WO2019117358A1 - Nano- and micro-structured air purifier capable of collecting and detecting particulate matter - Google Patents

Abstract

A nano- and micro-structured air purifier capable of collecting and detecting particulate matter, according to one embodiment of the present invention, comprises: a housing; a power part coupled to the upper part of the housing and having a rotational shaft; a head part coupled to the rotational shaft; and blades detachably coupled to the head part and comprising nanofibers and nanopores.

Description

Fine dust collection and detectable nano- and microstructure air purification devices

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a nano- and micro-structure air cleaning apparatus capable of dust collection and detection, and more particularly, to an apparatus for removing fine dust in air by providing nano- .

The constituents of the fine dust may vary depending on the area where the fine dust is generated, the season, weather conditions, and the like. Generally, air pollutants consist of lumps (sulfate, nitrate, etc.) formed by reacting in the air, carbon and soot generated in the process of burning fossil fuels such as coal and petroleum, and minerals generated from earth surface dust and the like.

Dust can be divided into total suspended particles (TSP) and particulate matter (PM) that are less than 50 μm depending on the size of the particles. The fine dust is again divided into micro dust PM10) and ultrafine dust particles (PM2.5) smaller than 2.5㎛ in diameter. If PM10 is about 1/5 to 1/7 smaller than human hair diameter (50 ~ 70㎛), PM2.5 is very small, about 1/20 ~ 1/30 of hair.

Most of the dust is filtered out from the nose hair or bronchial mucosa. On the other hand, the fine dust (PM10) is very small, less than 10 ㎛ in diameter, which is about 1/5 to 1/7 of the thickness of human hair. It penetrates into our body.

If the concentration and composition of the fine dust are the same, the smaller the particle size, the more harmful to health. In the same concentration, PM2.5 has a larger surface area than PM10, so other harmful substances can be adsorbed more. It is also likely to migrate from the bronchus to other human organs because the particle size is smaller.

Once fine dust enters our body, the cells responsible for immunity function to remove dust and protect our body, which is a side effect of inflammation. These inflammatory reactions in the organs of our body, such as airways, lungs, cardiovascular, and brain, can cause asthma, respiratory or cardiovascular diseases.

In order to solve this problem, there is a conventional technology in which a plurality of wire rods are woven in a longitudinal direction and a widthwise direction to form a mesh net, and a nonwoven fabric or a filter cloth having static electricity is placed on the protection net of the device to remove dust in the air. Has a problem that the productivity is deteriorated due to short exchange and washing cycles, and the durability is poor when frequent washing, shortening the life span of the filter.

(Prior Patent Document) Korean Registered Utility Model No. 20-0291790

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a nanostructure wing using nanofibers and nano pores to collect minute dust and ultrafine dust and to detect fine dust.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not intended to limit the invention to the precise form disclosed. There will be.

According to an aspect of the present invention, there is provided a portable terminal including a housing, a power unit coupled to an upper portion of the housing and having a rotation shaft, a head coupled to the rotation shaft, And nanostructure wings composed of nanofibers and nanopores.

In the embodiment of the present invention, the head portion may include a fixing plate formed at one side thereof and formed with an insertion groove into which the rotation shaft is inserted and a protrusion protrusion coupled with the nano-structured wing at the other side, And an elastic body that is wound around the connecting rod and has one end coupled to the fixed plate and the other end coupled to the moving plate.

According to an embodiment of the present invention, the nanostructure wing is formed with a coupling hole to be engaged with the protrusion projection.

According to an embodiment of the present invention, the nanostructured wing constitutes a passage through which water flows, and the passage further includes a plurality of fine holes.

In the embodiment of the present invention, it is further characterized by a water supply means coupled to one side of the head portion and supplying water to the flow path.

According to an embodiment of the present invention, the water supply means further comprises a water storage portion, a motor pump for supplying water to the flow path, and a control valve for controlling the amount of water.

According to an embodiment of the present invention, the nanostructure wing further includes a dust collecting electrode formed on an outer circumferential surface thereof, and the head portion further includes a discharge electrode formed facing the dust collecting electrode.

The apparatus may further include a voltage generator connected to one side of the head to apply a voltage to the discharge electrode and the dust collecting electrode.

According to an embodiment of the present invention, the head further includes a protection case having a lattice shape or a plurality of holes formed therein so as to allow air to flow in and out, and to surround the discharge electrodes and the outside of each of the nanostructured wings.

The effect of the present invention with the above-described structure is that it is possible to collect fine dust and ultrafine dust using nano-structured wings including nanofibers and nano pores, It is easy.

In addition, the efficiency of fine dust collection can be increased by combining an electrostatic precipitator and a wet dust collector with the wings of the nanofiber material.

In addition, nanostructures can be used to detect fine dust and ultrafine dust.

It should be understood that the effects of the present invention are not limited to the above effects and include all effects that can be deduced from the detailed description of the present invention or the configuration of the invention described in the claims.

FIG. 1 is a side view of a nano- and micro-structure air purifier capable of dust collection and sensing according to an embodiment of the present invention.

FIG. 2 is an exploded view of a nano- and microstructure air cleaning apparatus head for dust collecting and sensing according to an embodiment of the present invention.

FIG. 3 is a view of adding a water supply means and a flow path to a nano- and micro-structure air cleaning apparatus capable of dust collection and detection according to an embodiment of the present invention.

FIG. 4 is a view illustrating a wet dust collecting apparatus in addition to a fine dust collecting and detecting nano- and micro-structure air purifying apparatus according to an embodiment of the present invention.

FIG. 5 is a view of an electrostatic precipitator added to a nano-and micro-structure air cleaning apparatus according to an exemplary embodiment of the present invention.

6 is a view of an electrostatic precipitator in a fine dust collecting and sensing nano- and micro-structure air purifying apparatus according to another embodiment of the present invention.

FIG. 7 is an explanatory view of the electrospinning of nanofibers according to one embodiment of the present invention.

FIG. 8 is a view illustrating how a frame part is passed through a collector frame according to an embodiment of the present invention. Referring to FIG.

9 is a view illustrating an embodiment of transferring a nanofiber mesh according to an embodiment of the present invention onto a film.

10 is an SEM image of a nanofiber mesh according to an embodiment of the present invention.

According to a preferred embodiment of the present invention, there is provided a magnetic head comprising: a housing; a power section coupled to an upper portion of the housing and having a rotating shaft; a head portion coupled to the rotating shaft; And nano-structured wings composed of pores.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when a part is referred to as being "connected" (connected, connected, coupled) with another part, it is not only the case where it is "directly connected" "Is included. Also, when an element is referred to as "comprising ", it means that it can include other elements, not excluding other elements unless specifically stated otherwise.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a side view of a nano-and micro-structure air cleaning apparatus according to an exemplary embodiment of the present invention. FIG. 2 is a cross- FIG. 3 is a view of adding a water supply means and a flow path to a nano- and micro-structure air cleaning apparatus capable of dust collection and detection according to an embodiment of the present invention. FIG. FIG. 5 is a view of a micro dust collector and sensible nano and microstructure air purifier according to an embodiment of the present invention, FIG. 6 is a view showing an embodiment of a fine dust collecting and sensing device according to another embodiment of the present invention; FIG. And a view on the microstructure of the air purification system.

1 and 2, an exemplary embodiment of the present invention is a dust collecting and detecting micro-dust and air-purifying apparatus having a housing 1000, a housing 1000 coupled to the rotating shaft 2100, The nano structure detachably coupled to the head unit 3000 and the head unit 3000 coupled to the rotating shaft 2100 and composed of nanofibers and nano pores is composed of a wing 4000 do.

The housing 1000 supports the power unit 2000 and generates power in the power unit 2000 so that the rotation axis 210 rotates. Since this is a technique widely used in conventional fans, a detailed description will be omitted.

The head unit 3000 includes a fixing plate 3100 having an insertion groove 3110 in which the rotation shaft 2100 is inserted and a protrusion protrusion 3120 coupled to the nano structure vane 4000, A connecting rod 3200 coupled to a side where the protrusion protrusion 3120 is formed and a moving plate 3300 and a connecting rod 3200 which are movably inserted into the connecting rod 3200. The connecting rod 3200 has one end fixed to the fixing plate 3100, And an elastic body 3400 coupled to the moving plate 3300 at the other end.

The rotation shaft 2100 is inserted and fixed to the insertion groove 3110 of the fixing plate 3100. At this time, a female thread is formed in the insertion groove 3110, and a male screw thread is formed on the rotary shaft 2100 and screwed or inserted into the insertion groove 3110 by inserting the rotary shaft 2100 in an interference fit manner.

The protrusion protrusion 3120 is formed on the other side of the fixing plate 3100 in which the insertion groove 3110 is formed and the number of the protrusion protrusions 3120 is determined according to the number of the nanostructure wings 4000.

The connecting rod 3200 is coupled to the side surface of the fixing plate 3100 formed with the protrusion protrusion 3120 and inserted through the center of the moving plate 3300. The moving plate 3300 is axially movable with respect to the connecting rod 3200.

The elastic body 3400 is wound around the connecting rod 3200 so that one end is coupled to the fixed plate 3100 and the other end is coupled to the moving plate 3300. At this time, due to the property of returning to the original shape of the elastic body 3400, the moving plate 3300 is moved and is brought into contact with the protrusion protrusion 3120 so that the nanostructure wing 4000 can be prevented from being detached from the protrusion protrusion 3120 have.

At one end of the nanostructure wing 4000, a coupling hole 4100 is formed to be coupled with the protrusion protrusion 3120, thereby enabling detachment. The nano-structured wing 4000 moves the moving plate 3300 by applying an external force to the moving plate 3300 of the head unit 3000 and moves the moving plate 3300 between the moving plate 3300 and the protruding projection 3120 The engaging hole 4100 can be easily inserted into the protrusion protrusion 3120. [ When the external force applied to the moving plate 3300 after the insertion is removed, the moving plate 3300 is brought into contact with the protruding projection 3120 to prevent the nanostructure vane 4000 from being detached.

The nanostructure wing (4000) can detect fine dust, including nanostructures consisting of nanofibers and nanopores and 3D microstructures.

The nanopore size of the nanostructure wing (4000) can be composed of PM0.1 for collecting ultrafine dust, PM2.5 for collecting fine dust, and PM10 for collecting large dust. However, the size of the nano pores is not fixed, and it is possible to form nano pores according to the sizes of the ultrafine dust and fine dust to be collected, and to collect ultrafine dust and fine dust. For example, in order to collect ultra fine dust of PM1, nanopores smaller than PM1 may be formed.

The nanostructure wing 4000 is equipped with a measurement device (not shown) capable of measuring the amount of fine dust collecting in the nano pores and a display (not shown) indicating the measured value measured by the measuring device can do. Before spinning, the amount of fine dust in the nano pores is measured and the amount of fine dust collected by rotating the wings of the nanostructure is calculated for a predetermined time, so that the amount of fine dust in the air can be known.

The combination and action of the fine dust collecting and sensing nano- and micro-structure air purifying apparatus with the above-described configuration will be described.

The rotating shaft 2100 is rotated by the power supplied from the power unit 2000, and the head unit 3000 is rotated. At this time, the nanostructured wing 4000 coupled to the head unit 3000 rotates, and the air in the rear passes through the nanostructure vane 4000 and moves forward. Nanostructure wings (4000) are formed of nanofibers and nano pores, and fine dust in the air is collected in the nanostructure wing (4000), and clean air is discharged.

When an elastic force is applied to the moving plate 3300 by applying an external force to remove fine dust collected in the nanostructure wing 4000, a space is formed between the protruding protrusion 3120 and the moving plate 3300, (4000) can be separated. The nanostructure wing 4000 can be cleaned or replaced and easily inserted again into the protruding projection 3120. [

3 to 4, a channel 4200 having a plurality of fine holes 4210 formed therein is formed in the nanostructure wing 4000, and water supplied from the water supplying means 5000 is supplied to the fine holes 4210. [ And the nanostructure vanes 4000 are wetted with water.

At this time, the degree of wetting of the nanostructured wing (4000) with water is suitable to a degree of feeling a little water when it is touched with the hand.

The combination and action of the wet dust collector in the nano- and micro-structure air purifier capable of dust collection and detection with the above-described configuration will be described.

Water is supplied to the flow path 4200 by the motor pump 5200 and water is sprayed through the fine holes 4210 to moisturize the nanostructure vanes 4000. After the amount of water supplied to the regulating valve 5300 is adjusted, the rotating shaft 2100 is rotated by the power supplied from the power unit 2000, and the head unit 3000 is rotated.

As the head unit 3000 rotates, the nano-structured wing 4000 rotates, and the air in the rear side moves forward. At this time, fine dust is collected in the nanostructure wing (4000) composed of nanofibers and nano pores, and the nanostructure wing (4000) is wetted and the dust collecting efficiency becomes high.

When the nanostructure wing (4000) rotates and water evaporates, the room air can be made better by the humidification effect.

5, a dust collecting electrode 4300 is formed on the outer circumferential surface of the nanostructure vane 4000 and a discharge electrode 3500 is formed on the head portion 3000 to face the dust collecting electrode 4300 of the nanostructure vane 4000. [ ) Is installed. The head unit 3000 further includes a dust collecting electrode 4300 and a voltage generator 6000 for applying a voltage to the discharge electrode 3500. When a voltage is applied to the discharge electrode 3500 and the dust collecting electrode 4300 in the voltage generator 6000, a corona discharge occurs.

The head part 3000 includes a protective case 3600 having a grid or a plurality of holes so that air can flow in and out. The protection case 3600 is coupled to the nanostructure vane 4000 and the discharge electrode 3500 so as to prevent foreign matter from entering. Also, the protective case 3600 is made of an insulating material, so that the user's accident can be prevented.

The combination and action of the electrostatic precipitator combined with the fine dust collecting and detecting nano- and microstructure air purifying apparatus with the above-described configuration will be described.

A corona discharge is generated between the discharge electrode 3500 and the dust collecting electrode 4300 when a voltage is applied to the discharge electrode 3500 and the dust collecting electrode 4300 in the voltage generator 6000. The dust particles in the air are anionized by the corona discharge and the anionized dust particles are collected in the nanostructure wing 4000 having the dust collecting electrode 4300.

The rotating shaft 2100 is rotated by the power supplied from the power unit 2000, and the head unit 3000 is rotated. At this time, the nanostructured wing 4000 coupled to the head unit 3000 rotates, and the air in the rear passes through the nanostructure vane 4000 and moves forward. Nanostructure wings (4000) are formed of nanofibers and nano pores, and fine dust in the air is collected in the nanostructure wing (4000), and clean air is discharged. Therefore, the efficiency of dust collection can be increased by using electrostatic dust collecting, nanostructure wings (4000) composed of nanofibers and nano pores.

As shown in Figure 6, nanostructured wings made of nanofibers and nanopores can be used in a fan. A first fan 8000 coupled to one side of the first fan 7000 to allow the air in the fan to flow into the fan, A second fan 9000 is provided. When the first motor 8200 of the first fan 8000 is driven, air in the external space flows into the interior of the first fan 8000, and fine dust is collected in the nano-structured first wing 8100 composed of nanofibers and nano pores, Air with fine dust removed is supplied. When the second motor 9200 of the second fan 9000 is driven, the air in the inner space is discharged to the outer space, and the fine dusts are collected and discharged to the nano-structured second blade 9100. Therefore, only the clean air from which the fine dust is removed remains in the inner space of the first zone 7000.

Hereinafter, a method for producing a nanofiber film forming the nanostructured wing 4000 of the nanofiber apparatus of the present invention will be described.

By bonding the nanofiber film of the present invention to the nanostructured wing 4000 of the nanofiber device, the nanostructured wing 4000 described above can be formed.

FIG. 7 is an explanatory view of an electrospun nanofiber according to an embodiment of the present invention. FIG. 8 is a cross-sectional view illustrating a state in which a frame part 100 is passed through a collector frame 10 according to an embodiment of the present invention. FIG. 9 is a view illustrating an operation of passing the frame unit 100 through the carbonization unit 50 according to an embodiment of the present invention. Referring to FIG.

8 (a) shows a state before the frame section 100 passes through the collector frame 10, and FIG. 8 (b) shows a state in which the frame section 100 passes through the collector frame 10, Can be shown to be in contact with the fiber mesh 210.

9 is a view illustrating an embodiment of transferring the nanofiber mesh 210 onto the film 40 according to an embodiment of the present invention.

As shown in FIGS. 7 to 9, the nanofiber manufacturing method of the nanofibers 4000 of the nanofiber apparatus of the present invention includes a syringe unit 30 for electrospinning a polymer solution A collector frame 10 disposed at a lower portion of the syringe portion 30 and functioning as a collector for arranging the nanofibers emitted from the syringe portion 30 to form the nanofiber mesh 210, And a jig portion 20 serving as a ground to support the collector frame 10 and a polymer solution is electrospun from the syringe portion 30 to the collector frame 10, A second step of forming the mesh 210 and a third step of passing the frame part 100 through the inner space of the collector frame 10 and bonding the nanofiber mesh 210 to the frame part 100, 210) is transferred to the film 40 to form a nanofiber film Series, and a plurality of nano-fiber film bonded to the nanostructure blade (4000) may comprise the step of forming the nanostructure wings (4000).

The collector function is a function of forming an electric field between a collector and a tip of a syringe 30 for electrospinning a polymer solution and forming a polymer solution in the form of fibers at the tip of the syringe 30 It may mean the function that the fibers are adhered to the collector by the attractive force of the electric field.

When the collector frame 10 performs a collector function, electricity may be supplied to the collector frame 10 to form an electric field between the collector frame 10 and the syringe 30.

In the third step, the frame part 100 moves upward in the lower direction of the collector frame 10, and can pass through the inner space of the collector frame 10.

The frame part 100 can be coupled to a driving part that moves the frame part 100 up and down and rotates.

The driving unit (not shown) may include an actuator for moving the frame unit 100 up and down, and a rotating motor for rotating the frame unit 100. The driving part drives the frame part 100 to move up and down and pass through the inner space of the collector frame 10 to be bonded to the nanofiber mesh 210. By driving the driving unit, the frame unit 100 can perform rotational motion to change the angle of adhesion to the nanofiber mesh 210.

The film 40 may be made of one or more materials selected from the group consisting of polyimide (PI), polyethylene naphthalate (PEN), polyethylene terephthalate (PET), polyurethane, polyethersulfone (PES) and polystyrene As shown in FIG.

In the embodiment of the present invention, it is explained that the film 40 is formed of the materials listed above, but the present invention is not limited thereto, and a material that can be a transfer target when it is formed into a plate form can be used.

The frame portion 100 is formed of at least one metal selected from a group of high melting point metals made of copper (Cu), iron (Fe), cobalt (Co), nickel (Ni), chromium (Cr), titanium . In the embodiment of the present invention, the frame part 100 is formed of the above-described material, but the present invention is not limited thereto.

In the frame part 100, a plurality of grooves may be formed on the surface contacting with the nanofiber mesh 210. The surface of the frame part 100, which is in contact with the nanofiber mesh 210, may be hairline-processed or scratch-processed.

As described above, when a plurality of grooves are formed on the surface of the frame part 100 in contact with the nanofiber mesh 210, the adhesion between the frame part 100 and the nanofiber mesh 210 can be improved.

The nanofiber mesh 210 may be patterned on the collector frame 10 or may be formed in an irregular shape.

The plurality of nanofiber films formed by the process as described above may be bonded to all or a part of the nanostructure wing 4000. Here, the plurality of nanofiber films can be adhered to the nanostructure vanes 4000 by an adhesive. However, the bonding method is not limited to bonding.

10 is an SEM image of a nanofiber mesh 210 according to an embodiment of the present invention.

Here, FIG. 10 is an SEM image of a nanofiber forming a nanofiber mesh 210 and having a diameter of 600 to 700 nanometers (nm).

As shown in FIG. 10, the nanofibers formed on the film 40 form a plurality of minute spaces and are formed on the film, so that the contact surface area with the fine dust may increase.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

(Explanation of Symbols)

10: collector frame 20: jig

21: jig electrode 30: syringe

40: film 50: carbonized part

100: frame part 210: nanofiber mesh

1000: housing 2000: power unit

2100: rotation shaft 3000: head part

3100: fixing plate 3110: insertion groove

3120: projecting projection 3200: connecting rod

3300: Moving plate 3400: Elastic body

3500: discharge electrode 3600: protective case

4000: nano structure wing 4100: coupling hole

4200: Euro 4210: Fine hole

4300: dust collecting electrode 5000: water supply device

5100: Water storage part 5200: Motor pump

5300: Regulating valve 6000: voltage generating device

7000: first zone 8000: first fan

8100: nano structure first wing 8200: first motor

9000: second fan 9100: nano-structured second wing

9200: Second motor

Claims (9)

1. housing;

   A power unit coupled to the housing and having a rotation axis;

   A head coupled to the rotating shaft; And

   A nanostructure vane detachably coupled to the head portion and comprising nanofibers and nanopores;

   A micro dust collector and a detectable nano and microstructure air purification device.
2. The method according to claim 1,

   Wherein the head portion is formed at one side thereof with an insertion groove formed to be recessed therein and into which a rotation shaft is inserted, and a protrusion protrusion coupled to the wing at the other side is formed;

   A connecting rod coupled to a side surface of the protrusion;

   A moving plate movably inserted into the connecting rod; And

   And an elastic body wound around the connecting rod and having one end coupled to the fixed plate and the other end coupled to the moving plate. ≪ Desc / Clms Page number 20 >
3. 3. The method of claim 2,

   Wherein the wing is formed with a coupling hole to be engaged with the protruding projection.
4. The method according to claim 1,

   Wherein the vanes constitute a flow path for water to flow therein, and the flow path further includes a plurality of fine holes.
5. 5. The method of claim 4,

   And a water supply unit coupled to one side of the head unit to supply water to the flow path.
6. 6. The method of claim 5,

   Wherein the water supply means further comprises a water reservoir, a motor pump for supplying water to the flow path, and a regulating valve for regulating the amount of water.
7. The method according to claim 1,

   Further comprising a dust collecting electrode formed on an outer circumferential surface of the blade and a discharge electrode formed to face the dust collecting electrode.
8. 8. The method of claim 7,

   Further comprising a voltage generator coupled to one side of the head to apply a voltage to the discharge electrode and the dust collecting electrode.
9. 8. The method of claim 7,

   Wherein the head further comprises a protective case formed in a lattice shape or a plurality of holes so as to allow the air to flow in and out, and surrounding each of the wings and the discharge electrode, wherein the micro dust collecting and sensing nano- .

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