Damping valve device, shock absorber and vehicle

Abstract

The embodiment of the utility model provides a damping valve device, a shock absorber and a vehicle. The damping valve device comprises an electromagnetic valve assembly and a base valve assembly. The base valve assembly is a mechanical valve, and the electromagnetic valve assembly and the base valve assembly are arranged in the axial direction and connected with each other. The basic valve assembly comprises a first fluid channel and a second fluid channel, an outlet of the first fluid channel and an outlet of the second fluid channel are located on the first side and the second side, opposite to each other, of the basic valve assembly respectively in the axial direction, and the first side of the basic valve assembly is closer to the electromagnetic valve assembly than the second side of the basic valve assembly. An outlet of the first circulation channel communicates with a circulation channel of a main valve of the electromagnetic valve assembly through the space, and a first valve plate is arranged at an outlet of the second circulation channel. According to the embodiment of the utility model, the size of the damping valve in the axial direction can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of shock absorber, more particularly to a damping valve device, a shock absorber comprising the damping valve device and a vehicle. BACKGROUND

[0002] In the automotive suspension system, the damping valve device is one of the key components, mainly used for controlling the flow of liquid in the shock absorber, thereby adjusting the damping force of the suspension during vehicle driving, improving driving comfort and handling stability. The working principle of the damping valve is usually based on the flow rate and pressure change of the liquid passing through the valve port to generate damping force, effectively absorbing the impact and vibration brought by the road surface, reducing the shaking of the vehicle body. In recent years, with the improvement of driving performance and comfort requirements, various variable damping valve devices have been gradually applied, such as electric control damping valve, double flow passage structure, etc., in order to automatically adjust the damping force according to different road conditions and driving states, providing a more stable driving experience for passengers. In addition, with the development of intelligent driving technology, the response speed, accuracy and adaptability of the damping valve system have also become the focus of research and development. SUMMARY

[0003] According to the embodiments of the utility model, a damping valve device, a shock absorber comprising the damping valve device and a vehicle comprising the shock absorber are provided.

[0004] According to an aspect of the utility model, the damping valve device provided comprises: an electromagnetic valve assembly and a basic valve assembly, wherein the electromagnetic valve assembly comprises an electromagnetic actuator, a pilot valve and a main valve, the electromagnetic actuator is configured to control the movement of the pilot valve, and the pilot valve is configured to control the opening and closing degree of the main valve, the basic valve assembly is a mechanical valve, the electromagnetic valve assembly and the basic valve assembly are arranged in the axial direction and connected to each other, the basic valve assembly comprises a first fluid passage and a second fluid passage, the outlet of the first fluid passage and the outlet of the second fluid passage are located on the first side and the second side of the basic valve assembly respectively, the first side of the basic valve assembly is closer to the electromagnetic valve assembly than the second side of the basic valve assembly, the outlet of the first fluid passage is communicated with the flow passage of the main valve of the electromagnetic valve assembly through a space, and a first valve plate is arranged at the outlet of the second fluid passage.

[0005] In some embodiments according to the utility model, no valve plate is arranged between the outlet of the first fluid passage and the inlet of the flow passage of the main valve of the electromagnetic valve assembly.

[0006] In some embodiments according to the utility model, the electromagnetic valve assembly comprises a normally open valve controlled by the electromagnetic actuator.

[0007] In some embodiments according to the utility model, the base valve assembly comprises a base valve seat, the first flow passage and the second flow passage are arranged in the base valve seat, and the base valve seat is connected with the electromagnetic valve assembly.

[0008] In some embodiments according to the utility model, on the second side of the base valve assembly, the base valve seat comprises a recess, one end of the electromagnetic valve assembly close to the base valve assembly comprises a protrusion, and the protrusion is embedded into the recess to connect the base valve assembly and the electromagnetic valve assembly with each other.

[0009] In some embodiments according to the utility model, the inner side wall of the recess and the outer side wall of the protrusion are attached to each other, and a sealing member is arranged between the inner side wall and the outer side wall.

[0010] In some embodiments according to the utility model, the top surface of the protrusion of the electromagnetic valve assembly and the bottom surface of the recess of the base valve assembly are spaced from each other to form a space between the protrusion and the recess, which connects the outlet of the first flow passage and the flow passage of the main valve of the electromagnetic valve assembly.

[0011] In some embodiments according to the utility model, the flow passage of the main valve of the electromagnetic valve assembly comprises an inlet on the top surface of the protrusion, and the outlet of the first flow passage is on the bottom surface of the recess.

[0012] In some embodiments according to the utility model, a second valve plate is arranged in the middle of the flow passage of the main valve.

[0013] In some embodiments according to the utility model, the base valve seat comprises an annular wall around the recess on the first side of the base valve assembly, the annular wall protrudes from the base valve seat towards the electromagnetic valve assembly, the flow passage of the main valve of the electromagnetic valve assembly comprises a first axial part extending along the axial direction and a second axial part extending along the axial direction and a connecting part connecting the first axial part and the second axial part, the first axial part is located on the inner side of the annular wall, the second axial part is located on the outer side of the annular wall, the opening of the first axial part close to the base valve assembly is the inlet of the flow passage of the main valve, the opening of the second axial part close to the base valve assembly is the outlet of the flow passage of the main valve, and the end of the first axial part away from the base valve assembly and the end of the second axial part away from the base valve assembly are communicated through the connecting part.

[0014] In some embodiments according to the present application, the main valve includes a main valve seat, a sliding member, and a main valve sleeve, the main valve seat and the sliding member are arranged along the axial direction and are both disposed in the main valve sleeve, the main valve seat is located on the side of the sliding member close to the base valve assembly. The pilot valve is configured to control the movement of the sliding member in the axial direction to control the size of the gap between the sliding member and the main valve seat for fluid flow, the gap being at least part of the connecting portion.

[0015] In some embodiments according to the present application, the main valve seat includes a first seat portion close to the sliding member and a second seat portion close to the base valve assembly, the second seat portion is a convex portion of the electromagnetic valve assembly, and the size of the first seat portion in the radial direction perpendicular to the axial direction is greater than the size of the second seat portion in the radial direction perpendicular to the axial direction, the side of the first seat portion close to the sliding member is provided with a groove, and the size of the groove in the axial direction is smaller than the size of the first seat portion in the axial direction.

[0016] In some embodiments according to the present application, the first axial portion of the flow passage of the main valve of the electromagnetic valve assembly penetrates the second seat portion and extends to the groove in the first seat portion, and the main valve further includes a second valve plate located in the groove, the second valve plate covers the opening of the first axial portion close to the sliding member.

[0017] In some embodiments according to the present application, the second axial portion of the flow passage of the main valve of the electromagnetic valve assembly penetrates the first seat portion and is located in the part of the first seat portion protruding in the radial direction from the second seat portion.

[0018] In some embodiments according to the present application, the main valve further includes an elastic member configured to apply pressure to the second valve plate.

[0019] In some embodiments according to the present application, the elastic member includes two spring elements nested with each other, and the elastic coefficients of the two spring elements are different from each other.

[0020] In some embodiments according to the present application, the main valve sleeve extends from the side of the sliding valve member to the side of the first seat portion, and the end of the main valve sleeve close to the base valve assembly includes a bending portion bent towards the central axis of the first seat portion, and the bending portion is located on the side of the first seat portion away from the sliding member.

[0021] In some embodiments according to the utility model, the inner wall of the main valve sleeve is provided with a first step structure, one end of the first valve seat part close to the sliding member abuts against the first step structure, and the first step structure and the bending part jointly fix the first valve seat part in the axial direction.

[0022] In some embodiments according to the utility model, the electromagnetic valve assembly further comprises an electromagnetic valve sleeve, the electromagnetic actuator is arranged in the electromagnetic valve sleeve, and the main valve sleeve is partially nested in the electromagnetic valve sleeve.

[0023] In some embodiments according to the utility model, a second step structure is arranged on the inner wall of the electromagnetic valve sleeve, one end of the main valve sleeve close to the electromagnetic actuator abuts against the second step structure to fix the main valve sleeve and the electromagnetic valve sleeve to each other in the axial direction.

[0024] In some embodiments according to the utility model, the end of the electromagnetic valve sleeve close to the basic valve assembly is located on the side of the main valve seat away from the basic valve assembly in the axial direction, and the two are spaced from each other in the axial direction.

[0025] According to another aspect of the utility model, the provided shock absorber comprises the damping valve device according to any one of the embodiments of the utility model.

[0026] According to still another aspect of the utility model, the provided vehicle comprises the shock absorber according to any one of the embodiments of the utility model.

[0027] The embodiments of the utility model are based on the demand of the automobile suspension system shock absorber for the bidirectional conduction electromagnetic damping valve device, the ingenious integration design is carried out to each requirement of the damping valve device, the reduction of the damping valve device volume, the simplification of the manufacturing process and the platform of each part are realized on the basis of the optimization of the damping adjustment performance, and the cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a cross section structure schematic view of a basic valve and a connecting member connected with the basic valve.

[0029] Figure 2 It is an interface structure schematic view of a damping valve device according to the embodiments of the utility model.

[0030] Reference numerals: 100 - base valve assembly; 200 - electromagnetic valve assembly; 110 - base valve seat; 111 - first flow passage; 1110 - outlet of the first flow passage; 112 - second flow passage; 113 - recess; 114 - annular wall; 121 - first valve piece; 210 - electromagnetic actuator; 220 - pilot valve; 230 - main valve; 231 - main valve seat; 2311 - first valve seat part; 2312 - second valve seat part; 2313 - second valve piece; 2314 - groove; 232 - fluid passage; 2321 - first axial part; 2322 - second axial part; 2323 - connecting part; 233 - main valve sleeve; 2331 - bent part; 234 - sliding member; 235 - elastic member; 240 - sealing member. DETAILED DESCRIPTION

[0031] To more fully set forth the technical idea and specific implementation mode of the utility model, the structure, operation process and possible technical effects of the utility model are described below by exemplary embodiments in combination with the drawings. The embodiments of the utility model involve improvements and innovations in several technical fields, and the applicability of the schemes provided on this basis is extensive in different scenarios, which can be implemented independently or combined with other technical schemes. The utility model is not limited to the specific embodiments described, and in actual applications, the skilled person can make various appropriate adjustments without deviating from the spirit of the utility model.

[0032] The electromagnetic valve plays a key role in the damping valve system, mainly used for accurately adjusting the size of damping force or controlling the opening and closing state of damping effect. Through electromagnetic induction, the electromagnetic valve uses the magnetic field generated by the electromagnetic coil to control the flow of fluid (such as hydraulic oil or gas). When the electromagnetic valve receives a control signal, a magnetic field is generated in the coil and drives the valve core to move, thereby realizing the adjustment of the opening and closing of the fluid passage, or accurately controlling the size of the fluid passage.

[0033] In automobile suspension systems, the damping force needs to be adjusted in both directions under different road conditions and working conditions to improve driving comfort and vehicle stability. Therefore, the application of electromagnetic damping valve devices with bidirectional conduction function becomes increasingly important. For bidirectional electromagnetic damping valves, their functions are more diversified, and they can effectively adjust the damping force when fluid flows in both directions. Bidirectional electromagnetic damping valves achieve damping adjustment of positive and reverse fluid passages through independent control in both directions. This bidirectional adjustment mechanism enables the damping valve system to adapt to different flow requirements, improve system stability and response speed, and quickly adjust the damping effect to adapt to changes in working conditions when needed. However, existing bidirectional electromagnetic damping valve designs often have complex structures, which not only increase production difficulty and cost, but also increase the overall volume due to the large number of internal components, which is not conducive to the miniaturization design of electromagnetic damping valve devices. In addition, since the existing devices need to achieve precise bidirectional fluid control in a limited space, they also pose higher challenges to manufacturing precision and assembly requirements, further increasing manufacturing costs.

[0034] To reduce the complexity and cost of bidirectional damping valves, a combination of one-way electromagnetic damping valves and basic mechanical valves can be used to achieve similar bidirectional conduction effects through the cooperation of multiple electromagnetic valves. Although this combination method reduces the design complexity of bidirectional electromagnetic damping valves to some extent, it brings new technical problems in application. First, the basic mechanical valve usually has fluid inlets and outlets on both sides and is equipped with valve plates to control the one-way flow of fluid. This design requires precise positioning of the combination of the electromagnetic damping valve and the basic mechanical valve to avoid fluid interference or functional conflicts. For example, if the electromagnetic damping valve channel is not designed properly, it may cause conflicts between the outlet of the basic valve and the inlet of the electromagnetic valve, reducing the fluid control accuracy and affecting the overall performance of the shock absorber. Specifically, the existing basic mechanical valve has valve plates on both sides, one of which controls the one-way flow of fluid to the first side and prevents reverse flow, and the other controls the second side in a similar manner. This design requires high precision for the connection part. If not properly designed, it is likely to cause unnecessary communication or interference between the electromagnetic valve channel and the fluid inlet and outlet of the basic valve, causing deviations in fluid flow direction and speed, and thus affecting the damping effect. Therefore, in order to solve these interference problems, special connecting structures must be added to the design to coordinate the fluid channels of each part.

[0035] However, the addition of such a connection structure has multiple negative effects. First, the additional connection element increases the number of parts of the device, leading to increased design and production costs. Second, the connection structure increases the length of the overall device in the axial direction, making the entire valve body less compact than an integrated bidirectional damping valve. This is a significant disadvantage in automotive suspension systems, which require small and lightweight equipment.

[0036] The utility model's utility model design has found that, at present, when realizing bidirectional electromagnetic damping function faces following main technical problem: design complexity and cost rise: electromagnetic damping valve and basic valve combination design brings additional connection structure, this increases the number of parts, promotes overall manufacturing cost, and increases assembly complexity;Axial dimension increases: the addition of connection structure leads to the lengthening of the overall device in the axial direction, which is not conducive to the suspension system with limited space;Fluid passage interference: due to the different design of the fluid passages on both sides of the basic mechanical valve, if the connection structure is not designed reasonably, the fluid flow will be disturbed, affecting the accuracy of the damping effect;Precision requirement improves: the existing mechanical valve plate design has higher requirements for one-way control of fluid, and after being combined with the electromagnetic valve, it relies more on high-precision manufacturing, further increasing the production difficulty.

[0037] In view of these problems, the utility model provides an electromagnetic damping valve device structure that can flow in both directions, making it more concise in structure, lower in cost, and capable of realizing bidirectional damping adjustment in a compact size, significantly improving the product's applicability and market competitiveness.

[0038] As described above, the mechanical valve as the basic valve includes two direction flow channels in the axial direction. Figure 1 It is the partial cross-sectional structure of the electromagnetic damping valve with a basic valve. In order to more clearly show the specific structure of the basic valve and the connection structure with the electromagnetic valve, these parts are highlighted and the other parts of the electromagnetic valve are omitted. Figure 1 The part framed by the double-dot line in the middle is the basic valve 10. The basic valve 10 includes a valve seat 11 and a fluid passage formed in the valve seat. As shown in the figure, the basic valve 10 includes a valve seat 11 and a fluid passage 12 formed in the valve seat. Figure 1As shown, the valve seat 11 includes a first fluid passage 21, a second fluid passage 22 and a third fluid passage 23. The first fluid passage 21 and the second fluid passage 22 pass through the valve seat 11 from the axial direction (up and down direction in the drawing) of the valve seat 11. The third fluid passage 23 has its two ends open at the side surface of the valve seat 11 and the bottom surface of the valve seat 11, respectively. The base valve 10 further includes a first valve plate 31 and a second valve plate 32 located at the upper side and the lower side of the valve seat 11, respectively. The first valve plate 31 covers the outlets of the first fluid passage 21 and the second fluid passage 22 at the upper side, and when fluid with pressure flows from the lower side of the valve seat 11 to the upper side of the valve seat 11 through the first fluid passage 21 and the second fluid passage 22, the first valve plate 31 is pushed open and the fluid flows out from the outlets of the first fluid passage 21 and the second fluid passage 22, as indicated by the arrows. Of course, the first valve plate 31 here can also be a separate valve plate structure covering the outlets of the first fluid passage 21 and the second fluid passage 22, respectively. Since the first valve plate 31 covers the outlets of the valve seat 11 at the upper side to allow fluid to flow from the lower side to the upper side and prevent fluid from flowing in the opposite direction, fluid cannot flow from the upper side to the lower side through the first fluid passage 21 or the second fluid passage 22. As for the third fluid passage 23, one end of which is open at the side surface of the valve seat 11 and the other end is open at the lower side of the valve seat 11, the second valve plate 32 is located at the lower side of the valve seat 11 and covers the outlet of the third fluid passage 23 at the lower side of the valve seat 11. As indicated by the arrows through the third fluid passage 23, fluid with pressure enters the third fluid passage 23 from the side surface of the valve seat 11, pushes open the second valve plate 32 at the lower side of the valve seat 11 and then flows out from the outlet of the third fluid passage 23. Similarly, the second valve plate 32 prevents fluid from entering the third fluid passage 23 from the lower side of the valve seat 11. Through the first fluid passage 21, the second fluid passage 22 and the third fluid passage 23 described above, the base valve 10 can achieve control of fluid flow in both upward and downward directions.

[0039] As Figure 1As shown, in order to realize the combination of the base valve 10 and the electromagnetic valve, the damping valve device further comprises a connecting seat 40. The connecting seat 40 is generally a cylindrical structure, and the lower half of the cylindrical structure comprises a part with a larger inner diameter and is sleeved on the protruding part of the base valve 10. The protruding part of the base valve 10 comprises the valve rod 12 penetrating through the valve seat 11 and other structures sleeved on the valve rod 12, which will not be described here. The part with a larger diameter of the connecting seat 40 provides a cavity to accommodate the protruding part of the base valve 10. More importantly, the lower end edge of the connecting seat 40 abuts against the base valve 11, and at least a part of the cylindrical wall of the connecting seat 40 is located between the first flow passage 21 and the second flow passage 22. The first flow passage 21 is connected to the flow passage of the electromagnetic valve above through the space in the cylinder of the connecting seat, and the second flow passage 22 is connected to the outside of the electromagnetic valve. The cylindrical wall of the connecting seat 40 separates the first flow passage 21 and the second flow passage 22. Therefore, the fluid flowing through the first flow passage 21 is further controlled by the electromagnetic valve, and the second flow passage 22 is connected to the outside of the electromagnetic valve and is used as a safety valve to ensure the flow of fluid when the electromagnetic valve fails. For the connecting seat 40, on the one hand, it needs to be located radially between the first flow passage 21 and the second flow passage 22, and on the other hand, it needs to have a certain height in the axial direction to accommodate the protruding part of the valve seat and not to interfere with the normal function of the respective flow passages of the base valve. Therefore, the connecting seat 40 needs to have a large size in both the axial and radial directions, so that the overall assembled damping valve device including the base valve has a large size. In addition, as shown, in order to realize the connection between the connecting seat 40 and the base valve 10 without affecting the respective functions, a plurality of other connecting components need to be adaptively arranged between the connecting seat 40 and the base valve 11, thereby not only increasing the complexity of the design of the parts, increasing the cost, but also making the entire assembly process of the damping valve device more complex. Figure 1

[0040] The at least one embodiment of the utility model provides a damping valve device. The damping valve device comprises an electromagnetic valve assembly and a base valve assembly. The electromagnetic valve assembly comprises an electromagnetic actuator, a pilot valve and a main valve, wherein the electromagnetic actuator is configured to control the movement of the pilot valve, and the pilot valve is configured to control the opening and closing degree of the main valve. The base valve assembly is a mechanical valve, and the electromagnetic valve assembly and the base valve assembly are arranged in an axial direction and connected to each other. The base valve comprises a first fluid passage and a second fluid passage, and the outlet of the first fluid passage and the outlet of the second fluid passage are located on the first side and the second side opposite to each other in the axial direction of the base valve respectively. The first side of the base valve assembly is closer to the electromagnetic valve assembly than the second side of the base valve assembly, the outlet of the first flow passage is communicated with the flow passage of the main valve of the electromagnetic valve assembly through a space, and a first valve plate is arranged at the outlet of the second flow passage.

[0041] ​In embodiments of the present invention, a channel for bidirectional fluid flow is provided in the base valve assembly, providing a foundation for bidirectional fluid flow throughout the damping valve device. However, embodiments of the present invention do not use a simple combination of a typical base valve assembly and a solenoid valve assembly. Instead, they adapt the base valve assembly and the solenoid valve assembly to the fluid control methods required by the shock absorbers in automotive suspension systems. This reduces the manufacturing difficulty of each component, allowing for platform-based fabrication and simplifying the assembly process. For example, since the fluid inlet of the solenoid valve assembly and the fluid outlet of the base valve assembly located on the first side are spatially connected, instead of using a valve plate to control the flow channel in the base valve assembly towards the solenoid valve assembly, there is no need to consider the height matching relationship at the connection point. This greatly simplifies the connection structure, saving costs and reducing the axial dimension of the overall damping valve device. Furthermore, this design facilitates platform-based production of each part of the damping valve device, significantly improving production efficiency and reducing costs. It should be noted that the fluid inlet of the solenoid valve assembly and the fluid outlet on the first side of the basic valve assembly are spatially connected. This is to comprehensively consider the overall effectiveness of the damping valve device formed by combining the solenoid valve assembly and the basic valve assembly. Although the flow channel in the basic valve assembly that flows toward the solenoid valve assembly is spatially connected to the inlet of the fluid channel of the solenoid valve assembly, the connected fluid channel formed by this connection can be controlled by the main valve in the solenoid valve assembly, thereby maintaining or optimizing the control effect of the fluid channel in this direction on the fluid.

[0042] The embodiments of this utility model will be described in more detail below with reference to some specific implementation methods, so that the technical solution and corresponding technical advantages of this utility model will be more obvious and clear.

[0043] Figure 2 This is a schematic cross-sectional view of a damping valve device according to an embodiment of the present invention. Figure 2 As shown, the damping valve device includes a solenoid valve assembly 200 and a base valve assembly 100. The solenoid valve assembly 200 includes a solenoid actuator 210, a pilot valve 220, and a main valve 230. The solenoid actuator 210 is configured to control the movement of the pilot valve 220, and the pilot valve 220 is configured to control the opening and closing degree of the main valve 230. For example, the base valve assembly 100 is a mechanical valve. The solenoid valve assembly 200 and the base valve assembly 100 are axially connected and in fluid communication with each other.

[0044] The base valve assembly 100 includes a first fluid passage 111 and a second fluid passage 112, and the outlet 1110 of the first fluid passage 111 and the outlet of the second fluid passage 112 are located on the first side and the second side of the base valve assembly 100 respectively, which are opposite to each other in the axial direction of the base valve assembly 100, and the first side of the base valve assembly 100 is closer to the electromagnetic valve assembly 200 than the second side of the base valve assembly 100. For example, the two fluid passages of the base valve assembly 100, i.e. the first fluid passage 111 and the second fluid passage 112, are respectively used for the fluid flow in the upward and downward directions shown in the figure.

[0045] The outlet of the first flow passage 111 is communicated with the flow passage of the main valve 230 of the electromagnetic valve assembly 200 through a space, and the first valve plate 121 is arranged at the outlet of the second flow passage 112. For example, as shown in the figure, the first side of the base valve assembly 100 is the upper side of the base valve assembly, and the second side of the base valve assembly 100 is the lower side of the base valve assembly. The upper side of the base valve assembly 100 is connected with the electromagnetic valve assembly 200. Figure 2

[0046] For example, for the flow passage of the main valve 230 of the electromagnetic valve assembly 200, Figure 2 According to an embodiment of the present application, as shown in the figure, the flow passage of the main valve 230 of the electromagnetic valve assembly 200 is communicated with the first flow passage 111 of the base valve assembly 100 through a space, and the second flow passage 112 of the base valve assembly 100 is arranged at the outlet of the main valve 230 of the electromagnetic valve assembly 200. Figure 2 The curved arrow in the figure shows the flow direction of the fluid. The implementation of the flow passage will be described in more detail in the following embodiments. However, the damping valve device according to the embodiment of the present application is not limited to this form of flow passage, and can be changed or replaced according to the actual application requirements.

[0047] For example, the outlet 1110 of the first flow passage 111 is communicated with the flow passage of the main valve 230 of the electromagnetic valve assembly 200 through a space, which means that the outlet 1110 of the first flow passage 111 is connected with the flow passage of the main valve 230 of the electromagnetic valve assembly 200 through a connecting passage with a certain space, without additionally arranging other components for controlling the fluid flow. For example, in some embodiments, no valve plate is arranged between the outlet 1110 of the first flow passage 111 of the base valve assembly 100 and the inlet of the flow passage of the main valve 230 of the electromagnetic valve assembly. As described above, since no valve plate is arranged at the outlet 1110 of the first flow passage 111 of the base valve assembly 100, the height matching relationship of the valve structure at this position does not need to be considered when connecting the electromagnetic valve assembly and the base valve assembly, so that the design freedom of the connection mode between the electromagnetic valve assembly 200 and the base valve assembly 100 is larger, the connection structure can be simplified, and the axial size of the whole damping valve device is reduced.

[0048] ​In some embodiments of the present invention, the solenoid valve assembly 200 includes a normally open valve controlled by an electromagnetic actuator. For example, a valve structure directly or indirectly controlled by an electromagnetic actuator is a normally open valve. A normally open valve (NO Valve) is a type of valve that is in an "open" state when no power is applied or no control signal is applied. This means that in the default state, fluid can freely pass through the valve, but when a control signal (such as an electrical signal or pressure signal) is received, the valve closes to prevent fluid from passing through. In a solenoid valve assembly, the normally open valve is generally controlled by an electromagnetic coil. When the coil is de-energized, the valve core remains in the "normally open" position, allowing fluid flow; when the coil is energized, the valve core is attracted and moved to the "closed" position, preventing fluid from passing through. To avoid the solenoid valve assembly failing to open under abnormal conditions, a safety flow channel is usually provided in the base valve, the fluid flow direction of which is consistent with the fluid flow direction of the solenoid valve, for example, in... Figure 1 The second flow channel 22 in the structure shown is a safety channel. By setting the solenoid valve assembly 200 as a normally open valve, the safety channel can be omitted in the basic valve assembly 100, thereby further simplifying the structure of the damping valve device. The valve structure of the solenoid valve assembly will be described in more detail in subsequent embodiments, but the embodiments according to this utility model are not limited to this. Figure 2 The solenoid valve structure shown is illustrated.

[0049] In some examples according to the present invention, the base valve assembly 100 includes a base valve seat 110, a first flow channel 111 and a second flow channel 112 disposed within the base valve seat 110, and the base valve seat 110 is connected to the solenoid valve assembly 200.

[0050] In some examples according to this utility model, on the first side of the base valve assembly 100 (i.e., Figure 2The bottom surface of the protrusion 2312 of the electromagnetic valve assembly 200 and the top surface of the recess 113 of the base valve assembly 100 are spaced apart from each other to form a space between the protrusion 2312 and the recess 113, which connects the outlet 1110 of the first flow passage 111 and the flow passage of the main valve 230 of the electromagnetic valve assembly 200. The size of the space can be set according to actual conditions, and the embodiments of the present application are not particularly limited.

[0051] For example, the inner side wall of the recess 113 of the base valve seat 110 and the outer side wall of the protrusion 2312 of the electromagnetic valve assembly 200 are in contact with each other, and a sealing member 240 is arranged therebetween. The sealing member can seal the space for connecting the flow passage of the electromagnetic valve assembly 200 and the first flow passage 111 of the base valve assembly 100, so as to prevent fluid leakage.

[0052] In some embodiments according to the present application, the top surface of the protrusion 2312 of the electromagnetic valve assembly 200 (the lower surface of the protrusion 2312 shown in the figure) and the bottom surface of the recess 113 of the base valve assembly 100 are spaced apart from each other to form a space between the protrusion 2312 and the recess 113, which connects the outlet 1110 of the first flow passage 111 and the flow passage of the main valve 230 of the electromagnetic valve assembly 200. The size of the space can be set according to actual conditions, and the embodiments of the present application are not particularly limited. Figure 2

[0053] For example, the flow passage of the main valve of the electromagnetic valve assembly 200 includes an inlet on the top surface of the protrusion 2312, and the outlet 1110 of the first flow passage 111 is located on the bottom surface of the recess 113. By arranging the inlet and the outlet in this way, the two flow passages can be connected through the space.

[0054] For example, a second valve plate 2313 is arranged in the middle of the flow passage of the main valve 230 to control the flow of fluid in the flow passage. It should be noted that, Figure 2 ​The second valve plate 2313 shown in the middle is arranged on the bottom surface of the groove of the main valve seat 231 (which will be described in more detail in subsequent embodiments), but according to embodiments of the present application, the second valve plate 2313 for controlling the damping size of the fluid in the fluid passage can be arranged at any other suitable position.

[0055] As shown in the middle, Figure 2 According to some embodiments of the present application, the base valve seat 110 includes an annular wall 114 around the recess 113 on the first side of the base valve assembly 100. The annular wall 114 protrudes from the base valve seat 110 in the direction of the electromagnetic valve assembly 200. The flow passage of the main valve 230 of the electromagnetic valve assembly 200 includes a first axial portion 2321 extending in an axial direction and a second axial portion 2322 extending in the axial direction, and a connecting portion 2323 connecting the first axial portion 2321 and the second axial portion 2322. For example, the annular wall 114 can be integrally formed with the base valve seat 110, but embodiments of the present application are not limited thereto.

[0056] As shown in the middle, Figure 2 The first axial portion 2321 is located inside the annular wall 114, and the second axial portion 2322 is located outside the annular wall 114. The opening of the first axial portion 2321 close to the base valve assembly 100 is the inlet of the flow passage of the main valve 230, and the opening of the second axial portion 2322 close to the base valve assembly 100 is the outlet of the flow passage of the main valve 230. The end of the first axial portion 2321 away from the base valve assembly 100 and the end of the second axial portion 2322 away from the base valve assembly 100 are connected by the connecting portion 2323. Therefore, the above-mentioned various portions of the main valve 230 are connected to each other so that the fluid can flow from the inlet of the fluid passage of the main valve and flow out from the outlet of the fluid passage of the main valve, and the second valve plate 2313 is arranged therebetween to control the fluid flow in the flow passage.

[0057] It should be noted that although the first axial portion 2321 extending in the axial direction and the second axial portion 2322 extending in the axial direction are described, it is not limited to the extension direction of the first axial portion 2321 being strictly parallel to the axial direction and the extension direction of the second axial portion 2322 being strictly parallel to the axial direction, one or both of the extension direction of the first axial portion 2321 and the extension direction of the second axial portion 2322 can be arranged obliquely relative to the axial direction, for example, having a non-zero included angle with the axial direction.

[0058] According to some embodiments of the present application, the main valve 230 includes a main valve seat 231, a sliding member 234, and a main valve sleeve 233. The axial directions of the main valve seat 231, the sliding member 234, and the main valve sleeve 233 are consistent. The main valve seat 231 and the sliding member 234 are arranged along the axial direction and are both disposed within the main valve sleeve 233.

[0059] For example, as shown in FIG. 1, the pilot valve is configured to control the movement of the sliding member 234 in the axial direction to control the size of the gap between the sliding member 234 and the main valve seat 231 for fluid flow, which is at least part of the connection portion. The size of the gap directly reflects the control exerted by the electromagnetic actuator through the pilot valve and then through the sliding member, thereby controlling the size of the damping force. For example, the normally open valve described above is the valve structure directly or indirectly controlled by the electromagnetic actuator described herein. Figure 2 For example, the main valve seat 231 includes a first valve seat portion 2311 close to the sliding member 234 and a second valve seat portion 2312 close to the base valve assembly 100, the second valve seat portion 2312 being the convex portion 2312 of the electromagnetic valve assembly 200, and the size of the first valve seat portion 2311 in the radial direction perpendicular to the axial direction is greater than the size of the second valve seat portion 2312 in the radial direction perpendicular to the axial direction. That is, the radial size of the first valve seat portion 2311 is greater than the radial size of the second valve seat portion 2312. The side of the first valve seat portion 2311 close to the sliding member 234 is provided with a groove 2314, and the size of the groove 2314 in the axial direction is less than the size of the first valve seat portion 2311 in the axial direction. Therefore, the groove is provided in the first valve seat portion 2311 and does not extend into the second valve seat portion 2312.

[0060] In some embodiments, the first axial portion 2321 of the flow passage of the main valve 230 of the electromagnetic valve assembly 100 penetrates the second valve seat portion 2312 and extends into the groove 2314 in the first valve seat portion 2311, and the main valve 230 further includes a second valve plate 2313 located in the groove 2314, the second valve plate 2313 covering the opening of the first axial portion 2321 close to the sliding member 234. For example, the second valve plate 2313 here can be positioned by the inner wall of the groove 2314 in the transverse direction (i.e., the radial direction), and the second valve plate 2314 can be guided in the axial direction by the inner wall of the groove 2313.

[0061] For example, the second axial portion 2322 of the flow passage of the main valve 230 of the electromagnetic valve assembly 200 penetrates the first valve seat portion 2311 and is located in the portion of the first valve seat portion 2311 protruding in the radial direction from the second valve seat portion 2312. As shown in FIG. 1, the second axial portion 2322 of the flow passage of the main valve 230 of the electromagnetic valve assembly 200 is located in the portion of the first valve seat portion 2311 protruding in the radial direction from the second valve seat portion 2312.

[0062] Figure 2 ​As shown, the second axial portion 2322 extends through the second valve seat portion 2311, and its lower opening faces the portion of the base valve seat 110 of the base valve assembly 100 located outside the annular wall 114. Furthermore, due to the support of the annular wall 114 for the main valve 230 of the solenoid valve assembly 100, the lower opening of the second axial portion 2312 is spaced apart from the base valve seat 110, thereby allowing the fluid flowing out of the main valve 230 to be smoothly discharged outside the damping valve device.

[0063] like Figure 2 As shown, the main valve 230 also includes an elastic member 235 configured to apply pressure to the second valve plate 2313. For example, the lower end of the elastic member 235 abuts against the second valve plate 235 to apply pressure to the second valve plate 235, and the upper end of the second valve plate 235 abuts against a flange fixed on a fixed shaft on the main valve seat 231. It should be noted that this is only an example, and the arrangement of the second valve plate 2313 and the elastic member 235 can be adjusted and changed according to actual needs. Thus, the second valve plate 235, in conjunction with the first axial portion covering its opening as a partial flow passage, forms a valve structure. This valve structure can compensate for the lack of a valve plate structure in the first flow passage of the basic valve assembly, thus improving the control of the fluid. It also offers advantages such as reducing the overall axial size of the damping valve and facilitating the platform production and assembly of various components.

[0064] For example, such as Figure 2As shown, the elastic member 235 includes two nested spring elements with different spring coefficients (stiffnesses). Specifically, the elastic member 235 includes a first spring on the outer side and a second spring nested within it, with different spring coefficients. This combination of two springs with different spring coefficients provides a nonlinear composite stiffness, resulting in a unique composite damping effect. When fluid passes through the valve plate, the valve plate is displaced by the alternating pressure of the fluid. The damping force provided by the spring combination varies with the frequency and displacement amplitude of the valve plate: when the fluid force is small or the frequency is low, the softer spring plays a dominant role, allowing the valve plate to respond more smoothly to changes in fluid pressure; when the fluid force increases or the frequency rises, the more rigid spring gradually takes effect, suppressing the displacement amplitude of the valve plate and preventing excessive vibration. This gradual stiffness adjustment achieves dynamic damping control. Furthermore, the springs with different spring coefficients can also dynamically adjust the resistance and response speed of the fluid valve plate's movement, achieving a vibration reduction effect. When the fluid pressure changes instantaneously, the composite force of the two springs prevents the valve plate from vibrating significantly. For example, a flexible spring quickly absorbs some of the kinetic energy in the initial stage of fluid pressure fluctuations, reducing the acceleration of the valve plate. A more rigid spring generates strong damping when the valve plate moves with a large amplitude, further suppressing the vibration amplitude. This combination allows the valve plate to gradually return to rest, avoiding repeated vibrations, thereby achieving a vibration reduction effect.

[0065] In some embodiments, such as Figure 2 As shown, the main valve sleeve 233 extends from the side of the sliding valve member 234 to the side of the first valve seat portion 2311 of the main valve seat 231, and the end of the main valve sleeve 231 near the base valve assembly 100 includes a bent portion 2331 that bends toward the central axis of the first valve seat portion 2311. The bent portion 2331 is located on the side of the first valve seat portion 2311 away from the sliding member 234 (i.e., the side facing the base valve assembly 100).

[0066] like Figure 2 As shown, by configuring the main valve sleeve to accommodate both the main valve seat and the sliding component, the bent portion of the main valve sleeve restricts the axial position of the main valve seat. The main valve sleeve is designed to accommodate both the main valve seat and the sliding component, and is fixed by riveting the lower bent portion (that is, the bent portion at the lower end of the main valve sleeve can be formed by riveting the lower edge of the main valve sleeve). This ensures precise axial positioning of the main valve seat and automatically absorbs axial errors from the upper components during assembly. This design avoids additional error adjustment mechanisms, simplifies the assembly process, improves production line efficiency, and reduces the defect rate. The bent structure of the main valve sleeve, while fixing the components, increases assembly stability, making the overall structure of the main valve more compact and durable, effectively extending its service life.

[0067] For example, the inner wall of the main valve sleeve 233 is provided with a first step structure 2332, and the end of the first valve seat portion 2311 near the sliding member 234 abuts against the first step structure 2332. Therefore, the first step structure 2332 and the bending portion 2331 together fix the first valve seat portion 2322 in the axial direction.

[0068] In some embodiments, the solenoid valve assembly 200 further includes a solenoid valve sleeve 211, in which an electromagnetic actuator 210 is disposed, and a main valve sleeve 233 is partially nested within the solenoid valve sleeve 211.

[0069] For example, a second step structure 2111 is provided on the inner wall of the solenoid valve sleeve 211, and the end of the main valve sleeve 233 near the electromagnetic actuator 210 abuts against the second step structure 2111 so that the main valve sleeve 233 and the solenoid valve sleeve 211 are fixed to each other in the axial direction.

[0070] For example, the end of the solenoid valve sleeve 211 near the base valve assembly 100 is located axially on the side of the main valve seat 231 away from the base valve assembly 100, and the two are spaced apart from each other in the axial direction. As described above, after the other components of the main valve are accommodated or positioned by the main valve sleeve 233 designed as above, it is no longer necessary for the solenoid valve sleeve to extend further down to position these components. Therefore, the axial dimension of the solenoid valve sleeve can be designed to be smaller.

[0071] like Figure 2 As shown, a pilot valve 220 and an electromagnetic actuator 210 are also arranged above the main valve 230. The electromagnetic actuator may include a coil, an iron core, a moving iron plate, a spring, and a housing. When the coil is energized, the iron core increases the magnetic field strength, transmitting the magnetic force to the moving iron plate, causing it to move accordingly, thereby driving the pilot valve. When the power is off, the spring applies a restoring force to the moving iron plate, returning it to its initial position, ensuring the dynamic responsiveness and stability of the valve. The housing provides mechanical support and protection for these components, preventing contamination, moisture, and external impacts from interfering with the internal components. The electromagnetic actuator can precisely adjust the opening and closing of the valve and the fluid damping effect by controlling the electrical signal, thereby achieving precise control of flow or pressure. It should be noted that this is only an example, and the specific design may vary depending on different application requirements.

[0072] It should be noted that the "axial direction" mentioned in the embodiments of this utility model refers to the axial direction of each cylindrical or cylindrical component. Unless otherwise specified, the "outer side" and "inner side" refer to the outer and inner sides in the radial direction, that is, the outer and inner positions in the direction perpendicular to the axial direction.

[0073] The fluid flow direction through the damper valve device according to the embodiments of the present application is briefly introduced as follows. The fluid flow through the damper valve device includes two main paths. The first main path includes entering from the lower end opening (inlet) of the first flow passage of the base valve assembly, flowing along the Figure 2 the space between the convex part of the electromagnetic valve assembly and the concave part of the base valve seat in the direction of the arrow shown in the figure, entering the flow passage of the main valve of the electromagnetic valve assembly, i.e. entering the first axial part, then passing through the adjustment of the second valve plate, passing through the connecting part (the connecting part includes the gap between the sliding member indirectly controlled by the electromagnetic actuator and the main valve seat), flowing to the second axial part, and then flowing out to the outside of the damper valve device through the opening of the second axial part. In this path, in addition to the adjustment of the second valve plate to the damping force, the sliding member is also included to adjust the gap between the sliding member and the main valve seat, and the sliding member is controlled in position or movement by the pilot valve, so as to realize the control of the opening and closing degree of the main valve by the pilot valve. In this path, part of the fluid can also enter the pilot valve through the channel in the sliding member, as shown by the arrow, and then flow into the second axial part through the channel in the main valve sleeve and be discharged from the second axial part. Therefore, the fluid passage connecting the pilot valve and the second axial part is also arranged in the main valve sleeve. The second flow path is entirely inside the base valve assembly, i.e. the second fluid passage of the base valve assembly. The fluid enters the second fluid passage through the opening on the side surface of the base valve seat of the second fluid passage, and then is discharged through the opening on the bottom surface of the base valve seat of the second fluid passage, and when the fluid is discharged, it is controlled by the first valve plate.

[0074] The above is described according to some embodiments of the present application, but different obvious variations can be made based on the teaching of the present application, which should still be included in the scope covered by the present application. It should be further explained that the inventor of the present application has ingeniously integrated and designed each requirement of the damper valve device based on the demand of the bidirectional conduction electromagnetic damper valve device for the automobile suspension system shock absorber, and on the basis of optimizing the damping adjustment performance, the size of the damper valve device is also reduced, the manufacturing process is simplified, each part is platformized, and the cost is reduced.

[0075] Some other embodiments of the utility model also provide a shock absorber, the shock absorber includes the damping valve device of any embodiment as described above. For example, the shock absorber can include two or more damping valve devices, so that the fluid of different flow paths can be controlled to be suitable for active or semi-active suspension systems. Other components and structures of the shock absorber and the connection relationship between other components and structures and the damping valve device can adopt any known manner, which will not be repeated here. Since the shock absorber according to the embodiments of the utility model adopts the damper device according to the embodiments of the utility model, the shock absorber according to the embodiments of the utility model also has the technical effects and advantages described above.

[0076] Some other embodiments of the utility model also provide a vehicle, including the shock absorber according to any embodiment of the utility model.

[0077] It should be noted that the specific embodiments of the utility model are only provided to illustrate the principles and technical features of the utility model, and do not constitute a limitation on the utility model. Those skilled in the art can make various modifications and improvements to the specific embodiments within the spirit and scope of the utility model. In particular, for different application scenarios and implementation requirements, the specific structure can be reasonably adjusted to adapt to the actual requirements without deviating from the essential content of the utility model. Therefore, all equivalent replacements or improvements made within the core idea of the utility model should be considered to belong to the protection scope of the utility model.

Claims

1. A damper valve device, characterized by, The application relates to a solenoid valve assembly and a base valve assembly, wherein the solenoid valve assembly comprises an electromagnetic actuator, a pilot valve and a main valve, the electromagnetic actuator is configured to control the movement of the pilot valve, and the pilot valve is configured to control the opening and closing degree of the main valve, the base valve assembly is a mechanical valve, the solenoid valve assembly and the base valve assembly are arranged in an axial direction and connected to each other, The base valve assembly comprises a first fluid passage and a second fluid passage, the outlet of the first fluid passage and the outlet of the second fluid passage are respectively located on the first side and the second side of the base valve assembly opposite to each other in the axial direction, the first side of the base valve assembly is closer to the solenoid valve assembly than the second side of the base valve assembly, the outlet of the first fluid passage is communicated with the fluid passage of the main valve of the solenoid valve assembly through a space, and a first valve plate is arranged at the outlet of the second fluid passage. No valve plate is arranged between the outlet of the first fluid passage and the inlet of the fluid passage of the main valve of the solenoid valve assembly.

2. The damping valve device according to claim 1, characterized in that The solenoid valve assembly comprises a normally open valve controlled by the electromagnetic actuator.

3. The orifice valve device of claim 1, wherein, The base valve assembly comprises a base valve seat, the first fluid passage and the second fluid passage are arranged in the base valve seat, and the base valve seat is connected to the solenoid valve assembly.

4. The damper valve device according to any one of claims 1 to 3, characterized in that On the first side of the base valve assembly, the base valve seat comprises a recess, one end of the solenoid valve assembly close to the base valve assembly comprises a protrusion, the protrusion is embedded into the recess, so that the base valve assembly and the solenoid valve assembly are connected to each other, 5. The damping valve device according to claim 4, characterized in that The inner side wall of the recess and the outer side wall of the protrusion are attached to each other, and a sealing member is arranged between the inner side wall of the recess and the outer side wall of the protrusion. The top surface of the protrusion of the solenoid valve assembly and the bottom surface of the recess of the base valve seat are spaced from each other, so as to form the space connecting the outlet of the first fluid passage and the fluid passage of the main valve of the solenoid valve assembly between the protrusion and the recess.

6. The orifice valve device of claim 5, wherein, The fluid passage of the main valve of the solenoid valve assembly comprises an inlet located on the top surface of the protrusion, and the outlet of the first fluid passage is located on the bottom surface of the recess.

7. The orifice valve device of claim 5, wherein, A second valve plate is arranged in the middle of the fluid passage of the main valve.

8. The damper valve device according to any one of claims 1 to 3, characterized in that The base valve seat comprises an annular wall surrounding the recess on the first side of the base valve assembly, the annular wall protrudes from the base valve seat towards the solenoid valve assembly, the fluid passage of the main valve of the solenoid valve assembly comprises a first axial part extending in the axial direction, a second axial part extending in the axial direction and a connecting part connecting the first axial part and the second axial part, 9. The orifice valve device of claim 5, wherein, The first axial part is located on the inner side of the annular wall, the second axial part is located on the outer side of the annular wall, the opening of the first axial part close to the base valve assembly is the inlet of the fluid passage of the main valve, the opening of the second axial part close to the base valve assembly is the outlet of the fluid passage of the main valve, and the end of the first axial part away from the base valve assembly and the end of the second axial part away from the base valve assembly are communicated through the connecting part. ​ 10. The orifice valve device of claim 9, wherein, The main valve includes a main valve seat, a sliding member, and a main valve sleeve, the main valve seat and the sliding member are arranged along the axial direction and are both arranged in the main valve sleeve, the main valve seat is located on the side of the sliding member close to the base valve assembly, The pilot valve is configured to control the movement of the sliding member in the axial direction to control the size of the gap between the sliding member and the main valve seat for fluid flow, and the gap is at least part of the connecting portion.

11. The orifice valve device of claim 10, wherein, The main valve seat includes a first seat part close to the sliding member and a second seat part close to the base valve assembly, the second seat part is a convex part of the electromagnetic valve assembly, and the size of the first seat part in the radial direction perpendicular to the axial direction is greater than the size of the second seat part in the radial direction perpendicular to the axial direction, the side of the first seat part close to the sliding member is provided with a groove, and the size of the groove in the axial direction is smaller than the size of the first seat part in the axial direction.

12. The orifice valve device of claim 11, wherein, The first axial part of the flow passage of the main valve of the electromagnetic valve assembly penetrates the second seat part and extends to the groove in the first seat part, the main valve further includes a second valve piece located in the groove, the second valve piece covers the opening of the first axial part close to the sliding member, and the main valve further includes an elastic member configured to apply pressure to the second valve piece.

13. The orifice valve device of claim 12, wherein, The elastic member includes two spring elements nested with each other, and the elastic coefficients of the two spring elements are different from each other.

14. The damped valve device of claim 12, wherein, The second axial part of the flow passage of the main valve of the electromagnetic valve assembly penetrates the first seat part and is located in the part of the first seat part protruding in the radial direction from the second seat part.

15. The orifice valve device of claim 10, wherein, The main valve sleeve extends from the side of the sliding valve to the side of the first seat part, and the end of the main valve sleeve close to the base valve assembly includes a bending part bending towards the central axis of the first seat part, and the bending part is located on the side of the first seat part away from the sliding member.

16. The orifice valve device of claim 15, wherein, The inner wall of the main valve sleeve is provided with a first step structure, and the end of the first seat part close to the sliding member abuts against the first step structure, and the first step structure and the bending part jointly fix the first seat part in the axial direction.

17. The orifice valve device of claim 10, wherein, The electromagnetic valve assembly further includes an electromagnetic valve sleeve, the electromagnetic actuator is arranged in the electromagnetic valve sleeve, and the main valve sleeve is partially nested in the electromagnetic valve sleeve, The inner wall of the electromagnetic valve sleeve is provided with a second step structure, and the end of the main valve sleeve close to the electromagnetic actuator abuts against the second step structure to fix the main valve sleeve and the electromagnetic valve sleeve to each other in the axial direction.

18. The orifice valve device of claim 17, wherein, The end of the electromagnetic valve sleeve close to the base valve assembly is located on the side of the main valve seat away from the base valve assembly in the axial direction, and the two are spaced apart from each other in the axial direction.

19. A shock absorber characterized by The damping valve device includes the damping valve device according to any one of claims 1 to 18.

20. A vehicle characterized by The shock absorber includes the shock absorber according to claim 19.

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