CN115320723A - 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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- CN115320723A CN115320723A CN202211042125.1A CN202211042125A CN115320723A CN 115320723 A CN115320723 A CN 115320723A CN 202211042125 A CN202211042125 A CN 202211042125A CN 115320723 A CN115320723 A CN 115320723A
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- front cover
- wheel trim
- fender
- front wheel
- hinge
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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 invention relates to the technical field of automobile bodies, in particular to an automobile front structure capable of being used for pedestrian protection and an automobile, which comprise a front cover, a side wall, a fender, a front wheel trim, a fender mounting plate and a front bumper, wherein 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 fender mounting bracket is fixedly connected between the fender and the fender mounting plate; the front wheel trim decorating part comprises a front section, a middle section and a rear section, the front section and the rear section of the front wheel trim decorating part are fixedly connected with the front bumper and the fender respectively, and a front wheel trim decorating part mounting bracket is fixedly connected between the middle section of the front wheel trim decorating part and the fender mounting plate; the front cover, the front wheel trim and the fender mounting plate form a cavity. The invention can reduce the damage value HIC to the head of a human body when the pedestrian collides, and improve the safety performance of the vehicle.
Description
Technical Field
The invention relates to the technical field of automobile bodies, in particular to an automobile front structure capable of being used for pedestrian protection and an automobile.
Background
With the development of modern automobiles, people have higher and higher requirements on the appearance and the quality of the automobiles; the pedestrian protection method has the advantages that the requirements of users are met, on the basis of the consideration of road traffic safety, in order to reduce the casualty rate of collision accidents of vehicles to pedestrians, the regulations for collision protection of vehicles to pedestrians in China are gradually improved, the C-NCAP evaluation content also brings the pedestrian protection into the investigation item, the collision area of pedestrians mainly occurs in the front of the vehicles, and the pedestrian protection performance of the front of the vehicles is related to the design of the front structure of the vehicles.
In the existing automobile front structure, an automobile front cover is separated from a fender, and the fender is inevitably located in a pedestrian protection area, for example, patent with publication number CN209739171U discloses a pedestrian protection fender mounting structure, which comprises a fender, a body-in-white 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 car body assembly is provided with a hole and welded with a square nut in a protruding mode, the lower end of the L-shaped support is provided with a nut hole, and the L-shaped support is fastened with the white car body assembly through a gasket combination bolt penetrating through the nut hole and the square nut. This technical scheme's pedestrian's fender mounting structure has increaseed the installation hard spot and has kept apart from the distance of surface, has weakened the flange structure and the installing support structure of fender, and in the pedestrian protection head collision process, improve energy absorption's efficiency, reduce the injury value HIC to the head, improve pedestrian's ability of protecting.
If the patent of publication No. CN114104109A discloses a magnesium alloy front end frame assembly and vehicle that do benefit to pedestrian's protection again, including frame body and shank protection crossbeam, the frame body is integrated into one piece's magnesium alloy die casting, shank protection crossbeam left and right end portion side is connected with the energy-absorbing box front end, the left and right both sides of frame body integrated into one piece respectively have first mounting panel, the energy-absorbing box rear end is connected with the first mounting panel front side of frame body. This technical scheme passes through the setting of energy-absorbing box, mouthful style of calligraphy breach, can effectively promote the pedestrian's protective properties among the collision process, satisfies automobile body lightweight demand.
Although the existing automobile front structure can achieve a certain pedestrian protection effect through a specific structural design, the distance between the mounting hard points and the outer surface of the automobile body is usually short due to limited automobile body structure, so that the head collision injury value HIC of a pedestrian is still higher, and the comprehensive evaluation score of C-NCAP is influenced.
Disclosure of Invention
In view of the above, the present invention provides a front structure of an automobile and a vehicle for protecting pedestrians, which can reduce the damage value HIC to the head of a human body when a pedestrian collides by reducing the collision hard points in the front collision area of the automobile, thereby improving the safety performance of the vehicle.
The invention solves the technical problems by the following technical means:
a front structure of an automobile for protecting pedestrians comprises a front cover, a side wall, a fender, a front wheel trim, a fender mounting plate and a front bumper, wherein 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 to 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 trim decorating part comprises a front section, a middle section and a rear section, the front section and the rear section of the front wheel trim decorating part are respectively and fixedly connected with a front bumper and a fender, and a horizontally arranged front wheel trim decorating part mounting bracket is fixedly connected between the middle section of the front wheel trim decorating part and the fender mounting plate; and a cavity is formed among the front cover, the front wheel trim decorating part and the fender mounting plate.
The fender mounting bracket and the front wheel trim mounting bracket which are horizontally and transversely arranged are utilized to fixedly connect the fender, the front wheel trim and the fender mounting plate, so that a cavity is formed among the front cover, the front wheel trim and the fender mounting plate. The mounting bracket structure in the vertical direction of the traditional automobile is greatly reduced in the head collision area of the pedestrian; utilize the front shroud profile to get off the car body cladding completely before with, all form the cavity in the anterior left and right both sides of vehicle, when the pedestrian lateral part suffers collision and front shroud contact, the collision energy is absorbed by the front shroud, and there is not the collision hard spot in collision region below to reduce among the prior art the regional collision injury to the pedestrian head of fender upper portion, reduce the injury value HIC to the human head, improve the security performance of vehicle.
Furthermore, the front cover and the fender are longitudinally partitioned at the front end of the side wall and cut off behind the central line of the front wheel trim part to form a first partitioning line in a matching manner; the middle section horizontal direction piecemeal of front shroud and front wheel trim, the matching forms the second piecemeal line. So set up, make this technical scheme's fender no longer extend 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 of car, form the big front shroud of a similar umbrella formula, there is not the fender panel between front shroud and the front wheel arch decoration, the front shroud matches with front wheel arch decoration direct mount, horizontal fender panel has not been had, reduce the collision injury of pedestrian's head, the injury value HIC to human head has further been reduced, the security performance of vehicle is improved.
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 a six-series aluminum alloy material and is 0.8-1.0mm in thickness; the front cover inner plate is made of a five-series aluminum alloy material, the thickness of the front cover inner plate is 0.8-1.0mm, and the circumferential end part of the front cover outer plate is fixedly connected with the circumferential end part of the front cover inner plate through die buckling or a rolling edge covering process. The front cover outer plate and the front cover inner plate are made of aluminum alloy materials, so that the structure is lightened to the greatest extent, the opening force of the front cover is reduced, and the operation comfort is improved; the circumferential end part of the front cover outer plate is fixedly connected with the circumferential end part of the front cover inner plate by adopting a die buckling or rolling edge covering process, so that the front cover outer plate and the front cover inner plate are tightly connected into a whole.
Furthermore, fixed mounting has the buffer block support frame of vertical setting on the fender mounting panel, be provided with the front shroud blotter on the buffer block support frame, the distance that the tip of fender mounting panel was kept away from to the surface of front shroud planking to the buffer block support frame is 70-80mm. In the front structure of car, the position that buffer block support frame was located is the vertical direction of pedestrian's head collision, and apart from the nearest collision hard spot of front shroud planking surface distance, design like this, including the height of front shroud blotter, fender mounting panel upper portion part will possess 70mm-80 mm's interval apart from between the front shroud planking, for the head collision provides great buffer space, increase the energy absorption of colliding, reduces the head injury value.
Furthermore, 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; the one end of front wheel trim decoration installing support and the middle section bolted connection of front wheel trim decoration, the other end and the fender mounting panel of front wheel trim decoration installing support pass through spot welding. So connected mode for the fender and the preceding wheel trim can be convenient the dismantlement get off, and ensure fender and preceding wheel trim at the assembly precision of automobile body height and width direction, improve outward appearance and automobile body quality.
Further, the side wall comprises a side wall A column lower inner plate, and a front cover hinge is arranged between the front cover and the side wall A column lower inner plate; the front cover hinge comprises a front cover male hinge, a hinge shaft pin and a front cover female hinge, the front cover male hinge is fixedly connected with the front cover inner plate, the front cover female hinge is fixedly connected with the side wall column A 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 process of overturning the front cover, the front cover rotates along with the front cover male hinge, when the front cover male hinge and the front cover female hinge rotate through the hinge shaft pin, and the scheme fixedly connects the front cover female hinge to the side wall A column lower inner plate, so that the connection of the front cover and the vehicle body is realized; and the front shroud hinge that this technical scheme and front shroud are connected is located the inboard of fender to and on side wall A post lower inner panel, make the front shroud hinge be located the anterior human head collision test regional outside of vehicle, thereby avoided the injury of hinge pin sleeve position hard point to human head collision, further improved vehicle collision security performance.
Furthermore, the front cover male hinge is connected with a front cover inner plate through a bolt, and the front cover female hinge is connected with a side wall A column lower inner plate through a bolt. 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.
Furthermore, both sides of the rear end of the front cover inner plate are fixedly connected with front cover hinge reinforcements, the front cover hinge reinforcements are connected with the front cover inner plate through a plurality of self-punching rivet assemblies, and a front cover male hinge bolt is connected on the front cover hinge reinforcements; the front cover hinge reinforcer is made of galvanized steel sheets. 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 reinforcements 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 reinforcing piece is made of galvanized steel sheets, so that the problem of contact electrochemical corrosion of common steel sheets and aluminum alloy sheets is solved, and the lightweight, the connection rigidity of the front cover hinge and the durability of the vehicle are both considered.
Furthermore, a first front cover lock pin reinforcing piece and a second front cover lock pin reinforcing piece 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 reinforcing piece is fixedly connected with the front cover inner plate through a plurality of self-piercing rivet assemblies, a plurality of connecting pins are fixedly connected to the second front cover lock pin reinforcing piece in the circumferential direction, and each connecting pin is fixedly installed on the front cover inner plate through the self-piercing rivet assemblies; the second front cover lockpin reinforcement is arranged between the front cover outer plate and the first front cover lockpin reinforcement, one side, close to the front cover outer plate, of the second front cover lockpin reinforcement is provided with a plurality of strip-shaped grooves, strip-shaped glue is arranged in the grooves, and the second front cover lockpin 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 reinforcing piece and the second front cover lock pin reinforcing piece are arranged in the middle of the front end between the front cover outer plate and the front cover inner plate, the front cover lock pin of an automobile is generally installed at the position, the front cover lock pin can be installed more stably, and the anti-concave and anti-torsion performance of the front cover can be improved.
Further, the first front cover lock pin reinforcing piece and the second front cover lock pin reinforcing piece are made of galvanized steel plates. The galvanized steel sheet is all preferred to the front shroud lockpin reinforcement of this technical scheme, can solve ordinary steel sheet and aluminum alloy plate contact electrochemical corrosion problem, compromises lightweight and front shroud hinge department connection rigidity intensity and vehicle durability simultaneously.
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 reinforcing piece and the front cover outer plate. This technical scheme is through setting up the clearance between first front shroud lockpin reinforcement and front shroud planking, can provide sufficient buffering energy-absorbing space for vehicle front end head collision, reduces the injury to pedestrian's head, reduces the injury value.
Furthermore, the front section of the front wheel trim decorating part is connected with a front bumper in a buckling mode, and the rear section of the front wheel trim decorating part is connected with a fender in a buckling mode; the middle section of the front wheel trim is provided with a front wheel trim reinforcing piece, one side of the front wheel trim reinforcing piece is fixedly connected with the front wheel trim, the opposite side and the front wheel trim installing support fixed connection of front wheel trim decoration reinforcement, the one end and the fender mounting panel fixed connection of front wheel trim decoration reinforcement are kept away from to front wheel trim decoration installing support. According to the technical scheme, the rear section of the front wheel trim decorating part assembly is connected with the fender assembly in a buckling mode, and the rear section of the front wheel trim decorating part is connected with the fender buckle in a buckling mode, so that the front section and the rear section of the front wheel trim decorating part assembly can be stably installed, and the matching installation accuracy of the front section and the rear section of the front wheel trim decorating part can be ensured; in addition, the arrangement of the front wheel trim reinforcing piece can increase the structural strength of the front wheel trim, the front wheel trim reinforcing piece is arranged on the inner side of the middle section of the front wheel trim, and the middle section of the front wheel trim is fixedly arranged on the fender mounting plate through a front wheel trim mounting bracket; thereby realize the firm installation of front wheel trim and automobile body.
Furthermore, one side of the front wheel trim reinforcing piece is connected with the front wheel trim by a buckle, the other side of the front wheel trim reinforcing piece is connected with the front wheel trim mounting bracket by a buckle, the one end that front wheel trim decoration reinforcing member was kept away from to front wheel trim decoration installing support passes through spot welding with the fender mounting panel. Such connected mode is connected through the mode that the buckle is connected can front wheel arch decoration reinforcement, ensures front wheel arch decoration and automobile body width and direction of height installation accuracy, also can ensure the installation accuracy of front wheel arch decoration installing support and automobile body.
The invention also discloses a vehicle, which comprises the automobile front structure and other parts of the automobile. The vehicle front end, the left side, the right side is downwardly extending respectively, the left and right sides is downwardly extending to front wheel eyebrow front and back side, the front shroud inner panel forms cavity structures with the joint of front shroud planking, the front shroud vertically divides the piece with the fender in the front end department of side wall, there is not the fender panel between front shroud and the front wheel eyebrow decoration, the automobile front portion body of getting off covers completely, and the front shroud hinge of front shroud and body connection sets up on the inner panel under the side wall A post rear end side wall A post, the hinge pin avoids outside pedestrian protection zone range completely, the collision hard point has been cancelled, the collision energy absorption space has been increased, thereby reduce the injury to pedestrian's head, vehicle safety performance has been improved.
It should be noted that the front, rear, left, right, up, down and other directions in the technical solution are all defined and described by the front, rear, left, right, up and down relationship of the automobile in the driving position.
In addition, the automobile front structure capable of being protected by people can be suitable for a traditional fuel automobile front cover and also suitable for an electric automobile front cover provided with a front trunk, and when the automobile front structure is arranged on an electric automobile, the cruising mileage of the electric automobile can be improved, and the operation convenience and comfort when the front trunk is used for placing and taking objects are met.
The invention discloses an automobile front structure for pedestrian protection and an automobile, which have the following advantages:
1. the front structure of the automobile is characterized in that the front structure of the automobile is formed by rearranging and installing a front cover, a side wall, a fender, a front wheel trim, a fender mounting plate and a front bumper, and fixedly connecting the fender and the front wheel trim with the fender mounting plate by utilizing a horizontal and transverse fender mounting bracket and a front wheel trim mounting bracket, so that a cavity is formed among the front cover, the front wheel trim and the fender mounting plate; the fender mounting bracket connected with the vertical direction of the automobile body at the upper parts of the front wheels at the left and right sides of the front part of the automobile in the prior art is eliminated, namely, the head collision hard points are eliminated, so that the collision injury of the front part of the automobile to the head of a pedestrian is reduced, and the safety performance of the automobile is improved.
2. The front cover of the automobile is respectively extended downwards at the front end, the left side and the right side of the automobile, the left side and the right side of the front cover are extended downwards to the front and the rear sides of a wheel arch of a front wheel, a front cover inner plate and a front cover outer plate are combined to form a cavity structure, the front cover and a fender are longitudinally partitioned at the front end of the side wall, a fender panel is not arranged between the front cover and a front wheel arch decoration part, the lower body at the front part of the automobile is completely covered, a front cover hinge connected with the automobile body is arranged on a side wall A column lower inner plate at the rear end side of a side wall A column, a hinge shaft completely avoids the range of a pedestrian protection area, a collision hard point is cancelled, and a collision energy absorption space is increased, so that the injury to the head of pedestrians is reduced, and the safety performance of the automobile is improved.
3. The front cover is made of a steel-aluminum mixed material, so that the rigidity and the strength of the front cover are ensured while the requirement of pedestrian collision protection is met, the light weight of an automobile structure is improved, and the manufacturing cost is reduced.
Drawings
Fig. 1 is a schematic structural view of a front structure of an automobile usable for pedestrian protection according to the present invention;
FIG. 2 is a schematic, fragmentary view of a front cover of the vehicle front molding of the present invention;
FIG. 3 is a schematic cross-sectional view of a front structure of an automobile according to the present invention;
FIG. 4 is a schematic structural view of a connecting mode of a front cover and a side wall pillar A lower inner plate of the invention;
FIG. 5 is a cross-sectional view of a transverse structure of the front cover of the present invention;
FIG. 6 is a cross-sectional view of the longitudinal structure of the front cover of the present invention;
FIG. 7 is a schematic structural view of an outer plate of the front cover according to the present invention;
FIG. 8 is a schematic view of the inner panel structure of the front cover of the present invention;
FIG. 9 is a schematic view of a front cover inner panel weld assembly of the present invention;
FIG. 10 is a schematic view of the connection structure of the front cover hinge reinforcement and the front cover inner panel according to the present invention;
FIG. 11 is a schematic view of a first front cover latch reinforcement and a front cover inner panel attachment structure of the present invention;
FIG. 12 is a schematic view showing a structure of coupling a second front cover latch reinforcement of the present invention to a front cover inner panel.
Wherein, 1-front cover; 11-a front cover outer plate; 12-a front cover inner panel; 13-front hood hinge left stiffener; 14-front hood hinge right stiffener; 15-a first front cover latch reinforcement; 16-a second front cover latch reinforcement; 161-connecting pin; 17-a rivet assembly; 18-front cover cushion; 19-a front cover hinge; 2-side wall; 21-side wall A pillar lower inner plate; 3-a fender; 31-a fender mounting bracket; 4-front wheel trim parts; 41-front wheel trim mounting bracket; 42-front wheel trim stiffener; 5-a fender mounting plate; 51-a buffer block support bracket; 6-front bumper; 61-front bumper side mounting bracket; 62-a front bumper mounting bracket; 7-cavity.
Detailed Description
The invention will be described in detail below with reference to the following figures and specific examples:
the following description of the embodiments of the present invention is provided by way of specific examples, and those skilled in the art will appreciate the advantages and utilities of the present invention from the disclosure herein. It should be noted that the drawings provided in the following embodiments are only for illustrative purposes, are schematic drawings rather than actual drawings, and are not to be construed as limiting the invention, and in order to better illustrate the embodiments of the invention, some components in the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and their descriptions may be omitted.
In the description of the present invention, it should be understood that, if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, the terms are used for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, the terms describing the positional relationships in the drawings are used for illustrative purposes only and should not be construed as limiting the present invention, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
Examples 1,
The front structure of the automobile for protecting pedestrians of the embodiment, as shown in fig. 1-2, includes a front cover 1, a side wall 2, a fender 3, a front wheel trim 4, a fender mounting plate 5 and a front bumper 6, where the side wall 2 is located above the fender 3, the front cover 1 is located in front of the fender 3, the front bumper 6 is located below the front cover 1, and the fender mounting plate 5 is located below the front cover 1; the front cover 1 and the fender 3 are longitudinally partitioned at the front end of the side wall 2 and cut behind the central line of the front wheel trim 4 to form a first partition line in a matching manner; the middle sections of the front cover 1 and the front wheel trim decorating part 4 are horizontally partitioned and matched to form a second partitioning line.
As shown in fig. 1 to 3, a fender mounting bracket 31 is fixedly connected between the fender 3 and the fender mounting plate 5; one end of the fender mounting bracket 31 is connected with the fender 3 through a bolt, 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 trim mounting bracket 41 is bolted to the middle section of the front wheel trim 4, and the other end of the front wheel trim mounting bracket 41 is welded to the fender mounting plate 5 by 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 one side, away from the front bumper 6, of the front bumper side mounting bracket 61, and one 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, in order to reduce the weight of the whole front cover 1 and make the front cover 1 easier to open, the front cover outer plate 11 is made of six series aluminum alloy, and the thickness is 0.8-1.0mm; the front cover inner plate 12 is made of five-series aluminum alloy materials, the thickness is 0.8-1.0mm, the circumferential end part of the front cover outer plate 11 is fixedly connected with the circumferential end part of the front cover inner plate 12 by adopting a die buckling or rolling edge covering process, and the thickness of the front cover outer plate 11 is 0.9mm in the embodiment; the thickness of the front cover inner plate 12 is 0.9mm, and the circumferential end part of the front cover outer plate 11 is fixedly connected with the circumferential end part of the front cover inner plate 12 by adopting a die buckling process.
As shown in fig. 3, a vertically arranged buffer block supporting bracket 51 is fixedly mounted on the fender mounting plate 5 of the present embodiment, a front cover cushion 18 is arranged on the buffer block supporting bracket 51, and the distance from the upper end of the buffer block supporting bracket 51 to the outer surface of the front cover outer plate 11 is 70-80mm, specifically 70mm in the present embodiment. The setting like this of this embodiment, the position that its buffer block support 51 was located is the vertical direction of pedestrian's head collision, apart from the nearest collision hard spot of front shroud planking 11 surface distance, and such design, including the height of front shroud blotter 18, fender mounting panel 5 upper portion part will possess 80mm-160 mm's interval apart from between the front shroud planking 11, for the head collision provides great buffer space, increase the energy absorption of collision, further reduce the head injury value.
As shown in fig. 4, 9 and 10, in order to improve the hinge mounting stability of the front cover 1 and the side panel 2, a front cover hinge left reinforcement 13 and a front cover hinge right reinforcement 14 are respectively and fixedly connected to two sides of the rear end of the front cover inner panel 12, and the front cover hinge left reinforcement 13 and the front cover hinge right reinforcement 14 are both fixedly connected to the front cover inner panel 12 through a plurality of self-piercing rivet assemblies 17; in order to prevent the electrochemical corrosion caused by the contact between the common steel plate and the aluminum alloy plate, the front cover hinge left reinforcing piece 13 and the front cover hinge right reinforcing piece 14 are made of galvanized steel plates. The side wall 2 comprises a side wall 2A column lower inner plate, and a front cover hinge 19 is arranged between the front cover hinge left reinforcing part 13 and the front cover hinge right reinforcing part 14 and the side wall 2A column lower inner plate. The front cover hinge 19 comprises a front cover male hinge, a hinge shaft pin and a front cover female hinge, 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 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 order to enable the front cover 1 to be detached, the front cover male hinge is connected with the front cover inner plate 12 through bolts, and the front cover female hinge is connected with the side wall 2A pillar lower inner plate through bolts. 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 side wall 2A column lower inner plate in the embodiment, so that the connection of the front cover 1 and the vehicle body is realized; in addition, the front cover hinge 19 connected with the front cover 1 is positioned 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 positioned on the outer side of a human head collision test area in the front of the vehicle, the damage of the hard point of the hinge shaft sleeve position to the human head collision is avoided, and the vehicle collision safety performance is further improved.
As shown in fig. 2 and 3, the front wheel trim 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 trim 4 are respectively connected to the front bumper 6 and the fender 3 by snap-fitting, and a horizontally disposed front wheel trim mounting bracket 41 is fixedly connected between the middle section of the front wheel trim 4 and the fender mounting plate 5; a cavity 7 is formed among the front cover 1, the front wheel trim 4 and the fender mounting plate 5. Front wheel trim 4's middle section is provided with front wheel trim reinforcement 43, one side and front wheel trim 4 fixed connection of front wheel trim reinforcement 43, front wheel trim reinforcement 42's opposite side and front wheel trim installing support 41 fixed connection, front wheel trim installing support 41 keeps away from front wheel trim reinforcement 42's one end and fender mounting panel 5 fixed connection. One side and 4 buckle connections of front wheel trim of front wheel trim reinforcement 42, the opposite side and the 41 buckle connections of front wheel trim reinforcement 42 of front wheel trim decoration installing support 41, and front wheel trim installing support 41 keeps away from the one end and the fender mounting panel 5 of front wheel trim decoration reinforcement 42 and welds through spot welding.
As shown in fig. 9 to 12, in order to make the installation of the front cover lock pin more stable and to increase the dent resistance and torsion resistance of the front cover 1, a first front cover lock pin reinforcement 15 and a second front cover lock pin reinforcement 16 are arranged 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 lock pin reinforcement 15 is fixedly connected with the front cover inner plate 12 through a plurality of self-piercing rivet assemblies 17, a plurality of connecting legs 161 are fixedly connected to the second front cover lock pin reinforcement 16 in the circumferential direction, and each connecting leg 161 is fixedly installed on the front cover inner plate 12 through the self-piercing rivet assembly 17; as shown in fig. 6, the second front cover lock pin reinforcement 16 is disposed between the front cover outer plate 11 and the first front cover lock pin reinforcement 15, a plurality of strip-shaped grooves are formed in one side of the second front cover lock pin reinforcement 16 close to the front cover outer plate 11, strip-shaped glue is disposed in the grooves, and the second front cover lock pin reinforcement 16 is bonded to the front cover outer plate 11 through the strip-shaped glue.
In order to solve the problem of electrochemical corrosion caused by the contact of a common steel plate and an aluminum alloy plate, the first front cover lock pin reinforcing piece 15 and the second front cover lock pin reinforcing piece 16 are made of galvanized steel plates. A gap of 80-160mm, 120mm in this embodiment, is provided between the side of the first front hood striker reinforcement 15 close to the front hood outer panel 11 and the front hood outer panel 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 the effect of the automobile front structure capable of protecting people in the embodiment are as follows:
the rearrangement installation of front shroud 1, side wall 2, fender 3, front wheel trim 4, fender mounting panel 5 and front bumper 6 is passed through to this embodiment, utilizes horizontal fender installing support 31 and the horizontal fender installing support 41 that sets up of front wheel trim to take turns fender 3 and front wheel trim 4 and fender mounting panel 5 fixed connection for form cavity 7 between front shroud 1, front wheel trim 4 and the fender mounting panel 5. The mounting bracket structure in the vertical direction of the traditional automobile is greatly reduced in the head collision area of the pedestrian; utilize 1 profile of front shroud to go down the automobile body cladding completely before with, all form the cavity in the anterior left and right both sides of vehicle, when the pedestrian lateral part suffered to collide with front shroud 1 contact, the collision energy was absorbed by front shroud 1, and no collision hard spot below the collision region to reduce 3 upper portion regions of fender among the prior art and to the collision injury of pedestrian's head, reduce the injury value HIC to human head, improve the security performance of vehicle.
The fender 3 of this embodiment also extends forward no longer, make the appearance profile blocking line that goes front shroud 1 set up in the anterior left and right sides front wheel upper portion wheel arch department of car, form a big front shroud 1 of similar umbrella formula, there is not fender 3 panel between front shroud 1 and the front wheel arch decoration 4, front shroud 1 matches with 4 direct mountings of front wheel arch decoration, horizontal fender 3 panel has not been had, reduce pedestrian's head's collision injury, the injury value HIC to human head has further been reduced, improve the security performance of vehicle.
In the embodiment, a vertically arranged buffer block supporting bracket 51 is fixedly arranged on the fender mounting plate 5, a front cover buffer cushion 18 is arranged on the buffer block supporting bracket 51, and the distance from the upper end part of the buffer block supporting bracket 51 to the outer surface of the front cover outer plate 11 is 70-80mm. In the front structure of car, the position that buffer block support frame is located is the vertical direction of pedestrian's head collision, apart from the nearest collision hard spot of 11 surface distances in front shroud planking, and design like this, including the height of front shroud blotter 18, fender mounting panel 5 upper portion part will possess 70mm-80 mm's interval apart from between the front shroud planking 11, for the head collision provides great buffer space, increase the energy absorption of colliding, reduce the head injury value.
In addition, in the embodiment, a gap is arranged between the first front cover lock pin reinforcing piece 15 and the front cover outer plate 11, so that a sufficient buffering 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.
Examples 2,
The embodiment is a vehicle, and the vehicle comprises the automobile front structure and other parts of the automobile.
In a whole, the front end, the left side and the right side of the vehicle of the embodiment are respectively extended downwards, the left side and the right side are extended downwards to the front and rear sides of a wheel arch of a front wheel, a front cover inner plate 12 and a front cover outer plate 11 are combined to form a cavity structure, a front cover 1 and a fender 3 are longitudinally partitioned 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 decorating part 4 to completely cover a lower body in the front of the vehicle, a front cover hinge 19 for connecting the front cover 1 and the vehicle body is arranged on a lower inner plate of a side wall 2A column at the rear end of the side wall 2A column, the hinge shaft completely avoids the outside of a pedestrian protection area range, collision hard points are cancelled, a collision energy absorption space is increased, the injury to the head of pedestrians is reduced, and the safety performance of the vehicle is improved.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the true spirit and scope of the present invention, which is defined by the claims appended hereto. The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.
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. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, 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 "over 8230" \8230on "," over 82308230; "over 8230;" and "over 8230; \8230; over" in the present disclosure should be interpreted in the broadest manner such that "over 8230;" over 8230 ";" not only means "directly over something", but also includes the meaning of "over something" with intervening features or layers therebetween, and "over 8230;" over 8230 ";" or "over 8230, and" over "not only includes the meaning of" over "or" over "but also may include the meaning of" over "or" over "with no intervening features or layers therebetween (i.e., directly over something).
Furthermore, spatially relative terms, such as "under," "below," "beneath," "above," "over," and the like, may be used herein for ease of description to describe one element or feature's illustrated relationship to another element or feature. 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 be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It is 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. Also, 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 phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (14)
1. The utility model provides a car front structure that can be used to pedestrian's protection, includes front shroud, side wall, fender, front wheel trim, 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 to 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 trim decorating part comprises a front section, a middle section and a rear section, the front section and the rear section of the front wheel trim decorating part are respectively and fixedly connected with a front bumper and a fender, and a horizontally arranged front wheel trim decorating part mounting bracket is fixedly connected between the middle section of the front wheel trim decorating part and the fender mounting plate; and a cavity is formed among the front cover, the front wheel trim decorating part and the fender mounting plate.
2. A vehicle front structure usable for pedestrian protection according to claim 1, wherein: the front cover and the fender are longitudinally partitioned at the front end of the side wall, and cut behind the central line of the front wheel trim part to form a first partition line in a matching manner; the middle section horizontal direction piecemeal of front shroud and front wheel trim, the matching forms the second piecemeal line.
3. A vehicle front structure usable for pedestrian protection according to claim 2, characterized in that: the front cover comprises a front cover outer plate and a front cover inner plate, wherein the front cover outer plate is made of a six-series aluminum alloy material and has the thickness of 0.8-1.0mm; the front cover inner plate is made of a quintuple aluminum alloy material, the thickness of the front cover inner plate is 0.8-1.0mm, and the circumferential end part of the front cover outer plate is fixedly connected with the circumferential end part of the front cover inner plate by adopting a die buckling or rolling edge covering process.
4. A vehicle front structure usable for pedestrian protection according to claim 3, wherein: the fender mounting panel is provided with a buffer block supporting bracket which is vertically arranged, a front cover cushion pad is arranged on the buffer block supporting bracket, and the distance from the end part of the fender mounting panel far away from the buffer block supporting bracket to the outer surface of the front cover outer plate is 70-80mm.
5. The automobile front structure usable for pedestrian protection according to claim 4, characterized in that: one end of the fender mounting bracket is connected with the fender bolt, and the other end of the fender mounting bracket is welded with the fender mounting plate through spot welding; the one end of front wheel trim decoration installing support and the middle section bolted connection of front wheel trim decoration, the other end and the fender mounting panel of front wheel trim decoration installing support pass through spot welding.
6. A vehicle front structure usable for pedestrian protection according to claim 5, characterized in that: the side wall comprises a side wall A column lower inner plate, and a front cover hinge is arranged between the front cover and the side wall A column lower inner plate; the front cover hinge comprises a front cover male hinge, a hinge shaft pin and a front cover female hinge, the front cover male hinge is fixedly connected with the front cover inner plate, the front cover female hinge is fixedly connected with the side wall column A lower inner plate, and the front cover male hinge is rotatably connected with the front cover female hinge through the hinge shaft pin.
7. A vehicle front structure usable for pedestrian protection according to claim 6, characterized in that: the front cover male hinge is connected with the front cover inner plate through a bolt, and the front cover female hinge is connected with the side wall A column lower inner plate through a bolt.
8. A vehicle front structure usable for pedestrian protection according to claim 7, characterized in that: the front cover hinge reinforcing parts are fixedly connected to two sides of the rear end of the front cover inner plate, the front cover hinge reinforcing parts are connected with the front cover inner plate through a plurality of self-punching rivet assemblies, and a front cover male hinge is connected to the front cover hinge reinforcing parts through bolts; the front cover hinge reinforcing piece is made of galvanized steel sheets.
9. A vehicle front structure usable for pedestrian protection according to claim 8, characterized in that: a first front cover lock pin reinforcing piece and a second front cover lock pin reinforcing piece 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 reinforcing piece is fixedly connected with the front cover inner plate through a plurality of self-punching rivet components, a plurality of connecting pins are fixedly connected to the second front cover lock pin reinforcing piece in the circumferential direction, and each connecting pin is fixedly installed on the front cover inner plate through the self-punching rivet component; the second front cover lockpin reinforcement is arranged between the front cover outer plate and the first front cover lockpin reinforcement, a plurality of strip-shaped grooves are formed in one side, close to the front cover outer plate, of the second front cover lockpin reinforcement, strip-shaped glue is arranged in the grooves, and the second front cover lockpin reinforcement is bonded with the front cover outer plate through the strip-shaped glue.
10. A vehicle front structure usable for pedestrian protection according to claim 9, wherein: the first front cover lock pin reinforcing piece and the second front cover lock pin reinforcing piece are made of galvanized steel sheets.
11. A vehicle front structure usable for pedestrian protection according to claim 10, characterized in that: and a gap of 80-160mm is formed between one side of the first front cover lock pin reinforcing piece close to the front cover outer plate and the front cover outer plate.
12. A vehicle front structure usable for pedestrian protection according to claim 11, wherein: the front section of the front wheel trim decorating part is connected with the front bumper in a buckling mode, and the rear section of the front wheel trim decorating part is connected with the fender in a buckling mode; the middle section of the front wheel trim is provided with a front wheel trim reinforcing piece, one side of the front wheel trim reinforcing piece is fixedly connected with the front wheel trim, the opposite side and the front wheel trim installing support fixed connection of front wheel trim decoration reinforcement, the one end and the fender mounting panel fixed connection of front wheel trim decoration reinforcement are kept away from to front wheel trim decoration installing support.
13. A vehicle front structure usable for pedestrian protection according to claim 12, characterized in that: one side of the front wheel trim decorative part reinforcer is connected with the front wheel trim decorative part in a buckling way, the other side of the front wheel trim decorative part reinforcer is connected with the front wheel trim decorative part mounting bracket in a buckling way, front wheel trim decoration installing support keeps away from the one end and the fender mounting panel of front wheel trim decoration reinforcement and passes through spot welding.
14. 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 |
|---|---|---|---|
| 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 true CN115320723A (en) | 2022-11-11 |
| CN115320723B 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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116118876A (en) * | 2023-02-16 | 2023-05-16 | 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 |
| US20140059859A1 (en) * | 2012-08-31 | 2014-03-06 | GM Global Technology Operations LLC | Method of assembling a front end assembly of a vehicle |
| 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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2022
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
| US20140059859A1 (en) * | 2012-08-31 | 2014-03-06 | GM Global Technology Operations LLC | Method of assembling a front end assembly of a vehicle |
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116118876A (en) * | 2023-02-16 | 2023-05-16 | 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 |
| 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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| Publication number | Publication date |
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| CN115320723B (en) | 2023-08-25 |
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