Rear auxiliary frame assembly and vehicle

Abstract

The utility model relates to the technical field of vehicles, in particular to a rear auxiliary frame assembly and a vehicle, and aims to solve the problem that an existing rear auxiliary frame assembly cannot meet the requirements for strength and light weight at the same time. In order to achieve the purpose, the rear auxiliary frame assembly comprises a first longitudinal beam, a second longitudinal beam, a first cross beam and a second cross beam, the first longitudinal beam and the second longitudinal beam are oppositely arranged; the first cross beam and the second cross beam are respectively arranged between the first longitudinal beam and the second longitudinal beam; the height direction of the first beam and the height direction of the second beam are not parallel to each other. Through the structural arrangement, the load transmission direction when the longitudinal beam transmits the load to the cross beam is changed, and then the force transmission angle between the longitudinal beam and the cross beam is changed, so that the load applied to the longitudinal beam can be smoothly transmitted to the cross beam, and the strength and the bearing capacity of the rear auxiliary frame assembly are greatly improved; therefore, a reinforcing plate in an original rear auxiliary frame assembly can be omitted, and light weight of a vehicle is facilitated.

Description

Technical Field

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

[0002] As one of the indispensable parts in the vehicle chassis system, the main structure of the rear subframe assembly is usually welded by two longitudinal beams and two cross beams. In practical applications, due to the special shape of the longitudinal beam, the load applied to the longitudinal beam cannot be smoothly transferred to the cross beam, which can easily cause stress concentration and damage the longitudinal beam, affecting the use of the vehicle. In order to improve this shortcoming, multiple reinforcement plates are usually added at the connection between the cross beam and the longitudinal beam to enhance the bending resistance of the longitudinal beam, thereby improving the strength of the rear subframe assembly. However, the weight of the reinforcement plate is large, resulting in the rear subframe assembly being too heavy and the structure being complicated, which cannot take into account the vehicle's requirements for lightweight.

[0003] Therefore, this field needs a new technical solution to solve the above problems. Utility Model Content

[0004] The utility model aims to solve the above technical problem, that is, to solve the problem that the existing rear subframe assembly cannot meet the requirements of strength and lightness at the same time.

[0005] In a first aspect, the utility model provides a rear subframe assembly, the rear subframe assembly comprising:

[0006] a first longitudinal beam and a second longitudinal beam, wherein the first longitudinal beam is arranged opposite to the second longitudinal beam;

[0007] A first cross beam and a second cross beam, wherein the first cross beam and the second cross beam are respectively arranged between the first longitudinal beam and the second longitudinal beam; a height direction of the first cross beam and a height direction of the second cross beam are not parallel to each other.

[0008] In the preferred technical solution of the above rear subframe assembly, one end of the first cross beam away from the ground is inclined in a direction away from the second cross beam.

[0009] In the preferred technical solution of the above rear subframe assembly, the rear subframe assembly further includes a first control arm bracket respectively arranged on the first longitudinal beam and the second longitudinal beam on the side close to the ground.

[0010] In the preferred technical solution of the above rear subframe assembly, the first control arm bracket includes a first bracket body and a first flange arranged on the first bracket body, and the first flange is arranged on the corresponding longitudinal beam.

[0011] In the preferred technical solution of the above rear subframe assembly, the first control arm bracket further includes a second flange arranged on the first bracket body, and the second flange is arranged on the first cross beam.

[0012] In the preferred technical solution of the above rear subframe assembly, the first bracket body has a plurality of first mounting positions for mounting a plurality of control arms.

[0013] In the preferred technical solution of the above rear subframe assembly, the rear subframe assembly further includes a second control arm bracket respectively arranged on the outer sides of the first longitudinal beam and the second longitudinal beam.

[0014] In the preferred technical solution of the above-mentioned rear subframe assembly, the second control arm bracket includes a second bracket body and a third flange and a fourth flange arranged on the second bracket body, and the third flange and the fourth flange are both arranged on the corresponding longitudinal beams.

[0015] In the preferred technical solution of the above rear sub-frame assembly, the rear sub-frame assembly further includes mounting brackets respectively arranged on the first longitudinal beam and the second longitudinal beam on a side away from the ground.

[0016] In the preferred technical solution of the above-mentioned rear subframe assembly, the mounting bracket includes a third bracket body and a fifth flange and a sixth flange arranged on the third bracket body, and the fifth flange and the sixth flange are both arranged on the corresponding longitudinal beams.

[0017] In the preferred technical solution of the above rear subframe assembly, the first longitudinal beam extends inwardly to form a first connecting portion, the second longitudinal beam extends inwardly to form a second connecting portion, and the second cross beam is provided between the first connecting portion and the second connecting portion.

[0018] In the preferred technical solution of the above rear subframe assembly, the second cross beam is a tubular structure with a hollow interior.

[0019] In a second aspect, the utility model further provides a vehicle, which includes the rear subframe assembly in the above preferred technical solution.

[0020] Solution 1. A rear subframe assembly, characterized in that the rear subframe assembly comprises:

[0021] a first longitudinal beam and a second longitudinal beam, wherein the first longitudinal beam is arranged opposite to the second longitudinal beam;

[0022] A first cross beam and a second cross beam, wherein the first cross beam and the second cross beam are respectively arranged between the first longitudinal beam and the second longitudinal beam; a height direction of the first cross beam and a height direction of the second cross beam are not parallel to each other.

[0023] Solution 2. The rear subframe assembly according to Solution 1 is characterized in that the end of the first cross beam away from the ground is inclined in a direction away from the second cross beam.

[0024] Solution 3. The rear subframe assembly according to Solution 1 is characterized in that the rear subframe assembly also includes a first control arm bracket respectively arranged on the first longitudinal beam and the second longitudinal beam on the side close to the ground.

[0025] Solution 4. The rear subframe assembly according to Solution 3 is characterized in that the first control arm bracket includes a first bracket body and a first flange arranged on the first bracket body, and the first flange is arranged on the longitudinal beam corresponding thereto.

[0026] Option 5. The rear subframe assembly according to Option 4 is characterized in that the first control arm bracket also includes a second flange arranged on the first bracket body, and the second flange is arranged on the first cross beam.

[0027] Option 6. The rear subframe assembly according to Option 4 is characterized in that the first bracket body has a plurality of first mounting positions for mounting a plurality of control arms.

[0028] Solution 7. The rear subframe assembly according to Solution 1 is characterized in that the rear subframe assembly also includes a second control arm bracket respectively arranged on the outer sides of the first longitudinal beam and the second longitudinal beam.

[0029] Solution 8. The rear subframe assembly according to Solution 7 is characterized in that the second control arm bracket includes a second bracket body and a third flange and a fourth flange arranged on the second bracket body, and the third flange and the fourth flange are both arranged on the corresponding longitudinal beams.

[0030] Solution 9. The rear subframe assembly according to Solution 1 is characterized in that the rear subframe assembly also includes mounting brackets respectively arranged on the side of the first longitudinal beam and the second longitudinal beam away from the ground.

[0031] Solution 10. The rear subframe assembly according to Solution 9 is characterized in that the mounting bracket includes a third bracket body and a fifth flange and a sixth flange arranged on the third bracket body, and the fifth flange and the sixth flange are both arranged on the corresponding longitudinal beams.

[0032] Solution 11. The rear subframe assembly according to Solution 1 is characterized in that the first longitudinal beam extends inwardly to form a first connecting portion, the second longitudinal beam extends inwardly to form a second connecting portion, and the second cross beam is arranged between the first connecting portion and the second connecting portion.

[0033] Solution 12. The rear subframe assembly according to Solution 11 is characterized in that the second cross beam is a tubular structure with a hollow interior.

[0034] Option 13. A vehicle, characterized in that the vehicle includes the rear subframe assembly described in any one of the above options 1-12.

[0035] It can be understood by those skilled in the art that the rear sub-frame assembly of the present invention changes the load transfer direction when the longitudinal beam transfers the load to the cross beam by setting the height direction of the first cross beam and the height direction of the second cross beam to be non-parallel to each other, thereby changing the force transmission angle between the longitudinal beam and the cross beam, so that the load applied to the longitudinal beam can be smoothly transferred to the cross beam, avoiding stress concentration, and greatly improving the strength and bearing capacity of the rear sub-frame assembly; thereby, the reinforcing plate in the original rear sub-frame assembly can be omitted, which is conducive to the lightweight of the vehicle.

[0036] Furthermore, by tilting the end of the first cross beam away from the ground in a direction away from the second cross beam, the load transfer direction when the two longitudinal beams transfer the load to the first cross beam can be changed, and the force transmission angle between the first cross beam and the two longitudinal beams can be increased, so that the load applied to the two longitudinal beams can be smoothly transferred to the first cross beam, avoiding stress concentration, and greatly improving the strength and bearing capacity of the rear sub-frame assembly; thereby, the reinforcing plate in the original rear sub-frame assembly can be omitted, reducing production costs, and facilitating the lightweighting of the vehicle.

[0037] Furthermore, by providing a double flange structure on the first control arm bracket, and connecting the first flange to the longitudinal beam and the second flange to the cross beam, the connection area between the first control arm bracket and the longitudinal beam and the cross beam is increased, the connection strength between the first control arm bracket and the longitudinal beam and the first control arm bracket and the cross beam is improved, and the safety performance of the rear subframe assembly is improved.

[0038] Furthermore, multiple control arms are simultaneously mounted on the same first control arm bracket, which reduces the number of control arm brackets, simplifies the overall structure of the rear subframe assembly, and contributes to the lightweighting of the vehicle.

[0039] Furthermore, by providing a double flange structure on the second control arm bracket and connecting the third flange and the fourth flange to the longitudinal beam, the connection area between the second control arm bracket and the longitudinal beam is increased, the connection strength between the second control arm bracket and the longitudinal beam is increased, and the safety performance of the rear subframe assembly is improved.

[0040] Furthermore, by providing a double flange structure on the mounting bracket and connecting the fifth flange and the sixth flange to the longitudinal beam, the connection area between the mounting bracket and the longitudinal beam is increased, the connection strength between the mounting bracket and the longitudinal beam is increased, and the safety performance of the rear subframe assembly is improved.

[0041] Furthermore, the arrangement of the first connection part and the second connection part ensures the connection reliability between the second crossbeam and the first longitudinal beam and the second longitudinal beam; at the same time, the arrangement of the first connection part and the second connection part enables the components originally arranged on the second crossbeam to be arranged on the first connection part and the second connection part, thereby achieving the effect of simplifying the structure of the second crossbeam.

[0042] Furthermore, the second cross beam is a tubular structure with a hollow interior, which is conducive to saving processing molds and reducing production costs; and when the width of the vehicle changes, only the length of the second cross beam needs to be adjusted to make the rear subframe assembly adapt to vehicles of different widths, which has strong versatility and further reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0044] Figure 1 It is a structural diagram of the rear subframe assembly of the utility model;

[0045] Figure 2 It is a partial exploded view of the rear subframe assembly of the utility model;

[0046] Figure 3 It is a partial structure of the rear subframe assembly of the utility model Figure 1 ;

[0047] Figure 4 It is a structural diagram of the first control arm bracket of the utility model;

[0048] Figure 5 It is a partial structure of the rear subframe assembly of the utility model Figure 2 ;

[0049] Figure 6 It is a partial structure of the rear subframe assembly of the utility model Figure 3 ;

[0050] Figure 7 It is a partial structure of the rear subframe assembly of the utility model Figure 4 ;

[0051] Figure 8 yes Figure 7 Middle AA section view.

[0052] Reference numerals:

[0053] 1. a first longitudinal beam; 11. a first connecting portion;

[0054] 2. a second longitudinal beam; 21. a second connecting portion;

[0055] 3. The first beam;

[0056] 4. Second crossbeam;

[0057] 5. First control arm bracket; 51. First bracket body; 52. First flange; 53. Second flange; 54. First installation position;

[0058] 6. Second control arm bracket; 61. Second bracket body; 62. Third flange; 63. Fourth flange; 64. Second installation position;

[0059] 7. Mounting bracket; 71. Third bracket body; 72. Fifth flange; 73. Sixth flange; 74. Third mounting position. DETAILED DESCRIPTION

[0060] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. For example, although the rear subframe assembly of the present invention is described in the specification as being applied to a sedan, the technical solution of the present invention is not limited thereto, and those skilled in the art can apply the technical solution of the vehicle body structure of the present invention to other types of vehicles, such as off-road vehicles, etc., as needed, and such changes to the application object do not deviate from the principle and scope of the present invention.

[0061] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer", "vertical" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third", "fourth", "fifth" and "sixth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0062] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "connection", "setting" and "installation" 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, a direct connection, or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] Based on the problem pointed out in the background technology that the existing method of adding multiple reinforcing plates at the connection between the crossbeam and the longitudinal beam to improve the strength of the rear sub-frame assembly leads to a complicated structure of the rear sub-frame assembly and cannot take into account the lightweight of the vehicle, the utility model provides a rear sub-frame assembly, which includes a first longitudinal beam, a second longitudinal beam, a first crossbeam and a second crossbeam; the first longitudinal beam and the second longitudinal beam are arranged oppositely; the first crossbeam and the second crossbeam are respectively arranged between the first longitudinal beam and the second longitudinal beam; the height direction of the first crossbeam and the height direction of the second crossbeam are not parallel to each other. Through the above-mentioned structural setting, the load transfer direction when the longitudinal beam transfers the load to the crossbeam is changed, and then the force transmission angle between the longitudinal beam and the crossbeam is changed, so that the load applied to the longitudinal beam can be smoothly transferred to the crossbeam, avoiding stress concentration, and greatly improving the strength and bearing capacity of the rear sub-frame assembly; thereby, the reinforcing plate in the original rear sub-frame assembly can be omitted, which is conducive to the lightweight of the vehicle.

[0064] See first Figure 1 and Figure 2 The rear subframe assembly of the utility model comprises a first longitudinal beam 1, a second longitudinal beam 2, a first cross beam 3 and a second cross beam 4; the first longitudinal beam 1 and the second longitudinal beam 2 are arranged opposite to each other; the first cross beam 3 and the second cross beam 4 are arranged between the first longitudinal beam 1 and the second longitudinal beam 2 respectively; the height direction of the first cross beam 3 (such as Figure 2 Z1 direction in the figure) and the height direction of the second beam 4 (such as Figure 2 The Z2 direction in the diagram) are not parallel to each other.

[0065] It is worth mentioning that the rear subframe assembly is located in the vehicle chassis system; specifically, the first longitudinal beam 1 and the second longitudinal beam 2 of the rear subframe assembly are arranged along the width direction of the vehicle (such as Figure 1 The first cross beam 3 and the second cross beam 4 are arranged opposite to each other along the length direction of the vehicle (such as Figure 1 The first longitudinal beam 1 and the second longitudinal beam 2 are arranged between the first longitudinal beam 1 and the second longitudinal beam 2 to form a closed frame structure.

[0066] Continue reading Figure 1 , 2 Combined with Figure 7 , 8 , the end of the first beam 3 away from the ground (such as Figure 8 in the direction away from the second beam 4 (such as Figure 8 The above arrangement can change the load transfer direction when the two longitudinal beams (the first longitudinal beam 1 and the second longitudinal beam 2) transfer the load to the first cross beam 3, increase the force transfer angle between the first cross beam 3 and the two longitudinal beams, so that the load applied to the two longitudinal beams can be smoothly transferred to the first cross beam 3, avoid stress concentration, and greatly improve the strength and load-bearing capacity of the rear subframe assembly; thereby, the reinforcement plate in the original rear subframe assembly can be omitted, the production cost can be reduced, and it is conducive to the lightweight of the vehicle.

[0067] Preferably, the inclination angle of the height direction of the first crossbeam 3 relative to the height direction of the second crossbeam 4 is α. Specifically, the inclination angle α in the present application is not fixed, and those skilled in the art can flexibly adjust the degree of the inclination angle α according to the actual product situation. For example, the inclination angle α is 25°.

[0068] like Figure 1 , Figure 3 and Figure 4 As shown, the rear subframe assembly also includes two parts respectively arranged on the first longitudinal beam 1 and the second longitudinal beam 2 close to the ground (such as Figure 1 The first control arm bracket 5 (on the lower side in the figure) is used to install the control arm, so as to suspend the rear subframe assembly on the vehicle.

[0069] Preferably, the number of the first control arm brackets 5 is two, and the two first control arm brackets 5 are symmetrically arranged on the first longitudinal beam 1 and the second longitudinal beam 2, so that the overall force of the rear subframe assembly is uniform, thereby improving the safety of use.

[0070] Preferably, if Figure 1 , Figure 3 and Figure 4 As shown, the first control arm bracket 5 includes a first bracket body 51 and a first flange 52 and a second flange 53 arranged on the first bracket body 51; the first flange 52 of the first control arm bracket 5 on the first longitudinal beam 1 is arranged on the first longitudinal beam 1, and the second flange 53 is arranged on the first cross beam 3; the first flange 52 of the first control arm bracket 5 on the second longitudinal beam 2 is arranged on the second longitudinal beam 2, and the second flange 53 is arranged on the first cross beam 3. By arranging a double flange structure (i.e., the first flange 52 and the second flange 53) on the first control arm bracket 5 to be connected to the longitudinal beam and the cross beam respectively, the connection area between the first control arm bracket 5 and the longitudinal beam and the cross beam is increased, the connection strength between the first control arm bracket 5 and the longitudinal beam and the first control arm bracket 5 and the cross beam is improved, and the safety performance of the rear subframe assembly is improved.

[0071] like Figure 4 As shown, the first bracket body 51 has a plurality of first mounting positions 54 for mounting a plurality of control arms. The plurality of control arms are mounted on the same first control arm bracket 5 at the same time, so as to reduce the number of control arm brackets, simplify the overall structure of the rear subframe assembly, and contribute to the lightweight of the vehicle.

[0072] In one embodiment, two control arms are simultaneously arranged on the first control arm bracket 5, and the number of the first mounting positions 54 is 2. It should be noted that, without affecting the overall performance of the rear subframe assembly, those skilled in the art can flexibly adjust the number of control arms arranged on the first control arm bracket 5 according to actual product conditions.

[0073] like Figure 1 and Figure 5 As shown, the rear subframe assembly also includes two components respectively arranged on the outer side of the first longitudinal beam 1 (such as Figure 1 The left side of the first longitudinal beam 1) and the outer side of the second longitudinal beam 2 (such as Figure 1 The second control arm bracket 6 (on the right side of the second longitudinal beam 2) is used to install the control arm, so as to suspend the rear subframe assembly on the vehicle.

[0074] Specifically, the second control arm bracket 6 includes a second bracket body 61 , and the second bracket body 61 has a second mounting position 64 for mounting the control arm.

[0075] Preferably, the number of the second control arm brackets 6 is 2, and the two second control arm brackets 6 are symmetrically arranged on the first longitudinal beam 1 and the second longitudinal beam 2, so that the overall force of the rear subframe assembly is uniform, thereby improving the safety of use.

[0076] Preferably, the second control arm bracket 6 includes a second bracket body 61 and a third flange 62 and a fourth flange 63 arranged on the second bracket body 61; the third flange 62 and the fourth flange 63 of the second control arm bracket 6 on the first longitudinal beam 1 are both arranged on the first longitudinal beam 1, and the third flange 62 and the fourth flange 63 of the second control arm bracket 6 on the second longitudinal beam 2 are both arranged on the second longitudinal beam 2. By arranging a double flange structure (i.e., the third flange 62 and the fourth flange 63) on the second control arm bracket 6 to connect with the longitudinal beam, the connection area between the second control arm bracket 6 and the longitudinal beam is increased, the connection strength between the second control arm bracket 6 and the longitudinal beam is improved, and the safety performance of the rear subframe assembly is improved.

[0077] It is worth mentioning that the rear subframe assembly is located under the main frame of the vehicle and is connected to the main frame.

[0078] like Figure 1 and Figure 6 As shown, the rear subframe assembly also includes two parts which are respectively arranged on the first longitudinal beam 1 and the second longitudinal beam 2 away from the ground (such as Figure 1 The mounting bracket 7 is provided on the upper side of the rear sub-frame, and is used to connect with the main frame. Preferably, the number of the mounting brackets 7 is 2, and the two mounting brackets 7 are symmetrically arranged on the first longitudinal beam 1 and the second longitudinal beam 2, so that the overall force of the rear sub-frame assembly is uniform, and the safety of use is improved.

[0079] Preferably, the mounting bracket 7 includes a third bracket body 71 and a fifth flange 72 and a sixth flange 73 arranged on the third bracket body 71; the fifth flange 72 and the sixth flange 73 of the mounting bracket 7 on the first longitudinal beam 1 are both arranged on the first longitudinal beam 1, and the fifth flange 72 and the sixth flange 73 of the mounting bracket 7 on the second longitudinal beam 2 are both arranged on the second longitudinal beam 2. By arranging a double flange structure (i.e., the fifth flange 72 and the sixth flange 73) on the mounting bracket 7 to connect with the longitudinal beam, the connection area between the mounting bracket 7 and the longitudinal beam is increased, the connection strength between the mounting bracket 7 and the longitudinal beam is improved, and the safety performance of the rear subframe assembly is improved.

[0080] like Figure 6 As shown, the third bracket body 71 has a third mounting position 74 for connecting the sub-frame assembly to the main frame of the vehicle. Specifically, the third mounting position 74 is a mounting hole structure, and the fastener passes through the mounting hole to connect to the main frame.

[0081] Preferably, if Figure 1 and Figure 2 As shown, the first longitudinal beam 1 is directed to its inner side (as shown Figure 1 The first longitudinal beam 1 extends to the right side of the first longitudinal beam 1 to form a first connecting portion 11, and the second longitudinal beam 2 extends to the inner side thereof (such as Figure 1 The left side of the second longitudinal beam 2 in the middle is extended to form a second connecting portion 21, and a second cross beam 4 is arranged between the first connecting portion 11 and the second connecting portion 21 to ensure the connection reliability between the second cross beam 4 and the first longitudinal beam 1 and the second longitudinal beam 2; at the same time, the arrangement of the first connecting portion 11 and the second connecting portion 21 enables the components originally arranged on the second cross beam 4 to be arranged on the first connecting portion 11 and the second connecting portion 21, thereby achieving the effect of simplifying the structure of the second cross beam 4.

[0082] like Figure 8 As shown, the second cross beam 4 is a tubular structure with a hollow interior, which is beneficial for saving processing molds and reducing production costs; and when the width of the vehicle changes, only the length of the second cross beam 4 needs to be adjusted to make the rear subframe assembly adapt to vehicles of different widths, which has strong versatility and further reduces production costs.

[0083] It should be noted that although Figure 8 The cross-sectional shape of the second cross beam 4 shown in the figure is rectangular, but this is only exemplary and not restrictive; in practical applications, those skilled in the art can flexibly adjust the cross-sectional shape of the second cross beam 4, for example, the cross-sectional shape of the second cross beam 4 is circular.

[0084] In a second aspect, the utility model further discloses a vehicle, which includes the rear subframe assembly described in any of the aforementioned schemes and has all the above technical effects, which will not be repeated here.

[0085] Finally, it is worth noting that the technical solution of the rear subframe assembly adopted by the utility model can be applied not only to cars, but also to off-road vehicles, trucks or vans, etc., and such adjustment of the application object does not deviate from the principle and scope of the utility model. Among them, the vehicle can be an electric vehicle, a hybrid vehicle, a gasoline vehicle, etc., which are not listed here one by one.

[0086] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A rear subframe assembly, characterized in that: The rear subframe assembly comprises: a first longitudinal beam and a second longitudinal beam, wherein the first longitudinal beam is arranged opposite to the second longitudinal beam; A first cross beam and a second cross beam, wherein the first cross beam and the second cross beam are respectively arranged between the first longitudinal beam and the second longitudinal beam; a height direction of the first cross beam and a height direction of the second cross beam are not parallel to each other.

2. The rear subframe assembly according to claim 1, characterized in that: One end of the first beam away from the ground is inclined in a direction away from the second beam.

3. The rear subframe assembly according to claim 1, characterized in that: The rear subframe assembly further includes a first control arm bracket respectively arranged on a side of the first longitudinal beam and the second longitudinal beam close to the ground.

4. The rear subframe assembly according to claim 3, characterized in that: The first control arm bracket includes a first bracket body and a first flange arranged on the first bracket body, and the first flange is arranged on a corresponding longitudinal beam.

5. The rear subframe assembly according to claim 4, characterized in that: The first control arm bracket further includes a second flange arranged on the first bracket body, and the second flange is arranged on the first cross beam.

6. The rear subframe assembly according to claim 4, characterized in that: The first bracket body has a plurality of first mounting positions for mounting a plurality of control arms.

7. The rear subframe assembly according to claim 1, characterized in that: The rear subframe assembly further includes second control arm brackets respectively disposed on the outer sides of the first longitudinal beam and the second longitudinal beam.

8. The rear subframe assembly according to claim 7, characterized in that: The second control arm bracket includes a second bracket body and a third flange and a fourth flange arranged on the second bracket body, and the third flange and the fourth flange are both arranged on the corresponding longitudinal beams.

9. The rear subframe assembly according to claim 1, characterized in that: The rear subframe assembly further includes mounting brackets respectively arranged on the first longitudinal beam and the second longitudinal beam at a side away from the ground.

10. The rear subframe assembly according to claim 9, characterized in that: The mounting bracket includes a third bracket body and a fifth flange and a sixth flange arranged on the third bracket body, and the fifth flange and the sixth flange are both arranged on the corresponding longitudinal beams.

11. The rear subframe assembly according to claim 1, characterized in that: The first longitudinal beam extends inwardly to form a first connecting portion, the second longitudinal beam extends inwardly to form a second connecting portion, and the second cross beam is disposed between the first connecting portion and the second connecting portion.

12. The rear subframe assembly according to claim 11, characterized in that: The second cross beam is a tubular structure with a hollow interior.

13. A vehicle, characterized in that: The vehicle comprises the rear subframe assembly according to any one of claims 1 to 12 above.

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