CN112193191A - Split type energy-absorbing box - Google Patents
Split type energy-absorbing box Download PDFInfo
- Publication number
- CN112193191A CN112193191A CN202011095721.7A CN202011095721A CN112193191A CN 112193191 A CN112193191 A CN 112193191A CN 202011095721 A CN202011095721 A CN 202011095721A CN 112193191 A CN112193191 A CN 112193191A
- Authority
- CN
- China
- Prior art keywords
- energy absorption
- absorption box
- box body
- foamed aluminum
- energy
- 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.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/24—Arrangements for mounting bumpers on vehicles
- B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
- B60R19/34—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means destroyed upon impact, e.g. one-shot type
Abstract
The invention provides a split type energy absorption box which comprises an energy absorption box body and a foamed aluminum block; the energy absorption box body comprises an outer shell and an inner shell, the outer shell and the inner shell are in bilateral symmetry, the outer shell and the inner shell are welded in bilateral symmetry, a cavity is formed between the shell walls of the outer shell and the inner shell, the foamed aluminum blocks are arranged in the cavity in an interval mode or are completely filled, and the foamed aluminum blocks are welded with the shell walls of the outer shell and the inner shell. The foaming rate of the foamed aluminum blocks filled in the cavity of the energy absorption box body is sequentially increased from front to back, and the foaming rate of the foamed aluminum blocks close to the end of the anti-collision beam is smaller than that of the foamed aluminum blocks far away from the end of the anti-collision beam. The holes of the foamed aluminum blocks at the front end of the energy absorption box connected with the anti-collision beam part in the collision process are large, so that the foamed aluminum blocks at the rear end can collapse quickly, the holes of the foamed aluminum blocks at the rear end are small, so that the foamed aluminum blocks can collapse slowly, the whole energy absorption box can collapse in a stepped manner, and the energy absorption capacity and the stability are greatly improved.
Description
Technical Field
The invention relates to the field of automobile energy absorption boxes, in particular to a split type energy absorption box.
Background
The anti-collision beam assembly is an important component of a vehicle body structure, plays a decisive role in automobile collision, can disperse collision energy to the energy-absorbing box through a high-strength structure of the anti-collision beam assembly, absorbs the collision energy through crushing deformation of the energy-absorbing box, reduces the damage degree of a vehicle in collision, protects the safety of passengers, and further plays an important role in energy absorption and force conduction in high-speed collision while reducing the maintenance cost.
Energy-absorbing box form is various on the existing market, and the material is used also differently, and common steel energy-absorbing box and steel anticollision crossbeam spiro union or welding are in the same place, and whole crashproof roof beam's weight is heavier, is difficult for realizing whole car lightweight design demand, and need use many pairs of stamping die and welding frock clamp in the manufacturing process, has caused the waste of manpower resources and energy. Meanwhile, the steel energy absorption box has more complex process procedures and an unsatisfactory energy absorption effect in the collision energy absorption process. In addition, the energy absorption box made of aluminum alloy or other energy absorption materials can meet the requirements of collision energy absorption, usually needs to be lengthened, thickened or made into a special structure, and is higher than steel in the aspect of material cost.
Also, for electric vehicles, higher driving range is a focus of consumer attention. However, the energy absorption box structure made of different materials and designed by different processes often has the problem of increasing weight and cost, and further the endurance mileage of the electric vehicle can be shortened. Two important means are mainly used for improving the driving range of the electric vehicle, one means is light weight, the other means is to improve the energy density of the battery, and the improvement of the energy density of the battery usually means that safety, circulation, rate capability and cost are sacrificed, so if the driving range is continuously improved, the competitiveness of the electric vehicle product is improved, and the necessity of light weight of the whole vehicle is particularly outstanding.
Disclosure of Invention
The invention aims to provide a split type energy absorption box which can greatly absorb impact energy in a collision process when collision occurs, improve the stability of collision deformation and meet the requirement of light weight.
The invention provides a split type energy absorption box, which comprises an energy absorption box body and a foamed aluminum block; the energy absorption box body comprises an outer shell and an inner shell, a cavity is formed between the outer shell and the shell wall of the inner shell, the foamed aluminum blocks are filled in the cavity, and the foaming rate of the foamed aluminum blocks is increased progressively from the front end of the energy absorption box body to the rear end of the energy absorption box body.
Further, the foamed aluminum blocks are filled or filled in the cavity at intervals.
Further, the energy absorption box body comprises two outer shells which are bilaterally symmetrical and two inner shells which are bilaterally symmetrical, the outer shells and the inner shells are welded together, and the foamed aluminum blocks are welded with the shell walls of the outer shells and the inner shells.
Furthermore, the foaming rate of the foamed aluminum block at the end, close to the anti-collision beam, of the energy absorption box body is smaller than that of the foamed aluminum block at the end, far away from the anti-collision beam, of the energy absorption box body, and the pores of the foamed aluminum block at the end, close to the anti-collision beam, of the energy absorption box body are larger than those of the foamed aluminum block at the end, far away from the anti-collision beam, of the energy absorption box body.
Furthermore, a plurality of crumple induction grooves are formed in the edge of the shell of the energy-absorbing box body, and the crumple induction grooves are sunken towards the inside of the energy-absorbing box body.
Furthermore, holes are formed in the left side wall and the right side wall of the shell of the energy absorption box body, the holes are turned inwards from the outside of the energy absorption box body, and the foamed aluminum block is provided with through holes corresponding to the holes.
The energy absorption box further comprises an installation block, wherein the installation block is attached to the inner side wall surface of the inner shell of the energy absorption box body and is positioned at one end far away from the anti-collision beam; the energy absorption box comprises an installation block and is characterized in that a plurality of first connection holes are formed in the installation block, and the energy absorption box body and the foamed aluminum block are provided with through holes corresponding to the first connection holes.
Further, still including set up in the installing support of both sides about the energy-absorbing box body, the installing support includes relative two mounting panels and is located the roof between the installation department, the roof is protruding to stretch out forward the mounting panel, the installing support the mounting panel with be provided with a plurality of second connecting holes on the roof, the energy-absorbing box body passes through on the mounting panel the second connecting hole with energy-absorbing box body bolted connection, through on the roof second connecting hole and crashproof crossbeam bolted connection.
Further, the outer shell and the inner shell of the energy absorption box body are made of aluminum alloy.
Further, the cross sections of the outer shell and the inner shell are both in a C shape.
The split energy absorption box provided by the invention is made of aluminum alloy and foamed aluminum material, so that the material is light in weight, and the requirement of light weight is met; simultaneously, the foaming rate of the foamed aluminum piece of filling in the energy-absorbing box adopts the differentiation to increase progressively the design according to the demand of collision energy-absorbing, the low porosity of the foaming rate of the foamed aluminum piece of that one end of being close to the anticollision crossbeam is big, the high porosity of the foaming rate of the foamed aluminum piece of that one end of keeping away from the anticollision crossbeam is little, thereby the hole of the foamed aluminum piece of the energy-absorbing box front end of connecting the anticollision crossbeam part in the collision process is big to crumple and contract very fast, thereby the hole of the foamed aluminum piece of rear end is little to crumple and contract very slowly, the crumple of whole energy-absorbing box is cascaded crumple, energy-absorbing capacity and stability all promote by a wide margin, can both play fine guard action to automobile body longeron.
Drawings
FIG. 1 is a schematic view of an assembly structure of a split energy absorption box and an anti-collision beam of the invention;
FIG. 2 is a schematic structural view of a split crash box of the present invention;
FIG. 3 is a schematic structural view of the crash box body of the present invention prior to assembly;
FIG. 4 is a schematic structural view of the energy absorption box body cavity with the aluminum foam blocks filled at intervals;
FIG. 5 is a schematic structural view of a foam aluminum block completely filled in a cavity of an energy absorption box body according to the present invention;
FIG. 6 is a cross-sectional view of the body of the crash box of the present invention;
FIG. 7 is a schematic structural view of a mounting block of the split crash box of the present invention;
FIG. 8 is a schematic structural view of a mounting bracket of the split energy absorption box of the present invention.
In the figure: 1. an energy absorption box body; 2. a housing; 3. an inner shell; 4. a foamed aluminum block; 5. a collapse inducing groove; 6. hole flanging; 7. mounting blocks; 8. mounting a bracket; 9. a first connection hole; 10. a second connection hole; 11. an anti-collision beam; 12. and (6) perforating.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in fig. 1-8, the split type energy absorption box of the invention comprises an energy absorption box body 1, a foamed aluminum block 4, a mounting block 7 and a mounting bracket 8, wherein the energy absorption box body 1 is connected with a longitudinal beam (not shown) through the mounting block 7, and the energy absorption box body 1 is connected with an anti-collision beam 11 through the mounting bracket 8.
More specifically, the energy-absorbing box body 1 comprises two bilaterally symmetrical outer shells 2 and two bilaterally symmetrical inner shells 3, the outer shells 2 and the inner shells 3 of the energy-absorbing box body 1 are made of aluminum alloy, the outer shells 2 and the inner shells 3 respectively comprise side walls and upper walls and lower walls located at the upper ends and the lower ends of the side walls, the cross sections of the outer shells 2 and the inner shells 2 are C-shaped, and the energy-absorbing box body 1 which is of a 'return' shaped structure is formed by welding the outer shells 2 and the inner shells 3 bilaterally and vertically. A cavity is formed between the outer shell 2 and the inner shell 3, and an aluminum foam block 4 is filled in the cavity and is welded with the shell walls of the outer shell 2 and the inner shell 3. The foam aluminum block 4 is arranged in the interlayer cavity of the return-shaped structure of the energy-absorbing box body 1, so that when low-speed collision occurs, energy generated during low-speed collision can be effectively absorbed through crumpling of the energy-absorbing box, and collision force is relieved. Further, the foaming rate of the foamed aluminum block 4 filled in the cavity of the energy absorption box body 1 is different from the end close to the anti-collision beam 11 to the end far away from the anti-collision beam 11 due to the requirement of collision energy absorption, the density of the foamed aluminum block 4 is sequentially increased from the front to the back, namely the foaming rate of the foamed aluminum block 4 is sequentially increased from the front to the back, and the foaming rate of the foamed aluminum block 4 close to the end of the anti-collision beam 11 is smaller than that of the foamed aluminum block 4 far away from the end of the anti-collision beam 11. Because the foaming rate of the front end of the foamed aluminum block 4 is low, the pores are large, and the foaming rate of the foamed aluminum block 4 at the rear end is high, the pores are small, so that when the vehicle collides at a medium and high speed, the foamed aluminum block 4 at the front end of the energy absorption box connected with the anti-collision beam collapses fast due to the large pores, and the foamed aluminum block 4 at the rear end of the energy absorption box collapses slowly due to the small pores, so that the whole energy absorption box is in stepped crushing energy absorption, and the collapsing form is more stable. In this embodiment, the outer shell 2 and the inner shell 3 are 6063 aluminum alloy "C" shaped bodies with the wall thickness of 1.5mm, and the thickness of the filled foamed aluminum block 4 is 10mm, because the aluminum alloy material and the foamed aluminum block 4 have lighter weight and lower self rigidity, the weight of the energy absorption box can be reduced by 0.8kg and the energy absorption effect is better compared with that of a common energy absorption box in a shape like a Chinese character 'ri' or a Chinese character 'mu'. Meanwhile, the foamed aluminum blocks 4 can be filled or filled in the cavity between the outer shell 2 and the inner shell 3 at intervals according to the actual requirement of collision.
As shown in fig. 2 and 3, a plurality of collapse induction grooves 5 are provided on 4 edges of the bilaterally symmetric outer shell 2 of the crash box body 1, and the collapse induction grooves 5 are recessed into the crash box body 1 to serve as collapse induction at the time of collision.
As shown in fig. 2 to 5, the bilateral symmetric shells 2 of the crash box body 1 are provided with flanged holes 6, and the flanged holes 6 are turned inwards from the outside of the crash box body 1. In the embodiment, the hole flanging 6 is rectangular, and has the length of 38mm, the width of 22mm and the height of 5 mm. The setting of hole flanging 6 can play the effect of fixed foamed aluminum piece 4 in the assembling process, and the foamed aluminum piece 4 of filling simultaneously is opened at the relevant position has the corresponding shape through-hole to be convenient for install, and simultaneously, hole flanging 6 also can play the effect of the guidance of collapsing as the bullport when the collision.
As shown in fig. 1-3, 5 and 7, the mounting block 7 is attached to the inner side wall surface of the inner shell 3 of the crash box body 1 at the end far from the anti-collision beam 11; be provided with a plurality of first connecting holes 9 on the installation piece 7, energy-absorbing box body 1 is provided with the perforation 12 that corresponds with first connecting hole 9 with foamed aluminum piece 4, carries out bolted connection with energy-absorbing box body 1 and longeron through perforation 12 and first connecting hole 9. The mounting block 7 is arranged at one end, far away from the anti-collision cross beam 11, of the energy absorption box body 1, plays a role in mounting and positioning the foamed aluminum block 4, and meanwhile can prevent the energy absorption box body 1 and the foamed aluminum block 4 from being crushed under large torque force, so that the connection strength between the energy absorption box body 1 and the longitudinal beam can be enhanced.
As shown in fig. 1, 2 and 8, the mounting bracket 8 includes two opposite mounting plates and a top plate located between the mounting plates, the top plate protrudes forward out of the mounting plates, a plurality of second connecting holes 10 are provided on the mounting plates and the top plate of the mounting bracket 8, the energy-absorbing box body 1 is connected with the energy-absorbing box body 1 through the second connecting holes 10 on the mounting plates, and is connected with the anti-collision beam 11 through the second connecting holes 10 on the top plate.
The split energy-absorbing box can be arranged at the front section of an automobile (namely, the energy-absorbing box body 1 is in bolted connection with a front anti-collision cross beam through the mounting bracket 8, and the energy-absorbing box body 1 is in bolted connection with a front longitudinal beam through the mounting block 7), and can also be arranged at the rear section of the automobile (namely, the energy-absorbing box body 1 is in bolted connection with a rear anti-collision cross beam through the mounting bracket 8, and the energy-absorbing box body 1 is in bolted connection with a rear longitudinal beam through the mounting block 7).
In conclusion, the split energy absorption box provided by the invention is made of aluminum alloy and foamed aluminum materials, so that the material is light in weight, and the requirement of light weight is met; simultaneously, the foaming rate of the foamed aluminum block 4 of filling in the energy-absorbing box body 1 adopts the differentiation to increase progressively the design according to the demand of collision energy-absorbing, the low porosity of the foaming rate of the foamed aluminum block 4 of that one end of being close to the anticollision crossbeam is big, the high porosity of the foaming rate of the foamed aluminum block 4 of that one end of keeping away from the anticollision crossbeam is little, 4 holes of the foamed aluminum block of the energy-absorbing box front end of being connected with the anticollision crossbeam in the collision process are broken greatly and are contracted very fast, 4 holes of the foamed aluminum block of rear end are broken and are contracted slowly for a short time, the collapse of whole energy-absorbing box is cascaded collapse, energy-absorbing ability and stability all promote by a wide margin, can both play fine guard action to automobile body longeron.
As used herein, the ordinal adjectives "first", "second", "third", etc., used to describe an element are merely to distinguish between similar elements, and do not imply that the elements so described must be in a given sequence, either temporally, spatially, in ranking, or in any other manner.
As used herein, the meaning of "a plurality" or "a plurality" is two or more unless otherwise specified.
As used herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, including not only those elements listed, but also other elements not expressly listed.
In this document, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "end", "inner", "outer", "vertical", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the sake of clarity and convenience of description of the technical solutions, and thus, should not be construed as limiting the present invention.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. The utility model provides a split type energy-absorbing box which characterized in that: the energy absorption box comprises an energy absorption box body (1) and a foamed aluminum block (4); the energy absorption box body (1) comprises an outer shell (2) and an inner shell (3), a cavity is formed between the outer shell (2) and the wall of the inner shell (3), the foamed aluminum block (4) is filled and arranged in the cavity, and the foaming rate of the foamed aluminum block (4) is increased progressively from the front end of the energy absorption box body (1) to the rear end of the energy absorption box body (1).
2. The split energy absorption box of claim 1, wherein: the foamed aluminum blocks (4) are filled or filled in the cavity at intervals.
3. The split energy absorption box of claim 1, wherein: the energy absorption box body (1) comprises two bilaterally symmetrical outer shells (2) and two bilaterally symmetrical inner shells (3), the outer shells (2) and the inner shells (3) are welded together, and the foamed aluminum blocks (4) are welded with the shell walls of the outer shells (2) and the inner shells (3).
4. The split energy absorption box of claim 1, wherein: the foaming rate of the foamed aluminum block (4) at the end, close to the anti-collision cross beam (11), of the energy absorption box body (1) is smaller than that of the foamed aluminum block (4) at the end, far away from the anti-collision cross beam (11), of the energy absorption box body (1), and the pores of the foamed aluminum block (4) at the end, close to the anti-collision cross beam (11), of the energy absorption box body (1) are larger than those of the foamed aluminum block (4) at the end, far away from the anti-collision cross beam (11), of the energy absorption box body (1).
5. The split energy absorption box of claim 1, wherein: the energy-absorbing box is characterized in that a plurality of crumple inducing guide grooves (5) are formed in the edge of the shell (2) of the energy-absorbing box body (1), and the crumple inducing guide grooves (5) are concave towards the inside of the energy-absorbing box body (1).
6. The split energy absorption box of claim 1, wherein: the energy absorption box is characterized in that holes (6) are formed in the left side wall and the right side wall of the shell (2) of the energy absorption box body (1), the holes (6) are inwards turned from the outside of the energy absorption box body (1), and through holes corresponding to the holes (6) are formed in the foamed aluminum block (4).
7. The split energy absorption box of claim 1, wherein: the energy absorption box further comprises an installation block (7), wherein the installation block (7) is attached to the inner side wall surface of the inner shell (3) of the energy absorption box body (1) and is positioned at one end far away from the anti-collision cross beam (11); the energy absorption box is characterized in that a plurality of first connecting holes (9) are formed in the mounting block (7), and the energy absorption box body (1) and the foamed aluminum block (4) are provided with through holes (12) corresponding to the first connecting holes (9).
8. The split energy absorption box of claim 1, wherein: still including set up in installing support (8) of both sides about energy-absorbing box body (1), installing support (8) are including relative two mounting panels and are located the roof between the installation department, the roof is protruding to stretch out forward the mounting panel, installing support (8) the mounting panel with be provided with a plurality of second connecting holes (10) on the roof, energy-absorbing box body (1) passes through on the mounting panel second connecting hole (10) with energy-absorbing box body (1) bolted connection, through on the roof second connecting hole (10) and crashproof crossbeam (11) bolted connection.
9. The split energy absorption box of claim 1, wherein: the outer shell (2) and the inner shell (3) of the energy absorption box body (1) are made of aluminum alloy.
10. The split energy absorption box of claim 1, wherein: the cross sections of the outer shell (2) and the inner shell (3) are C-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011095721.7A CN112193191A (en) | 2020-10-14 | 2020-10-14 | Split type energy-absorbing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011095721.7A CN112193191A (en) | 2020-10-14 | 2020-10-14 | Split type energy-absorbing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112193191A true CN112193191A (en) | 2021-01-08 |
Family
ID=74009663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011095721.7A Pending CN112193191A (en) | 2020-10-14 | 2020-10-14 | Split type energy-absorbing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112193191A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102390136A (en) * | 2011-08-16 | 2012-03-28 | 西安交通大学 | Method for preparing multilayered lattice metal and foamed aluminium composite material |
| CN102416713A (en) * | 2011-08-16 | 2012-04-18 | 西安交通大学 | Lattice-gradient foamed aluminum composite material and preparation method thereof |
| CN102700488A (en) * | 2012-06-12 | 2012-10-03 | 湖南大学 | Buffering energy-absorbing structure |
| CN202783043U (en) * | 2012-08-30 | 2013-03-13 | 浙江吉利汽车研究院有限公司杭州分公司 | Automobile energy adsorption box |
| CN108099833A (en) * | 2017-11-14 | 2018-06-01 | 吉利汽车研究院（宁波）有限公司 | Energy absorption device and automobile |
| CN109131178A (en) * | 2018-08-28 | 2019-01-04 | 华南理工大学 | A kind of novel front anticollision beam of automobile assembly |
-
2020
- 2020-10-14 CN CN202011095721.7A patent/CN112193191A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102390136A (en) * | 2011-08-16 | 2012-03-28 | 西安交通大学 | Method for preparing multilayered lattice metal and foamed aluminium composite material |
| CN102416713A (en) * | 2011-08-16 | 2012-04-18 | 西安交通大学 | Lattice-gradient foamed aluminum composite material and preparation method thereof |
| CN102700488A (en) * | 2012-06-12 | 2012-10-03 | 湖南大学 | Buffering energy-absorbing structure |
| CN202783043U (en) * | 2012-08-30 | 2013-03-13 | 浙江吉利汽车研究院有限公司杭州分公司 | Automobile energy adsorption box |
| CN108099833A (en) * | 2017-11-14 | 2018-06-01 | 吉利汽车研究院（宁波）有限公司 | Energy absorption device and automobile |
| CN109131178A (en) * | 2018-08-28 | 2019-01-04 | 华南理工大学 | A kind of novel front anticollision beam of automobile assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202827752U (en) | Direct impact conquassation energy absorption structure of passenger car and passenger car with the same | |
| CN104760554A (en) | Automotive insertion sheet filling type foamed aluminum energy absorption box | |
| CN102145678A (en) | Motor vehicle front structure | |
| CN111301525A (en) | Automobile front longitudinal beam filled with negative Poisson ratio honeycomb material | |
| CN111376986B (en) | Front structure of automobile body frame | |
| CN204526875U (en) | A kind of driving platform and use the passenger vehicle of this driving platform | |
| CN102145677A (en) | Motor vehicle forward structure | |
| CN211809466U (en) | Improve little biasing and bump crashproof performance's preceding crashproof roof beam assembly | |
| CN112193191A (en) | Split type energy-absorbing box | |
| CN206954313U (en) | A kind of front rail structure of automobile | |
| CN210882325U (en) | Crumple energy-absorbing connecting device of front section of automobile longitudinal beam | |
| CN204641630U (en) | Automobile-used inserted sheet filled type foamed aluminium energy-absorption box | |
| CN210554642U (en) | Car anticollision roof beam energy-absorbing box cooperation turn-ups structure | |
| CN115257931A (en) | Integrated cross-shaped inner high-pressure forming energy absorption box structure of auxiliary frame of electric vehicle | |
| CN212709293U (en) | Lightweight car bumper crossbeam | |
| CN213109504U (en) | Collision combined structure and vehicle with same | |
| CN213262624U (en) | Reinforcing structure of vehicle threshold beam, vehicle threshold beam assembly and vehicle | |
| CN110481642B (en) | Small offset anti-collision assembly of passenger car | |
| CN211391176U (en) | Automobile anti-collision beam and bus | |
| CN209833565U (en) | Automobile threshold anticollision box assembly | |
| CN217753894U (en) | Collision energy absorption device, body in white and vehicle | |
| CN205836946U (en) | A kind of non-homogeneous filled type endergonic structure of foamed aluminium | |
| CN219163568U (en) | Novel CTC battery package box and battery package | |
| CN219728335U (en) | A post lower extreme additional strengthening and be equipped with its vehicle | |
| CN216833914U (en) | Anti-collision threshold structure for automobile side column collision accident |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220322 Address after: 310051 No. 1760, Jiangling Road, Hangzhou, Zhejiang, Binjiang District Applicant after: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. Applicant after: Zhejiang liankong Technology Co.,Ltd. Address before: 310051 No. 1760, Jiangling Road, Hangzhou, Zhejiang, Binjiang District Applicant before: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. Applicant before: GEELY AUTOMOBILE RESEARCH INSTITUTE (NINGBO) Co.,Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210108 |