Auxiliary frame assembly and vehicle

Abstract

The utility model provides an auxiliary frame assembly and a vehicle, and belongs to the technical field of vehicle lower structures, the auxiliary frame assembly comprises an auxiliary frame and a power assembly support arranged on the auxiliary frame; the auxiliary frame comprises first beam bodies which are oppositely arranged in the first direction, second beam bodies which are oppositely arranged in the second direction, and a plurality of mounting parts which are used for mounting the auxiliary frame on a vehicle body; the power assembly support is provided with a first sleeve and a second sleeve, the first sleeve is arranged in the first direction and used for installing the suspension lining, the second sleeve at least corresponds to part of the installation part, and the second sleeve is arranged in the third direction and used for installing the auxiliary frame lining. According to the auxiliary frame assembly, the second sleeve at least corresponds to part of the installation part, the second sleeve is arranged in the third direction, and the auxiliary frame lining is installed on the second sleeve, so that the power assembly support and the auxiliary frame can share at least part of the auxiliary frame lining, the number of parts can be reduced, and the production cost can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of vehicle substructure technology, and in particular to a subframe assembly; it also relates to a vehicle equipped with the subframe assembly. Background Technology

[0002] The subframe assembly is an important component of the automotive chassis system. Its main function is to support the vehicle's powertrain (such as the drive motor) and suspension components, and to transmit and distribute forces and vibrations from the road surface and the powertrain.

[0003] The subframe is connected to the vehicle body via subframe bushings mounted on it. The powertrain mounting bracket serves as the main load-bearing structure for the powertrain and is equipped with multiple suspension bushings for connection to the powertrain. Currently, the suspension bushings and subframe bushings are designed and arranged independently, resulting in a large variety and number of bushings on the subframe assembly, which in turn leads to higher production costs for the subframe assembly. Utility Model Content

[0004] In view of this, the present invention aims to provide a subframe assembly to reduce the number of parts and facilitate the reduction of production costs.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] A subframe assembly includes a subframe and a powertrain bracket mounted on the subframe;

[0007] The subframe includes a first beam arranged opposite to each other in a first direction, a second beam arranged opposite to each other in a second direction, and a plurality of mounting parts for mounting the subframe onto the vehicle body.

[0008] The powertrain bracket is provided with a first sleeve and a second sleeve. The first sleeve is arranged along the first direction and is used to install the suspension bushing. The second sleeve is arranged at least corresponding to a portion of the mounting part and is arranged along a third direction and is used to install the subframe bushing.

[0009] Furthermore, the powertrain bracket includes two bracket units that are correspondingly disposed on the two first beams; each bracket unit is provided with two first sleeves that are spaced apart; and / or, each bracket unit is provided with a second sleeve at both ends.

[0010] Furthermore, each of the support units includes an integrally formed support, or each of the support units includes a first frame and a second frame disposed opposite to each other, the first frame and the second frame being connected to the first beam, and the first frame and the second frame being respectively provided with the first sleeve and the second sleeve.

[0011] Furthermore, each of the support units includes an intermediate frame located between the first frame and the second frame; the intermediate frame and the first frame are connected to the first beam via the same connector, and the intermediate frame and the second frame are connected to the first beam via the same connector; and / or, a limiting part is provided between the first frame and the second frame to limit their relative positions in the first direction.

[0012] Furthermore, a positioning part is provided between the subframe and each of the support units, and the positioning part is used to position the support unit on the subframe.

[0013] Furthermore, the positioning part includes an arc-shaped positioning groove on the second beam and an arc-shaped protrusion on the support unit; the arc-shaped protrusion is inserted into the arc-shaped positioning groove and positions the support unit in the first direction and the second direction.

[0014] Furthermore, the second sleeve protrudes towards the side of the support unit closer to the first beam; and / or, each of the support units is attached to the subframe and has a clearance groove on the subframe for avoiding the first sleeve.

[0015] Furthermore, the subframe is integrally cast from aluminum alloy; and / or, the powertrain bracket is detachably connected to the first beam.

[0016] Furthermore, each of the second beams is provided with a mounting portion at both ends. The mounting portion includes a mounting cylinder on the second beam. One end of the mounting cylinder is open and the other end is provided with a mounting hole. The second sleeve is inserted into the corresponding mounting cylinder. The subframe is mounted on the vehicle body by fasteners passing through the mounting hole and the subframe bushing.

[0017] Compared with the prior art, this utility model has the following advantages:

[0018] The subframe assembly described in this utility model facilitates the installation of the powertrain on the powertrain bracket by setting a first sleeve and a second sleeve on the powertrain bracket. The second sleeve is set to correspond to at least part of the mounting part and is arranged along a third direction for installing the subframe bushing. This allows the powertrain bracket and the subframe to share at least part of the subframe bushing, which helps to reduce the number of parts and thus reduce the production cost of the subframe assembly.

[0019] Secondly, by setting two support units on the first beam, and each support unit having two spaced-apart first sleeves, the installation of the powertrain on the powertrain bracket is facilitated. By setting second sleeves at both ends of each support unit, the powertrain bracket and subframe can share four subframe bushings, further reducing the number of parts and lowering production costs. The one-piece molded bracket in the support unit improves its strength and installation efficiency. The cooperation between the first and second frames in the support unit allows for the placement of the support unit on first beams of different lengths, providing good versatility. The separate placement of first and second sleeves on the first and second frames also enhances the structural compactness of the support unit.

[0020] Furthermore, by connecting the first and second frames together with an intermediate frame, the structural strength of the support unit is enhanced. The intermediate and first frames are connected to the first beam via the same connector, and the intermediate and second beams are connected to the first beam via the same connector. This reduces the number of connectors, lowering costs and improving installation efficiency. The limiting part restricts the relative position of the first and second frames in the first direction, improving the connection reliability of the support unit. The positioning part for positioning the support unit on the subframe ensures accurate and precise installation, reducing the time spent adjusting the support unit's position and thus improving installation efficiency.

[0021] Furthermore, by using arc-shaped positioning grooves and arc-shaped protrusions to position the bracket unit in the first and second directions, the positioning effect of the entire bracket unit on the subframe is improved. Compared to solutions that use other positioning structures in the first and second directions respectively, this also simplifies the structure of the positioning part, thereby reducing production costs. The second sleeve protrudes to one side of the first beam, facilitating the arrangement of the arc-shaped positioning grooves and protrusions; it also allows the bracket unit to be attached to the subframe, reducing the space occupied by the subframe assembly, and the clearance grooves on the subframe help prevent interference between the subframe and the first sleeve.

[0022] Furthermore, the subframe is integrally cast from aluminum alloy, which not only facilitates processing and forming and provides high structural strength, but also allows for a lightweight design of the subframe assembly. The powertrain bracket is detachably connected to the first beam, facilitating disassembly and maintenance of both, thereby reducing maintenance costs. The open end of the mounting sleeve facilitates the installation of the second sleeve, providing a foundation for both to share a single subframe bushing. The mounting holes allow for fasteners to secure the powertrain bracket and subframe together to the vehicle body, further reducing production costs and improving installation efficiency.

[0023] In addition, another objective of this utility model is to provide a vehicle having the subframe assembly described above.

[0024] The vehicle described in this utility model, by setting up the subframe assembly as described above, helps to reduce the number of parts, thereby helping to reduce production costs. Attached Figure Description

[0025] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0026] Figure 1 This is a schematic diagram of the subframe assembly described in Embodiment 1 of this utility model;

[0027] Figure 2 This is a schematic diagram of the subframe structure described in Embodiment 1 of this utility model;

[0028] Figure 3 This is a schematic diagram of the support unit described in Embodiment 1 of this utility model;

[0029] Figure 4 This is a partial structural diagram of the subframe assembly described in Embodiment 1 of this utility model;

[0030] Figure 5 for Figure 4 Sectional view along direction AA in the middle;

[0031] Figure 6 for Figure 4 BB-direction sectional view;

[0032] Figure 7 This is a schematic diagram of the structure of the first frame described in Embodiment 1 of this utility model;

[0033] Figure 8 This is a schematic diagram of the support unit described in Embodiment 2 of this utility model;

[0034] Figure 9This is a schematic diagram of the structure of the first frame and the second frame as described in Embodiment 2 of this utility model;

[0035] Figure 10 This is a schematic diagram of the intermediate frame described in Embodiment 2 of this utility model;

[0036] Figure 11 This is a structural schematic diagram of the support unit described in Embodiment 3 of this utility model.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. Subframe; 2. Bracket unit; 3. Suspension bushing; 4. Subframe bushing;

[0039] 100. Second connecting hole; 101. First beam; 102. Second beam; 103. Mounting cylinder; 1031. Mounting hole; 1032. Arc-shaped positioning groove; 104. Clearance groove;

[0040] 200. First connecting hole; 201. First frame; 202. Second frame; 203. Intermediate frame; 2031. Third connecting hole; 2032. Positioning post; 204. Bracket; 205. First sleeve; 206. Second sleeve; 207. Extension part; 208. Positioning hole; 209. Arc-shaped protrusion; 210. Limiting protrusion. Detailed Implementation

[0041] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0042] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] In the description of this utility model, it should be noted that the directional terms used in this embodiment, such as "up," "down," "left," "right," "front," and "rear," are defined based on the vertical, horizontal, and longitudinal directions of the vehicle. Specifically, the vertical direction of the vehicle is the height direction (Z-axis), the longitudinal direction is the length direction (X-axis), and the horizontal direction is the width direction (Y-axis). Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

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

[0045] Example 1

[0046] This embodiment relates to a subframe assembly to solve the problem in the prior art where the suspension bushing 3 and the subframe bushing 4 are designed and manufactured separately, resulting in a large number of components and high production costs.

[0047] In terms of overall structure, the subframe assembly of this embodiment includes a subframe 1 and a powertrain bracket mounted on the subframe 1. The subframe 1 includes a first beam 101 arranged opposite to each other in a first direction, a second beam 102 arranged opposite to each other in a second direction, and a plurality of mounting parts for mounting the subframe 1 onto the vehicle body. The powertrain bracket is provided with a first sleeve 205 and a second sleeve 206. The first sleeve 205 is arranged along the first direction and is used to mount the suspension bushing 3. The second sleeve 206 is arranged at least corresponding to a portion of the mounting parts and is arranged along a third direction for mounting the subframe bushing 4.

[0048] The subframe assembly described in this embodiment facilitates the installation of the powertrain on the powertrain bracket by setting the first sleeve 205 and the second sleeve 206 on the powertrain bracket. The second sleeve 206 is set to at least correspond to a portion of the mounting part, and is arranged along a third direction for installing the subframe bushing 4. This allows the powertrain bracket and the subframe 1 to share at least a portion of the subframe bushing 4, which helps reduce the number of parts and thus reduces the production cost of the subframe assembly.

[0049] Based on the above overview, an exemplary structure of the subframe assembly described in this embodiment is as follows: Figure 1 As shown in the diagram, the subframe 1 is generally U-shaped, which is not only simple in structure and easy to implement, but also has good structural strength and stability. The powertrain bracket can be set at the top or bottom of the subframe 1 for mounting the powertrain. In this embodiment, the first direction can be the front-rear direction or the left-right direction of the vehicle, and the second direction is set perpendicular to the first direction. The following description uses the first direction as the front-rear direction of the vehicle, the second direction as the left-right direction of the vehicle, the third direction as the height direction of the vehicle, and the powertrain set at the bottom of the subframe 1 as an example to illustrate the structure of the subframe assembly.

[0050] In this embodiment, as Figure 2As shown, each of the second beams 102 has a mounting portion at both ends. The mounting portion includes a mounting cylinder 103 mounted on the second beam 102. One end of the mounting cylinder 103 is open, and the other end has a mounting hole 1031. A second sleeve 206 is inserted into the corresponding mounting cylinder 103. The subframe 1 is mounted on the vehicle body by fasteners passing through the mounting hole 1031 and the subframe bushing 4. The openness of the mounting cylinder 103 facilitates the installation of the second sleeve 206, providing a foundation for both to share a single subframe bushing 4. The mounting hole 1031 allows for the fasteners to mount the powertrain bracket and subframe 1 together on the vehicle body, reducing production costs and improving installation efficiency.

[0051] In terms of specific structure, the two ends of the second beam 102 are respectively inclined in the first direction away from the first beam 101 at the same end, so that the four mounting cylinders 103 are respectively located at the four corners of the subframe 1. The subframe 1 is installed on the vehicle body through the subframe bushing 4 in the second sleeve 206 inside the four mounting cylinders 103, which helps to ensure the installation stability of the subframe 1 and also helps to transmit and disperse the force from the four corners of the subframe 1 along the first and second directions.

[0052] As a preferred implementation method, such as Figure 1 As shown, the powertrain bracket includes two bracket units 2 that are correspondingly mounted on two first beams 101, and each bracket unit 2 is provided with two first sleeves 205 that are spaced apart. The two first sleeves 205 are spaced apart along the length of the first beams 101, and the powertrain is connected to the inner tube of the suspension bushing 3 along the first direction via a connector.

[0053] Here, by setting two support units 2 on the first beam 101, and setting two spaced first sleeves 205 on the support units 2, the powertrain can be mounted on the powertrain bracket through the suspension bushings 3 in each first sleeve 205, which has good connection stability. In addition, each support unit 2 has a second sleeve 206 at both ends, so that the powertrain bracket and the subframe 1 can share four subframe bushings 4, thereby reducing the number of parts and achieving the goal of reducing production costs.

[0054] As a possible implementation method, such as Figure 1 and Figure 3As shown, each support unit 2 includes a first frame 201 and a second frame 202 arranged opposite to each other. Both the first frame 201 and the second frame 202 are connected to the first beam 101, and the first frame 201 and the second frame 202 are respectively provided with a first sleeve 205 and a second sleeve 206. The cooperation between the first frame 201 and the second frame 202 in the support unit 2 facilitates the arrangement of the support unit 2 on the first beam 101 of different lengths, thus giving the powertrain support better versatility. The arrangement of the first sleeve 205 and the second sleeve 206 on the first frame 201 and the second frame 202 also helps to improve the compactness of the support unit 2.

[0055] Specifically, the first frame 201 and the second frame 202 are symmetrically arranged on the corresponding first beam 101, and the first sleeve 205 is disposed on the first frame 201 and the second frame 202 at the end corresponding to the first beam 101. Figure 1 Based on the perspective shown, the first frame 201 is located on the left and the second frame 202 is located on the right. A gap can be formed between the adjacent ends of the first frame 201 and the second frame 202, so that the first frame 201 and the second frame 202 can be arranged on the first beam 101 of different lengths, thereby improving the versatility and platformization of the powertrain support.

[0056] For example, when the first frame 201 and the second frame 202 are installed on the longer first beam 101, the distance between the first frame 201 and the second frame 202 increases. When the first frame 201 and the second frame 202 are installed on the shorter first beam 101, the distance between the first frame 201 and the second frame 202 decreases.

[0057] like Figure 1 As shown, both the first frame 201 and the second frame 202 have an extension portion 207 extending towards the end of the second beam 102 on the same side, with the extension portion 207 conforming to the end of the second beam 102. The second sleeve 206 is specifically located at the free end of the extension portion 207. This arrangement ensures that both the first frame 201 and the second frame 202 are mounted on the first beam 101 and the second beam 102, thereby enhancing the stability and structural toughness of the subframe 1 at its edge. Furthermore, it helps reduce vibration transmission, making the first frame 201 and the second frame 202 more stable after installation, less prone to deformation or loosening, and also improving aesthetics.

[0058] In this embodiment, refer to Figure 2As shown, the mounting cylinder 103 is located at the top of the end of the second beam 102. The top surface of the mounting cylinder 103 is coplanar with the top surface of the second beam 102, and the bottom surface of the mounting cylinder 103 is higher than the bottom surface of the second beam 102. The second sleeve 206 protrudes towards the side of the support unit 2 closer to the first beam 101, that is, the second sleeve 206 protrudes upward. This facilitates the insertion of the top of the second sleeve 206 into the mounting cylinder 103, thereby improving the sharing effect of the subframe bushing 4.

[0059] In this embodiment, a positioning part is provided between the subframe 1 and each support unit 2. The positioning part is used to position the support unit 2 on the subframe 1. This helps to ensure that the support unit 2 can be accurately and precisely installed on the subframe 1, reduces the time required to adjust the position of the support unit 2, and thus improves the installation efficiency of the support unit 2.

[0060] In a preferred embodiment, the positioning part in this example includes an arc-shaped positioning groove 1032 on the second beam 102 and an arc-shaped protrusion 209 on the support unit 2. The arc-shaped protrusion 209 is inserted into the arc-shaped positioning groove 1032 and positions the support unit 2 in the first and second directions. Here, by positioning the support unit 2 in the first and second directions using the arc-shaped positioning groove 1032 and the arc-shaped protrusion 209, the positioning effect of the entire support unit 2 on the subframe 1 is better. Compared with the scheme of setting other positioning structures separately in the first and second directions, it also simplifies the structure of the positioning part and thus helps to reduce production costs.

[0061] In terms of detailed structure, such as Figures 4 to 7 As shown, the arc-shaped positioning groove 1032 is disposed at the end of the second beam 102 and is coaxially arranged with the mounting cylinder 103. The arc-shaped protrusion 209 corresponds to the arc-shaped positioning groove 1032 and is disposed on the outer peripheral wall of the top of the second sleeve 206, and is coaxially arranged with the second sleeve 206. This results in the arc-shaped protrusion 209 and the connection between the second beam 102 having an "L"-shaped cross-section in both the first and second directions, providing a better positioning effect and facilitating machining.

[0062] During the installation of the second sleeve 206 within the mounting cylinder 103, as the second sleeve 206 is inserted into the second mounting cylinder 103, the arc-shaped protrusion 209 can be inserted into the corresponding arc-shaped positioning groove 1032. Once the second sleeve 206 is in place within the mounting cylinder 103, the top of the arc-shaped protrusion 209 abuts against the bottom of the top of the arc-shaped positioning groove 1032. Besides providing a positioning effect, the arc-shaped protrusion 209 and the arc-shaped positioning groove 1032 also facilitate the insertion of the second sleeve 206 into the mounting cylinder 103. The first frame 201 and the second frame 202 cannot move relative to the subframe 1 in either the first or second direction. It is understandable that, in addition to using the arc-shaped positioning groove 1032 and the arc-shaped protrusion 209 for positioning, other forms of positioning structures can be used, as long as the positioning requirements are met.

[0063] In addition, each bracket unit 2 is attached to the subframe 1, and the subframe 1 is provided with a clearance groove 104 for avoiding the first sleeve 205. This arrangement, with the bracket unit 2 attached to the subframe 1, helps reduce the space occupied by the subframe assembly, and the clearance groove 104 on the subframe 1 helps prevent interference between the subframe 1 and the first sleeve 205. Figure 2 As shown, the top surfaces of the first frame 201 and the second frame 202 are both attached to the first beam 101 and the second beam 102. The clearance groove 104 is arc-shaped to allow the top of the first sleeve 205 to pass. The clearance groove 104 also helps to further prevent the first frame 201 and the second frame 202 from moving relative to the subframe 1 in the second direction, thereby further improving the installation stability of the powertrain bracket on the subframe 1.

[0064] In this embodiment, the powertrain bracket and the first beam 101 are detachably connected, which facilitates disassembly and maintenance of both, thereby reducing maintenance costs. As a feasible connection method, such as... Figure 2 and Figure 3 As shown, both the first frame 201 and the second frame 202 have a first connecting hole 200 at the end away from the second sleeve 206. The first beam 101 has a second connecting hole 100 corresponding to the first connecting holes 200, and the second connecting holes 100 are threaded holes. Connecting components, such as bolts, pass through the first connecting holes 200 in a third direction and are screwed into the corresponding second connecting holes 100. The ends of the first frame 201 and the second frame 202 with the second sleeve 206 are connected to the vehicle body together with the subframe bushing 4, fasteners, and the subframe 1.

[0065] In this embodiment, the first connecting hole 200, the second connecting hole 100, and the bolt have a simple structure, are easy to install and disassemble, and have low production costs. Of course, in specific implementations, the number of the first connecting hole 200 and the second connecting hole 100 can be increased according to usage requirements.

[0066] Furthermore, in this embodiment, the subframe 1 is integrally cast from aluminum alloy. This utilizes the significant advantages of aluminum alloy—low density and light weight—to reduce the weight of the subframe 1, thereby lowering the overall vehicle weight, improving fuel economy, and enhancing vehicle handling performance. Simultaneously, the integral casting process ensures high structural integrity of the subframe 1, thus improving its machining precision. In this embodiment, the first frame 201 and the second frame 202 are also integrally cast from aluminum alloy, further facilitating the lightweight design of the subframe assembly.

[0067] Furthermore, in this embodiment, the first sleeve 205 and the second sleeve 206 have the same specifications, as do the suspension bushing 3 and the subframe bushing 4. This helps to further reduce the types of parts, improve the versatility of parts, reduce production costs, and improve platform efficiency.

[0068] In this embodiment, the subframe assembly utilizes the first sleeve 205 and the second sleeve 206 on the first frame 201 and the second frame 202 of the powertrain bracket. The second sleeve 206 corresponds to each mounting sleeve 103 of the subframe 1, allowing the subframe 1 and the powertrain bracket to share four subframe bushings 4. This reduces the number of parts, lowers production costs and the weight of the subframe assembly, and improves installation efficiency. Furthermore, sharing the subframe bushings 4 avoids the need for large bushing pressing equipment in production assembly lines and after-sales maintenance, thus reducing after-sales maintenance costs for the subframe assembly.

[0069] Example 2

[0070] This embodiment relates to a subframe assembly, which has a roughly the same structure as the subframe assembly in Embodiment 1, the only difference being the structure of the support unit 2.

[0071] In a preferred embodiment, each support unit 2 includes an intermediate frame 203 located between the first frame 201 and the second frame 202. The intermediate frame 203 and the first frame 201 are connected to the first beam 101 via the same connector, and the intermediate frame 203 and the second frame 202 are connected to the first beam 101 via the same connector.

[0072] Here, by setting an intermediate frame 203 to connect the first frame 201 and the second frame 202 together, it is beneficial to strengthen the structural strength and force transmission continuity of the support unit 2. The intermediate frame 203 and the first frame 201 are connected to the first beam 101 through the same connector, and the intermediate frame 203 and the second beam 102 are connected to the first beam 101 through the same connector. This reduces the number of connectors, lowers costs, and improves installation efficiency.

[0073] In terms of specific structure, the structure of support unit 2 is as follows: Figure 8 As shown, the first frame 201 and the second frame 202 are connected at their ends away from the second sleeve 206. The intermediate frame 203 extends along the length of the first beam 101 and is located at the bottom of the connection between the first frame 201 and the second frame 202. To achieve shared connecting parts, the intermediate frame 203 is provided with third connecting holes 2031 corresponding to each of the first connecting holes 200. One first connecting part passes through one of the third connecting holes 2031 and the first connecting hole 200 on the first frame 201 and then connects to the second connecting hole 100. Another connecting part passes through another third connecting hole 2031 and the first connecting hole 200 on the second frame 202 and then connects to the second connecting hole 100, thereby realizing the arrangement and installation of the intermediate frame 203.

[0074] To improve the installation efficiency of the intermediate frame 203, positioning structures are provided between the intermediate frame 203 and the first frame 201 and the second frame 202, respectively. As an example of a positioning structure, such as... Figure 9 and Figure 10 As shown, the positioning structure includes positioning posts 2032 located at both ends of the intermediate frame 203 and protruding towards the first frame 201 and the second frame 202 respectively, and positioning holes 208 provided on the first frame 201 and the second frame 202 corresponding to each positioning post 2032. The intermediate frame 203 is first positioned by inserting the positioning posts 2032 into the corresponding positioning holes 208, and then connected to the first frame 201, the second frame 202, and the first beam 101 by connecting members.

[0075] Furthermore, in this embodiment, a limiting part is provided between the first frame 201 and the second frame 202 to limit their relative positions in the first direction. Limiting the relative positions of the first frame 201 and the second frame 202 in the first direction by the limiting part helps to improve the reliability of the support unit 2. As an exemplary structure of the limiting part, such as... Figure 9As shown, the limiting part includes a limiting protrusion 210 provided at one end of the first frame 201 facing the second frame 202, and a limiting groove provided at the end of the second frame 202 corresponding to the limiting protrusion 210. By inserting the limiting protrusion 210 into the limiting groove, the movement of the first frame 201 and the second frame 202 in the first direction can be restricted.

[0076] It is understood that in this embodiment, the limiting protrusion 210 can also be disposed at the end of the second frame 202, in which case the limiting groove is disposed at the end of the first frame 201. In addition, the limiting protrusion 210 and the limiting groove, besides being... Figure 9 Besides the arc shape shown, other geometric shapes are also possible, as long as they meet the requirements for limiting the position.

[0077] The subframe assembly described in this embodiment, by setting an intermediate frame 203 between the first frame 201 and the second frame 202, improves the structural strength and stability of the powertrain bracket, thereby enhancing its load-bearing capacity for the powertrain. Furthermore, by sharing connectors with the intermediate frame 203, the first frame 201, and the second frame 202, the number of components is further reduced, thus improving installation efficiency while lowering production costs. In addition, the way the first frame 201, the second frame 202, and the intermediate frame 203 cooperate effectively increases the rigidity and strength of the first beam 101.

[0078] Example 3

[0079] This embodiment relates to a subframe assembly, which has a roughly the same structure as the subframe assembly in Embodiment 1, the only difference being the structural form of the support unit 2.

[0080] like Figure 11 As shown, each support unit 2 in this embodiment includes an integrally formed support 204, which is equivalent to the first frame 201 and the second frame 202 in the embodiment being integrally formed. The subframe assembly of this embodiment, by setting the integrally formed support 204, not only has high structural strength and force transmission effect, but also helps to improve installation efficiency.

[0081] Example 4

[0082] This embodiment relates to a vehicle that has a subframe assembly as shown in the above embodiment.

[0083] The vehicle described in this embodiment, by setting up the subframe assembly as described above, helps to reduce the number of parts, thereby reducing production costs and improving installation efficiency.

[0084] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A subframe assembly, characterized in that: a subframe (1) and a power assembly support provided on the subframe (1) are included; the subframe (1) includes first beams (101) oppositely arranged in a first direction, second beams (102) oppositely arranged in a second direction, and a plurality of mounting portions for mounting the subframe (1) on a vehicle body; the power assembly support is provided with first sleeves (205) arranged along the first direction and used for mounting suspension bushings (3), and second sleeves (206) arranged along a third direction and used for mounting subframe bushings (4) corresponding to at least part of the mounting portions. 2.The subframe assembly according to claim 1, characterized in that: the power assembly support includes two support units (2) provided one-to-one on the two first beams (101); each of the support units (2) is provided with two first sleeves (205) arranged at intervals; and / or, each of the support units (2) is provided with the second sleeves (206) at two ends thereof. 3.The subframe assembly according to claim 2, characterized in that: each of the support units (2) includes a support (204) formed integrally, or each of the support units (2) includes first and second supports (201, 202) oppositely arranged, the first and second supports (201, 202) are connected to the first beams (101), and the first and second supports (201, 202) are respectively provided with the first sleeves (205) and the second sleeves (206). 4.The subframe assembly according to claim 3, characterized in that: each of the support units (2) includes an intermediate support (203) between the first and second supports (201, 202); the intermediate support (203) and the first support (201) are connected to the first beams (101) by the same connecting member, the intermediate support (203) and the second support (202) are connected to the first beams (101) by the same connecting member; and / or, a limiting portion is arranged between the first and second supports (201, 202) to limit the relative position of the first and second supports (201, 202) in the first direction. 5.The subframe assembly according to claim 2, characterized in that: a positioning portion is arranged between the subframe (1) and each of the support units (2), and the positioning portion is used for positioning the support unit (2) on the subframe (1). 6.The subframe assembly according to claim 5, characterized in that: the positioning portion includes an arc-shaped positioning groove (1032) provided on the second beams (102), and an arc-shaped protrusion (209) provided on the support unit (2). The arc-shaped protrusion (209) is inserted into the arc-shaped positioning groove (1032) and positions the support unit (2) in the first direction and the second direction.

7. The subframe assembly of claim 6, wherein: The second sleeve (206) protrudes towards the side of the support unit (2) close to the first beam body (101); and / or, Each support unit (2) is attached to the subframe (1) and has an avoiding groove (104) on the subframe (1) for avoiding the first sleeve (205).

8. The subframe assembly of claim 1, wherein: The subframe (1) is integrally casted from aluminum alloy; and / or, The power assembly support is detachably connected to the first beam body (101).

9. The subframe assembly of any one of claims 1 to 8, wherein: Each second beam body (102) has the mounting portion at both ends, which includes a mounting cylinder (103) provided on the second beam body (102), one end of the mounting cylinder (103) is open, and the other end is provided with a mounting hole (1031); The second sleeve (206) is inserted into the corresponding mounting cylinder (103), and the subframe (1) is mounted on the vehicle body by a fastener passing through the mounting hole (1031) and the subframe bushing (4).

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

Images