Valve body assembly, electromagnetic valve and vehicle

Abstract

The utility model discloses a valve body assembly, an electromagnetic valve and a vehicle. The valve body assembly comprises a valve rod, a valve element and a valve element, the valve rod penetrates through the valve seat, and an inner balance groove is formed in the valve seat; and the inner balance pad is arranged in the inner balance groove, and the valve rod is in interference fit with the inner balance pad. The inner balance groove is formed in the valve seat, the inner balance pad is placed in the inner balance groove, and when the valve rod penetrates through the valve seat, the inner balance pad can be matched with the valve rod, so that the situation that fluctuating air pressure enters the containing cavity of the core iron is reduced, meanwhile, shaking of the valve rod is reduced, and the stability of a product is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of solenoid valves, in particular to a valve body component, a solenoid valve and a vehicle. Background Art

[0002] For cars, different driving modes need to be changed according to different road conditions during use, and different driving modes correspond to different air spring states (for example, the lifting mode requires inflating the air spring to raise the ground clearance of the chassis). The switching speed between different driving modes directly affects the user's experience. At present, in the common automotive electronic air spring systems on the market, in order to achieve various necessary functions, such as rising or falling, it is necessary to realize the internal exhaust and inflation conversion, so a solenoid valve is required for conversion control.

[0003] In the related art, when the core iron is driven by the coil assembly to drive the valve stem to move in the axial direction, fluctuating air pressure is easily allowed to enter the accommodating cavity of the core iron, resulting in poor stability of the solenoid valve. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a valve body assembly, in which an inner balancing groove is provided on the valve seat, and an inner balancing pad is placed in the inner balancing groove, and cooperates with the valve stem to reduce the fluctuating air pressure entering the accommodating cavity of the core iron, and at the same time reduce the shaking of the valve stem, thereby improving the stability of the product.

[0005] The utility model further proposes a solenoid valve

[0006] The utility model further provides a vehicle.

[0007] The valve body assembly according to the first aspect of the utility model is used for a solenoid valve and includes: a valve stem; a valve seat, wherein the valve stem passes through the valve seat, and an inner balancing groove is provided in the valve seat; an inner balancing pad, wherein the inner balancing pad is provided in the inner balancing groove, and the valve stem and the inner balancing pad are interference fit.

[0008] According to the valve body assembly of the embodiment of the utility model, an inner balancing groove is provided on the valve seat, and the inner balancing pad is placed in the inner balancing groove. At the same time, it cooperates with the valve stem to reduce the fluctuating air pressure entering the core iron accommodating cavity and improve the stability of the product.

[0009] According to some embodiments of the utility model, a through hole penetrating the valve seat in the axial direction is provided in the valve seat, an inner balancing groove is provided inside the through hole, the inner balancing groove is an annular groove, and the inner balancing gasket is arranged in the inner balancing groove.

[0010] According to some embodiments of the utility model, the through hole includes: a guide hole section, the guide hole section is arranged at one end of the inner balancing groove away from the valve stem, one end of the guide hole section is connected to the inner balancing groove and the other end is connected to the end of one end of the through hole, and the valve stem cooperates with the guide hole section.

[0011] According to some embodiments of the utility model, the through hole includes: a guide hole section, the guide hole section is arranged at one end of the through hole away from the valve stem, the end of the guide hole section away from the valve stem is connected to the end of one end of the through hole, and the guide hole section is provided with the inner balancing groove.

[0012] According to some embodiments of the utility model, the through hole includes: a through hole section, the through hole section is arranged at one end of the inner balancing groove close to the valve stem, and the end of the through hole section close to the valve stem is expanded.

[0013] According to some embodiments of the present utility model, at least one internal balancing groove is provided in the valve seat, and at least one internal balancing pad is provided in at least one internal balancing groove.

[0014] According to some embodiments of the present utility model, the valve body assembly further includes: a core iron, which is disposed at an end of the valve stem away from the valve seat, and the core iron is fixedly connected to one end of the valve stem.

[0015] According to some embodiments of the present invention, the core iron can move toward the valve seat or away from the valve seat, and a variable chamber is formed between the valve seat and the core iron.

[0016] According to some embodiments of the utility model, a valve port is provided at one end of the valve seat away from the valve stem; and the valve body assembly further comprises: a valve core, the valve core is arranged in the valve port, and at least a portion of the valve stem passes through the valve seat and is fixedly connected to the valve core.

[0017] The solenoid valve according to the second embodiment of the utility model includes: the valve body assembly described above.

[0018] A vehicle according to an embodiment of the third aspect of the utility model includes: the solenoid valve described above.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 is a structural schematic diagram of a solenoid valve according to an embodiment of the utility model from a first perspective;

[0022] Figure 2 is a structural schematic diagram of a solenoid valve according to an embodiment of the utility model from a second viewing angle;

[0023] Figure 3 is a cross-sectional schematic diagram of a solenoid valve according to an embodiment of the utility model;

[0024] Figure 4 It is a partial structural schematic diagram of a valve body assembly according to an embodiment of the utility model;

[0025] Figure 5 It is a cross-sectional schematic diagram of a valve seat according to an embodiment of the utility model.

[0026] Reference numerals:

[0027] S, solenoid valve;

[0028] 100, base;

[0029] 200, valve body assembly; 210, valve stem; 220, valve core; 230, core iron; 240, valve seat; 241, inner balance groove; 242, guide hole section; 243, through hole section; 244, valve port; 250, spring; 260, magnetic isolation tube; 270, inner balance pad;

[0030] 300, coil assembly; 310, coil; 320, terminal; 330, magnetic ring;

[0031] 400, housing; 500, sealing seat. DETAILED DESCRIPTION

[0032] The embodiments of the present utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present utility model are described in detail below.

[0033] Reference below Figure 1-Figure 5 A valve body assembly and a solenoid valve according to an embodiment of the utility model are described.

[0034] like Figure 1-Figure 5 As shown, the valve body assembly 200 includes a valve stem 210 , a valve seat 240 and an inner balancing pad 270 .

[0035] The valve stem 210 passes through the valve seat 240 , an inner balancing groove 241 is provided in the valve seat 240 , an inner balancing pad 270 is provided in the inner balancing groove 241 , and the valve stem 210 and the inner balancing pad 270 are interference fit.

[0036] In this way, when the valve stem 210 is inserted into the valve seat 240 , the valve stem 210 and the inner balance pad 270 in the valve seat 240 are interference-fitted, which can reduce the fluctuating air pressure entering the accommodating cavity of the core iron 230 and improve the stability of the product.

[0037] In addition, the interference fit between the valve stem 210 and the inner balance pad 270 can also reduce the shaking of the valve stem 210.

[0038] Exemplarily, the inner balancing pad 270 may be a flexible pad.

[0039] Among them, a core iron 230 is provided at one end of the valve stem 210 away from the valve seat 240, and the core iron 230 can drive the valve stem 210 to move in the axial direction. The design of the inner balance pad 270 can reduce the fluctuating air pressure entering the accommodating cavity of the core iron 230.

[0040] Therefore, by providing an inner balancing groove 241 in the valve seat 240 and providing an inner balancing pad 270 in the inner balancing groove 241 so that the valve stem 210 and the inner balancing pad 270 have an interference fit, the impact of pressure fluctuations on the core iron 230 can be effectively reduced, and the shaking of the valve stem 210 can be effectively reduced, thereby greatly improving the stability of the solenoid valve S.

[0041] In some embodiments, a through hole is provided in the valve seat 240 which penetrates the valve seat 240 in the axial direction. An inner balancing groove 241 is provided inside the through hole. The inner balancing groove 241 is an annular groove. The inner balancing pad 270 is arranged in the inner balancing groove 241 .

[0042] In this way, the valve seat 240 is provided with a through hole passing through itself, and an annular internal balancing groove 241 is provided in the through hole. When the valve stem 210 passes through the through hole, the outer side surface of the valve stem 210 can be interference fit with the internal balancing pad 270, thereby reducing the fluctuating air pressure entering the accommodating cavity of the core iron 230.

[0043] The shape of the inner balancing pad 270 is adapted to the valve stem 210 .

[0044] In one embodiment of the utility model, the through hole includes: a guide hole section 242, which is arranged at one end of the inner balancing groove 241 away from the valve stem 210, one end of the guide hole section 242 is connected to the inner balancing groove 241, and the other end is connected to the end of one end of the through hole, and the valve stem 210 cooperates with the guide hole section 242.

[0045] In this way, the through hole includes a guide hole section 242, one end of the guide hole section 242 is connected to the inner balancing groove 241, and the other end is connected to the end of one end of the through hole, so that when the valve stem 210 passes through the through hole, the valve stem 210 not only has an interference fit with the inner balancing pad 270, but also has a guiding fit with the guide hole section 242, so as to better reduce the shaking and collision of the valve stem 210.

[0046] In another embodiment of the utility model, the through hole includes: a guide hole section 242, the guide hole section 242 is arranged at one end of the through hole away from the valve stem 210, the end of the guide hole section 242 away from the valve stem 210 is connected to the end of one end of the through hole, and the guide hole section 242 is provided with an internal balancing groove 241.

[0047] So, reference Figure 5 As shown, the guide hole section 242 is arranged at one end of the through hole away from the valve stem 210, and the end of the guide hole section 242 away from the valve stem 210 is connected to the end of one end of the through hole, and an internal balancing groove 241 is provided in the guide hole section 242, so that when the valve stem 210 passes through the through hole, it can be guided and matched with the valve seat 240 under the guiding action of the guide hole section 242, and then interfered with the internal balancing pad 270 in the guide hole section 242, thereby effectively reducing the impact of pressure fluctuations on the core iron 230 and improving the stability of the solenoid valve S.

[0048] In some embodiments, the through hole includes: a through hole section 243, which is disposed at one end of the inner balancing groove 241 close to the valve stem 210, and one end of the through hole section 243 close to the valve stem 210 is flared.

[0049] So, reference Figure 5 As shown, the through hole includes a through hole section 243. Since the end of the through hole section 243 close to the valve stem 210 is expanded, when the valve stem 210 passes through the through hole, it can first pass through the through hole smoothly under the expansion effect of the through hole section 243, and then have an interference fit with the internal balance pad 270 in the internal balance groove 241, which effectively ensures that the valve stem 210 can pass through the valve seat 240 more smoothly and have an interference fit with the internal balance pad 270.

[0050] In some embodiments, at least one inner balancing groove 241 is disposed in the valve seat 240 , and at least one inner balancing pad 270 is disposed in the at least one inner balancing groove 241 .

[0051] In the embodiment disclosed in the present utility model, an inner balancing groove 241 is provided in the valve seat 240 , and an inner balancing pad 270 is provided in the inner balancing groove 241 , which can well reduce the impact of pressure fluctuation on the core iron 230 .

[0052] Of course, more than two internal balancing grooves 241 may be provided in the valve seat 240 to better reduce the fluctuating air pressure from entering the accommodating cavity of the core iron 230 .

[0053] The utility model does not specifically limit the number of the inner balancing grooves 241 and the inner balancing pads 270 .

[0054] In some embodiments, the valve body assembly 200 further includes: a core iron 230 , which is disposed at one end of the valve stem 210 away from the valve seat 240 , and the core iron 230 is fixedly connected to one end of the valve stem 210 .

[0055] So, see Figure 3 As shown, a core iron 230 is fixedly connected to one end of the valve stem 210 away from the valve seat 240 , and the core iron 230 can drive the valve stem 210 to move in the axial direction relative to the valve seat 240 .

[0056] The core iron 230 can move toward the valve seat 240 or away from the valve seat 240 , and a variable chamber is formed between the valve seat 240 and the core iron 230 .

[0057] In this way, the core iron 230 can move toward the side of the valve seat 240, or move away from the valve seat 240, so that a variable chamber is formed between the valve seat 240 and the core iron 230. Since the valve stem 210 and the internal balance pad 270 in the valve seat 240 have an interference fit, the fluctuating air pressure that enters the variable chamber can be effectively reduced, thereby affecting the axial movement of the core iron 230.

[0058] In addition, a valve port 244 is provided at one end of the valve seat 240 away from the valve stem 210 ; and the valve body assembly 200 further includes: a valve core 220 , which is disposed in the valve port 244 , and at least a portion of the valve stem 210 passes through the valve seat 240 and is fixedly connected to the valve core 220 .

[0059] So, see Figure 3 As shown, a valve port 244 is provided at one end of the valve seat 240 away from the valve stem 210 , the valve port 244 is connected to the through hole, the valve core 220 is arranged in the valve port 244 , at least a portion of the valve stem 210 passes through the through hole of the valve seat 240 and is fixedly connected to the valve core 220 .

[0060] The solenoid valve S according to the embodiment of the second aspect of the utility model includes: a valve body assembly 200 .

[0061] The solenoid valve S further includes: a base 100, a receiving chamber is formed between the base 100 and the valve seat 240, the receiving chamber is provided with an inlet and an outlet, and the valve stem 210 can drive the valve core 220 to move axially in the receiving chamber to seal or connect the air path between the inlet and the outlet.

[0062] In this way, the base 100 is arranged at one end of the valve seat 240 away from the valve stem 210, and forms a accommodating cavity between the valve seat 240, wherein the inlet of the accommodating cavity is used to connect one air chamber, and the outlet is used to connect another air chamber. When the valve stem 210 drives the valve core 220 to move axially in the accommodating cavity, sealing or connecting the air path between the inlet and the outlet can be achieved.

[0063] In the embodiment of the present utility model, an inlet is provided on the side of the accommodating cavity, and an outlet is provided on the base 100 .

[0064] In addition, the solenoid valve S further includes: a coil assembly 300 , which is disposed around the valve body assembly 200 and electromagnetically cooperates with the valve body assembly 200 to drive the valve stem 210 to move axially.

[0065] Specifically, the coil assembly 300 includes a coil 310 , a terminal 320 , and a magnetic conductive ring 330 , wherein the magnetic conductive ring 330 is placed between the coil 310 and the terminal 320 .

[0066] The solenoid valve S further comprises: a housing 400 and a sealing seat 500 . Also, the valve body assembly 200 further comprises: a spring 250 and a magnetic isolation tube 260 .

[0067] Among them, the spring 250 is placed between the core iron 230 and the valve seat 240, the magnetic isolation tube 260 is externally arranged on the outside of the core iron 230 and connected to the valve seat 240, the coil 310 is connected to the terminal 320 and then jacketed on the magnetic isolation tube 260, and the base 100, the valve body assembly 200 and the coil assembly 300 are combined together through the outer shell 400, and the sealing seat 500 is fixed to the outer periphery of the outer shell 400 and the coil assembly 300.

[0068] When powered on, the coil 310 generates a magnetic field to drive the core iron 230 to move toward the base 100, so that the valve stem 210 drives the valve core 220 to move axially in the accommodating cavity, thereby achieving sealing or connecting the gas path between the inlet and the outlet.

[0069] A vehicle according to an embodiment of the third aspect of the utility model includes: a solenoid valve S.

[0070] Therefore, by providing an inner balancing groove 241 in the valve seat 240 and providing an inner balancing pad 270 in the inner balancing groove 241 so that the valve stem 210 and the inner balancing pad 270 have an interference fit, the impact of pressure fluctuations on the core iron 230 can be effectively reduced, and the shaking of the valve stem 210 can be effectively reduced, thereby greatly improving the stability of the solenoid valve S.

[0071] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0072] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means 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 utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0073] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A valve body assembly for a solenoid valve, characterized in that: include: Valve stem; A valve seat, wherein the valve stem passes through the valve seat, and an inner balancing groove is provided in the valve seat; An inner balancing pad is arranged in the inner balancing groove, and the valve stem and the inner balancing pad are interference fit.

2. The valve body assembly according to claim 1, characterized in that: A through hole penetrating the valve seat in the axial direction is provided in the valve seat, the inner side of the through hole is provided with the inner balancing groove, the inner balancing groove is an annular groove, and the inner balancing gasket ring is arranged in the inner balancing groove.

3. The valve body assembly according to claim 2, characterized in that: The through hole includes: a guide hole section, which is arranged at one end of the inner balancing groove away from the valve stem, one end of the guide hole section is connected to the inner balancing groove and the other end is connected to the end of one end of the through hole, and the valve stem cooperates with the guide hole section.

4. The valve body assembly according to claim 2, characterized in that: The through hole comprises: a guide hole section, the guide hole section is arranged at one end of the through hole away from the valve stem, the end of the guide hole section away from the valve stem is connected to the end of one end of the through hole, and the guide hole section is provided with the inner balancing groove.

5. The valve body assembly according to claim 2, characterized in that: The through hole comprises a through hole section, the through hole section is arranged at one end of the inner balancing groove close to the valve stem, and the end of the through hole section close to the valve stem is in a flared shape.

6. The valve body assembly according to claim 1, characterized in that: At least one inner balancing groove is disposed in the valve seat, and at least one inner balancing pad is disposed in at least one inner balancing groove.

7. The valve body assembly according to claim 1, characterized in that: It also includes: a core iron, which is arranged at one end of the valve stem away from the valve seat, and the core iron is fixedly connected to one end of the valve stem.

8. The valve body assembly according to claim 7, characterized in that: The core iron can move toward the valve seat or away from the valve seat, and a variable chamber is formed between the valve seat and the core iron.

9. The valve body assembly according to claim 1, characterized in that: The valve seat has a valve port at one end away from the valve stem; and The valve body assembly further includes: a valve core, which is arranged in the valve port, and at least a portion of the valve stem is passed through the valve seat and fixedly connected to the valve core.

10. A solenoid valve, characterized in that: include: The valve body assembly according to any one of claims 1 to 9.

11. A vehicle, characterized in that: include: The solenoid valve according to any one of claims 10.

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