CN112722084B

CN112722084B - Automobile front cabin structure and vehicle

Info

Publication number: CN112722084B
Application number: CN202110114278.1A
Authority: CN
Inventors: 石登仁; 李云; 林伟雄; 陈钊; 支希凡; 欧阳晨晖; 廖礼平; 潘晖
Original assignee: Dongfeng Liuzhou Motor Co Ltd
Current assignee: Dongfeng Liuzhou Motor Co Ltd
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2022-04-29
Anticipated expiration: 2041-01-27
Also published as: CN112722084A

Abstract

The invention provides an automobile front cabin structure and an automobile, which comprise a front coaming assembly and two longitudinal beams, wherein the front coaming assembly comprises a front coaming and a front coaming reinforcement piece arranged on the front side of the front coaming; the two longitudinal beams are distributed at intervals in the transverse direction, and the rear end of each longitudinal beam is connected with the front side of the reinforcement body. The automobile front cabin structure and the automobile provided by the invention have the advantages that the engine is prevented from invading the passenger cabin when frontal collision occurs, the integrity of the passenger cabin is improved, and the safety of passengers in the automobile is ensured.

Description

Automobile front cabin structure and vehicle

Technical Field

The invention relates to the technical field of automobile bodies, in particular to an automobile front cabin structure and an automobile.

Background

With the development of economy, the living standard of people is continuously improved, private cars enter into families more and more, but with the increase of vehicles, the occurrence amount of traffic accidents is also increased at a very high speed. In traffic accidents, vehicle damage is caused slightly, and casualties are caused seriously. Although most automobiles are equipped with safety belts and airbags, and the safety of the passengers in the automobiles is ensured as much as possible by the restraint of the safety belts and the buffering of the airbags, even if the safety protection measures are provided, the passengers still injure and die in the case of violent collision of the automobiles, so that the safety performance of the automobiles needs to be enhanced and the personal safety of the passengers in the automobiles needs to be ensured as much as possible.

Automobile crash safety is one of the most important performances of automobiles, and most of automobile accidents and casualties are caused by frontal collisions. In the case of a frontal collision, the automobile engine is crushed to deform and then move backward, and the automobile engine collides with the dash panel and then invades into the passenger compartment, thereby seriously threatening the safety of passengers in the automobile.

Disclosure of Invention

The invention mainly aims to provide an automobile front cabin structure and an automobile, and aims to solve the technical problem that when the existing automobile is in a frontal collision, an engine is extruded to deform and then moves backwards, and then the engine collides with a front wall plate and invades into a passenger cabin, so that the safety of passengers in the automobile is seriously threatened.

To achieve the above object, the present invention provides an automobile front hatch structure, comprising:

the front wall plate assembly comprises a front wall plate and a front wall plate reinforcing piece arranged on the front side of the front wall plate, the front wall plate reinforcing piece comprises a reinforcing piece body and an extending part bent backwards from the periphery of the reinforcing piece body, and one end, far away from the reinforcing piece body, of the extending part is connected with the front wall plate so as to form a cavity between the front side of the front wall plate and the front wall plate reinforcing piece; and the number of the first and second groups,

the two longitudinal beams are distributed at intervals in the transverse direction, and the rear end of each longitudinal beam is connected with the front side of the reinforcement body.

Optionally, one end of the extending portion, which is far away from the reinforcement body, extends to the outside of the cavity to be provided with a connecting portion, and the connecting portion is connected with the dash panel.

Optionally, the vehicle front cabin structure further comprises a center channel assembly, the center channel assembly is arranged at the rear side of the front wall plate, and one end of the center channel assembly is connected to the front wall plate;

the front wall plate reinforcing pieces extend transversely, the rear ends of the longitudinal beams are connected with the two ends of the front wall plate reinforcing pieces in the transverse direction respectively, and the middle of each front wall plate reinforcing piece and the central channel assembly are arranged in a front-to-back corresponding mode.

Optionally, the center tunnel assembly includes a center tunnel body extending in a front-rear direction, and the connecting portion, the dash panel and a front end of the center tunnel body are sequentially stacked in the front-rear direction.

Optionally, the central channel assembly further includes a central channel reinforcing plate, the central channel reinforcing plate is disposed on the upper side of the central channel body, the rear end of the central channel reinforcing plate is connected to the central channel body, a first flange bent upward is disposed at the front end of the central channel reinforcing plate, and the connecting portion, the front wall plate and the first flange are sequentially stacked in the front-back direction.

Optionally, the connecting portion includes an upper connecting portion located on the upper side of the reinforcement body and a lower connecting portion located on the lower side of the reinforcement body, the upper connecting portion, the front panel and the first flange are sequentially stacked in the front-rear direction, and the lower connecting portion, the front panel and the front end of the center channel body are sequentially stacked in the front-rear direction.

Optionally, the front end of the central passage body is bent upward, and an included angle between the bending direction and the front-back direction is greater than or equal to 25 degrees and less than or equal to 55 degrees.

Optionally, the automobile front cabin structure further includes a front floor assembly, the front floor assembly includes a front floor and a seat cross member transversely disposed on the front floor, the front floor is disposed on the rear side of the front wall, and the front end of the front floor is connected to the front wall.

Optionally, the front floor assembly further includes two longitudinal beam reinforcing plates, a second flanging bent upward is disposed at a rear end of each longitudinal beam reinforcing plate, the second flanging is connected to the seat cross beam, and a front end of the front floor, a front end of each longitudinal beam reinforcing plate, and a rear end of each longitudinal beam are sequentially stacked in an up-down direction.

In addition, the invention also provides a vehicle which comprises the automobile front cabin structure.

The invention provides an automobile front cabin structure which comprises a front wall plate assembly and two longitudinal beams, wherein the front wall plate assembly comprises a front wall plate and a front wall plate reinforcing piece arranged on the front side of the front wall plate, the front wall plate reinforcing piece comprises a reinforcing piece body and an extending part bent backwards from the periphery of the reinforcing piece body, and one end, far away from the reinforcing piece body, of the extending part is connected with the front wall plate so as to form a cavity between the front side of the front wall plate and the front wall plate reinforcing piece; the two longitudinal beams are distributed at intervals in the transverse direction, and the rear end of each longitudinal beam is connected with the front side of the reinforcement body. In the scheme, when the front collision occurs to the vehicle, the engine is extruded to deform and move backwards to collide the front wall panel reinforcing piece, and a cavity is formed between the front side of the front wall panel and the front wall panel reinforcing piece, so that the collision can be buffered; meanwhile, the arrangement of the front wall panel reinforcement is equivalent to a reinforcing rib, so that the rigidity and the strength of the front wall panel can be improved; in addition, a part of load during frontal collision can be transmitted to the rear part of the vehicle body through the longitudinal beams so as to weaken the backward collision force of the engine, thereby avoiding the engine from invading the passenger compartment during the frontal collision, achieving the effect of improving the integrity of the passenger compartment and ensuring the safety of passengers in the vehicle.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic perspective view of an embodiment of a front cabin structure of an automobile according to the present invention;

FIG. 2 is a side view of the front deck structure of the vehicle of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a schematic perspective view of the central passage body and the central passage reinforcing plate shown in FIG. 1;

FIG. 5 is a top plan view of the front deck structure of the vehicle of FIG. 1;

fig. 6 is a schematic perspective view of the front cabin structure of the vehicle shown in fig. 1 at another angle.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

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.

It should be noted that, if directional indication is involved in the embodiment of the present invention, the directional indication is only used for explaining the relative positional relationship, the motion situation, and the like between the components in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Automobile crash safety is one of the most important performances of automobiles, and most of automobile accidents and casualties are caused by frontal collisions. In the case of a frontal collision, the automobile engine is crushed and deformed, and then moves backward to collide with the dash panel and invade into the passenger compartment, which seriously threatens the safety of passengers in the automobile. The integrity of the passenger compartment is particularly important for occupant protection in the event of a frontal collision.

The invention provides an automobile front cabin structure and an automobile, and aims to solve the problem that an existing automobile is extruded and deformed during a frontal collision, then moves backwards and collides with a front panel to enter a passenger cabin, and the safety of passengers in the automobile is seriously threatened. Fig. 1 to 6 show an embodiment of a front cabin structure of an automobile and an automobile according to the present invention.

Referring to fig. 1 to 3, the front cabin structure 100 of the automobile provided in the embodiment includes a front wall assembly 1 and two longitudinal beams 2, the front wall assembly 1 includes a front wall 11 and a front wall reinforcement 12 disposed at a front side of the front wall 11, the front wall reinforcement 12 includes a reinforcement body 121 and an extension portion 122 bent backward from an outer periphery of the reinforcement body 121, an end of the extension portion 122 away from the reinforcement body 121 is connected to the front wall 11 to form a cavity between a front side of the front wall 11 and the front wall reinforcement 12; and the two longitudinal beams 2 are distributed at intervals in the transverse direction, and the rear end of each longitudinal beam 2 is respectively connected with the front side of the reinforcement body 121. It is understood that the connection form of the reinforcement body 121 and the extension portion 122 is not limited, the extension portion 122 may be welded to the reinforcement body 121, or may be in other forms, and in this embodiment, the reinforcement body 121 and the extension portion 122 are integrally formed to improve the strength. In the scheme, when the front collision occurs to the vehicle, the engine is extruded and deformed to move backwards to collide the front wall panel reinforcing piece 12, and a cavity is formed between the front side of the front wall panel 11 and the front wall panel reinforcing piece 12, so that the impact of the engine can be buffered; meanwhile, the arrangement of the front panel reinforcement 12 itself also serves as a reinforcing rib, so that the rigidity and strength of the front panel 11 can be improved; in addition, a part of load during frontal collision can be transmitted to the rear part of the vehicle body through the longitudinal beams 2 so as to weaken the backward collision force of the engine, thereby avoiding the engine from invading the passenger compartment during the frontal collision, achieving the effect of improving the integrity of the passenger compartment and ensuring the safety of passengers in the vehicle. The forward-backward direction refers to a relative forward-backward direction of each component in a normal running state of the vehicle on the road, and the lateral direction refers to a direction perpendicular to the forward-backward direction in a horizontal plane, and when the specific posture is changed, the directional indication is changed accordingly.

Further, referring to fig. 2 and fig. 3, in order to improve the connection strength between the dash panel reinforcement 12 and the dash panel 11, a connecting portion 123 is extended from one end of the extending portion 122 away from the reinforcement body 121 to the outside of the cavity, and the connecting portion 123 is connected to the dash panel 11. The form of the connecting portion 123 is not limited as long as it can be connected to the dash panel 11 to improve the connection strength between the dash panel reinforcement 12 and the dash panel 11, and may be a flange formed by bending a part of one end of the extending portion 122 away from the reinforcement body 12 to the outside of the cavity, or may be another form. In this embodiment, the connecting portion 123 is a flange formed by bending the whole of one end of the extending portion 122 away from the reinforcement body 121 to the outside of the cavity, so as to increase the contact area between the dash panel reinforcement 12 and the dash panel 11, thereby achieving the effect of load distribution. In addition, the connection form of the flange and the extension portion 122 is not limited, and the flange and the extension portion 122 may be connected by spot welding or in other forms, and in this embodiment, the flange and the extension portion 122 are integrally formed.

Further, the direction of the front wall panel reinforcement 12 is not limited, and may be disposed to extend in the up-down direction, or may be in other forms, in this embodiment, referring to fig. 1 and 4, the front cabin structure 100 further includes a central channel assembly 3, the central channel assembly 3 is disposed at the rear side of the front wall panel 11, and one end of the central channel assembly is connected to the front wall panel 11; the front wall panel reinforcement 12 extends in the transverse direction, the rear end of each longitudinal beam 2 is connected to the two ends of the front wall panel reinforcement 12 in the transverse direction, and the middle of the front wall panel reinforcement 12 and the center channel assembly 3 are arranged in a manner of corresponding to each other in the front-rear direction. So set up, when the striking takes place, the engine moves the striking backward the cowl reinforcement 12, because cowl reinforcement 12 sets up along horizontal extension, increase and engine area of contact, improves shock-absorbing capacity, simultaneously because the middle part of cowl reinforcement 12 with central channel assembly 3 is corresponding the setting in the front to back, central channel assembly 3 is right cowl reinforcement 12 plays the supporting role, improves anti striking ability. Further, the rear ends of the side members 2 are connected to both ends of the dash reinforcement 12 in the lateral direction, respectively, to attenuate the load transmitted through the side members 2 toward the rear of the vehicle body by the cavity structure.

Specifically, in order to improve the supporting capability of the center tunnel assembly 3 for the dash panel reinforcement 12, the center tunnel assembly 3 includes a center tunnel body 31 extending in the front-rear direction, and the connecting portion 123, the dash panel 11, and the front end of the center tunnel body 31 are sequentially stacked in the front-rear direction. On one hand, the connecting portion 123 and the center tunnel body 31 are correspondingly arranged in the front-rear direction, so that the corresponding area of the dash panel reinforcement 12 and the center tunnel assembly 3 during load transmission is increased, and load is dispersed conveniently, and on the other hand, the connecting portion 123, the dash panel 11 and the front end of the center tunnel body 31 are sequentially stacked in the front-rear direction, so that a three-layer thin-plate structure is formed, and the strength and the rigidity are improved.

Specifically, in order to further improve the supporting capability of the center tunnel assembly 3 for the dash panel reinforcement 12, please refer to fig. 4, the center tunnel assembly 3 further includes a center tunnel reinforcement plate 32, the center tunnel reinforcement plate 32 is disposed on the upper side of the center tunnel body 31, the rear end of the center tunnel reinforcement plate 32 is connected to the center tunnel body 31, the front end of the center tunnel reinforcement plate 32 is provided with a first flange 321 which is bent upward, and the connecting portion 123, the dash panel 11 and the first flange 321 are sequentially stacked in the front-rear direction. With this arrangement, in the event of a frontal collision, a part of the load of the engine striking the cowl reinforcement 12 can be transmitted to the rear of the vehicle body through the center tunnel reinforcement panel 32, and the striking force at the front end of the center tunnel body 31 can be reduced; meanwhile, the connecting portion 123, the dash panel 11 and the first flange 321 are sequentially stacked in the front-rear direction, so that a three-layer thin-plate structure is formed, and the strength and rigidity of the automobile front cabin structure 100 are improved.

Specifically, referring to fig. 3, the connecting portion 123 includes an upper connecting portion 123a located on the upper side of the reinforcement body 121 and a lower connecting portion 123b located on the lower side of the reinforcement body 121, the upper connecting portion 123a, the dash panel 11 and the first flange 321 are sequentially stacked in the front-rear direction, and the lower connecting portion 123b, the dash panel 11 and the front end of the center tunnel body 31 are sequentially stacked in the front-rear direction. On one hand, the dash panel reinforcement 12 is respectively arranged corresponding to the first flange 321 and the front end of the center tunnel body 31 through the upper connecting part 123a and the lower connecting part 123b, so that the supporting capacity of the center tunnel assembly 3 on the dash panel reinforcement 12 is further improved; on the other hand, the front end of the central channel reinforcing plate 32 and the front end of the central channel body 31 are distributed at intervals in the vertical direction, so that the central channel reinforcing plate 32 and the central channel body 31 are separated from each other to form a triangular structure, and the effect of increasing the strength and the rigidity is achieved.

Further, generally, in order to avoid an exhaust pipe at the rear end of the engine, the front end of the center tunnel body 31 is generally bent upward, and when an included angle between the direction in which the front end of the center tunnel body 31 is bent upward and the front-rear direction is too large, the front dash reinforcement 11 cannot be supported well; when the included angle is too small, the exhaust pipe at the rear end of the engine cannot be well avoided. When the included angle between the bending direction and the front-back direction is greater than or equal to 25 degrees and less than or equal to 55 degrees, the front end of the center tunnel body 31 can well support the front panel reinforcement 12 and can conveniently avoid the exhaust pipe at the rear end of the engine, and the included angle is 40 degrees in the embodiment.

Further, the automobile front cabin structure 100 further includes a front floor assembly 4, the front floor assembly 4 includes a front floor 41 and a seat cross member 42 transversely disposed on the front floor 41, the front floor 41 is disposed on the rear side of the front dash panel 11, and the front end of the front floor 41 is connected to the front dash panel 11. In the event of a collision, a part of the load can be transmitted directly through the dash panel 11 to the rear of the vehicle body via the front floor 41; in addition, the seat cross member 42 may also serve to reinforce the strength of the front floor. It should be noted that the number of the seat beams 42 is not limited, one seat beam 42 may be transversely extended from the front floor 41, and two ends of the seat beam 42 are respectively connected to two ends of the front floor 41 in the transverse direction, or may be in other forms, in this embodiment, please refer to fig. 5, two seat beams 42 are transversely provided.

Specifically, referring to fig. 5 and 6, the front floor assembly 4 further includes two longitudinal beam reinforcing plates 43, a second flange bent upward is disposed at a rear end of each longitudinal beam reinforcing plate 43, the second flange is connected to the seat cross member 42, and a front end of the front floor 41, a front end of each longitudinal beam reinforcing plate 12, and a rear end of each longitudinal beam 2 are sequentially stacked in an up-down direction. Each of the side members 2 is connected to the seat cross member 42 through the side member reinforcing plate 43, so that the effect of transmitting load to the seat cross member 42 through the side member reinforcing plate 43 is achieved, and the strength of the front floor 41 is enhanced by the side member reinforcing plate 43; the front end of the front floor board 41, the front end of each longitudinal beam reinforcing plate 43 and the rear end of each longitudinal beam 2 are sequentially overlapped in the vertical direction to form a three-layer thin plate structure, so that the connection strength and the rigidity are improved.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. An automotive front hatch structure, characterized by comprising:

the two longitudinal beams are distributed at intervals in the transverse direction, and the rear end of each longitudinal beam is connected with the front side of the reinforcement body;

one end of the extending part, which is far away from the reinforcement body, extends to the outer side of the cavity to form a connecting part, and the connecting part is connected with the front coaming;

the automobile front cabin structure further comprises a central channel assembly, the central channel assembly is arranged on the rear side of the front wall plate, and one end of the central channel assembly is connected to the front wall plate;

the front wall plate reinforcing pieces extend along the transverse direction, the rear ends of the longitudinal beams are respectively connected with the two ends of the front wall plate reinforcing pieces in the transverse direction, and the middle parts of the front wall plate reinforcing pieces and the central channel assembly are arranged in a corresponding mode in the front-rear direction;

the central channel assembly comprises a central channel body which extends in the front-back direction, and the front ends of the connecting part, the front coaming and the central channel body are sequentially overlapped in the front-back direction;

the central channel assembly further comprises a central channel reinforcing plate, the central channel reinforcing plate is arranged on the upper side of the central channel body, the rear end of the central channel reinforcing plate is connected with the central channel body, a first flanging which is bent upwards is arranged at the front end of the central channel reinforcing plate, and the connecting part, the front wall plate and the first flanging are sequentially overlapped in the front-back direction;

the connecting portion are including being located the last connecting portion of reinforcement body upside and being located the lower connecting portion of reinforcement body downside, go up connecting portion preceding bounding wall and first turn-ups are folded in proper order to the front back and are established, lower connecting portion preceding bounding wall and the front end of central channel body is folded in proper order to the front back and is established.

2. The vehicle front cabin structure according to claim 1, wherein the front end of the center tunnel body is bent upward, and an included angle between a bending direction and a front-back direction is greater than or equal to 25 degrees and less than or equal to 55 degrees.

3. The vehicle front hatch structure according to claim 2, characterized in that the bending direction of the front end of the center tunnel body makes an angle of 40 degrees with the front-rear direction.

4. The vehicle front cabin structure according to claim 1, further comprising a front floor assembly including a front floor and a seat cross member transversely disposed on the front floor, wherein the front floor is disposed on a rear side of the dash panel, and a front end of the front floor is connected to the dash panel.

5. The vehicle front cabin structure according to claim 4, wherein the front floor assembly further comprises two longitudinal beam reinforcing plates, a second flange bent upward is provided at a rear end of each longitudinal beam reinforcing plate, the second flange is connected to the seat cross member, and a front end of the front floor, a front end of each longitudinal beam reinforcing plate, and a rear end of each longitudinal beam are sequentially stacked in an up-down direction.

6. A vehicle characterized by comprising the automotive front hatch structure according to any one of claims 1 to 5.