CN219035733U

CN219035733U - Electromagnetic driving structure of high-frequency electromagnetic valve

Info

Publication number: CN219035733U
Application number: CN202320136943.1U
Authority: CN
Inventors: 顾国云; 毛杉海; 宋开臣
Original assignee: Yuyao Sanlixin Solenoid Valve Co ltd
Current assignee: Yuyao Sanlixin Solenoid Valve Co ltd
Priority date: 2023-02-07
Filing date: 2023-02-07
Publication date: 2023-05-16
Anticipated expiration: 2033-02-07

Abstract

The utility model provides an electromagnetic driving structure of a high-frequency electromagnetic valve, which comprises a permanent magnet valve core and an electromagnetic coil group, wherein the permanent magnet valve core can move along the vertical direction under the driving of a magnetic field generated by the electromagnetic coil group; the electromagnetic coil group comprises a first air coil and a second air coil which are arranged at intervals up and down, the first air coil is electrically connected with the second air coil, and the current directions of the first air coil and the second air coil are opposite; the permanent magnet valve core is arranged between the first hollow coil and the second hollow coil, the S pole and the N pole of the permanent magnet valve core are vertically arranged, the N pole is upward and is close to the first hollow coil, and the S pole is downward and is close to the second hollow coil; the electromagnetic driving structure of the high-frequency electromagnetic valve overcomes the defects that the existing electromagnetic driving structure is low in driving frequency and is not applicable to the high-frequency electromagnetic valve.

Description

Electromagnetic driving structure of high-frequency electromagnetic valve

Technical Field

The utility model relates to the field of electromagnetic valves, in particular to an electromagnetic driving structure of a high-frequency electromagnetic valve.

Background

The electromagnetic valve is an automatic element for controlling the on-off of fluid, and belongs to an actuator, wherein the electromagnetic component is arranged in the electromagnetic valve, and the shell is generally made of metal or plastic and other materials. When the current of the solenoid valve coil is on-off, the fixed iron core generates a variable magnetic field to generate magnetic force to attract the moving sheet to move. The moving plate generates displacement to control the on-off of the fluid, thereby achieving the purpose of controlling the fluid. Electromagnetic high-frequency valves are used as a part of automatic control systems, are widely applied to the fields of military, industry, science and the like, and are developing towards intelligentization, long service life and high integration level.

Conventional solenoid valves often use a magnetic field generated by an electromagnet to control the movement of a metal body spool. The design leads to larger inductance of the electromagnet, the driving frequency is difficult to rise, and the design of a follow-up matched driving circuit is complex. The high-frequency effect is required to be further improved on the matched fittings and circuit design, the design difficulty of the whole valve is increased, and the volume is larger.

Disclosure of Invention

First, the technical problem to be solved

The utility model aims to solve the problem of providing an electromagnetic driving structure of a high-frequency electromagnetic valve so as to overcome the defects that the existing electromagnetic driving structure is low in driving frequency and not applicable to the high-frequency electromagnetic valve.

(II) technical scheme

In order to solve the technical problems, the utility model provides an electromagnetic driving structure of a high-frequency electromagnetic valve, which comprises a permanent magnet valve core and an electromagnetic coil group, wherein the permanent magnet valve core can move along the vertical direction under the driving of a magnetic field generated by the electromagnetic coil group; the electromagnetic coil group comprises a first air coil and a second air coil which are arranged at intervals up and down, the first air coil is electrically connected with the second air coil, and the current directions of the first air coil and the second air coil are opposite; the permanent magnet valve core is installed between the first hollow coil and the second hollow coil, the S pole and the N pole of the permanent magnet valve core are vertically arranged, the N pole faces upwards and is close to the first hollow coil, and the S pole faces downwards and is close to the second hollow coil.

Further, the electromagnetic coil group further comprises a coil connecting wire, and the first air coil and the second air coil are connected in series or in parallel through the coil connecting wire.

Further, when the first air coil and the second air coil are connected in series, the enamelled wires of the first air coil and the second air coil are wound in opposite directions.

Further, the electromagnetic driving structure further comprises a driving unit, and the driving unit is electrically connected with the electromagnetic coil assembly.

Further, the first air coil and the second air coil have the same structure. The first hollow coil and the second hollow coil comprise a coil framework and enameled wires, the coil framework is of a hollow structure, and the enameled wires are wound on the outer circumferential surface of the coil framework.

(III) beneficial effects

According to the electromagnetic driving structure of the high-frequency electromagnetic valve, provided by the utility model, one permanent magnet is adopted as the valve core, two air coils are adopted to generate a driving magnetic field, and magnetic fluxes of main parts of electromagnetic fields generated by the two air coils are mutually counteracted, so that the inductance is reduced, and the valve switching speed is greatly improved; the inductance component with small overall inductance is adopted, so that the design of a driving circuit is greatly simplified; the driving capacity of the double-air coil driving mode is twice that of the single coil; the key technology greatly improves the switching frequency of the electromagnetic valve, and overcomes the defects that the existing electromagnetic driving structure is low in driving frequency and not applicable to high-frequency electromagnetic valves.

Drawings

FIG. 1 is a schematic diagram of the electromagnetic drive structure of a high frequency solenoid valve of the present utility model;

the corresponding component names for each reference number in the figures are: 1. a permanent magnet valve core; 2. an electromagnetic coil assembly; 3. a driving unit; 21. a first air-core coil; 22. a second air-core coil; 23. and a coil connecting wire.

Detailed Description

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

Referring to fig. 1, the utility model provides an electromagnetic driving structure of a high-frequency electromagnetic valve, which comprises a permanent magnet valve core 1, an electromagnetic coil group 2 and a driving unit 3, wherein the permanent magnet valve core 1 can move along the vertical direction under the driving of a magnetic field generated by the electromagnetic coil group 2, and the driving unit 3 is electrically connected with the electromagnetic coil group 2.

Referring to fig. 1, the electromagnetic coil assembly 2 includes a first air core coil 21 and a second air core coil 22 arranged at intervals from top to bottom, the first air core coil 21 and the second air core coil 22 are electrically connected, and the current directions of the first air core coil 21 and the second air core coil 22 are opposite, and most of magnetic fields generated by the two air core coils under the driving of the driving unit cancel each other, so that the overall inductance of the electromagnetic coil assembly is reduced, and the driving capability of the permanent magnet valve core is unchanged.

The permanent magnet valve core 1 is a small permanent magnet, and is installed between the first air coil 21 and the second air coil 22, the S pole and the N pole of the permanent magnet valve core 1 are vertically arranged, the N pole faces upwards and is close to the first air coil 21, and the S pole faces downwards and is close to the second air coil 22.

Referring to fig. 1, the electromagnetic coil assembly 2 further includes a coil connection line 23, and the first air coil 21 and the second air coil 22 are connected in series or in parallel through the coil connection line 23. When the first air coil 21 and the second air coil 22 are connected in series, the enameled wires of the first air coil 21 and the second air coil 22 are wound in opposite directions.

Referring to fig. 1, the first air coil 21 and the second air coil 22 have the same structure. The first air core coil 21 and the second air core coil 22 each comprise a coil skeleton and enameled wires, wherein the coil skeletons are hollow structures, and the enameled wires are wound on the outer circumferential surfaces of the coil skeletons.

According to the electromagnetic driving structure of the high-frequency electromagnetic valve, one permanent magnet is adopted as a valve core, two air coils are adopted to generate a driving magnetic field, magnetic fluxes of electromagnetic field main body parts generated by the two air coils are mutually counteracted, inductance is reduced, and valve opening and closing speed is greatly improved; the inductance component with small overall inductance is adopted, so that the design of a driving circuit is greatly simplified; the driving capacity of the double-air coil driving mode is twice that of the single coil; the key technology greatly improves the switching frequency of the electromagnetic valve, so that the electromagnetic valve can be opened at high frequency and is suitable for the high-frequency electromagnetic valve.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.

Claims

1. An electromagnetic drive structure of a high-frequency electromagnetic valve is characterized in that: the permanent magnet valve comprises a permanent magnet valve core (1) and an electromagnetic coil group (2), wherein the permanent magnet valve core (1) can move along the vertical direction under the drive of a magnetic field generated by the electromagnetic coil group (2); the electromagnetic coil group (2) comprises a first air coil (21) and a second air coil (22) which are arranged at intervals up and down, the first air coil (21) and the second air coil (22) are electrically connected, and the current directions of the first air coil (21) and the second air coil (22) are opposite; the permanent magnet valve core (1) is installed between the first hollow coil (21) and the second hollow coil (22), the S pole and the N pole of the permanent magnet valve core (1) are vertically arranged, the N pole faces upwards and is close to the first hollow coil (21), and the S pole faces downwards and is close to the second hollow coil (22).

2. The electromagnetic driving structure of a high-frequency electromagnetic valve according to claim 1, characterized in that: the electromagnetic coil group (2) further comprises a coil connecting wire (23), and the first air coil (21) and the second air coil (22) are connected in series or in parallel through the coil connecting wire (23).

3. The electromagnetic driving structure of a high-frequency electromagnetic valve according to claim 2, characterized in that: when the first air coil (21) and the second air coil (22) are connected in series, the enamelled wires of the first air coil (21) and the second air coil (22) are wound in opposite directions.

4. The electromagnetic driving structure of a high-frequency electromagnetic valve according to claim 1, characterized in that: the electromagnetic coil assembly also comprises a driving unit (3), wherein the driving unit (3) is electrically connected with the electromagnetic coil assembly (2).

5. The electromagnetic driving structure of a high-frequency electromagnetic valve according to claim 1, characterized in that: the first air coil (21) and the second air coil (22) have the same structure.

6. The electromagnetic driving structure of a high-frequency electromagnetic valve according to claim 5, wherein: the first air-core coil (21) and the second air-core coil (22) comprise a coil framework and enameled wires, the coil framework is of a hollow structure, and the enameled wires are wound on the outer circumferential surface of the coil framework.