Front longitudinal beam assembly and vehicle

Abstract

The utility model relates to the technical field of vehicle manufacturing, in particular to a front longitudinal beam assembly and a vehicle. The front longitudinal beam assembly comprises a front longitudinal beam rear section and an auxiliary frame mounting plate, the auxiliary frame mounting plate is provided with a front connecting part and a side connecting part, the front connecting part is fixedly connected to the inner side of the front longitudinal beam rear section in the width direction of a vehicle, and the side connecting part is used for being fixedly connected with a middle channel reinforcing plate. According to the front longitudinal beam assembly, a plurality of force transmission paths are formed through the auxiliary frame mounting plate, collision energy can be effectively dispersed, the strength and stability of a vehicle body are ensured, and therefore collision safety is improved, and the structure is simple.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle manufacturing technical field, in particular to a kind of front longitudinal beam assembly and vehicle. BACKGROUND

[0002] The front longitudinal beam of existing vehicle is usually connected with the longitudinal beam of front floor through front machine cabin, and the force transmission path is formed by connecting the longitudinal beam with sill connecting plate. The collision force is guided from the front part of vehicle body to the rear part by front longitudinal beam and other components, so as to reduce the deformation of passenger compartment.

[0003] However, the force transmission path is relatively single in this scheme, and the front wall bottom plate is prone to deformation due to bearing excessive stress when the vehicle encounters frontal collision, which not only affects the integrity of vehicle body structure, but also makes it difficult to ensure the requirements of collision safety. To meet the collision safety standards, the existing vehicle enhances its anti-collision ability by improving the strength of longitudinal beam, so that the longitudinal beam structure is more complex, and the manufacturing cost and process complexity are increased. SUMMARY

[0004] The utility model aims at providing a kind of front longitudinal beam assembly, which can form multiple force transmission paths during collision and ensure the strength and stability of vehicle body.

[0005] To achieve the above-mentioned purpose, the utility model provides a kind of front longitudinal beam assembly, which comprises a rear section of front longitudinal beam and a subframe mounting plate. The subframe mounting plate is provided with a front connecting part and a side connecting part. The front connecting part is fixedly connected to the inner side of the rear section of front longitudinal beam along the vehicle width direction. The side connecting part is used for fixedly connecting with a middle channel reinforcement plate.

[0006] Optionally, the subframe mounting plate comprises a top plate and two support plates respectively arranged on the opposite sides of the top plate.

[0007] Optionally, the front connecting part comprises a first longitudinal beam connecting flange, a second longitudinal beam connecting flange and a third longitudinal beam connecting flange. The first longitudinal beam connecting flange, the second longitudinal beam connecting flange and the third longitudinal beam connecting flange are respectively formed by bending and extending from one end of the top plate and the two support plates of the subframe mounting plate close to the rear section of front longitudinal beam.

[0008] Optionally, the side connecting part comprises a side flange and a middle channel connecting flange. The side flange is formed by bending and extending from one end of the two support plates of the subframe mounting plate away from the top plate. The middle channel connecting flange is formed by protruding from one end of the side flange away from the support plate.

[0009] The front longitudinal beam assembly further comprises a reinforcing part fixedly connected with the auxiliary frame mounting plate, the reinforcing part comprises a reinforcing plate, and a first turn plate and a second turn plate arranged at opposite ends of the reinforcing plate, the first turn plate is fixedly connected with the top plate of the auxiliary frame mounting plate, and the second turn plate is used for being fixedly connected with the vehicle body.

[0010] Optionally, the reinforcing part further comprises a third turn plate, the third turn plate is arranged on one side of the reinforcing plate close to the supporting plate and is fixedly connected with the supporting plate.

[0011] Optionally, the auxiliary frame mounting plate comprises a mounting plate front section and a mounting plate rear section, the mounting plate rear section extends along the front-rear direction of the vehicle and has a spacing between the mounting plate rear section and the rear section of the front longitudinal beam, and the mounting plate rear section is bent and extended from the front end thereof to the direction close to the rear section of the front longitudinal beam to form the mounting plate front section.

[0012] The utility model also proposes a vehicle, including vehicle body, the vehicle body includes vertical board subassembly, middle channel reinforcing plate and above-mentioned front longitudinal beam assembly.

[0013] Optionally, the front longitudinal beam assembly further comprises a front longitudinal beam connecting plate fixedly connected between the vertical board subassembly and the rear section of the front longitudinal beam.

[0014] Further, the number of the front longitudinal beam assembly is two, the two rear sections of the front longitudinal beam are arranged at intervals along the width direction of the vehicle, the middle channel reinforcing plate is located between the two rear sections of the front longitudinal beam, and the two auxiliary frame mounting plates are fixedly connected to the two sides of the middle channel reinforcing plate along the width direction of the vehicle and are fixedly connected with the rear sections of the front longitudinal beam respectively.

[0015] The technical scheme of the utility model has the following beneficial effects compared with the prior art: the front longitudinal beam assembly of the utility model forms a plurality of force transmission paths through the auxiliary frame mounting plate, can effectively disperse the collision energy, ensures the strength and stability of the vehicle body, thereby improves the collision safety, and the structure is simple. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be briefly introduced the drawings needed to be used in the embodiments, it should be understood that the following drawings only show some embodiments of the utility model, therefore should not be regarded as the limitation to the scope, for the ordinary skilled person in the art, under the premise of not paying the creative labor, can also obtain other related drawings according to these drawings.

[0017] Figure 1 It is the structure schematic view of the vehicle body of the utility model.

[0018] Figure 2 It is the structure schematic view of another view of the vehicle body of the utility model.

[0019] Figure 3The utility model discloses a subframe mounting plate and reinforcing piece structure schematic view.

[0020] Figure 4 The utility model discloses a front longitudinal beam assembly and middle channel reinforcing plate partial schematic view.

[0021] In the drawing,

[0022] 1-front longitudinal beam assembly;11-front longitudinal beam rear section;111-front longitudinal beam rear section inner plate;112-front longitudinal beam rear section outer plate;113-first longitudinal beam section;114-second longitudinal beam section;115-third longitudinal beam section;12-front longitudinal beam front section;121-first front longitudinal beam front section inner plate;122-second front longitudinal beam front section inner plate;13-front longitudinal beam connecting plate;

[0023] 2-subframe mounting plate;21-front connecting portion;211-first longitudinal beam connecting flange;212-second longitudinal beam connecting flange;213-third longitudinal beam connecting flange;22-side connecting portion;221-side flange;222-middle channel connecting flange;23-top plate;24-supporting plate;25-mounting plate front section;26-mounting plate rear section;

[0024] 3-reinforcing piece;31-reinforcing plate;32-first flange plate;33-second flange plate;34-third flange plate;

[0025] 4-middle channel reinforcing plate;5-vertical plate assembly;6-front wall assembly;61-front wall cross beam;62-front wall lower plate. DETAILED DESCRIPTION

[0026] The specific embodiments of the utility model will be described in detail below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the description of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0027] The orientation or position relation indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer" and the like is the orientation or position relation shown in the drawing or the orientation or position relation of the utility model product when it is usually placed, which is only for the convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0028] The terms "first", "second" and the like only distinguish the attributes of similar elements, and do not indicate or imply relative importance or a particular order.

[0029] The terms "comprise", "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 can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0030] Referring to Figure 1 The utility model provides a kind of vehicle, including vehicle body, vehicle body includes front longitudinal beam assembly 1, front wall assembly 6, vertical plate assembly 5 and middle channel reinforcing plate 4.

[0031] Please combine Figure 2 In some embodiments, the number of front longitudinal beam assembly 1 and vertical plate assembly 5 is two, and the front longitudinal beam assembly 1 includes front longitudinal beam front section 12, front longitudinal beam rear section 11 and auxiliary frame mounting plate 2. Two front longitudinal beam front sections 12 are arranged along the width direction of the vehicle and extend along the front-rear direction of the vehicle. Two front longitudinal beam rear sections 11 are arranged along the width direction of the vehicle. The front longitudinal beam front section 12 is fixedly connected to the front longitudinal beam rear section 11 by welding or riveting. The middle channel reinforcing plate 4 is located between the two front longitudinal beam rear sections 11. Two auxiliary frame mounting plates 2 are fixedly connected to the two sides of the middle channel reinforcing plate 4 along the width direction of the vehicle by welding and are fixedly connected to the front longitudinal beam rear section 11. Two vertical plate assemblies 5 extend along the height direction of the vehicle, and the two vertical plate assemblies 5 are located outside the two front longitudinal beam rear sections 11.

[0032] Further, the front wall assembly 6 includes a front wall cross beam 61 and a front wall lower plate 62. The front wall cross beam 61 is fixedly connected between the two front longitudinal beam rear sections 11. The middle channel reinforcing plate 4 is fixedly connected to the front wall cross beam 61 by welding. The middle channel reinforcing plate 4 is connected to the rear of the front wall cross beam 61 along the front-rear direction of the vehicle. The front wall lower plate 62 is fixedly connected between the front longitudinal beam rear section 11 and the vertical plate assembly 5. The auxiliary frame mounting plate 2 is fixedly connected between the front longitudinal beam rear section 11 and the middle channel reinforcing plate 4.

[0033] When the vehicle body is subjected to a collision, the collision force acting on the front longitudinal beam front section 12 is transmitted to the front longitudinal beam rear section 11 and then to the auxiliary frame mounting plate 2 through the front longitudinal beam rear section 11. In addition, the collision force is transmitted to the middle channel reinforcing plate 4 through the auxiliary frame mounting plate 2, thereby forming multiple force transmission paths. This is conducive to transmitting the load and effectively dispersing the energy generated by the collision. Moreover, the strength and stability of the vehicle body can be improved through the auxiliary frame mounting structure during the collision process.

[0034] In some embodiments, the front longitudinal beam front section 12 includes a first front longitudinal beam front section inner plate 121 and a second front longitudinal beam front section inner plate 122. The second front longitudinal beam inner plate 122 is fixedly connected between the first front longitudinal beam inner plate 121 and the vertical plate assembly 5.

[0035] Furthermore, the rear section 11 of the front longitudinal beam includes an inner panel 111 and an outer panel 112 of the rear section of the front longitudinal beam. The inner panel 111 of the rear section of the front longitudinal beam is fixedly connected to the inner panel 121 of the front section of the first front longitudinal beam by welding. In one example, the inner panel 111 and the outer panel 112 of the rear section of the front longitudinal beam enclose a "ji" - shaped structure, that is, the cross - section of the rear section 11 of the front longitudinal beam is approximately "ji" - shaped. The inner panel 111 of the rear section of the front longitudinal beam is fixedly connected to the outer panel 112 of the front longitudinal beam by welding. Understandably, the inner panel 111 of the rear section of the front longitudinal beam can also be integrally formed with the outer panel 112 of the rear section of the front longitudinal beam.

[0036] Please continue to refer to Figure 1 , in some embodiments, the rear section 11 of the front longitudinal beam includes a first longitudinal beam section 113, a second longitudinal beam section 114, and a third longitudinal beam section 115. The first longitudinal beam section 113 extends obliquely downward in the vehicle height direction, the second longitudinal beam section 114 extends obliquely outward in the vehicle width direction, and the third longitudinal beam section 115 extends in the vehicle front - rear direction. Understandably, the first longitudinal beam section 113 and the second longitudinal beam section 114 can also extend in the vehicle front - rear direction, that is, the projections of the first longitudinal beam section 113, the second longitudinal beam section 114, and the third longitudinal beam section 115 in the vehicle height direction are approximately collinear.

[0037] In one example, the front longitudinal beam assembly 1 further includes a front longitudinal beam connecting plate 13. Specifically, there is a spacing between the rear section 11 of the front longitudinal beam and the vertical plate assembly 5. The front longitudinal beam connecting plate 13 is fixedly connected between the rear section 11 of the front longitudinal beam and the vertical plate assembly 5. And the front longitudinal beam connecting plate 13 is fixedly connected to the lower front panel 62. By the front longitudinal beam connecting plate 13 and the sub - frame mounting plate 2 being respectively fixedly connected to the opposite sides of the rear section 11 of the front longitudinal beam, multiple force - transmission paths are formed, further effectively dispersing the collision energy received by the front section 12 of the front longitudinal beam and enhancing the strength and stability of the vehicle body.

[0038] Please refer to Figure 3 , in one example, the sub - frame mounting plate 2 includes a front mounting plate section 25 and a rear mounting plate section 26. The front mounting plate section 25 and the rear mounting plate section 26 are integrally formed. Specifically, the rear mounting plate section 26 extends approximately in the vehicle front - rear direction and has a spacing from the rear section 11 of the front longitudinal beam. The rear mounting plate section 26 extends and bends towards the rear section 11 of the front longitudinal beam from its front end to form the front mounting plate section 25.

[0039] Specifically, the sub - frame mounting plate 2 includes a top plate 23 and two support plates 24 respectively connected to the opposite sides of the top plate 23. The top plate 23 and the two support plates 24 enclose a "U" - shaped structure, that is, the cross - section of the sub - frame mounting plate 2 is approximately "U" - shaped, ensuring the structural strength of the sub - frame mounting plate 2. The top plate 23 and the support plates 24 are integrally formed, or the top plate 23 is fixedly connected to the support plates 24 by welding or riveting, etc.

[0040] Please combine Figure 4 In one example, the subframe mounting plate 2 has a front connecting portion 21 and a side connecting portion 22. The front connecting portion 21 is fixedly connected to the inner side of the rear section 11 of the front longitudinal beam along the vehicle width direction, and the side connecting portion 22 is used to fixably connect to the center channel reinforcement plate 4. Specifically, the front connecting portion 21 and the side connecting portion 22 are fixedly connected to the rear section 11 of the front longitudinal beam and the center channel reinforcement plate 4 by welding, riveting, or fastener connection, respectively.

[0041] Optionally, the front connecting portion 21 includes a first longitudinal beam connecting flange 211, a second longitudinal beam connecting flange 212, and a third longitudinal beam connecting flange 213. The subframe mounting plate 2 bends and extends from its top plate 23 and one end of the two support plates 24 near the rear section 11 of the front longitudinal beam to form the first longitudinal beam connecting flange 211, the second longitudinal beam connecting flange 212, and the third longitudinal beam connecting flange 213. The first longitudinal beam connecting flange 211, the second longitudinal beam connecting flange 212, and the third longitudinal beam connecting flange 213 are fixedly connected to the rear section 11 of the front longitudinal beam by welding.

[0042] The side connection portion 22 includes a side flange 221 and a center channel connection flange 222. The two support plates 24 of the subframe mounting plate 2 are bent and extended from their ends away from the top plate 23 to form the side flange 221. The side flange 221 protrudes from its end away from the support plate 24 to form a plurality of center channel connection flanges 222. In one example, there are three center channel connection flanges 222, and the three center channel connection flanges 222 are fixedly connected to the center channel reinforcing plate 4 by welding.

[0043] Please continue reading. Figure 3 In one example, the front longitudinal beam assembly 1 of this utility model includes a reinforcing member 3, which is fixedly connected to the subframe mounting plate 2 by welding or riveting, thereby improving the structural strength of the area of ​​the subframe mounting plate 2 connected to the battery pack. Through holes are respectively provided on the subframe mounting plate 2 and the reinforcing member 3 for fasteners to pass through, and the battery pack is fixed to the subframe mounting plate 2 by the fasteners. Specifically, the reinforcing member 3 includes a reinforcing plate 31, and a first folding plate 32 and a second folding plate 33 located at opposite ends of the reinforcing plate 31. The first folding plate 32 is fixedly connected to the top plate 23 of the subframe mounting plate 2, and the second folding plate 33 is fixedly connected to the vehicle body. Optionally, the reinforcing member 3 also includes a third folding plate 34, which is located on the side of the reinforcing plate 31 near the support plate 24 and fixedly connected to the support plate 24, further improving the structural strength.

[0044] During a collision, the impact force on the front section 12 of the front longitudinal beam is transmitted to the rear section 11, forming a first force transmission path. A second and third force transmission path are formed through the front longitudinal beam connecting plate 13 and the subframe mounting plate 2, respectively. The impact force is then transmitted to the central channel reinforcement plate 4 via the side connecting portion 22 of the subframe mounting plate 2, forming a fourth force transmission path, thereby effectively dispersing the energy generated by the collision. Furthermore, the subframe mounting plate 2 and the front longitudinal beam connecting plate 13 are respectively positioned on opposite sides of the rear section 11 of the front longitudinal beam, which helps improve the structural strength and stability of the vehicle body and results in a simple structure.

[0045] The above description is only a specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A front rail assembly, characterized by: The front longitudinal beam rear section (11) and the subframe mounting plate (2) are provided with a front connecting portion (21) and a side connecting portion (22), the front connecting portion (21) is fixedly connected to the inner side of the front longitudinal beam rear section (11) along the vehicle width direction, and the side connecting portion (22) is used for fixedly connecting with the middle tunnel reinforcement plate (4).

2. The front rail assembly of claim 1, wherein: The subframe mounting plate (2) comprises a top plate (23) and two support plates (24) respectively arranged on the opposite sides of the top plate (23).

3. The front rail assembly of claim 2, wherein: The front connecting portion (21) comprises a first longitudinal beam connecting flange (211), a second longitudinal beam connecting flange (212) and a third longitudinal beam connecting flange (213), and the subframe mounting plate (2) is bent and extended from one end of the top plate (23) and the two support plates (24) of the subframe mounting plate (2) close to the front longitudinal beam rear section (11) to form the first longitudinal beam connecting flange (211), the second longitudinal beam connecting flange (212) and the third longitudinal beam connecting flange (213).

4. The front rail assembly of claim 2, wherein: The side connecting portion (22) comprises a side flange (221) and a middle tunnel connecting flange (222), and the two support plates (24) of the subframe mounting plate (2) are bent and extended from one end of the two support plates (24) away from the top plate (23) to form the side flange (221), and the side flange (221) is protruded from one end of the side flange (221) away from the support plate (24) to form the middle tunnel connecting flange (222).

5. The front rail assembly of claim 2, wherein: The subframe mounting plate (2) comprises a mounting plate front section (25) and a mounting plate rear section (26), the mounting plate rear section (26) extends along the front-rear direction of the vehicle and has a spacing between the mounting plate rear section (26) and the front longitudinal beam rear section (11), and the mounting plate rear section (26) is bent and extended from the front end of the mounting plate rear section (26) to the direction close to the front longitudinal beam rear section (11) to form the mounting plate front section (25).

6. The front rail assembly of claim 5, wherein: The vehicle body comprises a vertical plate assembly (5), a middle tunnel reinforcement plate (4) and the front longitudinal beam assembly (1) of any one of claims 1-7.

7. The front rail assembly of claim 1, wherein: The front longitudinal beam assembly (1) further comprises a front longitudinal beam connecting plate (13), and the front longitudinal beam connecting plate (13) is fixedly connected between the vertical plate assembly (5) and the front longitudinal beam rear section (11).

8. A vehicle comprising a vehicle body, characterised in that: ​ 9. The vehicle of claim 8, characterized in that: ​ 10. The vehicle of claim 8, characterized in that: The number of the front longitudinal beam assemblies (1) is two, the two front longitudinal beam rear sections (11) are arranged in the width direction of the vehicle, the middle channel reinforcing plate (4) is located between the two front longitudinal beam rear sections (11), and the two auxiliary frame mounting plates (2) are respectively fixedly connected to the two sides of the middle channel reinforcing plate (4) in the width direction of the vehicle and are respectively fixedly connected with the front longitudinal beam rear sections (11).

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