Frame assembly and vehicle

Abstract

The invention relates to the technical field of vehicle chassis, and provides a vehicle frame assembly and a vehicle, the vehicle frame assembly comprises a vehicle frame main body, the vehicle frame main body comprises two longitudinal beams arranged at intervals in the width direction and a plurality of cross beams connected between the two longitudinal beams; the axle is connected with the frame main body; each group of long longitudinal pull rod mounting bracket is arranged on the longitudinal beam, and a cross beam is connected between the two groups of long longitudinal pull rod mounting brackets; two groups of short longitudinal pull rod mounting brackets, wherein each group of short longitudinal pull rod mounting bracket is arranged on the longitudinal beam; the transverse pull rod bracket is arranged on one longitudinal beam; the connecting rod assembly comprises a transverse pull rod, two long longitudinal pull rods and two short longitudinal pull rods, each long longitudinal pull rod is connected to the axle and one set of long longitudinal pull rod installation supports, each short longitudinal pull rod is connected to the axle and one set of short longitudinal pull rod installation supports, and the transverse pull rod is transversely arranged and connected to the transverse pull rod support and the axle. The trafficability, the escape performance and the cross-country performance of the whole vehicle are improved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle chassis, and in particular to a frame assembly and a vehicle. Background Art

[0002] At present, in a vehicle, when the vehicle's axle (such as the front axle) is fixed on the frame, the axle will not move relative to the frame. For example, the front axle of a rigid bridge vehicle jumps up and down with the overall suspension, resulting in insufficient clearance between the front axle and the engine. There is a risk of interference, and the layout of the power system in the engine compartment needs to be moved back as a whole to avoid the front axle.

[0003] In the related art, the suspension mechanisms that are usually matched with the vehicle frame are double wishbone suspension structures, McPherson independent suspension structures, etc. Taking double wishbone suspension as an example, when a vehicle adopts double wishbone suspension, sufficient installation space needs to be reserved to meet the assembly requirements of the double wishbone suspension. When the double wishbone suspension is used in the front area of the vehicle assembly, the setting of the double wishbone suspension will further restrict the layout of the engine compartment; when the double wishbone suspension is used in the rear area of the vehicle assembly, the double wishbone suspension will compress the vehicle's trunk or rear space, affecting the user's driving experience. At the same time, the vertical jump stroke of the double wishbone suspension structure is short, which affects the passability of the entire vehicle. Summary of the Invention

[0004] In view of this, the present application aims to propose a frame assembly to form a five-link mechanism connected between the axle and the frame body at the front of the frame assembly, which helps to improve the overall passability and off-road driving performance of the vehicle.

[0005] To achieve the above objectives, the technical solution of this application is implemented as follows:

[0006] A frame assembly comprises: a frame body, the frame body comprising two longitudinal beams arranged at intervals along the width direction and a cross beam connected between the two longitudinal beams; an axle, the axle being connected to the frame body; two groups of long longitudinal tie rod mounting brackets, each group of the long longitudinal tie rod mounting brackets being arranged on the longitudinal beams, and one cross beam being connected between the two groups of the long longitudinal tie rod mounting brackets; two groups of short longitudinal tie rod mounting brackets, each group of the short longitudinal tie rod mounting brackets being arranged on the longitudinal beams; a transverse tie rod bracket, the transverse tie rod bracket being arranged on one of the longitudinal beams; a connecting rod assembly, the connecting rod assembly comprising a transverse tie rod, two long longitudinal tie rods and two short longitudinal tie rods, each of the long longitudinal tie rods being connected to the axle and a group of the long longitudinal tie rod mounting brackets, each of the short longitudinal tie rods being connected to the axle and a group of the short longitudinal tie rod mounting brackets, and the transverse tie rod being arranged transversely and connected to the transverse tie rod bracket and the axle.

[0007] According to some embodiments of the present application, the long longitudinal pull rod mounting bracket includes: a cross-beam connecting bracket, which is connected to the bottom of the longitudinal beam and is used to connect and cooperate with the third cross-beam, and the cross-beam connecting bracket includes a cross-beam connecting inner plate and a cross-beam connecting outer plate arranged to be snapped together along the Y direction; a long longitudinal bracket, which is connected to the cross-beam connecting outer plate and is enclosed with the cross-beam connecting outer plate to form a long longitudinal pull rod mounting cavity, and one end of the long longitudinal pull rod is connected to the long longitudinal bracket and the cross-beam connecting outer plate.

[0008] According to some embodiments of the present application, the short longitudinal pull rod mounting bracket is arranged on the front side of the long longitudinal bracket and the cross beam connecting bracket, and includes: a short longitudinal bracket inner plate, which is respectively connected to the cross beam connecting inner plate and the longitudinal beam; a short longitudinal bracket outer plate, which is respectively connected to the longitudinal beam bracket and the longitudinal beam, and the short longitudinal bracket outer plate and the short longitudinal bracket inner plate are buckled together along the Y direction and enclosed to form the short longitudinal pull rod mounting cavity.

[0009] According to some embodiments of the present application, an inner connection point of the long longitudinal rod is formed on the outer side of the crossbeam connecting bracket, and an outer connection point of the long longitudinal rod is formed on the long longitudinal bracket; in the projection in the Y direction, the projection of the inner connection point of the long longitudinal rod and the projection of the outer connection point of the long longitudinal rod fall within the projection range of the third crossbeam.

[0010] According to some embodiments of the present application, the crossbeam connecting bracket is provided with a third crossbeam connecting portion, and the third crossbeam connecting portion includes a first mounting hole and a second mounting hole, and the first mounting hole and the second mounting hole are both arranged to pass through the crossbeam connecting bracket along the X direction; the frame assembly also includes multiple groups of connecting components, each group of the connecting components can be cooperated with the first mounting hole or the second mounting hole, and fixedly connect the third crossbeam to the crossbeam connecting bracket, and the first mounting hole is arranged below the second mounting hole, and in the Y direction, the first mounting hole is located on the inner side of the second mounting hole.

[0011] According to some embodiments of the present application, in the vertical direction, the external connection point of the long longitudinal pull rod is located at the middle position of the long longitudinal bracket, and the long longitudinal bracket is connected and coordinated with the cross beam connecting bracket and the longitudinal beam; or, in the vertical direction, the external connection point of the long longitudinal pull rod is located at the lower position of the long longitudinal bracket, and the long longitudinal bracket is connected to the cross beam connecting bracket.

[0012] According to some embodiments of the present application, the long longitudinal pull rod mounting bracket includes: a cross-beam connecting bracket, which is connected to the bottom of the longitudinal beam and forms a cavity structure, and part of the third cross-beam can extend into the cavity structure and be connected to the cross-beam connecting bracket; a reinforcing assembly, which is arranged in the cross-beam mounting cavity, and part of the reinforcing assembly is passed through the cross-beam connecting bracket and forms an inner connection point of the long pull rod; a long longitudinal bracket, which is connected to the outer side of the cross-beam connecting bracket and is connected and cooperated with the longitudinal beam, and the long longitudinal bracket is formed with an outer connection point of the long longitudinal pull rod arranged opposite to the inner connection point of the long longitudinal pull rod in the Y direction.

[0013] According to some embodiments of the present application, the reinforcement assembly includes: a connection point reinforcement plate, the connection point reinforcement plate being arranged in the cavity structure and connected to the cross-beam connection bracket; a support tube, the support tube being installed on the connection point reinforcement plate and the cross-beam connection bracket, a portion of the support tube passing through the cross-beam connection bracket from the cavity structure to the outside and forming a long longitudinal tie rod inner connection point on the outside of the cross-beam connection bracket;

[0014] According to some embodiments of the present application, the transverse tie rod bracket includes: a transverse tie rod bracket front plate and a transverse tie rod bracket rear plate, which are buckled together in the front-to-back direction and are respectively connected to the longitudinal beam; a transverse tie rod bracket reinforcement plate, which is buckled together with the transverse tie rod bracket front plate and the transverse tie rod bracket rear plate and is connected to the longitudinal beam.

[0015] According to some embodiments of the present application, the transverse tie rod bracket reinforcement plate includes: a transverse tie rod bracket main reinforcement plate section, which is arranged on the outer side of the longitudinal beam in the Y direction and is connected to the longitudinal beam; a transverse tie rod bracket front reinforcement plate section, which is connected to the front side of the transverse tie rod bracket main reinforcement plate section and is connected to the transverse tie rod bracket front plate; a transverse tie rod bracket rear reinforcement plate section, which is arranged opposite to the transverse tie rod bracket front reinforcement plate section in the X direction, and is connected to the rear side of the transverse tie rod bracket main reinforcement plate section, and is connected to the transverse tie rod bracket rear plate.

[0016] According to some embodiments of the present application, the transverse tie rod bracket is formed with a accommodating cavity located below the longitudinal beam, and the transverse tie rod bracket is formed with a transverse tie rod mounting portion, and the transverse tie rod mounting portion is used to connect and cooperate with the transverse rod; the transverse tie rod bracket also includes a reinforcement box, the upper end of the reinforcement box is connected to the bottom of the longitudinal beam, and the reinforcement box is circumferentially enclosed with the transverse tie rod bracket to define and connect with the inner circumferential wall of the accommodating cavity, and the reinforcement box is located above the transverse tie rod mounting portion.

[0017] According to some embodiments of the present application, the reinforcement box is provided with weight-reducing holes on the wall surface in the circumferential direction; the transverse tie rod bracket is provided with a plurality of transverse tie rod bracket connection ports, and the transverse tie rod bracket connection ports are arranged through the wall surface of the transverse tie rod bracket and are arranged opposite to the circumferential wall of the reinforcement box, and at least one of the transverse tie rod bracket connection ports is arranged opposite to the weight-reducing holes.

[0018] According to some embodiments of the present application, the frame assembly also includes a first crossbeam assembly, which includes: a first crossbeam body, which is arranged below the longitudinal beam and includes: a first crossbeam connecting beam section and a first crossbeam main beam section, the first crossbeam main beam section is connected between two sections of the first crossbeam connecting beam sections, and is protruded forward relative to the first crossbeam connecting section to form a stabilizer bar avoidance area on the rear side of the first crossbeam main beam section; two groups of first crossbeam mounting brackets, which are respectively connected to the two sections of the first crossbeam connecting beam sections at both ends of the first crossbeam body, and are used to connect and cooperate with the longitudinal beam, and the first crossbeam mounting brackets can be used to install a stabilizer bar.

[0019] According to some embodiments of the present application, the axle includes: a front axle, which is arranged in the front section area of the frame body and is connected to the frame body through a set of the connecting rod assemblies; and / or a rear axle, which is arranged in the rear section area of the frame body and is connected to the frame body through a set of the connecting rod assemblies.

[0020] Compared with the prior art, the frame assembly described in this application has the following advantages:

[0021] (1) A five-link suspension mechanism is formed between the axle and the frame through the connecting rod assembly to improve the vehicle's passability, escape performance, and off-road performance;

[0022] (2) by providing a second cross member in the main frame, so as to improve the lateral rigidity at the tie rod bracket through the second cross member;

[0023] (3) The third crossbeam is connected and matched with the long longitudinal tie rod mounting bracket to improve the lateral stiffness of the long longitudinal tie rod family, and the crossbeam connecting bracket can cooperate with the long longitudinal bracket to help improve the overall strength of the long longitudinal tie rod mounting bracket;

[0024] (4) The short longitudinal tie rod mounting bracket is connected and matched with the long longitudinal tie rod mounting bracket to form an integral body, which helps to further improve the connection reliability of the connecting rod assembly on the side of the frame body, and can be connected and fixed by welding, reducing the welding process required;

[0025] (5) The tie rod bracket front plate and the tie rod bracket rear plate in the tie rod bracket are buckled together in the front-to-back direction and then connected to the tie rod bracket reinforcement plate by a left-to-right buckling cooperation method, which can improve the lateral stiffness of the tie rod bracket;

[0026] Another object of the present application is to provide a vehicle.

[0027] To achieve the above objectives, the technical solution of this application is implemented as follows:

[0028] A vehicle comprises the above-mentioned frame assembly.

[0029] The advantages of the vehicle and the frame assembly described above over the prior art are the same and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of this application. The exemplary embodiments and descriptions of this application are intended to explain this application and do not constitute an improper limitation on this application. In the accompanying drawings:

[0031] Figure 1 This is a schematic diagram of the structure of the frame assembly according to one embodiment of the present application. Figure 1 ;

[0032] Figure 2 This is a schematic diagram of the structure of the frame assembly according to one embodiment of the present application. Figure 2 ;

[0033] Figure 3 This is a schematic structural diagram of the front section of the vehicle frame assembly according to one embodiment of the present application;

[0034] Figure 4 Schematic diagram of the cooperation between the long longitudinal tie rod mounting bracket and the third crossbeam according to an embodiment of the present application Figure 1 ;

[0035] Figure 5 This is a schematic diagram of the cooperation between the long longitudinal tie rod mounting bracket and the third crossbeam according to an embodiment of the present application. Figure 2 ;

[0036] Figure 6 This is a schematic structural diagram of a long longitudinal pull rod mounting bracket according to an embodiment of the present application;

[0037] Figure 7 The explosion of the long longitudinal tie rod mounting bracket described in one embodiment of the present application Figure 1 ;

[0038] Figure 8 The explosion of the long longitudinal tie rod mounting bracket according to one embodiment of the present application Figure 2 ;

[0039] Figure 9 This is a schematic diagram of the structure of the frame assembly according to one embodiment of the present application. Figure 3 ;

[0040] Figure 10 This is a schematic diagram of the cooperation between the long longitudinal tie rod mounting bracket and the third crossbeam according to an embodiment of the present application. Figure 3 ;

[0041] Figure 11 This is a schematic diagram of the structure of the tie rod bracket according to one embodiment of the present application. Figure 1 ;

[0042] Figure 12 The explosion of the tie rod bracket according to one embodiment of the present application Figure 1 ;

[0043] Figure 13 The explosion of the tie rod bracket according to one embodiment of the present application Figure 2 ;

[0044] Figure 14 This is a schematic diagram of the structure of the tie rod bracket according to one embodiment of the present application. Figure 2 ;

[0045] Figure 15 The explosion of the tie rod bracket according to one embodiment of the present application Figure 3 ;

[0046] Figure 16 This is a schematic structural diagram of a reinforcement box according to an embodiment of the present application;

[0047] Figure 17 This is an exploded view of a reinforcement box according to an embodiment of the present application;

[0048] Figure 18 This is a schematic diagram of the cooperation between the first crossbeam assembly, the longitudinal beam and the stabilizer bar according to one embodiment of the present application;

[0049] Figure 19 This is a top view of the cooperation between the first crossbeam assembly, the longitudinal beam and the stabilizer bar according to one embodiment of the present application;

[0050] Figure 20 Schematic diagram of the cooperation between the first crossbeam assembly and the stabilizer bar according to one embodiment of the present application Figure 1 ;

[0051] Figure 21 Schematic diagram of the cooperation between the first crossbeam assembly and the stabilizer bar according to one embodiment of the present application Figure 2 ;

[0052] Figure 22 This is a schematic structural diagram of the first crossbeam described in one embodiment of the present application.

[0053] Description of reference numerals:

[0054] Frame assembly 100; frame body 10; axle 20; stabilizer bar 30;

[0055] Longitudinal beam 1; longitudinal beam front section 11; longitudinal beam middle section 12; longitudinal beam rear section 13;

[0056] First crossbeam assembly 21; first crossbeam body 211; first crossbeam connecting beam section 2111; first crossbeam main beam section 2112; stabilizer bar avoidance area 2113; first rod member 2114; second rod member 2115;

[0057] First crossbeam mounting bracket 212; first crossbeam front mounting plate 2121; front mounting plate connecting hole 21211; first crossbeam rear mounting plate 2122; rear mounting plate connecting hole 21221; stabilizer bar mounting boss 21222; avoidance area 21223; longitudinal beam mounting slot 2123; first crossbeam mounting slot 2124;

[0058] Front trailer hook 213; front trailer hook mounting plate 214; fourth opening 2141;

[0059] The second cross beam 22; the third cross beam 23; the third cross beam connecting beam section 231; the third cross beam main beam section 232; the fourth cross beam 24;

[0060] Long longitudinal tie rod mounting bracket 3; long longitudinal tie rod mounting cavity 301; crossbeam connecting bracket 31; crossbeam connecting inner plate 311; crossbeam connecting inner plate front plate section 3111; crossbeam connecting inner plate rear plate section 3112; crossbeam connecting inner plate main plate section 3113; crossbeam connecting outer plate 312; connecting outer plate extension section 3121; crossbeam connecting outer plate main plate section 3122; second support tube mounting hole 31221; crossbeam connecting outer plate front plate section 3123; crossbeam connecting outer plate rear plate section 3124; crossbeam connecting outer plate lower plate section 3125; long longitudinal tie rod inner connecting Contact 313; first mounting hole 3141; second mounting hole 3142; long longitudinal bracket 32; second opening 321; long longitudinal tie rod outer connection point 322; long longitudinal bracket main plate section 323; long longitudinal bracket front plate section 324; long longitudinal bracket rear plate section 325; long longitudinal tie rod avoidance opening 326; connecting bolt 331; connecting nut 332; connection point reinforcement plate 34; reinforcement plate main plate section 341; first support tube mounting hole 3411; reinforcement plate front plate section 342; reinforcement plate rear plate section 343; reinforcement plate lower plate section 344; support tube 35;

[0061] Short longitudinal tie rod mounting bracket 4; short longitudinal tie rod mounting cavity 401; short longitudinal bracket inner plate 41; short longitudinal bracket inner plate connecting plate 411; first short longitudinal bracket inner plate lap plate section 412; second short longitudinal bracket inner plate lap plate section 413; short longitudinal bracket outer plate 42; short longitudinal bracket outer plate flange 421; first short longitudinal bracket outer plate lap plate section 422; second short longitudinal bracket outer plate lap plate section 423;

[0062] Tie rod bracket 5; accommodating cavity 501; tie rod mounting portion 502; tie rod bracket connecting port 503;

[0063] Tie rod bracket front plate 51; tie rod bracket front plate inner plate section 511; tie rod bracket front plate mounting plate section 512; bracket front plate connecting plate section 513; tie rod bracket rear plate 52; tie rod bracket rear plate inner plate section 521; tie rod bracket rear plate mounting plate section 522; bracket rear plate connecting plate section 523; tie rod bracket reinforcement plate 53; tie rod bracket main reinforcement plate section 531; avoidance hole 5311; tie rod bracket front reinforcement plate section 532; tie rod bracket rear reinforcement plate section 533; first reinforcement plate connecting flange 5341; second reinforcement plate connecting flange 5342; third opening 55; mounting hole 56; reinforcement box 57; first reinforcement plate 571; first overlapping flange 5711; second reinforcement plate 572; second overlapping flange 5721; weight reduction hole 573;

[0064] Connecting rod assembly 6; transverse tie rod 61; long longitudinal tie rod 62; short longitudinal tie rod 63. DETAILED DESCRIPTION

[0065] It should be noted that, unless there is any conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0066] The frame assembly 100 of the embodiment of the present application will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0067] The vehicle frame assembly 100 according to the embodiment of the present application includes: a vehicle frame body 10 , an axle 20 , a connecting rod assembly, two sets of long longitudinal tie rod mounting brackets 3 , two sets of short longitudinal tie rod mounting brackets 4 and a transverse tie rod bracket 5 .

[0068] The main frame 10 includes two longitudinal beams 1 spaced apart along the Y direction and multiple cross beams connected between the two longitudinal beams 1. The cross beams are spaced apart along the X direction between the two longitudinal beams 1 to enhance the lateral rigidity of the main frame 10. The "Y direction" refers to the width of the frame assembly 100 and also its left-right direction; the "X direction" refers to its length and also its front-back direction. In the main frame 10, the inner side in the Y direction refers to the side closer to the central axis of the main frame 10, while the outer side in the Y direction refers to the side farther from the central axis.

[0069] Furthermore, the axle 20 is connected to the frame body 10, for example, the axle 20 can be connected to the longitudinal beam 1 in the frame body 10 through a connecting rod assembly, that is, the road excitation transmitted to the axle 20 through the wheel can be further transmitted to one side of the frame body 10 through the connecting rod assembly.

[0070] Each set of long longitudinal tie rod mounting brackets 3 is set on the longitudinal beam 1, and a cross beam (such as the third cross beam) is connected between the two sets of long longitudinal tie rod mounting brackets 3; two sets of short longitudinal tie rod mounting brackets 4, each set of short longitudinal tie rod mounting brackets 4 is set on the longitudinal beam 1; the cross rod bracket 5 is set on one of the two longitudinal beams 1.

[0071] Combine Figure 1 and Figure 2 As shown, the connecting rod assembly includes a transverse rod, two long longitudinal rods and two short longitudinal rods. Each long longitudinal rod is connected to the axle 20 and a group of long longitudinal rod mounting brackets 3, each short longitudinal rod is connected to the axle 20 and a group of short longitudinal rod mounting brackets 4, and the transverse rods are transversely arranged and connected to the transverse rod brackets 5 and the axle 20, so that a five-link suspension mechanism can be formed between the axle 20 and the frame assembly 100. The five-link suspension mechanism has a long movement stroke and can improve the vehicle's passability and off-road performance.

[0072] It can be understood that the transverse tie rod bracket 5 is a mounting carrier for one end of the transverse tie rod, and the transverse tie rod bracket 5 is used to fit together with one end of the transverse tie rod to connect one end of the transverse tie rod to the frame body 10; the long longitudinal tie rod mounting bracket 3 is a mounting carrier for one end of the transverse tie rod, and the long longitudinal tie rod mounting bracket 3 is used to fit together with one end of the transverse tie rod to connect one end of the transverse tie rod to the frame body 10; the short longitudinal tie rod mounting bracket 4 is a mounting carrier for one end of the transverse tie rod, and the short longitudinal tie rod mounting bracket 4 is used to fit together with one end of the transverse tie rod to connect one end of the transverse tie rod to the frame body 10.

[0073] At present, in a vehicle, when the axle 20 of the vehicle (such as the front axle) is fixed on the frame, the axle 20 will not move relative to the frame. For example, the front axle part of a hard-bridge vehicle jumps up and down with the overall suspension, resulting in insufficient clearance between the front axle and the engine. There is a risk of interference, and the layout of the power system in the engine compartment needs to be moved back as a whole to avoid the front axle.

[0074] In the related art, the suspension mechanisms commonly used with vehicle frames include double wishbone suspension structures, McPherson independent suspension structures, and others. Taking double wishbone suspension as an example, when a vehicle utilizes double wishbone suspension, sufficient installation space must be reserved to meet the assembly requirements of the double wishbone suspension. When the double wishbone suspension is used in the front area of the vehicle assembly, its installation further restricts the layout of the engine compartment; when the double wishbone suspension is used in the rear area of the vehicle assembly, it compresses the vehicle's trunk or rear seat space, affecting the user's driving experience.

[0075] Among them, when the vehicle adopts the front double wishbone independent suspension, due to the short suspension travel of the double wishbone, the vehicle's passability and off-road performance will be poor, and it will not be able to meet the user's various driving needs.

[0076] In the vehicle frame assembly 100 of the embodiment of the present application, a five-rod structure (i.e., the aforementioned transverse tie rod, two long longitudinal tie rods, and two short longitudinal tie rods) is connected to the axle 20. These are connected between the axle 20 and the vehicle frame 10 via a connecting rod assembly. This allows the five-link suspension mechanism formed by the connecting rod assembly to have sufficient travel, thereby increasing the range of motion adjustment of the axle 20 relative to the vehicle frame 10. When the connecting rod assembly is connected between the front axle and the vehicle frame 10, it helps improve the vehicle's maneuverability and off-road performance, meeting driving requirements in various road conditions.

[0077] At the same time, compared with the double wishbone suspension structure, the five-link suspension mechanism composed of connecting rod assemblies requires less installation space. When the five-link suspension mechanism is applied to the front axle, it will not restrict the layout of the engine compartment side; when the five-link suspension mechanism is applied to the rear axle, it will not compress the vehicle's trunk or rear space.

[0078] In some embodiments of the present application, the axle 20 includes a front axle, which is arranged in the front section of the frame body 10, and the front axle is connected to the frame body 10 through a set of connecting rod assemblies, so that a five-link suspension mechanism composed of the connecting rod assemblies is connected between the front axle and the frame body 10, thereby improving the passability and off-road performance of the front side of the entire vehicle.

[0079] In other embodiments of the present application, the axle 20 includes a rear axle, which is arranged in the rear section of the frame body 10, and the rear axle is connected to the frame body 10 through a set of connecting rod assemblies, so that a five-link suspension mechanism composed of the connecting rod assemblies is connected between the rear axle and the frame body 10, thereby improving the passability and off-road performance of the rear side of the entire vehicle.

[0080] It can be understood that the present application can simultaneously connect a set of connecting rod assemblies to the front axle and rear axle of the vehicle respectively, and connect the five-link suspension mechanism composed of the connecting rod assemblies to the frame body 10, thereby increasing the suspension stroke of the entire vehicle, thereby improving the passability and off-road performance of the entire vehicle, thereby meeting the user's various driving and riding needs.

[0081] The crossbeam connecting bracket 31 and the long longitudinal bracket 32 in this application cooperate and together constitute the long longitudinal tie rod mounting bracket 3, which is used to install the long longitudinal tie rod, and the other end of the long longitudinal tie rod is connected to the vehicle axle; the short longitudinal tie rod mounting bracket 4 is used to install the short longitudinal tie rod, and the other end of the short longitudinal tie rod is connected to the vehicle axle.

[0082] The frame assembly 100 may include a longitudinal beam 1 and a long longitudinal tie rod mounting bracket 3, the long longitudinal tie rod mounting bracket 3 includes: a cross beam connecting bracket 31 and a long longitudinal bracket 32, the cross beam connecting bracket 31 is connected to the bottom of the longitudinal beam 1 and is used to connect and cooperate with the third cross beam 23, the cross beam connecting bracket 31 includes a cross beam connecting inner plate 311 and a cross beam connecting outer plate 312 arranged along the Y direction, the long longitudinal bracket 32 is connected to the cross beam connecting outer plate 312, and is enclosed with the cross beam connecting outer plate 312 to form a long longitudinal tie rod mounting cavity 301, one end of the long longitudinal tie rod is connected to the long longitudinal bracket 32 and the cross beam connecting outer plate 312.

[0083] It should be noted that in hard-bridge models, the strength of the long longitudinal tie rod mounting bracket is relatively weak, and the overall frame torsional stiffness is low. During strong off-road driving, there are problems such as cracking of the long longitudinal bracket mounting bracket and severe deformation of the frame, resulting in abnormal noise.

[0084] Based on this, an embodiment of the present application proposes a vehicle frame assembly 100. The vehicle frame assembly 100 may include a longitudinal beam 1 and a long longitudinal tie rod mounting bracket 3. The longitudinal beam 1 may extend in the front-to-rear direction of the vehicle, and the long longitudinal tie rod mounting bracket 3 may be used to mount the long longitudinal tie rod. The long longitudinal tie rod mounting bracket 3 may include a crossbeam connecting bracket 31 and a long longitudinal bracket 32. The crossbeam connecting bracket 31 may be disposed below the longitudinal beam 1 and may be welded to the longitudinal beam 1. The crossbeam connecting bracket 31 may be used to connect and cooperate with the third crossbeam 23. The crossbeam connecting bracket 31 may be bolted to the third crossbeam 23 and may be disposed on the outside of the third crossbeam 23. It should be noted that "the outside of the third crossbeam 23" refers to the side of the third crossbeam 23 in the Y direction (i.e., the left-right direction of the vehicle frame assembly 100) that is away from the central axis of the vehicle frame assembly 100.

[0085] The cross-beam connecting bracket 31 may include a cross-beam connecting inner plate 311 and a cross-beam connecting outer plate 312. The cross-beam connecting inner plate 311 and the cross-beam connecting outer plate 312 may be interlocked and arranged along the Y-direction, which may be parallel to the left-right direction of the vehicle. The cross-beam connecting inner plate 311 and the cross-beam connecting outer plate 312 may be arranged along the Y-direction, and the cross-beam connecting outer plate 312 may be located outside the cross-beam connecting inner plate 311. The cross-beam connecting inner plate 311 and the cross-beam connecting outer plate 312 may be assembled together along the Y-direction to jointly define a first cavity 313. The first cavity 313 may be open toward the longitudinal beam 1. The formation of the first cavity 313 by providing the cross-beam connecting bracket 31 may improve the rigidity of the cross-beam connecting bracket 31. It should be noted that the "outside of the cross-beam connecting inner plate 311" refers to the side of the cross-beam connecting inner plate 311 in the Y-direction that is away from the central axis of the frame assembly 100.

[0086] The long longitudinal bracket 32 can be connected to the crossbeam connecting outer plate 312. The long longitudinal bracket 32 can be welded to the crossbeam connecting outer plate 312. The long longitudinal bracket 32 can be located on the side of the crossbeam connecting outer plate 312 facing away from the crossbeam connecting inner plate 311. The crossbeam connecting outer plate 312 can support the long longitudinal bracket 32. The crossbeam connecting bracket 31 can cooperate with the long longitudinal bracket 32 to form the long longitudinal tie rod mounting bracket 3. At least a portion of the long longitudinal bracket 32 can be separated from the crossbeam connecting outer plate 312. The long longitudinal bracket 32 and the crossbeam connecting outer plate 312 can enclose a long longitudinal tie rod mounting cavity 301. One end of the long longitudinal tie rod can be mounted within the long longitudinal tie rod mounting cavity 301. Part of the long longitudinal tie rod mounting cavity 301 can be open to the front, allowing the long longitudinal tie rod to be arranged in the front-to-back direction. One end of the long longitudinal tie rod can be connected to the long longitudinal bracket 32 and the crossbeam connecting outer plate 312, respectively. The other end of the long longitudinal tie rod can be connected to the vehicle axle. It should be noted that the “front side” in the phrase “part of the long longitudinal tie rod installation cavity 301 can be open to the front side” refers to the side of the long longitudinal tie rod installation cavity 301 close to the front of the vehicle along the front-rear direction of the vehicle.

[0087] By setting one end of the long longitudinal pull rod to be connected to the long longitudinal bracket 32 and the crossbeam connecting outer plate 312 respectively, it is beneficial to enhance the ability of the long longitudinal pull rod mounting bracket 3 to support the long longitudinal pull rod. The force on the long longitudinal pull rod can be evenly transmitted to the long longitudinal bracket 32 and the crossbeam connecting outer plate 312, which can reduce the stress concentration phenomenon on the long longitudinal pull rod mounting bracket 3, which is beneficial to improve the strength and rigidity of the long longitudinal pull rod mounting bracket 3, and help reduce the probability of the long longitudinal pull rod mounting bracket 3 cracking or damage.

[0088] The crossbeam connecting bracket 31 can be connected to the longitudinal beam 1, and the long longitudinal tie rod mounting bracket 3 can be connected to the longitudinal beam 1 via the crossbeam connecting bracket 31. The crossbeam connecting bracket 31 can also be connected and cooperated with the third crossbeam 23. The third crossbeam 23 can be provided with a crossbeam connecting bracket 31 at both ends in the left and right directions of the vehicle. The third crossbeam 23 can be connected between two sets of long longitudinal tie rod mounting brackets 3. The two sets of long longitudinal tie rod mounting brackets 3 can be connected via the third crossbeam 23, and the two sets of long longitudinal tie rod mounting brackets 3 can also be connected to the longitudinal beam 1, which helps optimize the force transmission path of the frame assembly 100, improves the overall torsional stiffness of the frame assembly 100, provides good rigidity for the frame assembly 100 under strong off-road conditions, and helps reduce deformation of the frame assembly 100.

[0089] In the embodiment of the present application, the crossbeam connecting bracket 31 and the long longitudinal bracket 32 together constitute the long longitudinal pull rod mounting bracket 3, which is beneficial to improving the strength and rigidity of the long longitudinal pull rod mounting bracket 3 and reducing the probability of cracking or damage of the long longitudinal pull rod mounting bracket 3.

[0090] In some embodiments of the present application, the long longitudinal bracket 32 is formed with a groove structure open to one side of the cross-beam connecting bracket 31 , and part of the cross-beam connecting outer plate 312 is arranged in the groove structure and is fitted with the inner surface of the long longitudinal bracket 32 .

[0091] The long longitudinal bracket 32 may be formed with a slot structure. When the long longitudinal bracket 32 is assembled with the cross-beam connecting bracket 31, the slot structure may be open toward the side of the long longitudinal bracket 32 facing the cross-beam connecting bracket 31. Part of the structure of the cross-beam connecting outer plate 312 may be disposed within the slot structure. The cross-beam connecting outer plate 312 disposed within the slot structure may be fitted against the inner surface of the long longitudinal bracket 32. The cross-beam connecting outer plate 312 disposed within the slot structure may be welded to the long longitudinal bracket 32, which is beneficial for increasing the contact area between the long longitudinal bracket 32 and the cross-beam connecting outer plate 312, and for enhancing the connection strength between the long longitudinal bracket 32 and the cross-beam connecting outer plate 312, thereby further improving the strength and rigidity of the long longitudinal tie rod mounting bracket 3.

[0092] At least part of the trough structure can be constructed as a long longitudinal pull rod installation cavity 301, and the long longitudinal bracket 32 can be together with the partial cross beam connecting outer plate 312 arranged in the trough structure to form the long longitudinal pull rod installation cavity 301, and the long longitudinal pull rod can be respectively connected to the long longitudinal bracket 32 and the partial cross beam connecting outer plate 312 located in the trough structure by bolts.

[0093] In some embodiments of the present application, the long longitudinal bracket 32 is provided with a second opening 321 , which is provided through the long longitudinal bracket 32 along the thickness direction and is used to fill solder to weld the long longitudinal bracket 32 to the crossbeam connecting outer plate 312 .

[0094] The long longitudinal bracket 32 may be provided with a second opening 321. The second opening 321 may be provided through the long longitudinal bracket 32 in the thickness direction. The second opening 321 may be filled with solder, which may contact and cooperate with the cross-beam connecting outer plate 312, thereby achieving a welded connection between the long longitudinal bracket 32 and the cross-beam connecting outer plate 312 at the second opening 321. The provision of the second opening 321 may further enhance the connection strength between the long longitudinal bracket 32 and the cross-beam connecting outer plate 312, thereby further improving the strength and rigidity of the long longitudinal tie rod mounting bracket 3.

[0095] Part of the structure of the crossbeam connecting outer plate 312 is arranged in the groove structure of the long longitudinal bracket 32, and the long longitudinal bracket 32 and the crossbeam connecting outer plate 312 can be arranged relative to each other along the Y direction. When the long longitudinal bracket 32 and the crossbeam connecting outer plate 312 need to be welded together, if the welding operation is performed from the inside of the groove structure, the welding equipment needs to be extended into the groove structure. The operating space in the groove structure is small, which easily causes interference between the welding equipment and the long longitudinal bracket 32, and thus makes the welding of the long longitudinal bracket 32 and the crossbeam connecting outer plate 312 difficult. Therefore, a second opening 321 is provided so that the welding process can be performed on the side of the long longitudinal bracket 32 away from the crossbeam connecting outer plate 312, which helps to reduce the difficulty of connecting the long longitudinal bracket 32 and the crossbeam connecting outer plate 312 and facilitates operation. The specific setting position of the second opening 321 can be set according to the specific structure of the long longitudinal bracket 32 and the crossbeam connecting outer plate 312 and the connection requirements. The position of the second opening 321 can be set in an area on the long longitudinal bracket 32 that is convenient for operation. As an example, the chamfered corners of the long longitudinal bracket 32 are subjected to greater force, making welding operations inconvenient.

[0096] In some embodiments of the present application, the cross-beam connecting outer panel 312 includes a connecting outer panel extension section 3121 extending forward and upward, the connecting outer panel extension section 3121 is connected to the outer side wall and bottom wall of the longitudinal beam 1, and the upper end of the cross-beam connecting outer panel 312 forms an S-shaped connecting edge line that is in contact with the longitudinal beam 1.

[0097] The crossbeam connecting outer panel 312 may include an outer panel extension 3121. The outer panel extension 3121 may extend forward and upward. The outer panel extension 3121 may be located at the upper end of the crossbeam connecting outer panel 312. The outer panel extension 3121 may increase the contact area between the crossbeam connecting outer panel 312 and the longitudinal beam 1, thereby improving the connection strength between the crossbeam connecting outer panel 312 and the longitudinal beam 1. The outer panel extension 3121 may be connected to the outer sidewall and bottom wall of the longitudinal beam 1. The outer panel extension 3121 may be welded to both the outer sidewall and bottom wall of the longitudinal beam 1, thereby forming a connection edge at the upper end of the crossbeam connecting outer panel 312 that aligns with the longitudinal beam 1. The connection edge may be S-shaped, and the connection edge may be the welding location of the outer panel extension 3121 and the longitudinal beam 1. That is, the weld bead at the connection between the outer panel extension 3121 and the longitudinal beam 1 may extend in an S-shape. By setting the connection edge structure to be S-shaped, the force at the connection edge can be optimized, which is beneficial to reducing the stress concentration phenomenon at the connection between the outer plate extension section 3121 and the longitudinal beam 1, and is beneficial to reducing the risk of local cracking of the frame assembly 100.

[0098] In some embodiments of the present application, a connection opening is formed at the upper end of the crossbeam connection bracket 31 , the opening size of which gradually increases from the front to the rear, and the connection opening is used to connect and cooperate with the longitudinal beam 1 .

[0099] The upper end of the crossbeam connecting bracket 31 can be open toward the longitudinal beam 1. A connecting opening can be formed at the upper end of the crossbeam connecting bracket 31. The crossbeam connecting bracket 31 located at the connecting opening can be connected and matched with the longitudinal beam 1. The crossbeam connecting bracket 31 located at the connecting opening can be welded to the longitudinal beam 1. The opening size of the connecting opening can gradually increase from front to back along the front-to-back direction of the vehicle. In other words, the connecting opening can be gradually expanded toward the rear. Along the front-to-back direction of the vehicle, the width dimension of the longitudinal beam 1 along the Y-direction gradually increases from front to back. The opening size of the connecting opening can be adapted to the width dimension of the longitudinal beam 1, thereby allowing the crossbeam connecting bracket 31 to better fit and assemble with the longitudinal beam 1, further increasing the contact area between the crossbeam connecting bracket 31 and the longitudinal beam 1, improving the integrity of the crossbeam connecting bracket 31 and the longitudinal beam 1, and further improving the connection strength between the crossbeam connecting bracket 31 and the longitudinal beam 1. It can also improve the connection strength between the long longitudinal tie rod mounting bracket 3 and the longitudinal beam 1.

[0100] In some embodiments of the present application, the frame assembly 100 also includes a short longitudinal tie rod mounting bracket 4, which is arranged on the front side of the long longitudinal bracket 32 and the crossbeam connecting bracket 31, and is connected to the crossbeam connecting bracket 31, the long longitudinal bracket 32 and the longitudinal beam 1. The short longitudinal tie rod mounting bracket 4 forms a short longitudinal tie rod mounting cavity 401, and one end of the short longitudinal tie rod is connected to the short longitudinal tie rod mounting bracket 4.

[0101] The short longitudinal tie rod mounting bracket 4 can be disposed in front of the long longitudinal bracket 32 and the crossbeam connecting bracket 31. The short longitudinal tie rod mounting bracket 4 can be located below the longitudinal beam 1. The short longitudinal tie rod mounting bracket 4 can be connected to the crossbeam connecting bracket 31, the long longitudinal bracket 32, and the longitudinal beam 1, respectively. The short longitudinal tie rod mounting bracket 4 can be welded to the crossbeam connecting bracket 31, the short longitudinal tie rod mounting bracket 4 can be welded to the long longitudinal bracket 32, and the short longitudinal tie rod mounting bracket 4 can be welded to the longitudinal beam 1. The short longitudinal tie rod mounting bracket 4 can form a short longitudinal tie rod mounting cavity 401. One end of the short longitudinal tie rod can be mounted within the short longitudinal tie rod mounting cavity 401. A portion of the short longitudinal tie rod mounting cavity 401 can be open to the front, allowing the short longitudinal tie rod to be arranged in the front-to-back direction. One end of the short longitudinal tie rod can be connected to the short longitudinal tie rod mounting bracket 4, and the other end of the short longitudinal tie rod can be connected to the vehicle axle.

[0102] It should be noted that the front side of the long longitudinal bracket 32 and the cross beam connecting bracket 31 refers to the side of the long longitudinal bracket 32 and the cross beam connecting bracket 31 close to the front of the vehicle along the front-rear direction of the vehicle.

[0103] The short longitudinal tie rod mounting bracket 4 can be used to install the short longitudinal tie rod, and the long longitudinal tie rod mounting bracket 3 can be used to install the long longitudinal tie rod. By setting the short longitudinal tie rod mounting bracket 4 to be connected to the cross beam connecting bracket 31 and the long longitudinal bracket 32 respectively, the short longitudinal tie rod mounting bracket 4 and the long longitudinal tie rod mounting bracket 3 can be constructed as a whole, which is beneficial to strengthening the overall structural strength of the short longitudinal tie rod mounting bracket 4 and the long longitudinal tie rod mounting bracket 3, and is beneficial to strengthening the structural strength of the frame assembly 100.

[0104] The crossbeam connecting bracket 31 can be connected to the longitudinal beam 1, and the short longitudinal tie rod mounting bracket 4 can be connected to the crossbeam connecting bracket 31, the long longitudinal bracket 32, and the longitudinal beam 1. The two sets of short longitudinal tie rod mounting brackets 4 can be connected via the third crossbeam 23. The two sets of short longitudinal tie rod mounting brackets 4 can also be connected to the longitudinal beam 1 respectively, which helps to further optimize the force transmission path of the frame assembly 100, further helps to further improve the overall torsional rigidity of the frame assembly 100, helps to further provide good rigidity for the vehicle body under strong off-road conditions, and helps to further reduce deformation of the frame assembly 100.

[0105] In some embodiments of the present application, the short longitudinal pull rod mounting bracket 4 includes: a short longitudinal bracket inner plate 41 and a short longitudinal bracket outer plate 42, the short longitudinal bracket inner plate 41 is respectively connected to the cross beam connecting inner plate 311 and the longitudinal beam 1, the short longitudinal bracket outer plate 42 is respectively connected to the long longitudinal bracket 32 and the longitudinal beam 1, and the short longitudinal bracket outer plate 42 and the short longitudinal bracket inner plate 41 are buckled together along the Y direction and enclosed to form a short longitudinal pull rod mounting cavity 401.

[0106] The short longitudinal bracket inner plate 41 and the short longitudinal bracket outer plate 42 can be arranged along the Y direction, and the short longitudinal bracket outer plate 42 can be located on the outside of the short longitudinal bracket inner plate 41. It should be noted that "the outside of the short longitudinal bracket inner plate 41" refers to the side of the short longitudinal bracket inner plate 41 away from the central axis of the frame assembly 100 in the Y direction. The short longitudinal bracket inner plate 41 can be connected to the crossbeam connecting inner plate 311 and the longitudinal beam 1 respectively, and the short longitudinal bracket inner plate 41 can be welded to the crossbeam connecting inner plate 311 and the longitudinal beam 1. The short longitudinal bracket outer plate 42 can be connected to the long longitudinal bracket 32 and the longitudinal beam 1 respectively, and the short longitudinal bracket outer plate 42 can be welded to the long longitudinal bracket 32 and the longitudinal beam 1, and the long longitudinal bracket 32 can be located between the crossbeam connecting outer plate 312 and the short longitudinal bracket outer plate 42. By providing the short longitudinal bracket outer plate 42 which can be connected to the long longitudinal bracket 32 and the longitudinal beam 1 respectively, the force of the long longitudinal bracket 32 on the crossbeam connecting outer plate 312 can be effectively transferred to the longitudinal beam 1.

[0107] At least a portion of the short longitudinal bracket outer plate 42 can be spaced apart from at least a portion of the short longitudinal bracket inner plate 41 along the Y direction, the short longitudinal bracket outer plate 42 and the short longitudinal bracket inner plate 41 can be buckled together along the Y direction, the short longitudinal bracket outer plate 42 and the short longitudinal bracket inner plate 41 can enclose a short longitudinal tie rod installation cavity 401, and one end of the short longitudinal tie rod can be installed in the short longitudinal tie rod installation cavity 401. One end of the short longitudinal tie rod can be connected to the short longitudinal bracket outer plate 42 and the short longitudinal bracket inner plate 41 respectively, the short longitudinal tie rod can be connected to the short longitudinal bracket outer plate 42 by bolts, and the short longitudinal tie rod can be connected to the short longitudinal bracket inner plate 41 by bolts. By setting one end of the short longitudinal tie rod to be connected to the short longitudinal bracket outer plate 42 and the short longitudinal bracket inner plate 41 respectively, it is beneficial to enhance the ability of the short longitudinal tie rod mounting bracket 4 to support the short longitudinal tie rod. The force on the short longitudinal tie rod can be evenly transmitted to the short longitudinal bracket outer plate 42 and the short longitudinal bracket inner plate 41, which can reduce the stress concentration on the short longitudinal tie rod mounting bracket 4, which is beneficial to improve the strength and rigidity of the short longitudinal tie rod mounting bracket 4, and reduce the probability of the short longitudinal tie rod mounting bracket 4 cracking or damage.

[0108] In some embodiments of the present application, the rear end of the short longitudinal bracket outer panel 42 is formed with a short longitudinal bracket outer panel flange 421 that is folded outward, and the short longitudinal bracket outer panel flange 421 is connected to and cooperated with the front side wall of the long longitudinal bracket 32 .

[0109] The rear end of the short longitudinal bracket outer panel 42 can be formed with a short longitudinal bracket outer panel flange 421 that folds outward, that is, the end of the short longitudinal bracket outer panel 42 close to the long longitudinal bracket 32 can be formed with a short longitudinal bracket outer panel flange 421, and the short longitudinal bracket outer panel flange 421 can be folded toward the side of the short longitudinal bracket outer panel 42 that is away from the short longitudinal bracket inner panel 41. The short longitudinal bracket outer panel flange 421 can be connected and matched with the front side wall surface of the long longitudinal bracket 32, and the short longitudinal bracket outer panel flange 421 can be arranged to fit the front side wall surface of the long longitudinal bracket 32 by overlapping from front to back. As an example, the short longitudinal bracket outer panel flange 421 and the front side wall surface of the long longitudinal bracket 32 can preferably be conformally fitted, and the shape of the short longitudinal bracket outer panel flange 421 can be adapted to the front side wall surface of the long longitudinal bracket 32.

[0110] By setting the short longitudinal bracket outer plate flange 421, the contact area between the short longitudinal bracket outer plate 42 and the long longitudinal bracket 32 can be increased, and a local double-layer plate structure can be formed between the short longitudinal bracket outer plate 42 and the long longitudinal bracket 32, which is beneficial to improving the connection strength between the short longitudinal bracket outer plate 42 and the long longitudinal bracket 32, and is beneficial to further strengthening the overall structural strength of the short longitudinal tie rod mounting bracket 4 and the long longitudinal tie rod mounting bracket 3, and is beneficial to further enhancing the structural strength of the frame assembly 100.

[0111] In some embodiments of the present application, the short longitudinal bracket inner plate 41 is provided with a short longitudinal bracket inner plate connecting plate 411, part of the short longitudinal bracket inner plate connecting plate 411 is provided on the inner side of the cross-beam connecting inner plate 311, and is connected and fixed to the cross-beam connecting inner plate 311, and / or, part of the short longitudinal bracket inner plate connecting plate 411 is provided on the front side of the cross-beam connecting inner plate 311, and is connected and fixed to the cross-beam connecting inner plate 311.

[0112] The short longitudinal bracket inner plate 41 may be provided with a short longitudinal bracket inner plate connecting plate 411, and the short longitudinal bracket inner plate connecting plate 411 may be used to be fixedly connected to the crossbeam connecting inner plate 311. Part of the short longitudinal bracket inner plate connecting plate 411 may be provided on the inner side of the crossbeam connecting inner plate 311, or part of the short longitudinal bracket inner plate connecting plate 411 may be provided on the front side of the crossbeam connecting inner plate 311, or part of the short longitudinal bracket inner plate connecting plate 411 may be provided on the inner side of the crossbeam connecting inner plate 311, and part of the short longitudinal bracket inner plate connecting plate 411 may be provided on the front side of the crossbeam connecting inner plate 311. The embodiment of the present application is described by taking as an example that part of the short longitudinal bracket inner plate connecting plate 411 is provided on the inner side of the crossbeam connecting inner plate 311, and part of the short longitudinal bracket inner plate connecting plate 411 is provided on the front side of the crossbeam connecting inner plate 311.

[0113] Part of the short longitudinal bracket inner plate connecting plate 411 is arranged on the inner side of the cross-beam connecting inner plate 311, that is, part of the short longitudinal bracket inner plate connecting plate 411 is arranged on the side of the cross-beam connecting inner plate 311 facing the central axis of the frame assembly 100 in the Y direction, that is, part of the short longitudinal bracket inner plate connecting plate 411 is arranged on the side of the cross-beam connecting inner plate 311 facing away from the cross-beam connecting outer plate 312 in the Y direction. Part of the short longitudinal bracket inner plate connecting plate 411 arranged on the inner side of the cross-beam connecting inner plate 311 can be overlapped with the cross-beam connecting inner plate 311, and part of the short longitudinal bracket inner plate connecting plate 411 arranged on the inner side of the cross-beam connecting inner plate 311 can be welded to the cross-beam connecting inner plate 311, which is conducive to forming a local double-layer plate structure between the short longitudinal bracket inner plate 41 and the cross-beam connecting inner plate 311, which is conducive to increasing the contact area between the short longitudinal bracket inner plate 41 and the cross-beam connecting inner plate 311, and is conducive to increasing the connection strength between the short longitudinal bracket inner plate 41 and the cross-beam connecting inner plate 311.

[0114] Part of the short longitudinal bracket inner plate connecting plate 411 can be arranged on the front side of the cross-beam connecting inner plate 311, that is, part of the short longitudinal bracket inner plate connecting plate 411 can be arranged on the side of the cross-beam connecting inner plate 311 close to the front of the vehicle in the front-rear direction. Part of the short longitudinal bracket inner plate connecting plate 411 arranged on the front side of the cross-beam connecting inner plate 311 can be overlapped with the cross-beam connecting inner plate 311, and part of the short longitudinal bracket inner plate connecting plate 411 arranged on the front side of the cross-beam connecting inner plate 311 can be welded to the cross-beam connecting inner plate 311, which is conducive to further forming a local double-layer plate structure between the short longitudinal bracket inner plate 41 and the cross-beam connecting inner plate 311, which is conducive to further increasing the contact area between the short longitudinal bracket inner plate 41 and the cross-beam connecting inner plate 311, and is conducive to further increasing the connection strength between the short longitudinal bracket inner plate 41 and the cross-beam connecting inner plate 311.

[0115] By arranging part of the short longitudinal bracket inner plate connecting plate 411 on the inner side of the cross-beam connecting inner plate 311, and part of the short longitudinal bracket inner plate connecting plate 411 on the front side of the cross-beam connecting inner plate 311, multiple local double-layer plate structures can be formed between the short longitudinal bracket inner plate 41 and the cross-beam connecting inner plate 311, which is beneficial to further increase the contact area between the short longitudinal bracket inner plate 41 and the cross-beam connecting inner plate 311, and is beneficial to further increase the connection strength between the short longitudinal bracket inner plate 41 and the cross-beam connecting inner plate 311.

[0116] In some embodiments of the present application, a first short longitudinal bracket inner plate lap plate section 412 is provided at the front portion of the short longitudinal bracket inner plate 41, and a first short longitudinal bracket outer plate lap plate section 422 is provided at the front portion of the short longitudinal bracket outer plate 42, and the first short longitudinal bracket inner plate lap plate section 412 and the first short longitudinal bracket outer plate lap plate section 422 are overlapped and connected along the front-to-back direction; and / or, a second short longitudinal bracket inner plate lap plate section 413 is provided at the bottom of the short longitudinal bracket inner plate 41, and a second short longitudinal bracket outer plate lap plate section 423 is provided at the bottom of the short longitudinal bracket outer plate 42, and the second short longitudinal bracket inner plate lap plate section 413 and the second short longitudinal bracket outer plate lap plate section 423 are overlapped and connected along the vertical direction.

[0117] In some embodiments of the present application, the long longitudinal tie rod mounting bracket 3 includes: a cross beam connecting bracket 31 , a connection point reinforcement plate 34 , a support tube 35 and a long longitudinal bracket 32 .

[0118] Among them, the crossbeam connecting bracket 31 is connected to the bottom of the longitudinal beam 1 and forms a crossbeam installation cavity. Part of the third crossbeam 23 can be extended into the crossbeam installation cavity and connected to the crossbeam connecting bracket 31. The crossbeam installation cavity is a accommodating structure for plugging and cooperating with the third crossbeam 23, so that after the third crossbeam 23 is extended into the crossbeam installation cavity, the third crossbeam 23 is connected and fixed to the crossbeam connecting bracket 31; the connection point reinforcement plate 34 is provided in the crossbeam installation cavity and connected to the crossbeam connecting bracket 31. The connection point reinforcement plate 34 is fixed on the crossbeam connecting bracket 31 to improve the local strength of the crossbeam connecting bracket 31; the support tube 3 5 is installed on the connection point reinforcement plate 34 and the crossbeam connection bracket 31. Part of the support tube 35 extends out of the crossbeam connection bracket 31 from the crossbeam installation cavity and forms a long longitudinal tie rod inner connection point 313 on the outside of the crossbeam connection bracket 31. The support tube 35 is connected to the connection point reinforcement plate 34 and the crossbeam connection bracket 31, thereby improving the structural strength of the long longitudinal tie rod installation position. The support tube 35 partially extends outward to form the long longitudinal tie rod inner connection point 313. When the long longitudinal tie rod is impacted, the load can be transferred to the crossbeam connection bracket 31 and the third crossbeam 23, thereby preventing deformation at the long longitudinal tie rod installation point.

[0119] Furthermore, the long longitudinal bracket 32 is connected to the outside of the cross beam connecting bracket 31 and is connected and cooperated with the longitudinal beam 1, and the long longitudinal bracket 32 is formed with a long longitudinal rod outer connection point 322 which is arranged opposite to the long longitudinal rod inner connection point 313 in the Y direction. The long longitudinal bracket 32 is formed with a long longitudinal rod outer connection point 322, and the long longitudinal rod is connected to the long longitudinal rod inner connection point 313 and the long longitudinal rod outer connection point 322. After the long longitudinal rod is impacted, the load can be transferred to the longitudinal beam 1 to avoid deformation at the long longitudinal rod installation point.

[0120] In the related art, the span between the two cross beams in the front section of the frame is large, and the center point of the front suspension installation is higher than the lower surface of the longitudinal beam. The large span and long cantilever will make the overall torsion of the frame greater, and the bracket connected to the cross and longitudinal beams 1 has a higher ability to resist torsional deformation; it is easy to cause a sharp deterioration in fatigue at the installation point of the long longitudinal tie rod bracket, and the problem cannot be solved by conventional material improvement or increasing the material thickness.

[0121] Based on this, in this application, the support tube 35 is supported and fixed by setting a connection point reinforcement plate 34, thereby improving the structural strength of the long longitudinal pull rod installation position, and the long longitudinal pull rod can transfer the load to the cross beam connection bracket 31 and the third cross beam 23, thereby avoiding deformation of the long longitudinal pull rod at the long longitudinal pull rod installation point after being impacted.

[0122] The crossbeam connecting bracket 31 includes: a crossbeam connecting outer plate 312, the crossbeam connecting outer plate 312 and the connection point reinforcement plate 34 are arranged opposite to each other in the Y direction, and the support tube 35 is connected and supported on the crossbeam connecting outer plate 312 and the connection point reinforcement plate 34; a crossbeam connecting inner plate 311, the crossbeam connecting inner plate 311 is connected to the inner side of the crossbeam connecting outer plate 312, and is enclosed with the crossbeam connecting outer plate 312 to form a crossbeam installation cavity, and the crossbeam connecting inner plate 311 and the crossbeam connecting inner plate 311 are respectively connected and cooperated with the longitudinal beam 1.

[0123] In some embodiments, a second support tube mounting hole 31221 is formed on the crossbeam connecting outer plate 312, and a first support tube mounting hole 3411 is formed on the connection point reinforcement plate 34. The two ends of the support tube 35 are respectively supported and connected to the second support tube mounting hole 31221 and the first support tube mounting hole 3411 to achieve the connection of the support tube 35, thereby improving the structural strength at the installation position of the long longitudinal pull rod.

[0124] One end portion of the support tube 35 facing the crossbeam connecting outer plate 312 extends out of the second support tube mounting hole 31221 to form an inner connection point 313 of the long longitudinal pull rod. The inner connection point 313 of the long longitudinal pull rod is used to connect with the long longitudinal pull rod. After the long longitudinal pull rod is impacted, the load can be transferred to the crossbeam connecting bracket 31 and the third crossbeam 23 to avoid deformation of the long longitudinal pull rod at the long longitudinal pull rod mounting point after the long longitudinal pull rod is impacted.

[0125] The cross-beam connecting inner plate 311 and the cross-beam connecting outer plate 312 are both connected to the longitudinal beam 1. The cross-beam connecting inner plate 311 is connected to the inner side of the cross-beam connecting outer plate 312. The cross-beam connecting inner plate 311 and the cross-beam connecting outer plate 312 enclose a cross-beam installation cavity. The cross-beam installation cavity serves as a accommodating structure for plugging and cooperating with the third cross-beam 23. After the third cross-beam 23 is extended into the cross-beam installation cavity, the third cross-beam 23 is connected and fixed to the cross-beam connecting bracket 31.

[0126] In this way, the structural strength of the long longitudinal tie rod installation position is improved, and after the long longitudinal tie rod is impacted, the load can be transferred to the longitudinal beam 1 and the third crossbeam 23 through the crossbeam connecting inner plate 311 and the crossbeam connecting outer plate 312, thereby avoiding deformation at the long longitudinal tie rod installation point.

[0127] The long longitudinal bracket 32 includes: a long longitudinal bracket main board section 323, which is arranged relative to the cross-beam connecting outer plate 312 in the Y direction, and the long longitudinal bracket main board section 323 forms a long longitudinal pull rod outer connection point 322; a long longitudinal bracket front plate section 324, which is connected to the front side of the long longitudinal bracket main board section 323, and is folded inwardly relative to the long longitudinal bracket main board section 323 to be connected to the cross-beam connecting outer plate 312; a long longitudinal bracket rear plate section 325, which is connected to the rear side of the long longitudinal bracket main board section 323, and is folded inwardly relative to the long longitudinal bracket main board section 323 to be connected to the cross-beam connecting outer plate 312.

[0128] In some embodiments, the upper end of the long longitudinal bracket main board section 323 is connected to the longitudinal beam 1, the front end of the long longitudinal bracket main board section 323 is connected to the long longitudinal bracket front plate section 324, the long longitudinal bracket front plate section 324 is folded inwardly and connected to the cross beam connected outer plate 312, the rear end of the longitudinal bracket main board section 323 is connected to the long longitudinal bracket rear plate section 325, the long longitudinal bracket main board section 323 is folded inwardly and connected to the cross beam connected outer plate 312.

[0129] In this way, the structural strength of the long longitudinal tie rod installation position is improved. After the long longitudinal tie rod is impacted, the load can be transferred to the longitudinal beam 1, the cross beam connecting bracket 31 and the third cross beam 23, avoiding deformation at the long longitudinal tie rod installation point.

[0130] According to the vehicle frame assembly 100 of the embodiment of the present application, the long longitudinal bracket main board section 323 is provided with a long longitudinal tie rod mounting boss, which protrudes toward the side of the crossbeam connection outer plate 312 and is arranged around the long longitudinal tie rod outer connection point 322.

[0131] In some embodiments, the long longitudinal bracket main plate section 323 protrudes inward, that is, protrudes toward the side of the crossbeam connecting outer plate 312, to form a long longitudinal pull rod mounting boss.

[0132] As a result, the structural strength of the long vertical bracket 32 is improved, and deformation of the long vertical bracket 32 is avoided after the long vertical bracket 32 is impacted.

[0133] According to the vehicle frame assembly 100 of the embodiment of the present application, the cross-beam connected inner plate 311 includes: a cross-beam connected inner plate front plate section 3111 and a cross-beam connected inner plate rear plate section 3112, the cross-beam connected inner plate front plate section 3111 and the cross-beam connected inner plate rear plate section 3112 are opposite to and spaced apart in the X-direction, the connection point reinforcement plate 34 is respectively connected and cooperated with the cross-beam connected inner plate front plate section 3111 and the cross-beam connected inner plate rear plate section 3112; the cross-beam connected inner plate main plate section 3113, the cross-beam connected inner plate main plate section 3113 is connected between the cross-beam connected inner plate front plate section 3111 and the cross-beam connected inner plate rear plate section 3112, and is connected and cooperated with the longitudinal beam 1.

[0134] In some embodiments, the cross-beam connecting the inner panel 311 includes a cross-beam connecting the inner panel main panel section 3113, a cross-beam connecting the inner panel front panel section 3111 and a cross-beam connecting the inner panel rear panel section 3112. The upper end of the cross-beam connecting the inner panel main panel section 3113 is connected to the longitudinal beam 1. The cross-beam connecting the inner panel main panel section 3113 extends from outside to inside in a top-to-bottom direction. The front end of the cross-beam connecting the inner panel main panel section 3113 is connected to the cross-beam connecting the inner panel front panel section 3111, and the rear end of the cross-beam connecting the inner panel main panel section 3113 is connected to the cross-beam connecting the inner panel rear panel section 3112. The connection point reinforcement plate 34 is respectively connected to the cross-beam connecting the inner panel front panel section 3111 and the cross-beam connecting the inner panel rear panel section 3112.

[0135] As a result, the connection strength between the crossbeam connecting inner plate 311 and the connection point reinforcement plate 34 is improved, thereby improving the structural strength of the long longitudinal tie rod installation position, avoiding deformation of the long longitudinal tie rod installation point after the long longitudinal tie rod is impacted.

[0136] A weight-reducing hole is formed on at least one of the cross-beam connecting inner panel main panel section 3113, the cross-beam connecting inner panel front panel section 3111 and the cross-beam connecting inner panel rear panel section 3112, and there may be multiple weight-reducing holes.

[0137] Therefore, the connection strength between the beam connection inner plate 311 and the connection point reinforcement plate 34 is improved, and the beam connection inner plate 311 is reduced in weight.

[0138] According to the vehicle frame assembly 100 of the embodiment of the present application, the connection point reinforcement plate 34 includes: a reinforcement plate main plate section 341, which is arranged relative to the crossbeam connecting outer plate 312 in the Y direction and is formed with a first support tube mounting hole 3411, and the first support tube mounting hole 3411 is penetrated and cooperated with the support tube 35; a reinforcement plate front plate section 342, which is connected to the front side of the reinforcement plate main plate section 341, and is folded outward relative to the reinforcement plate main plate section 341 to be connected to the crossbeam connecting inner plate front plate section 3111; a reinforcement plate rear plate section 343, which is connected to the rear side of the reinforcement plate main plate section 341, and is folded outward relative to the reinforcement plate main plate section 341 to be connected to the crossbeam connecting inner plate rear plate section 3112.

[0139] In some embodiments, a first support tube mounting hole 3411 is formed on the main plate section 341 of the reinforcing plate, the support tube 35 is supported and connected at the first support tube mounting hole 3411, the front plate section 342 of the reinforcing plate is connected to the front plate section 3111 of the inner plate connected to the cross beam, and the rear plate section 343 of the reinforcing plate is connected to the rear plate section 3112 of the inner plate connected to the cross beam.

[0140] Therefore, the front plate section 342 of the reinforcing plate is connected to the front plate section 3111 of the inner plate connected to the cross beam to form a double-layer plate structure, and the rear plate section 343 of the reinforcing plate is connected to the rear plate section 3112 of the inner plate connected to the cross beam to form a double-layer plate structure, thereby improving the connection strength between the inner plate 311 connected to the cross beam and the reinforcing plate 34 at the connection point, thereby improving the structural strength at the installation position of the long longitudinal pull rod, and avoiding deformation at the installation point of the long longitudinal pull rod after the long longitudinal pull rod is impacted.

[0141] A weight-reducing hole is formed on at least one of the reinforcing plate main plate section 341 , the reinforcing plate front plate section 342 and the reinforcing plate rear plate section 343 , and there may be a plurality of weight-reducing holes.

[0142] Therefore, the connection strength between the cross beam connection inner plate 311 and the connection point reinforcement plate 34 is improved, and the connection point reinforcement plate 34 is made lighter.

[0143] According to the vehicle frame assembly 100 of the embodiment of the present application, the cross-beam connecting outer panel 312 includes: a cross-beam connecting outer panel main panel section 3122, the cross-beam connecting outer panel main panel section 3122 is opposite to and spaced from the reinforcing panel main panel section 341 and is formed with a second support tube mounting hole 31221, the second support tube mounting hole 31221 is used for allowing the support tube 35 to pass through the cross-beam mounting cavity; a cross-beam connecting outer panel front panel section 3123, the cross-beam connecting outer panel front panel section 3123 is connected to the front side of the cross-beam connecting outer panel main panel section 3122 and folded inwardly to be connected to the cross-beam connecting inner panel front panel section 3111; a cross-beam connecting outer panel rear panel section 3124, the cross-beam connecting outer panel rear panel section 3124 is connected to the rear side of the cross-beam connecting outer panel main panel section 3122 and folded inwardly to be connected to the cross-beam connecting inner panel rear panel section 3112.

[0144] In some embodiments, a second support tube mounting hole 31221 corresponding to the first support tube mounting hole 3411 is provided on the cross-beam connecting the outer panel main panel section 3122, and the support tube 35 is supported and connected at the first support tube mounting hole 3411 and the second support tube mounting hole 31221, the cross-beam connecting the outer panel front panel section 3123 is connected to the cross-beam connecting the inner panel front panel section 3111, and the cross-beam connecting the outer panel rear panel section 3124 is connected to the cross-beam connecting the inner panel rear panel section 3112.

[0145] Therefore, the cross beam connecting the outer panel front section 3123 and the cross beam connecting the inner panel front section 3111 are connected to form a double-layer panel structure, and the cross beam connecting the outer panel rear section 3124 and the cross beam connecting the inner panel rear section 3112 are connected to form a double-layer panel structure, thereby improving the connection strength between the cross beam connecting the outer panel 312 and the cross beam connecting the inner panel 311, thereby improving the structural strength at the installation position of the long longitudinal pull rod, and avoiding deformation at the installation point of the long longitudinal pull rod after the long longitudinal pull rod is impacted.

[0146] According to the vehicle frame assembly 100 of the embodiment of the present application, the cross-beam connecting outer panel 312 further includes a cross-beam connecting outer panel lower panel section 3125, and the cross-beam connecting outer panel lower panel section 3125 is connected to the bottom of the cross-beam connecting outer panel main panel section 3122 and folded inwardly; the connection point reinforcement plate 34 further includes a reinforcement plate lower panel section 344, and the reinforcement plate rear panel section 343 is connected to the bottom of the reinforcement plate main panel section 341 and folded outwardly to be connected to the cross-beam connecting outer panel lower panel section 3125.

[0147] In some embodiments, the cross-beam connecting outer panel lower plate section 3125 is connected to the bottom of the cross-beam connecting outer panel main plate section 3122 and is folded toward the side of the cross-beam connecting inner panel 311. The reinforcing plate lower plate section 344 is connected to the bottom of the reinforcing plate main plate section 341 and is folded toward the side of the cross-beam connecting outer panel 312. The reinforcing plate lower plate section 344 is connected to the cross-beam connecting outer panel lower plate section 3125.

[0148] Therefore, the lower plate section 344 of the reinforcing plate is connected to the lower plate section 3125 of the cross beam connecting the outer plate to form a double-layer plate structure, which improves the connection strength between the cross beam connecting the outer plate 312 and the cross beam connecting the inner plate 311, thereby improving the structural strength at the installation position of the long longitudinal tie rod, and avoiding deformation at the installation point of the long longitudinal tie rod after the long longitudinal tie rod is impacted.

[0149] A weight-reducing hole is formed on the lower plate section 3125 of the crossbeam connecting the outer plate, and there may be multiple weight-reducing holes.

[0150] Thus, the connection strength between the cross beam connection inner plate 311 and the connection point reinforcement plate 34 is improved, and the weight is reduced.

[0151] According to the vehicle frame assembly 100 of the embodiment of the present application, the long longitudinal bracket front plate section 324 is formed with a long longitudinal tie rod avoidance opening 326 , and the long longitudinal tie rod avoidance opening 326 is extended upward from the lower edge of the long longitudinal bracket front plate section 324 .

[0152] In some embodiments, the front plate section 324 of the long longitudinal bracket is formed with a notch open to the downward side, and the long longitudinal pull rod is installed in the notch.

[0153] Thus, while ensuring the contact area and self-strength of the front plate section 3123 of the outer plate connected to the cross beam, an avoidance structure for the long longitudinal pull rod is formed, thereby avoiding the long longitudinal pull rod while ensuring the connection strength between the cross beam connecting the outer plate 312 and the long longitudinal bracket 32.

[0154] In some embodiments, the reinforcing plate front panel section 342 is connected to the cross-beam connected inner panel front panel section 3111 to form a double-layer panel structure, the reinforcing plate rear panel section 343 is connected to the cross-beam connected inner panel rear panel section 3112 to form a double-layer panel structure, the cross-beam connected outer panel front panel section 3123 is connected to the cross-beam connected inner panel front panel section 3111 to form a double-layer panel structure, the cross-beam connected outer panel rear panel section 3124 is connected to the cross-beam connected inner panel rear panel section 3112 to form a double-layer panel structure, and the reinforcing plate lower panel section 344 is connected to the cross-beam connected outer panel lower panel section 3125 to form a double-layer panel structure.

[0155] Therefore, when the connection point reinforcement plate 34 is connected to the crossbeam connection outer plate 312, a double-layer plate structure is formed. When the connection point reinforcement plate 34 is connected to the crossbeam connection inner plate 311, a double-layer plate structure is formed, which improves local strength and helps to improve the load-bearing performance. Furthermore, it can avoid deformation at the installation point of the long longitudinal pull rod after the long longitudinal pull rod is impacted.

[0156] In some embodiments, the third crossbeam 23 is connected to the crossbeam connecting bracket 31 via a connecting assembly, which includes a connecting bolt 331 and a connecting nut 332. The connecting bolt 331 is disposed through corresponding portions of the crossbeam connecting bracket 31 and the third crossbeam 23 and engages with the threads of the connecting nut 332 to securely connect the crossbeam connecting bracket 31 to the third crossbeam 23. The connecting bolt 331 can be secured to the crossbeam connecting bracket 31 by welding.

[0157] As a result, the connection strength between the third crossbeam 23 and the crossbeam connecting bracket 31 is improved, which helps to improve the load-bearing performance, and further, can prevent the long longitudinal tie rod from being deformed at the installation point after being impacted.

[0158] In some embodiments of the present application, the longitudinal beam 1 may extend along the length of the vehicle (i.e., the X direction of the vehicle), there may be two longitudinal beams 1, and the two longitudinal beams 1 may be spaced apart along the width of the vehicle (i.e., the Y direction of the vehicle). The third cross beam 23 may extend along the width of the vehicle. In the height direction of the vehicle (i.e., the Z direction of the vehicle), the third cross beam 23 may be disposed below the longitudinal beam 1, and in the width direction of the vehicle, the third cross beam 23 may be disposed between the two longitudinal beams 1. The third cross beam 23 may be welded, screwed, or otherwise connected to the two longitudinal beams 1.

[0159] The crossbeam connecting bracket 31 is connected to the longitudinal beam 1. The crossbeam connecting bracket 31 can be welded or screwed to the longitudinal beam 1. There can be two crossbeam connecting brackets 31, and the two crossbeam connecting brackets 31 can be spaced apart along the width direction of the vehicle. The two crossbeam connecting brackets 31 can be respectively connected to the corresponding longitudinal beam 1. The third crossbeam 23 can be connected to the two crossbeam connecting brackets 31. The third crossbeam 23 can be welded or screwed to the two crossbeam connecting brackets 31. The long longitudinal bracket 32 is connected to the outside of the crossbeam connecting bracket 31 (the outside refers to the side relatively far away from the vehicle's center axis). The long longitudinal bracket 32 can be used to install a long longitudinal tie rod. The long longitudinal bracket 32 can be welded or screwed to the crossbeam connecting bracket 31.

[0160] An inner connection point 313 of the long longitudinal rod is formed on the outer side of the crossbeam connecting bracket 31, and an outer connection point 322 of the long longitudinal rod is formed on the long longitudinal bracket 32. The inner connection point 313 of the long longitudinal rod and the outer connection point 322 of the long longitudinal rod are arranged relatively spaced apart along the width direction of the vehicle, and the long longitudinal rod can be connected to the inner connection point 313 of the long longitudinal rod and the outer connection point 322 of the long longitudinal rod at the same time.

[0161] Furthermore, in the projection in the Y direction, the projection of the inner connection point 313 of the long longitudinal tie rod and the projection of the outer connection point 322 of the long longitudinal tie rod both fall within the projection range of the third cross beam 23, thereby placing the installation position of the long longitudinal tie rod (i.e., the hard point of the long longitudinal tie rod) on the extension line of the third cross beam 23. This arrangement can make the installation position of the long longitudinal tie rod correspond to the third cross beam 23 in the width direction of the vehicle. When the vehicle is subjected to a force from the ground and the force is transmitted to the long longitudinal tie rod mounting bracket 3, the third cross beam 23 can be used to bear and disperse the force to reduce the torsional effect of the force on the long longitudinal tie rod mounting bracket 3, thereby improving the overall torsional resistance of the frame assembly 100.

[0162] In the above embodiment, by making the installation position of the long longitudinal tie rod correspond to the third cross beam 23 in the width direction of the vehicle, the third cross beam 23 can bear and disperse the force transmitted to the long longitudinal tie rod mounting bracket 3, thereby reducing the negative impact of the force on the long longitudinal tie rod mounting bracket 3, thereby improving the overall torsional resistance and durability of the frame assembly 100.

[0163] In some embodiments of the present application, the beam connecting bracket 31 is provided with a first mounting hole 3141 and a second mounting hole 3142 .

[0164] Among them, the first mounting hole 3141 and the second mounting hole 3142 can be arranged at intervals, and the first mounting hole 3141 and the second mounting hole 3142 both pass through the crossbeam connecting bracket 31 along the X direction. The frame assembly 100 can also include multiple groups of connecting components, and the connecting components can include bolts, nuts, etc. Each group of connecting components can be penetrated and cooperated with the first mounting hole 3141 or the second mounting hole 3142.

[0165] The beam connecting bracket 31 can be provided with two groups of first mounting holes 3141 and second mounting holes 3142, wherein one group of first mounting holes 3141 and second mounting holes 3142 can be used to connect and cooperate with one end of the third beam 23 in the Y direction, and the other group of first mounting holes 3141 and second mounting holes 3142 can be used to connect and cooperate with the other end of the third beam 23 in the Y direction.

[0166] The third crossbeam 23 can be provided with a mating hole that can extend through the third crossbeam 23 in the X-direction. There can be two mating holes, each corresponding to the first mounting hole 3141 and the second mounting hole 3142. The two mating holes of the third crossbeam 23 can be arranged to correspond to the first mounting hole 3141 and the second mounting hole 3142 in the X-direction, and two corresponding connecting assemblies can be inserted into the first mounting hole 3141, the second mounting hole 3142, and the corresponding mating holes to securely connect the third crossbeam 23 to the crossbeam connecting bracket 31. This arrangement facilitates assembly and improves assembly efficiency. The screw connection method is highly versatile and adaptable, making it easy to adapt to different vehicle models. Furthermore, the screw connection method is easy to assemble and disassemble, making it convenient for maintenance.

[0167] In some embodiments of the present application, in the crossbeam connecting bracket 31, the first mounting hole 3141 can be provided below the second mounting hole 3142, and in the Y direction, the first mounting hole 3141 can be located inside the second mounting hole 3142. In a group of first mounting holes 3141 and second mounting holes 3142, the straight line connecting the center points of the first mounting holes 3141 and the second mounting holes 3142 forms an angle (non-right angle, non-flat angle) with the extension direction of the third crossbeam 23, so that the straight line connecting the center points of one group of first mounting holes 3141 and the second mounting holes 3142, the extension direction of the third crossbeam 23, and the straight line connecting the center points of another group of first mounting holes 3141 and the second mounting holes 3142 form a trapezoidal structure, thereby improving the connection stability between the third crossbeam 23 and the crossbeam connecting bracket 31. Furthermore, such an arrangement can reduce the spacing between the connecting components, providing space for arranging other vehicle components and facilitating an optimized spatial layout.

[0168] In some embodiments of the present application, the third crossbeam 23 may include: a third crossbeam connecting beam section 231 and a third crossbeam main beam section 232. There may be two third crossbeam connecting beam sections 231. Along the width direction of the vehicle, the third crossbeam main beam section 232 may be connected between the two third crossbeam connecting beam sections 231. The third crossbeam main beam section 232 and the two third crossbeam connecting beam sections 231 may be formed as one piece.

[0169] Among them, along the width direction of the vehicle, the two third crossbeam connecting beam sections 231 can be located at both ends of the third crossbeam 23, and the two third crossbeam connecting beam sections 231 can be used to be connected and fixed with the corresponding crossbeam connecting bracket 31, and the third crossbeam main beam section 232 is used to bear and disperse the torque transmitted to the third crossbeam 23.

[0170] Furthermore, along the height direction of the vehicle, the upper surface of the third crossbeam main beam section 232 can be higher than the center position of the first mounting hole 3141, so that the third crossbeam main beam section 232 can directly participate in torsional load-bearing, thereby improving the ability to bear and disperse the torque transmitted to the third crossbeam 23, and reducing the risk of damage to the third crossbeam 23 and the crossbeam connecting bracket 31 due to the position difference between the third crossbeam main beam section 232 and the first mounting hole 3141 (position difference along the height direction of the vehicle), which is beneficial to improving the reliability of the frame assembly 100.

[0171] As some embodiments of the present application, the third crossbeam main beam section 232 may be provided with a plurality of weight-reducing holes, and the number of the weight-reducing holes may be two, four, six, etc. The plurality of weight-reducing holes are evenly distributed in the third crossbeam main beam section 232 to reduce the weight of the third crossbeam main beam section 232 to achieve a lightweight design effect.

[0172] In some embodiments of the present application, the cross-beam connecting bracket 31 includes: a cross-beam connecting inner plate 311 and a cross-beam connecting outer plate 312 .

[0173] The cross-beam connecting outer plate 312 can be connected to the outside of the cross-beam connecting inner plate 311 and can be integrally formed with the cross-beam connecting outer plate 312. The cross-beam connecting outer plate 312 and the cross-beam connecting outer plate 312 can enclose and form a cavity structure, and part of the structure of the third cross-beam 23 can be located within the cavity structure. The design of the cavity structure can increase the contact area between the third cross-beam 23 and the cross-beam connecting bracket 31 after assembly, thereby improving the connection stability.

[0174] Furthermore, the beam connecting inner plate 311 can form a first mounting hole 3141 and a second mounting hole 3142. When the corresponding structure of the third beam 23 is located at the corresponding position in the cavity structure, bolts can be passed through the first mounting hole 3141, the second mounting hole 3142 and the corresponding matching holes to screw the third beam 23 to the beam connecting bracket 31. This structure is reasonable and easy to assemble, which can reduce the difficulty of assembly.

[0175] In some embodiments of the present application, the cross-beam connecting the inner panel 311 includes: a cross-beam connecting the inner panel front panel section 3111 , a cross-beam connecting the inner panel rear panel section 3112 , and a cross-beam connecting the inner panel main panel section 3113 .

[0176] Among them, along the length direction of the vehicle, the cross beam connecting the inner panel front plate section 3111 is located in front of the cross beam connecting the inner panel rear plate section 3112, and the cross beam connecting the inner panel main plate section 3113 can be connected between the cross beam connecting the inner panel front plate section 3111 and the cross beam connecting the inner panel rear plate section 3112. The cross beam connecting the inner panel front plate section 3111, the cross beam connecting the inner panel rear plate section 3112 and the cross beam connecting the inner panel main plate section 3113 can be formed as one piece.

[0177] Furthermore, along the length of the vehicle, the front section 3111 and the rear section 3112 of the cross-beam inner panel can be arranged opposite each other and spaced apart. Each section 3111 and the rear section 3112 are each provided with a set of first mounting holes 3141 and second mounting holes 3142. The first and second mounting holes 3141, 3142 of the front section 3111 and the rear section 3112 are arranged opposite each other along the X-direction to facilitate mounting of the third cross member 23. The main section 3113 of the cross-beam inner panel can be connected to and mated with the longitudinal beam 1. The main section 3113 can be welded to the longitudinal beam 1 to connect the cross-beam inner panel 311 to the longitudinal beam 1, thereby improving connection stability.

[0178] In some embodiments of the present application, the crossbeam connecting the outer panel 312 includes: a crossbeam connecting the outer panel main panel section 3122 , a crossbeam connecting the outer panel front panel section 3123 , and a crossbeam connecting the outer panel rear panel section 3124 .

[0179] The crossbeam connecting the outer panel main section 3122 can be connected between the crossbeam connecting the outer panel front section 3123 and the crossbeam connecting the outer panel rear section 3124. The crossbeam connecting the outer panel main section 3122, the crossbeam connecting the outer panel front section 3123, and the crossbeam connecting the outer panel rear section 3124 can be integrally formed. The crossbeam connecting the outer panel front section 3123 can be connected to the front side of the crossbeam connecting the outer panel main section 3122 and folded inward, while the crossbeam connecting the outer panel rear section 3124 can be connected to the rear side of the crossbeam connecting the outer panel main section 3122 and folded inward. This arrangement allows the crossbeam connecting the outer panel 312 to be easily enclosed with the crossbeam connecting the inner panel 311 to form a cavity structure. The crossbeam connecting the outer panel main section 3122 can form an inner connection point 313 for the long longitudinal tie rod for mounting the long longitudinal tie rod. This arrangement is structurally sound, easy to assemble, and has good structural stability.

[0180] In some embodiments of the present application, the long longitudinal bracket 32 includes: a long longitudinal bracket main plate section 323 , a long longitudinal bracket front plate section 324 and a long longitudinal bracket rear plate section 325 .

[0181] The long longitudinal support main plate section 323 can be connected between the long longitudinal support front plate section 324 and the long longitudinal support rear plate section 325. The long longitudinal support main plate section 323, the long longitudinal support front plate section 324, and the long longitudinal support rear plate section 325 can be integrally formed. Along the length of the vehicle, the long longitudinal support front plate section 324 can be connected to the front side of the long longitudinal support main plate section 323 and folded inwardly relative to the long longitudinal support main plate section 323 to connect to the crossbeam connecting outer plate 312. The long longitudinal support rear plate section 325 is connected to the rear side of the long longitudinal support main plate section 323 and folded inwardly relative to the long longitudinal support main plate section 323 to connect to the crossbeam connecting outer plate 312. Moreover, the long longitudinal support main plate section 323 and the crossbeam connecting outer plate 312 are arranged opposite each other in the Y direction, forming a long longitudinal tie rod outer connection point 322 for mounting the long longitudinal tie rod. This arrangement is structurally sound, easy to assemble, and has good structural stability.

[0182] In some embodiments of the present application, along the height direction (vertical direction) of the vehicle, the long longitudinal tie rod outer connection point 322 can be located in the middle position of the long longitudinal bracket main board section 323. When the axle and the long longitudinal tie rod mounting bracket 3 are assembled through the long longitudinal tie rod, the connection position of the long longitudinal tie rod mounting bracket 3 and the long longitudinal tie rod is slightly higher (compared to the high posture), so that the frame assembly 100 can be lifted to a relatively low position through the long longitudinal tie rod, so that the vehicle is configured as a medium posture model.

[0183] In other embodiments of the present application, along the height direction (vertical direction) of the vehicle, the long longitudinal tie rod outer connection point 322 can be located at the lower position of the long longitudinal bracket main board section 323. When the axle and the long longitudinal tie rod mounting bracket 3 are assembled through the long longitudinal tie rod, the connection position of the long longitudinal tie rod mounting bracket 3 and the long longitudinal tie rod is low (compared to the middle posture), so that the frame assembly 100 can be lifted to a higher position through the long longitudinal tie rod, so that the vehicle is configured as a high-posture model.

[0184] Therefore, by setting the long longitudinal bracket main board section 323 with different long longitudinal pull rod external connection point 322 positions, the long longitudinal bracket 32 can be replaced according to the needs of the vehicle, thereby realizing the conversion between the medium posture and the high posture, and realizing the sharing of the frame body (the frame body refers to other components except the long longitudinal bracket 32) in the frame assembly 100. The differentiated management of different vehicle models can be achieved through the structural differences of the long longitudinal bracket 32, which is conducive to realizing platform design and reducing the manufacturing cost of the entire vehicle.

[0185] Among them, when the external connection point 322 of the long longitudinal pull rod is set at the middle position of the long longitudinal bracket 32 in the vertical direction, the long longitudinal bracket 32 is connected and cooperated with the cross beam connecting bracket 31 and the longitudinal beam 1 respectively; when the external connection point 322 of the long longitudinal pull rod is set at the lower position of the long longitudinal bracket 32 in the vertical direction, the long longitudinal bracket 32 is connected to the cross beam connecting bracket 31.

[0186] It can be understood that the long longitudinal tie rod outer connection point 322 is set below the longitudinal beam 1. When the long longitudinal bracket 32 is only connected to the cross beam connecting bracket 31, the long longitudinal bracket 32 can be arranged further downward relative to the longitudinal beam 1, thereby increasing the downward arrangement position of the long longitudinal tie rod outer connection point 322 relative to the longitudinal beam 1, so as to realize the connection and coordination of the cross beam connecting bracket 31 and the long longitudinal bracket 32 with various structures, and then adjust the arrangement position of the long longitudinal tie rod outer connection point 322 to realize the frame assembly 100 matching vehicles of different posture models.

[0187] In other embodiments of the present application, the connecting assembly includes a connecting bolt 331 and a connecting nut 332. The connecting bolt 331 can pass through the first mounting hole 3141 or the second mounting hole 3142 to penetrate the crossbeam connecting bracket 31 and be threadedly engaged with the connecting nut 332 to connect and fix the crossbeam connecting bracket 31 to the third crossbeam 23. The screw connection method is simple to assemble, easy to disassemble, and has good structural stability, which is beneficial to improving the reliability of the frame assembly 100.

[0188] According to the embodiment of the present application, the tie rod bracket 5 includes a tie rod bracket front plate 51 , a tie rod bracket rear plate 52 and a tie rod bracket reinforcement plate 53 .

[0189] The tie rod support front plate 51 and the tie rod support rear plate 52 are interlocked in the front-to-back direction and are respectively connected to the longitudinal beam 1. The tie rod support reinforcement plate 53 is connected to the longitudinal beam 1 and is interlocked with the tie rod support front plate 51 and the tie rod support rear plate 52 from the outside to the inside in the Y direction. The tie rod support reinforcement plate 53, the tie rod support front plate 51, and the tie rod support rear plate 52 collectively form a cavity structure, thereby enhancing the structural strength of the tie rod support 5 and improving the load-bearing performance of the tie rod support 5.

[0190] It should be noted that the above-mentioned "Y direction" refers to the width direction of the frame assembly 100, and the inner side of the Y direction refers to the side of the frame assembly 100 close to the central axis, and the outer side of the Y direction refers to the side of the frame assembly 100 away from the central axis.

[0191] The tie rod bracket 5 in the embodiment of the present application is composed of a tie rod bracket front plate 51, a tie rod bracket rear plate 52 and a tie rod bracket reinforcement plate 53. The tie rod bracket front plate 51 and the tie rod bracket rear plate 52 are buckled together in the front-to-back direction, and are further buckled together from the outside to the inside through the tie rod bracket reinforcement plate 53 to enclose and form a cavity structure, thereby improving the load-bearing performance of the tie rod bracket 5 in the front-to-back direction and the inside-outside direction, and improving the installation reliability of the tie rod at the tie rod bracket 5.

[0192] It can be understood that by fastening the front plate 51 of the transverse rod bracket and the rear plate 52 of the transverse rod bracket in the front-to-back direction, the load-bearing performance of the transverse rod bracket 5 in the front-to-back direction can be improved, and the transverse rod bracket reinforcement plate 53 is further fastened and connected to the front plate 51 of the transverse rod bracket and the rear plate 52 of the transverse rod bracket in the Y direction to improve the load-bearing performance of the transverse rod bracket 5 in the inward and outward directions, thereby improving the stiffness of the transverse rod bracket 5 in the lateral direction, so that the durability and lateral stiffness of the transverse rod bracket 5 can meet the installation requirements of the transverse rod.

[0193] At the same time, a tie rod mounting portion 502 in the tie rod bracket 5 is formed on the tie rod bracket front plate 51 and the tie rod bracket rear plate 52. The tie rod mounting portion 502 is used to mate with the tie rod, thereby connecting one end of the tie rod to the longitudinal beam 1. The tie rod is arranged transversely in the vehicle frame assembly 100, and the other end of the tie rod is connected to the axle. In other words, an opening structure suitable for accommodating the inner tie rod can be formed in the area where the tie rod mounting portion 502 is formed on the tie rod bracket front plate 51 and the tie rod bracket rear plate 52, thereby preventing interference between the tie rod bracket 5 and the tie rod.

[0194] In the present application, the tie rod bracket reinforcement plate 53 is fastened and connected to the tie rod bracket front plate 51 and the tie rod bracket rear plate 52 from the outside to the inside along the Y direction, so that the tie rod bracket reinforcement plate 53 can fully avoid the tie rod and further improve the stiffness of the tie rod bracket 5 in the lateral direction.

[0195] According to the embodiment of the present application, the tie rod bracket 5 is connected and cooperated with the tie rod bracket front plate 51 and the tie rod bracket rear plate 52 respectively through the tie rod bracket 5 reinforcement plate, which can fully improve the lateral stiffness of the tie rod bracket 5 and the overall fatigue resistance and strength of the tie rod bracket 5, thereby ensuring the installation reliability of the tie rod.

[0196] In a further embodiment of the present application, the tie rod bracket reinforcement plate 53 includes: a tie rod bracket main reinforcement plate section 531 , a tie rod bracket front reinforcement plate section 532 , and a tie rod bracket rear reinforcement plate section 533 .

[0197] Among them, the main reinforcement plate section 531 of the transverse tie rod bracket is arranged on the outside of the longitudinal beam 1 in the Y direction, and the main reinforcement plate section 531 of the transverse tie rod bracket is connected to the longitudinal beam 1, the front reinforcement plate section 532 of the transverse tie rod bracket is connected to the front side of the main reinforcement plate section 531 of the transverse tie rod bracket, and the front reinforcement plate section 532 of the transverse tie rod bracket is connected to the front plate 51 of the transverse tie rod bracket, the rear reinforcement plate section 533 of the transverse tie rod bracket is arranged opposite to the front reinforcement plate section 532 of the transverse tie rod bracket in the X direction, and the rear reinforcement plate section 533 of the transverse tie rod bracket is connected to the rear side of the main reinforcement plate section 531 of the transverse tie rod bracket and is connected to the rear plate 52 of the transverse tie rod bracket.

[0198] Thus, the tie rod support reinforcement plate 53 can be arranged and fixed correspondingly to the tie rod support front plate 51 and the tie rod support rear plate 52 in the front-to-rear direction, thereby improving the connection effect of the tie rod support reinforcement plate 53 on the tie rod support front plate 51 and the tie rod support rear plate 52, so that the tie rod support reinforcement plate 53 can be enclosed with the tie rod support front plate 51 and the tie rod support rear plate 52 to form a cavity structure, thereby improving the lateral stiffness of the tie rod support 5.

[0199] The front reinforcement plate section 532 of the transverse rod bracket and the rear reinforcement plate section 533 of the transverse rod bracket are arranged relative to each other in the front-to-back direction, and the front reinforcement plate section 532 of the transverse rod bracket and the rear reinforcement plate section 533 of the transverse rod bracket are connected by the main reinforcement plate section 531 of the transverse rod bracket, so as to construct the transverse rod bracket reinforcement plate 53 into a U-shaped plate structure that is open to the inner side in the Y direction, which helps to improve the cavity structure enclosing effect of the transverse rod bracket 5, thereby improving the lateral stiffness of the transverse rod bracket 5.

[0200] In some embodiments of the present application, the transverse rod bracket reinforcement plate 53 is provided with a first reinforcement plate connecting flange 5341 that is folded and extended forward, and the first reinforcement plate connecting flange 5341 is connected to the transverse rod bracket main reinforcement plate section 531 and the transverse rod bracket front reinforcement plate section 532, and is respectively connected to the longitudinal beam 1 and the transverse rod bracket front plate 51.

[0201] Specifically, the first reinforcement plate connecting flange 5341 extends toward the front side on the transverse tie rod bracket reinforcement plate 53 to increase the corresponding area between the transverse tie rod bracket reinforcement plate 53 and the longitudinal beam 1 and the transverse tie rod bracket front plate 51, thereby ensuring the connection reliability between the transverse tie rod bracket reinforcement plate 53 and the longitudinal beam 1 and the transverse tie rod bracket front plate 51.

[0202] Among them, part of the main reinforcing plate section 531 of the transverse rod bracket protrudes upward from the front reinforcing plate section 532 of the transverse rod bracket, so that the main reinforcing plate section 531 of the transverse rod bracket can correspond to the outer side wall of the longitudinal beam 1 in the inward and outward directions, and the part of the first reinforcing plate connecting flange 5341 connected to the main reinforcing plate section 531 of the transverse rod bracket is connected and cooperated with the longitudinal beam 1, and the part of the first reinforcing plate connecting flange 5341 connected to the front reinforcing plate section 532 of the transverse rod bracket is connected and cooperated with the front plate 51 of the transverse rod bracket.

[0203] In a further embodiment of the present application, the front plate 51 of the transverse tie rod bracket is provided with a bracket front plate connecting plate section 513 extending toward the front side, and the bracket front plate connecting plate section 513 is connected and cooperated with the lower wall surface of the longitudinal beam 1. The bracket front plate connecting plate section 513 is vertically overlapped and connected to the first reinforcing plate connecting flange 5341, so that a multi-layer structure can be formed at the bracket front plate connecting plate section 513, which helps to improve the local strength of the transverse tie rod bracket 5 and the longitudinal beam 1, and reduce the risk of cracking at the connection between the transverse tie rod bracket 5 and the longitudinal beam 1.

[0204] The bracket front plate connecting plate segment 513 is disposed vertically opposite the bottom wall of the longitudinal beam 1, and the upper surface of the bracket front plate connecting plate segment 513 is connected to the bottom wall of the longitudinal beam 1. The bracket front plate connecting plate segment 513 can overlap the first reinforcement plate connecting flange 5341 to increase the contact area between the tie rod bracket front plate 51 and the tie rod bracket reinforcement plate 53, thereby improving the structural strength of the tie rod bracket 5 in the front area.

[0205] In some embodiments of the present application, the transverse rod bracket reinforcement plate 53 is provided with a second reinforcement plate connecting flange 5342 that is folded and extended toward the rear side, and the second reinforcement plate connecting flange 5342 is connected to the transverse rod bracket main reinforcement plate section 531 and the transverse rod bracket rear reinforcement plate section 533, and the second reinforcement plate connecting flange 5342 is respectively connected to the longitudinal beam 1 and the transverse rod bracket rear plate 52.

[0206] Specifically, the second reinforcement plate connecting flange 5342 extends rearward on the transverse tie rod bracket reinforcement plate 53 to increase the corresponding area between the transverse tie rod bracket reinforcement plate 53 and the longitudinal beam 1 and the transverse tie rod bracket rear plate 52, thereby ensuring the connection reliability between the transverse tie rod bracket reinforcement plate 53 and the longitudinal beam 1 and the transverse tie rod bracket rear plate 52.

[0207] Among them, part of the main reinforcement plate section 531 of the transverse rod bracket protrudes upward from the rear reinforcement plate section 533 of the transverse rod bracket, so that the main reinforcement plate section 531 of the transverse rod bracket can correspond to the outer side wall of the longitudinal beam 1 in the inward and outward directions, and the part of the second reinforcement plate connecting flange 5342 connected to the main reinforcement plate section 531 of the transverse rod bracket intercepts and cooperates with the longitudinal beam 1, and the part of the second reinforcement plate connecting flange 5342 connected to the rear reinforcement plate section 533 of the transverse rod bracket is connected and cooperates with the rear plate 52 of the transverse rod bracket.

[0208] In a further embodiment of the present application, the rear plate 52 of the transverse tie rod bracket is provided with a bracket rear plate connecting plate section 523 extending rearward, the bracket rear plate connecting plate section 523 is connected and cooperated with the lower wall surface of the longitudinal beam 1, the bracket rear plate connecting plate section 523 is vertically overlapped and connected to the second reinforcing plate connecting flange 5342, so that a multi-layer structure can be formed at the bracket rear plate connecting plate section 523, which helps to improve the local strength of the transverse tie rod bracket 5 and the longitudinal beam 1, and reduce the risk of cracking at the connection between the transverse tie rod bracket 5 and the longitudinal beam 1.

[0209] The bracket rear plate connecting plate segment 523 is vertically disposed opposite the bottom wall of the longitudinal beam 1, and the upper surface of the bracket rear plate connecting plate segment 523 is connected to and engaged with the bottom wall of the longitudinal beam 1. The bracket rear plate connecting plate segment 523 can overlap the second reinforcement plate connecting flange 5342 to increase the contact area between the tie rod bracket rear plate 52 and the tie rod bracket reinforcement plate 53, thereby improving the structural strength of the tie rod bracket 5 in the rear region.

[0210] Thus, in the embodiment of the present application, the front portion of the tie rod bracket 5 can be connected and matched with the first reinforcing plate connecting flange 5341 via the bracket front plate connecting plate section 513, thereby improving the structural strength of the tie rod bracket 5 in the front region; the rear portion of the tie rod bracket 5 can be connected and matched with the second reinforcing plate connecting flange 5342 via the bracket rear plate connecting plate section 523, thereby improving the structural strength of the tie rod bracket 5 in the rear region. At the same time, the contact area between the tie rod bracket 5 and the longitudinal beam 1 can be increased, thereby improving the connection strength between the tie rod bracket 5 and the longitudinal beam 1.

[0211] In some embodiments of the present application, the tie-rod support front plate inner section 511 of the tie-rod support front plate 51 is connected to the inner sidewall of the longitudinal beam 1 to increase the connection area between the tie-rod support front plate 51 and the longitudinal beam 1. The tie-rod support rear plate inner section 521 of the tie-rod support rear plate 52 is connected to the inner sidewall of the longitudinal beam 1 to increase the connection area between the tie-rod support rear plate 52 and the longitudinal beam 1. This further increases the connection area between the tie-rod support 5 and the longitudinal beam 1, improving the reliability of the connection between the tie-rod support 5 and the longitudinal beam 1.

[0212] Furthermore, the inner plate section 511 of the front plate of the transverse rod bracket is connected and matched with the inner plate section 521 of the rear plate of the transverse rod bracket, so that the front plate 51 of the transverse rod bracket and the rear plate 52 of the transverse rod bracket are connected and matched on the inner side of the longitudinal beam 1, ensuring the enclosing effect of the front plate 51 of the transverse rod bracket and the rear plate 52 of the transverse rod bracket on the inner side of the longitudinal beam 1 on the cavity structure, thereby improving the connection reliability of the front plate 51 of the transverse rod bracket and the rear plate 52 of the transverse rod bracket.

[0213] It is understood that at least a portion of the tie-rod support front plate inner section 511 and at least a portion of the tie-rod support rear plate inner section 521 correspond to and fit closely together in the inward-outward direction to ensure a connection between the tie-rod support front plate inner section 511 and the tie-rod support rear plate inner section 521. For example, an overlapping flange is formed on the tie-rod support rear plate inner section 521, which can overlap the tie-rod support front plate inner section 511, thereby increasing the connection area between the tie-rod support rear plate inner section 521 and the tie-rod support front plate inner section 511, thereby facilitating enhanced connection strength between the tie-rod support front plate 51 and the tie-rod support rear plate 52.

[0214] In some embodiments of the present application, one of the front plate inner section 511 of the transverse rod bracket and the rear plate inner section 521 of the transverse rod bracket is provided with a third opening 55, and the third opening 55 is used to fill with solder to weld the front plate inner section 511 of the transverse rod bracket and the rear plate inner section 521 of the transverse rod bracket together, thereby connecting and fixing the front plate inner section 511 of the transverse rod bracket and the rear plate inner section 521 of the transverse rod bracket by filler welding, thereby improving the local connection strength between the front plate inner section 511 of the transverse rod bracket and the rear plate 52 of the transverse rod bracket, which helps to improve the durability and fatigue performance of the transverse rod bracket 5, and the operation method is simple and the connection reliability is high.

[0215] It is understood that the third opening 55 is provided in the Y-direction opposing sections of the tie-rod support front plate inner section 511 and the tie-rod support rear plate inner section 521, and is formed on the inner section structure. That is, when a portion of the tie-rod support front plate inner section 511 overlaps the inner side of the tie-rod support rear plate inner section 521, the third opening 55 is provided on the tie-rod support front plate inner section 511; when a portion of the tie-rod support rear plate inner section 521 overlaps the inner side of the tie-rod support front plate inner section 511, the third opening 55 is provided on the tie-rod support rear plate inner section 521. This allows the third opening 55 to be fully exposed inward, leaving ample operating space on the inner side of the tie-rod support 5, facilitating welding operations.

[0216] In some embodiments of the present application, at least one of the front plate inner section 511 of the transverse tie rod bracket and the rear plate inner section 521 of the transverse tie rod bracket is provided with a mounting hole 56, and the mounting hole 56 is arranged opposite to the inner side wall of the longitudinal beam 1 and is used for the mounting structure to pass through.

[0217] The mounting structure may be constructed as a mounting sleeve, which may be used for devices adjacent to the tie rod bracket 5 in the vehicle frame assembly 100 , such as a steering gear, a steering rocker arm, and the like.

[0218] Specifically, the front plate inner section 511 of the transverse rod bracket and the rear plate inner section 521 of the transverse rod bracket can be arranged at a position opposite to the inner side wall of the longitudinal beam 1 to increase the connection and matching area between the front plate inner section 511 of the transverse rod bracket and the rear plate inner section 521 of the transverse rod bracket and the longitudinal beam 1, thereby further improving the connection strength between the transverse rod bracket 5 and the longitudinal beam 1.

[0219] It can be understood that, taking the inner plate section 521 of the rear plate of the transverse rod bracket as an example, when there is a risk of interference between the inner plate section 521 of the rear plate of the transverse rod bracket and the mounting structure arranged on the longitudinal beam 1, the mounting structure can be avoided by opening a mounting hole 56 on the inner plate section 521 of the rear plate of the transverse rod bracket, so that the mounting structure (such as the mounting sleeve) can pass through the mounting hole 56 and connect with the longitudinal beam 1.

[0220] In some embodiments of the present application, a portion of the main reinforcement plate section 531 of the tie rod bracket is disposed opposite the outer sidewall of the longitudinal beam 1 and is provided with a clearance hole 5311. The clearance hole 5311 is used to clear the mounting structure provided on the longitudinal beam 1. The mounting structure can be configured as the aforementioned mounting sleeve, which is connected to the steering gear via the mounting sleeve to connect the steering gear to the longitudinal beam 1.

[0221] It can be understood that the avoidance hole 5311 is set on the plate section area corresponding to the outer wall of the main reinforcement plate section 531 of the transverse rod bracket and the longitudinal beam 1 to prevent interference between the main reinforcement plate section 531 of the transverse rod bracket and the mounting structure. The avoidance hole 5311 exposes the matching position between the mounting structure and the longitudinal beam 1, and can avoid the need to penetrate multiple layers of boards for the installation sleeve, thereby reducing the difficulty of installing the installation sleeve.

[0222] At the same time, the area of the plate section corresponding to the outer side wall of the longitudinal beam 1 and the main reinforcement plate section 531 of the transverse tie rod bracket is relatively large, which can further improve the connection strength between the transverse tie rod bracket reinforcement plate 53 and the longitudinal beam 1.

[0223] In a further embodiment of the present application, the aperture of the avoidance hole 5311 is set larger than the outer diameter of the mounting sleeve, so that the avoidance hole 5311 can form an avoidance area of a certain size on the circumferential outside of the mounting sleeve to avoid the cooperation between the outer wall of the longitudinal beam 1 and the mounting sleeve, and the avoidance hole 5311 can also reserve space for avoiding the weld on the circumferential outside of the sleeve.

[0224] It is understandable that when welding equipment is required to perform welding operations from the outside of the transverse tie rod bracket reinforcement plate 53, the avoidance hole 5311 can also avoid the welding equipment to reserve operating space so that the welding equipment can connect and fix the installation sleeve to the longitudinal beam 1.

[0225] In some embodiments of the present application, the tie rod support main reinforcement plate section 531 is raised toward the side away from the outer sidewall of the longitudinal beam 1. This creates a clearance between the tie rod support main reinforcement plate section 531 and the outer sidewall of the longitudinal beam 1, facilitating the welding and fixing of the mounting sleeve to the longitudinal beam 1. Furthermore, this avoids the need to pass through multiple layers of board during the installation of the mounting sleeve to the longitudinal beam 1, thereby reducing the difficulty of connecting the mounting sleeve to the longitudinal beam 1. Furthermore, the raised structure further enhances the structural strength of the tie rod support main reinforcement plate section 531.

[0226] It should be noted that in the tie rod bracket 5 in the embodiment of the present application, weight-reducing holes can be set on the tie rod bracket front plate 51, the tie rod bracket rear plate 52 and the tie rod bracket reinforcement plate 53 to achieve a lightweight design. The weight-reducing holes are preferably set in areas that bear less load.

[0227] In some embodiments of the present application, a reinforcement box 57 is further provided in the frame assembly 100, the upper end of the reinforcement box 57 is connected to the bottom of the longitudinal beam 1, and the reinforcement box 57 is connected and cooperated with the inner circumferential wall of the accommodating cavity 501 enclosed by the transverse rod bracket 5 in the circumferential direction, so as to support the wall surface of the transverse rod bracket 5 through the reinforcement box 57, thereby improving the deformation resistance of the transverse rod bracket 5, and the reinforcement box 57 is located above the transverse rod mounting portion 502, so that the reinforcement box 57 is arranged at a position suitable for avoiding the transverse rod mounting portion 502.

[0228] Specifically, the reinforcement box 57 is connected and fixed to the bottom of the longitudinal beam 1 to form a support structure below the longitudinal beam 1 through the reinforcement box 57, and the reinforcement box 57 is arranged in the accommodating cavity 501 formed by the transverse rod bracket 5, so that the reinforcement box 57 can be connected and cooperated with the inner circumferential wall of the transverse rod bracket 5 in the circumferential direction, thereby supporting the transverse rod bracket 5 from the inside through the reinforcement box 57 to improve the lateral stiffness of the transverse rod bracket 5.

[0229] The accommodating cavity 501 formed by the tie-rod bracket 5 is open upward, allowing the reinforcement box 57 to extend downward from the open side of the accommodating cavity 501 relative to the tie-rod bracket 5, facilitating the placement of the reinforcement box 57 within the tie-rod bracket 5. Furthermore, the reinforcement box 57 is fixed to the lower portion of the longitudinal beam 1, acting as a support structure extending downward from the longitudinal beam 1. In other words, the reinforcement box 57 and the longitudinal beam 1 are connected and cooperated to form an integral structure. The reinforcement box 57 provides lateral support to the tie-rod bracket 5 from the inside, thereby improving the lateral rigidity of the tie-rod bracket 5.

[0230] In the related art, the tie rod bracket 5 is limited by the layout space of the front section of the frame assembly 100, and the structural strength of the front tie rod cannot be guaranteed. Problems such as cracking or deformation are prone to occur, affecting the installation reliability of the tie rod.

[0231] It can be understood that when the transverse tie rod bracket 5 is connected to the longitudinal beam 1 only through the upper part, the part of the transverse tie rod bracket 5 below the longitudinal beam 1 is equivalent to a cantilever structure, and the transverse rod needs to be installed at the cantilever structure. If the transverse rod is installed farther away from the transverse tie rod bracket 5 relative to the longitudinal beam 1 in the vertical direction, the force arm formed at the transverse tie rod bracket 5 will be longer, so that the transverse tie rod bracket 5 needs to have a higher structural strength to avoid cracking or deformation.

[0232] In this application, a reinforcement box 57 is provided below the longitudinal beam 1 to form a support structure below the longitudinal beam 1. The reinforcement box 57 provides circumferential support to the tie rod bracket 5 from the inside, filling the space formed by the tie rod bracket. This is equivalent to reducing the vertical dimension of the cantilever structure formed by the tie rod bracket 5. Therefore, the reinforcement box 57 improves the ability of the tie rod bracket 5 to withstand lateral forces from the root position where the tie rod bracket 5 is connected to the longitudinal beam 1, thereby improving the lateral rigidity of the tie rod bracket 5. At the same time, the tie rod mounting portion 502 formed by the tie rod bracket 5 is located below the reinforcement box 57, allowing the reinforcement box 57 to fully avoid the tie rod mounting portion 502 to prevent interference between the reinforcement box 57 and components such as the tie rod.

[0233] In some embodiments of the present application, the reinforcement box 57 includes a first reinforcement plate 571 and a second reinforcement plate 572. The first reinforcement plate 571 and the second reinforcement plate 572 are buckled together and enclosed to form a reinforcement cavity, so that the reinforcement box 57 has high structural strength to enhance the supporting effect of the reinforcement box 57 on the front transverse tie rod.

[0234] It will be appreciated that the reinforcement box 57 is formed by the snap-fitting connection of the first reinforcement plate 571 and the second reinforcement plate 572. The reinforcement box 57 is constructed as a hollow structure with a reinforcement cavity formed therein. This ensures the structural strength of the reinforcement box 57 while reducing its weight. Furthermore, the snap-fit connection of the two plates simplifies installation and facilitates the formation of an opening at the top of the reinforcement box 57 suitable for connection with the longitudinal beam 1.

[0235] In a further embodiment of the present application, the first reinforcing plate 571 is arranged on the inner side of the second reinforcing plate 572 in the Y direction, and the first reinforcing plate 571 is snap-fitted with the second reinforcing plate 572 on the outer side in the Y direction, so that the first reinforcing plate 571 and the second reinforcing plate 572 are snap-fitted along the Y direction to form a reinforcing box 57; the first reinforcing plate 571 is arranged on the front side of the second reinforcing plate 572 in the X direction, and the first reinforcing plate 571 is snap-fitted with the second reinforcing plate 572 on the rear side in the X direction, so that the first reinforcing plate 571 and the second reinforcing plate 572 are snap-fitted along the X direction to form a reinforcing box 57.

[0236] It is understood that when the reinforcement box 57 is formed by the first reinforcement plate 571 and the second reinforcement plate 572 being fastened together along the Y direction, the reinforcement box 57 is better able to withstand forces in the Y direction; and when the reinforcement box 57 is formed by the first reinforcement plate 571 and the second reinforcement plate 572 being fastened together along the X direction, the reinforcement box 57 is better able to withstand forces in the X direction. Therefore, the fastening arrangement of the first reinforcement plate 571 and the second reinforcement plate 572 can be designed based on the forces acting on the reinforcement box 57.

[0237] Furthermore, the tie rod bracket 5 is used to connect and cooperate with the tie rod, that is, the tie rod bracket 5 is mainly used to bear the lateral load transmitted from one side of the tie rod, so it is preferred to connect and fix the first reinforcement plate 571 and the second reinforcement plate 572 in a Y-direction snap-fit manner.

[0238] In some embodiments of the present application, a first overlapping flange 5711 is provided at the bottom of the first reinforcing plate 571, and a second overlapping flange 5721 is provided at the bottom of the second reinforcing plate 572. The first overlapping flange 5711 and the second overlapping flange 5721 are vertically overlapped and connected and fixed. Therefore, through the connection and cooperation between the first overlapping flange 5711 and the second overlapping flange 5721, the structural strength of the reinforcement box 57 at the bottom position can be further improved, and the supporting effect of the reinforcement box 57 on the transverse tie rod bracket 5 can be further improved.

[0239] Among them, the first overlapping flange 5711 and the second overlapping flange 5721 are overlapped in the vertical direction, so as to increase the connection and matching area between the first reinforcing plate 571 and the second reinforcing plate 572, and form a double-layer structure at the matching point of the first overlapping flange 5711 and the second overlapping flange 5721, thereby improving the local strength while meeting the connection and matching requirements of the first reinforcing plate 571 and the second reinforcing plate 572.

[0240] like Figure 6 As shown, in some embodiments of the present application, the tie rod bracket 5 includes: a tie rod bracket front plate 51 , a tie rod bracket rear plate 52 and a tie rod bracket reinforcement plate 53 .

[0241] Among them, the front plate 51 of the transverse rod bracket and the rear plate 52 of the transverse rod bracket are buckled in the front and rear directions, and the front plate 51 of the transverse rod bracket and the rear plate 52 of the transverse rod bracket are respectively connected to the longitudinal beam 1, and the transverse rod bracket reinforcement plate 53 is buckled and connected to the outer sides of the front plate 51 of the transverse rod bracket and the rear plate 52 of the transverse rod bracket, and the front plate 51 of the transverse rod bracket, the rear plate 52 of the transverse rod bracket and the transverse rod bracket reinforcement plate 53 are enclosed to form the above-mentioned accommodating cavity 501 to improve the structural strength of the transverse rod bracket 5 and improve the lateral stiffness of the transverse rod bracket 5.

[0242] It can be understood that the tie rod bracket 5 in the embodiment of the present application is composed of a tie rod bracket front plate 51, a tie rod bracket rear plate 52 and a tie rod bracket reinforcement plate 53. The tie rod bracket front plate 51 and the tie rod bracket rear plate 52 are buckled together in the front-to-back direction, and are further buckled together from the outside to the inside through the tie rod bracket reinforcement plate 53 to enclose and form a accommodating cavity 501, thereby improving the load-bearing performance of the tie rod bracket 5 in the front-to-back direction and the inside-outside direction, and improving the installation reliability of the tie rod at the tie rod bracket 5.

[0243] It can be further understood that by fastening the front plate 51 of the transverse rod bracket and the rear plate 52 of the transverse rod bracket in the front-to-back direction, the load-bearing performance of the transverse rod bracket 5 in the front-to-back direction can be improved, and the transverse rod bracket reinforcement plate 53 is further fastened and connected to the front plate 51 of the transverse rod bracket and the rear plate 52 of the transverse rod bracket in the Y direction to improve the load-bearing performance of the transverse rod bracket 5 in the inward and outward directions, thereby improving the stiffness of the transverse rod bracket 5 in the lateral direction, so that the durability and lateral stiffness of the transverse rod bracket 5 can meet the installation requirements of the transverse rod.

[0244] Meanwhile, the tie rod mounting portion of the tie rod bracket 5 is formed on the tie rod bracket front plate 51 and the tie rod bracket rear plate 52 , so that one end of the tie rod is connected to the longitudinal beam 1 through the tie rod mounting portion and the tie rod.

[0245] Among them, the tie rod is arranged in the lateral direction in the frame assembly 100, and the other end of the tie rod is connected to the axle. That is to say, an opening structure suitable for avoiding the inner tie rod can be formed in the area where the tie rod bracket front plate 51 and the tie rod bracket rear plate 52 form the tie rod mounting portion to prevent interference between the tie rod bracket 5 and the tie rod.

[0246] Therefore, the transverse tie rod bracket 5 in the present application is connected to the transverse tie rod bracket front plate 51 and the transverse tie rod bracket rear plate 52 from the outside to the inside along the Y direction through the transverse tie rod bracket reinforcement plate 53, so that the transverse tie rod bracket reinforcement plate 53 can fully avoid the transverse rod and further improve the stiffness of the transverse tie rod bracket 5 in the lateral direction.

[0247] In a further embodiment of the present application, the tie rod support front plate 51 includes a tie rod support front plate inner plate section 511 and a tie rod support front plate mounting plate section 512 .

[0248] The tie rod support front plate inner section 511 and the reinforcement box 57 are positioned opposite each other in the Y direction, and are fixedly connected to the inner wall surface of the reinforcement box 57 in the Y direction. The tie rod support front plate mounting plate section 512 is connected to the front side of the tie rod support front plate inner section 511 and bent outward in the Y direction to enhance the structural strength of the front portion of the tie rod support front plate 51. Simultaneously, the inner wall surface of the reinforcement box 57 in the Y direction is connected to the inner section of the tie rod support front plate 51, completing the connection and mating between the reinforcement box 57 and the front tie rod.

[0249] In some embodiments of the present application, the tie rod bracket rear plate 52 includes a tie rod bracket rear plate inner plate section 521 and a tie rod bracket rear plate mounting plate section 522 .

[0250] The tie rod bracket rear plate inner section 521 and the tie rod bracket front plate inner section 511 are arranged opposite to each other in the Y direction and connected to each other so as to connect and cooperate the tie rod bracket rear plate 52 with the tie rod bracket front.

[0251] Furthermore, the tie rod bracket rear plate mounting plate section 522 is connected to the rear side of the tie rod bracket rear plate inner plate section 521, and the tie rod bracket rear plate mounting plate section 522 is bent outward in the Y direction relative to the tie rod bracket rear plate inner plate section 521 to enhance the structural strength of the tie rod bracket rear plate 52 at the rear, and the tie rod bracket rear plate mounting plate section 522 and the tie rod bracket front plate mounting plate section 512 are arranged relative to each other in the X direction, and a tie rod mounting portion 502 is formed on the tie rod bracket rear plate mounting plate section 522 and the tie rod bracket front plate mounting plate section 512 respectively to meet the connection requirements of the tie rod at the tie rod bracket 5.

[0252] In some embodiments of the present application, the tie rod bracket reinforcement plate 53 includes: a tie rod bracket main reinforcement plate section 531 , a tie rod bracket front reinforcement plate section 532 , and a tie rod bracket rear reinforcement plate section 533 .

[0253] Among them, the main reinforcement plate section 531 of the transverse rod bracket is arranged on the outer side of the longitudinal beam 1 in the Y direction, and the main reinforcement plate section 531 of the transverse rod bracket is connected and cooperated with the longitudinal beam 1; the front reinforcement plate section 532 of the transverse rod bracket is connected to the front side of the main reinforcement plate section 531 of the transverse rod bracket, and the front reinforcement plate section 532 of the transverse rod bracket is connected and cooperated with the front plate 51 of the transverse rod bracket; the rear reinforcement plate section 533 of the transverse rod bracket is arranged opposite to the front reinforcement plate section 532 of the transverse rod bracket in the X direction, and the rear reinforcement plate section 533 of the transverse rod bracket is connected to the rear side of the main reinforcement plate section 531 of the transverse rod bracket, and is used to connect and cooperate with the rear plate 52 of the transverse rod bracket.

[0254] It can be understood that the transverse rod bracket reinforcement plate 53 includes three plate segment structures, namely the transverse rod bracket main reinforcement plate segment 531, the transverse rod bracket front reinforcement plate segment 532 and the transverse rod bracket rear reinforcement plate segment 533, and a groove structure open to the Y-direction inward is formed by the three plate segment structures, so that the crossbeam bracket reinforcement plate can be connected and matched with the transverse rod bracket front plate 51 and the transverse rod bracket rear plate 52 respectively to enclose and form the above-mentioned accommodating cavity 501.

[0255] In some embodiments of the present application, the main reinforcement plate section 531 of the transverse rod bracket is arranged opposite to the reinforcement box 57 in the Y direction, and the main reinforcement plate section 531 of the transverse rod bracket is connected and fixed to the outer wall surface of the reinforcement box 57 in the Y direction to achieve the connection and cooperation between the reinforcement box 57 and the transverse rod bracket reinforcement plate 53 in the Y direction.

[0256] In some embodiments of the present application, the front reinforcement plate section 532 of the transverse tie rod bracket is arranged opposite to the reinforcement box 57 in the X-direction, and the transverse tie rod bracket reinforcement plate section is connected and fixed to the front side wall surface of the reinforcement box 57 in the X-direction to achieve the front side connection and cooperation between the reinforcement box 57 and the transverse tie rod bracket reinforcement plate 53 in the X-direction.

[0257] In some embodiments of the present application, the rear reinforcement plate section 533 of the transverse tie rod bracket is arranged opposite to the reinforcement box 57 in the X-direction, and the transverse tie rod bracket reinforcement plate section is connected and fixed to the rear side wall of the reinforcement box 57 in the X-direction to achieve rear side connection and cooperation between the reinforcement box 57 and the transverse tie rod bracket reinforcement plate 53 in the X-direction.

[0258] It can be understood that the tie rod bracket reinforcement plate 53 can be connected and matched with the reinforcement box 57 through the above-mentioned multiple connection and matching methods at the same time, so that the tie rod bracket reinforcement plate 53 and the reinforcement box 57 are connected and matched on multiple surfaces in the circumferential direction to improve the connection strength between the reinforcement box 57 and the tie rod bracket 5, and the reinforcement box 57 plays a good supporting and fixing role on the tie rod bracket 5.

[0259] In some embodiments of the present application, the reinforcement box 57 is provided with a weight-reducing hole 573 on the wall surface in the circumferential direction, and the connection and cooperation position between the reinforcement box 57 and the transverse tie rod bracket 5 is arranged around the weight-reducing hole 573, so as to reduce the weight of the reinforcement box 57 through the weight-reducing hole 573, thereby realizing a lightweight design at the reinforcement box 57.

[0260] It is understood that the connection position of the reinforcement box 57 and the tie rod bracket 5 can avoid the weight-reducing hole 573, and the strength of the reinforcement box 57 at the weight-reducing hole 573 is improved by surrounding the weight-reducing hole 573. Specifically, when the reinforcement box 57 and the tie rod bracket 5 are welded, the weld bead can be arranged around the weight-reducing hole 573 and toward the outside.

[0261] In a further embodiment of the present application, the transverse tie rod bracket 5 is provided with a plurality of transverse tie rod bracket connection ports 503, which are arranged through the wall of the transverse tie rod bracket 5, and the transverse tie rod bracket connection ports 503 are arranged opposite to the peripheral wall of the reinforcement box 57, and at least one transverse tie rod bracket connection port 503 is arranged opposite to the weight reduction hole 573.

[0262] It is understood that the tie rod bracket connection opening 503 is arranged corresponding to the peripheral wall of the reinforcement box 57, so that the peripheral wall of the reinforcement box 57 is exposed at the tie rod bracket connection opening 503, allowing an operator to weld the tie rod bracket 5 and the reinforcement box 57 together at the tie rod bracket connection opening 503 from the outside of the tie rod bracket 5. The weld bead formed by the welding can be arranged along the inner peripheral edge of the tie rod bracket connection opening 503 to improve the connection reliability between the tie rod bracket 5 and the reinforcement box 57.

[0263] It should be noted that the transverse rod bracket connection port 503 can be set on at least one of the transverse rod bracket front plate 51, the transverse rod bracket rear plate 52 and the transverse rod bracket reinforcement plate 53, and the specific layout position of the transverse rod bracket connection port 503 can be designed according to the position of the reinforcement box 57 in the accommodating cavity 501.

[0264] Furthermore, when the transverse rod bracket connection port 503 and the weight-reducing hole 573 are arranged relative to each other, the opening size of the weight-reducing hole 573 is smaller than the opening size of the transverse rod bracket connection port 503, and in the overlapping direction, the projection of the weight-reducing hole 573 falls within the projection range of the transverse rod bracket connection port 503, so that the weld formed by welding can be arranged circumferentially around the weight-reducing hole 573 to improve the connection reliability between the reinforcement box 57 and the transverse rod bracket.

[0265] According to the frame assembly of the embodiment of the present application, the frame assembly 100 also includes a second crossbeam 22, which is connected between the two longitudinal beams 1. The connection and cooperation position between the second crossbeam 22 and the longitudinal beam 1 is located on the front side of the transverse tie rod bracket 5, and the second crossbeam 22 is arranged on the rear side of the first crossbeam assembly 21 to improve the connection strength between the two longitudinal beams 1 through the second crossbeam 22.

[0266] The connection position between the second cross beam 22 and the longitudinal beam 1 is located at the cross tie rod bracket 5 and in front of the front cross rail bracket 5 , so that the lateral stiffness at the cross tie rod bracket 5 can be improved by the second cross beam 22 .

[0267] In some embodiments of the present application, a reinforcing plate structure may be provided at the connection between the second cross beam 22 and the longitudinal beam 1 to enhance the connection strength between the second cross beam 22 and the longitudinal beam 1 through the reinforcing plate structure.

[0268] The vehicle frame assembly 100 according to the embodiment of the present application further includes a first crossbeam assembly 21 , which is connected to the longitudinal beam 1 in the vehicle frame assembly.

[0269] The longitudinal beam 1 as a whole can extend in the vehicle X-direction (or the front-to-back direction or the longitudinal direction), and the first cross-beam assembly 21 as a whole can extend in the vehicle Y-direction (or the left-to-right direction or the transverse direction). The first cross-beam assembly 21 can be connected to the front end of the longitudinal beam 1. For example, the first cross-beam assembly 21 can be riveted, welded, or bolted to the front end of the longitudinal beam 1. The front side of the portion of the first cross-beam assembly 21 used for connection to the longitudinal beam 1 can be flush with the front end face of the longitudinal beam 1, or the front side of the portion of the first cross-beam assembly 21 used for connection to the longitudinal beam 1 can be located behind the front end face of the longitudinal beam 1, that is, it can be disposed only adjacent to the front end face of the longitudinal beam 1.

[0270] The first crossbeam assembly 21 includes a first crossbeam body 211, two sets of first crossbeam mounting brackets 212, and a front trailer hook 213. The first crossbeam body 211 is arranged transversely and positioned below the longitudinal beam 1. The two sets of first crossbeam mounting brackets 212 are connected to both ends of the first crossbeam body 211 and are used to connect with the longitudinal beam 1. The first crossbeam mounting brackets 212 can also be used to mount the stabilizer bar 30. The front trailer hook 213 is located in front of the first crossbeam mounting bracket 212 to form a front traction structure.

[0271] It should be noted that the stabilizer bar 30 is positioned relatively low, typically below the longitudinal beam 1. The first crossbeam body 211 is arranged transversely and below the longitudinal beam 1. By mounting the stabilizer bar 30 on the first crossbeam mounting bracket 212, the layout of the stabilizer bar 30 and the first crossbeam assembly 21 is increased in compactness, reducing the space occupied by the stabilizer bar 30 and the first crossbeam assembly 21. The stabilizer bar 30 is directly mounted on the first crossbeam assembly 21, which has a high structural strength. This helps increase the installation stability of the stabilizer bar 30 and reduces the potential spatial positional deviation of the stabilizer bar 30.

[0272] For example, the stabilizer bar 30 may be mounted on a rear side surface of the first cross-beam mounting bracket 212 ; or, the stabilizer bar 30 may be mounted on a bottom surface of the first cross-beam mounting bracket 212 .

[0273] Two sets of first crossbeam mounting brackets 212 are connected to each end of the first crossbeam body 211 and are used to connect and cooperate with the longitudinal beam 1. For example, the first crossbeam mounting brackets 212 can be welded to the first crossbeam body 211; alternatively, the first crossbeam mounting brackets 212 can be threaded, bolted, or riveted to the first crossbeam body 211; alternatively, portions of the first crossbeam mounting brackets 212 can be integrally formed with portions of the first crossbeam body 211. The first crossbeam mounting brackets 212 are connected and cooperate with the longitudinal beam 1 to ensure a stable connection between the first crossbeam mounting brackets 212 and the longitudinal beam 1.

[0274] The front trailer hook 213 is provided on the first crossbeam mounting bracket 212 and forms a front traction structure in front of the first crossbeam mounting bracket 212. The front traction structure is used to provide a force point during vehicle towing, rescue or transportation and needs to withstand longitudinal tension.

[0275] The front trailer hook 213 is mounted on the first cross-beam mounting bracket 212, further improving the integration of the first cross-beam assembly 21 and further reducing the space occupied by the first cross-beam assembly 21. Furthermore, the first cross-beam mounting bracket 212 has a mounting surface perpendicular to the front trailer hook 213. This simplifies the securing of the front trailer hook 213, improves the connection strength between the front trailer hook 213 and the first cross-beam mounting bracket 212, and makes it less likely for the front trailer hook 213 and the first cross-beam mounting bracket 212 to separate.

[0276] According to the first crossbeam assembly 21 of the embodiment of the present application, a first crossbeam mounting bracket 212 is provided, and the first crossbeam mounting bracket 212 is used to connect with the longitudinal beam 1, and can also provide an installation site for the stabilizer bar 30 and the front trailer hook 213. Therefore, the structural arrangement of the first crossbeam assembly 21 and the stabilizer bar 30 of the embodiment of the present application is more compact, and occupies less space, which is beneficial to increase the available space of the vehicle. In addition, there is no need to set up an additional mounting frame or an additional mounting portion on the longitudinal beam 1 to install the stabilizer bar 30, which is beneficial to reducing the complexity of the process.

[0277] In some embodiments of the present application, the first crossbeam mounting bracket 212 includes a first crossbeam front mounting plate 2121 and a first crossbeam rear mounting plate 2122. The first crossbeam front mounting plate 2121 and the first crossbeam rear mounting plate 2122 are buckled together in the front-to-back direction to form a longitudinal beam mounting groove 2123 that is open to the upper side and is through-set in the front-to-back direction. Part of the longitudinal beam 1 is placed in the longitudinal beam mounting groove 2123 and is respectively connected to the first crossbeam front mounting plate 2121 and the first crossbeam rear mounting plate 2122.

[0278] The first crossbeam front mounting plate 2121 and the first crossbeam rear mounting plate 2122 are fastened together in the front-to-back direction. For example, the rear side of the first crossbeam front mounting plate 2121 is open, and the front side of the first crossbeam rear mounting plate 2122 is open, with the rear opening edge of the first crossbeam front mounting plate 2121 and the front opening edge of the first crossbeam rear mounting plate 2122 facing and connected; or, the rear opening edge of the first crossbeam front mounting plate 2121 is located inside the front opening edge of the first crossbeam rear mounting plate 2122, and the two are connected to each other; or, the rear opening edge of the first crossbeam front mounting plate 2121 is located outside the front opening edge of the first crossbeam rear mounting plate 2122, and the two are connected to each other. For example, the rear opening edge of the first crossbeam front mounting plate 2121 and the front opening edge of the first crossbeam rear mounting plate 2122 are welded to each other.

[0279] For example, the edge of the longitudinal beam mounting groove 2123 can be connected to the longitudinal beam 1 by welding.

[0280] In the above technical solution, the first beam front mounting plate 2121 and the first beam rear mounting plate 2122 have good structural symmetry, can jointly play a role in force transmission, and have high structural strength; at the same time, the processing difficulty is also low and the machinability is good.

[0281] The first crossbeam front mounting plate 2121 and the first crossbeam rear mounting plate 2122 form a longitudinal beam mounting groove 2123. Part of the longitudinal beam 1 is placed in the longitudinal beam mounting groove 2123 and is respectively connected to the first crossbeam front mounting plate 2121 and the first crossbeam rear mounting plate 2122. In this way, the connection area between the first crossbeam assembly 21 and the longitudinal beam 1 is larger, and the connection strength and stability are better.

[0282] For example, the first crossbeam body 211 may include a second rod 2115 arranged in a vertically opposed arrangement. The first rod 2114 is open at the bottom and has both left and right ends extending through it. The second rod 2115 is open at the top and has both left and right ends extending through it. The first rod 2114 and the second rod 2115 are interlocked and connected to each other, and the first and second portions are connected, for example, by welding. The first crossbeam mounting bracket 212 includes a first crossbeam front mounting plate 2121 and a first crossbeam rear mounting plate 2122, which are interlocked and arranged in a front-to-back direction.

[0283] Therefore, the first beam body 211 and the first beam mounting bracket 212 are easy to process and have high structural strength, and can better resist impact.

[0284] In some embodiments of the present application, the first beam front mounting plate 2121 and the first beam rear mounting plate 2122 are combined to form a first beam mounting groove 2124 that is open to the inside, and the first beam body 211 is plugged into the first beam mounting groove 2124 and is respectively connected to the first beam front mounting plate 2121 and the first beam rear mounting plate 2122.

[0285] Specifically, the first beam body 211 and the first beam front mounting plate 2121 and the first beam rear mounting plate 2122 can be welded together to form a weld bead. The weld bead is formed at the opening of the first beam mounting groove 2124 and is arranged around the first beam body 211. In this way, the connection area between the first beam body 211 and the first beam front mounting plate 2121 and the first beam rear mounting plate 2122 is large, the connection reliability is high, and the first beam body 211 and the first beam front mounting plate 2121 and the first beam rear mounting plate 2122 are not easy to separate or dislocate.

[0286] In the above embodiment, the first beam body 211 is plugged into the first beam mounting groove 2124 and is respectively connected to the first beam front mounting plate 2121 and the first beam rear mounting plate 2122. In this way, the contact area can be increased by plugging in the overlapping area, making the stress distribution more uniform, reducing local stress concentration, and improving the bending stiffness; the plug-in fit can also avoid overall thickening and reduce weight through precise overlap length design.

[0287] In some embodiments of the present application, the first crossbeam body 211 includes a first crossbeam connecting beam section 2111 and a first crossbeam main beam section 2112. The first crossbeam connecting beam section 2111 can be plugged into and connected to the first crossbeam mounting groove 2124; the first crossbeam main beam section 2112 is connected between the two sections of the first crossbeam connecting beam sections 2111, and is protruded forward relative to the first crossbeam connecting beam section 2111 to form a stabilizer bar avoidance area 2113 on the rear side of the first crossbeam main beam section 2112.

[0288] In the above technical solution, a stabilizer bar avoidance area 2113 is formed on the rear side of the first crossbeam main beam section 2112, so that the first crossbeam main body 211 will not interfere with the stabilizer bar 30. At the same time, the arrangement of the stabilizer bar 30 and the first crossbeam assembly 21 is more compact, and the occupied space is smaller, which is conducive to expanding the available space of the vehicle. At the same time, the selection of the stabilizer bar 30 is also more free, and it can adapt to the installation arrangement of various types of stabilizer bars 30.

[0289] Furthermore, a stabilizer bar avoidance zone 2113 is formed behind the first cross-beam main section 2112. In other words, the stabilizer bar 30 is positioned behind the first cross-beam main section 2112, allowing the first cross-beam main section 2112 to provide protection for the stabilizer bar 301. In the fore-aft direction, the opposing portion of the stabilizer bar 30 and the first cross-beam main section 2112 at least partially overlaps with the projection of the first cross-beam main section 2112. This enhances the protective effect of the first cross-beam body 211 on the stabilizer bar 30, further reducing the likelihood of damage to the stabilizer bar 30 in a head-on collision.

[0290] In other embodiments, the first crossbeam main beam section 2112 is connected between two sections of the first crossbeam connecting beam sections 2111, and is protruded upward relative to the first crossbeam connecting beam sections 2111 to form a stabilizer bar avoidance area 2113 on the lower side of the first crossbeam main beam section 2112.

[0291] In the above technical solution, a stabilizer bar avoidance area 2113 is formed on the lower side of the first crossbeam main beam section 2112, so that the first crossbeam main body 211 will not interfere with the stabilizer bar 30. At the same time, the arrangement of the stabilizer bar 30 and the first crossbeam assembly 21 is more compact, and the space occupied is smaller, which is conducive to expanding the available space of the vehicle. At the same time, the selection of the stabilizer bar 30 is also more free, and it can adapt to the installation arrangement of various types of stabilizer bars 30.

[0292] In other embodiments, the first crossbeam main beam section 2112 is connected between two sections of the first crossbeam connecting beam sections 2111, and is protruded downward relative to the first crossbeam connecting beam sections 2111 to form a stabilizer bar avoidance area 2113 on the upper side of the first crossbeam main beam section 2112.

[0293] In the above technical solution, a stabilizer bar avoidance area 2113 is formed on the upper side of the first crossbeam main beam section 2112, so that the first crossbeam main body 211 will not interfere with the stabilizer bar 30. At the same time, the arrangement of the stabilizer bar 30 and the first crossbeam assembly 21 is more compact, and the occupied space is smaller, which is conducive to expanding the available space of the vehicle. At the same time, the selection of the stabilizer bar 30 is also more free, and it can adapt to the installation arrangement of various types of stabilizer bars 30.

[0294] In some embodiments of the present application, a stabilizer bar mounting boss 21222 is formed on the rear wall surface of the first crossbeam rear mounting plate 2122, and the stabilizer bar mounting boss 21222 is protruded toward the rear side to form avoidance areas 21223 on the inner and outer sides of the stabilizer bar mounting boss 21222 in the Y direction, respectively, and the stabilizer bar mounting boss 21222 is used to install the stabilizer bar 30.

[0295] It should be noted that the stabilizer bar 30 is typically equipped with clamps located on either side of the rubber bushing to secure the stabilizer bar 30 and limit axial movement. This reduces the possibility of lateral displacement of the stabilizer bar 30 due to vibration or torsional forces during vehicle operation, ensuring that it remains in the designed position. For example, when the stabilizer bar 30 is subjected to torsion during cornering, the clamps prevent it from sliding left or right, ensuring that the suspension on both sides is stressed synchronously.

[0296] In the above technical solution, by setting the stabilizer bar mounting boss 21222, on the one hand, the rear wall surface of the rear mounting plate 2122 of the first crossbeam can be strengthened, which is beneficial to improving the installation stability of the stabilizer bar 30; on the other hand, avoidance areas 21223 can be formed on the inner and outer sides of the stabilizer bar mounting boss 21222 in the Y direction respectively to avoid the clamp on the stabilizer bar 30 and avoid interference between the clamp and the first crossbeam assembly 21.

[0297] In some embodiments of the present application, the front mounting plate 2121 of the first crossbeam is provided with a front mounting plate connecting hole 21211, and the rear mounting plate 2122 of the first crossbeam is provided with a rear mounting plate connecting hole 21221. The front mounting plate connecting hole 21211 and the rear mounting plate connecting hole 21221 are arranged opposite to each other and are used for the front trailer hook 213 to pass through, and the part of the front trailer hook 213 that passes rearward from the rear mounting plate connecting hole 21221 is connected to the rear mounting plate 2122 of the first crossbeam.

[0298] Exemplarily, the front trailer hook 213 and the first cross beam front mounting plate 2121 are welded together to form a weld bead, which is arranged around the front mounting plate connecting hole 21211; the front trailer hook 213 and the first cross beam rear mounting plate 2122 are welded together to form a weld bead, which is arranged around the rear mounting plate connecting hole 21221.

[0299] In the above technical solution, the front trailer hook 213 is connected and fixed to the rear mounting plate 2122 of the first crossbeam at the rear side. The front trailer hook 213 is located in front of the front mounting plate 2121 of the first crossbeam to form a front traction structure. The connection strength between the front trailer hook 213 and the first crossbeam mounting bracket 212 is high, and the front trailer hook 213 is not easy to separate from the first crossbeam mounting bracket 212.

[0300] In some embodiments of the present application, the first crossbeam rear mounting plate 2122 is provided with two rear mounting plate connecting holes 21221 , and the two rear mounting plate connecting holes 21221 are respectively provided on the inner and outer sides of the stabilizer bar mounting boss 21222 in the Y direction.

[0301] In the above technical solution, the setting of the stabilizer bar mounting boss 21222 can improve the structural strength of the first crossbeam rear mounting plate 2122 at the rear mounting plate connecting hole 21221, which is beneficial to making the rear mounting plate connecting hole 21221 less likely to be torn and damaged.

[0302] In some embodiments of the present application, the first crossbeam assembly 21 also includes a front trailer hook mounting plate 214, which is connected to the first crossbeam front mounting plate 2121, and the front trailer hook 213 is sequentially arranged through the front trailer hook mounting plate 214, the first crossbeam front mounting plate 2121 and the first crossbeam rear mounting plate 2122 from front to rear, and the front trailer hook 213 is connected and cooperated with the front trailer hook mounting plate 214.

[0303] For example, the front trailer hook mounting plate 214 and the first crossbeam front mounting plate 2121 can be welded together. For example, the first crossbeam front mounting plate 2121 is formed with a positioning groove, the depth of which is less than the thickness of the front trailer hook mounting plate 214, so that the front trailer hook mounting plate 214 can be quickly installed in the target position. The front trailer hook mounting plate 214 is also formed with a through hole, and the through hole, the front mounting plate connecting hole 21211, and the rear mounting plate connecting hole 21221 are arranged opposite each other. The front trailer hook 213 can be welded to the front trailer hook mounting plate 214 to form a weld bead, which extends along the circumference of the through hole.

[0304] The front trailer hook 213 is subjected to huge pulling force during vehicle rescue, towing or transportation. The front trailer hook mounting plate 214 is provided to locally reinforce the first crossbeam front mounting plate 2121 to ensure structural strength, safety and durability, so that the front trailer hook 213 is not easily separated from the first crossbeam mounting bracket 212.

[0305] In some embodiments of the present application, the front trailer hook mounting plate 214 is arranged in a close fit with the first crossbeam front mounting plate 2121, and the front trailer hook mounting plate 214 is provided with a fourth opening 2141, which is used to fill solder to weld the front trailer hook mounting plate 214 and the first crossbeam front mounting plate 2121 together.

[0306] For example, the fourth opening 2141 may be located in the middle of the two front mounting plate connection holes 21211 to increase the connection stability between the front trailer hook mounting plate 214 and the first crossbeam front mounting plate 2121 .

[0307] In the above technical solution, the front trailer hook mounting plate 214 is fitted with the first crossbeam front mounting plate 2121 to increase the contact area, which is equivalent to increasing the local strength by increasing the thickness. The fourth opening 2141 is provided to increase the connection area between the front trailer hook 213 and the first crossbeam front mounting plate 2121, so that the first crossbeam front mounting plate 2121 and the front trailer hook mounting plate 214 can better bear the tensile stress together.

[0308] According to the embodiment of the present application, the frame assembly includes a longitudinal beam 1 and a first cross beam assembly 21 . The stabilizer bar 30 is installed on the first cross beam assembly 21 and is arranged below the longitudinal beam 1 and at the rear side of the first cross beam assembly 21 .

[0309] Specifically, the longitudinal beam 1 as a whole can extend along the vehicle's X-direction (or the front-to-back direction or the longitudinal direction), and the first cross-beam assembly 21 as a whole can extend along the vehicle's Y-direction (or the left-to-right direction or the transverse direction). The first cross-beam assembly 21 can be connected to the front end of the longitudinal beam 1. For example, the first cross-beam assembly 21 can be riveted, welded, or bolted to the front end of the longitudinal beam 1. The front side of the portion of the first cross-beam assembly 21 used for connection to the longitudinal beam 1 can be flush with the front end face of the longitudinal beam 1, or the front side of the portion of the first cross-beam assembly 21 used for connection to the longitudinal beam 1 can be located behind the front end face of the longitudinal beam 1, that is, disposed only adjacent to the front end face of the longitudinal beam 1.

[0310] The stabilizer bar 30 is mounted on the first cross-member assembly 21, located below the longitudinal beam 1 and behind the first cross-member assembly 21. In other words, the first cross-member assembly 21 is located in front of the stabilizer bar 30, thereby providing protection for the stabilizer bar 30. When the vehicle is subjected to a head-on collision, the first cross-member assembly 21 primarily resists and absorbs the impact energy, thereby reducing the likelihood of damage to the stabilizer bar 30.

[0311] Since the first crossbeam body 211 is arranged below the longitudinal beam 1 and the stabilizer bar 30 needs to be protected, the dimensions of the first crossbeam mounting bracket 212 in the up and down directions need to be set larger. As a result, a mounting position for installing the stabilizer bar 30 can be reserved on the first crossbeam mounting bracket 212, so that there is no need to set up an additional mounting frame or an additional mounting portion on the longitudinal beam 1 to install the stabilizer bar 30, which is beneficial to reducing the complexity of the process, and can also increase the compactness of the layout of the stabilizer bar 30 and the first crossbeam assembly 21, reduce space occupancy, and increase the available space of the vehicle.

[0312] At the same time, the larger size of the first crossbeam mounting bracket 212 is also conducive to increasing the connection area between the first crossbeam assembly 21 and the longitudinal beam 1, thereby increasing the connection stability between the longitudinal beam 1 and the first crossbeam assembly 21.

[0313] According to the frame assembly of the embodiment of the present application, the frame assembly 100 also includes a second crossbeam 22, which is connected between the two longitudinal beams 1. The connection and cooperation position between the second crossbeam 22 and the longitudinal beam 1 is located on the front side of the transverse tie rod bracket 5, and the second crossbeam 22 is arranged on the rear side of the first crossbeam assembly 21 to improve the connection strength between the two longitudinal beams 1 through the second crossbeam 22.

[0314] The connection position between the second cross beam 22 and the longitudinal beam 1 is located at the cross tie rod bracket 5 and in front of the front cross rail bracket 5 , so that the lateral stiffness at the cross tie rod bracket 5 can be improved by the second cross beam 22 .

[0315] In some embodiments of the present application, a reinforcing plate structure may be provided at the connection between the second cross beam 22 and the longitudinal beam 1 to enhance the connection strength between the second cross beam 22 and the longitudinal beam 1 through the reinforcing plate structure.

[0316] In some embodiments of the present application, the longitudinal beam 1 includes: a longitudinal beam front section 11, a longitudinal beam middle section 12 and a longitudinal beam rear section 13. The longitudinal beam middle section 12 is connected to the front side of the longitudinal beam rear section 13. The longitudinal beam front section 11 is connected to the front side of the longitudinal beam middle section 12 and is raised upward toward the front side relative to the longitudinal beam middle section 12. The long longitudinal tie rod mounting bracket 3 and the short longitudinal tie rod mounting bracket 4 are arranged below the longitudinal beam front section 11 and are located in front of the connection position between the longitudinal beam middle section 12 and the longitudinal beam front section 11.

[0317] It can be understood that by constructing the front section 11 of the longitudinal beam into a structure that bulges upward relative to the middle section 12 of the longitudinal beam, sufficient layout space can be reserved on the lower side of the front section 11 of the longitudinal beam to arrange the long longitudinal tie rod mounting bracket 3 and the short longitudinal tie rod mounting bracket 4 in the lower area of the front section 11 of the longitudinal beam, and the long longitudinal tie rod mounting bracket 3 and the short longitudinal tie rod mounting bracket 4 can be arranged near the third cross beam 23.

[0318] In a further embodiment of the present application, the frame assembly 100 also includes: a first crossbeam assembly 21, the first crossbeam assembly 21 is connected between the two longitudinal beam front sections 11; a second crossbeam 22, the second crossbeam 22 is connected between the two longitudinal beam front sections 21, and is located on the front side between the transverse tie rods.

[0319] In the vehicle frame assembly 100 , the first crossbeam assembly 21 , the second crossbeam 22 , the third crossbeam 23 and the fourth crossbeam 24 are sequentially arranged from front to back, thereby improving the lateral stiffness of the vehicle frame body through the multiple crossbeam structures.

[0320] In summary, the frame assembly according to the embodiment of the present application has at least the following advantages:

[0321] (1) A five-link suspension mechanism is formed between the axle 20 and the frame body 10 through the connecting rod assembly 6 to improve the vehicle's passability, escape performance, and off-road performance;

[0322] (2) by providing a second cross member 22 in the frame body 10, the lateral rigidity at the tie rod bracket 5 is improved by the second cross member 22;

[0323] (3) The third crossbeam 23 is connected and matched with the long longitudinal tie rod mounting bracket 3 to improve the lateral stiffness of the long longitudinal tie rod, and the crossbeam connecting bracket 31 can cooperate with the long longitudinal bracket 32 to help improve the overall strength of the long longitudinal tie rod mounting bracket 3;

[0324] (4) The short longitudinal tie rod mounting bracket 4 is connected and matched with the long longitudinal tie rod mounting bracket 3 to form a whole, which helps to further improve the connection reliability of the connecting rod assembly 6 on the side of the frame body 10, and can be connected and fixed by welding, reducing the welding process required;

[0325] (5) The tie rod bracket front plate 51 and the tie rod bracket rear plate 52 in the tie rod bracket 5 are fastened together in the front-to-back direction and then connected to the tie rod bracket reinforcement plate 53 by a left-to-right fastening method, thereby improving the lateral rigidity of the tie rod bracket 5;

[0326] (6) The front section of the frame body 10 is provided with a first crossbeam assembly 21, a second crossbeam 22, a third crossbeam 23 and a fourth crossbeam 24. The lateral stiffness of the frame body 10 is improved by using multiple crossbeams, and the torsional stiffness and strength of the frame body 10 are improved, so that the entire vehicle can cope with a variety of difficult off-road conditions.

[0327] According to the vehicle of the embodiment of the present application, the vehicle includes the above-mentioned frame assembly.

[0328] The advantages of the vehicle over the prior art are the same as those of the frame assembly described above and will not be repeated here.

[0329] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A vehicle frame assembly, characterized in that: include: A vehicle frame body (10), the vehicle frame body (10) comprising two longitudinal beams (1) spaced apart in a width direction and a plurality of transverse beams connected between the two longitudinal beams (1); an axle (20), the axle (20) being connected to the vehicle frame body (10); Two groups of long longitudinal tie rod mounting brackets (3), each group of the long longitudinal tie rod mounting brackets (3) is arranged on the longitudinal beam (1), and one of the cross beams is connected between the two groups of the long longitudinal tie rod mounting brackets (3); Two groups of short longitudinal tie rod mounting brackets (4), each group of the short longitudinal tie rod mounting brackets (4) is arranged on the longitudinal beam (1); A transverse tie rod bracket, the transverse tie rod bracket being arranged on one of the longitudinal beams (1); A connecting rod assembly (6), the connecting rod assembly (6) includes a transverse tie rod, two long longitudinal tie rods and two short longitudinal tie rods, each of the long longitudinal tie rods is connected to the vehicle axle (20) and a group of the long longitudinal tie rod mounting brackets (3), each of the short longitudinal tie rods is connected to the vehicle axle (20) and a group of the short longitudinal tie rod mounting brackets (4), and the transverse tie rods are arranged transversely and connected to the transverse tie rod brackets and the vehicle axle (20).

2. The vehicle frame assembly according to claim 1, characterized in that: The crossbeam includes a third crossbeam (23), and the long longitudinal tie rod mounting bracket (3) includes: A crossbeam connecting bracket (31), the crossbeam connecting bracket (31) is connected below the longitudinal beam (1) and is used to connect and cooperate with the third crossbeam (23), the crossbeam connecting bracket (31) comprising a crossbeam connecting inner plate (311) and a crossbeam connecting outer plate (312) arranged to be buckled in the Y direction; A long longitudinal bracket (32), the long longitudinal bracket (32) is connected to the cross beam connecting outer plate (312), and is enclosed with the cross beam connecting outer plate (312) to form a long longitudinal pull rod installation cavity, and one end of the long longitudinal pull rod is connected to the long longitudinal bracket (32) and the cross beam connecting outer plate (312).

3. The vehicle frame assembly according to claim 2, characterized in that: The short longitudinal tie rod mounting bracket (4) is arranged on the front side of the long longitudinal bracket (32) and the crossbeam connecting bracket (31), and comprises: A short longitudinal bracket inner plate (41), the short longitudinal bracket inner plate (41) being connected to the crossbeam connecting inner plate (311) and the longitudinal beam (1) respectively; A short longitudinal bracket outer plate (42), the short longitudinal bracket outer plate (42) is respectively connected to the longitudinal beam (1) bracket and the longitudinal beam (1), and the short longitudinal bracket outer plate (42) and the short longitudinal bracket inner plate (41) are buckled together along the Y direction and enclosed to form the short longitudinal pull rod installation cavity.

4. The vehicle frame assembly according to claim 2, characterized in that: The outer side of the crossbeam connecting bracket (31) is formed with a long longitudinal pull rod inner connection point, and the long longitudinal bracket (32) is formed with a long longitudinal pull rod outer connection point; In the projection in the Y direction, the projection of the inner connection point of the long longitudinal pull rod and the projection of the outer connection point of the long longitudinal pull rod fall within the projection range of the third crossbeam (23).

5. The vehicle frame assembly according to claim 4, characterized in that: The beam connection bracket (31) is provided with a third beam connection portion, the third beam connection portion comprising a first mounting hole and a second mounting hole, the first mounting hole and the second mounting hole both being arranged to pass through the beam connection bracket (31) in the X direction; The frame assembly further comprises a plurality of connecting components, each of which can be fitted with the first mounting hole or the second mounting hole and fixedly connect the third crossbeam (23) to the crossbeam connecting bracket (31), and the first mounting hole is arranged below the second mounting hole, and in the Y direction, the first mounting hole is located inside the second mounting hole.

6. The vehicle frame assembly according to claim 5, characterized in that: In the vertical direction, the outer connection point (322) of the long longitudinal pull rod is located in the middle of the long longitudinal bracket (32), and the long longitudinal bracket (32) is connected and matched with the crossbeam connecting bracket (31) and the longitudinal beam (1); Alternatively, in the vertical direction, the outer connection point (322) of the long longitudinal pull rod is located at the lower position of the long longitudinal bracket (32), and the long longitudinal bracket (32) is connected to the crossbeam connecting bracket (31).

7. The vehicle frame assembly according to claim 1, characterized in that: The crossbeam includes a third crossbeam (23), and the long longitudinal tie rod mounting bracket (3) includes: a crossbeam connecting bracket (31), the crossbeam connecting bracket (31) being connected below the longitudinal beam (1) and forming a cavity structure, and a portion of the third crossbeam (23) being capable of extending into the cavity structure and being connected to the crossbeam connecting bracket (31); A reinforcement component, the reinforcement component is arranged in the beam mounting cavity, and a portion of the reinforcement component is passed through the beam connecting bracket (31) to form a connection point inside the long pull rod; A long longitudinal bracket (32), the long longitudinal bracket (32) is connected to the outside of the crossbeam connecting bracket (31), and is connected and matched with the longitudinal beam (1), and the long longitudinal bracket (32) is formed with a long longitudinal pull rod outer connection point arranged opposite to the long longitudinal pull rod inner connection point in the Y direction.

8. The vehicle frame assembly according to claim 7, characterized in that: The reinforcement assembly comprises: a connection point reinforcement plate (34), the connection point reinforcement plate (34) being disposed in the crossbeam mounting cavity and connected to the crossbeam connection bracket (31); A support tube (35), wherein the support tube (35) is installed on the connection point reinforcement plate (34) and the crossbeam connection bracket (31), and a portion of the support tube (35) passes through the crossbeam connection bracket (31) from the crossbeam installation cavity to the outside, and forms a long longitudinal pull rod inner connection point (313) on the outside of the crossbeam connection bracket (31).

9. The vehicle frame assembly according to claim 1, characterized in that: The tie rod bracket includes: A front plate of a transverse tie rod support and a rear plate of the transverse tie rod support, wherein the front plate of the transverse tie rod support and the rear plate of the transverse tie rod support are buckled and arranged along the front-back direction and are respectively connected to the longitudinal beam (1); A transverse tie rod support reinforcement plate is buckled and connected to the transverse tie rod support front plate and the transverse tie rod support rear plate, and is connected and matched with the longitudinal beam (1).

10. The vehicle frame assembly according to claim 9, characterized in that: The tie rod bracket reinforcement plate includes: A main reinforcement plate section of a transverse tie rod bracket, the main reinforcement plate section of the transverse tie rod bracket being arranged on the outside of the longitudinal beam (1) in the Y direction and connected to the longitudinal beam (1); A front reinforcement plate section of a transverse tie rod bracket, the front reinforcement plate section of the transverse tie rod bracket being connected to the front side of the main reinforcement plate section of the transverse tie rod bracket and being connected to the front plate of the transverse tie rod bracket; The rear reinforcement plate section of the transverse tie rod bracket is arranged opposite to the front reinforcement plate section of the transverse tie rod bracket in the X direction, and is connected to the rear side of the main reinforcement plate section of the transverse tie rod bracket and is connected to the rear plate of the transverse tie rod bracket.

11. The vehicle frame assembly according to claim 1, characterized in that: The tie rod bracket is formed with a receiving cavity located below the longitudinal beam (1), and the tie rod bracket is formed with a tie rod mounting portion, and the tie rod mounting portion is used for connecting and cooperating with the tie rod; The tie rod bracket further includes a reinforcement box (57), the upper end of the reinforcement box (57) is connected to the bottom of the longitudinal beam (1), the reinforcement box (57) is circumferentially connected and matched with the tie rod bracket to enclose and define the inner peripheral wall of the accommodating cavity, and the reinforcement box (57) is located above the tie rod mounting portion.

12. The vehicle frame assembly according to claim 11, wherein: The reinforcement box (57) is provided with weight-reducing holes on the wall surface in the circumferential direction; The tie rod bracket is provided with a plurality of tie rod bracket connection ports, the tie rod bracket connection ports are arranged through the wall surface of the tie rod bracket and are arranged opposite to the peripheral wall of the reinforcement box (57), and at least one of the tie rod bracket connection ports is arranged opposite to the weight reduction hole.

13. The vehicle frame assembly according to claim 1, wherein: The frame assembly further comprises a first crossbeam assembly (21), wherein the first crossbeam assembly (21) comprises: a first crossbeam body (211), the first crossbeam body (211) being arranged below the longitudinal beam (1) and comprising: a first crossbeam connecting beam section (2111) and a first crossbeam main beam section (2112), the first crossbeam main beam section being connected between two sections of the first crossbeam connecting beam sections and being arranged to protrude forward relative to the first crossbeam connecting section, so as to form a stabilizer bar avoidance zone at the rear side of the first crossbeam main beam section; Two groups of first crossbeam mounting brackets (212) are respectively connected to two sections of the first crossbeam connecting beam sections (2111) at both ends of the first crossbeam body (211), and are used for connecting and cooperating with the longitudinal beam (1), and the first crossbeam mounting brackets (212) can be used for installing a stabilizing bar (30).

14. The vehicle frame assembly according to any one of claims 1 to 13, characterized in that: The axle (20) comprises: A front axle, the front axle being arranged in a front region of the vehicle frame body (10) and being connected to the vehicle frame body (10) via a set of the connecting rod assemblies (6); And / or, a rear axle, the rear axle is arranged in the rear section area of the frame body (10) and is connected to the frame body (10) through a set of connecting rod assemblies (6).

15. A vehicle, characterized in that: The vehicle frame assembly comprises the vehicle frame assembly according to any one of claims 1 to 14.

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