Air spring assembly and vehicle

By incorporating a buffer ring and a double-layer sealing ring into the air spring assembly, the problem of abnormal noise in the air spring assembly has been solved, improving the comfort of new energy vehicles and the service life of components, while reducing sealing costs.

CN122191234APending Publication Date: 2026-06-12LANXUN AUTO AIR SUSPENSION SYSTEM (CHUZHOU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
LANXUN AUTO AIR SUSPENSION SYSTEM (CHUZHOU) CO LTD
Filing Date
2024-12-10
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

In existing air spring assemblies, the rotation between the air spring and other components causes abnormal noise, affecting the user experience, especially in new energy vehicles.

Method used

A buffer ring is installed between the piston and the shock absorber of the air spring. The buffer ring is made of flexible material and has protrusions on its outer surface to increase rotational friction and suppress the relative rotation of the shock absorber and the piston. At the same time, a double-layer sealing ring structure is used to prevent gas leakage.

Benefits of technology

It effectively reduces abnormal noise in the air spring assembly, improves the user experience, especially in new energy vehicles, extends the service life of components, and reduces sealing costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application provides an air spring assembly and a vehicle. The air spring assembly includes an air spring and a shock absorber. A buffer ring made of flexible material is provided on the outer wall of the shock absorber. The air spring includes a piston. The inner side of the buffer ring is fixed relative to the outer wall of the shock absorber, and a protrusion is provided on the outer side of the buffer ring. The protrusion of the buffer ring contacts the inner wall of the piston, and the buffer ring is used to suppress relative rotation between the shock absorber and the piston. The air spring assembly provided in this application provides a buffer ring between the piston of the air spring and the shock absorber. The protrusion on the outer side of the buffer ring can increase the rotational friction between the shock absorber and the piston, thereby suppressing relative rotation between the shock absorber and the piston. Moreover, the buffer ring in this application is made of flexible material, which can reduce abnormal noise generated by friction between the piston of the air spring and the shock absorber, improving the user experience.
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Description

Technical Field

[0001] This application belongs to the field of air spring technology, specifically relating to an air spring assembly and a vehicle. Background Technology

[0002] An air spring is made by filling a sealed container with compressed air, utilizing the compressibility of gas to achieve its elastic effect. Air spring devices can be used in vehicle shock absorption systems, possessing ideal non-linear elastic characteristics. With the addition of a height adjustment device, the vehicle height does not change with the increase or decrease of load, and air springs can improve the ride comfort of the vehicle.

[0003] The air spring assembly includes the air spring and other related components connected to it. Currently, there is some rotation between the air spring and other components, causing abnormal noise from the air spring assembly, thus reducing the user experience. Summary of the Invention

[0004] In view of the problems existing in the prior art, an air spring assembly and vehicle are proposed. Using this air spring assembly and vehicle, the abnormal noise generated by the air spring assembly can be reduced.

[0005] This application provides the following solutions.

[0006] In a first aspect, this application provides an air spring assembly, including: an air spring and a shock absorber;

[0007] An air spring is connected to the shock absorber. The air spring includes a piston, which is disposed around the outside of the shock absorber.

[0008] The outer wall of the shock absorber is equipped with a buffer ring, which is made of flexible material. The air spring includes a piston.

[0009] The inner side of the buffer ring is fixed relative to the outer side wall of the shock absorber, and the outer side of the buffer ring is provided with protrusions;

[0010] The protrusions of the buffer ring contact the inner wall of the piston, and the buffer ring is used to suppress the relative rotation between the damper and the piston.

[0011] In some possible embodiments, the outer wall of the shock absorber is provided with a connecting part that is circumferentially fixed to the shock absorber. The connecting part is provided with a groove, and a buffer ring is provided in the groove. The inner side of the buffer ring is fixed relative to the connecting part.

[0012] In some possible embodiments, the buffer ring is provided with N protrusions arranged circumferentially, where N is an integer greater than 0;

[0013] The length of the protrusion in the width direction of the buffer ring is the same as the width of the buffer ring;

[0014] The length of the protrusion in the circumference of the buffer ring is equal to 1 / 2N of the circumference of the buffer ring.

[0015] In some possible embodiments, each of the N protrusions is provided with a first side and a second side facing the piston;

[0016] The angle between the first side and the second side is greater than 90 degrees and less than 180 degrees.

[0017] In some possible embodiments, the buffer ring is made of rubber.

[0018] In some possible embodiments, it further includes: a first sealing ring and a second sealing ring;

[0019] The first sealing ring is located at the upper sealing port of the air spring and is used to prevent gas leakage inside the air spring.

[0020] The second sealing ring is located at the lower sealing port of the air spring. The second sealing ring is used to prevent gas leakage inside the air spring, and the shape of the second sealing ring is the same as that of the first sealing ring.

[0021] In some possible embodiments, the first sealing ring includes a first sealing layer and a second sealing layer that are interconnected;

[0022] The top surface of the first sealing layer is the top surface of the first sealing ring, the bottom surface of the first sealing layer is connected to the top surface of the second sealing layer, and the bottom surface of the second sealing layer is the bottom surface of the first sealing ring.

[0023] In some possible embodiments, the first sealing layer contacts the inner wall of the piston and the outer wall of the shock absorber to form a first seal;

[0024] The second sealing layer contacts the inner wall of the piston and the outer wall of the shock absorber, forming a second seal.

[0025] In some possible embodiments, the air spring assembly is adapted to new energy vehicles or fuel vehicles.

[0026] Secondly, this application provides a vehicle including an air spring assembly, which includes an air spring and a shock absorber;

[0027] An air spring is connected to the shock absorber, and the air spring includes a piston that is disposed around the outside of the shock absorber.

[0028] The outer wall of the shock absorber is equipped with a buffer ring, which is made of flexible material. The air spring includes a piston.

[0029] The inner side of the buffer ring is fixed relative to the outer side wall of the shock absorber, and the outer side of the buffer ring is provided with protrusions;

[0030] The protrusions of the buffer ring contact the inner wall of the piston, and the buffer ring is used to suppress the relative rotation between the damper and the piston.

[0031] In some possible embodiments, the outer wall of the shock absorber is provided with a connecting part that is circumferentially fixed to the shock absorber. The connecting part is provided with a groove, and a buffer ring is provided in the groove. The inner side of the buffer ring is fixed relative to the connecting part.

[0032] In some possible embodiments, the buffer ring is provided with N protrusions arranged circumferentially, where N is an integer greater than 0;

[0033] The length of the protrusion in the width direction of the buffer ring is the same as the width of the buffer ring;

[0034] The length of the protrusion in the circumference of the buffer ring is equal to 1 / 2N of the circumference of the buffer ring.

[0035] In some possible embodiments, each of the N protrusions is provided with a first side and a second side facing the piston;

[0036] The angle between the first side and the second side is greater than 90 degrees and less than 180 degrees.

[0037] In some possible embodiments, the buffer ring is made of rubber.

[0038] In some possible embodiments, it further includes: a first sealing ring and a second sealing ring;

[0039] The first sealing ring is located at the upper sealing port of the air spring and is used to prevent gas leakage inside the air spring.

[0040] The second sealing ring is located at the lower sealing port of the air spring. The second sealing ring is used to prevent gas leakage inside the air spring, and the shape of the second sealing ring is the same as that of the first sealing ring.

[0041] In some possible embodiments, the first sealing ring includes a first sealing layer and a second sealing layer that are interconnected;

[0042] The top surface of the first sealing layer is the top surface of the first sealing ring, the bottom surface of the first sealing layer is connected to the top surface of the second sealing layer, and the bottom surface of the second sealing layer is the bottom surface of the first sealing ring.

[0043] In some possible embodiments, the first sealing layer contacts the inner wall of the piston and the outer wall of the shock absorber to form a first seal;

[0044] The second sealing layer contacts the inner wall of the piston and the outer wall of the shock absorber, forming a second seal.

[0045] In some possible embodiments, the air spring assembly is adapted to new energy vehicles or fuel vehicles.

[0046] The air spring assembly provided in this application embodiment has a buffer ring between the piston of the air spring and the damper. The protrusion on the outer side of the buffer ring can increase the rotational friction between the damper and the piston, thereby suppressing the relative rotation of the damper and the piston. Moreover, the buffer ring in this application is made of flexible material, which can reduce the abnormal noise generated by the friction between the piston of the air spring and the damper, and improve the user experience.

[0047] Other advantages of this application will be explained in more detail with reference to the following description and figures.

[0048] It should be understood that the above description is merely an overview of the technical solution of this application, so as to enable a clearer understanding of the technical means of this application and thus allow for its implementation in accordance with the contents of the specification. To make the above and other objects, features, and advantages of this application more apparent and understandable, specific embodiments of this application are illustrated below. Attached Figure Description

[0049] By reading the detailed description of the exemplary embodiments below, those skilled in the art will understand the advantages and benefits described herein, as well as other advantages and benefits. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0050] Figure 1 A schematic diagram of an air spring assembly provided for an embodiment of this application;

[0051] Figure 2 A schematic diagram of another air spring assembly provided in an embodiment of this application;

[0052] Figure 3a A side sectional view of a buffer ring provided in an embodiment of this application;

[0053] Figure 3b A top view of a vehicle slowly accelerating in a lap, as provided in an embodiment of this application;

[0054] Figure 3c A 3D schematic diagram of a buffer ring provided in an embodiment of this application;

[0055] Figure 4a A 3D schematic diagram of a first sealing ring provided for an embodiment of this application;

[0056] Figure 4b A side sectional view of a first sealing ring provided in an embodiment of this application;

[0057] Figure 5 This is a schematic diagram of a vehicle provided in an embodiment of this application.

[0058] The attached diagram lists the components represented by each number as follows:

[0059] Air spring 100; piston 101; shock absorber 200; buffer ring 201; protrusion 211; first side 221; second side 231; connecting part 202; groove 203; first sealing ring 300; first sealing layer 301; second sealing layer 302; second sealing ring 400; vehicle 10; air spring assembly 20.

[0060] In the accompanying drawings, the same or corresponding reference numerals indicate the same or corresponding parts. Detailed Implementation

[0061] Exemplary embodiments of this application will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of this application are shown in the drawings, it should be understood that this application can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of this application and to fully convey the scope of this application to those skilled in the art.

[0062] In the description of embodiments of this application, it should be understood that terms such as "comprising" or "having" are intended to indicate the presence of the disclosed features, numbers, steps, actions, components, portions, or combinations thereof in this specification, and do not exclude the possibility of the presence of one or more other features, numbers, steps, actions, components, portions, or combinations thereof. The terms "first," "second," etc., are used only for ease of description to distinguish identical or similar technical features and should not be construed as indicating or implying the relative importance or number of these technical features. Thus, a feature defined by "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of embodiments of this application, unless otherwise stated, the term "multiple" means two or more.

[0063] Unless otherwise stated, " / " signifies "or," for example, A / B can mean either A or B. "And / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. For ease of description, spatial relation terms such as "below," "under," "above," and "upper" may be used here to describe the relationship between one element or feature shown in the accompanying drawings and other elements or features. It will be understood that these spatial relation terms are intended to include directions other than those depicted in the accompanying drawings for devices in use or operation.

[0064] With the rapid development of new energy vehicles in China, more and more new energy vehicles are being equipped with air springs. However, as the range requirements of new energy vehicles increase, these vehicles are becoming increasingly heavier. Currently, most air spring structures on the market were developed for use in gasoline vehicles, and their application in new energy vehicles can lead to steering noise and other malfunctions, affecting user comfort.

[0065] This application provides an air spring assembly that can reduce the problem of abnormal noise in the air springs of new energy vehicles.

[0066] It should also be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0067] See Figure 1 The figure is a schematic diagram of an air spring assembly provided in an embodiment of this application.

[0068] like Figure 1 As shown, the air spring assembly provided in this application embodiment includes: an air spring 100 and a shock absorber 200;

[0069] An air spring 100 is connected to a shock absorber 200. The air spring 100 includes a piston 101, which is disposed around the outside of the shock absorber 200.

[0070] The side wall of the shock absorber 200 is provided with a buffer ring 201, which is made of flexible material. The air spring 100 includes a piston 101.

[0071] The inner side of the buffer ring 201 is fixed relative to the side wall of the shock absorber 200, and the outer side of the buffer ring 201 is provided with protrusions.

[0072] The protrusion of the buffer ring 201 contacts the inner side of the piston 101, and the buffer ring 201 is used to suppress the relative rotation of the damper 200 and the piston 101.

[0073] It should be noted that the air spring assembly in this embodiment can be the front air spring assembly in a new energy vehicle. The front air spring assembly is a key component of the automotive suspension system, belonging to the air suspension system, and is mainly used to provide shock absorption and support functions for the vehicle. The air spring assembly in this embodiment includes at least an air spring and a shock absorber. In actual applications, the air spring assembly may also include other components, which are not limited here. The front air spring assembly provided in this embodiment has two chamber volumes with different stiffnesses. The air chamber can adopt a welded integral structure. The upper part of the bladder is pressed together with the air chamber by a pressure ring, the middle part of the bladder is pressed together with the aluminum sleeve, and the lower part of the bladder is pressed together with the damper. The two chamber volumes can be switched through a stiffness conversion valve to achieve different stiffnesses of the front air spring assembly.

[0074] In this embodiment, a buffer ring is provided on the outer wall of the shock absorber. The buffer ring can be directly disposed on the outer wall of the shock absorber, or it can be fixed to the outer wall of the shock absorber by other components. This embodiment does not limit the specific type of buffer ring. The buffer ring in this embodiment is made of a flexible material. Specifically, the material of the buffer ring can be flexible materials such as rubber, plastic, silicone, fiber fabric, or foam. As an example, the buffer ring in this embodiment can be a rubber ring. The protrusions on the buffer ring in this embodiment can be circular, square, or other shapes. The size of the protrusions on the buffer ring is not limited in this embodiment. As long as the protrusions can increase the force between the buffer ring and the inner surface of the piston, thereby suppressing the relative rotation between the shock absorber and the piston, they are all within the scope described in this embodiment.

[0075] Therefore, the air spring assembly provided in this application embodiment has a buffer ring between the piston of the air spring and the shock absorber. The protrusion on the outer side of the buffer ring can increase the rotational friction between the shock absorber and the piston, thereby suppressing the relative rotation of the shock absorber and the piston. Moreover, the buffer ring in this application is made of flexible material, which can reduce the abnormal noise generated by the friction between the piston of the air spring and the shock absorber. It is especially suitable for new energy vehicles with heavy weight, which can improve the user experience and, to a certain extent, improve the service life of the air spring and the shock absorber.

[0076] As one possible implementation method, such as Figure 2As shown, in this embodiment, the sidewall of the shock absorber 200 is provided with a connecting portion 202 that is circumferentially fixed to the shock absorber 200. The connecting portion 202 is provided with a groove 203, and a buffer ring 201 is provided in the groove 203. The inner side surface of the buffer ring 201 is fixed relative to the connecting portion 202. It should be noted that the connecting portion 202 is provided on the sidewall of the shock absorber 200, and the connecting portion 202 is circumferentially fixed to the shock absorber 200. When the shock absorber 200 rotates circumferentially, the connecting portion 202 will rotate circumferentially with the shock absorber 200. The connecting portion is provided with a groove, which can be a ring-shaped groove. The groove on the connecting portion can be used to fix the buffer ring. In this embodiment, the inner side surface of the buffer ring is fixed relative to the groove of the connecting portion. In practical applications, the buffer ring and the groove can be glued together or fitted together by a mechanical structure to ensure that the buffer ring does not rotate relative to the connecting portion.

[0077] It should be noted that, since the buffer ring does not rotate relative to the connecting part in this application, and the connecting part does not rotate circumferentially relative to the damper, when the damper rotates circumferentially, the damper will drive the buffer ring to rotate circumferentially together. The protrusion on the buffer ring contacts the inside of the piston, thereby suppressing the circumferential rotation of the damper.

[0078] The buffer ring in the embodiments of this application will be described in detail below.

[0079] Figure 3a This is a side sectional view of the buffer ring. Figure 3b This is a top view of the buffer ring. Figure 3c This is a 3D schematic diagram of the buffer ring. (For example...) Figure 3a , Figure 3b and Figure 3c As shown in the embodiment of this application, the buffer ring provided has N protrusions 211 arranged circumferentially. N is usually an integer greater than 0; as an example, N can be 6. As an example, the length of the protrusion in the width direction of the buffer ring is the same as the width of the buffer ring; the circumferential length of the protrusion is equal to 1 / 2N of the circumference of the buffer ring. Each of the N protrusions has a first side surface 221 and a second side surface 231 facing the piston; the included angle between the first side surface 221 and the second side surface 231 is greater than 90 degrees and less than 180 degrees. As a possible implementation, in the embodiment of this application, each protrusion 211 has a first side surface 221 and a second side surface 231 facing the piston, which can increase the interaction force between the buffer ring and the inner wall of the piston, thereby suppressing the circumferential rotation of the shock absorber.

[0080] In addition to providing a buffer ring to suppress the circumferential rotation of the damper and reduce abnormal noise caused by friction between the piston of the air spring and the damper, the air spring assembly in this embodiment also provides a first sealing ring and a second sealing ring.

[0081] like Figure 2 As shown, the air spring assembly provided in this embodiment further includes a first sealing ring 300 and a second sealing ring 400. The first sealing ring is disposed at the upper sealing opening of the air spring and is used to prevent gas leakage within the air spring. The second sealing ring is disposed at the lower sealing opening of the air spring and is used to prevent gas leakage within the air spring.

[0082] The first sealing ring in this application will be specifically described below through an example.

[0083] Figure 4a This is a 3D schematic diagram of the first sealing ring. Figure 3b This is a side sectional view of the first sealing ring. (Example) Figure 4a and Figure 4b As shown, the first sealing ring 300 includes a first sealing layer 301 and a second sealing layer 302 connected to each other. The top surface of the first sealing layer 301 is the top surface of the first sealing ring 300, and the bottom surface of the first sealing layer 301 is connected to the top surface of the second sealing layer 302. The bottom surface of the second sealing layer 302 is the bottom surface of the first sealing ring 300. It should be noted that the axial thickness of the first sealing ring 300 can be greater than the radial width of the first sealing ring 300. In this embodiment, the shape of the second sealing ring 400 can be the same as the shape of the first sealing ring 300, which will not be described again here.

[0084] It should be noted that both the first and second sealing rings in this embodiment can be made of rubber. The first sealing ring in this embodiment consists of a first sealing layer and a second sealing layer. The first sealing layer contacts the inner wall of the piston and the outer wall of the shock absorber, forming a first seal. The second sealing layer contacts the inner wall of the piston and the outer wall of the shock absorber, forming a second seal. Compared to O-rings in related technologies, the first sealing ring in this application consists of two sealing layers. The first sealing layer prevents external dust from entering the air spring, and the second sealing layer prevents fluid leakage inside the air spring. Furthermore, the double-layered sealing ring design in the axial direction gives the first sealing ring in this application a certain axial thickness, enabling it to function as a Glyd ring and provide a certain axial support capability.

[0085] In summary, the air spring assembly provided in this application embodiment features a raised buffer ring between the air spring piston and the shock absorber. This buffer ring suppresses relative rotation between the shock absorber and the piston. Furthermore, the buffer ring is made of a flexible material, which reduces noise generated by friction between the air spring piston and the shock absorber, making it particularly suitable for heavier new energy vehicles and improving the user experience. In addition, this application also includes a first and second sealing ring of a specific shape. These rings integrate support, waterproofing, and dustproofing functions. Compared to sealing assemblies composed of multiple components in related technologies, the first and second sealing rings of this application reduce the sealing cost of the air spring assembly, and the installation method is simpler and more convenient. The buffer ring, first sealing ring, and second sealing ring provided in this application embodiment can, to a certain extent, improve the service life of the air spring and the shock absorber.

[0086] Based on the air spring assembly provided in the above embodiments, this application also provides a vehicle.

[0087] like Figure 5 As shown in the embodiment of this application, the vehicle 10 includes an air spring assembly 20, which includes an air spring and a shock absorber. The air spring is connected to the shock absorber and includes a piston, which is disposed around the outside of the shock absorber. A buffer ring is provided on the outer wall of the shock absorber. The buffer ring is made of a flexible material, and the air spring includes the piston. The inner side of the buffer ring is fixed relative to the outer wall of the shock absorber, and the outer side of the buffer ring has a protrusion. The protrusion of the buffer ring contacts the inner wall of the piston, and the buffer ring is used to suppress the relative rotation of the shock absorber and the piston.

[0088] In some possible embodiments, the outer wall of the shock absorber is provided with a connecting part that is circumferentially fixed to the shock absorber. The connecting part is provided with a groove, and a buffer ring is provided in the groove. The inner side of the buffer ring is fixed relative to the connecting part.

[0089] In some possible embodiments, the buffer ring is provided with N protrusions arranged circumferentially, where N is an integer greater than 0; the length of the protrusions in the width direction of the buffer ring is the same as the width of the buffer ring; the length of the protrusions in the circumferential direction of the buffer ring is equal to 1 / 2N of the circumference of the buffer ring.

[0090] In some possible embodiments, each of the N protrusions has a first side and a second side facing the piston; the included angle between the first side and the second side is greater than 90 degrees and less than 180 degrees.

[0091] In some possible embodiments, the buffer ring is made of rubber.

[0092] In some possible embodiments, the air spring assembly further includes: a first sealing ring and a second sealing ring; the first sealing ring is disposed at the upper sealing opening of the air spring and is used to prevent gas leakage within the air spring; the second sealing ring is disposed at the lower sealing opening of the air spring and is used to prevent gas leakage within the air spring, and the shape of the second sealing ring is consistent with the shape of the first sealing ring.

[0093] In some possible embodiments, the first sealing ring includes a first sealing layer and a second sealing layer that are connected to each other; the top surface of the first sealing layer is the top surface of the first sealing ring, the bottom surface of the first sealing layer is connected to the top surface of the second sealing layer, and the bottom surface of the second sealing layer is the bottom surface of the first sealing ring.

[0094] In some possible embodiments, a first sealing layer contacts the inner wall of the piston and the outer wall of the shock absorber to form a first seal; a second sealing layer contacts the inner wall of the piston and the outer wall of the shock absorber to form a second seal.

[0095] In some possible embodiments, the air spring assembly is the front air spring assembly of the vehicle.

[0096] It should be noted that the vehicle in the embodiments of this application may include various components of the aforementioned air spring assembly embodiments and achieve the same effect and function, which will not be repeated here.

[0097] While illustrative embodiments of this application have been detailed and described in the accompanying drawings and foregoing description, they should be considered illustrative rather than restrictive. It should be understood that only certain exemplary embodiments have been shown and described, and all variations and modifications intended to protect within the spirit and scope of the claimed invention are intended to be protected. It should be understood that while the use of terms such as preferred, preferred, or more preferred in the above description to indicate that such described features may be more desirable, it may not be necessary, and implementations without these features may be contemplated, for example, within the scope of the invention defined by the appended claims. When reading the claims, the use of terms such as “a,” “an,” “at least one,” or “at least a portion” is not intended to limit the claim to one item unless specifically stated otherwise in the claim. When the language “at least a portion” and / or “a portion” is used, an item may include a portion and / or the entire item unless specifically stated otherwise.

[0098] While the spirit and principles of this application have been described above with reference to several specific embodiments, it should be understood that this application is not limited to the disclosed specific embodiments, and the division of aspects does not imply that features in these aspects cannot be combined. This application is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. An air spring assembly, characterized in that, include: Air springs and shock absorbers; The air spring is connected to the shock absorber, and the air spring includes a piston disposed around the outside of the shock absorber. The outer wall of the shock absorber is provided with a buffer ring, which is made of a flexible material, and the air spring includes a piston. The inner side of the buffer ring is fixed relative to the outer side wall of the shock absorber, and the outer side of the buffer ring is provided with protrusions; The protrusion of the buffer ring contacts the inner wall of the piston, and the buffer ring is used to suppress the relative rotation of the damper and the piston.

2. The air spring assembly according to claim 1, characterized in that, The outer wall of the shock absorber is provided with a connecting part that is circumferentially fixed to the shock absorber. The connecting part is provided with a groove, and the buffer ring is provided in the groove. The inner side of the buffer ring is fixed relative to the connecting part.

3. The air spring assembly according to claim 1, characterized in that, The buffer ring is provided with N protrusions arranged circumferentially, where N is an integer greater than 0; The length of the protrusion in the width direction of the buffer ring is the same as the width of the buffer ring; The length of the protrusion in the circumferential direction of the buffer ring is equal to 1 / 2N of the circumference of the buffer ring.

4. The air spring assembly according to claim 3, characterized in that, Each of the N protrusions has a first side and a second side facing the piston; The angle between the first side and the second side is greater than 90 degrees and less than 180 degrees.

5. The air spring assembly according to any one of claims 1-4, characterized in that, The buffer ring is made of rubber.

6. The air spring assembly according to claim 1, characterized in that, Also includes: First sealing ring and second sealing ring; The first sealing ring is disposed at the upper sealing port of the air spring, and the first sealing ring is used to prevent gas leakage inside the air spring; The second sealing ring is disposed at the lower sealing port of the air spring. The second sealing ring is used to prevent gas leakage inside the air spring, and the shape of the second sealing ring is the same as that of the first sealing ring.

7. The air spring assembly according to claim 6, characterized in that, The first sealing ring includes a first sealing layer and a second sealing layer that are interconnected. The top surface of the first sealing layer is the top surface of the first sealing ring, the bottom surface of the first sealing layer is connected to the top surface of the second sealing layer, and the bottom surface of the second sealing layer is the bottom surface of the first sealing ring.

8. The air spring assembly according to claim 7, characterized in that, The first sealing layer contacts the inner wall of the piston and the outer wall of the shock absorber to form a first seal; The second sealing layer contacts the inner wall of the piston and the outer wall of the shock absorber, forming a second seal.

9. The air spring assembly according to claim 1, characterized in that, The air spring assembly is compatible with new energy vehicles or fuel vehicles.

10. A vehicle, characterized in that, Includes the air spring assembly as described in any one of claims 1-10.