Base, shock absorber assembly, suspension system and vehicle

Abstract

The application relates to a base, a shock absorber assembly, a suspension system and a vehicle. The base is used for cooperation with a piston and comprises a piston interface and a first communication pipeline. The piston interface comprises a first inlet and outlet and a second inlet and outlet. The first inlet and outlet are used for communication with a first chamber of the piston. The second inlet and outlet are used for communication with a second chamber of the piston. The first communication pipeline is connected with the first inlet and outlet and the second inlet and outlet at two ends. The first communication pipeline is provided with a first control interface and a damping interface. The first control interface is used for connection with a first electromagnetic valve for controlling the opening and closing of the first communication pipeline. The damping interface is used for connection with a damping valve for controlling the fluid flow damping of the first communication pipeline. The piston interface and the first control interface are located on different surfaces. The piston interface and the damping interface are located on different surfaces. The base is integrated with the piston interface, the first control interface and the damping interface, so that the shock absorber assembly can be connected with the first electromagnetic valve and the damping valve, and the functional integration of the shock absorber assembly is improved.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more particularly to a base, shock absorber assembly, suspension system, and vehicle. Background Technology

[0002] With the rapid development of the automotive industry, people have placed higher demands on vehicle handling, comfort, safety, ease of use, and intelligence. In order to allow more space in vehicles to accommodate components such as batteries and functional parts, thereby achieving better range and richer functionality, vehicle manufacturers are seeking a balance between improving the functional integration of vehicle components and optimizing their size.

[0003] The suspension system provides support and damping for the vehicle body. The performance of the suspension system significantly impacts passenger comfort. Improving the damping performance of the suspension system while optimizing its size is a research direction in the automotive field. Summary of the Invention

[0004] This application provides a base, shock absorber assembly, suspension system, and vehicle to address some or all of the shortcomings in the related art.

[0005] The first aspect of this application provides a base for cooperating with a piston, comprising:

[0006] The piston interface includes a first inlet and a second inlet and a third inlet, wherein the first inlet and the second inlet are used to communicate with a first chamber of the piston; and the second inlet and the third inlet are used to communicate with a second chamber of the piston.

[0007] A first connecting pipeline is connected to the first inlet and the second inlet and the second outlet at its two ends, respectively. The first connecting pipeline is provided with a first control interface and a damping interface. The first control interface is used to connect to a first solenoid valve that controls the on / off state of the first connecting pipeline. The damping interface is used to connect to a damping valve that controls the flow damping of fluid in the first connecting pipeline.

[0008] The piston interface and the first control interface are located on different surfaces; the piston interface and the damping interface are located on different surfaces.

[0009] Furthermore, the base also includes:

[0010] The second connecting pipe is connected to the first inlet and the second inlet and the second outlet at its two ends, respectively; the second connecting pipe is provided with a drive interface; the drive interface is used to connect to a drive device to drive the fluid flow in the second connecting pipe.

[0011] Furthermore, the second connecting pipeline also includes a second control interface; the second control interface is used to connect to a second solenoid valve that controls the on / off state of the second connecting pipeline.

[0012] Furthermore, the second control interface and the first control interface are located on the same surface of the base.

[0013] Furthermore, the number of damping interfaces is two; the two damping interfaces are disposed on opposite sides of the base; and / or,

[0014] The number of the first control interfaces is two, and the two first control interfaces are located on the same surface of the base.

[0015] Furthermore, the first inlet / outlet is configured as an oblong hole, and the center of the first inlet / outlet coincides with the center of the second inlet / outlet.

[0016] A second aspect of this application provides a shock absorber assembly, including a piston, a first solenoid valve, a damping valve, and a base as described in the foregoing embodiments; the first chamber of the piston is connected to the first inlet / outlet; the second chamber of the piston is connected to the second inlet / outlet; the solenoid valve includes a first solenoid valve for controlling the opening and closing of the first connecting pipe; the first solenoid valve is connected to the first control interface; the damping valve is connected to the damping interface.

[0017] Furthermore, the number of damping interfaces and damping valves are both two; each damping valve includes a throttling valve body and a one-way valve body; the two damping valves are connected in series and the permissible flow directions of the two one-way valve bodies are opposite; and / or,

[0018] The shock absorber assembly further includes an accumulator communicating with the first chamber; the accumulator is used to store fluid in the shock absorber assembly; and / or,

[0019] The piston includes a piston rod and a piston head disposed at one end of the piston rod; the piston head includes a fluid hole extending through the piston head along the moving direction of the piston rod; the piston rod includes a one-way switch disposed in the first chamber; the one-way switch covers the fluid hole on one side of the first chamber and is configured to allow fluid to enter the first chamber from the second chamber via the fluid hole.

[0020] A third aspect of this application provides a suspension system including the shock absorber assembly described in the foregoing embodiments.

[0021] A fourth aspect of this application provides a vehicle including the suspension system described in the foregoing embodiments.

[0022] The technical solutions provided by the embodiments of this application may include the following beneficial effects:

[0023] As can be seen from the above embodiments, the base of this application integrates a piston interface, a first control interface, and a damping interface, enabling the shock absorber assembly to connect to a first solenoid valve and a damping valve, which is beneficial to improving the functional integration of the shock absorber assembly. Simultaneously, the piston interface, the first control interface, and the damping interface are located on different surfaces, thus the base allows the first solenoid valve and the damping valve to be positioned below the piston. In this way, when the first solenoid valve and the damping valve are assembled on the base, they not only do not obstruct the vertical movement of the piston rod, but also fully utilize the longitudinal space of the shock absorber assembly.

[0024] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this application. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 The diagram shows an overall schematic representation of one embodiment of the shock absorber assembly of this application;

[0027] Figure 2 The diagram shows an overall schematic representation of one embodiment of the base of this application;

[0028] Figure 3 The diagram shows a simplified schematic of one embodiment of the fluid passage of the shock absorber assembly of this application; wherein the shock absorber assembly is in a restoring damping force state;

[0029] Figure 4 Shown as Figure 3 The diagram shows the fluid passage of the shock absorber assembly under compressive damping force.

[0030] Figure 5 Shown as Figure 3 The diagram shows the fluid passage of the shock absorber assembly in an active lifting state.

[0031] Figure 6 Shown as Figure 3 The diagram shows the fluid passage of the shock absorber assembly in an active compression state.

[0032] Figure 7 The diagram shows a partial cross-sectional view at the piston position of one embodiment of the shock absorber assembly of this application.

[0033] Explanation of reference numerals in the attached figures:

[0034] 100 Shock absorber assembly, 1 piston, 11 first chamber, 12 second chamber, 13 piston rod, 131 limiting component, 132 piston head, 1321 fluid orifice, 133 one-way switch, 14 side chamber, 15 flow hole; 2 solenoid valve, 21 first solenoid valve, 22 second solenoid valve, 3 damping valve, 31 throttle valve body, 32 one-way valve body, 4 base, 41 piston interface, 411 first inlet / outlet, 412 second inlet / outlet, 42 first connecting pipe, 421 first control interface, 422 damping interface, 43 second connecting pipe, 431 second control interface, 5 filling conversion component, 6 shock absorber bushing, 7 accumulator, 8 controller, 9 drive equipment. Detailed Implementation

[0035] The technical solutions in the embodiments (or "implementations") of this application will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0036] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movements between components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0037] refer to Figures 1 to 3 This application provides a shock absorber assembly 100. The shock absorber assembly 100 includes a piston 1, a solenoid valve 2, a damping valve 3, and a base 4. The base 4 is used for mating and connecting with the piston 1, and includes a piston interface 41 and a first connecting pipe 42. Figure 3 and Figure 4(As shown by the red line). Piston interface 41 includes a first inlet / outlet 411 and a second inlet / outlet 412. The first inlet / outlet 411 communicates with the first chamber 11 of piston 1. The second inlet / outlet 412 communicates with the second chamber 12 of piston 1. Solenoid valve 2 includes a first solenoid valve 21 that controls the opening and closing of the first connecting pipe 42. The first connecting pipe 42 is connected to the first inlet / outlet 411 and the second inlet / outlet 412 at its two ends, respectively. The first connecting pipe 42 is provided with a first control interface 421 and a damping interface 422. The first control interface 421 is connected to the first solenoid valve 21. The damping interface 422 is connected to a damping valve 3 that controls the damping of fluid flow in the first connecting pipe 42. Piston interface 41 and the first control interface 421 are located on different surfaces. Piston interface 41 and the damping interface 422 are located on different surfaces.

[0038] The base 4 of this application integrates a piston interface 41, a first control interface 421, and a damping interface 422, enabling the shock absorber assembly 100 to connect to the first solenoid valve 21 and the damping valve 3, thereby improving the functional integration of the shock absorber assembly 100. Simultaneously, the piston interface 41, the first control interface 421, and the damping interface 422 are located on different surfaces; therefore, the base 4 allows the first solenoid valve 21 and the damping valve 3 to be connected as follows: Figure 1 The base 4 is positioned below the piston 1. Thus, when the first solenoid valve 21 and the damping valve 3 are assembled on the base 4, they not only do not obstruct the vertical movement of the piston rod 13 of the piston 1, but also fully utilize the longitudinal space of the shock absorber assembly 100. Therefore, the base 4 of this application is beneficial for optimizing the space of the shock absorber assembly 100 in the direction of piston rod 13 movement.

[0039] By assembling the solenoid valve 2 and the damping valve 3 onto the base 4 of this application, the shock absorber assembly 100 can select the flow or blockage of the first connecting pipe 42 and the flow damping of the first connecting pipe 42 according to the working conditions, making it more intelligent and user-friendly. At the same time, the base 4, which integrates the first control interface 421, the damping interface 422, and the piston interface 41, eliminates the need for the shock absorber assembly 100 to separately locate installation positions for the solenoid valve 2, piston 1, and damping valve 3 and then connect them via subsequent pipelines. This improves the structural simplicity of the shock absorber assembly 100, thereby facilitating later connection and maintenance.

[0040] refer to Figure 3 When the shock absorber assembly 100 recovers its damping force, the piston rod 13 moves upward. At this time, the controller 8 can control the first solenoid valve 21 to open, allowing fluid to flow from the first chamber 11 into the first connecting pipe 42 through the first inlet / outlet 411, and then into the second chamber 12 through the second inlet / outlet 412. The controller 8 can control the speed at which the fluid flows through the damping valve 3 by controlling the damping force of the damping valve 3, thereby controlling the upward movement speed of the piston rod 13.

[0041] refer to Figure 4 When the shock absorber assembly compresses and dampes at 100%, the piston rod 13 moves downward. At this time, the controller 8 can control the first solenoid valve 21 to open, thereby allowing fluid to flow from the second chamber 12 into the first connecting pipe 42 through the second inlet / outlet 412, and then into the first chamber 11 through the first inlet / outlet 411. The controller 8 can then control the damping force of the damping valve 3 to control the speed at which the fluid flows through the damping valve 3, thereby controlling the speed at which the piston rod 13 is pressed down.

[0042] When the shock absorber assembly 100 wants the piston rod 13 to remain in a certain position without moving up or down, the controller 8 can control the first solenoid valve 21 to close, at which time the fluid in the first connecting pipe 42 does not move.

[0043] It should be noted that the piston interface 41 and the first control interface 421 are located on different surfaces, and the piston interface 41 and the damping interface 422 are located on different surfaces. This can be understood as the piston interface 41, the first control interface 421, and the damping interface 422 being located on different surfaces. Alternatively, in other embodiments, when the base 4 is, for example, a cylinder, the first control interface 421 and the damping interface 422 may be located on the same surface, i.e., on the arc surface of the cylinder, while the piston interface 41 is located on the plane of the cylinder and is not on the same surface as the first control interface 421 and the damping interface 422. This application is not limited in this respect.

[0044] In some embodiments, the number of damping valves 3 is two, and the number of damping ports 422 is also two. In this embodiment, the damping valve 3 includes a throttling valve body 31 and a one-way valve body 32, and the two one-way valve bodies 32 have opposite allowable flow directions.

[0045] like Figure 3 As shown in the attached diagram, the upper damping valve 3's one-way valve body 32 does not allow fluid to pass through; therefore, fluid flows through the damping valve 3 via the throttle valve body 31. Conversely, the lower damping valve 3's one-way valve body 32 allows fluid to pass through; therefore, fluid flows through the one-way valve body 32 through the damping valve 3. Figure 4 As shown in the attached figure, the one-way valve body 32 of the lower damping valve 3 does not allow fluid to pass through, so the fluid flows through the throttle valve body 31 and then through the damping valve 3. The one-way valve body 32 of the upper damping valve 3 allows fluid to pass through, so the fluid passes through the one-way valve body 32 and then through the damping valve 3.

[0046] The arrangement of the two damping valves 3 in this embodiment, along with the throttling valve body 31 and the one-way valve body 32 of the damping valves 3, allows the two damping valves 3 to be connected in series, thereby adjusting the fluid damping in two directions within the same circuit, which is beneficial for improving the adjustment response speed of the controller 8. Compared to the embodiment with bidirectional damping valves, the arrangement of the damping valves 3 in this embodiment is simpler, which helps to reduce the overall cost of the shock absorber assembly 100.

[0047] It should be noted that the upper damping valve 3 and the lower damping valve 3 described above only correspond to... Figure 3 and Figure 4 The orientation shown in the diagram does not represent the actual orientation of the two damping valves 3 in the shock absorber assembly 100.

[0048] like Figure 2 As shown, in an embodiment with two damping interfaces 422, the two damping interfaces 422 are disposed on opposite sides of the base 4. In other words, the two damping interfaces 422 extend in a 180-degree direction. Since the damping valve 3 is typically large, distributing the damping interfaces 422 on opposite sides minimizes interference between the two damping valves 3. Furthermore, using the base 4 of this application ensures that even when a larger damping valve 3 is selected, interference is not a concern with the shock absorber assembly 100.

[0049] Admittedly, in other embodiments, the two damping interfaces 422 may also be arranged adjacently, and in order to avoid interference, the included angle between their extension directions may be, for example, 100 degrees, 120 degrees, etc. This application does not limit this.

[0050] Back Figure 3 and Figure 4 The number of first solenoid valves 21 is generally sufficient to open and close the first connecting pipe 42. However, in some embodiments, the number of first solenoid valves 21 in the first connecting pipe 42 may include two. The two first solenoid valves 21 are respectively located near the first inlet / outlet 411 and the second inlet / outlet 412. When the shock absorber assembly 100 needs to keep the piston rod 13 in the same position, the controller 8 controls the two first solenoid valves 21 to close. In this way, the two first solenoid valves 21 can minimize the continued flow of fluid in the first chamber 11 and the second chamber 12 due to inertia, thereby preventing damage to the damping valve 3. It is also understood that the arrangement of two first solenoid valves 21 ensures that even if one of the first solenoid valves 21 in the first connecting pipe 42 of the shock absorber assembly 100 fails and cannot close properly, that is, if one of the first solenoid valves 21 fails and cannot block the passage, the shock absorber assembly 100 can still operate normally.

[0051] In an embodiment where there are two first solenoid valves 21, there are also two first control interfaces 421. Wherein, as... Figure 2 As shown, the two first control interfaces 421 are located on the same surface of the base 4. Since the interface required for the first solenoid valve 21 to connect to the base 4 is small, placing the first interfaces on the same surface of the base 4 can improve the space utilization of the base 4 and facilitate the wiring by the assembly personnel when assembling the shock absorber assembly 100 into the suspension system.

[0052] refer to Figure 5 and Figure 6 In some embodiments, the base 4 further includes a second connecting conduit 43. Figure 5 and Figure 6 (As shown by the green line). The two ends of the second connecting pipe 43 are connected to the first inlet / outlet 411 and the second inlet / outlet 412, respectively. The second connecting pipe 43 is provided with a drive interface (not shown). The drive interface is used to connect to the drive device 9 to drive the fluid flow in the second connecting pipe 43. Figure 5 For example, when the drive device 9 operates, the fluid in the second connecting pipe 43 tends to flow from the first chamber 11 to the second chamber 12, thereby increasing the fluid volume in the second chamber 12 and pushing the piston rod 13 upward. In this way, the shock absorber assembly 100 achieves an active lifting effect, realizing an active restoring damping effect. Figure 6 In the illustrated embodiment, the operation of the drive device 9 causes the fluid in the second connecting pipe 43 to tend to flow from the second chamber 12 to the first chamber 11, thereby increasing the fluid volume in the first chamber 11 and pushing the piston rod 13 downward. Thus, the shock absorber assembly 100 achieves an active compression effect, realizing active compression damping.

[0053] By providing a second connecting pipe 43, the base 4 allows the shock absorber assembly 100 to connect to the drive device 9 to achieve active lifting and active compression effects, enabling the shock absorber assembly 100 to meet the requirements of damping and support under more diverse operating conditions. The base 4 further integrates the drive interface, further improving the structural compactness of the shock absorber assembly 100, which is beneficial for optimizing space and improving functional integration. The shock absorber assembly 100 equipped with the base 4 of this application can achieve passive recovery damping, passive compression damping, active recovery damping, and active compression damping, thus meeting more diverse operating conditions and improving the intelligence of the shock absorber assembly 100.

[0054] The drive device 9 can be directly connected to the drive interface via a conduit. In an optional embodiment, such as... Figure 1As shown, the shock absorber assembly 100 also includes a filling adapter 5 connected to the drive interface. The filling adapter 5 serves as a connector between the base 4 and the drive device 9. Simultaneously, the filling adapter 5 is provided with a fluid filling port, allowing maintenance personnel to add fluid to the shock absorber assembly 100 through the fluid filling port. It is evident that, by providing the base 4, the shock absorber assembly 100 of this embodiment can achieve the connection of the solenoid valve 2, the damping valve 3, the drive device 9, and the fluid filling, further increasing the number of functions that the base 4 can provide, which is beneficial for realizing the functional integration of the shock absorber assembly 100.

[0055] exist Figure 1 In the illustrated embodiment, the base 4 is configured as a hexahedron. The upper surface of the base 4 is connected to the piston 1, and the lower surface of the base 4 is used to connect the shock absorber bushing 6 for subsequent assembly. The base 4 includes four side surfaces, wherein each of two side surfaces is connected to a damping valve 3, one side surface is connected to multiple solenoid valves 2, and one side surface is connected to a filling conversion element 5. It can be seen that... Figure 1 The base 4 in the illustrated embodiment makes full use of every surface of the base 4, providing a basis for the functional integration of the shock absorber assembly 100 and helping to reduce the volume of the shock absorber assembly 100. However, in other embodiments, the base 4 can also be configured as, for example, a cylinder, a prism, etc.

[0056] The drive device 9 can be a structure such as a hydraulic pump. When the shock absorber assembly 100 does not require the second connecting pipe 43, the drive device 9 may not operate, in which case fluid is unlikely to push the drive device 9 to flow. In some optional embodiments, the solenoid valve 2 includes a second solenoid valve 22 that controls the opening and closing of the second connecting pipe 43. The second connecting pipe 43 also includes a second control interface 431. The second control interface 431 is used to connect to the second solenoid valve 22. Figure 3 As shown, a second solenoid valve 22 is also provided in the second connecting pipe 43. The second solenoid valve 22 is controlled by the controller 8. The controller 8 can further control whether fluid can flow into the second connecting pipe 43 by controlling the opening and closing of the second solenoid valve 22. By providing the second solenoid valve 22 in the second connecting pipe 43, the shock absorber assembly 100 can avoid the continuous fluid pressure on the drive device 9, which could cause the drive device 9 to malfunction or be damaged. Compared with the drive device 9, the second solenoid valve 22 is easier and cheaper to replace. Therefore, the provision of the second solenoid valve 22 is beneficial to the protection of the drive device 9.

[0057] Fluid can flow into the drive device 9 from the end near the first inlet / outlet 411, and also from the end near the second inlet / outlet 412. In some optional embodiments, the base 4 includes two second control interfaces 431, and the second connecting pipe 43 is arranged such that two second solenoid valves 22 connected to the second control interfaces 431 are located at the two inlets / outlets of the drive device 9, respectively. Thus, the base 4 can provide protection for the drive device 9 at both ends. It is readily understood that in embodiments with two second control interfaces 431, the number of second solenoid valves 22 in the second connecting pipe 43 is also correspondingly set to two.

[0058] Furthermore, in an embodiment where the second connecting pipe 43 includes a second control interface 431, the first control interface 421 and the second control interface 431 are located on the same surface of the base 4, such as... Figure 2 As shown. As mentioned above, the solenoid valve 2 is typically small in size, thus allowing the first control interface 421 and the second control interface 431 to be located on the same surface, improving the structural compactness of the base 4, and facilitating the connection of the first solenoid valve 21 and the second solenoid valve 22 by the assembler when assembling the shock absorber assembly 100.

[0059] However, in fact, the first control interface 421 and the second control interface 431 can also be located on different surfaces, which to some extent facilitates the assembly personnel to identify the first control interface 421 and the second control interface 431.

[0060] It should be noted that, Figure 2 In the illustrated embodiment, the two first control interfaces 421 are located above the two second control interfaces 431, but this should be considered exemplary and not limiting. The relative positional relationship between the first control interfaces 421 and the second control interfaces 431 can be adaptively modified according to the internal flow channel orientation of the base 4. This application is not limiting in this regard.

[0061] The first inlet / outlet 411 can be directly connected to the first chamber 11 via a pipeline. In some embodiments, such as Figure 7 As shown, piston 1 includes a side chamber 14. The side chamber 14 is disposed around the first chamber 11 and the second chamber 12, and is directly connected to the first chamber 11 through a flow hole 15. When piston 1 is assembled on base 4, the first inlet / outlet 411 is directly connected to the side chamber 14, and the second inlet / outlet 412 is directly connected to the second chamber 12. Fluid entering piston 1 from the first inlet / outlet 411 first enters the side chamber 14, then rises to the position of the flow hole 15 and flows into the first chamber 11. Conversely, fluid in the first chamber 11 can enter the side chamber 14 through the flow hole 15, and then enter the first connecting pipe 42 through the first inlet / outlet 411.

[0062] With this configuration, the first chamber 11 and the second chamber 12 of the piston 1 can be fluidly connected through the first inlet 411 and the second inlet 412 without the need for additional interfaces to connect pipes, which helps to reduce the complexity of the structure and optimize the overall volume of the shock absorber assembly 100.

[0063] like Figure 2 As shown, in this embodiment, the first inlet / outlet 411 is configured as an oblong hole, and the center of the first inlet / outlet 411 coincides with the center of the second inlet / outlet 412. When the second inlet / outlet 412 is a circular hole, the center of the first inlet / outlet 411 coincides with the center of the second inlet / outlet 412. When the second inlet / outlet 412 is, for example, a square hole, the center of the first inlet / outlet 411 and the intersection of the diagonals of the second inlet / outlet 412 coincide. With this configuration, the flow area of ​​the first inlet / outlet 411 is larger, thereby improving the efficiency of fluid entering or leaving the side chamber 14. Furthermore, compared to an annular hole, the oblong hole can avoid the first inlet / outlet 411 having too much impact on the structural strength of the base 4.

[0064] In some embodiments, the number of first inlet / outlet 411 can be multiple, thereby allowing the connection positions of the first inlet / outlet 411 and the side chamber 14 to be reasonably set according to the routing of the first connecting pipe 42 and the second connecting pipe 43. Furthermore, the multiple first inlet / outlet 411 can have the same shape, for example, all being oblong or round holes. Alternatively, the shapes of the first inlet / outlet 411 can be different, such as... Figure 2 As shown, this allows for the reasonable allocation of fluid flow area based on the different flow rates of the first inlet and outlet 411.

[0065] refer to Figure 1 In an optional embodiment, the shock absorber assembly 100 further includes an accumulator 7 communicating with the first chamber 11. The accumulator 7 stores fluid in the shock absorber assembly 100. When the piston rod 13 moves upward, the fluid in the first chamber 11 moves to the second chamber 12, i.e., the second chamber 12 is in a state requiring fluid replenishment. At this time, the fluid in the accumulator 7 leaves the accumulator 7, thereby satisfying the fluid replenishment requirement of the second chamber 12, such as... Figure 3 and Figure 5 As shown in the diagram, when piston rod 13 moves downward, the fluid in the second chamber 12 moves towards the first chamber 11, meaning the fluid in the second chamber 12 needs to find space to store. At this time, the fluid flows into the first chamber 11 and the accumulator 7, thus satisfying the fluid's needs, such as... Figure 4 and Figure 6 The state shown.

[0066] By setting up the accumulator 7, the shock absorber assembly 100 can always maintain a state of excess fluid, so that the piston rod 13 can move fully to the required position, ensuring the support and shock absorption effect of the shock absorber assembly 100.

[0067] In embodiments where the piston 1 includes a side chamber 14, the accumulator 7 can be disposed on the side wall of the piston 1 and communicate with the first chamber 11 through the side chamber 14, such as... Figure 1 and Figure 7 As shown. In Figure 1 In the illustrated embodiment, the outer side of the accumulator 7 includes multiple uneven structures. These uneven structures increase the outer surface area of ​​the accumulator 7, thereby enabling rapid heat dissipation when the fluid inside the accumulator 7 increases or decreases, which helps maintain the fluid temperature inside the shock absorber assembly 100 at a suitable level.

[0068] also, Figure 7 In the illustrated embodiment, the piston rod 13 is provided with a movable adjustable stop 131. By adjusting the position of the stop 131, the travel of the piston rod 13 can be adjusted. Thus, the shock absorber assembly 100 can be customized according to operating conditions.

[0069] In an optional embodiment, the piston 1 includes a piston head 132 disposed at one end of the piston rod 13. The piston head 132 includes a fluid orifice 1321 extending through the piston head 132 along the direction of movement of the piston rod 13. The piston rod 13 also includes a one-way switch 133 disposed in the first chamber 11. The one-way switch 133 covers the fluid orifice 1321 on one side of the first chamber 11. The one-way switch 133 is configured to allow fluid from the second chamber 12 to enter the first chamber 11 through the fluid orifice 1321, but not to allow fluid from the first chamber 11 to enter the fluid orifice 1321. With this configuration, when the shock absorber assembly 100 is subjected to force causing the piston rod 13 to move rapidly toward the second chamber 12, the fluid in the second chamber 12 applies a certain pressure to the one-way switch 133. When the pressure exceeds the threshold of the one-way switch 133, it can be determined that the force on the shock absorber assembly 100 is relatively large. Therefore, the one-way switch 133 opens, allowing the fluid in the second chamber 12 to rapidly flow into the first chamber 11, assisting the piston rod 13 to move downwards. With this configuration, the fluid in the second chamber 12 can flow from inside the piston 1 to the first chamber 11, thereby preventing damage to the solenoid valve 2, damping valve 3, and piston rod 13 due to excessive fluid pressure in the first connecting pipe 42 and the second connecting pipe 43 under extreme conditions. Those skilled in the art can select different materials for the one-way switch 133, its thickness along the moving direction of the piston rod 13, etc., according to the desired pressure threshold of the one-way switch 133, thereby changing the stiffness of the one-way switch 133.

[0070] Based on the above embodiments, this application also provides a suspension system, including the shock absorber assembly 100 described in the foregoing embodiments. The suspension system equipped with the shock absorber assembly 100 of this application can meet the support and cushioning requirements under various working conditions, making it more intelligent and user-friendly. Furthermore, the integrated design of the base 4 into the shock absorber assembly 100 helps optimize the size of the suspension system.

[0071] This application also provides a vehicle including the suspension system described in the foregoing embodiments. By configuring the suspension system of this application, the vehicle can select the flow or blockage of the first connecting pipe 42 and the flow damping of the first connecting pipe 42 under different operating conditions, thereby providing passengers with a more humanized and intelligent shock absorption effect, which is conducive to improving the ride comfort of the vehicle.

[0072] It should be noted that the technical solutions or features described in the above embodiments can be combined or complemented by each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A base for cooperation with a piston (1), characterized in that The base (4) comprises: A piston interface (41) comprising a first inlet and outlet (411) for communicating with the first chamber (11) of the piston (1) and a second inlet and outlet (412) for communicating with the second chamber (12) of the piston (1); A first communication pipeline (42) having two ends connected to the first inlet and outlet (411) and the second inlet and outlet (412) respectively, the first communication pipeline (42) being provided with a first control interface (421) and a damping interface (422), the first control interface (421) being used for connecting with a first electromagnetic valve (21) for controlling the on-off of the first communication pipeline (42), and the damping interface (422) being used for connecting with a damping valve (3) for controlling the fluid flow damping of the first communication pipeline (42); Wherein, the piston interface (41) and the first control interface (421) are located on different surfaces, and the piston interface (41) and the damping interface (422) are located on different surfaces.

2. The base of claim 1, wherein, The base (4) further comprises: A second communication pipeline (43) having two ends connected to the first inlet and outlet (411) and the second inlet and outlet (412) respectively, the second communication pipeline (43) being provided with a driving interface, and the driving interface being used for connecting with a driving device (9) to drive the fluid flow in the second communication pipeline (43).

3. The base of claim 2, wherein, The second communication pipeline (43) further comprises a second control interface (431), and the second control interface (431) is used for connecting with a second electromagnetic valve (22) for controlling the on-off of the second communication pipeline (43).

4. The base of claim 3, wherein, The second control interface (431) and the first control interface (421) are located on the same surface of the base (4).

5. The base of claim 1, wherein, The number of the damping interfaces (422) is two, and the two damping interfaces (422) are arranged on opposite sides of the base (4); and / or, The number of the first control interfaces (421) is two, and the two first control interfaces (421) are located on the same surface of the base (4).

6. The base of any one of claims 1-5, wherein, The first inlet and outlet (411) is arranged as a waist-shaped hole, and the center of the first inlet and outlet (411) coincides with the center of the second inlet and outlet (412).

7. A shock absorber assembly characterized by, The piston (1), the electromagnetic valve (2), the damping valve (3), and the base (4) according to any one of claims 1-6 are comprised; the first chamber (11) of the piston (1) communicates with the first inlet and outlet (411), the second chamber (12) of the piston (1) communicates with the second inlet and outlet (412), the electromagnetic valve (2) comprises a first electromagnetic valve (21) for controlling the on-off of the first communication pipeline (42), the first electromagnetic valve (21) is connected to the first control interface (421), and the damping valve (3) is connected to the damping interface (422).

8. The shock absorber assembly of claim 7, wherein The number of the damping interfaces (422) and the damping valves (3) are two respectively; the damping valve (3) comprises a throttle valve body (31) and a one-way valve body (32); two damping valves (3) are connected in series and the two one-way valve bodies (32) have opposite flow directions; and / or, The shock absorber assembly (100) further comprises an accumulator (7) in communication with the first chamber (11); the accumulator (7) is used to store fluid in the shock absorber assembly (100); and / or, The piston (1) comprises a piston rod (13) and a piston head (132) arranged at one end of the piston rod (13); the piston head (132) comprises a fluid hole (1321) penetrating the piston head (132) along the moving direction of the piston rod (13); the piston rod (13) comprises a one-way switch (133) arranged at the first chamber (11); the one-way switch (133) covers the fluid hole (1321) on one side of the first chamber (11) and is arranged to allow fluid to enter the first chamber (11) from the second chamber (12) through the fluid hole (1321).

9. A suspension system characterized by, The shock absorber assembly (100) as claimed in any one of claims 7-8.

10. A vehicle characterized by comprising: The suspension system as claimed in claim 9.

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