Multi-link rear drive rear subframe without intermediate beam and automobile

Abstract

The utility model provides a kind of multi-connecting rod rear drive rear subframe and car without intermediate crossbeam, rear subframe includes main body frame and multiple mounting components, and multiple mounting components are fixedly connected to main body frame;Main body frame includes front crossbeam, rear crossbeam, a pair of upper longitudinal beams and a pair of lower longitudinal beams, front crossbeam, rear crossbeam and a pair of upper longitudinal beams are connected into mouth-shaped, a pair of lower longitudinal beams are oppositely arranged below a pair of upper longitudinal beams, the front end of lower longitudinal beam is connected with front crossbeam, the rear end of lower longitudinal beam is connected with rear crossbeam, a pair of lower longitudinal beams form inverted eight-character shape of front wide and rear narrow, to increase the effective projection span of a pair of lower longitudinal beams in lateral direction, replace traditional H-shaped or well-shaped subframe, cancel intermediate crossbeam, applicable to hybrid rear drive vehicle type also applicable to pure electric and hybrid vehicle type common platform development situation, solve the problem that control arm lateral stiffness cannot meet the tuning requirement generated by avoiding exhaust pipe and power assembly unable to design intermediate crossbeam.

Description

Technical Field

[0001] This utility model belongs to the field of automobile manufacturing technology, and more specifically, relates to a multi-link rear-wheel drive subframe without a middle crossbeam and an automobile. Background Technology

[0002] The rear subframe is a crucial structural component in a car, primarily connecting the body and rear suspension. Traditional rear-wheel-drive vehicles typically employ a subframe design with a central crossbeam, such as a grid-like or H-shaped frame, to connect suspension links, transfer loads, and support the drive unit. However, this design suffers from several drawbacks: it is relatively heavy, as the crossbeam increases material usage, hindering vehicle weight reduction; and it occupies significant space, limiting the flexibility of chassis component layout and affecting the placement of components like the driveshaft and exhaust pipe, contradicting the current trend of platform-based development for pure electric and range-extended passenger vehicles. Utility Model Content

[0003] The purpose of this utility model is to provide a multi-link rear-wheel drive subframe and automobile without a central crossbeam, solving the problems of large weight and high space occupation of "well" shaped frames or "H" shaped frames.

[0004] To achieve the above objectives, in a first aspect, the present invention provides a multi-link rear-drive subframe without a central crossbeam, comprising a main frame and multiple mounting components, wherein the multiple mounting components are fixedly connected to the main frame.

[0005] The main frame includes a front crossbeam, a rear crossbeam, a pair of upper longitudinal beams, and a pair of lower longitudinal beams. The front crossbeam and the rear crossbeam are arranged opposite each other, and the pair of upper longitudinal beams are arranged opposite each other. The front crossbeam, the rear crossbeam, and the pair of upper longitudinal beams are connected to form a U-shape. The pair of lower longitudinal beams are arranged opposite each other below the pair of upper longitudinal beams. The front end of the lower longitudinal beam is connected to the front crossbeam, and the rear end of the lower longitudinal beam is connected to the rear crossbeam. The distance between the front ends of the pair of lower longitudinal beams is greater than the distance between the rear ends of the pair of lower longitudinal beams.

[0006] Optionally, the main frame further includes:

[0007] A pair of upper diagonal braces are provided at the first corner formed by the connection between the front crossbeam and the upper longitudinal beam. One end of the upper diagonal brace is connected to the front crossbeam, and the other end of the upper diagonal brace is connected to the upper longitudinal beam.

[0008] A pair of lower diagonal braces are provided at the second corner formed by the connection between the front crossbeam and the lower longitudinal beam. One end of the lower diagonal brace is connected to the front crossbeam, and the other end of the lower diagonal brace is connected to the lower longitudinal beam.

[0009] Optionally, one end of the upper diagonal brace is formed with a first flange, which is connected to the front crossbeam, and the other end of the upper diagonal brace is formed with a second flange, which is connected to the upper longitudinal beam.

[0010] One end of the lower diagonal brace has a third flange, which is connected to the front crossbeam. The other end of the lower diagonal brace has a fourth flange, which is connected to the lower longitudinal beam.

[0011] Optionally, the upper longitudinal beam has an upwardly protruding upper curved portion, and the lower longitudinal beam has a downwardly protruding lower curved portion, forming a clearance space between the upper longitudinal beam and the lower longitudinal beam.

[0012] Optionally, the lower part of the lower curved portion is provided with a groove.

[0013] Optionally, the front crossbeam, the rear crossbeam, the upper longitudinal beam, and the lower longitudinal beam are all tubular.

[0014] Optionally, the plurality of mounting components include: a pair of camber bar mounting brackets, a pair of H-arm front point mounting brackets, a pair of H-arm rear point mounting brackets, a pair of toe-in linkage mounting brackets, a front suspension sleeve, a pair of subframe front mounting sleeves, a pair of subframe rear mounting sleeves, a pair of stabilizer bar mounting brackets, and a pair of rear suspension brackets.

[0015] The camber rod mounting bracket is provided with camber rod mounting holes, the H-arm front point mounting bracket is provided with H-arm front point mounting holes, the H-arm rear point mounting bracket is provided with H-arm rear point mounting holes, the toe-in connecting rod mounting bracket is provided with toe-in connecting rod mounting holes, the stabilizer bar mounting bracket is provided with stabilizer bar mounting holes, and the rear suspension bracket is provided with rear suspension mounting holes.

[0016] Optionally, the outward tilt bar mounting bracket is fixedly connected to the middle of the upper longitudinal beam;

[0017] A pair of H-arm front mounting brackets are connected to the outside of the main frame, and the H-arm front mounting brackets are connected to the upper longitudinal beam, the lower longitudinal beam and the front cross beam;

[0018] The H-arm rear point mounting bracket is located between the upper longitudinal beam and the lower longitudinal beam. The lower end of the mounting bracket is connected to the lower longitudinal beam, and the upper end of the mounting bracket is connected to the upper longitudinal beam.

[0019] The toe-in mounting bracket is connected to the front of the lower longitudinal beam;

[0020] The front suspension sleeve is fixedly connected to the middle of the front crossbeam;

[0021] A pair of the subframe front mounting sleeves are connected to both ends of the front crossbeam;

[0022] A pair of said subframe rear mounting sleeves are connected to the rear ends of a pair of said upper longitudinal beams;

[0023] One end of the stabilizer bar mounting bracket is connected to the rear mounting sleeve of the subframe, and the other end of the stabilizer bar mounting bracket is connected to the rear crossbeam;

[0024] A pair of rear suspension brackets are spaced apart and connected to the middle of the rear crossbeam.

[0025] Optionally, the H-arm front mounting bracket has a fifth flange, a sixth flange, and a seventh flange. The fifth flange is connected to the upper longitudinal beam, the sixth flange is connected to the lower longitudinal beam, and the seventh flange is connected to the front crossbeam.

[0026] The lower end of the mounting bracket has an eighth flange, which is connected to the lower longitudinal beam (2). The upper end of the mounting bracket is connected to the upper longitudinal beam through a connecting part.

[0027] The front suspension sleeve is connected to the front crossbeam via a front suspension bracket.

[0028] Secondly, this utility model provides an automobile, comprising:

[0029] The first aspect describes a multi-link rear-wheel drive subframe without a central crossbeam.

[0030] The beneficial effects of this utility model are as follows: It provides a multi-link rear-wheel drive subframe without a central crossbeam, including a main frame and multiple mounting components, which are fixedly connected to the main frame. The main frame includes a front crossbeam, a rear crossbeam, a pair of upper longitudinal beams, and a pair of lower longitudinal beams. The front crossbeam, rear crossbeam, and pair of upper longitudinal beams are connected in a U-shape. The pair of lower longitudinal beams are positioned opposite each other below the pair of upper longitudinal beams. The front end of the lower longitudinal beams is connected to the front crossbeam, and the rear end of the lower longitudinal beams is connected to the rear crossbeam. The distance between the front ends of the pair of lower longitudinal beams is greater than the distance between the rear ends of the pair of lower longitudinal beams. The pair of lower longitudinal beams form an inverted V-shape, wider at the front and narrower at the rear, to increase the effective lateral projection span of the pair of lower longitudinal beams. This replaces the traditional H-shaped or grid-shaped subframe, eliminates the central crossbeam, and can be used independently for hybrid rear-wheel drive vehicles as well as for pure electric and hybrid vehicles developed on the same platform. It solves the problem that the lateral stiffness of the control arms cannot meet the tuning requirements due to the inability to design a central crossbeam to avoid exhaust pipes and powertrains.

[0031] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0032] The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings, in which like reference numerals generally represent like parts.

[0033] Figure 1 A schematic structural diagram of a multi-link rear-drive subframe without a central crossbeam, according to Embodiment 1 of this utility model, is shown.

[0034] Figure 2 The figure shows a bottom view of the multi-link rear-drive subframe without a middle crossbeam according to Embodiment 1 of this utility model.

[0035] Figure 3 A top view of the main frame of Embodiment 1 of this utility model is shown.

[0036] Figure 4 A bottom view of the main frame of Embodiment 1 of this utility model is shown.

[0037] Figure 5 A side view of the main frame of Embodiment 1 of this utility model is shown.

[0038] Figure 6 A schematic diagram showing the connection between the upper diagonal brace and the main frame in Embodiment 1 of this utility model is shown.

[0039] Figure 7 A schematic diagram showing the connection between the lower diagonal brace and the main frame in Embodiment 1 of this utility model is shown.

[0040] Figure 8 A schematic diagram of the H-arm front mounting bracket of Embodiment 1 of this utility model is shown.

[0041] Figure 9 The diagram shows the connection between the H-arm front mounting bracket and the main frame in Embodiment 1 of this utility model.

[0042] Figure 10 A schematic diagram of the H-arm rear point mounting bracket of Embodiment 1 of this utility model is shown.

[0043] Figure 11 A schematic diagram of the connection between the H-arm rear point mounting bracket and the main frame in Embodiment 1 of this utility model is shown.

[0044] Figure 12 A schematic diagram of the toe-in mounting bracket of Embodiment 1 of this utility model is shown.

[0045] Figure 13 A schematic diagram showing the connection between the toe-in linkage mounting bracket and the main frame in Embodiment 1 of this utility model is shown.

[0046] Figure 14 A schematic diagram of the stabilizer bar mounting bracket of Embodiment 1 of this utility model is shown.

[0047] Figure 15 A schematic diagram showing the connection between the stabilizer mounting bracket and the main frame in Embodiment 1 of this utility model is shown.

[0048] Explanation of reference numerals in the attached figures:

[0049] 1. Upper longitudinal beam; 2. Lower longitudinal beam; 3. Camber bar mounting bracket; 4. H-arm front mounting bracket; 5. H-arm rear mounting bracket; 6. Toe-in linkage mounting bracket; 7. Front crossbeam; 8. Rear crossbeam; 9. Upper diagonal brace; 10. Front suspension bracket; 11. Front suspension sleeve; 12. Stabilizer bar mounting bracket; 13. Rear suspension bracket; 14. Lower diagonal brace; 15. Subframe front mounting sleeve; 16. Subframe rear mounting sleeve; 17. First flange; 18. Second flange; 19. Third flange; 20. Fourth flange; 21. Fifth flange; 22. Sixth flange; 23. Seventh flange; 24. Eighth flange; 25. Upper bend; 26. Lower bend; 27. Groove; 28. Connecting part. Detailed Implementation

[0050] Preferred embodiments of the present invention will now be described in more detail. While preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0051] Example 1

[0052] like Figure 1-15 As shown, this embodiment provides a multi-link rear-wheel drive subframe without a middle crossbeam, including a main frame and multiple mounting components, which are fixedly connected to the main frame.

[0053] The main frame includes: a front crossbeam 7, a rear crossbeam 8, a pair of upper longitudinal beams 1 and a pair of lower longitudinal beams 2. The front crossbeam 7 and the rear crossbeam 8 are arranged opposite each other, and the pair of upper longitudinal beams 1 are arranged opposite each other. The front crossbeam 7, the rear crossbeam 8 and the pair of upper longitudinal beams 1 are connected to form a U-shape. The pair of lower longitudinal beams 2 are arranged opposite each other below the pair of upper longitudinal beams 1. The front end of the lower longitudinal beam 2 is connected to the front crossbeam 7, and the rear end of the lower longitudinal beam 2 is connected to the rear crossbeam 8. The distance between the front ends of the pair of lower longitudinal beams 2 is greater than the distance between the rear ends of the pair of lower longitudinal beams 2.

[0054] Specifically, the pair of lower longitudinal beams 2 form an inverted V-shape that is wider at the front and narrower at the rear, thereby increasing the effective lateral projection span of the pair of lower longitudinal beams 2. This replaces the traditional H-shaped or grid-shaped subframe, eliminates the middle crossbeam, and can be used independently for hybrid rear-wheel drive models as well as for pure electric and hybrid models developed on the same platform. This solves the problem that the lateral stiffness of the control arm cannot meet the tuning requirements due to the inability to design a middle crossbeam to avoid the exhaust pipe and powertrain.

[0055] Optionally, the main framework also includes:

[0056] A pair of upper diagonal braces 9 are provided at the first corner formed by the connection between the front crossbeam 7 and the upper longitudinal beam 1. One end of the upper diagonal brace 9 is connected to the front crossbeam 7, and the other end of the upper diagonal brace 9 is connected to the upper longitudinal beam 1.

[0057] A pair of lower diagonal braces 14 are provided at the second corner formed by the connection between the front crossbeam 7 and the lower longitudinal beam 2. One end of the lower diagonal brace 14 is connected to the front crossbeam 7, and the other end of the lower diagonal brace 14 is connected to the lower longitudinal beam 2.

[0058] Specifically, the upper diagonal brace 9 overlaps with the front crossbeam 7 and the upper longitudinal beam 1, and the lower diagonal brace 14 overlaps with the front crossbeam 7 and the lower longitudinal beam 2, further enhancing the lateral stiffness of the main frame and the connection point of the control arm.

[0059] Optionally, one end of the upper diagonal brace 9 is formed with a first flange 17, which is connected to the front crossbeam 7, and the other end of the upper diagonal brace 9 is formed with a second flange 18, which is connected to the upper longitudinal beam 1.

[0060] One end of the lower diagonal brace 14 forms a third flange 19, which is connected to the front crossbeam 7. The other end of the lower diagonal brace 14 forms a fourth flange 20, which is connected to the lower longitudinal beam 2.

[0061] Specifically, the upper diagonal brace 9 and the lower diagonal brace 14 are designed with a flange structure at the lap joint to achieve parallel welding, which can reduce the stress level at the weld position under torsion and braking conditions and improve the fatigue life of the weld at the corresponding position.

[0062] Optionally, the upper longitudinal beam 1 has an upwardly protruding upper curved portion 25, and the lower longitudinal beam 2 has a downwardly protruding lower curved portion 26, forming a clearance space between the upper longitudinal beam 1 and the lower longitudinal beam 2.

[0063] Specifically, the upper longitudinal beam 1 arches upward and the lower longitudinal beam 2 arches downward, forming a three-dimensional bow-shaped clearance space to avoid the drive shaft.

[0064] Optionally, the lower part of the lower curved portion 26 is provided with a groove 27.

[0065] Specifically, the lower boundary of the lower longitudinal beam 2 is the lowest point of the entire subframe, and a groove 27 is designed at the low point of the lower longitudinal beam 2 to meet the ground clearance requirements.

[0066] Optionally, the front crossbeam 7, the rear crossbeam 8, the upper longitudinal beam 1, and the lower longitudinal beam 2 are all tubular.

[0067] In this embodiment, the upper longitudinal beam 1, lower longitudinal beam 2, front crossbeam 7 and rear crossbeam 8 are made of cold-drawn tube beam structure. The cavity structure of the tube beam can maximize the overall rigidity of the subframe. At the same time, the cold-drawn tube process can provide different material thickness options for different models on the common platform without increasing the mold cost, while ensuring that the outer diameter of the tube beam remains unchanged. This is more conducive to platform development. The differentiated thickness of different models can maximize the achievement of lightweighting.

[0068] Optionally, the multiple mounting components include: a pair of camber bar mounting brackets 3, a pair of H-arm front point mounting brackets 4, a pair of H-arm rear point mounting brackets 5, a pair of toe-in linkage mounting brackets 6, a front suspension sleeve 11, a pair of subframe front mounting sleeves 15, a pair of subframe rear mounting sleeves 16, a pair of stabilizer bar mounting brackets 12, and a pair of rear suspension brackets 13.

[0069] The camber rod mounting bracket 3 is provided with camber rod mounting holes, the H-arm front point mounting bracket 4 is provided with H-arm front point mounting holes, the H-arm rear point mounting bracket 5 is provided with H-arm rear point mounting holes, the toe-in connecting rod mounting bracket 6 is provided with toe-in connecting rod mounting holes, the stabilizer bar mounting bracket 12 is provided with stabilizer bar mounting holes, and the rear suspension bracket 13 is provided with rear suspension mounting holes.

[0070] Specifically, the front mounting sleeve 15 and the rear mounting sleeve 16 are used to connect to the vehicle body, while the camber bar mounting bracket 3, the H-arm front point mounting bracket 4, the H-arm rear point mounting bracket 5, and the toe-in linkage mounting bracket 6 are used to connect to the control arm. The camber bar mounting bracket 3, the H-arm front point mounting bracket 4, the H-arm rear point mounting bracket 5, the toe-in linkage mounting bracket 6, and the stabilizer bar mounting bracket 12 are attached to the main frame according to the hardpoint position requirements, and the front suspension sleeve 11 and the rear suspension bracket 13 are attached to the main frame according to the powertrain layout requirements to meet the functional layout requirements of the subframe.

[0071] Optionally, the outward tilt bar mounting bracket 3 is fixedly connected to the middle of the upper longitudinal beam 1;

[0072] A pair of H-arm front mounting brackets 4 are connected to the outside of the main frame. The H-arm front mounting brackets 4 are connected to the upper longitudinal beam 1, the lower longitudinal beam 2 and the front cross beam 7.

[0073] The H-arm rear mounting bracket 5 is located between the upper longitudinal beam 1 and the lower longitudinal beam 2. The lower end of the mounting bracket 5 is connected to the lower longitudinal beam 2, and the upper end of the mounting bracket 5 is connected to the upper longitudinal beam 1.

[0074] The toe-in linkage mounting bracket 6 is connected to the front of the lower longitudinal beam 2;

[0075] The front suspension sleeve 11 is fixedly connected to the middle of the front crossbeam 7;

[0076] A pair of subframe front mounting sleeves 15 are connected to both ends of the front crossbeam 7;

[0077] A pair of subframe rear mounting sleeves 16 are connected to the rear end of a pair of upper longitudinal beams 1;

[0078] One end of the stabilizer bar mounting bracket 12 is connected to the rear mounting sleeve 16 of the subframe, and the other end of the stabilizer bar mounting bracket 12 is connected to the rear crossbeam 8.

[0079] A pair of rear suspension brackets 13 are spaced apart and connected to the middle of the rear crossbeam 8.

[0080] Specifically, the H-arm rear mounting bracket 5 spans between the upper longitudinal beam 1 and the lower longitudinal beam 2, avoiding the cantilever structure that would result from the lack of an intermediate crossbeam, thus improving the lateral stiffness of the H-arm rear mounting bracket 5. The H-arm front mounting bracket 4 simultaneously overlaps with the upper longitudinal beam 1, the lower longitudinal beam 2, and the front crossbeam 7, significantly enhancing the longitudinal and lateral stiffness of the H-arm front point and ensuring that the stiffness at this point meets the chassis tuning requirements.

[0081] Optionally, the H-arm front mounting bracket 4 has a fifth flange 21, a sixth flange 22 and a seventh flange 23. The fifth flange 21 is connected to the upper longitudinal beam 1, the sixth flange 22 is connected to the lower longitudinal beam 2, and the seventh flange 23 is connected to the front crossbeam 7.

[0082] The lower end of the mounting bracket 5 has an eighth flange 24, which is connected to the lower longitudinal beam 2. The upper end of the mounting bracket 5 is connected to the upper longitudinal beam 1 through the connecting part 28.

[0083] The front suspension sleeve 11 is connected to the front crossbeam 7 via the front suspension bracket 10.

[0084] Specifically, the H-arm front mounting bracket 4 features a flanged structure to further enhance the stiffness at that point. The toe-in mounting bracket 6 overlaps with the lower longitudinal beam 2, and its flanged structure ensures the longitudinal and lateral stiffness of the toe-in mounting point meets the chassis adjustment requirements. The H-arm rear mounting bracket 5, at its overlap with the lower longitudinal beam 2, also features a flanged structure, enabling parallel welding to the lower longitudinal beam 2. This avoids stress concentration at the weld caused by vertical overlap, reduces the stress level at the weld location under durability conditions, and improves the fatigue life of the weld at the corresponding location.

[0085] Example 2

[0086] This embodiment provides a car, including:

[0087] The multi-link rear-drive subframe without a central crossbeam in this embodiment 1.

[0088] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A multi-link rear-wheel drive subframe without a central crossbeam, characterized in that, It includes a main frame and multiple mounting components, wherein the multiple mounting components are fixedly connected to the main frame; The main frame includes a front crossbeam (7), a rear crossbeam (8), a pair of upper longitudinal beams (1) and a pair of lower longitudinal beams (2). The front crossbeam (7) and the rear crossbeam (8) are arranged opposite to each other, and the pair of upper longitudinal beams (1) are arranged opposite to each other. The front crossbeam (7), the rear crossbeam (8) and the pair of upper longitudinal beams (1) are connected to form a U-shape. The pair of lower longitudinal beams (2) are arranged opposite to each other below the pair of upper longitudinal beams (1). The front end of the lower longitudinal beam (2) is connected to the front crossbeam (7), and the rear end of the lower longitudinal beam (2) is connected to the rear crossbeam (8). The distance between the front ends of the pair of lower longitudinal beams (2) is greater than the distance between the rear ends of the pair of lower longitudinal beams (2).

2. The multi-link rear-wheel drive subframe without a central crossbeam according to claim 1, characterized in that, The main framework also includes: A pair of upper diagonal braces (9) are provided at the first corner formed by the connection between the front crossbeam (7) and the upper longitudinal beam (1). One end of the upper diagonal brace (9) is connected to the front crossbeam (7), and the other end of the upper diagonal brace (9) is connected to the upper longitudinal beam (1). A pair of lower diagonal braces (14) are provided at the second corner formed by the connection between the front crossbeam (7) and the lower longitudinal beam (2). One end of the lower diagonal brace (14) is connected to the front crossbeam (7), and the other end of the lower diagonal brace (14) is connected to the lower longitudinal beam (2).

3. The multi-link rear-wheel drive subframe without a central crossbeam according to claim 2, characterized in that, One end of the upper diagonal brace (9) is formed with a first flange (17), which is connected to the front crossbeam (7). The other end of the upper diagonal brace (9) is formed with a second flange (18), which is connected to the upper longitudinal beam (1). One end of the lower diagonal brace (14) has a third flange (19) which is connected to the front crossbeam (7), and the other end of the lower diagonal brace (14) has a fourth flange (20) which is connected to the lower longitudinal beam (2).

4. The multi-link rear-wheel drive subframe without a central crossbeam according to claim 1, characterized in that, The upper longitudinal beam (1) has an upwardly protruding upper curved portion (25), and the lower longitudinal beam (2) has a downwardly protruding lower curved portion (26), forming a clearance space between the upper longitudinal beam (1) and the lower longitudinal beam (2).

5. The multi-link rear-drive subframe without intermediate crossbeam according to claim 4, characterized in that, The lower part of the lower curved portion (26) is provided with a groove (27).

6. The multi-link rear-wheel drive subframe without a central crossbeam according to claim 1, characterized in that, The front crossbeam (7), the rear crossbeam (8), the upper longitudinal beam (1), and the lower longitudinal beam (2) are all tubular.

7. The multi-link rear-wheel drive subframe without a central crossbeam according to claim 1, characterized in that, The plurality of mounting components include: a camber bar mounting bracket (3), a pair of H-arm front point mounting brackets (4), a pair of H-arm rear point mounting brackets (5), a pair of toe-in link mounting brackets (6), a front suspension sleeve (11), a pair of subframe front mounting sleeves (15), a pair of subframe rear mounting sleeves (16), a pair of stabilizer bar mounting brackets (12), and a pair of rear suspension brackets (13); The camber rod mounting bracket (3) is provided with camber rod mounting holes, the H-arm front point mounting bracket (4) is provided with H-arm front point mounting holes, the H-arm rear point mounting bracket (5) is provided with H-arm rear point mounting holes, the toe-in connecting rod mounting bracket (6) is provided with toe-in connecting rod mounting holes, the stabilizer bar mounting bracket (12) is provided with stabilizer bar mounting holes, and the rear suspension bracket (13) is provided with rear suspension mounting holes.

8. The multi-link rear-wheel drive subframe without a central crossbeam according to claim 7, characterized in that, The outward tilt rod mounting bracket (3) is fixedly connected to the middle part of the upper longitudinal beam (1); A pair of H-arm front mounting brackets (4) are connected to the outside of the main frame. The H-arm front mounting brackets (4) are connected to the upper longitudinal beam (1), the lower longitudinal beam (2) and the front cross beam (7). The H-arm rear point mounting bracket (5) is located between the upper longitudinal beam (1) and the lower longitudinal beam (2). The lower end of the mounting bracket (5) is connected to the lower longitudinal beam (2), and the upper end of the mounting bracket (5) is connected to the upper longitudinal beam (1). The toe-in mounting bracket (6) is connected to the front of the lower longitudinal beam (2); The front suspension sleeve (11) is fixedly connected to the middle part of the front crossbeam (7); A pair of the subframe front mounting sleeves (15) are connected to both ends of the front crossbeam (7); A pair of said subframe rear mounting sleeves (16) are connected to the rear ends of a pair of said upper longitudinal beams (1); One end of the stabilizer bar mounting bracket (12) is connected to the rear mounting sleeve (16) of the subframe, and the other end of the stabilizer bar mounting bracket (12) is connected to the rear crossbeam (8); A pair of rear suspension brackets (13) are spaced apart and connected to the middle of the rear crossbeam (8).

9. The multi-link rear-wheel drive subframe without a central crossbeam according to claim 8, characterized in that, The H-arm front mounting bracket (4) has a fifth flange (21), a sixth flange (22) and a seventh flange (23). The fifth flange (21) is connected to the upper longitudinal beam (1), the sixth flange (22) is connected to the lower longitudinal beam (2), and the seventh flange (23) is connected to the front crossbeam (7). The lower end of the mounting bracket (5) has an eighth flange (24), which is connected to the lower longitudinal beam (2). The upper end of the mounting bracket (5) is connected to the upper longitudinal beam (1) through a connecting part (28). The front suspension sleeve (11) is connected to the front crossbeam (7) via the front suspension bracket (10).

10. An automobile characterized by comprising: include: The multi-link rear-drive subframe without intermediate crossbeam as described in any one of claims 1-9.

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