CN217672840U - Vehicle body collision structure - Google Patents

Abstract

The utility model belongs to the technical field of the car, specific automobile body collision structure that says so. The system comprises a front anti-collision beam system, a front longitudinal beam system, a lower probe beam system, a top beam system and an inclined strut beam system; the front end of the front longitudinal beam system is fixedly connected with the rear end of the front anti-collision beam system; the front end of the lower exploring beam system is fixed at the rear end of the front longitudinal beam system; the lower end of the inclined strut beam system is fixedly connected with the lower exploring beam system; the upper end of the inclined strut beam system is fixedly connected with the top beam system. The utility model discloses, when the head-on collision, the energy that produces when colliding is transferred step by step, is absorbed and is decomposed, and the impact transmission efficiency is high, can realize that the energy is inhaled completely to play collision guard action.

Description

Vehicle body collision structure

Technical Field

The utility model belongs to the technical field of the car, specific automobile body collision structure that says so.

Background

In recent years, with the continuous progress of society and the continuous improvement of the living standard of residents, private cars have become the most important transportation means of people. While the quantity of automobiles kept in China is gradually increased, the traffic jam quantity is also increased year by year, and the safety problem caused by traffic safety, particularly collision accidents, becomes a key problem of social attention. The collision safety performance of passenger cars is an important performance index in the development process of cars, and is gradually one of the focus of consumer car attention and the main selling points of various large-brand cars. In the C-NACP regulation 2021 edition, the evaluation standard of the MPDB test is also more strict, and in occupant protection, the vehicle body structure needs to protect passengers as necessary and also to balance the attack performance of the opponent vehicle, and how to balance both the occupant protection and the attack performance is a major issue of development and attention of each large vehicle company in recent years and a trend toward the development of a subsequent vehicle body structure.

The existing design of a vehicle body transmission path is mostly realized by adopting a front anti-collision Liang Jiaqian longitudinal beam structure. The structure realizes the absorption of collision energy through the gradual crushing of the front anti-collision beam, the energy absorption boxes and the front longitudinal beam, and weakens and transmits the collision force to the threshold and the torsion box area. Although the structure can realize the collision transmission and absorption through the structure optimization, the balance of the passenger protection and the attack performance is difficult to realize for the MPDB working condition in new regulations, thereby obtaining five-star evaluation. The force transmission path of the structure is single, and the energy multi-path dispersion cannot be realized. Especially for the MPV type vehicle with a short front overhang size, the structure of the front longitudinal beam is difficult to optimize in a limited space, the complete absorption of energy is realized, the longitudinal beam cannot be sufficiently crushed due to short length, and the transmission efficiency of collision force is not high.

Disclosure of Invention

The utility model provides a simple structure's automobile body collision structure, when frontal collision, the energy that produces when will colliding is forwarded step by step, is absorbed and is decomposed, and the impact transmission efficiency is high, can realize that the energy is inhaled completely to play the collision guard action, solved the above-mentioned problem that current automobile body collision structure exists.

The technical scheme of the utility model is explained as follows with the attached drawings:

a vehicle body collision structure comprises a front anti-collision beam system, a front longitudinal beam system, a lower probe beam system, a top beam system and an inclined strut beam system; the front end of the front longitudinal beam system is fixedly connected with the rear end of the front anti-collision beam system; the front end of the lower exploring beam system is fixed at the rear end of the front longitudinal beam system; the lower end of the inclined strut beam system is fixedly connected with the lower exploring beam system; the upper end of the inclined strut beam system is fixedly connected with the top beam system.

Further, the front anti-collision beam system comprises a front anti-collision beam 1, a left energy absorption box 2, a right energy absorption box 3, a left energy absorption box end plate 4 and a right energy absorption box end plate 5; two ends of the front anti-collision beam 1 are fixedly connected with the front ends of the left energy absorption box 2 and the right energy absorption box 3; the rear ends of the left energy-absorbing box 2 and the right energy-absorbing box 3 are respectively and fixedly connected with the front ends of the left energy-absorbing box end plate 4 and the right energy-absorbing box end plate 5.

Further, the front anti-collision beam 1 adopts an aluminum profile stretch bending form and is in a cross section shaped like a Chinese character ri; the left energy absorption box 2 and the right energy absorption box 3 are both made of aluminum profiles with sections shaped like Chinese character ri, and the front ends of the aluminum profiles are connected with the front anti-collision beam 1 through a C-shaped opening; the left energy-absorbing box end plate 4 and the right energy-absorbing box end plate 5 are made of aluminum plates.

Further, the front longitudinal beam system comprises a left front longitudinal beam end plate 6, a left front longitudinal beam inner plate 10, a left front longitudinal beam outer plate 8, a right front longitudinal beam end plate 7, a right front longitudinal beam inner plate 11 and a right front longitudinal beam outer plate 9; the front end of the left front longitudinal beam end plate 6 is fixedly connected with the rear end of the left energy absorption box end plate 4; the front end of the right front longitudinal beam end plate 7 is fixedly connected with the rear end of the right energy absorption box end plate 5; the left front longitudinal beam inner plate 10 and the left front longitudinal beam outer plate 8 are fixed at the rear end of the left front longitudinal beam end plate 6; the outer side of the left front longitudinal beam inner plate 10 is fixedly connected with the inner side of the left front longitudinal beam outer plate 8; the right front longitudinal beam inner plate 11 and the right front longitudinal beam outer plate 9 are fixed at the rear end of the right front longitudinal beam end plate 7; the outer side of the right front longitudinal beam inner plate 11 is fixedly connected with the inner side of the right front longitudinal beam outer plate 9.

Further, the left front longitudinal beam outer plate 8 and the right front longitudinal beam outer plate 9 are all made of laser tailor welded steel plates; the thicknesses of the left front longitudinal beam outer plate 8 and the right front longitudinal beam outer plate 9 are gradually thickened from front to back; the left front longitudinal beam inner plate 10 and the right front longitudinal beam inner plate 11 both adopt laser tailor-welded steel plates; the thickness of the left front longitudinal beam inner plate 10 and the right front longitudinal beam inner plate 11 is gradually thickened from front to back, and convex and concave inducing ribs are arranged.

Further, the lower probe beam system comprises a left lower probe beam outer plate 14, a left lower probe beam inner plate 16, a right lower probe beam outer plate 15 and a right lower probe beam inner plate 17; the left lower probe beam inner plate 16 is fixed on the left front longitudinal beam end plate 6; the right lower probe beam inner plate 17 is fixed on the right front longitudinal beam end plate 7; the inner side of the left lower probe beam outer plate 14 is fixedly connected with the outer side of the left lower probe beam inner plate 16; the inner side of the right lower probe beam outer plate 15 is fixedly connected with the outer side of the right lower probe beam inner plate 17.

Further, the left lower probe beam inner plate 16 and the right lower probe beam inner plate 17 both adopt an oblique lower angle form, and the cross section is in an L shape; the front end surfaces of the L-shaped sections of the left lower probe beam inner plate 16 and the right lower probe beam inner plate 17 are respectively attached to the left front longitudinal beam end plate 6 and the right front longitudinal beam end plate 7 and are connected by spot welding; the left lower probe beam outer plate 14 and the right lower probe beam outer plate 15 are of L-shaped cross sections and are oppositely connected with the left lower probe beam inner plate 16 and the right lower probe beam inner plate 17; the left lower probe beam inner plate 16, the left lower probe beam outer plate 14, the right lower probe beam inner plate 17 and the right lower probe beam outer plate 15 form a cavity cross section in a shape like a Chinese character 'kou', and the cavity in the shape like the Chinese character 'kou' is connected with the left front longitudinal beam outer plate 8, the right front longitudinal beam outer plate 9, the left front longitudinal beam end plate 6 and the right front longitudinal beam end plate 7 in a spot welding manner.

Further, the raker beam system comprises a left raker beam 12 and a right raker beam 13; the lower end of the left diagonal bracing beam 12 is fixed on a left lower probe beam inner plate 16; the lower end of the right inclined supporting beam 13 is fixed on the right lower probe beam inner plate 17.

Further, the top beam system comprises a left top beam front plate 18, a left top beam upper plate 20, a left top Liang Xiaban, a right top beam front plate 19, a right top beam upper plate 21, and a right top Liang Xiaban; one end of the left top beam front plate 18 is fixedly connected with the upper end of the left inclined supporting beam 12; one end of the right top beam front plate 19 is fixedly connected with the upper end of the right inclined supporting beam 13; the left top rail upper plate 20 is fixed to the left top rail front plate 18; the right top beam upper plate 21 is fixed on the right top beam front plate 19; the other end of the left top beam front plate 18 is fixedly connected with the left lower probe beam inner plate 16; the other end of the top beam front plate 19 is fixedly connected with the right lower probe beam inner plate 17.

Further, the left top beam upper plate 20 and the right top beam upper plate 21 adopt an L-shaped structure; the left top portion Liang Xiaban and the right top portion Liang Xiaban adopt reverse L-shaped structures; the left top beam upper plate 20 and the left top Liang Xiaban are connected by spot welding; the right top beam upper plate 21 and the right top Liang Xiaban are connected by spot welding; the left top beam upper plate 20 and the left top Liang Xiaban form a cavity section shaped like a Chinese character kou; the right top beam upper plate 21 and the right top Liang Xiaban form a cavity section shaped like a Chinese character kou.

The utility model has the advantages that:

1) The left energy absorption box and the right energy absorption box of the utility model also adopt the section aluminum profile with the shape of Chinese character ri, and the front end is connected with the front anti-collision beam through the C-shaped opening, so that the structure can resist the collision impact to the maximum extent in the whole height range of the beam;

2) The left front longitudinal beam outer plate and the right front longitudinal beam outer plate of the utility model adopt laser tailor-welded steel plates, the thickness of the formed steel plates is 1.6mm/2.0mm respectively, and the effect of gradual energy absorption during collision is realized through the form that the material thickness is gradually increased from front to back;

3) In the utility model, the left front longitudinal beam inner plate and the right front longitudinal beam inner plate are provided with convex and concave inducing ribs for inducing the longitudinal beam to deform during collision, thereby performing collision energy transmission and absorption at a set position;

4) The utility model discloses well left side is visited roof beam planking and right side and is visited the roof beam planking down and adopt "L" type cross-section, with visit roof beam inner panel and right side and visit roof beam inner panel relatively connected under the left side. Through the structure, the inner plate and the outer plate of the left lower probe beam and the inner plate and the outer plate of the right lower probe beam form a cavity cross section in a shape like a Chinese character 'kou', and the cavity is connected with the outer plate of the front longitudinal beam and the end plate of the front longitudinal beam in a spot welding manner, so that the structure can effectively associate a force transmission path of a lower probe beam system and a force transmission path of a longitudinal beam system at an initial position, thereby fully realizing the decomposition of collision energy, not only absorbing more collision energy, but also greatly reducing the attack effect on a barrier;

5) The top beam upper plate and the top Liang Xiaban of the utility model form a cavity section shaped like a Chinese character kou, which can effectively resist the collision force;

6) The utility model discloses well lower probe beam system is connected with horizontal front longitudinal system front end through oblique decurrent angle to realized a triangle-shaped structure, when the impact passes through front anti-collision beam system and transmits triangle-shaped front end point, can pass through two limits of triangle-shaped, and lower probe beam system and front longitudinal system transmit to A post rear respectively, not only decomposed the absorption to the collision energy, also reduced the counter-force of collision barrier simultaneously, realized the collision energy-absorbing and the balance of attack performance;

7) The lower exploring beam system is connected with the tail end of the horizontal top beam system through an oblique downward angle, so that a triangular structure is realized, when collision force is transmitted through the front end water tank, the collision force can be transmitted to the rear of the A column through two sides of the triangle, namely the lower exploring beam system and the top beam system, so that not only is collision energy decomposed and absorbed, but also the counter force of a collision barrier is reduced, and the balance of collision energy absorption and attack performance is realized;

8) The utility model discloses in left bracing beam and right bracing beam through both ends respectively with top beam system and lower visit roof beam system be connected, realized top beam system, lower visit roof beam system and front longitudinal beam system three's relevance, realized the linkage with above-mentioned two "triangle-shaped" structures, this structure can give full play to each branched transmission energy-absorbing effect when the collision is transmitted, the maximize reduce the collision impact and to the attack effect of barrier;

9) The width of the left energy-absorbing box and the width of the right energy-absorbing box are equal to the sum of the widths of the front longitudinal beam and the lower probe beam. The energy transmitted by the front anti-collision beam system can be integrally transmitted to the lower probe beam system and the front longitudinal beam system in the collision process, so that the energy can be effectively decomposed.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic view of the overall structure of the present invention.

In the figure: 1. a front impact beam; 2. a left energy absorption box; 3. a right energy absorption box; 4. a left energy absorption box end plate; 5. a right energy absorption box end plate; 6. a left front longitudinal beam end plate; 7. a right front longitudinal end plate; 8. a left front longitudinal outer plate; 9. a right side front longitudinal outer plate; 10. a left front longitudinal inner plate; 11. a right front longitudinal inner plate; 12. a left raking beam; 13. a right raking beam; 14. a left lower cantilever outer plate; 15. a right lower canopy outer panel; 16. a left lower probe beam inner plate; 17. a right lower probe beam inner plate; 18. a left side top rail front panel; 19. a right side top beam front plate; 20. a left top beam upper plate; 21. a right top beam upper plate; 22. left top Liang Xiaban; 23. right top Liang Xiaban.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

It is noted that, herein, relational terms such as first and second, and the like may be 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.

Referring to fig. 1, a vehicle body collision structure includes a front impact beam system, a front longitudinal beam system, a lower probe beam system, a roof beam system, and a bracing beam system; the front end of the front longitudinal beam system is fixedly connected with the rear end of the front anti-collision beam system; the front end of the lower exploring beam system is fixed at the rear end of the front longitudinal beam system; the lower end of the inclined strut beam system is fixedly connected with the lower exploring beam system; the upper end of the inclined strut beam system is fixedly connected with the top beam system.

The front anti-collision beam system comprises a front anti-collision beam 1, a left energy absorption box 2, a right energy absorption box 3, a left energy absorption box end plate 4 and a right energy absorption box end plate 5; two ends of the front anti-collision beam 1 are fixedly connected with the front ends of the left energy absorption box 2 and the right energy absorption box 3; the rear ends of the left energy-absorbing box 2 and the right energy-absorbing box 3 are respectively and fixedly connected with the front ends of the left energy-absorbing box end plate 4 and the right energy-absorbing box end plate 5.

The front anti-collision beam 1 adopts an aluminum profile stretch bending form and has a section shaped like a Chinese character ri; the section can effectively improve the section performance of the front anti-collision beam and improve the collision energy absorption efficiency. The left energy absorption box 2 and the right energy absorption box 3 are both made of aluminum profiles with sections shaped like Chinese character 'ri', the front ends of the aluminum profiles are connected with the front anti-collision beam 1 through a C-shaped opening, and the structure can resist collision impact to the maximum degree within the whole height range of the beam; the left energy-absorbing box end plate 4 and the right energy-absorbing box end plate 5 are made of aluminum plates. All parts in the front anti-collision beam system are connected by adopting an aluminum arc welding process.

The front longitudinal beam system comprises a left front longitudinal beam end plate 6, a left front longitudinal beam inner plate 10, a left front longitudinal beam outer plate 8, a right front longitudinal beam end plate 7, a right front longitudinal beam inner plate 11 and a right front longitudinal beam outer plate 9; the front end of the left front longitudinal beam end plate 6 is fixedly connected with the rear end of the left energy absorption box end plate 4; the front end of the right front longitudinal beam end plate 7 is fixedly connected with the rear end of the right energy absorption box end plate 5; the left front longitudinal beam inner plate 10 and the left front longitudinal beam outer plate 8 are fixed at the rear end of the left front longitudinal beam end plate 6; the outer side of the left front longitudinal beam inner plate 10 is fixedly connected with the inner side of the left front longitudinal beam outer plate 8; the right front longitudinal beam inner plate 11 and the right front longitudinal beam outer plate 9 are fixed at the rear end of the right front longitudinal beam end plate 7; the outer side of the right front longitudinal beam inner plate 11 is fixedly connected with the inner side of the right front longitudinal beam outer plate 9.

The left front longitudinal beam outer plate 8 and the right front longitudinal beam outer plate 9 are laser tailor-welded steel plates, and the energy absorption effect is realized step by step during collision through the form that the material thickness is increased step by step from front to back. The left front longitudinal beam inner plate 10 and the right front longitudinal beam inner plate 11 adopt laser tailor-welded steel plates, and the energy absorption effect is realized step by step during collision through the form that the material thickness is increased step by step from front to back. Meanwhile, the left and right front side member inner panels 10 and 11 are provided with convex and concave induction ribs for inducing deformation of the side members at the time of collision, thereby performing collision energy transfer and absorption at a set position. The left front longitudinal beam end plate 6 and the right front longitudinal beam end plate 7 are vertically arranged at the foremost end of the front longitudinal beam and are attached to the left energy absorption box end plate 4 and the right energy absorption box end plate 5. All parts in the front longitudinal beam system are connected by adopting a spot welding process.

The lower probe beam system comprises a left lower probe beam outer plate 14, a left lower probe beam inner plate 16, a right lower probe beam outer plate 15 and a right lower probe beam inner plate 17; the left lower probe beam inner plate 16 is fixed on the left front longitudinal beam end plate 6; the right lower probe beam inner plate 17 is fixed on the right front longitudinal beam end plate 7; the inner side of the left lower probe beam outer plate 14 is fixedly connected with the outer side of the left lower probe beam inner plate 16; the inner side of the right lower probe beam outer plate 15 is fixedly connected with the outer side of the right lower probe beam inner plate 17.

The left lower probe beam inner plate 16 and the right lower probe beam inner plate 17 both adopt an oblique lower angle form, and the cross section is L-shaped; the front end surfaces of the L-shaped sections of the left lower probe beam inner plate 16 and the right lower probe beam inner plate 17 are respectively attached to the left front longitudinal beam end plate 6 and the right front longitudinal beam end plate 7 and are connected by spot welding; the left lower probe beam outer plate 14 and the right lower probe beam outer plate 15 are of L-shaped cross sections and are oppositely connected with the left lower probe beam inner plate 16 and the right lower probe beam inner plate 17; the left lower probe beam inner plate 16, the left lower probe beam outer plate 14, the right lower probe beam inner plate 17 and the right lower probe beam outer plate 15 form a square cavity cross section, and the square cavity is connected with the left front longitudinal beam outer plate 8, the right front longitudinal beam outer plate 9, the left front longitudinal beam end plate 6 and the right front longitudinal beam end plate 7 in a spot welding manner.

The top beam system comprises a left top beam front plate 18, a left top beam upper plate 20, a left top Liang Xiaban, a right top beam front plate 19, a right top beam upper plate 21, a right top Liang Xiaban; one end of the left top beam front plate 18 is fixedly connected with the upper end of the left inclined supporting beam 12; one end of the right top beam front plate 19 is fixedly connected with the upper end of the right inclined supporting beam 13; the left top rail upper plate 20 is fixed to the left top rail front plate 18; the right top beam upper plate 21 is fixed on the right top beam front plate 19; the other end of the left top beam front plate 18 is fixedly connected with the left lower probe beam inner plate 16; the other end of the top beam front plate 19 is fixedly connected with the right lower probe beam inner plate 17.

In the top beam system, the left top beam front plate 18 and the right top beam front plate 19 are continuously connected with peripheral parts through bolts, so that the assembly adjustability is realized, and the assembly precision requirement of the front end of the whole vehicle is met. The left top beam upper plate 20 and the right top beam upper plate 21 adopt an L-shaped structure; the left top portion Liang Xiaban and the right top portion Liang Xiaban adopt reverse L-shaped structures; the left top beam upper plate 20 and the left top Liang Xiaban are connected by spot welding; the right top beam upper plate 21 and the right top Liang Xiaban are connected by spot welding; the left top beam upper plate 20 and the left top Liang Xiaban form a cavity section shaped like a Chinese character kou, and collision force can be effectively resisted. The right top beam upper plate 21 and the right top Liang Xiaban form a cavity section shaped like a Chinese character kou, and collision force can be effectively resisted. The tail end of the top beam system is connected with the tail end of the lower probe beam system through spot welding, the connecting position is located at the front end of the A column, and finally the top beam system is connected with the A column.

The raker beam system comprises a left raker beam 12 and a right raker beam 13; the lower end of the left diagonal bracing beam 12 is fixed on a left lower probe beam inner plate 16; the lower end of the right inclined supporting beam 13 is fixed on the right lower probe beam inner plate 17.

The left inclined supporting beam 12 and the right inclined supporting beam 13 are of N-shaped cross sections, and two ends of the left inclined supporting beam and the right inclined supporting beam are respectively connected with the front end of the lower exploring beam system and the front end of the top beam system in a spot welding mode.

In the structure, the lower probe beam system is connected with the front end of the horizontal front longitudinal beam system through an oblique downward angle, so that a triangular structure is realized, when the collision force is transmitted to a triangular front end point through the front anti-collision beam system, the two sides of the triangle can be passed, namely the lower probe beam system and the front longitudinal beam system are respectively transmitted to the rear part of the A column, not only is the collision energy decomposed and absorbed, but also the counter force of the collision barrier is reduced, and the balance of collision energy absorption and attack performance is realized.

In the structure, the lower probe beam system is connected with the tail end of the horizontal top beam system through an oblique downward angle, so that a triangular structure is realized, when collision force is transmitted through the front end water tank, the two sides of the triangle can be used, namely, the lower probe beam system and the top beam system are respectively transmitted to the rear part of the A column, not only is the collision energy decomposed and absorbed, but also the counter force of the collision barrier is reduced, and the balance of collision energy absorption and attack performance is realized.

In the structure, the left inclined supporting beam 12 and the right inclined supporting beam 13 are respectively connected with the top beam system and the lower exploring beam system through two ends, the association among the top beam system, the lower exploring beam system and the front longitudinal beam system is realized, the linkage is realized through the two triangular structures, the structure can fully play the transmission and energy absorption functions of each branch during collision transmission, and the attack effect on the barrier is reduced to the maximum.

In the structure, the width of the left energy-absorbing box 2 and the width of the right energy-absorbing box 3 are equivalent to the sum of the widths of the front longitudinal beam and the lower probe beam. The energy transmitted by the front anti-collision beam system can be integrally transmitted to the lower probe beam system and the front longitudinal beam system in the collision process, so that the energy can be effectively decomposed.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the protection scope of the present invention is not limited to the details of the above embodiments, and within the technical concept of the present invention, any person skilled in the art is within the technical scope of the present invention, and according to the technical solution of the present invention and the inventive concept thereof, equivalent replacement or change is made, and these simple modifications all belong to the protection scope of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the present invention does not need to describe any combination of the features.

In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.

Claims (10)

1. A car body collision structure is characterized by comprising a front anti-collision beam system, a front longitudinal beam system, a lower probe beam system, a top beam system and an inclined strut beam system; the front end of the front longitudinal beam system is fixedly connected with the rear end of the front anti-collision beam system; the front end of the lower exploring beam system is fixed at the rear end of the front longitudinal beam system; the lower end of the inclined strut beam system is fixedly connected with the lower exploring beam system; the upper end of the inclined strut beam system is fixedly connected with the top beam system.

2. The vehicle body collision structure according to claim 1, wherein the front collision beam system comprises a front collision beam (1), a left energy absorption box (2), a right energy absorption box (3), a left energy absorption box end plate (4) and a right energy absorption box end plate (5); two ends of the front anti-collision beam (1) are fixedly connected with the front ends of the left energy absorption box (2) and the right energy absorption box (3); the rear ends of the left energy absorption box (2) and the right energy absorption box (3) are respectively fixedly connected with the front ends of the left energy absorption box end plate (4) and the right energy absorption box end plate (5).

3. The vehicle body collision structure according to claim 2, wherein the front impact beam (1) is in a form of stretch bending of an aluminum profile, and has a section shaped like a Chinese character ri; the left energy absorption box (2) and the right energy absorption box (3) are both made of aluminum profiles with sections shaped like Chinese character 'ri', and the front ends of the aluminum profiles are connected with the front anti-collision beam (1) through a C-shaped opening; the left energy-absorbing box end plate (4) and the right energy-absorbing box end plate (5) are in an aluminum plate form.

4. The vehicle body collision structure according to claim 2, wherein the front rail system includes a left front rail end plate (6), a left front rail inner plate (10), a left front rail outer plate (8), a right front rail end plate (7), a right front rail inner plate (11), a right front rail outer plate (9); the front end of the left front longitudinal beam end plate (6) is fixedly connected with the rear end of the left energy absorption box end plate (4); the front end of the right front longitudinal beam end plate (7) is fixedly connected with the rear end of the right energy absorption box end plate (5); the left front longitudinal beam inner plate (10) and the left front longitudinal beam outer plate (8) are fixed at the rear end of the left front longitudinal beam end plate (6); the outer side of the left front longitudinal beam inner plate (10) is fixedly connected with the inner side of the left front longitudinal beam outer plate (8); the right front longitudinal beam inner plate (11) and the right front longitudinal beam outer plate (9) are fixed at the rear end of the right front longitudinal beam end plate (7); the outer side of the right front longitudinal beam inner plate (11) is fixedly connected with the inner side of the right front longitudinal beam outer plate (9).

5. The vehicle body collision structure according to claim 4, wherein the left side front side rail outer panel (8) and the right side front side rail outer panel (9) are both made of laser tailor welded steel plates; the thickness of the left front longitudinal beam outer plate (8) and the right front longitudinal beam outer plate (9) is gradually thickened from front to back; the left front longitudinal beam inner plate (10) and the right front longitudinal beam inner plate (11) are both made of laser tailor-welded steel plates; the thickness of the left front longitudinal beam inner plate (10) and the right front longitudinal beam inner plate (11) is gradually thickened from front to back, and convex and concave inducing ribs are arranged.

6. The vehicle body impact structure according to claim 4, wherein said lower probe beam system includes a left lower probe beam outer panel (14), a left lower probe beam inner panel (16), a right lower probe beam outer panel (15), a right lower probe beam inner panel (17); the left lower probe beam inner plate (16) is fixed on the left front longitudinal beam end plate (6); the right lower probe beam inner plate (17) is fixed on the right front longitudinal beam end plate (7); the inner side of the left lower probe beam outer plate (14) is fixedly connected with the outer side of the left lower probe beam inner plate (16); the inner side of the right lower probe beam outer plate (15) is fixedly connected with the outer side of the right lower probe beam inner plate (17).

7. The vehicle body collision structure according to claim 6, wherein the left inner rocker panel (16) and the right inner rocker panel (17) are both in a diagonally downward angular form, and have an "L" shaped cross section; the front end surfaces of the L-shaped cross sections of the left lower probe beam inner plate (16) and the right lower probe beam inner plate (17) are respectively attached to the left front longitudinal beam end plate (6) and the right front longitudinal beam end plate (7) and are connected by spot welding; the left lower probe beam outer plate (14) and the right lower probe beam outer plate (15) adopt L-shaped cross sections and are oppositely connected with the left lower probe beam inner plate (16) and the right lower probe beam inner plate (17); the left lower probe beam inner plate (16), the left lower probe beam outer plate (14), the right lower probe beam inner plate (17) and the right lower probe beam outer plate (15) form a cavity cross section in a shape like a Chinese character 'kou', and the cavity in the shape like the Chinese character 'kou' is connected with the left front longitudinal beam outer plate (8), the right front longitudinal beam outer plate (9), the left front longitudinal beam end plate (6) and the right front longitudinal beam end plate (7) in a spot welding manner.

8. A vehicle body collision structure according to claim 6, wherein the bracing beam system comprises a left bracing beam (12) and a right bracing beam (13); the lower end of the left diagonal bracing beam (12) is fixed on a left lower probe beam inner plate (16); the lower end of the right inclined supporting beam (13) is fixed on the right lower probe beam inner plate (17).

9. The vehicle body collision structure according to claim 6, wherein the roof rail system includes a left roof rail front panel (18), a left roof rail upper panel (20), a left roof portion Liang Xiaban (22), a right roof rail front panel (19), a right roof rail upper panel (21), a right roof portion Liang Xiaban (23); one end of the left top beam front plate (18) is fixedly connected with the upper end of the left diagonal bracing beam (12); one end of the right top beam front plate (19) is fixedly connected with the upper end of the right inclined supporting beam (13); the left top beam upper plate (20) is fixed on the left top beam front plate (18); the right top beam upper plate (21) is fixed on the right top beam front plate (19); the other end of the left top beam front plate (18) is fixedly connected with a left lower probe beam inner plate (16); the other end of the top beam front plate (19) is fixedly connected with the right lower probe beam inner plate (17).

10. A vehicle body collision structure according to claim 9, wherein the left roof rail upper panel (20) and the right roof rail upper panel (21) adopt an "L" shaped structure; the left top Liang Xiaban (22) and the right top Liang Xiaban (23) adopt reverse L-shaped structures; the left top beam upper plate (20) and the left top Liang Xiaban (22) are connected through spot welding; the right top beam upper plate (21) and the right top Liang Xiaban (23) are connected through spot welding; the left top beam upper plate (20) and the left top Liang Xiaban (22) form a cavity section in a shape of a Chinese character kou; the right top beam upper plate (21) and the right top Liang Xiaban (23) form a square cavity section.

Images