A vehicle front-end energy absorption module, a vehicle frame, and a vehicle

Abstract

The present invention relates to a vehicle front energy absorption module, a vehicle frame and a vehicle, which includes: a foam main body extending along its longitudinal direction; a plurality of front vertical ribs spaced apart along the longitudinal direction of the foam main body, and adjacent two of the front vertical ribs are connected by a front horizontal rib, and the front horizontal rib is also connected to the foam main body, so that adjacent two of the front vertical ribs, the corresponding front horizontal rib and the foam main body enclose a front groove; a limiting post for inserting a front bumper beam is arranged behind the foam main body. Since a plurality of front vertical ribs and front horizontal ribs are arranged on the foam main body, the rigidity of the energy absorption module can be improved, and the formed front groove is beneficial to improving the energy absorption effect. At the same time, by arranging the limiting post behind the foam main body, the front bumper beam can be inserted to install and fix the vehicle front energy absorption module, without additional installation structure, and the structure is simple and the assembly is convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle energy absorption, and particularly relates to a vehicle front-end energy absorption module, a vehicle frame, and a vehicle. Background Art

[0002] Currently, in order to meet the requirements of low-speed collision regulations and pedestrian protection collision safety performance indicators, a corresponding energy absorption device is generally designed at the front end of a vehicle. The overall structure of this energy absorption device is rigidly designed and needs to simultaneously meet sufficient rigid support and effective crushing energy absorption effect.

[0003] Based on the consideration of low-speed collision regulations and subjective evaluation feelings of pressing, the greater the rigidity of the energy absorption block, the better. In order to simultaneously ensure the lightweight requirement, in general, during the actual design process, it is only necessary to design according to the minimum limit value. However, for the energy absorption effect, if the rigidity of the energy absorption block is too high or too low, the energy absorption effect will be reduced. When the rigidity of the energy absorption block is generally at a certain intermediate balance value, the energy absorption effect is the best. How to achieve the rigidity of the energy absorption block approaching this balance value through reasonable material and structure design is the difficulty in the development of the vehicle front-end energy absorption device.

[0004] In related technologies, currently common energy absorption blocks generally have foam types and plastic types. The foam type energy absorption block needs to design a special structure to be clamped and fixed with the bumper and the anti-collision beam, and the plastic type energy absorption block needs to design a special structure for internal connection and external fixation, resulting in disadvantages such as complex installation structure, long assembly working hours, and high costs for the current energy absorption blocks.

[0005] Therefore, it is necessary to design a new vehicle front-end energy absorption module, vehicle frame, and vehicle to overcome the above problems. Summary of the Invention

[0006] Embodiments of the present invention provide a vehicle front-end energy absorption module, a vehicle frame, and a vehicle to solve the problems of complex installation structure, long assembly working hours, and high costs of the current energy absorption blocks in related technologies.

[0007] In a first aspect, a vehicle front-end energy absorption module is provided, which includes: a foam main body extending along its longitudinal direction; a plurality of front vertical ribs arranged at intervals along the longitudinal direction of the foam main body, and adjacent two of the front vertical ribs are connected by a front horizontal rib, and the front horizontal rib is also connected to the foam main body, so that adjacent two of the front vertical ribs and the corresponding front horizontal rib and the foam main body enclose a front groove; a limiting column for inserting a front anti-collision beam is arranged behind the foam main body.

[0008] In some embodiments, the width of the front vertical ribs in the front-to-back direction of the foam body is greater than the width of the front horizontal ribs in the front-to-back direction of the foam body; and the front vertical ribs are configured such that when the foam body is mounted to the front bumper beam through the limiting posts, a preset gap is formed between the front end of the front vertical ribs and the front bumper. With such a setting, while enhancing the stiffness of the vehicle front energy absorption module, the volume of the front groove is increased. At the same time, the preset gap formed between the front end of the front vertical ribs and the front bumper can, without adding additional fixing structures (such as fasteners, integrated buckles, adhesive tapes, etc.), through the cooperation of the front vertical ribs and the front bumper, combined with the cooperation of the limiting posts and the front bumper beam, ensure that the position of the vehicle front energy absorption module is secure and does not fall off during vehicle driving.

[0009] In some embodiments, the foam body is further provided with a plurality of rear vertical ribs, the plurality of rear vertical ribs are arranged at intervals in the longitudinal direction of the foam body, and adjacent two of the rear vertical ribs are connected by rear horizontal ribs, and the rear horizontal ribs are further connected to the foam body, so that adjacent two of the rear vertical ribs, the corresponding rear horizontal ribs, and the foam body enclose a rear groove.

[0010] In some embodiments, the width of the rear vertical ribs in the front-to-back direction of the foam body is equal to the width of the rear horizontal ribs in the front-to-back direction of the foam body; at least part of the connection between the rear horizontal ribs and the rear vertical ribs forms a support portion, and the limiting post is fixedly arranged on the support portion.

[0011] In some embodiments, the rear vertical ribs are correspondingly arranged at the middle position of the front groove.

[0012] In some embodiments, the distance between adjacent two of the rear vertical ribs is equal to twice the width of the front groove in the extending direction of the foam body.

[0013] In some embodiments, the width L2 of the front horizontal ribs in the front-to-back direction of the foam body and the width L1 of the rear vertical ribs and the rear horizontal ribs in the front-to-back direction of the foam body are repeatedly optimized and verified according to the vehicle front energy absorption space S, the wall thickness of the foam body, the size of the preset gap between the front vertical ribs and the front bumper, and the CAE simulation results.

[0014] In some embodiments, the width W1 of the front groove in the extending direction of the foam body is repeatedly optimized and verified according to the vehicle front energy absorption space S and the CAE simulation results.

[0015] In a second aspect, a vehicle frame is provided, which includes: a front anti-collision beam, at the front end of which the above-mentioned vehicle front-end energy absorption module is installed; and a front bumper, which is arranged on a side of the vehicle front-end energy absorption module away from the front anti-collision beam, and a preset gap is formed between the front bumper and the front vertical ribs of the vehicle front-end energy absorption module.

[0016] In a third aspect, a vehicle is provided, which includes a vehicle frame, and the vehicle frame includes: a front anti-collision beam, at the front end of which the above-mentioned vehicle front-end energy absorption module is installed; and a front bumper, which is arranged on a side of the vehicle front-end energy absorption module away from the front anti-collision beam, and a preset gap is formed between the front bumper and the front vertical ribs of the vehicle front-end energy absorption module.

[0017] The beneficial effects brought by the technical solution provided by the present invention include:

[0018] In an embodiment of the present invention, a vehicle front-end energy absorption module, a vehicle frame and a vehicle are provided. Since a plurality of front vertical ribs and front horizontal ribs are arranged on the foam main body, the rigidity of the energy absorption module can be improved, and the formed front groove is beneficial to improving the energy absorption effect. At the same time, by arranging a limiting post behind the foam main body, it can be inserted into the front anti-collision beam to install and fix the vehicle front-end energy absorption module. Therefore, only the limiting post is needed for installation, without additional installation structures (such as fasteners, integrated buckles, adhesive tapes, etc.), the structure is simple, the assembly is convenient, and at the same time, the assembly working hours and costs can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 FIG. is a three-dimensional structural schematic diagram of a vehicle front-end energy absorption module provided by an embodiment of the present invention;

[0021] Figure 2 FIG. is a three-dimensional structural schematic diagram of a vehicle front-end energy absorption module provided by an embodiment of the present invention;

[0022] Figure 3 FIG. is a sectional structural schematic diagram of a vehicle front-end energy absorption module provided by an embodiment of the present invention;

[0023] Figure 4 FIG. is a front view schematic diagram of a vehicle front-end energy absorption module provided by an embodiment of the present invention;

[0024] Figure 5 ForFigure 4 Schematic cross-sectional view along A-A in [the figure];

[0025] Figure 6 is Figure 4 Schematic cross-sectional view along B-B in [the figure].

[0026] In the figure:

[0027] 1. Foam main body; 11. Front vertical ribs; 12. Front horizontal ribs; 13. Front grooves; 14. Limit posts; 15. Rear vertical ribs; 16. Rear horizontal ribs; 17. Rear grooves; 18. Support part;

[0028] 2. Front anti-collision beam; 3. Front bumper. Specific embodiments

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0030] The energy-absorbing blocks in the related art have drawbacks such as complex installation structures, long assembly working hours, and high costs. In addition, with the strong development trend of vehicle electrification and the increasingly stringent requirements for pedestrian protection safety indicators, the current solutions do not adequately consider the lightweight design and rigid adjustable design of the vehicle front-end energy-absorbing device, resulting in limited applicability.

[0031] The embodiments of the present invention provide a vehicle front-end energy-absorbing module, which can solve the problems of complex installation structure, long assembly working hours, and high cost of the current energy-absorbing blocks in the related art.

[0032] See Figure 1As shown in the figure, a vehicle front-end energy absorption module provided by an embodiment of the present invention may include: a foam main body 1, which extends along its longitudinal direction. That is to say, the vehicle front-end energy absorption module in this embodiment can be formed by EPP foaming and can adopt an integrated foam structure. The use of the foam structure helps to lighten the weight of the energy absorption module and can improve the energy absorption effect. The longitudinal direction in this embodiment is also the left-right direction of the vehicle; a plurality of front vertical ribs 11, and the plurality of front vertical ribs 11 are arranged at intervals along the longitudinal direction of the foam main body 1. The front vertical ribs 11 can extend in the vertical direction. Among them, the interval distance between each of the front vertical ribs 11 can be designed according to the actual situation or needs, and adjacent two of the front vertical ribs 11 are connected by a front horizontal rib 12. The front horizontal rib 12 is also connected to the foam main body 1, so that adjacent two of the front vertical ribs 11 and the corresponding front horizontal rib 12 and the foam main body 1 enclose a front groove 13. That is to say, not only the front vertical ribs 11 are provided on the front side of the foam main body 1, but also the front horizontal rib 12 is provided. The rear ends of the front horizontal rib 12 and the front vertical ribs 11 can be integrally connected to the foam main body 1, and the opposite sides of the front horizontal rib 12 can be respectively connected to the front vertical ribs 11. At the same time, the upper and lower ends of each of the front vertical ribs 11 can be provided with the front horizontal rib 12, so that adjacent two of the front vertical ribs 11 and two of the front horizontal ribs 12 and the foam main body 1 enclose the front groove 13; and, a limiting post 14 for inserting the front bumper beam 2 can be further provided behind the foam main body 1.

[0033] Preferably, the front bumper beam 2 can be provided with a limiting hole corresponding to the limiting post 14. The vehicle front-end energy absorption module is assembled between the front bumper 3 and the front bumper beam 2. The vehicle front-end energy absorption module is fixed by inserting the limiting posts 14 arranged on the left and right sides of the rear part of the foam main body 1 into the limiting holes. Among them, to ensure that the vehicle front-end energy absorption module can be reliably pre-hung on the front bumper beam 2 without flipping and falling off before the vehicle installs the front bumper 3, the center of the limiting hole can be set in the height h area 1 / 3 downward from the top surface of the front bumper beam 2 (where h is the total height of the front bumper beam 2). At the same time, the diameter of the limiting post 14 can be designed so that the unilateral interference amount with the limiting hole is 1 mm, and the insertion depth of the limiting post 14 is preferably designed to be 25 mm - 30 mm.

[0034] In this embodiment, since a plurality of front vertical ribs 11 and front horizontal ribs 12 are provided on the foam main body 1, the mutually connected front vertical ribs 11 and front horizontal ribs 12 can enhance the rigidity of the energy absorption module, and the formed front groove 13 is beneficial to enhancing the energy absorption effect. At the same time, by arranging a limiting post 14 behind the foam main body 1, the limiting post 14 can be inserted into the front bumper beam 2 to install and fix the vehicle front end energy absorption module. Therefore, only the limiting post 14 is used for installation, and no additional installation structures (such as fasteners, integrated buckles, adhesive tapes, etc.) are required inside and outside the vehicle front end energy absorption module. The structure is simple and the assembly is convenient, and at the same time, the assembly working hours and costs can be reduced.

[0035] Moreover, the structural design parameters of the vehicle front end energy absorption module can be adjusted accordingly in the early stage of design according to the vehicle front end rigidity index, energy absorption index, and lightweight target requirements. Without adding additional structures and incurring additional costs, the performance balance (all indicators meet the corresponding requirement ranges simultaneously) can be effectively achieved and different vehicle models can be adapted.

[0036] In some embodiments, as shown in Figure 1 the width of the front vertical rib 11 in the front-rear direction of the foam main body 1 is greater than the width of the front horizontal rib 12 in the front-rear direction of the foam main body 1; and the front vertical rib 11 is configured such that when the foam main body 1 is installed on the front bumper beam 2 through the limiting post 14, a preset gap is formed between the front end of the front vertical rib 11 and the front bumper 3. With such a setting, while enhancing the stiffness of the vehicle front end energy absorption module, the volume of the front groove 13 is increased. At the same time, the preset gap formed between the front end of the front vertical rib 11 and the front bumper 3 can, without adding additional fixing structures (such as fasteners, integrated buckles, adhesive tapes, etc.), through the cooperation of the front vertical rib 11 and the front bumper 3, combined with the cooperation of the limiting post 14 and the front bumper beam 2, ensure that the position of the vehicle front end energy absorption module is firm and does not fall off during vehicle driving. In this embodiment, it is preferably designed that the front vertical rib 11 and the skin of the front bumper 3 have a clearance fit of 5 mm, that is, the preset gap is 5 mm. Of course, in actual design and use, the preset gap can also be designed as other values according to actual needs.

[0037] Furthermore, in some alternative embodiments, as shown in Figure 2As shown, the foam body 1 may also be provided with a plurality of rear vertical ribs 15. The rear vertical ribs 15 may extend in the vertical direction. The plurality of rear vertical ribs 15 are arranged at intervals along the longitudinal length of the foam body 1, that is, arranged at intervals along the left-right direction along the foam body 1. And adjacent two of the rear vertical ribs 15 are connected by a rear horizontal rib 16. The rear horizontal rib 16 may extend horizontally in the horizontal direction. The rear horizontal rib 16 is also connected to the foam body 1, so that adjacent two of the rear vertical ribs 15 and the corresponding rear horizontal rib 16 and the foam body 1 enclose a rear groove 17. That is to say, not only the rear vertical ribs 15 are provided on the rear side of the foam body 1, but also the rear horizontal ribs 16 are provided. The rear ends of the rear horizontal ribs 16 and the rear vertical ribs 15 can be integrally connected to the foam body 1, and the opposite sides of the rear horizontal rib 16 can be respectively connected to the rear vertical ribs 15. At the same time, the upper and lower ends of each rear vertical rib 15 may be provided with rear horizontal ribs 16, so that adjacent two rear vertical ribs 15 and two rear horizontal ribs 16 and the foam body 1 enclose a rear groove 17. In this embodiment, the rear groove 17 is preferably a rectangular structure. Of course, in other embodiments, the rear groove 17 may also be designed into other structural shapes. By providing the rear vertical ribs 15 and the rear horizontal ribs 16 in this embodiment, the rigidity of the vehicle front-end energy absorption module can be further enhanced, and the formed rear groove 17 can further enhance the energy absorption effect of the vehicle front-end energy absorption module.

[0038] In some embodiments, referring to Figure 2As shown, the width of the rear vertical rib 15 in the front-rear direction of the foam main body 1 is equal to the width of the rear horizontal rib 16 in the front-rear direction of the foam main body 1. With such a setting, the rear end faces of the rear vertical rib 15 and the rear horizontal rib 16 can be in the same plane. In this embodiment, the foam main body 1 is an arc-shaped structure. Therefore, the plane formed by the rear vertical rib 15 and the rear horizontal rib 16 is also an arc surface. Setting the rear end faces of the rear vertical rib 15 and the rear horizontal rib 16 on the same arc surface enables the rear vertical rib 15 and the rear horizontal rib 16 to both remain in contact with the front bumper beam 2 after the vehicle front-end energy-absorbing module is installed on the front bumper beam 2, resulting in a relatively large contact area between the vehicle front-end energy-absorbing module and the front bumper beam 2, which is beneficial for collision; at least part of the connection between the rear horizontal rib 16 and the rear vertical rib 15 forms a support portion 18, and the limit post 14 is fixedly arranged on the support portion 18. In this embodiment, the support portion 18 is arranged at the corner of the rear horizontal rib 16 and the rear vertical rib 15, and the support portion 18 protrudes from the rear end face of the foam main body 1. By arranging the limit post 14 on the support portion 18, when the foam main body 1 is installed on the front bumper beam 2, the limit post 14 can be designed to be shorter. Because without the support portion 18, the limit post 14 may need to extend to the rear end face of the foam main body 1. With the support portion 18, the limit post 14 can directly extend rearward from the support portion 18, which can shorten the length of the limit post 14, and further enable the limit post 14 to be inserted into the front bumper beam 2 more stably, providing a more stable support for the vehicle front-end energy-absorbing module.

[0039] Preferably, as shown in Figure 4 and Figure 5 As shown, the rear vertical rib 15 can be correspondingly arranged at the middle position of the front groove 13. With such a setting, the position with weak stiffness corresponding to the front groove 13 can be reinforced to enhance rigidity, and arranging it in the middle can increase the energy-absorbing compression distance during the collision process, which is generally beneficial for improving the energy-absorbing effect of the part. Of course, in other embodiments, the rear vertical rib 15 can also be arranged at other positions of the foam main body 1.

[0040] On the basis of the above technical solution, further, the distance between two adjacent rear vertical ribs 15 is equal to twice the width of the front groove 13 along the extension direction of the foam body 1. That is, each rear vertical rib 15 is arranged at the middle position of a certain front groove 13, and there is a complete front groove 13 between two adjacent rear vertical ribs 15. Instead of arranging a rear vertical rib 15 at the middle position of each front groove 13, a rear vertical rib 15 is arranged every other front groove 13. With such an arrangement, the density of the rear vertical ribs 15 will not be too high, avoiding excessive rigidity; and the spaced arrangement is beneficial to the prior crushing of the rear vertical ribs 15 and the rear horizontal ribs 16 when a collision occurs, increasing the compression distance. (Conversely, if the front horizontal ribs 12 and the front vertical ribs 11 are crushed first, although the compression distance is increased, this crushing will cause stress concentration in the area near the collision interface, which is not conducive to energy absorption).

[0041] In some embodiments, referring to Figure 3 as shown, the vehicle front-end energy absorption space is assumed to be S (the vehicle front-end energy absorption space S is restricted by the styling and platform layout and generally cannot be adjusted, and its value is generally 80 mm - 120 mm). Referring to Figure 5 and Figure 6 as shown, the width L2 of the front horizontal rib 12 in the front-rear direction of the foam body 1 and the widths L1 of the rear vertical rib 15 and the rear horizontal rib 16 in the front-rear direction of the foam body 1 are obtained by repeatedly optimizing and checking according to the vehicle front-end energy absorption space S, the wall thickness of the foam body 1, the size of the preset gap between the front vertical rib 11 and the front bumper 3, and the CAE simulation results. Among them, the initial value of L1 = (S - 5 mm - 20 mm) / 2, and the final value is locked by repeatedly optimizing and checking according to the CAE simulation results. The 5 mm in the formula is the size of the preset gap between the front vertical rib and the front bumper, and the 20 mm is the wall thickness of the foam body 1. The adjustable range of the adjustable parameter L2 is from 0 mm to (S - L1 - 5 - 20) mm, the 5 mm is also the size of the preset gap between the front vertical rib and the front bumper, and the 20 mm is the wall thickness of the foam body 1.

[0042] In some alternative embodiments, the vehicle front-end energy absorption space is assumed to be S (the vehicle front-end energy absorption space S is restricted by the styling and platform layout and generally cannot be adjusted, and its value is generally 80 mm - 120 mm). Referring to Figure 5 as shown, the width W1 of the front groove 13 along the extension direction of the foam body 1 is obtained by repeatedly optimizing and checking according to the vehicle front-end energy absorption space S and the CAE simulation results. Among them, the initial value of W1 is generally preset according to experience. For example, when S = 80 mm, we generally also set the initial value to 80 mm. The larger S is, the appropriately smaller the initial value of W1 is, and vice versa. The final value is locked by repeatedly optimizing and checking according to the CAE simulation results.

[0043] In one embodiment, during the vehicle design phase, the following parameter changes can be made to change the overall structural rigidity of the front energy absorption module of the vehicle. Combined with computer-aided analysis (CAE) tools, after multiple rounds of setting, adjustment, and optimization verification, an optimal rigid design solution can be obtained as the final design solidification solution. The rigidity result of the solidification solution meets the low-speed collision regulations and the minimum limit of the pressure evaluation feeling, while approaching the optimal energy absorption utility rigidity balance value, thereby ultimately achieving a balance between rigidity indicators, energy absorption indicators, and lightweight indicators.

[0044] 1) The foaming ratio of the EPP material of the foam body 1 is adjustable (the adjustment range is 20 times to 45 times. The industry generally gives priority to three common parameters of 20 times, 30 times and 45 times for the convenience of industrial cost control). The greater the foaming ratio of the material, the lower the overall rigidity of the vehicle's front-end energy absorption module and the better the lightweight effect.

[0045] 2) If Figure 5 As shown, the wall thickness of the foam body 1 of the vehicle front end energy absorption module is 20 mm. Of course, the wall thickness of other structures such as the front vertical ribs 11, the front transverse ribs 12, the rear vertical ribs 15, and the rear transverse ribs 16 may also be preferably 20 mm. The width of the rear vertical ribs 15 and the rear transverse ribs 16 along the front and rear directions of the foam body 1 is an adjustable parameter L1 (with an adjustment range of 0-60 mm). The larger the value of L1, the lower the overall rigidity of the vehicle front end energy absorption module and the better the lightweight effect.

[0046] 3) If Figure 3 As shown, the front energy absorption space of the vehicle is assumed to be S (the front energy absorption space S of the vehicle is constrained by the shape and platform layout and generally cannot be adjusted. Its value is generally 80mm-120mm). Figure 6 As shown, the width of the front transverse rib 12 along the front-to-rear direction of the foam body 1 is an adjustable parameter L2 [the adjustment range is 0 mm to (S-L1-25) mm]. The smaller the L2 value is, the lower the overall rigidity of the vehicle front end energy absorption module is, and the better the lightweight effect is.

[0047] 4) If Figure 5 As shown, the rear vertical rib 15 of the vehicle front energy absorption module is arranged in the middle of the front groove 13, and an interval arrangement scheme is adopted (one rear vertical rib 15 is arranged for every one front groove 13). The width of the front groove 13 along the extension direction of the foam body 1 is an adjustable parameter W1 (its adjustment range is generally 30-120mm). The larger the value of W1, the lower the overall rigidity of the vehicle front energy absorption module and the better the lightweight effect.

[0048] Based on the parametric design concept, a design solution for a rigidly adjustable vehicle front energy absorption module is provided. By setting reasonable parameters, it can not only meet the minimum limit of the rigidity of the vehicle front energy absorption device, but also achieve performance balance (rigidity index, energy absorption index, lightweight index). At the same time, there is no additional installation structure (such as fasteners, integrated buckles, adhesive tapes, etc.) inside and outside the vehicle front energy absorption module, with simple structure, convenient assembly and low cost.

[0049] An embodiment of the present invention further provides a vehicle frame, which may include: a front anti-collision beam 2, and the front end of the front anti-collision beam 2 is installed with the above-mentioned vehicle front energy absorption module; and a front bumper 3, the front bumper 3 is disposed on a side of the vehicle front energy absorption module away from the front anti-collision beam 2, and a preset gap is formed between the front bumper 3 and the front vertical rib 11 of the vehicle front energy absorption module.

[0050] Among them, the vehicle front energy absorption module may include: a foam main body 1, the foam main body 1 extends along its longitudinal direction. That is to say, the vehicle front energy absorption module in this embodiment can be formed by EPP foaming and can adopt an integral foam structure. Adopting a foam structure helps to lightweight the energy absorption module and can improve the energy absorption effect; the longitudinal direction in this embodiment is also the left-right direction of the vehicle; a plurality of front vertical ribs 11, the plurality of front vertical ribs 11 are arranged at intervals along the longitudinal direction of the foam main body 1, and the front vertical ribs 11 can extend in the vertical direction. Among them, the interval distance between each of the front vertical ribs 11 can be designed according to the actual situation or needs, and adjacent two of the front vertical ribs 11 are connected by a front horizontal rib 12, and the front horizontal rib 12 is also connected to the foam main body 1, so that adjacent two of the front vertical ribs 11 and the corresponding front horizontal rib 12 and the foam main body 1 enclose a front groove 13. That is to say, not only the front vertical ribs 11 are provided on the front side of the foam main body 1, but also the front horizontal rib 12 is provided. The rear ends of the front horizontal rib 12 and the front vertical ribs 11 can be integrally connected to the foam main body 1, and the opposite sides of the front horizontal rib 12 can be respectively connected to the front vertical ribs 11. At the same time, the upper and lower ends of each front vertical rib 11 can be provided with front horizontal ribs 12, so that adjacent two front vertical ribs 11 and two front horizontal ribs 12 and the foam main body 1 enclose a front groove 13; and a limiting column 14 for inserting into the front anti-collision beam 2 can be further provided behind the foam main body 1.

[0051] Preferably, the front bumper beam 2 may be provided with limit holes corresponding to the limit posts 14. The vehicle front end energy absorption module is assembled between the front bumper 3 and the front bumper beam 2. The vehicle front end energy absorption module is fixed by inserting the limit posts 14 arranged on the left and right sides of the rear part of the foam body 1 into the limit holes. Among them, to ensure that the vehicle front end energy absorption module can be reliably pre-hung on the front bumper beam 2 without flipping or falling off before the vehicle installs the front bumper 3, the center of the limit hole can be set in the height h area 1 / 3 downward from the top surface of the front bumper beam 2 (where h is the total height of the front bumper beam 2). At the same time, the diameter of the limit post 14 can be designed so that the unilateral interference amount with the limit hole is 1 mm, and the insertion depth of the limit post 14 is preferably designed to be 25 mm - 30 mm.

[0052] An embodiment of the present invention further provides a vehicle, which may include a vehicle frame. The vehicle frame may include: a front bumper beam 2, and the front end of the front bumper beam 2 is installed with the above-mentioned vehicle front end energy absorption module; and a front bumper 3, the front bumper 3 is arranged on the side of the vehicle front end energy absorption module away from the front bumper beam 2, and a preset gap is formed between the front bumper 3 and the front vertical rib 11 of the vehicle front end energy absorption module.

[0053] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation to the present invention. Unless otherwise clearly specified and defined, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] It should be noted that in the present invention, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0055] The above are only specific embodiments of the present invention, which enable those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features claimed herein.

Claims

1. A vehicle front-end energy absorption module, characterized in that, It includes: A foam main body (1) that extends along its longitudinal length; A plurality of front vertical ribs (11), the plurality of front vertical ribs (11) are arranged at intervals along the longitudinal length of the foam main body (1), and adjacent two of the front vertical ribs (11) are connected by a front horizontal rib (12), and the front horizontal rib (12) is also connected to the foam main body (1), so that adjacent two of the front vertical ribs (11) and the corresponding front horizontal rib (12), the foam main body (1) enclose a front groove (13); A limiting column (14) for inserting a front anti-collision beam (2) is arranged behind the foam main body (1); The width of the front vertical rib (11) in the front-back direction of the foam main body (1) is greater than the width of the front horizontal rib (12) in the front-back direction of the foam main body (1); and the front vertical rib (11) is configured such that when the foam main body (1) is installed on the front anti-collision beam (2) through the limiting column (14), a preset gap is formed between the front end of the front vertical rib (11) and the front bumper (3); The foam main body (1) is further provided with a plurality of rear vertical ribs (15), and the plurality of rear vertical ribs (15) are arranged at intervals along the longitudinal length of the foam main body (1); The rear vertical ribs (15) are correspondingly arranged at the middle positions of the front grooves (13).

2. The vehicle front-end energy absorption module according to claim 1, characterized in that: Adjacent two of the rear vertical ribs (15) are connected by a rear horizontal rib (16), and the rear horizontal rib (16) is also connected to the foam main body (1), so that adjacent two of the rear vertical ribs (15) and the corresponding rear horizontal rib (16), the foam main body (1) enclose a rear groove (17).

3. The vehicle front-end energy absorption module according to claim 2, characterized in that: The width of the rear vertical rib (15) in the front-back direction of the foam main body (1) is equal to the width of the rear horizontal rib (16) in the front-back direction of the foam main body (1); At least part of the connection part between the rear horizontal rib (16) and the rear vertical rib (15) forms a support part (18), and the limiting column (14) is fixedly arranged on the support part (18).

4. The vehicle front-end energy absorption module according to claim 1, characterized in that: The distance between adjacent two of the rear vertical ribs (15) is equal to twice the width of the front groove (13) in the extending direction of the foam main body (1).

5. The vehicle front-end energy absorption module according to claim 2, characterized in that: The width L2 of the front horizontal rib (12) in the front-back direction of the foam main body (1) and the width L1 of the rear vertical rib (15) and the rear horizontal rib (16) in the front-back direction of the foam main body (1) are obtained by repeatedly optimizing and checking according to the vehicle front-end energy absorption space S, the wall thickness of the foam main body (1), the size of the preset gap between the front vertical rib (11) and the front bumper (3), and the CAE simulation results.

6. The vehicle front-end energy absorption module according to claim 1, characterized in that: The width W1 of the front groove (13) along the extending direction of the foam body (1) is obtained by repeatedly optimizing and checking according to the front-end energy absorption space S of the vehicle and the CAE simulation results.

7. A vehicle frame, characterized in that, It includes: A front bumper beam (2), and the front end of the front bumper beam (2) is installed with a vehicle front-end energy absorption module as described in any one of claims 1-6; And a front bumper (3), and the front bumper (3) is arranged on the side of the vehicle front-end energy absorption module away from the front bumper beam (2).

8. A vehicle, characterized in that, It includes a vehicle frame as described in claim 7.

Images