Valve body assembly, electromagnetic valve, active suspension and vehicle

Abstract

The utility model discloses a valve body assembly, an electromagnetic valve, an active suspension and a vehicle, the valve body assembly comprises a valve rod, a valve core, a valve core, a valve core and a valve core, the valve element is arranged at one end of the valve rod, a first reaming section is arranged at the end, close to the valve rod, of the valve element, one end of the valve rod penetrates into the first reaming section, and the flaring part abuts against the inner side face of the first reaming section. The structure is simple to process, and the connection reliability between the screw rod and the valve core is high.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic valves, in particular to a valve body component, an electromagnetic valve, an active suspension 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, the valve body assembly mostly adopts a direct threaded mechanical fastening connection between the valve stem and the valve core, which is easy to loosen and has poor reliability. 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, which eliminates the threaded mechanical fastening connection method, greatly reduces the processing difficulty and cost, can effectively reduce the length of the valve stem, and can well ensure the connection reliability between the valve stem and the valve core.

[0005] The utility model also provides a solenoid valve.

[0006] The utility model further proposes an active suspension.

[0007] The utility model further provides a vehicle.

[0008] The valve body assembly according to the first aspect of the present invention is used for a solenoid valve and includes: a valve stem, wherein a first flaring portion is provided at one end of the valve stem in the axial direction; a valve core, wherein a first flaring section is provided at one end of the valve core close to the valve stem, wherein the first flaring portion is suitable for being provided in the first flaring section, and the first flaring portion abuts against the inner side surface of the first flaring section.

[0009] According to the valve body assembly of the embodiment of the utility model, a flared portion is provided at one end of the valve stem, and correspondingly, a first flared section is provided at one end of the valve core close to the valve stem, so that after one end of the valve stem is inserted into the first flared section, the flared portion can abut against the inner side surface of the first flared section, thereby realizing the connection between the valve stem and the valve core, and limiting the movement of the valve stem and the valve core in the axial direction. Compared with the prior art, the valve body assembly of the utility model can effectively reduce the length of the valve stem, greatly reduce the difficulty and cost of processing, and can well ensure the reliability of the connection between the valve stem and the valve core.

[0010] According to some embodiments of the present utility model, the valve stem is provided with a first limiting portion, and the first limiting portion is suitable for stopping against an end surface of the valve core close to one end of the valve stem.

[0011] According to some embodiments of the present invention, the outer diameter of one end of the first flared portion close to the valve stem is smaller than the diameter of the valve stem to form a step structure, and the step structure is the first limiting portion.

[0012] According to some embodiments of the present invention, the first flaring portion includes a straight segment and an outward flaring segment, the straight segment and the outward flaring segment are fixedly connected, and the outward flaring segment is gradually expanded from one end close to the straight segment to one end away from the straight segment.

[0013] According to some embodiments of the present invention, the first expansion section includes a first straight hole section and a first gradually expanding section, the straight section cooperates with the first straight hole section, and the expansion section abuts against the first gradually expanding section.

[0014] According to some embodiments of the utility model, the valve body assembly also includes: a core iron, which is provided with a second flared section; the valve stem is provided with a second flared portion at the other end in the axial direction, the second flared portion is suitable for being provided in the second flared section, and the second flared portion abuts against the inner side surface of the second flared section.

[0015] According to some embodiments of the present utility model, the valve stem is provided with a second limiting portion, and the second limiting portion is suitable for stopping against an end surface of the core iron close to one end of the valve stem.

[0016] The solenoid valve according to the second embodiment of the utility model comprises: a valve seat and the valve body assembly, the valve seat is provided with a valve port, and the valve core can move axially to open and close the valve port.

[0017] The active suspension according to the third aspect of the utility model is characterized in that it includes an air spring and the solenoid valve, the air spring is provided with a main air chamber and a secondary air chamber, and the solenoid valve is used to control the on-off between the main air chamber and the secondary air chamber.

[0018] The vehicle according to the fourth aspect of the present utility model includes: the active suspension or the solenoid valve.

[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 is a structural schematic diagram of a valve body assembly according to an embodiment of the utility model;

[0025] Figure 5 yes Figure 4 The enlarged schematic diagram of point A in the middle;

[0026] Figure 6 yes Figure 4 The enlarged schematic diagram of point B in the middle;

[0027] Figure 7 is a schematic structural diagram of a valve stem according to an embodiment of the utility model;

[0028] Figure 8 It is a structural schematic diagram of a valve seat according to an embodiment of the utility model;

[0029] Fig. 9 It is a schematic structural diagram of the core iron according to an embodiment of the utility model.

[0030] Reference numerals:

[0031] S, solenoid valve;

[0032] 100, base;

[0033] 200, valve body assembly;

[0034] 210, valve stem; 211, first flared portion; 211a, straight section; 211b, outwardly flared section; 212, first position limiting portion; 213, second position limiting portion;

[0035] 220, valve core; 221, first expansion hole section; 222, first straight hole section;

[0036] 230, core iron; 231, second expansion hole section; 232, second straight hole section; 233, limiting step;

[0037] 240, valve seat; 241, valve port;

[0038] 250, spring; 260, magnetic isolation tube;

[0039] 300, coil assembly; 310, coil; 320, terminal; 330, magnetic ring;

[0040] 400, housing; 500, sealing seat. DETAILED DESCRIPTION

[0041] 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.

[0042] Reference below Figure 1-Figure 9 A valve body assembly according to an embodiment of the present utility model is described, which is used for a solenoid valve S.

[0043] like Figure 1-Figure 9 As shown, the valve body assembly 200 includes a valve stem 210 and a valve core 220 .

[0044] The valve core 220 is arranged at one end of the valve stem 210 in the axial direction, wherein a first flaring portion 211 is provided at one end of the valve stem 210 in the axial direction, and a first flaring section 221 is provided at one end of the valve core 220 close to the valve stem 210, and the first flaring portion 211 is suitable for being arranged in the first flaring section 221, and the first flaring portion 211 abuts against the inner side surface of the first flaring section 221.

[0045] Specifically, when the valve stem 210 is connected to the valve core 220, one end of the valve stem 210 having the first flared portion 211 is inserted into the first flared section 221 of the valve core 220, so that the first flared portion 211 can abut against the inner side surface of the first flared section 221, thereby realizing the connection between the valve stem 210 and the valve core 220, and being able to limit the axial movement of the valve stem 210 and the valve core 220.

[0046] Compared with the prior art, this connection structure can effectively reduce the length of the valve stem 210, greatly reduce the processing difficulty and cost, and can well ensure the connection reliability between the valve stem 210 and the valve core 220.

[0047] Thus, by providing a first flared portion 211 at one end of the valve stem 210, correspondingly, a first flared section 221 is provided at one end of the valve core 220 close to the valve stem 210, so that after one end of the valve stem 210 is inserted into the valve core 220, the first flared portion 211 can abut against the inner side surface of the first flared section 221, thereby realizing the connection between the valve stem 210 and the valve core 220, and limiting the movement of the valve stem 210 and the valve core 220 in the axial direction. Compared with the prior art, the valve body assembly 200 of the utility model can effectively reduce the length of the valve stem 210, greatly reduce the processing difficulty and cost, and can well ensure the connection reliability between the valve stem 210 and the valve core 220.

[0048] In some embodiments, after the valve stem 210 penetrates the valve core 220, the first flared portion 211 expands outward at the end away from the valve stem 210, so that the outer diameter of the end of the first flared portion 211 close to the valve stem 210 is smaller than the outer diameter of the end of the first flared portion 211 away from the valve stem 210. In this way, the periphery of the first flared portion 211 can be firmly abutted against the inner side surface of the first expansion section 221, thereby ensuring the reliability of the connection between the valve stem 210 and the valve core 220.

[0049] In some embodiments, the inner diameter of the end of the first flared section 221 close to the valve stem 210 is smaller than the inner diameter of the end of the first flared section 221 away from the valve stem 210. In this way, the first flared section 221 is adapted to the shape of the first flared portion 211, and after the valve stem 210 penetrates the valve core 220, the periphery of the first flared portion 211 abuts against the inner side surface of the first flared section 221, which can ensure the connection reliability between the valve stem 210 and the valve core 220 and limit the axial movement of the valve stem 210.

[0050] In one embodiment disclosed in the present utility model, reference 5 and Figure 8 As shown, the first expansion section 221 may be a tapered hole, and the first expansion portion 211 abuts against the inner side surface of the tapered hole to achieve a fixed connection between the valve stem 210 and the valve core 220 .

[0051] In some embodiments, a first limiting portion 212 is provided at one end of the valve stem 210, and the first limiting portion 212 is provided at an end of the first expansion portion 211 away from the valve core 220. One end of the valve stem 210 penetrates into the first expansion hole section 221, and the first limiting portion 212 is suitable for stopping at the end face of the valve core 220 close to the valve stem 210.

[0052] like Figure 5 and Figure 7As shown, when one end of the valve stem 210 penetrates the valve core 220, in addition to the first flared portion 211 firmly abutting against the inner side surface of the first flared section 221, the first limiting portion 212 at the end of the first flared portion 211 away from the valve core 220 will stop at an end surface of the valve core 220 close to the valve stem 210, so that one end of the valve stem 210 can be firmly connected to the valve core 220, thereby achieving fixation between the valve stem 210 and the valve core 220.

[0053] Therefore, after one end of the valve stem 210 is inserted into the valve core 220, the first flared portion 211 can abut against the inner side surface of the first flared section 221, and the first limit portion 212 abuts against one end surface of the valve core 220, thereby realizing the connection between the valve stem 210 and the valve core 220, and limiting the movement of the valve stem 210 and the valve core 220 in the axial direction. This connection structure can effectively reduce the length of the valve stem 210, greatly reduce the processing difficulty and cost, and can well ensure the connection reliability between the valve stem 210 and the valve core 220.

[0054] In one embodiment of the present invention, the first flared portion 211 is protruding relative to one end of the valve stem 210, and the outer diameter of the first flared portion 211 close to one end of the valve stem 210 is smaller than the diameter of the valve stem 210 to form a step structure, which is the first limiting portion 212.

[0055] like Figure 7 As shown, the first flared portion 211 is protruded relative to one end face of the valve stem 210, and the outer diameter of the end of the first flared portion 211 close to the valve stem 210 is smaller than the diameter of the valve stem 210. In this way, a step structure is formed between the end of the first flared portion 211 close to the valve stem 210 and the valve stem 210. The step structure is the first limiting portion 212. When the first flared portion 211 penetrates into the first expansion hole section 221, the first limiting portion 212 stops at the end face of the valve core 220.

[0056] Alternatively, in another embodiment of the present invention, the first limiting portion 212 may also be disposed on the side of the valve stem 210 and protrude relative to the side of the valve stem 210, which may also achieve a limiting effect.

[0057] Of course, the first limiting portion 212 may also be a limiting block or other structures, which is not specifically limited.

[0058] In some embodiments, the first flared portion 211 includes a straight section 211a away from the valve core 220 and an outward expansion section 211b close to the valve core 220. The straight section 211a and the outward expansion section 211b are fixedly connected, and the outward expansion section 211b gradually expands from one end close to the straight section 211a to the end away from the straight section 211a.

[0059] like Figure 7As shown, the first flared portion 211 includes two parts, namely a straight section 211a away from the valve core 220 and an outward expansion section 211b close to the valve core 220. The straight section 211a can be used to guide the valve stem 210 and the valve core 220 in the axial direction, and the outward expansion section 211b can be used to make its periphery abut against the inner side surface of the first flared section 221, thereby realizing a fixed connection between the valve core 220 and the valve stem 210.

[0060] Furthermore, the first expansion section 221 includes a first straight hole section 222 and a first gradually expanding section, the straight section 211a matches with the first straight hole section 222, and the outward expansion section 211b abuts against the first gradually expanding section. That is, the first straight hole section 222 is provided at one end of the valve core 220 close to the valve stem 210, the first straight hole section 222 is connected to one end of the first expansion section 221 close to the valve stem 210, and the first straight hole section 222 and the first expansion section 221 are penetrated at one end of the valve stem 210, so that the first straight hole section 222 matches with the straight section 211a, and the first gradually expanding section abuts against the outward expansion section 211b.

[0061] like Figure 5 As shown, the first flared portion 211 includes a straight section 211a away from the valve core 220 and an outward expansion section 211b close to the valve core 220. Correspondingly, the valve core 220 includes a first straight hole section 222 and a first expansion section 221 close to one end of the valve stem 210. After the valve stem 210 penetrates the valve core 220, the straight section 211a of the first flared portion 211 cooperates with the first straight hole section 222, so that the valve stem 210 and the valve core 220 can be axially matched, and the outward expansion section 211b of the first flared portion 211 abuts against the first expansion section 221, so that the valve stem 210 and the valve core 220 can be connected, thereby better realizing the connection reliability between the valve stem 210 and the valve core 220, and ensuring that the valve stem 210 will not shake when driving the valve core 220 to move axially.

[0062] In some embodiments, the valve body assembly 200 also includes: a core iron 230, which is arranged at the other end of the valve stem 210, and a second expansion section 231 is provided at the end of the core iron 230 close to the valve stem 210, and a second expansion portion is provided at the other end of the valve stem 210 in the axial direction, and the second expansion portion is suitable for being arranged in the second expansion section 231, and the second expansion portion is abutted against the inner side surface of the second expansion section 231.

[0063] like Figure 6 , Figure 7 and Fig. 9 As shown, the connection method between the valve stem 210 and the valve core 220 is the same. When the valve stem 210 is connected to the core iron 230, the second flared portion at the other end of the valve stem 210 is abutted against the inner side surface of the second flared section 231 of the core iron 230, thereby achieving a fixed connection between the valve stem 210 and the core iron 230.

[0064] In some embodiments, a second limiting portion 213 is provided at the other end of the valve stem 210. The second limiting portion 213 is provided at an end of the first expansion portion 211 away from the core iron 230. The other end of the valve stem 210 passes through the second expansion hole section 231. The second limiting portion 213 is suitable for stopping at the end surface of the core iron 230 close to the valve stem 210.

[0065] Similarly, the valve stem 210 is provided with a second limiting portion 213 at one end of the first flared portion 211 away from the core iron 230, so that when the other end of the valve stem 210 penetrates the core iron 230, in addition to the first flared portion 211 at the other end of the valve stem 210 abutting against the inner side surface of the second flared section 231 of the core iron 230, the second limiting portion 213 on the valve stem 210 can stop at one end of the core iron 230 close to the valve stem 210, so that the other end of the valve stem 210 is restricted to be connected to the core iron 230, thereby achieving better connection reliability between the core iron 230 and the valve stem 210.

[0066] In some embodiments, a second straight hole segment 232 is provided at one end of the core iron 230 close to the valve stem 210, and the second straight hole segment 232 is connected to one end of the second expanded hole segment 231 close to the valve stem 210. A limiting step 233 is formed on the inner side surface of the second straight hole segment 232. The second straight hole segment 232 and the second expanded hole segment 231 are passed through the other end of the valve stem 210, and the second limiting portion 213 is in contact with the limiting step 233.

[0067] like Figure 6 and Fig. 9 As shown, a second straight hole section 232 is provided at one end of the core iron 230 close to the valve stem 210, and the second straight hole section 232 is connected to one end of the second expansion hole section 231 close to the valve stem 210. When the other end of the valve stem 210 is successively penetrated by the second straight hole section 232 and the second expansion hole section 231, the second limiting portion 213 of the valve stem 210 can be abutted against the limiting step 233 on the inner side surface of the second straight hole section 232, thereby realizing a fixed connection between the core iron 230 and the valve stem 210.

[0068] The second straight hole section 232 may include straight sections with different diameters to facilitate the valve stem 210 to penetrate into the core iron 230 .

[0069] Further, see Figure 7 As shown, the first flared portion 211 is a tubular structure, so that when the valve stem 210 penetrates into the valve core 220 / core iron 230, the periphery of the first flared portion 211 is further abutted against the inner side surface of the valve core 220 / core iron 230 by a processing tool, thereby improving the connection reliability.

[0070] The solenoid valve S according to the embodiment of the second aspect of the utility model includes: a valve body assembly 200 .

[0071] like Figure 3 As shown, the valve body assembly 200 also includes: a valve seat 240, the valve seat 240 is provided with a valve port 241, the valve core 220 is arranged in the valve port 241, one end of the valve stem 210 passes through the valve seat 240 and is fixedly connected to the valve core 220, and the valve core 220 can move axially to open and close the valve port.

[0072] Furthermore, the solenoid valve S also 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.

[0073] 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.

[0074] 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 .

[0075] 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.

[0076] 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 .

[0077] 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 .

[0078] 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.

[0079] 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.

[0080] The active suspension according to the third embodiment of the utility model includes: an air spring and a solenoid valve S, the air spring is provided with a main air chamber and a secondary air chamber, and the solenoid valve S is used to control the connection between the main air chamber and the secondary air chamber.

[0081] The vehicle according to the fourth embodiment of the utility model includes: an active suspension or a solenoid valve S.

[0082] Therefore, after one end of the valve stem 210 is inserted into the valve core 220, the first flared portion 211 can abut against the inner side surface of the first flared section 221, and the first limit portion 212 abuts against one end surface of the valve core 220, thereby realizing the connection between the valve stem 210 and the valve core 220, and limiting the movement of the valve stem 210 and the valve core 220 in the axial direction. This connection structure can effectively reduce the length of the valve stem 210, greatly reduce the processing difficulty and cost, and can well ensure the connection reliability between the valve stem 210 and the valve core 220.

[0083] 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.

[0084] 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.

[0085] 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: A valve stem, wherein one end of the valve stem in the axial direction is provided with a first flared portion; A valve core is provided with a first expansion section at one end of the valve core close to the valve stem, the first expansion portion is suitable for being arranged in the first expansion section, and the first expansion portion abuts against the inner side surface of the first expansion section.

2. The valve body assembly according to claim 1, characterized in that: The valve stem is provided with a first limiting portion, and the first limiting portion is suitable for abutting against an end surface of the valve core close to one end of the valve stem.

3. The valve body assembly according to claim 2, characterized in that: The outer diameter of one end of the first flared portion close to the valve stem is smaller than the diameter of the valve stem to form a step structure, and the step structure is the first limiting portion.

4. The valve body assembly according to claim 1, characterized in that: The first flared portion includes a straight section and an outwardly flared section, the straight section and the outwardly flared section are fixedly connected, and the outwardly flared section is gradually flared from one end close to the straight section to one end far from the straight section.

5. The valve body assembly according to claim 4, characterized in that: The first expansion section includes a first straight hole section and a first gradually expanding section, the straight section matches with the first straight hole section, and the expansion section abuts against the first gradually expanding section.

6. The valve body assembly according to claim 1, characterized in that: The valve body assembly further includes: a core iron, wherein the core iron is provided with a second expansion hole section; The valve stem is provided with a second flared portion at the other end in the axial direction. The second flared portion is suitable for being arranged in the second hole expansion section. The second flared portion abuts against the inner side surface of the second hole expansion section.

7. The valve body assembly according to claim 6, characterized in that: The valve stem is provided with a second limiting portion, and the second limiting portion is suitable for abutting against an end surface of the core iron close to one end of the valve stem.

8. A solenoid valve, characterized in that: include: A valve seat and a valve body assembly according to any one of claims 1 to 7, wherein the valve seat is provided with a valve port, and the valve core can move axially to open and close the valve port.

9. An active suspension, characterized in that: It comprises an air spring and a solenoid valve as claimed in claim 8, wherein the air spring is provided with a main air chamber and a secondary air chamber, and the solenoid valve is used to control the on-off between the main air chamber and the secondary air chamber.

10. A vehicle, characterized in that: Comprising the active suspension as claimed in claim 9 or the solenoid valve as claimed in claim 8.

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