Rear suspension structure and vehicle

Abstract

The utility model discloses a rear suspension structure and a vehicle, the rear suspension structure comprises a suspension support, a first side of the suspension support is provided with a plurality of first suspension assemblies, a second side of the suspension support opposite to the first side is provided with a plurality of second suspension assemblies, the first suspension assemblies extend along a first direction, and the second suspension assemblies extend along a second direction. The second suspension assembly extends in a second direction. The first suspension assemblies are installed on the first side of the suspension support, the second suspension assemblies are installed on the second side of the suspension support, the supporting performance of the suspension support on each first suspension assembly and each second suspension assembly is better, and the stability of the first suspension assemblies and the stability of the second suspension assemblies are higher. And the decoupling capability of the rear suspension structure is improved, so that the overall rigidity of the rear suspension structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a rear suspension structure and a vehicle. Background Art

[0002] As the torque and displacement of the vehicle's powertrain continue to increase, the weight, torque and all-directional stability requirements of the engine's transmission mount continue to increase. In addition, people's requirements for vehicle comfort are increasing, and the requirements for the vibration isolation performance of the rear suspension structure are also gradually increasing.

[0003] In the prior art, two separate tie rods are usually used to limit the suspension assembly, that is, a suspension assembly is installed at both ends of each tie rod. However, for models with large torque, this method will make the decoupling ability of the rear suspension structure poor and the overall stiffness of the rear suspension structure low. Utility Model Content

[0004] The utility model aims to at least solve the technical problem in the prior art that two separate rear suspension rods are used to limit the suspension assembly, and a suspension assembly is installed at both ends of each suspension rod. However, due to the large torque of hybrid power vehicles, the decoupling ability of the rear suspension structure is poor, resulting in low overall stiffness of the rear suspension structure.

[0005] To this end, one object of the utility model is to propose a rear suspension structure, which includes a suspension bracket, a plurality of first suspension components are arranged on a first side of the suspension bracket, a plurality of second suspension components are arranged on a second side of the suspension bracket opposite to the first side, the first suspension components extend along a first direction, and the second suspension components extend along a second direction.

[0006] In some embodiments, the first direction and the second direction are different.

[0007] In some embodiments, the first direction is along the width of the vehicle, and the second direction is along the height of the vehicle.

[0008] In some embodiments, a plurality of the first suspension components are arranged on the same straight line.

[0009] In some embodiments, a plurality of the second suspension components are arranged on the same straight line.

[0010] In some embodiments, the suspension bracket includes a first suspension rod and a second suspension rod arranged crosswise, the first suspension component is arranged at the first end of the first suspension rod and the first end of the second suspension rod located on the first side, and the second suspension component is arranged at the second end of the first suspension rod and the second end of the second suspension rod located on the second side.

[0011] In some embodiments, the first end of the first suspension rod and the first end of the second suspension rod are both provided with a first fixing portion, and the first fixing portion is used to connect the first suspension component. The second end of the first suspension rod and the second end of the second suspension rod are both provided with a second fixing portion, and the second fixing portion is used to connect the second suspension component.

[0012] In some embodiments, the first suspension component includes a first bushing and a first core, the first core is disposed in the first bushing, and a solid first main spring is disposed between the first bushing and the first core.

[0013] In some embodiments, the second suspension component includes a second bushing and a second core, the second core is arranged in the second bushing, a second main spring is arranged between the second bushing and the second core, a through hole is arranged in the second core, a groove is arranged in the second main spring, and a protrusion is extended from the wall away from the second core toward the direction of the second core.

[0014] In some embodiments, the first main spring and the second main spring have different stiffnesses.

[0015] In some embodiments, at least two of the plurality of first main springs have different stiffnesses.

[0016] In some embodiments, at least two of the plurality of second main springs have different stiffnesses.

[0017] Another object of the present invention is to provide a vehicle, comprising the above-mentioned rear suspension structure.

[0018] The rear suspension structure and vehicle provided by the embodiment of the utility model have the following beneficial effects:

[0019] The rear suspension structure is configured such that a plurality of first suspension components are installed on a first side of a suspension bracket, and a plurality of second suspension components are installed on a second side of the suspension bracket. The suspension bracket provides better support for each first suspension component and each second suspension component, and the first suspension component and the second suspension component are more stable. The decoupling capability of the rear suspension structure is improved, thereby improving the overall rigidity of the rear suspension structure. In addition, a plurality of first suspension components and a plurality of second suspension components are respectively arranged on both sides of the suspension bracket, so that the product consistency of the rear suspension structure is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 is a three-dimensional diagram of a rear suspension structure in an embodiment of the utility model;

[0022] Figure 2 It is a structural schematic diagram of a suspension bracket in an embodiment of the utility model;

[0023] Figure 3 is an exploded view of the first suspension assembly in an embodiment of the utility model;

[0024] Figure 4 is a partial enlarged view of the first suspension assembly in the embodiment of the utility model;

[0025] Figure 5 is an exploded view of the second suspension assembly in an embodiment of the utility model;

[0026] Figure 6 It is a partial enlarged view of the second suspension component in the embodiment of the utility model.

[0027] Reference numerals:

[0028] 1. First suspension component; 11. First bushing; 12. First main spring; 13. First core; 2. Second suspension component; 21. Second bushing; 22. Second main spring; 221. Groove; 222. Protrusion; 223. Support body; 23. Second core; 24. Through hole; 25. Lightening hole; 3. Suspension bracket; 31. First suspension rod; 32. Second suspension rod; 33. First fixing part; 34. Second fixing part. DETAILED DESCRIPTION

[0029] Various aspects and features of the present invention are described herein with reference to the accompanying drawings.

[0030] It should be understood that various modifications may be made to the embodiments of the present application. Therefore, the above description should not be considered as limiting, but only as an example of the embodiments. Other modifications within the scope and spirit of the present utility model will occur to those skilled in the art.

[0031] The accompanying drawings, which are included in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the general description of the present invention given above and the detailed description of the embodiments given below, are used to explain the principles of the present invention.

[0032] These and other characteristics of the invention will become apparent from the following description of a preferred form of embodiment given as a non-limiting example, with reference to the accompanying drawings.

[0033] It should also be understood that although the present invention has been described with reference to some specific examples, those skilled in the art will be able to realize many other equivalent forms of the present invention that have the features described in the claims and are therefore within the scope of protection defined thereby.

[0034] The above and other aspects, features and advantages of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

[0035] Specific embodiments of the present invention are described hereinafter with reference to the accompanying drawings; however, it should be understood that the embodiments applied for are merely examples of the present invention, which may be implemented in a variety of ways. Well-known and / or repeated functions and structures are not described in detail to avoid unnecessary or redundant details that obscure the present invention. Therefore, the specific structural and functional details applied for herein are not intended to be limiting, but merely serve as the basis and representative basis for the claims to teach those skilled in the art to use the present invention in a variety of ways with substantially any suitable detailed structure.

[0036] In the present invention, the vehicle length direction refers to the X direction of the vehicle, the vehicle width direction refers to the Y direction of the vehicle, and the vehicle height direction refers to the Z direction of the vehicle.

[0037] The first embodiment of the utility model provides a rear suspension structure, such as Figure 1-Figure 6 As shown, the rear suspension structure includes a suspension bracket 3, a plurality of first suspension components 1 are arranged on a first side of the suspension bracket 3, a plurality of second suspension components 2 are arranged on a second side of the suspension bracket 3 opposite to the first side, the first suspension components 1 extend along a first direction, and the second suspension components 2 extend along a second direction.

[0038] In the prior art, the rear suspension structure includes two independently arranged tie rods, each of which has a first suspension and a second suspension installed at both ends, and each tie rod has insufficient support performance for the first suspension and the second suspension. Figure 1 As shown, in the rear suspension structure, a suspension bracket 3 has multiple first suspension components 1 and multiple second suspension components 2 on both sides respectively, and the suspension bracket 3 supports each first suspension component 1 and each second suspension component 2 at the same time, thereby improving the supporting performance of the suspension bracket 3 for each first suspension component 1 and each second suspension component 2.

[0039] In addition, a plurality of first suspension components 1 are arranged on the first side of the suspension bracket 3, and a plurality of second suspension components 2 are arranged on the second side of the suspension bracket 3, so that the rear suspension structure is platformized for easy installation and disassembly.

[0040] Exemplarily, two first suspension components 1 are provided, and two second suspension components 2 are provided.

[0041] Further, if the first direction and the second direction are the same, that is, the first suspension component 1 and the second suspension component 2 extend in the same direction, the entire rear suspension structure provides stiffness in two directions (eg, X direction and Y direction).

[0042] If the first direction and the second direction are different, that is, the extension directions of the first suspension component 1 and the second suspension component 2 are set to be different, the stiffness of the rear suspension structure can be decoupled in different directions (for example, X direction, Y direction and Z direction) to adapt to the complex requirements of the transmission in multiple working conditions such as starting, shutting down, and accelerating.

[0043] Exemplarily, the first suspension component 1 is arranged on a side close to the head of the vehicle, and the second suspension component 2 is arranged on a side close to the rear of the vehicle. The first direction is along the width direction of the vehicle (i.e., the Y direction), and the second direction is along the height direction of the vehicle (i.e., the Z direction). The first suspension component 1 provides stiffness in the X and Z directions for the transmission, and the second suspension component 2 provides stiffness in the X and Y directions for the transmission. The first suspension component 1 and the second suspension component 2 adopt an out-of-direction design, so that the rear suspension structure can provide stiffness in different directions, providing more possibilities for decoupling of the rear suspension structure, thereby meeting complex vehicle working conditions.

[0044] In some embodiments, a plurality of first suspension components 1 are arranged on the same straight line, which is beneficial to ensure the vibration isolation performance of the first suspension components 1 .

[0045] In other embodiments, a plurality of second suspension components 2 are arranged on the same straight line, which is beneficial to ensure the vibration isolation performance of the second suspension components 2 .

[0046] In other embodiments, a plurality of first suspension components 1 are arranged on the same straight line, and a plurality of second suspension components 2 are arranged on the same straight line, which is beneficial to ensure the vibration isolation performance of the rear suspension structure.

[0047] In some embodiments, Figure 2As shown, the suspension bracket 3 includes a first suspension rod 31 and a second suspension rod 32 arranged crosswise, the first suspension component 1 is arranged at the first end of the first suspension rod 31 and the first end of the second suspension rod 32 located on the first side, and the second suspension component 2 is arranged at the second end of the first suspension rod 31 and the second end of the second suspension rod 32 located on the second side. The first end refers to an end close to the head of the vehicle, and the second end refers to an end close to the rear of the vehicle. Exemplarily, the first suspension rod 31 and the second suspension rod 32 are connected by welding. The first suspension rod 31 and the second suspension rod 32 are arranged crosswise and connected together. Compared with setting two separate rods, the rigidity of the suspension bracket 3 is greater, thereby improving the durability of the entire rear suspension structure.

[0048] Exemplarily, the suspension bracket 3 is arranged in an X shape.

[0049] In the prior art, the rear suspension structure includes two independently arranged tie rods, and a first suspension and a second suspension are respectively installed on both side ends of each tie rod. The stiffness of each individual tie rod is generally different, and the use of two individual rear suspension tie rods results in a large number of parts and poor product consistency. In some embodiments, the suspension bracket 3 of the rear suspension structure is integrally formed, which is conducive to ensuring the overall stiffness consistency of the suspension bracket 3, and reduces the number of parts, reduces mold development costs, and saves costs.

[0050] In some embodiments, the first end of the first suspension rod 31 and the first end of the second suspension rod 32 are both provided with a first fixing portion 33, and the first fixing portion 33 is used to connect the first suspension component 1. The second end of the first suspension rod 31 and the second end of the second suspension rod 32 are both provided with a second fixing portion 34, and the second fixing portion 34 is used to connect the second suspension component 2. The first fixing portion 33 provides an installation position for the first suspension component 1, and exemplarily, the first fixing portion 33 is a hollow cylindrical structure. The second fixing portion 34 provides an installation position for the second suspension component 2, and exemplarily, the second fixing portion 34 is a hollow cylindrical structure.

[0051] In some embodiments, the two ends of the first suspension rod 31 are respectively connected to the side of the first fixing portion 33, and the two ends of the second suspension rod 32 are respectively connected to the side of the second fixing portion 34, so as to increase the lateral support performance of the suspension bracket 3 to the first suspension component 1 and the second suspension component 2, and improve stability. At the same time, the first suspension rod 31 and the second suspension rod 32 are respectively connected to the side of the first fixing portion 33 and the second fixing portion 34, so that the stiffness provided by the suspension bracket 3 to the first fixing portion 33 and the second fixing portion 34 can be decoupled along the vehicle width direction (i.e., Y direction) and along the vehicle length direction (i.e., X direction), providing multiple possibilities for the stiffness of the suspension bracket 3.

[0052] In some embodiments, Figure 3 and Figure 4 As shown, the first suspension component 1 includes a first bushing 11 and a first core 13. The first core 13 is arranged in the first bushing 11, and a solid first main spring 12 is arranged between the first bushing 11 and the first core 13. Among them, the first bushing 11 is arranged on the inner side of the first fixing portion 33, and the first main spring 12 is arranged as a solid structure, which can provide greater rigidity for the rear suspension structure and ensure the rigidity requirement of the rear suspension structure for the first suspension component 1. Exemplarily, the first main spring 12 is made of rubber material, and the first core 13 is an iron core. The first core 13 is fixed in the first bushing 11 by vulcanization of the first main spring 12. The first main spring 12 slows down the rigidity change of the first fixing portion 33 and ensures the vibration isolation performance of the first suspension component 1. Furthermore, the first core 13 is arranged as a hollow structure to achieve a weight reduction effect and realize the lightweight of the rear suspension structure.

[0053] In some embodiments, the two ends of the first suspension component 1 are respectively in the same plane as the two ends of the first fixing portion 33. The end surface of the first suspension component 1 is adapted to the end surface of the first fixing portion 33, which is beneficial to the tensile force of the first main spring 12, reduces the shear force, and improves the durability of the first main spring 12.

[0054] In some embodiments, Figure 5 and Figure 6 As shown, the second suspension assembly 2 includes a second bushing 21 and a second core 23, the second core 23 is arranged in the second bushing 21, and a second main spring 22 is arranged between the second bushing 21 and the second core 23. Among them, the second bushing 21 is arranged on the inner side of the second fixing portion 34. Exemplarily, the second main spring 22 is made of rubber material, the second core 23 is an iron core, and the second core 23 is fixed in the second bushing 21 by vulcanization of the second main spring 22. The second main spring 22 slows down the stiffness change of the second fixing portion 34, thereby ensuring the vibration isolation performance of the second suspension assembly 2.

[0055] A through hole 24 is provided in the second core body 23 , and the through hole 24 is used as a bolt mounting hole for mounting the rear suspension structure.

[0056] A groove 221 is provided in the second main spring 22, and a protrusion 222 is provided on the wall away from the second core 23 and extending toward the second core 23. The first main spring 12 is a solid structure, while the second main spring 22 is a hollow structure with the groove 221, so that the stiffness of the second main spring 22 is not greater than that of the first main spring 12, which is beneficial to the idling and starting of the vehicle.

[0057] Specifically, two grooves 221 are provided in the second main spring 22, and the two grooves 221 are respectively provided on the upper and lower sides of the second core 23, and the grooves 221 are arranged in a U shape as a whole. The second main spring 22 forms a support body 223 between the two grooves 221, and the support body 223 mainly satisfies the supporting performance of the second suspension component 2 along the length direction of the vehicle (i.e., the X direction). If the protrusion 222 is not compressed to contact the inner wall of the groove 221 close to the second core 23, the support body 223 of the second main spring 22 provides support; if the protrusion 222 is compressed to contact the inner wall of the groove 221 close to the second core 23, the protrusion 222 and the support body 223 provide support at the same time, and the stiffness of the second main spring 22 will increase; if the protrusion 222 is compressed to interfere with the inner wall of the groove 221 close to the second core 23, the groove 221 almost disappears, the second main spring 22 is solid, and the stiffness of the second main spring 22 is the largest. The groove 221 can be provided to change the stiffness of the second main spring 22 to meet different requirements of vehicles.

[0058] Furthermore, a weight-reducing hole 25 is provided on the second core 23 to help reduce the weight of the second core 23 .

[0059] In some embodiments, the first main spring 12 and the second main spring 22 have different stiffnesses. For example, the stiffnesses of the plurality of first main springs 12 on one side of the suspension bracket 3 and the two second main springs 22 on the other side of the suspension bracket 3 are different, that is, the two sides of the suspension bracket 3 have two different stiffnesses, so as to provide different stiffnesses for the subsequent suspension structure to meet different stiffness requirements.

[0060] In some embodiments, at least two of the plurality of first main springs 12 have different stiffnesses. For example, there are two first main springs 12, and the two first main springs 12 have different stiffnesses; there are four first main springs 12, and at least two of the four first main springs 12 have different stiffnesses.

[0061] In some embodiments, at least two of the plurality of second main springs 22 have different stiffnesses. For example, two second main springs 22 are provided, and the two second main springs 22 have different stiffnesses; four second main springs 22 are provided, and at least two of the four second main springs 22 have different stiffnesses.

[0062] A second embodiment of the present invention provides a vehicle, comprising the above-mentioned rear suspension structure.

[0063] The rear suspension structure is configured such that a plurality of first suspension components 1 are installed on one side of a suspension bracket 3, and a plurality of second suspension components 2 are installed on the other side of the suspension bracket 3. The suspension bracket 3 provides better support and greater stability for the first suspension components 1 and the second suspension components 2, thereby improving the rigidity of the rear suspension structure and further improving the vibration isolation performance of the rear suspension structure.

[0064] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0065] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0066] In the description of the present invention, "plurality" means two or more.

[0067] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact but are in contact with each other via another feature therebetween.

[0068] In the description of the present invention, a first feature “above”, “over” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0069] In the description of the present invention, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0070] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A rear suspension structure, characterized in that: It comprises a suspension bracket, a first side of which is provided with a plurality of first suspension components, a second side of which is opposite to the first side is provided with a plurality of second suspension components, the first suspension components extend along a first direction, and the second suspension components extend along a second direction.

2. A rear suspension structure according to claim 1, characterized in that: The first direction and the second direction are different.

3. A rear suspension structure according to claim 1 or 2, characterized in that: The first direction is along the width direction of the vehicle, and the second direction is along the height direction of the vehicle.

4. The rear suspension structure according to claim 1, characterized in that: A plurality of the first suspension components are arranged on the same straight line and / or a plurality of the second suspension components are arranged on the same straight line.

5. The rear suspension structure according to claim 1, characterized in that: The suspension bracket includes a first suspension rod and a second suspension rod arranged crosswise, the first suspension component is arranged at a first end of the first suspension rod and a first end of the second suspension rod, and the second suspension component is arranged at a second end of the first suspension rod and a second end of the second suspension rod.

6. The rear suspension structure according to claim 5, characterized in that: The first end of the first suspension rod and the first end of the second suspension rod are both provided with a first fixing portion, and the first fixing portion is used to connect the first suspension component. The second end of the first suspension rod and the second end of the second suspension rod are both provided with a second fixing portion, and the second fixing portion is used to connect the second suspension component.

7. The rear suspension structure according to claim 1, characterized in that: The first suspension component includes a first bushing and a first core, wherein the first core is disposed in the first bushing, and a solid first main spring is disposed between the first bushing and the first core.

8. The rear suspension structure according to claim 7, characterized in that: The second suspension component includes a second bushing and a second core, the second core is arranged in the second bushing, a second main spring is arranged between the second bushing and the second core, a through hole is arranged in the second core, a groove is arranged in the second main spring, and a protrusion is extended from the wall surface away from the second core toward the direction of the second core.

9. The rear suspension structure according to claim 8, characterized in that: The first main spring and the second main spring have different stiffnesses and / or the stiffnesses of at least two of the plurality of first main springs are different and / or the stiffnesses of at least two of the plurality of second main springs are different.

10. A vehicle, characterized in that: A rear suspension structure comprising any one of claims 1-9.

Images