CN217301821U

CN217301821U - Electromagnetic valve

Info

Publication number: CN217301821U
Application number: CN202220697590.8U
Authority: CN
Inventors: 张积友; 徐冠军; 陈勇好
Original assignee: Zhejiang DunAn Hetian Metal Co Ltd
Current assignee: Zhejiang DunAn Hetian Metal Co Ltd
Priority date: 2022-03-28
Filing date: 2022-03-28
Publication date: 2022-08-26
Anticipated expiration: 2032-03-28

Abstract

The utility model provides a solenoid valve, include: a valve body assembly; the sleeve is connected with the valve body assembly; the coil assembly is sleeved on the sleeve and provided with a sealing groove surrounding the sleeve; the sealing element is positioned in the sealing groove and used for plugging a gap between the coil assembly and the sleeve; the fixing clip, one side and coil pack fixed connection and with the sealing member butt of fixing clip, the opposite side and the valve body subassembly fixed connection of fixing clip. By adopting the scheme, the sealing element is arranged in the sealing groove, one side of the fixing clamp is fixedly connected with the coil assembly and is abutted against the sealing element, so that the gap between the coil assembly and the sleeve can be blocked by the sealing element, water stain in the working process of the electromagnetic valve is prevented from entering the coil assembly, the coil assembly is prevented from being corroded, the working performance and the service life of the coil assembly are improved, and the sealing effect of the electromagnetic valve is further improved.

Description

Electromagnetic valve

Technical Field

The utility model relates to a solenoid valve technical field particularly, relates to a solenoid valve.

Background

At present, a solenoid valve is composed of two parts, i.e., a coil component and a valve body, wherein the valve body corresponds to a rotor part and the coil component corresponds to a stator part. In the working process, a pulse type driving signal is applied to the coil part, a regular magnetic field motion is generated on a pole claw of a magnetizer in the coil part, and a rotor in the valve body is driven to rotate so as to adjust the opening degree of a valve port of the valve body, so that the flow of a working medium in the system is controlled. After the coil part and the valve body are assembled in the prior art, a gap exists between the coil part and the valve body, and water stain can enter the gap when the electromagnetic valve works, so that the performance and the service life of the coil part are affected.

SUMMERY OF THE UTILITY MODEL

The utility model provides a solenoid valve to solve the poor problem of the sealed effect of the solenoid valve among the prior art.

In order to solve the above problem, the utility model provides a solenoid valve, include: a valve body assembly; the sleeve is connected with the valve body assembly; the coil assembly is sleeved on the sleeve and provided with a sealing groove surrounding the sleeve; the sealing element is positioned in the sealing groove and used for plugging a gap between the coil assembly and the sleeve; the fixing clip, one side and coil pack fixed connection and with the sealing member butt of fixing clip, the opposite side and the valve body subassembly fixed connection of fixing clip.

Further, the coil component comprises a coil structure and an injection molding shell, the coil structure is wrapped by the injection molding shell, a sealing groove is formed in one side, facing the fixing clamp, of the injection molding shell, and the fixing clamp is fixedly connected with the injection molding shell.

Furthermore, the injection molding shell comprises an outer shell and an inner shell, wherein the coil structure is located in a cavity of the outer shell, the inner shell is located in the coil structure and sleeved on the sleeve, the outer shell is provided with an avoiding opening for the sleeve to pass through, and a sealing groove is formed in an area between the inner wall of the avoiding opening and the end face of the inner shell.

Further, coil structure includes stator shell and the coil package of setting in stator shell, and stator shell has a plurality of breachs that set up around the sleeve pipe, and some structures of inner shell are filled in a plurality of breachs, and the terminal surface of stator shell and the terminal surface of inner shell all with the sealing member butt.

Further, the coil structure includes a plurality of contact pins that set up side by side, and the coil pack still includes the socket, and the socket is injection moulding's an organic whole structure with moulding plastics, and the bayonet socket of a plurality of contact pins all is located the cavity of socket, and the opening orientation of socket deviates from one side of valve body subassembly.

Further, the coil assembly further comprises a plugging cap, and one end, far away from the valve body assembly, of the sleeve is located in a cavity of the plugging cap, wherein a gap is formed between the top wall of the plugging cap and the top wall of the sleeve.

Further, the fixing clip comprises a fixing ring and a fixing plate which are connected with each other, the fixing ring is fixedly connected with the coil assembly, the fixing plate is fixedly connected with the valve body assembly, the sleeve penetrates through the fixing ring, and the inner diameter of the fixing ring is smaller than the outer diameter of the sealing element.

Further, coil pack includes the coil structure and moulds the shell with moulding, moulds plastics the shell including shell and a plurality of fixed columns of setting on the shell, and the coil structure is located the cavity of shell, and solid fixed ring has a plurality of through-holes, a plurality of fixed columns and a plurality of through-hole one-to-one spacing cooperation.

Further, the valve body assembly comprises an outer valve seat, an inner valve seat and a connecting sleeve, the inner valve seat is arranged in a cavity of the outer valve seat, one end of the connecting sleeve is connected with the inner valve seat, the other end of the connecting sleeve is connected with the sleeve, and the fixing plate is fixedly connected with the outer valve seat.

Furthermore, the side wall of the outer valve seat is provided with a connecting hole, the electromagnetic valve further comprises a fastening piece, and the fixing plate is connected with the connecting hole through the fastening piece.

Use the technical scheme of the utility model, a solenoid valve is provided, include: a valve body assembly; the sleeve is connected with the valve body assembly; the coil assembly is sleeved on the sleeve and provided with a sealing groove surrounding the sleeve; the sealing element is positioned in the sealing groove and used for plugging a gap between the coil assembly and the sleeve; the fixing clip, one side and coil pack fixed connection and with the sealing member butt of fixing clip, the opposite side and the valve body subassembly fixed connection of fixing clip. By adopting the scheme, the sealing element is arranged in the sealing groove, one side of the fixing clamp is fixedly connected with the coil assembly and is abutted against the sealing element, so that the gap between the coil assembly and the sleeve can be blocked by the sealing element, water stain in the working process of the electromagnetic valve is prevented from entering the coil assembly, the coil assembly is prevented from being corroded, the working performance and the service life of the coil assembly are improved, and the sealing effect of the electromagnetic valve is further improved. Wherein, can play limiting displacement to the sealing member in the axial through the fixing clip, guarantee that the sealing member can not take place to drop. And the fixing clip is a structure for connecting the coil assembly and the valve body assembly, so that two functions can be realized by one structure of the fixing clip without independently arranging a structural member for limiting the sealing element, thereby simplifying the structure of the electromagnetic valve and reducing the cost.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic structural diagram of a solenoid valve provided in an embodiment of the present invention;

FIG. 2 shows a cross-sectional view of the solenoid valve of FIG. 1;

FIG. 3 shows a schematic structural view of the coil assembly of FIG. 1;

FIG. 4 illustrates a bottom view of the coil assembly of FIG. 3;

FIG. 5 shows a top view of the solenoid valve of FIG. 1;

fig. 6 shows a schematic structural view of the fixing clip of fig. 1.

Wherein the figures include the following reference numerals:

10. a valve body assembly; 11. an outer valve seat; 111. connecting holes; 12. an inner valve seat; 13. connecting sleeves;

20. a sleeve;

30. a coil assembly; 31. a coil structure; 311. a stator housing; 312. a coil package; 313. inserting a pin; 32. injecting a plastic shell; 321. a sealing groove; 322. a housing; 3221. avoiding the mouth; 323. an inner shell; 324. fixing a column; 33. a socket; 34. a plugging cap;

40. a seal member;

50. fixing the card; 51. a fixing ring; 511. a through hole; 52. and (7) fixing the plate.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 6, an embodiment of the present invention provides a solenoid valve, including: a valve body assembly 10; the sleeve 20, the sleeve 20 and the valve body assembly 10 are connected; a coil assembly 30 fitted over the sleeve 20, the coil assembly 30 having a sealing groove 321 surrounding the sleeve 20; a sealing member 40, the sealing member 40 being located in the sealing groove 321, the sealing member 40 being used for sealing a gap between the coil assembly 30 and the sleeve 20; and a fixing clip 50, one side of the fixing clip 50 is fixedly connected with the coil assembly 30 and is abutted against the sealing member 40, and the other side of the fixing clip 50 is fixedly connected with the valve body assembly 10.

Adopt this scheme, set up sealing member 40 in seal groove 321, and one side and coil pack 30 fixed connection of fixing clip 50 and sealing member 40 butt, can block up the clearance between coil pack 30 and the sleeve pipe 20 through sealing member 40 like this, prevented that the water stain among the solenoid valve working process from getting into coil pack 30, avoided coil pack 30 to be corroded, thereby improved coil pack 30's working property and life, and then improved the sealed effect of solenoid valve. Wherein, can play limiting displacement to sealing member 40 in the axial through fixing clip 50, guarantee that sealing member 40 can not take place to drop. Moreover, the fixing clip 50 is a structure for connecting the coil assembly 30 and the valve body assembly 10, so that two functions can be realized by one structure of the fixing clip 50 without separately arranging a structural member for limiting the sealing element 40, thereby simplifying the structure of the solenoid valve and reducing the cost.

The coil assembly 30 includes a coil structure 31 and an injection molding shell 32, the injection molding shell 32 wraps the coil structure 31, a sealing groove 321 is formed in one side of the injection molding shell 32 facing the fixing clip 50, and the fixing clip 50 is fixedly connected with the injection molding shell 32. The side of the injection molding shell 32 facing the fixing clip 50 is provided with a sealing groove 321, and the sealing element 40 is located in the sealing groove 321, the fixing clip 50 is fixedly connected with the injection molding shell 32, so that the sealing groove 321 can limit the sealing element 40, the position of the sealing element 40 in the radial direction and the axial direction is limited, and the sealing element 40 can effectively block the gap between the coil assembly 30 and the sleeve 20. The injection molding housing 32 is used for wrapping the coil structure 31 and protecting the coil structure 31.

Further, the injection molding shell 32 includes an outer shell 322 and an inner shell 323, the coil structure 31 is located in the cavity of the outer shell 322, the inner shell 323 is located in the coil structure 31 and is sleeved on the ferrule 20, the outer shell 322 has an avoidance port 3221 for the ferrule 20 to pass through, and a sealing groove 321 is formed in a region between an inner wall of the avoidance port 3221 and an end surface of the inner shell 323. By providing the escape opening 3221, a sealing groove 321 is formed in the region between the inner wall of the escape opening 3221 and the end face of the inner housing 323.

The coil structure 31 includes a stator outer shell 311 and a coil 312 disposed in the stator outer shell 311, the stator outer shell 311 has a plurality of notches disposed around the sleeve 20, a part of the structure of the inner shell 323 is filled in the plurality of notches, and both an end surface of the stator outer shell 311 and an end surface of the inner shell 323 abut against the sealing member 40. A part of the structure of the inner case 323 is filled in the plurality of notches, so that the coil pack 312 in the stator outer case 311 can be protected; wherein, the terminal surface of stator outer shell 311 and the terminal surface of inner shell 323 all set to with sealing member 40 butt, have increased sealing member 40's contact surface, effectively prevented during the water stain entering coil package 312 of solenoid valve working process to the sealed effect of solenoid valve has been improved.

Specifically, the coil structure 31 includes a plurality of pins 313 arranged side by side, the coil assembly 30 further includes a socket 33, the socket 33 and the injection molded shell 32 are an injection molded integral structure, the plugs of the plurality of pins 313 are all located in a cavity of the socket 33, and an opening of the socket 33 faces a side away from the valve body assembly 10. The plug connectors of the plurality of contact pins 313 are arranged in the cavity of the plug seat 33, and the opening of the plug seat 33 faces the side deviating from the valve body assembly 10, so that water stains in the working process of the electromagnetic valve are prevented from entering the plug seat 33, the plug connectors of the plurality of contact pins 313 are in contact with the water stains to cause poor contact, and the working performance and the service life of the coil assembly 30 are prevented from being influenced by the water stains. The socket 33 and the injection molding shell 32 are arranged into an injection molding integrated structure, so that the processing is convenient, and the production cost is reduced.

In the present embodiment, the coil assembly 30 further includes a blocking cap 34, and an end of the sleeve 20 away from the valve body assembly 10 is located in a cavity of the blocking cap 34, wherein a gap is provided between a top wall of the blocking cap 34 and a top wall of the sleeve 20. By providing a gap between the top wall of the containment cap 34 and the top wall of the sleeve 20, the coil assembly 30 can be adapted to different valve body assemblies 10, increasing the versatility of the coil assembly 30. The blocking cap 34 and the injection molding shell 32 are arranged to be an integral structure formed by injection molding, so that the processing is convenient, and the production cost is reduced. Optionally, the containment cap 34 and the injection molded shell 32 are of injection molded unitary construction.

Specifically, the fixing clip 50 includes a fixing ring 51 and a fixing plate 52 connected to each other, the fixing ring 51 is fixedly connected to the coil block 30, the fixing plate 52 is fixedly connected to the valve body block 10, the sleeve 20 passes through the fixing ring 51, and an inner diameter of the fixing ring 51 is smaller than an outer diameter of the sealing member 40. The fixing ring 51 and the fixing plate 52 which are connected with each other are arranged, so that the coil assembly 30 and the valve body assembly 10 are conveniently connected, and the stability and the reliability of the coil assembly 30 during operation are ensured. The inner diameter of the fixing ring 51 is set to be smaller than the outer diameter of the sealing member 40, so that the fixing ring 51 can be abutted against the sealing member 40, and the sealing member 40 is prevented from falling off.

The coil assembly 30 includes a coil structure 31 and an injection molding shell 32, the injection molding shell 32 includes a housing 322 and a plurality of fixing posts 324 disposed on the housing 322, the coil structure 31 is located in a cavity of the housing 322, the fixing ring 51 has a plurality of through holes 511, and the plurality of fixing posts 324 and the plurality of through holes 511 are in one-to-one corresponding limiting fit. Through the one-to-one limited fit of the plurality of fixing posts 324 and the plurality of through holes 511, the fixing clip 50 can limit the coil assembly 30 in the circumferential direction, prevent the coil assembly 30 from rotating, and ensure the reliability of the connection between the coil assembly 30 and the fixing clip 50. The plurality of fixing columns 324 and the plurality of through holes 511 are welded, and are more stable and firm due to the welding mode.

Further, the valve body assembly 10 includes an outer valve seat 11, an inner valve seat 12 and a connecting sleeve 13, the inner valve seat 12 is disposed in the cavity of the outer valve seat 11, one end of the connecting sleeve 13 is connected with the inner valve seat 12, the other end of the connecting sleeve 13 is connected with the sleeve 20, and the fixing plate 52 is fixedly connected with the outer valve seat 11. The outer valve seat 11 is arranged and can be fixedly connected with the fixing plate 52, so that the coil assembly 30 is connected with the valve body assembly 10; a nipple 13 is provided for connecting the inner valve seat 12 and the sleeve 20.

Wherein, the side wall of the outer valve seat 11 has a connection hole 111, the solenoid valve further comprises a fastening member, and the fixing plate 52 is connected with the connection hole 111 through the fastening member. The connection holes 111 are provided to enable connection with the fixing plate 52 by a fastener. The fastening piece is a bolt, the connecting hole 111 is a threaded hole, and the bolt is connected, so that the mounting and the dismounting are facilitated.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A solenoid valve, comprising:

a valve body assembly (10);

a sleeve (20), the sleeve (20) being connected to the valve body assembly (10);

a coil assembly (30) fitted over the sleeve (20), the coil assembly (30) having a seal groove (321) around the sleeve (20);

a seal (40), the seal (40) located within the seal groove (321), the seal (40) for sealing a gap between the coil assembly (30) and the sleeve (20);

the coil assembly comprises a fixing clamp (50), one side of the fixing clamp (50) is fixedly connected with the coil assembly (30) and abutted against the sealing element (40), and the other side of the fixing clamp (50) is fixedly connected with the valve body assembly (10).

2. The solenoid valve according to claim 1, wherein the coil assembly (30) comprises a coil structure (31) and an injection molded case (32), the injection molded case (32) encloses the coil structure (31), a side of the injection molded case (32) facing the fixing clip (50) has the sealing groove (321), and the fixing clip (50) and the injection molded case (32) are fixedly connected.

3. The electromagnetic valve according to claim 2, wherein the injection molding housing (32) comprises an outer housing (322) and an inner housing (323), the coil structure (31) is located in a cavity of the outer housing (322), the inner housing (323) is located in the coil structure (31) and sleeved on the sleeve (20), the outer housing (322) has an avoiding opening (3221) for the sleeve (20) to pass through, and an area between an inner wall of the avoiding opening (3221) and an end surface of the inner housing (323) forms the sealing groove (321).

4. A solenoid valve according to claim 3, characterised in that the coil structure (31) comprises a stator outer casing (311) and a coil pack (312) arranged inside the stator outer casing (311), the stator outer casing (311) having a plurality of notches arranged around the sleeve (20), a part of the structure of the inner casing (323) being filled in the plurality of notches, an end face of the stator outer casing (311) and an end face of the inner casing (323) both abutting against the seal (40).

5. The solenoid valve according to claim 2, wherein the coil structure (31) comprises a plurality of pins (313) arranged side by side, the coil assembly (30) further comprises a socket (33), the socket (33) and the injection molding housing (32) are injection molded and integrated structures, the plug heads of the plurality of pins (313) are all located in the cavity of the socket (33), and the opening of the socket (33) faces to the side away from the valve body assembly (10).

6. A solenoid valve according to claim 2, characterised in that the coil assembly (30) further comprises a containment cap (34), the end of the sleeve (20) remote from the valve body assembly (10) being located within the cavity of the containment cap (34), wherein there is a gap between the top wall of the containment cap (34) and the top wall of the sleeve (20).

7. The solenoid valve according to claim 1, wherein the fixing clip (50) comprises a fixing ring (51) and a fixing plate (52) which are connected with each other, the fixing ring (51) is fixedly connected with the coil assembly (30), the fixing plate (52) is fixedly connected with the valve body assembly (10), the sleeve (20) passes through the fixing ring (51), and the inner diameter of the fixing ring (51) is smaller than the outer diameter of the sealing member (40).

8. The electromagnetic valve according to claim 7, characterized in that the coil assembly (30) comprises a coil structure (31) and an injection molding shell (32), the injection molding shell (32) comprises an outer shell (322) and a plurality of fixing posts (324) arranged on the outer shell (322), the coil structure (31) is located in a cavity of the outer shell (322), the fixing ring (51) has a plurality of through holes (511), and the plurality of fixing posts (324) and the plurality of through holes (511) are in one-to-one position limiting fit.

9. The solenoid valve according to claim 7, characterized in that the valve body assembly (10) comprises an outer valve seat (11), an inner valve seat (12) and a connecting sleeve (13), the inner valve seat (12) is arranged in the cavity of the outer valve seat (11), one end of the connecting sleeve (13) is connected with the inner valve seat (12), the other end of the connecting sleeve (13) is connected with the sleeve (20), and the fixing plate (52) is fixedly connected with the outer valve seat (11).

10. The solenoid valve according to claim 9, characterized in that the side wall of the outer valve seat (11) has a connection hole (111), the solenoid valve further comprising a fastener, the fixing plate (52) being connected with the connection hole (111) by the fastener.