Auxiliary frame assembly and vehicle

Abstract

The utility model discloses an auxiliary frame assembly and a vehicle, and the auxiliary frame assembly comprises two longitudinal beams which are arranged at an interval in the left-right direction; the rear cross beam extends in the left-right direction, and the two ends of the rear cross beam are connected with the two longitudinal beams respectively; the reinforcing plate is arranged between at least one longitudinal beam and the rear cross beam; the rear suspension framework is suitable for being connected with a power assembly, the rear suspension framework is provided with a first mounting part, a second mounting part and a third mounting part, the first mounting part is connected with the rear cross beam, the second mounting part is connected with the longitudinal beam, and the third mounting part is connected with the reinforcing plate. Therefore, the first mounting part, the second mounting part and the third mounting part are sequentially connected to form a triangle, so that the structural strength and rigidity of the first mounting part, the second mounting part and the third mounting part can be improved, and the connection of the rear suspension framework, the rear cross beam, the longitudinal beam and the reinforcing plate is more stable and reliable; and vibration transmission among the rear suspension framework, the rear cross beam, the longitudinal beam and the reinforcing plate can be reduced.

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 development of technology and the improvement of users' living standards, vehicles have become an essential means of transportation for people. A suspension system is provided in the vehicle, and the installation stability of the suspension system has become an important factor affecting the vibration damping performance of the vehicle.

[0003] In the related art, the installation position of the vehicle suspension system on the subframe is not stably connected to the subframe, and it is easy to loosen, resulting in a reduction in the vibration damping performance of the suspension system for the vehicle and a decrease in the stability and reliability of the vehicle. Summary of the Utility Model

[0004] The utility model aims to at least solve one of the technical problems existing in the prior art. To this end, an object of the utility model is to provide a subframe assembly, and the structure of the subframe assembly is more stable and reliable.

[0005] The utility model further provides a vehicle.

[0006] The subframe assembly according to the utility model includes: longitudinal beams, the longitudinal beams extend in the front-rear direction and there are two of them, and the two longitudinal beams are spaced apart in the left-right direction; a rear cross beam, the rear cross beam extends in the left-right direction and both ends are respectively connected to the two longitudinal beams; a reinforcing plate, the reinforcing plate is arranged between at least one of the longitudinal beams and the rear cross beam; a rear suspension skeleton, the rear suspension skeleton is adapted to be connected to the power assembly, the rear suspension skeleton has a first mounting portion, a second mounting portion and a third mounting portion, the first mounting portion is connected to the rear cross beam, the second mounting portion is connected to the longitudinal beam, the third mounting portion is connected to the reinforcing plate, and the first mounting portion, the second mounting portion and the third mounting portion are sequentially connected to form a triangle.

[0007] Thus, the first mounting portion, the second mounting portion and the third mounting portion are sequentially connected to form a triangle, which can not only improve the structural strength and stiffness of the first mounting portion, the second mounting portion and the third mounting portion, make the connection between the rear suspension skeleton and the rear cross beam, the longitudinal beam and the reinforcing plate more stable and reliable, but also reduce the vibration transmission between the rear suspension skeleton and the rear cross beam, the longitudinal beam and the reinforcing plate.

[0008] In some examples of the utility model, the rear suspension skeleton includes a rear skeleton main body and a connecting plate, the connecting plate is triangular, and the three end corners of the connecting plate respectively form the first mounting portion, the second mounting portion and the third mounting portion, and the rear skeleton main body is arranged on the connecting plate and is adapted to be connected to the power assembly.

[0009] In some examples of the present utility model, the rear frame main body includes a rear main member and a rear lining kit. The rear main member and the connecting plate are integrally formed structural members, and the rear lining kit is disposed within the rear main member and is in interference fit with the rear main member.

[0010] In some examples of the present utility model, the reinforcing plate and the rear suspension frame are oppositely disposed in the up-down direction. There are two reinforcing plates, and the two reinforcing plates are spaced apart and are respectively disposed between the two longitudinal beams and the rear cross beam. There are two rear suspension frames, and the two rear suspension frames and the two reinforcing plates correspond to each other one by one.

[0011] In some examples of the present utility model, it further includes a front cross beam, a control arm mounting bracket, a front suspension mounting bracket, and a front suspension frame. The front cross beam extends in the left-right direction and is located between the two longitudinal beams. The front cross beam is spaced in front of the rear cross beam. The control arm mounting bracket is disposed between the longitudinal beam and the front cross beam. The front suspension mounting bracket is respectively connected to the control arm mounting bracket, the front cross beam, and the longitudinal beam. The front suspension frame is connected to the front suspension mounting bracket, and the front suspension frame is adapted to be connected to the power assembly.

[0012] In some examples of the present utility model, there are two control arm mounting brackets, and the two control arm mounting brackets respectively correspond to the two longitudinal beams. There are two front suspension mounting brackets, and the two front suspension mounting brackets and the two control arm mounting brackets correspond to each other. The front suspension frame extends in the left-right direction, and the two ends of the front suspension frame in the left-right direction are respectively connected to the two front suspension mounting brackets.

[0013] In some examples of the present utility model, the front suspension frame includes a suspension cross beam and a front frame main body. The suspension cross beam extends in the left-right direction and the two ends are respectively connected to the two front suspension mounting brackets. The front frame main body is disposed on the suspension cross beam and there are two of them. The two front frame main bodies are spaced apart left and right. The front frame main body is adapted to be connected to the power assembly; the front frame main body includes a front main member and a front lining kit. The front main member and the suspension cross beam are integrally formed structural members, and the front lining kit is disposed within the front main member and is in interference fit with the front main member.

[0014] In some examples of the present utility model, the two front frame main bodies and the two rear suspension frames together form a power assembly installation area. The power assembly installation area is adapted to install the power assembly, and the power assembly installation area is an isosceles trapezoid.

[0015] In some examples of the present utility model, the front crossbeam and the suspension crossbeam are spaced apart in the front-back direction, and the front crossbeam and the suspension crossbeam are spaced apart in the up-down direction.

[0016] A vehicle according to an embodiment of the present utility model includes: the subframe assembly described above; and a power assembly, wherein the power assembly is connected to the subframe assembly.

[0017] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0018] The above and / or additional aspects and advantages of the present utility model will become apparent and be easily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0019] Figure 1 is a partial schematic view of a vehicle according to an embodiment of the present utility model;

[0020] Figure 2 is a partial schematic view of a vehicle according to an embodiment of the present utility model;

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

[0022] Figure 4 is a partial schematic view of a subframe assembly according to an embodiment of the present utility model;

[0023] Figure 5 is a schematic view of a subframe assembly according to an embodiment of the present utility model;

[0024] Figure 6 is a schematic view of a subframe assembly according to an embodiment of the present utility model;

[0025] Figure 7 is a schematic view of a front suspension skeleton according to an embodiment of the present utility model;

[0026] Figure 8 is a schematic view of a front suspension skeleton according to an embodiment of the present utility model;

[0027] Figure 9 is a schematic view of a rear suspension skeleton according to an embodiment of the present utility model;

[0028] Figure 10 is a schematic view of a rear suspension skeleton according to an embodiment of the present utility model.

[0029] Reference Signs:

[0030] 100, subframe assembly; 1000, vehicle;

[0031] 10. Longitudinal beam; 101. Mounting portion for mount

[0032] 20. Rear cross beam; 201. Avoidance portion

[0033] 30. Reinforcement plate

[0034] 40. Rear mount skeleton; 401. First mounting portion; 402. Second mounting portion; 403. Third mounting portion; 404. Rear skeleton main body; 405. Connecting plate; 4041. Rear main member; 4042. Rear lining kit

[0035] 50. Power assembly

[0036] 60. Front cross beam; 601. Avoidance groove

[0037] 70. Control arm mounting bracket

[0038] 80. Front mount mounting bracket

[0039] 90. Front mount skeleton; 901. Mount cross beam; 902. Front skeleton main body; 9021. Front main member; 9022. Front lining kit Detailed implementation manner

[0040] The embodiments of the present utility model will be described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present utility model will be described in detail below.

[0041] Below, refer to Figures 1 - 10 Describe the subframe assembly 100 according to the embodiments of the present utility model. The subframe assembly 100 can be applied to a vehicle 1000.

[0042] Combined with Figures 1 - 10 As shown, the subframe assembly 100 according to the present utility model mainly includes: a longitudinal beam 10, a rear cross beam 20, a reinforcement plate 30, and a rear mount skeleton 40. Among them, the longitudinal beam 10 extends in the front-rear direction and there are two of them. The two longitudinal beams 10 are spaced apart in the left-right direction. The longitudinal beam 10 can not only provide reliable support and mounting points for other components, but also be used to buffer road surface excitation and collision energy, can play a certain protective role for the components installed on or around the longitudinal beam 10, and can ensure the stability and reliability of the vehicle 1000.

[0043] Further, the rear crossbeam 20 extends in the left-right direction and is respectively connected to the two longitudinal beams 10 at both ends. After the rear crossbeam 20 and the two longitudinal beams 10 are connected, a basic frame structure can be formed. The longitudinal beams 10 mainly bear tensile force, pressure, bending moment, etc. in the front-rear direction, while the rear crossbeam 20 mainly bears the load in the left-right direction. The combined setting of the rear crossbeam 20 and the two longitudinal beams 10 can ensure the structural strength and reliability of the vehicle 1000. In addition, the rear crossbeam 20 can also provide reliable support and mounting points for other components.

[0044] Further, the reinforcing plate 30 is disposed between at least one longitudinal beam 10 and the rear crossbeam 20, which can improve the connection strength between the longitudinal beam 10 and the rear crossbeam 20, prevent deformation or fracture at the connection between the longitudinal beam 10 and the rear crossbeam 20, and improve the torsional resistance and structural strength of the vehicle body.

[0045] Further, the rear suspension skeleton 40 is adapted to be connected to the powertrain 50. The rear suspension skeleton 40 has a first mounting portion 401, a second mounting portion 402, and a third mounting portion 403. The first mounting portion 401 is connected to the rear crossbeam 20, the second mounting portion 402 is connected to the longitudinal beam 10, and the third mounting portion 403 is connected to the reinforcing plate 30. Specifically, the load at the rear suspension skeleton 40 can be relatively evenly distributed to the rear crossbeam 20, the longitudinal beam 10, and the reinforcing plate 30 through the first mounting portion 401, the second mounting portion 402, and the third mounting portion 403, preventing deformation or fracture of the rear crossbeam 20, the longitudinal beam 10, and the reinforcing plate 30 due to stress concentration, and further improving the connection strength between the rear suspension skeleton 40 and the rear crossbeam 20, the longitudinal beam 10, and the reinforcing plate 30. In addition, the settings of the first mounting portion 401, the second mounting portion 402, and the third mounting portion 403 facilitate the positioning and installation of the rear suspension skeleton 40, and can more accurately and quickly complete the installation of the rear suspension skeleton 40.

[0046] Further, the first mounting portion 401, the second mounting portion 402, and the third mounting portion 403 are sequentially connected to form a triangle. Since a triangle has stability, such a setting can not only improve the structural strength and stiffness of the first mounting portion 401, the second mounting portion 402, and the third mounting portion 403, make the connection between the rear suspension skeleton 40 and the rear crossbeam 20, the longitudinal beam 10, and the reinforcing plate more stable and reliable, but also reduce the vibration transmission between the rear suspension skeleton 40 and the rear crossbeam 20, the longitudinal beam 10, and the reinforcing plate 30.

[0047] In some embodiments of the present utility model, an avoidance portion 201 is provided on the rear crossbeam 20, which can be used to avoid the powertrain 50 or other components, and can simplify and facilitate the installation of the powertrain 50 or other components while ensuring the structural strength of the vehicle 1000.

[0048] Combined Figure 1 、Figure 3 and Figure 9 As shown in Figure 9 , the rear suspension skeleton 40 includes a rear skeleton main body 404 and a connecting plate 405. The connecting plate 405 is triangular. The three end corners of the connecting plate 405 respectively form a first mounting portion 401, a second mounting portion 402, and a third mounting portion 403. The rear skeleton main body 404 is disposed on the connecting plate 405 and is adapted to be connected to the power assembly 50.

[0049] Specifically, a triangle has stability. By setting the connecting plate 405 as a triangle, the structural strength of the connection part can be improved, preventing the connection part from deforming or breaking when stressed, and the reliability of the connection between the connecting plate 405 and other components can be enhanced.

[0050] Furthermore, the three end corners of the connecting plate 405 respectively form a first mounting portion 401, a second mounting portion 402, and a third mounting portion 403. The first mounting portion 401 is connected to the rear crossbeam 20, the second mounting portion 402 is connected to the longitudinal beam 10, and the third mounting portion 403 is connected to the reinforcing plate 30. The rear skeleton main body 404 is disposed on the connecting plate 405 and is adapted to be connected to the power assembly 50. In this way, the rationality of the structural arrangement of the rear suspension skeleton 40 can be ensured, and the connection between the rear suspension skeleton 40 and other components can be realized through the rear skeleton main body 404 and the connecting plate 405, ensuring the stability and reliability of the structural arrangement of the vehicle 1000.

[0051] In some embodiments of the present utility model, the rear suspension skeleton 40 can be made of aluminum alloy or resin material.

[0052] In some embodiments of the present utility model, the connection between the rear skeleton main body 404 and the connecting plate 405 can adopt a connection method of screwing or welding, or the rear skeleton main body 404 can be directly disposed on the connecting plate 405 by integral molding.

[0053] Combined Figure 1 、 Figure 3 and Figure 10 As shown in Figure 1 , Figure 3 , and Figure 10 , the rear skeleton main body 404 includes a rear main member 4041 and a rear lining kit 4042. The rear main member 4041 and the connecting plate 405 are integrally formed structural members. This can not only simplify the structure of the rear skeleton main body 404, make the structure of the rear skeleton main body 404 more compact, but also reduce the number of components on the rear skeleton main body 404, reduce the weight of the rear skeleton main body 404. In addition, the integrally formed structural member can avoid the problem of local stress concentration and improve the integrity of the structure of the rear skeleton main body 404.

[0054] Furthermore, the rear lining kit 4042 is disposed within the rear main body 4041 and is in interference fit with the rear main body 4041. This not only ensures the rationality of the structure of the rear frame main body 404, but also generates sufficient fastening force between the rear main body 4041 and the rear lining kit 4042, making the connection and cooperation between the rear main body 4041 and the rear lining kit 4042 more tightly and effectively. It can prevent the rear lining kit 4042 from loosening and detaching from the rear main body 4041, and enable the rear frame main body 404 to withstand a certain load and impact force.

[0055] Still further, the rear main body 4041 is adapted to be connected to the connecting plate 405 of the rear suspension frame 40, and the rear lining kit 4042 is adapted to be connected to the power assembly 50. With such an arrangement, not only can the structural strength and stiffness of the rear suspension frame 40 be ensured, but also the connection between the rear frame main body 404 and the connecting plate 405 and the power assembly 50 can be made more stable and reliable.

[0056] In some embodiments of the present invention, a welding connection method can also be adopted between the rear main body 4041 and the connecting plate 405. This not only ensures the strength and stability of the connection between the rear main body 4041 and the connecting plate 405, but also reduces the manufacturing cost of the vehicle 1000 structure.

[0057] Combined with Figure 1 、 Figure 3 and Figure 4 As shown, the reinforcing plates 30 and the rear suspension frames 40 are disposed opposite to each other in the vertical direction. There are two reinforcing plates 30, and the two reinforcing plates 30 are spaced apart and are respectively disposed between the two longitudinal beams 10 and the rear cross beam 20. There are two rear suspension frames 40, and the two rear suspension frames 40 and the two reinforcing plates 30 correspond to each other one by one.

[0058] Specifically, by disposing the two reinforcing plates 30 spaced apart and respectively between the two longitudinal beams 10 and the rear cross beam 20, the connection strength between the two longitudinal beams 10 and the rear cross beam 20 can be improved, and the connection between the two longitudinal beams 10 and the rear cross beam 20 can be made more stable to prevent connection failure.

[0059] Furthermore, the two rear suspension frames 40 and the two reinforcing plates 30 correspond to each other in structure and position. By setting the two rear suspension frames 40 and the two reinforcing plates 30 corresponding to each other one by one, not only can the stability of the rear suspension frame 40 be improved, but also the rationality and reliability of the structure of the subframe assembly 100 can be ensured.

[0060] Combined with Figure 1 、 Figure 3 and Figure 6As shown, the subframe assembly 100 further includes a front cross member 60, a control arm mounting bracket 70, a front mount mounting bracket 80, and a front mount skeleton 90. The front cross member 60 extends in the left-right direction and is located between the two longitudinal beams 10. The front cross member 60 is spaced in front of the rear cross member 20. The control arm mounting bracket 70 is disposed between the longitudinal beam 10 and the front cross member 60. The front mount mounting bracket 80 is connected to the control arm mounting bracket 70, the front cross member 60, and the longitudinal beam 10 respectively. The front mount skeleton 90 is connected to the front mount mounting bracket 80, and the front mount skeleton 90 is adapted to be connected to the powertrain 50.

[0061] Specifically, by installing the front mount mounting bracket 80 at the lap joint of the control arm mounting bracket 70, the front cross member 60, and the longitudinal beam 10, not only can the structural strength and stiffness of the subframe assembly 100 be improved, but also the vibration transmission can be reduced.

[0062] Furthermore, the front mount skeleton 90 is connected to the front mount mounting bracket 80, and the front mount skeleton 90 is adapted to be connected to the powertrain 50. This can not only ensure the normal working performance of the vehicle 1000, but also ensure the stability and reliability of the structure of the vehicle 1000.

[0063] In some embodiments of the present invention, an avoidance groove 601 is provided on the front cross member 60, which can be used for the installation design of avoiding other components, and can simplify and facilitate the installation of other related components while ensuring the structural strength of the vehicle 1000.

[0064] In some embodiments of the present invention, the connections between the front cross member 60, the control arm mounting bracket 70, the front mount mounting bracket 80, and the front mount skeleton 90 can adopt a screwed or welded connection method, and the connection between the front mount skeleton 90 and the powertrain 50 can adopt a screwed connection method.

[0065] In some embodiments of the present invention, the front cross member 60, the control arm mounting bracket 70, and the front mount mounting bracket 80 can be made of sheet metal material, and the front mount skeleton 90 can be made of aluminum alloy material by casting and is integrally formed.

[0066] Combined with Figure 1 、 Figure 3 and Figure 6 As shown, there are two control arm mounting brackets 70, and the two control arm mounting brackets 70 respectively correspond to the two longitudinal beams 10. There are two front mount mounting brackets 80, and the two front mount mounting brackets 80 correspond to the two control arm mounting brackets 70. The front mount skeleton 90 extends in the left-right direction, and both ends of the front mount skeleton 90 in the left-right direction are respectively connected to the two front mount mounting brackets 80.

[0067] Specifically, the two control arm mounting brackets 70 respectively correspond to the two longitudinal beams 10. This can not only form a more stable support structure, but also the control arm mounting brackets 70 can provide an accurate mounting position for the control arms, ensuring that the control arms can be accurately connected to the vehicle body and the mounting system according to the design requirements, thereby ensuring the normal working performance of the mounting system.

[0068] Furthermore, the two front mounting brackets 80 and the two control arm mounting brackets 70 correspond to each other. This can not only improve the structural strength of the subframe assembly 100, but also provide an accurate mounting position for the front mounting skeleton 90 of the mounting system, facilitating the subsequent installation of the mounting system and ensuring the rationality and reliability of the subframe structure.

[0069] Furthermore, the front mounting skeleton 90 extends in the left-right direction, and both ends of the front mounting skeleton 90 in the left-right direction are respectively connected to the two front mounting brackets 80. This can not only ensure the structural strength of the subframe assembly 100, but also provide an accurate mounting position for the mounting system, facilitating the installation and fixation of the mounting system and ensuring the stability and reliability of the mounting system installation.

[0070] Combined Figure 1 、 Figure 2 、 Figure 7 and Figure 8 As shown in, the front mounting skeleton 90 includes a mounting crossbeam 901 and a front skeleton body 902. The mounting crossbeam 901 extends in the left-right direction and both ends are respectively connected to the two front mounting brackets 80. The front skeleton body 902 is arranged on the mounting crossbeam 901 and there are two of them. The two front skeleton bodies 902 are spaced apart left and right, and the front skeleton body 902 is adapted to be connected to the power assembly 50. Specifically, by extending the mounting crossbeam 901 in the left-right direction and connecting both ends to the two front mounting brackets 80 respectively, the rationality and stability of the structure of the front mounting skeleton 90 can be ensured, the front mounting skeleton 90 itself can have a certain structural strength, and the front mounting skeleton 90 is not easily deformed or damaged. In addition, the front skeleton body 902 is arranged on the mounting crossbeam 901 and there are two of them. The two front skeleton bodies 902 are spaced apart left and right, and the front skeleton body 902 is adapted to be connected to the power assembly 50. Thus, through the two spaced-apart front skeleton bodies 902, not only can the connection between the front mounting skeleton 90 and the power assembly 50 be realized, effectively ensuring the stability and reliability of the connection between the front mounting skeleton 90 and the power assembly 50, but also the stability of the structure of the front mounting skeleton 90 itself can be ensured, preventing the problem of local stress concentration in the front mounting skeleton 90.

[0071] The front skeleton main body 902 includes a front main body part 9021 and a front lining kit 9022. The front main body part 9021 and the suspension crossbeam 901 are integrally formed structural parts. The front lining kit 9022 is arranged inside the front main body part 9021 and is in interference fit with the front main body part 9021. Specifically, by setting the front main body part 9021 and the suspension crossbeam 901 as integrally formed structural parts, not only can the structure of the front skeleton main body 902 be simplified, making the structure of the front skeleton main body 902 more compact, but also the number of components on the front skeleton main body 902 can be reduced, and the weight of the front skeleton main body 902 can be lowered. In addition, the integrally formed structural part can avoid the problem of local stress concentration and can enhance the integrity of the structure of the front skeleton main body 902. Further, the front lining kit 9022 is arranged inside the front main body part 9021 and is in interference fit with the front main body part 9021. In this way, not only can the rationality of the structure of the front skeleton main body 902 be ensured, but also sufficient fastening force can be generated between the front main body part 9021 and the front lining kit 9022, making the connection and cooperation between the front main body part 9021 and the front lining kit 9022 closer and more effective, preventing the front lining kit 9022 from loosening and detaching from the front main body part 9021, and enabling the front skeleton main body 902 to withstand a certain load and impact force.

[0072] In some embodiments of the present utility model, a welding connection method can also be adopted between the front main body part 9021 and the suspension crossbeam 901. In this way, not only can the connection strength and stability between the front main body part 9021 and the suspension crossbeam 901 be ensured, but also the manufacturing cost of the vehicle 1000 structure can be reduced.

[0073] Combined with Figure 1 、 Figure 2 and Figure 3 As shown, two front skeleton main bodies 902 and two rear suspension skeletons 40 together constitute a power assembly 50 installation area. The power assembly 50 installation area is suitable for installing the power assembly 50, and the power assembly 50 installation area is an isosceles trapezoid. Specifically, by two front skeleton main bodies 902 and two rear suspension skeletons 40 together constituting an isosceles trapezoid-shaped power assembly 50 installation area and installing the power assembly 50 in the installation area, the supporting effect on the power assembly 50 can be strengthened. By utilizing the characteristics of the isosceles trapezoid being stable and not easily deformed, the centroid displacement and rotation of the power assembly 50 can be effectively suppressed, the vibration transmission between the power assembly 50 and the subframe assembly 100 can be reduced. In addition, the settings of the structures of the rear suspension skeleton 40 and the front suspension skeleton 90 can provide a reaction force to the torque output by the power assembly 50, and the anti-torsion limit effect is better, thereby effectively improving the stability of the power assembly 50.

[0074] In some embodiments of the present utility model, the power assembly 50 installation area can also be a rectangle or a square, both of which can strengthen the supporting effect on the power assembly 50.

[0075] Combined with Figure 1 、 Figure 2 、 Figure 3 and Figure 6 As shown, the front crossbeam 60 and the suspension crossbeam 901 are spaced apart in the front - rear direction and in the up - down direction. Specifically, by spacing the front crossbeam 60 and the suspension crossbeam 901 both in the front - rear direction and in the up - down direction, a hierarchical separation can be achieved between the front crossbeam 60 and the suspension crossbeam 901, which helps to improve the stability and reliability of the structure of the suspension crossbeam 901. Further, the suspension crossbeam can be more suitable for the installation of the powertrain 50, and the stability and reliability of the powertrain 50 after installation can be ensured.

[0076] Combined with Figure 1 、 Figure 2 、 Figure 5 and Figure 6 As shown, there are spacing differences L1 and L2 between the front crossbeam 60 and the suspension crossbeam 901 in the front - rear direction and in the up - down direction. Furthermore, the cantilever structure of the powertrain 50 relative to the front crossbeam 60 or relative to the front suspension skeleton 90 in the front - rear direction of the whole vehicle can be shortened, and the spacing L3 between the elastic mid - points of the two front bushing kits 9022 in the left - right direction should be as large as possible under the condition of available space. In this way, the encroachment on the energy - absorbing space from the front can be reduced, and the direct arrangement of the suspension system on the sub - frame assembly 100 can be avoided, achieving a hierarchical separation from the sub - frame assembly 100 in the front - rear direction and in the up - down direction.

[0077] Furthermore, the rear suspension skeleton 40 is directly connected and assembled with the powertrain 50. There is no cantilever structure in the front - rear direction and in the left - right direction of the whole vehicle, and the spacing L4 between the elastic mid - points of the rear bushing kit 4042 in the left - right direction should be as large as possible under the condition of available space. In this way, the encroachment on the energy - absorbing space from the rear can be reduced, and the arrangement of the suspension system in front of or behind the powertrain 50 can be avoided. The energy - absorbing space in the front cabin can be improved. When the pure electric vehicle collides under the offset - crash condition, the encroachment of the suspension structure on the energy - absorbing space can be avoided, the intrusion of the front wall panel and the deformation degree of the occupant compartment during the offset - crash can be controlled. The front part of the sub - frame assembly 100 can achieve better crash energy absorption in the limited crushing space, and the crashworthiness of the whole vehicle body and the score of the offset - crash condition can be improved.

[0078] Combined with Figure 1 、 Figure 2 and Figure 3 As shown, suspension mounting parts 101 are respectively arranged on the two longitudinal beams 10. The relevant suspension system can be connected to the sub - frame assembly 100 through the suspension mounting parts 101, which helps the relevant suspension system to play its role, and can ensure the rationality and reliability of the structure setting of the vehicle 1000 and the normal working performance of the vehicle 1000.

[0079] In some embodiments of the present utility model, the connection between the suspension mounting portion 101 and the relevant suspension system can be achieved by snap connection or screw connection.

[0080] In some embodiments of the present utility model, "V-shaped", "triangular", "I-shaped" and other strengthening structures are formed between the various structures, which can further enhance the structural strength of the subframe assembly 100 and reduce the vibration transmission between the various structures of the subframe assembly 100.

[0081] The vehicle 1000 according to the present utility model mainly includes: the above-mentioned subframe assembly 100; and the power assembly 50. Among them, the power assembly 50 is connected to the subframe assembly 100, which can ensure the stability and reliability of the structural arrangement of the vehicle 1000 and guarantee the normal working performance of the power assembly 50 and the subframe assembly 100.

[0082] Specifically, since the subframe assembly 100 has higher structural strength and stiffness and can ensure the good working performance of the power assembly 50, applying the subframe assembly 100 to the vehicle 1000 can avoid arranging the suspension system directly in front of or behind the power assembly 50, improve the energy absorption space in the front cabin, and prevent the suspension structure from encroaching on the energy absorption space during a vehicle offset collision, control the intrusion of the front wall panel and the deformation degree of the occupant compartment during an offset collision, and enhance the stability and reliability of the vehicle 1000.

[0083] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model.

[0084] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example.

[0085] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A subframe assembly, characterized in that: include: A longitudinal beam, wherein the longitudinal beam is extended in the front-rear direction and is in two pieces, and the two longitudinal beams are spaced apart in the left-right direction; A rear cross beam, the rear cross beam extending in the left-right direction and having two ends connected to the two longitudinal beams respectively; a reinforcing plate disposed between at least one of the longitudinal beams and the rear cross beam; A rear suspension frame, the rear suspension frame is suitable for being connected to a powertrain, the rear suspension frame has a first mounting portion, a second mounting portion and a third mounting portion, the first mounting portion is connected to the rear cross beam, the second mounting portion is connected to the longitudinal beam, the third mounting portion is connected to the reinforcing plate, and the first mounting portion, the second mounting portion and the third mounting portion are connected in sequence to form a triangle.

2. The subframe assembly according to claim 1, characterized in that: The rear suspension frame includes a rear frame body and a connecting plate, the connecting plate is triangular, and the three end angles of the connecting plate respectively form the first mounting portion, the second mounting portion and the third mounting portion. The rear frame body is arranged on the connecting plate and is suitable for being connected to the powertrain.

3. The subframe assembly according to claim 2, characterized in that: The rear frame body includes a rear main body member and a rear lining member. The rear main body member and the connecting plate are integrally formed structural members. The rear lining member is arranged in the rear main body member and is interference-fitted with the rear main body member.

4. The subframe assembly according to claim 3, characterized in that: The reinforcing plate and the rear suspension frame are arranged opposite to each other in the up and down directions. There are two reinforcing plates, which are arranged at intervals and respectively between the two longitudinal beams and the rear cross beam. There are two rear suspension frames, which correspond to the two reinforcing plates one by one.

5. The subframe assembly according to claim 1, characterized in that: It also includes a front cross beam, a control arm mounting bracket, a front suspension mounting bracket and a front suspension frame, the front cross beam extends in the left and right directions and is located between the two longitudinal beams, the front cross beam is spaced in front of the rear cross beam, the control arm mounting bracket is arranged between the longitudinal beam and the front cross beam, the front suspension mounting bracket is respectively connected to the control arm mounting bracket, the front cross beam and the longitudinal beam, the front suspension frame is connected to the front suspension mounting bracket, and the front suspension frame is suitable for being connected to a powertrain.

6. The subframe assembly according to claim 5, characterized in that: There are two control arm mounting brackets, and the two control arm mounting brackets correspond to the two longitudinal beams respectively. There are two front suspension mounting brackets, and the two front suspension mounting brackets correspond to the two control arm mounting brackets. The front suspension skeleton is extended in the left and right directions, and the two ends of the front suspension skeleton in the left and right directions are respectively connected to the two front suspension mounting brackets.

7. The subframe assembly according to claim 6, characterized in that: The front suspension frame includes a suspension crossbeam and a front frame body, the suspension crossbeam is extended in the left and right directions and two front suspension mounting brackets are connected at both ends, the front frame body is arranged on the suspension crossbeam and there are two of them, the two front frame bodies are arranged at intervals on the left and right, and the front frame body is suitable for connecting to the powertrain; The front frame body comprises a front main body member and a front lining member. The front main body member and the suspension crossbeam are integrally formed structural members. The front lining member is arranged in the front main body member and is interference-fitted with the front main body member.

8. The subframe assembly according to claim 7, characterized in that: The two front frame bodies and the two rear suspension frames together constitute a powertrain installation area, and the powertrain installation area is suitable for installing a powertrain, and the powertrain installation area is an isosceles trapezoid.

9. The subframe assembly according to claim 7, characterized in that: The front cross beam and the suspension cross beam are spaced apart in the front-to-rear direction, and the front cross beam and the suspension cross beam are spaced apart in the up-down direction.

10. A vehicle, characterized in that: include: The subframe assembly according to any one of claims 1 to 9; A power assembly is connected to the subframe assembly.

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