Auxiliary frame assembly and vehicle

Abstract

The utility model discloses an auxiliary frame assembly and a vehicle. The auxiliary frame assembly comprises a first cross beam, a second cross beam, a longitudinal beam, a swing arm and a reinforcing support, the two ends of the longitudinal beam are connected with the first cross beam and the second cross beam respectively, and the longitudinal beam is provided with at least one swing arm installation support. The swing arm is connected with the swing arm mounting bracket in a swinging manner; the reinforcing support connects at least one swing arm mounting support in the first cross beam and / or the second cross beam, and the reinforcing support is suitable for transmitting force transmitted by the swing arms to the first cross beam and / or the second cross beam. According to the auxiliary frame assembly, the reinforcing support is arranged between the first cross beam and the swing arm installation support and between the second cross beam and the swing arm installation support, the reinforcing support can directly transmit pressure borne by the swing arm installation support to the first cross beam and the second cross beam, a new force transmission path is added for the auxiliary frame assembly, the two paths transmit the pressure, and the force transmission efficiency is improved. The stress deformation of the auxiliary frame is reduced, the shaking of the vehicle can be reduced, and the safety and comfort of the vehicle are improved.

Description

Technical Field

[0001] The utility model relates to the field of vehicles, in particular to a subframe assembly and a vehicle. Background Art

[0002] When a vehicle is running at high speed and a single wheel passes over a pothole or a speed bump, the sudden change of the lateral force on the single wheel will cause the lateral force of the vehicle to be unbalanced, resulting in the lateral shaking of the vehicle and affecting the riding experience. Content of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, an object of the utility model is to provide a subframe assembly. According to the subframe assembly of the utility model, a reinforcing bracket is arranged between the first cross beam, the second cross beam and the swing arm mounting bracket. The reinforcing bracket can directly transfer the pressure received by the swing arm mounting bracket to the first cross beam and the second cross beam, adding a new force transmission path for the subframe assembly. The two paths transfer the pressure, reducing the force deformation of the subframe, which can reduce the shaking of the vehicle and improve the safety and comfort of the vehicle.

[0004] The utility model also provides a vehicle including the above subframe assembly.

[0005] The subframe assembly according to the utility model includes a first cross beam, a second cross beam, a longitudinal beam, a swing arm and a reinforcing bracket. Two ends of the longitudinal beam are respectively connected to the first cross beam and the second cross beam. At least one swing arm mounting bracket is arranged on the longitudinal beam. The swing arm is swingably connected to the swing arm mounting bracket. The reinforcing bracket connects the first cross beam and / or the second cross beam to at least one swing arm mounting bracket, and the reinforcing bracket is adapted to transfer the force transmitted by the swing arm to the first cross beam and / or the second cross beam.

[0006] Specifically, the rocker arm mounting bracket includes a first bracket and a second bracket. The first bracket and the second bracket are respectively connected to a rocker arm. It can be understood that one wheel corresponds to two rocker arms, and the two rocker arms are connected to the subframe through their respective corresponding rocker arm mounting brackets. The two rocker arms cooperate with each other to control the wheel. Among them, the distance between the connection point of the second mounting bracket and the corresponding rocker arm and the vehicle body is greater than the distance between the connection point of the first mounting bracket and the corresponding rocker arm and the vehicle body. It can also be simply understood that the rocker arm corresponding to the second mounting bracket is farther from the vehicle body at the connection point with the subframe. Therefore, when the force on a single wheel of the vehicle suddenly changes, the influence of the pressure on the position of the second mounting bracket is greater than that on the position of the first mounting bracket. Compared with the connection position of the first mounting bracket and the subframe, the connection position of the second mounting bracket and the subframe is more likely to deform. Therefore, a strengthening bracket can be provided at the connection position of the second mounting bracket and the subframe to improve the structural strength and compressive resistance of this position. At the same time, the force transmitted from the swing arm to the second mounting bracket can be split into two paths and transmitted to the vehicle body, reducing the deformation of the subframe, thereby reducing the internal force generated when the subframe deforms. After the wheel returns to normal, the internal force during the deformation recovery of the subframe causes less shaking of the vehicle body, improving the comfort and safety of the vehicle.

[0007] According to an embodiment of the present invention, the swing arm mounting bracket includes: a first mounting bracket and a second mounting bracket, and the first mounting bracket and the second mounting bracket are respectively connected to the corresponding swing arm; wherein, the distance between the connection point of the second mounting bracket and the corresponding swing arm and the vehicle body is greater than the distance between the connection point of the first mounting bracket and the corresponding swing arm and the vehicle body, and the strengthening bracket connects the second mounting bracket to the first cross beam and the second cross beam.

[0008] According to an embodiment of the present invention, the strengthening bracket includes a bracket body and a first bracket. The two ends of the bracket body are respectively connected to the first cross beam and the second cross beam; the first bracket is arranged on the bracket body, and the first bracket is adapted to connect the bracket body to the second mounting bracket.

[0009] According to an embodiment of the present invention, the first cross beam and / or the second cross beam are formed with a first mounting surface, and at least one end of the bracket body is formed with a second mounting surface that is surface-to-surface fitted with the first mounting surface.

[0010] According to an embodiment of the present invention, flat-shaped mounting parts are respectively arranged at the two ends of the bracket body, and the second mounting surface is formed on the mounting part.

[0011] According to an embodiment of the present utility model, the bracket body includes a first section, a second section, and a third section. The first section extends along the extension direction of the longitudinal beam, and the first bracket is provided on the first section. One end of the second section is connected to one end of the first section, and the other end of the second section is connected to the first cross beam. One end of the third section is connected to the other end of the first section, and the other end of the third section is connected to the second cross beam. Wherein, the second section and the third section extend obliquely away from each other and towards the first cross beam and the second cross beam respectively.

[0012] According to an embodiment of the present utility model, third brackets and fourth brackets are respectively formed in the middle parts of the first cross beam and the second cross beam. The other end of the second section is connected to the third bracket, and the other end of the third section is connected to the fourth bracket.

[0013] According to an embodiment of the present utility model, the reinforcing bracket further includes a second bracket, and the second bracket is arranged on the second section and connected to the first mounting bracket.

[0014] According to an embodiment of the present utility model, the longitudinal beams are configured as two spaced apart from each other in the vehicle body width direction, and the reinforcing brackets are configured as two corresponding to the longitudinal beams one by one and symmetrically arranged with each other.

[0015] The vehicle according to the present utility model will be briefly described below.

[0016] The vehicle according to the present utility model includes the subframe assembly in the above embodiment. Since the vehicle according to the present utility model is provided with the subframe assembly in the above embodiment, during the driving process of the vehicle, when the vehicle encounters situations such as a single wheel passing over a pothole or a speed bump, the lateral force on the single wheel changes suddenly. At this time, the subframe assembly can increase a force transmission path through the reinforcing bracket, disperse the pressure received by the subframe, reduce the deformation of the subframe under force, reduce the shaking of the vehicle, and improve the safety and ride experience of the vehicle.

[0017] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0019] Figure 1 is a bottom view of the subframe assembly according to an embodiment of the present utility model;

[0020] Figure 2It is a structural diagram of a subframe assembly according to an embodiment of the present utility model;

[0021] Figure 3 It is a structural diagram of a reinforcing bracket according to an embodiment of the present utility model;

[0022] Figure 4 It is a schematic diagram when a single wheel of a vehicle equipped with a reinforcing bracket undergoes sudden deformation;

[0023] Figure 5 It is a schematic diagram when a single wheel of a vehicle in the prior art without a reinforcing bracket undergoes sudden deformation.

[0024] Reference numerals:

[0025] Subframe assembly 1;

[0026] First crossbeam 111, second crossbeam 112;

[0027] Longitudinal beam 12;

[0028] Swing arm 13;

[0029] First mounting bracket 141, second mounting bracket 142;

[0030] Reinforcing bracket 15, bracket body 151, first section 1511, second section 1512, third section 1513, first bracket 152, second bracket 153, mounting portion 154;

[0031] Third bracket 161, fourth bracket 162;

[0032] Subframe 101, vehicle body 102. Detailed implementation manners

[0033] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0034] During the high-speed driving of an automobile, when a single wheel passes over a pothole or a speed bump, the sudden change in the lateral force on the single wheel will cause an imbalance in the lateral force of the vehicle, resulting in lateral shaking of the vehicle and affecting the driving and riding experience.

[0035] The following refers to Figures 1-5 Describe the subframe assembly according to the embodiment of the present utility model.

[0036] The subframe assembly 1 according to the present utility model includes a first cross beam 111, a second cross beam 112, longitudinal beams 12, swing arms 13 and reinforcing brackets 15. Both ends of the longitudinal beam 12 are respectively connected to the first cross beam 111 and the second cross beam 112, and at least one swing arm mounting bracket is arranged on the longitudinal beam 12; the swing arm 13 is swingably connected to the swing arm mounting bracket; the reinforcing bracket 15 connects the first cross beam 111 and / or the second cross beam 112 to at least one of the swing arm mounting brackets, and the reinforcing bracket 15 is adapted to transfer the force transmitted by the swing arm 13 to the first cross beam 111 and / or the second cross beam 112.

[0037] The subframe assembly 1 according to the present utility model is provided with a first cross beam 111 and a second cross beam 112. The first cross beam 111 and the second cross beam 112 are respectively connected to the vehicle body 102, and a damping structure can be arranged at the connection positions to reduce the shaking of the vehicle. A longitudinal beam 12 respectively connected to the first cross beam 111 and the second cross beam 112 is arranged between the first cross beam 111 and the second cross beam 112. A swing arm mounting bracket is arranged on the longitudinal beam 12, and the swing arm mounting bracket can swingably connect the swing arm 13 to the longitudinal beam 12 so that the swing arm 13 can control the movement of structures such as wheels by swinging. In addition, the subframe assembly 1 is further provided with a reinforcing bracket 15. The reinforcing bracket 15 connects the swing arm mounting bracket to the first cross beam 111 and the second cross beam 112. The reinforcing bracket 15 can improve the structural strength at the swing arm mounting bracket, the first cross beam 111 and the second cross beam 112, and improve the compressive performance of the subframe assembly 1.

[0038] The first cross beam 111, the second cross beam 112 and the longitudinal beam 12 cooperate with each other to form a subframe 101, and the subframe 101 can be understood as a basic structure in the subframe assembly 1.

[0039] During the operation of the vehicle, when a single wheel passes over a pothole or a speed bump, the lateral force on the unilateral wheel changes suddenly. The external force is transmitted from the wheel position through the swing arm 13 to the swing arm mounting bracket and the longitudinal beam 12, and the longitudinal beam 12 transmits the force to the first cross beam 111 and the second cross beam 112 and then to the vehicle body 102. The arrangement of the reinforcing bracket 15 provides an additional path for the transmission of the external pressure. It can be simply understood that: after the external force is transmitted to the swing arm mounting bracket through the wheel, a part of the force will directly act on the first cross beam 111 and the second cross beam 112 respectively through the reinforcing bracket 15 and finally be transmitted to the vehicle body 102. The arrangement of the reinforcing bracket 15 enables the vehicle to have two paths to transmit the pressure when the lateral force on the wheel changes suddenly, reduces the compressive deformation of the subframe 101 connected to the swing arm 13, and further reduces the shaking of the vehicle body 102, improving the riding experience and safety of the vehicle.

[0040] According to an embodiment of the present utility model, the swing arm mounting bracket includes a first mounting bracket 141 and a second mounting bracket 142. The first mounting bracket 141 and the second mounting bracket 142 are respectively connected to the corresponding swing arm 13. Among them, the distance between the connection point of the second mounting bracket 142 and the corresponding swing arm 13 and the vehicle body 102 is greater than the distance between the connection point of the first mounting bracket 141 and the corresponding swing arm 13 and the vehicle body 102, and the reinforcing bracket 15 connects the second mounting bracket 142 to the first cross beam 111 and the second cross beam 112.

[0041] Specifically, the rocker arm mounting bracket includes a first bracket 152 and a second bracket 153. The first bracket 152 and the second bracket 153 are respectively connected to a rocker arm. It can be understood that one wheel corresponds to two rocker arms, and the two rocker arms are connected to the subframe 101 through their respective corresponding rocker arm mounting brackets, and the two rocker arms cooperate with each other to control the wheel. Among them, the distance between the connection point of the second mounting bracket 142 and the corresponding rocker arm and the vehicle body 102 is greater than the distance between the connection point of the first mounting bracket 141 and the corresponding rocker arm and the vehicle body 102. It can also be simply understood that the rocker arm corresponding to the second mounting bracket 142 is farther from the vehicle body 102 at the connection point with the subframe 101. Therefore, when the force on a single wheel of the vehicle changes suddenly, the influence of the pressure on the position of the second mounting bracket 142 is greater than that on the position of the first mounting bracket 141. Compared with the connection position of the first mounting bracket 141 and the subframe 101, the connection position of the second mounting bracket 142 and the subframe 101 is more likely to deform. Therefore, the reinforcing bracket 15 can be arranged at the connection position of the second mounting bracket 142 and the subframe 101 to improve the structural strength and compressive resistance of this position, and at the same time, the force transmitted from the swing arm 13 to the second mounting bracket 142 can be split into two paths and transmitted to the vehicle body 102, reducing the deformation of the subframe 101, thereby reducing the internal force generated when the subframe 101 deforms. After the wheel returns to normal, the shaking of the vehicle body 102 caused by the internal force during the deformation recovery of the subframe 101 is small, improving the comfort and safety of the vehicle.

[0042] Compared with other assembly positions, assembling the reinforcing bracket 15 at the connection position of the second mounting bracket 142 and the subframe 101 can improve the strengthening effect of the reinforcing bracket 15.

[0043] According to an embodiment of the present utility model, the reinforcing bracket 15 includes a bracket body 151 and a first bracket 152. The two ends of the bracket body 151 are respectively connected to the first cross beam 111 and the second cross beam 112. The first bracket 152 is arranged on the bracket body 151, and the first bracket 152 is adapted to connect the bracket body 151 to the second mounting bracket 142.

[0044] The reinforcing bracket 15 is provided with a bracket body 151 and a first bracket 152. Among them, both ends of the bracket body 151 are respectively connected to the first cross beam 111 and the second cross beam 112, so that the pressure received by the reinforcing bracket 15 can be dispersed and transmitted to the first cross beam 111 and the second cross beam 112 through the bracket body 151, avoiding stress concentration and reducing the force deformation of the subframe 101. The first bracket 152 is arranged on the bracket body 151. When the reinforcing bracket 15 is assembled, the first bracket 152 can be connected to the second mounting bracket 142. Specifically, mounting holes for assembly fasteners can be respectively machined on the first bracket 152 and the second mounting bracket 142. When the reinforcing bracket 15 is assembled, the first bracket 152 and the second mounting bracket 142 can be connected by fasteners such as bolts to realize the assembly of the reinforcing bracket 15. The setting of the first bracket 152 can improve the structural strength of the assembly and fixing position of the reinforcing bracket 15.

[0045] According to an embodiment of the present invention, the first cross beam 111 and / or the second cross beam 112 are formed with a first mounting surface, and at least one end of the bracket body 151 is formed with a second mounting surface that fits flush with the first mounting surface. Specifically, the first cross beam 111 and the second cross beam 112 are respectively formed with a first mounting surface, and both ends of the bracket body 151 can be respectively machined with a second mounting surface. When the reinforcing bracket 15 is assembled, the second mounting surface can fit flush with the first mounting surface to improve the connection stability between the bracket body 151 and the first cross beam 111 or the second cross beam 112.

[0046] According to an embodiment of the present invention, both ends of the bracket body 151 are respectively provided with flat-shaped mounting portions 154, and the second mounting surface is formed on the mounting portions 154. Specifically, the bracket body 151 can construct flat-shaped mounting portions 154 at both ends of the bracket body 151 by directly hammering and flattening. The second mounting surface can be machined on the mounting portions 154. The flat-shaped mounting portions 154 can ensure the flatness of the second mounting surface, facilitating the fitting of the second mounting surface with the first mounting surface. Processing the mounting portions 154 by directly hammering and flattening can improve the processing efficiency of the second mounting surface, and there is no need to additionally set other structures, with low cost.

[0047] According to an embodiment of the present utility model, the bracket body 151 includes a first section 1511, a second section 1512, and a third section 1513. The first section 1511 extends along the extension direction of the longitudinal beam 12, and a first bracket 152 is provided on the first section 1511. One end of the second section 1512 is connected to one end of the first section 1511, and the other end of the second section 1512 is connected to the first cross beam 111. One end of the third section 1513 is connected to the other end of the first section 1511, and the other end of the third section 1513 is connected to the second cross beam 112. Wherein, the second section 1512 and the third section 1513 extend away from each other and are respectively inclined towards the first cross beam 111 and the second cross beam 112.

[0048] Since the bracket body 151 is respectively connected to the first cross beam 111 and the second cross beam 112, and the pressure received by the second mounting bracket 142 can be directly dispersed and transmitted to the first cross beam 111 and the second cross beam 112 through the bracket body 151, therefore, the structure of the bracket body 151 will affect the pressure dispersion effect of the reinforcing bracket 15.

[0049] Specifically, the first section 1511, the second section 1512, and the third section 1513 are provided on the bracket body 151. Among them, the first section 1511 has the same extension direction as the longitudinal beam 12. The two ends of the first section 1511 are respectively connected to the second section 1512 and the third section 1513. The ends of the second section 1512 and the third section 1513 away from the first section 1511 respectively form corresponding second mounting surfaces and are respectively connected to the first cross beam 111 and the second cross beam 112. It can be understood that the first section 1511 is the middle part of the bracket body 151, and the first bracket 152 is provided on the first section 1511. During assembly, the first bracket 152 is connected and fixed in cooperation with the second mounting bracket 142, that is, the middle part of the bracket body 151 is connected to the second mounting bracket 142, which can improve the stability of the reinforcing bracket 15. At the same time, the bracket body 151 disperses the pressure from the middle towards both ends, enabling the pressure transmitted to the first cross beam 111 and the second cross beam 112 to be approximately the same, avoiding excessive force on one end of the bracket body 151 and causing damage. The second section 1512 and the third section 1513 extend in directions away from each other, and the second section 1512 and the third section 1513 are respectively inclined towards the first cross beam 111 and the second cross beam 112. It can be understood that the second section 1512 and the third section 1513 are respectively bent relative to the first section 1511, and the direction of force transmission can be changed multiple times when the bracket body 151 transmits pressure, reducing the impact of the pressure on the subframe 101.

[0050] According to an embodiment of the present utility model, third brackets 161 and fourth brackets 162 are respectively formed in the middle parts of the first cross beam 111 and the second cross beam 112. The other end of the second section 1512 is connected to the third bracket 161, and the other end of the third section 1513 is connected to the fourth bracket 162. Specifically, a third bracket 161 is provided in the middle of the first cross beam 111, and a first mounting surface is formed on the third bracket 161. A fourth bracket 162 is provided in the middle of the second cross beam 112, and a first mounting surface is also formed on the fourth bracket 162. Mounting holes for assembling fasteners can be machined on the mounting parts 154 at both ends of the bracket body 151. Similarly, mounting holes for assembling fasteners can also be machined on the third bracket 161 and the fourth bracket 162. When the bracket body 151 is assembled, the second section 1512 and the third section 1513 can be respectively connected and fixed to the third bracket 161 and the fourth bracket 162 through fasteners. The settings of the third bracket 161 and the fourth bracket 162 can further improve the connection stability of the bracket body 151. At the same time, the structural strength of the connection positions between the bracket body 151 and the first cross beam 111 and the second cross beam 112 can also be improved. In addition, the third bracket 161 and the fourth bracket 162 are respectively provided in the middle of the first cross beam 111 and the second cross beam 112. Thus, a triangular area can be defined between the second section 1512, the first cross beam 111, and the longitudinal beam 12. Similarly, a triangular area can also be defined between the third section 1513, the second cross beam 112, and the longitudinal beam 12, which can improve the overall structural strength of the subframe assembly 1.

[0051] According to an embodiment of the present utility model, the reinforcing bracket 15 further includes a second bracket 153, and the second bracket 153 is provided on the second section 1512 and is connected to the first mounting bracket 141. Specifically, the reinforcing bracket 15 further provides a second bracket 153 on the second section 1512, and the second bracket 153 can be connected to the first mounting bracket 141 to further improve the assembly stability of the reinforcing bracket 15.

[0052] According to an embodiment of the present utility model, the longitudinal beams 12 are configured to be two spaced apart from each other in the width direction of the vehicle body 102, and the reinforcing brackets 15 are configured to be two corresponding to the longitudinal beams 12 and symmetrically arranged with each other. Specifically, two longitudinal beams 12 are spaced apart in the width direction of the vehicle body 102 for the subframe assembly 1, and both ends of each longitudinal beam 12 are respectively connected to the first cross beam 111 and the second cross beam 112. The reinforcing brackets 15 correspond to the longitudinal beams 12 one by one. Thus, the reinforcing brackets 15 are configured to be two symmetrically arranged with each other in the width direction of the vehicle body 102. The two reinforcing brackets 15 can respectively provide two force transmission paths when the single wheels on both sides in the width direction of the vehicle body 102 are subjected to sudden force changes, reduce the deformation of the subframe 101, and reduce the lateral sway of the vehicle.

[0053] The vehicle according to the present utility model will be briefly described below.

[0054] The vehicle according to the present utility model includes the subframe assembly 1 in the above embodiment. Since the vehicle according to the present utility model is provided with the subframe assembly 1 in the above embodiment, during the driving process of the vehicle, when the vehicle encounters a situation such as a single wheel passing over a pothole or a speed bump, the lateral force on the single wheel changes suddenly. At this time, the subframe assembly 1 can increase a force transmission path through the strengthening bracket 15, dispersing the pressure received by the subframe 101, reducing the deformation of the subframe 101 under force, and can reduce the shaking of the vehicle, improving the safety and driving experience of the vehicle.

[0055] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0056] In the description of the present utility model, the "first feature" and "second feature" may include one or more of such features.

[0057] In the description of the present utility model, the meaning of "a plurality" is two or more.

[0058] In the description of the present utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween.

[0059] In the description of the present utility model, the first feature being "above", "above" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature.

[0060] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0061] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A subframe assembly, characterized in that: include: a first cross beam and a second cross beam; A longitudinal beam, two ends of which are respectively connected to the first cross beam and the second cross beam, and at least one swing arm mounting bracket is provided on the longitudinal beam; A swing arm, the swing arm being swingably connected to the swing arm mounting bracket; A reinforcing bracket, wherein the reinforcing bracket connects the first crossbeam and / or the second crossbeam to at least one of the swing arm mounting brackets, and the reinforcing bracket is suitable for transmitting the force transmitted by the swing arm to the first crossbeam and / or the second crossbeam.

2. The subframe assembly according to claim 1, characterized in that: The swing arm mounting bracket includes: a first mounting bracket and a second mounting bracket, wherein the first mounting bracket and the second mounting bracket are respectively connected to the corresponding swing arm; The distance between the connection point between the second mounting bracket and the corresponding swing arm and the vehicle body is greater than the distance between the connection point between the first mounting bracket and the corresponding swing arm and the vehicle body, and the reinforcing bracket connects the second mounting bracket to the first crossbeam and the second crossbeam.

3. The subframe assembly according to claim 2, characterized in that: The reinforcing bracket comprises: A bracket body, two ends of which are respectively connected to the first crossbeam and the second crossbeam; A first bracket is arranged on the bracket body, and the first bracket is suitable for connecting the bracket body with the second mounting bracket.

4. The subframe assembly according to claim 3, characterized in that: The first cross beam and / or the second cross beam is formed with a first mounting surface, and at least one end of the bracket body is formed with a second mounting surface that is in surface contact with the first mounting surface.

5. The subframe assembly according to claim 4, characterized in that: Two ends of the bracket body are respectively provided with flat mounting parts, and the second mounting surface is formed on the mounting parts.

6. The subframe assembly according to claim 3, characterized in that: The support body comprises: a first section, the first section extending along an extension direction of the longitudinal beam, the first section being provided with the first bracket; a second section, one end of the second section being connected to one end of the first section, and the other end of the second section being connected to the first crossbeam; A third section, one end of the third section is connected to the other end of the first section, and the other end of the third section is connected to the second crossbeam; The second section and the third section are away from each other and extend obliquely toward the first beam and the second beam respectively.

7. The subframe assembly according to claim 6, characterized in that: A third bracket and a fourth bracket are respectively formed in the middle of the first cross beam and the second cross beam, the other end of the second section is connected to the third bracket, and the other end of the third section is connected to the fourth bracket.

8. The subframe assembly according to claim 6, characterized in that: The reinforcing bracket further includes: a second bracket, which is disposed in the second section and connected to the first mounting bracket.

9. The subframe assembly according to claim 1, characterized in that: The longitudinal beam is configured to be two and spaced apart from each other in the width direction of the vehicle body, and the reinforcing bracket is configured to be two and corresponding to the longitudinal beam one by one and symmetrically arranged to each other.

10. A vehicle, characterized in that: The vehicle comprises a subframe assembly as claimed in any one of claims 1 to 9.

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