An upper longitudinal beam structure assembly, a vehicle body and a vehicle

Abstract

The application discloses an upper longitudinal beam structure assembly, a vehicle body and a vehicle, and belongs to the technical field of automobile body-in-white. The upper part of the upper longitudinal beam structure assembly is designed in a shape following the shock tower, and the Z-direction height of the compression section is reduced. All components such as the support, the gas spring, the buffer block and the hinge are connected on the side surface, and the collision deformation space between the engine cover and the shotgun is increased. The front fender support is welded to the lower diagonal support beam structure, the Z-direction height is reduced, and the cantilever structure is adopted, so that the overturning deformation occurs during the collision, and the head injury is reduced. The middle fender support adopts a U-shaped structure, effectively avoids the engine cover side wall structure, and can be crushed in time during the collision, so that the engine cover is fully deformed. The hinge and the mounting support arrangement position are optimized, the avoidance structure is increased, and the head injury in the region is weakened. The problem that the height of the engine cover of a new energy vehicle and the pedestrian protection performance of the vehicle cannot be considered together is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile body-in-white, and in particular to an upper longitudinal beam structure assembly, a vehicle body and a vehicle. BACKGROUND

[0002] The statements herein merely provide background information related to the present application and do not necessarily constitute the prior art.

[0003] Automobile pedestrian protection is a very important safety measure, which is of great significance to protect the life safety of pedestrians, reduce the casualty rate of traffic accidents, and improve the safety performance of automobiles. The engine cover area can provide sufficient buffering during the collision process, thereby reducing the impact force on the head of the pedestrian, significantly improving the survival rate of the pedestrian in the accident, and reducing the occurrence of serious injury and death.

[0004] However, in order to improve the appearance and reduce the wind resistance of the new energy vehicle, the vehicle's cruising ability is enhanced, and the vehicle's front height is required to be as low as possible, and the engine cover height is required to be as low as possible. The lower the height of the engine cover, the closer the distance between the outer surface and the vehicle body structure, especially the upper longitudinal beam (also known as shotgun) area on both sides of the engine cover, the rigidity of the vehicle body structure is large, which causes the head injury value to increase sharply when the vehicle collides with the pedestrian. SUMMARY

[0005] In view of the deficiencies in the prior art, the present application aims to provide an upper longitudinal beam structure assembly, a vehicle body and a vehicle, which can improve the pedestrian protection performance of the automobile while ensuring the appearance effect of the vehicle.

[0006] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0007] In a first aspect, the present application provides an upper longitudinal beam structure assembly;

[0008] An upper longitudinal beam structure assembly, comprising a front longitudinal beam wheel cover connecting beam assembly, a front wheel cover upper reinforcing beam outer plate front assembly and a front wheel cover upper reinforcing beam outer plate rear assembly connected in sequence along the longitudinal direction of the engine cover;

[0009] The front longitudinal beam wheel cover connecting beam assembly is obliquely arranged at the bottom of the front wheel cover upper reinforcing beam outer plate front assembly and located at one end of the front wheel cover upper reinforcing beam outer plate front assembly along the length direction; the front wheel cover upper reinforcing beam outer plate front assembly is arranged at the cast aluminum shock tower, and the upper surface of the front wheel cover upper reinforcing beam outer plate front assembly is flush with the highest point of the cast aluminum shock tower; the front wheel cover upper reinforcing beam outer plate rear assembly is obliquely arranged at the other end of the front wheel cover upper reinforcing beam outer plate front assembly along the length direction, and is arranged opposite to the front longitudinal beam wheel cover connecting beam assembly.

[0010] In some embodiments, the front longitudinal beam wheel cover connecting beam assembly comprises a front longitudinal beam wheel cover connecting beam body, an upper cover plate connected to the upper side of the front longitudinal beam wheel cover connecting beam body, an outer plate connected to one side of the front longitudinal beam wheel cover connecting beam body, and a fender front mounting bracket assembly connected to the other side of the front longitudinal beam wheel cover connecting beam body.

[0011] In some embodiments, the fender front mounting bracket assembly comprises a fender bracket reinforcing plate, one side of which is arranged on the front longitudinal beam wheel cover connecting beam body, and the other side of which is provided with a fender front connecting plate, the top end of which is provided with a fender front mounting bracket.

[0012] The fender front mounting bracket is an L-shaped cantilever structure.

[0013] In some embodiments, the front wheel cover upper reinforcing beam outer plate front assembly comprises a front wheel cover upper reinforcing beam outer plate front body, which forms a square cavity together with the cast aluminum shock tower.

[0014] One side of the front wheel cover upper reinforcing beam outer plate front body is sequentially provided with a buffer block bracket, a fender middle bracket, and a fender rear bracket along the length direction.

[0015] In some embodiments, the Z-direction cross-sectional height of the front wheel cover upper reinforcing beam outer plate front body is not less than 27mm, and the front wheel cover upper reinforcing beam outer plate front body is made of high-strength steel.

[0016] In some embodiments, the buffer block bracket is an L-shaped structure, the fender middle bracket is a U-shaped structure, and the fender rear bracket is a U-shaped structure.

[0017] The height of the buffer block bracket, the fender middle bracket, and the fender rear bracket is lower than that of the front wheel cover upper reinforcing beam outer plate front body.

[0018] In some embodiments, the front wheel cover upper reinforcing beam outer plate rear assembly comprises a front wheel cover upper reinforcing beam outer plate rear body, one end of which is provided with a gas spring mounting bracket along the length direction, and one end of which is provided with a hinge mounting bracket along the width direction.

[0019] In some embodiments, the front wheel cover upper reinforcing beam outer plate rear body comprises a first horizontal part, a first vertical part, and a second horizontal part connected in sequence to form a U-shaped structure.

[0020] The first vertical part is provided with a groove structure, and the hinge mounting bracket is located in the middle of the groove structure.

[0021] In a second aspect, the present application provides a vehicle body;

[0022] A vehicle body comprising the upper longitudinal beam structure assembly.

[0023] In a third aspect, the present application provides a vehicle;

[0024] A vehicle comprising a vehicle body, the vehicle body comprising the upper longitudinal beam structure assembly.

[0025] The one or more technical solutions provided by the present application have at least the following technical effects or advantages:

[0026] 1. The technical solution provided by the present application proposes a reasonable automobile shotgun structure, which is beneficial to the deformation of the engine cover, thereby reducing the head injury value when the vehicle collides with a pedestrian, and improving the pedestrian protection performance of the automobile while ensuring the appearance effect of the vehicle.

[0027] 2. The technical solution provided by the present application compresses the Z-direction height of the upper part of the upper longitudinal beam structure assembly by random design with the shock tower, connects all components such as supports, gas springs, buffer blocks, and hinges on the side surface, increases the collision deformation space between the engine cover and the shotgun, welds the front fender support to the lower diagonal strut beam structure to reduce the Z-direction height, adopts a cantilever structure to cause overturning deformation during collision and reduce head injury, adopts a U-shaped structure for the middle fender support to effectively avoid the engine cover side wall structure, and can be crushed in time during collision to ensure sufficient deformation of the engine cover, and the head injury in this area is reduced by optimizing the hinge and the installation support arrangement position and increasing the avoidance structure.

[0028] 3. The technical solution provided by the present application optimizes the Z-direction height and structure, combines more reasonable support design and arrangement, and improves the engine cover deformation performance of the shotgun area as a whole, thereby providing sufficient collision deformation space while reducing the vehicle head height and protecting the safety of pedestrians. BRIEF DESCRIPTION OF DRAWINGS

[0029] The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the present application, and are incorporated herein for purposes of illustrating the preferred embodiments of the present application and explaining the present application, and are not intended to limit the present application unduly.

[0030] Figure 1 is a structural schematic diagram of the upper longitudinal beam structure assembly provided by the embodiment of the present application;

[0031] Figure 2 is an exploded structural schematic diagram of the front longitudinal beam wheel cover connecting beam assembly provided by the embodiment of the present application;

[0032] Figure 3It is the explosion structure schematic diagram of front wheel cover upper reinforcing beam outer plate front assembly provided by the embodiment of the present application;

[0033] Figure 4 It is the explosion structure schematic diagram of front wheel cover upper reinforcing beam outer plate rear assembly provided by the embodiment of the present application;

[0034] Figure 5 It is the boundary schematic diagram of upper longitudinal beam structure assembly provided by the embodiment of the present application;

[0035] Figure 6 It is the engine cover deformation space schematic diagram of A-A section of upper longitudinal beam structure assembly provided by the embodiment of the present application;

[0036] Figure 7 It is the engine cover deformation space schematic diagram of B-B section of upper longitudinal beam structure assembly provided by the embodiment of the present application;

[0037] Figure 8 It is the hinge position schematic diagram of C-C section of upper longitudinal beam structure assembly provided by the embodiment of the present application;

[0038] In the figure: 11, front longitudinal beam wheel cover connecting beam assembly; 12, front wheel cover upper reinforcing beam outer plate front assembly, 13, front wheel cover upper reinforcing beam outer plate rear assembly; 21, upper cover plate; 22, front longitudinal beam wheel cover connecting beam inner plate upper section; 23, front longitudinal beam wheel cover connecting beam inner plate lower section; 24, outer plate; 25, fender front mounting support; 26, fender front connecting plate; 27, fender support reinforcing plate; 31, front wheel cover upper reinforcing beam outer plate front body; 32, buffer block support; 33, fender middle support; 34, fender rear support; 41, hinge mounting support; 42, front wheel cover upper reinforcing beam outer plate rear body; 43, gas spring mounting support; 51, engine cover; 52, buffer block; 53, gas spring; 54, hinge; 55, cast aluminum shock tower.

[0039] The mutual distance or size is exaggerated for showing the position of each part, and the schematic diagram is only used for illustration. DETAILED DESCRIPTION

[0040] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0041] Term explanation:

[0042] Shotgun structure: refers to the upper longitudinal beam, also known as the front longitudinal beam of the reinforcing structure. It is located between the A-pillar of the vehicle body and the headlamp cross beam, and bears the key force transmission task. It is an important part of the front end structure of the vehicle and is the core component of the front collision safety system of the vehicle. It is mainly used to strengthen the front structure and optimize the energy transmission path during the collision.

[0043] Embodiment one

[0044] As introduced in the background, the existing new energy vehicles cannot balance the height of the engine cover 51 and the pedestrian protection performance of the vehicle. In order to solve the above technical problems, the embodiment proposes an upper longitudinal beam structure assembly, which is beneficial to the deformation of the engine cover 51 through optimization of the structure design, thereby reducing the injury value to pedestrians during the collision.

[0045] In combination Figures 1-8 , the upper longitudinal beam structure assembly includes a front longitudinal beam wheel cover connecting beam assembly 11, a front wheel cover upper reinforcing beam outer plate front assembly 12 and a front wheel cover upper reinforcing beam outer plate rear assembly 13 connected in sequence along the longitudinal direction of the engine cover 51; the front longitudinal beam wheel cover connecting beam assembly 11 is welded to the bottom of the front wheel cover upper reinforcing beam outer plate front assembly 12 and is located at one end of the front wheel cover upper reinforcing beam outer plate front assembly 12 along the length direction, forming an included angle with the front wheel cover upper reinforcing beam outer plate front assembly 12; the front wheel cover upper reinforcing beam outer plate front assembly 12 is overlapped on the cast aluminum shock tower 55, and the upper surface of the front wheel cover upper reinforcing beam outer plate front assembly 12 is flush with the highest point of the cast aluminum shock tower 55; the front wheel cover upper reinforcing beam outer plate rear assembly 13 is connected to the other end of the front wheel cover upper reinforcing beam outer plate front assembly 12 along the length direction by bolts, and is arranged opposite to the front longitudinal beam wheel cover connecting beam assembly 11.

[0046] Further, as shown in Figure 1 , 2 , the front longitudinal beam wheel cover connecting beam assembly 11 includes a front longitudinal beam wheel cover connecting beam body, an upper cover plate 21 and an outer plate 24. The front longitudinal beam wheel cover connecting beam body is composed of a connected front longitudinal beam wheel cover connecting beam inner plate upper segment 22 and a front longitudinal beam wheel cover connecting beam inner plate lower segment 23, and the front longitudinal beam wheel cover connecting beam inner plate lower segment 23 is bent backward. The middle part of the front longitudinal beam wheel cover connecting beam body is recessed inward to form a groove, and the edge forms a flange. The outer plate 24 is welded to one side (opening side) of the front longitudinal beam wheel cover connecting beam body, and the outer plate 24 and the front longitudinal beam wheel cover connecting beam body form a square cavity, which provides a welding position for the fender front mounting bracket 25. The upper cover plate 21 is welded above the front longitudinal beam wheel cover connecting beam body and the outer plate 24, and the other side (non-opening side) of the front longitudinal beam wheel cover connecting beam body is welded with the fender front mounting bracket 25 assembly.

[0047] The fender front mounting bracket 25 assembly comprises a fender front connecting plate 26, a fender front mounting bracket 25 and a fender bracket reinforcing plate 27. One side of the fender bracket reinforcing plate 27 is a U-shaped structure matched with the non-opening side of the front longitudinal beam wheel cover connecting beam body, and is welded to the front longitudinal beam wheel cover connecting beam body. The other side of the fender bracket reinforcing plate 27 has a plate-shaped protrusion. One side of the fender front connecting plate 26 has a recess matched with the plate-shaped protrusion. The fender front connecting plate 26 is installed on the other side of the fender bracket reinforcing plate 27. The fender front connecting plate 26 and the fender bracket reinforcing plate 27 form a U-shaped structure with the middle part being recessed inward. The lower edge is folded and welded to the fender bracket reinforcing plate 27. The upper outer side is folded and welded to the fender bracket reinforcing plate 27, the fender front mounting bracket 25 and the fender bracket reinforcing plate 27. The fender front mounting bracket 25 is an L-shaped cantilever structure. The vertical part is welded to the top end of the fender front connecting plate 26. The horizontal part is overlapped with the front wheel cover upper reinforcing beam outer plate front assembly 12 and has a lower height than the front wheel cover upper reinforcing beam outer plate front assembly 12, thereby increasing the deformation space of the engine cover 51Z and facilitating the compression bending deformation of the L-shaped cantilever structure, thereby reducing head injury.

[0048] As shown in the specific effect as Figure 6 shown, the bracket presents a cantilever structure, which is deformed by overturning in a collision, thereby reducing head injury.

[0049] As shown in the specific effect as Figure 1 , Figure 3 shown, the front wheel cover upper reinforcing beam outer plate front assembly 12 comprises a front wheel cover upper reinforcing beam outer plate front body 31, a buffer block bracket 32, a fender middle bracket 33 and a fender rear bracket 34. The front wheel cover upper reinforcing beam outer plate front body 31 is welded above the upper cover plate 21. The front wheel cover upper reinforcing beam outer plate front body 31 is an L-shaped structure. The outer side of the horizontal part is overlapped with the cast aluminum shock tower 55. The bottom of the vertical part is connected with a horizontal flange and is overlapped with the L-shaped flange of the cast aluminum shock tower 55, thereby forming a square cavity with the L-shaped flange of the cast aluminum shock tower 55. The installation space of the buffer block bracket 32, the fender middle bracket 33 and the fender rear bracket 34 is formed between the horizontal flange and the vertical part. The buffer block bracket 32, the fender middle bracket 33 and the fender rear bracket 34 are installed on the vertical part of the front wheel cover upper reinforcing beam outer plate front body 31 in sequence along the length direction. The height of the buffer block bracket 32, the fender middle bracket 33 and the fender rear bracket 34 is lower than the upper surface of the front wheel cover upper reinforcing beam outer plate front body 31, thereby increasing the Z-direction deformation space of the engine cover 51.

[0050] At the same time, the upper surface of the front wheel cover upper reinforcing beam outer plate 24 is flat with the cast aluminum shock tower 55, and no additional bracket is arranged above, thereby increasing the collision deformation space of the engine cover 51.

[0051] Specifically, the buffer block support 32 is an L-shaped structure composed of a vertical plate and a horizontal plate, connected with the front part of the front fender upper reinforcement outer plate 31 through the vertical plate, and through simulation calculation, can meet the strength requirements of the buffer block 52 and timely deformation when the engine cover 51 is collided; the fender middle support 33 is a U-shaped structure, and the fender rear support 34 is a U-shaped structure, the U-shaped structure is composed of a first vertical plate, a first horizontal plate, a second vertical plate and a second horizontal plate connected in sequence; different from the traditional L-shaped structure, the middle position of the U-shaped structure is suspended, and when the engine cover 51 is subjected to collision and downward deformation, the support can effectively avoid the sidewall structure of the engine cover 51, thereby increasing the space for the downward deformation of the engine cover 51. The U-shaped structure has more bending points and is more prone to crushing deformation, thereby making the engine cover 51 more easily deformed and reducing the head injury of pedestrians; and the middle positions of the fender middle support 33 and the fender rear support 34 provide arrangement space for the gas spring 53, which can arrange the gas spring 53 on the shotgun side, thereby increasing the deformation space between the engine cover 51 and the shotgun; the specific effect is shown in Figure 7 .

[0052] The front part of the reinforcement outer plate 24 is formed by stamping a metal sheet, the material is high-strength steel, the upper surface is designed to follow the shape of the cast aluminum shock tower 55, the height of the reinforcing rib protrusion is not more than 3mm, the minimum Z-direction cross-sectional height is only 27mm, and the average cross-sectional height is about 30mm. By compressing the Z-direction cross-sectional height to the extreme, the collision deformation space between the engine cover 51 and the shotgun is increased. Due to the low Z-direction height, the side nut projection welding space is insufficient, and pull rivet nuts are used to provide mounting points for the side supports. The front part of the reinforcement outer plate 24 is connected with the shock tower through SPR (self-piercing riveting).

[0053] Further, as shown in Figure 1 , Figure 4As shown, the front wheel cover upper reinforcement beam outer plate rear assembly 13 includes a front wheel cover upper reinforcement beam outer plate rear body 42, one end of the front wheel cover upper reinforcement beam outer plate rear body 42 in the length direction is connected with an air spring mounting bracket 43, one end of the front wheel cover upper reinforcement beam outer plate rear body 42 in the width direction is connected with a hinge mounting bracket 41 through a Y-direction bolt, and then the hinge 54 is arranged on the side of the shotgun structure, the deformation space between the engine cover 51 and the shotgun structure is increased; the front wheel cover upper reinforcement beam outer plate rear body 42 includes a first horizontal part, a first vertical part and a second horizontal part connected in sequence to form a U-shaped structure; a groove structure is formed on the first vertical part, the hinge mounting bracket 41 is located in the middle of the groove structure, one side of the air spring mounting bracket 43 is mounted on the end of the front wheel cover upper reinforcement beam outer plate rear body 42, and the other side is mounted on the end of the front wheel cover upper reinforcement beam front body 31; the arrangement height of the hinge 54 in the Z direction is reduced, the hinge 54 is farther away from the outer cover, and when the hinge 54 is impacted, more Z-direction deformation space can be provided.

[0054] In use, the front longitudinal beam wheel cover connecting beam assembly 11 is connected with the engine compartment longitudinal beam, the front wheel cover upper reinforcement beam outer plate front assembly 12 is overlapped with the flange of the cast aluminum shock tower 55, and the front wheel cover upper reinforcement beam outer plate rear assembly 13 is connected with the A-pillar of the vehicle body.

[0055] Embodiment two

[0056] Based on the above upper longitudinal beam structure assembly, the embodiment of the present application further provides a vehicle body, which is provided with the upper longitudinal beam structure assembly described in the above embodiment. Since the above upper longitudinal beam structure assembly has the above technical effects, the technical effects of the vehicle body adopting the upper longitudinal beam structure assembly are referred to the above embodiment.

[0057] Embodiment three

[0058] Based on the above upper longitudinal beam structure assembly, the embodiment of the present application further provides a vehicle, which includes a vehicle body, and the vehicle body is provided with the upper longitudinal beam structure assembly described in the above embodiment. Since the above upper longitudinal beam structure assembly has the above technical effects, the technical effects of the vehicle adopting the upper longitudinal beam structure assembly are referred to the above embodiment.

[0059] Although the specific embodiments of the present application are described above with reference to the drawings, the present application is not limited to the above embodiments, and various modifications or changes can be made by those skilled in the art without creative labor, which are still within the protection scope of the present application.

Claims

1. A roof rail structure assembly, comprising: The front longitudinal beam wheel cover connecting beam assembly, the front wheel cover upper reinforcing beam outer plate front assembly and the front wheel cover upper reinforcing beam outer plate rear assembly are sequentially connected along the longitudinal direction of the engine cover. The front longitudinal beam wheel cover connecting beam assembly is obliquely arranged at the bottom of the front wheel cover upper reinforcing beam outer plate front assembly and is located at one end of the front wheel cover upper reinforcing beam outer plate front assembly along the length direction; the front wheel cover upper reinforcing beam outer plate front assembly is arranged at the cast aluminum shock tower, and the upper surface of the front wheel cover upper reinforcing beam outer plate front assembly is flush with the highest point of the cast aluminum shock tower; the front wheel cover upper reinforcing beam outer plate rear assembly is obliquely arranged at the other end of the front wheel cover upper reinforcing beam outer plate front assembly along the length direction and is oppositely arranged with the front longitudinal beam wheel cover connecting beam assembly. The front longitudinal beam wheel cover connecting beam assembly comprises a front longitudinal beam wheel cover connecting beam main body, an upper cover plate connected to the upper side of the front longitudinal beam wheel cover connecting beam main body, an outer plate connected to one side of the front longitudinal beam wheel cover connecting beam main body, and a fender front mounting bracket assembly connected to the other side of the front longitudinal beam wheel cover connecting beam main body. The fender front mounting bracket assembly comprises a fender bracket reinforcing plate, one side of the fender bracket reinforcing plate is arranged at the front longitudinal beam wheel cover connecting beam main body, the other side of the fender bracket reinforcing plate is provided with a fender front connecting plate, and the top end of the fender front connecting plate is provided with a fender front mounting bracket. The fender front mounting bracket is an L-shaped cantilever structure, the vertical part of the fender front mounting bracket is welded to the top end of the fender front connecting plate, the horizontal part of the fender front mounting bracket is overlapped with the front wheel cover upper reinforcing beam outer plate front assembly, and the height of the fender front mounting bracket is lower than that of the front wheel cover upper reinforcing beam outer plate front assembly.

2. The roof rail structure assembly of claim 1, wherein, The front wheel cover upper reinforcing beam outer plate front assembly comprises a front wheel cover upper reinforcing beam outer plate front body, and the front wheel cover upper reinforcing beam outer plate front body and the cast aluminum shock tower form a square cavity. One side of the front wheel cover upper reinforcing beam outer plate front body is sequentially provided with a buffer block bracket, a fender middle bracket and a fender rear bracket along the length direction.

3. The roof rail structure assembly of claim 2, wherein, The Z-direction cross-sectional height of the front wheel cover upper reinforcing beam outer plate front body is not less than 27 mm, and the front wheel cover upper reinforcing beam outer plate front body is made of high-strength steel.

4. The roof rail structure assembly of claim 2, wherein, The buffer block bracket is an L-shaped structure, the fender middle bracket is a U-shaped structure, and the fender rear bracket is a U-shaped structure. The height of the buffer block bracket, the fender middle bracket and the fender rear bracket is lower than that of the front wheel cover upper reinforcing beam outer plate front body.

5. The roof rail structure assembly of claim 1, wherein, The front wheel cover upper reinforcing beam outer plate rear assembly comprises a front wheel cover upper reinforcing beam outer plate rear body, a gas spring mounting bracket is arranged at one end of the front wheel cover upper reinforcing beam outer plate rear body along the length direction, and a hinge mounting bracket is arranged at one end of the front wheel cover upper reinforcing beam outer plate rear body along the width direction.

6. The roof rail structure assembly of claim 5, wherein, The front wheel cover upper reinforcing beam outer plate rear body comprises a first horizontal part, a first vertical part and a second horizontal part which are sequentially connected to form a U-shaped structure. The first vertical part is provided with a groove structure, and the hinge mounting bracket is located in the middle of the groove structure.

7. A vehicle body, characterized by The upper longitudinal beam structure assembly comprises the upper longitudinal beam structure assembly of any one of claims 1-6.

8. A vehicle characterized by comprising: The vehicle body includes the upper longitudinal beam structure assembly of any one of claims 1-6.

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