Automobile front anti-collision beam and assembly

Abstract

The utility model discloses an automobile front anti-collision cross beam which comprises a cross beam body, a front panel of the cross beam body extends downwards to form a lower vertical plate portion used for increasing the collision contact area, and an avoiding notch used for avoiding an air inlet area of a radiator at the front end of an automobile is formed in the lower vertical plate portion. The utility model further discloses an automobile front anti-collision beam assembly which comprises the automobile front anti-collision beam and energy absorption boxes arranged at the two ends of the beam body respectively. According to the automobile front anti-collision beam and the assembly structure, on the premise that the heat dissipation capacity of a radiator at the front end of an automobile is not affected, the SD value of a barrier is reduced, and the evaluation score of a new automobile is improved; and meanwhile, the light-weight design of the whole vehicle can be taken into consideration.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile anti-collision beam, specifically relates to a front anti-collision cross beam and assembly of automobile. BACKGROUND

[0002] With C-NCAP (China-New Car Assessment Program, China new car evaluation regulation) MDPB (Mobile Progressive Deformable Barrier, gradual approach type deformable mobile barrier) condition is included in new car evaluation regulation, the structure design of automobile front anti-collision cross beam is higher requirement.The front anti-collision cross beam assembly is important energy-absorbing component of automobile frontal crash MPDB condition, and the collision contact area and strength have great influence on MPDB.In general, the automobile front anti-collision cross beam body is generally small, and the collision contact area is relatively small when colliding, so that the MPDB condition barrier SD (Standard Deviation, barrier deformation amount standard deviation) value is higher, and the penalty is more.In the prior art, the evaluation score is generally improved by appropriately increasing the cross-sectional size of the front anti-collision cross beam body.However, the radiator of the front end of the automobile needs to be considered in the design of part of the vehicle, and the way of directly and simply increasing the cross-sectional size of the front anti-collision cross beam body will block the air inlet of the radiator to some extent, resulting in a decrease in the air inlet uniformity and air inlet amount of the radiator, and a decrease in the heat dissipation capacity;At the same time, the way of directly increasing the cross-sectional size of the beam body, the weight of the anti-collision beam is large, which is not conducive to the lightweight design of the vehicle.

[0003] Therefore, it is necessary to provide a new automobile front anti-collision cross beam structure, which is expected to reduce the barrier SD value and improve the new car evaluation score without affecting the heat dissipation capacity of the radiator of the front end of the automobile;At the same time, it is beneficial to consider the lightweight design of the vehicle. UTILITY MODEL CONTENT

[0004] Therefore, it is necessary to provide a new automobile front anti-collision cross beam structure, which is expected to reduce the barrier SD value and improve the new car evaluation score without affecting the heat dissipation capacity of the radiator of the front end of the automobile;At the same time, it is beneficial to consider the lightweight design of the vehicle.

[0005] To achieve the above object, the utility model provides the following technical scheme: a front anti-collision cross beam of automobile, including the cross beam body, the front panel of the cross beam body extends downward and forms a lower vertical plate part for increasing the collision contact area, and the lower vertical plate part is provided with an avoidance gap for avoiding the air inlet area of the radiator of the front end of the automobile.

[0006] Further, the front panel of the beam body extends upward to form an upper vertical plate part for increasing the collision contact area.

[0007] Further, the avoiding gap is open at the bottom and flares at the lower part to the two lateral sides.

[0008] Further, the top edge of the avoiding gap is flush with the bottom surface of the beam body.

[0009] Further, the back surface of the upper vertical plate part is provided with an upper inclined brace plate, one end of the upper inclined brace plate is fixed on the upper vertical plate part, and the other end of the upper inclined brace plate is fixed on the top surface of the beam body; the back surface of the lower vertical plate part is provided with a lower inclined brace plate, one end of the lower inclined brace plate is fixed on the lower vertical plate part, and the other end of the lower inclined brace plate is fixed on the bottom surface of the beam body.

[0010] Further, the ratio of the height value of the upper vertical plate part to the height value of the beam body ranges from 1 / 3 to 1 / 2; and the ratio of the height value of the lower vertical plate part to the height value of the beam body ranges from 1 / 3 to 1 / 2.

[0011] Further, the upper vertical plate part is respectively provided with an inclined flared part at both ends in the length direction.

[0012] Further, the upper vertical plate part, the lower vertical plate part and the beam body are integrally formed.

[0013] Further, the beam body is an arc-shaped beam, and the cross section of the beam body is in the shape of an eye.

[0014] The utility model also provides a front anti-collision beam assembly of an automobile, which comprises the front anti-collision beam of an automobile as described above and further comprises energy absorption boxes arranged at two ends of the beam body.

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

[0016] The automobile front anti-collision cross beam structure provided by the utility model can reduce the barrier SD value and improve the new car evaluation score without affecting the heat dissipation capacity of the automobile front end radiator, and can also take into account the lightweight design of the whole vehicle. Specifically, the lower vertical plate part arranged on the front panel of the cross beam body can increase the collision contact area when the front anti-collision cross beam collides, has good buffering and absorption effect on the collision force, is beneficial to dispersing the transmission of the collision force, thereby reducing the MPDB working condition barrier SD value and improving the new car evaluation score; the avoiding gap arranged on the lower vertical plate part for avoiding the air inlet area of the automobile front end radiator can not affect the air inlet amount and air inlet uniformity of the original automobile front end radiator; meanwhile, the front anti-collision cross beam uses less material, and the lightweight design of the whole vehicle can be taken into account; in addition, the structure design does not need to change the arrangement position of the cross beam body on the whole vehicle, and the change design cost of the existing vehicle model can be reduced.

[0017] The automobile front anti-collision cross beam assembly structure provided by the utility model adds the lower vertical plate part on the front of the cross beam body, effectively increases the collision contact area when the front anti-collision cross beam collides, is beneficial to realizing the step-by-step crushing of the energy absorption box from front to back, can effectively improve the collision performance of the anti-collision beam assembly, reduce the MPDB working condition barrier SD value, and improve the new car evaluation score; and is beneficial to taking into account the lightweight design of the whole vehicle.

[0018] Other advantages, objects, and features of the present utility model will be explained in the following description, and to some extent, will be obvious to those skilled in the art based on the following study, or can be taught from the practice of the present utility model. The objects and other advantages of the present utility model can be realized and obtained through the following description. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is an isometric structural schematic view of an embodiment of the present utility model;

[0020] Figure 2 It is a front view structural schematic view of an embodiment of the present utility model;

[0021] Figure 3 It is Figure 2 It is a sectional structural schematic view of A-A;

[0022] Figure 4 It is Figure 2 It is a sectional structural schematic view of B-B;

[0023] Reference signs: 1-front anti-collision cross beam; 101-cross beam body; 102-upper vertical plate part; 102a-inclined opening part; 103-lower vertical plate part; 103a-avoiding gap; 104-upper inclined support plate; 105-lower inclined support plate; 2-energy absorption box. Detailed Implementation

[0024] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that the illustrations provided in the following embodiments are only for illustrating the basic concept of this utility model. Unless otherwise specified, the following embodiments and features in the embodiments can be combined with each other.

[0025] Please see Figures 1-4 This embodiment discloses a front anti-collision beam for automobiles, including a beam body 101. The front panel of the beam body 101 extends downward to form a lower vertical plate portion 103 for increasing the collision contact area. The lower vertical plate portion 103 is provided with a region for avoiding the air intake area of ​​the front radiator of the automobile (see...). Figure 2 The clearance notch 103a is located in the lower part of the dashed box area. It can be understood that the side of the crossbeam body 101 facing the front of the vehicle is its front panel, which is the collision contact surface during a frontal collision; the lower vertical plate 103 is a vertically arranged panel structure. It can also be understood that, generally, the air intake area of ​​the front radiator of a car is located at the lower part of the front of the vehicle, that is, the lower part of the front anti-collision crossbeam 1. Some models also have an active air intake grille at the air intake area. Therefore, the clearance notch 103a provided on the lower vertical plate 103 in this structure will not affect the air intake volume at the air intake area. It can also be understood that, in order to better avoid the front radiator air intake area of ​​the car, the clearance notch 103a is designed to correspond to the front radiator air intake area of ​​the car. That is, the clearance notch 103a is generally designed at the middle position of the lower vertical plate 103 in the horizontal direction (referring to the horizontal direction of the vehicle body, that is, the length direction of the crossbeam body 101), to correspond to the front radiator air intake area of ​​the car. Furthermore, it can be understood that the clearance notch 103a preferably adopts an opening structure with a bottom opening to better form an air intake clearance; of course, in other embodiments, the clearance notch 103a may also be designed as a hole-type structure, provided that the air intake volume requirement is met.

[0026] The automobile front anti-collision cross beam structure provided above can reduce the barrier SD value and improve the new car evaluation score without affecting the heat dissipation capacity of the automobile front end radiator; meanwhile, the light weight design of the whole vehicle can be considered. Specifically, the lower vertical plate part 103 provided on the front panel of the cross beam body 101 can increase the collision contact area of the front anti-collision cross beam 1 to a certain extent, has good buffering and absorption effect on the collision force, is beneficial to dispersing the transmission of the collision force, thereby reducing the MPDB working condition barrier SD value and improving the new car evaluation score; the avoiding gap 103a provided on the lower vertical plate part 103 for avoiding the air inlet area of the automobile front end radiator can not affect the air inlet amount and air inlet uniformity of the original automobile front end radiator; meanwhile, the lower vertical plate part 103a structure is adopted, the front anti-collision cross beam 1 uses less material, and the light weight design of the whole vehicle can be considered; in addition, the structure design does not need to change the arrangement position of the cross beam body 1 on the whole vehicle, which is beneficial to reducing the change design cost of the existing vehicle model.

[0027] In the embodiment, the front panel of the cross beam body 101 extends upward to form an upper vertical plate part 102 for increasing the collision contact area. The upper vertical plate part 102 is a vertical plate structure. Since the avoiding gap 103a is provided on the lower vertical plate part 103, part of the collision contact area of the lower vertical plate part 103 is reduced, so the upper vertical plate part 102 provided can compensate for the reduced collision contact area, thereby improving the overall collision performance of the front anti-collision cross beam 1; meanwhile, the upper vertical plate part 102 and the lower vertical plate part 103 are provided, which effectively increases the collision contact area of the front anti-collision cross beam 1 when colliding, is beneficial to better reducing the barrier SD value, improving the collision performance, and improving the new car evaluation score. Meanwhile, the vertical plate structure is adopted, the material is less, and the light weight design of the whole vehicle can be considered.

[0028] In the embodiment, the bottom of the avoiding gap 103a is open, and the lower part of the avoiding gap 103a is flared to the lateral sides. It can be understood that here the lateral direction refers to the lateral direction of the vehicle body, that is, the length direction of the cross beam body 101. Here, the avoiding gap 103a is flared to the lateral sides to form a spade-shaped structure. The structure of the avoiding gap 103a is reasonable, and the flared structure can form a wind guiding effect on the air inlet area of the automobile front end radiator, which is beneficial to further ensuring the air inlet amount of the automobile front end radiator; meanwhile, the structure has good structural strength and good effect on improving the barrier SD value performance.

[0029] In the embodiment, the top edge of the avoiding gap 103a is flush with the bottom surface of the beam body 101. In the actual processing, the lower vertical plate part 103 and the beam body 101 can be first extruded and formed, and then the avoiding gap 103a is cut. By setting the top edge of the avoiding gap 103a flush with the bottom surface of the beam body 101, the avoidance of the front end of the automobile radiator inlet area is good, and the original arrangement position of the original beam body 101 on the whole vehicle can be changed without changing the original design of the whole vehicle.

[0030] In the embodiment, the back surface of the upper vertical plate part 102 is provided with an upper inclined brace plate 104, one end of the upper inclined brace plate 104 is fixed on the upper vertical plate part 102, and the other end of the upper inclined brace plate 104 is fixed on the top surface of the beam body 101; the back surface of the lower vertical plate part 103 is provided with a lower inclined brace plate 105, one end of the lower inclined brace plate 105 is fixed on the lower vertical plate part 103, and the other end of the lower inclined brace plate 105 is fixed on the bottom surface of the beam body 101. Specifically, the upper inclined brace plate 104 is arranged at the transverse middle position of the back surface of the upper vertical plate part 102, and the two ends avoid the connection and installation position of the energy absorption box 2. The upper inclined brace plate 104 can be an integral structure with the upper vertical plate part 102 and the beam body 101. Of course, the upper inclined brace plate 104 can also be fixed with the upper vertical plate part 102 by welding or other methods. The lower inclined brace plate 105 is two pieces, which are correspondingly arranged on the back surface of the lower vertical plate part 103 on the transverse two sides of the avoiding gap 103a. The lower inclined brace plate 105 is fixed with the lower vertical plate part 103 by welding or other methods. The upper inclined brace plate 104 and the lower inclined brace plate 105 can form a triangular cross-section reinforcing structure, which can further improve the crash performance of the front bumper beam and improve the new car evaluation score.

[0031] In the embodiment, the ratio of the height value of the upper vertical plate part 102 to the height value of the beam body 101 is in the range of 1 / 3 to 1 / 2; the ratio of the height value of the lower vertical plate part 103 to the height value of the beam body 102 is in the range of 1 / 3 to 1 / 2. It can be understood that the height value of the upper vertical plate part 102 is the width value of the upper vertical plate part 102 in the vertical direction, the height value of the beam body 101 is the width value of the beam body 101 in the vertical direction, and the height value of the lower vertical plate part 103 is the width value of the lower vertical plate part 103 in the vertical direction; the above ratio range is good for the strength increase effect of the front bumper beam 1, the actual use effect is good, the space occupation is reasonable, and the whole vehicle is arranged.

[0032] In the embodiment, the upper vertical plate part 102 is provided with a bevel part 102a at each end in the length direction. Specifically, the bevel part 102a is a V-shaped bevel part. The bevel part 102a can enhance the appearance, reduce stress concentration at the corners, improve the structural strength, and further enhance the overall crashworthiness. In addition, the bevel part 102a can reduce the material usage and further improve the lightweight performance of the vehicle.

[0033] In the embodiment, the upper vertical plate part 102, the lower vertical plate part 103, and the beam body 101 are integrally formed. The integrally formed structure is simple to process and has good overall structural strength.

[0034] In the embodiment, the beam body 101 is an arc-shaped beam, and the cross section of the beam body 101 is a goal-shaped cross section. The arc-shaped beam can better absorb and disperse the impact force during a collision, and can absorb energy through deformation to reduce damage to other parts of the vehicle. The goal-shaped cross section has good structural strength, and the upper vertical plate part 102 and the lower vertical plate part 103 are arranged to better improve the crashworthiness of the front crash beam 1, reduce the MPDB working condition barrier SD value, and further improve the evaluation score. In addition, the goal-shaped cross section structure is simple and easy to process. More specifically, the cross section of the two horizontal ribs in the middle of the goal-shaped cross section is curved, which can better induce deformation and improve the crashworthiness of the front crash beam 1.

[0035] In addition, in the embodiment, the wall thickness of the upper vertical plate part 102, the lower vertical plate part 103, and the beam body 101 is equal. The equal wall thickness is easy to process and ensures the processing quality. The front crash beam 1 is made of aluminum alloy, which further improves the lightweight design of the vehicle.

[0036] In the embodiment, an automobile front crash beam assembly is also disclosed, which comprises the automobile front crash beam as described above and an energy absorption box 2 arranged at each end of the beam body 101. It can be understood that the energy absorption boxes 2 at the two ends of the beam body 101 are usually arranged symmetrically. The connection between the energy absorption box 2 and the beam body 101 can be consistent with the existing vehicle model, such as the energy absorption box 2 being connected to the front crash beam 1 by bolts, welding, or other methods, which will not be described here. During a collision, the front crash beam 1 and the energy absorption box 2 complete the step-by-step collapse and energy absorption, thereby effectively ensuring the crashworthiness of the automobile front crash beam assembly. In the structure of the automobile front crash beam assembly, the lower vertical plate part added to the front of the beam body 101 effectively increases the collision contact area of the front crash beam 1 during a collision, facilitates the step-by-step crushing of the energy absorption box from front to back, effectively improves the crashworthiness of the crash beam assembly, reduces the MPDB working condition barrier SD value, improves the new car evaluation score, and is conducive to the lightweight design of the vehicle.

[0037] Finally, it is explained that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced by equivalents without departing from the purpose and scope of the present application. The technical solutions of the present application should be covered in the scope of the claims of the present application.

Claims

1. A front impact beam for a vehicle, characterized by: It includes a crossbeam body (101). A lower vertical plate portion (103) for increasing the collision contact area extends downward from the front panel of the crossbeam body (101). An avoidance notch (103a) for avoiding the intake port area of the radiator at the front end of the vehicle is provided on the lower vertical plate portion (103).

2. The automotive front bumper beam according to claim 1, characterized in that: An upper vertical plate portion (102) for increasing the collision contact area extends upward from the front panel of the crossbeam body (101).

3. The automotive front bumper beam according to claim 1, wherein: The bottom of the avoidance notch (103a) is open, and the lower part of the avoidance notch (103a) flares outward to both lateral sides.

4. The automotive front bumper beam according to claim 1, wherein: The top edge of the avoidance notch (103a) is flush with the bottom surface of the crossbeam body (101).

5. The automotive front bumper beam according to claim 2, wherein: An upper diagonal brace plate (104) is provided on the back surface of the upper vertical plate portion (102). One end of the upper diagonal brace plate (104) is fixed to the upper vertical plate portion (102), and the other end of the upper diagonal brace plate (104) is fixed to the top surface of the crossbeam body (101); a lower diagonal brace plate (105) is provided on the back surface of the lower vertical plate portion (103). One end of the lower diagonal brace plate (105) is fixed to the lower vertical plate portion (103), and the other end of the lower diagonal brace plate (105) is fixed to the bottom surface of the crossbeam body (101).

6. The automotive front bumper beam according to claim 2, wherein: The ratio range of the height value of the upper vertical plate portion (102) to the height value of the crossbeam body (101) is from 1 / 3 to 1 / 2; the ratio range of the height value of the lower vertical plate portion (103) to the height value of the crossbeam body (102) is from 1 / 3 to 1 / 2.

7. The automotive front bumper beam according to claim 2, wherein: Oblique mouth portions (102a) are respectively provided at both ends of the upper vertical plate portion (102) in its length direction.

8. The automotive front bumper beam according to claim 2, wherein: The upper vertical plate portion (102), the lower vertical plate portion (103) and the crossbeam body (101) are of an integrally formed structure.

9. The automotive front bumper beam according to claim 1, wherein: The crossbeam body (101) is an arc-shaped beam, and the cross section of the crossbeam body (101) is in the shape of a Chinese character 'Mu'.

10. A front bumper beam assembly for a vehicle comprising the front bumper beam of any one of claims 1-9, wherein: It further includes energy absorption boxes (2) respectively provided at both ends of the crossbeam body (101).

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