CN113844545A - Automobile front end structure and vehicle - Google Patents
Automobile front end structure and vehicle Download PDFInfo
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- CN113844545A CN113844545A CN202110975023.4A CN202110975023A CN113844545A CN 113844545 A CN113844545 A CN 113844545A CN 202110975023 A CN202110975023 A CN 202110975023A CN 113844545 A CN113844545 A CN 113844545A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/15—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
- B62D21/152—Front or rear frames
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D27/00—Connections between superstructure or understructure sub-units
- B62D27/02—Connections between superstructure or understructure sub-units rigid
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Abstract
The invention discloses an automobile front end structure and a vehicle, which comprise a longitudinal beam front section assembly, wherein the longitudinal beam front section assembly is a main supporting structure of the vehicle, a longitudinal beam front section front part and a longitudinal beam front section rear part are arranged at the front end and the rear end of the longitudinal beam front section assembly, and the positions of the longitudinal beam front section front part and the longitudinal beam front section rear part are mutually symmetrical; the front side edge beam assembly comprises a left front side edge beam assembly, a right front side edge beam assembly, a front side edge beam rear section and a front side edge beam front section, wherein the left front side edge beam assembly and the right front side edge beam assembly are positioned at the top end of the longitudinal beam front section assembly, the outer surface of one end of the front side edge beam assembly is provided with the front side edge beam rear section and the front side edge beam front section, and one end of the front side edge beam front section is provided with a front connecting end. When frontal collision occurs, the collision contact area is increased, the compatibility is good, collision energy is effectively dispersed and transmitted and is absorbed by different structures through the upper path, the middle path and the lower path, overlarge deformation invasion amount is prevented, passengers in a driving car are protected to the maximum extent, and the casualties of the passengers are reduced or even avoided.
Description
Technical Field
The invention relates to the technical field of vehicle bodies, in particular to an automobile front end structure and a vehicle.
Background
Vehicle safety has become a critical characteristic requirement in current vehicle development at home and abroad. People pay more attention and attention to the test institutions, the foreign test institutions mainly comprise NCAP and IIHS, and the domestic test institutions comprise C-NCAP and C-IASI. And the version is updated every three years. Vehicle safety in the narrow sense consists of two parts, one part being a safety bag and a safety belt, and the other part being a vehicle body structure. Vehicle safety in a broad sense also includes electronic control systems such as ABS modules, ESP modules, and the like. The former is generally called passive safety, and after a traffic accident occurs, the former guarantees the last life line of passengers in the vehicle, and the safety effect of the safety airbag and the safety belt can be achieved only under the condition that the vehicle body structure is not seriously deformed.
Because the vehicle is arranged to make an optimal balance result by integrating various performances, when the modeling effect of the whole vehicle and the vehicle body arrangement strategy are required, the front suspension structure of the vehicle body may be required to be arranged to be compact and short, the front collision energy absorption space under the condition can be reduced, and a larger invasion amount can occur after the front collision, so that passengers are injured.
On the other hand, along with the improvement of safety awareness and demand of people, national vehicle safety standards or regulations are developed, namely, the version of the vehicle collision measurement standard in the previous paragraph is updated, and the requirements are increasingly strict, such as that the front 100% collision test speed is 50km/h and the front 40% offset collision speed is 56km/h according to 2009 edition C-NCAP; the 2012 version of C-NCAP specifies a front 100% crash test speed of 50km/h and a front 40% offset crash speed of 64 km/h.
Further, in a case where the collision contact area is large at a predetermined collision speed, the amount of intrusion of the collision into the opponent vehicle is smaller.
Therefore, how to guarantee the personal safety of the driver and the passengers to the maximum extent when the vehicle has a collision accident is a technical problem which is constantly addressed by vehicle installation personnel. There is a need to develop a new vehicle front end structure and vehicle.
Disclosure of Invention
The invention aims to provide an automobile front end structure and a vehicle, and aims to solve the problem of how to ensure the personal safety of a driver and passengers to the maximum extent when the vehicle has a collision accident in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an automobile front end structure and a vehicle, comprising:
the front part assembly of the longitudinal beam is a main supporting structure of a vehicle, a front part front component of the longitudinal beam and a rear part of the front part of the longitudinal beam are arranged at the front end and the rear end of the front part assembly of the longitudinal beam, and the front part front component of the longitudinal beam and the rear part of the front part of the longitudinal beam are symmetrical in position;
the left front side edge beam assembly and the right front side edge beam assembly are positioned at the top end of the longitudinal beam front section assembly, a front side edge beam rear section and a front side edge beam front section are arranged on the outer surface of one end of the front side edge beam assembly, and a front connecting end is arranged at one end of the front side edge beam front section;
the front anti-collision beam assembly is positioned at the front end of the longitudinal beam front section assembly, a front anti-collision beam, an energy absorption box and an outer anti-collision beam mounting plate are respectively arranged in the anti-collision beam assembly, the energy absorption box is positioned on the outer surface of one end of the outer anti-collision beam mounting plate, and the front anti-collision beam is positioned at the front end connecting part of the longitudinal beam front section assembly;
the front lower auxiliary anti-collision beam is positioned at the bottom end of the anti-collision beam assembly, the front end of the front lower auxiliary anti-collision beam is provided with the front auxiliary anti-collision beam, the top end of the front lower auxiliary anti-collision beam is connected with a front beam reinforcing plate, and the other end of the front beam reinforcing plate is connected with a front beam mounting plate;
the auxiliary frame extension beam assembly is positioned at the tail end of the front lower auxiliary anti-collision beam, and the outer surface of one end of the auxiliary frame extension beam assembly is mutually attached to the front beam mounting plate;
the front beam mounting bracket is positioned on the outer surface of one end of the auxiliary frame extension beam assembly, a reinforcing plate is arranged on the outer surface of one end of the front beam mounting bracket, and the reinforcing plate is of an L-shaped structure; the front section of the front side beam assembly bends downwards and extends forwards, and the anti-collision beam assembly, the front beam mounting bracket, the longitudinal beam front section assembly and the left front side beam assembly form a Y-shaped or fish-fork-shaped structure; the auxiliary frame left extension beam is connected with the front beam mounting bracket through a bolt; the front lower auxiliary anti-collision beam is connected to the auxiliary frame left extension beam through a bolt; the anti-collision beam assembly and the front lower auxiliary anti-collision beam are arranged up and down.
The front longitudinal beam assembly is formed by welding a front left front longitudinal beam section and an upper left front longitudinal beam cover plate, the front half part of the front longitudinal beam section front component is offset outwards relative to the rear half part, the cross section of the front end of the front longitudinal beam section front component is U-shaped, the vertical direction of the front auxiliary anti-collision beam is an L-shaped upper plane, and the L-shaped lower plane of the front auxiliary anti-collision beam is provided with a welding nut hole.
Adopt above-mentioned technical scheme, connect the welding through left longeron anterior segment, left front longeron upper cover plate and left front side roof beam assembly to the cooperation provides sub vehicle frame left side extension roof beam installation position, can increase the area of contact of vehicle frontal collision to a certain extent, thereby reduces the destruction to inner structure.
In a preferred aspect of the present invention, the longitudinal member front-section front member and the longitudinal member front-section rear member are disposed to face each other with respect to a center point of the front sub impact beam.
Adopt above-mentioned technical scheme, through this with longeron anterior segment front-end component and longeron anterior segment rear part component constitution longeron anterior segment assembly to the position about longeron anterior segment assembly divide into two parts and sets up at the vehicle front end, and the structure is the same, and the extrusion force that can be perfect produces the collision carries out the samming power, thereby improves the holistic intensity of longeron front end.
As a preferred technical scheme, the left front side beam assembly is formed by welding a front side beam rear section and a front side beam front section cover plate, and a hollow rectangular cavity structure is formed at the welding position of the left front side beam assembly.
Adopt above-mentioned technical scheme, left front side limit roof beam assembly passes through front side limit roof beam back end and front side limit roof beam front end interconnect to the link forms hollow rectangle cavity structure in the front, can provide fine accommodation space, avoids spacing each other between a plurality of structures, thereby is convenient for install and dismantle the anticollision structure, the subsequent maintenance work of being convenient for.
As a preferable technical scheme of the invention, the transverse and longitudinal surfaces of the left end of the longitudinal beam front section assembly are divided into two sections.
Adopt above-mentioned technical scheme, the horizontal longitudinal plane of left end through with longeron anterior segment assembly divide into two sections, and wherein the anterior segment cavity is little, and the back end cavity is big, makes back end structural strength be greater than anterior segment intensity, when meetting the striking, can play the effect of buffering, avoids the extrusion force to lead to longeron anterior segment assembly to receive the destruction of the same degree wholly.
As a preferred technical scheme of the invention, the front side beam assembly is distributed opposite to the vertical center line of the front lower auxiliary anti-collision beam with the rear section of the front side beam and the front section of the front side beam.
By adopting the technical scheme, the front side edge beam assembly which is distributed oppositely has the same structure with the rear section of the front side edge beam and the front section of the front side edge beam, the position heights are different, the force value is the same, and the force component can be carried out on other anti-collision structures, so that the overall stability is improved.
As a preferred technical scheme, the anti-collision beam assembly is formed by welding a front anti-collision beam, an energy absorption box and an outer anti-collision beam mounting plate, the front end part of the energy absorption box is coincided, aligned and connected with the rear surface of the front anti-collision beam, the rear end part of the energy absorption box is coincided, aligned and connected with the front section assembly of the longitudinal beam and the front section of the front side edge beam, and the outline shape of the energy absorption box can be adjusted in length along with the positions of the front anti-collision beam and the front side edge beam assembly.
Adopt above-mentioned technical scheme, crashproof roof beam, energy-absorbing box and outer crashproof roof beam mounting panel welding form the crashproof roof beam assembly to the one end along with preceding crashproof roof beam and preceding side roof beam assembly can slide along with the energy-absorbing box surface, thereby can be convenient for carry out length adjustment to preceding side roof beam assembly position, increase the holistic flexibility of preceding side roof beam assembly.
According to the preferred technical scheme, the front lower auxiliary anti-collision beam is formed by welding a front auxiliary anti-collision beam, a front beam reinforcing plate and a front beam mounting plate, the front lower auxiliary anti-collision beam is in threaded connection with an auxiliary frame extension beam assembly through bolts, the cross section of one end of the front lower auxiliary anti-collision beam is of a square structure, and the front beam reinforcing plate is a hollow part formed by welding an upper sheet metal part and a lower sheet metal part.
Adopt above-mentioned technical scheme, front beam reinforcing plate and front beam mounting panel are whole to strengthening vice crashproof roof beam down in the front to constitute between vice crashproof roof beam and the sub vehicle frame extension beam assembly down in the front and dismantle the structure, the sub vehicle frame extension beam assembly of being convenient for separates, thereby has still guaranteed the intensity of connecting the face when guaranteeing the flexibility between the messenger structure.
According to the preferable technical scheme, the cross sections of the left end and the right end of the auxiliary frame extension beam assembly are both of hollow rectangular structures, the front end of the auxiliary frame extension beam assembly is provided with a bolt through hole, the auxiliary frame extension beam assembly is mutually connected with the front beam mounting bracket through a bolt, and the rear part of the left end of the auxiliary frame extension beam assembly is provided with a welding nut.
By adopting the technical scheme, when the auxiliary frame extension beam assembly is connected with the front beam mounting bracket, the cross section of the auxiliary frame right extension beam can be not more than the cross section of the auxiliary frame left extension beam, and the auxiliary frame extension beam assembly is connected with the front beam mounting bracket and the front lower auxiliary anti-collision beam through the connecting structure, so that the connection can be flexibly carried out, the assembly efficiency of the front end structure of the automobile is improved, and the whole practicability is increased.
Compared with the prior art, the invention has the beneficial effects that: this car front end structure and vehicle:
1. when frontal collision occurs, due to the fact that the collision contact area is increased, compatibility is good, collision energy is effectively dispersed and transmitted and is absorbed by different structures through the upper path, the middle path and the lower path, too large deformation invasion amount is prevented, passengers in a driving vehicle are protected to the maximum extent, and the casualties of the passengers are reduced or even avoided.
2. When two vehicles collide, the energy generated by the two vehicles is dispersed by a plurality of force transmission paths in the collision process and is absorbed by different structures in a collapsing way, so that the two vehicles can protect the safety of a driver to the maximum extent in the collision process.
3. Connect the welding through left longeron anterior segment, left front longeron upper cover plate and left front side roof beam assembly to the cooperation provides the left extension beam installation position of sub vehicle frame, can increase vehicle frontal collision's area of contact to a certain extent, thereby reduces the destruction to inner structure.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
fig. 1 is a perspective view of a vehicle front end structure according to an embodiment of the present disclosure;
FIG. 2 is another angled perspective view of a vehicle front end structure according to an embodiment of the present disclosure;
FIG. 3 is an exploded perspective view of a vehicle front end structure according to an embodiment of the present disclosure;
FIG. 4 is a side view of a vehicle front end structure according to an embodiment of the present disclosure;
FIG. 5 is a front cross-sectional view of a front side sill assembly in a front end structure of a vehicle according to an embodiment of the present disclosure;
FIG. 6 is a cross-sectional view of a rear section of a front side sill assembly in a front end structure of a vehicle according to an embodiment of the present disclosure; (ii) a
Fig. 7 is a perspective partially enlarged view of a vehicle front end structure according to an embodiment of the present disclosure;
FIG. 8 is an enlarged partial perspective view of a front lower secondary impact beam assembly in the vehicle front end structure according to an embodiment of the present disclosure;
fig. 9 is a deformation effect diagram after a frontal collision is applied to the vehicle front end structure according to the embodiment of the present disclosure;
fig. 10 is a plan view of a front lower sub impact beam in the vehicle front end structure according to the embodiment of the present disclosure.
In the figure: 1. a longitudinal beam front section assembly; 11. a longitudinal beam front section front member; 12. a longitudinal beam front section rear member; 2. a front side sill assembly; 21. a front side sill front section; 21a, a front connecting end; 22. a front side edge beam rear section; 3. an impact beam assembly; 31. a front impact beam; 32. an energy absorption box; 33. an outer impact beam mounting plate; 4. front lower auxiliary anti-collision beams; 41. a front auxiliary anti-collision beam; 42. a front beam stiffener; 43. a front beam mounting plate; 5. an auxiliary frame extension beam assembly; 6. a front beam mounting bracket; 61. and (4) reinforcing the plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-10, the present invention provides a technical solution: an automobile front end structure and a vehicle, comprising:
the longitudinal beam front section assembly 1 is a main supporting structure of a vehicle, a longitudinal beam front section front part 11 and a longitudinal beam front section rear part 12 are arranged at the front end and the rear end of the longitudinal beam front section assembly 1, and the positions of the longitudinal beam front section front part 11 and the longitudinal beam front section rear part 12 are mutually symmetrical; the left and right front side edge beam assemblies 2 are positioned at the top ends of the longitudinal beam front section assemblies 1, the outer surface of one end of each front side edge beam assembly 2 is provided with a front side edge beam rear section 22 and a front side edge beam front section 21, and one end of each front side edge beam front section 21 is provided with a front connecting end 21 a; the anti-collision beam assembly 3 is positioned at the front end of the longitudinal beam front section assembly 1, a front anti-collision beam 31, an energy absorption box 32 and an outer anti-collision beam mounting plate 33 are respectively arranged in the anti-collision beam assembly 3, the energy absorption box 32 is positioned on the outer surface of one end of the outer anti-collision beam mounting plate 33, and the front anti-collision beam 31 is positioned at the front end connection part of the longitudinal beam front section assembly 1; the front lower auxiliary anti-collision beam 4 is positioned at the bottom end of the anti-collision beam assembly 3, the front end of the front lower auxiliary anti-collision beam 4 is provided with a front auxiliary anti-collision beam 41, the top end of the front lower auxiliary anti-collision beam 4 is connected with a front beam reinforcing plate 42, and the other end of the front beam reinforcing plate 42 is connected with a front beam mounting plate 43; the auxiliary frame extension beam assembly 5 is positioned at the tail end of the front lower auxiliary anti-collision beam 4, and the outer surface of one end of the auxiliary frame extension beam assembly 5 is mutually attached to the front beam mounting plate 43; the front beam mounting bracket 6 is positioned on the outer surface of one end of the auxiliary frame extension beam assembly 5, a reinforcing plate 61 is arranged on the outer surface of one end of the front beam mounting bracket 6, and the reinforcing plate 61 is of an L-shaped structure; the front section of the front side edge beam assembly 2 bends downwards and extends forwards, and the anti-collision beam assembly 3, the front beam mounting bracket 6, the longitudinal beam front section assembly 1 and the left front side edge beam assembly 2 form a Y-shaped or fish-fork-shaped structure; the left extension beam of the auxiliary frame is connected with the front beam mounting bracket 6 through a bolt; the front lower auxiliary anti-collision beam 4 is connected to the auxiliary frame left extension beam through a bolt; the anti-collision beam assembly 3 and the front lower auxiliary anti-collision beam 4 are arranged up and down.
The longitudinal beam front section assembly 1 is formed by welding a left front longitudinal beam front section and a left front longitudinal beam upper cover plate, the front half part of a longitudinal beam front section front part 11 is offset outwards relative to the rear half part, the cross section of the front end of the longitudinal beam front section front part 11 is U-shaped, the vertical direction of a front auxiliary anti-collision beam 41 is an L-shaped upper plane, and a welding nut hole is formed in the L-shaped lower plane of the front auxiliary anti-collision beam 41; connect the welding through left longeron anterior segment, left front longeron upper cover plate and left front side roof beam assembly to the cooperation provides the left extension beam installation position of sub vehicle frame, can increase vehicle frontal collision's area of contact to a certain extent, thereby reduces the destruction to inner structure.
The longitudinal beam front section front part 11 and the longitudinal beam front section rear part 12 are distributed oppositely about the central point of the front auxiliary collision-prevention beam 41; through this constitute longeron anterior segment assembly 1 with longeron anterior segment front-end part 11 and longeron anterior segment back part 12 to longeron anterior segment assembly 1 divide into two parts and sets up the position about the vehicle front end, and the structure is the same, and the extrusion force that can perfect produced the collision carries out the samming power, thereby improves the holistic intensity of longeron front end.
The left front side beam assembly 2 is formed by welding a front side beam rear section 22 and a front side beam front section 21 cover plate, and a hollow rectangular cavity structure is formed at the welding position of the left front side beam assembly 2; left front side roof beam assembly 2 is through front side roof beam back end 22 and front side roof beam anterior segment 21 interconnect to link 21a forms hollow rectangle cavity structure in the front, can provide fine accommodation space, avoids spacing each other between a plurality of structures, thereby is convenient for install and dismantle collision avoidance structure, the subsequent maintenance work of being convenient for.
The transverse and longitudinal surfaces of the left end of the longitudinal beam front section assembly 1 are divided into two sections; divide into two sections through the horizontal longitudinal plane of left end with longeron anterior segment assembly 1, wherein the anterior segment cavity is little, and the back end cavity is big, makes back end structural strength be greater than anterior segment intensity, when meetting the striking, can play the effect of buffering, avoids the extrusion force to lead to longeron anterior segment assembly 1 whole to receive the destruction of the same degree.
The front side edge beam assembly 2 is distributed opposite to the vertical central line of the front lower auxiliary anti-collision beam 4 with the front side edge beam rear section 22 and the front side edge beam front section 21; wherein the front side edge beam assembly 2 which is distributed oppositely has the same structure with the front side edge beam rear section 22 and the front side edge beam front section 21, the position heights are different, the force values are the same, and the force components can be carried out for other anti-collision structures, thereby improving the overall stability.
The anti-collision beam assembly 3 is formed by welding a front anti-collision beam 31, an energy absorption box 32 and an outer anti-collision beam mounting plate 33, the front end part of the energy absorption box 32 is coincided, aligned and connected with the rear surface of the front anti-collision beam 31, the rear end part of the energy absorption box 32 is coincided, aligned and connected with the longitudinal beam front section assembly 1 and the front side edge beam front section 21, and the outline shape of the energy absorption box 32 can be adjusted in length along with the assembly positions of the front anti-collision beam 31 and the front side edge beam assembly 2; crashproof roof beam 31, energy-absorbing box 32 and outer crashproof roof beam mounting panel 33 welding form crashproof roof beam assembly 3 to can slide along with crashproof roof beam 31 in the front and the one end of preceding side roof beam assembly 2 along with energy-absorbing box 32 surface, thereby can be convenient for carry out length adjustment to preceding side roof beam assembly 2 assembly position, increase the holistic flexibility of preceding side roof beam assembly 2 assembly.
The front lower auxiliary anti-collision beam 4 is formed by welding a front auxiliary anti-collision beam 41, a front beam reinforcing plate 42 and a front beam mounting plate 43, the front lower auxiliary anti-collision beam 4 is in threaded connection with the auxiliary frame extension beam assembly 5 through bolts, the cross section of one end of the front lower auxiliary anti-collision beam 4 is of a square structure, and the front beam reinforcing plate 42 is a hollow part formed by welding an upper sheet metal part and a lower sheet metal part; front beam reinforcing plate 42 and front beam mounting panel 43 strengthen preceding vice crashproof roof beam 4 whole down to constitute between preceding vice crashproof roof beam 4 and the sub vehicle frame extension beam assembly 5 and dismantle the structure, the sub vehicle frame extension beam assembly 5 of being convenient for separates, thereby has still guaranteed the intensity of connecting the face when guaranteeing the flexibility between the messenger structure.
The cross sections of the left end and the right end of the auxiliary frame extension beam assembly 5 are both in a hollow rectangular structure, a bolt through hole is formed in the front end of the auxiliary frame extension beam assembly 5, the auxiliary frame extension beam assembly 5 and the front beam mounting bracket 6 are connected with each other through a bolt, and a welding nut is arranged on the rear portion of the left end of the auxiliary frame extension beam assembly 5; when sub vehicle frame extension beam assembly 5 is connected with front-axle beam installing support 6, the cross section that the sub vehicle frame extended beam on the right side can be not more than the cross section that the sub vehicle frame extended beam on the left side extended beam to sub vehicle frame extension beam assembly 5 and front-axle beam installing support 6 all are equipped with connection structure between the vice crashproof roof beam 4 under with before with, can connect in a flexible way, improve the assembly efficiency to car front end structure.
The working principle is as follows: referring to fig. 1, 2 and 3, a front end structure of a vehicle includes a longitudinal beam front section assembly 1, a front side beam assembly 2, an impact beam assembly 3, a front lower auxiliary impact beam 4, an auxiliary frame extension beam assembly 5 and a front beam mounting bracket 6; the front side beam front section 21 of the front side beam assembly 2 bends downwards and extends forwards, and the foremost end part of the front side beam front section 21 is welded with the longitudinal beam front section assembly 1 through the front beam mounting bracket 6 to form an energy absorption and energy transmission path above the front collision; the front end part of the longitudinal beam front section assembly 1 is welded with an L-shaped reinforcing plate 61 of the front beam mounting bracket 6, and six welding nuts are designed on the reinforcing plate 61; twelve through holes are designed on an outer anti-collision beam mounting plate 33 of the anti-collision beam assembly 3, and the anti-collision beam assembly 3 is connected with the longitudinal beam front section assembly 1 through bolts to form a middle energy absorption and energy transmission path for frontal collision; the auxiliary frame extension beam assembly 5 is connected with the front beam mounting bracket 6 through bolts, and then the front lower auxiliary anti-collision beam 4 is connected to the auxiliary frame extension beam assembly 5 through eight bolts to form an energy absorption and energy transmission path below the frontal collision;
as shown in FIG. 2, the U-shaped longitudinal beam front section in the longitudinal beam front section assembly 1 is a laser welded plate, the material thickness of the longitudinal beam front section front part 11 is 2.0mm, and the material thickness of the longitudinal beam front section rear part 12 is 2.9 mm. The purpose is that the front part 11 of the longitudinal beam is earlier than the rear part 12 of the longitudinal beam in front collision, and the rear part 12 of the longitudinal beam mainly takes on the energy transfer function.
As shown in fig. 1, 4, 5, 6 and 9, the front side member front section 21 of the front side member assembly 2 is bent downward and extended forward, and its front connection end 21a is welded by the front member mounting bracket 6 and is designed to overlap with the energy absorption box 32, which is a component of the impact beam assembly 3, in the front, thereby ensuring efficient transmission of frontal impact energy. The cross section A-A at the front section 21 of the front side beam is small, and the cross section B-B at the rear section 22 of the front side beam is large, so that the energy is absorbed by the front section 21 of the front side beam and part of the energy can be transmitted to the rear through the rear section 22 of the front side beam in the frontal collision process.
As shown in fig. 1 and 7, the front impact beam assembly 3 is formed by welding a front impact beam 31, an energy absorption box 32 and an outer impact beam mounting plate 33, the energy absorption box 32, the outer impact beam mounting plate 33, the front beam mounting bracket 6, the longitudinal beam front section assembly 1 and the front side beam assembly 2 form an approximate fishfork structure, and the structure can transmit the impact force of the impact beam 31 to the longitudinal beam front section assembly 1 and the front side beam assembly 2 to form the two paths of impact energy transmission paths.
As shown in fig. 1, 2, 3, and 8, the front sub impact beam 4 is formed by welding a front sub impact beam 41, a front beam reinforcement plate 42, and a front beam attachment plate 43. The front beam reinforcing plate 42 is formed by welding an upper sheet metal part and a lower sheet metal part. The front lower auxiliary anti-collision beam 4 is connected with the auxiliary frame extension beam assembly 5 through four bolts; the auxiliary frame extension beam assembly 5 is connected with the front beam mounting bracket 6 through a bolt; the front lower auxiliary anti-collision beam is integrally molded along with the front protection outer molding trend and is made of square tube sections. The front lower auxiliary anti-collision beam 4, the front beam mounting bracket 6 and the auxiliary frame extension beam assembly 5 form a lower energy absorption and energy transmission path under the frontal collision.
As shown in fig. 9, a screen showing the effect of the vehicle front end structure of the present embodiment on the deformation resistance after a collision occurs is shown.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. An automobile front end structure and a vehicle, characterized by comprising:
the longitudinal beam front section assembly (1) is a main supporting structure of a vehicle, a longitudinal beam front section front part (11) and a longitudinal beam front section rear part (12) are arranged at the front end and the rear end of the longitudinal beam front section assembly (1), and the longitudinal beam front section part (11) and the longitudinal beam front section rear part (12) are symmetrical in position;
the left front side edge beam assembly (2) and the right front side edge beam assembly (2) are positioned at the top end of the longitudinal beam front section assembly (1), a front side edge beam rear section (22) and a front side edge beam front section (21) are arranged on the outer surface of one end of the front side edge beam assembly (2), and a front connecting end (21 a) is arranged at one end of the front side edge beam front section (21);
the anti-collision beam assembly (3) is positioned at the front end of the longitudinal beam front section assembly (1), a front anti-collision beam (31), an energy absorption box (32) and an outer anti-collision beam mounting plate (33) are respectively arranged in the anti-collision beam assembly (3), the energy absorption box (32) is positioned on the outer surface of one end of the outer anti-collision beam mounting plate (33), and the front anti-collision beam (31) is positioned at the front end connection part of the longitudinal beam front section assembly (1);
the front lower auxiliary anti-collision beam (4) is positioned at the bottom end of the anti-collision beam assembly (3), a front auxiliary anti-collision beam (41) is arranged at the front end of the front lower auxiliary anti-collision beam (4), a front beam reinforcing plate (42) is connected to the top end of the front lower auxiliary anti-collision beam (4), and a front beam mounting plate (43) is connected to the other end of the front beam reinforcing plate (42);
the auxiliary frame extension beam assembly (5) is positioned at the tail end of the front lower auxiliary anti-collision beam (4), and the outer surface of one end of the auxiliary frame extension beam assembly (5) is mutually attached to the front beam mounting plate (43);
the auxiliary frame comprises a front beam mounting bracket (6) and a front beam, wherein the front beam mounting bracket (6) is positioned on the outer surface of one end of the auxiliary frame extension beam assembly (5), a reinforcing plate (61) is arranged on the outer surface of one end of the front beam mounting bracket (6), and the reinforcing plate (61) is of an L-shaped structure; the front section of the front side edge beam assembly (2) bends downwards and extends forwards, and the anti-collision beam assembly (3), the front beam mounting bracket (6), the longitudinal beam front section assembly (1) and the left front side edge beam assembly (2) form a Y-shaped or harpoon-shaped structure; the auxiliary frame left extension beam is connected with the front beam mounting bracket (6) through a bolt; the front lower auxiliary anti-collision beam (4) is connected to the auxiliary frame left extension beam through a bolt; the anti-collision beam assembly (3) and the front lower auxiliary anti-collision beam (4) are arranged up and down.
2. The front end structure of an automobile and the automobile as claimed in claim 1, wherein: the longitudinal beam front section assembly (1) is formed by welding a left front longitudinal beam front section and a left front longitudinal beam upper cover plate, the front half part of a longitudinal beam front section front component (11) is offset outwards relative to the rear half part, the cross section of the front end of the longitudinal beam front section front component (11) is U-shaped, the vertical direction of a front auxiliary anti-collision beam (41) is an L-shaped upper plane, and a welding nut hole is formed in the L-shaped lower plane of the front auxiliary anti-collision beam (41).
3. The front end structure of an automobile and the automobile as claimed in claim 1, wherein: the longitudinal beam front section front component (11) and the longitudinal beam front section rear component (12) are distributed oppositely relative to the center point of the front auxiliary anti-collision beam (41).
4. The front end structure of an automobile and the automobile as claimed in claim 1, wherein: left side front side roof beam assembly (2) are formed by front side roof beam back end (22) and front side roof beam anterior segment (21) apron welding, left side front side roof beam assembly (2) welding department forms hollow rectangle cavity structure.
5. The front end structure of an automobile and the automobile as claimed in claim 1, wherein: the transverse and longitudinal surfaces of the left end of the longitudinal beam front section assembly (1) are divided into two sections.
6. The front end structure of an automobile and the automobile as claimed in claim 1, wherein: the front side edge beam assembly (2) is distributed oppositely to the vertical center line of the front side edge beam rear section (22) and the front side edge beam front section (21) of the front lower auxiliary anti-collision beam (4).
7. The front end structure of an automobile and the automobile as claimed in claim 1, wherein: the anti-collision beam assembly (3) is formed by welding a front anti-collision beam (31), an energy absorption box (32) and an outer anti-collision beam mounting plate (33), the front end part of the energy absorption box (32) is coincided with the rear surface of the front anti-collision beam (31) and is connected with the front surface of the front anti-collision beam in an aligned mode, the rear end part of the energy absorption box (32) is coincided with the front section assembly (1) of the longitudinal beam and the front side beam front section (21) and is connected with the longitudinal beam front section assembly in an aligned mode, and the outline shape of the energy absorption box (32) can be adjusted in length along with the assembly positions of the front anti-collision beam (31) and the front side beam assembly (2).
8. The front end structure of an automobile and the automobile as claimed in claim 1, wherein: preceding vice crashproof roof beam (4) down is formed by welding of preceding vice crashproof roof beam (41) and front-axle beam reinforcing plate (42) and front-axle beam mounting panel (43), preceding vice crashproof roof beam (4) down is through bolt and sub vehicle frame extension beam assembly (5) threaded connection, preceding vice crashproof roof beam (4) one end is transversal personally submits a square column structure down, the cavity that front-axle beam reinforcing plate (42) formed by two upper and lower sheet metal component welding.
9. The front end structure of an automobile and the automobile as claimed in claim 1, wherein: both ends cross section all is cavity rectangle structure about sub vehicle frame extension beam assembly (5), sub vehicle frame extension beam assembly (5) front end is provided with the bolt via hole, and sub vehicle frame extension beam assembly (5) passes through bolt interconnect with front-axle beam installing support (6), sub vehicle frame extension beam assembly (5) left end rear portion is provided with weld nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110975023.4A CN113844545A (en) | 2021-08-24 | 2021-08-24 | Automobile front end structure and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110975023.4A CN113844545A (en) | 2021-08-24 | 2021-08-24 | Automobile front end structure and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113844545A true CN113844545A (en) | 2021-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110975023.4A Pending CN113844545A (en) | 2021-08-24 | 2021-08-24 | Automobile front end structure and vehicle |
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| Country | Link |
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| CN (1) | CN113844545A (en) |
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Application publication date: 20211228 |