Front lower component of vehicle and vehicle

Abstract

The present application provides a front lower assembly for a vehicle and the vehicle. The front lower assembly includes a front lower panel assembly, a left longitudinal beam connector, and a right longitudinal beam connector. The front lower panel assembly is provided with a first sealing surface. The left longitudinal beam connector is connected to the left side of the front lower panel assembly and is provided with a left sealing surface. The right longitudinal beam connector is connected to the right side of the front lower panel assembly and is provided with a right sealing surface. The left and right sealing surfaces are arranged on the same side as the first sealing surface. The first, left, and right sealing surfaces serve as side walls of the battery compartment and are connected to the bottom plate of the battery compartment. The front lower assembly provided by the present application can increase the usable space within the battery compartment.

Description

Technical Field

[0001] The present application relates to the field of automobile technology, and in particular to a front lower assembly of a vehicle and a vehicle. Background Art

[0002] With the continuous development of new energy vehicles, people's requirements for driving range are also increasing. When the energy density of the battery cell itself is limited, how to increase the battery layout space has become a technical problem that needs to be solved urgently. Summary of the Invention

[0003] The present application provides a front lower assembly of a vehicle and a vehicle, which can increase the usable space inside a battery box.

[0004] In order to solve the above technical problems, a technical solution adopted in the present application is: to provide a front lower panel assembly of a vehicle, which includes a front lower panel assembly, a left longitudinal beam connecting member and a right longitudinal beam connecting member, and the front lower panel assembly is provided with a first sealing surface; the left longitudinal beam connecting member is connected to the left side of the front lower panel assembly, and the left longitudinal beam connecting member is provided with a left sealing surface; the right longitudinal beam connecting member is connected to the right side of the front lower panel assembly, and the right longitudinal beam connecting member is provided with a right sealing surface, and the left sealing surface and the right sealing surface are arranged on the same side as the first sealing surface; wherein the first sealing surface, the left sealing surface and the right sealing surface are connected to the bottom plate of the battery box as the side walls of the battery box.

[0005] Among them, the front panel lower panel assembly includes a first front panel cross beam and a second front panel cross beam, the first front panel cross beam includes a bottom surface, the bottom surface serves as a first sealing surface, and the left and right sides of the first front panel cross beam are respectively connected to the upper left part of the left longitudinal beam connector and the upper right part of the right longitudinal beam connector; the second front panel cross beam is connected to the side of the first front panel cross beam away from the battery box body, and the left and right sides of the second front panel cross beam are respectively connected to the upper left part and the upper right part.

[0006] Among them, the front lower panel assembly also includes a front lower panel, which is arranged on the rear side of the first front cross beam and the second front cross beam, and is respectively connected to the left longitudinal beam connector and the right longitudinal beam connector; wherein the front lower panel and the first front cross beam and the second front cross beam form a sealed cavity.

[0007] Among them, the left longitudinal beam connecting member is provided with a first extension portion extending toward the rear along the front-to-back direction, and the first extension portion divides the left longitudinal beam connecting member into a left upper portion and a left lower portion of the left longitudinal beam connecting member; the right longitudinal beam connecting member is provided with a second extension portion extending toward the rear along the front-to-back direction, and the second extension portion divides the right longitudinal beam connecting member into a right upper portion and a right lower portion of the right longitudinal beam connecting member; wherein, the bottom of the left lower portion serves as a left sealing surface, and the bottom of the right lower portion serves as a right sealing surface.

[0008] Among them, a first reinforcing rib is provided between the lower left part and the upper left part and the first extension part; and a second reinforcing rib is provided between the lower right part and the upper right part and the second extension part.

[0009] The left longitudinal beam connecting piece is integrally formed with the first reinforcing rib and the first extension portion; the right longitudinal beam connecting piece is integrally formed with the second reinforcing rib and the second extension portion.

[0010] Among them, the left longitudinal beam connecting part is the first cast aluminum part; the right longitudinal beam connecting part is the second cast aluminum part.

[0011] Among them, the front lower assembly also includes a steering box, which is located on the upper left side of the front lower panel assembly and is connected to the left longitudinal beam connector and the front lower panel assembly for installing the vehicle's steering column.

[0012] Among them, the steering box includes a first shell and a second shell, the first shell is respectively connected to the left longitudinal beam connecting member and the front lower plate assembly; the second shell is respectively connected to the first shell, the left longitudinal beam connecting member and the front lower plate assembly.

[0013] In order to solve the above technical problems, another technical solution adopted in the present application is: providing a vehicle, which includes the above front lower panel assembly.

[0014] The beneficial effects of the present application are as follows: the front lower assembly provided by the present application is provided with a front lower panel assembly, a left longitudinal beam connector, and a right longitudinal beam connector, wherein the left longitudinal beam connector is connected to the left side of the front lower panel assembly, the right longitudinal beam connector is connected to the right side of the front lower panel assembly, and the left sealing surface of the left longitudinal beam connector and the right sealing surface of the right longitudinal beam connector are provided on the same side as the first sealing surface of the front lower panel assembly, and the left sealing surface, the right sealing surface, and the first sealing surface serve as the side walls of the battery box and are connected to the bottom plate of the battery box. By the above-mentioned method, an integrated design of the vehicle body and the battery box can be realized, so that the left longitudinal beam connector, the right longitudinal beam connector, and the front lower panel assembly act as the upper cover of the traditional battery box, and the vehicle body skeleton structure acts as the upper cover of the battery box, and is coupled with the battery box, thereby increasing the usable space inside the battery box. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive work, among which:

[0016] Figure 1 This is a structural schematic diagram of an embodiment of a front lower panel assembly of a vehicle provided by the present application;

[0017] Figure 2 yes Figure 1 A schematic structural diagram of an embodiment of a front lower panel assembly in the embodiment;

[0018] Figure 3 yes Figure 2 A structural schematic diagram of another embodiment of the front lower panel assembly in the embodiment;

[0019] Figure 4 yes Figure 1 A schematic structural diagram of an embodiment of a left longitudinal beam connecting member;

[0020] Figure 5 yes Figure 4 A schematic rear view of the structure of the left longitudinal beam connecting member in the embodiment;

[0021] Figure 6 yes Figure 1 A structural diagram of an embodiment of a steering box in the embodiment;

[0022] Figure 7 This is a schematic exploded structural diagram of another embodiment of a front lower assembly of a vehicle provided by the present application;

[0023] Figure 8 It is a structural schematic diagram of an embodiment of a vehicle provided by this application. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0025] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0026] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0027] The present application provides a front lower assembly of a vehicle. Through the design of an integrated structure of the vehicle body and battery pack, the traditional battery box upper cover can be eliminated, that is, the front lower assembly is connected to the battery box, and the vehicle body frame structure is utilized as the battery box upper cover, and a coupling design is performed with the battery pack lower box, so that the position occupied by the traditional battery box upper cover is planned as the internal space of the battery box, thereby effectively increasing the usable space inside the battery box.

[0028] See Figure 1 , Figure 1 : is a structural diagram of an embodiment of a front lower panel assembly of a vehicle provided by the present application, such as Figure 1 As shown, the front lower panel assembly 10 includes a front lower panel assembly 110, a left longitudinal beam connector 120 and a right longitudinal beam connector 130, the front lower panel assembly 110 is provided with a first sealing surface 111; the left longitudinal beam connector 120 is connected to the left side of the front lower panel assembly 110, and the left longitudinal beam connector 120 is provided with a left sealing surface 121; the right longitudinal beam connector 130 is connected to the right side of the front lower panel assembly 110, and the right longitudinal beam connector 130 is provided with a right sealing surface 131, and the left sealing surface 121 and the right sealing surface 131 are arranged on the same side as the first sealing surface 111; wherein, the first sealing surface 111, the left sealing surface 121 and the right sealing surface 131 are connected to the bottom plate of the battery box as the side walls of the battery box.

[0029] It can be understood that the vehicle's front lower assembly 10 is located near the front of the vehicle and between the vehicle's front door and the vehicle's front wheel. In order to clearly describe the structure of this application, the view of the front lower assembly 10 of this application close to the vehicle body is a front view of the front lower assembly 10. The side of the front lower assembly 10 facing the front of the vehicle is defined as the front, and the side of the front lower assembly 10 facing the vehicle body is defined as the rear. The battery box is located at the bottom of the seat, and the lower part of the front lower assembly 10 is connected to the battery box. The left longitudinal beam connector 120 is respectively connected to the left cabin longitudinal beam and the left door sill longitudinal beam of the vehicle, and the right longitudinal beam connector 130 is respectively connected to the right cabin longitudinal beam and the right door sill longitudinal beam of the vehicle. It can be understood that the front lower panel assembly 110 is located between the left longitudinal beam connector 120 and the right longitudinal beam connector 130, the left side of the front lower panel assembly 110 is connected to the left longitudinal beam connector 120, and the right side of the front lower panel assembly 110 is connected to the right longitudinal beam connector 130, and the left sealing surface 121 and the right sealing surface 131 are arranged on the same side as the first sealing surface 111, so that the left sealing surface 121 and the right sealing surface 131 and the first sealing surface 111 serve as the side walls of the battery box and are connected to the bottom plate of the battery box. In order to increase the stability of the connection between the battery box and the vehicle, the bottom plate of the battery box extends toward the vehicle body, and the left sealing surface 121 and the right sealing surface 131 and the first sealing surface 111 serve as the side walls of the battery box and are connected to the bottom plate of the battery box, that is, the left sealing surface 121 and the right sealing surface 131 and the first sealing surface 111 serve as the side walls of the battery box and are connected to the portion of the bottom plate of the battery box extending toward the vehicle body. The left sealing surface 121, the right sealing surface 131 and the first sealing surface 111 serve as the side walls of the battery box and are connected to the bottom plate of the battery box, realizing an integrated design of the front lower component 10, i.e., the vehicle body and the battery box, so that the left sealing surface 121, the right sealing surface 131 and the first sealing surface 111 replace the traditional upper cover of the battery box, realizing the vehicle body skeleton structure serving as the upper cover of the battery box, and being coupled with the battery box, thereby increasing the usable space inside the battery box.

[0030] The left longitudinal beam connector 120 and the right longitudinal beam connector 130 have the same specific structure and are bilaterally symmetrical.

[0031] The dash lower assembly 10 provided in the present application is provided with a dash lower panel assembly 110, a left longitudinal beam connector 120, and a right longitudinal beam connector 130. The left longitudinal beam connector 120 is connected to the left side of the dash lower panel assembly 110, the right longitudinal beam connector 130 is connected to the right side of the dash lower panel assembly 110, and the left sealing surface 121 of the left longitudinal beam connector 120 and the right sealing surface 131 of the right longitudinal beam connector 130 are arranged on the same side as the first sealing surface 111 of the dash lower panel assembly 110. The left sealing surface 121, the right sealing surface 131 and the first sealing surface 111 serve as side walls of the battery box and are connected to the bottom plate of the battery box. Through the above method, an integrated design of the vehicle body and the battery box can be achieved, so that the left longitudinal beam connector 120, the right longitudinal beam connector 130 and the front lower panel assembly 110 act as the upper cover of the traditional battery box, and the vehicle body skeleton structure acts as the upper cover of the battery box, and is coupled with the battery box to increase the usable space inside the battery box.

[0032] Optionally, see Figure 2 , Figure 2 yes Figure 1 A schematic structural diagram of an embodiment of a front lower panel assembly is shown in FIG. Figure 2 As shown, the front panel lower assembly 110 includes a first front panel cross beam 112 and a second front panel cross beam 113. The first front panel cross beam 112 includes a bottom surface. The bottom surface of the first front panel cross beam 112 serves as a first sealing surface 111, and the left and right sides of the first front panel cross beam 112 are respectively connected to the upper left portion of the left longitudinal beam connector 120 and the upper right portion of the right longitudinal beam connector 130; the second front panel cross beam 113 is connected to the side of the first front panel cross beam 112 facing away from the battery box, and the left and right sides of the second front panel cross beam 113 are respectively connected to the upper left portion of the left longitudinal beam connector 120 and the upper right portion of the right longitudinal beam connector 130.

[0033] It can be understood that the first and second front cross-members 112, 113 are arranged transversely and vertically. The first front cross-member 112 includes a bottom surface, which serves as the first sealing surface 111 and is connected to the bottom plate of the battery box. The second front cross-member 113 is arranged above the first front cross-member 112. That is, the first front cross-member 112 serves as the lower portion of the front lower panel assembly 110, while the second front cross-member 113 serves as the upper portion of the front lower panel assembly 110 and is connected to the side of the first front cross-member 112 facing away from the battery box. The first and second front cross-members 112, 113 are arranged vertically, and the connection between the first and second front cross-members 112, 113 overlaps to increase the strength of the front lower panel assembly 110. The upper left portion of the left longitudinal beam connector 120 refers to the upper portion of the left longitudinal beam connector 120, and the upper right portion of the right longitudinal beam connector 130 refers to the upper portion of the right longitudinal beam connector 130. The left side of the first dash cross member 112 is connected to the right side of the upper left portion of the left longitudinal beam connector 120, and the right side of the first dash cross member 112 is connected to the left side of the upper right portion of the right longitudinal beam connector 130. The left side of the second dash cross member 113 is connected to the right side of the upper left portion of the left longitudinal beam connector 120, and the right side of the second dash cross member 113 is connected to the left side of the upper right portion of the right longitudinal beam connector 130.

[0034] The front panel lower assembly 110 of this embodiment is provided with a first front panel cross beam 112 and a second front panel cross beam 113, wherein the bottom surface of the first front panel cross beam 112 serves as the first sealing surface 111, and the left and right sides of the first front panel cross beam 112 are respectively connected to the upper left portion of the left longitudinal beam connector 120 and the upper right portion of the right longitudinal beam connector 130; the second front panel cross beam 113 is connected to the side of the first front panel cross beam 112 facing away from the battery box, and the left and right sides of the second front panel cross beam 113 are respectively connected to the upper left portion of the left longitudinal beam connector 120 and the upper right portion of the right longitudinal beam connector 130. Through the above method, the bottom surface of the first front panel cross beam 112 is sealedly connected to the battery box as the first sealing surface 111, that is, the vehicle body frame structure and the battery pack box are coupled to increase the usable space inside the battery box; further, the front panel lower plate assembly 110 is provided with the first front panel cross beam 112 and the second front panel cross beam 113. When the vehicle collides with the front, the first front panel cross beam 112 and the second front panel cross beam 113 provide a force transmission path, which can effectively decompose the front collision energy and improve the vehicle's anti-collision performance.

[0035] In other embodiments, when the left and right sides of the first front wall cross beam 112 and the left and right ends of the second front wall cross beam 113 are connected to the upper left part of the left longitudinal beam connector 120 and the upper right part of the right longitudinal beam connector 130, they are connected by self-piercing riveting (SPR) technology. SPR is a cold connection technology in which a riveting die penetrates a rivet into two or more layers of sheet material at a certain pressure and speed to form an interlocking rivet and sheet material. SPR is not only suitable for connections between the same materials, but also can achieve double-layer and multi-layer connections of homogeneous and heterogeneous materials such as aluminum-magnesium, aluminum-steel, magnesium-steel, aluminum alloy / magnesium alloy / high-strength steel and polymer materials / composite materials. The riveting process has low energy consumption, no thermal effect, and will not damage the coating.

[0036] Optionally, see Figure 2 The first front cross member 112 is a U-shaped structure with an opening facing upward. The bottom surface facing away from the opening serves as the first sealing surface 111. The U-shaped bottom surface of the first front cross member 112 is provided with a mounting hole. A projection welding nut is provided inside the mounting hole to securely connect the battery box.

[0037] In this embodiment, the first front panel cross beam 112 is a U-shaped structure with an opening upward, and its U-shaped bottom surface serves as a first sealing surface 111 connected to the battery box. The U-shaped bottom surface of the first front panel cross beam 112 and the left sealing surface 121 and the right sealing surface 131 are at the same height plane, and can form a complete front sealing surface of the battery box.

[0038] Optionally, see Figure 3 , Figure 3 yes Figure 2 A structural diagram of another embodiment of the front lower panel assembly in the embodiment is shown in FIG. Figure 3 As shown, the front lower panel assembly 110 also includes a front lower panel 114, which is arranged on the rear side of the first front lower panel 112 and the second front lower panel 113, and is respectively connected to the left longitudinal beam connector 120 and the right longitudinal beam connector 130; wherein, the front lower panel 114 and the first front lower panel 112 and the second front lower panel 113 form a sealed cavity.

[0039] As can be understood, the dash lower panel 114 is disposed behind the first dash cross member 112 and the second dash cross member 113, and is respectively connected to the first dash cross member 112, the second dash cross member 113, the upper left portion of the left longitudinal beam connector 120, and the upper right portion of the right longitudinal beam connector 130. The dash lower panel 114 forms a sealed cavity with the first dash cross member 112 and the second dash cross member 113. The connection between the first dash cross member 112 and the second dash cross member 113 is an overlapping arrangement, with the first dash cross member 112, the second dash cross member 113, and the dash lower panel 114 forming a three-layer spot weld connection, which effectively increases strength. Among them, the side of the front lower plate 114 away from the first front cross beam 112 and the second front cross beam 113, and the middle part of the rear of the front lower component 10 is provided with a central channel beam arranged along the longitudinal direction of the vehicle body. When a front collision occurs, a central force transmission path of the cabin longitudinal beam, the sealing cavity and the central channel member is formed, which effectively decomposes the front collision energy and protects the battery cells in the battery box and the occupants above the battery box.

[0040] The front panel lower panel assembly 110 of this embodiment further provides a front panel lower panel 114 on the rear side of the first front panel cross beam 112 and the second front panel cross beam 113, so that the front panel lower panel 114 and the first front panel cross beam 112 and the second front panel cross beam 113 form a sealed cavity. When a front collision occurs, a central force transmission path is formed among the cabin longitudinal beams, the sealed cavity and the central channel member, which effectively decomposes the front collision energy and protects the battery cells in the battery box and the occupants above the battery box.

[0041] In other embodiments, the dash lower panel 114 is spot-welded to the first dash cross member 112 and the second dash cross member 113 to form two closed transverse cavities. The two sides of the dash lower panel 114 are fixedly connected to the left and right longitudinal beam connectors 120 and 130 using flow drill screws (FDS) technology. The FDS technology can be used to connect dissimilar or homogeneous metals.

[0042] Optionally, see Figure 4 , Figure 4 yes Figure 1 The structural diagram of an embodiment of the left longitudinal beam connecting member is as follows: Figure 4 As shown, the left longitudinal beam connector 120 is provided with a first extension portion 122 extending rearward along the front-back direction. The first extension portion 122 divides the left longitudinal beam connector 120 into the upper left portion of the left longitudinal beam connector 120 and the lower left portion of the left longitudinal beam connector 120. The right longitudinal beam connector 130 (for detailed structure, please refer to Figure 4 and Figure 5The left longitudinal beam connector 120 (120) has a second extension extending rearward in the front-to-rear direction. The second extension divides the right longitudinal beam connector 130 into an upper right portion of the right longitudinal beam connector 130 and a lower right portion of the right longitudinal beam connector 130. The bottom of the lower left portion serves as the left sealing surface 121, and the bottom of the lower right portion serves as the right sealing surface 131.

[0043] It can be understood that the left longitudinal beam connector 120 has a first extension portion 122 extending rearward along the front-to-back direction of the front lower assembly 10, that is, the first extension portion 122 extends from the side of the left longitudinal beam connector 120 close to the vehicle body, and the first extension portion 122 divides the left longitudinal beam connector 120 into a left upper portion and a left lower portion, wherein the bottom of the left lower portion serves as a left sealing surface 121 for connection with the battery case. Similarly, the right longitudinal beam connector 130 has a second extension portion extending rearward along the front-to-back direction of the front lower assembly 10, that is, the second extension portion extends from the side of the right longitudinal beam connector 130 close to the vehicle body, and the second extension portion divides the right longitudinal beam connector 130 into a right upper portion and a right lower portion, wherein the bottom of the right lower portion serves as a right sealing surface 131 for connection with the battery case.

[0044] In other embodiments, mounting holes are evenly provided on the left sealing surface 121 and the right sealing surface 131 , threaded steel sleeves are embedded in the mounting holes, and the battery box is fastened to the vehicle body by bolts through the mounting holes.

[0045] Specifically, first reinforcing ribs 123 are provided between the lower left and upper left portions of the left longitudinal beam connector 120 and the first extension 122, and second reinforcing ribs are provided between the lower right and upper right portions of the right longitudinal beam connector 130 and the second extension. It is understood that the vertically and horizontally staggered first reinforcing ribs 123 are provided between the lower left and upper left portions of the left longitudinal beam connector 120 and the first extension 122. These first reinforcing ribs 123 not only enhance the strength of the left longitudinal beam connector 120 but also serve as force-transmitting and guiding ribs for the cabin longitudinal beam. Similarly, the vertically and horizontally staggered second reinforcing ribs are provided between the lower right and upper right portions of the right longitudinal beam connector 130 and the second extension. These second reinforcing ribs not only enhance the strength of the right longitudinal beam connector 130 but also serve as force-transmitting and guiding ribs for the cabin longitudinal beam. This embodiment can improve the strength of the left longitudinal beam connector 120 by providing a first reinforcing rib 123 between the first extension portion 122 of the left longitudinal beam connector 120 and the upper left portion and the lower left portion; and can improve the strength of the right longitudinal beam connector 130 by providing a second reinforcing rib between the second extension portion of the right longitudinal beam connector 130 and the upper right portion and the lower right portion; further, the first reinforcing rib 123 and the second reinforcing rib can serve as force transmission and guiding ribs of the cabin longitudinal beam, which can improve the safety performance of the vehicle.

[0046] Optionally, the left longitudinal beam connector 120 is integrally formed with the first reinforcing rib 123 and the first extension 122; and the right longitudinal beam connector 130 is integrally formed with the second reinforcing rib and the second extension. In this embodiment, the left longitudinal beam connector 120 is integrally formed with the first reinforcing rib 123 and the first extension 122, and the right longitudinal beam connector 130 is integrally formed with the second reinforcing rib and the second extension. This reduces the number of parts in the left and right longitudinal beam connectors 120 and 130, thereby reducing the cross-sectional dimensions of the connection between the left longitudinal beam connector 120 and the left cabin longitudinal beam and the left sill longitudinal beam, and the connection between the right longitudinal beam connector 130 and the right cabin longitudinal beam and the right sill longitudinal beam, thereby providing space for the arrangement of the battery box and tires.

[0047] Optionally, a left U-shaped connecting portion 125 with an upward opening is provided on the right side of the upper left portion of the left longitudinal beam connecting member 120. The left U-shaped connecting portion 125 is used to mount the U-shaped bottom surface of the first front wall cross member 112. Figure 5 , Figure 5 yes Figure 4 The rear view of the structure of the left longitudinal beam connecting member in the embodiment is as follows: Figure 5 As shown, the front portion of the upper left portion of the left longitudinal beam connector 120 is provided with a left connecting portion 124 in the shape of a Chinese character "J". The left connecting portion 124 is used to match the Chinese character "J" of the left cabin longitudinal beam, so that the left connecting portion 124 is fixedly connected to the left cabin longitudinal beam by bolts. Similarly, the left side of the upper right portion of the right longitudinal beam connector 130 is provided with a right U-shaped connecting portion with an upward opening, and the right U-shaped connecting portion is used to install the U-shaped bottom surface of the first front panel crossbeam 112. The front portion of the upper right portion of the right longitudinal beam connector 130 is provided with a right connecting portion in the shape of a Chinese character "J". The right connecting portion is used to match the Chinese character "J" of the right cabin longitudinal beam, so that the right connecting portion is fixedly connected to the right cabin longitudinal beam by bolts.

[0048] Optionally, a left mounting portion is provided at the front of the lower left portion of the left longitudinal beam connector 120, and a body frame process hole is provided on the left mounting portion. The body frame process hole is used to securely connect the left longitudinal beam connector 120 to the subframe. Similarly, a right mounting portion is provided at the front of the lower right portion of the right longitudinal beam connector 130, and a body frame process hole is provided on the right mounting portion. The body frame process hole is used to securely connect the right longitudinal beam connector 130 to the subframe.

[0049] Optionally, the left longitudinal beam connector 120 is a first cast aluminum part. It is understood that the specific structure of the first cast aluminum part is the left longitudinal beam connector 120 of any of the aforementioned embodiments, or that the left longitudinal beam connector 120 is a first cast aluminum part formed integrally from cast aluminum. The right longitudinal beam connector 130 is a second cast aluminum part. It is understood that the specific structure of the second cast aluminum part is the right longitudinal beam connector 130 of any of the aforementioned embodiments, or that the right longitudinal beam connector 130 is a second cast aluminum part formed integrally from cast aluminum.

[0050] In this embodiment, the left longitudinal beam connector 120 is a first cast aluminum part and the right longitudinal beam connector 130 is a second cast aluminum part, that is, the left longitudinal beam connector 120 and the right longitudinal beam connector 130 are an integrally formed cast aluminum structure, which can reduce the number of parts and effectively reduce the cross-sectional size of the connection between the cabin longitudinal beam and the door sill beam while ensuring the collision performance, thereby providing space for the arrangement of the battery box and tires.

[0051] Optionally, see Figure 1 The dash lower assembly 10 also includes a steering box 140, located above and to the left of the dash lower panel assembly 110, and between the left longitudinal beam connector 120 and the dash lower panel assembly 110. Steering box 140 is connected to the upper left portion of the left longitudinal beam connector 120 and dash lower panel assembly 110, respectively, and is used to mount the vehicle's steering column. When the mounting box of this embodiment is connected to the left longitudinal beam connector 120, a compact Y-direction clearance is created, providing clearance for the bolts securing the left longitudinal beam connector 120 to the cabin longitudinal beam.

[0052] Specifically, see Figure 6 , Figure 6 yes Figure 1 The structural diagram of the steering box in the embodiment is as follows: Figure 6 As shown, the steering box 140 includes a first housing 141 and a second housing 142. The first housing is connected to the left longitudinal beam connector 120 and the front lower panel assembly 110, respectively. The first housing 141 has a first opening facing rearward in the fore-aft direction. The second housing 142 is connected to the first housing 141, the left longitudinal beam connector 120, and the front lower panel assembly 110, respectively. The second housing 142 has a second opening facing rearward in the fore-aft direction. Due to the relatively deep installation box, this embodiment utilizes the first and second housings 141, 142 to ensure component quality. Furthermore, the separate components of the installation box enhance platform commonality, enabling the development of universal right-hand drive vehicles while reducing development costs.

[0053] In other embodiments, the mounting box is fixedly connected to the front lower panel assembly 110 by spot welding, and the mounting box is fixedly connected to the left longitudinal beam connector 120 by FDS technology.

[0054] See Figure 7 , Figure 7 FIG. 1 is a structural exploded view of another embodiment of the front lower assembly of a vehicle provided by the present application. Figure 7 As shown, the dash lower assembly 10 includes a left longitudinal beam connector 120, a right longitudinal beam connector 130, a steering box 140, and a dash lower panel assembly 110. The dash lower panel assembly 110 comprises a first dash cross member 112, a second dash cross member 113, and a dash lower panel 114. The left longitudinal beam connector 120 is a first cast aluminum component, and the right longitudinal beam connector 130 is a second cast aluminum component. The left and right longitudinal beam connectors 120 and 130 are fixedly connected to other parts using methods such as spot welding, SPR, and FDS. The front panel lower component 10 is divided into two parts, the upper part of the front panel lower component 10 is mainly the passenger compartment firewall structure, which is mainly composed of the upper left part of the left longitudinal beam connector 120, the upper right part of the right longitudinal beam connector 130, the second front panel cross beam 113, the front panel lower plate 114, etc.; the lower part of the front panel lower component 10 is mainly composed of the lower left part of the left longitudinal beam connector 120, the lower right part of the right longitudinal beam connector 130, and the first front panel cross beam 112. The lower part of the front panel lower component 10 is integrated with the battery box, that is, the first sealing surface 111, the left sealing surface 121 and the right sealing surface 131 serve as the side walls of the battery box and are connected to the bottom plate of the battery box, so that the front panel lower component 10 is coupled with the battery box.

[0055] The front lower assembly 10 of this embodiment has the following advantages:

[0056] 1. High integration and compact structure: The left and right longitudinal beam connectors 120 and 130, as important structural components of the vehicle body frame, adopt an integrated cast aluminum structure, which can reduce the number of parts. While ensuring collision performance, the cross-sectional dimensions of the connection between the longitudinal beam connectors and the cabin longitudinal beams and the door sill longitudinal beams are effectively reduced, providing space for the arrangement of the battery box and tires. At the same time, the lower part of the front lower assembly 10 is coupled with the battery pack box, effectively increasing the internal usable space of the battery box.

[0057] 2. Good platform versatility: Through a reasonable connection structure, the steering box 140 and the longitudinal beam connectors, namely the left longitudinal beam connector 120 and the right longitudinal beam connector 130, are designed in parts, so that the cast aluminum left longitudinal beam connector 120 and the right longitudinal beam connector 130 can meet the universal development of left-hand drive and right-hand drive models at the same time.

[0058] 3. Good performance: The vehicle body battery box has an integrated structure, and adopts a coupling design between the battery box and the front lower component 10, that is, the vehicle body structure serves as the battery cover. The left longitudinal beam connector 120 and the right longitudinal beam connector 130 serve as structural members connecting the left and right cabin longitudinal beams and the left and right door sill beams. There are Y- and Z-direction drops. At the same time, the bottom of the lower left part of the left longitudinal beam connector 120 and the bottom of the lower right part of the right longitudinal beam connector 130 provide a sealing surface structure for the battery box. Furthermore, the use of a cast aluminum structure can ensure the dimensional accuracy of the battery sealing surface and the installation point.

[0059] This application also provides a vehicle, see Figure 8 , Figure 8 This is a schematic structural diagram of an embodiment of a vehicle provided by the present application. Figure 8 As shown, the vehicle 20 includes a front lower panel assembly of the vehicle (not marked in the figure), wherein the front lower panel assembly includes any one of the front lower panel assemblies in the above-mentioned embodiments.

[0060] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0061] The above is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A front lower component of a vehicle, characterized in that: include: The front lower panel assembly is provided with a first sealing surface; A left longitudinal beam connecting member connected to the left side of the front lower panel assembly, wherein the left longitudinal beam connecting member is provided with a left sealing surface; a right longitudinal beam connector connected to the right side of the front lower panel assembly, the right longitudinal beam connector being provided with a right sealing surface, and the left sealing surface and the right sealing surface being provided on the same side as the first sealing surface; The dash lower panel assembly includes a first dash cross member, the first dash cross member includes a bottom surface, the bottom surface serves as the first sealing surface, and the left side and right side of the first dash cross member are respectively connected to the left upper portion of the left longitudinal beam connector and the right upper portion of the right longitudinal beam connector; The left longitudinal beam connecting member is provided with a first extension portion extending rearward along the front-rear direction, wherein the first extension portion divides the left longitudinal beam connecting member into the left upper portion and the left lower portion of the left longitudinal beam connecting member; The right longitudinal beam connector is provided with a second extension portion extending rearward along the front-to-back direction, the second extension portion dividing the right longitudinal beam connector into the right upper portion and the right lower portion of the right longitudinal beam connector; the bottom of the left lower portion serves as a left sealing surface, and the bottom of the right lower portion serves as a right sealing surface; The first sealing surface, the left sealing surface and the right sealing surface serve as side walls of the battery box and are connected to the bottom plate of the battery box, so that the left sealing surface, the right sealing surface and the first sealing surface serve as an upper cover of the battery box.

2. The cowl lower assembly according to claim 1, characterized in that: The front lower panel assembly further includes: The second front wall cross beam is connected to a side of the first front wall cross beam facing away from the battery box, and the left side and the right side of the second front wall cross beam are respectively connected to the left upper part and the right upper part.

3. The cowl lower assembly according to claim 2, characterized in that: The front lower panel assembly further includes: A front lower plate is provided on the rear side of the first front cross beam and the second front cross beam, and is connected to the left longitudinal beam connector and the right longitudinal beam connector respectively; The front lower panel, the first front cross beam and the second front cross beam form a sealed cavity.

4. The cowl lower assembly according to claim 1, wherein: A first reinforcing rib is provided between the lower left portion, the upper left portion and the first extension portion; A second reinforcing rib is provided between the right lower portion, the right upper portion and the second extending portion.

5. The cowl lower assembly according to claim 4, characterized in that: The left longitudinal beam connecting member is integrally formed with the first reinforcing rib and the first extension portion; The right longitudinal beam connecting member, the second reinforcing rib and the second extending portion are integrally formed.

6. The cowl lower assembly according to claim 4, characterized in that: The left longitudinal beam connecting piece is a first cast aluminum piece; The right longitudinal beam connecting piece is a second cast aluminum piece.

7. The cowl lower assembly according to claim 1, characterized in that: The front lower component also includes: The steering box is located above the left side of the front lower panel assembly, is connected to the left longitudinal beam connector and the front lower panel assembly, and is used for installing the steering column of the vehicle.

8. The cowl lower assembly according to claim 7, characterized in that: The steering box comprises: A first shell is connected to the left longitudinal beam connector and the front lower panel assembly respectively; The second shell is connected to the first shell, the left longitudinal beam connecting member and the front lower plate assembly respectively.

9. A vehicle, characterized in that: include: The front lower assembly according to any one of claims 1 to 8.

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