Valve devices, damping systems, and vehicles

Abstract

This invention discloses a valve device, a damping system, and a vehicle, relating to the field of vehicle technology. It aims to solve the problem of low damping control precision in valve devices, which fails to guarantee vehicle stability during movement. An embodiment of this application provides a valve device including a base and a valve body assembly. The base includes a first connecting portion and a second connecting portion, the first connecting portion being adapted to connect a first module, and the second connecting portion being adapted to connect a second module. The valve body assembly, disposed on the base, is capable of adjusting the damping coefficients of oil flowing from the first connecting portion to the second connecting portion and from the second connecting portion to the first connecting portion, respectively.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and more particularly to valve devices, damping systems, and vehicles. Background Technology

[0002] The vehicle is equipped with a damping system, which is used to regulate the vehicle's dynamics and reduce vibrations and bumps during driving.

[0003] However, in related technologies, the damping control precision of the valve device in the damping system is low, which cannot guarantee the stability of the vehicle during movement. Summary of the Invention

[0004] The purpose of this invention is to provide a valve device, a damping system, and a vehicle, aiming to solve the problem that the damping control accuracy of the valve device in the damping system is low, which cannot guarantee the stability of the vehicle during movement.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This application provides a valve device, including a base and a valve body assembly. The base includes a first connecting portion and a second connecting portion, the first connecting portion being adapted to connect a first module, and the second connecting portion being adapted to connect a second module; the valve body assembly is disposed on the base and located between the first connecting portion and the second connecting portion, and is capable of adjusting the damping coefficient of oil flowing from the first connecting portion to the second connecting portion and from the second connecting portion to the first connecting portion, respectively.

[0007] This application provides a valve device that, by including a base and a valve body assembly, allows for independent adjustment of the damping coefficient of oil flowing from the first connection to the second connection, i.e., the damping coefficient of oil flowing from the first module to the second module within the valve device. It also allows for independent adjustment of the damping coefficient of oil flowing from the second connection to the first connection, i.e., the damping coefficient of oil flowing from the second module to the first module within the valve device. This enables individual control of the damping coefficient of oil in both directions, improving the control accuracy of the valve device's damping coefficient and enhancing the reliability of the valve device's vibration damping effect.

[0008] In some embodiments, the valve body assembly includes a damping valve assembly adapted to adjust the damping coefficient of oil flowing from the first connection to the second connection and to adjust the damping coefficient of oil flowing from the second connection to the first connection.

[0009] This application provides a valve device that, through the arrangement of a damping valve assembly, facilitates the adjustment of the damping coefficient in different directions.

[0010] In some embodiments, the damping valve assembly includes a first damping valve section and a second damping valve section, the first damping valve section being adapted to adjust the damping coefficient of oil flowing from the first connection section to the second connection section, and the second damping valve section being adapted to adjust the damping coefficient of oil flowing from the second connection section to the first connection section.

[0011] This application provides a valve device. By configuring a damping valve assembly including a first damping valve section and a second damping valve section, it is possible to adjust the damping coefficient of oil flowing from the first connection section to the second connection section, and to adjust the damping coefficient of oil flowing from the second connection section to the first connection section. Furthermore, the configuration of the first damping valve section and the second damping valve section facilitates the disassembly, assembly, and maintenance of the valve device.

[0012] In some embodiments, the first damping valve includes a first base and a first switching assembly. The first base is disposed on a base and encloses a first inner cavity, which communicates with a first connecting portion and a second connecting portion. The first switching assembly is installed in the first inner cavity and is adapted to adjust the damping coefficient of the oil flowing in the first inner cavity.

[0013] This application provides a valve device that, through the arrangement of a first base and a first switching assembly, allows for the adjustment of the damping coefficient of oil flow in a first inner cavity via the first switching assembly. The structure is simple and compact.

[0014] In some embodiments, the first switch assembly includes a first channel, the two ends of which are connected to a first connecting portion and a second connecting portion. The first switch assembly includes a first movable member, which has an open state and a closed state. In the open state, the first movable member is separated from the first base, and oil can flow through the gap between the first movable member and the first base to flow from the first connecting portion to the second connecting portion. The damping coefficient of the first switch assembly is N1. In the closed state, the first movable member is in contact with the first base, and the damping coefficient of the first switch assembly is N2. Oil can flow through the first channel to flow from the first connecting portion to the second connecting portion. N1 is less than N2.

[0015] This application provides a valve device. With the above-mentioned settings, the damping coefficient of the first switching component can be set, and the damping coefficient can be adjusted by the state of the first moving part, thereby enabling buffering of the vehicle under different conditions and improving the vehicle's shock resistance.

[0016] In some embodiments, the first switch assembly includes a first channel, the two ends of which are connected to a first connecting portion and a second connecting portion. The first switch assembly includes a first movable member, and the first base includes a first opening. The first movable member includes an energized state and an de-energized state. In the de-energized state, oil flowing out of the first connecting portion reaches the first opening, and the damping force overcome by the oil is M1. The energized state includes a first state and a second state. In the first state, oil flowing out of the first connecting portion flows through the first channel, and the damping force overcome by the oil is M2. In the second state, oil flowing out of the first connecting portion reaches the first opening, and the damping force overcome by the oil is M3. M3 is greater than M2, and M2 is greater than M1.

[0017] This application provides a valve device that can adjust the damping force overcome by the oil by setting the state of the first movable part. If the oil flow rate is high, the first movable part can be set to an energized state, which can effectively achieve the buffering effect. If the oil flow rate is low, the first movable part can be set to an de-energized state, which can achieve the buffering effect and reduce energy consumption.

[0018] In some embodiments, the first movable member includes a first part and a second part. The first part is mounted on a first base, and one end of the second part abuts against the first base, while the other end abuts against the first part and has a degree of freedom of movement relative to the first part. In the de-energized state, oil flowing from the first connection portion can push the second part to move closer to the first part and flow through the gap between the second part and the first base. In the second state, oil flowing from the first connection portion can push the second part to move closer to the first part and flow through the gap between the second part and the first base.

[0019] This application provides a valve device. By configuring a first movable member including a first part and a second part, the force of the oil pushing the second part closer to the first part in the power-off state is less than the force of the oil pushing the second part closer to the first part in the second state. By configuring the first part and the second part, the two states of the first movable member can be switched, which can simplify the number of structures and improve the working efficiency of the valve device.

[0020] In some embodiments, the first movable member further includes a second elastic member, the two ends of which are connected to the second part and the first base, respectively. In the power-off state and the second state, the second elastic member is in the recovery state. The oil flowing out from the first connection part pushes the second part to move closer to the first part and compresses the second elastic member.

[0021] This application provides a valve device in which, by providing a second elastic element, the second part can be pressed against the first base when the oil is not flowing. The second elastic element can quickly press the second part against the first base, thereby improving the response speed of the entire system and increasing its reliability.

[0022] In some embodiments, the first movable member further includes a first elastic member, the two ends of which are respectively connected to the first part and the first base. The first channel is located at least in the first part. In the first state, the first elastic member is in the restored state. The oil flowing out from the first connection portion passes through the first channel located in the first part and pushes the first part to move away from the second part while compressing the first elastic member. The oil flows out from the gap between the first part and the second part.

[0023] This application provides a valve device. By setting the first channel at least in the first part, it is not necessary to set the first channel in other positions of the valve device. Setting the first channel in the first part facilitates manufacturing. In addition, the setting of the first elastic element can improve the response speed to the oil pushing the first part to move away from the second part, and has high reliability.

[0024] In some embodiments, the first base includes a first opening, the first switch assembly includes a first one-way element, and oil can flow from the first connection portion through the first one-way element and from the first opening to the second connection portion.

[0025] This application provides a valve device that, through the aforementioned arrangement of flowing through the first one-way component, eliminates the need for energy consumption and reduces costs.

[0026] In some embodiments, one end of the first one-way member is connected to the first base, and the other end is in contact with the first base. The flow of oil can separate the other end of the first one-way member from the first base, and the oil flows from the gap between the first one-way member and the first base to the first opening.

[0027] This application provides a valve device. By setting the structure of the first one-way member, when oil flows from the first connection part through the first one-way member and out of the first opening, the oil drives the first one-way member to separate from the first base. When the oil does not flow from the first connection part through the first one-way member and out of the first opening, the first one-way member contacts the first base. The above state switching method is easy to achieve.

[0028] In some embodiments, the second damping valve includes a second base and a second switching assembly. The second base is disposed on a base and encloses a second inner cavity, which communicates with the first connecting portion and the second connecting portion. The second switching assembly is installed in the second inner cavity and is adapted to adjust the damping coefficient of the oil flowing in the second inner cavity.

[0029] This application provides a valve device that, through the arrangement of a second base and a second switching assembly, allows for the adjustment of the damping coefficient of oil flow in the second inner cavity via the second switching assembly. The structure is simple and compact.

[0030] In some embodiments, the second switch assembly includes a second channel, the two ends of which are connected to the first connection portion and the second connection portion. The second switch assembly includes a second movable member, which has an open state and a closed state. In the open state, the second movable member is separated from the second base, and oil can flow through the gap between the second movable member and the second base to flow from the second connection portion to the first connection portion. The damping coefficient of the second switch assembly is N3. In the closed state, the second movable member is in contact with the second base, and the damping coefficient of the second switch assembly 2122 is N4. Oil can flow through the second channel to flow from the second connection portion to the first connection portion. N3 is less than N4.

[0031] This application provides a valve device. With the above-mentioned configuration, the damping coefficient of the second switching component can be set, and the damping coefficient can be adjusted by the state of the second moving part, thereby enabling buffering of the vehicle under different conditions and improving the vehicle's shock resistance.

[0032] In some embodiments, the second switch assembly includes a second channel, the two ends of which are connected to a second connecting portion and a first connecting portion. The second switch assembly includes a second movable member, and the second base includes a second opening. The second movable member includes an energized state and an de-energized state. In the de-energized state, oil flowing from the second connecting portion reaches the second opening, and the damping force overcome by the oil is M4. The energized state includes a third state and a fourth state. In the third state, oil flowing from the second connecting portion flows through the second channel, and the damping force overcome by the oil is M5. In the fourth state, oil flowing from the second connecting portion reaches the second opening, and the damping force overcome by the oil is M6. M6 is greater than M5, and M5 is greater than M4.

[0033] This application provides a valve device that can adjust the damping force overcome by the oil by setting the state of the second movable part. If the oil flow rate is high, the second movable part can be set to an energized state, which can effectively achieve the buffering effect. If the oil flow rate is low, the second movable part can be set to an de-energized state, which can achieve the buffering effect and reduce energy consumption.

[0034] In some embodiments, the second movable member includes: a third part, mounted on the second base; and a fourth part, one end of which abuts against the second base, the other end of which abuts against the third part and has a degree of freedom of movement relative to the third part. In the power-off state, oil flowing out from the second connection part can push the fourth part to move closer to the third part and flow through the gap between the fourth part and the second base. In the fourth state, oil flowing out from the second connection part can push the fourth part to move closer to the third part and flow through the gap between the fourth part and the second base.

[0035] This application provides a valve device in which the second movable member includes a third part and a fourth part. In the power-off state, the force of the oil pushing the fourth part to move closer to the third part is less than the force of the oil pushing the fourth part to move closer to the third part in the fourth state. The arrangement of the third and fourth parts enables the switching between the two states of the second movable member, which simplifies the number of structures and improves the working efficiency of the valve device.

[0036] In some embodiments, the second movable member further includes a third elastic member, the two ends of which are connected to the third part and the second base, respectively. The first channel is located at least in the third part. In the third state, the third elastic member is in the restored state. The oil flowing out from the second connection portion passes through the first channel located in the third part and pushes the third part to move away from the fourth part while compressing the third elastic member. The oil flows out from the gap between the third part and the fourth part.

[0037] This application provides a valve device in which, by setting a third elastic element, the fourth part can be pressed against the second base when the oil is not flowing. The restoration of the third elastic element can quickly press the fourth part against the second base, thereby improving the response speed of the entire system and increasing its reliability.

[0038] In some embodiments, the second base includes a second opening, the second switch assembly includes a second one-way element, and oil can flow from the second connection portion through the second one-way element and from the second opening to the first connection portion.

[0039] This application provides a valve device in which the above-mentioned arrangement of the second one-way component provides damping force for the flow of oil in the second inner cavity without consuming energy, thus reducing costs.

[0040] In some embodiments, one end of the second one-way member is connected to the second base, and the other end is in contact with the second base. The flow of oil can separate the other end of the second one-way member from the second base, and the oil flows from the gap between the second one-way member and the second base to the second opening.

[0041] This application provides a valve device. By setting the structure of the second one-way member, when oil flows from the second connection part through the second one-way member and out of the second opening, the oil drives the second one-way member to separate from the second base. When the oil does not flow from the second connection part through the second one-way member and out of the second opening, the second one-way member contacts the second base. The above state switching method is easy to achieve.

[0042] In some embodiments, the valve body assembly further includes a first one-way valve portion and a second one-way valve portion, the first one-way valve portion allowing oil to flow from the first connection portion to the second connection portion, and the second one-way valve portion allowing oil to flow from the second connection portion to the first connection portion.

[0043] This application provides a valve device, which, through the valve body assembly, further includes a first one-way valve section and a second one-way valve section, enabling oil to flow from the first connection section to the second connection section and from the second connection section to the first connection section, respectively.

[0044] In some embodiments, a first check valve is connected between a second damping valve and a second connecting portion. The second damping valve includes a second inlet end and a second outlet end. The second inlet end is connected to the first check valve, and the second outlet end is connected to the first damping valve. The first check valve allows oil to flow unidirectionally from the first damping valve to the second connecting portion.

[0045] This application provides a valve device. With the above-described configuration, the assembly and manufacturing process of the valve device can be simplified, and the structure of the valve device can be made more compact.

[0046] In some embodiments, the first one-way valve includes a first connecting seat and a first valve body. The first connecting seat is connected between the second connecting portion and the second inlet end, and the first connecting seat has a third opening; the first valve body is capable of opening or closing the third opening.

[0047] This application provides a valve device in which a first one-way valve part includes a first connecting seat and a first valve body. When oil flows to and contacts the first valve body, a third opening can be opened to allow it to flow smoothly, thus preventing backflow of oil.

[0048] In some embodiments, the second check valve is connected between the first damping valve and the first connecting seat. The first damping valve includes a first inlet end and a first outlet end. The first inlet end is connected to the second check valve, and the first outlet end is connected to the second damping valve. The first check valve allows oil to flow unidirectionally from the second damping valve to the first connecting seat.

[0049] This application provides a valve device. With the above-described configuration, the assembly and manufacturing process of the valve device can be simplified, and the structure of the valve device can be made more compact.

[0050] In some embodiments, the second one-way valve includes a second connecting seat and a second valve body. The second connecting seat is connected between the first connecting portion and the first inlet end, and the second connecting seat has a fourth opening; the second valve body is capable of opening or closing the fourth opening.

[0051] This application provides a valve device in which a second one-way valve part includes a second connecting seat and a second valve body. When oil flows to and contacts the second valve body, a fourth opening can be opened to allow smooth flow and prevent backflow of oil.

[0052] In some embodiments, the base further includes a third connecting portion, one end of which can be connected to the energy storage device, and the other end of which communicates with the second one-way valve portion and the first connecting portion.

[0053] This application provides a valve device. By providing a third connection, when the oil flow rate and pressure inside the valve device are too high, some of the oil can flow into the accumulator, thereby protecting the first module.

[0054] In some embodiments, the base further includes a fourth connecting portion, one end of which can be connected to a stiffness switching valve, and the other end of which communicates with a first check valve portion and a second connecting portion.

[0055] This application provides a valve device. By providing a fourth connection, when the oil flow rate and pressure inside the valve device are too high, some of the oil can flow into the stiffness switching valve, thereby protecting the second module.

[0056] This application provides a damping system including any of the valve devices described above.

[0057] This application provides a damping system. Through the above settings, the damping inside the damping system can be precisely controlled, thereby improving the reliability of the damping system.

[0058] In some embodiments, the damping system includes a first module and a second module. The first module is used for shock absorption; the second module is used for oil storage.

[0059] This application provides a damping system that ensures the integrity of the internal circuitry of the damping system through the configuration of a first module and a second module.

[0060] In some embodiments, the damping system includes an accumulator and a stiffness switching valve. The accumulator is used to buffer the oil flowing from the second module to the first module, and the stiffness switching valve is used to buffer the oil flowing from the first module to the second module.

[0061] This application provides a damping system that, through the installation of an accumulator and a stiffness conversion valve, can provide buffer protection for the damping system and reduce the probability of damage to the first and second modules of the damping system.

[0062] This application also provides a vehicle that includes any of the above-described damping systems.

[0063] This application provides a vehicle in which the damping system described above improves the vehicle's stability during driving.

[0064] In some embodiments, the vehicle includes wheels and a body, the body being mounted on the wheels, a valve device being mounted on the body, and the body being connected to the wheels via a first module.

[0065] This application provides a vehicle whose stability during driving is improved through the above-described configuration. Attached Figure Description

[0066] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the 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.

[0067] Figure 1 This is a schematic diagram of the vehicle structure in an embodiment of this application;

[0068] Figure 2 for Figure 1 A schematic diagram of the valve body device in the vehicle shown.

[0069] Figure 3 for Figure 2 A cross-sectional schematic diagram of the base in the valve body assembly shown.

[0070] Figure 4 for Figure 3 A top view of the base shown;

[0071] Figure 5 for Figure 4 A schematic cross-sectional view of section AA of the base shown;

[0072] Figure 6 for Figure 3 A bottom view of the base shown;

[0073] Figure 7 for Figure 3 A schematic diagram of the base shown from the left;

[0074] Figure 8 for Figure 3 A right-side view of the base shown;

[0075] Figure 9 for Figure 2 A partial cross-sectional view of the valve body assembly in the valve body device shown.

[0076] Figure 10 for Figure 2 The diagram shows a cross-sectional view of the first damping valve section in a state where the oil flows from the first connection to the second connection.

[0077] Figure 11 for Figure 2 The diagram shows a cross-sectional view of the first damping valve section in another state, where the oil flows from the first connection to the second connection.

[0078] Figure 12 for Figure 2 The diagram shows a cross-sectional view of the first damping valve section in another state as the oil flows from the first connection to the second connection.

[0079] Figure 13 for Figure 2 The diagram shows a cross-sectional view of the oil flowing from the second connection to the first connection, with the second damping valve in a certain state.

[0080] Figure 14 for Figure 2 The diagram shows a cross-sectional view of the oil flowing from the second connection to the first connection, with the second damping valve section in another state.

[0081] Figure 15 for Figure 2 The diagram shows a cross-sectional view of the oil flowing from the second connection to the first connection, with the second damping valve in another state.

[0082] Figure label:

[0083] 1. Vehicle; 11. Body; 12. Wheel;

[0084] 100 bases;

[0085] 110 First connecting part;

[0086] 120 Second connecting part;

[0087] 130 Third connecting part; 140 Fourth connecting part;

[0088] 200 valve body assembly;

[0089] 210 Damping valve assembly; 211 First damping valve section; 2111 First base; A1 First opening; 2112 First switch assembly; B1 First one-way component; B2 First channel; B3 First moving component; B31 First part; B32 Second part; 212 Second damping valve section; 2121 Second base; C1 Second opening; 2122 Second switch assembly; D1 Second one-way component; D2 Second channel; D3 Second moving component; D31 Third part; D32 Fourth part;

[0090] 220 First one-way valve section; 221 First connecting seat; 222 First valve body;

[0091] 230 Second check valve section; 231 Second connecting seat; 232 Second valve body. Detailed Implementation

[0092] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0093] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0094] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "communication" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a direct connection or an indirect connection through an intermediate medium, or a communication between the internal components of two elements. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0095] In embodiments of the invention, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, article, or apparatus that includes that element.

[0096] In embodiments of the present invention, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design described as "exemplary" or "for example" in embodiments of the present invention should not be construed as being more preferred or advantageous than other embodiments or designs. Rather, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0097] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0098] This application provides a vehicle 1, which can be a pure electric vehicle 1, a hybrid electric vehicle 1, a plug-in hybrid electric vehicle 1, a range-extended electric vehicle 1, a gasoline vehicle, etc. Vehicle 1 can also be a sedan, truck, bus, lorry, trailer, etc.

[0099] Please refer to Figure 1 As shown, vehicle 1 includes a body 11 and wheels 12. The body 11 is used for passengers to ride in and for carrying goods, and the wheels 12 are mounted under the body 11 to support the body 11 and to roll on the road surface so that vehicle 1 can move.

[0100] A damping system is connected between the body 11 and the wheel 12. The damping system includes a hydraulic shock absorber, a valve device, and an oil reservoir. The damping system is connected between the body 11 and the wheel 12 through the hydraulic shock absorber. The hydraulic shock absorber, valve device, and oil reservoir are filled with oil.

[0101] When wheel 12 moves upward, the piston of the hydraulic damper moves downward and drives the oil from the hydraulic damper into the oil reservoir through the valve device. During the flow of the oil, the oil is damped by the valve device, which buffers the mechanical force of the wheel 12 moving upward. When wheel 12 moves downward, the piston of the hydraulic damper moves upward and drives the oil from the oil reservoir into the hydraulic damper through the valve device. During the flow of the oil, the oil is damped by the valve device, which buffers the mechanical force of the wheel 12 moving downward.

[0102] However, in related technologies, the damping control precision of valve devices is low, which cannot guarantee the stability of vehicle 1 during movement.

[0103] To address the aforementioned issues, this application also provides a valve device, which will be described below.

[0104] Please refer to Figures 2 to 9As shown, this application embodiment provides a valve device, including a base 100 and a valve body assembly 200. The base 100 includes a first connecting portion 110 and a second connecting portion 120. The first connecting portion 110 is adapted to connect a first module, and the second connecting portion 120 is adapted to connect a second module. The valve body assembly 200 is disposed on the base 100 and located between the first connecting portion 110 and the second connecting portion 120, and is capable of adjusting the damping coefficient of oil flowing from the first connecting portion 110 to the second connecting portion 120 and from the second connecting portion 120 to the first connecting portion 110, respectively.

[0105] When the wheel 12 moves upward, the piston inside the hydraulic shock absorber moves downward. The oil inside the first module passes through the valve body assembly 200 from the first connecting part 110 to the second connecting part 120 and enters the second module. During the process of the oil moving from the first module through the first connecting part 110, the valve body assembly 200, and the second connecting part 120 to the second module, the piston movement of the first module is converted into the energy stored inside the oil. During the movement of the oil, the stored energy is converted into heat energy, etc., thereby absorbing the energy of the wheel 12 moving upward.

[0106] When the wheel 12 moves upward, the piston inside the first module moves upward, and the oil inside the second module passes through the valve body assembly 200 from the second connection part 120 to the first connection part 110 and enters the hydraulic damper. During the process of the oil moving from the first module through the second connection part 120, the valve body assembly 200, and the first connection part 110 to the first module, the piston movement of the first module is converted into the energy stored inside the oil. During the movement of the oil, the energy stored inside is converted into heat energy, etc., thereby absorbing the energy of the wheel 12 moving downward.

[0107] Optionally, the first module includes a hydraulic damper, which includes, but is not limited to, a monotube damper and a twintube damper. The second module includes an oil reservoir.

[0108] This application provides a valve device. By including a base 100 and a valve body assembly 200, the damping coefficient of the oil flowing from the first connecting part 110 to the second connecting part 120 can be adjusted independently, that is, the damping coefficient of the oil flowing from the first module to the second module in the valve device. Furthermore, the damping coefficient of the oil flowing from the second connecting part 120 to the first connecting part 110 can be adjusted independently, that is, the damping coefficient of the oil flowing from the second module to the first module in the valve device. This allows for independent control of the damping coefficient of the oil in both directions, improving the control accuracy of the damping coefficient of the valve device and enhancing the reliability of the valve device's vibration damping effect.

[0109] In some embodiments, the valve body assembly 200 includes a damping valve assembly 210, which is adapted to adjust the damping coefficient of oil flowing from the first connection portion 110 to the second connection portion 120, and to adjust the damping coefficient of oil flowing from the second connection portion 120 to the first connection portion 110.

[0110] The structure of the damping valve assembly 210 may also include a drive structure and two output terminals. The drive structure is connected to both output terminals, and different states of the two output terminals can be set through a single drive structure.

[0111] This application provides a valve device that, through the provision of a damping valve assembly 210, facilitates the adjustment of the damping coefficient in different directions.

[0112] In some embodiments, the damping valve assembly 210 includes a first damping valve portion 211 and a second damping valve portion 212. The first damping valve portion 211 is adapted to regulate the damping force of the oil flowing from the first connection portion 110 to the second connection portion 120, and the second damping valve portion 212 is adapted to regulate the damping coefficient of the oil flowing from the second connection portion 120 to the first connection portion 110.

[0113] This application provides a valve device. By configuring a damping valve assembly 210 including a first damping valve section 211 and a second damping valve section 212, it is possible to adjust the damping coefficient of oil flowing from the first connecting part 110 to the second connecting part 120, and to adjust the damping coefficient of oil flowing from the second connecting part 120 to the first connecting part 110. Furthermore, the configuration of the first damping valve section 211 and the second damping valve section 212 facilitates the disassembly, assembly, and maintenance of the valve device.

[0114] In some embodiments, the first damping valve portion 211 includes a first base 2111 and a first switch assembly 2112. The first base 2111 is disposed on the base 100 and surrounds to form a first inner cavity, which communicates with the first connecting portion 110 and the second connecting portion 120. The first switch assembly 2112 is installed in the first inner cavity and is adapted to adjust the damping coefficient of the oil flowing in the first inner cavity.

[0115] This application provides a valve device that, through the arrangement of a first base 2111 and a first switch assembly 2112, can adjust the damping force of oil flowing in the first inner cavity by means of the first switch assembly 2112. The structure is simple and compact.

[0116] In some embodiments, the first switch assembly 2112 includes a first channel B2, the two ends of which are connected to the first connecting portion 110 and the second connecting portion 120. The first switch assembly 2112 includes a first movable member B3, which has an open state and a closed state. In the open state, the first movable member B3 is separated from the first base 2111, and oil can flow through the gap between the first movable member B3 and the first base 2111 to flow from the first connecting portion 110 to the second connecting portion 120. The damping coefficient of the first switch assembly 2112 is N1. In the closed state, the first movable member B3 is in contact with the first base 2111, and the damping coefficient of the first switch assembly 2112 is N2. Oil can flow through the first channel B2 to flow from the first connecting portion 110 to the second connecting portion 120. N1 is less than N2.

[0117] This application provides a valve device. With the above settings, the damping coefficient of the first switch assembly 2112 can be set, and the damping coefficient can be adjusted by the state of the first moving part B3, thereby enabling buffering of the vehicle 1 under different states and improving the shock resistance of the vehicle 1.

[0118] In some embodiments, the first switch assembly 2112 includes a first channel B2, the two ends of which are connected to the first connecting portion 110 and the second connecting portion 120. The first switch assembly 2112 includes a first movable member B3, and the first base 2111 includes a first opening A1. The first movable member B3 includes an energized state and an de-energized state. In the de-energized state, the oil flowing out of the first connecting portion 110 reaches the first opening A1, and the damping force overcome by the oil is M1. The energized state includes a first state and a second state. In the first state, the oil flowing out of the first connecting portion 110 flows through the first channel B2, and the damping force overcome by the oil is M2. In the second state, the oil flowing out of the first connecting portion 110 reaches the first opening A1, and the damping force overcome by the oil is M3. M3 is greater than M2, and M2 is greater than M1.

[0119] This application provides a valve device that can adjust the damping force overcome by the oil by setting the state of the first movable member B3. If the oil flow rate is high, the first movable member B3 can be set to an energized state, which can effectively achieve the buffering effect. If the oil flow rate is low, the first movable member B3 can be set to an de-energized state, which can achieve the buffering effect and reduce energy consumption.

[0120] In some embodiments, the first movable member includes a first portion B31 and a second portion B32. The first portion B31 is mounted on the first base 2111, and one end of the second portion B32 abuts against the first base 2111, while the other end abuts against the first portion B31 and has a degree of freedom of movement relative to the first portion B31. In the power-off state, oil flowing from the first connection portion 110 can push the second portion B32 to move closer to the first portion B31 and flow through the gap between the second portion B32 and the first base 2111. In the second state, oil flowing from the first connection portion 110 can push the second portion B32 to move closer to the first portion B31 and flow through the gap between the second portion B32 and the first base 2111.

[0121] This application provides a valve device. By configuring the first movable member B3, which includes a first part B31 and a second part B32, the force required for the oil to push the second part B32 toward the first part B31 in the power-off state is less than the force required for the oil to push the second part B32 toward the first part B31 in the second state. The configuration of the first part B31 and the second part B32 enables the switching between the two states of the first movable member B3, which simplifies the number of components and improves the working efficiency of the valve device.

[0122] In some embodiments, the first movable member B3 further includes a second elastic member, the two ends of which are connected to the second part B32 and the first base 2111 respectively. In the power-off state and the second state, the second elastic member is in the recovery state. The oil flowing out from the first connection part 110 pushes the second part B32 to move closer to the first part B31 and compresses the second elastic member.

[0123] This application provides a valve device. By providing a second elastic element, when the oil is not flowing, the second part B32 can be pressed against the first base 2111 by the restoration of the second elastic element. The restoration of the second elastic element can quickly press the second part B32 against the first base 2111, thereby improving the response speed of the entire system and increasing its reliability.

[0124] In some embodiments, the first movable member B3 further includes a first elastic member, the two ends of which are connected to the first part B31 and the first base 2111, respectively. The first channel B2 is located at least in the first part B31. In the first state, the first elastic member is in the restored state. The oil flowing out from the first connection 110 passes through the first channel located in the first part B31 and pushes the first part B31 to move away from the second part B32 while compressing the first elastic member. The oil flows out from the gap between the first part B31 and the second part B32.

[0125] This application provides a valve device. By setting the first channel B2 at least in the first part, it is not necessary to set the first channel B2 in other positions of the valve device. Setting the first channel B2 in the first part B31 facilitates manufacturing. In addition, the setting of the first elastic element can improve the response speed to the oil pushing the first part B31 to move away from the second part B32, and has high reliability.

[0126] In some embodiments, the first base 2111 includes a first opening A1, the first switch assembly 2112 includes a first one-way member B1, and oil can flow from the first connection 110 through the first one-way member B1 and from the first opening A1 to the second connection 120.

[0127] The first one-way component B1 includes, but is not limited to, the structure of a one-way valve plate and a one-way valve.

[0128] This application provides a valve device in which the oil flows through the first one-way member B1 as described above, providing damping force for the flow of oil in the first inner cavity without consuming energy, thus reducing costs.

[0129] Please refer to Figures 9 to 12 As shown, in some embodiments, one end of the first one-way member B1 is connected to the first base 2111, and the other end is in contact with the first base 2111. The flow of oil can separate the other end of the first one-way member B1 from the first base 2111, and the oil flows from the gap between the first one-way member B1 and the first base 2111 to the first opening A1.

[0130] This application provides a valve device. By configuring the structure of the first one-way member B1, when oil flows from the first connecting part 110 through the first one-way member B1 and out of the first opening A1, the oil drives the first one-way member B1 to separate from the first base 2111. When the oil does not flow from the first connecting part 110 through the first one-way member B1 and out of the first opening A1, the first one-way member B1 contacts the first base 2111. The switching of the above states is easy to achieve.

[0131] Please refer to Figures 13 to 15 As shown, in some embodiments, the second damping valve section 212 includes a second base 2121 and a second switch assembly 2122. The second base 2121 is disposed on the base 100 and encloses a second inner cavity, which communicates with the first connecting portion 110 and the second connecting portion 120. The second switch assembly 2122 is installed in the second inner cavity and is adapted to adjust the damping of the oil flow in the second inner cavity.

[0132] This application provides a valve device that, through the arrangement of a second base 2121 and a second switch assembly 2122, can adjust the damping force of oil flowing in the second inner cavity by means of the second switch assembly 2122. The structure is simple and compact.

[0133] In some embodiments, the second switch assembly 2122 includes a second channel D2, the two ends of which are connected to the first connecting portion 110 and the second connecting portion 120. The second switch assembly 2122 includes a second movable member D3, which has an open state and a closed state. In the open state, the second movable member D3 is separated from the second base 2121, and oil can flow through the gap between the second movable member D3 and the second base 2121 to flow from the second connecting portion 120 to the first connecting portion 110. The damping coefficient of the second switch assembly 2122 is N3. In the closed state, the second movable member D3 is in contact with the second base 2121, and the damping coefficient of the second switch assembly 2122 is N4. Oil can flow through the second channel D2 to flow from the second connecting portion 120 to the first connecting portion 110. N3 is less than N4.

[0134] This application provides a valve device. With the above settings, the damping coefficient of the second switch assembly 2122 can be set, and the damping coefficient can be adjusted by the state of the second moving part D3, thereby enabling buffering of the vehicle 1 under different states and improving the shock resistance of the vehicle 1.

[0135] In some embodiments, the second switch assembly 2122 includes a second channel D2, the two ends of which are connected to the second connection portion 120 and the first connection portion 110. The second switch assembly 2122 includes a second movable member D3, and the second base 2121 includes a second opening A2. The second movable member D3 includes an energized state and an de-energized state. In the de-energized state, the oil flowing out of the second connection portion 120 reaches the second opening C1, and the damping force overcome by the oil is M4. The energized state includes a third state and a fourth state. In the third state, the oil flowing out of the second connection portion 120 flows through the second channel D2, and the damping force overcome by the oil is M5. In the fourth state, the oil flowing out of the second connection portion 120 reaches the second opening C1, and the damping force overcome by the oil is M6. M6 is greater than M5, and M5 is greater than M4.

[0136] This application provides a valve device that can adjust the damping force overcome by the oil by setting the state of the second movable part D3. If the oil flow rate is high, the second movable part D3 can be set to the energized state, which can effectively achieve the buffering effect. If the oil flow rate is low, the second movable part D3 can be set to the de-energized state, which can achieve the buffering effect and reduce energy consumption.

[0137] In some embodiments, the second movable member D3 includes: a third part D31, mounted on the second base 2121; and a fourth part D32, one end of which abuts against the second base 2121, and the other end of which abuts against the third part D31 and has a degree of freedom of movement relative to the third part D31. In the power-off state, the oil flowing out from the second connection 120 can push the fourth part D32 to move closer to the third part D31 and flow through the gap between the fourth part D32 and the second base 2121. In the fourth state, the oil flowing out from the second connection 120 can push the fourth part D32 to move closer to the third part D31 and flow through the gap between the fourth part D32 and the second base 2121.

[0138] This application provides a valve device. By configuring the second movable member D3, which includes a third part D31 and a fourth part D32, the force required for the oil to push the fourth part D32 towards the third part D31 in the de-energized state is less than the force required for the oil to push the fourth part D32 towards the third part D31 in the fourth state. The configuration of the third part D31 and the fourth part D32 enables the switching between the two states of the second movable member D3, which simplifies the number of components and improves the working efficiency of the valve device.

[0139] In some embodiments, the second movable member D3 further includes a third elastic member, the two ends of which are connected to the third part D31 and the second base 2121 respectively. The first channel is located at least in the third part D31. In the third state, the third elastic member is in the restored state. The oil flowing out from the second connection 120 passes through the first channel located in the third part D31 and pushes the third part D31 to move away from the fourth part D32 while compressing the third elastic member. The oil flows out from the gap between the third part D31 and the fourth part D32.

[0140] This application provides a valve device in which, by setting a third elastic element, the fourth part D32 can be abutted against the second base 2121 when the oil is not flowing. The restoration of the third elastic element can quickly abut the fourth part D32 against the second base, thereby improving the response speed of the entire system and increasing its reliability.

[0141] In some embodiments, the second base 2121 includes a second opening C1, the second switch assembly 2122 includes a second one-way member D1, and oil can flow from the second connection 120 through the second one-way member D1 and from the second opening C1 to the first connection 110.

[0142] This application provides a valve device in which the oil flow through the second one-way member D1 provides damping force and does not require energy consumption, thus reducing costs.

[0143] In some embodiments, one end of the second one-way member D1 is connected to the second base 2121, and the other end is in contact with the second base 2121. The flow of oil can separate the other end of the second one-way member D1 from the second base 2121, and the oil flows from the gap between the second one-way member D1 and the second base 2121 to the second opening C1.

[0144] This application provides a valve device. By configuring the structure of the second one-way member D1, when oil flows from the second connection 120 through the second one-way member D1 and out of the second opening C1, the oil drives the second one-way member D1 to separate from the second base 2121. When the oil does not flow from the second connection 120 through the second one-way member D1 and out of the second opening C1, the second one-way member D1 contacts the second base 2121. The switching of the above states is easy to achieve.

[0145] In some embodiments, the valve body assembly 200 further includes a first one-way valve portion 220 and a second one-way valve portion 230, wherein the first one-way valve portion 220 allows oil to flow from the first connection portion 110 to the second connection portion 120, and the second one-way valve portion 230 allows oil to flow from the second connection portion 120 to the first connection portion 110.

[0146] This application provides a valve device, in which the valve body assembly 200 further includes a first one-way valve portion 220 and a second one-way valve portion 230, which respectively allow oil to flow from the first connecting portion 110 to the second connecting portion 120 and from the second connecting portion 120 to the first connecting portion 110.

[0147] In some embodiments, a first check valve 220 is connected between a second damping valve 212 and a second connecting portion 120. The second damping valve 212 includes a second inlet end and a second outlet end. The second inlet end is connected to the first check valve 220, and the second outlet end is connected to the first damping valve 211. The first check valve 220 allows oil to flow unidirectionally from the first damping valve 211 to the second connecting portion 120.

[0148] This application provides a valve device. With the above-described configuration, the assembly and manufacturing process of the valve device can be simplified, and the structure of the valve device can be made more compact.

[0149] In some embodiments, the first one-way valve portion 220 includes a first connecting seat 221 and a first valve body 222. The first connecting seat 221 is connected between the second connecting portion 120 and the second inlet end, and the first connecting seat 221 is provided with a third opening; the first valve body 222 is capable of opening or closing the third opening.

[0150] This application provides a valve device in which the first one-way valve part 220 includes a first connecting seat 221 and a first valve body 222. When oil flows to the first valve body 222 and comes into contact with it, the third opening can be opened to allow the oil to flow smoothly and prevent backflow of oil.

[0151] In some embodiments, the second one-way valve section 230 is connected between the first damping valve section 211 and the first connecting seat 221. The first damping valve section 211 includes a first inlet end and a first outlet end. The first inlet end is connected to the second one-way valve section 230, and the first outlet end is connected to the second damping valve section 212. The first one-way valve section 220 allows oil to flow unidirectionally from the second damping valve section 212 to the first connecting seat 110.

[0152] This application provides a valve device. With the above-described configuration, the assembly and manufacturing process of the valve device can be simplified, and the structure of the valve device can be made more compact.

[0153] In some embodiments, the second one-way valve portion 230 includes a second connecting seat 231 and a second valve body 232. The second connecting seat 231 is connected between the first connecting portion 110 and the first inlet end, and the second connecting seat 231 is provided with a fourth opening; the second valve body 232 is capable of opening or closing the fourth opening.

[0154] This application provides a valve device in which the second one-way valve part 230 includes a second connecting seat 231 and a first valve body. When oil flows to and contacts the second valve body 232, the fourth opening can be opened to allow the oil to flow smoothly and prevent backflow of oil.

[0155] In some embodiments, the base 100 further includes a third connecting portion 130, one end of which can be connected to an energy storage device, and the other end of which communicates with the second one-way valve portion 230 and the first connecting portion 110.

[0156] This application provides a valve device. With the third connection part 130, when the oil flow rate and pressure inside the valve device are too high, some of the oil can flow into the accumulator, thereby protecting the first module.

[0157] In some embodiments, the base 100 further includes a fourth connecting portion 140, one end of which can be connected to a stiffness switching valve, and the other end of which communicates with the first one-way valve portion 220 and the second connecting portion 120.

[0158] This application provides a valve device. With the fourth connection part 140, when the oil flow rate and pressure inside the valve device are too high, some of the oil can flow into the stiffness switching valve, thereby protecting the second module.

[0159] This application provides a damping system including any of the valve devices described above.

[0160] This application provides a damping system. Through the above settings, the damping inside the damping system can be precisely controlled, thereby improving the reliability of the damping system.

[0161] In some embodiments, the damping system includes a first module and a second module. The first module is used for shock absorption; the second module is used for oil storage.

[0162] This application provides a damping system that ensures the integrity of the internal circuitry of the damping system through the configuration of a first module and a second module.

[0163] In some embodiments, the damping system includes an accumulator and a stiffness switching valve. The accumulator is used to buffer the oil flowing from the second module to the first module, and the stiffness switching valve is used to buffer the oil flowing from the first module to the second module.

[0164] This application provides a damping system that, through the installation of an accumulator and a stiffness conversion valve, can provide buffer protection for the damping system and reduce the probability of damage to the first and second modules of the damping system.

[0165] This application also provides a vehicle 1, which includes any of the above-described damping systems.

[0166] This application provides a vehicle 1, which, through the aforementioned damping system, improves the stability of the vehicle 1 during driving.

[0167] In some embodiments, vehicle 1 includes wheels 12 and body 11, body 11 is mounted on wheels 12, valve device is mounted on body 11, and body 11 is connected to wheels 12 via a first module.

[0168] This application provides a vehicle 1, which improves the stability of the vehicle body 11 during driving through the above-described configuration.

[0169] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A valve device, characterized in that, include: The base (100) includes a first connecting part (110) and a second connecting part (120), the first connecting part (110) being adapted to connect a first module and the second connecting part (120) being adapted to connect a second module; A valve body assembly (200) is disposed on the base (100), and the valve body assembly is capable of adjusting the damping coefficient of the oil flowing from the first connection (110) to the second connection (120) and from the second connection (120) to the first connection (110).

2. The valve device according to claim 1, characterized in that, The valve body assembly (200) includes a damping valve assembly (210) adapted to adjust the damping coefficient of oil flowing from the first connection (110) to the second connection (120) and to adjust the damping coefficient of oil flowing from the second connection (120) to the first connection (110).

3. The valve device according to claim 2, characterized in that, The damping valve assembly (210) includes a first damping valve section (211) and a second damping valve section (212). The first damping valve section (211) is adapted to adjust the damping coefficient of the oil flowing from the first connecting part (110) to the second connecting part (120), and the second damping valve section (212) is adapted to adjust the damping coefficient of the oil flowing from the second connecting part (120) to the first connecting part (110).

4. The valve device according to claim 3, characterized in that, The first damping valve section (211) includes: A first base (2111) is disposed on the base (100) and surrounds to form a first inner cavity, the first inner cavity being connected to the first connecting part (110) and the second connecting part (120); A first switching assembly (2112) is installed in the first inner cavity, and the first switching assembly (2112) is adapted to adjust the damping coefficient of the oil flow in the first inner cavity.

5. The valve device according to claim 4, characterized in that, The first switch assembly (2112) includes a first channel (B2), the two ends of which are connected to the first connecting portion (110) and the second connecting portion (120). The first switch assembly (2112) also includes a first movable member (B3). The first movable member (B3) includes an open state and a closed state. In the open state, the first movable member (B3) is separated from the first base (2111), and the oil can flow through the gap between the first movable member (B3) and the first base (2111) to flow from the first connecting part (110) to the second connecting part (120). The damping coefficient of the first switching assembly (2112) is N1. In the closed state, the first movable member (B3) is in contact with the first base (2111), and the damping coefficient of the first switching assembly (2112) is N2. The oil can flow through the first channel (B2) to flow from the first connecting part (110) to the second connecting part (120). N1 is less than N2.

6. The valve device according to claim 4, characterized in that, The first switch assembly (2112) includes a first channel (B2), the two ends of which are connected to the first connecting part (110) and the second connecting part (120). The first switch assembly (2112) includes a first movable member (B3), the first base (2111) includes a first opening (A1), and the first movable member (B3) includes an on-state and an off-state. In the power-off state, the oil flowing from the first connection (110) reaches the first opening (A1), and the damping force overcome by the oil is M1. The energized state includes a first state and a second state. In the first state, the oil flowing out from the first connection (110) flows through the first channel (B2), and the damping force overcome by the oil is M2. In the second state, the oil flowing out from the first connection (110) reaches the first opening (A1), and the damping force overcome by the oil is M3. M3 is greater than M2, and M2 is greater than M1.

7. The valve device according to claim 6, characterized in that, The first active component (B3) includes: The first part (B31) is installed on the first base (2111); The second part (B32) abuts against the first base (2111) at one end and against the first part (B31) at the other end, and has a degree of freedom of movement relative to the first part (B31). In the power-off state, the oil flowing out from the first connection part (110) can push the second part (B32) to move closer to the first part (B31) and flow through the gap between the second part (B32) and the first base (2111). In the second state, the oil flowing out from the first connection part (110) can push the second part (B32) to move closer to the first part (B31) and flow through the gap between the second part (B32) and the first base (2111).

8. The valve device according to claim 7, characterized in that, The first movable component (B3) further includes a second elastic component, the two ends of which are connected to the second part (B32) and the first base (2111), respectively. In the power-off state and the second state, the second elastic member is in the recovery state, and the oil flowing out from the first connection (110) pushes the second part (B32) to move closer to the first part (B31) and compresses the second elastic member.

9. The valve device according to claim 7, characterized in that, The first movable component (B3) further includes a first elastic component, the two ends of which are respectively connected to the first part (B31) and the first base (2111), and the first channel (B2) is located at least in the first part (B31). In the first state, the first elastic member is in the restored state, and the oil flowing out from the first connection (110) passes through the first channel located in the first part (B31) and pushes the first part (B31) to move away from the second part (B32) while compressing the first elastic member. The oil flows out from the gap between the first part (B31) and the second part (B32).

10. The valve device according to claim 4, characterized in that, The first base (2111) includes a first opening (A1), and the first switch assembly (2112) includes a first one-way member (B1), wherein the oil can flow from the first connection (110) through the first one-way member (B1) and from the first opening (A1) to the second connection (120).

11. The valve device according to claim 10, characterized in that, One end of the first one-way component (B1) is connected to the first base (2111), and the other end is in contact with the first base (2111). The flow of the oil can separate the other end of the first one-way component (B1) from the first base (2111), and the oil flows from the gap between the first one-way component (B1) and the first base (2111) to the first opening (A1).

12. The valve device according to claim 3, characterized in that, The second damping valve section (212) includes: The second base (2121) is disposed on the base (100) and surrounds to form a second inner cavity, the second inner cavity communicating with the first connecting part (110) and the second connecting part (120); A second switching assembly (2122) is installed in the second inner cavity, and the second switching assembly (2122) is adapted to adjust the damping coefficient of the oil flow in the second inner cavity.

13. The valve device according to claim 12, characterized in that, The second switch assembly (2122) includes a second channel (D2), the two ends of which are connected to the first connecting part (110) and the second connecting part (120). The second switch assembly (2122) also includes a second movable member (D3). The second movable member (D3) includes an open state and a closed state. In the open state, the second movable member (D3) is separated from the second base (2121), and the oil can flow through the gap between the second movable member (D3) and the second base (2121) to flow from the second connecting part (120) to the first connecting part (110). The damping coefficient of the second switching assembly (2122) is N3. In the closed state, the second movable member (D3) is in contact with the second base (2121), and the damping coefficient of the second switching assembly (2122) is N4. The oil can flow through the second channel (D2) to flow from the second connecting part (120) to the first connecting part (110). N3 is less than N4.

14. The valve device according to claim 12, characterized in that, The second switch assembly (2122) includes a second channel (D2), the two ends of which communicate with the second connecting part (120) and the first connecting part (110). The second switch assembly (2122) includes a second movable member (D3), and the second base (2121) includes a second opening (A2). The second movable part (D3) includes an energized state and an de-energized state. In the de-energized state, the oil flowing out from the second connection (120) reaches the second opening (C1), and the damping force overcome by the oil is M4. The energized state includes a third state and a fourth state. In the third state, the oil flowing out from the second connection (120) flows through the second channel (D2), and the damping force overcome by the oil is M5. In the fourth state, the oil flowing out from the second connection (120) reaches the second opening (C1), and the damping force overcome by the oil is M6. M6 is greater than M5, and M5 is greater than M4.

15. The valve device according to claim 14, characterized in that, The second active component (D3) includes: The third part (D31) is installed on the second base (2121); The fourth part (D32) abuts against the second base (2121) at one end and against the third part (D31) at the other end, and has a degree of freedom of movement relative to the third part (D31). In the power-off state, the oil flowing out from the second connection (120) can push the fourth part (D32) to move closer to the third part (D31) and flow through the gap between the fourth part (D32) and the second base (2121). In the fourth state, the oil flowing out from the second connection (120) can push the fourth part (D32) to move closer to the third part (D31) and flow through the gap between the fourth part (D32) and the second base (2121).

16. The valve device according to claim 15, characterized in that, The second movable component (D3) further includes a fourth elastic component, the two ends of which are connected to the fourth part (D32) and the second base (2121), respectively. In the power-off state and the fourth state, the fourth elastic element is in the recovery state, and the oil flowing out from the second connection (120) pushes the fourth part (D32) to move closer to the third part (D31) and compresses the fourth elastic element.

17. The valve device according to claim 16, characterized in that, The second movable component (D3) further includes a third elastic component, the two ends of which are connected to the third part (D31) and the second base (2121) respectively, and the second channel (D2) is located at least in the third part (D31). In the third state, the third elastic member is in the restored state, and the oil flowing out from the second connection (120) passes through the first channel located in the third part (D31) and pushes the third part (D31) to move away from the fourth part (D32) while compressing the third elastic member. The oil flows out from the gap between the third part (D31) and the fourth part (D32).

18. The valve device according to claim 12, characterized in that, The second base (2121) includes a second opening (C1), and the second switch assembly (2122) includes a second one-way member (D1), through which the oil can flow from the second connection (120) via the second one-way member (D1) and from the second opening (C1) to the first connection (110).

19. The valve device according to claim 18, characterized in that, One end of the second one-way member (D1) is connected to the second base (2121), and the other end is in contact with the second base (2121). The flow of the oil allows the other end of the second one-way member (D1) to separate from the second base (2121), and the oil flows from the gap between the second one-way member (D1) and the second base (2121) to the second opening (C1).

20. The valve device according to claim 3, characterized in that, The valve body assembly (200) further includes a first one-way valve section (220) and a second one-way valve section (230), wherein the first one-way valve section (220) allows oil to flow from the first connection section (110) to the second connection section (120), and the second one-way valve section (230) allows oil to flow from the second connection section (120) to the first connection section (110).

21. The valve device according to claim 20, characterized in that, The first one-way valve (220) is connected between the second damping valve (212) and the second connecting part (120). The second damping valve (212) includes a second inlet end and a second outlet end. The second inlet end is connected to the first one-way valve (220), and the second outlet end is connected to the first damping valve (211). The first one-way valve (220) allows oil to flow unidirectionally from the first damping valve (211) to the second connecting part (120).

22. The valve device according to claim 21, characterized in that, The first one-way valve section (220) includes: The first connecting seat (221) is connected between the second connecting part (120) and the second inlet end, and the first connecting seat (221) is provided with a third opening; A first valve body (222) is capable of opening or closing the third opening.

23. The valve device according to claim 20, characterized in that, The second one-way valve (230) is connected between the first damping valve (211) and the first connecting seat (221). The first damping valve (211) includes a first inlet end and a first outlet end. The first inlet end is connected to the second one-way valve (230), and the first outlet end is connected to the second damping valve (212). The first one-way valve (220) allows oil to flow unidirectionally from the second damping valve (212) to the first connecting seat (110).

24. The valve device according to claim 3, characterized in that, The second one-way valve section (230) includes: The second connecting seat (231) is connected between the first connecting part (110) and the first inlet end, and the second connecting seat (231) is provided with a fourth opening; The second valve body (232) is capable of opening or closing the fourth opening.

25. The valve device according to claim 20, characterized in that, The base (100) also includes a third connecting part (130), one end of which can be connected to the energy storage device, and the other end communicates with the second one-way valve part (230) and the first connecting part (110).

26. The valve device according to claim 20, characterized in that, The base (100) further includes a fourth connecting part (140), one end of which can be connected to the stiffness conversion valve, and the other end communicates with the first one-way valve part (220) and the second connecting part (120).

27. A damping system, characterized in that, The valve device includes any one of claims 1 to 26.

28. The damping system according to claim 27, characterized in that, The damping system includes: The first module is used for shock absorption; The second module is used for oil storage.

29. The damping system according to claim 27, characterized in that, The damping system includes: An accumulator is used to buffer the oil flowing from the second module to the first module; A stiffness switching valve is used to buffer the oil flowing from the first module to the second module.

30. A vehicle (1), characterized in that, The damping system includes any one of claims 27 to 29.

31. The vehicle (1) according to claim 30, characterized in that, The vehicle (1) includes: Wheel (12); The vehicle body (11) is mounted on the wheel (12), the valve device is mounted on the vehicle body (11), and the vehicle body is connected to the wheel (12) through the first module.

Images