Auxiliary frame assembly and vehicle

Abstract

The utility model provides an auxiliary frame assembly and a vehicle, the auxiliary frame assembly comprises an auxiliary frame, a stabilizer bar and a swing arm, and the stabilizer bar and the swing arm are arranged on the auxiliary frame; the stabilizer bar is connected to an auxiliary frame longitudinal beam in the auxiliary frame through the stabilizer bar mounting seat, and one end of the swing arm is connected to the auxiliary frame longitudinal beam through the swing arm mounting support. Wherein the stabilizer bar installation seat is connected to the top of the auxiliary frame longitudinal beam, the swing arm installation support is connected to the bottom of the auxiliary frame longitudinal beam, and the stabilizer bar installation seat and the swing arm installation support are arranged in a front-back staggered mode from the vertical direction of the whole vehicle. According to the auxiliary frame assembly, the installation points of the stabilizer bar and the swing arm are staggered, and the stabilizer bar and the swing arm are installed through the independent installation pieces, so that the influence of sharing of the installation points on the arrangement compactness of the stabilizer bar can be avoided, and meanwhile tolerance accumulation of the stabilizer bar, the swing arm and the auxiliary frame caused by sharing of the installation points can be avoided; and the problems of connection force attenuation, loosening, abnormal sound and the like can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle parts, and in particular to a subframe assembly. Meanwhile, the utility model also relates to a vehicle provided with the subframe assembly. Background Art

[0002] The vehicle stabilizer bar is an auxiliary elastic element in the automobile suspension. Its function is to prevent the vehicle body from excessive lateral side thrust when turning, in order to prevent the vehicle from lateral rollover and improve ride comfort. It is generally placed horizontally at the front and rear ends of the vehicle, with both ends fixed on the suspension. When the vehicle only moves vertically (and accelerates and decelerates front and rear), the suspension deformations on both sides are the same and the lateral stabilizer bar does not work. When the vehicle body thrusts sideways, the suspension vibrations on both sides are inconsistent, the lateral stabilizer bar twists, and the elastic force of the bar body becomes a resistance to the side thrust, playing a role in lateral stability.

[0003] However, due to the limitations of the existing layout of the vehicle stabilizer bar on the vehicle body, the layout around the stabilizer bar on the subframe assembly is relatively loose, the surrounding components are easily arranged, and after the stabilizer bar is assembled on the body, it is easy for the tolerance of the parts to accumulate, resulting in connection failures such as bolt preload attenuation, loosening, and abnormal noise during vehicle use. Utility Model Content

[0004] In view of this, the utility model aims to provide a subframe assembly to optimize the arrangement of a stabilizer bar on a vehicle body.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] A subframe assembly comprises a subframe, and a stabilizer bar and a swing arm arranged on the subframe;

[0007] The stabilizer bar is connected to the subframe longitudinal beam in the subframe through a stabilizer bar mounting seat, and one end of the swing arm is connected to the subframe longitudinal beam through a swing arm mounting bracket;

[0008] The stabilizer bar mounting seat is connected to the top of the sub-frame longitudinal beam, the swing arm mounting bracket is connected to the bottom of the sub-frame longitudinal beam, and from the up and down direction of the vehicle, the stabilizer bar mounting seat and the swing arm mounting bracket are staggered front and back.

[0009] Furthermore, the stabilizer bar mounting seat is connected to the sub-frame longitudinal beam via a first connecting assembly, and the swing arm mounting bracket is connected to the sub-frame longitudinal beam via a second connecting assembly.

[0010] Furthermore, the first connecting component and the second connecting component both adopt a screw connection structure.

[0011] Furthermore, the subframe longitudinal beam comprises an upper longitudinal beam plate and a lower longitudinal beam plate which are buckled and connected together, and a mounting sleeve is connected between the upper longitudinal beam plate and the lower longitudinal beam plate;

[0012] The stabilizer bar mounting seat is connected to the longitudinal beam upper plate through the first connecting component, and the swing arm mounting bracket is connected to the mounting sleeve through the second connecting component.

[0013] Furthermore, a steering gear is provided on the subframe;

[0014] The stabilizer bar mounting seat is arranged along the front-to-rear direction of the vehicle, the first connecting component includes a front connecting component located at the front end of the stabilizer bar mounting seat, and the front connecting component is located below the steering gear, and a front mounting through hole corresponding to the arrangement of the front connecting component is provided on the lower plate of the longitudinal beam.

[0015] Furthermore, the first connecting component includes a rear connecting component located at the rear end of the stabilizer bar mounting seat, the swing arm mounting bracket is located below the rear connecting component, and the swing arm mounting bracket is provided with a rear mounting through-hole arranged corresponding to the rear connecting component, and the rear mounting through-hole is also set through the lower plate of the longitudinal beam.

[0016] Furthermore, a body connection bracket connected to the body is provided at the middle of the subframe longitudinal beam along the front-rear direction of the vehicle, the body connection bracket is provided with a connection bolt for connecting to the body, and a release portion is provided at the setting position of the connection bolt;

[0017] The escape portion is used to guide the connecting bolt to escape from the vehicle body connecting bracket when the vehicle collides.

[0018] Furthermore, the body connection bracket extends upward along the vertical direction of the vehicle, and a connection sleeve is provided on the top of the body connection bracket;

[0019] The connecting bolt is arranged in the connecting sleeve, and the escape portion comprises an escape groove arranged on the side wall of the connecting sleeve, and the escape groove is located on a side of the connecting sleeve facing the front of the vehicle.

[0020] Furthermore, a reduced diameter section is provided on the auxiliary frame longitudinal beam, the reduced diameter section is arranged close to the vehicle body connecting bracket, and the radial dimension of the reduced diameter section is smaller than the radial dimension of other positions of the auxiliary frame longitudinal beam.

[0021] Compared with the prior art, the utility model has the following advantages:

[0022] The subframe assembly described in the utility model can avoid the influence of the common installation point on the compactness of the arrangement of the stabilizer bar by staggering the installation points of the stabilizer bar and the swing arm, and can also avoid the accumulation of tolerances of the stabilizer bar, the swing arm and the subframe due to the common installation point, which helps to avoid the problems of connection force attenuation, loosening and abnormal noise.

[0023] In addition, by connecting the stabilizer bar mounting seat and the swing arm mounting bracket to the subframe longitudinal beam through different connecting components, it is possible to avoid the two sharing a common connecting structure, resulting in accumulation of component tolerances, and to help avoid problems such as connection force attenuation, loosening, and abnormal noise in the connecting structure. In addition, by using a screw connection structure for the connecting component, the structure is simple and the reliability of the connection between the stabilizer bar mounting seat and the swing arm mounting bracket can be ensured.

[0024] In addition, by connecting the stabilizer bar mounting seat to the longitudinal beam upper plate and the swing arm mounting bracket to the mounting sleeve, the stabilizer bar mounting seat and the swing arm mounting bracket can be connected to the sub-frame longitudinal beam respectively, which helps to arrange the stabilizer bar and the swing arm in the sub-frame. In addition, by providing a front mounting through hole on the longitudinal beam lower plate, the connection operation of the front connecting assembly can be facilitated.

[0025] Secondly, by providing rear mounting holes on the swing arm mounting bracket and the lower plate of the longitudinal beam, the connection operation of the rear connecting assembly can be facilitated. In addition, by providing a release portion, the connection between the middle part of the subframe and the vehicle body can be disconnected when the vehicle collides, which helps to achieve the bending deformation of the subframe longitudinal beam to better absorb the collision energy, and is also conducive to driving the stabilizer bar and steering gear to slide downward, reducing the intrusion into the passenger compartment, and can improve collision safety.

[0026] Furthermore, by setting the connecting bolt in the connecting sleeve and making the escape portion adopt an escape groove set on the connecting sleeve, the structure is simple and easy to design and form. The escape groove is located on the side of the connecting sleeve facing the front of the vehicle, which is also beneficial to ensure the escape effect of the connecting bolt during a collision.

[0027] By providing a reduced diameter section with the smallest radial dimension on the longitudinal beam of the subframe, when the connection between the body connection bracket and the body is disconnected, the middle part of the longitudinal beam of the subframe can be bent and deformed, so as to drive the steering gear, stabilizer bar, etc. to move downward, reduce the mutual squeezing between the parts and the intrusion into the passenger compartment, and help improve the collision safety performance of the vehicle.

[0028] Another object of the present invention is to provide a vehicle, on which the subframe assembly as described above is provided.

[0029] The vehicle described in the utility model has the same technical effects as the above-mentioned subframe assembly compared with the prior art, and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0031] Figure 1 It is a structural schematic diagram of a sub-frame assembly according to an embodiment of the utility model from one perspective;

[0032] Figure 2 for Figure 1 A magnified view of part A;

[0033] Figure 3 A schematic structural diagram of the subframe assembly according to an embodiment of the utility model from another perspective;

[0034] Figure 4 for Figure 3 A magnified view of part B;

[0035] Figure 5 A top view of a partial structure of a subframe assembly according to an embodiment of the utility model;

[0036] Figure 6 for Figure 5 Cross-sectional view in CC direction;

[0037] Figure 7 A structural schematic diagram of the subframe assembly according to an embodiment of the utility model from another perspective;

[0038] Figure 8 for Figure 7 Magnified view of part D.

[0039] Description of reference numerals:

[0040] 1. Subframe; 101. Subframe longitudinal beam; 1011. Longitudinal beam upper plate; 1012. Longitudinal beam lower plate; 1013. Reduced diameter section; 2. Stabilizer bar; 3. Swing arm; 4. Stabilizer bar mounting seat; 5. Swing arm mounting bracket; 6. First connecting component; 601. Front connecting component; 602. Rear connecting component; 7. Second connecting component; 8. Mounting sleeve; 9. Steering gear; 10. Front mounting through hole; 11. Rear mounting through hole; 12. Vehicle body connecting bracket; 13. Connecting bolt; 14. Connecting sleeve; 15. Escape groove. DETAILED DESCRIPTION

[0041] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0042] In the description of the present invention, it should be noted that if there are terms such as "upper", "lower", "inner", "outer" and the like indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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 therefore cannot be understood as limiting the present invention. In addition, if there are terms such as "first" and "second", they are also used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0043] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection" and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0044] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0045] Embodiment 1

[0046] This embodiment relates to a subframe assembly, which can be, for example, a front subframe assembly in a vehicle, and in terms of overall structure, is combined with Figure 1 As shown in FIG. 1 , the subframe assembly includes a subframe 1 , and a stabilizer bar 2 and a swing arm 3 arranged on the subframe 1 .

[0047] The stabilizer bar 2 is connected to the sub-frame longitudinal beam 101 in the sub-frame 1 through the stabilizer bar mounting seat 4, and one end of the swing arm 3 is connected to the sub-frame longitudinal beam 101 through the swing arm mounting bracket 5. Moreover, the stabilizer bar mounting seat 4 is connected to the top of the sub-frame longitudinal beam 101, and the swing arm mounting bracket 5 is connected to the bottom of the sub-frame longitudinal beam 101. At the same time, from the vertical direction of the whole vehicle, the stabilizer bar mounting seat 4 and the swing arm mounting bracket 5 are staggered in front and back.

[0048] At this time, as set above, by staggering the mounting points of the stabilizer bar 2 and the swing arm 3, and both are installed with separate mounting parts, this embodiment can avoid the impact of the common mounting point on the compactness of the arrangement of the stabilizer bar 2, and also avoid the accumulation of tolerances of the stabilizer bar 2, the swing arm 3 and the subframe 1 due to the common mounting point, thereby helping to avoid problems such as connection force attenuation, loosening and abnormal noise.

[0049] Based on the above overall introduction, specifically, as a preferred implementation method, Figure 2As shown in the figure, in this embodiment, the stabilizer bar mounting seat 4 is arranged closer to the front of the vehicle than the swing arm mounting bracket 5, which is conducive to making the sub-frame assembly more compact in the length direction of the vehicle and reducing the weight of the sub-frame assembly compared to the common mounting point of the stabilizer bar 2 and the swing arm 3 in the prior art. In addition, after the mounting points of the stabilizer bar 2 and the swing arm 3 are staggered, the stabilizer bar 2 occupies less space in the height direction of the vehicle, which is conducive to leaving space for the arrangement of parts above the stabilizer bar 2.

[0050] Of course, in this embodiment, the stabilizer bar mounting base 4 is arranged closer to the front of the vehicle than the swing arm mounting bracket 5, which is only a preferred implementation. In other embodiments, the swing arm mounting bracket 5 can also be arranged closer to the front of the vehicle than the stabilizer bar mounting base 4.

[0051] As a preferred implementation, in this embodiment, the stabilizer bar mounting seat 4 is connected to the sub-frame longitudinal beam 101 through the first connecting assembly 6, and the swing arm mounting bracket 5 is connected to the sub-frame longitudinal beam 101 through the second connecting assembly 7. It can be understood that by connecting the stabilizer bar mounting seat 4 and the swing arm mounting bracket 5 to the sub-frame longitudinal beam 101 through different connecting assemblies, it is possible to avoid the two sharing a common connection structure, resulting in the accumulation of component tolerances, and helping to avoid problems such as connection force attenuation, loosening, and abnormal noise in the connection structure.

[0052] In the specific implementation, as a preferred embodiment, each connection assembly adopts a screw connection structure. By making the connection assembly adopt a screw connection structure, the structure is simple and the reliability of the connection between the stabilizer bar mounting seat 4 and the swing arm mounting bracket 5 can be ensured. Of course, making each connection assembly adopt a screw connection structure is only a preferred implementation method. In addition, the connection assembly can also use other connection structures commonly used in the prior art, such as welding, etc., which is conducive to ensuring the reliability of the connection between the stabilizer bar mounting seat 4 and the swing arm mounting bracket 5 and the auxiliary frame longitudinal beam 101.

[0053] As a better setting, Figure 5 and Figure 6 As shown in , in this embodiment, the subframe longitudinal beam 101 includes a longitudinal beam upper plate 1011 and a longitudinal beam lower plate 1012 that are buckled and connected together, and a mounting sleeve 8 is connected between the longitudinal beam upper plate 1011 and the longitudinal beam lower plate 1012. The stabilizer bar mounting seat 4 is connected to the longitudinal beam upper plate 1011 through the first connecting component 6, and the swing arm mounting bracket 5 is connected to the mounting sleeve 8 through the second connecting component 7. By connecting the stabilizer bar mounting seat 4 to the longitudinal beam upper plate 1011 and the swing arm mounting bracket 5 to the mounting sleeve 8, the connection between the stabilizer bar mounting seat 4 and the swing arm mounting bracket 5 and the subframe longitudinal beam 101 can be achieved respectively, which helps to realize the arrangement of the stabilizer bar 2 and the swing arm 3 in the subframe 1.

[0054] As a preferred example, Figure 3 , Figure 4 and Figure 6 As shown in , in this embodiment, a steering gear 9 is provided on the subframe 1. The stabilizer bar mounting seat 4 is arranged along the front-to-rear direction of the vehicle, and the first connecting assembly 6 includes a front connecting assembly 601 located at the front end of the stabilizer bar mounting seat 4, and the front connecting assembly 601 is located below the steering gear 9, and a front mounting through hole 10 arranged corresponding to the front connecting assembly 601 is provided on the lower plate 1012 of the longitudinal beam. It can be expected that by making the front connecting assembly 601 located below the steering gear 9, it is beneficial to improve the compactness of the subframe assembly in the length direction of the vehicle, and by providing the front mounting through hole 10 on the lower plate 1012 of the longitudinal beam, the connection operation of the front connecting assembly 601 can be facilitated.

[0055] As a preferred example, Figure 3 , Figure 4 and Figure 6 As shown in , the first connection assembly 6 includes a rear connection assembly 602 located at the rear end of the stabilizer bar mounting seat 4, the swing arm mounting bracket 5 is located below the rear connection assembly 602, and the swing arm mounting bracket 5 is provided with a rear mounting through hole 11 arranged corresponding to the rear connection assembly 602, and the rear mounting through hole 11 is also set through the longitudinal beam lower plate 1012. By providing the rear mounting through hole 11 on the swing arm mounting bracket 5 and the longitudinal beam lower plate 1012, the connection operation of the rear connection assembly 602 can be facilitated.

[0056] It should be noted that the front connection assembly 601 and the rear connection assembly 602 can be bolts commonly used in the prior art, and after passing through the longitudinal beam upper plate 1011 and the stabilizer bar mounting seat 4, the bolts can be connected with nuts provided on the stabilizer bar mounting seat 4, so as to realize the connection between the stabilizer bar mounting seat 4 and the longitudinal beam upper plate 1011. In addition, the second connection assembly 7 can also include bolts commonly used in the prior art, and after passing through the swing arm mounting bracket 5 and the longitudinal beam lower plate 1012, the bolts are connected with the mounting sleeve 8.

[0057] As a preferred implementation method, Figure 7 As shown in the figure, in this embodiment, a body connection bracket 12 connected to the body is provided at the middle of the subframe longitudinal beam 101 along the front-rear direction of the vehicle, and a connection bolt 13 for connecting to the body is provided on the body connection bracket 12, and a release portion is provided at the location where the connection bolt 13 is provided. The release portion is used to guide the connection bolt 13 to be released from the body connection bracket 12 when the vehicle collides.

[0058] It can be expected that by providing the breakaway portion, the connection between the middle portion of the subframe 1 and the vehicle body can be disconnected when the vehicle collides, which helps to achieve the bending deformation of the subframe longitudinal beam 101 to better absorb the collision energy, and is also conducive to driving the stabilizer bar 2 and the steering gear 9 to slide downward, reducing the amount of intrusion into the passenger compartment, and can improve collision safety.

[0059] In specific implementation, as preferred, Figure 8 As shown in the figure, in this embodiment, the vehicle body connection bracket 12 extends upward along the vertical direction of the vehicle, and a connection sleeve 14 is provided on the top of the vehicle body connection bracket 12. The connection bolt 13 is arranged in the connection sleeve 14, and the escape portion includes an escape groove 15 arranged on the side wall of the connection sleeve 14, and the escape groove 15 is located on the side of the connection sleeve 14 facing the front of the vehicle.

[0060] It is understandable that by setting the connecting bolt 13 in the connecting sleeve 14 and making the escape portion adopt the escape groove 15 set on the connecting sleeve 14, the structure is simple and easy to design and form, and the escape groove 15 is located on the side of the connecting sleeve 14 facing the front of the vehicle, which is also conducive to ensuring the escape effect of the connecting bolt 13 during a collision. In addition, in addition to setting the connecting sleeve 14, of course, other similar structures are set on the top of the vehicle body connecting bracket 12, such as directly forming a connecting hole on the top of the vehicle body connecting bracket 12, and setting the escape groove 15 that penetrates the connecting hole, so as to set the connecting bolt 13 and enable the connecting bolt 13 to escape during a collision, which is also possible.

[0061] As a preferred implementation method, Figure 7 As shown in , in this embodiment, a reduced diameter section 1013 is provided on the sub-frame longitudinal beam 101 , and the reduced diameter section 1013 is arranged close to the vehicle body connecting bracket 12 , and the radial dimension of the reduced diameter section 1013 is smaller than the radial dimension of other positions of the sub-frame longitudinal beam 101 .

[0062] By providing the reduced diameter section 1013 with the smallest radial dimension on the sub-frame longitudinal beam 101, when the connection between the body connection bracket 12 and the body is disconnected, it is beneficial to cause the middle part of the sub-frame longitudinal beam 101 to bend and deform, so as to drive the steering gear 9, the stabilizer bar 2, etc. to move downward, reduce the mutual compression between the various parts and the amount of intrusion into the passenger compartment, and help improve the collision safety performance of the vehicle. In addition, in specific implementation, it is preferred that the reduced diameter section 1013 is located in front of the body connection bracket 12.

[0063] The sub-frame assembly of the present embodiment can avoid the influence of the common installation point on the compactness of the arrangement of the stabilizer bar 2 and the common connection structure of the stabilizer bar 2 and the swing arm 3, thereby avoiding the accumulation of component tolerances due to the common connection structure of the stabilizer bar 2 and the swing arm 3, and helping to avoid the problems of connection force attenuation, loosening, and abnormal noise.

[0064] Embodiment 2

[0065] This embodiment relates to a vehicle, in which the subframe assembly of the first embodiment is provided.

[0066] The vehicle of this embodiment has the same technical effect as the subframe assembly of the first embodiment compared with the prior art, and will not be described in detail here.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A subframe assembly, characterized in that: It comprises a subframe (1), and a stabilizer bar (2) and a swing arm (3) arranged on the subframe (1); The stabilizer bar (2) is connected to the sub-frame longitudinal beam (101) in the sub-frame (1) via a stabilizer bar mounting seat (4), and one end of the swing arm (3) is connected to the sub-frame longitudinal beam (101) via a swing arm mounting bracket (5); The stabilizer bar mounting seat (4) is connected to the top of the auxiliary frame longitudinal beam (101), the swing arm mounting bracket (5) is connected to the bottom of the auxiliary frame longitudinal beam (101), and when viewed from the vertical direction of the vehicle, the stabilizer bar mounting seat (4) and the swing arm mounting bracket (5) are arranged in a front-to-back staggered manner.

2. The subframe assembly according to claim 1, characterized in that: The stabilizer bar mounting seat (4) is connected to the auxiliary frame longitudinal beam (101) via a first connecting assembly (6), and the swing arm mounting bracket (5) is connected to the auxiliary frame longitudinal beam (101) via a second connecting assembly (7).

3. The subframe assembly according to claim 2, characterized in that: The first connecting component (6) and the second connecting component (7) both adopt a screw connection structure.

4. The subframe assembly according to claim 3, characterized in that: The auxiliary frame longitudinal beam (101) comprises a longitudinal beam upper plate (1011) and a longitudinal beam lower plate (1012) which are buckled and connected together, and a mounting sleeve (8) is connected between the longitudinal beam upper plate (1011) and the longitudinal beam lower plate (1012); The stabilizer bar mounting seat (4) is connected to the longitudinal beam upper plate (1011) via the first connecting component (6), and the swing arm mounting bracket (5) is connected to the mounting sleeve (8) via the second connecting component (7).

5. The subframe assembly according to claim 4, characterized in that: The auxiliary frame (1) is provided with a steering gear (9); The stabilizer bar mounting seat (4) is arranged along the front-to-rear direction of the vehicle, the first connecting component (6) includes a front connecting component (601) located at the front end of the stabilizer bar mounting seat (4), and the front connecting component (601) is located below the steering gear (9), and a front mounting through hole (10) corresponding to the arrangement of the front connecting component (601) is provided on the lower plate (1012) of the longitudinal beam.

6. The subframe assembly according to claim 5, characterized in that: The first connecting component (6) includes a rear connecting component (602) located at the rear end of the stabilizer bar mounting seat (4), the swing arm mounting bracket (5) is located below the rear connecting component (602), and the swing arm mounting bracket (5) is provided with a rear mounting through hole (11) arranged corresponding to the rear connecting component (602), and the rear mounting through hole (11) is also set through the lower plate (1012) of the longitudinal beam.

7. The subframe assembly according to any one of claims 1 to 6, characterized in that: A vehicle body connection bracket (12) connected to the vehicle body is provided at the middle of the auxiliary frame longitudinal beam (101) along the front-rear direction of the vehicle, the vehicle body connection bracket (12) is provided with a connection bolt (13) for connecting to the vehicle body, and a release portion is provided at the setting position of the connection bolt (13); The disengagement portion is used to guide the connection bolt (13) to disengage from the vehicle body connection bracket (12) when the vehicle collides.

8. The subframe assembly according to claim 7, characterized in that: The vehicle body connection bracket (12) extends upward along the vertical direction of the vehicle, and a connection sleeve (14) is provided on the top of the vehicle body connection bracket (12); The connecting bolt (13) is arranged in the connecting sleeve (14), and the escape portion comprises an escape groove (15) arranged on the side wall of the connecting sleeve (14), and the escape groove (15) is located on the side of the connecting sleeve (14) facing the front of the vehicle.

9. The subframe assembly according to claim 7, characterized in that: The auxiliary frame longitudinal beam (101) is provided with a reduced diameter section (1013), the reduced diameter section (1013) is arranged close to the vehicle body connection bracket (12), and the radial dimension of the reduced diameter section (1013) is smaller than the radial dimension of other positions of the auxiliary frame longitudinal beam (101).

10. A vehicle, characterized in that: The vehicle is provided with the subframe assembly according to any one of claims 1 to 9.

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