Front longitudinal beam assembly and vehicle

Abstract

The utility model relates to a front longitudinal beam assembly and a vehicle, and relates to the technical field of vehicles. The front longitudinal beam assembly comprises a front longitudinal beam rear section, a front longitudinal beam front section and a front wall plate lower cross beam, a first connector, a second connector and a third connector are formed in the front longitudinal beam rear section, and the first connector, the second connector and the third connector are triangularly arranged at intervals. The first connector is connected with the front longitudinal beam front section, the second connector is connected with the front wall plate lower cross beam, and the third connector is used for being connected with a doorsill of a vehicle body. Therefore, connecting pieces from the front section of the front longitudinal beam to the doorsill can be reduced, so that the structure of the front longitudinal beam assembly is simplified.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to the technical field of automobile parts, and specifically to a front longitudinal beam assembly and a vehicle. BACKGROUND

[0002] The front longitudinal beam of a vehicle body is one of the key parts of a vehicle body and plays an important role in bearing and absorbing impact in the structure of the vehicle. When a collision occurs, the longitudinal beam is required to have good impact resistance and bending resistance.

[0003] In a traditional fuel vehicle, the longitudinal beam of the vehicle extends from front to back. When a front collision occurs, the collision force is transmitted to the rear of the vehicle body through the longitudinal beam and its extension. For a pure electric vehicle, the power battery is arranged below the floor, and the rear section of the longitudinal beam cannot extend backward. Therefore, the front collision force needs to be transmitted to the door sill.

[0004] At present, the rear section of the longitudinal beam of most domestic pure electric vehicles is based on the structure of a fuel vehicle. The extension section of the longitudinal beam in the power battery area is cut off, and the extension section of the longitudinal beam is connected to the door sill through a reinforcing member. The structure is complex. CONTENT OF THE INVENTION

[0005] The present application provides a front longitudinal beam assembly and a vehicle to at least solve the technical problem of a complex structure of a front longitudinal beam assembly in the related art. The technical solution of the present application is as follows:

[0006] According to a first aspect of the present application, a front longitudinal beam assembly is provided, comprising: a front longitudinal beam rear section, a front longitudinal beam front section, and a front wall plate lower cross beam. The front longitudinal beam rear section has a first interface, a second interface, and a third interface formed thereon. The first interface, the second interface, and the third interface are arranged in a triangular shape at intervals. The first interface is connected to the front longitudinal beam front section, the second interface is connected to the front wall plate lower cross beam, and the third interface is used to be connected to the door sill of the vehicle body.

[0007] According to the above technical means, when a vehicle has a high-speed front collision accident, the front longitudinal beam assembly can support the vehicle body. When a collision occurs, the front longitudinal beam front section will be impacted by external forces. Since the first interface of the front longitudinal beam rear section is connected to the front longitudinal beam front section, the front longitudinal beam front section can transmit the impact force to the front longitudinal beam rear section. Since the second interface of the front longitudinal beam rear section is connected to the front wall plate lower cross beam, and the third interface is used to be connected to the door sill of the vehicle body, the front longitudinal beam rear section can transmit the impact force to the other side of the vehicle body and the door sill to share the impact force at the impact point.

[0008] In this way, the impact force is transmitted from the front longitudinal beam front section to the door sill through the front longitudinal beam rear section, which can make the structure of the front longitudinal beam assembly simple compared to the prior art in which the force is transmitted to the door sill through the extension section and the reinforcing member. At the same time, since the number of components is reduced, the weight of the front longitudinal beam assembly can be reduced, the welding steps can be reduced, the process is simpler, and the integration is higher.

[0009] In a possible implementation, the rear section of the front longitudinal beam has a "Y" shape structure, and the first interface, the second interface and the third interface are arranged in the "Y" shape on the rear section of the front longitudinal beam. In this way, the rear section of the front longitudinal beam can adapt to the positions of various components, and the integration of the front longitudinal beam assembly can be enhanced.

[0010] According to the technical means, the rear section of the front longitudinal beam can adapt to the positions of various components, and the integration of the front longitudinal beam assembly can be enhanced.

[0011] In a possible implementation, the front longitudinal beam assembly further comprises a connecting piece, the rear section of the front longitudinal beam comprises a connecting portion formed between the first interface and the third interface, and the connecting piece is connected with the connecting portion and is further used to connect with the front section of the front longitudinal beam and the A pillar.

[0012] According to the technical means, the connecting piece can also be used to share the impact force received by the front longitudinal beam, and transmit the impact force from the front section of the front longitudinal beam and the rear section of the front longitudinal beam to the A pillar, so as to reduce the deformation and damage of the front longitudinal beam.

[0013] In a possible implementation, the rear section of the front longitudinal beam comprises a bottom wall and a first bending plate connected with the bottom wall, and the first bending plate can constitute at least part of the connecting portion.

[0014] According to the technical means, the connecting area between the connecting piece and the rear section of the front longitudinal beam is larger, so that the connection of the connecting piece is more reliable.

[0015] In a possible implementation, a first side wall connected with the bottom wall is formed between the first interface and the second interface, and a second side wall connected with the bottom wall is formed between the second interface and the third interface, and at least part of the first side wall, the second side wall and the connecting piece are located on the same side of the bottom wall.

[0016] According to the technical means, the first side wall, the second side wall and at least part of the connecting piece can form a cavity by surrounding the bottom wall, so that the strength and bending resistance of the front longitudinal beam assembly can be increased, the probability of bending deformation of the rear section of the front longitudinal beam can be reduced when the impact force is received, and a good supporting effect can be achieved to better protect the safety of members.

[0017] In a possible implementation, the first side wall is provided with a second bending plate bent away from the bottom wall.

[0018] According to the technical means, when the first side wall is connected with other components of the vehicle, the second bending plate can be connected, so that the contact area of the first side wall and the other components can be increased, and the connection is more reliable.

[0019] In a possible implementation, the second side wall is provided with a third bent plate bent towards the side away from the bottom wall.

[0020] According to the technical means, when the second side wall is connected with other components of the vehicle, the third bent plate can be connected, so that the contact area between the second side wall and the other components can be increased, and the connection is more reliable.

[0021] In a possible implementation, the connecting piece is provided with a reinforcing rib.

[0022] According to the technical means, the bending resistance of the connecting piece can be improved, so that the stability of the connecting piece in deformation under impact can be improved, and deformation is not easy to occur, thereby ensuring the safety of the people in the vehicle.

[0023] In a possible implementation, the second interface is provided with a first connecting hole, and the front wall plate lower cross beam is provided with a second connecting hole, and the first connecting hole and the second connecting hole can be connected by bolts.

[0024] According to the technical means, the connection between the rear section of the front longitudinal beam and the front wall plate lower cross beam can be further strengthened, so that the rear section of the front longitudinal beam and the front wall plate lower cross beam are prevented from being separated under vibration or impact.

[0025] According to the second aspect of the present application, a vehicle is provided, comprising the front longitudinal beam assembly.

[0026] It should be noted that the technical effects brought by the second aspect can be referred to the technical effects brought by the corresponding implementation modes of the first aspect, which will not be repeated here.

[0027] (1) Since the first interface of the rear section of the front longitudinal beam is connected with the front section of the front longitudinal beam, the front section of the front longitudinal beam can transmit the impact force to the rear section of the front longitudinal beam; since the second interface of the rear section of the front longitudinal beam is connected with the front wall plate lower cross beam, and the third interface is used to connect with the rocker of the vehicle body, the rear section of the front longitudinal beam can transmit the impact force to the other side of the vehicle body and the rocker to share the impact force at the impact position. In this way, the impact force is transmitted from the front section of the front longitudinal beam to the rocker through the rear section of the front longitudinal beam, which can make the front longitudinal beam assembly simple in structure compared with the prior art. At the same time, since the components are reduced, the weight of the front longitudinal beam assembly can be reduced, the welding steps can be reduced, the process is simpler, and the integration is higher.

[0028] (2) Since the rear section of the front longitudinal beam is in a "Y" shape structure, and the first interface, the second interface and the third interface are arranged in a "Y" shape on the rear section of the front longitudinal beam, the rear section of the front longitudinal beam can adapt to the positions of various components, so that the integration of the front longitudinal beam assembly can be improved.

[0029] (3) Since the front longitudinal beam assembly further comprises a connecting piece, the rear section of the front longitudinal beam comprises a connecting portion formed between the first interface and the third interface, the connecting piece is connected with the connecting portion, and the connecting piece is further used for connecting with the front section of the front longitudinal beam and the A column, so that the connecting piece can also share the impact force borne by the front longitudinal beam and transmit the impact force from the front section of the front longitudinal beam and the rear section of the front longitudinal beam to the A column, so as to reduce the deformation and damage of the front longitudinal beam.

[0030] (4) Since the rear section of the front longitudinal beam comprises a bottom wall and a first bending plate connected with the bottom wall, and the first bending plate can constitute at least part of the connecting portion, the connecting area between the connecting piece and the rear section of the front longitudinal beam can be larger, so that the connection of the connecting piece is more reliable.

[0031] (5) Since the first side wall connected with the bottom wall is formed between the first interface and the second interface, and the second side wall connected with the bottom wall is formed between the second interface and the third interface, at least part of the first side wall, the second side wall and the connecting piece are located on the same side of the bottom wall, so that the first side wall, the second side wall and at least part of the connecting piece can form a cavity by surrounding the bottom wall, the strength and bending resistance of the front longitudinal beam assembly can be increased, the probability of bending deformation of the rear section of the front longitudinal beam can be reduced when the impact force is borne, and a good supporting effect can be achieved to better protect the safety of the members.

[0032] (6) Since the first side wall is provided with a second bending plate bent away from the bottom wall, when the first side wall is connected with other components of the vehicle, the second bending plate can be connected, so that the contact area of the first side wall and the other components can be increased, and the connection is more reliable.

[0033] (7) Since the second side wall is provided with a third bending plate bent away from the bottom wall, when the second side wall is connected with other components of the vehicle, the third bending plate can be connected, so that the contact area of the second side wall and the other components can be increased, and the connection is more reliable.

[0034] (8) Since the connecting piece is provided with a reinforcing rib, the bending resistance of the connecting piece can be improved, so that the stability of the deformation of the connecting piece when impacted can be improved, deformation is not easy to occur, and the safety of the people in the vehicle can be ensured.

[0035] (9) Since the first connecting hole is arranged on the second interface, and the second connecting hole is arranged on the front wall plate lower cross beam, the first connecting hole and the second connecting hole can be connected by bolts, the connection between the rear section of the front longitudinal beam and the front wall plate lower cross beam can be further strengthened, and the rear section of the front longitudinal beam and the front wall plate lower cross beam can be prevented from being separated under vibration or impact. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1is a structural schematic view of a front longitudinal beam assembly according to an exemplary embodiment;

[0037] Figure 2 is a structural schematic view of a rear section of a front longitudinal beam according to an exemplary embodiment;

[0038] Figure 3 is a structural schematic view of an outer plate of a front longitudinal beam according to an exemplary embodiment.

[0039] Wherein, each number in the figure represents: 100-front longitudinal beam assembly;

[0040] 1-front section of front longitudinal beam; 1.1-inner plate of front longitudinal beam; 1.2-outer plate of front longitudinal beam; 1.21-guide structure;

[0041] 2-rear section of front longitudinal beam; 2.11-first interface; 2.12-second interface; 2.13-third interface; 2.2-connection part; 2.21-first bending plate; 2.22-second bending plate; 2.23-third bending plate; 2.3-bottom wall; 2.41-first side wall; 2.42-second side wall; 2.5-first connecting hole;

[0042] 3-front wall plate lower crossbeam; 3.1-second connecting hole;

[0043] 4-connection piece; 4.1-stiffener. DETAILED DESCRIPTION

[0044] In order for those skilled in the art to better understand the technical solutions of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings.

[0045] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0046] For the convenience of understanding, first, some terms or basic concepts of technology related to the embodiments of the present application are simply introduced and explained.

[0047] Longitudinal beam: The longitudinal beam is an important metal component on the automobile. In the automobile structure, the longitudinal beam is arranged along the vehicle axis, penetrates from the front to the rear, and is supported on the cross beam, which plays a load-bearing role for the vehicle body. The longitudinal beam usually includes a front longitudinal beam and a rear longitudinal beam.

[0048] Front longitudinal beam: The front longitudinal beam is one of the main load-bearing components arranged along the vehicle axis in the vehicle structure, which is located below the engine compartment at the front of the vehicle.

[0049] Rear longitudinal beam: The rear longitudinal beam is an important component supporting the trunk, which is located below the trunk at the rear of the vehicle and can be observed from both sides of the bottom of the spare tire compartment of the vehicle body.

[0050] With the increase in the number of automobile users and the acceleration of urbanization, the complex and variable urban road conditions require the anti-collision design to ensure the safety of the driver and passengers, which is an important part of the automobile structure design.

[0051] The front longitudinal beam of the vehicle body is one of the key parts of the vehicle body, which plays an important role in absorbing collision impact. When a collision occurs, the front longitudinal beam needs to have good impact resistance and bending resistance. In traditional fuel vehicles, the longitudinal beam extends from the front to the rear, and when a frontal collision occurs, the collision force can be transmitted to the rear of the vehicle body through the longitudinal beam.

[0052] However, the power battery is arranged below the floor of the pure electric vehicle, and the rear section of the front longitudinal beam cannot be extended backward. At present, the rear section of the front longitudinal beam of most domestic pure electric vehicles is based on the structure of fuel vehicles, and the longitudinal beam in the power battery area is cut off, and the extension section is connected to the rocker panel through a reinforcing member, which has a complex structure.

[0053] Based on this, the embodiment of the present application provides a front longitudinal beam assembly, which comprises a front longitudinal beam front section, a front longitudinal beam rear section and a front wall plate lower cross beam. The front longitudinal beam rear section is connected to the front longitudinal beam front section, the front wall plate lower cross beam and the rocker panel through a plurality of interfaces, so that the impact force during a collision can be transmitted to the cross beam and the rocker panel. The function of the extension section and the reinforcing member can be realized only through the front longitudinal beam rear section, and the structure is simple.

[0054] In order to facilitate understanding, the front longitudinal beam assembly provided by the present application is specifically introduced below in combination with the drawings.

[0055] Figure 1 is a structural schematic diagram of a front longitudinal beam assembly 100 according to an example embodiment, as shown in Figure 1 the front longitudinal beam assembly 100 comprises a front longitudinal beam rear section 2, a front longitudinal beam front section 1 and a front wall plate lower cross beam 3.

[0056] Figure 2 is a structural schematic diagram of a front longitudinal beam rear section 2 according to an example embodiment, as shown in Figure 2As shown, the rear section 2 of the front longitudinal beam has a first interface 2.11, a second interface 2.12 and a third interface 2.13, which are arranged in a triangular interval.

[0057] like Figure 1 and Figure 2 As shown, the first interface 2.11 is connected to the front section 1 of the front longitudinal beam, the second interface 2.12 is connected to the lower crossbeam 3 of the front wall panel, and the third interface 2.13 is used to connect to the door sill of the vehicle body.

[0058] In this way, when a vehicle is involved in a high-speed frontal collision, the front longitudinal beam assembly 100 can support the vehicle body. When a collision occurs, the front section 1 of the front longitudinal beam will be subjected to the impact force from the outside. Since the first interface 2.11 of the rear section 2 of the front longitudinal beam is connected to the front section 1, the front section 1 can transfer the impact force to the rear section 2. Since the second interface 2.12 of the rear section 2 of the front longitudinal beam is connected to the lower crossbeam 3 of the front wall panel, and the third interface 2.13 is used to connect to the door sill of the vehicle body, the rear section 2 of the front longitudinal beam can transfer the impact force to the other side of the vehicle body and the door sill to share the impact force at the point of impact.

[0059] In this way, the impact force can be transmitted from the front section 1 of the front longitudinal beam to the door sill through the rear section 2 of the front longitudinal beam. Compared with the prior art, which transmits the force to the door sill through extensions and reinforcements, the structure of the front longitudinal beam assembly 100 can be simplified. At the same time, due to the reduction of components, the weight of the front longitudinal beam assembly 100 can be reduced, welding steps can be reduced, the process is simpler, and the integration is higher.

[0060] In some embodiments, for ease of integration, such as Figure 2 As shown, the rear section 2 of the front longitudinal beam has a "Y"-shaped structure, and the first interface 2.11, the second interface 2.12, and the third interface 2.13 are arranged in a "Y" shape on the rear section 2 of the front longitudinal beam. In this way, the rear section 2 of the front longitudinal beam can adapt to the positions of various components, which can enhance the integration of the front longitudinal beam assembly 100.

[0061] In some embodiments, such as Figure 1 As shown, the front longitudinal beam assembly 100 may also include a connector 4. The rear section 2 of the front longitudinal beam includes a connecting portion 2.2 formed between the first interface 2.11 and the third interface 2.13. The connector 4 is connected to the connecting portion 2.2, and the connector 4 is also used to connect to the front section 1 of the front longitudinal beam and the A-pillar.

[0062] In this way, the connector 4 can also be used to share the impact force on the front longitudinal beam and transfer the impact force from the front section 1 and the rear section 2 of the front longitudinal beam to the A-pillar, so as to reduce the deformation and damage of the front longitudinal beam.

[0063] In some embodiments, in order to make the connection between the rear section 2 of the front longitudinal beam and the connecting piece 4 more stable, as shown in Figure 1 and Figure 2 The rear section 2 of the front longitudinal beam can include a bottom wall 2.3 and a first bent plate 2.21 connected with the bottom wall 2.3, and the first bent plate 2.21 can constitute at least part of the connecting portion 2.2. In this way, the connection area between the connecting piece 4 and the rear section 2 of the front longitudinal beam is larger, so that the connection of the connecting piece 4 is more reliable.

[0064] In some embodiments, a first side wall 2.41 connected with the bottom wall 2.3 is formed between the first interface 2.11 and the second interface 2.12, and a second side wall 2.42 connected with the bottom wall 2.3 is formed between the second interface 2.12 and the third interface 2.13. At least part of the first side wall 2.41, the second side wall 2.42 and the connecting piece 4 are located on the same side of the bottom wall 2.3.

[0065] In this way, the first side wall 2.41, the second side wall 2.42 and at least part of the connecting piece 4 can form a cavity by enclosing the bottom wall 2.3. In this way, the strength and bending resistance of the front longitudinal beam assembly 100 can be increased, and the probability of deformation of the rear section 2 of the front longitudinal beam can be reduced when subjected to impact force, thereby providing good support and better protecting the safety of the members.

[0066] In some embodiments, the first side wall 2.41 is provided with a second bent plate 2.22 bent away from the side of the bottom wall 2.3. In this way, when the first side wall 2.41 is connected with other components of the vehicle, the second bent plate 2.22 can be connected, thereby increasing the contact area of the first side wall 2.41 with other components and making the connection more reliable.

[0067] In some embodiments, the second side wall 2.42 is provided with a third bent plate 2.23 bent away from the side of the bottom wall 2.3. In this way, when the second side wall 2.42 is connected with other components of the vehicle, the third bent plate 2.23 can be connected, thereby increasing the contact area of the second side wall 2.42 with other components and making the connection more reliable.

[0068] In some embodiments, the bottom wall 2.3, the first side wall 2.41, the second side wall 2.42, the first bending plate 2.21, the second bending plate 2.22 and the third bending plate 2.23 are all integral structures. For example, the bottom wall 2.3, the first side wall 2.41, the second side wall 2.42, the first bending plate 2.21, the second bending plate 2.22 and the third bending plate 2.23 are formed by stamping. In this way, the number of parts of the rear section 2 of the front longitudinal beam can be reduced, thereby simplifying the manufacturing process of the rear section 2 of the front longitudinal beam, reducing the connection structure, and making the manufacturing process simpler.

[0069] In some embodiments, in order to adapt to the shape of the A-pillar, the connection between the A-pillar and the rear section 2 of the front longitudinal beam is more closely, as shown in the figure, the connecting piece 4 is arranged in an arc shape. Figure 1

[0070] In some embodiments, since the arc shape is easy to bend and deform, the connecting piece 4 is provided with a reinforcing rib 4.1, which can improve the bending resistance of the connecting piece 4, thereby improving the stability of the connecting piece 4 when subjected to impact, and preventing deformation, thereby ensuring the safety of the passengers in the vehicle.

[0071] In some embodiments, the reinforcing rib 4.1 can be provided as at least one, for example, one, two, three or four, which can be selected according to actual conditions, and the present application does not make further limitations. In this way, the bending resistance of the connecting piece 4 can be further ensured, and the safety of the front longitudinal beam assembly 100 can be improved.

[0072] In some embodiments, the front section 1 of the front longitudinal beam, the rear section 2 of the front longitudinal beam, the connecting piece 4 and the front wall lower cross beam 3 are connected by welding points. In this way, the connection of the front longitudinal beam assembly 100 can be more firm, and deformation or separation is not easy to occur.

[0073] In some embodiments, the first connecting hole 2.5 is arranged on the second interface 2.12, the second connecting hole 3.1 is arranged on the front wall lower cross beam 3, and the first connecting hole 2.5 and the second connecting hole 3.1 can be connected by bolts. In this way, the connection between the rear section 2 of the front longitudinal beam and the front wall lower cross beam 3 can be further strengthened, and the rear section 2 of the front longitudinal beam and the front wall lower cross beam 3 can be prevented from being separated under vibration or impact.

[0074] In some embodiments, the first connecting hole 2.5 and the second connecting hole 3.1 can be provided as a plurality of, respectively, and the plurality of first connecting holes 2.5 and the second connecting holes 3.1 are corresponding, and are connected by bolts. For example, 2, 3 or 4 can be provided, and the present application does not make further limitations. In this way, the reliability of the connection between the rear section 2 of the front longitudinal beam and the front wall lower cross beam 3 can be further improved, thereby improving the safety performance of the front longitudinal beam assembly 100.

[0075] ​In some embodiments, the front longitudinal beam front section 1 can include a front longitudinal beam inner plate 1.1 and a front longitudinal beam outer plate 1.2, the front longitudinal beam inner plate 1.1 can be in a "H" shape structure, including an upper inner plate wall, a side inner plate wall and a lower inner plate wall, the front longitudinal beam outer plate 1.2 can be in a flat plate structure, and the front longitudinal beam inner plate 1.1 can be buckled with the front longitudinal beam outer plate 1.2. In this way, the front longitudinal beam front section 1 can form a cavity, thereby improving the strength of the front longitudinal beam front section 1, and the front longitudinal beam front section 1 is not easy to deform when the vehicle is in a medium or low speed collision, thereby ensuring the safety of the passengers in the vehicle.

[0076] In some embodiments, the upper inner plate wall and the lower inner plate wall are provided with bent flanges, and the front longitudinal beam outer plate 1.2 is connected with the bent flanges of the inner plate by welding. In this way, the contact area of the front longitudinal beam inner plate 1.1 and the front longitudinal beam outer plate 1.2 can be increased, thereby increasing the connection strength of the front longitudinal beam inner plate 1.1 and the front longitudinal beam outer plate 1.2 and enhancing the stability of the front longitudinal beam front section 1.

[0077] Figure 3 FIG. 1 is a structural schematic diagram of a front longitudinal beam outer plate 1.2 according to an exemplary embodiment, as shown in some embodiments, a guide structure 1.21 is arranged on the front longitudinal beam outer plate 1.2, the guide structure 1.21 is an inwardly recessed arc surface, in this way, when the vehicle is subjected to a high speed collision, the guide structure 1.21 can be bent and deformed to absorb the collision energy, thereby reducing the impact force transmitted to the vehicle cabin and protecting the safety of the passengers in the vehicle. Figure 3

[0078] In some embodiments, the guide structure 1.21 can be arranged in multiple, in this way, the energy absorption effect of the front longitudinal beam front section 1 can be further enhanced, and the safety performance of the front longitudinal beam assembly 100 can be improved.

[0079] The embodiments of the present application also provide a vehicle including the above-mentioned front longitudinal beam assembly 100. When the vehicle is in a medium or low speed collision, the front longitudinal beam front section 1 is not easy to deform due to the cavity structure, and the safety of the passengers in the vehicle can be ensured; when a high speed collision occurs, the front longitudinal beam front section 1 can be bent and deformed due to the guide structure 1.21, thereby absorbing the collision energy and transmitting the impact force to the front longitudinal beam rear section 2, and the front longitudinal beam rear section 2 has a certain strength and bending resistance, and can play a supporting role and transmit the impact force to the rocker and the A-pillar, thereby protecting the integrity of the passenger compartment.

[0080] The above is only a specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any change or replacement within the technical scope disclosed in the present application should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.​

Claims

1. A front rail assembly, characterized by, The front longitudinal beam rear section (2) is provided with a first interface, a second interface (2.12) and a third interface (2.13) in a triangular arrangement, the first interface is connected with the front longitudinal beam front section (1), the second interface (2.12) is connected with the front wall plate lower cross beam (3), and the third interface (2.13) is used for being connected with a rocker of a vehicle body.

2. The front rail assembly of claim 1, wherein, The front longitudinal beam rear section (2) is provided with a first interface, a second interface (2.12) and a third interface (2.13) in a triangular arrangement, the first interface is connected with the front longitudinal beam front section (1), the second interface (2.12) is connected with the front wall plate lower cross beam (3), and the third interface (2.13) is used for being connected with a rocker of a vehicle body.

3. The front rail assembly of claim 1, wherein, The front longitudinal beam rear section (2) is provided with a first interface, a second interface (2.12) and a third interface (2.13) in a triangular arrangement, the first interface is connected with the front longitudinal beam front section (1), the second interface (2.12) is connected with the front wall plate lower cross beam (3), and the third interface (2.13) is used for being connected with a rocker of a vehicle body.

4. The front rail assembly of claim 3, wherein, The front longitudinal beam rear section (2) is provided with a first interface, a second interface (2.12) and a third interface (2.13) in a triangular arrangement, the first interface is connected with the front longitudinal beam front section (1), the second interface (2.12) is connected with the front wall plate lower cross beam (3), and the third interface (2.13) is used for being connected with a rocker of a vehicle body.

5. The front rail assembly of claim 4, wherein, The first interface and the second interface (2.12) are formed with a first side wall (2.41) connected with the bottom wall (2.3), and the second interface (2.12) and the third interface (2.13) are formed with a second side wall (2.42) connected with the bottom wall (2.3), and at least part of the first side wall (2.41), the second side wall (2.42) and the connecting piece (4) are located on the same side of the bottom wall (2.3).

6. The front rail assembly of claim 5, wherein, The first side wall (2.41) is provided with a second bending plate (2.22) bent to a side away from the bottom wall (2.3).

7. The front rail assembly of claim 5, wherein, The second side wall (2.42) is provided with a third bending plate (2.23) bent to a side away from the bottom wall (2.3).

8. The front rail assembly of claim 3, wherein, The connecting piece (4) is provided with a reinforcing rib (4.1).

9. The front rail assembly of claim 1, wherein, The second interface (2.12) is provided with a first connecting hole (2.5), and the front wall plate lower cross beam (3) is provided with a second connecting hole (3.1), and the first connecting hole (2.5) and the second connecting hole (3.1) are connected by bolts.

10. A vehicle characterized by comprising: The front longitudinal beam assembly comprises the front longitudinal beam assembly according to any one of claims 1-9.

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