CN216301016U - Automobile energy absorption box - Google Patents
Automobile energy absorption box Download PDFInfo
- Publication number
- CN216301016U CN216301016U CN202121772585.0U CN202121772585U CN216301016U CN 216301016 U CN216301016 U CN 216301016U CN 202121772585 U CN202121772585 U CN 202121772585U CN 216301016 U CN216301016 U CN 216301016U
- Authority
- CN
- China
- Prior art keywords
- box body
- energy absorption
- box
- plate
- top plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
An automobile energy absorption box is used for solving the technical problem that the energy absorption effect of the automobile energy absorption box is poor due to the fact that the existing crumpling guide groove is unreasonable in design. The box comprises an upper box body and a lower box body, wherein the upper box body and the lower box body are symmetrically arranged and fixed with each other; the energy absorption box comprises an upper box body and a lower box body, wherein the upper box body and the lower box body respectively comprise a box body with a U-shaped cross section and two turning plates which are symmetrically arranged, the two turning plates are fixedly arranged on two sides of the box body along the length direction of the box body, the box body is provided with n crumpling guide grooves at intervals from one end to the other end in parallel, n is more than 2, n is an odd number, each crumpling guide groove is arranged along the circumferential direction of the box body and is in a U-shaped trend, the arrangement of the n odd number of crumpling guide grooves can control the plastic deformation direction of the energy absorption box and ensure that the energy absorption box is subjected to sufficient plastic deformation, so that the energy absorption effect of the energy absorption box is comprehensively improved; the utility model is mainly used in the field of automobile manufacturing.
Description
Technical Field
The utility model relates to the field of automobile manufacturing, in particular to an automobile energy absorption box.
Background
The automobile energy absorption box is a main energy absorption part on an automobile front anti-collision beam, and absorbs and converts impact force into plastic deformation of the energy absorption box when an automobile collides, so that energy transmitted to a cab is reduced, safety of personnel in the automobile is guaranteed, and the plastic deformation of the energy absorption box can be fully and uniformly generated, which is one of key factors for improving the energy absorption effect of the energy absorption box.
An energy-absorbing box of current section includes box body and lower box body, goes up box body and box body integrated into one piece down and forms the cross-section for square cavity structures, and one side is the opening, and the last box body that the opening part corresponds has one to turn over the board with homogeneous integrated into one piece on the box body down, and two turn over the board and pass through welded mode fixed together, and all set up the guiding groove that bursts along respective circumference on going up box body and the lower box body, and the guiding groove that bursts and contracts directly extends to on turning over the board.
Because turn over the board department and adopt welding mode fixed, the welding department originally belongs to the position of easily warping when the energy-absorbing box receives the striking, and the guiding groove department that contracts bursts also is the position that the atress is concentrated, so it contracts guiding groove direct extension to turn over board department and can make the welding department receive bigger stress, thereby it has divided risk to make the energy-absorbing box inefficacy to have increaseed to turn over board welded connection department, and the arrangement of the guiding groove that contracts bursts can not make the energy-absorbing box plastic deformation abundant and even, the energy-absorbing effect of energy-absorbing box is relatively poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an automobile energy absorption box aiming at the defects in the prior art, and aims to solve the technical problem that the energy absorption effect of the automobile energy absorption box is poor due to the unreasonable design of the conventional crumple guide groove.
In order to achieve the purpose, the utility model adopts the following technical scheme:
an automobile energy absorption box comprises an upper box body and a lower box body, wherein the upper box body and the lower box body are symmetrically arranged and fixed with each other; the upper box body and the lower box body respectively comprise a U-shaped box body and two symmetrically arranged turning plates, the turning plates are fixedly arranged on two sides of the box body along the length direction of the box body, n crumple guide grooves are arranged on the box body from one end to the other end at intervals and in parallel, n is larger than 2, n is an odd number, and each crumple guide groove is arranged along the circumferential direction of the box body and is in a U-shaped trend.
Furthermore, the box body is further provided with (n +1) groups of lightening holes, the (n +1) groups of lightening holes are arranged between the n crumple guide grooves at intervals from one end to the other end of the box body, each group comprises at least three lightening holes, and all the lightening holes in each group are arranged along the circumferential direction of the box body.
Furthermore, the box body comprises a long-strip-shaped top plate and side plates arranged on two sides of the top plate, the number of the side plates is two, each turning plate is fixedly connected with the side plate along the length direction of each side plate, an arc-shaped transition plate is arranged at the joint of each side plate and the top plate, the side plates, the turning plates and the arc-shaped transition plates are integrally formed.
Furthermore, the top plate and the side plates are trapezoidal plates, the surface of the top plate is perpendicular to the surface of the side plates, the surface of the turning plate is perpendicular to the surface of the side plates, and the perpendicular distance from one end of the top plate to the turning plate is greater than the perpendicular distance from the other end of the top plate to the turning plate, so that the energy absorption box formed by fixedly splicing the upper box body and the lower box body is of a structure with a large opening size at one end and a small opening size at the other end.
Furthermore, each group of weight reducing holes comprises a first weight reducing hole formed in the top plate and a plurality of second weight reducing holes formed in the two side plates, the two first weight reducing holes located at the two ends of the top plate are circular holes, the other first weight reducing holes located in the top plate are oblong holes, the long axis of each oblong first weight reducing hole is parallel to the width direction of the top plate, and each second weight reducing hole is a circular hole.
Furthermore, the centers of the second lightening holes at the corresponding positions in each group of lightening holes are collinear, and the diameters of the collinear second lightening holes are gradually increased from the smaller end of the opening of the energy absorption box to the larger end of the opening of the energy absorption box.
Further, a part of the collapse guiding grooves are sunken towards the inside of the box body, the other part of the collapse guiding grooves are protruded towards the outside of the box body, the collapse guiding grooves sunken towards the inside of the box body and the collapse guiding grooves protruded towards the outside of the box body are alternately arranged, and the (n +1)/2 th collapse guiding grooves on the box body are protruded towards the outside of the box body.
The utility model has the beneficial effects that:
the energy absorption box is characterized in that n crumple guide grooves are arranged on the box body in parallel from one end to the other end of the box body, each crumple guide groove is arranged along the circumferential direction of the box body and moves in a U-shaped direction, two ends of each crumple guide groove only extend to the side plates arranged on two sides of the top plate and do not extend to the turning plates arranged on the side plates, the stability of the welding connection position of the turning plates on the upper box body and the turning plates on the lower box body cannot be influenced, so that the energy absorption box has a good energy absorption effect, the direction of plastic deformation of the energy absorption box can be controlled by the n odd number of crumple guide grooves, and the energy absorption box is enabled to be subjected to sufficient and uniform plastic deformation, so that the energy absorption effect of the energy absorption box is further improved.
Drawings
FIG. 1 is a schematic perspective view of an assembled embodiment of the present disclosure;
fig. 2 is a side view of an embodiment of the present application.
Description of reference numerals: 1. an upper box body; 10. a top plate; 11. a side plate; 12. turning over a plate; 13. an arc-shaped transition plate; 2. a lower box body; 21. a first lightening hole; 22. a second lightening hole; 31. the collapse guiding groove.
Detailed Description
The technical solution of the present invention is further described with reference to the accompanying drawings 1-2 and the embodiments.
As shown in fig. 1 and 2, an automobile crash box comprises an upper box body 1 and a lower box body 2, the upper box body 1 and the lower box body 2 are completely the same in structure, that is, the upper box body 1 and the lower box body 2 can be made of the same mold, the upper box body 1 and the lower box body 2 are fixed into a whole in a welding mode, the crash box formed by the upper box body 1 and the lower box body 2 is of a cavity structure with a small opening at one end and a large opening at the other end, one end of the small opening of the crash box is welded and fixed on an automobile front anti-collision front cross beam inner plate assembly, one end of the large opening of the crash box is welded and fixed on a front anti-collision beam rear mounting plate, n crumple guide grooves 31 are respectively arranged on the upper box body 1 and the lower box body 2, each crumple guide groove 31 is arranged along the U-shaped trend of the cross section of the upper box body 1 or the lower box body 2 corresponding to the crumple guide groove 31, n is greater than 2, and n is an odd number.
When the automobile is collided, the n crumple guide grooves 31 can enable the energy-absorbing boxes to be fully crushed and the plastic deformation to be controllable, and impact force is absorbed in the process of plastic deformation of the energy-absorbing boxes, so that energy transmitted to a passenger compartment is fully weakened, and the body safety of passengers is protected to the maximum extent.
Go up box body 1 and box body 2 down and all include that the cross section is the box body of U font and set up the board 12 that turns over in box body both sides, turn over board 12 and have two, and every turns over board 12 and all sets up along the length direction of box body, and two of going up box body 1 turn over board 12 and two of box body 2 down turn over board 12 and correspond welded fastening to make and go up box body 1 and lower box body 2 fixed formation energy-absorbing box.
The box body comprises a top plate 10 and two side plates 11 symmetrically arranged on two sides of the top plate 10, wherein the joints of the two side plates 11 and the top plate 10 are provided with arc transition plates 13, the joints of the side plates 11 and corresponding turning plates 12 are also provided with arc transition plates 13, and the top plate 10, the side plates 11, the arc transition plates 13 and the turning plates 12 are integrally formed, so that the upper box body 1 or the lower box body 2 is formed.
The top plate 10 and the side plate 11 are both trapezoidal plates, and the distance from one end of the top plate 10 to the corresponding turning plate 12 is greater than the distance from the other end of the top plate 10 to the corresponding turning plate 12, so that the energy absorption box formed by fixedly splicing the upper box body 1 and the lower box body 2 is a cavity structure with a large opening size at one end and a small opening size at the other end.
The arrangement of the arc transition plate 13 can reduce the problem that stress is excessively concentrated at the corners of the upper box body 1 or the lower box body 2, so that the arc transition plate 13 can effectively disperse the excessively concentrated stress to enable the whole upper box body 1 or the lower box body 2 to be uniformly stressed, and serious local damage can not occur when the energy absorption box is impacted, so that the whole energy absorption box can play an energy absorption role.
A part of the collapse guiding groove 31 is sunken towards the inner part of the box body, the other part of the collapse guiding groove 31 is protruded towards the outer part of the box body, the collapse guiding groove 31 sunken towards the inner part of the box body and the collapse guiding groove 31 protruded towards the outer part of the box body are alternately arranged, and the (n +1)/2 th crumple guide groove 31 protrudes outward from the box body, both ends of each crumple guide groove 31 correspondingly extend to the two side plates 11 at both sides of the box body, and the length of the two ends of the (n +1)/2 th crumple guide groove 31 extending on the two side plates 11 is the longest, the crumple guide groove 31 extending on the side plates 11 can enable the whole energy-absorbing box to be fully crushed along the length direction of the energy-absorbing box when the energy-absorbing box generates plastic deformation, so as to absorb the impact force to the maximum extent, and the alternate arrangement mode can also enable the plastic deformation of the energy absorption box to be more sufficient, namely, more impact force is absorbed so as to improve the performance of the whole energy absorption box.
When the energy-absorbing box takes place plastic deformation, the guiding groove 31 that contracts bursts belongs to the concentrated department of atress, because the board 12 that turns over of last box 1 and lower box 2 is together fixed through the welded mode, concentrated stress can cause the influence to the stability of welding connection department, the both ends of the guiding groove 31 that contracts bursts do not extend to turning over the board 12 on extending to curb plate 11, can prevent effectively that stress concentration from causing the problem of influence to the stability of welding connection department, and then guarantee that the energy-absorbing box can normally function.
The upper box body 1 and the lower box body 2 are further provided with (n +1) groups of lightening holes, each group comprises at least three (n +1) groups of lightening holes, the (n +1) groups of lightening holes are arranged among the n crumpling guide grooves in parallel along the length direction of the upper box body 1 or the lower box body 2 at intervals, namely, the n crumpling guide grooves 31 and the (n +1) groups of lightening holes are arranged from one end with a small opening to one end with a large opening of the energy absorption box in a mode that the group of lightening holes and the crumpling guide groove 31 are arranged in a crossed mode.
The arrangement of the lightening holes can improve the plastic deformation degree of the energy absorption box on one hand, and the overall quality of the energy absorption box is reduced on the other hand, so that the overall performance of the whole energy absorption box is better.
Each group of lightening holes comprises first lightening holes 21 arranged on the top plate and second lightening holes 22 arranged on the two side plates 11, the two first lightening holes 21 positioned at the two ends of the top plate 10 are circular, the other first lightening holes 21 positioned on the top plate 10 are oblong holes, the long axis of each oblong first lightening hole 21 is parallel to the width direction of the energy absorption box, and each second lightening hole 22 is a circular hole.
The centers of the second lightening holes 22 located at the corresponding positions of each group of lightening holes on the side plate 11 are collinear, and the diameters of the collinear second lightening holes 22 are sequentially increased along the direction from the small opening to the large opening of the energy absorption box.
Example one
When n equals 3, all set up 3 guiding grooves that crumple on box 1 and the lower box 2 promptly, the group number of lightening hole is 4 groups this moment, and every group lightening hole also sets up 3.
According to the direction from the small opening to the large opening of the energy-absorbing box, a first crumple guide groove 31 which is sunken in the box body, a second crumple guide groove 31 which is protruded outside the box body and a third crumple guide groove 31 which is sunken in the box body are sequentially arranged, two ends of the 3 crumple guide grooves 31 extend to the side plates 11 on two sides, and the length of the second crumple guide groove 31 extending to the side plates 11 is the longest.
The 4 groups of lightening holes are also sequentially arranged along the direction from the small opening to the large opening of the energy absorption box and are respectively a first group of lightening holes, a second group of lightening holes, a third group of lightening holes and a fourth group of lightening holes.
A first group of lightening holes, a first crumple guide groove, a second group of lightening holes, a second crumple guide groove, a third group of lightening holes, a third crumple guide groove and a fourth group of lightening holes are arranged on the energy-absorbing box in the direction from the small opening to the large opening, the first lightening holes 21 in the first group of lightening holes and the fourth group of lightening holes and located on the top plate 10 are circular holes, and the first lightening holes 21 in the second group of lightening holes and the third group of lightening holes and located on the top plate 10 are oblong holes.
Two second lightening holes 22 in each group of lightening holes are respectively arranged on the two side plates 11, namely, only one row of second lightening holes 22 is arranged on each side plate 11, the row comprises 4 second lightening holes 22, the centers of circles of the four second lightening holes 22 in the row are collinear, and the diameter of each second lightening hole 22 is sequentially increased along the direction from the small opening to the large opening of the energy-absorbing box.
The working principle is as follows: the upper box body 1 and the lower box body 2 are manufactured by adopting the same die, the corresponding turning plates 12 of the upper box body 1 and the lower box body 2 are welded and fixed in a welding mode, then one end, with a smaller opening, of an energy absorption box consisting of the upper box body 1 and the lower box body 2 is welded on an automobile front anti-collision front cross beam inner plate assembly, one end, with a larger opening, of the energy absorption box is welded and fixed on a front anti-collision beam rear mounting plate, the energy absorption box is mounted, one part of a crumpling guide groove 31 on the energy absorption box is sunken in the box body, the other part of the crumpling guide groove is protruded out of the box body, the crumpling guide groove is sunken in the box body and protruded out of the box body alternately, and the arrangement of the first lightening holes 21 and the second lightening holes 22 is integrated to enable the energy absorption box to be capable of fully and uniformly generating plastic deformation so that the energy absorption effect of the energy absorption box is better.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (7)
1. An automobile energy absorption box comprises an upper box body (1) and a lower box body (2), wherein the upper box body (1) and the lower box body (2) are symmetrically arranged and fixed with each other; the folding box is characterized in that the upper box body (1) and the lower box body (2) respectively comprise a box body with a U-shaped cross section and two symmetrically arranged turning plates (12), the two turning plates (12) are fixedly arranged on two sides of the box body along the length direction of the box body, n crumple guide grooves (31) are arranged on the box body from one end to the other end at intervals in parallel, n is larger than 2 and is an odd number, and each crumple guide groove (31) is arranged along the circumferential direction of the box body and moves in a U shape.
2. The automobile energy absorption box as claimed in claim 1, wherein the box body is further provided with (n +1) groups of lightening holes, the (n +1) groups of lightening holes are arranged between n crumple guide grooves (31) at intervals from one end to the other end of the box body, each group comprises at least three groups, and all the lightening holes of each group are arranged along the circumferential direction of the box body.
3. The automobile crash box according to claim 2, characterized in that the box body comprises an elongated top plate (10) and two side plates (11) arranged on two sides of the top plate (10), each turning plate (12) is fixedly connected with the side plate (11) along the length direction of each side plate (11), an arc-shaped transition plate (13) is arranged at the joint of each side plate (11) and the top plate (10), the side plates (11), the turning plates (12) and the arc-shaped transition plates (13) are integrally formed.
4. The automobile energy absorption box according to claim 3, wherein the top plate (10) and the side plate (11) are both trapezoidal plates, the plate surface of the top plate (10) is perpendicular to the plate surface of the side plate (11), the plate surface of the turning plate (12) is perpendicular to the plate surface of the side plate (11), and the perpendicular distance from one end of the top plate (10) to the turning plate (12) is greater than the perpendicular distance from the other end of the top plate (10) to the turning plate (12), so that the energy absorption box formed by fixedly splicing the upper box body (1) and the lower box body (2) is of a structure with a large opening size at one end and a small opening size at the other end.
5. The automobile energy absorption box according to claim 4, wherein each group of weight reducing holes comprises a first weight reducing hole (21) formed in the top plate (10) and a plurality of second weight reducing holes (22) formed in the two side plates (11), the two first weight reducing holes (21) located at two ends of the top plate (10) are circular holes, the other first weight reducing holes (21) located in the top plate (10) are oblong holes, long axes of the oblong first weight reducing holes (21) are parallel to the width direction of the top plate (10), and the second weight reducing holes (22) are circular holes.
6. The automobile energy absorption box as claimed in claim 5, wherein centers of the second lightening holes (22) at corresponding positions in each group of lightening holes are collinear, and diameters of the collinear second lightening holes (22) are gradually increased from a smaller end of an energy absorption box opening to a larger end of the energy absorption box opening.
7. An automobile energy-absorbing box according to any one of claims 3-6, characterized in that part of said crush slots (31) are recessed towards said box body, another part of said crush slots (31) are protruding towards the outside of the box body, and said crush slots (31) recessed towards the box body and said crush slots (31) protruding towards the outside of the box body are arranged alternately, and the (n +1)/2 th of said crush slots (31) on said box body protrude towards the outside of the box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121772585.0U CN216301016U (en) | 2021-07-31 | 2021-07-31 | Automobile energy absorption box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121772585.0U CN216301016U (en) | 2021-07-31 | 2021-07-31 | Automobile energy absorption box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216301016U true CN216301016U (en) | 2022-04-15 |
Family
ID=81087398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121772585.0U Active CN216301016U (en) | 2021-07-31 | 2021-07-31 | Automobile energy absorption box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216301016U (en) |
-
2021
- 2021-07-31 CN CN202121772585.0U patent/CN216301016U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201136513Y (en) | Energy-absorbing device of vehicle body | |
| CN102390432A (en) | Automobile longitudinal beam inner plate assembly | |
| CN110789479A (en) | Front-end anti-collision device of vehicle body | |
| CN110949294A (en) | Aluminum alloy automobile front anti-collision assembly capable of improving small offset collision-prevention performance | |
| CN211809466U (en) | Improve little biasing and bump crashproof performance's preceding crashproof roof beam assembly | |
| CN216301016U (en) | Automobile energy absorption box | |
| CN103523039B (en) | A kind of impact resistant aluminum alloy head under-carriage front-end architecture | |
| WO2024011998A1 (en) | Integrated cross-shaped hydroformed crash box structure for electric vehicle subframe | |
| CN216805599U (en) | Anticollision front longitudinal assembly | |
| CN115257945A (en) | Front wall lower beam structure and automobile | |
| CN102975770B (en) | Automotive floor panel | |
| CN215244716U (en) | Preceding crashproof roof beam assembly and vehicle that has it | |
| CN202783376U (en) | Girder structure of cabin | |
| CN210526649U (en) | Anti-collision energy-absorbing structure | |
| CN211809482U (en) | Aluminum alloy front collision beam assembly and automobile | |
| CN212980346U (en) | Vehicle body front end structure and vehicle | |
| CN210554642U (en) | Car anticollision roof beam energy-absorbing box cooperation turn-ups structure | |
| KR20120076228A (en) | Crash box in vehicle bumper system | |
| CN217892747U (en) | Vehicle anticollision structure and vehicle | |
| CN217396631U (en) | Frame subassembly and vehicle of vehicle | |
| CN216002494U (en) | Energy absorption device and automobile anti-collision beam | |
| CN219154427U (en) | Front anti-collision beam assembly and vehicle | |
| CN218316922U (en) | Front longitudinal beam reinforcing device | |
| CN218986544U (en) | Front-end frame structure of automobile and automobile | |
| CN215284690U (en) | Automobile anti-collision beam assembly and vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |