, which extends to the side of the front panel and is connected to the front panel.

[0014] Further, the cross section of the main beam body is in the shape of "C", the plastic part comprises a reinforcing rib plate arranged inside the main beam body; and / or, the plastic part comprises an A-pillar connecting part arranged at at least one end of the main beam body, and a plurality of mounting parts distributed on the main beam body, the A-pillar connecting part is provided with an A-pillar connecting point and a positioning column for positioning the main beam body during installation, and the mounting parts are provided with mounting points for mounting vehicle components.

[0015] Further, one end of the steering column mounting support is connected to the main beam body, and the other end of the steering column mounting support is connected to a steel reinforcing support, and the reinforcing support is connected to the front panel.

[0016] Further, the steering column mounting support and the reinforcing support are connected in the shape of "V"; and / or, the width of the reinforcing support gradually increases from the end connected to the steering column mounting support to the end connected to the front panel.

[0017] Further, the plastic part comprises a reinforcing rib plate connected between the steering column mounting bracket and the main beam body; and / or, the upper reinforcing members are arranged on the left and right sides of the steering column mounting bracket, and the ends of the upper reinforcing members and the front wall connected with the front wall and the ends of the reinforcing bracket connected with the front wall are connected together.

[0018] Further, the plastic part comprises a lower reinforcing member connected at one end with the main beam body and extending downward along the up-down direction of the whole vehicle, and the bottom end of the lower reinforcing member can be connected with the middle channel.

[0019] Further, the two lower reinforcing members are arranged oppositely left and right, and the distance between the two lower reinforcing members gradually decreases from top to bottom along the up-down direction of the whole vehicle, and / or, a reinforcing beam is connected between the two lower reinforcing members.

[0020] Compared with the prior art, the present application has the following advantages:

[0021] The front part reinforcing structure of the vehicle body can increase the overall stiffness of the front and rear sides of the front wall by forming annular reinforcing structures on the front and rear sides of the front wall, and can form a through force transmission channel on the front and rear sides of the front wall by using the annular structure, which is helpful for the transmission and dispersion of the collision force at the front wall position of the front part of the vehicle body, and can improve the safety of the whole vehicle.

[0022] In addition, the connecting bracket is arranged between the front engine compartment upper cross beam and the front windshield lower cross beam, and multiple annular structures are separated by the connecting bracket, which can further increase the overall stiffness of the front side of the front wall, and can increase the force transmission channel between the front shock tower and the front windshield lower cross beam, which is helpful for improving the safety of the whole vehicle, and the connecting bracket is arranged in multiple intervals, which can better strengthen the stiffness and increase more force transmission channels, which is beneficial for the transmission of the collision force.

[0023] The side bracket is arranged close to the front shock tower, which can improve the reinforcing ability of the front shock tower in the X direction, and is helpful for increasing the structural strength of the front shock tower. The front reinforcing longitudinal beam and the rear reinforcing longitudinal beam can improve the structural strength of the front shock tower position, which is helpful for reducing the thickness of the shock tower and achieving weight reduction. At the same time, the front engine compartment lower cross beam can be combined with the front engine compartment upper cross beam to better improve the Y-direction stiffness of the front part of the vehicle body, which is helpful for improving the safety of the whole vehicle.

[0024] The composite structure of the instrument panel cross beam is formed by the steel main beam body and the injection molded plastic part, the steel main beam body and the steering column mounting bracket are used to ensure the structural strength of the instrument panel cross beam and the mounting strength of the steering column, meanwhile, the injection molded plastic part is also beneficial to reduce the weight of the instrument panel cross beam, and the light weight design is achieved, and the material cost of the vehicle is reduced, and the rigidity of the steering column mounting position is improved by the upper reinforcing part, and the stability of the steering column after installation is improved, and the use quality of the vehicle is improved.

[0025] In addition, the main beam body is in the shape of "C", which is convenient to be prepared by stamping or rolling, and the reinforcing rib plate is arranged to improve the structural strength of the main beam body. The A-pillar connecting part is arranged to ensure the reliability of the connection between the instrument panel cross beam and the A-pillar, and the mounting part is arranged to facilitate the installation of the components on the instrument panel of the vehicle, and the positioning column is arranged to improve the convenience of the installation of the instrument panel cross beam and improve the assembly efficiency of the vehicle. The reinforcing bracket is arranged to further increase the rigidity of the steering column mounting position and improve the stability of the steering column, and the steering column mounting bracket and the reinforcing bracket are connected in the shape of "V" to form an inverted triangular structure, and the structural reinforcing effect is improved.

[0026] The reinforcing bracket is arranged to gradually increase in width in the direction of the front wall, which can increase the connection strength between the reinforcing bracket and the front wall and improve the reinforcing effect of the reinforcing bracket. The reinforcing rib plate is arranged to further improve the reliability of the connection between the steering column mounting bracket and the main beam body, and the upper reinforcing parts are arranged on both sides of the steering column mounting bracket and connected with the reinforcing bracket, so that the upper reinforcing parts are connected in the shape of a ring, and the reinforcing effect of the upper reinforcing parts is improved by the large structural strength of the ring.

[0027] In addition, the lower reinforcing parts connected with the middle channel are arranged to improve the rigidity of the middle part of the instrument panel cross beam by the support of the middle channel and the lower reinforcing parts, which is beneficial to reduce the vibration of the instrument panel cross beam under external excitation and improve the use effect. The distance between the two lower reinforcing parts is gradually reduced, so that the two lower reinforcing parts are arranged in the shape of "8", which can improve the reinforcing effect of the overall structure formed by the two lower reinforcing parts. The reinforcing beam is arranged between the two lower reinforcing parts to improve the support rigidity of each lower reinforcing part by the connection of the reinforcing beam, so as to further improve the rigidity and stability of the middle part of the instrument panel cross beam.

[0028] Another object of the present application is to provide a vehicle provided with the front body reinforcement structure as described above.

[0029] The vehicle body front reinforcing structure of the present application is provided with the above-mentioned vehicle body front reinforcing structure, which can improve the overall rigidity of the front wall position of the vehicle body front part, facilitate the smooth transmission of the collision force at the front wall position, and has good frontal crash safety. BRIEF DESCRIPTION OF DRAWINGS

[0030] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification. The illustrations are shown for the purpose of enabling one skilled in the art to make and use the application, and do not limit the unreasonably the application. In the drawings:

[0031] Figure 1 The overall structure schematic view of the vehicle body front reinforcing structure according to the embodiment of the present application;

[0032] Figure 2 The partial structure schematic view of the vehicle body front reinforcing structure according to the embodiment of the present application;

[0033] Figure 3 The structure schematic view of the front wall upper cross beam according to the embodiment of the present application;

[0034] Figure 4 The structure schematic view of the A-pillar reinforcing longitudinal beam according to the embodiment of the present application;

[0035] Figure 5 The structure schematic view of the middle support according to the embodiment of the present application;

[0036] Figure 6 The structure schematic view of the side support according to the embodiment of the present application;

[0037] Figure 7 The structure schematic view of the front engine compartment upper cross beam and the rear reinforcing longitudinal beam according to the embodiment of the present application;

[0038] Figure 8 The structure schematic view of the front reinforcing longitudinal beam according to the embodiment of the present application;

[0039] Figure 9 The structure schematic view of the front engine compartment lower cross beam according to the embodiment of the present application;

[0040] Figure 10 The structure schematic view of the instrument panel beam according to the embodiment of the present application;

[0041] Figure 11 The structure schematic view of the structure shown in Figure 10 The structure schematic view of the structure shown in

[0042] Figure 12 The structure schematic view of the structure shown in Figure 11 The structure schematic view of the structure shown in

[0043] Figure 13The structure schematic view of the main beam body and the steering column mounting bracket and the reinforcing bracket in assembly is shown in the embodiment of the present application.

[0044] Figure 14 The structure schematic view of the main beam body is shown in the embodiment of the present application.

[0045] Figure 15 The structure schematic view of the steering column mounting bracket and the reinforcing bracket in assembly is shown in the embodiment of the present application.

[0046] Marked explanation:

[0047] 100, instrument panel beam;

[0048] 1, main beam body; 2, plastic part; 3, front engine compartment upper cross beam; 4, A column; 5, front engine compartment longitudinal beam; 7, front wall; 8, front wall upper cross beam; 9, A column reinforcing longitudinal beam; 10, front reinforcing longitudinal beam; 11, rear reinforcing longitudinal beam; 12, middle channel; 13, connecting bracket; 15, front wall connecting plate; 17, rocker beam; 18, front wheel cover side beam; 19, front windshield lower cross beam; 20, front floor; 21, front shock tower; 22, front engine compartment lower cross beam;

[0049] 101, steering column mounting bracket; 102, reinforcing bracket;

[0050] 201, upper reinforcing part; 202, reinforcing rib plate; 203, A column connecting part; 2031, positioning column; 204, mounting part; 205, reinforcing rib plate; 206, lower reinforcing part; 207, reinforcing beam;

[0051] 301, upper plate body; 302, lower plate body;

[0052] 1301, middle bracket; 1302, side bracket. Specific implementation

[0053] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0054] In the description of the present application, it should be noted that if the terms indicating the orientation or position relationship such as "upper", "lower", "inner", "outer" and the like appear, they are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, if the terms "first", "second" and the like appear, they are also only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0055] In the vehicle in which the front portion reinforcement structure of the present application is installed, the terms "upper, lower, left, right, front, and rear" used in the embodiments are defined based on the up-down direction (also referred to as the height direction), the left-right direction (also referred to as the width direction), and the front-rear direction (also referred to as the length direction, or the head-tail direction) of the vehicle. The terms "inner and outer" are defined based on the outline of the corresponding component, for example, the "inner" and "outer" of the vehicle are defined based on the outline of the vehicle, with the side closer to the middle of the vehicle being the "inner" side, and the opposite side being the "outer" side.

[0056] In addition, in the description of the present application, unless otherwise explicitly defined, the components are connected by using the conventional connection structure in the art. Moreover, the terms "mounting", "connecting", "connection", and "connector" should be interpreted in a broad sense. For example, it can be fixed connection, detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood in combination with the specific circumstances.

[0057] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0058] Embodiment One

[0059] The present embodiment relates to a front portion reinforcement structure of a vehicle body, which not only increases the overall rigidity of the front and rear sides of the cowl panel 7, but also forms a through force transmission channel at the front and rear sides of the cowl panel 7, so as to facilitate the transmission and dispersion of the impact force at the front portion of the vehicle body, thereby improving the crash safety of the vehicle.

[0060] As shown in the overall structure of Figure 1 and Figure 2 The front portion reinforcement structure of the present embodiment includes a front side reinforcement structure provided on the side of the cowl panel 7 facing the front of the vehicle, and a rear side reinforcement structure provided on the side of the cowl panel 7 facing the rear of the vehicle.

[0061] The front side reinforcement structure includes front shock towers 21 provided on the left and right sides, front wheelhouse side beams 18 connected to the front shock towers 21 on each side, a front engine compartment upper cross beam 3 connected between the front shock towers 21 on the two sides, and a front windshield lower cross beam 19 connected between the rear ends of the front wheelhouse side beams 18 on the two sides, and the front windshield lower cross beam 19, the front engine compartment upper cross beam 3, and the front shock towers 21 and the front wheelhouse side beams 18 on the two sides form a first ring-shaped structure.

[0062] In addition, the above-mentioned rear-side strengthening structure includes a dashboard crossbeam 100 connected between the left and right A-pillars 4, and a front upper crossbeam 8 connected to the front bulkhead 7. The left and right ends of the front upper crossbeam 8 are respectively connected to the dashboard crossbeam through A-pillar strengthening longitudinal beams 9, and the dashboard crossbeam 100, the front upper crossbeam 8, and the A-pillar strengthening longitudinal beams 9 on both sides are connected to form a second annular structure.

[0063] It is worth mentioning that, to ensure the structural performance of the front upper crossbeam 8 itself, for example Figure 3 as shown in, the cross-section of the front upper crossbeam 8 in this embodiment can preferably be set to be in a "U" shape, which is convenient for installation while enhancing its structural strength.

[0064] Regarding the structures of the front bulkhead 7 not mentioned in this embodiment, reference can be made to the common relevant structural parts in the prior art. For example, the front bulkhead 7 is provided with strengthening protrusions, as well as mounting holes or through-holes for installing other vehicle body components.

[0065] Considering the connection stability between the front upper crossbeam 8 and the front bulkhead 7, when specifically setting the structural form of the above-mentioned front upper crossbeam 8, it can be set and adjusted according to the avoidance requirements of vehicle body components installed on the front bulkhead 7 or relevant structures provided on the front bulkhead 7, so as to increase the connection area between the front upper crossbeam 8 and the front bulkhead 7. For example, the middle part of the front upper crossbeam 8 arches upward.

[0066] In the specific structure, as Figure 4 shown, the cross-section of the A-pillar strengthening longitudinal beam 9 can be set to be the same "U" shape as the cross-section of the front upper crossbeam 8, and each side of the A-pillar strengthening longitudinal beam 9 is connected to the A-pillar 4 and the front bulkhead 7 on the same side by welding process to ensure the connection strength. It should be noted that since the structures of the A-pillar strengthening longitudinal beams 9 on the left and right sides are basically the same and can be regarded as mirror images of each other, Figure 4 it is only a schematic diagram of the structure of the left A-pillar strengthening longitudinal beam 9.

[0067] Based on the above overall introduction, in this embodiment, as a preferred exemplary structure, as Figure 2 shown, a connection bracket 13 is connected between the front engine compartment upper crossbeam 3 and the front windshield lower crossbeam 19, and the connection bracket 13 divides multiple annular structures within the first annular structure.

[0068] Here, by setting a connection bracket 13 between the front engine compartment upper crossbeam 3 and the front windshield lower crossbeam 19 and thus dividing multiple annular structures, it can not only further increase the overall stiffness of the front side part of the front bulkhead, but also increase the force transmission channel between the front shock tower 21 and the front windshield lower crossbeam 19, which helps to improve the safety of the whole vehicle.

[0069] During specific implementation, as a preferred implementation form, still asFigure 2 As shown, the connecting support 13 is arranged in multiple along the left-right direction of the vehicle. Thus, better stiffness strengthening effect can be achieved, and more force transmission channels can be increased, which is beneficial to the transmission of the collision force.

[0070] As a preferred arrangement, in the embodiment, the connecting support 13 includes a middle support 1301 in the middle and side supports 1302 arranged on the left and right sides of the middle support 1301, and each side support 1302 is arranged close to the front shock tower 21 on the same side. Arranging the side support 1302 close to the front shock tower 21 can improve the strengthening ability of the front shock tower 21 in the X direction (i.e. the front-rear direction of the vehicle), which helps to increase the structural strength of the front shock tower 21.

[0071] It can be understood that when the connecting support 13 is composed of the middle support 1301 and the two side supports 1302, four annular structures can be separated in the first annular structure to cooperate with the first annular structure to form multiple force transmission channels, which effectively improves the structural strength and stiffness of the front side of the front wall.

[0072] It is still worth mentioning that in the embodiment, the specific structure of the connecting support 13 can be set and adjusted according to the actual arrangement requirements of the front engine compartment and the strength requirements of the connecting support 13 itself, for example Figure 5 and Figure 6 As shown, it can be in the shape of “Z” as a whole to connect the front engine compartment upper cross beam 3 and the front windshield lower cross beam 19. It should be noted that since the structures of the left and right side supports 1302 are basically the same and can be considered as mirror images of each other, Figure 6 only the structure of the left side support 1302 is shown.

[0073] In addition, the number and arrangement of the connecting support 13 can be set and adjusted according to the actual connection requirements between the front engine compartment upper cross beam 3 and the front windshield lower cross beam 19, for example, each side support 1302 is arranged in two along the left-right direction of the vehicle, and the outermost side support 1302 is arranged close to the front shock tower 21 on the same side.

[0074] In addition, as a preferred embodiment, referring to Figure 2 As shown, the side of each front shock tower 21 is provided with a front reinforcing longitudinal beam 10 and a rear reinforcing longitudinal beam 11. The bottom end of each rear reinforcing longitudinal beam 11 is connected to the front engine compartment longitudinal beam 5 on the same side, and the top end of each rear reinforcing longitudinal beam 11 is connected to the front engine compartment upper cross beam 3.

[0075] The top end of each side front reinforcing longitudinal beam 10 extends to the top of the same side front shock tower 21, and the bottom end of the two side front reinforcing beams 207 are connected together by the front under-nacelle cross beam 22 arranged between the top of the two side front nacelle longitudinal beams 5.

[0076] In this way, the front reinforcing longitudinal beam 10 and the rear reinforcing longitudinal beam 11 are arranged to improve the structural strength of the front shock tower 21 position, which is beneficial to reduce the thickness of the shock tower, achieve weight reduction, and at the same time, the front under-nacelle cross beam 22 is arranged in combination with the front upper-nacelle cross beam 3 to better improve the Y-direction (left-right direction of the vehicle) stiffness of the front part of the vehicle body, which is beneficial to improve the safety of the vehicle.

[0077] It can be understood that in the embodiment, the front under-nacelle cross beam 22, the two side front reinforcing longitudinal beams 10, the two side front shock towers 21 and the front upper-nacelle cross beam 3 can also form a ring structure to enhance the overall stiffness of the structure.

[0078] Of course, in the specific implementation of the embodiment, the front reinforcing longitudinal beam 10 or the rear reinforcing longitudinal beam 11 can be configured according to the structural reinforcement requirements at the front shock tower 21, for example, only the front reinforcing longitudinal beam 10 or the rear reinforcing longitudinal beam 11 is arranged, as long as the front shock tower 21 can meet the corresponding strength requirements.

[0079] At the same time, the structural form of the front reinforcing longitudinal beam 10 and the rear reinforcing longitudinal beam 11 described above can be set and adjusted according to the actual structural reinforcement requirements of the front shock tower 21, for example Figure 7 and Figure 8 as shown, the cross section of both can be arranged in the shape of "J" or "U".

[0080] The specific structural form of the front upper-nacelle cross beam 3 of the embodiment can adopt the common structural form of those skilled in the art, or can be as shown in Figure 7 to ensure the structural strength, the front upper-nacelle cross beam 3 includes an upper plate body 301 and a lower plate body 302 that are buckled to each other, if necessary, a cavity can be formed between the upper plate body 301 and the lower plate body 302 to increase the structural strength, and if necessary, the rear reinforcing longitudinal beam 11 can also be integrally formed with the lower plate body 302.

[0081] Furthermore, in the specific arrangement, the two ends of the front under-nacelle cross beam 22 of the embodiment can be respectively welded between the top of the two side front nacelle longitudinal beams 5, and as shown in Figure 9 , the cross section of the front under-nacelle cross beam 22 can be preferably arranged in the shape of "J" to increase the connection area between itself and the two side front nacelle longitudinal beams 5 while ensuring the structural strength of itself, thereby increasing the supporting effect.

[0082] In addition, in the embodiment, as a preferred exemplary structure, as shown in Figures 10 to 15As shown, the instrument panel cross beam 100 comprises a steel main beam body 1, and a plastic part 2 which is injection molded on the main beam body 1. The main beam body 1 is connected with a steel steering column mounting bracket 101, and the plastic part 2 comprises an upper reinforcing part 201 which is arranged close to the steering column mounting bracket 101, and extends to the side of the front cross plate 7 and is connected with the front cross plate 7.

[0083] Here, the instrument panel cross beam 100 adopts a composite structure of the steel main beam body 1 and the injection molded plastic part 2, which can utilize the steel main beam body 1 and the steering column mounting bracket 101 to ensure the structural strength of the instrument panel cross beam 100 and the installation strength of the steering column, and meanwhile, the injection molded plastic part 2 is also beneficial to reduce the overall weight of the instrument panel cross beam 100, which is helpful to realize lightweight design and reduce the material cost of the vehicle. By arranging the upper reinforcing part 201, the rigidity of the steering column mounting position can be improved, which is beneficial to improve the stability after the steering column is mounted and improve the use quality of the vehicle.

[0084] Specifically, in this embodiment, as a preferred implementation form, as shown in Figure 14 As shown, the cross section of the main beam body 1 is in the shape of "C", and the plastic part 2 comprises a reinforcing rib plate 202 arranged inside the main beam body 1. Here, by arranging the main beam body 1 in the shape of "C", it can be conveniently prepared by stamping or rolling, and by arranging the reinforcing rib plate 202, the structural strength of the main beam body 1 can be improved.

[0085] And in specific arrangement, the thickness of the main beam body 1 can be preferably 1.3mm or 1.5mm, and the thickness of the plastic part 2 can be preferably 2.5-3.5mm, for example, specifically 2.5mm, 3.0mm or 3.5mm, etc., so as to ensure the structural strength while ensuring lightweight.

[0086] At the same time, the material of the above-mentioned plastic part 2 can be made of the plastic material commonly used by those skilled in the art, for example, specifically PA6+GF60 material (i.e. nylon 6 material reinforced with 60% glass fiber, wherein PA6 is nylon 6 and GF is glass fiber) etc.

[0087] Of course, the reinforcing rib plate 202 of the present embodiment can be preferably arranged as a plurality of reinforcing rib plates arranged along the length direction of the main beam body 1 to enhance the reinforcing effect, and the thickness of the reinforcing rib plate 202 is also preferably 2.5-3.5mm, so as to facilitate the overall preparation and molding of the plastic part 2, and specifically 2.5mm, 3.0mm or 3.5mm, etc., and the specific structural form of the reinforcing rib plate 202 can also be set and adjusted according to the actual structural reinforcing requirement and arrangement requirement, for example, arranged as a straight line type extending in the up-down direction, or arranged as an X type, etc.

[0088] Still referring toFigures 10 to 13 In the embodiment shown, as a preferred implementation form, the plastic part 2 includes an A-pillar connecting piece 203 arranged at at least one end of the main beam body 1, and a plurality of mounting pieces 204 distributed on the main beam body 1, and the A-pillar connecting piece 203 is provided with an A-pillar connecting point and a positioning column 2031 for positioning the main beam body 1 during mounting, and the mounting piece 204 is provided with a mounting point for mounting a vehicle component.

[0089] It can be understood that the arrangement of the A-pillar connecting piece 203 can ensure the reliability of the connection between the instrument panel beam and the A-pillar 4, and the arrangement of the mounting piece 204 is conducive to the mounting of the components at the vehicle instrument panel, and the arrangement of the positioning column 2031 can improve the convenience of mounting the instrument panel beam and help improve the assembly efficiency of the whole vehicle.

[0090] In specific implementation, as a preferred arrangement form, the A-pillar connecting piece 203 is arranged at both ends of the main beam body 1 to ensure the stability of the connection between the instrument panel beam and the A-pillar 4. Meanwhile, the A-pillar connecting point and the mounting point on the mounting piece 204 can be arranged according to actual mounting requirements, for example, the two ends of the instrument panel beam are generally screwed with the A-pillar 4 on both sides through the A-pillar connecting piece 203 respectively, and at this time, the A-pillar connecting point is a screw hole and the like.

[0091] In view of the positioning and cooperation between the A-pillar connecting piece 203 and the A-pillar 4, a positioning hole is further arranged on the A-pillar 4 for the positioning column 2031 to insert, so as to realize the positioning and mounting of the instrument panel beam by inserting the positioning column 2031 into the positioning hole.

[0092] In addition, in the embodiment shown, Figure 10 As a preferred implementation form, one end of the steering column mounting bracket 101 is connected with the main beam body 1, and the other end of the steering column mounting bracket 101 is connected with a steel reinforcing bracket 102, and the reinforcing bracket 102 can be connected with the front apron 7. Thus, by arranging the reinforcing bracket 102, the rigidity of the steering column mounting position can be further increased, and the stability of the steering column can be improved.

[0093] Specifically, as shown in Figure 13 As a preferred implementation form, in the embodiment, the steering column mounting bracket 101 and the reinforcing bracket 102 are connected in a "V" shape, so that the two form an inverted triangular structure as a whole, and the structural reinforcing effect can be improved by taking advantage of the large strength of the triangular structure.

[0094] As a preferred implementation form, the width of the reinforcing bracket 102 gradually increases from the end connected with the steering column mounting bracket 101 to the end connected with the front wall 7, so that the connection strength between the reinforcing bracket 102 and the front wall 7 is increased, thereby helping to ensure the reinforcing effect of the reinforcing bracket 102.

[0095] In this embodiment, the connection between the reinforcing bracket 102 and the steering column mounting bracket 101 is convenient, and they can be connected by a connection structure commonly used by those skilled in the art, such as a screw connection structure. In addition, the specific structure of the reinforcing bracket 102 can be set and adjusted according to the actual structure reinforcing requirement and arrangement requirement.

[0096] For example, the cross section of the reinforcing bracket 102 can also be preferably set as "U" type, which not only helps to improve the structural strength, but also facilitates the injection molding of the plastic part 2 on the reinforcing bracket 102. It can be understood that the plastic part 2 has a part injection molded on the reinforcing bracket 102, which can help to ensure the connection stability of the plastic part 2 on the main beam body 1.

[0097] As for the specific structure of the steering column mounting bracket 101 of the present embodiment, it can also adopt the structure commonly used by those skilled in the art, or still be set as "U" type as shown in Figure 15 , so as to be screwed with the reinforcing bracket 102, and the part near the main beam body 1 can be provided with a through hole, so as to meet the injection molding requirement of the plastic part 2 and the installation requirement of the steering column and other components.

[0098] In this embodiment, continuing to refer to Figure 11 , as a preferred implementation form, the plastic part 2 includes a reinforcing rib plate 205 connected between the steering column mounting bracket 101 and the main beam body 1, so as to further improve the reliability of the connection between the steering column mounting bracket 101 and the main beam body 1.

[0099] Of course, the number and specific structure of the above-mentioned reinforcing rib plate 205 can be set and adjusted according to the actual reinforcing requirement, for example, the reinforcing rib plate 205 can be specifically arranged as two in the left-right direction, and the reinforcing rib plate 205 can be arranged as a rhombus structure.

[0100] At the same time, as another preferred implementation form, in this embodiment, still in combination with Figure 10 and Figure 11 , the left and right sides of the steering column mounting bracket 101 are provided with upper reinforcing members 201, and the end connected with the front wall 7 of the two sides of the upper reinforcing member 201 and the end connected with the front wall 7 of the reinforcing bracket 102 are connected together.

[0101] By setting the upper reinforcing members 201 on both sides of the steering column mounting bracket 101, and connecting the upper reinforcing members 201 on both sides with the reinforcing bracket 102, the upper reinforcing members 201 can be connected to form a ring structure, so as to utilize the characteristics of the ring structure with high strength, and improve the reinforcing effect of the upper reinforcing members 201.

[0102] In the specific structural design, the upper reinforcing member 201 of the embodiment can be preferably set as a "C" type with the cross section opening upward, and a plurality of reinforcing ribs can also be preferably arranged on the upper reinforcing member 201 to further improve the structural strength, and as shown in the figure, the specific structural form of the reinforcing ribs can also be set as the same linear type or "X" type as the reinforcing rib plate 202. Figure 12

[0103] In addition, in the embodiment, as a preferred implementation form, the plastic part 2 includes a lower reinforcing member 206 connected to the main beam body 1 at one end and extending downward along the up-down direction of the whole vehicle, and the bottom end of the lower reinforcing member 206 can be connected with the middle channel 12.

[0104] Here, it can be understood that the lower reinforcing member 206 connected with the middle channel 12 can improve the rigidity of the middle part of the instrument panel beam by the support of the middle channel 12 and the lower reinforcing member 206, which is beneficial to reduce the vibration of the instrument panel beam under external excitation, and thus improve the use effect.

[0105] In specific implementation, as a preferred implementation form, in the embodiment, the two lower reinforcing members 206 are arranged opposite to each other, and the distance between the two lower reinforcing members 206 gradually decreases from top to bottom along the up-down direction of the whole vehicle, so that the two lower reinforcing members 206 are arranged in an "eight" shape, so as to increase the reinforcing effect of the whole formed by the two lower reinforcing members 206.

[0106] Also as a preferred implementation form, in the embodiment, a reinforcing beam 207 is connected between the two lower reinforcing members 206. By arranging the reinforcing beam 207 between the two lower reinforcing members 206, the support rigidity of each lower reinforcing member 206 can be improved by the connecting effect of the reinforcing beam 207, so as to further improve the rigidity and stability of the middle part of the instrument panel beam.

[0107] Of course, in the specific structure, the number and arrangement form of the reinforcing beam 207 of the embodiment can be set and adjusted according to the structural reinforcing requirements between the two lower reinforcing members 206, for example, it can be arranged as two reinforcing beams 207 spaced apart in the up-down direction.

[0108] Moreover, it is worth mentioning that the specific structural form of the lower reinforcing member 206 of the embodiment can be set and adjusted according to the actual structural reinforcing requirements, for example Figure 11 ​As shown in the figure, the front and rear sides of the lower reinforcement 206 are concave, and a groove extending along the vertical direction is arranged in the concave part, and a plurality of reinforcing ribs are arranged in the groove.

[0109] It should be noted that the relevant structure of the front part of the vehicle body reinforcement structure in the embodiment is not mentioned, which can refer to the structure in the prior art, for example, the two side A pillars 4 are connected with the rocker beams 17, the front floor 20 and the middle channel 12 are arranged between the two side rocker beams 17, and the front wall connecting plate 15 is connected between the front floor 20 and the front wall 7, and the front windshield lower cross beam is arranged on the top of the front wall 7, and the front wheel cover is arranged between the side front engine compartment longitudinal beam 5 and the same side front wheel cover side beam 18, which will not be repeated here.

[0110] The front part of the vehicle body reinforcement structure in the embodiment can increase the overall stiffness of the front and rear sides of the front wall 7 by forming a ring-shaped reinforcement structure on the front and rear sides of the front wall 7, and the ring-shaped structure can form a through force transmission channel on the front and rear sides of the front wall 7, which can help to transmit and disperse the impact force at the front wall position of the front part of the vehicle body, and can improve the safety of the vehicle.

[0111] Embodiment two

[0112] The embodiment relates to a vehicle, and the vehicle is provided with the front part of the vehicle body reinforcement structure in the embodiment one.

[0113] The vehicle in the embodiment can increase the overall stiffness of the front and rear sides of the front wall 7 by arranging the front part of the vehicle body reinforcement structure in the embodiment one, and can form a through force transmission channel on the front and rear sides of the front wall 7, which can help to transmit and disperse the impact force at the front wall position of the front part of the vehicle body, and can improve the safety of the vehicle.

[0114] The above is only a preferred embodiment of the application, and is not used to limit the application, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the application should be included in the protection scope of the application.

Claims

1. A front body structure, characterized in that: it comprises a front side reinforcement structure arranged on a side of a front panel (7) facing a front of a vehicle, and a rear side reinforcement structure arranged on a side of the front panel (7) facing a rear of the vehicle; the front side reinforcement structure comprises front shock towers (21) arranged on left and right sides respectively, front wheelhouse side beams (18) connected with the front shock towers (21) on the left and right sides respectively, a front engine compartment upper cross beam (3) connected between the front shock towers (21) on the left and right sides, and a front windshield lower cross beam (19) connected between rear ends of the front wheelhouse side beams (18) on the left and right sides, and the front windshield lower cross beam (19), the front engine compartment upper cross beam (3), and the front shock towers (21) and the front wheelhouse side beams (18) on the left and right sides are connected to form a first ring structure; the rear side reinforcement structure comprises an instrument panel cross beam (100) connected between left and right A pillars (4), and a front panel upper cross beam (8) connected to the front panel (7), left and right ends of the front panel upper cross beam (8) are connected to the instrument panel cross beam (100) through A pillar reinforcement longitudinal beams (9) respectively, and the instrument panel cross beam (100), the front panel upper cross beam (8), and the A pillar reinforcement longitudinal beams (9) on the left and right sides are connected to form a second ring structure; the front shock towers (21) on the left and right sides are each provided with a front reinforcement longitudinal beam (10) and / or a rear reinforcement longitudinal beam (11); bottom ends of the rear reinforcement longitudinal beams (11) on the left and right sides are connected to front engine compartment longitudinal beams (5) on the left and right sides respectively, and top ends of the rear reinforcement longitudinal beams (11) on the left and right sides are connected to the front engine compartment upper cross beam (3); top ends of the front reinforcement longitudinal beams (10) on the left and right sides extend to top portions of the front shock towers (21) on the left and right sides respectively, and bottom ends of the front reinforcement longitudinal beams (10) on the left and right sides are connected together through a front engine compartment lower cross beam (22) arranged between top portions of the front engine compartment longitudinal beams (5) on the left and right sides.

2. The front body structure according to claim 1, characterized in that: a connecting bracket (13) is connected between the front engine compartment upper cross beam (3) and the front windshield lower cross beam (19), and the connecting bracket (13) divides the first ring structure into multiple ring structures.

3. The front body structure according to claim 2, characterized in that: the connecting bracket (13) is multiple connecting brackets (13) arranged at intervals along a left-right direction of the vehicle.

4. The front body structure according to claim 3, characterized in that: the connecting bracket (13) comprises a middle bracket (1301) located in the middle, and side brackets (1302) arranged on left and right sides of the middle bracket (1301) respectively, and each side bracket (1302) is arranged close to the front shock tower (21) on the same side.

5. The front body structure according to any one of claims 1 to 4, characterized in that: the instrument panel cross beam (100) comprises a main beam body (1) made of steel, and a plastic part (2) injection molded on the main beam body (1). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The main beam body (1) is connected with a steel steering column mounting bracket (101), the plastic part (2) comprises an upper reinforcing part (201) arranged close to the steering column mounting bracket (101), and the upper reinforcing part (201) extends to the side of the front wall (7) and is connected with the front wall (7).

6. The front body reinforcement structure according to claim 5, characterized in that: The cross section of the main beam body (1) is in a "C" shape, the plastic part (2) comprises a reinforcing rib plate (202) arranged inside the main beam body (1); and / or, The plastic part (2) comprises an A-pillar connecting part (203) arranged at at least one end of the main beam body (1), and a plurality of mounting parts (204) distributed on the main beam body (1), the A-pillar connecting part (203) is provided with an A-pillar connecting point and a positioning column (2031) for positioning the main beam body (1) during mounting, and the mounting part (204) is provided with a mounting point for mounting vehicle components.

7. The front body reinforcement structure according to claim 5, characterized in that: One end of the steering column mounting bracket (101) is connected with the main beam body (1), and the other end of the steering column mounting bracket (101) is connected with a steel reinforcing bracket (102), and the reinforcing bracket (102) is connected with the front wall (7).

8. The front body reinforcement structure according to claim 7, characterized in that: The steering column mounting bracket (101) and the reinforcing bracket (102) are connected in a "V" shape; and / or, The width of the reinforcing bracket (102) gradually increases from the end connected with the steering column mounting bracket (101) to the end connected with the front wall (7).

9. The front body reinforcement structure according to claim 7, characterized in that: The plastic part (2) comprises a reinforcing rib plate (205) connected between the steering column mounting bracket (101) and the main beam body (1); and / or, The left and right sides of the steering column mounting bracket (101) are provided with the upper reinforcing part (201), and the ends of the upper reinforcing part (201) and the front wall (7) and the end of the reinforcing bracket (102) and the front wall (7) are connected together.

10. The front body reinforcement structure according to claim 5, characterized in that: The plastic part (2) comprises a lower reinforcing part (206) connected with the main beam body (1) at one end and extending downward along the vertical direction of the vehicle at the other end, and the bottom end of the lower reinforcing part (206) can be connected with the middle channel (12).

11. The front body reinforcement structure according to claim 10, characterized in that: The lower reinforcing part (206) is arranged on the left and right sides; The distance between the two lower reinforcing parts (206) gradually decreases from top to bottom along the vertical direction of the vehicle, and / or a reinforcing beam (207) is connected between the two lower reinforcing parts (206).

12. A vehicle, characterized in that: The vehicle is provided with the front body reinforcement structure according to any one of claims 1 to 11. The vehicle is provided with the front body reinforcement structure according to any one of claims 1 to 11.

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