CN115320723B - Automobile front structure capable of being used for pedestrian protection and automobile - Google Patents
Automobile front structure capable of being used for pedestrian protection and automobile Download PDFInfo
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- CN115320723B CN115320723B CN202211042125.1A CN202211042125A CN115320723B CN 115320723 B CN115320723 B CN 115320723B CN 202211042125 A CN202211042125 A CN 202211042125A CN 115320723 B CN115320723 B CN 115320723B
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- front cover
- wheel arch
- fender
- front wheel
- automobile
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
- B62D25/10—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/02—Side panels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/04—Door pillars ; windshield pillars
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
- B62D25/16—Mud-guards or wings; Wheel cover panels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
- B62D25/16—Mud-guards or wings; Wheel cover panels
- B62D25/163—Mounting devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
- B62D29/008—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of light alloys, e.g. extruded
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The application relates to the technical field of automobile bodies, in particular to an automobile front structure and an automobile which can be used for pedestrian protection, comprising a front cover, side walls, a fender, a front wheel arch decoration piece, a fender mounting plate and a front bumper, wherein the side walls are positioned above the fender, the front cover is positioned in front of the fender, the front bumper is positioned below the front cover, and the fender mounting plate is positioned below the front cover; the front cover is hinged on the side wall, and the front bumper is fixedly connected with the fender mounting plate; a fender mounting bracket is fixedly connected between the fender and the fender mounting plate; the front wheel arch decorating part comprises a front section, a middle section and a rear section, the front section and the rear section of the front wheel arch decorating part are respectively fixedly connected with a front bumper and a fender, and a front wheel arch decorating part mounting bracket is fixedly connected between the middle section of the front wheel arch decorating part and a fender mounting plate; the front cover, the front wheel arch decoration and the fender mounting plate form a cavity. The application can reduce the damage value HIC to the human head when the pedestrian collides, and improve the safety performance of the vehicle.
Description
Technical Field
The application relates to the technical field of automobile bodies, in particular to an automobile front structure and an automobile, which can be used for pedestrian protection.
Background
With the development of modern automobiles, people have higher and higher requirements on the appearance and quality of the automobiles; in order to reduce the casualty rate of collision accidents of vehicles to pedestrians based on road traffic safety while meeting the requirements of users, the collision protection regulations of vehicles in China to pedestrians are gradually perfected and improved, the pedestrian protection is also included in the investigation project in the evaluation content of C-NCAP, the collision area of the pedestrians mainly occurs at the front part of the vehicles, and the pedestrian protection performance of the front part of the vehicles is related to the front part structure design of the vehicles.
In the existing front structure of an automobile, a front cover of the front part of the automobile is separated from a fender, and the fender is inevitably positioned in a pedestrian protection area, for example, patent with an authorized bulletin number of CN209739171U discloses a fender mounting structure for pedestrian protection, which comprises the fender, a white body assembly and a fender mounting bracket; the fender mounting bracket is an L-shaped bracket, and the upper end of the L-shaped bracket is fixed with the straight flanging of the fender mounting bracket by spot welding; the white body assembly is provided with an opening and is welded with a square nut in a projection manner, the lower end of the L-shaped bracket is provided with a nut hole, and the L-shaped bracket is fastened with the white body assembly through a gasket combination bolt penetrating through the nut hole and the square nut. According to the fender mounting structure for pedestrian protection, the distance from the mounting hard point to the outer surface is increased, the flanging structure and the mounting bracket structure of the fender are weakened, the energy absorption efficiency is improved in the collision process of pedestrian protection heads, the damage value HIC to the heads is reduced, and the pedestrian protection capacity is improved.
In another example, publication number CN114104109a discloses a magnesium alloy front end frame assembly and vehicle which are favorable for pedestrian protection, and the vehicle comprises a frame body and a leg protection beam, wherein the frame body is a magnesium alloy die casting which is formed integrally, the left end and the right end of the leg protection beam are connected with the front end of an energy absorption box, the left side and the right side of the frame body are respectively formed integrally with a first mounting plate, and the rear end of the energy absorption box is connected with the front side of the first mounting plate of the frame body. According to the technical scheme, through the arrangement of the energy-absorbing box and the notch, the pedestrian protection performance in the collision process can be effectively improved, and the light-weight requirement of the vehicle body is met.
The above-mentioned existing front structure of an automobile can achieve a certain pedestrian protection effect by a specific structural design, but the distance between the hard mounting points and the outer surface of the automobile body is usually limited and insufficient due to the automobile body structure, so that the head collision injury value HIC of the pedestrian is still relatively high, and the comprehensive evaluation score of C-NCAP is affected.
Disclosure of Invention
In view of the above, an object of the present application is to provide an automobile front structure and an automobile for pedestrian protection, which can reduce the damage value HIC to the human head in the event of a pedestrian collision by reducing the collision hard points in the front collision area of the automobile, and improve the safety performance of the automobile.
The application solves the technical problems by the following technical means:
an automobile front structure capable of being used for pedestrian protection comprises a front cover, a side wall, a fender, a front wheel arch decoration, a fender mounting plate and a front bumper, wherein the side wall is positioned above the fender; the front cover is hinged on the side wall, and the front bumper is fixedly connected with the fender mounting plate; a horizontally arranged fender mounting bracket is fixedly connected between the fender and the fender mounting plate; the front wheel arch decorating part comprises a front section, a middle section and a rear section, the front section and the rear section of the front wheel arch decorating part are respectively and fixedly connected with a front bumper and a fender, and a front wheel arch decorating part mounting bracket which is horizontally arranged is fixedly connected between the middle section of the front wheel arch decorating part and a fender mounting plate; and a cavity is formed among the front cover, the front wheel arch decorating part and the fender mounting plate.
The technical scheme has the principle and the effect that the front cover, the side wall, the fender, the front wheel arch decoration, the fender mounting plate and the front bumper are rearranged and mounted, the fender and the front wheel arch decoration are fixedly connected with the fender mounting plate by utilizing the horizontally and transversely arranged fender mounting bracket and the front wheel arch decoration mounting bracket, and a cavity is formed among the front cover, the front wheel arch decoration and the fender mounting plate. The mounting bracket structure in the vertical direction of the traditional automobile is greatly reduced in the collision area of the head of the pedestrian; the front lower car body is completely covered by the front cover outline, cavities are formed on the left side and the right side of the front part of the car, when the side part of a pedestrian is collided with the front cover, collision energy is absorbed by the front cover, no collision hard point exists below a collision area, so that collision injury to the head of the pedestrian caused by the upper area of a fender in the prior art is reduced, injury value HIC to the head of the human body is reduced, and the safety performance of the car is improved.
Further, the front cover and the fender are longitudinally segmented at the front end of the side wall and are cut off behind the central line of the front wheel arch decorating part, and a first segmentation line is formed in a matching mode; the front cover and the middle section of the front wheel arch decorating part are partitioned in the horizontal direction, and a second partition line is formed by matching. Such setting for this technical scheme's fender no longer extends forward, make the appearance profile blocking line that goes the front shroud set up in the anterior left and right sides front wheel upper portion wheel arch department, form a big front shroud of similar umbrella type, there is not the fender panel between front shroud and the front wheel arch decoration, front shroud and front wheel arch decoration direct mount match, not have horizontal fender panel, reduce pedestrian's head's collision injury, further reduced the injury value HIC to human head, improve the security performance of vehicle.
Further, the front cover comprises a front cover outer plate and a front cover inner plate, wherein the front cover outer plate is made of six-series aluminum alloy material, and the thickness is 0.8-1.0mm; the front cover inner plate is made of five-series aluminum alloy, the thickness of the front cover inner plate is 0.8-1.0mm, and the circumferential end part of the front cover outer plate and the circumferential end part of the front cover inner plate are fixedly connected by adopting a die buckling or rolling and edging process. According to the technical scheme, the front cover outer plate and the front cover inner plate are made of aluminum alloy materials, so that the structure is light to the greatest extent, the opening force of the front cover is reduced, and the operation comfort is improved; the circumferential end of the front cover outer plate is fixedly connected with the circumferential end of the front cover inner plate by adopting a die buckling or rolling taping process, so that the front cover outer plate and the front cover inner plate are tightly connected into a whole.
Further, the fender mounting plate is fixedly provided with a vertically arranged buffer block support bracket, a front cover buffer pad is arranged on the buffer block support bracket, and the distance from the end part of the buffer block support bracket, which is far away from the fender mounting plate, to the outer surface of the front cover outer plate is 70-80mm. In the front structure of the automobile, the buffer block support bracket is positioned in the vertical direction of pedestrian head collision, and is a collision hard point closest to the outer surface of the front cover outer plate, so that the design is adopted, the height of the front cover buffer pad is added, the distance between the upper part of the fender mounting plate and the front cover outer plate is 70mm-80mm, a larger buffer space is provided for head collision, the collision energy absorption is increased, and the head injury value is reduced.
Further, one end of the fender mounting bracket is connected with a fender bolt, and the other end of the fender mounting bracket is welded with the fender mounting plate through spot welding; one end of the front wheel arch decoration mounting bracket is connected with the middle section of the front wheel arch decoration by bolts, and the other end of the front wheel arch decoration mounting bracket is welded with the fender mounting plate by spot welding. By the aid of the connecting mode, the fender and the front wheel arch decorating piece can be conveniently detached, the assembly accuracy of the fender and the front wheel arch decorating piece in the height direction and the width direction of the automobile body is guaranteed, and the appearance and the quality of the automobile body are improved.
Further, the side wall comprises a side wall A post lower inner plate, and a front cover hinge is arranged between the front cover and the side wall A post lower inner plate; the front cover hinge comprises a front cover male hinge, a hinge shaft pin and a front cover female hinge, wherein the front cover male hinge is fixedly connected with a front cover inner plate, the front cover female hinge is fixedly connected with a side wall A column lower inner plate, and the front cover male hinge is rotatably connected with the front cover female hinge through the hinge shaft pin. In the overturning process of the front cover, the front cover rotates along with the front cover male hinge, and when the front cover male hinge and the front cover female hinge rotate through hinge shaft pins, the front cover female hinge is fixedly connected to the lower inner plate of the side wall A column, so that the front cover is connected with a vehicle body; and, the front shroud hinge that this technical scheme is connected with the front shroud is located the inboard of fender to and on the side wall A post inner panel down, make the front shroud hinge be located the outside of the human head collision test area in vehicle front portion, thereby avoided the injury of hinge axle sleeve position hard spot to human head collision, further improved vehicle collision security performance.
Further, the front cover male hinge is connected with the front cover inner plate through bolts, and the front cover female hinge is connected with the side wall A post lower inner plate through bolts. This scheme adopts bolted connection's mode to make through dismantling the bolt, make the front shroud assembly can be dismantled, and then reach the installation firm, dismantle convenient effect.
Further, front cover hinge reinforcements are fixedly connected to two sides of the rear end of the front cover inner plate, the front cover hinge reinforcements are connected with the front cover inner plate through a plurality of self-punching rivet assemblies, and front cover male hinge bolts are connected to the front cover hinge reinforcements; the front cover hinge reinforcement is made of galvanized steel plates. Because the thickness of the front cover inner plate is generally thinner, the stability of the front cover male hinge is poorer, and the front cover hinge reinforcing pieces are fixedly connected to the two sides of the rear end of the front cover inner plate, so that the front cover male hinge can be more stably installed; in addition, the front cover hinge reinforcement is made of galvanized steel plates, so that the problem of electrochemical corrosion caused by contact between a common steel plate and an aluminum alloy plate is solved, and meanwhile, the weight reduction, the connection rigidity at the front cover hinge and the durability of the vehicle are both considered.
Further, a first front cover lock pin reinforcement and a second front cover lock pin reinforcement are arranged in the middle of the front end between the front cover outer plate and the front cover inner plate, the first front cover lock pin reinforcement is fixedly connected with the front cover inner plate through a plurality of self-punching rivet assemblies, a plurality of connecting feet are fixedly connected to the second front cover lock pin reinforcement in the circumferential direction, and each connecting foot is fixedly installed on the front cover inner plate through the self-punching rivet assemblies; the second front cover lock pin reinforcement is arranged between the front cover outer plate and the first front cover lock pin reinforcement, a plurality of strip-shaped grooves are formed in one side, close to the front cover outer plate, of the second front cover lock pin reinforcement, strip-shaped glue is arranged in the grooves, and the second front cover lock pin reinforcement is bonded with the front cover outer plate through the strip-shaped glue. According to the technical scheme, the first front cover lock pin reinforcement and the second front cover lock pin reinforcement are arranged in the middle of the front end between the front cover outer plate and the front cover inner plate, and the front cover lock pin of the automobile is generally installed, so that the front cover lock pin is more stably installed, and the concave resistance and the torsion resistance of the front cover can be improved.
Further, the first front cover lock pin reinforcement and the second front cover lock pin reinforcement are made of galvanized steel plates. The front cover lock pin reinforcements of the technical scheme are all preferably galvanized steel plates, so that the problem of electrochemical corrosion of common steel plates and aluminum alloy plates in contact can be solved, and meanwhile, the light weight, the connection rigidity at the hinge of the front cover and the durability of the vehicle are both considered.
Further, a gap of 80-160mm is arranged between one side, close to the front cover outer plate, of the first front cover lock pin reinforcement and the front cover outer plate. According to the technical scheme, the gap is arranged between the first front cover lock pin reinforcement and the front cover outer plate, so that sufficient buffering and energy absorbing space can be provided for the collision of the front end head of the vehicle, the head injury to pedestrians is reduced, and the injury value is reduced.
Further, the front section of the front wheel arch decorating part is connected with a front bumper in a buckling manner, and the rear section of the front wheel arch decorating part is connected with a fender in a buckling manner; the middle section of front wheel arch decoration is provided with front wheel arch decoration reinforcement, one side and front wheel arch decoration fixed connection of front wheel arch decoration reinforcement, the opposite side and the front wheel arch decoration installing support fixed connection of front wheel arch decoration reinforcement, front wheel arch decoration installing support keeps away from the one end and the fender mounting panel fixed connection of front wheel arch decoration reinforcement. According to the technical scheme, the rear section of the front wheel arch decorating part assembly is connected with the fender assembly in a buckling manner, and the rear section of the front wheel arch decorating part is connected with the fender in a buckling manner, so that the front section and the rear section of the front wheel arch decorating part assembly can be stably installed, and the matching installation precision of the front section and the rear section of the front wheel arch decorating part can be ensured; in addition, the structural strength of the front wheel arch decorating part can be increased due to the arrangement of the front wheel arch decorating part reinforcing part, the front wheel arch decorating part reinforcing part is arranged on the inner side of the middle section of the front wheel arch decorating part, and the middle section of the front wheel arch decorating part is fixedly arranged on the fender mounting plate through the front wheel arch decorating part mounting bracket; thereby realizing the stable installation of the front wheel arch decoration and the vehicle body.
Further, one side of front wheel arch decoration reinforcement is connected with front wheel arch decoration buckle, the opposite side of front wheel arch decoration reinforcement is connected with front wheel arch decoration installing support buckle, front wheel arch decoration installing support keeps away from the one end of front wheel arch decoration reinforcement and passes through spot welding with the fender mounting panel. The connecting mode can connect the front wheel arch decoration reinforcing piece in a buckling connection mode, so that the mounting accuracy of the front wheel arch decoration and the width and height direction of the vehicle body is ensured, and the mounting accuracy of the front wheel arch decoration mounting bracket and the vehicle body is also ensured.
The application also discloses a vehicle which comprises the front part structure of the automobile and other parts of the automobile. The front end, the left side and the right side of the vehicle are respectively downwards extended, the left side and the right side are downwards extended to the front side and the rear side of the front wheel arch, the front cover inner plate is connected with the front cover outer plate to form a cavity structure, the front cover and the fender are longitudinally segmented at the front end of the side wall, a fender panel is not arranged between the front cover and the front wheel arch decoration, the lower automobile body at the front part of the vehicle is completely covered, a front cover hinge connected with the front cover is arranged on the lower inner plate of the side wall A post at the rear end of the side wall A post, the hinge shaft is completely avoided from the range of a pedestrian protection area, the collision hard point is eliminated, the collision energy absorption space is increased, the damage to the head of the pedestrian is reduced, and the safety performance of the vehicle is improved.
It should be noted that, in the present technical solution, the front, rear, left, right, upper, lower and other directions are defined and described by the front, rear, left, right, upper, lower relationships of the automobile after sitting on the driving position.
In addition, the automobile front part structure capable of protecting pedestrians can be suitable for the traditional fuel oil automobile front cover, is also suitable for the electric automobile front cover provided with the front luggage case, and can improve the endurance mileage of the electric automobile and meet the convenience and comfort of operation when the front luggage case is used for placing and taking objects when being arranged on the electric automobile.
The automobile front structure and the automobile for pedestrian protection have the following advantages:
1. according to the front structure of the automobile, the front cover, the side walls, the fender, the front wheel arch decoration, the fender mounting plate and the front bumper are rearranged and mounted, and the fender and the front wheel arch decoration are fixedly connected with the fender mounting plate by utilizing the horizontally and transversely arranged fender mounting bracket and the front wheel arch decoration mounting bracket, so that a cavity is formed among the front cover, the front wheel arch decoration and the fender mounting plate; the fender mounting bracket connected with the vertical direction of the vehicle body at the upper parts of the front wheels at the left side and the right side of the front part of the vehicle in the prior art is eliminated, namely, the hard point of head collision is eliminated, so that the collision injury of the front part of the vehicle to the head of a pedestrian is reduced, and the safety performance of the vehicle is improved.
2. The front cover of the automobile is respectively downwards extended at the front end, the left side and the right side of the automobile, the left side and the right side are downwards extended to the front side and the rear side of a front wheel arch, the inner plate of the front cover is connected with the outer plate of the front cover to form a cavity structure, the front cover and a fender are longitudinally segmented at the front end of a side wall, a fender panel is not arranged between the front cover and a front wheel arch decoration, the lower automobile body at the front part of the automobile is completely covered, a front cover hinge connected with the front cover is arranged on the lower inner plate of the side wall A post at the rear end of the side wall A post, the hinge shaft is completely out of the range of a pedestrian protection area, a collision hard point is eliminated, the collision energy absorption space is increased, the damage to the head of the pedestrian is reduced, and the safety performance of the automobile is improved.
3. The front cover is made of steel-aluminum mixed materials, so that the requirements of pedestrian protection and collision are met, the rigidity and the strength of the front cover are guaranteed, the weight of an automobile structure is improved, and the manufacturing cost is reduced.
Drawings
FIG. 1 is a schematic view of a front structure of an automobile for pedestrian protection in accordance with the present application;
FIG. 2 is a schematic view of a front cover of an automobile front molding according to the present application;
FIG. 3 is a schematic cross-sectional view of the front structure of the automobile of the present application;
FIG. 4 is a schematic structural view of the connection mode of the front cover and the lower inner plate of the side wall A column;
FIG. 5 is a schematic cross-sectional view of the front cover transverse structure of the present application;
FIG. 6 is a schematic cross-sectional view of the front cover longitudinal structure of the present application;
FIG. 7 is a schematic view of the front hood outer panel structure of the present application;
FIG. 8 is a schematic view of the inner panel structure of the front cover of the present application;
FIG. 9 is a schematic view of a front cowl inner panel welding assembly according to the present application;
FIG. 10 is a schematic view of the structure of the front cover hinge reinforcement and front cover inner panel connection of the present application;
FIG. 11 is a schematic view of the connection structure of the first front cover latch reinforcement and the front cover inner panel of the present application;
FIG. 12 is a schematic view of the connection structure of the second front cover latch reinforcement and the front cover inner panel of the present application.
Wherein, 1-front cover; 11-front cover outer plate; 12-a front cover inner plate; 13-front cover hinge left stiffener; 14-front cover hinge right stiffener; 15-a first front cover latch reinforcement; 16-a second front cover latch reinforcement; 161-connecting pins; 17-rivet assembly; 18-front cover cushion pad; 19-front cover hinge; 2-side walls; 21-a side pillar a lower inner panel; 3-fender; 31-fender mounting brackets; 4-front wheel arch decoration parts; 41-front wheel arch trim mounting bracket; 42-front wheel truck trim reinforcement; 5-fender mounting plate; 51-a buffer block support bracket; 6-front bumper; 61-front bumper side mounting bracket; 62-front bumper mounting bracket; 7-cavity.
Detailed Description
The application will be described in detail below with reference to the attached drawings and specific examples:
the following embodiments of the present application are described in terms of specific examples, and those skilled in the art will appreciate the advantages and capabilities of the present application from the disclosure herein. It should be noted that, the illustrations provided in the following embodiments are for illustration only, and are shown in schematic drawings, not physical drawings, and are not to be construed as limiting the application, and in order to better illustrate the embodiments of the application, certain components in the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
In the description of the present application, it should be understood that, if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc., that indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, it is merely for convenience in describing the present application and simplifying the description, and it is not indicated or implied that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, so that the terms describing the positional relationships in the drawings are merely for exemplary illustration and are not to be construed as limitations of the present application, and that the specific meanings of the terms described above may be understood by those skilled in the art according to circumstances.
Example 1,
1-2, the automobile front structure for pedestrian protection of the present embodiment comprises a front cover 1, a side wall 2, a fender 3, a front wheel arch ornament 4, a fender mounting plate 5 and a front bumper 6, wherein the side wall 2 is positioned above the fender 3, the front cover 1 is positioned in front of the fender 3, the front bumper 6 is positioned below the front cover 1, and the fender mounting plate 5 is positioned below the front cover 1; the front cover 1 and the fender 3 are longitudinally segmented at the front end of the side wall 2 and are cut off behind the central line of the front wheel arch decorating part 4, and a first segmentation line is formed by matching; the front cover 1 and the middle section of the front wheel arch decoration 4 are divided into blocks in the horizontal direction, and a second block dividing line is formed by matching.
As shown in fig. 1-3, a horizontally arranged fender bracket 31 is fixedly connected between a fender 3 and a fender mounting plate 5 in the present embodiment; one end of the fender mounting bracket 31 is connected with the fender 3 through bolts, and the other end of the fender mounting bracket 31 is welded with the fender mounting plate 5 through spot welding; one end of the front wheel arch decoration mounting bracket 41 is connected with the middle section of the front wheel arch decoration 4 through bolts, and the other end of the front wheel arch decoration mounting bracket 41 is welded with the fender mounting plate 5 through spot welding. The front bumper 6 is fixedly connected with the fender mounting plate 5; specifically, a front bumper side mounting bracket 61 is fixedly mounted on the inner side of the front bumper 6, a front bumper mounting bracket 62 is fixedly mounted on the side, away from the front bumper 6, of the front bumper side mounting bracket 61, and the side, away from the front bumper side mounting bracket 61, of the front bumper mounting bracket 62 is fixedly connected with the fender mounting plate 5.
As shown in fig. 5, 7 and 8, the front cover 1 of the present embodiment includes a front cover outer plate 11 and a front cover inner plate 12, and in order to reduce the weight of the entire front cover 1, the front cover outer plate 11 is made of six-series aluminum alloy material, and has a thickness of 0.8-1.0mm; the front cover inner plate 12 is made of five aluminum alloy materials, the thickness is 0.8-1.0mm, the circumferential end part of the front cover outer plate 11 and the circumferential end part of the front cover inner plate 12 are fixedly connected by adopting a die buckling or rolling taping process, and the thickness of the front cover outer plate 11 in the embodiment is 0.9mm; the thickness of the front cover inner plate 12 is 0.9mm, and the circumferential end of the front cover outer plate 11 and the circumferential end of the front cover inner plate 12 are fixedly connected by adopting a die buckling process.
As shown in fig. 3, a buffer block support bracket 51 is fixedly mounted on the fender mounting plate 5 in this embodiment, a front cover cushion pad 18 is disposed on the buffer block support bracket 51, and the distance from the upper end of the buffer block support bracket 51 to the outer surface of the front cover outer plate 11 is 70-80mm, specifically 70mm in this embodiment. The position of the buffer block supporting bracket 51 is in the vertical direction of the head collision of the pedestrian, the position is the nearest collision hard point from the outer surface of the front cover outer plate 11, the design is adopted, the height of the front cover buffer cushion 18 is added, the distance between the upper part of the fender mounting plate 5 and the front cover outer plate 11 is 80mm-160mm, a larger buffer space is provided for the head collision, the collision energy absorption is increased, and the head injury value is further reduced.
As shown in fig. 4, 9 and 10, in order to improve the hinge installation stability of the front cover 1 and the side wall 2, two sides of the rear end of the front cover inner plate 12 are fixedly connected with a front cover hinge left reinforcement 13 and a front cover hinge right reinforcement 14 respectively, and the front cover hinge left reinforcement 13 and the front cover hinge right reinforcement 14 are fixedly connected with the front cover inner plate 12 through a plurality of self-punching rivet assemblies 17; in order to prevent the contact electrochemical corrosion of the common steel plate and the aluminum alloy plate, the left reinforcing member 13 of the front cover hinge and the right reinforcing member 14 of the front cover hinge are made of galvanized steel plates. The side wall 2 comprises a side wall 2A post lower inner plate, and a front cover hinge 19 is arranged between the front cover hinge left reinforcement 13 and the front cover hinge right reinforcement 14 and the side wall 2A post lower inner plate. The front cover hinge 19 comprises a front cover male hinge, a hinge shaft pin and a front cover female hinge, wherein the front cover male hinge is fixedly connected with the front cover inner plate 12, the front cover female hinge is fixedly connected with the side wall 2A post lower inner plate, and the front cover male hinge is rotatably connected with the front cover female hinge through the hinge shaft pin; in order to enable the front cover 1 to be detached, the front cover male hinge is bolted to the front cover inner panel 12, and the front cover female hinge is bolted to the side body 2A pillar lower inner panel. Through the arrangement, in the process of overturning the front cover 1, the front cover 1 rotates along with the front cover male hinge, and when the front cover male hinge and the front cover female hinge rotate through the hinge shaft pin, the front cover female hinge is fixedly connected to the lower inner plate of the side wall 2A column in the embodiment, so that the front cover 1 is connected with a vehicle body; in addition, the front cover hinge 19 connected with the front cover 1 is located on the inner side of the fender 3 and the lower inner plate of the side wall 2A column, so that the front cover hinge 19 is located on the outer side of a human head collision test area in front of a vehicle, damage to human head collision caused by hard points at the hinge shaft sleeve position is avoided, and the vehicle collision safety performance is further improved.
As shown in fig. 2 and 3, the front wheel arch decoration 4 of the present embodiment includes a front section, a middle section and a rear section, the front section and the rear section of the front wheel arch decoration 4 are respectively connected with the front bumper 6 and the fender 3 in a snap-fit manner, and a front wheel arch decoration mounting bracket 41 which is horizontally arranged is fixedly connected between the middle section of the front wheel arch decoration 4 and the fender mounting plate 5; a cavity 7 is formed among the front cover 1, the front wheel arch decoration 4 and the fender mounting plate 5. The middle section of front wheel rim decoration 4 is provided with front wheel rim decoration reinforcement 43, and one side and front wheel rim decoration 4 fixed connection of front wheel rim decoration reinforcement 43, the opposite side and the front wheel rim decoration installing support 41 fixed connection of front wheel rim decoration reinforcement 42, the one end and fender mounting panel 5 fixed connection of front wheel rim decoration installing support 41 keeping away from front wheel rim decoration reinforcement 42. One side of the front wheel arch decoration reinforcement 42 is connected with the front wheel arch decoration 4 in a buckling manner, the other side of the front wheel arch decoration reinforcement 42 is connected with the front wheel arch decoration mounting bracket 41 in a buckling manner, and one end, far away from the front wheel arch decoration reinforcement 42, of the front wheel arch decoration mounting bracket 41 is welded with the fender mounting plate 5 through spot welding.
As shown in fig. 9 to 12, in order to make the installation of the front cover latch more stable, and also to increase the dent resistance and torsion resistance of the front cover 1, a first front cover latch reinforcement 15 and a second front cover latch reinforcement 16 are provided in the middle of the front end between the front cover outer plate 11 and the front cover inner plate 12, the first front cover latch reinforcement 15 is fixedly connected with the front cover inner plate 12 through a plurality of self-punching rivet assemblies 17, a plurality of connection pins 161 are fixedly connected with the second front cover latch reinforcement 16 in the circumferential direction, and each connection pin 161 is fixedly installed on the front cover inner plate 12 through a self-punching rivet assembly 17; as shown in fig. 6, the second front cover latch reinforcement 16 is disposed between the front cover outer plate 11 and the first front cover latch reinforcement 15, a plurality of strip-shaped grooves are formed in a side, close to the front cover outer plate 11, of the second front cover latch reinforcement 16, strip-shaped glue is disposed in the grooves, and the second front cover latch reinforcement 16 and the front cover outer plate 11 are bonded through the strip-shaped glue.
In order to solve the problem of electrochemical corrosion of the common steel plate in contact with the aluminum alloy plate, the first front cover latch reinforcement 15 and the second front cover latch reinforcement 16 are both made of galvanized steel plates. A gap of 80-160mm, 120mm in this embodiment, is provided between the side of the first front cover latch reinforcement 15 adjacent to the front cover outer plate 11 and the front cover outer plate 11. Through the setting in clearance, can provide sufficient buffering energy-absorbing space for the collision of vehicle front end head, reduce the injury to pedestrian's head, reduce the injury value.
The use principle and effect of the pedestrian-protectable automobile front structure of the embodiment are as follows:
in the embodiment, the front cover 1, the side wall 2, the fender 3, the front wheel arch decoration 4, the fender mounting plate 5 and the front bumper 6 are rearranged and mounted, the fender 3 and the front wheel arch decoration 4 are fixedly connected with the fender mounting plate 5 by utilizing the horizontally and transversely arranged fender mounting bracket 31 and the front wheel arch decoration mounting bracket 41, and a cavity 7 is formed among the front cover 1, the front wheel arch decoration 4 and the fender mounting plate 5. The mounting bracket structure in the vertical direction of the traditional automobile is greatly reduced in the collision area of the head of the pedestrian; the front lower car body is completely covered by the front cover 1, cavities are formed on the left side and the right side of the front part of the car, when the side part of a pedestrian is collided with the front cover 1, collision energy is absorbed by the front cover 1, no collision hard point exists below a collision area, so that collision injury to the head of the pedestrian caused by the upper area of the fender 3 in the prior art is reduced, injury value HIC to the head of the human body is reduced, and the safety performance of the car is improved.
The fender 3 of this embodiment no longer extends forward for go front shroud 1's appearance profile blocking line setting in the front wheel upper portion wheel arch department of anterior left and right sides, form a big front shroud 1 of similar umbrella type, there is not fender 3 panel between front shroud 1 and the front wheel arch decoration 4, front shroud 1 and front wheel arch decoration 4 direct mount match, no horizontal fender 3 panel has reduced pedestrian's head's collision injury, further reduced the injury value HIC to human head, improve the security performance of vehicle.
In this embodiment, a buffer block support bracket 51 is fixedly mounted on the fender mounting plate 5, and a front cover buffer pad 18 is disposed on the buffer block support bracket 51, and the distance from the upper end of the buffer block support bracket 51 to the outer surface of the front cover outer plate 11 is 70-80mm. In the front structure of the automobile, the buffer block support bracket is positioned in the vertical direction of the head collision of a pedestrian, and is a collision hard point closest to the outer surface of the front cover outer plate 11, so that the design is adopted, the height of the front cover buffer cushion 18 is added, the distance between the upper part of the fender mounting plate 5 and the front cover outer plate 11 is 70mm-80mm, a larger buffer space is provided for the head collision, the collision energy absorption is increased, and the head injury value is reduced.
In addition, in the embodiment, a gap is arranged between the first front cover lock pin reinforcement 15 and the front cover outer plate 11, so that sufficient buffering and energy absorbing space can be provided for the collision of the front end head of the vehicle, the head injury of pedestrians is reduced, and the injury value is reduced.
EXAMPLE 2,
The embodiment is a vehicle, which includes the above-mentioned front structure of the automobile and other parts of the automobile.
In the whole, the front end, the left side and the right side of the vehicle in the embodiment are respectively downwards extended, the left side and the right side are downwards extended to the front side and the rear side of a front wheel arch, a front cover inner plate 12 is jointed with a front cover outer plate 11 to form a cavity structure, a front cover 1 and a fender 3 are longitudinally segmented at the front end of a side wall 2, a fender 3 panel is not arranged between the front cover 1 and a front wheel arch decoration 4, the lower vehicle body of the front part of the vehicle is completely covered, a front cover hinge 19 connected with the front cover 1 and the vehicle body is arranged on the lower inner plate of the side wall 2A post at the rear end of the side wall 2A post, the hinge shaft completely avoids the range of a pedestrian protection area, a collision hard point is eliminated, a collision energy absorption space is increased, thereby reducing the damage to the head of the pedestrian and improving the safety performance of the vehicle.
The above embodiments are only for illustrating the technical solution of the present application and not for limiting the same, and although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present application, which is intended to be covered by the scope of the claims of the present application. The technology, shape, and construction parts of the present application, which are not described in detail, are known in the art.
It should be noted that references in the specification to "one embodiment," "an embodiment," "some alternative embodiments," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
It should be readily understood that the terms "on … …", "above … …" and "above … …" in this disclosure should be interpreted in the broadest sense such that "on … …" means not only "directly on something", but also includes "on something" with intermediate features or layers therebetween, and "above … …" or "above … …" includes not only the meaning "on something" or "above" but also the meaning "above something" or "above" without intermediate features or layers therebetween (i.e., directly on something).
Further, spatially relative terms, such as "below," "beneath," "above," "over," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application 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 or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.
Claims (13)
1. The utility model provides an automobile front structure that can be used to pedestrian protection, includes front shroud, side wall, fender, front wheel arch decoration, fender mounting panel and front bumper, its characterized in that: the side wall is positioned above the fender, the front cover is positioned in front of the fender, the front bumper is positioned below the front cover, and the fender mounting plate is positioned below the front cover; the front cover is hinged on the side wall, and the front bumper is fixedly connected with the fender mounting plate; a horizontally arranged fender mounting bracket is fixedly connected between the fender and the fender mounting plate; the front wheel arch decorating part comprises a front section, a middle section and a rear section, the front section and the rear section of the front wheel arch decorating part are respectively and fixedly connected with a front bumper and a fender, and a front wheel arch decorating part mounting bracket which is horizontally arranged is fixedly connected between the middle section of the front wheel arch decorating part and a fender mounting plate; a cavity is formed among the front cover, the front wheel arch decorating part and the fender mounting plate; the front cover and the fender are longitudinally segmented at the front end of the side wall and are stopped behind the central line of the front wheel arch decorating part, and a first segmentation line is formed by matching; the front cover and the middle section of the front wheel arch decorating part are partitioned in the horizontal direction, and a second partition line is formed by matching.
2. A front structure of an automobile for pedestrian protection as defined in claim 1, wherein: the front cover comprises a front cover outer plate and a front cover inner plate, wherein the front cover outer plate is made of six-series aluminum alloy material, and the thickness is 0.8-1.0mm; the front cover inner plate is made of five-series aluminum alloy, the thickness of the front cover inner plate is 0.8-1.0mm, and the circumferential end part of the front cover outer plate and the circumferential end part of the front cover inner plate are fixedly connected by adopting a die buckling or rolling and edging process.
3. A front structure of an automobile for pedestrian protection as defined in claim 2, wherein: the fender mounting plate is fixedly provided with a vertically arranged buffer block support bracket, a front cover buffer pad is arranged on the buffer block support bracket, and the distance from the end part of the buffer block support bracket, which is far away from the fender mounting plate, to the outer surface of the front cover outer plate is 70-80mm.
4. A front structure of an automobile for pedestrian protection as defined in claim 3, wherein: one end of the fender mounting bracket is connected with a fender bolt, and the other end of the fender mounting bracket is welded with the fender mounting plate through spot welding; one end of the front wheel arch decoration mounting bracket is connected with the middle section of the front wheel arch decoration by bolts, and the other end of the front wheel arch decoration mounting bracket is welded with the fender mounting plate by spot welding.
5. A front structure of an automobile for pedestrian protection as defined in claim 4, wherein: the side wall comprises a side wall A post lower inner plate, and a front cover hinge is arranged between the front cover and the side wall A post lower inner plate; the front cover hinge comprises a front cover male hinge, a hinge shaft pin and a front cover female hinge, wherein the front cover male hinge is fixedly connected with a front cover inner plate, the front cover female hinge is fixedly connected with a side wall A column lower inner plate, and the front cover male hinge is rotatably connected with the front cover female hinge through the hinge shaft pin.
6. A front structure of an automobile for pedestrian protection as defined in claim 5, wherein: the front cover male hinge is connected with the front cover inner plate through bolts, and the front cover female hinge is connected with the side wall A post lower inner plate through bolts.
7. A front structure of an automobile for pedestrian protection as defined in claim 6, wherein: front cover hinge reinforcements are fixedly connected to two sides of the rear end of the front cover inner plate, and are connected with the front cover inner plate through a plurality of self-punching rivet assemblies, and front cover male hinge bolts are connected to the front cover hinge reinforcements; the front cover hinge reinforcement is made of galvanized steel plates.
8. A front structure of an automobile for pedestrian protection as defined in claim 7, wherein: a first front cover lock pin reinforcement and a second front cover lock pin reinforcement are arranged in the middle of the front end between the front cover outer plate and the front cover inner plate, the first front cover lock pin reinforcement is fixedly connected with the front cover inner plate through a plurality of self-punching rivet assemblies, a plurality of connecting pins are fixedly connected in the circumferential direction of the second front cover lock pin reinforcement, and each connecting pin is fixedly arranged on the front cover inner plate through the self-punching rivet assemblies; the second front cover lock pin reinforcement is arranged between the front cover outer plate and the first front cover lock pin reinforcement, a plurality of strip-shaped grooves are formed in one side, close to the front cover outer plate, of the second front cover lock pin reinforcement, strip-shaped glue is arranged in the grooves, and the second front cover lock pin reinforcement is bonded with the front cover outer plate through the strip-shaped glue.
9. A front structure of an automobile for pedestrian protection as defined in claim 8, wherein: the first front cover lock pin reinforcement and the second front cover lock pin reinforcement are made of galvanized steel plates.
10. A front structure of an automobile for pedestrian protection as defined in claim 9, wherein: a gap of 80-160mm is arranged between one side, close to the front cover outer plate, of the first front cover lock pin reinforcement and the front cover outer plate.
11. A front structure of an automobile for pedestrian protection as defined in claim 10, wherein: the front section of the front wheel arch decorating part is connected with a front bumper buckle, and the rear section of the front wheel arch decorating part is connected with a fender buckle; the middle section of front wheel arch decoration is provided with front wheel arch decoration reinforcement, one side and front wheel arch decoration fixed connection of front wheel arch decoration reinforcement, the opposite side and the front wheel arch decoration installing support fixed connection of front wheel arch decoration reinforcement, front wheel arch decoration installing support keeps away from the one end and the fender mounting panel fixed connection of front wheel arch decoration reinforcement.
12. A front structure of an automobile for pedestrian protection as defined in claim 11, wherein: one side of front wheel arch decoration reinforcement is connected with front wheel arch decoration buckle, the opposite side of front wheel arch decoration reinforcement is connected with front wheel arch decoration installing support buckle, front wheel arch decoration installing support keeps away from the one end of front wheel arch decoration reinforcement and passes through spot welding with the fender mounting panel.
13. A vehicle, characterized in that: the vehicle includes the automobile front structure of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211042125.1A CN115320723B (en) | 2022-08-29 | 2022-08-29 | Automobile front structure capable of being used for pedestrian protection and automobile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211042125.1A CN115320723B (en) | 2022-08-29 | 2022-08-29 | Automobile front structure capable of being used for pedestrian protection and automobile |
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| CN115320723A CN115320723A (en) | 2022-11-11 |
| CN115320723B true CN115320723B (en) | 2023-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211042125.1A Active CN115320723B (en) | 2022-08-29 | 2022-08-29 | Automobile front structure capable of being used for pedestrian protection and automobile |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116118876B (en) * | 2023-02-16 | 2024-09-24 | 重庆长安汽车股份有限公司 | Front cover air pressure stay bar mounting structure based on pedestrian protection and vehicle |
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|---|---|---|---|---|
| EP1129928B1 (en) * | 2000-02-29 | 2003-05-07 | Volkswagen Aktiengesellschaft | Mudguard for a motor vehicle |
| CN202686237U (en) * | 2012-07-16 | 2013-01-23 | 无锡同捷汽车设计有限公司 | Sectional-type wheel trim structure |
| CN209739171U (en) * | 2018-12-24 | 2019-12-06 | 阿尔特汽车技术股份有限公司 | Fender mounting structure for pedestrian protection |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9321495B2 (en) * | 2012-08-31 | 2016-04-26 | GM Global Technology Operations LLC | Method of assembling a front end assembly of a vehicle |
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- 2022-08-29 CN CN202211042125.1A patent/CN115320723B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1129928B1 (en) * | 2000-02-29 | 2003-05-07 | Volkswagen Aktiengesellschaft | Mudguard for a motor vehicle |
| CN202686237U (en) * | 2012-07-16 | 2013-01-23 | 无锡同捷汽车设计有限公司 | Sectional-type wheel trim structure |
| CN209739171U (en) * | 2018-12-24 | 2019-12-06 | 阿尔特汽车技术股份有限公司 | Fender mounting structure for pedestrian protection |
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