Rear suspension system and vehicle with same
By designing the subframe of the rear suspension system as a beam body structure extending left and right, the problem of excessive space occupancy of the rear suspension system is solved, the layout space of the battery pack is increased, and the vehicle's endurance and stability are improved.
Patent Information
- Application Number
- CN202422038648.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-21
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-08-21
AI Technical Summary
On models that provide power sources for the battery pack, the rear suspension system occupies a large space, resulting in less space in the battery pack layout and affecting the vehicle's battery life.
A rear suspension system is designed in which the subframe is formed as a beam body structure extending left and right, and body connections are provided at both ends. Through this structure, the space occupied by the suspension in the front and rear directions can be reduced, thereby increasing the layout space of the battery pack.
By reducing the space occupied by the subframe, the layout space of the battery pack is increased, so that the vehicle can install a larger capacity battery pack, thereby improving the vehicle's endurance, while improving the vehicle's stability and reducing noise.
Smart Images
Figure CN223001583U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vehicles, and in particular to a rear suspension system and a vehicle having the same. Background Art
[0002] In vehicles powered by a battery pack, the battery pack is usually arranged under the vehicle body. At the same time, the vehicle's suspension is also arranged under the vehicle body. In the related art, the rear suspension of the vehicle occupies a large space, resulting in a small layout space for the battery pack. Summary of the Utility Model
[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides a rear suspension system, which can increase the layout space of the battery pack on the vehicle.
[0004] The utility model also provides a vehicle having the above rear suspension system.
[0005] The rear suspension system according to the first aspect of the utility model includes: a subframe, the subframe is formed as a beam structure extending left and right, and body connection parts are provided at both ends of the subframe.
[0006] By setting the subframe as a beam structure extending left and right, on the one hand, the volume of the subframe is small, which can increase the layout space of the battery pack on the vehicle. On the other hand, the rigidity of the subframe is greater, which can improve the stability of the vehicle and reduce the noise of the vehicle.
[0007] According to some embodiments of the utility model, the subframe includes a main body section and extension sections, the main body section extends left and right, the extension sections extend front and rear, there are two extension sections, and the two extension sections are respectively connected to the left and right ends of the main body section, and the body connection parts are provided on the extension sections.
[0008] According to some embodiments of the utility model, one end of the two extension sections is connected to the main body section, and the other ends of the two extension sections extend forward and away from each other in the left-right direction.
[0009] According to some embodiments of the utility model, the body connection part is formed as a connection hole, and the body connection part is adapted to be connected to the vehicle body by a fastener passing through the connection hole.
[0010] According to some embodiments of the utility model, a bushing is provided in the connection hole.
[0011] According to some embodiments of the present utility model, the rear suspension system further includes: a toe control arm and an upper control arm. The toe control arm is connected to the front side of the subframe, and the upper control arm is connected to the rear side of the subframe. In the front-rear direction of the vehicle, the body connection portion is located between the toe control arm and the upper control arm.
[0012] According to some embodiments of the present utility model, the rear suspension system further includes: a lower control arm. The lower control arm is connected to the subframe. In the front-rear direction of the vehicle, the lower control arm is located between the toe control arm and the upper control arm.
[0013] According to some embodiments of the present utility model, the rear suspension system further includes: a shock absorber. Both ends of the shock absorber are adapted to be connected between the lower control arm and the body.
[0014] According to some embodiments of the present utility model, the rear suspension system further includes: a rear trailing arm. The rear trailing arm extends along the front-rear direction of the vehicle, and both ends of the rear trailing arm are adapted to be connected between the wheel assembly and the body.
[0015] A vehicle according to the second aspect of the present utility model includes: a body; a battery pack provided on the lower side of the body; the rear suspension system according to the first aspect of the present utility model, the rear suspension system being connected to the body; a rear wheel assembly, the wheel assembly being connected to the rear suspension system.
[0016] For the vehicle according to the second aspect of the present utility model, by providing the rear suspension system according to the first aspect of the present utility model, the layout space of the battery pack can be increased, so that the vehicle can be provided with a battery pack of a larger capacity, thereby improving the endurance of the vehicle.
[0017] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a schematic diagram of a rear suspension system according to an embodiment of the present utility model;
[0019] Figure 2 is Figure 1 a schematic diagram of the subframe shown in
[0020] Reference numerals:
[0021] 100, rear suspension system;
[0022] 10, subframe; 11, body connection portion; 12, main body section; 13, extension section;
[0023] 20. Front toe control arm;
[0024] 30. Upper control arm;
[0025] 40. Lower control arm;
[0026] 50. Shock absorber;
[0027] 60. Rear trailing arm. Detailed implementation manners
[0028] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation to the present utility model.
[0029] Below, refer to Figure 1 and Figure 2 to describe the rear suspension system 100 according to the embodiment of the first aspect of the present utility model.
[0030] As Figure 1 and Figure 2 shown, the rear suspension system 100 according to the embodiment of the first aspect of the present utility model includes: a subframe 10, the subframe 10 is formed as a beam structure extending left and right, and both ends of the subframe 10 are provided with body connection portions 11.
[0031] Among them, the subframe 10 is connected to the lower side of the body through the body connection portion 11. After assembly, the battery pack is connected to the lower side of the body and is located in front of the subframe 10.
[0032] It can be understood that by setting the subframe 10 as a beam structure extending left and right, in the front-rear direction, the space occupied by the subframe 10 is smaller. In this way, in front of the subframe 10, there can be more space to arrange the battery pack, so that the vehicle can be equipped with a larger-capacity battery pack, improving the vehicle's endurance.
[0033] During the driving of the vehicle, the suspension transmits the acting force between the rear wheel assembly and the body through the subframe 10 to adjust the body posture. The subframe 10 with a beam structure has a relatively large stiffness. In this way, the turning and bending of the subframe 10 caused by the acting force at the body connection portion 11 are also smaller. Therefore, the stability of the vehicle can be improved, and the noise generated by the deformation of the subframe 10 can be reduced.
[0034] According to the rear suspension system 100 of the first aspect embodiment of the present utility model, by setting the subframe 10 as a beam structure extending left and right, on the one hand, the volume of the subframe 10 is relatively small, which can increase the layout space of the battery pack on the vehicle. On the other hand, the stiffness of the subframe 10 is greater, which can improve the stability of the vehicle and reduce the noise of the vehicle.
[0035] In some embodiments of the present utility model, as Figure 2 shown, the subframe 10 includes a main body section 12 and extension sections 13. The main body section 12 extends left and right, and the extension sections 13 extend front and rear. There are two extension sections 13, and the two extension sections 13 are respectively connected to the left and right ends of the main body section 12. The body connection part 11 is arranged on the extension section 13.
[0036] It can be understood that the stress at the body connection part 11 is relatively large. By arranging the body connection part 11 on the extension section 13, compared with arranging the body connection part 11 on the main body section 12, the edge distance between the body connection part 11 and the extension section 13 is larger, which can make the stress at the body connection part 11 more dispersed, thereby reducing the probability of damage at the body connection part 11 and improving the reliability of the connection between the subframe 10 and the body. At the same time, the extension section 13 extending front and rear occupies less space for the battery pack layout.
[0037] In some embodiments of the present utility model, as Figure 1 and Figure 2 shown, one end of the two extension sections 13 is connected to the main body section 12, and the other ends of the two extension sections 13 extend forward and are spaced apart from each other in the left - right direction. Thus, the occupation of the extension section 13 on the battery pack layout space can be further reduced, and the layout space of the battery pack under the body can be improved.
[0038] In some embodiments of the present utility model, as Figure 1 and Figure 2 shown, the body connection part 11 is formed as a connection hole, and the body connection part 11 is adapted to be connected to the body through a fastener passing through the connection hole. In this way, the process of connecting the body connection part 11 to the body is relatively simple, which can reduce the production difficulty, and the connection strength of the fastener is relatively high, and it is relatively easy to make the connection strength between the subframe 10 and the body meet the use requirements. Among them, preferably, two connection holes are respectively arranged on the two extension sections 13, and in the front - rear direction, the connection holes are arranged at intervals on the extension section 13.
[0039] In some embodiments of the present utility model, a bushing is arranged in the connection hole. By arranging the bushing, during the operation of the vehicle, the bushing can absorb a part of the vibration and reduce the rigid knocking on the vehicle. Thus, the stability of the vehicle can be further improved, and the noise of the vehicle can be reduced.
[0040] In some embodiments of the present utility model, as Figure 1As shown in the figure, the rear suspension system 100 further includes: a toe control arm 20 and an upper control arm 30. The toe control arm 20 is connected to the front side of the subframe 10, and the upper control arm 30 is connected to the rear side of the subframe 10. In the front-rear direction of the vehicle, the body connection portion 11 is located between the toe control arm 20 and the upper control arm 30. Thus, the structure of the end of the subframe 10 can be made more compact, and the layout space of the battery pack on the lower side of the body can be further increased. Among them, after assembly, both the toe control arm 20 and the upper control arm 30 are connected to the rear wheel assembly. The toe control arm 20 can adjust the toe value of the rear wheel, and the upper control arm 30 can control the up-and-down movement trajectory of the rear wheel.
[0041] In some embodiments of the present invention, as Figure 1 shown, the rear suspension system 100 further includes: a lower control arm 40. The lower control arm 40 is connected to the subframe 10. In the front-rear direction of the vehicle, the lower control arm 40 is located between the toe control arm 20 and the upper control arm 30. Thus, the space at the end of the subframe 10 can be reasonably utilized, and the layout space of the battery pack on the lower side of the body can be further increased. After assembly, the lower control arm 40 is connected to the rear wheel assembly. The lower control arm 40 can control the up-and-down movement trajectory of the rear wheel. Preferably, the lower control arm 40 is connected to the lower side of the subframe 10.
[0042] In some embodiments of the present invention, as Figure 1 shown, the rear suspension system 100 further includes: a shock absorber 50. Both ends of the shock absorber 50 are adapted to be connected between the lower control arm 40 and the body. During the movement of the vehicle, the shock absorber 50 can absorb a part of the impact force on the wheel, thereby further improving the stability of the vehicle.
[0043] In some embodiments of the present invention, as Figure 1 shown, the rear suspension system 100 further includes: a rear trailing arm 60. The rear trailing arm 60 extends along the front-rear direction of the vehicle. Both ends of the rear trailing arm 60 are adapted to be connected between the wheel assembly and the body. During the driving of the vehicle, the rear suspension system 100 can control the movement of the rear wheel assembly together through the upper control arm 30, the lower control arm 40, the toe control arm 20 and the rear trailing arm 60, thereby improving the stability during the driving of the vehicle.
[0044] A vehicle according to an embodiment of the second aspect of the present invention includes: a body, a battery pack, the rear suspension system 100 according to the embodiment of the first aspect of the present invention, and a rear wheel assembly.
[0045] Specifically, the battery pack is provided on the lower side of the body. The rear suspension system 100 is connected to the body, and the wheel assembly is connected to the rear suspension system 100.
[0046] After assembly, the battery pack is located in front of the subframe 10. The subframe 10 is a beam structure extending left and right. In the front-rear direction, the subframe 10 occupies less space. In this way, a larger layout space can be provided for the battery pack.
[0047] For a vehicle according to an embodiment of the second aspect of the present invention, by providing the rear suspension system 100 according to the first aspect of the present invention, the layout space of the battery pack can be increased, so that a larger-capacity battery pack can be arranged in the vehicle, improving the endurance of the vehicle.
[0048] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "lateral", "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. It is 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. Therefore, it should not be construed as a limitation to the present invention.
[0049] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.
[0050] In the present invention, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0051] In the description of this specification, the description referring to terms such as "one embodiment", "some 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. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.
[0052] 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, and the scope of the present utility model is defined by the claims and their equivalents.
Claims
1. A rear suspension system, characterized in that: include: A subframe, wherein the subframe is formed as a beam structure extending left and right, and a vehicle body connection portion is provided at both ends of the subframe; A toe control arm and an upper control arm, wherein the toe control arm is connected to the front side of the subframe, and the upper control arm is connected to the rear side of the subframe. In the front-rear direction of the vehicle, the body connection portion is located between the toe control arm and the upper control arm.
2. The rear suspension system according to claim 1, characterized in that: The subframe includes a main section and an extension section, the main section extends left and right, the extension section extends front and back, there are two extension sections, the two extension sections are respectively connected to the left and right ends of the main section, and the vehicle body connection part is arranged on the extension section.
3. The rear suspension system according to claim 2, characterized in that: One ends of the two extension sections are connected to the main body section, and the other ends of the two extension sections extend forward and opposite to each other in the left-right direction.
4. The rear suspension system according to claim 1, characterized in that: The vehicle body connecting portion is formed as a connecting hole, and the vehicle body connecting portion is suitable for being connected to the vehicle body by a fastener passing through the connecting hole.
5. The rear suspension system according to claim 4, characterized in that: A bushing is arranged in the connecting hole.
6. The rear suspension system according to claim 1, characterized in that: Also includes: A lower control arm is connected to the subframe, and in the front-rear direction of the vehicle, the lower control arm is located between the toe control arm and the upper control arm.
7. The rear suspension system according to claim 6, characterized in that: Also includes: A shock absorber, both ends of which are suitable for being connected between the lower control arm and the vehicle body.
8. The rear suspension system according to claim 1, characterized in that: Also includes: A rear longitudinal arm extends along the front-rear direction of the vehicle, and both ends of the rear longitudinal arm are suitable for connecting between the wheel assembly and the vehicle body.
9. A vehicle, characterized in that: include: Car body; A battery pack, the battery pack being arranged on the lower side of the vehicle body; The rear suspension system according to any one of claims 1 to 8, wherein the rear suspension system is connected to the vehicle body; A rear wheel assembly is connected to the rear suspension system.