Damping electromagnetic valve and vehicle

Abstract

The utility model discloses a damping electromagnetic valve and a vehicle. The damping electromagnetic valve comprises a valve seat, a valve element, a first valve plate and an elastic piece, an adjusting containing cavity is formed in the valve seat, the valve element is movably arranged in the adjusting containing cavity, the first valve plate is movably arranged in the adjusting containing cavity, and the elastic piece is arranged on the side, away from the valve element, of the first valve plate. The elastic piece is used for applying elastic force towards the valve element direction to the first valve plate. According to the damping electromagnetic valve, the elastic piece is arranged on the side, away from the valve element, of the first valve plate, contact between the elastic piece and the valve element is avoided, relative friction between the elastic piece and the valve element is avoided, the influence of the elastic piece on the valve element is reduced, meanwhile, the position of the valve element is not affected when pressure is applied to the first valve plate by a medium, and the damping effect is improved. Therefore, the accuracy of the valve element in the working process is improved, fluctuation of a flow curve of the damping electromagnetic valve is reduced, and the consistency and reliability of products are improved.

Description

Technical Field

[0001] The present application relates to the technical field of damping valves, and in particular to a damping solenoid valve and a vehicle. Background Art

[0002] In related art, the elastic member in a damping solenoid valve typically abuts against the valve core, allowing the valve core to reset when de-energized due to the elastic force of the elastic member. However, during operation, the elastic member creates friction with the valve core, affecting the valve core's trajectory and, consequently, the flow curve of the damping solenoid valve. This leaves room for improvement. Utility Model Content

[0003] The present application aims to solve at least one of the above-mentioned technical problems in the prior art to a certain extent. To this end, the present application proposes a damping solenoid valve that avoids contact between the elastic member and the valve core, thereby avoiding relative friction between the elastic member and the valve core and ensuring the accuracy of the valve core operation.

[0004] The present application also provides a vehicle having the damping solenoid valve.

[0005] According to the damping solenoid valve of the embodiment of the present application, it includes a valve seat, a valve core, a first valve plate and an elastic member, the interior of the valve seat has an adjustment accommodating cavity, the valve core is movably arranged in the adjustment accommodating cavity, the first valve plate is movably arranged in the adjustment accommodating cavity, the elastic member is arranged on the side of the first valve plate away from the valve core, and the elastic member is used to apply an elastic force to the first valve plate toward the valve core.

[0006] According to the damping solenoid valve of the embodiment of the present application, by arranging the elastic part on the side of the first valve plate away from the valve core, the contact between the elastic part and the valve core is avoided, so that the elastic part and the valve core do not produce relative friction, and the influence of the elastic part on the valve core is reduced. At the same time, the pressure exerted by the medium on the first valve plate will not affect the position of the valve core, thereby increasing the accuracy of the valve core working process, reducing the fluctuation of the flow curve of the damping solenoid valve, and improving the consistency and reliability of the product.

[0007] According to some embodiments of the present application, the damping solenoid valve further includes a valve seat core, the valve seat core is mounted on the valve seat, and the elastic member is disposed between the first valve sheet and the valve seat core.

[0008] According to some embodiments of the present application, the elastic member is a spring, the valve seat core includes a valve seat core body and a second valve plate, the valve seat core body is installed on the valve seat, the second valve plate is located on the side of the first valve plate away from the valve core, the elastic member is located between the first valve plate and the second valve plate, one end of the elastic member stops at the second valve plate, and one end of the elastic member stops at the first valve plate.

[0009] According to some embodiments of the present application, the damping solenoid valve further includes a guide column, the guide column passes through the second valve plate and the first valve plate, and the elastic member is sleeved on the periphery of the guide column.

[0010] According to some embodiments of the present application, the axis of the guide post is parallel to or colinear with the axis of the valve core.

[0011] According to some embodiments of the present application, a first valve port is provided on the valve seat, and a second valve port is provided on the valve seat core. When the valve core and the first valve plate move, the first valve port is connected to or isolated from the second valve port.

[0012] According to some embodiments of the present application, the damping solenoid valve also includes a driving unit, which is used to drive the valve core to move toward the valve seat core to drive the first valve plate to move toward the valve seat core. The valve seat core also includes a medium passage port, which is located at one end of the valve seat core facing the first valve plate. The second valve port is connected to the medium passage port. When the valve core drives the first valve plate to block the medium passage port, the first valve port is isolated from the second valve port.

[0013] According to some embodiments of the present application, the valve seat core includes a valve seat core body and a second valve plate, the valve seat core body is installed on the valve seat, the valve seat core also includes a medium passage port, the medium passage port is located at one end of the valve seat core facing the first valve plate, the end of the valve seat core body facing the first valve plate is formed as the medium passage port, the second valve port is formed on the second valve plate, or the second valve port is formed in the gap at the connection between the second valve plate and the valve seat core body.

[0014] According to some embodiments of the present application, the second valve disc is mounted on the valve seat core body, or the second valve disc and the valve seat core body are an integral structure.

[0015] According to some embodiments of the present application, the driving part includes a stationary core and a moving core, a coil is wound around the stationary core, and the moving core can move toward the valve seat core relative to the stationary core when the coil is energized to drive the valve core to move toward the valve seat core.

[0016] According to some embodiments of the present application, the damping solenoid valve further includes a reset member, which is used to apply an elastic force to the stationary core to move the stationary core in a direction away from the valve seat core.

[0017] According to some embodiments of the present application, the driving part also includes a valve needle, which is fixedly connected to the moving core. The valve needle is located on the side of the valve core away from the first valve plate. The valve needle is suitable for stopping the valve core, and the moving core drives the valve core to move toward the valve seat core through the valve needle.

[0018] According to some embodiments of the present application, the damping solenoid valve further includes a shell, the static core is fixed inside the shell, and the valve seat is fixedly connected to the shell.

[0019] According to some embodiments of the present application, a magnetic isolation ring is provided between the stationary core and the valve core.

[0020] According to some embodiments of the present application, a first valve hole is provided on the first valve plate, and the first valve hole passes through the first valve plate along the thickness direction of the first valve plate. The valve core has a valve core cavity, and the valve core cavity is connected to the first valve hole. The stop position of the elastic member and the first valve plate is arranged relative to the valve core cavity.

[0021] A vehicle according to another embodiment of the present application includes the above-mentioned damping solenoid valve.

[0022] According to the vehicle of the embodiment of the present application, its damping solenoid valve avoids contact between the elastic part and the valve core by arranging the elastic part on the side of the first valve plate away from the valve core, so that the elastic part and the valve core do not produce relative friction, reducing the influence of the elastic part on the valve core. At the same time, the pressure exerted by the medium on the first valve plate will not affect the position of the valve core, thereby increasing the accuracy of the valve core working process, reducing the fluctuation of the flow curve of the damping solenoid valve, and improving the consistency and reliability of the product.

[0023] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of a damping solenoid valve according to an embodiment of the present application;

[0025] Figure 2 yes Figure 1 A cross-sectional view of a partially damped solenoid valve is shown;

[0026] Figure 3 is a cross-sectional view of a valve seat core according to some embodiments;

[0027] Figure 4 is a schematic diagram of a valve seat core in some embodiments;

[0028] Figure 5 is a schematic diagram of a valve seat core in some embodiments;

[0029] Figure 6 is an assembly diagram of the first valve disc, the elastic member, and the guide post in some embodiments;

[0030] Figure 7 is an assembly diagram of the first valve disc, the elastic member, and the guide post from another perspective;

[0031] Figure 8 is a schematic diagram of a vehicle according to an embodiment of the present application.

[0032] Reference numerals:

[0033] Vehicle 100, damping solenoid valve 10, valve seat 1, adjustment accommodating chamber 11, first valve port 12, valve seat core 2, valve seat core body 21, second valve plate 22, second valve port 23, medium passage 24, valve core 3, valve core chamber 31, first valve plate 4, first valve hole 41, elastic member 5, guide column 6, drive unit 7, stationary core 71, coil 711, moving core 72, valve needle 73, reset member 74, housing 8, magnetic isolation ring 9. DETAILED DESCRIPTION

[0034] The following describes in detail embodiments of the present application, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0035] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0036] The following combination Figures 1-8 A damping solenoid valve 10 and a vehicle 100 having the damping solenoid valve 10 according to an embodiment of the present application are described in detail.

[0037] Reference Figure 1As shown, according to the damping solenoid valve 10 of the embodiment of the present application, it includes a valve seat 1, a valve core 3, a first valve disc 4 and an elastic member 5. The interior of the valve seat 1 has an adjustment accommodating chamber 11, the valve core 3 is movably arranged in the adjustment accommodating chamber 11, the first valve disc 4 is movably arranged in the adjustment accommodating chamber 11, and the elastic member 5 is arranged on the side of the first valve disc 4 away from the valve core 3. The elastic member 5 is used to apply an elastic force to the first valve disc 4, and this elastic force is toward the direction of the valve core 3. This elastic force can make the first valve disc 4 have a tendency to move toward the valve core 3. In some cases, this elastic force can make the first valve disc 4 stop at the valve core 3.

[0038] Specifically, the valve core 3 and the first valve disc 4 are movable within the adjustment accommodating chamber 11, allowing the damping solenoid valve 10 to adjust the positions of the valve core 3 and the first valve disc 4 as needed, flexibly adapting to different flow requirements and being suitable for various complex and changing working environments. At the same time, the elastic member 5 is disposed on the side of the first valve disc 4 facing away from the valve core 3, thereby avoiding contact between the elastic member 5 and the valve core 3 and preventing relative friction between the elastic member 5 and the valve core 3. This reduces the impact of the elastic member 5 on the valve core 3 and improves the positioning accuracy of the valve core 3. Furthermore, the pressure exerted by the medium on the first valve disc 4 does not affect the position of the valve core 3, thereby increasing the accuracy of the valve core 3's working process, reducing fluctuations in the flow curve of the damping solenoid valve 10, and improving the consistency and reliability of the product.

[0039] In related art, the elastic member in a damping solenoid valve typically abuts against the valve core, allowing the valve core to reset due to the elastic force of the elastic member when power is off. However, during operation, the elastic member creates relative friction with the valve core, affecting the valve core's trajectory and, consequently, the flow curve of the damping solenoid valve.

[0040] According to the damping solenoid valve 10 of the embodiment of the present application, by arranging the elastic member 5 on the side of the first valve plate 4 away from the valve core 3, the contact between the elastic member 5 and the valve core 3 is avoided, so that the elastic member 5 and the valve core 3 do not generate relative friction, the influence of the elastic member 5 on the valve core 3 is reduced, and the positioning accuracy of the valve core 3 is improved. At the same time, the pressure exerted by the medium on the first valve plate 4 will not affect the position of the valve core 3, thereby increasing the accuracy of the working process of the valve core 3, reducing the fluctuation of the flow curve of the damping solenoid valve 10, and improving the consistency and reliability of the product.

[0041] According to some embodiments of the present application, see Figure 1-Figure 5As shown, the damping solenoid valve 10 further includes a valve seat core 2, which is mounted on the valve seat 1, and an elastic member 5 disposed between the first valve disc 4 and the valve seat core 2. Specifically, when the damping solenoid valve 10 is in operation, the valve core 3 moves toward the valve seat core 2, driving the first valve disc 4 closer to the valve seat core 2. This reduces the distance between the first valve disc 4 and the valve seat core 2, thereby reducing the flow rate of the medium through the valve seat core 2 and the first valve disc 4. Alternatively, the elastic force exerted by the elastic member 5 on the first valve disc 4 causes the first valve disc 4 to move away from the valve seat core 2, moving the first valve disc 4 away from the valve seat core 2. This increases the distance between the first valve disc 4 and the valve seat core 2, thereby increasing the flow rate of the medium through the valve seat core 2 and the first valve disc 4.

[0042] According to some embodiments of the present application, see Figure 1-Figure 5 As shown, the elastic member 5 is a spring. The valve seat core 2 includes a valve seat core body 21 and a second valve disc 22. The valve seat core body 21 is mounted on the valve seat 1. The second valve disc 22 is located on the side of the first valve disc 4 facing away from the valve core 3. The elastic member 5 is located between the first and second valve discs 4, 22. One end of the elastic member 5 abuts the second valve disc 22, while the other end abuts the first valve disc 4. In other words, the second valve disc 22 restricts the displacement of the elastic member 5. When the distance between the first and second valve discs 4, 22 decreases, the elastic force of the elastic member 5 on the first valve disc 4 increases; when the distance between the first and second valve discs, 22 increases, the elastic force of the elastic member 5 on the first valve disc 4 decreases. By adjusting the distance between the first and second valve discs 4, 22, the flow rate of the medium is adjusted, thereby achieving the effect of adjusting the damping force. During this process, the elastic member 5 does not contact the valve core 3, reducing the influence of relative friction on the valve core 3, improving the accuracy of the displacement of the valve core 3, and thereby increasing the accuracy when adjusting the distance between the first valve plate 4 and the second valve plate 22, thereby reducing the error of the damping solenoid valve 10 in adjusting the medium flow rate.

[0043] In some embodiments, as Figure 4 As shown, the second valve disc 22 may be a circular disc structure, and the circumferential outer surface of the second valve disc 22 is in contact with the inner wall of the valve seat core body 21 .

[0044] In some embodiments, as Figure 5 As shown, the second valve disc 22 may be a long strip-shaped structure, with both ends of the long strip-shaped structure in contact with the inner wall of the valve seat core body 21 .

[0045] It should be noted that the above embodiment only lists some optional shape features of the second valve disc 22, rather than limiting the shape of the second valve disc 22. The second valve disc 22 can also have other shapes that fit the inner wall of the valve seat core body 21, which are not listed here one by one.

[0046] According to some embodiments of the present application, see Figure 1 、 Figure 6 、 Figure 7 As shown, the damping solenoid valve 10 further includes a guide post 6, which passes through the second valve disc 22 and the first valve disc 4. The elastic member 5 is sleeved around the outer periphery of the guide post 6. Thus, the provision of the guide post 6 ensures that the first valve disc 4 can move axially between the valve core 3 and the valve seat core 2 along the guide post 6. Specifically, guide holes for the guide post 6 to pass through are defined in both the second valve disc 22 and the first valve disc 4. The guide post 6 passes through corresponding guide holes in the second valve disc 22 and the first valve disc 4.

[0047] In some embodiments, the guide post 6 is fixedly connected to the first valve disc 4 , and the first valve disc 4 moves axially along the guide post 6 to drive the guide post 6 to move.

[0048] In some embodiments, the guide post 6 is fixedly connected to the second valve disc 22 , and the guide post 6 is stationary when the first valve disc 4 moves axially along the guide post 6 .

[0049] In some embodiments, the first valve disc 4 and the second valve disc 22 have the same shape.

[0050] In some embodiments, the first valve disc 4 and the second valve disc 22 have different shapes.

[0051] According to some embodiments of the present application, see Figure 1 、 Figure 6 、 Figure 7 As shown, the axis of the guide post 6 is parallel or colinear with the axis of the valve core 3. This ensures that the running trajectory of the first valve disc 4 remains parallel to the axis of the valve core 3 when the first valve disc 4 moves axially along the guide post 6, preventing the first valve disc 4 from tipping over relative to the valve core 3 and causing the medium to flow out through the gap between the first valve disc 4 and the valve core 3, thereby improving the structural integrity of the damping solenoid valve 10.

[0052] In some embodiments, as Figure 1 As shown, the axis of the guide post 6 is colinear with the axis of the valve core 3. In other words, there is one guide post 6, and the axis of the guide post 6 passes through the center of the first valve disc 4 and the second valve disc 22.

[0053] In some embodiments not shown in the figures, the axis of the guide post 6 is parallel to the axis of the valve core 3. In other words, there can be two, three, or more guide posts 6, and correspondingly, there can also be two, three, or more elastic members 5, which are sleeved onto the corresponding guide posts 6. The midpoint of the polygon formed by the guide posts 6 on a plane perpendicular to the axis of the guide posts 6 is located on the axis of the valve core 3. In other words, multiple guide posts 6 are spaced apart around the axis of the valve core 3, and the distances from the multiple guide posts 6 to the axis of the valve core 3 are equal, thereby ensuring smooth and reliable movement of the valve core 3 and the first valve disc 4, and preventing the valve core 3 and the first valve disc 4 from tipping over.

[0054] In some embodiments not shown in the figures, the axis of one of the guide posts 6 is collinear with the axis of the valve core 3, and the axes of the other guide posts 6 are parallel to the axis of the valve core 3. In other words, there can be three, four, or more guide posts 6, and the axis of one of the guide posts 6 passes through the centers of the first valve disc 4 and the second valve disc 22, and the midpoints of the polygons formed by the other guide posts 6 on a plane perpendicular to the axes of the guide posts 6 are located on the axis of the valve core 3. Similarly, the other multiple guide posts 6 are arranged at intervals around the axis of the valve core 3, and the distances from the other multiple guide posts 6 to the axis of the valve core 3 are equal, thereby ensuring that the valve core 3 and the first valve disc 4 move smoothly and reliably, and the valve core 3 and the first valve disc 4 are not easily overturned.

[0055] According to some embodiments of the present application, see Figure 1 As shown, the valve seat 1 is provided with a first valve port 12, and the valve seat core 2 is provided with a second valve port 23. The valve core 3 and the first valve disc 4 move to connect or disconnect the first valve port 12 and the second valve port 23. As a result, when the valve core 3 and the first valve disc 4 move, the distance between the first valve disc 4 and the valve seat core 2 changes, thereby controlling the flow of the medium between the first valve port 12 and the second valve port 23. This allows the damping solenoid valve 10 to better control the medium flow, thereby achieving the effect of adjusting the damping force.

[0056] In some embodiments, the medium flows into the damping solenoid valve 10 through the first valve port 12 and flows out from the second valve port 23 .

[0057] In other embodiments, the medium flows into the damping solenoid valve 10 through the second valve port 23 and flows out from the first valve port 12 .

[0058] In some embodiments, there is one first valve port 12 .

[0059] In other embodiments, there are multiple first valve ports 12, such as two, three or more. In the axial direction of the valve core 3, when the first valve ports 12 are at the same height, all the first valve ports 12 can be connected to the second valve port 23 at the same time, or can be isolated from the second valve port 23 at the same time. Figure 1As shown, there are two first valve ports 12: a first left valve port 12a located in the F3 direction and a first right valve port 12b located in the F4 direction. In the axial direction of the valve core 3, the first left valve port 12a and the first right valve port 12b are located at the same height. Alternatively, the valve core 3 can push the first valve disc 4 downward until the first valve disc 4 abuts the valve seat core 2. In this way, the first left valve port 12a and the first right valve port 12b are both isolated from the second valve port 23. In some cases, when the valve core 3 and the first valve disc 4 move upward, separating the first valve disc 4 from the valve seat core 2, the first left valve port 12a and the first right valve port 12b are both connected to the second valve port 23. In other cases, the medium pushes the first valve disc 4 downward, separating the first valve disc 4 from the valve core 3 until the first valve disc 4 stops at the valve seat core 2. Since the first valve disc 4 has a first valve hole 41, the first left valve port 12a and the first right valve port 12b are also connected to the second valve port 23 at this time.

[0060] According to some embodiments of the present application, see Figure 1 As shown, the damping solenoid valve 10 also includes a drive unit 7, which is used to drive the valve core 3 toward the valve seat core 2 to drive the first valve disc 4 toward the valve seat core 2. The valve seat core 2 also includes a medium passage 24. The medium passage 24 is located at the end of the valve seat core 2 facing the first valve disc 4. The second valve port 23 is connected to the medium passage 24. When the valve core 3 drives the first valve disc 4 to block the medium passage 24, the first valve port 12 is isolated from the second valve port 23. Specifically, the drive unit 7 controls the valve core 3 to move toward the valve seat core 2, driving the first valve disc 4 close to the valve seat core 2, thereby controlling the flow of medium through the medium passage 24, thereby affecting the damping force of the damping solenoid valve 10. When the valve core 3 drives the first valve disc 4 to engage the valve seat core 2, the medium passage 24 is blocked, preventing the medium from flowing into or out of the medium passage 24. The first valve port 12 is isolated from the second valve port 23. At this time, the damping solenoid valve 10 prevents the medium from flowing between the first valve port 12 and the second valve port 23.

[0061] According to some embodiments of the present application, see Figure 1-Figure 3 As shown, the valve seat core 2 includes a valve seat core body 21 and a second valve disc 22 . The valve seat core body 21 is mounted on the valve seat 1 , and one end of the valve seat core body 21 facing the first valve disc 4 is formed as a medium passage 24 .

[0062] Optionally, the second valve port 23 is formed on the second valve plate 22, such as Figure 4 Alternatively, the second valve port 23 is formed in the gap between the second valve plate 22 and the valve seat core body 21, as shown. Figure 5 shown.

[0063] When the valve core 3 drives the first valve disc 4 to approach the second valve disc 22 , the medium flow in the medium passage port 24 decreases, thereby reducing the medium flow through the first valve port 12 and the second valve port 23 , and vice versa.

[0064] In some embodiments, the second valve disc 22 is mounted on the valve seat core body 21. This allows the second valve disc 22 and the valve seat core body 21 to be detachable, facilitating inspection and replacement of the second valve disc 22 and the valve seat core body 21 and reducing material waste. Furthermore, the second valve disc 22 and the valve seat core body 21 can be manufactured and processed separately, which helps reduce manufacturing costs.

[0065] In some embodiments, the second valve disc 22 is integrally formed with the valve seat core body 21. This reduces the number of assembly steps for the valve seat core 2, saves time, and ensures product consistency.

[0066] According to some embodiments of the present application, see Figure 1 As shown, the drive unit 7 includes a stationary core 71 and a dynamic core 72. A coil 711 is wound around the stationary core 71. When the coil 711 is energized, the dynamic core 72 can move relative to the stationary core 71 toward the valve seat core 2, thereby driving the valve core 3 toward the valve seat core 2. Specifically, when the coil 711 is energized, a magnetic field is generated that drives the dynamic core 72 toward the valve seat core 2. The movement of the dynamic core 72 drives the valve core 3 and the first valve disc 4 abutting against the valve core 3 toward the valve seat core 2, thereby reducing the distance between the first valve disc 4 and the valve seat core 2 and reducing the medium flow rate of the damping solenoid valve 10, thereby achieving the effect of adjusting the damping force. When the current changes, the distance between the first valve disc 4 and the valve seat core 2 changes, thereby changing the damping force of the damping solenoid valve 10.

[0067] Specifically, when the current increases, the magnetic field strength generated by the coil 711 increases, the magnetic field force borne by the moving core 72 increases, and the moving core 72 drives the valve core 3 and the first valve plate 4 to move toward the valve seat core 2. The distance between the first valve plate 4 and the valve seat core 2 becomes smaller, and the damping force of the damping solenoid valve 10 increases.

[0068] According to some embodiments of the present application, see Figure 1 As shown, the damping solenoid valve 10 further includes a reset member 74 , which is used to apply an elastic force to the moving core 72 to move the moving core 72 away from the valve seat core 2 .

[0069] Specifically, when coil 711 is energized, it generates a magnetic field that causes the movable core 72 to move the valve core 3 and the first valve disc 4 toward the valve seat core 2. At this point, the reset member 74 applies an elastic force to the movable core 72 away from the valve seat core 2, and the elastic member 5 applies an elastic force to the first valve disc 4 away from the valve seat core 2, until the magnetic force and elastic force of the magnetic field on the movable core 72 are balanced. When the current in coil 711 increases, the intensity of the magnetic field generated by coil 711 increases, and the magnetic force of the magnetic field on the movable core 72 also increases. The movable core 72 drives the valve core 3 and the first valve disc 4 toward the valve seat core 2, increasing the elastic force of the reset member 74 on the movable core 72 and the elastic force of the elastic member 5 on the first valve disc 4 until the magnetic force and elastic force are balanced again. The distance between the first valve disc 4 and the valve seat core 2 decreases, reducing the flow of medium through the valve seat core 2 and the first valve disc 4, and changing the damping force of the damping solenoid valve 10. On the contrary, when the current of the coil 711 decreases, the magnetic field intensity generated by the coil 711 decreases, and the magnetic force of the magnetic field on the moving core 72 also decreases. The elastic force of the reset member 74 on the moving core 72 is greater than the magnetic force of the magnetic field on the moving core 72. The moving core 72 drives the valve core 3 to move away from the valve seat core 2. The elastic force of the elastic member 5 on the first valve disc 4 causes the first valve disc 4 to move away from the valve seat core 2 in a state of being stopped with the valve core 3 until the magnetic force and the elastic force are balanced again. The distance between the first valve disc 4 and the valve seat core 2 increases, which increases the flow rate of the medium through the valve seat core 2 and the first valve disc 4, and the damping force of the damping solenoid valve 10 decreases.

[0070] Optionally, the reset member 74 may be a spring, and the reset member 74 may be one, two or more. Figure 1 As shown, the reset member 74 is two springs, both of which are sleeved on the valve needle 73. The first spring 74a is located in the F1 direction of the moving core 72, and the second spring 74b is located in the F1 direction of the moving core 72.

[0071] According to some embodiments of the present application, the driving part 7 further includes a valve needle 73, which is fixedly connected to the moving core 72. The valve needle 73 is located on the side of the valve core 3 away from the first valve plate 4. The valve needle 73 is suitable for stopping the valve core 3. The moving core 72 drives the valve core 3 to move toward the valve seat core 2 through the valve needle 73. Figure 1 As shown, the valve needle 73 is located above the valve core 3, and the movable core 72 drives the valve core 3 downward via the valve needle 73. Therefore, when the movable core 72 drives the valve core 3 toward the valve seat core 2 via the valve needle 73, the first valve disc 4 also moves toward the valve seat core 2. The distance between the first valve disc 4 and the valve seat core 2 decreases, reducing the flow of the medium through the first valve core 3 and the valve seat 1, and increasing the damping force of the damping solenoid valve 10.

[0072] Optionally, the static core 71 is a static iron core, and the dynamic core 72 is a dynamic iron core.

[0073] According to some embodiments of the present application, see Figure 1As shown, the damping solenoid valve 10 further includes a housing 8, a static core 71 fixed within the housing 8, and a valve seat 1 fixedly connected to the housing 8. Thus, the provision of the housing 8 and the fixed connection between the housing 8 and the valve seat 1 isolate the internal components of the damping solenoid valve 10 from the external environment, reducing the impact of the external environment on the operation of the damping solenoid valve 10 and increasing the control accuracy of the damping solenoid valve 10.

[0074] According to some embodiments of the present application, see Figure 1 As shown, a magnetic isolation ring 9 is provided between the stationary core 71 and the valve core 3. Thus, by providing the magnetic isolation ring 9 between the stationary core 71 and the valve core 3, the magnetic field generated by the stationary core 71 is prevented from being transmitted toward the valve core 3, thereby reducing the influence of the stationary core 71 on the valve core 3, improving the accuracy of the displacement of the valve core 3, and thus improving the accuracy of the damping force variation of the damping solenoid valve 10.

[0075] According to some embodiments of the present application, see Figure 1 、 6 As shown in Figures 7 and 8, the first valve disc 4 is provided with a first valve hole 41, which extends through the first valve disc 4 along its thickness. The valve core 3 has a valve core cavity 31, which communicates with the first valve hole 41. The elastic member 5 and the stop position of the first valve disc 4 are arranged opposite the valve core cavity 31. As a result, the valve core cavity 31 communicates with the valve seat core 2, ensuring that the pressure of the medium in the valve seat core 2 and the pressure of the medium in the first valve port 12 remain balanced when the first valve disc 4 is in any position. This prevents the first valve disc 4 and the valve core 3 from being unable to move due to a pressure difference, thereby reducing the probability of failure and improving structural integrity.

[0076] It should be noted that the thickness direction of the first valve plate 4 is as follows: Figure 1 F1-F2 direction shown.

[0077] It should be noted that the phrase "relatively disposed" in the phrase "the abutment position of the elastic member 5 and the first valve disc 4 is disposed relative to the valve core cavity 31" means that, within a plane perpendicular to the axis of the elastic member 5, the projection of the abutment position of the elastic member 5 and the first valve disc 4 within said plane lies within the projection of the valve core cavity 31 within said plane. This prevents the abutment force of the elastic member 5 on the first valve disc 4 from directly acting on the valve core 3, minimizing interference with the movement of the valve core 3 by the elastic member 5.

[0078] Specifically, the elastic member is a spring.

[0079] According to a specific example of the present application, a damping solenoid valve 10 is used to be set in a damper to adjust the damping force by current. The damping solenoid valve 10 includes: a shell 8, a coil 711, a moving core 72, a magnetic isolation ring 9, a valve seat 1, a valve core 3, a static core 71, a magnetic conductive ring, a valve needle 73, a valve seat core 2, and a first valve plate 4; wherein the static core 71, the magnetic isolation ring 9 and the valve seat 1 are combined to form a drive accommodating chamber, and the valve seat 1 and the valve seat core 2 form an adjustment accommodating chamber 11, wherein the moving core 72 is placed in the drive accommodating chamber, and the valve needle 73, the valve core 3 and the first valve plate 4 are placed in the adjustment accommodating chamber 11.

[0080] When energized, coil 711 generates a magnetic field that drives dynamic core 72 toward valve seat core 2. This, in turn, drives valve core 3 toward valve seat core 2 via valve needle 73, thereby changing the distance between valve core 3, first valve disc 4, and valve seat core 2, thereby adjusting the damping force. As the current changes, the distance between valve core 3, first valve disc 4, and valve seat core 2 also changes.

[0081] In some embodiments, see Figure 1-Figure 2 As shown, when the medium pressure at the first valve port 12 is greater than the medium pressure at the second valve port 23, the medium flows from the first valve port 12 into the damping solenoid valve 10 and out of the second valve port 23. When the downward pressure on the first valve disc 4 is greater than the elastic force of the elastic member 5 on the first valve disc 4, the first valve disc 4 compresses the elastic member 5 until it abuts against the valve seat core 2. At this time, the effective throttling area is the area A of the inner hole at the end of the valve core 3. When the medium pressure at the second valve port 23 is greater than the medium pressure at the first valve port 12, the medium flows from the second valve port 23 into the damping solenoid valve 10 and out of the first valve port 12. At this time, the first valve disc 4 is subjected to upward pressure until it abuts against the valve core 3. At this time, the effective throttling area is the area B of the inner hole of the valve seat core 2. Where B>A. By providing the first valve disc 4, the throttling area can be switched between two different operating states.

[0082] The first valve disc 4 is positioned between the valve core 3 and the valve seat core 2, and the elastic member 5 is positioned between the first valve disc 4 and the valve seat core 2. The valve seat core 2 includes a valve seat core body 21 and a second valve disc 22, with the valve seat core body 21 connected to the second valve disc 22. A guide post 6 is connected to the first valve disc 4, which in turn is in a guide connection with the second valve disc 22, thereby ensuring that the first valve disc 4 can move axially between the valve core 3 and the valve seat core 2.

[0083] See Figure 8 As shown, a vehicle 100 according to another embodiment of the present application includes the damping solenoid valve 10 of the above embodiment.

[0084] According to the vehicle 100 of the embodiment of the present application, its damping solenoid valve 10 avoids contact between the elastic member 5 and the valve core 3 by arranging the elastic member 5 on the side of the first valve plate 4 away from the valve core 3, so that the elastic member 5 and the valve core 3 do not generate relative friction, thereby reducing the influence of the elastic member 5 on the valve core 3. At the same time, the pressure exerted by the medium on the first valve plate 4 will not affect the position of the valve core 3, thereby increasing the accuracy of the working process of the valve core 3, reducing the fluctuation of the flow curve of the damping solenoid valve 10, and improving the consistency and reliability of the product.

[0085] In the description of this application, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0086] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections, electrical connections, or communication; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0087] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0088] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A damping solenoid valve (10), characterized in that: include: A valve seat (1), wherein the valve seat (1) has an adjustment accommodating cavity (11) therein; a valve core (3), the valve core (3) being movably disposed in the regulating accommodating chamber (11); a first valve disc (4), the first valve disc (4) being movably disposed in the regulating accommodating chamber (11); and An elastic member (5), the elastic member (5) being arranged on a side of the first valve disc (4) facing away from the valve core (3), the elastic member (5) being used to apply an elastic force to the first valve disc (4) in a direction toward the valve core (3).

2. The damping solenoid valve (10) according to claim 1, characterized in that The damping solenoid valve (10) further comprises a valve seat core (2), wherein the valve seat core (2) is mounted on the valve seat (1), and the elastic member (5) is arranged between the first valve plate (4) and the valve seat core (2).

3. The damping solenoid valve (10) according to claim 2, characterized in that The elastic member (5) is a spring, and the valve seat core (2) includes a valve seat core body (21) and a second valve plate (22). The valve seat core body (21) is installed on the valve seat (1), and the second valve plate (22) is located on the side of the first valve plate (4) away from the valve core (3). The elastic member (5) is located between the first valve plate (4) and the second valve plate (22). One end of the elastic member (5) stops at the second valve plate (22), and the other end of the elastic member (5) stops at the first valve plate (4).

4. The damping solenoid valve (10) according to claim 3, characterized in that The damping solenoid valve (10) further comprises a guide column (6), wherein the guide column (6) passes through the second valve plate (22) and the first valve plate (4), and the elastic member (5) is sleeved on the periphery of the guide column (6).

5. The damping solenoid valve (10) according to claim 4, characterized in that The axis of the guide column (6) is parallel to or colinear with the axis of the valve core (3).

6. The damping solenoid valve (10) according to claim 2, characterized in that The valve seat (1) is provided with a first valve port (12), the valve seat core (2) is provided with a second valve port (23), and the valve core (3) and the first valve plate (4) are adapted to connect or isolate the first valve port (12) and the second valve port (23) when they move.

7. The damping solenoid valve (10) according to claim 6, characterized in that The damping solenoid valve (10) further includes a driving unit (7), wherein the driving unit (7) is used to drive the valve core (3) to move toward the valve seat core (2) so as to drive the first valve disc (4) to move toward the valve seat core (2); an end of the valve seat core (2) facing the first valve disc (4) is a medium passage port (24); the second valve port (23) is connected to the medium passage port (24); when the valve core (3) drives the first valve disc (4) to block the medium passage port (24), the first valve port (12) is isolated from the second valve port (23).

8. The damping solenoid valve (10) according to claim 7, characterized in that The valve seat core (2) comprises a valve seat core body (21) and a second valve disc (22), wherein the valve seat core body (21) is mounted on the valve seat (1), the second valve disc (22) is located on a side of the first valve disc (4) facing away from the valve core (3), and an end of the valve seat core body (21) facing the first valve disc (4) is formed as the medium passage (24); The second valve port (23) is formed on the second valve plate (22), or the second valve port (23) is formed in a gap at the connection between the second valve plate (22) and the valve seat core body (21).

9. The damping solenoid valve (10) according to claim 3 or 8, characterized in that: The second valve disc (22) is mounted on the valve seat core body (21), or the second valve disc (22) and the valve seat core body (21) are an integrated structure.

10. The damping solenoid valve (10) according to claim 7, characterized in that The driving part (7) comprises a stationary core (71) and a moving core (72), wherein a coil (711) is wound around the stationary core (71), and the moving core (72) is capable of moving relative to the stationary core (71) toward the valve seat core (2) when the coil (711) is energized, thereby driving the valve core (3) to move toward the valve seat core (2); The damping solenoid valve (10) further includes a reset member (74), wherein the reset member (74) is used to apply an elastic force to the moving core (72) so as to move the moving core (72) in a direction away from the valve seat core (2).

11. The damping solenoid valve (10) according to claim 10, characterized in that: The driving part (7) further comprises a valve needle (73), wherein the valve needle (73) is fixedly connected to the moving core (72), and the valve needle (73) is located on the side of the valve core (3) facing away from the first valve plate (4). The valve needle (73) is suitable for stopping the valve core (3), and the moving core (72) drives the valve core (3) to move toward the valve seat core (2) through the valve needle (73).

12. The damping solenoid valve (10) according to claim 10, characterized in that The damping solenoid valve (10) further comprises a housing (8), the static core (71) is fixed inside the housing (8), and the valve seat (1) is fixedly connected to the housing (8).

13. The damping solenoid valve (10) according to claim 10, characterized in that A magnetic isolation ring (9) is provided between the static core (71) and the valve core (3).

14. The damping solenoid valve (10) according to any one of claims 1-8 and 10-13, characterized in that: The first valve plate (4) is provided with a first valve hole (41), and the first valve hole (41) penetrates the first valve plate (4) along the thickness direction of the first valve plate (4); the valve core (3) has a valve core cavity (31), and the valve core cavity (31) is connected to the first valve hole (41); the stop position of the elastic member (5) and the first valve plate (4) is arranged relative to the valve core cavity (31).

15. A vehicle (100), characterized in that The invention comprises the damping solenoid valve (10) according to any one of claims 1 to 14.

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