Vehicle body assembly and vehicle

Abstract

The utility model discloses a vehicle body assembly and vehicle, relate to vehicle field, vehicle body assembly of vehicle includes: two tower bags, front wall lower crossbeam subassembly, two A columns, two tower bags are spaced along the width direction of vehicle, along the length direction of vehicle, and the front wall lower crossbeam subassembly is located tower bag rear side, and two tower bags are connected with front wall lower crossbeam subassembly, and the front wall lower crossbeam subassembly is connected between two A columns. Therefore, when frontal collision occurs, tower bag can bear frontal collision force, and since the front wall lower crossbeam subassembly is located tower bag rear side and two tower bags are connected with the front wall lower crossbeam subassembly, the X direction collision force that tower bag receives is borne and absorbs a part after by tower bag, can be borne by the front wall lower crossbeam subassembly and is transmitted to A column along Y direction, to bear frontal collision force through tower bag, A column, can effectively absorb, decompose the energy that collision produces, reduces the risk of personnel casualty that front cabin part invades passenger cabin causes, improves the security of vehicle.

Description

Technical Field

[0001] This utility model relates to the field of vehicles, and in particular to a vehicle body assembly and a vehicle. Background Technology

[0002] In related technologies, the vehicle body assembly structure needs to have excellent structural strength and collision performance to improve vehicle safety. However, the current vehicle body assembly structure design is unreasonable. In the event of a frontal collision, the front engine compartment components are prone to intruding into the passenger compartment, causing personal injury or death, and the vehicle's safety is insufficient. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of this utility model is to provide a vehicle body assembly that can effectively absorb and decompose the energy generated by a collision, reduce the risk of injury or death caused by front engine compartment components intruding into the passenger compartment, and improve vehicle safety.

[0004] This utility model further proposes a vehicle.

[0005] The vehicle body assembly according to this utility model includes: two tower blocks, a front lower crossbeam assembly, and two A-pillars. The two tower blocks are spaced apart along the width direction of the vehicle. Along the length direction of the vehicle, the front lower crossbeam assembly is located behind the tower blocks, and both tower blocks are connected to the front lower crossbeam assembly. The front lower crossbeam assembly is connected between the two A-pillars.

[0006] According to the vehicle body assembly of this utility model, when a frontal collision occurs, the tower pack can withstand the frontal collision force. Furthermore, since the front lower crossbeam assembly is located behind the tower pack and both tower packs are connected to the front lower crossbeam assembly, the X-direction collision force received by the tower pack, after being absorbed by the tower pack, can be absorbed by the front lower crossbeam assembly and transmitted to the A-pillar along the Y direction. In this way, the frontal collision force can be borne by the tower pack and the A-pillar, which can effectively absorb and decompose the energy generated by the collision, reduce the risk of personnel injury caused by the intrusion of front engine compartment components into the passenger compartment, and improve the safety of the vehicle.

[0007] In some examples of this utility model, the tower bag has a plurality of first mounting holes, and the front lower crossbeam assembly includes a plurality of first mounting members, the number of which is the same as the number of the first mounting holes and they are assembled in a one-to-one correspondence.

[0008] In some examples of this utility model, the front lower crossbeam assembly includes: a middle crossbeam and side crossbeams. The middle crossbeam includes: a middle crossbeam body and two bosses. Along the height direction of the vehicle, the bosses are arranged with the middle crossbeam body. Along the width direction of the vehicle, the two bosses are respectively located at both ends of the middle crossbeam body. Along the width direction of the vehicle, both ends of the middle crossbeam body are connected to the side crossbeams, and the two bosses are respectively connected to the two side crossbeams. The two side crossbeams are respectively connected to the two A-pillars.

[0009] In some examples of this utility model, the front lower crossbeam assembly further includes: a first connecting bracket, wherein the number of the first connecting bracket, the side crossbeam, the boss, and the tower bag are the same and correspond one-to-one;

[0010] The first connecting bracket includes: a first mounting plate, a second mounting plate, and a third mounting plate. The first mounting plate is connected to the second mounting plate and has an included angle. The first mounting plate is located on the side of the corresponding tower package facing the other tower package and is connected to the corresponding tower package. The second mounting plate is connected to the middle crossbeam body and the corresponding boss. The third mounting plate is connected to the first mounting plate and has an included angle. The third mounting plate is connected to the corresponding side crossbeam and is located at the lower end of the corresponding tower package and is connected to the corresponding tower package.

[0011] In some examples of this utility model, the side beam includes: a side beam body, the side beam body includes a first sub-body and a second sub-body, the first sub-body defines a first cavity, the second sub-body defines a second cavity, and the first sub-body and the second sub-body are arranged and connected along the length direction of the vehicle.

[0012] The first sub-body includes: a first base plate and a first top plate. The first base plate includes: a first sub-base plate and a second sub-base plate. The distance between the first sub-base plate and the first top plate is greater than the distance between the second sub-base plate and the first top plate.

[0013] The second sub-body includes: a second bottom plate and a second top plate. The second bottom plate includes: a third sub-bottom plate and a fourth sub-bottom plate. The distance between the third sub-bottom plate and the second top plate is greater than the distance between the fourth sub-bottom plate and the second top plate. The third sub-bottom plate and the second sub-bottom plate are directly opposite each other and connected along the length direction of the vehicle.

[0014] The crossbeam body includes a crossbeam top plate, which includes a first sub-top plate and a second sub-top plate. Along the length direction of the vehicle, the first sub-top plate and the second sub-top plate are arranged and connected. From the end of the first sub-top plate near the second sub-top plate to the end away from the second sub-top plate, the distance between the first sub-top plate and the boss gradually increases along the height direction of the vehicle.

[0015] In some examples of this utility model, the front lower crossbeam assembly further includes: a second connecting bracket, and the side crossbeam further includes: a first connecting plate. Along the height direction of the vehicle, the second top plate is offset from the first top plate, and the first connecting plate is connected between the first top plate and the second top plate. Along the length direction of the vehicle, the distance between the first connecting plate and the second bottom plate gradually changes. The first connecting plate corresponds to the first sub-top plate, and the second connecting bracket is connected to both the first connecting plate and the first sub-top plate.

[0016] In some examples of this utility model, the second connecting bracket includes a first sub-part and a second sub-part, the first sub-part and the second sub-part are connected and have an included angle, the first sub-part is connected to the first connecting plate and the first sub-top plate, and the second sub-part overlaps with the second top plate and the second sub-top plate.

[0017] In some examples of this utility model, the front lower crossbeam assembly further includes: a third connecting bracket, the third connecting bracket having the same number as the bosses and corresponding one-to-one, the third connecting bracket being located at the rear end of the corresponding boss and connected to both the corresponding boss and the side crossbeam along the length direction of the vehicle, the third connecting bracket including: a third sub-part and a fourth sub-part, the third sub-part and the fourth sub-part being connected and having an included angle, the third sub-part being connected to both the corresponding boss and the side crossbeam, and the fourth sub-part being connected to both the middle crossbeam body and the side crossbeam;

[0018] And / or, the front lower crossbeam assembly further includes: a fourth connecting bracket, the number of which is the same as and corresponds one-to-one with the side crossbeams, the fourth connecting bracket including a fourth mounting plate and a fifth mounting plate, the fourth mounting plate being connected to the fifth mounting plate and having an included angle, the fourth mounting plate being connected to the corresponding side crossbeam, and the fifth mounting plate being connected to the vehicle's tower pack.

[0019] In some examples of this utility model, the first connecting bracket further includes: at least one first reinforcing rib, the first reinforcing rib being connected between the first mounting plate and the second mounting plate, and at least one second reinforcing rib being provided in the boss, with at least one second reinforcing rib corresponding to the first reinforcing rib along the width direction of the vehicle.

[0020] The vehicle according to this utility model includes the aforementioned vehicle body assembly.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 This is a schematic diagram of the force transmission of the tower pack and the lower crossbeam assembly of the front bulkhead of the vehicle according to an embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the crossbeam according to an embodiment of the present utility model;

[0025] Figure 3 This is a front view of the middle crossbeam of the vehicle according to an embodiment of the present utility model;

[0026] Figure 4 This is a side view of the middle crossbeam of the vehicle according to an embodiment of the present utility model;

[0027] Figure 5 This is a bottom view of the middle crossbeam of the vehicle according to an embodiment of the present utility model;

[0028] Figure 6 This is a top view of the middle crossbeam of the vehicle according to an embodiment of the present utility model;

[0029] Figure 7 This is a schematic diagram of the structure of the first connecting bracket according to an embodiment of the present utility model;

[0030] Figure 8 This is a front view of the first connecting bracket according to an embodiment of the present utility model;

[0031] Figure 9 This is a side view of the first connecting bracket according to an embodiment of the present utility model;

[0032] Figure 10 This is a top view of the first connecting bracket according to an embodiment of the present utility model;

[0033] Figure 11 This is an assembly diagram of the front lower crossbeam assembly of a vehicle according to an embodiment of the present utility model;

[0034] Figure 12 This is a schematic diagram of the side beam structure according to an embodiment of the present utility model;

[0035] Figure 13 This is a structural schematic diagram of the side beam at another angle according to an embodiment of the present utility model;

[0036] Figure 14 This is a top view of the side beam according to an embodiment of the present utility model;

[0037] Figure 15 This is a schematic diagram of the tower pack and front lower crossbeam assembly of the vehicle according to an embodiment of the present utility model from another angle;

[0038] Figure 16 This is a schematic diagram of the tower bag according to an embodiment of the present utility model.

[0039] Figure label:

[0040] Front lower crossbeam assembly 98; Tower pack 6; First mounting hole 6112; A-pillar 99;

[0041] middle beam 8;

[0042] 81; third cavity 811; first sub-cavity 8111; top plate of crossbeam 812; first sub-top plate 8121; second sub-top plate 8122; bottom plate of crossbeam 813; side plate of crossbeam 814; plate 8141;

[0043] Boss 82; Fourth cavity 821; Second sub-cavity 8211; Boss side plate 822;

[0044] 83 cubic meters of clearance;

[0045] 84-inch overlap plate;

[0046] First partition plate 85;

[0047] Third partition 86; First sub-partition 861; Second sub-partition 862;

[0048] First connecting bracket 5;

[0049] First mounting plate 51; First mounting part 511;

[0050] Second mounting plate 52; Second mounting part 521; Recessed part 522;

[0051] Third mounting plate 53; Third mounting part 531; Fourth mounting part 532;

[0052] Fifth reinforcing member 54; First sub-reinforcing member 541; Second sub-reinforcing member 542.

[0053] Side beam 9;

[0054] Side beam body 91;

[0055] First sub-body 92; First cavity 921; First reinforcing member 922; First top plate 923; First bottom plate 924; First sub-bottom plate 925; Second sub-bottom plate 926; First mounting member 928; First flange 929; First mounting hole 930; Second flange 931; Second mounting hole 932; Third reinforcing member 933; Fourth reinforcing member 934;

[0056] Second sub-body 94; Second cavity 941; Second reinforcing member 942; Second top plate 943; Second bottom plate 944; Third sub-bottom plate 945; Fourth sub-bottom plate 946; Second mounting member 947;

[0057] Second connecting plate 95;

[0058] First connecting plate 96;

[0059] Increased capacity space 97; second connecting bracket 971; third flange 9711; first sub-part 9712; second sub-part 9713; third connecting bracket 973; third sub-part 9731; fourth connecting bracket 974; fourth mounting plate 9741; fifth mounting plate 9742. Detailed Implementation

[0060] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0061] The following is for reference. Figures 1-16 Describes a vehicle body assembly according to an embodiment of the present utility model.

[0062] like Figure 1 and Figure 15 As shown, the vehicle body assembly according to an embodiment of the present invention includes: two tower blocks 6, a front lower crossbeam assembly 98, and two A-pillars 99. The two tower blocks 6 are located along the width direction of the vehicle (i.e., Figure 1 , 3 (as shown in Y direction, 5, 6, 11) intervals; along the length direction of the vehicle (i.e. Figure 1 , 4 (As shown in X direction, 5, 6, 11), the lower front beam assembly 98 is located behind the tower pack 6, and both tower packs 6 are connected to the lower front beam assembly 98; the lower front beam assembly 98 is connected between the two A-pillars 99.

[0063] Among them, the two tower packages 6 are along the width direction of the vehicle (i.e. Figure 1 , 3The intervals shown in points 5, 6, and 11 (in the Y direction) are, in other words, along the width direction of the vehicle (i.e.,... Figure 1 , 3 (As shown in Y direction in 5, 6, 11), the two tower packages 6 are spaced apart, as some embodiments of this application, such as Figure 1 As shown, the two tower packages 6 are symmetrically spaced.

[0064] Along the length of the vehicle (i.e.) Figure 1 , 4 (As shown in the X direction of 5, 6, 11), the lower front crossbeam assembly 98 is located behind the tower pack 6. Both tower packs 6 are connected to the lower front crossbeam assembly 98. The connection between the two tower packs 6 and the lower front crossbeam assembly 98 can be direct or indirect. As some embodiments of this application, a bracket is provided between the two tower packs 6 and the lower front crossbeam assembly 98, and the two tower packs 6 are indirectly connected to the lower front crossbeam assembly 98 through the bracket. As some embodiments of this application, the two tower packs 6 and the lower front crossbeam assembly 98 are directly connected by bolts.

[0065] The lower front crossbeam assembly 98 is connected between two A-pillars 99. As some embodiments of this application, the lower front crossbeam assembly 98 is located between two A-pillars 99, and both ends of the lower front crossbeam assembly 98 are respectively connected to the two A-pillars 99. As some embodiments of this application, the connection between the lower front crossbeam assembly 98 and the two A-pillars 99 can be direct or indirect. As some embodiments of this application, both ends of the lower front crossbeam assembly 98 are directly connected to the two A-pillars 99 by riveting.

[0066] It should be noted that when a frontal collision occurs, the force of the frontal impact is transmitted to the two tower blocks 6. The two tower blocks 6 can withstand the frontal impact force and absorb a portion of it. The remaining impact force can be transmitted to the lower front crossbeam assembly 98, thereby converting the X-direction impact force into a Y-direction impact force (the force transmission direction is as follows). Figure 1 As shown), it reduces the risk of injury or death caused by the intrusion of front engine compartment components into the passenger compartment. Moreover, the front lower crossbeam assembly 98 can transfer the collision force to the A-pillar 99, so that the frontal collision force can be borne by the tower pack 6 and the A-pillar 99. The tower pack 6, the A-pillar 99, and the front lower crossbeam assembly 98 are constructed as a whole, which enables the vehicle body assembly to have excellent structural strength and collision performance.

[0067] Therefore, in the event of a frontal collision, the tower pack 6 can withstand the frontal collision force. Furthermore, since the lower front crossbeam assembly 98 is located behind the tower pack 6 and both tower packs 6 are connected to the lower front crossbeam assembly 98, the X-direction collision force received by the tower pack 6, after being absorbed by the tower pack 6, can be absorbed by the lower front crossbeam assembly 98 and transmitted along the Y direction to the A-pillar 99. Thus, the frontal collision force can be borne by the tower pack 6 and the A-pillar 99, effectively absorbing and decomposing the energy generated by the collision, reducing the risk of personnel injury caused by the intrusion of front engine compartment components into the passenger compartment, and improving vehicle safety.

[0068] In some embodiments of this utility model, such as Figure 12 and Figure 16 As shown, the tower package 6 has multiple first mounting holes 6112, and the front lower crossbeam assembly 98 includes multiple first mounting parts 928. The number of first mounting parts 928 is the same as the number of first mounting holes 6112, and they are assembled in a one-to-one correspondence.

[0069] The front lower crossbeam assembly 98 includes a first mounting member 928. In some embodiments of this application, the first mounting member 928 can be configured as a mounting post with threaded holes. The tower mount 6 has a first mounting hole 6112. In some embodiments of this application, the first mounting hole 6112 can be configured as a through hole corresponding to the threaded hole, allowing bolts to pass through the first mounting hole 6112 and engage with the first mounting member 928, so that the first mounting member 928 is assembled with the tower mount 6 of the vehicle, thereby connecting the front lower crossbeam assembly 98 to the tower mount 6 of the vehicle.

[0070] This arrangement facilitates the connection between the tower pack 6 and the lower front crossbeam assembly 98, and also allows for a high connection strength between the tower pack 6 and the lower front crossbeam assembly 98.

[0071] As some embodiments of this application, the axial direction of the first mounting hole 6112 is parallel to the X direction of the vehicle. When a frontal collision occurs, the shear force at the first mounting member 928 is small, reducing the risk of breakage of the first mounting member 928.

[0072] As some embodiments of this application, such as Figure 12 and Figure 16 As shown, there are multiple first mounting components 928, and these multiple first mounting components 928 are arranged along the height direction of the vehicle (i.e., Figure 1 , 3 The first mounting holes 6112 are arranged at intervals in the Z direction as shown in 4, 7, and 11; there are multiple first mounting holes 6112, and the number of first mounting holes 6112 is the same as that of the first mounting parts 928 and they are matched and assembled one by one.

[0073] The number of first mounting components 928 can be multiple, and the multiple first mounting components 928 are arranged along the height direction of the vehicle (i.e., Figure 1 ,3 The first mounting members 928 are arranged at intervals in the Z direction (as shown in 4, 7, and 11). The number of first mounting members 928 can be, but is not limited to, two or three. As some embodiments of this application, the number of first mounting members 928 is three, and the three first mounting members 928 are arranged along the height direction of the vehicle (i.e., Figure 1 , 3 The Z-direction (as shown in 4, 7, and 11) is arranged at intervals.

[0074] The number of first mounting holes 6112 can be multiple and the number of first mounting parts 928 is the same as that of first mounting parts 928. The number of first mounting holes 6112 and first mounting parts 928 are the same and they are matched one-to-one for assembly.

[0075] This configuration allows for a stronger connection between the tower pack 6 and the lower front crossbeam assembly 98, reducing the risk of separation between the tower pack 6 and the lower front crossbeam assembly 98.

[0076] In some embodiments of this utility model, such as Figure 1 , Figure 11 , Figure 15 As shown, the front lower crossbeam assembly 98 includes: a middle crossbeam 8 and side crossbeams 9. The middle crossbeam 8 includes: a middle crossbeam body 81 and two bosses 82, along the height direction of the vehicle (i.e., Figure 1 , 3 The boss 82 and the middle crossbeam body 81 are arranged in the Z direction (as shown in 4, 7, and 11), and are along the width direction of the vehicle (i.e., Figure 1 , 3 The two bosses 82 are located at both ends of the middle crossbeam body 81, along the width direction of the vehicle (i.e., Y direction as shown in 5, 6, and 11). Figure 1 , 3 (As shown in Y direction in 5, 6, 11), both ends of the central crossbeam body 81 are connected to the side crossbeams 9, and the two protrusions 82 are respectively connected to the two side crossbeams 9, and the two side crossbeams 9 are respectively connected to the two A-columns 99.

[0077] Among them, such as Figure 3 and Figure 4 As shown, along the height direction of the vehicle (i.e. Figure 1 , 3 (As shown in the Z direction of 4, 7, 11), the bosses 82 and the middle crossbeam body 81 are arranged together. Specifically, the two bosses 82 are located on the same side of the middle crossbeam body 81. The bosses 82 are connected to the middle crossbeam body 81. As some embodiments of this application, the connection method between the bosses 82 and the middle crossbeam body 81 can be, but is not limited to, welding, or the bosses 82 and the middle crossbeam body 81 can be integrally formed.

[0078] Along the width direction of the vehicle (i.e.) Figure 1 , 3(As shown in Y direction, 5, 6, 11), two protrusions 82 are arranged at intervals, and the two protrusions 82 are located at both ends of the middle crossbeam body 81.

[0079] Along the width direction of the vehicle (i.e.) Figure 1 , 3 (As shown in Y direction in 5, 6, 11), both ends of the middle crossbeam body 81 are connected to the side crossbeams 9. The connection between the side crossbeams 9 and the middle crossbeam body 81 can be direct or indirect.

[0080] The two protrusions 82 are respectively connected to the two side beams 9. The connection between the side beams 9 and the protrusions 82 can be direct or indirect. As some embodiments of this application, a bracket is provided between the side beams 9 and the protrusions 82, and the side beams 9 and the protrusions 82 are indirectly connected through the bracket. As some embodiments of this application, the side beams 9 and the protrusions 82 are directly connected by riveting.

[0081] As some embodiments of this application, the two side beams 9 are respectively connected to the two A-pillars 99 of the vehicle. The connection method between the side beams 9 and the A-pillars 99 can be, but is not limited to, welding, bolting, etc. As some embodiments of this application, the side beams 9 and the A-pillars 99 are connected by riveting.

[0082] As some embodiments of this application, such as Figure 2 and Figure 3 As shown, the central crossbeam body 81 and the two bosses 82 together define a clearance space 83, which can accommodate other components of the vehicle. For example, the clearance space 83 can accommodate part of the high-voltage wiring harness between the front engine compartment and the power battery, or the clearance space 83 can accommodate part of the braking system piping.

[0083] As some embodiments of this application, the tower pack 6 can be connected to the front lower crossbeam assembly 98. The forward collision force borne by the tower pack 6 can be transferred to the middle crossbeam 8 and the side crossbeam 9. By providing the boss 82, the connection area between the middle crossbeam 8 and the side crossbeam 9 can be increased, facilitating the connection between the middle crossbeam 8 and the side crossbeam 9. The boss 82 can also act as an oblique support, making the connection between the middle crossbeam 8 and the side crossbeam 9 tighter under the action of gravity. This also helps the middle crossbeam 8 to disperse the collision energy to both sides, reducing the risk of stress concentration and reducing the direct impact on the passenger compartment. Furthermore, the side crossbeam 9 can distribute the collision energy along the width direction of the vehicle (i.e., Figure 1 , 3The energy is transferred from the Y-direction (as shown in 5, 6, and 11) to the A-pillar 99. This arrangement enhances the rigidity of the entire vehicle structure, reduces deformation of the vehicle structure under collision or dynamic load, and improves the stability and safety of the vehicle. Furthermore, it can effectively disperse and absorb collision energy, reducing the direct impact on the passenger compartment and thus protecting the safety of the occupants. In addition, during vehicle operation, especially at high speeds or during sharp turns, it can enhance the lateral stability of the vehicle, reduce body roll and sway, and improve driving control and comfort.

[0084] As some embodiments of this application, both the middle crossbeam 8 and the side crossbeam 9 can be made of aluminum. For example, the middle crossbeam 8 can be made of extruded aluminum, and the side crossbeam 9 can be made of die-cast aluminum.

[0085] Moreover, by connecting both ends of the middle crossbeam body 81 with side crossbeams 9, the structure of the front lower crossbeam assembly 98 can be made simple and reasonable. The Y-axis dimension of the front lower crossbeam assembly 98 can be changed simply by changing the Y-axis dimension of the middle crossbeam body 81 between the two side crossbeams 9. When it is necessary to match different models, only the extrusion length of the middle crossbeam 8 needs to be changed, thereby greatly improving the versatility and adaptability of the front lower crossbeam assembly 98.

[0086] Furthermore, by providing the boss 82, the connection area between the middle crossbeam 8 and other components can be increased, making it easier to connect the middle crossbeam 8 with other components and making the connection between the middle crossbeam 8 and other components tighter. This helps the middle crossbeam 8 to disperse collision energy to both sides, reduce the risk of stress concentration, and improve the safety performance of the vehicle. By having the middle crossbeam body 81 and the boss 82 jointly define the clearance space 83, other components of the vehicle can be accommodated through the clearance space 83, reducing the difficulty of arranging vehicle parts.

[0087] It should be noted that the length direction of the vehicle mentioned in this application (i.e., Figure 1 , 4 The X direction shown in 5, 6, and 11 is the vehicle's X-direction, and the vehicle's width direction (i.e., the...) Figure 1 , 3 The Y-direction shown in Figures 5, 6, and 11 is the Y-direction of the vehicle, and the height direction of the vehicle (i.e., the height direction) is the height direction of the vehicle. Figure 1 , 3 The Z-direction shown in 4, 7, and 11 is the Z-direction of the vehicle, which will not be elaborated further below.

[0088] Therefore, by connecting both ends of the middle crossbeam body 81 to the side crossbeams 9, and connecting the two bosses 82 to the two side crossbeams 9 respectively, the Y-axis dimension of the front lower crossbeam assembly 98 can be changed simply by changing the Y-axis dimension of the middle crossbeam body 81. When different vehicle models need to be matched, only the extrusion length of the middle crossbeam 8 needs to be changed, thereby significantly improving the adaptability of the vehicle's front lower crossbeam assembly 98 and helping to reduce vehicle development costs.

[0089] In some embodiments of this utility model, such as Figures 7-10 , Figure 15 As shown, the front lower crossbeam assembly 98 also includes: a first connecting bracket 5, and the first connecting bracket 5, side crossbeam 9, boss 82, and tower 6 are the same in number and correspond one-to-one;

[0090] The first connecting bracket 5 includes: a first mounting plate 51, a second mounting plate 52, and a third mounting plate 53. The first mounting plate 51 is connected to the second mounting plate 52 and has an included angle. The first mounting plate 51 is located on the side of the corresponding tower pack 6 facing the other tower pack 6 and is connected to the corresponding tower pack 6. The second mounting plate 52 is connected to the middle crossbeam body 81 and the corresponding boss 82. The third mounting plate 53 is connected to the first mounting plate 51 and has an included angle. The third mounting plate 53 is connected to the corresponding side crossbeam 9 and is located at the lower end of the corresponding tower pack 6 and is connected to the corresponding tower pack 6.

[0091] In this embodiment, the first connecting bracket 5, the side crossbeam 9, the boss 82, and the tower package 6 are all the same in number and correspond one-to-one. This is one example of the embodiments described in this application. Figure 15 As shown, there are two first connecting brackets 5, which are arranged at intervals along the Y direction of the vehicle. The number of first connecting brackets 5, side crossbeams 9, bosses 82, and towers 6 are the same and correspond one-to-one.

[0092] The first mounting plate 51 is connected to the second mounting plate 52. The connection between the first mounting plate 51 and the second mounting plate 52 can be, but is not limited to, welding, bolt connection, etc. As an embodiment of this application, the first mounting plate 51 and the second mounting plate 52 are connected by welding. As an embodiment of this application, the first mounting plate 51 and the second mounting plate 52 are integrally formed.

[0093] The first mounting plate 51 and the second mounting plate 52 have an included angle. The included angle between the first mounting plate 51 and the second mounting plate 52 can be, but is not limited to, 45 degrees, 60 degrees, 90 degrees, etc. As an embodiment of this application, the included angle between the first mounting plate 51 and the second mounting plate 52 is 90 degrees.

[0094] The first mounting plate 51 is connected to the third mounting plate 53. The connection between the first mounting plate 51 and the third mounting plate 53 can be, but is not limited to, welding, bolt connection, etc. As an embodiment of this application, the first mounting plate 51 and the third mounting plate 53 are connected by welding. As an embodiment of this application, the first mounting plate 51 and the third mounting plate 53 are integrally formed.

[0095] The first mounting plate 51 and the third mounting plate 53 have an included angle. The included angle between the first mounting plate 51 and the third mounting plate 53 can be, but is not limited to, 45 degrees, 60 degrees, 90 degrees, etc. As an embodiment of this application, the included angle between the first mounting plate 51 and the third mounting plate 53 is 90 degrees.

[0096] As an embodiment of this application, the angle between the first mounting plate 51 and the second mounting plate 52 is 90 degrees, the angle between the first mounting plate 51 and the third mounting plate 53 is 90 degrees, and the first mounting plate 51, the second mounting plate 52, and the third mounting plate 53 are not coplanar.

[0097] The first mounting plate 51 is located on the side of the corresponding tower pack 6 facing the other tower pack 6 and is connected to the corresponding tower pack 6. As an embodiment of this application, the first mounting plate 51 is located between the two tower packs 6 and can be connected to the corresponding tower pack 6. The second mounting plate 52 is connected to the middle crossbeam body 81 and the corresponding boss 82. As an embodiment of this application, the connection method between the first mounting plate 51 and the tower pack 6 can be, but is not limited to, welding connection, bolt connection, riveting, etc.

[0098] The third mounting plate 53 is located at the lower end of the corresponding tower pack 6 and is connected to the corresponding tower pack 6. As an embodiment of this application, the third mounting plate 53 is located at the lower end of the corresponding tower pack 6, and the third mounting plate 53 is connected to the corresponding side beam 9 and the corresponding tower pack 6. As an embodiment of this application, the connection method between the third mounting plate 53 and the corresponding side beam 9 and the tower pack 6 can be, but is not limited to, welding connection, bolt connection, riveting, etc.

[0099] As some embodiments of this application, such as Figure 7 As shown, the first connecting bracket 5 further includes a fifth reinforcing member 54, which is connected to at least one of the first mounting plate 51, the second mounting plate 52, and the third mounting plate 53. That is, the fifth reinforcing member 54 is connected to one of the first mounting plate 51, the second mounting plate 52, and the third mounting plate 53, or multiple of the first mounting plate 51, the second mounting plate 52, and the third mounting plate 53.

[0100] As one embodiment of this application, such as Figure 7As shown, the fifth reinforcing member 54 is connected to the first mounting plate 51. In one embodiment of this application, the fifth reinforcing member 54 is connected to both the first mounting plate 51 and the second mounting plate 52.

[0101] It should be noted that the first connecting bracket 5 can be assembled with the tower 6, the middle crossbeam 8, and the side crossbeam 9 simultaneously. Furthermore, the first connecting bracket 5 has good structural strength and rigidity, which can improve the overall integrity and modal performance of the vehicle's front engine compartment. Under dynamic load or vibration environments, it can reduce loosening and fatigue damage at the connection points. In addition, the first connecting bracket 5 has a simple structure and is easy to assemble.

[0102] By making the first mounting plate 51 and the second mounting plate 52 form an angle, and the third mounting plate 53 and the first mounting plate 51 form an angle, the first connecting bracket 5 can be assembled with the tower 6, the middle crossbeam 8, and the side crossbeam 9 respectively. Furthermore, by connecting the fifth reinforcing member 54 with at least one of the first mounting plate 51, the second mounting plate 52, and the third mounting plate 53, the structural strength and rigidity of the first connecting bracket 5 can be improved, the risk of loosening between the first connecting bracket 5 and the tower 6 can be reduced, and the NVH performance of the vehicle's front engine compartment can be improved.

[0103] As some embodiments of this application, such as Figure 7 As shown, any two of the first mounting plate 51, the second mounting plate 52, and the third mounting plate 53 are perpendicular to each other.

[0104] In other words, the first mounting plate 51 is perpendicular to the second mounting plate 52, the first mounting plate 51 is perpendicular to the third mounting plate 53, and the third mounting plate 53 is perpendicular to the second mounting plate 52. This arrangement makes the structure of the first connecting bracket 5 simple and reasonable, with good structural strength and rigidity, which can reduce the manufacturing difficulty of the first connecting bracket 5. Moreover, this makes it easier for the first connecting bracket 5 to connect to the tower bag 6, making it more convenient to use.

[0105] As some embodiments of this application, such as Figure 7 As shown, along the height direction of the vehicle (i.e. Figure 1 , 3 (as shown in Z direction in 4, 7, 11), the third mounting plate 53 is located at the same end of the first mounting plate 51 and the second mounting plate 52.

[0106] That is to say, along the height direction of the vehicle (i.e. Figure 1 , 3 (As shown in Z direction in 4, 7, 11), the first mounting plate 51 and the second mounting plate 52 each have two opposite ends, and the third mounting plate 53 is located at the same end of the first mounting plate 51 and the second mounting plate 52. In other words, the third mounting plate 53 is located on the same side of the first mounting plate 51 and the second mounting plate 52.

[0107] This design makes the structure of the first connecting bracket 5 simple and reasonable, facilitates the connection of different components to the first connecting bracket 5, makes it easy to use, and can support the tower pack 6 and the side crossbeam 9 through the third mounting plate 53 of the first connecting bracket 5, thereby improving the stability of the front engine compartment.

[0108] As some embodiments of this application, such as Figures 7-9 As shown, the fifth reinforcing member 54 includes: a first sub-reinforcing member 541, which is connected to both the first mounting plate 51 and the second mounting plate 52.

[0109] The first sub-reinforcing member 541 is connected to the first mounting plate 51. The connection between the first sub-reinforcing member 541 and the first mounting plate 51 can be, but is not limited to, welding, bolting, etc. As an embodiment of this application, the first sub-reinforcing member 541 and the first mounting plate 51 are connected by welding. As an embodiment of this application, the first sub-reinforcing member 541 and the first mounting plate 51 are integrally formed.

[0110] The first sub-reinforcing member 541 is connected to the second mounting plate 52. The connection method between the first sub-reinforcing member 541 and the second mounting plate 52 can be, but is not limited to, welding or bolting. In one embodiment of this application, the first sub-reinforcing member 541 and the second mounting plate 52 are connected by welding. In another embodiment of this application, the first sub-reinforcing member 541 and the second mounting plate 52 are integrally formed. In yet another embodiment of this application, the first sub-reinforcing member 541, the second mounting plate 52, and the first mounting plate 51 are integrally formed.

[0111] It is understood that the first mounting plate 51 is connected to the second mounting plate 52 at an angle, and the first sub-reinforcing member 541 can be connected between the first mounting plate 51 and the second mounting plate 52.

[0112] This configuration significantly improves the structural strength and stiffness of the first connecting bracket 5, enhances the stability of the connection between the first mounting plate 51 and the tower 6, and between the second mounting plate 52 and the middle crossbeam 8, thus improving modal performance. Furthermore, under dynamic loads or vibration environments, it reduces the risk of loosening and fatigue damage at the connection points. Upon impact, the first sub-reinforcing member 541 provides support, reducing the probability of plastic deformation in the first connecting bracket 5.

[0113] As some embodiments of this application, such as Figures 7-9 As shown, there are multiple first sub-reinforcing members 541, arranged along the height direction of the vehicle (i.e., Figure 1 , 3 (As shown in Z direction 4, 7, 11), multiple first sub-reinforcing members 541 are arranged at intervals.

[0114] The number of first sub-reinforcing members 541 can be multiple, including but not limited to two or three. As some embodiments of this application, the number of first sub-reinforcing members 541 is three, with the three first sub-reinforcing members 541 arranged along the height direction of the vehicle (i.e.,...). Figure 1 , 3 Arranged at intervals in the Z direction as shown in 4, 7, and 11.

[0115] This configuration can further improve the structural strength and rigidity of the first connecting bracket 5, and improve the stability of the connection between the first mounting plate 51 and the tower 6, and between the second mounting plate 52 and the middle crossbeam 8, which is beneficial to improving modal performance.

[0116] As some embodiments of this application, such as Figure 7 As shown, at least one first sub-reinforcing member 541 has a triangular cross-section.

[0117] In other words, among the multiple first sub-reinforcing members 541, one of the first sub-reinforcing members 541 has a triangular cross-section, or, among the multiple first sub-reinforcing members 541, all of the first sub-reinforcing members 541 have triangular cross-sections. As some embodiments of this application, the number of first sub-reinforcing members 541 is three, and the cross-sections of the three first sub-reinforcing members 541 are all triangular.

[0118] By making the cross-section of at least one first sub-reinforcing member 541 triangular, the structural strength and stiffness of the first sub-reinforcing member 541 can be improved, thereby improving the structural strength and stiffness of the first connecting bracket 5, and also improving the stability of the connection between the components connected to the first mounting plate 51 and the components connected to the second mounting plate 52, which is beneficial to improving modal performance and the NVH performance of the vehicle.

[0119] As some embodiments of this application, such as Figure 7 As shown, one of the first sub-reinforcing members 541 is coplanar with the third mounting plate 53.

[0120] That is, among the plurality of first sub-reinforcing members 541, one of the first sub-reinforcing members 541 is coplanar with the third mounting plate 53. As some embodiments of this application, the three first sub-reinforcing members 541 are along the height direction of the vehicle (i.e., Figure 1 , 3 The three first sub-reinforcing members 541 are arranged at intervals in the Z direction (as shown in 4, 7, and 11), with the lowest first sub-reinforcing member 541 being coplanar with the third mounting plate 53.

[0121] This design can further improve the structural strength and rigidity of the first connecting bracket 5, and reduce the risk of bending and breaking of the third mounting plate 53, which is beneficial to the stability and reliability of the first connecting bracket 5.

[0122] As some embodiments of this application, such as Figures 7-9 As shown, the first mounting plate 51 has a plurality of first mounting portions 511, and the second mounting plate 52 has a plurality of second mounting portions 521, along the height direction of the vehicle (i.e., Figure 1 , 3 (As shown in Z direction 4, 7, 11), a first mounting part 511 and a second mounting part 521 are provided between any two first sub-reinforcing members 541. The first mounting part 511 is assembled with the tower package 6, and the second mounting part 521 is assembled with the middle crossbeam body 81 and the boss 82.

[0123] The first mounting plate 51 has a plurality of first mounting portions 511. In other words, the first mounting portions 511 are formed on the first mounting plate 51. The number of first mounting portions 511 is multiple, and the number of first mounting portions 511 can be, but is not limited to, two, three, four, etc. As some embodiments of this application, the number of first mounting portions 511 is seven.

[0124] The second mounting plate 52 has a plurality of second mounting portions 521. In other words, the second mounting portions 521 are formed on the second mounting plate 52. The number of the second mounting portions 521 is multiple. The number of the second mounting portions 521 can be, but is not limited to, two, three, four, etc. As some embodiments of this application, the number of the second mounting portions 521 is three.

[0125] like Figure 9 As shown, along the height direction of the vehicle (i.e. Figure 1 , 3 In the Z direction shown in Figures 4, 7, and 11, a first mounting portion 511 and a second mounting portion 521 are provided between any two first sub-reinforcing members 541. That is, a first mounting portion 511 and a second mounting portion 521 are provided between any two first sub-reinforcing members 541. In other words, the first mounting portion 511 and the second mounting portion 521 can be provided between any two first sub-reinforcing members 541. As some embodiments of this application, the number of first sub-reinforcing members 541 is three, and the three first sub-reinforcing members 541 are arranged along the height direction of the vehicle (i.e.,...). Figure 1 , 3 Arranged at intervals in the Z direction as shown in Figures 4, 7, and 11, each of the first sub-reinforcing members 541 has a first mounting part 511 and a second mounting part 521 between any two first sub-reinforcing members 541. The first mounting part 511 is assembled with the tower package 6, and the second mounting part 521 is assembled with the middle crossbeam body 81 and the boss 82.

[0126] By providing a first mounting part 511 and a second mounting part 521 between any two first sub-reinforcing members 541, the arrangement of the first mounting part 511, the second mounting part 521, and the first sub-reinforcing member 541 can be made reasonable, which can improve the strength of the connection, reduce the risk of loosening and fatigue damage at the connection, and help improve the reliability and stability of the first connecting bracket 5.

[0127] As some embodiments of this application, such as Figure 9 As shown, along the height direction of the vehicle (i.e. Figure 1 , 3 (As shown in Z direction 4, 7, 11), the uppermost first sub-reinforcing member 541 has a first mounting part 511 on the side away from the other first sub-reinforcing members 541.

[0128] As some embodiments of this application, such as Figure 7 and Figure 8 As shown, the second mounting plate 52 has a recess 522, and the second mounting portion 521 is located in the recess 522.

[0129] As some embodiments of this application, along the height direction of the vehicle (i.e. Figure 1 , 3 (As shown in Z direction in 4, 7, 11), at least one recess 522 is provided between the two first sub-reinforcing members 541, and the second mounting part 521 between the two first sub-reinforcing members 541 is located in the corresponding recess 522.

[0130] This configuration allows for precise positioning of the second mounting part 521, facilitating the production of correctly positioned second mounting parts 521. It also facilitates the assembly of the second mounting part 521 with the middle crossbeam body 81 and the boss 82, and provides installation space for bolts and nuts installed in the second mounting part 521, making operation easier.

[0131] As some embodiments of this application, such as Figures 7-9 As shown, the fifth reinforcing member 54 further includes a second sub-reinforcing member 542, which is disposed on the edge of the third mounting plate 53 and extends in a direction away from the first mounting plate 51.

[0132] The second sub-reinforcing member 542 is disposed at the edge of the third mounting plate 53, and the second sub-reinforcing member 542 extends in a direction away from the first mounting plate 51, specifically along the height direction of the vehicle (i.e., Figure 1 , 3(as shown in Z direction 4, 7, 11), the second sub-reinforcing member 542 has a side close to the third mounting plate 53 and a side away from the third mounting plate 53. The side of the second sub-reinforcing member 542 close to the third mounting plate 53 is connected to the third mounting plate 53, and the side of the third mounting plate 53 away from the third mounting plate 53 extends in a direction away from the first mounting plate 51.

[0133] This design improves the structural strength and rigidity of the third mounting plate 53, and its reasonable placement reduces the probability of bending due to localized stress concentration in the third mounting plate 53.

[0134] As some embodiments of this application, such as Figure 7 and Figure 8 As shown, the third mounting plate 53 has at least one third mounting part 531 and at least one fourth mounting part 532. The third mounting part 531 is assembled with the first mounting plate 51 and the tower 6, and the fourth mounting part 532 is assembled with the first mounting plate 51 and the side beam 9.

[0135] The third mounting plate 53 has at least one third mounting portion 531 and at least one fourth mounting portion 532. That is, the third mounting plate 53 has one third mounting portion 531 and one fourth mounting portion 532, or one third mounting portion 531 and multiple fourth mounting portions 532, or multiple third mounting portions 531 and one fourth mounting portion 532, or multiple third mounting portions 531 and multiple fourth mounting portions 532. As some embodiments of this application, the third mounting plate 53 has two third mounting portions 531 and two fourth mounting portions 532.

[0136] As some embodiments of this application, the first mounting part 511 and the third mounting part 531 are both assembled with the vehicle's tower pack 6, and the fourth mounting part 532 is assembled with the side crossbeam 9 in the front lower crossbeam assembly 98.

[0137] This arrangement allows the tower pack 6 and the side crossbeam 9 to be connected via the first connecting bracket 5, which helps improve the overall integrity of the vehicle components. Furthermore, by connecting the tower pack 6 with the first mounting part 511 and the third mounting part 531, the connection between the tower pack 6 and the first connecting bracket 5 can be strengthened, which helps improve the overall modal performance of the vehicle components.

[0138] As some embodiments of this application, the first mounting part 511, the second mounting part 521, the third mounting part 531, and the fourth mounting part 532 can all be constructed as mounting through holes, and the connection method between the first connecting bracket 5 and the corresponding component can be, but is not limited to, bolt connection, riveting, etc.

[0139] In some embodiments of this utility model, such as Figures 11-14 As shown, the side crossbeam 9 includes: a side crossbeam body 91, the side crossbeam body 91 including a first sub-body 92 and a second sub-body 94, the first sub-body 92 defining a first cavity 921, and the second sub-body 94 defining a second cavity 941, along the length direction of the vehicle (i.e., Figure 1 , 4 (as shown in X direction, 5, 6, 11), the first sub-body 92 and the second sub-body 94 are arranged and connected;

[0140] The first sub-body 92 includes: a first base plate 924 and a first top plate 923. The first base plate 924 includes: a first sub-base plate 925 and a second sub-base plate 926. The distance between the first sub-base plate 925 and the first top plate 923 is greater than the distance between the second sub-base plate 926 and the first top plate 923.

[0141] The second sub-body 94 includes: a second base plate 944 and a second top plate 943. The second base plate 944 includes: a third sub-base plate 945 and a fourth sub-base plate 946. The distance between the third sub-base plate 945 and the second top plate 943 is greater than the distance between the fourth sub-base plate 946 and the second top plate 943. Furthermore, the third sub-base plate 945 and the second sub-base plate 946 are located along the length direction of the vehicle (i.e.,...). Figure 1 , 4 (As shown in the X direction in points 5, 6, and 11) are aligned and connected;

[0142] The middle crossbeam body 81 includes: a crossbeam top plate 812, the crossbeam top plate 812 including a first sub-top plate 8121 and a second sub-top plate 8122, along the length direction of the vehicle (i.e. Figure 1 , 4 (As shown in X direction in 5, 6, 11), the first sub-top plate 8121 and the second sub-top plate 8122 are arranged and connected. From the end of the first sub-top plate 8121 near the second sub-top plate 8122 to the end away from the second sub-top plate 8122, the first sub-top plate 8121 and the boss 82 are along the height direction of the vehicle (i.e., Figure 1 , 3 The spacing in the Z direction (as shown in 4, 7, and 11) gradually increases.

[0143] The side beam body 91 includes a first sub-body 92 and a second sub-body 94, which are connected together. The connection method of the first sub-body 92 and the second sub-body 94 can be, but is not limited to, welding, snap-fitting, riveting, etc. As some embodiments of this application, the first sub-body 92 and the second sub-body 94 are connected by bolts. As some embodiments of this application, the first sub-body 92 and the second sub-body 94 are integrally formed.

[0144] Along the length of the vehicle (i.e.) Figure 1 ,4 The first sub-body 92 and the second sub-body 94 are arranged along the length direction of the vehicle (i.e., the X direction shown in 5, 6, and 11). Figure 1 , 4 (as shown in X direction in 5, 6, 11), the first sub-body 92 is located in front of the second sub-body 94.

[0145] The first sub-body 92 defines a first cavity 921, and the second sub-body 94 defines a second cavity 941. The first cavity 921 and the second cavity 941 are not connected to each other, and are located along the length of the vehicle (i.e., Figure 1 , 4 (As shown in X direction in 5, 6, 11), the first cavity 921 is open at one end away from the second cavity 941, and the second cavity 941 is open at one end away from the first cavity 921.

[0146] The first sub-body 92 includes a first reinforcing member 922, and the second sub-body 94 includes a second reinforcing member 942. Both the first reinforcing member 922 and the second reinforcing member 942 are along the width direction of the vehicle (i.e., Figure 1 , 3 The side beam body 91 is constructed as an integral part, as shown in the Y direction (as indicated by 5, 6, 11). The first reinforcing member 922 is provided in the first cavity 921, and the second reinforcing member 942 is provided in the second cavity 941.

[0147] It should be noted that the first cavity 921 and the second cavity 941 are defined by the first sub-body 92 and the second sub-body 94, respectively, and the first reinforcing member 922 is positioned along the width direction of the vehicle (i.e., Figure 1 , 3 The first cavity 921 is extended in the Y direction (as shown in 5, 6, and 11), and the second reinforcing member 942 is located along the width direction of the vehicle (i.e., Figure 1 , 3 Extending in the Y direction (as shown in 5, 6, 11) and located in the second cavity 941, when a vehicle collision occurs, the force of the frontal collision is transmitted along the tower 6 to the lower front crossbeam assembly 98, and then transmitted along the Y direction of the vehicle to the A-pillar 99 through the first reinforcing member 922 and the second reinforcing member 942 of the side crossbeam body 91. This arrangement can enhance the rigidity of the overall body structure, reduce the deformation of the body structure under collision or dynamic load, and help improve the stability and safety of the body. In addition, it can effectively disperse and absorb collision energy, reduce the direct impact on the passenger compartment, and thus protect the safety of the occupants. Furthermore, during vehicle operation, especially at high speed or during sharp turns, it can enhance the lateral stability of the vehicle, reduce body roll and sway, and improve driving control and comfort.

[0148] This configuration allows the force of a collision to be transmitted to the A-pillar 99 through the first reinforcing member 922 and the second reinforcing member 942 when the vehicle is involved in a collision. It has better force transmission performance and can effectively disperse and absorb impact energy, resulting in better safety. It also helps to improve the lateral stability of the vehicle and improve driving control and comfort.

[0149] As some embodiments of this application, such as Figure 12 As shown, there is one first reinforcing member 922, or there are multiple first reinforcing members 922, with the multiple first reinforcing members 922 arranged along the height direction of the vehicle (i.e., Figure 1 , 3 Arranged at intervals in the Z direction as shown in 4, 7, and 11.

[0150] In other words, the number of first reinforcing members 922 can be, but is not limited to, one, two, three, etc. As some embodiments of this application, the number of first reinforcing members 922 is one, and one first reinforcing member 922 is along the width direction of the vehicle (i.e., Figure 1 , 3 (Extends in the Y direction as shown in 5, 6, and 11).

[0151] As some embodiments of this application, the number of first reinforcing members 922 is three, and all three first reinforcing members 922 are along the width direction of the vehicle (i.e., Figure 1 , 3 The three first reinforcing members 922 extend along the Y direction (as shown in 5, 6, and 11), and extend along the height direction of the vehicle (i.e., Figure 1 , 3 Arranged at intervals in the Z direction as shown in 4, 7, and 11.

[0152] This configuration increases the Y-axis force transmission path of the side beam 9, which is beneficial to improving the structural strength and force transmission performance of the side beam 9.

[0153] As some embodiments of this application, such as Figure 13 As shown, there is one second reinforcing member 942, or there are multiple second reinforcing members 942, with the multiple second reinforcing members 942 arranged along the height direction of the vehicle (i.e., Figure 1 , 3 Arranged at intervals in the Z direction as shown in 4, 7, and 11.

[0154] In other words, the number of second reinforcing members 942 can be, but is not limited to, one, two, three, etc. As some embodiments of this application, the number of second reinforcing members 942 is one, and one second reinforcing member 942 is along the width direction of the vehicle (i.e., Figure 1 , 3 The Y-direction extension settings are shown in 5, 6, and 11.

[0155] As some embodiments of this application, the number of second reinforcing members 942 is three, and all three second reinforcing members 942 are along the width direction of the vehicle (i.e., Figure 1 , 3 The three second reinforcing members 942 extend along the Y direction (as shown in 5, 6, and 11), and extend along the height direction of the vehicle (i.e., Figure 1 , 3 Arranged at intervals in the Z direction as shown in 4, 7, and 11.

[0156] This configuration increases the Y-axis force transmission path of the side beam 9, which is beneficial to improving the structural strength and force transmission performance of the side beam 9.

[0157] Along the height direction of the vehicle (i.e.) Figure 1 , 3 (As shown in Z direction in 4, 7, 11), the distance between the first sub-bottom plate 925 and the first top plate 923 is greater than the distance between the second sub-bottom plate 926 and the first top plate 923.

[0158] As some embodiments of this application, among the plurality of first reinforcing members 922, one first reinforcing member 922 and the second sub-base plate 926 are along the width direction of the vehicle (i.e. Figure 1 , 3 The Y direction shown in 5, 6, and 11 is aligned and connected.

[0159] By making the distance between the first sub-base plate 925 and the first top plate 923 greater than the distance between the second sub-base plate 926 and the first top plate 923, the first sub-base plate 925 and the second sub-base plate 926 can be aligned along the height direction of the vehicle (i.e., Figure 1 , 3 The staggered arrangement (as shown in Z direction, 4, 7, 11) allows the height of the first sub-base plate 925 to match the height of the bottom surface of the tower package 6, and the height of the second sub-base plate 926 to match the height of the bottom surface of the A-column 99. This facilitates the transmission of collision force from the tower package 6 to the side beam 9, and from the side beam 9 to the A-column 99, thereby improving the force transmission performance of the side beam 9.

[0160] Along the height direction of the vehicle (i.e.) Figure 1 , 3 In the Z direction (as shown in 4, 7, 11), the distance between the third sub-base plate 945 and the second top plate 943 is greater than the distance between the fourth sub-base plate 946 and the second top plate 943, and the distance between the third sub-base plate 945 and the second sub-base plate 926 along the length direction of the vehicle (i.e., Figure 1 , 4 The X directions shown in 5, 6, and 11 are aligned and connected, meaning that the third sub-base plate 945 and the second sub-base plate 926 have the same height.

[0161] As some embodiments of this application, a second reinforcing member 942 and a fourth sub-base plate 946 are along the width direction of the vehicle (i.e. Figure 1 , 3 The Y direction shown in 5, 6, and 11 is aligned and connected.

[0162] As some embodiments of this application, the third sub-base plate 945 and the second sub-base plate 926 are constructed as an integral molded part, such that the third sub-base plate 945 and the second sub-base plate 926 are aligned along the width direction of the vehicle (i.e., Figure 1 , 3 The Y-direction shown in 5, 6, and 11 is directly opposite and connected.

[0163] This arrangement allows the heights of the third sub-base plate 945 and the second sub-base plate 926 to match the bottom height of the A-pillar 99, which is beneficial for the side beam 9 to transmit the collision force to the A-pillar 99 and improves the force transmission performance of the side beam 9. By making the distance between the third sub-base plate 945 and the second top plate 943 greater than the distance between the fourth sub-base plate 946 and the second top plate 943, it is convenient to install other components at the bottom of the fourth sub-base plate 946.

[0164] As some embodiments of this application, such as Figure 11 and Figure 13 As shown, the second sub-body 94 also includes a second mounting member 947, which is adapted to be assembled with the vehicle's power battery.

[0165] The second mounting member 947 can be assembled with the vehicle's power battery. As some embodiments of this application, the second mounting member 947 can be constructed as a mounting post with a threaded hole. The vehicle's power battery has a through hole corresponding to the threaded hole. A bolt can be inserted into the through hole and mate with the threaded hole so that the second mounting member 947 can be assembled with the vehicle's power battery.

[0166] This configuration provides mounting points for the vehicle's power battery via the side crossbeam 9, improving the reliability of the power battery's fixation. Furthermore, it allows the power battery to be integrated into the overall vehicle structure, enhancing the vehicle's torsional resistance.

[0167] As some embodiments of this application, such as Figure 11 and Figure 13 As shown, there are multiple second mounting members 947, at least a portion of which is housed in the second cavity 941, and the second mounting member 947 is connected to the fourth sub-base plate 946.

[0168] The number of second mounting members 947 can be multiple, including but not limited to two or three. As some embodiments of this application, the number of second mounting members 947 is two. Multiple second mounting members 947 can be arranged along the length direction of the vehicle (i.e.,...). Figure 1 , 4 The multiple second mounting pieces 947 are arranged in the X direction (as shown in 5, 6, and 11), and can also be arranged along the width direction of the vehicle (i.e., Figure 1 , 3 As shown in Figures 5, 6, and 11 (in the Y direction), the multiple second mounting members 947 are arranged along the length direction of the vehicle (i.e., Figure 1 , 4 The second mounting components 947 sets are arranged in the X direction (as shown in 5, 6, and 11) to form a plurality of second mounting components 947 sets along the width direction of the vehicle (i.e., Figure 1 , 3 The Y-direction layout is shown in Figures 5, 6, and 11.

[0169] At least a portion of the second mounting member 947 is housed in the second cavity 941, that is, a portion of the second mounting member 947 is housed in the second cavity 941, or the entire second mounting member 947 is housed in the second cavity 941. The second mounting member 947 is connected to the fourth sub-base plate 946. As some embodiments of this application, a portion of the second mounting member 947 is housed in the second cavity 941, and the second mounting member 947 can pass through and be connected to the fourth sub-base plate 946. As some embodiments of this application, the entire second mounting member 947 is housed in the second cavity 941, and the second mounting member 947 is connected to the fourth sub-base plate 946.

[0170] This arrangement allows for a more rational placement of the second mounting component 947, improving its structural strength and rigidity. This, in turn, enhances the connection stability between the side crossbeam 9 and the power battery connection point, reliably integrating the power battery into the overall vehicle structure and improving the vehicle's torsional rigidity. Furthermore, this arrangement allows for better alignment along the vehicle's height direction (i.e.,...). Figure 1 , 3 The addition of a force transmission channel (as shown in Z direction, 4, 7, 11) is beneficial to improving the structural strength and force transmission performance of the side beam 9.

[0171] The front lower crossbeam assembly 98 includes a plurality of first mounting members 928. Specifically, the first subbody 92 includes a plurality of first mounting members 928.

[0172] The first sub-body 92 also includes: multiple third reinforcing members 933, along the height direction of the vehicle (i.e., Figure 1 , 3 Each first mounting member 928 has a third reinforcing member 933 connected to both ends; and / or, the first sub-body 92 further includes: a plurality of fourth reinforcing members 934, the plurality of fourth reinforcing members 934 being arranged along the height direction of the vehicle (i.e., in the Z direction shown in 4, 7, 11). Figure 1 , 3The components are arranged at intervals in the Z direction (as shown in 4, 7, and 11), and each first mounting component 928 corresponds to a fourth reinforcing component 934, and are arranged along the width direction of the vehicle (i.e., Figure 1 , 3 (as shown in Y direction in 5, 6, 11), at least one fourth reinforcing member 934 is directly opposite to at least one first reinforcing member 922.

[0173] Among them, there are multiple third reinforcing members 933, arranged along the height direction of the vehicle (i.e. Figure 1 , 3 In the Z direction shown in 4, 7, and 11, each of the first mounting members 928 is connected to two ends with a third reinforcing member 933. The number of third reinforcing members 933 can be, but is not limited to, two or three. As some embodiments of this application, the number of third reinforcing members 933 is six, along the height direction of the vehicle (i.e., Figure 1 , 3 (As shown in the Z direction of 4, 7, and 11), each of the first mounting members 928 is connected to a third reinforcing member 933 at both ends. This arrangement improves the structural strength of the first mounting member 928, enhances the stability of the connection between the side beam 9 and the tower 6, and can also improve stability along the height direction of the vehicle (i.e., along the Z direction of 4, 7, and 11). Figure 1 , 3 The addition of a force transmission channel (as shown in Figures 4, 7, and 11 in the Z direction) is beneficial for improving the force transmission path and the overall stability of the vehicle. As some embodiments of this application, the third reinforcing member 933 is all along the height direction of the vehicle (i.e.,...). Figure 1 , 3 The third reinforcement 933 is connected between the two first mounting members 928 (as shown in the Z direction, 4, 7, 11).

[0174] The fourth reinforcing component 934 is multiple, located along the height direction of the vehicle (i.e., Figure 1 , 3 (As shown in the Z direction of 4, 7, 11), a plurality of fourth reinforcing members 934 are arranged at intervals. The number of fourth reinforcing members 934 can be, but is not limited to, two or three. At least one fourth reinforcing member 934 is directly opposite to at least one first reinforcing member 922. That is, among the plurality of fourth reinforcing members 934, one fourth reinforcing member 934 is directly opposite to one first reinforcing member 922, or among the plurality of fourth reinforcing members 934, multiple fourth reinforcing members 934 are directly opposite to multiple first reinforcing members 922.

[0175] As some embodiments of this application, the number of fourth reinforcing members 934 is four, along the height direction of the vehicle (i.e., Figure 1 , 3As shown in the Z direction (as indicated by 4, 7, and 11), four fourth reinforcing members 934 are arranged at intervals. Each first mounting member 928 corresponds to a fourth reinforcing member 934. Among the four fourth reinforcing members 934, three fourth reinforcing members 934 are directly opposite three first mounting members 928. This arrangement can improve the structural strength of the first mounting member 928, improve the stability of the connection between the side crossbeam 9 and the middle crossbeam 8, and, along the width direction of the vehicle (i.e., Figure 1 , 3 Adding a force transmission channel (as shown in Y direction, 5, 6, 11) helps improve the force transmission path and the overall stability of the vehicle.

[0176] As some embodiments of this application, at least one fourth reinforcing member 934 includes two sub-members, the two sub-members being along the width direction of the vehicle (i.e. Figure 1 , 3 The Y-direction (as shown in 5, 6, and 11) is respectively located on both sides of the corresponding first mounting component 928.

[0177] Along the height direction of the vehicle (i.e.) Figure 1 , 3 (As shown in the Z direction of 4, 7, 11), the first sub-top plate 8121 and the second sub-top plate 8122 are arranged and connected. As some embodiments of this application, the first sub-top plate 8121 and the second sub-top plate 8122 can be fixedly connected. For example, the connection method of the first sub-top plate 8121 and the second sub-top plate 8122 can be, but is not limited to, welding connection, riveting, etc., or the first sub-top plate 8121 and the second sub-top plate 8122 can be integrally formed.

[0178] From the end of the first sub-top plate 8121 near the second sub-top plate 8122 to the end away from the second sub-top plate 8122, the first sub-top plate 8121 and the boss 82 are along the height direction of the vehicle (i.e., Figure 1 , 3 The spacing in the Z direction (as shown in 4, 7, 11) gradually increases. As some embodiments of this application, the first sub-top plate 8121 can be constructed as an arc-shaped plate; as some embodiments of this application, the first sub-top plate 8121 can be constructed as a flat plate. Furthermore, along the length direction of the vehicle (i.e.,...) Figure 1 , 4 (As shown in X direction in 5, 6, 11), the first sub-top plate 8121 is located in front of the second sub-top plate 8122.

[0179] This arrangement makes the structure of the top plate 812 of the crossbeam reasonable. The first sub-top plate 8121 can smoothly transfer part of the force transmitted by the middle crossbeam 8 to the second sub-top plate 8122, reducing the risk of stress concentration and improving the reliability of the middle crossbeam 8.

[0180] As some embodiments of this application, such as Figure 4 and Figure 6As shown, the middle crossbeam 8 also includes: an overlap plate 84, along the length direction of the vehicle (i.e., Figure 1 , 4 (in the X direction shown in 5, 6, 11), the overlapping plate 84 is connected to the end of the first sub-top plate 8121 away from the second sub-top plate 8122, the overlapping plate 84 is adapted to be connected to the front bulkhead of the vehicle, and the second sub-top plate 8122 is adapted to be connected to the front floor of the vehicle.

[0181] Among them, along the length direction of the vehicle (i.e. Figure 1 , 4 (As shown in X direction in 5, 6, 11), the overlapping plate 84 is connected to the end of the first sub-top plate 8121 away from the second sub-top plate 8122. As some embodiments of this application, the connection method between the overlapping plate 84 and the first sub-top plate 8121 can be welding or riveting, or the overlapping plate 84 and the first sub-top plate 8121 can be integrally formed.

[0182] The overlapping plate 84 is adapted to connect with the front bulkhead of the vehicle, and the second sub-roof plate 8122 is adapted to connect with the front floor of the vehicle. As some embodiments of this application, the overlapping plate 84 can be located below the front bulkhead and connected to it. The connection method between the overlapping plate 84 and the front bulkhead can be, but is not limited to, bolt connection, riveting, etc. As some embodiments of this application, the second sub-roof plate 8122 can be located below the front floor. As some embodiments of this application, the second sub-roof plate 8122 can be located above the front floor. The connection method between the second sub-roof plate 8122 and the front floor can be, but is not limited to, bolt connection, riveting, etc. Furthermore, the upper surface of the second sub-roof plate 8122 can serve as a foot surface for occupants.

[0183] This configuration allows the middle crossbeam 8 to be connected to the front bulkhead and front floor, integrating the front bulkhead and front floor into the overall vehicle structure, thus improving the vehicle's torsional resistance. Furthermore, the first sub-roof plate 8121 can smoothly transfer some of the force transmitted by the middle crossbeam 8 to the second sub-roof plate 8122 and front floor, reducing the risk of stress concentration.

[0184] As some embodiments of this application, such as Figure 4 As shown, the upper surface of the second sub-top plate 8122 is planar, and / or the upper surface of the overlapping plate 84 is planar.

[0185] The upper surface of the second sub-top plate 8122 is planar, or the upper surface of the overlapping plate 84 is planar, or the upper surface of the second sub-top plate 8122 is planar, and the upper surface of the overlapping plate 84 is planar.

[0186] The upper surface of the second sub-roof plate 8122 is flat. As some embodiments of this application, the second sub-roof plate 8122 can be located below the front floor of the vehicle. The upper surface of the second sub-roof plate 8122 is fitted and connected to the front floor. The connection between the second sub-roof plate 8122 and the front floor can be, but is not limited to, bolt connection, riveting, etc. In addition, the upper surface of the second sub-roof plate 8122 can serve as a foot surface for occupants.

[0187] By constructing the upper surface of the second sub-top plate 8122 as a plane, the contact area between the second sub-top plate 8122 and the front floor can be increased, which facilitates connection and improves connection strength.

[0188] The upper surface of the lap plate 84 is flat. As some embodiments of this application, the lap plate 84 can be located below the front bulkhead of the vehicle. The upper surface of the lap plate 84 mates with and connects to the front bulkhead. The connection method between the lap plate 84 and the front bulkhead can be, but is not limited to, bolt connection, riveting, etc.

[0189] By constructing the upper surface of the overlap plate 84 as a plane, the contact area between the overlap plate 84 and the front bulkhead can be increased, making the connection easier and improving the connection strength.

[0190] As some embodiments of this application, such as Figure 4 As shown, the middle crossbeam 8 also includes: a first partition plate 85, the middle crossbeam body 81 defining a third cavity 811 and also includes: a crossbeam bottom plate 813, the crossbeam top plate 812 and the crossbeam bottom plate 813 along the height direction of the vehicle (i.e. Figure 1 , 3 The first partition plate 85 is connected between the top plate 812 and the bottom plate 813 of the crossbeam to divide the third cavity 811 into two first sub-cavities 8111, spaced along the height direction of the vehicle (i.e., Z-direction). Figure 1 , 3 (as shown in Z direction in 4, 7, 11), one of the first sub-cavities 8111 is directly opposite the boss 82 and has a larger cross-sectional area than the other first sub-cavity 8111.

[0191] In some embodiments of this application, the third cavity 811 is along the width direction of the vehicle (i.e. Figure 1 , 3 The Y-direction (as shown in 5, 6, 11) penetrates through the middle crossbeam body 81, meaning the middle crossbeam body 81 is constructed as a hollow structure.

[0192] The top plate 812 and the bottom plate 813 of the crossbeam are along the height direction of the vehicle (i.e. Figure 1 , 3 The intervals are shown in the Z direction (as indicated by numbers 4, 7, and 11), that is, along the height direction of the vehicle (i.e.,...). Figure 1 , 3In the Z direction (as shown in 4, 7, 11), the top plate 812 and the bottom plate 813 of the crossbeam have a certain distance. As some embodiments of this application, along the height direction of the vehicle (i.e., Figure 1 , 3 (As shown in Z direction in 4, 7, 11), the top plate 812 of the crossbeam can be located at the upper end of the bottom plate 813 of the crossbeam.

[0193] The first partition plate 85 connects the top plate 812 and the bottom plate 813 of the crossbeam, dividing the third cavity 811 into two first sub-cavities 8111. As some embodiments of this application, along the height direction of the vehicle (i.e., Figure 1 , 3 (As shown in the Z direction of 4, 7, 11), the first partition plate 85 is located between the top plate 812 and the bottom plate 813 of the crossbeam, and one end of the first partition plate 85 is connected to the top plate 812 of the crossbeam, and the other end of the first partition plate 85 is connected to the bottom plate 813 of the crossbeam. As some embodiments of this application, the connection between the first partition plate 85 and the top plate 812 and the bottom plate 813 of the crossbeam can be welded, or the first partition plate 85 and the top plate 812 and the bottom plate 813 of the crossbeam can be integrally formed.

[0194] As some embodiments of this application, along the height direction of the vehicle (i.e. Figure 1 , 3 (As shown in Z direction in 4, 7, 11), the first partition plate 85 can be arranged perpendicular to the bottom plate 813 of the crossbeam, that is, the first partition plate 85 is arranged perpendicular to the X direction of the vehicle.

[0195] Along the height direction of the vehicle (i.e. Figure 1 , 3 (as shown in Z direction in sections 4, 7, and 11), one of the first sub-cavities 8111 is directly opposite the boss 82 and has a larger cross-sectional area than the other first sub-cavity 8111. As some embodiments of this application, along the length direction of the vehicle (i.e., Figure 1 , 4 The two first sub-cavities 8111 are arranged in the X direction (as shown in 5, 6, 11), with the first sub-cavity 8111 located at the front along the height direction of the vehicle (i.e., Figure 1 , 3 The first sub-cavity 8111 (as shown in Z direction 4, 7, 11) is directly opposite the boss 82 and is located in front of it. The cross-sectional area of ​​the first sub-cavity 8111 is larger than the cross-sectional area of ​​the other first sub-cavity 8111.

[0196] By aligning one of the first sub-cavities 8111 directly with the boss 82, the bending and compressive strength of the middle crossbeam 8 can be improved. This makes the middle crossbeam 8 more stable and reliable when the vehicle is subjected to a collision or large dynamic loads, improving vehicle safety performance and extending the service life of the middle crossbeam 8. Furthermore, by making the cross-sectional area of ​​the front first sub-cavity 8111 larger than that of the rear first sub-cavity 8111, it is beneficial to direct collision energy from the larger cross-sectional area first sub-cavity 8111 along the width direction of the vehicle (i.e., Figure 1 , 3 The impact is dispersed in the Y direction (as shown in 5, 6, and 11), thereby reducing the direct impact on the passenger compartment and further improving the vehicle's safety performance.

[0197] As some embodiments of this application, such as Figure 4 As shown, one end of the first partition plate 85 connected to the top plate of the crossbeam 812 is connected between the end of the first sub-top plate 8121 near the second sub-top plate 8122 and the end away from the second sub-top plate 8122, or one end of the first partition plate 85 connected to the top plate of the crossbeam 812 is connected at the connection between the first sub-top plate 8121 and the second sub-top plate 8122.

[0198] This arrangement allows for a reasonable connection position of the first partition plate 85, which can improve the deformation resistance of the first sub-cavity 8111 directly opposite the boss 82, thereby increasing the bending and compressive strength of the middle crossbeam 8. This makes the middle crossbeam 8 of this application more stable and reliable when the vehicle is subjected to a collision or bears a large dynamic load, thus improving the vehicle's safety performance.

[0199] As some embodiments of this application, such as Figure 4 As shown, the boss 82 includes: two boss side plates 822, the two boss side plates 822 being along the length direction of the vehicle (i.e., Figure 1 , 4 The middle crossbeam body 81 also includes two crossbeam side plates 814, spaced at intervals in the X direction (as shown in 5, 6, and 11), and the two crossbeam side plates 814 are arranged along the length direction of the vehicle (i.e., ...). Figure 1 , 4 (As shown in X direction, 5, 6, 11) The top plate 812, one side plate 814, the bottom plate 813, and the other side plate 814 of the crossbeam are connected end to end in sequence along the height direction of the vehicle (i.e., Figure 1 , 3 (As shown in Z direction in 4, 7, 11), one of the beam side plates 814 is directly opposite one of the boss side plates 822, and the first partition plate 85 is directly opposite the other boss side plate 822.

[0200] Among them, the two boss side plates 822 are along the length direction of the vehicle (i.e. Figure 1 , 4The intervals shown in points 5, 6, and 11 (in the X direction) are, in other words, along the length of the vehicle (i.e.,...). Figure 1 , 4 The two boss side plates 822 are spaced apart, as some embodiments of this application, and are arranged in parallel. The two crossbeam side plates 814 are along the length direction of the vehicle (i.e.,...). Figure 1 , 4 The intervals shown in points 5, 6, and 11 (in the X direction) are, in other words, along the length of the vehicle (i.e.,...). Figure 1 , 4 (as shown in X direction, 5, 6, 11), the two crossbeam side plates 814 are spaced apart. As some embodiments of this application, the two crossbeam side plates 814 are arranged in parallel.

[0201] A top beam 812, a side beam 814, a bottom beam 813, and another side beam 814 are connected end-to-end. In some embodiments of this application, the top beam 812 corresponds to the bottom beam 813, and one side beam 814 corresponds to another side beam 814. These components are connected end-to-end to form a third cavity 811. In some embodiments of this application, the connection method between any two adjacent components can be, but is not limited to, welding or integral molding.

[0202] Along the height direction of the vehicle (i.e.) Figure 1 , 3 In the Z direction shown in 4, 7, and 11, one of the crossbeam side plates 814 is directly opposite to one of the boss side plates 822, and the first partition plate 85 is directly opposite to the other boss side plate 822. As some embodiments of this application, along the height direction of the vehicle (i.e., Figure 1 , 3 (As shown in Z direction 4, 7, 11), the beam side plate 814 near the lap plate 84 is directly opposite the boss side plate 822 near the lap plate 84, and the first partition plate 85 is directly opposite the boss side plate 822 away from the lap plate 84. As some embodiments of this application, the beam side plate 814 and the corresponding boss side plate 822 can be integrally formed.

[0203] As some embodiments of this application, such as Figure 2 As shown, the central crossbeam body 81 has a plate 8141, which is riveted to the crossbeam side plate 814. Nuts are pre-embedded in the plate 8141, allowing bolts to pass through the second mounting part 521 and the side crossbeam 9 and connect with the pre-embedded nuts, thus connecting the central crossbeam 8, the side crossbeam 9, and the first connecting bracket 5. This arrangement allows for a reasonable positional arrangement of the two boss side plates 822 and the two crossbeam side plates 814, improving the bending and compressive strength of the central crossbeam 8.

[0204] As some embodiments of this application, such as Figure 4 As shown, the middle crossbeam 8 also includes: a second partition plate (not shown in the figure), the second partition plate being connected between the first sub-top plate 8121 and the crossbeam side plate 814 connected to the first sub-top plate 8121, the second partition plate being in the height direction of the vehicle (i.e., Figure 1 , 3 (The Z direction shown in 4, 7, and 11) is perpendicular.

[0205] In some embodiments of this application, one end of the second partition plate is connected to the first sub-top plate 8121, and the other end of the second partition plate is connected to the crossbeam side plate 814. Furthermore, the second partition plate is positioned relative to the vehicle's height direction (i.e.,...). Figure 1 , 3 The Z-direction shown in Figures 4, 7, and 11 is perpendicular to the height direction of the vehicle (i.e., the normal of the second partition plate is perpendicular to the height direction of the vehicle). Figure 1 , 3 (The Z direction shown in 4, 7, 11) is parallel. As some embodiments of this application, the connection between the second partition plate and the first sub-top plate 8121 and the crossbeam side plate 814 can be, but is not limited to, welding or integral molding.

[0206] As some embodiments of this application, one end of the second partition plate connected to the first sub-top plate 8121 is connected between the end of the first sub-top plate 8121 near the second sub-top plate 8122 and the end away from the second sub-top plate 8122, or one end of the second partition plate connected to the first sub-top plate 8121 is connected at the connection between the first sub-top plate 8121 and the second sub-top plate 8122.

[0207] In some embodiments of this application, the first partition plate 85 and the second partition plate are staggered, for example, the first partition plate 85 and the second partition plate are orthogonally arranged. In some embodiments of this application, the connection method between the first partition plate 85 and the second partition plate can be, but is not limited to, welding or integral molding.

[0208] This arrangement allows the second partition plate, the crossbeam side plate 814, and the first sub-top plate 8121 to form a triangular structure, which can significantly improve the structural strength and rigidity of the middle crossbeam body 81 and enhance the reliability of the middle crossbeam 8.

[0209] As some embodiments of this application, such as Figure 4 As shown, the middle crossbeam 8 also includes: a third partition plate 86, a boss 82 defining a fourth cavity 821, and the third partition plate 86 is disposed in the fourth cavity 821 to divide the fourth cavity 821 into a plurality of second sub-cavities 8211.

[0210] The boss 82 defines a fourth cavity 821. In some embodiments of this application, the fourth cavity 821 is located along the width direction of the vehicle (i.e., Figure 1 , 3 The Y-direction (as shown in 5, 6, 11) penetrates the boss 82, meaning the boss 82 is constructed as a hollow structure. The third partition plate 86 is provided in the fourth cavity 821 to divide the fourth cavity 821 into multiple second sub-cavities 8211.

[0211] As some embodiments of this application, there are multiple third partition plates 86, each including at least one first sub-partition plate 861 and at least one second sub-partition plate 862, with the first sub-partition plate 861 and the second sub-partition plate 862 being arranged alternately.

[0212] As some embodiments of this application, the number of third partitions 86 is multiple, and the multiple third partitions 86 may include first sub-partitions 861 and second sub-partitions 862. The number of first sub-partitions 861 can be one or more, and the number of second sub-partitions 862 can be one or more. As some embodiments of this application, the first sub-partitions 861 are along the length direction of the vehicle (i.e., Figure 1 , 4 Extending in the X direction (as shown in 5, 6, 11), when there are multiple first sub-partitions 861, the multiple first sub-partitions 861 extend along the height direction of the vehicle (i.e., Figure 1 , 3 The second sub-partition plate 862 is arranged at intervals along the height direction of the vehicle (as shown in the Z direction, 4, 7, 11). Figure 1 , 3 Extending in the Z direction (as shown in 4, 7, 11), when there are multiple second sub-partitions 862, the multiple second sub-partitions 862 extend along the length direction of the vehicle (i.e., Figure 1 , 4 The sub-separators 861 and 862 are arranged at intervals in the X direction as shown in Figures 5, 6, and 11. Furthermore, the first sub-separator 861 and the second sub-separator 862 are staggered, for example, the first sub-separator 861 and the second sub-separator 862 are orthogonally arranged.

[0213] As some embodiments of this application, such as Figure 4 As shown, the plurality of third partitions 86 include a first sub-partition 861 and two second sub-partitions 862. As some embodiments of this application, the first sub-partition 861 is along the length direction of the vehicle (i.e., Figure 1 , 4 Extending in the X direction (as shown in 5, 6, 11), both second sub-partitions 862 are along the height direction of the vehicle (i.e., Figure 1 , 3 Extending in the Z direction (as shown in 4, 7, 11), the two second sub-partitions 862 extend along the length direction of the vehicle (i.e., Figure 1 , 4The sub-separators 861 and 862 are arranged at intervals in the X direction as shown in Figures 5, 6, and 11. Furthermore, the first sub-separator 861 and the second sub-separator 862 are orthogonally arranged.

[0214] This design can improve the structural strength of the boss 82, enhance its resistance to deformation, and thus improve the bending and compressive strength of the middle crossbeam 8. This makes the middle crossbeam 8 of this application more stable and reliable when the vehicle is subjected to a collision or a large dynamic load, thereby improving the vehicle's safety performance.

[0215] As some embodiments of this application, at least one first sub-reinforcing member 541 is correspondingly arranged with the first sub-partition plate 861. This arrangement can increase the bending strength and compressive strength of the front lower crossbeam assembly 98, making it more stable and reliable when subjected to larger loads, and more conducive to transmitting force to the A-pillar 99.

[0216] In some embodiments of this utility model, such as Figure 4 and Figure 11 As shown, the front lower crossbeam assembly 98 also includes: a second connecting bracket 971, and the side crossbeam 9 also includes: a first connecting plate 96, along the height direction of the vehicle (i.e., Figure 1 , 3 (As shown in Z direction in sections 4, 7, and 11), the second top plate 943 is offset from the first top plate 923, and the first connecting plate 96 connects the first top plate 923 and the second top plate 943 along the length direction of the vehicle (i.e., along the Z direction). Figure 1 , 4 (As shown in X direction in 5, 6, 11), the distance between the first connecting plate 96 and the second base plate 944 gradually changes. The first connecting plate 96 corresponds to the first sub-top plate 8121. The second connecting bracket 971 is connected to both the first connecting plate 96 and the first sub-top plate 8121.

[0217] Among them, along the height direction of the vehicle (i.e. Figure 1 , 3 The second top plate 943 is offset from the first top plate 923 (as shown in Z direction in sections 4, 7, and 11). That is, along the height direction of the vehicle (i.e.,...) Figure 1 , 3 (As shown in the Z direction of 4, 7, 11), the second top plate 943 and the first top plate 923 have different heights. The first connecting plate 96 connects the first top plate 923 and the second top plate 943. The connection method between the first connecting plate 96 and the first top plate 923 can be, but is not limited to, welding, bolting, etc. The connection method between the first connecting plate 96 and the second top plate 943 can be, but is not limited to, welding, bolting, etc. As some embodiments of this application, the first connecting plate 96, the first top plate 923, and the second top plate 943 are integrally formed.

[0218] As some embodiments of this application, along the length direction of the vehicle (i.e. Figure 1 , 4 (As shown in X direction in 5, 6, 11), the first connecting plate 96 has one end near the front of the vehicle and one end away from the front of the vehicle. From the end of the first connecting plate 96 near the front of the vehicle to the end away from the front of the vehicle, the distance between the first connecting plate 96 and the second base plate 944 gradually decreases.

[0219] The first connecting plate 96 corresponds to the first sub-top plate 8121. For example, the first connecting plate 96 and the first sub-top plate 8121 are along the width direction of the vehicle (i.e., Figure 1 , 3 The first connecting bracket 971 is arranged and aligned with the first connecting plate 96 and the first sub-top plate 8121 (as shown in Y direction in Figures 5, 6, and 11). In some embodiments of this application, the connection between the second connecting bracket 971 and the first connecting plate 96 can be, but is not limited to, a bolted connection. In some embodiments of this application, at least a portion of the second connecting bracket 971 is disposed on the upper surface of the first connecting plate 96 and the first sub-top plate 8121.

[0220] This configuration improves the connection stability between the side crossbeam 9 and the middle crossbeam 8, which is beneficial to improving the overall modal performance of the front lower crossbeam assembly 98. It also helps to smoothly transition the collision force, reduce the direct impact on the passenger compartment, and facilitates the transmission, dispersion, and absorption of collision energy, thereby improving the lateral stability of the vehicle.

[0221] As some embodiments of this application, such as Figure 11 , Figure 13 and Figure 14 As shown, the side crossbeam 9 also includes: a second connecting plate 95, along the height direction of the vehicle (i.e., Figure 1 , 3 (As shown in Z direction 4, 7, 11), the second top plate 943 is offset from the first top plate 923, and the second connecting plate 95 is connected between the first top plate 923 and the second top plate 943. The first top plate 923, the second top plate 943, and the second connecting plate 95 together define the expansion space 97.

[0222] Among them, along the height direction of the vehicle (i.e. Figure 1 , 3 The second top plate 943 is offset from the first top plate 923 (as shown in Z direction in sections 4, 7, and 11). That is, along the height direction of the vehicle (i.e.,...) Figure 1 , 3(As shown in the Z direction of 4, 7, 11), the second top plate 943 and the first top plate 923 have different heights. The second connecting plate 95 connects the first top plate 923 and the second top plate 943. The connection method between the second connecting plate 95 and the first top plate 923 can be, but is not limited to, welding, bolting, etc. The connection method between the second connecting plate 95 and the second top plate 943 can be, but is not limited to, welding, bolting, etc. The first top plate 923, the second top plate 943, and the second connecting plate 95 together define an expansion space 97, which can be part of the crew compartment space. As some embodiments of this application, the second connecting plate 95, the first top plate 923, and the second top plate 943 are integrally formed.

[0223] This arrangement allows for a reasonable structural design of the side crossbeam 9, improves the space utilization of the side crossbeam 9, and increases the space of the vehicle's passenger compartment, thereby enhancing the driving and riding experience.

[0224] As some embodiments of this application, such as Figure 11 , Figure 12 and Figure 14 As shown, the side crossbeam body 91 also includes: a first flange 929, which is connected to the middle crossbeam body 81;

[0225] And / or, the side beam body 91 further includes: a second flange 931, at least a portion of which is located on the side of the corresponding boss 82 away from the middle beam body 81 and connected to the corresponding boss 82.

[0226] And / or, the side beam body 91 further includes: a third flange 9711, along the height direction of the vehicle (i.e. Figure 1 , 3 (as shown in Z direction 4, 7, 11), at least a portion of the third flange 9711 is located at the lower end of the middle crossbeam body 81 and is connected to the middle crossbeam body 81.

[0227] Specifically, such as Figure 12 As shown, the side crossbeam body 91 also includes: a first flange 929, along the width direction of the vehicle (i.e., Figure 1 , 3 (As shown in Y direction in 5, 6, 11), the second mounting component 947 is located between the first flange 929 and the first cavity 921. The first flange 929 is connected to the middle crossbeam body 81. Specifically, the first flange 929 has a first mounting hole 930, and the middle crossbeam body 81 has a first mating hole corresponding to the first mounting hole 930. Bolts, rivets, and other components can pass through the first mounting hole 930 and the first mating hole to connect the first flange 929 to the middle crossbeam 81. This ensures a reliable connection between the side crossbeam body 91 and the middle crossbeam body 81, which helps to improve the connection strength between the side crossbeam body 91 and the middle crossbeam body 81.

[0228] As some embodiments of this application, such as Figure 2 , Figure 12 As shown, the middle crossbeam body 81 has a plate 8141 inside, the plate 8141 is riveted to the middle crossbeam body 81, and a nut is pre-embedded on the plate 8141. The first flange 929 forms a first assembly hole 930. The middle crossbeam body 81 has a first mating hole corresponding to the first assembly hole 930. Bolts can pass through the first assembly hole 930 and the first mating hole and connect with the pre-embedded nut to realize the bolt connection of the aluminum material.

[0229] As some embodiments of this application, components such as bolts and rivets can pass through the second mounting plate 52, the first flange 929, and the middle crossbeam body 81 to connect the second mounting plate 52 to the middle crossbeam body 81. As some embodiments of this application, components such as bolts and rivets can pass through the second mounting plate 52, the first flange 929, and the boss 82 to connect the second mounting plate 52 to the boss 82.

[0230] like Figure 14 As shown, the side crossbeam body 91 further includes a second flange 931. At least a portion of the second flange 931 is located on the side of the corresponding boss 82 away from the middle crossbeam body 81 and is connected to the corresponding boss 82. That is, a portion of the second flange 931 is located on the side of the corresponding boss 82 away from the middle crossbeam body 81, or the entire second flange 931 is located on the side of the corresponding boss 82 away from the middle crossbeam body 81. The second flange 931 is connected to the corresponding boss 82. As some embodiments of this application, along the width direction of the vehicle (i.e., Figure 1 , 3 (As shown in the Y direction of 5, 6, 11), the second mounting member 947 is located between the second flange 931 and the first cavity 921. The second flange 931 has a second mounting hole 932, and the corresponding boss 82 has a second mating hole corresponding to the second mounting hole 932. Bolts, rivets, and other components can pass through the second mounting hole 932 and the second mating hole to connect the second flange 931 with the corresponding boss 82. This arrangement can improve the stability of the connection between the side crossbeam 9 and the middle crossbeam 8, which is beneficial to improving the stability of the front lower crossbeam assembly 98.

[0231] like Figure 11 As shown, the side crossbeam body 91 also includes: a third flange 9711, along the height direction of the vehicle (i.e. Figure 1 , 3(As shown in Z direction 4, 7, 11), at least a portion of the third flange 9711 is located at the lower end of the middle crossbeam body 81 and connected to the middle crossbeam body 81. In some embodiments of this application, the third flange 9711 is integrally formed with the fourth sub-base plate 946. The third flange 9711 has a third mounting hole, and the middle crossbeam body 81 has a third mating hole corresponding to the third mounting hole. Bolts, rivets, and other components can pass through the third mounting hole and the third mating hole to connect the third flange 9711 to the middle crossbeam body 81. This arrangement improves the stability of the connection between the side crossbeam 9 and the middle crossbeam 8, which is beneficial for improving the stability of the front lower crossbeam assembly 98.

[0232] In some embodiments of this utility model, such as Figure 11 As shown, the second connecting bracket 971 includes a first sub-part 9712 and a second sub-part 9713. The first sub-part 9712 and the second sub-part 9713 are connected and have an included angle. The first sub-part 9712 is connected to the first connecting plate 96 and the first sub-top plate 8121. The second sub-part 9713 overlaps with the second top plate 943 and the second sub-top plate 8122.

[0233] Among them, along the length direction of the vehicle (i.e. Figure 1 , 4 (As shown in X direction in 5, 6, 11), the first sub-part 9712 and the second sub-part 9713 are arranged and connected. As some embodiments of this application, the first sub-part 9712 and the second sub-part 9713 can be fixedly connected. For example, the connection method of the first sub-part 9712 and the second sub-part 9713 can be, but is not limited to, welding connection, riveting, etc., or the first sub-part 9712 and the second sub-part 9713 can be integrally formed.

[0234] The first sub-part 9712 and the second sub-part 9713 have an included angle. As an embodiment of this application, the first sub-part 9712 and the second sub-part 9713 can form an L-shaped structure. The included angle between the first sub-part 9712 and the second sub-part 9713 can be, but is not limited to, 60 degrees, 90 degrees, 120 degrees, etc. As an embodiment of this application, the included angle between the first sub-part 9712 and the second sub-part 9713 is the same as the included angle between the first sub-top plate 8121 and the second sub-top plate 8122.

[0235] The first sub-part 9712 is connected to the first connecting plate 96 and the first sub-top plate 8121. As an embodiment of this application, the first sub-part 9712 is located above the first connecting plate 96 and the first sub-top plate 8121. The connection method between the first sub-part 9712 and the first connecting plate 96 and the first sub-top plate 8121 can be, but is not limited to, welding connection, bolt connection, etc.

[0236] The second sub-part 9713 overlaps with both the second top plate 943 and the second sub-top plate 8122. For example, the second sub-part 9713 can contact but not connect with both the second top plate 943 and the second sub-top plate 8122. This is one embodiment of the present application. Figure 11 As shown, the second sub-part 9713 is located above the second top plate 943 and the second sub-top plate 8122. The second sub-part 9713 is in contact with but not connected to the second top plate 943 and the second sub-top plate 8122, or the second sub-part 9713 can be in contact with and connected to the second top plate 943 and the second sub-top plate 8122. As an embodiment of this application, the connection method between the second sub-part 9713 and the second top plate 943 and the second sub-top plate 8122 can be, but is not limited to, bolt connection.

[0237] This configuration makes the structure of the second connecting bracket 971 reasonable, improves the structural strength of the second connecting bracket 971, and further improves the connection stability between the side beam 9 and the middle beam 8, which is beneficial to improving the overall modal performance of the front lower beam assembly 98.

[0238] In some embodiments of this utility model, such as Figure 11 As shown, the front lower crossbeam assembly 98 also includes: a third connecting bracket 973, the number of which is the same as the number of bosses 82 and they correspond one-to-one, along the length direction of the vehicle (i.e., Figure 1 , 4 (in the X direction shown in 5, 6, 11), the third connecting bracket 973 is located at the rear end of the corresponding boss 82 and is connected to the corresponding boss 82 and the side beam 9. The third connecting bracket 973 includes: a third sub-part 9731 and a fourth sub-part. The third sub-part 9731 is connected to the fourth sub-part and has an included angle. The third sub-part 9731 is connected to the corresponding boss 82 and the side beam 9. The fourth sub-part is connected to the middle beam body 81 and the side beam 9.

[0239] And / or, the front lower crossbeam assembly 98 further includes: a fourth connecting bracket 974, the fourth connecting bracket 974 being the same number as the side crossbeams 9 and corresponding one-to-one, the fourth connecting bracket 974 including a fourth mounting plate 9741 and a fifth mounting plate 9742, the fourth mounting plate 9741 and the fifth mounting plate 9742 being connected and having an included angle, the fourth mounting plate 9741 being connected to the corresponding side crossbeam 9, and the fifth mounting plate 9742 being connected to the vehicle's tower pack 6.

[0240] Among them, the number of third connecting brackets 973 and bosses 82 are the same and correspond one-to-one. That is to say, there are two third connecting brackets 973, along the length of the vehicle (i.e., Figure 1 , 4(As shown in the X direction of 5, 6, 11), the third connecting bracket 973 is located at the rear end of the corresponding boss 82, and the third connecting bracket 973 is connected to both the corresponding boss 82 and the side beam 9. As some embodiments of this application, the connection method between the third connecting bracket 973 and the corresponding boss 82 can be, but is not limited to, bolt connection, riveting, etc. As some embodiments of this application, the connection method between the third connecting bracket 973 and the side beam 9 can be, but is not limited to, bolt connection, riveting, etc.

[0241] This configuration enables a stable connection between the side crossbeam 9 and the middle crossbeam 8, which is beneficial to improving the overall modal performance of the front lower crossbeam assembly 98.

[0242] Along the length of the vehicle (i.e.) Figure 1 , 4 (As shown in X direction in 5, 6, 11), the third sub-part 9731 and the fourth sub-part are arranged and connected. As some embodiments of this application, the third sub-part 9731 and the fourth sub-part can be fixedly connected. For example, the connection method between the third sub-part 9731 and the fourth sub-part can be, but is not limited to, welding connection, riveting, etc., or the third sub-part 9731 and the fourth sub-part can be integrally formed.

[0243] The third sub-part 9731 and the fourth sub-part have an included angle. As one embodiment of this application, the third sub-part 9731 and the fourth sub-part can form an L-shaped structure. The included angle between the third sub-part 9731 and the fourth sub-part can be, but is not limited to, 60 degrees, 90 degrees, 120 degrees, etc. As some embodiments of this application, the included angle between the third sub-part 9731 and the fourth sub-part is 90 degrees.

[0244] The third sub-part 9731 is connected to the corresponding boss 82 and the side beam 9. As an embodiment of this application, the connection method between the third sub-part 9731 and the corresponding boss 82 and the side beam 9 can be, but is not limited to, welding connection, bolt connection, etc.

[0245] The fourth sub-part is connected to both the middle crossbeam body 81 and the side crossbeam 9. As an embodiment of this application, the connection method between the fourth sub-part and the middle crossbeam body 81 and the side crossbeam 9 can be, but is not limited to, welding connection, bolt connection, etc.

[0246] This arrangement makes the structure of the third connecting bracket 973 more reasonable, improves its structural strength, and further enhances the connection stability between the side beam 9 and the middle beam 8. In some embodiments of this application, both the third sub-part 9731 and the fourth sub-part have flanges at their edges, which further improves the structural strength of the third connecting bracket 973.

[0247] Among them, the number of fourth connecting brackets 974 is the same as that of the side crossbeams 9 and they correspond one-to-one. That is to say, there are two fourth connecting brackets 974. The fourth connecting bracket 974 includes a fourth mounting plate 9741 and a fifth mounting plate 9742. The fourth mounting plate 9741 and the fifth mounting plate 9742 are connected. As some embodiments of this application, the connection method of the fourth mounting plate 9741 and the fifth mounting plate 9742 can be, but is not limited to, welding connection, riveting, etc. As some embodiments of this application, the fourth mounting plate 9741 and the fifth mounting plate 9742 are integrally formed.

[0248] The fourth mounting plate 9741 and the fifth mounting plate 9742 have an included angle. The included angle between the fourth mounting plate 9741 and the fifth mounting plate 9742 can be, but is not limited to, 45 degrees, 60 degrees, 90 degrees, etc. As an embodiment of this application, the included angle between the fourth mounting plate 9741 and the fifth mounting plate 9742 is 90 degrees. The fourth mounting plate 9741 is connected to the corresponding side crossbeam 9, and the fifth mounting plate 9742 can be connected to the vehicle's tower pack 6.

[0249] This configuration enables a stable connection between the side crossbeam 9 and the tower pack 6, which helps improve the stability of the connection between the front lower crossbeam assembly 98 and the tower pack 6, and thus improves the stability of the vehicle.

[0250] In some embodiments of this utility model, the first connecting bracket 5 further includes: at least one first reinforcing rib, the first reinforcing rib being connected between the first mounting plate 51 and the second mounting plate 52, and at least one second reinforcing rib being provided within the boss 82, along the width direction of the vehicle (i.e. Figure 1 , 3 (as shown in Y direction, 5, 6, 11), at least one second reinforcing rib corresponds to the first reinforcing rib.

[0251] The first connecting bracket 5 further includes at least one first reinforcing rib. As one embodiment of this application, the first connecting bracket 5 may further include one first reinforcing rib, or the first connecting bracket 5 may further include multiple first reinforcing ribs. The first reinforcing rib is connected between the first mounting plate 51 and the second mounting plate 52. As one embodiment of this application, one end of the first reinforcing rib is connected to the first mounting plate 51, and the other end of the first reinforcing rib is connected to the second mounting plate 52.

[0252] The boss 82 is provided with at least one second reinforcing rib. As one embodiment of this application, the boss 82 may have one second reinforcing rib, or multiple second reinforcing ribs. Along the width direction of the vehicle (i.e....) Figure 1 , 3(Y direction shown in 5, 6, 11), at least one second reinforcing rib corresponds to the first reinforcing rib. As an embodiment of this application, a second reinforcing rib is provided in the boss 82, and the second reinforcing rib corresponds to the first reinforcing rib. As an embodiment of this application, a plurality of second reinforcing ribs are provided in the boss 82, and each of the plurality of second reinforcing ribs corresponds to a first reinforcing rib.

[0253] It should be noted that the first reinforcing rib is the first sub-reinforcing member 541 described above, and the second reinforcing rib is the first sub-partition plate 861 described above. Along the width direction of the vehicle (i.e....) Figure 1 , 3 (as shown in Y direction, 5, 6, 11), at least one second reinforcing rib corresponds to the first reinforcing rib, that is, at least one first sub-reinforcing member 541 is correspondingly set with the first sub-partition plate 861.

[0254] This design increases the bending and compressive strength of the front lower crossbeam assembly 98, making it more stable and reliable under larger loads and more conducive to transmitting force to the A-pillar 99.

[0255] According to the present invention, the vehicle body assembly of the vehicle in the above embodiment can withstand the frontal collision force when a frontal collision occurs. Furthermore, since the front lower crossbeam assembly 98 is located behind the tower pack 6 and both tower packs 6 are connected to the front lower crossbeam assembly 98, after the tower pack 6 absorbs and bears part of the X-direction collision force, the front lower crossbeam assembly 98 can bear the force and transmit it along the Y direction to the A-pillar 99. Thus, the tower pack 6 and the A-pillar 99 can bear the frontal collision force, effectively absorb and decompose the energy generated by the collision, reduce the risk of personnel injury caused by the intrusion of front engine compartment components into the passenger compartment, and improve the safety of the vehicle.

[0256] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0257] In the description of this utility model, "first feature" and "second feature" may include one or more of the features.

[0258] In the description of this utility model, "multiple" means two or more.

[0259] In the description of this utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0260] In the description of this utility model, the terms "above", "over" and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0261] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0262] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A vehicle body assembly, characterized in that, include: Two tower packs, the two tower packs being spaced apart along the width direction of the vehicle; The lower front crossbeam assembly is located behind the towers along the length of the vehicle, and both towers are connected to the lower front crossbeam assembly. Two A-pillars, with the lower front beam assembly connected between the two A-pillars.

2. The vehicle body assembly according to claim 1, characterized in that, The tower pack has multiple first mounting holes, and the front lower crossbeam assembly includes multiple first mounting parts, the number of which is the same as the number of the first mounting holes and they are assembled in a one-to-one correspondence.

3. The vehicle body assembly according to claim 2, characterized in that, The front lower crossbeam assembly includes a central crossbeam and side crossbeams. The central crossbeam includes a central crossbeam body and two bosses. Along the height direction of the vehicle, the bosses are arranged with the central crossbeam body. Along the width direction of the vehicle, the two bosses are respectively located at both ends of the central crossbeam body. Along the width direction of the vehicle, both ends of the central crossbeam body are connected to the side crossbeams, and the two bosses are respectively connected to the two side crossbeams. The two side crossbeams are respectively connected to the two A-pillars.

4. The vehicle body assembly according to claim 3, characterized in that, The front lower crossbeam assembly further includes: a first connecting bracket, wherein the first connecting bracket, the side crossbeam, the boss, and the tower bag are of the same number and correspond one-to-one; The first connecting bracket includes: a first mounting plate, a second mounting plate, and a third mounting plate. The first mounting plate is connected to the second mounting plate and has an included angle. The first mounting plate is located on the side of the corresponding tower package facing the other tower package and is connected to the corresponding tower package. The second mounting plate is connected to the middle crossbeam body and the corresponding boss. The third mounting plate is connected to the first mounting plate and has an included angle. The third mounting plate is connected to the corresponding side crossbeam and is located at the lower end of the corresponding tower package and is connected to the corresponding tower package.

5. The vehicle body assembly according to claim 4, characterized in that, The side beam includes: a side beam body, the side beam body includes a first sub-body and a second sub-body, the first sub-body defines a first cavity, the second sub-body defines a second cavity, and the first sub-body and the second sub-body are arranged and connected along the length direction of the vehicle. The first sub-body includes: a first base plate and a first top plate. The first base plate includes: a first sub-base plate and a second sub-base plate. The distance between the first sub-base plate and the first top plate is greater than the distance between the second sub-base plate and the first top plate. The second sub-body includes: a second bottom plate and a second top plate. The second bottom plate includes: a third sub-bottom plate and a fourth sub-bottom plate. The distance between the third sub-bottom plate and the second top plate is greater than the distance between the fourth sub-bottom plate and the second top plate. The third sub-bottom plate and the second sub-bottom plate are directly opposite each other and connected along the length direction of the vehicle. The crossbeam body includes a crossbeam top plate, which includes a first sub-top plate and a second sub-top plate. Along the length direction of the vehicle, the first sub-top plate and the second sub-top plate are arranged and connected. From the end of the first sub-top plate near the second sub-top plate to the end away from the second sub-top plate, the distance between the first sub-top plate and the boss gradually increases along the height direction of the vehicle.

6. The vehicle body assembly according to claim 5, characterized in that, The front lower crossbeam assembly further includes a second connecting bracket, and the side crossbeam further includes a first connecting plate. Along the height direction of the vehicle, the second roof plate is offset from the first roof plate, and the first connecting plate is connected between the first roof plate and the second roof plate. Along the length direction of the vehicle, the distance between the first connecting plate and the second bottom plate gradually changes. The first connecting plate corresponds to the first sub-roof plate, and the second connecting bracket is connected to both the first connecting plate and the first sub-roof plate.

7. The vehicle body assembly according to claim 6, characterized in that, The second connecting bracket includes a first sub-part and a second sub-part. The first sub-part is connected to the second sub-part and has an included angle. The first sub-part is connected to both the first connecting plate and the first sub-top plate. The second sub-part overlaps with both the second top plate and the second sub-top plate.

8. The vehicle body assembly according to claim 3, characterized in that, The front lower crossbeam assembly further includes: a third connecting bracket, the third connecting bracket having the same number of and corresponding to the bosses, and along the length direction of the vehicle, the third connecting bracket is located at the rear end of the corresponding boss and is connected to both the corresponding boss and the side crossbeam. The third connecting bracket includes: a third sub-part and a fourth sub-part, the third sub-part and the fourth sub-part being connected and having an included angle, the third sub-part being connected to both the corresponding boss and the side crossbeam, and the fourth sub-part being connected to both the middle crossbeam body and the side crossbeam. And / or, the front lower crossbeam assembly further includes: a fourth connecting bracket, the number of which is the same as and corresponds one-to-one with the side crossbeams, the fourth connecting bracket including a fourth mounting plate and a fifth mounting plate, the fourth mounting plate being connected to the fifth mounting plate and having an included angle, the fourth mounting plate being connected to the corresponding side crossbeam, and the fifth mounting plate being connected to the vehicle's tower pack.

9. The vehicle body assembly according to claim 4, characterized in that, The first connecting bracket further includes: at least one first reinforcing rib, the first reinforcing rib being connected between the first mounting plate and the second mounting plate, and at least one second reinforcing rib being provided in the boss, with at least one second reinforcing rib corresponding to the first reinforcing rib along the width direction of the vehicle.

10. A vehicle, characterized in that, Includes the vehicle body assembly according to any one of claims 1-9.

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