Valve structure, air suspension system and vehicle
The valve structure, with its dual elastic element design, solves the problem of impact loss caused by valve core movement, achieving rapid response and buffering effect, and extending component life.
Patent Information
- Application Number
- CN202423190955.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-20
AI Technical Summary
The valve core experiences impacts during movement, leading to component wear and fatigue.
The design employs a dual-elastic element system, where the first and second elastic elements work together to provide buffering and driving force during valve opening and closing, respectively, thereby improving response speed and reducing impact force.
It improves the opening and closing response speed of the valve structure, alleviates the wear and tear of the valve core and fixed components, and extends the service life of the elastic components.
Smart Images
Figure CN223662580U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of electronic technology, and more particularly to a valve structure, an air suspension system, and a vehicle. Background Technology
[0002] In valve structures, the valve port is typically opened or closed by controlling the movement of the internal valve core. When the valve core moves into position, it generates an impact. Frequent and repeated impacts can lead to component wear and fatigue. Utility Model Content
[0003] This application provides a valve structure, an air suspension system, and a vehicle to alleviate wear and fatigue problems caused by valve core movement.
[0004] To achieve the above objectives, according to a first aspect of this application, a valve structure is provided, comprising:
[0005] A fixing assembly having a chamber and a first opening communicating with the chamber;
[0006] A valve core is disposed in the chamber and is movable between a first position and a second position. The valve core closes the first opening when it is in the first position and opens the first opening when it is in the second position.
[0007] A first elastic element is disposed at one end of the valve core and provides a first elastic force toward the first position to the valve core;
[0008] A second elastic element is disposed at the other end of the valve core and provides a second elastic force to the valve core toward the second position.
[0009] Optionally, the valve structure further includes: a drive mechanism that provides a driving force to the valve core toward the second position; wherein the first elastic force is greater than the second elastic force, and the sum of the driving force and the second elastic force is greater than the first elastic force.
[0010] Optionally, the fixing component further includes a second opening and a third opening;
[0011] When the valve core is in the first position, the second opening is opened so that the second opening and the third opening communicate through the chamber;
[0012] When the valve core is in the second position, it closes the second opening, so that the first opening and the third opening communicate through the chamber.
[0013] Optionally, the first opening is disposed opposite to the second opening, and the third opening is disposed on the same side as the first opening or the second opening;
[0014] The valve core includes a first end face and a second end face, the first end face facing the first opening and the second end face facing the second opening.
[0015] Optionally, the valve core is provided with a first flow channel so that the third opening communicates with the first opening or the second opening on the opposite side.
[0016] Optionally, the valve core includes a first part, a second part, and a third part connected in sequence, with the first end face located in the first part, the second end face located in the third part, and a stepped surface formed between the outer peripheral surface of the second part and the outer peripheral surface of the third part, and the first flow channel extending from the second end face to the stepped surface.
[0017] Optionally, the outer peripheral surface of the first part is a conical surface, the larger end of the conical surface is connected to the first end face, and the smaller end of the conical surface is connected to the outer peripheral surface of the second part.
[0018] Optionally, the stepped surface surrounds the second portion.
[0019] Optionally, the third part is provided with a plurality of first flow channels, which are arranged at circumferential intervals along the third part.
[0020] Optionally, the first end face includes a first central region and a first edge region, the first edge region surrounds the first central region, the second elastic member abuts against the first edge region, and the first opening corresponds to the first central region.
[0021] Optionally, the first central region protrudes toward the first opening relative to the first edge region.
[0022] Optionally, the second end face includes a second central region and a second edge region, the second edge region surrounds the second central region, the first elastic member abuts against the second edge region, and the second opening corresponds to the second central region.
[0023] Optionally, the second central region protrudes toward the second opening relative to the second edge region.
[0024] Optionally, the valve structure further includes a first seal and a second seal, wherein the first seal is disposed on the first end face and corresponds to the first opening position, and the second seal is disposed on the second end face and corresponds to the second opening position.
[0025] Optionally, the first end face is provided with a first groove for accommodating the first seal, and the second end face is provided with a second groove for accommodating the second seal; both the bottom surfaces of the first groove and the second groove are provided with buffer portions.
[0026] Optionally, the inner wall of the chamber is provided with a protrusion, and the first opening is disposed on the protrusion.
[0027] Optionally, the driving mechanism includes a stationary iron core and an electromagnetic coil. The stationary iron core is disposed in the chamber and located at one end of the valve core. The electromagnetic coil is sleeved on the outside of the stationary iron core, and provides the driving force when the electromagnetic coil is energized.
[0028] Optionally, the stationary iron core is provided with a second flow channel, one end of the second flow channel is provided corresponding to the second opening, and the other end of the first flow channel is provided corresponding to the valve core;
[0029] When the valve core is in the second position, it closes the other end of the first flow channel to close the second opening.
[0030] Optionally, the stationary iron core includes a third end face facing the valve core, and the other end of the first flow channel is located on the third end face;
[0031] The third end face is provided with a first annular groove surrounding the first flow channel, and the second end face is provided with a first annular protrusion. When the valve core is in the second position, the first annular protrusion cooperates with the first annular groove.
[0032] Optionally, the fixing assembly includes a valve seat, a housing, and a valve body, wherein the valve seat is connected to the housing to form the chamber, one end of the valve body is connected to the inner wall of the valve seat, and the other end of the valve body extends to the housing to cover the connection position between the valve seat and the housing;
[0033] The first opening is provided in the valve seat, the valve body is provided with a guide channel, and the valve core is movably fitted into the guide channel.
[0034] Optionally, the fixing assembly further includes a third seal and a fourth seal, the third seal being disposed at the connection position between the valve seat and the housing, and the fourth seal being disposed between the inner wall of the valve seat and the outer peripheral surface of the valve body.
[0035] According to a second aspect of this application, an air suspension system is provided, comprising an air pump and a valve structure as described in any one of the first aspects, wherein the air pump supplies air through the valve structure.
[0036] According to a third aspect of this application, a vehicle is also provided, including the air suspension system described in the second aspect.
[0037] In the valve structure of this application embodiment, during the valve opening process, the second elastic force provided by the second elastic element drives the valve core to quickly leave the first opening and move towards the second position, improving the valve opening response speed. Simultaneously, the deformation of the first elastic element increases, and the first elastic force generated by the first elastic element increases, thus buffering the impact force generated when the valve core moves to the second position. During the valve closing process, the first elastic force provided by the first elastic element drives the valve core to move rapidly towards the first opening, improving the valve closing response speed. Simultaneously, the deformation of the second elastic element increases, and the second elastic force generated by the second elastic element increases, thus buffering the impact force generated when the valve core moves to the first position. Therefore, the technical solution provided by this application can improve the valve opening and closing response speed, buffer the valve core impact force, alleviate the wear and tear on components such as the valve core and fixing components, and extend the service life of the elastic element.
[0038] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description
[0039] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the 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.
[0040] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.
[0041] Figure 1 This is a schematic diagram of the valve core in the first position in a valve structure provided in one embodiment of this application;
[0042] Figure 2 This is a schematic diagram of the valve core in the second position in a valve structure provided in one embodiment of this application;
[0043] Figure 3 This is a schematic diagram showing the positional relationship between the first opening, the second opening, and the third opening provided in another embodiment of this application;
[0044] Figure 4 This is a schematic diagram showing the positional relationship of the first opening, the second opening, and the third opening provided in another embodiment of this application;
[0045] Figure 5 This is a schematic diagram of the external structure of the valve core provided in one embodiment of this application;
[0046] Figure 6 This is a schematic diagram of the internal structure of the valve core provided in one embodiment of this application;
[0047] Figure 7 This is a schematic diagram of the first end face structure of the valve core provided in one embodiment of this application;
[0048] Figure 8 This is a schematic diagram of the second end face structure of the valve core provided in one embodiment of this application;
[0049] Figure 9 yes Figure 1 An enlarged schematic diagram of part A in the middle;
[0050] Figure 10 yes Figure 1 Enlarged schematic diagram of part B in the middle;
[0051] Figure 11 This is a schematic diagram of the structure of the first and second sealing elements provided in one embodiment of this application;
[0052] Figure 12 This is a schematic diagram of the external structure of the stationary iron core provided in one embodiment of this application;
[0053] Figure 13 This is a schematic diagram of the internal structure of the stationary iron core provided in one embodiment of this application;
[0054] Figure 14 This is a three-dimensional structural schematic diagram of a stationary iron core provided in one embodiment of this application;
[0055] Figure 15 yes Figure 2 An enlarged schematic diagram of section C;
[0056] Figure 16 This is a three-dimensional structural schematic diagram of the valve seat provided in one embodiment of this application;
[0057] Figure 17 This is a top view of a valve seat provided in one embodiment of this application;
[0058] Figure 18 yes Figure 17 FF cross-section;
[0059] Figure 19 This is a three-dimensional structural diagram of the valve body provided in one embodiment of this application;
[0060] Figure 20 This is a front view schematic diagram of the valve body provided in one embodiment of this application;
[0061] Figure 21 yes Figure 20 GG cross-section diagram.
[0062] Explanation of reference numerals in the attached figures:
[0063] 1. Fixed components,
[0064] 11. Valve seat; 111. First opening; 112. Third opening; 113. Protrusion; 114. Receiving groove; 1141. Reinforcing rib; 115. First annular sealing groove.
[0065] 12. Shell; 121. Second opening;
[0066] 13. Valve body; 131. Guide channel; 132. Second annular sealing groove.
[0067] 14. Chamber,
[0068] 2. Valve core; 21. First part; 211. First end face; 2111. First central region; 2112. First edge region; 2113. First groove; 212. Conical surface.
[0069] 22. Part Two
[0070] 23. Third part; 231. Second end face; 2311. Second central region; 2312. Second edge region; 2313. Second groove; 2314. First annular protrusion; 232. Stepped surface; 233. First flow channel.
[0071] 24. Buffer section
[0072] 3. First elastic element; 4. Second elastic element;
[0073] 5. Drive mechanism; 51. Stationary iron core; 511. Second flow channel; 512. Third end face; 5121. First annular groove; 52. Electromagnetic coil.
[0074] 61. First seal; 62. Second seal; 63. Strip groove.
[0075] 71. Third seal; 72. Fourth seal. Detailed Implementation
[0076] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.
[0077] like Figure 1 As shown, this application provides a valve structure including a fixing component 1, a valve core 2, a first elastic element 3, and a second elastic element 4.
[0078] The fixing assembly 1 is a structure used to install the various functional components of the valve structure. The fixing assembly 1 is provided with a chamber 14 and a first opening 111, which communicates with the chamber 14 and is used to input or output fluid medium into or out of the chamber 14.
[0079] The valve core 2 is movably disposed within the chamber 14 to move between a first position and a second position. For example... Figure 1 As shown, valve core 2 closes the first opening 111 when in the first position. Figure 2 As shown, valve core 2 opens the first opening 111 when in the second position.
[0080] The first elastic element 3 provides a first elastic force to the valve core 2 toward a first position, and the second elastic element 4 provides a second elastic force to the valve core 2 toward a second position. The first elastic element 3 and the second elastic element 4 provided in this embodiment can be either a support spring or a tension spring.
[0081] In this embodiment, during the valve opening process, the second elastic force provided by the second elastic element 4 drives the valve core 2 to quickly move away from the first opening 111 and toward the second position, improving the valve opening response speed. Simultaneously, the deformation of the first elastic element 3 increases, and the first elastic force generated by the first elastic element 3 increases, thus buffering the impact force generated when the valve core 2 moves to the second position. During the valve closing process, the first elastic force provided by the first elastic element 3 drives the valve core 2 to move rapidly toward the first opening 111, improving the valve closing response speed. Simultaneously, the deformation of the second elastic element 4 increases, and the second elastic force generated by the second elastic element 4 increases, thus buffering the impact force generated when the valve core 2 moves to the first position. Therefore, the technical solution provided by this application can improve the valve opening and closing response speed of the valve structure, buffer the impact force of the valve core 2, alleviate the wear and tear of components such as the valve core 2 and the fixing assembly 1, and extend the service life of the elastic element.
[0082] In some embodiments, the valve structure further includes a drive mechanism 5, which provides a driving force to the valve core 2 toward the second position, wherein the first elastic force is greater than the second elastic force, and the sum of the driving force and the second elastic force is greater than the first elastic force.
[0083] When the drive mechanism 5 is not in operation, the valve core 2 is subjected to a first elastic force and a second elastic force. Since the first elastic force is greater than the second elastic force, the valve core 2 remains in the first position to close the valve. When the drive mechanism 5 is working, the driving force acts on the valve core 2. Under the action of the driving force and the second elastic force, the valve core 2 overcomes the first elastic force and moves towards the second position to open the valve. With the above settings, the drive mechanism 5 only needs to provide a small driving force to open the valve. The drive mechanism 5 consumes less power, and generally speaking, the drive mechanism 5 with lower power is also smaller in size. The valve structure provided in this embodiment can be applied to equipment with limited installation space, optimizing space layout and making the equipment smaller and more compact.
[0084] In some embodiments, such as Figure 1 and Figure 2 As shown, the fixing component 1 is also provided with a second opening 121 and a third opening 112. When the valve core 2 is in the first position, the second opening 121 is opened so that the second opening 121 and the third opening 112 are connected through the chamber 14; when the valve core 2 is in the second position, the second opening 121 is closed so that the first opening 111 and the third opening 112 are connected through the chamber 14.
[0085] The first opening 111, the second opening 121, and the third opening 112 are all used to input or output fluid media into or out of the chamber 14.
[0086] As an example, the first opening 111 and the second opening 121 are used to discharge fluid medium outwards, and the third opening 112 is used to input fluid medium into the chamber 14. Thus, when the valve core 2 is in the first position, the first opening 111 is closed, and the second opening 121 and the third opening 112 are open. The medium enters the chamber 14 through the third opening 112 and flows out through the second opening 121. When the valve core 2 is in the second position, the second opening 121 is closed, and the first opening 111 and the third opening 112 are open. The medium enters the chamber 14 through the third opening 112 and flows out through the first opening 111. In other words, the movement of the valve core 2 in the first and second positions can switch the direction of medium flow.
[0087] The positional relationship between the first opening 111, the second opening 121, and the third opening 112 can vary, for example, such as... Figure 3 As shown, the first opening 111 and the second opening 121 are disposed on the same side, and the third opening 112 is located on the opposite side of the first opening 111 and the second opening 121; or, as Figure 4 As shown, the first opening 111, the second opening 121 and the third opening 112 are all located on the same side.
[0088] In some embodiments, such as Figure 1 and Figure 2 As shown, the first opening 111 and the second opening 121 are positioned opposite each other, and the third opening 112 is positioned on the same side as either the first opening 111 or the second opening 121. The valve core 2 includes a first end face 211 and a second end face 231, with the first end face 211 facing the first opening 111 and the second end face 231 facing the second opening 121. This arrangement positions the first opening 111 and the second opening 121 at the end of the valve core 2's stroke, further improving the valve opening and closing speed.
[0089] In some embodiments, such as Figure 1 and Figure 2As shown, the valve core 2 is provided with a first flow channel 233, allowing the third opening 112 to communicate with the first opening 111 or the second opening 121 on the opposite side. By providing the first flow channel 233 on the valve core 2 for communication, the external space of the valve core 2 can be reduced, making the structure more compact. In addition, the outer peripheral surface of the valve core 2 can be movably connected to the inner wall of the cavity, or movably connected to the guiding structure inside the cavity, improving the movement stability of the valve core 2.
[0090] As an example of this application, such as Figure 1 and Figure 2 As shown, the first opening 111 and the second opening 121 are disposed opposite to each other on the fixing assembly 1. The valve core 2 is disposed between the first opening 111 and the second opening 121, dividing the chamber 14 into two parts. The third opening 112 is disposed on the same side as the first opening 111. When the valve core 2 closes the first opening 111 through the first end face 211, the third opening 112 communicates with the second opening 121 through the first flow channel 233; when the valve core 2 closes the second opening 121 through the second end face 231, the third opening 112 communicates with the first opening 111.
[0091] In some embodiments, such as Figure 5 and Figure 6 As shown, the valve core 2 includes a first part 21, a second part 22, and a third part 23 connected in sequence. A first end face 211 is located in the first part 21, and a second end face 231 is located in the third part 23. A stepped surface 232 is formed between the outer peripheral surface of the second part 22 and the outer peripheral surface of the third part 23. A first flow channel 233 extends from the second end face 231 to the stepped surface 232. By setting the stepped surface 232, one end of the first flow channel 233 facing the first opening 111 and the third opening 112 is opened on the stepped surface 232, thereby forming a clearance space on the side wall of the valve core 2 and preventing the first flow channel 233 from being blocked. Furthermore, the first elastic member 3 abuts against the second end face 231 of the valve core 2, and the position of the first elastic member 3 on the second end face 231 is fixed, so the first elastic member 3 is not likely to block the opening of the first flow channel 233 on the second end face 231; while the second elastic member 4 abuts against the first end face 211 of the valve core 2, and the distance between the first end face 211 and the stepped surface 232 is relatively far, so the second elastic member 4 is not likely to block the opening of the first flow channel 233 on the stepped surface 232.
[0092] In some embodiments, such as Figure 5 and Figure 6 As shown, the outer peripheral surface of the first part 21 is a conical surface 212. The larger end of the conical surface 212 is connected to the first end face 211, and the smaller end of the conical surface 212 is connected to the outer peripheral surface of the second part 22. By setting the conical surface 212, the clearance space is expanded, and the medium is guided into and out of the first flow channel 233.
[0093] In some embodiments, the stepped surface 232 surrounds the second portion 22. With this arrangement, the external shape of the valve core 2 approaches symmetry, making it more structurally and physically stable.
[0094] In some embodiments, the third part 23 is provided with a plurality of first flow channels 233, which are arranged at circumferential intervals along the third part 23. By providing a plurality of first flow channels 233, the fault tolerance and flow rate are improved, and the blockage of a certain first flow channel 233 is avoided to prevent poor flow. At the same time, the structural symmetry of the valve core 2 is further improved, making the movement state more stable.
[0095] In some embodiments, such as Figure 7 As shown, the first end face 211 includes a first central region 2111 and a first edge region 2112. The first edge region 2112 surrounds the first central region 2111. The second elastic member 4 abuts against the first edge region 2112. The first opening 111 corresponds to the first central region 2111. The second elastic member 4 is offset from the first opening 111, so the second elastic member 4 is less likely to obstruct the flow of the first opening 111. The first central region 2111 has a large area, which is conducive to better sealing of the first opening 111.
[0096] In some embodiments, such as Figure 6 , Figure 7 and Figure 9 As shown, the first central region 2111 protrudes towards the first opening 111 relative to the first edge region 2112. When the first central region 2111 protrudes, the second elastic member 4 is sleeved on the protrusion, improving the stability of the second elastic member 4, preventing the second elastic member 4 from detaching from the first end face 211, and preventing the second elastic member 4 from deflecting to the side. In addition, when the first central region 2111 closes the first opening 111, a space is formed between the first edge region 2112 and the inner wall of the cavity to accommodate the second elastic member 4, increasing the closing pressure of the first central region 2111 on the first opening 111, preventing excessive deformation of the second elastic member 4, and extending its service life.
[0097] In some embodiments, such as Figure 9 As shown, the inner wall of the chamber 14 is provided with a protrusion 113, and the first opening 111 is disposed on the protrusion 113. By disposing the first opening 111 on the protrusion 113, the sealing performance of the first central region 2111 to the first opening 111 is further improved.
[0098] In some embodiments, such as Figure 8As shown, the second end face 231 includes a second central region 2311 and a second edge region 2312. The second edge region 2312 surrounds the second central region 2311. The first elastic member 3 abuts against the second edge region 2312. The second opening 121 corresponds to the second central region 2311. The positions of the first elastic member 3 and the second opening 121 are offset. The second central region 2311 has a larger area, which is beneficial for better sealing of the second opening 121.
[0099] In some embodiments, such as Figure 6 , Figure 8 and Figure 10 As shown, the second central region 2311 protrudes towards the second opening 121 relative to the second edge region 2312. When the second central region 2311 protrudes, the first elastic member 3 is sleeved on the protrusion, improving the stability of the first elastic member 3, preventing the first elastic member 3 from detaching from the second end face 231, and preventing the first elastic member 3 from deflecting to the side. In addition, when the second central region 2311 closes the second opening 121, a space is formed between the second edge region 2312 and the inner wall of the cavity to accommodate the first elastic member 3, increasing the closing pressure of the second central region 2311 on the second opening 121, preventing excessive deformation of the first elastic member 3, and extending its service life.
[0100] In some embodiments, the valve structure further includes a first seal 61 and a second seal 62, such as Figure 9 As shown, the first sealing element 61 is disposed on the first end face 211 and corresponds to the position of the first opening 111, as follows: Figure 10 As shown, the second seal 62 is disposed on the second end face 231 and corresponds to the position of the second opening 121. The seal is made of an elastic material, such as rubber, to enhance the sealing performance and prevent leakage when the valve is closed.
[0101] In some embodiments, such as Figure 9 As shown, the first end face 211 is provided with a first groove 2113 for accommodating the first sealing member 61, such as... Figure 10 As shown, the second end face 231 is provided with a second groove 2313 for accommodating the second sealing element 62; both the bottom surfaces of the first groove 2113 and the second groove 2313 are provided with buffer portions 24. By providing the first groove 2113 to accommodate the first sealing element 61 and the second groove 2313 to accommodate the second sealing element 62, on the one hand, the first sealing element 61 and the second sealing element 62 can be positioned and installed better; on the other hand, it prevents the first sealing element 61 and the second sealing element 62 from deviating or shifting during repeated stress, thus ensuring sealing performance. The buffer portion 24 is a space formed by further recessing from the bottom surface of the first groove 2113 or the second groove 2313. The buffer portion 24 can absorb the deformation generated by the corresponding first sealing element 61 or second sealing element 62, thereby improving the service life of the sealing element.
[0102] In embodiments where the first opening 111 is provided on the protrusion 113, the first groove 2113 can also be used to receive the protrusion 113 to further improve the sealing performance.
[0103] Optionally, such as Figure 11 As shown, the first seal 61 and the second seal 62 are constructed as cylindrical structures. The outer circumferential surface of the cylindrical structure is provided with a strip groove 63, which is used to absorb deformation and improve the service life of the seal.
[0104] The drive mechanism 5 described in this application embodiment can be a manual mechanism, an electric mechanism such as an electric cylinder, a pneumatic mechanism such as a pneumatic cylinder, or an electromagnetic mechanism. This application embodiment will provide a detailed description using an electromagnetic mechanism as an example. Figure 1 and Figure 2 As shown, the drive mechanism 5 includes a stationary iron core 51 and an electromagnetic coil 52. The stationary iron core 51 is disposed in the chamber 14 and located at one end of the valve core. The electromagnetic coil 52 is sleeved on the outside of the stationary iron core 51. When the electromagnetic coil 52 is energized, it provides driving force.
[0105] In embodiments where the drive mechanism 5 includes a stationary iron core 51 and an electromagnetic coil 52, the valve core 2 is made of a magnetically conductive material, including nickel-iron alloy, nickel-zinc ferrite, magnetic stainless steel, etc.
[0106] In some embodiments, such as Figure 1 , Figure 2 , Figure 12 and Figure 13 As shown, the stationary iron core 51 is provided with a second flow channel 511, one end of which is correspondingly arranged with the second opening 121, and the other end of the first flow channel 233 is correspondingly arranged with the valve core. When the valve core is in the second position, it closes the other end of the first flow channel 233 to close the second opening 121. By such an arrangement, the space occupied on the side of the valve core 2 can be reduced.
[0107] In some embodiments, such as Figure 13 , Figure 14 and Figure 15 As shown, the stationary iron core 51 includes a third end face 512 facing the valve core 2, and the other end of the first flow channel 233 is located on the third end face 512. The third end face 512 is provided with a first annular groove 5121 surrounding the first flow channel 233, and the second end face 231 of the valve core 2 is provided with a first annular protrusion 2314. When the valve core 2 is in the second position, the first annular protrusion 2314 engages with the first annular groove 5121. By engaging the first annular protrusion 2314 with the first annular groove 5121, the sealing effect is improved.
[0108] In an embodiment with a second seal 62, a first annular protrusion 2314 surrounds a second groove 2313 where the second seal 62 is located. Optionally, the inner ring edge of the first annular protrusion 2314 extends toward its own center to block the second seal 62 and prevent the second seal 62 from dislodging.
[0109] In some embodiments, such as Figure 1 and Figure 2 As shown, the fixing assembly 1 includes a valve seat 11, a housing 12, and a valve body 13. The valve seat 11 is connected to the housing 12 to form a chamber 14. One end of the valve body 13 is connected to the inner wall of the valve seat 11, and the other end of the valve body 13 extends to the housing 12 to cover the connection position between the valve seat 11 and the housing 12. A first opening 111 is provided in the valve seat 11, and the valve body 13 is provided with a guide channel 131, in which the valve core 2 is movably fitted.
[0110] like Figure 16 , Figure 17 and Figure 18 As shown, the valve seat 11 has a receiving groove 114, which is part of the chamber 14. A first opening 111 is provided on the bottom wall of the receiving groove 114, and the side wall of the receiving groove 114 has a reinforcing rib 1141 protruding towards its own center. Please refer to [further details]. Figure 1 As shown, the housing 12 covers the valve seat 11 to form another part of the chamber 14, and the second opening 121 is provided in the housing 12.
[0111] like Figure 19 , Figure 20 and Figure 21 As shown, and in combination Figure 1 The valve body 13 includes a cylindrical structure. One end of the cylindrical structure is located in the receiving groove 114 of the valve seat 11 and its end face abuts against the reinforcing rib 1141. The other end of the cylindrical structure extends to the housing 12 and corresponds to the second opening 121. The inner wall of the cylindrical structure forms a guide channel 131.
[0112] In the embodiment where the drive mechanism 5 includes an electromagnetic coil 52 and a stationary iron core 51, the electromagnetic coil 52 is disposed between the outer peripheral surface of the valve body 13 and the inner wall of the housing 12, and the end of the stationary iron core 51 facing the valve core 2 is inserted into the guide channel 131 with an interference fit to prevent the medium from corroding the electromagnetic coil 52 and other internal functional components.
[0113] Please refer to again Figure 1 and Figure 2 As shown, the fixing assembly 1 also includes a third seal 71 and a fourth seal 72. The third seal 71 is disposed at the connection position between the valve seat 11 and the housing 12, and the fourth seal 72 is disposed between the inner wall of the valve seat 11 and the outer peripheral surface of the valve body 13.
[0114] like Figure 16 , Figure 17 and Figure 18 As shown, the surface of the valve seat 11 is also provided with a first annular sealing groove 115. The first annular sealing groove 115 surrounds the opening of the receiving groove 114. The third sealing member 71 is embedded in the first annular sealing groove 115. When the housing 12 is connected to the valve seat 11, it squeezes the third sealing member 71 to form an annular sealing area.
[0115] like Figure 19 , Figure 20 and Figure 21 As shown, the outer wall of the valve body 13 is provided with a second annular sealing groove 132, and the fourth sealing element 72 is disposed in the second annular sealing groove 132. When the valve body 13 is inserted into the valve seat 11, the opening of the second annular sealing groove 132 faces the side wall of the receiving groove 114, and the side wall of the receiving groove 114 squeezes the fourth sealing element 72 to form an annular sealing area.
[0116] By forming multiple annular sealing areas, the sealing performance is improved, leakage is prevented, and the internal functional components such as the electromagnetic coil 52 are prevented from being corroded by the medium.
[0117] It should be noted that the valve structure provided in this application embodiment can also be a two-way valve with a first opening 111 and a third opening 112. Exemplarily, the fixing component 1 is provided with a chamber 14, a first opening 111, and a third opening 112. The first opening 111 and the third opening 112 are respectively connected to the chamber 14 and are used to input or output fluid media into or out of the chamber 14. When the valve core 2 is in the first position, it closes the first opening 111 to prevent the fluid media from flowing through the chamber 14, the first opening 111, and the third opening 112, thus closing the valve. When the valve core 2 is in the second position, it opens the first opening 111 to allow the fluid media to flow through the chamber 14, the first opening 111, and the third opening 112, thus opening the valve.
[0118] The valve structure provided in this application embodiment can be applied to a variety of devices and scenarios, and the fluid medium includes a variety of fluids, such as air, water, oil, etc.
[0119] According to a second aspect of this application, an air suspension system is provided, comprising an air pump and a valve structure as described in any embodiment of the first aspect, wherein the air pump supplies air through the valve structure.
[0120] According to a third aspect of this application, a vehicle is provided, including the air suspension system described in the second aspect.
[0121] The vehicle may be a gasoline-powered vehicle, a plug-in hybrid electric vehicle, or a new energy vehicle, etc., and this disclosure does not make any specific restrictions.
[0122] In the description of this application, 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. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0123] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.
[0124] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.
[0125] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.
Claims
1. A valve structure, characterized in that, include: A fixing assembly having a chamber and a first opening communicating with the chamber; A valve core is disposed in the chamber and is movable between a first position and a second position. The valve core closes the first opening when it is in the first position and opens the first opening when it is in the second position. A first elastic element is disposed at one end of the valve core and provides a first elastic force toward the first position to the valve core; A second elastic element is disposed at the other end of the valve core and provides a second elastic force to the valve core toward the second position.
2. The valve structure according to claim 1, characterized in that, Also includes: A drive mechanism provides a driving force to the valve core toward the second position; wherein the first elastic force is greater than the second elastic force, and the sum of the driving force and the second elastic force is greater than the first elastic force.
3. The valve structure according to claim 2, characterized in that, The fixing component is also provided with a second opening and a third opening; When the valve core is in the first position, the second opening is opened so that the second opening and the third opening communicate through the chamber; When the valve core is in the second position, it closes the second opening, so that the first opening and the third opening communicate through the chamber.
4. The valve structure according to claim 3, characterized in that, The first opening is disposed opposite to the second opening, and the third opening is disposed on the same side as the first opening or the second opening; The valve core includes a first end face and a second end face, the first end face facing the first opening and the second end face facing the second opening.
5. The valve structure according to claim 4, characterized in that, The valve core is provided with a first flow channel so that the third opening can communicate with the first opening or the second opening on the opposite side.
6. The valve structure according to claim 5, characterized in that, The valve core includes a first part, a second part, and a third part connected in sequence. The first end face is located in the first part, the second end face is located in the third part, and a stepped surface is formed between the outer peripheral surface of the second part and the outer peripheral surface of the third part. The first flow channel extends from the second end face to the stepped surface.
7. The valve structure according to claim 6, characterized in that, The outer peripheral surface of the first part is a conical surface, the larger end of the conical surface is connected to the first end face, and the smaller end of the conical surface is connected to the outer peripheral surface of the second part.
8. The valve structure according to claim 6, characterized in that, The stepped surface surrounds the second part.
9. The valve structure according to claim 6, characterized in that, The third part is provided with a plurality of first flow channels, which are arranged at circumferential intervals along the third part.
10. The valve structure according to claim 4, characterized in that, The first end face includes a first central region and a first edge region, the first edge region surrounds the first central region, the second elastic member abuts against the first edge region, and the first opening corresponds to the first central region.
11. The valve structure according to claim 10, characterized in that, The first central region protrudes toward the first opening relative to the first edge region.
12. The valve structure according to claim 4, characterized in that, The second end face includes a second central region and a second edge region, the second edge region surrounds the second central region, the first elastic member abuts against the second edge region, and the second opening corresponds to the second central region.
13. The valve structure according to claim 12, characterized in that, The second central region protrudes toward the second opening relative to the second edge region.
14. The valve structure according to claim 4, characterized in that, The valve structure further includes a first sealing element and a second sealing element. The first sealing element is disposed on the first end face and corresponds to the first opening position, and the second sealing element is disposed on the second end face and corresponds to the second opening position.
15. The valve structure according to claim 14, characterized in that, The first end face is provided with a first groove for accommodating the first seal, and the second end face is provided with a second groove for accommodating the second seal; both the bottom surfaces of the first groove and the second groove are provided with buffer portions.
16. The valve structure according to claim 14, characterized in that, The inner wall of the chamber is provided with a protrusion, and the first opening is located on the protrusion.
17. The valve structure according to claim 5, characterized in that, The driving mechanism includes a stationary iron core and an electromagnetic coil. The stationary iron core is disposed in the chamber and located at one end of the valve core. The electromagnetic coil is sleeved on the outside of the stationary iron core. When the electromagnetic coil is energized, it provides the driving force.
18. The valve structure according to claim 17, characterized in that, The stationary iron core is provided with a second flow channel, one end of the second flow channel is configured to correspond to the second opening, and the other end of the first flow channel is configured to correspond to the valve core; When the valve core is in the second position, it closes the other end of the first flow channel to close the second opening.
19. The valve structure according to claim 18, characterized in that, The stationary iron core includes a third end face, which faces the valve core, and the other end of the first flow channel is located on the third end face. The third end face is provided with a first annular groove surrounding the first flow channel, and the second end face is provided with a first annular protrusion. When the valve core is in the second position, the first annular protrusion cooperates with the first annular groove.
20. The valve structure according to claim 1, characterized in that, The fixing assembly includes a valve seat, a housing, and a valve body. The valve seat is connected to the housing to form the chamber. One end of the valve body is connected to the inner wall of the valve seat, and the other end of the valve body extends to the housing to cover the connection position between the valve seat and the housing. The first opening is provided in the valve seat, the valve body is provided with a guide channel, and the valve core is movably fitted into the guide channel.
21. The valve structure according to claim 20, characterized in that, The fixing assembly further includes a third seal and a fourth seal. The third seal is disposed at the connection position between the valve seat and the housing, and the fourth seal is disposed between the inner wall of the valve seat and the outer peripheral surface of the valve body.
22. An air suspension system, characterized in that, It includes an air pump and a valve structure as described in any one of claims 1-21, wherein the air pump supplies air through the valve structure.
23. A vehicle, characterized in that, Includes the air suspension system as described in claim 22.