Rear auxiliary frame and vehicle

Abstract

The utility model discloses a rear sub-frame and a vehicle. The rear sub-frame comprises at least one frame cross beam, at least one rear sub-frame and at least one rear sub-frame, the two vehicle frame longitudinal beams are distributed in the transverse direction of the vehicle at intervals, and at least one vehicle frame cross beam is connected between the two vehicle frame longitudinal beams; wherein an electric drive containing space is formed between the two frame longitudinal beams, each frame longitudinal beam is provided with an avoiding penetrating hole penetrating through the frame longitudinal beam in the transverse direction of the vehicle, the avoiding penetrating holes are communicated with the electric drive containing space, and the avoiding penetrating holes are used for allowing a driving shaft of an electric drive assembly to penetrate through. According to the rear auxiliary frame, the electric drive containing space is arranged between the two frame longitudinal beams, installation of the electric drive assembly can be achieved, and each frame longitudinal beam is provided with the avoiding penetrating hole penetrating in the transverse direction of the vehicle, so that a driving shaft of the electric drive assembly can stretch out of the two frame longitudinal beams in the transverse direction and is connected with a wheel axle, and the electric drive assembly can be installed on the rear auxiliary frame. Therefore, the rotation of the rear wheel is realized.

Description

Technical Field

[0001] This utility model relates to the field of vehicle manufacturing technology, and in particular to a rear subframe and a vehicle having the rear subframe. Background Technology

[0002] The rear subframe, as an important component of the vehicle, plays a role in bearing the weight of the vehicle body and transmitting forces. The rear subframe includes frame crossbeams and frame longitudinal beams. The frame longitudinal beams extend longitudinally along the vehicle. When installing the rear subframe, the frame longitudinal beams are prone to interference with the drive shaft of the electric drive assembly that extends laterally along the vehicle, indicating room for improvement. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a rear subframe, which can realize the installation of an electric drive assembly, and allows the drive shaft of the electric drive assembly to extend laterally from two frame longitudinal beams and be connected to the wheel axles respectively, so as to realize the rotation of the rear wheels.

[0004] According to an embodiment of the present invention, the rear subframe includes: at least one frame crossbeam; two frame longitudinal beams, the two frame longitudinal beams being spaced apart laterally along the vehicle, and at least one frame crossbeam being connected between the two frame longitudinal beams; wherein, an electric drive housing space is provided between the two frame longitudinal beams, each frame longitudinal beam having a clearance through hole extending laterally along the vehicle, the clearance through hole communicating with the electric drive housing space, and the clearance through hole being used to pass through the drive shaft of the electric drive assembly.

[0005] According to the rear subframe of this utility model embodiment, an electric drive housing space can be provided between the two frame longitudinal beams to realize the installation of the electric drive assembly. Each frame longitudinal beam is provided with a clearance hole that runs through the vehicle laterally. In this way, the drive shaft of the electric drive assembly can extend laterally from the two frame longitudinal beams and be connected to the wheel axle respectively to realize the rotation of the rear wheel.

[0006] According to some embodiments of the present invention, in the rear subframe, at least a portion of the longitudinal beam of the frame is constructed as a through-beam structure, the through-beam structure including an upper arched portion and a lower arched portion, the upper arched portion being located above the lower arched portion, and the clearance through-hole being formed between the upper arched portion and the lower arched portion.

[0007] According to some embodiments of the present invention, the rear subframe of the frame has a height in the vertical direction of the vehicle that gradually decreases from the through structure towards the front and from the through structure towards the rear.

[0008] According to some embodiments of the present invention, in the rear subframe, the top of the upper arched portion is higher than the top surface of the frame crossbeam;

[0009] And / or, the bottom of the lower arch is lower than the bottom surface of the frame crossbeam.

[0010] According to some embodiments of the present invention, in the rear subframe, the clearance holes of the two frame longitudinal beams are distributed opposite each other in the transverse direction of the vehicle and are symmetrically connected to both sides of the electric drive housing space.

[0011] According to some embodiments of the present invention, the rear subframe has two crossbeams, namely a front crossbeam and a rear crossbeam. The front crossbeam and the rear crossbeam are spaced apart in the front-rear direction. The two longitudinal beams of the frame are spaced apart and connected between the front crossbeam and the rear crossbeam to jointly define the electric drive housing space.

[0012] According to some embodiments of the present invention, in the rear subframe, the distance between the clearance perforation and the front crossbeam is smaller than the distance between the clearance perforation and the rear crossbeam.

[0013] According to some embodiments of the present invention, the rear subframe of the front crossbeam and at least one of the two frame longitudinal beams are provided with motor mounting points.

[0014] According to some embodiments of the present utility model, the rear subframe has a front upper control arm bracket on the upper side of the end of the front crossbeam and a front lower control arm bracket on the lower side of the end, and the front upper control arm bracket and / or the front lower control arm bracket are connected to the front end of the longitudinal beam of the frame.

[0015] And / or, the upper end of the rear crossbeam is provided with a rear upper control arm bracket and the lower end of the rear crossbeam is provided with a rear lower control arm bracket, and the rear upper control arm bracket and / or the rear lower control arm bracket are connected to the rear end of the vehicle frame longitudinal beam.

[0016] This utility model also proposes a vehicle.

[0017] The vehicle according to the present invention includes the rear subframe of any of the above embodiments.

[0018] The vehicle and the aforementioned rear subframe have the same advantages over the prior art, which will not be repeated here.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1This is a schematic diagram of the rear subframe structure according to an embodiment of the present utility model. Figure 1 ;

[0022] Figure 2 This is a top view of the rear subframe according to an embodiment of the present utility model.

[0023] Figure label:

[0024] Rear subframe 100,

[0025] Frame crossbeam 1, front crossbeam 11, rear crossbeam 12, mounting position 13, frame longitudinal beam 2, electric drive housing space 21, clearance perforation 22, through structure 23, upper arch 231, lower arch 232, motor suspension mounting point 24, front upper control arm bracket 3, front lower control arm bracket 4, rear upper control arm bracket 5, and rear lower control arm bracket 6. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0027] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Unless otherwise specified, the front-back direction in this application refers to the longitudinal direction of the vehicle, i.e., the X direction; the left-right direction refers to the lateral direction of the vehicle, i.e., the Y direction; and the up-down direction refers to the vertical direction of the vehicle, i.e., the Z direction.

[0030] The following is for reference. Figures 1-2 According to the embodiment of the present utility model, the rear subframe 100 can be equipped with an electric drive housing space 21 between two frame longitudinal beams 2, which can realize the installation of the electric drive assembly. Each frame longitudinal beam 2 is provided with a clearance hole 22 that runs through the vehicle laterally. In this way, the drive shaft of the electric drive assembly can extend laterally from the two frame longitudinal beams 2 and be connected to the wheel axle respectively to realize the rotation of the rear wheel.

[0031] like Figures 1-2 As shown, a rear subframe 100 according to an embodiment of the present invention includes: a frame crossbeam 1 and a frame longitudinal beam 2.

[0032] Two frame longitudinal beams 2 are distributed at intervals along the transverse direction of the vehicle, and at least one frame crossbeam 1 is connected between the two frame longitudinal beams 2.

[0033] Specifically, there is at least one frame crossbeam 1, meaning there can be one, two, three, etc. There are also two frame longitudinal beams 2, extending longitudinally along the vehicle to transmit and dissipate longitudinal forces. These two longitudinal beams 2 are spaced apart laterally along the vehicle. At least one frame crossbeam 1 can be configured to extend laterally along the vehicle to transmit and dissipate lateral forces. At least one frame crossbeam 1 connects to the two frame longitudinal beams 2, enabling the connection of the rear subframe 100. Furthermore, at least one frame crossbeam 1 supports the two frame longitudinal beams 2, and through their interaction, the overall structural strength of the rear subframe 100 is improved.

[0034] The rear subframe 100 is a crucial chassis component of the vehicle. Located at the rear of the vehicle, it securely anchors internal and rear components to the chassis, ensuring stability during vehicle operation. Furthermore, in the event of a collision, the external force is transmitted and dispersed along the two longitudinal beams 2 and cross beams 1 of the rear subframe 100, reducing deformation and maintaining vehicle stability and safety.

[0035] Furthermore, the two transverse ends of the frame crossbeam 1 are welded to the inner sides of the two frame longitudinal beams 2 respectively, resulting in high welding strength and improving the overall strength of the rear subframe 100. The two transverse ends of the frame crossbeam 1 can also be connected to the two frame longitudinal beams 2 respectively via bolts or other connecting components.

[0036] Among them, an electric drive housing space 21 is provided between the two frame longitudinal beams 2. Each frame longitudinal beam 2 is formed with a clearance through hole 22 that runs through the vehicle laterally. The clearance through hole 22 is connected to the electric drive housing space 21 and is used to pass through the drive shaft of the electric drive assembly.

[0037] Specifically, the rear subframe 100 serves as a mounting platform for the vehicle's rear suspension system, powertrain system, and some body components. Two longitudinal beams 2 are spaced apart laterally along the vehicle to form an electric drive housing 21, which houses the electric drive assembly. Each longitudinal beam 2 has a clearance hole 22 to allow passage of the electric drive assembly's drive shaft. The clearance hole 22 extends laterally along the vehicle and connects to the electric drive housing 21, allowing the drive shaft of the electric drive assembly within the housing 21 to extend laterally from the clearance hole 22, thus facilitating the arrangement of the electric drive assembly. Therefore, the clearance hole 22 prevents interference between the electric drive assembly's drive shaft and the longitudinal beams 2, thereby improving the stability and safety of the electric drive assembly's operation.

[0038] The electric drive assembly serves as the driving source and may include a drive motor and a reduction gear structure. Power is output through the cooperation of the drive motor and reduction gear structure. The electric drive assembly is installed within the electric drive housing 21 and has two drive shafts that extend laterally out of the electric drive housing 21. Each drive shaft can be connected to one of the two wheel axles of the vehicle, thus driving the wheels to rotate.

[0039] According to the rear subframe 100 of this utility model embodiment, an electric drive housing space 21 is provided between the two frame longitudinal beams 2 to realize the installation of the electric drive assembly. Each frame longitudinal beam 2 is provided with a clearance through hole 22 that runs through the vehicle laterally. In this way, the drive shaft of the electric drive assembly can extend laterally from the two frame longitudinal beams 2 and be connected to the wheel axle respectively to realize the rotation of the rear wheel.

[0040] In some embodiments, at least a portion of the frame longitudinal beam 2 is configured as a through structure 23, which includes an upper arch 231 and a lower arch 232, with the upper arch 231 located above the lower arch 232, and a clearance perforation 22 formed between the upper arch 231 and the lower arch 232.

[0041] Specifically, by setting at least a portion of the frame longitudinal beam 2 as a through structure 23, at least a portion of the frame longitudinal beam 2 is used for the through-running of the drive shaft of the electric drive assembly, and the remaining portion of the frame longitudinal beam 2 is used for connection with other structures, and the remaining portion can maintain the structural strength of the frame longitudinal beam 2, so as to improve the overall strength of the rear subframe 100.

[0042] The through-structure 23 includes an upper arched portion 231 and a lower arched portion 232 connected together. The upper arched portion 231 is connected to the upper side of the lower arched portion 232. The upper arched portion 231 and the lower arched portion 232 are curved away from each other in the longitudinal direction of the vehicle, forming an upper arched portion 231 that arches upwards and a lower arched portion 232 that arches downwards. A clearance through-hole 22 is provided between the upper arched portion 231 and the lower arched portion 232 to allow the drive shaft of the electric drive assembly to pass through. The clearance through-hole 22 can be located at the center of the upper arched portion 231 and the lower arched portion 232 to ensure the strength of the through-structure 23 at the clearance through-hole 22. The clearance through-hole 22 can be constructed as a circular hole, an elliptical hole, etc.

[0043] Therefore, by setting the through-hole structure 23 as a combination of the upper arched part 231 and the lower arched part 232, the structural area of ​​the through-hole structure 23 relative to other parts of the frame longitudinal beam 2 is increased, so as to ensure the strength of the through-hole structure 23. In addition, the through-hole 22 can be set to allow the drive shaft of the electric drive assembly to pass through. Through the through-hole structure 23 with high structural strength, the reliable installation of the electric drive assembly can be achieved.

[0044] In some embodiments, the height of the frame longitudinal beam 2 in the vertical direction of the vehicle is set to gradually decrease from the front of the through structure 23 and gradually decrease from the rear of the through structure 23.

[0045] Specifically, such as Figure 1 As shown, in the vertical direction of the vehicle, the vertical height of the longitudinal beam 2 at the front and rear of the through-structure 23 is less than the vertical height of the through-structure 23. This maximizes the strength of the through-structure 23 and satisfies the strength requirements of the longitudinal beam 2 at the front and rear of the through-structure 23. Furthermore, the vertical height of the longitudinal beam 2 gradually decreases from the through-structure 23 forward, making the connection of the longitudinal beam 2 from the through-structure 23 forward smoother. Similarly, the vertical height of the longitudinal beam 2 gradually decreases from the through-structure 23 backward, making the connection of the longitudinal beam 2 from the through-structure 23 backward smoother. This allows the vertical height of the longitudinal beam 2 to gradually increase and then gradually decrease from front to back, resulting in a natural transition in the overall structure. This ensures a stable change in the structural strength of the longitudinal beam 2 from front to back, thereby improving the overall strength of the longitudinal beam 2.

[0046] Furthermore, the vertical height at the through structure 23 is the largest, which maximizes the strength of the through structure 23, facilitates the setting of the avoidance hole 22 at the through structure 23, and ensures the strength requirements of the frame longitudinal beam 2.

[0047] In some embodiments, the top of the upper arch 231 is higher than the top surface of the frame crossbeam 1, which allows the top of the frame longitudinal beam 2 at the upper arch 231 to be higher than the top surface of the frame crossbeam 1, and the vertical height of the frame longitudinal beam 2 at the upper arch 231 is greater, thus improving the structural strength at the upper arch 231. Furthermore, when the vehicle is subjected to external force, the external force is transmitted along the frame crossbeam 1, and after being transmitted to the frame longitudinal beam 2, it is transmitted in an upward arc-shaped path from the upper arch 231, which is higher than the top surface of the frame crossbeam 1. Compared to a straight force transmission path, this increases the length of the force transmission path of the frame longitudinal beam 2, allowing for faster force dispersion and reducing damage to the frame longitudinal beam 2.

[0048] Furthermore, the top of the frame crossbeam 1 is positioned low, allowing for more space to be used for the installation of more structures.

[0049] In other embodiments, the bottom of the lower arch 232 is lower than the bottom surface of the frame crossbeam 1, which allows the bottom of the frame longitudinal beam 2 at the lower arch 232 to be lower than the bottom surface of the frame crossbeam 1. Furthermore, the vertical dimension of the frame longitudinal beam 2 at the lower arch 232 is larger, improving the structural strength at the lower arch 232. When the vehicle is subjected to external force, the force is transmitted along the frame crossbeam 1 and, after reaching the frame longitudinal beam 2, is transmitted downwards along an arc-shaped path from the lower arch 232, which is lower than the bottom surface of the frame crossbeam 1. Compared to a straight force transmission path, this increases the length of the force transmission path of the frame longitudinal beam 2, allowing for faster force dispersion and reducing damage to the frame longitudinal beam 2.

[0050] Furthermore, an avoidance perforation 22 is provided between the upper arched portion 231 and the lower arched portion 232. The avoidance perforation 22 can separate the upper arched portion 231 and the lower arched portion 232, so that the longitudinal beam 2 of the frame can form force transmission paths in the upper arched portion 231 and the lower arched portion 232 respectively, increasing the force transmission paths and thus improving the collision performance of the longitudinal beam 2 of the frame.

[0051] In some embodiments, the clearance holes 22 of the two frame longitudinal beams 2 are distributed opposite each other in the transverse direction of the vehicle and are symmetrically connected to both sides of the electric drive housing space 21.

[0052] Specifically, both longitudinal beams 2 of the frame are provided with clearance holes 22. The two clearance holes 22 are distributed opposite each other along the transverse direction of the vehicle, and both clearance holes 22 are connected to the two transverse ends of the electric drive housing space 21. The electric drive assembly is located in the electric drive housing space 21 and has two drive shafts. The two drive shafts of the electric drive assembly pass through the clearance holes 22 in opposite directions along the transverse direction of the vehicle. They can be symmetrically connected to the wheel axles on the left and right sides of the vehicle to drive the rotation of the left wheel and the right wheel of the vehicle respectively.

[0053] Therefore, through the above configuration, the two drive shafts of the electric drive assembly can be symmetrically distributed laterally in the vehicle, and the electric drive assembly can be symmetrically connected to the left wheel axle and the right wheel axle laterally in the vehicle. This allows the electric drive assembly to simultaneously drive the left wheel axle and the right wheel axle to rotate at the same time, thereby improving the synchronicity of the rotation of the left and right wheels, making the vehicle run more smoothly, and the installation process is simple and easy to maintain.

[0054] In some embodiments, there are two frame crossbeams 1, namely a front crossbeam 11 and a rear crossbeam 12, which are distributed at intervals along the front-rear direction. Two frame longitudinal beams 2 are connected between the front crossbeam 11 and the rear crossbeam 12 at intervals to jointly define the electric drive housing space 21.

[0055] Specifically, such as Figure 2 As shown, both the front crossbeam 11 and the rear crossbeam 12 extend laterally along the vehicle, and the front crossbeam 11 and the rear crossbeam 12 are spaced apart along the front-rear direction of the vehicle. The two frame longitudinal beams 2 are also spaced apart laterally along the vehicle. The front crossbeam 11 is connected to the front end of the two frame longitudinal beams 2, and the rear crossbeam 12 is connected to the rear end of the two frame longitudinal beams 2. In this way, the front crossbeam 11, the rear crossbeam 12, and the two frame longitudinal beams 2 can jointly define the electric drive housing space 21 for the installation of the electric drive assembly.

[0056] The front ends of the two frame longitudinal beams 2 are supported and connected by the front crossbeam 11, which can improve the structural stability of the front end of the frame longitudinal beams 2. The rear ends of the two frame longitudinal beams 2 are supported and connected by the rear crossbeam 12, which can improve the structural stability of the rear end of the frame longitudinal beams 2. This improves the structural stability of the rear subframe 100, thus providing reliable installation conditions for the electric drive assembly and facilitating the reliable installation of the suspension system structure, thereby improving the stability of vehicle operation.

[0057] In some embodiments, the distance between the clearance hole 22 and the front crossbeam 11 is smaller than the distance between the clearance hole 22 and the rear crossbeam 12.

[0058] Specifically, such as Figure 1 As shown, in the front-rear direction, the clearance hole 22 is set close to the front crossbeam 11, that is, the distance between the clearance hole 22 and the front crossbeam 11 is less than the distance between the clearance hole 22 and the rear crossbeam 12. The clearance hole 22 is located in the front area of ​​the frame longitudinal beam 2, and the clearance hole 22 is used for the drive shaft of the electric drive assembly to pass through. That is, the drive shaft of the electric drive assembly passes through the clearance hole 22 from the position of the frame longitudinal beam 2 close to the front crossbeam 11. This allows the space in the rear area of ​​the frame longitudinal beam 2 to be used for the arrangement of other structures, and the structure is compact and the layout is reasonable.

[0059] Furthermore, the avoidance perforation 22 can be set at any position in the front section of the longitudinal beam 2 from the middle position of the frame. It can be flexibly arranged according to the actual structural distribution, so as to maintain the strength requirements of the longitudinal beam 2 of the frame and not interfere with other structures.

[0060] The distance between the clearance perforation 22 and the front crossbeam 11 must not be less than the distance between the clearance perforation 22 and the rear crossbeam 12. In this way, the drive shaft of the electric drive assembly will not occupy the rear space of the frame longitudinal beam 2, thus avoiding interference with the structure at the rear of the vehicle.

[0061] In some embodiments, at least one of the front crossbeam 11 and the two frame longitudinal beams 2 is provided with a motor mounting point 24. That is, a motor mounting point 24 can be provided in one of the front crossbeam 11 and the two frame longitudinal beams 2. Specifically, a motor mounting point 24 can be provided in the front crossbeam 11, and a motor mounting point 24 can be provided in either the left frame longitudinal beam 2 or the right frame longitudinal beam 2. Alternatively, a motor mounting point 24 can be provided in both the front crossbeam 11 and the two frame longitudinal beams 2. Through the above-mentioned arrangement methods, the electric drive assembly can be installed and laid out through the motor mounting point 24. The arrangement methods are diverse and can be flexibly selected.

[0062] Specifically, in this embodiment, motor mounting points 24 are respectively provided on the front crossbeam 11 and the two frame longitudinal beams 2. The electric drive assembly can be connected to the front crossbeam 11 and the two frame longitudinal beams 2 through the motor mounting points 24, thereby enabling the electric drive assembly to be installed on the rear subframe 100. Furthermore, this arrangement allows the electric drive assembly to be installed in three different directions and positions, improving the connection strength of the electric drive assembly and ensuring stable and reliable operation.

[0063] The front crossbeam 11 and the frame longitudinal beam 2 can each be equipped with one motor mounting point 24, or two motor mounting points 24 can be provided, etc.

[0064] Furthermore, the motor mount mounting point 24 is used for press-fitting the motor mount. Press-fitting the motor mount at the motor mount mounting point 24 can be used for the installation of the electric drive assembly, which is suitable for two-wheel drive, rear-wheel drive and four-wheel drive modes. When the vehicle is in front-wheel drive mode, the motor mount is not pressed at the motor mount mounting point 24, that is, the electric drive assembly is not installed. Thus, it can be adapted to different types of vehicles and expand the scope of use.

[0065] In some embodiments, the upper end of the front crossbeam 11 is provided with a front upper control arm bracket 3 and the lower end is provided with a front lower control arm bracket 4, and the front upper control arm bracket 3 and / or the front lower control arm bracket 4 are connected to the front end of the vehicle frame longitudinal beam 2.

[0066] In other words, the upper front control arm bracket 3 and / or the lower front control arm bracket 4 can be respectively installed on the upper and lower sides of the front end of the front crossbeam 11, or the upper front control arm bracket 3 and / or the lower front control arm bracket 4 can be respectively installed on the upper and lower sides of the front end of the frame longitudinal beam 2, or one of the upper front control arm bracket 3 and / or the lower front control arm bracket 4 can be installed on the front crossbeam 11 and the other on the frame longitudinal beam 2. The installation methods are diverse and can be flexibly selected.

[0067] Specifically, the upper front control arm bracket 3 is used to install the upper front control arm, and the lower front control arm bracket 4 is used to install the lower front control arm. The upper front control arm bracket 3 can connect one end of the upper front control arm to the upper end of the rear subframe 100, and the other end of the upper front control arm can be connected to the wheel. The lower front control arm bracket 4 can connect one end of the lower front control arm to the lower end of the rear subframe 100, and the other end of the lower front control arm can be connected to the wheel. This achieves the connection between the wheel and the rear subframe 100. The upper front control arm and the lower front control arm can achieve the force transmission between the wheel and the rear subframe 100 to ensure the stable operation of the wheel.

[0068] The upper front control arm bracket 3 and the lower front control arm bracket 4 can be connected to the front crossbeam 11 or the longitudinal beam of the frame 2 by welding. Furthermore, the upper front control arm bracket 3 and the lower front control arm bracket 4 can each be provided with front connection holes for mounting the upper front control arm and the lower front control arm.

[0069] In other embodiments, the upper rear control arm bracket 5 is provided on the upper side of the end of the rear crossbeam 12 and the lower rear control arm bracket 6 is provided on the lower side of the end, and the upper rear control arm bracket 5 and / or the lower rear control arm bracket 6 are connected to the rear end of the frame longitudinal beam 2.

[0070] In other words, the upper rear control arm bracket 5 and / or the lower rear control arm bracket 6 can be respectively installed on the upper and lower sides of the rear end of the rear crossbeam 12, or the upper rear control arm bracket 5 and / or the lower rear control arm bracket 6 can be respectively installed on the upper and lower sides of the rear end of the frame longitudinal beam 2, or one of the upper rear control arm bracket 5 and / or the lower rear control arm bracket 6 can be installed on the rear crossbeam 12 and the other on the frame longitudinal beam 2. The installation methods are diverse and can be flexibly selected.

[0071] Specifically, the upper rear control arm bracket 5 is used to install the upper rear control arm, and the lower rear control arm bracket 6 is used to install the lower rear control arm. The upper rear control arm bracket 5 can connect one end of the upper rear control arm to the upper end of the rear subframe 100, and the other end of the upper rear control arm can be connected to the wheel. The lower rear control arm bracket 6 can connect one end of the lower rear control arm to the lower end of the rear subframe 100, and the other end of the lower rear control arm can be connected to the wheel. This achieves the connection between the wheel and the rear subframe 100. The upper and lower rear control arms can transmit force between the wheel and the rear subframe 100 to ensure stable wheel operation, reduce vibration during vehicle operation, and improve ride comfort.

[0072] The upper rear control arm bracket 5 and the lower rear control arm bracket 6 can be connected to the rear crossbeam 12 or the longitudinal beam 2 of the frame by welding. Furthermore, the upper rear control arm bracket 5 and the lower rear control arm bracket 6 can each be provided with rear connection holes for mounting the upper rear control arm and the lower rear control arm.

[0073] It should also be noted that the rear subframe 100 can be connected and fixed to the vehicle body structure by setting mounting positions 13 at the front and rear ends of the two frame longitudinal beams 2, or by setting mounting positions 13 at the left and right ends of the front crossbeam 11 and the rear crossbeam 12. Both of these methods can be used to connect the rear subframe 100 to the vehicle body structure.

[0074] This utility model also proposes a vehicle.

[0075] The vehicle according to the present utility model includes the rear subframe 100 of any of the above embodiments. By providing an electric drive housing space 21 between the two frame longitudinal beams 2, the electric drive assembly can be installed. Each frame longitudinal beam 2 is provided with a clearance hole 22 that runs through the vehicle laterally. In this way, the drive shaft of the electric drive assembly can extend laterally from the two frame longitudinal beams 2 and be connected to the wheel axle respectively. The wheels are connected to the rear subframe 100 through the front upper control arm bracket 3, the front lower control arm bracket 4, the rear upper control arm bracket 5, and the rear lower control arm bracket 6 to achieve stable rotation of the rear wheels.

[0076] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0077] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A rear subframe, characterized in that, include: At least one frame crossbeam; Two frame longitudinal beams are distributed laterally along the vehicle, and at least one frame crossbeam is connected between the two frame longitudinal beams; An electric drive housing space is provided between the two frame longitudinal beams. Each frame longitudinal beam is formed with a clearance through hole that runs through the vehicle laterally. The clearance through hole is connected to the electric drive housing space and is used to pass through the drive shaft of the electric drive assembly.

2. The rear subframe according to claim 1, characterized in that, At least a portion of the longitudinal beam of the frame is constructed as a through-beam structure, which includes an upper arched portion and a lower arched portion. The upper arched portion is located above the lower arched portion, and the clearance perforation is formed between the upper arched portion and the lower arched portion.

3. The rear subframe according to claim 2, characterized in that, The height of the longitudinal beam of the vehicle frame in the vertical direction is set to gradually decrease from the front of the through structure and gradually decrease from the rear of the through structure.

4. The rear subframe according to claim 2, characterized in that, The top of the upper arch is higher than the top surface of the frame crossbeam; And / or, the bottom of the lower arch is lower than the bottom surface of the frame crossbeam.

5. The rear subframe according to claim 1, characterized in that, The two clearance holes of the frame longitudinal beams are distributed opposite each other in the transverse direction of the vehicle and are symmetrically connected to both sides of the electric drive housing space.

6. The rear subframe according to any one of claims 1-5, characterized in that, The frame has two crossbeams, namely a front crossbeam and a rear crossbeam. The front crossbeam and the rear crossbeam are spaced apart in the front-rear direction. The two frame longitudinal beams are spaced apart and connected between the front crossbeam and the rear crossbeam to jointly define the electric drive housing space.

7. The rear subframe according to claim 6, characterized in that, The distance between the clearance perforation and the front crossbeam is less than the distance between the clearance perforation and the rear crossbeam.

8. The rear subframe according to claim 6, characterized in that, The front crossbeam and at least one of the two frame longitudinal beams are provided with motor mounting points.

9. The rear subframe according to claim 6, characterized in that, The upper end of the front crossbeam is provided with a front upper control arm bracket and the lower end of the front lower control arm bracket, and the front upper control arm bracket and / or the front lower control arm bracket are connected to the front end of the vehicle frame longitudinal beam. And / or, the upper end of the rear crossbeam is provided with a rear upper control arm bracket and the lower end of the rear crossbeam is provided with a rear lower control arm bracket, and the rear upper control arm bracket and / or the rear lower control arm bracket are connected to the rear end of the vehicle frame longitudinal beam.

10. A vehicle, characterized in that, Includes the rear subframe as described in any one of claims 1-9.

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