CN211809466U - Improve little biasing and bump crashproof performance's preceding crashproof roof beam assembly - Google Patents
Improve little biasing and bump crashproof performance's preceding crashproof roof beam assembly Download PDFInfo
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- CN211809466U CN211809466U CN201921897156.9U CN201921897156U CN211809466U CN 211809466 U CN211809466 U CN 211809466U CN 201921897156 U CN201921897156 U CN 201921897156U CN 211809466 U CN211809466 U CN 211809466U
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Abstract
The utility model provides an improve little biasing and bump crashproof performance's preceding crashproof roof beam assembly, including the crossbeam, the energy-absorbing box, the relative crossbeam central symmetry of energy-absorbing box sets up, the energy-absorbing box comprises main energy-absorbing box, vice energy-absorbing box, the back mounting panel of main energy-absorbing box, the back mounting panel and the longeron connecting plate of vice energy-absorbing box are connected, main energy-absorbing box, the front end and the crossbeam of vice energy-absorbing box are connected, vice energy-absorbing box is located the main energy-absorbing box outside, main energy-absorbing box, vice energy-absorbing box all is equipped with. The utility model discloses the structure to the energy-absorbing box is improved, has designed main, vice energy-absorbing box structure to the distributing of the muscle that contracts that bursts to main, vice energy-absorbing box distributes and the gusset carries out the optimal design. The improvement is favorable for guiding the uniform crushing deformation of the main energy absorption box and the auxiliary energy absorption box during small offset collision, simultaneously reduces the y-direction component force generated during collision, effectively improves the energy absorption effect of the small offset collision, enhances the collision stability of the front anti-collision beam, and reduces the damage of the automobile and the injury to passengers during the small offset collision.
Description
Technical Field
The utility model relates to an automobile anti-collision beam especially improves the front anti-collision beam assembly that the little biasing bumped crashproof performance.
Background
Among the frontal automobile collisions with different overlap ratios, a frontal small overlap ratio collision (a frontal collision with an overlap ratio of 25%) is a high-incidence accident pattern, and the death rate of passengers caused by the accident is also high. When most automobile manufacturers design automobiles, only the requirements of 40% overlap ratio collision and 100% overlap ratio collision tests of the front face of the automobile and the barrier are paid attention, and enough attention is not paid to small-overlap front collision. With the establishment of small offset collision laws and regulations of automobiles, new requirements and challenges are provided for the structural design of the automobiles. For small offset crash regulations (25% coverage 64km/h frontal rigid barrier crash), the main problems with existing automotive front impact beams are: the energy absorption box is less crushed during collision, the distribution and the structure of the energy absorption box obviously have insufficient energy absorption effect on small offset collision, so that the automobile is seriously damaged during the small offset collision, and passengers are injured.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's drawback, provide a little biasing and bump crashproof performance's preceding crashproof roof beam assembly of improvement that can effective energy-absorbing improve the security performance in bumping.
The problem of the utility model is realized with following technical scheme:
the utility model provides an improve little biasing and bump crashproof performance's preceding crashproof roof beam assembly, which comprises a cross beam, energy-absorbing box and longeron connecting plate, the relative crossbeam central symmetry of energy-absorbing box sets up, the energy-absorbing box comprises main energy-absorbing box, vice energy-absorbing box, the back mounting panel of main energy-absorbing box, the back mounting panel and the longeron connecting plate of vice energy-absorbing box are connected, main energy-absorbing box, the front end and the crossbeam of vice energy-absorbing box are connected, vice energy-absorbing box is located the main energy-absorbing box outside, main energy-absorbing box, vice energy-absorbing box.
In the front anti-collision beam assembly for improving the small offset anti-collision performance, the edge part of the main energy absorption box is provided with the collapse rib of the main energy absorption box; the edge part of the auxiliary energy absorption box is provided with auxiliary energy absorption box collapse ribs, wherein the number of the auxiliary energy absorption box collapse ribs at the edge part of the inner side of the auxiliary energy absorption box is more than that of the auxiliary energy absorption box collapse ribs at the edge part of the outer side of the auxiliary energy absorption box.
According to the front anti-collision beam assembly for improving the small offset collision anti-collision performance, the section of the main energy absorption box is rectangular, the side length of the rectangle in the z direction is larger than that in the y direction, two main energy absorption box rib plates are symmetrically arranged in the main energy absorption box, the main energy absorption box rib plates are composed of a middle straight rib section and two side inclined rib sections which are connected with each other, and the positions and the directions of the two side inclined rib sections and the longitudinal beam rib plates are corresponding.
In the front anti-collision beam assembly for improving the small offset anti-collision performance, the section of the auxiliary energy absorption box is rectangular, and the side length of the rectangle along the z direction is smaller than that along the y direction; the inside of the auxiliary energy absorption box is divided into three cavities by an auxiliary energy absorption box rib plate, two symmetrical auxiliary energy absorption box small cavities are arranged near the outer end of the beam, and a larger auxiliary energy absorption box large cavity is arranged far away from the outer end of the beam; one auxiliary energy absorption box rib plate corresponds to the position and the direction of the vertical plate in the middle of the cross beam.
According to the front anti-collision beam assembly for improving the small offset anti-collision performance, the front end of the auxiliary energy absorption box is provided with the U-shaped front connecting plate, the front connecting plate is connected with the auxiliary energy absorption box into a whole through welding, and the front connecting plate is connected with the cross beam through bolts.
The utility model discloses bump car anticollision performance and design to improving little biasing, mainly improved the structure of energy-absorbing box, designed main, vice energy-absorbing box structure to the distributing of the muscle that contracts of bursting to main, vice energy-absorbing box distributes and the gusset carries out the optimal design. The improvement is favorable for guiding the uniform crushing deformation of the main energy absorption box and the auxiliary energy absorption box during small offset collision, simultaneously reduces the y-direction component force generated during collision, effectively improves the energy absorption effect of the small offset collision, enhances the collision stability of the front anti-collision beam, and reduces the damage of the automobile and the injury to passengers during the small offset collision.
Drawings
The present invention will be further explained with reference to the accompanying drawings.
Fig. 1 is a perspective view of the present invention;
fig. 2 is a schematic structural diagram of the present invention;
FIG. 3 is a sectional view A-A of FIG. 2;
fig. 4 is a sectional view B-B in fig. 2.
The reference numbers in the figures are: 1. the structure comprises a cross beam, 1-1 parts of a trimming structure, 1-2 parts of a middle vertical plate of the cross beam, 2 parts of a main energy absorption box, 2-1 parts of a main energy absorption box collapse rib, 2-2 parts of a main energy absorption box rib plate, 3 parts of an auxiliary energy absorption box, 3-1 parts of an auxiliary energy absorption box collapse rib, 3-2 parts of an auxiliary energy absorption box small cavity, 3-3 parts of an auxiliary energy absorption box large cavity, 3-4 parts of an auxiliary energy absorption box rib plate, 3-5 parts of a front connecting plate, 4 parts of a longitudinal beam connecting plate, 5 parts of a longitudinal beam.
Detailed Description
The utility model discloses an on the law basis is bumped in the small offset of fully considering, crashproof roof beam before the car of an use aluminum alloy as the material of design. Referring to fig. 1, the utility model discloses a crossbeam 1 and energy-absorbing box, the relative crossbeam central symmetry of energy-absorbing box sets up. The whole cross beam 1 is of a symmetrical bidirectional bending structure, avoidance is considered at two ends of the cross beam, a corner cutting structure 1-1 is adopted, and the cross beam is provided with a cross beam middle vertical plate 1-2 for improving the strength of the cross beam. The energy absorption box is composed of a main energy absorption box 2 and an auxiliary energy absorption box 3, the main energy absorption box corresponds to the longitudinal beam 5 in position, and the auxiliary energy absorption box is arranged on the outer side of the main energy absorption box. The rear mounting plate of the main energy absorption box and the rear mounting plate of the auxiliary energy absorption box are connected with the longitudinal beam connecting plate 4, and the longitudinal beam 5 is assembled at the rear part of the longitudinal beam connecting plate. The front ends of the main energy absorption box and the auxiliary energy absorption box are connected with the beam along the direction of two sides of the beam, and the main energy absorption box and the auxiliary energy absorption box are both provided with crumpling ribs. The main energy-absorbing box is in a cube shape, four edge parts of the main energy-absorbing box are provided with main energy-absorbing box collapse ribs 2-1 so as to improve the crushing energy-absorbing effect of the main energy-absorbing box 2. The auxiliary energy absorption boxes are cubic, and the four edges of each auxiliary energy absorption box are provided with auxiliary energy absorption box collapse ribs 3-1, wherein the number of the auxiliary energy absorption box collapse ribs at the edges of the inner side is more than that of the auxiliary energy absorption boxes at the edges of the outer side, so that the auxiliary energy absorption boxes can be more uniformly crushed and deformed when small offset collision is guided. In the illustrated embodiment, two edges of the inner side surface of the auxiliary energy absorption box are respectively provided with two auxiliary energy absorption box collapse ribs, and two edges of the outer side surface of the auxiliary energy absorption box are respectively provided with one auxiliary energy absorption box collapse rib. The front end of the auxiliary energy absorption box is provided with a front connecting plate 3-5, the front connecting plate is U-shaped, the front connecting plate is connected with the auxiliary energy absorption box into a whole through welding, and the front connecting plate is connected with the cross beam through a bolt. Therefore, the welding strength between the auxiliary energy absorption box and the auxiliary energy absorption box can be guaranteed, and the connection strength between the auxiliary energy absorption box and the cross beam can be effectively improved.
Referring to fig. 2-4, the cross section of the main energy-absorbing box is rectangular, the side length of the rectangle along the z direction (the height direction in the using state) is larger than the side length along the y direction (the left and right direction in the using state), two main energy-absorbing box rib plates 2-1 are symmetrically arranged in the main energy-absorbing box, each main energy-absorbing box rib plate is composed of a middle straight rib section and two side inclined rib sections which are connected with each other, and the positions and the directions of the two side inclined rib sections and the connecting rib plates arranged in the longitudinal beam correspond to each other. The structure can ensure the force transmission in collision and reduce the instability and deformation of the energy absorption box. The cross section of the auxiliary energy absorption box 3 is rectangular, and the side length of the rectangle along the z direction is smaller than that along the y direction. The auxiliary energy absorption box 3 is divided into three cavities by an auxiliary energy absorption box rib plate, two symmetrical auxiliary energy absorption box small cavities 3-2 are arranged near the outer end of the beam, and the part of the energy absorption box has higher rigidity and is not easy to deform; the outer end far away from the beam is provided with a large cavity 3-3 of a large auxiliary energy absorption box, and the part of the energy absorption box has low rigidity and is easy to crush and deform. The energy absorption box rib plates 3-4 of the outer side walls of the auxiliary connecting auxiliary energy absorption boxes correspond to the vertical plates 1-2 in the middle of the cross beam in position and direction, and play a supporting role to ensure collision force transmission and reduce instability deformation of the energy absorption boxes.
Claims (5)
1. The utility model provides an improve little off-set and bump crashproof performance's preceding crashproof roof beam assembly, includes crossbeam (1), energy-absorbing box and longeron connecting plate (4), the relative crossbeam central symmetry of energy-absorbing box sets up its characterized in that: the energy absorption box is composed of a main energy absorption box (2) and an auxiliary energy absorption box (3), a rear mounting plate of the main energy absorption box and a rear mounting plate of the auxiliary energy absorption box are connected with the longitudinal beam connecting plate (4), the front ends of the main energy absorption box and the auxiliary energy absorption box are connected with the cross beam, the auxiliary energy absorption box (3) is located on the outer side of the main energy absorption box, and the main energy absorption box and the auxiliary energy absorption box are both provided with crumpling ribs.
2. The front impact beam assembly for improving small offset impact collision avoidance performance of claim 1 wherein: the edge part of the main energy-absorbing box is provided with a main energy-absorbing box crumpling rib (2-1); the edge part of the auxiliary energy absorption box is provided with auxiliary energy absorption box crumpling ribs (3-1), wherein the number of the auxiliary energy absorption box crumpling ribs at the edge part of the inner side surface of the auxiliary energy absorption box is more than that of the auxiliary energy absorption box crumpling ribs at the edge part of the outer side surface of the auxiliary energy absorption box.
3. The front impact beam assembly for improving small offset impact collision avoidance performance of claim 2 wherein: the cross section of the main energy absorption box is rectangular, the side length of the rectangle along the z direction is larger than that along the y direction, two main energy absorption box rib plates (2-2) are symmetrically arranged in the main energy absorption box, each main energy absorption box rib plate is composed of a middle straight rib section and two side inclined rib sections which are connected with each other, and the positions and the directions of the two side inclined rib sections and the longitudinal beam rib plates are corresponding.
4. The front impact beam assembly for improving small offset impact collision avoidance performance of claim 2 wherein: the section of the auxiliary energy absorption box is rectangular, and the side length of the rectangle along the z direction is smaller than that along the y direction; the inside of the auxiliary energy absorption box is divided into three cavities by auxiliary energy absorption box rib plates, two symmetrical auxiliary energy absorption box small cavities (3-2) are arranged near the outer end of the beam, and a larger auxiliary energy absorption box large cavity (3-3) is arranged far away from the outer end of the beam; one auxiliary energy absorption box rib plate (3-4) corresponds to the position and the trend of the middle vertical plate (1-2) of the cross beam.
5. The front impact beam assembly for improving small offset impact collision avoidance performance of claim 3 or 4, wherein: the front end of the auxiliary energy absorption box is provided with a U-shaped front connecting plate (3-5), the front connecting plate is connected with the auxiliary energy absorption box into a whole by welding, and the front connecting plate is connected with the cross beam through a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921897156.9U CN211809466U (en) | 2019-11-06 | 2019-11-06 | Improve little biasing and bump crashproof performance's preceding crashproof roof beam assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921897156.9U CN211809466U (en) | 2019-11-06 | 2019-11-06 | Improve little biasing and bump crashproof performance's preceding crashproof roof beam assembly |
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| CN211809466U true CN211809466U (en) | 2020-10-30 |
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| CN201921897156.9U Active CN211809466U (en) | 2019-11-06 | 2019-11-06 | Improve little biasing and bump crashproof performance's preceding crashproof roof beam assembly |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114906226A (en) * | 2022-05-27 | 2022-08-16 | 东风柳州汽车有限公司 | Automobile frame and automobile |
| CN114996994A (en) * | 2022-05-19 | 2022-09-02 | 江铃汽车股份有限公司 | Anti-collision beam energy absorption box structure capable of improving collision compatibility and design method thereof |
-
2019
- 2019-11-06 CN CN201921897156.9U patent/CN211809466U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114996994A (en) * | 2022-05-19 | 2022-09-02 | 江铃汽车股份有限公司 | Anti-collision beam energy absorption box structure capable of improving collision compatibility and design method thereof |
| CN114906226A (en) * | 2022-05-27 | 2022-08-16 | 东风柳州汽车有限公司 | Automobile frame and automobile |
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