A reed type micro solenoid valve

Abstract

The present invention discloses a reed-type micro-electromagnetic valve, which relates to the field of micro-electromagnetic valves. The micro-electromagnetic valves currently used in the market usually use electromagnetic matching springs to complete the opening and closing of the solenoid valves. However, the existing springs have a large installation space, are easily dislocated or deformed during use, and have poor stability. The following scheme is proposed, which includes a valve body, a protective shell for installation is provided inside the valve body, and a coil frame for installing a coil is provided inside the protective shell, and a reed for rebound is provided on the top of the valve body. The reed-type micro-electromagnetic valve replaces the spring with a hollow flat-plate reed provided inside, which can solve the problem that the spring installation space is large and the reed requires very little space, and achieves space optimization in terms of volume, while avoiding the problem that the spring is inconvenient to install, is easily dislocated or deformed during use, and has poor stability. At the same time, the insulating ring is convenient for blocking the magnetic circuit, making the magnetic force stronger.

Description

Technical Field

[0001] The invention relates to the field of micro solenoid valves, and in particular to a reed type micro solenoid valve. Background Art

[0002] The solenoid valve is an industrial device controlled by electromagnetics. It is a basic automation component used to control fluids and is an actuator. The micro solenoid valves currently used on the market usually use electromagnetic matching springs to complete the opening and closing of the solenoid valve. However, the existing spring installation space is large, the reed requires very little space, the spring is inconvenient to install, and it is easy to be misplaced or deformed during use, resulting in poor stability. Therefore, there are certain disadvantages in use.

[0003] The micro solenoid valves currently used in the market usually use electromagnetic matching springs to complete the opening and closing of the solenoid valve. However, the existing spring installation space is large, the reed requires very little space, the spring is inconvenient to install, and it is easy to be misplaced or deformed during use, resulting in poor stability. We propose a reed-type micro solenoid valve. Summary of the invention

[0004] A reed-type micro solenoid valve proposed in the present invention solves the problem that the micro solenoid valves currently used on the market usually use electromagnetic matching springs to complete the opening and closing of the solenoid valve. However, the existing spring installation space is large, the reed requires very little space, the spring is inconvenient to install, and it is easy to be misplaced or deformed during use, resulting in poor stability.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A reed-type micro-solenoid valve comprises a valve body, wherein a protective shell for installation is arranged inside the valve body, and a coil frame for installing a coil is arranged inside the protective shell, and a reed for rebound is arranged on the top of the valve body.

[0007] Preferably, the cross section of the coil frame is in an I-shape, a movable groove is provided at the top of the coil frame, an air passage is provided through the bottom of the coil frame, and the middle portion of the coil frame is an iron rod.

[0008] Preferably, an insulating ring is provided on the inner wall of the protective shell, and the protective shell is connected to the top of the coil frame through the insulating ring.

[0009] Preferably, a magnet is provided on the top of the coil frame, and the magnet passes through the movable slot and extends to the inside of the coil frame, a connecting block is provided on the top of the magnet, a movable plate is provided on the circumferential outer wall of the connecting block, and the movable plate is clamped with the connecting block.

[0010] Preferably, one side of the valve body is symmetrically provided with insertion pins, a fixing rod is arrayed on the top of the valve body, and the fixing rod penetrates the reed and extends to the outside thereof, and the fixing rod is fixedly connected to the reed.

[0011] Preferably, the connection block penetrates the spring sheet and extends to the outside thereof, the spring sheet is provided as a hollow flat plate, and the spring sheet is in contact with the movable plate.

[0012] Preferably, the bottom of the coil frame contacts the inner wall of the protective shell, and the height of the coil frame is the same as the height of the protective shell.

[0013] Preferably, the air channel is connected to the movable groove, the size of the air channel is smaller than the size of the magnet, and the cross section of the air channel is convex.

[0014] The beneficial effects of the present invention are:

[0015] 1. Spatial body optimization: The device uses a hollow flat reed to replace the spring, which solves the problem that the spring installation space is large and the reed requires very little space, thus achieving space optimization in terms of volume.

[0016] 2. Stability optimization: The device uses reeds instead of springs, which solves the problem that traditional springs are inconvenient to install and easy to be misplaced or deformed during use, resulting in poor stability.

[0017] 3. Insulating ring magnetic circuit magnetic force enhancement: The device forms a magnetic field by evenly winding the electromagnetic coil on the outside of the coil frame and cooperating with the iron coil frame, thereby cooperating with the magnet to open the airway set inside the coil frame, and then open the solenoid valve. At the same time, the insulating ring set inside the device is convenient to block the magnetic circuit, so that the circuit can pass through from top to bottom, making the magnetic force stronger.

[0018] 4. Integrated coil frame winding optimization: The existing coil needs to install a winding frame separately, which is inconvenient to process and troublesome to wind. However, the integrated coil frame inside the device saves more cost and labor time in processing and is more convenient to use.

[0019] 5. Optimized pin outlet: The device uses pins as the power connection terminal, which makes the connection more convenient.

[0020] To summarize, the device replaces the spring with an internally arranged hollow flat spring leaf, which can solve the problem that the spring installation space is large and the spring leaf requires very small space, thereby achieving space optimization in volume and avoiding the problem that the spring is inconvenient to install and is easy to be misplaced or deformed during use, resulting in poor stability. At the same time, the insulating ring facilitates blocking the magnetic circuit, allowing the circuit to pass through from top to bottom, making the magnetic force stronger. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention.

[0022] Figure 2 It is a structural explosion diagram of the present invention.

[0023] Figure 3 It is a structural cross-sectional view of the present invention.

[0024] Numbers in the figure: 1, valve body; 2, protective shell; 3, coil frame; 4, airway; 5, movable groove; 6, insulating ring; 7, magnet; 8, connecting block; 9, movable plate; 10, reed; 11, fixing rod; 12, pin. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] Reference Figure 1-Figure 3 As shown, a reed-type micro-solenoid valve is provided, wherein a protective shell 2 for installation is provided inside the valve body 1, and a coil frame 3 for installing a coil is provided inside the protective shell 2, and a reed 10 for rebound is provided on the top of the valve body 1.

[0027] like Figure 2 , Figure 3 As shown, the cross section of the coil frame 3 is I-shaped, a movable groove 5 is provided on the top of the coil frame 3, and an airway 4 is provided through the bottom of the coil frame 3, the middle part of the coil frame 3 is an iron rod, an insulating ring 6 is provided on the inner wall of the protective shell 2, and the protective shell 2 is connected to the top of the coil frame 3 through the insulating ring 6, a magnet 7 is provided on the top of the coil frame 3, and the magnet 7 extends through the movable groove 5 to the inside of the coil frame 3, a connecting block 8 is provided on the top of the magnet 7, and a movable plate 9 is provided on the circumferential outer wall of the connecting block 8, and the movable plate 9 is clamped with the connecting block 8;

[0028] The coil frame 3 is convenient for placing the coil, and the coil cooperates with the coil frame 3 to form a magnetic field, so as to cooperate with the magnet 7 for opening and closing. At the same time, the insulating ring 6 is convenient for blocking the magnetic circuit, so that the circuit can pass through from top to bottom, making the magnetic force stronger.

[0029] like Figure 2 , Figure 3As shown, a pin 12 is symmetrically installed on one side of the valve body 1, a fixing rod 11 is installed in an array on the top of the valve body 1, and the fixing rod 11 penetrates the reed 10 and extends to the outside thereof, the fixing rod 11 is fixedly connected to the reed 10, the connecting block 8 penetrates the reed 10 and extends to the outside thereof, the reed 10 is a hollow flat plate, and the reed 10 is in contact with the movable plate 9, the bottom of the coil frame 3 is in contact with the inner wall of the protective shell 2, and the height of the coil frame 3 is the same as the height of the protective shell 2, the airway 4 is connected to the movable groove 5, and the size of the airway 4 is smaller than the size of the magnet 7, and the cross-section of the airway 4 is convex.

[0030] When the present invention is used, firstly, the coil frame 3 is taken out, and the coil is evenly wound on the outside of the coil frame 3, and then the coil frame 3 is placed inside the protective shell 2. At this time, the insulating ring 6 is taken out, and it is placed between the coil frame 3 and the protective shell 2, and they are connected. At this time, the assembled protective shell 2 is placed inside the valve body 1, and the coil is connected to the pins 12 symmetrically arranged on one side of the valve body 1;

[0031] Take out the magnet 7, place it inside the movable groove 5 opened on the top of the coil frame 3, take out the connecting block 8 and the movable plate 9, snap the connecting block 8 and the movable plate 9 together, and connect the top of the connecting block 8 to the magnet 7;

[0032] At this time, take out the reed 10, place it on the top of the movable plate 9, and make the connecting block 8 pass through the middle of the reed 10, and fix the reed 10 on the top of the valve body 1 through the fixing rods 11 arranged in the array on the top of the protective shell 2, so that the device is assembled externally;

[0033] When the device is needed, the coil is energized through the pin 12, so that the coil cooperates with the iron coil frame 3 to form a magnetic field. At this time, the magnetic field formed by the coil frame 3 and the magnetic field formed by the magnet 7 repel each other, so that the magnet 7 moves upward, and the magnet 7 drives the movable plate 9 to move upward through the connecting block 8, while squeezing the spring leaf 10 set on the top of the movable plate 9, so that the spring leaf 10 bulges from the middle, and the airway 4 opened inside the coil frame 3 is opened;

[0034] When the coil is powered off, the magnetic field formed by the coil frame 3 disappears. At this time, the spring leaf 10 rebounds under the action of its own elasticity, and drives the connecting block 8 and the movable plate 9 to move downward, while causing the magnet 7 to move downward and be adsorbed inside the movable groove 5 opened on the top of the coil frame 3. At this time, the airway 4 opened inside the coil frame 3 is closed.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A reed-type micro solenoid valve, comprising a valve body (1), characterized in that: A protective shell (2) for installation is arranged inside the valve body (1), and a coil frame (3) for installing the coil is arranged inside the protective shell (2); a spring leaf (10) for rebound is arranged on the top of the valve body (1); a magnet (7) is arranged on the top of the coil frame (3), and the magnet (7) passes through the movable groove (5) and extends to the inside of the coil frame (3); a connecting block (8) is arranged on the top of the magnet (7), and a movable plate ( 9), and the movable plate (9) is snap-connected with the connecting block (8); a plug pin (12) is symmetrically mounted on one side of the valve body (1), a fixing rod (11) is mounted in an array on the top of the valve body (1), and the fixing rod (11) penetrates the reed (10) and extends to the outside thereof, and the fixing rod (11) is fixedly connected to the reed (10); the connecting block (8) penetrates the reed (10) and extends to the outside thereof, the reed (10) is a hollow flat plate, and the reed (10) is in contact with the movable plate (9); The cross section of the coil frame (3) is in the shape of an I-beam, a movable groove (5) is provided at the top of the coil frame (3), and an air passage (4) is provided through the bottom of the coil frame (3), and the middle part of the coil frame (3) is an iron rod; the air passage (4) is connected to the movable groove (5), and the size of the air passage (4) is smaller than the size of the magnet (7), and the cross section of the air passage (4) is in the shape of a convex letter; The coil is energized through the pin (12), so that the coil cooperates with the iron coil frame (3) to form a magnetic field. At this time, the magnetic field formed by the coil frame (3) and the magnetic field formed by the magnet (7) repel each other, thereby causing the magnet (7) to move upward. The magnet (7) drives the movable plate (9) to move upward through the connecting block (8), and at the same time, squeezes the spring leaf (10) provided on the top of the movable plate (9), so that the spring leaf (10) bulges from the middle. At this time, the airway (4) opened inside the coil frame (3) is opened; When the coil is powered off, the magnetic field formed by the coil frame (3) disappears, and the spring (10) rebounds under the action of its own elasticity, driving the connecting block (8) and the movable plate (9) to move downward, while causing the magnet (7) to move downward and be adsorbed inside the movable groove (5) opened at the top of the coil frame (3), and the airway (4) opened inside the coil frame (3) is closed.

2. A reed-type micro-solenoid valve according to claim 1, characterized in that: An insulating ring (6) is provided on the inner wall of the protective shell (2), and the protective shell (2) is connected to the top of the coil frame (3) via the insulating ring (6).

3. A reed-type micro-solenoid valve according to claim 1, characterized in that: The bottom of the coil frame (3) is in contact with the inner wall of the protective shell (2), and the height of the coil frame (3) is the same as the height of the protective shell (2).

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