Auxiliary frame assembly and vehicle

Abstract

The utility model discloses an auxiliary frame assembly and a vehicle, the auxiliary frame assembly comprises an auxiliary frame, the auxiliary frame comprises a frame main body and a plurality of groups of control arm mounting brackets arranged on the frame main body, the control arm mounting brackets are used for being connected with a suspension of the vehicle, and each group of control arm mounting brackets comprises two connecting brackets which are oppositely arranged at intervals; a connecting hole penetrating in the thickness direction is formed in the connecting support, a reinforcing structure is connected between at least one connecting support of the at least one control arm mounting support and the frame body, and the reinforcing structure and the connecting support connected with the reinforcing structure are arranged in the extending direction of the connecting hole. According to the auxiliary frame assembly, the rigidity of the control arm installation support can be improved through the reinforcing structure, the structural bearing capacity of the control arm installation support can be improved, and therefore the strength and durability of the auxiliary frame are improved.

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] With the rapid development of the new energy vehicle industry, consumers are paying more and more attention to the energy consumption and handling performance of electric vehicles. Aluminum alloy has the characteristics of high strength, low density, easy forming and corrosion resistance. Die-cast aluminum subframes have gradually become an important technical route for lightweight automobile chassis, and their application prospects in mid-to-high-end models are becoming increasingly broad. However, the suspension mounting points on the subframes in related technologies are usually sheet-like thin plate structures with insufficient rigidity. Therefore, there is room for improvement. Utility Model Content

[0003] The utility model provides a subframe assembly, which can improve the rigidity of a control arm mounting bracket.

[0004] The utility model also provides a vehicle with the auxiliary frame assembly.

[0005] According to the first aspect of the utility model, the subframe assembly includes: a subframe, the subframe includes a frame body and multiple groups of control arm mounting brackets arranged on the frame body, the control arm mounting brackets are used to connect with the suspension of the vehicle, each group of the control arm mounting brackets includes two connecting brackets arranged relatively spaced apart, and the connecting brackets are formed with connecting holes penetrating along the thickness direction, at least one connecting bracket of at least one group of the control arm mounting brackets is connected to the frame body with a reinforcing structure, and the reinforcing structure and the connected connecting brackets are arranged along the extension direction of the connecting hole.

[0006] According to the subframe assembly of the first aspect of the utility model, a reinforcing structure is connected between at least one connecting bracket of at least one group of control arm mounting brackets and the frame body, and the reinforcing structure and the connected connecting bracket are arranged along the extension direction of the connecting hole. The reinforcing structure can improve the rigidity of the connecting bracket, thereby effectively dispersing the stress acting on the connecting bracket, increasing the structural bearing capacity of the control arm mounting bracket, and improving the strength and durability of the subframe. In addition, the connecting bracket connected to the reinforcing structure has a higher static stiffness, which can provide a larger dynamic performance adjustment space, which is beneficial to improving the comfort of the vehicle suspension and the vehicle handling.

[0007] According to some embodiments of the present invention, an installation space is defined between two connecting brackets of a group of control arm mounting brackets, and the reinforcing structure is located on a side of the connecting bracket away from the installation space.

[0008] According to some embodiments of the present utility model, the projection of the reinforcement structure on the reference plane is a first projection, the projection of the connecting bracket connected to the reinforcement structure on the reference plane is a second projection, the first projection is located within the second projection, and the reference plane is perpendicular to the extension direction of the connecting hole.

[0009] According to some embodiments of the present invention, the connecting bracket, the reinforcing structure and the frame body are integrally formed.

[0010] According to some embodiments of the utility model, the front cross beam of the frame body is in a hollow tubular shape, a first cavity is formed in the front cross beam, a first reinforcing rib is provided in the first cavity, and the first reinforcing rib is supported between inner side walls of the first cavity that are opposite in the up and down directions.

[0011] According to some embodiments of the present invention, the first reinforcing rib is parallel to the extension direction of the front cross beam.

[0012] According to some embodiments of the utility model, the first reinforcing rib is set at an angle with the extension direction of the front cross beam and is provided with a plurality of reinforcing ribs arranged along the extension direction of the front cross beam, and both ends of the first reinforcing rib in the extension direction of the front cross beam are connected to the inner side wall of the first cavity.

[0013] According to some embodiments of the utility model, the connection between the left longitudinal beam and the right longitudinal beam of the frame body and the front cross beam is formed as a stabilizer bar mounting part, a second cavity is formed in the stabilizer bar mounting part, a second reinforcing rib is provided in the second cavity, and at least a part of the second reinforcing rib is supported between the inner side walls of the second cavity that are opposite in the up and down directions.

[0014] According to some embodiments of the present invention, the second reinforcing rib includes a first sub-reinforcing rib and a second sub-reinforcing rib, the first sub-reinforcing rib is supported between the inner side walls of the second cavity that are opposite in the up and down directions, the second sub-reinforcing rib is provided with a plurality of second sub-reinforcing ribs arranged in a cross shape on the inner bottom wall of the second cavity and separated from the inner top wall of the second cavity, and at least part of the second sub-reinforcing ribs intersects with the first sub-reinforcing ribs.

[0015] According to some embodiments of the utility model, it also includes: a first reinforcing bracket, which is connected between the front crossbeam of the frame body and the left and right longitudinal beams, and between the rear crossbeam of the frame body and the left and right longitudinal beams; and / or the subframe assembly also includes: a second reinforcing bracket, a motor suspension mounting point is formed on the front crossbeam of the frame body, and the second reinforcing bracket is arranged on the front crossbeam and adjacent to the motor suspension mounting point.

[0016] A vehicle according to an embodiment of the second aspect of the utility model includes: the above-mentioned subframe assembly.

[0017] According to the vehicle of the embodiment of the second aspect of the utility model, a reinforcing structure is connected between at least one connecting bracket of at least one group of control arm mounting brackets and the frame body, and the reinforcing structure and the connected connecting bracket are arranged along the extension direction of the connecting hole. The stiffness of the connecting bracket can be improved by the reinforcing structure, so as to effectively disperse the stress acting on the connecting bracket, increase the structural bearing capacity of the control arm mounting bracket, and improve the strength and durability of the subframe. In addition, the connecting bracket connected to the reinforcing structure has a higher static stiffness, which can provide a larger dynamic performance adjustment space, which is beneficial to improving the comfort of the vehicle suspension and the vehicle handling.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of a subframe assembly according to an embodiment of the utility model;

[0020] Figure 2 is a bottom side view of a subframe assembly according to an embodiment of the utility model;

[0021] Figure 3 is a schematic diagram of a subframe of a subframe assembly according to an embodiment of the utility model;

[0022] Figure 4 is a partial enlarged view of one of the control arm mounting brackets of the subframe assembly according to an embodiment of the utility model;

[0023] Figure 5 is a partial cross-sectional view of a front cross beam of a subframe assembly according to an embodiment of the utility model;

[0024] Figure 6 is a partial cross-sectional view of a front cross beam of a subframe assembly according to another embodiment of the utility model;

[0025] Figure 7 It is a partial cross-sectional view of a subframe assembly according to an embodiment of the utility model.

[0026] Reference numerals:

[0027] 100. Subframe assembly;

[0028] 10. Subframe;

[0029] 1. Frame body; 11. Front cross beam; 111. First cavity; 112. First reinforcing rib; 12. Rear cross beam; 13. Left longitudinal beam; 14. Right longitudinal beam; 15. Stabilizer bar mounting portion; 151. Second cavity; 152. Second reinforcing rib;

[0030] 2. Control arm mounting bracket; 21. Connecting bracket; 211. Connecting hole; 22. Strengthening structure; 3. Motor suspension mounting point;

[0031] 20. The first reinforcement bracket;

[0032] 30. The second reinforcement bracket. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0034] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the applicability of other processes and / or the use of other materials.

[0035] The subframe assembly 100 according to an embodiment of the first aspect of the utility model will be described below with reference to the accompanying drawings.

[0036] like Figures 1 to 7 As shown, the subframe assembly 100 according to the first embodiment of the utility model includes: a subframe 10, the subframe 10 includes a frame body 1 and a plurality of control arm mounting brackets 2 arranged on the frame body 1, the frame body 1 includes a front cross beam 11, a rear cross beam 12, a left longitudinal beam 13 and a right longitudinal beam 14, the two ends of the front cross beam 11 and the rear cross beam 12 are respectively connected to the two ends of the left longitudinal beam 13 and the right longitudinal beam 14, that is, the left and right ends of the front cross beam 11 are respectively connected to the front end of the left longitudinal beam 13 and the front end of the right longitudinal beam 14, and the left and right ends of the rear cross beam 12 are respectively connected to the rear end of the left longitudinal beam 13 and the rear end of the right longitudinal beam 14, so that the frame body 1 of the frame structure is formed by connecting the front cross beam 11, the rear cross beam 12, the left longitudinal beam 13 and the right longitudinal beam 14.

[0037] The control arm mounting bracket 2 is used to connect with the suspension of the vehicle. Each group of control arm mounting brackets 2 includes two connecting brackets 21 arranged relatively at intervals. A connecting hole 211 is formed on the connecting bracket 21 that penetrates along the thickness direction. If the control arm mounting bracket 2 is used to connect the control arm of the suspension, the end of the control arm of the suspension away from the wheel can be placed between the two connecting brackets 21 in the same group, and fasteners can be passed through the connecting hole 211 on the connecting bracket 21 and the control arm of the suspension to achieve the connection between the control arm and the control arm mounting bracket 2, and then the fixed connection between the suspension and the subframe 10 is achieved through the connection between the control arm mounting bracket 2 and the suspension.

[0038] Among them, at least one connecting bracket 21 of at least one group of control arm mounting brackets 2 is connected to the frame body 1 with a reinforcing structure 22, and the reinforcing structure 22 and the connected connecting bracket 21 are arranged along the extension direction of the connecting hole 211. That is to say, the connecting bracket 21 is directly connected to the frame body 1 and is also connected to the frame body 1 through the reinforcing structure 22, and the reinforcing structure 22 is supported between the connecting bracket 21 and the frame body 1, and at the same time, the reinforcing structure 22 is arranged on one side of the connecting bracket 21 in the extension direction of the connecting hole 211, that is, in the axial direction of the connecting hole 211. Therefore, the stiffness of the connecting bracket 21 can be well improved through the reinforcing structure 22, so that the stress acting on the connecting bracket 21 can be effectively dispersed, and the structural bearing capacity of the control arm mounting bracket 2 is increased, so as to improve the strength and durability of the subframe. In addition, the connecting bracket 21 connected to the reinforcing structure 22 has a higher static stiffness, which can provide a larger dynamic performance adjustment space, which is conducive to improving the comfort of the vehicle suspension and the vehicle handling.

[0039] It should be noted that the reinforcing structure 22 may be connected between only one of the connecting brackets 21 of one group of control arm mounting brackets 2 and the vehicle frame body 1; or only two connecting brackets 21 of one group of control arm mounting brackets 2 and the vehicle frame body 1 are connected with the reinforcing structure 22; or one of the connecting brackets 21 of multiple groups of control arm mounting brackets 2 and the vehicle frame body 1 are connected with the reinforcing structure 22; or one of the connecting brackets 21 of some of the multiple groups of control arm mounting brackets 2 and the vehicle frame body 1 are connected with the reinforcing structure 22, and two connecting brackets 21 of another part of the multiple groups of control arm mounting brackets 2 and the vehicle frame body 1 are both connected with the reinforcing structure 22; or two connecting brackets 21 of multiple groups of control arm mounting brackets 2 and the vehicle frame body 1 are both connected with the reinforcing structure 22, etc. Among them, the number of connecting brackets 21 connected to the reinforcing structure 22 can be flexibly adjusted according to the rigidity requirements and space limitations of the control arm mounting brackets 2, and no specific restrictions are made here.

[0040] According to the subframe assembly 100 of the first aspect of the utility model, a reinforcing structure 22 is connected between at least one connecting bracket 21 of at least one group of control arm mounting brackets 2 and the frame body 1, and the reinforcing structure 22 and the connected connecting bracket 21 are arranged along the extension direction of the connecting hole 211. The reinforcing structure 22 can improve the rigidity of the connecting bracket 21, thereby effectively dispersing the stress acting on the connecting bracket 21, increasing the structural bearing capacity of the control arm mounting bracket 2, and improving the strength and durability of the subframe. In addition, the connecting bracket 21 connected to the reinforcing structure 22 has a higher static rigidity, which can provide a larger dynamic performance adjustment space, which is beneficial to improving the comfort of the vehicle suspension and the vehicle handling.

[0041] In a specific example, the subframe 10 is arranged at the rear of the vehicle body to connect the main frame and the suspension of the rear wheels of the vehicle, the front cross beam 11, the rear cross beam 12, the left longitudinal beam 13 and the right longitudinal beam 14 are all hollow tubes, and the suspension of the rear wheels of the vehicle is a five-link suspension, wherein a reinforcing structure 22 is connected between the control arm mounting bracket 2 located at the front lower position, that is, the connecting bracket 21 located at the rear side of the front lower control arm mounting bracket 2 and the frame body 1, and a reinforcing structure 22 is connected between the control arm mounting bracket 2 located at the rear upper position, that is, the connecting bracket 21 located at the front side of the rear upper control arm mounting bracket 2 and the frame body 1.

[0042] According to some embodiments of the utility model, an installation space is defined between two connecting brackets 21 of a group of control arm mounting brackets 2, and the reinforcing structure 22 is located on a side of the connecting bracket 21 away from the installation space. That is, in the control arm mounting bracket 2 connected to the reinforcing structure 22, the reinforcing structure 22 is located on a side of the connecting bracket 21 away from another connecting bracket 21 of the same group. Thus, it is possible to avoid the reinforcing structure 22 occupying the installation space between the two connecting brackets 21, thereby avoiding interference between the reinforcing structure 22 and the control arm of the suspension, that is, while ensuring the reinforcing effect of the reinforcing structure 22 on the rigidity of the connecting bracket 21, the risk of interference between the reinforcing structure 22 and the suspension can be reduced, so as to improve the overall stability of the vehicle.

[0043] According to some embodiments of the utility model, the projection of the reinforcing structure 22 on the reference surface is the first projection, the projection of the connecting bracket 21 connected to the reinforcing structure 22 on the reference surface is the second projection, the first projection is located within the second projection, and the reference surface is perpendicular to the extension direction of the connecting hole 211. The first projection and the second projection may coincide, or the second projection may be larger than the first projection, and there is a gap between the outer peripheral contour of the first projection and the outer peripheral contour of the second projection. Thus, the reinforcing structure 22 can better cover the connecting bracket 21 in the extension direction of the reference surface, thereby improving the reinforcing effect of the reinforcing structure 22 on the rigidity of the connecting bracket 21, which is conducive to further improving the anti-bending strength of the connecting bracket 21.

[0044] According to some embodiments of the utility model, the connection hole 211 extends into the reinforcement structure 22. That is to say, a hole-shaped structure connected with the connection hole 211 is formed in the reinforcement structure 22. Therefore, during the installation process of the suspension, the fastener used to connect the suspension with the control arm mounting bracket 2 can enter the reinforcement structure 22 through the connection hole 211, and can be connected with the reinforcement structure 22 by cooperating with the hole pile structure in the control arm mounting bracket 2, such as threaded connection. In this way, the connection position of the fastener can be increased, so that the strength of the connection point between the suspension and the control arm mounting bracket 2 can be improved. Among them, the outside of the hole-shaped part of the reinforcement structure 22 communicating with the connection hole 211 is a solid structure, which can improve the structural strength of the reinforcement structure 22, and thus can strengthen the connection bracket 21 through the reinforcement structure 22.

[0045] According to some embodiments of the utility model, the connecting bracket 21, the reinforcing structure 22 and the frame body 1 are integrally formed. That is, the connecting bracket 21, the reinforcing structure 22 and the frame body 1 are integrated. Therefore, the integrally formed structure can not only ensure the structural and performance stability of the connecting bracket 21, the reinforcing structure 22 and the frame body 1, but also facilitate molding and simple manufacturing, and eliminate the assembly parts and connection procedures used for connecting the connecting bracket 21, the reinforcing structure 22 and the frame body 1, so that the production cost is low and the assembly efficiency of the connecting bracket 21, the reinforcing structure 22 and the frame body 1 is greatly improved, and the connection reliability of the connecting bracket 21, the reinforcing structure 22 and the frame body 1 is ensured. Moreover, the integrally formed structure has higher overall strength and stability and longer service life.

[0046] According to some embodiments of the utility model, the front cross beam 11 of the vehicle frame body 1 is in a hollow tubular shape, a first cavity 111 is formed in the front cross beam 11, a first reinforcing rib 112 is provided in the first cavity 111, and the first reinforcing rib 112 is supported between the inner side walls of the first cavity 111 that are opposite in the up-down direction. In other words, the upper end of the first reinforcing rib 112 is connected to the inner top surface of the first cavity 111, and the lower end of the first reinforcing rib 112 is connected to the inner bottom surface of the first cavity 111. By supporting the first reinforcing rib 112 between the inner top surface and the inner bottom surface of the first cavity 111, the overall rigidity of the front cross beam 11 can be improved, and the moment of inertia of the cross section of the front cross beam 11 can also be increased, thereby effectively improving the bending resistance of the cross beam. In addition, on a vehicle with a motor, a motor suspension mounting point 3 is formed on the front cross beam 11 of the subframe 10. Therefore, by arranging the first reinforcing rib 112 in the first cavity 111, the dynamic stiffness at the motor suspension mounting point 3 can be improved, thereby improving the natural modal frequency of the front cross beam 11, thereby reducing the risk of howling caused by the motor vibration driving the front cross beam 11 to vibrate at the same frequency, which is beneficial to improving the NVH performance of the vehicle.

[0047] According to some embodiments of the utility model, the first reinforcing rib 112 is parallel to the extension direction of the front cross beam 11 and has low processing difficulty, thereby reducing the production difficulty of the frame body 1 while ensuring the reinforcing effect of the first reinforcing rib 112 on the rigidity of the front cross beam 11.

[0048] According to some embodiments of the utility model, the first reinforcing rib 112 is arranged at an angle with the extension direction of the front cross beam 11 and is provided with a plurality of first reinforcing ribs 112 arranged along the extension direction of the front cross beam 11, and both ends of the first reinforcing rib 112 in the extension direction of the front cross beam 11 are connected to the inner side wall of the first cavity 111. Thus, the first reinforcing rib 112 can be supported in the first cavity 111 from different directions, thereby further improving the reinforcing effect of the first reinforcing rib 112 on the rigidity of the front cross beam 11. In a specific example, a plurality of first reinforcing ribs 112 are arranged in a triangular shape in the first cavity 111 along the extension direction of the front cross beam 11.

[0049] According to some embodiments of the utility model, the connection between the left longitudinal beam 13 and the right longitudinal beam 14 of the frame body 1 and the front cross beam 11 is formed as a stabilizer bar mounting portion 15, a second cavity 151 is formed in the stabilizer bar mounting portion 15, a second reinforcing rib 152 is provided in the second cavity 151, and at least part of the second reinforcing rib 152 is supported between the inner side walls of the second cavity 151 opposite to each other in the up-down direction. That is to say, at least part of the upper end of the second reinforcing rib 152 is connected to the inner top surface of the second cavity 151, and at least part of the lower end of the second reinforcing rib 152 is connected to the inner bottom surface of the second cavity 151. By at least part of the second reinforcing rib 152 being supported between the inner top surface and the inner bottom surface of the second cavity 151, the vertical stiffness of the stabilizer bar mounting portion 15 can be improved, thereby improving the strength and durability of the stabilizer bar mounting portion 15, and avoiding the risk of abnormal noise of the stabilizer bar, which is conducive to improving the NVH performance of the vehicle.

[0050] According to some embodiments of the utility model, the second reinforcing rib 152 includes a first sub-reinforcing rib and a second sub-reinforcing rib, the first sub-reinforcing rib supports the inner side wall opposite to the second cavity in the vertical direction, the second sub-reinforcing rib is provided with a plurality of cross-arranged inner bottom walls of the second cavity and separated from the inner top wall of the second cavity, and at least part of the second sub-reinforcing rib intersects with the first sub-reinforcing rib. Thus, the first sub-reinforcing rib can be well supported between the inner side walls opposite to the second cavity 151 in the vertical direction to improve the vertical rigidity of the stabilizer bar mounting portion 15, and by providing a plurality of second sub-reinforcing ribs, while improving the rigidity of the stabilizer bar mounting portion 15, a flow space can be provided for the molten material during the molding process of the frame body 1 to reduce the molding difficulty of the frame body 1. In addition, the structural strength of the first sub-reinforcing rib and the second sub-reinforcing rib can be well improved, which is conducive to improving the reinforcing effect of the first sub-reinforcing rib and the second sub-reinforcing rib on the structural strength of the stabilizer bar mounting portion 15.

[0051] According to some embodiments of the present invention, the subframe assembly 100 further includes: a first reinforcing bracket 20, which is connected between the front cross beam 11 and the left longitudinal beam 13 and the right longitudinal beam 14 of the frame body 1, and between the rear cross beam 12 and the left longitudinal beam 13 and the right longitudinal beam 14 of the frame body 1. That is to say, the front cross beam 11 and the left longitudinal beam 13 are connected by a corresponding and independent first reinforcing bracket 20, and the relative position between the front cross beam 11 and the left longitudinal beam 13 can be better maintained by the first reinforcing bracket 20; the front cross beam 11 and the right longitudinal beam 14 are connected by a corresponding and independent first reinforcing bracket 20, and the relative position between the front cross beam 11 and the right longitudinal beam 14 can be better maintained by the first reinforcing bracket 20; the rear cross beam 12 and the left longitudinal beam 13 are connected by a corresponding and independent first reinforcing bracket 20, and the relative position between the rear cross beam 12 and the left longitudinal beam 13 can be better maintained by the first reinforcing bracket 20; the rear cross beam 12 and the right longitudinal beam 14 are connected by a corresponding and independent first reinforcing bracket 20, and the relative position between the rear cross beam 12 and the right longitudinal beam 14 can be better maintained by the first reinforcing bracket 20. Therefore, the relative positions of the front cross beam 11, the left longitudinal beam 13, the right longitudinal beam 14 and the rear cross beam 12 can be well maintained through the four first reinforcing brackets 20, which can effectively improve the overall stiffness and natural modal frequency of the frame body 1, thereby improving the NVH and overall strength and durability performance of the subframe 10, and at the same time achieving flexible expansion of the architecture bandwidth of the subframe 10.

[0052] In a specific example, the first reinforcing bracket 20 is detachably connected to the frame body 1, and positioning columns are formed on the lower surfaces of the front cross beam 11, the rear cross beam 12, the left longitudinal beam 13 and the right longitudinal beam 14. Positioning holes that are plugged into and cooperate with the positioning columns are formed on the first reinforcing bracket 20, and mounting holes for installing fasteners are formed in the positioning columns. That is, the first reinforcing bracket 20 is arranged on the lower side of the frame body 1, so that the difficulty of installing the first reinforcing bracket 20 can be reduced by cooperating with the positioning columns and the positioning holes, thereby improving the assembly efficiency of the subframe assembly 100. In addition, the first reinforcing bracket 20 is in the shape of a straight bar, and a triangular connection structure is formed between the front cross beam 11, the left longitudinal beam 13 and the corresponding first reinforcing bracket 20; a triangular connection structure is formed between the front cross beam 11, the right longitudinal beam 14 and the corresponding first reinforcing bracket 20; a triangular connection structure is formed between the rear cross beam 12, the left longitudinal beam 13 and the corresponding first reinforcing bracket 20; and a triangular connection structure is formed between the rear cross beam 12, the right longitudinal beam 14 and the corresponding first reinforcing bracket 20, thereby further improving the reinforcing effect of the first reinforcing bracket 20 on the overall structural strength of the subframe 10.

[0053] According to some embodiments of the present invention, the subframe assembly 100 further includes: a second reinforcing bracket 30, a motor suspension mounting point 3 is formed on the front crossbeam 11 of the frame body 1, and the second reinforcing bracket 30 is arranged on the front crossbeam 11 and adjacent to the motor suspension mounting point 3. Therefore, by installing the second reinforcing bracket 30 on the front crossbeam 11, the overall stiffness and natural modal frequency at the motor suspension mounting point 3 can be improved, thereby improving the NVH and overall strength and durability performance of the subframe 10.

[0054] In a specific example, two second reinforcing brackets 30 are provided, wherein one second reinforcing bracket 30 is provided on the lower side of the motor suspension mounting point 3 and is located on the side of the front cross beam 11 facing the rear cross beam 12, and the other second reinforcing bracket 30 is provided on the top surface of the front cross beam 11 and is located on the outer peripheral side of the motor suspension mounting point 3, so as to ensure the reinforcing effect of the second reinforcing bracket 30 on the motor suspension mounting point 3 area.

[0055] A vehicle according to an embodiment of the second aspect of the utility model will be described below with reference to the accompanying drawings.

[0056] A vehicle according to an embodiment of the second aspect of the utility model includes: a subframe assembly 100 .

[0057] According to the vehicle of the embodiment of the second aspect of the utility model, a reinforcing structure 22 is connected between at least one connecting bracket 21 of at least one group of control arm mounting brackets 2 and the frame body 1, and the reinforcing structure 22 and the connected connecting bracket 21 are arranged along the extension direction of the connecting hole 211. The reinforcing structure 22 can improve the rigidity of the connecting bracket 21, thereby effectively dispersing the stress acting on the connecting bracket 21, increasing the structural bearing capacity of the control arm mounting bracket 2, and improving the strength and durability of the subframe. In addition, the connecting bracket 21 connected to the reinforcing structure 22 has a higher static stiffness, which can provide a larger dynamic performance adjustment space, which is beneficial to improving the comfort of the vehicle suspension and the vehicle handling.

[0058] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0060] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A subframe assembly, characterized in that: include: A subframe, the subframe includes a frame body and multiple groups of control arm mounting brackets arranged on the frame body, the control arm mounting brackets are used to connect with the suspension of the vehicle, each group of the control arm mounting brackets includes two connecting brackets arranged relatively at intervals, and the connecting brackets are formed with connecting holes penetrating along the thickness direction. At least one connecting bracket of at least one group of the control arm mounting brackets is connected to the frame body with a reinforcement structure, and the reinforcement structure and the connected connecting brackets are arranged along the extension direction of the connecting hole.

2. The subframe assembly according to claim 1, characterized in that: An installation space is defined between two connecting brackets of a set of control arm mounting brackets, and the reinforcing structure is located on a side of the connecting bracket away from the installation space.

3. The subframe assembly according to claim 2, characterized in that: The projection of the reinforcing structure on the reference plane is a first projection, the projection of the connecting bracket connected to the reinforcing structure on the reference plane is a second projection, the first projection is located within the second projection, and the reference plane is perpendicular to the extension direction of the connecting hole.

4. The subframe assembly according to claim 1, characterized in that: The connecting bracket, the reinforcing structure and the frame body are integrally formed.

5. The subframe assembly according to claim 1, characterized in that: The front cross beam of the frame body is in a hollow tubular shape, a first cavity is formed in the front cross beam, a first reinforcing rib is arranged in the first cavity, and the first reinforcing rib is supported between inner side walls of the first cavity which are opposite in the up and down directions.

6. The subframe assembly according to claim 5, characterized in that: The first reinforcing rib is parallel to an extending direction of the front cross beam.

7. The subframe assembly according to claim 5, characterized in that: The first reinforcing rib is arranged at an angle with the extension direction of the front cross beam and is provided in plurality along the extension direction of the front cross beam. Both ends of the first reinforcing rib in the extension direction of the front cross beam are connected to the inner side wall of the first cavity.

8. The subframe assembly according to claim 1, characterized in that: The connections between the left and right longitudinal beams of the frame body and the front cross beam are formed as stabilizer bar mounting parts, a second cavity is formed in the stabilizer bar mounting part, a second reinforcing rib is provided in the second cavity, and at least part of the second reinforcing rib is supported between the inner side walls of the second cavity that are opposite in the up and down directions.

9. The subframe assembly according to claim 8, characterized in that: The second reinforcement rib includes a first sub-reinforcement rib and a second sub-reinforcement rib. The first sub-reinforcement rib is supported between the inner side walls of the second cavity that are opposite in the up and down directions. The second sub-reinforcement rib is provided with a plurality of cross-arranged ribs on the inner bottom wall of the second cavity and separated from the inner top wall of the second cavity. At least part of the second sub-reinforcement rib intersects with the first sub-reinforcement rib.

10. The subframe assembly according to claim 1, characterized in that: Also includes: A first reinforcing bracket, the first reinforcing bracket being connected between the front crossbeam and the left and right longitudinal beams of the frame body, and between the rear crossbeam and the left and right longitudinal beams of the frame body; And / or, the subframe assembly further includes: a second reinforcing bracket, a motor suspension mounting point is formed on the front cross beam of the frame body, and the second reinforcing bracket is arranged on the front cross beam and adjacent to the motor suspension mounting point.

11. A vehicle, characterized in that: include: A subframe assembly according to any one of claims 1 to 10.

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