KR20140126619A - Linear solenoid valve of artificial respiratory - Google Patents

Abstract

Disclosed is a linear solenoid valve for a respirator. According to the present invention, a coil is wound around a predetermined position of a plurality of plate springs fixed at the upper side of a bobbin in which a coil is wound around one side. Electric current is supplied to the coil of the bobbin through the plate springs as power is supplied to one side of the plate springs. Therefore, as the bobbin moves upwards, inhalation and discharge of air by a patient are controlled, thereby the linear solenoid valve can enable the patient to smoothly breath.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a linear solenoid valve for a ventilator,

[0001] The present invention relates to a linear solenoid valve for a ventilator, and more particularly, to a linear solenoid valve for a ventilator, To a linear solenoid valve for a respirator.

In general, artificial respiration refers to the expansion and contraction of the chest of a person who is in a state of uterus or insomnia, causing the respiratory action to resume, restoring the function of the heart, and revitalizing the respiratory system. Refers to a device that performs artificially.

A typical respirator is a device that pushes a pressurized gas into the lungs (as in a positive-pressure respirator) or pulls the gas into the lungs under predefined conditions and an actuator input schedule of gas composition, pressure, and flow pattern (Such as in a negative-pressure ventilator) and expanding the patient's chest space.

Generally, a solenoid valve applied to a ventilator is configured to move a movable core by an electromagnetic force (magnetic force) generated by applying a current to a coil wound, so that the solenoid valve is used in various fields. Hereinafter, a solenoid valve applied to a linear solenoid As an example,

FIG. 1 is a cross-sectional view of a conventional linear solenoid. The linear solenoid includes a hollow body 10 having open ends at both ends thereof, and a coil spring 21 installed at both inner sides of the body 10, A yoke 30 coupled to both ends of the body 10 to constitute a magnetic circuit together with the body 10 and a yoke 30 connected to the inside of the pair of coil bobbins 20, A movable iron core 40 reciprocating by an electromagnetic force acting on the coil bobbin 20 and inserted through the center of the movable iron core 40 and both ends of the yoke 30 are slidably inserted into the yoke 30, And a shaft (50) supported to support a reciprocating motion of the movable iron core (40).

A plurality of pins 60 are vertically installed around both ends of the body 10 to fix the body 10 and the yoke 30 so that the yokes 30 coupled to both ends of the body 10 can be fixed. Lt; / RTI >

A power terminal 70 is provided on the outer surface of the body 10 to supply power to the pair of coils 21 independently. In addition, the power terminal 70 prevents electric shock or fire, A ground terminal 75 connected to the body 10 is also installed to block electrical noise that may be generated.

A bushing 80, which is a non-magnetic material, is coupled to the center of the yoke 30 to slideably support the shaft 50.

On the other hand, a counterpart 5 (for example, a link or the like) to be reciprocated is coupled to one end or both ends of the shaft 50.

Therefore, when power is supplied to the one coil 21 of the pair of coils 21, the movable core 40 is moved toward the coil 21 by the electromagnetic force generated in the coil 21 The movable iron core 40 is moved to the side of the other coil 21 by the electromagnetic force generated in the other coil 21 when power is supplied to the other coil 21 after the power supply to the one side coil 21 is cut off .

The movable iron core 40 reciprocates while moving toward the coil bobbin 20 to which power is supplied in the pair of coil bobbins 20. At this time, the movable iron core 40 is coupled to one end or both ends of the shaft 50, Thereby moving the mating object 5.

However, a brush that forms a current flow from the power terminal 70 to one side of the coil 21 and the power terminal 70 through the coil 21 to the ground terminal 75 is exposed to the outside, The coil bobbin 20 and the central shaft member 40 reciprocate while simultaneously moving the coil bobbin 20 and the brush so that the coil 21 is wound by the frequent movement of the bobbin 20, And the durability of the product was deteriorated. The decrease in durability due to the disconnection of the coil has a problem that it can be fatal to the patient during artificial respiration operation.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a bobbin in which a coil is wound on a predetermined position of a plurality of leaf springs fixedly mounted on an upper surface of a bobbin on which a coil is wound, According to the power supply provided to one side, current is supplied to the coil of the bobbin through the leaf spring, and as the movable iron core moves upward, it controls the flow of intake and exhaust supplied to the patient, And to provide a linear solenoid valve for a ventilator which can provide the same.

According to an aspect of the present invention, there is provided a linear solenoid valve,

A body in which a permanent magnet generating an electromagnetic force according to an electric current flowing through the coil is fixedly inserted into the permanent magnet and a bobbin having a coil wound around the permanent magnet is inserted,

And a bobbin having the coil wound thereon and reciprocating by an electromagnetic force acting on the permanent magnet,

A bobbin coil wound on the bobbin is extended and wound on one side of the bobbin, a current flowing by a power source supplied from the outside is supplied to a coil wound on the bobbin, and the bobbin coil is wound on the bobbin by the electromagnetic force of the permanent magnet, A pair of leaf springs which are returned to their original positions when the power is turned off,

A damper member which is formed on an upper surface of the body and extends to a bending member formed by bending the bobbin so as to surround the bobbin and absorbs a shock of the bobbin when the bobbin moves;

And a housing member formed on an upper surface of the damper member formed on the body and having an intake port for guiding the air discharged from the patient in accordance with the movement of the bobbin and damper member and having an intake port, .

Preferably, the leaf spring

And a magnetic body for supplying a current generated by a power source supplied from the outside to a coil wound on the bobbin and supplied to a coil wound on the bobbin.

Preferably, each of the plurality of leaf springs comprises:

A pair of fixing members formed by bending the bobbin to be inserted therein and having a plurality of fixing grooves for fixing the bobbin to a predetermined position,

A current supply member extending from one side of the leaf spring and extending to a coil wound on the bobbin and wound with a coil,

And a power supply member formed on one side of the support and extending from the other side of the leaf spring and having a power supply member for receiving power supplied from the outside and transmitting the coil to the coil .

 Preferably,

And the plate spring is fixed to each of the upper surface and the lower surface of the bobbin by a combination of a screw and a bolt.

Preferably, the housing member comprises:

An intake port and an intake pipe passing through the air sucked from the patient by opening and closing by a bobbin reciprocating by a power source supplied in accordance with a predetermined breathing cycle,

And an exhaust pipe and an exhaust port for exhausting the air sucked through the intake pipe from the outside.

Preferably, the housing member comprises:

And the breathing air of the patient guided into the housing through the intake port is controlled to be discharged through the discharge port when the bobbin is transported in the downward direction.

Preferably, the housing member comprises:

The damper member closes the intake tube to shut off the flow of air when the bobbin is transferred in the upward direction.

As described above, in the linear solenoid valve for a ventilator according to the present invention, a coil wound on a bobbin is extended at a predetermined position of a leaf spring provided on an upper surface of a bobbin on which a coil is wound, A current flowing through the plate spring is supplied to the extended coil according to the power provided on one side so that one side of the coil connected to the power terminal is installed inside the body and one side of the coil is connected to the power terminal exposed to the outside The wire harness or brush of the existing solenoid valve is removed and damage to one side of the coil of the wire harness caused by frequent movement is eliminated, which has the advantage that the durability of the product can be fundamentally improved.

According to the present invention, a coil is wound on a predetermined position of a plurality of plate springs fixedly mounted on an upper surface of a bobbin on which a coil is wound, and a plurality of plate springs As the current is supplied to the coil of the bobbin and the bobbin is transferred in the upward direction, the flow of the intake air and the exhaust supplied to the patient is controlled, thereby providing a smooth breathing to the patient.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and, together with the description of the invention given below, serve to further understand the technical idea of the invention. And should not be construed as limiting.
1 is a diagram showing a configuration of a general linear solenoid valve.
2 is an exploded perspective view showing a configuration of a linear solenoid valve according to an embodiment of the present invention.
3 is a sectional view showing the configuration of the leaf spring shown in Fig.
FIG. 4A is a cross-sectional view showing the operating state of the linear solenoid valve shown in FIG. 2. FIG.
FIG. 4B is a sectional view showing the operating state of the linear solenoid valve shown in FIG. 2. FIG.

For a better understanding of the present invention and its operational advantages and the objects attained by the practice of the present invention, reference should be made to the accompanying drawings and the accompanying drawings which illustrate preferred embodiments of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the preferred embodiments of the present invention with reference to the accompanying drawings. Like reference symbols in the drawings denote like elements.

FIG. 2 is an exploded perspective view showing the configuration of a linear solenoid valve according to an embodiment of the present invention, FIG. 3 is a cross-sectional view showing a more detailed configuration of the leaf spring shown in FIG. 2, FIG. 5 is a cross-sectional view showing the operating state of the linear solenoid valve shown in FIG. 2. FIG. 5 is a sectional view showing the operating state of the linear solenoid valve shown in FIG.

The linear solenoid valve according to the embodiment of the present invention is characterized in that a coil wound on a bobbin is extended and wound on a predetermined position of a plate spring provided on each of upper and lower sides of a bobbin on which a coil is wound on one side, A current flowing through the leaf spring is supplied to an extended coil according to a power supplied to the bobbin, and the bobbin is vertically moved in accordance with the current flow of the bobbin to interrupt the breathing of the patient. 10, a permanent magnet 30, a leaf spring 50 of a bobbin 40, a damper member 60, and a housing 70.

Although the linear solenoid valve is cylindrical in the embodiment of the present invention, it is obvious that the linear solenoid valve can be modified by the manufacturer.

The body (10) inserts and fixes the permanent magnet (30) at a predetermined internal position.

Then, a bobbin 40 wound on a coil 41 is inserted into the permanent magnet 30, and the bobbin 40 is wound on a coil on the outer circumferential surface.

A plate spring 50 is fixed to the upper and lower sides of the bobbin 40, respectively.

3, the leaf spring 50 is provided as a magnetic body for supplying a current by a power source supplied from an external power supply member (not shown) to the coil 41, A pair of fixing members 51 having a plurality of grooves 51a bent to be inserted into the bobbin 40 and fixed at a predetermined position of the bobbin 40, A pair of current supply members 53 formed on the bobbin 40 and wound on the bobbin 40 to be wound a predetermined number of times and support rods 55a formed on the other side of the plate springs 50, The power supply member is inserted to supply power supplied from the outside through the power supply member (not shown) to the coil 41, which is formed on one side of the supporter 55a, An insertion hole 55c for transmitting the coil 41 to the supply member, And a pair of supporting members.

4, a power source provided in the insertion hole 55c of the support member of each of the leaf springs 50 is provided to the coil 41 through a support 55a formed of a magnetic material, 41 is provided to the coil wound on the bobbin 40, and an electromagnetic force is generated in the permanent magnet 30 in accordance with the flow of the electric current. The bobbin 40 is moved by the electromagnetic force and the leaf spring 50 is twisted and moved. The movement length is determined by the elastic force of the leaf spring.

The shape of the leaf spring 50 in the embodiment of the present invention may be modified by the manufacturer depending on the shape of the solenoid valve, which will be apparent to those skilled in the art.

The damper member 60 is formed by bending a cushioning material so as to surround the outer circumference of the bobbin 40 and the bobbin 40 is installed therein to absorb an impact when the bobbin 40 moves. (40).

That is, the bobbin 40 and the leaf spring 50 move according to the electromagnetic force generated by the permanent magnet 30, and the damper member 60 moves between the moving bobbin 40 and the housing member 70 Absorbs the impact that occurs. Therefore, the damper member 60 is usually made of a cushioning material and uses silicon or the like.

A housing member 70 is formed on the upper surface of the damper member 60. The housing member 70 is formed with an intake port 71 and an intake pipe 73 for guiding the breathing discharged from the patient An exhaust port 75 for discharging the air guided into the interior of the housing member 70 through the intake tube 73 in accordance with the reciprocating motion of the bobbin 40 to control the air flow is formed.

When the leaf spring 50 inserted in the upper and lower sides of the bobbin 40 moves and the damper member 60 blocks the intake tube 63 of the housing member 70, the air flow inside the housing is blocked, When the leaf spring 50 is restored and the damper member 60 is controlled to open the intake tube 73 of the housing member 70, the inside of the housing 70 ) Is discharged to the outside of the housing member (70) through the vent hole (75).

The shapes of the damper member 60 and the housing member 70 are not limited to the embodiments of the present invention and modifications of the shapes of the damper member 60 and the housing member 70 will be apparent to those skilled in the art.

Meanwhile, the process of discharging the internal air of the housing to the outside through the exhaust port 75 will be described in more detail with reference to FIGS. 4A and 4B.

FIG. 4A is a view showing a flow of air supplied from a patient when the bobbin and the leaf spring are supplied by power supply through the power supply member, FIG. 4B is a view showing the flow of air supplied from the patient when the leaf spring is returned to the home position, Fig. 8 is an example of a flow of air.

4A, when a power supply member (not shown) is inserted into the insertion hole 55c of the leaf spring 50 and power is supplied, the current flows through the coil 41 of the leaf spring 50 of the magnetic body, To the coil of the bobbin 40. [

An electromagnetic force is generated in the permanent magnet 30 by the current flowing through the coil 41 of the bobbin 40 and the plate spring 50 inserted in the upper and lower sides of the bobbin 40 is moved by the electromagnetic force .

At this time, the damper member 60 surrounding the moving bobbin 40 blocks the suction tube 73 of the housing member 70, so that the flow of air discharged from the patient is blocked.

The process of discharging the air supplied through the respiration when the power source is shut off and the leaf spring is restored will be described in more detail with reference to FIG. 4B.

When a power supply member (not shown) is inserted into the insertion hole 55c of the leaf spring 50 and the power supplied to the leaf spring 50 is cut off, the current flows through the coil 41 of the leaf spring 50 of the magnetic body To the coils of the bobbin 40. [0050]

Therefore, since the electromagnetic force is not generated in the permanent magnet 30 by the current flowing through the coil 41 of the bobbin 40, the plate spring 50 on the upper and lower sides of the bobbin 40 is returned to the original position.

At this time, the damper member 60 surrounding the moving bobbin 40 is controlled to open the intake tube 73 of the housing member 70, so that the air supplied from the patient provided through the intake opening 71 flows into the housing And is discharged to the outside through the discharge port (75).

According to the embodiment of the present invention, a coil wound on a bobbin at a predetermined position of a leaf spring inserted between a bobbin on which a coil is wound on one side and a center shaft member is wound and extended according to a power source provided on one side of the leaf spring Since the current flowing through the leaf spring is supplied to the coil extended to the coil and the bobbin, a coil connected to the power terminal is installed in the inside of the body and the power terminal exposed to the outside is connected to one side of the coil. The durability of the product is further improved since the wire harness or brush of the valve is removed and damage to one side of the coil of the wire harness caused by frequent movement is eliminated.

According to an embodiment of the present invention, a coil is wound on a predetermined position of a plurality of plate springs fixedly mounted on an upper surface of a bobbin on which a coil is wound, The current is supplied to the coil of the bobbin through the spring, and the bobbin moves upward, thereby controlling the flow of the intake and exhaust supplied to the patient, thereby providing a smooth breathing to the patient.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

A coil is wound on a predetermined position of a plurality of leaf springs fixedly mounted on an upper surface of a bobbin on which a coil is wound and a current is supplied to the coil of the bobbin through a leaf spring in accordance with the supply of power provided on one side of the leaf spring The linear solenoid valve for a ventilator which provides a smooth breathing to the patient as the bobbin moves in the upward direction and controls the flow of intake and exhaust supplied to the patient, And the linear solenoid valve applied to the ventilator is not only commercially available, but also has a possibility to be practically and practically usable.

Claims (7)

A body in which a permanent magnet generating an electromagnetic force according to a current flowing through a coil is inserted and fixed and a bobbin having a coil wound around the permanent magnet is inserted;
And a bobbin having the coil wound thereon and reciprocating by an electromagnetic force acting on the permanent magnet,
A bobbin coil wound on the bobbin is extended and wound on one side of the bobbin, a current flowing by a power source supplied from the outside is supplied to a coil wound on the bobbin, and the bobbin coil is wound on the bobbin by the electromagnetic force of the permanent magnet, A pair of leaf springs which move to the original position when the power is turned off,
A damper member which is formed on an upper surface of the body and extends to a bending member formed by bending the bobbin so as to surround the bobbin and absorbs a shock of the bobbin when the bobbin moves;
And a housing member formed on an upper surface of the damper member formed on the body and having an intake port for guiding the air discharged from the patient in accordance with the movement of the bobbin and damper member and having an intake port, A linear solenoid valve for a ventilator. 2. The apparatus of claim 1, wherein each of the pair of leaf springs
Wherein the magnetic solenoid valve comprises a magnetic body for supplying a current generated by an external power source to a coil wound on the bobbin to be wound into a coil. The apparatus of claim 1, wherein each of the pair of leaf springs comprises:
A pair of fixing members formed by bending the bobbin to be inserted therein and having a plurality of fixing grooves for fixing the bobbin to a predetermined position,
A current supply member extending from one side of the leaf spring and extending to a coil wound on the bobbin and wound with a coil,
And a power supply member formed on one side of the support and extending from the other side of the leaf spring and having a power supply member for receiving power supplied from the outside and transmitting the coil to the coil A linear solenoid valve for a ventilator. The apparatus according to claim 3,
And a plurality of leaf springs are fixed to the top and bottom surfaces of the bobbin by a combination of a screw and a bolt. 5. The apparatus of claim 4, wherein the housing member comprises:
An intake port and an intake pipe passing through the air sucked from the patient by opening and closing by a bobbin reciprocating by a power source supplied in accordance with a predetermined breathing cycle,
And an exhaust pipe and an exhaust port for exhausting the air sucked through the intake pipe from the outside. 6. The apparatus according to claim 5,
Wherein the bobbin is controlled to be opened and closed when the bobbin is conveyed in a downward direction so that respiratory air of the patient guided into the housing through the intake port is discharged through the discharge port. 6. The apparatus according to claim 5,
Wherein when the bobbin is conveyed upward, the intake tube is closed and controlled by the damper member to block the flow of air.

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