Electric valve, active suspension and vehicle

Abstract

The utility model discloses an electric valve, an active suspension and a vehicle. The electric valve comprises a valve seat provided with a sliding groove; the valve element is arranged in the sliding groove and can slide along the sliding groove; the iron core is arranged on the first side of the valve seat, the valve element is arranged on the second side of the valve seat, and the iron core can drive the valve element to slide; a first balance hole is formed in the valve seat, the first end of the first balance hole is communicated with the gap between the iron core and the valve seat, the second end of the first balance hole is communicated with the gap between the valve seat and the valve element, and the gap between the iron core and the valve seat and the gap between the valve seat and the valve element are communicated through the first balance hole formed in the valve seat. The air pressure difference in the cavities at the upper and lower ends of the valve seat in the opening or closing process of the electric valve is reduced, and the difficulty in moving the iron core due to overlarge air pressure difference is avoided, so that the stability of the electric valve is improved.

Description

Technical Field

[0001] The present application relates to the field of valve technology, and in particular to an electric valve, an active suspension and a vehicle. Background Art

[0002] With the continuous development of the field of industrial control, electric valves are used in the fields of vehicles, chemicals, papermaking, food, medicine, power plants, steel mills, cities, drainage, gas, etc. because they are easy to use and safe; they can be controlled on-site or remotely; they can control a single valve or multiple valves in a centralized manner; they can perform simple on-off control or regulation control; and they can be programmed with electronic computers.

[0003] Common electric valves usually have a coil and the coil is configured to control the movement of the iron core and control the opening or closing of the electric valve. In the process of controlling the movement of the iron core, different cavities in the electric valve are not connected to each other. Since the movement of the iron core will compress the air in the cavity, a pressure difference will be formed between different cavities. When the pressure difference is too large, the components of the electric valve in the cavity will be impacted and damaged, which will reduce the stability and reliability of the electric valve. Utility Model Content

[0004] The present application provides an electric valve, comprising: a valve seat, which is provided with a slide groove; a valve core, which is arranged in the slide groove and can slide along the slide groove; an iron core, which is arranged on a first side of the valve seat, and the valve core is arranged on a second side of the valve seat, and the iron core can drive the valve core to slide; a first balancing hole is provided on the valve seat, a first end of the first balancing hole is connected to the gap between the iron core and the valve seat, and a second end of the first balancing hole is connected to the gap between the valve seat and the valve core.

[0005] Exemplarily, a second balancing hole is provided on the valve core, and the second balancing hole communicates with two sides of the valve core along the axial direction thereof.

[0006] Exemplarily, it also includes a valve stem, which passes through the valve seat, and a first end of the valve stem is connected to the iron core, and a second end of the valve stem is connected to the valve core.

[0007] Exemplarily, a guide hole is provided on the valve seat, and the valve stem passes through the valve seat through the guide hole. The valve seat is provided with at least one first balancing hole, and the first balancing hole and the guide hole are spaced apart along the radial direction of the valve core.

[0008] Exemplarily, a guide hole is provided on the valve seat, and the valve stem passes through the valve seat through the guide hole. The valve seat is provided with at least one first balancing hole, which is arranged at the edge of the guide hole and connected to the guide hole.

[0009] Exemplarily, at least one inner groove extending along the axial direction of the core is provided on the outer peripheral surface of the core.

[0010] Exemplarily, it also includes a magnetic isolation tube, which is connected to the valve seat, and the iron core is arranged in the magnetic isolation tube.

[0011] Exemplarily, a coil assembly is also included, wherein the coil assembly includes a coil and a terminal, and the terminal is connected to one axial end of the coil.

[0012] Exemplarily, a magnetic conductive ring is further included, and the magnetic conductive ring is arranged between the coil and the terminal along the axial direction of the coil.

[0013] Exemplarily, an elastic member is provided between the iron core and the valve seat, and the elastic member is configured to provide a restoring force for restoring the iron core after the coil is powered off.

[0014] According to another aspect of the present application, an active suspension is further provided, comprising the electric valve as described above.

[0015] According to another aspect of the present application, a vehicle is further provided, comprising the active suspension as described above or the electric valve as described above.

[0016] Exemplarily, the vehicle further includes an air spring, and the electric valve separates the air spring into a main air chamber and a secondary air chamber; when the electric valve is closed, the air paths of the main air chamber and the secondary air chamber are closed; when the electric valve is opened, the air paths of the main air chamber and the secondary air chamber are opened. According to the electric valve of the embodiment of the present application, the gap between the iron core and the valve seat and the gap between the valve seat and the valve core are connected by the first balancing hole arranged in the valve seat, so as to reduce the air pressure difference in the cavity at the upper and lower ends of the valve seat during the opening or closing of the electric valve, avoid the difficulty of moving the iron core due to excessive air pressure difference, and thus improve the stability of the electric valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] By describing the embodiments of the present application in more detail in conjunction with the accompanying drawings, the above and other purposes, features and advantages of the present application will become more apparent. The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation of the present application. In the accompanying drawings, the same reference numerals generally represent the same components or steps.

[0018] Figure 1 A schematic structural diagram of an electric valve according to an embodiment of the present application is shown;

[0019] Figure 2 A schematic diagram of the valve core structure of an electric valve according to an embodiment of the present application is shown;

[0020] Figure 3 A schematic structural diagram of a valve seat of an electric valve according to an embodiment of the present application is shown;

[0021] Figure 4 A top view of the upper surface of a valve seat of an electric valve according to an embodiment of the present application is shown;

[0022] Figure 5 A top view of an upper surface of a valve seat of an electric valve according to another embodiment of the present application is shown. DETAILED DESCRIPTION

[0023] Next, the present application will be described more completely in conjunction with the accompanying drawings, in which embodiments of the present application are shown. However, the present application can be implemented in different forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, providing these embodiments will make the disclosure thorough and complete, and will fully convey the scope of the present application to those skilled in the art. In the accompanying drawings, for clarity, the sizes and relative sizes of layers and regions may be exaggerated. The same reference numerals throughout represent the same elements.

[0024] It should be understood that when an element or layer is referred to as "on ...", "adjacent to ...", "connected to" or "coupled to" other elements or layers, it can be directly on, adjacent to, connected to or coupled to other elements or layers, or there can be intervening elements or layers. On the contrary, when an element is referred to as "directly on ...", "directly adjacent to ...", "directly connected to" or "directly coupled to" other elements or layers, there are no intervening elements or layers. It should be understood that although the terms first, second, third, etc. can be used to describe various elements, components, regions, layers and / or parts, these elements, components, regions, layers and / or parts should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or part from another element, component, region, layer or part. Therefore, without departing from the teachings of the present application, the first element, component, region, layer or part discussed below can be represented as a second element, component, region, layer or part.

[0025] Spatially relative terms such as "under," "below," "below," "under," "above," "above," etc., may be used herein for ease of description to describe the relationship of an element or feature shown in the figures to other elements or features. It should be understood that in addition to the orientations shown in the figures, the spatially relative terms are intended to include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is flipped, then the elements or features described as "under other elements" or "under" or "under" will be oriented as "on" the other elements or features. Therefore, the exemplary terms "under" and "under" may include both upper and lower orientations. The device may be oriented otherwise (rotated 90 degrees or other orientations) and the spatial descriptors used herein are interpreted accordingly.

[0026] The purpose of the terms used herein is only to describe specific embodiments and is not intended to be limiting of the present application. When used herein, the singular forms "a", "an", and "said / the" are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "consisting of" and / or "comprising", when used in this specification, determine the presence of the features, integers, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts and / or groups. When used herein, the term "and / or" includes any and all combinations of the relevant listed items.

[0027] Embodiments of the invention are described herein with reference to cross-sectional views that are schematic diagrams of ideal embodiments (and intermediate structures) of the present application. Thus, variations from the shapes shown due to, for example, manufacturing techniques and / or tolerances can be expected. Therefore, embodiments of the present application should not be limited to the specific shapes of the zones shown herein, but include shape deviations due to, for example, manufacturing. For example, an implanted region shown as a rectangle typically has rounded or curved features and / or an implant concentration gradient at its edges, rather than a binary change from an implanted region to a non-implanted region. Similarly, a buried region formed by implantation may result in some implantation in the region between the buried region and the surface through which the implantation is performed. Therefore, the regions shown in the figures are schematic in nature, and their shapes are not intended to show the actual shape of the region of the device and are not intended to limit the scope of the present application.

[0028] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by ordinary technicians in the field of this application. It will also be understood that terms such as those defined in commonly used dictionaries should be understood to have a meaning consistent with their meaning in the context of the relevant art and / or this specification, and should not be interpreted in an ideal or overly formal sense unless expressly defined as such herein.

[0029] In order to thoroughly understand the present application, detailed steps and structures will be presented in the following description to illustrate the technical solution proposed by the present application. The preferred embodiments of the present application are described in detail below, but in addition to these detailed descriptions, the present application may also have other implementations.

[0030] Combine the following Figure 1 The electric valve according to an embodiment of the present application is described, comprising:

[0031] The valve seat 210 is provided with a slide groove;

[0032] A valve core 220, the valve core 220 is disposed in the slide groove and can slide along the slide groove;

[0033] An iron core 250, the iron core 250 is disposed on a first side of the valve seat 210, and the valve core 220 is disposed on a second side of the valve seat 210, and the iron core can drive the valve core 220 to slide;

[0034] The valve seat 210 is provided with a first balancing hole 211 , a first end of the first balancing hole 211 is connected to the gap between the iron core 250 and the valve seat 210 , and a second end of the first balancing hole 211 is connected to the gap between the valve seat 210 and the valve core 220 .

[0035] like Figure 1 As shown in , in one example, the electric valve further includes a base, which is arranged below the valve core, and an air flow channel 110 is arranged in the base 100. When the valve core 220 moves downward, the end of the valve core 220 facing the air flow pipeline contacts the air flow channel 110 in the base 100, and the first sealing gasket 223 is used to seal the air flow channel 110, so that the air flow pipeline is closed; when the valve core 220 moves upward, the end of the valve core 220 facing the air flow pipeline is separated from the air flow channel 110 in the base 100, so that the air flow pipeline is opened. In one example, as Figure 1 As shown, a sealing ring 120 is disposed outside the base 100 .

[0036] Reference Figure 1 The first end of the first balancing hole 211 is connected to the gap between the iron core 250 and the valve seat 210, and the second end of the first balancing hole 211 is connected to the gap between the valve seat 210 and the valve core 220. The first balancing hole 211 reduces the air pressure difference between the gap between the iron core 250 and the valve seat 210 and the gap between the valve seat 210 and the valve core 220. When the iron core 250 drives the valve core 220 to move in a direction away from the side of the base 100, air enters the gap between the iron core 250 and the valve seat 210 from the valve core 220 through the first balancing hole 211, so that the valve core 220 can move in a direction away from the side of the base 100, avoiding the air pressure difference between the gap between the iron core 250 and the valve seat 210 and the gap between the valve seat 210 and the valve core 220 being too large, which makes it difficult for the valve core 220 to move, thereby improving the stability of the electric valve.

[0037] According to the electric valve of the embodiment of the present application, the gap between the iron core and the valve seat and the gap between the valve seat and the valve core are connected by the first balancing hole arranged in the valve seat, thereby reducing the air pressure difference in the cavity at the upper and lower ends of the valve seat during the opening or closing of the electric valve, avoiding difficulty in moving the iron core due to excessive air pressure difference, thereby improving the stability of the electric valve.

[0038] Exemplarily, a second balancing hole is provided on the valve core, a first end of the second balancing hole is connected to the gap between the valve seat and the valve core, and a second end of the second balancing hole is connected to the outside. Figure 2 As shown in FIG. 1 , in one example, a second balancing hole 221 is provided on the valve core 220. Figure 1 The first end of the second balancing hole 221 is connected to the gap between the valve seat 210 and the valve core 220, and the second end of the second balancing hole 221 is connected to the outside world. The second balancing hole 221 reduces the pressure difference between the gap between the valve seat 210 and the valve core 220 and the outside world. When the iron core 250 drives the valve core 220 to move toward the base 100, air enters the gap between the valve seat 210 and the valve core 220 from the outside world through the second balancing hole 221, so that the valve core 220 can move to one side of the base 100, avoiding the gap between the valve seat 210 and the valve core 220 and the outside pressure difference being too large, which makes it difficult for the valve core 220 to move, thereby improving the stability of the electric valve.

[0039] like Figure 1 As shown in , in one example, the electric valve includes a valve stem 230, the valve stem 230 passes through the valve seat 210, the first end of the valve stem 230 is connected to the iron core 250, and the second end of the valve stem 230 is connected to the valve core 220. Exemplarily, a guide hole is provided on the valve seat, the valve stem passes through the valve seat through the guide hole, and at least one first balancing hole is provided on the valve seat, and the first balancing hole and the guide hole are spaced apart along the radial direction of the valve core. Figure 3 As shown, in one example, a guide hole 213 is provided on the valve seat 210. Figure 1 As shown, both ends of the valve stem 230 are connected to the iron core 250 and the valve core 220, and part of the valve stem 230 is inserted into the valve seat 210 through the guide hole 213. Figure 3 As shown in , a guide hole 213 is provided in the valve seat 210, and the guide hole 213 connects the upper surface and the lower surface of the valve seat 210, and a part of the valve stem 230 is inserted into the guide hole 213. In one example, the diameter of the guide hole 213 in the valve seat 210 is slightly larger than the diameter of the valve stem 230, so that when a part of the valve stem 230 is inserted into the guide hole 213, the valve stem 230 moves up and down stably with the electric valve switch, and does not wobble in a direction perpendicular to the moving direction of the valve stem 230, and the iron core 250 and the valve core 220 connected at both ends of the valve stem 230 move up and down stably without wobble. Figure 3As shown, in one example, the first balancing hole 211 communicates with the upper surface and the lower surface of the valve seat 210. Figure 4 As shown in FIG. 2 , in one example, the first balancing hole 211 is located outside the guide hole 213 , and two or more balancing holes 211 are provided in the valve seat 210 .

[0040] Exemplarily, a guide hole is provided on the valve seat, and the valve stem passes through the valve seat through the guide hole. The valve seat is provided with at least one first balancing hole, which is provided at the edge of the guide hole and communicates with the guide hole. Figure 5 As shown in , in one example, the guide hole 213 is a special-shaped hole, and the valve stem 230 passes through the valve seat 210 through the guide hole 213, and is connected to at least one first balancing hole 211 at the edge of the guide hole 213. When part of the valve stem 230 is inserted into the guide hole 213, the inside of the guide hole 213 is filled with part of the valve stem 230, and the first balancing hole 211 at the edge of the guide hole 213 is connected to the gap between the iron core 250 and the valve seat 210 and the gap between the valve seat 210 and the valve core 220.

[0041] Exemplarily, at least one inner groove extending along the axial direction of the core is provided on the outer peripheral surface of the core. Figure 1 As shown in , in one example, the iron core 250 is located in the accommodation cavity surrounded by the magnetic isolation tube 260 and the valve seat 210. The magnetic isolation tube 260 and the valve seat 210 are sealed. If the accommodation cavity is not opened, the accommodation cavity will form a closed space, and the iron core 250 will be blocked by air when moving, and moisture (caused by the high-pressure gas source) may also gather in the accommodation cavity, affecting the performance of the electric valve. At least one inner groove extending along the axial direction of the iron core is provided on the outer peripheral surface of the iron core 250. The inner groove connects the gap between the iron core 250 and the magnetic isolation tube 260 above the iron core 250 and the gap between the iron core 250 and the valve seat 210, and is used to reduce the air pressure difference between the gap between the iron core 250 and the magnetic isolation tube 260 and the gap between the iron core 250 and the valve seat 210, so as to prevent the iron core 250 from being difficult to move due to excessive air pressure difference, and to prevent moisture from gathering in the accommodation cavity.

[0042] Exemplarily, the electric valve further includes a magnetic isolation tube, the magnetic isolation tube is connected to the valve seat, and the iron core is arranged in the magnetic isolation tube. Figure 1 As shown in , the magnetic isolation tube 260 is connected to the valve seat 210 , and the iron core 250 is disposed in the magnetic isolation tube 260 .

[0043] Exemplarily, the electric valve further includes a coil assembly, the coil assembly includes a coil and a terminal, and the terminal is connected to one end of the coil in the axial direction. Exemplarily, the electric valve further includes a magnetic conductive ring, and the magnetic conductive ring is arranged between the coil and the terminal along the axial direction of the coil. Figure 1 As shown, in one example, the coil 310 is disposed outside the magnetic isolation tube 260; the terminal 320 is connected to the coil 310 and is disposed above the magnetic isolation tube 260. Figure 1 As shown, in one example, the magnetic conductive ring 330 is disposed between the coil 310 and the terminal 320. Figure 1 As shown, in one example, the electric valve further includes a housing 400, the terminal 320 is connected to the coil 310 and the terminal 320 is disposed above the magnetic isolation tube 260, and the terminal 320, the housing 400 and the base 100 form a receiving space. Figure 1 As shown, the magnetic ring 330 is disposed between the coil 310 and the terminal 320. When the coil 310 is energized to generate a magnetic field, the magnetic ring 330 obtains a magnetic moment in the same direction as the magnetic field under the action of the magnetic field, thereby driving the iron core 250 to move.

[0044] In one embodiment, if Figure 1 As shown, the electric valve also includes: a plug 600, which is arranged at the end of the shell 400, and a terminal 320 is arranged in the plug 600, and the terminal 320 is electrically connected to the coil 310. When the plug 600 is plugged into an external power source, the terminal 320 is electrically connected to the external power source, and can provide electrical energy for the coil 310; a sealing seat 500, and the sealing seat 500 forms a seal between the plug 600 and the shell 400.

[0045] Exemplarily, an elastic member is provided between the iron core and the valve seat, and the elastic member is configured to provide a restoring force to restore the iron core after the coil is powered off.

[0046] In one embodiment, if Figure 1 As shown, the electric valve further includes: an elastic member 240, the elastic member 240 is sleeved on the valve stem 230, the first end of the elastic member 240 abuts against the iron core 250, and the second end of the elastic member 240 abuts against the valve seat 210. When the coil 310 is powered off, the elastic member 240 can provide a reset force to reset the iron core 250. The elastic force of the elastic member 240 can drive the iron core 250 to reset, and then the iron core 250 drives the valve core 220 to reset synchronously through the valve stem 230. Optionally, the elastic member 240 can be a spring or other suitable elastic member.

[0047] In one example, when the coil 310 is energized, the coil 310 is configured to: generate a magnetic field to drive the iron core 250 to move toward the base 100 side until the valve core is sealed with the base 100, and the electric valve is closed;

[0048] When the coil is not energized, the elastic member 240 is configured to drive the iron core 250 to move away from the base 100 until a gap is formed between the valve core 220 and the base 100, and the electric valve is opened.

[0049] When the coil 310 is energized, the coil 310 is configured to generate a magnetic field to drive the iron core 250 to move toward the base 100 until the valve core 220 and the base 100 are sealed. At this time, the gap between the valve core 220 and the base 100 in the electric valve is closed, so that the airflow pipeline 110 is closed and the electric valve is closed.

[0050] refer to Figure 1 In one example, when the coil 310 is not energized, the elastic member 240 is configured to: drive the iron core 250 to move toward the side away from the base 100 until there is a gap between the valve core 220 and the base 100, at which time the gap between the valve core 220 and the base 100 in the electric valve opens the airway, exposing the airflow pipeline 110, and the electric valve opens. In one example, when the elastic member 240 is configured to: when the iron core 250 moves toward the side of the base 100 to seal the valve core 220 and the base 100, the airflow pipeline 110 is closed and the spring 240 is in a stretched state; when the elastic member 240 is configured to: when the iron core 250 moves toward the side away from the base 100 to create a gap between the valve core 220 and the base 100, exposing the airflow pipeline 110 to open the electric valve, the elastic member is in a normal state.

[0051] According to another aspect of the present application, an active suspension is also provided, characterized in that it includes the above-mentioned electric valve.

[0052] According to another aspect of the present application, a vehicle is also provided, comprising the above-mentioned active suspension or the above-mentioned electric valve.

[0053] Exemplarily, the vehicle further includes an air spring, and the electric valve separates the air spring into a main air chamber and a secondary air chamber;

[0054] When the electric valve is closed, the air paths of the main air chamber and the auxiliary air chamber are closed; when the electric valve is opened, the air paths of the main air chamber and the auxiliary air chamber are opened. In one example, the air spring in the vehicle includes the above-mentioned electric valve. When the air spring needs to be adjusted, the gas content in the air spring can be adjusted by opening and closing the electric valve. In one example, an electric valve is provided in the air spring, and the air spring is also connected to an additional air chamber. When the electric valve is opened, the air paths of the main air chamber and the auxiliary air chamber are opened. When the additional air chamber is configured to add air to the air spring, the height of the equilibrium position of the air spring increases, thereby increasing the height of the vehicle suspension; when the electric valve is opened, and the additional air chamber is configured to extract air from the air spring, the height of the equilibrium position of the air spring decreases, thereby decreasing the height of the vehicle suspension; when the electric valve is closed, the air paths of the main air chamber and the auxiliary air chamber are closed, so that the height of the equilibrium position of the air spring remains unchanged, thereby keeping the height of the vehicle suspension unchanged.

[0055] According to the electric valve of the embodiment of the present application, the gap between the iron core and the valve seat and the gap between the valve seat and the valve core are connected by the first balancing hole arranged in the valve seat, thereby reducing the air pressure difference in the cavity at the upper and lower ends of the valve seat during the opening or closing of the electric valve, avoiding difficulty in moving the iron core due to excessive air pressure difference, thereby improving the stability of the electric valve.

[0056] It should be noted that the above embodiments illustrate the present application rather than limit the present application, and that those skilled in the art may design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbol between brackets should not be constructed as a limitation on the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "one" or "an" preceding an element does not exclude the presence of multiple such elements. The present application may be implemented with the aid of hardware including several different elements and with the aid of appropriately programmed computers. In a unit claim listing several on-board systems, several of these on-board systems may be embodied by the same hardware item. The use of the words first, second, and third, etc. does not indicate any order. These words may be interpreted as names.

[0057] The above is only a specific implementation method or description of a specific implementation method of the present application, and the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. The protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. An electric valve, characterized in that: include: A valve seat, wherein the valve seat is provided with a slide groove; a valve core, the valve core being disposed in the slide groove and being able to slide along the slide groove; An iron core, wherein the iron core is arranged on a first side of the valve seat, the valve core is arranged on a second side of the valve seat, and the iron core can drive the valve core to slide; The valve seat is provided with a first balancing hole, a first end of the first balancing hole is connected to the gap between the iron core and the valve seat, and a second end of the first balancing hole is connected to the gap between the valve seat and the valve core.

2. The electric valve according to claim 1, characterized in that: The valve core is provided with a second balancing hole, and the second balancing hole communicates with two sides of the valve core along the axial direction thereof.

3. The electric valve according to claim 1, characterized in that: It also includes a valve stem, which passes through the valve seat, and a first end of the valve stem is connected to the iron core, and a second end of the valve stem is connected to the valve core.

4. The electric valve according to claim 3, characterized in that: The valve seat is provided with a guide hole, and the valve stem passes through the valve seat through the guide hole. The valve seat is provided with at least one first balancing hole, and the first balancing hole and the guide hole are spaced apart in the radial direction of the valve core.

5. The electric valve according to claim 3, characterized in that: The valve seat is provided with a guide hole, and the valve stem passes through the valve seat through the guide hole. The valve seat is provided with at least one first balancing hole, which is arranged at the edge of the guide hole and connected to the guide hole.

6. The electric valve according to claim 1, characterized in that: At least one inner groove extending along the axial direction of the core is arranged on the outer peripheral surface of the core.

7. The electric valve according to claim 1, characterized in that: It also includes a magnetic isolation tube, which is connected to the valve seat, and the iron core is arranged in the magnetic isolation tube.

8. The electric valve according to claim 1, characterized in that: It also includes a coil assembly, which includes a coil and a terminal, and the terminal is connected to one axial end of the coil.

9. The electric valve according to claim 8, characterized in that: It also includes a magnetic conductive ring, which is arranged between the coil and the terminal along the axial direction of the coil.

10. The electric valve according to claim 8, characterized in that: An elastic member is arranged between the iron core and the valve seat, and the elastic member is configured to provide a restoring force to restore the iron core after the coil is powered off.

11. An active suspension, characterized in that: It comprises an electric valve according to any one of claims 1-10.

12. A vehicle, characterized in that: It comprises the active suspension according to claim 11 or the electric valve according to any one of claims 1-10.

13. The vehicle according to claim 12, characterized in that Also included is an air spring, wherein the electric valve separates the air spring into a main air chamber and a secondary air chamber; When the electric valve is closed, the gas paths of the main air chamber and the auxiliary air chamber are closed; When the electric valve is opened, the air paths of the main air chamber and the auxiliary air chamber are opened.

Images