CN219584135U - Energy-absorbing box structure, anti-collision beam and vehicle - Google Patents
Energy-absorbing box structure, anti-collision beam and vehicle Download PDFInfo
- Publication number
- CN219584135U CN219584135U CN202320808584.XU CN202320808584U CN219584135U CN 219584135 U CN219584135 U CN 219584135U CN 202320808584 U CN202320808584 U CN 202320808584U CN 219584135 U CN219584135 U CN 219584135U
- Authority
- CN
- China
- Prior art keywords
- box body
- box
- vehicle
- energy
- collision
- 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
Landscapes
- Vibration Dampers (AREA)
Abstract
The utility model provides an energy absorption box structure, an anti-collision beam and a vehicle, wherein the energy absorption box structure comprises a first box body and a second box body which are sleeved together, one of the first box body and the second box body is provided with a concave part, the other one of the first box body and the second box body is provided with a convex part, and the convex part is embedded into the concave part; when the external collision force is greater than a preset threshold value, the protruding part can be separated from the concave part, and the first box body can slide relative to the second box body. According to the energy absorption box structure, when the external collision force is larger than the preset threshold value, the protruding part can be separated from the concave part, and the first box body and the second box body can slide relatively, so that parts such as an anti-collision beam connected to the front end of the energy absorption box structure of the automobile body can be driven to move backwards, the collision force on legs of a pedestrian can be reduced, and the injury degree on the legs of the pedestrian is reduced.
Description
Technical Field
The utility model relates to the technical field of vehicle parts, in particular to an energy absorption box structure, and simultaneously relates to an anti-collision beam with the energy absorption box structure and a vehicle with the anti-collision beam.
Background
Pedestrian protection is an important component of passive safety, and mainly comprises a head protection part and a leg protection part, wherein the leg protection part is closely related to an automobile front end anti-collision beam. The anti-collision beam is generally connected with the longitudinal beam of the vehicle body through the energy absorption box, and the energy absorption box can collapse when the vehicle collides, so that the longitudinal beam of the vehicle body and other parts are protected, and the maintenance cost is reduced.
However, in the event of a low energy accident such as a low speed collision of the legs of a pedestrian, the crash boxes are not deformed at all, the crash beams cannot move backwards, and the legs directly strike the crash beams, causing serious injury. At present, part of vehicle types are designed by reserving enough space between an anti-collision beam and a front bumper skin and adding energy-absorbing foam or an energy-absorbing sheet metal bracket between the anti-collision beam and the front bumper skin so as to reduce the injury to the legs of pedestrians. However, due to the influence of the modeling and the front suspension length, the distance between some anti-collision beams and the front bumper skin is insufficient, an energy absorption structure cannot be arranged, and the cost and the weight of the whole vehicle are increased due to the addition of the energy absorption piece.
Disclosure of Invention
In view of the foregoing, the present utility model is directed to a crash box structure for reducing collision injury to pedestrians.
In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:
an energy absorption box structure comprises a first box body and a second box body which are sleeved together;
one of the first box body and the second box body is provided with a concave part, the other one of the first box body and the second box body is provided with a convex part, and the convex part is embedded into the concave part; when the external collision force is greater than a preset threshold value, the protruding part can be separated from the concave part, and the first box body can slide relative to the second box body.
Further, the second box body is sleeved outside the first box body, and the outer wall of the first box body is attached to the inner wall of the second box body.
Further, the concave part comprises a pit arranged on the first box body, the convex part comprises a protrusion arranged on the second box body, and the protrusion protrudes towards the inside of the second box body.
Further, a guiding groove is formed in the first box body, the guiding groove extends from the pit to the front end of the first box body, and the guiding groove is used for guiding the first box body to slide relative to the second box body.
Further, the pits are a plurality of pits arranged at intervals along the circumferential direction of the first box body, and the protrusions are arranged in one-to-one correspondence with the pits.
Further, the cross section of the first box body is polygonal, and the second box body is adapted to the first box body;
the concave pits are formed in the side walls of the first box body, and the protrusions are formed in the side walls of the second box body.
Further, a crumple is provided on the first and/or second casing.
Further, a connecting plate is arranged on the second box body, and the second box body is connected with the longitudinal beam of the vehicle body through the connecting plate.
Compared with the prior art, the utility model has the following advantages:
according to the energy absorption box structure, when the external collision part force is smaller than the preset threshold value, the first box body and the second box body are kept relatively static, the vehicle is not damaged, and the maintenance cost is avoided; simultaneously, when outside collision force is greater than the threshold value of predetermineeing, the depressed part can deviate from to the bulge, and first box body can slide relatively with the second box to can drive parts such as the crashproof roof beam of connecting at this automobile body energy-absorbing box structure front end and move backward, and then can alleviate the impact dynamics to pedestrian's shank, reduce the injury degree to pedestrian's shank.
In addition, the outer wall of the first box body is attached to the inner wall of the second box body, so that collision energy can be absorbed by friction force generated by the first box body and the second box body when the first box body and the second box body relatively move, and the protection effect on pedestrians is improved. The concave part comprises a pit, the convex part comprises a bulge, the structure is simple, and the design and implementation are convenient. Through set up the guiding groove on first box body, can guide first box body and the relative slip of second box body, be convenient for first box body or second box body and shift backward fast, do benefit to the injury that reduces the pedestrian.
In addition, the pits are formed in the plurality of grooves which are formed in the circumferential direction of the first box body at intervals, so that the connection strength between the first box body and the second box body can be ensured. The concave pits are formed in the side walls of the first box body, the protrusions are formed in the side walls of the second box body, and therefore connection uniformity between the first box body and the second box body can be improved. The first box body and/or the second box body are/is provided with the crumple part, so that collision energy can be further absorbed, and the protection effect on pedestrians is improved. Through set up the connecting plate on the second box body, the second box body of being convenient for links to each other with the automobile body longeron.
In addition, the utility model also provides an anti-collision beam, which comprises an anti-collision beam body and the energy absorption box structure arranged on the anti-collision beam body.
Another object of the utility model is to propose a vehicle in which an impact beam as described above is provided.
The vehicle and the anti-collision beam have the same beneficial effects as those of the energy absorption box structure compared with the prior art, and are not repeated here.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
FIG. 1 is a schematic structural view of an energy absorber box structure according to an embodiment of the present utility model;
FIG. 2 is a schematic view of a crash box structure according to an embodiment of the utility model in another view;
FIG. 3 is a schematic view of a crash box structure according to an embodiment of the utility model in a further view;
FIG. 4 is a cross-sectional view taken along the direction A-A in FIG. 3;
fig. 5 is a schematic structural view of a first case according to an embodiment of the present utility model;
fig. 6 is a schematic structural diagram of a second case according to an embodiment of the present utility model.
Reference numerals illustrate:
1. a first case; 2. a second case; 3. a connecting plate;
101. a guide groove; 102. pit;
201. a protrusion; 301. and a connection hole.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. In addition, the terms "first," "second," are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, in the description of the present utility model, the terms "mounted," "connected," and "connected," are to be construed broadly, unless otherwise specifically defined. For example, the connection can be fixed connection, detachable connection or integrated connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in combination with specific cases.
The utility model will be described in detail below with reference to the drawings in connection with embodiments.
The present embodiment relates to a crash box structure which is mainly directed to protection of pedestrians at a low-speed collision, and which includes a first box body 1 and a second box body 2 that are sleeved together.
Wherein, be equipped with the depressed part on one of them 1 and the second box body 2, be equipped with the bulge on the other of 1 and the second box body 2, the bulge embedding is in the depressed part. And when the external collision force is greater than a preset threshold value, the protruding part can be separated from the recessed part, and the first box body 1 and the second box body 2 slide relatively.
According to the energy absorption box structure, when the external collision part force is smaller than the preset threshold value, the first box body 1 and the second box body 2 are kept relatively static, the vehicle cannot be damaged, and maintenance cost is avoided. Simultaneously, when outside collision force is greater than the threshold value of predetermineeing, the depressed part can deviate from to the bulge, and first box body 1 can produce relative slip with second box body 2 to can drive parts such as the crashproof roof beam of connecting at this automobile body energy-absorbing box structure front end and move backward, and then can alleviate the striking dynamics to pedestrian's shank, reduce the injury degree to pedestrian's shank.
Based on the above general description, an exemplary structure of the crash box structure of the present embodiment is shown with reference to fig. 1 to 4, wherein, as a specific embodiment, the second box body 2 is sleeved outside the first box body 1, and the first box body 1 is disposed at the front end of the vehicle and is used for connection with the impact beam in a specific application. And the second case 2 is disposed at the rear end of the first case 1 and is adapted to be connected to a vehicle body side member. Of course, it is also possible to cover the first casing 1 outside the second casing 2 in addition to the second casing 2.
In this embodiment, as a preferred embodiment, the outer wall of the first case 1 is attached to the inner wall of the second case 2. By the arrangement, collision energy can be absorbed by utilizing friction force generated by the first box body 1 and the second box body 2 when the first box body and the second box body relatively move, so that the protection effect on pedestrians is improved. Furthermore, as a preferred embodiment, the cross section of the first casing 1 is polygonal, and the second casing 2 is adapted to the first casing 1, i.e. the cross sections of the two are identical and of uniform size. By the design, the first box body 1 and the second box body 2 can be prevented from rotating, and connection stability between the first box body and the second box body is improved.
As a specific embodiment, the cross sections of the first case 1 and the second case 2 are rectangular, as shown in fig. 1 and 2. It will be appreciated that the cross sections of the first and second cases 1, 2 may be pentagonal or hexagonal, in addition to rectangular. In addition, instead of providing the cross sections of the first casing 1 and the second casing 2 as polygons, it is also possible to provide them as circles.
For convenience of processing and manufacturing, as shown in fig. 5 and 6, the concave portion includes a concave pit 102 provided on the first casing 1, and the convex portion includes a convex 201 provided on the second casing 2, the convex 201 protruding toward the inside of the second casing 2. In this embodiment, in order to ensure the connection strength between the first case 1 and the second case 2, the plurality of pits 102 are arranged at intervals along the circumferential direction of the first case 1, and the protrusions 201 are arranged in one-to-one correspondence with the pits 102.
As a specific embodiment, as shown in fig. 5 and 6, each side wall of the first case 1 is provided with a pit 102, and each side wall of the second case 2 is provided with a protrusion 201. In addition, in order to facilitate the connection of the first case 1 and the second case 2, the protrusion 201 has a hemispherical shape, and the recess 102 is formed in a shape following the protrusion 201. By arranging the protrusion 201 in a hemispherical shape, the smoothness of the end surface of the protrusion 201 can be improved, the protrusion 201 can be conveniently inserted into the pit 102, and meanwhile, when the external collision force is larger than a preset threshold value, the protrusion 201 can be conveniently separated from the pit 102, so that the first box body 1 is separated from the connection with the second box body 2.
In this embodiment, as a further embodiment, as shown in fig. 5, the first case 1 is provided with guide grooves 101, and the guide grooves 101 are arranged in one-to-one correspondence with the pits 102. Further, the guide groove 101 extends from the recess 102 to the front end of the first casing 1, and the guide groove 101 is used to guide the first casing 1 to slide with respect to the second casing 2. By providing the guide groove 101, the projection 201 can slide in the guide groove 101, and the first casing 1 is guided to slide into the second casing 2 to absorb collision energy. In addition, in the implementation, the sliding resistance between the first box body 1 and the second box body 2 can be controlled by adjusting the depth and the width of the guide groove 101 so as to achieve the optimal energy absorption effect and better protect the legs of pedestrians.
It should be noted that, in the implementation, the height and number of the protrusions 201 may be set according to a preset threshold value, so that the connection force between the first case 1 and the second case 2 is equal to the preset threshold value, and the determination of the preset threshold value generally needs to be obtained according to multiple experiments. Moreover, the impact force below the preset threshold should not cause injury to the legs of the pedestrian, while the impact force above the preset threshold can drive the protrusion 201 out of the pit 102 or the protrusion 201 breaks, so that the first case 1 can slide relative to the second case 2, absorbing the impact energy.
Furthermore, in the present embodiment, as shown in fig. 2 and 4, a connection plate 3 is provided on the second case 2, and the second case 2 is connected to the vehicle body side member through the connection plate 3. The connection plate 3 is in a ring shape as a specific embodiment, and can be specifically connected with the second box body 2 through Zhou Juaner welding. In addition, in order to facilitate the connection of the connection plate 3 with the vehicle body side member, as shown in fig. 2, four connection holes 301 are provided on the connection plate 3 at intervals along the circumferential direction of the second case 2. Of course, the number of the connection holes 301 is not limited to four, and can be adjusted accordingly according to design requirements.
In this embodiment, in order to further improve the pedestrian protection effect, the first case 1 and the second case 2 may be provided with crush portions, and the crush portions may be conventional structures such as conventional crush ribs and crush holes, which are not described in detail in this embodiment. In addition, instead of providing the crush portions in both the first case 1 and the second case 2, only the crush portions may be provided in the first case 1 or the second case 2.
Through adopting above structure, the energy-absorbing box structure of this embodiment, when outside collision force is less than the threshold value of predetermineeing, first box body 1 and second box body 2 keep motionless, can not produce the damage to the vehicle, avoid producing cost of maintenance. When the collision occurs with a pedestrian, and the external collision force is greater than the preset threshold value, the protrusion 201 can be separated from the pit 102, and the first box body 1 drives the anti-collision beam to quickly move backwards and slide into the second box body 2, so that the aim of reducing the injury to the legs of the pedestrian is fulfilled. When the vehicle collides with other vehicles, the first box body 1 slides to the bottom of the second box body 2, so that the first box body and the second box body are overlapped together, and then the first box body and the second box body are crushed together, so that the collision capacity can be effectively absorbed, and the protection function same as that of a common energy absorption box is achieved.
In addition, the embodiment also relates to an anti-collision beam, which comprises an anti-collision beam body and the energy absorption box structure arranged on the anti-collision beam body.
As a preferred embodiment, the two ends of the anti-collision beam body are both provided with the energy absorption box structures, and the anti-collision beam body is connected with the longitudinal beam of the vehicle body through the energy absorption box structures. Of course, only one end of the anti-collision beam body is provided with the energy absorption box structure, and the other end of the anti-collision beam body is provided with other energy absorption structures. In addition, the structure of the anti-collision beam body is just enough to refer to the prior art, and is not described in detail herein.
Furthermore, the present embodiment relates to a vehicle in which the impact beam as described above is provided.
The vehicle of this embodiment has all the beneficial effects of the above-mentioned energy-absorbing box structure, and will not be described here again.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (10)
1. An energy-absorbing box structure, its characterized in that:
comprises a first box body (1) and a second box body (2) which are sleeved together;
one of the first box body (1) and the second box body (2) is provided with a concave part, the other one of the first box body (1) and the second box body (2) is provided with a convex part, and the convex part is embedded into the concave part;
when the external collision force is larger than a preset threshold value, the protruding part can be separated from the concave part, and the first box body (1) and the second box body (2) can slide relatively.
2. The energy absorber structure of claim 1, wherein:
the second box body (2) is sleeved outside the first box body (1), and the outer wall of the first box body (1) is attached to the inner wall of the second box body (2).
3. The energy absorber structure of claim 1, wherein:
the concave part comprises a pit (102) arranged on the first box body (1), the convex part comprises a protrusion (201) arranged on the second box body (2), and the protrusion (201) protrudes towards the inside of the second box body (2).
4. The energy absorber structure of claim 3 wherein:
the first box body (1) is provided with a guide groove (101), the guide groove (101) extends from the pit (102) to the front end of the first box body (1), and the guide groove (101) is used for guiding the first box body (1) to slide relative to the second box body (2).
5. The energy absorber structure of claim 3 wherein:
the pits (102) are arranged at intervals along the circumferential direction of the first box body (1), and the protrusions (201) are arranged in one-to-one correspondence with the pits (102).
6. The energy absorber structure of claim 5, wherein:
the cross section of the first box body (1) is polygonal, and the second box body (2) is adapted to the first box body (1);
the concave pits (102) are formed in each side wall of the first box body (1), and the protrusions (201) are formed in each side wall of the second box body (2).
7. The energy absorber structure of claim 1, wherein:
the first box body (1) and/or the second box body (2) are/is provided with a crumple part.
8. The energy absorber box structure of any of claims 1-7, wherein:
the second box body (2) is provided with a connecting plate (3), and the second box body (2) is connected with a longitudinal beam of the vehicle body through the connecting plate (3).
9. An anti-collision beam, characterized in that:
comprising an impact beam body and the energy-absorbing box structure of any one of claims 1 to 8 provided on the impact beam body.
10. A vehicle, characterized in that:
the vehicle is provided with the impact beam according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320808584.XU CN219584135U (en) | 2023-04-12 | 2023-04-12 | Energy-absorbing box structure, anti-collision beam and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320808584.XU CN219584135U (en) | 2023-04-12 | 2023-04-12 | Energy-absorbing box structure, anti-collision beam and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219584135U true CN219584135U (en) | 2023-08-25 |
Family
ID=87696331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320808584.XU Active CN219584135U (en) | 2023-04-12 | 2023-04-12 | Energy-absorbing box structure, anti-collision beam and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219584135U (en) |
-
2023
- 2023-04-12 CN CN202320808584.XU patent/CN219584135U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101427921B1 (en) | Impact absorbing device for vehicle | |
| JP6200966B2 (en) | Rail vehicle collision energy absorber | |
| JP5527828B2 (en) | Vehicle front structure | |
| KR101448745B1 (en) | Impact absorbing device for vehicle | |
| CN204845824U (en) | Novel anticollision roof beam energy -absorbing box | |
| US20100072764A1 (en) | Bumper-Stay Structure for Vehicle | |
| CN204821718U (en) | Car longitudinal beams , sub vehicle frame assembly and car | |
| CN113263996A (en) | Bumper of motor vehicle | |
| JP2008174174A (en) | Door structure for automobile | |
| CN207328604U (en) | Front longitudinal beam structure of automobile | |
| CN219584135U (en) | Energy-absorbing box structure, anti-collision beam and vehicle | |
| JP4577826B2 (en) | Bumper beam structure for vehicles | |
| US6585318B1 (en) | Safety seat | |
| CN215706156U (en) | Vehicle body front portion structure and vehicle | |
| JP6134972B2 (en) | Bumper structure | |
| AU2022424063A1 (en) | Vehicle engine cabin structure and vehicle | |
| CN212172147U (en) | Front anti-collision beam assembly, energy absorption plate and vehicle | |
| CN209492602U (en) | Front rail structure for automobile | |
| CN204161278U (en) | A kind of front anti-collision beam structure of vehicle | |
| CN209833565U (en) | Automobile threshold anticollision box assembly | |
| CN107662566B (en) | Anticollision roof beam assembly and vehicle | |
| CN209776362U (en) | Automobile energy absorption box and automobile | |
| CN220577200U (en) | Energy-absorbing box, energy-absorbing structure and car | |
| KR102588953B1 (en) | Front lower crash body-structure of vehicle | |
| CN217396631U (en) | Frame subassembly and vehicle of vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |