Auxiliary frame assembly and vehicle

Abstract

The utility model discloses an auxiliary frame assembly and a vehicle, and relates to the technical field of vehicles. The second cross beam is parallel to the first cross beam; the two longitudinal beam assemblies are arranged at intervals, and the two ends of each longitudinal beam assembly are connected with the first cross beam and the second cross beam correspondingly; the first reinforcing piece is arranged at one end of the longitudinal beam assembly and is connected with the longitudinal beam assembly and the first cross beam; the second reinforcing piece is arranged at the other end of the longitudinal beam assembly and is connected with the longitudinal beam assembly and the second cross beam; and at least one of the first reinforcing piece and the second reinforcing piece is provided with the mounting structure, and the mounting structure is used for fixing the bottom protection plate. According to the technical scheme provided by the utility model, the assembly process of the auxiliary frame assembly and the bottom guard plate is simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a subframe assembly and a vehicle. Background Art

[0002] The subframe assembly is an important part of the vehicle chassis. It is usually composed of multiple beams and brackets to form a solid frame structure for fixing and supporting the vehicle's suspension system. The subframe underbody guard is a guard installed under the subframe assembly. Its main function is to protect the subframe assembly and related components from damage by external environments such as sand, mud, and water.

[0003] In a vehicle, a subframe bottom guard is mounted on a subframe assembly via a bottom guard bracket, the bottom guard bracket is connected to a proper position of the subframe assembly via bolts, and then the bottom guard is connected to the bottom guard bracket via bolts.

[0004] This design method has the problem of complicated assembly process. Utility Model Content

[0005] The main purpose of the utility model is to provide a subframe assembly and a vehicle, aiming to simplify the assembly process of the subframe assembly and the bottom guard plate.

[0006] To achieve the above-mentioned purpose, the subframe assembly proposed by the utility model includes:

[0007] First beam;

[0008] A second crossbeam, arranged parallel to the first crossbeam;

[0009] Two longitudinal beam assemblies are provided at intervals, and two ends of each longitudinal beam assembly are respectively connected to the first cross beam and the second cross beam;

[0010] A first reinforcement member, provided at one end of the longitudinal beam assembly, connecting the longitudinal beam assembly and the first cross beam;

[0011] A second reinforcement member, provided at the other end of the longitudinal beam assembly, connecting the longitudinal beam assembly and the second cross beam; and

[0012] A mounting structure, at least one of the first reinforcement and the second reinforcement is provided with the mounting structure, and the mounting structure is used to fix the bottom guard plate.

[0013] In one embodiment, the first reinforcement has a first bottom surface facing the ground, the second reinforcement has a second bottom surface facing the ground, the first bottom surface and the second bottom surface are provided with the mounting structure, and the first bottom surface and the second bottom surface are located in the same plane.

[0014] In one embodiment, the longitudinal beam assembly comprises:

[0015] A longitudinal beam body, two ends of which are respectively connected to the first cross beam and the second cross beam; and

[0016] A front swing arm bracket, connected to one end of the longitudinal beam body and the first cross beam, and used for mounting a front swing arm of a vehicle;

[0017] Wherein, the first reinforcement connects the front swing arm bracket and the first cross beam, and the second reinforcement connects the other end of the longitudinal beam body and the second cross beam.

[0018] In one embodiment, the front swing arm bracket includes:

[0019] a bracket body, connecting one end of the longitudinal beam body and the first cross beam; and

[0020] The stress guiding structure connects the support body and the first cross beam and extends in an arc shape along the outer wall of the first cross beam.

[0021] In one embodiment, the subframe assembly further includes a stabilizer bar bracket, which is fixed to a side of the first cross beam away from the longitudinal beam body and connected to the front swing arm bracket; and / or,

[0022] The longitudinal beam assembly also includes a rear swing arm bracket, which is arranged on the longitudinal beam body and away from the front swing arm bracket, and is used for installing the rear swing arm of the vehicle.

[0023] In one embodiment, the first cross beam includes a bending section and a connecting section, the connecting sections are provided at both ends of the bending section, the bending section is bent in a direction close to the ground, each connecting section is connected to a longitudinal beam body, one end of the front swing arm bracket is connected to the longitudinal beam body, and the other end of the front swing arm bracket is connected to the bending section and the connecting section.

[0024] In one embodiment, the subframe assembly further includes:

[0025] A first suspension mounting structure, wherein the first suspension mounting structure is disposed at one end of the longitudinal beam body away from the first cross beam, and the first suspension mounting structure and the longitudinal beam body are an integrated structure; and

[0026] The second suspension mounting structure is fixed to the first cross beam and close to the connection between the first cross beam and one of the longitudinal beam bodies. The first suspension mounting structure and the second suspension mounting structure are used together to install the suspension system of the vehicle.

[0027] In one embodiment, the second suspension mounting structure is provided with a stress release hole, and the stress release hole is provided at a connection between the second suspension mounting structure and the first crossbeam.

[0028] In one embodiment, both ends of the second suspension mounting structure are provided with the stress release holes; and / or,

[0029] The stress release hole is provided on a side of the second suspension mounting structure facing toward and / or away from the longitudinal beam body.

[0030] The utility model also provides a vehicle, comprising the above-mentioned subframe assembly.

[0031] The sub-frame assembly in the technical solution of the utility model includes a first crossbeam, a second crossbeam, a longitudinal beam assembly, a first reinforcement, a second reinforcement and a mounting structure. The first crossbeam, the second crossbeam and the two longitudinal beam assemblies form a frame structure to ensure the strength and rigidity of the sub-frame assembly and better withstand loads and impacts. The first reinforcement is arranged at one end of the longitudinal beam assembly and connected to the first crossbeam, thereby strengthening the connection strength between the longitudinal beam assembly and the first crossbeam. The second reinforcement is arranged at the other end of the longitudinal beam assembly and connected to the second crossbeam, thereby strengthening the connection strength between the longitudinal beam assembly and the second crossbeam. In addition, the first reinforcement and the second reinforcement strengthen the rigidity of the sub-frame assembly as a whole, reduce the possibility of deformation of the sub-frame assembly, improve the overall stability of the sub-frame assembly, extend the service life of the sub-frame assembly, and improve the safety of the vehicle. Among them, a mounting structure can be set on the first reinforcement so that the bottom guard plate can be directly assembled on the first reinforcement; a mounting structure can also be set on the second reinforcement so that the bottom guard plate can be directly assembled on the second reinforcement; a mounting structure can also be set on both the first reinforcement and the second reinforcement so that the bottom guard plate can be assembled on the first reinforcement and the second reinforcement at the same time, thereby realizing the assembly of the bottom guard plate and the subframe assembly without the need to additionally set up a bottom guard plate bracket, thereby improving the integration of the subframe assembly and simplifying the assembly process of the subframe assembly and the bottom guard plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0033] Figure 1 A schematic diagram of the structure of an embodiment of a subframe assembly provided by the utility model Figure 1 ;

[0034] Figure 2 A schematic diagram of the structure of an embodiment of a subframe assembly provided by the utility model Figure 2 ;

[0035] Figure 3 A partial structural diagram of an embodiment of a subframe assembly provided by the utility model Figure 1 ;

[0036] Figure 4 A partial structural diagram of an embodiment of a subframe assembly provided by the utility model Figure 2 .

[0037] Description of Figure Numbers:

[0038] 100, first cross beam; 110, curved section; 120, connecting section;

[0039] 200, second beam;

[0040] 300, longitudinal beam assembly; 310, longitudinal beam body; 320, front swing arm bracket; 321, bracket body; 322, stress guiding structure; 330, rear swing arm bracket;

[0041] 400, first reinforcement member;

[0042] 500, second reinforcement member;

[0043] 600, mounting structure; 610, nut;

[0044] 700, stabilizer bar bracket;

[0045] 810, first suspension mounting structure; 820, second suspension mounting structure; 821, support portion; 8211, stress release hole; 822, sleeve portion.

[0046] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0048] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0049] In the present invention, unless otherwise clearly defined and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; "connection" can be a mechanical connection or an electrical connection, a direct connection, or an indirect connection through an intermediate medium, or the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to specific circumstances.

[0050] In addition, if there are descriptions such as "first" and "second" in the embodiments of the utility model, the descriptions such as "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0051] The utility model provides a subframe assembly.

[0052] See also Figure 1 to Figure 2 , Figure 1 A schematic diagram of the structure of an embodiment of a subframe assembly provided by the utility model Figure 1 , Figure 2 A schematic diagram of the structure of an embodiment of a subframe assembly provided by the utility model Figure 2 .

[0053] In one embodiment of the utility model, the subframe assembly includes:

[0054] A first beam 100;

[0055] A second crossbeam 200 is arranged parallel to the first crossbeam 100;

[0056] Two longitudinal beam assemblies 300 are provided at intervals, and two ends of each longitudinal beam assembly 300 are respectively connected to the first cross beam 100 and the second cross beam 200;

[0057] The first reinforcement member 400 is provided at one end of the longitudinal beam assembly 300 and connects the longitudinal beam assembly 300 and the first cross beam 100;

[0058] A second reinforcement member 500 is provided at the other end of the longitudinal beam assembly 300 to connect the longitudinal beam assembly 300 and the second cross beam 200; and

[0059] Mounting structure 600 , at least one of the first reinforcement 400 and the second reinforcement 500 is provided with a mounting structure 600 , and the mounting structure 600 is used to fix the bottom guard plate.

[0060] The sub-frame assembly in the technical solution of the utility model comprises a first crossbeam 100, a second crossbeam 200, a longitudinal beam assembly 300, a first reinforcement 400, a second reinforcement 500 and a mounting structure 600. The first crossbeam 100, the second crossbeam 200 and the two longitudinal beam assemblies 300 form a frame structure to ensure the strength and rigidity of the sub-frame assembly and better bear load and impact. The first reinforcement 400 is arranged at one end of the longitudinal beam assembly 300 and connected to the first crossbeam 100, thereby strengthening the connection strength between the longitudinal beam assembly 300 and the first crossbeam 100. The second reinforcement 500 is arranged at the other end of the longitudinal beam assembly 300 and connected to the second crossbeam 200, thereby strengthening the connection strength between the longitudinal beam assembly 300 and the second crossbeam 200. In addition, the first reinforcement 400 and the second reinforcement 500 strengthen the rigidity of the sub-frame assembly as a whole, reduce the possibility of deformation of the sub-frame assembly, improve the stability of the sub-frame assembly as a whole, extend the service life of the sub-frame assembly, and improve the safety of the vehicle. Among them, the mounting structure 600 can be set on the first reinforcement 400, so that the bottom guard plate can be directly assembled on the first reinforcement 400; the mounting structure 600 can also be set on the second reinforcement 500, so that the bottom guard plate can be directly assembled on the second reinforcement 500; the mounting structure 600 can also be set on both the first reinforcement 400 and the second reinforcement 500, so that the bottom guard plate can be assembled on the first reinforcement 400 and the second reinforcement 500 at the same time, thereby realizing the assembly of the bottom guard plate and the sub-frame assembly without the need to additionally set up a bottom guard plate bracket, thereby improving the integration of the sub-frame assembly and simplifying the assembly process of the sub-frame assembly and the bottom guard plate.

[0061] The mounting structure 600 can be assembled with the bottom guard plate by various means such as clamping or bolt locking. Specifically in this embodiment, the mounting structure 600 is provided on the two first reinforcement members 400 and the two second reinforcement members 500 to improve the firmness of the installation of the sub-frame assembly and the bottom guard plate, reduce the possibility of the bottom guard plate falling off, and improve the safety of the vehicle.

[0062] In one embodiment, the mounting structure 600 includes a mounting hole and a nut 610 , the nut 610 is disposed at the periphery of the mounting hole, and the bottom guard plate connects the mounting hole and the nut 610 .

[0063] Reference Figure 1 and Figure 3In an embodiment of the utility model, the mounting structure 600 includes a mounting hole and a nut 610, and the bottom guard plate and the nut 610 are connected by screw locking, which has a simple structure, is easy to manufacture, and has low cost; on the other hand, the nut 610 welded on the periphery of the mounting hole improves the strength of the connection, making the connection between the bottom guard plate and the sub-frame assembly more secure; on the other hand, the detachable connection of the bottom guard plate is realized, making the bottom guard plate easy to disassemble and assemble, thereby facilitating the repair and replacement of parts at the sub-frame.

[0064] In one embodiment, the first reinforcement 400 has a first bottom surface facing the ground, the second reinforcement 500 has a second bottom surface facing the ground, the first bottom surface and the second bottom surface are provided with a mounting structure 600, and the first bottom surface and the second bottom surface are located in the same plane.

[0065] In the embodiment of the utility model, the first bottom surface of the first reinforcement 400 and the second bottom surface of the second reinforcement 500 are both provided with a mounting structure 600. The bottom guard plate is mounted together by the mounting structure 600 on the first reinforcement 400 and the mounting structure 600 on the second reinforcement 500, thereby enhancing the connection strength between the sub-frame assembly and the bottom guard plate, so that the bottom guard plate can be firmly fixed on the sub-frame assembly, reducing the possibility of the bottom guard plate falling off when the vehicle is driving on a bumpy road, and improving the safety performance of the vehicle. The first bottom surface and the second bottom surface are located in the same plane, so that the assembly structure on the bottom guard plate corresponding to the mounting structure 600 is also located in the same plane, which is conducive to reducing the design difficulty, manufacturing difficulty and assembly difficulty of the bottom guard plate.

[0066] In one embodiment, the longitudinal beam assembly 300 includes:

[0067] A longitudinal beam body 310, two ends of which are respectively connected to the first cross beam 100 and the second cross beam 200; and

[0068] A front swing arm bracket 320, connected to one end of the longitudinal beam body 310 and the first cross beam 100, for mounting a front swing arm of the vehicle;

[0069] The first reinforcement 400 connects the front swing arm bracket 320 and the first cross beam 100 , and the second reinforcement 500 connects the other end of the longitudinal beam body 310 and the second cross beam 200 .

[0070] Reference Figure 1 and Figure 3In the embodiment of the utility model, the longitudinal beam assembly 300 includes a longitudinal beam body 310 and a front swing arm bracket 320. The two ends of the longitudinal beam body 310 are respectively connected to the first cross beam 100 and the second cross beam 200, so that the longitudinal beam body 310, the first cross beam 100 and the second cross beam 200 form a frame structure. The front swing arm bracket 320 is used to install the front swing arm of the vehicle, so that the subframe assembly integrates more functions. The front swing arm bracket 320 connects one end of the longitudinal beam body 310 and the first cross beam 100, which enhances the rigidity of the connection between the longitudinal beam body 310 and the first cross beam 100, making the subframe assembly less prone to deformation. The first reinforcement 400 connects the front swing arm bracket 320 and the first cross beam 100, so that the first cross beam 100, the longitudinal beam body 310, the front swing arm bracket 320 and the first reinforcement 400 also form a frame structure, and the longitudinal beam body 310, the front swing arm bracket 320 and the first reinforcement 400 are all connected to the first cross beam 100, which strengthens the strength and rigidity of the connection between the four, reduces the possibility of damage or deformation of the subframe assembly, and prolongs the service life of the subframe assembly. The second reinforcement 500 connects the longitudinal beam body 310 and the second cross beam 200, so that the longitudinal beam body 310, the second cross beam 200 and the second reinforcement 500 are connected in pairs to form a frame structure, which strengthens the strength and rigidity of the connection between the three, reduces the possibility of damage or deformation of the subframe assembly, and prolongs the service life of the subframe assembly.

[0071] In one embodiment, the front swing arm bracket 320 includes:

[0072] A bracket body 321 connecting one end of the longitudinal beam body 310 and the first cross beam 100; and

[0073] The stress guiding structure 322 connects the bracket body 321 and the first beam 100 , and extends in an arc shape along the outer wall of the first beam 100 .

[0074] Reference Figure 2 and Figure 4 In an embodiment of the utility model, the front swing arm bracket 320 includes a bracket body 321 and a stress guiding structure 322. The bracket body 321 is responsible for assembling the front swing arm. The stress guiding structure 322 is integrally formed with the bracket body 321. The stress guiding structure 322 extends in an arc shape along the outer wall of the first cross beam 100 and is not parallel to the axis of the first cross beam 100. The stress transmitted from the front swing arm to the bracket body 321 can be transmitted along the stress guiding structure 322, so that the stress guiding structure 322 can guide and disperse the stress, reduce the stress concentration of the bracket body 321 and the first cross beam 100, improve the deformation resistance of the front swing arm bracket 320 and the first cross beam 100, reduce the possibility of separation of the front swing arm bracket 320 and the first cross beam 100, extend the service life of the front swing arm bracket 320 and the first cross beam 100, and improve the safety of the vehicle.

[0075] In one embodiment, the subframe assembly further includes a stabilizer bar bracket 700, which is fixed to a side of the first cross beam 100 away from the longitudinal beam body 310 and connected to the front swing arm bracket 320; and / or,

[0076] The longitudinal beam assembly 300 further includes a rear swing arm bracket 330 , which is disposed on the longitudinal beam body 310 and away from the front swing arm bracket 320 , and is used for installing the rear swing arm of the vehicle.

[0077] Reference Figure 2 and Figure 4 In the embodiment of the utility model, the sub-frame assembly further includes a stabilizer bar bracket 700, which is used to assemble the stabilizer bar of the vehicle, so that the sub-frame assembly integrates more functions. The stabilizer bar bracket 700 is arranged on the side of the first cross beam 100 away from the longitudinal beam body 310 and is connected to the front swing arm bracket 320, which reduces the possibility of the stabilizer bar bracket 700 falling off. The first cross beam 100, the front swing arm bracket 320 and the stabilizer bar bracket 700 are connected in pairs to form a frame structure, which strengthens the strength and rigidity of the connection between the three, thereby reducing the possibility of damage or deformation of the entire sub-frame assembly, extending the service life of the sub-frame assembly, and improving the safety of the vehicle.

[0078] Reference Figure 1 and Figure 2 In an embodiment of the utility model, the longitudinal beam assembly 300 also includes a rear swing arm bracket 330, which is fixed to one end of the longitudinal beam body 310 close to the second cross beam 200 and is used to assemble the rear swing arm of the vehicle, so that the subframe assembly integrates more functions and reduces the number of parts of the vehicle.

[0079] In one embodiment, the first cross beam 100 includes a bending section 110 and a connecting section 120. The connecting sections 120 are provided at both ends of the bending section 110. The bending section 110 is bent toward the ground. Each connecting section 120 is connected to a longitudinal beam body 310. One end of the front swing arm bracket 320 is connected to the longitudinal beam body 310, and the other end of the front swing arm bracket 320 is connected to the bending section 110 and the connecting section 120.

[0080] Reference Figure 1 In the embodiment of the present utility model, the first cross beam 100 includes a curved section 110 and connecting sections 120 provided at both ends of the curved section 110. The two connecting sections 120 are respectively connected to the two longitudinal beam bodies 310. The middle curved section 110 is bent toward the ground, which improves the anti-deformation capability of the first cross beam 100 along its own extension direction, thereby improving the rigidity of the first cross beam 100. Figure 3When the front swing arm bracket 320 is connected to the first cross beam 100, the curved section 110 and the connecting section 120 are connected at the same time, thereby improving the connection strength between the front swing arm bracket 320 and the first cross beam 100, reducing the possibility of the front swing arm bracket 320 falling off, and improving the safety of the vehicle. Among them, the specific shape of the connecting section 120, the specific shape of the curved section 110, and the degree of curvature can be adjusted and designed through topological technology to meet the functional requirements, and are not limited here.

[0081] In an embodiment of the utility model, the second cross beam 200 and the first cross beam 100 adopt the same design. The second cross beam 200 includes a bending section 110 and connecting sections 120 arranged at both ends of the bending section 110. The two connecting sections 120 are respectively connected to the two longitudinal beam bodies 310. The middle bending section 110 is bent toward the direction close to the ground, which improves the deformation resistance of the second cross beam 200 along its own extension direction, thereby improving the rigidity of the second cross beam 200.

[0082] In one embodiment, the subframe assembly further includes:

[0083] A first suspension mounting structure 810, wherein the first suspension mounting structure 810 is disposed at one end of the longitudinal beam body 310 away from the first cross beam 100, and the first suspension mounting structure 810 and the longitudinal beam body 310 are an integrated structure; and

[0084] The second suspension mounting structure 820 is fixed to the first cross beam 100 and is close to the connection between the first cross beam 100 and one of the longitudinal beam bodies 310. The first suspension mounting structure 810 and the second suspension mounting structure 820 are used together to install the suspension system of the vehicle.

[0085] Reference Figure 1In the embodiment of the utility model, the sub-frame assembly further includes two first suspension mounting structures 810 and one second suspension mounting structure 820. The two first suspension mounting structures 810 are respectively arranged on the two longitudinal beam bodies, and the second suspension mounting structure 820 is arranged on the first cross beam 100. The suspension system of the vehicle is installed through the two first suspension mounting structures 810 and one second suspension mounting structure 820. The three suspension mounting points are distributed in a triangular shape, which enhances the firmness and stability of the connection with the suspension system, thereby enhancing the stability of the suspension system. Among them, each first suspension mounting structure 810 and the corresponding longitudinal beam body 310 are an integrated structure, which improves the integration of the sub-frame assembly, reduces the number of separate suspension mounting structures, thereby reducing the manufacturing and assembly process of the sub-frame assembly, and reducing the production cost of the sub-frame assembly. The second suspension mounting structure 820 is located close to the connection between the first crossbeam 100 and one of the longitudinal beam bodies 310, rather than in the middle of the first crossbeam 100, so that the second suspension mounting structure 820 is installed at a location with greater rigidity on the first crossbeam 100. Therefore, when the suspension system transmits vibration to the sub-frame assembly during driving, the vibration of the first crossbeam 100 is relatively light, thereby improving the stability of the sub-frame assembly and extending the service life of the sub-frame assembly. Specifically in this embodiment, the stabilizer bar bracket 700, the front swing arm bracket 320 and the second suspension mounting structure 820 are arranged close to each other and have a compact structure, which is conducive to enhancing the rigidity of the three and reducing the possibility of deformation of the stabilizer bar bracket 700, the front swing arm bracket 320 and the second suspension mounting structure 820. On the other hand, referring to Figure 1 Since the second suspension mounting structure 820 is close to the front swing arm bracket 320, when the loads of both are increased at the same time, fatigue damage may be caused to the first cross beam 100 and the longitudinal beam body here. Therefore, the first reinforcement 400 designed here also plays a role in dispersing stress and prolonging the service life of the subframe assembly.

[0086] In one embodiment, the second suspension mounting structure 820 includes:

[0087] The support portion 821 is fixed to the first cross beam 100 and is disposed near the connection between the first cross beam 100 and one of the longitudinal beam bodies 310; and

[0088] The sleeve portion 822 extends in the same direction as the longitudinal beam body 310 and penetrates the support portion 821 for fixing the suspension system.

[0089] Reference Figure 3In the embodiment of the utility model, the second suspension mounting structure 820 includes a support portion 821 and a sleeve portion 822. The support portion 821 is fixed to the first cross beam 100 and mainly plays a supporting role. The sleeve portion 822 is used to connect the suspension system. The structure is simple and easy to manufacture. Specifically in this embodiment, the support portion 821 is provided with an assembly groove on the side facing the first cross beam 100. The sleeve portion 822 is fixed in the assembly groove. The outer wall of the sleeve portion 822 is welded to the inner wall of the assembly groove. The connection between the sleeve portion 822 and the support portion 821 is achieved through a simple structure; and the outer wall of the sleeve portion 822 is also welded to the first cross beam 100, which enhances the connection strength between the second suspension mounting structure 820 and the first cross beam 100, reduces the possibility of the second suspension mounting structure 820 falling off, and thus improves the stability and reliability of the vehicle's suspension system.

[0090] In an embodiment of the utility model, the support portion 821 is in the shape of a triangular prism and has three rectangular side walls, one of which is attached to and welded to the first crossbeam 100, and the angle between this rectangular side wall and the other two rectangular side walls is less than 45°. On the one hand, this makes the weld between the support portion 821 and the first crossbeam 100 longer and the connection strength higher. On the other hand, it enables the support portion 821 to better support the sleeve portion 822.

[0091] In one embodiment, the second suspension mounting structure 820 is provided with a stress release hole 8211 , and the stress release hole 8211 is provided at the connection between the second suspension mounting structure 820 and the first crossbeam 100 .

[0092] Reference Figure 3 In an embodiment of the utility model, the support portion 821 is welded to the first cross beam 100, and a stress release hole 8211 is provided at the connection between the support portion 821 and the first cross beam 100. On the one hand, the welding process may cause slight deformation of the support portion 821, and the provision of the stress release hole 821 is conducive to compensating for the welding deformation of the support portion 821 and reducing the stress concentration on the support portion 821 after welding; on the other hand, during the driving of the vehicle, the vibration and impact of the suspension system will be transmitted to the first cross beam 100 through the sleeve portion 822 and the support portion 821. At this time, the stress release hole 8211 can release part of the stress, reducing the possibility of separation of the support portion 821 from the first cross beam 100 due to excessive vibration or impact, thereby extending the service life of the second suspension mounting structure 820, and also reducing the degree of vibration of the frame structure formed by the first cross beam 100, the second cross beam 200 and the two longitudinal beam assemblies 300, thereby improving the stability of the entire subframe assembly during driving.

[0093] In one embodiment, both ends of the second suspension mounting structure 820 are provided with stress release holes 8211; and / or,

[0094] A stress relief hole 8211 is provided on a side of the second suspension mounting structure 820 facing toward and / or away from the longitudinal beam body 310 .

[0095] In an embodiment of the utility model, stress release holes 8211 are provided at both ends of the support portion 821 along the extension direction of the first beam 100. Providing more stress release holes 8211 allows the stress to be more evenly dispersed and released, further reducing the stress concentration of the support portion 821, reducing the possibility of separation of the support portion 821 from the first beam 100, and extending the service life of the second suspension mounting structure 820.

[0096] In an embodiment of the utility model, a stress release hole 8211 can be provided on the side of the support portion 821 facing the longitudinal beam body 310, and a stress release hole 8211 can also be provided on the side of the support portion 821 away from the longitudinal beam body 310. Specifically, in this embodiment, stress release holes 8211 are provided on the four corners of the support portion 821 close to the first cross beam 100. Providing more stress release holes 8211 allows stress to be more evenly dispersed and released, further reducing stress concentration on the support portion 821, reducing the possibility of separation of the support portion 821 from the first cross beam 100, and extending the service life of the second suspension mounting structure 820.

[0097] The utility model also provides a vehicle, including the above-mentioned subframe assembly. The specific structure of the subframe assembly refers to the above-mentioned embodiment. Since the vehicle adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here. By adopting the above-mentioned subframe assembly, the bottom guard plate can be directly assembled on the subframe assembly, and there is no need to design and manufacture the bottom guard plate bracket separately, which simplifies the manufacturing and assembly process and reduces the production cost of the vehicle.

[0098] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A subframe assembly, characterized in that: include: First beam; A second crossbeam, arranged parallel to the first crossbeam; Two longitudinal beam assemblies are provided at intervals, and two ends of each longitudinal beam assembly are respectively connected to the first cross beam and the second cross beam; A first reinforcement member, provided at one end of the longitudinal beam assembly, connecting the longitudinal beam assembly and the first cross beam; A second reinforcement member, provided at the other end of the longitudinal beam assembly, connecting the longitudinal beam assembly and the second cross beam; as well as A mounting structure, at least one of the first reinforcement and the second reinforcement is provided with the mounting structure, and the mounting structure is used to fix the bottom guard plate.

2. The subframe assembly according to claim 1, characterized in that: The first reinforcement has a first bottom surface facing the ground, the second reinforcement has a second bottom surface facing the ground, the first bottom surface and the second bottom surface are provided with the mounting structure, and the first bottom surface and the second bottom surface are located in the same plane.

3. The subframe assembly according to claim 1, characterized in that: The longitudinal beam assembly comprises: A longitudinal beam body, two ends of which are respectively connected to the first cross beam and the second cross beam; and A front swing arm bracket, connected to one end of the longitudinal beam body and the first cross beam, and used for mounting a front swing arm of a vehicle; Wherein, the first reinforcement connects the front swing arm bracket and the first cross beam, and the second reinforcement connects the other end of the longitudinal beam body and the second cross beam.

4. The subframe assembly according to claim 3, characterized in that: The front swing arm bracket comprises: a bracket body, connecting one end of the longitudinal beam body and the first cross beam; and The stress guiding structure connects the support body and the first cross beam and extends in an arc shape along the outer wall of the first cross beam.

5. The subframe assembly according to claim 3, characterized in that: The subframe assembly further includes a stabilizer bar bracket, which is fixed to a side of the first crossbeam away from the longitudinal beam body and connected to the front swing arm bracket; and / or, The longitudinal beam assembly also includes a rear swing arm bracket, which is arranged on the longitudinal beam body and away from the front swing arm bracket, and is used for installing the rear swing arm of the vehicle.

6. The subframe assembly according to claim 3, characterized in that: The first cross beam includes a bending section and a connecting section, wherein the connecting sections are provided at both ends of the bending section, and the bending section is bent toward the direction close to the ground. Each connecting section is connected to a longitudinal beam body, one end of the front swing arm bracket is connected to the longitudinal beam body, and the other end of the front swing arm bracket is connected to the bending section and the connecting section.

7. The subframe assembly according to claim 3, characterized in that: The subframe assembly also includes: A first suspension mounting structure, wherein the first suspension mounting structure is disposed at one end of the longitudinal beam body away from the first cross beam, and the first suspension mounting structure and the longitudinal beam body are an integrated structure; and The second suspension mounting structure is fixed to the first cross beam and close to the connection between the first cross beam and one of the longitudinal beam bodies. The first suspension mounting structure and the second suspension mounting structure are used together to install the suspension system of the vehicle.

8. The subframe assembly according to claim 7, characterized in that: The second suspension mounting structure is provided with a stress release hole, and the stress release hole is provided at the connection between the second suspension mounting structure and the first crossbeam.

9. The subframe assembly according to claim 8, characterized in that: Both ends of the second suspension mounting structure are provided with the stress release holes; and / or, The stress release hole is provided on a side of the second suspension mounting structure facing toward and / or away from the longitudinal beam body.

10. A vehicle, characterized in that: It comprises the subframe assembly as claimed in any one of claims 1 to 9.

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