CN216734166U - Automobile front anti-collision beam - Google Patents
Automobile front anti-collision beam Download PDFInfo
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- CN216734166U CN216734166U CN202220093622.3U CN202220093622U CN216734166U CN 216734166 U CN216734166 U CN 216734166U CN 202220093622 U CN202220093622 U CN 202220093622U CN 216734166 U CN216734166 U CN 216734166U
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- Prior art keywords
- automobile
- energy
- collision
- energy absorption
- main
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- 238000010521 absorption reaction Methods 0.000 claims abstract description 30
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 238000001746 injection moulding Methods 0.000 claims description 8
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- 238000000748 compression moulding Methods 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 10
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007723 die pressing method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model provides an automobile front anti-collision beam which comprises a compression-molded main beam and energy absorption boxes injection-molded at two ends of the main beam, wherein grids with different wall thicknesses are integrally molded in the energy absorption boxes along the X direction of an automobile. The utility model can ensure that the energy absorption box only deforms along the X direction of the automobile, absorb the collision energy to the maximum extent and achieve the ideal crushing effect.
Description
Technical Field
The utility model relates to the technical field of automobile anti-collision beams, in particular to an automobile front anti-collision beam.
Background
The front anti-collision beam of the automobile is an indispensable part of the existing automobile, the energy absorption function of the anti-collision beam is extremely important under the condition of high-speed collision, and the plastic material replaces a metal material and has been successfully applied to the market. At present, the materials that crashproof roof beam adopted before the car have punching press steel sheet material, extrusion aluminum alloy material, plastics class material, and the crashproof roof beam in front of these three kinds of materials has following problem:
1. the front anti-collision beam made of steel materials is heavy, so that the weight of the whole vehicle is increased;
2. the front anti-collision beam made of aluminum materials is difficult to form by a process, and easy to deform during welding, so that the dimensional precision is poor;
3. the energy absorption of the plastic front anti-collision beam is difficult to achieve ideal crushing and rigidity requirements, and the collision performance is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides an automobile front anti-collision beam which can reduce the whole weight on the premise of ensuring the strength.
In order to achieve the purpose, the utility model adopts the following specific technical scheme:
the utility model provides an automobile front anti-collision beam, which comprises: the energy absorption box comprises a main beam formed by compression molding and energy absorption boxes formed at two ends of the main beam in an injection molding mode, wherein grids with different wall thicknesses are integrally formed in the energy absorption boxes along the X direction of the automobile.
Preferably, an X-direction groove for increasing the rigidity of the side face of the energy absorption box is formed on the side face of the energy absorption box along the X direction of the automobile.
Preferably, the cross section of the main beam is of a bow-shaped structure.
Preferably, reinforcing ribs for improving the rigidity of the main beam are respectively formed between the concave part of the arch-shaped structure and the upper top and the lower bottom in an injection molding mode.
Preferably, a load guide groove for transmitting the load from the main beam to the crash box is formed in the main beam in the height direction thereof.
Preferably, a through hole used for being connected with the vehicle body longitudinal beam is formed in the energy absorption box.
Preferably, the cross-section of the grid is a honeycomb structure.
Preferably, the main cross beam is a carbon fiber impact beam.
Compared with the prior art, the utility model can achieve the following technical effects:
1. the main beam is molded by compression, the process is easy to mold, the dimensional accuracy is high, and the weight of the front anti-collision beam can be reduced;
2. the main beam is provided with the reinforcing ribs, so that the rigidity of the front anti-collision beam is improved;
3. grids with different wall thicknesses are formed in the energy absorption box along the X direction of the automobile, so that the energy absorption box can be guaranteed to deform only along the X direction of the automobile, collision energy is absorbed to the maximum extent, and an ideal crushing effect is achieved.
Drawings
FIG. 1 is a structural schematic diagram of a front impact beam of an automobile in one direction according to an embodiment of the utility model;
FIG. 2 is a structural schematic view of a front impact beam of an automobile in another direction according to an embodiment of the utility model;
fig. 3 is a structural schematic diagram of a cross section of a main beam provided according to an embodiment of the present invention.
Wherein the reference numerals include: the energy absorption structure comprises a main beam 1, a concave part 101, an upper top 102, a lower bottom 103, a first group of reinforcing ribs 104, a second group of reinforcing ribs 105, a load guide groove 106, an energy absorption box 2, a grid 201, an X-direction groove 202 and a through hole 203.
Detailed Description
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the following description, the same reference numerals are used for the same blocks. In the case of the same reference numerals, their names and functions are also the same. Therefore, detailed description thereof will not be repeated.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not to be construed as limiting the utility model.
Fig. 1 and 2 show the structure of a front impact beam for an automobile according to an embodiment of the present invention from two directions, respectively.
As shown in fig. 1 and 2, the automobile front anti-collision beam provided by the embodiment of the utility model comprises a main beam 1 formed by compression molding and energy absorption boxes 2 formed at two ends of the main beam 1 by injection molding, and grids 201 with different wall thicknesses are integrally formed in the energy absorption boxes 2 along the automobile X direction (i.e. the driving direction), so that the grids can crush and absorb energy step by step along the automobile X direction under high-speed impact.
In order to enhance the rigidity of the main beam 1, the main beam 1 is a carbon fiber main beam, has excellent performances of high ring rigidity and strength, strong impact resistance, low density, high modulus and the like, can improve the collision strength of the front anti-collision beam, reduce the collision deformation of the front anti-collision beam, and exert the crushing, deformation and energy absorption effects of the energy absorption box 2 to the maximum extent.
Fig. 3 shows a cross-sectional structure of a main cross member provided according to an embodiment of the present invention.
As shown in fig. 3, the cross section of the main beam 1 is of a bow-shaped structure, and a concave portion 101, an upper top 102 and a lower bottom 103 are formed by die pressing. A first set of ribs 104 is injection molded in the recess 101, and the first set of ribs 104 plays a role in improving the rigidity of the main beam 1 against column impact. A second group of reinforcing ribs 105 are formed between the upper top 102 and the lower bottom 103 in an injection molding mode, and the second group of reinforcing ribs 105 play a role in assisting the main cross beam 1 to resist deformation in terms of direct collision and offset collision.
The energy absorption box 2 is formed by injection molding of polypropylene injection molding particle materials, and the grids 201 with unequal wall thicknesses in the energy absorption box 2 form an irregular grid structure, so that the energy absorption box 2 is guaranteed to crush and deform along the X direction of the automobile and not crush and deform along the Y direction of the automobile, and the collision energy can be absorbed to the maximum extent.
An X-direction groove 202 is formed in the side face of the energy absorption box 2 along the X direction of the automobile, and the X-direction groove 202 is used for increasing the rigidity of the side face of the energy absorption box 2 and further ensuring that the energy absorption box 2 cannot be crushed and deformed along the Y direction of the automobile.
A plurality of through holes 203 are formed in the energy absorption box 2, and the energy absorption box 2 is connected with a vehicle body longitudinal beam through the through holes 203.
The working principle of the automobile front anti-collision beam provided by the embodiment of the utility model is as follows: when the current front anti-collision beam has column collision, head-on collision and offset collision, the main beam 1 firstly contacts the wall barrier, mainly playing the capacity of resisting deformation, the uniform distribution of stress is realized through the first group of reinforcing ribs 104 and the second group of reinforcing ribs 105, the stress concentration is avoided, the main beam 1 is ensured not to have plastic deformation, simultaneously, the load is guided by the load guide groove 106 to be transmitted to the energy-absorbing box 2, the energy-absorbing box 2 is enabled to have crumple deformation along the X direction of the automobile, the collision energy is absorbed to the maximum extent, the X direction groove 202 can ensure that the energy-absorbing box 2 can not have deformation along the Y direction of the automobile, and the same performance of the metal anti-collision beam is achieved.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
The above embodiments of the present invention should not be construed as limiting the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the protection scope of the claims of the present invention.
Claims (6)
1. An automobile front impact beam, comprising: the energy-absorbing box comprises a main beam and energy-absorbing boxes, wherein the main beam is formed by compression molding, the energy-absorbing boxes are formed at two ends of the main beam in an injection molding mode, and grids with different wall thicknesses are integrally formed in the energy-absorbing boxes along the X direction of an automobile; the cross section of the main cross beam is of a bow-shaped structure, and reinforcing ribs for improving the rigidity of the main cross beam are respectively formed between the concave part of the bow-shaped structure and the upper top and the lower bottom in an injection molding mode.
2. The automobile front impact beam as claimed in claim 1, wherein an X-direction groove for increasing the rigidity of the energy absorption box side face is formed in the side face of the energy absorption box in the X direction of the automobile.
3. The front impact beam for automobiles according to claim 1, wherein load guide grooves for transmitting load from said main beam to said crash boxes are formed in said main beam in a height direction thereof.
4. The automobile front anti-collision beam according to any one of claims 1 to 3, characterized in that a through hole for connecting with a vehicle body longitudinal beam is formed in the energy absorption box.
5. The automobile front impact beam according to any one of claims 1 to 3, wherein the cross section of the grid is a honeycomb structure.
6. The automobile front anti-collision beam according to any one of claims 1 to 3, characterized in that the main cross beam is a carbon fiber anti-collision beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220093622.3U CN216734166U (en) | 2022-01-14 | 2022-01-14 | Automobile front anti-collision beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220093622.3U CN216734166U (en) | 2022-01-14 | 2022-01-14 | Automobile front anti-collision beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216734166U true CN216734166U (en) | 2022-06-14 |
Family
ID=81915267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220093622.3U Active CN216734166U (en) | 2022-01-14 | 2022-01-14 | Automobile front anti-collision beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216734166U (en) |
-
2022
- 2022-01-14 CN CN202220093622.3U patent/CN216734166U/en active Active
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