CN211315282U

CN211315282U - Movable iron core switch structure of control valve

Info

Publication number: CN211315282U
Application number: CN201921571106.1U
Authority: CN
Inventors: 刘兴华; 刘善明
Original assignee: Ganzhou Runtong Electric Appliance Co ltd
Current assignee: Ganzhou Runtong Electric Appliance Co ltd
Priority date: 2019-09-20
Filing date: 2019-09-20
Publication date: 2020-08-21
Anticipated expiration: 2029-09-20

Abstract

The utility model discloses a control valve moves iron core switch structure, including the valve body, be equipped with the coil skeleton in the valve body, be equipped with the cavity in the coil skeleton, be equipped with the movable iron core in the cavity, be equipped with the elastomer in the cavity and be connected with the movable iron core, the valve body is equipped with the magnetic conduction subassembly outward, the magnetic conduction subassembly includes coil subassembly and magnetic conduction support, the magnetic conduction support is located outside the cavity; when the coil assembly is electrified, the coil assembly, the magnetic conduction bracket and the movable iron core form an electromagnetic loop. The static iron core originally arranged in the control valve is omitted, the external magnetic conduction support and the coil assembly are used for forming an electromagnetic circuit with the movable iron core, so that the sealing structure of the cavity where the movable iron core is arranged in the valve body is simpler, parts such as sealing rings in the cavity are reduced, the assembly difficulty is reduced, and the production efficiency is improved.

Description

Movable iron core switch structure of control valve

Technical Field

The utility model relates to a control valve field especially relates to a control valve moves iron core switch structure.

Background

The control valve generally comprises a structure of combining a movable iron core and a static iron core, and the movable iron core is adsorbed by the static iron core to open or close the control valve. However, in the existing control valve, when the structures of the static iron core and the movable iron core are assembled, the sealing performance needs to be processed, parts such as a sealing ring and the like are added, the complexity of the structure of the valve body is increased, and the difficulty of assembly is also increased.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model discloses solve the quiet iron core in the current control valve at least to a certain extent and increase the complexity of valve body structure and increased the problem of the assembly degree of difficulty of control valve. Therefore, on the one hand, a movable iron core switch structure of the control valve is provided, and on the other hand, the control valve with the movable iron core switch structure of the control valve is provided.

The utility model discloses the technical scheme of an aspect is so realized:

a control valve movable iron core switch structure comprises a valve body, wherein a coil framework is arranged in the valve body, a cavity is arranged in the coil framework, a movable iron core is arranged in the cavity, an elastic piece is arranged in the cavity and connected with the movable iron core, a magnetic conduction assembly is arranged outside the valve body and comprises a coil assembly and a magnetic conduction support, and the magnetic conduction support is arranged outside the cavity; when the coil assembly is electrified, the coil assembly, the magnetic conduction bracket and the movable iron core form an electromagnetic loop.

As a further alternative of the control valve movable iron core switch structure, the magnetic conductive support is a square support, the movable iron core is arranged in the square of the magnetic conductive support, a magnetic conductive convex block is arranged on the magnetic conductive support, and a groove corresponding to the magnetic conductive convex block is arranged on the coil framework corresponding to one end of the movable iron core; the magnetic conduction lug is inserted into the groove, and when the coil assembly is electrified, the magnetic conduction lug drives the movable iron core.

As a further alternative of the structure of the movable core switch of the control valve, the elastic member is provided between the recess and the movable core.

As a further alternative of the control valve plunger switch structure, the resilient member is a spring.

As a further alternative of the control valve moving iron core switch structure, the magnetic conductive support comprises a bottom plate and a U-shaped cover plate, the bottom plate is arranged at the bottom of the cavity of the valve body, the bottom plate is provided with a through hole for the valve body to pass through, the U-shaped cover plate covers the cavity of the valve body, two ends of the U-shaped cover plate are connected with the bottom plate, and the coil assembly is connected with the U-shaped cover plate; the magnetic conduction lug is arranged on the U-shaped cover plate.

As a further alternative of the control valve movable iron core switch structure, the magnetic conduction convex block is directly formed by deep drawing of the magnetic conduction bracket.

As a further alternative of the control valve moving iron core switch structure, the coil framework is an isolated non-through hole coil framework.

The control valve movable iron core switch structure has the beneficial effects that: the static iron core originally arranged in the control valve is omitted, the external magnetic conduction support and the coil assembly are used for forming an electromagnetic circuit with the movable iron core, so that the sealing structure of the cavity where the movable iron core is arranged in the valve body is simpler, parts such as sealing rings in the cavity are reduced, the assembly difficulty is reduced, and the production efficiency is improved. Reduce the number of parts and the machining precision. The uniformity of the switching characteristics is increased.

The utility model discloses on the other hand's technical scheme is realized like this:

a control valve comprises any one of the control valve movable iron core switch structures.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a movable iron core switch structure of a control valve according to the present invention;

fig. 2 is a cross-sectional view of a movable iron core switch structure of the control valve of the present invention;

FIG. 3 is a schematic structural view of a groove on the valve body;

fig. 4 is a schematic structural view of the magnetic conductive bracket;

fig. 5 is a schematic structural view of the magnetic conductive bump;

FIG. 6 is a schematic structural diagram of the bobbin;

fig. 7 is a cross-sectional view of a control valve.

In the figure: 100. a valve body; 1. a coil bobbin; 11. a groove; 12. a chamber; 13. a movable iron core; 14. a spring; 15. a socket; 2. a magnetic conductive component; 21. a coil assembly; 22. a magnetic conductive bracket; 221. a U-shaped cover plate; 2211. a magnetic conductive bump; 222. a base plate; 2221. and a through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. 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.

In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members.

Referring to fig. 1 to 6, a switch structure of a movable iron core 13 of a control valve is shown, which includes a valve body 100, a coil frame 1 is arranged in the valve body 100, a cavity 12 is arranged in the coil frame 1, the movable iron core 13 is arranged in the cavity 12, an elastic member is arranged in the cavity 12 and connected to the movable iron core 13, a magnetic conducting assembly 2 is arranged outside the valve body 100, the magnetic conducting assembly 2 includes a coil assembly 21 and a magnetic conducting support 22, and the magnetic conducting support 22 is arranged outside the cavity 12; when the coil assembly 21 is energized, the coil assembly 21, the magnetic conductive bracket 22 and the plunger 13 form an electromagnetic circuit.

In brief, the movable iron core 13 in the valve body 100 is driven by the external magnetic conductive assembly 2, so that the position of the movable iron core 13 is changed; so, saved and established the quiet iron core in the control valve originally, coil pack 21 converts electricity to magnetism, and magnetism forms electromagnetic circuit by the magnetic material part, through external magnetic conduction support 22 and coil pack 21 promptly with movable iron core 13 forms electromagnetic circuit for the seal structure of cavity 12 at movable iron core 13 place is simpler in the valve body 100, reduces required parts such as sealing washer in the cavity 12, reduces the assembly degree of difficulty, promotes production efficiency.

It should be noted that, referring to fig. 6, the bobbin 1 is an isolated non-through hole 2221 bobbin 1. Namely, because the static iron core is omitted, an opening is not needed to be arranged on the coil framework 1 to electrify the static iron core, and the need of carrying out sealing treatment on the coil framework 1 is avoided. The bobbin 1 is provided with a socket 15 for inserting the coil assembly 21.

In some specific embodiments, referring to fig. 3, 4 and 5, the magnetic conductive bracket 22 is a square bracket, the movable iron core 13 is disposed in the square of the magnetic conductive bracket 22, a magnetic conductive protrusion 2211 is disposed on the magnetic conductive bracket 22, and a groove 11 corresponding to the magnetic conductive protrusion 2211 is disposed on the outer wall of the valve body 100 corresponding to one end of the movable iron core 13; the magnetic conduction projection 2211 is inserted into the groove 11, and when the coil assembly 21 is energized, the magnetic conduction projection 2211 drives the movable iron core 13.

Specifically, the movable iron core 13 is placed in the frame of the magnetic conductive bracket 22, and when the coil assembly 21 is energized, the coil assembly 21, the magnetic conductive bracket 22, and the movable iron core 13 form an electromagnetic circuit. The magnetic conduction lug 2211 is arranged on the magnetic conduction bracket 22, and magnetic poles are concentrated to drive the movable iron core 13; as a matter of course, the groove 11 formed in the valve body 100 can allow the magnetic conductive protrusion 2211 to be closer to the movable iron core 13, so that the driving effect is better; only the magnetic force on the magnetic conduction projection 2211 on the magnetic conduction bracket 22 reaches the size capable of driving the movable iron core 13, and the rest part of the magnetic conduction bracket 22 has no influence on the movable iron core 13 basically.

More specifically, the elastic element is arranged between the groove 11 and the movable iron core 13; and the resilient member is a spring 14.

In some specific embodiments, in order to facilitate assembly, referring to fig. 4 and 5, the magnetic conductive bracket 22 includes a bottom plate 222 and a U-shaped cover plate 221, the bottom plate 222 is disposed at the bottom of the chamber 12 of the valve body 100, a through hole 2221 for the valve body 100 to pass through is disposed on the bottom plate 222, the U-shaped cover plate 221 covers the chamber 12 of the valve body 100, two ends of the U-shaped cover plate 221 are connected to the bottom plate 222, and the coil assembly 21 is connected to the U-shaped cover plate 221; the magnetic conduction bump 2211 is arranged on the U-shaped cover plate 221. The magnetic conductive protrusion 2211 is directly stamped from the magnetic conductive bracket 22. The whole magnetic conduction bracket 22 has simple structure and is easy to process.

Referring to fig. 7, there is shown a control valve including the above-described control valve plunger 13 opening and closing structure. The movable iron core 13 can be controlled by using the control valve movable iron core 13 switch structure, so that the effect of opening or closing the control valve is achieved, and a medium inlet and a medium outlet of the control valve are communicated or separated.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A control valve movable iron core switch structure comprises a valve body, wherein a coil framework is arranged in the valve body, a cavity is arranged in the coil framework, a movable iron core is arranged in the cavity, an elastic piece is arranged in the cavity and connected with the movable iron core, and the control valve movable iron core switch structure is characterized in that a magnetic conduction assembly is arranged outside the valve body and comprises a coil assembly and a magnetic conduction support, and the magnetic conduction support is arranged outside the cavity; when the coil assembly is electrified, the coil assembly, the magnetic conduction bracket and the movable iron core form an electromagnetic loop.

2. The switch structure of the movable iron core of the control valve according to claim 1, wherein the magnetic conductive bracket is a square bracket, the movable iron core is arranged in the square of the magnetic conductive bracket, a magnetic conductive bump is arranged on the magnetic conductive bracket, and a groove corresponding to the magnetic conductive bump is arranged on the coil framework corresponding to one end of the movable iron core; the magnetic conduction lug is inserted into the groove, and when the coil assembly is electrified, the magnetic conduction lug drives the movable iron core.

3. The switch structure of claim 2, wherein said resilient member is disposed between said recess and said plunger.

4. The switch structure of claim 3, wherein said resilient member is a spring.

5. The switch structure of a control valve moving iron core according to claim 2, characterized in that the magnetic conductive bracket comprises a bottom plate and a U-shaped cover plate, the bottom plate is arranged at the bottom of the cavity of the valve body, the bottom plate is provided with a through hole for the valve body to pass through, the U-shaped cover plate covers the cavity of the valve body, two ends of the U-shaped cover plate are connected with the bottom plate, and the coil assembly is connected with the U-shaped cover plate; the magnetic conduction lug is arranged on the U-shaped cover plate.

6. The switch structure of the control valve moving iron core according to the claim 2 or 5, characterized in that the magnetic conductive lug is directly deep-drawn by the magnetic conductive bracket.

7. The switch structure of claim 1, wherein said bobbin is an isolated non-through hole bobbin.

8. A control valve comprising the plunger switch structure of any one of claims 1-7.