CN214618091U

CN214618091U - Electromagnetic valve

Info

Publication number: CN214618091U
Application number: CN202023200513.7U
Authority: CN
Inventors: 不公告发明人
Original assignee: Zhejiang Sanhua Intelligent Controls Co Ltd
Current assignee: Zhejiang Sanhua Intelligent Controls Co Ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-11-05
Anticipated expiration: 2030-12-25

Abstract

The utility model discloses a solenoid valve belongs to electromagnetic control technical field, including coil skeleton, the first protruding group of fixed connection on the first spacing face of coil skeleton, the protruding group of second of fixed connection on the spacing face of second of coil skeleton, first magnetizer, the second magnetizer, magnetic conduction bush and quiet iron core, magnetic conduction bush and first magnetizer spacing connection, quiet iron core and second magnetizer fixed connection, magnetic conduction bush offsets and/or quiet iron core offsets with the spacing face of second and the protruding group of second with first spacing face and first protruding group, make the protruding group of first protruding group and/or second produce elastic deformation. The coil framework of the electromagnetic valve can be stably kept fastened and not loosened for a long time, the interference magnitude between the coil framework and the magnetizer is small, and the coil framework is not easy to crack, so that the electromagnetic valve is long in service life and safe and stable in operation.

Description

Electromagnetic valve

Technical Field

The utility model relates to an electromagnetic control technical field, in particular to solenoid valve.

Background

The electromagnetic valve is widely applied to the technical field of fluid control due to the flexible on-off control function of the electromagnetic valve, and comprises an electromagnetic driving device, wherein the electromagnetic driving device comprises a coil component and a magnetizer, and the coil component and the magnetizer are in interference fit, so that the situation that the coil component is pressed for a long time needs to be improved as much as possible by a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a solenoid valve, which comprises an electromagnetic driving device, wherein the electromagnetic driving device comprises a coil component, a magnetizer, a first matching part and a second matching part, the first matching part is in limit connection with the magnetizer, and the second matching part is fixedly connected or in limit connection with the magnetizer;

the coil component comprises a coil framework, the coil framework comprises a body part, a limiting part and a protruding part, the protruding part can elastically deform, the limiting part protrudes towards the axial direction of the coil framework along the radial direction relative to the body part, the limiting part comprises a limiting surface, and the upper end surface or the lower end surface of the protruding part) is connected with the limiting surface;

the upper end face of the first matching portion abuts against the limiting face, the upper end portion of the first matching portion abuts against the protruding portion, and/or the lower end face of the second matching portion abuts against the limiting face, and the lower end portion of the second matching portion abuts against the protruding portion.

The application provides a solenoid valve of new construction, makes it include coil part, magnetizer, first cooperation portion and second cooperation portion, and the up end of first cooperation portion offsets with spacing face, and the upper end of first cooperation portion offsets with the bellying, and/or, the lower terminal surface of second cooperation portion offsets with spacing face, and the lower tip of second cooperation portion offsets with the bellying, can improve the long-time pressurized condition of coil part relatively.

Drawings

Fig. 1 is a perspective view of an embodiment of the electromagnetic valve provided by the present invention.

Fig. 2 is a cross-sectional view of fig. 1.

Fig. 3 is an enlarged view of the inner structure of circle a in fig. 2.

Fig. 4 is an enlarged view of the inner structure of circle B in fig. 2.

Fig. 5 is an enlarged view of the bobbin of fig. 2.

Fig. 6 is a cross-sectional view of a bobbin in another embodiment.

Fig. 7 is a cross-sectional view of a bobbin in yet another embodiment.

The reference numerals are explained below:

10 valve body, 10a installation surface, 10b main valve opening part, 10c inlet part and 10d outlet part;

20 coil components, 201 coil, 202 coil frame, 2021 body part, 2022 limit part, 2023 convex part, 202a first limit surface, 202b second limit surface, 202c first groove, 202d first convex group, 202e second convex group;

30 magnetizers, 301 first magnetizer, 301a second groove and 302 second magnetizer;

40 connection, 401 first connection arm, 402 second connection arm;

50 magnetic conductive bush, 50a bush body, 50b flange;

60 static iron core, 60a counter bore;

70 a movable iron core;

80 sleeve, 80a sleeve body and 80b limit flange part;

90, a sealing ring;

100 springs;

110 a seal member;

120 bolts.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the following provides a detailed description of the technical solution of the present invention with reference to the accompanying drawings.

As shown in fig. 1 and 2, the solenoid valve includes a valve body 10, an electromagnetic driving device, a seal ring 90, a spring 100, a seal 110, a bolt 120, and the like. The electromagnetic drive device includes a coil component 20, a magnetizer 30, a connecting portion 40, a magnetic conductive bushing 50, a stationary core 60, a movable core 70, a sleeve 80, and the like.

As shown in fig. 2, the valve body 10 is provided with a main orifice portion 10b, an inlet portion 10c, an outlet portion 10d, and a mounting port. The surface of the valve body 10 is further provided with a mounting surface 10a, the mounting surface 10a surrounds the mounting opening, a sealing ring accommodating groove is formed in the inner ring position of the mounting surface 10a close to the mounting opening, and the sealing ring 90 is arranged in the sealing ring accommodating groove. The sealing member 110 is installed inside the valve body 10 for sealing the main orifice portion 10b, the outlet portion 10d and the inlet portion 10c are not communicated with each other in the sealed state of the main orifice portion 10b, the outlet portion 10d and the inlet portion 10c are communicated with each other in the opened state of the main orifice portion 10b, and a medium can enter the inside of the valve body 10 from the inlet portion 10c, then flow through the main orifice portion 10b, and then flow out from the outlet portion 10 d.

As shown in fig. 2, the plunger 70 extends at its upper end into the inner bore of the sleeve 80, and the plunger 70 is axially movable. The lower end of the plunger 70 passes through the mounting opening of the valve body 10, protrudes into the interior of the valve body 10, and is assembled with the sealing member 110. The spring 100 is sleeved on the periphery of the plunger 70 and is located between the sealing member 110 and the bottom end face of the first magnetizer 301. When the coil component 20 is energized to generate a magnetic field, under the action of electromagnetic force, the movable iron core 70 moves toward the stationary iron core 60, thereby driving the sealing member 110 to leave the main valve opening 10b, opening the main valve opening 10b, and realizing medium conduction, in the process, the spring 100 is compressed; after the power failure, the seal 110 and the plunger 70 are restored by the elastic force of the spring 100, and the seal 110 seals the main valve portion 10b, thereby blocking the medium.

As shown in fig. 2, the coil component 20 includes a coil 201 and a bobbin 202 for supporting the coil 201. The axis of the bobbin 202 (the dotted line C in the figure) is substantially perpendicular to the mounting surface 10a of the valve body 10.

As shown in fig. 5 to 7, the bobbin 202 includes a body portion 2021, a stopper portion 2022, and a protrusion portion 2023.

The body portion 2021 has an axial cross section substantially in the shape of an "i" with a vertical portion for winding the coil 201 and two lateral portions for stopping the coil 201. The body portion 2021 is provided with an inner hole, which penetrates through the vertical portion and the horizontal portion of the i shape.

The stopper portion 2022 protrudes in the axial direction of the bobbin 202 in a substantially radial direction with respect to the body portion 2021. The limiting portion 2022 includes a limiting surface, and the limiting surface is disposed on an end surface of the limiting portion 2022. Specifically, a first stopper surface 202a may be disposed on the lower end surface of the stopper portion 2022, and a second stopper surface 202b may be disposed on the upper end surface of the stopper portion 2022.

The projection 2023 projects in the axial direction of the bobbin 202 relative to the body portion 2021. The convex portion 2023 is elastically deformable, and may be a sheet-like structure. The end surface of the protruding portion 2023 is fixedly connected to the limiting surface of the limiting portion 2022, which may be welded, glued or integrally formed. Specifically, as shown in fig. 5, two sets of protrusion sets may be provided at the same time, an upper end surface of the first protrusion set 202d is fixedly connected to the first limiting surface 202a, and a lower end surface of the second protrusion set 202e is fixedly connected to the second limiting surface 202 b. It is also possible to provide only the first projection group 202d as shown in fig. 6, or to provide only the second projection group 202e as shown in fig. 7.

Specifically, each protrusion group may include one or more protrusions, and when a plurality of protrusions are included, the protrusions of each protrusion group are arranged at equal intervals in sequence along the circumferential direction of the coil bobbin 202.

Specifically, as shown in fig. 5, the thickness of the stopper portion 2022 in the radial direction is W1, and the thickness of the boss portion 2023 in the radial direction is W2, which satisfies: w2 is not less than W1, and W2 is not less than 0.8mm and not more than 1.5 mm. As shown in FIG. 3, the inner diameter of the bobbin 202 is C1, and the inner diameter of the protrusion 2023 is C2, which satisfies C2 ≦ C1.

As shown in fig. 2, the magnetic conductor 30 includes a first magnetic conductor 301 located on the lower side of the bobbin 202, and further includes a second magnetic conductor 302 located on the upper side of the bobbin 202. Specifically, the first magnetic conductor 301 is mounted on the mounting surface 10a of the valve body 10, the second magnetic conductor 302 is fixedly connected to the upper end of the first connecting arm 401 of the connecting portion 40, the first connecting arm 401 extends substantially along the axial direction of the coil bobbin 202, the lower end of the first connecting arm 401 is fixedly connected to the second connecting arm 402 of the connecting portion 40 (the first connecting arm 401, the second connecting arm 402 and the second magnetic conductor 302 can be set to be an integrally formed structure), the second connecting arm 402 abuts against the upper end surface of the first magnetic conductor 301, the bolt 120 sequentially penetrates through the second connecting arm 402 and the first magnetic conductor 301 and then is screwed to the valve body 10, and the bolt 120 simultaneously plays a role in fixing the first magnetic conductor 301 and fixing the second connecting arm 402.

As shown in fig. 2, the electromagnetic driving device includes a first engaging portion, which is a magnetic conductive bushing 50. The magnetic conductive bush 50 abuts against the first position-limiting surface 202a and the first protrusion group 202d at the same time, so that the first protrusion group 202d generates elastic deformation and abuts against the first magnetic conductor 301. In the figure, the magnetically conductive bush 50 also abuts against the sleeve 80.

In detail, as shown in fig. 3, the magnetic conductive bushing 50 includes a bushing body 50a and a flange portion 50b, the bushing body 50a is located in the inner hole of the bobbin 202, and the flange portion 50b is protruded in the axial direction away from the magnetic conductive bushing 50 in the radial direction with respect to the bushing body 50 a. The upper end surface of the bushing body 50a abuts against the first stopper surface 202a, and the upper end portion of the bushing body 50a abuts against the first boss group 202 d. The lower end portion of the body portion 2021 of the bobbin 202 is provided with a first groove 202c, and the flange portion 50b extends into the first groove 202c and abuts between the recessed surface of the first groove 202c and the upper end surface of the first magnetic conductor 301. The sleeve 80 includes a sleeve body 80a and a limiting flange portion 80b, a part of the pipe section of the sleeve body 80a is located in the bushing body 50a, the limiting flange portion 80b protrudes in the radial direction from the axial direction of the sleeve 80 relative to the sleeve body 80a, the upper end portion of the first magnetizer 301 is provided with a second groove 301a, and the limiting flange portion 80b extends into the second groove 301a and abuts between the recessed surface of the second groove 301a and the lower end surface of the flange portion 50 b.

Specifically, the outer diameter of the bushing body 50a is C3, and the outer diameter of the first protrusion group 202d is C4, which satisfies: c4 is less than or equal to C3.

As shown in fig. 2, the electromagnetic driving device includes a second engaging portion, which is a stationary core 60 in the figure. The stationary core 60 abuts against the second limiting surface 202b and the second protrusion group 202e at the same time, so that the second protrusion group 202e generates elastic deformation, and is further connected to the second magnetizer 302.

In detail, the upper end portion of the stationary core 60 is in interference fit with the center hole of the second magnetic conductor 302, and the step surface of the upper end portion of the stationary core 60 abuts against the lower end surface of the second magnetic conductor 302. As shown in fig. 4, the lower end surface of the stationary core 60 abuts against the second stopper surface 202b, and the lower end portion of the stationary core 60 abuts against the second protrusion group 202 e. In the drawing, the lower end portion of the stationary core 60 is provided with a counterbore 60a, and the upper end portion of the sleeve 80 is inserted into the counterbore 60 a.

The electromagnetic driving device limits the position of the coil framework 202 by utilizing mutual abutting of the magnetizer 30 and the convex part 2023, and because the convex part 2023 generates elastic deformation under the abutting action of the magnetizer 30, the abutting between the magnetizer 30 and the convex part 2023 is elastic abutting, and the elastic abutting can effectively reduce the stress of the coil framework 202 compared with rigid interference fit, so that the risk of reduction of use safety caused by cracks in the life cycle of the electromagnetic valve of the coil framework 202 can be avoided, and moreover, the elastic deformation of the convex part 2023 can automatically compensate the deformation of the magnetizer 30 in the long-term use process, so the magnetizer 30 and the convex part 2023 can stably maintain the tight abutting relation for a long time, and the coil framework 202 can be ensured to stably maintain fastening and not loosen for a long time.

The utility model provides a solenoid valve can avoid coil skeleton 202 the risk that the crackle appears and lead to the safety in utilization decline in the solenoid valve life cycle, can ensure moreover that coil skeleton 202 keeps fastening, not hard up steadily for a long time, and overall structure is compact moreover, the magnetic loss is little, power consumption is few.

The above description of the embodiments is only intended to help understand the core idea of the present invention. For those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. The electromagnetic valve is characterized by comprising an electromagnetic driving device, wherein the electromagnetic driving device comprises a coil component (20), a magnetizer (30), a first matching part and a second matching part, the first matching part is in limit connection with the magnetizer (30), and the second matching part is fixedly connected or in limit connection with the magnetizer (30);

the coil component (20) comprises a coil frame (202), the coil frame (202) comprises a body part (2021), a limiting part (2022) and a protruding part (2023), the protruding part (2023) can generate elastic deformation, the limiting part (2022) protrudes towards the axial direction of the coil frame (202) along the radial direction relative to the body part (2021), the limiting part (2022) comprises a limiting surface, and the upper end surface or the lower end surface of the protruding part (2023) is connected with the limiting surface;

the upper end face of the first matching part abuts against the limiting face, the upper end part of the first matching part abuts against the boss part (2023), and/or the lower end face of the second matching part abuts against the limiting face, and the lower end part of the second matching part abuts against the boss part (2023).

2. The solenoid valve according to claim 1, wherein the protruding portion (2023) comprises a first protruding group (202d), a lower end surface of the limiting portion (2022) forms a first limiting surface (202a), and an upper end surface of the first protruding group (202d) is fixedly connected with the first limiting surface (202 a); the first matching part is a magnetic conduction bushing (50), the magnetic conduction bushing (50) comprises a bushing body (50a), the bushing body (50a) is located in the coil framework (202), the upper end face of the bushing body (50a) abuts against the first limiting face (202a), and the upper end part of the bushing body (50a) abuts against the first protrusion group (202 d); the magnetizer (30) comprises a first magnetizer (301) positioned on the lower side of the coil frame (202), and the lower end part of the magnetic conductive bushing (50) is abutted against the first magnetizer (301).

3. The electromagnetic valve according to claim 2, wherein the outer diameter of the bushing body (50a) is set to C3, and the outer diameter of the first protrusion group (202d) is set to C4, satisfying C4 ≦ C3.

4. The solenoid valve of claim 2 wherein the magnetically permeable liner (50) further comprises a flange portion (50b), the flange portion (50b) projecting radially relative to the liner body (50a) away from the axis of the magnetically permeable liner (50); the lower end part of the body part (2021) of the coil framework (202) is provided with a first groove (202c), and the flange part (50b) is abutted between the concave surface of the first groove (202c) and the upper end surface of the first magnetizer (301).

5. The electromagnetic valve according to claim 4, wherein the electromagnetic drive device further comprises a sleeve (80), the sleeve (80) comprises a sleeve body (80a) and a limiting flange portion (80b), a part of the pipe section of the sleeve body (80a) is located in the bushing body (50a), the limiting flange portion (80b) is protruded in a radial direction away from the axial direction of the sleeve (80) relative to the sleeve body (80a), the upper end portion of the first magnetic conductor (301) is provided with a second groove (301a), and the limiting flange portion (80b) abuts between a recessed surface of the second groove (301a) and a lower end surface of the flange portion (50 b).

6. The solenoid valve according to claim 2, characterized in that said first magnetic conductor (301) is bolted to a valve body (10) of said solenoid valve.

7. The solenoid valve according to claim 2, wherein the protruding portion (2023) comprises a second protruding group (202e), an upper end surface of the limiting portion (2022) forms a second limiting surface (202b), and a lower end surface of the second protruding group (202e) is fixedly connected with the second limiting surface (202 b); the second matching component is a static iron core (60), the lower end face of the static iron core (60) abuts against the second limiting surface (202b), and the lower end part of the static iron core (60) abuts against the first protrusion group (202 d); magnetizer (30) are including being located second magnetizer (302) of coil skeleton (202) upside, the upper end of quiet iron core (60) with second magnetizer (302) fixed connection or spacing connection.

8. The electromagnetic valve according to claim 7, characterized in that the lower end of the static iron core (60) is provided with a counterbore (60a), the electromagnetic drive device further comprises a sleeve (80), the sleeve (80) comprises a sleeve body (80a), and the upper end of the sleeve body (80a) extends into the counterbore (60 a).

9. The solenoid valve according to claim 7, characterized in that the second magnetic conductor (302) is bolted to the valve body (10) of the solenoid valve by means of a connection (40).

10. The electromagnetic valve according to any one of claims 2 to 9, wherein each set of the protrusions includes one or more protrusions, and when a plurality of protrusions are included, the protrusions of each set of the protrusions are arranged at equal intervals in order in the circumferential direction of the bobbin (202).

11. The electromagnetic valve according to any one of claims 1 to 9, wherein the thickness of the stopper portion (2022) in the radial direction is set to W1, and the thickness of the boss portion (2023) in the radial direction is set to W2, satisfying: w2 is not less than W1, and W2 is not less than 0.8mm and not more than 1.5 mm.

12. The electromagnetic valve according to any one of claims 1 to 9, wherein the inner diameter of the bobbin (202) is set to C1, and the inner diameter of the boss (2023) is set to C2, satisfying C2 ≦ C1.