CN223178050U

CN223178050U - Shock absorber assembly and vehicle

Info

Publication number: CN223178050U
Application number: CN202422220095.XU
Authority: CN
Inventors: 戎周; 董艳伟; 马柱威; 董欣; 郭敬; 富林峰
Original assignee: Exquisite Automotive Systems Co Ltd
Current assignee: Exquisite Automotive Systems Co Ltd
Priority date: 2024-09-10
Filing date: 2024-09-10
Publication date: 2025-08-01
Anticipated expiration: 2034-09-10

Abstract

The present utility model discloses a shock absorber assembly and a vehicle. According to the present utility model, the shock absorber assembly includes a cylinder, a piston rod, an oil guide channel and an accumulator, wherein a shock absorber chamber is formed in the cylinder; the piston rod is connected to the vehicle body and is provided with a piston that moves in the shock absorber chamber, and the piston divides the shock absorber chamber into a first chamber and a second chamber; the oil guide channel is respectively connected to the first chamber and the second chamber and is suitable for circulating a buffer solution; the accumulator is deformably arranged in the first chamber and/or the second chamber, and the accumulator is suitable for deforming according to the pressure in the shock absorber chamber. According to the present utility model, the accumulator is arranged in the shock absorber chamber, and there is no need to additionally provide a shell structure for the accumulator, thereby reducing the volume and weight of the shock absorber assembly.

Description

Shock absorber assembly and vehicle

Technical Field

The utility model relates to the field of vehicles, in particular to a shock absorber assembly and a vehicle.

Background

The full-active vibration damper can apply active power to adjust the posture of the vehicle body in real time, and driving comfort and operability can be greatly improved. In the related art, the energy accumulator is arranged outside the shock absorber, so that the shock absorption effect of the shock absorber can be improved, but the external energy accumulator occupies external space, is unfavorable to system arrangement, and the external energy accumulator needs to use additional cylinder barrel materials to store gas, so that the system is heavy.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems existing in the prior art. To this end, an object of the present utility model is to propose a damper assembly. According to the utility model discloses a shock absorber assembly sets up the energy storage ware in the damping intracavity, need not the additional shell structure who sets up the energy storage ware, has reduced the volume and the weight of shock absorber assembly.

The utility model further provides a vehicle comprising the shock absorber assembly.

The shock absorber assembly comprises a cylinder barrel, a piston rod, an oil guide channel and an energy accumulator, wherein a shock absorption cavity is formed in the cylinder barrel, the piston rod is connected with a vehicle body and is provided with a piston moving in the shock absorption cavity, the piston divides the shock absorption cavity into a first cavity and a second cavity, the oil guide channel is respectively communicated with the first cavity and the second cavity and is suitable for circulating buffer liquid, and the energy accumulator is flexibly arranged in the first cavity and/or the second cavity and is suitable for being deformed according to the pressure in the shock absorption cavity.

According to the shock absorber assembly, the cylinder barrel is provided, the shock absorption cavity is formed in the cylinder barrel, the energy accumulator is arranged in the shock absorption cavity in a deformable manner, and the energy accumulator is suitable for being deformed to enable the pressure in the whole shock absorption cavity to be changed when the pressure in the shock absorption cavity is changed, so that the shock absorption effect of the shock absorber assembly is improved, the built-in energy accumulator can directly take the cylinder barrel as a shell of the energy accumulator, the shell structure of the energy accumulator is not required to be additionally arranged, and the weight and the cost of the shock absorber assembly are reduced. And the mode of built-in energy accumulator can reduce the space occupied by the shock absorber assembly, and is favorable for the arrangement of the shock absorber assembly.

According to one embodiment of the utility model, the accumulator is sleeved on at least part of the outer circumference of the piston rod.

According to one embodiment of the utility model, the energy accumulator comprises a base body part and a deformation part, wherein the base body part is fixed with the piston rod, the deformation part is connected with the base body part, the deformation part is deformably arranged in the second cavity, and the deformation part is suitable for deformation according to the pressure in the vibration reduction cavity.

According to an embodiment of the utility model, the deformation portion is configured as an axially deformable bellows arranged around the piston rod and having a cavity formed therein.

According to one embodiment of the utility model, the energy accumulator further comprises an air charging device which is arranged in the base body part, an air charging port which is communicated with the corrugated pipe is arranged on the air charging device, and air can be selectively injected into the cavity of the corrugated pipe by the air charging device.

According to one embodiment of the utility model, the accumulator further comprises a bottom plate surrounding the piston rod and connected to an end of the bellows.

According to one embodiment of the utility model, the accumulator further comprises a spacer disposed at an end of the piston facing the bellows and spaced apart from the bellows.

According to one embodiment of the utility model, the shock absorber assembly further comprises a pump body disposed within the oil guide channel, the pump body being adapted to drive a flow of buffer fluid between the first and second chambers to drive the piston rod to move relative to the cylinder.

According to one embodiment of the utility model, the oil guide channel comprises a first oil channel and a second oil channel, a first damping adjusting valve is arranged on the first oil channel, the first oil channel is used for communicating the first cavity with the second cavity and is suitable for guiding buffer solution of the first cavity into the second cavity, a second damping adjusting valve is arranged on the second oil channel, the second oil channel is used for communicating the second cavity with the first cavity and is suitable for guiding buffer solution of the second cavity into the first cavity, and the first oil channel and the second oil channel are respectively communicated with the pump body.

The vehicle according to the present utility model is briefly described below.

The vehicle according to the utility model comprises the shock absorber assembly in the embodiment, and the shock absorber assembly is arranged in the embodiment, so that the shock absorber assembly can actively or passively adjust the pressure in the shock absorption cavity according to the real-time running state of the vehicle, thereby realizing the buffer shock absorption of the vehicle and ensuring the running stability of the vehicle. Meanwhile, the energy accumulator is arranged in the vibration reduction cavity, so that the volume of the vibration absorber assembly is reduced, the occupied space of the vibration absorber assembly on the vehicle body is reduced, and the arrangement of other structures of the vehicle body is facilitated.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic illustration of a shock absorber assembly according to one embodiment of the present utility model;

FIG. 2 is a schematic illustration of a shock absorber assembly with a piston rod moving downward in accordance with one embodiment of the present utility model;

FIG. 3 is a schematic illustration of an accumulator and piston rod configuration in accordance with one embodiment of the present utility model;

FIG. 4 is a flow chart of a method of controlling a vibration damping system according to one embodiment of the present utility model.

Reference numerals:

a damper assembly 1;

A cylinder 11, a first chamber 111, a second chamber 112;

A piston rod 12 and a piston 121;

an oil guide passage 13, a first oil passage 131, a first damping adjustment valve 1311, a second oil passage 132, and a second damping adjustment valve 1321;

accumulator 14, base 141, bellows 142, inflator 143, bottom plate 144, gasket 145;

pump body 15, check valve 101, and restoring buffer block 102.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

A shock absorber assembly according to an embodiment of the present utility model is described below with reference to fig. 1-4.

The shock absorber assembly 1 comprises a cylinder 11, a piston rod 12, an oil guide channel 13 and an energy accumulator 14, wherein a shock absorbing cavity is formed in the cylinder 11, the piston rod 12 is connected with a vehicle body and is provided with a piston 121 moving in the shock absorbing cavity, the piston 121 divides the shock absorbing cavity into a first cavity 111 and a second cavity 112, the oil guide channel 13 is respectively communicated with the first cavity 111 and the second cavity 112 and is suitable for circulating buffer liquid, the energy accumulator 14 is deformably arranged in the first cavity 111 and/or the second cavity 112, and the energy accumulator 14 is suitable for being deformed according to the pressure in the shock absorbing cavity.

According to the shock absorber assembly 1 provided by the utility model, the cylinder barrel 11 is arranged, the shock absorbing cavity is formed in the cylinder barrel 11, buffer liquid can be contained in the shock absorbing cavity, one end of the piston rod 12 is connected with the vehicle body, the other end of the piston rod 12 extends into the shock absorbing cavity, the piston 121 capable of moving in the shock absorbing cavity is arranged on the piston rod 12, the shock absorbing cavity is divided into the first cavity 111 and the second cavity 112 by the piston 121, the buffer liquid in the first cavity 111 and the buffer liquid in the second cavity 112 can flow mutually through the oil guide channel 13, when the vehicle is excited by a road surface to vibrate during running, the piston rod 12 and the cylinder barrel 11 can move relatively, the pressure of the buffer liquid between the first cavity 111 and the second cavity 112 changes, and the buffer liquid flows between the first cavity 111 and the second cavity 112 through the oil guide channel 13, so that the shock absorber assembly 1 can buffer the vibration of the vehicle, and the vehicle can be kept stable.

The accumulator 14 is disposed in the first cavity 111 or the second cavity 112 in a deformable manner, and can deform when the pressure in the damping cavity changes to balance the pressure in the damping cavity, so as to improve the damping effect of the damper assembly 1, here, the accumulator 14 is disposed in the second cavity 112, when the vehicle is driven by the road surface to cause the wheel to rise (for example, the vehicle passes through a deceleration strip), the wheel rises to drive the cylinder 11 to rise, at this time, the piston rod 12 moves downward relative to the cylinder 11, the volume of the first cavity 111 is reduced, the volume of the second cavity 112 is increased, the buffer solution in the first cavity 111 enters the second cavity 112 through the oil guide channel 13, the accumulator 14 in the second cavity 112 is deformed by the extrusion of the buffer solution, the space occupied by the deformed accumulator 14 is reduced, more space can be reserved for the buffer solution, so that the buffer solution enters the second cavity 112, and at the same time, the impact energy of the road surface can be effectively absorbed and dispersed, so that the damping effect of the damper assembly 1 is improved. Different from the scheme of the external accumulator 14 in the related art, the utility model has the advantages that the accumulator 14 is built in the cylinder 11, the cylinder 11 can be directly used as the shell of the accumulator 14, the shell structure of the accumulator 14 is not required to be additionally arranged, and the weight and the cost of the shock absorber assembly 1 are reduced. And the mode of the built-in energy accumulator 14 can reduce the space occupied by the shock absorber assembly 1, and is beneficial to the arrangement of the shock absorber assembly 1.

In some embodiments, the buffer may be a lubricating oil.

According to one embodiment of the utility model, the accumulator 14 is fitted around at least part of the outer circumference of the piston rod 12. The accumulator 14 is fitted around the outer periphery of the piston rod 12, and the space inside the damper assembly 1 can be used more effectively. This design reduces the need for additional space, making the shock absorber assembly 1 more compact, suitable for installation in confined spaces such as vehicles.

According to one embodiment of the utility model, the accumulator 14 comprises a base part 141 and a deformation part, the base part 141 being fixed to the piston rod 12, the deformation part being connected to the base part 141, the deformation part being deformably arranged in the second chamber 112, the deformation part being adapted to deform in accordance with the pressure in the damping chamber. The base portion 141 is fixed to the piston rod 12 to provide a stable support structure for the accumulator 14, and the deformation portion is responsible for deformation according to pressure changes in the damping chamber, so that the damper assembly 1 can flexibly respond to various impacts and vibrations from the road surface. The deformation portion can absorb and disperse these energies by proper deformation regardless of the variation in the intensity and frequency of the impact, thereby maintaining the stability of the vehicle and the riding comfort.

According to one embodiment of the present utility model, the deformation portion is configured as a bellows 142 disposed around the piston rod 12 and axially deformable in the piston rod 12, the bellows 142 having a cavity formed therein. The bellows 142 is designed such that the deformation portion is more easily deformed in the axial direction to better accommodate the variation in pressure within the damper chamber, helping to more effectively absorb and disperse shock and vibration energy from the road surface. The cavity within bellows 142 may store a quantity of gas or liquid as part of the buffer. The medium in the cavity may be compressed and store energy when impacted and the stored energy may be released gradually after impact to further attenuate vibration. This energy storage and release mechanism helps to improve the overall performance of the shock absorber. Furthermore, the design of bellows 142 around piston rod 12 enables accumulator 14 to more tightly surround piston rod 12, optimizing the space utilization inside shock absorber assembly 1.

According to one embodiment of the present utility model, the accumulator 14 further includes an inflator 143, the inflator 143 being disposed in the base portion 141, the inflator 143 being provided with an inflation port communicating with the bellows 142, the inflator 143 selectively injecting air into the cavity of the bellows 142.

The accumulator 14 has set up aerating device 143, is provided with the inflation inlet on the aerating device 143, and the inflation inlet communicates with bellows 142 in order that aerating device 143 to the inflation of bellows 142, injects air in the cavity of bellows 142 through aerating device 143, can adjust initial pressure and rigidity of accumulator 14 in a flexible way, if not aerifys bellows 142, can lead to the bellows 142 to assemble and be in compressed state to the pressure of damping chamber back that receives the buffer always, can't carry out deformation and deformation conversion that resumes, and then can't realize the function of accumulator 14 reinforcing shock absorber assembly 1 damping effect. Specifically, when the bellows 142 is filled with air, the bellows 142 has a certain rigidity, and at this time, when the piston rod 12 moves downward relative to the cylinder 11 (for example, the vehicle passes through a deceleration strip, and the wheel drives the cylinder 11 to move upward), the buffer solution in the first chamber 111 flows into the second chamber 112, the buffer solution in the second chamber 112 increases, the buffer solution presses the bellows 142, the bellows 142 deforms, the air in the bellows 142 is compressed and absorbs energy, and when the piston rod 12 moves upward relative to the cylinder 11, the buffer solution in the second chamber 112 flows to the first chamber 111, the pressure of the buffer solution on the bellows 142 decreases, and the bellows 142 can quickly complete deformation recovery under the pressure of the air and the force after self deformation, thereby releasing energy. This ability to adjust allows the shock absorber assembly 1 to optimize its shock absorbing performance according to different vehicle types, driving conditions or driver's needs, improving ride comfort and vehicle stability. The pressure in the accumulator 14 can be precisely controlled by the amount of air added into the bellows 142, so that the stable performance of the shock absorber can be ensured under various working conditions, the problems of reduced shock absorption effect or damaged parts and the like caused by insufficient or over-high pressure are avoided, and the safety and stability of the vehicle are improved.

According to one embodiment of the utility model, accumulator 14 further includes a base plate 144, base plate 144 surrounding piston rod 12 and connected to an end of bellows 142. The bottom plate 144 is disposed at the end of the bellows 142, and the contact area between the accumulator 14 and the buffer solution is increased by the bottom plate 144, so that the accumulator 14 can quickly react when the piston rod 12 moves relative to the cylinder 11 (the pressure of the buffer solution in the second cavity 112 changes), and the vibration damping effect of the vibration damper assembly 1 is improved.

According to one embodiment of the utility model, accumulator 14 further includes a spacer 145, spacer 145 being disposed at an end of piston 121 facing bellows 142 and spaced from bellows 142. A gasket 145 is provided on piston 121 and bottom plate 144 is spaced to prevent damage to bellows 142 from striking piston 121 when the deformation is restored.

According to one embodiment of the utility model, the shock absorber assembly 1 further comprises a pump body 15, the pump body 15 being in communication with the oil guide channel 13, the pump body 15 being adapted to drive the flow of the buffer fluid between the first and second chambers 111, 112 to drive the piston rod 12 to move relative to the cylinder 11. The pump body 15 can be simply understood as a driving device for driving the buffer solution to flow, and taking the example that the piston rod 12 moves downwards (the wheel rises), when the pump body 15 works, the pump body 15 actively extracts the buffer solution in the first cavity 111 and conveys the buffer solution to the second cavity 112, the pressure difference between the two cavities causes the cylinder 11 to drive the wheel to move upwards (the piston rod 12 is fixed with the vehicle body, the piston rod 12 is regarded as a static state here), and the buffer solution in the second cavity 112 is injected into the pump body 15 like the second cavity 112 to increase the pressure in the second cavity 112, so that the buffer solution in the second cavity 112 can push the bottom plate 144 to move upwards to enable the bellows 142 to compress upwards for deformation energy absorption, and meanwhile, the gas volume of the accumulator 14 is reduced, so that the requirement that the space occupied by the piston rod 12 in the damping cavity is increased can be met. The arrangement of the pump body 15 enables the shock absorber assembly 1 to actively adjust the posture of the vehicle body according to the real-time running condition of the vehicle, and the flexibility is higher.

According to one embodiment of the utility model, the oil guide channel 13 comprises a first oil channel 131 and a second oil channel 132, wherein a first damping adjusting valve 1311 is arranged on the first oil channel 131, the first oil channel 131 is communicated with the second cavity 112 and is suitable for guiding buffer liquid of the first cavity 111 into the second cavity 112, a second damping adjusting valve 1321 is arranged on the second oil channel 132, the second oil channel 132 is communicated with the second cavity 112 and is suitable for guiding buffer liquid of the second cavity 112 into the first cavity 111, and the first oil channel 131 and the second oil channel 132 are respectively communicated with the pump body 15.

The first oil path 131 and the second oil path 132 are arranged to enable the flow paths of the buffer solution between the first cavity 111 and the second cavity 112 to be independent, for example, a check valve 101 can be arranged on the first oil path 131 and the second oil path 132 respectively, when the road surface stimulates the wheel to ascend or descend to cause the piston rod 12 to move relative to the cylinder 11, or the vehicle body posture needs to be actively adjusted, the buffer solution between the first cavity 111 and the second cavity 112 can select a corresponding flow path according to actual situations, for example, when the piston rod 12 moves downwards relative to the cylinder 11, the buffer solution in the first cavity 111 enters the second cavity 112 through the first oil path 131, and when the piston rod 12 moves upwards relative to the cylinder 11, the buffer solution in the second cavity 112 enters the first cavity 111 through the second oil path 132. The first oil path 131 and the second oil path 132 are respectively communicated with the pump body 15, so that the shock absorber assembly 1 can actively control the flow of buffer liquid in the two oil paths, and the vehicle body posture can be actively adjusted conveniently.

Meanwhile, the shock absorber assembly 1 realizes bidirectional damping adjustment by providing the first damping adjustment valve 1311 and the second damping adjustment valve 1321 in the first oil passage 131 and the second oil passage 132, respectively. The first oil passage 131 is provided with a first damping adjustment valve 1311 for controlling the flow of buffer fluid (e.g., oil) from the first chamber 111 to the second chamber 112 to thereby adjust the damping of the compression stroke of the accumulator 14, and the second oil passage 132 is provided with a second damping adjustment valve 1321 for controlling the flow of buffer fluid from the second chamber 112 to the first chamber 111 to thereby adjust the damping of the tension stroke of the accumulator 14. By means of the design scheme, the damper can flexibly adjust damping force according to different running working conditions and requirements, the damping effect of the damper assembly 1 can be better controlled, and running stability and comfort of a vehicle are improved.

In some embodiments, the top of the accumulator 14 is also provided with a rebound buffer block 102.

The vehicle according to the present utility model is briefly described below.

The vehicle according to the present utility model includes the damper assembly 1 in the above-described embodiment, and since the vehicle according to the present utility model is provided with the damper assembly 1 in the above-described embodiment, the damper assembly 1 can actively or passively adjust the pressure in the damper chamber according to the real-time running state of the vehicle, thereby realizing the buffer damping of the vehicle, and ensuring the running stability of the vehicle. Meanwhile, the energy accumulator 14 is arranged in the vibration reduction cavity, so that the volume of the vibration reduction device assembly 1 is reduced, the occupied space of the vibration reduction device assembly 1 on a vehicle body is reduced, and the arrangement of other structures of the vehicle body is facilitated.

The present utility model also relates to a vibration damping system for a vehicle, the vibration damping system including the vibration damper assembly 1 of the above embodiment, and the control method of the vibration damping system can be simply understood as that a running signal of the vehicle is transmitted (signal receiver), the vibration damping system judges whether the pump body 15 is required to operate (i.e., judges whether the active adjustment or the passive adjustment) based on the signal, if the pump body 15 is not required to operate, the vibration damping system realizes a function of damping adjustment, if the pump body 15 is required to operate, judges a moving direction of the piston rod 12 relative to the cylinder 11 (i.e., whether a vehicle body posture is required to be raised or lowered), when the piston rod 12 moves downward relative to the cylinder 11, the pump body 15 injects a buffer into the second chamber 112, the first damping adjustment valve 1311 is adjusted to a softest state (ensures that the buffer can rapidly enter the second chamber 112), when the piston rod 12 moves upward relative to the cylinder 11, the pump body 15 injects the buffer into the first chamber 111, the second damping adjustment valve 1321 is adjusted to a softest state (ensures that the buffer can rapidly enter the first chamber 111), and when the piston rod 12 reaches a specified height, the pump body 15 stops operating.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the description of the utility model, a "first feature" or "second feature" may include one or more of such features.

In the description of the present utility model, "plurality" means two or more.

In the description of the utility model, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by another feature therebetween.

In the description of the utility model, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims

1. A shock absorber assembly, comprising:

a cylinder (11), wherein a damping cavity is formed in the cylinder (11);

A piston rod (12), the piston rod (12) being connected to the vehicle body and being provided with a piston moving in the damping chamber, the piston dividing the damping chamber into a first chamber (111) and a second chamber (112);

An oil guide channel (13), said oil guide channel (13) being in communication with said first and second chambers (111, 112) respectively and being adapted to circulate a buffer solution;

-an accumulator (14), said accumulator (14) being deformably arranged in said first (111) and/or second (112) cavity, said accumulator (14) being adapted to deform according to the pressure in said damping cavity.

2. The shock absorber assembly as claimed in claim 1, wherein said accumulator (14) is disposed around at least a portion of the outer circumference of said piston rod (12).

3. The shock absorber assembly as set forth in claim 2, wherein the accumulator (14) includes:

A base portion (141), the base portion (141) being fixed to the piston rod (12);

The deformation part is connected with the base body part (141), is deformably arranged in the second cavity (112), and is suitable for deformation according to the pressure in the vibration reduction cavity.

4. A shock absorber assembly as claimed in claim 3, wherein the deformation is configured as an axially deformable bellows (142) disposed around the piston rod (12) and within the piston rod (12), the bellows (142) having a cavity formed therein.

5. The shock absorber assembly as set forth in claim 4 wherein said accumulator (14) further comprises an inflator (143), said inflator (143) being disposed within said base portion (141), said inflator (143) being provided with an inflation port in communication with said bellows (142), said inflator (143) selectively injecting air into a cavity of said bellows (142).

6. The shock absorber assembly as set forth in claim 4 wherein said accumulator (14) further comprises a base plate (144), said base plate (144) surrounding said piston rod (12) and being connected to an end of said bellows (142).

7. The shock absorber assembly as set forth in claim 4 wherein said accumulator (14) further comprises a spacer (145), said spacer (145) being disposed at an end of said piston facing said bellows (142) and spaced from said bellows (142).

8. The shock absorber assembly as set forth in claim 1 further comprising a pump body (15), said pump body (15) being disposed within said oil guide channel (13), said pump body (15) being adapted to drive a flow of buffer between said first and second chambers (111, 112) to drive said piston rod (12) to move relative to said cylinder (11).

9. A shock absorber assembly as claimed in claim 8, wherein the oil guide channel (13) comprises:

A first oil path (131), wherein a first damping adjusting valve (1311) is arranged on the first oil path (131), and the first oil path (131) is used for communicating the first cavity (111) with the second cavity (112) and is suitable for guiding buffer solution of the first cavity (111) into the second cavity (112);

A second oil passage (132), a second damping adjustment valve (1321) is arranged on the second oil passage (132), the second oil passage (132) is used for communicating the second cavity (112) with the first cavity (111) and is suitable for guiding buffer solution of the second cavity (112) into the first cavity (111), wherein

The first oil passage (131) and the second oil passage (132) are respectively communicated with the pump body (15).

10. A vehicle comprising a shock absorber assembly as claimed in any one of claims 1 to 9.