CN110871761B - Vehicle front bumper skeleton texture and vehicle - Google Patents
Vehicle front bumper skeleton texture and vehicle Download PDFInfo
- Publication number
- CN110871761B CN110871761B CN201811008336.7A CN201811008336A CN110871761B CN 110871761 B CN110871761 B CN 110871761B CN 201811008336 A CN201811008336 A CN 201811008336A CN 110871761 B CN110871761 B CN 110871761B
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- vehicle
- connecting plate
- front bumper
- bumper skeleton
- thickness
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- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000006378 damage Effects 0.000 description 10
- 208000027418 Wounds and injury Diseases 0.000 description 7
- 208000014674 injury Diseases 0.000 description 7
- 239000004743 Polypropylene Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 206010019196 Head injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
- Superstructure Of Vehicle (AREA)
Abstract
The invention relates to the technical field of vehicle parts, in particular to a front bumper framework structure of a vehicle and the vehicle. The vehicle front bumper skeleton structure is arranged below an engine hood and is connected with a hood lock, and the vehicle front bumper skeleton structure comprises a front bumper skeleton body, wherein the front bumper skeleton body is provided with a first part and a second part which is arranged below the first part and is connected with the first part, the first part comprises a first connecting plate, a second connecting plate and a third connecting plate which are sequentially connected from top to bottom to form a ladder structure in the advancing direction of a vehicle, the third connecting plate is perpendicular to the second part, and the thickness of the second connecting plate is simultaneously smaller than the thickness of the first connecting plate and the third connecting plate. The vehicle front bumper framework provided by the invention has the advantages that the structure is simple, the cost is low, the manufacturing is convenient, and the first part of the vehicle front bumper framework is provided with the ladder structure, so that the vehicle front bumper framework can flexibly deform to absorb collision energy while maintaining good rigidity performance.
Description
Technical Field
The invention relates to the technical field of vehicle parts, in particular to a vehicle front bumper framework structure, which has good rigidity performance and can flexibly deform to absorb collision energy when the front part of a vehicle collides.
Background
The front bumper skeleton of a vehicle is an important component of the vehicle and plays an important role in the performance of the vehicle. Since the vehicle front bumper skeleton is provided at the front of the vehicle, it may affect the degree of injury of the vehicle to the impacted pedestrian when the front of the vehicle collides, particularly when the front of the vehicle collides with the pedestrian.
In general, a part of a front bumper skeleton of a vehicle is provided as a structure having a non-uniform thickness, which makes it possible to provide a good rigidity performance to the vehicle, but such a structure is designed so that it can absorb only a part of collision energy. In the case where the area where the front portion of the vehicle collides is located above the front bumper skeleton of the vehicle, when the front portion of the vehicle collides, particularly when the front portion of the vehicle collides with a pedestrian, collision energy may be generated and injury to the collided pedestrian may be caused, in which case it is necessary to absorb the collision energy by the flexible deformation of the front bumper skeleton of the vehicle to reduce the injury. However, since the conventional front bumper skeleton can absorb only a part of collision energy, it may cause injury to the impacted pedestrian.
Disclosure of Invention
First, the technical problem to be solved
The first object of the invention is: the vehicle front bumper framework structure is simple in structure, convenient to manufacture and capable of keeping good rigidity performance, and can absorb collision energy when the front part of a vehicle collides, so that the technical problem that the vehicle front bumper framework structure in the prior art cannot keep rigidity performance and can absorb collision energy when the front part of the vehicle collides is solved.
The second object of the invention is: the vehicle comprises the front bumper framework structure which is simple in structure, convenient to manufacture and capable of keeping good rigidity performance and absorbing collision energy when the front part of the vehicle collides, and the technical problem that the vehicle in the prior art cannot meet the requirements of keeping rigidity performance and absorbing collision energy when the vehicle collides is solved.
(II) technical scheme
In order to solve the above technical problems, the present invention provides a front bumper skeleton structure of a vehicle, which is provided below an engine hood and is connected with a bonnet lock, comprising a front bumper skeleton body having a first portion and a second portion located below and connected with the first portion, the first portion comprising a first connecting plate, a second connecting plate, and a third connecting plate that are sequentially connected from top to bottom to form a stepped structure in a forward direction of the vehicle, wherein the third connecting plate is perpendicular to the second portion and a thickness of the second connecting plate is simultaneously smaller than a thickness of the first connecting plate and the third connecting plate.
Wherein the first connection plate and the third connection plate have the same thickness as each other.
Wherein, the thickness of first connecting plate and third connecting plate is 3mm and the thickness of second connecting plate is 1mm.
Wherein the first connecting plate is provided to be inclined at a predetermined angle with respect to the third connecting plate toward the reverse direction of the vehicle.
Wherein the first connecting plate, the second connecting plate and the third connecting plate of the first part simultaneously protrude toward the reversing direction of the vehicle.
Wherein, the first portion of front bumper skeleton body is provided with the connecting hole in order to be connected with the automobile body is fixed.
Wherein, the first portion of front bumper skeleton body is provided with the strengthening rib.
Wherein the first portion and the second portion are integrally formed.
Wherein, first connecting plate, second connecting plate and third connecting plate integrated into one piece.
The invention also provides a vehicle comprising a vehicle front bumper skeleton structure according to the invention.
(III) beneficial effects
The invention provides a front bumper framework structure of a vehicle, which is arranged below an engine hood and connected with a hood lock, and comprises a front bumper framework body, wherein the front bumper framework body is provided with a first part and a second part which is positioned below the first part and connected with the first part, the first part comprises a first connecting plate, a second connecting plate and a third connecting plate which are sequentially connected from top to bottom to form a ladder structure in the advancing direction of the vehicle, and the third connecting plate is perpendicular to the second part and the thickness of the second connecting plate is simultaneously smaller than the thickness of the first connecting plate and the third connecting plate. The front bumper framework of the vehicle is simple in structure, low in cost, convenient to manufacture and stable and reliable in performance, the first part of the front bumper framework of the vehicle is provided with the step structure, so that the front bumper framework can flexibly deform to absorb collision energy when the front part of the vehicle collides while maintaining good rigidity performance of the front bumper framework, and particularly, the damage to the collided pedestrian can be effectively reduced when the front part of the vehicle collides with the pedestrian, the pedestrian protection performance of the vehicle is improved, and the rules in the pedestrian collision regulation are met, namely the HIC value is not more than 1700.
Drawings
The above and other objects, features and other advantages of the present disclosure will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic view of a connection structure of an internal component located in a front portion of a vehicle according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a front bumper skeleton structure of a vehicle according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a first portion of a vehicle front bumper skeleton structure according to an embodiment of the invention;
FIG. 4 is a rear view of a first portion of the front bumper skeleton structure of the vehicle of FIG. 3;
FIG. 5 is a side view of a first portion of the front bumper skeleton structure of FIG. 3;
Fig. 6 is a view showing a flexible deformation of a vehicle front bumper skeleton structure according to an embodiment of the present invention.
In the figure: 1: a front bumper skeleton; 1-1: a first section; 1-2: a second section; 2: an engine hood; 3: a cover lock; 10: a first connection plate; 20: a second connecting plate; 30: a third connection plate; 50. 60: a connection hole; 55: reinforcing ribs.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In one aspect, as shown in fig. 1 to 5, the present invention provides a vehicle front bumper skeleton structure provided below an engine hood and connected to a bonnet lock, comprising a front bumper skeleton body having a first portion and a second portion located below and connected to the first portion, the first portion comprising a first connecting plate, a second connecting plate, and a third connecting plate connected in order from top to bottom to form a stepped structure in a forward direction of the vehicle, wherein the third connecting plate is perpendicular to the second portion and a thickness of the second connecting plate is smaller than a thickness of both the first connecting plate and the third connecting plate.
In the present embodiment, the front bumper skeleton 1 is provided below the hood 2 and includes a first portion 1-1 and a second portion 1-2 that are connected to each other. In the height direction of the vehicle (hereinafter referred to as X direction), the first portion 1-1 is located above the second portion 1-2, and the first portion 1-1 is generally disposed above the middle portion of the second portion 1-2. The second portion 1-2 may be provided with attachment holes 50, 60 for fixedly attaching to the vehicle interior component. Wherein the front bumper skeleton 1 may be formed of plastic, preferably polypropylene-based plastic, preferably PP TD 20.
The first portion 1-1 includes a first connection plate 10, a second connection plate 20, and a third connection plate 30, which are connected to each other in the order from top to bottom in the X direction. That is, the first connection plate 10 is connected to one end of the second connection plate 20, and the other end of the second connection plate 20 is connected to one end of the third connection plate 30, and the other end of the third connection plate 30 is connected to the second portion 1-2, in the order from top to bottom. Meanwhile, the first, second, and third connection plates 10, 20, and 30 are connected in such a manner as to be formed in a stepped structure, and wherein the stepped structure is formed in a reverse direction of the vehicle (hereinafter referred to as Y direction). Specifically, the third connecting plate 30 is disposed perpendicular to the second portion 1-2, the second connecting plate 20 is disposed to be connected to the third connecting plate 30 at an angle and extend in the Y direction, and the first connecting plate 10 is disposed to be connected to the second connecting plate 20 at an angle and extend in the X direction. Further, in the stepped structure formed by the first connection plate 10, the second connection plate 20, and the third connection plate 30, the thickness of the second connection plate 20 is set to be smaller than the thicknesses of the first connection plate 10 and the third connection plate 30 at the same time, because the second connection plate 20 having the smallest thickness may have weaker rigidity, and thus the second connection plate 20 may become a deformation site for the first portion 1-1 to be flexibly deformed, that is, the first portion 1-1 may be flexibly deformed at the second connection plate 20, when the front portion of the vehicle collides.
According to the embodiment of the present invention, the lengths and heights of the first connecting plate 10, the second connecting plate 20, and the third connecting plate 30 in the first portion 1-1 may be arbitrarily set as long as the first portion 1-1 can be appropriately fixedly connected with other components inside the vehicle, and can be flexibly deformed as desired to absorb collision energy when the front portion of the vehicle collides. Preferably, the first connection plate 10 is provided to have a maximum height, the third connection plate 30 is provided to have a second high height and the second connection plate 20 is provided to have a minimum height.
By connecting the first connection plate 10, the second connection plate 20, and the third connection plate 30 in this way, the first portion 1-1 is formed to have a stepped structure. When a front portion of the vehicle collides, a pressure may be generated due to the collision to be applied to the front portion of the vehicle and thus to the first portion 1-1 of the front bumper skeleton 1. Since the first portion 1-1 has a stepped shape structure and the thickness of the second connection plate 20 is the minimum thickness in the first portion 1-1, when receiving pressure, the second connection plate 20 can become a deformed portion of the first portion 1-1, so that the first connection plate 10 is flexibly deformed in the reverse direction of the vehicle, i.e., changed from an original position where no collision occurs to a deformed position as shown in fig. 6, thereby absorbing collision energy to protect vehicle interior components and reduce injury to a collided pedestrian, thereby improving pedestrian protection performance of the vehicle.
Further, as shown in fig. 1 to 6, the first connection plate and the third connection plate have the same thickness as each other.
According to the embodiment of the present invention, the first connection plate 10 and the third connection plate 30 are provided to have the same thickness as each other, and the second connection plate 20 has a thickness smaller than both the first connection plate 10 and the third connection plate 30. The first and third connection plates 10 and 30 may be provided with a suitable thickness to satisfy the fixed connection with the vehicle interior components and to maintain good rigidity performance of the front bumper frame 1. When the thicknesses of the first connecting plate 10 and the third connecting plate 30 are set to be the same as each other, it is easier to achieve maintaining good rigidity performance of the first portion 1-1, thereby providing good stability of the vehicle. Meanwhile, the thickness of the second connection plate 20 is set to be smaller than the thicknesses of the first connection plate 10 and the third connection plate 30 so that the first portion 1-1 can be changed to the deformed position when the front portion of the vehicle collides, and thus the front bumper skeleton 1 of the present invention can provide flexible deformation to absorb collision energy while maintaining its good rigidity property.
Preferably, as shown in fig. 5-6, the thickness of the first and third webs is 3mm and the thickness of the second web is 1mm.
According to an embodiment of the present invention, the present invention conducted a comparative test in the course of investigating the structure of the first part 1-1. As a comparative example, a conventional front bumper skeleton was tested, that is, a first portion in the front bumper skeleton having a non-uniform thickness structure with a thickness varying from 3mm to 2.5mm was tested, and according to the test result, the HIC (head injury index, which is required to be less than 1700 in the collision regulation) value was 1929 (more than 1700), and thus the regulation in the pedestrian collision regulation could not be satisfied. However, with respect to the first part 1-1 having the stepped structure in the present invention, when the first connection plate 10 and the third connection plate 30 in the first part 1-1 are set to have a thickness of 3mm and the second connection plate 20 is set to have a thickness of 1mm, the first part 1-1 in the present invention is tested, and according to the test result, its HIC value is 1559.1 (less than 1700), and thus the provision in the pedestrian collision regulation can be satisfied. Therefore, according to the embodiment of the present invention, it is preferable to set the thicknesses of the first and third connection plates to 3mm and the thickness of the second connection plate to 1mm, so that the front bumper skeleton 1 according to the present invention can also be flexibly deformed to absorb collision energy when a front portion of the vehicle collides while maintaining good rigidity performance thereof. In addition, the first part 1-1 of the present invention was further subjected to a rigidity performance test, and when the front part of the vehicle was crashed, the offset amount of the first part 1-1 was 4.9mm, which was smaller than the maximum offset amount of 8mm, so that the first part 1-1 of the present invention had a good rigidity performance.
Preferably, as shown in fig. 1 to 6, the first connecting plate is provided to be inclined at a predetermined angle with respect to the third connecting plate in the reverse direction of the vehicle.
When a vehicle front collision occurs, pressure is generated to be applied to the vehicle front and thus to the first portion 1-1 in the front bumper skeleton 1. Since the first portion 1-1 has a stepped structure, when a pressure is applied, the second connection plate 20 having the smallest thickness becomes a flexible deformation position due to its smaller rigidity, i.e., the first connection plate 10 located above the second connection plate 20 will be changed from an initial position where no collision occurs in the Y direction to a deformation position by the second connection plate 20, which allows the first portion 1-1 to flexibly deform in the Y direction to absorb collision energy, thereby reducing injuries to a collided pedestrian to improve pedestrian protection performance of the vehicle. Further, according to the embodiment of the present invention, the first connection plate 10 is provided to be inclined at a predetermined angle, for example, 10 °,20 °, 30 °, or the like, in the Y direction with respect to the third connection plate 30. That is, the first connecting plate 10 is provided to be inclined at a predetermined angle in the direction of the flexible deformation, which makes the first portion 1-1 more susceptible to the flexible deformation in the Y direction to absorb the collision energy when the vehicle front portion collides, and particularly, enables better protection of the collided pedestrian when the vehicle front portion collides with the pedestrian. Here, it should be noted that the predetermined angle at which the first connecting plate 10 is inclined may be arbitrarily set, as long as when the vehicle front portion collides, the first connecting plate 10 may undergo a desired positional change to absorb collision energy.
Further, as shown in fig. 1 to 6, the first connecting plate, the second connecting plate, and the third connecting plate of the first portion simultaneously protrude in the reverse direction of the vehicle.
According to the embodiment of the invention, in the forward direction of the vehicle, both sides of the first portion 1-1 in the vehicle width direction are bent forward so that the first portion 1-1 can be formed to have a trapezoid-like shape, a semicircle-like shape, or the like when viewed in the X direction. According to the component environment in the vehicle, the trapezoid-like shape or the semicircle-like shape can be better matched and connected with surrounding components, and the rigidity performance of the front bumper framework 1 can be better maintained, so that the stability of the vehicle is more effectively improved, the service life of the vehicle body is prolonged, and the vehicle can feel comfortable and reliable to passengers.
Further, as shown in fig. 1 to 6, the first portion of the front bumper skeleton body is provided with a connecting hole to be fixedly connected with the vehicle body; the first portion of the front bumper skeleton body is provided with a reinforcing rib.
According to an embodiment of the present invention, the connection holes 50 symmetrical to each other are provided in the two portions of the first portion 1-1 bent forward, respectively, and the connection holes 60 are provided in the middle portion of the first portion 1-1. The first portion 1-1 can be fixedly coupled with the vehicle interior component through the coupling holes 50 and 60. Further, as shown in fig. 3, a reinforcing rib 55 is provided around each of the connection holes 50. Since the connection holes 50 are weak at the positions where the connection holes 50 are located, damage is liable to occur when the vehicle collides, the reinforcing ribs 55 are provided for each connection hole 50, respectively, so that the connection holes 50 can be well protected.
Further, as shown in fig. 1 to 6, the first portion and the second portion are integrally formed; the first connecting plate, the second connecting plate and the third connecting plate are integrally formed.
According to the embodiment of the present invention, the first and second portions 1-1 and 1-2 of the front bumper skeleton 1 are integrally formed to form the front bumper skeleton 1, and the first, second and third connection plates 10, 20 and 30 are integrally formed to form the first portion 1-1, which makes it easier to manufacture automobile parts, reduces the number of assembled parts, and improves the part precision.
In another aspect, the present invention also provides a vehicle including the front bumper skeleton structure of the vehicle according to the embodiment of the present invention.
In the present embodiment, as shown in fig. 1 to 6, the vehicle includes an engine hood 2 and a hood lock 3, and a front bumper skeleton 1 provided below the engine hood 2. The front bumper skeleton 1 includes a first portion 1-1 having a stepped structure and a second portion 1-2 provided below the first portion 1-1. The first portion 1-1 includes a first connection plate 10, a second connection plate 20, and a third connection plate 30 for forming a stepped structure, wherein the thickness of the second connection plate 20 is smaller than the thickness of the first connection plate 10 and the third connection plate 30 at the same time. According to the embodiment of the present invention, the first portion 1-1 can have good rigidity performance to provide good stability of the vehicle, while the first portion 1-1 can be flexibly deformed by its stepped structure to absorb collision energy when the front of the vehicle collides, and injury to the collided pedestrian can be reduced to provide good pedestrian protection performance when the front of the vehicle collides with the pedestrian.
In summary, the present invention provides a front bumper skeleton structure for a vehicle, which is disposed below an engine hood and connected to a hood lock, and includes a front bumper skeleton body having a first portion and a second portion disposed below and connected to the first portion, the first portion including a first connecting plate, a second connecting plate, and a third connecting plate sequentially connected from top to bottom to form a stepped structure in a reverse direction of the vehicle, wherein the third connecting plate is perpendicular to the second portion and a thickness of the second connecting plate is simultaneously smaller than a thickness of the first connecting plate and the third connecting plate. The front bumper framework of the vehicle is simple in structure, low in cost, convenient to manufacture and stable and reliable in performance, the first part of the front bumper framework of the vehicle is provided with the step structure, so that the front bumper framework can be flexibly deformed to absorb collision energy when the front part of the vehicle collides, particularly when the front part of the vehicle collides with a pedestrian, the damage to the collided pedestrian can be effectively reduced, the pedestrian protection performance of the vehicle is improved, the safety is high, the performance is stable, the comfort is good, the service life of the vehicle body is prolonged, and the vehicle is comfortable and reliable to drive.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced equivalently; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a vehicle front bumper skeleton texture sets up in the below of engine bonnet and is connected with the bonnet lock, its characterized in that: comprising a front bumper skeleton body having a first portion and a second portion located below and connected to the first portion, the first portion comprising a first connecting plate, a second connecting plate, and a third connecting plate connected sequentially from top to bottom to form a stepped structure in a forward direction of a vehicle, wherein the third connecting plate is perpendicular to the second portion and a thickness of the second connecting plate is simultaneously smaller than a thickness of the first connecting plate and the third connecting plate,
When a front portion of a vehicle collides, the first connecting plate located above the second connecting plate will be changed from an original position, in which no collision occurs, to a deformed position in a reverse direction of the vehicle by the second connecting plate.
2. The vehicle front bumper skeleton structure according to claim 1, characterized in that: the first connection plate and the third connection plate have the same thickness as each other.
3. The vehicle front bumper skeleton structure according to claim 2, characterized in that: the thickness of the first connecting plate and the third connecting plate is 3mm, and the thickness of the second connecting plate is 1mm.
4. The vehicle front bumper skeleton structure according to claim 1, characterized in that: the first connecting plate is provided to be inclined at a predetermined angle with respect to the third connecting plate in a reverse direction of the vehicle.
5. The vehicle front bumper skeleton structure according to claim 1, characterized in that: the first, second and third connection plates of the first portion protrude simultaneously in a reverse direction of the vehicle.
6. The vehicle front bumper skeleton structure according to claim 1, characterized in that: the first portion of the front bumper skeleton body is provided with a connecting hole to be fixedly connected with a vehicle body.
7. The vehicle front bumper skeleton structure according to claim 1, characterized in that: the first portion of the front bumper skeleton body is provided with a reinforcing rib.
8. The vehicle front bumper skeleton structure according to claim 1, characterized in that: the first portion and the second portion are integrally formed.
9. The vehicle front bumper skeleton structure according to claim 1, characterized in that: the first connecting plate, the second connecting plate and the third connecting plate are integrally formed.
10. A vehicle, characterized in that: a vehicle front bumper skeleton structure comprising any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811008336.7A CN110871761B (en) | 2018-08-31 | 2018-08-31 | Vehicle front bumper skeleton texture and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811008336.7A CN110871761B (en) | 2018-08-31 | 2018-08-31 | Vehicle front bumper skeleton texture and vehicle |
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| CN110871761A CN110871761A (en) | 2020-03-10 |
| CN110871761B true CN110871761B (en) | 2024-05-14 |
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| CN201811008336.7A Active CN110871761B (en) | 2018-08-31 | 2018-08-31 | Vehicle front bumper skeleton texture and vehicle |
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