Vehicle body front structure and vehicle

Abstract

The utility model relates to the technical field of vehicle bodies, and provides a vehicle body front structure and a vehicle. The utility model discloses a vehicle body front structure which comprises a front wall plate and a front wall lower cross beam. A cavity arranged in the left-right direction of the whole vehicle is formed between the front wall lower cross beam and the front wall plate, an energy absorption support located in the cavity is arranged on the front wall plate, and a guide part for guiding the energy absorption support to collapse and absorb energy in the front-back direction of the whole vehicle is arranged on the energy absorption support. According to the vehicle body front structure, the crumple energy absorption effect of the dash panel can be improved, so that the front part of the whole vehicle has better collision performance, the impact energy of a power assembly and the invasion amount of the dash panel during collision are reduced, the living space of passengers is increased, and the safety quality of the whole vehicle can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of vehicle body, especially relates to a vehicle body front structure, and the utility model relates to a vehicle provided with the vehicle body front structure. BACKGROUND

[0002] The vehicle body front structure is an important component of the vehicle body, which usually comprises a front wall, a front wall left lower plate, a front wall right lower plate, a front wall lower cross beam, a front wall middle channel connecting plate and a front floor middle channel, and a plurality of reinforcing beams and the like. However, the existing vehicle body front structure has the problem of insufficient energy absorption during the collision process, which is prone to the problem of powertrain intrusion into the front wall, and is not conducive to the improvement of the safety performance of the whole vehicle. SUMMARY

[0003] Therefore, the utility model aims at providing a vehicle body front structure which is beneficial to improving the front collision safety performance of the whole vehicle.

[0004] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0005] A vehicle body front structure comprises a front wall and a front wall lower cross beam.

[0006] A cavity is formed between the front wall lower cross beam and the front wall along the left-right direction of the whole vehicle, and an energy absorption bracket is arranged in the cavity on the front wall, and a guide part is arranged on the energy absorption bracket to guide the energy absorption bracket to collapse and absorb energy along the front-rear direction of the whole vehicle.

[0007] Further, the energy absorption bracket comprises two side plates arranged opposite to each other in the left-right direction of the whole vehicle, and a top plate connected between the front ends of the two side plates, and the guide part is arranged on each side plate.

[0008] Further, the side plate is provided with a curved part arched to one side, and the curved part is arranged along the up-down direction of the whole vehicle and constitutes the guide part; the curved part on each side plate is arranged in multiple along the front-rear direction of the whole vehicle, and / or the cross section of the curved part is arc-shaped.

[0009] Further, the width of the energy absorption bracket in the left-right direction of the whole vehicle is gradually increased from front to back; and / or the rear end of each side plate is provided with a connecting flange connected to the front wall by lapping.

[0010] Further, from the up-down direction of the whole vehicle, the middle part of the front wall lower cross beam is arched to the front of the vehicle; and / or in the left-right direction of the whole vehicle, the cross-sectional area of the cavity is gradually increased from both ends to the middle part.

[0011] Further, the front wall plate is connected with the front floor tunnel through the middle tunnel connecting plate, and the bottom of the front wall plate is provided with a front engine compartment longitudinal beam rear section connecting plate.

[0012] Further, the top of the middle tunnel connecting plate is provided with a connecting plate reinforcing beam on the left and right sides, and the top of the front floor tunnel is provided with a middle tunnel reinforcing beam on the left and right sides.

[0013] Further, the energy-absorbing support is arranged in the cavity in a plurality of intervals along the left-right direction of the whole vehicle, and the connecting plate reinforcing beam on each side is arranged in front of and behind one of the energy-absorbing supports.

[0014] Further, the front wall plate is provided with a front wall reinforcing beam arranged along the up-down direction of the whole vehicle, the front wall reinforcing beam is arranged on the side of the front wall plate facing the rear of the whole vehicle, and the front wall reinforcing beam is arranged in front of and behind one of the connecting plate reinforcing beams.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] The vehicle body front structure is based on the cooperation of the cavity and the energy-absorbing support, can further collapse and absorb energy by increasing the energy-absorbing support on the basis of the energy absorption of the cavity, improves the collapse and energy absorption effect of the front wall plate, and by arranging the guide part, the full collapse and energy absorption of the energy-absorbing support can be realized, and the front part crash performance of the whole vehicle can be improved, so that the impact energy of the power assembly and the front wall intrusion amount during the collision can be reduced, the passenger survival space can be increased, and the safety performance of the whole vehicle can be improved.

[0017] In addition, the energy-absorbing support comprises two side plates and a top plate, and the guide part is arranged on each side plate, so that the energy-absorbing support is simple in structure, easy to manufacture and low in cost, and the collapse and energy absorption of the energy-absorbing support when subjected to the collision energy can be ensured. The guide part is formed by arranging the curved part on each side plate, and the curved part on each side plate is arranged in a plurality of intervals along the front-rear direction of the whole vehicle, and the cross section of the curved part is arc-shaped, so that the difficulty of directional collapse of the energy-absorbing support can be reduced, the energy-absorbing support can be guided to collapse layer by layer from front to back, the collision energy can be fully absorbed, and the energy absorption effect can be improved.

[0018] Secondly, the width of the energy-absorbing support in the left-right direction of the whole vehicle is gradually increased from front to back, which can guide the energy-absorbing support to collapse layer by layer from front to back, and improve the energy-absorbing effect. The rear end of each side plate is provided with a connecting flange connected with the front wall plate, which can improve the connecting strength between the side plate and the front wall plate, that is, improve the installation stability of the energy-absorbing support, and ensure the reliability of the energy-absorbing support. From the top-bottom direction of the whole vehicle, the middle part of the front wall lower cross beam is arranged to arch towards the front of the vehicle, and in the left-right direction of the whole vehicle, the cross-sectional area of the cavity is gradually increased from both ends to the middle part, which is beneficial to increase the energy-absorbing space, that is, increase the cavity, which is not only beneficial to improve the collision energy-absorbing effect of the front wall lower cross beam itself, but also convenient for the arrangement of the energy-absorbing support.

[0019] In addition, the front end of each side front engine longitudinal beam rear section connecting plate is connected with the front wall lower cross beam, and the rear end of each side front engine longitudinal beam rear section connecting plate is connected with the same side middle channel longitudinal beam, which can form a force transmission channel, ensure the smoothness of the force transmission below the middle channel, increase the structural strength of the front wall position of the vehicle, so as to avoid that the front wall plate deforms before the energy-absorbing support is fully energy-absorbed, which leads to insufficient energy absorption, and then facilitate the full collapse energy absorption of the energy-absorbing support. At the same time, the front end of each side connecting plate reinforcing beam extends to the front wall plate, and the rear end of each side connecting plate reinforcing beam is connected with the same side middle channel reinforcing beam, which can also form a force transmission channel, ensure the smoothness of the force transmission above the middle channel, and increase the structural strength of the front wall position of the vehicle, so as to avoid that the front wall plate deforms before the energy-absorbing support is fully energy-absorbed, which leads to insufficient energy absorption, and then facilitate the full collapse energy absorption of the energy-absorbing support.

[0020] Furthermore, the energy-absorbing supports are multiple and arranged in the cavity along the left-right direction of the whole vehicle, and each side connecting plate reinforcing beam is correspondingly arranged in front of and behind one of the energy-absorbing supports, which can enhance the structural strength of the front wall plate at the corresponding position of each energy-absorbing support, and facilitate the layer-by-layer collapse of each energy-absorbing support and full energy absorption. By arranging a front wall reinforcing beam corresponding to one of the side connecting plate reinforcing beams in front of and behind the front wall plate, the strength and rigidity of the front wall plate can be ensured, so as to avoid that the front wall plate deforms before the energy-absorbing support is fully energy-absorbed, which leads to insufficient energy absorption.

[0021] Another purpose of the utility model lies in providing a vehicle, wherein the vehicle is provided with the vehicle body front structure as described above.

[0022] The vehicle provided with the vehicle body front structure as described above can improve the energy-absorbing effect of the front part of the vehicle body, reduce the impact energy of the power assembly and the front wall intrusion amount during collision, increase the occupant survival space, and thus improve the safety performance of the whole vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0023] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of the front body structure according to an embodiment of the present utility model;

[0025] Figure 2 and Figure 3 for Figure 1 A schematic diagram of the structure shown in other perspectives;

[0026] Figure 4 This is a schematic diagram of the structure of the energy-absorbing bracket and the front panel assembled according to an embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of one of the structures of the energy-absorbing bracket described in an embodiment of the present utility model;

[0028] Figure 6 This is another structural schematic diagram of the energy-absorbing bracket described in this embodiment of the utility model;

[0029] Figure 7 for Figure 6 A schematic diagram of the structure shown in the image from another perspective;

[0030] Figure 8 This is a structural diagram illustrating the assembly of the lower front crossbeam and the front panel according to an embodiment of the present invention.

[0031] Figure 9 This is a structural schematic diagram showing the positional relationship between the energy-absorbing bracket and the connecting plate reinforcing beam according to an embodiment of the present invention;

[0032] Figure 10 This is a schematic diagram of the structure of the lower front crossbeam according to an embodiment of the present utility model;

[0033] Explanation of reference numerals in the attached figures:

[0034] 11. Front bulkhead; 12. Lower front bulkhead crossbeam; 120. Cavity; 121. Upper connecting edge; 122. Lower connecting edge; 123. Left connecting part; 124. Right connecting part;

[0035] 13. Lower front panel; 14. Front reinforcement beam; 15. Energy-absorbing bracket; 151. Side panel; 1511. Bending section; 1512. Connecting flange; 152. Top panel;

[0036] 16. Central channel connecting plate; 161. Connecting plate reinforcing beam;

[0037] 17, front cabin longitudinal beam rear section connecting plate; 18, front floor middle passage; 181, middle passage longitudinal beam; 182, middle passage reinforcing beam. DETAILED DESCRIPTION

[0038] 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.

[0039] In the following description, specific details are set forth in order to provide a thorough understanding of embodiments of the application. However, persons having ordinary skill in the art will appreciate that embodiments of the application can be practiced without the specific details, and that the present application is not limited to the details by the specific details.

[0040] 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 therefore cannot be understood as limiting the present application to a specific orientation, structure and operation. In addition, if the terms "first", "second" and the like appear, they are also used for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0041] For example, in the embodiments, the orientation words such as "upper", "lower", "left", "right", "front", "rear" are defined with reference to the up-down direction (also called height direction or overall vehicle Z direction), left-right direction (also called width direction or overall vehicle Y direction) and front-rear direction (also called length direction or overall vehicle X direction) of the vehicle. "Inner" and "outer" are defined with reference to the contour of the corresponding component, for example, "inner" and "outer" are defined with reference to the contour of the vehicle, the side close to the middle of the vehicle is "inner", and vice versa.

[0042] In addition, in the description of the present application, unless otherwise explicitly limited, the terms "mounting", "connection", "connecting", "connector" should be understood broadly. For example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or internal communication of 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.

[0043] The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0044] Embodiment One

[0045] The embodiment relates to a front body structure which is beneficial to solve the problem that the traditional front body area is insufficient in energy absorption during a collision and the power assembly invades the front wall easily.

[0046] As shown in the whole structure, Figures 1 to 10 the front body structure of the embodiment comprises a front wall plate 11 and a front wall lower cross beam 12. A cavity 120 is arranged along the left-right direction of the whole vehicle between the front wall lower cross beam 12 and the front wall plate 11, an energy absorption support 15 is arranged in the cavity 120 on the front wall plate 11, and a guide part is arranged on the energy absorption support 15 to guide the energy absorption support 15 to collapse and absorb energy along the front-rear direction of the whole vehicle.

[0047] At this time, as arranged above, based on the cooperation of the cavity 120 and the energy absorption support 15, further collapse and energy absorption are realized by adding the energy absorption support 15 on the basis of the energy absorption of the cavity 120, so as to improve the collapse and energy absorption effect at the front wall plate 11, and the guide part is arranged, which is beneficial to realize sufficient collapse and energy absorption of the energy absorption support 15, thereby improving the front collision performance of the whole vehicle, reducing the impact energy of the power assembly and the front wall invasion amount during the collision, increasing the occupant survival space, and improving the quality of the whole vehicle.

[0048] Based on the above whole introduction, in detail, in the embodiment, the front body structure further comprises a front wall upper cross beam arranged on the front wall plate 11, and the front wall upper cross beam is located above the front wall lower cross beam 12. Meanwhile, other related structure parts not mentioned in the front body structure of the embodiment can refer to the structures in the body structure known by those skilled in the art, and will not be described here.

[0049] In the embodiment, as a preferred implementation form, as shown in the figure, Figure 5 the energy absorption support 15 comprises two side plates 151 arranged oppositely in the left-right direction of the whole vehicle, and a top plate 152 connected between the front ends of the two side plates 151, and the guide part is arranged on each side plate 151. In this way, the energy absorption support 15 has a simple structure, is easy to manufacture and reduce costs, and is also beneficial to ensure that the energy absorption support 15 collapses and absorbs energy when subjected to collision energy.

[0050] In specific implementation, in the embodiment, as a preferred implementation form, the curved part 1511 is arranged on each side plate 151, the curved part 1511 is arranged along the up-down direction of the whole vehicle and constitutes the guide part. Meanwhile, the curved parts 1511 on the side plates 151 are arranged in the front-rear direction of the whole vehicle.

[0051] It is understandable that by setting curved portions 1511 on each side plate 151 to form a guide, and the curved portions 1511 on each side plate 151 being multiple and spaced apart along the front-rear direction of the vehicle, the difficulty of directional collapse of the energy-absorbing bracket 15 can be reduced, which is conducive to guiding the energy-absorbing bracket 15 to collapse layer by layer from front to back, so as to fully absorb the collision force and thus improve the energy absorption effect.

[0052] Furthermore, as a preferred embodiment, the cross-section of the curved portion 1511 is arc-shaped, which not only facilitates the forming of each side plate 151, but also facilitates the directional collapse of the energy-absorbing bracket 15, thereby facilitating the full absorption of the collision force by the energy-absorbing bracket 15.

[0053] Of course, the number of curved portions 1511 in this embodiment can be set and adjusted according to the collapse and energy absorption requirements of the side plate 151 and the energy-absorbing bracket 15. For example, the curved portions 1511 on each side plate 151 can be three or four evenly spaced along the front-rear direction of the vehicle. Moreover, if necessary, this embodiment can, based on the collapse and energy absorption requirements of each side plate 151 and the energy-absorbing bracket 15, only set multiple curved portions 1511 spaced along the front-rear direction of the vehicle, or only design the cross-section of the curved portions 1511 to be arc-shaped.

[0054] Meanwhile, in addition to the above-mentioned method of providing curved portions 1511 on each side plate 151 to achieve guided collapse, the guiding part of this embodiment can also be provided with collapse ribs on each side plate 151 to achieve the purpose of guided collapse. When using collapse ribs, the collapse ribs on each side plate 151 can also be like the curved portions 1511, with an arc-shaped cross-section, arranged along the vertical direction of the whole vehicle, and multiple ribs are arranged at intervals along the front-rear direction of the whole vehicle. It is only necessary to ensure that the setting of the collapse ribs can achieve the purpose of guiding the energy-absorbing bracket 15 to collapse in a directional manner.

[0055] The aforementioned energy-absorbing bracket 15 is preferably made of steel of type HC260YD+Z, which has the advantages of corrosion resistance, low yield strength, and easy collapse and deformation to absorb energy upon impact, in conjunction with the guide portion. Meanwhile, in this embodiment, the width and thickness of the bent portion 1511 (or the collapse rib) can be thinned or thickened according to the collapse requirements of the energy-absorbing bracket 15. Alternatively, collapse holes can be appropriately added to each side plate 151 according to the collapse requirements of the energy-absorbing bracket 15 to ensure the collapse energy absorption effect.

[0056] Furthermore, in this embodiment, as another preferred implementation of the energy-absorbing support 15, such as Figure 6 and Figure 7 As shown, the width of the energy-absorbing bracket 15 in the left-right direction of the vehicle gradually increases from front to back, so as to further guide the energy-absorbing bracket 15 to collapse layer by layer from front to back, thereby improving the energy absorption effect.

[0057] Further, as a preferred implementation form, in the embodiment, referring to Figures 4 to 6 As shown, the rear end of each side plate 151 is provided with a connecting flange 1512 connected to the front wall 11. In this way, the connection strength between the side plate 151 and the front wall 11 can be improved, that is, the mounting stability of the energy-absorbing support 15 is improved, and the reliability of the energy-absorbing support 15 is ensured.

[0058] Considering the structural strength of the front lower cross beam 12 and the spatial arrangement requirement of the energy-absorbing support 15, as a preferred implementation form, in the embodiment, as shown in Figure 3 As shown, from the top-down direction of the vehicle, the middle part of the front lower cross beam 12 is arranged to arch out towards the front of the vehicle, which can help to increase the energy-absorbing space, that is, to increase the cavity 120, which not only helps to improve the collision energy-absorbing effect of the front lower cross beam 12 itself, but also facilitates the arrangement of the energy-absorbing support 15.

[0059] At the same time, as a preferred implementation form in the embodiment, in the left-right direction of the vehicle, the cross-sectional area of the cavity 120 is gradually increased from both ends to the middle part. In this way, not only can the energy-absorbing support 15 have sufficient arrangement space, but also the cross-sectional area of the cavity 120 can be changed to optimize the structural strength of the front lower cross beam 12 and match the spatial arrangement requirement of the front side of the front wall 11.

[0060] In the embodiment, the effective width dimension of the cavity 120 in the front-rear direction of the vehicle (for example, the width dimension of the part of the cavity 120 corresponding to the energy-absorbing support 15) can be increased to 65mm when necessary, to ensure that the installation and arrangement space requirement of the energy-absorbing support 15 is met.

[0061] In addition, as a preferred implementation form in the embodiment, in combination with Figures 1 to 3 As shown, the front body structure of the embodiment further includes a middle channel connecting plate 16 located below the front wall 11, and a front lower plate 13 arranged on the left and right sides of the middle channel connecting plate 16, and the front wall 11 is connected to the front floor middle channel 18 through the middle channel connecting plate 16.

[0062] Specifically, the bottom of each side front lower plate 13 is provided with a front engine compartment longitudinal beam rear connecting plate 17, and the left and right sides of the bottom of the front floor middle channel 18 are respectively provided with a middle channel longitudinal beam 181, the front end of each side front engine compartment longitudinal beam rear connecting plate 17 is connected to the front lower cross beam 12, and the rear end of each side front engine compartment longitudinal beam rear connecting plate 17 is connected to the same side middle channel longitudinal beam 181.

[0063] The front end of each side front engine longitudinal beam rear section connecting plate is connected with the front wall lower cross beam 12, and the rear end of each side front engine longitudinal beam rear section connecting plate 17 is connected with the same side middle channel longitudinal beam 181, which can help form a force transmission channel, ensure the smoothness of force transmission below the middle channel, increase the structural strength of the front wall position of the vehicle, and avoid insufficient energy absorption of the energy absorption bracket 15 before deformation of the front wall plate 11 leading to insufficient energy absorption, thereby facilitating full collapse energy absorption of the energy absorption bracket 15.

[0064] In addition, in the embodiment, in combination with Figure 8 and Figure 10 As shown in the figure, as a preferred implementation form, the cross section of the front wall lower cross beam 12 is roughly arranged in the shape of a "J" character, and has a left connecting part 123 and a right connecting part 124 respectively located at the left and right ends thereof, wherein the left connecting part 123 is connected with the front end of the left side front engine longitudinal beam rear section connecting plate 17 by lap joint, and the right connecting part 124 is connected with the right side front engine longitudinal beam rear section connecting plate 17, so as to form a continuous force transmission channel between the front wall lower cross beam 12 and the two side front engine longitudinal beam rear section connecting plates 17, which is more conducive to the transmission of collision force to the rear of the vehicle, increases the structural strength of the front wall plate 11, and ensures full collapse energy absorption of the energy absorption bracket 15.

[0065] It should be noted here that, in order to better connect the front wall lower cross beam 12 and the two side front engine longitudinal beam rear section connecting plates 17, the left and right ends of the front wall lower cross beam 12 respectively extend downwardly. Moreover, the front wall lower cross beam 12 of the embodiment also has an upper connecting edge 121 and a lower connecting edge 122 which lap joint with the front wall plate 11, so as to ensure the connection stability of the front wall lower cross beam 12, and further enhance the structural strength of the front wall plate 11.

[0066] Meanwhile, in the embodiment, as a preferred implementation form, the left and right sides of the top of the middle channel connecting plate 16 are respectively provided with a connecting plate reinforcing beam 161, and the left and right sides of the top of the front floor middle channel 18 are respectively provided with a middle channel reinforcing beam 182. The front end of each side connecting plate reinforcing beam 161 extends to the front wall plate 11, and the rear end of each side connecting plate reinforcing beam 161 is connected with the same side middle channel reinforcing beam 182.

[0067] The front end of each side connecting plate reinforcing beam 161 extends to the front wall plate 11, and the rear end of each side connecting plate reinforcing beam 161 is connected with the same side middle channel reinforcing beam 182, which can also help form a force transmission channel, ensure the smoothness of force transmission above the middle channel, increase the structural strength of the front wall position of the vehicle, and avoid insufficient energy absorption of the energy absorption bracket 15 before deformation of the front wall plate 11 leading to insufficient energy absorption, thereby facilitating full collapse energy absorption of the energy absorption bracket 15.

[0068] In the embodiment, as a preferred implementation form, as shown in Figure 9As shown, a plurality of energy-absorbing brackets 15 are arranged at intervals in the left-right direction of the whole vehicle in the cavity 120, and each side connecting plate reinforcing beam 161 is arranged corresponding to one of the energy-absorbing brackets 15 in the front-rear direction. Thus, the structural strength of the corresponding positions of the front panel 11 corresponding to each energy-absorbing bracket 15 can be enhanced, which is conducive to realizing the progressive collapse of each energy-absorbing bracket 15 and fully absorbing energy.

[0069] It is worth mentioning that to ensure the connection effect between each connecting plate reinforcing beam 161 and the middle channel connecting plate 16, each connecting plate reinforcing beam 161 can be preferably set to have a "U" - shaped cross-section. Specifically, the left side of the left connecting plate reinforcing beam 161 can overlap on the left side wall of the middle channel connecting plate 16, and the right side of the left connecting plate reinforcing beam 161 can overlap on the top wall of the middle channel connecting plate 16. At this time, the left side of the right connecting plate reinforcing beam 161 can overlap on the top wall of the middle channel connecting plate 16, and the right side of the right connecting plate reinforcing beam 161 can overlap on the right side wall of the middle channel connecting plate 16. Similarly, each of the above-mentioned rear-section connecting plates 17 of the front engine compartment longitudinal beams, each middle channel longitudinal beam 181, and each middle channel reinforcing beam 182 can be preferably set to have a "U" - shaped cross-section to ensure stable connection with other surrounding mating components.

[0070] In addition, in this embodiment, as a preferred implementation form, still as Figure 2 shown, a front panel reinforcing beam 14 arranged in the up-down direction of the whole vehicle is provided on the front panel 11. The front panel reinforcing beam 14 is located on the side of the front panel 11 facing the rear of the whole vehicle and is arranged corresponding to one of the side connecting plate reinforcing beams 161 in the front-rear direction.

[0071] It can be understood that by providing the front panel reinforcing beam 14 corresponding to one of the side connecting plate reinforcing beams 161 on the front panel 11, the strength and stiffness of the front panel 11 can be ensured, so as to avoid the situation that the front panel 11 is deformed and the energy absorption is insufficient before the energy-absorbing bracket 15 fully absorbs energy.

[0072] The front body structure of this embodiment can facilitate the full progressive collapse and energy absorption of the energy-absorbing bracket 15, improve the energy absorption effect of the front panel 11 during collapse, and further improve the front collision performance of the whole vehicle, so as to reduce the impact energy of the powertrain and the intrusion amount of the front panel during collision, increase the survival space of the occupants, and thus improve the safety performance of the whole vehicle.

[0073] Embodiment Two

[0074] This embodiment relates to a vehicle, and the front body structure in Embodiment One is provided in this vehicle.

[0075] The vehicle of the embodiment can make the front part of the vehicle body have better collision energy absorption effect by arranging the front part structure of the vehicle body in the first embodiment, so as to reduce the impact energy of the power assembly and the front wall intrusion amount in the collision, increase the occupant survival space, thereby improving the overall vehicle quality and market competitiveness.

[0076] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A vehicle body front structure, characterized by comprising a front wall panel (11) and a front wall lower cross beam (12) ; a cavity (120) is formed between the front wall lower cross beam (12) and the front wall panel (11) and arranged along the left-right direction of the vehicle, and an energy absorption bracket (15) is arranged in the cavity (120) on the front wall panel (11), and a guide portion is arranged on the energy absorption bracket (15) to guide the energy absorption bracket (15) to collapse and absorb energy along the front-rear direction of the vehicle. 2.The vehicle body front structure according to claim 1, characterized in that the energy absorption bracket (15) comprises two side plates (151) arranged oppositely along the left-right direction of the vehicle, and a top plate (152) connected between the front ends of the two side plates (151), and the guide portion is arranged on each side plate (151). 3.The vehicle body front structure according to claim 2, characterized in that each side plate (151) is provided with a curved portion (1511) arched to one side, and the curved portion (1511) is arranged along the up-down direction of the vehicle and constitutes the guide portion. 4.The vehicle body front structure according to claim 2, characterized in that the width of the energy absorption bracket (15) along the left-right direction of the vehicle gradually increases from front to back; and / or the rear end of each side plate (151) is provided with a connecting flange (1512) connected to the front wall panel (11). 5.The vehicle body front structure according to claim 1, characterized in that, as viewed along the up-down direction of the vehicle, the middle part of the front wall lower cross beam (12) is arched to the front of the vehicle; and / or the cross-sectional area of the cavity (120) gradually increases from both ends to the middle part along the left-right direction of the vehicle. 6.The vehicle body front structure according to any one of claims 1 to 5, characterized by further comprising a middle tunnel connecting plate (16) arranged below the front wall panel (11), and front wall lower plates (13) arranged on both sides of the middle tunnel connecting plate (16), and the front wall panel (11) is connected to a front floor middle tunnel (18) through the middle tunnel connecting plate (16). 7.The vehicle body front structure according to claim 6, characterized in that the top of the middle tunnel connecting plate (16) is provided with connecting plate reinforcing beams (161) on both sides, and the top of the front floor middle tunnel (18) is provided with middle tunnel reinforcing beams (182) on both sides. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The front end of each side connecting plate reinforcement beam (161) extends to the front wall (11), and the rear end of each side connecting plate reinforcement beam (161) is connected to the same side middle channel reinforcement beam (182).

8. The vehicle body front structure according to claim 7, characterized in that: The energy-absorbing supports (15) are arranged in the cavity (120) in the left-right direction of the vehicle, and each side connecting plate reinforcement beam (161) is arranged in front of and behind one energy-absorbing support (15).

9. The vehicle body front structure according to claim 7, characterized in that: The front wall (11) is provided with a front wall reinforcement beam (14) arranged in the up-down direction of the vehicle, the front wall reinforcement beam (14) is located on the side of the front wall (11) facing the rear of the vehicle, and is arranged in front of and behind one side connecting plate reinforcement beam (161).

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

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