Front floor threshold vehicle body structure and vehicle

Abstract

The invention relates to the technical field of vehicles, in particular to a front floor threshold vehicle body structure and a vehicle, the front floor threshold vehicle body structure is provided with a middle channel beam, a left reinforcing beam, a right reinforcing beam, a front seat cross beam, a rear seat cross beam, a front cross beam and a threshold inner plate assembly, and the middle channel beam, the left reinforcing beam and the right reinforcing beam extend in the first direction; the left reinforcing beam and the right reinforcing beam are located on the two sides of the middle channel beam in the second direction respectively, the front seat cross beam and the rear seat cross beam extend in the second direction, the left reinforcing beam and the right reinforcing beam are both connected with front cross beams, the front cross beams are obliquely arranged relative to the front seat cross beams, and each front cross beam is connected with a threshold inner plate assembly. The doorsill inner plate assembly comprises a doorsill inner plate body connected to the front cross beam, a cavity is formed in the side, away from the front cross beam, of the doorsill inner plate body, first net-shaped reinforcing ribs are arranged in the cavity, and the first direction and the second direction are perpendicular to each other and located on the same plane. And under different column collision working conditions, collision energy is dispersed, and the intrusion amount is reduced.

Description

Technical Field

[0001] This disclosure relates to the field of vehicle technology, and more particularly to a front floor sill body structure and vehicle. Background Technology

[0002] Currently, the traditional body-in-white front floor frame is a structure composed of multiple stamped parts, such as the front floor panel, the left front reinforcing beam of the front floor, the right front reinforcing beam of the front floor, the central tunnel, the front crossbeam assembly of the seat, the rear crossbeam assembly of the seat, and the inner door sill panel assembly, which are spliced ​​together through processes such as welding, cold connection, and adhesive bonding. Not only are there a large number of parts, but also the intrusion of occupants and batteries is relatively large under pole collision conditions. Summary of the Invention

[0003] To address the aforementioned technical problems, this disclosure provides a front floor sill body structure and a vehicle.

[0004] In a first aspect, this disclosure provides a front floor sill body structure, the front floor sill body structure having a central channel beam, a left reinforcing beam, a right reinforcing beam, a front seat crossbeam, a rear seat crossbeam, a front crossbeam, and a sill inner panel assembly, the central channel beam, the left reinforcing beam, and the right reinforcing beam all extending along a first direction, and the left reinforcing beam and the right reinforcing beam respectively located on both sides of the central channel beam in a second direction, the front seat crossbeam and the rear seat crossbeam all extending along the second direction and spaced apart in the first direction, the central channel beam, the left reinforcing beam, and the right reinforcing beam all connected to the front seat crossbeam, the left reinforcing beam and the right reinforcing beam all connected to the front crossbeam, and the front crossbeam being inclined relative to the front seat crossbeam;

[0005] Each of the front crossbeams is connected to a sill inner panel assembly. The sill inner panel assembly includes a sill inner panel body connected to the front crossbeam. In the second direction, the side of the sill inner panel body opposite to the front crossbeam has a cavity. The cavity is provided with a mesh-like first reinforcing rib. The first direction and the second direction are perpendicular to each other and located in the same plane.

[0006] Optionally, the sill inner panel body includes a bottom plate, a connecting plate, and a top plate connected in sequence. The connecting plate is connected to the front seat crossbeam, the rear seat crossbeam, and the front crossbeam. The cavity is formed between the bottom plate, the connecting plate, and the top plate.

[0007] Optionally, the base plate has at least one first thickness reinforcement area, and the base plate has a first battery mounting hole in the first thickness reinforcement area for a threaded sleeve for mounting a battery to extend into.

[0008] Optionally, the top plate is provided with a threshold panel mounting hole and a wire harness mounting hole;

[0009] And / or, the base plate is provided with brake pipeline mounting holes.

[0010] Optionally, each of the inner sill plates is provided with a second reinforcing rib on the side facing the front crossbeam.

[0011] Optionally, each of the front crossbeams is inclined away from the front seat crossbeam.

[0012] Optionally, the front floor sill body structure also has a first reinforcing beam, which is disposed between the central channel beam and the left reinforcing beam, and between the central channel beam and the right reinforcing beam, with the two first reinforcing beams symmetrically arranged about the central channel beam.

[0013] Optionally, the front floor sill body structure also has two second reinforcing beams, which extend along a first direction and connect between the front seat crossbeam and the rear seat crossbeam, with the two second reinforcing beams facing the left reinforcing beam and the right reinforcing beam respectively in the first direction.

[0014] Optionally, the front floor sill body structure is integrally die-cast, and the material of the front floor sill body structure is aluminum alloy.

[0015] Secondly, this disclosure also provides a vehicle including the front floor sill body structure of the first aspect described above, wherein the first direction is the left-right direction of the vehicle and the second direction is the front-rear direction of the vehicle.

[0016] The technical solution provided in this disclosure has the following advantages compared with the prior art:

[0017] The front floor sill body structure incorporates a central channel beam, left reinforcing beam, right reinforcing beam, front seat crossbeam, rear seat crossbeam, front crossbeam, and sill inner panel assembly. Both the left and right reinforcing beams are connected to the front crossbeam, which is angled relative to the front seat crossbeam. The left reinforcing beam and its connected front crossbeam, as well as the right reinforcing beam and its connected front crossbeam, form stable triangular stress-bearing areas. Furthermore, the sill inner panel itself contains a mesh-like first reinforcing rib, which helps disperse collision energy under different pole impact conditions, reducing occupant and battery intrusion and mitigating the problem of significant front-end crushing deformation of the front floor sill body structure under small barrier offset collisions. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0019] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the front floor sill body structure described in an embodiment of the present disclosure;

[0021] Figure 2 This is a bottom view of the front floor sill body structure described in an embodiment of this disclosure;

[0022] Figure 3 for Figure 2 Schematic sectional view along the middle AA direction;

[0023] Figure 4 This is a top view of the front floor sill body structure described in an embodiment of this disclosure;

[0024] Figure 5 for Figure 4 Cross-sectional view along the middle BB direction;

[0025] Figure 6 for Figure 4 Cross-sectional view along the CC direction.

[0026] in,

[0027] 1. Central channel beam; 2. Left reinforcing beam; 3. Right reinforcing beam; 4. Front seat crossbeam; 5. Rear seat crossbeam; 51. Third battery mounting hole; 6. Front crossbeam; 7. Sill plate assembly; 71. Sill plate body; 711. Top plate; 7111. Sill plate mounting hole; 7112. Wiring harness mounting hole; 712. Connecting plate; 713. Bottom plate; 7131. First thickness reinforcement zone; 7132. First battery mounting hole; 7133. Brake line mounting hole; 72. First reinforcing rib; 73. Second reinforcing rib; 8. First reinforcing beam; 81. Second battery mounting hole; 9. Second reinforcing beam; 10. Mounting crossbeam;

[0028] 101. Seat mounting bracket; 1011. Seat mounting hole; 102. Groove; 103. Electrical module mounting bracket; 104. Brake pedal mounting component; 105. CCB bracket mounting position. Detailed Implementation

[0029] To better understand the above-mentioned objectives, features, and advantages of this disclosure, the solutions disclosed herein will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0030] Numerous specific details are set forth in the following description in order to provide a full understanding of this disclosure, but this disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some, and not all, of the embodiments of this disclosure.

[0031] like Figures 1 to 6 As shown, this disclosure provides a front floor sill body structure, which has a central channel beam 1, a left reinforcing beam 2, a right reinforcing beam 3, a front seat crossbeam 4, a rear seat crossbeam 5, a front crossbeam 6, and a sill inner panel assembly 7.

[0032] The central channel beam 1, left reinforcing beam 2, and right reinforcing beam 3 all extend along a first direction, with the left reinforcing beam 2 and right reinforcing beam 3 located on either side of the central channel beam 1 in a second direction. The front seat crossbeam 4 and rear seat crossbeam 5 both extend along a second direction and are spaced apart in the first direction. The central channel beam 1, left reinforcing beam 2, and right reinforcing beam 3 are all connected to the front seat crossbeam 4. Both the left and right reinforcing beams are connected to a front crossbeam 6, which is inclined relative to the front seat crossbeam 4.

[0033] Each front crossbeam 6 is connected to a sill inner panel assembly. The sill inner panel assembly includes a sill inner panel body 71 connected to the front crossbeam 6. In the second direction, the sill inner panel body 71 has a cavity on the side opposite to the front crossbeam 6. A first reinforcing rib 72 in a mesh pattern is provided in the cavity. The first direction and the second direction are perpendicular to each other and located in the same plane.

[0034] Understandably, this front floor sill body structure incorporates a central channel beam 1, a left reinforcing beam 2, a right reinforcing beam 3, a front seat crossbeam 4, a rear seat crossbeam 5, a front crossbeam 6, and a sill inner panel assembly 7. Both the left and right reinforcing beams 2 and 3 are connected to the front crossbeam 6, and the front crossbeam 6 is inclined relative to the front seat crossbeam 4. The left reinforcing beam 2 and its connected front crossbeam 6, as well as the right reinforcing beam 3 and its connected front crossbeam 6, form a stable triangular stress-bearing area. Furthermore, the sill inner panel body 71 contains a mesh-like first reinforcing rib 72, which helps to disperse collision energy under different pole impact conditions, reduce the intrusion of occupants and the battery, and improve the problem of large front-end crushing deformation of the front floor sill body structure under small barrier offset collisions.

[0035] It should be noted that the first direction mentioned above refers to the vehicle's front-to-back direction, and the second direction refers to the vehicle's left-to-right direction. Specifically, the first direction is as follows: Figure 2 In the X direction, the second direction is as follows Figure 2 The Y direction. The aforementioned front seat crossbeam 4 and rear seat crossbeam 5 both extend along the second direction, and the two sill inner panel assemblies 7 are respectively connected to the two ends of the front seat crossbeam 4 in the second direction, and the two sill inner panel assemblies 7 are respectively connected to the two ends of the rear seat crossbeam 5 in the second direction.

[0036] In some embodiments, the aforementioned front floor sill body structure is integrally die-cast. That is, the central channel beam 1, left reinforcing beam 2, right reinforcing beam 3, front seat crossbeam 4, rear seat crossbeam 5, front crossbeam 6, and sill inner panel assembly 7 constituting the front floor sill body structure are integrally formed. This creates a single-piece front floor sill body structure, reducing the number of parts. Compared to connecting multiple parts, this reduces accumulated dimensional tolerances and improves the stability of product quality dimensions. Furthermore, integrating multiple parts into a single design improves design and development efficiency, reduces process steps, reduces connecting materials between parts, and lowers manufacturing costs. In addition, using die-casting for this front floor sill body structure increases the overall rigidity of the front floor sill body structure, increases the force transmission channels on the front floor sill body structure, improves the collision force transmission performance of the front floor sill body structure, and contributes to the lightweighting of the front floor sill body structure.

[0037] Furthermore, the front floor sill body structure is made of aluminum alloy, meaning that the front floor sill body structure is formed by die casting using aluminum alloy, which reduces weight while improving the overall body-in-white performance.

[0038] like Figure 1 and Figure 2 As shown, in some embodiments, two front crossbeams 6 are provided, which are respectively connected to the left reinforcing beam 2 and the right reinforcing beam 3, and the two front crossbeams 6 are symmetrically arranged about the central channel beam 1. This makes the overall structure of the front floor sill good, maintains structural symmetry, and improves structural strength.

[0039] Furthermore, the aforementioned threshold inner plate assembly 7 is provided in two symmetrical configurations about the central channel beam 1.

[0040] like Figure 2 and Figure 3 As shown, in some embodiments, the sill inner panel body 71 includes a bottom plate 713, a connecting plate 712 and a top plate 711 connected in sequence. The connecting plate 712 is connected to the front seat crossbeam 4, the rear seat crossbeam 5 and the front crossbeam 6. The cavity is formed between the bottom plate 713, the connecting plate 712 and the top plate 711.

[0041] Understandably, the aforementioned sill inner panel body 71 is U-shaped, thus forming a cavity to house the first reinforcing rib 72, thereby dispersing collision energy during an impact and reducing the intrusion of occupants and the battery. In the vehicle's height direction, the floor plate 713 is located below the roof plate 711.

[0042] like Figure 2As shown, the base plate 713 has a brake line mounting hole 7133. Specifically, a threaded sleeve is provided in the brake line mounting hole 7133 to cooperate with a screw to install the brake line.

[0043] Optionally, in some embodiments, the base plate 713 has a second thickness reinforcement region, in which the aforementioned brake line mounting hole 7133 is formed, thereby improving the connection strength of the screw and the threaded sleeve. Understandably, the second thickness reinforcement region increases the thickness of the base plate 713 in this area to facilitate the forming of the brake line mounting hole 7133.

[0044] like Figure 3 As shown, the inner sill plate body 71 has at least one first thickness reinforcement area 7131, and a first battery mounting hole 7132 is provided on the inner sill plate body 71 in the first thickness reinforcement area 7131 for a threaded sleeve for mounting a battery to extend into. Specifically, the base plate 713 has the first thickness reinforcement area 7131, that is, the battery is mounted on the base plate 713.

[0045] Understandably, the battery is installed by the engagement of screws and threaded sleeves, that is, the battery casing is installed on the base plate 713 of the inner sill plate body 71 by screws. Moreover, the first thickness reinforcement area increases the thickness of the base plate 713 in this area, thereby facilitating the opening of the aforementioned first battery mounting hole 7132 and enhancing the installation strength of the battery.

[0046] It should be noted that multiple first battery mounting holes 7132 are provided. Multiple first battery mounting holes 7132 are provided at intervals along the first direction on the bottom plate 713 of the inner sill plate body 71.

[0047] like Figure 4 As shown, each inner sill plate 71 has a second reinforcing rib 73 on the side facing the other inner sill plate 71. That is, the inner sill plate 71 forming the cavity has a first reinforcing rib 72 on one side and a second reinforcing rib 73 on the other side, which enhances the structural strength of the inner sill plate 71 and improves its bending resistance. Specifically, the second reinforcing rib 73 can be strip-shaped, mesh-like, or other shapes, without specific limitations.

[0048] It should be noted that the bottom plate 713, connecting plate 712, top plate 711, first reinforcing rib 72 and second reinforcing rib 73 that constitute the inner sill plate assembly 7 are integrally machined, that is, die-cast.

[0049] like Figure 4As shown, the top plate 711 has a sill panel mounting hole 7111 and a wire harness mounting hole 7112. Specifically, a threaded sleeve is provided in the sill panel mounting hole 7111 to cooperate with a screw for mounting the sill panel. A threaded sleeve is provided in the wire harness mounting hole 7112 to cooperate with a screw for fixing the wire harness.

[0050] Optionally, in some embodiments, the top plate 711 has a third thickness reinforcement region, in which the aforementioned sill plate mounting hole 7111 is formed, thereby improving the connection strength between the screw and the threaded sleeve. Understandably, the third thickness reinforcement region increases the thickness of the top plate 711 in this region to facilitate the forming of the sill plate mounting hole 7111 for installing the threaded sleeve. The top plate 711 has a fourth thickness reinforcement region, in which the aforementioned wire harness mounting hole 7112 is formed, thereby improving the connection strength between the screw and the threaded sleeve. Understandably, the fourth thickness reinforcement region increases the thickness of the top plate 711 in this region to facilitate the forming of the wire harness mounting hole 7112 for installing the threaded sleeve.

[0051] It should be noted that there are multiple sill plate mounting holes 7111 and wire harness mounting holes 7112.

[0052] like Figure 1 and Figure 4 As shown, in some embodiments, each front crossbeam 6 is inclined away from the front seat crossbeam 4.

[0053] In other words, the front crossbeam 6 connected to the left reinforcing beam 2 extends away from the front seat crossbeam 4 in a first direction from one end connected to the left reinforcing beam 2. That is, in the first direction, the distance between the front crossbeam 6 and the front seat crossbeam 4 gradually increases from one end connected to the left reinforcing beam 2 to the other. Similarly, the front crossbeam 6 connected to the right reinforcing beam 3 extends away from the front seat crossbeam 4 in a first direction from one end connected to the right reinforcing beam 3. That is, in the first direction, the distance between the front crossbeam 6 and the front seat crossbeam 4 gradually increases from one end connected to the right reinforcing beam 3 to the other.

[0054] With this configuration, in a small barrier offset collision, the left reinforcing beam 2 and the corresponding front crossbeam 6 form a relatively stable triangular stress-bearing area on the left side, preventing large crushing deformation. Similarly, in a small barrier offset collision, the right reinforcing beam 3 and the corresponding front crossbeam 6 form a relatively stable triangular stress-bearing area on the right side, preventing large crushing deformation. Moreover, this configuration of the front crossbeam 6 also allows for better dispersion of collision force and energy in a pole collision, reducing the intrusion of occupants and the battery.

[0055] like Figure 1 , Figure 2 and Figure 4 In some embodiments, the front floor sill body structure also has a first reinforcing beam 8, with the first reinforcing beam 8 disposed between the middle channel beam 1 and the left reinforcing beam 2, and between the middle channel beam 1 and the right reinforcing beam 3, and the two first reinforcing beams 8 are symmetrically arranged about the middle channel beam 1.

[0056] By incorporating the first reinforcing beam 8, the strength of the floor sill body structure during a collision in the second direction can be enhanced, reducing the intrusion of occupants and the battery. Simultaneously, it can disperse the collision force and energy during a collision in the first direction.

[0057] Reference Figure 1 The aforementioned first reinforcing beam 8 includes a base plate and two strip-shaped side plates. The two side plates are located on both sides of the base plate in the first direction. The side plates are divided into two connecting sections and a middle section located between the two connecting sections in the second direction. One connecting section is connected to the central channel beam 1, and the other connecting section is connected to the left reinforcing beam 2 or the right reinforcing beam 3. The width of the middle section is smaller than the width of the connecting section.

[0058] This configuration increases the connection strength between the side panel and the central channel beam 1, the left reinforcing beam 2, or the right reinforcing beam 3, thereby further improving the overall strength of the front floor sill body structure.

[0059] It should be noted that one connecting segment of the side plate of the first reinforcing beam 8, located between the central channel beam 1 and the left reinforcing beam 2, is connected to the central channel beam 1, and the other connecting segment is connected to the left reinforcing beam 2. Similarly, one connecting segment of the side plate of the first reinforcing beam 8, located between the central channel beam 1 and the right reinforcing beam 3, is connected to the central channel beam 1, and the other connecting segment is connected to the right reinforcing beam 3. Furthermore, one end of the bottom plate of the first reinforcing beam 8, located between the central channel beam 1 and the left reinforcing beam 2, is connected to the central channel beam 1, and the other end is connected to the left reinforcing beam 2. Likewise, one end of the bottom plate of the first reinforcing beam 8, located between the central channel beam 1 and the right reinforcing beam 3, is connected to the central channel beam 1, and the other end is connected to the right reinforcing beam 3. This arrangement of the first reinforcing beam 8 increases the force transmission path, which helps to reduce crushing deformation.

[0060] Furthermore, the first reinforcing beam 8 is provided with a second battery mounting hole 81 for mounting the vehicle battery. Specifically, a threaded sleeve is provided in the second battery mounting hole 81 of the first reinforcing beam 8, so that the battery casing can be fixed to the first reinforcing beam 8 by cooperating with a screw.

[0061] It should be noted that, in order to improve the structural strength of the first reinforcing beam 8 at the second battery mounting hole 81, the thickness of the first reinforcing beam 8 at the location where the second battery mounting hole 81 is opened can be increased, thereby improving the stability of the threaded sleeve, and thus enhancing the connection stability between the screw and the threaded sleeve, and improving the installation stability of the battery.

[0062] Furthermore, referring to Figure 1 and Figure 2 The front floor sill body structure also has two second reinforcing beams 9, which extend along the first direction and connect between the front seat crossbeam 4 and the rear seat crossbeam 5. The two second reinforcing beams 9 are respectively facing the left reinforcing beam 2 and the right reinforcing beam 3 in the first direction.

[0063] By incorporating a second reinforcing beam 9, which connects the front seat crossbeam 4 and the rear seat crossbeam 5, the structural strength and rigidity of the front floor sill body structure in the first direction are enhanced. This allows for the buffering of impact forces and the dispersion of impact energy during a collision in the first direction, preventing significant crushing deformation. Furthermore, the two second reinforcing beams 9 are directly aligned with the left reinforcing beam 2 and the right reinforcing beam 3 in the first direction, respectively, directly buffering and dispersing the impact forces transmitted from the left and right reinforcing beams 2 and 3, further reducing crushing deformation.

[0064] It should be noted that, since the front floor sill body structure is die-cast, the overall performance can be improved by adjusting the material thickness of the second reinforcing beam 9 during the die-casting process.

[0065] like Figure 1 and Figure 2 As shown, the front floor sill body structure also has a mounting beam 10, which is located between the central channel beam 1 and the left reinforcing beam 2. A brake pedal mounting component 104 protrudes from the mounting beam 10.

[0066] By installing the crossbeam 10, not only can the overall strength of the front floor sill body structure be enhanced, but the brake pedal mounting component can also be installed, eliminating the need for additional mounting structures, further reducing the number of parts and assembly steps.

[0067] Reference Figure 1 and Figure 2 The cross-sections of the central channel beam 1, left reinforcing beam 2, right reinforcing beam 3, front seat crossbeam 4, rear seat crossbeam 5, and front crossbeam 6 are all U-shaped in their respective width directions. This facilitates die casting.

[0068] like Figure 1 and Figure 4 As shown, the central channel beam 1 has an electrical module mounting bracket 103.

[0069] Understandably, the central channel beam 1 has an electrical module mounting bracket 103, through which the vehicle's electrical components can be installed, eliminating the need for additional mounting structures. This results in a higher degree of integration of the front floor sill body structure, further reducing the number of parts and assembly processes.

[0070] For example, in one specific implementation, refer to Figure 4 The aforementioned electrical module mounting brackets 103 are provided in four parts, arranged sequentially in the first direction. Alternatively, the number and position of the electrical module mounting brackets 103 can be set according to actual needs.

[0071] It should be noted that the electrical module mounting bracket 103 is located outside the U-shaped cavity of the center channel beam 1. Specifically, after the front floor sill body structure is installed on the vehicle, the opening of the U-shaped cavity faces downward, and the electrical module mounting bracket 103 is located on top of the center channel beam 1.

[0072] like Figure 1 As shown, the center channel beam 1 also has a CCB bracket mounting position 105. Specifically, the CCB bracket mounting position 105 includes two mounting holes, which are formed on the center channel beam 1 by machining after the front floor sill body structure is die-cast. Specifically, the CCB bracket mounting position 105 is located on the side wall of the center channel beam 1 in the second direction.

[0073] By setting a CCB bracket mounting position 105 on the central channel beam, the CCB bracket can be installed through the CCB bracket mounting position 105, eliminating the need for additional installation structures, resulting in a higher degree of integration of the front floor sill body structure, further reducing the number of parts and assembly steps.

[0074] like Figure 1 and Figure 4 As shown, both the front seat crossbeam 4 and the rear seat crossbeam 5 have multiple seat mounting bases 101.

[0075] Understandably, in existing technologies, seat mounting brackets are welded to the seat crossbeams. Due to manufacturing and installation errors, the consistency of multiple seat mounting brackets is poor, leading to vibration after seat installation and poor ride comfort. In contrast, the seat mounting brackets 101, front seat crossbeams 4, and rear seat crossbeams 5 in this front floor sill body structure are integrally formed, resulting in better consistency among the seat mounting brackets 101, improved seat installation stability, and enhanced ride comfort.

[0076] Reference Figure 5 After being die-cast, the seat mounting base 101 can have seat mounting holes 1011 formed on it, and threaded sleeves can be embedded in the seat mounting holes 1011 to improve the rigidity of the seat mounting base 101 and improve its sealing performance. In addition, the wall thickness of the seat mounting base 101 can be increased during die-casting, further improving the rigidity of the seat mounting base 101 and improving the installation stability of the seat.

[0077] For example, refer to Figure 1 and Figure 4The front seat crossbeam 4 has four seat mounting seats 101, arranged in pairs for mounting one seat. The rear seat crossbeam 5 also has four seat mounting seats 101, arranged in pairs for mounting one seat.

[0078] like Figure 1 and Figure 6 As shown, both the front seat crossbeam 4 and the rear seat crossbeam 5 have downwardly recessed grooves 102, and a third battery mounting hole 51 is provided on the bottom wall of the groove 102.

[0079] In other words, the battery is mounted on the front seat crossbeam 4 and the rear seat crossbeam 5, located below the front floor sill body structure. Integrating the battery mounting location into the front floor sill body structure eliminates the need for an additional battery mounting structure, reducing the number of parts. Specifically, the battery is bolted to the front seat crossbeam 4 and the rear seat crossbeam 5, with the bolts passing through a third battery mounting hole 51 to connect to the battery. After the bolts are connected to the battery, the bolt heads press against the front seat crossbeam 4 or the rear seat crossbeam 5.

[0080] Understandably, the vehicle's battery is mounted on the front seat crossbeam 4, the rear seat crossbeam 5, the first reinforcing beam 8, and the sill inner panel body 71. In other words, the weight of the battery is shared by the front seat crossbeam 4, the rear seat crossbeam 5, the first reinforcing beam 8, and the sill inner panel body 71, which improves the battery's installation stability.

[0081] It should be noted that the front floor sill body structure is integrally die-cast, which makes the dimensional accuracy of multiple seat mounting brackets 101, multiple electrical module mounting brackets 103, multiple sill trim mounting holes 7111, multiple wiring harness mounting holes 7112, multiple brake line mounting holes 7133, and multiple battery mounting holes more stable and consistent. Compared with assembling multiple parts, it can reduce the accumulation of dimensional tolerances.

[0082] In summary, the traditional front floor sill body structure consists of the front floor, the left front reinforcing beam of the front floor, the right front reinforcing beam of the front floor, the central tunnel, the left reinforcing crossbeam, the right reinforcing crossbeam, the front crossbeam assembly of the seat, the rear crossbeam assembly of the seat, the left rear reinforcing beam of the front floor, the right rear reinforcing beam of the front floor, and the sill inner panel assembly. These multiple stamped parts are spliced ​​together by welding, mechanical connection, and adhesive bonding. The number of parts is large and the structural design is complex. In contrast, the one-piece die-cast front floor sill body structure of this application has fewer parts and is lighter in weight. It improves the overall performance while significantly reducing the overall weight. It can reduce the number of parts by 54%, the connection cost by 28%, and the weight by 34%. The reduction in factory equipment investment and site area improves the efficiency of lightweight design, corrosion resistance and manufacturing efficiency. Furthermore, it encompasses the seat mounting base 101, the first battery mounting hole 7132, the second battery mounting hole 81, the third battery mounting hole 51, the electrical module mounting bracket 103, the CCB bracket mounting position 105, and the brake pedal mounting component 104, realizing the concept of integrated design.

[0083] This disclosure also provides a vehicle including the aforementioned front floor sill body structure. The vehicle possesses the beneficial effects of the front floor sill body structure described in the above embodiments, which will not be elaborated further here.

[0084] It should be noted that after the front floor sill body structure is installed on the vehicle, the first direction is the front-to-back direction of the vehicle, that is, the length direction of the vehicle; the second direction is the left-to-right direction of the vehicle, that is, the width direction of the vehicle.

[0085] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0086] The above description is merely a specific embodiment of this disclosure, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A front floor sill vehicle body structure, characterized in that, The front floor sill body structure includes a central channel beam, a left reinforcing beam, a right reinforcing beam, a front seat crossbeam, a rear seat crossbeam, a front crossbeam, and a sill inner panel assembly. The central channel beam, the left reinforcing beam, and the right reinforcing beam all extend along a first direction, and the left reinforcing beam and the right reinforcing beam are respectively located on both sides of the central channel beam in a second direction. The front seat crossbeam and the rear seat crossbeam both extend along the second direction and are spaced apart in the first direction. The central channel beam, the left reinforcing beam, and the right reinforcing beam are all connected to the front seat crossbeam. The left reinforcing beam and the right reinforcing beam are both connected to the front crossbeam, and the front crossbeam is inclined relative to the front seat crossbeam. Each of the front crossbeams is connected to a sill inner panel assembly. The sill inner panel assembly includes a sill inner panel body connected to the front crossbeam. In the second direction, the side of the sill inner panel body opposite to the front crossbeam has a cavity. The cavity is provided with a mesh-like first reinforcing rib. The first direction and the second direction are perpendicular to each other and located in the same plane.

2. The front floor sill body structure according to claim 1, characterized in that, The sill inner panel body includes a bottom plate, a connecting plate, and a top plate connected in sequence. The connecting plate is connected to the front seat crossbeam, the rear seat crossbeam, and the front crossbeam. The cavity is formed between the bottom plate, the connecting plate, and the top plate.

3. The front floor sill body structure according to claim 2, characterized in that, The base plate has at least one first thickness reinforcement area, and the first thickness reinforcement area has a first battery mounting hole into which a threaded sleeve for installing a battery extends.

4. The front floor sill body structure according to claim 2, characterized in that, The top plate is provided with threshold panel mounting holes and wire harness mounting holes; And / or, the base plate is provided with brake pipeline mounting holes.

5. The front floor sill body structure according to claim 2, characterized in that, Each of the inner sill plates has a second reinforcing rib on the side facing the front crossbeam.

6. The front floor sill body structure according to claim 1, characterized in that, Each of the front crossbeams is inclined away from the front seat crossbeam.

7. The front floor sill body structure according to claim 1, characterized in that, The front floor sill body structure also has a first reinforcing beam, which is provided between the middle channel beam and the left reinforcing beam, and between the middle channel beam and the right reinforcing beam. The two first reinforcing beams are symmetrically arranged about the middle channel beam.

8. The front floor sill body structure according to claim 1, characterized in that, The front floor sill body structure also has two second reinforcing beams, which extend along a first direction and connect between the front seat crossbeam and the rear seat crossbeam. The two second reinforcing beams are respectively positioned opposite the left reinforcing beam and the right reinforcing beam in the first direction.

9. The front floor sill body structure according to claim 1, characterized in that, The front floor sill body structure is integrally die-cast, and the material of the front floor sill body structure is aluminum alloy.

10. A vehicle, characterized in that, Includes the front floor sill body structure as described in any one of claims 1 to 9, wherein the first direction is the left-right direction of the vehicle, and the second direction is the front-rear direction of the vehicle.

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