Auxiliary frame assembly and vehicle

Abstract

The utility model discloses an auxiliary frame assembly and a vehicle, the auxiliary frame assembly comprises longitudinal beams, a cross beam and a plurality of control arm supports, the longitudinal beams are oppositely arranged in the transverse direction, the cross beam is connected between the two opposite longitudinal beams and is connected to the front ends of the longitudinal beams, and the plurality of control arm supports are connected to the longitudinal beams. The joint of the longitudinal beam and the cross beam is located on the front side of the joint of the longitudinal beam and the control arm supports. The cross beam is arranged at the front end of the longitudinal beam, and the control arm supports are arranged on the rear side of the cross beam, so that the longitudinal beam, the cross beam and the control arm supports are connected with one another, the overall structural strength of the auxiliary frame assembly can be improved, the avoiding space is formed below the control arm supports, the avoiding space can avoid a driving structure, and the driving structure is more compact. Therefore, the driving structure can be conveniently installed in the auxiliary frame assembly, the space arrangement requirement of the rear axle electric driving system can be met, and the performance of a vehicle can be 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] At present, the double wishbone rear suspension control device is divided into an upper control arm and a lower control arm. One end of the control arm is connected to the steering knuckle, and the other end is connected to the subframe. Each control arm has two front and rear mounting points connected to the subframe. The control arm can swing up and down around the axis of the two mounting points, thereby controlling the bouncing trajectory of the rear wheel.

[0003] In the related art, the control arm bracket is divided into two upper and lower brackets, and the two brackets are respectively welded to the longitudinal beam of the subframe. The lower bracket extends to the crossbeam of the subframe and is connected with a reinforcing plate. If the vehicle adopts rear axle electric drive, this will cause the space of the crossbeam to be occupied, so that the lower bracket is in a suspended state, and it will also cause the lower bracket to deform significantly when subjected to lateral force, and thus fail to meet the lateral bending stiffness of the subframe. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a subframe assembly, which can increase the space in the middle part, thereby meeting the space layout requirements of the rear axle electric drive system, and further improving the performance of the vehicle.

[0005] The utility model further provides a vehicle.

[0006] According to the utility model, the subframe assembly includes: a longitudinal beam, a cross beam and a plurality of control arm brackets, the longitudinal beams are arranged opposite to each other in the transverse direction, the cross beam is connected between two opposite longitudinal beams and connected to the front ends of the longitudinal beams, the plurality of control arm brackets are connected to the longitudinal beams, and the connection between the longitudinal beam and the cross beam is located in front of the connection between the longitudinal beam and the plurality of control arm brackets.

[0007] According to the subframe assembly of the utility model, by arranging the crossbeam at the front end of the longitudinal beam and arranging the multiple control arm brackets at the rear side of the crossbeam, the longitudinal beam, the crossbeam and the multiple control arm brackets can be connected to each other, thereby improving the overall structural strength of the subframe assembly, and an avoidance space is formed under the multiple control arm brackets, and the avoidance space can avoid the drive structure, thereby facilitating the installation of the drive structure in the subframe assembly, and can also meet the space layout requirements of the rear axle electric drive system, thereby improving the performance of the vehicle.

[0008] In some examples of the present invention, the multiple control arm brackets include: an upper control arm front bracket, a lower control arm front bracket and a control arm rear bracket, the upper control arm front bracket is arranged on the longitudinal beam, the lower control arm front bracket is arranged on the longitudinal beam and is located below the upper control arm front bracket, the control arm rear bracket is arranged on the longitudinal beam and is located on the rear side of the upper control arm front bracket and the lower control arm front bracket, the control arm rear bracket is provided with an upper control arm rear mounting point and a lower control arm rear mounting point, and the upper control arm rear mounting point is located above the lower control arm mounting point.

[0009] In some examples of the present invention, the rear bracket of the control arm includes: a main bracket and a closing piece, the rear mounting point of the upper control arm and the lower control arm mounting point are arranged on the main bracket, the main bracket is formed with a mounting groove, the mounting groove is located between the rear mounting point of the upper control arm and the lower control arm mounting point, the longitudinal beam passes through the mounting groove, and the closing piece is arranged at the notch of the mounting groove.

[0010] In some examples of the present utility model, a curved beam section bent downward is formed in the middle of the longitudinal direction of the longitudinal beam, and the curved beam section passes through the installation groove.

[0011] In some examples of the present invention, the subframe assembly further includes: a reinforcing crossbeam, each of the longitudinal beams is provided with the upper control arm front bracket, the lower control arm front bracket and the control arm rear bracket, and the reinforcing crossbeam is connected between two opposite control arm rear brackets.

[0012] In some examples of the present invention, the subframe assembly further includes: a first reinforcement plate, the first reinforcement plate being connected between the top of the reinforcement beam and the rear bracket of the control arm, and a cavity being formed between the first reinforcement plate, the reinforcement beam and the rear bracket of the control arm.

[0013] In some examples of the present invention, the subframe assembly further includes: a second reinforcement plate connected between the longitudinal beam and the control arm rear bracket.

[0014] In some examples of the present invention, the subframe assembly further includes: a third reinforcement plate, the control arm rear bracket is formed with an inner groove, the third reinforcement plate is arranged in the inner groove, and the third reinforcement plate is connected to the bottom surface of the longitudinal beam.

[0015] In some examples of the present invention, the upper control arm front bracket is connected to the lower control arm front bracket; and / or the lower control arm front bracket is also connected to the crossbeam.

[0016] The vehicle according to the utility model comprises: the subframe assembly mentioned above.

[0017] Compared with the prior art, the vehicle provided by the utility model adopts a method in which a cross beam is arranged at the front end of a longitudinal beam, and a plurality of control arm brackets are arranged at the rear side of the cross beam, so that the longitudinal beam, the cross beam and the plurality of control arm brackets can be connected to each other, thereby improving the overall structural strength of the sub-frame assembly, and an avoidance space is formed under the plurality of control arm brackets, and the avoidance space can avoid the drive structure, thereby facilitating the installation of the drive structure in the sub-frame assembly, and can also meet the space layout requirements of the rear axle electric drive system, thereby improving the performance of the vehicle.

[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] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 It is a schematic structural diagram of a sub-frame assembly according to a first angle of the embodiment of the utility model;

[0021] Figure 2 is a second angle structural schematic diagram of the sub-frame assembly according to an embodiment of the utility model;

[0022] Figure 3 It is a partial structural schematic diagram of a subframe assembly according to an embodiment of the utility model;

[0023] Reference numerals:

[0024] 100. Subframe assembly;

[0025] 10. Longitudinal beam; 20. Cross beam; 30. Control arm bracket; 31. Upper control arm front bracket; 32. Lower control arm front bracket; 33. Control arm rear bracket; 331. Main bracket; 332. Closing piece; 40. Reinforced cross beam; 50. First reinforcement plate; 60. Second reinforcement plate; 70. Third reinforcement plate. DETAILED DESCRIPTION

[0026] The embodiments of the present utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present utility model are described in detail below.

[0027] Reference below Figure 1-Figure 3 The subframe assembly 100 according to an embodiment of the present invention is described, and the subframe assembly 100 is applied to a vehicle, for example, a rear subframe of an electric vehicle.

[0028] like Figure 1-Figure 3As shown, the subframe assembly 100 according to the utility model includes: a longitudinal beam 10, a cross beam 20 and a plurality of control arm brackets 30, the longitudinal beams 10 are arranged opposite to each other in the transverse direction, the cross beam 20 is connected between two opposite longitudinal beams 10 and connected to the front end of the longitudinal beam 10, and the plurality of control arm brackets 30 are connected to the longitudinal beam 10, and the connection between the longitudinal beam 10 and the cross beam 20 is located in front of the connection between the longitudinal beam 10 and the plurality of control arm brackets 30.

[0029] It can be understood that the longitudinal beam 10, the cross beam 20 and the plurality of control arm brackets 30 constitute the main structure of the sub-frame assembly 100, the longitudinal beams 10 are arranged at intervals on the left and right, the cross beam 20 is located between the longitudinal beams 10 on the left and right sides, and the left end of the cross beam 20 is connected to the left longitudinal beam 10, and the right end of the cross beam 20 is connected to the right longitudinal beam 10, so that the cross beam 20 and the longitudinal beam 10 can form a frame structure, thereby improving the overall structural strength of the sub-frame assembly 100 and facilitating the installation of other components on the sub-frame assembly 100.

[0030] The cross beam 20 is located at the front end of the longitudinal beam 10. This arrangement can save space on the rear side of the cross beam 20, thereby increasing the space in the middle of the sub-frame assembly 100, and making it easier to install other components on the sub-frame assembly 100. A plurality of control arm brackets 30 are connected to the rear side of the connection between the cross beam 20 and the longitudinal beam 10. This arrangement allows the control arm brackets 30 to limit the control arms, thereby facilitating the arrangement of the control arms on the sub-frame assembly 100, and thus ensuring the stability of the vehicle's suspension system.

[0031] In addition, the connection between the longitudinal beam 10 and the cross beam 20 is located in front of the connection between the longitudinal beam 10 and the plurality of control arm brackets 30. This arrangement allows the longitudinal beam 10, the cross beam 20 and the control arm bracket 30 to be connected to each other, thereby improving the overall structural strength of the subframe assembly 100, thereby improving the safety of the vehicle, and the control arm bracket 30 is connected to the longitudinal beam 10 at an angle. This arrangement allows an avoidance space to be formed under the control arm bracket 30, and the avoidance space can avoid the drive structure, thereby facilitating the installation of the drive structure on the subframe assembly 100, and the drive structure does not affect the installation and layout of other components, thereby meeting the space layout requirements of the rear axle electric drive system.

[0032] Therefore, by arranging the cross beam 20 at the front end of the longitudinal beam 10 and arranging the plurality of control arm brackets 30 at the rear side of the cross beam 20, the longitudinal beam 10, the cross beam 20 and the plurality of control arm brackets 30 can be connected to each other, thereby improving the overall structural strength of the sub-frame assembly 100, and an avoidance space is formed under the plurality of control arm brackets 30, and the avoidance space can avoid the drive structure, thereby facilitating the installation of the drive structure in the sub-frame assembly 100, and can also meet the space layout requirements of the rear axle electric drive system, thereby improving the performance of the vehicle.

[0033] Among them, Figure 1 and Figure 2 As shown, multiple control arm brackets 30 include: an upper control arm front bracket 31, a lower control arm front bracket 32 ​​and a control arm rear bracket 33, the upper control arm front bracket 31 is arranged on the longitudinal beam 10, the lower control arm front bracket 32 ​​is arranged on the longitudinal beam 10 and is located below the upper control arm front bracket 31, the control arm rear bracket 33 is arranged on the longitudinal beam 10 and is located at the rear side of the upper control arm front bracket 31 and the lower control arm front bracket 32, the control arm rear bracket 33 is provided with an upper control arm rear mounting point and a lower control arm rear mounting point, and the upper control arm rear mounting point is located above the lower control arm mounting point.

[0034] That is to say, the upper control arm front bracket 31, the lower control arm front bracket 32 ​​and the control arm rear bracket 33 constitute the main structure of the control arm bracket 30, the upper control arm front bracket 31 is connected to the longitudinal beam 10, and the lower control arm front bracket 32 ​​is connected to the longitudinal beam 10, so that the control arm bracket 30 can be connected to the longitudinal beam 10, and the upper control arm front bracket 31 and the lower control arm front bracket 32 ​​are arranged opposite to each other up and down, so that the upper control arm front bracket 31 and the lower control arm front bracket 32 ​​can be connected to the longitudinal beam 10 more firmly, thereby improving the connection strength of the control arm bracket 30 and the longitudinal beam 10, and the control arm rear bracket 33 is also connected to the longitudinal beam 10, and the control arm rear bracket 33 is located at the upper control arm front bracket The upper control arm front bracket 31 and the rear side of the lower control arm front bracket 32 ​​can make the upper control arm front bracket 31 and the lower control arm front bracket 32 ​​connected to the control arm rear bracket 33 respectively, so as to facilitate the control arm to be installed on the sub-frame assembly 100. The upper control arm rear mounting point and the lower control arm rear mounting point are arranged on the control arm rear bracket 33, and the upper control arm rear mounting point and the lower control arm rear mounting point are arranged opposite to each other up and down, so as to facilitate the upper control arm to be installed on the sub-frame assembly 100 through the upper control arm rear mounting point, and the lower control arm to be installed on the sub-frame assembly 100 through the lower control arm rear mounting point, so as to make the connection between the control arm and the sub-frame assembly 100 more firmly.

[0035] Among them, Figure 1 and Figure 2 As shown, the rear support 33 of the control arm includes: a main support 331 and a closing piece 332. The rear mounting point of the upper control arm and the lower control arm mounting point are arranged on the main support 331. The main support 331 is formed with a mounting groove, and the mounting groove is located between the rear mounting point of the upper control arm and the lower control arm mounting point. The longitudinal beam 10 passes through the mounting groove, and the closing piece 332 is arranged at the notch of the mounting groove.

[0036] The closure member 332 is located at the notch of the mounting groove, so that after the main bracket 331 is connected to the longitudinal beam 10, the closure member 332 can close the notch, thereby making the connection between the rear bracket 331 and the longitudinal beam 10 more firm.

[0037] In addition, if Figure 1-Figure 3 As shown, a curved beam section bent downward is formed in the middle of the longitudinal direction of the longitudinal beam 10, and a mounting groove is passed through the curved beam section. In other words, the longitudinal beam 10 forms a curved beam section bent downward along the longitudinal direction, and the curved beam section is bent relative to the middle part. This arrangement facilitates the curved beam section to pass through the mounting groove, thereby reducing the length of the control arm rear bracket 33, thereby improving the rigidity of the upper control arm rear mounting point and the lower control arm mounting point, and realizing the lightweight design of the subframe assembly 100. For example, the longitudinal beam 10 adopts a hydraulic pipe process, thereby facilitating the bending setting of the longitudinal beam 10 and facilitating the longitudinal beam 10 to pass through the mounting groove.

[0038] In addition, if Figure 1-Figure 3 As shown, the sub-frame assembly 100 further includes: a reinforcing crossbeam 40, each longitudinal beam 10 is provided with an upper control arm front bracket 31, a lower control arm front bracket 32 ​​and a control arm rear bracket 33, and the reinforcing crossbeam 40 is connected between two opposite control arm rear brackets 33. It can be understood that the upper control arm front bracket 31, the lower control arm front bracket 32 ​​and the control arm rear bracket 33 are provided on the left longitudinal beam 10, and the upper control arm front bracket 31, the lower control arm front bracket 32 ​​and the control arm rear bracket 33 are also provided on the right longitudinal beam 10, the left end of the reinforcing crossbeam 40 is connected to the control arm rear bracket 33 located on the left, and the right end of the reinforcing crossbeam 40 is connected to the control arm rear bracket 33 located on the right, so that the reinforcing crossbeam 40 can offset the force of the control arm, and can also reduce the damage caused by the impact force to the sub-frame assembly 100, so as to improve the structural strength and rigidity between the control arm and the longitudinal beam 10, and then the sub-frame assembly 100 can protect the driving structure.

[0039] In addition, if Figure 1-Figure 3As shown, the sub-frame assembly 100 further includes: a first reinforcing plate 50, the first reinforcing plate 50 is connected between the top of the reinforcing cross beam 40 and the control arm rear bracket 33, and a cavity is formed between the first reinforcing plate 50, the reinforcing cross beam 40 and the control arm rear bracket 33. That is, the first reinforcing plate 50 is located between the reinforcing cross beam 40 and the control arm rear bracket 33, and the first reinforcing plate 50 is arranged on the upper side of the reinforcing cross beam 40 and one side of the control arm rear bracket 33, so that the first reinforcing plate 50 can increase the stress between the reinforcing cross beam 40 and the control arm rear bracket 33, and a cavity is formed between the first reinforcing plate 50, the reinforcing cross beam 40 and the control arm rear bracket 33, so that the connection strength between the reinforcing cross beam 40 and the control arm rear bracket 33 can be increased, and then the overall structural strength and rigidity of the sub-frame assembly 100 can be increased.

[0040] In addition, if Figure 1-Figure 3 As shown, the sub-frame assembly 100 further includes: a second reinforcing plate 60, which is connected between the longitudinal beam 10 and the control arm rear bracket 33. It can be understood that the second reinforcing plate 60 is located between the longitudinal beam 10 and the control arm rear bracket 33, and the second reinforcing plate 60 is arranged on one side of the longitudinal beam 10 and one side of the control arm rear bracket 33, so that the first reinforcing plate 50 can increase the stress between the longitudinal beam 10 and the control arm rear bracket 33, and can also increase the connection strength between the longitudinal beam 10 and the control arm rear bracket 33, thereby improving the overall structural strength and rigidity of the sub-frame assembly 100.

[0041] In addition, Figure 1-Figure 3 As shown, the sub-frame assembly 100 further includes: a third reinforcing plate 70, the control arm rear bracket 33 is formed with an inner groove, the third reinforcing plate 70 is arranged in the inner groove, and the third reinforcing plate 70 is connected to the bottom surface of the longitudinal beam 10. In other words, the control arm rear bracket 33 forms an inner groove, and the third reinforcing plate 70 is arranged in the inner groove, so that the third reinforcing plate 70 can improve the structural strength of the control arm rear bracket 33, and the third reinforcing plate 70 is connected to the lower side of the longitudinal beam 10, so that the stress between the longitudinal beam 10 and the control arm rear bracket 33 can be increased, and the connection strength between the longitudinal beam 10 and the control arm rear bracket 33 can also be increased, thereby improving the overall structural strength and rigidity of the sub-frame assembly 100.

[0042] In particular, if Figure 1-Figure 3As shown, the upper control arm front bracket 31 is connected to the lower control arm front bracket 32, and the lower control arm front bracket 32 ​​is also connected to the cross beam 20. It can be understood that the upper control arm front bracket 31 and the lower control arm front bracket 32 ​​are connected as a whole, so that the structural strength of the upper control arm front bracket 31 and the lower control arm front bracket 32 ​​can be improved, and the lower control arm front bracket 32 ​​is connected to the top surface and the side surface of the cross beam 20, so that the stress between the cross beam 20 and the lower control arm front bracket 32 ​​can be increased, and the connection strength between the cross beam 20 and the lower control arm front bracket 32 ​​can also be increased, thereby improving the overall structural strength and rigidity of the subframe assembly 100.

[0043] The vehicle according to the utility model comprises: the subframe assembly 100 of the above embodiment. By arranging the crossbeam 20 at the front end of the longitudinal beam 10 and arranging the plurality of control arm brackets 30 at the rear side of the crossbeam 20, the longitudinal beam 10, the crossbeam 20 and the plurality of control arm brackets 30 can be connected to each other, thereby improving the overall structural strength of the subframe assembly 100, and an avoidance space is formed below the plurality of control arm brackets 30, and the avoidance space can avoid the drive structure, thereby facilitating the installation of the drive structure in the subframe assembly 100, and can also meet the space layout requirements of the rear axle electric drive system, thereby improving the performance of the vehicle.

[0044] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0045] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" 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 expressions of the above terms do not necessarily refer to the same embodiment or example.

[0047] 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 (100), characterized in that: include: longitudinal beams (10), the longitudinal beams (10) being arranged opposite to each other in the transverse direction; A cross beam (20), the cross beam (20) being connected between the two opposite longitudinal beams (10) and connected to the front ends of the longitudinal beams (10); A plurality of control arm brackets (30) are connected to the longitudinal beam (10), and a connection between the longitudinal beam (10) and the cross beam (20) is located in front of a connection between the longitudinal beam (10) and the plurality of control arm brackets (30).

2. The subframe assembly (100) according to claim 1, characterized in that: The plurality of control arm brackets (30) include: An upper control arm front bracket (31), wherein the upper control arm front bracket (31) is arranged on the longitudinal beam (10); A lower control arm front bracket (32), wherein the lower control arm front bracket (32) is arranged on the longitudinal beam (10) and is located below the upper control arm front bracket (31); A control arm rear bracket (33), wherein the control arm rear bracket (33) is arranged on the longitudinal beam (10) and is located at the rear side of the upper control arm front bracket (31) and the lower control arm front bracket (32), and the control arm rear bracket (33) is provided with an upper control arm rear mounting point and a lower control arm rear mounting point, and the upper control arm rear mounting point is located above the lower control arm mounting point.

3. The subframe assembly (100) according to claim 2, characterized in that: The control arm rear bracket (33) comprises: A main bracket (331), the upper control arm rear mounting point and the lower control arm mounting point are arranged on the main bracket (331), the main bracket (331) is formed with a mounting groove, the mounting groove is located between the upper control arm rear mounting point and the lower control arm mounting point, and the longitudinal beam (10) passes through the mounting groove; A closing piece (332), the closing piece (332) being arranged at a notch of the installation slot.

4. The subframe assembly (100) according to claim 3, characterized in that: A curved beam section bent downward is formed in the middle of the longitudinal beam (10) in the longitudinal direction, and the curved beam section passes through the installation groove.

5. The subframe assembly (100) according to claim 2, characterized in that: Also includes: A reinforcing crossbeam (40), each longitudinal beam (10) is provided with the upper control arm front bracket (31), the lower control arm front bracket (32) and the control arm rear bracket (33), and the reinforcing crossbeam (40) is connected between two opposite control arm rear brackets (33).

6. The subframe assembly (100) according to claim 5, characterized in that: Also includes: A first reinforcing plate (50), wherein the first reinforcing plate (50) is connected between the top of the reinforcing cross beam (40) and the control arm rear bracket (33), and a cavity is formed between the first reinforcing plate (50), the reinforcing cross beam (40) and the control arm rear bracket (33).

7. The subframe assembly (100) according to claim 2, characterized in that: Also includes: A second reinforcing plate (60), wherein the second reinforcing plate (60) is connected between the longitudinal beam (10) and the control arm rear bracket (33).

8. The subframe assembly (100) according to claim 2, characterized in that: Also includes: A third reinforcing plate (70), the control arm rear bracket (33) is formed with an inner groove, the third reinforcing plate (70) is arranged in the inner groove, and the third reinforcing plate (70) is connected to the bottom surface of the longitudinal beam (10).

9. The subframe assembly (100) according to claim 2, characterized in that: The upper control arm front bracket (31) is connected to the lower control arm front bracket (32); and / or The lower control arm front bracket (32) is also connected to the crossbeam (20).

10. A vehicle, characterized in that: include: The subframe assembly (100) according to any one of claims 1 to 9.

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