Base, shock absorber assembly, suspension system and vehicle

Abstract

The invention relates to a base, a shock absorber assembly, a suspension system and a vehicle. The base is used for being matched with a piston and comprises a piston connector and a first communicating pipeline. The piston interface includes a first inlet and outlet and a second inlet and outlet. The first inlet and outlet is used for communicating with the first cavity of the piston. The two ends of the first communicating pipeline are connected with the first in-out opening and the second in-out opening correspondingly. The first communicating pipeline is provided with a first control connector and a damping connector. And the first control interface is used for being connected with a first electromagnetic valve for controlling on-off of the first communicating pipeline. The damping interface is used for being connected with a damping valve for controlling fluid flow damping of the first communicating pipeline. The piston connector and the first control connector are located on different surfaces. The piston interface and the damping interface are located on different surfaces. The base is integrated with the piston connector, the first control connector and the damping connector, so that the shock absorber assembly can be connected with the first electromagnetic valve and the damping valve, and the function integration level of the shock absorber assembly can be improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a base, a shock absorber assembly, a suspension system and a vehicle. Background Art

[0002] With the rapid development of the vehicle industry, people have put forward higher requirements for vehicle controllability, comfort, safety, convenience and intelligence. In order to allow vehicles to have more space for batteries, functional components, etc. to achieve better endurance and richer usage functions, vehicle manufacturers are seeking to improve the functional integration of vehicle components and optimize the balance between volume.

[0003] The suspension system supports and absorbs shocks on the vehicle body. The performance of the suspension system has a significant impact on the riding experience of passengers. How to improve the shock absorption performance of the suspension system while optimizing the volume of the suspension system is also a research direction in the vehicle field. Summary of the invention

[0004] The present application provides a base, a shock absorber assembly, a suspension system and a vehicle to solve some or all of the deficiencies in the related art.

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

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

[0007] a first connecting pipeline, with two ends respectively connected to the first inlet and outlet and the second inlet and outlet; 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 of the first connecting pipeline; the damping interface is used to connect to a damping valve that controls the flow damping of the fluid in the first connecting pipeline;

[0008] Wherein, 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 further comprises:

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

[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 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] Further, the number of the damping interfaces is two; the two damping interfaces are arranged 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 and outlet are configured as waist-shaped holes, and the center of the first inlet and outlet coincides with the center of the second inlet and outlet.

[0016] The second aspect of the present application provides a shock absorber assembly, including a piston, a first solenoid valve, a damping valve and the base described in the aforementioned embodiment; the first chamber of the piston is connected to the first inlet and outlet; the second chamber of the piston is connected to the second inlet and outlet; the solenoid valve includes a first solenoid valve that controls the on-off of the first connecting pipeline; the first solenoid valve is connected to the first control interface; and the damping valve is connected to the damping interface.

[0017] Further, the number of the damping interface and the number of the damping valve are two respectively; the damping valve comprises a throttle valve body and a one-way valve body; the two damping valves are connected in series and the allowed flow directions of the two one-way valve bodies are opposite; and / or,

[0018] The shock absorber assembly further comprises an accumulator in communication 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 arranged at one end of the piston rod; the piston head includes a fluid hole that penetrates the piston head along the moving direction of the piston rod; the piston rod includes a one-way switch arranged 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 through the fluid hole.

[0020] A third aspect of the present application provides a suspension system, comprising the shock absorber assembly described in the aforementioned embodiment.

[0021] A fourth aspect of the present application provides a vehicle, comprising the suspension system described in the aforementioned embodiment.

[0022] The technical solution provided by the embodiments of the present application may have the following beneficial effects:

[0023] It can be seen from the above embodiments that the base of the present application is integrated with a piston interface, a first control interface and a damping interface, so that the shock absorber assembly can be connected to the first solenoid valve and the damping valve, which is conducive to improving the functional integration of the shock absorber assembly. At the same time, the piston interface and the first control interface and the damping interface are located on different surfaces, so the base allows the first solenoid valve and the damping valve to be set below the piston. In this way, when the first solenoid valve and the damping valve are assembled on the base, not only will they not hinder the up and down movement of the piston rod of the piston, but they can also make full use of the longitudinal space of the shock absorber assembly.

[0024] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 Shown is an overall schematic diagram of an embodiment of a shock absorber assembly of the present application;

[0027] Figure 2 An overall schematic diagram of an embodiment of a base of the present application is shown;

[0028] Figure 3 A simplified schematic diagram of an embodiment of a fluid path of a shock absorber assembly of the present application is shown; wherein the shock absorber assembly is in a restoring damping force state;

[0029] Figure 4 Shown as Figure 3 A schematic diagram of the fluid path of the shock absorber assembly shown in a compression damping force state;

[0030] Figure 5 Shown as Figure 3 A schematic diagram of the fluid passage of the shock absorber assembly shown in the active lifting state;

[0031] Figure 6 Shown as Figure 3 A schematic diagram of the fluid passage of the shock absorber assembly shown in an active compression state;

[0032] Figure 7 A partial cross-sectional schematic diagram showing an embodiment of a shock absorber assembly of the present application at the piston position is shown.

[0033] Description of reference numerals:

[0034] 100 shock absorber assembly, 1 piston, 11 first chamber, 12 second chamber, 13 piston rod, 131 limiter, 132 piston head, 1321 fluid hole, 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 body, 32 one-way valve body, 4 base, 41 piston interface, 411 first inlet and outlet, 412 second inlet and outlet, 42 first connecting pipeline, 421 first control interface, 422 damping interface, 43 second connecting pipeline, 431 second control interface, 5 filling conversion component, 6 shock absorber bushing, 7 accumulator, 8 controller, 9 driving device. DETAILED DESCRIPTION

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

[0036] If there are terms involving directional indications or positional relationships in the embodiments of the present application (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 relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings); if the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, the terms "first", "second", etc. involved in the embodiments of the present application are only used for the purpose of convenience of description and cannot be understood as indicating or implying relative importance.

[0037] refer to Figures 1 to 3 The present 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 to cooperate with the piston 1 and includes a piston interface 41 and a first connecting pipeline 42 ( Figure 3 and Figure 4The piston interface 41 includes a first inlet and outlet 411 and a second inlet and outlet 412. The first inlet and outlet 411 is connected to the first chamber 11 of the piston 1. The second inlet and outlet 412 is connected to the second chamber 12 of the piston 1. The solenoid valve 2 includes a first solenoid valve 21 for controlling the on-off of the first connecting line 42. The first inlet and outlet 411 and the second inlet and outlet 412 are connected at both ends of the first connecting line 42, respectively. The first connecting line 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 the damping valve 3 for controlling the flow damping of the fluid in the first connecting line 42. Among them, the piston interface 41 and the first control interface 421 are located on different surfaces. The piston interface 41 and the damping interface 422 are located on different surfaces.

[0038] The base 4 of the present application is integrated with a piston interface 41, a first control interface 421 and a damping interface 422, so that the shock absorber assembly 100 can be connected with the first solenoid valve 21 and the damping valve 3, which is conducive to improving the functional integration of the shock absorber assembly 100. At the same time, the piston interface 41 and the first control interface 421 and the damping interface 422 are located on different surfaces, so the base 4 allows the first solenoid valve 21 and the damping valve 3 to be connected as shown in FIG. Figure 1 As shown, it is arranged below the piston 1. In this way, when the first solenoid valve 21 and the damping valve 3 are assembled on the base 4, not only will the up and down movement of the piston rod 13 of the piston 1 not be hindered, but the longitudinal space of the shock absorber assembly 100 can also be fully utilized. It can be seen that the base 4 of the present application is conducive to optimizing the space of the shock absorber assembly 100 in the moving direction of the piston rod 13.

[0039] By assembling the solenoid valve 2 and the damping valve 3 on the base 4 of the present application, the shock absorber assembly 100 can select the flow or blocking of the first connecting pipeline 42 and the flow damping of the first connecting pipeline 42 according to the working conditions, which is more intelligent and humanized. At the same time, the base 4 integrated with the first control interface 421, the damping interface 422 and the piston interface 41 makes it unnecessary for the shock absorber assembly 100 to find installation positions for the solenoid valve 2, the piston 1 and the damping valve 3 respectively and then connect them through subsequent pipelines, which is conducive to improving the structural simplicity of the shock absorber assembly 100, thereby facilitating subsequent connection and repair and maintenance.

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

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

[0042] When the shock absorber assembly 100 wants the piston rod 13 to remain at a certain position without moving up or down, the controller 8 can control the first solenoid valve 21 to close, and at this time the fluid in the first connecting pipeline 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, which can be understood as the piston interface 41, the first control interface 421 and the damping interface 422 are 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, that is, located on the arc surface of the cylinder, while the piston interface 41 is located on the plane of the cylinder and is not located on the same surface as the first control interface 421 and the damping interface 422. This application does not limit this.

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

[0045] like Figure 3 As shown in the figure, the one-way valve body 32 of the upper damping valve 3 does not allow the fluid to pass through, so the fluid flows through the damping valve 3 through the throttle valve body 31. The one-way valve body 32 of the lower damping valve 3 allows the fluid to pass through, so the fluid passes through the one-way valve body 32 and passes through the damping valve 3. On the contrary, Figure 4 As shown in the accompanying drawings, the one-way valve body 32 of the lower damping valve 3 does not allow the fluid to pass through, so the fluid flows through the damping valve 3 through the throttle valve body 31. The one-way valve body 32 of the upper damping valve 3 allows the fluid to pass through, so the fluid passes through the one-way valve body 32 and passes through the damping valve 3.

[0046] The arrangement of the two damping valves 3 of this embodiment and the arrangement of the throttle valve body 31 and the one-way valve body 32 of the damping valve 3 allow the two damping valves 3 to be arranged in series, thereby adjusting the fluid damping in two directions in the same circuit, which is beneficial to improving the adjustment response speed of the controller 8. Compared with the embodiment in which a two-way damping valve is arranged, the arrangement of the damping valve 3 of this embodiment is simpler, which is beneficial to reducing 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 illustrated position in the figure does not represent the position of the two damping valves 3 in the actual shock absorber assembly 100.

[0048] like Figure 2 As shown, in the embodiment where the number of the damping interfaces 422 is two, the two damping interfaces 422 are arranged on opposite sides of the base 4. In other words, the extension direction of the two damping interfaces 422 is 180 degrees. Since the volume of the damping valve 3 is usually large, the damping interfaces 422 are arranged on opposite sides to avoid interference between the two damping valves 3 to the greatest extent. At the same time, when the base 4 of the present application is used, the shock absorber assembly 100 does not need to worry about interference when a damping valve 3 with a larger volume is selected.

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

[0050] Back to Figure 3 and Figure 4 , the number of the first solenoid valve 21 is one, which is actually enough to realize the opening and closing of the first connecting pipeline 42. However, in some embodiments, the number of the first solenoid valves 21 of the first connecting pipeline 42 can include two. The two first solenoid valves 21 are respectively arranged near the first inlet and outlet 411 and the second inlet and 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, so that the two first solenoid valves 21 can minimize the fluid in the first chamber 11 and the second chamber 12 from continuing to flow under the action of inertia, thereby causing damage to the damping valve 3. It can also be understood that the setting of the two first solenoid valves 21 ensures that even if one of the first solenoid valves 21 in the first connecting pipeline 42 of the shock absorber assembly 100 fails and causes the first solenoid valve 21 to fail to close normally, that is, when one of the first solenoid valves 21 fails to achieve passage blocking, the shock absorber assembly 100 can also ensure normal operation.

[0051] In the embodiment where the number of the first solenoid valves 21 is two, the number of the first control interfaces 421 is two. Figure 2 As shown, the two first control interfaces 421 are located on the same surface of the base 4. Since the volume of the interface required for the first solenoid valve 21 to connect to the base 4 is relatively small, the first interfaces are arranged on the same surface of the base 4, which can improve the space utilization of the base 4 and facilitate the wiring of the assembler when assembling the shock absorber assembly 100 to the suspension system.

[0052] refer to Figure 5 and Figure 6 In some embodiments, the base 4 further includes a second connecting pipe 43 ( Figure 5 and Figure 6 The two ends of the second connecting line 43 are connected to the first inlet and outlet 411 and the second inlet and outlet 412 respectively. The second connecting line 43 is provided with a driving interface (not shown). The driving interface is used to connect with the driving device 9 to drive the fluid in the second connecting line 43 to flow. Figure 5 For example, the driving device 9 is running, so that the fluid in the second connecting pipe 43 has a tendency to flow from the first chamber 11 to the second chamber 12, thereby increasing the volume of the fluid in the second chamber 12 and pushing the piston rod 13 upward. In this way, the shock absorber assembly 100 forms an active lifting effect and realizes the effect of active restoring damping. Figure 6 In the illustrated embodiment, the operation of the driving device 9 causes the fluid in the second communication line 43 to have a tendency to flow from the second chamber 12 to the first chamber 11, thereby increasing the volume of the fluid in the first chamber 11 and pushing the piston rod 13 downward. In this way, the shock absorber assembly 100 forms an active compression effect, achieving an active compression damping effect.

[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 form the effect of active lifting and active compression, so that the shock absorber assembly 100 can meet the requirements of shock absorption and support under more different working conditions. The base 4 further integrates the drive interface, further improving the structural compactness of the shock absorber assembly 100, which is conducive to optimizing space and improving functional integration. The shock absorber assembly 100 provided with the base 4 of the present application can achieve passive restoring damping, passive compression damping, active restoring damping and active compression damping, so it can meet more different working conditions during use, which is conducive to improving the intelligence of the shock absorber assembly 100.

[0054] The drive device 9 may be directly connected to the drive interface via a pipeline. Figure 1As shown, the shock absorber assembly 100 also includes a filling conversion member 5 connected to the drive interface. The filling conversion member 5 is used as a connecting member to connect the base 4 and the drive device 9. At the same time, the filling conversion member 5 is provided with a fluid filling port, so that maintenance personnel can add fluid to the shock absorber assembly 100 through the fluid filling port. It can be seen that the shock absorber assembly 100 of this embodiment can realize the connection of the solenoid valve 2, the connection of the damping valve 3, the connection of the drive device 9 and the filling of the fluid by providing the base 4, further increasing the number of functions that the base 4 can provide, which is conducive to 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 respectively connected to a damping valve 3, one side surface is connected to a plurality of solenoid valves 2, and one side surface is connected to a filling conversion member 5. It can be seen that Figure 1 The base 4 of the illustrated embodiment fully utilizes every surface of the base 4, provides a basis for the functional integration of the shock absorber assembly 100, and is conducive to reducing the volume of the shock absorber assembly 100. However, in other embodiments, the base 4 can also be configured as a cylinder, a prism, etc.

[0056] The driving device 9 may be a structure such as a hydraulic pump. When the shock absorber assembly 100 does not need to use the second connecting line 43, the driving device 9 may not work, and at this time, it is difficult for the fluid to push the driving device 9 to circulate. In some optional embodiments, the solenoid valve 2 includes a second solenoid valve 22 that controls the on and off of the second connecting line 43. The second connecting line 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 line 43. The second solenoid valve 22 is controlled by the controller 8. The controller 8 can further control whether the fluid can flow into the second connecting line 43 by controlling the switch of the second solenoid valve 22. By providing the second solenoid valve 22 in the second connecting line 43, the shock absorber assembly 100 can prevent the fluid from continuously generating fluid pressure on the driving device 9, thereby causing the driving device 9 to malfunction or be damaged. Compared with the driving device 9, the second solenoid valve 22 is easier to replace and the cost is lower. Therefore, the provision of the second solenoid valve 22 is conducive to protecting the driving device 9.

[0057] The fluid can flow into the driving device 9 from one end of the driving device 9 close to the first inlet and outlet 411, and can also flow into the driving device 9 from one end of the driving device 9 close to the second inlet and outlet 412. In some optional embodiments, the base 4 includes two second control interfaces 431, and the second connecting line 43 is arranged in such a way that two second solenoid valves 22 connected to the second control interfaces 431 are respectively located at the two inlets and outlets of the driving device 9. In this way, the base 4 can provide protection for the driving device 9 at both ends of the driving device 9. It is easy to understand that in the embodiment of the two second control interfaces 431, the number of the second solenoid valves 22 in the second connecting line 43 is also correspondingly set to two.

[0058] Further, in the embodiment where the second connecting pipeline 43 includes the 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 mentioned above, the solenoid valve 2 is usually small in size, so the first control interface 421 and the second control interface 431 are allowed to be arranged on the same surface, which improves the compactness of the structure of the base 4 and facilitates the assembler to connect the first solenoid valve 21 and the second solenoid valve 22 when assembling the shock absorber assembly 100.

[0059] But in fact, the first control interface 421 and the second control interface 431 may also be located on different surfaces, which to a certain extent facilitates the assembler 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 taken as an example rather than a limitation. The relative positional relationship between the first control interface 421 and the second control interface 431 can be adaptively modified according to the direction of the internal flow channel of the base 4. This application does not limit this.

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

[0062] Through such an arrangement, the first chamber 11 and the second chamber 12 of the piston 1 can achieve fluid communication through the first inlet and outlet 411 and the second inlet and outlet 412 without the need for additional interfaces for connection, which is beneficial to reducing the complexity of the structure and optimizing the overall volume of the shock absorber assembly 100.

[0063] like Figure 2 As shown, in this embodiment, the first inlet and outlet 411 is set 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. When the second inlet and outlet 412 is a circular hole, the center of the first inlet and outlet 411 coincides with the center of the second inlet and outlet 412. When the second inlet and outlet 412 is, for example, a square hole, the center of the first inlet and outlet 411 coincides with the intersection of the diagonal lines of the second inlet and outlet 412. By setting it in this way, the flow area of ​​the first inlet and outlet 411 is larger, thereby improving the efficiency of the fluid entering or leaving the side chamber 14. And compared with the annular hole, the waist-shaped hole can prevent the first inlet and outlet 411 from having too much influence on the structural strength of the base 4.

[0064] In some embodiments, the number of the first inlet and outlet 411 can be multiple, so that the connection position of the first inlet and outlet 411 and the side chamber 14 can be reasonably set according to the direction of the first connecting pipe 42 and the second connecting pipe 43. And the shapes of the multiple first inlet and outlet 411 can be the same, for example, all are set as waist-shaped holes or round holes. Or, the shapes of the first inlet and outlet 411 can be different, such as Figure 2 As shown, the fluid flow area can be reasonably allocated according to the flow rates of different first inlets and outlets 411.

[0065] refer to Figure 1 In an optional embodiment, the shock absorber assembly 100 further includes an accumulator 7 connected to the first chamber 11. The accumulator 7 is used to store the fluid in the shock absorber assembly 100. When the piston rod 13 moves upward, the fluid in the first chamber 11 moves toward the second chamber 12, that is, the second chamber 12 is in a state where fluid needs to be replenished. At this time, the fluid in the accumulator 7 leaves the accumulator 7, thereby satisfying the need for fluid replenishment in the second chamber 12. Figure 3 and Figure 5 When the piston rod 13 moves downward, the fluid in the second chamber 12 moves toward the first chamber 11, that is, the fluid in the second chamber 12 needs to find space for storage. At this time, the fluid flows into the first chamber 11 and the accumulator 7, thereby meeting the fluid demand, as shown in FIG. Figure 4 and Figure 6 Status shown.

[0066] By providing the accumulator 7 , the shock absorber assembly 100 can always maintain a state of having excess fluid, so that the piston rod 13 can be fully moved to a required position, thereby ensuring the support and shock absorbing effects of the shock absorber assembly 100 .

[0067] In the embodiment where the piston 1 includes the side chamber 14, the accumulator 7 can be arranged 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. Figure 1 In the illustrated embodiment, the outer side of the accumulator 7 includes a plurality of concave-convex structures. The concave-convex structures can increase the outer surface area of ​​the accumulator 7, so that when the fluid inside the accumulator 7 increases or decreases the heat generated, the heat can be dissipated as quickly as possible, which is conducive to maintaining the temperature of the fluid inside the shock absorber assembly 100 at a suitable temperature.

[0068] also, Figure 7 In the illustrated embodiment, the piston rod 13 is provided with a movable position-adjustable stopper 131. By adjusting the position of the stopper 131, the movement stroke of the piston rod 13 can be adjusted. In this way, the shock absorber assembly 100 can be customized according to the use 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 hole 1321 that penetrates the piston head 132 along the moving direction 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 hole 1321 on one side of the first chamber 11. The one-way switch 133 is configured to allow fluid to enter the first chamber 11 from the second chamber 12 through the fluid hole 1321, but not to allow fluid to enter the fluid hole 1321 from the first chamber 11. With such a configuration, when the shock absorber assembly 100 is subjected to a force that causes 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 shock absorber assembly 100 is subjected to a large force at this time, so the one-way switch 133 is opened, allowing the fluid in the second chamber 12 to flow rapidly into the first chamber 11, assisting the piston rod 13 to move downward. Through such a configuration, the fluid in the second chamber 12 can flow to the first chamber 11 inside the piston 1, thereby avoiding damage to the solenoid valve 2, the damping valve 3 and the piston rod 13 caused by excessive fluid pressure in the first connecting line 42 and the second connecting line 43 under extreme conditions. Those skilled in the art can select different materials for the one-way switch 133, 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, the present application also provides a suspension system, including the shock absorber assembly 100 described in the above embodiments. The suspension system provided with the shock absorber assembly 100 of the present application can meet the support and buffering requirements under various working conditions, and is more intelligent and humane. At the same time, the shock absorber assembly 100 is conducive to optimizing the volume of the suspension system due to the integrated setting of the base 4.

[0071] The present application also provides a vehicle, including the suspension system described in the above embodiment. By setting the suspension system of the present application, the vehicle can select the flow or blocking of the first connecting pipe 42 and the flow damping of the first connecting pipe 42 under different working conditions, thereby providing passengers with a more humane and intelligent shock absorption effect, which is conducive to improving the riding comfort of the vehicle.

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

Claims

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

2. The base according to claim 1, characterized in that: The base (4) also includes: The second connecting pipeline (43) has two ends respectively connected to the first inlet and outlet (411) and the second inlet and outlet (412); the second connecting pipeline (43) is provided with a driving interface; the driving interface is used to connect to a driving device (9) to drive the flow of fluid in the second connecting pipeline (43).

3. The base according to claim 2, characterized in that: The second connecting pipeline (43) further comprises a second control interface (431); the second control interface (431) is used to connect to a second solenoid valve (22) for controlling the on / off of the second connecting pipeline (43).

4. The base according to claim 3, characterized in that: The second control interface (431) and the first control interface (421) are located on the same surface of the base (4).

5. The base according to claim 1, characterized in that: The number of the damping interfaces (422) is two; 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 according to any one of claims 1 to 5, characterized in that: The first inlet and outlet (411) is configured 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 in that: The invention comprises a piston (1), a solenoid valve (2), a damping valve (3) and a base (4) as claimed in any one of claims 1 to 6; the first chamber (11) of the piston (1) is connected to the first inlet and outlet (411); the second chamber (12) of the piston (1) is connected to the second inlet and outlet (412); the solenoid valve (2) comprises a first solenoid valve (21) for controlling the on-off of the first connecting pipeline (42); the first solenoid 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 according to claim 7, characterized in that: The number of the damping interface (422) and the number of the damping valve (3) are two respectively; the damping valve (3) comprises a throttle valve body (31) and a one-way valve body (32); the two damping valves (3) are connected in series and the allowed flow directions of the two one-way valve bodies (32) are opposite; 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 in 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) via the fluid hole (1321).

9. A suspension system, characterized in that: It comprises the shock absorber assembly (100) as claimed in any one of claims 7 to 8.

10. A vehicle, characterized in that: Comprising the suspension system of claim 9.

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