CN210126556U - Aluminum alloy frame front section structure for car and car - Google Patents
Aluminum alloy frame front section structure for car and car Download PDFInfo
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- CN210126556U CN210126556U CN201920506955.2U CN201920506955U CN210126556U CN 210126556 U CN210126556 U CN 210126556U CN 201920506955 U CN201920506955 U CN 201920506955U CN 210126556 U CN210126556 U CN 210126556U
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 60
- 230000003014 reinforcing effect Effects 0.000 claims description 17
- 238000009434 installation Methods 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 230000002596 correlated effect Effects 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000004512 die casting Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to an aluminum alloy frame anterior segment structure and car for car belongs to vehicle structure technical field, include: two symmetrically arranged front longitudinal beams; a cross beam connecting the two front longitudinal beams; each connecting beam is connected with the front longitudinal beam and is used for connecting a cross beam, a front dash board, a front threshold beam and a floor longitudinal beam of an aluminum alloy frame of the car; and each energy-absorbing tower piece is connected with one side of the front longitudinal beam, which is far away from the cross beam, and is used for connecting the connecting beam, and the energy-absorbing tower pieces are positioned on one side of the connecting beam, which is close to the car lamp. The utility model discloses an aluminum alloy frame anterior segment structure is used for absorbing the energy that is connected along the front longitudinal beam transmission in order to reduce this absorbed energy of linking up the roof beam through set up the energy-absorbing formula tower spare that is connected with linking up the roof beam on the front longitudinal beam, and then reduces and link up the not hard up or deformation that other parts that the roof beam is related lead to because of the impact is too strong, has guaranteed the safety of personnel and key equipment.
Description
Technical Field
The utility model belongs to the technical field of vehicle structure, concretely relates to an aluminum alloy frame anterior segment structure and car for car.
Background
With the increase of the number of cars and the continuous improvement of the driving speed, the driving safety is more and more important, the car safety, particularly the collision safety, is more and more concerned, and the quality of the car frame performance directly determines the safety problem of passengers in the car in the collision process. The car comprises a fuel car, an electric car and the like, and can be specifically selected from a two-compartment car, a three-compartment car, a pick-up truck, an SUV, an MPV, a minibus, an off-road vehicle and the like.
The front end structure of the existing car aluminum alloy frame mainly comprises two front longitudinal beams, a cross beam for connecting the two front longitudinal beams and a connecting beam which is connected with the front longitudinal beams and is used for connecting a front wall plate, a front threshold beam and a floor longitudinal beam of the aluminum alloy frame. When the vehicle is in direct collision, the front longitudinal beam absorbs energy generated by the direct collision and transmits partial energy to the connecting beam, so that the front longitudinal beam and the connecting beam are deformed, the front wall plate connected with the connecting beam is loosened, and the front wall plate is flushed into a cab under the driving of direct collision impact force, so that the life safety of people in the vehicle is directly threatened.
Therefore, people hope to reduce the deformation risk generated by the connecting beam as much as possible when the vehicle is in violent collision, and further better ensure the safety of personnel and key equipment in the vehicle.
SUMMERY OF THE UTILITY MODEL
In order to solve the above-mentioned whole or position problem, the utility model aims at providing an aluminum alloy frame anterior segment structure for car, when the vehicle takes place violent the collision, this aluminum alloy frame anterior segment structure can reduce the deformation risk or the deformation degree that link up the roof beam, and then guarantees the safety of personnel in the car and key equipment better.
The utility model provides an aluminum alloy frame anterior segment structure for car, it includes: two symmetrically arranged front longitudinal beams; the cross beam is connected with the two front longitudinal beams; the two connecting beams are connected with the front longitudinal beam and are used for connecting a cross beam, a front wall plate, a front threshold beam and a floor longitudinal beam of an aluminum alloy frame of the car; each energy-absorbing tower piece is connected with one side, far away from the cross beam, of the front longitudinal beam and is used for being connected with the connecting beam, and the energy-absorbing tower pieces are located on one side, close to the car lamps, of the connecting beam.
Furthermore, the front longitudinal beam is of a hollow tube structure, and the cross section of the front longitudinal beam is in a shape like a Chinese character 'ri' or a Chinese character 'tian'; the front side members have side member bent portions bent outward in the vehicle width direction at rear portions in the front-rear direction, the cross member is connected to inner sides of the two side member bent portions, and the connecting member is connected to outer sides of the side member bent portions.
The energy-absorbing tower further comprises a first connecting member connected with the longitudinal beam and the transverse beam, and the first connecting member is used for connecting the energy-absorbing tower and the connecting beam;
the first connecting component comprises a first mounting part connected with the longitudinal beam, a second mounting part connected with the transverse beam and the first mounting part, a third mounting part connected with the energy-absorbing tower piece and the first mounting part, and a fourth mounting part connected with the connecting beam, the first mounting part and the second mounting part; and a reinforcing rib is arranged between the first installation part and the second installation part.
Furthermore, the energy-absorbing tower part and the connecting beam are both vacuum die-casting members made of aluminum alloy, the front longitudinal beam and the cross beam are extruded parts made of aluminum alloy, and the first connecting member is an aluminum alloy die-casting member.
And the second connecting member is connected with one side of the tail end of the front longitudinal beam, which is far away from the cross beam, and is used for connecting the energy-absorbing tower piece and the connecting beam.
Furthermore, the linking beam comprises a frame body and a plurality of partition plates which divide the inner cavity of the frame body into a plurality of compartments and are connected in a staggered mode, and the frame body is used for connecting the cross beam, the front wall plate, the front threshold beam and the floor longitudinal beam of the aluminum alloy frame of the car.
The energy-absorbing tower further comprises a reinforcing cross beam used for connecting the two energy-absorbing tower pieces, two ends of the reinforcing cross beam are connected with a step area of the energy-absorbing tower piece close to the top of the tower, the reinforcing cross beam is an L-shaped bending plate, and a notch is formed in the L-shaped bending plate.
Further, the automobile front frame comprises a cast aluminum bracket connected between the front ends of the two front longitudinal beams, and the bracket is used for placing electrical equipment.
Further, the reinforcing ribs are triangular in shape.
The embodiment also comprises a sedan, which comprises the aluminum alloy frame front section structure shown in any one of the above.
The utility model discloses an aluminum alloy frame anterior segment structure for car is used for absorbing along the energy of front longitudinal transmission and then reduces this energy that links up the roof beam and absorb through set up the energy-absorbing formula tower spare that is connected with linking up the roof beam on the front longitudinal, because this energy-absorbing formula tower spare is located the one side that links up the roof beam and be close to the car light, when the vehicle bumps, energy-absorbing formula tower spare preferentially absorbs the energy and becomes crumple and warp, can reduce the impact that links up the roof beam and will bear at this in-process from this, and then reduce the preceding bounding wall that links up the roof beam and be correlated with, the component such as the floor longeron of front threshold roof beam and aluminum alloy frame is because of the too strong not hard up or deformation that leads to of impact. Wherein, linking up the roof beam and being connected in the flexion of front longitudinal with the crossbeam, increased the connection area who links up roof beam and front longitudinal, through the crossbeam with link up being connected of roof beam, further guaranteed the installation stability who links up the roof beam, make the collision in-process, link up the difficult not hard up and then guaranteed the installation stability rather than other parts of relevance of roof beam.
The utility model discloses an aluminum alloy frame anterior segment structure for car has spare part few, lightweight degree height, simple process, collects degree height and collision security a great deal of advantages such as good.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic perspective view of a front section structure of an aluminum alloy frame according to an embodiment of the present invention;
fig. 2 is a top perspective view of a front section structure of an aluminum alloy frame according to an embodiment of the present invention;
fig. 3 is a schematic structural view of the first coupling member shown in fig. 1.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
Fig. 1 is a schematic perspective view of a front section structure of an aluminum alloy frame according to an embodiment of the present invention; fig. 2 is a top perspective view of a front section structure of an aluminum alloy frame according to an embodiment of the present invention; fig. 3 is a schematic structural view of the first coupling member shown in fig. 1. As shown in fig. 1 to 3, the front section structure of the aluminum alloy frame of the present embodiment includes: two symmetrically arranged front longitudinal beams 1; connect the crossbeam 2 of two front longitudinal beams 1, this crossbeam 2 can promote front longitudinal beam 1's lateral stability, prevents that aluminum alloy frame anterior segment structure from the horizontal hunting, has promoted the stability of car driving in-process. The front longitudinal beam 1 is in a hollow tube structure, and the cross section of the front longitudinal beam is in a shape like a Chinese character 'ri' or a Chinese character 'tian'; the design improves the impact resistance of the front longitudinal beam 1 to bear high and low speed impact, in order to further reduce the weight of the frame, the front longitudinal beam 1 and the cross beam 2 of the embodiment are extrusion-molded parts made of aluminum alloy, the selection of the aluminum alloy material enables the front longitudinal beam 1 to absorb the impact force during collision through crumple deformation when the vehicle collides, and the preparation cost is reduced on the basis that the impact resistance of the front longitudinal beam 1 and the cross beam 2 is ensured by the molding process of extrusion molding.
The embodiment also comprises two connecting beams 3 and two energy-absorbing tower pieces 4 which are respectively connected with the two front longitudinal beams 1; each connecting beam 3 is connected with the front longitudinal beam 1 and is used for connecting a cross beam 2, a front wall plate, a front threshold beam and a floor longitudinal beam of an aluminum alloy frame of the car; each energy-absorbing tower piece 4 is connected with one side, far away from the cross beam 2, of the front longitudinal beam 1 and is used for being connected with the connecting beam 3, and the energy-absorbing tower pieces 4 are located on one side, close to the car lamps, of the connecting beam 3.
The utility model discloses an aluminum alloy frame anterior segment structure for car is used for absorbing along the energy of front longitudinal 1 transmission and then reduce the energy that this linking roof beam 3 absorbs through set up on front longitudinal 1 with linking up energy-absorbing formula tower spare 4 that roof beam 3 is connected, because this energy-absorbing formula tower spare 4 is located links up roof beam 3 and is close to one side of car light, when the vehicle bumps, energy-absorbing formula tower spare 4 is preferred to be absorbed the energy and is crumpled and warp, can reduce from this and link up the impact that roof beam 3 will bear at this in-process, and then reduce and link up the preceding bounding wall that roof beam 3 is correlated with, the not hard up or deformation that parts such as the floor longitudinal of front doorsill roof beam and aluminum alloy frame lead to because of the impact is too strong, guarantee personnel and key equipment's safety. Especially with linking the bounding wall that roof beam 3 is correlated with, avoid the bounding wall not hard up to rush into the driver's cabin under the effect of inertial impact force, and threaten personnel's safety in the car.
The linking beam 3 of this embodiment includes the framework and will the inner chamber of framework is divided into a plurality of cross connection's of a plurality of compartments baffle, the framework is used for connecting the crossbeam 2 of car, preceding dash board, front threshold roof beam and the floor longeron of aluminum alloy frame. The utility model discloses a divide the inner chamber that links up roof beam 3 into a plurality of compartments with the baffle to strengthen the torsional rigidity of this tie-beam, and then reduce this ulcerate deformation that contracts that links up roof beam 3, thereby guaranteed the stability rather than other parts of relevance. It should be noted that the aluminum alloy part is manufactured by extrusion or high-pressure casting, and the like, so that the overall rigidity of the aluminum alloy part can be improved, and the rigidity of the aluminum alloy casting can even exceed that of a steel stamping structure under the same quality condition when the design is reasonable.
In the aluminum alloy frame front section structure of the present embodiment, the two front side members 1 have, at the rear portions in the front-rear direction, side member bent portions bent outward in the vehicle width direction, the cross member 2 is connected to the inner sides of the two front side members 1 bent portions, and the connecting member 3 is connected to the outer sides of the front side members 1 bent portions.
The front section structure of the aluminum alloy frame of the embodiment is characterized in that the connecting beam 3 is connected with the cross beam 2 at the bent part of the longitudinal beam, so that on one hand, the connecting area of the connecting beam 3 and the front longitudinal beam 1 is increased, and the installation stability of the connecting beam 3 is further ensured through the connection of the cross beam 2 and the connecting beam 3; in the collision process, the connecting beam 3 is not easy to loosen, so that the installation stability of other parts related to the connecting beam is ensured. On the other hand, the impact force transmitted to the position along the front longitudinal beam 1 is dispersed to the cross beam 2 and the connecting beam 3, so that the energy absorbed by the connecting beam 3 is further weakened, and the probability of the collapsing deformation of the connecting beam 3 is reduced.
The front section structure of the aluminum alloy frame of the embodiment further comprises a first connecting member 5 connected with the front longitudinal beam 1 and the cross beam 2, and the first connecting member is used for connecting the energy-absorbing tower part 4 and the connecting beam 3. The first connecting member 5 comprises a first mounting part 501 connected with the front longitudinal beam 1, a second mounting part 502 connected with the cross beam 2 and the first mounting part 501, a third mounting part 503 connected with the energy-absorbing tower 4 and the first mounting part 501, and a fourth mounting part 504 connected with the connecting beam 3, the first mounting part 501 and the second mounting part 502; a rib 505 is disposed between the first mounting portion 501 and the second mounting portion 502.
The present embodiment improves the stability of the connection of the front side member 1 and the cross member 2 by providing the first connecting member 5 at the connection end of the front side member 1 and the cross member 2 and providing the reinforcing rib 505 between the first mounting portion 501 and the second mounting portion 502. According to the most stable characteristic of the triangle, the reinforcing ribs 505 are arranged in a triangular structure, so that the connection strength between the first mounting part 501 and the second mounting part 502 is further increased. The first connecting member 5 is also used for connecting the energy-absorbing tower part 4 and the connecting beam 3, so that the connection tightness of the energy-absorbing tower part 4 and the connecting beam 3 on the front longitudinal beam 1 is further improved; the first connecting member 5 of this embodiment is an aluminum alloy die-cast member, has joint strength height, the difficult cracked characteristic, reduces spare part quantity, has improved integration degree and assembly precision.
The front section structure of the aluminum alloy frame of the embodiment further comprises a second connecting member 6 connected with one side, far away from the cross beam 2, of the tail end of the front longitudinal beam 1, wherein the second connecting member 6 is used for connecting the energy-absorbing tower 4 and the connecting beam 3.
In the embodiment, the second connecting member 6 arranged on the outer side of the tail end of the front longitudinal beam 1 is connected with the energy-absorbing tower 4 and the connecting beam 3, so that the impact resistance of side impact is effectively improved, and dust and particles from the outside can be blocked. The second connecting member 6 of the present embodiment may be a sheet metal member, and has certain rigidity and supporting strength.
The front section structure of the aluminum alloy frame of the embodiment further comprises a reinforcing cross beam 7 used for connecting the two energy-absorbing tower pieces 4, two ends of the reinforcing cross beam 7 are connected with a step area of the energy-absorbing tower pieces 4 close to the top of the tower, the reinforcing cross beam 7 is an L-shaped bending plate, and a notch is formed in the L-shaped bending plate. The reinforcing beam 7 is connected with the two energy-absorbing tower parts 4 connected with the two front longitudinal beams 1, plays a role in transversely reinforcing the energy-absorbing tower parts 4, and can improve the transverse impact resistance effect of the energy-absorbing tower parts 4, so that the safety and the stability of the whole vehicle are facilitated. This stiffening beam 7 is the L shape structure of buckling, has realized the lightweight on the basis of guaranteeing stiffening beam 7's joint strength, through set up the breach on stiffening beam 7, when the impact force transmission to stiffening beam 7 on energy-absorbing formula tower 4, can follow this breach direction release stress.
The aluminum alloy frame forepart structure of this embodiment is still including connecting two cast aluminum bracket 8 between the front end of front longitudinal 1, bracket 8 is used for placing electrical equipment, and the cast aluminum bracket 8 of this embodiment can realize that controller, generator and battery are concentrated and install, and in the vehicle process of colliding, cast aluminum bracket 8 can absorb the impact force that comes from front longitudinal 1 in order to protect the security of installing the electrical equipment on bracket 8.
Therefore, the utility model discloses aluminum alloy frame front end structure passes through bolt, structural adhesive bonding and/or mode such as riveting with each spare part and connects for do not need the welding between individual spare part, practice thrift the cost, simplified the structure of spare part, spare part quantity is less, integrates the degree height, adopts aluminum alloy type material preparation individual spare part, has realized the lightweight.
The embodiment also comprises a car comprising the front end structure of the aluminum alloy frame.
It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
In the description of the present application, it is to be understood that the terms "longitudinal," "lateral," "length," "width," "upper," "lower," "front," "rear," "left," "right," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present invention is not limited to the particular embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.
Claims (10)
1. The utility model provides an aluminum alloy frame anterior segment structure for car which characterized in that includes:
two symmetrically arranged front longitudinal beams;
the cross beam is connected with the two front longitudinal beams;
the two connecting beams are connected with the front longitudinal beam and are used for connecting a cross beam, a front wall plate, a front threshold beam and a floor longitudinal beam of an aluminum alloy frame of the car;
each energy-absorbing tower piece is connected with one side, far away from the cross beam, of the front longitudinal beam and is used for being connected with the connecting beam, and the energy-absorbing tower pieces are located on one side, close to the car lamps, of the connecting beam.
2. The aluminum alloy frame front section structure according to claim 1, wherein the front side member is a hollow tube structure, and the cross section of the front side member is a Chinese character 'ri' shape or a Chinese character 'tian' shape;
the front side members have side member bent portions bent outward in the vehicle width direction at rear portions in the front-rear direction, the cross member is connected to inner sides of the two side member bent portions, and the connecting member is connected to outer sides of the side member bent portions.
3. The aluminum alloy frame forepart structure of claim 2, further comprising a first connecting member connected to the side and cross members, the first connecting member for connecting the energy absorbing tower member and the attachment beam;
the first connecting component comprises a first mounting part connected with the longitudinal beam, a second mounting part connected with the transverse beam and the first mounting part, a third mounting part connected with the energy-absorbing tower piece and the first mounting part, and a fourth mounting part connected with the connecting beam, the first mounting part and the second mounting part; and a reinforcing rib is arranged between the first installation part and the second installation part.
4. The aluminum alloy frame front section structure of claim 3, wherein the energy-absorbing tower member and the connecting beam are vacuum die-cast members made of aluminum alloy, the front longitudinal beam and the cross beam are extruded members made of aluminum alloy, and the first connecting member is an aluminum alloy die-cast member.
5. The aluminum alloy frame forepart structure of claim 1, further comprising a second connecting member connected to a side of the front side member distal from the cross member, the second connecting member for connecting the energy absorbing tower and the adapter beam.
6. The aluminum alloy frame forepart structure of claim 1, wherein the joining beam comprises a frame body and a plurality of staggered bulkheads dividing an inner cavity of the frame body into a plurality of compartments, the frame body being used to connect a cross member, a dash panel, a front sill beam and a floor rail of the aluminum alloy frame of the passenger car.
7. The aluminum alloy frame front section structure of claim 1, further comprising a reinforcing beam for connecting two energy-absorbing tower members, wherein two ends of the reinforcing beam are connected with a step area of the energy-absorbing tower members near the top of the tower, the reinforcing beam is an L-shaped bent plate, and a notch is formed in the L-shaped bent plate.
8. The aluminum alloy frame forward section structure of claim 1, further comprising a cast aluminum bracket connected between the front ends of the two front side members, the bracket being for placement of electrical equipment.
9. The aluminum alloy frame forward section structure of claim 3, wherein the reinforcing ribs are triangular in shape.
10. A passenger car comprising the aluminum alloy frame front section structure according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920506955.2U CN210126556U (en) | 2019-04-15 | 2019-04-15 | Aluminum alloy frame front section structure for car and car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920506955.2U CN210126556U (en) | 2019-04-15 | 2019-04-15 | Aluminum alloy frame front section structure for car and car |
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| Publication Number | Publication Date |
|---|---|
| CN210126556U true CN210126556U (en) | 2020-03-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920506955.2U Active CN210126556U (en) | 2019-04-15 | 2019-04-15 | Aluminum alloy frame front section structure for car and car |
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| Country | Link |
|---|---|
| CN (1) | CN210126556U (en) |
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2019
- 2019-04-15 CN CN201920506955.2U patent/CN210126556U/en active Active
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